摘要:
An electrochromic display element includes a pair of counter electrodes having therebetween an electrochromic compound represented by Formula (1), wherein the electrochromic compound becomes colored when being oxidized and becomes colorless when being reduced by a driving operation of the electrodes: wherein R1 represents a substituted or unsubstituted aryl group; and R2 and R3 each represent a hydrogen atom or a substituent; X represents >N—R4, an oxygen atom or a sulfur atom; and R4 represents a hydrogen atom or a substituent.
摘要:
An electrochromic display element includes a pair of counter electrodes having therebetween an electrochromic compound represented by Formula (1), wherein the electrochromic compound becomes colored when being oxidized and becomes colorless when being reduced by a driving operation of the electrodes: wherein R1 represents a substituted or unsubstituted aryl group; and R2 and R3 each represent a hydrogen atom or a substituent; X represents >N—R4, an oxygen atom or a sulfur atom; and R4 represents a hydrogen atom or a substituent.
摘要:
This invention provides a novel electrochemical display element, which can realize bright white display, high-contrast black and white display, and full-color display by a simple member construction, and a method for driving the display element. The display element is characterized in that it comprises opposed electrodes, and an electrolyte, an electrochromic compound, a metal salt compound, and a white scattering material between the opposed electrodes, and multicolor display of three or more colors is carried out by black display, white display, and display of color other than black by driving the opposed electrodes by taking advantage of 1) a color change as a result of oxidation and reduction reactions of the electrochromic compound, and 2) a color change as a result of reduction precipitation and oxidation dissolution of a metallic element contained in the metal salt compound in at least one of the opposed electrodes.
摘要:
This invention provides a novel electrochemical display element, which can realize bright white display, high-contrast black and white display, and full-color display by a simple member construction, and a method for driving the display element. The display element is characterized in that it comprises opposed electrodes, and an electrolyte, an electrochromic compound, a metal salt compound, and a white scattering material between the opposed electrodes, and multicolor display of three or more colors is carried out by black display, white display, and display of color other than black by driving the opposed electrodes by taking advantage of 1) a color change as a result of oxidation and reduction reactions of the electrochromic compound, and 2) a color change as a result of reduction precipitation and oxidation dissolution of a metallic element contained in the metal salt compound in at least one of the opposed electrodes.
摘要:
Disclosed is a method of manufacturing an electrochromic display element having improved durability. Specifically disclosed is a method of manufacturing a display element containing opposed electrodes and a porous layer which is arranged between the opposed electrodes and containing a metal oxide and an electrochromic dye supported on the metal oxide. The method contains the step of applying plural kinds of inks to the porous layer by an inkjet apparatus, wherein the inks are capable of uniformizing the amount of the electrochromic dye supported on the porous layer containing the metal oxide in one pixel of the display element.
摘要:
Provided is a method of driving a display element in which color tone variation of white during repeated drive has been reduced. Also disclosed is a method of driving a display element in which an electrolyte comprising silver or a compound containing silver in a chemical structure thereof is contained between facing electrodes, comprising the step of applying a driving operation to the facing electrodes so as to induce dissolution and deposition of silver, wherein an impression necessary for displaying black color is the impression of a pulse applied to the facing electrodes, satisfying the following Expression (1). Expression (1) 1/100 ≦TBP/TW≦1/5, where TBP represents time width (ms) of one pulse applied in an applied direction necessary for black display, and TW represents the sum of applied time (ms) in an applied direction necessary for white display after conducting the black display employing the applied pulse.
摘要:
Provided is a display element which is drivable with simple components and at a relatively low voltage and exhibits high display contrast, enhanced white display reflectance, superior response speed and reduced image unevenness. The display element includes opposing electrodes having therebetween an electrolyte containing silver or a compound having silver in the chemical structure, wherein the opposing electrodes are driven by a drive circuit disposed for each of pixels so that the silver is dissolved and deposited and the opposing electrodes are provided on a plane separate from the drive circuit.
摘要:
Provided is a novel electrochemical display element which performs bright white display, high contrast black/white display and full-color display with a simple member configuration. A method for driving such display element is also provided. The display element contains an electrochromic compound, which is colored or has its color disappear due to oxidation or reduction, a metallic salt compound, an electrolyte and a white scattered material, between opposing electrodes. The display element substantially performs multiple color display of three colors or more, i.e., black display, white display and colored display other than black, by driving operation of the opposing electrodes.
摘要:
A display element in which a tone variation in halftone color is reduced at the time of repetitive driving. The display element contains electrolyte which contains silver between counter electrodes or contains a compound including silver in the chemical structure, and performs drive operation of the counter electrodes to cause dissolution deposition of silver. The display element is characterized by satisfying a relation A1/A2>4, where A1 (mA/cm2) is the maximum absolute value of a current flowing between the counter electrodes when they are driven in the direction for depositing silver from a state where silver is not deposited on the display electrode side, and A2 (mA/cm2) is the maximum absolute value of a current flowing between the counter electrodes when they are driven in the direction for dissolving silver from a state where silver is not deposited on the display electrode side.
摘要:
A rewritable display containing a substrate having thereon one or more constitution layers, one of the constitution layers being a liquid crystal layer containing a liquid crystal composition which is dispersed in a binder, and one of the constitution layers containing a compound selected from the group constituted of: (a) alumina particles; (b) a layer structured inorganic compound; (c) a specific azomethine dye compound represented by Formula (D) whose structure is described in the specification; (d) a fluorescent brightening agent; and (e) a ultraviolet absorber.