Active modules for large screen displays

Details Active modules for large screen displays Active modules for large screen displays

1994-07-01

1996-06-04

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural display systems

Tiling or modular adjacent displays

345903, G09G 500

Patent

active

055237690

ABSTRACT:
High resolution modular large screen displays which can require tens of minutes to display or "paint" an image are updated in real time through the use of active modules, each having its own display device, display driver, processor, memory and interfacing. Communication channels are provided between modules themselves as well as between the modules and a network interface that distributes the video source material in parallel to the modules. The modular approach coupled with the use of active modules permits significant communication reduction that in turn permits real time image production across large areas due to the use of parallel data paths to the display memory distributed across the modules, and through the transmission of structured data, including compressed images, compressed video, sampled data and graphics primitives, permitted by the provision in each module of a processor which converts structured data to images. The use of modules with internal processing also permits driving displays of differing configurations, such as oblong, trapezoidal and even circular displays, or even driving displays with irregular surfaces. As a further result of using active modules, increased speed or flexibility is achieved in part due to computer processing power which may be directed only to those sections of the display that are actively addressed. As an additional feature, the active modules may be initialized by software agents, with formatting and other display parameters being transparent to the format or pixel density of the original image.

REFERENCES:
patent: 4673974 (1987-06-01), Ito
patent: 4745404 (1988-05-01), Kallenberg
patent: 4800376 (1989-01-01), Suga et al.
patent: 4833542 (1989-05-01), Hara
patent: 5361078 (1994-11-01), Caine

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