公开(公告)号：US20180120653A1

公开(公告)日：2018-05-03

申请号：US15858241

申请日：2017-12-29

Applicant: Japan Display Inc.

Inventor： Seiji Uejima ,  Hidemasa Yamaguchi ,  Yoshitaka Ozeki ,  Takeyuki Tsuruma ,  Kenta Seki ,  Toshiaki Fukushima

IPC: G02F1/1343

Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first line, a second line, a switching element, a common electrode, an insulating film disposed on the common electrode, a pixel electrode connected with the switching element and opposed to the common electrode with the insulating film interposed therebetween, and a first alignment film covering the pixel electrode. The second substrate includes a second alignment film. And the pixel electrode includes one main pixel electrode extending in a belt shape in a pixel area defined by the first line and the second line.

公开(公告)号：US09941412B2

公开(公告)日：2018-04-10

申请号：US15475721

申请日：2017-03-31

Applicant: Japan Display Inc.

Inventor： Takeyuki Tsuruma ,  Yoshihide Ohue ,  Masakatsu Kitani

IPC: H01L27/148 ,  H01L21/3205 ,  H01L29/786 ,  G02F1/1362 ,  G02F1/1343

CPC classification number: H01L29/78645 ,  G02F1/133512 ,  G02F1/134309 ,  G02F1/136286 ,  G02F2001/134345 ,  G02F2001/134372 ,  G02F2202/104

Abstract: According to one embodiment, a display device includes a first scanning line, a signal line, a second pixel electrode, a first pixel electrode, a second thin-film transistor, a first line and a second line. The first line is connected to the second pixel electrode, and extends through a region facing the first pixel electrode to the first scanning line side. The first line and a second semiconductor layer of the second thin-film transistor are provided on a first insulating film and are formed of a same material. The second line connects the first line and a fourth electrode of the second thin-film transistor.

公开(公告)号：US09891479B2

公开(公告)日：2018-02-13

申请号：US14602604

申请日：2015-01-22

Applicant: Japan Display Inc.

Inventor： Seiji Uejima ,  Hidemasa Yamaguchi ,  Yoshitaka Ozeki ,  Takeyuki Tsuruma ,  Kenta Seki ,  Toshiaki Fukushima

IPC: G02F1/1343

CPC classification number: G02F1/134309 ,  G02F2001/134372

Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first line, a second line, a switching element, a common electrode, an insulating film disposed on the common electrode, a pixel electrode connected with the switching element and opposed to the common electrode with the insulating film interposed therebetween, and a first alignment film covering the pixel electrode. The second substrate includes a second alignment film. And the pixel electrode includes one main pixel electrode extending in a belt shape in a pixel area defined by the first line and the second line.

公开(公告)号：US09804448B2

公开(公告)日：2017-10-31

申请号：US14596535

申请日：2015-01-14

Applicant: Japan Display Inc.

Inventor： Takeyuki Tsuruma ,  Hidemasa Yamaguchi

IPC: G02F1/1343 ,  G02F1/1337

CPC classification number: G02F1/134309 ,  G02F1/133707 ,  G02F1/134363

Abstract: An IPS LCD that not only increases the screen luminance but also prevents the occurrence of image blurs by reducing the area of disclination and preventing the liquid crystal molecules from rising in a direction normal to the TFT substrate. A pixel electrode is disposed in the pixel surrounded by two gate lines and two data lines. A planar common electrode is located below the pixel electrode with an inter-layer insulating film provided therebetween. The pixel electrode includes slits each being open at the edge on one side and has the shape of a comb. Liquid crystals with negative dielectric anisotropy are used as liquid crystal. The above structure increases the transmissive area of the pixel up to the open edges of the slits and also prevents the liquid crystal molecules from rising in a direction normal to the TFT substrate, thereby preventing the occurrence of blurs.

公开(公告)号：US10520779B2

公开(公告)日：2019-12-31

申请号：US16152476

申请日：2018-10-05

Applicant: Japan Display Inc.

Inventor： Takeyuki Tsuruma ,  Hidemasa Yamaguchi

IPC: G02F1/1343 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/1362

Abstract: In order to increase the transmittance around a pixel and to increase the brightness of the screen in an IPS mode liquid crystal display device, a pixel electrode with a slit is formed on a common electrode through an interlayer insulating film. An opening is formed in the common electrode on the outside of the end portion of the pixel electrode as seen in a plane view. Because of the presence of the opening, the electric field lines from the end portion of the pixel electrode reach the layer above the liquid crystal layer and reach further away from the end portion of the pixel electrode, so that it is possible to increase the control ability to the liquid crystal around the pixel. As a result, the pixel transmittance can be increased as a whole and the brightness of the screen can be increased.

公开(公告)号：US09978321B2

公开(公告)日：2018-05-22

申请号：US15221768

申请日：2016-07-28

Applicant: Japan Display Inc.

Inventor： Takeyuki Tsuruma ,  Akira Sakaigawa ,  Masaaki Kabe ,  Kojiro Ikeda

IPC: G09G3/36 ,  G02F1/13

CPC classification number: G09G3/3607 ,  G02F1/13 ,  G02F1/134309 ,  G02F2001/134345 ,  G09G3/3648 ,  G09G2300/0452 ,  G09G2300/0465

Abstract: According to one embodiment, a display device includes signal lines, scanning lines, a first pixel, a second pixel and a third pixel. The first pixel including a first subpixel which displays a first color, a second subpixel which displays white, and a third subpixel which displays a second color. The second pixel including a fourth subpixel which displays a third color, a fifth subpixel which displays white, and a sixth subpixel which displays the first color. The third pixel including a seventh subpixel which displays the second color, an eighth subpixel which displays white, and a ninth subpixel which displays the third color.

公开(公告)号：US10394369B2

公开(公告)日：2019-08-27

申请号：US15292769

申请日：2016-10-13

Applicant: Japan Display Inc.

Inventor： Takeyuki Tsuruma ,  Masaru Uchiyama ,  Michiaki Sakamoto ,  Koji Ishizaki

IPC: G06F3/045 ,  G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G06F3/044 ,  G09G3/36 ,  G02F1/1368

Abstract: According to one embodiment, a display device includes a display area with pixels, and a detection electrode which includes first conductive lines overlapping the display area. Each of the pixels includes a first subpixel, a second subpixel adjacent to the first subpixel in a first direction, a third subpixel adjacent to the first subpixel in a second direction, and a fourth subpixel adjacent to the third subpixel in the first direction and to the second subpixel in the second direction. The pixels are arranged in the first direction with a first pitch, and the first conductive lines are arranged in the first direction with a second pitch which falls within a range of 2.2 times the first pitch or more and 3.2 times the first pitch or less.

公开(公告)号：US10120245B2

公开(公告)日：2018-11-06

申请号：US15349032

申请日：2016-11-11

Applicant: Japan Display Inc.

Inventor： Takeyuki Tsuruma ,  Hidemasa Yamaguchi

IPC: G02F1/1343 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/1362

Abstract: In order to increase the transmittance around a pixel and to increase the brightness of the screen in an IPS mode liquid crystal display device, a pixel electrode with a slit is formed on a common electrode through an interlayer insulating film. An opening is formed in the common electrode on the outside of the end portion of the pixel electrode as seen in a plane view. Because of the presence of the opening, the electric field lines from the end portion of the pixel electrode reach the layer above the liquid crystal layer and reach further away from the end portion of the pixel electrode, so that it is possible to increase the control ability to the liquid crystal around the pixel. As a result, the pixel transmittance can be increased as a whole and the brightness of the screen can be increased.

公开(公告)号：US10527891B2

公开(公告)日：2020-01-07

申请号：US15858241

申请日：2017-12-29

Applicant: Japan Display Inc.

Inventor： Seiji Uejima ,  Hidemasa Yamaguchi ,  Yoshitaka Ozeki ,  Takeyuki Tsuruma ,  Kenta Seki ,  Toshiaki Fukushima

IPC: G02F1/1343

Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first line, a second line, a switching element, a common electrode, an insulating film disposed on the common electrode, a pixel electrode connected with the switching element and opposed to the common electrode with the insulating film interposed therebetween, and a first alignment film covering the pixel electrode. The second substrate includes a second alignment film. And the pixel electrode includes one main pixel electrode extending in a belt shape in a pixel area defined by the first line and the second line.

公开(公告)号：US20190041706A1

公开(公告)日：2019-02-07

申请号：US16152476

申请日：2018-10-05

Applicant: Japan Display Inc.

Inventor： Takeyuki Tsuruma ,  Hidemasa Yamaguchi

IPC: G02F1/1343 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/1362

CPC classification number: G02F1/134336 ,  G02F1/133345 ,  G02F1/134363 ,  G02F1/13439 ,  G02F1/136227 ,  G02F1/1368 ,  G02F2001/134372 ,  G02F2201/123 ,  G02F2202/103

Abstract: In order to increase the transmittance around a pixel and to increase the brightness of the screen in an IPS mode liquid crystal display device, a pixel electrode with a slit is formed on a common electrode through an interlayer insulating film. An opening is formed in the common electrode on the outside of the end portion of the pixel electrode as seen in a plane view. Because of the presence of the opening, the electric field lines from the end portion of the pixel electrode reach the layer above the liquid crystal layer and reach further away from the end portion of the pixel electrode, so that it is possible to increase the control ability to the liquid crystal around the pixel. As a result, the pixel transmittance can be increased as a whole and the brightness of the screen can be increased.