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Liquid crystal display device and liquid crystal display method

A technology of liquid crystal display device and driving mode, which is applied to static indicators, instruments, etc., can solve the problems of degradation of gamma characteristics of display brightness, etc., and achieve the effect of improving the reduction of display brightness and increasing the bias voltage

Inactive Publication Date: 2012-10-03
BOE TECH GRP CO LTD +1
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Problems solved by technology

[0006] In the pulse type LCD device, due to the continuous switching between the non-display time period and the display time period in the black insertion driving mode, the human eye can perceive the large change in the display brightness brought about by it, and the appearance of the gamma bias voltage , which degrades the gamma characteristics of the display brightness

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  • Liquid crystal display device and liquid crystal display method
  • Liquid crystal display device and liquid crystal display method
  • Liquid crystal display device and liquid crystal display method

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Embodiment Construction

[0024] The present invention provides a liquid crystal display device, comprising a control signal generator, a data driver, and a gamma voltage generator connected to the data driver;

[0025] The control signal generator is used to send a data control signal to the data driver, so that the data driver converts the RGB signal into an analog data voltage;

[0026] Wherein, the gamma voltage generator is used for sending the black insertion driving mode gamma voltage to the data driver in the black insertion driving mode, and correcting the converted analog data voltage.

[0027] In the normal driving mode, the gamma voltage is usually a group, now take a group of 14 as an example (there is also a group of 16 gamma voltages), the gamma voltage generator is composed of multiple series resistors to the reference voltage source V Connect resistors in series to divide the voltage to generate gamma voltages V1~V14.

[0028] A more optimal solution is to keep V1 and V14 in the norma...

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Abstract

The embodiment of the invention provides a liquid crystal display device and a liquid crystal display method. The liquid crystal display device comprises a control signal generator, a data driver and a gamma voltage generator connected with the data driver, wherein the control signal generator is used for sending a data control signal to the data driver, and the data driver converts a red, green and blue (RGB) signal into analog data voltage; and under a black frame insertion driving mode, the gamma voltage generator sends black frame insertion driving mode gamma voltage to the data driver and corrects the converted analog data voltage. Due to the liquid crystal display device and the liquid crystal display method, defects of the reduction of the display brightness, which is caused by black frame insertion, and deterioration of a gamma characteristic, which is caused by the reduction of the brightness, are overcome.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a liquid crystal display device and a liquid crystal display method. Background technique [0002] Conventional cathode ray tube (CRT) monitors rely on the cathode ray tube to emit electrons and strike phosphors on the screen to display images, but the principle of liquid crystal display is not the same. Generally, a liquid crystal display (LCD) device has an upper substrate and a lower substrate spaced apart from each other and facing each other, and a plurality of electrodes formed on the two substrates are facing each other. A liquid crystal panel containing liquid crystal molecules is sandwiched between an upper substrate and a lower substrate. The voltage is applied to the liquid crystal panel through the electrodes on the substrate, and then the arrangement of the liquid crystal molecules is changed according to the applied voltage to display images. The liquid cryst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 李恒滨
Owner BOE TECH GRP CO LTD
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