| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a projection mode video display device, to improve its brightness, to realize its high picture quality and to attain its high performance by realizing efficient heat radiation from optical parts with polarizing plates. SOLUTION: Each polarizing plate of the display element in the projection mode video display device has double plates construction. The polarization degree of the one out of the double plates closer to the light source is made lower than that of the other. Furthermore, the two polarizing plates are fixed on both sides of a light transmissive member. |
