TW201621576A - Touch panel - Google Patents

Abstract

A touch panel includes plural first electrode series, plural second electrode series, and plural isolation blocks. The first electrode series extends along a first direction. The second electrodes series extends along a second direction. The isolation blocks are disposed at plural intersections of the first electrode series and the second electrodes series respectively. Each of the isolation blocks is disposed between one of the first electrode series and one of the second electrodes series for spacing the one of the first electrode series and the one of the second electrodes series apart. The isolation blocks has a long axis respectively, and the long axes of at least two of the isolation blocks are different.

Description

Touch panel

The present invention relates to a touch panel.

With the development of smart products such as smart phones, monitors with touch panels have gradually become mainstream. In order to enable users to simultaneously view information and touch sensing on smart products, today's touch panels require high transmittance in addition to their own touch sensing capabilities.

In the design of the touch panel, a regular electrode pattern is often provided to sense the touch position of the human body. These electrode patterns tend to match the aligned insulating blocks, such as insulating blocks arranged in an array, to achieve insulation. However, since the arrangement of the insulating block increases the plurality of interfaces, the light is easily interfered, and the light intensity is inconsistent at various viewing angles, and the human eye has a strong visual response to the array arrangement, and therefore, in a general touch panel. It is easy for the human eye to easily observe the insulating block due to the interference problem, thereby disturbing the user to observe the information.

The invention provides a touch panel which overcomes the problem that the insulating block interferes with the user's observation information by setting the long axis directions of the insulating blocks to be inconsistent.

One aspect of the present invention provides a touch panel including a plurality of first electrode strings, a plurality of second electrode strings, and a plurality of insulating blocks. The first electrode string extends in the first direction. The second electrode string extends in the second direction. The insulating blocks are respectively disposed at a plurality of intersections of the first electrode string and the second electrode string, and each insulating block is disposed between one of the first electrode strings and one of the second electrode strings for using the first electrode string One of them is isolated from one of the second electrode strings, wherein each of the insulating blocks has a long axis direction, and at least two of the insulating blocks have different major axis directions.

In one or more embodiments of the invention, the first direction is perpendicular to the second direction.

In one or more embodiments of the present invention, the angle between the major axis direction and the second direction is no more than 60 degrees.

In one or more embodiments of the present invention, the second electrode string includes a plurality of sensing electrodes and a plurality of connecting lines, each connecting line spanning each of the insulating blocks to be connected to the sensing electrodes adjacent in the second direction, Each of the connecting lines is arranged along the long axis direction of each of the insulating blocks.

In one or more embodiments of the present invention, the second electrode string includes a plurality of sensing electrodes and a plurality of connecting lines, each connecting line spanning each of the insulating blocks to be connected to the sensing electrodes adjacent in the second direction, The connecting lines are arranged in the second direction.

In one or more embodiments of the present invention, the first electrode string includes a plurality of sensing electrodes and a plurality of connecting lines, each connecting line being connected to the first direction Adjacent sensing electrodes, the insulating block is located between the connecting line of the first electrode string and the connecting line of the second electrode string.

In one or more embodiments of the present invention, the longitudinal direction of the adjacent insulating blocks has a plurality of angles with the second direction, and the included angles have an equal or equal relationship.

In one or more embodiments of the present invention, the insulating block is arranged in an array in a first direction and a second direction, the long axis direction of the insulating block in the second direction is the same, and at least two in the first direction. The long axis direction of the insulating block is different.

In one or more embodiments of the present invention, the insulating block is arranged in an array in a first direction and a second direction, and the long axis directions of the at least two insulating blocks in the first direction are different, and in the second direction At least two insulating blocks have different longitudinal directions.

In one or more embodiments of the present invention, the insulating block is arranged in an array in the first direction and the second direction, and the long axis direction of the insulating block distributed along the first direction has a plurality of angles with the second direction, and the included angles are equal. Poor or equivalence relationship.

In one or more embodiments of the present invention, the insulating block is arranged in an array in the first direction and the second direction, and the long axis direction of the insulating block distributed along the second direction has a plurality of angles with the second direction, and the included angles are equal. Poor or equivalence relationship.

In one or more embodiments of the present invention, at least two of the insulating blocks have different lengths, and the insulating blocks have the same projected length in the second direction.

In one or more embodiments of the present invention, each of the insulating blocks is different in direction from the major axis of the adjacent insulating block.

In one or more embodiments of the present invention, the material of the sensing electrodes of the first electrode string and the second electrode string is a transparent conductive material.

100‧‧‧ touch panel

110‧‧‧First electrode string

112‧‧‧Induction electrodes

114‧‧‧Connecting line

120‧‧‧Second electrode string

122‧‧‧Induction electrode

124‧‧‧Connecting line

130‧‧‧Insulation block

130a, 130b, 130c‧‧ ‧ insulating block

LD‧‧‧ long axis direction

LDa~LDi‧‧‧Long-axis direction

A‧‧‧ angle

Aa~Ai‧‧‧ angle

D1‧‧‧ first direction

D2‧‧‧ second direction

1 is a schematic view of a touch panel according to an embodiment of the present invention.

2 is a schematic view of a touch panel according to another embodiment of the present invention.

FIG. 3 is a schematic diagram of a touch panel according to still another embodiment of the present invention.

4 is a schematic view of a touch panel according to still another embodiment of the present invention.

FIG. 5 is a schematic diagram of a touch panel according to still another embodiment of the present invention.

FIG. 6 is a schematic diagram of a touch panel according to still another embodiment of the present invention.

The various embodiments of the present invention are disclosed in the drawings, and in the claims However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified manner.

Referring to FIG. 1, FIG. 1 is a schematic diagram of a touch panel 100 according to an embodiment of the present invention. The touch panel 100 includes a plurality of first electrode strings 110 , a plurality of second electrode strings 120 , and a plurality of insulating blocks 130 . The first electrode string 110 extends in the first direction D1. The second electrode string 120 extends in the second direction D2. The insulating blocks 130 are respectively disposed at a plurality of intersections of the first electrode string 110 and the second electrode string 120, and each insulating block 130 is disposed between one of the first electrode strings 110 and one of the second electrode strings 120. One of the first electrode string 110 and the second electrode One of the strings 120 is isolated, wherein the insulating blocks 130 respectively have a long axis direction LD, and at least two insulating blocks 130 have different major axis directions LD.

In one or more embodiments of the present invention, the long axis directions LD of the at least two insulating blocks 130 in the first direction D1 are different, and the long axis directions of the at least two insulating blocks 130 in the second direction D2 are different. LD is different.

For example, the insulating block 130a, the insulating block 130b, and the insulating block 130c have a long axis direction LDa, a long axis direction LDb, and a long axis direction LDc, respectively, wherein the long axis direction LDa and the long axis direction LDb are not parallel to each other, and the long axis The direction LDa and the long axis direction LDc are not parallel to each other.

The plurality of first electrode strings 110 extend along the first direction D1 and are spaced apart from each other in the second direction D2. Each of the first electrode strings 110 includes a plurality of sensing electrodes 112 and a plurality of connecting lines 114, and each connecting line 114 is connected. The adjacent sensing electrodes 112 in the first direction D1. The plurality of second electrode strings 120 extend along the second direction D2 and are spaced apart from each other in the first direction D1. Each of the second electrode strings 120 includes a plurality of sensing electrodes 122 and a plurality of connecting lines 124, and each connecting line 124 spans Each of the insulating blocks 130 passes through the adjacent sensing electrodes 122 in the second direction D2. In the present embodiment, the connecting line 114 and the connecting line 124 are not affected by the long-axis direction LD of the insulating block 130. The connecting line 114 of each first electrode string 110 extends and is arranged along the first direction D1, adjacent to the first electrode. The connecting lines 114 of the string 110 are arranged at intervals along the second direction D2; the connecting lines 124 of each of the second electrode strings 120 are extended and arranged along the second direction D2, and the connecting lines 124 of the adjacent second electrode strings 120 are along the first direction. D1 is arranged at intervals.

As seen in the figure, the width of the insulating block 130 can be designed to be larger than the width of the connecting line 114 and the connecting line 124, but this is not intended to limit the present invention. range. In some embodiments, the width of the insulating block 130 can be designed to be equal to or less than the width of the connecting line 114.

Herein, in the arrangement of the insulating block 130, a preferred arrangement method is to enable the insulating block 130 to cover the intersection of the first electrode string 110 and the second electrode string 120. In the present embodiment, the insulating block 130 is located between the connecting line 114 of the first electrode string 110 and the connecting line 124 of the second electrode string 120. The longitudinal direction LD of the insulating block 130 has an angle A with the second direction D2.

In some embodiments, for example, when the square of the width of the insulating block 130 is smaller than the sum of the squares of the widths of the connecting lines 114 and the connecting lines 124, the insulating block 130 is affected by the angle A to affect the coverage of the intersection. ability. In detail, the larger the angle A is, the shorter the projection of the insulating block 130 in the second direction D2 is, so that the connection line 114 of the first electrode string 110 is less likely to be shielded by the insulating block 130, or the easier it is to separate. The connection line 114 and the connection line 124 are opened. Various methods are provided below to solve this problem that is not easily obscured.

First, the length of the insulating block 130 may be configured to vary with the angle A of the insulating block 130 and the second direction D2. Although the length of the insulating block 130 is not explicitly shown, it is to be understood that in one or more embodiments of the present invention, the projected length of the insulating block 130 in the second direction D2 may be configured to be larger than the first electrode string 110. The width of the connecting line 114 allows the insulating block 130 to cover at least part of the connecting line 114 for the purpose of isolating the first electrode string 110 from the second electrode string 120. Furthermore, the lengths of the insulating blocks 130 may be different, but the projection lengths in the second direction D2 are the same.

Secondly, the width of the insulating block 130 may also be configured to vary with the angle A between the insulating block 130 and the second direction D2. Although the length of the insulating block 130 is not It is to be noted that the projection length of the insulating block 130 in the first direction D1 can be greater than the width of the connecting line 124 of the second electrode string 120. Thus, the connecting line 114 and the connecting line 124 can be Separated to achieve the purpose of isolation.

Further, the angle A between the long-axis direction LD of the insulating block 130 and the second direction D2 may be configured to be no more than a certain angle, for example, 60 degrees, in other words, an angle between the long-axis direction LD and the extending direction of the connecting line 124. A is not more than 60 degrees. In this way, it can be ensured that the projection length of the insulating block 130 in the second direction D2 is sufficient for the connecting line 124 to straddle the connecting line 114 of the first electrode string 110 by the insulating block 130, and the connecting line 114 and the connecting line are ensured. 124 is electrically insulated from each other. It should be noted that the 60 degrees is only an estimated value. In practice, as the length and width of the insulating block 130 are different, and the width of the connecting line 114 and the connecting line 124 are different, the angle can be adjusted to 50 degrees to 70 degrees.

As a result, by the above-described manner, it is possible to overcome the problem that the connection line 114 and the connection line 124 are not easily isolated when the angle A of the insulating block 130 is large.

In one or more embodiments of the present invention, in the configuration of the insulating block 130, the first direction D1 may be disposed perpendicular to the second direction D2, and the first direction D1 is a row, and the second direction D2 is a column. The insulating block 130 is arranged. In other words, the insulating block 130 may be arranged in an array in the first direction D1 and the second direction D2. In this way, the insulating block 130 has a certain interval in the first direction D1 for arranging the sensing electrodes 112, and the insulating block 130 has another spacing in the second direction D2 for arranging the sensing electrodes 122. However, in other embodiments, the first direction D1 may be at an angle to the second direction D2 without being perpendicular to each other.

In one or more embodiments of the present invention, the material of the first electrode string 110 and the sensing electrode 122 of the second electrode string 120 is a transparent conductive material. The material of the connection line 114 of the first electrode string 110 and the material of the connection line 124 of the second electrode string 120 may be the same transparent conductive material as the sensing electrode 122, or may be an opaque conductive material such as metal. The material of the insulating block 130 may be yttrium oxide, tantalum nitride or a high molecular polymer or the like, and has a thickness of about 0.1 μm to about 5 μm.

Since the light passing through the intersection of the first electrode string 110 and the second electrode string 120 is affected by the insulating block 130, interference due to interface reflection is easily caused, and there is a problem that the light intensity changes with the viewing angle, and the human eye arranges the array. The visual response is strong, so when the insulating blocks 130 are aligned, they are easily observed by the human eye. In the present embodiment, by designing the insulating block 130 to have different longitudinal directions LD, the amount and intensity of reflected light of the insulating block 130 in the same direction are dispersed, and the problem that the insulating block 130 is easily observed by the human eye due to the uniform arrangement is reduced. Improve the quality of users' viewing information.

Referring to FIG. 2, FIG. 2 is a schematic diagram of a touch panel 100 according to another embodiment of the present invention. This embodiment is substantially the same as the embodiment of Fig. 1, except that in the present embodiment, each of the insulating blocks 130 is different from the longitudinal direction LD of the adjacent insulating block 130.

For example, the insulating blocks 130b-130i surround the insulating block 130a, and each of the insulating blocks 130a-130i has a long-axis direction LD, wherein the long-axis directions LD of the insulating blocks 130a-130i are not parallel to each other, and thus the directions are different.

Here, the long axis direction LD and the second direction D2 may have an included angle A, and the included angles Aa to Ai may have an equal difference or an equal relationship. For example, insulating block 130a The angle A of ~130i may be 0 degrees, 7.5 degrees, 15 degrees, 22.5 degrees, 30 degrees, -7.5 degrees, -15 degrees, -22.5 degrees, -30 degrees. Here, as the angle A is set to be different on the upper and lower sides of the second direction D2, the angle A can be represented by a plus or minus sign. For example, the angle A between one side of the second direction D2 is represented by a positive value, and the angle A of the other side of the second direction D2 is represented by a negative value. In the above angles, the negative value is only used to indicate the relative relationship between the long-axis direction LD and the second direction D2, and the actual value of the included angle A should not be limited.

Referring to FIG. 3, FIG. 3 is a schematic diagram of a touch panel 100 according to still another embodiment of the present invention. This embodiment is substantially the same as the embodiment of FIG. 1 except that in the present embodiment, the plurality of insulating blocks 130 in the second direction D2 have the same long-axis direction LD and are in the first direction D1. The at least two insulating blocks 130 have different longitudinal directions LD. In other words, the long-axis direction LD of the insulating block 130 changes only in the first direction D1.

Other relevant details are substantially the same as those of the embodiment of FIG. 1 and will not be described herein.

Of course, in other embodiments, the long axis direction LD of the insulating block 130 may be configured to vary only in the second direction D2.

Referring to FIG. 4, FIG. 4 is a schematic diagram of a touch panel 100 according to still another embodiment of the present invention. This embodiment is substantially the same as the embodiment of FIG. 1 except that in the present embodiment, each of the connection wires 124 extends in the longitudinal direction LD of each of the insulating blocks 130.

In the present embodiment, the connection lines 124 are disposed at the center of the insulating block 130, and each of the connection lines 124 straddles each of the insulating blocks 130 along the long-axis direction LD of the insulating block 130 to connect the adjacent sensing electrodes 122. Here, in order to connect The adjacent sensing electrodes 122 have different lengths of the connecting wires 124 as the angle A between the major axis direction LD of the insulating block 130 and the second direction D2 is different.

In the present embodiment, the connecting wire 124 spans the insulating block 130 in a long path. Since the connecting wire 124 is disposed at the central axis position of the long-axis direction LD of the insulating block 130, the insulating block 130 can preferably be insulated. The purpose of an electrode string 110 and a second electrode string 120.

Referring to FIG. 5, FIG. 5 is a schematic diagram of a touch panel 100 according to still another embodiment of the present invention. For convenience of explanation, the first electrode string 110 and the plurality of second electrode strings 120 are omitted herein. This embodiment is similar to the embodiment of FIG. 1 except that in the present embodiment, the longitudinal direction LD of the insulating block 130 distributed along the first direction D1 and the second direction D2 have a plurality of angles A, and these angles A Have an equivalence or equivalence relationship.

For example, as shown, the insulating blocks 130 distributed along the first direction D1 have long-axis directions LDa to LDi, respectively. The long axis directions LDa to LDi and the second direction D2 may have a plurality of included angles Aa to Ai, and the included angles Aa to Ai may have an equal difference or an equal relationship. For example, the angles Aa~Ai may be 30 degrees, 22.5 degrees, 15 degrees, 7.5 degrees, 0 degrees, -7.5 degrees, -15 degrees, -22.5 degrees, -30 degrees. Here, as the angle A is set to be different on the upper and lower sides of the second direction D2, the angle A can be represented by a plus or minus sign. For example, the angles Aa to Ad of one side in the second direction D2 are represented by positive values, and the angles Af to Ai of the other side of the second direction D2 are represented by negative values. In the above angles, the negative value is only used to indicate the relative relationship between the long-axis directions LDa to LDi and the second direction D2, and the actual values of the included angles Aa to Ai should not be limited.

Referring to FIG. 6, FIG. 6 is a schematic diagram of a touch panel 100 according to still another embodiment of the present invention. This embodiment is in contrast to the embodiment of FIG. The difference is that in the present embodiment, the major axis direction LD and the second direction D2 of the insulating block 130 distributed along the second direction D2 also have a plurality of included angles A, and the included angle A has an equal or equal relationship.

For example, as shown, the insulating blocks 130 distributed along the second direction D2 have long axis directions LDa to LDi, respectively. The long axis directions LDa to LDi and the second direction D2 may have a plurality of included angles Aa to Ai, and the included angles Aa to Ai may have an equal difference or an equal relationship. For example, the angles Aa~Ai may be 30 degrees, 22.5 degrees, 15 degrees, 7.5 degrees, 0 degrees, -7.5 degrees, -15 degrees, -22.5 degrees, -30 degrees. Here, as the angle A is set to be different on the upper and lower sides of the second direction D2, the angle A can be represented by a plus or minus sign. For example, the angles Aa to Ad of one side in the second direction D2 are represented by positive values, and the angles Af to Ai of the other side of the second direction D2 are represented by negative values. In the above angles, the negative value is only used to indicate the relative relationship between the long-axis directions LDa to LDi and the second direction D2, and the actual values of the included angles Aa to Ai should not be limited.

In other embodiments, the arrangement of the fifth and sixth figures may be combined, that is, the longitudinal direction LD of the insulating block 130 distributed along the first direction D1 and the second direction D2 have a plurality of angles A, and these angles are included. A has an equivalence or equivalence relationship. The long axis direction LD and the second direction D2 of the insulating block 130 distributed along the second direction D2 also have a plurality of angles A, and the angle A has an equal or equal relationship. The gradation relationship of the angle A in the first direction D1 may be the same as or different from the gradation relationship in the second direction D2.

As described above, since the long-axis directions LDa to LDi are not the same, it is possible to avoid the problem that the insulating block 130 is easily observed by the human eye due to the alignment, thereby improving the quality of the user's viewing information.

The invention provides a touch panel which disperses the direction and intensity of reflected light of the insulating block in the same direction by disposing the longitudinal direction of the insulating block, and reduces the insulation block to be easily observed by the human eye due to the alignment. Problems, and thus improve the quality of the user's viewing information.

While the invention has been described above in terms of various embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application attached.

100‧‧‧ touch panel

110‧‧‧First electrode string

112‧‧‧Induction electrode

114‧‧‧Connecting line

120‧‧‧Second electrode string

122‧‧‧Induction electrode

124‧‧‧Connecting line

130‧‧‧Insulation block

130a, 130b, 130c‧‧ ‧ insulating block

LD‧‧‧ long axis direction

LDa~LDc‧‧‧ long axis direction

A‧‧‧ angle

D1‧‧‧ first direction

D2‧‧‧ second direction

Claims (14)

A touch panel includes: a plurality of first electrode strings extending along a first direction; a plurality of second electrode strings extending along a second direction; and a plurality of insulating blocks respectively disposed on the first electrode strings and a plurality of intersections of the second electrode strings, and each of the insulating blocks is disposed between one of the first electrode strings and one of the second electrode strings for using the first electrode strings One of the second electrode strings is isolated from each of the second electrode strings, wherein each of the insulating blocks has a long axis direction, and at least two of the insulating blocks have different major axis directions. The touch panel of claim 1, wherein the first direction is perpendicular to the second direction. The touch panel of claim 1, wherein the long axis direction and the second direction are not more than 60 degrees. The touch panel of claim 1, wherein the second electrode strings comprise a plurality of sensing electrodes and a plurality of connecting lines, each of the connecting lines spanning each of the insulating blocks to be connected to the second direction The adjacent sensing electrodes are arranged, and each of the connecting lines is arranged along a long axis direction of each of the insulating blocks. The touch panel of claim 1, wherein the second electrode strings comprise a plurality of sensing electrodes and a plurality of connecting lines, each of the connecting lines spanning each of the insulating blocks to be connected to the second direction The adjacent sensing electrodes are arranged, and the connecting lines are arranged along the second direction. The touch panel of claim 4 or 5, wherein the first electrode strings comprise a plurality of sensing electrodes and a plurality of connecting lines, each of the connecting lines being connected to the sensing electrodes adjacent to the first direction And the insulating blocks are respectively located between the connecting lines of the first electrode strings and the connecting lines of the second electrode strings. The touch panel of claim 6, wherein the materials of the first electrode string and the sensing electrodes of the second electrode strings are transparent conductive materials. The touch panel of claim 1, wherein a lengthwise direction of the adjacent ones of the insulating blocks has a plurality of angles with the second direction, and the angles have an equal or equal relationship. The touch panel of claim 1, wherein the insulating blocks are arranged in an array in the first direction and the second direction, and the longitudinal directions of the insulating blocks in the second direction are the same, and At least two of the insulating blocks in the first direction have different major axis directions. The touch panel of claim 1, wherein the insulating blocks are arranged in an array in the first direction and the second direction, and the long axis directions of the at least two insulating blocks in the first direction are different. And at least two of the insulating blocks in the second direction have different major axis directions. The touch panel of claim 1, wherein the insulating blocks are arranged in an array in the first direction and the second direction, and the long axis direction and the second direction of the insulating blocks distributed along the first direction There are a plurality of included angles, and the angles have an equal or equal relationship. The touch panel of claim 1, wherein the insulating blocks are arranged in an array in the first direction and the second direction, and the long axis direction and the second direction of the insulating blocks distributed along the second direction There are a plurality of included angles, and the angles have an equal or equal relationship. The touch panel of claim 1, wherein at least two of the insulating blocks have different lengths, and the insulating blocks have the same projection length in the second direction. The touch panel of claim 1, wherein each of the insulating blocks has a different longitudinal direction from the adjacent ones of the insulating blocks.