1553results about "Diffusing elements" patented technology

The invention discloses a composite optical film with a polarization function, a preparation method and application thereof. The composite optical film comprises a transparent substrate layer, and a buffer layer, an oriented calcite crystal layer and an anti-reflection layer which are laminated on one side of the transparent substrate layer. Wherein the oriented calcite crystal layer is obtained by coating a superparamagnetic modified calcite crystal composite material suspension on the surface of the buffer layer, inducing optical axis oriented arrangement through a magnetic field and performing UV curing; the buffer layer is obtained by co-extruding a cycloolefin polymer and a polyurethane acrylate mixture, and a thermal expansion coefficient transition system is formed; the anti-reflection layer is composed of nano-porous titanium dioxide with the refractive index changing from 1.8 to 2.3 in a gradient mode, and a refractive index gradient structure is formed. According to the composite optical film, the polarization efficiency and the light transmittance of the composite optical film are improved and the industrial stability is improved through the design of the polarization functional layer in which the calcite nanocrystals are directionally arranged under the induction of a magnetic field and in combination with the gradient refractive index scattering layer.

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 provides electronic equipment. The electronic device includes a display panel; the anti-glare optical layer is arranged on the light emitting side of the display panel, the anti-glare optical layer comprises a substrate and a microstructure layer, the microstructure layer is arranged on the surface of the substrate in the thickness direction of the substrate, and the microstructure layer comprises a plurality of microstructure units; wherein the size of a single microstructure unit is in direct proportion to the pixel density of the display panel. The electronic device can inhibit the flash point phenomenon and improve the visual definition of the displayed image while achieving the anti-glare performance.

Provided is a glass laminate including: a glass substrate having a first main surface and a second main surface; a functional layer provided on a first main surface side of the glass substrate and including any one or more selected from an antiglare layer, an antireflection layer, and an anti-finger print layer; and a colored layer provided on a second main surface side of the glass substrate and having a hole-formed region in which a plurality of holes are provided, in which the hole-formed region has a visible light transmittance of 5% or more.

The invention relates to the technical field of optical materials, and discloses organic silicon micropowder as well as a preparation method and application thereof. The organic silicon micro powder is composed of a plurality of polysiloxane microspheres, the surface relative smoothness of each polysiloxane microsphere is R, 1.02 < = R < = 1.30, R = Rq / Ra, Rq is the root mean square surface roughness of the polysiloxane microspheres, and Ra is the average surface roughness of the polysiloxane microspheres; the relative size uniformity of the organic silicon micro-powder is RSU, RSU = 1-phi / d2 > = 0.992, phi is the variance of the diameter of the organic silicon micro-powder, and d is the average diameter of the organic silicon micro-powder. The organic silicon micropowder has the advantages of higher light utilization rate, higher light transmittance and good light scattering and diffusion uniformity; after the material is applied to a light diffusion material, the light control fineness is high, the light transmittance and diffusivity are good, and the light transmittance and brightness are higher; and the flatness of the coating formed when the coating is used as a raw material for forming the coating is good.

An optical stack including an optical diffuser and a first reflective polarizer disposed on the optical diffuser is described. For substantially normally incident light and for nonoverlapping first and second wavelength ranges: the optical diffuser has a first scattering rate R1 for at least one wavelength in the first wavelength range, and a second scattering rate R2 for at least one wavelength in the second wavelength range, such that R1 / R2 is greater than or equal to 2. The first reflective polarizer may transmit at least 40% of light for a first polarization state for each wavelength in the first wavelength range, may reflect at least 70% of light for an orthogonal 10 second polarization state for each wavelength in the first wavelength range, and transmit at least 40% of light for each of the first and second polarization states and for each wavelength in the second wavelength range.

The invention relates to the field of optical thin films, in particular to a preparation method of an optical diffusion film. A preparation method of an optical diffusion film comprises the following steps: uniformly mixing a curing agent and polydimethylsiloxane, curing, and then carrying out oxygen plasma treatment and room temperature aging treatment to obtain a polydimethylsiloxane flat plate; dissolving PET particles and PMMA particles in a solvent to obtain a polymer solution; and placing a polydimethylsiloxane flat plate above the polymer solution, and standing to obtain the optical diffusion film. According to the application, PMMA is used as a high glass transition temperature component to be blended with PET, so that the overall glass transition temperature of a blending system is improved, and the practicability of the optical diffusion film in a high-temperature environment is improved; strong scattering is provided through the refractive index difference between air holes and a polymer phase, and a refractive index gradient is formed by using the refractive index difference between PET and PMMA, so that a secondary scattering interface is formed, and light absorption is reduced and high transmittance is maintained while high haze is ensured.

The present disclosure provides a stacked body for a display device comprising a substrate layer, a first layer, and a second layer, in this order; wherein a luminous reflectance of regular reflection light, when light is entered to a second layer side surface of the stacked body for a display device with incident angle of 60°, is 10.0% or less; and an absolute value of a difference, between yellowness YI1 of transmitted light in 60° direction with respect to a normal line to the second layer side surface of the stacked body for a display device and yellowness YI2 of transmitted light in 15° direction with respect to a normal line to the second layer side surface of the stacked body for a display device, is 3.0 or less.

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 invention relates to the technical field of optical thin films, in particular to a high-transmittance low-haze upper diffusion film and a preparation method thereof. A high-light-transmittance low-haze upper diffusion film comprises a transparent base film and a nano coating coated on the surface of the transparent base film, and the nano coating comprises the following preparation raw materials: 30-40 parts of polyurethane modified acrylate, 20-30 parts of a high refractive index monomer, 10-15 parts of a functional monomer, 1.5-2 parts of nanoparticles and 2-4 parts of a photoinitiator. Wherein the nano particles are modified AlO / SiO nano composite particles. Through nano particle modification, functional monomer compounding and resin matrix optimization, the contradiction between light transmittance and mechanical performance of a traditional light diffusion film is broken through, comprehensive upgrading of optical performance (light transmittance / haze), mechanical strength (hardness / flexibility) and weather resistance (high temperature / aging resistance) is achieved, and the light diffusion film is suitable for high-end scenes such as ultra-thin OLED screens and vehicle-mounted display.

The invention provides a polaroid, an optical functional layer coating and a display device. The polaroid comprises an optical function layer, and the optical function layer comprises thermocuring resin, first ultraviolet curing resin, second ultraviolet curing resin and needle-shaped particles. The molecular weight of the thermocuring resin is 500,000-1,500,000, the number of acrylic functional groups of the first ultraviolet curing resin is 5-50, the number of acrylic functional groups of the second ultraviolet curing resin is 2-5, and the ratio of the length of the needle-shaped particles to the diameter of the cross section is 5-60. The optical functional layer coating comprises the components, a photoinitiator, a dispersing agent and a solvent, and the mass of the needle-shaped particles accounts for 6-18% of the mass of the optical functional layer coating. The display device comprises a display panel and a polaroid. Through specific combination of the three kinds of resin and the needle-shaped particles, the technical problem that the viewing angle increasing capacity of the polaroid is limited is solved.

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.

Provided are: an optical laminate which uses a biaxially stretched polyethylene terephthalate film as a base material, has bending resistance, and in which iris irregularities are suppressed; and an image display device which uses the optical laminate. This optical laminate is used in an image display device, and is provided with: a light-transmitting base material which is formed from a biaxially stretched polyethylene terephthalate film and which has in-plane birefringence; and an optical functional layer provided on one surface of the light-transmitting substrate, the arithmetic average roughness Ra of the surface of the optical functional layer being 0.04 [mu] m or more, the average inclination angle [theta] a of unevenness present on the surface of the optical functional layer being 0.30 DEG or more, and the in-plane retardation Re of the light-transmitting substrate defined by formula (1): Re = (nx-ny) * d being 2,000 nm to 7500 nm (inclusive). Here, nx is the refractive index in the slow axis direction, ny is the refractive index in the in-phase axis direction, and d is the thickness of the translucent substrate.

An electronic device that includes a textured cover is disclosed. The textured cover may be positioned over a display assembly of the electronic device and provide an anti-glare effect while maintaining acceptable levels of readability of graphic output from the display assembly. The textured cover may also be suitable for use with an electronic stylus that provides input to the electronic device.

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.

An image projector includes a spatial light modulator (SLM) with a two dimensional array of pixel elements controllable to modulate a property of light transmitted or reflected by the pixel elements. An illumination arrangement delivers illumination to the SLM. A collimating arrangement collimates illumination from the SLM to generate a collimated image directed to an exit stop. The illumination arrangement is configured to sequentially illuminate regions of the SLM, each corresponding to a multiple pixel elements. A controller synchronously controls the pixel elements and the illumination arrangement so as to project a collimated image with pixel intensities corresponding to a digital image.

The invention discloses a high-stability perovskite quantum dot diffusion plate and a preparation method thereof, relates to the technical field of high-definition optical display, and belongs to the patent classification number G02B5 / 02. The preparation method comprises the following steps: mixing and melting an inorganic glass raw material and CeO2, quenching, grinding and annealing to obtain pretreated glass powder; the preparation method comprises the following steps: preparing inorganic-organic hybrid layer coated perovskite quantum dots, performing ionic liquid treatment to form double electric layers to protect the quantum dots, and then coating a metal organic framework; mixing nano titanium dioxide with zirconium oxide to obtain composite diffusion particles; the pretreated glass powder, the metal organic framework coated quantum dots and the composite diffusion particles are mixed into a premix, polycarbonate particles are added, then a silane coupling agent and an antioxidant are added, and the diffusion plate is obtained through melt blending and calendaring molding. According to the method, the stability of the quantum dots is improved through a triple protection mechanism, and the prepared diffusion plate is excellent in optical performance.

An infrared-laser source device (10) provided with an external housing (11), said external housing (11) comprising: a light output interface (12) arranged in a front part (F) of the external housing (11), at least one infrared-laser source (14) arranged in a rear part (R) of the external housing (11) and configured to emit an IR-laser beam (B) providing a first emitting area (C1) at the light output interface (12), and a first light distributing element (15) configured to diverge light at the light output interface (12), wherein said infrared-laser source device further comprises a second light distributing element (16) separated from the first light distributing element (15) and providing, at the light output interface (12), a second emitting area (C2) larger than the first emitting area (C1).

A system and method for producing an integrated optical assembly, which can include providing a functionalized scaffold material; and forming an optical assembly including at least two optical components within the scaffold material, the forming of the optical assembly including: lithographically patterning a first optical component within the scaffold material; and lithographically patterning a second optical component within the scaffold material aligned with the first optical component.

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.

A light diffusion plate suitable for a display device comprises a first transparent layer and a diffusion layer, the diffusion layer comprises a plurality of first diffusion particles dispersed therein, the diffusion layer is located above the first transparent layer, the first transparent layer is arranged between a light-emitting element of the display device and the diffusion layer, and the refractive index of the first transparent layer is larger than that of the diffusion layer. The invention also provides a display device and a backlight module of a head-up display device.

To provide an optical laminate capable of suppressing glare while maintaining a good anti-glare property.SOLUTION: An optical laminate 1A is provided, comprising an anti-glare layer 2, anti-glare layer-forming base material layer 3, polarizing film 4, protective film 5, and retardation layer 6 arranged in the described order. The protective film 5, the retardation layer 6, and a member therebetween together have a measured haze of 0.3% or greater, and the anti-flare layer 2 and the anti-glare layer-forming base material layer 3 together have a measured haze less than 5%.SELECTED DRAWING: Figure 1

The invention discloses an optical film, a polaroid and a display device, the optical film comprises a base material and particles dispersed in the base material, under the overlooking view angle of the optical film, the number of the particles dispersed in every ten thousand square micrometers is smaller than or equal to 400, the ratio of the number of the particles dispersed in every ten thousand square micrometers to the haze of the optical film is larger than zero and smaller than or equal to 100, and the number of the particles dispersed in every ten thousand square micrometers is smaller than or equal to 100. Through the design, the difference between the in-plane retardation value and the retardation value in the thickness direction of the optical film can be reduced, the rainbow pattern phenomenon is improved, the optical film has excellent mechanical performance, meanwhile, the chromaticity visual angle of the optical film when the optical film is applied to the display device can be improved, and high transmittance is maintained.

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.

The present application relates to the technical field of optical functional film, disclose a kind of high haze calcite BOPET composite diffusion film and its preparation method and application, by adopting gradient micropore-dense layer composite structure design, and optimizing each layer function composition, on the one hand in surface dense layer, utilize low filling nano calcite to build high dense structure, effectively reduce surface light reflection, improve mechanical strength, while avoiding light transmittance loss;On the other hand in bottom microporous layer, introduce double-particle-size calcite particle nanoparticles and microparticles, build multiscale scattering network, realize the efficient light diffusion of wide spectral range 380-780 nm, significantly reduce interface scattering loss, substantially improve the light transmittance and haze balance of optical film;Meanwhile, through the integration of co-extrusion-biaxial stretching process, optimize inorganic / organic interface combination, effectively solve the problem of filler agglomeration, while reducing the preparation cost.

The present disclosure generally relates to lighting modules, and more specifically, to a configurable linear lighting module for use within a suspended ceiling grid assembly. The configurable linear lighting module is easy to install and comprises a novel linear support element with internal and external support features which is provided with integrated or removable optical assemblies to deliver lighting distributions tailored to optimally illuminate the surface ceiling panels as well as floors, walls and work surfaces below. When installed within a configured ceiling grid assembly the configurable linear lighting module provides novel support features for ceiling panels to be held in-line, above, below or tilted relative to the existing ceiling grid plane. A wide range of useful lighting distributions are achieved by configuring the optical elements and LED light sources supported and aligned by the linear support element. By selectively applying electrical power to individual light source channels it is further possible to electrically control lighting distributions. As such the configurable linear lighting module provides both aesthetically pleasing features and useful lighting distributions. Furthermore, illustrated embodiments of ceiling grid assemblies comprising one or more of the configurable linear lighting modules demonstrate how both appearance and lighting distributions can be controlled to meet aesthetic and lighting design requirements.

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.