CN105183208A - Metal mesh based touch screen capable of sensing touch position and pressure - Google Patents
Metal mesh based touch screen capable of sensing touch position and pressure Download PDFInfo
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- CN105183208A CN105183208A CN201510437212.0A CN201510437212A CN105183208A CN 105183208 A CN105183208 A CN 105183208A CN 201510437212 A CN201510437212 A CN 201510437212A CN 105183208 A CN105183208 A CN 105183208A
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Abstract
The invention discloses a metal mesh based touch screen capable of sensing touch position and pressure. The touch screen comprises: a transparent substrate; a first metal mesh layer, which is a position sensing layer and senses plane position information of touch by measuring capacitance change; a second metal mesh layer, which is a pressure sensing layer and senses vertical pressure information of touch by measuring resistance change; and a signal control apparatus, which is connected with the first metal mesh layer and the second metal mesh layer and is used for receiving electrical signals of the two metal mesh layers and analyzing a plane position and a vertical pressure of the touch action. The metal mesh layers are adopted as the touch position sensing layer and the pressure sensing layer respectively, and the plane position and the vertical pressure of the touch action are sensed by measuring the capacitance change and the resistance change of metal meshes, thereby realizing transformation of a conventional interpersonal interaction form from a two-dimensional mode to a three-dimensional mode.
Description
Technical field
The present invention relates to the technical field of touch-screen, be related specifically to a kind of can the touch-screen of touch sensitive position and pressure based on metal grill.
Background technology
Along with the development and progress of mobile electronic product facility technology, the use of touch-screen seems particularly important.There are many different touch-control sensing technology at present, be mainly capacitive touch screen, it is mainly by identifying the plan position information (by obtaining this point respectively in the capacitance variations of X-direction electrode and Y direction electrode, the position with accurate Calculation touch point) of finger touch.Along with people improve constantly the requirement of touching technique, touch-screen in ideal not only needs can the plan position information of touch sensitive, also need the pressure at right angle (Z-direction) that can sense touch, thus realize traditional interpersonal mutual form and change three dimensional pattern into from two-dimensional model.
In prior art, there is a kind of touching device according to pressure location, as 2007/0229464 of U.S. Patent Application Publication, it uses capacitance pressure transducer, array, and these transparent sensors cover display surface and form touch-screen.But this capacitance pressure transducer, has limited spatial resolution, and complicated structure, make trouble.
Patent 201320285377.7 discloses the touch-screen of a kind of energy touch sensitive position and pressure, mainly adopt in the non-viewfinder area of touch-screen and there is high-sensitive piezoelectric sensing layer, obtain force value corresponding to touch point by piezoelectric sensing layer, realize the high-sensitivity measurement of force value.But piezoelectric sensing layer is arranged on the non-viewing area of capacitive sensor layer surrounding by the method, although the light transmission of viewing area can be ensured, but still the problem of Existential Space limited resolution, precisely can not measure the positional information touching vertical direction.
Patent 201410586807.8 discloses a kind of touch control display device and pressure sensitive touch control method thereof, although the method utilizes increase pressure sensitive unit on the display device of prior art, for detecting the change value of pressure around the change value of pressure of touch-control action position and touch-control action position, stressed degree and the regional location of display screen surface is judged by control module, virtual algorithm is utilized to realize touch-control operating position fixing accurate, but its pressure sensitive unit comprises: matrix unit divides module, zoning unit divides module, pressure detection module, and pressure detection module comprises the pressure transducer that at least one is positioned at described matrix unit center, make structural manufacturing process complicated, cost of manufacture is high, large and the printing opacity rate variance of the touch control display device volume obtained.
Summary of the invention
The object of the present invention is to provide a kind of can the touch-screen of touch sensitive position and pressure based on metal grill, can not only the planimetric position of accurate touch sensitive, and can the pressure at right angle of accurate touch sensitive, structure is simple, volume is frivolous, and does not affect the transmittance of touch-screen.
For this reason, the present invention is by the following technical solutions:
Can the touch-screen of touch sensitive position and pressure based on metal grill, comprising:
Transparency carrier;
First wire netting compartment, described first wire netting compartment is location sensitive layer, by measuring the change of its electric capacity, with the plan position information of touch sensitive;
Second wire netting compartment, described second wire netting compartment is pressure sensitive layer, by measuring the change of its resistance, with the pressure at right angle information of touch sensitive;
Signal control device, described signal control device is connected with the first wire netting compartment and the second wire netting compartment, for receiving the electrical signal of two wire netting compartments, and analyzes planimetric position and the pressure at right angle of touch action.
Preferably, described first wire netting compartment and the second wire netting compartment lay respectively at the two sides of transparency carrier; The one side that described first wire netting compartment is not relative with transparency carrier with the second wire netting compartment is also respectively equipped with protective seam.
Preferably, described transparency carrier is glass, PET, PC, PEN, PP, PS or PMMA, and its thickness is 50 ~ 1000 μm.
Preferably, described first wire netting compartment comprises X-axis grid touch control unit and Y-axis grid touch control unit, and described X-axis grid touch control unit and Y-axis grid touch control unit lay respectively at substrate both sides.
Preferably, described first wire netting compartment comprises X-axis grid touch control unit and Y-axis grid touch control unit, described X-axis grid touch control unit and the arrangement of Y-axis grid touch control unit consecutive intervals, and is electrically insulated each other.
Preferably, the grid material of described X-axis grid touch control unit is at least one in aluminium, molybdenum, copper, nickel and titanium, its grid pattern is rectangle, square, rhombus, hexagon or other polygon, mesh equivalent diameter 20 ~ 60 μm, and the width of mesh lines is 1 ~ 5 μm.
Preferably, the grid material of described Y-axis grid touch control unit is at least one in aluminium, molybdenum, copper, nickel and titanium, its grid pattern is rectangle, square, rhombus, hexagon or other polygon, mesh equivalent diameter 20 ~ 60 μm, and the width of mesh lines is 1 ~ 5 μm.
Preferably, described second wire netting compartment comprises many strip metals lengths, and described metal mesh strip is interconnected, in fringe-like structures.
Preferably, the grid material of described metal mesh strip is at least one in manganese dioxide, nickel, titanium, gallium arsenide, tantalum, chromium, germanium and silicon, mesh equivalent diameter 20 ~ 60 μm, and the width of mesh lines is 1 ~ 5 μm.
The present invention adopts above technical scheme, adopts the first wire netting compartment as location sensitive layer, by measuring the change of its electric capacity, with the plan position information of touch sensitive; Adopt the second wire netting compartment as pressure sensitive layer, by measuring the change of its resistance, with the pressure at right angle information of touch sensitive; Touch-screen of the present invention accurately can measure planimetric position and the pressure at right angle of touch, achieves traditional interpersonal mutual form and changes from two-dimensional model to three dimensional pattern, and structure is simple, and volume is frivolous, and can not affect the transmittance of touch-screen.
Accompanying drawing explanation
Fig. 1 be the present invention is based on metal grill can the high-level schematic functional block diagram of touch-screen of touch sensitive position and pressure.
Fig. 2 be the present invention is based on metal grill can the structural representation of touch-screen embodiment one of touch sensitive position and pressure.
Fig. 3 be the present invention is based on metal grill can the structural representation of touch-screen embodiment two of touch sensitive position and pressure.
Fig. 4 be the present invention is based on metal grill can the floor map of touch-screen second wire netting compartment of touch sensitive position and pressure.
Fig. 5 the present invention is based on metal grill the touch-screen of touch sensitive position and pressure to implement principle schematic.
Embodiment
In order to make object of the present invention, feature and advantage more clear, below in conjunction with drawings and Examples, explanation is specifically made to the specific embodiment of the present invention, in the following description, set forth a lot of concrete details so that understand the present invention fully, but the present invention can implement in other modes being much different from description.Therefore, the present invention is not by the restriction of the concrete enforcement of following discloses.
Embodiment one
Can the touch-screen of touch sensitive position and pressure based on metal grill, as shown in Figure 1, Figure 2, Figure 4 shows, comprising:
Transparency carrier 1;
First wire netting compartment 2, described first wire netting compartment is location sensitive layer, by measuring the change of its electric capacity, with the plan position information of touch sensitive;
Second wire netting compartment 3, described second wire netting compartment is pressure sensitive layer, by measuring the change of its resistance, with the pressure at right angle information of touch sensitive;
Signal control device 4, described signal control device is connected with the first wire netting compartment 2 and the second wire netting compartment 3, for receiving the electrical signal of two wire netting compartments, and analyzes planimetric position and the pressure at right angle of touch action.
Wherein, described first wire netting compartment 2 and the second wire netting compartment 3 lay respectively at the two sides of transparency carrier 1; The one side that described first wire netting compartment 2 is not relative with transparency carrier 1 with the second wire netting compartment 3 is also respectively equipped with protective seam 5; Described first wire netting compartment 2 comprises X-axis grid touch control unit 21 and Y-axis grid touch control unit 22, for measuring the capacitance variations of X-direction electrode and Y direction electrode, accurately to obtain the planimetric position touched, described X-axis grid touch control unit 21 and Y-axis grid touch control unit 22 lay respectively at substrate 20 both sides; Described second wire netting compartment 3 comprises many strip metals lengths 31, and described metal grill 31 band is interconnected, in fringe-like structures.
Wherein, described transparency carrier 1 is glass, PET, PC, PEN, PP, PS or PMMA, and its thickness is 50 ~ 1000 μm.
Wherein, the grid material of described X-axis grid touch control unit 21 is at least one in aluminium, molybdenum, copper, nickel and titanium, its grid pattern is rectangle, square, rhombus, hexagon or other polygon, mesh equivalent diameter 20 ~ 60 μm, and the width of mesh lines is 1 ~ 5 μm.
Wherein, the grid material of described Y-axis grid touch control unit 22 is at least one in aluminium, molybdenum, copper, nickel and titanium, its grid pattern is rectangle, square, rhombus, hexagon or other polygon, mesh equivalent diameter 20 ~ 60 μm, and the width of mesh lines is 1 ~ 5 μm.
Wherein, the grid material of described metal mesh strip 31 is at least one in manganese dioxide, nickel, titanium, gallium arsenide, tantalum, chromium, germanium and silicon, mesh equivalent diameter 20 ~ 60 μm, and the width of mesh lines is 1 ~ 5 μm.
Embodiment two
Can the touch-screen of touch sensitive position and pressure based on metal grill, as shown in Fig. 1, Fig. 3, Fig. 4, comprising:
Transparency carrier 1;
First wire netting compartment 1, described first wire netting compartment 2 is location sensitive layer, by measuring the change of its electric capacity, with the plan position information of touch sensitive;
Second wire netting compartment 3, described second wire netting compartment 3 is pressure sensitive layer, by measuring the change of its resistance, with the pressure at right angle information of touch sensitive;
Signal control device 4, described signal control device 4 is connected with the first wire netting compartment 2 and the second wire netting compartment 3, for receiving the electrical signal of two wire netting compartments, and analyzes planimetric position and the pressure at right angle of touch action.
Wherein, described first wire netting compartment 2 and the second wire netting compartment 3 lay respectively at the two sides of transparency carrier 1; The one side that described first wire netting compartment 2 is not relative with transparency carrier 1 with the second wire netting compartment 3 is also respectively equipped with protective seam 5; Described first wire netting compartment 2 comprises X-axis grid touch control unit 21 and Y-axis grid touch control unit 22, for measuring the capacitance variations of X-direction electrode and Y direction electrode, accurately to obtain the planimetric position touched, described X-axis grid touch control unit 21 and the arrangement of Y-axis grid touch control unit 22 consecutive intervals, and be electrically insulated each other; Described second wire netting compartment 3 comprises many strip metals lengths, and described metal mesh strip is interconnected, in fringe-like structures.
Wherein, described transparency carrier 1 is glass, PET, PC, PEN, PP, PS or PMMA, and its thickness is 50 ~ 1000 μm.
Wherein, the grid material of described X-axis grid touch control unit 21 is at least one in aluminium, molybdenum, copper, nickel and titanium, its grid pattern is rectangle, square, rhombus, hexagon or other polygon, mesh equivalent diameter 20 ~ 60 μm, and the width of mesh lines is 1 ~ 5 μm.
Wherein, the grid material of described Y-axis grid touch control unit 22 is at least one in aluminium, molybdenum, copper, nickel and titanium, its grid pattern is rectangle, square, rhombus, hexagon or other polygon, mesh equivalent diameter 20 ~ 60 μm, and the width of mesh lines is 1 ~ 5 μm.
Wherein, the grid material of described metal mesh strip 31 is at least one in manganese dioxide, nickel, titanium, gallium arsenide, tantalum, chromium, germanium and silicon, mesh equivalent diameter 20 ~ 60 μm, and the width of mesh lines is 1 ~ 5 μm.
The present invention is based on metal grill can the touch-screen of touch sensitive position and pressure adopt the first wire netting compartment as location sensitive layer, by measuring its capacitance variations, with the plan position information of touch sensitive; Adopt the second wire netting compartment as pressure sensitive layer, by measuring its resistance variations, with the pressure at right angle information of touch sensitive; Received the electrical signal of wire netting compartment by signal control device, analyze with this planimetric position and pressure at right angle that draw touch action.It implements principle as shown in Figure 5, and when coming into effect touch, the first wire netting compartment i.e. (location sensitive layer) can produce capacitance variations, and signal control device receives the electrical signal of this capacitance variations, by Accurate Analysis, draws the planimetric position of touch; Meanwhile, the second wire netting compartment (pressure sensitive layer) by can resistance variations be produced, signal control device receive this resistance variations electrical signal, by Accurate Analysis, draw the pressure at right angle of touch.Therefore, the present invention is based on metal grill and the touch-screen of touch sensitive position and pressure can accurately can measure planimetric position and the pressure at right angle of touch, achieve traditional interpersonal mutual form to change from two-dimensional model to three dimensional pattern, structure is simple, volume is frivolous, and can not have influence on the transmittance of touch-screen.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. can the touch-screen of touch sensitive position and pressure based on metal grill, it is characterized in that, comprising:
Transparency carrier;
First wire netting compartment, described first wire netting compartment is location sensitive layer, by measuring the change of its electric capacity, with the plan position information of touch sensitive;
Second wire netting compartment, described second wire netting compartment is pressure sensitive layer, by measuring the change of its resistance, with the pressure at right angle information of touch sensitive;
Signal control device, described signal control device is connected with the first wire netting compartment and the second wire netting compartment, for receiving the electrical signal of two wire netting compartments, and analyzes planimetric position and the pressure at right angle of touch action.
2. according to claim 1 a kind of can the touch-screen of touch sensitive position and pressure based on metal grill, it is characterized in that, described first wire netting compartment and the second wire netting compartment lay respectively at the two sides of transparency carrier; The one side that described first wire netting compartment is not relative with transparency carrier with the second wire netting compartment is also respectively equipped with protective seam.
3. a kind of touch-screen can giving touch sensitive position and pressure based on metal grill according to claims 1 or 2, it is characterized in that, described transparency carrier is glass, PET, PC, PEN, PP, PS or PMMA, and its thickness is 50 ~ 1000 μm.
4. according to claim 1 a kind of can the touch-screen of touch sensitive position and pressure based on metal grill, it is characterized in that, described first wire netting compartment comprises X-axis grid touch control unit and Y-axis grid touch control unit, and described X-axis grid touch control unit and Y-axis grid touch control unit lay respectively at substrate both sides.
5. according to claim 1 a kind of can the touch-screen of touch sensitive position and pressure based on metal grill, it is characterized in that, described first wire netting compartment comprises X-axis grid touch control unit and Y-axis grid touch control unit, described X-axis grid touch control unit and the arrangement of Y-axis grid touch control unit consecutive intervals, and be electrically insulated each other.
6. a kind of according to claim 4 or 5 can the touch-screen of touch sensitive position and pressure based on metal grill, it is characterized in that, the grid material of described X-axis grid touch control unit is at least one in aluminium, molybdenum, copper, nickel and titanium, its grid pattern is rectangle, square, rhombus, hexagon or other polygon, mesh equivalent diameter 20 ~ 60 μm, the width of mesh lines is 1 ~ 5 μm.
7. a kind of according to claim 4 or 5 can the touch-screen of touch sensitive position and pressure based on metal grill, it is characterized in that, the grid material of described Y-axis grid touch control unit is at least one in aluminium, molybdenum, copper, nickel and titanium, its grid pattern is rectangle, square, rhombus, hexagon or other polygon, mesh equivalent diameter 20 ~ 60 μm, the width of mesh lines is 1 ~ 5 μm.
8. according to claim 1 a kind of can the touch-screen of touch sensitive position and pressure based on metal grill, it is characterized in that, described second wire netting compartment comprises many strip metals lengths, and described metal mesh strip is interconnected, in fringe-like structures.
9. according to claim 8 a kind of can the touch-screen of touch sensitive position and pressure based on metal grill, it is characterized in that, the grid material of described metal mesh strip is at least one in manganese dioxide, nickel, titanium, gallium arsenide, tantalum, chromium, germanium and silicon, mesh equivalent diameter 20 ~ 60 μm, the width of mesh lines is 1 ~ 5 μm.
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| CN201510437212.0A CN105183208A (en) | 2015-07-23 | 2015-07-23 | Metal mesh based touch screen capable of sensing touch position and pressure |
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| CN201510437212.0A CN105183208A (en) | 2015-07-23 | 2015-07-23 | Metal mesh based touch screen capable of sensing touch position and pressure |
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| CN106095193A (en) * | 2016-08-01 | 2016-11-09 | 江苏日久光电股份有限公司 | There is the piezoelectric film sensor of more Low ESR surface electrode layer |
| CN106354328A (en) * | 2016-09-14 | 2017-01-25 | 宸鸿科技(厦门)有限公司 | Pressure sensing module and pressure touch sensing system |
| CN107045397A (en) * | 2016-02-05 | 2017-08-15 | 群创光电股份有限公司 | Pressure sensor device and its manufacture method |
| CN107045399A (en) * | 2016-02-06 | 2017-08-15 | 宸鸿科技(厦门)有限公司 | Contact panel and preparation method thereof |
| CN108595055A (en) * | 2018-05-10 | 2018-09-28 | 京东方科技集团股份有限公司 | Three-dimensional force identification sensor, its driving method and display device |
| CN108803953A (en) * | 2018-06-08 | 2018-11-13 | 芜湖长信科技股份有限公司 | A kind of capacitive touch screen |
| CN109426391A (en) * | 2017-09-05 | 2019-03-05 | 乐金显示有限公司 | Touch sensor, display device and the method for driving touch sensor |
| CN109917975A (en) * | 2019-03-07 | 2019-06-21 | 信利光电股份有限公司 | Red touch module of one and preparation method thereof and touch control display apparatus |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107045397A (en) * | 2016-02-05 | 2017-08-15 | 群创光电股份有限公司 | Pressure sensor device and its manufacture method |
| CN107045399A (en) * | 2016-02-06 | 2017-08-15 | 宸鸿科技(厦门)有限公司 | Contact panel and preparation method thereof |
| CN107045399B (en) * | 2016-02-06 | 2023-08-08 | 宸鸿科技(厦门)有限公司 | Touch panel and manufacturing method thereof |
| CN105784254A (en) * | 2016-04-20 | 2016-07-20 | 南方科技大学 | Flexible pressure sensor and touch screen |
| CN106095193A (en) * | 2016-08-01 | 2016-11-09 | 江苏日久光电股份有限公司 | There is the piezoelectric film sensor of more Low ESR surface electrode layer |
| CN106354328A (en) * | 2016-09-14 | 2017-01-25 | 宸鸿科技(厦门)有限公司 | Pressure sensing module and pressure touch sensing system |
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| CN109426391A (en) * | 2017-09-05 | 2019-03-05 | 乐金显示有限公司 | Touch sensor, display device and the method for driving touch sensor |
| CN109426391B (en) * | 2017-09-05 | 2022-03-11 | 乐金显示有限公司 | Touch sensor, display device, and method of driving touch sensor |
| CN108595055B (en) * | 2018-05-10 | 2020-05-05 | 京东方科技集团股份有限公司 | Three-dimensional force recognition sensor, driving method thereof and display device |
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| CN108595055A (en) * | 2018-05-10 | 2018-09-28 | 京东方科技集团股份有限公司 | Three-dimensional force identification sensor, its driving method and display device |
| CN108803953A (en) * | 2018-06-08 | 2018-11-13 | 芜湖长信科技股份有限公司 | A kind of capacitive touch screen |
| CN109917975A (en) * | 2019-03-07 | 2019-06-21 | 信利光电股份有限公司 | Red touch module of one and preparation method thereof and touch control display apparatus |
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