CN211529131U - Capacitive screen touch film structure, capacitive screen and display device - Google Patents
Capacitive screen touch film structure, capacitive screen and display device Download PDFInfo
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- CN211529131U CN211529131U CN202020332788.7U CN202020332788U CN211529131U CN 211529131 U CN211529131 U CN 211529131U CN 202020332788 U CN202020332788 U CN 202020332788U CN 211529131 U CN211529131 U CN 211529131U
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Abstract
The utility model relates to an electric capacity screen touch-control membrane structure, electric capacity screen and display device, electric capacity screen touch-control membrane structure includes electric capacity diaphragm and flexible circuit board, be provided with many diaphragm passageways on the electric capacity diaphragm, the coating of the end department of being qualified for the next round of competitions of diaphragm passageway is provided with silver thick liquid coating layer, flexible circuit board's pad covers the end of being qualified for the next round of competitions of diaphragm passageway, and be connected with the end electricity of being qualified for the next round of competitions through silver thick liquid coating layer, flexible circuit board extends along the edge of one side of its place electric capacity diaphragm, and there is partial structure to stretch out from the edge of electric capacity diaphragm on its width direction, two arbitrary adjacent be qualified for the next round of competitions and have. The connection mode of silver paste coating is changed into between the wire outlet end of the capacitor diaphragm and the welding disc of the flexible circuit board, and an insulated bonding part is arranged between two adjacent wire outlet ends, and the two wire outlet ends are combined to enable the flexible circuit board to be connected with the capacitor diaphragm more reliably and not easily to loosen.
Description
Technical Field
The utility model relates to a capacitanc touch-control technology field, concretely relates to electric capacity screen touch membrane structure, electric capacity screen and display device.
Background
The intelligent interactive display device has the advantages of high intelligence, interest and the like, and becomes the best choice for more and more enterprises and individuals. At present, the intelligent interactive display equipment in the market is more and more in variety, along with the quick breakthrough development of electric capacity technique for intelligent interactive display equipment's size is littleer and more, and electric capacity touch technology's mutual intelligent product is also more and more, and the intelligent interactive display equipment's of no frame design scheme obtains people more and more favor.
In the prior art, large-sized capacitive diaphragm materials applied to intelligent interactive display equipment include ITO, MM, SNW and the like. Since the capacitor diaphragm is excellent in characteristics such as a process and a material, a capacitor diaphragm using SNW materials is becoming mainstream.
As shown in fig. 1 to 3, a three-edge routing manner is adopted for the existing large-sized SNW capacitive diaphragm 1 ', and in the processing process, after the SNW capacitive diaphragm 1' is laser etched to form a channel 11 ', an end point 12' for connecting with a wire 2 'of a flexible circuit board needs to be reserved on the periphery of the SNW capacitive diaphragm 1'. In order to ensure the electric connection effect, the wire 2 'needs to be matched with the SNW capacitor diaphragm 1' to open the die so as to ensure that the number of channels of the wire 2 'is matched with that of the SNW capacitor diaphragm 1'. When the SNW capacitor diaphragm 1 'is connected with the wire 2', the circuit of the SNW capacitor diaphragm 1 'and the wire 2' are connected in a silver paste dispensing manner in the prior art, so that an electrical characteristic path is ensured.
In the prior art, the silver paste dispensing mode used in the connection process of the SNW capacitive diaphragm 1 'and the wire 2' of the flexible circuit board is easy to cause the phenomenon of loose connection when the flexible circuit board is bent, so that the quality problem of the capacitive screen is caused, and the quality of the capacitive screen with the ultra-narrow edge design is seriously influenced.
SUMMERY OF THE UTILITY MODEL
Based on above-mentioned current situation, the utility model discloses a main aim at provides a capacitive screen touch membrane structure, capacitive screen and display device to solve the above-mentioned problem that current capacitive screen exists.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model discloses a first aspect provides a capacitive screen touch membrane structure, including capacitive diaphragm and flexible circuit board, be provided with many mutual insulation's that distribute along two directions diaphragm passageway on the capacitive diaphragm, the last pad that is provided with of flexible circuit board, the coating of the end department of being qualified for the next round of competitions of diaphragm passageway is provided with silver thick liquid coating layer, the pad covers the end of being qualified for the next round of competitions of diaphragm passageway, and pass through silver thick liquid coating layer with it is connected to be qualified for the next round of competitions the end electricity, flexible circuit board is along its place the edge of one side of capacitive diaphragm extends, flexible circuit board has partial structure to follow on its width direction stretch out at the edge of capacitive diaphragm, has interval region, at least one between two arbitrary adjacent ends of being qualified for the next round of competitions, be used for with flexible.
Preferably, in the width direction of the flexible circuit board, the distance between the pad and the edge of one side of the capacitor diaphragm where the pad is located is 0.5mm-1 mm.
Preferably, the touch film structure further comprises a conductive adhesive layer, wherein the conductive adhesive layer is arranged between the silver paste coating layer and the bonding pad.
Preferably, the conductive adhesive layer is an anisotropic conductive adhesive layer coated on one side of the silver paste coating layer far away from the capacitor diaphragm.
Preferably, the bonding portion is provided in plurality at intervals along an extending direction of the flexible circuit board.
Preferably, the bonding part is an insulating glue bonding layer which is point-coated at the interval area.
Preferably, the material of the capacitor diaphragm is a nano silver capacitor diaphragm.
Preferably, the capacitor diaphragm is of a rectangular structure, the bottom side of the capacitor diaphragm is a receiving side, three groups of receiving units are arranged on the receiving side by side, and each group of receiving units is provided with one flexible circuit board;
the left side and the right side of the capacitor diaphragm are driving sides, each side comprises a group of driving units, and each group of driving units is provided with one flexible circuit board.
A second aspect of the present invention provides an electric capacity screen, including as above the electric capacity screen touch membrane structure.
A third aspect of the present invention provides a display device, including the capacitive screen as described above.
Has the advantages that:
the terminal of being qualified for the next round of competitions of electric capacity diaphragm is connected with flexible circuit board's pad electricity, no longer through the connected mode of silver thick liquid point gluing change into the connected mode of silver thick liquid coating between the two, and set up insulating bonding portion between two adjacent terminals of being qualified for the next round of competitions, the two combines to make flexible circuit board and electric capacity diaphragm be connected more reliably difficult not hard up, when flexible circuit board is buckled from the back of electric capacity diaphragm towards the part that the edge of electric capacity diaphragm stretched out on its width direction, bonding portion can effectively avoid flexible circuit board and electric capacity diaphragm to separate because of buckling, be convenient for realize buckling. Use this electric capacity screen touch membrane structure in this disclosure, can realize the super narrow limit design of electric capacity screen when guaranteeing electric capacity diaphragm and flexible circuit board connection reliability, promote electric capacity screen's outward appearance aesthetic property, user experience is better.
Drawings
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure:
FIG. 1 is a diagram of a connection structure of a capacitive diaphragm in a three-side routing manner in the prior art;
FIG. 2 is a block diagram of the single piece wire used to connect the capacitive diaphragms of FIG. 1;
FIG. 3 is an enlarged view of the dispensing position of the silver paste in FIG. 1;
fig. 4 is a schematic view of a touch film structure of a capacitive screen without a flexible circuit board according to the present invention;
fig. 5 is a schematic diagram of a touch film structure of a capacitive screen connected to a flexible circuit board according to the present invention;
fig. 6 is an enlarged view of the structure at the outlet end of the touch film structure of the middle capacitive screen of the present invention;
fig. 7 is a schematic diagram of the touch control film structure of the capacitive screen of the middle connection flexible circuit board of the present invention.
In the figure:
1', a capacitive diaphragm; 11', a channel; 12', end points;
2', a wire;
1. a capacitive diaphragm; 11. a membrane channel; 12. an outlet end; 13. a receiving side; 131. a receiving unit; 14. a drive side; 141. a drive unit; 15. a spacing region;
2. a flexible circuit board; 21. a pad; 22. an outlet; 23. a protruding portion;
3. silver paste coating layer;
4. a conductive adhesive layer;
5. and an adhesive part.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in order to avoid obscuring the spirit of the present invention, well-known methods, procedures, flows, and components have not been described in detail.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The application provides a capacitive screen touch membrane structure and have capacitive screen of this touch membrane structure, be connected through electric capacity diaphragm and flexible circuit board's electricity in the touch membrane structure, flexible circuit board can buckle, can buckle the part that flexible circuit board stretches out electric capacity diaphragm edge, when guaranteeing the use reliability of electric capacity diaphragm, reduce the space that flexible circuit board occupy, effectively reduce the size of capacitive screen, realize the design of the super narrow limit of capacitive screen, promote the outward appearance aesthetic property of capacitive screen, user experience is better.
The utility model provides a touch-control membrane structure of electric capacity screen, including electric capacity diaphragm and circuit board, wherein, the electric capacity diaphragm can be made by ITO among the prior art, MM material, preferably SNW electric capacity diaphragm, nanometer silver electric capacity diaphragm promptly. The nano-silver capacitor diaphragm adopts a nano-silver technology, and the application of a flexible and oversized touch technology to intelligent interactive display equipment is effectively realized. The circuit board is flexible circuit board, is provided with the pad on the flexible circuit board, and the pad is made by the copper product material, effectively guarantees the electric effect of switching on. The flexible circuit board is a printed circuit board which is made of polyimide or polyester film as a base material and has high reliability and excellent flexibility, and has the characteristics of high wiring density, light weight, thin thickness and good bending property. The flexible circuit board is used, and the reliability of the application of the flexible and oversized touch technology on the intelligent interactive display equipment is further ensured.
As shown in fig. 4 to 7, be a pair of the utility model provides a specific implementation of capacitive screen touch membrane structure, it includes electric capacity diaphragm 1 and flexible circuit board 2, is provided with many mutual insulation's that distribute along two directions diaphragm passageway 11 on the electric capacity diaphragm 1, for example is provided with many vertically and horizontally staggered's mutual insulation's diaphragm passageway 11, every diaphragm passageway 11 all have with flexible circuit board 2 links to each other is qualified for the next round of competitions end 12, and flexible circuit board 2's pad 21 covers diaphragm passageway 11 is qualified for the next round of competitions end 12 and is connected with the end 12 electricity of being qualified for the next round of competitions to guarantee touch membrane structure's electric conduction performance, promote the reliability. The flexible circuit board 2 extends along an edge of a side of the capacitive diaphragm 1 where the flexible circuit board 2 is located, and the flexible circuit board 2 has a partial structure in a width direction thereof protruding from the edge of the capacitive diaphragm 1. As shown in fig. 7, the extending portion 23 of the flexible circuit board 2 extending out of the edge of the capacitive diaphragm 1 can be bent toward the back of the capacitive diaphragm 1, so as to reduce the space occupied by the flexible circuit board at the edge of the capacitive screen, so as to implement the ultra-narrow edge design of the capacitive screen. Specifically, in the width direction of the flexible circuit board 2, the distance between the pad 21 and the edge of one side of the capacitive diaphragm 1 where the pad is located is 0.5mm to 1 mm. To ensure the best design effect of the ultra-narrow edge.
The flexible circuit boards 2 may be bar-shaped structures, as shown in fig. 5, the flexible circuit boards 2 are respectively disposed on the left side, the right side, and the lower side (described in the orientation shown in fig. 5) of the capacitor diaphragm 1, the flexible circuit board 2 located on the left side extends along the left side edge of the capacitor diaphragm 1, the flexible circuit board 2 located on the right side extends along the right side edge of the capacitor diaphragm 1, and the flexible circuit board 2 located on the lower side extends along the lower side edge of the capacitor diaphragm 1. Specifically, the number of the flexible circuit boards 2 disposed on each side edge of the capacitive diaphragm 1 is not limited, and may be one, two, or more, and fig. 5 shows that one flexible circuit board 2 is disposed on the left side edge, one flexible circuit board 2 is disposed on the right side edge, and three flexible circuit boards 2 are disposed on the lower side edge. It should be noted that the strip-shaped structure is not limited to a rectangular structure, and represents that the flexible circuit board 2 has a larger dimension in the length direction (i.e., extending direction) than in the width direction (i.e., direction perpendicular to the length direction), such as the flexible circuit board 2 located on the left side in fig. 5, and has a larger dimension in the up-down direction than in the left-right direction.
Further, as shown in fig. 5 and 6, when realizing that capacitor diaphragm 1 is connected with flexible circuit board 2, the coating of 12 departments of being qualified for the next round of competitions of diaphragm passageway 11 is provided with silver thick liquid coating layer 3, and pad 21 covers the end 12 of being qualified for the next round of competitions of diaphragm passageway 11, and pass through silver thick liquid coating layer 3 with the end 12 electricity of being qualified for the next round of competitions is connected, in order to form the electricity between diaphragm passageway 11 with form the electricity between the outlet 22 of flexible circuit board 2 and be connected to guarantee the power supply and the control to the capacitive screen. The capacitor diaphragm 1 is a nano-silver capacitor diaphragm, the nano-silver technology is formed by stretching and lapping liquid Ag atoms, the thin capacitor diaphragm per se is realized, the number of the Ag atoms is less when the light transmittance is better, if a silver paste dispensing process is adopted, the Ag atoms are easily fractured by directly pressing the Ag atoms at the outlet end 12 with a nano-silver material, the outlet end 12 at the nano-silver position is damaged, the capacitor diaphragm 1 cannot be normally used, the use experience of a user is influenced, the silver paste dispensing process is replaced by a silver paste coating layer 3, the silver paste and the nano-silver are essentially the same substance, the stable contact between the silver paste and the nano-silver is ensured by the attributes of the silver paste and the nano-silver, and the contact is firm, so that the capacitor. The nano silver exists in a strip shape, and is easy to break when being bent, and the silver paste in the silver paste coating layer 3 exists in a granular shape, so that the nano silver is difficult to break compared with the nano silver. Therefore, adopt silver thick liquid coating mode to compare in current some glue the mode more reliable, the bendability is better, and difficult rupture during the bending to the bending of bigger radian can be realized to the electric capacity screen has been guaranteed. The silver paste dispensing process is to lap-joint the gold finger of the flexible circuit board 2 (namely the bonding pad of the flexible circuit board) and the nano-silver of the nano-silver capacitor diaphragm together by using silver paste, so that the coverage can not be realized, and the nano-silver on the SNW capacitor diaphragm is easily exposed in the air and oxidized, so that the use performance of the nano-silver capacitor diaphragm is influenced. The utility model provides a silver thick liquid coating layer 3 directly covers silver thick liquid on nanometer silver through the coating mode, and the silver thick liquid is more stable than nanometer silver chemical property, more is difficult for by the oxidation. In addition, the existing silver paste dispensing process easily causes the existence of salient points at the outlet end 12, and further causes poor flatness of the peripheral edge of the SNW capacitor diaphragm; by adopting a silver paste coating mode, the outlet end 12 is more uniform without salient points, and the full-lamination process is convenient to realize.
Further, the touch-control membrane structure still includes conductive adhesive layer 4, conductive adhesive layer 4 sets up silver thick liquid coating layer 3 with between the pad 21, silver thick liquid coating layer 3 with pad 21 passes through 4 fixed connection of conductive adhesive layer. In a preferred embodiment, the conductive adhesive layer 4 is formed by coating an anisotropic conductive adhesive on a side of the silver paste coating layer 3 away from the capacitive diaphragm 1. Anisotropic conductive adhesive refers to an adhesive that is conductive in the Z direction and non-conductive in the X and Y directions. The material is widely applied to packaging, bonding and the like of various electronic elements and components such as LEDs, high-power LEDs, LED nixie tubes, LCDs, TRs, ICs, COBs, PCBAs, FPCs, FCs, LCDs, EL cold light sheets, display screens, piezoelectric crystals, crystal oscillators, resonators, solar cells, photovoltaic cells, buzzers, semiconductor discrete devices and the like. The method has the advantages of being suitable for superfine spacing, low in curing temperature, simple in interconnection process, high in flexibility, good in thermal expansion coefficient matching, capable of saving packaging procedures, free of lead and other toxic metals and the like.
Further, when the capacitive diaphragm 1 and the flexible circuit board 2 are fixedly connected together by using the capacitive screen touch film structure, the conductive adhesive layer 4 and the silver paste coating layer 3 are pressed on the capacitive diaphragm 1 by the bonding pad 21. Therefore, the utility model provides a touch-control membrane structure only sets up silver thick liquid coating layer 3 through the direct coating mode at the end 12 of being qualified for the next round of competitions of the diaphragm passageway 11 of electric capacity diaphragm 1, and then coating conductive adhesive layer 4 realizes whole crimping process with the pad 21 crimping of flexible circuit board 2 on conductive adhesive layer 4 at last.
Further, as shown in fig. 4, a spacing area 15 is provided between the outlet terminals 12 of any two adjacent membrane channels, at least one spacing area 15 is provided with an insulating bonding portion 5 for bonding connection with the flexible circuit board 2, the bonding portion 5 makes the connection between the flexible circuit board and the capacitor membrane more reliable, in an exemplary embodiment, any two outlet terminals 12 of the plurality of membrane channels 11 of the capacitor membrane 1 are coated with silver paste coating layers 3 (described in detail later), so that the spacing area 15 is located between the silver paste coating layers 3, that is, a plurality of spacing areas 15 are provided along the extending direction of the flexible circuit board 2, at least one spacing area 15 of the plurality of spacing areas 15 is provided with a bonding portion 5 for bonding connection with the flexible circuit board 2, so as to ensure that the flexible circuit board 2 can form a reliable fixed connection with the capacitor membrane 1, the flexible circuit board 2 is prevented from falling off, so that the flexible circuit board can be more firm and is not easy to loosen when being bent, and the bending is convenient to realize. Preferably, the bonding portion 5 is provided in plurality at intervals along the extending direction of the flexible circuit board 2 to form multi-point fixation, thereby improving the fixation reliability and safety. More preferably, a plurality of the bonding portions 5 are uniformly distributed along the extending direction of the flexible circuit board 2 to form uniform connection. Bonding portion 5 for the point scribble in the glue adhesive linkage of interval region 15 department, the glue that forms the glue adhesive linkage use choose for use can be used in the ordinary glue or the insulating double faced adhesive tape in the capacitive screen among the prior art can, when guaranteeing to connect the reliability, reduction in production cost. The outlet ends 12 of the capacitor diaphragm 1 are electrically connected with the bonding pads 21 of the flexible circuit board 2, the connection mode of silver paste coating is not changed into the connection mode of silver paste dispensing, and the insulating bonding part 5 is arranged between the two adjacent outlet ends 12, so that the flexible circuit board 2 and the capacitor diaphragm 1 are more reliably connected and are not easy to loosen,
in a specific embodiment, as shown in fig. 5, the capacitive diaphragm 1 is provided with criss-cross diaphragm channels 11, and the diaphragm channels 11 extend along the transverse direction or the longitudinal direction of the capacitive diaphragm 1. The flexible circuit board 2 extends along the edge of the side where the capacitor diaphragm 1 is located, the bonding pads 21 are arranged at intervals along the extending direction of the flexible circuit board 2, the bonding pads 21 are arranged corresponding to the outlet ends of the diaphragm channels 11, and the bonding pads 21 are connected with the capacitor diaphragm 1 in a compression joint mode. In this embodiment, the capacitive diaphragm is in a rectangular structure, the bottom side of the capacitive diaphragm 1 is a receiving side 13, three groups of receiving units 131, RX1, RX2 and RX3 respectively, are arranged side by side on the receiving side 13, and each group of receiving units 131 is provided with one flexible circuit board 2. The two sides, namely the left side and the right side, of the capacitive diaphragm 1 connected with the bottom side are driving sides 14, each side comprises a group of driving units 141, namely TX1 and TX2, and each group of driving units 141 is provided with a flexible circuit board 2. The receiving side 13 and the driving side 14 both adopt the above-mentioned electrical connection structure to ensure the connection reliability and the use reliability of the touch film.
As shown in fig. 6, after the capacitive diaphragm 1 and the flexible circuit board 2 are connected by using the capacitive screen touch film structure in the present application, the orientation in the figure is taken as a reference, the bottom layer is the wire outlet end 12 of the capacitive diaphragm 1, the silver paste coating layer 3 is arranged above the wire outlet end 12, the conductive adhesive layer 4 is arranged above the silver paste coating layer 3, and the bonding pad 21 of the flexible circuit board 2 is arranged above the conductive adhesive layer 4. Owing to adopted the coating mode to set up silver thick liquid coating layer 3, silver thick liquid coating layer 3 has covered wire outlet end 12, and after flexible circuit board 2 accomplished the electricity with wire outlet end 12 and is connected, wire outlet end 12 and silver thick liquid coating layer 3 do not all expose in the air, consequently, effectively avoid the nanometer silver on capacitive diaphragm 1 to be oxidized with the air contact, in addition, owing to avoided silver thick liquid point gluing mode, when receiving external force and producing the bending, wire outlet end 12 department also is difficult for breaking or the rupture, capacitive diaphragm 1's use reliability has been improved, in addition can also effectively improve capacitive diaphragm 1 all around along the roughness, realize capacitive screen's full laminating technology better.
The application also provides a capacitive screen, which comprises the capacitive screen touch membrane structure. As shown in fig. 5 and 7, the capacitive diaphragm 1 includes a plurality of criss-cross diaphragm channels 11, each diaphragm channel 11 has an outlet end 12 connected to the flexible circuit board 2, and each outlet end 12 is electrically connected to the capacitive screen touch film structure. The flexible circuit board 2 is used for connecting a control circuit, for example, the flexible circuit board 2 on the driving side 14 is connected with a driving chip, and the flexible circuit board 2 on the receiving side 13 is connected with a receiving chip, so as to implement a touch function of the capacitive touch screen. The criss-cross membrane channels 11 on the capacitor membrane 1 are formed by etching. The bonding pad 21 of the flexible circuit board 2 is connected with the capacitor diaphragm 1 through compression joint, so that the installation is convenient, rapid, time-saving and labor-saving, the connection reliability can be ensured, and the electrical performance of the capacitor diaphragm is improved. The flexible circuit board 2 extends along the edge of one side of the capacitor diaphragm 1 where the flexible circuit board is located, the flexible circuit board 2 has a part of structure in the width direction to extend out of the edge of the capacitor diaphragm 1 to form an extending part 23, the extending part 23 bends towards the back of the capacitor diaphragm 1, the extending part 23 no longer occupies the space of the edge of the capacitor diaphragm 1, and the ultra-narrow edge design is realized after the whole capacitor screen is installed.
The application also provides a display device including above-mentioned capacitive screen, and display device is for example interactive display screen, touch-control all-in-one, intelligent electronic blackboard, intelligent whiteboard, the mutual big screen of intelligence or the mutual dull and stereotyped of intelligence, because the capacitive screen has adopted above-mentioned capacitive screen touch membrane structure, has consequently effectively promoted the product quality of the mutual equipment of above-mentioned jumbo size narrow limit intelligence, has promoted market competition.
It will be appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
It will be understood that the above-described embodiments are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions may be made in the details described herein by those skilled in the art without departing from the basic principles of the invention.
Claims (10)
1. The utility model provides a touch-control membrane structure of capacitive screen, its characterized in that, includes capacitive diaphragm (1) and flexible circuit board (2), be provided with many mutual insulation's of following two directions diaphragm passageway (11) on capacitive diaphragm (1), be provided with pad (21) on flexible circuit board (2), the coating of end (12) department of being qualified for the next round of competitions of diaphragm passageway (11) is provided with silver thick liquid coating layer (3), pad (21) cover the end (12) of being qualified for the next round of competitions of diaphragm passageway (11), and pass through silver thick liquid coating layer (3) with the end (12) electricity of being qualified for the next round of competitions is connected, flexible circuit board (2) are followed its place the edge extension of one side of capacitive diaphragm (1), flexible circuit board (2) have partial structure follow on its width direction the edge of capacitive diaphragm (1) stretches out, and any two adjacent ends of being qualified for the next round of competitions have interval region (, at least one of the spacer regions (15) is provided with an insulating adhesive portion (5) for adhesive bonding to the flexible printed circuit board (2).
2. The capacitive screen touch film structure according to claim 1, wherein in the width direction of the flexible circuit board (2), the distance between the pad (21) and the edge of one side of the capacitive diaphragm (1) where the pad is located is 0.5mm-1 mm.
3. The touch film structure of claim 1, further comprising a conductive adhesive layer (4), wherein the conductive adhesive layer (4) is disposed between the silver paste coating layer (3) and the pad (21).
4. The capacitive screen touch film structure according to claim 3, wherein the conductive adhesive layer (4) is an anisotropic conductive adhesive layer coated on one side of the silver paste coating layer (3) away from the capacitive diaphragm (1).
5. The touch film structure of the capacitive screen according to claim 1, wherein the adhesive portion (5) is provided in plurality at intervals along the extending direction of the flexible circuit board (2).
6. The touch film structure of claim 5, wherein the bonding portion (5) is an insulating glue bonding layer spot-coated on the spacing region (15).
7. The touch film structure of any one of claims 1 to 6, wherein the capacitive diaphragm (1) is a nano-silver capacitive diaphragm.
8. The touch film structure of any one of claims 1 to 6, wherein the bottom side of the capacitive diaphragm (1) is a receiving side (13), three groups of receiving units (131) are arranged side by side on the receiving side (13), and each group of receiving units (131) is provided with one flexible circuit board (2);
the left side and the right side of the capacitor diaphragm (1) are both driving sides (14), each side comprises a group of driving units (141), and each group of driving units (141) is provided with one flexible circuit board (2).
9. A capacitive screen, comprising the capacitive screen touch film structure of any one of claims 1 to 8.
10. A display device comprising the capacitive screen of claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020332788.7U CN211529131U (en) | 2020-03-16 | 2020-03-16 | Capacitive screen touch film structure, capacitive screen and display device |
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| CN202020332788.7U CN211529131U (en) | 2020-03-16 | 2020-03-16 | Capacitive screen touch film structure, capacitive screen and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228371A (en) * | 2021-12-20 | 2022-03-25 | 深圳市华科创智技术有限公司 | Nano silver line interconnection wisdom blackboard |
| CN115036717A (en) * | 2022-08-10 | 2022-09-09 | 荣耀终端有限公司 | Electric connection unit, manufacturing method and electronic equipment |
-
2020
- 2020-03-16 CN CN202020332788.7U patent/CN211529131U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228371A (en) * | 2021-12-20 | 2022-03-25 | 深圳市华科创智技术有限公司 | Nano silver line interconnection wisdom blackboard |
| CN115036717A (en) * | 2022-08-10 | 2022-09-09 | 荣耀终端有限公司 | Electric connection unit, manufacturing method and electronic equipment |
| CN115036717B (en) * | 2022-08-10 | 2023-01-10 | 荣耀终端有限公司 | Electric connection unit, manufacturing method and electronic equipment |
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Effective date of registration: 20210113 Address after: 100085 room c1106, 10th floor, block C, No.9, Shangdi 3rd Street, Haidian District, Beijing Patentee after: Beijing Honghe Aixue Education Technology Co.,Ltd. Address before: 518000 No.8, Qinglan 1st Road, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN Hitevision Technology Co.,Ltd. |