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Driving method and driving device of a display panel

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

Active Publication Date: 2018-04-10
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Description
  • Claims
  • Application Information

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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

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  • Driving method and driving device of a display panel
  • Driving method and driving device of a display panel

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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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Abstract

The invention discloses a driving method and a driving device of a display panel. The driving method includes: dividing the saturation interval of the original image frame to be displayed on the display panel into a plurality of sub-saturation intervals; counting the number of pixels in the original image frame falling into each sub-saturation interval according to the saturation corresponding to each pixel point ; Obtain the original gain coefficient according to the statistical number of pixels and the corresponding gain coefficient of each sub-saturation interval; adjust the first backlight control coefficient generated by the PWM unit according to the original gain coefficient; combine the adjusted first backlight control coefficient with the one generated by the CABC unit The second backlight control coefficient is weighted and then output to the backlight module. Through the above method, the present invention can intelligently adjust the brightness of the backlight according to the saturation of the original image frame, thereby improving the problem that the pure color of the RGBW display panel is dark.

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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Patent Type & Authority Patents(China)
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