An artifact mitigation system includes a projector assembly and a set of imaging optics optically coupled to the projector assembly. The artifact mitigation system also includes an eyepiece optically coupled to the set of imaging optics. The eyepiece includes a diffractive incoupling interface. The artifact mitigation system further includes an artifact prevention element disposed between the set of imaging optics and the eyepiece. The artifact prevention element includes a linear polarizer, a first quarter waveplate disposed adjacent the linear polarizer, and a color select component disposed adjacent the first quarter waveplate.

An interactive 3D display apparatus and method are provided. The interactive 3D display apparatus includes a hand sensing module configured to acquire a hand image by detecting a hand of a user and a user interaction module configured to generate a virtual object adjustment parameter by analyzing user-intended information about the hand based on the hand image acquired by the hand sensing module and comparing an analysis result with predefined user scenarios, an image rendering module configured to set a scene according to the generated virtual object adjustment parameter, generate image data by rendering the set scene, and convert the generated image data into display data, and a 3D display configured to display a 3D image including a virtual object in which a change intended by the user has been reflected according to the display data.

An optical device includes a first polarization selective reflector; a second polarization selective reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs first light having a first nonplanar polarization toward the second polarization selective reflector and the second polarization selective reflector directs at least a portion of the first light toward the first polarization selective reflector as second light. The optical device includes a first reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs at least a portion of the second light having a second nonplanar polarization toward the first reflector as third light.

There is provided a light source unit comprising a first light source having a solid light emitting device, a second light source having a luminescent material layer which emits light in a wavelength range which is different from light in a wavelength range which is emitted from the first light source by using the light emitted from the first light source as an excitation light source, and an optical device which is disposed between the first light source and the second light source, wherein the optical device has a dichroic layer which transmits a pencil of light emitted by the first light source and reflects a pencil of light emitted by the second light source, and a diffusing layer which diffuses the pencil of light emitted from the first light source.

A projection display device comprising a light source and an SBG device having a multiplicity of separate SBG elements sandwiched between transparent substrates to which transparent electrodes have been applied. The substrates function as a light guide. A least one transparent electrode comprises a plurality of independently switchable transparent electrode elements, each electrode element substantially overlaying a unique SBG element. Each SBG element encodes image information to be projected on an image surface. Light coupled into the light guide undergoes total internal reflection until diffracted out to the light guide by an activated SBG element. The SBG diffracts light out of the light guide to form an image region on an image surface when subjected to an applied voltage via said transparent electrodes.

A projector includes a projection lens and a projector body. In the projection lens, a U-shaped optical path is formed by optical axis to optical axis. A lens barrel is a U-shaped barrel. A housing of the projector body includes a storage section. The projection lens is supported rotatably about the optical axis with respect to the housing, in an up-down direction and a right-left direction of the housing perpendicular to the optical axis, between a first position where the projection lens is stored inside a storage section provided in the housing and a second position where the projection lens is protruding from the housing.

To provide a semiconductor device, a liquid crystal display device, and an electronic device which have a wide viewing angle and in which the number of manufacturing steps, the number of masks, and manufacturing cost are reduced compared with a conventional one. The liquid crystal display device includes a first electrode formed over an entire surface of one side of a substrate; a first insulating film formed over the first electrode; a thin film transistor formed over the first insulating film; a second insulating film formed over the thin film transistor; a second electrode formed over the second insulating film and having a plurality of openings; and a liquid crystal over the second electrode. The liquid crystal is controlled by an electric field between the first electrode and the second electrode.

The present disclosure provides a projection system and a projector. The projection system includes a control unit, and includes a light source, a fly-eye lens, a DMD chip, and a projection lens that are sequentially disposed along a light path. The light source is configured to supply a projection light source; an aspect ratio of the fly-eye lens is defined as an aspect ratio desired by a projection image, and the fly-eye lens is configured to receive the projection light source, and output a parallel light to the DMD chip; the DMD chip is configured to display projection content; the projection lens is configured to project the projection content to the projection plane; and the control unit is connected to the light source and the DMD chip, and is configured to control the light source to operate and send the projection content to the DMD chip.

A projection display device comprising a light source and an SBG device having a multiplicity of separate SBG elements sandwiched between transparent substrates to which transparent electrodes have been applied. The substrates function as a light guide. A least one transparent electrode comprises a plurality of independently switchable transparent electrode elements, each electrode element substantially overlaying a unique SBG element. Each SBG element encodes image information to be projected on an image surface. Light coupled into the light guide undergoes total internal reflection until diffracted out to the light guide by an activated SBG element. The SBG diffracts light out of the light guide to form an image region on an image surface when subjected to an applied voltage via said transparent electrodes.

An active display (102) can be used in a theatre environment (100) in which content to be displayed by the active display (102) can be delivered wirelessly using emitters (118). The active display (102) can include tiles (104a-104d) with detectors (106a-106d) that can detect the wireless signals. The active display (102) can include circuitry that can interpret instructions from the wireless signals for controlling the output (108a-108d) of pixels on the tiles.