1. Field of the Invention
The present invention relates to a liquid crystal display (LCD) device, and more particularly, to an LCD device that can reduce a fabrication cost and can prevent a decrease in picture quality caused by unfilled pixel cells.
2. Discussion of the Related Art
A liquid crystal display (LCD) device controls an optical transmission ratio of liquid crystal molecules using an electric field to thereby display an image. In general, an LCD device is provided with a liquid crystal panel having liquid crystals between two glass substrates, a matrix of liquid crystal cells, with switching devices for respectively changing signals in the liquid crystal cells, a driving circuit for driving the liquid crystal panel, and a backlight unit for directing light onto the liquid crystal panel.
Recently there have been efforts to reduce the number of signal lines or the number of circuit components of the liquid crystal panel to develop a thin and light, as well as low cost liquid crystal display device. For example, Korean patent publication No. 10-2003-0039972 discloses a flexible printed circuit and a liquid crystal display device without a gate printed circuit board that can reduce the panel size and the production cost of the liquid crystal display device.
However, because a plurality of data and gate driver integrated circuits, data printed circuit boards, and the like are provided, the flexible printed circuit and the liquid crystal display device even without having a gate printed circuit board have problems in that the reduction of the size and the production cost is limited, and power consumption is high.
For the related art LCD device, if the ambient temperature of liquid crystal panel is low (for example, below −5° C.), the charging property of pixel cell is lowered so that it causes the deterioration of picture quality due to unfilled pixel cells.