| 摘要 |
PROBLEM TO BE SOLVED: To realize color display with good display quality by using a temperature compensated phase difference plate where a retardation value gets smaller with the rise of temperature. SOLUTION: This color liquid crystal display device is provided with a liquid crystal cell 1, polarizing plates 2 and 3, a reflection plate 4 and the phase difference plate 5 where the retardation value is changed according to temperature. Since the phase difference plate where the retardation value gets smaller with the rise of the temperature similarly to liquid crystal, concretely, the phase difference plate where the ratio of the retardation value at 70 deg.C to the retardation value at 25 deg.C is >=0.70 and <=0.99 is used, a difference between the retardation values of the liquid crystal at the respective temperatures gets small and matching with the liquid crystal is improved. Especially, it is effective because the white color of a background is not changed according to the temperature in the case of a positive type, and the black color of the background is not changed according to it in the case of a negative type. When the white color and the black color of the background are not changed according to the temperature in such a way, a hue at each voltage is stable and vivid color display is synthetically realized. |
