WO2021036808A1

WO2021036808A1 - Side light-emitting flexible panel lamp and manufacturing method thereof

Info

Publication number: WO2021036808A1
Application number: PCT/CN2020/108993
Authority: WO
Inventors: 王定锋; 徐文红; 冉崇友; 徐磊; 琚生涛
Original assignee: 王定锋
Priority date: 2019-09-01
Filing date: 2020-08-13
Publication date: 2021-03-04
Also published as: CN112443769A

Abstract

Disclosed are a side light-emitting flexible panel lamp and a manufacturing method thereof. The manufacturing method specifically comprises the following steps: a transparent flexible resin is continuously extruded into an elongated light-transmitting plate strip by using a plastic extruder; a roller embossing machine is arranged at an outlet of the extruder, or a printing machine is arranged for printing light guide ink, or a laser engraving machine is arranged behind the extruder to process light guide points (3.1); an elongated flexible light guide plate strip (3) is manufactured; flexible light bars with LED lamp beads (2.1) welded thereto are attached to one side edge or two side edges of the flexible light guide plate strip (3), and the flexible light guide plate strip then enters a double-material extruder to extrude flexible light-transmitting resin (5) with diffusion and light-reflecting resin (4) at the same time; the flexible light guide plate strip (3) with the LED flexible light bars attached thereto is wrapped; the surface of the light-transmitting resin (5) is tightly attached to the surface of the light guide plate strip (3) that emits light to form a light-emitting surface; and light emitted by an LED enters the light guide plate strip (3), and is then evenly emitted from an outer wrapping type flexible light-transmitting resin (5) with diffusion by means of various types of reflection and refraction under the action of the light guide plate strip (3) and the light-reflecting resin (4).

Description

Side-emitting flexible panel lamp and manufacturing method thereof

Technical field

The invention relates to the field of LED lighting, in particular to a side-emitting flexible panel light and a manufacturing method thereof.

Background technique

Traditional LED panel lights are divided into direct light-emitting panel lights and side-emitting panel lights. Direct light-emitting is that the LED light bar is installed on the back of the panel light, and the LED light-emitting surface faces the front and directly hits the diffuser plate of the panel light through the diffuser plate. After the light is diffused, the light is transmitted. This direct type must maintain a long distance between the LED and the diffuser to make the diffused light more uniform. Therefore, the panel lights produced are very thick, bulky, and more The individual components and the shell are assembled with many gaps and cannot be waterproof. They can only be used indoors. They are rigid panel lights and cannot be bent at any position during use.

Another type of side-emitting panel light uses a light guide plate to guide light. The LED strip is on the side of the light guide plate. The light emitted by the LED lamp beads enters the light guide strip, and then is combined with the light guide point and reflective film. After a variety of reflections and refractions, the light is turned to the front and emitted. After the light is emitted from the lamp beads, the overall direction is turned 90 degrees, and then it is emitted outward. This is the principle of the side-emitting lamp. The traditional LED side-emitting panel lights are all It is rigid and is also made of rigid materials. The light guide plate, diffuser plate and housing are all made of rigid materials. Although the light bar is also on the side facing the light guide plate to achieve a thinner volume, it is assembled with rigid materials, resulting in It is not possible to make a very long panel light. At present, it can be made up to 2 meters long, and it is assembled from a variety of structural parts. It cannot be fully enclosed and fully waterproof. It can only be used indoors, and the materials used are mostly rigid materials, which makes it impossible to make it. A panel light that can be bent arbitrarily during use is produced, and due to the assembly of multiple structural parts, the assembly efficiency is low and the assembly cost is high. Moreover, it is not a closed waterproof structure and can only be used indoors.

In order to overcome the above shortcomings and many deficiencies, the panel light becomes flexible, ultra-thin, and ultra-long. It can be bent at will during use, and it can be cut at any set position at any time during production. It can be produced automatically and continuously, and it is a fully enclosed and waterproof panel light.

The present invention completely solves the above problems. A continuous automatic extrusion molding machine is used to continuously extrude the transparent flexible resin into a long light-transmitting strip, and then a light guide point is produced to form a long flexible light guide strip. The light strip plays the role of guiding and evenly distributing the light. A flexible LED light strip is attached to the side of the flexible light guide strip. The flexible light strip is equipped with multiple periodic cutting positions, which can be cut at any cutting position. , Extrude the flexible light-transmitting resin with diffusion and the light-reflecting resin at the same time through a two-material automatic extruder, and wrap the flexible light guide strip with LED flexible light bar, and the surface of the flexible light-transmitting resin with diffusion is close to or glued to The light-emitting surface is formed on the light-emitting surface of the light guide plate. The light emitted by the LED enters the light-guiding plate and is uniformly emitted from the colored light-transmitting resin surface through a variety of reflections and refractions under the action of the light guide plate and the reflective resin. Ultra-long flexible panel light that can be bent arbitrarily, and it is a panel light with a fully waterproof structure, and it is an ultra-thin panel light, and it is a panel light that can be cut arbitrarily at multiple set cutting positions.

Summary of the invention

The invention relates to a side-emitting flexible panel light and a manufacturing method thereof. Specifically, a plastic extruder is used to continuously extrude a transparent flexible resin into a long light-transmitting strip, and a rolling embossing machine is provided at the exit of the extruder. Or install a printer to print light guide ink, or install a laser engraving machine behind the extruder to process the light guide points to make a long flexible light guide strip. The flexible light guide strip is used to guide and evenly distribute the light Function, on one side or two sides of the flexible light guide plate, paste the flexible light bar with LED lamp beads, and then enter the two-material extruder to mix a flexible light-transmitting resin with diffusion and a light-reflecting resin At the same time, it extrudes and wraps the flexible light guide strip with LED flexible light strips. The light-transmitting resin surface is tightly attached to which side of the light guide plate to form a light-emitting surface. The light emitted by the LED enters the light guide strip and is on the light guide plate. And under the action of the reflective resin, after a variety of reflections and refraction, the flexible light-transmitting resin layer diffused from the outer tape is uniformly emitted.

According to the present invention, a method for manufacturing a side-emitting flexible panel light is provided. Specifically, a plastic extruder is used to continuously extrude a flexible resin with high light transmittance into a long light-transmitting strip, and install it at the exit of the extruder. There is a roll embossing machine, which presses the light guide plate into a continuous light guide point, or behind the extruder, is equipped with a printer to print light guide ink to print the light guide point, or is equipped with laser engraving behind the extruder The pattern machine engraves the light guide points to make a long flexible light guide strip. The flexible light guide strip plays the role of guiding and evenly distributing the light. On the side of the flexible light guide strip, it has been welded and contains the LED lights. The flexible light strip of the circuit board of the bead, the light-emitting surface of the LED lamp bead is close to the side of the flexible light guide plate, and then enters the two-material extruder to extrude a flexible light-transmitting resin with diffusion and a light-reflecting flexible resin at the same time. The two resins are completely fused together at the interface, wrapping the LED flexible light bar and the flexible light guide strip. After extrusion, the long (longitudinal) circumference will form a fully wrapped and closed outer structure with diffuse flexibility. The light-transmitting resin is affixed or glued to the light guide strip, and is attached or glued on which side of the light guide strip to form the light emitting surface. After power on, the light emitted by the LED lamp enters the light guide strip and is attached to the light guide strip. Under the action of the reflective surface of the reflective resin, after a variety of reflections and refraction, it enters the flexible light-transmitting resin layer with diffusion, and then emits outwards to form a side-emitting flexible panel light. From the perspective of the overall panel light, The light emitted by the LED lamp beads starts to emit from the surface of the panel light, and the direction of light irradiation is completely reversed.

According to the present invention, there is also provided a side-emitting flexible panel light, which includes: a bottom layer and reflective flexible resin layers on both sides; LED flexible light bars; flexible light guide strips; flexible light-transmitting resin layers with diffusion on the front; The function of the flexible resin layer on the flexible panel lamp is to reflect the light irradiated to the back and sides to the flexible light guide strip through the surface of the reflective flexible resin layer, and then reflect and refract the light guide strip to make more light It is transmitted from the front to the flexible light-transmitting resin layer with diffusion on the front, and then is sent out. The flexible light guide plate plays the role of guiding and evenly distributing the light. The flexible light-transmitting resin layer with diffusion on the front is the light The diffused light-emitting layer can make the outward light more uniform. The reflective flexible resin layer and the flexible light-transmitting resin layer with diffusion on the front side are completely fused and connected at the junction to form a closed outer structure. The closed outsourcing structure not only supports and protects the flexible panel light, but also plays a waterproof function of the whole wrap around the long direction (longitudinal) of the panel light. The flexible light guide strip is in the middle and is clamped on the front strip. Between the diffused flexible light-transmitting resin layer and the light-reflecting flexible resin layer, there are many light guide points on the surface of the flexible light guide strip. The light guide points are uneven light guide points formed by the resin itself, or are made of light guide ink The light guide point, the LED flexible light strip is on one side or two sides of the flexible light guide strip, the light emitting surface of the LED lamp bead on the flexible light strip faces the flexible light guide strip, and the light emitted by the lamp bead after power-on Into the flexible light guide strip, and then through the common reflection and refraction of the light guide strip with light guide points and the reflective flexible resin, the light can be transmitted more evenly to the flexible light transmissive resin layer with diffusion on the front and pass through The front side has a flexible light-transmitting resin layer, and then it is emitted outwards. From the perspective of the panel light, the light is emitted from the LED lamp bead to the light from the surface of the panel light. The light irradiation direction is completely reversed. This side-emitting flexible The panel light can be made into an ultra-long flexible panel light, the length is greater than or equal to 0.5 meters, less than or equal to 300 meters, and can be bent at any position during use.

According to a preferred embodiment of the present invention, the side-emitting flexible panel light is characterized in that the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board is shrunk in multiple places on both sides. A narrow circuit board, or a circuit board with multiple narrowing on one side, is convenient for the flexible panel light to be bent and used. The flexible light bar can bend along the bending direction of the panel light and is not easy to break.

According to a preferred embodiment of the present invention, the side-emitting flexible panel light is characterized in that the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board has multiple cuts in the middle. Seams or circuit boards with multiple hollows, or circuit boards with multiple hollows or slits and multiple narrowings, are convenient for the flexible light bar to bend along the bending direction of the panel light when the flexible panel light is used, which is not easy Break off.

According to a preferred embodiment of the present invention, the side-emitting flexible panel light is characterized in that the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board is approximately in the shape of a "Great Wall" Or similar to a "saw-shaped" circuit board, the LED is on the "Great Wall", or on the "sawtooth", the circuit board is bent as a whole so that the cross section at the bend is approximately "L-shaped", and the part with lamp beads On the side of the light guide strip, the part of the circuit board without lamp beads is on the other side of the light guide strip. This structure is convenient for the flexible light bar to bend along the bending direction of the panel light when the flexible panel light is used for bending, and is not easy to be broken.

According to a preferred embodiment of the present invention, the side-emitting flexible panel light is characterized in that the LED flexible light bar is a flexible light bar made of a flexible circuit board, a circuit board with lamp beads and a lamp The bead is on the side of the flexible light guide strip, and the circuit board on the side of the light guide strip is hollowed out. The side of the circuit board without lamp beads is the main part of the circuit board, which is bent on the other side of the light guide strip. The formed cross-section is a near-sighted "L-shaped" structure, this structure is convenient for the flexible panel light to bend and use, the flexible light bar can bend along the bending direction of the panel light, and it is not easy to break.

According to a preferred embodiment of the present invention, the side-emitting flexible panel light is characterized in that the flexible light bar is a flexible light bar made of a flexible circuit board, and the middle of the flexible circuit board is pasted with lamp beads, and the flexible circuit There are multiple gaps or hollows formed in the middle of the board. The two sides of the flexible circuit board are main body connectors. The main body connectors on the two sides of the circuit board without lamp beads are respectively bent, so that the circuit board forms a near-sighted "U"-shaped groove structure. The area with the lamp bead in the middle is on the side of the light guide strip, and the "U"-shaped groove structure sandwiches the edge of the light guide plate, which is convenient for the flexible light strip to bend along the bending direction of the panel light when the flexible panel light is used, and it is not easy to be broken.

According to a preferred embodiment of the present invention, the side-emitting flexible panel light is characterized in that the flexible light bar is made by welding flexible metal wires with LED lights. The surface of the wire is insulated by insulating resin, and the wires are separated and not connected in many places. The lamp beads of this flexible light bar are attached to the side of the light guide strip. This structure is convenient for the flexible light when the flexible panel light is bent and used. The strip can be bent along the bending direction of the panel light, and it is not easy to break.

According to a preferred embodiment of the present invention, the side-emitting flexible panel light is characterized in that the flexible circuit board of the flexible light bar is straight and is a long circuit board with approximately the same width at all positions , The width of the circuit board is greater than or equal to 2mm and less than or equal to 12mm.

According to a preferred embodiment of the present invention, the side-emitting flexible panel lamp is characterized in that the lamp beads of the flexible light bar are side-emitting lamp beads, and the lamp beads are soldered to the circuit board. It emits light toward the side of the circuit board, and the light-emitting surface of the lamp bead faces the flexible light guide strip. This structure is convenient for the flexible panel light to bend and use, the flexible light bar can bend along the direction of the panel light, and it is not easy to bend and break.

According to a preferred embodiment of the present invention, the side-emitting flexible panel light is characterized in that the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board is a layered board, A layered board is a layered structure in which a two-layer circuit or a three-layer circuit is partly layered.

According to a preferred embodiment of the present invention, the side-emitting flexible panel light is characterized in that the LED flexible light bar is on one side or two sides of the light guide strip, when the flexible light bar is on One side is a flexible light bar. The light bar is on either side of the light guide strip. The light emitted by the LED lamp bead is irradiated from one side of the light guide strip into the light guide strip. When the flexible light strip is on both sides When there are two light bars on the side, the light bars are on the two sides of the light guide strip. The light emitted by the LED lamp beads is irradiated from the side of the light guide strip into the light guide strip, and the light emitted by the LEDs on the two light strips , Illuminate into the light guide strip, and shoot each other in pairs.

According to a preferred embodiment of the present invention, the side-emitting flexible panel light is characterized in that the LED flexible light bar is a circuit board light bar designed periodically, and the flexible light bar is composed of a plurality of identically designed The functional short periodic light strips are connected into a long light strip, and there are cutting positions between each periodic light strip, which can be cut at any cutting position, so that the flexible panel light can also be cut at these cutting positions. use.

According to a preferred embodiment of the present invention, the side-emitting flexible panel light is characterized in that the enclosed outer structure is a closed type facing the length direction (longitudinal) of the panel light. The waterproof structure.

In the following description of the drawings and specific embodiments, details of one or more embodiments of the present invention will be explained.

Description of the drawings

The features, purposes and advantages of the present invention will become more apparent by reading this specification in conjunction with the following drawings. A brief description of the drawings is as follows.

Fig. 1 is an LED flexible light bar, and the circuit board used is a schematic plan view of a straight flexible circuit board.

Figure 2 is a schematic plan view of the LED flexible light bar, the circuit board used in it, which is narrowed in multiple places on both sides of the flexible circuit board.

Fig. 3 is a schematic plan view of the LED flexible light bar, which uses a circuit board and is narrowed in multiple places on one side of the flexible circuit board.

Figure 4 is a schematic plan view of the LED flexible light bar, which uses a circuit board similar to the "Great Wall shape".

Figure 5 is a schematic plan view of the LED flexible light bar, which uses a circuit board that is approximately "saw-shaped".

Figure 6 is an LED flexible light bar, which uses a circuit board similar to another "saw-blade" plan view.

Figure 7 shows the LED flexible light bar. The circuit board used is folded into an approximate "L shape". The welding lamp bead part is on one side of the "L shape", and the circuit board on this side is provided with hollow holes, and the circuit board is not attached to the light. One side of the bead is a schematic plan view of the main part of the circuit board.

Fig. 8 is a schematic plan view of the LED flexible light bar with multiple slits in the middle of the circuit board.

Fig. 9 is an LED flexible light bar. The circuit board used in it is a schematic plan view with more hollows in the middle.

Fig. 10 is an LED flexible light bar, which uses a circuit board with lamp beads in the middle, a plurality of hollows are formed in the middle of the flexible circuit board, and the two sides of the flexible circuit board are schematic plan views of the main body connecting body.

Fig. 11 is a schematic plan view of the LED flexible light bar, the circuit board used is a straight long circuit board, and the light-emitting lamp beads on the welding side of the circuit board.

Fig. 12 is a schematic plan view of a flexible copper wire lamp with LED lamp beads welded on a copper wire.

Fig. 13 is a schematic plan view of processing light guide points on a long light-transmitting strip.

Fig. 14 is a schematic cross-sectional view of attaching the LED flexible light bar of "Fig. 1, or Fig. 2, or Fig. 3" to the side of the flexible light guide strip to make a side-emitting flexible panel light.

Fig. 15 is a cross-sectional schematic diagram of the LED flexible light bar of "Fig. 4, or Fig. 5, or Fig. 6, or Fig. 7" attached to the side of the flexible light guide strip to make a side-emitting flexible panel light.

Fig. 16 is a schematic cross-sectional view of attaching the LED flexible light bar of "Fig. 8, or Fig. 9, or Fig. 10" to the side of the flexible light guide plate to make a side-emitting flexible panel light.

Fig. 17 is a schematic cross-sectional view of the LED flexible light bar of "Fig. 8, or Fig. 9, or Fig. 10" attached to both sides of the flexible light guide strip to make a side-emitting flexible panel light.

Figure 18 is a cross-sectional schematic diagram of the side-emitting flexible panel light by attaching the LED flexible light bar "Figure 11" to the side of the flexible light guide plate.

Figure 19 is a schematic cross-sectional view of a side-emitting flexible panel light by attaching the "Figure 12" LED flexible light bar to the side of the flexible light guide plate.

Figure 20 shows that when the side-emitting flexible panel light is energized and used, the light emitted by the LED light enters the light guide plate and turns about 90 degrees under the action of the light guide plate and reflective resin, and then moves from the flexible light-transmitting resin layer with diffusion to the light guide plate. Schematic diagram of the cross-section sent out.

Figure 21 shows that when the side-emitting flexible panel light is energized and used, the light emitted by the LED light enters the light guide plate and turns about 90 degrees under the action of the light guide plate and reflective resin, and then moves from the flexible light-transmitting resin layer with diffusion to the light guide plate. The three-dimensional schematic diagram of the external issue.

detailed description

Hereinafter, the present invention will be described in detail by taking a preferred embodiment as an example.

However, those skilled in the art should understand that the following descriptions are merely examples to illustrate and describe some preferred embodiments, and do not impose any limitation on the claims of the present invention.

The production of flexible circuit boards:

Using traditional circuit board production technology, according to different engineering design materials, the flexible copper clad board is screen printed circuit corrosion-resistant ink, baking curing, etching, film removal, silk screen solder mask, printing characters, baking curing, OSP anti-oxidation surface Processing, forming and other processes are made into the required flexible circuit boards, such as:

Manufactured into a straight flexible circuit board 1.1 (as shown in Figure 1).

Or, it can be made into a flexible circuit board 1.2 narrowed in multiple places on both sides of the circuit board (as shown in Figure 2).

Or, it can be made into a flexible circuit board 1.3 narrowed in multiple places on one side of the circuit board (as shown in Figure 3).

Or, it can be made into a flexible circuit board 1.4 with a circuit board similar to the "Great Wall shape", which is characterized by: the soldering LED pads are set on the "Great Wall Stack" 1.4b, and the whole circuit board is along the bending line 1.4 when used in the subsequent sequence. The cross-section at a is approximately "L-shaped" (as shown in Figure 4).

Or, make the circuit board into a "saw-shaped" flexible circuit board 1.5, which is characterized by: the soldering LED pad is set on the "sawtooth" 1.5b, and in the subsequent use, the whole circuit board is along the bending line 1.5a The cross section is approximately "L-shaped" (as shown in Figure 5).

Or, make a circuit board similar to another "saw-shaped" flexible circuit board 1.6, which is characterized by: the soldering LED pad is set on the "sawtooth" 1.6b, and the circuit board is bent along the whole when used in the subsequent sequence. The line 1.6a is bent into a cross-section that is approximately "L-shaped" (as shown in Figure 6).

Or, the fabricated circuit board 1.7 is bent along the bending line 1.7a into a cross-section that is approximately "L-shaped" during subsequent use, and the soldering LED pad is set on one side of the "L-shaped", and this side The circuit board is provided with a hollow hole 1.7b, and the side of the circuit board without lamp beads is the main part of the circuit board (as shown in Figure 7),

Alternatively, a flexible circuit board 1.8 with multiple slits 1.8a in the middle of the circuit board can be made to facilitate bending along the slits 1.8a during subsequent use (as shown in Fig. 8).

Alternatively, a flexible circuit board 1.9 with more hollow holes 1.9b in the middle of the circuit board can be made to facilitate bending along the hollow holes 1.9b and the bending line 1.9a during subsequent use (as shown in Fig. 9).

Or, it can be made into a circuit board 1.10, the soldering LED pad is set in the middle, and a plurality of hollow holes 1.10b are formed in the middle of the circuit board. The two sides of the flexible circuit board are the main body connectors. In the subsequent use, the main body on both sides The connecting body is respectively bent along the bending line 1.10a to make the circuit board form a "U"-shaped groove structure. The area with lamp beads in the middle is on the side of the light guide plate, and the main structure areas on both sides are on the upper and lower surfaces of the edge of the light guide plate. When the flexible panel light is bent in use, the flexible light bar can bend along the bending direction of the panel light (as shown in Figure 10 and Figure 16).

Or, it is made into a straight long circuit board, and the circuit board is a flexible circuit board 1.11 with welding side light-emitting lamp beads (as shown in Fig. 11).

The production of LED flexible light bar:

Using the traditional SMT patch process, the solder paste is printed on the flexible circuit board with a stencil on the solder paste printer, and then the LED lamp beads 2.1 are correspondingly mounted on the solder paste printed pad, and soldered by reflow soldering. , Weld the EED lamp beads 2.1 to the flexible circuit board to make a flexible light bar with LED lights (as shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10, Figure 11), or the flexible light bar is the LED lamp 2.1 is welded on the enameled copper wire 1.12 to make the LED copper wire flexible light bar, the wire surface of the light bar is insulated with insulating resin, and the wire There are many places between the lines and the lines are separated and not connected together (as shown in Figure 12).

Production of flexible light guide strip:

The high-light-transmitting PVC resin pellets with a light transmittance of 92% are heated to 180 degrees on the extruder to melt, and then extruded into a light-transmitting strip with a width of 100mm and a thickness of 3mm through an extrusion die made according to the design. After the water tank is water-cooled and dried, the intaglio plate with the designed light guide dots is made on the gravure printing machine, and the light guide ink is printed on the light-transmitting plate belt to produce the light guide point 3.1, which enters the tunnel furnace with Celsius It is dried at a temperature of 80 degrees to produce a rectangular, transparent flexible light guide strip 3 (as shown in Figure 13) with a light guide pattern and light guide points on one side.

Or, the high light transmittance PVC resin pellets with a light transmittance of 92% are heated to 180 degrees on an extruder to melt, and then extruded into a light transmissive plate with a width of 100mm and a thickness of 3mm through an extrusion die made according to the design. The belt, before cooling, enters the double rollers of the embossing machine to press and guide the light pattern on both sides to produce the light guide point 3.1, and then it is water-cooled and shaped in a sink, and dried, and the cross-section is rectangular, transparent, and double-sided. A flexible light guide strip 3 with light guide patterns and light guide points 3.1 (as shown in Figure 13).

Or, the high light transmittance PVC resin pellets with a light transmittance of 92% are heated to 180 degrees on an extruder to melt, and then extruded into a light transmissive plate with a width of 100mm and a thickness of 3mm through an extrusion die made according to the design. The belt is shaped by water cooling in the sink, and dried, and then enters the laser engraving machine to engrave the light guide pattern light guide point 3.1 on one side, and the cross section is rectangular, transparent, and one side has a light guide pattern light guide point. Flexible light guide strip 3 (as shown in Figure 13).

Production of side-emitting flexible panel lights:

On the side of the flexible light guide strip 3 with light guide points 3.1, paste the LED flexible light bar as shown in Figure 1, or paste the LED flexible light strip as shown in Figure 2, or paste it on the side as shown in Figure 3. As shown in the LED flexible light bar, the light-emitting surface of the LED lamp bead 2.1 is close to the side of the flexible light guide strip 3, and then enters the mold of the two-material extruder, and then puts the light-transmitting resin 5 into one of the two-material extruder In the material box, put the reflective resin 4 into the other material box of the two-material extruder, heat and melt them separately, and extrude from the mold, wrap the LED flexible light bar, flexible light guide strip 3, and paste the light-transmitting resin 5 The light-emitting surface is formed on which side of the light guide strip 3 (that is, the front), the reflective resin 4 is wrapped and pasted on the back of the light guide strip 3, and the reflective resin 4 and the light-transmitting resin 5 are completely fused and connected at the contact interface. The flexible panel light not only supports the package and protects it, but also plays the role of waterproofing the package. After being water-cooled and dried in a sink, it is made into a side-emitting flexible panel light (as shown in Figure 14), and the side-emitting flexible panel light is energized to work When in use, the light 6 emitted by the LED lamp bead 2.1 enters the light guide strip 3 under the action of the light guide point 3.1 and the reflective resin 4, and becomes the light 7 that has turned about 90 degrees, and then diffuses from the strip to the flexible light transmission The resin 5 is emitted outward (as shown in Fig. 20 and Fig. 21).

Or, the flexible LED strip as shown in Figure 4, or Figure 5, or Figure 6, or Figure 7 is bent into an L shape by 90 degrees along the bending line, and one side of the LED lamp bead 2.1 is attached To the side of the light guide strip 3, the LED lamp bead 2.1 faces the light guide strip 3, and the side of the main body containing the main wire is attached to the back of the light guide strip 3, and then enters the mold of the two-material extruder, and then the light-transmitting resin 5 Put it into one bin of the double-material extruder, put the reflective resin 4 into the other bin of the double-material extruder, respectively heat and melt and extrude from the mold to wrap the LED flexible light bar and flexible guide. Light strip 3, light-transmitting resin 5 is pasted on which side of the light guide strip 3 (ie the front) to form a light-emitting surface, reflective resin 4 is wrapped and pasted on the back of light guide strip 3, reflective resin 4 and light-transmitting resin 5 are in The contacting interface is completely integrated and integrated, which not only supports the package and protects the flexible panel light, but also plays the role of waterproofing the package. It is water-cooled and shaped by a sink and dried to make a side-emitting flexible panel light (as shown in Figure 15). ), when the side-emitting flexible panel light is energized and used, the light 6 emitted by the LED lamp beads 2.1 enters the light guide strip 3, and under the action of the light guide point 3.1 and the reflective resin 4, it becomes the light 7 that has turned about 90 degrees. , And then radiate outward from the flexible light-transmitting resin 5 with diffusion (as shown in Fig. 20 and Fig. 21).

Or, bend the flexible LED strip as shown in Figure 8, or Figure 9, or Figure 10 along the slit 1.8a or the bending line 1.9a or 1.10a into a U shape, and the LED lamp bead is in the U shape. Then, on one side of the light guide strip 3, stick the light-emitting surface of the LED lamp bead 2.1 to one side of the light guide strip 3. The lamp bead faces the light guide strip 3, and the main body containing the main line is attached to both sides The front and back of the light guide strip 3, or on the two sides of the light guide strip 3, respectively attach the light-emitting surface of the LED lamp beads 2.1 to the two sides of the light guide strip 3, and the lamp beads face the light guide strip 3 , The two sides of the main body containing the main wire are attached to the front and back of the light guide strip 3, and then enter the mold of the double-material extruder, and then put the light-transmitting resin 5 into a bin of the double-material extruder, and put the reflective resin 4 Put it into another material box of the double-material extruder, heat and melt them separately, extrude from the mold, wrap the LED flexible light bar and flexible light guide strip 3, and paste the light-transmitting resin 5 on the light guide strip 3 where the light exits One side (that is, the front side) forms a light-emitting surface. The reflective resin 4 is wrapped and pasted on the back of the light guide strip 3. The reflective resin 4 and the light-transmitting resin 5 are completely integrated at the contact interface, which supports and wraps the flexible panel light. The protective effect, and the waterproof effect of the package. After the water tank is water-cooled and dried, the side-emitting flexible panel light (as shown in Figure 16 and Figure 17) is produced. When the side-emitting flexible panel light is energized and used, the LED light The light 6 emitted by the bead 2.1 enters the light guide strip 3 under the action of the light guide point 3.1 and the reflective resin 4, and becomes the light 7 rotated about 90 degrees, and then is emitted from the diffused flexible light-transmitting resin 5 (As shown in Figure 20 and Figure 21).

Or, put the light-emitting surface of the LED lamp beads 2.1 of the LED copper wire flexible light bar shown in Figure 12 close to the side of the flexible light guide strip 3, and then enter the mold of the two-material extruder, and then place the light-transmitting resin 5 Put the reflective resin 4 into the other bin of the double-material extruder, heat and melt it separately, and extrude it from the mold to wrap the LED flexible light bar and flexible light guide plate. Tape 3, the light-transmitting resin 5 is pasted on which side of the light guide strip 3 (ie the front) to form the light-emitting surface, the reflective resin 4 is wrapped and pasted on the back of the light guide strip 3, and the reflective resin 4 and the light-transmitting resin 5 are in contact The interface is completely integrated and integrated, which not only supports the package and protects the flexible panel light, but also plays the role of waterproofing the package. It is water-cooled and shaped by the sink, and dried to make a side-emitting flexible panel light (as shown in Figure 18) When the side-emitting flexible panel light is energized and used, the light 6 emitted by the LED lamp beads 2.1 enters the light guide strip 3 and becomes the light 7 that has turned about 90 degrees under the action of the light guide point 3.1 and the reflective resin 4. Then, the flexible light-transmitting resin 5 diffused from the belt is emitted outward (as shown in FIG. 20 and FIG. 21).

Or, paste the LED flexible light strip as shown in Figure 11 on the side of the flexible light guide strip 3 of the light guide point, the light-emitting surface of the LED lamp bead 2.2 is close to the side of the flexible light guide strip 3, and the circuit board 1.11 is attached to The front side of the flexible light guide strip 3 is then put into the die of the two-material extruder, and then the light-transmitting resin 5 is put into a bin of the two-material extruder, and the reflective resin 4 is put into the other part of the two-material extruder. In a material box, they are respectively heated and melted and extruded from the mold to wrap the LED flexible light bar and the flexible light guide strip 3. The light-transmitting resin 5 is pasted on which side of the light guide strip 3 (the front side) to form the light. The reflective resin 4 is wrapped and pasted on the back of the light guide strip 3. The reflective resin 4 and the light-transmitting resin 5 are completely integrated at the contact interface, which not only supports and protects the flexible panel light, but also plays a waterproof role in the package. After the water tank is water-cooled and shaped, and dried, the side-emitting flexible panel light is made (as shown in Figure 19). When the side-emitting flexible panel light is energized and used, the light 6 emitted by the LED lamp beads 2.2 enters the light guide strip 3 at Under the action of the light guide point 3.1 and the reflective resin 4, it becomes the light 7 that has rotated about 90 degrees, and then is emitted from the flexible light-transmitting resin 5 with diffusion (as shown in Fig. 20 and Fig. 21).

The specific embodiments of a side-emitting flexible panel light have been described in detail above in conjunction with the accompanying drawings. However, those skilled in the art should understand that the above descriptions are merely examples to illustrate and describe some specific embodiments, and do not impose any limitation on the scope of the present invention, especially the scope of the claims.

Claims

A method for manufacturing a side-emitting flexible panel light. Specifically, a plastic extruder is used to continuously extrude a flexible resin with high light transmittance into a long light-transmitting strip, and a rolling embossing machine is installed at the exit of the extruder , Press the light guide strip into a continuous light guide point, or behind the extruder, a printer is equipped with a printing light guide ink to print the light guide point, or a laser engraving machine is installed behind the extruder to engrave The light guide point is made into a long flexible light guide strip. The flexible light guide strip plays the role of guiding and evenly distributing the light. On the side of the flexible light guide strip, paste the flexible circuit board containing the LED lamp beads. Light bar, LED lamp bead light-emitting surface is close to the side of the flexible light guide plate, and then enters the two-material extruder to extrude a flexible light-transmitting resin with a diffuser and a reflective flexible resin at the same time, and the two resins are being exchanged. The interface is completely fused and combined to wrap the LED flexible light bar and the flexible light guide strip. After extrusion, the long (longitudinal) circumference forms a fully-wrapped and closed outsourcing structure, and the diffused flexible light-transmitting resin is attached to it. Or stick to the light guide strip, and stick or stick on which side of the light guide strip to form the light exit surface. After power on, the light emitted by the LED lamp enters the light guide strip on the light guide plate and the reflective surface of the reflective resin Under the action of multiple reflections and refraction, it enters the flexible light-transmitting resin layer with diffusion, and then emits outwards to form a side-emitting flexible panel light. From the perspective of the panel light as a whole, the light emitted from the LED lamp beads When the light starts to emit from the surface of the panel light, the direction of the light is completely turned.
A side-emitting flexible panel light, including:

The bottom layer and the reflective flexible resin layer on both sides;

LED flexible light bar;

Flexible light guide strip;

Flexible light-transmitting resin layer with diffusion on the front side;

It is characterized in that the function of the reflective flexible resin layer on the flexible panel lamp is to reflect the light irradiated to the back and the sides to the flexible light guide strip through the surface of the reflective flexible resin layer, and then after the light guide strip is reflected and refracted, More light is transmitted from the front, to the flexible light-transmitting resin layer with diffusion on the front, and then to the outside. The flexible light guide plate plays the role of guiding and evenly distributing the light, and the front with the diffused flexible light-transmitting resin The layer is a light-emitting layer that diffuses light, which can make the light emitted out more uniform. The reflective flexible resin layer and the flexible light-transmitting resin layer diffused on the front side are completely fused and connected at the junction to become a closed one. Outsourcing structure. This closed outsourcing structure not only supports and protects the flexible panel light, but also plays a waterproof role in the entire circumference of the panel light in the long direction (longitudinal). The flexible light guide plate is in the middle. Sandwiched between the diffused flexible light-transmitting resin layer and the light-reflecting flexible resin layer on the front, there are many light guide points on the surface of the flexible light guide strip. The light guide points are uneven light guide points formed by the resin itself, or used The light guide point made of light guide ink, the LED flexible light bar is on one side or two sides of the flexible light guide strip, and the light-emitting surface of the LED lamp bead on the flexible light strip faces the flexible light guide strip. The light emitted by the beads enters the flexible light guide strip, and then passes through the common reflection and refraction effect of the light guide strip with light guide points and the reflective flexible resin, which fully enables the light to be more evenly transmitted to the flexible light-transmitting resin with diffusion on the front It passes through the flexible light-transmitting resin layer with diffusion on the front, and then emits outwards. From the perspective of the panel light as a whole, the light is emitted from the LED lamp bead to the surface of the panel light, and the direction of light irradiation is completely reversed. This side-emitting flexible panel light can be made into an ultra-long flexible panel light with a length greater than or equal to 0.5 meters and less than or equal to 300 meters, and can be bent and used in any position during use.
The side-emitting flexible panel light according to claim 1 or 2, wherein the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board is a circuit with multiple narrowing on both sides. The board, or the circuit board with multiple narrowing on one side, is convenient for the flexible panel light to be bent and used. The flexible light bar can bend along the bending direction of the panel light and is not easy to break.
The side-emitting flexible panel light according to claim 1 or 2, wherein the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board has multiple slits or slits in the middle. There are more hollow circuit boards, or circuit boards with multiple hollows or slits and multiple narrowing points, so that the flexible light bar can bend along the bending direction of the panel light when the flexible panel lamp is bent and used, and it is not easy to break.
The side-emitting flexible panel light according to claim 1 or 2, characterized in that, the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board is approximately "Great Wall" or "approximately" Saw blade-shaped circuit board, LED is on the "Great Wall Stack", or on the "sawtooth", the circuit board is bent as a whole so that the cross section at the bend is approximately "L-shaped", and the part with lamp beads is on the light guide plate On the side of the belt, the part of the circuit board without lamp beads is on the other side of the light guide plate belt. This structure is convenient for the flexible light bar to bend along the bending direction of the panel light when the flexible panel light is bent and used, and it is not easy to break.
The side-emitting flexible panel light according to claim 1 or 2, characterized in that, the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the circuit board with the lamp bead part and the lamp bead are in the flexible The side of the light guide strip, and the circuit board on the side of the light guide strip is hollowed out. The side of the circuit board without lamp beads is the main part of the circuit board. The main line of the circuit board is bent on the other side of the light guide strip to form The cross-section is a near-sighted "L-shaped" structure. This structure is convenient for the flexible panel light to bend and use, the flexible light bar can bend along the bending direction of the panel light, and it is not easy to break.
The side-emitting flexible panel light according to claim 1 or 2, wherein the flexible light bar is a flexible light bar made of a flexible circuit board, the middle of the flexible circuit board is pasted with lamp beads, and the middle of the flexible circuit board is formed There are multiple gaps or hollows, the two sides of the flexible circuit board are main body connectors, and the main body connectors on both sides of the circuit board without lamp beads are respectively bent, so that the circuit board forms a near-sighted "U"-shaped groove structure with lights in the middle. The area of the bead is on the side of the light guide strip, and the "U"-shaped groove structure sandwiches the edge of the light guide, which is convenient for the flexible light bar to bend along the bending direction of the panel light when the flexible panel light is used, and it is not easy to break.
The side-emitting flexible panel light according to claim 1 or 2, characterized in that, the flexible light bar is a flexible light bar made by welding flexible metal wires containing LED lights, and the wire surface of the light bar has Insulating resin insulation, there are many places between the wires and the wires are separated and not connected together. The lamp beads of this flexible light bar are attached to the side of the light guide strip. This structure is convenient for the flexible light bar to be smooth when the flexible panel light is bent and used. The panel light is bent in the bending direction, and it is not easy to break.
The side-emitting flexible panel light according to claim 1 or 2, characterized in that, the flexible circuit board of the flexible light bar is straight, and is a long circuit board with approximately the same width at all positions. The width is greater than or equal to 2mm and less than or equal to 12mm.
The side-emitting flexible panel light according to claim 1 or 2, wherein the lamp beads of the flexible light bar are side-emitting lamp beads, and the lamp beads are soldered on the circuit board and face the circuit board. The side of the lamp emits light, and the light-emitting surface of the lamp bead faces the flexible light guide strip. This structure is convenient for the flexible panel light to bend and use, the flexible light bar can bend along the direction of the panel light, and is not easy to bend and break.
The side-emitting flexible panel light according to claim 1 or 2, characterized in that, the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board is a layered board. A two-layer circuit or a three-layer circuit is a layered structure in which partial regions are layered.
The side-emitting flexible panel light according to claim 1 or 2, wherein the LED flexible light bar is on one side or two sides of the light guide strip, when the flexible light bar is on one side When the light is a flexible light bar, the light bar is on either side of the light guide strip. The light emitted by the LED lamp bead is irradiated from one side of the light guide strip into the light guide strip. When the flexible light strip is on two sides, it is Two light bars, the light bar is on the two sides of the light guide strip, the light emitted by the LED lamp beads irradiates from the side of the light guide strip into the light guide strip, and the light emitted by the LEDs on the two light strips illuminates and enters In the light guide plate, they line up and shoot in pairs.
The side-emitting flexible panel light according to claim 1 or 2, characterized in that, the LED flexible light bar is a circuit board light bar designed periodically, and the flexible light bar is composed of a plurality of short circuit boards with the same design function. The periodic light strips are connected as a long light strip, and there is a cutting position between each periodic light strip, which can be cut and used at any cutting position, so that the flexible panel light can also be cut and used at these cutting positions.
The side-emitting flexible panel light according to claim 1 or 2, characterized in that, the closed outer structure is a closed waterproof structure formed around the length direction (longitudinal) of the panel light .