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公开(公告)号：US11663990B2
公开(公告)日：2023-05-30
申请号：US17285603
申请日：2019-10-28
发明人： Kouhei Toyotaka , Motoharu Saito
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/3696 , G09G2300/0426 , G09G2310/0286 , G09G2310/0291 , G09G2330/021
摘要： A display apparatus which includes a driver with low power consumption and in which an output voltage of the driver is boosted by a pixel is provided. The source driver in which a logic unit and an amplifier unit operate appropriately by the same low voltage is included, and the pixel has a function of retaining first data, a function of adding second data to the first data to generate third data, and a function of supplying the third data to a display device. Thus, even when a voltage output from the source driver is low, the voltage can be boosted by the pixel; accordingly, the display device can operate appropriately.
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公开(公告)号：US12039952B2
公开(公告)日：2024-07-16
申请号：US18134054
申请日：2023-04-13
发明人： Kouhei Toyotaka , Motoharu Saito
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/3696 , G09G2300/0426 , G09G2310/0286 , G09G2310/0291 , G09G2330/021
摘要： A display apparatus which includes a driver with low power consumption and in which an output voltage of the driver is boosted by a pixel is provided. The source driver in which a logic unit and an amplifier unit operate appropriately by the same low voltage is included, and the pixel has a function of retaining first data, a function of adding second data to the first data to generate third data, and a function of supplying the third data to a display device. Thus, even when a voltage output from the source driver is low, the voltage can be boosted by the pixel; accordingly, the display device can operate appropriately.
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公开(公告)号：US12040333B2
公开(公告)日：2024-07-16
申请号：US18022329
申请日：2021-08-17
发明人： Satoshi Yoshimoto , Koji Kusunoki , Kazunori Watanabe , Susumu Kawashima , Marina Hiyama , Motoharu Saito
CPC分类号： H01L27/1248 , G09G3/20 , G09G2300/0426 , G09G2310/0286 , G09G2310/0291 , G09G2310/08 , G09G2330/021
摘要： A highly functional semiconductor device is provided. The semiconductor device includes a first transistor and a second transistor. The first transistor includes a first semiconductor layer, a first gate electrode, a first electrode, and a second electrode. The second transistor includes a second semiconductor layer, a second gate electrode, a third electrode, and a fourth electrode. The first gate electrode and the second gate electrode are connected to each other, and the second electrode and the third electrode are connected to each other. A first insulating layer, a second insulating layer, and a second semiconductor layer are stacked over the first semiconductor layer. The first insulating layer is less likely to diffuse hydrogen than the second insulating layer. The second insulating layer contains oxide, the first semiconductor layer contains polycrystalline silicon, and the second semiconductor layer contains a metal oxide. The first transistor is a p-channel transistor and the second transistor is an n-channel transistor.
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公开(公告)号：US12001634B2
公开(公告)日：2024-06-04
申请号：US17919659
申请日：2021-04-19
发明人： Satoshi Yoshimoto , Kazunori Watanabe , Susumu Kawashima , Ryo Yamauchi , Motoharu Saito , Koji Kusunoki , Shunpei Yamazaki
IPC分类号： G06F3/042 , G06T7/20 , G09G3/3233
CPC分类号： G06F3/042 , G06T7/20 , G09G3/3233 , G06T2207/20081 , G09G2300/08 , G09G2310/08 , G09G2330/023
摘要： A display apparatus capable of performing authentication in a short time is provided. The display apparatus includes a first display portion where first pixels are arranged in a matrix, a second display portion where second pixels are arranged in a matrix, first and second row driver circuits, and a control circuit. Each of the first and the second pixels includes a light-receiving element. The first and the second pixels each have a function of acquiring imaging data by using the light-receiving element. The first and the second row driver circuits each have a function of selecting the first and the second pixels which read out the imaging data. The control circuit has a function of sequentially driving the first and the second row driver circuits in a first mode, and has a function of driving one of the first and the second row driver circuits on the basis of the imaging data in the second mode. Each of the scan rates of the first and the second row driver circuits in the first mode is higher than the scan rate of the first or the second row driver circuit in the second mode.
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