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Master Touch 4 Inch Capacitive Optical Bonding Touch Screen with LCD
1. Product Description
Master Touch 4 inch capacitive Optical Bonding Touch Screen is the lamination of touch panel and the LCD Module through optical bonding technology with OCA or LOCA (Whether OCA or LOCA is chosen depends of the application of the product or the LCD used.) that fills air gaps between components in LCD displays and the touch panel, improving brightness, contrast and enhancing shock resistance, stress mitigation, also reducing the parallax. In this way, the display and the touch screen are completely glued together without gaps, which isolates dust and water vapor to keep the screen clean.
2. Genaral Specification
2.1 LCD
| Size | 3.97 inch |
| Resolution | 480 RGB*800 dots |
| Outline Dimension | 94.1*55.64 |
| Active Area | - |
| Viewing Direction | ALL |
| Operating frequency | 60Hz |
| Driving Voltage | 3.3V (Typ.) |
| TFT Thickness | 2.2mm |
2.2 Touch Panel
| Outline Dimension | 120*57.62 | mm |
| View Area | 85.4*50.84(4 inch) | mm |
| TP thickness | 2.4 | mm |
| Total | 4.8 | mm |
| Touch IC | CYTMA448-70BUI58AE | -- |
| Number of touchpoint | 5 | points |
| Number of button | -- | - |
| Interface information driven plate | IIC | - |
| The active information | -- | -- |
| The type of Bonding with LCD | Optical bonding | |
| Operation Temperature | -20℃~70℃ | ℃ |
| Storage (cannot exceed 6 months) | Temperature: 23±3℃ (Before installation) Humidity:40%~70%RH | ℃ |
| Temperature: -30~80℃(After installation) | ℃ |
| Item | Content |
| Transparency | 85±10% |
2.4 Electrical Spec.
| ESD Touch Side (Touch) | 4kv |
| ESD Touch Side (Air) | 8kv |
3. Reliability
| High Temperature Operation | 70ºC, 48hrs | -- |
| Low Temperature Operation | -20 ºC, 48hrs | Non-condensing |
| Operating Temperature/ Humidity | 60ºC/90%RH, 500hrs | Non-condensing |
| Thermal Shock | -30 ~ 80℃, 60 mins/cycle, total 48 cycles | -- |
4. Drawing
5. Notice
Due to the system of capacitive touch screen is made of glass, Please do not strong impact, The impact,Or Fall from height;
Please do not stack up TPs. Don’t load on TP;
Please do not put the capacitive touch screen itself or FPC direct contact with metal material;
When assembling, please do not bend or strength to pull FPC, Avoid to cause the injured;
When assembling, please do not touch ink face of back of TP, Avoid to scratches;
When assembling, please do not contact the visual area, if have dirty in VA, Recommend the use of anhydrous ethanol to clean;
Operation of the capacitive touch screen, Use finger or conductive touch pen, please; must avoid high voltage and static electricity.
6. Details
7. FAQ