公开(公告)号：US12073789B2

公开(公告)日：2024-08-27

申请号：US18206196

申请日：2023-06-06

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi Toya ,  Takehiko Kubota

IPC: G09G3/32 ,  G09G3/3208 ,  G09G3/3241 ,  G09G3/3291 ,  H01L27/12 ,  H10K59/121 ,  H10K59/123 ,  H10K59/131 ,  G09G3/3233

CPC classification number: G09G3/3241 ,  G09G3/3208 ,  G09G3/3291 ,  H01L27/124 ,  H01L27/1255 ,  H10K59/1213 ,  H10K59/123 ,  H10K59/131 ,  G09G3/3233 ,  G09G2300/0408 ,  G09G2300/0439 ,  G09G2300/0465 ,  G09G2300/0861 ,  G09G2310/0289 ,  G09G2310/0297

Abstract: An electro-optical device includes one or more control lines that include a scanning line, a data line and a pixel circuit. The pixel circuit has a drive transistor, a write-in transistor with a gate which is electrically connected to the scanning line, a light-emitting element that emits light at a brightness that depends on the size of a current that is supplied through the drive transistor, and a control line which overlaps the gate of the drive transistor when viewed from a direction that is perpendicular to a surface of a substrate on which the pixel circuit is formed is included in the one or more control lines.

公开(公告)号：US11423838B2

公开(公告)日：2022-08-23

申请号：US17168421

申请日：2021-02-05

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi Toya ,  Takehiko Kubota

IPC: G09G3/32 ,  G09G3/3241 ,  G09G3/3208 ,  H01L27/12 ,  G09G3/3291 ,  H01L27/32 ,  G09G3/3233

Abstract: An electro-optical device includes one or more control lines that include a scanning line, a data line and a pixel circuit. The pixel circuit has a drive transistor, a write-in transistor with a gate which is electrically connected to the scanning line, a light-emitting element that emits light at a brightness that depends on the size of a current that is supplied through the drive transistor, and a control line which overlaps the gate of the drive transistor when viewed from a direction that is perpendicular to a surface of a substrate on which the pixel circuit is formed is included in the one or more control lines.

公开(公告)号：US11172853B2

公开(公告)日：2021-11-16

申请号：US16305573

申请日：2017-05-18

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuiga Hamade ,  Tetsuji Fujita ,  Takashi Toya ,  Yasunori Koide

IPC: A61B5/1455 ,  A61B5/145

Abstract: A technique restrains degradation of a light emitting element. A biological information acquisition device acquires light receiving result by causing a light receiving unit to receive light emitted by a light emitting unit serving as a measurement-purpose light emitting unit, and acquires biological information by using the light receiving result. The light is emitted from the light emitting unit so as to acquire the light receiving result for one time, while a plurality of light emitting patterns are switched between a light emitting element which emits the light and a light emitting element which does not emit the light in a plurality of the light emitting elements.

公开(公告)号：US10957254B2

公开(公告)日：2021-03-23

申请号：US16734648

申请日：2020-01-06

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi Toya ,  Takehiko Kubota

IPC: G09G3/32 ,  G09G3/3241 ,  G09G3/3208 ,  H01L27/12 ,  G09G3/3291 ,  H01L27/32 ,  G09G3/3233

Abstract: An electro-optical device includes one or more control lines that include a scanning line, a data line and a pixel circuit. The pixel circuit has a drive transistor, a write-in transistor with a gate which is electrically connected to the scanning line, a light-emitting element that emits light at a brightness that depends on the size of a current that is supplied through the drive transistor, and a control line which overlaps the gate of the drive transistor when viewed from a direction that is perpendicular to a surface of a substrate on which the pixel circuit is formed is included in the one or more control lines.

公开(公告)号：US10357189B2

公开(公告)日：2019-07-23

申请号：US15422768

申请日：2017-02-02

Applicant: Seiko Epson Corporation

Inventor： Yasunori Koide ,  Tetsuji Fujita ,  Takashi Toya

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1455

Abstract: A biological information acquisition device includes: a light emitting unit which casts light on a living body; a plurality of light receiving units which receives the light transmitted through the living body; and a control unit which controls the light emitting unit and the light receiving units. The control unit causes the light emitting unit to emit light as a measurement light emitting unit, causes a plurality of measurement light receiving units spaced apart from the measurement light emitting unit by a first distance, of the plurality of light receiving units, to receive the light cast from measurement light emitting unit and thus acquires a plurality of light receiving results, and acquires biological information using a first light receiving result with a highest light reception intensity and a second light receiving result with a lowest light reception intensity, of the plurality of light receiving results.

公开(公告)号：US09710692B2

公开(公告)日：2017-07-18

申请号：US15145070

申请日：2016-05-03

Applicant: Seiko Epson Corporation

Inventor： Takashi Toya ,  Mitsutoshi Miyasaka

IPC: G06K9/00

CPC classification number: G06K9/0004

Abstract: An imaging device includes: an illumination portion which includes a light-transmitting transmission region and a light-shielding non-transmission region, has a plurality of simultaneous light-emitting elements that have a light-transmitting property, include a plurality of first light-emitting elements in which turning-on and turning-off are simultaneously controlled and a plurality of second light-emitting elements in which turning-on and turning-off are simultaneously controlled, and are provided in the transmission region, and has a plurality of individual light-emitting elements in which turning-on and turning-off are individually controlled and which are provided in the non-transmission region; an imaging portion which receives light that is reflected from a subject illuminated by the illumination portion and is transmitted through the transmission region; and a switching portion which selectively turns on the plurality of first light-emitting elements and the plurality of second light-emitting elements in a first period in which the plurality of individual light-emitting elements are turned off, and turns off the plurality of simultaneous light-emitting elements in a second period in which the plurality of individual light-emitting elements are turned on.