Projection screen optical coating for laser television and preparation method thereof

Abstract

The invention belongs to the technical field of projection screen manufacturing, and particularly relates to a projection screen optical coating for a laser television and a preparation method thereof. The projection screen optical coating for the laser television comprises the following components by mass percentage: 10-15% of reflective powder; 18-21% of barium sulfate; 15-20% of titanium dioxide; 1-5% of polymethyl methacrylate micro powder; 3-8% of spherical organic silicon powder; 3-8% of electroplated aluminum glass microspheres; 0.5-3% of sodium carboxymethyl cellulose; 20-30% of water-based acrylic resin; and 12-18% of water. After the optical coating is applied to a white screen, the brightness, the definition, the gain and the contrast of the white screen are close to those of special laser composite screen cloth, the light visual angle is large, and the application range of the white screen is greatly expanded.

Description

technical field [0001] The invention belongs to the technical field of projection screen manufacturing, and in particular relates to an optical coating for projection screens used in laser televisions and a preparation method thereof. Background technique [0002] TV technology has experienced three technical iterations of black and white TV, color TV and digital TV represented by LCD TV, PDP, OLED, etc., while laser TV is the fourth generation. Laser TV has the advantages of large format, high brightness, high resolution and high resolution. It uses laser light source. Of course, it needs an anti-light gain screen to match it. [0003] Laser TVs are often equipped with two types of anti-gain screens, Fresnel or black grid, and from the perspective of the performance of light reflection on the screen, the Fresnel anti-gain screen gathers projected light by using an optical filter structure similar to concentric circles , has the function of increasing vision and improving e...

AI Technical Summary

Problems solved by technology

However, the composite coating is 2 layers, and the process is relatively complicated. At the same time, some existing technologies require 4 to 5 layers to achieve the desired effect, which greatly limits the development of optical coatings.

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