US 11,901,376 B2
Display panel, manufacturing method thereof and displaying device
Zunqing Song, Beijing (CN); and Hao Liu, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Oct. 22, 2021, as Appl. No. 17/508,895.
Claims priority of application No. 202110239432.8 (CN), filed on Mar. 4, 2021.
Prior Publication US 2022/0285407 A1, Sep. 8, 2022
Int. Cl. H01L 27/12 (2006.01); G06V 40/13 (2022.01)
CPC H01L 27/1255 (2013.01) [G06V 40/1306 (2022.01); H01L 27/1248 (2013.01); H01L 27/1259 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display panel, comprising a plurality of display units, each of the display units having an active area for display and an induction area for identifying fingerprints, wherein the display unit comprises:
a substrate;
a planarization layer arranged on the substrate and comprising a first area and a second area, wherein the first area is opposite to the active area, and the second area is opposite to the induction area and is provided with a concave-convex structure;
a pixel unit arranged on the planarization layer and located in the first area; and
an induction electrode arranged on the planarization layer and covering a concave-convex surface of the concave-convex structure to extend along the concave-convex surface of the concave-convex structure, so as to improve capacitance with a finger of user in response that a fingerprint of the finger of the user covers the display panel, and output a signal so as to identify the fingerprint of the user through the output signal.