A display device and its driving method

A technology of a display device and a driving method, which is applied in the direction of instruments, acquisition/organization of fingerprints/palmprints, electric solid devices, etc., can solve problems such as too fast life decay, achieve the goal of improving uniformity, uniform light dispersion, and improving detection accuracy Effect

CN108766987BActive Publication Date: 2021-06-04WUHAN TIANMA MICRO ELECTRONICS CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-06-04

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Abstract

Embodiments of the present invention provide a display device and a driving method thereof, which relate to the field of display technology, and are used to solve the problem in the prior art that the lifetime of light-emitting elements in sub-pixels in the fingerprint recognition area decays too quickly, and effectively improve the uniformity of display brightness. sex. The display device includes a display panel, the display panel includes a base substrate, at least part of the display area of ​​the base substrate is a fingerprint recognition area; a plurality of sub-pixels are arranged in the display area, and each sub-pixel includes a first light-emitting element; the back of the base substrate One side of the first light-emitting element is provided with a plurality of fingerprint identification units, and each fingerprint identification unit includes a second light-emitting element and at least one light sensor; wherein, the second light-emitting element is a micro-light-emitting diode, and the second light-emitting element and light The orthographic projection of the sensing sensor on the base substrate is located in the fingerprint identification area. The display device described above is used for displaying a screen.
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Description

Technical field

[0001] The present invention relates to the field of display technology, in particular to a display device and a driving method thereof.

Background technique

[0002] For the display panel with fingerprint recognition function, in order to better realize the full screen design and avoid the fingerprint recognition area from occupying the non-display area space, at present, the under-screen fingerprint technology can be used to reuse part of the display area as the fingerprint recognition area , and the light emitted by the sub-pixels in the fingerprint identification area is used as the light used for fingerprint identification.

[0003] When performing fingerprint identification, it is usually necessary for the light-emitting elements in the sub-pixels in the fingerprint identification area to emit light with higher brightness to improve the detection accuracy, but in this way, the sub-pixels in the fingerprint identification area need to emit high-brigh...

Examples

Embodiment Construction

[0022] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0025] It should be understood that the term "an...