143 results about "Dark spot" patented technology

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.

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.

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 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 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.

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 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.

This invention relates to the field of radiator technology and discloses a rapid detection device for brazing defects in radiators. The device includes: a positioning fixture, a machine structure, a vision camera, a detection and adjustment mechanism, and a marking mechanism. It uses a high-speed, high-precision vision camera, employing an upper light source to illuminate and inspect for light leaks, and a side light source to illuminate from the side to identify black spots at the weld joint. A closed-loop process is employed, featuring two symmetrical, two-degree-of-freedom adjustments, division of labor between the upper and side light sources, light shielding and anti-interference, and orthogonal marking by a dual-marking mechanism with defect coordinate mapping, to rapidly detect brazing defects. Marking is performed on the non-welding area of ​​the radiator to be inspected to identify the defect location, facilitating repair welding of products with appearance defects. The device improves detection accuracy, stability, and precision, reduces inspection costs, and decreases the number of appearance defects.

The application relates to an auxiliary positioning jig for mounting a support frame on a back plate, which comprises a jig frame for being arranged on the back plate, a positioning carrier arranged on the jig frame, the positioning carrier being provided with a feeding port, a containing cavity and a discharging port which are sequentially communicated, the support frame being movably arranged in the containing cavity, and an actuating assembly for being communicated with the feeding port and capable of increasing the pressure in the containing cavity so that the support frame is discharged from the discharging port and connected with the back plate. The auxiliary positioning jig of the scheme does not have installation gaps, and the installation process does not need manual intervention of an operator, the support frame can be discharged from the containing cavity under the action of pressure to achieve the purpose of being connected with the back plate, the installation position precision of the support frame can be well ensured, position deviation can be avoided to cause a reflective sheet to be punctured to cause a dark spot on a picture, display effect and quality are ensured, and an operator's hands are not scratched, and potential safety hazards are fundamentally eliminated.

The invention provides a display substrate and a display device, belongs to the technical field of display, and can solve the problem that an existing display substrate is prone to black spots and the like. The display substrate is provided with a hole opening area, a display area surrounding the hole opening area and a blocking area arranged between the hole opening area and the display area. The display substrate comprises a substrate body and an inorganic insulating layer located on the substrate body. The inorganic insulating layer is provided with a groove in the barrier region; the display substrate further comprises a first metal layer; the first metal layer covers the side face of the groove and is in lap joint with at least part of the bottom face of the groove and part of the surface, away from the substrate, of the inorganic insulating layer.

The invention discloses a display panel, a display device and a preparation method of the display panel. The display panel comprises a substrate, an isolation structure, a light-emitting layer and a first electrode layer. When the light-emitting layer is prepared, the light-emitting layer generates a large fall on the edge of the isolation structure and is difficult to connect, so that the light-emitting layer is broken, the light-emitting layer is broken to form the light-emitting units which are mutually disconnected and located in the isolation opening, a precise mask plate does not need to be adopted, development and use of the precise mask plate can be reduced, and the preparation cost is reduced. The first area is larger than or equal to the second area, that is, the first electrode has a larger lap joint area between the first end and the isolation structure, so that the lap joint effect of the first electrode on one side of the first end and the first electrode is improved, and the lap joint impedance and the power consumption of the display panel are reduced; the dark spot problem caused by poor lap joint of the first electrode and the isolation structure is solved, and the display effect and the use performance of the display panel are improved.

The application provides a display panel and a display device, wherein the display panel is provided with a first sublayer and a second sublayer, wherein the first sublayer comprises a first opening, a second opening and a third opening, wherein the second sublayer is arranged in the second opening and is in contact with the side wall of the second opening, wherein a fourth opening is provided in the second sublayer within the second opening, wherein the second light-emitting material section is arranged in the fourth opening and is in contact with the side wall of the fourth opening, wherein the first light-emitting material section is arranged in the first opening and is in contact with the side wall of the first opening, and wherein the third light-emitting material section is arranged in the third opening and is in contact with the side wall of the third opening.This prevents dark spots from forming in the second light-emitting material section, and since the human eye is insensitive to light of the color emitted by the second light-emitting material section, the impairment of the display effect caused by the reflected light is reduced, while in the areas corresponding to the first and third light-emitting material sections, reflection is further reduced, thereby simultaneously achieving an effect of removing dark spots and reducing the reflection rate.

The invention discloses a display panel and a manufacturing method thereof, belongs to the technical field of display, and aims to at least solve the technical problem that black spots are easy to appear on a display panel in related technologies. The display panel comprises a substrate, at least one base and a plurality of partition structures, wherein the base and the partition structures are located on the substrate, and the base and the partition structures are located in a transition area of the display panel. The plurality of partition structures comprise at least one first partition structure, the first partition structure is supported on the corresponding base, and the orthographic projection of the base on the substrate is located in the range of the orthographic projection of the first partition structure on the substrate.

The invention provides a display panel, a preparation method thereof and a display device, the display panel comprises a substrate and an isolation structure, the isolation structure is arranged on one side of the substrate, the isolation structure comprises a first supporting part and a second supporting part, and the second supporting part is located on the side, away from the substrate, of the first supporting part. According to the display panel, the end, close to the substrate, of the first supporting part is provided with the first surface, the end, close to the second supporting part, of the first supporting part is provided with the second surface, the first surface and / or the second surface are / is provided with the concave-convex structure, and interface separation between the side wall of the isolation structure and the second electrode due to thermal expansion of the isolation structure is avoided; the stability of lap joint between the side wall of the isolation structure and the second electrode is guaranteed, lap joint failure between the second electrode and the isolation structure is avoided, pixel dark spots are avoided, and the display performance of the display panel is improved.

The utility model provides a device for detecting dark spot eggs in eggs, and belongs to the technical field of dark spot egg detection. Comprising a first circular ring and a second circular ring, the central axis of the first circular ring and the central axis of the second circular ring coincide, the diameter of the first circular ring is larger than that of the second circular ring, and the first circular ring and the second circular ring are used for dividing an egg into three parts, namely a tip end, a blunt end and an equatorial part, so that dark spot detection and evaluation rating are conducted on the tip end area, the blunt end area and the equatorial part area respectively. According to the utility model, through the first circular ring and the second circular ring, the egg is divided into three areas of the tip, the blunt end and the equatorial part, evaluation standards of dark spots of the tip, the blunt end and the equatorial part are formulated, and scoring is carried out according to the evaluation standards, so that accurate and comprehensive detection of dark spot conditions of different parts of the egg is realized, and the dark spots of each area are scored by using the evaluation standards. And the original subjective and fuzzy dark spot detection is converted into an objective and quantitative result.

The display panel, the preparation method of the display panel and the electronic equipment provided by the embodiments of the present application relate to the technical field of display, and the display panel comprises a substrate, an isolation structure and a light-emitting unit. The isolation structure is located on one side of the substrate, and the isolation structure encloses to form a plurality of isolated openings. At least part of the light-emitting unit is located in the isolated opening. The light-emitting unit comprises a first electrode. In the thickness direction of the substrate, the first electrode comprises a first electrode part and a second electrode part which are arranged in layers. The orthographic projection of the second electrode part on the substrate covers the orthographic projection of the first electrode part on the substrate, and the edge of the second electrode part is attached to the substrate. The present application can prevent the second electrode part from warping away from the substrate, so as to prevent the corresponding light-emitting unit from generating dark spots, thereby improving the display effect of the display panel.

A display panel is provided to improve the situation where moisture intrusion into the display area causes generative black spots. The display panel includes: a substrate, a plurality of sub-pixels, power lines, and an organic insulating layer. The substrate includes a display area and a first border area located on one side of the display area along a first direction. The first border area includes a bending area and a first wiring area located on the side of the bending area closer to the display area. The plurality of sub-pixels are located in the display area. The power lines are at least partially located in the first wiring area and are electrically connected to the plurality of sub-pixels. The organic insulating layer may be located on the side of the power lines away from the substrate, and an organic groove extending along a second direction is provided in the first wiring area, the organic groove penetrating the organic insulating layer. The power lines have at least one sidewall extending along the first direction, the edge length of the area where the at least one sidewall coincides with the orthographic projection of the organic groove onto the substrate is greater than the minimum length of the organic groove along the first direction.

The invention provides a folding screen and foldable electronic equipment, and relates to the technical field of electronic products. The folding screen comprises a screen body, a supporting piece is arranged on the back face of the screen body, and the supporting piece covers a bendable part of the screen body. The reinforcing piece is additionally arranged on the surface of the side, away from the screen body, of the supporting piece, or the structure of the supporting piece is improved, so that the structural strength of the foldable portion of the folding screen is enhanced. The supporting piece and the reinforcing piece are fixedly connected to the screen body, and the folding screen is of an integral structure. Therefore, the impact resistance of the folding screen can be improved, the failure problems of broken bright spots, black spots and the like of the folding screen are prevented, and the use effect of the folding screen is ensured. And moreover, the movement form of the folding screen is not influenced, and scratching abnormal sound is not generated, so that the use effect of the foldable electronic equipment can be improved. In addition, the folding screen is simple in structural design and convenient to assemble.

The invention provides a polaroid, a display module and a display device.The polaroid comprises a polarizing layer, a compensation layer and a first bonding layer, and the compensation layer is arranged on one side of the polarizing layer; the first bonding layer is arranged between the compensation layer and the polarization layer, the first bonding layer comprises a plurality of first bonding parts, and the first bonding parts comprise thermal expansion materials; wherein the first bonding parts extend in the first direction, the multiple first bonding parts are arranged at intervals in the second direction, and the first direction intersects with the second direction. According to the polaroid provided by the invention, the first bonding part formed by the thermal expansion material is arranged between the compensation layer and the polarizing layer, and the first bonding layer expands in the process of a high-temperature and high-humidity experiment, so that the overall shrinkage amount of the polaroid is reduced or the whole polaroid does not shrink. Besides, in the display module, the polaroid does not excessively pull the packaging layer at the boundary position, so that the packaging integrity of the packaging layer is ensured, water vapor is prevented from entering the packaging layer to form black spots, and the display performance is improved.

This invention provides a display panel, comprising: a display area, an aperture area, and an isolation area located between the display area and the aperture area. The isolation area is characterized by comprising: a substrate; an inorganic insulating layer on the substrate, the inorganic insulating layer having at least one recess; a light-emitting layer and a cathode located on the side of the inorganic insulating layer away from the substrate, wherein the light-emitting layer and the cathode are disconnected at the at least one recess in the inorganic insulating layer as they extend from the display area to the isolation area. The display panel provided by this invention, by providing a recess in the inorganic insulating layer of the isolation area, can isolate both the light-emitting layer and the cathode, preventing further corrosion of the light-emitting layer and cathode under the influence of water and oxygen, and also isolating the cathode signal to prevent the aggravation of black spot phenomena.

The utility model discloses a display module and a display device, and belongs to the technical field of display. On one hand, the bending part in the back plate is bent towards the optical film assembly so as to support the optical film assembly. And on the other hand, the second reflection part in the optical reflection assembly can effectively reflect light which is originally leaked out of the edge of the screen and guide the light to the interior of the optical film assembly and the direction of the display panel again, so that the consistency of the brightness of the edge of the screen and the brightness of the central area is ensured. Therefore, compared with a traditional display module structure, a traditional plastic middle frame can be completely omitted, and the risk that tiny chippings generated by a buckle fixing mode between the plastic middle frame and the back plate enter a displayer is fundamentally eliminated. In this way, potential light path interference factors such as bright spots, dark spots or uneven brightness are reduced, the optical film assembly and the display panel are effectively protected against pollution, and therefore the image quality of the display panel is remarkably improved.

An optical structure for optimizing a lamp black area comprises a decoration frame, a fogging inner assembly and a light source plate support, the decoration frame and the fogging inner assembly are connected with the light source plate support, and a black area optimizing structure is arranged on the decoration frame. The optical patterns on the front face of the decorative frame directionally scatter incident light to the parting area of the fixed side position lamp and the movable side position lamp, the light is totally reflected during large-angle side view through the optical patterns, and light attenuation caused by parting shielding of a traditional structure is compensated. Through light path control, the light intensity at the parting position is improved, and local dark spots of a traditional pattern-free area are eliminated. The leather texture surface of the black area inhibits stray light reflection through surface micro scattering, halo formed by multiple reflection of light in the decoration frame is avoided, the leather texture surface effectively blocks light leakage, the boundary contrast of the fixed side position lamp and the movable side position lamp is improved, and the cost is saved through double-shot molding of the decoration frame.