962results about How to "Improve color gamut" patented technology

A digital display system consists of an image modulator and multiple light modulators. An image processing system processes an incoming data stream, scans processed data to an image modulator and controls for the light modulators. Other user inputs and sensors are used to affect the processing and controls. The timing for scanning the processed data into the image modulators is controlled along with the intensity and wavelength of the light modulators. The display system may implement a spatial and temporal image processing, digital shutter controls, rolling shutter controls, sequential color output, adaptive dynamic sensor feedback, frame rate matching, motion compensated field sequencing and a variety of other techniques to produce a high quality display output. The resulting display has improved image consistency, enhanced color gamut, higher dynamic range and is better able to portray high motion content.

A scanning endoscope, amenable to both rigid and flexible forms, scans a beam of light across a field-of-view, collects light scattered from the scanned beam, detects the scattered light, and produces an image. The endoscope may comprise one or more bodies housing a controller, light sources, and detectors; and a separable tip housing the scanning mechanism. The light sources may include laser emitters that combine their outputs into a polychromatic beam. Light may be emitted in ultraviolet or infrared wavelengths to produce a hyperspectral image. The detectors may be housed distally or at a proximal location with gathered light being transmitted thereto via optical fibers. A plurality of scanning elements may be combined to produce a stereoscopic image or other imaging modalities. The endoscope may include a lubricant delivery system to ease passage through body cavities and reduce trauma to the patient. The imaging components are especially compact, being comprised in some embodiments of a MEMS scanner and optical fibers, lending themselves to interstitial placement between other tip features such as working channels, irrigation ports, etc.

Image processing enhances display quality by controlling both the image modulator and the light sources to produce the best possible visual images. The image processing system utilizes a combination of user inputs, system configuration, design information, sensor feedback, pixel modulation information, and lighting control information to characterize the display environment on a per pixel basis. This per pixel characterization information is combined with one or more frames of the incoming real time display data. The image processing system processes each incoming pixel and produces a modified corresponding output pixel. Each pixel of each frame is processed accordingly. In addition to producing modified output pixels, the image processing system produces control information for the light sources. The light source control information can control individual lamps, tubes or LEDs, or can control a block or subset of the light sources. The resulting display has improved image consistency, enhanced color gamut, higher dynamic range and is better able to portray high motion content.

A 2D / 3D switchable display system having a selector for selecting a two-dimensional (2D) or a three-dimensional (3D) image processing path; a first processor for processing image data through the two-dimensional image processing path; a second processor, independent of the first processor, for processing image data through the three dimensional image processing path; a first set of at least three emitters having corresponding first wavelengths; a second set of at least three emitters having corresponding second wavelengths; and a controller that during a 2D operation activates both first and second sets of emitters to present a single image, while during a 3D operation activates the first set of emitters to present a first image having one half of stereo image information and activates the second set of emitters to present a second image having a second half of stereo image information.

To improve color reproduction areas in a display device having light-emitting elements. A display region has a plurality of picture elements. Each picture element includes: first and second pixels each including a light-emitting element which has a chromaticity whose x-coordinate in a CIE-XY chromaticity diagram is 0.50 or more; third and fourth pixels each including a light-emitting element which has a chromaticity whose y-coordinate in the diagram is 0.55 or more; and fifth and sixth pixels each including a light-emitting element which has a chromaticity whose x-coordinate and y-coordinate in the diagram are 0.20 or less and 0.25 or less, respectively. The light-emitting elements in the first and second pixels have different emission spectrums from each other; the light-emitting elements in the third and fourth pixels have different emission spectrums from each other; and the light-emitting elements in the fifth and sixth pixels have different emission spectrums from each other.

Systems and methods are described that relate to quantum dot (QD) structures for lighting applications. In particular, quantum dots and quantum dot containing inks (comprising mixtures of different wavelength quantum dots) are synthesized for desired optical properties and integrated with an LED source to create a trichromatic white light source. The LED source may be integrated with the quantum dots in a variety of ways, including through the use of a small capillary filled with quantum dot containing ink or a quantum dot containing film placed appropriately within the optical system. These systems may result in improved displays characterized by higher color gamuts, lower power consumption, and reduced cost.

A color OLED device is described having one or more pixels, at least one pixel comprising: four or more light-emitting elements, each light-emitting element comprising one or more layers of electroluminescent organic material producing a broadband light having a variable frequency-dependent luminous efficacy emission spectrum, and each light-emitting element further comprising a filter for filtering the broadband light and emitting a different color of light; wherein the different colors of light emitted by three of the light-emitting elements specify a first color gamut of the OLED device, and an additional one or more of the light-emitting elements emit at least one additional different color of light and wherein the frequency range of the filter of the additional light emitting element is matched to a portion of the broadband light frequency range having a radiant intensity greater than the radiant intensity of the frequency range of at least one of the filters of the three light-emitting elements specifying the first color gamut of the OLED device, and the additional one or more light emitting elements having luminous efficiency greater than that of at least one of the three light emitting elements specifying the first color gamut.

A tandem OLED device having spaced electrodes includes broadband light-emitting units disposed between the electrodes that produce different emission spectra and each light-emitting unit produces light that has multiple spaced peak spectral components, and an intermediate connector disposed between each of the light-emitting units. The device also includes an array of at least three different color filters associated with the device which receives light from the broadband light-emitting units, the band pass of each of the color filters being selected to produce different colored light, wherein the full width at about half maximum of at least one of such spaced peak spectral components produced by each emitting unit is within the band pass of a color filter, and wherein each of the at least three different color filters receives at least one spaced peak spectral component having a full width at about half maximum that is within its band pass.

An OLED display device includes: an array of light emitting pixels, each pixel having red, green, and blue OLEDs and at least one additional colored OLED that expands the gamut of the display device relative to the gamut defined by the red, green and blue OLEDs, wherein the luminance efficiency or the luminance stability over time of the additional OLED is higher than the luminance efficiency or the luminance stability over time of at least one of the red, green, and blue OLEDs; and means for selectively driving the OLEDs with a drive signal to reduce overall power usage or extend the lifetime of the display while maintaining display color accuracy. In accordance with various embodiments, the present invention provides a color display device with improved power efficiency, longer overall lifetime, expanded color gamut with accurate hues, and improved spatial image quality.

A tandem white light-emitting OLED device is disclosed comprising a spaced anode and cathode, a light reflector associated with either the anode or the cathode, and at least two white light emitting units. The first white light-emitting unit has a set of at least two emission peaks in the blue and yellow spectral regions that are more intense than any other emission peaks that may be present in the emission spectrum of the first white light-emitting unit. The second white light-emitting unit is disposed closer to the reflector than the first white light-emitting unit and includes a set of at least three emission peaks in the blue, green, and red spectral regions that are more intense than any other emission peaks that may be present in the emission spectrum of the second white light-emitting unit. An intermediate connector is disposed between the first and second white light-emitting units.

A display system for providing a user viewable visible image, includes a view screen for receiving organic laser light and having a diffusing optical element so that the view screen, in response to organic laser light, produces a viewable visible image, wherein the diffusing optical element includes a viewing angle greater than 160° in a first viewing direction and greater than 100° in a second viewing direction orthogonal to the first direction; one or more organic laser light sources arranged in an array with each such laser light source including a vertical cavity design and means for projecting and modulating the intensity of the organic laser light from the array onto the view screen in a pattern to cause a visual image to be produced by the view screen; and means associated with the view screen for reducing speckle in the organic laser light.

Image processing enhances display quality by controlling both the image modulator and the light sources.The image processing system utilizes a combination of user inputs, system configuration, design information, sensor feedback, pixel modulation information, and lighting control information to characterize the display environment on a per pixel basis. This per pixel characterization information is combined with one or more frames of the incoming real time display data. The image processing system processes each incoming pixel and produces a modified corresponding output pixel. Each pixel of each frame is processed accordingly.The image processing system also produces control information for the light sources. The light source control information can control individual lamps, tubes or LEDs, or can control a block or subset of the light sources. The resulting display has improved image consistency, enhanced color gamut, higher dynamic range and is better able to portray high motion content.

A method for reconstructing an extended color gamut digital image from a limited color gamut digital image includes transforming the limited color gamut digital image in the particular limited color gamut color space to a reference color space forming a limited color gamut digital image in a reference color space; providing a modified inverse color adjustment function which, when such function operates on the limited color gamut digital image in the reference color space, produces the reconstructed extended color gamut digital image having reduced highlight color saturation for highlight color values when compared with corresponding color values of the initial extended color gamut image; and operating on the limited color gamut digital image in the reference color space with the modified inverse color adjustment function to form the reconstructed extended color gamut digital image having reduced levels of color contouring and quantization artifacts.

A scanning endoscope, amenable to both rigid and flexible forms, scans a beam of light across a field-of-view, collects light scattered from the scanned beam, detects the scattered light, and produces an image. The endoscope may comprise one or more bodies housing a controller, light sources, and detectors; and a separable tip housing the scanning mechanism. The light sources may include laser emitters that combine their outputs into a polychromatic beam. Light may be emitted in ultraviolet or infrared wavelengths to produce a hyperspectral image. The detectors may be housed distally or at a proximal location with gathered light being transmitted thereto via optical fibers. A plurality of scanning elements may be combined to produce a stereoscopic image or other imaging modalities. The endoscope may include a lubricant delivery system to ease passage through body cavities and reduce trauma to the patient. The imaging components are especially compact, being comprised in some embodiments of a MEMS scanner and optical fibers, lending themselves to interstitial placement between other tip features such as working channels, irrigation ports, etc.

The present invention pertains to a pigment based inkjet ink and ink set. More particularly the invention pertains to an ink that is red, green or blue in color comprised of certain pigment combinations. The invention further pertains to an ink set comprised of at least one red, green or blue ink and most preferably to an ink set with at least six differently colored inks that includes a cyan, magenta, yellow, red, blue and green ink.

The invention provides a lighting unit comprising a source of blue light, a source of green light, a first source of red light comprising a first red luminescent material, configured to provide red light with a broad band spectral light distribution, and a second source of red light comprising a second red luminescent material, configured to provide red light with a spectral light distribution comprising one or more red emission lines. Especially, the first red luminescent material comprises (Mg,Ca,Sr)AlSiN3:Eu and / or (Ba,Sr,Ca)2Si5-xAlxOxN8-x:Eu, and the second red luminescent material comprises K2SiF6:Mn.

Spectral separation filters for channels of a 3D image projection incorporate passbands of primary colors. In at least one of the filters, passbands are present in more than 3 primary colors. A set of two filters include a first filter having passbands of low blue, high blue, low green, high green, and red, and a second filter having passbands of blue, green, and red. The additional primary passbands of the first filter allow for an increased color space in projections through the filters compared to filters only having red, green, and blue primaries. The added flexibility of the increased color space is utilized to more closely match a color space and white point of a projector in which the filters are used.

To provide a blue composition for a color filter which realizes an image with a high color purity, a color filter and a color image display device.A color image display device comprising a combination of light bulbs, a color filter having color elements of at least three colors of red, green and blue corresponding to the light bulbs, and a backlight for transmission illumination, wherein the backlight contains a LED in its structure, and under the following definitions: λn nm represents a wavelength at every interval of 5 nm in the visible light range of from 380 to 780 nm; TR(λn) a spectral transmittance (%) at a wavelength λn nm by a red pixel of the color filter; and I(λn) a relative emission intensity, normalized by a total emission intensity, at a wavelength λn nm from the backlight, these satisfy the following condition (1):I(620-680)×TR(620-680)≧1.1   (1)

An organic light-emitting device (OLED) includes an anode, a cathode, and a light-emitting layer disposed between the anode and the cathode, wherein the light-emitting layer includes a dominant host and a dopant. The device also includes an electron-transporting layer disposed in direct contact with the light-emitting layer on the cathode side, wherein the electron-transporting layer includes an electron-transporting material having the same chromophore as that of the dominant host in the light-emitting layer, wherein the electron-transporting material constitutes more than 50% by volume of the electron-transporting layer, and wherein the electron-transporting material has a greater reduction potential than that of the dominant host in the light-emitting layer.

A LCD device includes a first substrate including a plurality of pixels each having a white (W) sub-pixel and red (R), green (G), blue (B) and yellow (Y) sub-pixels surrounding the W sub-pixel; thin film transistors each connected to gate and data lines over the first substrate; first to fourth pixel electrodes connected to each of the thin film transistors and disposed to correspond to one of the R, G, B and Y sub-pixels; a color filter layer including red (R), green (G), blue (B) and yellow (Y) color filters on a second substrate, each of the R, G, B and Y color filters corresponding to one of the R, G, B and Y sub-pixels; a common electrode on the color filter layer; and a liquid crystal layer interposed between the color filter layer and the first to fourth pixel electrodes.

The invention belongs to an optical field and particularly relates to a light source module, a liquid crystal display device comprising the light source module, and a neon lamp display device comprising the light source module. The light source module comprises a light-emitting unit and a light guide board; the light guide board comprises a main body and lattice points arranged on the main body; a quantum dot material is doped in the lattice points; the quantum dot material is stimulated by light of a light-emitting unit to emit light with a specific wavelength. The display color gamut of the liquid crystal display device applying the light source module and the neon lamp display device can be greatly improved.

To provide a compact projector in which a projection image is formed by using four kinds of color light so as to expand an expressible color gamut of the projection image and to achieve an excellent light utilization efficiency, a projector includes a light source, a color-separation optical system, a light-modulation optical system, and a color-synthesis optical system. The color-separation optical system produces four kinds of color light whose output directions are different from each other. The light-modulation optical system includes a first two-color-modulation electro-optical device to modulate any two of the four kinds of color light separated by the color-separation optical system and a second two-color-modulation electro-optical device to modulate the remaining two kinds of color light. Each two two-color-modulation electro-optical device includes a microlens array on a substrate close to the color-separation optical system and a plurality of sub-pixels corresponding to respective microlenses.

A glass tube including quantum dots in a polymerized matrix is described. An optical component and other products including such glass tube, a composition including quantum dots, and methods are also disclosed.

A digital display system consists of an image modulator and multiple light modulators. An image processing system processes an incoming data stream, scans processed data to an image modulator and controls for the light modulators. Other user inputs and sensors are used to affect the processing and controls. The timing for scanning the processed data into the image modulators is controlled along with the intensity and wavelength of the light modulators. The display system may implement a spatial and temporal image processing, digital shutter controls, rolling shutter controls, sequential color output, adaptive dynamic sensor feedback, frame rate matching, motion compensated field sequencing and a variety of other techniques to produce a high quality display output. The resulting display has improved image consistency, enhanced color gamut, higher dynamic range and is better able to portray high motion content.

A color electrostatographic printer apparatus applies respective color separation toner images to a receiver member to form a color image. A fuser station fuses, or at least tacks, the color image to the receiver. A clear toner overcoat is then applied to the fused color toner image using an inverse mask, and enhanced glossing of the image is provided by a belt glosser to improve color gamut.

The present invention pertains to a dye-based inkjet ink set and, more particularly, to an ink set with at least six differently colored inks. The ink set includes at least a cyan, magenta, yellow, red, blue and green ink.

A method of making a color electroluminescent display device that includes determining a number of light emitting elements per pixel; and providing a substantially continually variable wavelength set of inorganic light-emitters having a spectral width. The same number of different inorganic light emitters is selected to emit light at the same determined number of different wavelengths and that provide the maximum color gamut area within a perceptually uniform two-dimensional color space. The color electroluminescent display device is formed having the same determined number of light emitting elements per pixel, wherein the light emitting elements in each pixel employ the same determined number of different inorganic light emitters.

A LCD device includes a first substrate including a plurality of pixels each having a white (W) sub-pixel and red (R), green (G), blue (B) and yellow (Y) sub-pixels surrounding the W sub-pixel; thin film transistors each connected to gate and data lines over the first substrate; first to fourth pixel electrodes connected to each of the thin film transistors and disposed to correspond to one of the R, G, B and Y sub-pixels; a color filter layer including red (R), green (G), blue (B) and yellow (Y) color filters on a second substrate, each of the R, G, B and Y color filters corresponding to one of the R, G, B and Y sub-pixels; a common electrode on the color filter layer; and a liquid crystal layer interposed between the color filter layer and the first to fourth pixel electrodes.

The invention relates to the technical field of liquid crystal display and discloses a liquid crystal display panel, a display device, and a manufacturing method of the liquid crystal display panel. The liquid crystal display panel comprises a color filter, a protective layer, a liquid crystal layer and a transparent protective plate, wherein the color filter is positioned on an array substrate and comprises a black matrix and a color filter layer with different color regions; the different color regions respectively have different sizes of quantum dots; the different sizes of quantum dots generate corresponding colors through excitation; the protective layer is positioned on the liquid crystal layer; the liquid crystal layer is positioned on the protective layer; and the transparent protective plate is positioned on the liquid crystal layer. According to the technical scheme of the invention, the emission spectrum of the quantum dots is narrow and the luminous efficiency is high, and light of backlight can be efficiently converted into light closed to monochromatic light, so the color gamut of the liquid crystal display panel is greatly improved and the display quality of the display panel is improved.