Abstract:
A method and an apparatus for interlace scanning video signal frequency multiplication are provided. The method includes the following steps: first, removing a part of a first vertical synchronous signal (V-sync signal) which is asynchronous with a first horizontal synchronous signal (H-sync signal); next, capturing a first field and a second field from an interlace scan video signal according to the first V-sync signal obtained in the previous step; performing a frequency multiplication on a frame made up by the first and second fields, and producing a second V-sync signal and a second H-sync signal; finally, compensating for the second V-sync signal on a border between two fields of the frame after the frequency multiplication according to the second H-sync signal. Thereby, the method can be used to perform frequency multiplication using a line buffer instead of a frame buffer, to output through interface scanning without sacrificing image quality.
Abstract:
An image processing method for a display device, for enhancing image quality, includes receiving video signals, sequentially generating a plurality of image data according to the video signals, and sequentially displaying the plurality of image data on a panel of the display device. Each of the plurality of image data includes a frame data and a low-gray-level frame data respectively corresponding to a frame output duration and a vertical blanking duration in a timing sequence of the video signals.