Nitto-denko Corporation

Tatsuya Osuka

Hiroyuki Yoshimi

Kazutaka Hara

Seiji Umemoto

Minoru Miyatake

Tadayuki Kameyama

Takafumi Sakuramoto

Tatsuki Nagatsuka

Shinobu Nagano

Shouhei Maezawa

Yasuo Fujimura

Teppei Niinou

It is an object of the present invention to provide a liquid crystal display panel having a high contrast ratio. A liquid crystal panel according to an embodiment of the present invention includes: a liquid crystal cell; a first polarizing plate placed on a viewer side of the liquid crystal cell; and a second polarizing plate placed on an opposite side of the liquid crystal cell with respect to the viewer side. A light transmittance (T) of the second polarizing plate is larger than a light transmittance (T) of the first polarizing plate. Such a liquid crystal panel has a remarkably high contrast ratio and shows excellent display properties, compared to conventional liquid crystal panel.

Liquid crystal panel and liquid crystal display apparatus

A semi-transmissible reflection layer is formed on a light-transmissible polymer substrate uniaxially drawn to have uniaxial orientation characteristic to thereby form a semi-transmissible reflector.

Semi-transmissible reflector, semi-transmission type polarizer and liquid-crystal display device using the sames

A light guide plate comprises: an outgoing radiation plane; a bottom opposed to the outgoing radiation plane; and an incidence plane disposed between the outgoing radiation plane and the bottom; wherein projections or recesses are formed on the bottom along the progress direction of incident light at a regular interval, the projections or recesses have long-side and short-side faces, an projection area of the long-side face on the outgoing radiation plane is three times or more that of the short-side face on the outgoing radiation plane, the long-side face is a projection, the long-side face is placed on the incidence plane side in the case of projections, the long-side face is placed on a side opposed to the incidence plane in the case of recesses.

Light guide plate, surface light source device, polarized light source

A birefringent film in which molecules oriented in a direction parallel to the film plane and molecules oriented in the direction of the thickness of the film are present in a mixed state. Also, a process for producing the birefringent film, which comprises laminating a resin film on one or both sides thereof with a shrinkable film, thereby preparing a laminate, and then heat stretching the laminate, thereby performing stretching treatment of the resin film while imparting to the resin film the ability to shrink in the direction crossing the stretching direction. A retardation film is formed by using at least one birefringent film and has refractive indexes, n.sub.x and n.sub.y, in two directions parallel to the plate plane and crossing each other at right angles and a refractive index, n.sub.z, in the direction of the thickness of the plate, said refractive indexes n.sub.x, n.sub.y, and n.sub.z satisfying the following equation:

Birefringent film with n.sub.x &gt;n.sub.z &gt;n.sub.y, process for producing

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Osaka, Japan

Tatsuya Osuka