Liquid-crystal display device and signal driving method thereof

A liquid crystal display device and a scanning signal technology, applied to the signal drive of the liquid crystal display device, in the field of liquid crystal display devices, can solve problems such as incorrect torsion angle, reduced display effect, rhinoceros horn phenomenon, etc., so as to save costs and avoid incorrect torsion angle correct effect

Active Publication Date: 2013-04-24
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

[0005] From the point of view of PVA, if only one set of internal difference look-up table is done, the distance between the strip electrodes in the pixel electrode is designed to be relatively large in order to achieve high transmittance, which will cause the liquid crystal to be driven instantaneously and cause the twist angle to be incorrect , so when switching from low grayscale to high grayscale, the so-called rhinoceros horn phenomenon often occurs, which reduces the display effect

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  • Liquid-crystal display device and signal driving method thereof
  • Liquid-crystal display device and signal driving method thereof
  • Liquid-crystal display device and signal driving method thereof

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[0028] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0029] In the figures, structurally similar units are denoted by the same reference numerals.

[0030] The liquid crystal display device of the present invention cooperates with the high and low level signals of the pre-charge (Pre-charge) in the frame (Frame) and the array common line (Array com), and before each correct data signal is written into the pixel, the pixel is first Charging a high voltage is equivalent to overdriving (Over Driving) before...

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Abstract

A liquid-crystal display device comprises a scan driving module (204), for generating a scanning signal and sending the scanning signal to a scan line (203); a data driving module (201), for generating a data signal and sending the data signal to a data line (207); a thin film transistor array panel (102), on which pixels (206) are arranged, the pixels comprising a subpixel R (311), a subpixel G (312) and a subpixel B (313); the scan line (203), coupled with at least one subpixel of the pixels, the scanning signal sequentially scanning the subpixels in the same row according to columns; and the data line (207), coupled with at least one subpixel of the pixels, and used for inputting a high voltage to the subpixel for precharging before inputting the data signal into the subpixel, and then inputting a signal for displaying images into the subpixel after the precharging. Also disclosed is a signal driving method of the liquid-crystal display device.

Description

【Technical field】 [0001] The present invention relates to a display device, in particular to a liquid crystal display device; [0002] The present invention also relates to a signal driving method, in particular to a signal driving method of a liquid crystal display device. 【Background technique】 [0003] Overdriving (Over Driving) technology is a technology used to improve the display effect of the LCD panel. The traditional overdrive technology generally compares the front and rear image signals with a look-up table to find a predefined inter-difference voltage value to improve the response speed. This method requires the use of a frame buffer (Frame Buffer) to store the previous image, and then compares it with the previous image. Compared with the current image, the above-mentioned pre-defined interpolation voltage value also needs to be stored in the memory, and the cooperation of the timing controller (Time Control Register, TCON) is also required. [0004] The gener...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3614G09G3/2074G09G2300/0426G09G2320/0252
Inventor 康志聪
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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