532 results about "Polarised light" patented technology

The invention belongs to the field of infusion monitoring, and particularly relates to a target container liquid level visual detection and early warning method and system.The method comprises the steps that an enhanced image and a three-dimensional point cloud sequence are obtained by collecting a target container deformation image, a three-dimensional point cloud and flexibility attribute data and conducting polarized light enhancement preprocessing; obtaining a deformation feature space and a deformation liquid level line feature sequence of the target container at different time points by means of a spatial-temporal feature extraction model, and constructing a three-dimensional dynamic deformation model in combination with three-dimensional modeling, finite element analysis and a NeoHookean model; based on the model, an undeformed standard model and a simulation algorithm, obtaining a correlation mapping function of the liquid level line deviation and a deformation characteristic space; the correlation mapping function is fed back to the spatial-temporal feature extraction model, the height and coordinates of the corrected deformation-free liquid level line are obtained in combination with the real-time target container deformation image, real-time monitoring and early warning in the infusion process are finally achieved in combination with a preset early warning rule, and the accuracy and reliability of infusion monitoring are improved.

The invention relates to the technical field of optical element surface shape dynamic measurement scheme design, in particular to an element surface shape dynamic measurement system based on a metasurface. According to the scheme, polarized light emitted by a laser is split into reference light and test light, the test light passes through a quarter-wave plate twice to realize polarization orthogonalization, and the test light is combined with the reference light to form elliptically polarized light; synchronously capturing component intensities of left-handed / right-handed circular polarized light and orthogonal line polarized light by using a detector, and resolving a phase difference delta in real time by combining a Stokes parameter; environmental interference is eliminated based on a common-path design, a polarization beam-splitting element is omitted, and the architecture is simplified; accurate dynamic measurement of the surface shape of the measured piece is realized by deducting the inherent surface shape error of the system. The system provided by the invention has the advantages of strong anti-interference performance, high measurement efficiency, remarkable cost reduction and the like, and is suitable for precise optical manufacturing and on-line detection scenes.

The invention relates to the technical field of material analysis, in particular to a light microscope-field emission electron microscope combined shale rock slice analysis and identification method, which comprises the following steps of: firstly, combining a brightness distribution condition represented by a bright field image of a shale rock slice and a birefringence deviation condition represented by a cross polarization image from an optical angle; determining a mineral discrimination index representing an atomic number agent; applying offsets of different sizes based on the distribution condition of mineral discrimination indexes and the surface fluctuation condition of shale rock slices, and determining a position offset vector by combining gray scale gradient distribution on the basis; and finally, determining the cross-scale positioning and more accurate electron microscope objective table coordinates corresponding to each pixel point in combination with a position offset vector in a pixel coordinate conversion process based on an image physical distance scale and rotation translation processing, so that the cross-scale positioning accuracy of the optical microscope and the field emission scanning electron microscope is higher. The reliability of analyzing and identifying the shale rock slice is obviously improved.

The utility model discloses a visual system, which comprises a lens barrel, and a first lens, a reflective polarizing element, a quarter-wave plate, a second lens, a third lens and a partial reflection element which are assembled in the lens barrel and are sequentially arranged from a first side to a second side along an optical axis, the second lens has positive focal power and a plano-convex surface type, and the second side surface of the third lens is a convex surface; a first spacing element is arranged between the first lens and the second lens, and a second spacing element is arranged between the second lens and the third lens. The curvature radius R1 of the first side face of the first lens and the outer diameter D0s of the end face of the first side of the lens barrel meet the condition that R1 / D0s is larger than or equal to 1.37 and smaller than or equal to 1.80. The outer diameter D1s and the inner diameter d1s of the first side face of the first spacing element and the center thickness CT1 of the first lens meet the condition that (D1s-d1s) / CT1 is larger than or equal to 0.14 and smaller than or equal to 2.04. The axial distance EP01 from the first side end face of the lens barrel to the first side face of the first spacer element, the maximum thickness CP1 of the first spacer element and the axial distance EP12 of the first spacer element and the second spacer element satisfy 0.99 < = (EP01 + CP1) / EP12 < = 2.47.

The utility model discloses a visual system. The visual system comprises a first lens cone and a second lens cone which are sequentially arranged from a first side to a second side along an optical axis, and a first lens group and a second lens group which are respectively supported on the two lens cones, the first lens group sequentially comprises a first lens, a reflective polarizing element and a quarter-wave plate, and the second lens group sequentially comprises a second lens, a partial reflection element and a third lens; the focal power of the first lens and the second lens is positive, the surface types of the first lens and the third lens are convex and concave-convex respectively, and the second side surface of the second lens is a convex surface; the second lens and the third lens are glued; the second lens group can move along the optical axis to be close to or far away from the display on the second side, so that the system is switched between the first state and the second state; the visual system satisfies the following conditional expressions: 0.33 < = (fz / f23) * (La / Lb) < = 1.10 and 0.75 mmlt; (dbs / dam) * [delta] flt; and the thickness is 1.95 mm.

Embodiments of the present application relate to the display field, and particularly relate to a display module and a display device. The display module comprises: a display panel and a polarizing layer which are stacked in sequence, the display panel comprising a bending area and a non-bending area; a first optical adhesive layer located on a surface of the polarizing layer away from the display panel, the first optical adhesive layer comprising a first groove, a normal projection of the first groove on the display panel covering the bending area, and a bending-resistant material being in the first groove; and a first cover plate located on a surface of the first optical adhesive layer away from the polarizing layer, and the first cover plate having a regulating layer on a surface thereof away from the first optical adhesive layer, the regulating layer comprising a regulating material, the bending-resistant material and the first optical adhesive layer forming a boundary line, and at least part of the boundary line falling within a normal projection range of the regulating layer on the surface of the first cover plate away from the first optical adhesive layer. The embodiments of the present application are beneficial to improving the folding performance of the display module.

The invention discloses a visual system which comprises a lens cone, a lens group and a spacing element group, wherein the lens group and the spacing element group are assembled in the lens cone; the lens group comprises a first lens with positive focal power, a reflective polarization element, a first quarter-wave plate, a second lens with positive focal power, a third lens with negative focal power, a partial reflection element and a second quarter-wave plate which are sequentially arranged from the first side to the second side along the optical axis. The fourth lens has negative focal power; the spacing element group comprises a first spacing element, a second spacing element, a third spacing element and a fourth spacing element; wherein the number of the lenses with focal power in the lens group is four; the effective focal length f1 of the first lens and the effective focal length f of the visual system satisfy 1.5 lt; f1 / flt; 1.9); the combined focal length FG1 of the first lens, the reflective polarizing element and the first quarter-wave plate and the inner diameter d1s of the first side surface of the first spacing element meet the following conditions: 2.35 lt; fG1 / d1slt, FG1 / d1slt; and 2.75%.

To provide a laminate in which occurrence of surface unevenness of a resin layer caused by an uneven structure of a peelable base material film is suppressed, when the resin layer is peeled from the base material film, a laminate with an adhesive layer, a polarizing film and a polarizing film with an adhesive layer using the same, and a method for manufacturing a polarizing film.SOLUTION: A laminate has a first resin layer, a second resin layer and a peelable base material film in this order, wherein the first resin layer contains a first resin having storage elastic modulus measured as a film with a thickness of 1 mm of 650 MPa or more and 1,700 MPa or less, and the second resin layer contains a second resin having storage elastic modulus measured as a film with a thickness of 1 mm of 10 MPa or more and less than 650 MPa.SELECTED DRAWING: Figure 1

The invention provides a reflective polarized brightness enhancement film capable of replacing a diffusion plate and a preparation method of the reflective polarized brightness enhancement film, and relates to the technical field of optical thin films. According to the reflective polarization brightness enhancement film, through the three-layer integrated design of the upper reflective polarization composite film, the middle micro-scattering dodging layer and the lower strong-scattering shielding layer, the reflective polarization brightness enhancement film can directly replace an independently-arranged diffusion plate in a liquid crystal display backlight module. Experiments prove that the reflective polarized brightness enhancement film disclosed by the invention has a relatively good shielding effect while keeping relatively high brightness. Besides, the reflection type polarized light brightness enhancement film can directly replace an independently-arranged diffusion plate in the liquid crystal display backlight module, the thickness of the backlight module can be reduced, the weight can be reduced, the material and assembly cost can be reduced, and light, thin and low-cost display product design can be achieved.

The invention discloses a display panel, a manufacturing method and 3D display equipment, relates to the technical field of display, and discloses the display panel which comprises a first polarizing film layer, a polarization converter, a liquid crystal layer, a CF substrate and a TFT substrate. The polarization converter is arranged on one side of the CF substrate; the first polarizing film layer is arranged on one side, far away from the CF substrate, of the polarization converter; the liquid crystal layer is arranged between the first polarizing film layer and the TFT substrate. The first polarizing film layer performs polarization analysis on the initial linearly polarized light from the liquid crystal layer and outputs the linearly polarized light after polarization analysis to the polarization converter; the polarization converter converts the linearly polarized light after polarization analysis into left-hand circularly polarized light and right-hand circularly polarized light which are alternately distributed in space. Therefore, the polarization converter is arranged in the display panel, the polarization state of the light can be completed in the display panel, crosstalk generated by a composite light path formed when the light penetrates through an external hanging structure is reduced, and the use experience of an observer is improved.

A display device can include a lower substrate having a plurality of rigid areas and a malleable area enclosing the plurality of rigid areas, a plurality of first plate patterns disposed on the plurality of rigid areas of the lower substrate, a plurality of light emitting diodes disposed on the plurality of first plate patterns, and a polarization plate disposed on the plurality of light emitting diodes and including a plurality of polarization patterns and a black pattern enclosing the plurality of polarization patterns. The polarization patterns overlap the rigid areas and the black pattern overlaps the malleable area. Accordingly, the polarization plate having a black pattern is formed to improve the outdoor visibility and improve the black luminosity.

The application discloses a mobile phone screen display image enhancement method and system, and relates to the technical field of mobile phone screen control.The method comprises the following steps: acquiring a user face video stream and mobile phone space motion data; identifying head posture information according to the user face video stream; identifying mobile phone posture information by using an extended Kalman filter according to the mobile phone space motion data; calculating a polarization axis included angle between a polarization axis of polarized sunglasses and a polarization axis of a mobile phone screen according to the head posture information and the mobile phone posture information; determining mobile phone screen adjustment parameters according to the polarization axis included angle; and performing compensation processing on the mobile phone screen according to the mobile phone screen adjustment parameters, wherein the compensation processing comprises brightness compensation and color compensation.The application can determine mobile phone screen adjustment parameters in combination with head posture information and mobile phone posture information, and perform brightness compensation and color compensation, so as to realize display image enhancement, and improve accuracy and user experience.

This invention provides an antistatic and privacy-protecting polarizing film and its preparation process, belonging to the field of polarizing film preparation technology. The preparation process includes the following steps: preparation of an antistatic agent; preparation of a modified adhesive; preparation of a composite polarizing film; and preparation of the polarizing film. This invention introduces an antistatic agent and POSS-modified graphene oxide into the modified adhesive, making the adhesive layer a conductive medium connecting multiple layers such as the polarizing film (PVA), TAC layer, and privacy film, forming a cross-layer conductive path. This avoids static electricity accumulation at the interface, improving the antistatic effect. Boric acid is first used to crosslink the PVA film, followed by glyoxal crosslinking, achieving long-term reliability of the polarizing film under high temperature and high humidity environments.

To provide a polarization film having a non-polarization part, excellent in a shape maintenance performance of the non-polarization part, while preventing the non-polarization part from re-coloring.SOLUTION: A polarization film is composed of a resin film including a dichroic organic pigment, and includes a non-polarization part. In one embodiment, when the polarization film is put in a wet heat test standing under a 65°C and 90%RH environment for 24 hours, a change rate in the polarization film is 3.0% or less with regard to a circumference of the non-polarization part before and after the wet heat test. In another embodiment, when the polarization film is put in the wet heat test standing under a 65°C and 90%RH environment for 24 hours, a change rate in the polarization film is 5.0% or less with regard to an area of the non-polarization part before and after the wet heat test.SELECTED DRAWING: Figure 1

The invention relates to the technical field of waste liquid crystal panel separation and recovery treatment, and discloses a separation device and method for a polarizing film on a waste liquid crystal panel, and the separation device comprises a working table, a laser polarization separation mechanism, a movable support mechanism and a scraper knife automatic collection mechanism; a clamp is installed on the working table top and used for fixing a liquid crystal panel. The laser polarization separation mechanism comprises a light source assembly and a laser galvanometer cleaning head, and the light source assembly is electrically connected with the laser galvanometer cleaning head; the laser galvanometer cleaning head faces the liquid crystal panel; the movable support mechanism is installed between the working table and the light source assembly, and the laser galvanometer cleaning head is installed at the movable end of the movable support mechanism. And the automatic scraper knife collecting mechanism is mounted on the working table. According to the device, automatic separation of the polarizing film and the glass substrate in the waste liquid crystal panel is achieved, the whole process is efficient and low in pollution, the recycling treatment cost of the liquid crystal panel is reduced, and meanwhile the disassembling efficiency is greatly improved.

The invention discloses a low-glare and glazing-free court lamp which comprises a radiator, a light-transmitting plate, a light source module and a plurality of reflecting covers. The light-transmitting plate is fixed at the bottom of the radiator, and the light-transmitting plate and the radiator define an accommodating cavity; the light source module is arranged in the containing cavity and comprises a lamp panel and a plurality of lamp bead assemblies, the top face of the lamp panel is fixed to the radiator in an attached mode, and the lamp bead assemblies are arranged on the bottom face of the lamp panel. And the plurality of reflecting covers are arranged in the accommodating cavity and respectively cover the plurality of lamp bead assemblies. By arranging a plurality of reflecting covers which respectively cover a plurality of lamp bead assemblies, the product can be flatly placed and installed, a projection angle does not need to be placed, light can be obliquely emitted, polarized light output is achieved, the effect that light cannot be seen is achieved, then low glare and no upper light are achieved, and the illumination requirement of a court can be met; relevant court lighting standards are achieved, and convenience is brought to use.

This invention relates to the field of optoelectronic detection technology and discloses an online detection system for screen color uniformity based on dynamic rotating polarization spectrum. The system includes an online transmission module for carrying and driving the illuminated screen under test to move continuously along a set direction at a set speed; and a combined optical encoding module, positioned above the screen under test, comprising a static spatial-spectral phase delay mask and a continuously rotating polarization modulator arranged sequentially along the beam propagation direction. By driving the screen to continuously translate using the online transmission module, and cooperating with the continuously rotating polarization modulator and hyperspectral acquisition module to acquire dynamic spatiotemporal aliasing data, the accuracy of the spectral dimension can be guaranteed. Furthermore, by extracting high-precision chromaticity parameter matrices and multidimensional polarization distortion feature matrices from the decoupled and reconstructed optimal polarization spectral tensor solution, the system's ability to detect complex internal quality problems can be significantly enhanced.

The purpose of the present invention is to provide a PVA film that makes it possible to obtain a polarizing film without diminishing the high polarization performance when the PVA film is stretched at a high stretching speed. The purpose of the present invention is also to provide a polarizing film using such a PVA film as the starting material.　Provided is a polyvinyl alcohol film that contains a polyvinyl alcohol having a degree of saponification of at least 98 mol% and a degree of polymerization of 1200 to 8000, wherein formula (1) is satisfied by the results of measuring the polyvinyl alcohol with a gel permeation chromatograph at a measurement temperature of 40°C and using hexafluoroisopropanol having 20 mM sodium trifluoroacetic acid added thereto as a mobile phase solvent.　Formula (1): 0.017 ≤ Huv2 / Hri2 ≤ 0.030 (provided that: Huv2 is the detection strength at an absorption wavelength of 210 nm for a polymethyl methacrylate–based molecular weight in which the base 10 logarithm is 4.3, obtained using an ultraviolet / visible light detector (UV detector) of a gel permeation chromatograph; and Hri2 is the detection strength for a polymethyl methacrylate–based molecular weight in which the base 10 logarithm is 4.3, obtained using a refractive index detector (RI detector) of a gel permeation chromatograph).

A polarization film includes: a base substrate in which a folding axis and a stretched axis are defined; and a deformation portion located at an edge of the base substrate. The stretched axis forms an angle of less than about 45° with respect to the folding axis. The display device, in which a folding area at which a folding axis is located and a non-folding area neighboring the folding area are defined, includes a display panel; a first adhesive layer on the display panel; and a polarization film on the first adhesive layer, where a stretched axis is defined in the polarization film. An angle between the folding axis and the stretched axis is less than about 45°.

The utility model relates to the technical field of 3D-LED electronic display screens, and provides a polarized light 3D LED electronic display screen with a sound transmission structure, which comprises an LED sound transmission screen, a 3D polarized light film, an independent polarized light film, a strip-shaped 3D polarized light film and a polarized light lamp bead screen, and is characterized in that the LED sound transmission screen comprises a PCB (printed circuit board), the upper surface of the PCB is fixedly connected with a left LED lamp bead, and the lower surface of the PCB is fixedly connected with a right LED lamp bead; a right LED lamp bead is fixedly connected to the upper surface of the PCB, and a sound transmission hole is formed in the surface of the PCB. Through the arrangement of the sound transmission holes, when the screen plays videos and audios, sound can be transmitted out from the sound transmission holes, a viewer can have a more immersive feeling, the overall viewing experience is improved, through the arrangement of the 3D polarizing film, when the LED lamp beads are normal lamp beads, the 3D film viewing effect is achieved, and a certain degree of protection can be provided for the LED lamp beads.

A method for preparing a circularly polarized light antireflection compensating film, an AMOLED display panel, and a method for preparing a circularly polarized light antireflection compensating film, comprising the following steps: step 01, dissolving resin in a solvent to form a coating liquid; step 02, coating the coating liquid obtained in step 01 on a substrate to form a coating film; step 03, drying the coating film obtained in step 02, and obtaining an unstretched film with a substrate; step 04, peeling the unstretched film from the substrate to obtain an unstretched film with a thickness of 80-800 microns; step 05, preheating the unstretched film obtained in step 04 at a temperature of Tg±50 DEG C; step 06, stretching the preheated unstretched film at a temperature of Tg-Tg+30 DEG C; step 07, heat setting the stretched film at a temperature of Tg-Tg+10 DEG C; and step 08, laminating the obtained stretched film with a polarizing sheet to obtain a circularly polarized light antireflection compensating film. The circularly polarized light antireflection compensating film exhibits a positive correlation between the absolute value of the phase difference and the wavelength in a wide wavelength range.

This foreign matter detection system is provided with: an imaging device (9) that acquires an image within a target region (A); transmissive sections (7, 8), the outside of which can be seen from the inside of the target region (A); and polarizing filters (10a, 10b) on the light path from the transmission sections (7, 8) to the imaging device (9). A polarizing filter (10a) on the front side with respect to the imaging device (9) and a polarizing filter (10b) on the rear side with respect to the imaging device (9) are provided so that the polarization directions intersect each other. On the basis of the image acquired by the imaging device (9), the foreign matter (F) in the target region (A) is detected.

This application discloses a high-precision error compensation method for the optical axis of a continuous zoom lens, relating to the field of lens inspection. The continuous zoom system is disassembled into independent components and mounted on a rotating stage centering fixture. Static center offset data for each component is calculated by rotating and acquiring the image point trajectory circle. Sampling parameters are set according to the zoom ratio of the continuous zoom system and the movement speed of each component along the optical axis during zooming, while simultaneously acquiring dynamic optical axis offset data of the components. A nonlinear mapping relationship is constructed between the static center offset data and the dynamic optical axis offset data, and a center offset-optical axis error coupling model is established. Based on the deviation compensation amount, the actuator is driven to adjust the position and / or angle of the components, and the optical axis accuracy index is verified after compensation. This solution achieves deep coupling between static and dynamic data, improving the accuracy of error tracing and the specificity of compensation; ensuring coverage of key error locations during zooming; supporting real-time compensation, and enhancing the stability and accuracy of the system during zooming.

To provide a polarizing film that can achieve both crack resistance in thermal shock tests and resistance to red degradation in heating reliability tests, while also having a good appearance. [Solution] A polarizing film in which a dichroic substance is adsorbed and oriented on a polyvinyl alcohol-based film and its orientation is fixed by boric acid crosslinking, wherein the thickness is 20 μm or less, and satisfies the condition of the length ratio represented by the general formula: B / A ≥ 2.0 (wherein A represents the length (mm) parallel to the absorption axis of the polarizing film, and B represents the length (mm) perpendicular to the absorption axis of the polarizing film, and is a value of 900 or more), contains 0.05% by weight or more of zinc element, is free of foreign matter larger than 50 μm, has a maximum height (Rz) of less than 5 μm as defined in JIS B 0601-2001, and the difference between the maximum and minimum values ​​of the boron content (by weight) in the direction perpendicular to the absorption axis of the polarizing film is 0.4% by weight or less.

The invention discloses a nano-composite anti-falling polarized lens which sequentially comprises a substrate layer, a polarized film layer, a nano-composite anti-falling transition layer and a nano-composite anti-falling surface layer from bottom to top. The substrate layer is a polycarbonate base material layer, the thickness of the substrate layer is 0.8-2.0 mm, the light transmittance of the polycarbonate base material layer is greater than or equal to 90%, the polarizing film layer is a polyvinyl alcohol polarizing film, the thickness of the polarizing film layer is 20-50 [mu] m, and the polarization degree of the polyvinyl alcohol polarizing film is greater than or equal to 99%. According to the invention, the nano-composite anti-drop transition layer and the surface layer structure are introduced, and an accurate coating and stepped curing process is adopted, so that collaborative improvement of interlayer adhesion, polarization durability and surface wear resistance of the lens is realized, and finally, a polarized lens product with high optical performance and super-strong durability is obtained.

The application discloses a display assembly and a streaming media rearview mirror. The display assembly comprises an anti-glare display module, the anti-glare display module at least comprises a first polarizing layer, an anti-glare adjusting layer and a reflecting layer arranged in sequence along the thickness direction of the anti-glare display module, the anti-glare adjusting layer at least comprises two glass substrates and a liquid crystal layer encapsulated between the glass substrates; the display assembly further comprises a backlight module, the backlight module is located at one side of the anti-glare display module in the thickness direction; the streaming media rearview mirror comprises the display assembly. The scheme integrates the light modulation function of the traditional independent LC mirror and the image generation function of the liquid crystal display screen in the same anti-glare display module, can cancel the independent LC mirror module and the matched glass substrate, polaroid and other components, realizes the substantial reduction of the overall thickness and weight of the display module, and meets the needs of the automobile electronics for space saving and light weight.

This polarization film comprises a polarization membrane having a transparent protective film attached to both sides thereof. The polarization membrane: is formed of a polyvinyl alcohol-based film to which iodine is adsorbed and oriented; and has an iodine concentration of 3-10 wt%. At least one of the transparent protective films has a moisture permeability of 200 g / (m2∙24 h) or less. The polarization film comprises the condition that the change amount (ΔTs) of single film transmittance represented by general formula (1): ΔTs (%) = Ts750 - Ts0. The polarization film: has excellent initial polarization performance; excels in suppressing the deterioration in single film transmittance in a high-temperature environment, such deterioration being caused by coloring of the polarization membrane; and also excels in suppressing a deterioration in polarization performance in a high-temperature / high-humidity environment (humidity resistance).

The present invention relates to a composite pane comprising a first pane (1; 7), a second pane (2; 7), and a bonding structure (3; 5; 6), the first pane (1; 7) being connected to the second pane (2; 7) via the bonding structure (3; 5; 6), the second pane (2; 7) having a coating (4), the coating (4) being designed to reflect polarised light incident directly on the second pane (2; 7) and to transmit light incident on the second pane (2; 7) through the first pane (1; 7) and the bonding structure (3; 5; 6), the composite pane comprising a coloured layer (5; 6; 7), characterised in that the coloured layer (5; 6; 7) has, in the L*a*b* colour space, an L* value between 70 and 100, in particular between 80 and 100, an a* value between -20 and 0, in particular between -10 and 0, and a b* value between -20 and 10, in particular between -10 and 10, the coloured layer (5; 6; 7) being designed to reflect more than 20% of infrared light, preferably more than 50%.

The invention relates to an eye movement tracking transparent near-to-eye display optical structure based on deflectable pixel light, which relates to the field of photoelectric display and comprises a display module, a light deflection module and an eye movement tracking module, the display module comprises a transparent substrate, a light-emitting pixel array and a micro-collimation element. The light deflection module comprises a polarization element array wrapped by magnetic materials, voltage is applied to polarization elements to generate electromagnetic force to control the deflection angle of single pixel light, and the light is made to point to the center of the pupil of the human eye. The eye movement tracking module comprises a visual sensor and a microprocessor, the visual sensor is used for acquiring human eye fixation point information, the microprocessor controls the lightening state and the deflection angle of a corresponding pixel according to the fixation point information, and selective deflection and light emitting of the pixel in a fixation point area are achieved. The retina projection display is realized through pixel-level light deflection, the light is directly focused on the retina, and visual fatigue caused by depth mismatching of a virtual image and a real environment in traditional near-to-eye display is eliminated.