| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid crystal display device with which back light illumination is possible adcording to need, usually with a bright reflection type, an inverter circuit is not needed and the selection of free light emitting colors is possible by arranging a diffusion plate having a light scattering function behind a liquid crystal panel and further, arranging an org. EL surface light emitting body. SOLUTION: The diffusion plate 2 having the light scattering function is arranged behind the liquid crystal panel 1 formed by holding liquid crystals 12 with two sheets of transparent substrates 11 formed with transparent electrodes. The org. EL surface light emitting body 3 formed by laminating transparent electrodes 32, an org. light emitting layer 33 and metallic electrodes 34 on the transparent substrate 31 is arranged behind the diffusion plate 2. This org. EL surface light emitting body 3 may be functioned as a reflection plate at the time of non-energization. The directivity of the reflected light is high and the visibility is poor in the case of the reflection plate having a smooth surface and therefore, the light diffusion plate 2 is necessary. A light diffusion plate which is provided with ruggedness on its surface and is transparent is general as the light diffusion plate 2. The free changing of the light emitting colors is made possible by selecting the org. light emitting materials or combining these materials. |
