TEL:+86-15812821892  E-mail: lushufen@dongchengdg.com

Thin Film Light Guide | Dongchen

Light Guide Film:
Light Guide Film(LGF).It has the characteristics of ultra-thin without affecting the feel, uniform light emission, and many changes in color. It is mainly used in mobile phones and remote control buttons, which can make your buttons rich in color.
Its working principle is to use the principle of light reflection and refraction, combined with special optical software design, to do microstructure processing on the optical PC film, thereby expanding the "point light source" into a "surface light source". The light beam propagates from the medium at a suitable angle and density, so as to achieve the excellent effect of uniform light emission.
The LGF light guide film design can reduce the design of several LED lights, and solve the problems of uneven brightness distribution, high power consumption, large space occupation, and high cost.

Light Guide Film:

Light Guide Film(LGF).It has the characteristics of ultra-thin without affecting the feel, uniform light emission, and many changes in color. It is mainly used in mobile phones and remote control buttons, which can make your buttons rich in color.

Its working principle is to use the principle of light reflection and refraction, combined with special optical software design, to do microstructure processing on the optical PC film, thereby expanding the "point light source" into a "surface light source". The light beam propagates from the medium at a suitable angle and density, so as to achieve the excellent effect of uniform light emission.

The LGF light guide film design can reduce the design of several LED lights, and solve the problems of uneven brightness distribution, high power consumption, large space occupation, and high cost.

图片1

Shading film + LGF + water glue + mylar + spacer + metal dome + protective film

1. Shading film(Black and white fingerprint adhesive

2. LGF

3. 3M7533

4.Mylar

5. Spacer

6. Metal Dome

7. protective film

Product Specification

1.LGF:Common thickness 0.125mm, light transmittance >90%

2.water glue:3M7533

3.Glue material :

project

thickness(mm)

initial force

retentivity(hr/kg*inch)

adhesive force(kgf/inch)

Detection Tool

thickness gauge

Tape initial viscosity tester

Supplier supply

Supplier supply

Colour

Transparent

thickness of adhesive:0.018~0.025

The adhesive rolling distance of corresponding steel balls is less than 10cm

8↑

0.6↑

base material:  0.025/0.05/0.075/0.1

White

thickness of adhesive:0.018~0.025

The adhesive rolling distance of corresponding steel balls is less than 10cm

8↑

0.6↑

base material:  0.025/0.05/0.075/0.1

One side is black, the other side is white

thickness of adhesive:0.018~0.025

The adhesive rolling distance of corresponding steel balls is less than 10cm

8↑

1.1↑

base material:  0.025


Note: (1) metal DOME substrate: SUS301;(2) vertex: down Dimple



project

positioning hole to positioning hole(mm)

Positioning hole to shape(mm)

Shape to shape(mm)

Hole diameter(mm)

Positioning hole to metal dome(mm)

metal dome to metal dome(mm)

sample

Manual sample

±0.15

±0.15

±0.15

±0.1

±0.2

±0.2

Mould sample

±0.1

±0.1

±0.1

+0.08/-0

±0.12

±0.12

Note: (1) the positioning hole are minimum aperture Φ 1.0 mm;

(2) the minimum aperture of SP sheet is 0.15mm larger than that of shrapnel.The width of gas groove of SP sheet is 1.0~1.2mm, and the wiring mode is: two to three keys are connected, and avoid components to avoid dust.


4. The sample delivery

 

 

sample


 

Model

The new model(5~20pcs)

The old model(5~20pcs)

Manual sample

3 ~ 5 working days

3 ~ 5 working days

Mould sample

1 working day after the mold returns

2 ~ 3 working days


Mold delivery time: 6-7 working days

Note: 1. The life test conditions are as follows: the plastic flat head of the hitting head;Diameter: Φ 1.8;Speed: 2~3 times/second;Strike power: 400-500g.

2. Determination of life span: before and after the life span impact, the change rate of elasticity and feel of the DOME is less than 30%, and the metal dome is not broken.




CONTACT

  (+86)-15812821892
  lushufen@dongchengdg.com
    Dongcheng Huimei Technology Park,
Chashan Town, Dongguan, Guangdong, 
China

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