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公开(公告)号：US20220246694A1
公开(公告)日：2022-08-04
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
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.
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公开(公告)号：US20210343243A1
公开(公告)日：2021-11-04
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
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.
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公开(公告)号：US20210150996A1
公开(公告)日：2021-05-20
申请号：US16628107
申请日：2018-06-22
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kei TAKAHASHI , Susumu KAWASHIMA
IPC: G09G3/36 , G02F1/133 , G02F1/1345 , G02F1/1362 , G02F1/1368
Abstract: A novel and highly convenient or reliable display panel is provided which includes a first driver circuit, a second driver circuit, a first scan line, a second scan line, and a first signal line. The first driver circuit supplies a selection signal. The second driver circuit supplies a predetermined voltage, first data using a voltage greater than or equal to the predetermined voltage, and second data using a voltage less than or equal to the predetermined voltage. The first scan line is selected in a first period. The second scan line adjacent to the first scan line is selected in a third period. The first signal line receives the first data in the first period, the predetermined voltage in a second period, and the second data in the third period. The second period is provided between the first period and the third period.
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公开(公告)号：US20210134920A1
公开(公告)日：2021-05-06
申请号：US16633402
申请日：2018-07-23
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei YAMAZAKI , Koji KUSUNOKI , Kazunori WATANABE , Susumu KAWASHIMA , Kei TAKAHASHI
Abstract: A novel display panel that is highly convenient or reliable is provided. A novel display device is provided. The display panel includes a display region, a first terminal region, and a second terminal region, and the first terminal region is provided not to block the display region and includes a region overlapping with the display region. The first terminal region includes a first group of terminals, and the first group of terminals includes a first terminal. The second terminal region includes a second group of terminals, and the second group of terminals includes a second terminal. The display region includes one group of pixels, another group of pixels, a scan line, and a signal line. The one group of pixels includes a pixel and is arranged in a row direction. The another group of pixels includes the pixel and is arranged in a column direction intersecting the row direction. The scan line is electrically connected to the one group of pixels. The signal line is electrically connected to the another group of pixels, and the signal line is electrically connected to the first terminal and the second terminal.
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公开(公告)号：US20210096678A1
公开(公告)日：2021-04-01
申请号：US17026446
申请日：2020-09-21
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Daisuke KUBOTA , Ryo HATSUMI , Taisuke KAMADA , Koji KUSUNOKI , Kazunori WATANABE , Susumu KAWASHIMA , Kensuke YOSHIZUMI
Abstract: A display device featuring a touch detection and a fingerprint imaging functions is provided. A display device includes a light-emitting element and a light-receiving element. The light-emitting element includes a first pixel electrode, a light-emitting layer, and a common electrode, and the light-receiving element includes a second pixel electrode, an active layer, and the common electrode. The first pixel electrode and the second pixel electrode are provided on the same plane. The common electrode overlaps with the first pixel electrode with the light-emitting layer therebetween, and overlaps with the second pixel electrode with the active layer therebetween. A first conductive layer, a second conductive layer, and an insulating layer are provided above the common electrode. The insulating layer is provided above the first conductive layer, and the second conductive layer is provided above the insulating layer. The light-receiving element has a function of receiving light emitted from the light-emitting element.
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Patent Agency Ranking
公开(公告)号：US20210011347A1
公开(公告)日：2021-01-14
申请号：US16977937
申请日：2019-02-26
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Susumu KAWASHIMA , Naoto KUSUMOTO
IPC: G02F1/1362 , H01L27/32 , G02F1/1333
Abstract: A display device capable of improving the image quality is provided. The display device includes a pixel in which a first node, a second node, a third node, and a display element are provided, and the same image data is written to the first node and the second node first. Then, at the same time when the image data is read from the second node to the third node, the image data is added to the image data in the first node by capacitive coupling. This operation enables a data potential higher than or equal to the output voltage of a source driver to be supplied to the display element.
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公开(公告)号：US20200341340A1
公开(公告)日：2020-10-29
申请号：US16962304
申请日：2019-01-08
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kei Takahashi , Susumu KAWASHIMA , Koji KUSUNOKI , Kouhei TOYOTAKA , Kazunori WATANABE
IPC: G02F1/1362 , G02F1/1368 , G02F1/137
Abstract: A display apparatus in which a high voltage can be supplied to a display device is provided. The display apparatus includes a data generation circuit, a source driver circuit, and a pixel. The source driver circuit is electrically connected to the pixel through first and second wirings functioning as signal lines. The pixel includes a display device that is a liquid crystal device, a potential of one electrode of the display device can be a potential of the first wiring, and a potential of the other electrode of the display device can be a potential of the second wiring. The image data generation circuit has a function of generating digital image data including first and second data. In the case where image data corresponding to the digital image data is supplied to the pixel, one of the first and second wirings is made to have a potential corresponding to first data, and the other of the first and second wirings is made to have a potential corresponding to the first data. The potential of the first wiring and the potential of the second wiring are interchanged so that frame inversion driving or the like can be performed.
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公开(公告)号：US20200326570A1
公开(公告)日：2020-10-15
申请号：US16769333
申请日：2018-12-14
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Susumu KAWASHIMA , Naoto KUSUMOTO
IPC: G02F1/1368 , G02F1/1362 , G02F1/1333 , H01L27/15 , H01L27/32
Abstract: A display device capable of improving image quality is provided. The display device includes a plurality of capacitors, a plurality of transistors, and a display element in a pixel. The plurality of capacitors are connected in series through a wiring, and one of the plurality of transistors is electrically connected to one electrode of the plurality of capacitors connected in series, the other electrode thereof, and the wiring. The display element can operate in accordance with the sum of a plurality of pieces of input data, so that image correction such as image upconversion, HDR display, or improvement in the luminance can be performed.
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公开(公告)号：US20180033399A1
公开(公告)日：2018-02-01
申请号：US15657279
申请日：2017-07-24
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Susumu KAWASHIMA , Ryo HATSUMI , Yusuke NISHIDO , Daisuke KUBOTA
IPC: G09G5/10 , G09G3/3225 , G09G3/36 , H01L27/32 , G02F1/1335
CPC classification number: G09G5/10 , G02F1/133553 , G02F1/133603 , G02F1/1368 , G02F2001/133565 , G02F2201/44 , G02F2201/58 , G09G3/2003 , G09G3/3225 , G09G3/3413 , G09G3/3426 , G09G3/3648 , G09G2300/023 , G09G2300/046 , G09G2320/028 , G09G2320/0633 , G09G2354/00 , G09G2360/144 , H01L27/3213 , H01L27/3216 , H01L27/3227 , H01L27/3232 , H01L27/3244
Abstract: An electronic device which can display an image with the viewing angle dependence reduced is provided. A driving method of an electronic device including a display portion and a position detection sensor is provided. The display portion includes a first display element and a second display element. The first display element is configured to reflect visible light, and the second display element is configured to emit visible light. The display portion is configured to display an image using one or both of first light reflected by the first display element and second light emitted by the second display element. The position detection sensor is configured to detect a position of a user. When the display portion displays the image using both the first light and the second light, an amount of the second light is adjusted in accordance with an angle from which the display portion is viewed by the user.
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公开(公告)号：US20250077012A1
公开(公告)日：2025-03-06
申请号：US18950355
申请日：2024-11-18
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Daisuke KUBOTA , Ryo HATSUMI , Taisuke KAMADA , Koji KUSUNOKI , Kazunori WATANABE , Susumu KAWASHIMA , Kensuke YOSHIZUMI
IPC: G06F3/041 , G06F3/042 , G06V10/147 , G06V40/13
Abstract: A display device featuring a touch detection and a fingerprint imaging functions is provided. A display device includes a light-emitting element and a light-receiving element. The light-emitting element includes a first pixel electrode, a light-emitting layer, and a common electrode, and the light-receiving element includes a second pixel electrode, an active layer, and the common electrode. The first pixel electrode and the second pixel electrode are provided on the same plane. The common electrode overlaps with the first pixel electrode with the light-emitting layer therebetween, and overlaps with the second pixel electrode with the active layer therebetween. A first conductive layer, a second conductive layer, and an insulating layer are provided above the common electrode. The insulating layer is provided above the first conductive layer, and the second conductive layer is provided above the insulating layer. The light-receiving element has a function of receiving light emitted from the light-emitting element.
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