Abstract: A high-definition flicker-free etched glass, having a glossiness of 110-145, a haze of 3-10, and a definition of 90%-99.5%. The front surface of the glass is an irregular concave-convex lens surface having an average roughness of 0.025 ?m-0.050 ?m and provided with dents and bumps; the average chord length of the dents is 1.8 ?m-10.0 ?m; the average depth from the bottom of the dent to the top of the bump is 0.2 ?m-0.7 ?m; the average chord length of the bumps is 0.1 ?m-0.5 ?m; when a 250 ?m*250 ?m area on the front surface of the glass is observed after being amplified 500 times, there are 800-2500 irregular bumps, and the irregular bumps form an array of micro-convex lenses.

Abstract: A high-definition flicker-free etched glass, having a glossiness of 110-145, a haze of 3-10, and a definition of 90%-99.5%. The front surface of the glass is an irregular concave-convex lens surface having an average roughness of 0.025 ?m-0.050 ?m and provided with dents and bumps; the average chord length of the dents is 1.8 ?m-10.0 ?m; the average depth from the bottom of the dent to the top of the bump is 0.2 ?m-0.7 ?m; the average chord length of the bumps is 0.1 ?m-0.5 ?m; when a 250 ?m*250 ?m area on the front surface of the glass is observed after being amplified 500 times, there are 800-2500 irregular bumps, and the irregular bumps form an array of micro-convex lenses.

Abstract: An interactive high-clarity glass electronic whiteboard having a writing board body; the writing board body includes a base board and an ultra-thin tempered glass. The front of the base board attaches with the ultra-thin tempered glass. The attaching surface of the ultra-thin tempered glass attaching the base board is adhered with a non-transparent interlayer. A non-transparent coating is adhered to an attaching surface of the ultra-thin tempered glass attaching the base board A writing surface of the ultra-thin tempered glass is a matte surface with anti-glare treatment.

Abstract: An interactive high-clarity glass electronic whiteboard having a writing board body; the writing board body includes a base board and an ultra-thin tempered glass. The front of the base board attaches with the ultra-thin tempered glass. The attaching surface of the ultra-thin tempered glass attaching the base board is adhered with a non-transparent interlayer. A non-transparent coating is adhered to an attaching surface of the ultra- thin tempered glass attaching the base board A writing surface of the ultra-thin tempered glass is a matte surface with anti-glare treatment.