LIQUID CRYSTAL DISPALY DEVICE WITH TOUCH SCREEN
First Claim
Patent Images
1. A liquid crystal display device with a touch screen comprising:
- a first substrate;
a second substrate disposed in front of the first substrate; and
liquid crystal material sandwiched between the first and second substrates,wherein the second substrate has a transparent conductive layer on the front-side surface, andthe transparent conductive layer is a transparent electrode of the capacitive touch screen.
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Abstract
The invention provides a liquid crystal display device with a touch screen that does not reduce light transmittance but achieves cost reduction. The liquid crystal display device has liquid crystal material sandwiched between a first substrate and a second substrate. The second substrate has a planar transparent conductive layer on the front side. The transparent conductive layer is used as a transparent electrode of the capacitive touch screen. The transparent conductive layer is shaped to have four corners, and alternating voltage for position detection is supplied to each of the four corners.
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Citations
15 Claims
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1. A liquid crystal display device with a touch screen comprising:
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a first substrate; a second substrate disposed in front of the first substrate; and liquid crystal material sandwiched between the first and second substrates, wherein the second substrate has a transparent conductive layer on the front-side surface, and the transparent conductive layer is a transparent electrode of the capacitive touch screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A liquid crystal display device with a touch screen comprising:
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a first substrate; a second substrate disposed in front of the first substrate; and liquid crystal material sandwiched between the first and second substrates, wherein the second substrate has a transparent conductive layer on the front-side surface, and a polarizer plate disposed on the transparent conductive layer, and the transparent conductive layer is used as a transparent electrode of the capacitive touch screen. - View Dependent Claims (14, 15)
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Specification