The evolution of writing boards is a process from dust-free writing boards to dust-free writing boards, going through the development of blackboards (green boards) and whiteboards, and then to glass whiteboards.

The ordinary whiteboard is the original dust-free writing board, written on with liquid whiteboard pens, protecting people from dust pollution. Because of the material, it easily gets dirty after a period of use and has a short service life. The glass whiteboard is a type of whiteboard made of 3C explosion-proof tempered glass with white glaze on the back. As a new type of writing board, its outstanding features are hard material, easy writing, easy erasing and durability.

Although ordinary glass whiteboards are very easy to write on and erase, they reflect light easily, and the front looks like a mirror, especially in larger spaces. Because of the reflection angle, people on one side cannot see the writing on the other side at all, and their eyes feel uncomfortable; let alone being unable to use it for projection. The strong light reflected in front is hard on the eyes. To avoid this, the glass surface is treated with nano-misting technology to reduce its reflectivity, combined with imaging technology to improve projection clarity, which is why it is now also called a matte projection glass whiteboard.

The matte projection glass whiteboard is composed of anti-glare tempered glass with a nano-misted surface and imaging materials. It has the advantages of writing, projection, eye protection, health, environmental protection and decoration. It is currently a multifunctional writing board among dust-free writing boards. It has the advantages of writing, projection, eye protection, health, environmental protection and decoration.

The main features of glass whiteboards are as follows:

Good writing and reproduction: ultra-fine nano technology treatment, reproduction leaves no marks, no need to pick pens, ordinary whiteboard pens can be used, and cleaning is convenient.

Clear projection: the clarity of the picture projected by the same projector is close to an ordinary screen, with good color reproduction;

Anti-glare and eye protection: the surface particle size of the glass whiteboard is accurate to the micron level, effectively reducing ambient light, with a reflectivity below 5%. The eyes are no longer affected by glare, and the effective angle is 120 degrees, without affecting students sitting on both sides of the classroom. The light green surface makes the vision softer and not tiring after long viewing.

Environmental protection: professional water-based chalk or whiteboard pens eliminate dust;

Safety: uses nationally certified tempered glass. The mechanical strength, impact resistance and bending strength of tempered glass can reach 4-5 times that of ordinary glass. Except for metal or stones, other small collisions will not break it. If broken, it will not hurt people. The broken particles are very small; secondly, galvanized iron sheet is attached on the back, so the generated broken particles stick together and will not hurt people. In addition, as long as it is used normally and kept dry, the board will not deform or twist, and the service life of the glass whiteboard will exceed 15 years.

Flexible size: it can be spliced and expanded infinitely, and can be used for large glass projection walls, which can both project and decorate. In the future, it can also be combined with infrared electronic products to support point reading and interaction while projecting, making it intelligent with functions similar to electronic whiteboards. Perhaps one day in the future, as long as a projection glass whiteboard is installed in a spacious and bright classroom, combined with an ultra-short-focus projector, dust-free writing and projection interaction can be realized, creating a healthy, environmentally friendly, multimedia dust-free classroom.