255results about How to "Improve coloring performance" patented technology

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.

The invention discloses an image saturation processing method based on the depth of field, which is used to process scene data collected by an imaging device. The scene data includes a main scene image. The processing method comprises the following steps: processing scene data to judge whether there is a human image in the scene; if there is a human image in the scene, processing the scene data to identify a human image area; and processing a main scene image to reduce the saturation of the human image area. In addition, the invention discloses a processing device and an electronic device. According to the image saturation processing method, the processing device and the electronic device, if there is a human image area in a shot scene, the human image area is identified, and the saturation of the human image area is reduced. The saturation of the human image area is processed separately. The reduction in saturation of the human image area is conducive to the color performance of the human image area and a better image effect.

The light-emitting device includes a substrate and a plurality of light-emitting sections. A first light-emitting section is made up of LED chips and a first fluorescent-substance-containing resin layer, and a second light-emitting section is made up of LED chips and a second fluorescent-substance-containing resin layer. The first fluorescent-substance-containing resin layer and the second fluorescent-substance-containing resin layer are provided in a plurality of locations such that the fluorescent-substance-containing resin layers for the different light-emitting sections are adjacently arranged.

A display device and a method of manufacturing the same are provided. The display device includes an illuminate unit and a color filter. The illuminate unit has a light-emitting chip and a plurality of quantum dot phosphors for generating a color light which has an optical spectrum including the first blue peak wavelength, a first green peak wavelength, and a first red peak wavelength. The color filter is disposed in the light path of the color light, wherein the color filter has a transmittance spectrum having a second blue peak wavelength, a second green peak wavelength, and a second red peak wavelength. The first blue peak wavelength, the first green peak wavelength, and the first red peak wavelength respectively match the second blue peak wavelength, the second green peak wavelength, and the second red peak wavelength in order to enhance the color performance of the display device.

A small-size LED packaging structure for enhancing a Sight emitting angle includes an opaque base and at least one light emitting chip. The light emitting chip is installed on the opaque base, and the opaque base includes a transparent sidewall disposed around the base and a concave-cup space, and the transparent sidewall is formed by a molding method, and the concave-cup space is filled with a packaging gel by a dispensing method, and the packaging gel is doped with at least one phosphor powder. Therefore, the transparent sidewall can increase the light emitting angle to 140°~180° and reduce the amount of internal reflected light significantly to avoid the occurrence of a yellow ring phenomenon, and the phosphor powder can enhance the color manifestation and the color gamut.

Exposed lens retroreflective article 10 that comprises a colored layer 14 and a layer of optical elements 12 that are partially embedded in the colored layer 14. The colored layer 14 comprises reflective flakes 16 and a dye that is covalently bonded to a polymer 18. The articles can retain their color after multiple industrial wash cycles. The use of a reactive dye, reflective flakes, and / or polymer precursor during the preparation of the colored layer enables a launderably-durable colored retroreflective article to be made without the use of a solvent and without the use of a temporary carrier.

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 discloses an organic electroluminescent display device which comprises a lower substrate, an outer cover substrate, a pixel control element, a first organic light emitting unit and a second organic light emitting unit. The outer cover substrate is opposite to the lower substrate. The pixel control element is arranged between the lower substrate and the outer cover substrate. The first organic light emitting unit is arranged between the pixel control element and the outer cover substrate. The second organic light emitting unit is arranged between the pixel control element and the lower substrate. The pixel control element is electrically connected with the first organic light emitting unit and the second organic light emitting unit.

The invention discloses a manufacturing method of a flexible display device, comprising the following steps of: forming a sacrificial layer on a first rigid substrate, and then forming a first soft substrate on the sacrificial layer, wherein the sacrificial layer is suitable for absorbing a bond dissociation light to generate the phenomenon of molecular scission, the bond dissociation light can penetrate through the first soft substrate, the penetration rate of a visible light of the first soft substrate is larger than the penetration rate of a visible light of the sacrificial layer; and then irradiating the sacrificial layer by using the bond dissociation light to generate the phenomenon of molecular scission so as to separate the first soft substrate and the first rigid substrate. Because the penetration rate of the visible light of the first soft substrate is high, the flexible display device can truly display true colors of an image, and the color expression of the flexible display device is further promoted.

A color filter array on pixel array substrate includes a substrate, an active device array, a wavelength converting layer, a first passivation layer, a second passivation layer, a color filter array, and a pixel electrode layer. The active device array is disposed on the substrate. The wavelength converting layer is disposed on the active device array and includes at least one first wavelength converting pattern. The first passivation layer is disposed on the wavelength converting layer and the active device array and covers the first wavelength converting pattern and the active device array. The color filter array is disposed on the first passivation layer and includes a plurality of first, second, and third color filter patterns disposed alternately. The first wavelength converting pattern is disposed corresponding to one first color filter pattern. The second passivation layer and the pixel electrode layer are sequentially disposed on the color filter array.

The invention relates to benzene-free and ketone-free composite plastic ink which comprises 25-35 parts of modified polyurethane resin, 5-10 parts of matching resin (polyketone resin), 0.5-1 part of dispersant, 7-15 parts of pigment, 2-4 parts of adhesion promoter, 0.1-0.3 part of wax powder, 10-15 parts of ethanol, 20-30 parts of acetic ether and 10-20 parts of isopropyl alcohol, wherein the matching resin is L-872 polyketone resin, the contents of the ethanol, the isopropyl alcohol and the acetic ether are all above 99%, the content of benzene and ketone substances is below 0.01%, the dispersant is TM-950, the adhesion promoter is a titanate coupling agent HY-201, and the wax powder is polyethylene wax. The benzene-free and ketone-free composite plastic ink takes the isopropyl alcohol, the acetic ether and the ethanol as diluents without the assistance of the benzene and ketone substances for dissolving. The benzene-free and ketone-free composite plastic ink has no harm to operators, society and environment from preparation and production to printing and use and has excellent safe and healthy property.

Methods, systems and apparatus for a liquid crystal display panel having a first substrate with a color filter, an over-coating and a common electrode. The second substrate includes an insulating layer surface facing the first substrate, a pixel electrode, a plurality of common and pixel domain guides formed on the common and the pixel electrodes, a plurality of electric shields on one of the common or pixel electrodes and a liquid crystal layer vertically aligned between the first and second substrates. The panel also includes a drive circuit for applying a voltage to generate an electric field to control liquid crystal molecule orientation corresponding to the plurality of domain guides and electric shields to form a multi-domain liquid crystal display panel device. The plural domain guides are either protrusions or slits formed in the common electrode and the pixel electrode to form the multi-domain vertical alignment liquid crystal device.

To minimize the variability in the emitted light color and improve the unevenness of color tone, a light emitting device comprises a light emitting element and a fluorescent substance that is excited by the light emitting element, wherein the light emitting element has an emission spectrum in a region from ultraviolet to visible light of short wavelengths, and the fluorescent substance has an emission spectrum that includes two or more emission peaks with at least two peaks of the two or more peaks being in the relation of complementary colors of each other.

The present invention is a tinted, optical adhesive for use in making plasma display filters comprising a substantially acid free, pressure-sensitive adhesive (PSA) containing a narrow-band, visible spectrum dye (e.g. less than 30 nm bandwidth) and a broader-band, near infra-red spectrum dye (e.g. greater than 200 nm), the second dye providing enhanced thermal stability as well as near infra-red (NIR) blocking. Further, acid-free adhesives offer improved stability of light control dyes. In the present invention, porphyrin-based dyes combined with acrylate-based, pressure-sensitive optical adhesives are preferred. Invention offers reduced number of functional layers in an optical filter structure as well as reduced number of manufacturing (lamination) steps in the optical filter / plasma display assembly process.

The invention belongs to the technical field of ceramic pigments, and specifically relates to a preparation method of a spinel type composite ultrafine blue ceramic pigment. The preparation method comprises the following steps: (1) dissolving CoAl2O4 into water to obtain a solution (A); (2) evenly mixing butyl titanate with anhydrous ethanol with a volume 2 to 3 times of that of butyl titanate to obtain a solution (B); (3) adding the solution (B) into the solution (A) under stirring, stirring the mixed solution at a room temperature for 5 hours or more, and allowing the mixed solution to stand still to carry out aging for 24 to 48 hours so as to obtain opaque gel; (4) drying and grinding the opaque gel obtained in the step (3) to obtain loosened precursor powder, transferring the precursor powder to a muffle furnace, and burning the precursor powder in the muffle furnace for 4 to 6 hours at a temperature of 400 to 500 DEG C so as to obtain the blue ceramic pigment. The prepared spinel type composite ultrafine blue ceramic pigment combines the excellent performances of CoAl2O4 and TiO2 and has the advantages of good thermal stability, high chemical stability, bright color and luster, and unchanged color at a high temperature.

A method for improving monochromatic white balance adjustment and calibration precision on the basis of three primary color brightness parameters is disclosed. The method comprises the steps of measuring brightness curve values corresponding to three primary colors which are red, green and blue; measuring predetermined stimulation values of original white, and defining three stimulation values corresponding to a gray scale value which is zero as low order stimulation values; selecting chromaticity coordinates and brightness values of red, green and blue as first to third chromaticity coordinates and first to third brightness values; deducting the low order stimulation values from first to forth groups of stimulation values after converting all chromaticity coordinates and brightness values into the first to forth groups of stimulation values, and deducting the lower order stimulation values form predetermined stimulation values; calculating a first mixing ration for mixing the first to third groups of stimulation values minus the lower order stimulation values into the predetermined stimulation values minus the lower order stimulation values; calculating a second mixing ratio for mixing three groups of simulation values minus the lower order stimulation values into a forth group of stimulation values minus the lower order stimulation values; calculating a final yield value on the basis of first and second mixing ratios and the brightness curve values and setting the final yield value on a display device.

The invention relates to a method for regulating the color resistance of a color filter and a display device using the method. The method comprises that a white light emitting diode is supplied to emit light with the wavelength of lambda i so as to be provided with lighting frequency spectrum (BL lambda i); a color filter is supplied and comprises a plurality of red color resistances, green color resistances and blue color resistances as well as has penetration frequency (CF lambda i); the paint composition or concentration of the red color resistance is regulated so as to improve the penetration efficiency of the wavelength lambdai in the range between 580 nanometers and 600 nanometers; the paint composition or concentration of the green resistance is regulated so as to improve the penetration efficiency of the wavelength lambda i in the range between 570 nanometers and 590 nanometers. The display device of the invention and the method for regulating the color resistance of a color filter can improve the color presentation of displayed pictures so that the chrominance of the displayed pictures can reach standard specification.

The invention provides a manufacturing method of a quantum dot color film substrate. On the basis of the characteristic that the wettability of a wettability changing layer with a photocatalyst changes better after the wettability changing layer is irradiated by ultraviolet light, a highly-fine quantum dot pattern is formed, the quantum dot manufacturing technology is simplified, and meanwhile the precision of the quantum dot pattern is improved; the manufacturing technology is simple, waste of quantum dot materials is reduced, the cost is reduced, and the obtained quantum dot color film substrate can effectively improve the saturation and color gamut of a display device and enhance the color expression ability of a display panel.

The invention relates to an optical film, and particularly relates to a quantum dot wide-color-gamut polyester film for a backlight module. The quantum dot wide-color-gamut polyester film for the backlight module is provided by the invention in order to solve a problem that an existing liquid crystal display is low in color gamut range. The polyester film comprises a base layer, wherein both sides of the base layer are provided with a barrier layer; the base layer comprises a quantum dot layer and an anti-sticking layer, and the anti-sticking layer is located at two sides of the quantum dot layer; and the base layer is of an ABA three-layer co-extrusion structure, the A-layer is the anti-sticking layer, and the B-layer is the quantum dot layer. The quantum dot layer comprises the following components in raw material: 50-90% of a super bright polyester chip and 10-50% of a quantum dot master batch. The anti-sticking layer comprises the following components: 80-90% of the super bright polyester chip and 10-20% of an anti-sticking master batch. The percentage is a percentage by weight. The brightness enhancement film or the diffusion film is prepared at the surface of the polyester film. The prepared brightness enhancement film or the diffusion film can enable a backlight source to have high brightness and a high NTSC value.

The invention provides a projection system (100) comprising a projection light source (110) and a color wheel (120), wherein the projection light source (110) comprises a solid state light source (115), configured to generate a solid state light source beam (111) having a solid state light source beam cross-section. Upstream of the color wheel (120) beam shaping optics (161) are arranged, configured to shape the solid state light source beam cross-section into a rectangular cross-section. The color wheel (120) comprises regions (125) of different luminescent material (170), excitable by the solid state light source beam (111) and configured to generate, upon excitation by the solid state light source beam (111), visible light (116) for projection on an image panel (290). The regions (125) are arranged at different distances from an axis of rotation (122) of the color wheel (120).

Disclosed are a wide-color gamut film and its applications. While the wide-color gamut film is manufactured, the method firstly confirms the type of the backlight. The film is designed to filter some specified frequency bands, especially the bands adjacent to the frequencies of red, green and blue lights. The parameters are referred to decide an overall thickness and an overall refractive index, and prepare a plurality of high-polymeric thin films. A wide-color gamut film is formed by assembling the thin films according to the configuration. The invention also relates to a display using the wide-color gamut film. The film is disposed between a panel module and a backlight module of the display. The film serves to reduce or filter out the light transmittance within the determined bands. The wide-color gamut film is provided for improving the crosstalk phenomenon among the frequency bands of the backlight.

The invention relates to an electrophoresis display and a manufacturing method thereof. The manufacturing method of electrophoresis display is implemented by firstly forming a plurality of pixel electrodes arrayed in plural groups on a first substrate, and then configuring a plurality of electrophoresis displaying units on the pixel electrodes, wherein each electrophoresis displaying unit comprises a plurality of colored charged particles and the colored charged particles corresponding to each electrophoresis displaying unit has the same color; on the other hand, forming a nonopaque electrode on a second substrate and configuring the second substrate on the electrophoresis displaying units so that the nonopaque electrode is positioned between the electrophoresis displaying units and the second substrate. The inventive electrophoresis display can be driven by part of the pixel electrodes selectively according to the color of the picture to be displayed, thus having good color display.

A color sequential display and a display method using the same are provided. The color sequential display displays a frame in a frame period. The frame includes a plurality of sub-frames. The frame period includes a plurality of sub-frame periods corresponding to the sub-frames. In the display method, a first color light source is turned on according to a first duty cycle within a first sub-frame period for displaying a first sub-frame. Next, a second color light source is turned on according to a second duty cycle within a second sub-frame period for displaying a second sub-frame. Finally, the first color light source and the second color light source are respectively turned on according to a first modified duty cycle and a second modified duty cycle. The first modified duty cycle and the second modified duty cycle are proportioned to the first and the second duty cycles.

The present invention provides a method for measuring and adjusting gray-step white balance of display automatically, that is to measure the white chroma coordinates and brightness of a display using an apparatus, and selecting the chroma coordinates of the three primary colors of red, green, blue in the known chroma space, to calculate the required mixing proportion of composing the white of the display by red, green, blue, according to Grassman's Low of Color Mixture; at the same time, to calculate the required mixing proportion of composing ideal white from the red, green, blue under some objective color temperature; to compare the two mixing proportion, and to take one proportion as one group plus value of the three primary colors of red, green, blue of the display to solve the problem of wasting time as well as manpower by the traditional adjusting gray-step white balance, and avoiding the artificial error due to adjusting manually.

A flat display device is adapted for human eye observation with or without applying a NVIS (Night Vision Imaging System). The flat display device includes a display panel, a backlight module and a backlight driving unit. The backlight module includes multiple red light LEDs (Light Emitting Diodes), green light LEDs and blue light LEDs that form together a light source array, so as to generate a backlight by mixing and projecting the red light, green light and blue light to the display panel. The backlight driving unit is electrically connected with the light source array and used to drive and control the red light LEDs, green light LEDs and blue light LEDs. At a night-vision mode, the backlight driving unit may, upon actuation of a actuating signal, adjust or disable the red light LED by for example decreasing or turning off the driving electricity sent to the red light LED, thereby achieving the requirements for nigh vision purposes.

A method for manufacturing quantum dots display panel comprises the following steps of: using an existing yellow light manufacturing process from color filter or combining with a dry etching manufacturing process to resin composition with surface-modified red quantum dots and surface-modified green quantum dots, then completing production of a quantum dots layer with a more refined graphical structure. Compared with other existing method for manufacturing quantum dots display panel, the present disclosure has the following advantages that simple preparation of raw materials and in making process, high-resolution graphics, large-scale volume production, and less processing time and cost are saved. The quantum dots are used into the structure of the color filter is to effectively improve color saturation and gamut of the display device, and to enhance color performance of display panel.