CN212625624U - Wide lamp strip of double-colored flip-chip - Google Patents
Wide lamp strip of double-colored flip-chip Download PDFInfo
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- CN212625624U CN212625624U CN202020110770.2U CN202020110770U CN212625624U CN 212625624 U CN212625624 U CN 212625624U CN 202020110770 U CN202020110770 U CN 202020110770U CN 212625624 U CN212625624 U CN 212625624U
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- Prior art keywords
- narrow
- light
- wide
- light bar
- glue
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- 239000003292 glue Substances 0.000 claims abstract description 81
- 238000003466 welding Methods 0.000 claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims abstract description 20
- 238000005520 cutting process Methods 0.000 claims abstract description 18
- 239000003086 colorant Substances 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims description 35
- 230000001070 adhesive effect Effects 0.000 claims description 35
- 238000004806 packaging method and process Methods 0.000 claims description 31
- 239000002390 adhesive tape Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 13
- 239000000843 powder Substances 0.000 description 8
- 229910000679 solder Inorganic materials 0.000 description 8
- 238000005538 encapsulation Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 239000002356 single layer Substances 0.000 description 5
- 238000005476 soldering Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The utility model relates to a double-color inverted wide lamp strip, in particular to a module formed by welding an inverted LED chip or welding the inverted LED chip and a control element on a conjoined circuit board containing a plurality of flexible circuit boards, dividing the module into two groups, respectively applying two kinds of glue on the module to seal the surface of the inverted LED chip and the control element and the circuit board, respectively cutting into two groups of narrow lamp strips, alternately arranging the two groups of narrow lamp strips, welding the narrow lamp strips on welding spots of the conjoined flat cable containing a plurality of flat cables, or alternately arranging the two groups of narrow lamp strips, gluing the narrow lamp strips on the conjoined flat cable containing a plurality of flat cables, welding the narrow lamp strips again, wherein the width of each flat cable is larger than that of the lamp strips, applying light blocking glue at the gap of the adjacent lamp strips, cutting into single inverted wide lamp strips, cutting the inverted wide lamp strips, and arranging two narrow lamp strips emitting two colors in parallel at each section, each section is provided with three light-blocking glues in parallel arrangement, and the middle light bar separates the light bars with two colors.
Description
Technical Field
The utility model relates to a LED lamp strip field, concretely relates to wide lamp strip of double-colored flip-chip.
Background
The double-colored lamp strip of flip-chip of prior art directly welds two lines of flip-chip LED chips on the wide line board, then glues the point with two kinds of encapsulation that do not flow and form two lines of different luminous adhesive tapes on two lines of flip-chip LED chips, and two lights of sending out different colours seal the part position of flip-chip LED chip and seal the circuit board, and prior art has following problem:
1. when the flip LED chip is attached to the wide circuit board by the die bonder, the number of flip LED chips per unit area is small, so that the efficiency of die bonding and flip LED chip attachment is too low.
2. The packaging glue is not flowed by a glue dispenser, the glue is not uniformly dispensed in a line, so that the light emitting color of each position of each glue is inconsistent, and the packaging glue dispensing efficiency of the glue dispenser is too low.
3. The circuit board is too wide, and the circuit board does not make waterproof glue, and firstly the outward appearance is pleasing to the eye, and secondly is not waterproof, even make waterproof glue, also single glue dripping preparation, and the preparation is inefficient, can't make light tight glue in both sides moreover.
4. There is not the glue that is in the light between two adhesive tapes that send out different colours light, leads to the colour of mutual interference, and when the luminous gluey luminescence of single strip of independent lighting, light passes a neighbouring glue that does not light, makes the colour change, leads to the light colour on whole lamp strip both sides inconsistent.
In order to overcome the defects and shortcomings, the utility model discloses can solve with following method:
1. the integrated circuit board containing the multiple narrow light bar circuit boards is used for welding the inverted LED chip on the circuit board, the inverted LED chip in unit area on the circuit board is doubled, and the efficiency of the die bonder for fixing the inverted LED chip is improved.
2. The packaging glue is high-flowing glue, when the glue is sealed, the whole plate is placed on the horizontal platform, a certain amount of packaging glue is poured on the surface of the whole plate, the packaging glue naturally levels, the thickness of the formed glue layer is uniform at all positions, the efficiency is high, and the color is uniform when the glue layer is lightened.
3. The light-blocking and waterproof LED lamp is divided into narrow lamp strips after being packaged, then the narrow lamp strips are assembled on the connected wide row line, then light-blocking and waterproof glue is applied to the gap between the two narrow lamp strips, the narrow lamp strips are cut into single strips after being sealed, the production efficiency of the connecting plate is high, the appearance grade is high, and the light-blocking glue is arranged between the two bicolor light-emitting strips, so that the interference is avoided during light emission.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a double-color inverted wide lamp strip, in particular to a module formed by welding an inverted LED chip or welding the inverted LED chip and a control element on a conjoined circuit board containing a plurality of flexible circuit boards, dividing the module into two groups, respectively applying two kinds of glue on the module to seal the surface of the inverted LED chip and the control element and the circuit board, respectively cutting into two groups of narrow lamp strips, alternately arranging the two groups of narrow lamp strips, welding the narrow lamp strips on welding spots of the conjoined flat cable containing a plurality of flat cables, or alternately arranging the two groups of narrow lamp strips, gluing the narrow lamp strips on the conjoined flat cable containing a plurality of flat cables, welding the narrow lamp strips again, wherein the width of each flat cable is larger than that of the lamp strips, applying light blocking glue at the gap of the adjacent lamp strips, cutting into single inverted wide lamp strips, cutting the inverted wide lamp strips, and arranging two narrow lamp strips emitting two colors in parallel at each section, each section is provided with three light-blocking glues in parallel arrangement, and the middle light bar separates the light bars with two colors.
According to the utility model provides a wide lamp strip of double-colored flip-chip, include: a narrow circuit board; the LED chip is inverted or the LED chip and the control element are inverted; two kinds of packaging glue; wide flat cables; light blocking glue; the LED light bar is characterized in that an LED chip or the LED chip and a control element are inversely mounted and welded on two narrow circuit boards, two kinds of packaging glue are respectively sealed on the two narrow circuit boards, the packaging glue is used for sealing the LED chip or the LED chip and the control element, the two narrow circuit boards are arranged in parallel and welded on a wide row wire, or the two narrow circuit boards are arranged in parallel and are welded on the wide row wire and the wide row wire by glue, three light-blocking glue are provided, two sides of the LED wide light bar are respectively provided with a light-blocking glue, the middle of the wide light bar is provided with a light-blocking glue for separating two light bars with different colors, the light-blocking glue is stuck on the row wire, the circuit boards and the packaging glue, two side surfaces of two sides of the wide light bar close to the edges and two side surfaces of the row wire are respectively on the same cutter surface in the lengthwise direction of the wide light bar, and two narrow light bars emitting different lights on the wide light bar are respectively lightened when the LED light bar is electrified, or to simultaneously illuminate two narrow light bars emitting different lights.
According to the utility model also provides a wide lamp strip of double-colored flip-chip, include: a narrow circuit board; the LED chip is inverted or the LED chip and the control element are inverted; two kinds of packaging glue; wide flat cables; light blocking glue; the LED packaging structure is characterized in that a plurality of narrow light bars are formed by welding an LED flip chip or the LED flip chip and a control element on a plurality of narrow circuit boards, packaging adhesives are two types of packaging adhesives which are respectively sealed on two groups of narrow circuit boards and the LED flip chip, or two types of packaging adhesives are respectively sealed on two groups of narrow circuit boards, the LED flip chip and the control element, two groups of narrow light bars emitting two colors of light when being electrified are formed, the two narrow light bars emitting different colors of light are arranged in parallel to form a pair, and after being arranged end to end, the narrow light bars are directly welded on a wide flat cable, or are welded on a wide flat cable by using adhesives, three pieces of light blocking adhesives are arranged on the wide flat cable, two sides of the wide light bar are respectively provided with a light blocking adhesive, a light blocking adhesive is arranged in the middle of the wide light bar to separate the two narrow light bars, and two sides of the wide light bar in the length direction of the dual-color LED, two side faces close to the edges of the two light blocking adhesives on the wide light bar and two side faces of the flat cable are respectively arranged on the same cutting tool face, the flat cable, the narrow circuit board and the packaging adhesive are adhered together by the light blocking adhesives, and when the light blocking adhesives are powered on, the narrow light bars emitting two lights on the wide light bar are respectively lightened, or all the narrow light bars emitting two lights are lightened simultaneously.
According to the utility model discloses a preferred embodiment, a wide lamp strip of double-colored flip-chip, a serial communication port, narrow lamp strip weld on the winding displacement, when having the encapsulation to glue on the connection solder joint that narrow lamp strip and winding displacement are connected, the encapsulation of solder joint department is that after narrow lamp strip welded the winding displacement, the encapsulation of adding again glues.
According to the utility model discloses a preferred embodiment, a wide lamp strip of double-colored flip-chip, a serial communication port, two sides of the long direction of narrow lamp strip, two sides of narrow circuit board and two sides of encapsulation glue are respectively on same cutter face.
According to the utility model discloses a preferred embodiment, a wide lamp strip of double-colored flip-chip, a serial communication port, narrow lamp strip weld on the winding displacement, when having the encapsulation to glue on the connection solder joint that narrow lamp strip and winding displacement are connected, except in connection solder joint department two sides of the long direction of narrow lamp strip, two sides of narrow circuit board and two sides of encapsulation glue are respectively on same knife face of cutting.
According to the utility model discloses a preferred embodiment, a wide lamp strip of double-colored flip-chip, a characterized in that the lamp strip back paste the double faced adhesive tape, in the length direction of lamp strip, two sides of winding displacement and two sides of double faced adhesive tape are respectively on same knife face of cutting.
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 reading of the specification in conjunction with the following drawings, a brief description of which follows.
Fig. 1 is a schematic plan view of a connected narrow light bar of a double-layer circuit board containing fluorescent powder glue.
Fig. 2 is a schematic plan view of a single narrow light bar of a double-layer circuit board containing phosphor glue.
Fig. 3 is a schematic cross-sectional view of a single narrow light bar of a double-layer circuit board containing phosphor paste.
Fig. 4 is a schematic plan view of the connected narrow light bar of the single-layer circuit board containing the phosphor glue.
Fig. 5 is a schematic plan view of a single narrow light bar of a single layer circuit board containing phosphor paste.
Fig. 6 is a schematic cross-sectional view of a single narrow light bar of a single layer circuit board containing phosphor paste.
Fig. 7 is a schematic plan view of a conjoined long and wide flat cable.
Fig. 8 is a schematic plan view of a single-segment assembled one-piece wide light bar.
Fig. 9 is a schematic cross-sectional view of a single-segment assembled one-piece wide light bar.
Fig. 10 is a schematic plan view of the narrow light bars arranged end to end.
Fig. 11 is a schematic cross-sectional view of a narrow light bar assembled end to end.
Fig. 12 is a schematic cross-sectional view of a one-piece wide light bar including a light blocking glue.
Fig. 13 is a schematic cross-sectional view of a single wide light bar of a double-color opaque adhesive flip-chip LED chip.
Fig. 14 is a schematic cross-sectional view of a flip-chip LED chip wide light bar with integral double-color opaque adhesive containing double-sided adhesive.
Fig. 15 is a schematic cross-sectional view of a single strip of double-color opaque adhesive flip-chip LED chip wide light bar including double-sided adhesive.
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.
Examples
1. Manufacture of single narrow light bar
The method comprises the steps of using a circuit board 1.1 containing connected double-layer circuits of a plurality of narrow circuit boards, arranging a connecting pad 1.1a at each bottom layer of the plurality of connected double-layer circuit boards, fixing an inverted LED chip and a small resistor on the circuit board by using tin paste, firmly welding the inverted LED chip and the small resistor by using reflow soldering, dividing the inverted LED chip into two groups, respectively arranging the two groups of double-layer circuit boards on a horizontal platform, respectively arranging a circle of the circuit board on the periphery of the circuit board by using adhesive tapes, respectively weighing two kinds of glue 2.2 (fluorescent powder A glue 2.2a and fluorescent powder B glue 2.2B) containing different fluorescent powders by using a certain weight, respectively pouring the glue on the surface of the circuit board, naturally flowing and leveling, naturally placing and cutting the two groups of double-layer circuit boards after solidification.
Or a plurality of single-layer circuit boards 2.1 containing a plurality of connected single-layer circuit boards are used, the LED chips and the small resistors are fixed on the circuit boards by using tin paste, the circuit boards are firmly welded by reflow soldering, and then are divided into two groups which are respectively arranged on a horizontal platform, a circle of the circuit boards is encircled by a rubber belt, two kinds of pre-prepared fluorescent powder glue 2.2 (fluorescent powder A glue 2.2a and fluorescent powder B glue 2.2B) with certain weight are weighed, respectively poured on the surfaces of the circuit boards, naturally flow and level, after naturally placed and solidified, the two ends of the back of the circuit board are glued 2.1B, then the positions of the pads at the two ends are reversely folded to the back for gluing firmly, so that the back forms connecting pads 2.1a, and single narrow lamp strips (shown in figures 4, 5 and 6) of the two groups.
2. Manufacturing of long and wide flat cable
And (3) clamping and adhering a plurality of wires to one layer of PET film with glue and the other layer of PET film with glue to prepare a connected wide flat cable, and then cutting off the thin film and the glue by using a laser machine to expose welding points 3.1a to prepare a connected long wide flat cable 3.1 (shown in figure 7) for later use.
3. Assembled into a wide light bar
3.1 Single-stage Assembly
Solder paste is printed on welding spots of the connected wide flat cable, two groups of narrow light bars are alternately arranged one by one and are attached to the flat cable in an alignment mode, meanwhile, the soldering iron is heated to enable two ends to be welded on the flat cable, or the solder paste is printed on the flat cable, after double-faced adhesive tape 4.1 is attached to the back face of each narrow light bar, the two groups of narrow light bars are alternately arranged one by one and are attached to the flat cable in an alignment mode, and then the two ends are heated by the soldering iron to enable the bottom welding spots 2.1a of the short light bars and the welding spots 3.1a of the wide flat cable to be welded together 5.1 (shown in figures 8 and 9).
3.2, the narrow lamp strips are arranged end to end for assembly
One section of solder paste is printed on the connected long and wide flat cable, two groups of narrow lamp strips are alternately arranged in a row and a row, and the two rows are arranged end to end and heated by a soldering iron, so that the two ends of each strip are welded on the long and wide flat cable. Or the solder paste is printed on the long and wide row lines, after the double-sided adhesive tape 4.1 is pasted on the back surface of each narrow light bar, the two groups of narrow light bars are alternately arranged in rows, and the multiple rows of narrow light bars are arranged end to end in a row and pasted on the long and wide row lines, so that the bottom pads 2.1a of the short light bars and the welding points 3.1a of the wide row lines are welded together 5.1 (shown in fig. 10 and 11).
4. Light-blocking glue
And (3) dripping white light-tight glue 6.1 by a glue dripping machine at the gap of the narrow light bar to cover the flat cable with a layer of white glue, wherein the white glue is also adhered to the side surfaces of the fluorescent powder glue and the circuit board glue, and naturally drying and curing to obtain the integrated wide light bar (shown in figure 12) containing the light-blocking glue.
5. Cut single strip
5.1, directly cutting single strips
The conjoined wide light bar containing the light blocking glue is directly cut into single bars to be made into a single wide light bar of the inverted LED chip with double-color light-tight glue (shown in figure 13).
5.2 sticking double-sided adhesive tape and cutting the single strip
And (3) pasting a double-faced adhesive tape 4.1 on the back surface of the connected wide light bar containing the light-blocking adhesive, and then cutting the wide light bar into a single flip LED chip wide light bar (shown in fig. 14 and 15) containing a double-faced adhesive tape and double-colored light-tight adhesive.
The present invention has been described in detail with reference to the accompanying drawings. It will be understood by those skilled in the art, however, that the foregoing is illustrative and descriptive of some specific embodiments only, and not limiting as to the scope of the invention, and particularly the scope of the claims.
Claims (6)
1. A wide lamp strip of double-colored flip-chip includes:
a narrow circuit board;
the LED chip is inverted or the LED chip and the control element are inverted;
two kinds of packaging glue;
wide flat cables;
light blocking glue;
the LED light bar is characterized in that an LED chip or the LED chip and a control element are inversely mounted and welded on two narrow circuit boards, two kinds of packaging glue are respectively sealed on the two narrow circuit boards, the packaging glue is used for sealing the LED chip or the LED chip and the control element, the two narrow circuit boards are arranged in parallel and welded on a wide row wire, or the two narrow circuit boards are arranged in parallel and are welded on the wide row wire and the wide row wire by glue, three light-blocking glue are provided, two sides of the LED wide light bar are respectively provided with a light-blocking glue, the middle of the wide light bar is provided with a light-blocking glue for separating two light bars with different colors, the light-blocking glue is stuck on the row wire, the circuit boards and the packaging glue, two side surfaces of two sides of the wide light bar close to the edges and two side surfaces of the row wire are respectively on the same cutter surface in the lengthwise direction of the wide light bar, and two narrow light bars emitting different lights on the wide light bar are respectively lightened when the LED light bar is electrified, or to simultaneously illuminate two narrow light bars emitting different lights.
2. A wide lamp strip of double-colored flip-chip includes:
a narrow circuit board;
the LED chip is inverted or the LED chip and the control element are inverted;
two kinds of packaging glue;
wide flat cables;
light blocking glue;
the LED packaging structure is characterized in that a plurality of narrow light bars are formed by welding an LED flip chip or the LED flip chip and a control element on a plurality of narrow circuit boards, packaging adhesives are two types of packaging adhesives which are respectively sealed on two groups of narrow circuit boards and the LED flip chip, or two types of packaging adhesives are respectively sealed on two groups of narrow circuit boards, the LED flip chip and the control element, two groups of narrow light bars emitting two colors of light when being electrified are formed, the two narrow light bars emitting different colors of light are arranged in parallel to form a pair, and after being arranged end to end, the narrow light bars are directly welded on a wide flat cable, or are welded on a wide flat cable by using adhesives, three pieces of light blocking adhesives are arranged on the wide flat cable, two sides of the wide light bar are respectively provided with a light blocking adhesive, a light blocking adhesive is arranged in the middle of the wide light bar to separate the two narrow light bars, and two sides of the wide light bar in the length direction of the dual-color LED, two side faces close to the edges of the two light blocking adhesives on the wide light bar and two side faces of the flat cable are respectively arranged on the same cutting tool face, the flat cable, the narrow circuit board and the packaging adhesive are adhered together by the light blocking adhesives, and when the light blocking adhesives are powered on, the narrow light bars emitting two lights on the wide light bar are respectively lightened, or all the narrow light bars emitting two lights are lightened simultaneously.
3. The wide double-color flip-chip light bar of claim 1 or 2, wherein the narrow light bar is welded on the flat cable, and when the connecting welding spot where the narrow light bar is connected with the flat cable is provided with the packaging adhesive, the packaging adhesive at the welding spot is the packaging adhesive which is added after the narrow light bar is welded on the flat cable.
4. The wide double-color flip-chip light bar of claim 1 or 2, wherein two side surfaces of the narrow light bar in the longitudinal direction, two side surfaces of the narrow circuit board and two side surfaces of the packaging adhesive are respectively on the same cutting surface.
5. The wide double-color flip-chip light bar of claim 3, wherein the narrow light bar is welded on the flat cable, and when the connection welding points of the narrow light bar and the flat cable are provided with the packaging adhesive, the two side surfaces of the narrow light bar except the connection welding points in the longitudinal direction, the two side surfaces of the narrow circuit board and the two side surfaces of the packaging adhesive are respectively arranged on the same cutting surface.
6. The wide double-color flip-chip light bar of claim 1 or 2, wherein a double-sided adhesive tape is attached to the back of the light bar, and two side surfaces of the flat cable and two side surfaces of the double-sided adhesive tape are respectively located on the same cutting surface in the longitudinal direction of the light bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020110770.2U CN212625624U (en) | 2020-01-12 | 2020-01-12 | Wide lamp strip of double-colored flip-chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020110770.2U CN212625624U (en) | 2020-01-12 | 2020-01-12 | Wide lamp strip of double-colored flip-chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212625624U true CN212625624U (en) | 2021-02-26 |
Family
ID=74727539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020110770.2U Expired - Fee Related CN212625624U (en) | 2020-01-12 | 2020-01-12 | Wide lamp strip of double-colored flip-chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212625624U (en) |
-
2020
- 2020-01-12 CN CN202020110770.2U patent/CN212625624U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |