Patent ID: 11971621
Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. A display panel, comprising:
a backlight module;
an array substrate disposed on a light-exiting side of the backlight module;
a liquid crystal layer disposed on a side of the array substrate away from the backlight module;
a color filter plate disposed on a side of the liquid crystal layer away from the array substrate;
a touch substrate disposed on a side of the color filter plate away from the liquid crystal layer;
a fingerprint recognition unit disposed on a side of the color filter plate away from the touch substrate, wherein the fingerprint recognition unit comprises a photodiode and a plurality of shading bars, the photodiode is disposed on a side of the color filter plate away from the touch substrate, the plurality of shading bars are disposed on a side of a photosensitive surface of the photodiode, and an orthographic projection of the plurality of shading bars on the array substrate is within an orthographic projection of the photodiode on the array substrate; and
a transparent spacer layer disposed between the color filter plate and the liquid crystal layer,
wherein the backlight module is used to emit white light to irradiate a finger touching the touch substrate, the plurality of shading bars is used to block light partially reflected from the finger to the photodiode, and the fingerprint recognition unit is disposed between the color filter plate and the array substrate.