60results about How to "Transmissivity decrease" patented technology

An optical element (22) comprises a material (27) thermally switchable between a first stable state and a second stable state different from the first state and a switching mechanism (28a-28c) for switching one or more selected areas of the material (27) between the first state and the second state thereby to change the transmissivity of one or more selected areas of the optical element (22). The optical element may be placed in an optical path through another component such as, for example, a display (21), reflector or backlight, such that the optical element may be controlled to change the optical properties of the component. The properties that may be changed include, but are not limited to, the display mode of a display (21), viewing angle range, brightness / luminance, and colour. For example, if the element is substantially non-transmissive for one state of the thermally switchable material, the thermally switchable material may be arranged to provide a parallax barrier, in one state. Thus a display (21) may be switched between a directional display mode, for example a 3D-mode or multi-view display mode, and a conventional 2-D display mode by putting the thermally switchable material into its appropriate state—when the thermally switchable material is put into the non-transmissive state the parallax barrier is enabled, and when the thermally switchable is put into another state the parallax barrier is disabled.

A source driver outputs a data signal and a reset (black) signal alternately to a source line. Four-hundred and eighty gate lines are divided into three groups each comprising 160 lines, and connected to gate drivers. A display control section outputs a discriminant signal, a scan start signal and a clock signal to the gate drivers, where the nth gate line is selected with the data signal outputted by the source driver, and where the (n+160)th gate line is selected with the reset signal outputted. Further, n is shifted sequentially. By writing the reset signal during the latter ⅓ of one frame like this, light leakage of pixels that are changed over from white display to black display is eliminated. Also, blurs of edge portions of a motion picture are reduced. Thus, display grade for motion pictures is enhanced with a minimum improvement.

Described herein are power conservation systems and methods that reduce power consumption for an electronics device including a liquid crystal display (LCD). The LCD includes a backlight that offers multiple luminance levels, where each level consumes a different amount of power. The systems and methods alter video information while the backlight remains at a backlight luminance level. The alteration reduces luminance for the video information to produce new video information that can be presented at a lower backlight luminance level. Change to the lower backlight luminance level may then occur without significantly affecting aggregate luminance of the new video information, as perceived by a user. The LCD and electronics device consume less power at the lower luminance level.

On one side of a liquid crystal layer, a first electrode is provided, and, on the other side of the liquid crystal layer, a second electrode, composed of a plurality of individual electrodes, and a third electrode are provided. The second and third electrodes have holes that are increasingly small away from the liquid crystal layer. When the potential at the third electrode is set equal to or lower than the potential at the second electrode, the liquid crystal layer acts as a convex lens; when the potential at the third electrode is set higher than the potential at the second electrode, the liquid crystal layer acts as a concave lens. The range in which the focal length can be varied depends on the diameters of the holes, and giving the holes of the different electrodes varying diameters helps widen the range. Moreover, conductors can be laid to reach the electrodes at the outer edges thereof so as not to directly face the liquid crystal layer. This helps eliminate the influence of the conductors on the electric field distribution in the liquid crystal layer.

A light emitting diode is disclosed which can enhance the scattering of light produced by a light emitting element to improve a brightness not only at an upper surface but also at side surfaces of a resin sealant covering the light emitting element, thereby providing a high brightness level in a wider range of angle. This light emitting diode comprises a substrate 22, a pair of electrodes 23a, 23b provided on the substrate, a light emitting element 24 mounted on the substrate and electrically connected to the electrodes, a sealant 26 provided on the substrate to seal the electrodes 23a, 23b and the light emitting element 24; and a light scattering layer 30 formed on an outermost layer of a light projecting surface 27 of the sealant 26.

An optical filter and a lighting device using the same wherein the suppression of the melatonin secretion by the reception of light in the nighttime is prevented and the color of light is maintained. The optical filter has a mean transmissivity of a light beam in a wavelength range of about 480˜550 nm is about 30% or less. The optical filter is formed by at least molding a transparent resin and a resin composition material containing an orange color series florescent dye material, and, for 100 weight part of the transparent resin, the resin composition material containing about 0.005˜0.2 weight part of the orange color series florescent dye material is molded. This can prevent the suppression of the melatonin secretion in the nighttime. The color of light is maintained desirable. The optical filter may be applied to a lighting apparatus.

A microlithographic projection exposure apparatus comprises a projection objective which images an object onto an image plane and has a lens with a curved surface. In the projection objective there is a liquid or solid medium which directly adjoins the curved surface over a region which is usable for imaging the object. The projection exposure apparatus also has an adjustable manipulator for reducing an image field curvature which is caused by heating of the medium during the projection operation.

A inspecting and measurement method and inspecting and measurement apparatus for semiconductor devices and patterns such as photomasks using an electron beam which can measure the charged potential of a sample with higher precision than in the prior art, and a inspecting and measurement apparatus which can measure charged potential by means of a simple construction. When an S curve is observed in a semiconductor device to be inspectioned and measured, fluctuations of the charged potential of the inspection sample surface are suppressed by optimizing the energy of a primary electron beam used for irradiation. When the surface potential of the semiconductor device is measured, a more precise potential measurement than that of the prior art can be performed which is almost unaffected by the charged potential of an insulation film surface. Further, the surface potential can be measured without installing a special apparatus for wafer surface potential measurement such as an energy filter, so the cost of the apparatus can be reduced.

A see-through organic light emitting display device including a light emitting region having a transparent anode, an organic light emitting layer, and a transparent cathode, and a see-through region having a transparent auxiliary electrode, which is configured to transmit external light. The transparent auxiliary electrode can be made from the same material as the transparent anode and separated from the transparent anode, and the transparent cathode extends into the see-through region so as to be electrically connected with the transparent auxiliary electrode.

There is provided an electrophoretic device which comprises an electrophoretic layer containing dispersion medium and electrophoretic particles dispersed in the dispersion medium, controls the position of the electrophoretic particles according to the electric potential applied to electrodes, and can maintain the electrophoretic particles at a desired position for a long time by using the dispersion medium formed of mixture consisting of a plurality of substances having small mutual solubility.

An optical element (22) comprises a material (27) thermally switchable between a first stable state and a second stable state different from the first state and a switching mechanism (28a-28c) for switching one or more selected areas of the material (27) between the first state and the second state thereby to change the transmissivity of one or more selected areas of the optical element (22). The optical element may be placed in an optical path through another component such as, for example, a display (21), reflector or backlight, such that the optical element may be controlled to change the optical properties of the component. The properties that may be changed include, but are not limited to, the display mode of a display (21), viewing angle range, brightness / luminance, and color.

A touch sensitive device, a display device including the touch sensitive device and a method of driving the same are discussed. The touch sensitive device can include an electroactive layer including an electroactive polymer; and one or more first electrodes and one or more second electrodes are disposed on only one surface of the electroactive layer, in which the first and the second electrodes include a conductive material. The first and the second electrodes of the touch sensitive device can be disposed only on one surface of the electroactive layer, a driving voltage of the touch sensitive device can be reduced and transmissivity can be improved.

A coating and method for overcoating a TBC on a component used in a high-temperature environment, such as the combustor section of an industrial gas turbine. The coating defines the outermost surface of the component and is formed of at least two layers having different compositions. An inner layer of the coating contains alumina in a first silica-containing matrix material that is free of zinc titanate. An outer layer of the coating contains alumina, a glass material, and zinc titanate in a second silica-containing matrix material. The outer layer of the coating has a surface roughness of not greater than three micrometers Ra and forms the outermost surface of the component. The coating reduces the component temperature by reducing the convective and radiant heat transfer thereto.

A source driver outputs a data signal and a reset (black) signal alternately to a source line. Four-hundred and eighty gate lines are divided into three groups each comprising 160 lines, and connected to gate drivers. A display control section outputs a discriminant signal, a scan start signal and a clock signal to the gate drivers, where the nth gate line is selected with the data signal outputted by the source driver, and where the (n+160)th gate line is selected with the reset signal outputted. Further, n is shifted sequentially. By writing the reset signal during the latter ⅓ of one frame like this, light leakage of pixels that are changed over from white display to black display is eliminated. Also, blurs of edge portions of a motion picture are reduced. Thus, display grade for motion pictures is enhanced with a minimum improvement.

The present invention realizes an IPS liquid crystal display device which exhibits small directivity of viewing angle and high brightness. Below a pixel electrode having a comb-teeth-shaped electrode and having a laterally-extending trapezoidal profile, a planar common electrode not shown in the drawing is formed by way of an insulation film. When a video signal is applied to the pixel electrode, an electric field is generated between the pixel electrode and the common electrode via slit portions formed in the pixel electrode thus controlling liquid crystal molecules. The pixel electrodes are arranged in a packed state by alternately reversing the direction of the trapezoidal shape in the longitudinal direction. Since a light blocking film is not present between two pixel electrodes arranged adjacent to each other in the longitudinal direction, the liquid crystal display device can acquire high transmissivity. As a result, a liquid crystal display device having high brightness can be realized.

An image display apparatus (100) comprises: a display device (104) for displaying an image 900 by emission of display light (210) in a first direction; a scattering layer (902) disposed in front of the display device (104), for scattering at least a portion of ambient light (208); a transparent plate-shaped light source (950), arranged parallel to the scattering layer (902) and being optically coupled to the scattering layer (902). The plate-shaped light source (950) may be a passive light source, in which case at least one light source (967) is arranged along an edge of the plate-shaped light source (950). When the display device (104) is ON, the scattering layer (902) and the plate-shaped light source (950) are transparent. When the display device (104) is OFF, the scattering layer (902) is scattering and the plate-shaped light source (950) is ON.

An optical filter and a lighting device using the same wherein the suppression of the melatonin secretion by the reception of light in the nighttime is prevented and the color of light is maintained desirable are provided. The optical filter has a mean transmissivity of a light beam in a wavelength range of about 480˜550 nm is about 30% or less. The optical filter is formed by at least molding a transparent resin and a resin composition material containing an orange color series fluorescent dye material, and, for 100 weight part of the transparent resin, the resin composition material containing about 0.005˜0.2 weight part of the orange color series fluorescent dye material is molded. This can prevent the suppression of the melatonin secretion in the nighttime. The color of light is maintained desirable. The optical filter may be applied to a lighting apparatus.

A terahertz temporal and spatial resolution imaging system is provided. The system includes: a sample placing rack; a detection crystal, located on the exit side of the sample placing rack; a pump light generating device, for generating a pump light to irradiate the test sample; a terahertz light generating device, for generating a terahertz light to irradiate the test sample, irradiate the detection crystal after obtaining information about the test sample, and modulate an index ellipsoid of the detection crystal; a detection light generating device, for generating a detection light to irradiate the detection crystal to detect the index ellipsoid of the detection crystal, thereby indirectly obtaining the information about the test sample; and an imaging apparatus, located in an optical path after the detection light passes through the detection crystal, for collecting terahertz images of the test sample.

A laser beam is generated and transmitted within an enclosed pathway through at least one crystal optic at a power density that progressively degrades transmissivity of the crystal optic with accumulating fluence. The crystal optics are cooled below normal operating temperatures to slow the progressive degradation in the transmissivity of the crystal optics with the accumulating fluence or to accommodate a higher power density without correspondingly increasing the progressive degradation in transmissivity.

A controller driver according to an exemplary embodiment of the present invention includes: a display memory that stores image data to be displayed on a display panel; a touch panel control circuit that detects a touch panel signal from the touch panel; a cursor memory that stores cursor image data; and a composition processing circuit that combines the cursor image data stored in the cursor memory with the image data stored in the display memory based on the touch panel signal, to generate composite image data.

A vehicle vision system displays a vehicle pathway image that includes a reticle for visually identifying the in-path portion of the image. A reticle array is disposed between a video camera chip and a lens, and includes a conical or frustro-conical region of substantially un-attenuated light transmissivity surrounded by a region of perceptibly attenuated light transmissivity, such that in-path portions of the displayed image are substantially unchanged and out-of-path portions of the displayed image are perceptibly attenuated. The reticle array may also include a number of reduced transmissivity lines traversing its conical or frustro-conical region to produce a series of receding stadia lines in the in-path portion of the displayed image, enabling the driver to reliably discern the range of displayed objects.

An image display apparatus including a display device for displaying an image by emission of display light in a first direction; a scattering layer disposed in front of the display device, for scattering at least a portion of ambient light; a transparent plate-shaped light source, arranged parallel to the scattering layer and being optically coupled to the scattering layer. The plate-shaped light source may be a passive light source, in which case at least one light source is arranged along an edge of the plate-shaped light source. When the display device is ON, the scattering layer and the plate-shaped light source are transparent. When the display device is OFF, the scattering layer is scattering and the plate-shaped light source is ON.

A liquid crystal display device (1) includes: an emphasis conversion section (2) performing an emphasis conversion process on image data of a current frame, based on an emphasis conversion parameter corresponding to a combination of image data of the current frame and image data of a frame immediately preceding the current frame; driving sections (3, 5, 6) causing a liquid crystal display panel (4) to display an image corresponding to the image data on which the emphasis conversion process has been performed by the emphasis conversion section (2); a temperature sensor (7) detecting an in-device temperature of the liquid crystal display device (1); an optical sensor (9) detecting a light intensity of incident external light into the liquid crystal display panel (4); and a control section (8) calculating a temperature of the liquid crystal display panel (4), based on the in-device temperature and the light intensity, and changing the emphasis conversion parameter to be used in the emphasis conversion process in accordance with the calculated temperature of the liquid crystal panel (4). Thus, even when the temperature of the liquid crystal display panel (4) is changed by the incident external light, optical response characteristics of the liquid crystal display panel (4) can be appropriately corrected.