Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 8081289 | Enhanced wavelength-converting structure An enhanced wavelength-converting structure is disclosed. The enhanced wavelength-converting structure includes a substrate, a wavelength-converting layer arranged next to the substrate, and a wavelength-selective reflecting layer arranged next to the wavelength-con... | 12/20/2011 |
| 7812919 | Cholesteric liquid crystal light modulators This invention relates to a method of fabrication of liquid crystal light modulating devises having electrically tunable spectral wavelength and more particularly, to a cholesteric liquid crystal display with electrically switchable colors. The cholesteric light mod... | 10/12/2010 |
| 7435357 | Polymerised liquid crystal film with retardation or orientation pattern The invention relates to a polymerised liquid crystal (LC) film comprising at least one photoisomerisable compound and having a pattern of regions with different retardation and/or different orientation of the LC material, to methods of preparing such a film, and to... | 10/14/2008 |
| 7425395 | Liquid crystal display device There is disclosed a liquid crystal display device having two substrates which are placed opposite to each other with a liquid crystal material sandwiched therebetween. A phase plate is formed on the liquid-crystal side surface of one of the substrates. The phase pl... | 09/16/2008 |
| 7416682 | Photochromic liquid crystals The invention relates to novel photochromic liquid crystal materials which may be used in various electro-optic devices including liquid crystal devices. The materials can be converted into another form on irradiation by light which may make it feasible for them to ... | 08/26/2008 |
| 7399562 | Transition film of flat panel display and a method using the same A flat panel display comprising a liquid crystal module, a backlight module, and a transition film is disclosed. The backlight module provides light to the liquid crystal module, and the transition film is disposed above the liquid crystal module. The transition fil... | 07/15/2008 |
| 7393570 | Broad-band-cholesteric liquid-crystal film, process for producing the same, circularly polarizing plate, linearly polarizing element, illiminator, and liquid-crystal display A broad band cholesteric liquid crystal film of the present invention is a cholesteric liquid crystal film obtained by coating a liquid crystal mixture containing a polymerizable mesogen compound (a), a polymerizable chiral agent (b) and a photoisomerizable material... | 07/01/2008 |
| 7391546 | Discrimination medium and discrimination method using the same A discrimination medium 10a includes a first double layered body 101 having a right-handed circular polarization polymer cholesteric liquid crystal layer 11 and a left-handed circular polarization polymer cholesteric liquid crystal layer ... | 06/24/2008 |
| 7387856 | Display comprising liquid crystal droplets in a hydrophobic binder The present invention relates to a display comprising at least one substrate and at least one electronically modulated imaging layer and at least one electrically conductive layer, wherein the electronically modulated imaging layer comprises a self-assembled, close-... | 06/17/2008 |
| 7387858 | Reflective display based on liquid crystal materials The present invention relates to a high contrast reflective display comprising at least one substrate, at least one electrically conductive layer and at least one close-packed, ordered monolayer of domains of electrically modulated material in a fixed, preferably cr... | 06/17/2008 |
| 7364671 | Optical component, orientation layer, and layerable polymerisable mixture A polymerisable mixture that can be applied as a layer, an orientation layer of the mixture, and an optical component, such as a retarder or a liquid crystal display, having a layer of which the mixture is a precursor. ... | 04/29/2008 |
| 7365816 | Liquid crystal display A liquid crystal display of the invention comprises an in-plane switching liquid crystal panel containing a liquid crystal layer whose alignment orientation changes according to an electric field in parallel with a surface of a substrate; a first polarizing plate an... | 04/29/2008 |
| 7365906 | Projection screen and projection system containing same A projection screen capable of sharply displaying an image even under bright environmental light with high image visibility. A projection screen has a polarized-light selective reflection layer with a cholesteric liquid crystalline structure, capable of selectively ... | 04/29/2008 |
| 7352422 | Retardation optical element and method of producing the same, and polarization element and liquid crystal display, each including retardation optical element Provided herein is a retardation optical element 10 that produces no bright and dark fringes on a displayed image even when placed between a liquid crystal cell 104 and a polarizer 102B and thus can effectively prevent lowering of display qualit... | 04/01/2008 |
| 7342602 | Polarization means and its position holding mechanism This invention provides a polarization means capable of obtaining an always clear three-dimensional image easily, correctly, and quickly and a position holding mechanism. A polarizing plate has areas for the left eye and the right eye where respective polarized ligh... | 03/11/2008 |
| 7333166 | Matrix display through thermal treatment The present invention relates to a display comprising a substrate, a patterned conductor, and a liquid crystal material having cleared areas and electrically writeable areas. The invention also relates to a method for making a display comprising providing a substrat... | 02/19/2008 |
| 7294303 | Broad band-cholesteric liquid crystal film and process for producing the same, circularly polarizing plate, linearly polarizing element, illuminator, and liquid-crystal display A broad band cholesteric liquid crystal film of the present invention comprises a cholesteric liquid crystal film obtained by polymerizing a liquid crystal mixture containing a polymerizable mesogen compound (a), a polymerizable chiral agent (b) and a photopolymeriz... | 11/13/2007 |
| 7274348 | Liquid crystal display apparatus A liquid crystal display apparatus which have a circular polarizer and a liquid crystal display in a stack. The liquid crystal display has a chilral nematic liquid crystal layer between substrates, and on the mutually opposite sides of the substrates, electrodes and... | 09/25/2007 |
| 7251412 | Backlight modules using diffraction optical elements Direct backlight modules using diffraction optical elements are provided. A direct backlight module includes a light source and a diffraction optical element, wherein the diffraction optical element is disposed above the light source. By properly arranging the phase... | 07/31/2007 |
| 7238397 | Black/white cholesteric bistable display with increased white reflectivity A cholesteric display is provided including a bistable liquid crystalline mixture contained between a first substrate and a second substrate of a liquid crystal cell, and a polymer network orthogonally oriented with respect to the substrates, thereby defining liquid... | 07/03/2007 |
| 7206130 | Projection screen and projection system comprising the same A projection screen for displaying an image by reflecting imaging light projected from a projector, including a substrate and a projected-image-receiving layer formed on the substrate. The projected-image-receiving layer has the function of selectively reflecting a ... | 04/17/2007 |
| 7206044 | Display and solar cell device Displays such as liquid crystal displays (10), organic light emitting diode displays, and touch sensitive displays (41) are stacked with one or more solar cells (15) such that light passing through the displays will illuminate the light receivin... | 04/17/2007 |
| 7202926 | Cholesteric reflective retardation optical element with directors at top surface of optical element parallel to those at the bottom surface of the optical element Provided herein is a retardation optical element 10 that produces no bright and dark fringes on a displayed image even when placed between a liquid crystal cell 104 and a polarizer 102B and thus can effectively prevent lowering of display qualit... | 04/10/2007 |
| 7201952 | Low voltage e-paper A cholesteric display including a liquid crystalline mixture having a dipolar dopant dissolved in the liquid crystalline mixture and the resulting mixture is reflecting light in the visible range of the spectrum when in planar state. In accordance with another aspec... | 04/10/2007 |
| 7193674 | Liquid crystal display device and method of fabricating the same A liquid crystal display device includes a lower substrate, an upper substrate facing the lower substrate, a common electrode and a plurality of data electrodes on the lower substrate to generate an In-Plane switching mode electric field parallel to the lower and up... | 03/20/2007 |
| 7193777 | Projection screen and projection system comprising the same A projection screen including a polarized-light selective reflection layer having a cholesteric liquid crystalline structure that causes selective diffuse-reflection of a specific polarized-light component, and a substrate for supporting the polarized-light selectiv... | 03/20/2007 |
| 7176619 | Self-luminescence image display unit A self-luminous image display apparatus of the present invention includes an output section for displaying an image, a reflection section provided on a rear side of the output section with a reflective surface thereof facing the output section, and a light-emitting ... | 02/13/2007 |
| 7161737 | Projection screen and projection system comprising the same A projection screen including a polarized-light selective reflection layer having a cholesteric liquid crystalline structure that causes selective diffuse-reflection of a specific polarize-light component, and a substrate for supporting the polarized-light selective... | 01/09/2007 |
| 7158297 | Projection screen and projection system comprising the same A projection screen includes a polarized-light selective reflection layer having a cholesteric liquid crystalline structure, capable of selectively diffuse-reflecting a specific polarized-light component; a substrate for supporting the polarized-light selective refl... | 01/02/2007 |
| 7158299 | Projection screen and projection system comprising the same A projection screen includes a cholesteric liquid crystalline, polarized-light selective reflection layer for selectively diffuse-reflecting a specific polarized-light component. The layer has, on its observation-side surface, a roughened part for controlling the di... | 01/02/2007 |
| 7148513 | Backlight units for liquid crystal displays A novel backlight is provided for a liquid crystal display (LCD). The backlight of this invention includes an organic electroluminescent (EOL) device and a cholesteric liquid crystal (CLC) polarizing device. This invention is also an LCD. The backlight of the presen... | 12/12/2006 |
| 7142280 | Extended chiral defect structure apparatus and method A chiral structure having an advantageous extended chiral defect that provides an enhanced energy distribution characteristic therein. This is accomplished by configuring a central portion of the chiral structure with a pitch different from the rest of the structure... | 11/28/2006 |
| 7133022 | Apparatus for image projection The invention is directed to a solid-state projection device incorporating a light source, modulator, and control circuitry on a single chip. For example, projection device may include several sets of VCSELs, each associated with a set of MEMs mirrors and coupled to... | 11/07/2006 |
| 7123409 | Projection screen and projection system comprising the same The present invention provides a projection screen capable of sharply displaying an image by minimizing the influence of the loss of light that occurs on a polarized-light selective reflection layer and of providing high image visibility. A projection screen include... | 10/17/2006 |
| 7123410 | Projection screen and projection system comprising the same A projection screen includes a polarized-light selective reflection layer having a cholesteric liquid crystalline structure, capable of selectively reflecting a specific polarized-light component; and a substrate that supports the polarized-light selective reflectio... | 10/17/2006 |
| 7113216 | Electronic camera with internal temperature increase controlled A camera is made compact with its internal temperature adjusted to a more appropriate temperature. A temperature T is read from a temperature sensor disposed within the camera (S100) and it is judged whether or not the temperature T exceeds a threshold Tref1 ... | 09/26/2006 |
| 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 |
| 7095466 | Diffusively reflective circular polarizer formed by thermo phase separation The present invention relates to a circular polarizer, more specifically, to a diffusively reflective circular polarizer (DRCP), which is characterized by broadband reflection and transmission over a hemispheric viewing angle. A thermo phase separation process of a ... | 08/22/2006 |
| 7084902 | Image display device, display method and digital camera for reducing display power consumption When an image is played back on a liquid crystal cell, an auxiliary lamp is turned on. In this way, a displayed image can easily be confirmed. If an image frame forward switch is not turned on after the auxiliary lamp is turned on, the auxiliary lamp is turned off. ... | 08/01/2006 |
| 7081941 | Liquid-crystal display device and colored resin substrate There is provided a liquid-crystal display device has at least a liquid-crystal panel which is constituted by a back side substrate having a colored resin substrate with an electrode, a visual side transparent substrate having a transparent electrode, and a reflecti... | 07/25/2006 |
