CN205987543U - Flexible circuit board and liquid crystal disply device - Google Patents
Flexible circuit board and liquid crystal disply device Download PDFInfo
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- CN205987543U CN205987543U CN201620915230.5U CN201620915230U CN205987543U CN 205987543 U CN205987543 U CN 205987543U CN 201620915230 U CN201620915230 U CN 201620915230U CN 205987543 U CN205987543 U CN 205987543U
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- edge
- golden finger
- flexible pcb
- liquid crystal
- glass substrate
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Abstract
The utility model provides a flexible circuit board, the tip of flexible circuit board is equipped with binds the district, bind the golden finger of district including a plurality of align to grid, the golden finger has first edge, first edge with has a distance between the side of tip. The utility model discloses still provide liquid crystal disply device, liquid crystal disply device still includes the display screen, arrange a plurality of align to grid's ITO finger on the glass substrate in the display screen, the flexible circuit board with when glass substrate binds, ITO points the quilt the golden finger covers. The utility model discloses a flexible circuit board and liquid crystal disply device can avoid the golden finger to expose outside glass substrate after the flexible circuit board is bound, reduce the process that coating UV glued, reduce cost.
Description
Technical field
This utility model is related to liquid crystal display device field, more particularly, to flexible PCB and have described flexible PCB
Liquid crystal indicator.
Background technology
Flexible PCB (Flexible Printed Circuit, abbreviation FPC) be using PI (polyimides) film be base
Material, the wiring board sheet material made together with Copper Foil pressing.FPC printed substrate rigid with PCB compares, FPC possess free bend,
The advantages of fold, wind, during completed knocked down products, FPC arbitrarily can be arranged according to the layout in interiors of products space as wire
Cloth, such that it is able to components and parts of arbitrarily arranging in three dimensions, and also can cancel adapter between wire and wiring board
Part, therefore, FPC can make miniaturization of electronic products, precise treatment, and product reliability greatly improves.FPC has been widely used in movement
The fields such as communication products, laptop computer, consumer electronics product, space flight, Military Electronic Equipment.
When FPC in liquid crystal indicator binds the golden finger design on end at present, all can be by the golden finger on binding end
Against FPC outline edge, but under golden finger register guide alignment case, for preventing golden finger and circuit trace after FPC binding
Or the ITO finger on glass substrate is short-circuited it will usually golden finger on guaranteeing FPC and glass ITO finger contact length
In the case that (minima is 0.65mm, generally 0.7mm) is enough, the pin foot of golden finger upper end and glass substrate is shortened
0.05mm～0.1mm.
However, in prior art after the binding of FPC and glass substrate, one end of golden finger can exposed outside glass, thus
Lead to FPC easily golden finger to fracture in bending, cause circuit to disconnect, and typically require coating UV glue at exposed golden finger
Solidification is protected, and prevents FPC from bending, golden finger fractureing, this will increased cost.
Utility model content
In view of this, this utility model purpose is to provide a kind of flexible PCB and liquid crystal indicator, can be soft
Property circuit board binding after avoid golden finger exposed outside glass substrate, reduce coating UV glue operation, reduces cost.
Specifically, this utility model embodiment provides a kind of flexible PCB, and the end of described flexible PCB is provided with ties up
Determine area, described binding area includes multiple evenly distributed golden fingers, and described golden finger has first edge, described first edge with
There is between the side of described end a distance.
Specifically, described side is the side that described end is intersected with the bearing of trend of described golden finger.
Specifically, the distance between described first edge and described side are 0.1mm～0.15mm.
Specifically, described golden finger also has the second edge relative with described first edge, described first edge and institute
State the length that the distance between second edge is described golden finger.
Specifically, described first edge and described second edge are respectively positioned on the same side of described side, described first side
Edge is arranged near described side, and described second edge is arranged away from described side.
Specifically, the length of described golden finger is 0.7mm～0.9mm.
This utility model also provides a kind of liquid crystal indicator, and described liquid crystal indicator includes flexible circuit described above
Plate.
Specifically, described liquid crystal indicator also includes display screen, the glass substrate in described display screen is disposed with many
Individual evenly distributed ITO finger, when described flexible PCB and described glass substrate binding, described ITO finger is by described gold handss
Refer to cover.
Flexible PCB and liquid crystal indicator that the present embodiment provides, by binding the golden handss in area by flexible PCB
Finger moves down the edge without departing from glass substrate for the second edge of golden finger after arranging and binding with glass substrate, so that binding
The first edge of golden finger will not touch the circuit cabling of the first end of ITO finger on glass substrate afterwards, thus preventing soft
Property circuit board be short-circuited with the circuit cabling of glass substrate after binding, the second end of ITO finger and glass substrate simultaneously
Edge is provided with a certain distance, so that not having the exposed edge in glass substrate of golden finger after flexible PCB binding
Outside, and then the operation applying UV glue, reduces cost can be reduced.
What the present embodiment provided is that above and other objects, features and advantages of the present utility model can be become apparent,
Preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, it is described in detail below.
Brief description
The structural representation of the flexible PCB that Fig. 1 provides for this utility model embodiment.
Structural representation when Fig. 2 is bound with glass substrate for the flexible PCB that this utility model embodiment provides.
Specific embodiment
For further illustrating that this utility model is to realize technological means and effect that expected purpose is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to according to the utility model proposes flexible PCB 10 and liquid crystal indicator specific embodiment party
Formula, method, step, structure, feature and effect, after describing in detail such as.
About of the present utility model aforementioned and other technology contents, feature and effect, coordinate with reference to schema relatively following
Can clearly present in the detailed description of good embodiment.By the explanation of specific embodiment, when to this utility model being
Reach the technological means that expected purpose taken and effect be able to more deeply and specific understand, but institute's accompanying drawings only carry
For reference with purposes of discussion, not it is used for this utility model is any limitation as.
Refer to Fig. 1, the structural representation of the flexible PCB 10 that Fig. 1 provides for this utility model embodiment.As Fig. 1 institute
Show, flexible PCB 10 (Flexible Printed Circuit, abbreviation FPC) has one end, in flexible PCB 10
End 12 is provided with unbundling area 13 and binding area 14.Specifically, binding area 14 is arranged near the end of end 12, unbundling area 13
Arrange around binding area 14.
Specifically, in the present embodiment, binding area 13 includes the golden finger 142 of multiple evenly distributed arrangements.It is appreciated that
, bind the golden finger 142 arranged in area 14 and there is being arranged in order of certain intervals, with shape golden finger in a row 142.This golden hands
Refer to 142, on the direction that length L is located, there is first edge 143 and the second edge 145 relative with this first edge 143.?
In the present embodiment, length L of golden finger 142 is the distance between first edge 143 and second edge 145, specifically, this enforcement
The dew copper region of the golden finger 142 in example can be, but not limited to make using etching technics, so that the tolerance of golden finger 142
Can control in ± 0.1mm, and then length L of the golden finger 142 arbitrarily long angle value in 0.7mm to 0.9mm can be controlled, but
It is not limited to this, for example length L can also be other length values in other embodiments.
Specifically, the end 12 of flexible PCB 10 has a side 121, this side 121 be end 12 on golden finger
The side that 142 bearing of trend is intersected with end 12, wherein, this golden finger 142 bearing of trend is that length L of golden finger 142 is prolonged
The direction stretched.In the present embodiment, golden finger 142 is located in the side of side 121 of end 12, i.e. the of this golden finger 142
One edge 143 is respectively positioned in the same side of side 121 with second edge 145.Specifically, the first edge 143 of golden finger 142 is leaned on
The side 121 of close end 12 is arranged, and the second edge 145 of golden finger 142 then the side 121 away from end 12 is arranged.At this
In embodiment, between the first edge 143 of golden finger 142 and the side 121 of end 12, there are certain intervals, specifically, first
Edge 143 and any one distance value that the distance between side 121 H is in 0.1mm to 0.15mm, but and be limited to this, for example exist
In other embodiments apart from H can also be other distance values.
Specifically, in the present embodiment, unbundling area 13 is coated with coverlay (figure does not indicate), is arranged below in coverlay
The conducting wire (not shown) being connected with golden finger 142, wherein it is possible to but be not limited to the conductor wire being formed by Copper Foil etching
Road.Further, coverlay is the surface being attached at conducting wire, plays insulation, the effect of masking protection conducting wire, and can increase
Ledger line road ability resistant to bending.
Please also refer to Fig. 2, Fig. 2 is bound with glass substrate 20 for the flexible PCB 10 that this utility model embodiment provides
When structural representation.Liquid crystal indicator includes display screen (not shown) and flexible PCB 10, and flexible PCB 10 leads to
Cross binding area 14 to electrically connect with the glass substrate 20 in display screen, to transmit all kinds of signals of telecommunication to display screen, thus driving display
Screen carries out picture and shows.As shown in Figures 1 and 2, the glass substrate 20 in display screen is disposed with multiple evenly distributed ITO handss
Refer to 22, adjacent between ITO finger 22 interval all equal.ITO finger 22 have first end 221 and with this first end 221 phase
To the second end 223, specifically, the first end 221 of ITO finger 22 is connected with the conducting wire on glass substrate 20.Enter one
Step ground, the interval between golden finger 142 is equal with the interval between ITO finger 22, and the second end 223 of ITO finger 22 is leaned on
The edge 24 of nearly glass substrate 20 is arranged, and specifically, the second end 223 of ITO finger 22 and the edge 24 of glass substrate 20 are arranged
There is a certain distance.
The golden finger in binding area 14 when flexible PCB 10 and glass substrate 20 binding, in flexible PCB 10
142 are corresponded with the ITO finger 22 on glass substrate 20 respectively, and are stitched together, thus forming the circuit of conducting.Tool
Body ground, the ITO finger 22 on golden finger 142 cover glass substrate 20 in flexible PCB 10, due to one end of ITO finger 22
The edge 24 of glass substrate 20 is provided with a certain distance, therefore in first edge 143 and the flexible PCB of golden finger 142
It is provided with one after H, golden finger when flexible PCB 10 and glass substrate 20 binding between the side 121 of the end 12 in 10
142 second edge 145 will not exceed the edge 24 of glass substrate 20, thus tying up with glass substrate 20 in flexible PCB 10
After fixed it can be avoided that the golden finger 142 on flexible PCB 10 exposed outside glass substrate 20.Additionally, flexible PCB 10 with
After glass substrate 20 binding, due to the side 121 of the end 12 in the first edge 143 and flexible PCB 10 of golden finger 142
Between be provided with one apart from H, the first edge 143 of therefore golden finger 142 will not touch the ITO finger 22 on glass substrate 20
Bottom circuit cabling, thus preventing flexible PCB 10 to be short-circuited with the circuit cabling of glass substrate 20 after binding.
However, in order to make golden finger 142 have good electric conductivity and good contact with after ITO finger 22 splicing, then
Golden finger 142 and ITO finger 22 is needed to have certain contact surface, in particular it is required that the golden finger 142 in flexible PCB 10
With the contact length of the ITO finger 22 on glass substrate 20, there is certain length, wherein, contact length typically takes 0.7mm, but simultaneously
It is not limited.In the present embodiment, the length of the ITO finger 22 on glass substrate 20 is 0.9mm, but is not limited to this, example
Length as ITO finger 22 in other embodiments can also be other length values.Due to the golden finger in flexible PCB 10
142 first edge 143 and the side 121 of end 12 are provided with one apart from H, and length L of golden finger 142 arrives for 0.7mm
Between 0.9mm, so after flexible PCB 10 with glass substrate 20 binding, the contact length of golden finger 142 and ITO finger 22
At least 0.7mm, and the second edge 145 of golden finger 142 will not exposed outside glass substrate 20, such that it is able to reduce coating
The operation of UV curing glue, with reduces cost.
It follows that the flexible PCB 10 that provides of the present embodiment and liquid crystal indicator, by by flexible PCB 10
The second edge 145 that golden finger 142 in binding area 14 moves down golden finger 142 after arranging and binding with glass substrate 20 will not surpass
Go out the edge 24 of glass substrate 20, so that the first edge 143 of golden finger 142 will not touch on glass substrate 20 after binding
The first end 221 of ITO finger 22 circuit cabling, thus preventing the line with glass substrate 20 after binding for the flexible PCB 10
Road cabling is short-circuited, and the second end 223 of ITO finger 22 and the edge 24 of glass substrate 20 are provided with a certain distance simultaneously,
So that flexible PCB 10 binding after do not have golden finger 142 exposed outside the edge 24 of glass substrate 20, Jin Erke
To reduce the operation of coating UV glue, reduces cost.
The above, be only preferred embodiment of the present utility model, not this utility model is made any formal
Restriction although this utility model is disclosed above with preferred embodiment, but be not limited to utility model, any be familiar with
Professional and technical personnel, in the range of without departing from utility model technical scheme, when the technology contents of available the disclosure above are made
Go out a little Equivalent embodiments changing or be modified to equivalent variations, as long as being without departing from utility model technical scheme content, foundation
Any simple modification, equivalent variations and modification that the technical spirit of utility model is made to above example, all still fall within this reality
In the range of new technique scheme.
Claims (8)
1. a kind of flexible PCB, the end of described flexible PCB is provided with binding area, and described binding area includes multiple uniform rows
The golden finger of row is it is characterised in that described golden finger has first edge, between the side of described first edge and described end
There is a distance.
2. flexible PCB as claimed in claim 1 is it is characterised in that described side is described end and described golden finger
The side that bearing of trend intersects.
3. flexible PCB as claimed in claim 1 is it is characterised in that the distance between described first edge and described side
For 0.1mm～0.15mm.
4. flexible PCB as claimed in claim 1 is it is characterised in that described golden finger also has and described first edge phase
To second edge, the distance between described first edge and described second edge are the length of described golden finger.
5. flexible PCB as claimed in claim 4 is it is characterised in that described first edge is respectively positioned on described second edge
On the same side of described side, described first edge is arranged near described side, and described second edge is arranged away from described side.
6. flexible PCB as claimed in claim 4 is it is characterised in that the length of described golden finger is 0.7mm～0.9mm.
7. a kind of liquid crystal indicator is it is characterised in that described liquid crystal indicator is included as any one of claim 1-6 institute
The flexible PCB stated.
8. liquid crystal indicator as claimed in claim 7 is it is characterised in that described liquid crystal indicator also includes display screen,
Multiple evenly distributed ITO fingers, described flexible PCB and described glass are disposed with the glass substrate in described display screen
During substrate binding, described ITO finger is covered by described golden finger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620915230.5U CN205987543U (en) | 2016-08-22 | 2016-08-22 | Flexible circuit board and liquid crystal disply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620915230.5U CN205987543U (en) | 2016-08-22 | 2016-08-22 | Flexible circuit board and liquid crystal disply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205987543U true CN205987543U (en) | 2017-02-22 |
Family
ID=58032570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620915230.5U Active CN205987543U (en) | 2016-08-22 | 2016-08-22 | Flexible circuit board and liquid crystal disply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205987543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113923861A (en) * | 2021-11-17 | 2022-01-11 | 广西天山电子股份有限公司 | Flexible circuit board with even binding force and binding method of flexible circuit board and LCD |
-
2016
- 2016-08-22 CN CN201620915230.5U patent/CN205987543U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113923861A (en) * | 2021-11-17 | 2022-01-11 | 广西天山电子股份有限公司 | Flexible circuit board with even binding force and binding method of flexible circuit board and LCD |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |