Abstract: Disclosed is a light emitting diode display device comprising a light emitting diode over a substrate, and an optical element provided with liquid crystal molecule randomly distributed therein and configured to change a path of light emitted from the light emitting diode.

Abstract: Disclosed is a light emitting diode display device comprising a light emitting diode over a substrate, and an optical element provided with liquid crystal molecule randomly distributed therein and configured to change a path of light emitted from the light emitting diode.

Abstract: A light-emitting diode display apparatus may include a substrate, a light-emitting diode provided on the substrate, and a scattering pattern provided on the light emitting diode, wherein the scattering pattern is disposed such that a part of light generated from the light-emitting diode, which is not emitted toward a front surface of the light-emitting diode display apparatus, passes through the scattering pattern and does not overlap the light-emitting.

Abstract: Disclosed is a light emitting diode display device comprising a light emitting diode provided on a substrate, a lens provided on the light emitting diode and configured to have a convex curved surface, and a scattering pattern configured to have an opening area exposing at least a portion of the curved surface of the lens.

Abstract: Disclosed is a light emitting diode display device comprising a light emitting diode over a substrate, and an optical element provided with liquid crystal molecule randomly distributed therein and configured to change a path of light emitted from the light emitting diode.

Abstract: A display device includes an optical waveguide layer, a variable refractive index layer, and an optical layer. The refractive index of the variable refractive index layer changes in response to application of a drive voltage. The optical layer reflects or absorbs light. The variable refractive index layer reflects the light to be guided through the optical waveguide layer 11 toward the inside of the optical waveguide layer depending on the refractive index of the variable refractive index layer to allow the optical waveguide layer to guide the reflected light. The variable refractive index layer introduces the light to be guided through the optical waveguide layer into the variable refractive index layer depending on the refractive index of the variable refractive index layer and emits the introduced light out of the variable refractive index layer. The optical layer reflects or absorbs the light emitted from the variable refractive index layer.

Abstract: Provided is a method of creating an image on an array of optoelectronic elements comprising (a) providing a device comprising an array of optoelectronic elements and circuitry connected to each optoelectronic element, wherein the optoelectronic element comprises plural quantum dots or plural nanorods, and wherein the circuitry is configured to be capable of switching each optoelectronic element independently between an effective forward bias configuration and a reverse-bias configuration, (b) imposing an effective reverse bias on two or more of the optoelectronic elements, (c) providing circuitry that will detect the onset of photocurrent from an individual effective reverse biased optoelectronic element and that will respond to the photocurrent by changing the bias on the individual optoelectronic element to an effective forward bias.

Abstract: Provided is a device comprising a light-emitting optoelectronic element and a photocurrent-generating optoelectronic element, wherein the device further comprises an opaque element that prevents light emitted by the light-emitting optoelectronic element from reaching the photocurrent-generating optoelectronic element via a pathway within the device.

Abstract: Provided is a method of creating an image on an array of optoelectronic elements comprising (a) providing a device comprising an array of optoelectronic elements and circuitry connected to each optoelectronic element, wherein the optoelectronic element comprises plural quantum dots or plural nanorods, and wherein the circuitry is configured to be capable of switching each optoelectronic element independently between an effective forward bias configuration and a reverse-bias configuration, (b) imposing an effective reverse bias on two or more of the optoelectronic elements, (c) providing circuitry that will detect the onset of photocurrent from an individual effective reverse biased optoelectronic element and that will respond to the photocurrent by changing the bias on the individual optoelectronic element to an effective forward bias.