Simple-matrix liquid crystal driving method, liquid crystal driver, and liquid crystal display apparatus
First Claim
1. A method for driving a simple-matrix liquid crystal panel in which row electrodes of the liquid crystal panel are simultaneously driven in blocks of three row electrodes by a multi-line addressing drive system using an orthogonal matrix and four gradations per pixel of the liquid crystal panel are displayed for every three frames by a frame-rate-control gradation system, comprising:
- using a cyclic orthogonal matrix with three rows and four columns as the orthogonal matrix, wherein the three rows correspond to the three row electrodes in at least one of the blocks;
generating three gradation palettes having different phases of ON/OFF data of intermediate gradations;
generating a frame-rate-control phase table for an entire screen of the liquid crystal panel in which the three gradation palettes are distributed so that a sequence direction of the ON/OFF data of the three gradation palettes coincides with a circulation direction of data of the cyclic orthogonal matrix, and assigning a predetermined gradation palette to each of the pixels of the liquid crystal panel;
simultaneously updating frames of the frame-rate-control gradation system and column vectors of the cyclic orthogonal matrix on a field-by-field basis to perform drive control and gradation control of each of the pixels of the liquid crystal panel; and
completing gradation display of each of the pixels of the liquid crystal panel for 12 fields constituting the three frames of the frame-rate-control gradation system.
1 Assignment
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Accused Products
Abstract
A cyclic orthogonal matrix with three rows and four columns is used to drive a simple-matrix liquid crystal panel. Three gradation palettes having different phases of ON/OFF data of intermediate gradations are generated. A frame-rate-control phase table for an entire screen of the liquid crystal panel is generated in which the three gradation palettes are distributed so that the sequence direction of the ON/OFF data of the three gradation palettes coincides with the circulation direction of data of the cyclic orthogonal matrix, and a predetermined gradation palette is assigned to each pixel of the liquid crystal panel. Frames of the frame-rate-control gradation system and column vectors of the cyclic orthogonal matrix are simultaneously updated field-by-field to perform drive control and gradation control of each pixel of the liquid crystal panel. The gradation display of each pixel of the liquid crystal panel is completed for 12 fields constituting the three frames of the frame-rate-control gradation system.
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Citations
8 Claims
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1. A method for driving a simple-matrix liquid crystal panel in which row electrodes of the liquid crystal panel are simultaneously driven in blocks of three row electrodes by a multi-line addressing drive system using an orthogonal matrix and four gradations per pixel of the liquid crystal panel are displayed for every three frames by a frame-rate-control gradation system, comprising:
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using a cyclic orthogonal matrix with three rows and four columns as the orthogonal matrix, wherein the three rows correspond to the three row electrodes in at least one of the blocks; generating three gradation palettes having different phases of ON/OFF data of intermediate gradations; generating a frame-rate-control phase table for an entire screen of the liquid crystal panel in which the three gradation palettes are distributed so that a sequence direction of the ON/OFF data of the three gradation palettes coincides with a circulation direction of data of the cyclic orthogonal matrix, and assigning a predetermined gradation palette to each of the pixels of the liquid crystal panel; simultaneously updating frames of the frame-rate-control gradation system and column vectors of the cyclic orthogonal matrix on a field-by-field basis to perform drive control and gradation control of each of the pixels of the liquid crystal panel; and completing gradation display of each of the pixels of the liquid crystal panel for 12 fields constituting the three frames of the frame-rate-control gradation system. - View Dependent Claims (2, 3, 7, 8)
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4. A method for driving a simple-matrix liquid crystal panel in which row electrodes of the liquid crystal panel are simultaneously driven in blocks of seven row electrodes by a multi-line addressing drive system using an orthogonal matrix and eight gradations per pixel of the liquid crystal panel are displayed for every seven frames by a frame-rate-control gradation system, comprising:
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using a cyclic orthogonal matrix with seven rows and eight columns as the orthogonal matrix, wherein the seven rows correspond to the seven row electrodes in at least one of the blocks; generating seven gradation palettes having different phases of ON/OFF data of intermediate gradations; generating a frame-rate-control phase table for an entire screen of the liquid crystal panel in which the seven gradation palettes are distributed so that a sequence direction of the ON/OFF data of the seven gradation palettes coincides with a circulation direction of data of the cyclic orthogonal matrix, and assigning a predetermined gradation palette to each of the pixels of the liquid crystal panel; simultaneously updating frames of the frame-rate-control gradation system and column vectors of the cyclic orthogonal matrix on a field-by-field basis to perform drive control and gradation control of each of the pixels of the liquid crystal panel; and completing gradation display of each of the pixels of the liquid crystal panel for 56 fields constituting the seven frames of the frame-rate-control gradation system. - View Dependent Claims (5, 6)
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Specification