115 results about "Dark line" patented technology

The invention discloses a liquid crystal display screen bright and dark line adjustment optimization method and system and a display screen, and relates to the technical field of liquid crystal display screens, and the method comprises the following steps: constructing a femtosecond resolution synchronous sampling matrix, employing a photoelectric hybrid probe to carry out in-phase collection on driving voltage rising edges of a plurality of sub-channels of the liquid crystal display screen, generating an original waveform database of the multi-channel driving voltage; based on an original waveform database, quantum dot calibration pulses with time marks are injected into all the sub-channels, phase deviation sequences among all the sub-channels are analyzed and extracted through timestamp linkage, and a cross-channel synchronization deviation reference baseline is established. By means of high-precision sampling and difference frequency regulation and control, approximate synchronization of multi-channel driving voltage of the liquid crystal display screen is achieved, accurate recognition is achieved, phase deviation is dynamically corrected, abnormal display phenomena such as frame skipping, ghost shadows and color cast are remarkably eliminated, and visual consistency and display stability in a high-dynamic scene are improved.

The invention relates to the technical field of image data processing, in particular to an image line extraction method based on a GPU. The method comprises the following steps: calculating convolution of a first-order partial derivative and a second-order partial derivative of a two-dimensional Gaussian function and an image; calculating a line normal direction according to a Hessian matrix of the two-dimensional discrete image, and performing Taylor expansion on the gray level distribution function along the normal direction to obtain a line center point sub-pixel position; and connecting the contour points according to the distance between the adjacent contour points, the normal direction and other information and a connection rule, and extracting lines in the image. The invention provides an image line extraction method based on a GPU (Graphics Processing Unit), which can accurately and efficiently extract bright and dark lines in an image.

The invention relates to a display panel and a repairing method of the display panel, and relates to the technical field of display screens. According to the invention, when the gate lines are scanned one by one, the current values of the plurality of data lines simultaneously driven by the data driving circuit based on the preset data signals are obtained, whether a fault occurs is determined through the current values, and the faulted gate lines and / or circuits related to the gate lines are further locked. Therefore, the fault gate line and / or the circuit related to the gate line can be automatically detected, whether the fault occurs or not is determined through the current value, the troubleshooting efficiency can be improved, a basis is provided for the process of repairing a weak line or a dark line, and the repairing efficiency is improved.

The invention relates to the technical field of flexible LED screens, in particular to a full-angle flexible splicing type LED screen which comprises a frame, circuit elements and display units, the curvature of the frame is variable, the multiple display units are arranged on the frame in a rectangular array mode, and the circuit elements are installed in the frame and electrically connected with the display units. By arranging the compensation assembly, when the display unit generates a dark line on the gap due to curvature change, the positioning magnet generates an inclination angle relative to the edge side surface of the display unit according to the deformation quantity of the display unit, so that the magnetic induction line between the positioning magnet and the compensation unit is changed, and the compensation light source is driven to rotate; the reflecting plate is arranged in the gap, so that scattered light of the compensation light source is converted into directional light reflected towards the outside of the gap through the reflecting plate, dark lines are prevented from being generated in the gap, it is guaranteed that when the display unit is in various curvatures, the dark lines generated by a screen can be automatically compensated according to the deformation quantity of the display unit, and the display effect of the screen is guaranteed.

The invention provides a laser chip temperature real-time measurement and defect detection system, which comprises an infrared thermal imager, a photoelectric detector, a temperature control platform and a main control computer, the temperature control platform provides a stable chip operation environment, the photoelectric detector detects the occurrence of early COD through the change of the reflectivity of a cavity surface, and the main control computer detects the defect of the chip. The thermal infrared imager captures thermal radiation signals on the surface of the chip in real time so as to monitor temperature distribution changes, judge the occurrence of dark line defects and position the dark line defects, the thermal infrared imager and the photoelectric detector are respectively connected with the main control computer, and signals and data are transmitted to the main control computer. And carrying out data processing and visualization by virtue of analysis software, and finally realizing accurate monitoring of the whole process of chip defects from early formation to evolution expansion.

The invention discloses a display screen bright and dark line adjustment optimization method and system and an LED display screen, and belongs to the technical field of display, and the method comprises the steps: obtaining brightness response data of a target display screen under multi-gray-scale input, and constructing a bright and dark line initial response distribution diagram; identifying a target gray stage based on brightness fluctuation characteristics, and extracting brightness deviation slope characteristics to construct a characteristic set; constructing a bright and dark line local response model based on the feature set; generating a driving adjustment vector in combination with the model, the brightness expected value and the current adjustment range; after the adjustment vector is applied to the display screen, brightness response is collected again, and an adjusted response matrix is constructed; comparing the brightness difference before and after adjustment, and if the preset tolerance is not reached, updating the model and repeatedly adjusting until the brightness consistency requirement is met; and finally outputting an adjustment scheme for batch optimization. According to the method, high-precision identification and iterative adjustment of bright and dark line defects are realized, the display uniformity is improved, and the method has good industrial application value.

This invention provides a directly coupled stacked structure for improved image quality in optical devices. [Solution] Optical surfaces are planarized and plasma activated to laminate them together, and then a direct bond is formed between the two surfaces without adhesive or an adhesive layer. This process provides an improved optical element with higher image brightness, lower light scattering, better resolution, and higher image fidelity. Direct bonding also provides a heat-resistant interface that can withstand much higher temperatures than conventional optical adhesives. Exemplary processes can be used to manufacture many types of improved optical components such as improved laminated lenses, mirrors, beam splitters, collimators, prism systems, optical conduits, and specular waveguides for smart glasses and head-up displays (HUDs), which provide better image quality and elimination of dark lines of sight that are apparent to the human observer when conventional adhesives are used in conventional lamination.

This application relates to a display panel and its driving method. The method includes: charging each sub-pixel on the display panel, and sampling a first sub-pixel and a second sub-pixel on a preset detection row after charging to obtain a feedback signal. The first sub-pixel and the second sub-pixel input the same data signal. The feedback signal includes a first voltage signal and a second voltage signal. The first sub-pixel and the second sub-pixel have a preset positional relationship on the display panel, and the preset detection row does not participate in the display. The method also includes: determining a voltage difference value between the first sub-pixel and the second sub-pixel in the current frame based on the first voltage signal and the second voltage signal; determining a display compensation value corresponding to the voltage difference value based on a preset matching strategy; and using the display compensation value to compensate the data output of a target sub-pixel in the next frame, wherein the target sub-pixel is determined by the preset matching strategy. This application solves the problem of difficulty in achieving accurate compensation for bright and dark lines in existing display panels.

This invention discloses an array substrate and a display panel. The array substrate includes: a first signal line and a second signal line on the same layer; along a direction perpendicular to the plane of the substrate, the active layer of at least one first sub-pixel does not overlap with the second signal line, and the active layer of at least one second sub-pixel does not overlap with the second signal line; within a preset voltage range, the data writing voltage of at least one first sub-pixel is equal to the data writing voltage of at least one second sub-pixel, avoiding charging differences between the first and second sub-pixels, which would cause differences in display brightness between the first and second sub-pixels, thus improving the problem of poor dark lines and enhancing the display effect.

The invention discloses a method and equipment for monitoring lower limb vein deformation and blood flow based on an M-type ultrasonic technology, and the method comprises the steps: carrying out the M-type ultrasonic scanning of the lower limb skin of a user in a motion state in a preset sampling line direction through a flexible patch type ultrasonic probe; based on a preset grayscale signal gradient condition and a region-of-interest extraction condition, converting the scanned M-type ultrasonic image into a grayscale image, extracting a region-of-interest from the grayscale image, marking a low-pixel line segment representing a blood vessel envelope region in the region-of-interest as a'dark line ', d-type ultrasonic waves of a flexible patch type ultrasonic probe are used for measuring an optimal sampling line of a dark line, integration is carried out on deformation of the dark line along with time, the part between two adjacent waveforms in an obtained broken line graph is marked as a dark area, integration is carried out on changes of the edge and the internal pixel value of the dark area along with time, and the optimal sampling line of the dark line is obtained. And outputting a motion waveform image of the depth positions of the vein tube wall and the vein valve along with the time change, and calculating the vein deformation quantity of the lower limb muscles.

This application belongs to the field of display driving technology, and specifically relates to a display driving method, a display panel, and a display device. The display driving method includes: obtaining the actual display data of the current frame of the picture; generating first-row precharge data according to the first-row data in the actual display data; splicing the first-row precharge data and the actual display data to obtain target display data, and performing display driving according to the target display data. This application precharges the first-row pixels according to the first-row precharge data in advance, so that the first-row pixels of the display panel can obtain sufficient charging voltage when the actual first-row data arrives, thereby solving the problem of dark lines at the top of the display panel and improving the display effect.

A colored resin composition includes a colorant, an alkali-soluble resin, a polymerizable unsaturated compound, a photoinitiator, and a solvent, wherein the alkali-soluble resin contains a photocurable resin, and the weight average molecular weight (Mw) of this photocurable resin is less than 20,000, and the potassium hydroxide (KOH) titration acid value is less than 100 mg / g. The display device using the colored resin composition disclosed herein can avoid the exposure defects generated by the pixels of the display device due to partial peeling of the photoresist, and can also greatly improve the problem that the uneven bright and dark lines generated by the defective photoresist lead to an overestimation of the number of photoresist defects by the inspection machine.

The embodiments of the present application relate to the technical field of electronics. Provided are a driving circuit and a driving method therefor, and a display panel, a display module and an electronic device. The driving circuit comprises first shift registers and third shift registers, which are under partition control, and a second shift register, which is added at a partition position. A signal outputted by the second shift register only serves as a starting signal of a first-stage third shift register, and is not outputted as a scan signal. Even if the signal outputted by the second shift register is different from a signal outputted by a last-stage first shift register, the display is not affected. After a second gate starting signal is shaped and shifted by the second shift register and the first-stage third shift register, a signal outputted by the first-stage third shift register is restored to normal. In this way, when an electronic device having a partition display function performs full-screen display, the brightness difference between display rows at a partition position is significantly reduced, thereby ameliorating the problem of bright lines or dark lines appearing in a display picture.

The application discloses a display device and a display method thereof. The display device comprises sub-pixels of multiple color types, and the light-emitting colors of the sub-pixels of different color types are different. The display method comprises the following steps: acquiring the segment number of a first type display gray scale, the continuous column number of each segment and the column position of each segment in a pixel row to be compensated; acquiring the continuous row number of the pixel row displaying the first type display gray scale according to the segment number, the continuous column number of each segment and the column position of each segment; determining the gray scale compensation value of the sub-pixel of a second type display gray scale in the pixel row to be compensated according to the segment number, the continuous row number, the total column number of the first type display gray scale in the pixel row to be compensated and the row position of the pixel row to be compensated; and compensating the gray scale of the sub-pixel by using the gray scale compensation value corresponding to the sub-pixel; wherein the gray scale difference between the first type display gray scale and the second type display gray scale is greater than a first preset value. The application can improve the problem of unexpected bright lines and dark lines in the display device during display.

The application belongs to the technical field of LED display screens, and provides an LED display module inter bright-dark line correction method and an LED display screen. The LED display module inter bright-dark line correction method comprises the following steps: preparing a first LED display module, determining a first distance L1 between a first side of the first LED display module and the center of an adjacent first LED lamp bead and a second distance L2 between the centers of two adjacent rows of first LED lamp beads, and determining a first width value W1 of a first joint gap formed when two first LED display modules are spliced in a first direction; a second LED display module is prepared by the same process, the position of a second solder pad on the second LED display module is corrected according to the above parameters, and the finally prepared second LED display module is not prone to bright-dark lines at the joint gap.

The invention belongs to the technical field of electric power distribution line inspection, and provides an insulator crack-light spot distinguishing method and system.In high-altitude unmanned aerial vehicle inspection, through closed track planning and three-gear exposure synchronous shooting in cooperation with a double-branch detection network, chain type geometric topology constraint and one-dimensional multi-flow graph convolution, the insulator crack-light spot distinguishing method and system are obtained; the method comprises the following steps: firstly, accessing a double-branch detection network by using highlight / dark fringe double-branch lightweight convolution to realize candidate crack detection; according to geometric matching, a candidate frame is aligned with a disc edge, three-exposure local parts are cut, and multi-dimensional features are extracted; after a highlight channel is attenuated by using a saturation mark, assembling features into a chain graph according to a physical sequence, and capturing cross-disk coherent dark fringes; and finally, the full connection layer outputs the crack probability, mirror reflection suppression and real crack suppression are realized, false alarm and missing alarm are effectively reduced, and an accurate basis is provided for a power failure maintenance decision.

The invention provides a display device which comprises a display panel and a cover plate which are arranged in a stacked mode, the display panel comprises a first plane area, a second plane area and a bending area connected with the first plane area and the second plane area, and the first plane area is arranged close to the cover plate; the protection structure comprises a reserved area and a protection area, the reserved area is fixed to the side, away from the cover plate, of the second plane area, and the orthographic projection of the reserved area on the cover plate is located in the cover plate; one end of the protection area is connected with the reserved area, the other end of the protection area abuts against the cover plate, and the protection area wraps the bending area. The display device is simple in structure and convenient to manufacture, the bending area can be effectively protected, poor bright and dark lines are avoided, and the display effect is ensured.

The application discloses a display panel, a compensation method and equipment, and relates to the technical field of liquid crystal display, and comprises a liquid crystal panel, a time sequence controller, a compensation module, and the time sequence controller is configured to generate a data signal; the compensation module is connected with the time sequence controller and the liquid crystal panel respectively, and the compensation module is configured to compensate a first type of row signal of the data signal to obtain a compensation signal; wherein the compensation signal is configured to compensate the display quality of the liquid crystal panel. The display panel provided by the application compensates the first type of row signal through the compensation module, thereby compensating the display quality of the liquid crystal panel, and then improving the light and dark line problem of the display panel and improving the display effect of the display panel.

The invention belongs to the field of display, and particularly relates to a driving module and a display device.The driving module comprises a plurality of source electrode driving chips, a time schedule controller and at least one driving module, and the driving module comprises a polarity partition control unit, a picture detection unit, a refresh rate detection unit and a reversal interval control unit; the refresh rate detection unit is used for detecting the refresh rate of the display partition, the reversal interval control unit is connected with the time schedule controller, the picture detection unit and the refresh rate detection unit, and when the refresh rate of the display partition is high, the reversal interval control unit reduces the frequency of the first polarity reversal control signal, the power consumption of the driving module is reduced while the bright and dark lines are improved or eliminated, the frequency of the first polarity inversion control signal is increased by the inversion interval control unit when the refresh rate of the display partition is relatively low, the risk of polarization of liquid crystal molecules is reduced while the bright and dark lines are improved or eliminated, and the display effect of the display panel is improved.

The invention relates to the technical field of anti-counterfeiting, and discloses an anti-counterfeiting rubber cap based on a micro-nano optical structure and a preparation method thereof.The anti-counterfeiting rubber cap comprises an anti-counterfeiting rubber cap body, a plurality of bright lines are arranged on the outer side of the anti-counterfeiting rubber cap body, dark lines are arranged on the anti-counterfeiting rubber cap body located between every two adjacent bright lines, and a code spraying area is further arranged on the outer side of the anti-counterfeiting rubber cap body; a plurality of separation lines are arranged at the top of the anti-fake rubber cap, an anti-fake chip is fixedly connected to the center of the top of the anti-fake rubber cap, and a plurality of verification points are arranged at the positions, close to the separation lines, of the top of the anti-fake rubber cap. Multiple anti-counterfeiting structures such as bright fringes, dark fringes, a code spraying area and an anti-counterfeiting chip are integrated, a multi-dimensional anti-counterfeiting system is formed, the imitation difficulty is greatly improved, a multi-layer interference optical variable structure of the bright fringes presents specific color value changes along with the visual angle, and the identification degree is high; due to the design of the micro-nano grating with dark fringes, exclusive patterns with high diffraction efficiency can be generated through laser irradiation, and the anti-counterfeiting reliability is enhanced.

The application provides a display panel and a display device. The display panel comprises a display area and a non-display area. The display area comprises a first display area and a second display area. The light transmittance of the second display area is different from that of the first display area. The display area and the non-display area have a first boundary. The first display area and the second display area each comprise a plurality of sub-pixels with different colors. In the second display area, at least a plurality of sub-pixels with the same color are sequentially and synchronously driven by the same pixel driving circuit to form a sub-pixel group. In a sub-pixel group adjacent to the first boundary, the light emitting area of a sub-pixel adjacent to the first boundary is different from that of a sub-pixel not adjacent to the first boundary, or the pixel opening size of the sub-pixel adjacent to the first boundary is different from that of the sub-pixel not adjacent to the first boundary. The application can eliminate the dark lines of the second display area and improve the display effect of the second display area.

The application relates to a breakpoint repair circuit, method, device, equipment and medium of a display panel, wherein the method comprises the following steps: accessing a repair line when detecting that a breakpoint of the display panel occurs; adjusting the signal gain of the signal entering the repair line through a gain circuit, wherein the gain circuit is arranged on a circuit board outside the display panel; accessing a high-pass filtering link in the repair line, and compensating the signal attenuation on the repair line through the high-pass filtering link. By introducing the gain circuit to adjust the signal gain on the repair line, and compensating the signal attenuation on the repair line through the high-pass filtering link, the phenomenon of uneven brightness of the repaired section that may occur is inhibited, and the problem that the overall dark line of the repaired section still occurs after the breakpoint repair through the repair line is solved.

The present invention provides a display substrate and a display device, relating to the technical field of displays. To solve the problem that the transient large current entering the fan-out line from the driving chip is likely to damage the via hole between the fan-out line and the signal line, resulting in the vertical dark line defect in the display panel. The display substrate includes: a display area and a peripheral area surrounding the display area, and the peripheral area includes a fan-out area; the display substrate further includes: a plurality of first signal lines, a plurality of fan-out lines, and a plurality of first electrostatic protection circuits, the first signal lines extend from the display area to the peripheral area; the fan-out lines are located in the fan-out area; the fan-out lines are coupled to the corresponding first signal lines; the plurality of fan-out lines include a plurality of target fan-out lines, and the target fan-out lines are arranged in a different layer from the first signal lines to which they are coupled; the first electrostatic protection circuits are located in the fan-out area, and the first electrostatic protection circuits are coupled to the corresponding fan-out lines for releasing the static electricity on the fan-out lines. The display substrate provided by the present invention is used to form a display device.

The embodiment of the invention provides a display panel and a splicing display device, relates to the technical field of display, and is used for weakening dark fringes at splicing seams and improving the display effect. The display panel comprises a substrate, a first electrode layer, a pixel defining layer, a light-emitting function layer, a second electrode layer, a first packaging layer and a second packaging layer. The first electrode layer includes a first electrode. The pixel defining layer is provided with a pixel opening. The light-emitting functional layer comprises a light-emitting part, and the light-emitting part is at least partially located in the pixel opening and makes contact with the first electrode. And a light-emitting device is formed at the overlapped part of orthographic projections of the second electrode layer, the light-emitting part and the first electrode on the substrate. The first packaging layer defines a plurality of packaging areas, the light-emitting parts are located in the packaging areas, and the light-emitting parts corresponding to the light-emitting devices in at most one pixel are arranged in the same packaging area. The second packaging layer is arranged on the side, away from the substrate, of the second electrode layer. The second packaging layer covers the packaging area. The display panel is used for displaying images.

The invention provides a panel defect detection method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a panel image of a display panel, and obtaining a first panel image according to a bright spot of the display panel in the panel image; obtaining a second panel image according to a pixel difference value between a target pixel and a reference pixel in the first panel image; and obtaining a panel dark line of the display panel and a defect detection result of the panel dark line according to the first panel image and the second panel image. According to the invention, the panel defect identification precision can be improved.

According to the flexible resin plate provided by the invention, by reducing pigments or dyes in the photosensitive resin layer, adding pigments or dyes in the bonding layer and controlling color distribution in the plate material, a flexible printing plate with feature recognition colors can be easily obtained, meanwhile, the reduction condition of fine lattice points on the plate material is improved, the dark line depth is increased, and the printing quality is improved. The flexographic plate material with higher precision can be obtained, and in addition, the flexographic plate material has better binding power.

The application relates to a display panel and a repairing method thereof, and relates to the technical field of display screens. When scanning the gate lines one by one, the application can acquire the current value of the data driving circuit based on the preset data signal for simultaneously driving multiple data lines, and determine whether a fault occurs through the current value, further lock the gate line and / or the circuit related to the gate line where the fault occurs, and then automatically detect the gate line and / or the circuit related to the gate line where the fault occurs, and determine whether a fault occurs through the current value, so that the fault troubleshooting efficiency can be improved, and the repairing efficiency of the weak line or the dark line can be improved.

The application provides a display panel and a display device. The orthographic projection of a light-emitting control signal wire located in a transition area on a substrate is not overlapped with the orthographic projection of a data wire on the substrate, abnormality in the charging process of pixels in the same column and located in other rows is avoided, the display of the pixels in other rows is avoided from being affected, dark lines in the display panel are avoided, the display yield of the display panel is ensured, and the display effect of the display panel is improved.

The application discloses a track surface defect detection system based on computer vision and relates to the technical field of defect detection. Continuous images of a track surface after rain are collected, and adjacent frame brightness fluctuation change tracks are recorded synchronously. In a time advancing process, dark line appearance frequency and moving direction information are extracted to generate dynamic dark line initial identification. For the region corresponding to the dynamic dark line initial identification, the brightness change rhythm in the continuous images is compared frame by frame, and the region with periodic fluctuation characteristics is marked as a flow interference region. The application analyzes the continuous images of the track surface through the time dimension, extracts dynamic dark line characteristics and forms a hierarchical recognition path, realizes effective separation of water film disturbance and crack characteristics, improves defect detection stability, simultaneously strengthens stable texture through reverse convergence and edge information superposition, restores real crack characteristics, improves recognition accuracy and reduces the risk of missed detection.