JP2814031B2 - LED display device and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED display device and a method of manufacturing the same, and more particularly, to an LED display device which is waterproofed by being filled with two kinds of silicone resins.

[0002]

2. Description of the Related Art Conventionally, L used for outdoor units
ED display devices require waterproofing measures.Therefore, several LED display elements (hereafter referred to as elements) should be covered with an acrylic plate, etc., or a package made of silicon rubber should be attached to each unit. To achieve waterproofing.

[0003]

However, among the above-mentioned treatments, those in which the front surfaces of several elements are covered with an acrylic plate or the like are limited by the limitations on the standard size of the acrylic plate.
There is a problem that the size of the display device is limited and a display having a large display screen required by the market cannot be provided.

Although the size of the display screen can be freely set by attaching a package formed of silicon rubber to each element, there is a problem that the cost is increased by molding the silicon rubber, and a process of assembling into the element is also required. Is very difficult, and is not suitable for mass production. The present invention has been made in view of the above circumstances, and provides a novel LED display device which can realize a large-sized display device, can solve the cost increase, the problem of the manufacturing process, and the like, and a method of manufacturing the same. The purpose is.

[0005]

According to the present invention, there is provided an LED display device comprising: a frame; a driving board on which an LED display element incorporated in the frame is mounted; And a fluid silicone resin filled on the drive substrate.

In the manufacturing method, after a driving substrate having an LED display element mounted on a frame is assembled, a gap between the frame and the driving substrate is laid with a non-flowable silicone resin, and then the liquid flows over the driving substrate. It is characterized by being filled with conductive silicone resin. The non-fluid silicone resin is a one-liquid silicone resin, and the fluid silicone resin includes a two-liquid silicone resin.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of the LED display device, and FIG. 2 is a plan view of the same.

In FIG. 1, reference numeral 1 denotes a frame of an LED display device, for example, 16 × 16 or 24 ×
A drive board 3 on which 24 elements 2 are mounted in a matrix is incorporated. A non-fluid silicone resin 4 is lined up in the gap between the drive substrate 3 and the frame 1 as shown by hatching in FIGS. In particular, the use of a one-component quick-curing resin as the silicone resin 4 has an advantage that the seaming work process is simplified.

[0009] After the seaming operation, a fluid silicon resin 5 is filled on the drive substrate 3. In this case, a two-component thermosetting resin is preferably used as the fluid silicone resin 5.

[0010]

As described above, the LE according to the present invention is used.
In the D display device and the method of manufacturing the same, the gap between the frame and the drive substrate is laid with non-fluid silicone resin, and the drive substrate is filled with fluid silicone resin. There is no spillage from the gap, and curing can be performed quickly, which is very convenient for work. In addition, since fluid silicone resin was used for waterproofing the drive board,
Resin penetrates all over the drive substrate and elements, and this resin does not flow out of the non-fluid silicone resin. In addition, since the same silicone resin is used, the reliability as a whole is high.

Further, since a resin is used instead of a conventional molded product, the degree of freedom in the shape and structure of the drive substrate and the frame is increased, and the apparatus can be made larger. Further, since the operation is only for casting the resin, the process is simple, the molding cost is unnecessary, and the cost of the entire apparatus can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an LED display device according to the present invention.

FIG. 2 is a plan view of the LED display device according to the present invention.

[Explanation of symbols]

 1 Frame 2 LED display element 3 Drive board 4 Non-fluid silicone resin 5 Fluid silicone resin

Claims (6)

(57) [Claims] 1. A frame, a driving substrate on which an LED display element to be incorporated in the frame is mounted, a non-fluid silicone resin for filling a gap between the frame and the driving substrate, and filling on the driving substrate. An LED display device comprising a fluid silicone resin. 2. The LED display device according to claim 1, wherein the non-fluid silicone resin is a one-liquid silicone resin. 3. The LED display device according to claim 1, wherein the fluid silicone resin is a two-liquid silicone resin. 4. After incorporating a drive board on which an LED display element is mounted on a frame, a gap between the frame and the drive board is laid with non-fluid silicone resin, and then a flowable silicon is placed on the drive board. A method for manufacturing an LED display device, characterized by filling with a resin. 5. The method according to claim 4, wherein the non-fluid silicone resin is a one-liquid silicone resin. 6. The method according to claim 4, wherein the fluid silicone resin is a two-liquid silicone resin.