CN115218144A - LED lamp strip adhered with flexible lampshade and manufacturing method - Google Patents
LED lamp strip adhered with flexible lampshade and manufacturing method Download PDFInfo
- Publication number
- CN115218144A CN115218144A CN202110429133.0A CN202110429133A CN115218144A CN 115218144 A CN115218144 A CN 115218144A CN 202110429133 A CN202110429133 A CN 202110429133A CN 115218144 A CN115218144 A CN 115218144A
- Authority
- CN
- China
- Prior art keywords
- flexible
- led
- strip
- lampshade
- lamp
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 9
- 238000004026 adhesive bonding Methods 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 7
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 239000004831 Hot glue Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- F21S4/22—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
- F21S4/24—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape of ribbon or tape form, e.g. LED tapes
-
- 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
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
- F21V19/002—Fastening arrangements intended to retain light sources the fastening means engaging the encapsulation or the packaging of the semiconductor device
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
-
- 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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
- F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to an LED lamp strip adhered with a flexible lampshade and a manufacturing method thereof, in particular to a bare lamp strip manufactured by welding an LED or an LED and a control element by using a flexible circuit board. And extruding the resin by an extruder to prepare a flexible lampshade, and then attaching the flexible lampshade to the bare lamp strip by using an adhesive to prepare the LED lamp strip covered with the flexible lampshade.
Description
Technical Field
The invention relates to the field of LEDs, in particular to an LED lamp strip adhered with a flexible lampshade and a manufacturing method thereof.
Background
The prior art flexible circuit board light strip is divided into the following types:
(1) the naked lamp area, LED and circuit board expose outside and direct use completely that also this kind also can paste the double faced adhesive tape and use at the back, but lamp area that this kind of components and parts all expose outside, the outward appearance is poor, and is dampproofing moreover, and the lamp pearl is wet the necrosis easily.
(2) The LED lamp strip with the adhesive dripped on the surface can be used by sticking a double-sided adhesive on the back surface, but the adhesive dripped mode is that liquid adhesive is dripped on the front surface of the lamp strip, then the liquid adhesive flows to be consistent and then is solidified, and the defects that the consistency after the adhesive flows is poor and the shape and the thickness of each position are difficult to be consistent.
(3) The resin adhesive is directly wrapped around the whole bare lamp strip by an extruder to seal the periphery of the lamp strip, and although the waterproof and moistureproof effects are good, the resin consumption is large and the cost is high! And the flexible PVC resin or the organic silicon resin is generally wrapped at present, and the two materials are not firmly adhered to the two sides!
How to make the 4 th series of lamp strips, namely lamp strip covering, also called half encapsulation. The purpose is that the front adhesive tape is low in cost and high in uniformity, and the back adhesive tape can be pasted on the back face, so that the use is convenient.
We invented the 4 th type of the lamp strip by the following method, and created the 4 th series of the lamp strip, the specific method is as follows:
after welding LEDs or LEDs and control elements by using a flexible circuit board, or welding LEDs or LEDs and control elements and applying fluorescent powder glue again, manufacturing a naked lamp strip, extruding resin by using an extruder to manufacture a flexible lampshade, then gluing the surface of the lamp strip by using an automatic gluing machine, wherein one way is to glue the whole surface of the lamp strip, the other way is to glue the light emitting surface of the LEDs and the light emitting surface of the LEDs on the surface of the lamp strip, then putting the lamp strip and the flexible lampshade into a pasting mold together, accurately aligning the lamp strip and the flexible lampshade, and firmly pasting the lamp strip and the flexible lampshade together by using the glue on the whole surface of the lamp strip to manufacture the LED lamp strip pasted with the flexible lampshade.
Disclosure of Invention
The invention relates to an LED lamp strip adhered with a flexible lampshade and a manufacturing method thereof, in particular to an LED lamp strip covered with a flexible lampshade, which is manufactured into a bare lamp strip by welding an LED or an LED and a control element by a flexible circuit board, extruding resin into a flexible lampshade by an extruder in an extrusion mode, and then adhering the flexible lampshade to the bare lamp strip by an adhesive.
The invention provides a manufacturing method of an LED lamp bead with RGB and white light, and particularly relates to a method for manufacturing an LED lamp bead with RGB and white light, which comprises the steps of welding an LED or an LED and a control element by using a flexible circuit board, or welding the LED or the LED and the control element and applying fluorescent powder glue to the LED or the LED and the control element to manufacture a bare lamp strip, extruding resin by using an extruder to manufacture a flexible lampshade, gluing the flexible lampshade on the surface of the lamp strip by using an automatic gluing machine, wherein the gluing is performed in two modes, namely, gluing the whole surface of the lamp strip, gluing the light emitting surface of the LED on the surface of the lamp strip without the light emitting surface of the LED, and then putting the lamp strip and the flexible lampshade into a pasting mold to accurately align the lamp strip and the flexible lampshade, and firmly pasting the lamp strip and the flexible lampshade together by using the glued glue to manufacture the LED lamp strip and the flexible lampshade.
According to the present invention, there is also provided an LED strip having a flexible cover adhered thereto, comprising: a flexible circuit board; LED or LED and control element; a flexible lamp cover; the LED lamp is characterized in that the LED or the LED and the control element are welded on the flexible circuit board, or the LED and the control element are welded on the flexible circuit board, and the fluorescent powder glue is adhered on the surface of the LED and the surface of the circuit board, one or more grooves are arranged on the flexible lamp cover, the flexible lamp cover is adhered on the surface of the flexible circuit board, on which the LED is welded, through an adhesive, the light emitting surface of the LED is arranged in the groove of the flexible lamp cover, the flexible lamp cover is a flexible lamp cover with the whole body transparent, or a flexible lamp cover with one part transparent and the other part opaque, and after being electrified, the light emitted by the LED penetrates through the transparent body of the flexible lamp cover and then is emitted outwards.
According to a preferred embodiment of the present invention, the LED strip adhered with the flexible lampshade is characterized in that the length of the LED strip is greater than or equal to 2 meters.
According to a preferred embodiment of the present invention, the LED strip adhered with the flexible lampshade is characterized in that the flexible lampshade is a flexible lampshade with a length greater than or equal to 2 meters.
According to a preferred embodiment of the present invention, the LED strip with the flexible lampshade adhered thereon is characterized in that the LEDs are shielded from the front by the opaque resin of the flexible lampshade, and when the flexible circuit board is in a flat state and the strip is viewed from above the flat surface of the flexible circuit board, the LEDs are not visible or the LEDs and the phosphor glue are not visible.
According to a preferred embodiment of the invention, the LED strip adhered with the flexible lampshade is characterized in that the LED is an LED bead with an LED chip packaged on a support, or an LED flip chip.
According to a preferred embodiment of the present invention, the LED strip adhered with the flexible lampshade is characterized in that the LEDs are CSP LED devices.
According to a preferred embodiment of the present invention, the LED strip adhered with the flexible lampshade is characterized in that the average width of the flexible lampshade is greater than or equal to the average width of the flexible circuit board.
According to a preferred embodiment of the present invention, the LED strip adhered with the flexible lampshade is characterized in that a double-sided tape is adhered to the flexible circuit board on the back of the strip.
According to a preferred embodiment of the present invention, the LED strip adhered with the flexible lampshade is characterized in that when the width of the lampshade is larger than the width of the circuit board, light emitted from a light emitting surface of the strip is emitted in three directions.
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 a connecting piece circuit board.
Fig. 2 is a schematic plan view of a connected bare strip.
Fig. 3 is a schematic plan view of a bare lamp strip of 100 meter strip.
Fig. 4 is a schematic plan view of a bare lamp strip of a connected flip chip with multiple phosphor adhesive tapes.
Fig. 5 is a schematic plan view of a single flip-chip bare lamp strip.
Fig. 6 is a perspective view of a flexible light cover.
Fig. 7 is a schematic three-dimensional view of a flexible bi-color PVC lamp housing for a bare strip with a single flip chip.
Fig. 8 is a schematic perspective view of an LED strip with a flexible cover adhered thereto.
Fig. 9 is a schematic cross-sectional view of a LED strip with a flexible cover adhered thereto.
Fig. 10 is a schematic cross-sectional view of a flip-chip LED strip with a flexible cover attached.
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
Production of bare lamp strip
1.1 LED Lamp bead used for manufacturing naked lamp strip
Through a traditional SMT process, the LEDs 1.2 and the resistors 1.3 are welded on the connected circuit board 1.1 through solder paste to form connected bare lamp strips, then the connected bare lamp strips are cut into single bare lamp strips, and the single bare lamp strips are welded into 100 meters to be wound into a reel for later use (shown in figures 1, 2 and 3).
1.2 manufacturing bare lamp strip by using flip chip
On flexible line way board 2.1, with flip-chip blue light chip with solid brilliant machine, paste blue light chip 2.2 and resistance 2.3 on the circuit board pad through the tin cream, cross reflow soldering, make chip and resistance welding on the circuit board, drip phosphor powder glue 2.4, heat and make gluey solidification, make the naked lamp area of the disjunctor flip-chip of many phosphor powder adhesive tapes, then divide the strip with the slitting machine, make the naked lamp area of a list flip-chip spare (shown in fig. 4, fig. 5).
2, manufacturing of flexible lampshade
A double-color PVC extruder is used for putting 3.1 white light-blocking PVC resin particles into a light-blocking resin machine, heating and melting the light-blocking resin particles, putting 3.2 another light-transmitting diffusion resin PVC particles into a light-transmitting resin machine of equipment, heating and melting the light-transmitting resin particles, installing a pre-designed double-color extrusion die on the head of the extruder, starting extrusion processing, extruding a flexible double-color PVC lampshade, cooling the flexible double-color PVC lampshade in a water tank, and winding the flexible lampshade in a reel (shown in figures 6 and 7).
3, assembling flexible lampshade to manufacture LED lamp strip with lampshade
Installing a die cavity on an assembling machine, putting a bare lamp strip into the die cavity, controlling the position, using a hot melt adhesive gun to spray hot melt adhesives 4.1 to two sides of a 26081lamp bead of the bare lamp strip, installing a lampshade on the lamp strip of the die cavity, and rolling a hot pressing roller to enable the lampshade to be adhered to the upper surface of the bare lamp strip to manufacture the LED lamp strip adhered with the flexible lampshade (shown in figures 8, 9 and 10).
The present invention is described in detail with reference to the accompanying drawings by using a specific embodiment of an LED strip adhered with a flexible lampshade and a manufacturing method thereof. 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 (10)
1. A method for manufacturing an LED lamp strip adhered with a flexible lampshade comprises the steps of welding an LED or the LED and a control element by a flexible circuit board, or welding the LED or the LED and the control element and applying fluorescent powder glue, manufacturing a bare lamp strip, extruding resin by an extruder to manufacture the flexible lampshade, gluing the flexible lampshade on the surface of the lamp strip by an automatic gluing machine, wherein gluing is performed in two modes, namely, gluing the whole surface of the lamp strip, gluing an LED light-emitting surface, and gluing the LED light-emitting surface on the surface of the lamp strip without the LED light-emitting surface, and then putting the lamp strip and the flexible lampshade into a pasting mold to accurately align the lamp strip and the flexible lampshade, and firmly gluing the lamp strip and the flexible lampshade together by the gluing to manufacture the LED lamp strip adhered with the flexible lampshade.
2. A LED strip adhered with a flexible lampshade comprises:
a flexible circuit board;
LED or LED and control element;
a flexible lamp cover;
the LED lamp is characterized in that the LED or the LED and the control element are welded on the flexible circuit board, or the LED and the control element are welded on the flexible circuit board, and the fluorescent powder glue is adhered on the surface of the LED and the surface of the circuit board, one or more grooves are arranged on the flexible lamp cover, the flexible lamp cover is adhered on the surface of the flexible circuit board, on which the LED is welded, through an adhesive, the light emitting surface of the LED is arranged in the groove of the flexible lamp cover, the flexible lamp cover is a flexible lamp cover with the whole body transparent, or a flexible lamp cover with one part transparent and the other part opaque, and after being electrified, the light emitted by the LED penetrates through the transparent body of the flexible lamp cover and then is emitted outwards.
3. The LED strip with adhered flexible cover according to claim 1 or 2, wherein said strip is a strip with a length greater than or equal to 2 meters.
4. The LED strip adhered with the flexible lampshade as claimed in claim 1 or 2, wherein the flexible lampshade is a flexible lampshade with a length of 2 m or more.
5. The LED strip with attached flexible cover as claimed in claim 1 or 2, wherein the LEDs are shielded from the front by the opaque resin of the flexible cover, and when the flexible printed circuit board is in a flat state, the LEDs are not visible or the LEDs and the phosphor paste are not visible when the strip is viewed from above perpendicular to the plane of the flexible printed circuit board.
6. The LED lamp strip adhered with the flexible lampshade as claimed in claim 1 or 2, wherein the LED is an LED lamp bead with an LED chip packaged on a support, or an LED flip chip.
7. The LED strip with the flexible lampshade adhered thereon according to claim 1 or 2, wherein the LEDs are CSP LED devices.
8. The LED strip adhered with the flexible lampshade according to claim 1 or 2, wherein the average width of the flexible lampshade is greater than or equal to the average width of the flexible circuit board.
9. The LED light strip adhered with the flexible lampshade according to claim 1 or 2, wherein the flexible circuit board is adhered with a double-sided adhesive tape on the back of the light strip.
10. The LED strip adhered with the flexible lampshade as claimed in claim 1 or 2, wherein when the width of the lampshade is larger than that of the circuit board, the light emitted from the light emitting surface of the strip is emitted in three directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110429133.0A CN115218144A (en) | 2021-04-14 | 2021-04-14 | LED lamp strip adhered with flexible lampshade and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110429133.0A CN115218144A (en) | 2021-04-14 | 2021-04-14 | LED lamp strip adhered with flexible lampshade and manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115218144A true CN115218144A (en) | 2022-10-21 |
Family
ID=83605871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110429133.0A Pending CN115218144A (en) | 2021-04-14 | 2021-04-14 | LED lamp strip adhered with flexible lampshade and manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115218144A (en) |
-
2021
- 2021-04-14 CN CN202110429133.0A patent/CN115218144A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109812721A (en) | A kind of LED light strip and preparation method thereof | |
| WO2021093388A1 (en) | Long light strip having more uniform brightness overall and fabrication method | |
| CN115218144A (en) | LED lamp strip adhered with flexible lampshade and manufacturing method | |
| CN207165566U (en) | A kind of LED light source structure | |
| CN212377817U (en) | Closed LED lamp area | |
| CN113048409A (en) | Wide light bar manufactured by flip LED chip and manufacturing method | |
| CN113054071A (en) | Wide lamp belt manufactured by flip LED chip and manufacturing method | |
| CN112432072A (en) | Closed LED lamp strip and manufacturing method thereof | |
| WO2021073236A1 (en) | Led lamp strip coated with pvc resin and manufacturing method therefor | |
| CN212625624U (en) | Wide lamp strip of double-colored flip-chip | |
| CN112483923A (en) | Waterproof LED lamp strip and manufacturing method thereof | |
| CN211957685U (en) | Flip LED double-color wide lamp belt | |
| CN112151654A (en) | LED lamp bead of glass diffusion cover and manufacturing method thereof | |
| CN112151662A (en) | Circuit board module manufactured by LED lamp beads of glass diffusion cover and manufacturing method thereof | |
| CN211376641U (en) | LED double-color wide lamp strip | |
| CN115013744A (en) | Lamp strip with flexible strip-shaped lens and manufacturing method thereof | |
| CN212377809U (en) | Waterproof LED lamp area | |
| CN115013750A (en) | Lamp strip containing flexible light-transmitting adhesive tape and manufacturing method thereof | |
| CN214119765U (en) | LED lamp strip capable of emitting light from surface decoration light shielding layer | |
| CN211694462U (en) | Built-in IC's flexible lamp area | |
| CN216924092U (en) | Point-like luminous LED lamp strip | |
| CN113013306A (en) | Wide lamp belt manufactured by flip chip and manufacturing method | |
| CN113007626A (en) | Wide light bar manufactured by flip chip and manufacturing method | |
| WO2021227278A1 (en) | Led lamp strip having backside identifier, and manufacturing method therefor | |
| CN212377806U (en) | LED lamp strip with light-transmitting cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Dingfeng Document name: Regard as withdrawal notice |
|
| DD01 | Delivery of document by public notice |