CN1641417A - Flexible circuit board for liquid crystal display module - Google Patents
Flexible circuit board for liquid crystal display module Download PDFInfo
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- CN1641417A CN1641417A CN 200410000304 CN200410000304A CN1641417A CN 1641417 A CN1641417 A CN 1641417A CN 200410000304 CN200410000304 CN 200410000304 CN 200410000304 A CN200410000304 A CN 200410000304A CN 1641417 A CN1641417 A CN 1641417A
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- flexible pcb
- extension assembly
- length
- external force
- circuit board
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Abstract
This is a kind of flexible circuit panel applied in the liquid crystal display module. By using the idiosyncrasy of the flexible circuit panel itself and the length stretch function of the additive stretching subassembly of the flexible circuit panel when suffering the outside force, we can produce flexible circuit panels meeting the requirement of diversiform different liquid crystal display module to achieve the purpose of producing simplify.
Description
Technical field
The present invention relates to a kind of flexible PCB, and particularly relevant for a kind of flexible PCB that is applied in LCD MODULE.
Background technology
Along with making rapid progress of scientific technological advance, display technique and display have occupied crucial status in the evolution of infotech.Such as the display screen on computing machine, TV, mobile phone, beeper (beeper), personal digital assistant portable devices such as (Personal Digital Assistant, PDA) and all kinds of electronic instrument is all daily life and works is providing a large amount of information.And wherein, LCD (liquid crystal display, LCD) because of have low power consumption, low radiation, save space and picture can distortion etc. advantage, therefore become the major product of current various flat-panel screens.
Please referring to Fig. 1, for using light emitting diode (light Emitting Diode, LED) as the LCD MODULE 10 of light emitting source, it comprises a panel of LCD 110, one LED-backlit source 120, one light source flexible PCB, 130, one flexible circuit panels 140, a connector 150 and a circuit board 160, it is to utilize connector 150 in the mode of circuit board 160 plugs light source flexible PCB 130 and flexible circuit panel 140 to be done combination.But in order to accomplish thin thickness, add the consideration of fiduciary level, another kind of way is light source flexible PCB 130 is connected (Bonding) with flexible circuit panel 140 usefulness or welds (Soldering) and do combination in the mode of circuit board 160, uses the required space of removal connector 150.Please refer to Fig. 2, when light source flexible PCB 130 being combined in circuit board 160 with flexible circuit panel 140 in the mode that connects or weld, then must be earlier an end of light source flexible PCB 130 and flexible circuit panel 140 be connected to backlight 120 and panel of LCD 110 respectively, the other end then with module put the tool (not shown) after carrying out contraposition on the circuit board 160, give accurately combination, be turned to the back side of backlight 120 again, light source flexible PCB 130 overturns as shown in Figure 2 with flexible circuit panel 140, and wherein light source flexible PCB 130 has more a protrusion position than flexible circuit panel 140.In addition, the P.e.c. that is positioned at light source flexible PCB 130 comprises power lead, and in order to provide the LED-backlit source required electric power, the P.e.c. of flexible circuit panel 140 then comprises signal line, in order to provide control panel required signal.Aforesaid backlight 120 be with LED (light emitting diode) as light source, in fact also can use CCFL (cathode fluorescent tube) or other similar luminophor light source as backlight 120.
Because flexible PCB (Flexible Printed Circuit Board, FPC) has pliability, aforesaid light source flexible PCB 130 all is to use flexible PCB with flexible circuit panel 140.Fig. 3 shows that three kinds have identical P.e.c. layout but the different flexible PCB 310,320,330 of length, and it is applied in the LCD MODULE 31,32,33 of different clients or model respectively.Flexible PCB 310,320,330 1 ends are for linking to panel of LCD 312,322,332, and the other end is then for being used for being soldered to the pad (Pad) 314,324,3 34 of circuit board (not shown).Owing to the flexible PCB that needs to make the different length size, cooperate the demand of LCD MODULE design, therefore increased the complexity of material preparation and stock's space requirement.Sometimes because the adjustment a little of welding position on the circuit board causes flexible PCB to redesign, as shown in Figure 4, the flexible PCB 410 that will have the same circuits layout is revised as flexible PCB 420, to cooperate the adjustment of welding position on the circuit board.This kind developed the situation of the flexible PCB of various different designs one by one at the LCD MODULE individual demand, do not meet time and economic benefit really.Therefore, we need a kind ofly have the same circuits layout and the flexible PCB of the plurality of liquid crystals display module of can directly arranging in pairs or groups.
Summary of the invention
It is a kind of applicable to most LCD MODULE that fundamental purpose of the present invention is to provide, and do not need at the flexible PCB of the LCD MODULE of different LCD MODULE design different length and can make after the flexible PCB upset, do not produce the protrusion distance, avoid the waste in space, meet economic benefit.
The technical scheme of flexible PCB that realizes LCD MODULE provided by the present invention is as follows:
A kind of flexible PCB that is used for LCD MODULE comprises:
One the first terminal is connected to a display panels;
One second terminal is connected to a circuit board;
One circuit is positioned on this flexible PCB, is to electrically connect with this display panels and this circuit board;
It is characterized in that:
Be provided with an extension assembly in this flexible PCB, by an external force to extend its length to one first length.
The described flexible PCB that is used for LCD MODULE, it is characterized in that: this extension assembly and this flexible PCB are integrally formed, be linearity region or the turnover zone that is positioned at this flexible PCB, this extension assembly by this external force its length of longitudinal extension or horizontal expansion to this first length, wherein the side geometric configuration of this extension assembly is a continuity, and this geometric configuration is to select from following shape: the combination in any of concavo-convex, zigzag, circular-arc and above-mentioned shape.
A kind ofly comprise an extension assembly and have ductile flexible PCB, it is characterized in that: when this extension assembly is subjected to an external force, extensible its length to one first length of this flexible PCB.
Describedly comprise an extension assembly and have ductile flexible PCB, it is characterized in that: this extension assembly is integrally formed with this flexible PCB, be linearity region or the turnover zone that is positioned at this flexible PCB, this extension assembly by this external force its length of longitudinal extension or horizontal expansion to this first length, wherein the side geometric configuration of this extension assembly is a continuity, and this geometric configuration is to select from following shape: the combination in any of concavo-convex, zigzag, circular-arc and above-mentioned shape.
Describedly comprise an extension assembly and have ductile flexible PCB, it is characterized in that: the material of this flexible PCB is to select from following: macromolecule and polynary ester.
The invention has the advantages that:
The present invention mainly is to provide a kind of flexible PCB that is applied in LCD MODULE, its not only needn't be as known the flexible PCB of the various difformities of design and size to cooperate the demand of multiple different LCD MODULE, and only be the pliability of utilizing flexible PCB itself, directly form required extension assembly when the flexible circuit sheet metal forming, therefore when being subjected to external force, can reach the effect of extension, not only accomplish the production simplification, and its gimmick of reaching is simple and easy, also because of avoiding the time of extra exploitation, and then reduce cost.
For structure of the present invention, feature and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows.Yet except describing in detail, the present invention can also be widely implements at other embodiment, and scope of the present invention do not limited, and is as the criterion with the claim scope.
Description of drawings
What Fig. 1 showed is a kind of LCD (LCD) module diagram of known use connector.
What Fig. 2 showed is that a kind of the use connects or the synoptic diagram of the liquid crystal display device module of welding.
What Fig. 3 showed that three kinds of LCD MODULE cooperate has identical P.e.c. layout but the different flexible PCB synoptic diagram of length.
Fig. 4 is shown as the difference that cooperates welding position on the circuit board, the synoptic diagram that flexible PCB need redesign.
Fig. 5 A, 5B are respectively top view and the side view that first embodiment of the present invention flexible PCB is not subjected to external force.
Fig. 6 A, 6B are respectively top view and the side view that first embodiment of the present invention flexible PCB is subjected to an external force.
Fig. 7 A, 7B are respectively second embodiment of the present invention flexible PCB and are not subjected to external force and the top view that is subjected to an external force.
Fig. 8 A, 8B are respectively third embodiment of the present invention flexible PCB and are not subjected to external force and the top view that is subjected to an external force.
Fig. 9 A, 9B are respectively fourth embodiment of the present invention flexible PCB and do not adjust and adjusted top view.
Figure 10 is the another kind of shape of extension assembly of the present invention.
Embodiment
The material of flexible PCB (soft board) is macromolecule or polynary ester, owing to itself have pliability, be flexible its body to one predetermined extent and do not damage P.e.c. and body on it, therefore main concept of the present invention is the shaped design of partially flexible circuit board is become to have ductile assembly, uses the LCD MODULE design that cooperates the different length demand.The first embodiment of the present invention please refer to shown in Fig. 5 A and Fig. 5 B, and wherein, Fig. 5 A is the top view of flexible PCB 50, and Fig. 5 B then is the side view of Fig. 5 A.This extension assembly 52 be it seems from Fig. 5 B and is promptly presented as wavy (concavo-convex, sawtooth), at this moment, if an end is fixed, after the other end is granted an external force F1 (being meant pulling force at this), flexible PCB 50 is under the prerequisite of not damaging P.e.c. on it and body, to a maximum predetermined length, the state after its elongation is shown in Fig. 6 A and Fig. 6 B with regard to extending, and its longitudinal length then becomes length B (B＞A) by original length A.Therefore, above-mentioned flexible PCB with extension assembly can use needing longitudinal length A to the LCD MODULE between the longitudinal length B, reaches the design that single flexible PCB is applied to the plurality of liquid crystals display module, finishes the demand of oversimplifying of producing.Directly increase by a pressurized, heated processing procedure in the presumptive area of flexible PCB and can form extension assembly 52, be noted that added pressure of this processing procedure and temperature need avoid destroying the circuit of layout on flexible PCB.
The second embodiment of the present invention please refer to shown in Fig. 7 A and Fig. 7 B, and wherein, Fig. 7 A is the top view that flexible PCB 70 is not subjected to external force, and Fig. 7 B then is subjected to the top view of an external force for flexible PCB 70.The extension assembly 72 of present embodiment is the turnover zone that is arranged in flexible PCB 70, at this moment, if an end is fixed, after the other end is granted an external force F2 (being meant pulling force at this), flexible PCB 70 is under the prerequisite of not damaging P.e.c. on it and body, and its lateral length is satisfied by original length C and become D (D＞C).Therefore, above-mentioned flexible PCB with extension assembly can use is needing lateral length C to the LCD MODULE between the lateral length D, satisfies to utilize single flexible PCB but be applied to the design of plurality of liquid crystals display module, finishes the demand of oversimplifying of producing.
In addition, we also can form a plurality of extension assemblies on same flexible PCB, and for the purpose of explanation, only having two extension assemblies 82,84 with a flexible PCB 80 at this is example, and the third embodiment of the present invention is please referring to Fig. 8 A and Fig. 8 B.Wherein, Fig. 8 A is the top view that flexible PCB 80 is not subjected to external force, and Fig. 8 B then is subjected to the top view of an external force for flexible PCB 80.The extension assembly 82 of present embodiment is the turnover zone that is arranged in flexible PCB 80, and another extension assembly 84 is the linearity regions that are arranged in flexible PCB 80, at this moment, if an end is fixed, after the other end is granted external force F3 (being meant pulling force at this), flexible PCB 80 under the prerequisite of not damaging P.e.c. on it and body, its not only lateral length satisfy by original length E and become F (E＞F), and longitudinal length also extends to H (G＞H) from original length G.Therefore, above-mentioned flexible PCB 84 with extension assembly 82,84 can be simultaneously laterally and longitudinal extension, strengthened the scope of application of this flexible PCB.
The fourth embodiment of the present invention is please referring to Fig. 9 A and Fig. 9 B.Wherein, Fig. 9 A is the not controlled top view of flexible PCB 90, and Fig. 9 B then is the controlled top view of flexible PCB 90.Utilize the extension assembly 92,94 of present embodiment, flexible PCB 90 is under the prerequisite of not damaging P.e.c. on it and body, can will be positioned at pad (Pad) 94 transversal displacements one of flexible PCB 90 1 ends apart from I, if welding position is equipped with a little and adjusts on the circuit board, the flexible PCB 90 of present embodiment also need not redesign, can directly cooperate the adjustment of welding position on the circuit board, strengthen the scope of application of this flexible PCB.
In addition, the shape of extension assembly of the present invention is regardless of, zigzag that can be as shown in above-mentioned figure, and circular arc waveform that also can be as shown in figure 10, every general geometric figure as long as can reach the effect of extension, all belongs to the row of the present invention's application, so do not describe in detail one by one at this.Certainly, according to the demand on the actual design, those patterns also can be designed to a plurality of continuous or discrete figures respectively, or the combination of its various patterns.
Even the present invention describes by enumerating a plurality of preferred embodiments, but the present invention is not limited to the embodiment that enumerated.Though the specific embodiment of before enumerating and narrating, apparently, other does not break away under the disclosed spirit, and the equivalence of being finished changes or modifies, and all should be included in the claim of the present invention.In addition, all other do not break away under the disclosed spirit, and other that finished is similar and approximate to be changed or modification, also all is included in the claim of the present invention.Should explain scope of the present invention with the widest definition simultaneously, use and comprise all modifications and similar structures.
Claims (6)
1, a kind of flexible PCB that is used for LCD MODULE comprises:
One the first terminal is connected to a display panels;
One second terminal is connected to a circuit board;
One circuit is positioned on this flexible PCB, is to electrically connect with this display panels and this circuit board; It is characterized in that:
Be provided with an extension assembly in this flexible PCB, by an external force to extend its length to one first length.
2, the flexible PCB that is used for LCD MODULE according to claim 1, it is characterized in that: this extension assembly and this flexible PCB are integrally formed, be linearity region or the turnover zone that is positioned at this flexible PCB, this extension assembly by this external force its length of longitudinal extension or horizontal expansion to this first length, wherein the side geometric configuration of this extension assembly is a continuity, and this geometric configuration is to select from following shape: the combination in any of concavo-convex, zigzag, circular-arc and above-mentioned shape.
3, the flexible PCB that is used for LCD MODULE according to claim 1, it is characterized in that: the material of this flexible PCB is to select from following: macromolecule and polynary ester.
4, a kind ofly comprise an extension assembly and have ductile flexible PCB, it is characterized in that: when this extension assembly is subjected to an external force, extensible its length to one first length of this flexible PCB.
5, according to claim 3ly comprise an extension assembly and have ductile flexible PCB, it is characterized in that: this extension assembly is integrally formed with this flexible PCB, be linearity region or the turnover zone that is positioned at this flexible PCB, this extension assembly by this external force its length of longitudinal extension or horizontal expansion to this first length, wherein the side geometric configuration of this extension assembly is a continuity, and this geometric configuration is to select from following shape: the combination in any of concavo-convex, zigzag, circular-arc and above-mentioned shape.
6, according to claim 3ly comprise an extension assembly and have ductile flexible PCB, it is characterized in that: the material of this flexible PCB is to select from following: macromolecule and polynary ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410000304 CN1641417A (en) | 2004-01-05 | 2004-01-05 | Flexible circuit board for liquid crystal display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410000304 CN1641417A (en) | 2004-01-05 | 2004-01-05 | Flexible circuit board for liquid crystal display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1641417A true CN1641417A (en) | 2005-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410000304 Pending CN1641417A (en) | 2004-01-05 | 2004-01-05 | Flexible circuit board for liquid crystal display module |
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| CN (1) | CN1641417A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066558A (en) * | 2015-04-22 | 2016-11-02 | Nlt科技股份有限公司 | Connect substrate and display device |
| CN116600524A (en) * | 2023-07-11 | 2023-08-15 | 惠科股份有限公司 | Connection mechanism and display device |
-
2004
- 2004-01-05 CN CN 200410000304 patent/CN1641417A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066558A (en) * | 2015-04-22 | 2016-11-02 | Nlt科技股份有限公司 | Connect substrate and display device |
| CN106066558B (en) * | 2015-04-22 | 2021-02-02 | 天马微电子股份有限公司 | Connection substrate and display device |
| CN116600524A (en) * | 2023-07-11 | 2023-08-15 | 惠科股份有限公司 | Connection mechanism and display device |
| CN116600524B (en) * | 2023-07-11 | 2023-11-21 | 惠科股份有限公司 | Connection mechanism and display device |
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