公开(公告)号：US20150268516A1

公开(公告)日：2015-09-24

申请号：US14731485

申请日：2015-06-05

Applicant: Sharp Kabushiki Kaisha

Inventor： Koichi MIYACHI ,  Isamu MIYAKE

IPC: G02F1/1337

CPC classification number: G02F1/133788 ,  G02F1/133711 ,  G02F1/1368 ,  G02F2001/133738

Abstract: The present invention provides a method for manufacturing a liquid crystal display device, which hardly causes display unevenness in joining parts in which mutually neighboring exposure regions are overlapped upon carrying out a photo-alignment treatment for forming a horizontal alignment film. The method for manufacturing a liquid crystal display device of the present invention includes a step of forming a horizontal alignment film by carrying out a photo-alignment treatment of irradiating a photo-alignment film material applied to at least one substrate of a pair of substrates with polarized light, wherein the photo-alignment treatment is carried out by exposure to a plurality of regions of one substrate surface; two neighboring regions among the plurality of regions to be exposed include an overlapped part; an irradiation amount of the polarized light to the overlapped part is gradually lowered in one of the two neighboring regions toward the other of the two neighboring regions; and the overlapped part of the two neighboring regions has a width of 20 mm or wider.

Abstract translation: 本发明提供一种制造液晶显示装置的方法，在进行用于形成水平取向膜的光取向处理时，难以使相邻的曝光区域重叠的接合部的显示不均匀。 本发明的液晶显示装置的制造方法包括以下步骤：通过对施加到一对基板的至少一个基板的光取向膜材料进行光取向处理来形成水平取向膜， 偏振光，其中通过暴露于一个衬底表面的多个区域进行光取向处理; 要曝光的多个区域中的两个相邻区域包括重叠部分; 两个相邻区域中的一个区域中的重叠部分的偏振光的照射量逐渐降低到两个相邻区域中的另一个区域; 并且两个相邻区域的重叠部分具有20mm或更宽的宽度。

公开(公告)号：US20200041849A1

公开(公告)日：2020-02-06

申请号：US16339873

申请日：2017-10-02

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Hiroaki ASAGI ,  Isamu MIYAKE

IPC: G02F1/1337

Abstract: The present invention provides a liquid crystal aligning agent for a TFT substrate, a liquid crystal display panel, and a method for fabricating a liquid crystal display panel, capable of preventing the decrease in panel yield caused by ink repelling. The liquid crystal aligning agent for a TFT substrate, containing a polymer and a solvent, wherein the liquid crystal aligning agent contains 10% by weight or more of diisobutyl ketone relative to a total weight, the TFT substrate includes a channel protection film, and the channel protection film includes an insulating film containing silicon and nitrogen.

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：US20160282678A1

公开(公告)日：2016-09-29

申请号：US15178684

申请日：2016-06-10

Applicant: Sharp Kabushiki Kaisha

Inventor： Isamu MIYAKE ,  Koichi MIYACHI ,  Yuko TERAOKA

IPC: G02F1/1337 ,  G02F1/1339 ,  G02F1/1341

CPC classification number: G02F1/133788 ,  C09K19/3003 ,  C09K19/56 ,  C09K2019/3004 ,  G02F1/133711 ,  G02F1/1339 ,  G02F1/1341 ,  G02F2001/133715 ,  G02F2001/133738 ,  G02F2001/13415

Abstract: The present invention provides a method for manufacturing a liquid crystal display device capable of suppressing display unevenness around a seal in the case of performing PS treatment on a horizontal alignment film formed from a photoactive material. The method for manufacturing a liquid crystal display device of the present invention includes the steps of: forming a horizontal alignment film containing a photoactive material on at least one substrate of a pair of substrates; dropping a liquid crystal composition containing a liquid crystal material and a monomer on one of the pair of substrates, the monomer being contained in an amount of 1.0% by weight or less in the whole liquid crystal composition; curing a sealing material applied to one substrate of the pair of substrates along an outer edge thereof by irradiating the sealing material with light whose wavelength is 40 nm or more longer than an absorption wavelength edge of the monomer; and forming a polymer layer that controls the alignment of liquid crystal molecules adjacent thereto on the horizontal alignment film by irradiating the liquid crystal composition sealed between the pair of substrates with light to polymerize the monomer.

Abstract translation: 本发明提供一种制造液晶显示装置的方法，该液晶显示装置能够在由光敏材料形成的水平取向膜上进行PS处理的情况下，抑制密封周围的显示不均匀。 本发明的液晶显示装置的制造方法包括以下步骤：在一对基板的至少一个基板上形成含有光活性材料的水平取向膜; 将含有液晶材料和单体的液晶组合物滴在一对基板中的一个基板上，在整个液晶组合物中含有1.0重量％以下的单体; 通过用波长比单体的吸收波长边缘长40nm或更长的光照射密封材料来固化沿其外边缘施加到一对基板的一个基板上的密封材料; 并且通过用光照射密封在一对基板之间的液晶组合物来形成聚合物层，该聚合物层通过在水平取向膜上控制与其相邻的液晶分子的取向来聚合单体。

公开(公告)号：US20160178968A1

公开(公告)日：2016-06-23

申请号：US14907870

申请日：2014-07-24

Applicant: Sharp Kabushiki Kaisha

Inventor： Isamu MIYAKE ,  Koichi MIYACHI ,  Hiroaki ASAGI

IPC: G02F1/1337

CPC classification number: G02F1/133788 ,  C09D179/08 ,  G02F1/133711

Abstract: The present invention provides a method for manufacturing a liquid crystal display device including a photo-alignment film and capable of sufficiently improving the display quality. The method for manufacturing a liquid crystal display device of the present invention is a method for manufacturing a liquid crystal display device including a photo-alignment film. The method for manufacturing a liquid crystal display device successively includes a step (1) of forming on a substrate a film from a photo-alignment-film material that contains a solvent, a polymer including a photo-functional group that is capable of causing at least one chemical reaction selected from the group consisting of photodimerization, photoisomerization, and photo-Fries rearrangement, and a polymer including a polyamic acid backbone and free from the photo-functional group; a step (2) of pre-heating the film to evaporate the solvent; a step (3) of irradiating the pre-heated film with polarized light; and a step (4) of main-heating the polarized-light-irradiated film. The liquid crystal display device is of an in-plane switching mode or a fringe field switching mode in each of which a pre-tilt angle is substantially 0°.

Abstract translation: 本发明提供了一种制造包括光取向膜并能够充分提高显示质量的液晶显示装置的方法。 本发明的液晶显示装置的制造方法是具有光取向膜的液晶显示装置的制造方法。 液晶显示装置的制造方法依次包括：在基板上由含有溶剂的光取向膜材料形成膜的步骤（1），含有能够引起溶剂的光官能团的聚合物 选自光聚合，光致异构化和光 - 弗里斯重排的至少一种化学反应，以及包含聚酰胺酸骨架并且不含光官能团的聚合物; 步骤（2）预​​热所述膜以蒸发溶剂; 步骤（3），用偏振光照射预热膜; 以及主要加热偏振光照射膜的步骤（4）。 液晶显示装置具有面内切换模式或边缘场切换模式，其中预倾角基本上为0°。

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：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.

公开(公告)号：US20190221927A1

公开(公告)日：2019-07-18

申请号：US16336215

申请日：2017-09-22

Applicant: Sharp Kabushiki Kaisha

Inventor： Kei SHINADA ,  Isamu MIYAKE ,  Takashi KATAYAMA

IPC: H01Q1/38 ,  H01Q21/06 ,  H01Q19/10 ,  C09K19/56 ,  C09K19/10

CPC classification number: H01Q1/38 ,  C09K19/10 ,  C09K19/12 ,  C09K19/18 ,  C09K19/56 ,  C09K2019/0448 ,  G02F1/13 ,  G02F1/1337 ,  H01L27/1222 ,  H01L27/124 ,  H01L29/78669 ,  H01Q3/34 ,  H01Q3/44 ,  H01Q13/22 ,  H01Q19/10 ,  H01Q21/06 ,  H01Q21/064

Abstract: A liquid crystal cell according to the present invention includes: a TFT substrate including a first dielectric substrate, TFTs supported on the first dielectric substrate, and patch electrodes electrically connected to the TFTs; a slot substrate including a second dielectric substrate and a slot electrode including slots supported on the second dielectric substrate; a liquid crystal layer interposed between the TFT substrate and the slot substrate which are arranged in a form in which the patch electrode and the slot electrode face each other; antenna units each including one of the patch electrodes and the slot electrode including at least one of the slots arranged corresponding to the one of the patch electrodes; and alignment films formed on surfaces of both of the TFT substrate and the slot substrate facing the liquid crystal layer, made of a polyimide-based resin, and having a relative dielectric constant of 3.8 or more.

公开(公告)号：US20180129101A1

公开(公告)日：2018-05-10

申请号：US15500614

申请日：2015-07-24

Applicant: Sharp Kabushiki Kaisha

Inventor： Yuichi KAWAHIRA ,  Isamu MIYAKE

IPC: G02F1/1335 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1333

CPC classification number: G02F1/133528 ,  G02F1/133345 ,  G02F1/133602 ,  G02F1/133634 ,  G02F1/1337 ,  G02F1/133784 ,  G02F1/133788 ,  G02F1/1343 ,  G02F1/134363 ,  G02F2001/133635 ,  G02F2001/133749 ,  G02F2001/134372 ,  G02F2201/50 ,  G02F2202/40 ,  G02F2413/02 ,  G02F2413/05 ,  G02F2413/11 ,  G02F2413/13

Abstract: The present invention is a liquid crystal display device including a first polarizer, a first protective layer, a first substrate, a first optical alignment film, a liquid crystal layer, a second optical alignment film, a second substrate including a signal electrode and an opposite electrode, a second protective layer, a second polarizer in this order, in which the layers satisfy the relationship nx=ny≥nz, an in-plane retardation of each of optical alignment films is greater than or equal to 1 nm, given that R1 is a thickness-direction retardation of each of the protective layers and that R2 is the in-plane retardation of each of optical alignment films, the relationship R1≤0.047R22−2.1R2+44.3 is satisfied, the liquid crystal layer has a positive dielectric anisotropy, and a transmission axis of the second polarizer is perpendicular to an initial alignment direction of the liquid crystal molecules.

公开(公告)号：US20170355853A1

公开(公告)日：2017-12-14

申请号：US15531380

申请日：2015-11-26

Applicant: Sharp Kabushiki Kaisha

Inventor： Hiroaki ASAGI ,  Isamu MIYAKE ,  Yuichi KAWAHIRA

IPC: C08L101/02 ,  C08L101/04 ,  C08L101/10 ,  G02F1/1337

CPC classification number: C08L101/025 ,  C08G73/1078 ,  C08G77/20 ,  C08L101/00 ,  C08L101/02 ,  C08L101/04 ,  C08L101/10 ,  C09D179/08 ,  C09D183/06 ,  C09D201/02 ,  G02F1/1337 ,  G02F1/133711 ,  G02F1/133723 ,  G02F1/133788 ,  G02F2202/025 ,  C08L83/06

Abstract: The present invention provides a method for manufacturing a liquid crystal display device which requires a reduced light irradiation dose in the alignment treatment for a photo-alignment film and achieves a favorable contrast ratio and a viewing angle property. The method for manufacturing a liquid crystal display device includes, in the following order, the steps of: (1) forming on a substrate a film of a photo-alignment film material containing two or more polymers and a solvent; (2) pre-baking the film to evaporate the solvent; (3) post-baking the pre-baked film gradually at multiple temperatures from a low temperature to a high temperature; and (4) irradiating the post-baked film with polarized light, at least one of the two or more polymers being a photo-reactive polymer containing a photo-functional group in a side chain.