Patent ID: 8704746
Filing Date: 2014-04-22
Classification: G09G

Abstract:
1. A line-on-glass liquid crystal display device, comprising: data lines for supplying data signals to drive sub-pixel units on a first substrate; gate lines for supplying gate signals to the sub-pixel units in which each of the gate lines has a first end and a second end such that the gate lines cross the data lines between the first and second ends; a plurality of gate integrated circuits at the first end of each of the gate lines for supplying a gate high voltage signal to one of the gate lines, and for supplying a gate low voltage signal to the other gate lines; a gate low voltage stabilization circuit at the second end of each of the gate lines and connected to a gate low voltage line from a data printed circuit board for applying a second gate low voltage signal to one of the other gate lines; a plurality of drive integrated circuits mounted on each of tape carrier packages between the printed circuit board and the first substrate for supplying drive signals to the data lines; a storage capacitor formed on each of the sub-pixel units, wherein the storage capacitors of nth sub-pixel units are formed between pixel electrodes of nth sub-pixel units and (n−1)th gate line; and a second substrate including a color filter array, wherein the gate low voltage stabilization circuit is connected to the gate low voltage line on the data printed circuit board via the tape carrier package, wherein the gate low voltage stabilization circuit includes switching devices connected to the second end of each of the gate lines, wherein the switching device for a corresponding (n−1)th gate line is turned on when a gate high voltage signal is applied to an nth gate line so that the second gate low voltage signal is applied to the (n−1)th gate line which is a storage electrode of the storage capacitor corresponding with the nth sub-pixel unit, wherein the second gate low voltage signal is supplied to the switching devices via the tape carrier package from the data printed circuit board, wherein the switching devices are thin film transistors, and wherein each of the thin film transistors include a drain electrode connected to the (n−1)th gate line, a gate electrode connected to the nth gate line, and a source electrode connected to the gate low voltage line, wherein the gate electrode of each of the thin film transistors is connected to the second end of the gate line of a same stage, wherein the (n−1)th gate line is a line corresponding to the (n−1)th sub-pixel units driven by the data signals before the nth sub-pixel units corresponding to the nth gate line, and wherein the gate low voltage stabilization circuit is disposed between the first substrate and the second substrate, and wherein the data lines and the gate low voltage line are commonly connected to the data printed circuit board.