US 11,862,614 B2
Micro LED display device and manufacturing method thereof
Yu-Hung Lai, Miaoli County (TW); Yung-Chi Chu, Miaoli County (TW); Pei-Hsin Chen, Miaoli County (TW); Yi-Ching Chen, Miaoli County (TW); and Yi-Chun Shih, Miaoli County (TW)
Assigned to PlayNitride Display Co., Ltd., Miaoli County (TW)
Filed by PlayNitride Display Co., Ltd., Miaoli County (TW)
Filed on Dec. 16, 2020, as Appl. No. 17/123,140.
Claims priority of application No. 109139989 (TW), filed on Nov. 16, 2020.
Prior Publication US 2022/0157789 A1, May 19, 2022
Int. Cl. H01L 25/075 (2006.01); H01L 23/00 (2006.01); H01L 33/54 (2010.01); H01L 33/62 (2010.01); H01L 33/56 (2010.01); H01L 25/16 (2023.01)
CPC H01L 25/0753 (2013.01) [H01L 24/81 (2013.01); H01L 33/54 (2013.01); H01L 33/62 (2013.01); H01L 2224/81805 (2013.01); H01L 2924/12041 (2013.01); H01L 2933/005 (2013.01); H01L 2933/0066 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A micro LED display device, comprising:
a substrate, comprising:
a plurality of conductive pads disposed on the substrate; and
a plurality of conductive connecting portions, each of the conductive connecting portions correspondingly connected to one of the conductive pads;
a plurality of micro LED units, each of the micro LED units comprising:
a semiconductor epitaxial structure; and
two electrodes disposed on the semiconductor epitaxial structure, and each of the two electrodes connected to one of the conductive connecting portions adjacent to each other; and
a transparent insulation layer disposed on the substrate and covering the conductive pads, the conductive connecting portions and the micro LED units, and the transparent insulation layer filled between the two electrodes of each of the micro LED units;
wherein the transparent insulation layer relative to a surface on each of the semiconductor epitaxial structures is separated into a peripheral area and a covering area, the peripheral area is of a first thickness, the covering area is of a second thickness, and the first thickness is larger than the second thickness.