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:
May. 14, 2024
Filed:
Apr. 20, 2021
Chongqing Konka Photoelectric Technology Research Institute Co., Ltd., Chongqing, CN;
Ching-Chung Chen, Chongqing, CN;
Abstract
A light emitting diode (LED) structure includes a substrate, a first type semiconductor layer, a second type semiconductor layer, and a multi-quantum well light-emitting layer. The first type semiconductor layer is disposed on the substrate and has a patterned structure layer on a surface of the first type semiconductor layer away from the substrate. The multi-quantum well light-emitting layer is sandwiched between the patterned structure layer and the second type semiconductor layer and covers the patterned structure layer. The multi-quantum well light-emitting layer has multiple first thickness regions, multiple second thickness regions, and multiple transition regions. The first thickness region has a thickness greater than the second thickness region in a vertical direction from the first type semiconductor layer to the second type semiconductor layer. The transition region has a thickness that gradually decreases in a direction from the first thickness regions to the second thickness region.