公开(公告)号：US20250081748A1

公开(公告)日：2025-03-06

申请号：US18722110

申请日：2022-12-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoya AOYAMA ,  Hisao IKEDA ,  Daiki NAKAMURA

IPC: H10K59/122

Abstract: A highly reliable display device is provided. A first light-emitting device, a second light-emitting device positioned adjacent to the first light-emitting device, and a first insulating layer are included; the first light-emitting device 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 light-emitting device includes a second pixel electrode, a second EL layer over the second pixel electrode, and the common electrode over the second EL layer; part of the first insulating layer is positioned at a position interposed between a side end portion of the first EL layer and a side end portion of the second EL layer; the first light-emitting device emits blue light; the second light-emitting device emits light of a color different from that from the first light-emitting device; the first EL layer includes a first light-emitting unit over the first pixel electrode, a first charge-generation layer over the first light-emitting unit, and a second light-emitting unit over the first charge-generation layer; and the second EL layer includes a third light-emitting unit over the second pixel electrode.

公开(公告)号：US20250072260A1

公开(公告)日：2025-02-27

申请号：US18810137

申请日：2024-08-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Naoaki HASHIMOTO ,  Daiki NAKAMURA

IPC: H10K59/80 ,  H10K102/00

Abstract: To provide a display apparatus with high display quality. To provide a display apparatus which includes first and second light-emitting devices and in which the first and second light-emitting devices include a common electrode with a light-transmitting property, the first light-emitting device includes a first electrode, a first EL layer, and a first auxiliary electrode with a light-transmitting property, the second light-emitting device includes a second electrode, a second EL layer, and a second auxiliary electrode with a light-transmitting property, the first EL layer is between the first electrode and the common electrode, the second EL layer is between the second electrode and the common electrode, the first auxiliary electrode is between the first EL layer and the common electrode, the second auxiliary electrode is between the second EL layer and the common electrode, and the first auxiliary electrode has a larger thickness than the second auxiliary electrode.

公开(公告)号：US20240393611A1

公开(公告)日：2024-11-28

申请号：US18797906

申请日：2024-08-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeya HIROSE ,  Ryo HATSUMI ,  Hisao IKEDA ,  Daiki NAKAMURA ,  Yosuke TSUKAMOTO

IPC: G02B27/28 ,  G02B27/14

Abstract: An optical device with less influence of stray light is provided. The optical device is thin and includes a half mirror, a first lens, a retardation plate, a reflective polarizing plate, and a second lens. In the optical device, a geometric phase lens which has negative and positive refractive power is used as the first lens, whereby images can be focused after magnified optically. Thus, the optical device can have a wide viewing angle. In the case where stray light occurs due to birefringence of an optical material, negative refractive power of the first lens can prevent the stray light from being focused on the eye direction. Accordingly, image degradation recognized due to stray light can be prevented.

公开(公告)号：US20240341148A1

公开(公告)日：2024-10-10

申请号：US18575967

申请日：2022-06-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daiki NAKAMURA ,  Kenichi OKAZAKI ,  Nozomu SUGISAWA

IPC: H10K59/35 ,  H10K50/17 ,  H10K59/80 ,  H10K102/00

CPC classification number: H10K59/353 ,  H10K50/171 ,  H10K59/873 ,  H10K2102/351

Abstract: A display apparatus with high display quality is provided. The display apparatus includes a first light-emitting device and a second light-emitting device adjacent to each other and a first insulating layer. The first light-emitting device includes a first pixel electrode, a first EL layer over the first pixel electrode, and a common electrode over the first EL layer and the first insulating layer. The second light-emitting device includes a second pixel electrode, a second EL layer over the second pixel electrode, and the common electrode over the second EL layer and the first insulating layer. The first insulating layer is in contact with a side surface of the first EL layer and a side surface of the second EL layer. The thickness of the first pixel electrode is smaller than the thickness of the second pixel electrode and the thickness of the first EL layer is larger than the thickness of the second EL layer.

公开(公告)号：US20240334791A1

公开(公告)日：2024-10-03

申请号：US18294845

申请日：2022-07-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao IKEDA ,  Daiki NAKAMURA ,  Ryo HATSUMI ,  Shunpei YAMAZAKI

IPC: H10K59/80 ,  H10K59/65

CPC classification number: H10K59/879 ,  H10K59/65

Abstract: A display apparatus with high display quality is provided. The display apparatus includes a light-emitting device, a light-receiving device, a first plano-convex lens, and a second plano-convex lens. The light-emitting device and the first plano-convex lens have an overlap region. The light-receiving device and the second plano-convex lens have an overlap region. The light-emitting device and the light-receiving device each include a pair of electrodes and an organic compound provided between the pair of electrodes. One of the pair of electrodes is a conductive film having a light-transmitting property with respect to visible light. The first plano-convex lens and the second plano-convex lens are provided so that a surface opposite to a convex surface is in contact with the conductive film. A refractive index of the plano-convex lenses is greater than a refractive index of the conductive film.

公开(公告)号：US20240284754A1

公开(公告)日：2024-08-22

申请号：US18560714

申请日：2022-05-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke KUBOTA ,  Akio YAMASHITA ,  Taisuke KAMADA ,  Daiki NAKAMURA

IPC: H10K59/65 ,  H10K59/40 ,  H10K102/00

CPC classification number: H10K59/65 ,  H10K59/40 ,  H10K2102/351

Abstract: A display apparatus having a light detection function with high accuracy is to be provide. The display apparatus includes a light-receiving device, a first light-emitting device, and an insulating layer. The light-receiving device includes a first electrode, a light-receiving layer, and a common electrode. The first light-emitting device includes a second electrode, a first EL layer, and the common electrode. The light-receiving layer includes a first functional layer, a second functional layer, and an active layer provided therebetween. The first functional layer contains a first substance having a hole-transport property. The second functional layer contains a second substance having an electron-transport property. An end portion of the active layer, an end portion of the first functional layer, and an end portion of the second functional layer are aligned or substantially aligned with one another. The first EL layer includes a third functional layer, a fourth functional layer, and a first light-emitting layer provided therebetween. The third functional layer contains a third substance having a hole-transport property. The fourth functional layer contains a fourth substance having an electron-transport property. The insulating layer includes regions in contact with a side surface of the light-receiving layer and a side surface of the first EL layer.

公开(公告)号：US20240284740A1

公开(公告)日：2024-08-22

申请号：US18688851

申请日：2022-08-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daiki NAKAMURA ,  Kenichi OKAZAKI ,  Nozomu SUGISAWA

IPC: H10K59/131 ,  H10K59/124

CPC classification number: H10K59/131 ,  H10K59/124

Abstract: A display apparatus with high display quality is provided. The display apparatus includes a transistor, a first insulating layer over the transistor, a plug electrically connected to the transistor, a second insulating layer over the first insulating layer, and a light-emitting device over the second insulating layer; a top surface of the first insulating layer includes a region that is substantially level with the plug; the light-emitting device includes a pixel electrode and an EL layer over the pixel electrode; the second insulating layer includes a first region interposed between the first insulating layer and a second pixel electrode; the first region overlaps with a light-emitting region of the light-emitting device; the pixel electrode is in contact with a top surface of the first region; in a top view, the second insulating layer includes a first end portion overlapping with the plug; at least part of the first end portion is covered with the pixel electrode; at least part of a side surface of the pixel electrode is covered with the EL layer; and the pixel electrode includes a region overlapping with a top surface of the plug and electrically connected to the plug.

公开(公告)号：US20240196663A1

公开(公告)日：2024-06-13

申请号：US18512373

申请日：2023-11-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yasumasa YAMANE ,  Nozomu SUGISAWA ,  Daiki NAKAMURA ,  Hitomi SATO ,  Daigo SHIMADA ,  Takeyoshi WATABE ,  Nobuharu OHSAWA ,  Toshiyuki ISA ,  Shinya SASAGAWA ,  Kentaro SUGAYA

IPC: H10K59/122 ,  H10K59/80

CPC classification number: H10K59/122 ,  H10K59/80515

Abstract: A novel display device that is highly convenient, useful, or reliable is provided. The display apparatus includes a first light-emitting device, a second light-emitting device, and a first layer. The first light-emitting device includes a first electrode, a second electrode, a first unit between the first electrode and the second electrode, and a second layer between the first electrode and the first unit. The first unit includes a first light-emitting material. The second light-emitting device includes a third electrode, a fourth electrode, a second unit between the third electrode and the fourth electrode, and a third layer between the third electrode and the second unit. The second unit includes a second light-emitting material. The first layer is between the first electrode and the second layer and between the third electrode and the third layer, and overlaps with a first gap between the first electrode and the third electrode.

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：US20240130204A1

公开(公告)日：2024-04-18

申请号：US18273070

申请日：2022-01-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daiki NAKAMURA ,  Sho KATO ,  Kenichi OKAZAKI ,  Shunpei YAMAZAKI

IPC: H10K59/80 ,  H10K50/13 ,  H10K50/17 ,  H10K59/131 ,  H10K59/35

CPC classification number: H10K59/8791 ,  H10K50/13 ,  H10K50/171 ,  H10K59/131 ,  H10K59/353 ,  H10K2102/351

Abstract: A display device with both high display quality and high resolution is provided. The display device includes a light-emitting element and a connection portion. The connection portion is provided along an outer periphery of a display region where the light-emitting element is provided. The light-emitting element includes a pixel electrode, a first EL layer over the pixel electrode, a second EL layer over the first EL layer, and a common electrode over the second EL layer. The connection portion includes a connection electrode, a second EL layer over the connection electrode, and the common electrode over the second EL layer. The second EL layer includes a first region in contact with the connection electrode and a second region in contact with the common electrode. The area of a region where the first region and the second region overlap with each other in a top view is greater than or equal to 40000 square micrometers. The second EL layer includes a region where the film thickness is greater than or equal to 0.5 nm and less than or equal to 1.5 nm. The second EL layer contains a substance with a high electron-injection property.