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1. WO2012063936 - LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE

Publication Number WO/2012/063936
Publication Date 18.05.2012
International Application No. PCT/JP2011/076057
International Filing Date 11.11.2011
IPC
G02F 1/1337 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
CPC
G02F 1/133753
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
133753with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
G02F 1/133788
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
13378by treatment of the surface, e.g. embossing, rubbing, light irradiation
133788by light irradiation, e.g. linearly polarised light photo-polymerisation
G02F 2001/133757
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
133753with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
133757with different alignment orientations
G02F 2001/13712
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
137characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
13712the LC having negative dielectric anisotropy
Applicants
  • シャープ株式会社 Sharp Kabushiki Kaisha [JP]/[JP] (AllExceptUS)
  • 野間 健史 NOMA Takeshi (UsOnly)
  • 水▲崎▼ 真伸 MIZUSAKI Masanobu (UsOnly)
  • 仲西 洋平 NAKANISHI Youhei (UsOnly)
Inventors
  • 野間 健史 NOMA Takeshi
  • 水▲崎▼ 真伸 MIZUSAKI Masanobu
  • 仲西 洋平 NAKANISHI Youhei
Agents
  • 特許業務法人 安富国際特許事務所 YASUTOMI & Associates
Priority Data
2010-25321111.11.2010JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE
(FR) DISPOSITIF D'AFFICHAGE À CRISTAUX LIQUIDES ET PROCÉDÉ DE FABRICATION D'UN DISPOSITIF D'AFFICHAGE À CRISTAUX LIQUIDES
(JA) 液晶表示装置、及び、液晶表示装置の製造方法
Abstract
(EN)
The present invention provides a liquid crystal display device capable of suppressing degradation of the display characteristics such as a decrease in the aperture ratio and a decrease in the contrast ratio, and capable of suppressing the white spot phenomenon. One aspect of the present invention is a liquid crystal display device equipped with a pair of substrates and a liquid crystal layer sandwiched between said pair of substrates, wherein the aforementioned liquid crystal layer has a negative dielectric constant anisotropy, and at least one substrate of the aforementioned pair of substrates has an electrode, an orientation film that orients the adjacent liquid crystal molecules vertically, and a polymer layer that is formed by one or more types of bifunctional monomers on a portion of the main face of the aforementioned orientation film on the liquid crystal layer side, and that controls the orientation of the adjacent liquid crystal molecules. In addition, within the pixels there exists a first orientation region, wherein the aforementioned orientation film and the liquid crystal molecules are in contact, and a second orientation region, wherein the aforementioned polymer layer and the liquid crystal molecules are in contact, with the aforementioned first orientation region and the aforementioned second orientation region having different threshold voltages.
(FR)
La présente invention prévoit un dispositif d'affichage à cristaux liquides qui permet de supprimer des dégradations des caractéristiques d'affichage comme la diminution du rapport d'ouverture et la diminution du rapport de contraste, et qui permet de supprimer le phénomène de la tache blanche. Un premier aspect de la présente invention concerne un dispositif d'affichage à cristaux liquides équipé de deux substrats et d'une couche de cristaux liquides prise en sandwich entre lesdits deux substrats. La couche de cristaux liquides susmentionnée présente une anisotropie de constante diélectrique négative, et au moins un substrat des deux substrats susmentionnés comporte une électrode, un film d'orientation qui oriente les molécules de cristaux liquides adjacentes verticalement, et une couche polymère qui est formée d'un ou plusieurs types monomères bifonctionnels sur une partie de la face principale du film d'orientation susmentionné côté couche de cristaux liquides, et qui commande l'orientation des molécules de cristaux liquides adjacentes. En outre, il existe dans les pixels une première région d'orientation dans laquelle le film d'orientation susmentionné et les molécules de cristaux liquides sont en contact, et une seconde région d'orientation dans laquelle la couche polymère susmentionnée et les molécules de cristaux liquides sont en contact, la première région d'orientation susmentionnée et la seconde région d'orientation susmentionnée ayant des tensions seuil différentes.
(JA)
本発明は、開口率の低下、コントラスト比の低下等の表示特性の悪化を抑制しつつ、白抜け現象が発生することを抑制できる液晶表示装置を提供する。本発明の一側面は、一対の基板と、該一対の基板間に挟持された液晶層とを備える液晶表示装置であって、前記液晶層は、負の誘電率異方性を有し、前記一対の基板のうち少なくとも一方は、電極と、近接する液晶分子を垂直に配向制御する配向膜と、少なくとも1種類の2官能モノマーの重合によって、前記配向膜の液晶層側の主面の一部に形成され、近接する液晶分子を配向制御するポリマー層とを有し、前記配向膜と液晶分子とが接する第1の配向領域と、前記ポリマー層と液晶分子とが接する第2の配向領域とを画素内に有し、前記第1の配向領域と前記第2の配向領域とは、閾値電圧が互いに異なる液晶表示装置である。
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