-
公开(公告)号：US20220292871A1
公开(公告)日：2022-09-15
申请号：US17639632
申请日：2020-09-02
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Susumu KAWASHIMA , Kazunori WATANABE , Koji KUSUNOKI , Satoshi YOSHIMOTO
Abstract: To provide an imaging device having a function of biometric authentication and a function of a touch sensor or a near touch sensor. The imaging device includes pixels, current mirror circuits, and CDS circuits. The pixels, the current mirror circuits, and the CDS circuits are electrically connected to read lines. The current mirror circuit includes a first and a second transistor. One of a source and a drain of the first transistor is electrically connected to the read line, and a power supply potential is supplied to the other of a source and a drain of the second transistor. The imaging device outputs imaging data written to the pixel, as a first signal, to the read line in a first period, and then, resets the imaging data and outputs a second signal from the pixel to the read line in a second period. In the first period, a first potential is supplied to terminals, and in the second period, a second potential is supplied to terminals. A difference between the second potential and the power supply potential is greater than a difference between the first potential and the power supply potential.
-
公开(公告)号：US20220254860A1
公开(公告)日：2022-08-11
申请号：US17730583
申请日：2022-04-27
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kazunori WATANABE , Susumu KAWASHIMA , Koji KUSUNOKI
IPC: H01L27/32 , G09G3/3233 , G09G3/3275 , G09G3/20
Abstract: A display device that can easily achieve higher definition is provided The display device includes a pixel, a first wiring, and a second wiring. The pixel includes first to fourth transistors, a first capacitor, and a light-emitting element. One of a source and a drain of the first transistor is connected to the first wiring, and the other of the source and the drain of the first transistor is connected to a gate of the second transistor and to the first capacitor. The light-emitting element is connected to one of a source and a drain of the second transistor. The first wiring is supplied with a first data potential. The second wiring is supplied with a second data potential and a reset potential in different periods. The third transistor supplies the second data potential to the first capacitor. The fourth transistor supplies the reset potential to the light-emitting element.
-
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.
-
公开(公告)号：US20220246596A1
公开(公告)日：2022-08-04
申请号：US17619427
申请日：2020-06-12
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei YAMAZAKI , Hideaki SHISHIDO , Koji KUSUNOKI , Takahiro FUKUTOME
Abstract: A display device having a narrow bezel region is provided. The display device includes a first layer and a second layer. The first layer includes a source driver and one part of a sensor, and the second layer includes a gate driver, a plurality of pixels, and the other part of the sensor. The plurality of pixels include a pixel in which a light-emitting element emits light and a pixel having a function of the gate driver. An opening portion where the one part of the sensor is formed and a first terminal connected to the source driver are provided on the top surface of the first layer, and a second terminal is provided on the opposite side of the surface where the pixels included in the second layer are arranged. The first terminal is bonded to the second terminal, so that they are electrically connected to each other and the sensor is formed. Since an output signal of the source driver is directly supplied through the first terminal to a wiring to which the plurality of pixels are connected, the source driver and the gate driver do not need to be provided in a peripheral region of a display region where the plurality of pixels are provided.
-
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.
-
Patent Agency Ranking
26.发明申请公开(公告)号：US20210327865A1
公开(公告)日：2021-10-21
申请号：US17270081
申请日：2019-08-22
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Shunpei YAMAZAKI , Koji KUSUNOKI , Shingo EGUCHI , Takayuki IKEDA
Abstract: A display device with high resolution is provided. A display device with high display quality is provided. The display device includes a substrate, an insulating layer, a plurality of transistors, and a plurality of light-emitting diodes. The plurality of light-emitting diodes are provided in a matrix over the substrate. Each of the plurality of transistors is electrically connected to at least one of the plurality of light-emitting diodes. The plurality of light-emitting diodes are positioned closer to the substrate than the plurality of transistors are. The plurality of light-emitting diodes emit light toward the substrate. Each of the plurality of transistors includes a metal oxide layer and a gate electrode. The metal oxide layer includes a channel formation region. The top surface of the gate electrode is substantially level with the top surface of the insulating layer.
-
公开(公告)号：US20210294141A1
公开(公告)日：2021-09-23
申请号：US17262827
申请日：2019-07-30
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Shunpei YAMAZAKI , Koji KUSUNOKI , Tetsuji ISHITANI
IPC: G02F1/1333 , G02F1/1343 , G02F1/1337 , G02F1/137 , G06K9/00 , G06F3/042 , G09G3/36
Abstract: A novel input/output device that is highly convenient or reliable is provided. The input/output device includes a display portion and an input portion, and the display portion includes a liquid crystal element. The liquid crystal element includes a first electrode, a second electrode, a layer containing a liquid crystal material, a first alignment film, and a second alignment film, and the second electrode is provided such that an electric field is applied to the layer containing a liquid crystal material between the first electrode and the second electrode. The layer containing a liquid crystal material scatters incident light with first scattering intensity when the electric field is in a first state, the layer containing a liquid crystal material scatters the incident light with second scattering intensity when the electric field is in a second state, which is higher than that in the first state, and the second scattering intensity is 10 or more times as high as the first scattering intensity. The layer containing a liquid crystal material contains a liquid crystal material and a polymer material, and the layer containing a liquid crystal material is stabilized by the polymer material. The input portion includes a sensing region, the input portion senses an object approaching the sensing region, the sensing region includes a region overlapping with a pixel, and the sensing region includes a sensor.
-
公开(公告)号：US20210158489A1
公开(公告)日：2021-05-27
申请号：US16636555
申请日：2018-08-01
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kazunori WATANABE , Koji KUSUNOKI
Abstract: A display device having a high display quality is provided. The display device is formed such that for each target block that is to be displayed, different super-resolution processing are applied. Specifically, an image analysis unit analyzes image data that is input, and a target block within an image to be displayed is specified. In the image analysis unit, data of the target block is analyzed using a learned neural network, and an image dividing unit is controlled to divide the image data according to the analysis results. In the image analysis unit, in order to perform different super processing that applies to each image data that has been divided according to the analysis results, an image calculation processing unit including a plurality of super-resolution processing circuits is controlled.
-
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.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
234
records
(took 0.028 seconds)
