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公开(公告)号：US20230238369A1
公开(公告)日：2023-07-27
申请号：US17927387
申请日：2021-06-16
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Koji KUSUNOKI , Daisuke KUBOTA , Kazunori WATANABE , Susumu KAWASHIMA , Satoshi YOSHIMOTO
IPC: H01L25/16 , H01L25/075 , H01L33/62 , H01L27/12 , G06V40/13
CPC classification number: H01L25/167 , H01L25/0753 , H01L33/62 , H01L27/1225 , G06V40/1318
Abstract: A display apparatus having a noncontact input function is provided. The display apparatus has a first function of detecting, with a light-receiving device, light irradiated from a light source outside a display portion and blocked by a pointing object to recognize the position pointed by the pointing object, and a second function of detecting, with the light-receiving device, light irradiated from a light source inside or outside the display portion and reflected by the pointing object to recognize the position pointed by the pointing object. The display apparatus can operate by switching the first function and the second function in accordance with the intensity of the light irradiated from the light source outside the display portion.
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公开(公告)号：US20230157123A1
公开(公告)日：2023-05-18
申请号：US17916662
申请日：2021-04-02
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Daisuke KUBOTA , Ryo HATSUMI
CPC classification number: H10K59/40 , H10K59/873 , H01L27/14678
Abstract: An imaging device or a display device that is capable of clearly capturing an image of a fingerprint or the like can be provided. The display device includes a light-receiving element, a light-emitting element, a first substrate, a second substrate, a first resin layer, a second resin layer, and a light-blocking layer. The first resin layer, the second resin layer, and the second substrate are stacked over the first substrate. The light-receiving element and the light-emitting element are positioned between the first substrate and the first resin layer. The light-blocking layer is positioned between the first resin layer and the second resin layer and includes an opening portion overlapping with the light-receiving element. The opening portion in the light-blocking layer is positioned on an inner side of a light-receiving region of the light-receiving element in a plan view, and the width of the opening portion is less than or equal to the width of the light-receiving region. The second substrate is thicker than the first resin layer and the second resin layer. The thickness of a portion of the first resin layer, which overlaps with the light-receiving region of the light-receiving element, is greater than or equal to one time and less than or equal to 10 times as large as the width of the light-receiving region. The second substrate has a higher refractive index than the first resin layer and the second resin layer.
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公开(公告)号：US20230062265A1
公开(公告)日：2023-03-02
申请号：US17841930
申请日：2022-06-16
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Yasuhiro NIIKURA , Daisuke KUBOTA , Taisuke KAMADA , Sachiko KAWAKAMI , Anna TADA , Satoshi SEO
IPC: C07C211/54 , H01L27/28 , C07D209/82 , C07D307/91 , C07D405/12 , C07D409/12 , C07D333/76 , C07C15/38 , C07C15/20 , C07C15/28 , C07D495/22 , C07D495/14 , C07D495/04 , C07D333/18 , C07D471/06 , C07D251/24 , C07D403/14 , C07D401/10 , C07D235/08 , C07D519/00 , C07D409/10 , C07D403/10 , C07D491/048 , C07F7/22 , C07F15/00 , C07D413/10 , C07D405/04 , C07D221/20 , C07D409/14 , C07D219/16 , C07D471/14 , H01L51/00
Abstract: A light-receiving device in which an increase in driving voltage is inhibited is provided. Any of the following light-receiving devices is provided: a light-receiving device that includes a light-receiving layer between a pair of electrodes and in which the light-receiving layer includes an active layer, a buffer layer, and an electron-transport layer, the buffer layer is between the active layer and the electron-transport layer and is in contact with the active layer, and the buffer layer includes an organic compound having an electron-withdrawing group; a light-receiving device that includes a light-receiving layer between a pair of electrodes and in which the light-receiving layer includes an active layer, a buffer layer, and an electron-transport layer, the buffer layer is between the active layer and the electron-transport layer and is in contact with the active layer, and the buffer layer includes a heteroaromatic compound having an electron-withdrawing group.
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公开(公告)号：US20230032743A1
公开(公告)日：2023-02-02
申请号：US17963268
申请日：2022-10-11
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Daisuke KUBOTA , Ryo HATSUMI , Taisuke KAMADA , Koji KUSUNOKI , Kazunori WATANABE , Susumu KAWASHIMA , Kensuke YOSHIZUMI
Abstract: A display device featuring a touch detection and a fingerprint imaging functions is provided. A display device includes a light-emitting element and a light-receiving element. The light-emitting element includes a first pixel electrode, a light-emitting layer, and a common electrode, and the light-receiving element includes a second pixel electrode, an active layer, and the common electrode. The first pixel electrode and the second pixel electrode are provided on the same plane. The common electrode overlaps with the first pixel electrode with the light-emitting layer therebetween, and overlaps with the second pixel electrode with the active layer therebetween. A first conductive layer, a second conductive layer, and an insulating layer are provided above the common electrode. The insulating layer is provided above the first conductive layer, and the second conductive layer is provided above the insulating layer. The light-receiving element has a function of receiving light emitted from the light-emitting element.
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公开(公告)号：US20220216243A1
公开(公告)日：2022-07-07
申请号：US17701961
申请日：2022-03-23
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei YAMAZAKI , Yasuharu HOSAKA , Satoru IDOJIRI , Kenichi OKAZAKI , Hiroki ADACHI , Daisuke KUBOTA
IPC: H01L27/12 , H01L21/683 , H01L29/66 , H01L29/786
Abstract: A peeling method at low cost with high mass productivity is provided. A resin layer having a thickness greater than or equal to 0.1 μm and less than or equal to 3 μm is formed over a formation substrate using a photosensitive and thermosetting material, a transistor including an oxide semiconductor in a channel formation region is formed over the resin layer, the resin layer is irradiated with light using a linear laser device, and the transistor and the formation substrate are separated from each other. A first region and a second region which is thinner than the first region or an opening can be formed in the resin layer. In the case of forming a conductive layer functioning as an external connection terminal or the like to overlap with the second region or the opening of the resin layer, the conductive layer is exposed.
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Patent Agency Ranking
公开(公告)号：US20220107535A1
公开(公告)日：2022-04-07
申请号：US17550081
申请日：2021-12-14
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Ryo HATSUMI , Daisuke KUBOTA , Hiroyuki MIYAKE
IPC: G02F1/1337 , G02F1/1333 , G02F1/1343 , G02F1/1362
Abstract: A display device with less light leakage and excellent contrast is provided. A display device having a high aperture ratio and including a large-capacitance capacitor is provided. A display device in which wiring delay due to parasitic capacitance is reduced is provided. A display device includes a transistor over a substrate, a pixel electrode connected to the transistor, a signal line electrically connected to the transistor, a scan line electrically connected to the transistor and intersecting with the signal line, and a common electrode overlapping with the pixel electrode and the signal line with an insulating film provided therebetween. The common electrode includes stripe regions extending in a direction intersecting with the signal line.
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公开(公告)号：US20220102430A1
公开(公告)日：2022-03-31
申请号：US17420496
申请日：2020-01-08
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Shunpei YAMAZAKI , Koji KUSUNOKI , Daisuke KUBOTA , Taisuke KAMADA
IPC: H01L27/28
Abstract: A display device having a non-contact input function without contact is provided. A first light-emitting device that performs display, a second light-emitting device that emits light for detection, and a light-receiving device are included, and the light-receiving device has a function of detecting light that has been emitted by the second light-emitting device and reflected by an object. Near-infrared light, which has substantially no visibility, is used as the light emitted by the second light-emitting device. Therefore, the light emitted from a display portion even at high luminance does not affect visual recognition of the display. In addition, when the light is emitted at high luminance, an object that is positioned away from the display device can be detected with high sensitivity.
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98.发明申请公开(公告)号：US20220069025A1
公开(公告)日：2022-03-03
申请号：US17414502
申请日：2019-12-19
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei YAMAZAKI , Daisuke KUBOTA , Nobuharu OHSAWA , Takeyoshi WATABE , Taisuke KAMADA
Abstract: A display device that has a function of emitting visible light and infrared light and a function of detecting light. The display device is a display device including a first light-emitting device, a second light-emitting device, and a light-receiving device, in a display portion. The first light-emitting device includes a first pixel electrode, a first optical adjustment layer, a first light-emitting layer, a second light-emitting layer, and a common electrode. The second light-emitting device includes a second pixel electrode, a second optical adjustment layer, the first light-emitting layer, the second light-emitting layer, and the common electrode. The light-receiving device includes a third pixel electrode, an active layer, and the common electrode. The active layer includes an organic compound. The first light-emitting device emits infrared light emitted by the first light-emitting layer. The second light-emitting device emits visible light emitted by the second light-emitting layer. The light-receiving device has a function of absorbing at least part of visible light and infrared light.
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公开(公告)号：US20220037406A1
公开(公告)日：2022-02-03
申请号：US17298805
申请日：2020-04-27
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Daisuke KUBOTA , Ryo HATSUMI , Taisuke KAMADA
Abstract: A display device having a biometric authentication function is provided. A highly convenient display device is provided. The display device includes a first substrate, a light guide plate, a plurality of first light-emitting elements, a second light-emitting element, and a plurality of light-receiving elements. The light guide plate includes a first portion having a first surface and a second portion having a second surface that connects with the first surface and has a different normal direction from the first surface. The first light-emitting elements and the light-receiving elements are provided between the first substrate and the light guide plate. The first light-emitting elements have a function of emitting first light through the light guide plate, and the second light-emitting element has a function of emitting second light to a side surface of the light guide plate. The light-receiving elements have a function of receiving the second light and converting the second light to an electric signal. The first light includes visible light, and the second light includes infrared light.
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公开(公告)号：US20210327979A1
公开(公告)日：2021-10-21
申请号：US17272397
申请日：2019-08-30
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Taisuke KAMADA , Ryo HATSUMI , Daisuke KUBOTA , Daiki NAKAMURA
Abstract: A display device having a photosensing function is provided. A highly convenient display device is provided. The display device includes a light-receiving element and a light-emitting element in a display portion. The light-receiving element includes a first pixel electrode, an active layer, and a common electrode. The light-emitting element includes a second pixel electrode, a light-emitting layer, and a common electrode. The active layer is positioned over the first pixel electrode. The active layer contains a first organic compound. The light-emitting layer is positioned over the second pixel electrode. The light-emitting layer contains a second organic compound different from the first organic compound. The common electrode includes a portion overlapping with the first pixel electrode with the active layer provided therebetween, and a portion overlapping with the second pixel electrode with the light-emitting layer provided therebetween. The display device preferably further includes a common layer positioned over the first pixel electrode and the second pixel electrode. The common layer includes a portion overlapping with the active layer and a portion overlapping with the light-emitting layer.
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