| 摘要 |
PROBLEM TO BE SOLVED: To provide a display device with high efficiency of extracting a light beam from a waveguide. SOLUTION: In the display device having a light source, the waveguide 1 and a plurality of optical extraction parts 15 which extract light beams by selectively touching the waveguide, thickness of the waveguide is defined as≤1/2 of the width of the optical extraction part and≥30 microns. COPYRIGHT: (C)2004,JPO |
