A kind of oled display panel, fingerprint identification method and display device

A display panel and fingerprint technology, which is applied in character and pattern recognition, acquisition/organization of fingerprints/palmprints, static indicators, etc. It can solve the problems of large distribution area of ​​small holes, many pixels, poor imaging effect of OLED display panel, etc. , to achieve the effect of improving the imaging effect and increasing the number

Active Publication Date: 2021-09-03
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventors have found through research that the distribution area of ​​small holes on the OLED display panel in the related art is relatively large, so that the number of pixels that cannot be displayed normally in the OLED display panel is large, resulting in a poor imaging effect of the OLED display panel

Method used

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  • A kind of oled display panel, fingerprint identification method and display device
  • A kind of oled display panel, fingerprint identification method and display device
  • A kind of oled display panel, fingerprint identification method and display device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] An embodiment of the present application provides an OLED display panel, image 3 Side view of the OLED display panel provided for the embodiment of the present application Figure 1 , Figure 4 The top view of the light-shielding layer provided for the embodiment of the present application, such as image 3 and Figure 4 As shown, the OLED display panel provided by the embodiment of the present application includes: a base substrate 10 and a light-shielding layer 20 disposed on the base substrate 10, an OLED light-emitting device 30 and a sensor assembly 40; the light-shielding layer 20 is located between the OLED light-emitting device 30 and the sensor assembly between components 40.

[0049] Specifically, the light-shielding layer 20 includes: a small hole imaging area 21 , which is used to image a part of the fingerprint to be tested on the sensor component 40 when detecting the fingerprint to be tested.

[0050] Wherein, the OLED light-emitting device 30 includ...

Embodiment 2

[0085] Based on the inventive concepts of the above embodiments, the embodiment of the present application also provides a fingerprint identification method, which is applied to the OLED display panel provided in the first embodiment. The fingerprint identification method provided in the embodiment of the present application includes:

[0086] When detecting the fingerprint to be tested, the partial fingerprint image of the fingerprint to be tested passing through the imaging area of ​​the small hole is acquired.

[0087] Wherein, the fingerprint identification method provided in the present application is applied to the OLED display panel provided in Embodiment 1, and its realization principle and realization effect are similar, and will not be repeated here.

[0088] Optionally, when detecting the fingerprint to be tested, after obtaining the partial fingerprint image of the fingerprint to be tested passing through the pinhole imaging area, the fingerprint recognition method ...

Embodiment 3

[0091] Based on the inventive concepts of the foregoing embodiments, the embodiments of the present application further provide a display device, including: an OLED display panel.

[0092] Wherein, the OLED display panel in the embodiment of the present application is the OLED display panel provided in the first embodiment, and its implementation principle and effect are similar, and will not be repeated here.

[0093] Wherein, the display device is a touch display device, and the OLED display panel has a touch function.

[0094] Optionally, the OLED display panel with touch function may be a self-capacitance OLED display panel or a mutual-capacity OLED display panel. The specific setting method of the touch electrodes of the self-capacitance OLED display panel is the same as that of related technologies. The related technologies are the same, for example, setting the driving electrodes and sensing electrodes cross-insulated from each other, which will not be repeated here. ...

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Abstract

An OLED display panel, a fingerprint identification method, and a display device, wherein the OLED display panel includes: a base substrate and a light-shielding layer arranged on the base substrate, an OLED light-emitting device, and a sensor assembly; the light-shielding layer is located between the OLED light-emitting device and the sensor assembly Between; the light-shielding layer includes: a small hole imaging area, which is used to image a part of the fingerprint to be tested on the sensor component when the small hole imaging area is used to detect the fingerprint to be tested. The pinhole imaging area located on the light-shielding layer in the present application images the local fingerprint to be tested into the sensor component, reduces the distribution area of ​​pinholes in the OLED display panel, and increases the number of normal display pixels in the OLED display panel , thereby improving the imaging effect of the OLED display panel.

Description

technical field [0001] This article relates to the field of touch display technology, in particular to an OLED display panel, a fingerprint identification method and a display device. Background technique [0002] Fingerprints are inherently unique and invariable features that can be distinguished from others. It consists of ridges and valleys on the skin surface of the fingertips. The composition details of these ridges and valleys determine the uniqueness of the fingerprint pattern. The display panel with fingerprint identification function developed therefrom has been used in personal identity verification, increasing the information security of the display device. [0003] In related technologies, an Organic Light-Emitting Diode (OLED for short) display panel with a fingerprint recognition function utilizes an image sensor and small holes designed in the OLED display panel to realize fingerprint recognition through the principle of small hole imaging. The inventors have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00H01L27/32
CPCG06V40/1318H10K59/00H10K59/65H10K59/126G09G3/20
Inventor 冯彬峰刘颖李奇峰罗永辉王超李飞赵海瑞陈禹鹏
Owner BOE TECH GRP CO LTD
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