Collimating plate and backlight system

摘要: There is provided a collimating plate including transparent support, multiple of light transmitting spheres fixed to the support in partial contact therewith and blocking area that blocks passage through areas other than composed between nearby areas. also backlight system housing optically closed by includes an inner surface having reflecting properties. They can produce adequately convergent collimated intensity which drops 50% at angles no more ± 15 degrees, thereby realizing liquid-crystal display provide sufficiently good contrast ratio over wide range viewing be advantageously used medical applications.