公开(公告)号：US20250056973A1

公开(公告)日：2025-02-13

申请号：US18717635

申请日：2022-12-02

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daiki NAKAMURA ,  Hisao IKEDA ,  Tomoya AOYAMA ,  Nozomu SUGISAWA ,  Yuichi YANAGISAWA

IPC: H10K59/122 ,  H10K59/12 ,  H10K59/80

Abstract: A method for fabricating a highly reliable display device is provided. A first conductive film is formed; a first film containing a first light-emitting substance is formed over the first conductive film; a first mask film is formed over the first film; the first conductive film, the first film, and the first mask film are processed such that their side surfaces are substantially aligned with each other to form a first conductive layer, a first layer, and a first mask layer; a second conductive film is formed over the first mask layer and a first sidewall insulating layer; a second film containing a second light-emitting substance is formed over the second conductive film; a second mask film is formed over the second film; and the second conductive film, the second film, and the second mask film are processed such that their side surfaces are substantially aligned with each other to form a second conductive layer, a second layer, and a second mask layer and to expose the top surface of the first mask layer.

公开(公告)号：US20240431148A1

公开(公告)日：2024-12-26

申请号：US18698966

申请日：2022-10-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuichi YANAGISAWA ,  Ryota HODO ,  Hiromi SAWAI ,  Hideaki SHISHIDO ,  Daiki NAKAMURA

IPC: H10K59/122 ,  H10K59/12 ,  H10K59/38

Abstract: A display device that can easily achieve a higher resolution is provided. A display device with high display quality is provided. The display device includes a pixel electrode, a first organic layer, a second organic layer, a first insulating layer, a second insulating layer, and a common electrode. The first insulating layer includes a first portion in contact with part of a top surface of the pixel electrode, a second portion in contact with a side surface of the pixel electrode, and a third portion not in contact with the pixel electrode. The first organic layer includes a fourth portion in contact with another part of the top surface of the pixel electrode and a fifth portion in contact with the first portion. The second organic layer is in contact with the third portion and isolated from the first organic layer. The second insulating layer covers the fifth portion and the second organic layer and is in contact with the first insulating layer between the first organic layer and the second organic layer. The common electrode includes a portion overlapping with the fourth portion and a portion overlapping with the second organic layer with the second insulating layer therebetween. The first organic layer and the second organic layer contain the same material.

公开(公告)号：US20240397772A1

公开(公告)日：2024-11-28

申请号：US18695118

申请日：2022-09-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Ryota HODO ,  Yuichi YANAGISAWA

IPC: H10K59/131 ,  H10K50/19 ,  H10K59/12 ,  H10K59/38

Abstract: A display device with high display quality is provided. The display device includes a first light-emitting device, a second light-emitting device, and an insulating layer. The first light-emitting device includes a first pixel electrode, a first EL layer, and a common electrode. The second light-emitting device includes a second pixel electrode, a second EL layer, and the common electrode. The insulating layer includes an opening, and includes a first surface in contact with a side surface of the first pixel electrode, a second surface facing the first surface, and a third surface in contact with a bottom surface of the first EL layer. The insulating layer includes a region where the third surface and the top surface of the first pixel electrode are level or substantially level with each other. In a cross-sectional view, an angle formed between the second surface and the third surface is greater than or equal to 80° and less than or equal to 110°. The first EL layer contains the same material as the second EL layer. The first EL layer is separated from the second EL layer.

公开(公告)号：US20240196713A1

公开(公告)日：2024-06-13

申请号：US18285303

申请日：2022-04-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takayuki IKEDA ,  Yuichi YANAGISAWA ,  Yasumasa YAMANE

IPC: H10K59/80 ,  G09G3/3225 ,  H10K59/38

CPC classification number: H10K59/8791 ,  G09G3/3225 ,  H10K59/38 ,  G09G2300/0852 ,  G09G2310/08

Abstract: A display device that has high display quality is provided. A highly reliable display device is provided. A display device with low power consumption is provided and 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 layer, a second layer over the first layer, and a third layer over the second layer. The first layer includes a first transistor including silicon in a channel formation region. The second layer includes a second transistor including a metal oxide in a channel formation region. The third layer includes a first light-emitting element, a second light-emitting element, a third light-emitting element, an EL layer including a light-emitting layer exhibiting white light, a first coloring layer over the first light-emitting element, a second coloring layer over the second light-emitting element, and a third coloring layer over the third light-emitting element. Crosstalk is not observed between the second light-emitting element and the third light-emitting element.

公开(公告)号：US20240113226A1

公开(公告)日：2024-04-04

申请号：US18368630

申请日：2023-09-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke MATSUBAYASHI ,  Yuichi YANAGISAWA ,  Masahiro TAKAHASHI

IPC: H01L29/786 ,  H01L29/10

CPC classification number: H01L29/7869 ,  H01L29/1095 ,  H01L29/78696

Abstract: A semiconductor device having favorable electrical characteristics is provided. The semiconductor device in which first to third conductors are placed over a first oxide; first and second oxide insulators are placed respectively over the second and third conductors; a second oxide is placed in contact with a side surface of the first oxide insulator, a side surface of the second oxide insulator, and a top surface of the first oxide; a first insulator is placed between the first conductor and the second oxide; and the first oxide insulator and the second oxide insulator are not in contact with the first to third conductors, the first insulator, and the first oxide.

公开(公告)号：US20210373839A1

公开(公告)日：2021-12-02

申请号：US17401423

申请日：2021-08-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kensuke YOSHIZUMI ,  Yuichi YANAGISAWA ,  Kei TAKAHASHI

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

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：US20160019019A1

公开(公告)日：2016-01-21

申请号：US14800033

申请日：2015-07-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hisao IKEDA ,  Nozomu SUGISAWA ,  Yuichi YANAGISAWA

IPC: G06F3/14 ,  G06F3/041

CPC classification number: G06F3/1446 ,  G02F1/13338 ,  G02F2201/40 ,  G06F3/0412 ,  G06F3/042 ,  G09G2300/026 ,  G09G2300/0426 ,  G09G2380/02

Abstract: To provide a display device that is suitable for increasing in size. To provide a display device in which display unevenness is suppressed. In a display device, a plurality of display panels are arranged to partly overlap one another. In two of the overlapping display panels, a display panel positioned on the display surface side includes a region transmitting visible light that is adjacent to a display portion, and the region transmitting visible light overlaps with a pixel of a display panel positioned on the lower side. Furthermore, in at least a display portion of the display panel placed on the lower side, an aperture ratio of the pixel overlapping with the region transmitting visible light of the display panel on the upper side is higher than an aperture ratio of another pixel.

Abstract translation: 提供适合于增加尺寸的显示装置。 为了提供抑制显示不均匀性的显示装置。 在显示装置中，多个显示面板被布置为部分地彼此重叠。 在两个重叠显示面板中，位于显示面侧的显示面板包括透射与显示部相邻的可见光的区域，透过可见光的区域与位于下侧的显示面板的像素重叠 。 此外，在放置在下侧的显示面板的至少一个显示部分中，与上侧显示面板的可见光透射区域重叠的像素的开口率高于另一像素的开口率。

公开(公告)号：US20150145971A1

公开(公告)日：2015-05-28

申请号：US14548843

申请日：2014-11-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yuichi YANAGISAWA ,  Masao KASUGA ,  Hisao IKEDA

IPC: H04N13/04

Abstract: To provide a display device that gives a viewer a strong stereoscopic effect or sense of depth in a two-dimensional image and a display device that gives a viewer a natural stereoscopic effect or sense of depth in a two-dimensional image, a display device includes a frame portion, and a display portion which has a display surface on a frame portion side and is located so as to be apart from the frame portion with a distance therebetween. The display portion overlaps with an opening of the frame portion, and an end portion of the display portion overlaps with the frame portion. The distance between the frame portion and the display portion is variable.

Abstract translation: 为了提供一种显示装置，其向观看者提供二维图像中的强烈的立体效果或深度感，以及向观看者提供二维图像中的自然立体效果或深度感的显示装置，显示装置包括： 框架部分和显示部分，该显示部分在框架部分侧具有显示表面，并且被定位成与框架部分间隔开距离。 显示部分与框架部分的开口重叠，并且显示部分的端部与框架部分重叠。 框架部分和显示部分之间的距离是可变的。

公开(公告)号：US20250098429A1

公开(公告)日：2025-03-20

申请号：US18724014

申请日：2022-12-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yuichi YANAGISAWA ,  Ryota HODO ,  Hiromi SAWAI ,  Yasunori SASAMURA

IPC: H10K59/122 ,  H10K59/38

Abstract: A high-resolution display device is provided. The display device includes a first light-emitting device, a second light-emitting device, a first insulating layer, a second insulating layer, a first coloring layer, and a second coloring layer. The first light-emitting device includes a first pixel electrode, a first layer, and a common electrode in this order over the first insulating layer. The second light-emitting device includes a second pixel electrode, a second layer, and the common electrode in this order over the first insulating layer. The first insulating layer includes a groove including a region overlapping with the first pixel electrode and a region overlapping with the second pixel electrode. The second insulating layer overlaps with a side surface of the first layer, a side surface of the second layer, and the groove. The common electrode includes a portion positioned over the second insulating layer. The first coloring layer overlaps with the first light-emitting device. The second coloring layer overlaps with the second light-emitting device. The second coloring layer and the first coloring layer transmit light of different colors. The first layer and the second layer contain the same light-emitting material and are apart from each other.

公开(公告)号：US20250048909A1

公开(公告)日：2025-02-06

申请号：US18718878

申请日：2022-12-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yuichi YANAGISAWA ,  Daiki NAKAMURA ,  Hiromi SAWAI ,  Ryota HODO

IPC: H10K59/88 ,  H10K59/122 ,  H10K59/80

Abstract: A display apparatus with high display quality is provided. In the display apparatus, a dummy pixel portion is a region that does not contribute to display. The dummy pixel portion is positioned adjacent to the outside of a pixel portion in a plan view. The pixel portion includes a first insulating layer, a first pixel electrode and a second pixel electrode over the first insulating layer, a first layer over the first pixel electrode, a second layer over the second pixel electrode, and a common electrode over the first layer and the second layer. The dummy pixel portion includes the first insulating layer, a first conductive layer and a second conductive layer over the first insulating layer, a third layer over the first conductive layer, a fourth layer over the second conductive layer, and the common electrode over the third layer and the fourth layer. The first insulating layer includes a first groove and a second groove. The first groove includes a first region overlapping with the first pixel electrode and a second region overlapping with the second pixel electrode. The second groove includes a third region overlapping with the first conductive layer and a fourth region overlapping with the second conductive layer.