公开(公告)号：US20240402555A1

公开(公告)日：2024-12-05

申请号：US18802224

申请日：2024-08-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Yukie SUZUKI ,  Hideaki KUWABARA ,  Hajime KIMURA

IPC: G02F1/1368 ,  G02F1/1333 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/1362 ,  H01L27/12 ,  H01L29/04 ,  H01L29/45 ,  H01L29/49 ,  H01L29/66 ,  H01L29/786

Abstract: A method of manufacturing, with high mass productivity, liquid crystal display devices having highly reliable thin film transistors with excellent electric characteristics is provided. In a liquid crystal display device having an inverted staggered thin film transistor, the inverted staggered thin film transistor is formed as follows: a gate insulating film is formed over a gate electrode; a microcrystalline semiconductor film which functions as a channel formation region is formed over the gate insulating film; a buffer layer is formed over the microcrystalline semiconductor film; a pair of source and drain regions are formed over the buffer layer; and a pair of source and drain electrodes are formed in contact with the source and drain regions so as to expose a part of the source and drain regions.

公开(公告)号：US20240096242A1

公开(公告)日：2024-03-21

申请号：US18038271

申请日：2021-11-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Shingo EGUCHI ,  Hideaki KUWABARA

IPC: G09F9/30 ,  G09F21/00 ,  H10K59/126

CPC classification number: G09F9/30 ,  G09F21/00 ,  H10K59/126

Abstract: One embodiment of the present invention provides a display device from which a driver or a fellow passenger in a mobile body such as a vehicle can easily obtain desired information. One embodiment of the present invention is a display device including a display panel. The display panel is placed inside a mobile body including window glass. A film including a light-blocking layer is provided between the window glass and the display panel of the mobile body. By providing a driving unit controlling the display panel, the positional relationship between the window glass and the display panel is changed. Alternatively, by providing a driving unit controlling the film including the light-blocking layer, the positional relationship between the window glass and the film including the light-blocking layer is changed.

公开(公告)号：US20220068977A1

公开(公告)日：2022-03-03

申请号：US17512855

申请日：2021-10-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Junichiro SAKATA ,  Hiroyuki MIYAKE ,  Hideaki KUWABARA ,  Tatsuya TAKAHASHI

IPC: H01L27/12 ,  H01L29/45 ,  G02F1/1368 ,  H01L29/786

Abstract: An aperture ratio of a semiconductor device is improved. A driver circuit and a pixel are provided over one substrate, and a first thin film transistor in the driver circuit and a second thin film transistor in the pixel each include a gate electrode layer, a gate insulating layer over the gate electrode layer, an oxide semiconductor layer over the gate insulating layer, source and drain electrode layers over the oxide semiconductor layer, and an oxide insulating layer in contact with part of the oxide semiconductor layer over the gate insulating layer, the oxide semiconductor layer, and the source and drain electrode layers. The gate electrode layer, the gate insulating layer, the oxide semiconductor layer, the source and drain electrode layers, and the oxide insulating layer of the second thin film transistor each have a light-transmitting property.

公开(公告)号：US20210240221A1

公开(公告)日：2021-08-05

申请号：US17233669

申请日：2021-04-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideaki KUWABARA ,  Masaaki HIROKI

IPC: G06F1/16

Abstract: A novel electronic device is provided. Alternatively an electronic device of a novel embodiment is provided. An electronic device includes a ring portion and a display portion. The display portion is flexible. The display portion has a top surface and a first side surface in contact with at least one side of the top surface. The first side surface has a curved surface. The top surface includes a first display region. The first side surface includes a second display region. The first display region and the second display region are continuously provided. The electronic device is mounted such that the ring portion is in contact with a user's finger.

公开(公告)号：US20200335632A1

公开(公告)日：2020-10-22

申请号：US16867620

申请日：2020-05-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Miyuki HOSOBA ,  Junichiro SAKATA ,  Hideaki KUWABARA

IPC: H01L29/786 ,  G02F1/1362 ,  H01L27/12 ,  H01L29/66 ,  H01L29/45 ,  H01L29/51

Abstract: An object is to provide a semiconductor device having a structure in which parasitic capacitance between wirings can be efficiently reduced. In a bottom gate thin film transistor using an oxide semiconductor layer, an oxide insulating layer used as a channel protection layer is formed above and in contact with part of the oxide semiconductor layer overlapping with a gate electrode layer, and at the same time an oxide insulating layer covering a peripheral portion (including a side surface) of the stacked oxide semiconductor layer is formed. Further, a source electrode layer and a drain electrode layer are formed in a manner such that they do not overlap with the channel protection layer. Thus, a structure in which an insulating layer over the source electrode layer and the drain electrode layer is in contact with the oxide semiconductor layer is provided.

公开(公告)号：US20200183561A1

公开(公告)日：2020-06-11

申请号：US16793034

申请日：2020-02-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Hajime KIMURA ,  Hideaki KUWABARA ,  Koji DAIRIKI

IPC: G06F3/0488 ,  G06F1/3234

Abstract: A data processing device which includes a flexible position input portion for sensing proximity or a touch of an object such as a user's palm and finger. In the case where a first region of the flexible position input portion is held by a user for a certain period, supply of image signals to the first region is selectively stopped.

公开(公告)号：US20200133041A1

公开(公告)日：2020-04-30

申请号：US16726444

申请日：2019-12-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Yukie SUZUKI ,  Hideaki KUWABARA ,  Hajime KIMURA

IPC: G02F1/1368 ,  G02F1/1343 ,  G02F1/1339 ,  H01L29/786 ,  H01L27/12 ,  G02F1/1333 ,  G02F1/1362 ,  H01L29/66 ,  H01L29/04

Abstract: A method of manufacturing, with high mass productivity, liquid crystal display devices having highly reliable thin film transistors with excellent electric characteristics is provided. In a liquid crystal display device having an inverted staggered thin film transistor, the inverted staggered thin film transistor is formed as follows: a gate insulating film is formed over a gate electrode; a microcrystalline semiconductor film which functions as a channel formation region is formed over the gate insulating film; a buffer layer is formed over the microcrystalline semiconductor film; a pair of source and drain regions are formed over the buffer layer; and a pair of source and drain electrodes are formed in contact with the source and drain regions so as to expose a part of the source and drain regions.

公开(公告)号：US20200058682A1

公开(公告)日：2020-02-20

申请号：US16662394

申请日：2019-10-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Junichiro SAKATA ,  Hiroyuki MIYAKE ,  Hideaki KUWABARA ,  Tatsuya TAKAHASHI

IPC: H01L27/12 ,  H01L29/786 ,  G02F1/1368 ,  H01L29/45

Abstract: An aperture ratio of a semiconductor device is improved. A driver circuit and a pixel are provided over one substrate, and a first thin film transistor in the driver circuit and a second thin film transistor in the pixel each include a gate electrode layer, a gate insulating layer over the gate electrode layer, an oxide semiconductor layer over the gate insulating layer, source and drain electrode layers over the oxide semiconductor layer, and an oxide insulating layer in contact with part of the oxide semiconductor layer over the gate insulating layer, the oxide semiconductor layer, and the source and drain electrode layers. The gate electrode layer, the gate insulating layer, the oxide semiconductor layer, the source and drain electrode layers, and the oxide insulating layer of the second thin film transistor each have a light-transmitting property.

公开(公告)号：US20180157394A1

公开(公告)日：2018-06-07

申请号：US15874279

申请日：2018-01-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Hajime KIMURA ,  Hideaki KUWABARA ,  Koji DAIRIKI

IPC: G06F3/0488 ,  G06F1/32

Abstract: A data processing device which includes a flexible position input portion for sensing proximity or a touch of an object such as a user's palm and finger. In the case where a first region of the flexible position input portion is held by a user for a certain period, supply of image signals to the first region is selectively stopped.

公开(公告)号：US20170168575A1

公开(公告)日：2017-06-15

申请号：US15366200

申请日：2016-12-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takahiro KASAHARA ,  Hideaki KUWABARA

IPC: G06F3/01 ,  G06F1/16 ,  G09G5/38 ,  G06F3/0488 ,  G06F3/041

Abstract: An input device having flexibility includes a display portion, a touch panel, a haptic element, a haptic controller, and a control portion. The touch panel is configured to acquire information on the size of a user's body part operating the input device and transmit the information to the control portion. The control portion is configured to receive the information, generate information on the positioning of a plurality of buttons, and transmit the information to the display portion. The display portion is configured to display the plurality of buttons on the basis of the received information. The haptic controller is configured to transmit information on a haptic effect to the haptic element.