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Gray scale compensation method, device and system of display panel

A technology of display panel and compensation method, which is applied to static indicators, instruments, etc., can solve the problems of large wire resistance, uneven panel display brightness, affecting the display quality of the panel, etc., and achieves the effect of uniform display brightness and improved display quality.

Active Publication Date: 2019-12-20
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as the panel wire length becomes longer and longer, the wire resistance also increases
Inevitably, the power supply voltage will produce a voltage drop (IR Drop) on the wire, and the resistance value of the wire makes each pixel circuit obtain a different power supply voltage, so that under the same data signal voltage input, different pixels have different Current and brightness output, resulting in uneven display brightness of the entire panel, affecting the display quality of the panel

Method used

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  • Gray scale compensation method, device and system of display panel
  • Gray scale compensation method, device and system of display panel
  • Gray scale compensation method, device and system of display panel

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Embodiment Construction

[0047] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present application, and cannot be construed as limiting the present invention.

[0048] Those skilled in the art can understand that, unless specifically stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of this application refers to the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, component...

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Abstract

The invention provides a gray scale compensation method, device and system for a display panel. The method comprises: acquiring actual brightness values in brightness parameters of all display blocksin the display panel; determining the compensated gray-scale value of each display block according to the corresponding relationship between the compensated gray-scale value and the brightness parameter and the actual brightness value of each display block; and determining a display gray-scale value corresponding to each display block according to the compensated gray-scale value so as to displaythe display gray-scale value. According to the gray scale compensation method of a display panel, the gray scale of each display block is compensated according to the actual brightness value of each display block on the display panel, the corresponding relationship between the compensated gray scale value and the brightness parameter and the actual brightness value of each display block, and the brightness output of different pixels is reasonably adjusted, so that the display brightness of the whole panel tends to be uniform under the same data signal voltage input, and the actual display quality of the panel is improved.

Description

Technical field [0001] This application relates to the field of display technology. Specifically, the application relates to a grayscale compensation method, device, and system for a display panel. Background technique [0002] OLED (Organic Light Emitting Display, organic light-emitting diode) display devices have the advantages of self-luminescence, fast response speed, high contrast, high color gamut, and wide viewing angle, and can also be bent. Compared with LCD (Liquid Crystal Display, liquid crystal display) , OLED does not require a backlight, and can be ultra-thin. [0003] With the progress of the times and technology, large-size, high-resolution AMOLED (Active-Matrix Organic Light-Emitting Diode, Active-Matrix Organic Light-Emitting Diode) display devices have gradually developed. Correspondingly, large-size AMOLED display devices have also developed A larger size panel and a larger number of pixels are required. However, as the length of the panel wire becomes longer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0233G09G2320/0271
Inventor 苗馨友赖政德
Owner BOE TECH GRP CO LTD