公开(公告)号：US12276889B1

公开(公告)日：2025-04-15

申请号：US17044515

申请日：2019-03-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu Kawashima ,  Tetsuji Ishitani ,  Kouhei Toyotaka ,  Koji Kusunoki ,  Daisuke Kubota ,  Akio Yamashita

IPC: G02F1/1362 ,  G02F1/1334 ,  G02F1/1368

Abstract: A display device including a circuit suitable for controlling a liquid crystal element is provided. The display device includes two memories in one pixel and a plurality of pixels arranged in the horizontal and vertical directions share a gate line. The display device includes a liquid crystal element and by writing charges to different polarity capacitors, power consumption in an inversion operation can be reduced. Furthermore, a liquid crystal element with a high threshold voltage can be suitably used and a wide range of voltages can be applied without impairing grayscale display characteristics in the display device. Furthermore, a voltage higher than or equal to an output voltage of a source driver can be applied to the liquid crystal element.

公开(公告)号：US11785827B2

公开(公告)日：2023-10-10

申请号：US17521283

申请日：2021-11-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei Yamazaki ,  Kohei Yokoyama ,  Takaaki Nagata ,  Tatsuya Sakuishi ,  Akio Yamashita ,  Yasuhiro Jinbo ,  Hideaki Shishido ,  Tetsuji Ishitani

IPC: H10K59/50 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: H10K59/50 ,  G02F1/1368 ,  G02F1/133345 ,  G02F1/136286 ,  G02F2203/64

Abstract: A display device that can switch between normal display and see-through display is provided. Visibility in see-through display is improved. A liquid crystal element overlaps with a light-emitting element. The light-emitting element, a transistor, and the like overlapping with the liquid crystal element transmit visible light. When the liquid crystal element blocks external light, an image is displayed with the light-emitting element. When the liquid crystal element transmits external light, an image displayed with the light-emitting element is superimposed on a transmission image through the liquid crystal element.

公开(公告)号：US20230132153A1

公开(公告)日：2023-04-27

申请号：US17942324

申请日：2022-09-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Anna Tada ,  Sachiko Kawakami ,  Daisuke Kubota ,  Kazuya Sugimoto ,  Yasuhiro Niikura ,  Akio Yamashita

IPC: H01L51/00 ,  C07D209/88

Abstract: Provided is a highly convenient, useful, or reliable novel organic compound represented by General Formula (G1), where A1 represents any of hydrogen, deuterium, an alkyl group having 1 to 13 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, an aryl group having 6 to 25 carbon atoms, a heteroaryl group having 2 to 25 carbon atoms, and a diarylamino group; Ar1 to Ar4 each independently represent any of an aryl group having 6 to 25 carbon atoms, a heteroaryl group having 2 to 25 carbon atoms, and a diarylamino group; and R1 to R6 each independently represent any of hydrogen, deuterium, an alkyl group having 1 to 13 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, an aryl group having 6 to 25 carbon atoms, a heteroaryl group having 2 to 25 carbon atoms, and an alkoxy group having 1 to 13 carbon atoms.

公开(公告)号：US09927653B2

公开(公告)日：2018-03-27

申请号：US14645469

申请日：2015-03-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Akio Yamashita ,  Yumiko Ohno ,  Yuugo Goto

IPC: G02F1/1335 ,  G02B5/20 ,  G02B5/22 ,  B32B37/12 ,  B32B37/24 ,  B32B38/10

CPC classification number: G02F1/133516 ,  B32B37/12 ,  B32B37/24 ,  B32B38/10 ,  B32B2037/243 ,  B32B2457/202 ,  B32B2551/00 ,  G02B5/201 ,  G02B5/223

Abstract: To provide a method of manufacturing an optical film formed on a plastic substrate. There is provided a method of manufacturing an optical film including the steps of laminating a separation layer and an optical filter on a first substrate, separating the optical filter from the first substrate, attaching the optical filter to a second substrate. Since the optical film manufactured according to the invention has flexibility, it can be provided on a portion or a display device having a curved surface. Further, the optical film is not processed at high temperatures, and hence, an optical film having high yield with high reliability can be formed. Furthermore, an optical film having an excellent impact resistance property can be formed.

公开(公告)号：US12279522B2

公开(公告)日：2025-04-15

申请号：US17727158

申请日：2022-04-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke Kubota ,  Taisuke Kamada ,  Yasuhiro Niikura ,  Ryo Hatsumi ,  Akio Yamashita ,  Sachiko Kawakami ,  Anna Tada ,  Satoshi Seo

IPC: H10K85/30 ,  C07D209/82 ,  C07D219/16 ,  C07D221/20 ,  C07D307/91 ,  C07D333/76 ,  C07D401/04 ,  C07D401/06 ,  C07D403/10 ,  C07D405/04 ,  C07D409/10 ,  C07D413/10 ,  C07D519/00 ,  C07F7/22 ,  C07F15/00 ,  H10K30/20 ,  H10K50/16 ,  H10K65/00 ,  H10K85/60

Abstract: To provide a novel photoelectric conversion device that is highly convenient, useful, or reliable. The photoelectric conversion device includes a first electrode, a second electrode, and a first unit. The first unit is located between the first electrode and the second electrode. The first unit contains a first electron-donating material and a first electron-accepting material. The first electron-donating material is a condensed aromatic compound, and the first electron-accepting material has a perylene skeleton and two or more alkyl groups. The alkyl groups each independently have 1 to 13 carbon atoms.

公开(公告)号：US10401662B2

公开(公告)日：2019-09-03

申请号：US15994059

申请日：2018-05-31

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Yoshiharu Hirakata ,  Daisuke Kubota ,  Akio Yamashita

IPC: G02F1/1333 ,  G02F1/1341 ,  G06F3/041 ,  H01L29/786 ,  H01L27/12 ,  G06F3/044 ,  G02F1/1343 ,  G02F1/1368 ,  H01L29/04

Abstract: To provide a highly reliable liquid crystal display device including flexible substrates and a crystalline oxide semiconductor film for a backplane. The device includes a flexible first substrate, a flexible second substrate facing the first substrate, and a liquid crystal layer sealed between the substrates with a sealing member. The first substrate is provided with a layer including a transistor, an organic resin film over the transistor, a pixel electrode and a common electrode over the organic resin film, which partly overlap with each other with an insulating film provided therebetween, and an alignment film thereover. The transistor includes a crystalline oxide semiconductor film as a semiconductor layer where a channel is formed. Drying treatment is performed on the layer before the liquid crystal layer is sealed between the substrates, and steps from the drying treatment to sealing of the liquid crystal layer are performed without exposure to the air.

公开(公告)号：US09666752B2

公开(公告)日：2017-05-30

申请号：US14659968

申请日：2015-03-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Akio Yamashita ,  Yumiko Fukumoto ,  Yuugo Goto

IPC: H01L33/00 ,  H01L27/15 ,  H01L27/32 ,  G02F1/1333 ,  H01L51/52 ,  H01L51/00 ,  H01L51/56 ,  H01L27/12

CPC classification number: H01L33/005 ,  G02F1/1333 ,  G02F1/133305 ,  H01L27/1214 ,  H01L27/1266 ,  H01L27/15 ,  H01L27/322 ,  H01L27/3244 ,  H01L51/003 ,  H01L51/524 ,  H01L51/56 ,  H01L2227/326 ,  H01L2933/0025

Abstract: To provide a method of manufacturing a display device having an excellent impact resistance property with high yield, in particular, a method of manufacturing a display device having an optical film that is formed using a plastic substrate. The method of manufacturing a display device includes the steps of: laminating a metal film, an oxide film, and an optical filter on a first substrate; separating the optical filter from the first substrate; attaching the optical filter to a second substrate; forming a layer including a pixel on a third substrate; and attaching the layer including the pixel to the optical filter.

公开(公告)号：US11774816B2

公开(公告)日：2023-10-03

申请号：US17288690

申请日：2019-10-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Susumu Kawashima ,  Daisuke Kubota ,  Tetsuji Ishitani ,  Akio Yamashita

IPC: G02F1/1362 ,  G02F1/1333 ,  G02F1/137 ,  C09K19/38 ,  G02F1/1343 ,  G02F1/1368

CPC classification number: G02F1/13624 ,  C09K19/3857 ,  G02F1/1368 ,  G02F1/13439 ,  G02F1/13756 ,  G02F1/133345 ,  G02F1/133357 ,  G02F1/133365 ,  G02F1/136227

Abstract: A display device with a high aperture ratio is provided. The display device includes, in a pixel, a first transistor, a second transistor, a first insulating layer, a second insulating layer, a conductive layer, a pixel electrode, a layer containing a liquid crystal material, and a common electrode. The first insulating layer is positioned over a channel formation region of the first transistor. The conductive layer is positioned over the first insulating layer. The second insulating layer is positioned over the first transistor, the second transistor, the first insulating layer, and the conductive layer. The pixel electrode is positioned over the second insulating layer, the layer containing a liquid crystal material is positioned over the pixel electrode, and the common electrode is positioned over the layer containing a liquid crystal material. The common electrode overlaps with the conductive layer with the layer containing a liquid crystal material and the pixel electrode therebetween. The pixel includes a first connection portion where the conductive layer is electrically connected to the first transistor and a second connection portion where the pixel electrode is electrically connected to the second transistor. The conductive layer, the pixel electrode, and the common electrode each have a function of transmitting visible light.

公开(公告)号：US10180605B2

公开(公告)日：2019-01-15

申请号：US15658653

申请日：2017-07-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke Kubota ,  Koji Kusunoki ,  Akio Yamashita

IPC: G02F1/1345 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1347

Abstract: A high-image-quality display device having a transmissive mode and a reflective mode is provided. Furthermore, the display device is manufactured with higher yield and higher productivity. In the display device, a transistor used for a transmissive liquid crystal display element, the transmissive liquid crystal display element, a transistor used for a reflective liquid crystal display element, and the reflective liquid crystal display element are stacked in this order between a pair of substrates. In a manufacturing process, one or two manufacturing substrates are used in addition to the pair of substrates included in the display device. The display device is manufactured in such a manner that a second liquid crystal and a second sealant provided to surround the second liquid crystal are bonded to a first liquid crystal sealed using a first sealant. The bonding process is performed such that the first sealant and the second sealant overlap with each other. Moreover, an end portion of the first sealant which is in contact with the first liquid crystal is substantially aligned with or positioned closer to the inner side of the display device than an end portion of the second sealant which is in contact with the second liquid crystal.

公开(公告)号：US10007133B2

公开(公告)日：2018-06-26

申请号：US15437599

申请日：2017-02-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Yoshiharu Hirakata ,  Daisuke Kubota ,  Akio Yamashita

IPC: G02F1/1333 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1341 ,  G06F3/044 ,  G06F3/041 ,  G02F1/1343 ,  H01L27/12 ,  H01L29/786 ,  H01L29/04

CPC classification number: G02F1/1333 ,  G02F1/133305 ,  G02F1/133345 ,  G02F1/13338 ,  G02F1/1341 ,  G02F1/134309 ,  G02F1/1368 ,  G02F2001/13415 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2202/10 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103 ,  H01L27/1225 ,  H01L29/045 ,  H01L29/7869 ,  H01L29/78696

Abstract: To provide a highly reliable liquid crystal display device including flexible substrates and a crystalline oxide semiconductor film for a backplane. The device includes a flexible first substrate, a flexible second substrate facing the first substrate, and a liquid crystal layer sealed between the substrates with a sealing member. The first substrate is provided with a layer including a transistor, an organic resin film over the transistor, a pixel electrode and a common electrode over the organic resin film, which partly overlap with each other with an insulating film provided therebetween, and an alignment film thereover. The transistor includes a crystalline oxide semiconductor film as a semiconductor layer where a channel is formed. Drying treatment is performed on the layer before the liquid crystal layer is sealed between the substrates, and steps from the drying treatment to sealing of the liquid crystal layer are performed without exposure to the air.