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Palette Select Scheme for a Color Graphics Display Disclosure Number: IPCOM000050253D
Original Publication Date: 1982-Sep-01
Included in the Prior Art Database: 2005-Feb-10

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Dean, ME Eggebrecht, LC Kummer, DA Saenz, JA [+details]


The number of different colors one can display per pixel (picture element) on the color display monitor or a conventional television screen is dependent on how many bits of information per pixel are available to the color generator. The common format is to have three color bits per pixel, such as red, green and blue, and one additional bit to provide two intensity levels. With four bits of information each pixel can have 16 different colors. Many times though each bit of information must come from a separate memory buffer. In a four-bit per pixel scheme, four memory buffers may be required to operate in parallel and synchronously to supply enough information to the display screen. This scheme requires more logic than a single buffer palette operating scheme.