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Resistance type touching control panel controller structure and method for discriminating and operating multi-point coordinates

A touch panel and controller technology, applied in the fields of instruments, computing, electrical and digital data processing, etc., can solve problems such as inability to achieve multi-touch, and achieve the effect of reducing the structure

Inactive Publication Date: 2012-04-18
J TOUCH CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The existing resistive touch panel is driven by a pair of 0-5V voltages. When the resistive touch panel is touched, a voltage drop will occur due to the conduction of the loop, and the ( X, Y axis) coordinates, and this control method can only do a single touch, and cannot achieve multi-touch. The present invention proposes a method and structure for implementing multi-touch on a resistive touch panel. , can effectively solve the existing technical problems

Method used

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  • Resistance type touching control panel controller structure and method for discriminating and operating multi-point coordinates
  • Resistance type touching control panel controller structure and method for discriminating and operating multi-point coordinates
  • Resistance type touching control panel controller structure and method for discriminating and operating multi-point coordinates

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Embodiment Construction

[0028] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0029] see Figure 1A , Figure 1B , Figure 1C As shown, it is a schematic diagram of the method of calculating new coordinates according to the historical coordinates of the present invention, wherein the historical coordinates refer to the positions of the contact points retained on the touch panel, and the method of calculating new coordinates by using the historical coordinates to generate multiple points The coordinates are output on the resistive panel, and its operation principle is as follows:

[0030] in Figure 1A For the first point position of the touch panel, if the first point P1 remains in the touched state, the historical coordinates are formed.

[0031] in Figure 1B When the first point position on the touch panel remains in the touch state, the second point touch position is generate...

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Abstract

The invention discloses a controller framework applied to a resistance type touch panel and a coordinate method for calculating and judging multi-touch. The method comprises the steps as follows: providing a resistance type touch panel; according to a contact time difference between a first contact body and at least a second contact body which is in separate contact with the resistance type touchpanel, determining a contact order of the first contact body and the second contact body, and determining a first contact coordinate and at least a middle point coordinate in sequence through a voltage value sensed by the resistance type touch panel, wherein the first contact body is in continuous contact with the resistance type touch panel; determining at least a second contact coordinate in sequence according to the first contact coordinate and the middle point coordinate, wherein the middle point coordinate and the second contact body have the same quantity as the second contact coordinate.

Description

technical field [0001] The present invention relates to a structure of a resistive touch panel controller and a method for computing and judging multi-touch, in particular to a method of calculating new coordinates through the position of historical coordinates to generate multi-point coordinates, and then output them in on the display to form a function that can perform multi-touch. Background technique [0002] Touch panels originated in the 1970s and were developed by the U.S. military for military use. In the 1980s, the technology was transferred to civilian use, and then developed into various uses. Traditional electronic computing devices (such as computers) use peripheral devices such as keyboards or mice as input interfaces. However, these peripheral input devices are too large and difficult to carry, which is likely to cause a major obstacle to the thinning of electronic products. Due to the demand for thinner electronic devices, touch panels are gradually becoming...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/045
Inventor 叶奉治
Owner J TOUCH CORPORATION
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