Abstract: In a color filter substrate and a method for manufacturing the color filter substrate, the color filter substrate includes a base substrate, a first blocking pattern, a second blocking pattern and color filters. The base substrate includes a plurality of pixel areas. The first blocking pattern extends along a direction of the base substrate. The second blocking pattern crosses the first blocking pattern and includes a passage portion through which the base substrate is exposed to connect the pixel areas adjacent to each other along the direction. Color filters are formed in the pixel areas. Accordingly, the uniformity of the color filters and the reliability of the color filter's quality and manufacturing process may be enhanced so that display quality may be enhanced.

Abstract: A color wheel includes a fixing base, a ring filter, a washer, and a fixing ring. The fixing base has a protrusion portion and a supporting portion. The ring filter is fit on the protrusion portion. An inner margin of the ring filter leans on the supporting portion. The washer is connected to the protrusion portion. The ring filter is disposed between the washer and the supporting portion. The washer and the supporting portion clip the inner margin of the ring filter. The fixing ring has an annular supporting portion, a side wall surrounding the annular supporting portion, and fixing blocks connected to the side wall and dotted on an outer margin of the ring filter. The outer margin of the ring filter leans on the annular supporting portion. The fixing blocks, the side wall, and the annular supporting portion clip the outer margin of the ring filter.

Abstract: The disclosed embodiments relate to a system and method for compensating for spoke light in a video unit (10). More specifically, there is provided a method comprising measuring a first light level during a non-spoke time of a color wheel (14) to generate a non-spoke light level; and setting a spoke light compensation value based on the measured non-spoke light level. There is also provided a video unit (10) comprising a light source (12) configured to generate a first light level during a non-spoke time of a color wheel (14), a photodiode assembly (26) configured to measure the first light level to generate a non-spoke light level, and a processor (20) configured to set a spoke light compensation value based on the non-spoke light level.

Abstract: A color wheel includes a motor, a filter and a dark slide. The motor has an adhering section and the filter is affixed to the motor by the adhering section. The filter has a first surface facing the motor and a second surface opposite to the first surface. The dark slide is affixed to the filter on the second surface. The dark slide matches the location and shape of the adhering section to block light from projecting onto the adhering section. The thermal expansion coefficients of the dark slide and the filter are substantially identical to avoid damage from thermal stress caused by heating and cooling. An assembling tool and an assembling method are also provided in the embodiments.

Abstract: A method for producing from a plate-shaped substrate circular sections for use for instance in a color wheel encompasses inter alia such steps as positioning predefined edge break lines in such fashion that the circular sections to be separated at a subsequent point are arranged in columns, with the circular sections within a column being so positioned relative to one another that in each case at least certain points of the inner annular edge are in contact with the outer annular edge of another circular section, thus forming part of a common predefined edge break line, while the orientation of the curvature of the circular sections of neighboring columns is reversed in alternating fashion. In a subsequent step the circular sections are separated along the predefined edge break lines.

Abstract: A color wheel includes a plurality of color filter segments disposed so as to form a disk configuration, and a support member to fixedly set the plurality of color filter segments in place. Each of the color filter segments has a circular outer circumference, an inner circumference measuring shorter than the outer circumference, and two sides each connecting between the outer circumference and the inner circumference. In the color wheel described above, a chamfer is provided at the innermost portion of at least one of the two sides. The chamfer provides a clearance between opposing sides of any two adjacent color filter segments, so as to house burrs that are often formed at the sides, and therefore the opposing sides are fitted closely to each other even when burrs are formed at the sides. Consequently, spokes generated between two adjacent color filter segments can be minimized.

Abstract: Apparatus and methods for wavelength-dependent detection are provided. A detector includes a hybrid filter having unpatterned and patterned filter layers and at least one light-detecting sensor that detects light in first and second wavelength bands from the patterned filter layer of the hybrid filter. The unpatterned filter layer passes light in two nonoverlapping wavelength bands relative to light in wavelength bands between or among the nonoverlapping wavelength bands. The patterned filter layer includes first and second regions configured respectively to pass light in the first and second wavelength bands of the nonoverlapping wavelength bands passed by the unpatterned filter layer.

Abstract: An electronic display containing a light source and a color filter set, the color filter set comprising: a green color filter having a green filter layer comprising a first pigment having its maximum absorption at a wavelength from 600 to 700 nm wherein at least 90 volume percent of the first pigment particles have a particle size less than 300 nm, and a second pigment having its maximum absorption at a wavelength from 400 to 500 nm wherein at least 90 volume percent of the second pigment particles have a particle size less than 300 nm, and wherein the green filter layer has a transmittance of 60% or more at a wavelength of 520 nm and of no more than 10% at a wavelength of 480 nm and of no more than 10% at a wavelength of 590 nm; a blue color filter having a blue filter layer; a red color filter having a red filter layer; and wherein the color gamut defined by the electronic display has a % NTSCx,y ratio greater than 88%.

Abstract: A filter wheel capable of executing continuous operation accurately is implemented. The filter wheel comprises a first pulley fixed to a rotation axle of a motor, a filter set table (a second pulley) on which a plurality of filters circularly arranged at equal intervals between a center axis and an outer periphery thereof are mounted, and a belt engaged with respective outer peripheries of the first pulley, and the filter set table, for conveying rotation of the motor to the filter set table through the intermediary of the first pulley, wherein upon an increase in diameter of the filter set table, due to a change in size of the filter, a third pulley is formed inside a space formed when the plurality of the filters are disposed in a circular fashion on the filter set table so as to be integral with the filter set table, the belt being engaged with the respective outer peripheries of the first pulley, and the third pulley.

Abstract: A color filter structure disposed in a displaying panel of a display device is provided. The color filter structure includes several filtering layers with at least four colors. The four colors are red, blue, a first color and a second color. The first color is between green and cyan. The second color is between green and yellow.

Abstract: A color filter formation method for transferring a color filter layer provided on a transfer film to a transferred substrate comprises arranging on said transferred substrate a plurality of wirings side by side to extend in a predetermined direction; covering the wirings with a protective insulating layer, wherein the protective insulating layer is formed as a rib protruding from said substrate; affixing said color filter layer on said transfer film onto said transferred substrate through pressure applied by a pressing mechanism; and moving the pressing mechanism in a direction in which said protective insulating layer extends, thereby transferring said color filter layer onto said transferred substrate.

Abstract: A method for registering a color filter array to a back illuminated imager is disclosed, comprising the steps of providing at least one color filter array comprising filter elements of at least a first color and a second color; providing at least one back illuminated imager having a front side and a back side and comprising a plurality of pixels proximal to the front side, a first portion of the plurality of pixels being associated with the first color, and a second portion of the plurality of pixels being associated with the second color; illuminating the at least one color filter array and the back side of the back illuminated imager with monochromatic light having a wavelength corresponding to the first color; rotating and translating the at least one color filter array relative to the back illuminated imager; measuring a first response of at least one pixel associated with the second color; and repeating the rotating, translating, and measurement steps until the response is a minimum.

Abstract: A color wheel has one or a plurality of color filter segments made from a first material, typically glass, having a coefficient of thermal expansion that is substantially different from a carrier, which is made from a second material, typically aluminum. An intermediate washer or coating is disposed in between the segment(s) and the carrier, and has a coefficient of thermal expansion either equal to the segment(s) or in between that of the segment(s) and the carrier. The segment(s) is/are adhered to the washer or coating via a rigid or strong adhesive capable to withstand the strong centrifugal forces associated with rotating the color wheel and the filter segments at high speed.

Abstract: A method of manufacturing a color wheel with filter sectors. A resist film formed on a disk-like substrate of the color wheel is shaped into a mask pattern by photo processing, a metal mask which has openings configured similar to the filter sectors but having a slightly larger area than those is set on the substrate, and optical interference filters of a dielectric multi-layer film are formed by an evaporation method or a sputtering method, whereby the optical interference filters are formed so as to cover very limited portions of the mask pattern so that at lift-off process, resist remover can penetrate into the mask pattern from most portions of the mask pattern thus enabling the mask pattern to be removed easily and quickly.

Abstract: A color filter of the present invention includes a large number of colored layers of a plurality of colors regularly arranged together. The color filter is such that xWH?0.05?xB?xWH+0.05 and yWH?0.05?yB?yWH+0.05 or xWH?0.10?xB?xWH and yWH?0.10?yB?yWH is satisfied, where (xWH, yWH) is the chromaticity in the CIE 1931 chromaticity diagram when the filter alone is irradiated with light to produce a white display, and (xB, yB) is the chromaticity in the CIE 1931 chromaticity diagram when the filter is irradiated with the same light while being interposed between a pair of polarization plates arranged in a crossed Nicols state each having a degree of polarization of 99.98% or more.

Abstract: An light emitting apparatus which illuminates an illumination area has a first light source which emits a first light, a second light source which emits a second light, a wheel which is provided with a transmission filter area which transmits the first light, and a reflection area which reflects the second light, a wheel driving unit which controls a rotation of the wheel, and drives the wheel, a light emitting optical unit which leads the first light which transmits the transmission filter area, or the second light which is reflected by the reflection area to the illumination area, in which the light which is led to the illumination area by the light emitting optical unit is at least two colors of light which are successively changed over in the time series.

Abstract: A projection display may use a color wheel having radially displaced regions of different colors. As a result, at any instance of time on a spatial light modulator in a projection display, three vertically displaced segments may be utilized, each of which is exposed to a different color at any instant of time. Over time, each of the vertically displaced segments may be exposed successively to each of the three primary colors. At any instance of time, the spatial light modulator has an upper region exposed to one color, an intermediate region exposed to another color, and a lower region exposed to still another color. As a result, relatively little light is lost, which may enable brighter reduced-panel display systems using lower power light sources.

Abstract: A blue colored composition for a color filter contains a pigment carrier comprising a transparent resin, a precursor thereof or a mixture thereof, a blue pigment having a specific surface area of 90 to 140 m2/g, and a violet pigment having a specific surface area in a range of 100 to 150 m2/g, but having a greater specific surface area than that of the blue pigment used. A color filter includes a filter segment formed from the blue colored composition.

Abstract: Phototherapy device in which, within a housing, there is a light source, and in which light with given wavelengths emerges from a light exit opening of the housing, at least two filters being located between the light source and the light exit opening, each of which each absorbs light of different wavelength ranges, the filter on a light incidence side absorbing light with shorter wavelengths than the filter on the light exit side.

Abstract: A color wheel for use in projector systems comprises a disc shaped hub, rotatable around a central axis and color filter segments arranged radially to said central axis and affixed to said hub. This color ring is arranged concentrically with respect to said axis and said segments' contour comprising an outer arc, an inner arc and two radial parts. Each of the radial parts comprises a recess arranged such that during assembly of said segments pairs of neighboring recesses form a hole which again engages in a corresponding peg on the hub in a form fitting manner.

Abstract: A color wheel including a first sheet, a second sheet, a ring filter and a motor is provided. The second sheet is disposed opposite to the first sheet, and has positioning pins. The ring filter is disposed between the first sheet and the second sheet, and has a plurality of positioning holes. The positioning pins are disposed through the positioning holes and connected to the first sheet. The motor includes a turntable and an axis connected to the turntable, and a positioning portion is disposed on the top of the axis. The positioning portion includes at least two locking hooks, and a notch is disposed between the locking hooks. The notch is suitable for accommodating the locking hooks with deformation. Moreover, the first sheet, the second sheet and the ring filter are disposed through the axis and fixed on the turntable. The reliability of the color wheel is better.

Abstract: A color filter substrate includes a transparent substrate, a first and second reflective layers, a spacer layer, and an interference layer. The spacer layer is interposed between the two reflective layers and includes a plurality of first, second and third regions that are distinguished from one another according to their respective thicknesses, where the first, second and third regions overlap red, green and blue pixel portions, respectively. An interference layer is formed on the second reflective layer at positions overlapping the red pixel portions.

Abstract: In a color wheel comprising a plurality of color filter segments arranged so as to form a disk and a support member fixed to the color filter segments, the color filter segments are each outlined only by a circular arc and two straight lines passing through the center of the disk. Consequently, each of the color filter segments is prepared by cutting the material only to the circular arc and the two straight lines, thereby simplifying the production process. And, the support member can be duly and surely positioned such that the center of the support member is set to coincide with the intersecting point of the two straight lines. Thus, the positional accuracy, the component cost reduction, and the production cost reduction can be achieved at the same time.

Abstract: A method for fabricating a monolithic color wheel. The method includes (a) preparing a square transparent substrate; (b) forming a plurality of color filters on the square transparent substrate; and (c) cutting the square transparent substrate and the color filters together along a circular path, to form a color filter disk. Through these steps, a color filter disk of color wheel can be produced with better dynamic equilibrium quality, and will run more quietly and smoothly.

Abstract: A color filter of the present invention includes a large number of colored layers of a plurality of colors regularly arranged together. The color filter is such that xWH?0.05?xB?xWH+0.05 and yWH?0.05?yB?yWH+0.05 or xWH?0.10?xB?xWH and yWH?0.10?yB?yWH is satisfied, where (xWH, yWH) is the chromaticity in the CIE 1931 chromaticity diagram when the filter alone is irradiated with light to produce a white display, and (xB, yB) is the chromaticity in the CIE 1931 chromaticity diagram when the filter is irradiated with the same light while being interposed between a pair of polarization plates arranged in a crossed Nicols state each having a degree of polarization of 99.98% or more.

Abstract: A filter device including a red filter unit, a green filter unit, a blue filter unit and at least one of a yellow filter unit, a cyan filter unit and a magenta filter unit is provided. Red light, green light and blue light are produced when white light passes through the red filter unit, the green filter unit and the blue filter unit. In the CIE1931 color space coordinate, a triangle color space is formed through joining the points representing the red, green and blue light. Moreover, yellow light, magenta light and cyan light are produced when white light passes through the yellow filter unit, the magenta filter unit and the cyan filter unit. In the CIE1931 color space coordinate, the minimum distance from the points representing the yellow, magenta and cyan light to the edge of the triangle is not exceeding in 0.03.

Abstract: A filter device including a red filter unit, a green filter unit, a blue filter unit and at least one of a yellow filter unit, a cyan filter unit and a magenta filter unit is provided. Red light, green light and blue light are produced when white light passes through the red filter unit, the green filter unit and the blue filter unit. In the CIE1931 color space coordinate, a triangle color space is formed through joining the points representing the red, green and blue light. Moreover, yellow light, magenta light and cyan light are produced when white light passes through the yellow filter unit, the magenta filter unit and the cyan filter unit. In the CIE1931 color space coordinate, the minimum distance from the points representing the yellow, magenta and cyan light to the edge of the triangle is not exceeding in 0.03.

Abstract: A reflective color wheel is adapted to receive composite source light provided by a light source, and includes a plurality of multi-layer light-reflecting sections for splitting the composite source light into a plurality of colored light beam components. Each of the multi-layer light-reflecting sections includes a plurality of light-filtering layers stacked along an axis. Each of the light-filtering layers of each of the multi-layer light-reflecting sections is capable of reflecting light within a predefined distinct wavelength range, and permits transmission of light outside the predefined distinct wavelength range therethrough. Sequences of the light-filtering layers of an adjacent pair of the multi-layer light-reflecting sections are different from each other.

Abstract: A coating method for a color filter, including the steps of: coating a first photoresist layer on a substrate; forming at least a aligning pattern and a first color film pattern on the first photoresist layer by exposure and development; coating a first dye on the aligning pattern and the first color film pattern; stripping the first photoresist layer; coating a second photoresist layer on the substrate, wherein the aligning pattern and the first color film pattern are formed on the substrate; aligning position by using the aligning pattern of the substrate; forming a second color film pattern on the second photoresist layer by exposure and development; coating a second dye on the second color film pattern; and stripping the second photoresist layer. The invention also discloses an aligning-assembling method for a color wheel, which includes the color filter.

Abstract: A method and a color rendering filter for compensating for deficiency in illumination light from a light source in display systems are provided. The color rendering filter has a color that is determined based upon the spectrum, sensitivity of viewer's eyes over the visible light range, and a pre-determined waveband threshold.

Abstract: A method for balancing a color wheel. The rotational unbalance vector of a driving motor is measured, including its unbalance amount and direction. The unbalance of a color wheel is adjusted to make its unbalance amount to be the same of the driving motor. The color wheel is connected to the driving motor so that the unbalance direction thereof is opposite to each other to reach an expected balance. The color wheel structure includes a set of color filter and a ring, before starting the assembly, adjusting the unbalance vector of the ring and motor shaft first, and then to assemble it and make the unbalance vectors opposite.

Abstract: In one embodiment, a plurality of color filters arranged in an N×N array. The color filters comprise equal numbers of color filters for each of three or more different colors. The color filters are arranged symmetrically in both an X and a Y direction. The center of gravity for each set of like-colored filters is the center of the array.

Abstract: A process for making a unitary color filter disc includes the steps of preparing a disc member having an annular surface, and providing a plurality of differently colored segments on the annular surface. Each of the colored segments is provided by partially masking the annular surface to expose a part of the annular surface and by directly depositing a coloring film on the exposed part of the annular surface.

Abstract: A projection system for both color and monochromatic displays includes a color wheel having filter portions of different colors and a clear portion; and a drive system configured to keep the color wheel moving while keeping a projection light beam shining through the clear portion of the color wheel.

Abstract: There is provided a color wheel which includes: a color filter disk having a side surface; and a rotary member having a circumferential surface and adhesively attached to the center portion of the color filter disk. In the color wheel described above, a portion of an adhesive for fixing the rotary member to the color filter disk sticks out on the side surface of the color filter disk along the circumferential surface of the rotary member, and the portion of the adhesive sticking out, when hardened, functions as a barrier to prevent uncured portions, if any, of the adhesive present between the two components from getting scattered out in the radial direction on the side surface of the color filter disk when the color wheel is rotated at a high speed during the inspection process, thus improving the production yield rate.

Abstract: A color wheel assembly includes a carrier, a color filter assembly mounted coaxially on the carrier and formed by a plurality of annularly arranged filter segments, and a connecting unit including a plurality of annularly arranged limiting pieces connected respectively to the filter segments, and a limiting groove for receiving the limiting pieces. Each limiting piece has opposite first and second radial end faces, an inner face interconnecting the radial end faces, an outer face interconnecting the radial end faces and extending outwardly of the inner face, and a passage extending between the inner and outer faces and extending through the radial end faces. A press cover is connected to the carrier to press the filter segments against the carrier.

Abstract: A color wheel with dovetailed balancing groove, includes a motor, a metal ring and a set of color filter set. At a rotatable portion of the color wheel, such as the peripheral portion between the metal ring and the housing of the motor, or on the peripheral surface of the metal ring, a balancing groove with narrow opening and wider inside is formed thereon. Using the feature of a narrow opening and wider inside, glue is added into the opening and dries to become solid balancing material. The color wheel is less prone to deviate from the metal ring, even though a relative larger centrifugal force is induced and acted thereon while the color is running at higher speed and higher temperature.

Abstract: A method for generating images includes shining a beam of light through a filter wheel to produce filtered light. The filter wheel includes red, green, and blue color segments and a fourth color segment that is not blue, green, red, or clear. The method also includes modulating the filtered light to form an image.

Abstract: The invention relates to a saturable light absorber adapted to receive different focused spectral components, wherein the structure of said saturable light absorber comprises microcavities integrated into a substrate and each associated with a respective one of said spectral components, each microcavity comprising a saturable absorber layer delimited by a top reflector and a bottom reflector and being disposed and having dimensions such that it receives only the focused spectral component associated with it.

Abstract: A color wheel is attached to a hub of a motor before the hub is built in the motor. In this process, portions of the hub which do not impact the rotation accuracy of the motor are held by appropriate clamping means and attaching means so that excessive stress and heat are not applied to bearings of the motor. Then, the hub with the color wheel attached thereto is assembled to the rest of components of the motor.

Abstract: An image display apparatus is capable of recycling the “OFF” state light to increase the image brightness and contrast. The image display apparatus includes a light source, a spatial light modulator, a total internal reflection (TIR) prism, a projection lens set, and a reflector. The spatial light modulator selectively modulates a light beam from the light source to a first path to form a first path light beam or to a second path to form a second path light beam. The TIR prism disposed between the light source and the spatial light modulator is configured to allow the light beam to travel therethrough in a first direction and to be incident on the spatial light modulator. The projection lens set disposed between the modulator and a screen is configured to project the first path light beam to form an image on a screen. The reflector is configured to reflect the second path light beam to form a reflected light beam that is incident on the TIR prism in a second direction as a recaptured light beam.

Abstract: A color filter array having a green filter layer on a substrate wherein the green filter layer comprises a copper phthalocyanine dye having its absorption maximum at a wavelength of 600 to 700 nm, and a pyridone azo dye having its absorption maximum at a wavelength of 400 to 500 nm; and has a transmittance at a wavelength of 450 nm of 5% or less and that at 535 nm of 62% or more is provided; and the color filter array shows excellent spectroscopic characteristics with respect to green light and has a green filter layer excellent in light fastness.

Abstract: A color wheel includes a carrier having a carrier surface, a color filter plate unit mounted coaxially on the carrier surface and having at least one first through hole, a press cover for covering the color filter plate unit, and a fixing unit. The press cover has at least one second through hole corresponding in position to the first through hole. The fixing unit extends through the first and second through holes, and is fixed to the carrier so as to position the color filter plate unit on the carrier.

Abstract: A color wheel includes a motor, a covering element and a color filter. In this case, the motor has a housing and a motor body. The motor body has a central axis and the housing is set at one side of the motor body. The housing has a surface, which is opposite to the motor body. The housing and the motor body rotate around the central axis. The covering element covers one part of the housing. The color filter is set around the covering element.

Abstract: In a manufacturing method of a color filter for display devices having a plurality of pixels on a substrate, each pixel comprises a reflective layer and a color layer, the method of manufacture comprises a step of forming partitions which separate each pixel area from the other pixel areas to comprise the pixel in each pixel area; a step of forming the reflective layer by discharging a first liquid material into each of the pixel areas by means of a droplet discharge method; and a step of forming the color layer within each of the pixel areas. By this method, color filters can be manufactured without requiring photolithography or other complicated processes, in a short time, using little energy, and at low cost.

Abstract: An optical substrate is manufactured such that a bright color display can be achieved. The optical substrate can be embodied in a display device. As for the optical substrate, a light transmitting layer is formed by bonding a first master having a plurality of color protrusions and a second master having a plurality of curved surface parts with a light transmitting layer precursor disposed therebetween so that the resulting light transmitting layer has a plurality of color recesses transferred from the shape of the color protrusions and a plurality of lenses transferred from the shape of the curved surface parts. The master is separated from the light transmitting layer. The color recesses in the light transmitting layer are filled with pigment to form a color pattern layer. The second master is separated from the light transmitting layer.

Abstract: Optical engines using a reduced number of components offer advantages over more complex optical systems. Three panel optical engines have offered the advantage of relatively high throughput but at the cost of complexity and increased components on the bill of materials. Conventional two-panel engines have required the use of complex retarder structures to achieve the dual polarizations state for the three primary colors. The present invention achieves this goal while using simpler optical retarders.

Abstract: A color projection type display apparatus having a light source, a color wheel driven to rotate and having a plurality of types of color filters, different in characteristics from one another, disposed on the same surface thereof to transmit a particular component of light from the light source and to reflect the remaining components, a reflector for reflecting a component of light impinging on the color wheel and reflected by one type of the color filters to again direct the component back to another type of color filters, an image display device having a plurality of areas each irradiated with particular component of light transmitted by the color filters, respectively, to display an image, and a projection lens for projecting the image displayed by the image display device onto a screen.

Abstract: A color wheel includes a carrier, a color filter assembly mounted coaxially on the central boss and formed by a plurality of annularly arranged filter segments, a press cover connected to the carrier to press the filter segments against the carrier, and a limiting element. The color filter assembly defines inner and outer peripheries, upper and lower surfaces extending between the inner and outer peripheries, and an engaging element projecting axially from one of the upper and lower surfaces. The limiting element projects axially toward the engaging element from one of the carrier and the press cover to engage the engaging element so as to prevent the color filter assembly from displacing radially from an axis of the carrier due to a centrifugal force.

Abstract: A color wheel includes lens structures, which are formed on a surface of a substrate opposite to a surface having filter sectors, and which have curved surfaces formed at their abutting ends and positioned along a boundary between adjacent filter sectors. Light impinging on an area of the substrate corresponding to the boundary is deflected due to one of the curved surfaces so as to be surely guided into one of the adjacent filter sectors and to be duly dispersed into a predetermined color, whereby light can be efficiently utilized.