Transcript 新型全視角光學膜在不同顯示器的應用

新型全視角光學膜在不同顯示
器
的
應
用
New optical films for improving
viewing
angle
performance
of
displays
Chi Mei Visual Technology / 奇美視像科技
奇美材料科技/崑山之奇美材料科技
李汪洋 / Walter Li 2014/10/15
CHIMEI VISUAL1 TECHNOLOGY CORP.
Confidential
大纲
•
全视角光学薄膜的概念与原理
The concept of the Omniwide film
•
全视角光学薄膜的应用实例
The applications of the Omniwide films
•
全视角光学薄膜的推广与展望
The prospects of the Omniwide films
•
小结 / Summary
CHIMEI VISUAL2 TECHNOLOGY CORP.
Confidential
Current LCD Characteristics
典型LCD視角特性
Wash-out image
泛白影像
Gray levels
properly displayed
Conventional
BLU
普通背光模组
正确的灰阶影像
LC cell
液晶盒
Gray level inversion
灰阶反转 -失真影像
CHIMEI VISUAL3 TECHNOLOGY CORP.
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Ideal wide-view Mode
理想的广视角模式
LC cell
Close direct view
同正视影像
Direct view
正视影像
Collimated
BLU
准直背光
Close to direct view
同正视影像
全视角光学馍片
Omniwide Film
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current LCD with Omniwide film
目前实用全视角LCD
Wash-out image
修正的泛白影像
LC cell
Gray levels
properly displayed
Conventional
BLU
普通背光模组
正确的灰阶影像
Gray level inversion
全视角光学馍片
Omniwide Film
无灰阶反转 -修正的影
像
CHIMEI VISUAL5 TECHNOLOGY CORP.
Confidential
Compensation Concept
Lower view
下视角
全视角膜补偿概念
Normal View
Normal View
Lower view
下视角
Good!
~ -10 to -15%
GSI Signal
灰阶反转信息
Lower View
LCD module
下视角
Compensated Signal
补偿影像光
GSI Signal
Omniwide film
全视角补偿膜
灰阶反转信息
Lower View
下视角
LCD module
GSI: Gray Scale Inversion, 灰阶反转
CHIMEI VISUAL6 TECHNOLOGY CORP.
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由VA到MVA LCD
Single domain VA mode
单畴垂直配向LC模态
Multi-domain VA mode
多畴垂直配向LC模态
CHIMEI VISUAL7 TECHNOLOGY CORP.
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Distinctive Approach for Widen view-angle
扩增视角做法的差异
Omniwide Film
全视角补偿膜
Conventional compensation film
传统相位补偿膜
Omniwide-Film
Top Pol. / 偏光板
Top Pol. / 偏光板
LC Cell/ 液晶盒
Bottom Pol. / 偏光板
Comp. Film / 相位差膜
BLU
LC Cell/ 液晶盒
Comp. Film /相位差膜
Bottom Pol. / 偏光板
BLU
CHIMEI VISUAL8 TECHNOLOGY CORP.
Confidential
大纲
•
全视角光学薄膜的概念与原理
The concept of the Omniwide film
•
全视角光学薄膜的应用实例
The applications of the Omniwide films
•
全视角光学薄膜的推广与展望
The prospects of the Omniwide films
•
小结
Summary
CHIMEI VISUAL9 TECHNOLOGY CORP.
Confidential
Improvement of an EWV-TN LCD
W/O Omniwide Film
W/ Omniwide Film
Gamma Curve
(θ, φ )=(45,90)
(θ, φ )=(0,0)
(θ, φ )=(45,270)
Asymmetric
Omniwide Film
CHIMEI VISUAL
10TECHNOLOGY CORP.
Confidential
Performance of EWV- TN
(θ, φ )=(45,135)
(θ, φ )=(45,90)
(θ, φ )=(45,180)
(θ, φ )=(0,0)
(θ, φ )=(45,225)
(θ, φ )=(45,270)
(θ, φ )=(45,45)
(θ, φ )=(45,0)
CHIMEI VISUAL
11TECHNOLOGY CORP.
Confidential
(θ, φ )=(45,315)
Performance of TN (with Multi-Direction Omniwide Film)
(θ, φ )=(45,135)
(θ, φ )=(45,90)
(θ, φ )=(45,45)
Multi-direction
Omniwide Film
(θ, φ )=(45,180)
(θ, φ )=(45,225)
(θ, φ )=(0,0)
(θ, φ )=(45,270)
(θ, φ )=(45,0)
CHIMEI VISUAL
12TECHNOLOGY CORP.
Confidential
(θ, φ )=(45,315)
Gamma Curve Improvement @ VA
VA LCD gamma曲线的改善
Symmetric 4-Domain VA
W/O Omniwide Film @(60, 0)
W/ Omniwide Film @(60, 0)
W/O Omniwide Film @(0, 0)
CHIMEI VISUAL
13TECHNOLOGY CORP.
Confidential
Color shift of VA(no LCS)
CHIMEI VISUAL
14TECHNOLOGY CORP.
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Reduced color shift of VA(no LCS)+Omniwide Film
Multi-direction
Omniwide Film
CHIMEI VISUAL
15TECHNOLOGY CORP.
Confidential
Color Shift Improvement @ VA View Angle
全视角膜对VA视角色差改善
VA(No LCS)
With Omniwide Film
38%~50%
Improvement
CHIMEI VISUAL
16TECHNOLOGY CORP.
Confidential
大纲
•
全视角光学薄膜的概念与原理
The concept of the Omniwide film
•
全视角光学薄膜的应用实例
The applications of the Omniwide films
•
全视角光学薄膜的推广与展望
The prospects of the Omniwide films
•
小结 / Summary
CHIMEI VISUAL
17TECHNOLOGY CORP.
Confidential
全视角光学薄膜的推广与展望...
•视角特性不佳液晶模态使用的可能
•提升液晶光转换效率的可能
•整合背光光型设计以提升整体效率的可能
•非液晶显示器视角色差改善的可能
CHIMEI VISUAL
18TECHNOLOGY CORP.
Confidential
大纲
•
全视角光学薄膜的概念与原理
The concept of the Omniwide film
•
全视角光学薄膜的应用实例
The applications of the Omniwide films
•
全视角光学薄膜的推广与展望
The prospects of the Omniwide films
•
小结 / Summary
CHIMEI VISUAL
19TECHNOLOGY CORP.
Confidential
小结
• 全视角光学膜可以有效改善LCD视角色差现象.
• 有别于传统相位补偿技术, 全视角光学薄膜可外贴
于LCD改善视角特性.
• 全视角光学膜的补偿原理具有广泛适用性, 使其亦
可用于非LCD, 例如OLED, 视角色差改善.
• 整合全视角光学膜光学补偿特性与 LCD整体设计,有
提升整体效能, 品质与成本竞争力的潜力.
CHIMEI VISUAL
20TECHNOLOGY CORP.
Confidential
Thank you for your attention!
感谢聆听指教!
CHIMEI VISUAL
21TECHNOLOGY CORP.
Confidential