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Array substrate, preparation method thereof, display panel and display device

A technology for array substrates and substrate substrates, applied in character and pattern recognition, instruments, fingerprint/palmprint acquisition/organization, etc., can solve the problem of low sensitivity of fingerprint recognition devices, and achieve the goal of ensuring detection sensitivity and improving transmittance Effect

Active Publication Date: 2017-12-08
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, embodiments of the present invention provide an array substrate and its preparation method, a display panel, and a display device to solve the technical problem of low sensitivity of the fingerprint recognition device in the prior art when the fingerprint recognition device is arranged on the non-light-emitting side

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  • Array substrate, preparation method thereof, display panel and display device
  • Array substrate, preparation method thereof, display panel and display device
  • Array substrate, preparation method thereof, display panel and display device

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Embodiment Construction

[0037] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be fully described below through specific implementations in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, All fall within the protection scope of the present invention.

[0038] Each person's skin patterns, including fingerprints, are different in patterns, break points and intersections, which are unique and remain the same throughout their lives. Based on this, we can associate a person with his fingerprints and compare his fingerprints with pre-saved fingerprint data to verify his true identity. This is fingerprint recognition techn...

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Abstract

The embodiment of the invention discloses an array substrate, a preparation method thereof, a display panel and a display device. The array substrate comprises a first underlayer substrate, a fingerprint identification unit, a driving circuit layer and a transparent film layer, and is characterized in that the fingerprint identification unit comprises a photosensitive diode, and the fingerprint identification unit is used for performing fingerprint identification according to light reflected to the fingerprint identification unit via a touch main body; the driving circuit layer is located at the side, which is away from the fingerprint identification unit, of the first underlayer substrate, at least one opening structure is formed in the driving circuit layer and the first underlayer substrate, and the vertical projection of the opening structure on the first underlayer substrate and the vertical projection of the photosensitive diode on the first underlayer substrate have an overlapping area; and the transparent film layer at least fills the opening structure. According to the invention, the photosensitive diode is provided with the transparent film layer above, so that the transmittance of the film layer above the photosensitive diode is improved, the fingerprint identification unit can well receive the light reflected to the fingerprint identification unit via the touch main body, and the detection sensitivity of the fingerprint identification unit is ensured.

Description

Technical field [0001] The embodiments of the present invention relate to the field of semiconductor technology, in particular to an array substrate and a preparation method thereof, a display panel and a display device. Background technique [0002] Fingerprints are inherent to everyone and are unique. With the development of technology, a variety of display devices with fingerprint recognition functions have appeared on the market, such as mobile phones, tablets, and smart wearable devices. . In this way, before operating the display device with fingerprint recognition function, the user only needs to touch the fingerprint recognition module of the display device with his finger to perform authorization verification, which simplifies the authorization verification process. [0003] In the existing display device with fingerprint recognition function, in order to ensure that the display device has a larger opening area, the fingerprint recognition device is generally set on the n...

Claims

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Application Information

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IPC IPC(8): G06K9/00H01L27/32
CPCG06V40/1318H10K59/60H10K59/40
Inventor 翟应腾
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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