Dai Nippon Printing Co., Ltd.

Hiroshi Yamamoto

Masahiro Goto

Hiroshi Sekiguchi

Hiroshi Yamada

Yasuki Suzuura

Atsuo Tsuzuki

Takakazu Goto

Hideki Arao

Kazuyuki Takasawa

Koujiro Ookawa

Katsutoshi Konno

Daijiro Kodama

Keiji Kashima

Koji Otsuka

Masahisa Yamaguchi

Wataru Tokuhara

Eiji Asano

Akiko Tomita

Junichi Sawanobori

Akiko Goto

A light guide plate has a light exit surface, a back surface opposed to the light exit surface, and a light entrance surface consisting of at least part of a side surface. The light guide plate also has a body portion, and a light exit-side layer formed from an ionizing radiation curable resin. The light exit-side layer includes an optical element portion which defines the light exit surface. The optical element portion includes unit shaped elements arranged in one direction intersecting a light guide direction, each unit shaped element extending linearly in a direction intersecting the one direction.

Light guide plate, method for producing light guide plate, surface light source device, and liquid crystal display device

A light guide plate includes a body portion, and a plurality of unit shaped elements defining a light exit surface and arranged on one-side surface of the body portion side by side in an arrangement direction intersecting a light guide direction. Each unit shaped element extends in a direction intersecting the arrangement direction. A light exit surface angle &#x3b8;a, which is the angle of the contour of each unit shaped element with respect to the one-side surface, is more than 10&#xb0; and not more than 30&#xb0; in a zone of the contour of each unit shaped element, the width of the zone along the arrangement direction being not less than 35% and not more than 70% of the full width of the unit shaped element.

Light guide plate, surface light source device, and display device

An optical module includes a polarizing plate and a light emitter disposed in a position facing the polarizing plate. The polarizing plate includes a polarizer and a protective film joined to the polarizer. The protective film has a light control function that changes the traveling direction of light. The light emitter is disposed in a position directly facing the protective film of the polarizing plate.

Optical module and display device

A light guide plate includes a body portion, first unit optical elements extending on the body portion in the light guide direction, and second unit optical elements disposed in between the first unit optical elements on the body portion. The width of each first unit optical element gradually decreases from that at the center to that at each end in the light guide direction. The ratio of the height to the width in each first unit optical element at the center is higher than the ratio of the height to the width in each second unit optical element.

Light guide plate with tapering unit optical elements

An optical sheet is incorporated in a direct type surface light source device including a light source and is configured to allow light emitted from the light source to exit after changing a travel direction of the light. The optical sheet has a light exiting side lens part including unit lenses juxtaposed to one another and each unit lens is convex toward a light exiting side. A light scattering layer, configured to scatter the light, is provided to each unit lens. The light scattering layer extends along a light exiting side surface of each convex unit lens and constitutes the light exiting side surface of the unit lens. A thickness of the light scattering layer around an apex portion of each unit lens is greater than the thickness of the light scattering layer around each end portion of the unit lens.

Optical sheet, surface light source device, and transmission display device

A surface light source device has a light emitting surface and includes a light guide plate having a light exit surface and a pair of light entrance surfaces. When the angular distribution of luminance in a plane parallel to a first direction is measured on the light emitting surface at varying positions along the first direction, the peak angle &#x3b8;c in the angular distribution of luminance at a center position Pc in the first direction lies between the peak angle &#x3b8;a in the angular distribution of luminance at an end position on one side in the first direction and the peak angle &#x3b8;b in the angular distribution of luminance at an end position on the other side in the first direction.

Surface light source device, liquid crystal display device and optical member

A protective sheet for a solar battery module comprises a weather-resistant sheet () of, for example, a fluorocarbon resin, and a deposited inorganic oxide thin film () formed on one of the surfaces of the weather-resistant sheet (). A surface-treated layer () is formed in the weather-resistant sheet () to enhance adhesion between the weather-resistant sheet () and the deposited inorganic oxide thin film ().

Protective sheet for solar battery module, method of fabricating the same and solar battery module

A dustfree filling and sealing apparatus is disclosed. A pair of wrapping clean filmswhich are free of cleaning are supplied from a pair of wrapping clean film supply means. Two outer layer filmsare peeled off and removed from the wrapping clean filmsby a pair of outer layer film peeling-off means. Thus, clean surfaces of inner layer filmsappear. The two inner layer filmsare conveyed by a pair of inner layer film conveying meansso that these films are opposed. An objectis inserted between the inner layer filmsby an object filling means. The inner layer filmsare sealed by an impulse seal head. The present invention also discloses a wrapping clean film producing method and a dustfree container.

Dustfree filling and sealing apparatus, dustfree container and wrapping clean film producing method

A protective sheet for a solar battery module comprises a weather-resistant sheet ( ) of, for example, a fluorocarbon resin, and a deposited inorganic oxide thin film ( ) formed on one of the surfaces of the weather-resistant sheet ( ). A surface-treated layer ( ) is formed in the weather-resistant sheet ( ) to enhance adhesion between the weather-resistant sheet ( ) and the deposited inorganic oxide thin film ( ).

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Kawaguchi, Japan

Hiroshi Yamamoto