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. 197-1245
Mfr. Part No.EA LED36x28-ERW
MYR72.39
Each
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 534-9984
Mfr. Part No.BF3228-21B
MYR59.96
Each
units
CCFL White Yes 1 3 Dia. x 228mm - 3mm 228mm - - -
RS Stock No. 171-1889
Mfr. Part No.EA LED68X51-W
MYR99.089
Each (In a Box of 15)
units
LED White - 40 - 51 x 68mm - - 51mm 68mm -
RS Stock No. 168-3904
Mfr. Part No.BF26285-20B
MYR48.939
Each (In a Bag of 100)
units
CCFL White Yes 1 2.6 Dia. x 285mm - 2.6mm 285mm - - -
RS Stock No. 197-1268
Mfr. Part No.EA LED66x40-W
MYR109.12
Each
units
LED White - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1308
Mfr. Part No.EA LED94X67-GR
MYR151.12
Each
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 534-9833
Mfr. Part No.BF20226-24B
MYR73.95
Each
units
CCFL White Yes 1 2 Dia. x 226mm - 2mm 226mm - - -
RS Stock No. 197-1285
Mfr. Part No.EA LED94x40-A
MYR57.403
Each (In a Tray of 7)
units
LED Amber - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1232
Mfr. Part No.EA LED39x41-GR
MYR29.672
Each (In a Tray of 24)
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1283
Mfr. Part No.EA LED94x40-W
MYR180.23
Each
units
LED White - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1230
Mfr. Part No.EA LED39x41-W
MYR56.821
Each (In a Tray of 24)
units
LED White - - - - - - - - EA DOGS104x-A
RS Stock No. 168-3905
Mfr. Part No.BF26318-20B
MYR53.579
Each (In a Bag of 100)
units
CCFL White Yes 1 2.6 Dia. x 318mm - 2.6mm 318mm - - -
RS Stock No. 197-1305
Mfr. Part No.EA LED94X67-A
MYR128.81
Each
units
LED Amber - - - - - - - - EA DOGS104x-A
RS Stock No. 758-8734
Mfr. Part No.EA LED68x51-W
MYR112.13
Each
units
LED White - 40 - 51 x 68mm - - 51mm 68mm -
RS Stock No. 534-9906
Mfr. Part No.BF26214-24B
MYR85.10
Each
units
CCFL White Yes 1 2.6 Dia. x 214mm - 2.6mm 214mm - - -
RS Stock No. 197-1255
Mfr. Part No.EA LED40x33-A
MYR40.49
Each
units
LED Amber - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1233
Mfr. Part No.EA LED39x41-GR
MYR41.96
Each
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 168-3901
Mfr. Part No.BF26214-24B
MYR71.135
Each (In a Bag of 100)
units
CCFL White Yes 1 2.6 Dia. x 214mm - 2.6mm 214mm - - -
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. 197-1302
Mfr. Part No.EA LED94X67-W
MYR205.165
Each (In a Tray of 6)
units
LED White - - - - - - - - EA DOGS104x-A