A display panel, its driving method, and a display device
A display panel and plane technology, which is applied to static indicators, instruments, and fingerprint/palmprint acquisition/arrangement, etc. It can solve the problem of low fingerprint recognition accuracy of fingerprint recognition modules, improve fingerprint recognition accuracy, and reduce the number of noise points , the effect of reducing the amount of noise
Active Publication Date: 2021-02-02
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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Problems solved by technology
[0003] In the existing display device with fingerprint identification function, each frame of fingerprint image collected by the fingerprint identification module is at least affected by finger signal light and sub-pixel noise, resulting in low accuracy of fingerprint identification by the fingerprint identification module
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[0041] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through implementation with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the embodiment of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0042] The inventor found through experiments that there are noise points in the fingerprint image of the existing display device, which affects the fingerprint recognition accuracy. refer to figure 1 Shown is a schematic diagram of a conventional display device. Such as figure 1 As shown, the display device at least includes a fingerprint recognition...
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The embodiment of the present invention discloses a display panel, a driving method thereof, and a display device. The display panel includes: a light-shielding layer, a light-emitting device layer, a touch function layer, a fingerprint recognition module located on the side of the light-shielding layer away from the light-emitting device layer, and a light-shielding layer. The layer includes a plurality of imaging holes, the light emitting device layer includes a plurality of light emitting devices, and the light emitting device includes a plurality of first light emitting devices and a plurality of second light emitting devices; the orthographic projection of the first light emitting device on the plane where the light shielding layer is located and the imaging hole The distance is greater than the distance between the orthographic projection of the second light-emitting device on the plane where the light-shielding layer is located and the distance from the imaging pinhole; the first detection stage: the first light-emitting device emits light, the second light-emitting device does not emit light, and the fingerprint recognition module collects the first fingerprint image; The second detection stage: the second light-emitting device emits light, and the fingerprint recognition module collects the second fingerprint image; synthesizes the first fingerprint image and the second fingerprint image to obtain the fingerprint image. The embodiment of the present invention improves the fingerprint identification accuracy.
Description
technical field [0001] Embodiments of the present invention relate to display technologies, and in particular, to a display panel, a driving method thereof, and a display device. Background technique [0002] Fingerprints are inherent to each person and are unique. With the development of technology, a variety of display devices with fingerprint recognition functions appear on the market, such as mobile phones, tablet computers, and smart wearable devices. In this way, before operating the display device with fingerprint recognition function, the user only needs to touch the fingerprint recognition module of the display device with his finger to perform authority verification, which simplifies the authority verification process. [0003] In the existing display device with fingerprint identification function, each frame of fingerprint image collected by the fingerprint identification module is at least affected by finger signal light and sub-pixel noise, resulting in low ac...
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IPC IPC(8): G06K9/00H01L27/32
CPCG06V40/1318H10K59/00H10K59/40G09G2300/0452G09G3/3208G09G2320/0295G06F3/042G06V40/1335
Inventor 曾洋卢峰虞豪驰苏晓越
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD