136 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 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.

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.

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

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 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.

This application discloses a material screening method and a light-emitting device. The first aspect of the material screening method involves screening the light-emitting layer material for a light-emitting device, configuring multiple groups of light-emitting materials, providing multiple groups of monochromatic light-emitting devices, using each group of light-emitting materials as the light-emitting layer material, and obtaining the electroluminescence characterization lifetime parameter T1 of the first monochromatic light-emitting device in each group of monochromatic light-emitting devices. i Simultaneously, the photoluminescence characterization lifetime parameter T2 of the second monochromatic light-emitting device in each group of monochromatic light-emitting devices was obtained. i According to the electroluminescence characterization lifetime parameter T1 corresponding to each group of monochromatic light-emitting devices i Photoluminescence characterization lifetime parameter T2 i The target luminescent material group is selected from multiple groups of luminescent materials to serve as the luminescent layer material for the luminescent device. This improves the overall luminescent lifespan of the luminescent device, thereby extending the long-term lifespan of the display panel and preventing color shift issues during long-term use.

The invention discloses a flexible DC converter valve bypass switch state monitoring method and system, and the method comprises the steps: carrying out the image enhancement of a bypass switch opening and closing image through employing a trained improved graph-to-graph generative adversarial network, and carrying out the state recognition of the enhanced bypass switch opening and closing image through employing a trained bypass switch state recognition model, according to the method, the state of the bypass switch can be directly monitored by performing state recognition on the opening and closing images of the bypass switch without depending on the integrity of an electrical loop, and the trained improved graph is firstly used for performing image enhancement on the graph generative adversarial network, so that the state of the bypass switch can be directly monitored. According to the method, the problem of image quality degradation caused by factors such as brightness change, illumination color cast and shooting angle difference is solved, the trained bypass switch state recognition model is used for state recognition, and the opening / closing state mark on the bypass switch body can be directly judged, so that the state of the bypass switch of the converter valve can be accurately and reliably monitored.

This invention belongs to the field of digital image processing and computer vision technology, and discloses a passport multispectral image correction method and system. The system includes an image acquisition and illumination component decoupling module, a bidirectional illumination distribution estimation network module based on a bilateral grid, a physical model-driven double-exposure enhanced image generation module, an adaptive multi-scale feature fusion network module, and a negative residual texture preservation and restoration network module. The passport image enhancement method proposed in this invention achieves significant breakthroughs in key technologies such as bidirectional dynamic range control under complex lighting fields, nonlinear color shift correction of optically variable inks, and lightweight inference. This invention effectively solves the OCR recognition problem caused by limitations in the acquisition box structure or ambient light interference, and lays a solid foundation of image data and algorithms for subsequent downstream tasks and applications such as automated document authentication and multispectral image analysis.

An image processing device includes a controller and an image acquiring device. The controller acquires, by using the image acquiring device, a document image including a first image, a second image, and a third image generated sequentially by using a first sensor, a second sensor, and a third sensor, respectively, the first sensor, second sensor, and third sensor being image sensors that are arranged in accordance with a predetermined order relationship along a conveying direction of a document and read color components of three colors different from each other, compares the first image, second image, and third image with each other, and determines whether the document image contains a color shift from the document, based on a result of the comparison.

A cataract classification method based on color equivariant and frequency domain attention belongs to the technical field of computer vision and medical artificial intelligence, uses eye images shot by a slit lamp as an input data source, and constructs a CFC-Mama classification network integrated with a color equivariant fusion module and a frequency domain channel attention module to classify cataracts. The model can effectively extract color robust features with unchanged equipment, and the high-frequency detail perception capability of the cataract lesion boundary is enhanced; a color isotropic convolution and cross attention fusion mechanism is adopted to solve the color shift problem caused by different imaging devices, and the cross-device robustness of feature extraction is ensured; through a frequency domain channel attention module, in combination with Fourier transform, high-pass filtering and a double-path channel attention strategy, high-frequency features of lesion boundaries are highlighted, and the fine-grained feature expression ability is improved. The invention further provides a cataract classification system based on color equivariant and frequency domain attention. According to the invention, high-precision classification of multi-granularity cataract is realized.

The invention relates to the field of intelligent wearable equipment, and discloses intelligent sleeve glasses type multifunctional liquid crystal dimming glasses which comprise a glasses frame, glasses legs are fixedly connected to the two sides of the glasses frame, a color adjusting assembly is fixedly connected to the outer portion of the glasses frame, a shell is fixedly connected to the outer portions of the glasses legs, and an interaction assembly is installed in the shell. The shell is used for communicating with a mobile terminal APP and customizing the light transmittance, and a modularized light color self-adaption and audio enhancement integrated system is installed in the shell. The light color sensing module is arranged to collect ambient light intensity and spectral information in real time, a multi-layer color adjusting assembly composed of a red dye liquid crystal layer, a blue dye liquid crystal layer and a neutral gray light reducing film is combined, and a light color compensation algorithm integrated in the central processing module is used for cooperative operation. The driving voltage of the three layers of optical films can be dynamically adjusted according to specific color temperature characteristics of ambient light and user setting, so that color cast is compensated while brightness is adjusted.

Methods for using “P” type waveforms to reduce color drift, ghosting, and other transient color shifts. While the method is most useful for regulating white state drift, related techniques can be used to address color state drift in other multi-particle color platforms, as well as in color-filter-array (CFA) electrophoretic displays. The methods help to fix color drift that may accompany partial update methods, i.e., whereby only a portion of the display panel receives update instructions from the controller between a first and a second image.

The embodiment of the invention provides a display device and a color cast improvement method thereof. The display device comprises a plurality of pixel units, a temperature detection module, a light emitting area adjusting assembly and a control module. The temperature detection module is configured to detect the temperature of the display panel and output temperature data. The light-emitting area adjusting assembly comprises a shading unit, and the shading unit is configured to adjust the area of a light-emitting area which shields the pixel unit. The control module is configured to control the light emitting area adjusting assembly to adjust the shading area of the shading unit according to the temperature data. The color cast improvement method comprises the steps of collecting temperature data of the display panel, obtaining a target shielding area parameter from corresponding relation data of preset temperature and a light emitting area ratio according to the temperature data, and generating a control signal according to the target shielding area parameter, and a control signal is sent to the light-emitting area adjusting assembly to drive the shading unit to be adjusted to the corresponding shading area. The color cast phenomenon of the display device caused by temperature change is improved.

The invention discloses a low-illumination image enhancement method based on multi-scale frequency domain and position perception. The method comprises the following steps: (1) preprocessing a low-illumination image, and converting the low-illumination image into an HVI color space to decouple chromaticity and brightness information; (2) respectively extracting characteristics of a chroma branch and a brightness branch by adopting a double-branch backbone network; (3) inputting the extracted features into a multi-scale double-attention module to carry out multi-scale context aggregation and channel-space joint attention enhancement; (4) the features are sent to a complex value frequency domain multilayer sensing module, the amplitude of the features is modulated in the frequency domain to achieve global brightness modeling and noise suppression, and meanwhile phase information is reserved to maintain structural details; (5) introducing explicit position coding between the chromaticity branch and the brightness branch to guide feature interaction through a position awareness trans-attention module, and improving space consistency and color stability; and (6) fusing the double-branch enhanced features, converting the double-branch enhanced features back to the RGB space, and outputting a final enhanced image. According to the method, a multi-scale double-attention module is included, so that the multi-scale structure representation capability is improved; the complex value frequency domain multilayer sensor module is used for realizing frequency domain global modeling and effectively inhibiting high-frequency noise artifacts under a low-light condition; a position sensing cross-attention module enhances the interspace adaptability of feature interaction between branches, thereby significantly improving the visual quality, structural fidelity and color stability of low-illumination image enhancement, and reducing the problems of noise amplification, color shift and detail loss.

This invention provides a display panel, an electronic terminal, and a method for generating driving signals. The display panel includes a first sub-pixel for emitting light at a first optimal charging time, a second sub-pixel for emitting light at a second optimal charging time, and a driving module (including at least one of a source driving module and a gate driving module) for driving both sub-pixels to emit light. The first optimal charging time and the second optimal charging time are two charging times that maximize the brightness of the first sub-pixel and the second sub-pixel in a first grayscale. The color of the first sub-pixel is the same as the color of the second sub-pixel. The first optimal charging time is not equal to the second optimal charging time. This can achieve the maximum brightness of the light emitted by each sub-pixel, which can improve the dark phenomenon of the corresponding monochrome screen or the color shift phenomenon of the mixed color screen.

A particle composition for back coating the surface of a quantum dot film, the particle composition comprising a thermosetting resin, organic or inorganic particles, and a curing agent. Quantum dot films with the particle coating composition can effectively improve color shift at large viewing angles and exhibit better brightness in displays.

A display panel and a display apparatus. The display panel (200) comprises: a base substrate (20), and a pixel circuit layer (30) and a light-emitting functional layer (50) that are sequentially stacked on one side of the base substrate (20), wherein the pixel circuit layer (30) comprises a plurality of pixel circuits, each pixel circuit comprising a plurality of thin film transistors (31); and an insulating layer (40) located between the pixel circuit layer (30) and the light-emitting functional layer (50), wherein a grating structure (41) is provided in at least part of the region of the insulating layer (40). The grating structure (41) comprises a plurality of light-shielding portions (41a) and light-transmitting portions (41b) that are arranged periodically in a first direction, wherein the first direction is parallel to the plane where the base substrate (20) is located. By means of providing a grating structure in at least part of the region of an insulating layer between a pixel circuit layer and a light-emitting functional layer, the grating structure is used to reduce the interference of external light to thin film transistors, thereby mitigating the problem of color shift caused by a light leakage current in a driving transistor.

This invention discloses a method for detecting the freshness of giant salamander meat based on color constancy and integrated intelligent vision, belonging to the fields of food safety and computer vision technology. The method includes: acquiring RAW images of the meat sample and an indicator film and resolving them into linear radiosity tensors; constructing a color correction model using a latent diffusion local redraw network and a conditional control network; synthesizing a structure-constrained virtual reference color card in a masked region; extracting ambient light source features and performing adaptive white balance compensation to output a standard color image; inputting this image into a deep network optimized by ArcFace to extract a high-dimensional feature vector; and finally inputting this vector into an XGBoost model to fit a nonlinear decision boundary and outputting a freshness rating. This invention effectively reduces color shift interference from complex light sources, improves the recognition accuracy of samples in the critical period of color change, and provides a highly robust solution for non-destructive monitoring of giant salamander meat freshness in actual market environments.

The invention discloses a display driving wafer which is used for a flexible display. The display driving wafer comprises a display control circuit and a crease compensation circuit. The display control circuit is coupled to a display screen of the flexible display and is used for providing a driving signal for the display screen according to a pixel. The crease compensation circuit is coupled to the display control circuit and is used for executing a color cast compensation method. The color cast compensation method comprises the following steps: obtaining a folding angle of a bending part of the flexible display; determining a color cast compensation value of a sub-pixel of the pixel according to the folding angle; and adjusting a sub-pixel value of the sub-pixel according to the color cast compensation value.

This invention relates to the field of flat panel display brightness adjustment technology, and discloses a method for adjusting the brightness of a flat panel display module based on multi-sensor fusion. The method includes: collecting multi-source sensor data from the flat panel display module; processing the multi-source sensor data using a dynamic feature fusion algorithm, assigning dynamic weights based on the real-time confidence level of each sensor data source through a weighted fusion mechanism to generate a brightness adjustment feature set; constructing a dynamic brightness adjustment index table, where nodes represent brightness parameters of display zones and edges represent visual correlations between display zones, and updating node attributes and edge correlation strengths in real time based on an environmental change triggering mechanism; performing hierarchical correlation expansion calculations in the dynamic brightness adjustment index table based on the brightness adjustment feature set to dynamically determine the brightness optimization domain; and generating brightness adjustment decision parameters by simultaneously analyzing color shift tolerance, power consumption constraints, and visual comfort indicators through a multi-dimensional evaluation algorithm within the optimization domain.

This application provides a display panel including a first substrate assembly, a liquid crystal layer, and a second substrate assembly. The first substrate assembly includes multiple color resists, and the second substrate assembly includes a light-shielding layer and multiple reflective elements. The light-shielding layer has multiple light-transmitting holes, each corresponding to a color resist. A reflective element is disposed on the inner wall of one of the light-transmitting holes. The multiple color resists include multiple first color resists, multiple second color resists, and multiple third color resists, which are arranged sequentially and alternately. The first color resists convert backlight into a first color light, the second color resists convert backlight into a second color light, and the third color resists convert backlight into a third color light. The reflective elements reflect the first, second, and third color lights to the oblique viewing angle of the display panel, preventing color shift in the light emitted from the oblique viewing angle of the display panel. This application also provides a display device.

To provide an electrophotographic belt with minimal toner color shift and fewer transfer defects. [Solution] An electrophotographic belt having a surface layer, wherein the surface layer contains (meth)acrylic resin, porous spherical particles, and conductive particles different from the porous spherical particles, the surface of the porous spherical particles at the outermost surface of the surface layer is covered with the (meth)acrylic resin and the conductive particles, the ten-point average roughness Rz (according to JIS B 0601-1994) of the outermost surface of the surface layer is 0.5 times or more and less than 2 times the average primary particle diameter of the porous spherical particles, and the average spacing S (according to JIS B 0601-1994) of the local peaks at the outermost surface of the surface layer is 4 times or more and less than 30 times the average primary particle diameter of the porous spherical particles.

The invention relates to an optically variable security element (12) for securing security papers, value documents and other value items, comprising at least one color-changing multilayer interference layer element (22) having a reflective layer (28), at least one absorbent layer (24) and at least one dielectric spacer layer (26) between the reflective layer (28) and the at least one absorbent layer (24), due to its layered structure, the multilayer interference layer element (22) produces an intrinsic color shift effect with a first color when viewed from a first viewing direction and with a second, different color when viewed from a second viewing direction. According to the invention, a blue light absorber (32) having an absorption edge in the wavelength range of 380 nm to 460 nm is arranged above and / or below the at least one multi-layer interference layer element (22), said absorber selectively absorbing a blue light component in order to vary the intrinsic color shift effect of the at least one multi-layer interference layer element (22), the security element (12) is configured such that the security element (12) exhibits a modified color shift effect between a third color when viewed from the first viewing direction (40) and a fourth color which is different when viewed from the second viewing direction (42), the third color being different from the first color in hue and / or color purity, and the fourth color being different from the first color in hue and / or color purity. And / or the fourth color differs from the second color in hue and / or color purity.