A wiring circuit board is supported on the back surface of a light-guide plate and the wiring circuit board is inclined in a predetermined direction relative to the panel surface of a liquid crystal panel or to an arrangement position of a holding case. As a result, a substrate terminal is also arranged at an inclined position in the predetermined direction. A connector is mounted on a circuit board. Connector terminals of the connector are elastically deformable at least in a direction contacti...

A light emitting device is provided that can effectively dissipate heat generated by high power operation and has superior workability in mounting and less positional displacement. The light emitting device includes a planar base substrate made of a metal, a package member bonded to a main surface side of the base substrate, and an insulating member and a conductive member which are provided at least partially between the base substrate and the package member, wherein the package member has open...

An optical unit, a method of manufacturing the same, a backlight assembly having the same and a display device have the same are provided. The optical unit includes a transparent body, a diffusion part and a luminance increasing part. The diffusion part is formed on or in the body to diffuse light. The luminance increasing part includes an embossing pattern formed on the body to increase a luminance of the diffused light when viewed on a plane.

A light-guiding device having a coupling-in surface (46) for coupling-in light radiation substantially in a first main direction (41) perpendicular to said coupling-in surface (26;46), and having a coupling-out surface (47,48,49) for coupling-out light radiation substantially in a second main direction (42) perpendicular to said coupling-out surface. The coupling-out surface has other dimensions than the coupling-in surface (46). The device comprises a number of plate-like light-guiding members ...

Direct backlight modules using diffraction optical elements are provided. A direct backlight module includes a light source and a diffraction optical element, wherein the diffraction optical element is disposed above the light source. By properly arranging the phase function, the diffraction optical element can substantially modulate the wavefront of the light emitted from the light source and control light distribution as well as light direction.

A light guide mechanism includes a surface member, a bottom member, a connecting member and a light source. The connecting member is used to connect the surface member and the bottom member. The bottom member has a first side and a second side, and the light source faces the first side and is separated from the first side by a distance of 11 mm.about.15 mm. The light source is also separated from the top surface by a distance of 10 mm.about.15 mm. The first side is covered by a diffusion materia...

A light guide device (60) and a backlight module using the same. The light guide device includes: an incident surface (61); an emitting surface (64) adjacent to the incident surface; a reflecting surface (62) opposited to the emitting surface; a plurality of first V-shaped structures (644) formed on the emitting surface; and a plurality of second V-shaped structures (622) formed on the reflecting surface and perpendicular to the first V-shaped structures, wherein respective heigths of the second...

Optical waveguide systems and methods are described. In one aspect, a display system includes a planar acoustic cavity having a fundamental resonant acoustic mode. The acoustic cavity includes an array of optical waveguides and an array of acoustic transducers. Each of the optical waveguides includes a respective cladding surrounding a liquid-filled core. The array of acoustic transducers is operable to generate acoustic waves that propagate in the acoustic cavity across the cores of the optical...

A backlighting device includes a light guide plate having a first side and a second side opposite to the first side, and a point light source to generate light incident on the first side of the light guide plate. The light guide plate has a plurality of longitudinal diffraction microstructures which are arranged and oriented according to the location of the point light source. The microstructures are varied gradually at least in size, position, density, or shape relative to the location of the p...

The display device (1) comprises picture elements (5) arranged in substantially parallel lines (6) on a display panel (2), and selection means (3) for controlling the decoupling of light from an optical waveguide plate at the picture elements. The selection means (3) are arranged for multiline addressing of the picture elements (5). For displaying gray scales, image information (4) is decomposed into a number of subfields (13) which are displayed. The time efficiency of the addressing of picture...