19 results about "Optical membrane" patented technology

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 application relates to the technical field of display screens, in particular to a liquid crystal display screen and electronic equipment. The liquid crystal display screen comprises a backlight module, the backlight module comprises a light source, the light source comprises a light emitter and first fluorescent powder, the light emitter can emit blue light, and the first fluorescent powder is filled on the light emitting side of the light emitter; an optical film is arranged on the propagation path of the blue light emitted by the light source, the optical film is filled with second fluorescent powder, the heat resistance of the second fluorescent powder is weaker than that of the first fluorescent powder, and the distance between the second fluorescent powder and the light emitter is greater than the distance between the first fluorescent powder and the light emitter; one of the first fluorescent powder and the second fluorescent powder is green fluorescent powder, and the other is red fluorescent powder. The application can reduce the problems of brightness attenuation and color drift of the liquid crystal display screen after long-term use.

The invention discloses a backlight module and a display device, the display device comprises the backlight module and a liquid crystal display panel, the liquid crystal display panel is arranged on the light emitting side of the backlight module, and the backlight module comprises a back plate, a light bar, a polarization light guide plate and an optical film; the back plate comprises a bottom plate and side plates, and the side plates and the bottom plate are connected to define a containing cavity; the light bar is fixed with the side plate and comprises a plurality of polarized light-emitting devices which are arranged at intervals; the polarization light guide plate is arranged in the containing cavity, and the light inlet side of the polarization light guide plate is close to the light outlet side of the light bar. The optical film is arranged on the side, away from the bottom plate, of the polarization light guide plate and comprises a polarization-maintaining base material layer, and the polarization axis of the polarization-maintaining base material layer is parallel to the polarization axis of linearly polarized light emitted by the polarization light-emitting device. The light emitting efficiency of the display device can be improved.

The utility model discloses an ultrathin liquid crystal display device based on a blue light COB and a multi-partition quantum material, which comprises a liquid crystal display panel, a composite optical film, a quantum diffusion plate, a back plate, reflection paper and a light-emitting chip matrix which are sequentially attached together, the reflection paper is attached to the back plate, and the light-emitting chip matrix is installed on the surface of the reflection paper; the light-emitting chip matrix on the back plate comprises a short-distance light mixing area and a long-distance light mixing area, and the light mixing distance of the short-distance light mixing area is smaller than the light mixing distance of the long-distance light mixing area; the quantum diffusion plate is provided with a low-concentration quantum region and a high-concentration quantum region; and the quantum diffusion plate corresponds to the light-emitting chip matrix surface of the back plate. The multi-light-mixing-distance blue-light COB light source, the size-differentiated light source and dynamic backlight control are adopted, high-color-gamut expression is achieved, the brightness uniformity of the display device is improved, the color difference of a light-mixing connection band is eliminated through the concentration gradual change design of quantum dot materials, and the brightness uniformity is obviously improved.

The invention relates to the field of intelligent wearable equipment, and discloses intelligent sleeve glasses type multifunctional liquid crystal dimming glasses which comprise a glasses frame, glasses legs are fixedly connected to the two sides of the glasses frame, a color adjusting assembly is fixedly connected to the outer portion of the glasses frame, a shell is fixedly connected to the outer portions of the glasses legs, and an interaction assembly is installed in the shell. The shell is used for communicating with a mobile terminal APP and customizing the light transmittance, and a modularized light color self-adaption and audio enhancement integrated system is installed in the shell. The light color sensing module is arranged to collect ambient light intensity and spectral information in real time, a multi-layer color adjusting assembly composed of a red dye liquid crystal layer, a blue dye liquid crystal layer and a neutral gray light reducing film is combined, and a light color compensation algorithm integrated in the central processing module is used for cooperative operation. The driving voltage of the three layers of optical films can be dynamically adjusted according to specific color temperature characteristics of ambient light and user setting, so that color cast is compensated while brightness is adjusted.

A display device (1), relating to the technical field of display. The display device (1) comprises a backplane (20), a liquid crystal panel (30), and a fixing structure (10) located between the backplane (20) and the liquid crystal panel (30). Two ends of the fixing structure (10) are respectively attached to the liquid crystal panel (30) and the backplane (20); the display device (1) further comprises an optical film (40), the fixing structure (10) and the backplane (20) define a mounting slot (13), and the edge portion of the optical film (40) is embedded in the mounting slot (13). The display device (1) simplifies the production process and reduces the cost of the product.

The application discloses a narrow-frame high-screen-ratio full-screen liquid crystal display panel, and relates to the field of liquid crystal display panels, which comprises an outer frame, the inner wall of the outer frame is provided with a glass cover plate, the bottom surface of the glass cover plate is provided with an upper polaroid, the bottom surface of the upper polaroid is provided with a liquid crystal display module, the bottom surface of the liquid crystal display module is provided with an optical film group, and the bottom surface of the optical film group is provided with a glass light guide plate. The outer frame is buckled with the bottom frame, the glass cover plate is seamlessly attached with the polaroid, the frame width is shortened, the lower frame is folded and attached to the back of the backlight by means of the L-shaped flexible circuit board, the outer space is not occupied, the width is further reduced, the screen ratio is improved to 100%, three groups of LED light bars of the backlight driving layer adopt three-side light input, the length occupied by the lower light bar is reduced, and the frame redundancy caused by the dispersion of traditional LCD elements is eliminated.

The utility model discloses a kind of double-sided light type backlight module, comprising: backplate;Two groups of LED light bar are oppositely arranged in two inner side walls of backplate;Reflective sheet, light guide plate and optical film piece are sequentially placed in backplate and between two groups of LED light bar;Reflective sheet, light guide plate and optical film piece are centrally arranged between two groups of LED light bar.The utility model can make the light emitted by two groups of LED light bar evenly reflect via reflective sheet, then emit via light guide plate and optical film piece, so as to realize the uniform light emission of backlight module, to ensure the display quality of liquid crystal display.

The application provides a liquid crystal display, which comprises a back plate, a light emitting diode chip, a diffusion plate arranged on the light emitting diode chip, an optical film arranged on the diffusion plate, and a liquid crystal display panel. The liquid crystal display panel comprises an array substrate, a color film substrate arranged in a cell with the array substrate, a frame for bonding the color film substrate and the array substrate to form a cell space, and a liquid crystal layer arranged in the cell space. The width of the frame gradually increases from one side of the color film substrate to one side of the array substrate in the cross-section direction of the liquid crystal panel. The application can improve the display quality of the liquid crystal display.

The utility model relates to the technical field of metal plates, and discloses an ultra-narrow-edge thin direct type liquid crystal display module splicing aluminum profile frame structure which comprises an aluminum profile bottom frame, the aluminum profile bottom frame comprises a plurality of first vertical plates, first transverse plates are integrally machined among the first vertical plates, one side of each first vertical plate is fixedly provided with a step, and the first transverse plates are integrally machined among the first vertical plates. A positioning hanging buckle is integrally machined on one side of the first vertical plate, a first containing platform is arranged on one side of the first vertical plate, a bevel edge is machined on one side of the first vertical plate, and a bottom hole is formed in the middle of the inner side of the first vertical plate. And the LED lamp panel is installed on the top of the back aluminum plate through second screws, after the LED lamp panel is installed, the diffusion plate is installed on the top of the first containing platform, then the optical film material is installed on the top of the diffusion plate through the positioning hanging buckles, and therefore installation is convenient.

The utility model discloses a backlight module structure which comprises a lamp panel, a lampshade plate and an optical film which are sequentially arranged in a stacked mode from bottom to top, a plurality of light guide covers are arranged on the lampshade plate in an array mode, a plurality of lamp beads are arranged on the lamp panel in an array mode, and the lamp beads are arranged in the light guide covers in a one-to-one correspondence mode to form light emitting areas. Each surface of each light guide cover is inclined, the width of each light guide cover is gradually increased from bottom to top, the bottom of each light guide cover abuts against the lamp panel, and a partition wall is formed between each light guide cover on the lampshade plate and the adjacent light guide cover around the light guide cover; the partition walls are made of materials with the light transmittance of 10%-50%. When individual lamp beads of the liquid crystal screen break down, the normal backlight effect of the partition where the lamp beads are located can still be guaranteed, the sufficient display effect can still be kept in the corresponding display area on an automobile instrument panel, a driver can normally read instrument information in real time and timely and accurately know the automobile condition, driving safety is guaranteed, and the driving safety is improved. And moreover, the provided illumination is more uniform, and the display effect can be improved.

The application belongs to the field of audio-visual technology, and provides a television, which comprises a display module, a backboard, a frame assembly and a tweeter unit, the display module comprises liquid crystal glass, an optical film, an LED lamp plate and a diffusion plate, the backboard is located on the side of the LED lamp plate away from the user, the frame assembly is arranged around the LED lamp plate and can fix the display module, and the tweeter unit is arranged in the frame assembly. The television provided by the application can not only realize frame sound and obtain better broadcasting effect, but also can avoid making the width of the frame assembly of the television too wide, so that the consumer can obtain the frameless feeling as much as possible, and the demand of the consumer for the "full screen" watching experience can be met at the same time, so that the consumer group is expanded.

The application provides a high-precision adaptive diaphragm optical detection and sorting device, and relates to the technical field of sorting devices.The device comprises a conveying part, a feeding part arranged outside the conveying part, a jacking part arranged outside the conveying part, a rotating disc part arranged outside the conveying part, two groups of camera parts arranged inside the rotating disc part, a detection part arranged outside the conveying part, and a discharging part arranged outside the conveying part.The whole is supported by a support frame, the driving gear is engaged and driven by a driving motor, the rotating disc is controlled to continuously rotate, a plurality of light-transmitting supporting discs are circumferentially arranged on the rotating disc, a plurality of material flows can be simultaneously carried, and the two processes of photographing and positioning and material transfer are simultaneously performed, so that the material does not need to be individually stopped for photographing when being transferred, the overall sorting process is compressed, and the problems of a segmented redundant material flow process, a long overall process chain and a complex action process of the existing optical diaphragm detection and sorting equipment are solved.

The utility model discloses a liquid crystal display module, include: from below to above set gradually lamp plate, reflector, diffusion plate, optical film piece and panel, there are a plurality of lamp pearl in matrix distribution on the lamp plate, the reflector includes reflector body, a plurality of reflection cup and frame, and the opposite both ends of reflector body are used for fixedly setting lamp plate and diffusion plate respectively, a plurality of reflection cup is in matrix distribution in reflector body and penetrates the opposite both ends of reflector body, and the number of reflection cup and lamp pearl is equal and position one -to -one correspondence, and lamp pearl is set in its corresponding reflection cup, frame is fixed in the circumferential side of reflector body, and frame fixedly surrounds in the circumferential side of diffusion plate and optical film piece, and panel is fixed on the frame, the reflector of the utility model can replace the function of backboard and glue frame in traditional liquid crystal display module, to make the reflector have backboard, reflector and glue frame triple function, be favorable to the structure of liquid crystal display module and production technology are simplified, and reach the requirement of light and clever.

The utility model discloses an integrated ultra-narrow frame backlight structure of a display screen. The integrated ultra-narrow frame backlight structure comprises an integrated die-casting backboard, a heat-conducting double-faced adhesive tape, a light bar, a reflector plate double-faced adhesive tape, a reflector plate, an L-shaped silica gel limiting pad, a light guide plate, a diaphragm double-faced adhesive tape, an optical diaphragm and a middle metal plate. The integrated die-casting back plate is a display screen appearance part, a vehicle-mounted installation foot structure is designed on the back face of the integrated die-casting back plate, a conventional backlight containing cavity is designed in the front face of the integrated die-casting back plate, pre-fixing corner sinking grooves for installing L-shaped silica gel limiting pads are designed in the two corners of the backlight containing cavity, and a middle metal plate clamping structure is designed on one side wall of the integrated die-casting back plate. And a structural adhesive dispensing step surface connected with the display screen is designed on the other side wall. The integrated die-casting back plate is adopted, the appearance is more attractive, the thickness can be extremely thin, the backlight inner light guide plate is installed and limited more stably, the width of a backlight frame can be designed to be very close to the width of a liquid crystal glass black edge, and the dispensing curing connection width of a display screen can be designed to be very small.

The utility model discloses a backlight module, which relates to the technical field of liquid crystal display, and comprises a plastic-iron integrated frame body, a reflector plate, a light guide plate, an optical film material and shading glue are sequentially laminated in the frame body from bottom to top, the shading glue is adhered to the upper surface of the frame body, and the light guide plate is arranged on the upper surface of the frame body. A diffusion film, a lower brightness enhancement film and an upper brightness enhancement film are sequentially stacked on the optical film material from bottom to top, and a shading ink layer is arranged on the surface of one end of the diffusion film in a silk-screen printing mode. According to the backlight module provided by the utility model, the light rays emitted by the tail part of the light guide plate are shielded by silk-screening the shading ink layer at the tail part of the diffusion film of the light ray film material, so that the problem of bright lines at the tail part of a display area is solved, the display effect of a screen is improved, the reject ratio of the backlight module is reduced, the product competitiveness is improved, and the production cost is reduced.

The invention discloses a photoacoustic spectrometry gas detection device and method with a miniaturized all-optical structure, and the device comprises a modulation and demodulation module which comprises a first laser, a second laser, an optical fiber combiner, an optical fiber circulator, a photoelectric detector, a signal collection and calculation module and an optical switch, sequentially connecting through optical fibers to form a multiplexing optical path; the sensing probe comprises an acoustic resonant cavity and an optical fiber collimator, the acoustic resonant cavity is composed of two optical material mirror blocks and two fixing blocks, and one side, close to the acoustic resonant cavity, of each optical material mirror block is coated with an optical film layer; compared with the prior art, the integrated all-optical structure design is adopted, the technology of the detection device is simplified, the production cost is reduced, optical path multiplexing and a diaphragm-free pure optical structure are adopted, and the reliability, stability and accuracy of the device can be greatly improved; the application range is wide.

The objective of this invention is to provide a light-absorbing anisotropic film, optical film, and liquid crystal display device that exhibits low defects and high orientation even at high concentrations of dichroic substances. The light-absorbing anisotropic film of this invention is formed from a liquid crystal composition containing a liquid crystal compound and a dichroic substance. The total mass of the dichroic substance represented by formula (C-1) and the dichroic substance represented by formula (C-2) is 4.5% by mass or more relative to the total solid content of the liquid crystal composition. The liquid crystal compound is vertically oriented. In R... a1 With R a2 When the groups are the same, -N(R) b11 (R) b12 ) and -N(R b21 (R) b22 ) represent different groups. In R a1 With R a2 In the case of different groups, -N(R) b11 (R) b12 ) and -N(R b21 (R) b22 () can be the same group or different groups.