| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid crystal display device capable of transmission type liquid crystal display by using a backlight while maintaining the reflectance of reflection type liquid crystal display by using external light and having satisfactory visibility in a liquid crystal display surface regardless of the outside environment. SOLUTION: A reflection body 4 constituted of plural corner cube prisms is disposed between a liquid crystal layer 6 and a backlight unit 5. In the environment where the outside is bright, the external light transmitted through the liquid crystal layer 6 repeats total reflection in the inner part of the reflection body 4 and is reflected in the same direction of the incident direction to be made incident in the liquid crystal layer 6 again. Thus, the reflection type liquid crystal display is performed. In the environment where the outside is dark and there exists no external light, a switch 18 is turned on to emit the illumination light from an illumination light source 5A of the backlight unit 5. The illumination light is introduced by a light guide plate 5B for a backlight, transmitted through the reflection body 4 and made incident into the liquid crystal layer 6. Thus, the transmission type liquid crystal display is performed. |
