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. 758-8734
Mfr. Part No.EA LED68x51-W
MYR103.02
Each
units
LED White - 40 - 51 x 68mm - - 51mm 68mm -
New
RS Stock No. 197-1258
Mfr. Part No.EA LED40x33-ERW
MYR57.96
Each
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 534-9861
Mfr. Part No.BF20325-24B
MYR69.99
Each
units
CCFL White Yes 1 2 Dia. x 325mm - 2mm 325mm - - -
RS Stock No. 534-9906
Mfr. Part No.BF26214-24B
MYR71.74
Each
units
CCFL White Yes 1 2.6 Dia. x 214mm - 2.6mm 214mm - - -
RS Stock No. 534-9956
Mfr. Part No.BF26318-20B
MYR72.88
Each
units
CCFL White Yes 1 2.6 Dia. x 318mm - 2.6mm 318mm - - -
RS Stock No. 168-3906
Mfr. Part No.BF3100-20B
MYR41.168
Each (In a Bag of 100)
units
CCFL White Yes 1 3 Dia. x 100mm - 3mm 100mm - - -
RS Stock No. 197-1306
Mfr. Part No.EA LED94X67-GR
MYR129.697
Each (In a Tray of 6)
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1254
Mfr. Part No.EA LED40x33-A
MYR25.56
Each (In a Tray of 20)
units
LED Amber - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1245
Mfr. Part No.EA LED36x28-ERW
MYR72.39
Each
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 168-3983
Mfr. Part No.BF22160-24B
MYR43.68
Each (In a Bag of 100)
units
CCFL White - 2 2.2 Dia. x 160mm - 2.2mm 160mm - - -
RS Stock No. 201-0368
Mfr. Part No.AC 821
MYR47.54
Each
units
- - - - - - - - - - -
RS Stock No. 168-3898
Mfr. Part No.BF22140-24B
MYR53.70
Each (In a Bag of 100)
units
CCFL White Yes 1 2.2 Dia. x 140mm - 2.2mm 140mm - - -
RS Stock No. 197-1267
Mfr. Part No.EA LED66x40-W
MYR93.661
Each (In a Tray of 11)
units
LED White - - - - - - - - EA DOGS104x-A
RS Stock No. 534-9928
Mfr. Part No.BF26240-24B
MYR61.04
Each
units
CCFL White Yes 1 2.6 Dia. x 240mm - 2.6mm 240mm - - -
RS Stock No. 168-3895
Mfr. Part No.BF20226-24B
MYR48.802
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
MYR158.08
Each (In a Tray of 7)
units
LED White - - - - - - - - EA DOGS104x-A
RS Stock No. 168-3907
Mfr. Part No.BF3228-21B
MYR48.802
Each (In a Bag of 100)
units
CCFL White Yes 1 3 Dia. x 228mm - 3mm 228mm - - -
RS Stock No. 534-9833
Mfr. Part No.BF20226-24B
MYR64.88
Each
units
CCFL White Yes 1 2 Dia. x 226mm - 2mm 226mm - - -
RS Stock No. 168-3904
Mfr. Part No.BF26285-20B
MYR48.802
Each (In a Bag of 100)
units
CCFL White Yes 1 2.6 Dia. x 285mm - 2.6mm 285mm - - -
RS Stock No. 197-1232
Mfr. Part No.EA LED39x41-GR
MYR29.672
Each (In a Tray of 24)
units
LED - - - - - - - - - EA DOGS104x-A