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Display device and display method

A display device and display area technology, applied in static indicators, print image acquisition, instruments, etc., can solve problems such as flickering brightness and sudden changes in non-fingerprint recognition areas

Active Publication Date: 2019-09-24
YUNGU GUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, an embodiment of the present invention provides a display device and a display method to solve the problem of flickering or sudden change in brightness in non-fingerprint recognition areas in the prior art

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Embodiment Construction

[0031] As mentioned in the background, the display device in the prior art has the technical problem that the non-fingerprint recognition area is prone to flicker or sudden change in brightness during optical fingerprint wake-up. The inventor found that the reason for this problem is that the current display device turns on the highest brightness in all areas of the screen to ensure the accuracy of the fingerprint identification area, and then reduces the brightness of the non-fingerprint identification area, without separately controlling the fingerprint identification area. Brightness, during this process, non-fingerprint recognition areas will appear flickering or sudden changes in brightness. In order to solve the above problems, the inventor found that by independently controlling the gray levels of all pixel units in the fingerprint identification area, reducing the correlation with the control of the gray levels of all pixel units in the non-fingerprint identification ar...

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Abstract

The invention provides a display device, comprising: a screen body comprising a first display area and a second display area; a display driving chip which is electrically connected with the screen body and is used for driving the screen body to display and emit light, wherein the display driving chip comprises a first preset gray scale generation module used for generating a first preset gray scale voltage; a second gray scale generation module which is used for calculating the gray scale required by each pixel unit in the second display area according to the image data and generating a gray scale voltage interval comprising a plurality of gray scale voltages; a gray scale driving module which is used for selecting gray scale voltage corresponding to the gray scale required by each pixel unit in the second display area from the gray scale voltage interval; and a first control module which is used for controlling the gray scale driving module to distribute the first preset gray scale voltage to all the pixel units in the first display area. By independently controlling the gray scale of the first display area, flickering or brightness abrupt change of the second display area is avoided.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display device and a display method. Background technique [0002] With the continuous development of display technology, optical screen fingerprint recognition technology has attracted much attention. In the existing display device, during the optical fingerprint wake-up period, the fingerprint recognition area of ​​the screen needs to be turned on with the highest brightness to ensure the accuracy of fingerprint recognition. However, non-fingerprint recognition areas are prone to flickering or sudden changes in brightness, which affects user experience. Contents of the invention [0003] In view of this, the embodiments of the present invention provide a display device and a display method to solve the problem of flickering or sudden change in brightness of non-fingerprint identification areas in the prior art. [0004] One aspect of the present invention provide...

Claims

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Application Information

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IPC IPC(8): G06K9/00G09G3/3208
CPCG09G3/3208G09G2320/0271G06V40/1318G09G2320/0276G09G2320/0686G09G2354/00G09G2320/0247G09G2320/0626G09G3/20
Inventor 陈心全张小宝王峥丁伟
Owner YUNGU GUAN TECH CO LTD
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