Abstract: A light emitting diode comprising a light emitting diode element 20 mounted on a glass epoxy substrate 12, this light emitting diode element 20 being protected at its surface side by a resin seal member 33, in which: a light emitting diode element for blue luminescence, formed of gallium nitride type compound semiconductor is used as the above-mentioned light emitting diode element 20; and a fluorescent material containing layer 21 composed of a fluorescent material containing layer 21 composed of a fluorescent material dispersed into an adhesive is arranged on the back side of this light emitting diode element. On the back side of the light emitting diode element 20, blue luminescence is converted in wavelength to produce white luminescence of high intensity.

Abstract: A panel for lighting a display has a lighting panel made of a transparent plastic and having a rectangular shape in plan view. The lighting panel has a reflection surface and a discharge surface on opposite long sides and an incident surface on a short side of the lighting panel. A plurality of scalene prisms are formed on the reflection surface of the lighting panel. A flat plane is formed on the reflection surface, adjacent the incident surface. An equilateral prism is formed on the flat plane.

Abstract: A lighting panel device has a light source, a lighting panel receiving light from the light source at an end face, and a prism sheet provided above the lighting panel. The lighting panel has a bottom reflector face, and the prism sheet has a plurality of prisms arranged in a longitudinal direction of the prism sheet. Each of the prisms has a sectional shape of a triangle. A vertex of the triangle is between 30° and 25°.

Abstract: A plurality of light sources are provided at a front side of a lighting panel made of a transparent resin. The lighting panel has a light discharge side, and a reflection side opposite to the light discharge side. A plurality of refracting recesses are formed in the front side disposed to receive light emitted from the light source. The refracting recess has a sectional shape so as to cause the light to refract close to the front side in the lighting panel.

Abstract: A sheet light emitting apparatus, incuding a light guiding plate of a translucent material and having light receiving and light emitting surfaces, a light source disposed to face the light receiving surface, and a prism structure provided on the light receiving surface, the prism structure having plural kinds of prisms having different apex angles.

Abstract: An elastic connector integrated with an electrode on at least either a chip-type LED or a circuit board facing each other is sandwiched and compressed by the chip-type LED and the circuit board so as to provide an electric connection. The thus obtained integrated connector is thin and cost-effective while able to provide a secure conductivity between the electrode of the printed circuit board and the chip-type LED in a simple connection method, and a LED including the integrated connector also is provided.

Abstract: A light emitting diode comprising a light emitting diode element 20 mounted on a glass epoxy substrate 12, this light emitting diode element 20 being protected at its surface side by a resin seal member 33, in which: a light emitting diode element for blue luminescence, formed of gallium nitride type compound semiconductor is used as the above-mentioned light emitting diode element 20; and a fluorescent material containing layer 21 composed of a fluorescent material containing layer 21 composed of a fluorescent material dispersed into an adhesive is arranged on the back side of this light emitting diode element. On the back side of the light emitting diode element 20, blue luminescence is converted in wavelength to produce white luminescence of high intensity.

Abstract: There is provided a lighting panel having rectangular both surfaces one of which is a reflection surface and the other is a discharge surface, an edge light provided at a corner of the lighting panel. A plurality of prisms are circularly formed on the reflection surface of the lighting panel. Each of the prisms has a vertical angle &thgr; comprising a first inclination angle &thgr;1 on the edge light side and a second inclination angle &thgr;2 opposite to the first inclination angle &thgr;1. The first inclination angle &thgr;1 is set to 89.5°˜60°, and there is a following relationship between the first inclination angle &thgr;1 and the second inclination angle &thgr;2: &thgr;1(&thgr;1.1˜&thgr;1.n)>&thgr;2 &thgr;1.1≦&thgr;1.2≦ . . . &thgr;1.(m−1)≦&thgr;1.m . . . &thgr;1.(n−1)≦&thgr;1.

Abstract: A planar light source of this invention is formed with chamfered portions at an upper end of the light receiving side surface where the light receiving side surface and the light emitting surface of the light guide plate intersect and at a lower end of the light receiving side surface where the light receiving side surface and the reflection surface of the light guide plate intersect. The chamfered portions can make indistinguishable the bright lines, that may be produced during illumination, to prevent a dark-bright fringe pattern from showing up, thereby preventing a possible degradation of liquid crystal display quality.

Abstract: The planar light source of this invention comprises: a light guide plate made of a platelike, light-transmitting material formed with a reflection surface on a bottom side thereof, the reflection surface being formed by combining a plurality of kinds of reflection means; and an illuminating light source arranged opposite a light receiving side surface of the light guide plate; wherein the light guide plate has formed smooth a boundary on the reflection surface between the plurality of kinds of reflection means so as not to form any step between the adjoining reflection means. This construction prevents the formation of a dark-bright fringe pattern between the plurality of reflections means when the light source is illuminated.

Abstract: There is provided a lighting panel having rectangular both surfaces one of which is a reflection surface and the other is a discharge surface, an edge light provided at a corner of the lighting panel. A plurality of prisms are circularly formed on the reflection surface of the lighting panel. Each of the prisms has a vertical angle &thgr; comprising a first inclination angle &thgr;1 on the edge light side and a second inclination angle &thgr;2 opposite to the first inclination angle &thgr;1. There is a following relationship between the first inclination angle &thgr;1 and the second inclination angle &thgr;2 &thgr;1(=89.5°˜60°)>&thgr;2.

Abstract: An elastic connector integrated with an electrode on at least either a chip-type LED or a circuit board facing each other is sandwiched and compressed by the chip-type LED and the circuit board so as to provide an electric connection. The thus obtained integrated connector is thin and cost-effective while able to provide a secure conductivity between the electrode of the printed circuit board and the chip-type LED in a simple connection method, and a LED including the integrated connector also is provided.

Abstract: A lighting device has a light source for emitting lighting light for illuminating a display, and a light guide plate for changing the direction of the lighting light to the display. A polarization separation film is provided for separating polarization of the lighting light into P-polarized light and S-polarized light for illuminating the display.

Abstract: A panel for lighting a display has a lighting panel made of a transparent plastic and having a rectangular shape in plan view. The lighting panel has a reflection surface and a discharge surface on opposite long sides and an incident surface on a short side of the lighting panel. A plurality of scalene prisms are formed on the reflection surface of the lighting panel. A flat plane is formed on the reflection surface, adjacent the incident surface. An equilateral prism is formed on the flat plane.

Abstract: There is provided a lighting panel having rectangular both surfaces one of which is a reflection surface and the other is a discharge surface, an edge light provided at a corner of the lighting panel. A plurality of prisms are circularly formed on the reflection surface of the lighting panel. Each of the prisms has a vertical angle &thgr; comprising a first inclination angle &thgr;1 on the edge light side and a second inclination angle &thgr;2 opposite to the first inclination angle &thgr;1. There is a following relationship between the first inclination angle &thgr;1 and the second inclination angle &thgr;2.

Abstract: There is provided a lighting panel having rectangular both surfaces one of which is a reflection surface and the other is a discharge surface, an edge light provided at a corner of the lighting panel. A plurality of prisms are circularly formed on the reflection surface of the lighting panel. Each of the prisms has a vertical angle &thgr; comprising a first inclination angle &thgr;1 on the edge light side and a second inclination angle &thgr;2 opposite to the first inclination angle &thgr;1. The first inclination angle &thgr;1 is set to 89.

Abstract: A plurality of light sources are provided at a front side of a lighting panel made of a transparent resin. The lighting panel has a light discharge side, and a reflection side opposite to the light discharge side. A plurality of refracting recesses are formed in the front side disposed to receive light emitted from the light source. The refracting recess has a sectional shape so as to cause the light to refract close to the front side in the lighting panel.

Abstract: A lighting panel device has a light source, a lighting panel receiving light from the light source at an end face, and a prism sheet provided above the lighting panel. The lighting panel has a bottom reflector face, and the prism sheet has a plurality of prisms arranged in a longitudinal direction of the prism sheet. Each of the prisms has a sectional shape of a triangle. A vertex of the triangle is between 30° and 25°.

Abstract: A light emitting diode 21 in which a through hole 25 is provided in a glass epoxy substrate 22 which extends from the upper surface 26a to the lower surface 26b thereof, a transparent resin section 27 is used to fill the through hole 25, a light emitting diode element 29 made of a gallium nitride based compound semiconductor with a transparent element substrate of sapphire glass 30 is fixed on top of the transparent resin section 27 using a transparent adhesive 37, and light blocking electrodes 33, 34 are provided on the upper surface of the light emitting diode element 29, and light emitted from the light emitting diode element 29 passes through the transparent resin section 27 and is guided out through a bottom surface 26b of the glass epoxy substrate 22.