Abstract: According to one embodiment, a display device includes light emitting units, light guides, light extraction units, and a light receiver. The light emitting unit emits a light. The light guide guides the light. The light guide includes a side surface, and first and second ends. The side surface extends along a first direction. The light guides are disposed in a second direction intersecting the first direction. The light extraction unit faces the side surface and emits a light guided through the light guide toward an outside. The light receiver faces the first end and includes a photoelectric converter. The photoelectric converter receives a light which is guided through the light guide and emitted from the first end.

Abstract: A display apparatus includes a plurality of optical waveguides which are arranged in a row and have light output areas, a plurality of light sources which emit light beams incident upon the optical waveguides, a plurality of scanning lines whose cross-sections have convex portions and concave portions alternately positioned in a column, wherein inner surfaces of each of the convex portions and the concave portions are arranged so as to face the optical waveguides, and, by applying an electric field, the convex portions and the concave portions undergo displacement, and a control unit which controls the scanning lines with the application of an electric field sequentially.

Abstract: According to one embodiment, a display device includes a light source, a light guide, a light extraction unit, and a drive circuit. The light source emits a first light. The light guide has a first end, a second end arranged in a first direction, and a side surface extending in the first direction. The light guide guides the first light from the first end toward the second end. The light extraction unit opposes the side surface, and includes first and second conductive units provided parallel to the side surface. The light extraction unit extracts the first light guided inside the light guide by coming close to the side surface for a state in which a voltage is applied to the first and second conductive units. The drive circuit applies the voltage between the first and second conductive units.

Abstract: According to an aspect of the present invention, there is provided with a screen transmission device, including: a first receiver configured to receive usage state information indicating usage states of a plurality of screen display devices by a user from each the screen display device; a second receiver configured to receive a message of requesting start-up of a window from the screen display device out of the screen display devices; a determiner configured to determine a screen display device on which the window is to be started up out of the plurality of screen display devices based on the usage states of each the screen display device; a screen data generator configured to generate screen data of the window; and a transmitter configured to transmit the screen data of the window to the screen display device determined by the determiner.

Abstract: A display apparatus includes a display part in which a plurality of light guide elements are extended in the column direction, and are arranged in the row direction in parallel with each other. A plurality of scanning lines are extended in the row direction to intersect the light guide elements, arranged in the column direction, transmission lines are extended along the light guide elements, and each of the transmission lines is connected to the scanning lines, respectively. Control elements are provided at intersections of the light guide elements and the scanning lines, and each of the control elements causes a part of a light beam traveled in the light guide element to the outside of the light guide element in response to a scanning signal supplied to the scanning line through the transmission line.

Abstract: 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.

Abstract: 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.

Abstract: According to one embodiment, a display device includes a light source, a light guide, a light extraction unit, and a drive circuit. The light guide is configured to guide light emitted by the light source from one end side of the light guide toward one other end side of the light guide. The light extraction unit is provided on a surface of the light guide, and includes a liquid crystal dispersion layer, a first electrode, and a second electrode. The liquid crystal dispersion layer includes liquid crystal droplets, and the first and second electrodes are configured to cause an electric field to occur in the liquid crystal dispersion layer. The drive circuit is configured to apply a voltage between the electrodes. Liquid crystal molecules included in the liquid crystal droplets are configured to have an orientation parallel to the surface of the light guide in the electric field.

Abstract: A light-emitting element includes: a light source; a light guide member having a columnar shape and comprising a plurality of side surfaces containing a pair of parallel total reflection principal surfaces and other surfaces than the total reflection principal surfaces, an upper bottom surface disposed so that light from the light source reaches the total reflection principal surfaces, and a lower bottom surface disposed opposite to the upper bottom surface; clad portions provided on the other side surfaces of the light guide member than the total reflection principal surfaces, the clad portions having a smaller refractive index than that of the light guide member; and a light extraction portion provided on one part of the total reflection principal surfaces.

Abstract: 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.

Abstract: According to one embodiment, a light guide body includes a light guide plate and a prism array unit. The light guide plate has a major surface, a first side surface, and a second side surface on an opposite side to the first side surface. The prism array unit is provided on the major surface to be in contact with the major surface. The prism array unit includes a plurality of prism bodies. Each of the prism bodies extends along a first direction from the first side surface to the second side surface. The prism bodies are disposed to align along a second direction parallel to the major surface and perpendicular to the first direction. A vertex angle of the prism bodies is a substantially right angle. A refractive index of the prism bodies is higher than a refractive index of the light guide plate.

Abstract: 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.

Abstract: A display element includes a light source, an optical waveguide, a light-extracting portion. The optical waveguide has two ends and a side surface. One of the two ends is near the light source. The other of the two ends is far from the light source. The side surface extends from the one end to the other end. The light-extracting portion is provided near the side surface to extract light out of the optical waveguide. In addition, the other end changes a light path of forth-traveling light so that an incident angle of back-traveling light is smaller than the incident angle of the forth-traveling light.

Abstract: 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.

Abstract: There is provided with a method performed in an image transmission apparatus capable of executing first communication and second communication whose communication speed is lower than that of the first communication with a display apparatus, including: generating an image to be displayed on the display apparatus; detecting whether the first communication is executable or not; transmitting the generated image to the display apparatus via the first communication when the first communication is executable; transmitting a compressed image obtained by compressing the generated image to the display apparatus via the second communication when the first communication is not executable; and transmitting compression utilization information required to display the compressed image on the display apparatus to the display apparatus via at least one of the first communication and the second communication when the first communication is executable.

Abstract: According to one embodiment, a display device includes a display unit and a drive circuit. The display unit includes a first display region to display a first image and a second display region to display a second image. The display unit includes a first support substrate, a second support substrate, and a liquid crystal layer. The second support substrate is disposed to oppose the first support substrate. The liquid crystal layer is interposed between the first support substrate and the second support substrate and is held by the first support substrate and the second support substrate. The drive circuit drives the display unit.

Abstract: 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.

Abstract: A method of manufacturing a light emitting device. The method includes: mounting a light emitting chip on a substrate; forming a transparent resin portion and a phosphor layer by using a liquid droplet discharging apparatus, the transparent resin portion being formed in a shape of a dome and covering the light emitting chip to fill an exterior thereof on the substrate, a phosphor layer containing phosphor and being formed on an exterior of the transparent resin portion close to at least a top side thereof; and forming a reflecting layer at a position exterior of the transparent resin portion and the phosphor layer close to the substrate.

Abstract: It is made possible to provide a low-cost highly reliable display device which does not lose the flexibility of itself and which can transmit the allowable range of the flexibility to the user. A display device includes: a display part having a display face and being flexible; and a restriction part having a plurality of first convex parts to restrict a bending quantity of the display part.

Abstract: A method of manufacturing an active matrix type display device, which is reliable and flexible, is provided. An active matrix type display device according to an aspect of the present invention includes: a first substrate, which is flexible; a thin glass layer provided on the first substrate via an adhesion layer, and having projections and depressions on a surface thereof opposing to the first substrate, the projections and depressions having rounded tips and bottoms; active elements provided on the thin glass layer, each active element corresponding to a pixel; a display provided above the thin glass layer, and driven by the active elements to display an image pixel by pixel; and a second substrate provided on the display, and having an opposing electrode formed thereon.