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Display device, electronic device, display control method, and storage medium

A display device and control circuit technology, applied in static indicators, instruments, calculations, etc., can solve the problem of high power consumption, achieve the effects of reducing power consumption, improving user experience, and improving battery life

Active Publication Date: 2022-04-15
OPPO CHONGQING INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in related technologies, electronic devices consume relatively high power consumption in the process of fingerprint unlocking based on the above-mentioned optical fingerprint recognition principle.

Method used

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  • Display device, electronic device, display control method, and storage medium
  • Display device, electronic device, display control method, and storage medium
  • Display device, electronic device, display control method, and storage medium

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Experimental program
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Embodiment Construction

[0041] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0042] Usually, there are multiple OLED pixel units (which can be expressed as pixel in English) on the electronic device displayed by OLED, such as figure 2 As shown, each OLED pixel unit contains two TFTs (TFT 1 and TFT 2), storage capacitor C st and OLEDs. based on figure 2 The structure of the OLED pixel unit shown, the principle of the OLED pixel unit emitting light is: the anode signal ELVDD and the cathode signal ELVSS transmitted in the OLED pixel unit provide the anode voltage and the cathode voltage for the OLED respectively; When a row scan signal is transmitted on the scan line, TFT1 will be turned on, and the turned-on TFT1 enables the data signal transmitted on the data line to be written into C st ; in C st When the power of the battery reaches a preset threshold, TFT2 will be turned on, and aft...

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Abstract

The application discloses a display device, an electronic device, a display control method and a storage medium. Wherein, the display device includes: a control circuit, M pixel units, and a first drive circuit connected to N pixel units in the M pixel units; the N pixel units are arranged on the fingerprint of the display device Identification area; M and N are integers greater than 0; the control circuit is configured to send an enabling signal to the first drive circuit when the fingerprint recognition area detects a fingerprint unlocking operation; the first drive circuit , for sending a driving signal to the N pixel units after being enabled, so that the OLEDs in the N pixel units are in a light-emitting state.

Description

technical field [0001] The present application relates to the field of display technology, and in particular to a display device, an electronic device, a display control method, and a storage medium. Background technique [0002] Optical fingerprint identification technology is widely used in electronic devices displayed by Organic Light-Emitting Diode (OLED, Organic Light-Emitting Diode). Such as figure 1 As shown, the principle of optical fingerprint recognition of electronic equipment displayed by OLED is: the OLED light-emitting device emits light and emits light through the upper glass of the display screen; when the emitted light hits the finger, part of the light is reflected and received by the optical fingerprint sensor; The optical fingerprint sensor converts the different optical information carried by the valleys and ridges of the finger into fingerprint image information by means of photoelectric conversion; The information is matched to realize fingerprint id...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225G06V40/13
CPCG09G3/3225G06V40/13G06V40/1365
Inventor 谭江洪
Owner OPPO CHONGQING INTELLIGENT TECH CO LTD