US 11,947,236 B2
High contrast transparent display with automatic shading
Jonglee Park, Troy, MI (US); Chris Wisniewski, Oshawa (CA); and Jarvis Chau, Markham (CA)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Apr. 27, 2021, as Appl. No. 17/241,997.
Prior Publication US 2022/0342270 A1, Oct. 27, 2022
Int. Cl. G02F 1/166 (2019.01); B60K 35/00 (2006.01); G02B 27/01 (2006.01); G02F 1/1685 (2019.01); H01L 25/075 (2006.01); H01L 33/62 (2010.01)
CPC G02F 1/166 (2019.01) [B60K 35/00 (2013.01); G02B 27/0101 (2013.01); G02F 1/1685 (2019.01); H01L 25/0753 (2013.01); H01L 33/62 (2013.01); B60K 2370/1529 (2019.05); B60K 2370/332 (2019.05); B60K 2370/52 (2019.05); B60K 2370/785 (2019.05); H01L 2933/0066 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a first transparent layer;
a second transparent layer;
a spacer arranged between the first transparent layer and the second transparent layer to define a first region and a second region;
a first plurality of electrodes arranged on an inner surface of the first transparent layer in the first region;
a plurality of light emitting diodes (LEDs) connected to the first plurality of electrodes in the first region;
a second plurality of electrodes arranged on the inner surface of the first transparent layer in the second region;
a third plurality of electrodes arranged on the inner surface of the second transparent layer in the second region; and
particles arranged in the second region between the second plurality of electrodes and the third plurality of electrodes.