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Double-layer liquid crystal display device and control circuit and method thereof

A technology of liquid crystal display device and control circuit, which is applied in static indicators, nonlinear optics, instruments, etc., can solve the problems of rising cost and area of ​​liquid crystal display device, complicated control mechanism of liquid crystal display device, etc.

Inactive Publication Date: 2021-03-09
NOVATEK MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of an additional layer of liquid crystal cells, the control mechanism of the liquid crystal display device becomes more complicated, which increases the cost and area of ​​the liquid crystal display device

Method used

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  • Double-layer liquid crystal display device and control circuit and method thereof
  • Double-layer liquid crystal display device and control circuit and method thereof
  • Double-layer liquid crystal display device and control circuit and method thereof

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Embodiment Construction

[0041] Please refer to figure 1 . figure 1 It is a block diagram of a double-layer liquid crystal display device 1 in an embodiment of the present invention. The double-layer liquid crystal display device 1 includes: a liquid crystal display panel 100 , a backlight circuit 110 and a double-layer liquid crystal display device control circuit 120 .

[0042] Liquid crystal display panel 100 : includes a rear liquid crystal layer 102 and a front liquid crystal layer 104 . Wherein, both the rear liquid crystal layer 102 and the front liquid crystal layer 104 contain liquid crystal molecules. In one embodiment, the front liquid crystal layer 104 is configured to generate a display frame according to the display frame data DFD. The rear liquid crystal layer 102 is configured to reduce light leakage of the liquid crystal display panel 100 .

[0043] Note that, figure 1 The structures shown are only used to describe the concept of operation. In an actual implementation, the display...

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Abstract

A double-layer liquid crystal display device control circuit comprises a rear liquid crystal layer control circuit, a backlight control circuit and a front liquid crystal layer control circuit. The rear liquid crystal layer control circuit is configured to capture a plurality of brightness and color parameters of the display frame data so as to further generate a plurality of rear liquid crystal layer control parameters to control a rear liquid crystal layer of the liquid crystal display panel. The backlight control circuit is configured to execute statistical analysis of the display image data according to the brightness and color parameters so as to further generate a plurality of work cycle parameters to control the backlight circuit. The front liquid crystal layer control circuit is configured to perform brightness compensation on a front liquid crystal layer of the liquid crystal display panel according to the brightness and color parameters, the work cycle parameters and the display picture data. According to the double-layer liquid crystal display device and the control circuit and method thereof, the effect of saving cost and area can be achieved.

Description

technical field [0001] The present invention relates to a liquid crystal display technology, and in particular to a double-layer liquid crystal display device and its control circuit and control method. Background technique [0002] Liquid crystal display devices are widely used in various display applications. One of the main reasons for the popularity of liquid crystal display devices is due to their small size and low power consumption. In recent years, liquid crystal display devices with double layers have become more and more popular due to the advantage of the additional liquid crystal layer in reducing the amount of light leakage. However, due to the existence of an additional layer of liquid crystal cells, the control mechanism of the liquid crystal display device becomes more complicated, which increases the cost and area of ​​the liquid crystal display device. [0003] Therefore, how to design a new double-layer liquid crystal display device and its control circu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/34
CPCG09G3/36G09G3/3406G09G2320/0626G09G3/3607G09G2300/023G02F1/1347G02F1/133606
Inventor 从洪春梁建华张霄
Owner NOVATEK MICROELECTRONICS CORP