1) packed by PET bag ( Full package qty : 200 sheet / PET bag )
Carton package, inner 4 -corner wrap by bubble foam prevent from damage during the transporation
1 - 500
501 - 1000
1001 - 10000
To be negotiated
Backlight-guide-board is the primary component of keyboard display, its brightness is related to the display effect of the whole keyboard.
LGF Module is composed by Guide-film , Diffusion film and Reflection Film .
The uniformity of backlight is mainly related to the dot of the LGF , which is located at the bottom of the LGF. Because of the direct LED light , the single-side backlight emitting gradually increases from the nearby position to the opposite side, becomes larger and larger, which is conducive to the reflection of light in a large area
KEYBOARD LGF Module Feature :
a) Good Luminous Effect, Uniform Brightness, High Light Intensity
b) Light Weight ,Thinner Thickness and Small Volume
c) Save LED lamps ,Save Power Consumption
d)Good Stability , Long life-time
KEYBOARD LGF Module Working Principle
The LED lamp will turn on after switch on , the light emit to every area through the dot of LGF , Using the principle of light reflection and refraction, combined with special optical software design, to make "dot light source" enlarge "plane light source".
Major Technical Parameters & Advantages of Metal Dome Array
Round ,Oval, four - legged, triangular,
rectangular, three - point side, irregular
Stainless Steel ,Nickel Plating ,
Silver Plating & gold Plating
Dimple Numbers : 0/1/3/4/5 dimple
LIFE-TIME : 300 ~3000 Thousand Times
In compare of initial value ,
The change rate <30% after 1M press-test
Force:100gf~450gf, Tolerance : ±20gf
Customize in accordance with Customer ‘s requirement
0.12~0.6mm ,Spec. various by different METAL DOME
Position dimension tolerance : + /- 0.1mm
Under the conditions of 55±2℃,R.H.95% , Replacement 24H ,
and then resume 2H under the normal room temperature
Good Corrosion Resistance
High Temperature can bear : +70℃
Lower Temperature can bear : -40℃
Tape Adhesive Test
Stable Tape Shrinkage rate
MD(%):0.5 ↓ CD(%):0.3 ↓
(Nickel Plating ) <1Ω, ( Stainless Steel )<3Ω
Total Thickness of
Normal Thickness Spec.
Shenzhen Guanghongda Technology Co, Ltd has rich experience in exhibition & participation. Through the face-to-face communication in exhibition, to strengthen our powers as an integrated set of industry and trade company.,
Packaging & Shipping
F A Q:
Q1: Are you Trading company or manufacturer ?
A:We are a Professional Trading & Manufacturer Integrated .
Q2 :Can you offer OEM Service ?
A:Surely Okay , we have Seasoned OEM service experience .
Q3: what is the Lead time of sample ?
A : It takes 2-7working days depends .
Q4: How fast can i get the Quotation ?
A: 30mins ~ 24Hours depends .
Please do not hesitate to contact with us , if you have any inquires .