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公开(公告)号：US20150317020A1
公开(公告)日：2015-11-05
申请号：US14691933
申请日：2015-04-21
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kazunori WATANABE , Hiroyuki MIYAKE , Yuji IWAKI , Hideaki SHISHIDO , Kouhei TOYOTAKA , Koji KUSUNOKI
IPC: G06F3/041
CPC classification number: G06F3/044 , G02F1/13338 , G06F3/0412 , G06F2203/04102
Abstract: To increase the detection sensitivity of a touch panel, increase the visibility of a touch panel, provide a bendable touch panel, provide a thin touch panel, or provide a lightweight touch panel. The touch sensor has a first substrate, a first conductive layer, a second conductive layer, and an insulating layer. The first conductive layer includes a region between the first substrate and the second conductive layer. The insulating layer includes a region between the first conductive layer and the second conductive layer. The first conductive layer, the second conductive layer, and the insulating layer form a capacitor. The second conductive layer has an opening. The opening in the second conductive layer and the first conductive layer overlap with each other in a region.
Abstract translation: 为了提高触摸面板的检测灵敏度，增加触摸面板的可视性，提供可弯曲的触摸面板，提供薄的触摸面板或提供轻质的触摸面板。 触摸传感器具有第一基板，第一导电层，第二导电层和绝缘层。 第一导电层包括在第一基板和第二导电层之间的区域。 绝缘层包括在第一导电层和第二导电层之间的区域。 第一导电层，第二导电层和绝缘层形成电容器。 第二导电层具有开口。 第二导电层和第一导电层中的开口在一个区域中彼此重叠。
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公开(公告)号：US20140362324A1
公开(公告)日：2014-12-11
申请号：US14290263
申请日：2014-05-29
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei YAMAZAKI , Hiroyuki MIYAKE , Kouhei TOYOTAKA , Masahiko HAYAKAWA , Daisuke MATSUBAYASHI , Shinpei MATSUDA
IPC: G02F1/1343
CPC classification number: G02F1/134309 , G02F1/133345 , G02F1/1343 , G02F1/136213 , G02F1/13624 , G02F1/1368 , G02F2001/13685 , H01L27/1225 , H01L27/127 , H01L29/78648 , H01L29/7869 , H01L29/78696
Abstract: The following semiconductor device provides high reliability and a narrower frame width. The semiconductor device includes a driver circuit and a pixel portion. The driver circuit has a first transistor including a first gate and a second gate electrically connected to each other with a semiconductor film sandwiched therebetween, and a second transistor electrically connected to the first transistor. The pixel portion includes a third transistor, a liquid crystal element, and a capacitor. The liquid crystal element includes a first transparent conductive film electrically connected to the third transistor, a second conductive film, and a liquid crystal layer. The capacitor includes the first conductive film, a third transparent conductive film, and a nitride insulating film. The nitride insulating film is positioned between the first transparent conductive film and the third transparent conductive film, and positioned between the semiconductor film and the second gate of the first transistor.
Abstract translation: 以下半导体器件提供高可靠性和较窄的帧宽度。 半导体器件包括驱动电路和像素部分。 驱动电路具有包括第一栅极和第二栅极的第一晶体管，其中夹在其间的半导体膜彼此电连接，第二晶体管与第一晶体管电连接。 像素部分包括第三晶体管，液晶元件和电容器。 液晶元件包括与第三晶体管电连接的第一透明导电膜，第二导电膜和液晶层。 电容器包括第一导电膜，第三透明导电膜和氮化物绝缘膜。 氮化物绝缘膜位于第一透明导电膜和第三透明导电膜之间，位于第一晶体管的半导体膜和第二栅极之间。
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公开(公告)号：US20140210808A1
公开(公告)日：2014-07-31
申请号：US14244218
申请日：2014-04-03
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Ryo ARASAWA , Kouhei TOYOTAKA
IPC: G09G3/36
CPC classification number: G09G3/3696 , G09G3/3614 , G09G2320/0247 , G09G2320/103 , G09G2330/021 , G09G2340/16 , H01L27/1225
Abstract: Disclosed is a liquid crystal display device and a driving method thereof for displaying an image, in which the polarity of a voltage applied to the liquid crystal element is inverted in a first frame period and a second frame period which are sequential. The voltage applied to the liquid crystal element is compensated in the case where images of the first frame period and the second frame period are judged as a still image as a result of comparison of the image of the first frame period with the image of the second frame period and the absolute value of the voltage applied to the liquid crystal element in the first frame period is different from that of the voltage applied to the liquid crystal element in the second frame period.
Abstract translation: 公开了一种用于显示图像的液晶显示装置及其驱动方法，其中施加到液晶元件的电压的极性在顺序的第一帧周期和第二帧周期中反转。 作为第一帧周期的图像与第二帧周期的图像的比较的结果，在第一帧周期和第二帧周期的图像被判断为静止图像的情况下，施加到液晶元件的电压被补偿 并且在第一帧周期中施加到液晶元件的电压的绝对值与在第二帧周期中施加到液晶元件的电压的绝对值不同。
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公开(公告)号：US20250095530A1
公开(公告)日：2025-03-20
申请号：US18966199
申请日：2024-12-03
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：US20240373675A1
公开(公告)日：2024-11-07
申请号：US18664587
申请日：2024-05-15
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Susumu KAWASHIMA , Koji KUSUNOKI , Kazunori WATANABE , Kouhei TOYOTAKA , Naoto KUSUMOTO , Shunpei YAMAZAKI
IPC: H10K59/121 , G09G3/3275 , H10K50/11 , H10K59/131
Abstract: To provide a display device capable of performing image processing. Each pixel is provided with a memory circuit in which desired correction data is retained. The correction data is generated by calculation in an external device and written to each pixel. The correction data is added to image data by capacitive coupling and supplied to a display element. Thus, the display element can display a corrected image. Through the correction, image upconversion can be performed, or image quality decreased because of variations in pixel transistor characteristics can be corrected.
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Patent Agency Ranking
公开(公告)号：US20240265877A1
公开(公告)日：2024-08-08
申请号：US18413254
申请日：2024-01-16
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Hidetomo KOBAYASHI , Kouhei TOYOTAKA
IPC: G09G3/3266 , G09G3/3233 , G09G3/34 , G09G3/36 , H10K59/121
CPC classification number: G09G3/3266 , G09G3/3233 , G09G3/3426 , G09G3/3648 , G09G2300/023 , G09G2300/0426 , G09G2300/0439 , G09G2300/0456 , G09G2300/046 , G09G2300/0809 , G09G2300/0842 , G09G2310/0286 , H10K59/1213
Abstract: A display device that can be easily and more flexibly designed is provided. The display device includes a pixel circuit and a driver circuit in a display portion. The driver circuit includes a plurality of pulse output circuits. Each of the plurality of pulse output circuits has a function of driving a gate line. The pixel circuit is electrically connected to the gate line. Each of the plurality of pulse output circuits includes a first transistor. The pixel circuit includes a second transistor. A layer including the second transistor is over a layer including the first transistor, and the first transistor and the second transistor overlap with each other.
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公开(公告)号：US20240138167A1
公开(公告)日：2024-04-25
申请号：US18278199
申请日：2022-02-24
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Hiromichi GODO , Yoshiyuki KUROKAWA , Kouhei TOYOTAKA , Kazuki TSUDA , Satoru OHSHITA , Hidefumi RIKIMARU
IPC: H10K39/34 , G06F3/01 , G09G3/3208 , H10K59/65
CPC classification number: H10K39/34 , G06F3/013 , G09G3/3208 , H10K59/65 , G09G2330/021 , G09G2354/00 , G09G2360/14
Abstract: An electronic device having an eye tracking function is provided. The electronic device includes a display device and an optical system. The display device includes a first light-emitting element, a second light-emitting element, a sensor portion, and a driver circuit portion. The sensor portion includes a light-receiving element. The first light-emitting element has a function of emitting infrared light or visible light. The second light-emitting element has a function of emitting light of a color different from that of light emitted from the first light-emitting element. When the first light-emitting element emits infrared light, the light-receiving element has a function of detecting the infrared light that is emitted from the first light-emitting element and reflected by an eyeball of a user. When the first light-emitting element emits visible light, the light-receiving element has a function of detecting the visible light that is emitted from the first light-emitting element and reflected by the eyeball of the user. The first light-emitting element and the second light-emitting element are placed in one layer. The layer where the first light-emitting element and the second light-emitting element are positioned overlaps with the sensor portion.
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公开(公告)号：US20230138701A1
公开(公告)日：2023-05-04
申请号：US17911147
申请日：2021-03-15
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kouhei TOYOTAKA , Kiyotaka KIMURA , Hidetomo KOBAYASHI , Kei TAKAHASHI
IPC: G09G3/3275
Abstract: A low-power display device is provided. The display device is provided with a plurality of display portions. A data driver circuit and an addition circuit are provided to have a region overlapping with the display portion. First analog data is output from the data driver circuit in the case where first digital data consisting of a first digital value is input to the data driver circuit, whereas second analog data is output from the data driver circuit in the case where second digital data consisting of a second digital value is input to the data driver circuit. The addition circuit generates analog data corresponding to digital data that has a high-order bit that is the first digital value and a low-order bit that is the second digital value, by adding the second analog data to the first analog data. An output terminal of the data driver circuit is directly connected to an input terminal of the addition circuit without through an amplifier circuit.
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公开(公告)号：US20220319462A1
公开(公告)日：2022-10-06
申请号：US17836244
申请日：2022-06-09
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Susumu KAWASHIMA , Kouhei TOYOTAKA , Kei TAKAHASHI
Abstract: A display device that achieves both high-accuracy sensing by a touch sensor unit and smooth input using the touch sensor unit is provided. The display device includes a display unit and the touch sensor unit. The touch sensor unit performs touch sensing operation at a different timing from display image rewriting by the display unit, whereby the high-accuracy sensing can be achieved. The display unit has a function of rewriting a display image only in a region that needs to be rewritten. In the case where the entire display region is not necessarily rewritten, the time for the sensing operation by the touch sensor unit can be lengthened, whereby the smooth input can be achieved.
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公开(公告)号：US20210183294A1
公开(公告)日：2021-06-17
申请号：US17269736
申请日：2019-09-09
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kouhei TOYOTAKA , Kazunori WATANABE , Susumu KAWASHIMA , Daisuke KUBOTA , Tetsuji ISHITANI , Akio YAMASHITA
IPC: G09G3/20
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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