238 results about "Deep blue" patented technology

To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image.A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.

To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image.A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.

An organic light-emitting diode with high efficiency and long lifetime includes a first electrode, a second electrode facing the first electrode and an emissive layer between the first electrode and the second electrode, wherein the emissive layer includes a luminescent material that allows for the emission of deep blue light at high efficiency with a long lifetime.

Provided is an organic light-emitting diode (OLED) display device having sub-pixels with four colors. When a B1 sub-pixel that represents deep blue and a B2 sub-pixel that represents sky blue are formed, by using a high efficiency blue organic material to form the same emission material layers in both the B1 and B2 sub-pixels such that a microcavity effect is implemented only in the B2 sub-pixel and a sky blue peak is extracted from the high efficiency blue organic material of the B2 sub-pixel, the emission material layer of the B2 sub-pixel represents sky blue. Therefore, a process of depositing emission material layers is simplified, which leads to a short process time and a reduction of the cost of materials, resulting in improvement in process efficiency of the OLED display device.

A blue phosphorescent compound and an organic electroluminescent device using the same are provided. The blue phosphorescent compound can emit deep blue light and can improve color purity and reduce power consumption when used in an organic electroluminescent device.

The invention provides a disperse dye composition and a disperse dye. The compositions comprises at least one component A shown as a formula (I), at least one component B shown as a formula (II) and at least one component C shown as a formula (III), wherein based on the component A, the component B and the component C, the mass percentage of the component A is 1 to 49 percent, the mass percentage of the component B is 50 to 98 percent, the mass percentage of the component C is 1 to 49 percent. The disperse dye composition of the invention can used for dyeing in liquid and paste states after micronization or in powdery and granular states after being dried by spray drying. Disperse dyes made by the formula of the disperse dye composition of the invention allow for adjustment of proportion of different dyes in the dyeing of polyester fiber materials to obtain dyed cloth with colors from deep blue to dark and the obtained dyed cloth has the advantages of bright color, good dispersivity, sun fastness, wash resistance, sweat resistance, etc.

The invention provides a dispersed deep blue dye composition, which mainly comprises a component A shown as a formula (I) with one or more structures, a component B shown as a formula (II) with one or more structures, and a component C shown as a formula (III) with one or more structures; and based on the component A, the component B and the component C, the component A is 20 to 99 mass percent, the component B is 0.1 to 40 mass percent and the component C is 0.1 to 50 mass percent. When the dispersed deep blue dye composition is used for dyeing hydrophobic fiber materials, the dyeing residue is clear and the flooding is a little; by adjusting a ratio of the components, deep blue dyed fabrics with good lifting property, washing fastness, friction fastness and sublimation fastness can be obtained; and the dispersed deep blue dye composition is suitable for dyeing high-grade fabrics such as super-fine fabrics, polyester / cotton blend fabric, polyester / ammonia blend fabric and the like.

To attain a high color reproducibility as a whole image without impairing the brightness of the entire image.A color image display device comprising a combination of light shutters, a color filter having color elements of at least three colors of red, green and blue corresponding to the light shutters, and a backlight for transmission illumination, wherein a light source to be used for the backlight comprises a combination of a blue or deep blue LED and a phosphor, and the relationship between the NTSC ratio W as a color reproduction range of the color image display element and the light use efficiency Y is represented Y≧0.38W+51 (wherein W≧87).

The invention discloses an electroluminescent material from near-ultraviolet to deep blue containing 9-alkly-1, 3, 6, 8-aryl used as substitute for carbazole derivative and a preparation method thereof. The structure of the invention can be expressed by element analysis, nuclear magnetic resonance spectrum and mass spectrum; the optical physic properties of the invention are studied by ultraviolet absorption spectrum and fluorescence spectrum; the application of the invention in organic light-emitting diodes is also studied. The experiment indicates that the compound has good dissolve performance and good heat stability; the light of near-ultraviolet or deep blue given out by solid powder and film has good color purity; the maximum wavelength of light is 390-440nm.

Devices and fabrication methods thereof are provided which reduce image sticking and / or improve lifetime and performance of blue emissive devices. Each device may include non-common transport layers between emissive devices, one or more optical capping layers, light and deep blue emissive devices, a mixed host emissive layer, a high T1 transport layer, and / or a stacked blue device in conjunction with single emissive layer red and / or green devices. The provided structures may be used individually, in combination, or as a group in a single device.

The invention discloses a method for synthesizing a Eu<3+>-doped BiVO4 visible light photocatalysis material by using a citric acid complexed sol-gel method. The preparation method is simple, and the visible light activity of the obtained photocatalyst is high. According to the invention, Bi(NO3)3.5H2O (97%) and NH4VO3 (98.5%) are adopted as source materials; citric acid (99.5%) is adopted as a chelating agent; Eu(NO3)3 is adopted as a doping source material; the pH value is regulated by using ammonia water, and a deep blue sol is prepared; the sol is dried by baking, and is calcined for 5h under the temperature of 500 DEG C, such that the Eu<3+>-doped bismuth vanadate photocatalysis material is obtained. Compared with non-doped bismuth vanadate, oxygen vacancies and V<4+> with catalytic activities in the Eu<3+>-doped bismuth vanadate crystals are increased. After doping, red shift occurs in the light absorption performance of the sample, the band gap can be narrowed, such that the visible light photocatalytic activity is substantially improved. The method provided by the invention is advantaged in simple process, mild condition, and good repeatability. The method can be widely applied in photocatalytic degradation of organic pollutants, and has a good application prospect in environment treatment.

A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light.

A light-emitting arrangement (100) is disclosed, which is adapted to produce white output light enhancing the color perception of e.g. food in retail environments. The light-emitting arrangement comprises at least one blue light-emitting element (102) adapted to emit light having an emission peak in a first wavelength range of from 440 to 460 nm, and at least one deep blue light-emitting element (101) adapted to emit light having an emission peak in a second wavelength range of from 400 to 440 nm. Further, the light-emitting arrangement comprises at least one narrow band wavelength converting material (104) arranged to receive light emitted by said deep blue light-emitting element, and at least one broadband wavelength converting material (105) arranged to receive light emitted by at least one of said blue light-emitting element and said deep blue light-emitting element. A spotlight comprising such a light-emitting arrangement, and an illumination device comprising a plurality of the light-emitting arrangements, is also disclosed.

The present invention discloses a vat dark blue dye and its preparation method. Its composition comprises (by weight portion) portion of vat dark blue, 0.8-2 portions of dispersing agent and 0.8-2 portions of lignin, and also contains (wt%) 0.1%-1.0% of dust-proofing agent. Its preparation method includes the following steps: (1) stirring water, vat dark blue, dispersing agent and lignin, beating and mixing them; (2). grinding; (3) drying; and (4). adding dust-proofing agent, and mixing them uniformly obtain the invented dye which can be directly used to make pigment pad dyeing and pigmentation cheese dyeing so as to reduce energy consumption.

The disperse blue dye composition consists of component A in 1-99 wt% and component B in 1-99 wt% basically, with the structures of component A and component B being shown. The disperse blue dye based on the disperse blue dye composition may be liquid state with particle, emulsion, powder or granule. The disperse blue dye based on the disperse blue dye composition is used in dyeing polyester fiber material, and through regulating the ratio of different components, excellent deep blue dyed fabric with bright color, excellent dispersivity, sunfast property, water resistance, sweat resistance and other advantages may be obtained.

An organic electroluminescent device including a first red sub-pixel region, a first green sub-pixel region and a deep blue sub-pixel region in a first pixel region; and a second red sub-pixel region, a second green sub-pixel region and a sky blue sub-pixel region in a second pixel region adjacent to the first pixel region, wherein each of the first and second red sub-pixel regions includes a first electrode, a red organic emission material pattern and a second electrode, each of the first and second green sub-pixel regions includes the first electrode, a green organic emission material pattern and the second electrode, wherein the deep blue sub-pixel region includes the first electrode, a deep blue organic emission material pattern and the second electrode, and the sky blue sub-pixel region includes the first electrode, a sky blue organic emission material pattern and the second electrode, and wherein an unit pixel displaying an image includes at least one of the deep blue sub-pixel region and the sky blue sub-pixel region with the second red sub-pixel region and the second green sub-pixel region.

A light emitting arrangement is adapted to produce white output light of a total luminous intensity Itot and having an emission peak in the wavelength range of from 400 to 440 nm, comprising: a first light emitting element adapted to emit light of a first luminous intensity I1 and having an emission peak in a first wavelength range of from 440 to 460 nm; and a second light emitting element adapted to emit light of a second luminous intensity I2 and having an emission peak in a second wavelength range of from 380 to 440 nm, wherein the first light emitting element and the second light emitting element are independently controllable such that I2 can be adjusted independently of I1. The possibility of controlling the contribution of deep blue light allows a natural appearance of a crisp white light source at all emission intensities, and may also be used to enhance perception of contrast.

The invention discloses a series of deep blue metal iridium phosphorescence OLED materials. The structural general formulas of the above organic electrophosphorescence materials are represented by formula I-1 and formula I-2. The phosphorescence materials have high heat stability, high quantum efficiency and low doping proportion, and are a series of iridium complex electrophosphorescence materials containing 1,2,4-triazole rings. The above compounds have the characteristics of high luminescence efficiency, good heat stability, easily available raw materials, simple preparation, high total yield, great reduction of the cost of phosphorescence materials, and important application values.

The invention discloses a preparation method of a montmorillonite-modified crosslinked acrylate-hybridized core-shell emulsion. The preparation method of the montmorillonite-modified crosslinked acrylate-hybridized core-shell emulsion comprises the following steps: dispersing sodium-based montmorillonite, an emulsifying agent and a buffering agent into water; stirring to obtain a sodium-based montmorillonite suspension; adding a core monomer mixture and an initiating agent solution into the sodium-based montmorillonite suspension, and preserving heat for 0.5 hours to obtain a seed emulsion; dripping the remaining core monomer mixture into the seed emulsion, and preserving heat for 1 hour to obtain a deep blue core emulsion; and adding the initiating agent solution and a shell monomer mixture into core emulsion, preserving heat for 2 hours and regulating pH value to obtain the opalescent bluish montmorillonite-modified crosslinked acrylate-hybridized core-shell emulsion. The prepared montmorillonite-modified crosslinked acrylate-hybridized core-shell emulsion is good in water resistance and heat resistance of a coating, adjustable in gloss of a latex film, free of organic solvent, environment-friendly, relatively high in solid content (32 to 45%), relatively small in particle size, bluish, high in stability (storage stability is more than six months) and good in a film-forming property at room temperature.

The invention relates to an aromatic amine derivative and an organic electronic device. The structure of the aromatic amine derivative is as shown in the general formula (1), and the definition of thesymbol in the general formula (1) is the same as in the description. The light emission wavelength of above-mentioned aromatic amine derivative has fluorescence emission at a short wavelength and, the light-emitting spectrum of which exhibits a narrow half-peak width, so that the substance has a deep blue fluorescence emission and has a high light-emitting efficiency. The organic electroluminescent element prepared with such an aromatic amine derivative has a deep blue color coordinate, a high luminous efficiency, and a long device life.

The invention discloses a series of fluorescent OLED materials, which have the structure as shown in a formula I. The materials shown in the formula I have delayed fluorescence property; the organic electroluminescent device prepared by utilizing the materials can obtain deep blue organic light emitting diodes, the noble metal phosphorescent materials can be replaced, the manufacturing cost of the OLED device is greatly lowered, the material synthesis and purification methods are suitable for large-scale production, and the materials are an ideal choice of a luminescent material of the organic electroluminescent device.

The invention belongs to the technical field of electroluminescent materials, and discloses an organic semiconductor material and a luminescent device. The organic semiconductor material comprises atleast one substrate material and at least one doping material. The substrate materials are provided with structures shown as a general formula (I), and the doping materials are provided with structures shown as a general formula (II) or a general formula (III). The organic semiconductor material and the luminescent device have the advantages that lightening voltages of the luminescent device prepared from the organic semiconductor material can be obviously lowered, and the luminescent efficiency of the luminescent device can be obviously improved; the efficiency of the organic semiconductor material for deep blue phosphorescent devices can be obviously improved, and accordingly application of the organic semiconductor material to sky blue phosphorescent devices, green phosphorescent devices and red phosphorescent devices can be anticipated according to energy transfer principles.

A blue phosphorescent compound and an organic electroluminescent device using the same are provided. The blue phosphorescent compound can emit deep blue light and can improve color purity and reduce power consumption when used in an organic electroluminescent device.

The invention discloses a weaving process for an aloe fiber small jacquard fabric. The process comprises the following steps: a spooling process, a beaming process, a slashing process, a drawing-in process, and a weaving process. The produced fabric warp yarns and weft yarns respectively use yarns in extra white, grass green, and deep blue colors as mass tone, cooperated with organization design, color of the fabric is bright, grids and figures are clear, and cloth is smooth, and the fabric is comfortable to wear. The fabric has strong stereo perception, and is preferred by consumers. The fabric can be used for shirts, bedclothes, aviation trim, etc. Through analysis and optimization on manufacturing process, weaving efficiency reaches up to 93%, and the process satisfies requirement of improving product grade for enterprises.

The invention discloses an optically controlled grating type free and stereo display device which comprises a display and a grating plate, wherein the grating plate is adhered to the display; the center line of the grating plate is aligned with the center line of a display screen; and the content displayed by the display is a synthetized image which is preprocessed and has binocular parallax. Theoptically controlled grating type free and stereo display device is characterized in that the grating plate is composed of photochromic grids and transparent grid arranged at intervals; the photochromic grids are in a transparent state without the ultraviolet irradiation so as to realize two-dimension display for the display, and is deep blue under the ultraviolet irradiation so as to realize three-dimension display. The optically controlled grating type free and stereo display device has the advantage of simple structure, is convenient to use, and has a good three-dimensional effect, and thecontent of the types for the information display devcie is enriched.

The invention relates to the technical field of organic semiconductors and in particular relates to a PEDOT (poly(3,4-ethylenedioxythiophene)):PSS (poly(sodium-p-styrenesulfonate)) water dispersion prepared by using sulfonic acid type conjugated polyelectrolyte as the template and a preparation method thereof. The preparation method comprises the following steps: adding a sulfonic acid type anionic conjugated polymer, EDOT, PSS and deionized water to a reaction flask under the condition of room temperature and dissolving the materials by stirring the materials; then adding isopropanol, an initiator, a ferric iron catalyst and deionized water to react for 12-24 hours under the conditions of heating at 30-45 DEG C and stirring, thus obtaining a water dispersion; removing the supernatant after centrifuging the water dispersion, after repeating the operations three times, diluting the deionized water for precipitation and then carrying out ultrasonic dispersion for one hour, thus obtaining the PEDOT:PSS deep blue water dispersion with PFSO3H as the template. The PEDOT:PSS water dispersion prepared by the preparation method is simple and reliable in preparation method and has good repeatability. Films of the water dispersion have better transparency and higher electrical conductivity.

The invention relates to a novel OLED (organic light emitting diode) material and an application thereof. By taking 9,9'-spirobifluorene as the center and introducing a substituent group (3,5-dipyridylbenzene) with electronic transmission performance to a live position of 9,9'-spirobifluorene, a novel OLED material which can be used as a deep blue electroluminescent material as well as an electronic transmission material is obtained. The novel OLED material provided by the invention has good film stability and proper molecular energy level, and can be used as a luminous material and / or electronic transmission material in the field of organic electroluminescence.

The invention discloses a type of (the formula is shown in the formula) derivative, material comprising this (the formula is shown in the formula) derivative and organic electroluminescent device. The(the formula is shown in the formula) structural formula of the derivative is shown in the following formula I: (the formula is shown in the formula) The derivative (the formula is shown in the formula) provided by the derivatives, materials containing the same and organic electroluminescent devices as shown by the formula I, has the deep blue fluorescent property, which overcomes the fluorescentaggregation quenching effect of the fluorescent material, and has higher glass transition temperature, high thermal stability and excellent luminescence performance. The properties such as simple synthesis process, simple purification method suitable for large-scale production, and the properties such as product luminescence performance and thermal stability adjustable by connecting different groups, make the derivative an ideal choice for the organic light-emitting layer material of the organic electroluminescent device. The light-emitting layer of the OLED device using the fluorescent material has high fluorescence efficiency and good stability, so that the light-emitting efficiency and the service life of the device can reach the practical requirements.