Display screen and laser television

Abstract

The invention provides a display screen and a laser television. The display screen includes a reflecting prism, one side of the reflecting prism is a flat surface, the other side is a serrated reflecting surface, the reflecting surface includes a plurality of first reflecting surfaces and a plurality of second reflecting surfaces, the first reflecting surfaces are toward a projection light source of the display screen, the second reflecting surfaces and the first reflecting surfaces are different in direction, each of first reflecting surfaces is provided with a protrusion, and the protrusion has different thickness in different positions in a horizontal direction, so that after incident light irradiated on the first reflecting surface is reflected by the protrusion, a vertical plane where formed emergent light is and a vertical plane where the incident light is have an included angle. According to the display screen provided by the invention, the visual angle of the display screen in the horizontal direction can be increased.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a display screen and a laser TV. Background technique [0002] With the advancement of science and technology, the functions and display effects of TVs have been continuously improved, and laser TVs have emerged as the times require. Laser TV uses semiconductor-pumped solid-state laser working material to generate continuous laser light with three wavelengths of red, green and blue as the light source of laser TV, and controls the three-color laser to scan images through TV signals, so as to realize the display function of images. [0003] The working principle of laser TV is to send light to the projection screen through the laser projector, and then the projection screen reflects the light to the user's eyes. Currently, Fresnel displays are usually used as projection screens for laser TVs. figure 1 It is a structural schematic diagram of a projection screen of a laser TV i...

AI Technical Summary

Problems solved by technology

[0004] However, the reflective surface of the reflective layer in the projection screen of the laser TV is a smooth plane, the incident light and the outgoing light are all in the same vertical plane, and the outgoing light located on the left and right sides of the projection screen is less, which causes the horizontal viewing angle of the projection screen to be relatively small. Narrow, which affects the display effect of laser TV

Images