652 results about "Primary color" patented technology

The invention belongs to the technical field of digital image processing, and particularly discloses a low-illumination image enhancement method for simulating a foggy day degradation mechanism, and the method comprises the following steps: generating a virtual haze image; estimating atmospheric light searched by combining decreasing cutting with a genetic algorithm; coarse transmissivity calculation based on dark channel prior; refining the transmissivity graph; carrying out defogging and low-illumination enhancement on the virtual haze image; and brightness and contrast self-adaptive compensation. According to the method, the precision and robustness of atmospheric light value estimation are improved, a transmissivity graph which better conforms to a scene can be obtained, and the image restoration effect is improved; the method has remarkable advantages in the aspects of reducing artifacts, enhancing image details, denoising, keeping structural information and restoring details.

The invention discloses an RGB LED light source calibration mode optimization method and system, and the method comprises the steps: collecting the color coordinates and brightness data of a three-primary-color light source of an RGB LED, and recording the actual optical characteristics; based on the collected data, establishing a physical model of the light mixing effect of the RGB LED light source, and calculating an initial PWM duty ratio corresponding to a target color coordinate and brightness; inputting the initial PWM duty ratio into the intelligent calibration algorithm model, and optimizing and calculating the optimal PWM duty ratio; the optimized PWM duty ratio is written into an MCU, and the MCU controls mixed light output of the RGB LED according to the written duty ratio; and testing and verifying the calibration effect of the RGB LED light source, and adjusting the parameters of the intelligent calibration algorithm model according to the test result. According to the invention, the PWM duty ratio can be dynamically optimized to realize high-precision light mixing output, and rapid repair and real-time adjustment are supported. The invention belongs to the technical field of photoelectricity, and aims to solve the core problem of the existing RGB LED light source calibration technology and improve the consistency of the light source performance and the production efficiency.

The invention discloses a nitride full-color integrated miniature light-emitting diode display chip and a preparation method thereof, a columnar or halfpace-shaped table surface is formed on the surface of a silicon substrate, and then an AlN buffer layer, an AlGaN stress modulation layer, an n-type GaN layer, an InGaN / GaN composite quantum well layer and a p-type conductive layer sequentially extend on the table surface of the silicon substrate to form a miniature light-emitting diode table surface; through stress release of the side wall of the mesa and stress modulation of the AlGaN layer, tensile stress distribution which is gradually reduced from the center of the mesa to the outer ring is formed in the n-type GaN layer, so that indium component distribution in the InGaN / GaN composite quantum well layer is regulated and controlled, and the micro light-emitting diode mesa covering three primary color wavebands of red, green and blue is formed. According to the chip structure disclosed by the invention, the red, green and blue three-primary-color sub-pixels are integrated, and the difficulty of a mass transfer process of the full-color micro light-emitting diode display chip is reduced. According to the invention, the preparation of the red, green and blue three-primary-color sub-pixels can be completed only by implementing an epitaxial process once, and the process flow is simplified.

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

The invention relates to the technical field of liquid crystal display, and provides liquid crystal display equipment based on a field order and a color image display method. An image to be displayed can be decomposed into three sub-frames based on a field sequential display technology, each sub-frame corresponds to a color field, when a liquid crystal panel is driven according to a main color gray scale value of the color field corresponding to each sub-frame, at least one backlight source corresponding to each color field is firstly driven to emit backlight of a first duration within a time period when liquid crystal molecules reach a steady state, and then the backlight source corresponding to each color field is driven to emit backlight of a second duration within a time period when the liquid crystal molecules reach the steady state. The white light of the second duration is emitted after the first duration, so that the white light is added in the backlight lightening stage of each color field, the color gamut range of the color field corresponding to each sub-frame is effectively reduced, and the color separation phenomenon is reduced. In addition, each subframe corresponds to a single color field or a mixed color field, so that the color separation phenomenon in various algorithms can be improved.

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

The invention discloses a multi-wavelength high-color-difference metasurface color holographic device and a design method thereof.The method comprises the steps that firstly, a nano-column super unit is simulated and then serves as training data of a four-port neural network model, a well-trained forward prediction model is obtained, a prediction response database is constructed, and the prediction response database is used as a prediction result; and according to the phase demand of the target image, a corresponding unit structure is matched in the prediction response database, the multi-wavelength high-chromatic-aberration metasurface color holographic device is designed, and full-mode electromagnetic simulation is carried out. According to the scheme, when holographic imaging is achieved, the RGB energy efficiency is improved, and positive illumination high-efficiency metasurface color holographic imaging can be effectively achieved. The method belongs to a non-filtering type multi-wavelength high-color-difference metasurface color holographic device design method, information of three channels of red, green and blue is coded into sub-pixels at the same time, each sub-pixel responds to RGB light, and compared with a traditional mode that RGB sub-pixels respond respectively, the space utilization rate and energy efficiency of three primary colors are greatly improved.

The invention provides a color calibration processing method and electronic equipment. The method comprises the following steps: acquiring primary color information of light-emitting equipment; determining the theoretical brightness of each channel corresponding to the target color; determining the current duty ratio of each channel under the current junction temperature according to the current junction temperature, the reference junction temperature brightness of each channel and the theoretical brightness of each channel corresponding to the target color, and obtaining a color mixing output result; determining new reference junction temperature brightness of each channel and junction temperature offset of each channel; obtaining a new maximum brightness and a new current duty ratio of each channel under the current junction temperature, and lightening the light-emitting device again based on each new current duty ratio to obtain a new color mixing output result; and if the new color mixing output result meets the preset error range, taking the junction temperature offset of each channel as the calibration junction temperature offset of each channel of the light-emitting equipment, and taking the new reference junction temperature brightness of each channel as the calibration reference junction temperature brightness of each channel. And the color mixing precision of the light-emitting equipment in the whole working temperature range is improved.

The invention discloses a single-layer liquid crystal reflection type liquid crystal color display module and a preparation method thereof. The display module comprises a light absorption layer, a lower substrate, a red-green-blue three-primary-color reflection type cholesteric liquid crystal layer and an upper substrate which are sequentially arranged. The lower substrate is provided with a TFT electrode, the upper substrate is provided with a conductive indium tin oxide layer, the face, containing the TFT electrode, of the lower substrate is arranged upwards, the red-green-blue three-primary-color reflective cholesteric liquid crystal layer comprises a plurality of polyimide separating walls, and a micron-sized thin-wall container is formed between every two adjacent polyimide separating walls. And three adjacent micron-sized thin-wall containers form a group of pixel strips. Through formula improvement and process upgrading, the reflectivity of the display module is remarkably enhanced, color reflection is brighter, the visual angle characteristic of a display device is improved, the sensitivity to the observation angle is reduced, the display brightness and the light utilization rate are improved, and systematic optimization of reflection efficiency is achieved.

The present invention includes systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.

The present application belongs to the technical field of projection. Disclosed are a projection display device and a white balance adjustment method. The projection display device comprises a processor. The processor is used for: driving a primary color light source to emit primary color light, and acquiring a first color coordinate value of white light generated by mixing the primary color light; and when the deviation between the first color coordinate value and a standard color coordinate value is greater than a deviation threshold value, adjusting light emission parameters of the primary color light source on the basis of the standard color coordinate value, so that the deviation between a color coordinate value of white light generated by mixing primary color light emitted by the adjusted primary color light source and the standard color coordinate value is less than or equal to the deviation threshold value, wherein the standard color coordinate value is a white light color coordinate that the projection display device is expected to achieve. Thus, by means of accurate color control and correction, the projection display device can reduce color distortion and deviation and improve the definition and contrast of images, thereby enhancing the display stability and consistency.

The invention discloses modified ink for improving the reflectivity of a substrate of a multi-primary-color LED illuminating lamp and a preparation method of the modified ink, and belongs to the technical field of ink. The modified ink is prepared from the following raw materials: 18 to 26 parts of reflective powder, 35 to 60 parts of organosilicone modified acrylic resin, 10 to 16 parts of biphenyl liquid crystal epoxy resin, 5 to 8 parts of a photoinitiator, 3 to 6 parts of a curing agent, 1.5 to 5 parts of an antioxidant, 0.5 to 1 part of a flatting agent and 30 to 40 parts of a solvent. The composite coated core-shell titanium dioxide is adopted as reflective powder and is matched with the organic silicon modified acrylic resin and the biphenyl liquid crystal epoxy resin to prepare the modified ink, the reflectivity can reach 96% or above under the thickness of 30 microns, the yellowing resistance is excellent, the luminous efficiency utilization rate can be increased, energy consumption is reduced, and the service life of the ink is prolonged. The method can be used for preparing high-quality LED lamps with high brightness and high stability.

The invention specifically relates to an evaluation and use method of a display device applied to a color resolution task. The method comprises the following specific steps: S10101, evaluating the uniformity of brightness distribution in a display area of the display device; s10102, evaluating the function relationship between the hardware brightness level prompted by the bit depth of the display equipment and the actual brightness of the screen when the display equipment is used for displaying any one of the three primary colors for monochromatic display; s10103, when the display equipment is used, performing data conversion on the received task for color resolution; acquiring a hardware brightness level closest to a preset requirement; and S10104, evaluating the deviation between the image and the theoretical value in color brightness when the image is actually presented. According to the method, the image for the color resolution task is accurately presented through targeted evaluation and data conversion, prompting and brightness compensation can be carried out when the image presentation error meets the specified requirement, the accuracy of the color resolution task result is effectively improved, and the method is suitable for color resolution tasks in various environments and has wide application prospects.

The invention relates to the technical field of optical imaging, and discloses a single-pixel color imaging system based on multi-wavelength radio frequency marking. The system comprises a light source module used for generating three laser beams with three optical primary colors; the radio frequency driving module is used for generating a radio frequency complex frequency signal; the light path adjusting module is used for performing heterodyne interference processing on the three laser beams according to the radio frequency complex frequency signal, respectively forming a light spot array and a reference light source and then combining the beams, and generating a combined beam to be incident on a measured target; each laser beam corresponds to one group of sub light spot arrays; sub light spot arrays with aligned spatial positions exist among the three groups of sub light spot arrays; the detected target detection module is used for collecting light data generated after a detected target reflects the combined light beam; and the image inversion module is used for performing image inversion processing on the optical data to generate a true color image of the measured target. According to the system, the light spot array of multi-wavelength laser incidence can be registered in the spatial position.

Systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.

The invention provides a pathological image processing method and system, and the method comprises the steps: carrying out the color space decoupling of an original pathological image, separating a plurality of staining components corresponding to the optical absorption characteristics of a staining agent, carrying out the space alignment and channel superposition of the staining components, and generating a multi-channel structure diagram containing the structural characteristics of cells; inputting the multi-channel structure diagram into an adversarial network for color distribution correction to obtain a standardized red-green-blue three-primary color image; performing morphological optimization on the standardized red-green-blue three-primary color image by using an optimization process to obtain a mask, and performing Euclidean distance transformation on the mask to generate a distance map; performing channel splicing on the mask, the distance map and the standardized red-green-blue three-primary-color image, inputting a multi-task deep learning network, and outputting a probability thermodynamic diagram and a boundary probability diagram of a cell mass center; and cell segmentation is realized based on the probability thermodynamic diagram and the boundary probability diagram by utilizing a segmentation process, so that the problem of structural deformation of the image is effectively avoided.

According to the silicon-based OLED micro display screen, an OLED organic material layer emits white light under electric driving, intelligent judgment is performed according to display content, an optimal working mode is automatically selected, when high-saturation pure color needs to be displayed, the mode is switched to a pure color transparent mode, at the moment, a super-surface optical separation layer keeps the transparent characteristic, and the display quality is improved. The white light is directly transmitted to the color film unit with the corresponding color; when mixed colors need to be displayed, a mixed color separation mode is started, incident white light is separated into red primary light, green primary light and blue primary light according to visible spectrums, the light is accurately guided to the corresponding RGB color film units according to a preset optical path, finally, the color light which is accurately separated and guided is output through the corresponding color films, and finally a high-brightness and low-power-consumption full-color picture is synthesized. The super-surface optical separation layer is additionally arranged between the white light OLED light-emitting layer and the color filter, so that the display optical utilization efficiency is greatly improved.

The invention provides a high-dispersity polyethylene primary color master batch and a preparation method thereof, and relates to the field of polyethylene primary color master batches. The high-dispersity polyethylene-based primary color master batch comprises 40-60% of high-density polyethylene, 20-40% of a heat-stable pigment, 10-20% of a dispersant and 5-10% of a compatible agent. By selecting the specific heat-stable pigment and combining the efficient dispersing agent, the stability of the pigment in the high-temperature processing process and the uniform dispersity of the pigment in a polyethylene matrix are effectively improved, so that the color consistency and quality of the color master batch at high temperature are ensured; according to the technical scheme, the mechanical property of the color master batch is enhanced, so that the color master batch is more suitable for high-speed injection molding processing, and the preparation method in the scheme comprises accurate ratio control and efficient mixing and extrusion processes, and particularly adopts an ultrasonic mixing technology and a double-screw extruder.

The invention provides a high-dispersity polypropylene primary color master batch as well as a preparation method and application thereof, and relates to the technical field of polypropylene, the high-dispersity polypropylene primary color master batch comprises the following components in parts by weight: 1-20 parts of pigment, 55-74 parts of polypropylene, 1-3 parts of nano titanium dioxide, 1-3 parts of nano silver, 1-3 parts of tungsten trioxide and 2-5 parts of dispersing agent. 1-3 parts of a phosphate heat stabilizer and 0.5-2 parts of an antioxidant. Through the composite synergistic effect of nano titanium dioxide and nano silver and other nano materials, the uniform dispersion performance of the polypropylene color master batch in a base material is improved, pigment agglomeration is effectively prevented, and the color consistency of a final product is ensured; functional components such as tungsten trioxide and nano zirconium oxide are introduced, so that the heat resistance and the ultraviolet aging resistance of the polypropylene product are enhanced, and the polypropylene keeps stable color under long-term outdoor use conditions and is not easy to fade and degrade.

The invention relates to the technical field of display, in particular to a backlight source and display equipment. The backlight source is configured to provide m blue light with different wavelengths, n green light with different wavelengths and l red light with different wavelengths, m > = 1, n > = 1, l > = 1, m + n > = 2, and m + n + l > = 4. By increasing the number of primary colors in the backlight source, polygonal wide-color-gamut backlight is obtained, the adjustable range of the backlight is large, the lifting space of the color gamut is large, the technical difficulty is low, and the cost is low.

The invention discloses an LCOS optical illumination system for an AR-HUD projection unit, and belongs to the field of photoelectric illumination and display technologies. The system comprises an illumination light source, a collimating lens, a fly-eye lens, an optical diffuser, a wavelength selective light combination element, a polarized light conversion device, a relay lens, a PBS prism and an LCOS display chip. The illumination light source is a three-color LED light source and is composed of a red light LED, a green light LED and a blue light LED. After red primary light, green primary light and blue primary light are collimated by the collimation system, the light parallelism is optimized, the collimated light sequentially passes through the light diffusion element to optimize the light field uniformity and the fly-eye lens to eliminate the non-uniform illumination, then is unified into a single linear polarization state by the polarized light converter, is shaped by the relay system and keeps the light beam transmission quality, and finally is transmitted to the light source. And polarization state separation and light combination are realized through the PBS prism, and finally, the light is accurately coupled to the LCOS display chip, so that high-efficiency polarization state matching and imaging quality optimization are completed. According to the HUD-PGU system, the illumination brightness of the whole system is improved, the color reducibility of the system is improved, the illumination uniformity of system imaging is improved, the light energy utilization rate of the system is improved, meanwhile, the size of the HUD-PGU is reduced, and the manufacturing cost is reduced.

The invention discloses color difference detection equipment and process for production of high-wear-resistance regenerated polyester dyed cloth, and relates to the technical field of color difference detection equipment. Comprising a rack main body, a control main body is arranged at the front end of the rack main body, the rack main body is provided with a mounting mechanism for color difference detection for high-wear-resistance regenerated polyester dyed cloth production, and the mounting mechanism comprises a detection assembly and a control assembly, according to the invention, a red, green and blue three-primary-color narrow-band optical filter is adopted, and a second bevel gear and a worm connected with the second bevel gear are driven to rotate through meshing; the worm is meshed with a worm gear on the outer wall of the vertical shaft to drive the vertical shaft to rotate, and then the connecting rod drives the three sets of mounting frames to rotate synchronously, so that optical filter switching is achieved, the cloth cover chromatic aberration performance in different illumination environments can be simulated, the detection result is more accurate and comprehensive, the detection error caused by single illumination is reduced, and the detection efficiency is improved. And the comprehensiveness and the accuracy of chromatic aberration detection are improved.

The invention discloses a white light source manufacturing method and a computer readable storage medium, the method comprises the following steps: according to spectral parameters corresponding to three primary colors and a preset initialization weight coefficient, fitting to obtain a mixed color spectrum, the three primary colors including blue corresponding to blue light, green corresponding to green fluorescent powder and red corresponding to red fluorescent powder, the spectral parameters comprise peak wavelength and full width at half maximum; and according to a target white light spectrum, optimizing the weight coefficients corresponding to the three primary colors in the mixed color spectrum to obtain an optimized mixed color spectrum. Saturation and contrast of the light source can be enhanced.

Enhanced push pull driving waveforms for driving a four particle electrophoretic medium including four different types of particles, for example a set of scattering particles and three sets of subtractive particles. Methods for identifying a preferred waveform for a target color state when using a voltage driver having at least five different voltage levels.

To provide an operation device of a robot that can stop motion of the robot by a method that is different from methods using an emergency stop switch and an enable switch.SOLUTION: An operation device of a robot comprises: a display unit that displays information; a display processing unit that executes display processing for controlling contents displayed by the display unit; and a stop processing unit that executes stop processing for stopping the robot on the basis of software processing. The display processing includes processing in which a stop button which receives operation for making the stop processing unit execute the stop processing is displayed on the display unit, which enables the stop button to be displayed in an identical mode, even when the button is displayed, with only one color of a red color, a green color and a blue color of light's three primary colors, on the display unit.SELECTED DRAWING: Figure 2

The invention provides a laser and a projection device. The laser comprises a laser driving board; the light-emitting unit comprises a tube shell, a bottom plate and a plurality of laser chips; the tube shell and the bottom plate are connected to form an enclosed space for accommodating a plurality of laser chips, the plurality of laser chips are mounted on the bottom plate through a heat sink, the tube shell is made of a ceramic material, the plurality of laser chips comprise laser chips of three colors, and the plurality of laser chips are arranged in the same tube shell along a first direction; the tube shell is welded with the bottom plate, at least one of the tube shell and the bottom plate is welded and electrically connected with the laser driving plate, and the laser driving plate is used for driving the plurality of laser chips to emit laser beams. According to the invention, a plurality of laser chips with three primary colors can be packaged in the same tube shell, respective electrical connection of the laser chips with different primary colors is realized, miniaturization and integration of the laser as a light emitting unit are realized, and meanwhile, image quality improvement and volume miniaturization of projection equipment are facilitated.

The invention discloses a display method, device and system of a display screen, relates to the technical field of display, can solve the problem that an image displayed by the display screen is red or blue at a high temperature or a low temperature, and ensures better experience of a user in a use process. In the application, when the temperature deviates from the normal temperature greatly, if the difference between the temperature and the normal temperature is greater than the first threshold value, the electronic equipment can compensate the gray scale of a single-color or multi-color sub-pixel, which has a great influence on the display effect of the medium-low brightness and medium-low gray scale, in the three primary colors according to the characteristics of the display screen and the actual temperature, so that the display effect of the medium-low brightness and medium-low gray scale is improved. Therefore, the color and brightness of the display interface meet subjective visual effects and objective index requirements, and the visual experience of a user is improved.

Systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.

The utility model discloses a cover plate structure, liquid crystal display module and mobile equipment relates to display module technical field, cover plate structure includes cover plate and color change label, color change can be produced in the color change label under light irradiation, wherein the color change label is connected to the cover plate and exposes the outer edge of cover plate, or cover plate structure also includes cover plate protective film, the cover plate protective film is connected with the cover plate protective film. The cover plate protection film is located on the inner side and / or the outer side of the cover plate, and the color-changing label is connected to the cover plate protection film. According to the scheme, the color-changing label is arranged on the cover plate, when the cover plate and the liquid crystal display panel are installed, the color-changing label irradiated by ultraviolet rays changes in color, and the color-changing label which is not irradiated is still in the primary color, so that an operator can sort finished liquid crystal display modules according to the change of the color-changing label when sorting the finished liquid crystal display modules; whether the cover plate and the liquid crystal display panel are cured through ultraviolet irradiation during bonding is judged, and the quality of the liquid crystal display module is guaranteed.

The invention discloses a model rendering method, a model rendering device, electronic equipment and a storage medium, and is applied to the technical field of computer graphics. The model rendering method comprises the steps of adjusting each factor of a preset Sobel matrix based on information of a first normal map to obtain a factor deviation value, and generating a target Sobel matrix based on the factor deviation value; based on the target Sobel matrix, filtering the first normal map to generate a second normal map; performing value fusion on the second normal map and the primary color map to obtain a fused map; and performing rendering based on the fused map to generate a rendering model. In this way, the compressed fusion map can reserve more detail information, and then the rendering effect and detail performance of the to-be-rendered model are improved.