Display panel and display device
A display panel and display area technology, applied in the direction of instruments, electrical components, circuits, etc., can solve the problems of limited fingerprint recognition accuracy, limited light intensity of point light sources, and limited fingerprint image area, so as to improve accuracy, Enhance light intensity, increase the effect of area
Active Publication Date: 2020-06-26
BOE TECH GRP CO LTD
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Problems solved by technology
[0004] In view of the shortcomings of the existing methods, this application proposes a display panel and a display device to solve the problem of fingerprint recognition accuracy caused by the limitation of the light intensity of the point light source in the prior art, which makes the area of the obtained fingerprint image limited. limited technical issues
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[0039] The present application is described in detail below, and examples of embodiments of the present application are shown in the drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Also, detailed descriptions of known technologies will be omitted if they are not necessary to illustrate the features of the present application. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.
[0040] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be ...
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The embodiment of the invention provides a display panel and a display device. The display panel comprises a fingerprint recognition area located in a display area, and the display panel comprises a plurality of point light sources and a plurality of optical sensors which are located in the fingerprint recognition area; the point light source comprises display light-emitting units corresponding toa plurality of pixels and additional light-emitting units located among the display light-emitting units, the display light-emitting units are driven in a display stage for image display, and the display light-emitting units and the additional light-emitting units are driven in a fingerprint detection stage for fingerprint identification; the optical sensor is located on the opposite side of thelight-emitting side of the display light-emitting unit and configured to collect fingerprint images in the fingerprint recognition stage. According to the embodiment, the additional light-emitting units are arranged between the display light-emitting units, and the light intensity of the point light source can be enhanced under the condition that the number of pixels included in the point light source is not increased, so that the area of the fingerprint image is increased, and the fingerprint identification accuracy is improved.
Description
technical field [0001] The present application relates to the field of display technology, and in particular, the present application relates to a display panel and a display device. Background technique [0002] With the development of technology and the increasing diversification of user performance requirements for display panels, it has become a trend to integrate fingerprint recognition functions into display panels. The fingerprint recognition principle of the display panel with fingerprint recognition function is: when the finger touches the display panel, the light emitted by the organic light-emitting device passes through the cover to illuminate the texture of the fingerprint, and the reflected light of the fingerprint passes through the screen and returns to the optical sensor and is captured by the optical sensor. Acquisition, and finally form a fingerprint image for identification. [0003] In the prior art, under the condition that the performance of the optic...
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IPC IPC(8): G06K9/00H01L27/32
CPCG06V40/1318H10K59/60H10K59/65
Inventor 王雷贾鹏王海生丁小梁李亚鹏
Owner BOE TECH GRP CO LTD