Liquid crystal display and driving method thereof
AssigneeLG.Philips LCD Co., Ltd.
InventorsHong Sung Song, Sang Chang Yun
Life of this patent
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Abstract
A liquid crystal display and a driving method thereof that are capable of driving a liquid crystal display panel with no flicker using a data driver driven by a column inversion system. In the liquid crystal display, a plurality of liquid crystal cells are positioned at intersections between gate lines and data lines. Color filters are arranged in a zigzag type on the liquid crystal cells on a basis of the data lines. A gate driver drives the gate lines. A data driver applies video signals to the data lines by a column inversion system and shifts said video signals applied to any one of odd horizontal lines and even horizontal lines by one channel to apply said video signals corresponding to the color filters to the liquid crystal cells.
Claims17
A liquid crystal display device, comprising:
- a plurality of liquid crystal cells positioned at crossings between gate lines and data lines;
- color filters arranged in a zigzag pattern on the liquid crystal cells;
- a gate driver for driving the gate lines;
- and
- a data driver for applying video signals to the data lines by a column inversion system and for shifting said video signals applied to any one of odd horizontal lines and even horizontal lines by one channel to apply said video signals corresponding to the color filters to the liquid crystal cells.
A liquid crystal display device, comprising:
- a plurality of liquid crystal cells positioned at intersections between gate lines and data lines;
- color filters having like colors arranged in a zigzag type on the liquid crystal cells on a basis of the data lines;
- a gate driver for driving the gate lines;
- a data driver for converting an input video data into video signals adopting a column inversion system to apply them to the data lines;
- and
- a timing controller for controlling the gate driver and the data driver and for applying said video data to the data driver as it is or with shifting it by one clock every horizontal period.
A method of driving a liquid crystal display panel having liquid crystal cells provided at intersection between gate lines and data lines and including color filters arranged in a zigzag type on the liquid crystal cells on a basis of the data lines, comprising the steps of:
- applying a video data for one horizontal line including a blank signal as a first video data for each nth horizontal period (wherein n is an odd or even number);
- applying a video data for one horizontal line including a blank signal as a last video data with shifting it by one channel for each (n+1l)th horizontal period;
- and
- converting said video data into video signals adopting a column inversion system and applying them to the liquid crystal display panel.
Dependencies are inferred from the claim text.