摘要:
A cellulose ester film has: a ratio of a sound velocity in a width direction to a sound velocity in a longitudinal direction of from 0.9 to 1.1; a moist heat dimensional change rate in the width direction of from −0.2% to 0.2%, the moist heat dimensional change being one after the cellulose ester film is left standing at 60° C. and 90% RH for 24 hours; and a humidity dimensional change rate in the width direction of 0.38% or less.
摘要:
An optical film is provided and has retardations satisfying relations (1) to (3): 0≦Re(550)≦10; (1) −25≦Rth(550)≦25; and (2) |I|+|II|+|III|+|IV|>0.5 (nm), (3) with definitions:I=Re(450)-Re(550);II=Re(650)-Re(550);III=Rth(450)-Rth(550); andIV=Rth(650)-Rth(550),wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.
摘要翻译:提供了一种光学膜,并具有满足关系式(1)至(3)的延迟:0≦̸ Re(550)≦̸ 10; (1)-25≦̸ Rth(550)≦̸ 25; 和(2)| I | + | II | + | III | + | IV |> 0.5(nm),(3)具有定义:I = Re(450)-Re(550) II = Re(650)-Re(550); III = Rth(450)-Rth(550); 并且IV = Rth(650)-Rth(550),其中Re(450),Re(550)和Re(650)分别是用波长为450,550和650nm的光测量的面内延迟; 和Rth(450),Rth(550)和Rth(650)分别是在450,550和650nm的波长的光下测量的光学膜的厚度方向的延迟。
摘要:
An optical film having a core layer containing a (meth)acrylic resin having a lactone ring structure, and an outer layer containing a cellulose acetate with a thickness of from more than 3 μm to 20 μm on at least one side of the core layer is excellent in nonbrittleness and adhesiveness to a polarizing element.
摘要:
A solid-state imaging device includes: a plurality of photoelectric conversion units disposed on an imaging surface of a substrate; and a plurality of inner-layer lenses that are disposed in correspondence with each of the plurality of photoelectric conversion units on the upper side of the photoelectric conversion units and are formed in shapes protruding in directions toward the photoelectric conversion units, wherein each of the plurality of inner-layer lenses is formed to have different lens shapes in the center and in the periphery of the imaging surface.
摘要:
The invention relates to a cellulose ester film, comprising at least one cellulose ester that satisfies the following formulae, 2.2≦X1+X2≦2.55, 1.1≦X1 1, Rth(450)/Rth(550) 1, wherein X1 means a degree of substitution with an acetyl group in the cellulose ester; X2 means a degree of substitution with a propionyl group and/or a butyryl group in the cellulose ester; Re(λ) means retardation (nm) in plane of the film at a wavelength of λ (nm); and Rth(λ) means retardation (nm) along the thickness direction of the film at a wavelength of λ (nm).
摘要:
A liquid-crystal display device comprising a liquid-crystal cell comprising a liquid-crystal layer that aligns vertically to the substrate thereof in the black state, first and second polarizing elements that are disposed to sandwich the liquid-crystal cell therebetween so that their absorption axes are orthogonal to each other, a retardation film A and a retardation film B, wherein the retardation films A and B are equivalent to each other in terms of retardation in plane at a wavelength of 548 nm, Re(548), and retardation along thickness direction at a wavelength of 548 nm, Rth(548) thereof, but differ from each other in terms of the wavelength dispersion characteristics of retardation in plane Re and/or retardation along thickness direction Rth thereof in a visible light region, is disclosed.
摘要:
An optical film is provided and contains at least one of a polycarbonate copolymer and a blend containing the polycarbonate copolymer. The polycarbonate copolymer contains specific repeating units. The optical film satisfies the following formulae (1) to (4). 0.1
摘要:
A liquid crystal display comprising a first polarization film, a first retardation region, a second retardation region, a liquid crystal layer, a liquid crystal cell, and a second polarization film disposed in this order, liquid crystal molecules of the liquid crystal layer being aligned in parallel with surfaces of the substrates at the time of dark state, wherein Re of the first retardation region is 70 nm to 330 nm, Nz value of the first retardation region is greater than 0 and less than 0.4, Re of the second retardation region is equal to 50 nm or less and an optical axis is simultaneously not included in the in-plane of the second retardation region, Rth of the second retardation region is 10 nm to 140 nm, a slow axis of the first retardation region is orthogonal to a transmissive axis of the first polarization film that is simultaneously in parallel with a slow axis direction of the liquid crystal molecules at the time of dark state, each of the first and second polarization films has at least a protective film on a plane close to the liquid crystal layer, and the corresponding protective film is a cellulose acylate film which meets the formulae (I) and (II) below. 0≦Re(630)≦10, and, |Rth(630)|≦25 |Re(400)−Re(700)|≦10, and, |Rth(400)−Rth(700)|≦35
摘要:
All optical compensation polarizing plate comprising: a first transparent protective film; a polarizer; a second transparent protective film; and an optical compensation layer in this order, wherein at least one of the first and second transparent protective films is a cellulose acylate film having a retardation value in plane Re (nm) and a retardation value in film thickness direction Rth (nm) which fulfill the following formulae (I) and (II), and Nz and Re1 defined by the following formulae (III) and (IV), of the optical compensation layer fulfill the following formulae (V) and (VI): (I) |Re|≦10, (II) |Rth|≦25, (III) Nz=(nx1−nz1)/(nx1−ny1), (IV) Re1=(nx1−ny1)×d1, (V) 0.4≦Nz≦0.6 (VI) 100≦Re1≦350, wherein Re1 is a retardation value in plane (nm) at a wavelength of 590 nm; Nz is an Nz factor at a wavelength of 590 nm; nx1 is a refractive index along a slow axis in a film plane; ny1 is a refractive index along a direction perpendicular to the slow axis in a film plane; nz1 is a refractive index along a thickness direction of the film; and d1 is a thickness of the film (nm).
摘要:
A novel transparent film is disclosed. Re (λ) and Rth (λ) of the film defined by the following formulae (I) and (II) satisfy the following formulae (III) and (IV): Re (λ)=(nx−ny)×d, (I) Rth (λ)={(nx+ny)/2−nz}×d, (II) 0≦|Re(630)|≦50, (III) Rth (400)×Rth (700)≦0, and 0