Touch circuit and touch operation control components
A touch control circuit and controller technology, applied in the direction of electrical digital data processing, instruments, data processing input/output process, etc., can solve the problems of adding conversion chips 4 and increasing costs, and achieve the effect of reducing production costs
Inactive Publication Date: 2015-08-19
GETAC TECH CORP
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Problems solved by technology
If the manufacturer provides different forms of touch panels at the same time, it will inevitably increase the inventory of different types of conversion chips 4, and further increase the cost of production
Method used
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Embodiment Construction
[0085] see figure 2 As shown, it is a touch circuit described in the first embodiment of the present invention, which is used to connect a touch panel 100 and a controller 400, and alternately switch between a first detection state and a second detection state between.
[0086] refer to figure 2 As shown, the touch panel 100 includes at least two first coordinate detection points and at least two second coordinate detection points, such as two X-axis detection points (X+, X-) and two Y-axis detection points (Y+, Y -), two X detection points (X+, X-) and two Y-axis detection points (Y+, Y-) obtained coordinate value reference potential, which can be used to obtain the coordinates on the X-axis and Y-axis respectively, so that Synthesize two-dimensional coordinate values; usually, the X-axis and the Y-axis are two mutually orthogonal axes.
[0087] The touch panel 100 includes an upper conductive layer 110 and a lower conductive layer 120 for receiving a fixed potential dif...
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The invention discloses a touch control circuit and a touch control operation control assembly. The touch control circuit is used for being connected with a touch control panel and a controller and alternately switched between a first detecting state and a second detecting state. The touch control panel comprising an upper conducting layer and a lower conducting layer is used for receiving a fixed potential difference, generating a first coordinate value when being in the first detecting state and being touched, generating a second coordinate value when being in the second detecting state and being touched, and transmitting the first coordinate value and the second coordinate value to the controller to synthesize a coordinate of a contact point. The touch control circuit comprises at least one first switching module and at least one second switching module. The first switching module and the second switching module are respectively electrically coupled to the touch control panel through a first signal feeding end and a second signal feeding end so as to alternately receive the fixed potential difference or output the first or second coordinate value. Without being matched with a pin capable of outputting and inputting signals, the touch control circuit can be directly matched with the controller with a relatively simple function to use.
Description
technical field [0001] The present invention relates to a touch panel, and in particular to a touch circuit and a touch operation control component that do not need to use GPIO. Background technique [0002] see figure 1 As shown, it is a four-wire touch panel of known technology, which is the most common structure of resistive touch panel. The four-wire touch panel mainly includes an upper structure 1 and a lower structure 2, which are respectively used to detect touch actions in the X-axis and Y-axis directions. [0003] refer to figure 1 As shown, the upper structure 1 and the lower structure 2 are respectively a transparent conductive film and a transparent conductive substrate, such as a combination of indium tin oxide conductive film (ITO Film) and indium tin oxide conductive glass (ITO Glass). The upper structure 1 is used for being touched by a user to make it deform and contact the lower structure 2 . A spacer (Spacer) is provided between the upper structure 1 a...
Claims
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IPC IPC(8): G06F3/045
Inventor 游世豪
Owner GETAC TECH CORP