US 12,178,076 B2
Light emitting apparatus
Hiromasa Tsuboi, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 22, 2021, as Appl. No. 17/532,955.
Claims priority of application No. 2020-196896 (JP), filed on Nov. 27, 2020.
Prior Publication US 2022/0173190 A1, Jun. 2, 2022
Int. Cl. H10K 59/121 (2023.01); H10K 59/131 (2023.01)
CPC H10K 59/1213 (2023.02) [H10K 59/1216 (2023.02); H10K 59/131 (2023.02)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a pixel that includes a current path including a light emitting element and a first transistor, a second transistor, and a third transistor connected to a signal wire, wherein
one of a source region and a drain region of the second transistor is connected to one node of the light emitting element and the other of the source region and the drain region of the second transistor is connected to a first power supply,
one of a source region and a drain region of the third transistor is connected to a gate electrode of the first transistor,
an isolation portion is disposed between a first conductivity type first diffusion region that makes up one of the source region and the drain region of the second transistor and a first conductivity type second diffusion region that makes up one of the source region and the drain region of the third transistor, and
a depth of the first diffusion region is greater than a depth of the second diffusion region.