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. 534-9861
Mfr. Part No.BF20325-24B
MYR69.99
Each
units
CCFL White Yes 1 2 Dia. x 325mm - 2mm 325mm - - -
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. 168-3906
Mfr. Part No.BF3100-20B
MYR43.964
Each (In a Bag of 100)
units
CCFL White Yes 1 3 Dia. x 100mm - 3mm 100mm - - -
RS Stock No. 535-0007
Mfr. Part No.BF3380-20B
MYR85.03
Each
units
CCFL White Yes 1 3 Dia. x 380mm - 3mm 380mm - - -
RS Stock No. 197-1269
Mfr. Part No.EA LED66x40-A
MYR34.418
Each (In a Tray of 11)
units
LED Amber - - - - - - - - EA DOGS104x-A
RS Stock No. 534-9883
Mfr. Part No.BF22258-25B
MYR62.54
Each
units
CCFL White Yes 1 2.2 Dia. x 258mm - 2.2mm 258mm - - -
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. 197-1247
Mfr. Part No.EA LED36x28-GR
MYR42.13
Each
units
LED - - - - - - - - - EA DOGS104x-A
New
RS Stock No. 197-1258
Mfr. Part No.EA LED40x33-ERW
MYR57.96
Each
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 534-9877
Mfr. Part No.BF22140-24B
MYR78.20
Each
units
CCFL White Yes 1 2.2 Dia. x 140mm - 2.2mm 140mm - - -
RS Stock No. 534-9978
Mfr. Part No.BF3100-20B
MYR94.89
Each
units
CCFL White Yes 1 3 Dia. x 100mm - 3mm 100mm - - -
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. 197-1282
Mfr. Part No.EA LED94x40-W
MYR158.08
Each (In a Tray of 7)
units
LED White - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1255
Mfr. Part No.EA LED40x33-A
MYR40.49
Each
units
LED Amber - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1243
Mfr. Part No.EA LED36x28-A
MYR40.22
Each
units
LED Amber - - - - - - - - EA DOGS104x-A
RS Stock No. 534-9906
Mfr. Part No.BF26214-24B
MYR83.81
Each
units
CCFL White Yes 1 2.6 Dia. x 214mm - 2.6mm 214mm - - -
RS Stock No. 534-9833
Mfr. Part No.BF20226-24B
MYR73.95
Each
units
CCFL White Yes 1 2 Dia. x 226mm - 2mm 226mm - - -
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. 197-1242
Mfr. Part No.EA LED36x28-A
MYR25.263
Each (In a Tray of 25)
units
LED Amber - - - - - - - - EA DOGS104x-A
RS Stock No. 197-1303
Mfr. Part No.EA LED94X67-W
MYR237.33
Each
units
LED White - - - - - - - - EA DOGS104x-A