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Display module

A display module and display panel technology, applied in character and pattern recognition, printing image acquisition, instruments, etc., can solve problems such as performance needs to be improved, and achieve the effect of improving fingerprint imaging function, reducing impact, and reducing the difficulty of manufacturing process

Active Publication Date: 2019-12-13
SHANGHAI OXI TECH
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AI Technical Summary

Problems solved by technology

[0005] However, in the existing technology, the structure of the display module integrated with optical fingerprint imaging technology needs to be improved, and the performance needs to be improved.

Method used

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Embodiment Construction

[0036] It can be seen from the background art that the display module integrated with the optical fingerprint imaging technology in the prior art has the problems of poor fingerprint image quality and low product manufacturing yield. Combining with the structure of the display module integrated optical fingerprint imaging technology, the reasons for its poor image quality and low manufacturing yield are analyzed:

[0037] refer to figure 1 , shows a schematic cross-sectional structural view of a display module integrating optical fingerprint imaging technology.

[0038] The display module includes: a display panel 11; a sensing surface 12, the sensing surface 12 is located on one side of the display panel 11; an image sensor 13, the image sensor 13 is located on the back side of the display panel 11 One side of the sensing surface 12.

[0039] The light generated by the display panel 11 partly exits from the sensing surface 12 to realize image display; Part of the generated...

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Abstract

A display module comprises a display panel; a sensing surface which is located on one side of the display panel, wherein part of light generated by the display panel forms sensing light carrying fingerprint information on the sensing surface; a light collimation layer which is positioned on one side, back to the sensing surface, of the display panel; wherein the light collimation layer is suitablefor transmitting sensing light, the light collimation layer comprises a first surface facing the display panel and a second surface opposite to the first surface, at least one surface of the first surface and the second surface is a diffuse reflection surface, and the diffuse reflection surface is suitable for enabling part of the sensing light to generate diffuse reflection when the sensing light is received; and an image sensor which is located on the side, back to the display panel, of the light collimation layer, and the image sensor collects sensing light of the transmission light collimation layer to obtain a fingerprint image. According to the technical scheme, on the premise that fingerprint imaging and image display functions are integrated, the quality of the obtained fingerprint image can be improved, and the purpose of improving the product manufacturing yield of the display module is achieved.

Description

technical field [0001] The invention relates to the field of optical fingerprint identification, in particular to a display module. Background technique [0002] Fingerprint imaging recognition technology is to collect the fingerprint image of the human body through the fingerprint sensor, and then compare it with the existing fingerprint imaging information in the system to judge whether it is correct or not, and then realize the technology of identity recognition. Due to its ease of use and the uniqueness of human fingerprints, fingerprint recognition technology has been widely used in various fields. For example, security inspection areas such as public security bureaus and customs, building access control systems, and consumer products such as personal computers and mobile phones, etc. [0003] The realization of fingerprint imaging recognition technology includes optical imaging, capacitive imaging, ultrasonic imaging and other technologies. Relatively speaking, the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/1318
Inventor 凌严朱虹
Owner SHANGHAI OXI TECH
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