公开(公告)号：US09671650B2

公开(公告)日：2017-06-06

申请号：US15178684

申请日：2016-06-10

Applicant: Sharp Kabushiki Kaisha

Inventor： Isamu Miyake ,  Koichi Miyachi ,  Yuko Teraoka

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

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：US10770486B2

公开(公告)日：2020-09-08

申请号：US16339415

申请日：2017-10-02

Applicant: Sharp Kabushiki Kaisha

Inventor： Takashi Katayama ,  Isamu Miyake ,  Akira Hirai ,  Kei Shinada

IPC: H01L27/12 ,  H01L21/285 ,  H01L23/66 ,  G02F1/1337 ,  C09K19/56 ,  H01Q3/34

Abstract: A method of producing a liquid crystal cell includes: a thin-film forming step of forming, on a surface of one electrode-attached substrates including a TFT substrate and a slot substrate, the TFT substrate including a first dielectric substrate, TFTs, and patch electrodes electrically connected to the TFTs, the slot substrate including a second dielectric substrate and a slot electrode supported on the second dielectric substrate and having slots, a thin film so as to cover the patch electrodes and/or the slot electrode; and a light irradiating step of irradiating the thin film with light including p-polarized light to provide the thin film with alignment-regulating capability of aligning liquid crystal molecules to thereby obtain an alignment film. The thin film includes a polymer including a photoreactive functional group and exhibiting the alignment-regulating capability of the thin film in a direction orthogonal to a polarization axis of the p-polarized light.

公开(公告)号：US10197829B2

公开(公告)日：2019-02-05

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: G02F1/1333 ,  G02F1/133 ,  C09K19/54 ,  C08G73/10 ,  G02F1/1337 ,  G02F1/1335 ,  C08F32/00 ,  C09K19/30 ,  C08F222/10 ,  C09K19/04 ,  C09K19/12

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：US09810950B2

公开(公告)日：2017-11-07

申请号：US15329660

申请日：2015-07-23

Applicant: Sharp Kabushiki Kaisha

Inventor： Hiroaki Asagi ,  Isamu Miyake ,  Akira Hirai

IPC: G02F1/1337

CPC classification number: G02F1/133788 ,  G02F2001/133397 ,  G02F2001/133738 ,  G02F2001/133749

Abstract: The present invention provides a method for producing a liquid crystal display device which can produce a liquid crystal display device with favorable voltage holding ratio reliability and reduced image sticking. The method is for producing a liquid crystal display device, which is a horizontal alignment-mode liquid crystal display device including a drive substrate provided with paired electrodes and a counter substrate, the method including: an application step of applying an alignment film material to the surface of each of the drive substrate and the counter substrate; a photo-alignment treatment step of irradiating the applied alignment film material with light; a post-baking step of baking the alignment film material having been subjected to the photo-alignment treatment to form an alignment film on the surface of each of the drive substrate and the counter substrate; and an additional irradiation step of irradiating the alignment films with light, the alignment film material containing a polymer with a (meth)acrylic backbone and a photo-functional group that undergoes a dimerization or cross-linking reaction by photo-irradiation, the additional irradiation step irradiating the alignment film formed on the surface of the counter substrate with an irradiation dose higher than the irradiation dose for the alignment film formed on the surface of the drive substrate.

公开(公告)号：US09759949B2

公开(公告)日：2017-09-12

申请号：US15202603

申请日：2016-07-06

Applicant: Sharp Kabushiki Kaisha

Inventor： Isamu Miyake ,  Koichi Miyachi

IPC: G02F1/1337 ,  G02F1/1339 ,  G02F1/1343

CPC classification number: G02F1/133711 ,  G02F1/1337 ,  G02F1/133788 ,  G02F1/13394 ,  G02F1/134363 ,  G02F2001/133738 ,  G02F2001/134372

Abstract: The present invention provides a liquid crystal display panel and a liquid crystal display device having excellent display quality, with reduced string-like defects that occur in display pixels. The liquid crystal display panel of the present invention includes multiple spacers between a pair of substrates, wherein the spacers are arranged such that an inter-spacer distance between adjacent spacers in a longitudinal direction is different from an inter-spacer distance between adjacent spacers in a transverse direction, and an angle formed between a line connecting the spacers with a shorter inter-spacer distance and an alignment direction of liquid crystal molecules at a voltage lower than a threshold voltage in the liquid crystal layer is 20° or smaller.

公开(公告)号：US09488869B2

公开(公告)日：2016-11-08

申请号：US14429860

申请日：2013-09-09

Applicant: Sharp Kabushiki Kaisha

Inventor： Akira Hirai ,  Hiroaki Asagi ,  Isamu Miyake

IPC: G02F1/1337 ,  G02F1/1362 ,  G02F1/1339

CPC classification number: G02F1/133788 ,  G02F1/133711 ,  G02F1/1339 ,  G02F1/1362 ,  G02F2001/133397 ,  G02F2001/133715

Abstract: The present invention provides a liquid crystal display device that sufficiently reduces image sticking, by forming a polymer layer with stable alignment control appropriately. In a method for manufacturing the liquid crystal display device of the present invention, base film forming conditions are different between the step of forming a base film on a substrate including an active element and the step of forming a base film on a substrate different from the substrate including an active element.

Abstract translation: 本发明提供了通过适当地形成具有稳定的取向控制的聚合物层，可充分降低图像残留的液晶显示装置。 在本发明的液晶显示装置的制造方法中，在含有有源元件的基板上形成基膜的步骤与在不同于基板的基板上形成基膜的工序之间，基膜形成条件不同 衬底包括有源元件。

公开(公告)号：US20150234237A1

公开(公告)日：2015-08-20

申请号：US14429860

申请日：2013-09-09

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Akira Hirai ,  Hiroaki Asagi ,  Isamu Miyake

IPC: G02F1/1337 ,  G02F1/1339 ,  G02F1/1362

CPC classification number: G02F1/133788 ,  G02F1/133711 ,  G02F1/1339 ,  G02F1/1362 ,  G02F2001/133397 ,  G02F2001/133715

Abstract: The present invention provides a liquid crystal display device that sufficiently reduces image sticking, by forming a polymer layer with stable alignment control appropriately. In a method for manufacturing the liquid crystal display device of the present invention, base film forming conditions are different between the step of forming a base film on a substrate including an active element and the step of forming a base film on a substrate different from the substrate including an active element.

Abstract translation: 本发明提供了通过适当地形成具有稳定的取向控制的聚合物层，可充分降低图像残留的液晶显示装置。 在本发明的液晶显示装置的制造方法中，在含有有源元件的基板上形成基膜的步骤与在不同于基板的基板上形成基膜的工序之间，基膜形成条件不同 衬底包括有源元件。

公开(公告)号：US11435609B2

公开(公告)日：2022-09-06

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: G02F1/1333 ,  G02F1/133 ,  C09K19/54 ,  C08G73/10 ,  C08F32/00 ,  C09K19/30 ,  G02F1/1337 ,  G02F1/1335 ,  C09K19/04 ,  C09K19/12 ,  C08F222/10

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：US11128044B2

公开(公告)日：2021-09-21

申请号：US16317713

申请日：2017-07-11

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Hiroaki Asagi ,  Isamu Miyake

IPC: H01Q3/44 ,  G02F1/1337 ,  G02F1/1341 ,  G02F1/1368 ,  H01Q3/34 ,  H01Q13/22 ,  H01Q21/06

Abstract: A scanning antenna 1000 according to the present invention is a scanning antenna 1000 in which antenna units U are arranged, and includes a thin film transistor (TFT) substrate 101 that includes a first dielectric substrate 1, TFTs 10 and patch electrodes 15 supported by the first dielectric substrate 1, and a first alignment film M1 disposed so as to cover the patch electrodes 15 and other elements, a slot substrate 201 that includes a second dielectric substrate 51, a slot electrode 55 supported by the second dielectric substrate 51 and including slots 57, and a second alignment film M2 disposed so as to cover the slot electrode 55, a liquid crystal layer LC that is interposed between the TFT substrate 101 and the slot substrate 201 of which the alignment films M1 and M2 face each other, and a reflective conductive plate 65 that is disposed so as to face an opposite surface 51b of the second dielectric substrate 51 with a dielectric layer 54 interposed therebetween. The first alignment film M1 and the second alignment film M2 are acrylic alignment films containing an acrylic polymer.

公开(公告)号：US10921623B2

公开(公告)日：2021-02-16

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: G02F1/1333 ,  G02F1/133 ,  C09K19/54 ,  C08G73/10 ,  C08F32/00 ,  C09K19/30 ,  G02F1/1337 ,  G02F1/1335 ,  C09K19/04 ,  C09K19/12 ,  C08F222/10

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.