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.

公开(公告)号：US20230335605A1

公开(公告)日：2023-10-19

申请号：US18129122

申请日：2023-03-31

Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

IPC: H01L29/417 ,  H01L29/786 ,  H01L27/088

CPC classification number: H01L29/41733 ,  H01L29/7869 ,  H01L27/088 ,  H01L29/78696

Abstract: A novel semiconductor device is provided. The semiconductor device is a single-polarity semiconductor device including a vertical-channel transistor. In the vertical-channel transistor, the higher parasitic capacitance value of the gate-source parasitic capacitance and the gate-drain parasitic capacitance is used as a bootstrap capacitor, which decreases the occupied area of the semiconductor device. The use of an oxide semiconductor for a semiconductor layer of the vertical-channel transistor increases the breakdown voltage between the source and the drain, which can shorten the channel length. In addition, stable operation can be performed even in a high-temperature environment.

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

IPC: H10K59/80 ,  H10K39/34 ,  H10K59/35 ,  G06V40/13

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.

公开(公告)号：US20230196843A1

公开(公告)日：2023-06-22

申请号：US17925878

申请日：2021-05-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke KUBOTA ,  Koji KUSUNOKI ,  Shunpei YAMAZAKI

IPC: G06V40/70 ,  G06F3/042 ,  G06V40/13 ,  G06F21/32

CPC classification number: G06V40/70 ,  G06F3/042 ,  G06F21/32 ,  G06V40/1306 ,  G06V40/1318

Abstract: An electronic device having an authentication method with high security is provided. The electronic device includes a pixel portion, a sensor portion, and an authentication portion. The pixel portion includes a display element and a light-receiving element. The pixel portion includes a first region and has a function of making the display element of the first region emit light. The pixel portion has a function of obtaining first authentication information by capturing an image of an object that is in contact with the first region with the use of the light-receiving element. The sensor portion includes a second region and has a function of obtaining second authentication information by capturing an image of an object that is in contact with the second region. The authentication portion has a function of performing first authentication processing using the first authentication information. The authentication portion has a function of performing second authentication processing using the second authentication information.

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.

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.

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

IPC: G09G3/36 ,  G06F3/041

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.

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.

公开(公告)号：US20220214717A1

公开(公告)日：2022-07-07

申请号：US17609115

申请日：2020-04-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Koji KUSUNOKI ,  Ryo HATSUMI ,  Daisuke KUBOTA

IPC: G06F1/16 ,  H01L51/00 ,  G09G3/3233

Abstract: A data processing device is provided. The data processing device includes a functional panel and a first surface to a fifth surface. The functional panel includes a first region to a fifth region. The second region performs display in one direction. The third region is positioned between the first region and the second region and can be bent. The fifth region is positioned between the first region and the fourth region and can be bent. The fourth region has a function of performing display in one direction in a state where the third region and the fifth region are bent. The first surface includes the first region and a light-emitting element. The light-emitting element emits light. The second surface includes the second region and a photoelectric conversion element. The photoelectric conversion element converts the light into an electric signal. The third surface is positioned between the first surface and the second surface, can be bent, and includes the third region. The fourth surface includes the fourth region. The fifth surface is positioned between the first surface and the fourth surface, can be bent, and includes the fifth region. The photoelectric conversion element faces the light-emitting element following the bending of the third surface.

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.