摘要:
According to one embodiment, a display device includes a display unit, an imaging element, and a first reflecting unit. The display unit emits a light. The imaging element has a major surface and is configured to form a real image of an object at a symmetric position of the object with the major surface serving as a plane of symmetry. The imaging element includes a portion not overlapping the display unit as viewed along a normal direction of the major surface. The first reflecting unit includes a portion facing the major surface, and is configured to reflect the light emitted from the display unit and to cause the light to be incident on the portion of the imaging element not overlapping the display unit.
摘要:
A light emitting apparatus, includes: a substrate; a semiconductor device including a semiconductor layer formed integrally on a major surface of the substrate; and a light emitting device formed separately from the substrate. The light emitting device is mounted on the major surface of the substrate, electrically connected to the semiconductor device, and thermally connected to the substrate.
摘要:
A display device includes a light source, an optical waveguide, a light-extracting portion, a liquid crystal dispersion layer and a drive circuit. The optical waveguide has two ends to guide light from one of the two ends to the other end. The light is emitted by the light source. The light-extracting portion is provided to a side face of the optical waveguide. The liquid crystal dispersion layer is included in the light-extracting portion and includes liquid crystal droplets whose mean diameter is 100 nm or less. The drive circuit applies a voltage to the light-extracting portion to generate an electric field in the liquid crystal dispersion layer so that the light transmitting through the optical waveguide is scattered to be extracted.
摘要:
According to one embodiment, a display device includes: a plurality of light guide units; a light source; a support substrate; a first electrode transmissive to light provided on the second major surface; a counter substrate opposed to the second major surface and provided away from the first electrode; a second electrode transmissive to light provided on a surface of the counter substrate opposed to the second major surface; and a plurality of spacers provided between the support substrate and the counter substrate and arranged between adjacent ones of the plurality of light guide units when projected onto a plane parallel to the first direction and the second direction. Optical characteristics in a region which is surrounded by adjacent ones of the spacers, the first electrode and the second electrode are changed by a voltage which is applied between the first electrode and the second electrode.
摘要:
According to one embodiment, a display device includes light guide bodies, light sources, light extraction units, and a control unit. Each light guide body includes one end, another end on an opposite side, and a side surface. The light guide bodies are disposed with a pitch. Each of the light sources is juxtaposed to the one end of each light guide body and configured to cause a light to enter the light guide bodies. Each light extraction unit faces the side surface. Each light extraction unit includes light extraction elements. The control unit is configured to supply an electric signal to each light extraction unit. The control unit makes the light extraction units extract the light that enters the light guide bodies and propagates through the light guide bodies in accordance with the electric signal. Positions between the light extraction elements are uniformly distributed.
摘要:
The invention relates to an optical waveguide capable of extracting light especially from arbitrary positions of the same. An object of the invention is to provide an optical waveguide capable of extracting light efficiently from arbitrary positions of the same. To achieve the above object and according to one aspect of the invention, an optical waveguide is provided with a core for guiding light, a clad and a displacing structure for the core to contact the clad. The core has a first refractive index. The clad has a second refractive index higher than the first refractive index.
摘要:
According to one embodiment, a display element includes a light guide and a light extraction unit. The light guide extends in one direction, and is optically transmissive. The light extraction unit includes a displacement layer, a reflective layer provided on the displacement layer, and a light extraction layer provided on the reflective layer to oppose the light guide. A plurality of prisms are formed in one major surface of the light extraction layer opposing the reflective layer. A trough line is formed between mutually-adjacent ridgelines. The element has at least one selected from a configuration in which an angle between one of the oblique surfaces and one other major surface of the light extraction layer opposing the light guide is different between corresponding oblique surfaces of two mutually-adjacent prisms and a configuration in which the ridgelines of the prisms are non-parallel to the trough line between the ridgelines.
摘要:
A display device includes a light source, an optical waveguide, a light-extracting portion, a liquid crystal dispersion layer and a drive circuit. The optical waveguide has two ends to guide light from one of the two ends to the other end. The light is emitted by the light source. The light-extracting portion is provided to a side face of the optical waveguide. The liquid crystal dispersion layer is included in the light-extracting portion and includes liquid crystal droplets whose mean diameter is 100 nm or less. The drive circuit applies a voltage to the light-extracting portion to generate an electric field in the liquid crystal dispersion layer so that the light transmitting through the optical waveguide is scattered to be extracted.
摘要:
In one embodiment, in an optical device, a bar-shaped optical waveguide has either a polygonal or circular cross-sectional shape. A light entry portion is formed in a circumferential area of a first-end surface of the optical waveguide. The light entry portion includes a sloping surface having a normal vector containing a component in a circumferential direction of the first-end surface. An incident light beam travels towards a second-end surface of the optical waveguide while repeating total reflections on a side surface of the optical waveguide. The incident light beam travels without passing through a central portion in a cross section of the optical waveguide. A light exit portion is formed in the side surface of the optical waveguide. The light exit portion is configured to let the light beam in the optical waveguide out of the optical waveguide.
摘要:
According to one embodiment, a display device in which one display screen is formed by a plurality of one-dimensional device structures is disclosed. Each of the one-dimensional device structures includes a pixel array including a plurality of pixels arranged linearly, a first driving line group configured to drive the pixel array, a plurality of inter-pixel circuits arranged between a first pixel and a second pixel of the plurality of pixels to perform a sequential operation from the first pixel to the second pixel, and a second driving line group configured to drive the inter-pixel circuits.