Patent ID: 11921919
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
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.