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KEYPAD LGF
  • Release time:2019/12/20 14:09:31
  • Click:562
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    Inquiry about:KEYPAD LGF
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    What is LGF Dome Array and How does it work ?
    LGF metal dome array , which full name is Light Guide Film , it is a new design . which used to replace LED in function , in comparsion with LED , lighting Uniformity; When we add a LGF on current normal double layer or EMI dome array, it becomes a LGF dome array. It can achieve great result of light distribution.see from the design , the light under keypad is coming from the LED on PCB motherboard. We need to put about 8-10 pieces LED on each board, but if the design changed to use LGF, then we can save several LED, as well as SMT fee.

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    What is the LGF DESIGN PRINCIPLE & What is the Advantage ?
    LGF, at least one surface out of front and rear surfaces of the light guide film is formed with a pattern such that density increases as distanced from a light source to allow light to be uniformly supplied to the keypad, or is concentratively formed with a pattern at a particular region of the light guide film to allow the light to be concentratively supplied to a particular region of the keypad.

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    PRODUCT   PHOTOGRAP

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    MAJIOR TECHNICAL PARAMETERS & ADVANTAGES OF METAL DOME ARRAY


    Item Description TECHNICAL INDEX
    1 LONG LIFE-TIME
    Shape Type : Round , Oblong , 4-legged , Trianglar , Rectangular , Irregular
    Appearance Treatment Type : Stainless Steel ,Nickel plated , Silver Plated , Gold plated
    Dimple numbers : 0/1/3/4/5
    Life-time : 300~5000K Hits
    Force & Click Ratio : In compare of initial value , the change rate<30% after 1M hits

    2

    Click % Force:100gf~450gf , Tolerance :+/-20gf
    Click Ratio :50+/-10% ,
    3 Stroke Custom in accordance with Customer's requirement
    4 Dimension Tolerance Position dimension tolearance :+/-0.1mm
    5

    Weather-proof

    Resistance

    Under the conditions of 55±2°C , R.H. 95%,Replacement 24H , resume 2H under the normal room temperature
    6

    Corrosion

    Resistance

    High Temp. can bear : +70°C

    Low Temp. can bear : -40°C

    7 Tape Adhesive Test 0.6↑(unit : kgf/inch)
    8

    Stable adhesive

    Shrinkage Rate

    MD(%):0.5↓ CD(%):0.3↓
    9

    Small Instantant

    Contact Resistance

    Nickel Plating <1Ω Stainless Steel <3Ω
    10

    Total Thickness

    of Base Material

    0.05mm,0.075mm,0.1mm,0.15mm for normal thickness Spec.
    11 Light-Guide Film Uniformity >75%

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    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 .


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