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Display panel, fingerprint identification method thereof and display device

A display panel, fingerprint recognition technology, applied in character and pattern recognition, acquisition/organization of fingerprints/palmprints, instruments, etc., to reduce the probability of detecting uneven brightness and easily distorted imaging edges, reduce size, increase The effect of density

Active Publication Date: 2019-06-07
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the accuracy of fingerprint recognition in the prior art needs to be further improved

Method used

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  • Display panel, fingerprint identification method thereof and display device
  • Display panel, fingerprint identification method thereof and display device
  • Display panel, fingerprint identification method thereof and display device

Examples

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Embodiment Construction

[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as any limitation of the invention, its application or uses.

[0038] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0039] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may...

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Abstract

The invention discloses a display panel, a fingerprint identification method thereof and a display device. The display panel includes: a substrate layer; a light emitting layer; a shading layer; a photosensitive fingerprint sensor layer, and a fingerprint recognition light source, the shading layer comprises a plurality of small imaging holes, the plurality of small imaging holes at least comprisefirst small imaging holes and second small imaging holes, and one second small imaging hole is formed between at least two adjacent first small imaging holes; wherein the shading layer is located onthe side, facing the light-emitting surface of the display panel, of the photosensitive fingerprint sensor layer; the fingerprint recognition light source generates first light rays at first time andgenerates second light rays at second time, the first light rays can pass through the first small imaging hole and cannot pass through the second small imaging hole, and the second light rays can passthrough the second small imaging hole and cannot pass through the first small imaging hole. According to the invention, higher imaging hole density can be supported under the conditions of fixed object-image distance and no crosstalk, so that the image uniformity is improved, and the recognition accuracy is improved.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a display panel, a fingerprint identification method thereof, and a display device. Background technique [0002] Fingerprints are inherent to everyone. With the development of technology, a variety of display devices with fingerprint recognition functions have appeared on the market, such as mobile phones, tablet computers, and smart wearable devices. Before operating a display device with a fingerprint recognition function, the user only needs to touch the display device with a finger to perform authorization verification, which simplifies the authorization verification process. Moreover, with the gradual increase in the application scenarios of the fingerprint recognition function, the fingerprint recognition area is gradually changed from Some areas have evolved into full-screen recognition. [0003] In the existing display devices based on optical fingerpr...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/20
CPCG02B5/003G02B5/201G02B5/3025G06V40/1318H01L27/14625H01L27/14623H01L27/14678H01L27/14621G02B5/3016
Inventor 曾洋卢峰虞豪驰张卿
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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