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公开(公告)号：US20230395036A1
公开(公告)日：2023-12-07
申请号：US18235498
申请日：2023-08-18
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kazunori WATANABE , Koji KUSUNOKI
IPC: G09G3/36 , G02F1/1362 , G02F1/1368 , G11C19/28
CPC classification number: G09G3/3677 , G02F1/136286 , G02F1/1368 , G11C19/28 , G09G3/3611 , G09G2310/0267 , G09G2310/0286
Abstract: A display apparatus with low power consumption is provided. The display apparatus includes a circuit for boosting a signal voltage output from a gate driver. The signal voltage from the gate driver can be boosted and then supplied to a pixel, which is suitable for driving a display device with a high threshold voltage. Furthermore, by utilizing a boosting function, output of the gate driver can be reduced, and power consumption can also be reduced. By combination with a pixel having a boosting function of image data, a display apparatus with lower power consumption can be achieved.
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公开(公告)号：US20230395022A1
公开(公告)日：2023-12-07
申请号：US18033710
申请日：2021-10-18
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Satoshi YOSHIMOTO , Koji KUSUNOKI , Kazunori WATANABE , Susumu KAWASHIMA
IPC: G09G3/3233 , H10K39/32
CPC classification number: G09G3/3233 , H10K39/32 , G09G2300/0857 , G09G2330/021 , G09G2360/14
Abstract: One embodiment of the present invention relates to a common semiconductor apparatus for driving two different circuits. The semiconductor apparatus is capable of switching a plurality of signal potentials and sequentially outputting the plurality of signal potentials to the outside. The semiconductor apparatus can make one of two different circuits arranged in a matrix operate in all the rows and can make the other circuit operate in all the rows or only in a specific row. For example, in the case where the semiconductor apparatus is applied to a row driver that drives pixels of a display device in which sensor elements are incorporated, the operation of display elements in pixels in all the rows and the operation of sensor elements in pixels in all the rows or in the specific row can be switched.
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公开(公告)号：US20230309364A1
公开(公告)日：2023-09-28
申请号：US18023604
申请日：2021-08-30
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Shunpei YAMAZAKI , Shingo EGUCHI , Daisuke KUBOTA , Koji KUSUNOKI , Kazunori WATANABE
CPC classification number: H10K59/8792 , H10K39/34 , H10K59/353 , G06V40/1318 , G06V40/1365
Abstract: A display device having both a touch detection function and a function of capturing an image of a shape of a fingerprint or a vein is provided. The display device includes a first light-emitting element, a second light-emitting element, a light-receiving element, and a light-blocking layer. The first light-emitting element and the light-receiving element are arranged on the same plane. The light-blocking layer is provided above the first light-emitting element and the light-receiving element. The second light-emitting element is provided above the light-blocking layer. The first light-emitting element has a function of emitting visible light upward. The second light-emitting element has a function of emitting invisible light upward. The light-receiving element is a photoelectric conversion element having sensitivity to visible light and invisible light. In a plan view, the light-blocking layer includes a portion positioned between the first light-emitting element and the light-receiving element. In the plan view, the second light-emitting element overlaps with the light-blocking layer and is positioned inside the outline of the light-blocking layer.
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公开(公告)号：US20230165055A1
公开(公告)日：2023-05-25
申请号：US17921444
申请日：2021-04-30
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Susumu KAWASHIMA , Koji KUSUNOKI , Kazunori WATANABE , Kensuke YOSHIZUMI
IPC: H10K59/121 , H10K59/131 , H10K59/35
CPC classification number: H10K59/1213 , H10K59/1216 , H10K59/131 , H10K59/352 , H10K59/353
Abstract: A display device that has an image capturing function is provided. An image capturing device or a display device with high definition is provided. The display device includes first to fourth switches, a first transistor, a capacitor, and a light-emitting/receiving element. The first switch is connected to a gate of the first transistor. The second switch is connected to one of a source and a drain of the first transistor. An anode of the light-emitting/receiving element is connected to the other of the source and the drain of the first transistor through the third switch. The fourth switch is connected to the other of the source and the drain of the first transistor. One electrode of the capacitor is connected to the gate of the first transistor, and the other electrode of the capacitor is connected to the other of the source and the drain of the first transistor. The light-emitting/receiving element emits light of a first color, receives light of a second color, and converts the light into an electric signal.
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25.发明公开公开(公告)号：US20230154369A1
公开(公告)日：2023-05-18
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
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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Patent Agency Ranking
公开(公告)号：US20230014200A1
公开(公告)日：2023-01-19
申请号：US17944275
申请日：2022-09-14
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei YAMAZAKI , Kenichi OKAZAKI , Daisuke KUROSAKI , Yasutaka NAKAZAWA , Kazunori WATANABE , Koji KUSUNOKI
IPC: H01L27/12 , G06F3/041 , H01L29/786 , G02F1/1368 , G06F3/044
Abstract: A display device includes a liquid crystal element, a transistor, a scan line, and a signal line. The liquid crystal element includes a pixel electrode, a liquid crystal layer, and a common electrode. The scan line and the signal line are each electrically connected to the transistor. The scan line and the signal line each include a metal layer. The transistor is electrically connected to the pixel electrode. A semiconductor layer of the transistor includes a stack of a first metal oxide layer and a second metal oxide layer. The first metal oxide layer includes a region with lower crystallinity than the second metal oxide layer. The transistor includes a first region connected to the pixel electrode. The pixel electrode, the common electrode, and the first region are each configured to transmit visible light. Visible light passes through the first region and the liquid crystal element and exits from the display device.
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公开(公告)号：US20220392419A1
公开(公告)日：2022-12-08
申请号：US17887638
申请日：2022-08-15
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kouhei TOYOTAKA , Kei TAKAHASHI , Koji KUSUNOKI , Kazunori WATANABE , Susumu KAWASHIMA
Abstract: A novel display panel that is highly convenient or reliable is provided. A pixel circuit includes a first switch, a node, a capacitor, and a second switch. The first switch includes a first terminal to which a first signal is supplied and a second terminal electrically connected to the node. The capacitor includes a first terminal electrically connected to the node and a second terminal electrically connected to the second switch. The second switch includes a first terminal to which a second signal is supplied and a second terminal electrically connected to the second terminal of the capacitor. In addition, the second switch has a function of changing from a non-conducting state to a conducting state when the first switch is in a non-conducting state and a function of changing from a conducting state to a non-conducting state when the first switch is in a non-conducting state. The display element performs display on the basis of a potential of the node.
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公开(公告)号：US20220230600A1
公开(公告)日：2022-07-21
申请号：US17713358
申请日：2022-04-05
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Susumu KAWASHIMA , Koji KUSUNOKI , Kazunori WATANABE , Kouhei TOYOTAKA , Naoto KUSUMOTO , Shunpei YAMAZAKI
IPC: G09G3/36 , G02F1/1362 , G02F1/1368 , H01L27/105 , H01L27/12 , H01L29/24 , H01L29/786
Abstract: A display device capable of performing image processing is provided. A memory node is provided in each pixel included in the display device. An intended correction data is held in the memory node. The correction data is calculated by an external device and written into each pixel. The correction data is added to image data by capacitive coupling, and the resulting data is supplied to a display element. Thus, the display element can display a corrected image. The correction enables image upconversion, for example.
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公开(公告)号：US20220108666A1
公开(公告)日：2022-04-07
申请号：US17425766
申请日：2020-01-22
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kazunori WATANABE , Koji KUSUNOKI
IPC: G09G3/36 , G02F1/1362 , G11C19/28 , G02F1/1368
Abstract: A display apparatus with low power consumption is provided. The display apparatus includes a circuit for boosting a signal voltage output from a gate driver. The signal voltage from the gate driver can be boosted and then supplied to a pixel, which is suitable for driving a display device with a high threshold voltage. Furthermore, by utilizing a boosting function, output of the gate driver can be reduced, and power consumption can also be reduced. By combination with a pixel having a boosting function of image data, a display apparatus with lower power consumption can be achieved.
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公开(公告)号：US20220068181A1
公开(公告)日：2022-03-03
申请号：US17423237
申请日：2020-01-20
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kazunori WATANABE , Susumu KAWASHIMA , Masataka SHIOKAWA , Daisuke KUBOTA , Jiro IMADA , Katsuki YANAGAWA , Koji KUSUNOKI
IPC: G09G3/20
Abstract: A functional panel is provided. The functional panel includes a first driver circuit, a second driver circuit, and a region. The first driver circuit supplies a first selection signal, the second driver circuit supplies a second selection signal and a third selection signal, and the region includes a pixel. The pixel includes a first pixel circuit, a light-emitting element, a second pixel circuit, and a photoelectric conversion element. The first pixel circuit is supplied with the first selection signal, the first pixel circuit obtains an image signal on the basis of the first selection signal, the light-emitting element is electrically connected to the first pixel circuit, and the light-emitting element emits light on the basis of the image signal. The second pixel circuit is supplied with the second selection signal and the third selection signal in a period during which the first selection signal is not supplied, the second pixel circuit obtains an imaging signal on the basis of the second selection signal and supplies the imaging signal on the basis of the third selection signal, and the photoelectric conversion element is electrically connected to the second pixel circuit and generates the imaging signal.
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