| 摘要 |
A method for detecting whether or not a display mode has to be switched and for detecting a frame of a liquid crystal display panel. The frame has M vertical blocks each including K display lines each having N horizontal blocks each being composed of multiple display units. First, a horizontal block flag value of each horizontal block is obtained according to energy levels of all of the display units of the horizontal block. Then, a display line flag value of each display line is obtained according to horizontal block flag values of all of the horizontal blocks of the display line. Next, M vertical block flag values are obtained according to the display line flag values of all of the display lines in each vertical block. Then, it is determined whether or not the display mode has to be switched according to the M vertical block flag values.
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