Brightness compensation method and device of display panel and display module

A display panel and brightness compensation technology, which is applied to static indicators, instruments, etc., can solve the problem of inconsistent brightness of two screens

Pending Publication Date: 2020-03-24
BOE TECH GRP CO LTD +1
View PDF9 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above defects or deficiencies in the prior art, the present invention proposes a brightness compensation method for a display panel, a brightness compensation device, and a display module to solve the problem of the luminous brightness of two screens of a foldable flexible screen due to long-term work. inconsistencies

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
  • Brightness compensation method and device of display panel and display module
  • Brightness compensation method and device of display panel and display module
  • Brightness compensation method and device of display panel and display module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] 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 related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0043] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, words like "a" or "one" do not denote a limitation in quantity, but indicate that there is at least one. Words such as "connected" or "connected" are not limi...

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

The invention discloses a brightness compensation method and device of a display panel and a display module, the display panel comprises at least two display areas, and the first display area is connected with a feedback circuit. The brightness compensation method comprises the following steps: calculating a brightness attenuation value of a first display area according to equivalent working timeof the first display area; calculating the gray scale variation of the first display area according to the brightness attenuation value; and according to the gray scale variation, performing inverse proportion amplification on the input voltage of the first display area by using a feedback circuit to reach a preset voltage value. Brightness attenuation value according to equivalent working time ofthe first display area is calculated. The gray scale variation is calculated according to the brightness attenuation value, and the input voltage of the first display area is amplified in inverse proportion by using the feedback circuit, so that the voltage input quantity is increased, the purpose of increasing the light-emitting current of the first display area is achieved, and the brightness of the first display area is compensated and is consistent with the brightness of the second display area.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a brightness compensation method of a display panel, a brightness compensation device and a display module. Background technique [0002] With the increasing development of the organic light-emitting diode (Organic Light-Emitting Diode, OLED) display industry, more and more foldable flexible devices (such as mobile phones, tablet computers, etc.) will be widely used in daily life. At present, most foldable flexible screens use a hinge to divide a whole screen into two screens, forming a working form of inward folding and outward folding, so that the two screens can be displayed cooperatively or independently. Typically, a foldable flexible screen is folded so that one screen is active and the other is dormant. However, due to the characteristics of OLED devices and luminescent materials, the luminous efficiency will decrease with the increase of luminous time, which will lead t...

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
CPCG09G3/3208G09G2320/0233G09G2320/0626
Inventor 袁帅梁恒镇
Owner BOE TECH GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap