EL Silicone Rubber Keypad and Membrane Switch

Cold light membrane  switch because of its uniform luminescence, continue to get manufacturers' favor.

The working principle of

The operating voltage and frequency of the cold light source can be adjusted from AC40V~AC220V, and the operating frequency can be from 50 hz to 4000 hz. Increasing the voltage will increase the brightness of the cold light, and increasing the frequency can also increase the brightness, and the color of the cold light source will feel blue.

The life of cold light

Cold light source is not like the general traditional light source will have a sudden death phenomenon, but after a long cycle of use, the brightness of cold light will gradually decline, voltage, frequency, temperature, moisture are important factors affecting the life of cold light.

Luminance of cold light

The brightness of cold light can be measured by photometer, so the brightness of cold light source is usually expressed in the unit of measurement of luminosity, but the human eye is not easy to achieve such sensitivity, usually visual sensation and photometer standard comparison, there will be a certain degree of error.

The power source of cold light

The generation of cold light source, is driven by a supporting design of transformer frequency converter (DRIVER), and drive the voltage and frequency of cold light plate, is in accordance with the size of the light plate area, use environment, life and other factors to consider the conditions to carry out professional supporting design development production.

The weight and thickness of the cold light

There is a very attractive main condition, is its weight and thickness, the weight of the cold light plate is 0.1 gram per square centimeter, and the thickness is 0.2mm~0.5mm, for some special requirements of the order, the weight and thickness of the cold light plate will change.

Bending toughness of a cold light plate

Another advantage of cold light plate is that it has good bending ability. Generally, bending above a radius of 2cm is acceptable. This bending toughness characteristic also endows cold light plate with more different USES in different environments.

The edge of the cold light seal

There should be at least 0.1cm of encapsulation around the edge of luminescent luminescent masters, too narrow encapsulation will cause subtle changes in the life of luminescent, so it is recommended that the basic width of the seal should be kept appropriate.

Fold edit this section specification feature

The principle of luminescence of EL cold light plate

The luminescence principle of EL cold light plate is that the material layer converts electric energy into light, as shown in the figure below:

EL service life

Cold light plate type: elastic sheet driven by alternating current frequency conversion.

Luminance standard: plus or minus 20% of the required value, half-life life :5000~10000 hours.After the half-life, the brightness will slowly decline, and the 10,000-20,000 hour life will end.

Electrical characteristics

General operating voltage :AC 20~180V volts, maximum permissible operating voltage :AC 200V.Maximum operating frequency :3000 hz, power consumption: 0.0013 amperes per square inch (115 volts, 400 hz).Driver: variable frequency voltage AC output supply, maximum luminosity of cold light plate :700~1000LUS.

Hardware design

At present, the maximum production size and area of a single cold light sheet is :100*200 cm or less. The process is mature, which is larger than this specification and has lower brightness.

Through seamless splicing technology, cold light can achieve arbitrary specifications.

Cold light thickness :0.5 mm.General margin seal :1-2 mm.

Cold light film color

The basic standard luminescence colors are: green, blue-green, blue, white foundation.In addition to the basic color, in a certain range, through the combination of special ink dye and color printing, it can make a bright and dazzling effect.

Cold light slice size

At present, the maximum size of cold light sheet is 100*200 cm, and the most stable performance is within the single sheet area.

Frequency transformer

In the power supply mode of LCDS drivers, we can design according to customer requirements: for example:

1. You can use the dry battery DC 3, 6, 9, 12V power supply to design the driver to drive the luminescent sheet

2. You can use the DC 12, 24V and 48V power sources of automobiles and locomotives to design drives to drive the luminescence of cold light plates

3. You can use the indoor power supply AC110~230V to design the driver to drive the luminescent sheet

function

In addition to the function of constant brightness and flicker, it can also be presented by the mode of cross light source or multi-section flashing lamp.

Fold and edit the scope of this section

I. Backlight application:

All kinds of computers, laptops, handheld games machines, telephones, electronic notepads, electronic dictionaries, audio equipment control panel, microwave oven control panel, fax machines, photocopiers, watches...And so on.

Ii. Automobile industry

Automobile instrument panel, warning light, vehicle body, door railing decoration, the third brake light...And so on.

Iii. Architectural and indoor applications:

Elevator floor mark, escape sign mark, wall lamp decoration, building night landscape decoration, interior decoration.

Iv. Safety and lifesaving

At night, public security and traffic police wear cold-light warning clothes, night safety signs, life-saving instructions, ships, docks, etc.

Military and aerospace applications:

Military map backlight, instrument backlight, airport runway night wheel indicator, night identification indicator, ground guidance.

Vi. Advertised goods

Application of commodity promotion, publicity, election publicity, motorcade publicity, advertisement publicity.

Vii. Toys and gifts

All kinds of toy light source, luminous photo frame, cold light photo, valentine card, badge and other consumer products application.

Viii. Business equipment and tools in public places:

Bus stop signs, public telephone booths, coin-operated beverage machines, bus route signs...Etc.