JPH0687990U - LED display unit - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a highly reliable dot matrix LED display unit in which dot deviation does not occur between units even when a plurality of units are used in combination. [Structure] One side surface (A side and C side) of the outer peripheral portion of the mask frame 1
Of the LEDs 11 and 11 adjacent to each other, a protrusion 2 is formed between the adjacent LEDs 11 and 11 toward the outside of the side surface, and the opposing side surfaces (B surface and D surface) of the one side surface are adjacent to each other.
It is characterized in that a concave portion 3 that fits with the protruding portion 2 is formed between the EDs 11 and 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an LED display unit, and more particularly to a dot matrix LED display unit for transmitting information.

[0002]

[Prior art]

 A conventional technique will be described with reference to FIGS. 4 to 6. FIG. 4 is a perspective view of a conventional dot matrix LED display unit (hereinafter simply referred to as a unit), FIG. 5 is another conventional unit, and FIG. 6 is a top view of the unit for explaining problems in the conventional example. Is. As shown in FIG. 4, the unit according to the conventional example has the LED lamp 11 inserted into the matrix substrate 10, the drive substrate 13 is held by the LED lamp leads 12, and the electrical connection is made. Thus, the LED lamp 11 is fixed and the mutual interference of light between the LED lamps is prevented. The outer shapes of the mask frame 14, the matrix substrate 10 and the drive substrate 13 used at this time were square.

Further, the conventional example of FIG. 5 is a unit made by a COB (chip on board) method. The same functional parts as those in the embodiment of FIG. 4 are designated by the same symbols. In the figure, 15 is a radiator.

[0004]

[Problems to be solved by the device]

 By the way, for example, when a plurality of single units each having a square outer shape as shown in FIG. 5 are vertically arranged as shown in FIG. 6, the mounting accuracy of each unit 16, 17 to a fixed frame (not shown) is high. If it is bad, there is a case where the dot position shift occurs as shown in 18.

Therefore, an object of the present invention is to provide a highly reliable dot matrix LED display unit in which dot shift does not occur between units even when a plurality of units are used in combination.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides an LED display unit having a substrate in which a plurality of LEDs are provided on the entire surface in rows and columns, and between the adjacent LEDs on one side of the outer peripheral portion of the substrate. And a recess for fitting the protrusion between the adjacent LEDs is provided on the opposite side face of the one side face.

[0007]

[Action]

 As described above, the protrusion is provided on one side of the board and the recess is provided on the opposite side.Therefore, when using multiple units in combination, the protrusion and the recess fit together and the space between the units is reduced. No deviation occurs. Therefore, it is possible to prevent the dot shift of the LED and provide a highly reliable dot matrix LED display unit.

[0008]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. Here, a COB type dot matrix LED display unit will be taken up and described. 1 is a perspective view of a dot matrix LED display unit (hereinafter, simply referred to as a unit) according to the present embodiment, FIG. 2 is a top view of the unit of FIG. 1, and FIG. 3 shows a state in which a plurality of units of FIG. 1 are combined. It is a top view shown. The same functional parts as those in the conventional example shown in FIGS. 4 to 6 are designated by the same reference numerals.

As shown in FIG. 1, the unit of this embodiment uses the mask frame 1 having the outer shape shown in FIG. That is, in one side A surface of the outer peripheral portion of the mask frame 1, the outwardly projecting portion 2 is formed between the adjacent LEDs 11 and 11, and on the side B which is the side opposite to the side A, A recess 3 that fits with the protrusion 2 is formed. Similarly, a protrusion 2 and a recess 3 are formed on the C surface and the D surface, respectively.

In the unit of this embodiment as described above, the LED 11 is mounted on the matrix substrate 10 by the COB method, the mask frame 1 is attached, and the LED 11 is fixed to the radiator 15 together with the drive substrate 13. Further, the matrix substrate 10 and the drive substrate 13 are electrically connected to complete the unit.

In the above unit, a protrusion is formed on one side surface of the mask frame 1 and a recess is formed on the opposite side surface. Therefore, when a plurality of units are used in combination as shown in FIG. The portion 2 and the concave portion 3 are fitted to each other so that the unit is not displaced. Therefore, the dot shift of the LED 11 can be prevented as shown by the line D, and a highly reliable dot matrix LED display unit can be provided.

[0012]

[Effect of device]

 As described above, according to the present invention, even when a plurality of units are used in combination, the protrusions and the recesses are fitted to each other, and the displacement between the units does not occur. Therefore, dot deviation of LE D11 can be prevented, and a highly reliable dot matrix LED display unit can be provided.

[Brief description of drawings]

FIG. 1 is a dot matrix LE according to an embodiment of the present invention.
It is a perspective view of a D display unit.

FIG. 2 is a top view of the mask frame in FIG.

3 is a top view of a mask frame showing a state in which a plurality of units of FIG. 1 are combined.

FIG. 4 is a perspective view of a dot matrix LED display unit according to a conventional example.

FIG. 5 is a perspective view of a dot matrix LED display unit according to another conventional example.

FIG. 6 is a top view of a mask frame for explaining the problems of the conventional example.

[Explanation of symbols]

 1 Mask Frame 2 Projection 3 Recess 11 LED

Claims (1)

[Scope of utility model registration request] 1. An LED display unit having a substrate on which a plurality of LEDs are provided in vertical and horizontal rows on the entire surface, wherein L adjacent to each other on one side of an outer peripheral portion of the substrate.
A protruding portion facing the outside of the side surface is arranged between the EDs, and
The LED display unit is characterized in that recesses for fitting the protrusions are provided between the adjacent LEDs on the opposite side surfaces of the one side surface.