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公开(公告)号：US20240237376A9
公开(公告)日：2024-07-11
申请号：US18546685
申请日：2022-02-14
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Koji KUSUNOKI , Kazunori WATANABE , Tomoaki ATSUMI , Satoshi YOSHIMOTO
IPC: H10K39/34 , G06F3/042 , G06V40/13 , G09G3/3233 , H10K59/131
CPC classification number: H10K39/34 , G06F3/042 , G06V40/1318 , G09G3/3233 , H10K59/131 , G06F2203/04108 , G09G2300/0819 , G09G2300/0852 , G09G2354/00 , G09G2360/14
Abstract: A semiconductor device having a light sensing function and including a high-resolution display portion is provided. The semiconductor device includes a plurality of pixels, and the pixels each include first and second light-receiving devices, first to fifth transistors, a capacitor, and a first wiring. One electrode of the first light-receiving device is electrically connected to the first wiring, and the other electrode is electrically connected to one of a source and a drain of the first transistor. One electrode of the second light-receiving device is electrically connected to the first wiring, and the other electrode is electrically connected to one of a source and a drain of the second transistor. The other of the source and the drain of the second transistor is electrically connected to the other of the source and the drain of the first transistor. The other of the source and the drain of the first transistor is electrically connected to one electrode of the capacitor, one of a source and a drain of the third transistor, and a gate of the fourth transistor.
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公开(公告)号：US20240173014A1
公开(公告)日：2024-05-30
申请号：US18281654
申请日：2022-03-28
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei YAMAZAKI , Koji KUSUNOKI , Kazunori WATANABE , Tatsunori INOUE
CPC classification number: A61B8/10 , A61B3/12 , A61B8/06 , G02B27/017 , G06T19/006
Abstract: An electronic device capable of measuring the blood flow speed in a retina blood vessel or the like of an eye is provided. The electronic device includes a display portion, a sending portion, a receiving portion, and a control circuit. The sending portion has a function of generating a first ultrasonic wave with a first frequency and a function of sending a first electric signal corresponding to the first frequency to the control circuit. The receiving portion has a function of receiving a second ultrasonic wave, which is the first ultrasonic wave reflected by an object, with a second frequency, a function of generating a second electric signal corresponding to the second frequency, and a function of sending the second electric signal to the control circuit. Note that the object is one or more selected from a retina blood vessel and a blood vessel included in a retina of a user's eye. The control circuit has a function of calculating the blood flow speed in one or more selected from the retina blood vessel and the blood vessel with the use of the first electric signal and the second electric signal and a function of sending a third electric signal corresponding to the blood flow speed to the display portion. The display portion has a function of receiving the third electric signal and displaying the blood flow speed.
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公开(公告)号：US20240144879A1
公开(公告)日：2024-05-02
申请号：US18279110
申请日：2022-02-22
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Satoshi YOSHIMOTO , Susumu KAWASHIMA , Kazunori WATANABE , Tomoaki ATSUMI , Koji KUSUNOKI
IPC: G09G3/3233
CPC classification number: G09G3/3233 , H10K59/35
Abstract: Provided is a highly reliable semiconductor device. The present invention relates to a shift register circuit including a plurality of stages of sequential circuits. An output signal of a sequential circuit is input to a sequential circuit in the subsequent stage. Before a sequential circuit outputs a signal and after the sequential circuit outputs the signal, the potential of a gate of a transistor included in the sequential circuit is changed in accordance with a clock signal so as to avoid voltage stress application between the gate and a source of the transistor for a long time. The shift register circuit can be applied to a scan line driver circuit of a display apparatus, for example.
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公开(公告)号：US20240069398A1
公开(公告)日：2024-02-29
申请号：US18388288
申请日：2023-11-09
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kei Takahashi , Susumu KAWASHIMA , Koji KUSUNOKI , Kouhei TOYOTAKA , Kazunori WATANABE
IPC: G02F1/1362 , G02F1/133 , G02F1/1368 , G02F1/137 , G09G3/20 , G09G3/36
CPC classification number: G02F1/136286 , G02F1/133 , G02F1/1368 , G02F1/137 , G09G3/20 , G09G3/2085 , G09G3/36 , G09G3/3611 , G09G3/3648 , G09G3/3655 , G09G3/3659 , G02F1/13793
Abstract: A display apparatus includes a data generation circuit, a source driver circuit, and a pixel. The source driver circuit is electrically connected to the pixel through first and second wirings. The pixel includes a display device that is a liquid crystal device, a potential of one electrode of the display device can be a potential of the first wiring, and a potential of the other electrode of the display device can be a potential of the second wiring. The image data generation circuit has a function of generating digital image data including first and second data. One of the first and second wirings is made to have a potential corresponding to first data, and the other of the first and second wirings is made to have a potential corresponding to the second_data. The potential of the first wiring and the potential of the second wiring are interchanged.
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公开(公告)号：US20240049543A1
公开(公告)日：2024-02-08
申请号：US18266847
申请日：2021-12-14
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Koji KUSUNOKI , Kazunori WATANABE , Satoshi YOSHIMOTO , Tomoaki ATSUMI , Daisuke KUBOTA , Naoto KUSUMOTO
IPC: H10K59/131 , H10K59/80
CPC classification number: H10K59/1315 , H10K59/80522
Abstract: A high-resolution display device with reduced display unevenness is provided. In the display device, a plurality of pixels are included over a substrate; each of the plurality of pixels includes a transistor and a light-emitting element; the light-emitting element includes a first electrode, an EL layer over the first electrode, and a second electrode over the EL layer; the first electrode is electrically connected to the transistor; in the plurality of pixels, the first electrodes in adjacent pixels are separated by an insulating layer; the second electrode includes a conductive material having light-transmitting property with respect to visible light; the second electrode of each of the plurality of pixels is shared; and light is emitted from the second electrode side. A wiring is included; in a plane view with respect to the substrate, the wiring is placed in a region where the EL layer is not placed; and the second electrode is placed over and in contact with the wiring.
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Patent Agency Ranking
公开(公告)号：US20240028680A1
公开(公告)日：2024-01-25
申请号：US18237437
申请日：2023-08-24
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satoshi YOSHIMOTO , Susumu KAWASHIMA , Koji KUSUNOKI , Kazunori WATANABE
CPC classification number: G06F21/32 , G06F3/04164 , G06V40/1318 , G06F3/0412
Abstract: A semiconductor device including a biometric recognition function and a touch sensor or near touch sensor function is provided. The semiconductor device includes a light-emitting device and an imaging device. The imaging device includes a gate driver circuit and m rows of pixels (m is an integer more than or equal to 2). The gate driver circuit includes a plurality of first register circuits and second register circuits whose number is less than that of the first register circuits. The first register circuits are connected with each other in series and the second register circuits are connected with each other in series. The gate driver circuit has a function of operating in the first mode and the second mode. In the first mode, the first register circuits are in the on state and the second register circuits are in the off state, and in the second mode, the second register circuits are in the on state and the first register circuits are in the off state.
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公开(公告)号：US20240021150A1
公开(公告)日：2024-01-18
申请号：US18372738
申请日：2023-09-26
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kei TAKAHASHI , Koji KUSUNOKI , Kazunori WATANABE , Susumu KAWASHIMA , Kouhei TOYOTAKA , Shunpei YAMAZAKI
CPC classification number: G09G3/32 , H01L27/1225 , H01L27/124 , H01L27/1255 , G09G2300/0809 , G09G2310/0243 , G09G2310/06 , H01L25/0753
Abstract: A novel display is provided. A display having a small change in chromaticity of a micro light-emitting diode in proportion to current density is provided. A display capable of reducing power consumption in the driver circuit when displaying a still image is provided. The display includes a plurality of pixels each including a display element and a microcontroller. The microcontroller includes a first transistor, a triangular wave generator circuit, a comparator, a switch, and a constant current circuit. The first transistor has a function of retaining a potential corresponding to data written to the pixel by being switched off. The triangular wave generator circuit has a function of generating a triangular wave signal. The comparator has a function of generating an output signal corresponding to the potential and the triangular wave signal. The switch has a function of controlling whether or not to make a current flowing in the constant current circuit flow to the display element in accordance with the output signal.
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公开(公告)号：US20230412935A1
公开(公告)日：2023-12-21
申请号：US18251576
申请日：2021-10-26
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kazunori WATANABE , Satoshi YOSHIMOTO , Koji KUSUNOKI , Susumu KAWASHIMA , Motoharu SAITO
IPC: H04N25/44 , H04N25/713 , G06V40/13
CPC classification number: H04N25/44 , H04N25/713 , G06V40/1318
Abstract: A semiconductor device capable of performing authentication in a short time can be provided. The semiconductor device includes a light-emitting unit and an imaging unit. The imaging unit includes a row driver circuit, and the row driver circuit includes first to m latch circuits (m is an integer greater than or equal to 2) and first to m register circuits. A first start pulse signal is input to a first latch circuit and second start pulse signals are input to first to m latch circuits. Scan signals output from the first to (m−1)-th register circuits are input to the second to m-th latch circuits, respectively. The first latch circuit has a function of outputting one of the first start pulse signal and the second start pulse signal to the first register circuit on the basis of data held, and the second to m-th latch circuits have a function of outputting one of the scan signal and the second start pulse signal to the second to m-th register circuits on the basis of data held.
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公开(公告)号：US20230221811A1
公开(公告)日：2023-07-13
申请号：US18008623
申请日：2021-06-07
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kazunori WATANABE , Koji KUSUNOKI , Naoto KUSUMOTO , Kensuke YOSHIZUMI , Yoshiaki OIKAWA
IPC: G06F3/0354 , H10K39/00
CPC classification number: G06F3/03542 , H10K39/601
Abstract: An electronic device having a noncontact input function is provided. The electronic device includes a display device and an input device and is capable of performing an input operation even without contact. The display device includes a light-emitting device and a light-receiving device in a display portion. The input device includes a light source. The light-receiving device has a function of detecting light emitted from the light source included in the input device. Infrared light that has substantially no spectral luminous efficacy is used as the light emitted from the light source included in the input device. Therefore, even irradiation of the display portion with the light at high luminance does not affect visual recognition of the display. This structure enables a noncontact input operation with respect to the display device.
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公开(公告)号：US20230176433A1
公开(公告)日：2023-06-08
申请号：US17041599
申请日：2019-03-19
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei YAMAZAKI , Kouhei TOYOTAKA , Satoshi YOSHIMOTO , Kazunori WATANABE , Susumu KAWASHIMA , Kei TAKAHASHI
IPC: G02F1/1362 , G09G3/36 , G09G3/32
CPC classification number: G02F1/136286 , G09G3/3648 , G09G3/32 , G02F1/1368
Abstract: Display data of pixels is updated at different timings. A scan line is connected to a first pixel and a second pixel, a first wiring is connected to the first pixel, and a second wiring is connected to the second pixel. In a first period, a signal for selecting the first pixel and the second pixel is supplied to the scan line. Setting data for setting a state where the display data of the first pixel is updated is supplied to the first wiring, and setting data for setting a state where the display data of the second pixel is updated is supplied to the second wiring. In a second period, a signal for selecting the first pixel and the second pixel is supplied to the scan line. Setting data for setting a state where the display data of the first pixel is not updated is supplied to the first wiring, and the setting data for setting the state where the display data of the second pixel is updated is supplied to the second wiring. In a third period, the first pixel displays first display data, and the second pixel displays second display data.
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