Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 8040443 | Method for stacking thermal actuators with liquid crystal elastomer A method comprising arranging a first heating element on a first liquid crystal elastomer, arranging a first layer of thermal paste on the first heating element, and arranging a second liquid crystal elastomer on the first layer of thermal paste. ... | 10/18/2011 |
| 7936404 | Method for stacking thermal actuators with liquid crystal elastomer An apparatus comprising a first liquid crystal elastomer, a first heating element, a first layer of thermal paste, and a second liquid crystal elastomer. The apparatus further comprising a second heating element, a second layer of thermal paste, and a third liquid c... | 05/03/2011 |
| 7764324 | Terahertz camera A thermal imaging device is provided for converting an image in the terahertz radiation range to the visible range. In one embodiment, the device includes a converter having a thermochromic liquid crystal layer mounted on a sapphire base. In another embodiment, the ... | 07/27/2010 |
| 7372511 | Device for controlling spreading of liquid crystal and method for fabricating an LCD Device for controlling spreading of liquid crystal including a stage, and variable temperature controlling means in the stage for controlling spreading of the liquid crystal, wherein the variable temperature controlling means is formed of a heating wire, and control... | 05/13/2008 |
| 7359412 | Laser apparatus, laser irradiation method, and manufacturing method of semiconductor device It is an object to provide a laser apparatus, a laser irradiating method and a manufacturing method of a semiconductor device that make laser energy more stable. To attain the object, a part of laser beam emitted from an oscillator is sampled to generate an electric... | 04/15/2008 |
| 7355658 | Image display unit and game machine An image display in which, even when an observer moves vertically in a position viewing an image, a bright image is obtained. There are provided a liquid-crystal display panel (804) capable of transmitting light projected from backward, a light source (801... | 04/08/2008 |
| 7352353 | Electrostatically addressable electrophoretic display Novel addressing schemes for controlling electronically addressable displays include a scheme for rear-addressing displays, which allows for in-plane switching of the display material. Other schemes include a rear-addressing scheme which uses a retroreflecting surfa... | 04/01/2008 |
| 7339563 | High performance switchable polarizers for optical projection displays and circuits for driving the polarizers The invention is directed towards high performance switchable polarizers for optical projection displays. One embodiment of the invention is a switchable polarizer with (1) two conductive electrodes and (2) a liquid crystal material that is positioned between the tw... | 03/04/2008 |
| 7304634 | Rear electrode structures for electrophoretic displays Novel addressing schemes for controlling electronically addressable displays include a scheme for rear-addressing displays, which allows for in-plane switching of the display material. Other schemes include a rear-addressing scheme which uses a retroreflecting surfa... | 12/04/2007 |
| 7286111 | Apparatus for electro-optically writing a display A display writer for writing on a light writable display of the type having a layer of cholesteric liquid crystal material disposed between two conductors, the cholesteric liquid crystal material having multiple stable optical states at zero electrical field; and a ... | 10/23/2007 |
| 7270270 | Optical scanner control method, optical scanner and laser machining apparatus A optical scanner control method and a optical scanner capable of positioning a mirror at a high speed independently of a rocking angle, and a laser machining apparatus for irradiating a printed circuit board with a laser beam by use of the optical scanner to thereb... | 09/18/2007 |
| 7265864 | Optical write apparatus and optical write method An optical write apparatus has an image display screen 102 for displaying an image and role switch section 105 for switching the image display screen 102 between a role in displaying an image for observation and that in writing an image onto an ... | 09/04/2007 |
| 7256766 | Electrophoretic display comprising optical biasing element The invention features an electrophoretic display element. The display element includes an electrophoretic display medium, an optical biasing element to modify an optical characteristic of the electrophoretic display element, and an addressing electrode to address t... | 08/14/2007 |
| 7236364 | Case for portable terminal using color liquid crystal A case for a portable terminal using a color liquid crystal uses a Peltier device to vary the color of the case by means of electrical heating and cooling the interior of the case. The case includes a temperature control apparatus for emitting electrical heat, when ... | 06/26/2007 |
| 7196509 | Thermopile temperature sensing with color contouring A color contour of an object is displayed from information that is obtained using an array of thermopile sensors. A color contour of an object is generated by pre-establishing a relationship between IR radiation power and color, measuring the power of incident IR ra... | 03/27/2007 |
| 7185620 | Cam follower of a valve drive of an internal combustion engine A cam follower of a valve drive of an internal combustion engine, having a run-on surface for following at least one cam. The run-on surface has a microstructure comprising depressions for accumulating lubricant, wherein the depressions form an at least largely symm... | 03/06/2007 |
| 7167155 | Color electrophoretic displays Novel addressing schemes for controlling electronically addressable displays include a scheme for rear-addressing displays, which allows for in-plane switching of the display material. Other schemes include a rear-addressing scheme which uses a retroreflecting surfa... | 01/23/2007 |
| 7157301 | Semiconductor package security features using thermochromatic inks and three-dimensional identification coding Numerous embodiments of an apparatus and method for generating an identification feature are described. In one embodiment of the present invention, portions of an identification character printed with thermochromatic ink are distributed within a three-dimensional ma... | 01/02/2007 |
| 7154170 | Semiconductor package security features using thermochromatic inks and three-dimensional identification coding Numerous embodiments of an apparatus and method for generating an identification feature are described. In one embodiment of the present invention, portions of an identification character printed with thermochromatic ink are distributed within a three-dimensional ma... | 12/26/2006 |
| 7126652 | Light source device including a planar light source having a single, substantially continuous light emission area and display device incorporating the light source device A red light source comprising an array of LEDs 102R that emit light of a red color, a green light source comprising an array of LEDs 102G that emit light of a green color, and a blue light source comprising an array of LEDs 102B that emit light ... | 10/24/2006 |
| 7123312 | Apparatus having a rewritable display portion A videocassette has a display portion for displaying recorded contents. The display portion is formed with a display device. The display portion is formed with a display device. The display device has a conductive layer, a PDLC (polymer-dispersed liquid crystal) fil... | 10/17/2006 |
| 7017768 | Floatable barrier for use with a beverage container A floatable barrier suitably adapted for use with a beverage container having a circular base and a cylindrical wall extending vertically therefrom. The floatable barrier comprising top and bottom planar surfaces for displaying advertising material thereon and for f... | 03/28/2006 |
| 6980261 | Apparatus having a rewritable display portion A videocassette has a display portion for displaying recorded contents. The display portion is formed with a display device. The display device has a conductive layer, a PDLC (polymer-dispersed liquid crystal) film, and a protective layer. The display device can rep... | 12/27/2005 |
| 6942925 | Dichroic polarizer The invention belongs to polarizing devices and can be used in lighting equipment, manufacturing construction-material glasses, and in displays. The proposed dichroic polarizer includes a substrate and at least one layer dichroically absorbing electromagnetic... | 09/13/2005 |
| 6941818 | Equipment for disclosing pressure The invention relates to equipment such as for detecting and providing visual confirmation of pressure thereon, e.g. from an impact, which comprises an article having a sandwich construction with a pressure-disclosing layer (3) comprising a liquid crystal, th... | 09/13/2005 |
| 6885409 | Cholesteric liquid crystal display system A display system includes a display arranged to receive an image wise pattern of light to form an image, including, a pair of conductors, at least one conductor being transparent, a layer of cholesteric liquid crystal material disposed between the conductors, the li... | 04/26/2005 |
| 6829020 | Recording method and recording apparatus for thermoreversible recording medium Disclosed herein is a recording method for recording an image on a thermosensible image bearing medium that contains liquid crystal material. The liquid crystal exhibits a cholesteric phase at a temperature range higher than a room temperature so as to reflect selec... | 12/07/2004 |
| 6778227 | Apparatus having a rewritable display portion A videocassette has a display portion for displaying recorded contents. The display portion is formed with a display device. The display device has a conductive layer, a PDLC (polymer-dispersed liquid crystal) film, and a protective layer. The display device can rep... | 08/17/2004 |
| 6750923 | Display device A known display device consists of a sheet-like support which is covered with liquid thermocromic crystals. The crystals are tempered by individual power supply to individual heatable elements, which lie close to the crystals and are placed between the sheet-like su... | 06/15/2004 |
| 6723958 | Display with a heater Display with a heater, a) the display having at least one display glass, b) the heater having an electrically operated heating element connected to a voltage supply (UB, GND), c) the heating element comprising a thin layer, d) the layer being made of a material form... | 04/20/2004 |
| 6671027 | Liquid crystal display including heating layer and two bus bars formed by a clamp having two limbs A liquid crystal display having a liquid crystal cell (1) has electrical heating formed by an electrically conductive heating layer (3) on a substrate (2). On opposite sides, a clamp (4) forming a busbar in each case reaches over the substrate (2) and bea... | 12/30/2003 |
| 6560001 | Spatial optical modulating device A spatial light modulating device includes: an electrically-addressed type element for being addressed by electric signals representing information to be written, the electrically-addressed type element including an image display portion having a pixel st... | 05/06/2003 |
| 6552756 | Recording method and recording device using a heat reversible recording medium A heat reversible recording medium is disclosed which includes a cholesteric liquid crystal compound. By selective application of differing temperature profiles, regions of the recording medium can be fixed in states which selectively reflect light in dif... | 04/22/2003 |
| 6532046 | Liquid crystal display material, liquid crystal display method and liquid crystal display device The object of the present invention is to provide a novel liquid crystal display material having an excellent contrast ratio, a display method and a display device using the material. The present invention uses a liquid crystal display material comprising... | 03/11/2003 |
| 6524759 | Reversible recording medium, and reversible recording method and apparatus using the same A reversible recording medium has a support, a reversible light absorbing layer formed on the support, and, a reversible cholesteric reflection layer formed on the reversible light absorbing layer, containing a cholesteric liquid crystalline compound capa... | 02/25/2003 |
| 6472110 | Process for manufacturing liquid crystal display element The invention is for a process for manufacturing a liquid crystal display element for use in a color display using resist materials. The process comprises forming a transparent conductive film on one side of a transparent substrate; patterning the transpa... | 10/29/2002 |
| 6201587 | Apparatus having a rewritable display portion A videocassette has a display portion for displaying recorded contents. The display portion is formed with a display device. The display device has a conductive layer, a PDLC (polymer-dispersed liquid crystal) film, and a protective layer. The display dev... | 03/13/2001 |
| 6084702 | Thermochromic devices The invention is an energy efficient, thermochromic device for windows that allows sunlight or solar radiation into a building or structure when the ambient temperature is low and substantially blocks solar radiation when the ambient temperature is high, ... | 07/04/2000 |
| 6020866 | Method and display panel for displaying color image A color image is displayed by using a display panel with a color pattern layer which is formed on one side of a transparent substrate and has, for example, three separate sets of transparent pixel areas in red, green and blue colors which constitute a reg... | 02/01/2000 |
| 6005649 | Tiled, flat-panel microdisplay array having visually imperceptible seams This invention describes tiling structures, methods, and circuits for making large flat-panel displays from an array of microdisplays. The inventive displays overcome the intrinsic size limits of monolithic microdisplays and allow the construction of larg... | 12/21/1999 |
