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Liquid crystal module and method for improving contrast ratio of liquid crystal module

A liquid crystal module, liquid crystal light valve technology, applied in nonlinear optics, instruments, optics, etc., can solve problems such as difficult to use, and achieve the effect of improving overall contrast.

Inactive Publication Date: 2020-07-24
TRULY SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

HDR display improves the overall contrast through local dimming of the display area, while the LCD module mainly realizes the local brightness adjustment function by adjusting the brightness of each LED light in its backlight, although the sample display effect is very good , but in actual projects due to issues such as mass production or structural compatibility, it is difficult to use in practical applications, especially for projects that require total thickness

Method used

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  • Liquid crystal module and method for improving contrast ratio of liquid crystal module
  • Liquid crystal module and method for improving contrast ratio of liquid crystal module
  • Liquid crystal module and method for improving contrast ratio of liquid crystal module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 with 2 As shown, a liquid crystal module includes a backlight 3 and a liquid crystal panel 1 arranged oppositely, and the light emitting surface of the backlight 3 faces the light incident surface of the liquid crystal panel 1; the backlight 3 and the liquid crystal panel 1 A liquid crystal light valve 2 is arranged between them, and the liquid crystal light valve 2 is used to control the amount of light irradiated by the backlight 3 on the liquid crystal panel 1; The light transmittance of each sub-region 21 on the liquid crystal light valve 2 is adjusted according to the display content of the liquid crystal panel 1 .

[0026] The liquid crystal module can realize local brightness adjustment by controlling the light transmittance of each sub-region 21 on the liquid crystal light valve 2, and in the region where the brightness required for display is low, control the sub-region 21 corresponding to the region to lower the transmittance. Light rate, in...

Embodiment 2

[0036] Such as image 3 As shown, a method for improving the contrast of a liquid crystal module is applied to the liquid crystal module described in Embodiment 1, including the following steps:

[0037] Step 1: Obtain the display content of the LCD module;

[0038] Step 2: Identify the light and dark distribution of the displayed content;

[0039] Step 3: Adjust the transmittance of each sub-region on the liquid crystal light valve according to the brightness and darkness distribution of the displayed content.

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Abstract

The invention discloses a liquid crystal module. The liquid crystal module comprises a backlight source and a liquid crystal panel which are oppositely arranged, a liquid crystal light valve is arranged between the backlight source and the liquid crystal panel, the liquid crystal light valve is provided with a plurality of sub-areas with variable electrotransmittance, and the light transmittance of each sub-area on the liquid crystal light valve is adjusted according to the display content of the liquid crystal panel. According to the liquid crystal module, local brightness adjustment can be achieved, and the thickness of the module is small. The invention further discloses a method for improving the contrast ratio of the liquid crystal module.

Description

technical field [0001] The invention relates to display technology, in particular to a liquid crystal module and a method for improving the contrast of the liquid crystal module. Background technique [0002] With users' pursuit of display effects, HDR display has become an essential function of high-end display devices. HDR display improves the overall contrast through local dimming of the display area, while the LCD module mainly realizes the local brightness adjustment function by adjusting the brightness of each LED light in its backlight, although the sample display effect is very good , but due to issues such as mass production or structural compatibility in actual projects, it is difficult to use it in practical applications, especially for projects that require total thickness. Contents of the invention [0003] In order to solve the shortcomings of the above-mentioned prior art, the present invention provides a liquid crystal module, which can realize local brigh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333G02F1/1347G02F1/1343
CPCG02F1/1333G02F1/1347G02F1/134309
Inventor 孙依红李孟祥周涛卢宏宇
Owner TRULY SEMICON
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