US 12,295,191 B2
Display device
Hung-Cheng Lin, New Tapei (TW); Hung-Kuang Hsu, Taipei (TW); and Hua-Chen Hsu, Zhubei (TW)
Assigned to VISIONLABS CORPORATION, Taipei (TW)
Filed by Visionlabs Corporation, Taipei (TW)
Filed on Sep. 16, 2021, as Appl. No. 17/477,357.
Claims priority of application No. 109132327 (TW), filed on Sep. 18, 2020.
Prior Publication US 2022/0093834 A1, Mar. 24, 2022
Int. Cl. H01L 33/60 (2010.01); H01L 25/075 (2006.01); H01L 33/50 (2010.01); H10H 20/851 (2025.01); H10H 20/856 (2025.01)
CPC H10H 20/856 (2025.01) [H01L 25/0753 (2013.01); H10H 20/851 (2025.01)] 10 Claims
OG exemplary drawing
 
1. A display device includes a plurality of pixels arranged in a matrix, wherein at least one of the pixels comprising:
a circuit substrate including at least one transistor;
at least one light emitting element on the circuit substrate and electrical connects to the at least one transistor, the at least one light emitting element is provided to emit a first light with a first wavelength;
a frame layer on the circuit substrate and includes a wall structure and at least one cavity surrounded by the wall structure, wherein the at least one light emitting element is in the at least one cavity; and
a wavelength conversion layer in the at least one cavity and over the least one light emitting element to convert the first light to a second light;
wherein a lower side-surface of the at least one cavity having a first inclination angle and an upper side-surface of the at least one cavity having a second inclination angle, and the second inclination angle is greater than the first inclination angle.