Patent ID: 9646524
Date: 2017-05-09
CPC Classifications: G09G

Claim:
1. A display device comprising: a display panel; a data driver supplies a data signal to the display panel; a gate driver supplies a gate signal to the display panel; a power supply to supply electric power to at least one of the display panel, the data driver, and the gate driver; a voltage monitor monitors an output voltage output from the power supply unit and output an alarm signal when the output voltage is cut off; and a timing controller receives the alarm signal, and in response: outputs a gate control signal to simultaneously convert the gate signal output from the gate driver into a gate-on voltage for all gate lines during a power-off period; and outputs a data control signal to simultaneously convert the data signal output from the data driver into a black data signal for all data lines during the power-off period, wherein the gate-on voltage gradually decreases during the power-off period.