TOUCH DETECTING APPARATUS AND TOUCH DETECTING METHOD USING PIXEL OR PIXELS IN DISPLAY DEVICES
First Claim
1. A touch detecting apparatus using a pixel or pixels in display devices, comprising:
- a grayscale voltage generator configured to generate a first grayscale voltage applied to the pixel or the pixels in the display devices; and
a sensing signal processor configured to detect a touch signal based on a second grayscale voltage fed back from the pixel and a preset reference value.
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Accused Products
Abstract
Disclosed herein are a touch detecting apparatus and a touch detecting method using a pixel or pixels in display devices including a means for applying an AC input voltage to a drive IC of the display device and detecting a change in touch capacitance between the pixel and an object in synchronization with a change in amplitude of the AC input voltage. In particular, the touch detecting apparatus using a pixel or pixels in display devices according to an exemplary embodiment of the present invention includes: a grayscale voltage generator applying a grayscale voltage to a source line and a sensing signal processor detecting a touch signal based on a feedback voltage of the grayscale voltage applied to the source line.
11 Citations
20 Claims
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1. A touch detecting apparatus using a pixel or pixels in display devices, comprising:
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a grayscale voltage generator configured to generate a first grayscale voltage applied to the pixel or the pixels in the display devices; and a sensing signal processor configured to detect a touch signal based on a second grayscale voltage fed back from the pixel and a preset reference value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A touch detecting method using a pixel or pixels in display devices, comprising:
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generating a first grayscale voltage applied to the pixel or the pixels in the display devices; and detecting a touch signal based on a second grayscale voltage fed back from the pixel and a preset reference value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification