44results about How to "Polarized" patented technology

The invention provides a light source, a projection display apparatus and a lamp. The light source comprises a first excitation source and a second excitation source, and also comprises a wavelength conversion wheel; the wavelength conversion wheel comprises a wavelength conversion layer and a first reflective type polarizing film which are arranged in a stacked manner; the wavelength conversion wheel also comprises a first driving apparatus used for driving the wavelength conversion layer and the first reflective type polarizing film to turn; first excitation light and second excitation light are incident to a first position and a second position of the wavelength conversion wheel respectively to excite the wavelength conversion layer so as to emit first light with a first polarizing direction and second light with a second polarizing direction from the first position and the second position respectively; and the first light and the second light form mixed light in a position of a polarizing light mixing apparatus. According to the light source, the projection display apparatus and the lamp disclosed by the invention, based on the polarization property of the first light and the second light, the first light and the second light are combined into one beam through the polarizing light mixing apparatus, so that the luminance is greatly improved.

The invention discloses a liquid crystal display screen, a composite substrate, and a manufacturing method. The composite substrate comprises a substrate, a carbon nano-tube layer, and an optical alignment base material. The carbon nano-tube layer is bonded on the surface of the substrate through the optical alignment base material. The carbon nano-tube layer comprises a plurality of carbon nano tubes extending along a same direction. Since the extension directions of the plurality of carbon nano tubes in the carbon nano-tube layer are the same, the carbon nano tubes arranged in parallel would form a plurality of grooves arranged in parallel. The grooves can be used for initial alignment for liquid crystal molecules, that is, the carbon nano-tube layer can be used as an alignment layer. The carbon nano-tubes have polarization effect, and have transmission effect on light whose polarization direction is vertical to the extension direction of the carbon nano tubes, and have absorption effect on light whose polarization direction is parallel to the extension direction of the carbon nano tubes, that is, the carbon nano-tube layer can be used as a polarization layer. Thus, the composite substrate can be used as an alignment layer, and also can be used as the polarization layer. Therefore, the composite substrate is used as a TFT array substrate, and is simple in structure and low in cost.