Disclosed is a pulse signal combination circuit for combining N input pulse signals sequentially effective within each display period into an output pulse signal, N being an integer greater than 1, including N output control units and a pulse signal output end. A first control end of an nth output control unit is configured to receive an nth input pulse signal, a second control end thereof is configured to receive an (n+1)th input pulse signal, and an output end thereof is connected to the pulse signal output end. The nth output control unit is configured to, within a time duration of each display period after the nth input pulse signal is effective for the first time and before the (n+1)th input pulse signal is effective for the first time, output the nth input pulse signal to the pulse signal output end, where n is a positive integer less than N.