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Class 345/106 - Thermochromic elements


Subclass of Class 345 - Computer graphics processing and selective visual display systems
Definition: Subject matter wherein the color of the display elements* is
No. of patents: 31
Last issue date: 05/13/2008


NumberTitleIssue Date
7372448Sensors and sensor circuits which convert sense currents to digital values
A sensor circuit, e.g., a circuit for use with a sensor that develops a current responsive to temperature, includes a digital to analog (D/A) comparison circuit having an analog sense current input and a digital input, the D/A comparison circuit operative to compare...
05/13/2008
7342556Display device and method of manufacturing same
A lower substrate including a first electrode and an upper substrate including a second electrode are opposed to each other. Partitioned spaces between the two substrates correspond to pixels, each including negatively charged black particles and positively charged ...
03/11/2008
7236364Case 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
7212223Labeling with thermally conductive pads
A method of labeling an object includes selectively applying focused energy to thermally conductive pads on the object to create a label on the object. The conductive pads are disposed adjacent to a thermochromic layer. ...
05/01/2007
7205970Liquid crystal display for wide viewing angle, and driving method thereof
A liquid crystal display and a driving method thereof. The liquid crystal display includes a timing controller, a gate driver, a data driver and a liquid crystal panel. The timing controller stores a plurality of sets of gray level correction values, each set of gra...
04/17/2007
7157301Semiconductor 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
7154170Semiconductor 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
7142190Cellular communication handsets having variable appearance housings and methods therefor
A wireless communication handset (100), or other electrical device, having a housing disposed about electrical communications circuitry. At least a portion of the housing, for example a bezel (144) or keypad area (148) comprising a variable inpu...
11/28/2006
7109969Electrophoretic display panel
The electrophoretic display panel (1) for displaying a picture, has a first and a second opposed substrate (8,9), an electrophoretic medium (5) between the substrates (8,9), a plurality of pixels (2), a first and a second electrode...
09/19/2006
7050039Arrangements enabling an audience to replay a presentation
An electronic business card has a memory storing presentation slide images, a display that displays the images, and a processing device that governs the display process. The card has input devices (pads or buttons such as FORWARD, BACK and INDEX) allowing the user t...
05/23/2006
6753854Display device
A liquid crystal display device having a digital driver is provided, which can realize higher definition and more gradations. A liquid crystal display device having a pixel region in which a plural number of pixel TFTs are arranged in a matrix shape, a source driver...
06/22/2004
6750923Display 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
6657611White color selection of display information
A system of a computer (PC) and a monitor (DA) enables a user to select a desired white color temperature of display information displayed on a display device (DD) of the monitor (DA). The computer (PC) includes a graphics adapter (GA) for supplying video...
12/02/2003
6657620Flat panel type display apparatus
There is provided a flat panel type display apparatus which is superior in heat radiation, withstand voltage characteristic, and the like. A flexible substrate having driving devices for driving a display body mounted thereon is provided on the back surfa...
12/02/2003
6652959Marking particles
Disclosed are marking particles comprising a resin, a chelating agent, and a spiropyran material which is of the formula ##STR1## The marking particles are prepared by an emulsion aggregation process....
11/25/2003
6603457Display device with moving pixel members
A display device having much fewer drive electrodes than expected by the number of pixels is formed by including a plurality of pixel members, an endless guide holding the plurality of pixel members movably therein, a pixel member mover disposed at a part...
08/05/2003
6583780Method for producing display panel and display panel
The present invention is a method in which microcapsules are placed at desired locations selectively accurately and easily to produce a high accuracy electrophoretic display panel. In the production method of a display panel of the present invention, the ...
06/24/2003
6580413Method and apparatus for the low cost formation and control of images on conformal materials
This invention provides a means for establishing and controlling a desired image on a material that is both conformal and flexible by nature. Such materials include paper, textiles, molded plastics, and woven fabric. The invention permits a low cost, effe...
06/17/2003
6426737Forming images by field-driven responsive light-absorbing particles
A transparent image producing display or receiver which uses a suspension fluid for producing pixels of an image includes at least one image-forming layer having a structure which defines a plurality of pixels, with the structure receiving a suspension fl...
07/30/2002
6326944Color image device with integral heaters
A display includes a substrate, a matrix formed over the substrate, and thermomeltable material disposed in the matrix, having a transition temperature range above room temperature wherein the viscosity of the thermomeltable material decreases substantial...
12/04/2001
6317188LCD having particular spacing between spacers
Spacers are disposed at only positions corresponding to positions of pixels of one of the color layers, thereby widening the spacing at which the substrates are supported, the planar spacing between the spacers being widened to 5 pixels in the horizontal ...
11/13/2001
6278430Thermosensitive display device
A thermosensitive display device including a thermosensitive material applied in a thin layer, and an array of resistors arranged on a thin flexible film. Each one of said resistors has a thin planar configuration and extends in the plane of said flexible...
08/21/2001
6268092Color filter, display element, display method and display device
A color filter having a substrate, (a 1st and 2nd) stimulus responsive high molecular gel particles each having a different color formed on the substrate, and a liquid in contact with the (1st and 2nd) stimulus responsive high molecular gel particles and ...
07/31/2001
5870072Apparatus and method for producing a viewscreen from a miniature high resolution chip
A miniature single monolithic chip is to be used to create a viewscreen for Computers, Television or Video applications. Magnifying this display would produce an inexpensive screen capable of being mounted on face goggles, or alternate stand alone apparat...
02/09/1999
5854614Display device and method for visualizing computer generated image information
An information display device including, as main components, a thermosensitive material layer which can be gradually converted between a completely opaque state and a completely transparent state under the influence of temperature, an electrode matrix, a ...
12/29/1998
5389946Apparatus and method for producing a viewscreen from a miniature high resolution chip
A miniature single monolithic chip is to be used to create a viewscreen for Computers, Television or Video applications. Magnifying this display would produce an inexpensive screen capable of being mounted on face goggles, or alternate stand alone apparat...
02/14/1995
4922242Apparatus exhibiting PTC behavior useful for displaying information
An apparatus for displaying information comprising a resistive element, preferably a conductive polymer resistive element, adjacent to a thermochromic layer. When electrically powered, the resistive element heats the thermochromic layer above a transistio...
05/01/1990
4835475Battery tester including a thermochromic material
This invention provides an apparatus for indicating the electromotive force of a dry battery which comprises: (i) a film base; (ii) an electrically conductive layer disposed on one side of the film base, (iii) a protective layer disposed on the electrically co...
05/30/1989
4442429Display apparatus utilizing a thermally color reversible display medium which has a hysteresis effect
Disclosed is an erasable display apparatus including a heat-sensitive medium 1 having a hysteresis effect relative to temperature change. This display apparatus comprises an endless broad-width heat-sensitive display medium 1, driving means 2 for rotating...
04/10/1984
4236156Switching of thermochromic and pressure sensitive films with surface acoustic waves
An apparatus for "fast erase" of thermochromic information displays is provided. A piezoelectric substrate (10) has a thin film (18) of vanadium dioxide deposited on the surface thereof. The film undergoes marked increases in reflectance at any region the...
11/25/1980
4078229Three dimensional systems
Method and media are provided for producing three-dimensional sensible objects by the intersection of radiation beams, whereby an active region is produced as a result of the intersection of said beams raising a molecule in the active region to its excite...
03/07/1978
 
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