A phthalazinone ketone derivative as represented by formula, a preparation method thereof, a pharmaceutical composition containing the derivative, a use thereof as a poly polymerase inhibitor, and a cancer treatment method thereof are described. The base board is used for placing a stator and a rotor and has at least one first assembly hole. The UHFVHF matching circuit includes a second LTCC inductance, a second varactor diodes and a fine-tune capacitor electrically connected to determine the maximum gain frequency of the UHFVHF matching circuit. The module manufacturing method includes a novel method of constructing and positioning a gable. In addition, a conversion unit converts the image data relating to the first color region when the size of the first color region is equal to or less than a predetermined number of pixels so as to increase a luminance of the first color region.