What is G+G Structure in Touch Screen?
With the rapid development of intelligent terminal devices, industrial automation, and human-computer interaction technologies, touch screens have become an important component of modern electronic devices. From smart home control panels to industrial equipment, medical instruments, and automotive display systems, the application scope of touch technology is constantly expanding. Among the numerous capacitive touch screen technologies available today, the G+G structure (Glass + Glass) has emerged as a common touch screen solution for industrial-grade and some high-end display devices due to its excellent mechanical strength, optical performance, dimensional stability, and reliability.
What is G+G Technology?
G+G is the abbreviation of Cover Glass (protective glass) and Glass Sensor (glass sensor), and it is a structural form of projected capacitive touch screen (referred to as PCAP or CTP). The first G (Glass): Cover Glass (protective glass), which is the surface protective glass cover plate. The second G (Glass): Sensor Glass (sensor glass), which is the glass substrate used to detect the touch position. In short, the G+G structure means that both the protective glass and the sensing glass of the touch screen are real glass. They are bonded together through optical adhesive (OCA), and then combined with the display module (TFT color screen or LCD liquid crystal display) to form a complete touch and display solution.
Two layers of glass are bonded together with optical adhesive to form a capacitive touch screen component with touch sensing function. When the G+G touch screen is combined with a TFT color screen or other LCD display screen, integrated interaction between the display screen and touch input can be achieved. The main advantages of the G+G structure are as follows:
1. High mechanical strength and excellent impact resistance
The G+G structure can better cushion and disperse stress when subjected to external impacts, drops, or heavy pressure. This is particularly important for products with complex usage environments such as outdoor terminals, industrial equipment, cash registers, self-service terminals, etc.
2. Excellent optical performance for more transparent display
The TFT color screen and LCD display screen with G+G structure provide more realistic color reproduction, brighter and clearer images, and still have good visibility in strong light environments.
3. Stable structure, not easily deformed
Glass substrates have good thermal stability and a low coefficient of expansion when subjected to temperature changes. In high or low temperature environments, it will not wrinkle or deform like thin films.
4. Smooth surface, easy to clean and durable.
The glass surface is dense and smooth, not easy to absorb dust and oil stains, making cleaning very convenient. Meanwhile, glass has wear-resistant and scratch resistant properties, making it less prone to scratches during long-term use. This can significantly extend the lifespan of the display screen and reduce maintenance costs.
The main application fields of the G+G structure touch screen
The G+G capacitive touch screen can be adapted to various sizes of LCD liquid crystal displays. With its advantages such as high resolution, high color saturation, fast response and wide viewing angle, it is widely used in industries, healthcare, and smart devices.
Industrial Human-Machine Interface (HMI): Industrial control equipment requires extremely high stability and durability. The TFT color screen with G+G structure can operate stably in harsh workshop environments.
Medical display terminal: Frequent cleaning and disinfection are required. The G+G structure surface is easy to clean and resistant to chemical reagents, which is very suitable.
Smart home appliance panels: Such as smart refrigerators, washing machines, ovens, etc., they combine beauty with durability.
About Jingda Display-Your Professional Manufacturer
Shenzhen Jingda Display Technology Co., Ltd. (Jingda Display) was established in 2015. It is a manufacturer specializing in the research and development, production, and sales of LCD, TFT and OLED display screens. The company has over 10 years of experience in the display industry and its products cover monochrome LCD displays, TFT screens, OLED display modules and touch display solutions.
Jingda Display offers LCD, TFT and OLED display modules as well as customized touch display solutions. It can assist in evaluating suitable display and touch integration solutions based on the customer's product size, application environment, interface requirements and structural design. If you are looking for LCD, TFT, OLED, WELCOME CONTACT JDA TEAM. Our official website is www.jda-display.com
