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. 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. 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 -
New
RS Stock No. 197-1289
Mfr. Part No.EA LED94x40-ERW
MYR197.491
Each (In a Tray of 7)
units
LED - - - - - - - - - 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
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. 197-1245
Mfr. Part No.EA LED36x28-ERW
MYR72.39
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. 197-1305
Mfr. Part No.EA LED94X67-A
MYR128.81
Each
units
LED Amber - - - - - - - - EA DOGS104x-A
RS Stock No. 168-3897
Mfr. Part No.BF20325-24B
MYR51.025
Each (In a Bag of 100)
units
CCFL White Yes 1 2 Dia. x 325mm - 2mm 325mm - - -
RS Stock No. 197-1268
Mfr. Part No.EA LED66x40-W
MYR109.12
Each
units
LED White - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1244
Mfr. Part No.EA LED36x28-ERW
MYR61.18
Each (In a Tray of 25)
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 168-3899
Mfr. Part No.BF22258-25B
MYR48.802
Each (In a Bag of 100)
units
CCFL White Yes 1 2.2 Dia. x 258mm - 2.2mm 258mm - - -
RS Stock No. 197-1227
Mfr. Part No.EA LED39x41-A
MYR20.387
Each (In a Tray of 24)
units
LED Amber - - - - - - - - EA DOGS104x-A
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. 168-3910
Mfr. Part No.BF3380-20B
MYR53.50
Each (In a Bag of 100)
units
CCFL White Yes 1 3 Dia. x 380mm - 3mm 380mm - - -
RS Stock No. 534-9978
Mfr. Part No.BF3100-20B
MYR94.89
Each
units
CCFL White Yes 1 3 Dia. x 100mm - 3mm 100mm - - -
New
RS Stock No. 197-1258
Mfr. Part No.EA LED40x33-ERW
MYR57.96
Each
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1246
Mfr. Part No.EA LED36x28-GR
MYR29.295
Each (In a Tray of 25)
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1270
Mfr. Part No.EA LED66x40-A
MYR42.13
Each
units
LED Amber - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1247
Mfr. Part No.EA LED36x28-GR
MYR42.13
Each
units
LED - - - - - - - - - EA DOGS104x-A