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:
Aug. 24, 2021
Filed:
Dec. 11, 2019
Boe Technology Group Co., Ltd., Beijing, CN;
Song Yang, Beijing, CN;
Ming Zhu, Beijing, CN;
Shiyu Zhang, Beijing, CN;
Zheng Fang, Beijing, CN;
Haijun Niu, Beijing, CN;
Ge Shi, Beijing, CN;
Yujie Liu, Beijing, CN;
Jiahui Han, Beijing, CN;
Yuyao Wang, Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
The present disclosure relates to a display panel, a display device, a reflective filter and a control method thereof. The reflective filter includes: a substrate; a first dielectric layer having a first refractive index, and located on one side of the substrate; a periodic array structure located on one side of the first dielectric layer away from the substrate and in direct contact with the first dielectric layer, wherein the periodic array structure includes a plurality of solid material patterns spaced apart by gaps; and a second dielectric layer covering the periodic array structure and filling the gaps, wherein a material of the second dielectric layer is a variable refractive index material; wherein the first refractive index of the first dielectric layer is lower than an equivalent refractive index nof the periodic array structure with the gaps filled with the variable refractive index material.