U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6637447

Beerbrella

A small umbrella which may be removably attached to a beverage container in order to shade the beverage container from the direct rays of the sun.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 349/103 - With particular non-zero and non-90 angle between opposite polarization axes


Subclass of Class 349 - Liquid crystal cells, elements and systems
Definition: Subject matter wherein the transmission or absorption axis
No. of patents: 56
Last issue date: 06/07/2011


1    
NumberTitleIssue Date
7956957Display device
An object is to provide a display device with high contrast ratio. Another object is to manufacture such a high-performance display device at low cost. In a display device having a display element interposed between a pair of light-transmitting substrates, a stack o...
06/07/2011
7443440Color separator and imager
A color separator includes a polarization converting section for converting an incoming light ray into a linearly polarized light ray such that the polarization direction of the linearly polarized light ray is selectable from a number of predetermined directions, an...
10/28/2008
7365721Projection display
The present invention provides an inexpensive projection display that allows a pixel grid as ineffective portions of respective pixels of a light valve to be made inconspicuous. The projection display includes a birefringent element (43) for spatially separat...
04/29/2008
7339645In-plane switching mode liquid crystal display device including field generating electrodes having a curved shape and method of fabricating the same
A method of fabricating an in-plane switching mode liquid crystal display device includes: forming array elements on a first substrate, the array elements including field-generating electrodes having a curved shape; rubbing one of the first substrate and a second su...
03/04/2008
7319500Viewing angle compensation film and liquid crystal display
There is provided a liquid crystal display which exhibits preferable viewing angle characteristics even in a diagonal viewing angle. Optical retardation films of a first type that satisfy nx>ny, nz and optical retardation films of a ...
01/15/2008
7289173Polarizing device, and method for manufacturing the same
A polarizing element 20 has a first undulating structure in which a plurality of linear first recesses 22 are formed parallel to one another in one surface of a transparent substrate 21, and a dielectric layer 30 made from silicon dioxide...
10/30/2007
7265801Display panel, and display device and electronic device using thereof
A display panel includes a first substrate, a second a second substrate a second a second substrate parallel and opposite to the first substrate, a liquid crystal molecules disposed between the first substrate and the second substrate, a first and a second polarizer...
09/04/2007
7236219Color twisted nematic liquid crystal displays
The present invention relates to color liquid crystal displays without the use of color filters. By carefully choosing the design parameters of a liquid crystal display, it is possible to obtain vivid colors from the display as a function of the operating voltage.
06/26/2007
7190416Liquid crystal display with touch panel having internal front polarizer
A liquid crystal display with a touch panel is described. The liquid crystal display includes a front panel including an internal front polarizer, a liquid crystal layer, and a rear panel including a rear polarizer. A touch transparent panel is secured to the front ...
03/13/2007
7023508Reflection-transmission type liquid crystal display device and method for manufacturing the same
A liquid crystal display device includes a substrate having a display region on which thin film transistors are formed and a pad region located in a periphery of the display region. The display region has a transparent electrode, the pad region has a pad electrode, ...
04/04/2006
6989877Liquid crystal display device and electronic apparatus
A liquid crystal display device and an electronic apparatus have superior visibility. A transflective reflective liquid crystal device comprises liquid crystals, an upper substrate, an lower substrate, an upper polarizing layer, a reflective polarizing layer, a lowe...
01/24/2006
6975372LCD and methods and systems for same
Methods and systems relating to a LCD are disclosed. In one exemplary embodiment, the LCD has an active state and an inactive state. The inactive state is configured to produce a desired residual image. The active state is configured to produce a desired non-residua...
12/13/2005
6970214Elliptical polarizer and liquid crystal display device
When an optical element is produced using a liquid crystal film having no supporting substrate film for the purpose of decreasing the weight, the liquid crystal film layer may often pose problems of fine wrinkly deformation of and cracking in a caused by strain occu...
11/29/2005
6961104Transflective liquid crystal display device and fabricating method thereof
A transflective liquid crystal display device includes: first and second substrates facing and spaced apart from each other, the first and second substrates having reflective and transmissive portions; a first retardation film on an outer surface of the first substr...
11/01/2005
6873099EL device, EL display, EL illumination apparatus, liquid crystal apparatus using the EL illumination apparatus and electronic apparatus
An electroluminescent (EL) display apparatus is constructed in such a way that a plurality of EL elements are disposed on one surface of an optically transparent substrate in a matrix so as to be isolated from each other and be powered individually, and at least one...
03/29/2005
6853411Light-producing high aperture ratio display having aligned tiles
A high aperture ratio emissive tiled display comprised of a plurality of tiles including a substrate with discrete layers of integrated drive circuits, thin film transistors, circuit conductor layer and light-emitting pixel array wherein all the electronic circuitry...
02/08/2005
6839103Elliptically polarizing plate and liquid crystal display
An elliptically polarizing plate, comprising a polarizer, a first optical anisotropic layer having positive refractive index anisotropy and an optical axis of the anisotropy that is tilted, and a second optical anisotropic layer having negative refractive index anis...
01/04/2005
6603521REFLECTION TYPE LIQUID CRYSTAL DISPLAY IN WHICH THE ABSORPTION AXIS OF POLARIZATION PLATE, THE OPTICAL AXIS OF HALF PHASE DIFFERENCE FILM AND OPTICAL AXIS OF QUARTER PHASE DIFFERENCE FILM HAVING PARTICULAR ANGLE TO THE ORIENTATION DIRECTION
A normally white reflection type liquid crystal display includes a polarization plate; a quarter wavelength plate; a transparent substrate; a transparent electrode; and a twisted nematic liquid crystal layer. The polarization plate, the quarter wavelength...
08/05/2003
6480248Method of illuminating liquid crystal layer and liquid crystal display device using the same
Disclosed are an LCD and a method of illuminating a liquid crystal layer. A protecting sheet is disposed on a reflection polarization film for enhancing the brightness. The protecting sheet is made of polyethylene terephthalate based material manufactured...
11/12/2002
6034758Low multiplex ratio dot matrix liquid crystal display
A passive dot matrix liquid crystal display having improved visibility comprises plural column electrodes on a first plate interconnected by a plurality of electrode bridges to form groups of interconnected column electrodes, wherein the number of electro...
03/07/2000
5796378Birifringence control type liquid crystal display device and apparatus and method of driving the same
A color liquid crystal display apparatus comprises an ECB (Electrically Controlled Birifringence) type liquid crystal display device, which has a plurality of dots arranged in a matrix form and displays a plurality of colors in accordance with applied vol...
08/18/1998
5781265Non-chiral smectic C liquid crystal display
A liquid crystal display according to this invention has a pair of transparent electrodes, a non-chiral smectic liquid crystal therebetween, a polarizer and an analyzer which are attached to the electrodes. The smectic layers are perpendicular to the elec...
07/14/1998
5291322Supertwisted, nematic liquid crystal display device with LC birefringence at least 0.2 and LC retardation at least 1 micrometer
A liquid crystal display device is disclosed, which comprises a liquid crystal cell including a first substrate having a first electrode, a second substrate having a second electrode, which is opposite to the first substrate, and a nematic liquid crystal ...
03/01/1994
5237438Liquid crystal display device
In an STN type liquid crystal display device, two retardation plates are located one on each side of an STN liquid crystal cell. A twist angle $c;0 of the liquid crystal cell is set to fall within the range of 200° to Ɗn.multidot.d value o...
08/17/1993
5235450Liquid crystal display apparatus with positive and negative phase plates with specific positions of slow axes
A liquid crystal display apparatus includes a twist supertwisted nematic liquid crystal panel (1) including a liquid crystal layer (8) provided between first and second transparent substrates (2, 3), and a first phase plate group (11; 13, 14) including at...
08/10/1993
5184237Super-twisted nematic type liquid crystal display device
A liquid crystal cell display device including a liquid crystal cell comprising a pair of substrates having transparent electrodes and aligning films, a liquid crystal composition with a positive dielectric anisotropy positioned between the substrates, ma...
02/02/1993
5139340Single polarizer, reflective type liquid crystal display device with high brightness and contrast ratio
A reflective type liquid crystal display device is achieved with enhanced brightness and contrast ratio utilizing only one polarizing plate or polarizer and a refelctor in combination with a liquid crystal cell wherein the light propagating through the li...
08/18/1992
5109291Ferroelectric liquid crystal optical modulation device having non-pixel portions controlled to a predetermined orientation state
An optical modulation device, comprising a) a cell structure including: oppositely spaced electrodes forming a pixel portion where the opposite electrodes face each other and a non-pixel portion where the opposite electrodes do not face each other, and a ...
04/28/1992
5082352Ferroelectric liquid crystal apparatus
A ferroelectric liquid crystal apparatus includes: a ferroelectric liquid crystal cell including a pair of substrates each having an electrode and an alignment film thereon, the alignment films being respectively provided with uniaxial orientation axes (p...
01/21/1992
5058998Liquid crystal display devide with a twisted alignment state
A liquid crystal device has a pair of substrates having a plurality of electrodes arranged on facing surfaces thereof, aligning films, rubbed in a predetermined direction, for covering the surfaces of the substrates and the surfaces of the electrodes, a n...
10/22/1991
5056896Liquid crystal display device with dielectric anisotropy
Disclosed herein is a liquid crystal display device comprising (1) a liquid crystal cell wherein a liquid crystal layer comprising a liquid crystal component having positive dielectric anisotropy is sandwiched between a pair of substrates having at least ...
10/15/1991
5033825Ferroelectric liquid crystal display device having equalizing means
A light crystal cell comprising a pair of substrates arranged substantially parallel and provided with electrodes on their opposite surfaces, and a ferroelectric liquid crystal composition held between these substrates, two polarizers arranged on either s...
07/23/1991
4989954Projection type liquid cyrstal display device
A projection type liquid crystal display device for transmitting three color light beams of RGB through three TN type liquid crystal panels and projecting the transmitted light beams optimizes the RGB transmission characteristics by changing the crossing ...
02/05/1991
4984873Liquid crystal display device
A liquid crystal display device, comprising: (a) a liquid crystal layer disposed between a pair of light permeable substrates, an alignment of a liquid crystal of said liquid crystal layer being substantially horizontal relative to said substrates in the absen...
01/15/1991
4974940Liquid crystal display device
A liquid crystal display device consisting essentially of a liquid crystal cell and a pair of the polarizing plates disposed on the both sides of said liquid crystal cells is disclosed. The liquid crystal cell has a liquid crystal layer in which a nematic...
12/04/1990
4952030Liquid crystal display device with a 50°-80° twist angle
A liquid crystal display device of negative display type, which comprises a liquid crystal cell comprising a nematic liquid crystal layer sandwiched between substrates provided with electrodes, a light shielding layer covering other than the area correspo...
08/28/1990
4936654Liquid crystal display device
A liquid crystal display device has substrates opposed to each other, a nematic liquid crystal layer having a positive dielectric anisotropy and homogeneously oriented to have a twisted structure where liquid crystal molecules are twisted with a twist ang...
06/26/1990
4909603Liquid crystal display element
A liquid crystal display element in which a liquid crystal layer is interposed between a pair of electrodes. At least one of the electrodes is light shielding. The liquid crystal display element utilizes a polarized light absorption axis for a pair of pol...
03/20/1990
4906073Liquid crystal display device using nematic liquid crystal having twisted helical structure and a phase correction plate
In a liquid crystal display device, light transmitting through a liquid crystal layer is colored depending on the structural conditions of the liquid crystal display device. The phase of the transmission light is corrected by means of a phase correction p...
03/06/1990
4884876Achromatic liquid crystal shutter for stereoscopic and other applications
An achromatic liquid-crystal shutter with high dynamic range, good transmission, and high speed. The inventive shutter reduces the phenomenon of "ghosting" (image doubling) that typically occurs in conventional plano-stereoscopic CRT displays due to the l...
12/05/1989
1    
 
Sign InRegister
Username  
Password   
forgot password?