Touch screen display apparatus
First Claim
1. A touch screen display apparatus, comprising a touch structure, wherein the touch structure comprises:
- multiple driving lines arranged in a column direction,multiple sensing lines arranged in a row direction,a preamplifier,a frequency outputter,a first shift register, anda second shift register, wherein the frequency outputter is configured to output a driving signal at a predetermined frequency, wherein the first shift register is configured to output the driving signal to each driving line, wherein the second shift register is configured to output a sensing signal from each sensing line to the preamplifier, and wherein the preamplifier is configured to output an amplified sensing signal based on the sensing signal from the second shift register;
wherein M first selection switches are connected in parallel between each driving line and an input driving signal bus bar, and wherein the first selection switches each have a first end connected to the driving line, a second end connected to the input driving signal bus bar, and a control end connected to output ends of the first shift register, wherein M is an integer of 2 or above; and
/orwherein P second selection switches are connected in parallel between each sensing line and an output data bus bar, and wherein the second selection switches each have a first end connected to the sensing line and a second end connected to the output data bus bar, and a control end connected to output ends of the second shift register, wherein P is an integer of 2 or above.
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Abstract
The present invention provides a touch screen display apparatus including a touch structure. The touch structure includes multiple driving lines arranged in a column direction, multiple sensing lines arranged in a row direction, a preamplifier, a frequency outputter, a first shift register, and a second shift register. The first shift register is arranged between the driving lines and the frequency outputter, and the second shift register is arranged at output ends of the sensing lines. Each driving line outputs a driving signal and each sensing line outputs a sensing signal for the preamplifier. Accordingly, a single preamplifier may be used.
3 Citations
14 Claims
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1. A touch screen display apparatus, comprising a touch structure, wherein the touch structure comprises:
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multiple driving lines arranged in a column direction, multiple sensing lines arranged in a row direction, a preamplifier, a frequency outputter, a first shift register, and a second shift register, wherein the frequency outputter is configured to output a driving signal at a predetermined frequency, wherein the first shift register is configured to output the driving signal to each driving line, wherein the second shift register is configured to output a sensing signal from each sensing line to the preamplifier, and wherein the preamplifier is configured to output an amplified sensing signal based on the sensing signal from the second shift register; wherein M first selection switches are connected in parallel between each driving line and an input driving signal bus bar, and wherein the first selection switches each have a first end connected to the driving line, a second end connected to the input driving signal bus bar, and a control end connected to output ends of the first shift register, wherein M is an integer of 2 or above; and
/orwherein P second selection switches are connected in parallel between each sensing line and an output data bus bar, and wherein the second selection switches each have a first end connected to the sensing line and a second end connected to the output data bus bar, and a control end connected to output ends of the second shift register, wherein P is an integer of 2 or above. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A touch screen display apparatus, comprising:
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a plurality of driving lines arranged in a column direction; a plurality of sensing lines arranged in a row direction; a preamplifier; a frequency outputter; a first shift register; a plurality of first selection switches; a second shift register; and a plurality of second selection switches, wherein the frequency outputter is configured to output a driving signal at a predetermined frequency, wherein the first selection switches are configured to output the driving signal to each driving line according to an output of the first shift register, wherein the second selection switches are configured to output a sensing signal from each sensing line to the preamplifier according to an output of the second shift register, and wherein the preamplifier is configured to output an amplified sensing signal based on the sensing signal from the second selection switches; wherein M first selection switches are connected in parallel between each driving line and an input driving signal bus bar, and wherein the first selection switches each have a first end connected to the driving line, a second end connected to the input driving signal bus bar, and a control end connected to output ends of the first shift register, wherein M is an integer of 2 or above; and
/orwherein P second selection switches are connected in parallel between each sensing line and an output data bus bar, and wherein the second selection switches each have a first end connected to the sensing line and a second end connected to the output data bus bar, and a control end connected to output ends of the second shift register, wherein P is an integer of 2 or above. - View Dependent Claims (13, 14)
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Specification