Liquid crystal device and method of driving the same
AssigneeLG.Philips LCD Co., Ltd.
InventorDu-Jin Kim
Life of this patent
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Abstract
A driving circuit for driving a liquid crystal display device having a plurality of gate lines, data lines and switch elements connected to the gate and data lines includes a data driver for applying a plurality of data signals to the date lines, a gate driver for applying a plurality of gate signals to the gate lines, a timing controller for providing a plurality of control signals to the data and gate drivers, a power supply for generating a power voltage, and a discharging circuit for applying a first signal and a second signal to the gate driver in accordance with the power voltage.
Claims24
A driving circuit for driving a liquid crystal display device having a plurality of gate lines, data lines and switch elements connected to the gate and data lines, comprising:
- a data driver for applying a plurality of data signals to the date lines;
- a gate driver for applying a plurality of gate signals to the gate lines;
- a timing controller for providing a plurality of control signals to the data and gate drivers;
- a power supply for generating a power voltage;
- and
- a discharging circuit for applying a first signal and a second signal to the gate driver in accordance with the power voltage.
A method for driving a liquid crystal display device having a plurality of gate lines, a plurality of data lines, a plurality of switch elements connected to the gate and data lines, and a gate driver for driving the gate lines, comprising:
- generating a power voltage;
- detecting the power voltage;
- and
- when the power voltage is detected to be lower than a reference voltage, applying a first signal to the gate driver, the first signal corresponding to turning on all of the switching elements.
A method for driving a liquid crystal display device having a plurality of gate lines, a plurality of data lines, a plurality of switch elements connected to the gate and data lines, and a gate driver for driving the gate lines, comprising:
- during an operation mode, generating a power voltage and enabling sequentially the switching elements in a row-by-row manner based on the power voltage, and
- after the operation mode when the power voltage is below a reference voltage, enabling the switching elements synchronously for a discharging period.
Dependencies are inferred from the claim text.