893results about "Diffusing elements" patented technology

The embodiment of the invention provides an anti-dazzle low-reflection optical film and a preparation method and application thereof, and relates to the field of optical films. The anti-dazzle low-reflection optical film comprises a base material layer, an anti-dazzle layer and a low-reflection layer which are sequentially stacked from bottom to top, the low-reflection layer contains low-reflection particles, and the anti-dazzle layer contains organic anti-dazzle particles and inorganic particles. The mass concentration of the organic anti-dazzle particles close to the base material layer is larger than the mass concentration of the organic anti-dazzle particles close to the low-reflection layer, the mass concentration of the inorganic particles close to the base material layer is smaller than the mass concentration of the inorganic particles close to the low-reflection layer, and the refractive index of the low-reflection particles is larger than the refractive index of the inorganic particles and smaller than the refractive index of the organic anti-dazzle particles. Seen from the direction from the low-reflection layer to the base material layer, the refractive indexes of all the layers are gradually increased. According to the anti-dazzle low-reflection optical film and the preparation method and application thereof, the optical film achieves high haze and low reflectivity and can be applied to a strong light environment.

The invention discloses a liquid crystal display device for improving contrast based on movable light guide lattice points and a light guide layer and a control method of the liquid crystal display device. The device comprises a backlight module, a dynamic light guide layer, a liquid crystal display panel and a control system. The dynamic light guide layer is packaged by two transparent substrates to form a sealed cavity, the cavity is filled with transparent base liquid and movable micro units with different refractive indexes, and transparent electrode arrays are arranged on the inner surfaces of the substrates. The control system controls the electrode array to generate a corresponding electric field according to brightness and darkness distribution of an input image signal, drives the micro-units to move in the base liquid and gather to the position below an image brightness field area so as to enhance light output, and meanwhile enables the micro-units to be dispersed below a dark field area so as to reduce light leakage. According to the invention, a static light guide structure is changed into a dynamic programming system, and the real-time pixel-level matching of backlight distribution and display content is realized, so that the contrast ratio is remarkably improved, the halo is inhibited, and the power consumption is reduced. The invention also protects the core component of the dynamic light guide layer and the corresponding control method.

The present invention relates to novel image reconstruction methods and technologies. Embodiments of the invention specifically relate to image reconstruction using a flat lensless camera, or any other imaging device and / or imaging system, and a pre-trained diffusion model with a control network and a learned separable transformation. Additional embodiments of the invention include the addition of textual descriptions and / or text captions of the captured scene to further enhance image reconstruction.

A composite optical filter may include a substrate, a communal optical filter, one or more first optical filters, and one or more second optical filters. The communal optical filter may be formed on a first surface of the substrate. The one or more first optical filters may be formed on one or more first portions of a second surface of the substrate and may be configured to pass light associated with a first wavelength. The one or more second optical filters may be formed on one or more second portions of the second surface of the substrate and may be configured to pass light associated with a second wavelength.

The illumination optical system is disposed at a distal end of a light guide of an endoscope. A first surface that is a surface of the illumination optical system closest to a light guide side includes a plurality of ring-shaped groove portions that are arranged in a concentric circular shape about an optical axis of the illumination optical system. The groove portions have an inclined surface that narrows a groove width from the light guide side toward an irradiation target side. In the first surface, all surfaces that are perpendicular to the optical axis and adjacent to the inclined surfaces of the groove portions are light diffusion surfaces. The light diffusion surfaces include first light diffusion surfaces that are present between the groove portions adjacent to each other. The illumination optical system satisfies a predetermined conditional expression.

The invention relates to the technical field of organic high-molecular compound synthesis, in particular to a modified ABS material diffusion plate and a preparation method thereof.The preparation method comprises the steps that dried ABS resin and acrylonitrile-butadiene-styrene copolymer are mixed to prepare a modified ABS base material; mixing organic silicon microspheres and nano barium sulfate to obtain a modified light diffusion agent; judging that the modified light diffusant is unqualified by comparing the refractive index absolute difference between the modified light diffusant and the modified ABS base material, and performing modification compensation; a titanate coupling agent is determined to be adopted for modification according to the content of inorganic particles of the modified light diffusion agent; mixing the modified light diffusant with an antioxidant system, an ultraviolet protective agent and a processing aid to obtain a functional additive; and mixing with a modified ABS (Acrylonitrile Butadiene Styrene) base material, and extruding by using a twin-screw extruder to Through multi-parameter feedback and accurate compensation control, the problems that the compatibility of the modified light diffusion agent and the base material is poor and the stability of the machining process is insufficient are effectively solved.

This specification discloses a light control film and a display device to which the light control film is applied. The light control film, when applied to a display device, enables precise control of the light output angle, ensuring high transmittance, high brightness, and excellent resolution within the light output angle, and blocking unwanted light that can cause defects such as ghosts or moire. Even when applied to an OLED display, the light control film exhibits the above-mentioned performance without causing defects such as stripes that are noticeable to a viewer. This specification also discloses a display device to which the light control film is applied.

A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of emitters and detectors arranged along a perimeter of the light transmissive panel, and a light directing arrangement arranged adjacent the perimeter. The emitters are arranged to emit a respective beam of emitted light and the light directing arrangement is arranged to direct the light along a light path from the emitters to the touch surface. A diffusive light scattering element is arranged in the light path.

An optical navigation device includes a case, an illumination light source, an illumination lens, an optical detector and a first optical element. The case is movably located above a navigation surface. The illumination light source is disposed inside the case and adapted to emit an illumination beam. The illumination lens is disposed under the illumination light source and has an output surface. The illumination beam passes through the output surface to project onto the navigation surface. The optical detector is disposed inside the case and adapted to detect a reflection beam from the navigation surface. The first optical element is disposed adjacent to the output surface of the illumination lens and extended to an outer edge of the illumination lens, and adapted to eliminate a stray light beam generated by the illumination beam propagated between the illumination lens and the navigation surface from reaching the navigation surface.

The invention relates to a quantum dot foaming diffusion plate and a preparation method, and belongs to the technical field of optical diffusion plates. The quantum dot foaming diffusion plate is formed by uniformly mixing a plastic base material, a composite nucleating system, a composite foaming system and an auxiliary agent and then performing extrusion molding, the composite nucleating system comprises calcium carbonate, modified nano silicon dioxide and talcum powder, and the modified nano silicon dioxide is prepared by modifying a silane coupling agent and the organic acid salt; the auxiliary agent further comprises perovskite quantum dots; the composite foaming system comprises an alkaline component and an auxiliary agent; the diameter of foam holes of the quantum dot foaming diffusion plate ranges from 150 micrometers to 500 micrometers. According to the scheme provided by the invention, through the synergistic effect of the composite nucleating system and the composite foaming system, the uniformly distributed foam structure with the foam diameter in the range of 150-500 microns can be obtained, and the narrow-band emission characteristic of the perovskite quantum dots can be cooperated with the light scattering effect of the foam structure, so that the dual functions of scattering and fluorescence conversion are realized; and the color gamut coverage rate of the diffusion plate is improved.

This specification discloses a light control film and a display device to which the light control film is applied. The light control film, when applied to a display device, enables precise control of the light output angle, ensuring high transmittance, high brightness, and excellent resolution within the light output angle, and blocking unwanted light that can cause defects such as ghosts or moire. Even when applied to an OLED display, the light control film exhibits the above-mentioned performance without causing defects such as stripes that are noticeable to a viewer. This specification also discloses a display device to which the light control film is applied.

A light control film has a structured first major surface including structures separated by one or more grooves and having side surfaces. Each groove has one or more landings joining adjacent structures. Each of the side surfaces makes an angle of greater than about 60 degrees with an adjacent landing. At least 80% of the side surfaces and the landings are coated with a first light transmissive layer including inorganic particles at a volume loading of greater than about 5%. At least 70% of the first light transmissive layer on each of the side surfaces and at most 30% of the first light transmissive layer on the landings is coated with a cover layer. The first light transmissive layer coated on the side surfaces has an average surface roughness Ra2, and the first light transmissive layer coated on the landings has an average surface roughness Ra1, where Ra1 > Ra2.

An optical film for a display according to one embodiment of the present specification may comprise a base film; a pattern layer including a curved portion formed on the base film; and a coating layer disposed on the pattern layer where the coating layer further includes a plurality of particles continuously arranged on at least a portion of the curved portion of the pattern layer and a filler arranged along the curved portion of the pattern layer and filling the space existing among the plurality of particles.

Provided is an optical film requirement that does not use fine particles for light diffusion, is entirely composed of a transparent resin, and has a self-moire pattern that cannot be visually recognized by the naked eye, said optical film requirement having high front brightness without luminance unevenness on the light emission surface of a backlight when mounted on an edge-light backlight. A light-collecting auxiliary film inserted between the light emission surface of a light guide plate and the light incidence surface of a brightness enhancement film (BEF) in an edge-light backlight unit using discrete LED point light sources, the light-collecting auxiliary film being characterized by comprising: an optical waveguide layer comprising a light-transmitting base film, and a light-collecting layer comprising a light-transmitting base film, the light-collecting auxiliary film being interposed between the light emission surface of the light guide plate and the light incidence surface of the brightness enhancement film (BEF), the light-collecting auxiliary film being interposed between the light-emitting surface of the light guide plate and the light incidence surface of the brightness enhancement film (BEF); a light extraction layer that is formed on one surface of the optical waveguide layer and has a plurality of inverted rectangular pyramid-shaped unit recesses; and a light introduction layer formed on the other surface of the optical waveguide layer and having a plurality of unit triangular prisms extending in parallel in one direction, the light extraction layer constituting a light emission surface, and prism surfaces of the plurality of unit triangular prisms constituting the light introduction layer constituting a light incidence surface. The direction of the ridge lines of the plurality of unit recesses and the direction of the ridge lines of the plurality of unit triangular prisms intersect at an angle of 42 DEG to 48 DEG, and the light extraction layer, the optical waveguide layer, and the light introduction layer do not contain fine particles for light diffusion. The self-moire pattern generated by the plurality of unit recesses and the plurality of unit triangular prism lenses cannot be visually recognized by naked eyes.

The invention provides an anti-dazzle liquid and a preparation method thereof, and an anti-dazzle film and a preparation method thereof, and belongs to the technical field of optical films. The anti-dazzle liquid comprises micron inorganic particles of which the surfaces are modified with polar groups, UV curing resin with hydroxyl, a high-surface-tension active monomer and a polar solvent; wherein the surface tension of the high-surface-tension active monomer is greater than or equal to 35 dyne / cm. The anti-dazzle liquid is matched for use, the micron inorganic particles can be exposed and protrude out of the outer surface of the anti-dazzle layer after the anti-dazzle liquid is cured, and the high-surface-tension active monomer with the dyne value within the range can be matched with the polar groups for modifying the surfaces of the micron inorganic particles to improve the dyne value of the anti-dazzle layer formed by the anti-dazzle liquid; besides, the UV curing resin with hydroxyl groups can form bonding with polar groups modified on the surfaces of the micron inorganic particles through the hydroxyl groups, and the wear resistance of an anti-dazzle layer formed by the anti-dazzle liquid is improved, so that the anti-dazzle layer formed by the anti-dazzle liquid has high dyne value and friction resistance while having anti-dazzle performance.

There are provided a layered body and a display device including the same, the layered body including a substrate layer and a resin layer disposed on at least one surface of the substrate layer, in which the resin layer contains a light scattering agent (A), and, when the contact angle of the substrate layer with respect to diiodomethane is indicated by θs (°) and the contact angle of the resin layer with respect to diiodomethane is indicated by θr (°), the following formula: |θs−θr|≤21 is satisfied.

An electronic device includes a substrate, a light-emitting unit, a first diffusion element, a first prism film, a second prism film and a protecting layer. The light-emitting unit is disposed on the substrate. The first diffusion element is disposed on the light-emitting unit. The first prism film is disposed on the first diffusion element. The second prism film is disposed between the first prism film and the first diffusion element. The protecting layer is disposed on the substrate and covers an upper surface of the light-emitting unit. The protecting layer contacts the first diffusion element.

An anti-dazzle anti-interference display touch screen and terminal equipment, comprising a display screen, a sensing surface of the display screen is bonded with a touch module, and a part of the touch module is covered with an electromagnetic shielding layer to ensure the integrity of a display signal of the display touch screen and prevent external interference; the touch module comprises a functional piece and a cover plate which are bonded with each other, at least one side of the cover plate is provided with an anti-dazzle structure, and a rough structure of the anti-dazzle structure can convert direct light into diffuse reflection, so that dazzle of the display touch screen is reduced, visibility is improved, and durability is enhanced.

The application discloses a light diffusion plate foaming light-weight structure and a preparation method thereof. The structure comprises upper surface layer, first foaming layer, second foaming layer and lower surface layer connected in sequence. The thickness of the first foaming layer is less than that of the second foaming layer, and the average cell diameter of the first foaming layer is less than that of the second foaming layer. The application adopts the combination of the first foaming layer with small cell diameter and thin thickness and the second foaming layer with large cell diameter and thick thickness, improves the structure of the foaming light diffusion plate, and makes the density of the foaming light diffusion plate as low as 0.3 g / cm 3 , which is 50% lower than 0.85 g / cm 3 of the prior art, and the cost is significantly reduced, so that the application has obvious advantages in market competition. The average density, light transmittance and haze of the light diffusion plate can be regulated by adjusting the thickness or the average cell diameter of the first foaming layer and the second foaming layer.

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.

To provide illumination with reduced speckle, which is the granular distribution of light, a diffuser matched to the light source array is provided. [Solution] The diffuser is a system in which each microlens has a random distribution of the microlenses, each containing a scattering unit, and multiple light sources are aligned on the microlenses of the diffuser, and the multiple light sources are coherent light sources such as vertical cavity surface-emitting lasers (VCSELs).

A display system including a backlight including a housing receiving light emitting elements to generate and project light from the backlight and reflective portions disposed on the housing is described. A first display unit is disposed proximate the backlight and may include an upper substrate, a liquid crystal layer, and a lower substrate disposed opposite the upper substrate. A reflective polarizer may cooperate with one or more of the upper substrate and the lower substrate of the first display unit. A second display unit is disposed proximate the first display unit. The second display unit may include an upper substrate, a thin-film transistor (TFT) display layer cooperating with the upper substrate and a lower substrate disposed opposite the upper substrate that cooperates with the TFT display layer. A linear polarizer may cooperate with one or more of the upper substrate and the lower substrate of the second display unit.

The invention belongs to the technical field of polymer light diffusion plates, and relates to a micro-nano composite structure polymer light diffusion plate and a preparation method and application thereof.The preparation method comprises the following steps that S1, an aluminum substrate is sequentially subjected to high-strength oxidation, denudation, mild oxidation and chambering treatment; constructing an aluminum oxide substrate with a micron pit and ordered nano gradient hole composite structure; s2, nickel is deposited on the aluminum oxide substrate through electrochemical deposition; further modifying fluorosilane to obtain a flexible reusable nickel template; s3, coining a flexible reusable nickel template on the polymer plate, or spin-coating the pre-polymerized precursor on the surface of the polymer plate and then coining; and after curing, stripping the flexible reusable nickel template to obtain the polymer light diffusion plate with the micro-nano composite structure. The micro-nano composite structure polymer light diffusion plate prepared by the invention has relatively high total light transmittance and diffusion light transmittance, has efficient radiation cooling and super-hydrophobic antifouling capabilities, and is used in LED illumination display and / or heat dissipation.

This relates to an optical laminate that achieves both fingerprint resistance and anti-glare properties, and an image display device using the same. [Solution] An optical laminate comprising a transparent substrate, a first functional layer having an inorganic fine particle content of 5 to 80% by mass, and a second functional layer having a refractive index lower than that of the first functional layer, laminated in this order, and having an uneven surface, characterized in that it satisfies the following conditions (1) and (2). 6,000 ≤ A ≤ 40,000 (1) 50 ≤ B ≤ 800 (2) (Here, when the spatial frequency f is calculated from the three-dimensional data obtained by measuring the aforementioned uneven shape using the Fast Fourier Transform, A is the average value of the power spectrum intensity in the range of 50 cycles / mm ≤ f ≤ 100 cycles / mm, and B is the average value of the power spectrum intensity in the range of 200 cycles / mm ≤ f ≤ 250 cycles / mm.)

An optical device, including a first selective light modulator layer comprising infrared transparent particles; and at least one infrared reflective material chosen from an infrared reflective layer and a plurality of infrared reflective particles is disclosed. A method of making the optical device is also disclosed.

This infrared radiation detector comprises: – a cryostat equipped with a cold finger, suitable for heat exchange with a cold source, and a window transparent to the infrared radiation to be detected; – a cold plate, mechanically fixed and in heat exchange with the cold finger; – a detection block comprising at least one detection matrix sensitive to the range of infrared wavelengths to be detected, and in heat exchange directly or indirectly with the cold plate; – a cold screen mechanically fixed and in heat exchange with the cold plate and suitable for limiting parasitic radiation, the cold screen being equipped with at least one diaphragm or baffle (9), oriented radially with respect to the general orientation of the detector, and equipped with an opening suitable for allowing the transit of the optical path resulting from the incident radiation.The free edge (13) of said at least one diaphragm or baffle (9) is structured so as to define non-linear patterns (14). Figure for the abbreviation: Fig 6.

The application discloses a perovskite quantum dot enhanced diffusion plate and a preparation method thereof, and relates to the technical field of optical elements. The preparation method comprises the following steps: heating and smelting inorganic glass raw materials and quantum dot precursors, quenching and cooling, tempering and crystallizing, obtaining quantum dot glass, grinding and granulating the quantum dot glass to obtain quantum dot glass powder, mixing modified polymethyl methacrylate, the quantum dot glass powder and diffusion particles, and then adding the mixture into an injection molding machine to perform extrusion, and finally obtaining the perovskite quantum dot enhanced diffusion plate. The methyl methacrylate is modified, the problem that the charge encounters great obstruction when being transmitted between the quantum dot and the methyl methacrylate is solved, and the luminous efficiency of the diffusion plate is improved.

To provide an anti-glare film that offers excellent anti-glare properties and can suppress reflected and scattered light. [Solution] An anti-glare film having an anti-glare layer, wherein the anti-glare film has an uneven surface, and with respect to the amplitude spectrum of the elevation of the uneven surface, the spatial frequencies are each 0.005 μm -1 , 0.010 μm -1 , 0.015μm -1 The sum of the corresponding amplitudes is AM1, and the spatial frequency is 0.300 μm. -1 When the amplitude in is defined as AM2, AM1 is 0.070 to 0.400 μm, and AM2

An optical film includes a plurality of optical elements. In a case where a first reference line parallel to a film surface is extended in a horizontal direction from a first optical element, a second optical element adjacent to the first optical element is placed at a predetermined spacing in a direction forming a first angle with respect to the first reference line. A third optical element adjacent to the first optical element is placed at a predetermined spacing in a direction forming a second angle with respect to a second reference line orthogonal to the first reference line and parallel to the film surface. Another optical element is also placed at a predetermined spacing from an adjacent optical element in the direction forming the first angle, and is placed at a predetermined spacing from an adjacent optical element in the direction forming the second angle.