Method and Apparatus for Controlling Fingerprint Acquisition Based on a Display Screen and Electronic Device

Abstract

The present application discloses a method for controlling fingerprint acquisition based on a display screen and a related apparatus, which are applied to a display screen with a fingerprint acquisition function. In the disclosure, by detecting a fingerprint acquisition triggering instruction generated in an electronic device in real time, a preset fingerprint acquisition region of the display screen is controlled to emit light and a fingerprint sensor is triggered to acquire a fingerprint image, if and only if the fingerprint acquisition triggering instruction is detected. When the fingerprint acquisition triggering instruction does not exist, the display screen is not affected and the fingerprint sensor is in a non-operating state so as to save energy. Moreover, only the preset fingerprint acquisition region on the display screen is controlled to perform the fingerprint acquisition, and other regions on the display screen are not affected in fingerprint acquisition, therefore, the original display or the black screen state of the display screen is not affected, and it is ensured that the user can accurately touch the region with a finger to acquire a fingerprint image accurately and quickly. In this way, the cost of hardware integration may be reduced, the appearance may be simplified and the user experience may be improved.

What is claimed is: 
     
         1 . A method for controlling fingerprint acquisition based on a display screen, which is applied to an electronic device, wherein the electronic device comprises at least a display screen, and a fingerprint sensor installed under the display screen corresponding to a preset fingerprint acquisition region of the display screen, the method comprises:
 detecting a fingerprint acquisition triggering instruction from a user or an application;   controlling the preset fingerprint acquisition region to emit light to illuminate a finger surface, according to the fingerprint acquisition triggering instruction detected; and   triggering the fingerprint sensor to acquire a fingerprint image,   wherein the fingerprint acquisition triggering instruction includes an authentication instruction generated by the application in the electronic device.   
     
     
         2 . The method according to  claim 1 , wherein the controlling the preset fingerprint acquisition region to emit light according to the fingerprint acquisition triggering instruction detected comprises:
 controlling the preset fingerprint acquisition region to emit light to illuminate a finger surface, when the fingerprint acquisition triggering instruction detected is a display screen wake-up and authentication instruction or the authentication instruction.   
     
     
         3 . The method according to  claim 1 , wherein the controlling the preset fingerprint acquisition region to emit light according to the fingerprint acquisition triggering instruction detected comprises:
 controlling the preset fingerprint acquisition region to display a preset prompt icon to prompt the user to touch the preset fingerprint acquisition region with a finger and inform the user of a position to be touched by the finger, according to the fingerprint acquisition triggering instruction;   determining whether the user touches the preset fingerprint acquisition region with the finger by using a touch sensing apparatus; and   controlling the preset fingerprint acquisition region to emit light to illuminate a finger surface, when it is determined that the user touches the preset fingerprint acquisition region with the finger.   
     
     
         4 . A method for controlling fingerprint acquisition based on a display screen, which is applied to an electronic device, wherein the electronic device comprises at least a display screen, and a fingerprint sensor installed under the display screen corresponding to a preset fingerprint acquisition region of the display screen, the method comprises:
 detecting a fingerprint acquisition triggering instruction from a user or an application;   controlling the preset fingerprint acquisition region to emit light to illuminate a finger surface, according to the fingerprint acquisition triggering instruction detected; and   
       triggering the fingerprint sensor to acquire a fingerprint image, 
       wherein the controlling the preset fingerprint acquisition region to emit light according to the fingerprint acquisition triggering instruction detected comprises: 
       controlling the preset fingerprint acquisition region to display a preset prompt icon to prompt the user to touch the preset fingerprint acquisition region with a finger and inform the user of a position to be touched by the finger, according to the fingerprint acquisition triggering instruction; 
       determining whether the user touches the preset fingerprint acquisition region with the finger by using a touch sensing apparatus; and 
       controlling the preset fingerprint acquisition region to emit light to illuminate a finger surface, when it is determined that the user touches the preset fingerprint acquisition region with the finger. 
     
     
         5 . The method according to  claim 4 , wherein the controlling the preset fingerprint acquisition region to display a preset prompt icon comprises:
 controlling the preset fingerprint acquisition region to statically display the preset prompt icon, or controlling the preset fingerprint acquisition region to dynamically display the preset prompt icon,   wherein the controlling the preset fingerprint acquisition region to dynamically display the preset prompt icon comprises at least one of:   dynamically adjusting brightness of the preset prompt icon; and   controlling the preset fingerprint acquisition region to display multiple different types of preset prompt icons in sequence.   
     
     
         6 . The method according to  claim 5 , wherein a type of the preset prompt icon comprises at least one of a preset figure, a preset image, and a preset text. 
     
     
         7 . A method for controlling fingerprint acquisition based on a display screen, which is applied to an electronic device, wherein the electronic device comprises at least a display screen, and a fingerprint sensor installed under the display screen corresponding to a preset fingerprint acquisition region of the display screen, the method comprises:
 detecting a fingerprint acquisition triggering instruction from a user or an application;   controlling the preset fingerprint acquisition region to emit light to illuminate a finger surface, according to the fingerprint acquisition triggering instruction detected; and   
       triggering the fingerprint sensor to acquire a fingerprint image, 
       wherein the fingerprint acquisition triggering instruction comprises at least one of: 
       a first display screen wake-up instruction generated when it is detected that a power key or a start key of the electronic device is pressed by a user in a black screen state; 
       a second display screen wake-up instruction generated when a touch sensing apparatus detects that a first touch operation is performed by the user in a black screen state, wherein the first touch operation comprises any one of performing a single click on the display screen, performing a continuous click on the display screen and touching the display screen for a long time, and the touch sensing apparatus is disposed in the electronic device to detect a touch operation of the user on the display screen; and 
       a display screen wake-up and authentication instruction generated when the touch sensing apparatus detects that a second touch operation is performed by the user in a black screen state, wherein the second touch operation comprises any one of performing a single click or continuous click on the preset fingerprint acquisition region and touching the preset fingerprint acquisition region for a long time. 
     
     
         8 . A method for controlling fingerprint acquisition based on a display screen, which is applied to an electronic device, wherein the electronic device comprises at least a display screen, and a fingerprint sensor installed under the display screen corresponding to a preset fingerprint acquisition region of the display screen, the method comprises:
 detecting a fingerprint acquisition triggering instruction from a user or an application;   controlling the preset fingerprint acquisition region to emit light to illuminate a finger surface, according to the fingerprint acquisition triggering instruction detected; and   
       triggering the fingerprint sensor to acquire a fingerprint image, 
       wherein the controlling the preset fingerprint acquisition region to emit light to illuminate a finger surface comprises:
 adjusting screen brightness of the preset fingerprint acquisition region. 
 
     
     
         9 . The method according to  claim 8 , the adjusting of screen brightness of the preset fingerprint acquisition region comprises:
 determining whether a preset template matching the fingerprint image exists;   triggering the electronic device to perform a corresponding preset operation, when the preset template matching the fingerprint image exists; and   adjusting the screen brightness of the preset fingerprint acquisition region, when the preset template matching the fingerprint image does not exist.