What is CCFL

ByCynde Trombly 2020-01-04 885

CCFL backlight screen advantages and disadvantages CCFL full name Cold Cathode Fluorescent Lamp (cold cathode fluorescent tube), with high power, high brightness, low energy consumption and other advantages, widely used in display, lighting and other fields, filled with inert gas (including part of mercury vapor), the inner wall has a phosphor layer, the shape looks like a fluorescent tube, the head is a bit like a neon lamp in the city. Because CCFL lamp tube has the advantages of small lamp tube, simple structure, small temperature rise on the lamp surface, high surface brightness, easy to be processed into various shapes (straight tube, L-shaped, U-shaped, ring, etc.); long service life, good color rendering, uniform light emitting, etc., it is also an ideal light source for the current TFT-LCD (liquid crystal screen), and is widely used in advertising light boxes, scanners and backlights.


Before CCFL, mostly use EEFL backlight technology backlight, CCFL backlight technology and the following WLED are very mature technology, and RGB LED is still not very mature, to be exact, the design requirements are higher, so many third-rate manufacturers are difficult to design a good quality RGB LED backlight display.

CCFL backlight screen advantages: Low cost, simple manufacturing process and mature technology

CCFL backlight screen disadvantages: short life (fast aging), low luminous efficiency (power consumption), low brightness uniformity, low color purity, poor color level performance, not environmental protection, large size, high driving voltage, not resistant to impact. What is


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