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Display module

A display module and display panel technology, which is applied in character and pattern recognition, instruments, printing image acquisition, etc., can solve problems that affect the integration effect of fingerprint recognition and image display functions, customer experience is not friendly enough, hidden settings are not ideal, etc. , to achieve the integration of image display and fingerprint imaging functions, improve the effect of hidden settings, and integrate the image display and fingerprint imaging functions

Inactive Publication Date: 2019-03-05
SHANGHAI OXI TECH
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AI Technical Summary

Problems solved by technology

[0004] When the optical fingerprint imaging module is integrated with the display screen to form a display module, the hidden setting effect is often not ideal, and the customer experience is not friendly enough, which affects the integration effect of fingerprint recognition and image display functions

Method used

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Embodiment Construction

[0036] It can be seen from the background art that the display modules integrated with the fingerprint identification function in the prior art often have the problems of poor hidden setting effect and unfriendly customer experience.

[0037] refer to figure 1 , shows a schematic cross-sectional structure of an optical fingerprint imaging module.

[0038] The fingerprint imaging module mainly includes: a protective cover 13, an optical sensor 12, an integrated chip (not shown in the figure), a circuit board (not shown in the figure) and a light source on the circuit board (not shown in the figure) , the light guide plate 11, the upper protective shell (not shown in the figure) and the main components such as the lower protective shell (not shown in the figure). Wherein the optical sensor 12 is made on a glass substrate by semiconductor process technologies such as amorphous silicon thin film transistor (a-Si TFT), low temperature polysilicon thin film transistor (LTPS TFT) or...

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Abstract

A display module includes a light source for generating initial light; a waveguide layer located at on one side of the light source for transmitting the initial light and scattering a portion of the initial light to form incident light; a sensing surface on which incident light forms reflected light carrying fingerprint information; a self-luminescent display panel located on a side of the waveguide layer remote from the sensing surface, wherein the reflected light transmits the self-luminescent display panel; an optical sensor for acquiring reflected light transmitted through the self-luminescent display panel to obtain a fingerprint image. The waveguide layer is utilized to limit the propagation range of the initial light, improve the hiding display effect, and better realize the integration of the fingerprint identification and the image display function.

Description

technical field [0001] The invention relates to the field of fingerprint imaging, in particular to a display module. Background technique [0002] Fingerprint recognition technology collects the fingerprint image of the human body through the fingerprint imaging sensor, and then compares it with the existing fingerprint imaging information in the fingerprint recognition system to realize identity recognition. Due to the convenience of use and the uniqueness of human fingerprints, fingerprint recognition technology has been widely used in various fields, especially consumer electronics such as personal computers and mobile phones. The adoption of fingerprint recognition technology can greatly improve the safety and convenience of electronic products. . [0003] The imaging methods used in fingerprint identification technology include optical, capacitive, ultrasonic and other technologies. In consumer electronics products, when the fingerprint imaging module is set on the fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/1324G06V40/1318
Inventor 曲志刚朱虹辛胜陆震生
Owner SHANGHAI OXI TECH
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