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庫存編號 534-9978
製造零件編號BF3100-20B
HK$101.83
單位
CCFL White Yes 1 3 Dia. x 100mm - 3mm 100mm - - -
RS庫存編號 168-3906
製造零件編號BF3100-20B
HK$74.62
個 (以毎袋:100)
單位
CCFL White Yes 1 3 Dia. x 100mm - 3mm 100mm - - -
RS庫存編號 168-3907
製造零件編號BF3228-21B
HK$102.767
個 (以毎袋:100)
單位
CCFL White Yes 1 3 Dia. x 228mm - 3mm 228mm - - -
RS庫存編號 168-3908
製造零件編號BF3300-20B
HK$124.512
個 (以毎袋:100)
單位
CCFL White Yes 1 3 Dia. x 300mm - 3mm 300mm - - -
RS庫存編號 534-9906
製造零件編號BF26214-24B
HK$137.36
單位
CCFL White Yes 1 2.6 Dia. x 214mm - 2.6mm 214mm - - -
RS庫存編號 758-8699
製造零件編號EA LED55x46-W
HK$165.52
單位
LED White - 40 - 46 x 55mm - - 46mm 55mm -
全新
RS庫存編號 197-1306
製造零件編號EA LED94X67-GR
HK$221.17
Each (In a Tray of 6)
單位
LED - - - - - - - - - EA DOGS104x-A
RS庫存編號 168-3897
製造零件編號BF20325-24B
HK$87.11
個 (以毎袋:100)
單位
CCFL White Yes 1 2 Dia. x 325mm - 2mm 325mm - - -
全新
RS庫存編號 197-1282
製造零件編號EA LED94x40-W
HK$269.574
Each (In a Tray of 7)
單位
LED White - - - - - - - - EA DOGS104x-A
全新
RS庫存編號 197-1271
製造零件編號EA LED66x40-GR
HK$95.695
Each (In a Tray of 11)
單位
LED - - - - - - - - - EA DOGS104x-A
RS庫存編號 534-9877
製造零件編號BF22140-24B
HK$151.46
單位
CCFL White Yes 1 2.2 Dia. x 140mm - 2.2mm 140mm - - -
RS庫存編號 201-0368
製造零件編號AC 821
HK$91.41
單位
- - - - - - - - - - -
RS庫存編號 534-9849
製造零件編號BF20292-24B
HK$130.15
單位
CCFL White Yes 1 2 Dia. x 292mm - 2mm 292mm - - -
全新
RS庫存編號 197-1247
製造零件編號EA LED36x28-GR
HK$71.84
單位
LED - - - - - - - - - EA DOGS104x-A
全新
RS庫存編號 197-1283
製造零件編號EA LED94x40-W
HK$307.36
單位
LED White - - - - - - - - EA DOGS104x-A
RS庫存編號 534-9990
製造零件編號BF3300-20B
HK$142.99
單位
CCFL White Yes 1 3 Dia. x 300mm - 3mm 300mm - - -
RS庫存編號 183-0830
製造零件編號LTR24S3804YG
BrandLedtech
HK$95.75
單位
LED Green - 8 - 23.3 x 48.7mm - - 23.3mm 48.7mm -
全新
RS庫存編號 197-1305
製造零件編號EA LED94X67-A
HK$219.66
單位
LED Amber - - - - - - - - EA DOGS104x-A
RS庫存編號 168-3898
製造零件編號BF22140-24B
HK$112.35
個 (以毎袋:100)
單位
CCFL White Yes 1 2.2 Dia. x 140mm - 2.2mm 140mm - - -
RS庫存編號 534-9962
製造零件編號BF350-20B
HK$101.71
單位
CCFL White Yes 1 3 Dia. x 50mm - 3mm 50mm - - -