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Driving element having time schedule controller and driving method thereof

A technology of timing controller and drive unit, applied in instruments, static indicators, etc., can solve the problems of reducing the quality of picture display and the inability of pixels to achieve brightness.

Inactive Publication Date: 2012-03-21
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result of the increase in the reaction time of liquid crystal molecules, the pixels cannot achieve the desired brightness, and the display quality of the picture will be reduced.

Method used

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  • Driving element having time schedule controller and driving method thereof
  • Driving element having time schedule controller and driving method thereof
  • Driving element having time schedule controller and driving method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0058] refer to Figure 2A , which shows a circuit block diagram of a liquid crystal display according to an embodiment of the present invention. The liquid crystal display 200 includes: a driving unit 202 , a source driver 204 , a gate driver 206 and a liquid crystal display panel 208 . The driving unit 202 is coupled to the source driver 204 to output the frame data SO(n) to the source driver 204 . The source driver 204 outputs data signals SD1 - SDn according to the frame data SO(n) to drive the LCD panel 208 . The gate driver 206 is also coupled to the driving unit 202 , and the gate driver 206 scans the liquid crystal display panel 208 by outputting scan signals Sc1˜Scm according to a clock signal (not shown) of the driving unit 202 . n and m are integers greater than 1.

[0059] refer to Figure 2B , which shows Figure 2A The detailed circuit diagram of the driving unit 202. The driving unit 202 includes: a buffer 2022 , a timing controller 2021 and a memory 2023 ...

no. 2 example

[0067] refer to Figure 4A and Figure 4B , Figure 4A shows a circuit diagram of a liquid crystal display according to a second embodiment of the present invention, Figure 4B show Figure 4A A detailed circuit diagram of the drive unit 402. The difference between the second embodiment and the first embodiment is that the drive unit 402 of the second embodiment only includes one overdrive data generation unit 40211 .

[0068] refer to Figure 5 , which shows Figure 4AA flow chart of the driving method of the driving unit 402. First, in step 502 , the previous original frame data F(n−1) and the current original frame data F(n) are provided to the buffer 4022 . Next, in step 504, the first previously adjusted frame data F1(n-1) and the second previously adjusted frame data F2 are respectively output according to the previous original frame data F(n-1) and the current original frame data F(n). (n−1) and the first current adjusted frame data F1(n) and the second current ...

no. 3 example

[0072] refer to Figure 6A , 6B ,, 6C and Figure 6D ,in Figure 6A shows a circuit diagram of a liquid crystal display according to a third embodiment of the present invention, Figure 6B show Figure 6A The detailed circuit diagram of the drive unit 602, Figure 6C and Figure 6D Respectively show when the received previous and current original frame data F(n) and F(n-1) fall within the preset range and fall outside the preset range, Figure 6A A schematic diagram of the output frame data SO(n) of the driving unit 602. The driving unit 602 includes a buffer 6022 , a timing controller 6021 and a memory 6023 . The difference between this embodiment and the second embodiment is that the timing controller 6021 in the drive unit 602 disclosed in this embodiment can judge the previous original frame data and the current original frame data F(n-1) and F(n) Whether the relationship of is in a preset range, the preset range is preferably Figure 1B Regions 102 and 104 are sh...

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Abstract

Disclosed is a drive method which is capable of reducing liquid crystal response time. The drive method, applicable on computer display units, includes the following steps: firstly, the previous original frame data and the current original frame data are supplied to a buffer; secondly, first and second previous adjusted frame data and first and second current adjusted frame data are outputted according to the previous original frame data and the current original frame data; thirdly, first current overdrive frame data are outputted to a source driver according to the first previous adjusted frame data and the first current adjusted frame data and with the reference to a table; after a fixed time, the first current overdrive frame data are again outputted to the source driver.

Description

technical field [0001] The invention relates to a timing controller, and in particular to a timing controller for improving liquid crystal response time. Background technique [0002] In a monitor with a frame update frequency of 60Hz, each frame is displayed for approximately 16.67ms. In traditional liquid crystal displays, in order to speed up the response time of liquid crystal molecules, liquid crystal displays using 120Hz as the frame update frequency have come out. By increasing the update frequency of the frame, the charging frequency of the pixel electrode of each pixel unit in the liquid crystal display can be increased, so as to speed up the response time of the liquid crystal molecules. In order to further speed up the response speed of the liquid crystal, the overdrive driving method has been applied to the above-mentioned liquid crystal display with 120 Hz as the frame update frequency. [0003] refer to Figure 1A , which shows a schematic diagram of correlat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G3/34
Inventor 许英豪林弘裕陈宥烨
Owner INNOLUX CORP
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