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

Display panel and display device

A display panel and fingerprint recognition technology, applied in static indicators, character and pattern recognition, print image collection, etc., can solve problems such as the impact of fingerprint recognition, and achieve the effect of improving the effect

Active Publication Date: 2018-11-09
WUHAN TIANMA MICRO ELECTRONICS CO LTD
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, in the dimming mode, because the light-emitting device stops emitting light for a long time, it will cause adverse effects on fingerprint recognition.

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
  • Display panel and display device
  • Display panel and display device
  • Display panel and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless th...

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 embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and is compatible with the requirements exerted by display and fingerprint recognition functions on a light emitting device, thereby improving the fingerprint recognition effect. The display panel comprises a plurality of light emitting devices and a plurality of fingerprint recognition sensors; pixel drive circuits which are each corresponding to one light emitting device; and a light emitting drive circuit which is used for controlling the plurality of light emitting devices to emit light, and outputting first pulse signals to the corresponding pixel drive circuit in a fingerprint recognition time period, and outputting second pulse signals to the corresponding pixeldrive circuit in a non-fingerprint-recognition time period, wherein the period of the first pulse signals is different from the period of the second pulse signals.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] In an organic light-emitting (Organic Light-Emitting Diode, OLED) display panel, in order to improve the life of the light-emitting device, a dimming mode (dimming mode) is used to control the light-emitting state of the light-emitting device. In the dimming mode, in each frame time, The light emitting device will periodically stop emitting light. However, in the organic light-emitting display panel with fingerprint recognition function, fingerprint recognition is through the light emitted by the light-emitting device reflected on the finger and then received by the fingerprint recognition sensor, so as to realize the fingerprint recognition function, that is, the light-emitting device is used to realize the display function and Multiplexed as a light source for fingerprint recognition. In this way, in...

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): G06K9/00G09G3/3208
CPCG09G3/3208G06V40/1318G09G3/20G09G3/3266G09G3/3677G09G2310/0267G09G2310/08
Inventor 高娅娜周星耀李元
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com