240 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.

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.

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 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 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 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 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.

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.

According to the EGANet polyp image segmentation method provided by the invention, the omission ratio and the error detection ratio can be reduced, and the colonoscopy accuracy is improved. The method is designed for three challenges: a ResNet50-SPD encoder is combined with space-to-depth layer downsampling, and a deconvolution decoder is matched, so that the problem of missing detection due to too small polyp size is solved; designing an edge attention module, supervising an advanced feature layer by using edge information, and coping with missing detection and under-segmentation caused by morphological differences; through data set reflection removal and color shift preprocessing, a global attention module is combined to capture long-distance dependence and channel context, and error detection caused by polyp and background similarity is processed. And finally fusing edge and global attention features to relieve over-segmentation. Experiments show that the segmentation precision of the scheme is superior to that of an existing model.

This invention discloses an underwater image enhancement method based on a diffusion model with red-dark channel prior constraints. The method includes inputting a single-frame underwater raw image into the model and passing it through a joint estimation module of red-dark channel prior and quadtree, outputting transmittance and background light. These are then encoded by a physical condition encoder to generate a physical condition vector containing spatial attenuation priors and global background light constraints. This vector is used by the diffusion network for encoding and utilizes transmittance distribution and global background light information. In the reverse denoising process, a physical consistency layer and the Jaffe-McGlamery equation are combined to construct a physical consistency residual. The residual gradient calculated based on the physical model is injected as a guiding term into the noise prediction process. The enhanced image is iteratively generated through a denoising diffusion implicit model sampling process. The enhanced image is then forward-degraded and re-rendered through a cyclic consistency reconstruction branch. The cyclic consistency loss is calculated and used for reverse optimization of network parameters. This invention can reduce the color shift problems caused by background light misjudgment and transmittance overestimation.

SOLUTION: The present disclosure provides an optical diffusion film and a polarizing plate, the optical diffusion film 100 includes a polymer film layer 101 and grains 102 dispersed in the polymer film layer 101, the grains 102 include a crystallization seed and a polymer crystal 1022 attached to a surface of the crystallization seed, and the crystallization seed is a crystallization inducing agent 1021.EFFECT: The optical diffusion film and the polarizing sheet provided by the present disclosure can enlarge the viewing angle of the display device and improve the problems of color shift and rainbow pattern.SELECTED DRAWING: Figure 1

To provide a liquid crystal display device capable of suppressing color shift, and a control method of the liquid crystal display device.SOLUTION: The liquid crystal display device includes: a plurality of gate bus lines, a plurality of source bus lines, and a plurality of pixels arranged in a display region; a source drive circuit; and a timing controller. The display region extends in a column direction and includes a plurality of first polarity regions P1 and a plurality of second polarity regions P2 arranged alternately in a row direction. The timing controller controls the source drive circuit 53a so that data signals output to a pair of adjacent source bus lines SL1R, SL2L, which are included in one of the plurality of first polarity regions and one of the plurality of second polarity regions, have the same polarity.SELECTED DRAWING: Figure 9

The present application discloses a compound, a display panel and a display device. The compound has the structure shown in Formula 1. The compound of the present application can improve the light extraction efficiency and luminous efficiency, especially the external quantum efficiency of a device, and can also effectively reduce the color shift of the device at multi-angle display.

The invention relates to an illuminated or illuminable trim part (221, 222, 223, 224, 225) of a vehicle (60) or for a vehicle (60), comprising a light source (101, 102, 103) for providing light; a cover unit (26) visible from the outside, permeable to light and causing a color shift of light that has passed through the cover unit (26), in which the light sources (101, 102, 103) comprise a white first light emitting diode (14), a cyan second light emitting diode (16), an amber or green third light emitting diode (18), and a red or blue fourth light emitting diode (20). Furthermore, the invention relates to a vehicle (60) comprising such a trim part (221, 222, 223, 224, 225).

The application provides a color cast enhancement method and device of a display device, and belongs to the technical field of image processing. The method comprises the following steps: acquiring a three-channel image of a display area of the display device when displaying a test image, and splitting the three-channel image into three single-channel gray scale images; based on an image area division mode of the three-channel image, calculating a gray scale mean value of a gray scale sub-image corresponding to each gray scale image under a current image area, so as to determine a maximum gray scale sub-image and a minimum gray scale sub-image of the current image area; subtracting the minimum gray scale sub-image from the maximum gray scale sub-image to determine a region difference value image of the current image area; performing linear transformation on the region difference value image to generate a region enhancement image; and traversing all the image areas, and constructing a target enhancement image according to the generated region enhancement image. The application can process various color cast conditions on the display area, has high adaptability, and improves the color cast processing efficiency and precision of the display device.

A display substrate and a display device, the display substrate comprising a plurality of light emitting devices, an intrinsic emission spectrum of at least one light emitting device comprising a first spectral peak and a second spectral peak, the first spectral peak comprising a first color light, the second spectral peak comprising a second color light; the display substrate displaying the first color in a first viewing angle range smaller than a first viewing angle, the display substrate displaying the second color in a second viewing angle range larger than a second viewing angle; the viewing angle being an angle between a line of sight of a viewer and a normal line of a viewing area in the display substrate, the second viewing angle being larger than the first viewing angle. The exemplary embodiments of the present disclosure utilize color shift phenomenon, emit light of multiple colors by the light emitting devices, and utilize gain of light of different wavelengths at different viewing angles to make light of different colors exit at different viewing angle ranges, thus simplifying display of signals of multiple colors.

The invention discloses a display pixel signal processing method, a display pixel driving circuit and a display device, and the method comprises the steps: adding a sub-pixel equalizer in a data driving circuit, and carrying out equalization processing on the digital gray scale signals or / and the digital voltage signals of the at least two sub-pixels sharing the same control unit in space and / or time according to a preset proportion. According to the display device, the data voltage of the sub-pixels can be balanced under the condition that the CUP area aperture ratio of the display device is increased, the color cast problem existing in the CUP area is solved, and the display effect of the display device is improved.