Display Backlighting

Display backlighting is used to illuminate LCDs (liquid crystal displays), as well as for machine vision, image scanning and task lighting. Unlike frontlights, which illuminate from the front, backlights usually produce illumination from the sides or from the back of the screen.

Types of display backlighting

You can choose from display backlighting in a range of colours (including white, green and yellow) and levels of brightness, depending on the application you need it for. The two main types of display backlight are:

  • LED (light emitting diodes) backlighting – this uses 10 to 18 LEDs arranged in a uniform pattern and usually provides white light.
  • CCFL (cold cathode fluorescent) backlighting – this uses a single straight glass tube, which works much like a normal fluorescent lamp.

Applications of display backlighting

As LCD screens are unable to illuminate themselves, they require a backlight to provide the illumination and make the image on the screen viewable. Apart from being used in computer displays, LCD televisions and smartphones, backlights are also used in small devices such as watches and pocket calculators to improve readability in low-light conditions.


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Description Price Backlight Type Backlight Colours Variable Brightness Number of Pins CCFL Dimensions Dimensions CCFL Diameter CCFL Length Height Width Series
RS Stock No. 758-8655
Mfr. Part No.EA LED55x31-W
SGD18.73
Each
units
LED White - 40 - 31 x 55mm - - 31mm 55mm -
RS Stock No. 168-3898
Mfr. Part No.BF22140-24B
SGD13.696
Each (In a Bag of 100)
units
CCFL White Yes 1 2.2 Dia. x 140mm - 2.2mm 140mm - - -
RS Stock No. 534-9877
Mfr. Part No.BF22140-24B
SGD21.46
Each
units
CCFL White Yes 1 2.2 Dia. x 140mm - 2.2mm 140mm - - -
RS Stock No. 168-3910
Mfr. Part No.BF3380-20B
SGD17.983
Each (In a Bag of 100)
units
CCFL White Yes 1 3 Dia. x 380mm - 3mm 380mm - - -
RS Stock No. 535-0007
Mfr. Part No.BF3380-20B
SGD26.93
Each
units
CCFL White Yes 1 3 Dia. x 380mm - 3mm 380mm - - -
RS Stock No. 168-3900
Mfr. Part No.BF26188-20B
SGD13.646
Each (In a Bag of 100)
units
CCFL White Yes 1 2.6 Dia. x 188mm - 2.6mm 188mm - - -
RS Stock No. 534-9899
Mfr. Part No.BF26188-20B
SGD21.46
Each
units
CCFL White Yes 1 2.6 Dia. x 188mm - 2.6mm 188mm - - -
RS Stock No. 168-3896
Mfr. Part No.BF20292-24B
SGD14.341
Each (In a Bag of 100)
units
CCFL White Yes 1 2 Dia. x 292mm - 2mm 292mm - - -
RS Stock No. 534-9849
Mfr. Part No.BF20292-24B
SGD22.47
Each
units
CCFL White Yes 1 2 Dia. x 292mm - 2mm 292mm - - -
RS Stock No. 168-3905
Mfr. Part No.BF26318-20B
SGD14.612
Each (In a Bag of 100)
units
CCFL White Yes 1 2.6 Dia. x 318mm - 2.6mm 318mm - - -
RS Stock No. 534-9956
Mfr. Part No.BF26318-20B
SGD23.69
Each
units
CCFL White Yes 1 2.6 Dia. x 318mm - 2.6mm 318mm - - -
RS Stock No. 534-9990
Mfr. Part No.BF3300-20B
SGD22.39
Each
units
CCFL White Yes 1 3 Dia. x 300mm - 3mm 300mm - - -
RS Stock No. 171-1881
Mfr. Part No.EA LED55X31-RGB
SGD29.028
Each (In a Box of 25)
units
LED Full Colour (RGB) - 40 - 31 x 55mm - - 31mm 55mm -
RS Stock No. 168-3908
Mfr. Part No.BF3300-20B
SGD14.612
Each (In a Bag of 100)
units
CCFL White Yes 1 3 Dia. x 300mm - 3mm 300mm - - -
RS Stock No. 758-8664
Mfr. Part No.EA LED55x31-RGB
SGD35.13
Each
units
LED Full Colour (RGB) - 40 - 31 x 55mm - - 31mm 55mm -
RS Stock No. 168-3901
Mfr. Part No.BF26214-24B
SGD19.808
Each (In a Bag of 100)
units
CCFL White Yes 1 2.6 Dia. x 214mm - 2.6mm 214mm - - -
RS Stock No. 797-2371
Mfr. Part No.BF20125-28B
SGD20.30
Each
units
CCFL White - 2 2 Dia. x 125mm - 2mm 125mm - - -
RS Stock No. 168-3906
Mfr. Part No.BF3100-20B
SGD13.646
Each (In a Bag of 100)
units
CCFL White Yes 1 3 Dia. x 100mm - 3mm 100mm - - -
RS Stock No. 168-3895
Mfr. Part No.BF20226-24B
SGD14.289
Each (In a Bag of 100)
units
CCFL White Yes 1 2 Dia. x 226mm - 2mm 226mm - - -
RS Stock No. 197-1282
Mfr. Part No.EA LED94x40-W
SGD46.997
Each (In a Tray of 7)
units
LED White - - - - - - - - EA DOGS104x-A
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