公开(公告)号：US20170363891A1

公开(公告)日：2017-12-21

申请号：US15507084

申请日：2015-08-24

Applicant: Sharp Kabushiki Kaisha

Inventor： Koichi MIYACHI ,  Masanobu MIZUSAKI ,  Tsuyoshi OKAZAKI ,  Hiroshi TSUCHIYA ,  Isamu MIYAKE ,  Toshihiro MATSUMOTO

IPC: G02F1/1339 ,  C09K15/30 ,  C09K19/12 ,  C09K19/54 ,  C09K15/08 ,  G02F1/1337 ,  C09K19/56 ,  G02F1/1341 ,  C09K19/30

CPC classification number: G02F1/1339 ,  C08F22/06 ,  C08G73/1075 ,  C09K15/08 ,  C09K15/30 ,  C09K19/12 ,  C09K19/30 ,  C09K19/3003 ,  C09K19/3098 ,  C09K19/54 ,  C09K19/56 ,  C09K2019/122 ,  C09K2019/3004 ,  C09K2019/301 ,  C09K2019/3016 ,  G02F1/13 ,  G02F1/133711 ,  G02F1/133788 ,  G02F1/1341 ,  G02F2001/133397 ,  G02F2001/13415

Abstract: The present invention provides a liquid crystal display device that maintains a sufficient voltage holding ratio over a long period of time even when a liquid crystal panel having a narrower frame is used and that undergoes no burn-in or no stains on a display screen. The liquid crystal display device of the present invention includes an active-matrix liquid crystal panel and a backlight, wherein the liquid crystal panel includes a liquid crystal layer, a pair of substrates between which the liquid crystal layer is sandwiched, alignment layers disposed on surfaces of the pair of substrates facing the liquid crystal layer, and a seal part that bonds the pair of substrates to each other and that is disposed around the liquid crystal layer, and the liquid crystal panel is formed by a liquid crystal one-drop fill process, wherein the liquid crystal layer includes a liquid crystal material and at least one of a radical scavenger and an antioxidant, and the seal part has a width of 0.6 mm or less at least in part.

公开(公告)号：US20170090251A1

公开(公告)日：2017-03-30

申请号：US15126305

申请日：2015-02-17

Applicant: Sharp Kabushiki Kaisha

Inventor： Masanobu MIZUSAKI ,  Youhei NAKANISHI ,  Toshihiro MATSUMOTO

IPC: G02F1/1337 ,  G02F1/1339

CPC classification number: G02F1/133711 ,  G02F1/133703 ,  G02F1/133788 ,  G02F1/1339 ,  G02F2001/133738 ,  G02F2001/133742 ,  Y10T428/10 ,  Y10T428/1036

Abstract: The present invention provides a liquid crystal display device less likely to cause peeling even with a narrow frame, and capable of achieving both a horizontal alignment mode and a vertical alignment mode without conventional alignment films; and a method for producing the liquid crystal display device. The liquid crystal display device includes a pair of substrates disposed to face each other; a liquid crystal layer and a sealing material disposed between the substrates; and an alignment control layer designed to control the alignment of liquid crystal molecules and disposed between each of the substrates and the liquid crystal layer, the substrates being in direct contact with the sealing material, the alignment control layers each being made of a polarized-light-absorbing compound, the polarized-light-absorbing compound containing in a molecule at least one of a phenylene group and a phenyl group and at least one of a carbonyl group and an azo group.

公开(公告)号：US20150056544A1

公开(公告)日：2015-02-26

申请号：US14464732

申请日：2014-08-21

Applicant: Sharp Kabushiki Kaisha ,  JNC CORPORATION

Inventor： Isamu MIYAKE ,  Hiroaki ASAGI ,  Toshihiro MATSUMOTO ,  Koichi MIYACHI ,  Youichiro OOKI ,  Fumitaka KONDO

IPC: G03F7/26 ,  G03F7/20

CPC classification number: G02F1/133788 ,  G02F1/133723 ,  G03F7/0387

Abstract: Provided is a method for manufacturing a liquid crystal display device that includes a photoalignment film. The photoalignment film is formed from a liquid crystal alignment agent, and aligns liquid crystal molecules horizontally to the main face of the at least one of the substrates. The liquid crystal alignment agent contains a solvent and at least two kinds of polyamic acids or their derivatives obtained by reacting diamine and tetracarboxylic dianhydride. At least two of the diamines and at least one of the tetracarboxylic dianhydrides are compounds represented by predetermined formulas. The method includes the steps of: (1) forming the film of the liquid crystal alignment agent; (2) pre-baking the film; (3) irradiating the pre-baked film with light; and (4) post-baking the irradiated film, the step (4) including an operation of post-baking the film multiple times at temperatures ranging from low to high temperatures.

Abstract translation: 提供了一种制造包括光电转换膜的液晶显示装置的方法。 光电子对准膜由液晶取向剂形成，并且将液晶分子水平地对准至少一个基板的主面。 液晶取向剂含有溶剂和通过二胺和四羧酸二酐反应得到的至少两种聚酰胺酸或其衍生物。 至少两种二胺和四羧酸二酐中的至少一种是由预定式表示的化合物。 该方法包括以下步骤：（1）形成液晶取向剂的膜; （2）预烘烤薄膜; （3）用光照射预烘膜; 和（4）对所述被照射的膜进行后烘烤，所述工序（4）包括在从低温到高温的温度下多次后烘烤所述膜的工序。

公开(公告)号：US20190113781A1

公开(公告)日：2019-04-18

申请号：US16215708

申请日：2018-12-11

Applicant: Sharp Kabushiki Kaisha

Inventor： Koichi MIYACHI ,  Masanobu MIZUSAKI ,  Tsuyoshi OKAZAKI ,  Hiroshi TSUCHIYA ,  Isamu MIYAKE ,  Toshihiro MATSUMOTO

IPC: G02F1/133 ,  C09K19/30 ,  G02F1/1335 ,  C09K19/54 ,  C08G73/10 ,  C08F32/00 ,  G02F1/1337

Abstract: The present invention provides a liquid crystal display device that, with photo-alignment films, can maintain a favorable voltage holding ratio for a long period of time and prevent generation of image sticking and stains on the display screen. The liquid crystal display device includes: an active-matrix liquid crystal panel; and a backlight, the liquid crystal panel including a liquid crystal layer, paired substrates holding the liquid crystal layer in between, and alignment films disposed on the liquid crystal layer side surfaces of the respective substrates, the alignment films each being a photo-alignment film formed from a material exhibiting photo-alignment performance, the liquid crystal layer containing a liquid crystal material and a radical scavenger.

公开(公告)号：US20170276976A1

公开(公告)日：2017-09-28

申请号：US15506900

申请日：2015-08-24

Applicant: Sharp Kabushiki Kaisha

Inventor： Koichi MIYACHI ,  Masanobu MIZUSAKI ,  Tsuyoshi OKAZAKI ,  Hiroshi TSUCHIYA ,  Isamu MIYAKE ,  Toshihiro MATSUMOTO

IPC: G02F1/133 ,  G02F1/1337 ,  G02F1/1335

CPC classification number: G02F1/133 ,  C08F32/00 ,  C08F2222/102 ,  C08G73/10 ,  C09K19/3098 ,  C09K19/54 ,  C09K2019/0448 ,  C09K2019/122 ,  C09K2019/3009 ,  C09K2019/3016 ,  G02F1/133528 ,  G02F1/133533 ,  G02F1/1337 ,  G02F1/133788 ,  G02F2001/133545

Abstract: The present invention provides a liquid crystal display device that, with photo-alignment films, can maintain a favorable voltage holding ratio for a long period of time and prevent generation of image sticking and stains on the display screen. The liquid crystal display device includes: an active-matrix liquid crystal panel; and a backlight, the liquid crystal panel including a liquid crystal layer, paired substrates holding the liquid crystal layer in between, and alignment films disposed on the liquid crystal layer side surfaces of the respective substrates, the alignment films each being a photo-alignment film formed from a material exhibiting photo-alignment performance, the liquid crystal layer containing a liquid crystal material and a radical scavenger.

公开(公告)号：US20210132421A1

公开(公告)日：2021-05-06

申请号：US17149920

申请日：2021-01-15

Applicant: Sharp Kabushiki Kaisha

Inventor： Koichi MIYACHI ,  Masanobu MIZUSAKI ,  Tsuyoshi OKAZAKI ,  Hiroshi TSUCHIYA ,  Isamu MIYAKE ,  Toshihiro MATSUMOTO

IPC: G02F1/133 ,  C09K19/54 ,  C08G73/10 ,  C08F32/00 ,  C09K19/30 ,  G02F1/1337 ,  G02F1/1335

Abstract: The present invention provides a liquid crystal display device that, with photo-alignment films, can maintain a favorable voltage holding ratio for a long period of time and prevent generation of image sticking and stains on the display screen. The liquid crystal display device includes: an active-matrix liquid crystal panel; and a backlight, the liquid crystal panel including a liquid crystal layer, paired substrates holding the liquid crystal layer in between, and alignment films disposed on the liquid crystal layer side surfaces of the respective substrates, the alignment films each being a photo-alignment film formed from a material exhibiting photo-alignment performance, the liquid crystal layer containing a liquid crystal material and a radical scavenger.