US 12,074,265 B2
Light-shielding frame and LED display device
Shijie Li, Shenzhen (CN); Xiaofeng Tang, Shenzhen (CN); Zeda Tang, Shenzhen (CN); and Yi Li, Shenzhen (CN)
Assigned to APPOTRONICS CORPORATION LIMITED, Shenzhen (CN)
Filed by APPOTRONICS CORPORATION LIMITED, Guangdong (CN)
Filed on Jan. 21, 2022, as Appl. No. 17/648,663.
Application 17/648,663 is a continuation of application No. PCT/CN2020/103582, filed on Jul. 22, 2020.
Claims priority of application No. 201910665832.8 (CN), filed on Jul. 23, 2019.
Prior Publication US 2022/0149253 A1, May 12, 2022
Int. Cl. H01L 33/58 (2010.01); H01L 25/075 (2006.01)
CPC H01L 33/58 (2013.01) [H01L 25/0753 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A light-shielding frame, comprising a shielding wall and hollow grid cells enclosed by the shielding wall and arranged in a matrix, wherein the shielding wall comprises a first shielding wall and a second shielding wall that are stacked along a light-emitting direction of the grid cells, and each of the grid cells comprises a first grid cell portion enclosed by the first shielding wall and a second grid cell portion enclosed by the second shielding wall; the first shielding wall has a thickness that decreases from an end close to the second shielding wall to an end away from the second shielding wall to form a first draft angle; the second shielding wall has a thickness that decreases from an end close to the first shielding wall to an end away from the first shielding wall to form a second draft angle; and the first shielding wall and the second shielding wall have a same thickness at a connection position between the first shielding wall and the second shielding wall.