1.1 Scope of application |
This product is a 7-inch four-wire resistive touch screen. |
1.2 Features and specifications |
l Feature |
Structure | Materials used | Supplier | Description |
ITO FILM | PET film |
| ITO Film; Thickness: 0.188mm |
ITO GLASS | Glass |
| ITO Glass Thickness: 1.1mm |
lead | FPC |
| Connector thickness: 0.3±0.03mm |
Line key | Double-sided tape |
| Thickness D=0.1mm Adhesion>1300gf/20mm |
Structure | F/G |
TP Surface characteristics | High transparency and anti-glare |
l specification(L=long; W=wide; T= thickness) |
Project | Specification | Unit |
Dimensions | 164.7（L）×99.8（W）×1.4(T) | mm |
View area | 154.6（L）×87.64（W） | mm |
Drive area | 149.6（L）×82.64（W） | mm |
Insulation point size and pitch | φ0.06，3×3 | mm |
1.3 Environmental parameters |
Project | Value |
Working temperature and humidity range | -30℃-+80℃，<90%RH |
Storage temperature and humidity range | -40℃-+85℃，<90%RH |
1.4 Mechanical behavior |
Project | Value |
Operating pressure | 30-120g |
Surface pressure resistance | 2kgf |
FPC Heat sealing strength | FX>2kgf FY>500gf FZ>150gf |
Operating life | Strike life | >1,000,000次 |
Stroke life | >100,000次 |
Optical properties | Transparency≥83% |
Haze value | 8±2 |
Surface hardness | >3H |
Capacitance | <10nF |
1.5 Electrical performance |
Project | Value |
Maximum voltage | 5V（DC） |
Maximum current value | Top layer | 25mA(max) |
Bottom layer | 25mA(max) |
Loop resistance | X resistance:450--900Ω Y resistance:200--550Ω |
Insulation resistance | >20MΩ（DC25V） |
Linear | ≤1.5% |
Response time | ≤10ms |
Appearance inspection standard
This standard is only for the viewing area, because the area outside the viewing area will not have any effect on the appearance of the T/P. Such as: T/P surface with wipeable adhesions, stains, etc. will not be treated for poor appearance. But the product item "fracture, breakage" refers to the entire product.
<Test conditions>
Detect under a 12W-20W cool white fluorescent lamp at a distance of 400-500mm from the product. The visual inspection distance is 300mm (above 300mm can be seen as a defective product), and a black cardboard is added under the product as a background. The inspection time for each product does not exceed 10 seconds, as shown in the figure:
A source of light（12-20W）
