CN108595062B - Touch sensing module - Google Patents
Touch sensing module Download PDFInfo
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- CN108595062B CN108595062B CN201810414576.0A CN201810414576A CN108595062B CN 108595062 B CN108595062 B CN 108595062B CN 201810414576 A CN201810414576 A CN 201810414576A CN 108595062 B CN108595062 B CN 108595062B
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- touch
- boundary line
- channel
- electrode layer
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
Abstract
A touch sensing module, comprising: a first touch electrode layer, the first touch electrode layer comprising: the touch control device comprises a plurality of first touch control channels which are insulated from each other, wherein each first touch control channel is formed by a metal grid, and each metal grid is formed by a plurality of metal wires in a staggered mode; at least one first boundary line made of conductive material, wherein each first boundary line is arranged along the extending direction of one first touch channel and is electrically connected with the first touch channel, and the vertex of the metal mesh of the first touch channel, which is close to one side of the first boundary line, is positioned on the first boundary line; and a plurality of auxiliary lines, including a first end and a second end far away from the first end, wherein the first end of each auxiliary line is electrically connected with a first boundary line, and the second end is electrically connected with a metal grid adjacent to the first end.
Description
Technical Field
The present invention relates to a touch sensing module, and more particularly, to a touch sensing module using a Metal Mesh (Metal Mesh).
Background
Touch sensing is widely applied to various electronic devices such as mobile phones and IPADs as a simple man-machine interaction method, and particularly, capacitive touch sensing is used in which a layer of metal conductive material is attached to the upper and lower surfaces of an insulating material, respectively. At present, the Metal conductive substance on the insulating material mostly adopts a Metal grid, the Metal grid is composed of a plurality of Metal grid blocks arranged at intervals, each Metal grid block is composed of a plurality of Metal wires, and the Metal grid (Metal Mesh) technology is favored due to low cost and good conductive performance.
Fig. 6 is a partially enlarged schematic view of the touch sensing module 6. The touch sensing module 6 includes a plurality of main touch channels 622 disposed in the display area AA and edge touch channels 621 disposed at the edge of the display area AA near the non-display area NA, wherein the edge touch channels 621 are formed by repeatedly arranging a single metal grid along the extending direction of the edge touch channels 621, and correspondingly, only one metal connection point 620 exists in any area perpendicular to the extending direction of the edge touch channels 62. It can be understood that one metal connection point 620 is formed by two intersecting metal lines, and when one of the metal lines is disconnected, only one metal line is left, so that the whole edge touch channel cannot work normally.
Disclosure of Invention
A touch sensing module, comprising: a first touch electrode layer, the first touch electrode layer comprising: the touch control device comprises a plurality of first touch control channels which are insulated from each other, wherein each first touch control channel is formed by a metal grid, and each metal grid is formed by a plurality of metal wires in a staggered mode; at least one first boundary line made of conductive material, wherein each first boundary line is arranged along the extending direction of one first touch channel and is electrically connected with the first touch channel, and the vertex of the metal mesh of the first touch channel, which is close to one side of the first boundary line, is positioned on the first boundary line; and a plurality of auxiliary lines, including a first end and a second end far away from the first end, wherein the first end of each auxiliary line is electrically connected with a first boundary line, and the second end is electrically connected with a metal grid adjacent to the first end.
Compared with the traditional touch sensing module, the touch sensing module provided by the invention has lower probability of signal short circuit and is more durable.
Drawings
Fig. 1 is a schematic cross-sectional view of a touch sensing module according to the present invention.
Fig. 2 is a schematic plan view of a first touch electrode layer of the touch sensing module according to the present invention.
Fig. 3 is a partially enlarged schematic view of the first touch electrode layer of fig. 2.
Fig. 4 is a schematic plan view of a second touch electrode layer of the touch sensing module according to the present invention.
Fig. 5 is a partially enlarged schematic view of the second touch electrode layer of fig. 4.
Fig. 6 is a partially enlarged schematic view of a touch sensing module with a conventional structure.
Description of the main elements
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
While the embodiments of the invention are illustrated in the drawings, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size of layers and regions may be exaggerated for clarity.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, and/or components.
Embodiments of the present invention are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate constructions) of the present invention. Thus, variations in the shapes of the illustrations as a result of manufacturing processes and/or tolerances are to be expected. Thus, embodiments of the invention should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. The regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of the device and are not intended to limit the scope of the invention.
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 interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic cross-sectional view of a touch sensing module according to the present invention. The touch sensing module 1 of the present invention includes an insulating substrate 11, and a first touch electrode layer 12 and a second touch electrode layer 13 disposed on two opposite sides of the substrate 11, wherein the second touch electrode layer 13 and the first touch electrode layer 12 are disposed at an interval in an insulating manner.
The substrate 11 may be a flexible material or a non-flexible material, in this embodiment, the substrate 11 is a flexible material having flexibility, so that the touch sensing module 1 may be suitable for a curved display device or a flexible display device. In one embodiment, the substrate 11 may be made of an organic material, such as Polyimide (PI), Polyethylene naphthalate (PEN), or Polyethylene terephthalate (PET). In one embodiment, the substrate 11 may be a non-flexible material with certain rigidity, and the substrate 11 may be silicon dioxide (SiO)2) Or Polycarbonate (PC).
A display area AA and a non-display area NA are defined on a surface of the first substrate 11, the display area AA is located in the central area, and the non-display area NA surrounds the display area AA. The first touch electrode layer 12 and the second touch electrode layer 13 are disposed corresponding to the display area AA, a user operates in an area corresponding to the display area AA, and the first touch electrode layer 12 and the second touch electrode layer 13 cooperate with each other to form a mutual capacitance type touch sensing structure for sensing a touch operation of the user.
Referring to fig. 2 and fig. 3 together, fig. 2 is a schematic plan view of the first touch electrode layer 12 of the touch sensing module 1 according to the present invention, and fig. 3 is a partially enlarged schematic view of the first touch electrode layer 12 of fig. 2. The first touch electrode layer 12 includes a plurality of mutually insulated first touch channels 120 and at least one first boundary line 125. Each of the first touch channels 120 is formed of a Metal Mesh (Metal Mesh), and each of the Metal meshes is formed by intersecting a plurality of Metal lines in pairs. The first boundary lines 125 are made of a conductive material, each of the first boundary lines 125 is disposed along an extending direction of one of the first touch channels 120 and electrically connected to the first touch channel 120, and a vertex of the metal mesh of the first touch channel 120 near one side of the first boundary line 125 is located on the first boundary line 125.
The first touch channel 120 includes a plurality of first main touch channels 122 located in the display area AA and at least one first edge touch channel 121 located at an edge of the display area AA and close to the non-display area NA, and the first main touch channels 122 and the first edge touch channels 121 are arranged in parallel and spaced from each other along the first direction X.
Referring to fig. 3, the first touch electrode layer 12 includes a plurality of metal grids formed by intersecting a plurality of metal lines, and a connection point connecting any two adjacent metal grids defines a first connection point 128.
The first touch channel 120 further includes at least one first main touch channel 122 and at least one second boundary line 124, and each second boundary line 124 is electrically connected to one first main touch channel 122 or one first edge touch channel 121.
In one embodiment, the first touch channels 120 include a plurality of first main touch channels 122 located in the display area AA, and at least one first edge touch channel 121 located at an edge of the display area AA and close to the non-display area NA; in other embodiments, the number of the first edge touch channels 121 may be two or more than two. In one embodiment, each of the first main touch channels 122 has a second boundary line 124 disposed along both sides of the extending direction (the first direction X), and the second boundary line 124 is electrically connected to the first main touch channel 122; in other embodiments, a second boundary line 124 is disposed on one of two sides of each first main touch channel 122 along the extending direction thereof, or the second boundary line 124 is not disposed on two sides of each first main touch channel 122 along the extending direction thereof, or at least a portion of each first main touch channel 122 is electrically connected to the first boundary line 125. In one embodiment, each of the first edge touch channels 121 has a first boundary line 125 and a second boundary line 124 along two sides of the extending direction thereof, and in other embodiments, each of the first edge touch channels 121 has two first boundary lines 125 along two sides of the extending direction thereof. In one embodiment, the vertex of the metal mesh on the side of the first edge touch channel 121 close to the first boundary line 125 is located on the first boundary line 125, and there is only one first connection point 128 in the first edge touch channel 121 along a direction perpendicular to the extending direction (the second direction Y perpendicular to the first direction X).
The first touch electrode layer 12 further includes a plurality of auxiliary lines 123, each of the auxiliary lines 123 includes a first end and a second end far away from the first end, the first end of each of the auxiliary lines 123 is electrically connected to a first boundary line 125, the second end is electrically connected to a metal grid adjacent to the first end, and the first boundary line 125 and the auxiliary line 123 are thicker than the second boundary line 124. In one embodiment, the auxiliary lines 123 are disposed in the first edge touch channel 121, a first end of each auxiliary line 123 is electrically connected to a first boundary line 125, a second end is electrically connected to a metal grid adjacent to the first end, specifically, the second end is connected to a metal line, and the connection point is a second connection point 126. And, two metal lines respectively connected to the second ends of any adjacent two auxiliary lines 123 do not intersect, and a second connection point 126 is further present on one of the two metal lines intersecting each first connection point 128.
In one embodiment, the first touch electrode layer 12 may be a metal, such as at least one of aluminum (Al), silver (Ag), gold (Au), cobalt (Co), chromium (Cr), copper (Cu), indium (In), manganese (Mn), molybdenum (Mo), nickel (Ni), neodymium (Nd), (pd) palladium, platinum (Pt), titanium (Ti), tungsten (W), and zinc (Zn), but not limited thereto, In the present embodiment, the first touch electrode layer 12 is copper.
Referring to fig. 4, fig. 4 is a schematic plan view of a second touch electrode layer 13 of the touch sensing module of the present invention. The second touch electrode layer 13 includes a plurality of second touch channels 130 insulated from each other, and an extending direction of the second touch channels 130 is perpendicular to an extending direction of the first touch channels 120.
The second touch electrode layer 13 includes a plurality of mutually insulated second touch channels 130 and at least one third boundary line 135. Each of the second touch channels 130 is formed by a Metal Mesh (Metal Mesh), and each of the Metal meshes is formed by intersecting a plurality of Metal lines. The third boundary lines 135 are made of a conductive material, each third boundary line 135 is disposed along an extending direction of one of the second touch channels 130 and electrically connected to the second touch channel 130, and the vertex of the metal mesh of the second touch channel 130 near one side of the third boundary line 135 is located on the third boundary line 135.
The second touch channel 130 includes a plurality of second main touch channels 132 located in the display area AA and at least one second edge touch channel 131 located at an edge of the display area AA and close to the non-display area NA, and the second main touch channels 132 and the second edge touch channels 131 are arranged in parallel at intervals along the second direction Y.
Referring to fig. 5, fig. 5 is a partially enlarged schematic view of the second touch electrode layer 13 of fig. 4, where the second touch electrode layer 13 includes a plurality of metal grids formed by intersecting a plurality of metal wires, and a connection point of any two adjacent metal grids is a first connection point 128.
The second touch channel 130 further includes at least one second main touch channel 132 and at least one fourth boundary line 134, and each fourth boundary line 134 is electrically connected to one second main touch channel 132 or one second edge touch channel 131.
In one embodiment, the second touch channel 130 includes a plurality of second main touch channels 132 located in the display area AA, and at least one second edge touch channel 131 located at the edge of the display area AA and close to the non-display area NA; in other embodiments, the number of the second edge touch channels 131 may be two or more than two. In one embodiment, each of the second main touch channels 132 has a fourth boundary line 134 respectively disposed along two sides of the extending direction (the second direction Y), and the fourth boundary line 134 is electrically connected to the second main touch channel 132; in other embodiments, a fourth boundary line 134 is disposed along one of two sides of each second main touch channel 132 along the extending direction, or the fourth boundary line 134 is not disposed along two sides of each second main touch channel 132 along the extending direction, or at least a portion of each second main touch channel 132 is electrically connected to the third boundary line 135. In one embodiment, each of the second edge touch channels 131 has a third boundary line 135 and a fourth boundary line 134 along two sides of the extending direction thereof, and in other embodiments, each of the second edge touch channels 131 has two third boundary lines 135 along two sides of the extending direction thereof. In one embodiment, the vertex of the metal mesh on the side of the second edge touch channel 131 close to the third boundary line 135 is located on the third boundary line 135, and there is only one first connection point 128 in the second edge touch channel 131 along the direction perpendicular to the extending direction (the first direction X perpendicular to the second direction Y).
The second touch electrode layer 13 further includes a plurality of auxiliary lines 123, each of the auxiliary lines 123 includes a first end and a second end far away from the first end, the first end of each of the auxiliary lines 123 is electrically connected to a third boundary line 135, the second end is electrically connected to a metal mesh adjacent to the first end, and the third boundary line 135 and the auxiliary line 123 are thicker than the fourth boundary line 134. In one embodiment, the auxiliary lines 123 are disposed in the second edge touch channel 131, a first end of each auxiliary line 123 is electrically connected to a third boundary line 135, a second end is electrically connected to a metal mesh adjacent to the first end, specifically, the second end is connected to a metal line, and the connection point is the second connection point 126. And, two metal lines respectively connected to the second ends of any adjacent two auxiliary lines 123 do not intersect, and a second connection point 126 is further present on one of the two metal lines intersecting each first connection point 128.
The second touch electrode layer 13 may be a metal, such as at least one of aluminum (Al), silver (Ag), gold (Au), cobalt (Co), chromium (Cr), copper (Cu), indium (In), manganese (Mn), molybdenum (Mo), nickel (Ni), neodymium (Nd), (pd) palladium, platinum (Pt), titanium (Ti), tungsten (W), and zinc (Zn), but is not limited thereto, and In the embodiment, the second touch electrode layer 13 is copper.
The auxiliary line 123 may be a straight line, a curved line, or an irregular line.
The touch sensing module further comprises an optical adhesive 15, and the optical adhesive 15 covers the first touch electrode layer 12 and the second touch electrode layer 13 which are oppositely arranged.
Hereinbefore, specific embodiments of the present invention are described with reference to the drawings. However, those skilled in the art will appreciate that various modifications and substitutions can be made to the specific embodiments of the present invention without departing from the spirit and scope of the invention. Such modifications and substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (8)
1. A touch sensing module, comprising:
a first touch electrode layer, the first touch electrode layer comprising:
the touch control device comprises a plurality of first touch control channels which are insulated from each other, wherein each first touch control channel is formed by metal grids, and each metal grid is formed by intersecting a plurality of metal wires in pairs;
at least one first boundary line made of conductive material, wherein each first boundary line is arranged along the extending direction of one first touch channel and is electrically connected with the first touch channel, and the vertex of the metal mesh of the first touch channel, which is close to one side of the first boundary line, is positioned on the first boundary line; the auxiliary lines comprise first ends and second ends far away from the first ends, the first end of each auxiliary line is electrically connected with a first boundary line, and the second end of each auxiliary line is electrically connected with one metal grid adjacent to the first end;
the first touch channel comprises at least one first edge touch channel positioned at the edge of the first touch electrode layer, each first boundary line is positioned on one side of one first edge touch channel and is electrically connected with the first edge touch channel, the first touch channel further comprises at least one first main touch channel and at least one second boundary line, two metal lines respectively connected with the second ends of any two adjacent auxiliary lines do not intersect, and the first boundary line and the auxiliary lines are thicker than the second boundary line.
2. The touch sensing module of claim 1, wherein: each second boundary line is electrically connected with one first main touch channel or one first edge touch channel.
3. The touch sensing module of claim 1, wherein:
along the extending direction of the first edge touch control channel, a connecting point connected with any two adjacent metal grids is defined as a first connecting point; the first edge touch channel is provided with only one first connecting point along the direction vertical to the extending direction of the first edge touch channel.
4. The touch sensing module of claim 1, wherein:
the touch sensing module further comprises a second touch electrode layer, the second touch electrode layer and the first touch electrode layer are arranged at an insulating interval, and the second touch electrode layer comprises:
the extending direction of the second touch channels is vertical to that of the first touch channels, each second touch channel is composed of metal grids, and each metal grid is formed by staggering a plurality of metal wires;
at least one first boundary line made of conductive material, wherein each first boundary line is arranged along the extending direction of one second touch channel and is electrically connected with the second touch channel, and the vertex of the metal mesh of the second touch channel close to one side of the first boundary line is positioned on the first boundary line; and
the auxiliary lines comprise first ends and second ends far away from the first ends, the first end of each auxiliary line is electrically connected with a first boundary line, and the second ends are electrically connected with one metal grid adjacent to the first ends.
5. The touch sensing module of claim 4, wherein: the second touch electrode layer comprises a plurality of second touch channels which are insulated from each other and at least one third boundary line, the second touch channels are located at the edges of the second touch electrode layer, and each third boundary line is located on one side of one second edge touch channel and is electrically connected with the second edge touch channel.
6. The touch sensing module of claim 5, wherein:
the second touch electrode layer further comprises at least one second main touch channel and at least one fourth boundary line;
each fourth boundary line is electrically connected with one second main touch channel or one second edge touch channel;
the third boundary line and the auxiliary line are thicker than the fourth boundary line.
7. The touch sensing module of claim 5, wherein:
and along the extending direction of the second edge touch channel, the second edge touch channel is only provided with one first connecting point along the direction vertical to the extending direction of the second edge touch channel.
8. The touch sensing module of claim 4, wherein: two metal wires respectively connected with the second ends of any two adjacent auxiliary wires do not intersect.
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CN201810414576.0A CN108595062B (en) | 2018-05-03 | 2018-05-03 | Touch sensing module |
TW107121612A TWI668613B (en) | 2018-05-03 | 2018-06-22 | Touch sensing module |
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CN201810414576.0A CN108595062B (en) | 2018-05-03 | 2018-05-03 | Touch sensing module |
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CN108595062B true CN108595062B (en) | 2021-08-03 |
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CN111427468A (en) * | 2019-11-26 | 2020-07-17 | 重庆莱宝科技有限公司 | Metal grid structure, touch screen and touch display screen |
CN111399708A (en) * | 2020-04-07 | 2020-07-10 | 惠州易晖光电材料股份有限公司 | Electrode wiring structure of touch functional sheet and preparation method thereof |
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CN204302941U (en) * | 2014-12-03 | 2015-04-29 | 京东方科技集团股份有限公司 | A kind of touch base plate, contact panel and display unit |
CN206348768U (en) * | 2016-12-04 | 2017-07-21 | 深圳莱宝高科技股份有限公司 | Metal grill contact panel |
JP2017162234A (en) * | 2016-03-10 | 2017-09-14 | パナソニック液晶ディスプレイ株式会社 | Touch panel and display device |
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US9720551B2 (en) * | 2014-07-30 | 2017-08-01 | Lg Innotek Co., Ltd. | Touch window |
TWI574187B (en) * | 2014-11-13 | 2017-03-11 | 財團法人工業技術研究院 | Conductive line structure and sensing device using the same |
US9898147B2 (en) * | 2014-12-12 | 2018-02-20 | Microsoft Technology Licensing, Llc | Mesh electrode matrix having finite repeat length |
KR102286210B1 (en) * | 2015-05-04 | 2021-08-05 | 엘지이노텍 주식회사 | Touch panel |
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- 2018-06-22 TW TW107121612A patent/TWI668613B/en active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN204302941U (en) * | 2014-12-03 | 2015-04-29 | 京东方科技集团股份有限公司 | A kind of touch base plate, contact panel and display unit |
JP2017162234A (en) * | 2016-03-10 | 2017-09-14 | パナソニック液晶ディスプレイ株式会社 | Touch panel and display device |
CN206348768U (en) * | 2016-12-04 | 2017-07-21 | 深圳莱宝高科技股份有限公司 | Metal grill contact panel |
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TWI668613B (en) | 2019-08-11 |
CN108595062A (en) | 2018-09-28 |
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