公开(公告)号：US20200209668A1

公开(公告)日：2020-07-02

申请号：US16719369

申请日：2019-12-18

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Kazuhiko TSUDA ,  Takao IMAOKU ,  Ikuko IMAJO

IPC: G02F1/1347 ,  G02F1/1335

Abstract: A liquid crystal display device includes: a first display panel including a first liquid crystal cell; a second display panel including a second liquid crystal cell; and a bonding member that bonds the first and the second display panels together. The bonding member is made of a photocurable resin. In a section in a thickness direction of the first display panel and parallel to either a longitudinal axis direction or a latitudinal axis direction of the first display panel, a relative curing reaction rate at a central representative point of the bonding member is greater than a relative curing reaction rate at an end representative point of the bonding member. A difference between the relative curing reaction rate at the central representative point of the bonding member and the relative curing reaction rate at the end representative point of the bonding member falls within 4%.

公开(公告)号：US20190384081A1

公开(公告)日：2019-12-19

申请号：US16551386

申请日：2019-08-26

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Ikuko MORI ,  Teruhisa NAKAGAWA ,  Kazuhiko TSUDA ,  Katsuji TANAKA

IPC: G02F1/1347 ,  G09G3/36 ,  G02F1/1362 ,  G02F1/1335 ,  G02F1/1368

Abstract: A liquid crystal display device includes: a first display panel; and a second display panel opposing to the first display panel. Each of the first and second display panel includes a plurality of source lines, a plurality of gate lines, a plurality of thin film transistors, and a plurality of pixel electrodes electrically connected to corresponding one of the thin film transistors. In a second display panel, at least two thin film transistors are electrically connected to a same second source line and a same second gate line.

公开(公告)号：US20190137817A1

公开(公告)日：2019-05-09

申请号：US16180431

申请日：2018-11-05

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Yoichi YASUI ,  Katsuhiro KIKUCHI ,  Kazuhiko TSUDA

IPC: G02F1/1335

Abstract: A liquid crystal display device includes: a first polarizing plate, a first liquid crystal cell, a second polarizing plate, a third polarizing plate, a second liquid crystal cell, and a fourth polarizing plate, which are arranged from a front side to a back side in this order. P1, P2, P3, P4 represent degrees of polarization of the first polarizing plate, the second polarizing plate, the third polarizing plate, and the fourth polarizing plate, respectively, one of a relational expression of P1>P2, P3, P4, a relational expressions of P4>P1, P2, P3, and a relational expression of P1, P4>P2, P3 is satisfied.

公开(公告)号：US20180275438A1

公开(公告)日：2018-09-27

申请号：US15928718

申请日：2018-03-22

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Ikuko MORI ,  Teruhisa NAKAGAWA ,  Kazuhiko TSUDA ,  Katsuji TANAKA

IPC: G02F1/1347 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/1335 ,  G09G3/36

CPC classification number: G02F1/1347 ,  G02F1/13306 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/13471 ,  G02F1/136213 ,  G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/134345 ,  G09G3/3625 ,  G09G3/3648 ,  G09G2300/023 ,  G09G2300/0426 ,  G09G2300/0465 ,  G09G2300/0478 ,  G09G2330/10

Abstract: A liquid crystal display device includes: a first display panel; and a second display panel opposing to the first display panel. Each of the first and second display panel includes a plurality of source lines, a plurality of gate lines, a plurality of thin film transistors, and a plurality of pixel electrodes electrically connected to corresponding one of the thin film transistors. In a second display panel, at least two thin film transistors are electrically connected to a same second source line and a same second gate line.

公开(公告)号：US20200089030A1

公开(公告)日：2020-03-19

申请号：US16566456

申请日：2019-09-10

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Kazuhiko TSUDA ,  Yoshiki WATANABE ,  Norimichi SHIRAI

IPC: G02F1/1339 ,  G02F1/1333

Abstract: A method for manufacturing a liquid crystal display device including a display panel provided with a first substrate, a second substrate, and liquid crystal, the method comprises: a first irradiation step of irradiating first positions of a first glass plate and a second glass plate with a laser beam having first irradiation energy; a second irradiation step of irradiating second positions of the first glass plate and the second glass plate with the laser beam having second irradiation energy higher than the first irradiation energy; and an etching step of exposing the display panel to an etching solution after the first irradiation step and the second irradiation step, such that the first positions are not cleaved, the second positions are cleaved, and at least a part of an outer periphery of each of the first substrate and the second substrate is formed.

公开(公告)号：US20190271873A1

公开(公告)日：2019-09-05

申请号：US16286091

申请日：2019-02-26

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Hiroyuki YABUKI ,  Kazuhiko TSUDA

IPC: G02F1/1345 ,  G02F1/1362 ,  G02F1/1339

Abstract: A display device according to a present disclosure comprises: a first glass substrate including a through-hole; a wiring disposed in a first main surface of the first glass substrate; and a terminal formed in a second main surface of the first glass substrate and electrically connected to the wiring through the through-hole.

公开(公告)号：US20180286326A1

公开(公告)日：2018-10-04

申请号：US15475171

申请日：2017-03-31

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Kenta ENDO ,  Kazuhiko TSUDA

IPC: G09G3/36 ,  G09G3/00

CPC classification number: G09G3/3607 ,  G09G3/006 ,  G09G2300/023 ,  G09G2330/10

Abstract: An apparatus and method for a liquid crystal display (LCD). The LCD can include a first LCD panel, a second LCD panel stacked on the first LCD panel, and a data processor that generates, based on an external input image signal, a first image data for the first LCD panel and a second image data for the second LCD panel. The data processor may further include a memory storing a position of a defective pixel of a white spot and a controller changing a gray scale level of a first pixel using the position of the defective pixel, the first pixel at least partially overlapping the position of the defective pixel, wherein the defective pixel is in the first LCD panel and the first pixel is in the second LCD panel.

公开(公告)号：US20180284522A1

公开(公告)日：2018-10-04

申请号：US15476301

申请日：2017-03-31

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Kazuhiko TSUDA

IPC: G02F1/1333 ,  G02F1/1368 ,  G02F1/1335 ,  G02F1/1343

CPC classification number: G02F1/133305 ,  G02F2001/133302 ,  G02F2001/133368

Abstract: A curved LCD and method of manufacturing the same are disclosed. The curved LCD includes a curved LCD panel having first and second substrates. A major surface of the first substrate faces a major surface of the second substrate. A liquid crystal layer is disposed between the major surface of the first substrate and the major surface of the second substrate. A third substrate is made of a glass or a synthetic resin and is curved in geometry. A fourth substrate made of glass is curved in geometry. The LCD panel is secured to the third and fourth substrates between a major surface of the third substrate and a major surface of the fourth substrate. The fourth substrate and the LCD panel are positioned on a concave side of a curve of the fourth substrate. The third substrate is relatively thicker than the fourth substrate.

公开(公告)号：US20180217432A1

公开(公告)日：2018-08-02

申请号：US15882702

申请日：2018-01-29

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Ikuko MORI ,  Tomohiro MURAKOSO ,  Kazuhiko TSUDA

IPC: G02F1/1347 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1362 ,  G09G3/36

CPC classification number: G02F1/13471 ,  G02F1/133305 ,  G02F1/133345 ,  G02F1/133504 ,  G02F1/133512 ,  G02F1/133528 ,  G02F1/1337 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133302 ,  G02F2001/136222 ,  G02F2201/123 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2310/08

Abstract: A liquid crystal display device includes a plurality of display panels which are disposed so as to overlap each other, each of the display panels displaying an image. The liquid crystal display device includes a first substrate; a second substrate disposed opposite to the first substrate in a first direction; a first liquid crystal layer disposed between the first substrate and the second substrate; a third substrate disposed opposite to the first substrate in a second direction that is an opposite direction to the first direction; and a second liquid crystal layer disposed between the first substrate and the third substrate.

公开(公告)号：US20180217424A1

公开(公告)日：2018-08-02

申请号：US15883764

申请日：2018-01-30

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Tomohiro MURAKOSO ,  Kazuhiko TSUDA ,  Ikuko MORI

IPC: G02F1/1339 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1333 ,  G09G3/36

CPC classification number: G02F1/1339 ,  G02F1/133345 ,  G02F1/133514 ,  G02F1/13394 ,  G02F1/13439 ,  G02F1/13471 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133601 ,  G02F2001/13396 ,  G02F2001/13398 ,  G02F2001/134372 ,  G02F2001/136295 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2202/28 ,  G09G3/3611 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/023 ,  G09G2300/0426 ,  G09G2310/08 ,  G09G2320/066

Abstract: A liquid crystal display device in which a plurality of display panels are disposed so as to overlap each other and which displays an image on each of the plurality of display panels. The liquid crystal display device includes a first display panel; and a second display panel disposed so as to overlap the first display panel. The second display panel includes a first substrate on which a source line, a gate line, a thin film transistor, and an organic insulator are formed, a second substrate disposed opposite to the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate, a first spacer is formed in the first substrate to hold a distance between the first substrate and the second substrate. The first spacer and the organic insulator are made of a positive photosensitive resin.