CN213122954U - Anti-breaking flexible circuit board and capacitive touch screen - Google Patents
Anti-breaking flexible circuit board and capacitive touch screen Download PDFInfo
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- CN213122954U CN213122954U CN202021925833.6U CN202021925833U CN213122954U CN 213122954 U CN213122954 U CN 213122954U CN 202021925833 U CN202021925833 U CN 202021925833U CN 213122954 U CN213122954 U CN 213122954U
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- circuit board
- flexible circuit
- bonding
- touch screen
- crimping
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Abstract
The utility model discloses an anti-break flexible circuit board and a capacitive touch screen, wherein the anti-break flexible circuit board comprises a flexible circuit board body, and a first bonding end is arranged on the flexible circuit board body; the first bonding end comprises: the flexible circuit board comprises a flexible circuit board body, a bent part and a bonding part, wherein the bent part extends out of one end of the flexible circuit board body, the bonding part transversely extends out of the bent part, the bent part and the bonding part are arranged in an L shape, a first crimping part is arranged on the bonding part, and a gap part is arranged between the first crimping part and the bent part; the first bonding end is bonded on the touch screen glass through the first crimping part. The utility model discloses a set up kink and nation fixed portion at first nation fixed end to extend first crimping portion in nation fixed portion, bind with touch-sensitive screen glass through first crimping portion, and first crimping portion and kink interval, and then make to buckle after the nation and produce at the kink, it is irrelevant with crimping portion windowing department, avoided windowing out the rupture.
Description
Technical Field
The utility model relates to a touch-sensitive screen field, in particular to prevent rupture flexible circuit board and capacitive touch screen.
Background
The FPC is short for a Flexible Printed Circuit, is also called as a Flexible Circuit board, a Flexible Printed Circuit board and a Flexible Circuit board, is short for a Flexible board or FPC, and has the characteristics of high wiring density, light weight and thin thickness. The touch screen is mainly used in products such as capacitive touch screens, submachine, notebook computers, PDAs, digital cameras, display modules and the like.
When the existing FPC is bonded, the FPC is directly bonded on the touch screen glass, so that the fragile area of the edge of the opening window of the golden finger of the FPC is easy to break when the FPC is bent.
Thus, the prior art has yet to be improved and enhanced.
SUMMERY OF THE UTILITY MODEL
In view of the weak point of above-mentioned prior art, the utility model aims to provide a prevent flexible circuit board and capacitive touch screen of breaking through setting up kink and bonding portion at first bonding end to extend first crimping portion in bonding portion, bond with touch-sensitive screen glass through first crimping portion, and first crimping portion is disconnected with the kink, and then make and to make the production of buckling at the kink after bonding, and irrelevant with crimping portion windowing department, avoided windowing department rupture.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides an anti-break flexible circuit board, which comprises a flexible circuit board body, wherein a first bonding end is arranged on the flexible circuit board body; the first bonding end comprises: the flexible circuit board comprises a flexible circuit board body, a bent part and a bonding part, wherein the bent part extends out of one end of the flexible circuit board body, the bonding part transversely extends out of the bent part, the bent part and the bonding part are arranged in an L shape, a first crimping part is arranged on the bonding part, and a gap part is arranged between the first crimping part and the bent part; the first bonding end is bonded on the touch screen glass through the first crimping part. This embodiment bonds through first crimping portion and touch-sensitive screen glass, and first crimping portion is disconnected with the kink, and then makes and to make the bending produce at the kink after bonding, and is irrelevant with crimping portion windowing department, has avoided windowing to go out the rupture.
Bonding portion pastes on touch-sensitive screen glass through the anisotropic conductive adhesive film, has further strengthened the stability of first crimping portion.
The gap portion is a second gap extending in the direction of the touch screen glass. This embodiment is in first crimping portion with set up the clearance between the kink, make first crimping portion with be disconnected between the kink, when flexible circuit board produced the bending, the bending type produces first crimping portion can not be influenced to the kink, and then has avoided first press portion to open the window position fracture.
The flexible circuit board body is further provided with a second bonding end arranged at the same end as the first bonding end. And a second crimping part is arranged on the second bonding end, and the second bonding end is bonded on the touch screen glass through the second crimping part. In this embodiment, set up second crimping portion on the second nation decides the end, realized the whole nation with touch-sensitive screen glass of flexible circuit board body.
The second bonding end with be provided with first clearance between the first bonding end, first clearance extends towards the direction of keeping away from touch-sensitive screen glass. The first gap enables the bending part and the second bonding end to be disconnected, when the bending part is bent, the second pressing part cannot be affected, and the edge of the second pressing part which is windowed is prevented from being broken
The first crimping part and the second crimping part are both golden fingers. The flexible circuit board is electrically connected with the touch screen glass.
The flexible circuit board body is further provided with a printed circuit and a pressure sensor, the printed circuit is electrically connected with the touch screen glass through the first crimping part and the second crimping part respectively, and the pressure sensor is electrically connected with the printed circuit, so that the touch function of the capacitive touch screen is realized.
The utility model provides a capacitive touch screen, includes the touch-sensitive screen body, be provided with touch-sensitive screen glass and the above on the touch-sensitive screen body prevent the flexible circuit board of rupture, prevent that the flexible circuit board nation of rupture is in touch-sensitive screen glass, and with the touch-sensitive screen glass electricity is connected.
Compared with the prior art, the anti-breaking flexible circuit board and the capacitive touch screen provided by the utility model have the advantages that the anti-breaking flexible circuit board comprises a flexible circuit board body, and a first bonding end is arranged on the flexible circuit board body; the first bonding end comprises: the flexible circuit board comprises a flexible circuit board body, a bent part and a bonding part, wherein the bent part extends out of one end of the flexible circuit board body, the bonding part transversely extends out of the bent part, the bent part and the bonding part are arranged in an L shape, a first crimping part is arranged on the bonding part, and a gap part is arranged between the first crimping part and the bent part; the first bonding end is bonded on the touch screen glass through the first crimping part. The utility model discloses a set up kink and nation fixed portion at first nation fixed end to extend first crimping portion in nation fixed portion, bind with touch-sensitive screen glass through first crimping portion, and first crimping portion and kink interval, and then make to buckle after the nation and produce at the kink, it is irrelevant with crimping portion windowing department, avoided windowing out the rupture.
Drawings
FIG. 1 is a block diagram of a prior art flexible circuit board;
fig. 2 is a structural diagram of a capacitive touch screen provided by the present invention;
fig. 3 is a structural diagram of the anti-breaking flexible circuit board of the television set provided by the present invention.
Detailed Description
The utility model provides a prevent flexible circuit board and capacitive touch screen of rupture through setting up kink and nation fixed portion at first nation fixed end to extend first crimping portion in nation fixed portion, bind with touch-sensitive screen glass through first crimping portion, and first crimping portion is disconnected with the kink, and then make to make after the nation buckle production at the kink, and the department of windowing irrelevantly with crimping portion, avoided windowing out the rupture.
The present invention is described in more detail in order to facilitate the explanation of the technical idea, the technical problem solved, the technical features of the technical solution, and the technical effects brought by the present invention. The embodiments are explained below, but the scope of the present invention is not limited thereto. Further, the technical features of the embodiments described below may be combined with each other as long as they do not conflict with each other.
The FPC flexible printed circuit is a printed circuit having high reliability and excellent flexibility, which is made of polyimide or polyester film (made of polyimide resin material, i.e., PI) as a base material.
The FPC is widely used in a capacitive touch screen, and connects a circuit on a touch screen glass of the capacitive touch screen with a corresponding external circuit and/or an external chip.
However, the conventional FPC is bonded directly to the touch screen glass, which makes the weak region (as shown at 10 in fig. 1) of the edge of the opening window of the gold finger of the FPC easily broken when it is bent.
In view of the above problems in the prior art, please refer to fig. 2 and 3, the present invention provides an anti-breaking flexible circuit board 100, which includes a flexible circuit board body (not numbered in the figures), wherein a first bonding end 110 is disposed on the flexible circuit board body; the first bonding end 110 includes a bending portion 111, a bonding portion 112 extends from the bending portion 111, the bending portion 111 and the bonding portion 112 are disposed in an L shape, a first bonding portion 113 extends from the bonding portion 112 toward the bending portion 111, and the first bonding portion 113 is not connected to the bending portion 111; the first bonding end 110 is bonded to the touch screen glass 210 through the first crimp 113.
In specific implementation, in this embodiment, the bending portion 111, the bonding portion and the flexible circuit board body are integrally formed, and the bending portion 111 extends towards the wire deviating from the touch screen glass 210. Nation portion 112 extends the position windowing of first crimping portion 113 for set up first crimping portion 113, through first crimping portion 113 nation realizes corresponding circuit function on touch-sensitive screen glass 210 (because the utility model discloses the technical problem who solves is not here, and this part is prior art, therefore no longer explains. In the present embodiment, the first press-connection portion 113 is bonded to the touch screen glass 210, and the first press-connection portion 113 is not connected to the bending portion 111, so that the bending portion 111 is formed after the bonding, which is not related to the position where the press-connection portion is opened, thereby preventing the window from being broken.
Further, referring to fig. 3, the bending portion 111 is not connected to the first pressing portion 113, specifically, a second gap 140 is disposed between the bending portion 111 and the first pressing portion 113, an opening direction of the second gap 140 deviates from the touch screen glass 210 and extends toward the touch screen glass 210, in this embodiment, the second gap 140 is extended to the bonding portion 112, the length of the second gap 140 may also be expanded or reduced according to actual requirements, and the width of the second gap 140 may also be set according to needs, which is not limited herein. In this embodiment, a gap is formed between the first press-bonding part 113 and the bending part 111, so that the first press-bonding part 113 and the bending part 111 are not connected, when the flexible circuit board 100 is bent, the bending part 111 is bent, the first press-bonding part 113 is not affected, and the cracking of the first press-bonding part opening window is avoided.
Further, referring to fig. 3, after the flexible circuit board 100 is bonded to the touch screen glass 210 through the first bonding portion 113, the bonding portion 112 is adhered to the touch screen glass 210 through an Anisotropic Conductive Film (ACF); when the bending occurs, since the bonding portion 112 is fixedly bonded, the first pressure-bonding section 113 is not affected by the bonding portion 112, and the stability of the first pressure-bonding section 113 is further enhanced.
Further, please refer to fig. 3, a second bonding end 120 is further disposed on the flexible circuit board body, a second press-connection portion 121 extends from the second bonding end 120, and the second bonding end is bonded to the touch screen glass 210 through the second press-connection portion 121. The second bonding end 120 and the first bonding end 110 achieve bonding of the whole flexible circuit board body and the touch screen glass 210, and achieve electric connection of the flexible circuit board body and the touch screen glass 210.
Referring to fig. 3, a first gap 130 is disposed between the second bonding end 110 and the first bonding end 120, and the first gap 130 extends away from the touch screen glass 210. The first gap 130 prevents the bending portion 111 and the second bonding end 120 from being connected to each other, and when the bending occurs, the second pressing portion 121 is not affected, thereby preventing the opening edge of the second pressing portion 121 from being broken.
Specifically, referring to fig. 3, the first press-connection part 113 and the second press-connection part 121 are both gold fingers, and the flexible circuit board body is bonded and electrically connected to the touch screen glass 210 through the gold fingers.
Further, referring to fig. 3, a printed circuit and a pressure sensor are further disposed on the flexible circuit board body, the printed circuit is electrically connected to the touch screen glass 210 through the first and second crimping portions 113 and 121, respectively, and the pressure sensor is electrically connected to the printed circuit. In this embodiment, the pressure sensor, the printed circuit, the first pressing part 113 and the second pressing part 121, and the touch screen glass 210 are electrically connected in sequence, so as to implement a touch function of the capacitive touch screen.
Specifically, referring to fig. 3, the printed circuit board is provided with a reinforcing plate 150, and the reinforcing plate 150 is grounded to increase the thickness of the flexible circuit board 100 and provide the high temperature resistance of the flexible circuit board 100.
Based on foretell flexible circuit board of preventing breaking, please refer to fig. 2, the utility model discloses still provide a capacitive touch screen, including touch-sensitive screen body 200, be provided with touch-sensitive screen glass and the above on the touch-sensitive screen body 200 the flexible circuit board 100 of preventing breaking, the flexible circuit board of preventing breaking with the touch-sensitive screen glass electricity is connected. Since the breakage preventing flexible circuit board has been described above in detail, it will not be described in detail here.
In summary, the anti-break flexible circuit board and the capacitive touch screen provided by the present invention include a flexible circuit board body, wherein a first bonding end is disposed on the flexible circuit board body; the first bonding end comprises: the flexible circuit board comprises a flexible circuit board body, a bent part and a bonding part, wherein the bent part extends out of one end of the flexible circuit board body, the bonding part transversely extends out of the bent part, the bent part and the bonding part are arranged in an L shape, a first crimping part is arranged on the bonding part, and a gap part is arranged between the first crimping part and the bent part; the first bonding end is bonded on the touch screen glass through the first crimping part. The utility model discloses a set up kink and nation fixed portion at first nation fixed end to extend first crimping portion in nation fixed portion, bind with touch-sensitive screen glass through first crimping portion, and first crimping portion and kink interval, and then make to buckle after the nation and produce at the kink, it is irrelevant with crimping portion windowing department, avoided windowing out the rupture.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (9)
1. The anti-breaking flexible circuit board is characterized by comprising a flexible circuit board body, wherein a first bonding end is arranged on the flexible circuit board body;
the first bonding end comprises: the flexible circuit board comprises a flexible circuit board body, a bent part and a bonding part, wherein the bent part extends out of one end of the flexible circuit board body, the bonding part transversely extends out of the bent part, the bent part and the bonding part are arranged in an L shape, a first crimping part is arranged on the bonding part, and a gap part is arranged between the first crimping part and the bent part;
the first bonding end is bonded on the touch screen glass through the first crimping part.
2. The anti-break flexible circuit board according to claim 1, wherein the bonding portion is adhered to the touch screen glass through an anisotropic conductive adhesive film.
3. The anti-break flexible circuit board according to claim 1, wherein a second bonding end is disposed at the same end as the first bonding end on the flexible circuit board body.
4. The anti-break flexible circuit board according to claim 3, wherein a second crimping portion is disposed on the second bonding end, and the second bonding end is bonded to the touch screen glass through the second crimping portion.
5. The anti-snap flexible circuit board according to claim 3, wherein a first gap is provided between the second bonding end and the first bonding end, and the first gap extends in a direction away from the touch screen glass.
6. The anti-snap flexible circuit board according to claim 4, wherein the first and second crimping portions are both gold fingers.
7. The break-resistant flexible circuit board according to claim 2, wherein the gap portion is a second gap extending in a direction of the touch screen glass.
8. The anti-break flexible circuit board according to claim 4, wherein a printed circuit and a pressure sensor are further disposed on the flexible circuit board body, the printed circuit is electrically connected to the touch screen glass through the first and second crimping parts, respectively, and the pressure sensor is electrically connected to the printed circuit.
9. A capacitive touch screen, comprising a touch screen body, wherein the touch screen body is provided with touch screen glass and the anti-break flexible circuit board of any one of claims 1 to 8, and the anti-break flexible circuit board is bonded to the touch screen glass and electrically connected with the touch screen glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021925833.6U CN213122954U (en) | 2020-09-04 | 2020-09-04 | Anti-breaking flexible circuit board and capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021925833.6U CN213122954U (en) | 2020-09-04 | 2020-09-04 | Anti-breaking flexible circuit board and capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213122954U true CN213122954U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021925833.6U Active CN213122954U (en) | 2020-09-04 | 2020-09-04 | Anti-breaking flexible circuit board and capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213122954U (en) |
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2020
- 2020-09-04 CN CN202021925833.6U patent/CN213122954U/en active Active
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