US 11,921,919 B2
Electronic device
Yoshiyuki Kurokawa, Kanagawa (JP); Hiromichi Godo, Kanagawa (JP); Kouhei Toyotaka, Kanagawa (JP); Kazuki Tsuda, Kanagawa (JP); Satoru Ohshita, Kanagawa (JP); and Hidefumi Rikimaru, Kanagawa (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken (JP)
Filed by SEMICONDUCTOR ENERGY LABORATORY CO., LTD., Atsugi (JP)
Filed on Feb. 15, 2022, as Appl. No. 17/671,905.
Claims priority of application No. 2021-024762 (JP), filed on Feb. 19, 2021.
Prior Publication US 2022/0270548 A1, Aug. 25, 2022
Int. Cl. G06F 3/01 (2006.01); G02B 27/01 (2006.01); G09G 3/00 (2006.01); G09G 3/3225 (2016.01); H10K 59/121 (2023.01); H01L 27/12 (2006.01); H01L 29/786 (2006.01)
CPC G06F 3/013 (2013.01) [G02B 27/0172 (2013.01); G09G 3/002 (2013.01); G09G 3/3225 (2013.01); H10K 59/1213 (2023.02); G02B 2027/0178 (2013.01); G09G 2354/00 (2013.01); G09G 2360/14 (2013.01); H01L 27/1225 (2013.01); H01L 27/1251 (2013.01); H01L 27/1255 (2013.01); H01L 29/78648 (2013.01); H01L 29/78651 (2013.01); H01L 29/7869 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A wearable device comprising:
a housing; and
a display device,
wherein the display device comprises a first layer, a second layer, and a third layer,
wherein the first layer, the second layer, and the third layer are provided in different layers,
wherein the first layer comprises a driver circuit and an arithmetic circuit,
wherein the second layer comprises a pixel circuit and a cell array,
wherein the third layer comprises a light-receiving device and a light-emitting device,
wherein the light-emitting device is configured to emit light of a first wavelength,
wherein the light-receiving device is configured to convert light of the first wavelength into an electric signal,
wherein the pixel circuit is configured to control light emission of the light-emitting device,
wherein the driver circuit is configured to control the pixel circuit, and
wherein the arithmetic circuit is configured to perform arithmetic processing on the basis of first data corresponding to a current output from the light-receiving device and second data corresponding to a potential held in the cell array in order to detect motion around an eyeball of a user.