42 results about "Liquid crystal cell" patented technology

The utility model discloses a kind of super twist nematic liquid crystal displays, and the display includes surface polarizer, liquid crystal box and bottom polarizer. Among them, liquid crystal box is composed of surface ITO glass, upper PI alignment film, sealing rubber edge, plastic ball rubber edge powder, liquid crystal layer, plastic ball center powder, lower PI alignment film and bottom ITO glass;ITO common electrode is etched on surface ITO glass, and it is distributed on surface ITO glass with wiring, forms separate ITO step and connects drive IC;ITO segment electrode is etched on bottom ITO glass, and it is distributed on bottom ITO glass with wiring, forms separate ITO step and connects drive IC. The present application is separated by setting common electrode and segment electrode on different glass substrate, using independent ITO step and drive IC, optimize the driving mode and structure layout, effectively improve the display performance of super twist nematic liquid crystal display.

The application provides an image generating unit and a display device. The image generating unit comprises a backlight module, a first liquid crystal panel, a second liquid crystal panel and a first polarizer; the first liquid crystal panel comprises a linear polarization structure, a first liquid crystal cell and a second polarizer arranged along the transmission direction of the outgoing light rays of the backlight module; the second liquid crystal panel comprises a second liquid crystal cell and a color filter; at least one of the components in the first liquid crystal panel, the first liquid crystal panel and the second liquid crystal panel, the components in the second liquid crystal panel and the second liquid crystal panel and the first polarizer is provided with an air gap with a preset width. The application uses a double-screen structure, the black-and-white first liquid crystal panel realizes regional dimming, which is beneficial to improving the contrast ratio; the color second liquid crystal panel removes the lower polarizer and is provided with a higher resolution, which is beneficial to improving the display effect; the structures are separated by a distance, the heat can circulate in the air, thereby enhancing the heat dissipation effect and reducing the heat.

The application relates to the technical field of optical elements, in particular to a volume polarization grating and a preparation method thereof, an optical waveguide and a display device, which comprises the following steps: step 100: obtaining a liquid crystal cell; step 200: irradiating a photoalignment agent coating layer on the liquid crystal cell with light of a first wavelength to induce patterned orientation; and step 300: irradiating a premix in the liquid crystal cell with light of a second wavelength to make reactive mesogenic monomers polymerize and solidify, thereby forming a volume polarization grating. The application realizes time sequence decoupling and synergistic optimization of "orientation writing-structure locking" in a single processing flow, realizes process simplification and time sequence decoupling, has comprehensive advantages such as a more complete structure and more stable performance, and can effectively solve technical problems in existing PVG patterning processing, such as complex flow, mutual interference between orientation and solidification, and limited efficiency and consistency.

There are provided an optical computing method and system for inspecting in through light a container. The container is illuminated by elementary emitting areas each emitting a polarized emitted light with an emitted polarization property of interest that varies according to a law of periodic variation which, over a primary period, follows a triangular variation as a function of the position of the elementary emitting area along the primary direction. Digital images are acquired, with at least one camera, with interposition of a linear analyzer having a given axis of polarization for a partial digital image. At least one primary raw refraction image is calculated, each pixel of which is representative of the refraction undergone by the light. The system advantageously includes a two-dimensional matrix of liquid crystal cells.

This invention relates to the field of cholesteric liquid crystal display technology. The invention discloses a cholesteric liquid crystal display device and its fabrication method. By using a dam structure to divide a single-layer liquid crystal cell into multiple pixel regions, and by injecting liquid crystal material containing a photosensitive chiral agent, selective exposure processing can form multiple cholesteric liquid crystals with different pitches in situ within a single liquid crystal layer, each reflecting different colors of light. This achieves full-color display in a single-layer structure, significantly simplifying the device structure, reducing overall thickness and manufacturing costs, and minimizing light loss due to light penetration through multiple layers. Furthermore, during processing, only two liquid crystal injections are required, along with illumination processing, to obtain three pixel regions reflecting different colors, greatly reducing the number of device processing steps.

The application discloses a kind of liquid crystal filling and frame sealing integration device of LCD display device, it is related to liquid crystal display processing technical field, including: negative pressure machine, the tail end of the negative pressure machine is equipped with coating machine, one end of the coating machine is equipped with electric telescopic clamping arm, the inner chamber of the negative pressure machine is equipped with crystal filling mechanism, the bottom of the crystal filling mechanism is equipped with liquid crystal cell;The crystal filling mechanism includes truss connected on the inner side wall of negative pressure machine, the top of the truss is equipped with closed sliding table;The bottom of the truss is rotatably connected with mounting bracket, and a plurality of fixed components are telescopically connected on the mounting bracket;The application realizes the efficient filling of liquid crystal by negative pressure main control and capillary auxiliary combination, cooperates with the precise extrusion structure of memory alloy heated deformation drive to optimize liquid crystal filling effect, simultaneously improves frame sealing reliability by light initiator synchronous penetration and UV rapid curing, greatly improves the processing efficiency of LCD cell forming process and product yield.

This utility model discloses a liquid crystal cell for rapid electrostatic discharge, relating to the field of liquid crystal display technology. The liquid crystal cell includes an upper electrode layer, a lower electrode layer, and a liquid crystal layer, with the upper and lower electrode layers positioned opposite each other, and the liquid crystal layer disposed between the upper and lower electrode layers. The upper electrode layer includes a plurality of COM trace electrodes and a plurality of first fill electrodes, and the lower electrode layer includes a plurality of SEG trace electrodes and a plurality of second fill electrodes. The first fill electrodes correspond one-to-one with the SEG trace electrodes, and the second fill electrodes correspond one-to-one with the COM trace electrodes. A ground electrode is provided in the upper electrode layer and / or the lower electrode layer. The plurality of first fill electrodes are electrically connected to each other and electrically connected to the ground electrode; the plurality of second fill electrodes are electrically connected to each other and electrically connected to the ground electrode. This utility model achieves rapid electrostatic discharge by grounding the first and second fill electrodes, eliminating the influence of electrostatic discharge on the liquid crystal display.

The application discloses a display panel and a display device, the display panel comprising an array substrate and a color film substrate arranged oppositely, the array substrate comprising a touch signal line and a touch via electrically connected with the touch signal line; the color film substrate comprising a black matrix and a plurality of color resistance blocks; wherein, in the direction perpendicular to the display panel, the color resistance blocks at least partially overlap with the black matrix; in the area where the touch via is located, the color resistance blocks have an overlapping structure protruding in the direction away from the touch via. By arranging the overlapping structure of the RGB color resistance in the direction away from the touch via, it can be ensured that the columnar spacers can still stand stably on the single color resistance layer, the flatness and support density of the top surface of the columnar spacers are ensured, the uniformity of the liquid crystal box thickness is maintained, and the mechanical stability and display uniformity of the display panel are improved.

The utility model discloses a kind of monitor liquid crystal box overturning clamping devices monitor liquid crystal box overturning clamping devices, including clamping support, both sides of the clamping support are symmetrically equipped with sliding guide rail seat, the sliding guide rail seat is slidably installed with sliding clamping frame seat by linear sliding guide, sliding clamping frame seat is fixedly installed with sliding clamping frame;Sliding guide rail seat is also equipped with clamping drive motor, and sliding clamping frame is driven by screw nut pair of clamping drive motor;Opposite position is provided with alignment clamping frame in the sliding clamping frame, and the alignment clamping frame and sliding clamping frame constitute clamping pair, and the alignment clamping frame is installed in alignment platform. This clamping type overturning machine is stable in grabbing, and clamping is reliable. The clamping device has the characteristics of stable clamping, high overturning efficiency.

This invention discloses a display panel, a display device, and a driving method. The display panel includes a dimming box and a display liquid crystal cell stacked on top of each other. The dimming box includes a first substrate, a second substrate, and a first liquid crystal layer. The first substrate and / or the second substrate are provided with a refractive layer, which has multiple protrusion structures. The first substrate is provided with a viewing angle auxiliary electrode, the second substrate is provided with a viewing angle control electrode, and a first electrochromic grating layer. In the wide viewing angle mode, the first electrochromic grating layer is in a transparent state, and the refractive index of the first liquid crystal layer is not equal to the refractive index of the refractive layer. The liquid crystal layer and the first liquid crystal layer together scatter light, achieving a wide viewing angle effect even with a single dimming box. In the first narrow viewing angle mode, the refractive index of the first liquid crystal layer is equal to the refractive index of the refractive layer, and the first electrochromic grating layer is in a non-transparent state. The first electrochromic grating layer has a light-collecting function, thereby achieving a narrow viewing angle effect.

The application provides a low driving voltage fast response intelligent dimming film, and belongs to the technical field of liquid crystal dimming films.The ferroelectric nematic liquid crystal DIO, liquid crystal monomer RM257, non-liquid crystal monomer EHA and photoinitiator IRG 651 are uniformly mixed in a certain proportion, then are poured into a liquid crystal cell with an indium tin oxide electrode at a certain temperature, wires are connected to the electrode and an alternating electric field with a certain intensity is applied, at the same time, ultraviolet irradiation is adopted to polymerize to complete curing, and thus an intelligent film based on polymer-restrained ferroelectric nematic liquid crystal with super-low driving voltage and fast response speed is obtained.The intelligent film has simple preparation, high yield, low driving voltage and stable performance, and can greatly reduce the energy consumption of building materials and improve the use safety.

The application discloses a chiral nematic liquid crystal grating based on an asymmetric orientation template and a preparation method, relates to the field of liquid crystal diffraction optical devices and near-eye display (XR / AR) optical waveguide coupling grating manufacturing technology. The preparation method comprises the following steps: step S10: providing a first substrate and a second substrate and preparing an orientation layer; step S20: forming an asymmetric grating orientation template; step S30: assembling a liquid crystal box; step S40: filling a reactive mesogen mixture; step S50: inducing by temperature reduction and curing under ultraviolet light to form a stable chiral nematic liquid crystal grating. The application adopts an asymmetric orientation template, avoids the high-precision registration requirement of double-sided patterning orientation on period and phase and the risk of orientation disorder, effectively suppresses defects such as dislocation and domain boundary, improves the structural integrity of the grating and the stability of the diffraction efficiency, and simultaneously reduces the equipment and process requirements, improves the yield and consistency in mass production.

This invention provides a head-up display device that allows users wearing polarized sunglasses to see the display light while also offering efficient use of the display light. [Solution] The head-up display device comprises a liquid crystal display element 7 having a first polarizer 21 and a second polarizer 22 facing each other with a liquid crystal cell 10 in between, a half-wave plate 40 through which display light Lp emitted from the liquid crystal display element 7 in response to illumination light C passes, and a rotation drive unit 8 that rotates the half-wave plate 40. The rotation drive unit 8 can switch the half-wave plate 40 between a first rotation position and a second rotation position. From the half-wave plate 40 in the first rotation position, S-polarized display light L is emitted toward the reflective surface of the windshield, and from the half-wave plate 40 in the second rotation position, P-polarized display light L is emitted toward the reflective surface.

This invention discloses an electrically controlled dual-mode imaging liquid crystal lens and its fabrication method, comprising a liquid crystal cell and a liquid crystal mixture within the liquid crystal cell. The liquid crystal mixture includes a liquid crystal matrix, polymerizable liquid crystal monomers, and a photoinitiator. Two liquid crystal lens structures with different imaging functions are formed on the upper and lower inner surfaces of the liquid crystal cell, corresponding to a bright-field imaging mode and a spiral phase-contrast imaging mode, respectively. Each liquid crystal lens structure includes a polymerized region and an unpolymerized region formed by laser selective curing. The orientation of liquid crystal molecules in the polymerized region is fixed, while the orientation of liquid crystal molecules in the unpolymerized region can be changed with the applied voltage. By applying different voltages to the liquid crystal cell, one of the two liquid crystal lens structures is activated while the other is deactivated, achieving electrical switching between the bright-field imaging mode and the spiral phase-contrast imaging mode. This invention achieves rapid electrical switching between bright-field imaging and spiral phase-contrast imaging modes, and combined with femtosecond laser direct writing technology, it enables single-step device fabrication.

A liquid crystal light control device includes a first liquid crystal cell, a second liquid crystal cell overlapping the first liquid crystal cell, a third liquid crystal cell overlapping the second liquid crystal cell, and a fourth liquid crystal cell overlapping the third liquid crystal cell. Each of the first, second, third, and the fourth liquid crystal cells includes, a first substrate including a first alignment film, a second substrate including an electrode having a strip pattern and a second alignment film, and a liquid crystal layer between the first substrate and the second substrate. An alignment direction of the first alignment film and an alignment direction of the second alignment film are aligned to intersect each other. A longitudinal direction of the strip pattern of the electrode having the strip pattern is arranged to intersect an alignment direction of the second alignment film.

The present invention provides an adhesive composition that offers excellent reworkability and durability, prevents uneven brightness, and, when an optical film is bonded to a thin liquid crystal cell via an adhesive layer, prevents curling of the liquid crystal display panel and exhibits good resistance to dents. [Solution] An adhesive composition comprising an acrylic polymer with a weight-average molecular weight of 1.5 million to 3 million, obtained by copolymerizing only (A) an alkyl (meth)acrylate monomer having C8 to C18 C atoms in the alkyl group, (B) an alkyl (meth)acrylate monomer having C1 to C5 C atoms in the alkyl group, (C) a copolymerizable vinyl monomer containing a hydroxyl group, and (D) a copolymerizable vinyl monomer containing an aromatic group, without containing a copolymerizable vinyl monomer containing a carboxyl group, a crosslinking agent, and a silane coupling agent, wherein the crosslinking agent is a trifunctional or more isocyanate compound.

Laminated glazing (1) with variable light transmission by liquid crystals comprising at least a first principal glass substrate (10), a second principal glass substrate (11), at least one liquid crystal cell (2) including dichroic dyes, the cell (2) being disposed between the first and second glass substrates (10, 11), and at least one UV filter (3) blocking UV up to 380 nm, characterized in that the laminated glazing further comprises a first filter element (5) that filters visible light in the wavelength range A from 380 to 450 nm, and a second filter element (6) that filters visible light in the wavelength range B from 451 to 700 nm, such that the laminated glazing, in its clear state at maximum light transmission, exhibits an average transmission T(A) of less than 30% over the wavelength range A, an average transmission T(B) of 0.1 to 40% over the B wavelength range,and colorimetric transmission coordinates a* from -6 to 5, preferably from -4 to 0, and b* from -5 to 5, preferably from -3 to 3.

The utility model discloses a kind of liquid crystal modulation light switching systems, comprising: liquid crystal box and optical function layer;Liquid crystal box has light switch function;Liquid crystal box includes light wave preselection layer, first light wave antireflection layer, first superwhite high-transmittance base material layer, first conductive layer, first orientation layer, liquid crystal material layer, second orientation layer, second conductive layer, second superwhite high-transmittance base material layer;Optical function layer is located below the liquid crystal box. By implementing the system of the utility model can greatly improve the stability and reliability of system, avoid false triggering and jamming problem, solve the problem that bimodal optical filter cannot completely filter target light wave, provide better imaging effect;Widen the application range and flexibility of product.

The application discloses a single / dual-wavelength switching method and device based on an inherent Lyot type liquid crystal filter structure, and specifically relates to the following: (1) single-wavelength transmission mode: the phase retardation of all cascaded liquid crystal boxes is controlled to meet the single-wavelength filtering requirement, all the multiple liquid crystal boxes are in the effective working state, and the single-wavelength narrowband transmission is realized. (2) dual-wavelength transmission mode: the maximum driving voltage is applied to the first and second cascaded liquid crystal boxes, the phase retardation of the first and second cascaded liquid crystal boxes is reduced to 0, only the remaining cascaded liquid crystal boxes at the rear are kept in the effective working state, and the dual-wavelength transmission is realized. The application effectively solves the limitation that independent filtering structures need to be designed for single-wavelength and dual-wavelength applications in the prior art, the inherent structure does not need to be changed, and only voltage regulation is needed to 'activate' the corresponding cascaded liquid crystal layer, so that the flexible switching of the working mode is realized.

The patent application belongs to the technical field of liquid crystal cell sealing, and particularly relates to a narrow-frame phone watch screen packaging device, which comprises a base provided with a cavity, wherein a silica gel mold is installed in the cavity; the device further comprises a telescopic mechanism, the telescopic mechanism comprises a lifting rod, a piston rod and a pneumatic control clamping plate, when the lifting rod is lowered to the screen and is clamped with the silica gel mold, four limiting plates can be clamped around the silica gel mold through a transmission mechanism, and when the lifting mechanism is lifted, the limiting plates are disengaged; the device further comprises a pneumatic mechanism and a glue pouring mechanism, the bottom of the silica gel mold is provided with a glue pouring hole and a vacuum hole, the glue pouring mechanism pours glue into the silica gel mold through the glue pouring hole, and the pneumatic mechanism can make the silica gel mold be in a positive pressure or negative pressure state through the vacuum hole, or make the lower part of the piston cavity be in a positive pressure state; the device further relates to a narrow-frame phone watch screen packaging process, and the purpose of the process is to automatically lock and limit and discharge, and the production efficiency is high, and damage is not easily caused.

A camera module includes a liquid crystal panel that has an incident light control area, a lens, an imaging device that acquires information of light transmitted through the incident light control area and the lens, and a control circuit. The liquid crystal panel includes a first guest-host liquid crystal cell that has a black state and a transparent state, a second guest-host liquid crystal cell that has a black state and a transparent state, and a liquid crystal device that is provided between the first guest-host liquid crystal cell and the second guest-host liquid crystal cell and has the incident light control area. The control circuit sets the first guest-host liquid crystal cell and the second guest-host liquid crystal cell to the black state to use the first guest-host liquid crystal cell and the second guest-host liquid crystal cell as polarizing plates.

An optical device comprising: at least one liquid crystal cell comprising liquid crystal material in a cell gap having a dimension at least partly defined by spacers, the liquid crystal cell comprisin

This invention relates to an electrically controllable switchable single-source lighting device integrating polarization and structured light, belonging to the field of optical lighting and 3D reconstruction technology. The device includes a polarization module, a moving mechanism, an electrically controlled motion mechanism, a Lyot depolarizing mirror, a striped structured light module, and a drive control module. It achieves electrically controlled switching between four lighting modes: vertically polarized light, horizontally polarized light, unpolarized white light, and polarized striped structured light. The drive control module also controls the voltage state of the TN-type liquid crystal cell and achieves N-step stripe phase shift through micro-phase shifting of the electrically controlled motion mechanism. This invention integrates multi-mode lighting into a single LED light source, achieving coaxial light source and natural data registration, and imparting structured light polarization characteristics, effectively suppressing interference from highly reflective surfaces. It is suitable for fields such as 3D scanning and machine vision.

This application relates to a display panel and its manufacturing method, belonging to the field of display technology. The display panel of this application includes a flexible substrate, a display functional layer, an isolation structure, an encapsulation layer, and a liquid crystal layer. The display functional layer is disposed on one side of the flexible substrate and includes multiple color resist portions. At least a portion of the isolation structure is located on the side of the display functional layer opposite to the flexible substrate. On a plane perpendicular to the height direction of the flexible substrate, the projection of the isolation structure covers the boundary area between two adjacent color resist portions and is configured to block light from the display functional layer. The encapsulation layer is disposed on the side of the isolation structure opposite to the flexible substrate. The isolation structure and the encapsulation layer together form multiple independent liquid crystal cavities on the display functional layer. The liquid crystal layer includes multiple liquid crystal cells, each liquid crystal cell being located within one of the liquid crystal cavities. The technical solution disclosed in this application can maintain good display performance even when bent or folded.

A liquid crystal optical element includes a first liquid crystal cell and a second liquid crystal cell overlapping the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate, a first electrode and a second electrode arranged on the first substrate, a second substrate arranged opposite the first substrate, a third electrode and a fourth electrode arranged on the second substrate, and a liquid crystal layer arranged between the first substrate and the second substrate. The first electrode overlaps a first end of the third electrode, a space between the third electrode and the fourth electrode, and the first end of the fourth electrode. The fourth electrode overlaps a space between the first electrode and the second electrode and a first end of the second electrode.

The invention discloses a display panel, a preparation method thereof and a display device. The display panel comprises a liquid crystal box; the first polaroid is located on the light emitting side of the liquid crystal box; the second polaroid is positioned on the light incident side of the liquid crystal box; the first polaroid or the second polaroid comprises a first optical compensation layer; the optical compensation film is located on the side, close to the liquid crystal box, of the first polaroid or the second polaroid comprising the first optical compensation layer, the optical compensation film comprises a second optical compensation layer, and the second optical compensation layer and the first optical compensation layer are configured to adjust the linear polarized light penetrating through the second polaroid to the absorption axis direction of the first polaroid.

The application discloses a preparation method of a polymer light-adjusting film with passive radiation refrigeration characteristics. ‑1 ) just covers the atmospheric transparent window (8-13 mu m), so by reasonable design, selecting non-liquid crystal light-crosslinkable monomers (NLCM) with strong chemical bond vibration in the range, that is, mid-infrared emission monomers, further uniformly mixing the monomers with liquid crystal small molecules, a photoinitiator and spacer particles to form an isotropic liquid, and filling the isotropic liquid into a liquid crystal cell formed by a flexible transparent conductive film, a simple ultraviolet polymerization induced phase separation method is adopted to construct an intelligent polymer light-adjusting film with passive radiation refrigeration characteristics. The novel polymer light-adjusting film shows excellent electro-optic response, displays stable and reversible light switch characteristics, and can effectively actively control the sunlight band by applying a low threshold voltage, so as to control the indoor temperature on demand. In addition, the polymer light-adjusting film obtains a high infrared emissivity in the mid-infrared region, so it has the ability of passive radiation refrigeration, and thus shows great potential in large-scale optical and thermal management.

Provided is a liquid crystal display device with sufficiently reduced or prevented alignment defect generation and useful as an in-cell touch panel capable of providing display in the reflective mode. The liquid crystal display device includes first and second substrates and a liquid crystal layer. The first substrate includes a reflective layer reflecting light, first and second electrodes capable of generating a transverse electric field in the liquid crystal layer, and a first horizontal alignment film. At least one of the first electrode or the second electrode includes strip portions and a slit between adjacent two strip portions among the strip portions. The second substrate includes a second horizontal alignment film in contact with the liquid crystal layer. The liquid crystal layer includes liquid crystal molecules having a positive anisotropy of dielectric constant and is in a twist alignment during no voltage application.

The lighting device includes an optical element and a light-source device located under the optical element. The optical element includes a liquid crystal cell and a plurality of light-shielding films. The light-source device has a housing and a light source in the housing and is configured to apply light onto the optical element. The liquid crystal cell includes a substrate, a plurality of lower electrodes located over the substrate and arranged in a stripe form, a first orientation film over the plurality of lower electrodes, a liquid crystal layer over the first orientation film, a second orientation film over the liquid crystal layer, an upper electrode located over the second orientation film and overlapping the plurality of lower electrodes, a counter substrate over the upper electrode, and a first polarizing plate and a second polarizing plate respectively located under the substrate and over the counter substrate.

This invention provides a head-up display device that allows users wearing polarized sunglasses to see the display light while also offering efficient use of the display light. [Solution] The head-up display device comprises a liquid crystal display element 7 having a first polarizer 21 and a second polarizer 22 facing each other with a liquid crystal cell 10 in between, which emits display light L upon receiving illumination light C, and a rotation drive unit 8 that rotates the first polarizer 21. The rotation drive unit 8 can switch the first polarizer 21 between a first rotation position and a second rotation position. From the first polarizer 21 in the first rotation position, S-polarized display light L is emitted toward the reflective surface of the windshield, and from the first polarizer 21 in the second rotation position, P-polarized display light L is emitted toward the said reflective surface. When the first polarizer 21 is in the second rotation position compared with when it is in the first rotation position, the liquid crystal display element 7 inverts the color tone of the image represented by the display light L.