134results about How to "Improve light transmission efficiency" patented technology

A multi-domain vertical alignment liquid crystal display device is disclosed. The multi-domain vertical alignment liquid crystal display device includes an upper substrate and a lower substrate parallel to each other, a liquid crystal layer between the upper substrate and the lower substrate, a common electrode disposed between the liquid crystal layer and the upper substrate, and a pixel electrode disposed between the liquid crystal layer and the lower substrate. Preferably, the common electrode includes an upper jagged pattern and the pixel electrode includes a lower jagged pattern.

A liquid crystal display panel comprises a first substrate, a second substrate and a spacer. The first substrate comprises a plurality of pixel units. Each pixel unit at least comprises two gate lines and two film transistors connected with the two gate lines. The second substrate is opposite to the first substrate. The spacer is disposed between the first substrate and the second substrate. The spacer overlaps at least one part of the first film transistors and at least one part of the second film transistors in the vertical projection direction.

The invention discloses a full-polarization-state integer ratio power distributor with a photonic crystal waveguide. The full-polarization-state integer ratio power distributor comprises the photonic crystal waveguide formed in a photonic crystal with a complete band-gap; the photonic crystal consists of a background dielectric cylinder array; the photonic crystal waveguide consists of a transverse waveguide and a perpendicular waveguide perpendicularly connected with the transverse waveguide; one end of the transverse waveguide is an input end, and the other end of the transverse waveguide is an output end; the perpendicular waveguide is another output end; and waveguide flaw dielectric cylinders are arranged in the middle of the transverse waveguide. The full-polarization-state integer ratio power distributor is small in structural size and high in light transmission efficiency, can be integrated conveniently and efficiently, is suitable for large-scale light path integration, and can realize a full-polarization-state integer ratio power distribution function.

The invention discloses a deep-ultraviolet light source and an encapsulating method thereof. The deep-ultraviolet light source comprises a deep-ultraviolet light-emitting diode and a mounting bracket, wherein the deep-ultraviolet light-emitting diode is fixed on the mounting bracket; a transparent protective medium layer is arranged on the outer part of the deep-ultraviolet light-emitting diode; the transparent protective medium layer is formed with a bump structure on the end surface of the deep-ultraviolet light-emitting diode; the transparent protective medium layer is formed with a sunken structure on the end surface of the deep-ultraviolet light-emitting diode. The bump transparent protective medium layer is formed on the end surface of the deep-ultraviolet light-emitting diode, and the sunken transparent protective medium layer is formed on the end surface of the deep-ultraviolet light-emitting diode, so that deep-ultraviolet loss, caused by total reflection, of the side surface and the positive end surface can be effectively improved, the ultraviolet radiation dose is increased, and the light-transmitting efficiency of the deep-ultraviolet light source is improved. Besides, the transparent protective medium layers are adopted to protect the deep-ultraviolet light-emitting diode without adopting a quartz lens, so that the encapsulating cost is effectively reduced.

The invention provides an optical waveguide device and method of manufacturing the same. No light path block article exists between the light-emitting element and optical waveguide, wherein, light-emitting elements are provided on the substrate; an under-cladding layer provided on a portion of the upper surface of the substrate except for the light emitting element provision region is provided; and a core covering the light emitting element and the under-cladding layer on the substrate and serving as a path of light emitted from the light emitting element, is formed. The core fixes up the light-emitting element and makes the light generated from self-luminescence elements to directly irradiate in.

A near field light generating device generating near field light from incident light by using a solid immersion mirror and a heat assisted magnetic recording head with the same are provided. The near field light generating device includes a light source; a waveguide core which transmits light; and a solid immersion mirror, which generates near field light, including an upper transmission surface through which light from the waveguide core is transmitted into the solid immersion mirror, a lower reflection surface, opposite the upper transmission surface, which reflections light incident thereon, lateral reflection surfaces, facing each other at sides of the solid immersion mirror, which reflect light incident thereon, and a lower transmission region disposed at a center of the lower reflection surface. Light reflected from the lateral reflection surfaces forms a light spot on the lower transmission region.