5.3: LCD Projection Image Source for Head‐Up Display

Abstract

This paper describes the performance requirements, design, and fabrication of a LCD projection image source for use in a wide field of view head-up display (HUD) optical system. The LCD projector replaces the commonly used CRT, with the intended benefits of lower cost, multicolor, improved raster brightness, and digital interface. Predicted and measured results are reported, with descriptions of the key technical challenges.

P‐49: Comparison of the Readability of Colour Head‐up Displays Using LED and Laser Light Sources

“…This is notably in terms of driver safety, since the presentation of imagery within the visual accommodation of the driver enables recognition and action upon information more quickly than would otherwise be possible [2], [3]. The majority of commercially-available HUDs are based on TFT-LCD imagers employing LED light sources and are limited to, at most, bi-chrome colour reproduction [4], [5]. Figure 2 left demonstrates the limitations of current TFT-LCD HUD technology employing red and green LEDs.…”