CN212107918U - Double-sided luminous flexible LED lamp panel - Google Patents
Double-sided luminous flexible LED lamp panel Download PDFInfo
- Publication number
- CN212107918U CN212107918U CN202020836929.9U CN202020836929U CN212107918U CN 212107918 U CN212107918 U CN 212107918U CN 202020836929 U CN202020836929 U CN 202020836929U CN 212107918 U CN212107918 U CN 212107918U
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- Prior art keywords
- circuit board
- sided
- flexible circuit
- double
- board
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- 239000002356 single layer Substances 0.000 claims abstract description 19
- 239000003292 glue Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 4
- 229920003023 plastic Polymers 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims abstract description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 238000009713 electroplating Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000004020 luminiscence type Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 14
- 239000013039 cover film Substances 0.000 description 8
- 239000012528 membrane Substances 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000011889 copper foil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The utility model discloses a two-sided luminous flexible LED lamp plate, including a rectangular shape transparent thin slice individual layer board or double sided board flexible circuit board, the even pad of interval has been preset in flexible circuit board's front directly be packaged with LED flip chip on the pad LED flip chip's top covers there is the fluorescence glue film. The transparent thin slice single-layer board or double-sided board flexible circuit board is a thin slice single-layer board or double-sided board flexible circuit board which takes transparent PET plastic as a base material. The utility model discloses a two-sided luminescence of flexible circuit board, and can control to make the colour temperature give off light more evenly, give off light and do not receive the restriction of light-emitting angle, can 360 degrees luminous and show, more do benefit to and show or decorative effect, can satisfy the needs that show or decorate better, just the utility model discloses water-proof effects is better, has shortened production flow, has improved production efficiency, more environmental protection.
Description
Technical Field
The utility model relates to a show and decorate lighting device, especially a two-sided luminous flexible LED lamp plate.
Background
The flexible circuit board can be provided with a patch type LED on the flexible circuit board to manufacture a light-emitting unit, and the light-emitting unit is spliced to be assembled into display screen panels or decorative lamp strips with different shapes and sizes. Therefore, there is a need to design a new double-sided flexible LED lamp panel to overcome the above disadvantages.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a double-sided luminous flexible LED lamp plate which can better meet the requirements of display or exhibition or decoration, and has the advantages that the front and back sides of a circuit board can both emit light, are not limited by the luminous angle, can emit light and display by 360 degrees, are more favorable for displaying or decorating effects.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a flexible LED lamp plate of two-sided luminous, includes the transparent thin slice single layer board of a rectangular shape or double sided board flexible circuit board, the even pad of interval has been preset in the front of flexible circuit board directly be packaged with LED flip chip on the pad the top of LED flip chip covers and has fluorescence glue film or fluorescence cover membrane, the back of flexible circuit board covers there is the fluorescence cover membrane.
Preferably, a via hole is arranged between the upper surface and the lower surface of the double-sided flexible circuit board, and tin is injected into the via hole through electroplating to electrically connect the circuits on the upper surface and the lower surface.
Preferably, a via hole is formed between the upper and lower surfaces of the double-sided flexible circuit board, and a rivet is arranged in the via hole and electrically connects the circuits on the upper and lower surfaces.
Preferably, the transparent thin sheet single-layer board or double-sided flexible circuit board is a thin sheet single-layer board or double-sided flexible circuit board which takes transparent PET plastic as a base material.
The utility model has the advantages that: the LED flip chip is directly packaged, so that the front side of the single-layer board or double-sided board flexible circuit board is high in light-emitting rate, the back side of the single-layer board or double-sided board flexible circuit board is high in light-emitting rate through the transparent plate, the flip chip can emit light and heat under the condition of applying external voltage and external current, the flexible circuit board is transparent, and under the condition that the back side of the flexible circuit board is not blocked, the flexible circuit board is coated with a covering film insulating layer (namely a fluorescent covering film) containing fluorescent glue, the flexible circuit board can be excited to emit light as well as the front side of the flexible circuit board, so that uniform light emission of controllable color temperature of the front side and the back side is realized, and the front side and the back side of the flexible circuit board are both luminous. Therefore, the utility model discloses the positive and negative of circuit board can both send light, does not receive the restriction of luminous angle, can 360 degrees luminous and demonstration, more does benefit to demonstration or decorative effect, can satisfy the needs that show or decorate better.
In addition, the fluorescent covering film is adhered to the flexible circuit board and the LED chip, the structure solves the waterproof problem, waterproof treatment is not needed, the waterproof effect is better, the production flow is shortened, the production efficiency is improved, multiple pollution of single-point fluorescent glue to the environment is reduced, and the LED fluorescent covering film is more environment-friendly.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic diagram of a planar structure of a bonding pad of a flexible circuit board according to the present invention.
Fig. 2 is a schematic diagram of a planar structure of the flexible circuit board packaged LED flip chip of the present invention.
Fig. 3 is a schematic view of the plane structure of the present invention covered with the fluorescent glue layer.
Fig. 4 is a schematic cross-sectional structure of the via hole of the present invention.
Fig. 5 is a schematic cross-sectional structure diagram of the electroplated and injected tin in the via hole of the present invention.
Fig. 6 is a schematic cross-sectional structure diagram of the conduction of the rivet in the through hole of the present invention.
Fig. 7 is a schematic plan view of the fluorescent cover film of the present invention.
Fig. 8 is a schematic view of the front plane structure of the fluorescent cover film according to the present invention.
Detailed Description
Referring to fig. 1-8, the present invention relates to a double-sided flexible LED lamp panel, which comprises a strip-shaped transparent thin single-layer board or double-layer board flexible circuit board 1, a so-called single-layer board flexible circuit board, which is a proper term in the field and is a known technology in the prior art, that is, a single-layer board structure: the flexible board with the structure is a flexible board with the simplest structure, and is generally formed by rolling and bonding two sheets, wherein one sheet comprises a base material, transparent adhesive and copper foil, and the other sheet comprises a protective film and transparent adhesive, the copper foil is subjected to etching and other process treatments to obtain a required circuit, the protective film is drilled to expose a corresponding bonding pad, the two sheets are bonded by a rolling method after being cleaned, and then the exposed bonding pad part is protected by gold plating, tin and the like, so that a large board is manufactured, and the large board is stamped into a strip-shaped small circuit board to manufacture the single-layer board flexible circuit board, and the double-side board flexible circuit board is also a proper term in the field and is a known technology in the prior art, and the structure of the double-side board is as follows: the double-sided board has pads on both sides, and is mainly used for connection with other circuit boards. Although the structure of the flexible printed circuit board is similar to that of a single-layer board, the manufacturing process is very different, the raw materials of the flexible printed circuit board are copper foil, protective film and transparent adhesive, holes are drilled in the protective film according to the position requirements of bonding pads, the copper foil is attached, bonding pads and leads are corroded, then another protective film with drilled holes is attached, bonding pads 2 with uniform intervals are preset on the front surface of the flexible printed circuit board, LED flip chips 3 are directly packaged on the bonding pads, the LED flip chips are a proper name in the field and are known in the prior art, detailed description is omitted, a fluorescent adhesive layer 4 or a fluorescent covering film 41 is covered above the LED flip chips, the fluorescent covering film 41 is shown in figure 7, the back surface of the flexible printed circuit board is covered with the fluorescent covering film 41, and the fluorescent adhesive layer 4 is covered above each LED flip chip in a single-particle dispensing manner, the type of LED fluorescent glue can be selected according to needs reservation, and the multiple colour temperature can be allowwed out according to actual need in cooperation LED flip chip. The fluorescent cover film 41 head and tail end portion and both sides all with the flexible circuit board parallel and level, fluorescent cover film 41 include glued membrane and phosphor powder granule, phosphor powder granule evenly glue in on the internal surface of glued membrane or evenly distributed in the inside of glued membrane, the internal surface glue of glued membrane is laminated on flexible circuit board and LED chip, like this, can realize that certain phosphor powder covers the homogeneity and the thoroughness nature of a plurality of LED chips to guarantee to arouse the homogeneity of light sum colour mixture, so that the whole luminous colour temperature of flexible LED lamp plate is more even. Moreover, the fluorescent covering film 41 is adhered to the flexible circuit board and the LED chip, the structure solves the waterproof problem, waterproof treatment is not needed, the waterproof effect is better, the production flow is shortened, the production efficiency is improved, and the repeated pollution of single-point fluorescent glue to the environment is reduced.
The principle of double-sided light emission, flip chip can give out light and generate heat under the condition of giving external voltage and external current, and the flexible circuit board is transparent, under the condition that the back surface is not blocked, the flexible circuit board can also excite light emission through an attached layer of cover film insulating layer (namely, fluorescent cover film 41) containing fluorescent glue as well as the front surface of the flexible circuit board, thereby realizing the double-sided light emission, and the fluorescent powder particles of the fluorescent cover film are more uniformly arranged than single particles, the color temperature of the exciting light is more uniform, thereby being capable of controlling the color temperature to emit light more uniformly, therefore, the utility model discloses a LED flip chip is matched with a transparent thin slice single-layer board or a double-panel flexible circuit board, and the fluorescent cover film 41 attached to the back surface of the flexible circuit board, thereby achieving the purpose of double-sided light emission, adopting the display screen or the decorative lamp manufactured by the utility model, the luminous display device is not limited by a luminous angle, can emit light and display by 360 degrees, is particularly suitable for scenes needing 360-degree display such as squares, open fields and the like, is more favorable for display or decoration effect, and can better meet the requirements of display or decoration.
In a preferred embodiment, when a double-sided flexible circuit board is used, a via hole 5 is formed between the upper and lower surfaces of the double-sided flexible circuit board, as shown in fig. 4, and tin 6 is injected into the via hole by electroplating (as shown in fig. 5) to electrically connect the circuits on the upper and lower surfaces. Or in a preferred embodiment, a via hole 5 is provided between the upper and lower surfaces of the double-sided flexible circuit board, and a rivet 7 is provided in the via hole, as shown in fig. 6, the rivet 7 is used to electrically connect the circuits on the upper and lower surfaces. The above two ways can simply realize the electrical connection of the circuit between the upper and lower surfaces of the double-sided flexible circuit board.
The utility model discloses a substrate that rectangular shape transparent thin slice single layer board or double sided board flexible circuit board 1 adopted, preferred embodiment, transparent thin slice single layer board or double sided board flexible circuit board are thin slice single layer board or double sided board flexible circuit board for using transparent PET plastics to be the substrate, and this not only light transmissivity is good, can realize two-sided luminous better, and flexible circuit board's flexibility is good moreover.
Furthermore, the present invention is not limited to the above embodiments, as long as it achieves the technical effects of the present invention by substantially the same means, and all shall belong to the protection scope of the present invention.
Claims (4)
1. The utility model provides a flexible LED lamp plate of two-sided luminous, its characterized in that: the LED flip chip comprises a strip-shaped transparent thin single-layer board or double-sided board flexible circuit board (1), bonding pads (2) with uniform intervals are preset on the front surface of the flexible circuit board, an LED flip chip (3) is directly packaged on the bonding pads, a fluorescent glue layer (4) or a fluorescent covering film (41) covers the LED flip chip, and the fluorescent covering film (41) covers the back surface of the flexible circuit board.
2. The flexible double-sided light-emitting LED lamp panel of claim 1, characterized in that: and a conducting hole (5) is arranged between the upper surface and the lower surface of the double-sided flexible circuit board, and tin (6) is injected into the conducting hole through electroplating to electrically connect the circuits on the upper surface and the lower surface.
3. The flexible double-sided light-emitting LED lamp panel of claim 1, characterized in that: and a via hole (5) is arranged between the upper surface and the lower surface of the double-sided flexible circuit board, a rivet (7) is arranged in the via hole, and the rivet enables the circuits on the upper surface and the lower surface to be electrically connected.
4. The flexible double-sided light-emitting LED lamp panel of claim 1, characterized in that: the transparent thin slice single-layer board or double-sided board flexible circuit board is a thin slice single-layer board or double-sided board flexible circuit board which takes transparent PET plastic as a base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020836929.9U CN212107918U (en) | 2020-05-19 | 2020-05-19 | Double-sided luminous flexible LED lamp panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020836929.9U CN212107918U (en) | 2020-05-19 | 2020-05-19 | Double-sided luminous flexible LED lamp panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212107918U true CN212107918U (en) | 2020-12-08 |
Family
ID=73623337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020836929.9U Active CN212107918U (en) | 2020-05-19 | 2020-05-19 | Double-sided luminous flexible LED lamp panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212107918U (en) |
-
2020
- 2020-05-19 CN CN202020836929.9U patent/CN212107918U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A double-sided luminous flexible LED lamp board Effective date of registration: 20220706 Granted publication date: 20201208 Pledgee: Jiangmen Rural Commercial Bank Co.,Ltd. Jianghai central sub branch Pledgor: Jiangmen Qinyun Circuit Technology Co.,Ltd. Registration number: Y2022980009926 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20240326 Granted publication date: 20201208 |