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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Beskrivning Pris Backlight Type Backlight Colours Variable Brightness Number of Pins CCFL Dimensions Dimensions CCFL Diameter CCFL Length Height Width
RS-artikelnummer 534-9990
Tillv. art.nrBF3300-20B
VarumärkeJKL Components
152,62 kr
Each
Enheter
CCFL White Yes 1 3 Dia. x 300mm - 3mm 300mm - -
RS-artikelnummer 534-9849
Tillv. art.nrBF20292-24B
VarumärkeJKL Components
138,87 kr
Each
Enheter
CCFL White Yes 1 2 Dia. x 292mm - 2mm 292mm - -
RS-artikelnummer 534-9906
Tillv. art.nrBF26214-24B
VarumärkeJKL Components
138,35 kr
Each
Enheter
CCFL White Yes 1 2.6 Dia. x 214mm - 2.6mm 214mm - -
RS-artikelnummer 168-3910
Tillv. art.nrBF3380-20B
VarumärkeJKL Components
111,465 kr
Each (In a Bag of 100)
Enheter
CCFL White Yes 1 3 Dia. x 380mm - 3mm 380mm - -
RS-artikelnummer 168-3896
Tillv. art.nrBF20292-24B
VarumärkeJKL Components
121,849 kr
Each (In a Bag of 100)
Enheter
CCFL White Yes 1 2 Dia. x 292mm - 2mm 292mm - -
RS-artikelnummer 758-8699
Tillv. art.nrEA LED55x46-W
183,95 kr
Each
Enheter
LED White - 40 - 46 x 55mm - - 46mm 55mm
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