At the end of the day, investing in high-quality Projected Capacitive Touch Screens can make a significant difference in the success of your device or application. That’s why it’s crucial to work with a reputable and experienced touch screen manufacturer like TouchScreenMan.
- The G+F structure, which stands for “cover glass + film sensor,” is a type of projected capacitive touch screen technology that employs a single-layer film sensor to achieve touch functionality.With its low R&D costs, thin profile, short delivery times, and high transmission and reliability, G+F screens are an affordable option for single-touch-point devices. However, their limitations include only supporting a single touch point, low ESD resistance, low interference resistance, and being suitable for screen sizes less than 6 inches.
- In the G+F+F structure, or “cover glass + film sensor + film sensor,” two film sensors are used to achieve touch functionality.Known as the “Two-sheet two-ITO laminated structure,” this technology offers high accuracy, multi-touch capabilities, and excellent handwriting recognition. Additionally, G+F+F screens have a replaceable cover glass, high strength, and high reliability. However, they have lower light transmission and are more expensive, making them less common in the market. These screens are often used for high-end devices due to their reliability.
- The G+G structure, short for “cover glass + glass sensor,” utilizes a glass sensor to provide touch functionality. This popular design comes in two variations: SITO and DITO. G+G screens boast high accuracy, high light transmission, multi-touch support, and excellent handwriting recognition. They also have high strength, reliability, and are suitable for all screen sizes. However, they are thicker, and the sensor glass is prone to breakage. The SITO variant is more reliable in harsh environments but at a higher cost.
- OGS, or “one glass solution,” is a projected capacitive touch screen technology that requires only one glass layer to achieve touch functionality. The “One-sheet two-ITO laminated structure” offers the thinnest profile, high light transmittance, multi-touch support, and good handwriting recognition. However, it has low reliability, low strength, low ESD resistance, high cost, and is only suitable for screen sizes less than 15 inches. While OGS has the potential to be the future of touch screens, issues related to low strength and interference resistance need to be addressed through innovation in the glass industry.