An optelectonic arrangement and a lighting device are disclosed. In an embodiment the arrangement includes a semiconductor chip for generating radiation and a radiation conversion element located downstream of the semiconductor chip with respect to a radiation direction, wherein the radiation conversion element includes a plurality of conversion bodies each with a longitudinal extension axis, and wherein a spatial orientation of the longitudinal extension axes has a preferred direction.

A backlight for providing uniform illumination to a display panel includes a plurality of discrete light sources. A multilayer polymeric partial reflector is disposed on the plurality of discrete light sources. For substantially normally incident light the partial reflector includes a reflection band includes a blue wavelength, a reflectance greater than about 80% at the blue wavelength, a left band edge between about 370 nm to about 420 nm, a right band edge between about 500 nm and 600 nm, and an average transmission between about 20% to about 80% for visible wavelengths greater than the right band edge. A reflective polarizer is disposed on the partial reflector. For substantially normally incident light having the blue wavelength, the reflective polarizer reflects at least 60% of the light having the first polarization state and transmits at least 60% of the light having the second polarization state.

A light guiding assembly and a fabricating method, a backlight module, and a display device are provided. The light guiding assembly includes a waveguide layer, and a coupling grating structure including at least two gratings, wherein at least one of the at least two gratings is located inside the waveguide layer, and orthographic projections of the at least two gratings on a surface of the waveguide layer at least partially overlap, the coupling grating structure being configured such that incident light propagates in the waveguide layer.

A device for producing polarized light includes a plurality of photonic crystal grid structures on a substrate. The plurality of photonic crystal grid structures includes one or more structured regions for the transmission of polarized blue light, polarized green light, and polarized red light. A green quantum dot layer is substantially positioned on the one or more structured regions for the transmission of polarized green light and a red quantum dot layer is substantially positioned on the one or more structured regions for the transmission of polarized red light. A blue light emitting diode array is disposed on the polarized light device such that the emission from the blue light emitting diode array facilitates the emission of red and green light from the red and green quantum dot layers.

An apparatus for simultaneously recording a first live video stream and projecting a second live video stream onto an interactive touch screen, the apparatus comprising (a) a backlight panel; (b) a horizontally polarized screen associated with one face of the backlight panel; (c) a camera having a lens, the camera having controllable frame rate and exposure; and, (d) a LCD screen.

A backlight unit including: a light source; and a photoconversion layer disposed separately from the light source to convert a wavelength of incident light from the light source and thereby provide converted light, wherein the photoconversion layer includes a polymer matrix and a plurality of anisotropic semiconductor nanocrystals disposed in the polymer matrix, and wherein the polymer matrix includes a polymer having a repeating unit represented by Chemical Formula 1:

##STR00001## wherein R.sup.1 is hydrogen or a methyl group, each R.sup.2 is independently hydrogen or a C1 to C3 alkyl group, and R.sup.3 is a C2 to C5 alkyl group, wherein the polymer exhibits elasticity at a temperature between a glass transition temperature of the polymer and about 100° C., and wherein the plurality of anisotropic semiconductor nanocrystals are aligned along a long axis thereof for the photoconversion layer to emit polarized light.

Methods and linear polarization devices for linear light polarization and display and illumination devices utilizing such methods and linear polarization devices are provided. The linear polarization devices generate linearly polarized light having a desirable axis of polarization from unpolarized light and include a first non-absorptive linear polarizing filter and one or more rotating filters and second linear polarizers. The first non-absorptive linear polarizing filter has a predetermined axis of polarization for decomposing incident light into a transmitted beam of light and a reflected beam of light wherein at least one of the transmitted beam of light and the reflected beam of light has an undesirable axis of polarization. The one or more rotating filters rotate the polarization axis/axes of the beam/beams of light having undesirable axis of polarization to the desirable axis of polarization. The second polarizers purify the beams of linearly polarized light from any unwanted polarization component just before they are transmitted.

Provided is a liquid crystal display device that has excellent visibility while using a protective film comprising a polyester film. The liquid crystal display device comprises a backlight light source, and a liquid crystal cell disposed between two polarizers; the backlight light source being a white light-emitting diode; each of the polarizers comprising a polarizing film and protective films laminated on both sides of the polarizing film; and at least one of the protective films being a polyester film having a retardation of 3,000 to 30,000 nm.

A light source apparatus according to the present disclosure includes a light source section, a first polarization separator that transmits in a first polarization component of the first light and reflects a second polarization component of the first light, a second polarization separator that reflects the first polarization component, a diffuser that diffuses the second polarization component and causes the diffused second polarization component, a first wavelength converter that converts the wavelength of the first polarization component into second light, and a second wavelength converter that is disposed in a position shifted in a fifth direction from a placement plane where the first polarization separator and the second polarization separator are placed, converts the wavelength of the excitation light into third light, and the second polarization separator transmits the first polarization component of the second light and reflects the second polarization component of the second light.

The present invention provides a liquid crystal display device and a manufacturing method thereof. The liquid crystal display device uses a quantum rod orientation layer (2) to conduct parallel alignment of a quantum rod layer (3) so that the aligned quantum rod layer (3) may replace a conventional lower polarizer. The liquid crystal display device manufacturing method applies an inclined vapor deposition process to form a quantum rod orientation layer (2). The quantum rod orientation layer (2) includes a plurality of grooves (21) that has an extension direction substantially perpendicular to a transmission axis direction of an upper polarizer (7). A quantum rod layer (3) is then formed on the quantum rod orientation layer (2). The quantum rod layer (3) so formed includes a plurality of quantum rods (31) that has a long axis direction substantially parallel to the extension direction of the grooves (21), namely parallel alignment of the quantum rod layer (3). The aligned quantum rod layer (3) may replace a conventional lower polarizer to improve light transmission rate and utilization of backlighting, increasing displaying brightness and reducing manufacturing cost.