249 results about "High color" patented technology

The invention discloses an ink-jet printing defect identification method and system, and relates to the technical field of image processing, and the method comprises the steps: collecting a to-be-detected printing image, and carrying out the template matching with a standard image of a corresponding printing template; calculating a color difference value between each pair of matched pixel points, obtaining a color difference matrix, dividing a color difference range, and obtaining a high color difference region and a low color difference region; based on the high-color-difference area, identifying an obvious ink dot defect area; calculating the defect probability of each pixel point based on the low-color-difference region; obtaining a corrected Euclidean distance between the pixel points based on the defect probability, and clustering and identifying an unobvious ink dot defect area; the detection result and the distribution condition of the ink dot defects are counted, and feedback regulation and control of the ink jet system are achieved; through the pixel point template matching, clustering and color difference correction technologies, the problem of unobvious ink dot defects caused by missing detection is solved, and accurate identification of the ink dot defects is realized, so that the accuracy and reliability of product quality detection are enhanced, and the printing quality of products is improved.

The invention discloses a full-color LED screen optical adjustment and intelligent energy-saving detection method, and relates to the field of LED screen adjustment and energy saving. Ambient light data is collected through a bionic distributed sensor network, and features such as illumination intensity and color temperature are extracted through PCA dimension reduction; constructing a human eye visual perception model based on the CIE chromaticity diagram, and introducing a visual adaptation factor to dynamically adjust color gamut mapping; dividing a screen dimming area, and calculating an optimal brightness value by adopting a local contrast enhancement algorithm; the RGB ratio is optimized through a genetic algorithm, and the color difference between the mixed spectrum and the target color gamut is minimized; power consumption is monitored in real time, an energy consumption prediction model is established, and an optimization strategy is triggered when a predicted value exceeds a threshold value. The color gamut coverage rate is high, the local contrast ratio is excellent, and the comprehensive energy-saving rate is greatly improved; blue light harm is reduced, screen flicker is eliminated, the visual comfort is improved, the functions of peep prevention and block chain energy consumption evidence storage are achieved, and the display quality, the energy efficiency performance and the use safety of the LED screen are comprehensively improved.

The invention relates to the technical field of liquid crystal display, and provides liquid crystal display equipment based on a field order and a color image display method, which are used for improving the display quality of color images. In the method, one mixed color field and two monochromatic color fields form three color field distributions, the positions of the mixed color fields in each color field distribution are different, and the main colors of the mixed color fields at different positions are different, so that for each backlight partition, the distortion degree of an image block under each color field distribution can be calculated according to the content of the image block corresponding to the backlight partition, and the distortion degree of the image block under each color field distribution is calculated. The color field distribution corresponding to the lowest distortion degree is selected as the target color field distribution, dynamic adjustment of the position of the mixed color field in the three subframes of each image block is achieved, the displayed picture is made to be matched with the content of the image block, and therefore the color separation phenomenon is relieved, color distortion is reduced, and the quality of the displayed image is ensured.

The invention relates to a commercial building plane automatic color filling method based on a CAD embedded geometry engine. The problems that in the prior art, a traditional commercial building plane is low in color filling efficiency and insufficient in automation degree, and a color scheme is difficult to reuse and share are solved. The method comprises the following steps: S1, carrying out drawing preprocessing and layer configuration; s2, image area identification and interactive display; s3, manually processing the image and screening invalid areas; s4, calculating and displaying an image area; s5, performing dynamic rule matching on the captured business state label and the color filling area; s6, performing color scheme adjustment and one-key color filling operation; and S7, scheme multiplexing output. The method has the advantages that the color matching efficiency is high, the color filling automation degree is effectively improved, the design efficiency and operation convenience are remarkably improved, and the multi-business-form adaptation capacity of commercial design is enhanced.

According to the yellow leuco dye developing ink and the preparation method thereof disclosed by the invention, by optimizing the molecular structure of the yellow leuco dye and the matching relationship between the yellow leuco dye and a color developing agent, the ink can quickly develop under the conditions of low temperature, slight pressure or low-concentration acid / metal salt, the developing effect is distinct, and handwriting or patterns are clear and visible; by selecting a yellow leuco dye with better photostability of a color body after color development and introducing an antioxidant component, the color fading of a color development product under the irradiation of ultraviolet and visible light is effectively delayed, and the storage period of color development images and texts is prolonged; by improving an ink formula and a packaging process, the ink can keep good leuco stability in different environments such as high temperature, high humidity, low temperature and the like, and the phenomena of self color development, non-uniform color development and the like are prevented. The ink is colorless or light in color under normal conditions, can show bright yellow after being stimulated by acid, metal salt or heat, and has the characteristics of high color developing sensitivity, clean background and wide application range, and the comprehensive performance of the ink is remarkably improved.

The invention discloses a 3D printing method for realizing high color accuracy and real-time effect preview based on a pre-calculated material stacking scheme database, and belongs to the technical field of 3D printing. The core of the method is that a material stacking scheme database of the corresponding relation between printing result colors and material stacking schemes and printing effects is constructed in advance: after multiple basic semitransparent printing materials are arranged according to a specific rule, stacking printing is carried out through different sequences and combinations, and a physical color sample array is formed; after highlight interference is eliminated through a polaroid, color data of all samples are accurately collected, and a mapping relation is established between the color data and corresponding material stacking schemes and printing effects and stored in a database. When target color content is printed, the system queries the database through an efficient color matching algorithm, the optimal printing formula is rapidly obtained, meanwhile, the printing effect is accurately previewed through the real-time rendering technology, and the query efficiency of the algorithm is improved through the ordered arrangement structure of the database. And finally, the printer prints layer by layer according to the obtained stacking scheme, and a pattern effect with accurate colors is presented on the bottom surface of a finished product. According to the method, repeated calculation of a complex color model is avoided, and color printing which is high in color accuracy, low in cost, high in efficiency and compatible with various consumables is achieved through the experience database constructed at a time.

The present invention relates to a photonic crystal coating, a preparation method, and its application, belonging to the technical field of photonic crystal structure color generation. The photonic crystal coating comprises the following components, measured in parts by weight: 100 parts of a hard-core-soft-shell nanosphere dispersion, 1 to 8 parts of a leveling agent, 0.1 to 0.4 parts of a stray light absorber, and 0 to 6 parts of a high-boiling-point additive. The photonic crystal coating is directly prepared from hard-core-soft-shell colloidal nanospheres. The resulting structural color coating exhibits excellent structural stability (associated with high color fastness), high color saturation, and a significant iridescent effect.

The invention relates to a coloring composition, a color photoresist, a color filter and a display device, the coloring composition comprises a dye and a dispersant, the structural formula of the dye is shown as follows: at least one of X, R1, R2, R3, R4, X1, X2, X3 and X4 in dye molecules is configured to be connected with the dispersant through a chemical bond. According to the coloring composition provided by the invention, the dye and the dispersing agent can be connected through chemical bonds, so that precipitation or migration of the dye in the color filter prepared from the coloring composition is avoided, the weather resistance of the dye in the color filter is improved, and the reliability of the display device is improved.

The invention discloses a display panel and a manufacturing method thereof, and electronic paper. The display panel comprises a first array substrate and a first substrate; the first substrate is arranged on the first array substrate, the first substrate is provided with a first pixel space, and a first photonic crystal, a first black substance and a first dispersion medium are accommodated in the first pixel space; wherein the first array substrate, the first substrate, the first photonic crystal and the first dispersion medium can transmit light; the display panel comprises a display state and a transparent state, in the display state, the first photonic crystals are uniformly dispersed in the first dispersion medium, and at least part of the first black substance is adsorbed to the bottom wall of the first pixel space; in a transparent state, the first photonic crystal gathers in the first dispersion medium, and the first black substance is adsorbed on the side wall of the first pixel space. The electronic paper applying the display panel can have high color display and high transparency.

The application discloses a light source assembly and a backlight module, and relates to the technical field of display. The light source assembly comprises a support structure and at least four light emitting components. The support structure is formed with at least four accommodating grooves arranged at intervals and a light emitting surface formed on one side of the accommodating grooves. The at least four light emitting components are arranged corresponding to the at least four accommodating grooves and comprise a first light emitting component, a second light emitting component, a third light emitting component and a fourth light emitting component. Light emitted by at least three light emitting components can be mixed to form white light on one side of the light emitting surface, and at least one light emitting component can emit white light on one side of the light emitting surface. The application places each light emitting component in a plurality of accommodating grooves arranged at intervals, so that each light emitting component independently emits light and dissipates heat, and a light emitting component emitting white light in a full spectrum fills the peak and valley between narrow-band primary color spectra, thereby suppressing color deviation and reducing light leakage and color cast, giving consideration to high color gamut and high color rendering, and improving the stability of display quality.

The application discloses an LED lamp light mixing method and a light mixing circuit, which can solve the problem of color gamut waste caused by the mismatch between the color gamut of an app and the color gamut of a whole lamp while ensuring high color accuracy, and ensure the accuracy of the monomial quadratic function current calibration algorithm, so as to avoid the error of the monomial quadratic function current calibration algorithm caused by constant luminous flux; the cross multiplication algorithm is used to select the light mixing light source, improve the algorithm efficiency, reduce the MCU algorithm power requirement, and avoid the problem that the target color point cannot calculate the corresponding light source current proportion due to the fixed color gamut through the dynamic color gamut.

The invention discloses a color-changeable TPU (thermoplastic polyurethane) film as well as a preparation method and application thereof, and belongs to the technical field of intelligent high polymer materials. The TPU film comprises a thermoplastic polyurethane (TPU) matrix, a color change response system, an interface stabilizer and a functional additive. The color-changing response system comprises at least two different types of color-changing materials, so that multiple environmental stimulus response color changing, such as temperature and light dual response, is realized. The film has the characteristics of sensitive color change response, high color contrast, good color change reversibility, excellent fatigue resistance, high mechanical property retention rate and the like. Through formula and process optimization, the technical problems that a single color-changing material is insensitive in response, low in color-changing contrast ratio, poor in durability and poor in compatibility with a TPU matrix are solved. The TPU film prepared by the invention can be widely applied to the fields of intelligent wearing, safety anti-counterfeiting, dynamic decoration, sensor indication and the like.

The invention relates to the technical field of organic electroluminescence, in particular to a fused heterocyclic compound and an organic electroluminescence device containing the compound. The compound has a characteristic double-boron-nitrogen aromatic fused structure, and rigid substituents such as phenanthrene amine, naphthylamine, anthramine and fluoranthene amine are introduced to the periphery of the compound, so that a molecule has a relatively high T2 energy level, the T1 energy level is remarkably reduced, T2 is slightly higher than S1 energy level, T2-T1 internal conversion is inhibited, T2-S1 exciton up-conversion is promoted, the exciton utilization rate is increased, and the luminous efficiency is remarkably improved. An OLED device prepared from the compound has the advantages of low starting voltage, high color purity, high efficiency and excellent service life, meets the requirements of a high-performance display panel on a luminescent material, and has a good application prospect.

The application discloses a short-process printing process of polyester-cotton blended fabric, which comprises screen printing by using active disperse dyes containing double active groups and steaming by using alcohol vapor; the double active groups include hydroxyethyl sulfone sulfate group and CH2CH(OH)CH2X (X is Br or Cl); the CH2CH(OH)CH2X can be converted into an epoxy group under alkaline conditions and can react with the alcohol vapor during the steaming process to realize the cross-linking between dye molecules, so that the effects of improving the fixation efficiency and shortening the process flow are achieved, and then the printed fabric with high color depth and high color fastness is obtained.

The invention relates to the technical field of water quality detection, in particular to a wastewater chroma removal rate measuring method, device and equipment and a storage medium. The fitting curve is generated by obtaining the first absorbance and the first concentration data set, basic data is provided for subsequent fitting curve generation, a scientific basis is provided for colorimetric analysis, and the method can also be used for calculating the chromaticity removal effect. In combination with a fitting curve, a second absorbance data set and a removal rate calculation formula, the efficient adsorption time with the highest chromaticity removal rate can be determined, and the problem that the adsorption time is difficult to accurately measure is solved; in a water tank system of grease sample constant-temperature Raman detection equipment, a periodic concentration calculation formula is constructed according to efficient adsorption time and the number of parallel filter elements, the current concentration is calculated in combination with a real-time filtration cycle period, and the chromaticity removal rate is obtained, so that the chromaticity removal effect of a sequencing batch water inlet treatment system is accurately evaluated, and a reliable basis is provided for system optimization.

The invention provides a color difference detection method and system based on a cloth inspecting machine, a medium and electronic equipment. The color difference detection method comprises the following steps: acquiring a cloth image of a cloth inspecting machine; processing the cloth image to obtain a cloth area color; performing color space conversion on the color of the cloth area to obtain LAB color data of the color of the cloth area; performing difference comparison on the plurality of LAB color data to obtain a color difference detection result; wherein the process of obtaining the LAB color data of the color of the cloth area comprises the following steps: performing linearization processing on the color of the cloth area to obtain linearized color data; and performing normalization and nonlinear transformation processing on the linearized color data to obtain LAB color data of the color of the cloth area. The color difference detection method has high color difference detection accuracy.

This invention discloses a dyeing method for a PET aluminized film, which exhibits high color fastness and good steam resistance. The dyeing method for a PET aluminized film includes the following steps: Step (1), etching the PET aluminized film using tetramethylammonium hydroxide; Step (2), dyeing the PET aluminized film obtained in step (1) using an acidic medium dye; Step (3), fixing the color of the PET aluminized film obtained in step (2) using a color-fixing agent; Step (4), surface treating the PET aluminized film obtained in step (3) using a coating agent, followed by drying.

The utility model relates to the technical field of LED lamp beads, in particular to a colorful LED lamp bead with a high color rendering index. The LED lamp bead comprises a base plate and an installation plate, a plurality of lamp bead bodies are installed on the surface of the base plate, a plurality of tooth grooves are formed in the surface of the base plate, a plurality of tooth plates are fixedly connected to the surface of the installation plate, the tooth plates are in sliding connection with the inner walls of the tooth grooves of the base plate, and a U-shaped frame is fixedly connected to the surface of the base plate. The cooperation of the tooth grooves and the tooth plates has uniqueness and certainty, it is guaranteed that the base plate and the installation plate can be accurately located at the preset position when connected, the situation that due to the inaccurate installation position, the lamp bead bodies are not arranged in order, and then the overall lamplight effect is affected is avoided, the uniformity and consistency of light emitting of the lamp bead bodies are guaranteed, and the service life of the lamp bead bodies is prolonged. The structure composed of the U-shaped frame, the fixing rod, the clamping plate and the torsional spring plays a role in automatic clamping, so that the clamping plate is tightly pressed on the mounting plate, and stable clamping force is formed.

The application discloses a systematic color SVG icon dataset construction method and device, and the method comprises the following steps: collecting SVG files, and performing data cleaning on the collected SVG files to obtain initial files; wherein the SVG files comprise SVG icons of different categories, and the initial files are color SVG files; performing standardization processing on the boundary box size of the initial files to obtain sample files; classifying the sample files, and dividing training set, verification set and test set according to the classified sample files to obtain SVG datasets. The application can improve the construction quality of color SVG datasets.

An image sensor (20) comprises a pixel array having a plurality of basic units, the basic unit comprising a first pixel (111), a second pixel (112) and a third pixel (113), the first pixel (111) being a short-wave band light pixel, the second pixel (112) being a middle-wave band light pixel; the pixel array comprises a color filter layer (120), a first substrate layer (130), a medium layer (140) and a second substrate layer (150) in a vertical direction; a first recess (137) extending to the first substrate layer (130) and corresponding to the first pixel (111) and a second recess (138) corresponding to the second pixel (112) are formed on the front surface of the first substrate layer (130), and the depth of the first recess (137) is greater than the depth of the second recess (138). The image sensor can improve the accuracy of color image imaging.

The invention discloses a display terminal color depth testing method and related equipment, and relates to the technical field of display terminal testing, and the method comprises the steps: obtaining a plurality of candidate color depth levels supported by a to-be-tested display terminal; respectively converting the plurality of candidate color depth levels into respective corresponding gray scale ranges; generating a color depth test picture based on all the gray scale ranges obtained through conversion; a test signal containing the color depth test picture is sent to the display terminal to be tested for display; and determining the highest color depth level actually supported by the to-be-tested display terminal according to the visual distinguishable condition between the display areas in the picture obtained after the to-be-tested display terminal displays the received test signal. According to the method, the color depth levels of the candidate colors supported by the display terminal to be tested are obtained at a time, and the color depth test picture containing the multiple corresponding display areas is generated, so that the problem of low efficiency caused by the fact that signals must be generated, switched and displayed step by step in an existing serialization test method is directly solved.

The present invention relates to a method for driving an electro-optical display. More specifically, the present invention relates to a driving method for reducing pixel edge artifacts and / or image residue in an electro-optical display. The present invention provides a waveform for driving an electrophoretic display which includes a color filter between the viewer and the electrophoretic medium. Because the waveform results in each image update passing through a white state before the final state, the overall color gamut is wider and more predictable overall than simply driving an electrophoretic display which includes a color filter with a waveform used for a black and white grayscale display.

The present invention relates to a double-layered, two-color erasable thermal paper and a preparation method thereof, and relates to the technical field of printing consumables. The two-color erasable thermal paper of the present invention comprises a protective layer, a thermal coating, and a substrate arranged in sequence from top to bottom; the thermal coating comprises a red thermal coating and a black thermal coating arranged in sequence from top to bottom. The red thermal coating comprises the following raw materials: a color developer A, a red thermal dye, a cosolvent A, an erasing aid A, an epoxy resin adhesive, a polyamide curing agent, and a zinc oxide filler; the black thermal coating comprises the following raw materials: a color developer B, a black thermal dye, a cosolvent B, an erasing aid B, an epoxy resin adhesive, a polyamide curing agent, and a zinc oxide filler. The two-color erasable thermal paper of the present invention has a high color density, does not overlap and bleed after repeated erasure, can be completely erased, and can be repeatedly erasable.

The invention relates to the technical field of liquid crystal display devices, and particularly discloses a nanofiber-stabilized double-color liquid crystal coating display device which comprises five layers of structures sequentially arranged, the first layer of structure is a polyethylene glycol terephthalate film with the single side loaded with indium tin oxide; the second layer structure is a first color liquid crystal coating, the first color liquid crystal coating comprises an electrostatic spinning network A and a mixed coating A coating one side of the electrostatic spinning network A, and the mixed coating A is located between the electrostatic spinning network A and the polyethylene glycol terephthalate film; the third layer structure is an ultrathin film; the fourth layer structure is a second color liquid crystal coating, the second color liquid crystal coating comprises an electrostatic spinning network B and a mixed coating B coating one side of the electrostatic spinning network B, and the mixed coating B is located between the electrostatic spinning network B and the ultrathin film; and the fifth layer structure is a glass substrate applying a TFT technology. The display device has the advantages of being low in cost, suitable for large-scale mass production and high in color gamut.

The invention belongs to the technical field of LEDs, and particularly relates to a double-cup double-color high-color-rendering LED light source and a packaging technology thereof.The double-cup double-color high-color-rendering LED light source comprises a packaging support, a first cup body and a second cup body, the first cup body and the second cup body are arranged on the packaging support, and the first cup body and the second cup body are both PCT or EMC bowl cups; a blue light wafer is arranged in the first cup body, the dominant wavelength of the blue light wafer is 450-460 nm, a purple light wafer is arranged in the second cup body, and the peak wavelength of the purple light wafer is 405-415 nm. The method at least has the following advantages that the photobiological characteristics are highly matched with sunlight, the super-high color rendering performance is similar to the natural spectrum, and the performance stability, the visual comfort and the application adaptability in the wide color temperature adjusting range are excellent.

The invention relates to high-color-fastness emerald blue ink and a preparation method thereof. The emerald blue ink is prepared from the following raw materials in percentage by mass: 20 to 30 percent of color paste, 20 to 30 percent of glycerol, 5 to 10 percent of waterborne polyurethane, 3 to 6 percent of closed curing agent, 1.5 to 2.5 percent of surfactant, 0.1 to 0.3 percent of bactericide and the balance of deionized water, wherein the color paste is prepared from the following raw materials in percentage by mass: 20 to 25 percent of disperse blue 60, 10 to 15 percent of glycerol, 5 to 10 percent of sodium lignin sulfonate, 4 to 8 percent of styrene-maleic acid copolymer, 4 to 8 percent of acrylic resin, 5 to 10 percent of C12-14 secondary alcohol polyoxyethylene ether, 0.1 to 0.3 percent of bactericide and the balance of deionized water. The color of the ink is fresh and beautiful turquoise blue, the color fastness of the ink is high, and the ink has good market application prospects.

The application provides a method for calculating the duty cycle of white light color temperature when RGBY four-way mixed light is generated, which comprises the following steps: four color points of RGBY form a quadrilateral on a CIE 1931 chromaticity diagram; an intersection A1(x A1 , y A1 ) of the straight line and the straight line is obtained; two intersections of the straight line and the other two straight lines are obtained, and only one of the two intersections is located in the interior of a triangle formed by three color points of three-way light used for mixed light, and the one is selected as A2(x A2 , y A2 ); a line segment connecting A1(x A1 , y A1 ) and A2(x A2 , y A2 ) is divided into n nodes, the corresponding duty cycles are calculated by using the three color points of the three-way light used for mixed light, and the duty cycle of the remaining one-way light is calculated by using a two-way mixed light algorithm; the highest color rendering index duty cycle is selected from the obtained n groups of duty cycles; and the relationship between the duty cycle of the four-way light and the color temperature is fitted into a function. The method can effectively reduce the product cost and improve the use value of the RGB mixed light product.

The invention discloses a color image vision enhancement method. The method comprises the following steps: acquiring an original color image and separating three color components; a Laplace operator is used to sharpen each component image, a Sobel operator is used to extract horizontal and vertical gradients respectively, the gradients are transformed based on a Gaussian function and normalization processing is completed, natural logarithm operation is carried out on an original component image and a normalized gradient image respectively, two obtained logarithm domain images are added and then exponent recovery is carried out, and a final component image is obtained. Restoring the component image to a gray domain, and performing Sigmoid function transformation on the restored component image; and calculating the global maximum and minimum values of the Sigmoid enhanced images of the three component images, performing linear stretching, and finally combining the stretched color component images to obtain a visual enhanced color image. According to the invention, the permeability of the color image can be improved, the brightness of the color image under the condition of low illumination can be improved, and the color effect matched with the visual habit of human eyes can be kept.

The present invention relates to a colored photosensitive resin composition, a color filter comprising the same, and an image display device, the colored photosensitive resin composition comprising a colorant, an alkali-soluble resin, a photopolymerizable compound, a photopolymerization initiator, and a solvent, the colorant comprising a compound represented by Chemical Formula 1, the alkali-soluble resin is formed by polymerizing a compound represented by a chemical formula 3 and a compound represented by a chemical formula 4. The present invention has the effects of being able to achieve high color reproducibility even at a relatively low weight concentration (PWC) of a colorant and being able to be used as a thin display, being able to be cured at a low temperature and having excellent reliability, and exhibiting excellent sensitivity such that developability and adhesion are improved, and being able to be used as a thin display. The development stain generation is inhibited, and the solvent resistance is further improved.