Liquid crystal panel driving device and its driving method

A liquid crystal panel and driving device technology, applied to instruments, static indicators, etc., can solve problems such as complex circuit structure of the liquid crystal panel driving device

Inactive Publication Date: 2007-11-14
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problem that the circuit structure of the liquid crystal panel driving device in the prior art is relatively complicated, it is necessary to provide a liquid crystal panel driving device with a relatively simple circuit structure

Method used

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  • Liquid crystal panel driving device and its driving method

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Embodiment Construction

[0014] FIG. 2 is a schematic structural diagram of a preferred embodiment of the liquid crystal panel driving device of the present invention. The liquid crystal panel driving device 20 includes an image input device 21 , an image output device 23 and a driving integrated circuit 25 . The image input device 21 collects image data from an external circuit and transmits the image data to the driving integrated circuit 25 . The driver integrated circuit 25 processes and transmits image data to the image output device 23 .

[0015] The driving integrated circuit 25 includes an image memory 251 , a comparator 253 , a counter 255 , a bidirectional switch 257 and an inverter 259 . The image memory 251 is a storage circuit, which stores and records the last frame of image data displayed by the liquid crystal panel. The comparator 253 is used to compare whether the image data input by the image input device 21 is the same as the image data stored in the image memory 251 . The counte...

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Abstract

The invention is a LCD panel driver, comprising a drive IC, where the drive IC comprises: a video memory to record the previous image frame displayed by LCD, a comparer, a reverser, a two-way switch and a counter, where the two-way switch comprises a first output end and a second output end, the first output end directly outputs image, and the second output end is connected to the reverser; the counter is used to determine whether the input image is a static image; the reverser reverses the current image frame and outputs an irregular image; the comparer compares the current image frame with the previous image frame and has two output channels, one directly outputting an image through the first output end and the other outputting an irregular image in turn through the counter, the second output end and the reverser. And its circuit structure is simpler and able to be used to eliminate the residual image existing on the LCD panel.

Description

technical field [0001] The invention relates to a liquid crystal panel driving device and a driving method thereof. Background technique [0002] In recent years, a liquid crystal display (Liquid Crystal Display, LCD) has gradually replaced a traditional cathode ray tube (Cathode Ray Tube, CRT) display. Although the liquid crystal display has the characteristics of high brightness and thinness, the afterimage phenomenon is still a technical bottleneck in the field of liquid crystal display. [0003] At present, in order to solve the image sticking problem of the liquid crystal display, the industry generally resolves the image sticking problem by inserting a picture between display pictures. FIG. 1 is a schematic structural diagram of a liquid crystal panel driving device in the prior art. The liquid crystal panel driving device 10 includes an image input device 11 , an image output device 13 , an interpolation device 15 and a drive integrated circuit (Drive Integrated Cir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/20G02F1/133
Inventor 吴绍强
Owner INNOCOM TECH SHENZHEN
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