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Display panel and display device

A display panel and receiving device technology, applied in the field of display panels and display devices, can solve the problems of reducing collimated light components, reducing infrared transmittance, and reducing fingerprint image quality, etc.

Active Publication Date: 2021-01-12
XIAMEN TIANMA MICRO ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the brightness of the fingerprint image, spherical dots are set on the side of the light guide plate close to the light source, but the spherical dots will refract infrared rays, thereby reducing the collimated light component, resulting in a decrease in infrared penetration and reducing the quality of the fingerprint image

Method used

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Embodiment Construction

[0048]In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0049]It should be clear that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0050]The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms of "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0051]It should be understood that the term "...

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Abstract

The embodiment of the invention provides a display panel and a display device. The technical problem that in the prior art, fingerprint images collected by an under-screen fingerprint system are low in quality is solved. According to the display panel provided by the embodiment of the invention, the annular first bulge is arranged on the first area, corresponding to the fingerprint area, of the light guide plate, so that when collimated light passes through the first bulge after infrared light is reflected by a finger, the middle position of the first bulge is hollow, and no substance exists,so that when the collimated light passes through the hollow position of the first bulge, a refraction phenomenon does not occur, so that the collimated light still can be incident to the receiving device, equivalently the first protrusions are annular, the number of collimated light obtained after infrared light is reflected by fingers and refracted when the collimated light passes through the first protrusions is reduced, and therefore the number of the collimated light received by the receiving device is increased, and the quality of fingerprint images is improved.

Description

【Technical Field】[0001]The present invention relates to the field of display technology, and in particular to a display panel and a display device.【Background technique】[0002]With the development of display technology, display panels have a higher and higher screen-to-body ratio, and full screens have received widespread attention due to their narrow or even borderless display effects. Traditional fingerprint unlocking will affect the appearance of smart devices such as mobile phones, regardless of whether it is unlocked by scratching or pressing on the front or unlocking on the back. Therefore, the realization of full-screen mobile phones through under-screen fingerprint recognition technology is a future development trend.[0003]Under-screen fingerprint recognition technology is also called invisible fingerprint technology. It is a new technology that completes the fingerprint identification and unlocking process through the bottom of the screen glass. It mainly uses ultrasonic, op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G09F9/30
CPCG09F9/30G06V40/1324
Inventor 洪金龙
Owner XIAMEN TIANMA MICRO ELECTRONICS
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