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Display panel and display device

A display panel, flat technology, applied in character and pattern recognition, instruments, semiconductor devices, etc., can solve the problems of reducing panel transmittance, loss of panel aperture ratio, etc., to improve fingerprint recognition ability, fingerprint recognition signal enhancement, enhancement the effect of strength

Active Publication Date: 2019-10-08
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the area of ​​the collimation hole to enhance the fingerprint identification signal can increase the strength of the received fingerprint identification signal to a certain extent, but it will lose the aperture ratio of the panel and reduce the overall transmittance of the panel.

Method used

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  • Display panel and display device
  • Display panel and display device

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Embodiment Construction

[0027] 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.

[0028] figure 1 It is a schematic diagram of the fingerprint identification principle of the existing liquid crystal display panel, refer to figure 1 , as mentioned in the background technology section, in the existing liquid crystal display panel, the light emitted by the backlight light source passes through the color filter substrate and is reflected by the fingerprint of the finger, and only part of the light can be smoothly reflected to the photosensitive element 22 to realize fingerprint recognition . Howe...

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Abstract

The embodiment of the invention discloses a display panel and a display device. The display panel includes a first substrate; a fingerprint identification unit which comprises a collimation hole unitand a light sensing element, wherein the collimation hole unit comprises at least one light shielding part, the light shielding part comprises a first hollow area, and the first hollow area and the light sensing element are at least partially overlapped in the direction perpendicular to the plane where the first substrate is located; a reflecting part which is positioned at one side, far away fromthe light sensing element, of the shading part and comprises a second hollow area, wherein the second hollow area and the light sensing element are at least partially overlapped in the direction perpendicular to the plane where the first substrate is located. According to the embodiment of the invention, the problems that part of finger reflected light in the existing display panel is absorbed and lost and the fingerprint identification signal is weak, are solved, the enhancement of the fingerprint identification signal received by the light sensing element is realized, and the fingerprint identification capability is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a display panel and a display device. Background technique [0002] With the rapid development of display technology, display panels with fingerprint recognition functions have gradually spread in people's lives, and fingerprint recognition is widely used in display screens of electronic devices such as mobile phones, personal digital assistants, and computers. In current display panels, fingerprint identification technology is usually combined with display technology, so that the display panel not only has a display function, but also can perform fingerprint identification, which improves the security performance of information in the display device. [0003] The fingerprint identification process of the display panel is usually that when the finger touches the glass surface, the fingerprint ridges are in contact with the glass, and the fingerprint va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G02F1/1333H01L27/32
CPCG02F1/13338G06V40/1324H10K59/00
Inventor 张军郑静安陈国照
Owner XIAMEN TIANMA MICRO ELECTRONICS
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