TOUCH PANEL DEVICE AND USER INTERFACE DEVICE
First Claim
1. A touch panel device including a touch panel having resistive films which have electrode terminals at opposite end portions each and are superimposed top and bottom in a manner that the electrode terminals become orthogonal, wherein the top and bottom resistive films are brought into contact with each other by pushing a resistive film surface by touch input, the touch panel device comprising:
- a coordinate detecting section for detecting coordinates of a touch position from voltage values between the electrode terminals and the touch position at which the resistive films make contact top and bottom in response to the touch input onto the touch panel;
an inter-opposite-terminal resistance measuring section for measuring resistance values between the opposite electrode terminals of the top and bottom resistive films;
a two-point touch deciding section for making a decision as to whether two points on the touch panel are touched or not from the resistance values between the opposite electrode terminals measured by the inter-opposite-terminal resistance measuring section; and
a point-to-point distance detecting section for detecting, when the two-point touch deciding section decides that the two points are touched, the distance between the two points touched from the resistance values between the opposite electrode terminals measured by the inter-opposite-terminal resistance measuring section.
1 Assignment
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Accused Products
Abstract
An analog touch panel device capable of utilizing a two-point touch on a touch panel as meaningful information input and a user interface device employing the analog touch panel device are provided. A decision is made as to whether two points are touched or not on a touch panel TP having resistive films which have electrode terminals at opposite end portions each and are superimposed top and bottom in such a manner that the electrode terminals become orthogonal, in which the top and bottom resistive films are brought into contact with each other by a push of a resistive film surface by touch input. The decision is made according to resistance values between the opposite terminals, and when a decision is made that the two points are touched, the distance between the two points touched is detected according to the resistance values between the opposite terminals.
85 Citations
6 Claims
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1. A touch panel device including a touch panel having resistive films which have electrode terminals at opposite end portions each and are superimposed top and bottom in a manner that the electrode terminals become orthogonal, wherein the top and bottom resistive films are brought into contact with each other by pushing a resistive film surface by touch input, the touch panel device comprising:
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a coordinate detecting section for detecting coordinates of a touch position from voltage values between the electrode terminals and the touch position at which the resistive films make contact top and bottom in response to the touch input onto the touch panel; an inter-opposite-terminal resistance measuring section for measuring resistance values between the opposite electrode terminals of the top and bottom resistive films; a two-point touch deciding section for making a decision as to whether two points on the touch panel are touched or not from the resistance values between the opposite electrode terminals measured by the inter-opposite-terminal resistance measuring section; and a point-to-point distance detecting section for detecting, when the two-point touch deciding section decides that the two points are touched, the distance between the two points touched from the resistance values between the opposite electrode terminals measured by the inter-opposite-terminal resistance measuring section. - View Dependent Claims (3, 4, 5, 6)
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2. A touch panel device including a touch panel having resistive films which have electrode terminals at opposite end portions each and are superimposed top and bottom in a manner that the electrode terminals become orthogonal, wherein the top and bottom resistive films are brought into contact with each other by pushing a resistive film surface by touch input, the touch panel device comprising:
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a coordinate detecting section for detecting coordinates of a touch position from voltage values between the electrode terminals and the touch position at which the resistive films make contact top and bottom in response to the touch input onto the touch panel; an inter-orthogonal-terminal resistance measuring section for measuring resistance values between the orthogonal electrode terminals of the top and bottom resistive films; an inter-opposite-terminal resistance measuring section for measuring resistance values between the opposite electrode terminals of the top and bottom resistive films; a two-point touch deciding section for making a decision as to whether two points on the touch panel are touched or not from the resistance values between the orthogonal electrode terminals measured by the inter-orthogonal-terminal resistance measuring section; and a point-to-point distance detecting section for detecting, when the two-point touch deciding section decides that the two points are touched, the distance between the two points touched from the resistance values between the opposite electrode terminals measured by the inter-opposite-terminal resistance measuring section.
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Specification