| 摘要 |
<p>A display unit (10) includes an LCD panel (18) for providing an output image (20) to a viewer. An active pixel display (APD) (12), consisting of a matrix of light-emitting diodes which form a back-light for the LCD panel, panel is disposed behind the LCD panel for providing a backlit image to the LCD panel. The LCD panel (18) and the APD panel (12) are vertically stacked one behind the other with an air gap between the APD panel and the LCD panel. The APD panel (12) is configured to provide the backlit image as a first luminance and chrominance modulated image to the LCD panel, and the LCD panel is configured to provide a second luminance modulated light to the viewer. The combination of the first luminance modulation and the second luminance modulation increases the dynamic range of the display unit. The LCD panel and the APD panel have their respective output images synchronized to each other. An optical relay, system (14) adapts the format of the image output by the APD panel to the format of the LCD panel.</p> |
