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4205903 |
Writing/erasing technique for an electrochromic display cell
For an electro-optical display having an electrochromic material provided with a redox pair and sandwiched between a pair of electrodes, a first potential more negative than the threshold potential...
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4187003 |
Electrolyte for electrochromic display device
Improved performance is achieved in electrochromic display devices comprising an oxidation-reduction system and an electrolyte wherein the electrolyte comprises hypophosphite anions, phosphite...
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4183629 |
Electronic optical display device and method of manufacturing the same
An electronic optical display device comprising two substrates and an electronic optical substance sealed in a gap formed between said substrates and displaying when an electric voltage is applied...
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4181406 |
Electrochromic display device
An improved electrochromic display device having a transparent container containing an indication electrode, a counter-electrode and an electrochromic solution contacting the electrodes is...
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4166676 |
Method of turning off the display in electrochromic display devices
The display in a diffusion type electrochromic display device is turned off with high response by applying an A.C. input voltage having a frequency of one to ten times as high as the cut-off...
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4163982 |
Solid state electrical switch employing electrochromic material
A solid state electrical switch is described which exhibits high off/on resistance ratios and low insertion loss. An additional advantage is that removal of the switching energy does not alter the...
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4154512 |
Electrochromic indicator
The proposed electrochromic indicator can be used in clock dials and band selector indicators of radio receivers and it comprises electrochromic cells placed in series to form a closed circuit....
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4150876 |
Light amplification device
A light amplification device displaying particular utility in the display of micro intelligence. In a known light amplifier construction employing transparent sheets between which an electric field...
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4146876 |
Matrix addressed electrochromic display
A matrix addressed electrochromic display includes first and second spaced apart opposed planar panels, a dielectric spacer peripherally sealing the panels to provide an interior cavity...
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4146309 |
Process for producing evaporated gold films
A process is described for producing devices with gold films on surfaces composed of certain inorganic fluoride compounds. An adhesion compound such as lead fluoride, cadmium fluoride or tin...
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4142783 |
Reversible electrochromic display device having memory
This invention is concerned with a reversible electrochromic display device wherein its electrochromic activity is derived from an electrochromic active molecules which are attached to a porous...
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4139276 |
Electrochromic display devices comprising substituted fluorene compounds
Electrochromic display devices having very desirable stability and reversibility are obtained using as the oxidant certain fluorene compounds substituted with at least two alkoxy groups per...
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4139274 |
Apparatus for changing color
This invention relates to an apparatus for changing color utilizing new materials, the color of which changes, disappears or appears at the stimulation by, for example, light, heat, ions,...
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4132465 |
Electrochrome element control device
An electrochrome element control device comprising a voltage source connected in parallel via a switch with a circuit composed of a series-connected electrochrome element and a capacitor for...
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4129861 |
Multiplex addressing of electrochromic displays
An electrochromic data display and imaging device which may be formed by sandwich arrangement of the imaging area and the counter-electrode area with a suitable ion-conducting layer between. The...
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4126456 |
Visual image recording device
A direct view display device comprises a pair of conductive electrodes in spaced relationship and a recording medium having the properties of being both photo-ionizable and capable of...
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4006585 |
Electronic timepiece with electrochromic display element
An electronic timepiece with a digital display device employing electrochromic materials, such as titanate and niobate, as an electro-optical element. An electrochromic material produces different...
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3928658 |
Method of providing transparent conductive electrodes on a transparent insulating support
A method of providing patterns of transparent conductors for displays, with solderable contact pads which consist of layers of different materials. A metal auxiliary layer is used in which a...
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3772612 |
LIGHT MODULATOR
A metal-insulator-metal device formed of materials such as gold, polystyrene and aluminum. In response to the application to the device of a forward voltage for a relatively long time interval,...
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3500392 |
INDICATOR-CONVERTER
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3282158 |
Color reversible electrochemical light filter utilizing electrolytic solution
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