TOUCH SENSING CONTROLLER, TOUCH SENSING DEVICE AND TOUCH SENSING SYSTEM INCLUDING THE SAME
First Claim
1. A touch sensing device, comprising:
- a touch panel configured to generate a first receiving signal, a second receiving signal, and a third receiving signal corresponding to a touch occurring at the touch sensing device;
a receiving unit connected to the touch panel through a first receiving line, a second receiving line, and a third receiving line, wherein the receiving unit receives the first receiving signal, the second receiving signal, and the third receiving signal through the first receiving line, the second receiving line, and the third receiving line, respectively,wherein the receiving unit further comprises a differential signal generator,wherein the differential signal generator is configured to exclude a first common signal common to the first receiving signal and the second receiving signal from each of the first receiving signal and the second receiving signal to generate first differential signals when a first touch sensing operation is performed,wherein the differential signal generator is configured to exclude a second common signal common to the second receiving signal and the third receiving signal from each of the second receiving signal and the third receiving signal to generate second differential signals when a second touch sensing operation is performed.
1 Assignment
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Accused Products
Abstract
A touch sensing device includes a touch panel and a receiving unit. The touch panel generates first to third receiving signals corresponding to a touch occurring at the touch sensing device. The receiving unit is connected to the touch panel through first to third receiving lines to receive the first to third receiving signals through the first to third receiving lines, respectively. The receiving unit includes a differential signal generator for excluding a first common signal common to the first and second receiving signals from each of the first and second receiving signals to generate first differential signals when a first touch sensing operation is performed. The differential signal generator excludes a second common signal common to the second and third receiving signals from each of the second and third receiving signals to generate second differential signals when a second touch sensing operation is performed.
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Citations
20 Claims
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1. A touch sensing device, comprising:
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a touch panel configured to generate a first receiving signal, a second receiving signal, and a third receiving signal corresponding to a touch occurring at the touch sensing device; a receiving unit connected to the touch panel through a first receiving line, a second receiving line, and a third receiving line, wherein the receiving unit receives the first receiving signal, the second receiving signal, and the third receiving signal through the first receiving line, the second receiving line, and the third receiving line, respectively, wherein the receiving unit further comprises a differential signal generator, wherein the differential signal generator is configured to exclude a first common signal common to the first receiving signal and the second receiving signal from each of the first receiving signal and the second receiving signal to generate first differential signals when a first touch sensing operation is performed, wherein the differential signal generator is configured to exclude a second common signal common to the second receiving signal and the third receiving signal from each of the second receiving signal and the third receiving signal to generate second differential signals when a second touch sensing operation is performed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A touch sensing system for driving a touch panel, comprising:
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a transmitting unit connected to driving lines in the touch panel to provide driving signals; a receiving unit including a differential signal generator connected to receiving lines in the touch panel to respectively receive receiving signals generated by the driving signals, wherein the receiving unit is configured to generate differential signals among the receiving signals; and a touch sensing controller configured to control a timing of the driving signals and a generation of the differential signals. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A touch sensing system for driving a touch panel, comprising:
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a transmitting unit for providing first signals to the touch panel; and a receiving unit for receiving second signals generated by the touch panel in response to the first signals, wherein the receiving unit includes a differential signal generator configured to generate a first differential signal from a first pair of the second signals. - View Dependent Claims (17, 18, 19, 20)
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Specification