Method for selecting FRC pattern

A method for selecting frame rate conversion (FRC) pattern, comprising the following steps:

• (1) providing a display device, wherein the display device comprises:
• a display panel, a signal controller electrically connected to the display panel, and a data driver that drives the display panel, the signal controller comprising:
• a look-up table and a data processor electrically connected to the look-up table, the look-up table storing a plurality of different FRC patterns;
• (2) the data driver driving the display panel to display a pure color image, the signal controller supplying polarity distribution charts of two adjacent frames of the pure color image by applying an inversion operation and expanding the polarity distribution charts to m×n dimensions, where m and n are integer multiples of four;
• (3) establishing matrixes A, B that respectively correspond to the two frames according to the two frames;
• (4) the data processor selecting and retrieving one of the FRC patterns from the look-up table and expanding the FRC pattern to matrixes C, D of m×n dimensions;
• (5) the data processor taking an operation on matrixes A, B, C, and D according to the formula A.*C+B.*D and making a two-dimensional chart on the result of the operation, wherein the symbol “.*” indicates element-wise product of two individual matrixes, where each of the elements of the matrix product is equal to the multiplication of the elements of the two individual matrix at a position corresponding to that of the matrix product;
• and
• (6) retrieving a next one of the FRC patterns from the look-up table if the two dimensional chart shows a bright/dark strip and repeating steps (4), (5), and (6),
• wherein steps (4), (5), and (6) are repeated for each of the FRC patterns of the look-up table until no bright/dark strip shows;
• and
• wherein after step (6), step (7) is further included to prompt that no FRC pattern can be used if all the FRC patterns have been tested and no result indicating there is no bright/dark strips can be obtained;
• wherein the inversion operation of step (2) comprises dot inversion and line inversion;
• wherein the dot inversion operation comprises:
• single-dot inversion, two-dot inversion, and three-dot inversion;
• wherein in step (3), positive polarity in the polarity distribution charts corresponds to an element “+1” of the matrixes A, B and negative polarity in the polarity distribution charts corresponds to an element “−1” of the matrixes A, B;
• wherein in step (4), elements “0” and “1” are used to expand the FRC pattern into matrixes C, D of m×n dimensions;
• wherein the plurality of FRC patterns are of 0.5 level;
• wherein the look-up table stores three different FRC patterns;
• wherein each of the FRC patterns is in the form of a 4×4 data matrix;
• and
• wherein the display panel comprises a plurality of pixels.