PHOTOALIGNMENT FILM, METHOD FOR MANUFACTURING THE SAME AND LIQUID CRYSTAL DISPLAY COMPRISING THE SAME

• Main Authors: JUNG, JIN SOO, JEON, BAEK KYUN, LEE, HONG YEON, KANG, SUK HOON
• Format: Patent
• Language: English; Korean
• Published: 26.01.2016
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention provides a photoalignment film, a manufacturing method thereof, and a liquid crystal display panel including the same. Fibers made of a photoalignment material having optical anisotropy in one direction are stacked to form a fiber layer, with a major axis arranged in the one direction, and the fiber layer has a surface corrugated in accordance with a difference in a stacked height of the fibers. A side chain of a polymer is aligned in a certain direction, so the orientation of a liquid crystal is adjusted by chemical interaction between the side chain and a liquid crystal molecule. In addition, multiple grooves are formed regularly on a surface of the alignment film by rubbing, so the orientation of the liquid crystal is adjusted by mechanical interaction between the grooves and the liquid crystal. 본 발명은 일방향에 대해 광학 이방성을 가진 광배향 물질로 이루어진 섬유들이 장축이 상기 일방향으로 배열된 상태에서 적층되어 섬유층을 형성하고, 상기 섬유층은 상기 섬유들의 적층 높이 차이에 따른 굴곡진 표면을 가진 광배향막, 이의 제조방법 및 이를 포함하는 액정표시패널을 제공한다.