Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7348207 | Method of manufacturing organic EL device, organic EL device, and electronic apparatus A method of manufacturing an organic EL device that is capable of reducing the manufacturing cost by effectively using the material is provided. In the method of manufacturing the organic EL device including a white-light-emitting layer and a color filter, the white... | 03/25/2008 |
| 7336323 | Liquid crystal filter with tunable rejection band An optical wavelength filter uses birefringence and polarization to discriminate and block a wavelength stop band. Birefringent elements, each having a fixed retarder and a liquid crystal, are placed along the signal path with the fast and slow axes in each pair bei... | 02/26/2008 |
| 7334929 | Method of producing multicolor pixel sheet and color filter using the same The present invention is a method of producing a multicolor pixel sheet on which pixels of different colors (R, G and B) and a black matrix are formed. Pixels are formed with a gap therebetween on a light-transmitting substrate and each pixel is composed of a colori... | 02/26/2008 |
| 7311953 | Colored composition for color filter and display using color filters formed of the colored composition An object of the present invention is to obtain color filters having a high contrast, a high color purity and an improved transmittance for blue color, and a display using the color filters. In the present invention, there is used a colored composition for color fil... | 12/25/2007 |
| 7304620 | Image display apparatus and image display method The method and apparatus for displaying an image using liquid generate a segment fluid row, in which plural liquid masses each of which includes first liquid having at least one predetermined coloring matter and are separated from each other are arranged in a row sh... | 12/04/2007 |
| 7294372 | Conductive color filters A conductive color filter includes a layer of carbon nanotubes covered by a colored polymeric resin binder. ... | 11/13/2007 |
| 7294524 | Method for fabricating image sensor without LTO-based passivation layer A method for fabricating an image sensor including a first region, which is a light receiving region, and a second region, which is a pad region, includes forming a metal line in the second region over a substrate structure comprising a photodiode, forming a passiva... | 11/13/2007 |
| 7282843 | Electro-optical display having an arrangement of active and dummy coloring pixels performing as a color filter element A color filter (200) comprises pixels (13) separated from each other by partitions (14) formed on a substrate (12) so as to have a plurality of color elements of ink. Dummy pixels (13′) are formed outside the area in which the pi... | 10/16/2007 |
| 7274416 | Display device A subtractive display device comprising picture elements having sub-pixels, each sub-pixel comprising a stack of switchable layers (5,25) or components and a color filter part (21). ... | 09/25/2007 |
| 7255448 | Pixelated color management display A display system includes a light source, a spatial light homogenizer, and imaging optics. The spatial light modulator has a plurality of modulator pixels. The display system also includes a pixelated plate illuminated by the light source. The pixelated plate has a ... | 08/14/2007 |
| 7215395 | Liquid crystal display device The liquid crystal display device of this invention includes a plurality of picture element regions each defined by a first electrode provided on a face of a first substrate facing a liquid crystal layer and a second electrode provided on a second substrate so as to... | 05/08/2007 |
| 7190504 | Electro-optical device and electronic apparatus An electro-optical device is provided comprising an electro-optical material and means for applying an electric field to the electro-optical material, in which a plurality of pixel regions DR, DG and DB capable of separately controll... | 03/13/2007 |
| 7170679 | Optically active color filter An optically active color filter for controlling the color of light produced by a light source. The color filter includes an optically active device positioned between a linear polarizer and an adjustable position linear polarizer whose orientation can be controlled... | 01/30/2007 |
| 7126654 | Switchable color filter A liquid crystal switchable color filter switches between three color bands and is preferably used for time-sequential devices, such as projection devices, direct view displays and video cameras. The color filter may employ circularly polarizing selective reflection... | 10/24/2006 |
| 7108897 | Dye type polarizing plate This invention relates to a polyvinyl alcohol type polarizing film or plate which comprises a water-soluble dye having the formula (1) in a free acid form or a copper complex salt thereof. The said polarizing plate has excellent polarizing performance capability and... | 09/19/2006 |
| 7110054 | Switchable color filter The liquid crystal switchable color filter switches between three color bands and is preferably used for time-sequential color devices, as for example projection devices, direct view displays and video cameras. The color filter employs circularly polarizing selectiv... | 09/19/2006 |
| 7098974 | Cholesteric liquid crystal color filter substrate and method for fabricating the same A cholesteric liquid crystal (CLC) color filter substrate for reflective liquid crystal display devices comprises an alignment layer on a black substrate, a cholesteric liquid crystal (CLC) color filter on the alignment layer, the cholesteric liquid crystal (CLC) co... | 08/29/2006 |
| 7027224 | Wave plate mounting A compact mounting for a wave plate permits convenient rotational adjustment of the wave plate through an angle of at least one-half revolution to exploit asymmetry in the optical characteristics of the wave plate. ... | 04/11/2006 |
| 6995739 | Variable color display and articles incorporating same A display and a watch including a display which includes a first polarizing means, a second polarizing means, a display means, rotation means for causing relative rotation between said first and said second polarizing means, said second polarizing means being dispos... | 02/07/2006 |
| 6967671 | Polarization-direction-controlling element and exposure device A polarization-direction-controlling element having a ½ wavelength plate disposed with a crystal optical axis tilted at substantially 45 degrees with respect to a polarization direction of a beam of light separated by a polarization-separating element with a part o... | 11/22/2005 |
| 6903718 | Method of driving liquid crystal display This invention relates to a method of driving a liquid crystal display that is adaptive for displaying pixel color with high brightness in a liquid crystal cell. The method of driving a liquid crystal display having a color filter and a back light, includes arrangin... | 06/07/2005 |
| 6888659 | Polarization controller A polarization controller comprising means for generating linearly polarized light and at least one liquid crystal cell. A preferred embodiment of the invention comprises a linear polarizer and two liquid crystal cells. In the preferred embodiment, the polarization ... | 05/03/2005 |
| 6853416 | Liquid crystal display device In a liquid crystal display device comprising color filters therein, the present invention provides a color-converting material in at least one of the color filters which converts a part of an incident light of the at least one of the color filters into a light in a... | 02/08/2005 |
| 6816227 | Gray scale and color cholesteric liquid crystal displays A cholesteric liquid crystal display with gray scales is disclosed which includes a substrate, a patterned first conductor disposed over the substrate, and a layer including a cholesteric liquid crystal material dispersed over the first patterned conductor. The disp... | 11/09/2004 |
| 6800405 | Method of producing pattern-formed structure and photomask used in the same A method of producing a pattern-formed structure, comprising: preparing a substrate for a pattern-formed structure having a characteristic-modifiable layer whose characteristic at a surface thereof can be modified by the action of photocatalyst; preparing a photocat... | 10/05/2004 |
| 6790490 | Dye type polarizing plate This invention relates to a polyvinyl alcohol type polarizing film or plate which comprises a water-soluble dye having the formula (1) in a free acid form or a copper complex salt thereof. The said polarizing plate has excellent polarizing performance capability and... | 09/14/2004 |
| 6774963 | Liquid-crystal display device A liquid crystal display device having a back side light source, which can perform displays of both a transmissive type and a reflective type, employs interference filters formed with a multilayer film 18, 19 and 20 as color filters to be used for colo... | 08/10/2004 |
| 6768526 | Time-sequential color separator and liquid crystal projector using the same A fast time-sequential color separator that can fast-switch to output various wavelength ranges of lights having high color purity and a high contrast ratio, which includes: a prism module to separate an incident light into various wavelength ranges of light beams w... | 07/27/2004 |
| 6750928 | Multi-color display device A reflective-type multi-color display device is capable of obtaining a vivid and bright multi-color display with less display layers, and therefore, with a state where a parallax is decreased and a cost of the device can be reduced. Specifically, the display device ... | 06/15/2004 |
| 6657766 | Reflective display device and retro-reflector used therefor A reflective display device includes a switching layer, placed between substrates, for switching between a transmissive state for allowing transmission of incident light and a scattering state for scattering the incident light, and a retro-reflector for r... | 12/02/2003 |
| 6525707 | Liquid crystal display device and its driving method A liquid crystal display device capable of displaying in multiple colors, and a method for driving the liquid crystal display device using a typical monochrome liquid crystal driving IC. A display portion of a birefringence color liquid crystal display de... | 02/25/2003 |
| 6377321 | Stacked color liquid crystal display device A liquid crystal display device includes cell wall structure and a chiral nematic liquid crystal material. The cell wall structure and the liquid crystal cooperate to form focal conic and twisted planar textures that are stable in the absence of a field. ... | 04/23/2002 |
| 6342970 | Dielectric interference filter system, LCD-display and CCD-arrangement as well as process for manufacturing a dielectric interference filter system and use of this process A dielectric interference filter system with at least filter elements of different spectral characteristics on the same carrier substrate is provided. The filter elements have the same height and/or adjoin each other without gaps. The system is used for, ... | 01/29/2002 |
| 6317189 | High-efficiency reflective liquid crystal display A reflective display comprises a pair of substrates and a holographic polymer dispersed cholesteric liquid crystal (HPDCLC) material formed between the substrates. The holographic polymer dispersed cholesteric liquid crystal material comprises a holograph... | 11/13/2001 |
| 6181393 | Liquid crystal display device and method of manufacturing the same A liquid crystal display device of this invention includes a substrate having a pixel electrode on one major surface, a liquid crystal layer including first and second liquid crystal microcapsule layers sequentially stacked on the pixel electrode of the s... | 01/30/2001 |
| 6172722 | Chromaticity compensating liquid crystal filter This invention provides chromaticity compensation for color filters having nematic liquid crystal tuning elements, as well as fast-transition tuning units for use in combination with chromaticity compensation. The filters of this invention have two stages... | 01/09/2001 |
| 6156669 | Method of patterning a semiconductor device A method for forming semiconductor devices involves nebulizing a liquid suspension of particles to form tiny droplets of particles and liquid which are well separated from one another. The nebulized droplets may correspond roughly to the average particle ... | 12/05/2000 |
| 6088076 | Liquid crystal display apparatus using holographic optical element A liquid crystal display apparatus uses a holographic optical element to split the light from a light source for generating white light to R, G and B wavelength light components. The split light components enter respective pixels of a liquid crystal cell ... | 07/11/2000 |
| 6014195 | LCD device with polarizers having polarizing and transmittance characteristics A liquid crystal display device, for displaying pure white, has a first substrate having first electrodes formed thereon; a second substrate positioned to face the first substrate and having second electrodes formed thereon; a liquid crystal sealed betwee... | 01/11/2000 |
| 5917561 | Liquid-crystal image projecting apparatus having a color purity correction filter The image processing apparatus includes a lamp, fly eye lenses, an R reflective dichroic mirror, an R liquid-crystal light valve, a G reflective dichroic mirror, a G liquid-crystal light valve, a B dichroic light valve, a dichroic prism, and a projection ... | 06/29/1999 |