In the designing of optical cavity,it uses the traditional CCFL backlight system model and adopts the idea of combination between optical design and guide light design that transferring point light to line-type light to make the optics optimized with the design of light extension area on the guide light plate.

Inclined LED array and flat bottom reflector for large-sized backlight system was proposed to obtain high brightness uniformity.

Based on an integrated light guide plate (LGP) with fused micro-prisms replacing the common plane reflective film and the dot structures in the existing backlight system (BLS),the expressions of the bottom angles of the prisms and the direction of the emitting luminance are derived by using the geometric optics equations.

Through the analysis of the RGB-LED backlight system,LCD TV performance、 structure and characteristics,it has low power consumption,pure color、 long life、 small size、 fast response time.

This paper mainly deals with new ideas ahout the study of the direction in the application of the agrogeological background system (AGBS) and the plant (fruit tree) macro-ecological system.

Nozzle backpressure system is used to control droplets emit from the nozzle,so choose a suitable backpressure droplets has an important influence on the no.