Display panel, driving method thereof and display device
A display panel and plane technology, which is applied to static indicators, instruments, and fingerprint/palmprint acquisition/arranging, etc. It can solve the problem of low fingerprint recognition accuracy of fingerprint recognition modules, improve fingerprint recognition accuracy and ensure integrity , the effect of reducing the amount of noise
Active Publication Date: 2019-08-27
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 invention discloses a display panel, a driving method thereof and a display device. The display panel comprises a shading layer, a light-emitting device layer, a touch function layer and a fingerprint recognition module located on the side, away from the light-emitting device layer, of the shading layer; the shading layer comprises a plurality of imaging small holes, the light-emitting device layer comprises a plurality of light-emitting devices, and the light-emitting devices comprise a plurality of first light-emitting devices and a plurality of second light-emitting devices; the distance between the orthographic projection of the first light-emitting devices on the plane where the shading layer is located and the imaging small holes is larger than the distance between the orthographic projection of the second light-emitting devices on the plane where the shading layer is located and the imaging small holes. In the first detection stage, the first light-emittingdevices emit light, the second light-emitting devices do not emit light, and the fingerprint recognition module collects a first fingerprint image; in the second detection stage, the second light-emitting devices emit light, and the fingerprint recognition module collect a second fingerprint image; and the first fingerprint image and the second fingerprint image are synthesized to obtain a fingerprint image. According to the embodiment of the invention, the fingerprint identification precision is improved.
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
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