Method and apparatus for producing shading on a flat panel display
First Claim
1. A method for use in a display system to encode shading in an image to be displayed, the system including a video display having a plurality of pixel elements each being mapped to a respective bit within a memory, and a controller for energizing, at a predetermined frame refresh rate, the pixel elements according to an image bitmap stored in the memory, the method comprising the steps of:
- generating a source bitmap representative of the image;
specifying an energizing pattern of successive frames, the pattern defining the shading by indicating for each frame whether the pixels of the display generally are to be on or off;
generating, substantially at the refresh rate, an encoded bitmap by manipulating bits of the source bitmap as a function of the energizing pattern for each of the frames; and
storing the encoded bitmap in the memory.
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Accused Products
Abstract
A display system that encodes shading in an image to be displayed. The system comprises a video display having a plurality of pixel elements each being mapped to a respective bit within a memory, and a controller for energizing, at a predetermined frame refresh rate, the pixel elements according to an image bitmap stored in the memory. An energizing pattern of successive frames, which defines the shading by indicating for each frame whether the pixels of the display generally are to be on or off, is utilized by a processor to generate, at the refresh rate, an encoded bitmap by manipulating bits of a source bitmap as a function of the energizing pattern for each of the frames, and storing the encoded bitmap in the memory.
38 Citations
28 Claims
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1. A method for use in a display system to encode shading in an image to be displayed, the system including a video display having a plurality of pixel elements each being mapped to a respective bit within a memory, and a controller for energizing, at a predetermined frame refresh rate, the pixel elements according to an image bitmap stored in the memory, the method comprising the steps of:
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generating a source bitmap representative of the image; specifying an energizing pattern of successive frames, the pattern defining the shading by indicating for each frame whether the pixels of the display generally are to be on or off; generating, substantially at the refresh rate, an encoded bitmap by manipulating bits of the source bitmap as a function of the energizing pattern for each of the frames; and storing the encoded bitmap in the memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 25, 26)
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10. A method for use in a display system to encode shading in an image to be displayed, the system including a video display having a plurality of pixel elements each being mapped to a respective bit within a memory, and a controller for energizing, at a predetermined frame refresh rate, the pixel elements according to an image bitmap stored in the memory, the method comprising the steps of:
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generating a source bitmap consisting of a foreground and a background of the image; specifying first and second energizing patterns, each pattern defining a level of shading by indicating for successive frames whether the pixels of the display generally are to be on or off, the first pattern being the level of shading for the foreground and the second pattern being the level of shading for the background; generating, substantially at the refresh rate, an encoded bitmap by manipulating bits of the source bitmap as a function of the first and second energizing patterns for each of the frames; and storing the encoded bitmap in the memory. - View Dependent Claims (11, 12, 13, 14, 15, 27, 28)
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16. A display system that encodes shading in an image to be displayed, comprising:
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a video display having a plurality of pixel elements each being mapped to a respective bit within a memory; a controller for energizing, at a predetermined frame refresh rate, the pixel elements according to an image bitmap stored in the memory; a source bitmap representative of the image; an energizing pattern of successive frames, the pattern defining the shading by indicating for each frame whether the pixels of the display generally are to be on or off; and means for generating, substantially at the refresh rate, an encoded bitmap by manipulating bits of the source bitmap as a function of the energizing pattern for each of the frames, and storing the encoded bitmap in the memory. - View Dependent Claims (17, 18, 19, 20)
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21. A display system that encodes shading in an image to be displayed, comprising:
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a video display having a plurality of pixel elements each being mapped to a respective bit within a memory; a controller for energizing, at a predetermined frame refresh rate, the pixel elements according to an image bitmap stored in the memory; a source bitmap consisting of a foreground and a background of the image; first and second energizing patterns, each pattern defining a level of shading by indicating for successive frames whether the pixels of the display generally are to be on or off, the first pattern being the level of shading for the foreground and the second pattern being the level of shading for the background; and means for generating, substantially at the refresh rate, an encoded bitmap by manipulating bits of the source bitmap as a function of the first and second energizing patterns for each of the frames, and storing the encoded bitmap in the memory. - View Dependent Claims (22, 23, 24)
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Specification