| 摘要 |
<p>An optical panel (10) includes a transparent serrated first side (22), and an opposite second side (24), and a black material (28) provided on the serrated first side (22) for intermittently blocking or absorbing light transmission. Image light (16) may be transmitted through the panel (10) at the serrations (26), with contrast provided by the black material (28).</p> |
