CN105578726A - Electronic terminal - Google Patents
Electronic terminal Download PDFInfo
- Publication number
- CN105578726A CN105578726A CN201610013098.3A CN201610013098A CN105578726A CN 105578726 A CN105578726 A CN 105578726A CN 201610013098 A CN201610013098 A CN 201610013098A CN 105578726 A CN105578726 A CN 105578726A
- Authority
- CN
- China
- Prior art keywords
- printed circuit
- circuit board
- flexible printed
- electric terminal
- pcb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 239000010949 copper Substances 0.000 claims abstract description 24
- 239000004020 conductor Substances 0.000 claims description 26
- 239000010410 layer Substances 0.000 description 16
- 239000011889 copper foil Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0215—Grounding of printed circuits by connection to external grounding means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention provides an electronic terminal. The electronic terminal comprises a display panel, a printed circuit board and a flexible printed circuit board, wherein a part of the flexible printed circuit board is arranged below the printed circuit board, one end of the flexible printed circuit board is connected to the display panel, the other end of the flexible printed circuit board is connected to a driving circuit interface of the printed circuit board so as to provide a driving signal for the display panel through the flexible printed circuit board, a first copper leakage region is arranged at a position where a ground line is located, the ground line is arranged in a part, coincided with the printed circuit board, on the flexible printed circuit board, a second copper leakage region is arranged at a position where a ground line is located, and the ground line is arranged in part, coincided with the flexible printed circuit board, on the printed circuit board, so that the ground line in the printed circuit board is electrically connected with the ground line in the flexible printed circuit board. In the above electronic terminal, the ground line of the flexible printed circuit board is taken as an extension line of the ground line in the printed circuit board, thus, the length of the ground line in the printed circuit board is matched with the length of an antenna in the electronic terminal.
Description
Technical field
All things considered of the present invention relates to the manufacture field of electric terminal, more particularly, relates to a kind of using the electric terminal prolongedly of the ground wire of flexible printed circuit board as the ground wire in printed circuit board (PCB).
Background technology
At present, along with the development of electronic science and technology, the making of electric terminal, gradually to lightening development, in the prior art, for making electric terminal more frivolous, can reduce the size of the printed circuit board (PCB) (pcb board) in electric terminal usually.
Be generally the size realizing reducing printed circuit board (PCB) by the width of shortening printed circuit board (PCB), with while the thickness reducing electric terminal, reduce the waste between printed circuit board (PCB) layout, effectively cost-saving.But, the contraction in length of the ground wire in printed circuit board (PCB) can be caused after the narrowed width of printed circuit board (PCB), do not mate with the length of the antenna in electric terminal.Usually, Copper Foil can be increased to make ground wire in printed circuit board (PCB) prolongedly in electric terminal, but this can cause the rising of electric terminal development cost.
Summary of the invention
Exemplary embodiment of the present invention is to provide a kind of electric terminal, with the unmatched technical problem of length of the length and antenna that solve the ground wire in the printed circuit board (PCB) in existing electric terminal when not increasing Copper Foil.
According to an exemplary embodiment of the present invention on the one hand, a kind of electric terminal is provided, described electric terminal comprises: display floater, printed circuit board (PCB) and flexible printed circuit board, a part for flexible printed circuit board is positioned at the below of printed circuit board (PCB), one end of flexible printed circuit board is connected to display floater, the other end of flexible printed circuit board is connected to the drive interface of printed circuit board (PCB), with via flexible printed circuit board for display floater provides drive singal, wherein, flexible printed circuit board is positioned at the first Lou Tong district is set with the position at the ground wire place of the part of printed circuit board, the position being positioned at the ground wire place of the part overlapped with flexible printed circuit board on a printed circuit arranges the second Lou Tong district, be electrically connected with the ground wire in flexible printed circuit board to make the ground wire in printed circuit board (PCB).
Alternatively, flexible printed circuit board is positioned at can to refer to flexible printed circuit board with the ground wire of the part of printed circuit board cover copper, be positioned on a printed circuit the part overlapped with flexible printed circuit board ground wire can finger mark printed circuit board cover copper.
Alternatively, first Lou Tong district can be arranged on flexible printed circuit board with the part of printed circuit board near the side of printed circuit board (PCB), the second Lou Tong district can be set up the side of close flexible printed circuit board in the part that overlaps with flexible printed circuit board on a printed circuit.
Alternatively, described electric terminal can also comprise: electric conducting material, and described electric conducting material is arranged between the first Lou Tong district and the second Lou Tong district, is electrically connected via described electric conducting material to make the copper that covers of printed circuit board (PCB) with the copper that covers of flexible printed circuit board.
Alternatively, the electric conducting material be arranged between the first Lou Tong district and the second Lou Tong district can be elastic conducting material.
Alternatively, described elastic conducting material can be conductive sponge.
Alternatively, the frame of described display floater can be made up of non-conducting material.
Alternatively, the housing of described electric terminal can be made up of non-conducting material.
Alternatively, printed circuit board (PCB) can be " I " template.
Alternatively, the length of flexible printed circuit board can close to the width of electric terminal.
Adopt above-mentioned electric terminal, using the ground wire of flexible printed circuit board as the ground wire in printed circuit board (PCB) prolongedly, thus the length of the antenna in the length of the ground wire in printed circuit board (PCB) and electric terminal is matched.
Accompanying drawing explanation
Fig. 1 illustrates the schematic diagram of the printed circuit board (PCB) in electric terminal according to an exemplary embodiment of the present invention;
Fig. 2 illustrates the schematic diagram of printed circuit board (PCB) and the flexible printed circuit board position in electric terminal according to an exemplary embodiment of the present invention.
Embodiment
To describe exemplary embodiment of the present invention in detail now, the example of exemplary embodiment of the present invention illustrates in the accompanying drawings.Embodiment is described below with reference to the accompanying drawings to explain the present invention.But the present invention can implement in many different forms, and should not be construed as limited to exemplary embodiment set forth herein.On the contrary, provide these embodiments to make the disclosure to be thoroughly with complete, and these embodiments will convey to those skilled in the art fully scope of the present invention.
In order to clear and for purpose of brevity, may omit the description of parts to unnecessary or element, identical label represents identical element all the time.In the accompanying drawings, for clarity, the size in layer and region and relative size may be exaggerated, the Distance geometry relative distance also may exaggerated between each element.Therefore, accompanying drawing just schematically shows the relative position relation between each element of the present invention, and nonrestrictive.
It should be understood that, when element or layer be referred to as " " another element or layer " on ", or when being referred to as " being connected to " another element or layer, directly on another element or layer or be directly connected to another element or layer, or also can there is intermediary element or intermediate layer in this element or layer.On the contrary, when element be referred to as " directly existing " another element " on " or " being directly connected to " another element or layer time, there is not intermediary element or intermediate layer.As used herein, term "and/or" comprises the combination in any of one or more relevant listed project and all combinations.
Although it should be understood that here can use term first, second etc. different elements, assembly, region, layer and/or part are described, these elements, assembly, region, layer and/or part are by the restriction of these terms.These terms are only used to an element, assembly, region, layer and/or part and another element, assembly, region, layer and/or part to make a distinction.Therefore, when not departing from instruction of the present invention, the first element discussed below, assembly, region, layer or part can be named as the second element, assembly, region, layer or part.
Here can usage space relative terms, as " below ", " in ... below ", " above " etc., be used for describing like a cork the relation of an element or feature and other element or feature as illustrated in the drawing.It should be understood that space relative terms is intended to the device different azimuth in use or operation comprised except the orientation be described in the drawings.Such as, if device is reversed in the accompanying drawings, be then described as other element or feature " below " or " " element of other element or feature " below " will be positioned as subsequently other element or feature " above " or " " element of other element or feature " top " or feature.Therefore, exemplary term " below " can comprise above and two kinds of orientation below.Described device by other location (90-degree rotation or in other orientation), can correspondingly explain space used herein relative descriptors.
A kind of electric terminal is proposed in an exemplary embodiment of the present invention, printed circuit board (PCB) 100 in this electric terminal has the shape shown in Fig. 1, namely, preferably, printed circuit board (PCB) in electric terminal is " I " template, the width of the printed circuit board (PCB) of this shape is narrower, causes the length of the ground wire in printed circuit board (PCB) not mated with the length of the antenna in electric terminal.In addition, the housing of this electric terminal is made up of non-conducting material, and the frame of the display floater of electric terminal is also made up of non-conducting material, that is, the housing of electric terminal and the frame of display floater all cannot provide the electric conducting material that can supply ground connection for printed circuit board (PCB).
The electric terminal for this reason proposed in an exemplary embodiment of the present invention, can the frame of the housing of electric terminal and display floater all cannot for printed circuit board (PCB) provides can under the prerequisite of the electric conducting material of ground connection, in electric terminal, do not increase the Copper Foil of peripheral hardware, using the ground wire of flexible printed circuit board as the ground wire in printed circuit board (PCB) prolongedly, increase the length of the ground wire in printed circuit board (PCB), thus the length of the antenna in the length of the ground wire in printed circuit board (PCB) and electric terminal is matched.
Describe in detail according to an exemplary embodiment of the present invention using the concrete mode that prolongedly (that is, the ground wire of flexible printed circuit board with ground wire in printed circuit board (PCB) be electrically connected) of the ground wire of flexible printed circuit board as the ground wire in printed circuit board (PCB) referring to Fig. 2.
Fig. 2 illustrates the schematic diagram of printed circuit board (PCB) and the flexible printed circuit board position in electric terminal according to an exemplary embodiment of the present invention.
As shown in Figure 2, electric terminal 1 comprises display floater (not shown), printed circuit board (PCB) (pcb board) 100 and flexible printed circuit board (FPC) 200 according to an exemplary embodiment of the present invention.
Particularly, a part for flexible printed circuit board 200 is positioned at the below of printed circuit board (PCB) 100, dash area 300 as shown in Figure 2 is the part that printed circuit board (PCB) 100 overlaps with flexible printed circuit board 200,3 can refer in electric terminal 1 for arranging the region of battery, another part of flexible printed circuit board 200 can be arranged in this for arranging (such as, another part of flexible printed circuit board 200 can be arranged in the below of the battery of electric terminal 1) in the region of battery.One end of flexible printed circuit board 200 is connected to display floater (not shown), the other end of flexible printed circuit board 200 (such as, the link 2 of the flexible printed circuit board 200 shown in Fig. 2) be connected to the drive interface (in Fig. 2, the link 2 of not shown flexible printed circuit board 200 is connected with the drive interface of printed circuit board (PCB) 100) of printed circuit board (PCB) 100, with via flexible printed circuit board 200 for display floater provides drive singal.
The position that flexible printed circuit board 200 is positioned at the ground wire place of the part 300 overlapped with printed circuit board (PCB) 100 arranges the first Lou Tong district, the position that printed circuit board (PCB) 100 is positioned at the ground wire place of the part 300 overlapped with flexible printed circuit board 200 arranges the second Lou Tong district, is electrically connected with the ground wire in flexible printed circuit board 200 to make the ground wire in printed circuit board (PCB) 100.
Such as, can the first Lou Tong district be set on flexible printed circuit board 200, first Lou Tong district is arranged on the interior side near printed circuit board (PCB) 100 of part 300 that flexible printed circuit board 200 overlaps with printed circuit board (PCB) 100, correspondingly, can arrange the second Lou Tong district on printed circuit board (PCB) 100, the second Lou Tong district is arranged on the interior side near flexible printed circuit board 200 of part 300 that flexible printed circuit board 200 overlaps with printed circuit board (PCB) 100.
Exemplarily, (namely the insulating barrier on the surface of the part that flexible printed circuit board 200 overlaps with printed circuit board (PCB) 100 can be removed, the insulating barrier of the position at the ground wire place in the flexible printed circuit board 200 in the part overlapped is removed), with by out exposed for the ground wire in flexible printed circuit board 200, thus form the first Lou Tong district.Correspondingly, (namely the insulating protective layer on the surface of the part that printed circuit board (PCB) 100 overlaps with flexible printed circuit board 200 can be removed, the insulating protective layer of the position at the ground wire place in the printed circuit board (PCB) 100 in the part overlapped is removed), with by out exposed for the ground wire in printed circuit board (PCB) 100, thus form the second Lou Tong district.
Here, flexible printed circuit board is positioned at can to refer to flexible printed circuit board with the ground wire of the part of printed circuit board cover copper, be positioned on a printed circuit the part overlapped with flexible printed circuit board ground wire can finger mark printed circuit board cover copper.That is, can remove on flexible printed circuit board 200 with the insulating barrier covering the position at copper place of the flexible printed circuit board 200 in the part overlapped of printed circuit board (PCB) 100, so that flexible printed circuit board 200 covered that copper is exposed out forms the first Lou Tong district, correspondingly, can remove on printed circuit board (PCB) 100 with the insulating protective layer covering the position at copper place of the printed circuit board (PCB) 100 in the part overlapped of flexible printed circuit board 200, so that printed circuit board (PCB) 100 covered that copper is exposed out forms the second Lou Tong district.
Alternatively, electric terminal can also comprise according to an exemplary embodiment of the present invention: electric conducting material, described electric conducting material can be arranged between the first Lou Tong district and the second Lou Tong district, is electrically connected via described electric conducting material to make the copper that covers of printed circuit board (PCB) 100 with the copper that covers of flexible printed circuit board 200.
Exemplarily, the electric conducting material be arranged between the first Lou Tong district and the second Lou Tong district can be elastic conducting material, this elastic conducting material has good electric conductivity and contact, such as, conductive sponge, is electrically connected with the copper that covers of flexible printed circuit board 200 via conductive sponge to make the copper that covers of printed circuit board (PCB) 100.
As can be seen from the example shown in Fig. 2, the length of flexible printed circuit board 200 can close to the width of electric terminal 1 (such as, the difference of the length of flexible printed circuit board 200 and the width of electric terminal 1 is in preset range), like this by flexible printed circuit board 200 cover copper and printed circuit board (PCB) 100 cover after copper is electrically connected, be equivalent to the length adding ground wire in printed circuit board (PCB) 100, now, the length of the ground wire of printed circuit board (PCB) 100 close to the antenna in electric terminal 1 1/4 high frequency wavelength (such as, the length of the ground wire of printed circuit board (PCB) 100 and the difference of 1/4 high frequency wavelength are in preset range).
Find out by table 1 and table 2 below, do not set up in electric terminal 1 printed circuit board (PCB) 100 prolongedly with the ground wire of the flexible printed circuit board 200 in multiplexing electric terminal 1 as printed circuit board (PCB) 100 ground wire prolongedly time, the passive efficiency relativity of the antenna in electric terminal 1:
Table 1
| Frequency | Efficiency (average) |
| 820～960 | 40.2％ |
| 1710～2170 | 18.1％ |
Table 2
| Frequency | Efficiency (average) |
| 820～960 | 39.4％ |
| 1710～2170 | 42.1％ |
Here, table 1 show do not set up in electric terminal 1 printed circuit board (PCB) 100 prolongedly (namely, do not set up Copper Foil) time, the low frequency signal of the antenna in electric terminal 1 and the passive efficiency of high-frequency signal, the ground wire that table 2 shows the flexible printed circuit board 200 in multiplexing electric terminal 1 as printed circuit board (PCB) 100 ground wire prolongedly time, the low frequency signal of the antenna in electric terminal 1 and the passive efficiency of high-frequency signal.As can be seen from the contrast of table 1 and table 2, by the flexible printed circuit board 200 in electric terminal 1 cover copper and printed circuit board (PCB) 100 cover after copper is electrically connected, effectively can improve the passive efficiency of the high-frequency signal of the antenna in electric terminal 1.
Adopt above-mentioned electric terminal according to an exemplary embodiment of the present invention, can using the ground wire of flexible printed circuit board as the ground wire in printed circuit board (PCB) prolongedly, thus the length of the antenna in the length of the ground wire in printed circuit board (PCB) and electric terminal is matched, that is, the length approximately equal of the antenna in the length of the ground wire in printed circuit board (PCB) and electric terminal (difference of the length of the antenna in the length of the ground wire in finger mark printed circuit board and electric terminal is less than predetermined threshold value) is made.
Describe the present invention in conjunction with concrete exemplary embodiment above, but enforcement of the present invention is not limited thereto.Within the spirit and scope of the present invention, those skilled in the art can carry out various modifications and variations, these amendment and modification by fall into claim restriction protection range within.
Claims (10)
1. an electric terminal, it is characterized in that, described electric terminal comprises: display floater, printed circuit board (PCB) and flexible printed circuit board, a part for flexible printed circuit board is positioned at the below of printed circuit board (PCB), one end of flexible printed circuit board is connected to display floater, the other end of flexible printed circuit board is connected to the drive interface of printed circuit board (PCB), with via flexible printed circuit board for display floater provides drive singal
Wherein, flexible printed circuit board is positioned at the first Lou Tong district is set with the position at the ground wire place of the part of printed circuit board, the position being positioned at the ground wire place of the part overlapped with flexible printed circuit board on a printed circuit arranges the second Lou Tong district, is electrically connected with the ground wire in flexible printed circuit board to make the ground wire in printed circuit board (PCB).
2. electric terminal as claimed in claim 1, it is characterized in that, flexible printed circuit board is positioned to refer to flexible printed circuit board with the ground wire of the part of printed circuit board cover copper, what be positioned at the ground wire finger mark printed circuit board of the part overlapped with flexible printed circuit board on a printed circuit covers copper.
3. electric terminal as claimed in claim 2, it is characterized in that, first Lou Tong district be arranged on flexible printed circuit board with the part of printed circuit board near the side of printed circuit board (PCB), the second Lou Tong district is set up the side of close flexible printed circuit board in the part that overlaps with flexible printed circuit board on a printed circuit.
4. electric terminal as claimed in claim 3, it is characterized in that, described electric terminal also comprises: electric conducting material, and described electric conducting material is arranged between the first Lou Tong district and the second Lou Tong district, is electrically connected via described electric conducting material to make the copper that covers of printed circuit board (PCB) with the copper that covers of flexible printed circuit board.
5. electric terminal as claimed in claim 4, it is characterized in that, the electric conducting material be arranged between the first Lou Tong district and the second Lou Tong district is elastic conducting material.
6. electric terminal as claimed in claim 5, it is characterized in that, described elastic conducting material is conductive sponge.
7. electric terminal as claimed in claim 1, it is characterized in that, the frame of described display floater is made up of non-conducting material.
8. electric terminal as claimed in claim 1, it is characterized in that, the housing of described electric terminal is made up of non-conducting material.
9. electric terminal as claimed in claim 8, it is characterized in that, printed circuit board (PCB) is " I " template.
10. electric terminal as claimed in claim 1, is characterized in that, the length of flexible printed circuit board is close to the width of electric terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013098.3A CN105578726A (en) | 2016-01-06 | 2016-01-06 | Electronic terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013098.3A CN105578726A (en) | 2016-01-06 | 2016-01-06 | Electronic terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105578726A true CN105578726A (en) | 2016-05-11 |
Family
ID=55888231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610013098.3A Pending CN105578726A (en) | 2016-01-06 | 2016-01-06 | Electronic terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105578726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108040491A (en) * | 2015-08-25 | 2018-05-15 | 微软技术许可有限责任公司 | Shielded via display bottom plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5404239A (en) * | 1992-05-20 | 1995-04-04 | Rohm Co., Ltd. | Liquid crystal display with flexible circuit holding driver circuit having notches for engaging curable member |
| CN101322170A (en) * | 2005-12-02 | 2008-12-10 | 株式会社半导体能源研究所 | Display module and electronic device using the same |
| CN105517339A (en) * | 2015-12-31 | 2016-04-20 | 武汉华星光电技术有限公司 | Electronic terminal |
-
2016
- 2016-01-06 CN CN201610013098.3A patent/CN105578726A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5404239A (en) * | 1992-05-20 | 1995-04-04 | Rohm Co., Ltd. | Liquid crystal display with flexible circuit holding driver circuit having notches for engaging curable member |
| CN101322170A (en) * | 2005-12-02 | 2008-12-10 | 株式会社半导体能源研究所 | Display module and electronic device using the same |
| CN105517339A (en) * | 2015-12-31 | 2016-04-20 | 武汉华星光电技术有限公司 | Electronic terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108040491A (en) * | 2015-08-25 | 2018-05-15 | 微软技术许可有限责任公司 | Shielded via display bottom plate |
| CN108040491B (en) * | 2015-08-25 | 2021-03-12 | 微软技术许可有限责任公司 | Shielding via a display backplane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |
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| RJ01 | Rejection of invention patent application after publication |