公开(公告)号：US10241364B2

公开(公告)日：2019-03-26

申请号：US15500614

申请日：2015-07-24

Applicant: Sharp Kabushiki Kaisha

Inventor： Yuichi Kawahira ,  Isamu Miyake

IPC: G02F1/1333 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/13363

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：US09864236B2

公开(公告)日：2018-01-09

申请号：US15585237

申请日：2017-05-03

Applicant: Sharp Kabushiki Kaisha

Inventor： Isamu Miyake ,  Koichi Miyachi ,  Yuko Teraoka

IPC: G02F1/1341 ,  G02F1/1337 ,  G02F1/1339 ,  C09K19/56 ,  C09K19/30

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.

公开(公告)号：US09817274B2

公开(公告)日：2017-11-14

申请号：US15608273

申请日：2017-05-30

Applicant: Sharp Kabushiki Kaisha

Inventor： Koichi Miyachi ,  Isamu Miyake

IPC: G02F1/1337 ,  G02F1/1368

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.

公开(公告)号：US09034567B2

公开(公告)日：2015-05-19

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: G03F7/20 ,  G03F7/26 ,  G02F1/1337

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：US11189914B2

公开(公告)日：2021-11-30

申请号：US16336215

申请日：2017-09-22

Applicant: Sharp Kabushiki Kaisha

Inventor： Kei Shinada ,  Isamu Miyake ,  Takashi Katayama

IPC: H01Q1/38 ,  H01Q19/10 ,  H01Q21/06 ,  C09K19/10 ,  C09K19/56 ,  H01L27/12 ,  H01Q13/22 ,  G02F1/1337 ,  H01Q3/34 ,  G02F1/13 ,  C09K19/18 ,  H01Q3/44 ,  C09K19/04 ,  H01L29/786

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：US11128043B2

公开(公告)日：2021-09-21

申请号：US16246835

申请日：2019-01-14

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Hiroaki Asagi ,  Isamu Miyake

IPC: H01Q3/44 ,  H01Q21/06 ,  H01Q13/10 ,  H01Q1/44 ,  H01L27/12 ,  H01Q3/34 ,  H01L27/13

Abstract: A liquid crystal cell including multiple antenna units includes a TFT board that includes a first dielectric substrate, TFTs on the first dielectric substrate, and patch electrodes electrically connected to the TFTs, a slot board that includes a second dielectric substrate and a slot electrode having slots on the second dielectric substrate, a conductive alignment film having conductivity on at least one of the patch electrodes and the slot electrode, and a liquid crystal layer disposed between the TFT board and the slot board with the patch electrodes and the slot electrode facing each other. The liquid crystal layer includes liquid crystal molecules that are horizontally aligned with respect to the TFT board and the slot board while no voltage is being applied across the patch electrodes and the slot electrode.

公开(公告)号：US11069977B2

公开(公告)日：2021-07-20

申请号：US16317795

申请日：2017-07-12

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Isamu Miyake

IPC: H01Q3/00 ,  H01Q3/44 ,  H01Q3/34 ,  H01Q13/22 ,  H01Q13/10 ,  G02F1/1337 ,  H01Q21/06 ,  H01Q15/14

Abstract: A liquid crystal alignment agent according to the present invention includes: an alignment film forming material; and an organic solvent. The organic solvent contains a compound which has at least two functional groups selected from the group consisting of a methylene group, a methyl group, an ether group, a ketone group, and a hydroxyl group, and does not contain a nitrogen atom.

公开(公告)号：US20200379282A1

公开(公告)日：2020-12-03

申请号：US16636784

申请日：2018-08-06

Applicant: V TECHNOLOGY CO., LTD. ,  SHARP KABUSHIKI KAISHA

Inventor： Yuji Yoshida ,  Satoshi Ikeda ,  Toshinari Arai ,  Isamu Miyake ,  Takashi Katayama ,  Akira Hirai

IPC: G02F1/13 ,  G02F1/1337 ,  G03F7/20

Abstract: A photo-aligning exposure device that performs a photo-aligning process by performing scanning exposure on an irradiated plane in one direction includes: a light source that emits scattering light toward the irradiated plane; an optical filter that selectively emits an ultraviolet ray out of the light emitted from the light source; and an irradiation angle restriction member that selectively emits light with which irradiation is diagonally performed with respect to the scanning direction out of the light emitted from the optical filter. The irradiation angle restriction member has a plurality of flat-plate-shaped light direction restriction plates slanted at a certain angle with respect to the irradiated plane and arrayed in parallel along the scanning direction at a predetermined distance.

公开(公告)号：US10756430B2

公开(公告)日：2020-08-25

申请号：US16255653

申请日：2019-01-23

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Hiroaki Asagi ,  Isamu Miyake

IPC: H01Q3/34 ,  H01L27/12 ,  C09K19/56 ,  H01Q1/38 ,  H01Q15/14

Abstract: A liquid crystal cell in which antenna units are arrayed includes a TFT substrate, a slot substrate, an alignment film, and a liquid crystal layer. The TFT substrate includes a first dielectric substrate, TFTs supported by the first dielectric substrate, and patch electrodes electrically connected to the TFTs. The slot substrate includes a second dielectric substrate and a slot electrode including slots supported by the second dielectric substrate. The alignment film is provided on a surface of at least either each of the patch electrodes or the slot electrode. The alignment film includes a metal oxide film at the foremost surface of the alignment film. The liquid crystal layer is sandwiched between the TFT substrate and the slot substrate and contains liquid crystal molecules that are aligned parallel to the TFT substrate and the slot substrate when no voltage is applied between the patch electrode and the slot electrode.

公开(公告)号：US10324337B2

公开(公告)日：2019-06-18

申请号：US15465867

申请日：2017-03-22

Applicant: Sharp Kabushiki Kaisha

Inventor： Isamu Miyake ,  Tomohiko Mori ,  Iichiroh Inoue

IPC: G02F1/1337 ,  G02F1/1343

Abstract: A liquid crystal display device according to the present invention has a display area that includes a plurality of pixels (Px). The display area is made up of n kinds of domains (where n is an integer that is equal to or greater than two and equal to or smaller than four). The directors of the n kinds of domains define mutually different alignment directions. If the domain structure of each pixel (Px) is defined by the kinds of the domains that form the pixel (Px), the number k of the kinds of the domains that form the pixel (Px), and the arrangement of the domains in the pixel (Px), the display area includes a pixel, of which k is less than n and of which the domain structure is different from the domain structures of adjacent pixels.