Light Guide Panel


A light guide panel (LGP) is an acrylic light guide panel made form pure Poly (methyl methacrylate) (PMMA) resin. It has two main sections:


  1. The bottom section where either a dot matrix is printed or a line matrix is scratched.
  2. The edges where the light source is installed.


At any given instance,when light source is directed towards the light guide panel,the light is distributed evenly over the upper surface of the panel.

It was mainly designed to optimize the uniformity of light distribution,which makes the backlight slim and as a result,reorients the line or dot light source (e.g. from LED or fluorescent lamp) to the plate light source.

There are a number of LGP which have been designed to be used for in-store decorations,lighting equipment etc.

In situations where they have been designed to use LED as the main source of energy,they can reduce the power consumption significantly.


LED acrylic light guide panel

The light guide panels have quite a number of specifications which you need to consider when you are planning to purchase them for any application.

In this case,the choice of material is never an element to consider since all LGP are manufactured from acrylic material however,they vary in both thickness and weight.

For instance,the most common types of LGP have a thickness between 5mm and 8mm with the weight varying between 10kg and 22kg.

This does not imply that these are the only sizes which are available in the market.Different companies design light guide panels of different sizes.


Light Guide Panel process

You need to know the exact surface pattern of LGP you would wish to buy.

Broadly,there are two most common types of surface patterns which can be classified as:a one sided light emission with a back side dot pattern and a two-sided light emission with both faces with a dot pattern.

Of course,there is a lot of scientific research going on in the LGP industry with an attempt to produce cost effective and efficient products.

For instance,the introduction of slim LGP which had been designed to be used with LED sign boards did revolutionize this industry.

Since then,most products which have so far been launched feature the edge-light system (ELS).


LED acrylic light guide panels

The ELS-LGP are commonly used in a number of indoor and outdoor applications.

It is worth noting that these products are thinner and have the capability of illuminating a larger surface area.

Moreover,they are cost effective since they have reduced the installation costs and the running costs.

In fact,with the advancement of the LGP technology,sign boards which are as large as 1.5m by 2.3m can be illuminated conveniently.

sign board made of light guide panel



To improve their effectiveness,they are also fitted with a reflective sheet.

This basically implies that whenever light is emitted from the source,it travels through the panel in a controlled manner within the interior of the LGP.

It is again radiated via the diffusion sheet which is part of the panel’s surface.

Polycarbonate LED Light Diffuser sheet

The major advancements in this industry have been focusing mainly on the following key areas:


1.The ability to make very thin sign boards using the available light guide panels.

This can only be realized by not attaching luminous sources to panel’s edge.


2.It eliminates the patchy appearance which is a common scenario with fluorescent sign boards by ensuring an even distribution of light.

3.Introducing eco-friendly products by ensuring that small amount of energy is used in the entire process and reducing the carbon dioxide emissions.

In addition to these,the recent development has also championed for the use of mercury free light sources.


4.It has reduced costs significantly by replacing fluorescent light sources with LEDs which has a longer service life thereby reducing maintenance costs significantly.

Light Guide Panel

Buyers can choose from the three combination of products which are available in the market which include:acrylic LGP which a diffusion sheet;acrylic LGP with both LED modules.

It follows that,this technology is really essential in creating billboards,information boards,hanging signs, in-store menu signs etc.

The main features which are associated with the light guide panels include:


They are energy efficient

The cost of energy has been increasing in the recent past thus,any process which can save significant amount of energy ought to be implemented.

The use of LEDs as opposed to fluorescent lamps can reduce energy consumption by between 70% and 80%.This has been one of the main reasons why a number of companies have been adopting this technology.

fluorescent lamps


The LEDs which are used in the LGP operate at about 2°C above the room temperature in most cases.

This reduces the risks of fire.This is not the case for the fluorescent lamps which dissipate a lot of heat.

Reduced maintenance costs

LEDs have a longer life span that the ordinary fluorescent lamps.This reduces the maintenance costs significantly since the service life of LEDs is ten times more than the fluorescent lamps.

In addition to these,it is also important to note that LGP are transparent since they are constructed using acrylic thus,they can achieve a transmittance of about 92%.

It is quite evident that this technology has quite a number of advantages more so when it is being used as a way to advertise products and services.

LED acrylic panel


This is due to its efficiency,reliability and cost effectiveness.

To enjoy all the benefits they are associated with,there is only one way to go about the entire process.

You need to get a professional and a reputable company which will take you through the entire design process and the implementation.

Get the LGP products from Excelite since you will get a professional guidance about light guide panels.

There are quite number of companies which claim to offer such products however,what makes Excelite to standout is their commitment to ensure that all customers get quality products and essential resources they need.


Light Guide Panel date