| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a low-profile surface light source which can guide a light irradiated from a light emitter on the light source to the side on a low-profile optical waveguide without any loss utilizing the low-profile optical waveguide shorter than the light emitter on the light source, and a liquid crystal display using this low-profile surface light source. <P>SOLUTION: The liquid crystal display is provided with a surface light source element 10 comprising at least one or more optical outgoing means and a thin plate-shaped optical waveguide 3, and at least one or more light sources 2 for incidence of a light into the side 3a on the optical waveguide 3, which is set to be shorter than a light emitter 2a on the light source 2 in height. In addition, the liquid crystal display incorporates the optical input 6 and optical output 7 which are provided between the light emitter 2a on the light source 2 and the side 3a on the optical waveguide 3, and are different in height respectively depending on the difference in height between both sections mentioned above, as well as a fiber light guide 5 which forms a space in its inside and guides a light incoming from the light emitter 2a on the light source 2 to the side 3a on the optical waveguide 3. <P>COPYRIGHT: (C)2007,JPO&INPIT |
