公开(公告)号：US20240349546A1

公开(公告)日：2024-10-17

申请号：US18594460

申请日：2024-03-04

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kaoru HATANO ,  Satoshi SEO ,  Takaaki NAGATA ,  Tatsuya OKANO

IPC: H10K59/124 ,  G02F1/1362 ,  G06F1/16 ,  H01L27/12 ,  H01L29/786 ,  H01L33/42 ,  H01L33/48 ,  H10K50/125 ,  H10K50/828 ,  H10K50/84 ,  H10K50/842 ,  H10K50/844 ,  H10K50/86 ,  H10K59/12 ,  H10K59/30 ,  H10K59/38 ,  H10K71/80 ,  H10K77/10 ,  H10K101/00 ,  H10K102/00

CPC classification number: H10K59/124 ,  H01L27/1214 ,  H01L27/1266 ,  H01L29/78678 ,  H01L33/48 ,  H10K50/84 ,  H10K50/8423 ,  H10K50/8426 ,  H10K50/844 ,  H10K59/38 ,  H10K77/111 ,  G02F1/136209 ,  G02F1/136222 ,  G06F1/1641 ,  H01L27/1225 ,  H01L33/42 ,  H10K50/125 ,  H10K50/828 ,  H10K50/865 ,  H10K59/12 ,  H10K59/1201 ,  H10K59/30 ,  H10K71/80 ,  H10K2101/27 ,  H10K2102/311 ,  H10K2102/351 ,  Y02E10/549 ,  Y02P70/50

Abstract: It is an object to provide a flexible light-emitting device with long lifetime in a simple way and to provide an inexpensive electronic device with long lifetime using the flexible light-emitting device. A flexible light-emitting device is provided, which includes a substrate having flexibility and a light-transmitting property with respect to visible light; a first adhesive layer over the substrate; an insulating film containing nitrogen and silicon over the first adhesive layer; a light-emitting element including a first electrode, a second electrode facing the first electrode, and an EL layer between the first electrode and the second electrode; a second adhesive layer over the second electrode; and a metal substrate over the second adhesive layer, wherein the thickness of the metal substrate is 10 μm to 200 μm inclusive. Further, an electronic device using the flexible light-emitting device is provided.

公开(公告)号：US20240292648A1

公开(公告)日：2024-08-29

申请号：US18645743

申请日：2024-04-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Hiromi SEO ,  Kunihiko SUZUKI ,  Kanta ABE ,  Yuji IWAKI ,  Naoaki HASHIMOTO ,  Tsunenori SUZUKI

IPC: H10K50/16 ,  H10K50/11 ,  H10K50/15 ,  H10K50/17 ,  H10K50/81 ,  H10K50/82 ,  H10K59/00 ,  H10K85/30 ,  H10K101/40

CPC classification number: H10K50/16 ,  H10K50/11 ,  H10K50/15 ,  H10K50/171 ,  H10K50/81 ,  H10K50/82 ,  H10K59/00 ,  H10K85/321 ,  H10K2101/40

Abstract: A novel light-emitting device is provided. A light-emitting device with high emission efficiency is provided. A light-emitting device with a long lifetime is provided. A light-emitting device with low driving voltage is provided. The light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a hole-injection layer, a light-emitting layer, and an electron-transport layer. The hole-injection layer is positioned between the anode and the light-emitting layer. The electron-transport layer is positioned between the light-emitting layer and the cathode. The hole-injection layer contains a first substance and a second substance. The first substance is an organic compound which has a hole-transport property and a HOMO level higher than or equal to −5.7 eV and lower than or equal to −5.4 eV. The second substance exhibits an electron-accepting property with respect to the first substance. The electron-transport layer contains a material whose resistance decreases with current flowing therethrough.

公开(公告)号：US20240284766A1

公开(公告)日：2024-08-22

申请号：US18569497

申请日：2022-06-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuharu OHSAWA ,  Takumu OKUYAMA ,  Satoshi SEO

IPC: H10K59/80 ,  H10K59/131

CPC classification number: H10K59/878 ,  H10K59/131

Abstract: A novel display device that is highly convenient, useful, or reliable is provided. The display device includes a first light-emitting device, a second light-emitting device, an insulating film, a conductive film, a first reflective film, and a second reflective film; the first light-emitting device includes a first electrode, a second electrode, and a first unit; and the first electrode is interposed between the first unit and the insulating film. The second light-emitting device includes a third electrode, a fourth electrode, and a second unit; the third electrode is interposed between the second unit and the insulating film; and a first gap is provided between the third electrode and the first electrode. The conductive film electrically connects the second electrode and the fourth electrode to each other, and the first gap is interposed between the conductive film and the insulating film. The first reflective film is interposed between the first electrode and the insulating film, and there is a first distance DR between the first reflective film and the second electrode. The second reflective film is interposed between the third electrode and the insulating film, and there is a second distance DG between the second reflective film and the fourth electrode. The second distance DG is longer than the first distance DR and the difference is larger than 20 nm and smaller than 85 nm.

公开(公告)号：US20240244732A1

公开(公告)日：2024-07-18

申请号：US18289069

申请日：2022-05-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takashi SHINGU ,  Tsunenori SUZUKI ,  Satoshi SEO ,  Haruki KATAGIRI ,  Noboru INOUE ,  Kazuhiko FUJITA ,  Toshiki SASAKI ,  Hideko YOSHIZUMI

IPC: H05B47/165 ,  F21V1/14 ,  F21Y115/15

CPC classification number: H05B47/165 ,  F21V1/146 ,  F21Y2115/15

Abstract: Provided is a novel light adjustment program that can make a human feel at ease. Provided is the light adjustment program that includes the steps of obtaining basic data having 1/f fluctuation characteristics; generating first smoothed data and second smoothed data by performing moving average processing with different periods on the basic data having 1/f fluctuation characteristics; generating light adjustment data by subjecting the first smoothed data and the second smoothed data to arithmetic processing; and changing luminance of a light-emitting device in time series in accordance with the light adjustment data.

公开(公告)号：US20240196745A1

公开(公告)日：2024-06-13

申请号：US18498700

申请日：2023-10-31

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kaori OGITA ,  Satoshi SEO ,  Hiromi SEO ,  Tatsuyoshi TAKAHASHI

IPC: H10K85/60 ,  H10K50/11 ,  H10K101/10

CPC classification number: H10K85/6576 ,  H10K85/633 ,  H10K85/636 ,  H10K50/11 ,  H10K85/6572 ,  H10K85/6574 ,  H10K2101/10

Abstract: A novel organic compound that forms an exciplex emitting light with high efficiency is provided. An organic compound with a triarylamine skeleton in which the three aryl groups of the triarylamine skeleton are a p-biphenyl group, a fluoren-2-yl group, and a phenyl group to which a dibenzofuranyl group or a dibenzothiophenyl group is bonded. By the use of the organic compound and an organic compound with an electron-transport property, an exciplex that emits light with extremely high efficiency can be formed.

公开(公告)号：US20240121990A1

公开(公告)日：2024-04-11

申请号：US18262408

申请日：2022-01-13

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Satoshi SEO

IPC: H10K59/122 ,  H10K59/80

CPC classification number: H10K59/122 ,  H10K59/80515 ,  H10K59/35

Abstract: A light-emitting apparatus can be provided at low cost. The light-emitting apparatus includes a plurality of partitions formed over an insulating surface and extending in a first direction, a plurality of pixel electrodes each having an island shape formed over the insulating surface, an EL layer formed over the pixel electrodes, and a second electrode formed over the EL layer. The partition has an insulating property, the pixel electrodes that are aligned in the first direction are positioned column by column between adjacent partitions in the plurality of partitions, and the EL layer is in contact with the insulating surface between the pixel electrodes adjacent to each other in the first direction in the pixel electrodes aligned in the first direction.

公开(公告)号：US20240065038A1

公开(公告)日：2024-02-22

申请号：US18271582

申请日：2022-01-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Satoshi SEO

IPC: H10K59/122 ,  H10K50/15 ,  H10K50/17 ,  H10K59/12 ,  H10K59/131 ,  H10K59/35 ,  H10K59/80 ,  H10K71/13 ,  H10K71/60 ,  H10K77/10

CPC classification number: H10K59/122 ,  H10K50/15 ,  H10K50/17 ,  H10K59/1201 ,  H10K59/131 ,  H10K59/35 ,  H10K59/80515 ,  H10K71/135 ,  H10K71/60 ,  H10K77/111 ,  H10K2102/351

Abstract: A display device in which a puddle in the vicinity of a partition of a light-emitting element is reduced when a light-emitting layer is formed by a wet process is provided. The display device includes a first anode; a second anode adjacent to the first anode in an X direction; a third anode adjacent to the first anode in a Y direction; a hole-injection layer provided across the first anode to the third anode; a partition provided over the hole-injection layer; a first light-emitting layer; a second light-emitting layer; a third light-emitting layer; and a cathode. The partition includes, in a top view, a first region positioned between the first anode and the third anode and extending in the X direction, and a second region positioned between the first anode and the second anode and extending in the Y direction. The height of the first region is larger than the height of the second region in a cross-sectional view of the partition.

公开(公告)号：US20240065014A1

公开(公告)日：2024-02-22

申请号：US18382693

申请日：2023-10-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Takeyoshi WATABE ,  Tomohiro KUBOTA ,  Airi UEDA ,  Satoshi SEO ,  Nobuharu OHSAWA ,  Yuko KUBOTA

IPC: H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K85/60

CPC classification number: H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K85/626

Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.

公开(公告)号：US20230403876A1

公开(公告)日：2023-12-14

申请号：US18233361

申请日：2023-08-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Satoshi SEO ,  Koji KUSUNOKI ,  Kei TAKAHASHI

IPC: H10K50/115 ,  G09G3/3225 ,  H10K59/121

CPC classification number: H10K50/115 ,  G09G3/3225 ,  H10K59/1213 ,  G09G2300/0842

Abstract: A display device having a high display quality is provided. A display device that can perform desired display without image data conversion is provided. The display device includes a first pixel. The first pixel includes a first light-emitting element, a color conversion layer, and a first memory circuit. The first light-emitting element exhibits blue light. The color conversion layer has a function of converting light emitted by the first light-emitting element into light having a longer wavelength. A first image signal and a first correction signal are supplied to the first pixel. The first memory circuit has a function of retaining the first correction signal and a function of adding the first correction signal to the first image signal. The first pixel has a function of displaying an image using the first image signal and the first correction signal.

公开(公告)号：US20230337462A1

公开(公告)日：2023-10-19

申请号：US17928659

申请日：2021-06-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Airi UEDA ,  Takeyoshi WATABE ,  Yuta KAWANO ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H10K50/858 ,  H10K50/16 ,  H10K50/15

CPC classification number: H10K50/858 ,  H10K50/166 ,  H10K50/156 ,  H10K2101/30

Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. The light-emitting device includes a first electrode, a second electrode, a unit, and a first layer. The unit is positioned between the first electrode and the second electrode and includes a second layer, a third layer, and a fourth layer. The second layer is positioned between the third layer and the fourth layer and contains a light-emitting material. The third layer is positioned between the second layer and the second electrode, is in contact with the second layer, and contains a first material, and an organometallic complex of an alkali metal or an organometallic complex of an alkaline earth metal. The fourth layer is positioned between the first electrode and the second layer and contains a second material. The first layer is positioned between the first electrode and the unit and contains a second material and a material having an electron acceptor property. The second material has a first refractive index. The first refractive index is higher than or equal to 1.5 and lower than or equal to 1.75 in a wavelength range of 455 nm to 465 nm inclusive. The second material has a HOMO level. The HOMO level is higher than or equal to −5.7 eV and lower than or equal to −5.3 eV.