172results about How to "Improve color saturation" patented technology

This invention relates to liquid crystal (LC) displays comprising cells of well-defined shape, size and aspect ratio which cells are filled with a liquid crystal composition preferably containing dichroic dye(s), and novel processes for their manufacture.

A light emitting sign comprising a light emitting display surface including at least one phosphor, and at least one radiation source configured to irradiate the display surface with excitation energy such that the phosphor emits light of a selected color. The sign further comprises a filter which is substantially transparent to light emitted by the display surface, filtering other colors of light. The display surface may be configured into a shape of a character, a symbol, or a device. Alternatively, a mask having at least one window substantially transparent to the emitted light and / or at least one light blocking region may be provided in which the window and / or light blocking region define a character, a symbol, or a device.

An LED signal lamp (100) comprises: a housing (102), at least one LED excitation source (108) operable to emit excitation radiation of a first wavelength range (blue light), at least one phosphor material (114) for converting at least a part of the excitation radiation to radiation of a second wavelength range and a substantially transparent cover (104) provided on the housing opening. In one arrangement the excitation source (LED chip) incorporates the phosphor material. Alternatively, the phosphor can be provided remote to the excitation source such as for example on a transparent substrate which is disposed between the excitation source and transparent cover. In other arrangements, the phosphor is provided on the transparent cover or other optical components as a layer on a surface of the cover or incorporated within the cover / optical component material.

An exposed lens retroreflective article that includes a binder layer; a layer of spaced apart optical elements that are partially embedded in the binder layer; a penetrated colored layer that is located between the spaced apart optical elements; and a reflective layer that is located functionally behind the layer of optical elements and the penetrated colored layer.

The recording ink having a water, a water-soluble organic solvent, a colorant, and at least one fluorochemical surfactant selected from the following Structural Formulae (1) to (3). Structural Formula (1): where, Rf is a fluorine-containing group; and m, n, and p are integers in the Structural Formula (1). Structural Formula (2): where, Rf is a fluorine-containing group; X is a cationic group; Y is an anionic group; and q is an integer in the Structural Formula (2). Structural Formula (3): where, Rf is a fluorine-containing group; X is a cationic group; Y is an anionic group; and q is an integer in the Structural Formula (3).

An electrowetting display device includes a first and a second transparent substrates, multiple partition walls, a polar liquid, a non-polar liquid, and a phosphor layer. The non-polar liquid is opaque and immiscible with the polar liquid. The phosphor layer is formed on at least one of the first and the second transparent substrates. The phosphor layer comprises a first part that transforms the short-wavelength light into red light, a second part that transforms the short-wavelength light into green light, and a third part that transforms the short-wavelength light into blue light or allows the short-wavelength light to pass therethrough without transformation. Each of the first, the second, and the third parts is corresponding to one pixel unit.

The invention relates to the technical field of color space conversion, and discloses a method and a system for processing RGB (Red, Green, Blue) data. The method comprises the following steps of S1, converting three input color values of R, G and B into an HSV (Hue, Saturation, Value) color space; S2, under the condition of remaining a hue H value and a saturation S of the HSV color space value unchanged, adjusting a value of brightness V; and S3, converting the H value, the S value and the V value processed through the step S2 into the RGBW (Red, Green, Blue, White) color space from the HSV color space, and displaying. The RGB color space is converted into the HSV color space, the brightness V is improved under the condition of remaining the H and the S in the HSV color space unchanged, and the HSV color space is converted into the RGBW color space, so that the brightness can be improved while better hue and color saturation are maintained and color transition is natural.

A high sensitivity, single chip, low light level imaging device is provided. The imaging device of the present invention utilizes sparse color sampling, to maximize the luminance information gathered. In particular, color information is gathered by a small proportion of the pixels included in an image sensor, while the remaining pixels operate at full spectrum sensitivity. The present invention allows the correct hue of objects to be determined, while providing high sensitivity to available luminance information in a scene. The imaging device can include a global near infrared blocking filter that can be selectively placed in the optical path of the device. In addition or alternatively, opaque pixels may be included in the image sensor to correct for errors caused by charge diffusion.

The invention relates to the technical field of color space conversion and discloses a method and a system for processing RGB (red, green and blue) data. The method includes the following steps of firstly, converting three colors of input R, G and B into a HSV (hue, saturation and value) color space; secondly, adjusting the value of luminance V on the premise of keeping the value H (hue) and the value S (saturation) in the HSV color space constant; thirdly, converting the value H, the value S and the value V (value), which are processed in the second step, into the RGBW (red, green, blue and white) color space to be displayed. By converting the RGB color space into the HSV color space, promoting the luminance V on the premise of keeping the H and the S in the HSV color space constant, and converting the HSV color space into the RGBW color space then, display luminance can be improved when the hue, the saturation and natural transition of colors can be kept better.

The object of the present invention is to provide a recording ink which is excellent in color developing properties, has a high delivery stability, can improve remarkably color saturation and can form a high-quality image, when the ink is used for printing a plain paper, further an ink cartridge, an ink record, an inkjet recording apparatus and an inkjet recording process.

A display apparatus includes a luminance compressing section, a luminance extending section, and a W calculating section. The luminance compressing section subjects three color signals to luminance compression according to a luminance in a preceding frame, and outputs compressed color signals. The luminance extending section outputs luminance extended and converted color signals of respective three colors. Each of the luminance extended and converted color signals is obtained by subtracting a corrected minimum luminance value from a luminance extended color signal which is obtained by subjecting the compressed color signal to luminance extension at a luminance extending rate S in accordance with a function F(t). The function F(t) has as a variable a ratio t of a minimum luminance value to a maximum luminance value of the compressed color signals. The corrected minimum luminance value is obtained by multiplying the minimum luminance value by a coefficient k. The W calculating section outputs the minimum luminance value as a white signal. The function F(t) has a constant according to light emitting efficiencies of four color picture elements. The coefficient k is set so that a luminance of the W (white) color signal becomes equal to or less than a minimum luminance of the luminance extended and converted color signals of the three colors.

A pixel structure of an electroluminescent display panel includes a first sub-pixel region, a second sub-pixel region, a third sub-pixel region and a fourth sub-pixel region having different cavity lengths. The first sub-pixel region and the second sub-pixel region share a first organic light-emitting layer, which can generate a first primary color light in the first sub-pixel region, and a second primary color light in the second sub-pixel region. The third sub-pixel region and the fourth sub-pixel region share a second organic light-emitting layer, which can generate a third primary color light in the third sub-pixel region, and a fourth primary color light in the fourth sub-pixel region. The first primary color light, the second primary color light, the third primary color light and the fourth primary color light have different spectra of wavelength.

The invention relates to a light source system comprising a blue LD light source group, a beam splitting device, a fluorescent color wheel, a first drive device, a beam combining device, a filter color wheel, and a second drive device. The beam splitting device is used for transmitting blue light and reflecting colored light newly generated by the fluorescent color wheel. The fluorescent color wheel comprises at least three regions which are distributed along the center axis of the fluorescent color wheel, do not overlap, and are shaped like a fan ring, wherein the at least three regions comprise a first region for transmitting blue light, a second region for converting the blue light into red light, and a third region for converting the blue light into green light. The first drive device is used for driving the fluorescent color wheel to rotate along the center axis of the fluorescent color wheel. The beam combining device is used for combining colored light emitted by the fluorescent color wheel. The filter color wheel is used for selecting colored light in a time-sharing manner. The second drive device is used for driving the filter color wheel to rotate along the center axis of the filter color wheel so as to make the fluorescent color wheel and the filter color wheel rotate synchronously. Through the above method, the light source system provided by the invention can improve the color saturation and color gamut of a light source so as to improve the display quality of a picture displayed through projection.

The invention discloses a digital video image enhancement achieving system and method based on an FPGA. The digital video image enhancement achieving method based on the FPGA mainly comprises the steps of dehazing processing on a current frame image and anti-reflection processing on the current frame image, wherein the step of dehazing processing on the video image is achieved through a dark channel prior dehazing algorithm, and a good dehazing effect can be achieved; the step of anti-reflection processing on the current frame image is achieved through an image histogram equalization algorithm, and the effect of converting a low-illumination-level gray image into a clear image can be achieved. By the adoption of the image dehazing process and the image anti-reflection process, the brightness, contrast ratio and color saturation of the image can be improved, and the image can be clearer, transparent and saturated in color.

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.

A diffraction grating recording medium including a waveguide layer and a grating structure layer is provided. The waveguide layer has a reflective surface and a light incident surface, in which a thickness of the waveguide layer is between 100 nanometers and 2 micrometers, and the reflective surface reflects a light that enters the waveguide layer from the light incident layer. The grating structure layer is disposed on the light incident surface of the waveguide layer, in which the grating structure layer has a plurality of diffractive elements, and the arranging period of the diffractive elements is between 50 nanometers and 900 nanometers.

The invention relates to a light emitting diode (LED) light guide plate lamp component. The component comprises a framework, at least one light source in any color, a light guide plate, fluorescent powder and a reflecting plate, wherein the at least one light source and the light guide plate are fixed by the framework; the fluorescent powder is adhered to the side part of the light guide plate corresponding to the light source, and receives light rays from the light source to be transited to an excited state, so that the light guide plate only receives mixed light rays from the light source and the fluorescent powder; and the reflecting plate is arranged on the back side of the light guide plate and reflects the light rays towards the light guide plate. Compared with the prior art, the technical scheme has great advantages in the aspects of cost, technical difficulty and an actual using effect; and the technical performance of the component greatly exceeds that of the conventional similar products under the condition of the same material or an inferior material, so the application prospect of the component can be foreseeably great.

A side type backlight module including a first light guide plate (LGP), a plurality of second LGPs, a plurality of red point light sources, a plurality of green point light sources, and a plurality of blue point light sources is provided. The first LGP has a first light emitting surface, a bottom surface, and a first light incident surface connecting the first light exit surface and the bottom surface. The second LGPs are disposed beside the first light incident surface. Further, a plurality of red, green, and blue point light sources is respectively disposed beside the second LGPs. The lights emitted by the red point light sources, the green point light sources, and the blue point light sources are blended to be a white light by each of the second LGPs and then incident to the first light incident surface.

The invention provides a light supply apparatus with high brightness, high contrast and high color saturation and projection display equipment which are used in a projection system. The light supply apparatus comprises a supplemental light source and a laser light source, and a reflecting mirror which synthesizes the light radiated by the supplemental light source and the laser radiated by the laser light source into a bunch. The reflecting mirror comprises a reflection part used for reflecting lasers radiated by the laser light source and a transmission part which light beams sent out by the supplemental light source can directly transmit and pass though. The invention skillfully leads the lasers of a laser device into the light bulb of the projection system and an LED illuminating source, can successfully adjust the intensity distribution of tricolor of red, green, and blue, increases the performance such as illumination, color saturation and contrast and the like, and has very high utility value in the projection display field.

The invention discloses a method for inducing wood discoloration by using a chemical color-changing agent. The method comprises the following steps that firstly, a precursor substance solution is coated on the surface of wood, then the surface of the wood is coated with the color-changing agent after drying, and drying is carried out again to complete the color change of the wood to obtain a finished product. According to the method, the color saturation after chemical color change of the wood can be improved, so that the color of the wood is more easy to display after the wood is subjected tothe color change, the excellent permeability performance is achieved, the bonding strength of the wood color-changing layer is higher, the loss resistance is better, moreover, the displayed color isnatural and beautiful, the texture is clearer, the layering sense is stronger, and the color is richer.

An imaging device is provided with an imaging element. The imaging element has a sensitive wavelength region including an infrared wavelength region, and selectively including a visible wavelength region, and is composed of at least three types of pixels having spectral sensitivities different from each other. The imaging device generates a color image, based on a luminance signal including an infrared wavelength component, and based on a color-difference signal that has been generated based on a visible wavelength component in original image data. The luminance signal including an infrared wavelength component is generated, based on a signal obtained by compressing the dynamic range of original image data including at least three types of original image components acquired by an imaging operation of the imaging element.

An electrowetting display device includes a first and a second transparent substrates, multiple partition walls, a polar liquid, a non-polar liquid, and a phosphor layer. The non-polar liquid is opaque and immiscible with the polar liquid. The phosphor layer is formed on at least one of the first and the second transparent substrates. The phosphor layer comprises a first part that transforms the short-wavelength light into red light, a second part that transforms the short-wavelength light into green light, and a third part that transforms the short-wavelength light into blue light or allows the short-wavelength light to pass therethrough without transformation. Each of the first, the second, and the third parts is corresponding to one pixel unit.

The invention relates to a high-quality textile dyeing mechanism, which includes a frame, a transmission roller rotatably mounted on the frame, a spraying and dyeing assembly fixedly arranged above the transmission roller, and a rotatively mounted frame located on both sides of the transmission roller The cloth guide roller and the driving assembly that drives the transmission roller to carry out gray cloth transmission also include a smear assembly that is located on one side of the transmission roller and moves along its outer circumference. The first connecting rod connected to the driving assembly, the second connecting rod connected to the other end of the first connecting rod in rotation, the third connecting rod connected to the second connecting rod at one end and installed on the second connecting rod The smearing roller at the other end of the three connecting rods; the greige cloth is pre-dyed, dyed and polished, and then reciprocated on the conveying roller by the smearing roller to achieve wrinkle removal, color fixation and uniform dyeing of the greige cloth. The technical problems of uneven dyeing and easy fading in the background technology.

The invention discloses a method and a device for compensating a field sequential backlight color. The method and the device are used for solving the technical problems that the present common field sequential backlight technology is poor in color expressive force and inferior in color saturation. According to a twice compensating technology adopted by the invention, a first compensating calculation for an image signal is utilized to decompose an image signal into a screen image and a backlight luminance distribution, and then the screen image is compared with an original image, and finally the screen image is compensated for the second time. After the twice compensation is performed, the color saturation of the field sequential backlight technology is increased, the color expressive force is improved and the display effect of a frame is promoted.