公开(公告)号：US20240224616A1

公开(公告)日：2024-07-04

申请号：US18569342

申请日：2022-06-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuichi YANAGISAWA ,  Kenichi OKAZAKI ,  Takashi HAMADA ,  Shinya SASAGAWA

IPC: H10K59/122

CPC classification number: H10K59/122

Abstract: A display apparatus with high resolution is provided. A display apparatus which can achieve high color reproducibility is provided. A display apparatus with high luminance is provided. A highly reliable display apparatus is provided. The display apparatus includes a first insulating layer, a first conductive layer provided in an opening of the first insulating layer, a first EL layer over the first conductive layer and the first insulating layer, a second insulating layer in contact with a side surface of the first EL layer and a top surface of the first insulating layer, and a second conductive layer over the first EL layer and the second insulating layer.

公开(公告)号：US20240201929A1

公开(公告)日：2024-06-20

申请号：US18589604

申请日：2024-02-28

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kensuke YOSHIZUMI ,  Yuichi YANAGISAWA ,  Kei TAKAHASHI

IPC: G06F3/14 ,  G06F3/147 ,  H01L27/146 ,  H04N5/64 ,  H10K77/10 ,  H10K102/00

CPC classification number: G06F3/1446 ,  G06F3/147 ,  H01L27/14681 ,  H10K77/111 ,  G09G2300/023 ,  G09G2300/0456 ,  G09G2330/021 ,  G09G2380/02 ,  H04N5/64 ,  H10K2102/311 ,  Y02E10/549 ,  Y02P70/50

Abstract: Provided is a display device or a display system capable of displaying images along a curved surface, a display device or a display system capable of displaying images seamlessly in the form of a ring, or a display device or a display system that is suitable for increasing in size. The display device includes a display panel. The display panel includes a first part and a second part and is flexible. The first part can display images. The second part can transmit visible light. The display panel is curved so that the second part and the first part overlap with each other.

公开(公告)号：US20240155871A1

公开(公告)日：2024-05-09

申请号：US18280556

申请日：2022-03-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuichi YANAGISAWA ,  Yasumasa YAMANE

IPC: H10K59/121 ,  H10K59/122 ,  H10K59/35

CPC classification number: H10K59/121 ,  H10K59/122 ,  H10K59/35

Abstract: A display device with high display quality is provided. A highly reliable display device is provided. A display device with low power consumption is provided. A display device that can easily achieve a higher resolution is provided. A display device with both high display quality and a high resolution is provided. A display device with high contrast is provided. The display device includes a first pixel, a second pixel arranged to be adjacent to the first pixel, and a first insulating layer; the first pixel includes a first pixel electrode, a first EL layer over the first pixel electrode, and a common electrode over the first EL layer; the second pixel includes a second pixel electrode, a second EL layer over the second pixel electrode, and the common electrode over the second EL layer; a side surface of the first EL layer and a side surface of the second EL layer each include a region in contact with the first insulating layer; a side surface of the first pixel electrode is covered with the first EL layer; and a side surface of the second pixel electrode is covered with the second EL layer.

公开(公告)号：US20240147761A1

公开(公告)日：2024-05-02

申请号：US18263362

申请日：2022-01-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yuichi YANAGISAWA ,  Shinya SASAGAWA ,  Shiro NISHIZAKI ,  Ryota HODO

IPC: H10K59/12 ,  H10K59/124 ,  H10K59/32 ,  H10K71/10 ,  H10K71/20 ,  H10K71/60 ,  H10K85/10

CPC classification number: H10K59/1201 ,  H10K59/124 ,  H10K59/32 ,  H10K71/10 ,  H10K71/231 ,  H10K71/60 ,  H10K85/10

Abstract: A method for manufacturing a display apparatus with high display quality is provided. The method is for manufacturing a display apparatus including first to third insulators, first and second conductors, and a first EL layer. The first conductor is formed over the first insulator, and the second insulator is formed over the first insulator and over the first conductor. Next, a first opening portion reaching the first conductor is formed in a region of the second insulator overlapping with the first conductor. A positive photoresist is applied to regions over the first and second insulators and over the first conductor, and a second opening portion with an inversely tapered structure reaching the first conductor and the second insulator is formed in a region of the photoresist overlapping with the first opening portion and the first conductor. The first EL layer, the second conductor, and the third insulator are sequentially formed on a bottom portion of the second opening portion of the photoresist and over the photoresist, and then, the photoresist and the first EL layer, the second conductor, and the third insulator formed over the photoresist are removed.

公开(公告)号：US20240057403A1

公开(公告)日：2024-02-15

申请号：US18266645

申请日：2021-12-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yuichi YANAGISAWA ,  Shinya SASAGAWA ,  Takashi HAMADA

IPC: H10K59/124

CPC classification number: H10K59/124

Abstract: A highly reliable display device is provided. The display device includes a transistor over a substrate, a first insulating layer over the transistor, a second insulating layer over the first insulating layer, a plug placed to be embedded in the first insulating layer and the second insulating layer, and a light-emitting element over the second insulating layer. The light-emitting element includes a first conductive layer, an EL layer over the first conductive layer, and a second conductive layer over the EL layer. The plug electrically connects one of a source and a drain of the transistor to the first conductive layer. The second insulating layer has higher capability of inhibiting hydrogen diffusion than the first insulating layer.

公开(公告)号：US20230402279A1

公开(公告)日：2023-12-14

申请号：US18041726

申请日：2021-08-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Yoshihiro KOMATSU ,  Toshikazu OHNO ,  Yuichi YANAGISAWA ,  Shinya SASAGAWA

IPC: H01L21/02 ,  C23C16/455 ,  C23C16/56 ,  C23C16/40

CPC classification number: H01L21/02181 ,  H01L21/02205 ,  H01L21/0228 ,  C23C16/45529 ,  C23C16/56 ,  C23C16/405

Abstract: A semiconductor device in which variation in electrical characteristics is small is provided. A first insulator is deposited, a metal oxide is device over the first insulator, a second insulator is device over the metal oxide, an oxide film is device over the second insulator, and heat treatment is performed, whereby hydrogen in the first insulator, the second insulator, and the oxide is transferred and absorbed into the metal oxide. The metal oxide is formed by an ALD method.

公开(公告)号：US20230144044A1

公开(公告)日：2023-05-11

申请号：US17912753

申请日：2021-03-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yoichi Iikubo ,  Daisuke YAMAGUCHI ,  Yuichi YANAGISAWA

IPC: H01L29/66 ,  H01L29/786

CPC classification number: H01L29/66969 ,  H01L29/7869 ,  H10B12/05

Abstract: A method for manufacturing a semiconductor device with a high yield is provided. In a semiconductor device including an oxide semiconductor over a substrate, when an insulator in contact with the oxide semiconductor, such as a gate insulator or an interlayer film, is deposited, the insulator can be deposited without diffusion of hydrogen into the oxide semiconductor by setting a constant derived from deposition conditions within a given range. Specifically, setting values of deposition power, the effective electrode area, deposition pressure, and the flow rate of a deposition gas containing hydrogen in the deposition conditions can be selected as appropriate.

公开(公告)号：US20200034105A1

公开(公告)日：2020-01-30

申请号：US16590732

申请日：2019-10-02

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kensuke YOSHIZUMI ,  Yuichi YANAGISAWA ,  Kei TAKAHASHI

IPC: G06F3/14 ,  G06F3/147 ,  H01L27/146 ,  H01L51/00

Abstract: Provided is a display device or a display system capable of displaying images along a curved surface, a display device or a display system capable of displaying images seamlessly in the form of a ring, or a display device or a display system that is suitable for increasing in size. The display device includes a display panel. The display panel includes a first part and a second part and is flexible. The first part can display images. The second part can transmit visible light. The display panel is curved so that the second part and the first part overlap with each other.

公开(公告)号：US20190008014A1

公开(公告)日：2019-01-03

申请号：US16121702

申请日：2018-09-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao IKEDA ,  Nozomu SUGISAWA ,  Yuichi YANAGISAWA

IPC: H05B33/12 ,  H01L27/32 ,  G02F1/1333

Abstract: A display device that can display an image along a curved surface is provided. In the display device, a first display panel and a second display panel overlap each other with a light-transmitting layer provided therebetween. The light-transmitting layer is positioned on a display surface side of the first display panel, and on a side opposite to the display surface of the second display panel. The light-transmitting layer has an average transmittance of 80% or more with respect to light in the wavelength range of 450 nm to 700 nm and a refractive index higher than that of air. A display region of the first display panel overlaps a region transmitting visible light of the second display panel with the light-transmitting layer provided therebetween. It is preferred that the display region of the first display panel not overlap with a region blocking visible light of the second display panel.

公开(公告)号：US20180307277A1

公开(公告)日：2018-10-25

申请号：US16009349

申请日：2018-06-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuichi YANAGISAWA

IPC: G06F1/16 ,  A61B5/18 ,  H04N13/383 ,  A61B3/113 ,  A61B3/00 ,  H04N13/31 ,  H04N13/144 ,  H01L27/32

Abstract: A display device or a display system with which a viewer can feel a strong or natural stereoscopic effect in a two-dimensional image and is less likely to be fatigued is provided. The display system includes a display portion, a detection portion, and a control portion. The display portion is flexible. The detection portion is configured to detect the conditions of a viewer's eye to obtain detection information and to supply the detection information to the control portion. The control portion is configured to extract information on the viewer's fatigue from the detection information and to change the curvature of the display portion on the basis of the information on the viewer's fatigue. The central angle of the curved surface of the display portion is preferably greater than or equal to 20° and less than 90°.