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Class 349/177 - Within nematic phase


Subclass of Class 349 - Liquid crystal cells, elements and systems
Definition: Subject matter wherein the characteristic recited is that
No. of patents: 166
Last issue date: 08/30/2011


1          
NumberTitleIssue Date
8009263Bistable display
A bistable display having one or more permanent hideable mark, and a method of forming the permanent hideable mark, are described. The permanent hideable mark can be hidden and revealed numerous times without loss of information. ...
08/30/2011
7990515Bistable display
A bistable display having one or more permanent hideable mark, and a method of forming the permanent hideable mark, are described. The permanent hideable mark can be hidden and revealed numerous times without loss of information. ...
08/02/2011
7898638Liquid-crystal display device
Disclosed herein is a liquid-crystal display device capable of reducing leakage of light under a black state due to scattering from a liquid-crystal layer, and having high-contrast ratio, excellent image quality performance. The liquid-crystal display device compris...
03/01/2011
7684005Active matrix type liquid crystal display apparatus
A liquid crystal display apparatus includes a liquid crystal panel having polarizers, and a back light having a light source for illumination of the liquid crystal panel which has a characteristic of spectral transmittance required to satisfy the following equation,...
03/23/2010
7430030Bistable nematic liquid crystal display device
A bistable nematic liquid crystal display device comprises two opposed cell walls enclosing a layer of a nematic liquid crystal material. An inner surface of each cell wall is provided with an electrode for applying an electric field across at least some of the liqu...
09/30/2008
7410678Liquid crystal display using ferroelectric liquid crystal, and fabrication method thereof
A liquid crystal display utilizes ferroelectric liquid crystals in its construction. The liquid crystal display includes a first substrate, a first alignment layer over the first substrate, and a first ferroelectric liquid crystal layer over the first alignment laye...
08/12/2008
7357510Projection-type 3-D image display device using single projector
A projection-type 3-D image display device includes a single display element, a polarization conversion switch, a first image shifter, a second image shifter, a projection lens unit, a mirrored light tunnel, and a screen unit. The screen unit includes an image separ...
04/15/2008
7352346Bistable liquid crystal display device including improved addressing means
A method of electrically addressing a matrix screen of bistable nematic liquid crystals with breaking of anchoring is disclosed. Controlled electrical signals are applied respectively to row electrodes and to column electrodes of the screen. A plurality of rows are ...
04/01/2008
7342630Liquid crystal display device
The leakage of light and the disclination occur at the ends of the pixel electrodes where the equipotential lines bend toward the pixel electrodes. A dielectric 207 having a high dielectric constant is provided at the ends of the pixel electrodes to lift up t...
03/11/2008
7335404Liquid crystal composition for use in bistable liquid crystal devices
The invention is directed to the use of a liquid crystal composition in a bistable liquid crystal device and especially in a single polariser reflective or transflective zenithal bistable nematic liquid crystal device as well as a bistable liquid crystal device comp...
02/26/2008
7333159Liquid crystal display device having function of temperature maintenance
There is provided an LCD (liquid crystal display device) having a function of temperature maintenance. The LCD includes: a liquid crystal panel having a common heating electrode and a temperature detection unit formed in a predetermined region of the liquid crystal ...
02/19/2008
7311951Phoretic display
A phoretic display having a liquid crystal suspension medium and a relief structure alignment layer comprising a relief structure surface incorporating a plurality of indentations. The relief structure alignment layer is adapted to generate a preferred alignment of ...
12/25/2007
7280175Liquid crystal device exhibiting zernithal bistability and a cell wall for such a device
A bistable nematic liquid crystal device cell is provided with a surface alignment grating on at least one cell wall and a surface treatment on the other wall. Such treatment may be a homeotropic alignment or a planar alignment with or without an alignment direction...
10/09/2007
7279709Electronic ink display device
An electronic ink display device with a frontplane laminate and a TFT array substrate is provided. In the TFT array substrate, a first metal layer and a dielectric layer are disposed on a first substrate. The dielectric layer covers the first metal layer. A second m...
10/09/2007
7265809Flat panel display having integral metal heater optically hidden behind an EMI shield
A flat panel display having a black mask EMI layer isolated from Vcom and tied to zero potential. The flat panel display has an integral metal heater layer and thermal sensor that are in close proximity to the liquid crystals to provide efficient heating and tempera...
09/04/2007
7264851Bistable nematic liquid crystal display device
A bistable nematic liquid crystal display device comprises two cell walls enclosing a layer of nematic liquid crystal material having finely divided solid particles dispersed therein. At least one electrode on each cell wall applies an electric field across at least...
09/04/2007
7252418Lights for motor vehicles
Lights, in particular for motor vehicles, comprising at least one light source and a cover that is arranged in front of the light source in the direction of radiation, wherein the cover includes an electric diffuser which may change the optical properties thereof to...
08/07/2007
7224417Nematic liquid crystal bistable display device with grey level
The present invention relates to a nematic bistable display device, characterized in that it comprises control means (40) for producing, after the anchoring is broken, hybrid textures in which two bistable textures coexist in a controlled proportion within th...
05/29/2007
7221426Discharging method of in-plane switching mode liquid crystal display device
A method for discharging a in-plane switching mode liquid crystal display panel including: providing a color filter substrate and a thin film transistor substrate; forming a liquid crystal layer between the color filter substrate and the thin film transistor substra...
05/22/2007
7209211Active matrix type liquid crystal display apparatus
A liquid crystal display apparatus having a liquid crystal panel including a pair of substrates, a plurality of electrodes formed on at least one of the pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, and a light source provi...
04/24/2007
7205569Thin film transistor with microlens structures
A thin film transistor with a microlens. A metal gate is formed on a substrate. A gate dielectric covers the metal gate. A semiconductor layer is formed on the gate dielectric. Source/drain metal layers respectively overlap ends of the top surface of the semiconduct...
04/17/2007
7193675Liquid crystal display device
A liquid crystal display device includes first and second substrates, a plurality of gate bus lines and data bus lines on the first substrate, the gate bus lines being perpendicular to the data bus lines, a plurality of pixels defined by the gate bus lines and the d...
03/20/2007
7173587Addressing process and device for a bistable liquid crystal screen
This invention concerns a process for addressing a bistable liquid crystal material screen, characterized in that it comprises at least the step consisting of applying, to the screen column electrodes, an electrical signal whose characteristics are adapted to reduce...
02/06/2007
7122831Method of forming a reflective electrode and a liquid crystal display device
The present invention provides a method of forming a TFT and a reflective electrode having recesses or projections with reduced manufacturing cost and a reduced number of manufacturing steps, and provides a liquid crystal display device to which the method is applie...
10/17/2006
7123336Twisted nematic liquid crystal material with certain values for dielectric constant anisotropy, twisted elasticity modulus and refractive index anisotropy
An active matrix drive type liquid crystal display element capable of preventing deterioration of display capability caused by a stripe domain, and a projection type display device using the liquid crystal display element, by which there is provided a projection typ...
10/17/2006
7089814Apparatus for inspecting rubbing inferiority of alignment film of liquid crystal display device
An apparatus for inspecting rubbing inferiority of an alignment film of a liquid crystal display device by spraying moisture particles, the apparatus including a moisture storing unit for storing moisture, and a moisture particle generating unit for pelletizing mois...
08/15/2006
7092052Reflective liquid crystal display device and reflective liquid crystal display device incorporating touch panel arranged therefrom
A reflective color liquid crystal display device with a liquid crystal layer sandwiched between a first substrate having a light reflectibility and a second substrate having a light transmissibility. The liquid crystal layer being composed of twist-aligned nematic l...
08/15/2006
7088413Bistable nematic liquid crystal display device with improved optical mask, having textures differing by about 180° twist, and off state in the liquid crystal covering the inter-electrode spaces
The invention relates to a bistable nematic liquid-crystal device comprising: alignment means, which orient the liquid crystal, means designed to apply electrical signals which allow switching, by breaking the anchoring on at least one of the two substrates, between...
08/08/2006
7084939Normally white, supertwist nematic liquid crystal display of reflective type
A normally white supertwist nematic liquid crystal display of reflective type is provided. This display comprises a reflector, a layer of chiral nematic liquid crystal having a front aligning surface facing a light source and a rear aligning surface facing the refle...
08/01/2006
7079099Hold display unit for display of a moving picture
A hold LCD unit has an array of pixels including a first group of higher luminance pixels which pass a higher luminance state to a stable luminance state in each field, and a second group of lower luminance pixels which do not pass such a higher luminance state. The...
07/18/2006
7072013Liquid crystal display device having cholesteric liquid crystal polarizing film and internal retardation film and internal polarizing film
A liquid crystal display device includes first and second substrates facing and spaced apart from each other; a first polarizing film on an outer surface of the first substrate; a liquid crystal layer between the first and second substrates; a backlight unit under t...
07/04/2006
7053975Liquid crystal device
Liquid crystal devices are described that exhibit bistable, tri-stable or other multistable operation. The stable liquid crystal configurations are attained using a surface alignment grating (144) on the internal surface of at least one cell wall (142)...
05/30/2006
7042536Liquid crystal display element
A liquid crystal display element has a liquid crystal layer made of cholesteric liquid crystal and a circularly polarizing plate for circularly polarizing light. The liquid crystal layer has the following relation: d/p>1.5 where d is a thi...
05/09/2006
6999649Optical switches made by nematic liquid crystal switchable mirrors, and apparatus of manufacture
Technology for constructing a single layer polarization insensitive electrically switchable liquid crystal mirror is disclosed which serves as the basic element for constructing an optical router switch array in free space as well as waveguide format. The optical ro...
02/14/2006
6992741Bistable nematic liquid crystal device
A bistable nematic liquid crystal device includes an array of holes (8) in an alignment layer (6) on at least one cell wall (2). The alignment layer (6) induces a substantially planar local alignment of liquid crystal molecules. The holes...
01/31/2006
6987549Fast response in-plane-switching pi-cell liquid crystal displays
Transmissive liquid crystal displays having response time that can be approximately 2 to approximately 3 times faster than conventional displays. The displays adjust the rubbing angles to above approximately 20 degrees and preferably between approximately 30 and app...
01/17/2006
6981234Method of ITO layout to make IC bear the high-volt electrostatic discharge
The present invention provides a method of ITO layout to make IC bear the high-volt electro static discharge, wherein the major steps include: designing the suitable circuit impedance and Layout at the position of Driver IC bonding and Interface on LCD Module(COG ty...
12/27/2005
6977700Circular polarization plate and liquid crystal display device
A transflective liquid crystal display has a liquid crystal cell having a liquid crystal layer sandwiched between a pair of transparent substrates each provided with an electrode. A first polarizer is disposed on a viewer's side of the cell. At least one optical ret...
12/20/2005
6969542Liquid-crystal medium, and electro-optical display containing same
The present invention relates to nematic liquid-crystal media which comprise a) a dielectrically negative, liquid-crystalline component A comprising one or more compounds of the formula I
11/29/2005
6955839Laminated composite, information recording medium, and member of imparting forgery-preventing characteristic
According to the present invention, there is provided a laminated composite including an optical layer having a light reflectivity, and a latent image formation layer containing a liquid crystalline polymer material and provided on one of major surfaces of the optic...
10/18/2005
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