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Charging method and device of display panel

A display panel and charging method technology, applied to static indicators, instruments, etc., can solve the problems of insufficient effective charging time, color shift of the display panel, etc., and achieve the effect of improving the effective charging time and avoiding color shift

Active Publication Date: 2020-07-03
TCL 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 embodiment of the present application provides a charging method and device for a display panel to solve the color shift problem of the display panel caused by insufficient effective charging time of row pixel units

Method used

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  • Charging method and device of display panel
  • Charging method and device of display panel
  • Charging method and device of display panel

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Embodiment Construction

[0041] Specific structural and functional details disclosed herein are representative only and are for purposes of describing example embodiments of the present application. This application may, however, be embodied in many alternative forms and should not be construed as limited to only the embodiments set forth herein.

[0042] In the description of this application, it should be understood that the terms "central", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the application. In addition...

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PUM

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Abstract

The invention discloses a charging method and device for a display panel. The display panel comprises a plurality of rows of pixel units. The method comprises the following steps: acquiring the gray scale of each row of pixel units in the plurality of rows of pixel units; when each row of pixel units is scanned in sequence, whether the gray scale of the row of pixel units is different from that ofthe previous row of pixel units or not is detected; and if so, adjusting the charging voltage of the pixel unit in the row to a target charging voltage, and charging the pixel unit in the row by adopting the target charging voltage. Effective charging duration of the row pixel units can be improved, and color cast of the display panel is avoided.

Description

technical field [0001] The present application relates to the technical field of display panels, in particular to a method and device for charging a display panel. Background technique [0002] As the resolution of the display panel becomes higher and higher, its refresh rate becomes higher and higher, and the driving time of each row of pixel units becomes shorter and shorter. For example, for a 4K2K display panel with a refresh rate of 60Hz, the charging time of each row of pixel units is 7.5us, and the effective charging time is about 3.8us; for a 4K2K display panel with a refresh rate of 1200Hz, the charging time of each row of pixel units is 3.75us, and the effective charging time is about 1.8us. Therefore, when there is a jump in the gray scale of a row of pixel units, the effective charging time of the row of pixel units may be insufficient, resulting in color shift of the display panel. Contents of the invention [0003] Embodiments of the present application pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/2007
Inventor 李文芳
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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