公开(公告)号：US20230324962A1

公开(公告)日：2023-10-12

申请号：US17790774

申请日：2020-12-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Taiki NONAKA ,  Kazuhiko FUJITA ,  Akio ENDO ,  Yuta ISHIKAWA

IPC: G06F1/16 ,  H04M1/02

CPC classification number: G06F1/1681 ,  G06F1/1641 ,  G06F1/1652 ,  H04M1/0268 ,  H04M1/022

Abstract: An angle adjustment device capable of being kept at a desired angle is provided. The angle adjustment device can fix and keep the relative positions of the first base component and the second base component, and a support with a combination of the angle adjustment device and components such as a flat plate can keep the entire body in a shape opened on a plane, a folded shape, a shape kept at a desired angle, or the like. In addition, the angle adjustment device can make a bending movement in one direction, which prevents bending in a reverse direction. Therefore, it is possible to prevent an accidental bending movement of an apparatus including the angle adjustment device to prevent breakage or the like of the apparatus.

公开(公告)号：US20210336168A1

公开(公告)日：2021-10-28

申请号：US17370752

申请日：2021-07-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daiki NAKAMURA ,  Kazuhiko FUJITA

IPC: H01L51/00 ,  H01L51/52

Abstract: When a base film used in a flexible display panel is bonded to a resin member for fixing the base film that is curved, the base film has creases by an environmental change such as temperature due to difference in linear expansion coefficient before and after a thermal shock. A buffer plate that is thin enough to be bent is provided between the base film used in a flexible display panel and the resin member. With the use of heat dissipation effect and heat equalization effect of the buffer plate, a structure around the panel capable of resisting the environmental change can be provided.

公开(公告)号：US20210191468A1

公开(公告)日：2021-06-24

申请号：US17270574

申请日：2019-08-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daiki Nakamura ,  Kazuhiko FUJITA

IPC: G06F1/16 ,  G09F9/30 ,  G02B1/14 ,  G06F3/041

Abstract: Damage to a flexible display can be prevented. A display device having improved mechanical strength can be provided. A display device (10) includes a display panel (11) and a protection cover (12). The display panel (11) includes a first portion having flexibility. The protection cover (12) has a light-transmitting property and flexibility and is provided to overlap with a display surface side of the display panel (11). The display device (10) has a function of being reversibly changed in shape to a first mode in which the display panel (11) and the protection cover (12) are each substantially flat and a second mode in which the first portion of the display panel (11) is curved such that the display surface side becomes a concave surface and part of the protection cover (12) is curved in the same direction as the first portion. In the second mode, there is a gap between the first portion and the protection cover.

公开(公告)号：US20200059581A1

公开(公告)日：2020-02-20

申请号：US16661582

申请日：2019-10-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yoshiharu Hirakata ,  Nobuharu OHSAWA ,  Hisao IKEDA ,  Kazuhiko FUJITA ,  Akihiro KAITA

IPC: H04N5/225 ,  H05B33/08 ,  H04N5/232 ,  H01L51/52 ,  H04N5/235 ,  G03B15/03 ,  G03B15/05

Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.

公开(公告)号：US20240187720A1

公开(公告)日：2024-06-06

申请号：US18537311

申请日：2023-12-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yoshiharu HIRAKATA ,  Nobuharu OHSAWA ,  Hisao IKEDA ,  Kazuhiko FUJITA ,  Akihiro KAITA

IPC: H04N23/56 ,  G03B15/03 ,  G03B15/05 ,  H04N23/63 ,  H04N23/74 ,  H05B44/00 ,  H10K50/814 ,  H10K50/858

CPC classification number: H04N23/56 ,  G03B15/03 ,  G03B15/05 ,  H04N23/63 ,  H04N23/74 ,  H05B44/00 ,  H10K50/814 ,  H10K50/858 ,  G03B2215/0567 ,  H10K59/1201

Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.

公开(公告)号：US20230269987A1

公开(公告)日：2023-08-24

申请号：US18139004

申请日：2023-04-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daiki Nakamura ,  Shingo EGUCHI ,  Tomoya AOYAMA ,  Nozomu SUGISAWA ,  Junya MARUYAMA ,  Kazuhiko FUJITA ,  Masataka SATO ,  Susumu KAWASHIMA

IPC: H10K59/35 ,  G06F1/16 ,  H10K59/131 ,  H10K77/10

CPC classification number: H10K59/353 ,  G06F1/1624 ,  G06F1/1652 ,  G06F1/1681 ,  H10K59/131 ,  H10K59/352 ,  H10K77/111 ,  H10K50/14

Abstract: Display unevenness in a display panel is suppressed. A display panel with a high aperture ratio of a pixel is provided. The display panel includes a first pixel electrode, a second pixel electrode, a third pixel electrode, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, a first common layer, a second common layer, a common electrode, and an auxiliary wiring. The first common layer is positioned over the first pixel electrode and the second pixel electrode. The first common layer has a portion overlapping with the first light-emitting layer and a portion overlapping with the second light-emitting layer. The second common layer is positioned over the third pixel electrode. The second common layer has a portion overlapping with the third light-emitting layer. The common electrode has a portion overlapping with the first pixel electrode with the first common layer and the first light-emitting layer provided therebetween, a portion overlapping with the second pixel electrode with the first common layer and the second light-emitting layer provided therebetween, a portion overlapping with the third pixel electrode with the second common layer and the third light-emitting layer provided therebetween, and a portion in contact with a top surface of the auxiliary wiring.

公开(公告)号：US20250148941A1

公开(公告)日：2025-05-08

申请号：US19011723

申请日：2025-01-07

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shingo EGUCHI ,  Taiki NONAKA ,  Daiki NAKAMURA ,  Nozomu SUGISAWA ,  Kazuhiko FUJITA ,  Shunpei YAMAZAKI

IPC: G09F9/30 ,  G06F1/16 ,  H05K5/00 ,  H05K5/02 ,  H10K59/12 ,  H10K77/10

Abstract: A novel display panel that is highly convenient, useful, or reliable is provided. The display panel includes a display region, a first support, and a second support, the display region includes a first region, a second region, and a third region, the first region and the second region each have a belt-like shape extending in one direction, and the third region is sandwiched between the first region and the second region. The first support overlaps with the first region and is less likely to be warped than the third region, and the second support overlaps with the second region and is less likely to be warped than the third region. The second support can pivot on an axis extending in the one direction with respect to the first support.

公开(公告)号：US20240121497A1

公开(公告)日：2024-04-11

申请号：US18526638

申请日：2023-12-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yoshiharu HIRAKATA ,  Nobuharu OHSAWA ,  Hisao IKEDA ,  Kazuhiko FUJITA ,  Akihiro KAITA

IPC: H04N23/56 ,  G03B15/03 ,  G03B15/05 ,  H04N23/63 ,  H04N23/74 ,  H05B44/00 ,  H10K50/814 ,  H10K50/858

CPC classification number: H04N23/56 ,  G03B15/03 ,  G03B15/05 ,  H04N23/63 ,  H04N23/74 ,  H05B44/00 ,  H10K50/814 ,  H10K50/858 ,  G03B2215/0567 ,  H10K59/1201

Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.

公开(公告)号：US20200052231A1

公开(公告)日：2020-02-13

申请号：US16497839

申请日：2018-03-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daiki NAKAMURA ,  Kazuhiko FUJITA

IPC: H01L51/00 ,  H01L51/52

Abstract: When a base film used in a flexible display panel is bonded to a resin member for fixing the base film that is curved, the base film has creases by an environmental change such as temperature due to difference in linear expansion coefficient before and after a thermal shock. A buffer plate that is thin enough to be bent is provided between the base film used in a flexible display panel and the resin member. With the use of heat dissipation effect and heat equalization effect of the buffer plate, a structure around the panel capable of resisting the environmental change can be provided.

公开(公告)号：US20200043381A1

公开(公告)日：2020-02-06

申请号：US16485920

申请日：2018-02-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yosuke TSUKAMOTO ,  Daiki NAKAMURA ,  Daisuke FURUMATSU ,  Kazuhiko FUJITA ,  Kyoichi MUKAO ,  Junya MARUYAMA

IPC: G09F9/30 ,  G09F9/40 ,  H01L51/50 ,  H05B33/06

Abstract: A plurality of display panels having a curved surface are placed in a limited space. Two, or three or more display panels are combined to form one display region having a T-shaped outer edge as one screen, and a driver can curve part of the display panel as appropriate so that the driver can see the screen easily. A first display panel or a second display panel has flexibility and includes a position adjustment function of curving an end portion. That is, by curving part of the display panel, the user can see the display panel easily. The in-car design can also be varied.