WO2019151342A1 - Dispositif de panneau tactile à film resistif - Google Patents

Dispositif de panneau tactile à film resistif Download PDF

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Publication number
WO2019151342A1
WO2019151342A1 PCT/JP2019/003224 JP2019003224W WO2019151342A1 WO 2019151342 A1 WO2019151342 A1 WO 2019151342A1 JP 2019003224 W JP2019003224 W JP 2019003224W WO 2019151342 A1 WO2019151342 A1 WO 2019151342A1
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WIPO (PCT)
Prior art keywords
touch panel
electrode
electrodes
panel device
arc
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PCT/JP2019/003224
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English (en)
Japanese (ja)
Inventor
山中　剛
康平 薄葉
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Ｎｋｋスイッチズ株式会社
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Publication of WO2019151342A1 publication Critical patent/WO2019151342A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Definitions

  • the present invention relates to a resistive touch panel device. More particularly, the present invention relates to an analog resistive touch panel device that maintains linearity indicating the positional accuracy of touch panel input.
  • the analog resistive film type touch panel device as a conventional technique has a configuration in which a plurality of dot spacers that are insulators are arranged between a rectangular upper electrode and a lower electrode.
  • a flexible transparent conductive film is used for the upper electrode.
  • the upper electrode of this touch panel device is touched with a finger or a touch pen, the upper electrode at the touched position bends, and the upper electrode and the lower electrode come into contact with each other at a portion where the dot spacer does not exist, so that the voltage depends on the voltage value.
  • the coordinates of the touched position are detected.
  • the dot spacers are arranged so that the upper electrode and the lower electrode do not accidentally contact with each other due to external factors such as the environment.
  • Analog type resistive touch panel devices can be classified into four-wire type and five-wire type depending on the method, and among these methods, the 4-wire type is often used.
  • the 4-wire type as shown in FIG. 8B, an X coordinate circuit is formed on the upper electrode side, and a Y coordinate circuit is formed on the lower electrode side. Since the X coordinate circuit and the Y coordinate circuit have different voltage gradients, when the voltage at the touched position is measured, the coordinates of the position are detected. Specifically, when the position A is touched with the voltage Vcc applied between the electrode X1 and the electrode X2 of the X coordinate circuit, the voltage V is generated at the electrode Y1 constituting the lower electrode.
  • the ratio (a: b) between the distance a from the touched position A to the electrode X1 and the distance b from the position A to the electrode X2 is It becomes equal to the ratio (R1: R2) between the value of the resistor R1 and the value of the resistor R2.
  • the voltage value at the touched position A is calculated, and the calculated voltage value is A / D converted.
  • the coordinates of the input position A in the X coordinate circuit are output as digital values.
  • the Y coordinate circuit also outputs the coordinates of the input position A as a digital value on the same principle as the X coordinate circuit.
  • the analog resistive film type touch panel device as a conventional technique is configured to specify the coordinates of the touched position.
  • the relationship between the upper electrode and the lower electrode is a relationship between the vertical axis (Y axis) and the horizontal axis (X axis)
  • the shapes of the upper electrode and the lower electrode constitute the vertical axis and the horizontal axis. It is assumed that the shape is easy to do, that is, a rectangle. For this reason, for example, a product whose design concept is to give the buyer a soft impression by making the shape of the product circular or elliptical, for example, the shape of the touch panel must be rectangular. There were also restrictions on product development.
  • Patent Documents 1 and 2 each propose a method for obtaining a circular touch panel.
  • Patent Document 1 the technique proposed in Patent Document 1 is such that if the upper and lower transparent electrodes are polygonal, a shape close to a circle can be obtained.
  • a polygonal touch panel is used instead of a circle. It is invention of this.
  • a hexagonal active area (usable area) of the input surface of the touch panel is divided by a certain size of ridge, and each of the ridges is representative.
  • a position number is assigned.
  • the representative position number has two representative position coordinates, that is, the position on the X-axis side of the panel and the position on the Y-axis side of the panel. All the position coordinates are determined by the representative position coordinates.
  • a correlation table for obtaining the position coordinates of the press input point must be set in advance, and a controller for controlling the correspondence relationship with the correlation table must be prepared separately.
  • a controller In the technique disclosed in Patent Document 1, a controller must be prepared in accordance with the shape, such as an octagon or a decagon, even if it is polygonal.
  • Patent Document 2 The technique proposed in Patent Document 2 is based on a reference conductive electrode provided opposite to the outer periphery on the surface of the transparent electrode, and a plurality of searches provided in parallel with the reference conductive electrode along the outer peripheral region.
  • the conductive electrodes face each other to form a parallelogram active area (touchable area), and the position coordinates of the input points of the active area are calculated.
  • the reference conductive electrode and the search conductive electrode are both straight lines, there is no active area between the region between the reference conductive electrode and the outer periphery and the region between the search conductive electrode and the outer periphery. A region is formed.
  • Patent Documents 1 and 2 are both methods for obtaining a circular touch panel, but to be precise, it is a method for obtaining a polygonal touch panel device. . Furthermore, when the shape of the touch panel device is circular, the linearity indicating the positional accuracy of the touch panel input must be maintained. However, Patent Documents 1 and 2 also describe a technique for maintaining linearity. There is no suggestion.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a circular or substantially circular analog resistive film type touch panel device that maintains linearity.
  • a resistive film type touch panel device includes: The upper electrode part having a circular or substantially circular upper conductive film in which the X coordinate circuit is formed and the lower electrode part having a circular or substantially circular lower conductive film in which the Y coordinate circuit is formed are arranged to face each other.
  • an analog type resistive touch panel device The X coordinate circuit and the Y coordinate circuit each include a pair of electrodes having at least one arc-shaped electrode. It is characterized by that.
  • the upper conductive film and the lower conductive film are circular or substantially circular in shape, and the X coordinate circuit and the Y coordinate circuit each include a pair of electrodes having at least one arc-shaped electrode. Therefore, the linearity of the circular or substantially circular analog resistive film type touch panel device can be maintained.
  • a straight line connecting the center of the arc-shaped electrode of the X coordinate circuit including a pair of electrodes and the center of the upper conductive film, and the center and the lower portion of the arc-shaped electrode of the Y coordinate circuit Since the straight line connecting the center of the conductive film is orthogonal, a coordinate axis for specifying the touched position is suitably formed. As a result, it is possible to provide a circular or substantially circular analog resistive film type touch panel device with more maintained linearity.
  • a center angle of the arc-shaped electrode is 90 degrees to 170 degrees.
  • the central angle of the arc-shaped electrode is 90 ° to 170 °, a circular or substantially circular analog resistive film type touch panel device corresponding to the required level of linearity is provided. Can be provided.
  • the value indicating linearity obtained by the percentage of the maximum knitting position and the maximum voltage from the theoretical output voltage line is ⁇ 1.5%. According to the present invention, since the value indicating linearity is ⁇ 1.5%, it is possible to provide a circular or substantially circular analog resistive film type touch panel device that further maintains linearity.
  • both of the pair of electrodes are the arc-shaped electrodes. According to this invention, since both of the pair of electrodes are arc-shaped electrodes, the linearity of the voltage distribution between the opposing electrodes can be maintained at a higher level.
  • a part of the outer edge of the upper electrode part and the outer edge of the lower electrode part are joined by a foldable joint part, and by bending the joint part, It is preferable that the upper electrode portion and the lower electrode portion are arranged so as to overlap and face each other. According to the present invention, the upper electrode portion and the lower electrode portion can be easily overlapped and integrated.
  • FIG. 2A It is a top view of the voltage mapping which shows the linearity in case the shape of an electrode is the pattern of FIG. 2A. It is a perspective view of the voltage mapping which shows the linearity in case the shape of an electrode is the pattern of FIG. 2A. It is a top view of the voltage mapping which shows the linearity in case the shape of an electrode is the pattern of FIG. 2B. It is a perspective view of the voltage mapping which shows the linearity in case the shape of an electrode is the pattern of FIG. 2B.
  • FIG. 2C It is a top view of the voltage mapping which shows the linearity in case the shape of an electrode is the pattern of FIG. 2C. It is a perspective view of the voltage mapping which shows the linearity in case the shape of an electrode is the pattern of FIG. 2C.
  • FIG. 2A It is a figure which shows the example which drew the character and the figure using the resistive film type touch panel apparatus of FIG. 2A. It is a figure which shows the example which drew the character and the figure using the resistive film type touch panel apparatus of FIG. 2B. It is a figure which shows the example which drew the character and the figure using the resistive film type touch panel apparatus of FIG. 2C.
  • a resistive touch panel device 1 according to an embodiment of the present invention will be described with reference to the drawings. In addition, this invention is not limited to the following embodiment.
  • FIG. 1A and 1B are external views of the resistive touch panel device 1.
  • FIG. 1A is a plan view of the resistive touch panel device 1
  • FIG. 1B is a cross-sectional view of the resistive touch panel device 1.
  • the resistive film type touch panel device 1 is an analog type resistive film type touch panel device in which a circular or substantially circular upper electrode part 11 and a lower electrode part 21 are arranged to face each other.
  • the upper electrode portion 11 includes a circular or substantially circular upper electrode plate 101, and a circular or substantially circular upper conductive film 102 on which an X coordinate circuit 100 including a pair of electrodes (electrodes 111 and 112) is formed.
  • the lower electrode unit 21 includes at least a circular or substantially circular lower electrode plate 201, and a circular or substantially circular lower conductive film 202 on which a Y coordinate circuit 200 including a pair of electrodes (electrodes 211 and 212) is formed. , And dot spacers 203.
  • the X coordinate circuit 100 and the Y coordinate circuit 200 each include at least one arc-shaped electrode.
  • the upper electrode portion 11 at the touched position is deflected, and the dot spacer 203 is Since the upper electrode portion 11 and the lower electrode portion 21 are in contact with each other and conduct in a portion that does not exist, the coordinates of the touched position can be detected based on the voltage value.
  • the upper electrode portion 11 includes at least a circular or substantially circular upper electrode plate 101 and a circular or substantially circular upper conductive film 102 on which an X coordinate circuit 100 including a pair of electrodes (electrodes 111 and 112) is formed. .
  • “at least” means that other components may be included.
  • the upper electrode portion 11 may include a circular or substantially circular hard coat (not shown) for protecting the surface of the upper electrode plate 101 from scratches and dirt.
  • the upper electrode plate 101 is a circular or substantially circular electrode plate disposed above the upper electrode portion 11.
  • the upper electrode plate 101 is made of a transparent material that bends when touched with a finger or a touch pen.
  • a material such as a PET (polyethylene terephthalate) film or thin glass can be used as the upper electrode plate 101.
  • the upper surface of the upper electrode plate 101 may be subjected to a process of attaching a hard coat (not shown) for protecting the surface of the upper electrode plate 101 from scratches and dirt.
  • the upper conductive film 102 is a circular or substantially circular conductive film disposed below the upper electrode plate 101 so as to face a lower conductive film 202 described later.
  • an X coordinate circuit 100 including a pair of arc-shaped electrodes (electrode 111 and electrode 112) is formed on the surface of the upper conductive film 102.
  • the upper conductive film 102 has a uniform resistance value, but the specific resistance value is not particularly limited. For example, a resistance value of about 300 ⁇ / ⁇ to 500 ⁇ / ⁇ can be used.
  • the material of the upper conductive film 102 is not particularly limited. A film obtained by depositing ITO (Indium Tin Oxide) or a metal material such as silver (printing) on a transparent film can be used.
  • the lower electrode unit 21 includes a circular or substantially circular lower electrode plate 201, and a lower conductive film 202 on which a Y coordinate circuit 200 including a pair of electrodes (electrodes 211 and 212) is formed. And dot spacers 203 at least. Note that “at least” means that other components may be included.
  • the lower electrode portion 21 may include a retardation plate (not shown) for reducing light reflection.
  • the lower electrode plate 201 is a circular or substantially circular electrode plate disposed below the lower electrode portion 21.
  • the material of the lower electrode plate 201 is not particularly limited. For example, soda glass (soda lime glass, soda lime glass), a plastic plate, a film, or the like can be used.
  • the lower conductive film 202 is a conductive film disposed on the lower electrode plate 201 so as to face the upper conductive film 102 with the dot spacer 203 interposed therebetween. On the surface of the lower conductive film 202, a Y coordinate circuit 200 including a pair of electrodes (electrodes 211 and 212) is formed.
  • the lower conductive film 202 has a uniform resistance value, but the specific resistance value is not particularly limited. For example, a resistance value of about 300 ⁇ / ⁇ to 500 ⁇ / ⁇ can be used.
  • the material of the lower conductive film 202 is not particularly limited.
  • the transparent film may be a film obtained by depositing ITO (Indium Tin Oxide) or a metal material such as silver applied (printed).
  • the dot spacer 203 is an insulator formed between the upper conductive film 102 and the lower conductive film 202, and when the touch operation on the resistive touch panel device 1 is not performed, the upper conductive film 102 and the lower conductive film 202. Prevent accidental contact with. Specifically, the dot spacer 203 is formed on the surface of the lower conductive film 202 by a technique such as printing. Thereby, it is possible to prevent the upper conductive film 102 and the lower conductive film 202 from being short-circuited due to external factors such as the environment.
  • the upper electrode plate 101 is circular or substantially circular, and the surface of the upper conductive film 102 includes a pair of arc-shaped electrodes (electrode 111 and electrode 112).
  • a coordinate circuit 100 is formed.
  • the lower electrode plate 201 is circular or substantially circular, and a Y coordinate circuit 100 including a pair of arc-shaped electrodes (electrodes 211 and 212) on the surface of the lower conductive film 202. Is formed. Since the upper electrode portion 11 and the lower electrode portion 21 have the above-described configuration, it is possible to provide a circular or substantially circular analog resistive film type touch panel device that maintains linearity.
  • linearity means linearity and is a concept indicating the positional accuracy of the input of the resistive touch panel device 1. That is, since the input position accuracy of the resistive touch panel device 1 depends on the uniformity of the upper conductive film 102 and the lower conductive film 202, for example, the maximum knitting position and the maximum voltage from the theoretical output voltage straight line Whether or not linearity is maintained is determined based on the value obtained as a percentage. Other examples of specific shapes of the electrodes 111 and 112 will be described later with reference to FIGS. 2A to 2C.
  • FIGS. 3A and B to FIGS. 5A and 5B are voltage mappings showing linearity for the specific examples and comparative examples of FIGS. 2A to C, respectively.
  • the voltage mapping is a graph that is displayed superimposed on the shape of the resistive touch panel device 1, and is divided according to color, color, etc. so that portions of the same voltage form the same layer. Is a graph displayed.
  • the boundary line of the layer is displayed in a straight line or a shape close to a straight line.
  • the voltage mapping shown in FIGS. 3A and 3 to FIGS. 5A and 5B shows only the voltage distribution of the upper electrode portion 11 for convenience of explanation.
  • the voltage mapping of the lower electrode portion 21 is omitted because the voltage mapping of the upper electrode portion 11 is rotated 90 degrees.
  • the resistive touch panel device 1 can be opened to the upper electrode part 11 and the lower electrode part 21 with the joint part 31 between the outer edge of the upper electrode part 11 and the outer edge of the lower electrode part 21 as a fulcrum.
  • the resistive electrode type touch panel device 1 is formed by integrating the upper electrode portion 11 and the lower electrode portion 21 that are opened in two by folding and joining them with the joint portion 31 as a fulcrum. Can do.
  • FIGS. 2A to 2C and FIGS. 7A to 7D are diagrams showing a state in which the resistive touch panel device 1 is opened to the upper electrode portion 11 and the lower electrode portion 21 with the joint portion 31 as a fulcrum. Yes.
  • the voltage mapping shown in FIGS. 3A and B to FIGS. 5A and 5B shows the results measured by the following potential measurement method. That is, a voltage of 5 V (volt) is applied to one electrode (for example, electrode 111) of the pair of electrodes of each of the upper electrode portion 11 and the lower electrode portion 21, and the other electrode (for example, electrode 112) is applied. The voltage was measured using a multimeter (circuit meter) as GND (ground). The resistance value distribution of the entire resistive film touch panel device 1 was read out by measuring the potential of the point at a plurality of locations.
  • the GND side of the multimeter is connected to the GND of the electrode, the voltage measurement side probe of the multimeter and the upper electrode unit 11 are connected, and the measurement location (point to be measured) is touched with a finger.
  • the voltage was measured.
  • the number of measurement locations was 400.
  • FIG. 2A is a diagram illustrating a case where all the electrodes are formed of dots.
  • the electrode 111 and the electrode 112 of the upper electrode part 11 and the electrode 211 and the electrode 212 of the lower electrode part 21 are all constituted by point-like electrodes.
  • the electrodes 111 and 112 are disposed at the upper and lower ends of the upper electrode portion 11 or in the vicinity thereof, and the electrodes 211 and 212 are disposed at the left and right ends of the lower electrode portion 21 or in the vicinity thereof.
  • Electrodes 111, 112, 211, and 212 are bent even when the lower electrode portion 21 is bent with the joint portion 31 as a fulcrum, and the upper electrode portion 11 and the lower electrode portion 21 are overlapped. They are arranged so that they do not overlap. In this way, when the four electrodes are all composed of dots, as shown in the voltage mapping of FIGS. 3A and 3B, the range is about one third of the whole centered on the electrodes. The voltage is distributed in an arc shape, and the voltage distribution is not maintained with linearity. On the other hand, on the side of the arc-shaped electrodes (electrodes 112 and 212), the voltage distribution is far more linear than the point-shaped electrode side. Further, in the vicinity of an intermediate point between the point-like electrode and the arc-like electrode, the voltage distribution is maintained with linearity as compared with the vicinity of the electrode.
  • FIG. 2B is a diagram illustrating a case where the electrode is configured by an arc shape and a dot shape.
  • the electrode 111 is an arc-shaped electrode and the electrode 112 is a dot-shaped electrode.
  • the electrode 111 is an arc-shaped electrode having a central angle of 90 degrees, and is arranged along the curved shape of the edge of the upper electrode portion 11 at or near the lower end portion of the upper electrode portion 11 in the opened state. ing.
  • the electrode 112 is disposed at or near the upper end of the opened upper electrode part 11.
  • the electrode 211 is a dot electrode
  • the electrode 212 is an arc-shaped electrode.
  • the electrode 211 is disposed at the left end portion of the lower electrode portion 21 or in the vicinity thereof.
  • the electrode 212 is an arc-shaped electrode having a central angle of 90 degrees, and is arranged along the curved shape of the edge of the lower electrode portion 21 at or near the right end portion of the lower electrode portion 21. Even if these four electrodes (electrodes 111, 112, 211, and 212) are bent with the joint 31 as a fulcrum and the upper electrode portion 11 and the lower electrode portion 21 are overlapped, the electrodes do not overlap each other. Is arranged.
  • the central angle is an angle formed by two radii connecting both ends of the arc-shaped electrode and the center of the circular or substantially circular conductive film.
  • the point electrodes (electrodes 112 and 211) are formed.
  • the voltage is distributed in an arc shape in the range of about one third of the whole centering on the point-like electrode. Further, in the vicinity of the intermediate point between the electrodes, the voltage distribution is far more linear than the vicinity of the electrodes.
  • FIG. 2C is a diagram illustrating a case where all the electrodes are formed in an arc shape. That is, FIG. 2C shows the shape of the electrode of the resistive touch panel device 1 shown in FIG. 1A. As shown in FIG. 2C, the electrode 111 and the electrode 112 of the upper electrode portion 11 are both arc-shaped electrodes having a central angle of 90 degrees, and the upper electrode portion is located at or near the upper and lower ends of the upper electrode portion 11. 11 are arranged so as to follow the curved shape of the elbow.
  • Each of the electrodes 211 and 212 of the lower electrode portion 21 is an arc-shaped electrode having a central angle of 90 degrees, and the edge of the lower electrode portion 21 is formed at or near the left and right ends of the lower electrode portion 21. Each is arranged along a curved shape.
  • the resistive touch panel device 1 is formed by the upper electrode portion 11 and the lower electrode portion 21 being folded with the joint portion 31 as a fulcrum and overlapping.
  • these four arc-shaped electrodes are all arc-shaped electrodes having a central angle of 90 degrees, the electrodes do not have a portion where they overlap each other. And it arrange
  • the upper electrode portion 11 and the lower electrode portion 21 include arc-shaped electrodes, the effect of maintaining linearity is achieved.
  • the voltage distribution has a high linearity as a whole. That is, when the linearity is obtained in the voltage distribution with a pair of electrodes facing each other with respect to a circular or substantially circular surface resistance, it is preferable to provide an arc-shaped electrode near the outer periphery of the circular surface. It is. Thereby, linearity can be given to the voltage distribution between the electrodes which oppose.
  • the resistive touch panel device 1 maintains linearity in which the percentage between the maximum knitting position and the maximum voltage from the theoretical output voltage straight line equivalent to that of the known rectangular resistive touch panel device is ⁇ 1.5%.
  • a known rectangular analog touch panel control board not shown
  • characters can be obtained in the same manner as the known rectangular analog touch panel. It is possible to detect the down position of the drawing. In other words, since it is circular or substantially circular, it is not necessary to prepare a dedicated control board, and development costs can be reduced.
  • FIGS. 6A to 6C show comparative examples in the case where characters (characters “Yamanaka” in alphabets) and figures (“ ⁇ ” and “ ⁇ ”) are drawn using the resistive touch panel device 1.
  • FIG. FIG. 6A shows an example in which all of the electrodes are constituted by point-like electrodes
  • FIG. 6B shows an example in which the electrodes are constituted by dot-like electrodes and arc-shaped electrodes
  • FIG. 6C shows that all of the electrodes are circular. The example in the case of being comprised by the arc-shaped electrode is shown.
  • the letters (alphabet letters) are displayed in a bent shape, and the figure “ ⁇ ”is also displayed as a figure“ ⁇ ”.
  • the electrode is composed of a dot-like electrode and an arc-like electrode
  • the letters (alphabet) are displayed in a curved shape, and a part of the figure “ ⁇ ” is a figure “ ⁇ ”.
  • it was displayed it was displayed, it was displayed in the shape of “ ⁇ ” on the arc-shaped electrode side.
  • all of the electrodes are composed of arcuate electrodes, they are displayed as input as shown in FIG. 6C.
  • the linearity is particularly maintained, so that the content input to the resistive touch panel device 1 can be suitably displayed.
  • the four electrodes of the resistive touch panel device 1 according to the present embodiment are all arc-shaped electrodes having a central angle of 90 degrees. Thereby, when the upper electrode part 11 and the lower electrode part 21 are overlapped, the four electrodes do not overlap all at all, and are neatly arranged in an annular shape without a gap.
  • the central angle of the arc-shaped electrode is not limited to 90 degrees, and can be configured with various central angles as shown in FIGS. 7A to 7D.
  • FIGS. 7A to 7D are diagrams illustrating an example in which the electrode shape of the resistive touch panel device 1 is only an arc shape
  • FIG. 7A is a diagram illustrating a case where the center angle of the arc electrode is 90 degrees
  • 7B is a diagram showing a case where the center angle of the arc-shaped electrode is 120 degrees
  • FIG. 7C is a diagram showing a case where the center angle of the arc-shaped electrode is 150 degrees
  • FIG. 7D is a center angle of the arc-shaped electrode. It is a figure which shows the case where is 170 degree
  • the size of the central angle of the arc-shaped electrode is 90 to 170 degrees, but the size of the central angle of the arc-shaped electrode is not limited to this range.
  • the central angle may be less than 90 degrees or greater than 170 degrees.
  • the resistive touch panel device to which the present invention is applied only needs to have the following configuration, and can take various embodiments. That is, the resistive touch panel device to which the present invention is applied (for example, the resistive touch panel device 1 in FIGS. 1A and 1B)
  • An upper electrode portion for example, the upper electrode portion in FIGS. 1A and 1B having a circular or substantially circular upper conductive film (for example, the upper conductive film 102 in FIG. 1B) on which an X coordinate circuit (for example, the X coordinate circuit 100 in FIG. 1B) is formed. 11
  • a lower electrode portion for example, FIGS. 1A and B having a circular or substantially circular lower conductive film (for example, the lower conductive film 202 of FIG.
  • the X coordinate circuit 100 and the Y coordinate circuit 200 include a pair of electrodes (for example, the electrodes 111 and 112 and the electrodes 211 and 212 in FIG. 1A) each having at least one arc-shaped electrode.
  • the upper conductive film 102 and the lower conductive film 202 are circular or substantially circular in shape
  • the X coordinate circuit 100 and the Y coordinate circuit 200 include arc-shaped electrodes 111 and 112 and electrodes 211 and 212. Since each of them is included, it is possible to provide a circular or substantially circular analog resistive film type touch panel device in which linearity is maintained.
  • the coordinate axis is formed by the X coordinate circuit 100 and the Y coordinate circuit 200 being orthogonal to each other.
  • the coordinate axis is formed by the X coordinate circuit 100 and the Y coordinate circuit 200 being orthogonal to each other, it is possible to provide a circular or substantially circular analog resistive film type touch panel device with further maintained linearity. .
  • a center angle of the arc-shaped electrode is 90 degrees to 170 degrees.
  • the center angle of the arc-shaped electrode is 90 ° to 170 °, it is possible to provide a circular or substantially circular analog resistive film type touch panel device according to the required linearity. .
  • a value indicating linearity which is obtained by a percentage between the maximum knitting position and the maximum voltage from the theoretical output voltage line, is ⁇ 1.5%.
  • a part of the outer edge of the upper electrode part and the outer edge of the lower electrode part are joined by a bendable joint part (for example, the joint part 31 in FIGS. 2A to 2C). It is preferable that the upper electrode portion and the lower electrode portion are arranged so as to overlap and face each other by bending the joint portion. Thereby, the upper electrode part and the lower electrode part can be easily overlapped and integrated.

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Abstract

La présente invention a pour objet de fournir un dispositif de panneau tactile à film résistif de type analogique circulaire ou sensiblement circulaire dans lequel la linéarité est maintenue. À cet effet, l'invention porte sur un dispositif de panneau tactile à film résistif de type analogique (1) dans lequel une partie d'électrode supérieure (11), qui a un film conducteur supérieur circulaire ou sensiblement circulaire (102) sur lequel est formé un circuit de coordonnées X (100), et une partie d'électrode inférieure (21), qui a un film conducteur inférieur circulaire ou sensiblement circulaire (202) sur lequel est formé un circuit de coordonnées Y (200), sont agencées de façon à être l'une à l'opposé de l'autre. Des paires d'électrodes (électrodes 111 et 112, électrodes 211 et 212) ayant au moins une électrode en forme d'arc sont comprises respectivement dans le circuit de coordonnées X (100) et le circuit de coordonnées Y (200).
PCT/JP2019/003224 2018-01-31 2019-01-30 Dispositif de panneau tactile à film resistif WO2019151342A1 (fr)

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JP2018015855A JP6983686B2 (ja) 2018-01-31 2018-01-31 抵抗膜式タッチパネル装置
JP2018-015855 2018-01-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019133464A (ja) * 2018-01-31 2019-08-08 Ｎｋｋスイッチズ株式会社 抵抗膜式タッチパネル装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992010823A1 (fr) * 1990-12-07 1992-06-25 Asher David J Capteur et controleur a effleurement
JPH11143622A (ja) * 1997-11-11 1999-05-28 Tokyo Cosmos Electric Co Ltd 位置入力装置
JP2013171351A (ja) * 2012-02-17 2013-09-02 Nlt Technologies Ltd タッチパネル及びタッチパネル付表示装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
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WO1992010823A1 (fr) * 1990-12-07 1992-06-25 Asher David J Capteur et controleur a effleurement
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JP2013171351A (ja) * 2012-02-17 2013-09-02 Nlt Technologies Ltd タッチパネル及びタッチパネル付表示装置

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JP2019133464A (ja) * 2018-01-31 2019-08-08 Ｎｋｋスイッチズ株式会社 抵抗膜式タッチパネル装置

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