Polarisation is a major problem with LCDs as the picture is hardly visible when viewed from corners or difficult angles. The LCDs may have its days numbered for the Carbon Nano Tube has the potential to function as an incandescent display. Amazingly, the response time for CNT films are low with comparison to LCD and since there is no polarisation (almost non-polarised), difficult angles are also taken care of.
There are no complications involved as a simply addressed circuit converts the CNT film into a high-end incandescent display. This display only takes a millisecond to be heated and equal time to be cooled when the heating voltage is cut off. This speedy response time is a consequence of a combination of the ultra small heat capacity per unit area (HCPUA), large surface area and large radiation coefficient.
The technology hasn’t been fully developed as the current success of the display is only limited to a single color. Further coating of low-work-function materials would help expand this technology to a color display. The fact that the fabrication process of CNT films is simple, energy efficient and less polluting in comparison with the LED displays also makes this development important. Electronic giants looking to meet the latest energy consumption standards could use the CNT films to achieve the same.
Via: Nanowerk
