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Fingerprint driving circuit and display panel

A drive circuit and fingerprint technology, which is applied to static indicators, acquisition/organization of fingerprints/palmprints, print image collection, etc., can solve the problems of increased non-display area width and unfavorable screen-to-body ratio, so as to reduce the width and improve the screen size. The effect of proportion

Active Publication Date: 2020-09-22
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, two fingerprint GOA circuits are required for one fingerprint recognition unit, resulting in an increase in the width of the non-display area, which is not conducive to improving the screen-to-body ratio

Method used

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  • Fingerprint driving circuit and display panel
  • Fingerprint driving circuit and display panel
  • Fingerprint driving circuit and display panel

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Embodiment Construction

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0043]The transistors used in all embodiments of this application can be thin film transistors or field effect transistors or other devices with the same characteristics. Since the source and drain of the transistors used here are symmetrical, their source and drain can be interchanged. of. In the embodiment of the present application, in order to distinguish the two poles of the transistor except the gate, one pole is called the source, and the other pole is called the drain. ...

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PUM

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Abstract

The embodiment of the invention provides a GOA circuit and a display panel, the fingerprint driving circuit comprises multiple stages of cascaded fingerprint driving units, and each stage of fingerprint driving unit comprises a pull-up control module, a download module, a pull-up module, a maintenance module and a pull-down module. According to the fingerprint driving circuit and the display panelprovided by the embodiment of the invention, the scanning signal and the reset signal are output by adopting one driving circuit, so that two GOA circuits do not need to be adopted for driving for the fingerprint identification unit, the width of a non-display area can be reduced, and the screen-to-body ratio can be increased.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a GOA circuit and a display panel. Background technique [0002] With the rapid development of science and technology in today's society, electronic products such as mobile phones, computers and televisions are widely used in all aspects of life. Therefore, display panels are widely used, and fingerprint identification, as a common application, requires a fingerprint identification module to be integrated into the display panel. That is, in addition to the original display GOA (English full name: Gate Driver on Array) circuits on the left and right sides, it is also necessary to add a fingerprint GOA circuit. [0003] However, each fingerprint recognition unit needs a reset signal and a scan signal to be driven. Therefore, two fingerprint GOA circuits are required for one fingerprint identification unit, resulting in an increase in the width of the non-display area, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G09G3/20
CPCG09G3/20G06V40/1306
Inventor 周永祥
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD