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:
Oct. 21, 2025
Filed:
Oct. 13, 2022
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Wen-Chien Miao, Hsinchu, TW;
Hsin Chiang, Hsinchu, TW;
Fu-He Hsiao, Hsinchu, TW;
Chun-Yen Peng, Hsinchu, TW;
Shih-Chen Chen, Hsinchu, TW;
Hao-Chung Kuo, Hsinchu, TW;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Abstract
A micro LED display device includes a light emitting layer, a color conversion layer located on a light emitting surface of the light emitting layer, and a Bragg reflection element located on the color conversion layer. The Bragg reflection element includes a plurality of layer pairs. Each of the layer pairs includes at least one first layer and at least one second layer alternately stacked. The layer pairs include a top layer pair, a bottom layer pair and a plurality of middle layer pairs between the top layer pair and the bottom layer pair. A thickness of the first layer of each of the middle layer pairs is smaller than a thickness of the second layer of each of the middle layer pairs. A refractive index of the first layer is greater than a refractive index of the second layer.