公开(公告)号：US20250008804A1

公开(公告)日：2025-01-02

申请号：US18883120

申请日：2024-09-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke KUBOTA ,  Taisuke KAMADA ,  Ryo HATSUMI ,  Koji KUSUNOKI ,  Kazunori WATANABE ,  Susumu KAWASHIMA

IPC: H10K59/35 ,  H10K50/86 ,  H10K59/65 ,  H10K102/00

Abstract: The resolution of a display apparatus having a light detection function is increased. The display apparatus includes a light-emitting device and a light-emitting and light-receiving device. The light-emitting device includes a first pixel electrode, a first light-emitting layer, and a common electrode; the light-emitting and light-receiving device includes a second pixel electrode, a second light-emitting layer, an active layer, and the common electrode; the active layer includes an organic compound; the first light-emitting layer is positioned between the first pixel electrode and the common electrode; the second light-emitting layer and the active layer are each positioned between the second pixel electrode and the common electrode; the light-emitting device has a function of emitting light of a first color; and the light-emitting and light-receiving device has a function of emitting light of a second color and a function of receiving light of the first color. The light-emitting and light-receiving device functions as both a light-emitting device and a light-receiving device, whereby a pixel can have a light-receiving function without an increase in the number of subpixels included in the pixel. Furthermore, the pixel can be provided with a light-receiving function without a reduction in the resolution of the display apparatus or a reduction in the aperture ratio of each subpixel.

公开(公告)号：US20240420626A1

公开(公告)日：2024-12-19

申请号：US18701699

申请日：2022-10-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu KAWASHIMA ,  Koji KUSUNOKI ,  Tomoaki ATSUMI

IPC: G09G3/32

Abstract: A display device whose change in chromaticity is small and grayscale controllability is high is provided. Light emission of the light-emitting device can be performed by PAM and PWM control (a pulse width control involving changes in amplitude), so that the amount of change in chromaticity can be reduced and the controllability on the low grayscale side can be increased. The display device includes a pulse-signal-generation portion and a light-emitting control portion in a pixel and is capable of charging a signal potential in the light-emitting control portion and then discharging the signal potential in accordance with a pulse signal generated in the pulse-signal-generation portion. Thus, the light-emitting device can emit light in a desired period with desired emission intensity.

公开(公告)号：US20240379690A1

公开(公告)日：2024-11-14

申请号：US18767164

申请日：2024-07-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi YOSHIMOTO ,  Koji KUSUNOKI ,  Kazunori WATANABE ,  Susumu KAWASHIMA ,  Marina HIYAMA ,  Motoharu SAITO

IPC: H01L27/12 ,  G09G3/20

Abstract: 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.

公开(公告)号：US20240105138A1

公开(公告)日：2024-03-28

申请号：US18529032

申请日：2023-12-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu KAWASHIMA ,  Koji KUSUNOKI ,  Kazunori WATANABE ,  Naoto KUSUMOTO

IPC: G09G3/36 ,  G02F1/1368

CPC classification number: G09G3/3648 ,  G02F1/1368 ,  G09G3/3696 ,  G09G2300/0426 ,  G09G2330/021

Abstract: A display apparatus with low-power consumption is provided. The display apparatus includes an inverter circuit and a pixel having a function of adding data, and the inverter circuit has a function of inverting data supplied from a source driver. The inverter circuit has a function of inverting data supplied from a source driver. The pixel has a function of adding data supplied from the source driver and the inverter circuit. Accordingly, the pixel can generate a voltage several times higher than the output voltage of the source driver and can supply the voltage to a display device. With such a structure, the output voltage of the source driver can be lowered, so that a display apparatus with low power consumption can be achieved.

公开(公告)号：US20240099038A1

公开(公告)日：2024-03-21

申请号：US17768150

申请日：2020-10-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke Kubota ,  Taisuke KAMADA ,  Ryo HATSUMI ,  Koji KUSUNOKI ,  Kazunori WATANABE ,  Susumu KAWASHIMA

IPC: H10K39/34 ,  H10K50/858

CPC classification number: H10K39/34 ,  H10K50/858

Abstract: A display apparatus having a photoelectric conversion function with high sensitivity is provided. The light extraction efficiency of the display apparatus is increased. The display apparatus includes a light-emitting device, a light-emitting and light-receiving device, a first lens, and a second lens. The light-emitting device has a function of emitting light of a first color. The light-emitting and light-receiving device has a function of emitting light of a second color and a function of receiving light of the first color and converting it into an electric signal. The light emitted by the light-emitting device is emitted to the outside of the display apparatus through the first lens. Light enters the light-emitting and light-receiving device from the outside of the display apparatus through the second lens.

公开(公告)号：US20240036427A1

公开(公告)日：2024-02-01

申请号：US18224150

申请日：2023-07-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Koji KUSUNOKI ,  Susumu KAWASHIMA

IPC: G02F1/1368

CPC classification number: G02F1/13685 ,  H01L27/1225

Abstract: A high-aperture-ratio liquid crystal display device or a high-definition liquid crystal display device is provided. The display device includes a transistor including a semiconductor layer including an oxide semiconductor film, a gate insulating layer, a gate electrode, a first conductive layer, and a second conductive layer; a liquid crystal element including the second conductive layer including an oxide conductive film, a third conductive layer, and a liquid crystal; and a first insulating layer. The first insulating layer includes a first side surface over the first conductive layer. The semiconductor layer is in contact with a top surface of the first conductive layer and the first side surface. The gate insulating layer includes a portion facing the first side surface with the semiconductor layer therebetween. The gate electrode includes a portion facing the first side surface with the semiconductor layer and the gate insulating layer therebetween. The second conductive layer is over the first insulating layer and in contact with the semiconductor layer. The third conductive layer is over the first insulating layer and overlaps with the second conductive layer.

公开(公告)号：US20240004248A1

公开(公告)日：2024-01-04

申请号：US18368632

申请日：2023-09-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Susumu KAWASHIMA ,  Naoto KUSUMOTO

IPC: G02F1/1362 ,  G02F1/1368 ,  H01L27/12

CPC classification number: G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  H01L27/1225 ,  H01L27/1255 ,  G09G3/3225

Abstract: A display device capable of improving image quality is provided. A display device includes a plurality of pixel blocks in a display region. The pixel blocks each include a first circuit and a plurality of second circuits. The first circuit has a function of adding a plurality of pieces of data supplied from a source driver. The second circuit includes a display element and has a function of performing display in accordance with the added data. One pixel has a configuration including one second circuit and an component of the first circuit that is shared. When the first circuit is shared by a plurality of pixels, the aperture ratio can be increased.

公开(公告)号：US20230369344A1

公开(公告)日：2023-11-16

申请号：US18140797

申请日：2023-04-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Koji KUSUNOKI ,  Susumu KAWASHIMA ,  Hideaki SHISHIDO ,  Tomoaki ATSUMI ,  Motoharu SAITO

IPC: H01L27/12 ,  G09G3/3233

CPC classification number: H01L27/1237 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2310/08

Abstract: A semiconductor device including a first transistor, a second transistor, and an insulating layer is provided. The first transistor includes a first semiconductor layer and a first conductive layer. The second transistor includes a second semiconductor layer and a second conductive layer. The insulating layer includes a first side surface over the first conductive layer and a second side surface over the second conductive layer. A gate insulating layer includes a portion facing the first side surface with the first semiconductor layer therebetween and a portion facing the second side surface with the second semiconductor layer therebetween. A gate electrode includes a portion facing the first side surface with the gate insulating layer and the first semiconductor layer therebetween and a portion facing the second side surface with the gate insulating layer and the second semiconductor layer therebetween. The first semiconductor layer is electrically connected to the second semiconductor layer.

公开(公告)号：US20230326934A1

公开(公告)日：2023-10-12

申请号：US18022329

申请日：2021-08-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi YOSHIMOTO ,  Koji KUSUNOKI ,  Kazunori WATANABE ,  Susumu KAWASHIMA ,  Marina HIYAMA ,  Motoharu SAITO

IPC: H01L27/12 ,  G09G3/20

CPC classification number: H01L27/1248 ,  G09G3/20 ,  G09G2310/0291 ,  G09G2330/021 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2300/0426

Abstract: 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.

公开(公告)号：US20230238369A1

公开(公告)日：2023-07-27

申请号：US17927387

申请日：2021-06-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Koji KUSUNOKI ,  Daisuke KUBOTA ,  Kazunori WATANABE ,  Susumu KAWASHIMA ,  Satoshi YOSHIMOTO

IPC: H01L25/16 ,  H01L25/075 ,  H01L33/62 ,  H01L27/12 ,  G06V40/13

CPC classification number: H01L25/167 ,  H01L25/0753 ,  H01L33/62 ,  H01L27/1225 ,  G06V40/1318

Abstract: A display apparatus having a noncontact input function is provided. The display apparatus has a first function of detecting, with a light-receiving device, light irradiated from a light source outside a display portion and blocked by a pointing object to recognize the position pointed by the pointing object, and a second function of detecting, with the light-receiving device, light irradiated from a light source inside or outside the display portion and reflected by the pointing object to recognize the position pointed by the pointing object. The display apparatus can operate by switching the first function and the second function in accordance with the intensity of the light irradiated from the light source outside the display portion.