公开(公告)号：US20240107799A1

公开(公告)日：2024-03-28

申请号：US18533282

申请日：2023-12-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Daiki NAKAMURA ,  Ryo HATSUMI ,  Rai SATO ,  Shingo EGUCHI ,  Koji KUSUNOKI

IPC: H10K50/858 ,  G02B3/00 ,  G02B27/09 ,  G06F3/0354 ,  G06F3/041 ,  G06F3/042 ,  G06F3/147 ,  G09F9/30 ,  G09G3/30 ,  G09G3/3225 ,  H05B33/02 ,  H10K50/00 ,  H10K59/00 ,  H10K59/12 ,  H10K59/60

CPC classification number: H10K50/858 ,  G02B3/00 ,  G02B3/0056 ,  G02B27/0955 ,  G06F3/03545 ,  G06F3/0412 ,  G06F3/042 ,  G06F3/0421 ,  G06F3/147 ,  G09F9/30 ,  G09G3/30 ,  G09G3/3225 ,  H05B33/02 ,  H10K50/00 ,  H10K59/00 ,  H10K59/12 ,  H10K59/60 ,  G06F3/16

Abstract: A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a base material and a pair of pixels, and the base material covers the pair of pixels and has a light-transmitting property. The pair of pixels includes one pixel and another pixel, and the one pixel includes a light-emitting device and a first microlens. The light-emitting device emits light toward the base material, and the first microlens is interposed between the base material and the light emission and converges light. The first microlens includes a first surface and a second surface; the second surface is closer to the light-emitting device than the first surface is; and the second surface has a smaller radius of curvature than the first surface. The other pixel includes a photoelectric conversion device and a second microlens. The second microlens is interposed between the base material and the photoelectric conversion and converges external light incident from the base material side. The second microlens includes a third surface and a fourth surface; the third surface is closer to the photoelectric conversion device than the fourth surface is; and the fourth surface has a smaller radius of curvature than the third surface.

公开(公告)号：US20240099054A1

公开(公告)日：2024-03-21

申请号：US18524839

申请日：2023-11-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Shingo EGUCHI

IPC: H10K50/844 ,  H10K50/84 ,  H10K50/842 ,  H10K59/12 ,  H10K59/124 ,  H10K59/131 ,  H10K59/38

CPC classification number: H10K50/8445 ,  H10K50/84 ,  H10K50/8426 ,  H10K50/844 ,  H10K59/12 ,  H10K59/124 ,  H10K59/131 ,  H10K59/38 ,  H10K50/865

Abstract: A highly reliable light-emitting device is provided. Damage to an element due to externally applied physical power is suppressed. Alternatively, in a process of pressure-bonding of an FPC, damage to a resin and a wiring which are in contact with a flexible substrate due to heat is suppressed. A neutral plane at which stress-strain is not generated when a flexible light-emitting device including an organic EL element is deformed, is positioned in the vicinity of a transistor and the organic EL element. Alternatively, the hardness of the outermost surface of a light-emitting device is high. Alternatively, a substrate having a coefficient of thermal expansion of 10 ppm/K or lower is used as a substrate that overlaps with a terminal portion connected to an FPC.

公开(公告)号：US20240057462A1

公开(公告)日：2024-02-15

申请号：US18258104

申请日：2021-12-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shingo EGUCHI ,  Hiroki ADACHI ,  Kenichi OKAZAKI ,  Yasumasa YAMANE ,  Naoto KUSUMOTO ,  Kensuke YOSHIZUMI ,  Shunpei YAMAZAKI

IPC: H10K71/20 ,  H10K71/16 ,  H01L21/677 ,  G03F7/00

CPC classification number: H10K71/233 ,  H10K71/16 ,  H01L21/67706 ,  G03F7/0007

Abstract: Manufacturing equipment of a display device that is capable of successively performing steps from formation of a pixel circuit up to formation of a light-emitting element is provided. The manufacturing equipment includes a manufacturing apparatus of a light-emitting device that is capable of successively performing a film formation step, a lithography step, an etching step, and a sealing step for formation of an organic EL element and a manufacturing apparatus for formation of a pixel circuit that drives the organic EL element. Formation from the pixel circuit up to the organic EL element can be performed successively, so that a display device with a high yield and high reliability can be formed.

公开(公告)号：US20230420614A1

公开(公告)日：2023-12-28

申请号：US18037371

申请日：2021-11-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Shingo EGUCHI ,  Tomoya AOYAMA ,  Daiki NAKAMURA ,  Kenichi OKAZAKI

IPC: H01L33/38 ,  H01L25/075

CPC classification number: H01L33/38 ,  H01L25/0753 ,  H01L2933/0016

Abstract: A high-resolution, high-definition, or large display apparatus is provided. A metal mask is placed over an EL layer and film deposition is performed with the metal mask, whereby an island-shaped counter electrode is formed. Then, the EL layer is processed using the counter electrode as a hard mask. Alternatively, after an EL layer and a counter electrode are formed over an entire surface, processing using a metal mask is performed. An insulating layer that electrically insulates adjacent pixel electrodes from each other is positioned between adjacent light-emitting devices. A resist mask is formed over the insulating layer. A plurality of EL layers and a plurality of counter electrodes overlapping each other over the insulating layer are partly removed using the resist mask, whereby part of the insulating layer is exposed. Thus, the adjacent light-emitting devices are electrically insulated from each other over the insulating layer.

公开(公告)号：US20230403881A1

公开(公告)日：2023-12-14

申请号：US18033846

申请日：2021-11-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Shingo EGUCHI ,  Satoshi SEO ,  Kenichi OKAZAKI

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

CPC classification number: H10K59/122 ,  H10K59/38 ,  H10K59/1201

Abstract: A novel display panel that is highly convenient, useful, or reliable is provided. The display panel includes a first light-emitting device, a second light-emitting device, and a partition, the first light-emitting device includes a first electrode, a second electrode, and a first layer, and the first layer includes a region interposed between the second electrode and the first electrode. The first layer contains a first material having a hole-transport property and a first substance having an acceptor property, and has a predetermined electrical resistivity. The second light-emitting device includes a third electrode, a fourth electrode, and a second layer, and the second layer includes a region interposed between the fourth electrode and the third electrode. The second layer contains the first material having the hole-transport property and the first substance having the acceptor property, and the second layer includes a first gap between the second layer and the first layer. The first gap includes a region overlapping with the partition, and the first gap prevents electrical continuity between the first layer and the second layer.

公开(公告)号：US20220367775A1

公开(公告)日：2022-11-17

申请号：US17773929

申请日：2020-10-29

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Koji KUSUNOKI ,  Shingo EGUCHI ,  Takayuki IKEDA

IPC: H01L33/62 ,  H01L27/15 ,  H01L33/00 ,  H01L33/50

Abstract: A display unit with high resolution is provided. A display unit with high display quality is provided. A display unit includes a transistor, a light-emitting diode, a first conductive layer over the transistor and electrically connected to the transistor, a second conductive layer over the first conductive layer and electrically connected to the light-emitting diode, a first insulating layer over the transistor, and a second insulating layer over the first insulating layer. The top surface of the first conductive layer is substantially level with the top surface of the first insulating layer, and the bottom surface of the second conductive layer is substantially level with the bottom surface of the second insulating layer. The first insulating layer and the second insulating layer are bonded to each other, and the first conductive layer and the second conductive layer are bonded to each other.

公开(公告)号：US20220246889A1

公开(公告)日：2022-08-04

申请号：US17622912

申请日：2020-06-24

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Daiki NAKAMURA ,  Ryo HATSUMI ,  Rai SATO ,  Shingo EGUCHI

IPC: H01L51/52 ,  H01L27/32

Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. A novel functional panel that is highly convenient, useful, or reliable is provided. The light-emitting device includes an insulating film, a group of structure bodies, a layer containing a light-emitting material, a first electrode, and a second electrode. The group of structure bodies includes a structure body and a different structure body, a first distance is provided between the different structure body and the structure body, the insulating film includes a first surface, the structure body includes a sidewall, the sidewall forms a first angle with the first surface, and the first angle is greater than 0° and less than or equal to 90°. The layer containing a light-emitting material includes a first region and a second region, the first region is interposed between the second electrode and the first electrode, light is emitted from the first region, the second region is interposed between the second electrode and the sidewall, and the sidewall reflects light. The first electrode includes a third region, and the third region is interposed between the first region and the first surface.

公开(公告)号：US20210327865A1

公开(公告)日：2021-10-21

申请号：US17270081

申请日：2019-08-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Koji KUSUNOKI ,  Shingo EGUCHI ,  Takayuki IKEDA

IPC: H01L25/18 ,  H01L25/00 ,  H01L25/065 ,  H01L25/16 ,  H01L33/00 ,  H01L23/00 ,  G06F3/044

Abstract: A display device with high resolution is provided. A display device with high display quality is provided. The display device includes a substrate, an insulating layer, a plurality of transistors, and a plurality of light-emitting diodes. The plurality of light-emitting diodes are provided in a matrix over the substrate. Each of the plurality of transistors is electrically connected to at least one of the plurality of light-emitting diodes. The plurality of light-emitting diodes are positioned closer to the substrate than the plurality of transistors are. The plurality of light-emitting diodes emit light toward the substrate. Each of the plurality of transistors includes a metal oxide layer and a gate electrode. The metal oxide layer includes a channel formation region. The top surface of the gate electrode is substantially level with the top surface of the insulating layer.

公开(公告)号：US20200243626A1

公开(公告)日：2020-07-30

申请号：US16845517

申请日：2020-04-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shingo EGUCHI ,  Shunpei YAMAZAKI

IPC: H01L27/32 ,  G06F3/047 ,  H01L51/52 ,  G09G5/00 ,  G06F3/044

Abstract: A flexible input/output device and an input/output device having high resistance to repeated bending are provided. The input/output device includes a first flexible substrate, a first insulating layer over the first substrate, a first transistor over the first insulating layer, a light-emitting element over and electrically connected to the first transistor and including an EL layer between first and second electrodes, a first bonding layer over the light-emitting element, a sensing element and a second transistor over the first bonding layer and electrically connected to each other, a second insulating layer over the sensing element and the second transistor, and a second flexible substrate over the second insulating layer. In the input/output device, B/A is greater than or equal to 0.7 and less than or equal to 1.7, where A is a thickness between the EL layer and the first insulating layer and B is a thickness between the EL layer and the second insulating layer.

公开(公告)号：US20190326538A1

公开(公告)日：2019-10-24

申请号：US16458575

申请日：2019-07-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shingo EGUCHI ,  Yoshiaki OIKAWA ,  Kenichi OKAZAKI ,  Hotaka MARUYAMA

IPC: H01L51/50 ,  H01L51/00 ,  H01L27/32 ,  H01L27/12

Abstract: An object of the invention is to improve the reliability of a light-emitting device. Another object of the invention is to provide flexibility to a light-emitting device having a thin film transistor using an oxide semiconductor film. A light-emitting device has, over one flexible substrate, a driving circuit portion including a thin film transistor for a driving circuit and a pixel portion including a thin film transistor for a pixel. The thin film transistor for a driving circuit and the thin film transistor for a pixel are inverted staggered thin film transistors including an oxide semiconductor layer which is in contact with a part of an oxide insulating layer.