The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2025
Filed:
Feb. 24, 2022
Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;
Hiromichi Godo, Isehara, JP;
Yoshiyuki Kurokawa, Sagamihara, JP;
Kouhei Toyotaka, Isehara, JP;
Kazuki Tsuda, Atsugi, JP;
Satoru Ohshita, Hadano, JP;
Hidefumi Rikimaru, Tama, JP;
Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;
Abstract
An electronic device having an eye tracking function is provided. The electronic device includes a display device and an optical system. The display device includes a first light-emitting element, a second light-emitting element, a sensor portion, and a driver circuit portion. The sensor portion includes a light-receiving element. The first light-emitting element has a function of emitting infrared light or visible light. The second light-emitting element has a function of emitting light of a color different from that of light emitted from the first light-emitting element. When the first light-emitting element emits infrared light, the light-receiving element has a function of detecting the infrared light that is emitted from the first light-emitting element and reflected by an eyeball of a user. When the first light-emitting element emits visible light, the light-receiving element has a function of detecting the visible light that is emitted from the first light-emitting element and reflected by the eyeball of the user. The first light-emitting element and the second light-emitting element are placed in one layer. The layer where the first light-emitting element and the second light-emitting element are positioned overlaps with the sensor portion.