JP3289400B2 - LED module - 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 module in which a plurality of LEDs (light emitting diodes) are mounted in a matrix.

[0002]

2. Description of the Related Art Conventionally, as shown in front and side views in FIGS. 3A and 3B, a plurality of LEDs are mounted in a matrix at a predetermined pitch to display characters, figures, and the like. Modules (LED display elements having a basic unit configuration) are known.

[0003]

When a large number of the above-mentioned LED modules are used side by side, in order to improve the appearance, the LED is mounted without changing the pitch at which the LEDs are densely mounted.
The outer dimensions of the LED substrate cannot be made larger than the LED display surface because the ED display surface needs to be adjacent. Also, L
A fine circuit pattern cannot be used for each LED of the ED module because a predetermined current needs to flow. For this reason, in the LED module, the electrical connection between the LED board on which each LED is mounted and the control circuit board for driving each LED has been achieved by using the LED terminals as they are. Therefore, the mounting and mounting of the LED is expensive and automation is difficult. Also, since the electrical connection between the LED board and the control circuit board is by soldering the LED terminals, if a failure occurs after assembly, the LED
It was not possible to replace the board or control circuit board unit.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to reduce costs by automating the mounting of LEDs in an LED module and to facilitate replacement of a board unit. It is.

[0005]

According to an embodiment of the present invention, there is provided an LED module for displaying characters, figures, and the like on an LED display surface on which a plurality of LEDs are arranged in a matrix at a predetermined pitch. An LED board on which the LED is mounted and provided with a connecting space that is larger than the outer dimensions of the LED display surface in at least one side direction, and a control circuit board for driving the LED corresponding to the LED board; A connector for electrically connecting the LED board and the control circuit board by utilizing the connecting space of the LED board, wherein when the LED display surface is arranged adjacent to the LED,
The LEs are so arranged that the heights of the substrates adjacent to each other in the direction in which the connecting space is provided are different from each other.
D The height of the mounting is changed.

[0006]

According to the above means, the LED board is electrically connected to the control circuit board via the connector.
Mounting is performed only on the LED substrate alone, which facilitates automation. LED boards adjacent to each other in the direction in which the connecting space is provided do not hinder each other because the LED mounting heights are different, and a large L with good appearance is provided.
An ED display surface can be obtained.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to specific embodiments. FIG. 1 is a side view showing a state in which three LED modules according to the present invention are adjacently combined. FIG. 2 shows the LED module of the combination of FIG. 1 in 10 rows (3 × 10
FIG. 5 is an explanatory diagram showing an arrangement state of LED display surfaces that are adjacently combined. The LED module 10A mainly includes an LED board 13A on which 256 (= 16 × 16) LEDs 11A are mounted in a matrix and a control circuit board 16A.
Consisting of The LEDs 11A are held at equal intervals by a partition plate 12A, and are arranged with a good appearance. L above
The ED substrate 13A has a connecting space 131A enlarged in one side direction. Also, the LED board 1
A control circuit board 16A is integrally provided on 3A via a spacer 15A made of resin. Various circuit components 17A for driving the LED 11A are mounted on the control circuit board 16A. LED board 13A
The connecting space 131A and the corresponding control circuit board 16A are electrically connected via the connector 14A.

The LED module 10B has the same basic configuration as the LED module 10A, and uses the same reference numerals as those of the corresponding components except that A is replaced with B, and a description thereof will be omitted. Here, the LED module 10
B indicates that the mounting height of the LED 11B with respect to the LED board 13B is the LED 11A of the LED module 10A.
Is different from the mounting height of the LED board 13A.

The LED substrate 13 of the LEDs 11A and 11B
Since the mounting height with respect to A and 13B is changed, even when the LED module 10A and the LED module 10B are combined, the connecting space 131B of the LED board 13B does not contact the adjacent LED board 13A. The LED boards 13A and 13B are electrically connected to the control circuit boards 16A and 16B using the connecting spaces 131A and 131B. For this reason, the LED module of the present invention can be easily automated because it is only necessary to mount the LED on the LED substrate only,
The ED board and the control circuit board are firmly fixed, and the electrical reliability is improved. In addition, the LED board and the control circuit board are detachable because they are connected by a connector, and maintenance such as board replacement becomes extremely easy.

[0010]

As described above, even if a connecting space is provided outside the LED display surface by changing the mounting height of the LED with respect to the LED substrate, the adjacent LEDs can be provided.
Since there is no contact between the substrates, a large number of LED modules can be arranged to form a large-sized large-sized LED display surface. At this time, since the LED need only be mounted on the LED substrate only, the cost can be reduced by automation. Further, since the electrical connection between the LED board and the control circuit board is made by a connector, it is easy to attach / detach / exchange the boards.

[Brief description of the drawings]

FIG. 1 is a side view showing a state in which three LED modules according to a specific embodiment of the present invention are adjacently combined.

FIG. 2 is an explanatory diagram showing an arrangement state of LED display surfaces in which 3 × 10 LED modules according to the embodiment are adjacently combined.

FIG. 3 is an external view showing a conventional LED module.

[Explanation of symbols]

 10A, 10B: LED module 11A, 11B: LED 13A, 13B: LED board 131A, 131B: Connecting space 14A, 14B: Connector 16A, 16B: Control circuit board

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI H05K 1/18 H05K 1/18

Claims (1)

(57) [Claims] 1. An LED module for displaying characters, figures, and the like on an LED display surface in which a plurality of LEDs are arranged in a matrix at a predetermined pitch, wherein the LED is mounted and at least larger than the outer dimensions of the LED display surface. An LED board provided with a connecting space by enlarging in one side direction, a control circuit board for driving the LED corresponding to the LED board, and using the connecting space of the LED board, the LED board and the A connector for electrically connecting the LED display surface to the control circuit board;
The D substrate is so formed that the heights of adjacent ones in the direction in which the connecting space is provided are different from each other.
LED module characterized by changing the height of ED mounting.