Electro-Luminescence

EL is used for the backlight of LCDs and also applied to the backlight of PDAs (Personal Digital Assistant), Palmtop Computers, etc. It is even being used in communication devices for its superior readability. It is used in the keypads of cellular phones and as a backlight for advertising.

EL is thinner and more flexible than LED, and its whole surface is luminous with little power consumption. We at Hansung Elcomtec Co., Ltd. possess our own EL paste technology which is the core technology of EL manufacturing and provides better electrical and optical characteristics and reliability than other companies. On this technical base we operate a 60 million count production line per month and provide our customers with the needed EL from Backlight, Key-pad till Advertising. All Hansung Elcomtec Co., Ltd. staff members strive to provide the best quality and service available in the ever-changing IT industry. Through continuous technology study and new product development, we are playing the role of the forerunner in overseas market advances.

Hansung Elcomtec Co., Ltd. is one of the world's best EL backlight manufacturers based on the industry acknowledged technology. Through ceaseless study development and thorough quality management we will provide the best products to our customers.

Consist of the EL

Radiation Principle of EL

• AC current volt streams into ITO and Carbon electrode
• Electrons get excited inside the phosphor layer
• Excited electrons return to stable state; emits light when giving off energy

Feature
Energy Band

• Uniform surface luminescence
• Light source with heat
• Thin film (Min : 0.15mm, Std : 0.20mm)
• Light Weight
• Flexible
• Low voltage and high efficiency
• Colorful(More than 20 colors)
• Various form operations

Colorful

Tone	Color	Brightness Typ.(cd/m2)	Chromaticity
			X	Y
Blue	Deep Blue	60	0.16	0.20
	Blue	70	0.16	0.25
	Sky-Blue	75	0.16	0.30
	Light Blue	75	0.17	0.35
Green	Blue Green	90	0.18	0.40
	Green	90	0.20	0.46
	Yellow Green	110	0.20	0.53
	Deep Green	100	0.20	0.59
	Grass Green	85	0.20	0.66
	Grand Green	80	0.20	0.72
Yellow	Deep Yellow	80	0.30	0.50
	Yellow	80	0.40	0.42
	Orange Yellow	60	0.45	0.46
Red	Orange	55	0.49	0.41
	Pink	40	0.46	0.31
	Red	40	0.47	0.35
	Deep Red	30	0.52	0.35
White	Yellow White	95	0.31	0.39
	Blue White	90	0.26	0.26
	White	80	0.31	0.36

Product Quality

• Operating Voltage : AC 150Vrms(=.330Vpp)
• Operating Frequency : 1KHz
• Operating Temperature : -30°C ~ 70°C
• Storage Temperature : -45°C ~ 85°C
• Current density(mA/cm²) : Max 0.3 At 100Vrms_400Hz
• Power Failure capacity : Max. 0.75 at 1Vdcd_1KHz

One Characteristic Quality of EL

Details		Measurement condition		Measurement Time	Criterion
Working Test	Normal Temperature	20±2°C, R.H. 55±5%	100Vrms 400Hz	1) 5,000 Hrs 2) 12,000 Hrs	the rate of relic - 1) over 50% compared 　　 with basic luminance - 2) over 30% compared 　　 with basic luminance no ITO crack stain - none black spot - per sample Φ≤0.3mm
	high temperature and high humidity	60±2°C, R.H. 90±2%	100Vrms 400Hz	1) 240 Hrs
Preservation test	preservation in high temperature	70±2°C		1) 1,000Hrs
	preservation in low temperature	- 30±2°C		1) 1,000Hrs
	thermal shock	70 °C, 2Hour ⇔ - 30 °C, 2Hour		15 Cycles

Special Alert

• Measurement point should be in the middle when measuring BM-7.
• Measure after verifying condition of constant voltage and frequency when measuring luminance.
• Must leave more than 30 minutes in a dark room under 2 lux at normal temperature when measuring luminance after 　 testing high temperature and humidity.

Cross Section of EL & LED

• Item : Dual D381
• Optimized Consumption of Electric Current : 5-10mA
• Noise-Electrical Noise : None
• Noise-Audible Noise : Superior Noise reduction output power area
• Operation Condition : 1.5Vdc~5Vdc
• Ourput Voltage : Max. 220Vpp
• Consitution of Driver Circuit : Inverter 1EA Capacitor 3EA/ Inductor 1EA Zener Diode 2EA
• Size of Consititution of Driver : 8mm x 8mm x 1.2mm(t)

Application

EL for real life

EL for the use of instrument

Advertising EL

Cell Phone Keypad EL