Display component, display screen and electronic device

Abstract

The embodiment of the invention provides a display component, a plurality of thin film transistors TFTs and a plurality of photoelectric detectors PDs are disposed in the display component, the plurality of PDs convert detected light into electrical signals, wherein the plurality of PDs and the plurality of TFTs are disposed on two opposite inner side surfaces in the same layer of the display component, projections of the plurality of PDs and the plurality of TFTs on a first plane are in alternative distribution, and the first plane is a plane where a layer provided with the plurality of PDs and the plurality of TFTs is located. A display screen comprising the display component provided by the embodiment of the invention can improve the accuracy of fingerprint recognition, and meanwhile a large-area area of the display screen can be applied to the fingerprint recognition by flexibly arranging different numbers of PDs.

Description

technical field [0001] The present application relates to the technical field of display screens, in particular to a display screen with built-in photo detectors (photo detectors, PDs) for fingerprint identification. Background technique [0002] With the development and popularization of smart terminals, fingerprint recognition technology is widely applied to smart terminals for identification, especially in the field of smart phones. Fingerprint recognition technology is generally used in smart phones to replace traditional digital passwords. Realize identity authentication in scenarios such as mobile phone screen unlocking and mobile payment identity authentication. [0003] Fingerprint identification technologies mainly include capacitive fingerprint identification, ultrasonic fingerprint identification and optical fingerprint identification, among which optical fingerprint identification is more widely used. The key device of fingerprint identification technology is th...

AI Technical Summary

Problems solved by technology

Judging from the existing screen fingerprint recognition solutions, the working area on the display screen that can be used to identify fingerprints is limited to the area where the fingerprint recognition sensor is installed under the display screen, which is limited by the size of the fingerprint recognition sensor. Since the working area for fingerprint recognition is not large, it is impossible to realize fingerprint recognition on a large area on the display screen or even anywhere on the full screen.

Moreover, in the existing screen fingerprint recognition scheme, the fingerprint recognition module (mainly refers to the fingerprint recognition sensor) occupies the physical space under the display screen, which limits the thickness of the body of the device equipped with fingerprint recognition technology.

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