Fractal Methodology Research And IP Core Implementation For FPD Grey Scale Controlling

In our country the high articulation FPD's (Flat Panel Display) products are the preferential topic of scientific research and key domain of national economy development, and the gray scale is an important parameter to judge the display quality. The main method to control the FPD's gray scales nowadays is Pulse Width Modulation (PWM) one that orderly scans the display pixel by row, column and frame to obtain the gray scale display. The time waste produced in the scanning process results in the bottle problem of high articulation multimedia FPDs development.Aiming at the time redundancy in the FPD imaging process, the thesis thoroughly studied the some problems for FPD gray scale controlling based on the fractal theory, dissertates the construction of the space-time mapping topology architecture, the proposition of optimal scanning structure for FPD's gray imaging, and the creation of the fractal theoretic model and its self-similar fractal dimension, then discusses detailedly the designing, implementation process and the application result of a fractal scanning IP (Intellective Property) core for the purpose of eliminating time redundancy and increasing the scanning availability. The main work and achievements are listed as follows:1. The author introduces the transfer mechanism among digital memory, display media and visual space, the distributing characteristic of time redundancy in view of theoretical analysis and experimental verifying, indicates the bottle problem and its causation of high articulation multimedia FPDs development, then dissertates the construction of the space-time mapping topology architecture that cast gray scale matrix in space to a gray scale scanning space-time plane. The sub-space partition strategy was ascertained by the distributing characteristic research of time redundancy. A sub-space scanning method by bit was proposed to provide a novel approach of raising scanning efficiency, which broke through the traditional imaging method by decomposing one plane into muti-planes2. The thesis studied the optimal scanning scheme of gray scale imaging based on the fractal geometry, proposed the mathematic model for fractal scanning by analyzing the fractal characteristic of space-time mapping topology, then deduced the Hausdorff fractal dimension and self-similar dimension of FPD's scanning structure...