365 results about "Pixel density" patented technology

The invention relates to the technical field of computer vision, in particular to a defect segmentation positioning method and system for an inorganic mineral casting image, and the method comprises the following steps: calling an illumination image to analyze brightness, matching exposure parameters, splicing the image, analyzing a gradient, recognizing a defect, screening an effective region, calculating a gray variance, and constructing roughness weight recognition texture features. According to the method, the high-reflection area identification, the brightness gradient analysis, the pixel-level roughness weight and the structure tensor analysis are combined, the exposure interval can be dynamically adjusted when the casting image is processed, the defect type information is output in the direction, and the positioning information is generated by correcting the recognition position in combination with the actual coordinate of the target spot. The method has the advantages that the high-reflection area identification, the brightness gradient analysis, the pixel-level roughness weight and the structure tensor analysis are combined; the method has the advantages that the method is simple and easy to implement, detail loss of overexposure areas is reduced, the recognition precision of defect areas is improved, accurate area segmentation and classification processing are achieved, roughness weight calculation combining gray variance and pixel density is combined, the sensitivity to surface fine defects is enhanced, and the precision and reliability of defect positioning are improved.

The invention discloses a wide-angle image acquisition and processing system for underwater target identification, which relates to the technical field of image processing and target detection, and comprises an image acquisition and preprocessing module for acquiring an underwater image, removing initial noise through a preset filter, processing an enhanced grayscale image by adopting image smooth combination, and obtaining an underwater image; the pixel density gradient calculation module is used for calculating a multi-direction pixel density gradient by adopting a horizontal direction convolution kernel and a vertical direction convolution kernel of a Sobel operator according to the enhanced grayscale image, and obtaining a gradient intensity graph through gradient amplitude calculation; according to the wide-angle image acquisition and processing system for underwater target recognition, through multi-level feature fusion and classification positioning, the detection precision and positioning accuracy of an abnormal region in an underwater complex environment are remarkably improved, and efficient technical support is provided for underwater target recognition.

The invention provides electronic equipment. The electronic device includes a display panel; the anti-glare optical layer is arranged on the light emitting side of the display panel, the anti-glare optical layer comprises a substrate and a microstructure layer, the microstructure layer is arranged on the surface of the substrate in the thickness direction of the substrate, and the microstructure layer comprises a plurality of microstructure units; wherein the size of a single microstructure unit is in direct proportion to the pixel density of the display panel. The electronic device can inhibit the flash point phenomenon and improve the visual definition of the displayed image while achieving the anti-glare performance.

A display screen includes a first display area, which is provided with a first pixel unit array, and a second display area, which is provided with a second pixel unit array, wherein the pixel density of the first display area is less than that of the second display area, the first display area includes a first sub-area and a second sub-area, and the second sub-area is connected to the first sub-area and the second display area; and the display screen further includes a pixel driving unit array, which is arranged in the second sub-area, wherein each pixel driving unit respectively drives each first pixel unit, a first number of rows of pixel driving units are arranged corresponding to a second number of rows of first pixel units in a row extension direction, and the first number is greater than the second number. Also disclosed is an electronic device.

Detailed camera systems and methods achieve rich light field sampling within limited cost and power constraints. Exemplary arrangements include designs for heterogeneous array cameras, including multifocal arrays, arrays matching depth of field to have uniform pixel density, array-aware focus, exposure and frame rate control, multispectral arrays, and multiscale arrays. One embodiment incorporates lens assemblies of two different types: a first type in which all lens elements move under control of a focus actuator, and a second type in which only some of the lens elements move under control of a focus actuator—the others are stationary. A great number of other features and arrangements are also detailed.

An electronic device may include a display and an optical sensor formed underneath the display. The display may have both a full pixel density region and a high-transmittance region that overlaps the optical sensor. To increase the transmittance of light through the high-transmittance region of the display, emissive sub-pixels in the high-transmittance region may be shorted together. Each emissive sub-pixel may be shorted to an emissive sub-pixel of the same color. The emissive sub-pixels in the high-transmittance region of the display may have the same layout but smaller sizes relative to the full pixel density region of the display. The thin-film transistor sub-pixels in the high-transmittance region may be consolidated horizontally and / or vertically to produce larger continuous high-transmittance areas.

A display substrate, a driving method thereof, and a display device. The display substrate includes: a first display sub-region including a plurality of first repeating regions each including a first pixel unit and a second pixel unit disposed adjacently, the first pixel unit including a first sub-pixel and a second sub-pixel, and the second pixel unit including a second sub-pixel and a third sub-pixel; and a second display sub-region including a plurality of second repeating regions each including a third pixel unit and a first transparent pixel, the third pixel unit including a first sub-pixel, a second sub-pixel and a third sub-pixel; the first transparent pixel is configured such that a pixel density of the second display sub-region is less than a pixel density of the first display sub-region, and a light transmittance of the second display sub-region is greater than a light transmittance of the first display sub-region.

The invention discloses a cradle head dynamic control method and device, and the method comprises the steps: obtaining a two-dimensional pixel coordinate of a target object on a display plane, converting the two-dimensional pixel coordinate into a physical space coordinate through a coordinate conversion algorithm, and obtaining the pixel offset of the target object relative to the center of a cradle head; based on the pixel offset and the pixel density parameter, performing angle calculation by using a trigonometric function calculation module to obtain rotation angle parameters required by the horizontal axis and the vertical axis of the holder; pWM control signal conversion is carried out on the rotation angle parameter, a corresponding number of pulse waveforms are generated through a stepping motor driving module, and a holder double-shaft motor is controlled to rotate; and based on the deviation value between the current position of the holder and the target angle, real-time error correction is performed by adopting a PID control algorithm, so that the holder tracks the target object in real time and keeps pointing to the position of the target object. Through the solid geometry correction technology, the problems of precise positioning and dynamic tracking of a traditional pan-tilt control system in a complex scene are solved, and the precision and stability of pan-tilt control are improved.

The present disclosure relates to a display substrate, a display panel, a display device, and a manufacturing method of the display panel. The display substrate display substrate includes a display area, the display area including: a plurality of sides, wherein adjacent sides of the plurality of sides intersect to form a plurality of corners; a first display area having a first pixel density; and a second display area having a second pixel density lower than the first pixel density, wherein the second display area is located in at least one of the corners.

The utility model relates to the field of Micro-LED display, in particular to a vertically stacked three-color full-color Micro-LED structure, which is characterized in that the vertically stacked three-color full-color Micro-LED structure comprises a driving circuit, a first chip, a second chip and a third chip are sequentially arranged on one side of the length direction of the driving circuit from top to bottom, and the first chip, the second chip and the third chip are arranged on the other side of the length direction of the driving circuit. The length of the first chip is larger than that of the second chip, and the length of the second chip is larger than that of the third chip, (1) the space occupation caused by transverse tiling in the Micro-LED array is reduced, the pixel density of a display screen is remarkably improved, the area of full-color pixels is reduced, the overall size of the screen is reduced, and the size of the display screen is reduced; according to the invention, the structure is simple, the structure is compact, the structure is simple, the structure is especially suitable for high-precision, high-resolution and miniaturized display equipment, the influence of high-energy photons of blue light or green light on the red light chip is effectively reduced, each chip pole can be directly and vertically connected to the driving circuit at the bottom, the occupied space is reduced, and the problems of complicated pole extension and connection in a traditional stacked structure are avoided.

A driver assistance system for a vehicle, the driver assistance system comprising a camera mounted on the vehicle and configured to capture one or more images inside and / or outside of the vehicle, and a processing unit, wherein the camera has a defined field of view (FOV), the camera comprises an optical lens that causes a distortion of the captured images, the processing unit is configured to perform distortion compensation on the images captured by the camera, wherein a pixel density in the resulting compensated images is increased in defined areas of the image due to the distortion, and the defined areas of increased pixel density in the compensated images correspond to a region of interest (ROI) within the image, wherein the ROI is smaller than the FOV of the camera.

According to the image sensor manufacturing method based on the guided self-assembly technology, the guided self-assembly technology is applied to a deep groove patterning process on the back face of a wafer and is combined with a photoetching technology, so that compared with a traditional deep groove patterning process utilizing a PTD or NTD photoetching technology, the deep groove patterning process has the advantages that the deep groove patterning process is simplified; according to the invention, the resolution limit of the photoetching technology can be broken through, the pixel pitch can be reduced, the cost advantage and the pixel density can be improved, the pixel resolution can be greatly improved, the edge roughness of the deep trench isolation pattern of the pixel can be improved, and the signal crosstalk between the adjacent pixels can be reduced.

The invention relates to the technical field of applet interface design, and discloses an adaptive design method and system based on an applet interface. The method comprises the following steps: acquiring screen parameters, image resolution, pixel density and screen size of the terminal equipment, and user operation habit data, such as touch frequency and interface staying duration; and generating equipment adaptive feature vectors according to the data so as to describe terminal equipment display characteristics and user interaction preferences. And constructing an interface element dynamic layout model, and calculating the relative position and the size proportion of the interface component through the model according to the equipment adaptive feature vector. And monitoring a transverse and vertical screen switching event of the terminal equipment in real time, and once the event is monitored, triggering the interface element dynamic layout model to recalculate. And sending the recalculated interface component layout data to a rendering engine to complete the adaptive updating of the applet interface. According to the method, the user experience of the applet on different devices can be effectively improved, and the adaptability and flexibility of the applet to various terminal devices are enhanced.

The utility model relates to a display panel and a display device. The display panel comprises a pixel layer and a shading layer. The pixel layer comprises a plurality of pixel units, each pixel unit comprises a plurality of sub-pixels of different colors, and each sub-pixel comprises a peep-proof sub-pixel and a sharing sub-pixel. The light shielding layer is located on the light emitting side of the pixel layer and comprises light shielding units, the light shielding units are at least located on the two opposite sides of the peep-proof sub-pixel, and the distances between the light shielding units located between the peep-proof sub-pixel and the sharing sub-pixel and the peep-proof sub-pixel and the sharing sub-pixel are the first distance and the second distance respectively, the second distance is greater than the first distance. The pixel density can be effectively improved, and then the display effect is improved.

Example methods, systems and devices provide a display with a higher resolution than the native resolution of a light modulator used. Optical components direct first light on first light paths from a light source to a light modulator and direct second light on second light paths from the light source to the light modulator. Each of multiple controllable elements of the light modulator modulates the first light to produce first modulated light to exit the light modulator at a first angle, and modulates the second light to produce second modulated light to exit the light modulator at a second, different, angle. Another set of optical components focus the first and second modulated light on a target to display first and second sequences of image frames, respectively, in which corresponding pixels in corresponding image frames are shifted by less than a pixel pitch relative to each other.

An image sensor achieves high pixel density, and therefore high resolution, by offloading portions of a photodetector circuit to a separate device layer from the photodiodes. The photodetector uses a lateral overflow integration capacitor and a dual conversion gain transistor to increase dynamic range. The dynamic range is further increased by providing a high conversion gain mode in which the floating diffusion node is isolated from the second device layer and from the wiring that extends to the second device layer. This is accomplished by disposing the DCG transistor and the source follower in the first device layer which has the photodiodes, the transfer gates, and the floating diffusion regions. Isolating the floating diffusion node from the wiring to the second device layer in the high conversion gain mode reduces the capacitance of the floating diffusion node in the high conversion gain mode, and so increases the dynamic range.

A display substrate, a method for driving the same, a display device, and a fine metal mask are provided, and a display area of the display substrate includes a first display sub-area in which pixels are distributed at a high density, and a second display sub-area in which pixels are distributed at a low density.

Provided are a display panel and a display device. The display panel comprises a base substrate and a plurality of sub-pixels, wherein each sub-pixel comprises a light-emitting functional layer, and a first electrode and a second electrode that are located on two sides of the light-emitting functional layer in a direction perpendicular to the base substrate, and the first electrode is located between at least part of the light-emitting functional layer and the base substrate. The plurality of sub-pixels are divided into a plurality of repeating units, each repeating unit comprises a plurality of first color sub-pixels, a plurality of second color sub-pixels, and at least one third color sub-pixel, the first electrode of the at least one third color sub-pixel comprises a first electrode portion extending in a first direction and a second electrode portion extending in a second direction, the first electrode portion and the second electrode portion divide the repeating unit into two regions, and each region is provided with at least one first color sub-pixel and at least one second color sub-pixel. The display panel can achieve a larger pixel density and have a larger pixel aperture ratio, thereby having a good display effect.

The invention provides a flexible display device which comprises a driving substrate provided with a flexible stretching area and a rigid area. A main pixel, wherein the main pixel is bonded in the rigid region; the auxiliary pixel units are arranged on the main pixel, and each auxiliary pixel unit comprises a plurality of LEDs (light-emitting diodes); the first driving circuit is arranged on the driving substrate and is used for driving the main pixels to emit light; and the second driving circuit is electrically connected with the first driving circuit and is used for driving the sub-pixel units to emit light after the driving substrate is stretched. Through the overlapping and respective driving design of the main pixel unit and the auxiliary pixel unit, the main pixel is driven to emit light before stretching, and the auxiliary pixel unit is driven to emit light after stretching to a certain degree, so that the pixel density is not reduced after the display device is in a stretching state, and the display fineness is ensured not to generate pixel distortion.

Provided are a display panel and a display device. The display panel comprises a base substrate (SBT), a driving layer (DRL) and a pixel layer (PIXL) which are sequentially stacked; the display panel comprises circuit regions (PA) distributed in an array, and one pixel driving circuit for driving sub-pixels is provided in one circuit region (PA); the driving layer (DRL) is provided with data signal wires (DL), and each pixel driving circuit is provided with a data write transistor (T4) electrically connected to the corresponding data signal wire (DL); the orthographic projection of a channel region (T4A) of the data write transistor on the base substrate (SBT) at least partially overlaps the orthographic projection of the data signal wire (DL) on the base substrate (SBT). The display panel and the display device using the display panel can improve pixel density.

The application relates to an organic electroluminescence device, a display panel and a driving method, the organic electroluminescence device sets light-emitting materials in a first light-emitting layer, a second light-emitting layer and a third light-emitting layer respectively, the first light-emitting layer and the second light-emitting layer are arranged in a laminated mode in a first region of a pixel unit, the third light-emitting layer is arranged in a second region which is parallel to the first region, and a first functional layer is arranged to penetrate the second light-emitting layer; the first light-emitting layer or the second light-emitting layer can be controlled to emit light according to the size of the voltage acting on the first functional layer; since the first light-emitting layer and the second light-emitting layer are arranged in the same region of the pixel unit, the effective pixel density in a unit area can be greatly improved, and therefore the display resolution can be improved.

The invention discloses an array substrate, a preparation method thereof and a display device. The array substrate comprises a substrate body and a first conductive layer located on the substrate body, and the first conductive layer comprises at least one data line; the first insulating layer is located on one side, far away from the substrate, of the first conductive layer and comprises at least one first via hole, and the first via hole exposes a part of the data line; the first semiconductor layer is partially located on the side, away from the substrate, of the first insulating layer, the first semiconductor layer comprises a first active layer of at least one first transistor, and the first active layer of the at least one first transistor comprises a first channel region; wherein at least part of the first channel region is located in the first via hole, and the included angle between the first channel region and the direction perpendicular to the plane where the substrate is located is larger than or equal to 0 degree and smaller than or equal to 5 degrees, so that the pixel density of the display device can be improved.

The present application discloses a display panel. The display panel includes multiple actual pixel groups and multiple virtual pixel groups, each actual pixel group includes a first sub-pixel, a second sub-pixel, and a third sub-pixel; in each actual pixel group, the distance between the center point of the second sub-pixel and the center point of the third sub-pixel and the center point of the first sub-pixel in the second direction is half the side length of the actual image array in the second direction; the distance between the center point of the connecting line segment between the second sub-pixel and the third sub-pixel and the first sub-pixel in the first direction is half the side length of the actual image array in the first direction; the second sub-pixel and the third sub-pixel in the virtual pixel group and the first sub-pixel are respectively located in two actual pixel groups. The present application can achieve relatively high full-color visual resolution with a relatively low actual pixel density, thereby reducing costs, improving visual resolution, and improving luminous efficiency.

The application provides a part splicing animation display method and device and a storage medium. The method comprises the following steps: obtaining the actual physical size of a target part to be spliced; obtaining the screen pixel density and screen size of a target device; determining the target display ratio of the target part based on the screen pixel density, the screen size and the actual physical size; generating a part splicing animation of the target part according to the target display ratio; and displaying the part splicing animation on the target device. According to the application, the target display ratio of the target part is determined based on the actual physical size of the target part, the screen pixel density and the screen size of the target device, so that the display of the part splicing animation of the target part is more reasonable, and the risk of part splicing error is reduced.

The invention relates to the technical field of intelligent teaching evaluation, in particular to an education quality intelligent analysis and evaluation system which comprises an image area parameter extraction module, a drawing feature change analysis module, a main color distribution recognition module, a drawing expression repetition detection module and a theme preference affiliation evaluation module. According to the invention, on the basis of an image grid division and feature extraction mode, fine parameter acquisition of the drawing image in the spatial dimension can be realized, and in combination with feature time sequence construction, the change trend of dimensions such as the graph area, the edge line and the pixel density can be dynamically tracked; the color expression analysis depth is improved through linkage recognition of the color proportion and main color space distribution, quantitative description of painting behavior continuity and stability is achieved through repeated comparison of expression areas and feature synchronization rate evaluation, and finally the affiliation probability of an image in a subject category is output through multi-dimensional feature clustering. And data support is provided for the drawing preference and expression orientation trend of students.

The invention discloses anti-flash-point anti-dazzle glass and a preparation method thereof. The anti-flash-point anti-dazzle glass is provided with AG glass, optical cement and an LCD or OLED light-emitting module which are sequentially arranged. The AG glass comprises a substrate layer, an anti-flash-point structural layer is arranged on the side, making contact with optical cement, of the substrate layer, and an AG structural layer is arranged on the other side of the substrate layer. The AG glass applied to the LCD or OLED module with high pixel density can play an anti-dazzle role and reduce the generation of flash points on a screen, so that the discomfort caused by the flash points when human eyes watch the screen is eliminated.

A display apparatus with a novel structure or a display system with a novel structure is provided. The display system includes a first display apparatus and a second display apparatus. The first display apparatus and the second display apparatus each have a wireless communication function. The second display apparatus includes a region having higher pixel density than the first display apparatus and has a function of displaying a screen of the first display apparatus or a part of the screen of the first display apparatus on the second display apparatus using the wireless communication function. A screen ratio of the second display apparatus is preferably 1:1, 4:3, or 16:9.

The embodiment of the invention provides an array substrate, a preparation method thereof and a display panel. According to the array substrate, the first electrode layer is arranged between the source and drain electrode layer and the interlayer insulating layer, a semi-transparent mask plate can be adopted to etch the first electrode layer and the interlayer insulating layer, the process steps are reduced, the included angle between the side wall of the first via hole and the plane where the bottom face of the first via hole is located is larger than or equal to 65 degrees, and the yield of the array substrate is improved. The area of the first via hole can be reduced, and the pixel density is improved.

To provide an inspection device capable of determining whether each pixel of an inspection image is a defective pixel or a non-defective pixel without setting a model image.SOLUTION: The inspection apparatus specifies a search range away from the target pixel by an integer multiple of the pitch of the periodic pattern. When the target pixel is a non-edge pixel, the inspection device determines whether the target pixel is a defective pixel or a non-defective pixel according to a comparison result between a minimum value of a density difference between the target pixel and a pixel included in the search range and a first threshold. When the target pixel is an edge pixel, the inspection device determines whether the target pixel is a defective pixel or a non-defective pixel according to a comparison result between a minimum value of a difference in the change direction of the density gradient between the target pixel and the pixel included in the search range and a second threshold value.SELECTED DRAWING: Figure 1

The application discloses a CTC system localization hardware performance monitoring data visualization implementation method, solves the problems of poor adaptability of existing general monitoring schemes to localization hardware and railway business scenes, disconnection of data and business, weak visualization analysis and difficult special network deployment. The method ensures the improvement of data accuracy through automatic matching and multi-dimensional verification of hardware types, differentiated packet loss completion and business correlation abnormal value filtering; constructs a device-line-business three-dimensional layered model, combines railway operation diagrams for differentiated down-sampling and weighted statistics, and automatically associates business event labels to realize deep binding of performance data and business logic; through multi-index linkage visualization, pixel density detection intelligent labeling and multi-dimensional interaction filtering, the performance bottleneck positioning efficiency is improved; through three-level dependency list management, resource path mapping and static link encapsulation, an executable file that can completely run offline is generated, and the stable operation rate of the localization terminal is ensured.