CN111105726A

CN111105726A - LED display screen with visual angle

Info

Publication number: CN111105726A
Application number: CN202010038560.1A
Authority: CN
Inventors: 赵军辉; 李大发
Original assignee: Shenzhen Shenghuihuang Electronics Co ltd
Current assignee: Shenzhen Shenghuihuang Electronics Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-05-05

Abstract

The invention discloses a visual-angle LED display screen, which comprises a first PCB panel and a second PCB panel, wherein the top surface of the second PCB panel is uniformly and fixedly connected with honeycomb hole ceramic pieces at equal intervals, the top of the second PCB panel and the positions of gaps between the honeycomb hole ceramic pieces are fixedly connected with light-emitting diodes, the positions of the gaps between the honeycomb hole ceramic pieces and the positions above the light-emitting diodes are filled with a diffusion agent colloid, the top of the honeycomb hole ceramic piece is fixedly connected with a honeycomb hole aluminum sheet, two sides of the top of the second PCB panel are uniformly provided with pins, and the bottoms of the pins penetrate through and extend to the lower side of the first PCB panel. The LED display screen with the visual angle achieves the effects of realizing the consistency of the colloid surface of an LED device and generating 120-degree visual effect, and is simple in process and low in cost.

Description

LED display screen with visual angle

Technical Field

The invention relates to the technical field of LED display screens, in particular to an LED display screen with a visual angle.

Background

The surface of a colloid of the traditional LED device is flat, the roughness is small, and when the traditional LED device is manufactured into an LED display screen, the surface of the whole display screen is easy to reflect light, so that the light emitting effect of the whole LED display screen is influenced; on the other hand, the colloid surface of the LED device is flat, and the glare phenomenon is easy to form. Therefore, if the problem of light reflection on the surface of the LED device is to be solved, diffuse reflection is realized, and the light emitting effect of the whole LED display screen is improved, the consistency of the surface of the colloid of the LED device needs to be increased.

The LED display screen is provided with the LED device which directly packages the light emitting diode on the surface of the PCB, can realize the diffuse reflection on the surface of the LED device, and solves the problems of small light-emitting angle, poor appearance consistency and the like of the display screen, which is the technical problem to be solved in the field at present.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the LED display screen with a visual angle, and solves the problems that the traditional LED display screen cannot directly package a light-emitting diode on the surface of a PCB (printed Circuit Board) and an LED device, cannot realize the consistency of the surface of colloid of the LED device, cannot generate a 180-degree visual effect, and cannot realize the diffuse reflection of the surface of the LED device.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a visual angle's LED display screen, includes first PCB panel and second PCB panel, the even and equidistant fixedly connected with honeycomb holes potsherd of top surface of second PCB panel, the top of second PCB panel just is located the equal fixedly connected with emitting diode in gap position between the honeycomb holes potsherd, the top packing that gap position between the honeycomb holes potsherd just is located emitting diode has the diffusant colloid, the top fixedly connected with honeycomb holes aluminum sheet of honeycomb holes potsherd, the both sides at second PCB panel top evenly are provided with the pin, the bottom of pin is run through and is extended to the below of first PCB panel.

Preferably, hexagonal nuts are arranged on the periphery of the lower portion of the first PCB panel.

Preferably, the diffusant colloid is formed by mixing a diffusant and a filling colloid.

Preferably, the filler colloid is a bisphenol a-type epoxy colloid, an aromatic epoxy colloid, an alicyclic epoxy colloid, or a modified epoxy colloid.

Preferably, the viscosity of the filling colloid at normal temperature is 1800-2200 mPa.s.

Preferably, the particle diameter of the dispersing agent is 0.3 to 1 μm.

Preferably, the mass ratio of the dispersing agent to the filling colloid is 5-10%.

A packaging method of an LED display screen with a visual angle comprises the steps of assembling, packaging and hardening, wherein in the packaging step, a dispersing agent is added into a prepared filling colloid to be stirred, and then glue is dispensed. In the hardening step, the furnace temperature is increased from room temperature until reaching the hardening temperature of the filling colloid, the viscosity of the filling colloid is increased from high to low, and then the filling colloid is increased until the filling colloid is solidified; the filling colloid is any one of bisphenol A epoxy colloid, aromatic epoxy colloid, alicyclic epoxy colloid or modified epoxy colloid; and at normal temperature, the viscosity of the filling colloid is 1800-2200 mPa.s, and the heating duration is 15-20 minutes.

(III) advantageous effects

The invention provides an LED display screen with a visual angle. The method has the following beneficial effects:

according to the LED display screen with the visual angle, as the diffusant is doped in the filling colloid during packaging, and as the density of the diffusant is smaller than that of the filling colloid, the diffusant is automatically and uniformly distributed in the filling colloid of the LED device, and after hardening, the diffusant is fixed in the filling colloid, the consistency of the surface of the colloid of the LED device can be realized, and a 180-degree visual effect is generated; the diffusant is added into the filling colloid, other special treatment is not needed, the density of the diffusant is smaller than that of the filling colloid, the diffusant can be uniformly dispersed in the hardening process of the filling colloid, the visibility of the colloid on the surface of the LED device can be improved, and the matte effect of the colloid on the surface of the LED device is achieved. The LED device obtained by packaging by the packaging method not only realizes the consistency of the colloid surface of the LED device and generates the visual effect of 120 degrees, but also has simple process and low cost.

Drawings

FIG. 1 is a front perspective view of the present invention;

FIG. 2 is a side perspective view of the present invention;

FIG. 3 is a perspective view of the bottom of the present invention;

FIG. 4 is a schematic exploded view of the present invention;

FIG. 5 is a cross-sectional view of the present invention;

FIG. 6 is a front view of the present invention;

FIG. 7 is a top view of the present invention;

FIG. 8 is a bottom view of the present invention;

FIG. 9 is a left side view of the present invention;

fig. 10 is a right side view of the present invention.

In the figure: the LED light source comprises a first PCB panel 1, a second PCB panel 2, 3 honeycomb-hole ceramic pieces, 4 diffusant colloid, 5 light-emitting diodes, 6 honeycomb-hole aluminum sheets, 7 pins and 8 hexagon nuts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides a technical solution: the utility model provides a visual angle's LED display screen, including first PCB panel 1 and second PCB panel 2, the even and equidistant fixedly connected with honeycomb holes potsherd 3 in top surface of second PCB panel 2, the top of second PCB panel 2 just is located the equal fixedly connected with emitting diode 5 in gap position between honeycomb holes potsherd 3, the top packing that gap position between honeycomb holes potsherd 3 just is located emitting diode 3 has diffusant colloid 4, honeycomb holes potsherd 3's top fixedly connected with honeycomb holes aluminum sheet 6, the both sides at second PCB panel 2 top evenly are provided with pin 7, pin 7's bottom is run through and is extended to the below of first PCB panel 1. Hexagonal nuts 8 are arranged around the lower portion of the first PCB panel 1. The diffusant colloid 4 is formed by mixing a diffusant and a filling colloid. The filling colloid is bisphenol A epoxy colloid, aromatic epoxy colloid, alicyclic epoxy colloid or modified epoxy colloid. The viscosity of the filling colloid is 1800-2200 mPa.s at normal temperature. The particle diameter of the dispersing agent is 0.3-1 μm. The mass ratio of the dispersing agent to the filling colloid is 5-10%.

A packaging method of an LED display screen with a visual angle comprises the steps of assembling, packaging and hardening, wherein in the packaging step, a dispersing agent is added into prepared filling colloid for stirring, and then glue is dispensed. In the hardening step, the furnace temperature is increased from room temperature until reaching the hardening temperature of the filling colloid, the viscosity of the filling colloid is increased from high to low, and then the filling colloid is increased until the filling colloid is solidified; the filling colloid is any one of bisphenol A epoxy colloid, aromatic epoxy colloid, alicyclic epoxy colloid or modified epoxy colloid; and at normal temperature, the viscosity of the filling colloid is 1800-2200 mPa.s, and the heating duration is 15-20 minutes.

Compared with the prior art, the LED device has the advantages that the high-density diffusant is added into the filled colloid, so that the surface of the filled colloid can be roughened, the effect of surface consistency is realized, the diffuse reflection of the surface of the LED device can be realized when the filled colloid is applied to an LED display screen, the display angle of the whole LED display screen is good, and the problem of poor light emitting effect of the display screen in the prior art is solved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A visual angle LED display screen comprises a first PCB panel (1) and a second PCB panel (2), and is characterized in that: the top surface of second PCB panel (2) is even and equidistant fixedly connected with honeycomb holes potsherd (3), the top of second PCB panel (2) just is located the equal fixedly connected with emitting diode (5) in gap position between honeycomb holes potsherd (3), the top packing that gap position between honeycomb holes potsherd (3) just is located emitting diode (3) has diffusant colloid (4), the top fixedly connected with honeycomb holes aluminum sheet (6) of honeycomb holes potsherd (3), the both sides at second PCB panel (2) top evenly are provided with pin (7), the bottom of pin (7) is run through and is extended to the below of first PCB panel (1).

2. A visual angle LED display screen according to claim 1, wherein: hexagonal nuts (8) are arranged on the periphery of the lower portion of the first PCB panel (1).

3. A visual angle LED display screen according to claim 1, wherein: the diffusant colloid (4) is formed by mixing a diffusant and a filling colloid.

4. A visual angle LED display screen according to claim 3, wherein: the filling colloid is bisphenol A epoxy colloid, aromatic epoxy colloid, alicyclic epoxy colloid or modified epoxy colloid.

5. A visual angle LED display screen according to claim 4, wherein: the viscosity of the filling colloid is 1800-2200 mPa.s at normal temperature.

6. A visual angle LED display screen according to claim 3, wherein: the particle diameter of the dispersing agent is 0.3-1 μm.

7. A visual angle LED display screen according to claim 3, wherein: the mass ratio of the diffusant to the filling colloid is 5% -10%.