DC-DC CONVERTER, DISPLAY APPARATUS HAVING THE SAME AND METHOD OF DRIVING DISPLAY PANEL USING THE SAME

摘要

A method of differently producing driving clock signals for a shift register of a gate lines driving circuit of a Liquid Crystal Display (LCD), the method includes the steps of determining whether an ambient temperature is greater than or not in comparison to a predetermined threshold temperature; in response to the determining indicating that the ambient temperature is greater, using a first ON voltage and a first charge canceling method; and in response to the determining indicating that the ambient temperature is not greater, using a second ON voltage and a second charge canceling method, where the second ON voltage is different from the first ON voltage and where the second charge canceling method is different from the first charge canceling method. The second charge canceling method may have a shorter duration than that of the first charge canceling method. The second ON voltage may be greater than the first ON voltage.

主权项

1. A DC-DC converter comprising:
a temperature compensating part configured to generate a first ON voltage at a temperature equal to or greater than a predetermined threshold temperature and to generate a second ON voltage at a temperature less than the threshold temperature; and a clock generating part configured to generate a first clock signal and a first clock bar signal based on the first ON voltage and while using a first charge sharing resistor at the temperature equal to or greater than the threshold temperature and to generate a second clock signal and a second clock bar signal based on the second ON voltage and while using a second charge sharing resistor at the temperature less than the threshold temperature, wherein the first clock bar signal has a different timing than that of the first clock signal, and the second clock bar signal has a different timing than that of the second clock signal.