TW201115447A - Touch panel compensating apparatus and the method therefor - Google Patents

Abstract

The invention relates to a compensating apparatus of a touch panel for compensating differentiation of a plurality of sensing elements of the touch panel. The compensating apparatus comprises a detecting module, a processing module and a compensating module. The detecting module is used for detecting the plurality of sensing elements of the touch panel respectively and generating a plurality of detecting values correspondingly. The processing module coupled to the detecting module is used for generating a plurality of compensating values corresponding to the plurality of detecting values. The compensating module coupled to the processing module, the touch panel and the detecting module is used for compensating the plurality of sensing elements of the touch panel according to the plurality of compensating values respectively.

Description

201115447, invention description: [Technical field of the invention] The present invention relates to a compensation device and method for a prismatic control panel, in particular, a plurality of senses for complementing a touch panel A compensation device and method for measuring differences between components. [Prior Art] Due to the significant improvement in related technologies of touch sensing in recent years,

It is extremely convenient to use, and a wide variety of touch sensing technologies have been widely used in various electronic products. Among them, the touch panel is widely used in a wide variety of electronic products because of its small size, small size, low cost, low power consumption and long service life. Please refer to the ^ picture, the first! The figure shows a schematic diagram of a control system for a resistive touch panel having multiple sensing elements. Control system I as shown in the figure. There are a total of eight resistive touch panels included: 7L, where the equivalent model between the endpoint X1L and the endpoint X1R, the equivalent model between the point X2L and the end point X2R, The equivalent model between X3R and the equivalent model between the endpoint X4L and the endpoint MR represent four sensing elements arranged in the same plane and in separate X-axis directions, respectively. Equivalent model between point Y 1 端点 to endpoint γ j D , equivalent model between endpoint Υ2υ to endpoint Y2D, equivalent model 1钿Y3 U to endpoint Y3 D, and endpoint 201115447 Y4U The equivalent model between the end points Y4D represents four sensing elements disposed in the same plane and independent of the x-axis directions, wherein the sensing elements in the paraxial direction and the sensing elements in the γ-axis direction are respectively set. Two layers on the top and bottom of the touch panel. When the resistive touch panel 11 is touched, a signal is sent to the microcontroller 14 via the trigger circuit 12 at the rear end to notify the resistive touch panel n that the user is pressed by the user's The control multiplexer 16 performs signal sampling on all of the sensing elements in the X-axis direction and the sensing elements in the γ-axis direction, and quantizes the obtained sampling result via the analog-to-digital converter 18, and transmits the result to the microcontroller 14. As a determination of the pressing position, the actual position of the user operating the touch panel η can be determined. However, the detection method using such a touch panel u must perform signal sampling on all the sensing elements in order to correctly judge the pressing position of the user pressing the touch panel. However, there may be some discrepancies between the sensing elements due to variations in the process or the size of the line resistance. This phenomenon causes the microcontroller 14 at the back end to fail to determine the correct dust position of the user. For example, when the resistance of the sensing device is different, the user may determine the position of the different horizontal lines when the position of the sensing component is different on the same horizontal line as >1. This causes the user to accurately determine the touch position when using the touch panel 1 1 . Therefore, how to provide a compensation device for a touch panel and its method 201115447 > 'can solve the problem of the difference between the plurality of sensing elements of the touch panel in the prior art' correctly judges that the user presses the touch panel The pressing position has become an important issue in the development of touch panels. SUMMARY OF THE INVENTION The purpose of the present invention is to provide a compensation device for a touch panel and a method thereof, which can compensate for a plurality of sensing elements of the touch panel.

In the difference, it is used to improve the accuracy of the touch position determination by the touch panel. - In the difference between the plurality of sensing elements included in the touch panel, (4): the surface compensation device includes a detection module, a processing module, and a compensation module. The detection module is configured to detect the plurality of sensing elements to generate a plurality of sensing values. The processing mode is connected to the UI, and the core group is used to determine a plurality of compensation values according to the plurality of sensing values. The compensation module is coupled to the processing module 'the touch panel and the beta module' for respectively compensating the plurality of sensing elements according to the plurality of compensation values. The present invention further provides a compensation method for the touch panel for compensating for the difference between the plurality of sensing elements included in the touch panel. The compensation method of the touch panel includes: detecting a plurality of "then components" to generate a plurality of corresponding sensing values; (b) finding a plurality of sensing values according to the 201115447 And a compensation corresponding to the plurality of sensing elements according to the plurality of compensations. In order to make the above-mentioned and other objects of the present invention more obvious and easy to understand, the following special advantages are obtained. The preferred embodiments of the month b, , and + are described in detail with reference to the accompanying drawings. [Embodiment] Please refer to FIG. 2, which is a view of the touch panel of the touch panel according to the present invention. The schematic diagram of the touch panel 21 is used to compensate for a plurality of sensing elements J of the touch panel 2 (not shown). In the figure, the compensation device of the touch panel 21 is provided with a detection module 22, a processing module 24, and a compensation t touch panel 2 for use. 13. A plurality of sensing elements are detected to generate a plurality of sensing values Vs. The processing module is connected to the detecting module 22 for determining the value VC according to the plurality of sensing values Vs. The compensating module 26_~, the plurality of compensations, ... the processing module 24, the touch surface and the pre-measurement slack 22 are used to respectively compensate the plurality of sensing elements according to the complex number . C, in the embodiment, 'a plurality of sensings: 22, the plurality of sensing elements are subjected to the second measurement. The module 22 includes -i value-by-value. Debt measurement I is one early and the conversion unit 22" 201115447

The detecting unit 222 is connected to the touch panel 2A for detecting a plurality of sensing elements respectively, and generating a plurality of current values corresponding to each of the sensing elements. The converting unit 224 is coupled to the pilot unit 222 for converting a plurality of current values to a plurality of ink values. In the embodiment, the conversion unit 224 is a current-voltage converter: the processing module 24 includes at least a comparison unit 242 coupled to the detection module 22 and the compensation module 26, and at least one comparison unit is used. Comparing the plurality of sensing values % with the at least one preset value % respectively, generating a plurality of comparison results, and further generating a corresponding plurality of compensation values Vc according to the plurality of comparison results. In one embodiment, at least - comparison unit 242 is a comparator. The compensation module 26 further includes at least one compensation unit, such as lightly connected between the processing module 24 and the touch panel 2A. At least, the compensation unit 262 is configured to respectively perform a plurality of sensing elements according to the plurality of compensation values. Corresponding compensation, so that the multiple senses of each library are relative to each other. The at least one compensation unit 262 includes at least one switch sw and at least _ resistor r, the at least one resistor R Connecting between at least one switch sw and a plurality of sensing elements. At least - opening the sw system for selectively turning on or off the at least one electric power according to the plurality of compensation values to sense the plurality of 70 pieces of the corresponding compensation are measured. Figure 2 and Figure 3 are a schematic diagram of one embodiment of the device for the touch 201115447 panel of the present invention. Figure 2 and Figure 3 In the embodiment, the touch panel 21 is a resistive touch panel, and each of the sensing elements (sensing lines, traces) of the resistive touch panel may be due to process drift. The phenomenon of forming the resistance value, the following is used to explain In the touch panel 2 1 of the present invention, the compensation device 20 and the bean method are practiced, and the plurality of sensing elements of the touch panel 2 1 are compensated, and the first soil/occupancy and μ first detection pull group 22 Will test every feeling

The electric amps are compared with at least one of the preset values VP1 〜Yu by using at least one of the comparison modules A 2421 〜 2424 included in the processing module 24, and then determining each sensation according to the comparison result. The component 佶vn of the measuring component, the first value VC1~, and finally the compensation module 26 according to the compensation values ～II corresponding to at least the switch SW1~ sugar opening or closing, - Step control whether the paths of the at least one resistors R1 R R4 are turned on or off to compensate the sensing elements, that is, complete the compensation operation. In the present embodiment, 'the plurality of comparison units 242丨~ respectively compare the preset values Vpi~Vp4 with different voltage values, and according to the comparison result of each comparison unit 242丨~2424, the control connection is in the rear phase thereof. The corresponding compensation unit A 262 compensates the sensing elements. In this embodiment, the compensation unit 262 is composed of at least a resistor ^ R R4 and at least one switch SW SW SW4, and the comparison results are controllable connections. In the electric 16R1~R4 switch...~201115447 S W4, according to the opening or closing of the switches sw丨~s ψ4, the current paths can be controlled to further control the values for compensating the sensing elements, thus The entire compensation action can be successfully completed. This embodiment is only used to illustrate the operation of the compensation device 2 of the touch panel 21 of the present invention. The comparison units 2421 to 2424, the preset standard values vP1 to vM, the at least one resistors R1 to R4, and at least one switch SW1. The number of the SW4 is not limited to the embodiment, and the number of the components can be determined by the user according to the actual situation. The compensation device 2 of the touch panel 2 of the present invention and the method thereof are used to compensate for the difference of the plurality of sensing elements when the touch panel 21 is started, and the touch panel can be directly used when the compensation is completed. 2 1 touch point detection, not every time need to compensate, and the detection method is to directly use the detection module 22 to determine the value of each of the '1' components, and then according to the actual resistance The value is used to compensate each sensing component. After the compensation of the sensing component of the touch panel 21 is performed, each position of the touch panel 21 will be compensated by the position of the sensor. After the module 26 is compensated, the 丄 丄 由 is determined by the detecting module 22 to determine the precise position, so that the θ 升 'a resistive touch panel 2 丨 can perform the position detection accuracy. In another embodiment, the compensation module 26 has a plurality of complementary 262, which are respectively coupled to the two ends of each sensing element 201115447 of the touch panel 21, and are respectively diced at both ends thereof. The value is compensated for %, so that when the compensation panel 2 1 is compensated, it is confirmed that the touch position of the user pressing the touch panel 2 1 is not determined because the two ends of the same sensing element are The compensation values are inconsistent, and the partial pressure of the J-shou double resistor changes, and the further view > sounds to the correct position.

1. Fig. 4 is a flow chart showing the steps of an embodiment of a method for compensating a touch panel according to the present invention. As shown in FIG. 4, another embodiment of the present invention provides a method for compensating a touch panel for compensating for a difference between a plurality of sensing elements included in the touch panel, and the method for compensating the touch panel includes There are the following steps: Detecting the plurality of sensing elements to generate a corresponding plurality of "values" in the step of detecting the plurality of sensing elements of the plurality of sensing elements, respectively, generating a plurality of currents And further converting the plurality of current values to the plurality of voltage values corresponding to the plurality of compensation values (5): determining, according to the plurality of sensing values, a plurality of compensation values; Firstly, comparing the plurality of sensing values with at least a preset value, and generating a plurality of comparison results, further generating the corresponding complex sensing S 5 4 according to the plurality of comparison results. According to the plurality of silent 1U complements the value, and the corresponding components are respectively compensated. 201115447 In an embodiment, a plurality of sensed values are detected by detecting a plurality of sensing elements, and the obtained In one embodiment, the step is based on the plurality of turns of the complex number, selectively connected or disconnected to the at least one resistor of the plurality of sensing elements, thereby The sensing elements of the present invention are compensated accordingly. The device of the touch panel of the present invention is used to detect the resistance value of each sensing element, and then according to the resistance values. To calculate the difference between each sensing element, determine the compensation value corresponding to the need to compensate. Finally, according to the compensation value, respectively compensate the corresponding sensing element, so that each can be shed into a "" The mother senses the difference between the parts and the other to the same reference point. The use of this method can solve the problem that the touch panel cannot be accurately touched because of the difference between the sensing parts. The problem of controlling the position judgment 'into the step-by-step phase control panel for the touch position = the accuracy of the judgment. In the spirit and scope of the present invention, although the invention has been described above with reference to the preferred embodiments, it is not intended to limit the scope of the present invention. Therefore, the scope of protection of the present invention is defined by the scope of the patent application. [Simple description of the drawing] Fig. 1 is a schematic view showing a manner of generally compensating the display image of the touch panel. 201115447 First intention. 2 is a second embodiment of a compensation device for a touch panel according to the present invention. FIG. 3 is a schematic view of an embodiment of the present invention. One of the compensation devices of the touch panel

4 is a flow chart showing the steps of an embodiment of a method for compensating a touch panel according to the present invention.

11 ' 21 12 14 16 18 20 22 24 26 222 224 242 , 2421~2424 262 SW, SW1 ~ SW4 control system touch panel trigger circuit microcontroller multiplexer analog digital converter compensation device judgment module processing module compensation Module detection unit conversion unit comparison unit compensation unit switch 13 201115447 R, R1 ~ R4 resistance Vs If the measured value Vpi ~ Vp4 preset value Vc, Vci ~ Vc4 compensation value S50 ~ S54 Method steps

14

Claims (1)

201115447 VII. Patent application scope: - A touch panel device for compensating - the difference between the plurality of sensing components included in the touch panel 'The touch panel compensation device comprises: to generate a complex nn μ pair (4) The plurality of sensing elements are configured to perform a plurality of sensing values; and the cores are 'transferred to the edge detecting module to determine a plurality of compensation values according to the plurality of sensing values; and The compensation module is connected to the processing module, the touch panel and the detection module 1 to respectively compensate the plurality of sensing elements according to the plurality of compensation values. 2. The compensation device for a touch panel as described in the above-mentioned application, wherein the plurality of sensing values are a plurality of voltage values detected by the detecting module for the plurality of sensing elements. . Shen. The invention relates to a compensation device for a touch panel according to the item i, wherein the price measurement module includes: ', 7L' on the touch panel for detecting the plurality of sensing π respectively And generating a plurality of current values; and converting the unit to the primary unit for converting the plurality of current values to the plurality of voltage values. 4. The compensation device of the touch panel described in the above-mentioned _ _ 3, wherein the conversion is early-current-electric dust converter. The touch panel compensation device according to claim 1 of the patent application Wherein the 15 201115447 control module includes at least a comparison unit, which is coupled to the price measurement module and the compensation module, wherein the at least-comparison unit is configured to respectively perform the plurality of sensing values with at least one preset The values are compared to generate a plurality of comparison results, and the plurality of compensation values are generated according to the plurality of comparison results. 6. The touch panel of the touch panel of claim 5, wherein The at least one comparison unit is a comparator. 7. The compensation device of the touch panel of the invention, wherein the compensation module comprises at least one compensation unit coupled to the processing module, the touch panel, and the detecting unit. The at least one compensation unit is configured to perform corresponding compensation on the plurality of sensing elements according to the plurality of values. 8. The compensation device for a touch panel according to claim 7, wherein at least the compensation unit comprises at least a switch and at least a resistor, the at least the core system (four) is less than the money-switch and the plurality Between the sensing elements, wherein the at least-on relationship is to selectively turn on or off the at least one resistor to perform corresponding compensation on the plurality of sensing elements according to the plurality of compensation values. The compensation device of the touch panel of claim 7, wherein the compensation unit is lightly connected to both ends of each sensing element of the touch panel, and is equally symmetrically compensated at both ends thereof. . 1). The touch panel compensation device according to the above application, wherein the touch panel is a resistive touch panel. U·—the type of compensation for the “plate”, “compensation—the difference between the multiple sensed j7C components included in the touch panel.” The compensation method for the touch panel includes the following steps: 201115447: (8) Detecting the multiple senses Measure the component to generate a corresponding plurality of _ values; (9) according to the plurality of sensing values, correspondingly determine a plurality of compensation values; and (4) according to the plurality of compensation values, the corresponding sensing elements of the division are correspondingly performed Compensation. 12. The method for compensating a touch panel according to the invention of claim 4, wherein the plurality of sensings (4) are obtained by detecting the plurality of sensing elements. A plurality of voltage value compensation methods, wherein the step (a) of the touch panel according to claim 12 includes the following steps: and wherein the (al) side of the plurality of sensing elements And generating a plurality of current values (4) converting the plurality of current values to correspond to the plurality of kitchen values, such as the touch panel compensation method described in the patent application, and the step (b) comprises the following steps: (b1) The knife does not compare the plurality of sensed values with at least one of the plurality of comparison results; and the preset value, and generates a complex (4) corresponding to the plurality of compensation values according to the plurality of comparison results. The method for compensating a touch panel according to claim 11, wherein the step (4) in the basin is based on the plurality of compensation values, and the selective conduction or disconnection is connected to at least one resistor of the plurality of sensing elements. Corresponding compensation is performed on the plurality of sensing elements.