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. 534-9962
Mfr. Part No.BF350-20B
kr 112,25
Each
Units
CCFL White Yes 1 3 Dia. x 50mm - 3mm 50mm - - -
RS Stock No. 534-9877
Mfr. Part No.BF22140-24B
kr 155,83
Each
Units
CCFL White Yes 1 2.2 Dia. x 140mm - 2.2mm 140mm - - -
RS Stock No. 168-3898
Mfr. Part No.BF22140-24B
kr 115,645
Each (In a Bag of 100)
Units
CCFL White Yes 1 2.2 Dia. x 140mm - 2.2mm 140mm - - -
RS Stock No. 758-8664
Mfr. Part No.EA LED55x31-RGB
kr 246,66
Each
Units
LED Full Colour (RGB) - 40 - 31 x 55mm - - 31mm 55mm -
RS Stock No. 797-2371
Mfr. Part No.BF20125-28B
kr 130,81
Each
Units
CCFL White - 2 2 Dia. x 125mm - 2mm 125mm - - -
RS Stock No. 171-1881
Mfr. Part No.EA LED55X31-RGB
kr 211,137
Each (In a Box of 25)
Units
LED Full Colour (RGB) - 40 - 31 x 55mm - - 31mm 55mm -
RS Stock No. 168-3982
Mfr. Part No.BF20125-28B
kr 120,567
Each (In a Bag of 100)
Units
CCFL White - 2 2 Dia. x 125mm - 2mm 125mm - - -
RS Stock No. 168-3906
Mfr. Part No.BF3100-20B
kr 76,738
Each (In a Bag of 100)
Units
CCFL White Yes 1 3 Dia. x 100mm - 3mm 100mm - - -
RS Stock No. 534-9956
Mfr. Part No.BF26318-20B
kr 147,36
Each
Units
CCFL White Yes 1 2.6 Dia. x 318mm - 2.6mm 318mm - - -
RS Stock No. 168-3905
Mfr. Part No.BF26318-20B
kr 129,36
Each (In a Bag of 100)
Units
CCFL White Yes 1 2.6 Dia. x 318mm - 2.6mm 318mm - - -
RS Stock No. 534-9978
Mfr. Part No.BF3100-20B
kr 123,73
Each
Units
CCFL White Yes 1 3 Dia. x 100mm - 3mm 100mm - - -
New
RS Stock No. 197-1231
Mfr. Part No.EA LED39x41-W
kr 133,75
Each
Units
LED White - - - - - - - - EA DOGS104x-A
New
RS Stock No. 197-1232
Mfr. Part No.EA LED39x41-GR
kr 57,051
Each (In a Tray of 24)
Units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 534-9899
Mfr. Part No.BF26188-20B
kr 129,61
Each
Units
CCFL White Yes 1 2.6 Dia. x 188mm - 2.6mm 188mm - - -
RS Stock No. 758-8658
Mfr. Part No.EA LED55x31-G
kr 49,45
Each
Units
LED Yellow-Green - 40 - 31 x 55mm - - 31mm 55mm -
New
RS Stock No. 197-1255
Mfr. Part No.EA LED40x33-A
kr 78,67
Each
Units
LED Amber - - - - - - - - EA DOGS104x-A
RS Stock No. 168-3899
Mfr. Part No.BF22258-25B
kr 121,822
Each (In a Bag of 100)
Units
CCFL White Yes 1 2.2 Dia. x 258mm - 2.2mm 258mm - - -
New
RS Stock No. 197-1254
Mfr. Part No.EA LED40x33-A
kr 60,459
Each (In a Tray of 20)
Units
LED Amber - - - - - - - - EA DOGS104x-A
New
RS Stock No. 197-1243
Mfr. Part No.EA LED36x28-A
kr 78,15
Each
Units
LED Amber - - - - - - - - EA DOGS104x-A
New
RS Stock No. 197-1286
Mfr. Part No.EA LED94x40-A
kr 159,02
Each
Units
LED Amber - - - - - - - - EA DOGS104x-A
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