40 results about "Polarizer" patented technology

Method and apparatus for bonding a polarizing plate high in operating efficiency and yield. The apparatus includes a cutting unit for cutting at least a polarizing plate of a strip-shaped film, composed of the polarizing plate and a release film bonded to the polarizing plate, leaving the release film uncut, when a forward end side pre-severed end face of the strip-shaped film perpendicular to the longitudinal direction of the strip-shaped film has traveled up to a length corresponding to a length of a substrate, to form a film piece, a release film separating unit for separating the release film from the film piece thus severed, and a bonding unit for bonding the tacky surface of the film piece freed of the release film to a mating position of the substrate so that the forward end side end face of the transported substrate is parallel to the pre-severed end face of the film piece.

The present invention relates to a liquid crystal alignment layer composition showing excellent adhesive strength to a substrate and a liquid crystal layer and excellent homeotropic alignment of liquid crystals, a liquid crystal alignment layer prepared with the same, a preparation method of the liquid crystal alignment layer, an optical film including the liquid crystal alignment layer, and a display device including the same. According to the present invention, provided are a liquid crystal alignment layer composition which comprises 1-50 wt % of a photocurable resin binder, 0.01-5 wt % of an amine compound selected from the group consisting of primary and secondary amino-based coupling agents, 0.1-5 wt % of a photoinitiator, and the remainder solvent; a method for preparing a liquid crystal alignment layer by coating the substrate with the liquid crystal alignment layer composition, removing the solvent, and curing the liquid crystal alignment layer composition; an alignment layer which is prepared with the liquid crystal alignment layer composition of the present invention; an optical film which comprises the substrate, the alignment layer, and a liquid crystal layer formed on the alignment layer; and a display device including the optical film. The liquid crystal alignment layer formed with the liquid crystal alignment layer composition of the present invention has excellent adhesive strength to the substrate and to an upper liquid crystal layer, and provides excellent homeotropic alignment to liquid crystals. The optical film of the present invention can be applied to a polarizer by itself and can be very helpfully used as a retardation film or a view angle compensation film in various types of LCD modes such as IPS mode and the like.

The invention discloses a liquid crystal display screen. The liquid crystal display screen comprises an upper polaroid, an upper glass substrate, a liquid crystal layer, a metal wire grating polarizer, a composite optical layer and a lower glass substrate which are arranged in sequence from top to bottom, and further comprises a reflective sheet and a backlight source, wherein the backlight source is arranged on one side of the lower glass substrate; the reflective sheet coats the lower glass substrate and the backlight source; the top surface of the lower glass substrate is exposed out of the reflective sheet; the metal wire grating polarizer comprises a polarization substrate and a plurality of electrode strips which are formed on the polarization substrate through an etching process; the composite optical layer is used for adjusting light rays emitted from the upper surface of the lower glass substrate in order to form surface sources which are uniformly distributed. By adopting the liquid crystal display screen, a light guide plate of the liquid crystal display screen in the prior art is omitted, so that the overall thickness of the liquid crystal display screen is reduced greatly.

The present disclosure discloses a multi-optical parametric oscillator (MOPO) with actively regulated energy group distribution ratio (EGDR), the multi-optical parametric oscillator includes a first laser, a first polarizer, a first focusing lens, an optical isolator, a 1/2 wave plate, a second focusing lens, a first cavity mirror, an aperiodically polarized lithium niobate crystal, a second cavity mirror, an aperiodically polarized lithium niobate crystal loaded with a Y-direction voltage, a bonded lithium niobate crystal, a third cavity mirror, a third focusing lens, a second polarizer, anda second laser. According to the invention, an aperiodic polarized lithium niobate crystal loaded with Y-direction voltage and a bonded aperiodically polarized lithium niobate crystal are arranged ina multi-optical parametric oscillation cavity, , through combination with the second extracavity laser, the rotation of the polarization state and energy conversion of the signal light in the oscillation cavity is achieved, the change of the ratio of the signal light energy in the cavity is achieved by adjusting the power of the second extracavity laser, and finally the purpose of actively controlling the output idle light energy component is achieved.

This invention discloses optical modules, and eyewear using them for performing viewing function(s) including viewing a shutter-based 3D display, viewing a polarization-based 3D display, emulating the Pulfrich effect, emulating a pair of pinhole glasses and emulating a pair of sunglasses. In one embodiment, an optical module comprises: a first liquid crystal layer between a first and a second transparent conductive layers; a transparent protective layer attached to the first transparent conductive layer; a third transparent conductive layer; a matrix-electrode layer, comprising an array of independently addressable electrode regions each being transparent and electrically conductive; a second liquid crystal layer between the matrix-electrode layer and the third transparent conductive layer; a first linear polarizer attached to the second transparent conductive layer and the matrix-electrode layer; and a second linear polarizer, having a polarization orientation orthogonal to the polarization orientation of the first linear polarizer, attached to the third transparent conductive layer.

The present invention relates to a polarizing plate and an image display device having the same. More specifically, the present invention relates to a polarizing plate and an image display device having the same, the polarizing plate comprising: a polarizer layer; an adhesive layer formed on at least one surface of the polarizer layer; and a phase difference film including a structure in which a liquid crystal layer, an alignment layer, and a substrate make contact in regular sequence, and the liquid crystal makes contact with the adhesive layer, wherein the alignment layer is formed by a composition for forming the alignment layer, which includes an adhesion-reinforcing agent including an isocyanate group and a (meth)acrylate group at an end portion thereof so as to form bonds with a reactive group of the surface of the substrate and a reactive group in the liquid crystal compound of the liquid crystal layer, respectively, thereby simplifying a manufacturing process, achieving excellent interlayer adhesion, and enabling the implementation of a thin polarizing plate.

The invention discloses a device and method for pattern processing on the surface of a ceramic ball by using femtosecond laser, and belongs to the technical field of laser processing of ceramic surfaces with irregular shapes. The device comprises programming software, a femtosecond laser amplifier, a half wave plate, a polarizer, a converging lens, a scanning galvanometer, the ceramic ball with the irregular shape and a loading table with a three-dimensional precision displacement platform. The half wave plate, the polarizer, the converging lens and the scanning galvanometer are placed at theoutput end of the femtosecond laser amplifier in sequence. The ceramic ball with the irregular shape is placed on the loading table with the three-dimensional precision displacement platform. Deflection of the scanning galvanometer is controlled by using the programming software, and controlling over the trajectory and speed of femtosecond laser filamentation movement is achieved, so that femtosecond laser processing of three-dimensional parametric patterns on the surface of the ceramic ball is completed, and the device and method for pattern processing on the surface of the ceramic ball by using the femtosecond laser can show the extremely important function in the fields of precision processing of functional ceramic objects and carving of art ceramic products.

Curved lenses configured to decode three dimensional content and method of fabricating the same. The lenses comprise a polyvinylalcohol polarizer film laminated with triacetate on both sides, wherein the polarizer film has a polarizing efficiency equal to or exceeding 99% and a transmittance percentage equal to or exceeding 35% and a retarder film (e.g., norbornene copolymer resin) laminated on a front surface of the polyvinylalcohol polarizer film laminated with triacetate and aligned to produce a desired circular polarization responsive to specified retardation wavelengths.

The invention provides a polarizing plate capable of suppressing light leakage and an image display device. The polarizing plate (1) has a film-shaped polarizing film (7) and a plurality of optical films (3, 5, 9, 11, 13) overlapping with the polarizing film (7). The verticality (a/b) of a hole (21) penetrating through the polarizing plate (7) is above 0.00 and smaller than 0.32. The width (W) of a polarization eliminating part (23) around the hole (21) is above 0.00 [mu]m and smaller than 32 [mu]m.

The invention provides a multi-parameter measuring device based on a double-clad optical fiber. The device comprises a light source 1, a single-mode optical fiber 2, a polarizer 3, a polarization controller 4, the double-clad optical fiber 5 with a tilted grating 6 and a signal demodulator 7 which are connected in sequence. The double-clad optical fiber is provided with an inner cladding and an outer cladding, and the tilted grating is engraved on a fiber core. Light emitted by the light source forms a comb-shaped transmission spectrum after passing through the tilted grating, and the transmission spectrum comprises a Bragg resonance peak, an inner cladding resonance peak and an outer cladding resonance peak. When the external environment of the tilted grating changes, the transmission spectrum of the tilted grating changes, and real-time detection of parameters such as temperature, bending, axial strain and refractive index is realized by monitoring the changes of the wavelength and intensity of the resonance peaks, which has the advantages of small size, quick response, high sensitivity and the like.

The invention provides a carrier box for a polarizer. The carrier box comprises a box; a guide rail arranged on an inner bottom plate, wherein the guide rail is formed in a guide groove shape and locking walls are arranged at the two sides on the inner bottom plate; a slider mounted in the guide rail of the box and sliding along the guide rail and fixed at the preset position to limit the polarizer based on the size of the polarizer housed in the box, wherein the slider comprises a bottom moving piece inserted into the guide rail and locked on the locking wall, an upper moving piece arranged on the lower moving piece and contacting with the inner bottom plate at the two ends and a clamping assembly for clamping the lower moving piece and the upper moving piece and extruding the upper moving piece and fixing the upper moving piece on the inner bottom plate to limit the polarizer at the preset position.

The invention discloses a composite light beam metal SLM printing system based on Gaussian light beam and light beam shaping and a dual-light-source composite light beam metal SLM printing system. The dual-light-source composite light beam metal SLM printing system comprises a light beam shaper, a light beam coupler and a Gaussian light beam metal SLM printing system, and the light beam shaper and the light beam coupler are sequentially arranged between a first variable magnification speed expanding mirror and a fifth total reflection mirror. A second Gaussian light emitting unit is arranged in the vertical direction of the light beam coupler and comprises a second laser, and a second collimator, a second half-wave plate, a second polarizer and a second variable magnification beam expander which are sequentially arranged in the propagation direction of Gaussian beams emitted by the second laser. The invention further provides a single-light-source composite light beam metal SLM printing system. The system can use a single light source and double light sources to freely combine Gaussian light, annular light and flat-top light, different light paths are freely switched on the basis of the light beam shaping technology, the printing speed, efficiency and quality of parts are improved, and application and popularization of the SLM technology are promoted.

The present invention relates to laser technology and nonlinear optical field, and provides an all-fiber femtosecond laser aiming at the shortcomings of existing lasers such as average output power, low peak power, high mode-locking threshold, wide pulse or complex structure. The laser includes pump light source, wavelength division multiplexer, gain fiber, low dispersion small mode field nonlinear fiber, polarization beam splitter, band pass filter and polarization controller. The mode field diameter of low dispersion small mode field nonlinear optical fiber is <= 4. 2 [mu]m; The bandpass filter comprises a polarization dependent isolator, a polarization maintaining fiber and a polarizer. Polarization-dependent isolator fused to the polarized optical axis of the polarization-maintaining optical fiber at an angle of 45 DEG; A wavelength division multiplexer, a gain optical fiber, a low dispersion small mode field nonlinear optical fiber, a polarization beam splitter, a polarization dependent isolator, a polarization maintaining optical fiber and a polarizer are sequentially connected to form an all optical fiber ring cavity; A polarization controller is located between the polarization beam splitter and the polarization dependent isolator and/or between the polarizer and the wavelength division multiplexer.

The present invention provides a dual-band circular polarization selector and a preparation method thereof. The dual-band circular polarization selector comprises a dielectric substrate, a dielectricplate arranged on the dielectric substrate, a metal split resonant ring arranged on the surface of the dielectric plate, and a metal antenna arranged on the dielectric substrate, wherein an included angle is between the planes where the dielectric substrate and the dielectric plate are located. The dual-band circular polarization selector is a dual-band and miniaturized circular polarizer, the degree of integration is high, and the range of operating frequency is wide.

The invention provides an OLED display substrate and a display panel. The OLED display substrate comprises a plurality of light-emitting units arranged in an array mode; a pixel definition layer is arranged between every two adjacent light-emitting units; and the surface of one side, facing the display side, of each pixel definition layer is configured as a reflection surface. In this way, when the light-emitting units of the OLED display substrate are lightened, the pixel definition layers can shield light interference between the adjacent light-emitting units, the overall display color deviation is adjusted, and the reflection surfaces of the surfaces of the pixel definition layers are used as the mirror surfaces so as to meet the mirror surface display requirement of the OLED display substrate. Due to the fact that the reflection surfaces and the light-emitting units are basically located on the same space layer, the transmittance of the OLED display substrate is improved, so that the technical problem that the energy consumption is excessively high due to the fact that the display brightness is increased for compensation of relatively low transmittance is solved. In addition, due to the fact that a mirror reflection layer and a circular polarizer do not need to be additionally arranged, the machining process is simplified, and the manufacturing cost is reduced.

A liquid crystal display (200) includes a liquid crystal display panel (210) and a backlight module (220). The liquid crystal display panel has a first substrate (211), a second substrate (213), and a liquid crystal layer (212) interposed between the first and second substrates. A first polarizer (214) is attached to a top outer surface of the first substrate. A second polarizer (215) is attached to a bottom outer surface of the second substrate and has a plurality of diffusing particles (216) coated on either or both of opposite surfaces thereof.

The invention belongs to the field of image observation equipment and provides a micro-distance and wide-angle observation shooting device. The device comprises a parallel light source module, a wide-angle and micro-distance observation device, a pressing plate, a glass plate and a polarizer. An observed object is arranged between the pressing plate and the glass plate. The wide-angle and micro-distance observation device is arranged on the inner side of the glass plate. The view-field angle of the wide-angle and micro-distance observation device is larger than or equal to two times the Brewster angle. The parallel light emitted from the parallel light source module passes through the glass plate and then is reflected to produce the reflected light. The polarizer is used for eliminating the reflected light which is incident to the wide-angle and micro-distance observation device. The included angle between the optical axis of the parallel light emitted from the parallel light source module and the optical axis of the lens of the wide-angle and micro-distance observation device is the Brewster angle. The parallel light source module includes a plurality of parallel light source units. According to the technical scheme of the invention, the parallel light source units and the parallel light source module are applied to the wide-angle and micro-distance observation. Therefore, the problems that the glass plate reflects the light so as to cause the limited condition of both the lighting and the observation can be solved.

The invention relates to a garage bend indication system, including lighting lamps, a bend reflector and a power supply. The lighting lamps are installed on a roof, the ground or support columns of a garage; the bend reflector is arranged at a bend; electric power is provided by the power supply for the lighting lamps; the lighting lamps comprise lamp holders, lamp bodies and light transmission plates, the light transmission plates are made of polarizer materials, the light transmission plates are arranged outside the lamp bodies; the bend reflector includes a fixing seat, a convex mirror is arranged on the fixing seat, a transparent polarized light cover is arranged outside the convex mirror, the cover face of the polarized light cover is parallel to the mirror face of the convex mirror; and polarized light angles of the polarized light cover and the light transmission plates are different. According to the garage bend indication system, the principle is ingenious, the cost is low, line-of-sight pressure during warehousing in the bend can be effectively improved, observation of bend condition by drivers is convenient, and parking efficiency and safety is effectively improved.

The invention discloses an optical temperature sensor and a temperature measurement method. The temperature sensor comprises a housing, and the interior of the housing is provided with a first optical fiber collimator and a second optical fiber collimator. At least one wave crystal plate is disposed between the first optical fiber collimator and the second optical fiber collimator, and two sides of the wave crystal plate are respectively provided with polaroids in a parallel manner. Light passing through the first optical fiber collimator enters the polaroids vertically. The temperature measurement method comprises the steps: carrying out the accurate temperature calibration of the sensor, building the corresponding relation between the temperature and a central wavelength, and determining to-be-measured temperature through detecting the central wavelength of the outputted light. The sensor and method obtain the specific wave crest because the sensor and method can carry out the processing of the incident light through the polaroids and the wave crystal plate, obtain the environment temperature through detecting the central wavelength of the specific wave crest, and improve the temperature measurement stability of the sensor.

The invention relates to an all-solid-state laser device operating in a wide temperature range. The all-solid-state laser device comprises a high-power LED light source, two orthogonally-placed Porro prisms, a laser gain medium, a polarizing film and a quarter wave plate, wherein the high-power LED light source is used for generating pump light; the orthogonal Porro prisms, the laser gain medium, the polarizing film and the quarter wave plate are positioned on the same optical axis to form a resonant cavity for generating laser light; the laser gain medium is selected from the group consisting of Nd:Cr:YAG, Nd:Ce:YAG and Nd:Cr:Ce:YAG; an included angle between the polarizing film and the optical axis is a brewster angle; and the quarter wave plate is a zero-order wave plate corresponding to wavelength of the output laser light. The all-solid-state laser device is compact in structure and stable in performance, and can operate stably in a 100 DEG C temperature range from minus 40 DEG C to 60 DEG C.

The invention discloses a display panel, and a display method and a display device thereof. According to the display panel, a second polarizer is set as a plurality of first sub polarizers and a plurality of second sub polarizers, which are arranged at intervals, wherein each first sub polarizer has the same function as a normal polarizer, an optical axis direction of each first sub polarizer is vertical to a first polarizer; a two-dimensional plane where the optical axis of each second sub polarizer is located forms a preset included angle with the two-dimensional plane where the optical axis of the first polarizer is located, and thus the contrast of light penetrating through the second sub polarizers will be reduced under a large visual angle. Therefore, during normal display of the display panel, all pixel electrodes are started to meet the display of the large visual angle; and when the display panel performs anti-peeping display, only the pixel electrodes corresponding to the second sub polarizers are started, thereof the contrast of the light penetrating through the pixel electrodes is reduced under the large visual angle, the visual angle of a viewer is limited, and thus an anti-peeping display effect is realized. Compared with the prior art, the display panel disclosed by the invention has the advantages that the switch between normal display and anti-peeping display can be realized without using an additional switching device.

A liquid crystal display device includes a display element with a pair of substrates, a liquid crystal layer between the substrates, and an alignment film on a surface of at least one substrate facing the layer; a pair of polarizers on both surfaces of the liquid crystal element to sandwich the liquid crystal element; and at least one optical phase element between at least one of the polarizers and the liquid crystal element, wherein an optical refractive ellipsoid of the optical phase element is tilted clockwise or counterclockwise from the normal of a surface of the optical phase element, wherein at least one of rates of variation of an ordinary refractive index and an extraordinary refractive index of a liquid crystal material of the liquid crystal layer with respect to a wavelength is set in a range where viewing angle dependent coloring does not occur on a screen.

A method for prepared polarization unit applied on display forms at least one diffusion layer on display face plate or on polarization plate of said display for raising visual angle scope of said display.

The present invention relates to a radical-curable adhesive composition including a (A) radical-polymerizable compound that includes at least one hydrophilic functional group in the molecule in greater than 30 parts by weight and less than or equal to 93 parts by weight; a (B) multifunctional (meth)acryl-based compound in 5 to 40 parts by weight; a (C) phosphate compound that includes one or two (meth)acrylic groups in the molecule in 1 to 40 parts by weight; and a (D) radical initiator in 0.5 to 20 parts by weight, with respect to 100 parts by weight of the radical-curable adhesive composition, and a polarizing plate and an optical member including the radical-curable adhesive composition.