公开(公告)号：US11644869B2

公开(公告)日：2023-05-09

申请号：US16884154

申请日：2020-05-27

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji Kusunoki ,  Hiroyuki Miyake ,  Kazunori Watanabe

IPC: G06F1/16 ,  G06F3/044 ,  H01L27/32 ,  G06F3/0488 ,  H01L51/00 ,  G06F3/041 ,  G06F3/045 ,  G06F15/02

CPC classification number: G06F1/1652 ,  G06F3/045 ,  G06F3/0412 ,  G06F3/0445 ,  G06F3/0446 ,  G06F3/0488 ,  G06F3/04166 ,  G06F15/0216 ,  H01L27/323 ,  H01L51/0097 ,  G06F1/1618 ,  G06F1/1677 ,  G06F2200/1633 ,  G06F2203/04101 ,  G06F2203/04102 ,  G06F2203/04104 ,  G06F2203/04111 ,  G06F2203/04112 ,  G06F2203/04808 ,  Y02E10/549

Abstract: To increase the detection sensitivity of a touch panel, provide a thin touch panel, provide a foldable touch panel, or provide a lightweight touch panel. A display element and a capacitor forming a touch sensor are provided between a pair of substrates. Preferably, a pair of conductive layers forming the capacitor each have an opening. The opening and the display element are provided to overlap each other. A light-blocking layer is provided between a substrate on the display surface side and the pair of conductive layers forming the capacitor.

公开(公告)号：US11588137B2

公开(公告)日：2023-02-21

申请号：US16885725

申请日：2020-05-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Shingo Eguchi ,  Koji Kusunoki

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/50 ,  G06F3/041 ,  G09G3/3225

Abstract: A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a pixel including a microlens array and a light-emitting device. The light-emitting device emits first light. The microlens array collects the first light. The microlens array includes a plurality of microlenses. The microlenses have a cross section having a shape with which they can be arranged with a filling factor higher than that of a circle on a plane parallel to the light-emitting device. The microlenses have a curved surface on a plane orthogonal to the plane parallel to the light-emitting device. The convex side of the curved surface faces the light-emitting device.

公开(公告)号：US11574573B2

公开(公告)日：2023-02-07

申请号：US16636435

申请日：2018-08-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Susumu Kawashima ,  Kouhei Toyotaka

IPC: G09G3/20 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  G06N3/04 ,  G06T3/40 ,  H01L27/12 ,  G02F1/1335 ,  H01L27/32

Abstract: A high-resolution display system is provided.
A display system with high display quality is provided. The display system includes a processing unit and a display unit. A first image signal is supplied to the processing unit. The processing unit has a function of generating a second image signal by using the first image signal. The processing unit has a function of generating a correction signal. The display unit includes a pixel. The pixel includes a display element and a memory circuit. The second image signal and the correction signal are supplied to the pixel. The memory circuit has a function of retaining the correction signal.

公开(公告)号：US11543711B2

公开(公告)日：2023-01-03

申请号：US16771360

申请日：2018-12-10

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

IPC: G02F1/1345 ,  G02F1/133 ,  G02F1/1362 ,  G02F1/1368

Abstract: A liquid crystal display device including a pixel containing a first memory circuit, a second memory circuit, and a liquid crystal element is provided. The first memory circuit includes a first capacitor. One electrode of the first capacitor is electrically connected to one electrode of the liquid crystal element. The second memory circuit includes a second capacitor. One electrode of the second capacitor is electrically connected to the one electrode of the liquid crystal element. The first memory circuit has a function of storing a charge corresponding to a first signal. The second memory circuit has a function of storing a charge corresponding to a second signal. A voltage is applied to the liquid crystal element by supplying a third signal to the other electrode of the first capacitor and supplying a fourth signal to the other electrode of the second capacitor, whereby an image is displayed.

公开(公告)号：US11360363B2

公开(公告)日：2022-06-14

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 ,  G09G3/36 ,  G09G3/20 ,  G02F1/133

Abstract: 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. 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. 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 second data. The potential of the first wiring and the potential of the second wiring are interchanged.

公开(公告)号：US11222583B2

公开(公告)日：2022-01-11

申请号：US16768720

申请日：2018-12-11

Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

IPC: G09G3/32 ,  H01L27/12 ,  H01L25/075 ,  H01L27/105 ,  H01L29/786 ,  H01L33/32

Abstract: A novel display is provided. A display having a small change in chromaticity of a micro light-emitting diode in proportion to current density is provided. A display capable of reducing power consumption in the driver circuit when displaying a still image is provided. The display includes a plurality of pixels each including a display element and a microcontroller. The microcontroller includes a first transistor, a triangular wave generator circuit, a comparator, a switch, and a constant current circuit. The first transistor has a function of retaining a potential corresponding to data written to the pixel by being switched off. The triangular wave generator circuit has a function of generating a triangular wave signal. The comparator has a function of generating an output signal corresponding to the potential and the triangular wave signal. The switch has a function of controlling whether or not to make a current flowing in the constant current circuit flow to the display element in accordance with the output signal.

公开(公告)号：US11054710B2

公开(公告)日：2021-07-06

申请号：US16631511

申请日：2018-07-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Koji Kusunoki ,  Kazunori Watanabe ,  Susumu Kawashima

IPC: G02F1/1368 ,  G02F1/1362 ,  H01L27/32

Abstract: A display device capable of performing image processing is provided.
Each pixel is provided with a memory circuit, and desired correction data is held in the memory circuit. The correction data is calculated in an external device and written into each pixel. The correction data is added to image data owing to capacitive coupling, and the resulting data is supplied to a display element. Thus, a corrected image can be displayed with the display element. The correction enables image upconversion or can compensate for an image quality reduction due to characteristics variations of transistors included in pixels.

公开(公告)号：US11016329B2

公开(公告)日：2021-05-25

申请号：US16693498

申请日：2019-11-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Yoshiharu Hirakata

IPC: G06F3/0354 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/1362 ,  H01L27/32 ,  G06F3/041 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/1368 ,  G09G3/20 ,  G02F1/1339 ,  G09G3/3233 ,  G09G3/36 ,  G02F1/167 ,  G02F1/1337

Abstract: Provided is a novel display panel that is highly convenient or reliable, a novel data processor that is highly convenient or reliable, or a method for manufacturing a novel display panel that is highly convenient or reliable. The display panel includes a pixel and a terminal electrically connected to the pixel. The pixel includes a first insulating film, a first contact portion in a first opening provided in the first insulating film, a pixel circuit electrically connected to the first contact portion, a second contact portion electrically connected to the pixel circuit, a first display element electrically connected to the first contact portion, and a second display element electrically connected to the second contact portion. The first insulating film includes a region lying between the first display element and the second display element. The terminal includes a surface at which contact with other component can be made.

公开(公告)号：US10558092B2

公开(公告)日：2020-02-11

申请号：US15455244

申请日：2017-03-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shuhei Yoshitomi ,  Daisuke Kubota ,  Koji Kusunoki

IPC: G02F1/1343 ,  G02F1/1368 ,  G06F1/3234 ,  G02F1/1362

Abstract: A high-definition liquid crystal display device is provided. A liquid crystal display device with a high aperture ratio is provided. A liquid crystal display device with a high contrast ratio and display quality is provided. A liquid crystal display device capable of being driven at a low voltage is provided. The display device includes, between a pair of substrates, a pixel electrode, a first common electrode, a second common electrode, and a liquid crystal layer. The pixel electrode and the first common electrode are positioned between the liquid crystal layer and one of the substrates. The second common electrode is positioned between the liquid crystal layer and the other substrate. The same potential is supplied to the first common electrode and the second common electrode. The first common electrode includes a portion overlapping with the second common electrode between the display regions of two adjacent subpixels that exhibit different colors. At least one of the pixel electrode and the first common electrode includes a portion that does not overlap with the second common electrode in the display region of the subpixel.

公开(公告)号：US10345668B2

公开(公告)日：2019-07-09

申请号：US15987952

申请日：2018-05-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Masataka Nakada ,  Masahiro Katayama ,  Seiji Yasumoto ,  Hiroki Adachi ,  Masataka Sato ,  Koji Kusunoki ,  Yoshiharu Hirakata

IPC: G02F1/1333 ,  G06F3/041 ,  G02F1/1362 ,  H01L27/12

Abstract: Provided is a novel display panel that is highly convenient or highly reliable, a novel input/output device that is highly convenient or highly reliable, or a method for manufacturing a novel display panel that is highly convenient or highly reliable. The present inventors conceived a structure including a first intermediate film, a first electrode including a region in contact with the first intermediate film, a pixel that includes a first display element including the first electrode and a pixel circuit electrically connected to the first display element, a signal line electrically connected to the pixel, and a terminal that includes a third conductive film electrically connected to the signal line and a second intermediate film including a region in contact with the third conductive film.