| 摘要 |
PURPOSE:To obtain a liquid crystal light valve which has superior contract and secure sufficient brightness on a screen by bringing a cooling panel which has cooling liquid charged between two transparent substrates into contact with a liquid crystal panel. CONSTITUTION:A package substrate 60 is a circuit board, the lower substrate 61 of the liquid crystal panel is guided in a recessed part cut to the same thickness of the lower substrate 61, and the liquid crystal panel is composed of a polarizing plate 63 of almost the same size with the upper substrate 62. The polarizing plate is brought into contact with the lower substrate 65 of the cooling panel by a connector 64 so that the cooling panel contacts the liquid crystal panel. The upper substrate 66 of the cooling panel is surface where light source light is incident, so the surface is provided with a nonreflective coating to increase incidence efficiency. Guest-host type liquid crystal is charged as the cooling liquid of the cooling panel and electricity is applied to an upper and a lower solid electrode to form a liquid crystal having electrooptic effect and also realize the liquid crystal light valve which has an incident light dimming function and a cooling function. |
