Custom SMD LED Backlight

Custom kinds of colors and shape ultra thin led backlight board

Kindly send us your detail drawing(Size, light color, Voltage or more) to evaluate, thanks

Absolute Max Rating (25℃, take white color backlight as sample):

Item	Symbol	Condition	Value	Unit
Absolute maximum forward current	Ifm	/	25	mA
Peak forward current	Ifp	1 msec plus 10% duty cycle	100	mA
Reverse voltage	Vr	/	5	V
Power dissipation	Pd	/	100	mW
Operating temperature range	Topr	/	-30℃~+70℃
Storage temperature range	Tstg	/	-40℃~+80℃

 

Characteristics (25℃, take white color backlight as sample):

Item	Sumbol	Min	Typ	Max	Unit	Condition
Forward Voltage	Vf	2.5	/	3.0	V	If=5mA
Reverse Current	Ir	/	/	50	μA	V=5V
Luminance	Lv	45	/	120	Cd/m2	If=5mA
Uniformity	Lv-m	≥75	/	/	%	min/max*100%

Backlight can be any kind of color;  monochrome liquid crystal usually uses yellow, green, blue, red and white backlight. LED backlight can enhance the color performance of LCD display. 

 

Backlight Type 

LED backlight; CCFL backlight; EL backlight

Classified by Thickness 

0.55mm~10mm

Classified by Light Guide Plate 

Extrusion molding board (steel mold needed), and Laser cutting silk-screen

Drive Voltage

LED backlight: 1.8~2.1V, and 2.8-3.1V
CCFL backlight: around 1000V
EL backlight: 100V
The main advantages of LED backlight are as follows
1. High brightness. The brightness will not fall even after being used for a long time. And it has a thinner body and nice shape.
2. Soft in color, good for eyes when it combines with LCD panel 
3. Energy saving, environmentally friendly and low radiation.