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Liquid crystal display device and signal driving method thereof

A liquid crystal display device and signal technology, applied in 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: 2013-06-05
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

[0022] 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.

[0023] In the figures, structurally similar units are denoted by the same reference numerals.

[0024] 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 (OverDriving) before ...

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Abstract

A liquid crystal display device. By collaboration of an intra-frame precharging and an array common line high-low voltage-level signal, the liquid crystal display device precharges a pixel with a high voltage before each correct data signal is written into the pixel, equivalent to over driving before the correct data signal is written into the pixel. A signal driving method for the liquid crystal display. The present invention, on the one hand, obviates a need for a frame buffer, thus conserving costs, while on the other hand, obviates a need for a complex timer function for over driving, and on yet another hand, when using conventional table-lookup comparison of prior and post signals for over driving, prevents to a great extent the occurrence of incorrect torsion angle due to liquid crystals being driven instantaneously.

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 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 general way t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3648G09G2310/0251G09G2320/0252
Inventor 康志聪
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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