| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical member capable of securing high image quality of a display image, and to provide a projection image display device using the optical member. <P>SOLUTION: In the optical member, a polarization treatment layer for treating polarization which is disposed on the light emission side of an image display element and a viewing angle compensation element layer for compensating retardation of light are supported by a transparent support, wherein the transparent support has an area of 550 mm<SP>2</SP>or less and is made of magnesium oxide. <P>COPYRIGHT: (C)2007,JPO&INPIT |
