Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Grayscale compensation method and system of OLED display panel

A display panel and grayscale technology, applied in static indicators, instruments, etc., can solve the problems of increasing process difficulty, high number of pixels per inch, affecting image display quality, etc., to reduce process difficulty, high brightness adjustment accuracy, improve The effect of uneven glow

Active Publication Date: 2017-05-31
WUHAN TIANMA MICRO ELECTRONICS CO LTD
View PDF5 Cites 81 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the existing display panels, due to the manufacturing process and the aging of the luminescent materials, it is easy to cause uneven light emission between the sub-pixels, that is, when the sub-pixels of the same color are input with the same image signal, the display brightness is different, which affects the image display quality.
[0004] In the prior art, the method of compensating the driving circuit of the thin-film transistor is usually used to improve the unevenness of light emission. However, this method often requires the design of a more complex pixel circuit, which not only increases the difficulty of the process, but also limits the area of ​​the light-emitting area, making it impossible to achieve more Highest number of pixels per inch (Pixels Per Inch, PPI)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Grayscale compensation method and system of OLED display panel
  • Grayscale compensation method and system of OLED display panel
  • Grayscale compensation method and system of OLED display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] 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.

[0023] figure 1 It is a flow chart of a gray scale compensation method for an OLED display panel in an embodiment of the present invention, refer to figure 1 , the method may specifically include the following steps:

[0024] Step 110: Obtain the actual display brightness of each sub-pixel of the OLED display panel under the actual input gray scale, and calculate the corresponding relationship between the actual input gray scale of each sub-pixel and the actual display brightness.

[0025] Specifically, the OLED...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An embodiment of the invention discloses a grayscale compensation method and system of an OLED display panel. The method includes: acquiring the actual display brightness of each subpixel of the OLED display panel under an actual input grayscale, and calculating the corresponding relationship between the actual input grayscale of each subpixel and the actual display brightness of each subpixel; determining the target display brightness of each subpixel under a preset input grayscale according to the target brightness of each subpixel under the 255th grayscale and the target gamma value of the OLED display panel; determining the target input grayscale of each subpixel when each subpixel displays the target display brightness according to the corresponding relationship between the actual input grayscale of each subpixel and the actual display brightness of each subpixel; determining a grayscale compensation value according to the target input grayscale of each subpixel and the preset input grayscale. By the grayscale compensation method, light-emitting unevenness among the subpixels of the OLED display panel is improved.

Description

technical field [0001] Embodiments of the present invention relate to display technology, and in particular to a gray scale compensation method and a gray scale compensation system for an OLED display panel. Background technique [0002] With the development of display technology, the display effect of display products has been continuously improved, so that the application of display products has become more and more extensive. [0003] However, in existing display panels, due to reasons such as manufacturing process and aging of luminescent materials, it is easy to cause uneven light emission between sub-pixels, that is, when sub-pixels of the same color are input with the same image signal, the display brightness is different, which affects the image display quality. [0004] In the prior art, the method of compensating the driving circuit of the thin-film transistor is usually used to improve the unevenness of light emission. However, this method often requires the desig...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0271
Inventor 边青吕博嘉孔祥梓
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products