Touch panel and method for operating the same, and electronic apparatus and method for operating the same
First Claim
Patent Images
1. A touch panel comprising:
- n first line electrodes to which pulses are applied, n being an integer of 2 or greater;
m second line electrodes for use in detection, m being an integer of 2 or greater, the second line electrodes being arranged to cross the first line electrodes; and
a pulse generating circuit configured (i) to be able to apply pulses in a selected order to n1 first line electrodes selected from among the n first line electrodes, n1 being an integer of at least 1 and not greater than n, and (ii) to be able to apply pulses to all of the n first line electrodes; and
a detecting circuit,wherein,the detecting circuit is configured to detect a touched position on the touch panel by detecting a change in capacitance between one of the first line electrodes and one of the second line electrodes,the touch panel is configured to be switched between a first mode in which the pulses are applied in the selected order to the selected n1 first line electrodes, where 1≦
n1<
n, and a second mode in which the pulses are applied to all of the n first line electrodes,the touch panel operates in the first mode during standby, andthe touch panel is switched from the first mode to the second mode at least when a touch is detected once within a predetermined time limit and a duration of the touch exceeds the predetermined time limit.
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Accused Products
Abstract
A touch panel includes n first line electrodes (n is an integer of 2 or greater) to which pulses are applied, m second line electrodes (m is an integer of 2 or greater) for use in detection, the second line electrodes being arranged to cross the first line electrodes, and a pulse generating circuit configured to apply pulses, in a selected order, to n1 first line electrodes (n1 is an integer of at least 1 and not greater than n) selected from among the n first line electrodes. A touched position on the touch panel is detected by detecting a change in capacitance between one of the first line electrodes and one of the second line electrodes.
5 Citations
20 Claims
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1. A touch panel comprising:
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n first line electrodes to which pulses are applied, n being an integer of 2 or greater; m second line electrodes for use in detection, m being an integer of 2 or greater, the second line electrodes being arranged to cross the first line electrodes; and a pulse generating circuit configured (i) to be able to apply pulses in a selected order to n1 first line electrodes selected from among the n first line electrodes, n1 being an integer of at least 1 and not greater than n, and (ii) to be able to apply pulses to all of the n first line electrodes; and a detecting circuit, wherein, the detecting circuit is configured to detect a touched position on the touch panel by detecting a change in capacitance between one of the first line electrodes and one of the second line electrodes, the touch panel is configured to be switched between a first mode in which the pulses are applied in the selected order to the selected n1 first line electrodes, where 1≦
n1<
n, and a second mode in which the pulses are applied to all of the n first line electrodes,the touch panel operates in the first mode during standby, and the touch panel is switched from the first mode to the second mode at least when a touch is detected once within a predetermined time limit and a duration of the touch exceeds the predetermined time limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for operating a touch panel, the touch panel (i) including n first line electrodes to which pulses are applied, n being an integer of 2 or greater and m second line electrodes for use in detection, m being an integer of 2 or greater, the second line electrodes being arranged to cross the first line electrodes, and (ii) configured to detect a touched position on the touch panel by detecting a change in capacitance between one of the first line electrodes and one of the second line electrodes, the method comprising:
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operating the touch panel in a first mode in which pulses are applied, in a selected order, to n1 first line electrodes selected from among the n first line electrodes, n1 being an integer of at least 1 and not greater than n; and operating the touch panel in a second mode in which pulses are applied to all of the n first line electrodes, wherein, operating the touch panel in the first mode includes operating the touch panel in the first mode during standby, and the method further comprises switching the touch panel from the first mode to the second mode at least when a touch is detected once within a predetermined time limit and a duration of the touch exceeds the predetermined time limit. - View Dependent Claims (16)
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17. An electronic apparatus comprising:
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a touch panel, the touch panel including; n first line electrodes to which pulses are applied, n being an integer of 2 or greater, m second line electrodes for use in detection, m being an integer of 2 or greater, the second line electrodes being arranged to cross the first line electrodes, and a pulse generating circuit configured (i) to be able to apply pulses in a selected order to n1 first line electrodes selected from among the n first line electrodes, n1 being an integer of at least 1 and not greater than n, and (ii) to be able to apply pulses to all of the n first line electrodes, and a detecting circuit, wherein, the detecting circuit is configured to detect a touched position on the touch panel by detecting a change in capacitance between one of the first line electrodes and one of the second line electrodes, the touch panel is configured to be switched between a first mode in which the pulses are applied in the selected order to the selected n1 first line electrodes, where 1≦
n1<
n, and a second mode in which the pulses are applied to all of the n first line electrodes,the touch panel operates in the first mode during standby, and the touch panel is switched from the first mode to the second mode at least when a touch is detected once within a predetermined time limit and a duration of the touch exceeds the predetermined time limit. - View Dependent Claims (18)
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19. A method for operating an electronic apparatus including a touch panel, the touch panel (i) including n first line electrodes to which pulses are applied, n being an integer of 2 or greater and m second line electrodes for use in detection, m being an integer of 2 or greater, the second line electrodes being arranged to cross the first line electrodes, and (ii) configured to detect a touched position on the touch panel by detecting a change in capacitance between one of the first line electrodes and one of the second line electrodes, the method comprising:
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operating the touch panel in a first mode in which pulses are applied, in a selected order, to n1 first line electrodes selected from among the n first line electrodes, n1 being an integer of at least 1 and not greater than n; and operating the touch panel in a second mode in which pulses are applied to all of the n first line electrodes, wherein, operating the touch panel in the first mode includes operating the touch panel in the first mode during standby, and the method further comprises switching the touch panel from the first mode to the second mode at least when a touch is detected once within a predetermined time limit and a duration of the touch exceeds the predetermined time limit. - View Dependent Claims (20)
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Specification