JPH10333617A - Led display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a LED display that has a LED and an electric control circuit built in and that can be brightly seen from all the directions, and further that can be directly fitted to an electric source of 100 V AC or 12 V DC, or the like, and further to provide a LED display that can be movable and stably installed by using the above LED display. SOLUTION: LED chips 2 are reinforced with a transparent resin 3, and are covered with a resin case 1 that has a parabolic surface for dispersing light and that is strong to impact so as not to intensify the convergence of light, and so as to be uniformly and brightly seen from the outside from all the directions. Further, an electric control circuit 5 is simultaneously incorporated so as to be directly used by the power supply usually utilized. An elastic tube is fitted on the upper surface of a tumbler, and a LED display is fitted on the elastic tube, so that a stable and safe LED display that is movable and is not rolling out to a road or the like can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention Lighting equipment using LEDs (light emitting diodes).

[0002]

[Prior art]

(B) With the conventional LED display, only one screen is displayed. (B) Incandescent lamps are used as alarm indicators for construction or danger locations that need to be displayed at all angles. (C) There is a triangular hat type setting device with a built-in incandescent bulb

[0003]

[Problems to be Solved by the Invention] (A) Conventional L
There is no ED display at an angle of 180 ° or more. (B) Incandescent lamps are fragile because of thin glass products, are susceptible to vibration and shock, have a limited life, and have large variations. The power consumption is 40 to 100 W and the power consumption is enormous in a wide range of construction sites. (D) It is susceptible to vibration and shock, and requires frequent replacement, which incurs management costs. (E) Since the voltage required for one LED is approximately DC2V, it cannot be used as it is when the voltage is 2V or more, such as AC100V or DC12V. There is

[0004]

[Means for Solving the Problems]

(B) A plurality of LEDs are mounted on a printed wiring board, combined with an electric control circuit, and covered with a resin case having a parabolic curved surface in which a diffusing agent such as alumina is mixed with a transparent resin having high impact resistance. (B) As a device for setting the LED display, the bottom portion is made to be durable, a resilient rod-shaped object is mounted on the bottom, and the LED display is mounted thereon.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION

(A) The light emitted from the LED is reflected again in the parabolic curved surface, and diffusely reflected by the diffusing agent in the transparent resin, and emerges on the surface. This makes the entire parabolic surface glow with the same brightness. (B) By incorporating an electric control circuit such as 100 V AC or 12 V DC or a simple switching regulator, it can be handled in the same manner as an incandescent lamp. (C) Stable alarm display even when touching a moving object by the impact resistant LED display and Darima structure

[0006]

【Example】

(A) When the H of the parabolic surface is smaller than a hemisphere as shown in FIG. 1, an LED chip is mounted as shown in FIG. An electric control circuit is combined on the back side and is shown in FIG. (B) When H of the parabolic surface is larger than a hemisphere as shown in FIG. 3, an LED chip is mounted on a printed wiring board as shown in FIG. 4, reinforced with a transparent resin, and two pieces are attached back to back. This printed board was made slightly smaller than D2 so that it could be inserted from the insertion opening 13 of the integrally molded case, and the position could be fixed by D2. The number of LED chips is determined by H and the size of the outer shape D1. The size of T changes depending on the size of D1. The electrical control circuit is adapted to enter the outlet 13. The LED printed wiring board and the electric control circuit are integrated, and are inserted into the insertion hole 12 from the mounting A and fixed. (C) As shown in FIG. 5, the condensed LED is mounted on several stages of printed circuit boards and illuminated like a ladybug. This is integrated with the electric circuit and placed in the cases of FIGS. (D) The resin case shown in FIGS. 1 and 3 can be formed by mixing a relatively transparent resin such as ethoxy, acrylic, polycarbonate, urethane, and ABS resins with a diffusing agent such as alumina powder. The mixing ratio satisfies the condition for reducing the variation in brightness and reducing the dimming.
Therefore, it is determined by the distance between the chips and the distance between the chip and the case. If the thickness of the case is small even if the distance is the same, the amount of the diffusing agent is increased. (E) An opaque material that diffuses and transmits light, such as polyethylene resin, is also used in the resin case. (F) In the case of an AC power supply as an electric control circuit As shown in FIG. 6, a simple structure is constituted by a diode bridge and a resistor. In the case of a 50 or 60 Hertz point reduction, as shown in FIG. 7, one diode and a resistor are used. (G) For blinking other than 50 or 60 Hz, as shown in FIG. 8, it is composed of a blitch, a resistor, a chip resistor, an electric field, a chip capacitor, a CMOS IC, and an FET transistor. When the frequency exceeds 200 Hz, the blinking cannot be confirmed by eyes, so that the power consumption becomes low and the heat generation is suppressed. Further, if it is made as shown in FIG. 9, it becomes a low power type blinking circuit. (H) It is possible to use a simple switching regulator circuit as a control circuit for 200 to 12 VAC. (I) In the case of a DC power supply, it can be achieved by a circuit in which an AC power supply circuit has a blitch or a diode removed. (V) The printed circuit board described here is made of glass epoxy, alumina, aluminum, and enamel. (D) A resilient cylinder such as rubber or polyurethane is attached to the head of Daruma, and the LED of claim 1 is attached to the tip.

[0007]

According to the present invention, it is possible to display light at a high angle like an incandescent lamp, and it is resistant to vibration and shock.
In the case of V, an LED display which consumes about 2 W, saves energy, has a low heat generation temperature, and has a longer life can be provided.

[Brief description of the drawings]

FIG. 1

[0006] (A) sectional view of the front

FIG. 2 of the present invention.

[0006] FIG.

FIG. 3 of the present invention.

[0006] (b) Cross-sectional front view

FIG. 4 of the present invention

[0006] (b) Cross-sectional plan view

FIG. 5 of the present invention.

(C) Front sectional view

FIG. 6 of the present invention.

(F) Electrical control circuit diagram

FIG. 7 of the present invention.

(F) Electrical control circuit diagram

FIG. 8 of the present invention.

(G) Electrical control circuit diagram

FIG. 9 shows the switch waveform obtained in FIG. 8 of the present invention.

FIG. 10 of the present invention.

1 is a resin case 2 is an LED chip 3 is a transparent resin 4
Is a printed circuit board 5 is an electric control circuit 6 is an insertion port 7 is an LED chip 8 is a transparent resin 9 is a printed circuit board 10 is an electric control circuit 11 is a resin case 12 is an insertion port 13 is an electric circuit insertion port 1
4 is a condensed LED 15 is a printed circuit board 16 is an electric control circuit 17 is a diode blitch 18 is a current limiting resistor 19 is an LED 20 is an AC power supply
21 is a diode 22 is a current limiting resistor 23 is an AC power supply 24 is an LED
25 is a diode blitch 26 and 27 are voltage distribution resistors 29 is an electrolytic capacitor
Reference numeral 30 denotes a transmitting circuit using a CMOS IC 31 denotes a resistor 3
2 is a FET transistor 33 is an LED 34 is an AC power supply 35 is a switch waveform 36 that blinks an LED generated by 30 36 is an energy-saving switch waveform that blinks an LED 30 and 37 is an energy-saving switch waveform that turns on an LED 30 1 LED display 39 is an elastic tube 40 is Daruma

Claims (2)

[Claims] 1. An LED display having a built-in LED and an electric control circuit so that light can be seen evenly from all directions. 2. An LED display which can be set stably by using an elastic rod and a daruma method.