OPTICAL FILM AND LIQUID CRYSTAL DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide an optical film in which cutting processability and optical function maintainability in a high temperature atmosphere are compatible by providing a pressure sensitive adhesive layer having a specific value of a modulus at a specific ratio at a specific temperature on...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	YAMAOKA HISASHI, SATAKE MASAYUKI, MIYAUCHI KAZUHIKO, TANAKA YOSHIKAZU, OIZUMI SHINICHI, KOJIMA KATSUHIDE
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY 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 DYES FREQUENCY-CHANGING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-LINEAR OPTICS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PAINTS PERFORMING OPERATIONS PHYSICS POLISHES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING USE OF MATERIALS AS ADHESIVES
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an optical film in which cutting processability and optical function maintainability in a high temperature atmosphere are compatible by providing a pressure sensitive adhesive layer having a specific value of a modulus at a specific ratio at a specific temperature on one or both side surfaces of an optical film material. SOLUTION: An adhesive layer 3 having 2 to 6g/mm of 100% modulus at 90 deg.C and 3 to 7g/mm of 1000% modulus is provided on one side or both side surfaces of an optical film material 2. A protective film 1 is provided on an upper portion of the material 2, and a separator 4 is provided underneath a lower portion of the layer 3. Particularly acrylic polymer of the acrylic polymer has excellent transparency, weather resistance and heat resistance and uses one or more types of acrylic ester and methacrylic ester having a glass transition temperature of -10 deg.C or lower as monomer of a main component for developing suitable wettability and flexibility. At a viewpoint of preventiveness of stringiness or desizing residue of the adhesive layer at the time of cutting and processing the optical film, its weight-average molecular weight of 1,000,000 to 3,000,000 is particularly preferable.