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Compensation method and device of display panel, and display device

A technology of display panels, compensation methods, applied in the direction of static indicators, instruments, etc.

Active Publication Date: 2020-10-09
HEFEI VISIONOX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a compensation method, device and display device for a display panel, so as to improve the afterimage problem of the display panel

Method used

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  • Compensation method and device of display panel, and display device
  • Compensation method and device of display panel, and display device
  • Compensation method and device of display panel, and display device

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Embodiment Construction

[0036] 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.

[0037] As mentioned in the background technology, the existing display panels are prone to image afterimages. The inventor found through research that the reason for this problem is that as the lighting time of OLED display panels increases, brightness deviations will occur due to the cumulative effect of current, resulting in different There are display differences between sub-pixel units, and when the display differences are too large, afterimages are prone to occur.

[0038] Based on the above problems, this em...

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Abstract

An embodiment of the invention discloses a compensation method and a compensation device of a display panel, and a display device. The compensation method of the display panel comprises the steps of:acquiring accumulated display time of each sub-pixel unit of the display panel and a display gray scale corresponding to each display time period in the accumulated display time; calculating a normalized display gray scale of each sub-pixel unit according to the display gray scale of each display time period and the accumulated display time; determining a current brightness deviation of each sub-pixel unit according to the normalized display gray scale, the accumulated display time and a pre-stored corresponding relationship among the gray scales, the brightness and the time; and compensatinga display driving signal of each sub-pixel unit according to the current brightness deviation. According to the compensation method of the display panel of the embodiment of the invention, the residual image problem of the display panel is improved.

Description

technical field [0001] Embodiments of the present invention relate to display technologies, and in particular to a compensation method, device and display device for a display panel. Background technique [0002] Organic Light Emitting Diode (OLED) display panel is a kind of self-luminous display panel. Due to the advantages of thinness, high brightness, wide viewing angle, high response speed and wide operating temperature range, OLED display panel is more and more popular. It is applied in various high-performance display fields. [0003] The problem of afterimages that are prone to appear during the display process of OLED display panels is a long-term research and development topic in the display panel industry. Contents of the invention [0004] The invention provides a compensation method, device and display device of a display panel to improve the afterimage problem of the display panel. [0005] In a first aspect, an embodiment of the present invention provides a...

Claims

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Application Information

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IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0233G09G2320/0257
Inventor 赵东方
Owner HEFEI VISIONOX TECH CO LTD
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