公开(公告)号：US20210126132A1

公开(公告)日：2021-04-29

申请号：US17257364

申请日：2019-06-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Rai SATO ,  Masami JINTYOU ,  Masayoshi DOBASHI ,  Takashi SHIRAISHI

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

Abstract: A transistor in which shape defects are unlikely to occur is provided. A transistor with favorable electrical characteristics is provided. A semiconductor device with favorable electrical characteristics is provided. The semiconductor device includes a transistor. The transistor includes a semiconductor layer, a first insulating layer, a metal oxide layer, a functional layer, and a conductive layer. The first insulating layer is positioned over the semiconductor layer. The metal oxide layer is positioned over the first insulating layer. The functional layer is positioned over the metal oxide layer. The conductive layer is positioned over the functional layer. The semiconductor layer, the first insulating layer, the metal oxide layer, the functional layer, and the conductive layer have regions overlapping with each other. In the channel length direction of the transistor, end portions of the first insulating layer, the metal oxide layer, the functional layer, and the conductive layer are positioned inward from an end portion of the semiconductor layer. An etching rate of the functional layer with an etchant containing one or more of phosphoric acid, acetic acid, nitric acid, hydrochloric acid, and sulfuric acid is lower than an etching rate of the conductive layer.

公开(公告)号：US20250008780A1

公开(公告)日：2025-01-02

申请号：US18707700

申请日：2022-11-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Masataka NAKADA ,  Masahiro KATAYAMA ,  Rai SATO ,  Yasuharu HOSAKA ,  Toshimitsu OBONAI ,  Masayoshi DOBASHI ,  Koji KUSUNOKI ,  Tomonori NAKAYAMA

IPC: H10K59/122 ,  H10K59/131

Abstract: A display apparatus with high resolution is provided. The display apparatus includes a transistor, a light-emitting device, a first insulating layer, a second insulating layer, and a first conductive layer. The transistor includes a semiconductor layer and a second conductive layer electrically connected to the semiconductor layer. The light-emitting device includes a pixel electrode. The first insulating layer is provided over the transistor and includes a first opening reaching the second conductive layer. The first conductive layer covers the first opening. The second insulating layer is provided over the first insulating layer and includes a second opening in a region overlapping with the first opening. The pixel electrode covers a top surface of the second insulating layer and the second opening. The pixel electrode is electrically connected to the second conductive layer through the first conductive layer. An end portion of the first insulating layer is positioned over the second conductive layer. An end portion of the second insulating layer is positioned over the first conductive layer. An end portion of the second insulating layer is positioned outward from the end portion of the first insulating layer.

公开(公告)号：US20250004337A1

公开(公告)日：2025-01-02

申请号：US18710360

申请日：2022-11-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Koji KUSUNOKI ,  Masahiro KATAYAMA ,  Rai SATO

IPC: G02F1/1362 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/1368 ,  H01L25/16 ,  H01L27/12

Abstract: A display device with a high aperture ratio is provided. A step caused by a contact hole (50) for electrically connecting a wiring (33) and a pixel electrode (41) to each other is eliminated by being filled with an organic insulating layer (52), and a top surface of the pixel electrode is made flat to form an alignment film (45a) so that an alignment defect of a liquid crystal layer (40) is reduced. In addition, a light-transmitting material is used for the wiring (33) exposed to a bottom portion of the contact hole (50). Accordingly, an effective display region of a liquid crystal device can be increased. That is, the display device can have a high aperture ratio.

公开(公告)号：US20240389442A1

公开(公告)日：2024-11-21

申请号：US18693773

申请日：2022-09-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kazuya SUGIMOTO ,  Ryo HATSUMI ,  Daisuke KUBOTA ,  Rai SATO ,  Masataka NAKADA ,  Yasutaka NAKAZAWA

IPC: H10K59/80 ,  H10K39/34

Abstract: A display apparatus having an image capturing function is provided. An image capturing device or a display apparatus capable of high-sensitivity image capturing can be provided. The display apparatus includes a first substrate, a second substrate facing the first substrate, a light-emitting element over the first substrate, a light-receiving element adjacent to the light-emitting element, a first light-blocking layer over the first substrate, a second light-blocking layer on the surface of the second substrate facing the first substrate, and a third light-blocking layer on the surface of the second light-blocking layer facing the first substrate. Each of the first to third light-blocking layers is provided between the light-emitting element and the light-receiving element in a plan view. The first light-blocking layer and the third light-blocking layer are provided so as to have a space between each other in a plan view.

公开(公告)号：US20240389441A1

公开(公告)日：2024-11-21

申请号：US18692873

申请日：2022-09-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke KUBOTA ,  Ryo HATSUMI ,  Rai SATO ,  Masataka NAKADA ,  Yasutaka NAKAZAWA

IPC: H10K59/80 ,  H10K39/34

Abstract: A display apparatus having an image capturing function is provided. Noise in image capturing is reduced. The display apparatus includes a first pixel electrode, a second pixel electrode, a first organic layer, a second organic layer, a common electrode, a spacer, a protective layer, and a light-blocking layer. The first organic layer is provided over the first pixel electrode. The second organic layer is provided over the second pixel electrode. The common electrode includes a portion overlapping with the first pixel electrode with the first organic layer positioned therebetween and a portion overlapping with the second pixel electrode with the second organic layer positioned therebetween. The protective layer is provided to cover the common electrode. The spacer has a light-transmitting property with respect to visible light and includes a portion overlapping with the first pixel electrode with the protective layer, the common electrode, and the first organic layer positioned therebetween. The light-blocking layer is provided over the spacer and includes an opening overlapping with the second pixel electrode. The first organic layer includes a photoelectric conversion layer, and the second organic layer includes a light-emitting layer.

公开(公告)号：US20240381737A1

公开(公告)日：2024-11-14

申请号：US18294431

申请日：2022-07-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao IKEDA ,  Yasutaka NAKAZAWA ,  Rai SATO ,  Shunpei YAMAZAKI

IPC: H10K59/65 ,  H10K59/126 ,  H10K59/38 ,  H10K59/40 ,  H10K59/80

Abstract: A display apparatus having an image capturing function is provided. An image capturing device or a display apparatus capable of high-sensitivity image capturing is provided. The display apparatus includes a first pixel electrode, a second pixel electrode, a first organic layer, a second organic layer, a common electrode, a first resin layer, a second resin layer, and a light-blocking layer. The first organic layer and the second organic layer are provided over the first pixel electrode and the second pixel electrode, respectively. The first resin layer and the second resin layer cover an end portion of the first organic layer and an end portion of the second organic layer, respectively. A side surface of the first organic layer and a side surface of the second organic layer face each other with the first resin layer and the second resin layer interposed therebetween. The common electrode includes portions overlapping with the first pixel electrode, the second pixel electrode, the first resin layer, and the second resin layer, and a depressed portion positioned between the first resin layer and the second resin layer in a plan view. The light-blocking layer is provided over the common electrode so as to fill the depressed portion of the common electrode.

公开(公告)号：US20240315108A1

公开(公告)日：2024-09-19

申请号：US18672210

申请日：2024-05-23

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryo HATSUMI ,  Taisuke KAMADA ,  Daisuke KUBOTA ,  Rai SATO ,  Hiroki ADACHI ,  Ryo YAMAUCHI ,  Kazunori WATANABE

IPC: H10K59/60 ,  G09G3/30 ,  G09G3/3208 ,  H10K50/86 ,  H10K59/30

CPC classification number: H10K59/60 ,  G09G3/30 ,  G09G3/3208 ,  H10K50/865 ,  H10K59/30 ,  G09G2360/142

Abstract: A display device having a function of sensing light is provided. The display device includes a first substrate, a second substrate, a light-receiving element, a light-emitting element, a resin layer, and a light shielding layer. The light-receiving element, the light-emitting element, the resin layer, and the light shielding layer are each positioned between the first substrate and the second substrate. The light-receiving element includes a first pixel electrode over the first substrate, an active layer over the first pixel electrode, and a common electrode over the active layer. The light-emitting element includes a second pixel electrode over the first substrate, a first light-emitting layer over the second pixel electrode, and the common electrode over the first light-emitting layer. The resin layer and the light shielding layer are each positioned between the common electrode and the second substrate. The resin layer includes a portion overlapping with the light-emitting element. The light shielding layer includes a portion positioned between the common electrode and the resin layer. The resin layer includes a portion overlapping with the light-receiving element or is provided in an island shape. At least part of light passing through the second substrate enters the light-receiving element without through the resin layer.

公开(公告)号：US20240213335A1

公开(公告)日：2024-06-27

申请号：US18288599

申请日：2022-04-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yasuharu HOSAKA ,  Yasutaka NAKAZAWA ,  Takashi SHIRAISHI ,  Rai SATO ,  Kenichi OKAZAKI

IPC: H01L29/417 ,  H01L29/45 ,  H01L29/66 ,  H01L29/786 ,  H10K59/12 ,  H10K59/121

CPC classification number: H01L29/41733 ,  H01L29/66969 ,  H01L29/7869 ,  H10K59/1201 ,  H10K59/1213 ,  H01L29/45

Abstract: A miniaturized semiconductor device is provided. The semiconductor device includes a semiconductor layer over a substrate, a first conductive layer and a second conductive layer being apart from each other over the semiconductor layer, a mask layer in contact with a top surface of the first conductive layer, a first insulating layer covering the semiconductor layer, the first conductive layer, the second conductive layer, and the mask layer, and a third conductive layer overlapping with the semiconductor layer and being over the first insulating layer. The first insulating layer is in contact with a top surface and a side surface of the mask layer, a side surface of the first conductive layer, a top surface and a side surface of the second conductive layer, and a top surface of the semiconductor layer. The semiconductor device includes a region in which the distance between opposite end portions of the first conductive layer and the second conductive layer is less than or equal to 1 μm.

公开(公告)号：US20240172516A1

公开(公告)日：2024-05-23

申请号：US18552272

申请日：2022-03-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kenichi OKAZAKI ,  Daiki NAKAMURA ,  Rai SATO

IPC: H10K59/38 ,  H10K50/13 ,  H10K50/19 ,  H10K59/35

CPC classification number: H10K59/38 ,  H10K50/13 ,  H10K50/19 ,  H10K59/352 ,  H10K59/353

Abstract: A display apparatus with high resolution or high definition is provided. The display apparatus includes a first light-emitting device, a second light-emitting device, a first insulating layer, a first color conversion layer, and a second color conversion layer; the first light-emitting device includes a first pixel electrode, a first light-emitting layer over the first pixel electrode, and a common electrode over the first light-emitting layer; the second light-emitting device includes a second pixel electrode, a second light-emitting layer over the second pixel electrode, and the common electrode over the second light-emitting layer; the first insulating layer covers side surfaces of the first pixel electrode, the second pixel electrode, the first light-emitting layer, and the second light-emitting layer; the first color conversion layer is positioned overlapping with the first light-emitting device; the second color conversion layer is positioned overlapping with the second light-emitting device; the first light-emitting device and the second light-emitting device each have a function of emitting blue light; and the first color conversion layer has a function of converting blue light into light with different wavelengths from the second color conversion layer.

公开(公告)号：US20240099069A1

公开(公告)日：2024-03-21

申请号：US18276078

申请日：2022-02-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Rai SATO ,  Masahiro KATAYAMA ,  Naoto GOTO ,  Yasutaka NAKAZAWA ,  Kenichi OKAZAKI

IPC: H10K59/122 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/1201

Abstract: A high-resolution display device is provided. A display device with both high display quality and high resolution is provided. The display device includes a first display element including a first pixel electrode, a first EL layer, and a common electrode; a second display element including a second pixel electrode, a second EL layer, and the common electrode; a first insulating layer covering an end portion of the first pixel electrode and an end portion of the second pixel electrode; a second insulating layer over the first insulating layer; and a third insulating layer over the second insulating layer. The first EL layer is placed over the first pixel electrode and the third insulating layer. The second EL layer is placed over the second pixel electrode and the third insulating layer.