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武汉京东方光电科技有限公司, 湖北 武汉 430040
陈创,男,硕士,高级工程师,2018年于湖南大学获得硕士学位,主要从事液晶显示器的研发工作。E-mail:chenchuang1@boe.com.cn
石侠,男,硕士,资深工程师,2016年于郑州大学获得硕士学位,主要从事液晶显示器的研发工作。E-mail:shixia@ boe.com.cn
收稿:2026-02-25,
修回:2026-03-15,
纸质出版:2026-04-05
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陈创, 陈东川, 戴珂, 等. 抑制LCD离轴漏光的光学补偿膜设计[J]. 液晶与显示, 2026,41(4):498-508.
CHEN Chuang, CHEN Dongchuan, DAI Ke, et al. Design of optical compensation films for suppressing off-axis light leakage in LCDs[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(4): 498-508.
陈创, 陈东川, 戴珂, 等. 抑制LCD离轴漏光的光学补偿膜设计[J]. 液晶与显示, 2026,41(4):498-508. DOI: 10.37188/CJLCD.2026-0042. CSTR: 32172.14.CJLCD.2026-0042.
CHEN Chuang, CHEN Dongchuan, DAI Ke, et al. Design of optical compensation films for suppressing off-axis light leakage in LCDs[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(4): 498-508. DOI: 10.37188/CJLCD.2026-0042. CSTR: 32172.14.CJLCD.2026-0042.
为改善高级超维场转换液晶显示器(ADS LCD)在斜视角(方位角
ψ
=45°,极角
θ
=60°)下的漏光问题,本文设计了一种光学补偿膜并将其集成在偏光片中,并对使用该光学补偿膜的ADS LCD的斜视角漏光程度、色偏等方面进行了研究。首先,根据ADS LCD斜视角漏光的原理(离轴漏光),利用TechWiz软件,模拟出能有效减轻斜视角漏光的液晶和补偿膜的搭配方案。接着,制作不同补偿值的偏光片并将其贴附在液晶显示屏上。然后,通过光学设备测试斜视角漏光亮度和色偏情况,确定最终光学补偿膜方案。实验结果表明,有两种补偿膜方案可使斜视角漏光亮度下降95%以上:组配①:负性液晶(90°)+ (+B)+(-C)补偿膜(+B补偿膜:
R
0
=
a
,
R
th
=-
a
;-C补偿膜:
R
0
=0,
R
th
=
a
);组配②:负性液晶(90°)+ (+C)+(+A)补偿膜(+C补偿膜:
R
0
=0,
R
th
=-
b
;+A补偿膜:
R
0
=
c
,
R
th
=
d
)。使用该光学补偿膜的偏光片可改善ADS LCD斜视角画面泛白的现象。
To address the issue of oblique-angle light leakage (azimuth angle
ψ
=45°, polar angle
θ
=60°) for ADS LCDs, an optical compensation film was designed and integrated into the polarizer. The study further investigated the oblique-angle light leakage and color shift of LCDs incorporating this optical compensation fil
m. First, based on the mechanism of oblique-angle light leakage (off-axis light leakage) in ADS LCDs, TechWiz software was used to simulate a combination scheme of liquid crystal and compensation film that can effectively reduce oblique angle light leakage. Next, polarizers with different compensation values were produced and attached to the LCD screen. Finally, optical testing equipment was used to measure light leakage and color shift. Based on the combined results, the optimal optical compensation film solution was determined. The experimental results indicate that both compensation film schemes can reduce the brightness of oblique angle light leakage by more than 95%:Configuration ①: Negative liquid crystal (90°) + (+B) +(-C) compensation films (+B film:
R
₀=
a
,
R
th
=-
a
; -C film:
R
₀=0,
R
th
=
a
). Configuration ②: Negative liquid crystal (90°) + (+C) + (+A) compensation films (+C film:
R
₀=0,
R
th
=-
b
; +A film:
R
₀=
c
,
R
th
=
d
). The polarizer integrated with this optical compensation film can improve the phenomenon of whitening in ADS LCD at oblique viewing angle.
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