CN201967250U - Improvement on pad structure of PCB (printed circuit board) - Google Patents
Improvement on pad structure of PCB (printed circuit board) Download PDFInfo
- Publication number
- CN201967250U CN201967250U CN2011200058199U CN201120005819U CN201967250U CN 201967250 U CN201967250 U CN 201967250U CN 2011200058199 U CN2011200058199 U CN 2011200058199U CN 201120005819 U CN201120005819 U CN 201120005819U CN 201967250 U CN201967250 U CN 201967250U
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- CN
- China
- Prior art keywords
- pcb
- pcb board
- circuit board
- printed circuit
- board body
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an improvement on a pad structure of a PCB (printed circuit board), which relates to a PCB, in particular to a pad structure of a PCB (printed circuit board). The pad structure of the PCB (printed circuit board) comprises a body and a plurality of mounting seats used for mounting LED (light-emitting diode) chips; each mounting seat comprises an anode pad and a cathode pad; the body of the PCB (printed circuit board) is a long strip structure; the plurality of mounting seats are uniformly arranged on the body of the PCB (printed circuit board) in a straight line; the straight line on which the plurality of mounting seats are located is parallel with the long strip body of the PCB (printed circuit board); one end of the body of the PCB (printed circuit board) is the head end of the body of the PCB (printed circuit board); the other end of the body of the PCB (printed circuit board) is the tail end of the body of the PCB (printed circuit board); and the distance from the head end of the body of the PCB (printed circuit board) to the mounting seat closest to the head end of the body of the PCB (printed circuit board) is not equal to the distance from the tail end of the body of the PCB (printed circuit board) to the mounting seat closest to the tail end of the body of the PCB (printed circuit board). The pad structure of the PCB (printed circuit board) has the beneficial effects that: the phenomenon of uneven lightening of an overall backlight when the overall LED (light-emitting diode) chips on the body of the PCB (printed circuit board) are not centered relative to mounting slots of the LED (light-emitting diode) chips on light guide plates is solved.
Description
Technical field
The utility model relates to pcb board, relates in particular to the pcb board pad configuration.
Background technology
At present, the led chip that is arranged on the pcb board is not placed in the middle, cause entire backlight source non-uniform light, when this situation occurring, because it is that pcb board is set uniformly that pcb board is used to weld the pad of led chip, and the termination equal in length at the pad distance P CB two ends at two ends on the pcb board causes us to come mobile pcb board to reach the middle position that all LD chips is in light guide plate by integral body.
The utility model content
The utility model is at the deficiencies in the prior art, aim to provide a kind of PCB structure of improvement, the position of pad on the pcb board is moved, make that the distance of the pad that the distance P CB plate two ends, termination at pcb board two ends are nearest is unequal, like this, when finding that led chip can not be in the led chip mounting groove middle position of light guide plate under regular situation, we can pass through whole mobile pcb board, make that the led chip mounting groove of the relative light guide plate of led chip on the pcb board is placed in the middle.
The utility model is achieved through the following technical solutions: the improvement of pcb board pad structure, comprise pcb board body and some mount pads that is used to install led chip, each mount pad comprises a positive terminal pad and a negative terminal pad, described pcb board body is a strip structure, described some mount pads are straight line and are evenly distributed on the pcb board body, and the straight line parallel at described some mount pads place is in the pcb board body of strip structure; Pcb board body one end is a pcb board body head end, the pcb board body other end is a pcb board body tail end, and pcb board body head end is unequal to the distance of the nearest mount pad of close pcb board body tail end with pcb board body tail end to the distance near the nearest mount pad of pcb board body head end.
Below above technical scheme is further elaborated:
Pcb board body head end is 2.51mm to the distance near the nearest mount pad of pcb board body head end, and pcb board body tail end is 1.91mm to the distance near the nearest mount pad of pcb board body tail end.
The beneficial effects of the utility model are: in the structure of the present utility model, pcb board body one end is a pcb board body head end, the pcb board body other end is a pcb board body tail end, pcb board body head end is unequal to the distance of the nearest mount pad of close pcb board body tail end with pcb board body tail end to the distance near the nearest mount pad of pcb board body head end, like this, when we find that the mounting groove of led chip is not placed in the middle on the relative light guide plate of mounted LEDs chip on the pcb board body, we can move the pcb board body relative to light guide plate, make led chip be in the middle position of led chip mounting groove on the light guide plate, so just solved the phenomenon of the whole non-uniform light of backlight when led chip mounting groove integral body is not placed in the middle on the relative light guide plate of led chip on the pcb board body.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
Among the figure: 1, pcb board body; 2, positive terminal pad; 3, negative terminal pad; 4, pcb board body head end; 5, pcb board body tail end.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further:
With reference to shown in Figure 1, the improvement of a kind of pcb board pad structure that the utility model discloses comprises pcb board body 1 and eight mount pads that are used to install led chip, each mount pad comprises a positive terminal pad 2 and a negative terminal pad 3, pcb board body 1 is a strip structure, eight mount pads are straight line and are evenly distributed on the pcb board body 1, and the straight line parallel at eight mount pad places is in the pcb board body 1 of strip structure; Pcb board body 1 one ends are pcb board body head end 4, pcb board body 1 other end is a pcb board body tail end 5, pcb board body head end 4 is 2.51mm to the distance near the nearest mount pad of pcb board body head end 4, and pcb board body tail end 5 is 1.91mm to the distance of the nearest mount pad of close pcb board body tail end 5.
In the specific implementation, in the structure of the present utility model, pcb board body 1 one ends are pcb board body head end 4, pcb board body 1 other end is a pcb board body tail end 5, pcb board body head end 4 near the distance of the nearest mount pad of pcb board body head end 4 and pcb board body tail end 5 to unequal near the distance of the nearest mount pad of pcb board body tail end 5, like this, when we find that the mounting groove of led chip is not placed in the middle on the relative light guide plate of mounted LEDs chip on the pcb board body 1, we can move pcb board body 1 relative to light guide plate, make led chip be in the middle position of led chip mounting groove on the light guide plate, so just solved the phenomenon of the whole non-uniform light of backlight when led chip mounting groove integral body is not placed in the middle on the relative light guide plate of led chip on the pcb board body 1.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to also should fall in the protection range of claim of the present utility model modifications and changes more of the present utility model.In addition, although used some specific terms in this specification, these terms do not constitute any restriction to the utility model just for convenience of description.
Claims (2)
1.PCB the improvement of plate pad structure, comprise pcb board body and some mount pads that is used to install led chip, each mount pad comprises a positive terminal pad and a negative terminal pad, it is characterized in that: described pcb board body is a strip structure, described some mount pads are straight line and are evenly distributed on the pcb board body, and the straight line parallel at described some mount pads place is in the pcb board body of strip structure; Pcb board body one end is a pcb board body head end, the pcb board body other end is a pcb board body tail end, and pcb board body head end is unequal to the distance of the nearest mount pad of close pcb board body tail end with pcb board body tail end to the distance near the nearest mount pad of pcb board body head end.
2. the improvement of pcb board pad structure according to claim 1, it is characterized in that: pcb board body head end is 2.51mm to the distance near the nearest mount pad of pcb board body head end, and pcb board body tail end is 1.91mm to the distance near the nearest mount pad of pcb board body tail end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200058199U CN201967250U (en) | 2011-01-10 | 2011-01-10 | Improvement on pad structure of PCB (printed circuit board) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200058199U CN201967250U (en) | 2011-01-10 | 2011-01-10 | Improvement on pad structure of PCB (printed circuit board) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201967250U true CN201967250U (en) | 2011-09-07 |
Family
ID=44529802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200058199U Expired - Fee Related CN201967250U (en) | 2011-01-10 | 2011-01-10 | Improvement on pad structure of PCB (printed circuit board) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201967250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093681A (en) * | 2015-09-01 | 2015-11-25 | 北京京东方茶谷电子有限公司 | Backlight module and liquid crystal display device |
-
2011
- 2011-01-10 CN CN2011200058199U patent/CN201967250U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093681A (en) * | 2015-09-01 | 2015-11-25 | 北京京东方茶谷电子有限公司 | Backlight module and liquid crystal display device |
| WO2017036100A1 (en) * | 2015-09-01 | 2017-03-09 | 京东方科技集团股份有限公司 | Backlight module and liquid crystal display device |
| CN105093681B (en) * | 2015-09-01 | 2019-02-12 | 北京京东方茶谷电子有限公司 | A kind of backlight module and liquid crystal display device |
| US10591665B2 (en) | 2015-09-01 | 2020-03-17 | Boe Technology Group Co., Ltd. | Backlight module and liquid crystal display device |
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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: 20110907 Termination date: 20150110 |
|
| EXPY | Termination of patent right or utility model |