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Touch Technology
This is a 4-wire resistive touch screen. In a 4-wire resistive touch screen, there are two flexible layers coated with a transparent conductive material. When pressure is applied to the screen, the two layers make contact at the touch point, and the system measures the resistance changes along the x and y axes to determine the touch position.
Aspect Ratio
The aspect ratio of the touch screen can be calculated as \(271:204\approx1.33\), which is close to the 4:3 aspect ratio. This aspect ratio is commonly used in many industrial and commercial applications where a more square-like display is preferred.
Operating Voltage
Typically, a 4-wire resistive touch screen operates at a voltage of around 5V DC. However, some models may have an operating voltage range of 4.5V to 5.5V to accommodate different power supply conditions.
Power Consumption
The power consumption of such a touch screen is relatively low. It may consume in the range of 0.3 to 1 watt, depending on factors like the internal circuitry design and any additional features such as a built-in touch controller.
Resolution
A 4-wire resistive touch screen usually has a high touch resolution, often reaching 4096 x 4096 points. This allows for precise detection of the touch position on the screen, enabling accurate user interactions with the interface.
Response Time
The response time of a good quality 4-wire touch screen is generally less than 20 milliseconds. This ensures that the user's touch input is quickly registered and processed, providing a smooth user experience.
Durability
Resistive touch screens are designed to be durable. They can typically withstand millions of touches over their lifespan, making them suitable for applications with frequent use, such as industrial control panels or public kiosks.
Light Transmittance
The light transmittance of a 4-wire resistive touch screen is usually in the range of 75% to 85%. This allows sufficient light from the underlying display to pass through, enabling the user to view the screen clearly.
Reflectance
To improve visibility in different lighting conditions, the touch screen surface has a relatively low reflectance, typically less than 5%. This helps to reduce glare and makes the screen more readable.
Thickness
The thickness of the touch screen module, including protective layers and internal circuitry, is usually in the range of 2 to 5 millimeters. Thinner designs are more suitable for applications where space is limited.
Surface Hardness
The surface of the touch screen is likely to have a hardness rating of at least 3H on the Mohs scale. This helps to resist scratches and abrasions during normal use, ensuring the longevity of the touch screen.
Operating Temperature
A typical operating temperature range for a 4-wire resistive touch screen is -20°C to 70°C. This allows the touch screen to function properly in a wide variety of indoor and some outdoor environments.
Storage Temperature
The storage temperature range is usually -30°C to 80°C, ensuring that the touch screen can be stored safely in different environmental conditions without damage.
Touch Technology
This is a 4-wire resistive touch screen. In a 4-wire resistive touch screen, there are two flexible layers coated with a transparent conductive material. When pressure is applied to the screen, the two layers make contact at the touch point, and the system measures the resistance changes along the x and y axes to determine the touch position.
Aspect Ratio
The aspect ratio of the touch screen can be calculated as \(271:204\approx1.33\), which is close to the 4:3 aspect ratio. This aspect ratio is commonly used in many industrial and commercial applications where a more square-like display is preferred.
Operating Voltage
Typically, a 4-wire resistive touch screen operates at a voltage of around 5V DC. However, some models may have an operating voltage range of 4.5V to 5.5V to accommodate different power supply conditions.
Power Consumption
The power consumption of such a touch screen is relatively low. It may consume in the range of 0.3 to 1 watt, depending on factors like the internal circuitry design and any additional features such as a built-in touch controller.
Resolution
A 4-wire resistive touch screen usually has a high touch resolution, often reaching 4096 x 4096 points. This allows for precise detection of the touch position on the screen, enabling accurate user interactions with the interface.
Response Time
The response time of a good quality 4-wire touch screen is generally less than 20 milliseconds. This ensures that the user's touch input is quickly registered and processed, providing a smooth user experience.
Durability
Resistive touch screens are designed to be durable. They can typically withstand millions of touches over their lifespan, making them suitable for applications with frequent use, such as industrial control panels or public kiosks.
Light Transmittance
The light transmittance of a 4-wire resistive touch screen is usually in the range of 75% to 85%. This allows sufficient light from the underlying display to pass through, enabling the user to view the screen clearly.
Reflectance
To improve visibility in different lighting conditions, the touch screen surface has a relatively low reflectance, typically less than 5%. This helps to reduce glare and makes the screen more readable.
Thickness
The thickness of the touch screen module, including protective layers and internal circuitry, is usually in the range of 2 to 5 millimeters. Thinner designs are more suitable for applications where space is limited.
Surface Hardness
The surface of the touch screen is likely to have a hardness rating of at least 3H on the Mohs scale. This helps to resist scratches and abrasions during normal use, ensuring the longevity of the touch screen.
Operating Temperature
A typical operating temperature range for a 4-wire resistive touch screen is -20°C to 70°C. This allows the touch screen to function properly in a wide variety of indoor and some outdoor environments.
Storage Temperature
The storage temperature range is usually -30°C to 80°C, ensuring that the touch screen can be stored safely in different environmental conditions without damage.
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