US 11,935,985 B2
Micro light-emitting diode display panel
Sheng-Yuan Sun, MiaoLi County (TW); Loganathan Murugan, MiaoLi County (TW); and Po-Wei Chiu, MiaoLi County (TW)
Assigned to PlayNitride Display Co., Ltd., MiaoLi County (TW)
Filed by PlayNitride Display Co., Ltd., MiaoLi County (TW)
Filed on Aug. 23, 2021, as Appl. No. 17/408,498.
Claims priority of application No. 110104124 (TW), filed on Feb. 4, 2021.
Prior Publication US 2022/0246794 A1, Aug. 4, 2022
Int. Cl. H01L 33/10 (2010.01); H01L 25/075 (2006.01); H01L 27/15 (2006.01)
CPC H01L 33/10 (2013.01) [H01L 25/0753 (2013.01); H01L 27/156 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A micro light-emitting diode display panel, comprising:
a substrate, comprising a plurality of pixel regions arranged in an array;
a first micro light-emitting diode, disposed on one of the pixel regions of the substrate;
a first light-shielding wall, disposed on the substrate and located completely around the first micro light-emitting diode;
a second micro light-emitting diode, disposed on the one of the pixel regions of the substrate and located beside the first micro light-emitting diode;
a second light-shielding wall, disposed on the substrate and located completely around the second micro light-emitting diode, wherein a light wavelength of the first micro light-emitting diode is different from a light wavelength of the second micro light-emitting diode, and a height of the first light-shielding wall is smaller than a height of the second light-shielding wall;
a first reflector, located within the first light-shielding wall and arranged around the first micro light-emitting diode, and having a first inclined surface inclined toward the first micro light-emitting diode;
a first transparent insulating layer, filled between the first micro light-emitting diode and the first inclined surface;
a second reflector, located within the second light-shielding wall and arranged around the second micro light-emitting diode, and having a second inclined surface inclined toward the second micro light-emitting diode; and
a second transparent insulating layer, filled between the second micro light-emitting diode and the second inclined surface, wherein a refractive index of the first transparent insulating layer is smaller than a refractive index of the first micro light-emitting diode, and a refractive index of the second transparent insulating layer is smaller than a refractive index of the second micro light-emitting diode,
wherein the first transparent insulating layer directly contacts a side wall of the first micro light-emitting diode, the first reflector directly contacts the first transparent insulating layer, the second transparent insulating layer directly contacts a side wall of the second micro light-emitting diode, and the second reflector directly contacts the second transparent insulating layer,
the first reflector is different and separated from the first light-shielding wall, the second reflector is different and separated from the second light-shielding wall.