65results about How to "Increase color gamut range" patented technology

The invention relates to a digital high-emulational artwork reproduction method which comprises the following steps: 1) an artwork image input step: a digital image input device is used to scan an artwork manuscript to obtain a RGB chart of the artwork manuscript; 2) an artwork image processing step: the RGB chart of the artwork manuscript is made a high-fidelity color separation processing, then is transformed into a CMYK chart to obtain a high-fidelity chart made a color management and a CMYK chart made a color management; 3) an artwork image output step: the material with the same texture with the artwork manuscript is adopted, and an ink-jet printer is used to print out an artwork duplicate on the material. The invention adopts a large-format high-precision scanner and a high-precision digital camera to directly form image, makes a high-precision and high-fidelity image information collection to the picture of the manuscript, performs the input color management, has the characteristics of high latitude, large color gamut range, high saturation, rich hierachy, big tone range and rich fine hierachy. The invention makes an elaborate and skilled art processing and art treatment according to the characteristics of Chinese paintings, thereby realizing perfect reproduction of cultural and art treasures; the produced exquisite works represent dryness, wetness, thickness and thinness of ink rhyme of Chinese traditional paintings and fully reappears the style and the verve of the original works.

The invention relates to the field of display backlights, in particular to an optical device capable of realizing a high-color-gamut backlight. The optical device capable of realizing the high-color-gamut backlight comprises an optical lens and an LED light source placed in a groove of the bottom of the optical lens, wherein the LED light source is formed by packaging a single chip which does not contain fluorescent powder, quantum dot fluorescent powder is arranged in the optical lens in a sealing mode, and the LED chip is a blue-light LED chip. By arranging the quantum dot fluorescent powder in the optical lens in the sealing mode, the quantum dot fluorescent powder can be effectively prevented from being oxidized, and meanwhile the problem that luminous efficiency is low because the quantum dot fluorescent powder makes contact with air is solved. The optical device can expand the color gamut range of the backlight greatly, is applied to the lighting field, and can realize lighting with a high color-rendering index and avoid the phenomena of luminescence unevenness and color rings.

Disclosed is a projection system. The projection system comprises a first light source, a second light source, a color gamut judgment module, a light source controller and a light modulation apparatus; the first light source is used for giving out primary light for modulating an image; the primary light can be used for modulating an image within a first color gamut range; the second light source is used for giving out supplementing light for expanding the color gamut of at least one kind of light from the primary light emitted from the first light source; the color gamut judgment module is used for receiving image data and judging a color gamut range of a to-be-displayed image according to the image data, and outputting a control signal according to the color gamut range; the light sourcecontroller is used for receiving the control signal and controlling the starting and closing of the first light source and the second light source according to the control signal to enable the color gamut range which can be modulated by the light emitted from the first light source and the second light source to satisfy the color gamut range of the to-be-displayed image; and the light modulation apparatus is used for performing image modulation on the primary light and the supplementing light to generate projection light needed by the to-be-displayed image.

The invention relates to a single-fired glass ceramic composite brick and a production method. A blank of the ceramic brick is prepared from, by weight, 10-15 parts of clay, 0-5 parts of mineralizing agents, 0-10 parts of lithium china stones, 74-85 parts of tile-polished waste, 0-1.2 parts of peptizers and 0-0.5 part of reinforcing agents. The production method comprises the steps that the blank is processed through procedures of wet ball milling and spray drying and then processed through dry pressing to prepare a ceramic green blank; 2, the ceramic green blank is coated with a ground glaze after being dried and decorated through printing to form an overglazed color blank, and then microcrystalline glass frit dry grains are coated on the overglazed color blank to form a dry grain layer; 3, methylcellulose is sprayed and fixed on the surface of the dry grain layer, then the blank is put into a roller kiln to be fired, the firing temperature is set at 1000 DEG C-1048 DEG C, the firing time is set for 65-150 minutes, and a semi-finished product is prepared; 4, the semi-finished product out of the kiln is prepared into a finished produce after being processed through strickling for thickness fixation, rough polishing, fine polishing, edging, chamfering, air drying, inspecting and sorting, color separating and grading.

The invention relates to a screen display method. The invention is characterized in that each pixel comprises a red sub-pixel, a green sub-pixel, a blue sub-pixel and a mixed color sub-pixel that is mixed by any two sub-pixels from red, green and blue sub-pixels. The color filter device chooses the materials with excellent color saturation as the sub-pixels to upgrade color range and keeps white balance status by adjusting the area of the sub-pixels and matching a specific arithmetic simultaneously.

The invention provides a display device with a quantum dot diaphragm. The display device with the quantum dot diaphragm comprises a display panel, a backlight module (2) located below the display panel, the quantum dot diaphragm (3) located between the display panel and the backlight module (2), and a plurality of light reflecting units (41) arranged between the quantum dot diaphragm (3) and the display panel. The quantum dot diaphragm (3) emits exciting light under excitation of the backlight module (2). A black matrix is arranged in a liquid crystal panel. The light reflecting units (4) correspond to the black matrix. The display device with the quantum dot diaphragm is wide in color gamut range, good in image quality and high in quantum dot excitation efficiency and backlight utilizing efficiency.

The invention relates to the technical field of displays, specifically to an organic lighting structure and a display apparatus. The organic lighting structure comprises a first lighting unit, a second lighting unit, a third lighting unit and a fourth lighting unit, wherein the lighting wavelength of the first lighting unit, the lighting wavelength of the second lighting unit, the lighting wavelength of the third lighting unit and the lighting wavelength of the fourth lighting unit are increased gradually, and the lighting efficiency of the second lighting unit and the lighting efficiency of the third lighting unit are better than the lighting efficiency of the first lighting unit and the lighting efficiency of the fourth lighting unit. The color gamut scope of the organic lighting structure is expanded, the color saturation of the lighting device is improved, and the color number is increased, so that the development trend of color reproducibility in the display apparatus can be met.

The invention provides a laser backlight liquid crystal display (LCD) system which comprises a laser source with three primary colors, a light combination system, dot line light source switching system(s), a backlight plate, a liquid crystal plate and a signal receiving and processing drive system, wherein the light combination system is positioned between the laser source and the dot line light source switching system(s), the dot line light source switching system(s) is / are positioned at one or two side(s) of the backlight plate, the liquid crystal plate is positioned on the backlight plate, and the liquid crystal plate is connected with the signal receiving and processing drive system. By adopting the laser with the three primary colors, high brightness and good monochromaticity as the backlight, and the liquid crystal plate without a colored filter film, the system can realize the laser sequential display way by controlling the sequential luminescence of a laser with the three colors by timing sequence, and utilizes the characteristic of persistence of vision of human eyes to realize time color mixture, thus greatly expanding the displayed color gamut, and improving the optical energy utilization rate and the space resolution rate; furthermore, as the front of the liquid crystal plate is stuck with a view field angle expanded film, the view field can be expanded.

The invention provides a dark-patterned fully-polished surface ceramic product. The product sequentially comprises a blank layer, a ground glaze layer, a spray printing pattern layer 50%-100% patternarea of which has a gray value of not less than 60% under a CMYK (Cyan, Magenta, Yellow and Black) color mode, and a dry granular glaze layer with a flat mirror surface from top to bottom. The ceramic product with the flat mirror surface after surface polishing is prepared by using the optimal ratio and the innovative process method of wet-spraying dry granular glazes, and the production problemthat the dark-patterned plate surface of the fully-polished glazed product produced in the industry is unlikely to have high superior product rate because of a large usage amount of ink is solved.

A method for improving color reproducibility of liquid crystal display includes adding red light LED chips and green light LED chip in LED light source plate of LED back light module on liquid crystal display and arranging said red and green light LED chips alternatively in white light LED chips in order to carry out proper compensation on attenuated color for greatly raising scope of finally-outputted color domain through effective light-mixture.

The invention discloses a side-edge backlight module of an LCD. The side-edge backlight module comprises a light guide plate, a surface light-emitting optical fiber arranged on the side edge of the light guide plate; and light sources respectively arranged on both ends of the surface light-emitting optical fiber. The side-edge backlight module of the invention has the advantages of improved light utilization efficiency, improved color gamut range, thinned product, etc.

The invention relates to a continuous color matching device for a large color gamut and belongs to the technical field of optic precision measurement. The continuous color matching device comprises a first uniform area light source, a second uniform area light source, a fundamental color matching system, a complementary color matching system and a color mixer. The first uniform area light source comprises a first light source and a first small integrating sphere. The second uniform area light source comprises a second light source and a second small integrating sphere. The color mixer is formed by a large integrating sphere. The fundamental color matching system comprises a front flange A, a fundamental color filtering baseboard, three light barriers and a rear flange A. The complementary color matching system comprises a front flange B, a complementary color filtering baseboard, three light barriers and a rear flange B. The light barriers can make radial movements along light through openings. Different light barrier combinations can be selected, luminous flux of light in each color can be adjusted by moving the light barrier combination, tristimulus values of emitted light of the color mixer is changed by adjusting luminous flux ratio of the lights in six colors, so that color gamut of the emitted light can be controlled, and larger light output power can be realized.

The invention discloses a high-bending-degree wide-color-gamut ceramic curved surface rock plate and a preparation method and application thereof. The thickness of the curved surface rock plate is 3-6 mm, the curvature radius is larger than or equal to 100 mm, and the arc center angle is 0-180 DEG C. The curved surface rock plate comprises a glaze layer, and the glaze layer comprises a ground glaze layer and a cover glaze layer arranged on the upper portion of the ground glaze layer. The ground glaze layer is prepared from the following raw materials in parts by weight: 81-90 parts of EN-1 frit, 8-12 parts of kaolin, 2-7 parts of quartz, 0.3-0.5 part of sodium tripolyphosphate and 0.15-0.22 part of sodium carboxymethyl cellulose; the cover glaze layer is prepared from the following raw materials in parts by weight: 30-45 parts of 7 # transparent frit, 8 parts of kaolin, 0-7 parts of quartz, 0-40 parts of albite, 0-15 parts of potassium feldspar, 0-5 parts of dolomite, 0-5 parts of calcite, 0-6 parts of barium carbonate, 0.3-0.5 part of sodium tripolyphosphate and 0.15-0.22 part of sodium carboxymethyl cellulose. According to the ground glaze formula adopted by the curved surface rock plate, after hot bending and re-burning, glaze cracks of the bottom surface glaze are not generated, the phenomena of matt recrystallization and glaze layer devitrification are avoided, and the color gamut range is widened.

The invention relates to the LED light source technical field, and especially relates to an LED lamp bead and an LED light source; the LED lamp bead comprises an LED chip and a quantum dot film; the LED chip emits light; the quantum dot film is located in the main light emitting direction of the LED chip, and comprises a quantum layer formed between two transparent film layers; the quantum layer is a film formed by hot pressing a mixture of evenly mixed quantum dots and a packaging glue; the quantum dot film is formed by evenly mixing quantum dots, the packaging glue and acrylic powders, and hot pressing the mixture; the LED light source employs said LED lamp beam. The LED lamp bead and the LED light source are wide in color gamut scope.

The invention discloses a Mini LED backlight module and a backlight source. The Mini LED backlight module comprises a substrate, a Mini LED light-emitting unit and packaging colloid. ,A solid crystalbonding pad, a metal circuit and a wiring terminal are distributed on the substrate, the metal circuit connects the solid crystal bonding pad to the wiring terminal and is communicated with a drivingcircuit, the light-emitting unit comprises a Mini LED red light chip, a Mini LED green light chip and a Mini LED blue light chip, the three chips are distributed on the substrate in an array interaction mode, each chip can be independently driven through the substrate circuit, and spherical packaging is carried out on the light-emitting unit in a dispensing mode or a printing mode. The red chip, the green chip and the blue chip are adopted as backlight, the color gamut range and brightness of the backlight source can be greatly improved; through interactive distribution and spherical packagingof the three chips, the light color of the backlight can be more uniform after the light rays are mixed, a diffusion plate is not needed, the backlight thickness can be greatly reduced, and partitionlight control can be conducted on the backlight through the independent driving design of the chips, so that the performances of wide color gamut, miniaturization, high brightness and high contrast are realized.

The invention relates to the technical field of display, and particularly relates to an organic light emitting structure, a display device and a mobile terminal. The organic light emitting structure comprises a first light emitting unit, a second light emitting unit, a third light emitting unit and a fourth light emitting unit; each of the first light emitting unit, the second light emitting unit, the third light emitting unit and the fourth light emitting unit comprises a first electrode, a second electrode and an organic laminated body arranged between the first electrode and the second electrode, and one in the first electrode and the second electrode is a semitransparent electrode; the organic laminated body comprises a light emitting layer; and at least one in the first light emitting unit, the second light emitting unit, the third light emitting unit and the fourth light emitting unit is a fluorescent light emitting unit. The color gamut range of the organic light emitting structure can be increased, the color saturation of the light emitting device is improved, and the color number is increased, so as to better adapt to the development trend of color reproduction in the display devices.

The present invention relates to the video display technology field, and makes efforts to solve the problem that the CIE 1931 standard three-primary colors cannot express most of high saturation visible colored light in the nature. A multiple primary color expression method of the nature composite colors is explored; and the transmission and the storage method compatible with the CIE 1931 standard three-primary colors is discussed. The method comprises the steps: (1) employing a polygon formed by the multiple primary color component signals for analysis; (2) employing a triangle formed by other primary colors for expression aiming at the composite colors which cannot be expressed by the CIE 1931; and (3) continuing the analysis of the difference value of the chrominance component and the brightness signals aiming at the composite color signals which cannot perform standard expression by the CIE 1931, and selecting two difference values with the minimum absolute values to form U and V color difference signals. The method compatible with the multiple primary color expansion color gamut is mainly applied to the video display occasion.

The invention discloses a display device and a driving method thereof. A plurality of blue light LEDs and a plurality of green LEDs are driven to be lightened so as to stimulate a quantum dot layer toemit fluorescence. When the green light LEDs are lightened, a first green subpixel is charged, so that the first green subpixel emits first green light with the emitting wavelength being a first peakvalue. When the blue light LEDs are lightened, a second green subpixel is charged, so that the second green subpixel emits second green light with the emitting length being a second peak value. The first peak value and the second peak value are different, and the color coordinates of the first green light and the second green light on a CIE chromaticity diagram are different, so that green correspond to two color coordinates. The vision persistence effect of human eyes enables human eyes to see the green light which is light formed after the first green light and the second green light are mixed, so that the color gamut range of the display device is enlarged.

The invention provides a light source system. The light source system comprises an excitation light source used for emitting excitation light, a supplementary light source used for emitting supplementary light, a color wheel, a first reflecting device, a second reflecting device and a deflection device; the color wheel comprises a conversion region, a scattering region, a first reflection region and a second reflection region; the conversion region and the first reflection region are mutually connected to form a first circular ring; the scattering region and the second reflecting region are mutually connected to form a second circular ring; the second circular ring is arranged around the inner side or the outer side of the first circular ring; the position of the first reflection region isadjacent to the position of the second reflection region; the position of the conversion region is adjacent to the position of the scattering region; the conversion region is used for receiving the excitation light and emitting excited light; the scattering region is used for scattering and emitting the supplementary light; the first reflection region and the second reflection region are used forreflecting and emitting the exciting light; the first reflecting device and the second reflecting device are both used for reflecting the exciting light to the first circular ring; and the deflectiondevice is used for controlling the first reflecting device to deflect so as to irradiate the exciting light reflected by the first reflecting device to the second reflection region.

The invention relates to a light and color multiplexing continuous regulation device, and belongs to the technical field of optical precision measurement. The light and color multiplexing continuous regulation device specifically comprises a front flange plate, three light barriers, six color filters, a support mechanism A, a support mechanism B, a triangular support and a rear flange plate, wherein the front flange plate, the support mechanism A, the support mechanism B and the rear flange plate are close to each other in parallel, circular center holes are respectively formed on the front flange plate, the support mechanism A, the support mechanism B and the rear flange plate, the centers of circles of the four center holes are coaxial and the four center holes are equivalent in caliber; the triangular support is positioned in the center holes of the support mechanism A and the support mechanism B; three identical radial grooves are formed on each of two end surfaces of the support mechanism A and used for mounting of the color filters which can be moved out; and the grooves which are the same with those on the support mechanism A are formed on the support mechanism B and used for mounting of the light barriers which can be moved out. According to the light and color multiplexing continuous regulation device provided by the invention, incident light can be divided into threebeams of light in different colors, and the respective light flux of each of the three beams of the light can be changed or only the light flux of the incident light is changed, so that continuous color mixing in a large color domain range and the continuous color mixing in a large dynamic range can be further realized.

An embodiment of the invention discloses a colored-film substrate, a manufacturing method of the colored-film substrate and a display device, and relates to the technical field of display. Color gamut and light transmittance of the display device can be increased on the premise of keeping same power consumption. The colored-film substrate comprises a substrate, a color filtering layer and a quantum dot layer, wherein the color filtering layer is arranged on the substrate, the quantum dot layer comprises at least three quantum dots, and any one of quantum dots in the quantum dot layer can emit light of corresponding bands under sunlight.

The invention provides a four-color wide-color-gamut offset printing ink for H-UV printing. The four-color wide-color-gamut offset printing ink comprises magenta printing ink M, blue printing ink C, yellow printing ink Y and black printing ink K, which are used as four-color ink for printing. The Lab values of the four-color ink are respectively as follows: magenta printing ink M (L=52 + / - 5, a=81+ / - 5, b=-13 + / - 5), blue printing ink C (L=53 + / - 5, a=-36 + / - 5,b =55 + / - 5), yellow printing ink Y (L=89 + / - 5, a=-3 + / - 5, b=110 + / - 5), and black printing ink K (L=10 + / - 5, a=0 + / - 5, b=0 + / - 5). According to the four-color printing ink for H-UV printing, the color range of printing ink is broadened, the color is saturated, the printing efficiency is improved in the application process, a printing product with a wider color gamut can be produced, and the quality of the printed product is improved.

The invention discloses a display system. A light emitting diode and a laser diode are used as a backlight source for a display panel and correspondingly provided with a first drive unit driving the light emitting diode to emit light and a second drive unit driving the laser diode to emit laser respectively, a control module acquires an image signal to be displayed on the display panel and confirms whether an image to be displayed needs image quality compensation or not, controls the first drive unit and the second drive unit to respectively drive the light emitting diode and the laser diode to emit light jointly if the image to be displayed needs image quality compensation and only controls the first drive unit to drive the light emitting diode to emit the light if the image to be displayed does not need the image quality compensation. Compared with the situation that a liquid crystal display in the prior art only uses the light emitting diode as the backlight source for the display panel, a color gamut range of the liquid crystal display can be effectively widened, the color saturation of a display frame can be effectively improved, the image quality definition is improved well, and the display frame can be real and have gradation sensation.

The invention provides a display substrate, a manufacturing method of the display substrate, a display panel and a display device. The first electrode layer is arranged on one side of the driving backboard and at least comprises a plurality of electrode blocks arranged in an array mode, the electrode blocks comprise the first electrode blocks and the second electrode blocks, and the thickness of the first electrode blocks is smaller than that of the second electrode blocks; the light-emitting material layer covers the electrode block, and the light-emitting material layer is of a continuous whole-layer structure; a second electrode layer covering the light emitting material layer; the color film layer is arranged on the side, away from the driving backboard, of the second electrode layer and comprises a green first light filtering area and a red second light filtering area, and the orthographic projection of the first light filtering area on the driving backboard is at least partially overlapped with the orthographic projection of the first electrode block on the driving backboard; and the orthographic projection of the second filtering area on the driving back plate is at least partially overlapped with the orthographic projection of the second electrode block on the driving back plate. According to the display substrate, the display power consumption can be reduced while high-color-gamut display is achieved.

The invention relates to wide-color gamut and multi-primary color image and video display. In order to carry out transmission and storage compatible with a YUV format under three-primary color condition on multi-primary color video signals, sources of YUV signal components are judged through utilization of a blind recognition method, and the multi-primary color video signals of an information source end are restored from propagated YUV image components. A method for identifying YUV signal sources in multi-primary color image signals provided by the invention comprises the steps that S1, the multi-primary color image signals are propagated; S, sources of YUV signals are recognized at a receiving end; S3, compatibility with a current standard color gamut display equipment is ensured; S4, theYUV signals comprise information of a fourth primary color, and two primary colors in R, G and B; S5, the fact a current standard color gamut display can display correctly is ensured; S6, corresponding color signals are accurately displayed; and S7, criteria for recognizing the YUV signal sources are defined. The method is mainly applied to a video display occasion.

The invention discloses a preparation method of yellow carbon (nitrogen) quantum dots containing red and green binary colors, which relates to the technical field of functional inorganic nonmetallic materials and comprises the following steps of pouring benzoic acid, o-phenylenediamine and a solvent into a reaction kettle, reacting at 140-260 DEG C for 1-24 hours, and purifying the product in thereaction kettle to obtain the yellow carbon (nitrogen) quantum dots containing red and green binary colors. The solvent comprises an alcohol compound and a polar organic solvent, and the molar ratio of o-phenylenediamine to benzoic acid is 5: 3-15. The invention also provides the carbon (nitrogen) quantum dot prepared by the preparation method and application thereof. The preparation method has the beneficial effects that the prepared yellow carbon (nitrogen) quantum dot can emit green light and red light at the same time, and compared with a conventional yellow carbon quantum dot, the prepared yellow carbon (nitrogen) quantum dot can improve the color rendering index, expand the color gamut range and save the economic cost.

The invention provides a display device, a control method of the display device and a computer readable storage medium. The display device comprises a control device which is used for dividing the display time period of each frame of image to be divided into a first time period and a second time period, and transmitting a light source control signal and a modulation signal corresponding to each pixel in the image to be displayed according to the original image data in each frame of image to be displayed; a light source system used for emitting light source light according to the light sourcecontrol signal, wherein the light source light comprises first light which is emitted in the first time period and comprises three primary color components; second light emitted in the second time period and comprises laser, and laser included in the second light and at least part of primary color light in the first light are metamerism light. The device comprises a light modulation apparatus which is used for respectively modulating the first light and the second light according to the modulation signal so as to generate first image light and second image light of an image to be displayed.