Liquid crystal display element having controlled storage capacitance
First Claim
1. A liquid crystal display element comprising:
- a pair of substrates;
a liquid crystal layer sandwiched between said pair of substrates;
a plurality of gate lines disposed on one of said pair of substrates;
a plurality of drain lines disposed to be insulated from and intersect said plurality of said gate lines on said one of said pair of substrates;
a plurality of thin film transistors disposed in a vicinity of intersections of said plurality of gate lines and said plurality of drain lines;
a plurality of pixel electrodes made of transparent conductive material, each of said plurality of pixel electrodes being disposed in an area surrounded by two adjacent ones of said plurality of gate lines and two adjacent ones of said plurality of drain lines, and driven by a corresponding one of said plurality of thin film transistors;
a common electrode disposed on another of said pair of substrates to face said plurality of pixel electrodes; and
a plurality of storage lines disposed below said plurality of pixel electrodes with an insulating layer interposed between said plurality of storage lines and said plurality of pixel electrodes, each of said plurality of pixel electrodes being formed with an opening in a portion thereof facing a corresponding one of said plurality of storage lines.
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Accused Products
Abstract
A liquid crystal display element includes a pair of substrates, a liquid crystal layer sandwiched therebetween, gate lines and drain lines disposed to intersect the gate lines disposed on one of the substrates, thin film transistors disposed at the intersections of the gate and drain lines, pixel electrodes disposed in an area surrounded by two adjacent gate lines and two adjacent drain lines, a common electrode disposed on the other substrate. The liquid crystal display element is also provided with storage lines disposed below the pixel electrodes with an insulating layer interposed therebetween to form a capacitance therebetween. Each of the pixel electrodes is formed with an opening in a portion thereof facing the storage lines.
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Citations
12 Claims
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1. A liquid crystal display element comprising:
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a pair of substrates;
a liquid crystal layer sandwiched between said pair of substrates;
a plurality of gate lines disposed on one of said pair of substrates;
a plurality of drain lines disposed to be insulated from and intersect said plurality of said gate lines on said one of said pair of substrates;
a plurality of thin film transistors disposed in a vicinity of intersections of said plurality of gate lines and said plurality of drain lines;
a plurality of pixel electrodes made of transparent conductive material, each of said plurality of pixel electrodes being disposed in an area surrounded by two adjacent ones of said plurality of gate lines and two adjacent ones of said plurality of drain lines, and driven by a corresponding one of said plurality of thin film transistors;
a common electrode disposed on another of said pair of substrates to face said plurality of pixel electrodes; and
a plurality of storage lines disposed below said plurality of pixel electrodes with an insulating layer interposed between said plurality of storage lines and said plurality of pixel electrodes, each of said plurality of pixel electrodes being formed with an opening in a portion thereof facing a corresponding one of said plurality of storage lines. - View Dependent Claims (2, 3)
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4. A liquid crystal display element comprising:
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a pair of substrates;
a liquid crystal layer being interposed between said pair of substrates;
a plurality of gate lines disposed on one of said pair of substrates;
a plurality of drain lines disposed to be insulated from and intersect said plurality of said gate lines on said one of said pair of substrates;
a plurality of thin film transistors disposed in a vicinity of intersections of said plurality of gate lines and said plurality of drain lines;
a plurality of pixel electrodes made of transparent conductive material, each of said plurality of pixel electrodes being disposed in an area surrounded by two adjacent ones of said plurality of gate lines and two adjacent ones of said plurality of drain lines, and driven by a corresponding one of said plurality of thin film transistors; and
a common electrode disposed on another of said pair of substrates to face said plurality of pixel electrodes, said common electrode being formed with cutouts in portions thereof facing at least one of (1) said plurality of gate lines and (2) said plurality of drain lines.
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5. A liquid crystal display element comprising:
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a pair of substrates;
a liquid crystal layer sandwiched between said pair of substrates;
a plurality of gate lines disposed on one of said pair of substrates;
a plurality of drain lines disposed to be insulated from and intersect said plurality of said gate lines on said one of said pair of substrates;
a plurality of thin film transistors disposed in a vicinity of intersections of said plurality of gate lines and said plurality of drain lines;
a plurality of pixel electrodes made of transparent conductive material, each of said plurality of pixel electrodes being disposed in an area surrounded by two adjacent ones of said plurality of gate lines and two adjacent ones of said plurality of drain lines, and driven by a corresponding one of said plurality of thin film transistors;
a common electrode disposed on another of said pair of substrates to face said plurality of pixel electrodes;
a plurality of storage lines disposed below said plurality of pixel electrodes with an insulating layer interposed between said plurality of storage lines and said plurality of pixel electrodes, each of said plurality of pixel electrodes and a portion of said insulating layer thereunder and being formed with an opening in a portion thereof facing a corresponding one of said plurality of storage lines, said opening passing through all thicknesses of said plurality of pixel electrodes and said insulating layer;
a plurality of column-like conductive spacers, each of said plurality of column-like conductive spacers disposed in a respective one of said openings for electrically connecting one of said plurality of storage lines to said common electrode. - View Dependent Claims (7, 9, 11)
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6. A liquid crystal display element comprising:
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a pair of substrates sealed together along peripheries thereof with a sealing member;
a liquid crystal layer being interposed between said pair of substrates;
a plurality of gate lines disposed on one of said pair of substrates;
a plurality of drain lines disposed to be insulated from and intersect said plurality of said gate lines on said one of said pair of substrates;
a plurality of thin film transistors disposed in a vicinity of intersections of said plurality of gate lines and said plurality of drain lines;
a plurality of pixel electrodes made of transparent conductive material, each of said plurality of pixel electrodes being disposed in an area surrounded by two adjacent ones of said plurality of gate lines and two adjacent ones of said plurality of drain lines, and driven by a corresponding one of said plurality of thin film transistors;
a common electrode disposed on another of said pair of substrates to face said plurality of pixel electrodes;
a lead disposed on said one of said pair of substrates for supplying a voltage to said common electrode;
a plurality of storage lines disposed below said plurality of pixel electrodes with an insulating layer interposed between said plurality of storage lines and said plurality of pixel electrodes, each of said plurality of pixel electrodes and a portion of said insulating layer thereunder and being formed with an opening in a portion thereof facing a corresponding one of said plurality of storage lines, said opening passing through all thicknesses of said plurality of pixel electrodes and said insulating layer;
a plurality of column-like conductive spacers, each of said plurality of column-like conductive spacers disposed in a respective one of said openings for electrically connecting one of said plurality of storage lines to said common electrode; and
a column-like conductive spacer disposed in a vicinity of said sealing member for electrically connecting said common electrode to said lead. - View Dependent Claims (8, 10, 12)
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Specification