Display device using low capacitance bus lines having gate lines and data lines on different substrates
First Claim
1. A display device, comprising:
- a first substrate and a second substrate spaced apart from each other, defining a cell gap therebetween;
a liquid crystal layer disposed in the cell gap between the first substrate and the second substrate and having liquid crystal molecules, the liquid crystal layer defining a plurality of pixels;
a first structure disposed on the first substrate facing the liquid crystal layer, wherein the first structure comprises;
a semiconductor layer disposed on the first substrate;
an electrode layer disposed on the semiconductor layer to form a plurality of data lines, a plurality of source electrodes and a plurality of drain electrodes for the plurality of pixels, wherein in each pixel, the source electrode is electrically connected to a corresponding one of the data lines;
a gate insulator layer disposed on the first substrate covering the semiconductor layer; and
a first transparent conductive layer disposed on the gate insulator layer to form a plurality of pixel electrodes for the plurality of pixels, wherein in each pixel, the pixel electrode is electrically connected to the drain electrode;
a second structure disposed on the second substrate facing the liquid crystal layer, wherein the second structure comprises;
a plurality of photo spacers disposed on the second substrate and extended toward the first structure; and
a plurality of gate lines respectively disposed on the second substrate; and
a plurality of gate electrodes, each corresponding to one of the plurality of pixels and disposed on a corresponding photo spacer of the corresponding pixel, directly contacting the gate insulator layer and facing the semiconductor layer of the first structure, wherein in each pixel, the corresponding gate electrode is electrically connected to a corresponding one of the gate lines;
wherein the data lines of the first structure and the gate lines of the second structure are spaced apart by the gate insulator layer and the liquid crystal layer.
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Accused Products
Abstract
A display device using low capacitance bus lines having gate lines and data lines on different substrates. The display device includes a first substrate and a second substrate spaced apart from each other, and a liquid crystal layer is disposed in the cell gap between the first substrate and the second substrate. The data lines of the display device are formed on the first substrate, and the gate lines of the display device are formed on the second substrate. The data lines formed on the first substrate and the gate lines formed on the second substrate are spaced apart by a gate insulator layer and the liquid crystal layer, which increases the gap distance between the data lines and the gate lines. Accordingly, a cross capacitance between each of the data lines and each of the gate lines can be reduced.
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Citations
20 Claims
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1. A display device, comprising:
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a first substrate and a second substrate spaced apart from each other, defining a cell gap therebetween; a liquid crystal layer disposed in the cell gap between the first substrate and the second substrate and having liquid crystal molecules, the liquid crystal layer defining a plurality of pixels; a first structure disposed on the first substrate facing the liquid crystal layer, wherein the first structure comprises; a semiconductor layer disposed on the first substrate; an electrode layer disposed on the semiconductor layer to form a plurality of data lines, a plurality of source electrodes and a plurality of drain electrodes for the plurality of pixels, wherein in each pixel, the source electrode is electrically connected to a corresponding one of the data lines; a gate insulator layer disposed on the first substrate covering the semiconductor layer; and a first transparent conductive layer disposed on the gate insulator layer to form a plurality of pixel electrodes for the plurality of pixels, wherein in each pixel, the pixel electrode is electrically connected to the drain electrode; a second structure disposed on the second substrate facing the liquid crystal layer, wherein the second structure comprises; a plurality of photo spacers disposed on the second substrate and extended toward the first structure; and a plurality of gate lines respectively disposed on the second substrate; and a plurality of gate electrodes, each corresponding to one of the plurality of pixels and disposed on a corresponding photo spacer of the corresponding pixel, directly contacting the gate insulator layer and facing the semiconductor layer of the first structure, wherein in each pixel, the corresponding gate electrode is electrically connected to a corresponding one of the gate lines; wherein the data lines of the first structure and the gate lines of the second structure are spaced apart by the gate insulator layer and the liquid crystal layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for forming a display device, comprising:
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forming a first structure on a first substrate by; disposing a semiconductor layer on a first substrate; disposing an electrode layer on the semiconductor layer to form a plurality of data lines, a plurality of source electrodes and a plurality of drain electrodes for a plurality of pixels of the display device, wherein in each pixel, the source electrode is electrically connected to a corresponding one of the data lines; disposing a gate insulator layer on the first substrate covering the semiconductor layer; and disposing a first transparent conductive layer on the gate insulator layer to form a plurality of pixel electrodes for the plurality of pixels, wherein in each pixel, the pixel electrode is electrically connected to the drain electrode; forming a second structure on a second substrate by; disposing a plurality of photo spacers on the second substrate; and forming a plurality of gate lines on the second substrate; forming a plurality of gate electrodes on the photo spacers, each of the gate electrodes corresponding to one of the plurality of pixels and disposed on a corresponding photo spacer of the corresponding pixel, wherein in each pixel, the corresponding gate electrode is electrically connected to a corresponding one of the gate lines; positioning the first structure and the second structure to define a cell gap therebetween, wherein each of the gate electrodes is positioned to directly contact the gate insulator layer and face the semiconductor layer of the first structure; and forming a liquid crystal layer having liquid crystal molecules in the cell gap, wherein the data lines of the first structure and the gate lines of the second structure are spaced apart by the gate insulator layer and the liquid crystal layer. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A display device, comprising:
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a first substrate and a second substrate spaced apart from each other, defining a cell gap therebetween; a liquid crystal layer disposed in the cell gap between the first substrate and the second substrate and having liquid crystal molecules, the liquid crystal layer defining a plurality of pixels; a plurality of data lines formed on the first substrate and extending along a first planar direction, each electrically connected to a source electrode of a transistor of each of the plurality of pixels; a plurality of gate lines formed on the second substrate and extending along a second planar direction substantially perpendicular to the first planar direction, each electrically connected to a gate electrode of the transistor of each of the plurality of pixels; and a gate driver configured to provide gate signals to the plurality of gate lines; wherein the data lines formed on the first substrate and the gate lines formed on the second substrate are spaced apart by a gate insulator layer and the liquid crystal layer along a third direction substantially perpendicular to the first planar direction and the second planar direction. - View Dependent Claims (18, 19, 20)
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Specification