Patent ID: 9548026
Date: 2017-01-17
CPC Classifications: G09G

Claim:
1. An emission control driver, comprising: a plurality of stages that sequentially outputs emission control signals through emission control lines, each stage including: a first signal processing circuit that receives a first voltage and outputs first and second signals in response to first and second sub-control signals; a second signal processing circuit that receives a second voltage having a level higher than a level of the first voltage and outputs third and fourth signals in response to a third sub-control signal, the first signal, and the second signal; and a third signal processing circuit that receives the first and second voltages and outputs the emission control signal in response to the third and fourth signals, wherein: the first signal processing circuit of a first stage among the stages receives a start signal as the first sub-control signal, the first signal processing circuit of each stage except the first stage receives the emission control signal output from a previous stage as the first sub-control signal, wherein: the fourth signal changes from a second level to a third level at a time point at which the third sub-control signal changes from a first level to the second level, and the fourth signal changes from the second level to the first level at a time point at which the start signal changes from the second level to the first level, the second level lower than the first level, and the third level lower than the second level.