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. 14, 2026
Filed:
Jun. 07, 2022
Yungu (Gu'an) Technology Co., Ltd., Langfang, CN;
Xiaokang Zhou, Langfang, CN;
Zhenhua Lou, Langfang, CN;
Qiqi Qin, Langfang, CN;
Xiaocong Li, Langfang, CN;
Hongyu Wang, Langfang, CN;
Wenkai Chen, Langfang, CN;
Yungu (Gu'an) Technology Co., Ltd., Langfang, CN;
Abstract
A display panel includes: a substrate; a light emitting unit located on the substrate; and one or more combinational structure layers located on a side of the light emitting unit away from the substrate, each of the combinational structure layers includes a first structure layer, a second structure layer and a third structure layer, a refractive index of the first structure layer is greater than a refractive index of the second structure layer, and the refractive index of the second structure layer is greater than a refractive index of the third structure layer.