515 results about "Optical membrane" patented technology

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 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.

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 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.

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.

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 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 backlight module. The backlight module comprises an optical membrane, adhesive tape and a light guide plate. The optical membrane is arranged on one side of the light guide plate. One part of the adhesive tape adheres to the peripheral side wall of the light guide plate, and the other part of the adhesive tape adheres to the outer side of the optical membrane. The optical membrane is fixed to the light guide plate through the adhesive tape and is directly and stably fixed to the light guide plate through the adhesive tape, and therefore back plates, rubber frames and other parts in existing backlight modules are omitted, assembly gaps existing in the backlight module assembly process are eliminated, and the overall thickness of the backlight module is reduced. In addition, the backlight module is simple in structure, and therefore the manufacturing cost is reduced, the assembly process of the whole backlight module is more convenient and rapid, and the assembly efficiency is greatly improved.