Liquid crystal display device
First Claim
1. A liquid crystal display device comprising:
- a plurality of data lines;
a plurality of gate lines intersecting the plurality of data lines;
a plurality of pixel electrodes respectively arranged at intersections between the plurality of data lines and the plurality of gate lines;
a plurality of switching elements, each including a control terminal connected to a corresponding one of the plurality of gate lines, a first terminal connected to a corresponding one of the plurality of pixel electrodes, and a second terminal connected to a corresponding one of the plurality of data lines;
a plurality of storage capacitor lines respectively corresponding to the plurality of gate lines;
a plurality of storage capacitors, each including a first capacitor electrode connected to a corresponding one of the plurality of pixel electrodes and a second capacitor electrode connected to a corresponding one of the plurality of storage capacitor lines;
a first drive unit, connected to the plurality of storage capacitor lines, for selectively applying a storage capacitor potential to the plurality of storage capacitor lines; and
a second drive unit, connected to the plurality of data lines, for alternately providing an image data signal having a positive polarity and an image data signal having a negative polarity to the plurality of data lines, wherein the second drive unit selects some of the data lines so that an equal number of image data signals having a positive polarity and image data signals having a negative polarity are provided to the selected data lines, the second drive unit simultaneously providing the selected data lines with the image data signals having a positive polarity and the image data signals having a negative polarity.
1 Assignment
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Accused Products
Abstract
An LCD device driven with storage capacitors prevents defective image display caused by capacitive coupling between data lines and storage capacitor lines. The LCD device includes pixel electrodes arranged at intersections between drain lines and gate lines, switching elements, storage capacitor lines corresponding to the gate lines, storage capacitors having first electrodes connected to the pixel electrodes and second electrodes connected to the storage capacitor lines, a switching circuit for selectively applying a potential to the storage capacitor lines, and a drain driver. The drain driver selects some of the data lines so that an equal number of image data signals having a positive polarity and image data signals having a negative polarity are provided to the selected data lines and simultaneously provides the selected data lines with the image data signals having a positive polarity and the image data signals having a negative polarity.
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Citations
7 Claims
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1. A liquid crystal display device comprising:
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a plurality of data lines;
a plurality of gate lines intersecting the plurality of data lines;
a plurality of pixel electrodes respectively arranged at intersections between the plurality of data lines and the plurality of gate lines;
a plurality of switching elements, each including a control terminal connected to a corresponding one of the plurality of gate lines, a first terminal connected to a corresponding one of the plurality of pixel electrodes, and a second terminal connected to a corresponding one of the plurality of data lines;
a plurality of storage capacitor lines respectively corresponding to the plurality of gate lines;
a plurality of storage capacitors, each including a first capacitor electrode connected to a corresponding one of the plurality of pixel electrodes and a second capacitor electrode connected to a corresponding one of the plurality of storage capacitor lines;
a first drive unit, connected to the plurality of storage capacitor lines, for selectively applying a storage capacitor potential to the plurality of storage capacitor lines; and
a second drive unit, connected to the plurality of data lines, for alternately providing an image data signal having a positive polarity and an image data signal having a negative polarity to the plurality of data lines, wherein the second drive unit selects some of the data lines so that an equal number of image data signals having a positive polarity and image data signals having a negative polarity are provided to the selected data lines, the second drive unit simultaneously providing the selected data lines with the image data signals having a positive polarity and the image data signals having a negative polarity. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification