Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2011-03-01
2011-03-01
Nguyen, Kevin M (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C703S002000
Reexamination Certificate
active
07898520
ABSTRACT:
Computer-implemented methods of simulating backlights, and machine-readable media for carrying out such methods, are disclosed. The backlight may include a plurality of components, each component having at least one element. Some methods can include: tracing rays to an output plane of the backlight; collecting information from the traced rays to produce a first database containing spatial and directional information of the rays incident on the output plane; associating a probability function with the output plane; and calculating a second database containing spatial and directional information for rays exiting the output plane as a function of the probability function and the database. The output plane can if desired correspond to a stack of optical films, e.g., diffusing films, prismatic films, reflective polarizing films, turning films, and the like. Preferably, the probability function is a bi-directional scattering distribution function (BSDF) of the output plane.
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3M Innovative Properties Company
Lee, Jr. Kenneth B
Nguyen Kevin M
Pralle Jay R.
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