Traditionally, cathode-ray tubes (CRTs) were somewhat different, depending on whether they were being used for computer monitors or televisions.

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The source itself works a little like the cathode-ray tube of a television.

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TVs made with bulky cathode-ray tubes, initially made Japanese firms look bad.

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The red, green and blue components of the signal are fed into three separate high-definition cathode-ray tubes (in effect, fancy black-and-white televisions).

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The South Korean firm is among a number of manufacturers that have been accused of fixing prices of TV and computer monitor cathode-ray tubes.

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They're also brighter than cathode-ray displays, thanks to improvements in design and manufacture, as well as the introduction of blue LEDs, made widely available in the mid-1990s.

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When it came to scoreboards for sports stadiums, incandescent bulbs were no match for cathode-ray tubes (CRTs) used in the giant video displays pioneered by Sony and Mitsubishi.

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Early research involved a colleague lying in a deckchair in the night-time open air with a piece of string to measure the meteors, while he observed electromagnetic signals on a cathode-ray tube in a nearby hut.

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Unaudited consolidated financial results for the fourth quarter ending Dec. 31, 2012 showed a net loss of KRW 468 billion (USD 428.96 million) which reflects a fine related to alleged cathode-ray tube pricing issues imposed by the European Commission in December.

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The last century has seen only a few major display innovations, among them the move from black-and-white monitors to color and the introduction of flat, liquid crystal displays to replace cathode ray tubes.

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