Object positioning detection machine of touch control plate
A detector and touch panel technology, which is applied in the input/output process of instruments, data processing, electrical digital data processing, etc. Ease of manufacturing and assembly procedures, reducing demand
Inactive Publication Date: 2008-12-17
ELAN MICROELECTRONICS CORPORATION
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[0006] However, the above existing object positioning detectors for touch panels have the following defects: this object positioning detector must use two sets of vertically intersecting capacitive sensing elements to perform two-dimensional positioning, so it cannot effectively reduce the correlation The use of component materials, moreover, the production and assembly procedures of two sets of vertically intersecting capacitive sensing components are also a bit complicated
It can be seen that the above-mentioned existing object positioning detector of the touch panel obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently.
In order to solve the problems existing in the object positioning detector of the touch panel, relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and there is no suitable structure for general products. To solve the above problems, this is obviously a problem that the relevant industry is eager to solve
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[0036] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation and structure of the object positioning detector for the touch panel proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , features and their effects are described in detail below.
[0037] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. For convenience of description, in the following embodiments, the same elements are denoted by the same numbers.
[0038] see figure 2 As shown in FIG. 1 , it is a schematic diagram of an object positioning detector for a two-dimensional touch panel composed of one-dimensional capacitive sensing elements according to the fir...
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The invention relates to an object positioning detector of a touch pad, which is characterized in that the object positioning detector is provided with at least one capacitive sensing element group, the capacitive sensing element group comprises two adjacent capacitive sensing elements, and the capacitive sensing element group is arranged along an axial direction so as to allow one capacitive sensing element to gradually increase the capacitance value in a gradient manner along the axial direction, and allow the other capacitive sensing element to gradually decrease the capacitance value in a gradient manner along the axial direction. In the object positioning detector, the object position of the two-dimensional touch pad can be detected by adopting the one-dimensional capacitive sensing elements, and thereby the object positioning detector is very practical.
Description
technical field [0001] The invention relates to an object positioning detector for a touch panel, in particular to an object positioning detector using a one-dimensional capacitive sensing element to form a two-dimensional touch panel. Background technique [0002] Touch screens are used in a wide range of applications, such as visitor guidance systems, automatic teller machines, point-of-sale terminals, industrial control systems, etc. The market is growing because of the interface's ease of use, durability, and low cost. [0003] Touch screens can be divided into three types according to the physical principle of detecting touch points: resistive screens, which generate voltage when lightly pressed with a finger or other contacts; capacitive screens, where fingers absorb a small current (commonly used in laptop touchpads). As for the third wave screen, the entire surface is covered with sound waves or infrared light, and the standing wave pattern is blocked by fingers or...
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Inventor 黄俊中王尊民林俊佑林泽琦
Owner ELAN MICROELECTRONICS CORPORATION