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cold cathode

   Also found in: Dictionary/thesaurus, Acronyms, Wikipedia 0.01 sec.
cold cathode
A cathode in a gas-filled electron tube that is not heated by a filament in order to excite the electrons and cause current flow. The voltage potential within the tube is sufficient to ionize the gas in the tube and cause current flow. For example, the backlights in many flat panel LCD screens are cold cathode fluorescent tubes (see CCFL). See cathode.
cold cathode [′kōld ′kath‚ōd]
(electronics)
A cathode whose operation does not depend on its temperature being above the ambient temperature.


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has begun making its compact spiral cold cathode fluorescent lamps (CCFLs) available at Tsann Kuen Group's chain stores, projecting the sales to account for 10% to 20% of its revenue in one to two years, according to company chairman, S.
These cutting-edge TVs use LEDs as their primary light source, rather than traditional Cold Cathode Fluorescent Lamps (CCFL).
The cold cathode florescent lamps (CCFL) eventually start to burn out and there are no replacements available anywhere in the marketplace.
 
 
 
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