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a display device

A display device and display panel technology, which is applied to instruments, computing, light guides, etc., can solve the problems of abnormal fingerprint recognition and low light transmittance in the fingerprint recognition area, and achieve the effect of increasing light intensity and avoiding insufficient light intensity.

Active Publication Date: 2021-11-23
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, the light transmittance of the fingerprint identification area in the display device is low, which results in darker images of the fingerprint identification area module compared to other areas and abnormal fingerprint identification.

Method used

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0025] Each person's skin texture, including fingerprints, varies in patterns, breakpoints, and intersections, which are unique and remain unchanged throughout life. Accordingly, we can match a person with his fingerprint, and verify his real identity by comparing his fingerprint with the pre-saved fingerprint data. This is fingerprint recognition technology. For a fingerprint recognition module with a backlight, the light emitted by the backlight passes through multiple media such as the array substrate, liquid c...

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Abstract

The embodiment of the present invention discloses a display device, which includes: a backlight module and a display panel located on the light output side of the backlight module; the display panel includes a fingerprint recognition area; the backlight module includes a light guide plate and a side-type light source; The light plate includes a light exit surface and a light entry surface; the side-input light source is located on one side of the light entry surface; at least one groove structure is provided inside the light guide plate and on the side facing the light exit surface, and the fingerprint recognition area is perpendicular to the light exit surface. The projection at least partially covers the vertical projection of the groove structure on the light-emitting surface; the groove structure is provided with a reflective layer; the initial light beam emitted by the side-type light source is reflected to the touch body through the reflective layer; or, the initial light beam emitted by the side-type light source After being reflected to the bottom of the groove structure by the reflective layer, it is reflected to the touch body. The purpose of increasing the light intensity of the fingerprint identification area in the display panel can be achieved by using the embodiments of the present invention.

Description

technical field [0001] Embodiments of the present invention relate to display technologies, and in particular, to a display device. Background technique [0002] Due to the uniqueness and invariance of each person's fingerprint, the technology of using fingerprint as identification has developed rapidly in recent years. For example, in the field of mobile phones, as more and more people have requirements for narrow borders and full screens of mobile phones, optical fingerprint recognition technology has become more and more widely used. Before operating the display device with the fingerprint recognition function, the user only needs to touch the fingerprint recognition module of the display device with a finger to perform authority verification, which simplifies the authority verification process. [0003] However, in the prior art, the light transmittance of the fingerprint identification area in the display device is relatively low, which results in darker images of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1333G02F1/13357G02B6/00G06K9/00
CPCG02F1/13338G02F1/133615G02F1/133606G02B6/0055G06V40/1324
Inventor 王雅涛
Owner XIAMEN TIANMA MICRO ELECTRONICS
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