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Liquid crystal driving device

一种液晶驱动、液晶板的技术，应用在电视、仪器、彩色电视的零部件等方向，能够解决栅极插入黑数据等问题

Inactive Publication Date: 2009-10-28
HYDIS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, existing liquid crystal display devices have the disadvantage of not being able to drive all the gates to insert black data within a short period of 5.5 ms due to the use of the gate sequential scanning method as described in detail.

Method used

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Experimental program
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Embodiment Construction

[0024] The desired embodiment of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] figure 2 It is a block diagram showing a liquid crystal driving device of the present invention, and is composed of a liquid crystal panel 100 , a gate driving unit 200 and a current boosting unit 300 as shown in the figure.

[0026] The liquid crystal panel 100 includes a plurality of gate bus lines (not shown) arranged in one direction; a plurality of data bus lines (not shown) arranged vertically with the plurality of gate bus lines; and the thin film transistors (not shown) formed in the intersecting sections of the plurality of data buses.

[0027] The gate driving section 200 includes a plurality of gate driving ICs, and sequentially scans the plurality of gates in an active address interval in response to a second vertical start signal (STV2), a vertical clock signal (CPV) and an output enable signal (OES). pole bus, s...

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PUM

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Abstract

The present invention provides a liquid crystal drive device that inserts black data (Black Data) into a vertical blanking interval to realize the impulsive type of dynamic images. It includes: a liquid crystal panel including a plurality of gate bus lines arranged in one direction and a plurality of data bus lines arranged vertically to the plurality of gate bus lines; a gate driving section responding to a second vertical start signal and a vertical clock signal and outputting a permission signal, sequentially scanning the plurality of gate bus lines in an active address interval, and simultaneously scanning the plurality of gate bus lines in units of a predetermined number of lines in a vertical blanking interval; and a current raising section, An amount of current supplied to the scanned gate bus line during a vertical blanking interval is increased in response to a pulse width modulated signal.

Description

technical field [0001] The present invention relates to a liquid crystal driving device, in particular to an impulsive type liquid crystal driving device which inserts black data (BlackData) into a vertical blanking interval to realize dynamic images. Background technique [0002] The present invention is based on a system that realizes dynamic images using TFT-LCD (Thin Film Transistor Liquid Crystal Display) with high-speed response liquid crystals. The liquid crystal drive device of the present invention sets the refresh rate to 60 Hz for realizing dynamic images. , but not limited to this. [0003] Generally, the liquid crystal display device changes the arrangement of liquid crystal molecules through the action of the electric field, adjusts the light transmittance, and is used as an image display device from the TN-LCD type to the STN-LCD type, MIM-LCD type, MIM-LCD type, TFT -LCD type development, and its display performance has also been significantly improved. Suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G02F1/133G09G3/20H04N5/66
CPCG09G2310/061G09G2310/0251G09G3/3677G09G2310/0245G09G2320/0261G09G3/36
Inventor 朴正国金瑞润张大容
Owner HYDIS TECH CO LTD