Liquid crystal display and driving method thereof
View Patent ↗A method of driving a liquid crystal display wherein an application sequence of a data is changed, to thereby improve a picture quality. In the method, the data is supplied to a desired number of data lines on a basis of first sequence in a first horizontal period. The data is supplied to the desired number of data lines on a basis of second sequence in a second horizontal period following the first horizontal period.
1. A method of driving a liquid crystal display including a plurality of data lines, a data driver for driving the data lines, and a plurality of demultiplexors arranged between the data lines and the data driver to apply a data supplied from the data driver to a desired number of data lines, said method comprising the steps of:
supplying said data to the desired number of data lines on a basis of a first sequence in a first horizontal period; and
supplying said data to the desired number of data lines on a basis of a second sequence in a second horizontal period following the first horizontal period, wherein the second sequence differs from the first sequence, and
wherein said data is reverse-sequentially supplied to the desired number of data lines in the second horizontal period.
2. The method as claimed in claim 1 , wherein said data is sequentially supplied to the desired number of data lines in the first horizontal period.
3. The method as claimed in claim 1 , wherein a scanning signal is applied to any one of a plurality of gate lines arranged in a direction crossing the data lines in said horizontal period.
4. The method as claimed in claim 1 , wherein each of the demultiplexors includes a desired number of switching devices, which are sequentially supplied with a control signal in said first horizontal period.
5. The method as claimed in claim 1 , wherein each of the demultiplexors includes a desired number of switching devices, which are reverse-sequentially supplied with a control signal in said second horizontal period.
6. A method of driving a liquid crystal display including a plurality of demultiplexors that are driven every frame and arranged between a plurality of data lines and a data driver to apply a data supplied from the data driver to a desired number of data lines, said method comprising the steps of:
supplying said data to the desired number of data lines on a basis of a first sequence in the (4i+1) th and (4i+4) th frames (wherein i is an integer); and
supplying said data to the desired number of data lines on a basis of a second sequence in the (4i+2) th and (4i+3) th frames,
wherein the second sequence differs from the first sequence, and
wherein said data is reverse-sequentially supplied to the desired number of data lines in the (4i+2) th and (4i+3) th frames.
7. The method as claimed in claim 6 , wherein said data is sequentially supplied to the desired number of data lines in the (4i+1) th and (4i+4) th frames.
8. The method as claimed in claim 6 , wherein each of the demultiplexors includes a desired number of switching devices, which are sequentially supplied with a control signal in the (4i+1) th and (4i+4) th frames.
9. The method as claimed in claim 6 , wherein each of the demultiplexors includes a desired number of switching devices, which are reverse-sequentially supplied with a control signal in the (4i+2) th and (4i+3) th frames.
10. A method of driving a liquid crystal display including a plurality of demultiplexors that are driven every frame and arranged between a plurality of data lines and a data driver to apply a data supplied from the data driver to a desired number of data lines, said method comprising the steps of:
supplying said data to the desired number of data lines on a basis of a first sequence in the (4i+1) th and (4i+4) th frames (wherein i is an integer); and
supplying said data to the desired number of data lines on a basis of a second sequence in the (4i+2) th and (4i+3) th frames,
wherein the second sequence differs from the first sequence, and
wherein said data is reverse-sequentially supplied to the desired number of data lines in the (4i+1) th and (4i+4) th frames.
11. The method as claimed in claim 10 , wherein said data is sequentially supplied to the desired number of data lines in the (4i+2) th and (4i+3) th frames.
12. The method as claimed in claim 10 , wherein each of the demultiplexors includes a desired number of switching devices, which are reverse-sequentially supplied with a control signal in the (4i+1) th and (4i+4) th frames.
13. The method as claimed in claim 10 , wherein each of the demultiplexors includes a desired number of switching devices, which are sequentially supplied with a control signal in the (4i+2) th and (4i+3) th frames.
14. A liquid crystal display device including a plurality of demultiplexors arranged between a plurality of data lines and a data driver to apply a data supplied from the data driver to a desired number of data lines, said device comprising:
switching devices a desired number of which are included in each demultiplexor and each of which is connected to one data line; and
control means for controlling the switching devices such that said data is sequentially distributed to the desired number of data lines in a first horizontal period and said data is reverse-sequentially distributed to the desired number of data lines in a second horizontal period following the first horizontal period.
15. A liquid crystal display device including a plurality of demultiplexors that are driven every frame and arranged between a plurality of data lines and a data driver to apply a data supplied from the data driver to a desired number of data lines, said device comprising:
switching devices a desired number of which are included in each demultiplexor and each of which is connected to one data line; and
control means for controlling the switching devices such that said data is sequentially distributed to the desired number of data lines on a basis of first sequence in the (4i+1) th and (4i+4) th frames (wherein i is an integer) and said data is reverse-sequentially distributed to the desired number of data lines on a basis of second sequence in the (4i+2) th and (4i+3) th frames.
16. The device as claimed in claim 15 , wherein the control means controls the switching device such that said data is sequentially distributed to the desired number of data lines in the (4i+1) th and (4i+4) th frames and such that said data is reverse-sequentially distributed to the desired number of data lines in the (4i+2) th and (4i+3) th frames.
17. The device as claimed in claim 15 , wherein the control means controls the switching device such that said data is reverse-sequentially distributed to the desired number of data lines in the (4i+1) th and (4i+4) th frames and such that said data is sequentially distributed to the desired number of data lines in the (4i+2) th and (4i+3) th frames.