JP2015204009A - Touch sensor panel and touch sensor system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily generate a ruled line as a standard for position input operation without specially requiring an increase in cost, dedicated software, or a ruled-line printing process nor the need to align ruled lines in a square shape to an electrode wiring pattern.SOLUTION: Between first electrode wire lines 14a which are thick in line width and visible in a plurality of first electrode wire lines 14a, 14b shown by solid lines in an X direction, a predetermined number of first electrode wire lines 14b which are too thin in line width to view are provided, and the lateral first electrode wire lines 14a which are visible are optimized in pitch. Between second electrode wire lines 19a which are thick in line width and visible in a plurality of second electrode wire lines 19a, 19b shown by solid lines in a Y direction, a predetermined number of second electrode wire lines 19b which are too thin in line width to view are provided, and the longitudinal second electrode wire lines 19a which are visible are optimized in pitch.

Description

  The present invention is used in, for example, a smart phone, a personal computer (PC), a tablet terminal, an electronic blackboard, and the like, and particularly used in a large display device, and enables a touch or multi-touch input operation and the touch sensor. The present invention relates to a touch sensor system that detects an operation position performed on a panel and performs display according to the detected position.

  2. Description of the Related Art Conventionally, a touch sensor panel is mounted as an input device on a display device (display) of an electronic information device such as a computer including a personal computer (PC) or a portable terminal device, thereby forming a touch sensor system.

  There are various types of touch sensor panels such as a resistive film type, a surface acoustic wave type, and an infrared type. Capacitance that enables multi-touch used in PC terminal devices and tablet terminal devices. Various sizes of displays ranging from small type displays to large type displays are used under the touch sensor panel.

  This capacitive touch sensor panel has a plurality of electrode wirings arranged orthogonally to each other on the input operation surface, and the touch sensor system is capable of touch operation with an operator's finger between intersecting electrode wirings. A position where the capacitance has changed in accordance with the proximity operation is detected as an input operation position, and display is performed in accordance with the detected position.

  In electronic information equipment such as the conventional PC terminal device and tablet terminal device described above, a touch sensor panel in which such electrode wiring is formed on an insulating substrate is used as a touch sensor module together with a control substrate on which a control circuit is mounted. It is installed. This touch sensor panel module is a part that realizes a basic function of the touch sensor panel, that is, a function of detecting a position of an input operation.

  FIG. 21 is a plan view for explaining a conventional touch sensor module.

  In FIG. 21, a conventional touch sensor module 100 includes first and second touch sensor panels 110 for position detection provided on a display screen, and a flexible printed circuit board (FPC) connected to the touch sensor panel 110. Peripheral wiring portions 120a and 120b, and a control unit 130 connected to the first and second peripheral wiring portions 120a and 120b.

  The touch sensor panel 110 includes a sensor unit 111 that enables an input operation, and wiring lead-out units 112 (112a and 112b) from one side in the X direction and the Y direction of the sensor unit.

  The sensor unit 111 includes a first sensor unit 111a in which a plurality of first electrode wirings 102a parallel to each other in the X direction are formed on the first insulating sheet 101a, and a back surface of the first sensor unit 111a. And a second sensor portion 111b in which a plurality of second electrode wirings 102b that are parallel to each other in the Y direction are formed on the second insulating sheet 101b.

  The wiring lead-out part 112a is connected to each of a plurality of first electrode wirings 102a extending along the X direction (left-right direction in the figure) on the first insulating sheet 101a, and is drawn out from the first lead-out wiring 103a. have.

  The wiring lead portion 112b has a second lead wiring 103b drawn from the second electrode wiring 102b extending along the Y direction (vertical direction in the drawing) on the second insulating sheet 101b.

  The first lead wiring 103a and the second lead wiring 103b are formed by patterning an ITO (indium tin oxide) film. The first and second insulating sheets 101a and 101b are bonded to each other so that the first electrode wiring 102a and the second electrode wiring 102b are orthogonal to each other and insulated from each other. 104 is configured. The sensor substrate 104 is bonded onto the glass substrate 105 and supported by the glass substrate 105 to constitute the touch sensor panel 110.

  The first peripheral wiring portion 120a has a structure in which a plurality of first wirings 122a are formed on the first flexible printed circuit board 121a, and one end of each of the plurality of wirings 122a corresponds to the corresponding first lead wiring 103a. Thus, the first flexible printed circuit board 121a is fixed to the sensor substrate 104.

  The second peripheral wiring portion 120b has a structure in which a plurality of second wirings 122b are formed on the second flexible printed circuit board 121b, and one end of each of the plurality of wirings 122b corresponds to the corresponding second lead wiring 103b. Thus, the second flexible printed circuit board 121b is fixed to the sensor substrate 104.

  These first and second wirings 122a and 122b are formed by patterning an ITO (indium tin oxide) film on the first and second flexible printed boards 121a and 121b, respectively.

  The control unit 130 is a substrate module having a structure in which each IC chip is mounted on the insulating substrate 131 as a driver IC 132, a controller IC 133, and a power supply IC 134. The first and second wirings 122a and 122b of the flexible substrates 121a and 121b are connected to the insulating substrate 131, respectively. The controller IC 133 is configured to control the driver IC 132, and the power supply IC 134 supplies a voltage necessary for driving the sensor unit 111 and a voltage necessary as a power supply for the driver IC 132 and the controller IC 133.

  The touch sensor module 100 having such a configuration is used as a touch sensor system in combination with a display device (display) as an input device in an electronic information device such as a computer or a portable terminal device.

  The operation of the above configuration will be briefly described below.

  When the power supply IC 134 of the control unit 130 generates a drive voltage, the driver IC 132 drives one of the first and second electrode wirings 102a and 102b under the control of the control IC 133. In this state, when the operator performs a touch operation in which the finger touches the sensor unit 111 of the touch sensor panel 110 or a proximity operation in which the finger is brought closer to the sensor unit 111, the other electrode wiring 102a and 102b from the other one is connected. Using the sense signal, the capacitance at the intersection of the first electrode wiring 102a and the second electrode wiring 102b changes at the position where the input operation is performed in the sensor unit 111, and it is determined that this capacitance change has occurred. The calculated position is calculated by the controller IC 133. Thereby, based on the operation menu displayed on the display device corresponding to the detected position, processing corresponding to the position of the input operation is performed in the electronic information device.

  Patent Document 1 discloses a lattice touch sensing system as a capacitive touch sensor panel as described above.

  In recent years, as the price of a large display with a screen exceeding 32 inches has been reduced, the application of the touch sensor module mounted on the display has been expanded to about 60 to 100 inches.

  As a result, the use of a touch sensor module and a touch sensor system using the touch sensor module as an interactive electronic blackboard capable of inputting video display and information from a conventional white board capable of copying is expanding.

  When the screen used for a handy device such as a smartphone is a small size of about 4 inches, the screen is likely to be filled with operation buttons due to the restriction that the touch screen is small.

  In addition, since the display screen is small, when the wiring pattern of the touch sensor is optically visible, there is a problem that the visibility of display information is lowered.

  Furthermore, a small screen of about 4 inches is required to display a large amount of information on a small screen and to input detailed information using a pen tip. Therefore, the resolution of the sensor sheet is required to be about 1 to 2 mm or less. Yes.

  For this reason, there is a demand for a touch sensor panel that has a good light transmission on the display screen and is optically invisible so that no extraneous objects appear on the screen.

  However, in medium and large screen sizes exceeding 20 inches, the touch sensor surface for position input operation is large, and the distance between the operator who performs position input operation and the touch screen is from a relatively distant position to the screen compared to the small screen size. Touch and draw characters and figures. In this case, it is easier to draw characters and figures in a beautifully aligned manner when the touch screen has a grid-like ruled line rather than a plain.

  In the case of a touch sensor panel installed on the display screen of a liquid crystal display, a method of displaying ruled lines in a grid pattern on the liquid crystal display is used as a means for creating a grid-like ruled line on the touch screen. (Patent Document 2).

  As another method, it is conceivable to print a grid-like ruled line on the touch sensor sheet in advance.

JP 2006-511879 A Japanese Patent No. 2944439

  In the above-mentioned conventional patent documents 1 and 2, when displaying ruled lines on a display screen, software for specially displaying ruled lines on a liquid crystal display is required, which requires cost increase or special software separately. Problems arise.

  In addition, when printing grid pattern lines on a grid on the insulating sheet of the touch sensor, a separate rule line printing process is required, and it is also necessary to align the electrode wiring pattern with the grid pattern lines. There is a problem that it is difficult to print. In addition, when the ruled lines are too conspicuous, there is a problem that the display quality is deteriorated.

  The present invention solves the above-described conventional problems, does not require cost increase, dedicated software or ruled line printing process, and does not require alignment between the electrode wiring pattern and the ruled line such as a grid pattern, and allows position input. It is an object of the present invention to provide a touch sensor panel and a touch sensor system using the touch sensor panel, which can easily form ruled lines as a guide for operation.

  The touch sensor panel of the present invention is a touch sensor panel for detecting a position where an indicator is in contact with or close to the touch sensor surface. The touch sensor surface includes a plurality of horizontal lines and a plurality of horizontal lines from a pattern including a wiring pattern. At least one of the vertical lines and the vertical and horizontal grid lines is configured so as to be visible, whereby the above object is achieved.

  Preferably, the pattern including the wiring pattern in the touch sensor panel of the present invention includes a plurality of first electrode wirings, a plurality of second electrode wirings orthogonal to the first electrode wirings, one or a plurality of dummy wirings, one or a plurality of wirings. The GND wiring and at least the plurality of first electrode wirings and the plurality of second electrode wirings among one or a plurality of dots.

  Further preferably, the pattern including the wiring pattern in the touch sensor panel of the present invention has a wiring that is visible and a wiring that is not visible to at least one of the dots.

  Further, preferably, the visible wiring and the non-visible wiring in the touch sensor panel of the present invention are due to a difference in line width of the wiring.

  Further, preferably, the visible wiring and / or the non-visible wiring with at least one of the dots in the touch sensor panel according to the present invention depends on the presence / absence of surface reflection prevention processing, blackening processing, or surface irregular reflection processing.

  Further, preferably, the visible wiring and the non-visible wiring with at least one of the dots in the touch sensor panel of the present invention are a triangular or trapezoidal cross section, a semicircular cross section, a semielliptical cross section, and a semi-circular cross section. According to.

  The touch sensor system of the present invention is a touch sensor system having display means for displaying an image through the touch sensor panel of the present invention, wherein the touch sensor surface is placed at an input position where an indicator is brought into contact with or in proximity to the touch sensor surface. In response, the operator who performs the position display operation can view at least one of the plurality of horizontal lines, the plurality of vertical lines, and the vertical and horizontal grid lines on the touch sensor surface from the operator. From the viewer who confirms the image displayed through the touch sensor surface at a position away from the touch sensor surface, at least one of the plurality of horizontal lines, the plurality of vertical lines, and the vertical and horizontal grid lines is difficult to see. Thus, the above object can be achieved.

  With the above configuration, the operation of the present invention will be described below.

  In the present invention, a touch sensor panel for detecting a position where an indicator is in contact with or close to the touch sensor surface, the touch sensor surface including a plurality of horizontal lines, a plurality of vertical lines, and vertical and horizontal lines from a pattern including a wiring pattern. At least one of the grid-like lines is configured to be visible.

This eliminates the need for cost increases, special software and ruled line printing processes, and does not require alignment between the electrode wiring pattern and ruled lines such as grids, and easily forms ruled lines that serve as a guide for position input operations. It becomes possible.
The present invention uses a wiring pattern made of an opaque conductive material such as copper or silver, and uses the property that an optically formed wiring pattern can be seen, and makes the wiring pattern play a role by making the wiring pattern stand out in a grid pattern. Is. In order to make the wiring pattern stand out in a grid pattern, it is possible to form a grid by periodically arranging the wiring that is easy to recognize with the eye by mixing the wiring that is easy to recognize with the eye and the wiring that is difficult to recognize with the eyes. It becomes.

  As described above, according to the present invention, cost increase, dedicated software, and ruled line printing process are not required separately, and it is not necessary to align the electrode wiring pattern and the ruled line such as a grid shape, which is a guideline for the position input operation. Ruled lines can be easily formed.

  The wiring that is easily recognized by the eyes that are periodically arranged forms a grid that serves as a guideline for position input, thereby facilitating the input of characters and figures. In addition, since the position input by the indicator is detected by all the wiring that is easily recognized by the eye and the wiring that is difficult to recognize, the input resolution is not lowered. Furthermore, by adjusting the visual appearance of the line width of the wiring pattern used as a ruled line, it looks good when the viewing distance from the touch sensor surface to the eyes is close, but the distance from the touch sensor surface to the eyes It becomes difficult to see when the distance is far away, and even if the touch sensor surface is positively visible, the display quality is not deteriorated. In particular, on a large screen, the input operator on the touch sensor surface has a shorter viewing distance from the touch sensor surface to the eyes, but the displayed screen is far from the line of sight compared to the input operator. Therefore, the grid-like ruled lines are difficult to see or cannot be seen, and the deterioration of display quality can be suppressed.

It is a top view which shows typically the wiring pattern of the touch sensor panel in Embodiment 1 of this invention. It is an expanded sectional view of the A-A 'line of FIG. It is a figure which shows the necessity examination result which examined the necessity of the grid-like ruled line according to screen size. It is a figure which shows the general characteristic of various wiring materials. It is a figure which shows the viewing distance from the screen of a touch sensor panel according to screen size to the eyes of an input operator, and the viewing distance from the screen of a touch sensor panel to eyes of a viewer. It is the figure which described the relationship between copper wiring pattern width and optical visibility, Comprising: (a) is the case where the distance from the screen of a touch sensor panel to eyes is 60 cm or less, and has not processed the surface of copper wiring It is a figure which shows the visibility result in a case, (b) is a figure which shows the visibility result at the time of carrying out the blackening process of the surface of a copper wiring. It is a top view which shows typically the wiring pattern of the touch sensor panel in Embodiment 2 of this invention. It is an expanded sectional view of the B-B 'line of FIG. It is a top view which shows typically the wiring pattern of the touch sensor panel in Embodiment 3 of this invention. It is a top view which shows typically the wiring pattern of the touch sensor panel in Embodiment 4 of this invention. (A) is a partial perspective view of a first electrode wiring and a second electrode wiring having a rectangular cross section having a predetermined line width, and (b) is a diagram illustrating a first electrode wiring and a second electrode wiring that have been subjected to surface unevenness treatment. It is a partial perspective view of electrode wiring. It is a partial perspective view of the 2nd electrode wiring of the section triangle which can be seen from the horizontal direction in this Embodiment 5. FIG. 16 is a partial perspective view of a second electrode wiring having a trapezoidal cross section that is visible from the lateral direction in the sixth embodiment. FIG. 16 is a partial perspective view of a second electrode wiring having a cross-sectionally kamaboko shape that is visible from the lateral direction in the seventh embodiment. It is a top view which shows typically the wiring pattern of the touch sensor panel in Embodiment 8 of this invention. It is a top view which shows typically the wiring pattern of the touch sensor panel in Embodiment 9 of this invention. It is a top view which shows typically the other wiring pattern of the touch sensor panel in Embodiment 9 of this invention. It is a top view which shows typically the other wiring pattern of the touch sensor panel in Embodiment 9 of this invention. It is a figure which shows the various examples of a dot pattern. It is a block diagram which shows the example of whole structure of the touch sensor system in Embodiment 10 of this invention. It is a top view for demonstrating the conventional touch sensor module.

  Hereinafter, Embodiments 1 to 9 of the touch sensor panel of the present invention and Embodiment 10 of a touch sensor system using at least one of these will be described in detail with reference to the drawings. In addition, each thickness, length, etc. of the structural member in each figure are not limited to the structure to illustrate from a viewpoint on drawing preparation. In addition, the number of wirings, the pitch, and the like do not need to match those of an actual device, and are set in consideration of the convenience of illustration and description, and are not limited to the illustrated configuration.

(Embodiment 1)
FIG. 1 is a plan view schematically showing a wiring pattern of a touch sensor panel according to Embodiment 1 of the present invention. FIG. 2 is an enlarged cross-sectional view taken along line AA ′ of FIG.

  As shown in FIG. 1, the touch sensor panel 1 according to the first embodiment includes a sensor unit 2 that enables a position input operation and one side of each X direction and Y direction of the sensor unit 2 in the plan view region. X-direction frame region 3 and Y-direction frame region 4 from which wiring is drawn out. The X-direction frame region 3 is the right side of the screen, the Y-direction frame region 4 is the lower side of the screen, and there are also frame regions on the upper side and the left side of the screen that are narrow in width. The sensor unit 2 is in an area surrounded by these frame areas.

  As shown in FIG. 2, the touch sensor panel 1 of Embodiment 1 has a cross-sectional structure in which a first insulating sheet (PET film) 13 is placed on a cover glass 11 via a transparent adhesive tape material 12. A plurality of first electrode wires 14 (14a, 14b) that are parallel to each other in the X direction and equally spaced in the X direction and a lead wire 15 (shown in FIG. 1) that is connected and gathered are formed. Further, the first wiring part 16 and the first wiring part 16 are parallel to each other in the Y direction on the lower surface of the second insulating sheet (PET film) 18 via a transparent adhesive tape material 17 at equal intervals. A plurality of second electrode wirings 19a and 19b (shown in FIG. 1) and a second wiring portion 21 formed with lead wirings 20 (shown in FIG. 1) connected to and gathered together. Have. The first electrode wiring 14a is configured to be thick so that the line width can be visually recognized at a predetermined distance, and the first electrode wiring 14b is configured to be thin so that the line width cannot be viewed at a predetermined distance. The second electrode wiring 19a is configured to be thick so that the line width can be visually recognized at a predetermined distance, and the second electrode wiring 19b is configured to be thin so that the line width cannot be viewed at a predetermined distance.

  The plurality of first electrode wires 14a and 14b indicated by solid lines in the X direction are connected to the lead wire 15 and the wire 22 on the cover glass 11, respectively, and gather in the end region 23 on the cover glass 11. Has been pulled out. A plurality of second electrode wirings 19 a and 19 b indicated by broken lines in the Y direction are also connected to the end region 25 on the cover glass 11 by being connected via the lead wiring 20 and the wiring 24 on the cover glass 11, respectively. It has been pulled out. The wiring 22 in the end region 23 and the wiring 24 in the end region 25 on the cover glass 11 are connected to a control unit for position detection control (not shown).

  In the wiring pattern, the first electrode wiring 14a in the X direction in which the wiring pattern line width is formed wider than the first electrode wiring 14b in the X direction, and the second wiring pattern 19b in the Y direction has the wiring pattern line width. The second electrode wirings 19a in the Y direction that are thicker than those are periodically arranged. One or a plurality of first electrode wirings 14b in the X direction with a narrow wiring pattern line width are arranged between the first electrode wirings 14a adjacent in the X direction which are thick, and the second electrodes adjacent in the Y direction are thick. Between the wirings 19a, one or a plurality of second electrode wirings 19b in the Y direction with a reduced wiring pattern line width are arranged. The size (horizontal pitch and vertical pitch) of the grid-like ruled lines appearing on the screen is set by the number of thin wires interposed between them.

  By visually recognizing the first electrode wiring 14a and the second electrode wiring 19a formed with a wide wiring pattern line width, the input operator can see from the input position as a grid-like ruled line on the grid. The size of the grid-like ruled line is adapted to the size of the characters and symbols drawn there.

  The vertical and horizontal grids and vertical or horizontal ruled lines are necessary for an input operator who performs position input using the touch sensor panel 1 and visually sees the image displayed through the touch sensor panel 1 from the display device. The user does not need a grid or ruled line on the screen. Therefore, the wiring width necessary for forming the grids and ruled lines depends on the optical visibility at the viewing distance from the input operator's eyes to the screen of the touch sensor panel 1. It is desirable that the grids and ruled lines are not visible to the viewer.

  Etching or printed wiring is used to process the first electrode wirings 14a and 14b and the second electrode wirings 19a and 19b having different line widths. The line width of the wiring pattern may be such that a grid-like ruled line can be visually recognized at a close input position for drawing a character or a symbol. Here, as a technique for making the wiring pattern invisible, the line width of the wiring pattern is reduced, and the line width is increased so that the grid-like ruled lines can be visually recognized. This processing does not add a new process separately, but can create a grid-like ruled line on the grid simultaneously with the wiring formation process, so that a visible grid-like ruled line can be efficiently formed.

  FIG. 3 is a diagram showing the necessity study result of examining the necessity of a grid-like ruled line for each screen size.

  As shown in FIG. 3, it was a result of examination that the necessity of a grid-like ruled line is unnecessary on a screen with a small screen size of 4 inches or 5 inches, but on a screen with a screen size of 20 inches or more. When entering characters and symbols, the result of the study was that if there was a grid-like ruled line, it would be guided and the input characters and symbols could be drawn neatly. In addition, the necessity of a grid-like ruled line was ambiguous at the intermediate screen size of 10 inches. In short, the larger the screen size, the greater the need for grid-like ruled lines that serve as a guide when drawing graphics or inputting characters and symbols.

  FIG. 4 is a diagram showing general characteristics of various wiring materials.

  As shown in FIG. 4, the copper wiring material has the lowest sheet resistance value and the smallest wiring pattern width compared to silver wiring material (silver paste) and indium tin oxide (ITO) wiring material, so the screen size is large. Effective for things. Usually, when the screen size is 20 inches or more, a copper wiring material or a silver wiring material is used. In short, the larger the screen size, the greater the need for grid-like ruled lines that serve as a guide when drawing graphics and entering characters and symbols. Therefore, opaque copper wiring materials and silver are also used for visibility of the grid-like ruled lines. It is preferable to use a wiring material. By adjusting the line width when forming the copper wiring, it can be selected to make the wiring appear thicker or to make it thinner.

  FIG. 5 is a diagram illustrating the viewing distance from the screen of the touch sensor panel 1 to the eyes of the input operator and the viewing distance from the screen of the touch sensor panel 1 to the eyes of the viewer for each screen size.

  As shown in FIG. 5, since a small screen size of 10 inches or less is normally used by one person, the input operator and the viewer are the same person, and the viewing distance is also equal to 20 cm to 40 cm. Further, in the case of a large screen size of 20 inches or more, when the input operator and the viewer are different persons, for example, the input operator performs an input operation on the screen of the touch sensor panel 1 to perform image processing and simultaneously describe the screen. It is assumed that the contents are explained and the viewer is viewing the explanation contents at a position away from the input operator. In short, the viewing distance from the screen of the touch sensor panel 1 to the eyes of the input operator is a large screen size of 20 inches or more, and the distance from the screen of the touch sensor panel 1 to the eyes is 60 cm or less. The appropriate viewing distance from the screen of the panel 1 to the eyes of the viewer increases as the screen size increases.

  FIG. 6 is a diagram describing the relationship between the copper wiring pattern width and the optical visibility. FIG. 6A shows the case where the distance from the screen of the touch sensor panel 1 to the eyes is 60 cm or less, and the copper wiring. It is a figure which shows the visibility result when not processing the surface of this, and FIG.6 (b) is a figure which shows the visibility result when the surface of copper wiring is blackened.

  As shown in FIG. 6A, the line widths of the first electrode wiring 14a and the second electrode wiring 19b are made visible by setting the line width of the first electrode wiring 14a and the second electrode wiring 19a to 10 μm. By making 3 μm invisible, it is possible to create a mesh. The resolution of the cell of the sensor sheet is determined by the line width and pitch of the first electrode wiring 14a and the second electrode wiring 19a, and the size of the cell is determined by the first electrode wiring 14a and the second electrode wiring 19a. It can be set arbitrarily according to the arrangement period.

  Therefore, according to the first embodiment, in the plurality of first electrode wirings 14a and 14b indicated by the solid line in the X direction, the visual recognition that the line width is narrow between the first electrode wirings 14a having a large line width and the visibility. A predetermined number of incompatible first electrode wirings 14b are provided to optimize the pitch of the laterally visible first electrode wirings 14a. Further, in the plurality of second electrode wirings 19a and 19b indicated by broken lines in the Y direction (shown here by broken lines but actually connected continuously), the second line having a wide line width and having visibility. A predetermined number of second electrode wirings 19b having a narrow line width and no visibility are provided between the electrode wirings 19a to optimize the pitch of the vertical second electrode wirings 19a with visibility. In this way, the plurality of first electrode wirings 14a and 14b and the plurality of second electrode wirings 19a and 19b orthogonal to the first electrode wirings 14a and 14b have different line widths so that one side has visibility to form a grid-like ruled line on the other side. Visibility is lost and the size of the grid-like ruled lines is determined.

  As a result, a grid-like ruled line on the grid is printed in advance on the protective cover glass 11 side or on the first insulating sheet (PET film) 13 and the second insulating sheet (PET film) 18 of the touch sensor panel 1. Compared with the above method, the grid-like ruled lines of the grid can be produced at the same time as the wiring formation for the first insulating sheet (PET film) 13 and the second insulating sheet (PET film) 18, so that the manufacturing cost is lower. Moreover, it does not require cost increase, special software or ruled line printing process as in the past, and there is no need to align the electrode wiring pattern and the grid-like ruled line, making it easy to make a grid-like ruled line as a guideline for input operations. Can be formed.

  In addition, it is necessary to form the frame regions 3 and 4 where the wiring is routed with a line width (thickness) where the wiring cannot be recognized.

  In the first embodiment, when the line widths of the first electrode wiring 14b and the second electrode wiring 19b having no visibility are narrowed from 3 μm to 1 μm, the screen size is applied to a screen size of 10 inches or less. Is desirable.

(Embodiment 2)
In the first embodiment, any one of the plurality of first electrode wirings in the X direction is periodically thickened so that the line width is visible, and any one of the plurality of second electrode wirings in the Y direction is periodically However, in the second embodiment, the predetermined line width is set so that any one of the plurality of first electrode wirings in the X direction is periodically visible. The blackening process is not performed on the other parts, and the other parts are blackened with a predetermined line width so that they are not visible, and any one of the plurality of second electrode wirings in the Y direction can be periodically visible. As described above, the case where the blackening process is not performed with the predetermined line width and the other parts are blackened with the predetermined line width to make the visibility impossible will be described. Here, as a technique for making the wiring pattern invisible, instead of reducing the line width of the wiring pattern, blackening treatment is performed to suppress reflection on the surface of the wiring, so that even the same line width is visible or invisible.

  FIG. 7 is a plan view schematically showing a wiring pattern of the touch sensor panel according to Embodiment 2 of the present invention. FIG. 8 is an enlarged sectional view taken along line B-B ′ of FIG. 7.

  As shown in FIG. 7, the touch sensor panel 1 </ b> A according to the second embodiment includes a sensor unit 2 </ b> A that enables a position input operation in the plan view region, and one side of each X direction and Y direction of the sensor unit 2 </ b> A. X-direction frame region 3A and Y-direction frame region 4A from which wiring is drawn out. The X-direction frame region 3A is the right side of the screen, the Y-direction frame region 4A is the lower side of the screen, and there are also frame regions on the upper and lower sides of the screen that are narrow in width. The sensor unit 2A is a central portion surrounded by these frame regions.

  As shown in FIG. 8, the touch sensor panel 1 of Embodiment 1 has a cross-sectional structure in which a first insulating sheet (PET film) 13 </ b> A is disposed on a cover glass 11 </ b> A via a transparent adhesive tape material 12 </ b> A. A first wiring portion in which a plurality of first electrode wirings 24a and 24b parallel to each other in the X direction and a lead wiring 15A (shown in FIG. 7) that is connected and gathered are formed on the lower surface of 16A and a plurality of second electrode wirings 29a parallel to each other in the Y direction on the lower surface of the second insulating sheet (PET film) 18A on the first wiring portion 16A via a transparent adhesive tape material 17A , 29b (shown in FIG. 7) and a second wiring portion 21A in which a lead wiring 20A (shown in FIG. 7) that is connected and gathered is formed. The line widths of the first electrode wirings 24a and 24b are the same, and the first electrode wiring 24b is arranged so as to be invisible by providing a blackening treatment portion 24c on the first electrode wiring 24a on the cover glass 11A side. It is composed periodically. Here, every other first electrode wiring 24b is provided. The line widths of the second electrode wirings 29a and 29b are the same, and a blackening treatment portion 29c (not shown) is provided on the second electrode wiring 29a on the cover glass 11A side so that the second electrode wirings 29a and 29b are not visible. One electrode wiring 29b is periodically formed. Here, every other second electrode wiring 29b is provided.

  A plurality of first electrode wires 24a and 24b indicated by solid lines in the X direction are connected to the lead wire 15A and the wire 22A on the cover glass 11A, respectively, and gather in the end region 23A on the cover glass 11A. Has been pulled out. A plurality of second electrode wires 29a and 29b indicated by broken lines in the Y direction are also connected to each other through the lead wire 20A and the wire 24A on the cover glass 11A, and gather in the end region 25A on the cover glass 11A. It has been pulled out. The wiring 22A in the end region 23A and the wiring 24A in the end region 25A on the cover glass 11A are connected to a control unit for position detection control (not shown).

  One or a plurality of first electrode wirings 24b in the X direction in which the surface of the wiring pattern on the cover glass 11A side is blackened between the visible first electrode wirings 24a in the X direction that are not blackened. One or a plurality of second electrodes in the Y direction in which the surface of the wiring pattern on the cover glass 11A side is blackened between the second electrode wirings 29a in the Y direction that are arranged and not blackened. Wiring 29b is arranged. The size (horizontal pitch and vertical pitch) of the grid-like ruled lines appearing on the screen is set according to the number of black lines (not visible) that are interposed between the visible wirings.

  The blackening treatment is to oxidize the surface of the copper wiring to blacken the wiring surface, thereby suppressing the reflection of light hitting the wiring pattern surface and reducing the visibility of the wiring pattern. .

  FIG. 6B shows the relationship between the wiring width of the copper wiring pattern and the optical visibility when the distance from the screen of the touch sensor panel 1A to the eyes is 60 cm or less and the surface of the copper wiring is blackened. However, it is possible to prevent the wiring width from being visually recognized up to 5 μm by the blackening process. On the other hand, FIG. 6A shows a case where the distance from the screen of the touch sensor panel 1 to the eyes is 60 cm or less, and the wiring width and optical visual recognition of the copper wiring pattern when the surface of the copper wiring is not blackened. However, by not performing the blackening treatment, visibility can be obtained when the wiring width is 5 μm or more.

  When the grid is formed by the presence or absence of the blackening treatment, all the line widths of the first electrode wirings 24a and 24b in the X direction and the second electrode wirings 29a and 29b in the Y direction are set to 5 μm. The electrode wiring 24b and the second electrode wiring 29b in the Y direction are blackened to make the visibility impossible. As can be seen from FIGS. 6A and 6B, the first electrode wiring 24a and the second electrode wiring 29a having a line width of 5 μm which are not blackened can be visually recognized. Since the first electrode wiring 24b having a line width of 5 μm and the second electrode wiring 29b in the Y direction cannot be recognized by the eyes, the first electrode wiring 24a and the second electrode wiring 29a that are not blackened are used. A grid-like ruled line can be created. The resolution of the grid-like ruled lines is determined by the horizontal and vertical pitches of the first electrode wiring 24a and the second electrode wiring 29a, and the size of the grid-like ruled lines is the first electrode wiring 24a and the second electrode wiring. It can be arbitrarily set according to the arrangement period of 29a.

  Therefore, according to the first embodiment, in the plurality of first electrode wirings 24a and 24b having the same line width indicated by the solid line in the X direction, the first electrode wiring 24a having high visibility that is not blackened. In the meantime, a predetermined number of first electrode wirings 24b that have been blackened and are not visible are provided to optimize the pitch of the laterally visible first electrode wirings 24a. Similarly, in the plurality of second electrode wirings 29a and 29b having the same line width indicated by the broken line in the Y direction, the blackening process is performed between the visible second electrode wirings 29a that are not blackened. A predetermined number of the second electrode wirings 29b having no visibility are provided to optimize the pitch of the vertical first electrode wirings 29a having visibility. In this way, in the plurality of first electrode wirings 24a and 24b and the plurality of second electrode wirings 29a and 29b orthogonal thereto, one side is given visibility depending on the presence or absence of the blackening treatment on the surface thereof, and a grid-like ruled line On the other hand, the size of the grid-like ruled lines is determined with no visibility.

  Thus, a grid-like ruled line of a grid is previously printed on the protective cover glass 11A side or the first insulating sheet (PET film) 13A and the second insulating sheet (PET film) 18A of the touch sensor panel 1A. Compared with the above method, since the grid-like ruled lines of the grid can be produced simultaneously with the formation of the wiring for the first insulating sheet (PET film) 13A and the second insulating sheet (PET film) 18A, the manufacturing cost is lower. Moreover, there is no need for cost increase and special ruled line display software or ruled line printing process as in the past, and there is no need to align the electrode wiring pattern and the checkered ruled line, and it is possible to input characters and symbols. A grid-like ruled line as a guide can be easily formed.

  Although not specifically described in the first and second embodiments, when the line width is set to 4 μm or 5 μm so that the wiring cannot be visually recognized in the frame regions 3 and 4 and the frame regions 3A and 4A where the wiring is routed. Needs to be blackened.

(Embodiment 3)
In the first embodiment, the line widths of the plurality of first electrode wirings in the X direction and the plurality of second electrode wirings in the Y direction are different depending on the presence or absence of visibility. Each of the plurality of first electrode wirings in the direction and the plurality of second electrode wirings in the Y direction has the same line width and is configured to have visibility depending on the presence / absence of blackening treatment. The combination of the first embodiment and the second embodiment enables visibility according to the presence or absence of blackening treatment with different line widths in each of the plurality of first electrode wirings in the X direction and the plurality of second electrode wirings in the Y direction. The case where it is configured so as to clarify the presence or absence of will be described. Or, since it is difficult to make a very thin wiring by etching, the entire surface is blackened, and the presence or absence of visibility is distinguished according to the line width in a state where etching is easier with a thicker wiring. You can also

  FIG. 9 is a plan view schematically showing a wiring pattern of the touch sensor panel according to Embodiment 3 of the present invention.

  As shown in FIG. 9, the touch sensor panel 1B according to the third embodiment includes a sensor unit 2B that enables a position input operation in the plan view region, and one side of each X direction and Y direction of the sensor unit 2B. X-direction frame region 3B and Y-direction frame region 4B from which wiring is drawn out. The X-direction frame region 3B is the right side of the screen, the Y-direction frame region 4B is the lower side of the screen, and there are also frame regions on the upper and lower sides of the screen that are narrow in width. The sensor unit 2B is in an area surrounded by these frame areas.

  In the sensor unit 2B, the plurality of first electrode wires 34a and 34b parallel to each other indicated by the solid line in the X direction are connected to each other via the lead wire 15B in the X direction frame region 3B and the wire 22B on the cover glass 11B, respectively. They are gathered and pulled out in the end region 23B on the cover glass 11B. Further, in the sensor unit 2B, a plurality of second electrode wirings 39a and 39b parallel to each other indicated by broken lines in the Y direction are also connected via the lead wiring 20B and the wiring 24B on the cover glass 11B, respectively, on the cover glass 11B. Are gathered and drawn out at the end region 25B. The wiring 22B in the end region 23B and the wiring 24B in the end region 25B on the cover glass 11B are connected to a control unit for position detection control (not shown).

  Between the first electrode wirings 34a in the X direction that have a thick line width and are not blackened, the surface of the wiring pattern on the cover glass 11B side is blackened. The electrode wiring 34b is disposed, and the Y-direction second electrode wiring 39a in which the line width is thick and not blackened is blackened on the surface of the wiring pattern on the cover glass 11B side, and the line width is thin. One or a plurality of second electrode wirings 39b in the direction are arranged. The size of the grid-like ruled lines that appear on the screen (depending on the number of wires in the blackening treatment (which loses visibility) with a thin line width interposed between the visible wirings that are thick and not blackened) Horizontal pitch and vertical pitch) can be set.

  6A, as described above, the relationship between the wiring width of the copper wiring pattern and the optical visibility when the surface of the copper wiring is not blackened in the touch sensor panel 1B of FIG. 9 is shown. However, the visibility can be obtained when the wiring width is 5 μm or more by not performing the blackening treatment. On the other hand, FIG. 6B shows the relationship between the wiring width of the copper wiring pattern and the optical visibility when the surface of the copper wiring is blackened in the touch sensor panel 1B. It is possible to make the wiring width unrecognizable up to 5 μm by the process.

  Specifically, the line widths of the plurality of first electrode wirings 34a and the plurality of second electrode wirings 39a that are not blackened are periodically widened, for example, 8 μm, and the plurality of first blackened films are processed. A grid-like ruled line can be clearly formed by periodically setting the line widths of the electrode wiring 34b and the plurality of second electrode wirings 39b to, for example, 5 μm. The resolution of the grid-like ruled lines is determined by the respective horizontal and vertical pitches of the plurality of first electrode wirings 34a and the plurality of second electrode wirings 39a, and the size of the grid-like ruled lines is determined by the plurality of first electrodes. It can be arbitrarily set according to each arrangement period (each pitch) of the wiring 34a and the plurality of second electrode wirings 39a.

  Therefore, according to the third embodiment, in the plurality of first electrode wirings 34a and 34b having different line widths indicated by the solid lines in the X direction, the first non-blackened line width is large and has a high visibility. A predetermined number of invisible first electrode wirings 34b having a thin black line width are provided between the electrode wirings 34a, so that the pitch of the visible horizontal first electrode wirings 34a can be more reliably ensured. Optimize. Similarly, in the plurality of second electrode wirings 39a and 39b having different line widths indicated by broken lines in the Y direction, the line widths that are not blackened are thick and visible between the second electrode wirings 39a with high visibility. Then, a predetermined number of second electrode wirings 39b having a thin black line width and invisible visibility are provided to optimize the pitch of the vertical first electrode wirings 39a with visibility. In this way, in the plurality of first electrode wirings 34a and 34b and the plurality of second electrode wirings 39a and 39b orthogonal to the first electrode wirings 34a and 34b, there is no surface blackening treatment, large line width, and surface blackening processing. With the presence and smallness of the line width, visibility is surely given to one side to make a grid-like ruled line, and visibility to the other is definitely lost to determine the size of the grid-like ruled line.

  As a result, the first insulating sheet (PET film) 13B (not shown) and the second insulating sheet (PET film) 18B (not shown) of the protective cover glass 11B and the touch sensor panel 1B in advance. Compared with the conventional method of printing a grid-like ruled line on a grid, the first insulating sheet (PET film) 13B (not shown) and the second insulating sheet (PET film) 18B (not shown) Since the grid-like ruled lines of the grid can be created at the same time as the wiring formation, the manufacturing cost is lower, and the electrode wiring pattern is not required, unlike the conventional method, which does not require cost increase or special ruled line display software or ruled line printing process. There is no need to align the grid lines with the grid-like ruled lines, and the grid-like ruled lines that serve as a guide for inputting characters and symbols can be easily formed.

  Although not specifically described in the third embodiment, it is necessary to perform blackening processing on the frame regions 3B and 4B where the wiring is routed so that the wiring cannot be recognized with eyes. At this time, the frame regions 3B and 4B are arranged on the cover glass 11B side for protection of the first insulating sheet (PET film) 13B (not shown) and the second insulating sheet (PET film) 18B (not shown). When the light is shielded by black solid printing, the wiring for drawing out the first insulating sheet (PET film) 13B (not shown) and the second insulating sheet (PET film) 18B (not shown) Since it becomes invisible from the outside, it is not necessary to consider the visibility of the wiring, such as reducing the wiring width. However, in the case where the light is not shielded by black solid printing on the protective cover glass 11B side, a surface treatment is required to prevent the drawing wiring from being recognized.

(Embodiment 4)
In the second embodiment, the blackening process is not performed so that any one of the plurality of first electrode wirings in the X direction is periodically visible, and the other is blackened so that the visibility is impossible. In addition, when any of the plurality of second electrode wirings in the Y direction is not subjected to blackening processing so as to be periodically visible, and the other is blackened so that the visibility is impossible. As described above, in the fourth embodiment, the surface unevenness treatment is not performed so that any one of the plurality of first electrode wirings in the X direction is periodically visible, and the other surface is irregularly reflected, for example, the surface unevenness. The surface roughness is not made so that the visibility is impossible by making the surface non-visible and any of the plurality of second electrode wirings in the Y direction is periodically visible, and the others are made surface uneven. The case where the visibility is made impossible by processing will be described. Here, as a technique for making the wiring pattern invisible, instead of thinning the wiring pattern or making it black, the uneven surface treatment is performed to suppress reflection on the wiring surface, so that the same line width can be seen or cannot be seen. To do.

  FIG. 10 is a plan view schematically showing a wiring pattern of the touch sensor panel according to Embodiment 4 of the present invention.

  As shown in FIG. 10, the touch sensor panel 1 </ b> C according to the fourth embodiment includes a sensor unit 2 </ b> C that allows a position input operation in the plan view region, and one side of each X direction and Y direction of the sensor unit 2 </ b> C. X-direction frame region 3C and Y-direction frame region 4C from which wiring is drawn out. The X-direction frame region 3C is the right side of the screen, the Y-direction frame region 4C is the lower side of the screen, and there are also frame regions on the upper side and the left side of the screen that are narrow in width. The sensor unit 2C is a central portion surrounded by these frame regions.

  In the sensor unit 2C, the plurality of first electrode wirings 44a and 44b indicated by solid lines parallel to each other in the X direction are respectively connected via the lead wiring 15C in the X direction frame region 3C and the wiring 22C on the cover glass 11C. They are gathered and pulled out in the end region 23C on the cover glass 11C. In addition, a plurality of second electrode wirings 49a and 49b indicated by broken lines in the Y direction in the sensor unit 2C are also connected to each other through the lead wiring 20C and the wiring 24C on the cover glass 11C, respectively. Collected in the area 25C and drawn. The wiring 22C of the end region 23C and the wiring 24C of the end region 25C on the cover glass 11C are connected to a control unit for position detection control (not shown).

  One or a plurality of first electrode wirings in the X direction in which the surface of the wiring pattern on the cover glass 11C side is roughened between the first electrode wirings 44a in the X direction whose surface is rectangular and whose surface is not roughened. 44b, and one or a plurality of second direction Y-directions in which the surface of the wiring pattern on the cover glass 11C side is made uneven between the second electrode wirings 49a in the Y-direction not subjected to surface unevenness treatment. Electrode wiring 49b is arranged. The size (horizontal pitch and vertical size) of the grid-like ruled lines that appear on the screen, depending on the number of wires in the surface roughening treatment (disappearance due to irregular reflection) interposed between the visible wirings that have not been surface roughened. Pitch) can be set.

  FIG. 11A is a partial perspective view of the first electrode wiring 44a and the second electrode wiring 49a having a rectangular cross section with a predetermined line width, and FIG. It is a partial perspective view of electrode wiring 44b and 2nd electrode wiring 49b.

  As shown in FIGS. 11 (a) and 11 (b), the surface unevenness treatment is not performed so that any one of the plurality of first electrode wirings in the X direction can be periodically seen, and the others The surface unevenness treatment is made impossible to be visible, and the surface unevenness treatment is not performed so that any one of the plurality of second electrode wirings in the Y direction is periodically visible, and the others A grid-like ruled line is formed on the screen by making the surface irregularity treatment to make it invisible. Since light is irregularly reflected on the surface on which the uneven surface of the upper surface is formed, the visibility of the wiring is lowered and the wiring becomes difficult to see. In this way, by changing the visibility depending on the presence or absence of surface unevenness processing on the upper surface of the wiring, making the wiring of the surface unevenness processing difficult to see, a grid-like ruled line that guides the drawing of characters and symbols on the screen Can be formed.

  Therefore, according to the fourth embodiment, the plurality of first electrode wirings 44a and 44b indicated by the solid lines in the X direction parallel to each other are not subjected to the surface unevenness treatment (uneven reflection treatment) and have the first visibility. A predetermined number of non-visible first electrode wires 44b having a surface irregularity treatment are provided between the electrode wires 44a, so that the pitch of the visible horizontal first electrode wires 44a is more reliably optimized. To do. Similarly, in the plurality of second electrode wirings 49a and 49b indicated by broken lines in the Y direction parallel to each other, surface unevenness is not provided between the visible second electrode wirings 49a that are not subjected to surface unevenness processing. A predetermined number of processed second electrode wirings 49b having no visibility are provided to optimize the pitch of the visible second electrode wirings 49a. In this way, in the plurality of first electrode wirings 44a and 44b and the plurality of second electrode wirings 49a and 49b orthogonal to the first electrode wirings 44a and 44b, one side is made visible depending on whether or not the surface is roughened, thereby forming a grid-like ruled line. On the other hand, visibility is lost and the size of the grid-like ruled lines is determined.

  As a result, the first insulating sheet (PET film) 13C (not shown) and the second insulating sheet (PET film) 18C (not shown) of the protective cover glass 11C side and the touch sensor panel 1C in advance. Compared with the conventional method of printing a grid-like ruled line on the board, the first insulating sheet (PET film) 13C (not shown) and the second insulating sheet (PET film) 18C (not shown) Since the grid-like ruled lines of the grid can be created at the same time as the wiring formation, the manufacturing cost is lower, and the electrode wiring pattern is not required, unlike the conventional method, which does not require cost increase or special ruled line display software or ruled line printing process. There is no need to align the grid lines with the grid-like ruled lines, and the grid-like ruled lines that serve as a guide for inputting characters and symbols can be easily formed.

  In the first to fourth embodiments, the grid-like ruled lines are formed depending on whether or not the wiring is visible. However, the present invention is not limited to this, and the wiring that can be seen is thick and thin in a plurality of stages. It may be visible as wiring. In addition, the grid-like ruled lines (lattice-like solid lines) that can be seen are used, but other horizontal ruled lines (a plurality of solid lines that are equally spaced in the horizontal direction) may be used. It may be a plurality of solid lines at equal intervals in the vertical direction).

  Although not specifically described in the third embodiment, a combination of the first embodiment and the fourth embodiment is used to form a plurality of first electrode wires in the X direction and a plurality of second electrode wires in the Y direction. It can be configured such that the presence or absence of visibility is clarified by the presence or absence of surface unevenness treatment (diffuse reflection treatment) with different line widths. Or, since it is difficult to make very thin wiring by etching, the entire surface is subjected to surface unevenness treatment (diffuse reflection treatment), and etching is made easier with thicker wiring, depending on the line width. It is also possible to distinguish the presence or absence of sex.

(Embodiment 5)
In Embodiment 4 described above, the surface unevenness treatment (irregular reflection treatment) is not performed so that any one of the plurality of first electrode wirings in the X direction can be periodically seen, and the other wirings are made surface unevenness. No surface irregularity treatment (irregular reflection treatment) is performed so as to make the visibility impossible by performing treatment (diffuse reflection treatment) and periodically making any of the plurality of second electrode wirings in the Y direction visible. In the fifth embodiment, the surface roughness of the other wirings (irregular reflection processing) is made impossible to be visible. In the fifth embodiment, any one of the plurality of first electrode wirings in the X direction (lateral direction) is used. In order to be periodically visible, the cross-sectional rectangle is wide, and the other electrode wirings are narrow-cross-sectional rectangles so as to be invisible, and a plurality of second directions in the Y direction (vertical direction) Any one of the electrode wirings can be periodically visible from the lateral direction. A triangular cross section as will be described in which the visibility impossible other wiring as narrow rectangular cross section.

  FIG. 12 is a partial perspective view of a second electrode wiring having a triangular cross section that is visible from the lateral direction in the fifth embodiment.

  As shown in FIG. 12, a vertical ruled line is formed on the screen by a cross-sectional triangle that is visible from the horizontal direction. Since the cross-sectional triangle reflects light in the horizontal direction, visibility from the side increases when an input operator who draws characters or symbols on the screen is next to the screen.

  A plurality of second electrode wirings 59a having a triangular cross section in the Y direction (vertical direction) are periodically arranged so as to be visible as a ruled line extending from the horizontal direction to the vertical direction. The second electrode wiring 59b (FIG. 11A) is made invisible as a narrow cross-sectional rectangle. The second electrode wiring 59a reflects in the horizontal direction due to its cross-sectional triangle, and the visibility decreases or becomes impossible for a viewer who views the screen from a position away from the front. In addition, a plurality of first electrode wirings 54a in the X direction (lateral direction) have a wide cross-sectional rectangle so as to be periodically visible, and a plurality of first electrode wirings 54b interposed therebetween are provided. As a result, it becomes impossible to see as a narrow cross-sectional rectangle, and as a result, a grid-like ruled line for guiding the drawing of characters and symbols is formed on the screen.

  On a large screen, a viewer looks at the screen from the front, but the input operator stands next to the screen and writes characters and the like. For this reason, the input operator views the plurality of second electrode wirings 59a and 59b in the Y direction (vertical direction) from an oblique side. By making the cross section of the plurality of second electrode wirings 59a triangular, light is reflected by the inclined surface corresponding to the inclined side of the triangular cross section, the visibility from the oblique side of the screen is improved, and from the front Since the visibility is lowered, when the input operator looks at the screen obliquely from the side, the vertical ruled line and the horizontal ruled line can be seen, and the viewer can see only the horizontal ruled line from the front. As a result, it is possible to obtain an effect that the visibility of the screen is improved by the amount that the visibility of the vertical ruled line is lowered from a viewer viewing from a distance.

  Therefore, according to the fifth embodiment, as shown in FIG. 10, the plurality of first electrode wirings 54 a and 54 b indicated by solid lines in the X direction (lateral direction) parallel to each other has a wide periodic and visible width. A predetermined number of narrow first electrode wirings 54b having no visibility are provided between the first electrode wirings 54a, so that the pitch of the visible first electrode wirings 54a can be more reliably optimized. To do. Similarly, in the plurality of second electrode wirings 59a and 59b indicated by broken lines in the Y direction (vertical direction) parallel to each other, between the second electrode wirings 49a having a triangular section that is periodically visible from the lateral direction. A predetermined number of narrow second electrode wirings 59b with no visibility are provided to optimize the pitch of the vertical second electrode wirings 59a with visibility. As described above, the plurality of first electrode wirings 54a and 54b and the plurality of second electrode wirings 59a and 59b orthogonal to the first electrode wirings 54a and 54b are provided with visibility in the vertical direction by the cross-sectional triangle of the second electrode wiring 59a. Form vertical ruled lines.

  As a result, the first insulating sheet (PET film) 13D (not shown) and the second insulating sheet (PET film) 18D (not shown) of the protective cover glass 11D and the touch sensor panel 1D are preliminarily provided. Compared with the conventional method of printing a grid-like ruled line on a grid, the first insulating sheet (PET film) 13D (not shown) and the second insulating sheet (PET film) 18D (not shown) Since the grid-like ruled lines of the grid can be created at the same time as the wiring formation, the manufacturing cost is lower, and the electrode wiring pattern is not required, unlike the conventional method, which does not require cost increase or special ruled line display software or ruled line printing process. There is no need to align the grid lines with the grid-like ruled lines, and the grid-like ruled lines that serve as a guide for inputting characters and symbols can be easily formed.

  In the fifth embodiment, among the plurality of first electrode wirings 54a and 54b and the plurality of second electrode wirings 59a and 59b orthogonal thereto, the sectional triangle is only the second electrode wiring 59a in the vertical direction. However, the present invention is not limited to this, and the plurality of first electrode wirings 54a and 54b and the plurality of second electrode wirings 59a and 59b orthogonal thereto may be triangular in cross section. In this case, the bottom length of the cross-sectional triangle may be a wiring width, the line width may be wide to obtain visibility, and the line width may be narrowed to make visibility impossible. All of the plurality of first electrode wirings 54a and 54b and the plurality of second electrode wirings 59a and 59b perpendicular to the plurality of first electrode wirings 54a and 54b can be formed into a sectional triangle, and the sectional triangle can be formed all at once by wet etching with respect to a copper material. . In any case, the cross-sectional triangle is a plurality of first electrode wirings 54a and 54b and a plurality of second electrode wirings 59a that are at least one of the plurality of second electrode wirings 59a and 59b orthogonal thereto. I just need it.

  Although not specifically described in the fifth embodiment, the embodiment 5 can be combined with the above-described liquid 2 or 4, and in the fifth embodiment, the plurality of first electrode wirings 54a and 54b are both provided. There may be no visibility.

(Embodiment 6)
In the fifth embodiment, any one of the plurality of first electrode wirings in the X direction (lateral direction) has a wide cross-sectional rectangle so as to be periodically visible, and the other electrode wirings have a narrow cross-section. The rectangular shape is made invisible as a rectangle, and one of the plurality of second electrode wirings in the Y direction (vertical direction) has a triangular cross section so as to be periodically visible from the horizontal direction, and the other wirings Although the case where the visibility is made invisible as a narrow cross-sectional rectangle has been described, in the sixth embodiment, any one of the plurality of first electrode wirings in the X direction (lateral direction) can be periodically visible. In this way, the rectangular cross section has a wide cross-sectional rectangle, and the other electrode wirings have a narrow cross-sectional rectangle to be invisible, and any one of a plurality of second electrode wirings in the Y direction (vertical direction) is periodically crossed. A trapezoidal cross section so that it can be seen from any direction, otherwise Description will be given of a case where wiring has been visibility impossible as narrow rectangular cross section.

  FIG. 13 is a partial perspective view of the second electrode wiring having a trapezoidal cross section that is visible from the lateral direction in the sixth embodiment.

  As shown in FIG. 13, a vertical ruled line is formed on the screen by a cross-sectional trapezoid that is visible from the horizontal direction. In the trapezoidal cross section, light is reflected in the horizontal direction on the slope, so that the visibility from the side increases when an input operator who draws characters or symbols on the screen is next to the screen. Note that the surface corresponding to the upper side of the trapezoidal cross section is subjected to a blackening process or an uneven process to suppress visibility.

  A plurality of second electrode wirings 69a having a trapezoidal cross section in the Y direction (longitudinal direction) are periodically arranged so as to be visible as ruled lines in the vertical direction from the horizontal direction, and a second intervening therebetween. The electrode wiring 69b (FIG. 11A) is made invisible as a narrow cross-sectional rectangle. The second electrode wiring 69a reflects in the lateral direction due to its trapezoidal cross section, and the visibility decreases or becomes impossible for a viewer who views the screen from a position away from the front. In addition, a plurality of first electrode wirings 64a in the X direction (lateral direction) have a wide cross-sectional rectangle so as to be periodically visible, and a plurality of first electrode wirings 64b interposed therebetween are provided. A grid-like ruled line that guides the drawing of characters and symbols is formed on the screen, making it invisible as a narrow cross-sectional rectangle.

  On a large screen, a viewer looks at the screen from the front, but the input operator stands next to the screen and writes characters and the like. For this reason, the input operator views the plurality of second electrode wirings 69a and 69b in the Y direction (vertical direction) from an oblique side. By making the cross section of the plurality of second electrode wirings 69a trapezoidal, the reflection from the inclined surface of the trapezoidal shape increases the visibility from an oblique side of the screen and decreases the visibility from the front. When the viewer looks at the screen obliquely from the side, the horizontal ruled lines and the vertical ruled lines can be seen, and from the front, the viewer can make the horizontal ruled lines disappear and only the horizontal ruled lines can be seen. As a result, it is possible to obtain an effect that the visibility of the screen is improved by the amount that the visibility of the vertical ruled line is lowered from a viewer viewing from a distance.

  Therefore, according to the sixth embodiment, as shown in FIG. 10, the plurality of first electrode wirings 64 a and 64 b indicated by solid lines in the X direction (lateral direction) parallel to each other has a wide periodic and visible width. A predetermined number of narrow first electrode wirings 64b having no visibility are provided between the first electrode wirings 64a, so that the pitch of the visible first electrode wirings 64a can be more reliably optimized. To do. Similarly, in the plurality of second electrode wirings 69a and 69b indicated by broken lines in the Y direction (vertical direction) parallel to each other, between the second electrode wirings 69a having a trapezoidal cross section that is periodically visible from the lateral direction. A predetermined number of second electrode wirings 69b having a narrow width and a rectangular cross section without visibility are provided to optimize the pitch of the vertical second electrode wirings 69a with visibility. In this way, in the plurality of first electrode wirings 64a and 64b and the plurality of second electrode wirings 69a and 69b orthogonal thereto, the cross-sectional trapezoid of the second electrode wiring 69a is provided with visibility in the vertical direction. Form vertical ruled lines.

  As a result, the first insulating sheet (PET film) 13E (not shown) and the second insulating sheet (PET film) 18E (not shown) of the protective cover glass 11E and the touch sensor panel 1E are previously provided. Compared with the conventional method of printing a grid-like ruled line on a grid, the first insulating sheet (PET film) 13E (not shown) and the second insulating sheet (PET film) 18E (not shown) Since the grid-like ruled lines of the grid can be created at the same time as the wiring formation, the manufacturing cost is lower, and the electrode wiring pattern is not required, unlike the conventional method, which does not require cost increase or special ruled line display software or ruled line printing process. There is no need to align the grid lines with the grid-like ruled lines, and the grid-like ruled lines that serve as a guide for inputting characters and symbols can be easily formed.

  In the sixth embodiment, among the plurality of first electrode wirings 64a and 64b and the plurality of second electrode wirings 69a and 69b orthogonal thereto, the trapezoidal cross section is only the second electrode wiring 69a in the vertical direction. However, the present invention is not limited to this, and the plurality of first electrode wirings 64a and 64b and the plurality of second electrode wirings 69a and 69b orthogonal thereto may be trapezoidal in cross section. In this case, the bottom length of the trapezoidal cross section is the wiring width, the line width is widened to obtain visibility, and the line width is narrowed to make visibility impossible. All of the plurality of first electrode wirings 64a and 64b and the plurality of second electrode wirings 69a and 69b perpendicular to the plurality of first electrode wirings 64a and 69b are formed into a trapezoidal cross section, and all are collectively formed into a trapezoidal cross section by wet etching with respect to a copper material Can do. In any case, the trapezoidal cross section is composed of the plurality of first electrode wirings 64a and 64b and the plurality of second electrode wirings 69a and 69b orthogonal to the plurality of second electrode wirings 69a having at least visibility. I just need it.

  In the sixth embodiment, the plane corresponding to the upper side of the cross-sectional trapezoid is configured to suppress visibility by performing blackening processing or uneven processing. The upper plane between the sides does not need to be subjected to blackening processing or uneven processing. In this case, the function of suppressing the visibility of the wiring viewed from the front is lowered.

  Although not specifically described in the sixth embodiment, the upper surface may be blackened (antireflection treatment) or the surface may be roughened with a chemical solution as irregular reflection treatment. Thereafter, wet etching treatment is performed to process both side surfaces as inclined surfaces to form a trapezoidal cross section.

  Although not specifically described in the sixth embodiment, the above-described liquid 2 or 4 can be combined with the sixth embodiment, and the plurality of first electrode wirings 64a and 64b are both combined in the sixth embodiment. There may be no visibility.

(Embodiment 7)
In Embodiments 5 and 6 described above, one of the plurality of first electrode wirings in the X direction (lateral direction) has a wide cross-sectional rectangle so as to be periodically visible, and the other electrode wirings are narrow. The cross-sectional rectangle or the trapezoidal cross-section so that any of the plurality of second electrode wirings in the Y direction (longitudinal direction) can be periodically viewed from the horizontal direction. The case where the other wiring is made invisible as a narrow cross-sectional rectangle has been described. In the seventh embodiment, any one of the plurality of first electrode wirings in the X direction (lateral direction) is periodically arranged. Any of the plurality of second electrode wirings in the Y direction (longitudinal direction) that has a wide cross-sectional rectangle so that it can be viewed, and the other electrode wirings have a narrow cross-sectional rectangular shape and cannot be viewed. The cross section so that it is visible from the lateral direction periodically Circular, and cross-sectional semi-elliptical or cross semicylindrical, description will be given of the case where the visibility impossible other wiring as narrow rectangular cross section.

  FIG. 14 is a partial perspective view of a second electrode wiring having a semi-cylindrical cross section that is visible from the lateral direction in the seventh embodiment.

  As shown in FIG. 14, a vertical ruled line having visibility on a screen is formed by a cross-sectionally kamaboko shape (or a semicircular shape or a semi-elliptical shape) that is visible from the horizontal direction. Since the cross-section of the semi-cylindrical shape reflects light in the horizontal direction on the curved surface, visibility from the side is enhanced when an input operator who draws characters or symbols on the screen is next to the screen.

  A plurality of second electrode wirings 79a having a semi-cylindrical cross section in the Y direction (longitudinal direction) are periodically arranged so as to be visible as ruled lines from the horizontal direction to the vertical direction, and the second electrode wirings 79a interposed therebetween are arranged. The second electrode wiring 79b (FIG. 11A) is made invisible as a narrow cross-sectional rectangle. Reflection of the second electrode wiring 79a is diffused to the surroundings due to the cross-section of the second electrode wiring 79a, and the visibility is lowered or impossible for a viewer who views the screen from a position away from the front. In addition, the plurality of first electrode wirings 74a in the X direction (lateral direction) are made to have a wide cross-sectional rectangle so as to be periodically visible, and the plurality of first electrode wirings 74b interposed therebetween are arranged. Vertical and horizontal grid-like lines that guide the drawing of characters and symbols are formed on the screen so that the rectangular cross-section rectangle is not visible.

  On a large screen, a viewer looks at the screen from the front, but the input operator stands next to the screen and writes characters and the like. For this reason, the input operator sees the plurality of second electrode wirings 79a and 79b in the Y direction (vertical direction) obliquely from the side. By making the cross section of the plurality of second electrode wirings 69a trapezoidal, the reflection from the inclined surface of the trapezoidal shape increases the visibility from an oblique side of the screen and decreases the visibility from the front. When the viewer looks at the screen obliquely from the side, the horizontal ruled lines and the vertical ruled lines can be seen, and from the front, the viewer can make the horizontal ruled lines disappear and only the horizontal ruled lines can be seen. As a result, it is possible to obtain an effect that the visibility of the screen is improved by the amount that the visibility of the vertical ruled line is lowered from a viewer viewing from a distance.

  Therefore, according to the seventh embodiment, as shown in FIG. 10, a plurality of first electrode wirings 74a and 74b indicated by solid lines in the X direction (lateral direction) parallel to each other have a wide width that is periodic and visible. A predetermined number of narrow first electrode wirings 74b having no visibility are provided between the first electrode wirings 74a to optimize the pitch of the horizontal first electrode wirings 74a having visibility. Similarly, in the plurality of second electrode wirings 79a and 79b indicated by broken lines in the Y direction (vertical direction) parallel to each other, between the second electrode wirings 79a having a semi-cylindrical cross section that is periodically visible from the lateral direction. Further, a predetermined number of second electrode wirings 79b having a narrow width and a rectangular cross section with no visibility are provided to optimize the pitch of the vertical second electrode wirings 79a with visibility. As described above, the plurality of first electrode wirings 74a and 74b and the plurality of second electrode wirings 79a and 79b orthogonal to the first electrode wirings 74a and 74b are vertically visible due to the cross-sectionally curved surface of the second electrode wiring 79a. A vertical ruled line can be formed.

  As a result, the first insulating sheet (PET film) 13F (not shown) and the second insulating sheet (PET film) 18F (not shown) of the protective cover glass 11F and the touch sensor panel 1F in advance. Compared with the conventional method of printing a grid-like ruled line on a grid, the first insulating sheet (PET film) 13F (not shown) and the second insulating sheet (PET film) 18F (not shown) Since the grid-like ruled lines of the grid can be created at the same time as the wiring formation, the manufacturing cost is lower, and the electrode wiring pattern is not required, unlike the conventional method, which does not require cost increase or special ruled line display software or ruled line printing process. There is no need to align the grid lines with the grid-like ruled lines, and the grid-like ruled lines that serve as a guide for inputting characters and symbols can be easily formed.

  In the seventh embodiment, among the plurality of first electrode wirings 74a and 74b and the plurality of second electrode wirings 79a and 79b perpendicular to the plurality of first electrode wirings 74a and 74b, the cross-section of the cross section is only the second electrode wiring 79a in the vertical direction. However, the present invention is not limited to this, and the plurality of first electrode wirings 74a and 74b and the plurality of second electrode wirings 79a and 79b orthogonal to the first electrode wirings 74a and 74b may have a semi-cylindrical cross section. In this case, the bottom length of the semi-cylindrical cross section is the wiring width, the line width is widened to obtain visibility, and the line width is narrowed to make visibility impossible. The plurality of first electrode wirings 74a and 74b and the plurality of second electrode wirings 79a and 79b perpendicular to the plurality of first electrode wirings 74a and 74b are all formed into a cross-section shape by wet etching or the like for a copper material. be able to. In any case, the cross-sectionally kamaboko shape has a plurality of second electrode wirings 79a having at least visibility among the plurality of first electrode wirings 74a and 74b and the plurality of second electrode wirings 79a and 79b orthogonal thereto. If it is.

  In addition, in this Embodiment 7, although comprised so that the visibility from a side could be acquired as a cross-section kamaboko shape, it may replace with a cross-sectional kamaboko shape and may be a semicircle or semi-elliptical cross section.

  In the first to seventh embodiments, the case where all the wiring patterns are actually used wirings (continuous wirings) has been described. However, the present invention is not limited to this. It is also possible to arrange the wiring having a visible line width like a grid using dummy wirings or GND wirings other than the actual wiring. In short, the grid-like ruled lines of the first to seventh embodiments can be realized by using dummy wirings or GND wirings other than the actual use wirings. This case will be described in the following eighth and ninth embodiments.

  Although not specifically described in the seventh embodiment, the above-described embodiment liquid 2 or 4 can be combined with the seventh embodiment, and a plurality of first electrode wirings 54a and 54b are both combined in the seventh embodiment. There may be no visibility.

(Embodiment 8)
In the first to seventh embodiments, the actual use wiring (first electrode wiring and second electrode wiring) is used to provide visibility as a grid-like ruled line (only a horizontal ruled line or a vertical ruled line may be used). In the eighth embodiment, a case will be described in which visibility is provided as a grid-like ruled line (only a horizontal ruled line or a vertical ruled line may be used) by using a dummy wiring or a GND wiring other than the actually used wiring. At this time, although the actually used wiring does not have visibility, the actually used wiring can also have visibility.

  FIG. 15 is a plan view schematically showing a wiring pattern of the touch sensor panel according to the eighth embodiment of the present invention.

  As shown in FIG. 15, the touch sensor panel 1G according to the eighth embodiment includes a sensor unit 2G that enables a position input operation in the plan view region, and one side of each X direction and Y direction of the sensor unit 2G. X-direction frame region 3G and Y-direction frame region 4G from which wiring is drawn out. The X-direction frame region 3G is the right side of the screen, the Y-direction frame region 4G is the lower side of the screen, and there are also frame regions on the upper and lower sides of the screen that are narrow in width. The sensor unit 2G is a central portion surrounded by these frame regions.

  The plurality of first electrode wirings 5 indicated by solid lines in the X direction are connected to each other through the lead wiring 15G and the wiring 22G on the cover glass 11G, respectively, and are gathered and drawn out in the end region 23G on the cover glass 11G. ing. Further, the plurality of second electrode wirings 6 indicated by broken lines in the Y direction are also connected through the lead wiring 20G and the wiring 24G on the cover glass 11G, respectively, and gather in the end region 25G on the cover glass 11G. Has been pulled out. The wiring 22G in the end region 23G and the wiring 24G in the end region 25G on the cover glass 11G are connected to a control unit for position detection control (not shown). The plurality of first electrode wirings 5 and the plurality of second electrode wirings 6 orthogonal to the plurality of first electrode wirings 5 are continuously formed with a narrow line width so that there is no visibility in the sensor unit 2G.

  In the wiring pattern, a dummy wiring or GND wiring 7 with a visible line width indicated by a solid line provided at a central position between adjacent first electrode wirings 5 in the X direction and an adjacent Y direction indicated by a broken line. A dummy wiring or GND wiring 8 having a visible line width provided at a central position between the second electrode wirings 6 is provided, and each arrangement pitch of the dummy wirings or GND wirings 7 and 8 is set to a screen size. It is set to fit the size of the characters and symbols drawn according to. In addition, the dummy wirings or GND wirings 7 and 8 are provided at positions corresponding to the arrangement pitch between the adjacent first electrode wirings 5 and between the adjacent second electrode wirings 6. There is no adverse effect on the original position detection control.

  By visually recognizing dummy wirings or GND wirings 7 and 8 having a wide wiring pattern line width, the input operator can be seen as a grid-like ruled line on the grid, and characters and symbols drawn there The arrangement size of the grid-like ruled lines is adapted to the size.

  The input operator who performs position input using the touch sensor panel 1G needs vertical and horizontal grids and vertical or horizontal ruled lines, and visually sees the image displayed through the touch sensor panel 1G from the display device. The user does not need a grid or ruled line on the screen. For this reason, the wiring width of the dummy wirings or GND wirings 7 and 8 necessary for forming the grids and ruled lines depends on the optical visibility at the viewing distance from the input operator's eyes to the screen of the touch sensor panel 1G.

  Etching or printed wiring is used to process the first electrode wiring 5 having a different line width and the second electrode wiring 6, the dummy wiring or the GND wirings 7 and 8 orthogonal to the first electrode wiring 5. The line width of the wiring pattern may be such that a grid-like ruled line can be visually recognized at a position where characters and symbols are drawn. Here, as a technique for making the wiring pattern invisible, the line width of the wiring pattern is reduced, and the line width is increased so that the grid-like ruled lines can be visually recognized. This processing does not add a new process separately, but can create a grid-like ruled line on the grid simultaneously with the wiring formation process, so that a visible grid-like ruled line can be efficiently formed.

  Therefore, according to the eighth embodiment, as shown in FIG. 15, in the plurality of first electrode wirings 5 indicated by the solid lines in the X direction (lateral direction) parallel to each other, the adjacent narrow first ones without visibility. A visible wide dummy wiring or GND wiring 7 is provided periodically between any one of the electrode wirings 5 to optimize the arrangement pitch. Similarly, in the plurality of second electrode wirings 6 indicated by broken lines in the Y direction (longitudinal direction) parallel to each other, periodically between any adjacent second electrode wirings 6 having no visibility. A wide dummy wiring or GND wiring 8 having visibility is provided to optimize the arrangement pitch. As described above, the visible dummy wirings or GND wirings 7 and 8 are periodically provided at a predetermined pitch between the plurality of first electrode wirings 5 and the plurality of second electrode wirings 6 orthogonal thereto. A grid-like ruled line can be formed on the screen.

  Accordingly, the first insulating sheet (PET film) 13G (not shown) and the second insulating sheet (PET film) 18G (not shown) of the protective cover glass 11G and the touch sensor panel 1G are previously provided. Compared to the conventional method of printing grid-like ruled lines on the board, the first insulating sheet (PET film) 13G (not shown) and the second insulating sheet (PET film) 18G (not shown) Since the grid-like ruled lines of the grid can be created at the same time as the wiring formation, the manufacturing cost is lower, and the electrode wiring pattern is not required, unlike the conventional method, which does not require cost increase or special ruled line display software or ruled line printing process. There is no need to align the grid lines with the grid-like ruled lines, and the grid-like ruled lines that serve as a guide for inputting characters and symbols can be easily formed.

(Embodiment 9)
In the eighth embodiment, a case has been described in which a dummy wiring other than the actually used wiring (the first electrode wiring and the second electrode wiring) or the GND wiring is used to provide visibility as a grid-like ruled line. In the ninth aspect, instead of the dummy wiring and the GND wiring, a predetermined area is surrounded by a plurality of first electrode wirings 5 with no visibility and a plurality of second electrode wirings 6 with no visibility perpendicular thereto. A description will be given of a case where a visible floating mark (mark) is provided periodically at a pitch to form a grid-like broken line (dot pattern) on the screen. At this time, although the actually used wiring does not have visibility, the actually used wiring can also have visibility.

  FIG. 16 is a plan view schematically showing a wiring pattern of the touch sensor panel according to the ninth embodiment of the present invention.

  As shown in FIG. 16, the touch sensor panel 1H according to the eighth embodiment includes a sensor unit 2G that enables a position input operation in the plan view region, and one side of each X direction and Y direction of the sensor unit 2G. X-direction frame region 3G and Y-direction frame region 4G from which wiring is drawn out. The X-direction frame region 3G is the right side of the screen, the Y-direction frame region 4G is the lower side of the screen, and there are also frame regions on the upper and lower sides of the screen that are narrow in width. The sensor unit 2G is in an area surrounded by these frame areas.

  The plurality of first electrode wirings 5 indicated by solid lines in the X direction are connected to each other through the lead wiring 15G and the wiring 22G on the cover glass 11G, respectively, and are gathered and drawn out in the end region 23G on the cover glass 11G. ing. Further, the plurality of second electrode wirings 6 indicated by broken lines in the Y direction are also connected through the lead wiring 20G and the wiring 24G on the cover glass 11G, respectively, and gather in the end region 25G on the cover glass 11G. Has been pulled out. The wiring 22G in the end region 23G and the wiring 24G in the end region 25G on the cover glass 11G are connected to a control unit for position detection control (not shown). The plurality of first electrode wirings 5 and the plurality of second electrode wirings 6 orthogonal to the plurality of first electrode wirings 5 are continuously formed with a narrow line width so that there is no visibility in the sensor unit 2G.

  In the wiring pattern, predetermined vertical and horizontal pitches in a region (here, the center position) surrounded by the plurality of first electrode wirings 5 with no visibility and the plurality of second electrode wirings 6 with no visibility perpendicular thereto. Periodically (here, every other one), dots 9 (here circular but may be quadrangular) are respectively provided as visible marks in a floating state with visibility, and vertical and horizontal dotted lines on the screen (Dot pattern) is formed. The arrangement pitch of the vertical and horizontal dots 9 is set so as to match the size of the characters and symbols drawn according to the screen size. In addition, the dots 9 (for example, a circle) as a visible floating state mark are in a region surrounded between the adjacent first electrode wirings 5 and between the adjacent second electrode wirings 6 orthogonal to the first electrode wirings 5. However, it does not adversely affect the original position detection control of the touch sensor panel 1G.

  By visually recognizing a plurality of continuous dots 9 (for example, a circle) vertically and horizontally as a mark having an area area with visibility at a predetermined pitch, the input operator can be seen as a grid-like broken line on the grid. The arrangement size of the broken lines is adapted to the size of the characters and symbols drawn there.

  The input operator who performs position input using the touch sensor panel 1H needs the vertical and horizontal squares and the vertical or horizontal broken line, and visually sees the image displayed through the touch sensor panel 1H from the display device. The user does not need a grid or broken line on the screen. For this reason, the area area of the dots 9 (for example, a circle) necessary for forming the squares and broken lines depends on the optical visibility at the viewing distance from the input operator's eyes to the screen of the touch sensor panel 1H.

  Etching or printed wiring is used to process the first electrode wiring 5 having a different line width and the second electrode wiring 6 (for example, a circle) perpendicular to the first electrode wiring 5. The line width of the wiring pattern may be such that a grid-like broken line (vertical ruled lines and / or horizontal ruled lines by a plurality of dots 9 or only one of them) can be visually recognized at a position near where characters or symbols are drawn. Here, as a technique for making the wiring pattern invisible, the line width of the wiring pattern is narrowed, and the dot area is set so that the grid-like broken line can be visually recognized. This processing does not add a new process separately, but can create a grid-like broken line (a plurality of dots 9) of the grid simultaneously with the wiring formation process, so that a visible grid-like broken line is efficiently formed. be able to.

  Therefore, according to the ninth embodiment, as shown in FIG. 16, a plurality of first electrode wirings 5 indicated by solid lines in the X direction (lateral direction) parallel to each other and a plurality of second electrode wirings orthogonal thereto. 6, periodic in either the vertical direction or the horizontal direction between the adjacent narrow first electrode wirings 5 without visibility and between the adjacent narrow second electrode wirings 6 without visibility. In addition, a plurality of dots 9 having visibility are provided to optimize the arrangement pitch. In this manner, a plurality of visible dots 9 can be provided periodically at predetermined vertical and horizontal pitches to form a visible dashed dotted line on the screen.

  As a result, the first insulating sheet (PET film) 13H (not shown) and the second insulating sheet (PET film) 18H (not shown) of the protective cover glass 11G and the touch sensor panel 1H are previously provided. Compared with the conventional method of printing a grid-like ruled line on a grid, the first insulating sheet (PET film) 13H (not shown) and the second insulating sheet (PET film) 18H (not shown) Since the grid-like broken lines of the grid can be created at the same time as the wiring formation, the manufacturing cost is lower, and the electrode wiring pattern is not required, unlike the conventional method, which does not require a cost increase or special ruled line display software or ruled line printing process. There is no need to align the grid lines with the grid-like ruled lines, and a grid-like broken line that serves as a guide for inputting characters and symbols can be easily formed.

  Although not specifically described in the ninth embodiment, at least one of the first insulating sheet (PET film) 13H (not shown) and the second insulating sheet (PET film) 18H (not shown). What is necessary is just to provide.

  In the ninth embodiment, a plurality of dots 9 (circular or quadrangular) constituting a visible grid-like broken line are provided. However, the present invention is not limited to this, and the visibility is not limited as shown in FIGS. 17 and 18. As a mark in a certain floating state, there may be a plurality of round crosses 91 (or square crosses) or a plurality of − characters 92 constituting a grid-like broken line. In addition, as shown in FIG. 19, a cross or T-shape that forms a grid-like broken line is also conceivable as a visible mark in a floating state.

  Although not specifically described in the first to ninth embodiments, at least two of the first to ninth embodiments can be appropriately selected from the first to ninth embodiments and combined.

(Embodiment 10)
In the tenth embodiment, a touch sensor system 10 using any one of the touch sensor panels 1 and 1A to 1J of the first to ninth embodiments will be described.

  FIG. 20 is a block diagram illustrating an example of the overall configuration of the touch sensor system 10 according to the tenth embodiment of the present invention.

  20, the touch sensor system 10 according to the tenth embodiment includes a display device 31 having a display screen for image display, and any one of touch sensor panels 1 and 1A to 1J for position detection provided on the display screen. The connection part 32 such as a flexible printed circuit board (FPC) connected to any one of the touch sensor panels 1 and 1A to 1J, the control board 33 connected to the connection part 32, and the control board 33 are mounted. A controller unit 34 that performs position detection control processing, a connection cable 35 that is connected to the controller unit 34 via the control board 33, a connection that is connected to the controller unit 34 via the connection cable 35, and that is connected to the display device 31 for display. And a host terminal 36 for controlling the display of the device 31.

  Any one of the touch sensor panels 1, 1A to 1J is provided in parallel with each other along the touch panel surface, and has a plurality of drive lines (for example, second electrode wirings) to which drive signals are respectively given, and A plurality of sense lines (for example, first electrode wiring) provided in parallel with each other along the touch panel surface so as to intersect with a plurality of drive lines (stereoscopic intersection; vertical intersection and intersection at other angles) ing. Any one of the touch sensor panels 1, 1 </ b> A to 1 </ b> J can output an output signal corresponding to a change in capacitance due to an indicator (such as a finger or a touch pen) that is in contact with or close to the touch sensor panel 1. The plurality of output signals from the plurality of sense lines are signals that are output via the intersection P of the drive line and the sense line (both dotted lines) in the touch panel surface and the vicinity thereof when the drive line is driven. .

  If an indicator such as a finger or a pen is in contact with or close to the touch panel surface, the signal from the sense line changes. That is, the signal obtained by this sense line is used to obtain the position information (x, y) of the two-dimensional detection area indicating the presence or absence of contact or proximity to the instruction detection area and the information (z) of the capacitance by the indicator. It becomes a signal indicating the three-dimensional coordinate information shown. As the Z value of the capacitance information (z) decreases, the signal level indicating the capacitance value decreases.

  The display device 31 only needs to display an image on a display screen in addition to a liquid crystal display (liquid crystal display device), a plasma display, an organic EL display, an electrolytic emission display, and the like.

  The controller unit 34 drives each drive line and processes a signal from each sense line to detect the touch position and touch shape (conductive pattern detection region) of the indicator on the touch panel surface.

  The host terminal 36 is configured by a personal computer or the like, and controls the controller unit 34 via the connection cable 35 and also detects the position of the indicator detected by the controller unit 34 (position information (x, y of touch instruction detection area)). )) And the electrostatic capacity information (z), the display of the image displayed on the display screen of the display device 31 is made controllable.

  Further, the host terminal 36 connected to the touch sensor system 10 may be on the server side like a cloud service, and the touch sensor system 10 itself can have the function of the host terminal 36 to control the display. It is.

  Therefore, in the touch sensor system 10 according to the tenth embodiment, the display device 31 as a display unit displays an image according to the input position where the indicator is touched or operated in proximity to the touch sensor surface, and the indicator is displayed on the touch sensor surface. At least one of a plurality of horizontal lines, a plurality of vertical lines, and vertical and horizontal grid lines is visible on the touch sensor surface from the operator who performs the position input operation, and touches more than the operator located next to the touch sensor surface. From a viewer who confirms the image displayed by the display device 31 through the touch sensor surface at a front position away from the sensor surface, at least one of the plurality of horizontal lines, the plurality of vertical lines, and the vertical and horizontal grid lines is difficult to see. It can be configured to be.

  In the first to ninth embodiments, any one of the touch sensor panels 1 and 1A to 1J for detecting the position by bringing an indicator (finger or touch pen) into contact with or in proximity to the touch sensor surface. The sensor surface has a plurality of horizontal lines (including horizontal ruled lines or horizontal broken lines (including dot patterns)), a plurality of vertical lines (including vertical ruled lines or vertical broken lines (including dot patterns)), and vertical and horizontal grids from the pattern including the wiring pattern. At least one of the lines (including vertical and horizontal grid lines or vertical and horizontal grid lines) is configured to be visible. The pattern including this wiring pattern includes at least a plurality of first electrode wirings and at least a plurality of first electrode wirings among a plurality of second electrode wirings, dummy wirings, GND wirings, and dots (dot patterns) orthogonal thereto. And a plurality of second electrode wirings.

  As mentioned above, although this invention has been illustrated using preferable Embodiment 1-10 of this invention, this invention should not be limited and limited to this Embodiment 1-10. It is understood that the scope of the present invention should be construed only by the claims. It is understood that those skilled in the art can implement an equivalent range from the description of specific preferred embodiments 1 to 10 of the present invention based on the description of the present invention and the common general technical knowledge. Patents, patent applications, and documents cited herein should be incorporated by reference in their entirety, as if the contents themselves were specifically described herein. Understood.

  The present invention is used in, for example, a smart phone, a personal computer (PC), a tablet terminal, an electronic blackboard, and the like, and particularly used in a large display device, and enables a touch or multi-touch input operation and the touch sensor. In the field of touch sensor systems that detect the position of operation performed on the panel and display according to the detected position, there is no need for cost increase, special software or ruled line printing process, and electrode wiring pattern and grid pattern Therefore, it is possible to easily form a ruled line that serves as a guide for a position input operation.

DESCRIPTION OF SYMBOLS 1, 1A-1J Touch sensor panel 2, 2A-2G Sensor part 3, 3A-3G X direction frame area 4, 4A-4G Y direction frame area 5 1st electrode wiring without visibility 6 2nd without visibility Electrode wiring 7, 8 Dummy wiring or GND wiring 9 Dots (for example, circles) as marks
91 Round Cross as Mark (Mark) 92-Character as Mark (Mark) 10 Touch Sensor System 11, 11A-11G Cover Glass 12, 17, 12A, 17A Transparent Adhesive Tape Material 13, 13A-13G First Insulation Sheet (PET film)
14, 14a, 14b, 24a, 24b, 34a, 34b, 44a, 44b, 54a, 54b, 64a, 64b, 74a, 74b First electrode wiring 15, 20, 15A to 15G, 20A to 20G Lead wiring 16, 16A 1st wiring part 18, 18A-18G 2nd insulating sheet (PET film)
19a, 19b, 29a, 29b, 39a, 39b, 49a, 49b, 59a, 59b, 69a, 69b, 79a, 79b Second electrode wiring 21, 21A Second wiring part 22, 24, 22A-22G, 24A- 24G Wiring on cover glass 23, 25, 23A to 23G, 25A to 25G, end region 24c Blackening processing unit 31 Display device 32 Connection unit 33 Control board 34 Controller unit 35 Connection cable 36 Host terminal P Intersection

Claims (7)

  A touch sensor panel for detecting a position where an indicator is in contact with or close to a touch sensor surface, wherein the touch sensor surface includes a plurality of horizontal lines, a plurality of vertical lines, and vertical and horizontal grid lines from a pattern including a wiring pattern. A touch sensor panel configured such that at least one of them is visible.   The pattern including the wiring pattern includes a plurality of first electrode wirings and a plurality of second electrode wirings orthogonal to the first electrode wirings, one or a plurality of dummy wirings, one or a plurality of GND wirings, and one or a plurality of dots. The touch sensor panel according to claim 1, wherein the touch sensor panel includes at least the plurality of first electrode wirings and the plurality of second electrode wirings.   The touch sensor panel according to claim 2, wherein the pattern including the wiring pattern includes a wiring that is visible and a wiring that is not visible to at least one of the dots.   The touch sensor panel according to claim 3, wherein the visible wiring and the non-visible wiring are due to a difference in line width of the wiring.   5. The touch sensor panel according to claim 3, wherein at least one of the visible wiring and the non-visible wiring with the dots is a touch sensor panel according to presence or absence of surface antireflection treatment, blackening treatment, or surface irregular reflection treatment.   6. The wiring according to claim 3, wherein at least one of the visible wiring and the dot and the non-visible wiring is a triangular or trapezoidal cross section, a semicircular cross section, a semielliptical cross section, and a semi-circular cross section. The touch sensor panel described. A touch sensor system having display means for displaying an image through the touch sensor panel according to claim 1,
The image is displayed in accordance with an input position where the indicator is brought into contact with or in proximity to the touch sensor surface, and the touch sensor surface has a plurality of horizontal lines, a plurality of vertical lines, and vertical and horizontal grids on the touch sensor surface. At least one of the lines is visible, and a viewer who confirms an image displayed through the touch sensor surface at a position farther from the touch sensor surface than the operator, the plurality of horizontal lines, a plurality of lines A touch sensor system configured such that at least one of vertical lines and vertical and horizontal lines is difficult to see.