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Resistance-type touch panel and method for detecting contact point form thereof

A technology of a touch panel and a detection method, which are applied in the fields of electrical digital data processing, input/output process of data processing, instruments, etc.

Active Publication Date: 2012-01-11
ASUSTEK COMPUTER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the control circuit will calculate multiple contact points, but the contact points generated by pressing the palm and fingers are not effective contact points

Method used

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  • Resistance-type touch panel and method for detecting contact point form thereof
  • Resistance-type touch panel and method for detecting contact point form thereof
  • Resistance-type touch panel and method for detecting contact point form thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] Please refer to Figure 7A , which is a schematic diagram of using fingers to form contact points. When using the finger 130 to press the touch panel, due to the large contact area, the contact area of ​​the upper and lower strip-shaped ITO layers 112, 102 will be larger; similarly, the contact point generated by the palm (palm) will also make the The upper and lower strip-shaped ITO layers 112, 122 have relatively large contact areas. Also, please refer to Figure 7B , which is a schematic diagram of using the stylus 140 to form contact points. Since the area of ​​the tip of the stylus is small, when the stylus is used to press the touch panel, the contact area of ​​the upper and lower strip-shaped ITO layers will be smaller. And the present invention utilizes this characteristic to judge that the contact point is the contact point of the first form or the contact point of the second form, wherein, the contact point of the first form is a small-area contact point, s...

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PUM

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Abstract

The invention discloses a resistance-type touch panel and a method for detecting a contact point form thereof. The resistance-type touch panel is provided with a plurality of detection areas. The method comprises the following steps: when the production of contact action is discovered on the touch panel, acquiring a plurality of contact point positions; when the contact points are positioned in the adjacent detection areas, judging whether the contact points can be merged into a merged contact point; and when the contact points can be merged into the merged contact point, judging that the merged contact point is a contact point of a first form or a contact point of a second form. The method can quickly judge whether a plurality of contact points can be merged into one merged contact point, and can further differentiate the merged contact point into the contact point of the first form or the contact point of the second form.

Description

technical field [0001] The invention relates to a resistive touch panel and a detection method thereof, in particular to a resistive touch panel and a detection method of a contact point form thereof. Background technique [0002] With the rapid development of computer technology, touch panels are also widely used in mobile phone screens, computer screens, and personal digital assistant (PDA) screens. Basically, a touch panel can be used as an input device of a computer to replace a mouse. Currently, resistive touch panels are most commonly used in touch panels. [0003] Please refer to Figure 1A , which is a side view of a known resistive touch panel. Form a plurality of strip-shaped indium tin oxide (Indium Tin Oxide, ITO for short) layers 102 on the surface of a transparent glass (glass) substrate 100; in addition, form a plurality of strip-shaped ITO layers on the surface of a transparent film (film) 110 112 ; wherein, the striped ITO layer 102 on the transparent gla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/045
Inventor 林洪义
Owner ASUSTEK COMPUTER INC