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Liquid crystal display adjustment device, liquid crystal display device and image signal processing method

A technology for adjusting devices and liquid crystal displays, applied to static indicators, instruments, etc., can solve the problems of less than 0 transmittance, lower display contrast, lower backlight utilization, etc.

Inactive Publication Date: 2009-05-20
孙金龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the existing liquid crystal display device, the brightness of the backlight is fixed and cannot be adjusted according to the change of the liquid crystal display content
And even when the gray level of liquid crystal is 0, its transmittance cannot reach 0.
Therefore, some light will always pass through the liquid crystal (light leakage), resulting in the "dark" part of the liquid crystal display screen not being "dark" enough, which reduces the display contrast; at the same time, most of the light from the backlight is blocked by the liquid crystal, reducing the use of the backlight rate, resulting in additional energy consumption

Method used

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  • Liquid crystal display adjustment device, liquid crystal display device and image signal processing method
  • Liquid crystal display adjustment device, liquid crystal display device and image signal processing method
  • Liquid crystal display adjustment device, liquid crystal display device and image signal processing method

Examples

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Embodiment 1

[0028] Such as figure 1 As shown, this embodiment provides a liquid crystal display adjustment device, including an image signal receiving module 101, an image buffer module 102, a liquid crystal gray scale adjustment module 103, a liquid crystal driving module 104, an image analysis module 106, a backlight brightness adjustment module 107, The backlight drive module 108, that is, on the basis of the following liquid crystal display device, the adjustment device does not include the LED backlight module 109 and the liquid crystal panel 105. This liquid crystal display adjustment device can be applied to all display devices using liquid crystal panels. The signal is adjusted to meet the needs of power saving and contrast.

[0029]Specifically, the liquid crystal display adjustment device includes an image signal receiving module 101, an image buffer module 102, a liquid crystal gray scale adjustment module 103, a liquid crystal driving module 104, an image analysis module 106, ...

Embodiment 2

[0031] On the basis of Example 1, such as figure 2 As shown, the image analysis module 106 adopts the liquid crystal grayscale adjustment coefficient generation unit 1061 and the backlight brightness adjustment coefficient generation unit 1062 to generate the liquid crystal grayscale adjustment coefficient and the backlight brightness adjustment coefficient respectively, and the liquid crystal grayscale adjustment coefficient generation unit 1061 receives the digital image signal , perform analysis and processing, generate liquid crystal grayscale adjustment coefficients, and output them to the liquid crystal grayscale adjustment module 103, and at the same time, the backlight brightness adjustment coefficient generation unit 1062 uses the data of the liquid crystal grayscale adjustment coefficient generation unit 1061 to generate backlight brightness adjustment coefficients, and outputs them to the backlight brightness Adjustment module.

Embodiment 3

[0033] Using the adjustment device of any of the above embodiments, this embodiment provides a liquid crystal display device, such as figure 1 As shown, it includes: an image signal receiving module 101, an image cache module 102, a liquid crystal grayscale adjustment module 103, a liquid crystal driving module 104, a liquid crystal panel 105, an image analysis module 106, a backlight brightness adjustment module 107, a backlight driving module 108, and an LED backlight Module 109, image signal receiving module 101 is respectively connected with image buffer module 102, image analysis module 106, is used to provide digital image signal to image buffer module 102 and image analysis module 106; Image buffer module 102 and liquid crystal grayscale adjustment module 103 connected to each other, for receiving and buffering digital image signals for use by the liquid crystal grayscale adjustment module 103 to adjust the liquid crystal grayscale; the image analysis module 106 is respe...

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Abstract

The invention discloses a liquid crystal display adjusting device, which comprises a liquid crystal driving module, a backlight driving module, an image signal receiving module, an image caching module, an image analyzing module, a liquid crystal gray scale adjusting module, and a backlight brightness adjusting module. The invention also discloses a method for processing digital image signals forthe liquid crystal display adjusting device, and a liquid crystal display.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a liquid crystal display adjustment device using LED backlight, a liquid crystal display device, and a processing method for digital image signals. Background technique [0002] In the display, the cathode ray tube (CRT) once occupied the entire market, but due to its weight and scale limitations, it cannot meet the trend of miniaturization and light weight of electronic products. Currently, a small and compact display device is needed to replace the CRT. monitor. Later, with the research on display technology, liquid crystal display (LCD) can realize the display function of replacing CRT with its advantages of small size, light weight and low power consumption. With the in-depth research on LCD, it has been widely used in flat panel displays and personal computers and other display terminal equipment, and the market demand for LCD is increasing year by year. [0003] Sinc...

Claims

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Application Information

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IPC IPC(8): G09G3/36
Inventor 杨雷邵寅亮李鹏
Owner 孙金龙
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