CN204131833U - The backlight FPC of improvement - Google Patents
The backlight FPC of improvement Download PDFInfo
- Publication number
- CN204131833U CN204131833U CN201420564171.2U CN201420564171U CN204131833U CN 204131833 U CN204131833 U CN 204131833U CN 201420564171 U CN201420564171 U CN 201420564171U CN 204131833 U CN204131833 U CN 204131833U
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- CN
- China
- Prior art keywords
- cabling
- backlight
- trunk
- liquid crystal
- crystal display
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- 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.)
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Abstract
The utility model discloses a kind of backlight FPC of improvement, relate to the conductive line structure of Flexible Printed Circuit pad; Be included in line layer and the welding disking area of copper foil base material formation, welding disking area is provided with symmetrical anode bond pad and cathode pad; Anode bond pad and cathode pad comprise a conducting wire unit respectively; Conducting wire unit comprises a trunk cabling and a pole cabling, and the two ends of pole cabling are connected to the two ends formation closed circuit structure of trunk cabling.Its beneficial effect is: backlight and liquid crystal display are fitted, the Flexible Printed Circuit of backlight and/or the Flexible Printed Circuit of liquid crystal display bend, in bending, the binding post of liquid crystal display is separated with the trunk cabling mutual dislocation of backlight, now, the binding post of liquid crystal display also can touch the pole cabling of the conducting wire unit of backlight pad, with this, backlight contacts well with liquid crystal display signal, improves the acceptance rate of product.
Description
Technical field
The utility model relates to circuit board structure technical field; Particularly, the conductive line structure of the pad that base material is formed in Flexible Printed Circuit is related to.
Background technology
Backlight (BackLight) is positioned at liquid crystal display (LCD) a kind of light source behind, and its illumination effect will directly have influence on LCD MODULE (LCM) visual effect.Liquid crystal display itself is not luminous, and its display graphics or character are the results that it is modulated light.
Backlight forms primarily of light source, light guide plate, optics matrix and structural member: in assembling display screen process, the Flexible Printed Circuit of the Flexible Printed Circuit of liquid crystal display and backlight is needed to carry out signal connection, concrete operation is, the binding post of the Flexible Printed Circuit of liquid crystal display is welded on the pad of the Flexible Printed Circuit of backlight, with this, mutual signal connects.
Presently, the circuit of the pad of backlight is a simple strip binding post, time liquid crystal display and backlight are assembled, the Flexible Printed Circuit of liquid crystal display and the Flexible Printed Circuit of backlight need mutually to bend, so, the binding post of backlight pad and the binding post of liquid crystal display easily mutually split and cause signal loose contact in bending process.
Utility model content
The purpose of this utility model be to overcome the pad of backlight flexible circuit board in current LCD assembling process and liquid crystal display binding post mutually come off in bending and cause signal loose contact and the backlight FPC of a kind of improvement provided.
The utility model is achieved through the following technical solutions: a kind of backlight FPC of improvement, comprise copper foil base material, described copper foil base material is formed with line layer and welding disking area, described welding disking area is provided with symmetrical anode bond pad and cathode pad, and the one end portion of described anode bond pad and cathode pad does not stretch out a binding post; Described anode bond pad and described cathode pad comprise a conducting wire unit respectively; Described conducting wire unit comprises a trunk cabling and a pole cabling, the width of described trunk cabling is greater than the width of pole cabling, the length of described pole cabling is greater than the length of trunk cabling, and the two ends of described pole cabling are connected to the two ends formation closed circuit structure of described trunk cabling.
As the preferred mode of one, described trunk cabling is strip structure, and described pole cabling is bow-shaped structural, and the two ends of described arched pole cabling are connected to the closed circuit structure of two ends formation one " mouth " font of trunk cabling.
As the preferred mode of one, described conducting wire unit also comprises a reinforcement cabling, and described reinforcement cabling is list structure, and the width strengthening cabling is identical with the width of trunk cabling; Described reinforcement cabling is horizontally placed in the conducting wire unit of the closed circuit structure of " mouth " font, and one end of described reinforcement cabling is connected to described trunk cabling, and the other end of described reinforcement cabling is connected to described pole cabling.
As the preferred mode of one, the width of described trunk cabling is 2mm-3mm; The width of described pole cabling is 0.6mm-1mm; The width of described reinforcement cabling is 2mm-3mm.
As the preferred mode of one, the width of described trunk cabling is 2.1mm; The width of described pole cabling is 0.7mm; The width of described reinforcement cabling is 2.1mm.
The beneficial effects of the utility model are: the backlight FPC of this structure, the wiring pad of handshaking is carried out as with liquid crystal display, the conducting wire unit of this pad is made up of trunk cabling and pole cabling, the width of trunk cabling is greater than the width of pole cabling, the length of pole cabling is greater than the length of trunk cabling, and the two ends of pole cabling are connected to the two ends formation closed circuit structure of trunk cabling, in LCD assembling process, the binding post of liquid crystal display Flexible Printed Circuit is welded in the pad of backlight flexible circuit board, usually, the binding post of liquid crystal display Flexible Printed Circuit is walked wire bonding with trunk on the pad of backlight flexible circuit board and is contacted, if but, backlight and liquid crystal display are fitted, the Flexible Printed Circuit of backlight and/or the Flexible Printed Circuit of liquid crystal display bend, in bending, the binding post of liquid crystal display is separated with the trunk cabling mutual dislocation of backlight, the binding post of liquid crystal display Flexible Printed Circuit and the trunk cabling of backlight flexible circuit board depart from, now, the binding post of liquid crystal display also can touch the pole cabling of the conducting wire unit of backlight pad, with this, when ensure that LCD assembles, backlight contacts with liquid crystal display signal well, improve the acceptance rate of product.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model backlight;
Fig. 2 is the overall structure schematic diagram of the FPC of the utility model backlight;
Fig. 3 is the partial enlarged drawing in A portion in Fig. 2;
Fig. 4 is the structural representation that the binding post of the utility model liquid crystal display FPC is welded in backlight FPC pad;
Fig. 5 is the partial enlarged drawing in B portion in Fig. 4.
In figure: 100, backlight; 110, backlight PFC; 111, copper foil base material; 112, line layer; 113, welding disking area; 1131, binding post; 1132, trunk cabling; 1133, pole cabling; 1134, cabling is strengthened; 200, liquid crystal display; 210, liquid crystal display FPC; 211, liquid crystal display FPC binding post.
Embodiment
Describe technical scheme of the present invention in detail below with reference to drawings and the specific embodiments, so as clearer, understand invention essence of the present invention intuitively.
Fig. 1 is the structural representation of the utility model backlight part, and with reference to shown in Fig. 1, this part is made up of backlight 100 and backlight FPC110, and backlight FPC110 is electrically connected by the LED lamp bar of connectivity port and backlight 100.
With reference to shown in Fig. 2, backlight FPC110, its copper foil base material 111 makes and is formed with line layer 112 and welding disking area 113, and welding disking area 113 is provided with symmetrical anode bond pad and cathode pad, and the one end portion of anode bond pad and cathode pad does not stretch out a binding post 1131; Anode bond pad and cathode pad are respectively the conducting wire unit being formed at copper foil base material 111 and the tinfoil paper being covered in conducting wire unit composition; With reference to shown in Fig. 3, conducting wire unit comprises trunk cabling 1132 and a pole cabling 1133, and the width of trunk cabling 1132 is 2.1mm; The width of pole cabling 1133 is 0.7mm; Trunk cabling 1132 is strip structure, and pole cabling 1133 is bow-shaped structural, and the two ends of arched pole cabling 1133 is connected to the closed circuit structure that the two ends of trunk cabling 1132 and trunk cabling 1132 are combined to form one " mouth " font.
With reference to shown in Fig. 4, backlight 100 is fitted in the rear of liquid crystal display 200, and the master control circuit of liquid crystal display 200 needs to carry out signal with the control circuit of backlight 100 and is connected, so that carries out signal transmission, complete backlight 100 to be connected with liquid crystal display 200 signal and to be realized by following structure: backlight 100 is provided with backlight FPC110, liquid crystal display 200 is provided with liquid crystal display FPC210, liquid crystal display FPC210 is provided with liquid crystal display FPC binding post 211, when backlight 100 is fitted in liquid crystal display 200 rear portion, liquid crystal display FPC binding post 211 is welded in the conducting wire unit of the welding disking area 113 of backlight FPC110, liquid crystal display FPC binding post 211 has two, be respectively anode connection terminal and cathode connection terminal, the pad of welding disking area 113 also has two, be respectively anode bond pad and cathode pad, the conducting wire unit being welded in the welding disking area 113 of backlight FPC110 by liquid crystal display FPC binding post 211 achieves liquid crystal display 200 be connected with the signal of backlight 100, also achieve liquid crystal display 200 governor circuit to the control of backlight 100, especially to the control of the light emitting source of backlight 100 simultaneously.
With reference to shown in Fig. 4 and Fig. 5, liquid crystal display 200 and backlight 100 realize the specific implementation that signal is connected: liquid crystal display FPC binding post 211 is welded in the trunk cabling 1132 of the pad of backlight FPC110, but, when backlight 100 and liquid crystal display 200 are fitted and are assembled, backlight PFC110 and/or liquid crystal display FPC210 is needed to bend, after bending occurs, slight crack and gap is likely produced between the pad of liquid crystal display FPC binding post 211 and backlight FPC110, cause trunk cabling 1132 mutual dislocation of liquid crystal display FPC binding post 211 and backlight FPC110, generally, now backlight 100 and liquid crystal display 200 can not realize having communicated, but the backlight 100 of this structure, the conducting wire unit of its pad is also provided with pole cabling 1133, pole cabling 1133 and trunk cabling 1132 are combined to form the closed circuit structure of one " mouth " font, if now trunk cabling 1132 mutual dislocation of liquid crystal display FPC binding post 211 and backlight FPC110, liquid crystal display FPC binding post 211 can also carry out being connected with pole cabling 1133 and realizes communicating.
The all right flexible following embodiment of above embodiment, or with reference to shown in Fig. 3, add a reinforcement cabling 1134 at conducting wire unit, strengthening cabling 1134 is list structure, and the width of reinforcement cabling 1134 is 2.1mm; Strengthen cabling 1134 to be horizontally placed in the conducting wire unit of the closed circuit structure of " mouth " font, and the one end strengthening cabling 1134 is connected to trunk cabling 1132, the other end strengthening cabling 1134 is connected to pole cabling 1133; If trunk cabling 1132 mutual dislocation of liquid crystal display FPC binding post 211 and backlight FPC110, liquid crystal display FPC binding post 211 can also carry out being connected with pole cabling 1133 and realizes communicating, and also can carry out being connected with reinforcement cabling 1134 realizing communicating; Strengthen cabling 1134 makes conducting wire unit more firm simultaneously, and when backlight PFC110 bends, pad can not produce slight crack easily.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment when not departing from principle of the present utility model and aim, revising, replacing and modification in scope of the present utility model.
Claims (5)
1. the backlight FPC of an improvement, comprise copper foil base material, described copper foil base material is formed with line layer and welding disking area, and described welding disking area is provided with symmetrical anode bond pad and cathode pad, and the one end portion of described anode bond pad and cathode pad does not stretch out a binding post; Described anode bond pad and described cathode pad comprise a conducting wire unit respectively; It is characterized in that: described conducting wire unit comprises a trunk cabling and a pole cabling, the width of described trunk cabling is greater than the width of pole cabling, the length of described pole cabling is greater than the length of trunk cabling, and the two ends of described pole cabling are connected to the two ends formation closed circuit structure of described trunk cabling.
2. the backlight FPC of improvement according to claim 1, it is characterized in that: described trunk cabling is strip structure, described pole cabling is bow-shaped structural, and the two ends of described arched pole cabling are connected to the closed circuit structure of two ends formation one " mouth " font of trunk cabling.
3. the backlight FPC of improvement according to claim 2, is characterized in that: described conducting wire unit also comprises a reinforcement cabling, and described reinforcement cabling is list structure, and the width strengthening cabling is identical with the width of trunk cabling; Described reinforcement cabling is horizontally placed in the conducting wire unit of the closed circuit structure of " mouth " font, and one end of described reinforcement cabling is connected to described trunk cabling, and the other end of described reinforcement cabling is connected to described pole cabling.
4. the backlight FPC of improvement according to claim 3, is characterized in that: the width of described trunk cabling is 2mm-3mm; The width of described pole cabling is 0.6mm-1mm; The width of described reinforcement cabling is 2mm-3mm.
5. the backlight FPC of improvement according to claim 4, is characterized in that: the width of described trunk cabling is 2.1mm; The width of described pole cabling is 0.7mm; The width of described reinforcement cabling is 2.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420564171.2U CN204131833U (en) | 2014-09-28 | 2014-09-28 | The backlight FPC of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420564171.2U CN204131833U (en) | 2014-09-28 | 2014-09-28 | The backlight FPC of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204131833U true CN204131833U (en) | 2015-01-28 |
Family
ID=52388145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420564171.2U Expired - Fee Related CN204131833U (en) | 2014-09-28 | 2014-09-28 | The backlight FPC of improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204131833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076110A (en) * | 2019-12-05 | 2020-04-28 | 深圳市威尔晟光电有限公司 | Magical color flexible lamp strip with inverted structure |
| CN111076109A (en) * | 2019-11-12 | 2020-04-28 | 深圳市威尔晟光电有限公司 | Color temperature-variable flexible lamp strip with flip LED chip |
-
2014
- 2014-09-28 CN CN201420564171.2U patent/CN204131833U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076109A (en) * | 2019-11-12 | 2020-04-28 | 深圳市威尔晟光电有限公司 | Color temperature-variable flexible lamp strip with flip LED chip |
| CN111076110A (en) * | 2019-12-05 | 2020-04-28 | 深圳市威尔晟光电有限公司 | Magical color flexible lamp strip with inverted structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20180928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |