Improvement of off‐axis color shift on hybrid viewing‐angle device using dual γ‐voltage method,Journal of the Society for Information Display

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Improvement of off‐axis color shift on hybrid viewing‐angle device using dual γ‐voltage method
Journal of the Society for Information Display ( IF 1.7 ) Pub Date : 2019-12-14 , DOI: 10.1002/jsid.850
Shih‐Bin Liu _{1,

2} , Yanbing Qiao ₂ , Zhongfei Zou ₂ , Chia‐Min Yu ₂ , Xiaojun Guo ₁ , Te‐Chen Chung ₂

Affiliation

We have mass production on one kind of liquid crystal display (LCD) device with hybrid viewing‐angle (HVA), which can be switched between the wide viewing‐angle (WVA) and narrow viewing‐angle (NVA) by one button. This device adopts the single cell design that with lower cost, and utilizes the optical properties of electrically tilted LC to achieve the function of NVA display. An issue has received less attention in the past and been indeed found in the production process. It is that the off‐axis color shift will appear in NVA mode. We put forward one method to improve this issue here, which is combined with the concepts of Gray Frame Insertion (GFI) and Impulse‐type driving. By switching the voltage between two different γ values, the color shift will be perfected on the produce.

中文翻译：

使用双γ电压方法改善混合视角设备上的轴外色移

我们已经在一种具有混合视角（HVA）的液晶显示器（LCD）上进行了批量生产，可以通过一个按钮在宽视角（WVA）和窄视角（NVA）之间进行切换。该器件采用成本较低的单电池设计，并利用电倾斜LC的光学特性来实现NVA显示的功能。过去很少关注某个问题，并且确实已经在生产过程中发现了该问题。轴外颜色偏移将出现在NVA模式下。我们在这里提出了一种解决此问题的方法，该方法结合了灰帧插入（GFI）和脉冲型驱动的概念。通过在两个不同的γ值之间切换电压，可以在产品上完美地实现色移。

更新日期：2019-12-14

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