75results about How to "Wide range of colors" patented technology

A photoluminescence color display comprises a display panel that displays red, green and blue pixel areas, an excitation source operable to generate excitation radiation for operating the display, and a photoluminescence color-element plate. The color-element plate comprises at least one photoluminescence material, such as a phosphor material or quantum dots, that is operable to emit light corresponding to red, green and blue pixel areas of the display in response to said excitation radiation. Additionally, the photo-luminescence color display comprises a wavelength selective filter that is provided between the color-element plate and the excitation source. The filter has a transmission characteristic that allows the passage of excitation radiation from the excitation source to excite the at least one photoluminescence material whilst preventing the passage of photoluminescence light back to the excitation source thereby prevent cross contamination of light among the different pixel areas of the display.

Interference pigment flakes and foils are provided which have color shifting properties. The pigment flakes can have a symmetrical coating structure on opposing sides of a reflector layer, can have an asymmetrical coating structure with all of the layers on one side of the reflector layer, or can be formed with encapsulating coatings around a core reflector layer. The coating structure of the flakes and foils includes a reflector layer, a dielectric layer on the reflector layer, and a titanium-containing absorber layer on the dielectric layer. The pigment flakes and foils exhibit a discrete color shift so as to have a first color at a first angle of incident light or viewing and a second color different from the first color at a second angle of incident light or viewing. The pigment flakes can be interspersed into liquid media such as paints or inks to produce colorant compositions for subsequent application to objects or papers. The foils can be laminated to various objects or can be formed on a carrier substrate.

The present invention relates to electrochromic polymeric solid films, manufacturing electrochromic devices using such solid films and processes for making such solid films and devices. The electrochromic polymeric solid films of the present invention exhibit beneficial properties and characteristics, especially when compared to known electrochromic media. The electrochromic polymeric solid films are transformed in situ from a low viscosity electrochromic monomer composition by exposure to electromagnetic radiation, and in so doing minimum shrinkage occurs. The electrochromic polymeric solid films of the present invention also perform well under prolonged coloration, outdoor weathering and all-climate exposure, and provide an inherent safety aspect not known to electrochromic media heretofore.

An improved method of forming a display is described. The method includes the operation of forming a cell in an array of cells. Walls of the cell are used to confine both a color filter and a display material prior to sealing the cell. The method is particularly useful when jet printing particulate display materials and filter materials to form pixels in a display.

To provide a green phosphor with high conversion efficiency of blue of near-ultraviolet light and excellent color purity, a multinary oxynitride phosphor represented by the general formula [I] is proposed.

M1_xBa_yM2_zL_uO_vN_w  [I]

In the formula [I], M1 represents Cr, Mn, Fe, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm and Yb, M2 represents Sr, Ca, Mg and Zn, L represents metal elements belonging to the fourth group or the fourteenth group of the periodic table, and x, y, z, u, v and w are the numeric values in the following ranges:

0.00001≦x≦3

0≦y≦2.99999

2.6≦x+y+z≦3

0<u≦11

6<v≦25

0<w≦17.

An object of the present invention is to provide a light emitting apparatus that allows it to easily control the driving of LED and has high color rendering properties.

The light emitting apparatus comprises the first light emitting device 108a that has first peak emission wavelength in blue region and emits blue light, the fluorescent material 140 that is excited by the light from the first light emitting device 108a and emits red light, the second light emitting device 108b that has second peak emission wavelength which is longer than the first peak emission wavelength and is shorter than peak emission wavelength of the fluorescent material 140, and the second light emitting device 108b that emits green light of second peak emission wavelength which is longer than the first peak emission wavelength, so as to emit light generated by blending of blue light, green light and red light to the outside.

A powder mixture suitable for use in providing a corrosion resistant coating on metal surface by thermal diffusion coating process. The powder mixture comprises a base metal powder of 0.1-5 wt. % of an additive consisting of at least one oxide of transition metals having particle size preferably of not more than 1 micron.

A photo-luminescence liquid crystal (LCD) display comprises: a display panel and a radiation source for generating excitation radiation for operating the display. The display panel comprises transparent front and back plates; a liquid crystal disposed between the front and back plates; a matrix of electrodes (array of thin film transistors TFTs) defining red, green and blue pixel areas of the display and operable to selectively induce an electric field across the liquid crystal in the pixel areas for controlling transmission of light through the pixels areas. A red phosphor material which emits red (R) light in response to excitation radiation is provided on the back plate corresponding to red pixel areas and a green phosphor material which emits green light in response to excitation radiation is provided on the back plate corresponding to green pixel areas.

A method and apparatus is provided for reducing colour shift in relation to viewing angle in an LCD. The method includes receiving a plurality of pixel data constituting an image, each pixel data including a plurality of sub-pixel colour components having respective data values; for each of the pixel data, comparing the sub-pixel colour component data values included therein; and based on the comparison, modifying the sub-pixel colour component data values included in the pixel data to reduce colour shift when displayed on the LCD.

The invention provides a display panel and a display device thereof. The display panel is provided with a pixel array. The pixel array comprises multiple pixel units, each pixel unit is formed by two first sub pixels, two second sub pixels, two third sub pixels and two fourth sub pixels, and any two adjacent sub pixels are of different colors. The connecting lines of the centers of the adjacent first sub pixels, the centers of the adjacent second sub pixels, the centers of the adjacent third sub pixels and the centers of the adjacent fourth sub pixels form a non-rectangular parallelogram. Compared with the prior art, the display panel and the display device thereof can reduce the number of the sub pixels of each original pixel from three to two to reduce the area of pixel layout of the pixels, and image resolution in display can be improved. In addition, sub pixel design of RGBY four colors is adopted by the pixel units of the display panel and the display device thereof, and power consumption is lowered by being compared with sub pixel design of RGB three-primary colors.

There is provided a color display unit having a wide range of color reproduction and low power consumption, with a simple structure, and without causing element deterioration. The display unit comprises light source means for generating blue light, a color conversion layer having a red color region for converting the blue light generated by the light source means to red light, a green color region for converting the blue light to green light, and a blue color region for transmitting the blue light as is, arranged on a flat surface, and a pixel switch structure for turning the blue light ON or OFF for each of the red color region, green color region and blue color region in response to an image signal.

Semiconductor nanocrystal compositions comprising magnesium containing shells and methods of preparing them are described. The compositions provide strong emission in the blue and green wavelengths as well as chemical and photostability that have not been achieved with conventional shell materials.

Disclosed is a color liquid crystal display (LCD) apparatus employing a transmissive color liquid crystal display panel. The apparatus includes, as a light source, a main white light source (21) having a three wavelength phosphorescent lamp emitting light with three or more wavelengths, and an auxiliary light source (22) having at least one of a red light emitting diode (22R), a green light emitting diode (22G) and a blue light emitting diode (22B). The red light emitting diode emits red light with a peak wavelength λpr=645 nm, the green light emitting diode emits green light with a peak wavelength λpg=555 nm and the blue light emitting diode emits blue light with a peak wavelength λpb=440 nm. The light sources act for completely covering the color reproducing range of the sRGB standard and further enlarging respective color ranges.

The invention relates to ceramic tile furnishing equipment and a furnishing method. The ceramic tile furnishing equipment comprises a glaze mixer, a glaze pouring bell jar and a conveyer belt, wherein the glaze pouring bell jar is arranged above the conveyer belt, and an outlet of the lower end of the glaze mixer is connected with an inlet of the upper end of the glaze pouring bell jar. When the ceramic tile furnishing equipment is used, a ceramic tile body subjected to pressing and burning is conveyed below the glaze pouring bell jar by the conveyer belt, colored glaze with different specific gravities is filled in the glaze mixer through a glaze injection port for mixing, color paste after glaze mixing is poured on the surface of the ceramic tile body through the glaze pouring bell jar, and then the ceramic tile body poured with the color paste is conveyed to a silk screen printing machine by the conveyer belt to be printed with colored frit dry grains for decoration and finally is burned and molded. According to the invention, existing equipment is slightly improved to realize a surface pattern modeling function, the cost is low, the refitting operation is convenient, and glaze suitable for the furnishing equipment has a wide color range and natural stereoscopic impression.

A yellow toner for an electrophotographic imaging apparatus is provided where the toner includes: a binder resin; a pigment; and a charge control agent, wherein the pigment comprises 2-8% by weight of Pigment yellow 74 based on the weight of the toner. The toner is uniform and has small differences between toner particles in performance such as charge amount and has a long press life when used in a non-contact developing method, thereby allowing for high quality images.

The invention discloses a coating with protection and color alteration functions. The coating is prepared from the following components in parts by weight: 150-200 parts of thermoplastic butadiene styrene rubber A, 50-100 parts of thermoplastic butadiene styrene rubber B, 300-400 parts of sec-butyl acetate, 300-400 parts of 120# solvent naphtha, 300-400 parts of xylene, 30-50 parts of C9 petroleum resin, 5-10 parts of antioxidant, 5-10 parts of ultraviolet light absorber, 3-10 parts of light stabilizer, 12-25 parts of fumed silica, 3-6 parts of defoaming agent and 0 or 15-32 parts of pigment. Compared with a chloroprene rubber strippable coating, the coating with protection and color alteration functions, disclosed by the invention, belongs to an environment-friendly coating and is greatly improved on the aspects of elasticity and toughness such as tensile strength, stretching strength, resilience coefficient, surface hardness, adhesive force and the like.

The present invention provides a high temperature and bright red ink-jet ink for ceramic decoration, its preparation method and application thereof. On the base that the existing ink-jet ink production process, ink-jet printing equipment and ink-jet printing process are not made major changes, high temperature bright red ink basic glaze powder composition, basic glaze frit powder composition, solvent composition, basic glaze powder and bright red pigment grinding method and particle size optimization, ink composition and processing methods are adjusted and optimized. Thus the performance of high temperature bright red ink can meet the requirement of the use of ink-jet printing machine, and after high temperature firing (1080° C.˜1230° C.), the surface decoration color of ceramic tile sprayed a single printed high temperature bright red is bright red, colorful, pure red, and at the superposing place with other color ink-jet printing ink, the color is bright, colorful, color gamut broad. At the same time, the technology has strong universality and is easy to popularize in the industry.

The invention discloses a stripping finishing method of woolen dyed fabric, which comprises the following steps of: wetting dyed woolen fabric, adding reducing agent and ampholytic surface active agent, and treating at high temperature under the acidic condition; and then, cooling and washing by water, wherein the reducing agent is Decrolin, and the ampholytic surface active agent is ALBEGAL SET. The method can be used for stripping return repair after dye, so that the acidic complex dye and acidic medium dye of woolen fiber can be stripped by about 70%, wool reactive dye can be stripped by more than 50%, and color repair can be carried out again.

A display device comprised of OLEDs and micro LEDs which allows for blue light degradation of the OLEDs includes a first substrate and a second substrate in a double-decked configuration. First light emitting elements are located and spaced on the first substrate and second light emitting elements are located and spaced on the second substrate, the light emitting elements on the lower deck being staggered so as not to be hidden by the light emitting elements on the upper deck. The upper deck has openings (or is transparent) therein to allow egress of light from the light emitting elements of the lower deck. The display device provides a solution for uneven display cause by degradation of pixels.

The present invention pertains to a process for preparing a powder coating composition, the process comprising the steps of:

• • a. providing a set of base compositions, each base composition comprising a liquid carrier and one or more constituents responsible for an intended property of the coating product, at least one base composition A being an aqueous dispersion or emulsion of a film-forming material,
  • b. selecting base compositions to be used to obtain the intended end product property, said base compositions comprising at least one base composition A as specified;
  • c. mixing the selected base compositions in a ratio suitable to obtain the intended end product property;
  • d. drying, preferably spray-drying, the mixture of base compositions or otherwise removing the liquid carrier(s), and
  • e. simultaneously or subsequently, combining the particles of the base compositions into larger particles.

Preferably, the particles of film-forming material in base composition A have a d(v,50)<5 μm. Preferably, at least one base composition A is prepared by phase inversion emulsification.

The present invention relates to an azo compound represented by the following formula (1):

(wherein, in the formula (1), R₁ represents a hydrogen atom; a hydroxyl group; a carboxyl group; a (C₁-C₄)alkyl group which may be substituted by a hydroxyl group or a (C₁-C₄)alkoxy group; or the like, and A represents an aliphatic amine residue having a carboxyl group or a sulfo group, respectively;) or a salt thereof; an ink composition containing the same; and an inkjet recording method and a colored object using the same. Said azo compound has a high color value and has a hue between yellow and red or a brown hue. The ink containing said azo compound has satisfactory storage stability, and exhibits, when printed therewith, a stable ejection property even on a thermal type inkjet printer, and gives a print of high quality (superior in light fastness, ozone gas fastness and moisture fastness).

The invention discloses an impregnated paper-laminating multilayer solid wood locking-type floor and a manufacture method thereof, relating to decorative materials. The impregnated paper-laminating multilayer solid wood locking-type floor comprises a surface layer of aluminum oxide wear resistant paper, a decorative layer of decorative bond paper, a substrate of multilayer solid wood plates and an impregnated paper balancing layer at the bottom surface. The edges of the multilayer solid wood plates are processed into a locking structure, the tenon of the structure comprises a horizontal raised line with a bulge in the middle and a lower groove sunk upwards, and a mortise comprises a horizontal groove sunk in the middle and an upper raised line at the lower part. The manufacture process comprises the steps of: hot-pressing and veneering, cooling, curing, cutting a big plate, curing, cutting a small sheet and notching. The invention has the advantages of higher wear resistance, convenience and firmness for installation, low production cost, safety and environmental protection and is suitable for interior decoration of various occasions, such as homes, offices, shopping malls and the like.