公开(公告)号：US10451912B2

公开(公告)日：2019-10-22

申请号：US15647787

申请日：2017-07-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Hisao Ikeda ,  Fumito Isaka

IPC: G02F1/1335 ,  G02F1/136 ,  H01L27/32 ,  G02F1/1362 ,  H01L27/28 ,  G02F1/1333

Abstract: A display device includes a display panel and a control portion. The control portion has a function of receiving image data, and a function of generating and supplying first data and second data on the basis of the image data. The display panel includes a pixel and an optical element. The pixel includes a first display element and a second display element. The second display element includes a region adjacent to the first display element. The optical element includes a first region overlapping with the second display element. The first region has a function of directing light which enters a region overlapping with the second display element to the first display element. The first display element is a reflective display element. The second display element is a light-emitting element.

公开(公告)号：US10345670B2

公开(公告)日：2019-07-09

申请号：US15666701

申请日：2017-08-02

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao Ikeda ,  Fumito Isaka ,  Shunpei Yamazaki

IPC: G02F1/1368 ,  H01L51/52 ,  H01L27/32 ,  G02F1/1333 ,  H01L29/786 ,  G02F1/1335 ,  H01L27/12 ,  H01L29/66

Abstract: To display a high-quality video regardless of a usage environment. To provide a display device which is lightweight and less likely to be broken. To reduce power consumption of the display device. The display device includes a first display element, a first transistor connected to the first display element, a second display element, and a second transistor connected to the second display element. The first display element is a reflective display element. The first display element and the first transistor are bonded to the second display element and the second transistor with an adhesive layer. Light from the second display element is extracted to the display surface on the first display element side. The light is condensed or guided by a light-condensing means or a light-guiding means provided in a path of the light from the second display element to the display surface.

公开(公告)号：US20180095559A1

公开(公告)日：2018-04-05

申请号：US15718434

申请日：2017-09-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Shingo Eguchi ,  Hisao Ikeda ,  Daisuke Kubota ,  Fumito Isaka

IPC: G06F3/044 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1362 ,  G06F3/041

CPC classification number: G06F3/044 ,  G02F1/133345 ,  G02F1/13338 ,  G02F1/133526 ,  G02F1/133553 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2201/44 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/042

Abstract: To provide a novel display panel with high convenience or high reliability. The display panel includes a pixel including a functional layer, a first display element, and a second display element. The functional layer includes a pixel circuit and includes a region positioned between the first and second display elements. The pixel circuit is electrically connected to the first and second display elements. The first display element includes a reflective film and is configured to control the intensity of light reflected by the reflective film. The reflective film has a shape that does not block light emitted from the second display element. The second display element includes a light-emitting element and is provided such that display using the second display element can be seen from part of a region where display using the first display element can be seen.

公开(公告)号：US11985881B2

公开(公告)日：2024-05-14

申请号：US17254753

申请日：2019-06-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao Ikeda ,  Fumito Isaka

IPC: H10K59/38 ,  G06F3/041 ,  G09G3/32 ,  H10K50/125 ,  H10K50/852 ,  H10K59/131 ,  H10K59/40

CPC classification number: H10K59/38 ,  G06F3/0416 ,  G09G3/32 ,  H10K50/125 ,  H10K50/852 ,  H10K59/131 ,  H10K59/40 ,  G09G2354/00

Abstract: A novel display panel that is highly convenient, useful, or reliable is provided. The display panel includes a display region and includes a first pixel, a second pixel, a third pixel, and a filter. The first pixel emits light with a spectrum having a local maximum at a first wavelength, the second pixel emits light with a spectrum having a local maximum at a second wavelength, and the third pixel emits light with a spectrum having a local maximum at a third wavelength. The filter includes a region overlapping with the first pixel, a region overlapping with the second pixel, and a region overlapping with the third pixel, and the filter has a transmittance spectrum having local minimums at a fourth wavelength and a fifth wavelength. The second wavelength is longer than the first wavelength. The third wavelength is longer than the second wavelength. The fourth wavelength is between the first wavelength and the second wavelength. The fifth wavelength is between the second wavelength and the third wavelength.

公开(公告)号：US09257562B2

公开(公告)日：2016-02-09

申请号：US14636589

申请日：2015-03-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Akihisa Shimomura ,  Hidekazu Miyairi ,  Fumito Isaka ,  Yasuhiro Jinbo ,  Junya Maruyama

IPC: H01L21/00 ,  H01L29/786 ,  H01L21/20 ,  H01L27/12 ,  H01L21/02 ,  H01L29/66

CPC classification number: H01L21/02683 ,  H01L21/02422 ,  H01L21/02532 ,  H01L21/02592 ,  H01L21/02686 ,  H01L21/2026 ,  H01L27/1214 ,  H01L27/1266 ,  H01L27/1285 ,  H01L29/66757 ,  H01L29/78603 ,  H01L29/78675

Abstract: It is an object to provide a method of manufacturing a crystalline silicon device and a semiconductor device in which formation of cracks in a substrate, a base protective film, and a crystalline silicon film can be suppressed. First, a layer including a semiconductor film is formed over a substrate, and is heated. A thermal expansion coefficient of the substrate is 6×10−7/° C. to 38×10−7/° C., preferably 6×10−7/° C. to 31.8×10−7/° C. Next, the layer including the semiconductor film is irradiated with a laser beam to crystallize the semiconductor film so as to form a crystalline semiconductor film. Total stress of the layer including the semiconductor film is −500 N/m to +50 N/m, preferably −150 N/m to 0 N/m after the heating step.

公开(公告)号：US20250015194A1

公开(公告)日：2025-01-09

申请号：US18763108

申请日：2024-07-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Tsutomu Murakawa ,  Fumito Isaka ,  Hitoshi Kunitake ,  Yasuhiro Jinbo

IPC: H01L29/786 ,  H10B12/00

Abstract: A transistor that can be miniaturized is provided. The semiconductor device includes an oxide semiconductor layer, first to fourth conductive layers, and first to fourth insulating layers. Over the first conductive layer including a depressed portion, the first insulating layer, the second conductive layer, the second insulating layer, and the third conductive layer which include a first opening portion overlapping with the depressed portion are provided in this order. The third insulating layer is in contact with at least the side surface of the second conductive layer in the first opening portion. The oxide semiconductor layer is in contact with the top surface of the third conductive layer and the bottom and side surfaces of the depressed portion, and is in contact with the third insulating layer in the first opening portion. The fourth insulating layer is on an inner side of the oxide semiconductor layer in the first opening portion. The fourth conductive layer is on an inner side of the fourth insulating layer in the first opening portion. In a cross-sectional view, the oxide semiconductor layer includes a region overlapping with the second conductive layer with the third insulating layer therebetween and overlapping with the fourth conductive layer with the fourth insulating layer therebetween.

公开(公告)号：US10153460B2

公开(公告)日：2018-12-11

申请号：US15671443

申请日：2017-08-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Fumito Isaka ,  Hisao Ikeda

IPC: G02F1/1335 ,  H01L51/52 ,  H01L27/32 ,  G09G3/3225 ,  G09G3/36 ,  G09G3/34

Abstract: A light extraction efficiency is increased in a display device having a plurality of display elements. The display device includes a first display element and a second display element over the first display element, and the first display element has a convex-concave shape. The convex-concave shape overlaps with a first opening provided in a reflective electrode of the second display element. A user can see an image that combines the display from the first display element and the display from the second display element. The convex-concave shape increases the light extraction efficiency of the first display element. The second display element is electrically connected to a transistor through a second opening provided in any layer of the first display element. The second display element can be provided close to the first display element.