Display panel and preparation method thereof and display device

A display panel and display area technology, applied in semiconductor/solid-state device manufacturing, instrumentation, acquisition/organization of fingerprints/palmprints, etc., can solve the problems of low recognition speed and accuracy, thick device structure, etc., to reduce thickness and processing. Process flow, thin film thickness, signal enhancement effect

Active Publication Date: 2020-10-30
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the existing methods, the present application proposes a display panel and its preparation method, and a display device to solve the problems of thicker device structures and low recognition speed and accuracy of existing ultrasonic fingerprint recognition products

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  • Display panel and preparation method thereof and display device
  • Display panel and preparation method thereof and display device
  • Display panel and preparation method thereof and display device

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Embodiment Construction

[0048]The present application is described in detail below, and examples of embodiments of the present application are shown in the drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Also, detailed descriptions of known technologies will be omitted if they are not necessary to illustrate the features of the present application. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.

[0049] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be u...

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Abstract

The invention relates to the technical field of display, and provides a display panel and a preparation method thereof, and a display device, the display panel comprises a substrate layer comprising adisplay area and a non-display area, wherein a buffer layer, a switching device layer, a functional device layer, a packaging layer and a protective layer are stacked on the substrate layer, the functional device layer comprises a light-emitting device layer located in a display area and a fingerprint identification device layer located in a non-display area, and the switching device layer comprises a first driving layer used for driving the light-emitting device layer and a second driving layer used for driving the fingerprint identification device layer. Compared with an existing under-screen ultrasonic fingerprint identification product, the display panel provided by the invention has the advantages that the thickness and the processing technological process of the whole display panelare reduced; the thickness of a film layer penetrated by ultrasonic waves is smaller, so that the fingerprint identification speed and accuracy are improved; and since the fingerprint identification device of the fingerprint identification device layer is located in the non-display area, an ultrasonic fingerprint identification area with a larger area can be realized.

Description

technical field [0001] The present application relates to the field of display technology, and in particular, the present application relates to a display panel, a manufacturing method thereof, and a display device. Background technique [0002] Fingerprint recognition, as a technology for identifying human biometrics, has been increasingly applied to more display products in recent years, providing more convenience for the realization of human-computer interaction (users and display products), and at the same time It also protects the privacy of users to a greater extent. [0003] The existing ultrasonic fingerprint identification display panel is mainly composed of two parts: an organic electroluminescent diode (OLED) display module and an ultrasonic fingerprint identification device (Sensor). Below the display module, the overall device structure is thicker, which increases the processing process; and the ultrasonic transmission and reception stages pass through more fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32G06K9/00H01L27/12H01L51/56
CPCH01L27/1214G06V40/1306H10K59/65H10K71/00Y02E10/549
Inventor 崔钊张锋刘文渠吕志军董立文宋晓欣孟德天王利波侯东飞黄海涛姚琪
Owner BOE TECH GRP CO LTD
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