Micro-pitch integrated packaging structure of LED display screen

Abstract

The utility model discloses a micro-spacing integrated packaging structure of an LED display screen. The micro-spacing integrated packaging structure comprises a substrate, a plurality of LED lamp beads welded on the substrate at intervals, a layer of primer covering the LED lamp beads, a plurality of pieces of top glue arranged on the LED lamp beads, and a layer of packaging glue arranged on one side of the primer. The primer is a layer of black glue, and the height of the primer is lower than that of the LED lamp beads. The top glue comprises a layer of transparent glue and a plurality of optical diffusion particles mixed in the transparent glue. According to the structure, light emitted from the surface of the transparent glue can be converged on one point through the transparent glue of the convex structure, so that the definition of an image is improved. The light emitted by the LED lamp beads can be refracted, reflected and scattered through the optical-grade diffusion particles mixed in the transparent glue, so that the effect of uniform light sources is achieved, the dazzle light phenomenon is effectively reduced, and the film watching comfort is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screen packaging, in particular to a micro-pitch integrated packaging structure of an LED display screen. Background Art

[0002] With the advancement of social civilization and the further improvement of people's cognitive level, the pursuit of higher quality of life has also increased accordingly. At the same time, the continuous decline in upstream LED manufacturing costs has led to a gradual shift in the application of LED displays from outdoor applications to indoor applications such as shopping malls, hospitals, entertainment venues, and conference rooms. Some products have now entered the home. These changes in application scenarios have put forward different requirements for LED displays, from the original high brightness and large pitch to low brightness and fine pitch. However, most indoor fine pitch LED displays will cause "glare" and "screen distortion" when viewed at close range, causing discomfort and affecting the viewing experience. Utility Model Content

[0003] In view of this, the present invention provides a micro-pitch integrated packaging structure for an LED display screen to solve the above problems.

[0004] A micro-pitch integrated packaging structure for an LED display screen comprises a substrate, a plurality of LED lamp beads welded to the substrate at intervals, a layer of base glue covering the spaces between the LED lamp beads, a plurality of top glue layers disposed on the LED lamp beads, and a layer of encapsulating glue disposed on one side of the base glue. The base glue is a layer of black glue, the height of which is lower than that of the LED lamp beads. The top glue layer comprises a layer of transparent glue and a plurality of optical-grade diffuser particles mixed within the transparent glue. The transparent glue has a convex structure, and the ratio of the top transparent glue to the optical-grade diffuser particles within each top glue layer is the same.

[0005] Furthermore, the side of the substrate facing away from the LED lamp beads is fixed at the projection position by means of screws, buckles, etc.

[0006] Furthermore, the distance between each of the LED lamp beads is between 0.8mm and 1.5mm.

[0007] Furthermore, two sides of the base glue abut against the opposite sides of two adjacent LED lamp beads.

[0008] Furthermore, the transparent glue is applied to the center of the light emitting surface of the LED lamp bead through a glue dispensing module.

[0009] Compared to existing technologies, the micro-pitch integrated packaging structure of the LED display provided by this utility model uses the convex structure of the transparent glue to converge light emitted from the surface of the transparent glue at a single point, thereby improving image clarity. The optical-grade diffusion particles mixed within the transparent glue can refract, reflect, and scatter the light emitted by the LED lamp beads, thereby achieving a uniform light source effect, effectively reducing glare and improving viewing comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a cross-sectional schematic diagram of the micro-pitch integrated packaging structure of the LED display screen provided by the present invention.

[0011] Figure 2 for Figure 1 A cross-sectional diagram of the LED lamp beads and top glue in the micro-pitch integrated packaging structure of the LED display. DETAILED DESCRIPTION

[0012] The following is a further detailed description of specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0013] like Figure 1 , which is a schematic diagram of the structure of the micro-pitch integrated packaging structure of the LED display provided by the present invention. The micro-pitch integrated packaging structure of the LED display includes a substrate 10, a plurality of LED lamp beads 20 welded to the substrate 10 at intervals, a layer of base glue 30 covering each of the LED lamp beads 20, a plurality of top glues 40 provided on the LED lamp beads 20, and a layer of encapsulating glue 50 provided on one side of the base glue 30. It is conceivable that the micro-pitch integrated packaging structure of the LED display also includes some other functional modules, such as a dispensing module, a power module, etc., which are technologies well known to those skilled in the art and will not be described in detail here.

[0014] The substrate 10 is used to support each of the LED lamp beads 20. The side of the substrate 10 facing away from the LED lamp beads 20 can be fixed at the projection position by screws, buckles, etc.

[0015] It should be noted that micro-pitch LED is a high-definition display technology that can achieve a high-pixel density display effect in a small space. The spacing between each of the LED lamp beads 20 is very small, usually between 0.8mm-1.5mm. In this way, the base glue 30 is applied between two adjacent LED lamp beads 20 using a dispensing module to ensure that the base glue 30 can fully fill the space between the two LED lamp beads 20, that is, the two sides of the base glue 30 abut against the sides of the two adjacent LED lamp beads 20, thereby bonding the two, thereby strengthening the structural strength between the LED lamp beads 20 and preventing the LED lamp beads from falling off.

[0016] The base glue 30 is a layer of black glue. The black base can improve the contrast of the LED display screen when displaying images, thereby enhancing image clarity. The height of the base glue 30 is lower than the height of the LED lamp beads 20. Specifically, the height of the base glue 30 is equal to half the height of the LED lamp beads 20. This strengthens the structure while not affecting the light output of the LED lamp beads 20.

[0017] See also Figure 2 The top glue 40 includes a layer of transparent glue 41 and a plurality of optical-grade diffusion particles 42 mixed within the transparent glue 41. The transparent glue 41 is applied to the center of the light-emitting surface of the LED lamp bead 20 by a dispensing module. The unsolidified transparent glue 41 then spreads outward, forming a convex structure. Due to the principle that a convex lens can converge light, the light emitted from the surface of the transparent glue 41 will converge at a single point, thereby improving image clarity.

[0018] The optical-grade diffuser particles 42 have high light transmittance and high diffusivity. They refract, reflect, and scatter light during propagation, thereby achieving a uniform light source. Several of these optical-grade diffuser particles 42 are distributed within the transparent glue 41. When light from the LED beads 20 strikes these particles, it refracts, reflects, and scatters, creating a uniform light source and effectively reducing glare.

[0019] The top glue 40 adopts a centralized feeding distribution stirring process to ensure the consistency of the ratio of the top transparent glue 41 and the optical-grade diffusion particles 42 in each top glue 40, avoiding the phenomenon of slight display differences on the LED display screen after multi-module assembly, and improving people's visual experience when watching.

[0020] The encapsulation glue 50 is a layer of transparent epoxy glue coated on each of the LED lamp beads 20. The encapsulation glue 50 does not affect the light emission while also protecting the LED lamp beads 20, thereby strengthening the structural strength of the LED display screen.

[0021] Compared to existing technologies, the micro-pitch integrated packaging structure of the LED display provided by this utility model converges light emitted from the surface of the transparent glue 41 at a single point through the convex structure of the transparent glue 41, thereby improving image clarity. The optical-grade diffusion particles 42 mixed within the transparent glue 41 refract, reflect, and scatter the light emitted by the LED lamp beads 20, achieving a uniform light source and effectively reducing glare.

[0022] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A micro-pitch integrated packaging structure for an LED display, characterized by: The micro-pitch integrated packaging structure of the LED display screen includes a substrate, a plurality of LED lamp beads welded at intervals on the substrate, a layer of base glue covering between each of the LED lamp beads, a plurality of top glues arranged on the LED lamp beads, and a layer of packaging glue arranged on one side of the base glue. The base glue is a layer of black glue, the height of the base glue is lower than the height of the LED lamp beads, the top glue includes a layer of transparent glue, and a plurality of optical-grade diffusion particles mixed inside the transparent glue. The transparent glue has a convex structure, and the ratio of the top transparent glue to the optical-grade diffusion particles in each top glue is the same.

2. The micro-pitch integrated packaging structure of an LED display according to claim 1, characterized in that: The side of the substrate facing away from the LED lamp beads is fixed at the projection position by means of screws, buckles, etc.

3. The micro-pitch integrated packaging structure of an LED display according to claim 1, characterized in that: The distance between each of the LED lamp beads is between 0.8mm and 1.5mm.

4. The micro-pitch integrated packaging structure of an LED display according to claim 1, characterized in that: The two sides of the base glue abut against the opposite sides of two adjacent LED lamp beads.

5. The micro-pitch integrated packaging structure of an LED display according to claim 1, characterized in that: The transparent glue is applied to the center of the light-emitting surface of the LED lamp bead through a glue dispensing module.

Images