Patent application number | Description | Published |
20080290792 | LIGHT EMITTING MATERIAL AND ORGANIC LIGHT-EMITTING DEVICE - A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices. | 11-27-2008 |
20080290793 | LIGHT EMITTING MATERIAL AND ORGANIC LIGHT-EMITTING DEVICE - A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices. | 11-27-2008 |
20090091920 | LIGHT GUIDE MEMBER, FLAT LIGHT SOURCE DEVICE, AND DISPLAY DEVICE - A light guide member, a flat light source device and a display device using the light guide member, by which a white light having a high color rendering property can be obtained without using luminescent devices of a plurality of colors are provided. | 04-09-2009 |
20090129058 | LIGHT GUIDE MEMBER, PLANAR LIGHT SOURCE DEVICE PROVIDED WITH THE LIGHT GUIDE MEMBER, AND DISPLAY APPARATUS USING THE PLANAR LIGHT SOURCE DEVICE - A light guide member laminated on the upper face of a luminous device mounting substrate on which a luminous device is mounted and which is for diffusing and guiding upward light emitted from the luminous device. The light guide member includes a light reflecting portion formed on the bottom face of the light guide member in an area other than an area near the luminous device, and a section in which a light reflecting portion is not formed on the bottom face of the light guide member at a position near the luminous device. Also disclosed is a planar light source device provided with the light guide member, and a display apparatus using the planar light source device. | 05-21-2009 |
20090244885 | REFLECTOR FRAME, FLAT LIGHT SOURCE DEVICE PROVIDED WITH THE REFLECTOR FRAME, AND DISPLAY DEVICE USING THE FLAT LIGHT SOURCE DEVICE - A reflector frame, which is disposed on a light-emitting device mounting substrate on which a plurality of light-emitting devices is disposed in an array pattern, is characterized by comprising a plurality of opening portions corresponding to the disposed positions of the light-emitting devices. | 10-01-2009 |