296 results about "Color shift" patented technology

This application relates to a display panel and a display device. The display panel includes an array substrate, a light-emitting layer, an isolation structure, and a touch layer. The light-emitting layer is located on one side of the array substrate and includes multiple light-emitting units, which in turn include several light-emitting unit groups. Each light-emitting unit group emits a single color of light, and each light-emitting unit group includes at least one light-emitting structure disposed along a first direction. The isolation structure is located on one side of the array substrate and includes an isolation opening, in which the light-emitting units are disposed. The touch layer includes touch traces disposed on the side of the isolation structure facing away from the array substrate. At least a portion of the orthographic projection of the touch traces in the thickness direction of the display panel is disposed around at least one light-emitting structure and is symmetrically arranged with respect to a first axis of symmetry passing through the centroid of the at least one light-emitting structure. The first axis of symmetry is parallel to the first direction. This application can effectively reduce the possibility of color shift.

The invention relates to an underwater image enhancement method based on wavelet Mama, which aims at the problems of color shift, low contrast ratio and fuzzy details of an underwater image, extracts shallow layer features of an underwater low-quality image, inputs the shallow layer features into a multi-scale coding network, and performs joint enhancement on low-frequency color information and high-frequency detail features by using a wavelet Mama unit. Global semantic features are obtained by combining down-sampling layer-by-layer compression, and global modeling of color offset correction and contrast enhancement is completed; the spatial resolution is recovered through up-sampling, and reconstruction and enhancement of texture details and color information are realized in combination with jump connection and a wavelet Mama unit; and finally, the features are mapped to an image domain and fused with input image residual errors, and an enhanced underwater image with natural color, clear texture and balanced contrast is generated. According to the method, frequency domain-space domain joint feature modeling is realized through the wavelet Mama unit, and the color authenticity, the structural definition and the detail perceptibility of the underwater image are remarkably improved.

The invention relates to the technical field of intelligent driving, and discloses a defogging embedded system and method for an intelligent driving vehicle-mounted camera, and the method comprises the steps: obtaining original image data collected by the vehicle-mounted camera, and analyzing the brightness distribution, color shift and texture features in an image; based on the image degradation feature information, performing preliminary enhancement processing on the image by adopting an edge guided filtering and brightness adaptive mapping algorithm to generate an initial enhanced image; carrying out fog distribution estimation on the initial enhanced image, carrying out detail restoration and color compensation in combination with a lightweight image reconstruction strategy, and dynamically improving the image quality through an iterative optimization mode; performing definition evaluation on the optimized image, and measuring the fuzzy degree change trend and the structural similarity; and in combination with the finally output clear image, performing target identification and feature extraction operation, and performing accuracy evaluation on an identification result. The method has the advantage of improving the definition of the intelligent driving image.

A display device may include a display panel which includes pixels, a data driver which provides data voltages corresponding to output image data to the pixels, and a data converter which generates a compensation grayscale from reference compensation values for compensating at least one selected from a color shift and a luminance shift corresponding to a temperature based on an input temperature, an input grayscale included in input image data, and an input luminance, and converts the input image data into the output image data based on the compensation grayscale.

The invention relates to the technical field of intelligent lighting control, and discloses a light color shift control method and system, and the method comprises the following steps: S1, receiving target color data and shift parameters through a user interaction interface; s2, acquiring an environment color temperature Tamb by using an environment light sensor, and monitoring an LED module junction temperature Tled through a PT1000 type temperature sensor; s3, calculating a color compensation parameter based on the offset parameter in the step S1 and the sensor data in the step S2; and S4, generating a PWM driving signal through an improved HSV-RGB bidirectional conversion model. By receiving the target color data and the offset parameters and collecting the environmental color temperature and the LED module junction temperature data, basic input and real-time state information are provided for color compensation calculation, so that the system can dynamically adjust the color parameters in combination with user requirements and environmental equipment states, and the pertinence and environmental adaptability of color control are improved.

The invention provides an embedded image enhancement method and system for a large-target-surface image sensor. According to the method, temperature gradient distribution and environment humidity data of a large-target-surface image sensor are collected, and an environment parameter matrix and a temperature noise mapping model are constructed in an associated mode; and correcting optical distortion of the incident light signal by using the liquid crystal modulator array, and outputting an original image. Then through a double-path module, a main path extracts noise features, and an auxiliary path separates color shift features caused by humidity; and verifying the physical consistency of the characteristics based on a thermodynamic equation and screening effective data. And finally, dynamically optimizing the image contrast, the dynamic range and the target details by the embedded processor, and outputting an enhanced image. Through environmental parameter modeling, dual-path feature separation and physical verification, temperature and humidity interference is effectively suppressed, and detail enhancement and color fidelity of the large-target-surface image sensor are improved.

A display panel (30) and a display apparatus (10). The display panel (30) comprises a color filter substrate (100), an electronic-paper layer (400) and an array substrate (500), wherein the array substrate (500), the electronic-paper layer (400) and the color filter substrate (100) are sequentially arranged. The color filter substrate (100) comprises a color filter base (110) and a color resist layer (200), wherein the color resist layer (200) is arranged on the color filter base (110), the color resist layer (200) comprises a plurality of color resists (210), the plurality of color resists (210) are spaced apart, a blank area (280) is arranged between two adjacent color resists (210), at least one optical channel (270) is arranged in each color resist (210), the optical channels (270) penetrate the color resist (210), and a portion of light passes through the optical channels (270) to irradiate the electronic-paper layer (400). By means of the design of the optical channels (270) of the color resist layer (200), the overall brightness of the display panel (30) is improved, and contrast ratio degradation and the occurrence of color shift of the display panel (30) are avoided.

The invention relates to a dynamic color cast compensation Demura method and system and a display screen, and belongs to the technical field of display. Comprising the following steps: collecting a white light channel picture, obtaining relative brightness data, calibrating the relative brightness data, and constructing a mapping function; according to the function, converting the relative brightness data to obtain first Lab data; obtaining a Lab data initial value of a to-be-compensated screen; calculating a color difference value according to the Lab data initial value and the first Lab data; performing visual perception weighted deviation conversion on the difference value to obtain color deviation; calculating a dynamic compensation weight according to the deviation; obtaining a color deviation evaluation index according to the weight and the color deviation; and generating second Lab data according to the evaluation index and the gradient vector of the color difference value, and performing inverse operation on the second Lab data to obtain a Demura compensation value. According to the invention, through joint compensation of brightness and chromaticity, chromaticity compensation missing is avoided, and meanwhile, through a dynamic compensation weight mechanism, noise amplification in a low-brightness interval is avoided, and the color uniformity of a display screen is improved.

The invention is suitable for the technical field of electric power line inspection, and provides an improved YOLO network-based electric power line metal corrosion detection and region segmentation method, which comprises the following steps of: aligning a collected visible light image and an infrared spectrum image at spatial positions; after carrying out defogging processing on the visible light image, judging whether the defogged image has a corrosion region or not based on the color shift feature and the texture distortion feature; if yes, inputting the visible light image and the infrared spectrum image into an improved YOLO-MA network for processing, and outputting the classification probability and confidence of the corrosion area; inputting the corrosion area with the classification probability and the confidence higher than a preset threshold value into a preset segmentation network, and determining a corrosion level corresponding to the corrosion area; and generating a visual report according to the corrosion level, and superposing the corrosion region bounding box, the segmentation mask and the corrosion level on the original image. The detection efficiency is improved while the omission ratio is reduced, and the real-time monitoring and maintenance requirements of complex industrial scenes are met.

The invention relates to a visual angle color cast correction method for a transparent display screen and related equipment, and the method comprises the following steps: carrying out the spectral data collection of a plurality of preset visual angle positions of the transparent display screen, and obtaining a visual angle spectral distribution matrix; performing color gamut space mapping on pixel units of the transparent display screen based on the view angle spectral distribution matrix to obtain a view angle dependent color shift feature map; performing color correction compensation calculation on the view-angle-dependent color offset feature map to obtain a multi-dimensional color offset compensation lookup table; performing pre-distortion processing on a driving signal of the transparent display screen based on the multi-dimensional color cast compensation lookup table to obtain a visual angle self-adaptive driving control signal; and controlling the transparent display screen to perform color cast correction based on the visual angle self-adaptive driving control signal, thereby solving the technical problems that the compensation effect is limited and even color distortion is aggravated under some extreme visual angles due to the fact that mutual optical interference among pixels is often ignored in the correction process in the prior art.

The invention relates to a display panel and a display device, and relates to the technical field of display, the display panel comprises pixel rows arranged along a first direction and pixel columns arranged along a second direction, and the pixel rows and the pixel columns comprise a plurality of sub-pixels; each sub-pixel comprises a light-emitting layer and a cathode layer, the cathode layer is located on one side of the light-emitting layer, and the cathode layer comprises cathode blocks; the sub-pixels comprise a first color sub-pixel and a second color sub-pixel, the cathode block corresponding to the first color sub-pixel is connected with the first signal line, the cathode block corresponding to the second color sub-pixel is connected with the second signal line, and the voltage of the first signal line is different from that of the second signal line. Therefore, through the patterning design of the cathode, the cathode voltage of the sub-pixels with different colors can be independently adjusted, the transmittance of the display panel can be improved, the power consumption is reduced, and the brightness uniformity and the Jinjin color cast are improved.

A golf ball has a core, a cover layer, and a color-shift material incorporated into at least one of the cover layer or a coating applied to the cover layer. The golf ball also has an alignment indicator that provides an intended target strike location on the golf ball. The color-shift material causes the golf ball to exhibit a localized color-shift effect upon application of pressure in the form of a strike by a golf club. The color-shift effect comprises a shift between a first color and a second color and measured as a deltaE of greater than 2 when the change of pressure is within a target range. The color-shift material and the alignment indicator provide feedback regarding an actual strike location relative to the intended target strike location.

The invention belongs to the technical field of image processing, and particularly relates to an image shadow removal method based on a double-branch network. The method comprises the following steps: acquiring a shadow image to be processed and a corresponding mask image, and preprocessing the shadow image and the mask image to obtain a shadow region image and a non-shadow region image; respectively sending the shadow region image and the non-shadow region image into a shadow removal branch network and an identical mapping branch network for processing to obtain a shadow removal region image and a mapping image; performing pixel-by-pixel addition on the shadow-removed area image and the mapping image to obtain a preliminary shadow-removed image; the image with the shadow removed preliminarily is sent to a color restoration module for color restoration, and a clear image with the shadow removed is obtained; according to the method, shadow removal can be effectively realized, the color shift problem in a shadow removal result can be alleviated, and the method has a good application prospect.

The invention provides a physical guidance-based sparse coding-driven underwater image enhancement method, a program, equipment and a storage medium. The method comprises the following steps: constructing a physical guidance preprocessing method based on a Jaffe-McGammy model, and adaptively estimating an underwater transmission image and background light to realize preliminary degradation recovery; elastic regularization sparse coding is adopted, and through sparsity and smoothness combined constraint, salient structure information such as edges and textures of the image is effectively extracted, so that the image definition and the detail recovery capability are enhanced; cross-channel attention fusion is adopted, a multi-scale context modeling and channel interaction mechanism is introduced, and a physical degradation graph is combined for guidance, so that color consistency and semantic expression integrity between channels are remarkably improved, and the problems of color shift and information loss in an existing method are solved. According to the method, through joint optimization of multiple loss functions, the constructed underwater image enhancement network keeps the illumination accuracy, texture continuity and structural integrity of the image in multiple dimensions at the same time.

A display apparatus includes a first conductive layer and a first conductive line arranged in a first pixel area; a second conductive layer and a second conductive line arranged in a second pixel area; a first pixel electrode in which a first emission area is defined; a second pixel electrode in which a second emission area is defined. A first hole and a second hole are defined in a first insulating layer. The first conductive layer and the first conductive line electrically contact each other in the first hole. The second conductive layer and the second conductive line electrically contact each other in the second hole. The first emission area overlaps the first hole in a plan view. The second emission area does not overlap the second hole in a plan view.

Systems and methods for color correction of images are described herein. An example method includes receiving, at a first time and a second time: first and second image data from an imaging device of a medical imaging system captured during a medical procedure; and first and second values of an operating parameter of a light source of the medical imaging system, wherein a color of light emitted from the light source is shifted based on the values of the operating parameter. A first color shift is determined based on the first value, and a color correction function is applied to the first image data to compensate for the first color shift to generate first color corrected image data. Second color-corrected image data is generated by determining a second color shift based on the second value and applying a color correction function to the second image data to compensate for the second color shift.

A composition including a first color shifting pigment flake population having a first D50 particle size; and a second color shifting pigment flake population having a second D50 particle size that is different from the first D50 particle size, wherein the first color shifting pigment flake population and the second color shifting pigment flake population have a similar face color and color shift is disclosed. An article including the composition is included. A method of making the composition and a method of making the article are also disclosed.

The invention discloses a preparation method and application of a protective film with an anti-blue-light function, and belongs to the technical field of optical thin films, and the protective film with the anti-blue-light function is obtained by coating the upper surface of a transparent substrate with a wear-resistant layer, coating the lower surface of the transparent substrate with an anti-blue-light layer, coating the surface of the anti-blue-light layer with adhesive layer slurry and pasting a release film. The blue light absorbent formed by mixing aluminum-doped zinc oxide, N-doped titanium dioxide and diosgenin is added into the slurry of the blue light preventing layer in the protective film, the adopted raw materials are safe and harmless, overlapping and combination of light absorption ranges of the three materials are achieved by means of doping and mixing, harmful blue light is absorbed, meanwhile, beneficial blue light is reserved, and color cast is weakened. The protective film prepared by the invention has an excellent anti-blue light effect, good light transmittance and no color cast problem.

A color image forming apparatus includes a photoconductor on which an image is formed; an optical writing device to expose the photoconductor with light, the optical writing device including: a light emitter to emit light; a deflector including a multifaceted reflector rotationally driven to deflect the light emitted from the light emitter to scan the photoconductor with the light in a scanning direction; a synchronization detector to detect a write start timing of the light to be irradiated onto the photoconductor from the deflector; circuitry configured to: control the light emitter to emit light; and correct a detection shift of the synchronization detector generated by a fluctuation of a light amount of the light incident on the synchronization detector; and adjust the write start timing to correct a color shift.

A display may include light-emitting diode (LED) pixels. Each LED pixel may include both narrow-viewing-angle subpixels and wide-viewing-angle subpixels. Each LED pixel may include driver circuits that each drive a narrow-viewing-angle subpixel and a wide-viewing-angle subpixel of the same color. An emission logic circuit may direct a drive current from a drive circuit to one or both of a narrow-viewing-angle subpixel and a wide-viewing-angle subpixel of the same color. To correct for off-axis color shift, a pixel may include a green subpixel with two or more overlapping microlenses, a blue subpixel with two or more overlapping microlenses, and a red subpixel without any overlapping microlenses.

The invention provides a vehicle all-round view image generation method and device, a medium and equipment. The method comprises the following steps: converting a target video stream transmitted by a target camera into a top view video stream; performing image correction processing on the current frame image; carrying out image stabilization processing on the current frame image after image correction processing by adopting an image stabilization algorithm; performing color cast and brightness consistency correction on the current frame image after image stabilization processing; and according to the target mask image, splicing processing is performed on the current frame image after consistency correction so as to obtain a current spliced image, and the target mask image is a mask image corresponding to the target camera. The finally generated surround-view image has the characteristics of uniform color and uniform brightness, can adapt to airport environment requirements under different illumination conditions, provides clear and stable surround-view images for drivers, and significantly improves the driving safety and operation convenience of airport special vehicles in a complex environment.

The utility model provides a display substrate and a display device. The display substrate comprises a substrate and a pixel unit. The pixel unit is located on one side of the substrate. Each pixel unit comprises a first electrode, a light-emitting functional layer and a second electrode. The first electrode is positioned on one side of the substrate; the light-emitting functional layer is located on the side, away from the substrate, of the first electrode. The second electrode is located on one side of the light-emitting functional layer away from the first electrode. The first electrode, the light-emitting functional layer and the second electrode form an optical microcavity. One pixel unit comprises a plurality of light-emitting areas, and for the plurality of light-emitting areas of the same pixel unit, the cavity length of the optical microcavity has a plurality of different values, so that the problems of brightness attenuation and color cast caused by the change of a visual angle are solved.

This application provides a display panel and a display device. The display panel includes a light-emitting device layer and a color filter layer. The light-emitting device layer includes light-emitting devices. By stacking three sub-filter layers of different colors in sequence to form the color filter layer, light leakage can be prevented and the reflectivity of the display panel can be reduced. By setting openings in the portions of the two sub-filter layers with colors different from the light-emitting devices corresponding to the light-emitting devices, the light emitted by the light-emitting devices can pass through the openings, thereby ensuring the luminous efficiency and color purity of the display panel. The sub-filter layers with colors different from the light-emitting devices around the openings can absorb some of the large-angle light emitted by the light-emitting devices. This not only avoids lateral light leakage between adjacent light-emitting devices that leads to color mixing, but also reduces the attenuation of the light emitted by the light-emitting devices at large viewing angles, thereby improving the color shift of the display panel at large viewing angles.

A light-emitting diode (LED) die, a wafer of LED dies, and methods of manufacturing at least one LED die are described. The LED die (1000) includes a semiconductor stack configured to emit a pump (blue) light when energized and a wavelength converter over the semiconductor stack. The wavelength converter converts some of the pump light to a converted light having a differing color. The LED die further includes a spatially inhomogeneous dichroic filter (blue DCF 1008) on the wavelength converter. Said filter is configured to at least one of: - increase reflection of the pump light in special regions of peak luminance, - increase reflection of the converted light in spatial regions of low luminance, - increase transmission in at least a portion of the converted light in spatial regions of peak luminance, or - increase transmission of the pump light in spatial regions of low luminance.

The invention discloses a flexible screen-based multimedia electronic equipment curved surface adaptive adjustment system, and belongs to the technical field of curved surface multimedia electronic equipment curved surface adjustment. The invention discloses a flexible screen-based multimedia electronic equipment curved surface self-adaptive adjustment system. The system comprises a data acquisition module, a data analysis module and a self-adaptive adjustment module. According to the invention, the problem that the brightness or color shift is easily caused by the change of the visual angle when the user stays on the flexible screen electronic equipment and the watching effect is influenced because the brightness and chromaticity shift of the curved surface of the multimedia electronic equipment cannot be adjusted according to the visual angle range of the user in the prior art is solved; visual effects of a user at different viewing angles can be optimized, consistency of brightness and chromaticity of an image at different viewing angles is ensured, brightness or chromaticity shift caused by viewing angle change is avoided, the problem of uneven curved surface of the multimedia electronic equipment caused by pixel point difference can be reduced, expression of each pixel point can be optimized, and user experience is improved. And the uniformity and the accuracy of the whole picture are ensured.

The invention relates to a method for color control of a printing press (3) for a printing job on a non-white printing substrate by means of a computer (4), wherein, for carrying out the printing job, the printing press (3) first undercoats the printing substrate with an opaque white color and subsequently applies the actual printing color to the undercoat, wherein the color control with regard to the application of the opaque white color and the application of the printing color is calibrated by means of a computer-supported analysis of at least one test sample (8, 9) which is printed, characterized in that, within the calibration scope of the color control, the computer (4) optimizes the application of the opaque white color and the application of the printing color in accordance with the color values (7) of the non-white printing substrate.

An embodiment of the present application provides an OLED device and a display device. The OLED device includes a substrate, an OLED unit disposed on the substrate, and a packaging film covering the OLED unit. The OLED unit includes a plurality of light-emitting elements, and the plurality of light-emitting elements include at least one red light-emitting element, at least one green light-emitting element, and at least one blue light-emitting element. The packaging film includes an organic film layer and at least two inorganic film layers. Each film layer is configured by thickness and refractive index so that the color shift locus of the white light image quality of the OLED device extends in the cyan direction during the process of increasing the viewing angle. Thereby, the colors visually observed by the user are always maintained in the cool color system, reducing the color system change, and thus improving the visual effect. In addition, both cyan and white belong to the cool color system, and the extension of the color shift locus in the cyan direction will not cause obvious discomfort to the user, and the user can obtain a better visual experience.

A pixel arrangement structure, a display panel, and a grayscale control method are related. In each pixel group of the pixel arrangement structure, a number of first type pixels is equal to a number of second type pixels. A number of high grayscale sub-pixels, a number of first low grayscale sub-pixels, a number of second low grayscale sub-pixels, and a number of third low grayscale sub-pixels are all equal. For each pixel group, a ratio of the high grayscale sub-pixels to the low grayscale sub-pixels is one to three to improve a display color shift.

The application relates to the technical field of display, and discloses a self-adaptive color deviation compensation method and device of a liquid crystal display screen and a storage medium, the method comprising the following steps: collecting real-time ambient light change data, and generating ambient light feature data set; analyzing the mapping relationship between screen color deviation and light parameters in the ambient light feature data set, determining the interference mode of ambient light on screen color; constructing a color rule database according to the interference mode, and generating a reference data matrix for real-time color deviation compensation; generating a self-adaptive color adjustment curve based on the reference data matrix, determining color compensation parameters under different ambient light conditions; and generating a color compensation scheme according to the color compensation parameters, and adjusting the color presentation of the display screen in real time. The application solves the problem of screen color deviation of the liquid crystal display screen under complex and changeable light environments, realizes real-time correction of the liquid crystal display screen, and ensures the accuracy of color display under different light environments.

The present invention discloses a display panel and a display device. The display panel includes a substrate, and a plurality of sub-pixels and a plurality of microlenses sequentially located on one side of the substrate. The plurality of sub-pixels include a first sub-pixel and a second sub-pixel, wherein the perimeter-area ratio of the first sub-pixel is greater than the perimeter-area ratio of the second sub-pixel. The plurality of microlenses include a first microlens and a second microlens. The vertical projection of the first microlens on the substrate covers the first sub-pixel, and the edge of the vertical projection of the first sub-pixel on the substrate is separated from the edge of the vertical projection of the first microlens on the substrate by a first distance along a first direction. The vertical projection of the second microlens on the substrate covers the second sub-pixel, and the edge of the vertical projection of the second sub-pixel on the substrate is separated from the edge of the vertical projection of the second microlens on the substrate by a second distance along the first direction. The number density of the first microlenses is less than the number density of the second microlenses, and / or the first distance is greater than the second distance. By differentially arranging the microlenses, the problem of display color shift is solved.