CN214847519U

CN214847519U - LED lamp panel structure

Info

Publication number: CN214847519U
Application number: CN202120567633.6U
Authority: CN
Inventors: 林健源
Original assignee: Shenzhen TCL New Technology Co Ltd
Current assignee: Shenzhen TCL New Technology Co Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-11-23
Anticipated expiration: 2031-03-19

Abstract

The utility model relates to a LED lamp plate structure, include: printed circuit board, LED lamp and encapsulation glue, printed circuit board's upper surface is side by side and the interval is provided with two or more than two LED lamps, is provided with the encapsulation glue in the interval department of LED lamp, the luminousness that the encapsulation was glued is not more than 50%. The utility model provides a LED lamp plate structure effectively solves or has improved to a certain extent LED lamp plate and sealed the technical problem that the back looks sideways at the border and does not have the light leak to the integration and the visual effect of LED display screen have been promoted.

Description

LED lamp panel structure

Technical Field

The utility model relates to a LED lamp plate technical field, concretely relates to LED lamp plate structure.

Background

At present, there is the problem that looks sideways at the border light leak after current LED lamp plate seals glue, and the reason is because the light field at lamp plate border distributes with the difference at other positions, because this problem, in lamp plate concatenation department, looks sideways at the light leak and has influenced the integration effect of LED display screen, has the segmentation in the image vision, in order to promote visual effect, how solve LED lamp plate and seal glue the back and look sideways at the border light leak problem and become a big difficult problem in order to present stage.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that the LED lamp plate that exists seals the glue and looks sideways at the border light leak after, the utility model discloses a main aim at provides a LED lamp plate structure, effectively solves or has improved to a certain extent that the LED lamp plate seals and looks sideways at border zero leak, light all basically through after gluing, the effectual technical problem of lamp plate homogeneity to the integration and the visual effect of LED display screen have been promoted.

The utility model provides a technical scheme is:

an LED lamp panel structure, includes: a printed circuit board and an LED lamp; further comprising: packaging glue;

the LED lamp packaging structure is characterized in that the upper surface of the printed circuit board is provided with two or more LED lamps side by side at intervals, the interval of the LED lamps is provided with packaging glue, and the light transmittance of the packaging glue is not more than 50%.

Preferably, the encapsulating adhesive includes: the packaging structure comprises a first layer of packaging glue and a second layer of packaging glue, wherein the first layer of packaging glue is located between the second layer of packaging glue.

Preferably, the LED lamp has a top surface, and the top surface is provided with a first layer of packaging adhesive.

Preferably, the top surface of the LED lamp is further provided with a second layer of packaging glue, and the second layer of packaging glue is located on one side, far away from the LED lamp, of the first layer of packaging glue.

Preferably, the first layer of packaging adhesive is colorless and has a light transmittance of not less than 75%.

Preferably, the first layer of encapsulation glue is specifically made of epoxy resin or silica gel.

Preferably, the second layer of packaging adhesive is black and has a light transmittance of not more than 50%.

Preferably, the second layer of encapsulation adhesive is specifically made of epoxy resin and black carbon powder, or silica gel and black carbon powder.

Preferably, the thickness of the packaging adhesive is 10-20 um.

Preferably, the upper surface of the printed circuit board is provided with a silver layer.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a LED lamp plate structure, include: the LED lamp comprises a printed circuit board, an LED lamp and packaging glue; the upper surface of the printed circuit board is provided with two or more LED lamps side by side at intervals, packaging glue is arranged at the intervals of the LED lamps, and the light transmittance of the packaging glue is not more than 50%. The utility model provides a LED lamp plate structure effectively solves or has improved to a certain extent LED lamp plate and sealed the technical problem that the back looks sideways at the border and does not have the light leak to the integration and the visual effect of LED display screen have been promoted.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a lamp panel before sealing the adhesive;

FIG. 2 is a schematic view of the lamp panel after the first layer of glue sealing is performed;

FIG. 3 is a schematic view of the first layer of molding compound pressed down by the packaging mold of the present invention;

fig. 4 is a schematic view of the lamp panel structure after the packaging mold is removed;

FIG. 5 is a schematic view of the lamp panel after the second layer of glue sealing is performed;

FIG. 6 is a schematic view of the lamp panel structure of the present invention with the top surface encapsulation glue removed;

numbering in the figures:

1: the printed circuit board 2: LED lamp

3: the packaging mold 31: pressing plate

32: and (4) briquetting: packaging adhesive

41: first layer of packaging adhesive 42: second layer of packaging glue

5: art edge

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

At present stage, there is the problem that looks sideways at the border light leak after current LED lamp plate seals the glue, and the reason is because the light field at lamp plate border distributes with the difference at other positions, because this problem, in lamp plate concatenation department, looks sideways at the light leak and has influenced the integration effect of LED display screen, and there is the segmentation in the image vision, for promoting visual effect, how to solve LED lamp plate and seal glue the big difficult problem that the back looks sideways at the border light leak problem becomes for present stage.

In order to solve the above problems, the utility model provides a LED lamp panel structure, which is carried out by glue pouring or coating, and fig. 1 is a schematic diagram of the lamp panel structure before glue sealing; FIG. 2 is a schematic view of the lamp panel after the first layer of glue sealing is performed; FIG. 3 is a schematic view of the first layer of molding compound pressed down by the packaging mold of the present invention; fig. 4 is a schematic view of the lamp panel structure after the packaging mold is removed; FIG. 5 is a schematic view of the lamp panel after the second layer of glue sealing is performed; fig. 6 is the utility model discloses the top surface encapsulation is got rid of to the lamp plate structure and is glued the schematic diagram.

The utility model provides a scheme has the bed die, and figure 1-figure 5 in the aforesaid all go on in the die cavity of bed die, and the size of lamp plate is roughly the same with the die cavity size of bed die, conveniently fixes the LED lamp plate to conveniently adopt the formpiston impression, figure 6 is for taking out the LED lamp plate from the bed die, and cut away technology limit 5, specifically discuss as follows:

as shown in fig. 1-6, the utility model provides a LED lamp plate structure, include: the LED lamp comprises a printed circuit board 1, an LED lamp 2 and packaging adhesive 4;

the upper surface of the printed circuit board 1 is provided with two or more LED lamps 2 side by side at intervals, the interval of the LED lamps 2 is provided with the packaging adhesive 4, and the light transmittance of the packaging adhesive 4 is not more than 50%.

Further, the packaging adhesive 4 includes: 2 layers, specifically, a first layer of packaging glue 41 and a second layer of packaging glue 42, where the first layer of packaging glue 41 is located between the second layer of packaging glue 42.

The LED lamp 2 is provided with a top surface, the top surface is provided with a first layer of packaging adhesive 41, in addition, the technical edge 5 of the side surface is also provided with a first layer of packaging adhesive 41 and a second layer of packaging adhesive 42, the light transmittance of the first layer of packaging adhesive 41, namely transparent adhesive, is any numerical value within the range of more than or equal to 75%, and when the light transmittance of the transparent adhesive is 95% or more, the light transmittance is optimal.

The top surface of the LED lamp 2 is also provided with a second layer of packaging adhesive 42, namely the top surface comprises a first layer of packaging adhesive 41 and a second layer of packaging adhesive 42, and the second layer of packaging adhesive 42 is positioned on one side, away from the LED lamp, of the first layer of packaging adhesive 41. The technical edge 5 of the side face is also provided with a first layer of packaging glue 41 and a second layer of packaging glue 42, wherein the light transmittance of the second layer of packaging glue 42, namely the black glue, is less than or equal to any numerical value within the range of 50%, and when the light transmittance of the black glue is 5-10%, the light transmittance is optimal.

Preferably, the first layer of encapsulant 41 is a liquid adhesive, which is a transparent, colorless, high-transmittance material, and makes the first layer of encapsulant flat, and the transparent, colorless, high-transmittance material is specifically epoxy resin or silica gel.

Preferably, the preparation LED lamp plate structure still needs: and the packaging mold 3 is provided with a pressing plate 31 and a pressing block 32, the pressing block 32 is matched with the LED lamp 2 at intervals, and the packaging mold 3 is of a double-T-shaped structure.

Further, an encapsulation mold 3 is adopted to imprint the uncured first layer of encapsulation, the encapsulation mold 3 has the function of isolating each LED lamp 2, the width of the encapsulation mold is less than the distance between the two LED lamps 2, and the thickness of the adhesive layer needs to be controlled; meanwhile, the plane A/B/C of the packaging mold 3, which is just opposite to each LED lamp bead, is positioned on the same horizontal plane, after the packaging mold 3 is pressed down, the first layer of sealing glue is cured, the first layer of sealing glue is also ensured to completely wrap the LED lamp 2, and the packaging mold is separated from the mold after the curing is finished, so that a groove structure is formed.

Preferably, the glue 42 for the second layer encapsulation is encapsulated by black materials with low light transmittance, uneven grooves left after the first layer is sealed by the glue are filled, and the plane of the second layer sealing glue is flat, so that the LED lamp 2 is luminous in the front, side light is blocked, the problem of side light leakage is solved, meanwhile, the light emitting surface is high in transmittance, light basically passes through the LED lamp panel, the uniformity of the LED lamp panel is good, and the glue can be applied to traditional LED, Mini LED and Micro LED display screens.

The black material with low light transmittance is specifically prepared by mixing epoxy resin and black carbon powder, or mixing silica gel and black carbon powder.

As shown in fig. 5 again, the top surface of the LED lamp 2 is respectively provided with a first layer of packaging adhesive 41 and a second layer of packaging adhesive 42, and the technical edge 5 of the side surface also includes the first layer of packaging adhesive 41 and the second layer of packaging adhesive 42.

As shown in fig. 6 again, only the technical edge 5 of the side surface of the LED lamp 2 has the first layer of packaging adhesive 41 and the second layer of packaging adhesive 42, and the first layer of packaging adhesive 41 and the second layer of packaging adhesive 42 on the top surface are cut off, which is the preferred embodiment of the present invention.

In another embodiment, the top surface of the LED lamp 2 is provided with a first layer of packaging adhesive 41, and the space between adjacent LED lamps 2, i.e. the side surface of the LED lamp 2, is provided with a first layer of packaging adhesive 41 and a second layer of packaging adhesive 42. The first layer of packaging glue 41 on the top surface and the side surface of the LED lamp wraps the LED lamp 2, the light transmittance of the second layer of packaging glue 42 is not more than 50, preferably 5% -10%, and light leakage on the side surface of the LED lamp 2 can be effectively reduced. And the luminousness of first layer encapsulation glue 41 is higher for the light of LED lamp 2 can wear out from the top surface, makes the top surface light intensity of LED lamp 2 higher, and side light leakage intensity obtains effective control.

Further, the thickness of the packaging adhesive 4 is 10-20um, and in addition, the upper surface of the printed circuit board 1 is also provided with a silver layer.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that the above only illustrates a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the scope of the claims of the present invention pending from the application.

Claims

1. An LED lamp panel structure, includes: the LED lamp comprises a printed circuit board (1) and an LED lamp (2); it is characterized by also comprising: a packaging adhesive (4);

the upper surface of printed circuit board (1) is provided with two or more side by side and interval LED lamp (2) the interval department of LED lamp (2) is provided with encapsulation glue (4), the luminousness of encapsulation glue (4) is not more than 50%.

2. The LED lamp panel structure of claim 1, wherein the packaging adhesive (4) comprises: the packaging structure comprises a first layer of packaging glue (41) and a second layer of packaging glue (42), wherein the first layer of packaging glue (41) is located between the second layer of packaging glue (42).

3. The LED lamp panel structure of claim 2, wherein the LED lamp (2) has a top surface provided with a first layer of encapsulation glue (41).

4. The LED lamp panel structure of claim 3, wherein a second layer of packaging adhesive (42) is further disposed on the top surface of the LED lamp (2), and the second layer of packaging adhesive (42) is located on one side, far away from the LED lamp (2), of the first layer of packaging adhesive (41).

5. The LED lamp panel structure of claim 2, wherein the first layer of packaging adhesive (41) is colorless and has a light transmittance of not less than 75%.

6. The LED lamp panel structure of claim 5, wherein the first layer of packaging adhesive (41) is epoxy resin or silica gel.

7. The LED lamp panel structure of claim 2, wherein the second layer of encapsulation adhesive (42) is black and has a light transmittance of not more than 50%.

8. The LED lamp panel structure of claim 7, wherein the second layer of packaging adhesive (42) is made of epoxy resin and black carbon powder, or silica gel and black carbon powder.

9. The LED lamp panel structure of claim 1, wherein the thickness of the packaging adhesive (4) is 10-20 um.

10. The LED lamp panel structure of claim 1, wherein the upper surface of the printed circuit board (1) is provided with a silver layer.