On-screen input image display system
First Claim
1. A non-screen input imaged is play system comprising a touch sensor for detecting coordinates of a touch position on a display screen of a display device,the touch sensor being disposed on the display screen of the display device and comprising a plurality of X coordinate electrodes and a plurality of Y coordinate electrodes arranged so as to cross the plurality of X coordinate electrodes via an insulator layer, both for detecting a change in capacitance due to pressing,the on-screen input image display system comprising:
- a detection circuit for detecting a change in capacitance between the plurality of X coordinate electrodes and the plurality of Y coordinate electrodes of the touch sensor;
an analog to digital converter for converting a detection output of the detection circuit into digital data;
a touch panel control circuit for determining a touched coordinate point;
a main control circuit for receiving touch coordinate data from the touch panel control circuit and for controlling the on-screen input image display system; and
a display control circuit for controlling display on the display device,wherein the main control circuit judges occurrence of a user'"'"'s touch and coordinates of the occurrence from the touch coordinate data, and supplies a display signal corresponding to the judged coordinates to the display device via the display control circuit.
6 Assignments
0 Petitions
Accused Products
Abstract
Provided is a capacitance coupling type on-screen input image display device that enables multipoint detection in a short period of time. The on-screen input image display device includes: a detection circuit (4) for detecting a change in capacitance between the plurality of X coordinate electrodes and the plurality of Y coordinate electrodes of the touch sensor (3); a touch panel control circuit (6) for determining a touched coordinate point; and a main control circuit (7) for receiving touch coordinate data from the touch panel control circuit (6). The main control circuit (7) judges occurrence of a user'"'"'s touch and coordinates of the occurrence from the touch coordinate data, and supplies a display signal corresponding to the judged coordinates to the display device (1) via the display control circuit (2), whereby the display signal is reflected on the display.
47 Citations
7 Claims
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1. A non-screen input imaged is play system comprising a touch sensor for detecting coordinates of a touch position on a display screen of a display device,
the touch sensor being disposed on the display screen of the display device and comprising a plurality of X coordinate electrodes and a plurality of Y coordinate electrodes arranged so as to cross the plurality of X coordinate electrodes via an insulator layer, both for detecting a change in capacitance due to pressing, the on-screen input image display system comprising: -
a detection circuit for detecting a change in capacitance between the plurality of X coordinate electrodes and the plurality of Y coordinate electrodes of the touch sensor; an analog to digital converter for converting a detection output of the detection circuit into digital data; a touch panel control circuit for determining a touched coordinate point; a main control circuit for receiving touch coordinate data from the touch panel control circuit and for controlling the on-screen input image display system; and a display control circuit for controlling display on the display device, wherein the main control circuit judges occurrence of a user'"'"'s touch and coordinates of the occurrence from the touch coordinate data, and supplies a display signal corresponding to the judged coordinates to the display device via the display control circuit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An on-screen input image display system comprising a touch sensor for detecting coordinates of a touch position on a display screen of a display device,
the touch sensor being disposed on the display screen of the display device and comprising a plurality of X coordinate electrodes and a plurality of Y coordinate electrodes arranged so as to cross the plurality of X coordinate electrodes via an insulator layer, both for detecting a change in capacitance due to pressing, the on-screen input image display system being configured to: -
detect, in a first period, an X coordinate electrode and a Y coordinate electrode, in which capacitance changes; determine, in a second period, a combination of the detected X coordinate electrode and Y coordinate electrode; and output coordinates of the touch position based on a result of the determination.
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Specification