64results about How to "Narrow viewing angle" patented technology

A trash can with a power operated lid can include a sensor assembly and a lifting mechanism. The sensor assembly can include at least one light emitter and at least one light receiver, the viewing area of the at least one light receiver being limited in size. The lifting mechanism can include a controller, a drive motor, and a lifting member. The trash can with power operated lid can further include at least one position sensor for detecting the position of the lid.

A liquid crystal display device employs a white sub-pixel among RGBW-4 sub-pixels as a view control component to realize a narrow viewing angle or a wide viewing angle in a fringe field switching mode. The LCD device comprises gate lines and data lines crossing each other to define RGBW sub-pixels on a first substrate, a thin film transistor formed at each crossing of the gate and data lines; a first common electrode in each region of the RGBW sub-pixels, a pixel electrode connected to the thin film transistor and insulated from the first common electrode, the pixel electrode having at least one slit, a second substrate attached to the first substrate, wherein the first and second substrate face each other with a liquid crystal layer interposed therebetween, and a second common electrode on the second substrate and corresponding to each W sub-pixel.

A liquid crystal display device, in which a plurality of pixels are defined in a matrix form and each pixel includes red, green, blue, and white sub-pixels adjacent to one another vertically and horizontally, is disclosed. The liquid crystal display device includes first, second, and third substrates sequentially stacked from the bottom, a thin-film transistor array formed on the first substrate, a black matrix formed on the second substrate between the first substrate and the second substrate at the boundary of the respective sub-pixels, a color filter layer formed on the second substrate between the first substrate and the second substrate at the respective sub-pixels, and a barrier layer formed on the third substrate over each white sub-pixel. An opening in the white sub-pixel has a smaller size than that of openings in the red, green, and blue sub-pixels. Also, an angle defined between a normal line of the second substrate and a line that connects an edge of the barrier layer with an edge of the black matrix formed below the barrier layer is larger than a value calculated by subtracting 5 degrees from an angle causing the total reflection of light to be passed through the second substrate.

A liquid crystal display device includes a first electrode and a second electrode on a first substrate, wherein a horizontal electric field is generated between the first and second electrodes, and a third electrode on a second substrate, wherein a longitudinal electric field is generated between the third electrode and the first and second electrodes. In the liquid crystal display device, control of a wide viewing angle and a narrow viewing angle is enabled.

There are provided an organic light emitting display and a method of manufacturing the organic light emitting display. The organic light emitting display includes a lower substrate including a plurality of subpixel regions, a thin film transistor formed on the lower substrate, an organic light emitting element formed on the thin film transistor, an encapsulation unit for covering the organic light emitting element, a spacer formed on the encapsulation unit, an upper substrate disposed to face the lower substrate, and a desiccant between the lower substrate and the upper substrate. Various embodiments of the invention provide an organic light emitting display that enhances a viewing angle by minimizing a cell gap and minimizing a distortion of light, minimizes penetration of water or oxygen from the outside, and realizes a high resolution display by enhancing an aperture ratio, and a method of manufacturing the organic light emitting display.

The present disclosure relates to a holography three dimensional display in which no 3D cross-talk problem is arisen. The present disclosure suggests an apparatus for displaying hologram images comprising: a display panel displaying a hologram image; a back light unit disposed at one side of the display panel for supplying a back light; a first light path deflecting cell disposed at another side of the display panel facing away from the back light unit for forming a first prism pattern along a first direction rotating by a predetermined angle from a horizontal axis of the display panel; and a second light path deflecting cell disposed in front of the first light path deflecting cell for forming a second prism pattern along a second direction perpendicular to the first direction.

A surveillance camera system includes a first camera 5 having an angle of view θ1, a second camera 6 which is a combination of two camera modules 6a, 6b each having an angle of view θ2, a third camera 7 which is a combination of three camera modules 7a, 7b, 7c each having an angle of view θ3, and a local camera 8 having an angle of view θs. The first to third cameras 5 to 7 act as area surveillance cameras to which the optimum shooting distance is set, respectively. The local camera 8 takes a shot of a local area, which is set in a shooting area of the third camera 7, at the narrowest angle of view θs. The respective cameras take a shot individually under automatic exposure control.

It is to be made easy to arrange light emitting diodes, each including a lens having a hemispherical light emitting surface, and cover the base of the light emitting diodes with resin material.A light emitting diode 1 has a light emitting element 2, a lead section 3 that supplies power to the light emitting element 2, a base 4 that covers the lead section 3, a lens 5 having a convex light emitting surface and connected to the base 4 to cover the light emitting element 2, and a step section 6 disposed such that it surrounds the outer side of the lens 5, part of the step 6 having a different width. The step section 6 has a height that defines the amount of resin material enough to cover the lead section 3. There is also provided a light emitting diode display device 10 using a plurality of such light emitting diodes.

A light emitting diode including a side reflection layer. The light emitting diode includes: a semiconductor stack and a light exit surface having a roughened surface through which light generated from an active layer is emitted; side surfaces defining the light exit surface; and a side reflection layer covering at least part of the side surfaces. The light exit surface is disposed over a first conductivity type semiconductor layer opposite to the ohmic reflection layer, all layers from the active layer to the light exit surface are formed of gallium nitride-based semiconductors, and a distance from the active layer to the light exit surface is 50 μm or more.