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Display panel driving method and device

A driving method and display panel technology, which is applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of dark brightness of display panels, and achieve the effect of improving the dim brightness

Active Publication Date: 2017-05-31
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a driving method and a driving device of a display panel, which can improve the problem that the brightness of a display panel including RGBW sub-pixel units is dark when displaying a solid-color picture

Method used

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  • Display panel driving method and device

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] figure 1 It is a flow chart of the driving method of the display panel according to the embodiment of the present invention. Such as figure 1 As shown, the method includes the steps of:

[0025] Step S101: Divide the saturation interval of the original image frame to be displayed on the display panel into a plurality of sub-saturation intervals.

[0026] In step S101 , taking the saturation interval of the original image frame as 0-1 as an example, t...

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PUM

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Abstract

The invention discloses a display panel driving method and device. The driving method comprises the steps of dividing a saturability interval of an original image frame to be displayed by a display panel into a plurality of sub-saturability intervals; counting the number of pixels, falling into the sub-saturability intervals, in the original image frame according to saturability corresponding to each pixel point; acquiring an original gain coefficient according to the counted number of pixels and gain coefficients corresponding to the sub-saturability intervals; regulating a first backlight control coefficient generated by a PWM unit according to the original gain coefficient; and conducting weighting on the regulated first backlight control coefficient and a second backlight control coefficient generated by a CABC unit, and then outputting the result to a backlight module. In this way, backlight brightness can be intelligently regulated according to the saturability of the original image frame, so as to solve the problem of dark pure color of the RGBW display panel.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a driving method and a driving device of a display panel. Background technique [0002] Currently, an RGB display panel includes a pixel unit array, and each pixel unit in the pixel unit array may include three sub-pixel units of R (Red, red), G (Green, green), and B (Blue, blue). With the development of technology, each pixel unit in the pixel unit array may include W (White, white) sub-pixel unit in addition to R, G, and B sub-pixel units, thereby forming an RGBW display panel. By adding W sub-pixels, the pixel unit can have high transmittance, thereby saving the power consumption of the display panel. However, since the RGBW display panel introduces W pixel units, the size of the four sub-pixel units R, G, B, and W is equal to the size of the six sub-pixel units R, G, and B in the original RGB display panel, that is, the unit area In the RGBW display panel, the areas of...

Claims

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Application Information

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IPC IPC(8): G09G3/36G09G3/34
CPCG09G3/3406G09G3/3607G09G2320/0626G09G3/3611G09G2300/0452G09G2320/064G09G2360/16G09G5/02G09G2320/0666G09G5/10
Inventor 郭星灵黄俊宏谭小平秦杰辉
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD