Transparent display board

Abstract

The present invention relates to a transparent display board. A transparent electrically-illuminated sign is disclosed. The transparent electrically-illuminated sign includes a first transparent board, a second transparent which is installed apart from the first transparent board at a certain distance, facing the first transparent board, a plurality of LEDs, a transparent electrode, a filling material which is transparent and filled between the transparent electrode and the second transparent board, and a controller. The transparent electrode is formed on one of both faces of the first transparent board as the transparent electrode is coated thereon, in which the face coated by the first transparent electrode faces the second transparent board. The transparent electrode forms at least more than one close circuit plate which is divided into a cathode plate and a plurality of anode plates. The cathode plate is connected by each cathode lead of the plurality of LEDs, which are separated from each other by a certain distance. The cathode plate forms a cathode power supply terminal at a certain position thereof to input power from the outside. The anode plates are correspondingly connected by the anode leads of the LEDs, respectively. Each of the anode plates forms an anode power supply terminal at a predetermined position thereof to input power from the outside. The controller is connected to the anode power supply terminals, such that it can control power supplied to the cathode and anode plates to turn on and off the LEDs. Therefore, the transparent electrically-illuminated sign configured to be thin and transparent can display moving images, as each LED is turned on and off, consuming low power.

Description

technical field [0001] The present invention relates to electrically illuminated signs, and more particularly to an electrically illuminated sign capable of displaying moving characters or image. Background technique [0002] Typically, a directional or advertising message can be communicated to the public by some means such as a standing sign or banner on which predesigned characters or images are displayed. While stand-up signs, banners etc. are commonly used for messaging, they have the disadvantage that they are only capable of displaying limited content that has been pre-designed; and they require additional electrical lighting to allow this content to be visible at night. [0003] There is another example of an electrically illuminated sign that can display various colored characters or images on it with its own light source, such as LEDs, or even set moving images on it. However, conventional electrically illuminated signs have a disadvantage in that they are relati...

AI Technical Summary

Problems solved by technology

Although standing signs and banners etc. are commonly used for messaging, they have the disadvantage that they can only display limited content that has been pre-designed; and they require additional electrical lighting to allow this content to be visible at night

However, a disadvantage of conventional electrically illuminated signs is that they are relatively thick because the wires must be routed at the rear and other components must be included therein to achieve a moving image

However, conventional transparent electro-illuminated signs have the disadvantages that: they cannot display moving images; and because the images are relatively dark and have stains on the acrylic, the images cannot be displayed clearly on the acrylic

That is, since the image is displayed by the reflected light of the light source, the displayed image is very dark

Also, since the amount of light received by the acrylic sheet varies depending on the distance between it and the light source, color spots appear on the acrylic sheet

Images