807results about How to "Improve viewing angle" patented technology

A vertically alignment mode liquid crystal display device having an improved viewing angle characteristic is disclosed. The disclosed liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage being applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.

A vertically alignment mode liquid crystal display device having an improved viewing angle characteristic is disclosed. The disclosed liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage being applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.

A vertical alignment mode liquid crystal display device having an improved viewing angle characteristic uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage being applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of two substrates includes a structure as domain regulating means, to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.

The present invention provides a unique system and method that facilitates navigating smoothly and gracefully through any type of content viewable on portable devices such as cell-phones, PDAs, and / or any other hybrids thereof. In addition, such navigation can be performed while preserving perspective and context with respect to a larger amount of content. Pointing devices can also be used to navigate through content—the amount or detail of the content being dependant on the speed of the pointing device. Additionally, a semi-transparent overview of content can be overlaid a zoomed-in portion of content to provide perspective to the zoomed in portion. Content shown in the semi-transparent overview can depend on the location of the pointing device with respect to the content.

A fitness watch case (502) is disclosed comprising a display housing (504) that houses a display for displaying information to a user; and a user interface (506) having touch-sensitive input means for controlling the watch. The user interface (506) is spaced apart from the display housing (504), thereby enabling the user to operate the user interface using only a single finger. The watch case (502) is insertable into a strap (508) to form a fitness watch (500) that can be worn on the wrist of the user.

The present invention provides a unique system and method that facilitates navigating smoothly and gracefully through any type of content viewable on portable devices. Such navigation can be performed while preserving perspective and context with respect to a larger amount of content. The navigation can be key-based such that one or more keys of a keypad can be employed to browse through, zoom in, and / or zoom out of content. In one aspect, the content can be segmented into any number of sub-sectors or segments such that each segment can correspond to a particular number key, whereby particular portions of content can be viewed in greater or less detail by pressing or tapping on the corresponding number key. Furthermore, when viewing a first portion of content, nearby content can be glanced at by pressing and holding the respective key. When the key is released, the view returns to the first portion.

The invention provides a panorama splicing method based on camera self-calibration technology, comprising the following steps of: using a plurality of cameras for collecting the panorama image of the scene; calibrating internal parameters and external parameters of the cameras by self-calibration algorithm according to the collected image; according to the calibrated internal parameters and external parameters of the cameras, selecting a best calibration plane, and correcting the image to the best calibration plane; and splicing all the images on the best calibration plane into a whole image, and fusing the overlapping regions of the whole image. The invention adopts the self-calibration technology based on absolute pairing quadric surface to automatically recover the internal parameters and the external parameters of the cameras, so that a hand-hold camera can be used by non-professional staff without a professional device.

A belt clip apparatus is provided that attaches to a case for a portable electronic device (e.g., a music player, video player, cell phone, etc.) that both swivels and pivots on two different axes. Such a clip can attach to an article of clothing and allow the user to view the screen and access the controls of an electronic device without having to first remove the device from the article of clothing. In one embodiment, the apparatus can stand on a flat surface in either an angled portrait or landscape orientation when attached to the case, thereby allowing the user to choose the optimal orientation for accessing the controls or viewing a screen on a portable device mounted within the attached case. The angle formed between the case and the belt clip can be varied so that the user can optimize the viewing angle of the attached portable electronic device.

A reflex-type screen includes a base which has saw-tooth appearance, and an optical absorption layer on one edge of each saw-tooth of the base. The base consists of white resin and includes a plurality of projector side inclined planes and non-projector side inclined planes, which are alternately provided to form the saw-tooth appearance. The projector side inclined planes are oriented so that the image light from the projector may be incident on them, while the non-projector side inclined planes are oriented so that the image light from the projector may not be incident on them. The optical absorption layer is formed on each of the non-projector side inclined planes of the base to absorb the light. The projector side inclined plane reflects the image light just in front of the observer of the reflex-type screen from the projector.

The subject invention provides a display element which achieves reduction in driving voltage. The display element according to the present invention includes substrates 1 and 2, at least one of which is transparent, and a medium layer 3 held between the substrates 1 and 2, the display element further including on the substrate 1 electrodes 4 and 5 for generating an electric field in a direction substantially parallel to the substrates so as to apply the electric field to the medium layer3 to cause optical modulation of the medium; and an alignment film 6 which is provided on the surface of the substrate 2. With this arrangement, the voltage level is not decreased because of the alignment film 6, and the driving voltage of the display element does not need to be increased, thereby ensuring reduction of driving voltage.

The invention relates to a device for the virtual production of an image, with a housing, an image projection device, which produces an image to be displayed. The housing has an observation opening in a wall of the housing with a fresnel lens arranged therein. Imaging optics arranged in the housing for depicting the object onto the fresnel lens. In order to ensure a large range of applications for this device, provision is made that the imaging optics have a concave mirror arranged in the path of light rays between the image projection device and the fresnel lens. The concave mirror lies opposite the fresnel lens and a ray divider is provided therebetween. To increase the illusion effect, a partially translucent mirror (spy mirror) is additionally arranged on the observation side of the fresnel lens.

The present invention relates generally to an illumination device used in dermoscopy. More particularly, the invention comprises an improved apparatus for enhanced imaging and illumination of the skin for medical examination and treatment. An array of LEDs encircle a magnifying lens assembly. One set of surrounding LEDs provides cross-polarized white light to aid in canceling the reflected light from the skin and creating less glare. Another set of surrounding LEDs provides non-polarized white light for traditional immersion fluid dermoscopy or for non-polarized viewing of the skin. A third set of surrounding LEDs provides polarized colored light, wherein the wavelength color is selected at a color wavelength that maximizes the viewing of skin pigment regions which is important for early detection of skin cancers and other skin diseases. In an embodiment of the invention the colored LEDs comprise orange light at a wavelength of 588 nm. The present invention also discloses that the range of colored LEDs in the orange portion of the visible spectrum, namely at 581 nm to 600 nm wavelengths.

A liquid crystal display apparatus of the present invention includes: a liquid crystal cell including a pair of substrates provided with a color filter on one substrate, and a liquid crystal layer as a display medium provided between the substrates; and an optical compensation element including at least an optical compensation layer. The optical compensation element is arranged on the same side as the color filter with respect to the liquid crystal layer. The substrate provided with the color filter preferably has a haze value of 10% or less. Such a liquid crystal display apparatus allows excellent viewing angle compensation, exhibits exceptional contrast in an oblique direction, and can be reduced in thickness.

The invention discloses a holographic three-dimensional display method and a holographic three-dimensional display device based on a spatial light modulator; the display device is composed of a laser light source, a polarization modulation component, a beam splitter prism, a spatial light modulator, a computer, a lens, and a pixel-type nano grating based directional diffraction screen; and the display method comprises the following steps: obtaining a multi-view two-dimensional image of a target object and undergoing preprocessing conversion process to generate a group of image arrays used for phase type hologram calculation; calculating corresponding phase type holograms with an iterative Fourier transform algorithm, loading the holograms to the spatial light modulator, and irradiating the holograms with the laser light source to obtain holographic reproductive images; and designing and manufacturing the pixel-type nano grating based directional diffraction screen, and directionally diffracting corresponding reproductive image pixels to fixed positions to form different viewpoints. The method and the device disclosed by the invention, by combing with fast refreshing and loading of the spatial light modulator for the holograms, realize multi-view full-parallax dynamic holographic three-dimensional reproduction of the target object, and provide a feasible scheme for application of a naked-eye three-dimensional display technology.