CN112483922A - Closed LED lamp strip manufactured by light-transmitting adhesive film and manufacturing method thereof - Google Patents
Closed LED lamp strip manufactured by light-transmitting adhesive film and manufacturing method thereof Download PDFInfo
- Publication number
- CN112483922A CN112483922A CN201910813263.7A CN201910813263A CN112483922A CN 112483922 A CN112483922 A CN 112483922A CN 201910813263 A CN201910813263 A CN 201910813263A CN 112483922 A CN112483922 A CN 112483922A
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- Prior art keywords
- light
- circuit board
- lamp
- lamp strip
- transmitting
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S4/00—Lighting devices or systems using a string or strip of light sources
- F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
- F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
- F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Led Device Packages (AREA)
Abstract
The invention relates to a closed LED lamp belt made of a light-transmitting adhesive film and a manufacturing method thereof, in particular to a single-sided or double-sided circuit board, a component containing an LED lamp is pasted and welded on the front side of the circuit board by an SMT process, coating a light-transmitting adhesive on the light-transmitting film, preparing the coated light-transmitting film into a light-transmitting film containing a plurality of cups by adopting a plastic suction or injection molding mode, then, the light-transmitting film cups are downwards attached to the surfaces of the circuit board elements in an aligned mode, each element is covered with a cup, the cup is cut into single strips by a cutting machine to manufacture a closed LED lamp strip manufactured by a single light-transmitting film, the closed LED lamp strip manufactured by the light-transmitting film is manufactured, the closed LED lamp strip replaces the LED lamp strip in the current industry to be waterproof by glue dripping, waterproof by encapsulation, and the LED lamp strip sheathing pipe is waterproof, the material cost is low, and a plurality of lamp strip jointed boards are manufactured together, so that the production efficiency is greatly improved.
Description
Technical Field
The invention relates to the field of circuit boards, in particular to a closed LED lamp strip manufactured by a light-transmitting adhesive film and a manufacturing method thereof.
Background
At present, waterproof LED lamp belts in the industry are generally waterproof by adopting the following two modes, firstly, glue is dripped on a front cover film of a single LED lamp belt circuit board and welded components to form a thick glue layer which is much higher than the components, the glue consumption of the method is large, high-temperature-resistant expensive PI needs to be pasted on the front of the lamp belt circuit board to be used as the cover film, a protection circuit is not easy to break, the material cost is high, and the single operation production efficiency is low.
The other method is to adopt a mode of rubber coating or casing tube to prevent water for the single LED lamp strip, the method also has the advantages that the circuit board of the lamp strip can be protected from being broken only by using a high-temperature-resistant expensive PI as a covering film, the material cost of the rubber coating or casing tube is high, and the production efficiency of single operation is low.
In order to overcome the defects and the defects, the LED lamp strip circuit board is made into the solder mask ink circuit board with the front surface being cheap, a whole-plate cap cover which is manufactured by plastic suction or injection molding through a light-transmitting film with light-transmitting glue is adhered to the surface of the lamp strip circuit board on which an LED element is welded, the cap cover is covered on the element corresponding to the position of the element, then the cap cover is pressed by a hot press, the cap cover film is tightly and firmly adhered on the circuit board, then the LED lamp strip is cut into single strips, and the closed LED lamp strip which is manufactured by the light-transmitting glue film is used for replacing the LED lamp strip glue dripping and water proofing in the current industry, the LED lamp strip is coated with glue and water proofing, and the LED lamp strip is sheathed with a sleeve for water proofing.
Disclosure of Invention
The invention relates to a closed LED lamp belt made of a light-transmitting adhesive film and a manufacturing method thereof, in particular to a single-sided or double-sided circuit board, a component containing an LED lamp is pasted and welded on the front side of the circuit board by an SMT process, coating a light-transmitting adhesive on the light-transmitting film, preparing the coated light-transmitting film into a light-transmitting film containing a plurality of cups by adopting a plastic suction or injection molding mode, then, the light-transmitting film cups are downwards attached to the surfaces of the circuit board elements in an aligned mode, each element is covered with a cup, the cup is cut into single strips by a cutting machine to manufacture a closed LED lamp strip manufactured by a single light-transmitting film, the closed LED lamp strip manufactured by the light-transmitting film is manufactured, the closed LED lamp strip replaces the LED lamp strip in the current industry to be waterproof by glue dripping, waterproof by encapsulation, and the LED lamp strip sheathing pipe is waterproof, the material cost is low, and a plurality of lamp strip jointed boards are manufactured together, so that the production efficiency is greatly improved.
The invention provides a method for manufacturing a closed LED lamp strip made of a light-transmitting adhesive film, which comprises the steps of manufacturing a single-sided or double-sided circuit board, wherein the circuit board is a connected circuit board formed by connecting a plurality of independent lamp strip circuit boards together, welding components including LED lamps on the front surface of the circuit board by using an SMT (surface mount technology) process to manufacture a plurality of connected bare lamp strips connected into a whole, coating light-transmitting adhesive on a light-transmitting film, manufacturing a connected light-transmitting film cover cup plate containing a plurality of cups by adopting a plastic suction or injection molding mode, then pasting the connected light-transmitting film cover cup plate containing a plurality of light-transmitting film cups on the element surface of the connected bare lamp strip in a downward alignment manner, covering the template on the cover cup plate by using a designed and manufactured template, enabling the template to cover the template, enabling each cup to be aligned into a template hole, and then using a flat plate hot press to firmly adhere the adhesive on the cup plate to the circuit board, the template protects the cups from stress during hot pressing, the cups are prevented from stress deformation during hot pressing, the cups are covered on each element (but not limited to each element), the connected lamp strip with the cups is manufactured, the connected lamp strip is cut into single lamp strips by a cutting machine, the positions, needing to be cut and disconnected, of the connected lamp strip are cut by a time-division cutter, the circuit board and the light-transmitting film are simultaneously cut and disconnected, the cut lamp strips face the longitudinal side surfaces (in the length direction), and the side surfaces of each side circuit board and the side surface of the light-transmitting film are cut and formed on one cutter surface.
The invention provides a closed LED lamp strip made of a light-transmitting adhesive film, which comprises: a single-sided or double-sided lamp strip circuit board; an element layer including an LED soldered on the lamp strip circuit board; a light-transmitting film layer with a cup and a light-transmitting glue; a metal connection point; it is characterized by that the lamp band circuit board is designed into a plurality of periodic identical circuits, several periodic circuits are formed together to form long lamp band circuit board, the components welded on every period of lamp band are identical, said lamp band is a long lamp band formed from several periodic short lamp bands, between every period a shearing position is set, and can be sheared at any shearing position and can be used alone, and beside every shearing position a metal connecting point is set, said metal connecting point can be used for interconnection between lamp bands or for connecting power supply of lamp band, and the metal connecting point is placed on the back surface of circuit board and/or on the front circuit metal of circuit board, and the light-transmitting film and circuit board are firmly stuck together by means of light-transmitting glue, and on the lamp band a light-transmitting film with several cups is set, and on the elements all the light-transmitting film cups are set, or on the elements and on the metal connecting points (but not limited to elements and metal connecting points) the light-transmitting films are set, the light-transmitting film with the light-transmitting glue is adhered to the lamp strip, so that the lamp strip becomes an LED (light-emitting diode) closed lamp strip, each lamp strip is a single lamp strip formed by cutting a plurality of connected lamp strips into sections, and the side faces of the circuit board and the side face of the light-transmitting film of each side face are on the same cutting tool face on the side faces of two sides of the lamp strip facing to the longitudinal direction (the longitudinal direction).
According to a preferred embodiment of the present invention, the closed LED strip is characterized in that the transparent adhesive is a thermosetting transparent adhesive or a hot-melt transparent adhesive.
According to a preferred embodiment of the present invention, the closed LED strip is characterized in that the light-transmitting film is made of PET, PVC, PC, PE, PP, or PU.
According to a preferred embodiment of the present invention, the closed LED strip is characterized in that the transparent film is a colorless and transparent film, a colored film, or a translucent and foggy film.
According to a preferred embodiment of the present invention, the closed LED strip is characterized in that when there are metal connection points on the front circuit, the metal connection points are front metal connection pads, and solder resists are disposed on the edges of the connection pads.
According to a preferred embodiment of the present invention, the closed LED strip made of the transparent adhesive film is characterized in that a layer of double-sided adhesive tape is added on the back of the LED strip, and the two side surfaces of the LED strip, the side surface of the strip circuit board, the side surface of the transparent adhesive film and the side surface of the double-sided adhesive tape are all on the same cutting surface.
The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below.
Drawings
The features, objects, and advantages of the present invention will become more apparent from the description set forth below when taken in conjunction with the drawings, a brief description of which follows.
Fig. 1 is a schematic plan view of an LED strip circuit board.
Fig. 2 is a schematic plan view of an LED lamp on a circuit board of the LED lamp strip after the LED lamp is welded.
Fig. 3 is a schematic cross-sectional view of an LED lamp soldered on a circuit board of the LED lamp strip.
Fig. 4 is a schematic three-dimensional view of an LED lamp soldered on a circuit board of the LED lamp strip.
Fig. 5 is a schematic plan view of a plurality of caps with one convex surface and the other concave surface formed by plastic-suction molding with a light-transmitting film with light-transmitting glue.
FIG. 6 is a schematic cross-sectional view of a plurality of caps with one convex surface and the other concave surface formed by plastic-suction molding with a transparent film with transparent glue.
Fig. 7 is a schematic perspective view of a plurality of caps with one convex surface and the other concave surface formed by plastic-suction molding with a light-transmitting film with light-transmitting glue.
Fig. 8 is a schematic three-dimensional view of alignment and attachment of the blister-formed cap and the lamp strip circuit board welded with the element.
Fig. 9 is a schematic cross-sectional view of the blister formed cap and the single-sided lamp strip circuit board welded with the components after aligned and attached together.
Fig. 10 is a schematic cross-sectional view of the blister-formed cap and the double-sided tape circuit board with the components soldered thereon aligned and attached together.
Fig. 11 is a schematic cross-sectional view of the two-sided tape circuit board welded with the component and the cap formed by vacuum forming at the position of the metal connection point after the cap and the circuit board are aligned and attached together.
Fig. 12 is a schematic cross-sectional view of the cut waterproof LED strip at two cut-out locations.
Fig. 13 is a schematic perspective view of a cut-out single waterproof LED strip.
Detailed Description
The present invention will be described in detail below by taking preferred embodiments as examples.
It will be understood by those skilled in the art that the following descriptions are provided for purposes of illustration and description of certain preferred embodiments only and are not intended to limit the scope of the present invention.
The LED lamp strip circuit board 1 is manufactured by adopting a traditional circuit board manufacturing process, namely, a flexible copper clad plate is subjected to processes of silk-screen circuit anti-corrosion ink, baking and curing, etching, film stripping, silk-screen front ink solder mask 1.3, element bonding pads 1.1 and metal connecting points 1.2 exposure, baking, character, baking and curing, OSP anti-oxidation surface treatment and the like (as shown in figures 1 and 9), wherein the lamp strip circuit board 1 shown in figure 1 is a single-sided lamp strip circuit board 1a or a double-sided lamp strip circuit board 1 b.
Or drilling, copper deposition, copper plating, dry film pasting, scene exposure and display, etching, film stripping, silk-screen printing of front ink solder mask 1.3 to expose element bonding pads 1.1 and metal connection points 1.2, baking, silk-screen printing of back ink solder mask, baking, character baking, OSP anti-oxidation surface treatment and other processes are carried out on the double-sided flexible copper-clad plate to manufacture the LED lamp strip circuit board 1 (as shown in figures 1 and 10), wherein the lamp strip circuit board 1 shown in figure 1 is a single-sided lamp strip circuit board 1a or a double-sided lamp strip circuit board 1 b.
The method comprises the steps of printing solder paste on an element bonding pad 1.1 of a lamp strip circuit board 1 by using a steel mesh on a solder paste printing machine by adopting a traditional SMT (surface mount technology), correspondingly mounting LED lamp beads 2.1 and resistors 2.2 on the bonding pad 1.1 printed with the solder paste, welding EED lamp beads 2.1 and the resistors 2.2 on the lamp strip circuit board 1 through reflow soldering, and manufacturing a plurality of spliced plates connected together to form the bare lamp strip welded with an LED lamp (shown in figures 2, 3 and 4).
The transparent film 3 coated with the transparent glue 3.2 is subjected to plastic-sucking molding processing on a plastic-sucking machine by using a plastic-sucking mold, and a plurality of caps 3.1 with one convex surface and the other concave surface are manufactured (as shown in fig. 5, 6 and 7).
On a bare lamp strip with a plurality of jointed boards connected together, wherein an LED lamp 2.1 and a resistor 2.2 are welded on the bare lamp strip, a cap cover 3.1 of a light-transmitting film 3 is attached to a lamp strip circuit board 1 in an alignment way corresponding to the LED lamp 2.1 and the resistor 2.2 (as shown in figures 8, 9 and 10), wherein figure 9 is a plane schematic diagram of the cap cover formed by plastic suction and a single-sided lamp strip circuit board welded with elements after being attached in an alignment way, figure 10 is a plane schematic diagram of the cap cover formed by plastic suction and a double-sided lamp strip circuit board welded with elements after being attached in an alignment way, then a hot press is used for pressing, so that the light-transmitting film 3 containing a plurality of cap covers 3.1 is tightly and firmly attached to the circuit board 1 to form a plurality of connected LED closed lamp strips, a solder mask 1.3 (as shown in figure 11) is arranged at the position of a metal connecting point 1.2, and then the plurality of connected LED closed lamp strips are cut into, a single piece of sealed LED strip made of transparent adhesive film (see fig. 12 and 13) is produced, and on the two side surfaces of the strip facing the longitudinal direction (longitudinal direction), i.e. the side surfaces 1.4a and 1.4b, the side surface of the strip circuit board 1 and the side surface of the transparent film 3 of each side surface are on the same cutting tool surface (see fig. 12).
Or the double-sided adhesive tape can be adhered to the back surfaces of a plurality of connected LED closed type lamp strips, and then the LED closed type lamp strips are cut into single strips to be manufactured into single strips of light-transmitting adhesive films, wherein the two side surfaces of the LED lamp strips, the side surface of the lamp strip circuit board, the side surface of the light-transmitting film and the side surface of the double-sided adhesive tape are arranged on the same cutting surface.
The invention sticks the whole plate cap cover made by plastic suction or injection molding through the light transmission film with the light transmission glue on which surface of the lamp belt circuit board the LED element is welded, the cap cover covers the element corresponding to the position of the element, then the cap cover film is pressed by a hot press to stick the cap cover film on the circuit board tightly and firmly, the adhesive is solidified by heating, then the cap cover film is cut into single lamp belts, the manufactured closed LED lamp belt replaces the LED lamp belt rubber coating waterproof in the current industry, the LED lamp belt rubber coating waterproof and the LED lamp belt sleeve waterproof are waterproof, the material cost is low, and a plurality of lamp belt jointed plates are manufactured together, thereby greatly improving the production efficiency.
The present invention is described in detail with reference to the accompanying drawings by using a specific embodiment of the closed LED strip made of the transparent adhesive film. It will be understood by those skilled in the art, however, that the foregoing is merely illustrative and descriptive of some specific embodiments and is not to be construed as limiting the scope of the invention, especially the scope of the claims.
Claims (7)
1. A method for manufacturing a closed LED lamp strip made of a light-transmitting adhesive film comprises manufacturing a single-sided or double-sided circuit board, wherein the circuit board is a connected circuit board formed by connecting a plurality of independent lamp strip circuit boards together, welding components including LED lamps on the front surface of the circuit board by an SMT (surface mount technology) process to manufacture a plurality of connected bare lamp strips connected into a whole, coating light-transmitting adhesive on a light-transmitting film, manufacturing a connected light-transmitting film cover cup plate containing a plurality of cups by adopting a plastic suction or injection molding mode, then covering the light-transmitting film cover cup plate with the light-transmitting film cover cup plate containing a plurality of light-transmitting film cups, downwards aligning and adhering the light-transmitting film cover cup plate on the component surface of the connected bare lamp strip, designing a manufactured template, wherein the template is provided with a plurality of holes, covering the template on the cover cup plate, aligning each cup into a template hole, and then hot-pressing by a flat hot press to firmly adhere the adhesive on the cup, the template protects the cups from stress during hot pressing, the cups are prevented from stress deformation during hot pressing, the cups are covered on each element (but not limited to each element), the connected lamp strip with the cups is manufactured, the connected lamp strip is cut into single lamp strips by a cutting machine, the positions, needing to be cut and disconnected, of the connected lamp strip are cut by a time-division cutter, the circuit board and the light-transmitting film are simultaneously cut and disconnected, the cut lamp strips face the longitudinal side surfaces (in the length direction), and the side surfaces of each side circuit board and the side surface of the light-transmitting film are cut and formed on one cutter surface.
2. A closed LED lamp area of printing opacity glued membrane preparation includes:
a single-sided or double-sided lamp strip circuit board;
an element layer including an LED soldered on the lamp strip circuit board;
a light-transmitting film layer with a cup and a light-transmitting glue;
a metal connection point;
it is characterized by that the lamp band circuit board is designed into a plurality of periodic identical circuits, several periodic circuits are formed together to form long lamp band circuit board, the components welded on every period of lamp band are identical, said lamp band is a long lamp band formed from several periodic short lamp bands, between every period a shearing position is set, and can be sheared at any shearing position and can be used alone, and beside every shearing position a metal connecting point is set, said metal connecting point can be used for interconnection between lamp bands or for connecting power supply of lamp band, and the metal connecting point is placed on the back surface of circuit board and/or on the front circuit metal of circuit board, and the light-transmitting film and circuit board are firmly stuck together by means of light-transmitting glue, and on the lamp band a light-transmitting film with several cups is set, and on the elements all the light-transmitting film cups are set, or on the elements and on the metal connecting points (but not limited to elements and metal connecting points) the light-transmitting films are set, the light-transmitting film with the light-transmitting glue is adhered to the lamp strip, so that the lamp strip becomes an LED (light-emitting diode) closed lamp strip, each lamp strip is a single lamp strip formed by cutting a plurality of connected lamp strips into sections, and the side faces of the circuit board and the side face of the light-transmitting film of each side face are on the same cutting tool face on the side faces of two sides of the lamp strip facing to the longitudinal direction (the longitudinal direction).
3. The enclosed LED strip as claimed in claim 1 or 2, wherein the transparent adhesive is a thermosetting transparent adhesive or a hot-melt transparent adhesive.
4. The enclosed LED strip of claim 1 or 2, wherein the light-transmissive film is made of PET, PVC, PC, PE, PP or PU.
5. The enclosed LED strip as claimed in claim 4, wherein the transparent film is colorless transparent, colored, or translucent and foggy.
6. The enclosed LED strip of claim 1 or 2, wherein when there are metal connection points on the front circuit, the metal connection points are front metal connection pads, and solder masks are provided on the edges of the connection pads.
7. The enclosed LED strip of claim 1 or 2, wherein a double-sided tape is applied to the back of the LED strip, and the two sides of the LED strip, the side of the circuit board of the strip, the side of the transparent film and the side of the double-sided tape are on the same cutting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910813263.7A CN112483922A (en) | 2019-08-24 | 2019-08-24 | Closed LED lamp strip manufactured by light-transmitting adhesive film and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910813263.7A CN112483922A (en) | 2019-08-24 | 2019-08-24 | Closed LED lamp strip manufactured by light-transmitting adhesive film and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112483922A true CN112483922A (en) | 2021-03-12 |
Family
ID=74920310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910813263.7A Withdrawn CN112483922A (en) | 2019-08-24 | 2019-08-24 | Closed LED lamp strip manufactured by light-transmitting adhesive film and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112483922A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080026498A1 (en) * | 2006-07-31 | 2008-01-31 | Eric Tarsa | Light emitting diode package element with internal meniscus for bubble free lens placement |
| CN103094268A (en) * | 2011-11-04 | 2013-05-08 | 杭州华普永明光电股份有限公司 | Light-emitting diode (LED) module used for commercial lighting and manufacturing method thereof |
| CN103994356A (en) * | 2014-04-26 | 2014-08-20 | 王定锋 | Slitting method for LED lamp band with combined jointed boards and integrated adhesive glue board and LED lamp band |
| CN110021586A (en) * | 2018-01-09 | 2019-07-16 | 王定锋 | A kind of LED lamp bead of wiring board and preparation method thereof |
-
2019
- 2019-08-24 CN CN201910813263.7A patent/CN112483922A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080026498A1 (en) * | 2006-07-31 | 2008-01-31 | Eric Tarsa | Light emitting diode package element with internal meniscus for bubble free lens placement |
| CN103094268A (en) * | 2011-11-04 | 2013-05-08 | 杭州华普永明光电股份有限公司 | Light-emitting diode (LED) module used for commercial lighting and manufacturing method thereof |
| CN103994356A (en) * | 2014-04-26 | 2014-08-20 | 王定锋 | Slitting method for LED lamp band with combined jointed boards and integrated adhesive glue board and LED lamp band |
| CN110021586A (en) * | 2018-01-09 | 2019-07-16 | 王定锋 | A kind of LED lamp bead of wiring board and preparation method thereof |
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Application publication date: 20210312 |
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| WW01 | Invention patent application withdrawn after publication |