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$122.91
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$90.206
個 (以毎袋:100)
單位
CCFL White Yes 1 3 Dia. x 100mm - 3mm 100mm - - -
RS庫存編號 197-1306
製造零件編號EA LED94X67-GR
HK$201.128
Each (In a Tray of 6)
單位
LED - - - - - - - - - EA DOGS104x-A
RS庫存編號 758-8658
製造零件編號EA LED55x31-G
HK$46.03
單位
LED Yellow-Green - 40 - 31 x 55mm - - 31mm 55mm -
RS庫存編號 197-1308
製造零件編號EA LED94X67-GR
HK$216.20
單位
LED - - - - - - - - - EA DOGS104x-A
RS庫存編號 534-9984
製造零件編號BF3228-21B
HK$129.20
單位
CCFL White Yes 1 3 Dia. x 228mm - 3mm 228mm - - -
RS庫存編號 171-1889
製造零件編號EA LED68X51-W
HK$203.322
個 (以毎盒:15)
單位
LED White - 40 - 51 x 68mm - - 51mm 68mm -
RS庫存編號 168-3897
製造零件編號BF20325-24B
HK$91.644
個 (以毎袋:100)
單位
CCFL White Yes 1 2 Dia. x 325mm - 2mm 325mm - - -
RS庫存編號 758-8664
製造零件編號EA LED55x31-RGB
HK$225.25
單位
LED Full Colour (RGB) - 40 - 31 x 55mm - - 31mm 55mm -
RS庫存編號 534-9990
製造零件編號BF3300-20B
HK$143.58
單位
CCFL White Yes 1 3 Dia. x 300mm - 3mm 300mm - - -
RS庫存編號 197-1302
製造零件編號EA LED94X67-W
HK$312.883
Each (In a Tray of 6)
單位
LED White - - - - - - - - EA DOGS104x-A
RS庫存編號 197-1242
製造零件編號EA LED36x28-A
HK$50.851
Each (In a Tray of 25)
單位
LED Amber - - - - - - - - EA DOGS104x-A
RS庫存編號 168-3898
製造零件編號BF22140-24B
HK$110.086
個 (以毎袋:100)
單位
CCFL White Yes 1 2.2 Dia. x 140mm - 2.2mm 140mm - - -
RS庫存編號 197-1286
製造零件編號EA LED94x40-A
HK$115.55
單位
LED Amber - - - - - - - - EA DOGS104x-A
RS庫存編號 197-1287
製造零件編號EA LED94x40-GR
HK$157.673
Each (In a Tray of 7)
單位
LED - - - - - - - - - EA DOGS104x-A
全新
RS庫存編號 197-1289
製造零件編號EA LED94x40-ERW
HK$340.704
Each (In a Tray of 7)
單位
LED - - - - - - - - - EA DOGS104x-A
RS庫存編號 535-0007
製造零件編號BF3380-20B
HK$172.69
單位
CCFL White Yes 1 3 Dia. x 380mm - 3mm 380mm - - -
RS庫存編號 197-1247
製造零件編號EA LED36x28-GR
HK$66.40
單位
LED - - - - - - - - - EA DOGS104x-A
RS庫存編號 197-1243
製造零件編號EA LED36x28-A
HK$61.08
單位
LED Amber - - - - - - - - EA DOGS104x-A
RS庫存編號 168-3900
製造零件編號BF26188-20B
HK$92.904
個 (以毎袋:100)
單位
CCFL White Yes 1 2.6 Dia. x 188mm - 2.6mm 188mm - - -