Slim Lighting Board

Flexible Touch Sensor

Flexible Touch Sensor

Check out our new product group, the Flexible Touch Switch and see how you can use our technology for your type of product!

EL on Fabric

EL on Fabric

Now you can print EL fabric! Enhance your products with our electroluminescent panels.


Over 21 Years of Slim Lighting Board Manufacturing | Cochief Industrial Co., Ltd./h2>

Cochief Industrial Co., Ltd., since 1998, is a Slim Lighting Board manufacturer that is mainly focusing on designing and developing electro-luminescent product from Taiwan.

Cochief's RoHS certified and patented Slim Lighting Board are sold worldwide. Along with the newly introduced products, including electroluminescent keypads, flexible touch-switch, EL plates, EL inverters, light guide products, LED plates and lamps, Cochief has become a leading supplier with a great reputation.

Both with electroluminescent advanced technology and 21 years' manufacturing experience of EL Panels and Light Guide Film, Cochief ensures each customer's demands are met.

Slim Lighting Board

Bright pictures with the Slim Lighting Board

Slim Lightning Board
Slim Lightning Board


We developed a finished product using Light Guide technology to backlight posters or pictures which found a place in several exhibition booths of our customers. The thin screen (<10 mm) works with a Light Guide Plate and several LEDs applied on one side of the screen spreading an even light to let the transparent poster or picture appear bright and colorful. We are offering customizable sizes and designs – it is also possible to design round or curved devices.

Our posters are containing two layers: A semitransparent white bottom layer and a transparent layer of the picture with a combined thickness of 0.3mm – to achieve the best possible result, we are recommending this concept. Also contact us to help you with the design and production of your picture or poster.

Our two bestsellers we have in stock are the Slim Lighting Screen A4 size and B6 size. Contact us if you need other sizes. Keep in mind that the norm size relates to the picture size – the outer frame is bigger.




Lighting area:

221 x 297mm

171 x 117mm

Frame size:

270 x 357mm

211 x 117mm




  • Easy to install, changeable poster
  • Two way: Place it on a table or hang it on a wall
  • Lightweight
  • Low power consumption for long duration application
  • Long lifetime
  • Low voltage
  • No Hg


  • Lifetime: 20.000 hours
  • Brightness: 318 nits / 1000 Lux
  • Light Uniformity: 70%
  • Operating Voltage: DC12V
  • Current: <300mA
  • Power: 4W
  • Operating Temperature: 10 ~ 50℃
  • Storage Temperature: 0 ~ 60℃
  • Operating Humidity: 10 ~ 90%RH
  • RoHS-Compliance
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Press Release