| 摘要 |
PROBLEM TO BE SOLVED: To provide a projection display apparatus capable of reducing a thickness and displaying an improved image.SOLUTION: A projection display apparatus 100 includes a light source 102 configured to emit a first light, a reflective light modulator 104 configured to modulate the first light to form a second light conveying a rendered image, a polarizer 108 and a light guide plate 106. The light guide plate 106 can include a plurality of optical elements 146 embedded in the thickness of the light guide plate 106 or provided on an outer surface of the light guide plate 106. An illuminating light entering the light guide plate 106 can be redirected toward the light modulator 104 by reflection at the grooves or optical elements 146. Moreover, an image light from the light modulator 104 can travel through the light guide plate 106 to the polarizer.SELECTED DRAWING: Figure 1 |
