JPH0573677U - Light emitting diode display - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a light emitting diode display device in which the light emitting diode can be easily attached to the board and the light emitting diode and the drive circuit can be easily connected. [Structure] The lead terminals of a plurality of light emitting diodes are sandwiched and soldered to the ends of a plurality of boards arranged in parallel, the light emitting diodes are arranged in a matrix form, and a drive circuit for driving the respective light emitting diodes to light is provided on the board. It is fixed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a light emitting diode display device capable of transmitting and displaying various information on a display surface in which a plurality of light emitting diodes are arranged in a matrix.

[0002]

[Prior Art]

 Conventionally, there are two types of static drive type light emitting diode display devices in which light emitting diodes which emit red, blue and green light are arranged in a matrix and each light emitting diode is individually driven to drive. There was a structure of. I. Light emitting diodes are arranged in a matrix on the substrate of the LED board to form a display surface, and a plurality of drive ICs for lighting and driving the respective light emitting diodes are mounted on a plurality of layers of drive boards arranged in parallel on the LED board. It is fixed. B. As described in Japanese Utility Model Application Laid-Open No. 25782/1982, the lead terminals of a plurality of light emitting diodes are bent at the ends of a plurality of drive boards arranged in parallel, and the lead terminals are soldered and fixed to the drive board. The display surface is formed by arranging them in a matrix.

[0003]

[Problems to be solved by the device]

 However, the above-mentioned conventional examples have the following problems. In the conventional example B, the number of wirings between the LED board and the drive board is large because the number of drive circuits for driving the light emitting diodes to light is required, and as a result, the connection between the LED board and the drive board is increased. It was difficult because it was crowded, and it was not suitable for static drive type LED display devices. In the conventional example (2), a jig for bending the lead terminal of the light emitting diode is required, and the bending work and the soldering work are very troublesome. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and provides a light emitting diode display device in which the light emitting diode can be easily mounted on the board and the light emitting diode and the driving circuit can be easily connected. Is.

[0004]

[Means for solving the problem]

 In order to solve such a problem, the present invention arranges the light emitting diodes in a matrix shape by sandwiching the lead terminals of the plurality of light emitting diodes by sandwiching the lead terminals of the plurality of light emitting diodes at the ends of the boards arranged in parallel. A drive circuit for lighting and driving each light emitting diode is fixed to each board.

[0005]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a light-emitting diode, which is provided with a light-emitting diode chip (not shown) that emits red, blue, and green light in a transparent resin lens 2, and three anode lead terminals 3a are provided from the bottom of the lens 2. , 3b, 3c and the cathode lead terminal 3d are extended. By using a plurality of the light emitting diodes 1, the lead terminals 3a, 3b, 3c and 3d of the respective light emitting diodes 1, 1, ..., 1 are inserted at the end of the drive board 4 to drive the terminals 3a, 3b, 3c and 3d. Soldered to the end of the board 4, the light emitting diodes 1, 1, ..., 1 are arranged in a row along the upper end of the drive board 4 toward the upper end of the drive board 4. Further, the drive board 4 is mounted on the side surface with soldering ICs 5a, 5b, 5c for driving respective light emitting colors for driving the respective light emitting diodes 1, 1, ... , 5b, 5c are connected by wiring to control lighting / extinction of each light emitting diode 1, 1, ... Connector boards 7a, 7a, ..., 7a and 7b, which are fixed to the lower surface of the drive boards 4, 4, ..., 4 and the upper surface of the main board 6 by soldering, are manufactured. , 4 are installed in parallel on the main board 6 via 7b, ..., 7b, and as a result, the light emitting diodes 1, 1, ..., 1 are arranged in a matrix. It forms the display surface. Further, each drive board 4, 4, ..., 4 is fixedly supported by passing support plates 8 to both end portions of the drive boards 4, 4 ,.

Thus, in the static drive type light emitting diode display device, the light emitting diodes 1, 1, ..., 1 and the driving ICs 5a, 5b, 5c are mounted on the drive boards 4, 4 ,. Therefore, the connection of the light emitting diodes 1, 1, ..., And 1 and the driving ICs 5a, 5b, 5c can be easily performed without crowding. Moreover, it is not necessary to bend the lead terminals in order to attach the light emitting diodes 1, 1, ..., 1 to the drive boards 4, 4 ,. Simply attach the terminals to the ends of the drive boards 4, 4, ..., 4 and fix them with solder. You can easily attach the LEDs 1, 1, ..., 1 and bend the LEDs 1, 1 ,. By reducing the work, the assembling work can be simplified.

[0007]

[Effect of the device]

 The present invention is constructed as described above, and the lead terminals of a plurality of light emitting diodes are sandwiched between the plurality of boards arranged side by side and fixed by soldering, and the light emitting diodes are arranged in a matrix. By fixing the drive circuit that drives the light-emitting diode to light up, the light-emitting diode can be easily attached to the board, and workability is very good. Further, since the light emitting diode and its drive circuit are mounted on one board, the light emitting diode and the drive circuit can be easily connected.

[Brief description of drawings]

FIG. 1 is a perspective view of a light emitting diode 1 used in a light emitting diode display device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a drive board 4 to which light emitting diodes 1, 1, ..., 1 are attached in the same light emitting diode display device.

FIG. 3 is a side view of the light emitting diode display device.

[Explanation of symbols]

 1, 1, ..., 1 Light emitting diode 3a, 3b, 3c, 3d Lead terminal 4, 4, ..., 4 Drive board 5a, 5b, 5c IC corresponding to drive circuit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichi Yamazaki 1825 Amemiya, Sarahaku City, Nagano MK Seiko Co., Ltd. Product Development Laboratory

Claims (1)

[Scope of utility model registration request] 1. The light emitting diodes are arranged in a matrix by sandwiching lead terminals of the plurality of light emitting diodes by sandwiching the lead terminals of the plurality of light emitting diodes arranged side by side, and driving the respective light emitting diodes on each of the boards. A light emitting diode display device having a drive circuit fixed thereto.