The liquid crystal grating of the present disclosure may include a plurality of grating element groups for forming dark fringes and transparent fringes. The dark fringe of each grating element group may be arranged adjacent to a transparent fringe of a neighboring grating element group. Each grating element group may include a plurality of first grating elements and at least one second grating element arranged parallel to each other. At least one of the first grating elements is transparent so as to form the transparent fringe of the grating element group, and different first grating elements are enabled to be transparent so as to change positions of the transparent fringes. The second grating element is opaque, the first grating elements and the second grating element that are opaque may be used to form the dark fringes of the grating element group, and the second grating element may have a width greater than that of each of the first grating elements.

An optical film and an autostereoscopic 3D display using the same are provided. The optical film includes a concave lens layer and a birefringence layer. The concave lens layer has plurality of concaves and a presumed refractive index. The birefringence layer overlaps the concave lens layer and includes a plurality of liquid crystal units filled and cured in the concaves. The birefringence layer has a short axis refractive index. The presumed refractive index is between 100.1%-102.8% of the short axis refractive index. The autostereoscopic 3D display includes the optical film, a liquid crystal switch module, and a display panel module. The liquid crystal switch module is disposed on one side of the optical film. The display panel module is disposed on one side of the liquid crystal switch module opposite to the optical film and has a display surface facing the liquid crystal switch module. Image light generated by the display panel module can pass through the optical film after its polarization direction is modulated by the liquid crystal switch module.

To provide a display device that gives a viewer a strong stereoscopic effect or sense of depth in a two-dimensional image and a display device that gives a viewer a natural stereoscopic effect or sense of depth in a two-dimensional image, a display device including a frame portion and a display portion which has a display surface on a frame portion side and is located so as to be apart from the frame portion with a distance therebetween, in which the display portion overlaps with an opening of the frame portion, and an end portion of the display portion overlaps with the frame portion, is provided. In addition, a structure in which a corner of an inner frame of the frame portion has curvature or a structure in which the size of the inner frame of the frame portion is variable is added to the display device.

Disclosed is a stereopsis display device that includes, for example, a plurality of sub-pixels including openings; a black matrix defining the openings; and a plurality of lenticular lenses slanted at a slant angle, wherein one view matrix includes a unit of M number of sub-pixels arranged in a first direction and N number of sub-pixels arranged in a second direction, wherein M and N are a positive integer, that is divided into sub-pixels opened by the openings and sub-pixels covered by the black matrix, and wherein a number of the sub-pixels of the unit opened by the openings within a viewing zone formed by the lenticular lenses is N.

A 3D image display device includes: a display panel that includes a plurality of pixels arranged in a matrix form; and a view point division part that divides the plurality of pixels into a plurality of corresponding view points. The view point division part includes a plurality of view point division units each associated with a lenticular lens tilted at an inclination angle and an inclination angle changing unit for changing the inclination angles of the plurality of the view point division units to correspond to a portrait mode or a landscape mode. The view point division part and the display panel are configured so that a same optimal viewing distance is calculated in portrait mode and landscape mode.

A portable virtual reality device, which is provided with a board having a length to correspond the focal distances of the left and right lens; left and right supporting boards that are deployed and folded left and rightward on a front surface of the board based on the board; left and right lens plates that are deployed and folded left and rightward on a rear surface of the board based on the board. The smart phone is mounted simply to correspond to the focal distances of the left and right lens when it is used, and when it is carried, the left and right lens plates and the left and right supporting boards are fold to form a thin film to be carried conveniently.

An autostereoscopic display comprises a pixelated display panel comprising an array of single color pixels or an array of sub-pixels of different colors and a view forming arrangement comprising an array of lens elements. The pixels form a hexagonal grid, and the lenses also repeat in a hexagonal grid. A vector p is defined which relates to a mapping between the pixel grid and the lens grid. Regions in the two dimensional space for this vector p are identified which give good or poor banding performance, and the better banding performance regions are selected.

The object of the present invention is a vibrating grid based space generating device, which enables 3D perception for the user, and which comprises a containing frame (1), an image display surface (20), and a vibrating grid (10) placed in front of the image display surface (20), wherein vertically positioned, angularly arranged blocking strips (13), all having a set depth, are attached in immoveable fashion to the frame (11) of the vibrating grid (10), such that their front edges are radially focused on a single vertical edge at a point along a focal arc (26); and the vibrating grid (10) is connected to the containing frame (1) by means of lower and upper connecting elements (12a, 12b) in a manner that accomplishes vibration in the horizontal plane along an arc of vibration (18).

A display device can include a first display configured to produce an image and a plurality of transparent displays. Each of the plurality of transparent displays can be configured to produce a slice of the image to provide depth and a three-dimensional effect to the image, or at least one of the plurality of transparent displays can be configured to block, diffuse, or scatter light associated with the image produced by the first display so that different ones of a plurality of users see different content derived from the image produced by the first display. Each of the transparent displays can be substantially transparent. Further, at least one of the plurality of transparent displays can be made using Smectic A liquid crystals.

An autostereoscopic display device comprises a display arrangement such as an emissive display arrangement or an reflective display arrangement, with an array of spaced pixels. A light guiding arrangement has an array of light guide columns, with one column over each display pixel or over a group (such as a column) of pixels. The light guide columns comprise aside wall which tapers outwardly to define a funnel shape with the pixel at the smaller base of the funnel. The funnel provides collimation to reduce cross talk in the display, which is particularly problematic for 3D autostereoscopic displays.