The invention provides a liquid crystal display device, as well as a polarizer and a protective film suitable for the liquid crystal display device. The liquid crystal display device comprises a backlight light source, two polarizers, and a liquid crystal cell disposed between the two polarizers; the backlight light source being a white light-emitting diode light source; each of the two polarizers comprising a polarizing film and protective films laminated on both sides of the polarizing film; at least one of the protective films being a polyester film having an adhesion-facilitating layer; the polyester film having a retardation of 3,000 to 30,000 nm; and the adhesion-facilitating layer comprising a polyester resin (A) and a polyvinyl alcohol resin (B).

Liquid crystal display device, polarizing plate, and polarizer protection film

A cellulose acylate film, containing an acyl-modified compound of a reduction product of a ketone compound-formaldehyde polymer, a polarizing plate containing the film as transparent protective film, and a liquid crystal display device having the polarizing plate.

Cellulose acylate film, polarizing plate and liquid crystal display device

Described are polyester compositions comprising at least one polyester which comprises terephthalic acid residues, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and 1,4-cyclohexanedimethanol, wherein the inherent viscosity and the Tg of the polyester provides for certain polyester properties. The polyesters may be manufactured into articles such as fibers, films, bottles or sheets.

Polyester Compositions Containing Cyclobutanediol Having a Certain Combination of Inherent Viscosity and Moderate Glass Transition Temperature and Articles Made Therefrom

Described as one aspect of the invention are polyester compositions containing: (I) at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising: (i) 1 to 99 mole % of 2,2,4,4-tetramethyl-1,3- cyclobutanediol residues; and (ii) 1 to 99 mole % of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %.

Polyester compositions which comprise cyclobutanediol and certain thermal stabilizers, and/or reaction products thereof

Described are film(s) and/or sheet(s) comprising polyesters comprising (a) a dicarboxylic acid component having terephthalic acid residues; optionally, aromatic dicarboxylic acid residues or aliphatic dicarboxylic residues; 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and 1,4-cyclohexanedimethanol residues.

Film(s) and/or sheet(s) comprising polyester compositions which comprise cyclobutanediol and have a certain combination of inherent viscosity and moderate glass transition temperature

A cellulose ester film comprising a compound represented by Formula (1): Formula (1) B-(G-A)n-G-B, wherein B represents a benzene monocarboxylic acid residue; G represents an alkylene glycol residue having 2-12 carbon atoms, an aryl glycol residue having 6-12 carbon atoms, or an oxyalkylene glycol residue having 4-12 carbon atoms; A represents an alkylene dicarboxylic acid residue having 4-12 carbon atoms or an aryldicarboxylic acid residue having 6-12 carbon atoms; and n represents an integer of 1 or more.

Cellulose ester film, polarizing plate and liquid crystal display

A retardation film containing (a) at least one cellulose derivative selected from the group consisting of methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, cyanoethyl cellulose, triacetyl cellulose, diacetyl cellulose, cellulose acetate propionate, cellulose acetate butyrate, cellulose acetate phthalate, cellulose acetate trimellitate and cellulose nitrate, wherein the cellulose derivative has a total acyl group substitution degree of 20 to 28; and (b) an esterified compound in which all or a part of the OH groups in a compound (A) or in a compound (B) are esterified by at least one aromatic monocarbolyxic acid, wherein the compound (A) comprises one of a furanose structure and a pyranose structure, and the compound (B) comprises two to twelve of at least one of a furanose structure and a pyranose structure, which are bonded in the compound (B)

Retardation film, polarizing plate and liquid crystal display device

Disclosed is a retardation film which is improved in display quality by suppressing variation in the retardation value due to moisture that was a problem involved in the conventional cellulose retardation films. Also disclosed are a polarizing plate and a liquid crystal display. The retardation film is characterized by containing a cellulose derivative and an esterified compound which is obtained by esterifying a part or all of the OH groups in a compound (A) having one furanose structure or pyranose structure or in a compound (B) wherein not less than 2 but not more than 12 of at least either of the furanose structures or the pyranose structures are bonded.

Retardation film, polarizing plate and liquid crystal display

A polarizing plate protective film comprising a cellulose ester, and a saccharide ester compound in which all or a part of OH groups in Compound (A) or in Compound (B) are esterified, wherein Compound (A) consists of one of a furanose structure and a pyranose structure, and Compound (B) consists of two to twelve of at least one type of a furanose structure and a pyranose structure which are bonded in Compound (B); wherein the polarizing plate protective film exhibits Ro of 0-10 nm and Rt of −30 to +20 nm.

Polarizing plate protective film, polarizing plate and liquid crystal display device

Disclosed is a polarizing plate protection film of a cellulose ester, which exhibits high retardation stability even when left in a high-temperature, high-humidity environment for a long time Also disclosed are a polarizing plate having excellent view angle stability by using such a protection film, and a liquid crystal display The polarizing plate protection film is characterized by containing a cellulose ester and a compound obtained by esterifying a part or all of OH groups in a compound (A) having one furanose structure or pyranose structure, or a compound (B) wherein not less than 2 but not more than 12 of at least one of furanose structures and pyranose structures are bonded together The polarizing plate protection film is further characterized in that the in-plate retardation Ro is not less than 0 nm but not more tha 10nm, and the thickness-direction retardation Rt is not less than -30 nm but not more than +20 nm

Minori Tamagawa

Papers

Cellulose ester film, polarizing plate and liquid crystal display

Retardation film, polarizing plate and liquid crystal display device

Retardation film, polarizing plate and liquid crystal display

Polarizing plate protective film, polarizing plate and liquid crystal display device

Polarizing plate protection film, polarizing plate and liquid crystal display