When suppliers ask if you need G+G, G+F, or G+FF technology, you may not fully understand the differences or know which one fits your needs. Here’s a brief overview to help you decide.
Basics of G+G, G+F, and G+FF
LCD screens consist of three parts: the cover glass (CG), the touch panel (TP), and the display screen. G+G, G+F, and G+FF technologies are applied at the TP layer.
- G+G (Glass-Glass): CG + ITO Glass
- G+F (Glass-Film): CG + ITO Film
- G+FF (Glass-Film-Film): CG + ITO Film + ITO Film

1. GG Technology (Glass-Glass)
G+G technology uses two glass layers: a protective cover glass on top and a sensor glass underneath.
- Durability: Its double-glass structure provides strong resistance to scratches and impacts, making it ideal for rugged use.
- Touch Sensitivity: The sensor glass offers high precision and responsiveness, perfect for premium devices.
- Visual Clarity: Glass layers deliver sharp visuals and enhanced brightness.
However, its heavier weight and higher fragility make it less suited for devices requiring special shapes.
2. GF Technology (Glass-Film)
G+F technology combines a glass cover with a flexible plastic film as the sensor layer.
- Lightweight: It reduces weight compared to G+G, making it ideal for portable devices.
- Cost-Effective: The use of film lowers production costs, balancing performance and affordability.
- Flexibility: The plastic film supports curved designs, expanding its application range.
While more flexible, G+F touchscreens are less durable, less scratch-resistant, and typically limited to single-touch functionality. and its anti-interference ability is not good. Moreover, it is mainly single point and does not support multi-touch.
3. GFF Technology (Glass-Film-Film)
G+FF technology adds an extra film layer below the sensor film.
- Precision: Dual-film layers ensure smooth touch input and accurate stylus handwriting.
- Multi-Touch Support: This technology handles complex gestures and interactions effortlessly.
- Customizable Shapes: Flexible film layers accommodate unique screen shapes for specialized designs.
- Anti-Interference: Strong resistance to electromagnetic interference makes it reliable in industrial settings.
However, G+FF may have slightly reduced optical clarity and lower durability compared to G+G.
About Us
Rjoytek(RJY Display) was established in 2014, we are committed to one-stop LCD R&D and sales solutions. Based on the fact that our customers always need to spend a lot of energy to find different suppliers, so we integrate resources, and on the basis of our own two LCD manufacturers, we set up a special department to find the supply of LCD control board for our customers, software development suppliers, suppliers of various assembly. Now, we have mature abilities to provide customers with LCD display panels, lcd control boards, accessory wires, software support, logo and other customization. We do all the work together, which saves our clients a lot of time and money. Of course, all of these are optional, you can choose us to do supporting work for you, if you have a mature supplier team, we are happy to work with your supplier to provide you with high-quality lcd displays.
Our advantage: in addition to providing the fully customized solutions , we can also provide other control boards, these boards and LCD screens can be purchased from us together, one-stop service is our aim.
- We provide customization, including product size, touch screen, digital cable, and control board;
- We have obtained various product certificates and factory certifications, such as ISO9001, ISO45001, REACH, CE, etc;
- We have 2 factories, we can provide fast lead time and fast production time;
If you need the following items, please contact us.
- OEM ODM Project
- Customize Sunlight Readable LCD Display
- Customize TFT LCD Display Interface
- Customize LCD Control Board
- Customize LCD Touchscreen
- Buy small MOQ TFT LCD Panel