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Bi-stable Cholesteric Displays

BCD for Supermarket Colour Price Label
BCD for Supermarket Colour Price Label

BCD for Supermarket Colour Price Label
BCD for Supermarket Colour Price Label
BCD for Supermarket Colour Price Label
BCD for USB Memory Stick

Bi-stable Cholesteric technology is truly unique in that it doesn’t require any power to drive the display. Power is only necessary when the image is refreshed; image would be retained after power off. No Polarizer or backlight is needed without any viewing angle penalties, resulting in a thinner and lighter display. This makes it perfect for applications such as signage, price labels, e-books and USB memory sticks where updating is less frequent.

Key features:

  • High resolution (VGA, SVGA, XVGA or even higher)
  • Extreme wide viewing angles (nearly 180°)
  • Wide operating temperature range
  • Exceptional sunlight readability
  • Various colour combinations
  • Zero power consumption

We also offer the new frontlight option, which is integrated with white LEDs and a special light guide to provide the maximum efficient illumination with minimal power consumption in dark environment. Displays with such technology can be used at night too opening up a wider range of possible applications.

bcd with frontlight option
*BCD with frontlight option


For advice regarding a suitable display for your application, please contact us, we will be more than happy to assist.

*All Varitronix displays offer a range of backlight colour and temperature range options.

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# Dot Format (WxH)   Part No   Dot Size (WxH)   Dot Pitch (WxH)   Viewing Area (WxH)   Module Size (WxH)   Op Temp (°C)   Specsheet 
1 128 x 64 COG-BCD12864 0.415 x 0.415 0.43 x 0.43 61.0 x 31.4 66.0 x 78.4 N/A 
2 238 x 158 BCD238158 0.22 x 0.22 0.24 x 0.24 61.6 x 42.4 70.6 x 51.9 -20/70 
3 318 x 238 BCD318238 0.239 x 0.239 0.254 x 0.254 83.26 x 62.44 110.89 x 86.04 N/A 
4 478 x 638 BCD478638 0.185 x 0.185 0.2 x 0.2 101.0 x 133.0 108.5 x 140.5 N/A 
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