1254 results about "Colored white" patented technology

The invention relates to the technical field of image recognition, and discloses a food freshness detection method and system based on image recognition, and the method comprises the steps: collecting an initial image, carrying out the white balance correction through a white reference card, and obtaining a corrected image with an accurate color; performing target area segmentation on the corrected image, extracting a food main area and eliminating background interference; pixel sampling is carried out on the main area image, the main area image is converted to Lab, HSV and RGB color spaces, and redness, yellowness, brightness, hue angle and red-green ratio are extracted to form a multi-dimensional color feature set; establishing a difference feature vector based on the feature set and a preset standard sample, and comparing the deviation degrees of the target food and the standard sample on the multi-dimensional color features; and finally, judging the freshness grade of the food according to the deviation degree. According to the invention, lossless and rapid food freshness grading detection is realized.

The invention provides a chip lamp bead and a lamp, and relates to the technical field of lamp beads, the chip lamp bead comprises a packaging body and a lamp bead body packaged in the packaging body; wherein the lamp bead body comprises a substrate, and a first luminous body, a second luminous body and a control chip which are arranged on the substrate. The white light illuminant and the illuminant of the preset color system are integrated in one lamp bead, different lamp beads and different colors of the lamp beads can be controlled in a unified mode through the control chip, and the functionality and flexibility of the illumination and decoration lamp system are improved. On the basis of the white LED, the color temperature adjustment of the preset color system from the warm color tone to the cold color tone can be realized by adjusting the proportion of white LEDs (such as warm white and cold white) with different color temperatures. Moreover, the color of single-color blue light is purer, the color of single-color white light or warm white light is more consistent, and the yield can be increased to 99% or above.

The invention discloses a backlight control method, display equipment and a computer readable storage medium, and relates to the technical field of liquid crystal display, the backlight control method is applied to a backlight system, the backlight system comprises an LED backlight source, the LED backlight source comprises a three-primary-color light-emitting source and a white light-emitting source, and the method comprises the steps of obtaining a to-be-displayed target image, determining a three-primary-color backlight gray value of the three-primary-color light emitting source based on the target image; a white backlight gray value is determined based on the three-primary-color backlight gray value, and the white backlight gray value is in positive correlation with the three-primary-color backlight gray value; and driving the three-primary-color light-emitting source to emit light based on the three-primary-color backlight gray value, and driving the white light-emitting source to emit light based on the white light-emitting source, so that the LED backlight source provides backlight. The light emitting efficiency of the backlight source is improved, and the brightness and the color gamut are considered on the basis of low energy consumption.

The invention discloses a color temperature correction method and device of a liquid crystal display system and a storage medium. The method comprises the following steps: determining tristimulus values of original white pixel points of the system in a CIE 1931XYZ color space according to normalized spectral power distribution of a white light backlight source of the liquid crystal display system and a transmittance spectrum of a three-primary color filter of a color film; determining a target RGB color space and a target color temperature, and constructing a color space conversion matrix from the target color space to an XYZ color space; converting the tristimulus values of the original white pixel points of the system in the XYZ color space into the three-primary color channel values of the target white pixel points under the target color temperature in the target color space by using the inverse matrix of the color space conversion matrix; and driving the system to display white according to the three-primary color channel value of the target white pixel point. According to the scheme, the color temperature correction of the liquid crystal display system is realized through a method of combining measurement and theoretical calculation, and the color temperature correction efficiency is improved.

To provide a new application for recycled resin obtained from PET bottle caps.SOLUTION: The present disclosure relates to a multilayer molded container comprising at least: an inner layer containing a pigment 1 and a recycled resin obtained using PET bottle caps; and an outer layer containing a white pigment 2 and a resin 2.SELECTED DRAWING: None

Provided is a recording liquid set including: a pretreatment liquid containing a cationic component, a resin, and water; and an aqueous white inkjet ink containing a white-colored colorant, an organic solvent, and water, wherein the aqueous white inkjet ink has a static surface tension of 20 to 40 mN / m at 25 °C, the aqueous white inkjet ink has a static surface tension at 25 °C that is greater than a static surface tension at 25 °C of the pretreatment liquid, and an amount of the white-colored colorant in the aqueous white inkjet ink is 15 to 100 times an amount of the cationic component in the pretreatment liquid.

To provide a white ink composition for water-based inkjet printing that achieves high white image density in a printed object and exhibits high redispersibility after pigment settling, storage stability, and discharge stability.SOLUTION: There is provided a white ink composition for water-based inkjet printing that contains: a titanium oxide pigment; a polymer dispersing agent including an anionic group-containing resin; a surfactant; and water. The ink composition contains 4.0 pts.mass to 16.0 pts.mass of the titanium oxide pigment relative to 100 pts.mass of the ink composition. The titanium oxide pigment includes titanium oxide and a surface treatment agent for treating the surface of the titanium oxide. The titanium oxide pigment satisfies the condition that the ratio of the mass of the titanium oxide to the total mass of the surface treatment agent is 90:10 to 80:20. The weight average molecular weight of the anionic group-containing resin is 5,000 or more and 50,000 or less. The anionic group-containing resin content is 7.0 pts.mass or more relative to 100 pts.mass of the titanium oxide pigment.SELECTED DRAWING: None

To more properly perform printing onto a medium for transfer.SOLUTION: A printer 12 performs printing with an ink jet system onto a transfer medium 50 to be a medium of a film for transfer. The printer includes: a head section 102 which discharges ink to the transfer medium 50; a main scanning driving section 108 which causes the head section 102 to perform a main scanning operation; and a sub-scanning driving section 110 which causes the head section 102 to perform a sub-scanning driving section. The head section 102 has a head 202 for color to be a first ink jet head for discharging color ink and a head 204 for white ink to be a second ink jet head disposed by shifting a position in a sub-scanning direction from the head 202 for color.SELECTED DRAWING: Figure 2

The invention discloses a color cast correction method and device for white picture brightness compensation and a storage medium. The color cast correction method and device are used for performing dual correction on a display screen after Demura compensation is performed on the basis of a white picture. The method comprises the following steps: collecting regional images of a target screen under different exposure times, and calculating to obtain a brightness data mean value of a plurality of regional images; establishing a mapping relation according to the brightness data mean value and the actual brightness data of the regional image; calculating Euclidean distances from the centers of the plurality of regional images to the center of the target screen; constructing a brightness-exposure response function according to the mapping relation and the Euclidean distance to obtain a brightness-exposure characteristic matrix; correcting the brightness data mean value for the first time by using the brightness-exposure characteristic matrix to obtain first corrected brightness data; constructing a chromaticity-brightness correction function of each pixel point in the target screen; and correcting the first corrected brightness data for the second time by using the chroma-brightness correction function to obtain second corrected brightness data.

METHOD FOR CONTROLLING A LIGHT EMITTING DIODE MIXER TO GENERATE WHITE LIGHT FROM A PROJECTOR, SYSTEM Method for controlling light emitted by a projector comprising at least two groups of LEDs, each group comprising at least one LED, of which a first LED has a warm color temperature (CCTWW) and a second LED has a cool color temperature (CCTCW), said method comprising: Determination (DET1) of a plurality of corrected setpoint temperature (CCTCON_C(i)) from the control of a plurality of white light emissions from the projector at a predefined power of the LEDs; Calculation (K1) of coefficients called "warm white" (WWi) and "cool white" (CWi); Generation (GEN1) of a second model (M2) allowing the expression of a warm white coefficient (WWi) to be controlled as a function of the measured color temperature (CCTS); Control (PIL1) of the first group of LEDs and the second group of LEDs. Figure for the abbreviation: Fig. 1

The invention relates to white solder mask ink based on hydrogenated bisphenol A epoxy resin and a preparation method of the white solder mask ink. The white solder mask ink comprises a component A and a component B, the component A is prepared from the following ingredients in parts by mass: 10 to 30 parts of alkali-soluble hydrogenated bisphenol A epoxy resin, 5 to 10 parts of polyurethane resin, 1 to 10 parts of active monomers, 5 to 20 parts of modified boron nitride, 1 to 5 parts of photoinitiators and 10 to 50 parts of solvents; the component B comprises the following components in parts by mass: 1-10 parts of bisphenol A epoxy resin, 1-10 parts of an auxiliary agent and 1-10 parts of a solvent; wherein the modified boron nitride is a product obtained by reacting boron nitride with a silane coupling agent, urethane acrylate and reactive hindered amine. According to the present invention, the good anti-yellowing ability is achieved, the excellent mechanical strength and the excellent stability are provided, the defects in the prior art are overcome, and the important significance is provided for the further development and the application of the solder mask ink.

To provide a serial type liquid discharge device which can continuously perform coating of a pretreatment liquid, primer formation by white ink, and printing by color ink, by an integral device.SOLUTION: A liquid discharge device includes a plurality of heads 10, a plurality of carriages 20, and conveyance means for intermittently conveying a medium 50 in a sub-scanning direction in accordance with scanning of the head 10, wherein the head 10 has a first head 11 for discharging a pretreatment liquid 31, a second head 32 for discharging white ink 32 and a third head 33 for discharging color ink 33, the pretreatment liquid 31, the white ink 32 and the color ink 33 are arranged in this order in a dischargeable manner, when nozzle resolutions of the first head to the third head are represented by N1 to N3, they satisfy relations of 1≥N2≥N3, and N1 / N3=m, N2 / N3=n and m≥n (m and n are integers of 1 or more), and when a line feed amount is represented by W, and arrangement intervals of each of the heads are represented by L1 and L2, they satisfy relations of L1=W×p, and L2=W×q (p and q are integers of 0 or more).SELECTED DRAWING: Figure 1

The utility model discloses a crystal label printer which comprises a printer main body and release paper, the printer main body is provided with a printing area for the release paper to pass through, and the printer assembly moves on the printer main body and sprays a pattern layer on the release paper. The printing vehicle assembly comprises a first spray head used for spraying a self-adhesive water layer on release paper, a second spray head used for spraying a white ink layer, a third spray head used for spraying a color ink layer, and a fourth spray head used for spraying a curing gloss oil layer and a gold stamping gloss oil layer. Two film covering assemblies are sequentially arranged at the position, located at the output end of the printing area, of the printer body and used for stamping a gold film on the gold stamping gloss oil layer and covering a release paper pattern with a positioning film after the gold film is stamped, and the gold film is stamped on the gold stamping gloss oil layer through the film covering assembly on the front side to achieve the pattern gold stamping effect. The pattern gilding effect can be achieved without secondary operation after pattern transfer printing, and meanwhile the pattern gilding area can be accurately arranged on the pattern.

The invention discloses a surgical foreign matter leaving monitoring method and device, computer equipment and a storage medium. Comprising the steps that when an operation starts, the gauze number is initialized; acquiring to-be-monitored video data; inputting into a gauze identification model to carry out gauze target identification; when the identification result is that the gauze target is identified, gauze color discrimination is carried out in a gauze color discrimination model to obtain a discrimination result; judging whether the color of the gauze target is white or not; if yes, adding one to the gauze number to update the gauze number; judging whether the current operation is finished; if yes, when the gauze quantity is not equal to zero, giving a gauze remaining alarm; if not, judging whether the color of the gauze target is red or not; if yes, subtracting one from the gauze number to update the gauze number, and judging whether the current operation is finished or not. According to the invention, automatic identification, positioning and counting of the gauze can be realized, and the gauze leaving problem in the operation process is solved.

The invention relates to a colored radiation refrigeration coating and a colored cooling coating, the colored radiation refrigeration coating comprises a white prime coating and a colored surface coating which are matched for use, the sunlight reflectivity of a white bottom layer formed by the white prime coating at the wave band of 0.3-2.5 microns is greater than or equal to 95%, and the sunlight reflectivity of the colored surface coating at the wave band of 0.3-2.5 microns is greater than or equal to 95%. The atmospheric window emissivity at the wave band of 8-13 [mu] m is greater than or equal to 95%; the colored surface coating comprises a first filler, yttrium gallium garnet and first resin, the yttrium gallium garnet is doped with chromium, and the mass fraction of the chromium in the yttrium gallium garnet is 5%-15%. A color cooling coating formed by the color radiation refrigeration coating is bright in color, the sunlight reflectivity at the wave band of 0.3-2.5 microns is larger than or equal to 82%, the atmospheric window emissivity at the wave band of 8-13 microns is larger than or equal to 95%, and the color radiation refrigeration coating has an excellent cooling effect.

Lighting system having visible-light source including semiconductor light-emitting devices arranged for generating plurality of visible-light emissions having range of color points including cool to very cool white color point for daytime and warm to very warm white color point for nighttime. Optical system arranged for causing some visible-light emissions to have range of beam widths including relatively wide and narrow beam widths. Mounting system causing range of beam directions. Control system causing visible-light emissions to include daytime configuration having cool to very cool white color point and relatively wide beam width, and nighttime configuration having warm to very warm white color point and relatively narrow beam width. Daytime configuration includes control system for causing visible-light emissions to include lateral- or up-light emissions, promoting relatively high equivalent melanopic lux. Nighttime configuration includes control system for causing visible-light emissions to include down-light emissions promoting relatively low equivalent melanopic lux.

A printing apparatus includes a pretreatment-liquid applier, a white-ink applier, a color-ink applier, a colorless-liquid applier, and circuitry. The pretreatment-liquid applier applies a pretreatment liquid to a pretreatment area in a permeable print target. The white-ink applier applies a white ink including an organic solvent to an image forming area in the pretreatment area to form a base layer. The organic solvent seeps into a seepage area around the image forming area. The color-ink applier applies a color ink to the image forming area to form a color image. The colorless-liquid applier applies a colorless liquid including water to a colorless-liquid area including at least a part of the seepage area. The circuitry changes the colorless-liquid area according to a timing of applying the colorless liquid to the colorless-liquid area in a process of applying the pretreatment liquid, the white ink, and the color ink to the permeable print target.

To provide lighting equipment that does not impair outer appearance.SOLUTION: Lighting equipment includes an equipment body attached to an attaching part, and a light source unit attached to the equipment body, having an LED module for blue color for emitting blue color light and an LED module for white color for emitting white color light. The light source unit includes: a frame for holding the LED module for blue color and the LED module for white color; a scatter plate provided so as to extend in one direction with respect to the frame for guiding the light emitted from the LED module for blue color; and a diffusion plate provided so as to be inclined from a scatter plate side for guiding the light emitted from the LED module for white light, which includes a light blocking part extending from the end part on the scatter plate side toward the LED module for blue color for blocking the light from the LED module for blue color toward the scatter plate.SELECTED DRAWING: Figure 8

A transparent roof panel assembly for a vehicle roof comprises a panel and a light source. The panel comprises a first transparent layer having a first main surface and a second main surface opposite the first main surface, a second transparent layer arranged adjacent to the first main surface and a light outcoupling pattern arranged between the first main surface of the first transparent layer and the second transparent layer. The pattern is configured for scattering at least a part of the light from the light source such that light exits the first transparent layer through the second main surface. The pattern comprises scattering particles arranged in a transparent carrier. The particles are pigments in a white ink having a concentration of 0.01-1.5% by weight. The pattern may form an image having a contour formed by a full surface printing, a width being similar to dots forming the image.

The embodiment of the invention relates to the field of color matching, and discloses a color matching method and tool for pigment. The method comprises the following steps: acquiring a first brightness value of a target color; based on a black pigment and a white pigment, blending a first formula pigment according to a preset proportion corresponding to the first brightness value; wherein the brightness of the first formula pigment is the first brightness value; blending a second formula pigment based on the basic hue pigment; wherein the brightness of the second formula pigment is the first brightness value, and the hue of the second formula pigment is the hue of the target color; and mixing the first formula pigment and the second formula pigment to obtain the final formula pigment. Therefore, through the scientific color matching method, the color matching accuracy and efficiency of color matching personnel are improved.

Lighting system having visible-light source including semiconductor light-emitting devices arranged for generating plurality of visible-light emissions having range of color points including cool to very cool white color point for daytime and warm to very warm white color point for nighttime. Optical system arranged for causing some visible-light emissions to have range of beam widths including relatively wide and narrow beam widths. Mounting system causing range of beam directions. Control system causing visible-light emissions to include daytime configuration having cool to very cool white color point and relatively wide beam width, and nighttime configuration having warm to very warm white color point and relatively narrow beam width. Daytime configuration includes control system for causing visible-light emissions to include lateral- or up-light emissions, promoting relatively high equivalent melanopic lux. Nighttime configuration includes control system for causing visible-light emissions to include down-light emissions promoting relatively low equivalent melanopic lux.

Design 1: a pallet block or block for a pallet, respectively, consisting of plastic material, preferably produced in two parts being connected, for example welded or clipped, the block being coloured in white, black or in another colour;Design 7: pallet with pallet blocks installed, preferably nailed, in a pallet, in particular a wooden pallet; the pallet blocks consist of a plastic material, are preferably produced in two parts being connected, for example welded or clipped, and coloured in black, grey, or in another colour; the wood grain of the battens is an exemplary presentation and representative for other wood grains; Design 8: pallet with pallet blocks installed, preferably nailed, in a pallet, in particular a wooden pallet; the pallet blocks consist of a plastic material, are preferably produced in two parts being connected, for example welded or clipped, and coloured in black, grey, or in another colour; the wood grain of the battens is an exemplary presentation and representative for other wood grains.

The invention relates to the field of temperature-sensitive materials, in particular to a thermal management fiber membrane and a preparation method thereof. The heat management fiber membrane comprises a base body layer, a color changing layer and a color matching layer which are sequentially arranged in a stacked mode. And the matrix layer is a fiber membrane made of a spinning material. And the color-changing layer is formed by curing a water-soluble adhesive doped with thermochromic microcapsules. The thermochromic microcapsule is gradually and reversibly converted into a white state from a black state along with the rise of the temperature. And the color matching layer is formed by coating photonic crystal emulsion. The thermochromic microcapsule endows the thermal management fiber membrane with a temperature-sensitive discoloration capability so as to adjust the heat absorption and heat dissipation capability at different temperatures. The photonic crystals endow the thermal management fiber membrane with rich colors. The thermochromic microcapsule is attached to the surface of the fiber membrane through the water-soluble adhesive, so that the response speed of color change of the thermochromic microcapsule is increased, and wall material damage caused when the thermochromic microcapsule is doped in a spinning solution for spinning can be prevented, so that the performance of the thermal management fiber membrane is optimized, and the service life of the thermal management fiber membrane is prolonged.

The embodiment of the invention discloses a black and white screen anomaly detection method and device, equipment and a storage medium, and the method comprises the steps: periodically obtaining a game page graph, dividing the game page graph into a preset number of detection regions, and determining the coordinates of the pixel center point of each detection region; calculating a color value of the pixel center point according to the coordinate of the pixel center point and a color value calculation function; whether the color values of the pixel center points are consistent or not is compared, under the condition that the color values are consistent, the color values are compared with a black value and a white value to determine page types, and the page types comprise a white page type, a black page type or a non-black-and-white page type; and when the page type is a white page type or a black page type, determining that the monitoring result is screen abnormity, and when the page type is a non-black-and-white page type, determining that the monitoring result is screen normal. The black and white screen anomaly detection efficiency and accuracy are improved.

The invention discloses a crystal label printer and a control method thereof.The crystal label printer comprises a printer body and release paper, the printer body is provided with a printing area for the release paper to pass through, and the printer assembly moves on the printer body and sprays a pattern layer to the release paper. The printing vehicle assembly comprises a first spray head used for spraying a self-adhesive water layer on release paper, a second spray head used for spraying a white ink layer, a third spray head used for spraying a color ink layer, and a fourth spray head used for spraying a curing gloss oil layer and a gold stamping gloss oil layer. Two film covering assemblies are sequentially arranged at the position, located at the output end of the printing area, of the printer body and used for stamping a gold film on the gold stamping gloss oil layer and covering a release paper pattern with a positioning film after the gold film is stamped, and the gold film is stamped on the gold stamping gloss oil layer through the film covering assembly on the front side to achieve the pattern gold stamping effect. The pattern gilding effect can be achieved without secondary operation after pattern transfer printing, and meanwhile the pattern gilding area can be accurately arranged on the pattern.

The invention discloses a brightness compensation method and a brightness compensation device of a display panel and a display device. The brightness compensation method of the display panel comprises the following steps: acquiring brightness data of a white picture of a preset gray scale and brightness data of a monochromatic picture of a binding point gray scale displayed by the display panel after voltage drop compensation; performing partition processing on the brightness data of the white picture to determine a white light brightness change trend of the display panel after voltage drop compensation, and performing partition processing on the brightness data of the monochromatic picture to determine a monochromatic light brightness change trend of the display panel after voltage drop compensation; determining the monochromatic target brightness of the binding point gray scale of each display partition of the display panel by comparing the white light brightness change trend and the monochromatic light brightness change trend after the voltage drop compensation; and according to the monochromatic target brightness of the binding point gray scale of each display partition, performing brightness compensation on the sub-pixel of the corresponding color in each display partition. According to the technical scheme provided by the invention, the display effect of the display panel is improved.

A lighting fixture appears as a skylight and include a sky-resembling assembly producing light having a first color point and a plurality of sun-resembling assemblies producing light having a second color point, with dedicated optical assemblies and / or light sources. First and second light engines of the fixture provide different color points, peak light intensity angles, far-field light distribution characteristics, and / or circadian stimulus values. A sky-resembling assembly includes separately-controllable strings of connected LEDs, including a first string having bluish LEDs and greenish LEDs, and a second string incorporating white LEDs. The second color point is more yellow-ish white than the first color point.

The invention discloses a method for analyzing porosity and pore size distribution of a gypsum plaster board, which comprises the following steps of: cutting the gypsum plaster board, painting a dark-color foaming agent on a cutting surface, and shooting to obtain an image of the cutting surface painted with the dark-color foaming agent for coloring; the cutting surface image is converted into a grayscale image, binarization processing is carried out based on a threshold value, a binary image represented by black and white pixels is obtained, the black pixels in the binary image represent cells in the gypsum plaster board core material, and the white pixels represent solid bases in the gypsum plaster board core material; the porosity calculation is carried out by using the number of black pixels as the cell area in the gypsum plaster board core material and the number of white pixels as the solid base area in the gypsum plaster board core material, so that the two-dimensional apparent porosity of the gypsum plaster board core material is obtained, then edge detection, searching and outline drawing are carried out, and the cell area, number and position data are obtained. And further obtaining a pore size distribution condition result of the cells. The porosity and pore size distribution condition of the gypsum plaster board can be rapidly and accurately analyzed through the convenient method, and the method is suitable for being applied to various occasions, easy to operate, convenient, rapid, efficient and low in cost.

The invention relates to the technical field of bridge deck monitoring, and particularly discloses a wet joint monitoring system for a prefabricated bridge deck, a composite beam prefabricated member comprises a bottom shear nail, a top shear nail, a PBL perforated plate and a vertical trapezoidal key tooth wet joint, and the surface of the composite beam prefabricated member is brushed with white interior wall paint before a test is started; positioning grids are formed by using ink lines to serve as monitoring points, stress data and displacement data of the monitoring points on the surface of the composite beam prefabricated part are obtained and used for obtaining stress data and displacement data of the monitoring points on the surface after a load is applied, a change curve is drawn, damage variables are constructed according to the change curve, and recognition and early warning are conducted according to the damage variables. According to the method, high-precision and generalizable stress-deformation data can be obtained, and a solid foundation is laid for subsequent numerical simulation, health monitoring and remote maintenance.