Touch screen-integrated display device
First Claim
1. A display device having an active area, a non-active area, and a plurality of subpixels at the active area, comprising:
- a gate line and a data line to define a subpixel;
a thin-film transistor in the subpixels;
a passivation layer on the thin-film transistor and having an opening area in the non-active area where the passivation layer is removed;
a signal supply pad in the opening area;
a line pad in the opening area and on a first protective layer covering the signal supply pad;
a second protective layer disposed on the first protective layer and partially covers the line pad;
a pad connection layer disposed on the second protective layer and connecting the line pad through at least one first contact hole where the second protective layer is partially removed and the signal supply pad through at least one second contact hole in the opening area;
a first electrode on the passivation layer and connected to a source electrode of the thin-film transistor through a fourth contact hole, and the first protective layer on the first electrode;
a second electrode on the second protective layer and overlapping the first electrode; and
a touch sensing line in parallel with the data line,wherein the second electrode functions as a touch sensor during a touch mode and functions as a common electrode during a display mode, and the second electrode is formed of the same material as the pad connection layer,wherein the second protective layer is disposed on the touch sensing line disposed on the first protective layer, andwherein a touch connection layer is electrically connected to the touch sensing line through at least one third contact hole where the second protective layer is partially removed.
1 Assignment
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Accused Products
Abstract
There is provided a touch screen-integrated display device. The touch screen-integrated display device includes: a substrate including an active area including a plurality of subpixels and a non-active area; a gate line and a data line to define one subpixel; a thin-film transistor disposed in subpixel; a first electrode electrically connected to a source electrode of the thin-film transistor; and a second electrode disposed to be overlapped with the first electrode with a protective layer interposed therebetween, and further includes a pad connection layer configured to connect the line pad and the signal supply pad in the non-active area. Thus, it is possible to reduce a contact resistance between the signal supply pad and the line pad and also possible to suppress damage to the pad connection layer.
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Citations
18 Claims
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1. A display device having an active area, a non-active area, and a plurality of subpixels at the active area, comprising:
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a gate line and a data line to define a subpixel; a thin-film transistor in the subpixels; a passivation layer on the thin-film transistor and having an opening area in the non-active area where the passivation layer is removed; a signal supply pad in the opening area; a line pad in the opening area and on a first protective layer covering the signal supply pad; a second protective layer disposed on the first protective layer and partially covers the line pad; a pad connection layer disposed on the second protective layer and connecting the line pad through at least one first contact hole where the second protective layer is partially removed and the signal supply pad through at least one second contact hole in the opening area; a first electrode on the passivation layer and connected to a source electrode of the thin-film transistor through a fourth contact hole, and the first protective layer on the first electrode; a second electrode on the second protective layer and overlapping the first electrode; and a touch sensing line in parallel with the data line, wherein the second electrode functions as a touch sensor during a touch mode and functions as a common electrode during a display mode, and the second electrode is formed of the same material as the pad connection layer, wherein the second protective layer is disposed on the touch sensing line disposed on the first protective layer, and wherein a touch connection layer is electrically connected to the touch sensing line through at least one third contact hole where the second protective layer is partially removed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A display device having an active area, a non-active area and a plurality of subpixels at the active area, comprising:
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a gate line and a data line defining each subpixel; a thin-film transistor in the subpixels; a passivation layer on the thin-film transistor; a control signal line pad area at the non-active area where the passivation layer is removed; a signal supply pad and a line pad disposed at the control signal line pad area; a first protective layer covering the signal supply pad; a second protective layer disposed on the first protective layer and partially covers the line pad; a touch sensing line disposed on the first protective layer; a pad connection layer disposed on the second protective layer and connecting the line pad through at least one first contact hole where the second protective layer is partially removed and the signal supply pad through at least one second contact hole; a touch connection layer electrically connected to the touch sensing line through at least one third contact hole where the second protective layer is partially removed; and a gate insulation layer disposed on the signal supply pad and the gate line, wherein the signal supply pad and the line pad are separated from each other by the gate insulation layer and the first protective layer in the control signal pad area at the non-active area, wherein the second protective layer is disposed on the touch sensing line disposed on the first protective layer.
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Specification