Unlocking method of fingerprint mobile device under optical screen

A mobile device, optical technology, applied in the acquisition/organization of fingerprints/palmprints, static indicators, character and pattern recognition, etc., can solve problems such as splash screen, screen splash screen, brightness change, etc.

Pending Publication Date: 2021-08-13
FOCALTECH ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when a touch event occurs and returns to the normal display mode or even the high brightness mode, the duty cycle of the brightness adjustment signal will be forced to be adjusted to 100%, and the background will follow the duty cycle of the brightness adjustment signal from 50% The brightness changes when the % is adjusted to 100%, and the flickering problem occurs
In other words, the brightness change caused by the adjustment of the duty cycle will cause the screen to flicker

Method used

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  • Unlocking method of fingerprint mobile device under optical screen
  • Unlocking method of fingerprint mobile device under optical screen
  • Unlocking method of fingerprint mobile device under optical screen

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] image 3 It is a flow chart of a method for unlocking an optical under-display fingerprint mobile device according to a preferred embodiment of the present invention. Please refer to image 3 In this embodiment, an active matrix organic light emitting diode (Active Matrix Organic Light Emitting Diode, AMOLED) display is still taken as an example, but those of ordinary skill in the art should know that a passive matrix organic light emitting diode (Passive matrix Organic Light Emitting Diode, PMOLED) displays can also be implemented, and if there is a light-transmitting display panel, the present invention can also be implemented. Therefore, the present invention is not limited thereto. The unlocking method of the optical screen fingerprint mobile device includes the following steps:

[0020] Step S300: start each step of the embodiment of the present invention. For the convenience of describing the present invention, it is assumed that the AMOLED display is in normal...

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PUM

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Abstract

The invention discloses a method for unlocking a fingerprint mobile device under an optical screen. The method comprises the following steps of: judging whether to enter an Always On Display (AOD) mode or not; when entering the constant display mode, setting the duty cycle of the brightness adjustment signal to be fully open, and adjusting the GAMMA to be a low-brightness GAMMA; judging whether to enter a high-brightness mode or not; and when entering the high brightness mode, adjusting the GAMMA to a high brightness GAMMA.

Description

technical field [0001] The present invention relates to a display driving technology, and more specifically, the present invention relates to an unlocking method of an optical under-screen fingerprint mobile device that can avoid flickering. Background technique [0002] figure 1 It is a schematic diagram of the panel operation process when unlocking the optical under-display fingerprint mobile device in the prior art. Please refer to figure 1 , Generally, the optical screen fingerprint unlocking screen will use an active matrix organic light emitting diode (Active Matrix Organic Light Emitting Diode, OLED) panel. When the active matrix organic light emitting diode panel enters the constant display mode (Always On Display, AOD mode), it will adjust the brightness to a lower brightness, such as figure 1 As shown, the register of 51H is adjusted to 03F, and the power supply (OLED power) of the active matrix organic light emitting diode panel is powered by the driver IC to a...

Claims

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Application Information

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IPC IPC(8): G09G3/3225G06K9/00
CPCG09G3/3225G09G2320/0626G09G2320/0673G06V40/1318
Inventor 叶碧纯
Owner FOCALTECH ELECTRONICS
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