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Display panel driving method, driving device, and display device

A technology of a display panel and a driving method, which is applied to static indicators, instruments, etc., and can solve problems such as affecting display effects and afterimages.

Active Publication Date: 2021-04-30
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the display panel performs screen switching, the high and low grayscale values ​​corresponding to each pixel in the display panel have a corresponding change, but affected by the hysteresis effect of the drive transistor, afterimages will appear, affecting the display effect

Method used

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  • Display panel driving method, driving device, and display device
  • Display panel driving method, driving device, and display device
  • Display panel driving method, driving device, and display device

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0028] An organic light emitting display (Organic Light Emitting Display, OLED) display panel includes pixels arranged in an array, and each pixel includes an organic light emitting element and a pixel circuit, and the pixel circuit may include a plurality of switching transistors and driving transistors. When the OLED display panel displays a picture, the data voltage corresponding to the corresponding grayscale value will be written into each pixel of the display panel, and the driving transistor in each pixel ci...

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Abstract

Embodiments of the present invention provide a display panel driving method, a driving device, and a display device. By taking the gray scale data in the current display screen, it is determined that the display brightness ratio of two adjacent pixels in the current display screen is greater than the preset ratio. The pixel is a boundary pixel, and the first driving mode is used to drive at least one boundary pixel in the display panel, so as to first write a data voltage corresponding to a grayscale value of 0 to the boundary pixel, and then write the display of the boundary pixel to the boundary pixel. The data voltage corresponding to the gray scale value makes the data voltage written in the boundary pixel switch between the data voltage corresponding to the 0 gray scale value and the data voltage corresponding to the displayed gray scale value. The implementation of the present invention can effectively improve the afterimage phenomenon caused by the hysteresis effect of the driving transistor when the display gray scale value is switched, and can improve the display effect of the display panel.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a driving method, a driving device and a display device of a display panel. Background technique [0002] With the development of display technology, Organic Light Emitting Display (OLED) display panels have broad application prospects in various display devices due to their excellent characteristics such as self-luminescence, high brightness, wide viewing angle, and fast response. [0003] The organic light-emitting element in the OLED display panel is a current-type driving element, and a corresponding pixel driving circuit needs to be provided to provide a driving current for the organic light-emitting element, so as to drive the organic light-emitting element to emit light. A pixel drive circuit usually used to drive an organic light-emitting element includes a drive transistor and a plurality of switching transistors. However, due to the process and device aging, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0257
Inventor 刘丽媛
Owner XIAMEN TIANMA MICRO ELECTRONICS
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