TWM479457U - Induction electrode structure of wire resistance touch panel with visual effect homogenization - Google Patents

Description

Inductive electrode structure of line resistance touch panel with visual effect uniformity

The invention relates to a sensing electrode structure of a line resistance touch panel, in particular to a line resistance touch which can reduce the visual shadow when the line resistance sensing electrode is close to the light source, and can improve the visual effect when the user views the touch panel. The sensing electrode structure of the panel.

The existing line resistance touch panel is formed with a plurality of first sensing electrode strings and a plurality of second sensing electrode strings on a substrate, and an insulating layer is interposed between the first sensing electrode strings and the second sensing electrode strings to generate electricity. The first sensing electrode string and the second sensing electrode strings are disposed at right angles, and each of the first sensing electrode strings has a plurality of connected first sensing electrodes, and each of the second sensing electrode strings has a plurality of connected second sensing electrodes, wherein the first sensing electrodes and the second sensing electrodes are laid in a plurality of metal lines and are in the form of line resistance, and each of the sensing electrodes has a plurality of openings of the same size and is in the form of a mesh. Each of the mesh-shaped sensing electrodes is formed at a fixed aperture ratio.

Since the openings of the sensing electrodes of the existing line resistance touch panel are fixed in size, the first sensing near the light source (screen or LCM) The electrode shields the light emitted by the light source, so that the user can easily see the metal line of the first sensing electrode and generate visual residual images and black spots, and the second sensing electrode farther away from the light source is less likely to shield the light. The light emitted by the light source makes the user visually less likely to see the metal wire of the second sensing electrode. Therefore, the existing line resistance touch panel with the same aperture ratio causes the user to black when viewing the image of the touch panel. The problem of uneven visual effects between dots and visual shadows.

As described in the foregoing, when the existing touch panel is provided with a sensing electrode by a metal wire, the sensing electrode near the light source generates a visual black shadow and has a problem of uneven visual effect. Therefore, the main purpose of the present invention is to provide a visually uniform effect. The sensing electrode structure of the line resistance touch panel is formed by forming different aperture ratios of the two layers of sensing electrodes, forming a larger opening (the aperture ratio is small) near the sensing electrode of the light source, and forming a smaller sensing electrode away from the light source. The opening (the aperture ratio is large), and the opposite connecting lines between the two sensing electrodes form a non-axial intersection, thereby reducing the problem that the visual effect of the visual black near the sensing electrode of the light source is uneven.

The main technical means for achieving the above-mentioned purpose is that the sensing electrode structure of the linear resistance touch panel having the visual effect uniformity is formed by dividing a first sensing electrode group and a second sensing electrode on two sides of a substrate. a group; wherein the first sensing electrode group is adjacent to a light source, and the plurality of a first sensing electrode disposed parallel to the first axis, a plurality of first openings are formed on each of the first sensing electrodes, and two adjacent first sensing electrodes are connected by a first connecting portion; the second sensing electrode group The second sensing electrode is disposed in a direction parallel to the second axis, wherein the second axis direction intersects with the first axis direction, and each of the second sensing electrodes respectively forms a plurality of second openings, and each of the second openings is smaller than each The first opening, the two adjacent second sensing electrodes are connected by a second connecting portion, and each of the second connecting portions does not overlap with each of the first connecting portions.

The sensing electrode structure of the line resistance touch panel with visual effect uniformity formed by the foregoing components, when the first sensing electrode group is disposed on the bottom surface of the substrate and close to the light source (display), Each opening of the sensing electrode is larger than each opening of the second sensing electrode, and the larger opening means that less light is blocked by each of the first sensing electrodes, thereby reducing the visual shadow generated by the first sensing electrode, and utilizing the opening and closing of different size openings. The harmonizing light is uniform, and the first and second connecting lines between the first and second sensing electrodes form a non-axis intersection, which can reduce the blackness of the first sensing electrode close to the illuminating source and the axial overlap of the connecting line Point to solve the problem that the existing line resistance touch panel has black spots and uneven visual effects.

10‧‧‧Substrate

20‧‧‧First sensing electrode set

21‧‧‧First induction electrode string

210‧‧‧First induction electrode

211‧‧‧ first line

212‧‧‧Second line

213‧‧‧Network cable

214‧‧‧ interval line

215, 215A‧‧‧ connection line

216, 216A‧‧‧ connection line

30‧‧‧Second sensing electrode set

31‧‧‧Second sensor string

310‧‧‧Second sensing electrode

311‧‧‧Induction line

312‧‧‧Wire

313, 314‧‧‧ connecting lines

315‧‧‧ interval line

40‧‧‧Substrate

A‧‧‧ gap

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded view of a first preferred embodiment of the present invention.

Figure 2 is a perspective view of the first preferred embodiment of the present invention.

Figure 3 is a plan view of a first preferred embodiment of the present invention.

Figure 4 is a perspective view of a second preferred embodiment of the present invention.

Figure 5 is a plan view of a second preferred embodiment of the present invention.

Figure 6 is a perspective view of a third preferred embodiment of the present invention.

Figure 7 is a plan view of a third preferred embodiment of the present invention

Referring to FIG. 1 and FIG. 2, a first sensing electrode group 20 and a second sensing electrode group 30 are formed on a bottom surface and a surface of a substrate 10, respectively. The material 10 may be an insulating layer or an insulating substrate. In the preferred embodiment, the substrate 10 is an insulating layer and is disposed on the other side of the first sensing electrode group 20 relative to the substrate 10 (insulating layer). There is a substrate 40 (which may be another insulating layer) that is connected to a source of illumination such as a screen, display, LCD or LCM. The first sensing electrode group 20 includes a plurality of first sensing electrode strings 21, and the second sensing electrode group 30 includes a plurality of second sensing electrode strings 31, and the first sensing electrode strings 21 are disposed in parallel with the first axis direction. The second sensing electrode strings 31 are disposed in parallel with the second axis direction, and the first axis direction intersects the second axis direction at an angle (the angle is a right angle as shown).

Each of the first sensing electrode strings 21 has a plurality of first sensing electrodes 210 connected in a first axial direction. Each of the first sensing electrodes 210 is laid by a plurality of metal sensing wires to form a mesh shape and has a diamond shape. The first sensing electrode 210 is mainly composed of two sets of parallel opposite first edges 211. And the second side line 212 is formed with a diamond-shaped frame, and more than one network line 213 is disposed between the two opposite first side lines 211 and the second side line 212. In this embodiment, a network line is connected between the two first side lines 211. 213, another network line 213 is connected between the two second edge lines 212, and the two network lines 213 are crossed, that is, the first sensing electrode 211 is composed of two first edge lines 211 and two second edge lines 212 and The two wire lines 213 constitute a 2 x 2 opening. Further, the first edge 211 and the second edge 212 of each of the first sensing electrodes 210 are respectively formed with a plurality of spacer lines 214 extending toward the opposite outer sides of the first sensing electrodes 210 and not intersecting each other.

The first sensing electrodes 210 on the same first sensing electrode string 21 are connected by a first connecting portion. As shown, each first connecting portion is composed of four connecting lines 215, 215A, 216 and 216A, two of which are The connecting lines 215, 215A are parallel to the second side line 212, the other two connecting lines 216, 216A are parallel to the first side line 211, and the connecting lines 215, 215A, 216 and 216A are not in the first axis direction. , but at an angle to the direction of the first axis. As shown in the figure, the two connecting lines 215, 216A are a pair, and one end is connected to each other at one end, and the other end of the connecting line 215 is connected to the first side line 211, and the other end of the connecting line 216A is The two side lines 212 are connected; the other two connecting lines 215A, 216 are a pair, and one end is connected to each other by one end, and the other end of the connecting line 215A is connected with the first side line 211, and the other end of the connecting line 216 is the same The two side lines 212 are connected. The adjacent first sensing electrodes 210 are connected to each other through the connecting lines 215, 215A, 216 and 216A, and the two connected The strip connecting lines 215 and 216A and the other two connecting lines 216 and 215A will respectively constitute opposite V-shapes. Since the connecting lines 215, 215A, 216 and 216A are not in the first axial direction, the first connecting portion formed is also not in the first axial direction.

Each of the second sensing electrode strings 31 has a plurality of second sensing electrodes 310 connected in a second axis direction, and each of the second sensing electrodes 310 is formed by a plurality of metal sensing wires 311 to form a mesh pattern and has a plurality of openings, and The outline is also in the shape of a diamond. As shown in the figure, the second sensing electrode 310 is provided with a plurality of wires 312 which are meshed with each other in the surrounding sensing line 311. The sensing line 311 and the wires 312 constitute 6 The opening of the second sensing electrode 310 is greater than the number of openings of the first sensing electrode 210, and the opening of the second sensing electrode 310 is smaller than the opening of the first sensing electrode 210, and the opening is small. Represents a large aperture ratio. The second sensing electrodes 310 adjacent to each other on the same second sensing electrode string 31 are connected by a second connecting portion. As shown, each second connecting portion is composed of two connecting lines 313 and 314, and two connecting lines 313, The 314 points are V-shaped and are combined in a manner of opening in a rhombic shape. The second connecting portion having a diamond shape is connected to the sensing line 311 around each of the second sensing electrodes 310 with its opposite ends. Further, the sensing lines 311 at the periphery of each of the second sensing electrodes 310 are respectively formed with a plurality of spacing lines 315 extending from the opposite outer sides of the second sensing electrodes 310 and spaced apart from the adjacent second sensing electrodes 310. Lines 315 do not intersect.

Please refer to FIG. 3, as can be seen from the top view, when the first sense When the electrode group 20 and the second sensing electrode group 30 are superposed on both sides of the substrate 10, the first connecting portion (the connecting lines 215, 215A, 216, and 216A) is formed to have a larger range than the second connecting portion ( The connecting lines 313, 314), that is, the first connecting portions are located outside the second connecting portion and do not overlap each other, and the second sensing electrodes 310 are connected to the connecting lines 215, 215A, 216 of the first connecting portion No wires 312 are provided above the 216A. The problem that the existing axially intersecting bridges are prone to black spots due to the overlapping of the connecting wires is reduced by the first connecting portion and the second connecting portion not overlapping.

As can be seen from the above, since the first sensing electrodes 210 and the second sensing electrodes 310 on both sides of the substrate 10 have different openings and aperture ratios, the opening of the first sensing electrode 210 of the bottom surface of the substrate 10 near the light source is larger. (The aperture ratio is small), the opening of the second sensing electrode 310 on the surface of the substrate 10 is small (the aperture ratio is large), and the first sensing electrode 210 close to the light source can be reduced to produce a visual black shadow, and the opening and closing of the opening is utilized. The light is uniform, and the first connecting portion and the second connecting portion form a non-axis to reduce the black point, thereby solving the problem that the existing line resistance touch panel has black spots and uneven visual effects.

When the foregoing components are used for OGS (monolithic glass touch panel), since the substrate 40 is facing the user instead of the light source, the second sensing electrode group 30 is close to the light source, so the first sensing electrode group The opening size and the aperture ratio of the second and second sensing electrode groups 30 should be interchanged so that the sensing electrodes near the light source form a large opening.

Regarding the second preferred embodiment of the present invention, please refer to FIG. 4 5 is substantially the same as the first preferred embodiment, except that the first edge 211 and the second edge 212 around the first sensing electrode 210 are respectively connected with two network lines 213, and the network lines 213 are connected. The opening is formed in a mesh shape to form a 3×3 opening, and the metal wire 311 around the second sensing electrode 310 has five wires 312 arranged in parallel in two sections, and is formed into a mesh by crossing. A 6×6 opening is formed, and a first gap 211 and a second edge 212 of each of the first sensing electrodes 210 are respectively formed with a notch A in the first axial direction, that is, around the first sensing electrode 210. The first side line 211 and the second side line 212 are disconnected in the first axis direction. When the second connecting portion (the connecting line 313, 314) of the second sensing electrode 310 is overlapped with the first of the first sensing electrodes 210 Black spots and parasitic capacitance can be reduced when the connection is over.

Referring to FIGS. 6 and 7 , the first preferred embodiment is substantially the same as the first preferred embodiment, except that each of the first sensing electrodes 210 forms a 4×4 opening, and each second The sensing electrode 310 is formed as a 4×5 opening, but the wires 312 of the second sensing portion 310 adjacent to the second connecting portion are notched to avoid overlapping with the connecting lines 215, 216A and 215A, 216 of the first connecting portion; One end of each of the first connecting portions 215, 216A and 215A, 216 is not connected. As shown, one end of the two connecting lines 215, 215A is connected to the first side line 211, and two connecting lines The other ends of 215, 215A are free ends, and the connection positions of the two connecting lines 216, 216A and the corresponding connecting lines 215A, 215 are one-fifth of the free ends of the connecting lines 215A, 215, so that the first connecting line portion Connection line 216, The 215A and the connecting lines 215, 216A are in a herringbone shape instead of the V shape of the first preferred embodiment.

10‧‧‧Substrate

20‧‧‧First sensing electrode set

21‧‧‧First induction electrode string

210‧‧‧First induction electrode

211‧‧‧ first line

212‧‧‧Second line

213‧‧‧Network cable

214‧‧‧ interval line

215, 215A‧‧‧ connection line

216, 216A‧‧‧ connection line

30‧‧‧Second sensing electrode set

31‧‧‧Second sensor string

310‧‧‧Second sensing electrode

311‧‧‧Induction line

312‧‧‧Wire

313, 314‧‧‧ connecting lines

315‧‧‧ interval line

40‧‧‧Substrate

Claims (10)

The sensing electrode structure of the linear resistance touch panel with visual effect uniformity is characterized in that a first sensing electrode group and a second sensing electrode group are disposed on two sides of a substrate; wherein the first sensing electrode group is adjacent to one a light source, comprising a plurality of first sensing electrodes disposed in a direction parallel to the first axis, each of the first sensing electrodes respectively forming a plurality of first openings, and the adjacent two first sensing electrodes are a first connecting portion The second sensing electrode group includes a plurality of second sensing electrodes disposed in a direction parallel to the second axis. The second axis direction intersects with the first axis direction, and each of the second sensing electrodes respectively forms a plurality of second openings Each of the second openings is smaller than each of the first openings, and the adjacent two second sensing electrodes are connected by a second connecting portion, and each of the second connecting portions does not overlap with each of the first connecting portions. The sensing electrode structure of the line resistance touch panel with visual effect uniformity as claimed in claim 1, wherein the first sensing electrode is formed by two sets of parallel first and second side lines, and the two opposite sides are opposite to each other. There are more than one mesh line between the first side line and the two opposite second side lines and have a plurality of openings. The sensing electrode structure of the line resistance touch panel with the visual effect uniformization described in claim 2, each of the first connecting portions is composed of four connecting lines, wherein the two connecting lines are parallel to the second side line, and the other two The connecting line is parallel to the first side line, and the connecting lines are not in the first axis direction but at an angle to the first axis direction. The sensing electrode structure of the line resistance touch panel with visual effect uniformity as claimed in claim 3, one of the first connecting portions and the second side The parallel line connecting the line and the connecting line parallel to the first side line are respectively V-shaped with one end connected thereto, and the other ends of the two connecting lines are respectively connected to the first side line of the adjacent first sensing electrode And a second edge line; the other connecting line parallel to the second side line and the other connecting line parallel to the first side line are respectively V-shaped with one end connected thereto, and the other ends of the two connecting lines are respectively adjacent to each other The other first edge of the first sensing electrode and the other second edge. The first electrode and the second edge of the first sensing electrode are respectively formed with a notch in the direction of the first axis, the sensing electrode structure of the line resistance touch panel having the visual effect uniformity as described in claim 4 The connecting lines of a connecting portion are connected to the first edge and the second side line at the near gap of the first sensing electrode. The sensing electrode structure of the linear resistance touch panel with visual effect uniformization according to any one of claims 3 to 5, wherein each of the second sensing electrodes is formed by a plurality of sensing lines to form a mesh pattern and has a plurality of openings. The second sensing electrode is provided with two or more intersecting wires in the surrounding sensing line, and the number of openings of the second sensing electrode is more than the number of openings of the first sensing electrode. The sensing electrode structure of the line resistance touch panel having the visual effect uniformity as described in claim 6, wherein the second sensing electrodes are not provided with the wires at the overlapping positions of the connecting lines of the first connecting portion. The sensing electrode structure of the line resistance touch panel having the visual effect uniformity described in claim 7, wherein the first sensing electrode and the second sensing electrode respectively form a plurality of spacing lines, wherein the spacing lines are respectively directed to the first sensing The opposite ends of the electrode and the second sensing electrode extend, and the spaced lines do not phase with each other cross. The sensing electrode structure of the line resistance touch panel with the visual effect uniformity described in claim 6, wherein one end of one of the connecting lines of each of the first connecting portions is connected to the first side line and the other end is a free end, and the other end is a free end. A connecting line is connected to the second side line, and the two connecting lines are in a herringbone shape. The sensing electrode structure of the line resistance touch panel having the visual effect uniformity as claimed in claim 6, wherein the substrate is an insulating layer or an insulating substrate.