33results about How to "Minimize light leakage" patented technology

The present invention relates to an in-plane switching liquid crystal display comprising a negative biaxial retardation film and a positive C-plate, as viewing-angle compensation films. By the use of such viewing-angle compensation films, the contrast characteristics at the front side and inclination angle of the in-plane switching liquid crystal display can be improved and color shift with viewing angle in the dark state can be minimized.

An electronic display device includes a display unit adapted to display an image, and a barrier unit overlapping the display unit, the barrier unit including a liquid crystal layer between first and second substrates, the first and second substrates facing each other, a common electrode between the liquid crystal layer and the first substrate, a transparent insulation layer between the liquid crystal layer and the second substrate, the transparent insulation layer having an inner surface facing the liquid crystal layer and an outer surface facing the second substrate, a plurality of first electrodes along a first direction between the outer surface of the transparent insulation layer and the second substrate, the first electrodes being spaced apart from each other along a second direction, and a plurality of second electrodes along the first direction between the inner surface of the transparent insulation layer and the first substrate.

Display module and mobile terminal having the same are provided. The display module includes a liquid crystal display panel configured to output a color per pixel, a backlight unit configured to uniformly project light to a rear side of liquid crystal display panel, a backlight unit having a light guide plate and a light source, a mold located at a perimeter of the liquid crystal display panel and a perimeter of the backlight unit, and a light cutoff part configured to cut off path of light incident on a front of the liquid crystal display panel from a side of the liquid crystal display panel. Accordingly, light leakage caused by light incident on lateral side of liquid crystal display panel by being reflected by mold or light reflected by lateral side of liquid crystal display panel is minimized to output more clear and vivid images.

A fluorescence illumination system is provided for use with an imaging apparatus that defines a light-tight imaging compartment. The fluorescence illumination system includes a trans-illumination component configured to direct excitation light into a first surface of the specimen wherein diffused light emanates from a second surface thereof for receipt through the view port to acquire fluorescence data of the specimen. Further, the fluorescence illumination system includes an epi-illumination component configured to direct excitation light onto a third surface of the specimen wherein the diffused light exits the third surface thereof for receipt through the view port to acquire fluorescence data of the specimen.

The present invention relates to an in-plane switching liquid crystal display comprising a negative biaxial retardation film and a positive C-plate, as viewing-angle compensation films. By the use of such viewing-angle compensation films, the contrast characteristics at the front side and inclination angle of the in-plane switching liquid crystal display can be improved and color shift with viewing angle in the dark state can be minimized.

A reflective LCD has first and second light blocking metal films that are formed one upon another between a semiconductor substrate and reflective pixel electrodes with an insulating film being laid on and under each of the light blocking metal films, to block part of read light, which has been made incident from a transparent substrate side to liquid crystals through a counter electrode and has penetrated a third interlayer insulating film through openings formed between adjacent ones of the reflective pixel electrodes, from reaching switching elements. One of the first and second light blocking metal films covers the openings formed between adjacent ones of the reflective pixel electrodes. The first and second light blocking metal films in each pixel are electrically connected, through third via holes, to a corresponding switching element, reflective pixel electrode, and storage capacitor.

A liquid crystal display device capable of reducing a time delay in lighting of the liquid crystal display device includes a liquid crystal panel, at least one fluorescent lamps disposed below the liquid crystal panel, formed as a cylindrical shape having a central axis and supplying light to the liquid crystal panel, and at least one auxiliary optical source disposed to face the liquid crystal panel while having the central axis therebetween and supplying light to the fluorescent lamps.

The invention is a compact optical gyroscope based on the Sagnac effect that combines a micro-ring cavity laser comprising a magneto-optical material and a magnetic field to circumvent the lock-in phenomenon at low rates of rotation. The invention also embodies novel processes for breaking lock-in using a transverse Faraday effect.

A liquid crystal display device is provided. The liquid crystal display device includes a liquid crystal display panel; a backlight unit; a cover glass; a frame; and a filling member. The backlight unit is in contact with a bottom surface of the liquid crystal display panel. The cover glass is bonded to a top surface of the liquid crystal display panel. The frame is bonded to the cover glass. The filling member is configured to bond a lateral surface of the frame, a lateral surface of the liquid crystal display panel and a lateral surface of the backlight unit and reduce a leaked light emitted from the backlight unit.

Disclosed is an in-plane switching liquid crystal display. The in-plane switching liquid crystal display uses at least one A-plate and adjusts the optical axis direction and the retardation value of the A-plate, thereby improving the contrast characteristic at a front and at a predetermined inclination angle of the in-plane switching liquid crystal display while minimizing a color shift according to viewing angles in the black state.

Display module and mobile terminal having the same are provided. The display module includes a liquid crystal display panel configured to output a color per pixel, a backlight unit configured to uniformly project light to a rear side of liquid crystal display panel, a backlight unit having a light guide plate and a light source, a mold located at a perimeter of the liquid crystal display panel and a perimeter of the backlight unit, and a light cutoff part configured to cut off path of light incident on a front of the liquid crystal display panel from a side of the liquid crystal display panel. Accordingly, light leakage caused by light incident on lateral side of liquid crystal display panel by being reflected by mold or light reflected by lateral side of liquid crystal display panel is minimized to output more clear and vivid images.

Phototherapy goggles for infants undergoing phototherapy. The goggles include a eye covering to cover the eyes of the infant and a headgear assembly to prevent the eye covering from becoming misaligned. The eye covering is formed to correspond to the anatomical contours of the infant's face and the headgear includes an elastomeric layer with a high coefficient of friction to further prevent the phototherapy goggles from becoming misaligned.

A display device including a display module, a light source module, a turning optical film, a first compensation film and a second compensation film is provided. The display module includes a first substrate, a second substrate and a display medium. The light source module generates directional light. The display module is disposed above the light source module. The second substrate is disposed opposite to the first substrate. The display medium is disposed between the first substrate and the second substrate and is optically isotropic. The turning optical film is disposed on the second substrate of the display module. The directional light enters the turning optical film and then exits the turning optical film to form an output light. The first compensation film is disposed on the first outer surface of the first substrate. The second compensation film is disposed between the second substrate and the turning optical film.

A fluorescence illumination system is provided for use with an imaging apparatus that defines a light-tight imaging compartment. The fluorescence illumination system includes a trans-illumination component configured to direct excitation light into a first surface of the specimen wherein diffused light emanates from a second surface thereof for receipt through the view port to acquire fluorescence data of the specimen. Further, the fluorescence illumination system includes an epi-illumination component configured to direct excitation light onto a third surface of the specimen wherein the diffused light exits the third surface thereof for receipt through the view port to acquire fluorescence data of the specimen.

Disclosed is a vertically aligned liquid crystal display (VA-LCD) having wider viewing angle and having high contrast at the right angle and tilt angles. According to one embodiment of the present invention, the VA-LCD having liquid crystal cells in which liquid crystals with a negative dielectric anisotropy are filled and which is provided between a first polarizer and a second polarizer, whose absorption axises are perpendicular to each other, includes a sheet of +A plate and a sheet of −C plate, disposed between the first polarizer and the liquid crystal cells; and a sheet of +A plate disposed between the second polarizer and the liquid crystal cells, wherein an optical axis of the +A plate near the first polarizer is perpendicular to the absorption axis of the first polarizer, and an optical axis of the +A plate near the second polarizer is perpendicular to the absorption axis of the second polarizer. According to another embodiment of the present invention, a VA-LCD having liquid crystal cells in which liquid crystals with a negative dielectric anisotropy are filled and which are disposed between a first polarizer and a second polarizer, whose absorption axises are perpendicular to each other, includes a bi-axial retardation film disposed between the first polarizer and the liquid crystal cells, and a sheet of +A plate disposed between the second polarizer and the liquid crystal cells, wherein an optical axis of the bi-axial retardation film near the first polarizer is perpendicular to the absorption axis of the first polarizer, and an optical axis of the +A plate is parallel with the absorption axis of the second polarizer. Accordingly, the configuration of FIG. 11 has not an advantage more than the configurations of FIG. 2 and 3 in aspects of manufacturing process and cost. The VA-LCD according to the present invention has an advantage that viewing angle compensation effect is enhanced due to the arrangement of the viewing angle compensation films, thereby implementing the wider viewing angle characteristic.

A display apparatus includes a display panel including an upper substrate and a lower substrate coupled to a rear surface of the upper substrate; a guide frame supporting the display panel, and a coupling member coupling the guide frame to the display panel. The coupling includes a main adhesive adhering the guide frame to the display panel, and a sub adhesive adhered to the guide frame adjacent to the main adhesive. Accordingly, the display panel can more readily absorb an impact applied thereto, thus enhancing the stability of the display panel.

The lighting device is provided with lamp housing, LED module, terminal cover, and light penetrating hood. Lamp housing comprises base, heat sink on the base, thermal dissipation channel between neighboring two heat sinks, and the base inner container. LED module comprises base for fixing, lamp cover attached to the side of the base, multiple LED lamp being inside the lamp cover, and connecting part connected to the corresponding container on the base. Each terminal cover seals the forward and reward part of the lamp housing, and the light penetrating hood is connected below the lamp housing, and the container for LED module is surrounded with the lamp housing, the terminal cover, and the light penetrating hood. This utility model can simplify the manufacturing process and cut down the cost and time to research and develop.

An optical engine apparatus to magnify and project an image beam formed by a display device on a screen includes a light source to emit light, an optical path transformation unit provided on an optical path between the light source and the display device to transform a path of the light from the light source toward the display device, and an accommodating unit in which the optical path transformation unit is accommodated, to form the path of the light in the optical path transformation unit. With this configuration, the optical engine apparatus minimizes a loss of the light generated from the light source and projected to the display device, and improves a brightness of a picture corresponding to the image beam. The optical path transformation unit is accommodated in an accommodation casing to minimize leaking of the light thereby maintaining a good quality of the picture and protecting the optical engine apparatus from contamination due to dust or foreign substances.

A liquid crystal display device capable of reducing a time delay in lighting of the liquid crystal display device includes a liquid crystal panel, at least one fluorescent lamps disposed below the liquid crystal panel, formed as a cylindrical shape having a central axis and supplying light to the liquid crystal panel, and at least one auxiliary optical source disposed to face the liquid crystal panel while having the central axis therebetween and supplying light to the fluorescent lamps.

A vertically aligned liquid crystal display (VA-LCD) according to one embodiment has liquid crystal cells in which liquid crystals with a negative dielectric anisotropy are filled and which is provided between a first polarizer and a second polarizer, whose absorption axes are perpendicular to each other. The VA-LCD includes a sheet of +A plate and a sheet of −C plate, disposed between the first polarizer and the liquid crystal cells, and a sheet of +A plate disposed between the second polarizer and the liquid crystal cells, where an optical axis of the +A plate near the first polarizer is perpendicular to the absorption axis of the first polarizer, and an optical axis of the +A plate near the second polarizer is parallel with the absorption axis of the second polarizer, and where a thickness retardation value of the −C plate is in the range of −500 nm to −30 nm for a wavelength of 550 nm.

A display device can include a substrate on which reference lines extending in a first direction are disposed; first sub pixels which include a first circuit area disposed at one side of the reference lines and a first emission area disposed at another side of the reference lines; second sub pixels which include a second emission area disposed at one side of the reference lines and a second circuit area disposed at another side of the reference lines; first data lines which extend in the first direction and are disposed to be spaced apart from the reference lines; and second data lines which extend in the first direction and are disposed to be spaced apart from the reference lines. Accordingly, the reference line and the data line are disposed at both sides of the circuit area so that the reference line and the data line do not overlap and the ripple phenomenon and the dim phenomenon can be improved.

A thin film transistor array panel according to the present invention includes a first wire, a second wire, and a pixel electrode. The first wire is formed on an insulating substrate and is used as a gate line or a storage capacitor electrode. The second wire overlaps the first wire via a gate insulating layer and is used as a storage capacitor conductor or a drain electrode. The pixel electrode is formed on a passivation layer covering the second wire and is connected to the second wire through a contact hole of a second insulating layer. In order to secure aperture ratio of the pixel and to block light leakage, distances between the boundaries of the contact hole at the place where alignment treatment or rubbing ends and the boundaries of the first wire or the second wire adjacent thereto and located outside the boundaries of the contact hole are designed to be wider than those between the boundaries of the contact hole at the other places and the boundaries of the first wire or the second wire.

A device that enlarges text and images to enable a low vision person to see the text and images includes a hollow structure including a top housing and a bottom housing that are connected to one another. A camera aperture is formed in the bottom housing and a transparent light guide lens is disposed in closing relation to the camera aperture so that all light entering the camera aperture must first pass through the light guide lens. A cavity formed in the light guide lens is bounded by walls that are positioned at a critical angle. Light-emitting diodes are positioned at critical locations about the periphery of the light guide lens to illuminate the object being viewed.

There is provided a method of manufacturing a thin polarizing plate including: forming a film laminate by attaching a non-stretched polyvinyl alcohol (PVA)-based film to a non-stretched base film, using attractive force therebetween or using an adhesive; stretching the film laminate; attaching a first protective film to the PVA-based film of the stretched film laminate; and separating the PVA-based film having the first protective film attached thereto from the base film.

A display device may include a first substrate having a display area and a non-display area, a second substrate opposite the first substrate, a light shielding sealant on at least one side surface of the first and second substrates, and a first polarizer on at least one surface of the first and second substrates. The first polarizer may intersect an imaginary surface extending from the at least one side surface.