The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2023
Filed:
Dec. 16, 2020
Seeya Optronics Co., Ltd., Shanghai, CN;
Zhongshou Huang, Shanghai, CN;
SEEYA OPTRONICS CO., LTD., Shanghai, CN;
Abstract
An OLED display panel comprises a pixel array and a substrate. The pixel array includes a plurality of pixels, each of the pixel includes multiple sub-pixels. Each of the sub-pixels includes multiple layers stacked in processing sequence on the substrate, a driving circuit layer, an uneven surface layer, and a light-emitting layer. The uneven surface layer includes a plurality of concave-convex structures. In each pixel, there are at least two sub-pixels corresponding to different colors respectively, and possessing different numbers of concave-convex structures, respectively. Moreover, those sub-pixels corresponding to a same color in the pixel array possess a same number of concave-convex structures. The light-emitting layer conformal to the concave-convex structures has increased surface area, so that the effective light-emitting area of the display panel is increased and the brightness of the OLED display panel is enhanced accordingly.