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    Display apparatus, display module, and electronic device
    21.
    发明授权
    Display apparatus, display module, and electronic device 有权

    公开(公告)号：US12219857B2

    公开(公告)日：2025-02-04

    申请号：US17623798

    申请日：2020-06-23

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Kazunori Watanabe ,  Koji Kusunoki ,  Susumu Kawashima ,  Taisuke Kamada ,  Ryo Hatsumi ,  Daisuke Kubota

    IPC: H10K59/65 ,  G06F3/042 ,  H10K30/40 ,  H10K30/82 ,  H10K39/30 ,  H10K50/828 ,  H10K50/86 ,  H10K59/122 ,  H10K59/38 ,  H10K59/40 ,  G06F3/041 ,  H10K102/00

    Abstract: A display apparatus having a photosensing function is provided. The display apparatus includes a first pixel circuit and a second pixel circuit. The first pixel circuit includes a light-receiving device, a first transistor, and a second transistor. The second pixel circuit includes a light-emitting device. The light-receiving device includes a first pixel electrode, an active layer, and a common electrode. The light-emitting device includes a second pixel electrode, a light-emitting layer, and the common electrode. The active layer is positioned over the first pixel electrode and includes a first organic compound. The light-emitting layer is positioned over the second pixel electrode and includes a second organic compound different from the first organic compound. The common electrode includes a portion overlapping with the first pixel electrode with the active layer therebetween and a portion overlapping with the second pixel electrode with the light-emitting layer therebetween. The first transistor includes low-temperature polysilicon as a semiconductor layer and the second transistor includes a metal oxide as a semiconductor layer.

    Flip-flop circuit, driver circuit, display panel, display device, input/output device, and data processing device
    28.
    发明授权
    Flip-flop circuit, driver circuit, display panel, display device, input/output device, and data processing device 有权

    公开(公告)号：US11562675B2

    公开(公告)日：2023-01-24

    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 ,  G06F3/041

    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.

    Method for operating display device
    29.
    发明授权
    Method for operating display device 有权

    公开(公告)号：US11508307B2

    公开(公告)日：2022-11-22

    申请号：US17273818

    申请日：2019-08-30

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Kei Takahashi ,  Koji Kusunoki ,  Kouhei Toyotaka ,  Susumu Kawashima ,  Kazunori Watanabe

    IPC: G09G3/3258 ,  H01L25/16 ,  H01L27/32

    Abstract: A display device that can correct the threshold voltage of a driving transistor without a correction of image data is provided. A display device including a pixel provided with a driving transistor, a display element, and a memory circuit and a correction data generation circuit is related. One of a source and a drain of the driving transistor is electrically connected to one electrode of the display element, and a gate of the driving transistor is electrically connected to the memory circuit. In a first period, the correction data generation circuit generates correction data that is data for correcting the threshold voltage of the driving transistor. In a second period, first data is written to the memory circuit. In a third period, second data is supplied to the pixel, whereby third data in which the second data is added to the first data is generated. In a fourth period, an image corresponding to the third data is displayed by the display element.

    Semiconductor device, display device, and electronic device
    30.
    发明授权
    Semiconductor device, display device, and electronic device 有权

    公开(公告)号：US10957720B2

    公开(公告)日：2021-03-23

    申请号：US16760495

    申请日：2018-10-29

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Kei Takahashi ,  Susumu Kawashima ,  Koji Kusunoki ,  Kazunori Watanabe

    IPC: G09G3/36 ,  H01L27/12 ,  H03M1/68

    Abstract: To provide a display device having a small circuit area and low power consumption. The display device includes a semiconductor device and a D/A converter circuit, and the semiconductor device includes first to third transistors and first and second capacitors. A first terminal of the first transistor is electrically connected to a first terminal of the first capacitor. A first terminal of the second transistor is electrically connected to a gate of the third transistor, a second terminal of the first capacitor, and a first terminal of the second capacitor. A first terminal of the third transistor is electrically connected to a second terminal of the second capacitor. An output terminal of the D/A converter circuit is electrically connected to a second terminal of the first transistor and a second terminal of the second transistor. Supply of a potential to the first terminal of the first capacitor changes (finely adjusts) the potential of the gate of the third transistor to be more precise than a potential that can be output from the D/A converter circuit.

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