11. SHORTCOMINGS OF PLASMA TV

Very high cost
Plasma TV sets are fright fully expensive with prices ranging from Rs 2,50,000 to 
Rs 9,00,000.

Power consumption is very high (up to 450W)
The power consumption of a plasma TV is as high as 450W. Philips has been able to bring the power consumption down to 200W.

Colour reproducibility is poor
Colour reproducibility of plasma TVs are poor due to spectra emission of colour phosphors and also due to luminescent orange emerging from neon. The problem of colour reproducibility has been tackled by NEC Japan by improving phosphors and with the capsulated colour filters (CCF).
            Capsulated Colour Filter technology improves colour response to provide the most realistic colour rendering available in plasma monitors. Capsulated Colour Filter (CCF) technology is a series of red, green and blue filters bonded within the panel's front glass substrate. CCF optimizes the colour spectrum of visible light emitted from the panel by attenuating unwanted spectral emissions associated with the ionization of gas within the individual pixels. CCF also incorporates a black matrix that helps the panel absorb external light, cuts down on reflections and improves the reproduction of black. The result is colour that is more true-to-life, enhanced contrast and a screen image that is perceptibly superior to other plasma monitors. This filter prevents spectra emission of the colour phosphors from the bottom device. Simultaneously these inhibits unwanted light including the luminescent orange emerging from neon. This improves colour purity and prevents reflection of external light, contributing the improvement in bright room contrast. This filter is also used in BPL plasma display.

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