CN217279934U

CN217279934U - LED display screen

Info

Publication number: CN217279934U
Application number: CN202123303521.9U
Authority: CN
Inventors: 胡日浩; 蔡登峰; 舒鹏
Original assignee: Shenzhen Infiled Electronics Co Ltd
Current assignee: Shenzhen Infiled Electronics Co Ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-08-23
Anticipated expiration: 2031-12-24

Abstract

The utility model provides a LED display screen, which comprises a PCB board and lamp beads distributed on the PCB board, and comprises a gap layer; the LED display screen comprises a PCB, a gap layer, a lamp bead array, a gap layer and a light-emitting layer, wherein the lamp bead array is distributed on the PCB, a gap is arranged between the lamp bead and an adjacent lamp bead, the gap layer covers the gap, the gap layer is lower than the upper end face of the lamp bead, the gap layer is paved in the gap between the lamp beads, the color difference on the PCB can be eliminated, the effect of protecting the PCB is achieved, the light-emitting part of the lamp bead can not be shielded or covered, the consistency of the lamp face is guaranteed, the contrast of the LED display screen is improved, the phenomenon of moire can not be generated, and the display effect is better.

Description

LED display screen

Technical Field

The utility model relates to an LED display screen field especially relates to a LED display screen.

Background

The patent with the patent number of CN110148361B provides an LED display screen, which has a lamp surface, wherein a protective resin layer and an elastic resin layer are sequentially arranged on the lamp surface of the LED display screen, and the protective resin layer is located between the elastic resin layer and the lamp surface; the elastic resin layer is a nanoparticle modified resin layer and is prepared from the following components: 1-10 parts of nano silicon oxide, 1-2 parts of nano aluminum oxide, 1-10 parts of a silane coupling agent, 1-2 parts of a low free energy organic reagent and 100-200 parts of resin glue, wherein the mass ratio of the nano silicon oxide to the resin glue is 1: 200-1: 20, and the mass ratio of the nano aluminum oxide to the resin glue is 1: 200-1: 100; and forming the elastic resin layer on the surface of the protective resin layer, which is far away from the lamp surface, after the elastic resin glue is cured. Above-mentioned patent covers a plurality of resin layers on the lamp face, although play the guard action to the lamp pearl, but the resin covers luminous lamp pearl completely, even the resin is transparent, still can produce the printing opacity loss when lamp pearl illumination, can not guarantee completely that each lamp pearl surface display is all the same, consequently, can not guarantee the uniformity of lamp face, if simultaneously in order to guarantee the illumination effect of lamp face, just need have higher requirement to protection resin layer and elastic resin layer in the above-mentioned patent, the cost of manufacture of this display screen has been increased, and the lateral surface of lamp pearl covers the resin layer when showing the picture, can produce mole line phenomenon, mole line phenomenon naked eye can't see, but when using digital camera or cell-phone to shoot the LED display screen, can demonstrate the ripple of a circle, influence display effect.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, an object of the present invention is to provide an LED display screen to solve the above mentioned technical problems.

The utility model discloses an one of the purpose adopts following technical scheme to realize: an LED display screen comprises a PCB and lamp beads distributed on the PCB, and comprises a gap layer; the lamp bead array is distributed on the PCB, gaps are arranged between the lamp beads and the adjacent lamp beads, the gap layers cover the gaps, and the height of each gap layer is lower than the upper end face of each lamp bead.

Further, the gap layer is a black glue layer.

Furthermore, the height from the outer side surface of the gap layer to the upper end surface of the lamp bead is L, and H of the height of the lamp bead is less than 1/3H.

Further, the black glue layer is an epoxy resin layer.

Further, the black glue layer is an organic silicon resin layer.

Further, the size of the lamp bead is 0.5mm-2 mm.

Further, the black glue layer is made by melting and solidifying powder particles.

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

the utility model discloses in, in the clearance of covering between the lamp pearl through the interstitial layer, can eliminate the colour difference on the PCB board, play the effect of protection PCB board, can not shelter from or cover the department of putting light of lamp pearl again to guarantee the uniformity of lamp face, improve the LED display screen contrast, and still can not produce the mole line phenomenon, the display effect is better.

Drawings

FIG. 1 is an overall view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is the utility model discloses some embodiments lamp pearl and clearance layer between the size sketch map.

In the figure:

1. a lamp bead; 11. a gap; 2. a gap layer; 3. a black glue layer; 4. and (7) a PCB board.

Detailed Description

The present invention will be further described with reference to fig. 1 to 3 and the detailed description thereof, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

The embodiment of the utility model provides a one of the purposes adopts following technical scheme to realize: an LED display screen is disclosed, as shown in fig. 1 and fig. 2, comprising a PCB 4, beads 1 distributed on the PCB 4, and a gap layer 2, wherein the beads 1 are distributed on the PCB 4 in an array, a gap 11 is provided between each bead 1 and the adjacent bead 1, the gap layer 2 covers the gap 11, the height of the gap layer 2 is lower than the upper end face of the bead 1, specifically, as shown in fig. 3, the height from the upper side face of the gap layer 2 to the upper end face of the bead 1 is L, the height H of the bead 1 is less than 1/3H, under the setting of the height, the gap 11 between the beads 1 can not leave too much space to cause dust collection, and can not block the upper end of the bead 1 from emitting light, compared with the display screen which has a multilayer structure and the upper layer is parallel to the upper end face of the bead 1 or even higher than and covers the upper end face of the bead 1, the multilayer structure protective layer must be made of transparent material, transparent material is higher to the protective layer requirement to the material, therefore the cost is higher, and the structure of the utility model can adopt black glue film 3, compare with transparent material's resin, not only have higher fire resistive nature, and the colour of the unified PCB board 4 of black, the uniformity of display screen surface colour has been guaranteed, can not cause the printing opacity loss when illumination yet, it is all the same to guarantee 1 surface display of each lamp pearl completely, improve the LED display screen contrast, and can not produce the mole line phenomenon yet, the display effect is better.

The black glue layer 33 can be formed by solidifying powder resin, such as epoxy resin powder, the organic silicon resin powder is solidified to form an epoxy resin layer or an organic silicon resin layer, namely, when the black glue layer 3 is manufactured, firstly, resin material particles are paved on the PCB 4, the PCB 4 is integrally placed into the heating cavity, the heating cavity is heated to about 120 degrees, the silicon plastic material is melted to be thickly covered on the PCB 4, so that the manufacturing can ensure that no moisture is left between the black glue layer 3 and the PCB 4, the material is melted and flows in the gap 11 to effectively occupy the gap 11, the air and other residues possibly corroding the PCB 4 in the gap 11 are effectively eliminated, and therefore, the PCB 4 can be ensured not to rust.

Further, in some embodiments, the height of the lamp bead 1 is 0.5mm-2 mm.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. An LED display screen comprises a PCB and lamp beads distributed on the PCB, and is characterized by comprising a gap layer; the lamp bead array is distributed on the PCB, gaps are arranged between the lamp beads and the adjacent lamp beads, the gap layers cover the gaps, and the height of each gap layer is lower than the upper end face of each lamp bead.

2. The LED display screen of claim 1, wherein the gap layer is a black glue layer.

3. The LED display screen of claim 1, wherein the height from the outer side surface of the gap layer to the upper end surface of the lamp bead is L, and the height H of the lamp bead is less than 1/3H.

4. The LED display screen of claim 2, wherein the black glue layer is an epoxy layer.

5. The LED display screen of claim 2, wherein the black glue layer is a silicone resin layer.

6. The LED display screen of claim 2, wherein the height of the beads is 0.5mm-2 mm.

7. The LED display screen of claim 2, wherein the black glue layer is formed by melting and solidifying powder particles.