US 12,002,911 B2
Passive three-dimensional LED display and method for fabrication thereof
Shihfeng Shao, Milpitas, CA (US); and Chang Hung Pan, Milpitas, CA (US)
Assigned to SCT LTD., Grand Cayman (KY)
Filed by SCT LTD., Grand Cayman (KY)
Filed on Jan. 25, 2023, as Appl. No. 18/159,203.
Application 18/159,203 is a division of application No. 16/951,677, filed on Nov. 18, 2020, granted, now 11,600,753.
Prior Publication US 2023/0163263 A1, May 25, 2023
Int. Cl. H01L 33/58 (2010.01); G02B 5/30 (2006.01); H01L 25/075 (2006.01); H01L 33/62 (2010.01)
CPC H01L 33/58 (2013.01) [G02B 5/3025 (2013.01); H01L 25/0753 (2013.01); H01L 33/62 (2013.01); H01L 2933/0058 (2013.01); H01L 2933/0066 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method to manufacture an LED display panel, comprising:
cutting a film of first circular polarizer to obtain a plurality of first circular polarizer units;
cutting a film of second circular polarizer to obtain a plurality of second circular polarizer units, wherein the first circular polarizer and the second circular polarizer are of opposite circular polarizations;
attaching each of the plurality of first circular polarizer units to each of a first plurality of LED chips/packages to form a plurality of first light emitting devices so that each first light emitting device has a first circular polarizer unit attached thereto;
attaching each of the plurality of second circular polarizer units to each of a second plurality of LED chips/packages to form a plurality of second light emitting devices so that each second light emitting device has a second circular polarizer unit attached thereto,
wherein the plurality of first light emitting devices and the plurality of second light emitting devices are disposed on a substrate.