TRANSPORTABLE COMPUTER SYSTEMS HAVING DUAL VIEWING MODES

摘要

Different types of portable computer-based systems are capable of selectively displaying color video images on an actively-driven display surface, or projecting such video images onto a wall surface or projection screen without the need for a bulky overhead projector required by prior art systems. These computer-based systems (1) can be easily reconfigured for projection viewing without physical modification to the LCD display panel assembly (10). A portable light projection accessory device (60) is provided for use with the portable computer-based system (1) of the present invention. In the illustrative embodiments, the portable light projection device (60) has first and second housing portions (61, 62) that are interconnected by a foldable structure (63) that permits the first and second housing portions (61, 62) to be selectively reconfigured for simple trouble-free use during the projection viewing mode of operation, and for compact storage during the direct viewing mode of operation.