Slide 1

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 2

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 3

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 4

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 5

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 6

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 7

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 8

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 9

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 10

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 11

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 12

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 13

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 14

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 15

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 16

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 17

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged


Slide 18

Repairable Parts for LCD Panels
POLARIZER FILM

LCD GLASS

SOURCE PCB
(Timing Controller PCB)
SOURCE
DRIVER IC

1.TFT/ LCD Glass
a. LCD Glass (incl. Colour Filter, ITO lines ,Thin Film Transistor)
b. Polarizer Film (Front, Rear)
2.Gate PCB (PWB) , Gate Driver IC
3.Source PCB (LCD Timing Controller PCB ),Source Driver IC
4.Interface Connector (Flex Cable)
5.Backlite(inverter) PCB
6.CCF lamp. (Cold cathode florescent lamp)
7.Diffuser, lens sheet, light guide, reflector sheet

GATE PCB
GATE
DRIVER IC

Usage Areas
LCD TV, PDP TV, Lap top Computer, LCD Monitor, Mobile Phone, PDA, Car Navigation System

Laptop & Notebook LCDs

LCD TV

LCD Panel Repair Laboratory

• Class 1000 Clean Room
• Air Shower Entrance
• ZERO Clean Module
• (Polarize Film Replacement)
• ESD control
• Special Anti-Dust Clothing

Necessary Devices for LCD Panel Repair
• Bonding Machine
Laminator & Delaminator
BGA/SMD Rework Machine
Special Microscope
• ITO Tester
• Colour Analyzer
• LCD panel tester
• Testing Cabin

Electronic Laboratory
Component level Repair
PCB Repair (Laptop PCB, LCD PCB etc)
Analog Board Repair (Power Supply, CRT monitor PCB
etc)
Antistatic area, ESD Control
SMD/BGA Rework Station
Oscilloscope, Millimeters, Fault Locator, PCB test &
Trouble Shooting System, Powers Supply Load Tester

LCD Panel Electronic Repair
PCBs on the TFT LCD Panel
• GATE PCB
• SOURCE PCB
• BACK LIGHT PCB
No image, contrast problems, visual problems
Defective electronic component can be determined by
our special measuring and comparison devices. All
components can be replacement in our laboratory by
BGA and SMD Rework Station.

Mechanic or Cosmetic Repair
Damageable parts as mechanic ;
• Diffuser
• Lens Sheet
• Light Guide
• Reflector Sheet
• CCFL Lamp
The parts that above are losing their specialties because
of the unsuitable conditions. This happen caused to
colour decrement and disappearing image on LCD

Problems and Solutions in LCD Panel
A) Polarizer Film Replacement

B) Driver IC Replacement (COG,TCP Tab, COF)
(Horizontal and Vertical lines on LCD Panel)
* Gate Driver IC Replacement (on LCD glass)
* Gate Driver IC Replacement (on PCB)
* Source Driver IC Replacement (on LCD glass)
* Source Driver IC Replacement (on PCB)
C) CONNECTOR Replacement
D) Defect Pixel, Colour Filter ,ITO Line Problems

Polarizer Film Replacement
Damaged polarizer films are removed from LCD panel in no dust atmosphere
LCD Panel’s glass is cleaned by a special chemical.
New polarizer film is placed in no dust atmosphere
Colour degree and luminance test is done with Colour Analyzer
General test (Test Box 40 C)

Driver IC Replacement (TCP Tab, COG, COF)
The reason of the changing IC driver is horizontal and vertical lines on LCD Panel.
Except this vision missing can be seen in some areas.

Remove Driver IC from LCD panel
Finding the reason of the lines on LCD panel (ITO Tester)
Cleaning the remaining ACF from LCD glass
Determine to ACF type
Determine pressing heat and pressure
Pressing test and Peeling test
General test (Test box 40C)

Vertical Line Problem

Driver IC Problem

Contrast Problem

Polarizer Film Problem

Driver IC and Source PCB Are Damaged

Source PCB Is Damaged