A display panel and display device
A display panel and plane technology, applied in character and pattern recognition, instruments, computing, etc., can solve the problems of reducing panel transmittance, loss of panel aperture ratio, etc., to improve fingerprint recognition ability, fingerprint recognition signal enhancement, and enhanced strength Effect
Active Publication Date: 2022-07-15
XIAMEN TIANMA MICRO ELECTRONICS
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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.
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[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 herein 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, the drawings only show some but not all structures related to the present invention.
[0028] figure 1 It is a schematic diagram of the fingerprint recognition principle of the existing liquid crystal display panel. figure 1 , as described in the background art section, in the existing liquid crystal display panel, the light emitted by the backlight light source passes through the color filter substrate and is then reflected by the fingerprint of the finger, and only part of the light can be smoothly reflected on the photosensitive element 22 to realize fingerprint recognition. . However, most of the light reflect...
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Embodiments of the present invention disclose a display panel and a display device. The display panel includes: a first base substrate; a fingerprint identification unit, the fingerprint identification unit includes a collimation hole unit and a photosensitive element, the collimation hole unit includes at least one light-shielding portion, and the light-shielding portion includes a first hollow area , in the direction perpendicular to the plane of the first base substrate, the first hollow area and the photosensitive element at least partially overlap; the reflection part, the reflection part is located in the light shielding part away from the photosensitive element One side of the element; the reflection part includes a second hollow area, and in a direction perpendicular to the plane of the first base substrate, the second hollow area and the photosensitive element at least partially overlap. The embodiment of the present invention solves the problem that part of the finger reflected light in the existing display panel will be absorbed and lost and the fingerprint identification signal is weak, realizes the enhancement of the fingerprint identification signal received by the photosensitive element, and improves the fingerprint identification capability.
Description
technical field [0001] Embodiments of the present invention relate to the field of display technologies, 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 function have gradually spread into people's lives. Fingerprint recognition is widely used in the display screens of electronic devices such as mobile phones, personal digital assistants, and computers. In the current display panel, the fingerprint recognition technology and the display technology are usually combined, so that the display panel not only has a display function, but also can perform fingerprint recognition, which improves the security performance of the information in the display device. [0003] The fingerprint recognition process of the display panel is usually that when the finger touches the glass surface, the fingerprint ridge is in contact with the glass, and the fingerp...
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IPC IPC(8): G06V40/13G02F1/1333H01L27/32
CPCG02F1/13338G06V40/1324H10K59/00
Inventor 张军郑静安陈国照
Owner XIAMEN TIANMA MICRO ELECTRONICS