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公开(公告)号：US12243459B2
公开(公告)日：2025-03-04
申请号：US18096117
申请日：2023-01-12
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kouhei Toyotaka , Kazunori Watanabe , Susumu Kawashima , Daisuke Kubota , Tetsuji Ishitani , Akio Yamashita
Abstract: A flip-flop circuit is provided. A driver circuit is provided. The flip-flop circuit includes first to fifth input terminals and first to third output terminals, the first input terminal is supplied with a first trigger signal, the second input terminal is supplied with a second trigger signal, the third input terminal is supplied with a batch selection signal, the fourth input terminal is supplied with a first pulse width modulation signal, and the fifth input terminal is supplied with a second pulse width modulation signal. The first output terminal supplies a first selection signal in response to the first pulse width modulation signal in a period from supply of the first trigger signal to supply of the second trigger signal, the first output terminal supplies the first selection signal in a period during which the batch selection signal is supplied, the second output terminal supplies a second selection signal in response to the second pulse width modulation signal in the period from the supply of the first trigger signal to the supply of the second trigger signal, and the third output terminal supplies a third trigger signal.
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公开(公告)号：US12111545B2
公开(公告)日：2024-10-08
申请号：US18233953
申请日：2023-08-15
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei Yamazaki , Koji Kusunoki , Susumu Kawashima , Daisuke Kubota , Tetsuji Ishitani , Akio Yamashita
IPC: G02F1/1362 , C09K19/38 , G02F1/1333 , G02F1/1343 , G02F1/1368 , G02F1/137
CPC classification number: G02F1/13624 , C09K19/3857 , G02F1/133345 , G02F1/133357 , G02F1/133365 , G02F1/13439 , G02F1/136227 , G02F1/1368 , G02F1/13756
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.
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公开(公告)号：US11906826B2
公开(公告)日：2024-02-20
申请号：US18093400
申请日：2023-01-05
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei Yamazaki , Tetsuji Ishitani
IPC: G02F1/13 , G02F1/1333 , H01L27/12
CPC classification number: G02F1/1303 , G02F1/133305 , H01L27/1218 , H01L27/1266
Abstract: Disclosed is a liquid crystal display device which can be used in a variety of situations and applications. The liquid crystal display device comprises: a first substrate comprising a first display region, a second display region, and a third display region wherein the first display region, the second display region, and the third display region are continuously formed; a second substrate having a form which fits the first substrate; and a liquid crystal interposed between the first substrate and the second substrate. The second display region is interposed between the first display region and the second display region. The second display region is curved, and the first display region and the second display region are substantially flat.
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公开(公告)号：US11536889B2
公开(公告)日：2022-12-27
申请号：US17296832
申请日：2019-12-02
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Shunpei Yamazaki , Ryo Hatsumi , Tetsuji Ishitani , Akio Yamashita
IPC: G02F1/1362 , F21V8/00 , G02F1/137 , G02F1/1337 , G02F1/1343 , G02F1/1368 , H01L27/12
Abstract: A novel display device that is highly convenient, useful, or reliable is provided. The display device includes a light guide plate, a display panel, and an intermediate layer, and the light guide plate includes a first surface and a second surface. The first surface is irradiated with light, the second surface has a function of distributing light, the second surface is in contact with the intermediate layer, and the second surface has a first refractive index N1 in a region in contact with the intermediate layer. The display panel faces the second surface, the display panel is in contact with the intermediate layer, and the display panel has a function of scattering the distributed light. The intermediate layer includes a region positioned between the second surface and the display panel, and the intermediate layer has a second refractive index N2 in a region in contact with the second surface. The second refractive index N2 is smaller than the first refractive index N1.
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公开(公告)号：US11372276B2
公开(公告)日：2022-06-28
申请号：US17123392
申请日：2020-12-16
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei Yamazaki , Yoshiharu Hirakata , Tetsuji Ishitani , Daisuke Kubota , Ryo Hatsumi , Masaru Nakano , Takashi Hamada
IPC: G02F1/1333
Abstract: A display device including a peripheral circuit portion with high operation stability. The display device includes a first substrate and a second substrate. A first insulating layer is on a first plane of the first substrate, and a second insulating layer is on a first plane of the second substrate. An area of the first plane of the first substrate is the same as an area of the first plane of the second substrate. The first plane of the first substrate and the first plane of the second substrate face each other. A bonding layer is between the first insulating layer and the second insulating layer. A protection film is in contact with the first substrate, the first insulating layer, the bonding layer, the second insulating layer, and the second substrate.
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Patent Agency Ranking
公开(公告)号：US10985282B2
公开(公告)日：2021-04-20
申请号：US16377620
申请日：2019-04-08
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Tetsuji Ishitani , Daisuke Kubota
IPC: H01L29/786 , G02F1/1335 , H01L27/12 , G02F1/1368 , G02F1/1362
Abstract: To provide a liquid crystal display device suitable for a thin film transistor which uses an oxide semiconductor. In a liquid crystal display device which includes a thin film transistor including an oxide semiconductor layer, a film having a function of attenuating the intensity of transmitting visible light is used as an interlayer film which covers at least the oxide semiconductor layer. As the film having a function of attenuating the intensity of transmitting visible light, a coloring layer can be used and a light-transmitting chromatic color resin layer is preferably used. An interlayer film which includes a light-transmitting chromatic color resin layer and a light-blocking layer may be formed in order that the light-blocking layer is used as a film having a function of attenuating the intensity of transmitting visible light.
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公开(公告)号：US10095071B2
公开(公告)日：2018-10-09
申请号：US15155094
申请日：2016-05-16
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Tetsuji Ishitani , Daisuke Kubota
IPC: G02F1/1343 , G02F1/1335 , G02F1/1362 , G02F1/1368
Abstract: A liquid crystal display device is provided, which includes a transistor including an oxide semiconductor layer, a resin layer, a first electrode layer, a second electrode layer having an opening, and a liquid crystal layer. One of the first electrode layer and the second electrode layer is a pixel electrode layer which is electrically connected to the transistor, and the other of the first electrode layer and the second electrode layer is a common electrode layer. The liquid crystal display device is configured to display an image by a lateral electric field mode.
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公开(公告)号：US10020350B2
公开(公告)日：2018-07-10
申请号：US15203934
申请日：2016-07-07
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei Yamazaki , Yoshiharu Hirakata , Tetsuji Ishitani , Kenichi Okazaki , Hajime Kimura
IPC: H01L27/32 , G02F1/133 , G02F1/1335 , G02F1/1362 , G02F1/1368 , G06F3/041 , H01L29/786 , G02F1/1333
CPC classification number: H01L27/3232 , G02F1/13306 , G02F1/133345 , G02F1/13338 , G02F1/133553 , G02F1/136286 , G02F1/1368 , G02F2001/133626 , G02F2201/44 , G06F3/041 , G06F3/0412 , G06F3/0416 , H01L27/3244 , H01L29/7869
Abstract: A novel display panel that can be used as a reflective display panel in an environment with strong external light and as a self-luminous display panel in a dim environment, for example and that has low power consumption and is highly convenient or reliable is provided. The display panel includes a pixel and a substrate that supports the pixel. The pixel includes a first display element (e.g., a reflective liquid crystal element) that includes a reflective film having an opening as a first conductive film and a second display element (e.g., an organic EL element) that emits light to the opening.
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公开(公告)号：US09614096B2
公开(公告)日：2017-04-04
申请号：US13890421
申请日：2013-05-09
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Tetsuji Ishitani , Daisuke Kubota
IPC: H01L29/786 , H01L27/12 , G02F1/1335 , G02F1/1368 , G02F1/1362
Abstract: To provide a liquid crystal display device suitable for a thin film transistor which uses an oxide semiconductor. In a liquid crystal display device which includes a thin film transistor including an oxide semiconductor layer, a film having a function of attenuating the intensity of transmitting visible light is used as an interlayer film which covers at least the oxide semiconductor layer. As the film having a function of attenuating the intensity of transmitting visible light, a coloring layer can be used and a light-transmitting chromatic color resin layer is preferably used. An interlayer film which includes a light-transmitting chromatic color resin layer and a light-blocking layer may be formed in order that the light-blocking layer is used as a film having a function of attenuating the intensity of transmitting visible light.
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公开(公告)号：US09057017B2
公开(公告)日：2015-06-16
申请号：US13677636
申请日：2012-11-15
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Manabu Kobayashi , Tetsuji Ishitani , Yuko Kawata , Tomohiro Tamura
CPC classification number: C09K19/3068 , C09K19/0275 , C09K19/2007 , C09K19/586 , C09K2019/2035 , C09K2019/3083
Abstract: A liquid crystal composition exhibiting a blue phase, which enables higher contrast, and a liquid crystal display device including the liquid crystal composition. The liquid crystal composition contains a chiral agent and liquid crystal containing a compound having three electron-withdrawing groups as end groups of a structure where a plurality of rings including at least one aromatic ring is linked to each other directly or with a linking group laid therebetween. At least one of the three electron-withdrawing groups includes a trifluoromethyl group. The peak of the diffracted wavelength on the longest wavelength side in the reflectance spectrum of the liquid crystal composition is less than or equal to 450 nm, preferably less than or equal to 420 nm. Furthermore, a liquid crystal display device can be provided with the use of the liquid crystal composition.
Abstract translation: 具有能够提高对比度的蓝相的液晶组合物和包括该液晶组合物的液晶显示装置。 液晶组合物含有手性试剂和含有具有三个吸电子基团的化合物的液晶，作为其中包含至少一个芳环的多个环直接连接或连接在其间的连接基团的结构的端基 。 三个吸电子基团中的至少一个包括三氟甲基。 液晶组合物的反射光谱中最长波长侧的衍射波长的峰值小于或等于450nm，优选小于或等于420nm。 此外，可以提供使用液晶组合物的液晶显示装置。
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