US 12,455,446 B2
Display device with light emitting device and light sensing device in one layer
Shunpei Yamazaki, Tokyo (JP); and Takayuki Ikeda, Kanagawa (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Appl. No. 18/277,180
Filed by SEMICONDUCTOR ENERGY LABORATORY CO., LTD., Atsugi (JP)
PCT Filed Feb. 14, 2022, PCT No. PCT/IB2022/051272
§ 371(c)(1), (2) Date Aug. 14, 2023,
PCT Pub. No. WO2022/180481, PCT Pub. Date Sep. 1, 2022.
Claims priority of application No. 2021-030746 (JP), filed on Feb. 26, 2021.
Prior Publication US 2024/0118548 A1, Apr. 11, 2024
Int. Cl. G02B 27/00 (2006.01); G02B 27/01 (2006.01); H10K 59/122 (2023.01); H10K 59/124 (2023.01); H10K 59/125 (2023.01); H10K 59/131 (2023.01); H10K 59/35 (2023.01); H10K 59/90 (2023.01)
CPC G02B 27/0093 (2013.01) [G02B 27/0172 (2013.01); G02B 27/0176 (2013.01); H10K 59/122 (2023.02); H10K 59/124 (2023.02); H10K 59/125 (2023.02); H10K 59/131 (2023.02); H10K 59/35 (2023.02); H10K 59/90 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A display device comprising a plurality of pixels and an insulator,
wherein the plurality of pixels each include a light-emitting device, a sensor device, and a circuit device,
wherein the light-emitting device and the sensor device are provided in a first layer,
wherein the circuit device is provided in a second layer,
wherein the light-emitting device includes a lower electrode, an upper electrode, and an electroluminescent (EL) third layer provided between the lower electrode and the upper electrode,
wherein the insulator comprises a portion between the third layer and an adjacent third layer,
wherein a side surface of the third layer of each light-emitting device of the plurality of pixels is in contact with the insulator,
wherein the sensor device is configured to detect light emitted from the light-emitting device,
wherein the first layer is provided over the second layer, and
wherein a level of a top surface of the insulator is greater than a level of the top surface of the third layer of the light-emitting device, and
wherein the insulator comprises a first insulator of inorganic material and a second insulator of organic material over a portion of the first insulator to planarize the top surface of the first insulator.