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Overdriven value generating method

A generation method and overdrive technology, applied in the field of overdrive technology, can solve problems such as quantity reduction, inaccurate overdrive value, and smaller size of the comparison table, and achieve the effect of improving accuracy

Active Publication Date: 2012-07-11
INNOLUX CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to hardware cost considerations today, the size of the comparison table is reduced, resulting in a reduction in the number of previous gray values ​​and gray values ​​recorded
Moreover, the previous grayscale value and grayscale value not recorded in the comparison table can only refer to the closer previous grayscale value and grayscale value, so that the output overdrive value will become inaccurate

Method used

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Embodiment Construction

[0045] figure 1 It is a system block diagram of a liquid crystal display device according to an embodiment of the present invention. Please refer to figure 1 , the liquid crystal display device 100 includes a liquid crystal display panel (LCD panel) 110, a light emitting diode backlight module (LED backlight module) 120, a timing controller (timing controller, T-con) 130, a gate driver (gate driver) 140, and a source pole driver (source driver) 150 . The timing controller 130 receives the video signal SV to control the gate driver 140 and the source driver 150 according to the frame data transmitted by the video signal SV, and the timing controller 130 outputs the current gray value SG to the source driver 150 . The gate driver 140 is controlled by the timing controller 130 to turn on each row of pixels (such as the pixel row L) in the liquid crystal display panel 110 one by one.

[0046] The source driver 150 is also controlled by the timing controller 130 to provide the c...

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Abstract

The invention discloses an overdriven value generating method which is suitable for a liquid crystal display device, and promotes the accuracy of an overdriven value without changing the size of a league table. The overdriven value generating method comprises the following steps of: receiving a current grey scale value and a previous grey scale value, wherein the current grey scale value and the previous grey scale value are corresponding to one pixel of the liquid crystal display device together; according to the league table, obtaining a first gray scale reference value and a second gray scale reference value which are close to the current grey scale value, wherein the first gray scale reference value and the second gray scale reference value and four first overdriven values are close to the previous grey scale value; and according to the current grey scale value, the previous grey scale value, the first gray scale reference value, the second gray scale reference value, a first previous gray scale reference value, a second gray scale reference value and the first overdriven values, obtaining a target overdriven value which is corresponding to the current grey scale value and the previous grey scale value through calculation of a four-point interpolation method or a parallelogram interpolation method.

Description

technical field [0001] The present invention relates to an overdrive technology, and in particular to a method for generating an overdrive value. Background technique [0002] With the advancement of modern video technology, liquid crystal display devices have been widely used in display screens of consumer electronic products. However, since the liquid crystal panel of the liquid crystal display device does not have the function of emitting light, it is necessary to configure a backlight module under the liquid crystal panel to provide the light source required by the liquid crystal panel, so that the liquid crystal panel can achieve the display effect. As far as the current liquid crystal display device is concerned, most of the hold type backlight modules are used to provide the required light source, so as to provide the light source with a fixed luminous amplitude. Therefore, when the liquid crystal display device displays a static picture, the problem of picture flick...

Claims

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Application Information

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IPC IPC(8): G09G3/36
Inventor 杨富吉彭国玮刘庆鸿丁士翔
Owner INNOLUX CORP
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