A) LCD having cold cathode ray backlight is advantageous over the LED backlight LCD
B) Colour of an LCD television is produced by selectively shuttering the three primary colours relative to each other
C) The accuracy and quality of the resulting colours of the LCD are depended on the backlighting source
D) Both 'b' and 'c'
Correct Answer: D
Solution :
[d] LCD televisions produce a black and coloured image by selectively filtering a white light. The light was provided by a series of cold cathode fluorescent lamps (CCFLs) at the back of the screen. Today, most LCD-TV displays use white or coloured LEDs as backlighting instead. Millions of individual LCD shutters, arranged in a grid, open and close to allow a metered amount of the white light through.
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