TOUCH SCREEN AND METHOD FOR CONTROLLING THE SAME
First Claim
1. A touch screen, comprising:
- two sheets of transparent substrates;
transparent electrodes each formed on one surface of the two sheets of transparent substrates and sensing the change in capacitance at the time of a user input; and
a spacer bonding one surface of the two sheets of transparent substrates to each other,wherein the coordinates of the input are measured by detecting the change in capacitance sensed by the transparent electrodes and lowering sensitivity when the capacitance becomes larger.
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Accused Products
Abstract
Disclosed herein are a touch screen and a method for controlling the same. The touch screen includes: two sheets of transparent substrates; transparent electrodes each formed on one surface of the two sheets of transparent substrates and sensing the change in capacitance at the time of a user input; and a spacer bonding one surface of the two sheets of transparent substrates to each other, wherein the coordinates of the input are measured by detecting the change in capacitance sensed by the transparent electrodes and lowering sensitivity when the capacitance becomes larger. The embodiments provide the touch screen that can accurately measure the coordinates by controlling the sensitivity based on the change in capacitance, and the method for controlling the same.
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Citations
7 Claims
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1. A touch screen, comprising:
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two sheets of transparent substrates; transparent electrodes each formed on one surface of the two sheets of transparent substrates and sensing the change in capacitance at the time of a user input; and a spacer bonding one surface of the two sheets of transparent substrates to each other, wherein the coordinates of the input are measured by detecting the change in capacitance sensed by the transparent electrodes and lowering sensitivity when the capacitance becomes larger. - View Dependent Claims (2, 3, 4)
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5. A method for controlling a capacitive touch screen, comprising:
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(A) sensing the change in capacitance of the touch screen when there is a user input; (B) measuring coordinates of the input by lowering sensitivity of the touch screen when the sensed capacitance becomes larger; and (C) repeating steps (A) and (B) and measuring the coordinates of the input when the user input contacts the surface of the touch screen. - View Dependent Claims (6, 7)
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Specification