公开(公告)号：US20210327979A1

公开(公告)日：2021-10-21

申请号：US17272397

申请日：2019-08-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Taisuke KAMADA ,  Ryo HATSUMI ,  Daisuke KUBOTA ,  Daiki NAKAMURA

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device having a photosensing function is provided. A highly convenient display device is provided. The display device includes a light-receiving element and a light-emitting element in a display portion. The light-receiving element includes a first pixel electrode, an active layer, and a common electrode. The light-emitting element includes a second pixel electrode, a light-emitting layer, and a common electrode. The active layer is positioned over the first pixel electrode. The active layer contains a first organic compound. The light-emitting layer is positioned over the second pixel electrode. The light-emitting layer contains 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 provided therebetween, and a portion overlapping with the second pixel electrode with the light-emitting layer provided therebetween. The display device preferably further includes a common layer positioned over the first pixel electrode and the second pixel electrode. The common layer includes a portion overlapping with the active layer and a portion overlapping with the light-emitting layer.

公开(公告)号：US20210141265A1

公开(公告)日：2021-05-13

申请号：US17123392

申请日：2020-12-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Yoshiharu HIRAKATA ,  Tetsuji ISHITANI ,  Daisuke KUBOTA ,  Ryo HATSUMI ,  Masaru NAKANO ,  Takashi HAMADA

IPC: G02F1/1333

Abstract: A display device including a peripheral circuit portion with high operation stability. The display device includes a first substrate and a second substrate. A first insulating layer is on a first plane of the first substrate, and a second insulating layer is on a first plane of the second substrate. An area of the first plane of the first substrate is the same as an area of the first plane of the second substrate. The first plane of the first substrate and the first plane of the second substrate face each other. A bonding layer is between the first insulating layer and the second insulating layer. A protection film is in contact with the first substrate, the first insulating layer, the bonding layer, the second insulating layer, and the second substrate.

公开(公告)号：US20210033905A1

公开(公告)日：2021-02-04

申请号：US17072164

申请日：2020-10-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryo HATSUMI ,  Tetsuji ISHITANI

IPC: G02F1/1333 ,  H01L27/12 ,  H01L29/786 ,  H01L29/24

Abstract: An increase in fabricating cost of a display module including a touch sensor is suppressed. A display device which includes a first substrate, a second substrate, and liquid crystal interposed between the first substrate and the second substrate includes a display portion. The display portion includes a sensor unit and a pixel. The sensor unit includes a first transistor, a first conductive film electrically connected to a gate of the first transistor, and a second conductive film. At least part of the first conductive film overlaps with at least part of the second conductive film. The pixel includes a second transistor, and a pixel electrode electrically connected to the second transistor. At least part of the pixel electrode overlaps with at least part of the first conductive film.

公开(公告)号：US20180350316A1

公开(公告)日：2018-12-06

申请号：US16040884

申请日：2018-07-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryo HATSUMI ,  Shuji FUKAI ,  Daisuke KUBOTA

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G02F2001/134372 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2320/103 ,  G09G2330/021

Abstract: To provide an information processing system allowing eye-friendly display. The information processing system includes a liquid crystal display device (LCD) as a display unit. An image can be displayed in the LCD by at least two driving methods: a first driving method in which data is sequentially rewritten every frame; and a second driving method in which rewriting of data is stopped after data is rewritten once or more times at the same refresh rate as the first driving method. After the display by the second driving method, each pixel is inversely driven plural times by a signal with an amplitude greater than or equal to 80% and less than or equal to 100% of the maximum amplitude of the data signal, whereby degradation of a liquid crystal material is repaired.

公开(公告)号：US20180336840A1

公开(公告)日：2018-11-22

申请号：US15529363

申请日：2015-11-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yasuhiro NIIKURA ,  Makoto IKENAGA ,  Daisuke KUBOTA ,  Ryo HATSUMI

IPC: G09G3/34

Abstract: Provided is a novel display device without deterioration of display quality or a novel display device in which flickering due to a reduced refresh rate is suppressed. The display device includes a pixel for displaying a still image at a frame frequency of less than or equal to 1 Hz. The pixel includes a liquid crystal layer. The liquid crystal layer includes a molecule whose dipole moment is greater than or equal to 0 debye and less than or equal to 3 debye. Thus, flickering due to a reduced refresh rate can be suppressed, which leads to an improvement in display quality.

公开(公告)号：US20180321531A1

公开(公告)日：2018-11-08

申请号：US16039533

申请日：2018-07-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryo HATSUMI ,  Tetsuji ISHITANI

IPC: G02F1/1333 ,  H01L29/786 ,  H01L29/24 ,  H01L27/12 ,  G06F3/041 ,  G02F1/1345

Abstract: An increase in fabricating cost of a display module including a touch sensor is suppressed. A display device which includes a first substrate, a second substrate, and liquid crystal interposed between the first substrate and the second substrate includes a display portion. The display portion includes a sensor unit and a pixel. The sensor unit includes a first transistor, a first conductive film electrically connected to a gate of the first transistor, and a second conductive film. At least part of the first conductive film overlaps with at least part of the second conductive film. The pixel includes a second transistor, and a pixel electrode electrically connected to the second transistor. At least part of the pixel electrode overlaps with at least part of the first conductive film.

公开(公告)号：US20180275448A1

公开(公告)日：2018-09-27

申请号：US15995287

申请日：2018-06-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryo HATSUMI ,  Daisuke KUBOTA ,  Hiroyuki MIYAKE

IPC: G02F1/1333 ,  G02F1/1343 ,  G02F1/1337 ,  G02F1/136

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：US20180052363A1

公开(公告)日：2018-02-22

申请号：US15671750

申请日：2017-08-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Satoshi SEO ,  Ryo HATSUMI

IPC: G02F1/1335 ,  H04N1/60 ,  G02F1/1343 ,  G02F1/137

CPC classification number: G02F1/133553 ,  G02F1/133514 ,  G02F1/133621 ,  G02F1/1343 ,  G02F1/13718 ,  G02F2201/44 ,  H01L27/322 ,  H01L27/3232 ,  H01L27/3244 ,  H01L51/504 ,  H04N1/6058 ,  H04N1/6066

Abstract: A display device capable of displaying images with wide color gamut is provided. A display device capable of displaying images with wide color gamut and capable of relaxing contrast made by narrow spectra is provided. The display device includes a liquid crystal element and a light-emitting element. Light obtained from the liquid crystal element through a color filter has an NTSC area ratio of more than or equal to 20 percent and less than or equal to 60 percent and light emitted by the light-emitting element has a BT.2020 area ratio of more than or equal to 80 percent and less than or equal to 100 percent.

公开(公告)号：US20150301382A1

公开(公告)日：2015-10-22

申请号：US14692297

申请日：2015-04-21

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tetsuji ISHITANI ,  Ryo HATSUMI ,  Koji KUSUNOKI ,  Hiroyuki MIYAKE

IPC: G02F1/1333 ,  G02F1/1343

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G09G3/3618 ,  G09G2340/0435

Abstract: A novel liquid crystal display device (LCD) including a touch sensor. The LCD includes a first substrate and a second substrate, which face each other, and a liquid crystal layer. The first substrate is provided with a pixel electrode. The second substrate is provided with a first electrode, a second electrode, and an insulating layer. The pixel electrode overlaps with the first electrode with the liquid crystal layer interposed therebetween. The second electrode overlaps with the first electrode with the insulating layer interposed therebetween. The LCD generates a signal corresponding to a potential of the second electrode. This structure enables a thin and lightweight LCD.

Abstract translation: 一种包括触摸传感器的新型液晶显示装置（LCD）。 LCD包括彼此面对的第一基板和第二基板以及液晶层。 第一基板设置有像素电极。 第二基板设置有第一电极，第二电极和绝缘层。 像素电极与第一电极重叠，液晶层插入其间。 第二电极与第一电极重叠，绝缘层置于其间。 LCD产生对应于第二电极的电位的信号。 这种结构使薄型轻便的液晶显示器。

公开(公告)号：US20140209897A1

公开(公告)日：2014-07-31

申请号：US14161975

申请日：2014-01-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke KUBOTA ,  Ryo HATSUMI ,  Masami JINTYOU ,  Takumi SHIGENOBU ,  Naoto GOTO

IPC: H01L29/417 ,  H01L29/786

CPC classification number: H01L27/1255 ,  G02F1/13306 ,  G02F1/133305 ,  G02F1/133345 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/1339 ,  G02F1/1341 ,  G02F1/1343 ,  G02F1/136213 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133357 ,  G02F2001/13415 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04108 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1248 ,  H01L27/127 ,  H01L28/60 ,  H01L29/24 ,  H01L29/41733 ,  H01L29/45 ,  H01L29/78633 ,  H01L29/7869 ,  H01L29/78696

Abstract: A semiconductor device having a high aperture ratio and including a capacitor capable of increasing the charge capacity is provided. A semiconductor device includes a transistor over a substrate, a first light-transmitting conductive film over the substrate, an oxide insulating film covering the transistor and having an opening over the first light-transmitting conductive film, a nitride insulating film over the oxide insulating film and in contact with the first light-transmitting conductive film in the opening, a second light-transmitting conductive film connected to the transistor and having a depressed portion in the opening, and an organic resin film with which the depressed portion of the second light-transmitting conductive film is filled.

Abstract translation: 提供了具有高开口率并且包括能够增加充电容量的电容器的半导体器件。 半导体器件包括：衬底上的晶体管，衬底上的第一透光导电膜，覆盖晶体管的氧化物绝缘膜，并且在第一透光导电膜上具有开口;氧化物绝缘膜上的氮化物绝缘膜 并且与开口部中的第一透光性导电膜接触，与该晶体管连接并具有开口部的凹部的第二透光性导电膜，以及第二透光性导电膜， 传输导电膜被填充。