Fujifilm Corporation

Hiroyuki Kaihoko

Ryuta Takegami

Tatsuho Nomura

Yukito Saitoh

Yujiro Yanai

Makoto Ishiguro

Ayako Muramatsu

Ryuji Saneto

Junichi Hirakata

Tatsuya Iwasaki

A liquid crystal display includes: a first polarizer; a liquid crystal cell including a liquid crystal layer containing liquid crystal molecules horizontally aligned to a face of a substrate; and a second polarizer. The liquid crystal display further includes a first optical compensation film disposed between the first polarizer and the liquid crystal cell, an absorption axis of the first polarizer, an optical axis of the first optical compensation film, and an optical axis of the liquid crystal layer being parallel to each other in a view of the liquid crystal cell in a direction orthogonal to the face of the substrate of the liquid crystal cell. The optical axis of the liquid crystal layer of the liquid crystal cell and the optical axis of the first optical compensation film have a tilt angle from the face of the substrate of the liquid crystal cell in a same direction.

Liquid crystal display device

The invention relates to an optical compensation film for IPS or FFS-mode liquid crystal display devices, having the tilt angle &#x3b2;[&#xb0;] not equal to zero, &#x3b2;[&#xb0;] being defined as &#x3c6; giving the minimum value of retardation R[&#x3c6;] which is retardation measured for incident light coming in a direction tilted by &#x3c6;&#xb0; from a normal line relative to the film-plane, the direction being in a plane including the direction perpendicular to the in-plane slow axis thereof and the normal line; and having retardation along the thickness direction at a wavelength of 550 nm, Rth(550), not equal to zero.

Acryl-base polymer film, optical compensation film, and liquid-crystal display device having the same

An IPS or FFS-mode liquid-crystal display device includes an optical compensatory film having a first retardation region and a second retardation region adjacent to the first retardation region, wherein a slow axis of the first retardation region is parallel to a slow axis of the second retardation region, retardation in-plane at a wavelength of 550 nm, Re(550) of the second retardation region is equal to or less than 20 nm, and retardation along the thickness-direction at a wavelength of 550 nm, Rth(550) of the second retardation region is from 20 nm to 120 nm, the first retardation region includes a retardation layer containing a vertically-aligned discotic liquid-crystal compound, and Re thereof at a wavelength of 450 nm, 550 nm and 650 nm, Re(450), Re(550) and Re(650) satisfy Re(450)/Re(550) of from 1 to 1.13 and Re(650)/Re(550) of from 0.94 to 1.

IPS or FFS-mode liquid-crystal display device

A liquid crystal display device has at least a pair of transparent substrates, polymer-stabilized blue phase liquid crystal layer disposed therebetween, and a transparent film having an absolute value |Re| of in-plane retardation Re of 10 nm or smaller in the visible light region, having an absolute value |Rth| of thickness-wise retardation Rth of 30 nm or smaller in the visible light region, having an absolute value |Re(400)&#x2212;Re(700)| of difference between values of in-plane retardation Re at 400 nm and 700 nm of 10 nm or smaller, and having an absolute value |Rth(400)&#x2212;Rth(700)| of difference between values of thickness-wise retardation Rth at 400 nm and 700 nm of 35 nm or smaller.

Liquid crystal display device having polymer-stabilized blue phase liquid crystal layer and transparent films

Disclosed is an optical compensation film comprising an optically-anisotropic layer and at least one optically-isotropic layer adjacent to the optically-anisotropic layer and having a refractive index that differs from the mean refractive index of the optically-anisotropic layer.

Optical compensation film, polarizing plate, and liquid crystal display device

Provided is an optical filter having a light-transmitting region of transmitting light having a predetermined wavelength and a light-blocking region disposed adjacent to the light-transmitting region to block out the light, wherein the light-blocking region has an optical density gradation relative to light in the normal direction, from the contact point to the light-transmitting region along an in-plane direction, and the optical density is the smallest at the contact point to the light-transmitting region.

Optical filter, and liquid-crystal display device comprising it

A novel liquid crystal display device is disclosed. It comprises, at least, a pair of polarizing plates, and a liquid crystal cell, disposed between the pair of polarizing plates, comprising a pair of substrates opposed to each other, electrodes disposed on at least one of the pair of substrates, capable of forming an electric field including a component parallel to the pair of substrates, liquid crystal layer, of which alignment is controlled, disposed between the pair of substrates, a plurality of pixel regions respectively having first, second and third pixels, and a plurality of color filter layers, respectively having first, second and third color filter layers, each corresponding to the first, second and third pixel regions, wherein Rth is different between at least two of the first, second and third color filter layers.

Growing community of inventors

Kanagawa, Japan

Hiroyuki Kaihoko