B.1 Enviroment Specification
Chemical Resistance | Toluene, Acetone, Methanol, Alcohol, Ethylacetate, Artificial sweat, |
(top surface) | Petroleum ether |
Condition: Tested after leaving the chemical on the surface for 3 minutes being wiped off by cloth.
Judgment: Must be no effect in appearance.
B.2 Mechanical Characteristics
Operating Life | Input (finger) | 10,000,000 hits (Note 1) |
| Character Input (pen) | 100,000 characters (Note 2) |
Note! 1. Testing rod (Figure 1), Load 250 g, Cycle 2hit/sec;
2.Testing rod (Figure 2), load 250 g, Input size 10 x 10 mm, Input character A to Z / minute.
These (finger and pen) are tested at same point of the panel surface, and all point will become
Silicon Rubber | Polyacetal resin |
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(Hardness: 60°) |
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Tip: R = 0.8 |
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Tip: R = 4.0 |
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Figure 1 Testing rod 1 | Figure 2 Testing rod 2 | |
B.3 Mechanical Characteristics
Pressing Force | Max 100N (Note 3) |
Activation Force | 0.05N to 1.0N |
Surface Hardness | Over 3H (by JIS pencil hardness) (Note 4) |
Note! 3. Testing with rubber rod. (Ø 16 mm, Hardness 60°), Time: 5 s, Center of LCD surface. If you apply pressure over 100N, white spots and dark spots will be occured.
4.Testing pressure is 750 g. If you use 3H hardness pencil with under 750 g pressure, the surface will not be damaged. But using a 4H hard pencil, the surface may be damaged. Please use a 3H pencil or under with under 750 g pressure.
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