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Sensing device

A sensing device and sensing unit technology, applied in radiation control devices, instruments, electrical components, etc., can solve the problems of poor durability of the protective layer, poor image contrast, blurred images, etc., and achieve high protective effect

Active Publication Date: 2018-07-31
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the thicker protective layer (such as glass) disposed on the sensing device, the photosensitive element is easy to receive the scattered light generated by the adjacent fingerprint, which makes the contrast of the image worse, and then causes problems such as image blur.
However, reducing the thickness of the protective layer also makes the durability of the protective layer worse

Method used

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Examples

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Embodiment Construction

[0057] The following disclosure provides many different embodiments or examples for implementing different features of the main content provided by the present disclosure. The components and configuration of a specific example are described below to simplify the present disclosure. Of course, this example is only illustrative and not intended to be limiting. For example, the following description "the first feature is formed on or on the second feature" may include the direct contact between the first feature and the second feature in the embodiment, and may also include the first feature and the second feature The additional features are formed between the first and second features without direct contact. In addition, the present disclosure may reuse element symbols and / or letters in various examples. This repetition is for simplicity and clarity, and does not in itself dictate the relationship between the various embodiments and / or configurations discussed.

[0058] Furth...

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Abstract

A sensing device includes an array substrate, a protective layer, and a backlight module. The array substrate includes a substrate and has a plurality of sensing units, wherein each sensing unit includes an active element, a photosensitive element, and at least one light transmitting area. The active components are disposed on the substrate. The photosensitive elements are disposed on the substrate and electrically connected to the active elements. The light transmitting areas are located around the photosensitive elements. The protective layer is disposed on the array substrate, wherein the protective layer has a plurality of grooves, and the grooves are disposed adjacent to the array substrate, and the grooves respectively overlap the photosensitive elements of the sensing units in a normal direction of the substrate. The backlight module is disposed on the other side of the array substrate opposite to the protective layer.

Description

technical field [0001] The present disclosure relates to a sensing device, in particular to a light sensing device. Background technique [0002] Fingerprint recognition is a widely used biometric technology. Its principle is to collect fingerprint images, and then use recognition software to extract and compare the characteristic information of fingerprints to determine the identity of the fingerprint owner. At present, various products have integrated the fingerprint identification function, such as notebook computers, mobile phones, and the like. Since each person's fingerprint is different, it can be used as a security mechanism to identify the identity of the user. [0003] A general thin film transistor (thin film transistor; TFT) backlight sensing device includes an array substrate. The array substrate includes active elements (such as TFT) and photosensitive elements. When the finger covers the sensing device, the backlight provided by the backlight module will sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/144H01L27/15G06K9/00
CPCH01L27/1446H01L27/156G06V40/1318
Inventor 陈瑞沛陈培铭张博超
Owner AU OPTRONICS CORP
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