公开(公告)号：US10777585B2

公开(公告)日：2020-09-15

申请号：US16532974

申请日：2019-08-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke Kubota ,  Ryo Hatsumi

IPC: H01L27/12 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/136 ,  H01L29/04 ,  H01L29/786

Abstract: To provide a display device with excellent display quality, in a display device including a signal line, a scan line, a transistor, a pixel electrode, and a common electrode in a pixel, the common electrode is included in which an extending direction of a region overlapping with the signal line differs from an extending direction of a region overlapping with the pixel electrode in a planar shape and the extending directions intersect with each other between the signal line and the pixel electrode. Thus, a change in transmittance of the pixel can be suppressed; accordingly, flickers can be reduced.

公开(公告)号：US20200233509A1

公开(公告)日：2020-07-23

申请号：US16787585

申请日：2020-02-11

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideaki Shishido ,  Yoshiharu Hirakata ,  Daisuke Kubota

IPC: G06F3/044 ,  G02F1/1333

Abstract: To provide a thin touch panel, a touch panel with high visibility, a lightweight touch panel, or a touch panel with low power consumption. A pair of conductive layers included in a capacitive touch sensor have a mesh shape including a plurality of openings. Furthermore, a material blocking visible light is provided to overlap with a region between two display elements in a plan view; thus, a light-blocking layer can be obtained. Furthermore, the pair of conductive layers included in the touch sensor are provided between a pair of substrates included in the touch panel, and a conductive layer capable of supplying a constant potential is provided between a circuit which drives a display element and the pair of conductive layers.

公开(公告)号：US10684500B2

公开(公告)日：2020-06-16

申请号：US15155095

申请日：2016-05-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideaki Shishido ,  Daisuke Kubota ,  Yusuke Kubota

IPC: G02F1/1333 ,  G06F3/041

Abstract: To provide a thin touch panel, a touch panel having a simple structure, a touch panel which can be easily incorporated into an electronic device, or a touch panel with a small number of components. The touch panel includes pixel electrodes arranged in a matrix, a plurality of signal lines, a plurality of scan lines, a plurality of first wirings extending in a direction parallel to the signal lines, and a plurality of second wirings extending in a direction parallel to the scan line. Part of the first wiring and part of the second wiring function as a pair of electrodes included in a touch sensor. The first wiring and the second wiring each have a stripe shape or form a mesh shape and are each provided between two adjacent pixel electrodes in a plan view.

公开(公告)号：US10680020B2

公开(公告)日：2020-06-09

申请号：US15473962

申请日：2017-03-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Yasuharu Hosaka ,  Satoru Idojiri ,  Kenichi Okazaki ,  Hiroki Adachi ,  Daisuke Kubota

IPC: H01L27/12 ,  H01L21/683 ,  H01L29/66 ,  H01L29/786 ,  H01L27/32

Abstract: A peeling method at low cost with high mass productivity is provided. A resin layer having a thickness greater than or equal to 0.1 μm and less than or equal to 3 μm is formed over a formation substrate using a photosensitive and thermosetting material, a transistor including an oxide semiconductor in a channel formation region is formed over the resin layer, the resin layer is irradiated with light using a linear laser device, and the transistor and the formation substrate are separated from each other. A first region and a second region which is thinner than the first region or an opening can be formed in the resin layer. In the case of forming a conductive layer functioning as an external connection terminal or the like to overlap with the second region or the opening of the resin layer, the conductive layer is exposed.

公开(公告)号：US10678078B2

公开(公告)日：2020-06-09

申请号：US15661331

申请日：2017-07-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke Kubota ,  Yusuke Kubota

IPC: G02F1/1333 ,  G02F1/1335 ,  G06F3/041 ,  G02F1/1343 ,  G02F1/1368 ,  G02F1/1337 ,  H01L27/12 ,  H01L27/32 ,  G02F1/13357

Abstract: A thin display device, a lightweight display device, or a bendable display device is provided. The display device can be fabricated by a method including a first step of forming a first electrode and a second electrode over a substrate such that they are apart from each other; a second step of sequentially forming a light-blocking layer over a support substrate, a resin layer covering the light-blocking layer, and a first coloring layer and a second coloring layer over the resin layer; a third step of bonding the substrate and the support substrate to each other with a liquid crystal layer containing liquid crystal, monomers, and a polymerization initiator positioned therebetween; a fourth step of performing light irradiation from the support substrate side so that the monomers in the liquid crystal layer are polymerized in a region not shielded by the light-blocking layer; and a fifth step of performing separation between the resin layer and each of the support substrate and the light-blocking layer to remove the support substrate and the light-blocking layer.

公开(公告)号：US10672609B2

公开(公告)日：2020-06-02

申请号：US15615377

申请日：2017-06-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuji Iwaki ,  Daisuke Kubota ,  Kentaro Hayashi

IPC: H01L21/027 ,  G09G3/34 ,  G09G3/36 ,  G01J1/44 ,  G06F7/575 ,  G06T1/20 ,  G09G3/20 ,  G01J1/32 ,  H01L27/12 ,  H01L29/786 ,  G09G5/36

Abstract: A display device which can display a clear image and can display an image with low power consumption is provided. The display device includes an arithmetic circuit having a function of generating first to third display data, a first display portion, and a second display portion. The arithmetic circuit has a function of detecting a color region and a gray-scale region of the generated first display data and generating the second display data corresponding to an image to be displayed on the first display portion and the third display data corresponding to an image to be displayed on the second display portion, on the basis of the detection results.

公开(公告)号：US10585319B2

公开(公告)日：2020-03-10

申请号：US15995287

申请日：2018-06-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryo Hatsumi ,  Daisuke Kubota ,  Hiroyuki Miyake

IPC: G02F1/1362 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/1343

Abstract: A display device with less light leakage and excellent contrast is provided. A display device having a high aperture ratio and including a large-capacitance capacitor is provided. A display device in which wiring delay due to parasitic capacitance is reduced is provided. A display device includes a transistor over a substrate, a pixel electrode connected to the transistor, a signal line electrically connected to the transistor, a scan line electrically connected to the transistor and intersecting with the signal line, and a common electrode overlapping with the pixel electrode and the signal line with an insulating film provided therebetween. The common electrode includes stripe regions extending in a direction intersecting with the signal line.

公开(公告)号：US20200074940A1

公开(公告)日：2020-03-05

申请号：US16657289

申请日：2019-10-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Daisuke Kubota

IPC: G09G3/34 ,  G09G5/10 ,  G09G3/20

Abstract: Power consumption of a display device is reduced. Display quality of a display device is improved. A high-quality image can be displayed regardless of a usage environment. The display device includes a first display element, a second display element, and a control portion. The first display device reflects visible light. The second display element emits visible light.The control portion is configured to drive the first display element and the second display element at the same time such that a maximum value of luminance of light emitted from the second display element is greater than or equal to 1% and less than or equal to 50% of maximum luminance on the assumption that maximum luminance of light which is emitted from the second display element is 100%.

公开(公告)号：US10437123B2

公开(公告)日：2019-10-08

申请号：US15738696

申请日：2016-06-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke Kubota ,  Makoto Kaneyasu

IPC: G02F1/1362 ,  G02F1/1368 ,  H01L29/786 ,  G09G3/36

Abstract: A novel liquid crystal display device is provided.Two pixels each include a transistor that includes a back gate. The transistor is connected to the common gate line and data line. A threshold voltage is controlled by a control signal supplied to a back gate so that while data is written to one pixel, the transistor of the other pixel is not turned on. The aperture ratio is improved by reducing the number of wirings connected to the pixel and increasing the frequency of the control signal supplied to the back gate.

公开(公告)号：US10185449B2

公开(公告)日：2019-01-22

申请号：US15140626

申请日：2016-04-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideaki Shishido ,  Yoshiharu Hirakata ,  Daisuke Kubota

IPC: G06F3/045 ,  G06F3/044 ,  G02F1/1333 ,  G06F3/041 ,  G09G3/00

Abstract: To provide a thin touch panel, a touch panel with high visibility, a lightweight touch panel, or a touch panel with low power consumption. A pair of conductive layers is included in a capacitive touch sensor. The two conductive layers have a mesh shape including a plurality of openings. Furthermore, the conductive layers are provided to overlap with a region between two display elements in a plan view. Furthermore, the conductive layers included in the touch sensor are provided between two substrates included in the touch panel, and a conductive layer capable of supplying a constant potential is provided between a circuit which drives a display element and the pair of conductive layers.