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. 168-3897
Mfr. Part No.BF20325-24B
MYR43.381
Each (In a Bag of 100)
units
CCFL White Yes 1 2 Dia. x 325mm - 2mm 325mm - - -
New
RS Stock No. 197-1233
Mfr. Part No.EA LED39x41-GR
MYR41.96
Each
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 168-3907
Mfr. Part No.BF3228-21B
MYR41.126
Each (In a Bag of 100)
units
CCFL White Yes 1 3 Dia. x 228mm - 3mm 228mm - - -
RS Stock No. 758-8655
Mfr. Part No.EA LED55x31-W
MYR51.13
Each
units
LED White - 40 - 31 x 55mm - - 31mm 55mm -
RS Stock No. 534-9833
Mfr. Part No.BF20226-24B
MYR60.78
Each
units
CCFL White Yes 1 2 Dia. x 226mm - 2mm 226mm - - -
RS Stock No. 168-3910
Mfr. Part No.BF3380-20B
MYR49.94
Each (In a Bag of 100)
units
CCFL White Yes 1 3 Dia. x 380mm - 3mm 380mm - - -
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 - - -
New
RS Stock No. 197-1246
Mfr. Part No.EA LED36x28-GR
MYR35.602
Each (In a Tray of 25)
units
LED - - - - - - - - - EA DOGS104x-A
New
RS Stock No. 197-1288
Mfr. Part No.EA LED94x40-GR
MYR112.36
Each
units
LED - - - - - - - - - EA DOGS104x-A
New
RS Stock No. 197-1286
Mfr. Part No.EA LED94x40-A
MYR82.70
Each
units
LED Amber - - - - - - - - EA DOGS104x-A
New
RS Stock No. 197-1229
Mfr. Part No.EA LED39x41-A
MYR24.975
Each (In a Pack of 2)
units
LED Amber - - - - - - - - EA DOGS104x-A
New
RS Stock No. 197-1254
Mfr. Part No.EA LED40x33-A
MYR31.444
Each (In a Tray of 20)
units
LED Amber - - - - - - - - EA DOGS104x-A
New
RS Stock No. 197-1305
Mfr. Part No.EA LED94X67-A
MYR128.81
Each
units
LED Amber - - - - - - - - EA DOGS104x-A
New
RS Stock No. 197-1285
Mfr. Part No.EA LED94x40-A
MYR72.564
Each (In a Tray of 7)
units
LED Amber - - - - - - - - EA DOGS104x-A
New
RS Stock No. 197-1245
Mfr. Part No.EA LED36x28-ERW
MYR72.39
Each
units
LED - - - - - - - - - EA DOGS104x-A
RS Stock No. 758-8699
Mfr. Part No.EA LED55x46-W
MYR76.81
Each
units
LED White - 40 - 46 x 55mm - - 46mm 55mm -
RS Stock No. 201-0368
Mfr. Part No.AC 821
MYR47.54
Each
units
- - - - - - - - - - -
New
RS Stock No. 197-1303
Mfr. Part No.EA LED94X67-W
MYR237.33
Each
units
LED White - - - - - - - - EA DOGS104x-A
RS Stock No. 534-9956
Mfr. Part No.BF26318-20B
MYR68.47
Each
units
CCFL White Yes 1 2.6 Dia. x 318mm - 2.6mm 318mm - - -
RS Stock No. 171-1889
Mfr. Part No.EA LED68X51-W
MYR92.56
Each (In a Box of 15)
units
LED White - 40 - 51 x 68mm - - 51mm 68mm -
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