533 results about "Optical membrane" patented technology

An optical membrane device and method for making such a device are described. This membrane is notable in that it comprises an optically curved surface. In some embodiments, this curved optical surface is optically concave and coated, for example, with a highly reflecting (HR) coating to create a curved mirror. In other embodiments, the optical surface is optically convex and coated with, preferably, an antireflective (AR) coating to function as a refractive or diffractive lens.

The invention provides an optical coating composition, a fluorescent optical membrane and a preparation method thereof. The optical coating composition comprises the following components in parts by weight: 0.01-3 parts of red fluorescence quantum dot material, 1-40 parts of green fluorescence quantum dot material, 0-90 parts of solvent, 0-20 parts of photodiffusion agent, 5-60 parts of film-forming material and 0-10 parts of film-forming assistant. The weight ratio of the red fluorescence quantum dot material to the green fluorescence quantum dot material is (1:100):(1:10). The optical coating composition provided by the invention can be applied on a transparent substrate or existing optical membrane surface to form a fluorescent optical membrane. The fluorescent optical membrane formed by the optical coating composition can achieve the effect of enhancing the displayable color range of the emergent light source.

A variable focus lens apparatus includes at least one rigid optical disc, at least one flexible optical membrane and at least one layer of a transparent fluid that is in communication with a fluid channel and a reservoir. When incorporated in a spectacle lens, the lens system enables wearers to adjust the power of each lens individually, so as to achieve the preferred binocular visual performance, consistent with maximum stereopsis and binocular fusion at any desired object plane.

The invention relates to a light guide membrane layer for a key device. The light guide membrane layer comprises an optical membrane layer and a rubber layer arranged on one side of the optical membrane layer and formed with the optical membrane layer to a whole, wherein at least one accommodating region is formed on the rubber layer. In addition, the invention also provides a key device which comprises a key layer, a metal dome switch layer and a light guide membrane layer arranged between the key layer and the metal dome switch layer, the light guide membrane layer comprises the optical membrane layer and the rubber formed with the optical membrane layer to a whole, and at least one accommodating region is formed on the rubber layer. According to the invention, the optical membrane layer and the rubber layer are formed into a whole, so that the thickness of the whole key structure is lowered; and meanwhile the accommodating region is formed on the rubber layer, a larger accommodating space is gained for elements in the accommodating region, mutual influences of electrical signals between the key and the elements in the accommodating region is avoided, and the production cost can be lowered.

The invention discloses a backlight module utilizing ambient light and a liquid crystal display device comprising the same. The liquid crystal display device comprises a metal frame (10), a liquid crystal panel (20) and a backlight module (30), wherein the backlight module (30) comprises a plastic bracket (31), a back plate (32), a reflection device (33), a light source (34), a diffusion plate (35) and an optical membrane group (36); the reflection device (33) is provided with a light diffusion device (37); the light diffusion device (37) passes through the reflection device (33) to be connected with one end of a light transmission device (38); and the other end of the light transmission device (38) is connected with a light source acquisition device (39) capable of collecting ambient light. According to the invention, the luminance of the display panel can be regulated in due time according to the intensity of the ambient light, electricity energy consumption is lowered, and the liquid crystal display device has the characteristics of simple structure, low cost, good use effect and low energy consumption, is convenient to assemble and is suitable to be popularized and used.

The invention discloses a detachable fixing component, which is suitable for fixing one side of at least one optical membrane of a backlight module on one side of a rubber frame of the backlight module. The fixing component comprises at least one positioning convex column, a limit part and a fixed stop block. The positioning convex column is suitable for being fixedly arranged at the upper lateralsurface of the rubber frame. The limit part is suitable for being arranged on the outer lateral surface of the rubber frame and is provided with a limit groove, wherein the outer lateral surface is connected with the upper lateral surface. The fixed stop block is provided with a positioning hole sleeved with the positioning convex column and a blocking hook blocked with the limit groove. The positioning hole of the fixed stop block is sleeved with the positioning convex column and the blocking hook is blocked with the limit groove so that the optical membrane is clamped by the fixed stop block and the rubber frame, at the moment, the positioning convex column is matched with the limit part to make the fixed stop block have translation freedom degree relative to the positioning convex column, while the blocking hook and the limit groove limit the translation freedom degree.

The invention discloses a backlight module and a liquid crystal display applying the same. The backlight module at least comprises a backboard, a light source arranged on the backboard, a glue frame which is arranged on the periphery of the backboard and positioned outside the light source, and at least one optical diaphragm arranged on the glue frame. The glue frame at least comprises a main body and at least one supporting part spliced with the main body, wherein the main body and the supporting part form a supporting surface and the supporting part allows light to be transmitted. The optical diaphragm is supported on the supporting surface. According to the invention, under the condition of not making the backlight module generate dark bands, the supporting surface of the optical diaphragm can be effectively enlarged to further stabilize and support the optical diaphragm.

The invention provides a membrane stripping apparatus, and belongs to the technical field of material membrane stripping. The membrane stripping apparatus can solve problems comprising easy generation of residual adhesive pollution, high cost and restricted application range of present membrane stripping technologies. The membrane stripping apparatus comprises at least one viscous membrane stripping roller, a feeding mechanism used for sending a material for membrane stripping to the feeding side of the membrane stripping roller, and a driving mechanism used for driving the membrane stripping apparatus to rotate. The membrane stripping apparatus is used for stripping one-sided or two-sided membranes comprising protection membranes and release membranes on the surfaces of materials having any component, size, thickness and shape, can be used for optical membranes, printing plates, display panels and the like, and is suitable for precise materials comprising ultrathin materials, high-precision printing plates and the like.

An optical membrane forming apparatus comprises a vacuum chamber (7), a lens holder (2) placed in the chamber (7) for holding one or more lenses (3) in such a manner that each lens (3) is rotational about its axis, and that the lens holder (2) itself is rotational about its own axis, and a plurality of vaporization sources (10a-10c) placed in the chamber (7). Each of the vaporization sources (10a-10c) produces vaporized particles for forming a layer of the membrane on the surface of the lens (3). The vaporization rate of the plurality of vaporization sources are independently controlled. A diaphragm plate (4) is placed between the vaporization sources (10a-10c) and the lenses (3) in order to control the direction of diffusion of the vaporized particles. Each of the sources (10a-10c) has a sample container which is partitioned into a plurality of rooms to store different samples.

A transparent protective film for polarizing plate being provided via an adhesive layer on at least one surface of a polarizer, wherein a ratio of constituent elements (oxygen ratio / carbon ratio) on the polarizer-adhering surface of the transparent protective film for polarizing plate, which is determined by X-ray photoelectron spectrometry, is larger than 0.75 has facilitate adhesion surface and no deformation without problems attributable to saponification.

The invention discloses a preparation method of a core-shell structural perovskite quantum dot, which includes steps of configuring CsX and PbX2 precursor solutions respectively, mixing CsX precursor solution with PbX2 precursor solution, and generating a structure of coating CsPbX3 nano-crystal by Cs4PbX6 micro-crystal; separating and washing the compounded sediment; then dispersing the sediment in the solvent and introducing a ligand; performing membrane treatment on the solution after introducing the ligand to be a perovskite nanometer membrane; or separating again and vacuum-drying to be perovskite nanometer crystal powder. The core-shell structural perovskite nanometer crystal material can be dispersed in the organic solvent and prepared to be a quantum dot optical membrane; the quantum dot optical membrane is applied to a lighting diode liquid crystal display device and has stability to water, oxygen, heat, light and others.

The embodiment of the invention discloses a backlight module and a liquid crystal display device, which relate to the field of the liquid crystal display, and can effectively reduce the overall weight of the liquid crystal display device. The backlight module comprises a rear panel and a light source which is arranged on one side of the rear panel, and the backlight module also comprises a reflection sheet which is arranged on the rear panel and an optical membrane material which is arranged above the reflection sheet, an optical cavity is formed between the reflection sheet and the optical membrane material, the reflection sheet is provided with a plurality of micro structure projections, and the distribution density of the micro structure projections on the reflection sheet is gradually reduced along the direction of the light source.

The invention relates to a light guide plate which comprises a first accommodating space, a second accommodating space and a third accommodating space, wherein the first accommodating space is used for fixing a liquid crystal panel; the second accommodating space is used for configuring an optical membrane set; and the third accommodating space is used for configuring a light source unit. Due to the functions of the first accommodating space, the second accommodating space and the third accommodating space of the light guide plate, the accommodating functions of a back shell and a rubber frame of a known backlight module can be replaced, and the liquid crystal panel, the optical membrane set and the light source unit are directly accommodated on the light guide plate, thus the back shell and the rubber frame can be cancelled so as to ensure that the thickness of the backlight module can become thinner. Meanwhile, the design of a clamping hook can be cancelled, thus the backlight module can be simpler to assemble and has lower cost, and the automation of the backlight module can also be introduced.

A laminated optical film contributing production of thin-shaped liquid crystal panels and liquid crystal displays and manufactured by a simplified production process and a laminated optical film manufacturing method are provided. The laminated optical film is used for liquid crystal displays and placed on the viewed side of the liquid crystal cells. The film is composed of a polarizer and a phase difference layer which is disposed on one side of the polarizer, whose refractive index ellipsoid satisfies a relation nx>ny=nz, and whose parallel phase difference value Re[590] ranges from 90 to 190 nm. The angle between the absorption axis of the polarizer and the slow axis of the phase difference layer ranges from 5 to 85 DEG . The phase difference layer is made of a liquid crystal material and disposed nearer to the viewed side than the polarizer.

The invention provides a backlight module. The backlight module comprises a back plate, a reflecting sheet arranged in the back plate, a light guide plate arranged on the reflecting sheet, an optical membrane assembly arranged on the light guide plate, a backlight source arranged in the back plate and facing the light guide plate, a frame arranged on the back plate, and an elastic retaining wall arranged above the light incident end of the backlight source and the light guide plate and fixed on the frame in a plugging, attaching or clamping manner, wherein the elastic retaining wall includes a bottom surface and a side surface vertical to the bottom surface; and the bottom surface and the side surface keep close contact with the upper surface of the light guide plate and the backlight source. The elastic retaining wall made of white rubber and having elasticity is fixed on the frame in the plugging, attaching or clamping manner and keeps close contact with the light guide plate and the upper surface of an LED (light emitting diode) lamp, so that the elastic retaining wall can reflect light back to the light guide plate to well prevent the light from being emitted from a gap on the light incident side, thereby solving the problem of incident-side light leakage of the backlight module and improving the light efficiency of the backlight module.

An optical membrane device and method for making such a device are described. This membrane is notable in that it comprises an optically curved surface. In some embodiments, this curved optical surface is optically concave and coated, for example, with a highly reflecting (HR) coating to create a curved mirror. In other embodiments, the optical surface is optically convex and coated with, preferably, an antireflective (AR) coating to function as a refractive or diffractive lens.

The invention discloses a display device and relates to the technical field of display devices. The invention is invented to solve the problem that it is difficult to further reduce the width of the frame on the basis of the narrow frame backlight of the display device in the prior art. The display device of the present invention includes: an optical film layer; a plastic frame, the plastic frame is arranged around the edge of the optical film layer; a double-sided light-shielding tape, one side of the double-sided light-shielding tape is bonded to the A circle of the edge of the upper surface of the optical film layer and a circle of the upper surface of the plastic frame, the part of the double-sided light-shielding tape that exceeds the outer edge of the plastic frame is bent to form a bent part, and the bent part is adhered to the plastic frame. On the outer wall of the plastic frame, and there is no adhesive layer on the surface of the bent portion away from the plastic frame; for the display panel, the edge of the lower surface of the display panel is bonded to the other side of the double-sided light-shielding tape side. The display device of the present invention can be used in mobile phones.

An optic film has a surface on which a plurality of rib-like micro light guides is formed. Each light guide includes a plurality of ridges, which are of different height and shows variation of height. Either a high ridge or a low ridge of the light guide is made a continuous left-and-right wavy configuration and / or a continuous up-and-down height-variation configuration. Thus, light transmitting through the optic film and converged by the light guides leaves the optic film in a form that is not very regular so as to facilitate subsequent use of the light in for example a liquid crystal panel.

The invention provides an optical membrane. The membrane comprises a transmission basal plate, a plurality of strip bumps and a plurality of bump structures, wherein the transmission basal plate is provided with a first surface and a second surface which are oppositely arranged; the strip bumps are arranged on the first surface, each strip bump is provided with two strip lateral faces; the bump structures are arranged on ridges of the strip bumps, each bump structure is provided with a raised end and two wing parts; the raised end is protruded from the ridge of corresponding strip bump; the two wing parts are respectively positioned on the two strip lateral faces of the corresponding strip bump, each wing part extends from the raised end to the position between the ridge and a valley line; the length of the bump structure in the direction parallel to the extending direction of the ridge is L, and the width of the bump structure in the direction vertical to the ridge is W, and L / W is more than or equal to 1.2. By the optical membrane, at least one of veins, local adhesion, scrape and abrasion of the optical membrane with other optical elements can be effectively improved.

The invention relates to the field of display technologies, and discloses a backlight module and a liquid crystal display device. The backlight module comprises a light guide plate, an optical membrane material located on the light-emitting side of the light guide plate, and an optical orientation membrane located on the light-emitting side of the optical membrane material. The optical orientation membrane comprises an orientation layer, the orientation layer is provided with a plurality of first light blocking walls arranged in parallel, light-transmitting areas are arranged between any two adjacent first light blocking walls, and the side, facing towards the corresponding light-transmitting area, of each first light blocking wall is the light blocking face. The incidence angle of light emitted from the backlight module through the optical orientation membrane on the light-entering face of a lower polaroid is small, then, the degree of polarization of refracted ray emitted from the light-emitting face of the liquid crystal display device is reduced, and the possibility of seeing image information when observers watch the liquid crystal display device in a naked-eye mode on two sides of the liquid crystal display device in the arrangement direction of the first light blocking walls is reduced. Thus, according to the liquid crystal display device provided with the backlight module, peep prevention display can be well achieved.

The invention provides a support device of a liquid crystal display module and comprises a backboard which is provided with a bottom plate and a plurality of support plates; the bottom plate is provided with a reflection plate, a light guide plate and an optical membrane module; the support device also comprises a rubber frame; a plurality of platforms extend out from the rubber frame and are arranged on the upward side of the optical membrane module, moreover, certain space is remained between the platforms and the optical membrane module; at least one platform is provided with a convex rib and the optical membrane module is provided with a through hole corresponding to the convex rib, moreover, each convex rib gets through the corresponding through hole on the optical membrane module and plays a role of support between the platform and the light guide plate. As the support point of the convex rib providing support for the platform is close to the free terminal of the platform, the convex rib can ensure the distance between the platform and the optical membrane module and prevent the optical membrane module from waving deformation under high temperature state.

The invention provides a backlight module and a liquid crystal display device. The backlight module comprises a light guide plate, a light bar and an optical membrane, wherein the light guide plate comprises a light-in surface and a light-out surface connected with the light-in surface; the light bar is arranged on one side of the light-in surface; multiple LED light sources are spaced on the side of the light bar close to the light-in surface; the optical membrane is arranged on the light-out surface; multiple notches are arranged on the side of the optical membrane close to the light bar; and the multiple notches are in one-to-one correspondence with the multiple LED light sources. In the invention, by use of the optical membrane subjected to shape cutting according to the arrangement of the LED light sources, the problem of non-uniform brightness distribution on the light-in side of the backlight module is solved, the quality of the backlight module is improved, and the problem of light leak of the backlight module due to the narrow frame is solved.

The invention discloses a direct type back light module and an LCD which applies the direct type back light module. The direct type back light module includes a lamphouse, an optical membrane set, a plurality of light sources, a shaping reflector plate and a plurality of locating parts; wherein, the lamphouse is provided with a cut; while the optical membrane set is arranged between the light sources and the bottom part of the lamphouse. The shaping reflector plate is provided with a plurality of reflection inclines; besides, the light sources are respectively arranged between two neighboring reflection inclines. The locating parts are arranged on the bottom part of the lamphouse so as to independently locate the reflection inclines. The shaping reflector plate can reflect the beam emitting to the bottom part of the lamphouse, thereby being capable of further improving the uniformity of the beam provided by the direct type back light module and having better reliability. The display quality of the LCD can be improved.

The invention provides a polymerizable liquid crystal composition. The polymerizable liquid crystal composition comprises one compound, which comprises at least two polymerizable groups in a general formula I, used as a first component; one chiral compound, which comprises at least two polymerizable groups in a general formula II, used as a second component; a compound, which at least comprises one polymerizable group in a general formula III, used as a stabilizing agent; and a compound, which at least comprises one polymerizable group in a general formula IV, used as a light initiating agent. The polymerizable liquid crystal composition is high in compatibility, high in anti-yellowing property, and can be applied to the fields of flat panel display, flexible display and other optical films. The invention also provides an application of the polymerizable liquid crystal composition to the optical films.

The invention provides a backlight module and a liquid crystal display device. Only a first supporting mechanism and a second supporting mechanism are adopted in the backlight module to support a corresponding display panel, and then a U-type back plate is used for fixing a guide plate, a reflector plate, an optical membrane set and other components in the backlight module. Compared with the prior art, as two side edge supporting mechanisms are omitted, it is avoided that the two corresponding side edges of the backlight module are made wide to arrange the supporting mechanisms, then the border width of a liquid crystal displayer adopting the backlight module is reduced, the borders of the liquid crystal displayer can be made narrow, the requirement for the border width of clients are met, user experience is promoted, and cost is reduced.

The invention provides a backlight module, which comprises a backboard, a reflection sheet arranged in the backboard, a light guide board arranged on the reflection sheet and an optical membrane arranged on the light guide board, wherein the light guide board comprises a body, a plurality of upper positioning columns and a plurality of lower positioning columns; the plurality of upper positioning columns and the plurality of lower positioning columns are protruded on the upper surface and the lower surface of the body; first positioning holes are formed on the optical membrane corresponding to the upper positioning columns; second positioning holes are formed on the reflection sheet corresponding to the reflection sheet; positioning slots are formed on the backboard corresponding to the lower positioning columns; the first positioning holes in the optical membrane are correspondingly sleeved on the upper positioning columns of the light guide board; and the lower positioning columns of the light guide board pass through the second positioning holes of the corresponding reflection sheet and are arranged in the positioning slots on the backboard. According to the invention, rivet columns in the prior art are not used; the manufacturing process of the backlight module is simplified; the backlight module is simple in structure and is low in cost; and furthermore, the positioning columns are made of materials which are the same as that of the light guide board so that the backlight effect cannot be influenced.

The invention provides an optical membrane structure and a manufacturing method thereof. The manufacturing method is characterized in that: through a coextrusion process, a main substrate, a first transmission material and a second transmission material are combined into a whole to change the light advancing direction; in a rolling mode, a light guide microstructure is formed on the surface of thefirst transmission material directly; moreover, at least one layer or each layer of the main substrate, the first transmission material and the second transmission material is added with dispersion particles to form the optical membrane structure with scratch resistance and high production yield. Therefore, the invention can provide the optical membrane structure with high evenness; the structurecan be effectively prevented from structural warpage generated due to environmental change through coextrusion integral formation; and the improved optical membrane with scratch resistance and high production yield is formed through the design of the surface dispersion particles.

The invention provides a liquid crystal display device. The liquid crystal display device comprises a backlight module (20), a rubber frame (40) arranged above the backlight module (20), a liquid crystal display panel (60) installed in the rubber frame (40) and a front frame (80) installed on the liquid crystal display panel (60), wherein the backlight module (20) comprises a backboard (2), a light guide panel (4) arranged in the backboard (2), a backlight source (6) arranged in the backboard (2) and an optical membrane set (8) arranged on the light guide panel (4); the backlight source (6) comprises a printed circuit board (62) and a plurality of LED lamps (64) which are installed and electrically connected to the printed circuit board (62); the printed circuit board (62) comprises a side portion (622) and a bottom (624) vertically connected to the side portion (622); the rubber frame (40) is provided with an opening groove (42) corresponding to the backlight source (6); the side portion (622) of the printed circuit board (62) is contained in the opening groove (42).

Provided is a side light type surface light source, which has a high light use efficiency, a high luminance and a wide view angle. A liquid crystal display device using such light source is also provided. The surface light source is provided with a light source; a light guide body having at least one light incoming surface facing the light source and a light outgoing surface substantially orthogonally intersecting with the light incoming surface; and a first optical film arranged to face the light outputting surface. On the light guide body, a plurality of linear grooves or linear protruding sections are arranged substantially parallel on the light outputting surface or on the rear surface of the light outputting surface not outputting light. The first optical film has anisotropic diffusion characteristics, and is arranged to have a direction, in which the anisotropic diffusion is maximum, substantially parallel to the longitudinal direction of the linear grooves or the linear protruding sections.