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Touch display screen and electronic device

A touch display and electronic device technology, applied in the direction of electrical digital data processing, instruments, character and pattern recognition, etc., can solve the problems of increasing the difficulty of fingerprint collection and increasing the noise of fingerprint images, so as to avoid the interference of external light on the collection of fingerprints The process, the effect of reducing the difficulty of collection

Inactive Publication Date: 2018-07-06
NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH
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AI Technical Summary

Problems solved by technology

If the optical fingerprint sensor is applied to the mobile phone screen in the form of a full screen, because the mobile phone cannot add a visor, and the finger is not enough to cover the entire screen, the fingerprint sensor will be severely exposed to ambient light, resulting in increased noise in the fingerprint image. The difficulty of fingerprint collection

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  • Touch display screen and electronic device
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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] In addition, the following descriptions of the various embodiments refer to the attached drawings to illustrate specific embodiments in which the present invention can be implemented. The directional terms mentioned in the present invention, for example, "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., only is to refer to the direction of the attached drawings. Therefore, the direction terms used are for ...

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Abstract

The embodiment of the invention provides a touch display screen used for collecting a fingerprint. The touch display screen comprises a touch panel, a fingerprint collection layer and a backlight module, wherein the fingerprint collection layer is located between the touch panel and the backlight module, the projection of the touch panel on the fingerprint collection layer is contained in the fingerprint collection layer, the touch panel determines a finger touch region and changes the state of the region into a light-transmitting state, light of the backlight module reaches the fingerprint through the fingerprint collection layer and the region in the light-transmitting state, and therefore the fingerprint collection layer collects the fingerprint. According to the touch display screen and an electronic device, external light (namely noise) cannot enter the liquid crystal panel through other regions, therefore, the situation that the external light disturbs the fingerprint collectionprocess is avoided, and fingerprint collection difficulty is lowered.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a touch screen and an electronic device. Background technique [0002] At present, the technology for collecting fingerprint information usually adopts optical fingerprint collection technology and semiconductor fingerprint collection technology. Semiconductor fingerprint sensors are often used to collect fingerprint information on mobile phones. Usually, a capacitive fingerprint sensor needs to be installed on the front of the mobile phone. The user collects fingerprint information by the fingerprint sensor and transmits the fingerprint information to the fingerprint identification module inside the mobile phone body. In order to perform fingerprint identification and judgment, and then perform subsequent operations. However, the semiconductor fingerprint sensor on this mobile phone takes up additional space on the mobile phone, making the mobile phone bulky, whi...

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Application Information

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IPC IPC(8): G06K9/00G06F3/041
CPCG06F3/041G06V40/1324
Inventor 陈利勇徐露谌磊朱文龙
Owner NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH
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