656results about How to "Increase brightness" patented technology

The invention relates to the field of image enhancement, in particular to an image enhancement method and system of a vehicle-mounted image sensor. The method comprises the following steps: acquiring driving record images of a vehicle at multiple angles; dynamic scene self-adaptive exposure adjustment is carried out on the driving record images of the vehicle at the multiple angles, so that multiple self-adaptive exposure driving images are obtained; carrying out deep network noise identification on the plurality of adaptive exposure driving images, and carrying out dynamic filtering and noise reduction on sub-images one by one so as to generate a plurality of filtering and noise reduction optimized images; carrying out image texture analysis on the plurality of exposure sub-images, and carrying out texture distortion reconstruction to construct a plurality of texture reconstruction images; and road object visual identification is carried out on the plurality of texture reconstruction images, and adaptive contrast enhancement processing is carried out, so that a plurality of detail contrast enhancement images are constructed. According to the invention, a high-definition and stable panoramic vehicle-mounted image is realized.

The invention discloses a light-emitting diode epitaxial wafer, a preparation method thereof and a light-emitting diode, and relates to the technical field of semiconductors. The light-emitting diode epitaxial wafer comprises a substrate, a buffer layer, an N-type semiconductor layer, a low-temperature stress release layer, a multi-quantum well light-emitting layer, an electron blocking layer and a P-type semiconductor layer. The multi-quantum well light-emitting layer comprises a first sub-layer, a second sub-layer, a third sub-layer and a fourth sub-layer which are stacked in sequence, and each of the first sub-layer, the second sub-layer, the third sub-layer and the fourth sub-layer comprises an InGaN quantum well layer and a GaN quantum barrier layer which are periodically and alternately stacked; an electron injection layer is inserted into at least one of the GaN quantum barrier layer of the first sub-layer, the GaN quantum barrier layer of the second sub-layer and the GaN quantum barrier layer of the third sub-layer; and a hole injection layer is inserted into the GaN quantum barrier layer of the fourth sub-layer. By implementing the invention, the electron hole matching degree of the multi-quantum well light-emitting layer can be improved, so that the luminous efficiency of the light-emitting diode is improved.

The invention relates to an underwater image enhancement method and device based on generative adversarial network multi-scale fusion, and the method comprises the steps: obtaining an original underwater image, and carrying out the preprocessing of the original underwater image; inputting a preprocessing result into an underwater image enhancement model based on generative adversarial network multi-scale fusion to obtain an enhanced underwater image; the underwater image enhancement model comprises a generator and a discriminator, and the generator is obtained by replacing the last downsampled convolution module in an encoder of the U-Net network with a multi-scale feature fusion module; and the multi-scale feature fusion module is used for extracting multi-scale fusion features by adopting multi-scale convolution, residual connection, dense connection and a global attention mechanism. The method can adapt to different underwater scenes and enhance the image quality, the color cast and brightness recovery of the underwater image are improved, the robustness of the image is kept, and color distortion and noise artifacts are avoided.

The invention discloses a diseased fish detection method and device, and belongs to the technical field of computer vision detection. In order to solve the problems that in the prior art, diseased fish disease detection efficiency is low, accuracy is not high, and real-time detection cannot be achieved, a diseased fish detection model is constructed, and the diseased fish detection model comprises a backbone network, a neck network and a detection head network; the method comprises the following steps: inputting a diseased fish image into a backbone network based on a spatial deep convolutional neural network for feature extraction to obtain a visual feature map, and then inputting the visual feature map into a contrast-enhanced attention transfer structure of a neck network for feature fusion processing to obtain a fused feature map; and the fusion feature map is input into a detection head network, and a sick fish target detection result is obtained through detection of a multi-head prediction small target detection algorithm, so that fish school disease detection is performed in real time, the detection efficiency and detection precision of fish diseases are effectively improved, and the method has relatively high practicability and application universality.

The utility model discloses a modified aluminum foil composite fabric which comprises an aluminum-plated layer, an aluminum-plated layer, an aluminum-plated layer and an aluminum-plated layer, a first thin film; an aluminum foil layer; and a second film. According to the modified aluminum foil composite fabric, the sewable performance of the fabric is improved, and meanwhile the modified aluminum foil composite fabric has good attaching performance, radiant heat resistance and fire resistance.

The invention relates to the technical field of adaptive optics, and particularly provides a wavefront detection system for a dark and weak target under a strong sky background, the wavefront detection system comprises a Shack-Hartmann wavefront sensor system and a wavefront detection processing unit, the Shack-Hartmann wavefront sensor system carries out wavefront detection on a short wave infrared band of 1.3-1.7 [mu] m, and the wavefront detection processing unit carries out wavefront detection on the short wave infrared band of 1.3-1.7 [mu] m. And the wavefront detection processing unit corrects a sub-aperture image obtained by detection through a weighted self-threshold local contrast algorithm, performs self-threshold operation on pixels in a center unit according to a gray scale ratio weight of the center unit and a background unit of the sub-aperture image, introduces an energy weight to eliminate PNHB noise, and reconstructs a centroid of the sub-aperture image. According to the invention, a Shack-Hartmann wavefront sensor system is applied to a short-wave infrared band, so that a sky background spectrum is effectively blocked, the target brightness is ensured, background light radiation photons received by a detector are reduced to the greatest extent, various noises and background interferences are inhibited by optimizing a threshold algorithm, and the wavefront detection precision is remarkably improved.

The invention provides fluorescent conversion type red fluorescent powder for display as well as a preparation method and application thereof, and belongs to the technical field of light-emitting display materials. Metal Sr, metal Al and metal Eu are mixed and smelted according to the stoichiometric ratio and then ground to prepare alloy powder, lithium aluminum hydride powder and the alloy powder are ground, mixed, calcined and ground again, and the red fluorescent powder for laser display with high brightness under blue light excitation is prepared. According to the invention, an alloying method is combined with a nitriding method, and the molar ratio (greater than 70%) of Eu < 2 + > (radiative transition) in all Eu elements in the prepared fluorescent powder product is greatly increased, so that the prepared red fluorescent powder has high color purity, high luminous efficiency and thermal stability, and meanwhile, a sample has an ultrahigh saturation threshold value under the excitation of blue laser; the material can be applied to a fluorescence conversion type laser display technology, and has huge potential for laser display devices.

The invention provides a spinal endoscopic image deblurring method and system, and the method comprises the steps: carrying out the multi-scale convolution operation of a spinal endoscopic image, obtaining the difference of image contrast among different scales, segmenting the spinal endoscopic image into a plurality of local structure images, and obtaining a plurality of local structure images; determining the brightness uniformity of each local structure image through the distribution gradient of the pixels in each local structure image and the difference quantity of the contrast; determining the dependency relationship of the textures between the adjacent local structure images through the texture difference between the adjacent local structure images on the spine tissue structure; performing contrast enhancement on the brightness of the local structure image according to the dependency relationship and the brightness uniformity to obtain a local enhanced image; and fusing and reconstructing the fuzzy region through all the local enhanced images to obtain a deblurred spinal endoscope image. By adopting the scheme provided by the invention, local adaptive equalization enhancement of the image brightness of the spinal endoscope can be realized, so that detail blurring caused by non-uniform illumination is reduced.

The invention relates to the field of anorectal departments, and provides an anorectal postoperative endoscopic multifunctional examination device and an examination method thereof.The anorectal postoperative endoscopic multifunctional examination device comprises an insertion pipeline, a lens part is installed at the end of the insertion pipeline, an assembling boss is installed in the middle of the front end of the lens part, and a camera is installed at the front end of a convex head part of the assembling boss; a plurality of light supplementing lamps are installed on the outer side of the front end of the assembling boss at equal intervals, a radian transparent cover is installed on the outer side of the front end of the lens part, an inner carrying cylinder is installed in the lens part, a pulling assembly is arranged in the middle of the inner carrying cylinder in a sliding mode, hot air assemblies are installed at the top end and the bottom end of the inner carrying cylinder correspondingly, and a focusing assembly is installed on the radian transparent cover. During use, the pulling assembly, the hot air assembly and the focusing assembly are utilized, the problem of water mist condensation caused by light reflection, ghosting hot spots and temperature difference of the endoscope camera due to the transparent protective cover is avoided, and the imaging quality and the shooting reliability are improved.

The utility model relates to the technical field of projection equipment, in particular to a light source device which comprises a narrow-spectrum light source, a wide-spectrum light source and a first light combining element, narrow-spectrum light beams emitted by the narrow-spectrum light source and wide-spectrum light beams emitted by the wide-spectrum light source are combined and emitted through the first light combining element, and overlapping wavebands exist between the narrow-spectrum light beams and the wide-spectrum light beams. The first light combining element reflects one of the light in the first polarization state of the overlapped wave band and the light in the second polarization state of the overlapped wave band while carrying out wavelength light combining, and transmits the other one of the light in the first polarization state of the overlapped wave band and the light in the second polarization state of the overlapped wave band. According to the utility model, the light loss during light combination when the wide-spectrum light beam and the narrow-spectrum light beam have overlapped wavebands is reduced, the utilization rate of the wide-spectrum light beam is improved, the light-emitting brightness is more effectively improved, high brightness, high color gamut and good comprehensive performance are realized, and the quality of a projection picture is effectively improved.

The invention relates to the technical field of semiconductor devices, in particular to a semiconductor laser device, which comprises a substrate; the ridge waveguide array comprises a fundamental mode waveguide array and a coupling waveguide array, the fundamental mode waveguide array comprises N fundamental mode waveguides, the coupling waveguide array comprises a plurality of coupling waveguides, and at least one coupling waveguide is provided with an optical loss structure; an electrical isolation structure; the coupling waveguide array is located on one side of the fundamental mode waveguide array, and the number of the coupling waveguides is N-1; or, the two coupling waveguide arrays are located on the two opposite sides of the fundamental mode waveguide array respectively, and the number of the coupling waveguides in each coupling waveguide array is N-1; or, the two coupling waveguide arrays are located on the two opposite sides of the fundamental mode waveguide array respectively, and the total number of the coupling waveguides of the two coupling waveguide arrays is N-1. The semiconductor laser device is at least beneficial to realizing high-power output of the fundamental mode of the semiconductor laser device.

The invention discloses an extracellular vesicle and a preparation method and application thereof, and belongs to the technical field of cosmetics, and the preparation method comprises the following steps: mixing rose and a PBS buffer solution, juicing, and filtering to obtain a filtrate; adding cellulase, xylanase and beta-glucanase into the filtrate, carrying out enzymolysis, and filtering to obtain an enzymatic hydrolysate; and centrifuging the enzymatic hydrolysate, filtering, resuspending and precipitating to obtain the rose extracellular vesicles. The rose extracellular vesicles can guarantee structural integrity and biological activity, can effectively load active ingredients, and can effectively deliver active molecules in the rose extracellular vesicles to target cells through interaction with membranes of skin cells. The extracellular vesicles can be fused with skin cell membranes to enter cells, active ingredients encapsulated by the extracellular vesicles are released, and the absorption efficiency of skin is improved.

This invention relates to the fields of signal transmission, computer vision, image recognition, and printing. It provides a visual inspection method, system, and mobile phone casing for screen printing processes. The method uses a screen printing image recognition algorithm to identify the aperture spacing and mesh size of the screen printing stencil. When the aperture spacing and mesh size are compliant, it prompts the assembly of a compliant screen printing stencil to the printing press for printing the base color layer of the substrate. The substrate, after being left to stand and bake, is then transported to a CCD inspection line for CCD imaging. The system checks for jagged edges, smearing, and light leaks in the characters of the ink-printed layer on the substrate, and determines whether the brightness of the ink in the ink-printed layer is compliant. This improves the efficiency and accuracy of detecting the specifications, serial numbers, aperture spacing, and mesh size of the screen printing stencil, and enhances the efficiency and accuracy of detecting jagged edges, smearing, and light leaks in the characters of the ink-printed layer on the substrate, as well as whether the ink brightness meets requirements, thereby achieving high-quality mobile phone casing production.

The embodiment of the invention provides a laser illumination module and projection equipment. The laser illumination module comprises a light source, a static diffusion sheet, a light combining assembly, a first light uniformizing assembly, a second light uniformizing assembly, a phase delay sheet and a relay part. The light source is used for providing laser beams; the static diffusion sheet is used for carrying out diffusion and speckle elimination on the laser beam; the light combining assembly is used for receiving the light rays emitted by the static diffusion sheet and combining the light rays; the first dodging assembly is used for receiving the combined light and performing primary dodging treatment; the second light uniformizing assembly is used for further uniformizing the light; the phase retarder is arranged on the light emitting side of the first dodging assembly or arranged in the second dodging assembly, and the size of the phase retarder is smaller than that of the laser spot, so that only one part of the laser beam can change the polarization state of the light through the phase retarder, and the other part of the laser beam is kept in the original polarization state to dissipate the spot; and the relay part is used for shaping the light after secondary dodging and reflecting the light to an imaging light path.

The invention relates to the technical field of semantic segmentation, in particular to a night semantic segmentation method based on low illumination enhancement and edge optimization, and the method comprises the steps: inputting an image into a low-light enhancement repair network based on the Retinex theory, local contrast enhancement and adaptive feature fusion, obtaining a denoised and enhanced intermediate image, and carrying out the edge optimization of the intermediate image; inputting the intermediate image into a semantic segmentation network to obtain a category distribution diagram of each pixel; inputting a discriminator embedded with a channel attention module according to the category distribution diagram of each pixel, and optimizing a generator composed of a low light enhancement repair network and a semantic segmentation network through a multi-task joint optimization loss function; and inputting a night image to be detected and segmented into the optimized generator, and outputting a segmentation result. By adopting the method, the low-light enhancement repair network is combined with a local contrast enhancement and channel feature fusion mechanism, so that the overall brightness of the image is improved, the details and edge structures of the image are reserved, and the perception capability and robustness of the model are improved.

According to the method for preparing the nanocrystalline nickel foil through the electro-deposition method and the nanocrystalline nickel foil prepared through the method, a nickel plate serves as an anode, a titanium plate serves as a cathode, the anode and the cathode are both placed in electrolyte, and the nanocrystalline nickel foil is prepared on the titanium plate through electro-deposition by adopting a pulse power source; the electrolyte comprises water and the following components by concentration: 300-500g / L of nickel sulfate; 5-15 g / L of nickel chloride; 0.01 to 0.2 g / L of a wetting agent; 20-60 g / L of a buffer agent; 0.05-2 g / L of a brightener; the pH value of the electrolyte is 2-4, and the electro-deposition temperature is 40-60 DEG C; the buffering agent is selected from one or two of citric acid and sodium citrate; and the brightener is selected from one or more of butynediol propoxide, butynediol ethoxylate, sodium sulfopropyne ether, propynol ethoxylate and glycerol monopropyne ether. Based on the method, the problem that in the prior art, the nickel foil prepared through an electro-deposition method is large in fine grain size is solved.

The invention discloses a blue-light semiconductor laser array dense spectrum beam combining device with a self-adaptive wavelength adjustment function, and belongs to the technical field of blue-light semiconductor laser. The device is characterized in that a first blue light array emits a wavelength-locked collimated laser beam; the first spectroscope splits the light beam to obtain a main light beam and an auxiliary light beam; the first polaroid adjusts the polarization state of the secondary light beam to be S polarization; the first transmission grating diffracts the S-polarized light beam, the S-polarized light beam is reflected by the first adjustable reflector and propagated along an original light path, after the S-polarized light beam passes through the first spectroscope, a transmission part is reflected by the first plane reflector and then passes through the first spectroscope, the transmission part enters the original light path to be modulated again, a reflection part and a main light beam are subjected to space beam combination, and target laser is output; the monitoring and adjusting system analyzes the wavelength and the laser quality of the target laser in real time, adjusts the angle of the first adjustable plane mirror according to the wavelength and the laser quality, and reflects the laser with the target wavelength. The effects of output beam quality improvement, laser volume compression and system reliability improvement are achieved.

The invention discloses an OLED device for improving brightness based on a micro lens. The OLED device comprises a light emitting unit; the light-emitting unit comprises a plurality of sub-pixel light-emitting units; the flat layer is positioned on the light-emitting unit; the first micro-lens group is located on the flat layer and comprises a plurality of sub-pixel micro-lens groups, the number of the sub-pixel micro-lens groups is the same as that of the sub-pixel light-emitting units, and each sub-pixel micro-lens group is located at the orthographic projection position of the corresponding sub-pixel light-emitting unit; and the third micro lens layer is positioned on the first micro lens group. Through the design of the micro-lens array formed by the first micro-lens group and the third micro-lens layer, light loss caused by total reflection is reduced, meanwhile, different sub-pixel micro-lens designs are introduced, and focusing of red, green and blue at the same position is achieved, so that the brightness can be improved, and the chromatic aberration can be improved.

The invention belongs to the technical field of weld joint hot crack evaluation, and particularly relates to an efficient evaluation method for weld joint hot crack sensitivity based on machine vision. A welding hot crack is manufactured by carrying out a three-point bending test on the back of a welding seam in the later solidification period, the welding seam part is transversely covered and scanned by means of a laser rectangular surface light source, a high-resolution CCD is used for collecting a welding seam picture under laser irradiation in real time, and edge information of a crack and shadow combination is recognized through an image processing algorithm. And calculating the crack rate to evaluate the heat crack sensitivity of the weld. The technical problems that an existing hot crack evaluation method is tedious in procedure and low in detection efficiency are solved.

The invention provides a coal mine underground video dust filtration monitoring method based on model fusion, and belongs to the technical field of coal mine underground video dust filtration monitoring. The technical problem to be solved is to provide the coal mine underground video dust filtration monitoring method based on model fusion. According to the technical scheme, video data of an underground operation area environment are collected in real time through a camera installed in an underground coal mine, the video data are uploaded to a server arranged in a roadway in real time, the server firstly intercepts image frames from the underground coal mine video, timestamp marking is conducted on the image frames, and the image frames are sent to the roadway; carrying out histogram equalization preprocessing on each image frame, and improving the brightness and contrast of the collected video image to realize image enhancement; the server further adopts a dark channel prior method to carry out data recovery on the video image, a fuzzy effect caused by dust on the image is removed, and the real definition of the image is recovered; the method is applied to coal mine underground video dust filtration monitoring.

The invention belongs to the technical field of electroplating, and particularly relates to palladium-cobalt alloy electroplating liquid as well as a preparation method and application thereof. The electroplating solution comprises a palladium salt, a cobalt salt, a component A, a component B, a component C, a complexing agent, a conductive salt, a surfactant, a pH regulator and water, the component A is one or more of benzenesulfonic acid and a benzenesulfonic acid derivative, and the derivative refers to at least one substituent group and / or corresponding salt on an aromatic ring; the component B is selected from one or more of compounds shown in the molecular formula I, and the component C is selected from inorganic salts with reducibility. According to the technical scheme provided by the invention, through the synergistic effect of the three added components, the palladium-cobalt alloy coating with low stress, high brightness and adjustable alloy ratio is obtained, and the technical blank is filled. R1-C is equivalent to C-R2 (I).

The utility model relates to the technical field of keyboard backlight modules, in particular to a MINI keyboard backlight module, and solves the technical problems that the whole FPC (Flexible Printed Circuit) manufacturing process of the backlight module in the market in the prior art is relatively complicated, so that the whole cost of the keyboard backlight module is increased when a whole FPC lamp panel is used, and the manufacturing cost of the keyboard backlight module is increased. Meanwhile, the whole FPC lamp panel is limited by the size of production equipment in the manufacturing process, so that the length and the width of the FPC lamp panel can not meet the requirements of certain specific applications, and the practicability of the keyboard backlight module is low. The MINI keyboard backlight module comprises a shading film, a light guide plate, a reflecting film and a lamp panel which are sequentially arranged from top to bottom, the shading film is located on a pattern part on the surface of the light guide plate, the shading film is matched with the reflecting film in boundary dimension, and the lamp panel is arranged at the bottom of the reflecting film. According to the utility model, the effects of reducing the cost and improving the brightness are achieved, and the requirements of some specific applications are met. And the design flexibility and expandability of the keyboard backlight module are improved.

The invention discloses a preparation method of a near-infrared two-region BODIPY dye for marking a biological membrane, and relates to the technical field of biological medicines. The invention aims to solve the technical problems of difficult synthesis, more steps and slower cell membrane labeling speed of the existing cell membrane labeling fluorescent molecules. The method comprises the following steps: by taking a near-infrared two-region aza-BODIPY dye as a main body structure, introducing an alkyl chain and hydrophilic sulfonate or quaternary ammonium salt on a molecular structure, and modifying and coupling to obtain BMP1, BMP2 and BMP3. According to the near-infrared two-region aza-Bodipy dye and the preparation method thereof, a series of BMP1, BMP2 and BMP3 are synthesized, and the near-infrared two-region aza-Bodipy dye is excellent in water solubility. The fluorescence brightness of the three materials before and after being combined with the lipidosome reaches more than 10 times, and the BMP3 material has more excellent hydrophilic performance, does not need DMSO to assist dissolution, can be better combined with the lipidosome, has larger change in fluorescence intensity before and after, and can better become a marking dye of a biological membrane structure material. The near-infrared two-region BODIPY dye prepared by the preparation method disclosed by the invention is used for marking a biomass film.

The invention provides a tunnel water inrush automatic identification method and system based on a water inrush target detection model, and belongs to the technical field of tunnel water inrush disaster monitoring, prevention and control. The method comprises the steps of extracting video image features in a tunnel; mixing the space attention weight and the channel attention weight of the features, and updating the features; fusing the updated features; and decoding the fused features to obtain a target frame and a category result. According to the method, context features are coupled through a content awareness attention mechanism, the generalization of a monitoring model is improved, and accurate recognition of the tunnel gushing water under various tunnel conditions is guaranteed; omnibearing high-precision detection and statistical analysis of the water inrush of the tunnel are further realized, and whether early warning prompt in the tunnel is carried out is judged, so that the evolution condition of the water inrush is predicted, and a guarantee is provided for safe construction of the tunnel.

The invention discloses a light-emitting device and a reflective sighting telescope, the light-emitting device comprises a first substrate, a first light-emitting element, a second light-emitting element and a diaphragm, the first light-emitting element, the second light-emitting element and the first light-emitting element are arranged in a die bonding area of the first substrate, and the first light-emitting element and the second light-emitting element are connected to the first substrate in parallel; the second light-emitting element and the first light-emitting element are arranged along a first direction, and in the first direction, the spacing distance between one side, close to the second light-emitting element, of the first light-emitting element and the second light-emitting element is 1-50 microns; the diaphragm is arranged on the light-emitting sides of the first light-emitting element and the second light-emitting element, and the orthographic projection of a light through hole of the diaphragm on the first substrate is located at the adjacent center of the first light-emitting element and the second light-emitting element, so that light emitted by the first light-emitting element and the second light-emitting element can pass through. The light-emitting device can be used as a point light source with different brightness or different color adjustments for the reflective sighting telescope.

The invention provides a europium ion doped titanate compound as well as a preparation method and application thereof, and relates to the technical field of rare earth luminescent materials. The chemical formula of the titanate compound provided by the invention is K2Ti6O13: xEu < 3 + >, the titanate compound is in a monoclinic system. A proper amount of Eu < 3 + > ions are doped in K2Ti6O13, so that the prepared rare earth fluorescent powder has higher color rendering index and quantum yield, and the luminescent property of a white light LED can be greatly improved; as K2Ti6O13 has good electrochemical performance and relatively high conductivity, the rare earth fluorescent powder provided by the invention can also be used in the fields of illumination, display, photocatalysis and energy storage. And on the other hand, the preparation method provided by the invention is simple in process, mild in condition, convenient for large-scale production and wide in development and application space.

The invention relates to the technical field of backlight modules, and discloses a backlight module and a display device. The optical component containing the red fluorescent powder is arranged in the light emitting direction of the blue light wafer of the backlight module, and the red shift phenomenon of color points of the backlight module is actively caused; meanwhile, quantum dots of a red light excitation wave band are greatly reduced or completely canceled in the quantum film in the light emitting direction of the optical component, and the quantum dot proportion of a green light excitation wave band is increased, so that the color dots are corrected, and the red shift is counteracted; meanwhile, due to the fact that quantum dots of the red light excitation wave band in the quantum film are greatly reduced, the stability of the quantum film is improved, the LED lamp panel can be driven to higher current, the LED light-emitting efficiency is improved, and the overall brightness of the backlight module is improved; and moreover, the color points can be adjusted by adjusting the proportion of the red wave band fluorescent powder, so that different liquid crystal panels can be matched, the composition of the quantum film can be kept unchanged, and the backlight module is more flexible and universal in actual production.

The invention provides a display panel, a preparation method thereof and a display device. The display panel comprises a substrate, a light-emitting device layer, a color film layer and a reflecting layer, wherein the light-emitting device layer, the color film layer and the reflecting layer are arranged on the substrate. The light-emitting device layer comprises a pixel defining layer and a plurality of light-emitting devices, the pixel defining layer is provided with a plurality of pixel openings, the pixel openings are configured to define light-emitting areas of the light-emitting devices, and each light-emitting device comprises a first electrode, a light-emitting layer and a second electrode which are sequentially arranged on the substrate in a stacked mode. The color film layer comprises a plurality of color filter areas and shading areas located between the adjacent color filter areas. The reflecting layer is arranged on the side, away from the substrate, of the color film layer, the orthographic projection of the reflecting layer on the substrate is at least partially overlapped with the orthographic projection of the shading area on the substrate, and the orthographic projection of the reflecting layer on the substrate is not overlapped with the orthographic projection of the pixel openings on the substrate.