公开(公告)号：US11355577B2

公开(公告)日：2022-06-07

申请号：US17003655

申请日：2020-08-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazunori Watanabe ,  Susumu Kawashima ,  Koji Kusunoki

IPC: H01L27/32 ,  G09G3/3233 ,  G09G3/3275 ,  G09G3/20

Abstract: A display device that can easily achieve higher definition is provided. The display device includes a pixel, a first wiring, and a second wiring. The pixel includes first to fourth transistors, a first capacitor, and a light-emitting element. One of a source and a drain of the first transistor is connected to the first wiring, and the other of the source and the drain of the first transistor is connected to a gate of the second transistor and to the first capacitor. The light-emitting element is connected to one of a source and a drain of the second transistor. The first wiring is supplied with a first data potential. The second wiring is supplied with a second data potential and a reset potential in different periods. The third transistor supplies the second data potential to the first capacitor. The fourth transistor supplies the reset potential to the light-emitting element.

公开(公告)号：US11296176B2

公开(公告)日：2022-04-05

申请号：US16633402

申请日：2018-07-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Kazunori Watanabe ,  Susumu Kawashima ,  Kei Takahashi

IPC: G09G3/32 ,  H01L27/32 ,  G06N3/04 ,  G06N3/063 ,  H01L25/065 ,  H01L27/15

Abstract: A novel display panel that is highly convenient or reliable is provided. A novel display device is provided. The display panel includes a display region, a first terminal region, and a second terminal region, and the first terminal region is provided not to block the display region and includes a region overlapping with the display region. The first terminal region includes a first group of terminals, and the first group of terminals includes a first terminal. The second terminal region includes a second group of terminals, and the second group of terminals includes a second terminal. The display region includes one group of pixels, another group of pixels, a scan line, and a signal line. The one group of pixels includes a pixel and is arranged in a row direction. The another group of pixels includes the pixel and is arranged in a column direction intersecting the row direction. The scan line is electrically connected to the one group of pixels. The signal line is electrically connected to the another group of pixels, and the signal line is electrically connected to the first terminal and the second terminal.

公开(公告)号：US11257457B2

公开(公告)日：2022-02-22

申请号：US16971137

申请日：2019-02-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu Kawashima ,  Kouhei Toyotaka ,  Koji Kusunoki ,  Kei Takahashi ,  Kentaro Hayashi

IPC: G09G5/10 ,  G09G3/36 ,  G09G3/34 ,  H01L29/786

Abstract: A display device operating at high speed is provided.
The display device includes a pixel provided with a first memory circuit, a second memory circuit, and a display unit, in which the first memory circuit and the second memory circuit are electrically connected to one electrode of the display unit. The operation of the display device includes a first period of writing first image data to the first memory circuit and writing second image data to the second memory circuit, a second period of supplying a first potential to the first memory circuit, a third period of displaying a first image corresponding to the first image data, a fourth period of setting a potential of the one electrode of the display unit to a second potential, a fifth period of supplying the first potential to the second memory circuit, and a sixth period of displaying a second image corresponding to the second image data.

公开(公告)号：US11087675B2

公开(公告)日：2021-08-10

申请号：US16758108

申请日：2018-11-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu Kawashima ,  Koji Kusunoki ,  Kazunori Watanabe ,  Kouhei Toyotaka ,  Kei Takahashi ,  Kentaro Hayashi ,  Shunpei Yamazaki

IPC: G09G3/30 ,  G09G3/3225 ,  H01L27/32 ,  H01L29/786

Abstract: A display device that can display a high-luminance image is provided. The display device includes a display element and a memory circuit which is electrically connected to a first wiring and a second wiring. First, a reference potential is supplied to the first wiring. Next, a first image signal is supplied to the memory circuit through the second wiring. Then, the second image signal is added to the first image signal by supplying the second image signal to the memory circuit through the first wiring. After that, an image obtained by superimposing an image corresponding to the first image signal and an image corresponding to the second image signal on each other is displayed with the display element.

公开(公告)号：US11069718B2

公开(公告)日：2021-07-20

申请号：US17023863

申请日：2020-09-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei Toyotaka ,  Kei Takahashi ,  Hideaki Shishido ,  Koji Kusunoki

IPC: H01L27/12 ,  H01L29/04 ,  H01L29/49 ,  H01L29/786 ,  H01L27/32

Abstract: A novel display device or the like in which a transistor connected to a scan line has small gate capacitance is provided. A novel display device or the like in which a scan line has low resistance is provided. A novel display device or the like in which pixels can be arranged with high density is provided. A novel display device or the like that can be manufactured without an increase in cost is provided. In a transistor including a first gate electrode and a second gate electrode, the first gate electrode is formed using a metal material with low resistance and the second gate electrode is formed using a metal oxide material that can reduce oxygen vacancies in an oxide semiconductor layer. The first gate electrode is connected to the scan line, and the second gate electrode is connected to a wiring to which a constant potential is supplied.

公开(公告)号：US10831291B2

公开(公告)日：2020-11-10

申请号：US15290073

申请日：2016-10-11

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Yoshiharu Hirakata

IPC: G06F3/0354 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/1345 ,  G02F1/1335 ,  G02F1/1343 ,  G06F3/041 ,  G09G3/20 ,  H01L27/32 ,  G02F1/1334 ,  G02F1/1337 ,  G02F1/1339 ,  G02F1/167 ,  G09G3/3233 ,  G09G3/36

Abstract: Provided is a novel display panel that is highly convenient or reliable, a novel data processor that is highly convenient or reliable, or a method for manufacturing a novel display panel that is highly convenient or reliable. The display panel includes a pixel and a terminal electrically connected to the pixel. The pixel includes a first insulating film, a first contact portion in a first opening provided in the first insulating film, a pixel circuit electrically connected to the first contact portion, a second contact portion electrically connected to the pixel circuit, a first display element electrically connected to the first contact portion, and a second display element electrically connected to the second contact portion. The first insulating film includes a region lying between the first display element and the second display element. The terminal includes a surface at which contact with other component can be made.

公开(公告)号：US10784285B2

公开(公告)日：2020-09-22

申请号：US16126360

申请日：2018-09-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei Toyotaka ,  Kei Takahashi ,  Hideaki Shishido ,  Koji Kusunoki

IPC: H01L27/12 ,  H01L29/04 ,  H01L29/49 ,  H01L29/786 ,  H01L27/32

Abstract: A novel display device or the like in which a transistor connected to a scan line has small gate capacitance is provided. A novel display device or the like in which a scan line has low resistance is provided. A novel display device or the like in which pixels can be arranged with high density is provided. A novel display device or the like that can be manufactured without an increase in cost is provided. In a transistor including a first gate electrode and a second gate electrode, the first gate electrode is formed using a metal material with low resistance and the second gate electrode is formed using a metal oxide material that can reduce oxygen vacancies in an oxide semiconductor layer. The first gate electrode is connected to the scan line, and the second gate electrode is connected to a wiring to which a constant potential is supplied.

公开(公告)号：US10290693B2

公开(公告)日：2019-05-14

申请号：US15225173

申请日：2016-08-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Koji Kusunoki

IPC: G09G3/3225 ,  H01L27/32 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1368 ,  G09G3/36 ,  H01L27/12 ,  H01L29/786 ,  G09G5/34

Abstract: Provided is a novel display panel that is highly convenient or reliable or a display panel with a high pixel aperture ratio. The display panel includes the first display element, the first conductive film electrically connected to the first display element, the second conductive film having a region overlapping with the first conductive film, the second insulating film having a region sandwiched between the second conductive film and the first conductive film, a pixel circuit electrically connected to the second conductive film, and the second display element electrically connected to the pixel circuit. The second insulating film includes an opening, and the second conductive film is electrically connected to the first conductive film in the opening.

公开(公告)号：US10031392B2

公开(公告)日：2018-07-24

申请号：US15285096

申请日：2016-10-04

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Masataka Nakada ,  Masahiro Katayama ,  Seiji Yasumoto ,  Hiroki Adachi ,  Masataka Sato ,  Koji Kusunoki ,  Yoshiharu Hirakata

IPC: G02F1/1362 ,  G06F3/01 ,  G02F1/1335 ,  G06F3/041 ,  G02F1/1345 ,  G02F1/1333 ,  H01L27/12

Abstract: Provided is a novel display panel that is highly convenient or highly reliable, a novel input/output device that is highly convenient or highly reliable, or a method for manufacturing a novel display panel that is highly convenient or highly reliable. The present inventors conceived a structure including a first intermediate film, a first electrode including a region in contact with the first intermediate film, a pixel that includes a first display element including the first electrode and a pixel circuit electrically connected to the first display element, a signal line electrically connected to the pixel, and a terminal that includes a third conductive film electrically connected to the signal line and a second intermediate film including a region in contact with the third conductive film.

公开(公告)号：US09880437B2

公开(公告)日：2018-01-30

申请号：US14551914

申请日：2014-11-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Koji Kusunoki ,  Hiroyuki Miyake

IPC: G02F1/1343 ,  G02F1/1362 ,  H01L27/12 ,  H01L29/786 ,  G02F1/1368

CPC classification number: G02F1/136286 ,  G02F1/134336 ,  G02F1/1368 ,  G02F2001/134345 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1255 ,  H01L29/78606 ,  H01L29/7869 ,  H01L29/78696

Abstract: A transistor includes a gate electrode over a substrate, an oxide semiconductor film overlapping with the gate electrode, a gate insulating film in contact with one surface of the oxide semiconductor film, and a pair of conductive films in contact with the oxide semiconductor film. A capacitor includes a metal oxide film over the gate insulating film and in contact with one of the pair of conductive films, an inorganic insulating film, and a first light-transmitting conductive film over the inorganic insulating film. A first gate line serving also as a gate electrode is connected so as to be able to select three sub-pixels of four sub-pixels, and a second gate line is connected so as to be able to select the remaining one of the four sub-pixels and also one sub-pixel in the next row.