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Display device and fingerprint identification method

A fingerprint identification and display device technology, which is applied in identification devices, character and pattern recognition, and acquisition/organization of fingerprints/palmprints. problem, to achieve the effect of improving the accuracy of fingerprint recognition

Active Publication Date: 2019-12-03
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

However, due to the limitation of process conditions, the size of the fingerprint sensor is limited to a certain extent, so that the number of fingerprint sensors per unit area cannot be further increased, which is not conducive to the realization of high-resolution fingerprint recognition function, and is not conducive to improving the fingerprint recognition obtained. fineness of

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  • Display device and fingerprint identification method
  • Display device and fingerprint identification method
  • Display device and fingerprint identification method

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. And in the case of no conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention be...

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Abstract

The invention discloses a display device and a fingerprint identification method, wherein each fingerprint identification unit comprises at least two photosensitive areas for receiving light of different colors, and the color of the light received by one photosensitive area corresponds to the light emitting color of a light emitting sub-pixel of one color. When fingerprint identification is carried out, the light-emitting sub-pixels with the same color as the light received by each photosensitive area can be controlled to be lightened, so that the photosensitive area with one color correspondingly receives the light reflected by a finger once and generates an electric signal once. One fingerprint identification unit is provided with N photosensitive areas, so that one fingerprint identification unit can receive light reflected by N fingers, and N electric signals can be generated. In this way, under the condition of not additionally adding a fingerprint identification unit, only one fingerprint identification unit is arranged, the effect of N times of the fingerprint identification unit can be achieved, the PPI of fingerprint identification can be improved, and then the fingerprintidentification precision is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display device and a fingerprint identification method. Background technique [0002] Fingerprint identification technology has been widely used in smart phones, time attendance machines, security access control, and port customs clearance. Generally, a fingerprint sensor is used to receive light reflected from a finger and convert the light into an electrical signal. Therefore, the fingerprint information of the finger can be determined according to the converted electrical signal. However, due to the limitation of process conditions, the size of the fingerprint sensor is limited to a certain extent, so that the number of fingerprint sensors per unit area cannot be further increased, which is not conducive to the realization of high-resolution fingerprint recognition function, and is not conducive to improving the fingerprint recognition obtained. of fineness. Contents of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/33G06K9/00G06V10/141G06V10/147
CPCG09F9/33G06V40/1318H10K59/65G09G3/3225G06V10/141G06V10/147H10K59/60
Inventor 曾洋卢峰虞豪驰苏晓越
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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