CN107390937B - Opening structure of GFF touch screen - Google Patents
Opening structure of GFF touch screen Download PDFInfo
- Publication number
- CN107390937B CN107390937B CN201710646820.1A CN201710646820A CN107390937B CN 107390937 B CN107390937 B CN 107390937B CN 201710646820 A CN201710646820 A CN 201710646820A CN 107390937 B CN107390937 B CN 107390937B
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- fpc
- opening
- film
- touch screen
- pad
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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
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- 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
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Buffer Packaging (AREA)
Abstract
The invention relates to an opening structure of a GFF touch screen. The opening structure of GFF touch screen includes FPC welding pad and stacks gradually first film, first viscose layer, second film and the second viscose layer that sets up, be formed with the installation breach in order to expose on the second viscose layer the second film, FPC set up in on the second film and be located in the installation breach, first film first viscose layer the second film reaches the second viscose layer still link up in one side and is formed with the final opening district of FPC, the bottom of installation breach has still been seted up and has been arranged the bubble opening, it is located to arrange the bubble opening FPC welding pad with between the final opening district of FPC, it has a perfect understanding to arrange the bubble opening second film and first viscose layer. The opening structure of the GFF touch screen enables adjacent layers to be not prone to air bubbles.
Description
Technical Field
The invention relates to an opening structure of a GFF touch screen.
Background
GFF touch screen generally includes first film, first viscose layer, second film, second viscose layer and glass screen, the second film passes through first viscose layer paste in on the first film, the glass screen passes through the second viscose layer paste in on the second film. For example, one side of the second adhesive layer may be provided with a solder pad, and the solder pad is located on the second film and used for attaching an FPC. The first film is provided with an opening so as to smoothly attach the FPC. In the laminating operation of the GFF touch screen, the structure needs to be pressed by using a roller, however, in the pressing process, because the opening is too far away from the side edges of the second film and the second adhesive layer, gas between adjacent layers is not easy to discharge, and bubbles are easily generated between the first film and the first adhesive layer and between the first adhesive layer and the second film.
Disclosure of Invention
In view of the above, it is desirable to provide an opening structure of a GFF touch panel that is not prone to generate bubbles between adjacent layers.
The utility model provides an opening structure of GFF touch screen, includes FPC weld pad and the first film, first viscose layer, second film and the second viscose layer that the stromatolite set up in proper order, be formed with the installation breach in order to expose on the second viscose layer the second film, FPC weld pad set up in on the second film and be located in the installation breach, first film first viscose layer the second film reaches the second viscose layer still link up in one side and is formed with the final opening district of FPC, the bottom of installation breach has still been seted up and has been arranged the bubble opening, arrange the bubble opening and be located FPC weld pad with between the final opening district of FPC, it link up to arrange the bubble opening second film and first viscose layer.
In one embodiment, the first film is exposed in the bubble discharge opening, and the second adhesive layer surrounds the bubble discharge opening.
In one embodiment, the FPC pad is a long strip, and the bubble discharge opening is a long strip gap parallel to the length direction of the FPC pad.
In one embodiment, the FPC bonding pad is in a strip shape, and the bubble discharge opening is a linear slit parallel to the length direction of the FPC bonding pad.
In one embodiment, the FPC bonding pad is in a long strip shape, the bubble discharge opening includes a plurality of bubble discharge holes arranged at intervals, and an arrangement direction of the plurality of bubble discharge holes is parallel to a length direction of the FPC.
In one embodiment, the cross-section of the discharge holes is triangular or rectangular.
In one embodiment, the distance between the FPC solder pads and the blister openings is 0.2 mm or more.
In one embodiment, the distance between the FPC solder pads and the FPC final open area is greater than 1 millimeter.
In one embodiment, the length of the blister opening is greater than the length of the FPC solder pad.
In one embodiment, one end of the bubble discharge opening protrudes beyond one end of the FPC pad by more than 0.2 mm.
Because the bubble discharge opening is positioned between the FPC welding pad and the FPC final opening area, namely, the bubble discharge opening is closer to the FPC welding pad than the FPC final opening area, when the first film, the first adhesive layer, the second film and the second adhesive layer are pressed by using the idler wheels, areas which are easy to form bubbles on the upper side and the lower side of the first adhesive layer can extrude gas into the bubble discharge opening under the extrusion of the idler wheels, so that the bubbles are discharged, and bubbles are generated between adjacent layers.
Drawings
Fig. 1 is a schematic plan view of an opening structure of a GFF touch screen according to an embodiment.
Fig. 2 is a cross-sectional view of the opening structure of the GFF touch screen shown in fig. 1.
Fig. 3 is a partial schematic plan view of an opening structure of a GFF touch screen according to another embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, 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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all 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. 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 term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention relates to an opening structure of a GFF touch screen. For example, the opening structure of the GFF touch screen includes an FPC pad, and a first film, a first adhesive layer, a second film, and a second adhesive layer sequentially stacked. For example, an installation notch is formed on the second adhesive layer to expose the second film, and the FPC pad is disposed on the second film and located in the installation notch. For example, the first film, the first adhesive layer, the second film and the second adhesive layer are further provided with an FPC final opening area on one side in a penetrating manner, and the bottom of the mounting notch is further provided with a bubble discharge opening. For example, the bubble discharge opening is located between the FPC solder pad and the FPC final opening area, and the bubble discharge opening penetrates through the second film and the first adhesive layer. For another example, the opening structure of the GFF touch screen includes an FPC pad, and a first film, a first adhesive layer, a second film, and a second adhesive layer sequentially stacked. For example, an installation notch is formed on the second adhesive layer to expose the second film, and the FPC pad is disposed on the second film and located in the installation notch. For example, the first film, the first adhesive layer, the second film and the second adhesive layer further have an FPC final opening area formed through one side thereof. For example, the bottom of the installation gap is further provided with a bubble discharge opening, the bubble discharge opening is located between the FPC welding pad and the final opening area of the FPC, and the bubble discharge opening penetrates through the second film and the first adhesive layer.
Referring to fig. 1 and 2, an opening structure 100 of a GFF touch screen includes an FPC bonding pad 10, and a first film 21, a first adhesive layer 22, a second film 23, and a second adhesive layer 24 sequentially stacked, where the second adhesive layer is formed with an installation gap 241 to expose the second film, the FPC bonding pad is disposed on the second film and located in the installation gap, the first film, the first adhesive layer, the second film, and the second adhesive layer are further communicated at one side to form an FPC final opening area 25, the bottom of the installation gap is further provided with a bubble discharge opening 26, the bubble discharge opening is located between the FPC bonding pad and the FPC final opening area, and the bubble discharge opening is communicated with the second film and the first adhesive layer.
Because the bubble discharge opening is positioned between the FPC welding pad and the FPC final opening area, namely, the bubble discharge opening is more adjacent to the FPC welding pad than the FPC final opening area, when the first film, the first adhesive layer, the second film and the second adhesive layer are pressed by using the idler wheels, the areas B which are easy to form bubbles on the upper side and the lower side of the first adhesive layer extrude gas into the bubble discharge opening under the extrusion of the idler wheels, so that the bubbles are discharged, and further, bubbles are generated between adjacent layers.
For example, in order to facilitate the arrangement of the bubble discharge opening, the first film is exposed in the bubble discharge opening, and the second adhesive layer surrounds the bubble discharge opening. The FPC welding pad is strip-shaped, and the bubble discharge opening is a strip-shaped notch parallel to the length direction of the FPC welding pad. The FPC welding pad is in a long strip shape, and the bubble discharge opening is a linear gap parallel to the length direction of the FPC welding pad. For example, an opening structure of a GFF touch panel includes an FPC pad, and a first film, a first adhesive layer, a second film, and a second adhesive layer sequentially stacked. The utility model discloses a flexible printed circuit board, including first viscose layer, second film, FPC welding pad, first bubble opening, second viscose layer, second film and first viscose layer, be formed with the installation breach in order to expose on the second viscose layer the second film, FPC welding pad set up in on the second film and be located in the installation breach, first film the first viscose layer the second film reaches the second viscose layer still link up in one side and is formed with the final opening district of FPC, the bottom of installation breach has still been seted up and has been arranged the bubble opening, arrange the bubble opening be located FPC welding pad with between the final opening district of FPC, it has a perfect understanding to arrange the bubble opening second film and first viscose layer, first film expose in arrange the bubble opening, the second viscose layer surrounds arrange the bubble opening, wherein FPC welding pad is rectangular shape, arrange the bubble opening be with the rectangular shape breach that the length direction of FPC welding pad is. Through will arrange the bubble opening and set up in breach or seam for rectangular shape, thereby make arrange bubble open-ended shape with installation breach suits, makes it is more convenient to arrange bubble open-ended setting.
Referring to fig. 3, for example, in order to adapt to the structure of the touch screen, the FPC pad is in a strip shape, the bubble discharge opening includes a plurality of bubble discharge holes 26 arranged at intervals, and the arrangement direction of the plurality of bubble discharge holes is parallel to the length direction of the FPC. The cross section of the discharge hole is triangular or rectangular. For example, an opening structure of a GFF touch panel includes an FPC pad, and a first film, a first adhesive layer, a second film, and a second adhesive layer sequentially stacked. The utility model discloses a structure of a flexible printed circuit board, including second viscose layer, second film, FPC bond pad, first film, first viscose layer, second film and second viscose layer, be formed with the installation breach in order to expose on the second viscose layer the second film, FPC weld pad set up in on the second film and be located in the installation breach, first film the first viscose layer the second film reaches the second viscose layer still link up in one side and be formed with the final opening district of FPC, the bottom of installation breach has still been seted up and has been arranged the bubble opening, arrange the bubble opening and be located FPC weld pad with between the final opening district of FPC, it has a perfect understanding to arrange the bubble opening second film and first viscose layer, first film expose in arrange in the bubble opening, the second viscose layer surrounds arrange the bubble opening, FPC weld pad is rectangular shape, it includes a plurality of rows bubble holes that mutual interval set up to arrange the bubble opening, a plurality of rows of bubble hole's direction is parallel with FPC. The cross section of the discharge hole is triangular or rectangular. Through with arrange the bubble opening and set up to the row bubble opening of a plurality of triangles or rectangle, can reduce relatively first viscose layer with the breach area of second film, and then make the structure area of second film is bigger, can supply to provide the area for further structural design.
Referring to fig. 1 again, for example, in order to design the bubble discharge opening more finely, the distance between the FPC bonding pad and the bubble discharge opening is 0.2 mm or more, i.e., the distance Dy between the edge of the FPC bonding pad and the edge of the bubble discharge hole is 0.2 mm or more. The distance between the FPC welding pad and the final opening area of the FPC is larger than 1 millimeter, namely the distance A between the edge of the FPC welding pad and the edge of the final opening area of the FPC is larger than 1 millimeter. The length of the bubble discharge opening is greater than that of the FPC welding pad, namely the length L1 of the bubble discharge opening is greater than that of the FPC welding pad L2. One end of the bubble discharge opening protrudes beyond one end of the FPC welding pad by more than 0.2 mm, for example, two ends of the bubble discharge opening respectively protrude beyond two ends of the FPC welding pad, and the length of the protruding part of the bubble discharge opening is Dx, wherein Dx is more than 0.2 mm. For example, an opening structure of a GFF touch panel includes an FPC pad, and a first film, a first adhesive layer, a second film, and a second adhesive layer sequentially stacked. The second adhesive layer is provided with an installation gap for exposing the second film, the FPC welding pad is arranged on the second film and positioned in the installation gap, the first film, the first adhesive layer, the second film and the second adhesive layer are communicated at one side to form an FPC final opening area, the bottom of the installation gap is further provided with a bubble discharge opening, the bubble discharge opening is positioned between the FPC welding pad and the FPC final opening area, the bubble discharge opening is communicated with the second film and the first adhesive layer, the first film is exposed out of the bubble discharge opening, the second adhesive layer surrounds the bubble discharge opening, the distance between the FPC welding pad and the bubble discharge opening is more than 0.2 mm, the distance between the FPC welding pad and the FPC final opening area is more than 1 mm, and the length of the bubble discharge opening is more than that of the FPC welding pad, one end of the bubble discharge opening protrudes out of one end of the FPC welding pad by more than 0.2 mm. Through the parameter design, the size and the position of the bubble discharge opening are consistent with the structural design of the GFF touch screen, so that the bubble discharge opening is more reasonable and easier to design.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides an opening structure of GFF touch screen, its characterized in that, includes FPC weld pad and the first film, first viscose layer, second film and the second viscose layer that the stromatolite set up in proper order, be formed with the installation breach in order to expose on the second viscose layer the second film, FPC weld pad set up in on the second film and be located in the installation breach, first film first viscose layer the second film reaches the second viscose layer still link up in one side and is formed with the final opening district of FPC, the bottom of installation breach has still been seted up and has been arranged the bubble opening, arrange the bubble opening and be located FPC weld pad with between the final opening district of FPC, it link up to arrange the bubble opening second film and first viscose layer.
2. The opening structure of a GFF touch screen of claim 1, wherein the first film is exposed in the blister opening and the second adhesive layer surrounds the blister opening.
3. The opening structure of the GFF touch screen of claim 1, wherein the FPC pad is strip-shaped, and the bubble discharge opening is a strip-shaped gap parallel to the length direction of the FPC pad.
4. The opening structure of the GFF touch screen of claim 1, wherein the FPC pad is strip-shaped, and the bubble discharge opening is a linear slit parallel to the length direction of the FPC pad.
5. The opening structure of a GFF touch screen according to claim 1, wherein the FPC pad is elongated, the bubble discharge opening includes a plurality of discharge holes spaced apart from each other, and the arrangement direction of the discharge holes is parallel to the length direction of the FPC.
6. The opening structure of a GFF touch screen according to claim 5, wherein the cross section of the row of holes is triangular or rectangular.
7. The opening structure of a GFF touch screen of claim 1, wherein the distance between the FPC solder pad and the bubble discharge opening is 0.2 mm or more.
8. The opening structure of a GFF touch screen of claim 1, wherein the distance between the FPC solder pad and the FPC final opening area is greater than 1 mm.
9. The opening structure of a GFF touchscreen of claim 1, wherein the length of the blister opening is greater than the length of the FPC solder pad.
10. The opening structure of a GFF touch screen of claim 9, wherein one end of the row of bubble openings protrudes above one end of the FPC solder pads by more than 0.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646820.1A CN107390937B (en) | 2017-08-01 | 2017-08-01 | Opening structure of GFF touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646820.1A CN107390937B (en) | 2017-08-01 | 2017-08-01 | Opening structure of GFF touch screen |
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| Publication Number | Publication Date |
|---|---|
| CN107390937A CN107390937A (en) | 2017-11-24 |
| CN107390937B true CN107390937B (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710646820.1A Expired - Fee Related CN107390937B (en) | 2017-08-01 | 2017-08-01 | Opening structure of GFF touch screen |
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| CN109144312A (en) * | 2018-07-27 | 2019-01-04 | 京东方科技集团股份有限公司 | The production method and display device of a kind of optical cement, optical cement |
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|---|---|---|---|---|
| JP2004341756A (en) * | 2003-05-15 | 2004-12-02 | Kawaguchiko Seimitsu Co Ltd | Pressurizing device for burning touch panel |
| CN101398555A (en) * | 2007-09-26 | 2009-04-01 | 株式会社日立显示器 | Display device |
| DE102012221359A1 (en) * | 2011-11-22 | 2013-05-23 | Atmel Corporation | Integrated touch screen |
| CN203786691U (en) * | 2014-02-13 | 2014-08-20 | 宸鸿科技(厦门)有限公司 | Touch control display device and display equipment of touch control display device |
| CN104808843A (en) * | 2015-04-03 | 2015-07-29 | 业成光电（深圳）有限公司 | Touch panel and touch display panel |
| CN204558025U (en) * | 2015-03-23 | 2015-08-12 | 深圳市美睿辰电子科技有限公司 | The MP3 player that a kind of safety is anti-dazzle |
| CN205563502U (en) * | 2016-01-15 | 2016-09-07 | 厦门天马微电子有限公司 | Power touch -sensitive display device |
-
2017
- 2017-08-01 CN CN201710646820.1A patent/CN107390937B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004341756A (en) * | 2003-05-15 | 2004-12-02 | Kawaguchiko Seimitsu Co Ltd | Pressurizing device for burning touch panel |
| CN101398555A (en) * | 2007-09-26 | 2009-04-01 | 株式会社日立显示器 | Display device |
| DE102012221359A1 (en) * | 2011-11-22 | 2013-05-23 | Atmel Corporation | Integrated touch screen |
| CN203786691U (en) * | 2014-02-13 | 2014-08-20 | 宸鸿科技(厦门)有限公司 | Touch control display device and display equipment of touch control display device |
| CN204558025U (en) * | 2015-03-23 | 2015-08-12 | 深圳市美睿辰电子科技有限公司 | The MP3 player that a kind of safety is anti-dazzle |
| CN104808843A (en) * | 2015-04-03 | 2015-07-29 | 业成光电（深圳）有限公司 | Touch panel and touch display panel |
| CN205563502U (en) * | 2016-01-15 | 2016-09-07 | 厦门天马微电子有限公司 | Power touch -sensitive display device |
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| CN107390937A (en) | 2017-11-24 |
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