Polyester Backlight 3M 468 Membrane Switch Keypad LCD Window

Back Light Membrane Switch with LGF function and LCD window

Working of Light Guide Film Technology

The thickness of the Light Guide Film ranges from 0.005 to 0.020”. The layer has microdots incorporated in it. These dots are pressed onto areas that are to brighten up once you supply power. This particular area is referred to as the imaged area.

In order to place the side view LEDs in the right location, manufacturers tend to perform cut-outs in the film. The side view LED generates light rays. These rays travel via the film and hit the microdots. When they make contact with microdots, they are refracted upwards towards the overlay surface. Thus, ensures uniformity in the backlighting effect. Something every LGF membrane switch user wants.

Advance Backlighting Solutions for Human-Machine Interaction

Human-Machine interaction design requires sophisticated and smart lighting solutions. Therefore, they greatly depend upon the Light Guide Film technology to yield effective and efficient results. After the LGF membrane switch offers the advanced functionalities required by this type of technology.

It is possible to place this thin layer onto the spaces and the metal domes to ensure uniform backlighting on every part of your product’s overlay. What more is that the layers do not add to the thickness of your product.

The reason being, the layer generally is 0.010 inches or thinner. You can incorporate the LGF layer that is only 0.005” thin. Do remember that the technology is effective when you want to backlight your product using the discrete LEDs as it uses fewer LEDs.

We simply can’t deny that this technology is an excellent choice for all your backlighting options. It requires fewer LEDs, thus resulting in limited power consumption and occupying less space. You would have ample space on the circuit layer to incorporate other components.

Membrane switch with LGF :

1.LGF is a thinner construction, without limited to devices thickness.
2.LGF has a limited impact on the tactile feel of buttons.
3.LGF can provide even backlight across larger and small areas.
4.Reliability and long lifetime, Low-Cost
Efficient power consumption and operating on lower voltage
5.Colors: White, Blue, Red, Green is a common choice.

 
Our Advantage:
 
We Focus in membrane switch and related items.
Strong R&D capability
Stable in quality
Competitive price
Short Lead time for samples and Mass production
Whole solution design available
 
Applications:
 
* home appliances and device
* Security Protection systems with Cipher Code
* Various industry control keypad panel
* consumer electronics and 3C item
* Thrapy medical system and device
Various automtic machine control keypad