WO2022095607A1

WO2022095607A1 - Touch device

Info

Publication number: WO2022095607A1
Application number: PCT/CN2021/118600
Authority: WO
Inventors: 陈玠鸣; 简伯儒
Original assignee: 友达光电股份有限公司
Priority date: 2020-11-06
Filing date: 2021-09-15
Publication date: 2022-05-12
Also published as: TW202219918A; TW202219715A; TWI791219B; TWI761174B; TW202219717A; TWI773207B; TWI763430B; DE112021005821T5; CN113778268A; TW202219718A; CN113778268B; TW202219716A; TWI770946B

Abstract

Provided is a touch device (10). The touch device (10) comprises a plurality of first touch electrodes (112) and a plurality of second touch electrodes (132). The plurality of first touch electrodes (112) and the plurality of second touch electrodes (132) are interleaved to define a plurality of first interleaved regions (R1). Each of the first touch electrodes (112) comprises a plurality of first trunks (112a) extending in a first direction (d1) and a plurality of second trunks (112b) extending in a second direction (d2). The plurality of first trunks (112a) and the plurality of second trunks (112b) are crossed to form a plurality of first grids (112h). Each of the first touch electrodes (112) further comprises a plurality of first branches (112c). The first branches (112c) are crossed at two segments (112as, 112bs) of two adjacent first trunks (112a) of at least one first grid (112h).

Description

touch device

technical field

The present invention relates to an electronic device, in particular to a touch control device.

Background technique

Touch devices (eg, touch panels) have the advantage of being easy to operate, so they are widely installed in electronic products (eg, mobile phones, tablet computers, electronic blackboards, etc.). The touch device includes a plurality of first touch electrodes and a plurality of second touch electrodes which are staggered. In consideration of visual effects, generally speaking, the first touch electrodes and the second touch electrodes are mostly designed as transparent sensing patterns. The resistance of the transparent sensing pattern is high, which is not conducive to the electrical properties of the touch device. Therefore, mesh-shaped first touch electrodes and second touch electrodes made of low-resistance materials (eg, metals) are developed.

Compared with the transparent sensing pattern, the mesh-shaped first touch electrodes and the second touch electrodes are more suitable for being applied to large-sized touch devices (eg, electronic blackboards, etc.). An edge-induced electric field can be formed between the first touch electrode and the second touch electrode to detect whether a conductive object (eg, but not limited to, a finger, a stylus, etc.) contacts or approaches the touch surface. Generally speaking, in a large-sized touch device, the distance between the touch surface and the first touch electrode and the second touch electrode is relatively long, so that the distribution density of the force lines of the edge-induced electric field on the touch surface is insufficient, which affects the Touch device performance.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a touch device with good performance.

A touch device according to an embodiment of the present invention includes a plurality of first touch electrodes and a plurality of second touch electrodes. Each of the first touch electrodes includes a plurality of first stems, a plurality of second stems, a plurality of first branches and a plurality of second branches. The plurality of first backbones extend substantially in the first direction. The plurality of second backbones extend substantially in the second direction, wherein the first direction and the second direction are staggered, the plurality of first backbones intersect the plurality of second backbones to form a plurality of first grids, and each A grid is defined by two adjacent segments of two first trunks and two adjacent segments of two second trunks. The plurality of first branches are structurally separated from each other, wherein the plurality of first branches intersect two sections of two adjacent first trunks of at least one first grid of the plurality of first grids. The plurality of second branches are structurally separated from each other, wherein the plurality of second branches intersect two sections of two adjacent second trunks of at least one first grid of the plurality of first grids. The plurality of second touch electrodes are interlaced with the plurality of first touch electrodes to define a plurality of first interlaced regions. The plurality of first branches and the plurality of second branches of the plurality of first touch electrodes are located at least in the plurality of first staggered regions.

A touch device according to an embodiment of the present invention includes a plurality of first touch electrodes, a plurality of first dummy electrodes, a plurality of second touch electrodes, and a plurality of second dummy electrodes. Each of the first dummy electrodes is disposed between two adjacent ones of the plurality of first touch electrodes. Each second dummy electrode is disposed between two adjacent ones of the plurality of second touch electrodes. The plurality of first touch electrodes are interlaced with the plurality of second touch electrodes to define a plurality of first interlaced regions. The plurality of first touch electrodes and the plurality of second dummy electrodes are interlaced to define a plurality of second interlaced regions. The plurality of second touch electrodes are interlaced with the plurality of first dummy electrodes to define a plurality of third interlaced regions. Each of the first touch electrodes includes a plurality of first trunks extending in a first direction and a plurality of second trunks extending in a second direction. The first direction is interleaved with the second direction. A plurality of first backbones intersect with a plurality of second backbones to form a plurality of first grids. Each first grid is defined by two segments of two adjacent first trunks and two segments of two adjacent second trunks. The number density of the plurality of first grids on a second staggered region is greater than that on a first staggered region.

In an embodiment of the present invention, in the plan view of the above-mentioned touch device, the plurality of first branches and the plurality of second branches of each first touch electrode are separated from the plurality of second touch electrodes.

In an embodiment of the present invention, the above-mentioned touch device further includes a plurality of first dummy patterns. The plurality of first dummy patterns are respectively disposed in the plurality of first grids and separated from the plurality of first touch electrodes. Each of the first dummy patterns includes a first part and a second part. The first part and the two second branches on the corresponding first grid are arranged in the first direction and are structurally separated from each other. The second part intersects the first part, is aligned with the two first branches on the corresponding first grid in the second direction, and is structurally separated from each other.

In an embodiment of the present invention, the first portion of each of the above-mentioned first dummy patterns and one of the two second branches on the corresponding first grid have a first distance, and the first distance is less than or equal to 8 μm .

In an embodiment of the present invention, the second portion of each of the first dummy patterns and one of the two first branches on the corresponding first grid have a second distance, and the second distance is less than or equal to 8μm.

In an embodiment of the present invention, the above-mentioned first stem of the first touch electrode, the second stem of the first touch electrode, the first branch of the first touch electrode, and the second branch of the first touch electrode . The line width of at least one of the first portion of the first dummy pattern and the second portion of the first dummy pattern is less than or equal to 8 μm.

In an embodiment of the present invention, the first branch of the first touch electrode includes a first part and a second part respectively located on opposite sides of the corresponding first trunk, and the length of the first part of the first branch is the same as the length of the first part. The length of the second part of a branch is different.

In an embodiment of the present invention, the second branch of the first touch electrode includes a first part and a second part respectively located on opposite sides of the corresponding second trunk, and the length of the first part of the second branch is the same as the length of the first part. The lengths of the second parts of the two branches are different.

In an embodiment of the present invention, each of the above-mentioned second touch electrodes includes a plurality of third stems, a plurality of fourth stems, a plurality of third branches, and a plurality of fourth branches. The plurality of third trunks extend substantially in the first direction. A plurality of fourth backbones extend substantially in the second direction, wherein a plurality of third backbones intersect a plurality of fourth backbones to form a plurality of second grids, and each second grid is composed of two adjacent second grids. The two segments of the three trunks are defined by the two segments of the adjacent two fourth trunks. The plurality of third branches are structurally separated from each other, wherein the plurality of third branches intersect two sections of two adjacent third trunks of at least one second grid of the plurality of second grids. The plurality of fourth branches are structurally separated from each other, wherein the plurality of fourth branches intersect two sections of two adjacent fourth trunks of at least one second grid of the plurality of second grids. The plurality of third branches and the plurality of fourth branches of the plurality of second touch electrodes are located at least in the plurality of first staggered regions.

In an embodiment of the present invention, in the plan view of the above-mentioned touch device, the plurality of third branches and the plurality of fourth branches of each second touch electrode are separated from the plurality of first touch electrodes.

In an embodiment of the present invention, the above-mentioned touch device further includes a plurality of second dummy patterns. The plurality of second dummy patterns are respectively disposed in the plurality of second grids and separated from the plurality of second touch electrodes. Each second dummy pattern includes a third part and a fourth part. The third portion and the corresponding two fourth branches on the second grid are arranged in the first direction and are structurally separated from each other. The fourth part intersects the third part, is aligned with the two third branches on the corresponding second grid in the second direction, and is structurally separated from each other.

In an embodiment of the present invention, the third portion of each second dummy pattern and one of the two fourth branches on the corresponding second grid have a third distance, and the third distance is less than or equal to 8 μm .

In an embodiment of the present invention, the fourth part of each of the second dummy patterns and one of the two third branches on the corresponding second grid have a fourth distance, and the fourth distance is less than or equal to 8 μm .

In an embodiment of the present invention, the above-mentioned third stem of the second touch electrode, the fourth stem of the second touch electrode, the third branch of the second touch electrode, and the fourth branch of the second touch electrode , The line width of at least one of the third portion of the second dummy pattern and the fourth portion of the second dummy pattern is less than or equal to 8 μm.

In an embodiment of the present invention, in the plan view of the above-mentioned touch device, a plurality of first trunks of a plurality of first touch electrodes, a plurality of first parts of a plurality of first dummy patterns, a plurality of second A plurality of third trunks of the touch electrodes and a plurality of third portions of the second dummy patterns are arranged at a spacing, and the spacing is P1, and the first portions of the first branches of the first touch electrodes are located at the corresponding first trunks. On one side, the length of the first part of the first branch is a1, and 0.25·P1≤a1≤0.75·P1.

In an embodiment of the present invention, each of the above-mentioned second touch electrodes includes a plurality of third stems and a plurality of fourth stems. The plurality of third trunks extend substantially in the first direction. A plurality of fourth stems extend substantially in the second direction, wherein a plurality of third stems intersect a plurality of fourth stems to form a plurality of second grids. In the same first staggered region, the number density of the plurality of second grids is greater than the number density of the plurality of first grids.

In an embodiment of the present invention, the width of one of the plurality of first grids on the above-mentioned first staggered region is greater than the width of the other of the plurality of first grids on the second staggered region.

In an embodiment of the present invention, each of the above-mentioned first touch electrodes further includes a plurality of first branches and a plurality of second branches. The plurality of first branches are structurally separated from each other, wherein the plurality of first branches intersect two sections of two adjacent first trunks of at least one first grid of the plurality of first grids. The plurality of second branches are structurally separated from each other, wherein the plurality of second branches intersect two sections of two adjacent second trunks of at least one first grid of the plurality of first grids. The plurality of first branches and the plurality of second branches of the plurality of first touch electrodes are located in the plurality of first staggered regions.

In an embodiment of the present invention, each of the above-mentioned second touch electrodes includes a plurality of third stems extending substantially in the first direction and a plurality of fourth stems substantially extending in the second direction; A plurality of third backbones intersect with a plurality of fourth backbones to form a plurality of second grids; each second grid is defined by two sections of two adjacent third backbones and two sections of two adjacent fourth backbones Definition: The number density of a plurality of second grids on a third staggered region is greater than the number density on a first staggered region.

In an embodiment of the present invention, the width of one of the plurality of second grids on the above-mentioned first staggered region is greater than the width of the other of the plurality of second grids on the third staggered region.

In an embodiment of the present invention, each of the above-mentioned second touch electrodes further includes a plurality of third branches and a plurality of fourth branches. The plurality of third branches are structurally separated from each other, wherein the plurality of third branches intersect two sections of two adjacent third trunks of at least one second grid of the plurality of second grids. The plurality of fourth branches are structurally separated from each other, wherein the plurality of fourth branches intersect two sections of two adjacent fourth trunks of at least one second grid of the plurality of second grids. The plurality of third branches and the plurality of fourth branches of the plurality of second touch electrodes are located in the plurality of first staggered regions.

Description of drawings

FIG. 1 is a schematic cross-sectional view of a touch device according to an embodiment of the present invention.

FIG. 2 is a schematic top view of a touch element of a touch device according to an embodiment of the present invention.

FIG. 3 is an enlarged schematic diagram of a part of a touch element of a touch device according to an embodiment of the present invention.

FIG. 4 shows the first conductive layer of the touch element of the touch device of FIG. 3 .

FIG. 5 shows the second conductive layer of the touch element of the touch device of FIG. 3 .

FIG. 6 shows a plurality of first dummy patterns, a plurality of second dummy patterns, and a first touch electrode and a second touch electrode interlaced in the touch device of FIG. 3 .

FIG. 7 is a schematic top view of the touch device of the first comparative example.

FIG. 8 is a schematic top view of a touch device according to a second comparative example.

FIG. 9 is a schematic top view of a touch device according to a third comparative example.

10 is a schematic top view of a touch device according to an embodiment of the present invention.

FIG. 11 is a schematic top view of a touch device according to an embodiment of the present invention.

FIG. 12 is a schematic top view of a touch device according to an embodiment of the present invention.

13 is a schematic top view of a touch device according to an embodiment of the present invention.

FIG. 14 is a schematic top view of a touch device according to an embodiment of the present invention.

FIG. 15 shows the first conductive layer of the touch element of the touch device of FIG. 14 .

FIG. 16 shows the second conductive layer of the touch element of the touch device of FIG. 14 .

FIG. 17 shows a plurality of first dummy patterns, a plurality of second dummy patterns, and a first touch electrode and a second touch electrode which are alternated in the touch device of FIG. 14 .

FIG. 18 is a schematic top view of a touch device according to an embodiment of the present invention.

19 is a schematic top view of a touch device according to an embodiment of the present invention.

FIG. 20 is a schematic top view of a touch device according to an embodiment of the present invention.

The reference numbers are as follows:

10, 10A, 10B, 10C, 10D, 10E, 10F, 10G, 10H, 10'-1, 10'-2, 10'-3: Touch device

10a: Touch surface

110: the first conductive layer

112: The first touch electrode

112a: First Trunk

112as: segment

112b: Second Trunk

112bs: segment

112c: First branch

112c-1, 112d-1, 132d-1: Part 1

112c-2, 112d-2, 132d-2: Part II

112d: Second branch

112h: First grid

114: First virtual electrode

116: First virtual pattern

116a: Part 1

116b: Part II

120: The first insulating layer

130: the second conductive layer

132: The second touch electrode

132a: Third Trunk

132as: segment

132b: Fourth Trunk

132bs: segment

132c: The third branch

132c-1: Part I

132c-2: Part II

132d: Fourth branch

132h: Second grid

134: Second virtual electrode

136: Second virtual pattern

136a: Part III

136b: Part IV

140: Second insulating layer

210: First substrate

220: pixel array layer

230: Second substrate

230a: External surface

240: Display medium

250: Common electrode

300: Backlight

410: The first polarizer

420: Second polarizer

A1, A2, B1, B2, C1, C2, D1, D2: Width

a1, a2, a3, a4, a5, a6, a7, a8: length

DP: Display Components

DS1: first distance

DS2: Second distance

DS3: Third Distance

DS4: Fourth Distance

d1: first direction

d2: the second direction

K: local

P1, P2: Spacing

R1: The first staggered area

R2: Second staggered area

R3: The third staggered area

R4: Fourth staggered area

S1, S2, S3, S4: Horizontal spacing

TS: Touch Components

W112a, W112b, W112c, W112d, W116a, W116b, W132a, W132b, W132c, W132d, W136a, W136b: Line width

x, y: direction

Detailed ways

Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals are used in the drawings and description to refer to the same or like parts.

It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to a physical and/or electrical connection. Furthermore, "electrically connected" or "coupled" may refer to the existence of other elements between the two elements.

As used herein, "about," "approximately," or "substantially" includes the stated value and the average within an acceptable deviation from the particular value as determined by one of ordinary skill in the art, given the measurement in question and the A specified amount of measurement-related error (ie, a limitation of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, as used herein, "about", "approximately" or "substantially" may be used to select a more acceptable range of deviation or standard deviation depending on optical properties, etching properties or other properties, and not one standard deviation may apply to all properties. .

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be construed as having meanings consistent with their meanings in the context of the related art and the present invention, and are not to be construed as idealized or excessive Formal meaning, unless expressly defined as such herein.

FIG. 1 is a schematic cross-sectional view of a touch device 10 according to an embodiment of the present invention.

Referring to FIG. 1 , the touch device 10 includes a touch element TS. The touch element TS includes a first conductive layer 110 , a first insulating layer 120 covering the first conductive layer 110 , a second conductive layer 130 disposed on the first insulating layer 120 , and a second insulating layer covering the second conductive layer 130 140.

In this embodiment, the touch device 10 may optionally include a display element DP. The display element DP includes a first substrate 210, a pixel array layer 220 disposed on the first substrate 210, an opposite second substrate 230 disposed on the first substrate 210, a common electrode 250, and a pixel array disposed on the second substrate 230 and the pixel array. The display medium 240 between the layers 220, wherein the potential difference between the common electrode 250 and a plurality of pixel electrodes (not shown) of the pixel array layer 220 is used to drive the display medium 240.

In this embodiment, the pixel array layer 220 and the common electrode 250 of the display element DP can be selectively disposed on the first substrate 210 and the second substrate 230, respectively. However, the present invention is not limited thereto, and in other embodiments, the pixel array layer 220 and the common electrode 250 of the display element DP may also be disposed on the same substrate (eg, the first substrate 210 ).

In this embodiment, the display medium 240 can be selectively a non-self-luminous material (such as, but not limited to, liquid crystal), and the display element DP can include a backlight source 300, a first polarizer 410 and a second polarizer 420, wherein the first polarizer 410 and the second polarizer 420. A polarizer 410 and a second polarizer 420 are respectively located on opposite sides of the display medium 240 , and the first polarizer 410 is disposed between the backlight source 300 and the display medium 240 . However, the present invention is not limited thereto. In other embodiments, the display medium 240 may also be a self-luminous material (such as, but not limited to, organic electroluminescent materials, micro light-emitting diodes, etc.), and the display element DP may also not include a backlight source. 300.

In this embodiment, the touch element TS can be selectively formed on the outer surface 230a of the second substrate 230 of the display element DP. In detail, in this embodiment, the first conductive layer 110 , the first insulating layer 120 , the second conductive layer 130 and the second insulating layer 140 of the touch element TS can be sequentially stacked on the second layer of the display element DP. on the outer surface 230a of the substrate 230 . In other words, the touch device 10 of this embodiment may be an on-cell touch device. However, the present invention is not limited thereto, and in another embodiment, the touch element TS can also be selectively formed on another substrate (not shown) to form a touch substrate, the touch substrate and the display element DP bonding, and the touch device 10 can also be an out-cell touch device; in another embodiment, the touch element TS can also be selectively formed on the second substrate 230 and the display medium. 240 and/or between the first substrate 210 and the display medium 240, and the touch device 10 may also be an in-cell touch device.

FIG. 2 is a schematic top view of the touch element TS of the touch device 10 according to an embodiment of the present invention.

FIG. 3 is an enlarged schematic diagram of a part K of the touch element TS of the touch device 10 according to an embodiment of the present invention. FIG. 3 corresponds to the local K of FIG. 2 . FIG. 2 omits the plurality of first dummy patterns 116 and the plurality of second dummy patterns 136 of FIG. 3 .

FIG. 4 shows the first conductive layer 110 of the touch element TS of the touch device 10 of FIG. 3 .

FIG. 5 shows the second conductive layer 130 of the touch element TS of the touch device 10 of FIG. 3 .

FIG. 6 shows a plurality of first dummy patterns 116 , a plurality of second dummy patterns 136 , and a first touch electrode 112 and a second touch electrode 132 of the touch device 10 in FIG. 3 .

Referring to FIG. 1 and FIG. 2 , the first conductive layer 110 of the touch element TS includes a plurality of first touch electrodes 112 . The plurality of first touch electrodes 112 are structurally separated from each other and arranged along the direction y. In this embodiment, the first conductive layer 110 of the touch element TS further includes a plurality of first dummy electrodes 114 , wherein each first dummy electrode 114 is disposed between adjacent two of the plurality of first touch electrodes 112 between. The plurality of first touch electrodes 112 and the plurality of first dummy electrodes 114 are alternately arranged along the direction y and are structurally separated from each other. For example, in this embodiment, the material of the first conductive layer 110 may include metal, but the invention is not limited thereto.

Please refer to FIG. 2 , FIG. 3 and FIG. 4 . In addition, it should be noted that in any of the drawings in this specification, the distance between each first touch electrode 112 and the adjacent first dummy electrode 114 (ie, The width of the disconnection between the first touch electrode 112 and the first dummy electrode 114) is only shown to schematically represent the disconnection between the first touch electrode 112 and the first dummy electrode 114; The relationship between the distance between the touch electrodes 112 and the adjacent first dummy electrodes 114 (ie, the width of the disconnection between the first touch electrodes 112 and the first dummy electrodes 114 ) and the size of the first grid 112h is not intended to limit this invention.

Referring to FIGS. 1 , 2 and 3 , the second conductive layer 130 of the touch element TS includes a plurality of second touch electrodes 132 . Referring to FIG. 3 and FIG. 6 , a plurality of second touch electrodes 132 are interlaced with a plurality of first touch electrodes 112 to define a plurality of first interlaced regions R1 . Referring to FIG. 2 and FIG. 3 , the plurality of second touch electrodes 132 are structurally separated from each other and arranged along the direction x. In this embodiment, the direction x and the direction y may be perpendicular, but the present invention is not limited to this.

Referring to FIG. 1 and FIG. 2 , for example, in this embodiment, a plurality of first touch electrodes 112 can be used as driving electrodes (TX), and a plurality of second touch electrodes 132 can be used as receiving electrodes (RX) Use; the plurality of second touch electrodes 132 used as receiving electrodes (RX) may be farther from the display element DP than the plurality of first touch electrodes 112 used as driving electrodes (TX); but the invention is not limited thereto.

Referring to FIG. 2 and FIG. 3 , in this embodiment, the second conductive layer 130 of the touch element TS further includes a plurality of second dummy electrodes 134 , wherein each second dummy electrode 134 is disposed on the plurality of second touch electrodes between two adjacent electrodes 132 . The plurality of second touch electrodes 132 and the plurality of second dummy electrodes 134 are alternately arranged along the direction x and are structurally separated from each other. For example, in this embodiment, the material of the second conductive layer 130 may include metal, but the invention is not limited thereto.

Please refer to FIG. 2 , FIG. 3 and FIG. 5 . In addition, it should be noted that in any of the drawings in this specification, the distance between each second touch electrode 132 and the adjacent second dummy electrode 134 (ie, The width of the disconnection between the second touch electrode 132 and the second dummy electrode 134 is only shown to schematically represent the disconnection between the second touch electrode 132 and the second dummy electrode 134; The relationship between the distance between the touch electrodes 132 and the adjacent second dummy electrodes 134 (ie, the width of the disconnection between the second touch electrodes 132 and the second dummy electrodes 134 ) and the size of the second grid 132h is not intended to limit this invention.

3 and 4 , each of the first touch electrodes 112 includes a plurality of first trunks 112a extending substantially in the first direction d1 and a plurality of second trunks 112b extending substantially in the second direction d2 , wherein the first direction d1 and the second direction d2 intersect, and a plurality of first trunks 112a and a plurality of second trunks 112b intersect to form a plurality of first grids 112h, and each first grid 112h is composed of adjacent two The two segments 112as of the first trunk 112a are defined by the two segments 112bs of the two adjacent second trunks 112b. In short, in this embodiment, each of the first touch electrodes 112 can be a metal mesh.

Referring to FIG. 4 , it should be noted that each of the first touch electrodes 112 further includes a plurality of first branches 112c and a plurality of second branches 112d. The plurality of first branches 112c are structurally separated from each other. The plurality of first branches 112c intersect with two segments 112as of two adjacent first trunks 112a of at least one first grid 112h. The plurality of second branches 112d are structurally separated from each other. The plurality of second branches 112d intersect at two sections 112bs of two adjacent second trunks 112b of at least one first grid 112h.

Referring to FIG. 3 and FIG. 4 , in this embodiment, the plurality of first touch electrodes 112 and the plurality of second touch electrodes 132 are interlaced in the plurality of first interlace regions R1 , and the plurality of first touch electrodes 112 The plurality of first branches 112c and the plurality of second branches 112d are located at least in the plurality of first interleaved regions R1. In detail, the plurality of first touch electrodes 112 are further interlaced with the plurality of second dummy electrodes 134 to define the plurality of second interlaced regions R2; the plurality of second touch electrodes 132 are further interlaced with the plurality of first dummy electrodes 114 staggered to define a plurality of third staggered regions R3; a plurality of first dummy electrodes 114 and a plurality of second dummy electrodes 134 staggered to define a plurality of fourth staggered regions R4; The plurality of first branches 112c and the plurality of second branches 112d of the control electrode 112 may be located in a plurality of second staggered regions R2 in addition to the plurality of first staggered regions R1, but the invention is not limited thereto.

Referring to FIGS. 3 and 4 , in this embodiment, in the top view of the touch device 10 , the plurality of first branches 112c and the plurality of second branches 112d of each first touch electrode 112 and the second touch Electrodes 132 are separated.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , an edge-induced electric field can be formed between the plurality of first touch electrodes 112 and the plurality of second touch electrodes 132 to detect whether there is a conductive object (such as but not limited to: fingers, stylus, etc.) contacting or approaching the touch surface 10a of the touch device 10 . Referring to FIGS. 1 , 3 and 4 , it is worth mentioning that since the first touch electrode 112 has the first branch 112 c and the second branch 112 d, the first branch 112 c or the second branch of the first touch electrode 112 The horizontal distance S1 (marked in FIG. 3 ) between 112 d and the third stem 132 a or the fourth stem 132 b of the second touch electrode 132 is smaller than that between the first stem 112 a or the second stem 112 b of the first touch electrode 112 and the second touch The horizontal distance S2 of the third trunk 132a or the fourth trunk 132b of the electrode 132 ; that is, the first branch 112c/or the second branch 112d of the first touch electrode 112 and the third trunk 132a of the second touch electrode 132 Or the distance of the fourth trunk 132b is short; therefore, the first branches 112c and/or the second branches 112d of the first touch electrodes 112 help to separate the edges between the first touch electrodes 112 and the second touch electrodes 132 The power lines of the induced electric field are pushed up toward the touch surface 10a, thereby increasing Cm%, and improving the performance of the touch device 10 related to Cm% (such as but not limited to: touch sensitivity), where Cm%=[(Cm-Cm') /Cm]*100%, where Cm is the sensing capacitance of the first touch electrode 112 and the second touch electrode 132 when no conductive object (not shown) is provided on the touch surface 10a, and Cm' is the touch surface 10a The inductive capacitance of the first touch electrodes 112 and the second touch electrodes 132 when a conductive material (not shown) is disposed thereon.

Referring to FIGS. 3 and 4 , in this embodiment, the first conductive layer 110 of the touch element TS further includes a plurality of first dummy patterns 116 , which are respectively disposed in the plurality of first grids 112h and are connected with a plurality of first dummy patterns 116 . The first touch electrodes 112 are separated. Each first dummy pattern 116 includes a first portion 116a and a second portion 116b, wherein the first portion 116a and the two second branches 112d on a corresponding first grid 112h are arranged in the first direction d1 and in the structure The second portion 116b intersects the first portion 116a, and the two first branches 112c on the corresponding first grid 112h are arranged in the second direction d2 and are structurally separated from each other. In short, the first dummy patterns 116 may be cross-shaped electrodes located in the first grid 112h of the first touch electrodes 112 .

Referring to FIG. 4, in this embodiment, the first portion 116a of each first dummy pattern 116 and one of the two second branches 112d on a corresponding first grid 112h have a first distance DS1, and the first A distance DS1 is less than or equal to 8 μm; the second portion 116b of each first dummy pattern 116 and one of the two first branches 112c on the corresponding first grid 112h have a second distance DS2, and the second distance DS2 is less than or equal to 8μm. In other words, in this embodiment, each of the first dummy patterns 116 and a corresponding one of the first touch electrodes 112 have a plurality of breakpoints (ie, the positions marked DS1 and DS2), and the width of each breakpoint is less than or equal to 8μm.

Referring to FIG. 4 , in this embodiment, the first trunk 112 a of the first touch electrode 112 , the second trunk 112 b of the first touch electrode 112 , the first branch 112 c of the first touch electrode 112 , the first contact The line width of at least one of the second branch 112d of the control electrode 112, the first portion 116a of the first dummy pattern 116, and the second portion 116b of the first dummy pattern 116 is less than or equal to 8 μm. For example, in this embodiment, the line width W112a of the first trunk 112a of the first touch electrode 112 , the line width W112b of the second trunk 112b of the first touch electrode 112 , the The line width W112c of one branch 112c, the line width W112d of the second branch 112d of the first touch electrode 112, the line width W116a of the first portion 116a of the first dummy pattern 116, and the line width of the second portion 116b of the first dummy pattern 116 The line widths W116b are all less than or equal to 8 μm, but the invention is not limited to this.

Referring to FIGS. 3 and 5 , each of the second touch electrodes 132 includes a plurality of third trunks 132a extending substantially in the first direction d1 and a plurality of fourth trunks 132b extending substantially in the second direction d2 , wherein a plurality of third trunks 132a intersect with a plurality of fourth trunks 132b to form a plurality of second grids 132h, and each second grid 132h consists of two segments 132as of two adjacent third trunks 132a and a Defined by the two segments 132bs adjacent to the two fourth trunks 132b. In short, in this embodiment, each of the second touch electrodes 132 can be a metal mesh.

Referring to FIG. 5 , it should be noted that, in this embodiment, each of the second touch electrodes 132 further includes a plurality of third branches 132c and a plurality of fourth branches 132d. The plurality of third branches 132c are separated from each other in structure, wherein the plurality of third branches 132c intersect the two segments 132as of two adjacent third trunks 132a of at least one second grid 132h. The plurality of fourth branches 132d are structurally separated from each other, wherein the plurality of fourth branches 132d intersect the two segments 132bs of two adjacent fourth trunks 132b of at least one second grid 132h.

Referring to FIG. 3 and FIG. 5 , in this embodiment, the plurality of third branches 132c and the plurality of fourth branches 132d of the plurality of second touch electrodes 132 are located at least in the plurality of first staggered regions R1. In detail, in this embodiment, the plurality of third branches 132c and the plurality of fourth branches 132d of the plurality of second touch electrodes 132 may be located in a plurality of third branches 132d in addition to the plurality of first interlaced regions R1 Staggered region R3.

Referring to FIGS. 3 and 5 , in the present embodiment, in the top view of the touch device 10 , the plurality of third branches 132c and the plurality of fourth branches 132d and the plurality of first branches of each second touch electrode 132 The touch electrodes 112 are separated.

Referring to FIGS. 1 , 3 and 5 , similarly, since the second touch electrode 132 has the third branch 132 c and the fourth branch 132 d , the third branch 132 c or the fourth branch 132 d of the second touch electrode 132 is the same as the third branch 132 c or the fourth branch 132 d The horizontal distance S3 (shown in FIG. 3 ) of the first trunk 112 a or the second trunk 112 b of a touch electrode 112 is smaller than the distance between the third trunk 132 a or the fourth trunk 132 b of the second touch electrode 132 and the first touch electrode 112 The horizontal distance S4 of the first trunk 112 a or the second trunk 112 b (shown in FIG. 3 ); that is, the third branch 132 c/or the fourth branch 132 d of the second touch electrode 132 and the The distance between a trunk 112a or the second trunk 112b is short; therefore, the third branch 132c and/or the fourth branch 132d of the second touch electrode 132 helps to connect the first touch electrode 112 and the second touch electrode 132 The power lines of the induced electric field between the edges push up toward the touch surface 10a, thereby increasing Cm% and improving the performance of the touch device 10 related to Cm% (eg, but not limited to: touch sensitivity).

Referring to FIGS. 3 and 5 , in this embodiment, the second conductive layer 130 of the touch element TS further includes a plurality of second dummy patterns 136 , which are respectively disposed in the plurality of second grids 132 h and are connected with a plurality of second dummy patterns 136 . The second touch electrodes 132 are separated. Each second dummy pattern 136 includes a third portion 136a and a fourth portion 136b, wherein the third portion 136a and the two fourth branches 132d on the corresponding second grid 132h are arranged in the first direction d1 and structurally Separated from each other, the fourth portion 136b intersects the third portion 136a, and the two third branches 132c on the corresponding second grid 132h are arranged in the second direction d2 and are structurally separated from each other. In short, the second dummy patterns 136 may be cross-shaped electrodes located in the second grid 132h of the second touch electrodes 132 .

Referring to FIG. 5, in this embodiment, the third portion 136a of each second dummy pattern 136 and one of the two fourth branches 132d on the corresponding second grid 132h have a third distance DS3, and the third The distance DS3 is less than or equal to 8 μm; the fourth portion 136b of each second dummy pattern 136 and one of the two third branches 132c on the corresponding second grid 132h have a fourth distance DS4, and the fourth distance DS4 is less than or is equal to 8 μm. In short, in this embodiment, each second dummy pattern 136 and a corresponding second touch electrode 132 have a plurality of breakpoints (ie, the places marked DS3 and DS4), and each breakpoint has a The width is less than or equal to 8 μm.

Referring to FIG. 5 , in this embodiment, the third trunk 132 a of the second touch electrode 132 , the fourth trunk 132 b of the second touch electrode 132 , the third branch 132 c of the second touch electrode 132 , the second contact The line width of at least one of the fourth branch 132d of the control electrode 132, the third portion 136a of the second dummy pattern 136, and the fourth portion 136b of the second dummy pattern 136 is less than or equal to 8 μm. For example, in this embodiment, the line width W132a of the third trunk 132a of the second touch electrode 132 , the line width W132b of the fourth trunk 132b of the second touch electrode 132 , the line width W132b of the fourth trunk 132b of the second touch electrode 132 , the The line width W132c of the three branches 132c, the line width W132d of the fourth branch 132d of the second touch electrode 132, the line width W136a of the third portion 136a of the second dummy pattern 136, and the line width of the fourth portion 136b of the second dummy pattern 136 The line widths W136b are all less than or equal to 8 μm, but the invention is not limited to this.

FIG. 7 is a schematic top view of the touch control device 10'-1 of the first comparative example. The touch device 10 ′-1 of the first comparative example in FIG. 7 is similar to the touch device 10 of the above-mentioned embodiment, and the difference between the two is: the first conductive layer 110 of the touch device 10 ′-1 of the first comparative example The first touch electrodes 112 and the first dummy electrodes 114 are included, but the first dummy patterns 116 located in the first grid 112h of the first touch electrodes 112 of the touch device 10 are not included; The first grids 112h of the first touch electrodes 112 of the control device 10'-1 are smaller and denser than the first grids 112h of the first touch electrodes 112 of the touch device 10 of the above-mentioned embodiment; The first grid 112h of the touch device 10'-1 of a comparative example is not provided with the first branch 112c and the second branch 112d of the touch device 10 of the above-mentioned embodiment; the touch device 10' of the first comparative example The second conductive layer 130 of -1 includes the second touch electrodes 132 and the second dummy electrodes 134, but does not include the second touch electrodes 132 in the second grid 132h of the second touch electrodes 132 of the touch device 10 of the above-mentioned embodiment. Two dummy patterns 136; the second mesh 132h of the second touch electrodes 132 of the touch device 10'-1 of the first comparative example is larger than the second mesh of the second touch electrodes 132 of the touch device 10 of the above-mentioned embodiment The grids 132h are small and densely distributed; the second grid 132h of the touch device 10'-1 of the first comparative example is not provided with the third branch 132c and the fourth branch 132d of the touch device 10 of the above-mentioned embodiment .

FIG. 8 is a schematic top view of the touch device 10'-2 of the second comparative example. The touch device 10 ′- 2 of the second comparative example in FIG. 8 is similar to the touch device 10 of the above-mentioned embodiment, and the difference between the two is: the first grid 112h of the touch device 10 ′- 2 of the second comparative example The first branch 112c and the second branch 112d of the touch device 10 of the above-mentioned embodiment are not provided thereon; the first conductive layer 110 of the touch device 10'-2 of the second comparative example includes a first touch electrode 112 and a second branch 112 d. A dummy electrode 114, but does not include the first dummy pattern 116 located in the second grid 112h of the first touch electrode 112 of the touch device 10 of the above-mentioned embodiment; the touch device 10'-2 of the second comparative example The second grids 112h of the first touch electrodes 112 are smaller and denser than the first grids 112h of the first touch electrodes 112 of the touch device 10 of the above-mentioned embodiment; the touch control of the second comparative example The third branch 132c and the fourth branch 132d of the touch device 10 of the above-mentioned embodiment are not provided on the second grid 132h of the device 10'-2.

FIG. 9 is a schematic top view of the touch device 10'-3 of the third comparative example. The touch device 10'-3 of the third comparative example in FIG. 9 is similar to the touch device 10 of the above-mentioned embodiment, and the difference between the two is: the first grid 112h of the touch device 10'-3 of the third comparative example The first branch 112c and the second branch 112d of the touch device 10 of the above-mentioned embodiment are not provided on it; the second grid 132h of the touch-control device 10'-3 of the third comparative example is not provided with the above-mentioned embodiment The third branch 132c and the fourth branch 132d of the touch device 10 .

Please refer to Table 1 below. The data in Table 1 refers to the data of one sensing unit of each comparative example and the embodiment, and the sensing unit includes all the components of each comparative example and the embodiment in a first staggered region R1 . Cm in Table 1 below refers to the inductive capacitances of the first touch electrodes 112 and the second touch electrodes 132 when no conductive objects are provided on the touch surfaces of the comparative examples and the embodiments. Cp in Table 1 below refers to the parasitic capacitance between the second touch electrode 132 and the common electrode 250 . ΔCm=Cm-Cm' in Table 1 below, where Cm' refers to the inductive capacitances of the first touch electrodes 112 and the second touch electrodes 132 when conductive objects are provided on the touch surfaces of the comparative examples and embodiments. Cm%=[(Cm-Cm')/Cm]*100% in the following table 1, wherein Cm is the first touch electrode 112 and the second touch electrode when no conductive objects (not shown) are provided on the touch surface 10a The inductive capacitance of the electrode 132, and Cm' is the inductive capacitance of the first touch electrode 112 and the second touch electrode 132 when a conductive object (not shown) is provided on the touch surface 10a.

The data in Table 1 below proves that the touch device 10 according to an embodiment of the present invention has at least one of the following benefits:

1. A plurality of breakpoints between each first dummy pattern 116 and a corresponding one of the first touch electrodes 112 (ie, the places marked DS1 and DS2) and/or each second dummy pattern 136 and a corresponding first touch electrode 112 The multiple breakpoints between the two touch electrodes 132 (ie, the places marked DS3 and DS4 ) can reduce the number of intersections between the first touch electrodes 112 and the second touch electrodes 132 , thereby effectively reducing the overall capacitance (ie, Cm+ Cp) and increase Cm%; further adjust the resistance of the first touch electrode 112 and the second touch electrode 132 (for example, but not limited to: increase the film thickness), so that the resistance and capacitance of the touch device 10 can be loaded (RC Loading) decline;

2. By arranging the first branch 112c and the second branch 112d on the first grid 112h of the first touch electrode 112 and/or by arranging the third branch 132c on the second grid 132h of the second touch electrode 132 With the fourth branch 132d, the line of force of the edge-induced electric field between the first touch electrode 112 and the second touch electrode 132 can be pushed up toward the touch surface 10a, thereby increasing Cm%, and improving the touch device 10 and Cm% Relevant performance (such as but not limited to: touch sensitivity);

3. No visual effects such as Moiré.

[Table I]

Referring to FIGS. 3 , 4 and 5 , in this embodiment, in the top view of the touch device 10 , the plurality of first trunks 112 a of the plurality of first touch electrodes 112 and the plurality of second touch electrodes 132 The plurality of third trunks 132a, the plurality of first portions 116a of the plurality of first dummy patterns 116, and the plurality of third portions 136a of the plurality of second dummy patterns 136 are arranged with a pitch P1 along the second direction d2, a first The first portion 112c-1 of a first branch 112c of a touch electrode 112 is located on one side of a corresponding first trunk 112a, and the length of the first portion 112c-1 of the first branch 112c is a1, and 0.25·P1≤a1 ≤0.75·P1.

Referring to FIGS. 3 , 4 and 5 , in this embodiment, in the top view of the touch device 10 , the plurality of second stems 112 b of the plurality of first touch electrodes 112 and the plurality of second touch electrodes 132 The plurality of fourth trunks 132b, the plurality of second portions 116b of the plurality of first dummy patterns 116, and the plurality of fourth portions 136b of the plurality of second dummy patterns 136 are arranged with a pitch P2 along the first direction d1, a first The first part 112d-1 of a second branch 112d of a touch electrode 112 is located on one side of a corresponding second trunk 112b, and the length of the first part 112d-1 of the second branch 112d is a2, and 0.25·P2≤a2 ≤0.75·P2.

Please refer to Table 2 below. The data in Table 2 refers to the data of one sensing unit of the first comparative example and the embodiment. In addition to the data of one sensing unit of the first comparative example, Table 2 below The data of one sensing unit of the touch device 10 of an embodiment is further listed under various relationships between a1 and P1 and various relationships between a2 and P2. The data in Table 2 below shows that 0.25·P1≤a1≤0.75·P1 and/or 0.25·P2≤a2≤0.75·P2 can increase Cm% and improve the The performance of the touch device 10 related to Cm% (eg, but not limited to: touch sensitivity).

[Table II]

It must be noted here that the following embodiments use the element numbers and part of the contents of the previous embodiments, wherein the same numbers are used to represent the same or similar elements, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.

FIG. 10 is a schematic top view of a touch device 10A according to an embodiment of the present invention. The touch device 10A of FIG. 10 is similar to the touch device 10 described above, and the difference between the two is that the second conductive layer 130 of the touch device 10A of FIG. 10 is different from the second conductive layer 130 of the touch device 10 described above.

10, specifically, in this embodiment, the second conductive layer 130 includes the second touch electrodes 132 and the second dummy electrodes 134, but does not include the second dummy pattern 136 of the touch device 10; The second grids 132h of the second touch electrodes 132 of the control device 10A are smaller and denser than the second grids 132h of the second touch electrodes 132 of the touch device 10; The grid 132h is not provided with the third branch 132c and the fourth branch 132d of the touch device 10 .

FIG. 11 is a schematic top view of a touch device 10B according to an embodiment of the present invention. The touch device 10B of FIG. 11 is similar to the above-mentioned touch device 10 , and the difference is that the first conductive layer 110 of the touch device 10B of FIG. 11 is different from the first conductive layer 110 of the above-mentioned touch device 10 .

11, specifically, in this embodiment, the first conductive layer 110 includes the first touch electrodes 112 and the first dummy electrodes 114, but does not include the first dummy pattern 116 of the touch device 10; The first grids 112h of the first touch electrodes 112 of the control device 10B are smaller and denser than the first grids 112h of the first touch electrodes 112 of the touch device 10; The grid 112h is not provided with the first branch 112c and the second branch 112d of the touch device 10 .

It is worth mentioning that, in the embodiment of FIG. 11 , since the first grids 112h of the first touch electrodes 112 of the touch device 10B are densely distributed and belong to the first touch electrodes of the first conductive layer 110 The 112 is disposed between the second touch electrodes 132 belonging to the second conductive layer 130 and the display element DP (refer to FIG. 1 ). Therefore, the first touch electrodes 112 of the touch device 10B can provide a better shielding effect. Mutual interference between the signal of the touch element TS and the signal of the display element DP is reduced.

FIG. 12 is a schematic top view of the touch device 10C according to an embodiment of the present invention. FIG. 12 omits the first dummy electrode and the second dummy electrode. The touch device 10C of FIG. 12 is similar to the above-mentioned touch device 10 , and the difference between the two is that the first branch 112 c and the third branch 132 c of the touch device 10C of FIG. 12 are the same as the first branch 112 c of the above-mentioned touch device 10 and the third branch 132c.

Please refer to FIG. 12 . Specifically, in this embodiment, the first branch 112c of the touch device 10C includes a first portion 112c-1 and a second portion 112c respectively located on opposite sides of a corresponding first trunk 112a -2, and the length a1 of the first portion 112c-1 of the first branch 112c is different from the length a2 of the second portion 112c-2 of the first branch 112c; the third branch 132c of the touch device 10C includes a first A first portion 132c-1 and a second portion 132c-2 on opposite sides of the three trunks 132a, and the length a3 of the first portion 132c-1 of the third branch 132c and the length a3 of the second portion 132c-2 of the third branch 132c a4 is different. In other words, the first branches 112c of the touch device 10C are distributed asymmetrically with respect to a first trunk 112a, and the third branches 132c of the touch device 10C are distributed asymmetrically with respect to a third trunk 132a.

FIG. 13 is a schematic top view of the touch device 10D according to an embodiment of the present invention. FIG. 13 omits the first dummy electrode and the second dummy electrode. The touch device 10D of FIG. 13 is similar to the above-mentioned touch device 10C, and the difference between the two is that the second branch 112d and the fourth branch 132d of the touch device 10D of FIG. 13 and the second branch 112d of the above-mentioned touch device 10C and the fourth branch 132d is different.

Please refer to FIG. 13 . Specifically, in this embodiment, the second branch 112d of the touch device 10D includes a first portion 112d-1 and a second portion 112d respectively located on opposite sides of a corresponding second trunk 112b -2, and the length a5 of the first portion 112d-1 of the second branch 112d is different from the length a6 of the second portion 112d-2 of the second branch 112d; the fourth branch 132d of the touch device 10D includes a first A first portion 132d-1 and a second portion 132d-2 on opposite sides of the four trunks 132b, and the length a7 of the first portion 132d-1 of the fourth branch 132d and the length a7 of the second portion 132d-2 of the fourth branch 132d a8 is different. In other words, in the embodiment of the touch device 10D, in addition to the asymmetric distribution of the first branch 112c with respect to the first trunk 112a and the asymmetric distribution of the third branch 132c with respect to the third trunk 132a, the second branch 112d is also distributed relatively While the second trunk 112b is asymmetrically distributed, the fourth branches 132d are also asymmetrically distributed with respect to the fourth trunk 132b.

FIG. 14 is a schematic top view of the touch device 10E according to an embodiment of the present invention.

FIG. 15 shows the first conductive layer 110 of the touch element TS of the touch device 10E of FIG. 14 .

FIG. 16 shows the second conductive layer 130 of the touch element TS of the touch device 10E of FIG. 14 .

FIG. 17 shows a plurality of first dummy patterns 116 , a plurality of second dummy patterns 136 , and a first touch electrode 112 and a second touch electrode 132 of the touch device 10E of FIG. 14 .

The touch device 10E of FIGS. 14 to 17 is similar to the touch device 10 of FIGS. 3 to 6 , and the difference between the two is that the pattern and touch of the first touch electrodes 112 of the touch device 10E in the second staggered region R2 The pattern of the first touch electrodes 112 of the control device 10 in the second staggered region R2 is different; the pattern of the second touch electrodes 132 of the touch device 10E in the third staggered region R3 is different from that of the second touch electrodes of the touch device 10 132 The patterns in the third interleaved region R3 are different.

Referring to FIGS. 3 and 4 , in particular, in the embodiment of the touch device 10 , the number density of the plurality of first grids 112h of the first touch electrodes 112 in the first interlaced region R1 is substantially equal to that in The number density in the second staggered region R2, and the plurality of first grids 112h of the first touch electrodes 112 in the first staggered region R1 and the second staggered region R2 are the same in size and shape.

Please refer to FIGS. 14 , 15 and 17 . Specifically, in the embodiment of the touch device 10E, the number density of the plurality of first grids 112h of the first touch electrodes 112 on a second staggered region R2 greater than the number density on a first interleaved region R1. In the embodiment of the touch device 10E, the width C1 (shown in FIG. 17 ) of a first grid 112h on a first interlaced region R1 in the first direction d1 is larger than that of a first grid 112h on a second interlaced region R2 The width D1 of the first grid 112h in the first direction d1 (indicated in FIG. 17 ); the width C2 (indicated in FIG. 17 ) of a first grid 112h in a first interleaved region R1 in the second direction d2 is greater than A first grid 112h on a second staggered region R2 has a width D2 in the second direction d2 (marked in FIG. 17 ); an area of a first grid 112h on a first staggered region R1 is greater than a The area of one first grid 112h on the second staggered region R2.

Referring to FIGS. 14 , 16 and 17 , in addition, in the embodiment of the touch device 10E, the number density of the plurality of second grids 132h of the second touch electrodes 132 on a third staggered region R3 is greater than that in the A number density in the first interleaved region R1. In the embodiment of the touch device 10E, the width A1 (marked in FIG. 17 ) of a second grid 132h on a first interlace region R1 in the first direction d1 is larger than that of a second grid 132h on a third interlace region R3 The width B1 of the second grid 132h in the first direction d1 (indicated in FIG. 17 ); the width A2 (indicated in FIG. 17 ) of a second grid 132h on a first staggered region R1 in the second direction d2 is greater than A second grid 132h on a third staggered region R3 has a width B2 in the second direction d2 (marked in FIG. 17 ); an area of a second grid 132h on a first staggered region R1 is greater than a The area of one second grid 132h on the third staggered region R3.

Referring to FIG. 14 , in short, in this embodiment, the places where the first touch electrodes 112 are not intersected with the second touch electrodes 132 (ie, the second intersecting regions R2 ) are metal meshes with high density and No break point; the place where the second touch electrodes 132 do not intersect with the first touch electrodes 112 (ie, the third staggered region R3 ) is a metal mesh with a high density and has no break points. Therefore, the resistance of the first touch electrodes 112 is low, and the resistance of the second touch electrodes 132 is low, which helps to reduce the capacitive-resistive load of the touch device 10C.

In addition, in this embodiment, the places where the first touch electrodes 112 do not intersect with the second touch electrodes 132 (ie, the second intersecting region R2 ) are metal meshes with high density, and the first touch electrodes 112 are located in the The high-density first grids 112h and the second touch electrodes 132 on the second interlaced region R2 also form an edge-induced electric field, and the edge-induced electric field also helps to increase the Cm% of the touch device 10C.

Please refer to Table 3 below, the conductivity value in Table 3 refers to the sum of the resistance values of all the first touch electrodes 112 and all the second touch electrodes 132 in each embodiment, and Cm% in Table 3 = [(Cm- Cm')/Cm]*100%, wherein Cm is the inductive capacitance of the first touch electrode 112 and the second touch electrode 132 when no conductive material (not shown) is provided on the touch surface 10a, and Cm' is the touch The sensing capacitances of the first touch electrodes 112 and the second touch electrodes 132 when a conductive material (not shown) is provided on the control surface 10a.

Table 3 below shows various data of the touch device 10 of the previous embodiment and the touch device 10E of this embodiment. The data in Table 3 proves that in the absence of visual effects such as moiré, Compared with the touch device 10 of the previous embodiment, the resistance of the wires of the touch device 10E of this embodiment is lower, which is helpful to further reduce the resistance and capacitance load of the touch device 10E; The Cm% is greater than the Cm% of the touch device 10 in the foregoing embodiment, which helps to further improve the performance of the touch device 10E related to the Cm% (eg, but not limited to: touch sensitivity, etc.).

[Table 3]

FIG. 18 is a schematic top view of a touch device 10F according to an embodiment of the present invention. The touch device 10F of FIG. 18 is similar to the touch device 10E of FIG. 14 , and the difference is that the second conductive layer 130 of the touch device 10F is different from the second conductive layer 130 of the touch device 10E.

Referring to FIG. 18 , specifically, in this embodiment, the second conductive layer 130 includes the second touch electrodes 132 and the second dummy electrodes 134 , but does not include the second dummy patterns 136 of the touch device 10E. In addition, the number density of the second grids 132h of the second touch electrodes 132 of the touch device 10F in the first interlace region R1 is substantially the same as the number density in the third interlace region R3. In addition, in the first staggered region R1, the second grid 132h of the touch device 10F is not provided with the third branch 132c and the fourth branch 132d of the touch device 10E. Furthermore, in the same first cross region R1, the number density of the plurality of second grids 132h is greater than the number density of the plurality of first grids 112h.

FIG. 19 is a schematic top view of the touch device 10G according to an embodiment of the present invention. The touch device 10G of FIG. 19 is similar to the touch device 10E of FIG. 14 , and the difference is that the first conductive layer 110 of the touch device 10G is different from the first conductive layer 110 of the touch device 10E.

Referring to FIG. 19 , specifically, in this embodiment, the first conductive layer 110 includes the first touch electrodes 112 and the first dummy electrodes 114 , but does not include the first dummy pattern 116 of the touch device 10E. In addition, the number density of the first grids 112h of the first touch electrodes 112 of the touch device 10G in the first interlace region R1 is substantially the same as the number density in the second interlace region R2. In addition, in the first staggered region R1, the first grid 112h of the touch device 10G is not provided with the first branch 112c and the second branch 112d of the touch device 10E.

FIG. 20 is a schematic top view of the touch device 10H according to an embodiment of the present invention. The touch device 10h of FIG. 20 is similar to the touch device 10E of FIG. 14 , and the differences between the two are: the first touch electrodes 112 of the touch device 10H are different from the first touch electrodes 112 of the touch device 10E; The second touch electrodes 132 of the device 10H are different from the second touch electrodes 132 of the touch device 10E.

Referring to FIG. 20 , specifically, in this embodiment, the first touch electrodes 112 of the touch device 10H do not have the first branch 112c and the second branch 112d; the second touch electrodes 132 of the touch device 10H do not have The third branch 132c and the fourth branch 132d.

Claims

A touch device, comprising:

A plurality of first touch electrodes, wherein each first touch electrode includes:

a plurality of first trunks extending in a first direction;

a plurality of second backbones extending in a second direction, wherein the first direction intersects with the second direction, and a plurality of the first backbones intersect a plurality of the second backbones to form a plurality of first meshes grid, and each first grid is defined by two segments of two adjacent first trunks and two segments of two adjacent second trunks;

A plurality of first branches are structurally separated from each other, wherein a plurality of the first branches intersect the two sections of the adjacent two first trunks of at least one first grid of the plurality of first grids ;as well as

A plurality of second branches are separated from each other in structure, wherein a plurality of the second branches intersect the two adjacent two second trunks of the at least one first grid of the plurality of first grids paragraph; and

a plurality of second touch electrodes interlaced with a plurality of the first touch electrodes to define a plurality of first interlace regions;

Wherein, a plurality of the first branches and a plurality of the second branches of the plurality of the first touch electrodes are located at least in the plurality of the first staggered regions.
The touch device of claim 1 , wherein in a top view of the touch device, a plurality of the first branches and a plurality of the second branches and a plurality of the first touch electrodes of each first touch electrode The second touch electrodes are separated.
The touch control device of claim 1, further comprising:

A plurality of first dummy patterns are respectively disposed in a plurality of the first grids and separated from a plurality of the first touch electrodes, wherein each first dummy pattern includes:

a first part aligned with two second branches on a corresponding first grid in the first direction and separated from each other in structure; and

A second portion intersects the first portion, is aligned with the corresponding two first branches on the first grid in the second direction, and is structurally separated from each other.
The touch device of claim 3 , wherein the first portion of each first dummy pattern has a first distance from one of the two second branches on the corresponding first grid, and the The second portion of each first dummy pattern has a second distance from one of the two first branches on the corresponding first grid.
The touch device of claim 1 , wherein a first branch of a first touch electrode comprises a first part and a second part respectively located on opposite sides of a corresponding first trunk, and the first branch The length of the first portion of the first branch is different from the length of the second portion of the first branch.
The touch device of claim 1, wherein each of the second touch electrodes comprises:

a plurality of third trunks extending in the first direction;

A plurality of fourth backbones extend in the second direction, wherein a plurality of the third backbones intersect a plurality of the fourth backbones to form a plurality of second grids, and each second grid is composed of a corresponding Defined by two segments adjacent to two third trunks and two segments adjacent to two fourth trunks;

A plurality of third branches are separated from each other in structure, wherein a plurality of the third branches intersect the two sections of the two adjacent third trunks of at least one second grid of the plurality of second grids ;as well as

A plurality of fourth branches are structurally separated from each other, wherein a plurality of the fourth branches intersect the two sections of the adjacent two fourth trunks of at least one second grid of the plurality of second grids ;

The plurality of the third branches and the plurality of the fourth branches of the plurality of the second touch electrodes are located at least in the plurality of the first staggered regions.
The touch device of claim 6 , wherein in a top view of the touch device, a plurality of the third branches and a plurality of the fourth branches and a plurality of the plurality of the second touch electrodes of the each second touch electrode The first touch electrodes are separated.
The touch control device of claim 6, further comprising:

A plurality of second dummy patterns are respectively disposed in the plurality of the second grids and separated from the plurality of the second touch electrodes, wherein each second dummy pattern includes:

a third part aligned with the two fourth branches on a corresponding second grid in the first direction and separated from each other in structure; and

A fourth part, intersecting the third part, and corresponding to the two third branches on the second grid are arranged in the second direction, and are structurally separated from each other.
The touch device of claim 8 , wherein the third portion of each second dummy pattern has a third distance from one of the two fourth branches on the corresponding second grid, and the The fourth portion of each second dummy pattern has a fourth distance from the corresponding one of the two third branches on the second grid.
The touch control device of claim 6, further comprising:

A plurality of first dummy patterns are respectively disposed in the first grids and separated from the first touch electrodes, wherein each first dummy pattern includes a first part and a second part, the first One part and the two second branches on a corresponding first grid are arranged in the first direction and are structurally separated from each other; and the second part intersects the first part, and the corresponding first part Two first branches on a grid are aligned in the second direction and are structurally separated from each other; and

A plurality of second dummy patterns are respectively disposed in the second grids and separated from the second touch electrodes, wherein each second dummy pattern includes a third part and a fourth part, the first The three parts and the two fourth branches on a corresponding second grid are arranged in the first direction and are structurally separated from each other; and the fourth part intersects the third part, and the corresponding fourth part The two third branches on the two grids are arranged in the second direction and are structurally separated from each other;

Wherein, in the top view of the touch device, a plurality of first trunks of the first touch electrodes, a plurality of first parts of the first dummy patterns, and a plurality of the second touch electrodes A plurality of third trunks and a plurality of third portions of the second dummy patterns are arranged at a pitch, the pitch is P1, and a first portion of a first branch of a first touch electrode is located in a corresponding one On one side of the first trunk, the length of the first part of the first branch is a1, and 0.25·P1≤a1≤0.75·P1.
The touch device of claim 1, wherein each of the second touch electrodes comprises:

a plurality of third trunks extending in the first direction; and

a plurality of fourth backbones extending in the second direction, wherein a plurality of the third backbones intersect a plurality of the fourth backbones to form a plurality of second grids;

In the same first staggered region, the number density of the plurality of second grids is greater than the number density of the plurality of first grids.
A touch device, comprising:

a plurality of first touch electrodes;

a plurality of first dummy electrodes, wherein each first dummy electrode is disposed between two adjacent ones of the plurality of first touch electrodes;

a plurality of second touch electrodes; and

a plurality of second dummy electrodes, wherein each second dummy electrode is disposed between two adjacent ones of the plurality of second touch electrodes;

a plurality of the first touch electrodes are interlaced with a plurality of the second touch electrodes to define a plurality of first interlace regions;

a plurality of the first touch electrodes are interlaced with a plurality of the second dummy electrodes to define a plurality of second interlaced regions;

a plurality of the second touch electrodes are interlaced with a plurality of the first dummy electrodes to define a plurality of third interlaced regions;

Each first touch electrode includes a plurality of first trunks extending in a first direction and a plurality of second trunks extending in a second direction; the first direction and the second direction are interlaced; The first trunk intersects a plurality of the second trunks to form a plurality of first grids; each first grid consists of two sections of two adjacent first trunks and two adjacent two second trunks. defined by the paragraph;

The number density of the plurality of first grids on a second staggered region is greater than that on a first staggered region.
The touch device of claim 12 , wherein a width of one of the plurality of first grids on the first staggered area is greater than that of the plurality of first grids on the second staggered area the width of the other.
The touch device of claim 12, wherein each of the first touch electrodes further comprises:

A plurality of first branches are structurally separated from each other, wherein a plurality of the first branches intersect the two sections of the adjacent two first trunks of at least one first grid of the plurality of first grids ;as well as

A plurality of second branches are separated from each other in structure, wherein a plurality of the second branches intersect the two adjacent two second trunks of the at least one first grid of the plurality of first grids part;

The plurality of first branches and the plurality of second branches of the plurality of first touch electrodes are located in the plurality of first interlaced regions.
The touch device of claim 14 , wherein in a top view of the touch device, a plurality of the first branches and a plurality of the second branches and a plurality of the first branches of each first touch electrode The second touch electrodes are separated.
The touch control device of claim 14, further comprising:

A plurality of first dummy patterns are respectively disposed in a plurality of the first grids and separated from a plurality of the first touch electrodes, wherein each first dummy pattern includes:

a first part aligned with two second branches on a corresponding first grid in the first direction and separated from each other in structure; and

A second portion intersects the first portion, is aligned with the corresponding two first branches on the first grid in the second direction, and is structurally separated from each other.
The touch device of claim 12, wherein each of the second touch electrodes comprises a plurality of third stems extending in the first direction and a plurality of fourth stems extending in the second direction; a plurality of The third trunk intersects a plurality of the fourth trunks to form a plurality of second grids; each second grid consists of two sections of two adjacent third trunks and two adjacent fourth trunks. Defined by two sections; the number density of a plurality of the second grids on a third staggered region is greater than that on a first staggered region.
The touch device of claim 17, wherein each of the second touch electrodes further comprises:

A plurality of third branches are separated from each other in structure, wherein a plurality of the third branches intersect the two sections of the two adjacent third trunks of at least one second grid of the plurality of second grids ;as well as

A plurality of fourth branches are structurally separated from each other, wherein a plurality of the fourth branches intersect the two sections of the adjacent two fourth trunks of at least one second grid of the plurality of second grids ;

The plurality of the third branches and the plurality of the fourth branches of the plurality of the second touch electrodes are located in the plurality of the first staggered regions.
The touch device of claim 18 , wherein in a top view of the touch device, a plurality of the third branches and a plurality of the fourth branches and a plurality of the said each second touch electrode The first touch electrodes are separated.
The touch control device of claim 17, further comprising:

A plurality of second dummy patterns are respectively disposed in the plurality of the second grids and separated from the plurality of the second touch electrodes, wherein each second dummy pattern includes:

a third part aligned with the two fourth branches on a corresponding second grid in the first direction and separated from each other in structure; and

A fourth part, intersecting the third part, and corresponding to the two third branches on the second grid are arranged in the second direction, and are structurally separated from each other.