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Liquid crystal display device and signal driving method thereof

A liquid crystal display device and a technology for scanning signals, applied to the signal drive of liquid crystal display devices, in the field of liquid crystal display devices, can solve problems such as poor display effects of liquid crystal displays, and achieve the effects of avoiding incorrect torsion angles and saving costs

Active Publication Date: 2011-11-16
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] An object of the present invention is to provide a liquid crystal display device to solve the problem of poor display effect of existing liquid crystal displays

Method used

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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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Embodiment Construction

[0025] 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.

[0026] In the figures, structurally similar units are denoted by the same reference numerals.

[0027] 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 before the correct da...

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Abstract

The invention discloses a liquid crystal display device. The liquid crystal display device is characterized in that, based on the matching of intraframe precharging and high-low level signals of array common lines, high-voltage charging is carried out on pixels before each correct data signal is written to the pixels, i.e., the overdrive is carried out before the correct data signals are written to the pixels. The invention also discloses a signal driving method of the liquid crystal display device. Compared with the prior art, the liquid crystal display device has the following advantages: firstly, a frame buffer is not used, so that the cost is saved; secondly, a complex timing function is not needed for overdrive; and thirdly, if the traditional mode that signals are compared accordingto a table for carrying out overdrive, the phenomenon that the liquid crystal is driven instantaneously to cause incorrect torsional angles can be greatly avoided.

Description

【Technical field】 [0001] The 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 a liquid crystal display panel. The traditional overdrive technology generally compares the front and back 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. For comparison with the current image, the above-mentioned pre-defined interpolation voltage value also needs to be stored in the memory, and also requires the cooperation of a timing controller (Time Control Register, TCON). [0004]...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG09G2310/0251G09G2320/0252G09G3/36G09G3/3648
Inventor 康志聪王晶
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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