63results 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.

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.

A liquid crystal display device including a liquid crystal panel being capable of gradation display is provided with a LUT and a drive signal generation section for adjusting gradation curve's distortion with respect to a viewing angle, which indicates a relation between a gradation and a luminance ratio on a display screen of the liquid crystal panel. With this arrangement, it is possible to freely switch on the display screen of the liquid crystal panel between a wide viewing angle display and a narrow viewing angle display. Therefore, it is possible to provide a liquid crystal display device which adjusts the gradation curve's distortion with respect to the viewing angle on the display screen to obtain a high contrast and an excellent gradation curve in a wide range of viewing angle, thereby improving a display quality level of a display screen; and which realizes a display screen with a narrow viewing angle, thereby allowing information not desired to be seen by other people to be securely displayed thereon.

An imaging device for receiving a radio signal output from an RF tag attached to a subject to acquire identification information of the subject, includes: an imaging unit for continuously imaging a plurality of subjects to acquire a moving image; a radio receiver for receiving a plurality of radio signals respectively output from RF tags attached to the subjects to acquire a plurality of units of subject identification information respectively indicated by the radio signals, the subject identification information identifying a corresponding subject, the radio receiver moving together with the imaging unit and having directivity in a direction approximately the same as an imaging direction of the imaging unit; a moving amount calculation unit for calculating a moving amount of the radio receiver based on the acquired moving image; and a subject direction specifying unit for specifying directions of the subjects respectively identified by the plurality of units of subject identification information based on changes in field intensities of the radio signals, the changes corresponding to the moving amount of the radio receiver.

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.

An electrochromic device with high transmittance is for use as a display device. The electrochromic device includes at least a first and a second electrode formed on an insulative substrate and a conductive layer formed in contact with the insulative substrate, the first electrode, and the second electrode. Since an electrode layer functions in one layer, the transmittance through the device is enhanced, and the device can be fabricated in a simple process, allowing a reduction in the device fabrication costs.

An inner shell (10) for vehicle bodies molded from a foam plastic includes at least one flap (14) which can move optionally between a non-usage position to a usage position. Preferably the flap (14) serves as a sun visor, allows access to a function element or a cavity (16), or both. According to the invention the flap (14) is formed as a part of the inner shell (10) and in its non-usage position closes essentially surface-flush with the areas of the inner shell (10) adjacent to the flap (14).

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.

The invention provides a display panel of a stereoscopic image display. The display panel comprises a plurality of pixel regions, red, blue and green sub-pixel regions in each pixel region are arranged in parallel along the vertical direction, the blue sub-pixel region in each pixel region is in the middle of the pixel region, and the red and green sub-pixel regions in each pixel region are at the upper side and the lower side of the pixel region. With the adoption of the arrangement, the viewing angle of the display panel of the stereoscopic image display can be further reduced, so that the confidentiality of displayed image information can be promoted to prevent information leakage.

A liquid crystal display includes a backlight (3), a liquid crystal display panel (1), and a viewing angle control panel (2) for controlling the viewing angle of the display panel (1), the liquid crystal display further including a lens sheet (41) provided between the backlight (3) and the liquid crystal display panel (1). This provides a display device system which is capable of providing better blocking.

Provided is a liquid crystal display device that is narrow in viewing angle and that is capable of excellent image quality. The liquid crystal display device of the present invention includes: a liquid crystal panel; a prism sheet; a light guide plate; and a visible light absorber, which are provided in the stated order from a viewer side. The prism sheet has a convex portion on the opposite side from the viewer side. The visible light absorber has a luminous reflectance of 30% or less. In one embodiment, the liquid crystal display device of the present invention is free from a reflective polarizing plate. In one embodiment, the prism sheet includes a plurality of unit prisms, which are each shaped to have a triangular prism shape and which are arranged side by side.

An apparatus and method for driving a liquid crystal display device, which can selectively provide a wide viewing angle and a narrow viewing angle and improve the narrow viewing angle characteristics. The driving apparatus includes a liquid crystal panel having quad type unit pixels each including red, green and blue (RGB) sub-pixels and an electrical controlled birefringence (ECB) sub-pixel, a data driver for driving data lines of the liquid crystal panel, a gate driver for driving gate lines of the liquid crystal panel, and a timing controller for generating ECB data based on externally inputted RGB video data such that each of the unit pixels maintains a brightness of a constant level to form a narrow viewing angle, arranging the generated ECB data together with the video data and supplying the arranged data to the data driver.

The invention relates to the technical field of displaying and provides a display device and a manufacturing method thereof. An optical modulation component is arranged on an emergence side of a display panel and comprises optical modulation units in one-to-one correspondence to pixel units in the display panel. Each optical modulation unit comprises a plurality of prisms and is configured to refract light rays emitted by the pixel units to enable the refracted light rays to be emitted in a preset angle. Since the multiple optical modulation units are arranged on the emergence side of the display panel, and each optical modulation unit comprises the multiple prisms, the light emergence direction can be accurately controlled, large-angle light rays can be converted into light rays emitted in the preset angle through refraction, and accordingly an observation view angle of the display device is narrowed, and a peep prevention function is achieved. In addition, since the large-angle lightrays can also be received by human eyes, the light ray utilization rate can be increased, and power consumption of the display device is reduced.

[Problem to be Solved]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.

[Solution]

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.

The present invention provides a 3D display panel and a 3D display system. The system comprises the 3D display panel and polarizer glasses. A first optical retardation value of a quarter wave (λ/4) retarder film of the 3D display panel can be designed according to a second optical retardation value of the polarizer glasses. The present invention can improve a narrow viewing angle problem existing in the conventional 3D display.

The invention provides a high-image-quality, wide-viewing-angle liquid crystal display device that can be manufactured at low cost, and to provide an electronic apparatus provided with such a liquid crystal display device. A liquid crystal display device of the invention can include an upper substrate and a lower substrate which are disposed facing each other, a liquid crystal layer interposed between the upper substrate and the lower substrate, an upper polarizer and a lower polarizer which are separated by the liquid crystal layer and are disposed adjacent to two opposite sides of the liquid crystal layer, and a liquid crystal panel having dot regions each provided with a transmissive display area and a reflective display area. One of the upper substrate and the lower substrate can be provided with a liquid-crystal-layer thickness adjustment layer on a side of the substrate adjacent to the liquid crystal layer. This liquid-crystal-layer thickness adjustment layer provides different thicknesses for the liquid crystal layer in the transmissive display area and the reflective display area. The upper substrate has a light-diffusing layer disposed adjacent to the outer surface of the upper substrate. A half-width α for the contrast-versus-viewing-angle characteristics of the liquid crystal panel and a half-width β for the diffusion characteristics of the light-diffusing layer satisfy the relationship α≧3β.