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95 results about "Liquid crystal" patented technology

Liquid crystals (LCs) are a state of matter which has properties between those of conventional liquids and those of solid crystals. For instance, a liquid crystal may flow like a liquid, but its molecules may be oriented in a crystal-like way. There are many different types of liquid-crystal phases, which can be distinguished by their different optical properties (such as textures). The contrasting areas in the textures correspond to domains where the liquid-crystal molecules are oriented in different directions. Within a domain, however, the molecules are well ordered. LC materials may not always be in a liquid-crystal phase (just as water may turn into ice or steam).

Mixed-light-source liquid-crystal projection light engine system

InactiveCN102621791AIncrease output brightnessSpeckle reductionPoint-like light sourceProjectorsCamera lensFluorescence
The invention provides a mixed-light-source liquid-crystal projection light engine system. The portable liquid-crystal projection light engine system is composed of a light source module, a polarized light management module, an image signal module and a projection lens, wherein the light source module consists of a high-brightness laser, an incoherent LED (Light-Emitting Diode) solid light source, a fluorescent device and the like. The output brightness of the projection system is greatly increased, the light source module is safe and environmentally friendly, and projected images have bright color and clear quality. The polarized light management module consists of a color-combining prism, a polarization beam splitter (PBS), a polarization color-combining device and the like, and different polarization states of three-primary-color mixed light are integrated into the same polarized light to be emitted to the image signal module. The image signal module is a monolithic reflection type liquid crystal light modulation device, and image signals are loaded to the three-primary-color polarized light in sequence according to the image signals corresponding to primary colors. The projection lens is used for projecting the light carrying the image signals onto a screen.
Owner:杭州研明光电技术有限公司

Liquid crystal aligning agent, liquid crystal alignment film, phase difference film, method for forming phase difference film, liquid crystal display device, and polymer

ActiveCN103509562AGood liquid crystal alignmentExcellent adhesionLiquid crystal compositionsPolarising elementsLiquid-crystal displayPhase difference
The present invention aims to provide a liquid crystal aligning agent which can form excellent liquid crystal aligning performance and is excellently sealed with a liquid crystal layer, a liquid crystal alignment film formed by the liquid crystal aligning agent, phase difference film including the liquid crystal alignment film and manufacturing method thereof, a liquid crystal display device including the liquid crystal alignment film, and a polymer serving as a suitable ingredient of the liquid crystal aligning agent. The liquid crystal aligning agent provided by the invention contains A, i.e., an ingredient where the same or different molecule thereof contains optical aligning radicals and radicals containing polymerism double bonds. The ingredient A is optionally a polymer ingredient. The optical aligning radicals are optionally radicals containing a cinnamic acid structure. The liquid crystal alignment film is formed by the liquid crystal aligning agent. The phase difference film contains the liquid crystal alignment film. The phase difference film is optionally used in the liquid crystal display device. The liquid crystal display device contains the phase difference film.
Owner:JSR CORPORATIOON

Embedded remote universal upgrading system based on general packet radio service (GPRS) and upgrading method based on embedded remote universal upgrading system

InactiveCN103078917AMeet the needs of upgradingRealize remote upgradeProgram loading/initiatingTransmissionGeneral Packet Radio ServiceIp address
The invention relates to an embedded remote universal upgrading system based on general packet radio service (GPRS) and a upgrading method based on the embedded remote universal upgrading system, which aims at solving the problems of the existing manual upgrading way that the labor and the material resource are greatly wasted and the universality of the upgrading system is poor. When a remote device needs to be upgraded, relevant upgrading configuration of the remote device is conducted by the remote working personnel through a liquid crystal screen of a remote upgrading controller, then an upgrading request and own internet protocol (IP) address are transmitted to a server, the server transmits a corresponding upgrading program file through a special upgrading software on the server to begin the upgrading. After the upgrading is completed, the remote device returns and transmits an upgrading completion log to through the remote upgrading controller so as to notify the server that the remote upgrading is completed. The embedded remote universal upgrading system and the upgrading method are suitable for upgrading the remote device to be upgraded.
Owner:HARBIN INST OF TECH

Liquid crystal display device and driving method thereof

ActiveCN101399013ANo loss of picture qualityImprove drive response speedStatic indicating devicesNon-linear opticsLiquid-crystal displayControl theory
The invention relates to a liquid crystal display (LCD) device and a drive method thereof. The drive method comprises: compensating input voltage of data wires in the current frame by comparing the input voltages of the data wire in the current frame and the former frame, thereby leading the input voltage of the data wire after being compensated to form overshoot voltage and to be output into a liquid crystal panel; controlling the starting / closing of LED backlight, when the overshoot voltage is output to the liquid crystal panel, the LED backlight is closed; while the overshoot voltage is recovered to the normal voltage, the LED backlight is started. The liquid crystal display (LCD) device comprises the liquid crystal panel, a time schedule controller, an overshooting device, a data driven device, a grid actuator and an inverter; wherein, the inverter is used for controlling the starting / closing of a plurality of lighting tubes in the LED backlight; when the overshoot voltage is output to the liquid crystal panel, the LED backlight is closed; while the overshoot voltage is recovered to the normal voltage, the LED backlight is started. The liquid crystal display (LCD) device and the drive method thereof have the advantage of rapid driving response, and the overshoot or undershoot can not cause image quality to be reduced, thereby decreasing the phenomenon of trailing smear and improving the dynamic display image quality.
Owner:K TRONICS (SUZHOU) TECH CO LTD +1

Large-size liquid crystal panel detection device

The invention belongs to the technical field of liquid crystal panel detection and particularly relates to a large-size liquid crystal panel detection device. The large-size liquid crystal panel detection device comprises a machine frame, wherein a material conveying device, a CCD (Charge Coupled Device) camera moving device, a rotary table, material taking and placing devices and a controller are mounted on the machine frame; the material conveying device, the rotary table and an overturning mechanism are sequentially mounted on the machine frame in the axial direction; the CCD camera moving device is positioned below a supporting plate of the rotary table; the overturning mechanism comprises a plurality of overturning devices which are mounted on the machine frame, are positioned on two sides of the axial direction and are symmetrically distributed; a guide rail is axially arranged at the top of each of the overturning devices on the two sides of the axial direction on the machine frame; the material taking and placing devices capable of moving along sliding rails are mounted on the two guide rails respectively. The streamlined detection device is adopted, the working state of each device is controlled by the controller, transporting and overturning of a liquid crystal panel can be controlled, and the whole detection device is high in automation degree, easy to operate and high in detection efficiency.
Owner:SUZHOU JINGLAI OPTO CO LTD

Liquid crystal display device, electronic device comprising same, and controller for liquid crystal display device

ActiveUS20100238105A1Improve image qualityStatic indicating devicesLiquid-crystal displayImaging quality
A liquid crystal display device provided herein can be switched between a display mode and a mirror mode, and can ensure a high image quality in the display mode.The liquid crystal display device comprises liquid crystal panel 200 including sub-pixels 254, 255, and back light 213 for irradiating light to the back surface of liquid crystal panel 200. Transmission sub-pixel 254 can be switched into an image display state which can allow irradiated light to exit, and a black display state which does not allow irradiated light to exit. Mirror sub-pixel 255 can be switched between a mirror state which can allow reflected light to exit and a non-mirror state which does not allow reflected light to exit, independently of transmission sub-pixel 254. A control unit places each transmission sub-pixel 254 into the image display state or black display state, and places each mirror sub-pixel 255 into the mirror state or non-mirror state.
Owner:NEC LCD TECH CORP

Display apparatus using LCD panel

InactiveUS20060250579A1Increase brightnessProjectorsColor television detailsFresnel lensMonochromatic color
A projection apparatus (10) has an illumination section (68) that provides at least a first, a second, and a third component wavelength illumination. At least two component wavelength modulating sections accept and modulate the component wavelength illumination to provide a modulated component wavelength beam. Each component wavelength modulating section has a portion of a monochrome transmissive liquid crystal modulator panel (118) that has been segmented into at least a first, a second, and a third spatially separate portion. A component wavelength polarizer directs substantially polarized light to the corresponding portion of the monochrome transmissive liquid crystal modulator panel. An illumination path Fresnel lens focuses incident illumination from the component wavelength polarizer through the corresponding portion of the monochrome transmissive liquid crystal modulator panel. An analyzer conditions the polarization of the modulated component wavelength beam. A lens forms an image of superimposed component wavelength beams for projection onto a display surface (40).
Owner:EASTMAN KODAK CO

Near-eye display apparatus and equipment, zooming module and zooming method

The invention discloses near-eye display apparatus and equipment, a zooming module and a zooming method, for solving the technical problem that a current display device is lower in the zooming effect.The near-eye display apparatus comprises a display module, a zooming module and a near-eye display slab waveguide, wherein the display module, the zooming module and the near-eye display slab waveguide are arranged along the optical path successively; the zooming module comprises an electrode unit and overlapped multi-layer PBLs (Pancharatnam Berry Lens); the electrode unit is used for applying/not applying voltage to the PBLs; each layer of PBL is an optical component which is made of liquid crystal and is based on geometric phase adjustment, and each layer of PBL has one focal power when novoltage is applied; during the projection process, the display module is used to emit circularly polarized light corresponding to an image to be displayed; the zooming module is used to receive the circularly polarized light and control the electrode unit to apply no voltage to N layers of PBLs according to the required focal power; and the total focal power of the N layers of PBLs is corresponding to the required focal power, and when N is greater than or equal to 2, the N layers of PBLs are continuous, and the near-eye display slab waveguide is used to import the light emitted from the zooming module into a human eye.
Owner:CHENGDU IDEALSEE TECH

Processing technique of liquid crystal television metal frame

ActiveCN101332483ASmall Bend Edge Fillet RadiusReduce shockShaping toolsEngineeringMachining process
The invention discloses a processing technology of a metal face frame of a liquid crystal television, and the processing technology comprises a processing procedure of folding edges and a processing procedure of ambient round angles. The processing technology is characterized in that an aluminum sheet with a cut in the middle is fixed between a concave pattern plate and a fixing plate in the processing procedure of folding edges, wherein the edge of a concave pattern cavity of the concave pattern plate is added with a ring of pressed rib pressed into the aluminum sheet, and the inner edge of the aluminum sheet is pressed by a convex pattern plate to form the folding edge; in the processing procedure of ambient round angles, three pairs of concave-convex pattern insert block components are adopted to bend, punch and shape the four round angles at the connecting places of the four straight edges on the folding edges in three steps, and the radiuses of the arc surfaces on the three convex pattern insert blocks of the concave-convex pattern insert block components are decreased sequentially. The processing technology of the invention can press the folding edges with smaller round angle radius and the four round angles at the connecting places of the four straight edges on the folding edges, and effectively prevent rupture at the four round angles in the processing course, which improves the product quality greatly.
Owner:SUZHOU VICTORY PRECISION MFG
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