20results about How to "Improve color expression" patented technology

The invention discloses an unmanned aerial vehicle remote sensing surveying and mapping image processing method, and relates to the technical field of image processing, and the method specifically comprises the steps: S1, carrying out the image data collection of a target region, and obtaining a to-be-processed surveying and mapping image set; s2, obtaining an initial gray level image set from the to-be-processed surveying and mapping image set, and denoising the initial gray level image set through median filtering introducing a window weight factor to process a denoised gray level image; s3, performing calculation processing on the de-noised grayscale image through inverse grayscale transformation and a color channel reduction algorithm to obtain a color enhanced surveying and mapping image; s4, performing deblurring processing on the color-enhanced surveying and mapping image, calculating a Dew gray scale main value region representative, a fixed segmentation threshold value and an ambient light interference amount based on the de-noised gray scale image and the color-enhanced surveying and mapping image, and performing calculation through a dynamic segmentation threshold value to obtain a deblurred surveying and mapping image; and S5, performing registration and splicing processing based on the deblurred remote sensing surveying and mapping image to obtain a panoramic registration image.

The application discloses an omnidirectional channel prediction and dynamic coding joint decision method, system and medium, belonging to the multimedia field, and the method is applied to an FTTR gateway and comprises the following steps: determining the communication connection type of the FTTR gateway, a screened terminal and a terminal to be screened according to the IP addresses of the terminal to be screened and the terminal to be screened; determining a first available bandwidth of a video stream flowing from the FTTR gateway to the terminal to be screened and a second available bandwidth of the video stream flowing from the terminal to be screened to the FTTR gateway; determining the smaller value in the first available bandwidth and the second available bandwidth as a maximum code rate B_max available for the screen projection, and notifying the terminal to be screened of the B_max to trigger the terminal to be screened to determine target video coding parameters. The method can provide highly stable bandwidth guarantee for the screen projection service.

The utility model belongs to the technical field of decorative lighting, and particularly relates to a miniature light-emitting diode capable of realizing double colors and full colors. The problems that in the prior art, using requirements of different models cannot be met, and using safety is poor are solved. Comprising a base, a mounting plate is arranged on the base, a first LED chip and a second LED chip are arranged in an inner cavity of the mounting plate, the first LED chip and the second LED chip are connected in parallel, a connecting assembly is arranged at the bottom of the first LED chip and the bottom of the second LED chip, and a monitoring assembly used for detecting the temperature of the inner cavity of the mounting plate is arranged at the bottom of the connecting assembly. The mounting plate and the base are fixedly connected through the limiting block, a user is allowed to select simultaneous or respective lighting according to needs through a parallel connection mode, multiple tones are generated through fluorescence conversion, the color expressive force is enhanced, the visual effect is enriched, and the use requirements of different scenes are met; and the monitoring assembly can remind the user to take corresponding measures, so that the use safety is enhanced.

The utility model belongs to children's toys field especially relates to a story player with NFC switching function, including bearing shell, bearing shell inside is provided with control panel, audio frequency player and lithium cell, is provided with the watch case of mutual adaptation on bearing shell, is provided with the switch for the opening and closing of player on the top of bearing shell, is provided with NFC chip and earphone hole on one side of bearing shell, is provided with volume key on the side away from NFC chip of bearing shell, is provided with the charging port and memory card slot on the bottom of bearing shell, is provided with the shaft sleeve of penetration on watch case, is provided with small motor on the end of shaft sleeve near bearing shell, is provided with disc on the end of shaft sleeve away from small motor, is provided with round groove on disc, is provided with the broken crooked mouth on round groove, the round card of story classic scene is placed in round groove. The utility model constructs more immersive story experience environment, and simultaneously solves the pain points such as charging, electric quantity and security hidden danger with user as center, makes product have education value and humanization design.

The invention discloses a thermoplastic printing material for material stacking type color 3D printing and an optical parameter regulation and control method thereof.The thermoplastic printing material uses PLA and / or PETG as a matrix, the transparency, the light scattering characteristic and the coloring absorption characteristic are cooperatively regulated and controlled, and the target color overlapping effect of the color overlapping behavior of multiple layers of materials is combined; reverse optimization is carried out on optical parameters of the material, so that the material has limited but sufficient light transmissivity under the single-layer printing thickness, complete color development can be realized under limited-layer stacking, meanwhile, an upper-layer material cannot completely shield a lower-layer material, and color desaturation caused by too high haze is avoided, so that a stable and predictable multi-layer color stacking effect is formed; the method can be used for constructing a material stacking scheme database, and high-color quasi-color 3D printing is achieved.

The invention discloses a preparation method of lead-free metallic luster glaze, which is characterized in that a formula system is constructed by introducing lead-free raw materials such as calcium borate frits and recycling steel slag, and coloring ions (Co < 2 + >, Fe < 3 + >, Mn < 2 + > and the like) are promoted to be uniformly distributed in a network structure, so that a glaze layer is endowed with the characteristics of environmental protection, high glossiness and stable color. The production cost is effectively reduced, the remarkable problems of the traditional lead-containing glaze in the aspects of environmental protection and safety are effectively solved, and the lead-containing glaze can be widely applied to the fields of art, daily use and architectural ceramics.

The present application provides an LED lamp bead and an electronic device, wherein the LED lamp bead comprises an LED bracket, a light-emitting component, a first packaging glue and a second packaging glue. The LED bracket comprises an insulating seat and a plurality of conductive feet integrally inlaid with the insulating seat, the insulating seat is recessed from the top to form a first reflective cup and a plurality of second reflective cups arranged side by side, the conductive feet have a crystal fixing portion, and the crystal fixing portion is located in the first reflective cup and the second reflective cup; the first reflective cup is located on one side of the insulating seat, and the plurality of second reflective cups are located on the other side of the insulating seat. The light-emitting component comprises a driving chip arranged in the first reflective cup and a plurality of blue light chips respectively arranged in the second reflective cup. The first packaging glue is filled in the first reflective cup; the second packaging glue is respectively filled in the plurality of second reflective cups. The driving chip is electrically connected to the plurality of blue light chips respectively, and the second packaging glue in each second reflective cup contains different phosphors, so that the color of light emitted by each blue light chip through the second packaging glue is different.

The utility model discloses a double-blue-light combined LED package, and relates to the technical field of LEDs. The LED packaging structure comprises a packaging support and LED chips arranged in the packaging support, the number of the LED chips is two, a fluorescent glue layer is arranged on the top of each LED chip, an outer sealing glue layer covering the LED chips is arranged in the packaging support, and the LED chips are electrically connected in series. By the adoption of the technical scheme, full-spectrum simulation can be achieved, and the advantage of low cost is achieved, so that the LED lamp can be widely used for replacing a traditional three-color RGB scheme, the LED lamp can better meet the lighting requirements in different scenes through the flexible packaging technology and diversified control modes, and more comfortable and efficient lighting experience is provided for people.

The invention belongs to the technical field of near-infrared image processing and display, and discloses a cross-domain coding and decoding near-infrared image color generation system and method. The method comprises the following steps: processing a selected near-infrared image through a preprocessing module to obtain a denoised near-infrared image; inputting the visible light image and the denoised near-infrared image into a color content coding module for key content feature extraction to obtain a coded visible light color coding graph, a visible light content coding graph, a denoised near-infrared color coding graph and a denoised near-infrared content coding graph; and inputting the visible light color coding graph and the denoised near-infrared content coding graph into a cross-domain decoding module for decoding to obtain a visible light near-infrared color image, and inputting the denoised near-infrared color coding graph and the visible light content coding graph into the cross-domain decoding module for decoding to obtain a near-infrared visible light grayscale image. According to the method, the problems of noise, edge blur, color information loss, mapping inaccuracy and insufficient resolution which exist in the field for a long time are solved.

The invention discloses a backlight driving control method and system based on a Local Dimming algorithm, and relates to the field of display technology. The method comprises the following steps: determining the position of a moving object in a current frame image and a next frame image, and a boundary area of ​​the moving object; for a region image only containing the boundary area and the moving object, dividing a backlight module where a highlight region block of the current frame and the next frame region image is located into a plurality of independent control regions; for the current frame region image and the next frame region image, calculating a target brightness difference of the same control region, and sending a brightness control instruction to a control unit of the corresponding control region in advance in combination with a delayed response time; traversing each pixel point in a dark region and a highlight region in the current frame region image, and performing linear transformation on pixel points whose grayscale values ​​are lower than a dark threshold or whose grayscale values ​​are higher than a highlight threshold, so as to improve the image tailing phenomenon and avoid grayscale loss.

The invention belongs to the field of sand mills, and particularly relates to a sand milling structure for grinding water-based paint raw materials, a using method and a sand mill. The sanding structure for grinding the water-based paint raw materials comprises a grinding cylinder, a grinding rotating disc arranged in the grinding cylinder, a feeding pipe arranged on one side of the grinding cylinder and a discharging pipe arranged on the other side of the grinding cylinder, and the grinding rotating disc is of a rod pin type or turbine type structure; a plurality of jet exciters are arranged in the inner wall of the grinding cylinder, and a one-way water inlet pipe is connected to an excitation cavity of each jet exciter and used for injecting cleaning fluid into the excitation cavity in the cleaning stage. The jet flow exciter is integrated on the inner wall, in direct contact with materials, of the grinding cylinder, so that the same structure has the dual functions of actively enhancing flow field disturbance during grinding and high-pressure directional flushing during cleaning, and integration of grinding efficiency improvement and equipment self-cleaning is achieved.

The invention discloses a preparation method for synchronously generating a perovskite quantum dot and silicon dioxide aerogel composite material through color conversion, and relates to the field of quantum dot preparation, and the preparation method comprises the following steps: firstly, dissolving cesium bromide and lead bromide in anhydrous N, N-dimethylformamide, fully stirring, adding oleic acid and aminopropyltriethoxysilane, and stirring to obtain a mixed solution; performing ultrasonic oscillation to obtain a uniform precursor solution; then, mixing TEOS (tetraethyl orthosilicate) and the precursor solution, and stirring while heating to promote sol-gel conversion; adding absolute ethyl alcohol, dropwise adding ammonia water, continuously and fully stirring, and adjusting the pH value to form a uniform homogeneous sol solution; then vacuumizing and circulating nitrogen, adding a cesium oleate solution and continuously stirring to control the perovskite quantum dots to be uniformly generated in a silicon dioxide network, completing sol-gel transformation and forming a stable SiO2 (at) CsPbBr3 composite material; and finally, performing supercritical CO2 drying to finish the formation of silicon dioxide aerogel and the encapsulation of the quantum dots.

The invention relates to a quantum dot collaborative coupling mixed color display pixel structure and a device thereof, the structure comprises a first electrode, a second electrode and a containing cavity located between the first electrode and the second electrode, and the containing cavity is filled with electronic ink. The electronic ink comprises quantum dot-pigment particle complexes with at least two different colors, the complexes are formed by connecting quantum dots to the surfaces of pigment particles, and the complexes with different colors have different potentials. The quantum dots can absorb short-wavelength light and convert the short-wavelength light into fluorescent light with narrow half-peak width to increase the display color gamut, and the pigment particles are responsible for absorbing long-wavelength light to avoid color deviation. The size of the containing cavity is preferably in the range of 100 nm to 50 mm, the size of the quantum dots is in the range of 2 nm to 30 nm, and high material flexibility is provided. The display device adopts the pixel structure, has the characteristics of high brightness, wide color gamut, high color accuracy and quick response, and is suitable for various application scenes.

The utility model discloses a side entry type backlight module capable of reducing different colors, and relates to the technical field of backlight modules, the side entry type backlight module comprises a main body back plate, the periphery of the upper end of the main body back plate is fixedly provided with an edge folding coaming, and the inner side of the edge folding coaming is fixedly provided with a light bar assembly used for emitting a light source. A reflector plate is fixedly arranged at the upper end of the main body back plate, and a light guide plate is fixedly arranged at the upper end of the reflector plate; a quantum dot diffusion sheet is fixedly arranged at the upper end of the light guide plate, an upper diffusion sheet is fixedly arranged at the upper end of the quantum dot diffusion sheet, a display screen is arranged at the upper end of the upper diffusion sheet, an upper cover frame is fixedly arranged above the display screen, and the upper cover frame is fixedly installed on the periphery of the main body backboard; according to the utility model, the unpackaged blue light wafer is directly welded on the bonding pad of the PCB substrate, so that the risk of different colors caused by non-uniform mixing of fluorescent powder in the traditional LED packaging process is avoided.

The invention relates to a quantum dot collaborative coupling reflective display device and a manufacturing method thereof, the device comprises a plurality of precisely arranged pixel structures, and each pixel structure is further subdivided into sub-pixel structures of different colors so as to realize precise control of full-color display. Each sub-pixel structure comprises a first electrode, a second electrode and a containing cavity formed between the first electrode and the second electrode, and the containing cavity is filled with electronic ink. The black pigment particles and the quantum dot-pigment particle complex have different potentials under the action of an electric field and can be driven by the electric field to generate ordered migration, so that dynamic regulation and control of display contents are realized. The quantum dots can absorb incident light with a specific wavelength and convert the incident light into light with a corresponding color by virtue of unique fluorescence characteristics of the quantum dots, and the black pigment particles are responsible for absorbing light with a non-target wavelength, so that the contrast ratio is enhanced. And due to the application of the quantum dot-pigment particle complex, the display device can present richer and more accurate colors, and the visual experience is improved.

The invention discloses a virtual model processing method and device, electronic equipment and a storage medium, and the method comprises the steps: determining a transition region of a target virtual model in an illumination scene, the transition region being a region between a bright region and a shadow region on the target virtual model; obtaining target reflection information of each target pixel point in the transition area; determining a target saturation parameter of each target pixel point based on target reflection information and a preset mapping relation of saturation parameters; determining target diffuse reflection information of the target pixel point based on the target saturation parameter; and determining a pixel point value of each target pixel point based on the illumination information and the target diffuse reflection information corresponding to each pixel point. According to the method, the rendered shadow effect has more natural color transition, the color expressive force of the shadow effect is enhanced, the more real shadow effect is realized on the surface of the virtual model, the rendering effect is effectively improved, and the rendering efficiency of the virtual model is improved.

The utility model discloses a high color gamut liquid crystal display screen which comprises a liquid crystal display and a backlight module, the liquid crystal display comprises an upper glass substrate, a color filter film, a TFT, a quantum dot film layer and a lower glass substrate which are sequentially stacked from top to bottom; the backlight module is arranged on the side face, away from the quantum dot thin film layer, of the lower glass substrate. According to the utility model, the quantum dot film layer is added on the lower glass substrate, so that when a blue light part in light emitted by the backlight module passes through the lower glass substrate and reaches the quantum dot film layer, the blue light encounters the quantum dot film layer to excite more corresponding red light or blue light. In other words, through the quantum dot thin film layer, red and green components are added in light emitted by a conventional backlight module, so that the color gamut of the liquid crystal display screen is improved, the conventional mode of improving the color gamut through fluorescent powder is replaced, and the product cost is reduced.

The utility model discloses a liquid crystal display module capable of improving color saturation, which comprises a cover plate, a display screen and a backlight structure, the cover plate is provided with a display area and a frame area, the frame area is arranged around the display area, one side surface of the cover plate is provided with a QD film layer, and the QD film layer covers the display area; one side face of the display screen is attached to one side face of the cover plate, and the QD thin film layer is located between the cover plate and the display screen. One side face of the backlight structure is attached to the side face, away from the cover plate, of the display screen. According to the liquid crystal display module capable of improving the color saturation, the cover plate, the display screen and the backlight structure are arranged, the QD thin film layer is arranged on the display area of the cover plate, and through the QD thin film layer, the blue light part in the light emitted by the display screen can effectively improve the color saturation when the blue light part reaches the QD thin film layer. And after the blue light encounters the quantum dots, more corresponding red light or green light can be excited, so that the color saturation of the liquid crystal display module is obviously improved.

The invention belongs to the field of organic luminescent materials, and relates to a spirobifluorene-based narrow-emission compound and an electroluminescent device prepared from the spirobifluorene-based narrow-emission compound. The narrow emission compound has one of the following structural general formula: # imgabs0 #. The spirobifluorene-based narrow-emission compound provided by the invention is based on a multiple resonance type TADF material system, spirobifluorene is taken as a parent body, and two conjugated systems separated by a spiro bond can be customized into a bipolar material, so that the voltage of a device can be reduced; the spiro skeleton realizes a relatively rigid face-to-face configuration, and can realize effective space charge transfer and relatively high photoluminescence quantum yield for the TADF luminescent material. The device based on the electroluminescent material realizes the effective improvement of luminous efficiency and brightness, takes into account the advantage of narrow-band emission, and adapts to the development demand of the market on the high-definition display technology.

The invention relates to an organic electroluminescent compound and application thereof, and belongs to the technical field of photoelectric materials, the organic electroluminescent compound is a compound as shown in a formula 1: # imgabs0. HOMO and LUMO energy levels of the organic electroluminescent compound provided by the invention have high matching degree with adjacent energy levels, and the organic electroluminescent compound has high photoelectric conversion efficiency. According to the organic electroluminescent compound, the mobility of carriers containing the organic electroluminescent compound is relatively balanced, so that the organic electroluminescent device containing the organic electroluminescent compound has relatively low driving voltage, relatively high luminous efficiency and relatively long service life.