245 results about "Dark spot" patented technology

The invention relates to the technical field of display screen defect detection, and discloses a mobile phone display screen defect detection method, device and equipment and a storage medium, and the method comprises the steps: collecting display images of a to-be-detected mobile phone display screen at a plurality of observation angles; the reflection intensity distribution of the display image is analyzed by using polarization optical characteristics, and a de-reflection image is generated after surface reflection components are separated; transforming the pixel brightness of each observation angle in the de-reflection image to a unified reference viewpoint to obtain a unified reference viewpoint image, and extracting a first defect feature vector of each pixel in the unified reference viewpoint image; and fusing the first defect feature vectors extracted from multiple observation angles to obtain a second defect feature vector, comparing the second defect feature vector with a preset threshold, and outputting a defect detection report. According to the application, multi-angle information advantages are utilized, and a defect classification mechanism based on RGB channel response differences is established; and various defect types of bright spots, dark spots, color cast and line defects can be accurately distinguished.

The invention relates to the technical field of image recognition, in particular to a horticultural product fungal disease image recognition system and method, and the system comprises an image collection module, an image segmentation module, an anomaly detection module, a feature extraction module, a disease recognition module and a decision output module. In the prior art, the intensity of a light supplementing lamp is manually adjusted, and instantly changing illumination conditions (such as cloud layer shielding and tree shadow shaking) are difficult to deal with in an open-air plantation, so that leaf scab details are often submerged by strong light or dim light is blurred; according to the scheme, a closed-loop linkage system of ambient light perception and an annular LED is innovatively deployed, and the light supplementing intensity is reversely adjusted in a millisecond level by tracking ambient brightness in real time, so that purple gray hyphae of downy mildew in mist in the morning and anthracnose black spots under the noon burning sun present completely consistent color saturation and texture definition in imaging; and the problem of misdiagnosis caused by illumination fluctuation in the traditional method is thoroughly solved.

The utility model discloses a display substrate, a pixel arrangement structure and a display device. The display substrate comprises a substrate body, a pixel limiting layer and a light-emitting device layer, the display substrate comprises a plurality of sub-pixels and is divided into a plurality of sub-pixel groups, and each sub-pixel group comprises a first color sub-pixel, a second color sub-pixel and a third color sub-pixel. The pixel openings of the third color sub-pixels of each sub-pixel group include M sub-pixel openings, and the pixel defining layer includes partition portions located between the M sub-pixel openings. The light-emitting function layers of the third color sub-pixels of the two adjacent sub-pixel groups in the first direction are integrated into a shared light-emitting function layer, and the shared light-emitting function layer of the two adjacent sub-pixel groups in the first direction comprises 2M sub-light-emitting parts located in the sub-pixel openings of the third color sub-pixels. The pixel openings are subjected to block design, the problem of dark spots can be solved, and the pixel aperture ratio can be increased by sharing the light-emitting functional layer.

The invention discloses a graph pattern generation method based on a Clarii graph, and relates to the technical field of information, and the method comprises the steps: constructing an extended fluorescent material calibration module, introducing a saturation critical light intensity reference value, and carrying out the calibration of the Clarii graph under the dual constraints of color temperature deviation distribution and brightness standard deviation; according to the method, the pattern contrast change condition is recognized through the adjusted pattern contrast, a correction index is formed, the LED backlight wavelength is corrected for the second time according to the correction index, pattern structure deviation information is fed back to a spectrum control link, and the color uniformity of the LED backlight is improved. According to the scheme, on the premise of ensuring uniform fluorescence response and inhibiting bright spots, dark spots and stripes, the Clariy pattern can be kept stable, clear and layered in an actual application environment.

The invention discloses a super-diffraction dark spot microscopic imaging method based on nonlinear focal spot competition. The hollow light beams with different wavelengths are subjected to incoherent overlapping in a focus area, the double hollow light beams generate excitation photon nonlinear absorption competition in a fluorophore peripheral overlapping area, super-diffraction dark spots are finally generated in a focal plane, and stable fluorescence signals are formed in a small-size signal detection area. A target signal is extracted through a weak signal locking amplification technology. The optical diffraction limit is broken through, so that high-precision positioning of the to-be-observed object in the diffraction limit area becomes possible. The optical power needed by the system is low, the detection sensitivity is high, the device structure is simple, and the system is suitable for high-resolution observation in the fields of biomedicine, nano materials and the like.

The application discloses a kind of winding lithium battery pole piece, lug and the defect detection method and system of glue, method includes: the detection image of the winding battery cell to be detected is collected, and then the detection image is adaptively threshold segmented, and the pole piece detection area and lug detection area are obtained;Size measurement and light and dark spot detection are carried out on the lug detection area, and the lug defect detection result is obtained;Color extraction is carried out on the detection image, and the glue detection area is obtained, and then the glue detection area is defect detected, and the glue defect detection result is obtained;Region extraction is carried out on the pole piece detection area, and the pole piece near area and pole piece far area are obtained, and then the pole piece near area and pole piece far area are defect detected, and the pole piece defect detection result is obtained.The different defects of the pole piece, lug and glue can be accurately detected, the overkill rate is significantly reduced while not missing detection, the loss caused by scrapped overkill battery is reduced, and the application can be widely used in battery detection technical field.

The application is suitable for the technical field of display device, and provides a display panel, a manufacturing method thereof and a display device. The manufacturing method comprises the following steps: a main material is arranged on one side of a substrate, and a first auxiliary material is added to form an isolation structure comprising a preset element, and the isolation structure surrounds an isolation opening; a light-emitting layer and an encapsulation layer are arranged on the side of the isolation structure away from the substrate; and the light-emitting layer and the encapsulation layer are etched to form a light-emitting unit and an encapsulation unit in the isolation opening, and the encapsulation unit covers at least part of the surface of the isolation structure. The manufacturing method can avoid a gap between the encapsulation unit and the isolation structure or the encapsulation unit falling off from the isolation structure, and the encapsulation effect of the isolation structure is enhanced, so that damage to the light-emitting unit under the encapsulation unit in the subsequent manufacturing process can be prevented, the light-emitting unit can maintain a complete structure and dark spots can be avoided, and the display effect of the display panel is improved.

A display panel and a display apparatus. The display panel comprises a plurality of pixel units. Each pixel unit comprises a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. The area of a light-emitting region of the second color sub-pixel and the area of a light-emitting region of the third color sub-pixel are both smaller than the area of a light-emitting region of the first color sub-pixel. Each sub-pixel comprises a first electrode, a light-emitting layer, and a second electrode. In a same pixel unit, color sub-pixels of the same type comprise one first electrode. In at least one pixel unit, the light-emitting region of the first color sub-pixel comprises a plurality of first sub-light-emitting regions arranged at intervals, and the first electrode of the first color sub-pixel comprises a plurality of first sub-electrodes arranged in one-to-one correspondence with the plurality of first sub-light-emitting regions. Configuring the first electrode of the first color sub-pixel to comprise a plurality of first sub-electrodes in a same pixel unit is beneficial for reducing the probability of dark spot defects while achieving a high pixel aperture ratio of the sub-pixel.

An α-Ga2O3 semiconductor film according to the present invention has a measurement point (dark spot) with a maximum emission intensity A of not more than 0.6 times the average value X of top 5% of the maximum emission intensities A at all measurement points in intensity mapping of plane cathodoluminescence, wherein the maximum emission intensity A at each measurement point is determined in the wavelength range of 250 to 365 nm.

The application relates to a fiber panel for cultural and creative products and a preparation method and application thereof. The fiber panel comprises a plurality of optical fibers arranged in an array, the optical fiber comprises a core and a cladding layer; the core has a refractive index of 1.66-1.68; the cladding layer is coated outside the core; the cladding layer has a refractive index of 1.50-1.52, and the expansion coefficient of the cladding layer is 2-5*10 ‑7 (1 / DEG C) lower than that of the core; the method comprises the following steps: taking a glass rod with a refractive index of 1.66-1.68 as core material, nesting a glass tube with an expansion coefficient of 2-5*10 ‑7 (1 / DEG C) lower than that of the core material and matching the diameter of the core material rod as sheath material, hot melting to obtain a preform rod; performing fiber drawing and arrangement on the preform rod to obtain a multifilament rod; and performing bundling, plate drawing, mechanical processing and optical processing on the multifilament rod to obtain the fiber panel. The technical problem to be solved is to make the fiber panel free of dark spot defects with a diameter of 150 microns or above, free of chicken wire defects with a length of more than 2 mm, shear distortion less than or equal to 100 microns, snake distortion less than or equal to 100 microns, and image displacement less than or equal to 280 microns.

This utility model relates to a locking and fixing device for optical films in an F-fold TV backlight module, comprising an elastic locking component hidden within the cavity of the F-fold back panel. The elastic locking component includes a side plate, with integrally formed spring tabs at its upper and lower ends. Each spring tab includes an elastic clamping portion and an elastic pressing portion located at the free end of the elastic clamping portion. A clamping groove is formed between the elastic clamping portions of the two spring tabs, used to elastically clamp the sides of the stacked optical film and diffuser plate. The outer surface of the side plate is bonded and fixed to the inner wall of the F-fold back panel cavity via an adhesive layer. The elastic pressing portions of the two spring tabs respectively press against the top and bottom walls of the F-fold back panel cavity. This utility model effectively prevents the optical film and diffuser plate from shaking back and forth during transportation or vibration testing, avoiding problems such as black spots caused by contact between the film and the LCD panel, vibration white spots caused by contact with the laminating auxiliary materials, and film detachment, thereby significantly reducing the product defect rate.

The present application relates to a kind of dark spot detection methods of egg based on machine learning random forest algorithm, the method includes the acquisition step of egg dark spot image sample, pre-processing step, the eigenvalue extraction step of egg dark spot image sample, the model construction of random forest algorithm, and utilize random forest algorithm to carry out automatic identification and detection step to dark spot.The detection method provided by the present application utilizes random forest algorithm and uses the dark spot characteristic image of egg itself, establishes the automatic egg dark spot evaluation system, can automatically identify dark spot area, and automatically calculates the area size of dark spot, reflects the severity of egg dark spot.Compared with other machine learning algorithms, a large number of egg samples can be efficiently regressed, classified and predicted, and the number of samples required for model construction is small, the accuracy is high, the ease of use is strong, the efficiency, accuracy and consistency of egg dark spot evaluation can be significantly improved, and has broad application prospect.

The application provides a silicon rod monitoring method and device and related equipment, wherein the method comprises: acquiring a first monitoring image of a to-be-detected silicon rod; performing image analysis on the first monitoring image to determine a number parameter of black spot regions in the first monitoring image and an area parameter of the black spot regions in the first monitoring image; and generating a warning information in a case where the number parameter is greater than or equal to a first threshold value and / or the area parameter is greater than or equal to a second threshold value. Through the acquisition of the first monitoring image of the to-be-detected silicon rod, the extraction of the number parameter and the area parameter of the black spot regions in the first monitoring image, and the generation of the warning information in a case where the number parameter and / or the area parameter indicate that the proportion of the black spots in the to-be-detected silicon rod is too large, an automatic monitoring mode is used to replace a manual inspection monitoring mode, human factors are avoided, the probability of false judgment of abnormal silicon rods or missed judgment of abnormal silicon rods is reduced, and the monitoring effect on the growth of the silicon rod is improved.

The invention discloses a method, a system and a related device for positioning a sub-pixel group of a spliced display screen, which are used for improving the accuracy of positioning the sub-pixel group of the spliced display screen. The positioning method comprises the following steps: acquiring a target image in a spliced display screen; constructing a redundancy positioning mechanism according to the sub-pixel groups, and generating dense template points according to a preset multiple; preprocessing each sub-pixel group according to a Gaussian filtering algorithm; matching the preprocessed sub-pixel groups with dense template points to generate an initial coordinate set; screening the initial coordinate set, and sorting according to column coordinates; detecting whether the distance between adjacent columns of coordinates in the sorted initial coordinate set is within a preset distance range or not; if not, the corresponding initial coordinates are removed, dark spot marks are inserted, next column coordinates are detected, and finally a coordinate matrix is generated; and obtaining a standard line in the coordinate matrix, carrying out dynamic correction on the coordinate matrix through the standard line, and obtaining positioning of the sub-pixel group of the spliced display screen according to the corrected coordinate matrix.

The invention discloses a liquid crystal display panel, a preparation method thereof and a display device. The display panel in the embodiment of the invention comprises a first substrate; the second substrate is arranged opposite to the first substrate; the liquid crystal layer is positioned between the first substrate and the second substrate; wherein in the liquid crystal layer, the liquid crystal molecules close to the first substrate have a first pretilt angle, the liquid crystal molecules close to the second substrate have a second pretilt angle, and the difference value between the second pretilt angle and the first pretilt angle is larger than or equal to 1.7 degrees. When the pretilt angle of the first substrate side and the pretilt angle of the second substrate side form a difference value larger than 1.7 degrees, the liquid crystal molecules can form a gentle and continuous inclination gradient to adapt to the displacement of the curved-surface substrate, so that the disordered arrangement and non-uniform light transmission of the molecules are avoided, and the undesirable phenomenon of dark groups is reduced or even eliminated.

The invention provides a display panel, a manufacturing method of the display panel and electronic equipment, and relates to the technical field of display. The display panel comprises a driving substrate, a light-emitting device layer and a packaging layer which are sequentially stacked. The packaging layer can comprise an inorganic protection layer, a base film layer and an optical function layer, and the inorganic protection layer, the base film layer and the optical function layer are sequentially stacked in the direction away from the driving substrate. In the structure, a multi-layer laminated structure of the inorganic protection layer, the base film layer and the optical function layer is used as the packaging layer, the inorganic protection layer is located between the light-emitting device layer and the base film layer, and water and oxygen can be effectively prevented from entering the light-emitting device layer through the inorganic protection layer, so that the problem of displaying dark spots is solved; the reliability and the service life of the product are effectively improved.

The invention relates to a display panel and a display device. The display panel comprises a substrate, an isolation structure, a light-emitting element and a packaging part. The isolation structure comprises an electric conductor and a blocking part which are stacked in the direction away from the substrate. The orthographic projection outer contour of the blocking part on the substrate is located on the outer side of the orthographic projection outer contour of the electric conductor on the substrate. The light-emitting element is arranged on one side of the substrate and corresponds to the isolation opening; the light-emitting element comprises a first electrode, a light-emitting part and a second electrode which are stacked in the direction away from the substrate. The packaging part is arranged on one side, far away from the substrate, of the light-emitting element and covers the side wall, close to the isolation opening, of the conductor; wherein the second electrode is electrically connected with the isolation structure, and at least part of the edge of the second electrode and the side wall, close to the isolation opening, of the electric conductor are arranged at intervals, so that part of the packaging part is located between the at least part of the edge and the side wall of the electric conductor. According to the invention, the dark spot phenomenon caused by peeling of the packaging part and the isolation structure can be improved, and the display effect is improved.

The present disclosure relates to a full-screen display method, comprising: when a front camera is started, a camera module sends a synchronization signal; a display module receives the synchronization signal sent by the camera module, and controls the display of a controllable area of the display screen corresponding to a front through hole of the camera module based on the synchronization signal. When the front camera is started, the full-screen display content on the display screen cannot be seen through the round hole or black spot for the camera module.

At least one embodiment of the present disclosure provides a display substrate and a display apparatus. The display substrate comprises: pixel units arranged in an array on a base substrate; and a first conductive layer, a first planarization layer and a first electrode layer that are sequentially stacked on the base substrate, wherein each pixel unit comprises a plurality of sub-pixels, and corresponding to each of at least some sub-pixels in each pixel unit, the first conductive layer comprises a first conductive portion and a spacer portion, and the first electrode layer comprises a first hollowed-out portion and a first electrode portion, the orthographic projection of the first hollowed-out portion on the base substrate at least partially overlapping the orthographic projection of the spacer portion on the base substrate. In the display substrate, the orthographic projection of a first hollowed-out portion on a base substrate at least partially overlaps the orthographic projection of a spacer portion on the base substrate, so that the venting area of vent holes can be increased, thereby reducing the probability of occurrence of dark spots caused by a short circuit between a cathode and an anode, that is, bad phenomena such as dark spots are effectively ameliorated without adding mask process steps.

The embodiment of the utility model provides a display substrate and a display device. The display substrate comprises a plurality of sub-pixels, a plurality of data lines, a plurality of data line leads and a plurality of bonding pads, wherein the sub-pixels, the data lines and the data line leads are located in a display area, and the bonding pads are located in a first frame area. The bonding pad comprises a first insulating layer, a first metal layer and a second insulating layer, the first insulating layer is provided with a first opening, the first metal layer is electrically connected with the plurality of data line leads through the first opening, the first metal layer comprises a first bottom and a step part surrounding the first bottom, the first bottom is electrically connected with the plurality of data line leads, and the step part surrounds the first bottom. The step portion includes a first step portion and a second step portion, the second step portion connecting the first bottom portion and the first step portion, and the second insulating layer includes a second opening exposing at least a portion of the first bottom portion. According to the technical scheme provided by the embodiment of the invention, dark spots formed by short circuit of the anode and the cathode in the display area can be reduced or avoided.

The application provides a sample detection method, a detection device and a charged particle optical detection system. The sample detection method comprises the following steps: acquiring a surface topography image and cathodoluminescence data of a to-be-detected sample having a dark spot defect; extracting a region in which the cathodoluminescence intensity is lower than a set intensity threshold in each cathodoluminescence image to obtain a dark spot region; and determining failure information of the to-be-detected sample based on the surface topography image, the dark spot region, the corresponding electrical stress of the dark spot region and the corresponding time of the dark spot region. Through the application, dynamic defect detection of a blue-green laser chip is realized.

This application provides an electronic device. The electronic device includes a flexible display panel, a back panel, and a hinge, with the back panel disposed between the flexible display panel and the hinge. The flexible display panel includes a connected unfolding portion and a bending portion, the bending portion being used for bending the flexible display panel. The back panel has a first blind hole, which is located on one side of the back panel and away from the flexible display panel. The hinge has a slit. Using the surface of the flexible display panel as a reference plane, the projection of the first blind hole onto the reference plane at least partially overlaps with the projection of the slit onto the reference plane. The first blind hole helps prevent display defects such as bright spots, black spots, and dead pixels from appearing on the flexible display panel, thereby improving the lifespan of the electronic device.

The application discloses a silicon-based OLED dark spot repairing process, which comprises the following steps: S1, after wafer evaporation of an organic layer, a cathode IZO film layer is formed by sputtering; S2, an Al layer is formed on the cathode IZO film layer by sputtering, and the high drilling property of Al is utilized, so that Al drills into the space between the IZO cathode and the microparticle; S3, by applying a reverse voltage, the circuit between the microparticle and the IZO cathode is disconnected, short circuit is avoided, and dark spot repairing is completed. Anode and cathode lead pads are designed, so that in the process of voltage breakdown, only two input pads need to be applied with voltage, voltage breakdown processes of hundreds of dies in the wafer are simultaneously completed, the repairing is efficient, and the relative cost is relatively low.

Embodiments of the present invention disclose an array substrate, a method for manufacturing the same, a display panel, and a display device. The array substrate manufacturing method includes: providing a substrate; forming a first electrode on one side of the substrate; forming an insulating layer on a side of the first electrode facing away from the substrate, the insulating layer comprising at least two sub-insulating layers, with particles from any two adjacent sub-insulating layers prepared in different environments; and forming a second electrode on a side of the insulating layer facing away from the substrate, the first electrode and the second electrode being electrically connected to different signal transmission terminals, respectively. The array substrate manufacturing method provided by the embodiments of the present invention can reduce the probability of cracking the insulating layer, reduce the probability of dark spots forming on the screen, and improve the display quality and reliability of the display panel.

The present application discloses a dark spot repair method, a display panel, and a display device. The display panel comprises: a substrate; and a light-emitting layer provided on one side of the substrate and comprising light-emitting pixels, each light-emitting pixel comprising a first electrode, a light-emitting material layer, and a second electrode sequentially arranged in a direction moving away from the substrate, wherein the surface of the second electrode facing away from the first electrode is provided with a laser trace, the laser trace comprises a plurality of laser sub-traces nested from inside to outside, and the depth of each laser sub-trace is less than the thickness of the second electrode. The dark spot repair method provided in the present application can improve the effect of dark spot repair, and by using the display panel provided in the present application, the product quality can be ensured.

The application discloses a display panel, a display device and a manufacturing method of the display panel, and aims at improving the problem that the pixel area of the prior art display panel is prone to dark spot defects. The display panel comprises a plurality of pixel areas on one side of a substrate and a blocking area on one side of at least part of the pixel areas; the pixel areas and the blocking area have an auxiliary electrode, a first electrode structure, a light-emitting layer and a second electrode structure on the one side of the substrate in sequence; the first electrode structure blocks the light-emitting layer in the blocking area, so that the second electrode structure is overlapped with the auxiliary electrode at the disconnection position of the light-emitting layer; and the thickness of the first electrode structure of the blocking area is greater than the thickness of the first electrode structure of the pixel area.

The embodiment of the invention provides a display panel, a preparation method of the display panel and electronic equipment, and relates to the technical field of display, the display panel comprises a substrate, an isolation structure, a plurality of light-emitting units and a plurality of packaging units, the isolation structure defines a plurality of isolation openings, and at least parts of the light-emitting units are located in the isolation openings; the packaging units are located on the sides, away from the substrate, of the corresponding light-emitting units, each packaging unit comprises an edge covering part located on the side, away from the substrate, of the corresponding isolation structure, at least part of each edge covering part makes contact with the side, away from the substrate, of the corresponding isolation structure, and each packaging unit extends from the side, facing the corresponding isolation opening, of the corresponding isolation structure to the side, away from the substrate, of the corresponding isolation structure. The packaging unit located on the side, away from the substrate, of the isolation structure is an edge covering part, and the side, away from the isolation opening, of the edge covering part makes contact with the side, away from the substrate, of the isolation structure. According to the invention, the etching liquid is not liable to invade the light-emitting units, so that the corresponding light-emitting units are not liable to generate dark spots.

The present application relates to the technical field of multi-stage cleaning of IGBT heat dissipation substrates, and solves the technical problem of black spot defects after chemical nickel plating caused by insufficient cleaning of oil stains in the pin fin microstructure of the heat dissipation substrate, especially a multi-stage cleaning method for inhibiting black spot defects of IGBT heat dissipation substrates. In the rough cleaning stage, the key parameters of the ultrasonic generator and the transducer are optimized, the heat dissipation substrate is subjected to rough cleaning, and the surface cleanliness is detected in real time. In the fine cleaning stage, the posture of the hyperspectral camera is accurately controlled for omnidirectional detection of the pin fin, the nozzle posture is adjusted based on the key information of the oil-stained pin fin, the nozzle output flow and pressure are controlled as the optimization target of the micro-flow column jet impact force, and the oil-stained pin fin is subjected to accurate cleaning. The present application realizes multi-angle omnidirectional oil stain cleaning and real-time cleanliness detection of each area on the surface of the heat dissipation substrate, thereby improving product quality to meet the requirements of downstream customers and effectively improving the core competitiveness in the industry.

The embodiment of the present application discloses a display panel and a method for manufacturing the same, comprising the following steps: acquiring a real-time image within the opening area, identifying an abnormal protrusion and acquiring position information of the abnormal protrusion based on a comparison between the real-time image and a standard image; flipping the drive substrate so that the opening faces downward; removing the abnormal protrusion based on the position information, so that the anode forms a hole corresponding to the area of ​​the abnormal protrusion; flipping the drive substrate again so that the opening faces upward; and filling the hole with a repair material. The display panel and method for manufacturing the same in the embodiment of the present application remove the abnormal protrusion after flipping the drive substrate, thereby reducing the risk of the removed abnormal protrusion adhering to the drive substrate, and at the same time, improving dark spot defects by excessively removing the abnormal protrusion; then filling the hole with a repair material to improve the surface flatness of the anode.