LIQUID CRYSTAL DISPLAY DEVICE FOR IMPROVING THE CHARACTERISTICS OF GATE DRIVE VOLTAGE

摘要

An LCD device can include a liquid crystal display panel having a plurality of gate lines; a controller configured to generate at least four clock signals with different phases; a first gate driver configured to apply a high gate voltage to odd-numbered gate lines in response to at least two of the clock signals; a second gate driver configured to apply the high gate voltage to even-numbered gate lines in response to other clock signals; primary discharge circuits each configured to apply a low gate voltage to the respective odd-numbered gate line in response to a carry signal opposite to a voltage level on one of posterior odd-and-even-numbered gate lines; and secondary discharge circuits each configured to apply the low gate voltage to the respective even-numbered gate line in response to the carry signal opposite to the voltage level on the other one of the posterior odd-and-even-numbered gate lines.

主权项

1. A liquid crystal display device comprising:
a liquid crystal display panel in which a plurality of gate lines are formed; a controller configured to generate at least four clock signals with different phases; a first gate driver configured to apply a high gate voltage to odd-numbered gate lines in response to at least two of the clock signals from the controller; a second gate driver configured to apply the high gate voltage to even-numbered gate lines in response to the others of the clock signals from the controller; primary discharge circuits each configured to apply a low gate voltage to the respective odd numbered gate line in response to a carry signal opposite to a voltage level on one of posterior odd-and-even-numbered gate lines; and secondary discharge circuits each configured to apply the low gate voltage to the respective even-numbered gate line in response to the carry signal opposite to the voltage level on the other one of the posterior odd-and-even-numbered gate lines, wherein the first gate driver includes a plurality of primary stages which each include a. gate output portion used to output the high gate voltage to the respective odd-numbered gate line and a carry output portion used to output the carry signal to the discharge circuit connected to one of anterior odd-and-even-numbered gate lines, and the second gate driver includes a plurality of secondary stages which each include another gate output portion used to output the high gate voltage to the respective even-numbered gate line and another carry output portion used to output the carry signal to the discharge circuit connected to the other one of the anterior odd-and-even-numbered gate lines.