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Invention Grant
CN106405933B 背光模组和液晶显示装置 失效 - 权利终止

背光模组和液晶显示装置
Abstract:
公开了一种背光模组和液晶显示装置。该背光模组包括背光源、分束器和光束转换部。分束器将背光源提供的光转换为第一和第二偏振光束。第一和第二偏振光束为偏振方向相互垂直的线偏振光。光束转换部通过全反射将第一偏振光束转换为第三偏振光束，并且将第二和第三偏振光束经由背光模组的出光侧出射，第二和第三偏振光束为偏振方向相同的线偏振光。或者光束转换部通过全反射将第一和第二偏振光束分别转换为第四和第五偏振光束，并且将第四和第五偏振光束经由背光模组的出光侧出射，第四和第五偏振光束为偏振方向相同的线偏振光。藉此，来自背光源的光高效地用于照射液晶显示面板，并且显著提升液晶显示面板的亮度。
Abstract(English):

A backlight module and a liquid crystal display device are disclosed. The backlight module comprises a backlight source, a beam splitter and a light beam conversion portion. The beam splitter converts light from the backlight source into a first and second polarization light beam. The light beam conversion portion converts the first polarization light beam into a third polarization light beam through total reflection, and outputs the second and third polarization light beam through a light exit side. Alternatively, the light beam conversion portion converts the first and second polarization light beam into a fourth and fifth polarization light beam through total reflection, and outputs the fourth and fifth polarization light beam through the light exit side. To this end, light from the backlight source is efficiently applied to irradiate a liquid crystal display panel, and the brightness of the liquid crystal display panel significantly improves.

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