KR20020073757A - Method threof and Display Structure Of LED Module For Electric Light Plate - Google Patents

Abstract

PURPOSE: A LED module display structure of an electric bulletin board and its formation method are provided, to reduce the pixel size of LED module and to improve the resolution of an electric bulletin board. CONSTITUTION: The LED module display structure is such that a pixel lattice(14) is combined on a circuit board(10) in a body to allow the R-G or R-G-B LEDs(12) constituting the pixel unit by mutual light emitting combination, to be inserted and fixed by a module unit; the LEDs(12) of pixel unit are inserted between the pixel lattices(14) and mounted onto the circuit board(10) directly; and a transparent resin(16) is penetrated and solidified between the pixel lattices(14) where the LEDs(12) of pixel unit are mounted. The pixel lattice is made of an optically opaque material; and the circuit board comprises further a heatproof plate(30) connected with a base frame(20). Preferably the pixel lattice(14) has a size of the width of 1.6-3.2 mm and the height of 1.6-3.2 mm.

Description

LED module display structure of electronic board and method of forming the structure {Method threof and Display Structure Of LED Module For Electric Light Plate}

The present invention relates to an LED module display structure of a display board that can increase the resolution of the LED module constituting the pixel size of the display board and also reduce the work maneuver. More specifically, each LED constituting the pixel unit is arranged at a predetermined interval. Based on the installed pixel grid, the LED module display structure of the LED board can reduce the pixel size and the number of working hours of the LED module and significantly increase the resolution by integrating the transparent resin at once and processing the transparent resin at once. will be.

Light Emitting Diode (LED), a light emitting diode, is a semiconductor device that emits light when a direct current flows, and is a display device that converts an electrical signal into a light signal. An LED using the LED as a display means is an LED (Light Emitting Diode). By arranging the module arrays on the circuit board by a certain interval or color, the light-emitting pattern controlled by the computer is illuminated in all directions to display the corresponding character or figure.

That is, as shown in FIG. 4, the electronic display board using the LED as the display means includes a computer 130 for supplying and controlling image data for driving the electronic display board, and the image data output from the computer 130 in the pixel unit. The data divider 140 is divided and distributed by LED module, and the circuit board 110 and the base frame are displayed for each LED module to configure one large screen to turn on / off the LED based on the input image data. 120 to form an LED panel (LED Plate).

In addition, the LED module having a dot function that emits light like a pixel of a general TV has an LED 112 that emits three kinds of colors (RGB / Red-Green-Blue), respectively, to provide an electrical signal. Each LED is controlled to express the required color.If the type of LED 112 in the pixel of the LED module is Red and Green, it is a two-color electric signboard and a two-color gradation signboard. When added, it becomes a full color sign.

In addition, one LED module is a minimum unit capable of displaying data (English, numeric, Korean, and character information), and is typically composed of 256 LEDs 112 horizontally 16Dot × 16Dot. 64 mm (using 3 mm diameter LED), 96 mm × 96 mm (using 5 mm diameter LED), 128 mm × 128 mm (using 10 mm diameter LED), 160 mm × 160 mm (using 7.5 mm diameter LED), 280 There are 5 types such as ㎜ × 280㎜ (using 10mm diameter LED), and 8Dot × 16Dot is required to express English letters and numbers, so up to 2 characters can be displayed in one LED module. As necessary, one character can be displayed on one LED module.

In addition, there are various types of pixels, which are LED modules, but the quantity of LEDs varies according to their size, and in the past, Φ2.5, Φ3.0, Φ4.0, Φ5.0, etc. are used as a circle. Recently, however, squares (2.5mm to 6.0mm) are mainly used because the squares can reduce the gap when assembled, rather than circular, which can increase the resolution (Resoulution). The resolution changes, but one pixel forms a dot on the screen, and the smaller the pixel, the better the resolution.

Meanwhile, as shown in FIG. 3, the LED module display structure of the display board according to the prior art encapsulates each LED 112 of RGB, which constitutes the pixel of the display board, into a pixel cap 116 of a predetermined size. By forming LED modules, and arranging these LED modules on a circuit board at regular intervals, a light emitting pattern of pixel units of the electronic board was constructed, and the circuit board 110 having the LED modules patterned at regular intervals was formed on the base frame 120. Assembled and fixed to the LED board to form a light emitting display of each LED module by the control signal of the computer 130.

By the way, the resolution varies depending on the size of the pixel. When the size of one pixel is smaller, the resolution becomes better, the size limit of the pixel cap 116 that forms the external structure of the LED module in the LED module display structure so far. As a result, as well as the resolution is lowered, each LED module has to be mounted separately, there is a problem that the labor is inefficient.

Accordingly, the present invention is invented to improve the overall resolution of the LED display board while reducing the number of labors by improving the overall problems of the LED module display structure applied to the LED display panels up to now. LED module display of LED board that can reduce pixel size and workmanship of LED module and improve resolution at the same time by directly mounting on circuit board based on pixel grid arranged at intervals and integrating transparent resin at once. The purpose is to provide a structure.

1 is a schematic structural view showing the LED module display structure of the display board according to the present invention.

Figure 2 is a main structure showing an LED module display structure of the display board according to the present invention.

Figure 3 is a main structure showing the LED module display structure of the display board according to the prior art.

4 is a conceptual view of the operation of a general electronic sign.

Explanation of symbols on the main parts of the drawings

10: circuit board 12: LED

14 pixel grid 16 transparent resin

20: base frame 22: fixing screw

30: heat sink 32: frame assembly groove

In order to achieve the above object, the LED module display structure of the electronic display board according to the present invention is formed with a pixel grid so that LEDs of RG or RGB, which constitute the pixel unit while being combined with each other, can be inserted and fixed in module units, respectively. The LEDs are integrally coupled to each other, and pixel-by-pixel LEDs are inserted between the pixel grids and directly mounted on the circuit board, and the pixel-based LEDs penetrate (inject) and solidify transparent resin between the pixel grids on which the pixel-based LEDs are mounted. Characterized in that it is made to reduce the pixel size of the module.

In particular, the pixel crystallization that determines the pixel size of the LED module is characterized in that it is formed of a material that does not transmit light to block the light emitted from the LED module to increase the sharpness.

In addition, the pixel lattice has individual pixel sizes of 1.6 mm x 1.6 mm in minimum units of 1.6 mm x 3.2 mm, 2.4 mm x 2.4 mm, 3.2 mm x 3.2 mm, 2.4 mm x It is characterized by being formed including various forms of 4.8mm long.

In addition, the LEDs mounted on the circuit board are adhesively fixed to any one of wire bonding, thermocompression bonding, ultrasonic bonding, and laser bonding so as to increase the focusing density.

In addition, the circuit board is characterized in that the heat sink of the aluminum or other heat dissipating material or thin film form is integrally connected to the base frame to increase the heat radiation efficiency of heat generated from the LEDs.

Hereinafter, a preferred embodiment of the LED module display structure of the display board of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 shows a schematic structure showing the LED module display structure of the display board according to the present invention, Figure 2 is an enlarged view of the main portion A portion of Figure 1 showing the LED module display structure of the display board according to the present invention.

As shown in the figure, the LED module display structure of the display board of the present invention encapsulates each LED (112 in FIG. 3) that constitutes a pixel unit of the display board into a predetermined size pixel cap (116 in FIG. 3) (Capsulation Unlike conventional LED modules that are individually arranged on a circuit board, the LEDs 12 of RGB or RG are directly mounted on the circuit board 10 based on the pixel grids 14 arranged at regular intervals. By integrating the transparent resin 16 at a time as a whole, it constitutes an LED module (not shown) which is the minimum pixel unit of the display board.

First, LEDs 12 of RG or RGB, which are combined with each other by a control signal from a computer and constitute a pixel unit of an electronic board, are inserted into and fixed on the circuit board 10 in a module unit, and the transparent resin 16 is placed thereon. The pixel grid 14 is formed in a lattice net shape so that the minimum LED module can be formed by penetrating and solidifying the pixel grid. The pixel grid 14 is mounted on a circuit board 10 with the LEDs 12 mounted in a module unit. It is either fixed or integrally structured before processing.

Then, the LEDs 12 in pixels are directly inserted and mounted between the pixel grids 14, which are corresponding pixel positions on the circuit board 10 to which the pixel grids 14 are integrally integrated, and the LEDs 12 in pixels are mounted. The transparent resin 16 is penetrated and solidified by the resin impregnation method between the pixel grids 14, on which each of the pixel grids 14 is mounted, so that individual pixel grids 14 are divided into pixel units without encapsulation by a separate pixel cap. The LEDs 12 are formed together with the transparent resin 16 that is penetrated and solidified to form an LED module of a minimum unit.

In particular, the pixel crystal 14 to determine the pixel size of the LED module is preferably formed of a material that does not transmit light so as to block the light emitted from the LED module to increase the sharpness, and the circuit board 10 In order to increase the focusing density of the LEDs 12 mounted on the panel), the LEDs 12 of these LED modules are connected and fixed to the electric field through wire bonding to the control and driving circuit of the base frame 20. In some cases, adhesive bonding may be fixed to any one of thermocompression bonding, ultrasonic bonding, and laser bonding, not wire bonding.

In addition, the circuit board 10 is formed of a thin heat dissipation plate 30 of aluminum material having excellent heat exchangeability in order to increase heat dissipation efficiency of heat generated from the LEDs 12. It is integrally coupled to the bottom, the heat dissipation plate 30 is inserted into the frame assembly groove 32 is formed in the bottom of the circuit board 10 in contact with the base frame 20 is fixed and coupled to the fixing screw 22, The heat generated from the LEDs 12 during the operation of the electric light plate can be easily externally radiated through the heat sink 30.

On the other hand, the pixel grid 14 can form an LED module that is the minimum pixel unit of the electronic display board only by the LED 12 of the pixel unit by the impregnation of the transparent resin at least the pixel 12 LED can be inserted impregnation Preferably, the pixel grid 14 is formed between the individual pixel grids 14 by a pixel interval of. Thus, each pixel grid 14 has a width of 1.6 mm x 1.6 mm in a minimum unit of 1.6 mm x 3.2 mm. Various forms of mm, 2.4 mm x 2.4 mm, 3.2 mm x 3.2 mm, 2.4 mm x 4.8 mm can be selectively formed.

In addition, the LED module combines the basic three primary colors (RGB) of red, green, and blue in one pixel unit like a conventional electronic display board, and uses a full color full-color LED display board. It is also possible to configure, or by combining only red and green color may be configured a two-color gradation display board.

The scope of the present invention is not limited by the above embodiments, but only by the claims. It is apparent that the invention within the protection scope of the present invention can be easily modified and changed by those skilled in the art.

As described above, according to the LED module display structure of the display board according to the present invention, LEDs that constitute the pixel unit of the display board are encapsulated with a pixel cap of a predetermined size so that LEDs are individually arranged and mounted on a circuit board. Unlike the module, each LED constituting the pixel unit is directly mounted on the circuit board based on pixel grids arranged at regular intervals, and the transparent resin is penetrated and combined at once to reduce the pixel size and the labor of the LED module. As a result, as the pixel size of the LED module is reduced, the resolution of the signboard is dramatically increased.

Claims (6)

Pixel grids 14 are formed and integrated on the circuit board 10 so that the LEDs 12 of RG or RGB constituting the pixel unit can be inserted and fixed in module units, respectively. 12 are inserted between the pixel grids 14 and mounted directly on the circuit board 10, and transparent resin 16 penetrates between the pixel grids 14 on which LEDs 12 of pixel units are mounted. LED module display structure, characterized in that solidified. 2. The LED module display structure according to claim 1, wherein the pixel commutator (14) is an optically opaque material. The LED module display structure of claim 1, wherein the circuit board (10) further comprises a heat sink (30) in contact with the base frame (20). 4. The LED module display structure according to any one of claims 1 to 3, wherein the pixel grids (14) have individual pixel sizes of 1.6 mm to 3.2 mm in width and 1.6 mm to 3.2 mm in length. Forming a pixel grid 14 so that the LEDs 12 of the R-G or R-G-B constituting the pixel unit can be inserted and fixed in module units, respectively, and are integrally combined on the circuit board 10; Inserting pixel units of LEDs 12 between the pixel grids 14 and directly mounting them on the circuit board 10; And a step of injecting and solidifying transparent resin (16) between the pixel grids (14) on which the LEDs (12) of each pixel unit are mounted. The method of claim 5, wherein the LEDs 12 mounted on the circuit board 10 is adhesively fixed by any one of wire bonding, thermocompression bonding, ultrasonic bonding, laser bonding to increase the focusing density. Method of forming LED module display structure of electronic board.