Liquid crystal cells – elements and systems – Liquid crystal system – Projector including liquid crystal cell
Patent
1998-07-15
2000-08-15
Parker, Kenneth
Liquid crystal cells, elements and systems
Liquid crystal system
Projector including liquid crystal cell
349 15, 349 64, 349 68, 349 12, 349 58, 349 70, 349 77, 349 86, G02F 11335, G02F 11347
Patent
active
061044474
ABSTRACT:
An electro-optical backlighting panel construction for use in portable computer-based systems having direct and projection viewing modes of operation. In the illustrative embodiments of the present invention, the electro-optical backlighting panel is integrated with a LCD display panel, a micropolarization panel, and a touch-screen writing panel to provide several different types of portable computer-based systems including, for example, a portable notebook computer, a computer-driven image display device, and a portable pen-computing device. In general, each of these 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. These computer-based systems can be easily reconfigured for projection viewing without any sort of physical modification to the LCD display panel assembly. If desired, these computer-based systems can be used to directly view "spatially-multiplexed" images of 3-D objects or imagery during the direct viewing mode, and when desired these spatially-multiplexed images can be projected onto a wall surface or projection screen during the projection viewing mode. When the spatially-multiplexed images are viewed through electrically-passive polarized glasses, the 3-D object is perceived with stereoscopic depth sensation in either mode of viewing.
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Duong Tai V.
Parker Kenneth
Perkowski, Esq., P.C. Thomas J.
Reveo Inc.
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