A hybrid latch flip-flop is applied to an LCD. The hybrid latch flip-flop includes a negative pulse generation unit, a latch flip-flop, and a buffer unit. The latch flip-flop includes a sampling unit and a hold unit. One feature of the present invention is that fewer transistors are employed in the hybrid latch flip-flop, which gives rise to low power consumption. Another feature of the present invention is that, by employing the negative pulse generation unit of a double edge trigger type, the data processing capacity of the hybrid latch flip-flop is doubled without changing the clock frequency.