摘要:
The image display device has an image display medium comprising a display substrate and a rear substrate having intersecting linear electrodes formed thereon, and containing black and white particles between the display substrate and the rear substrate. An image is displayed at high resolution by controlling a voltage applied to the electrodes.
摘要:
An image display device and image display method are provided. The device and method can prevent changes in image density and contrast, which are caused by repeated displaying over long periods of time and changes in environment, by employing accurate electric current detection, due to the following operations. Voltage measurement is initiated with a detection circuit. Next, the application of drive voltage is initiated with a drive power source. An electric current value is calculated from the measured voltage value and the electric current value is temporarily stored. The electric current values are stored every set amount of time and the storage thereof accumulates. Application of the drive voltage is terminated and the integral value of the electric current is calculated in accordance with formulas.
摘要:
In an image display device of the present invention, a display substrate has m row electrodes, and a back surface substrate has n column electrodes. The display substrate and the back surface substrate are disposed so as to face one another and such that the electrodes thereof are orthogonal to one another (a simple matrix structure). A top-plane side driving portion is structured by a row electrode driving circuit, a reversing portion, and a reversing switch. When the reversing switch is on, the reversing portion reverses relationships of connection between the row electrode driving circuit and the row electrodes. The backplane side driving portion is structured by a column electrode driving circuit, a reversing portion, and a reversing switch. When the reversing switch is on, the reversing portion reverses relationships of connection between the column electrode driving circuit and the column electrodes. In accordance with the image display device, when a large screen is formed by using a plurality of same image display media, images can be displayed normally at all of the image display media.
摘要:
The present invention provides an image display device capable of freely changing a scanning direction of an image display medium including support plates, first and second electrode groups provided at the plates and colored particles provided between the plates, including first and second electrode-driving components which receive electrode-designation signals and apply voltages to the designated electrodes in the first and second electrode groups, and which can apply voltage to plural electrodes simultaneously, a line-image-data generation component which generates line-image-data for line images to be displayed along scan electrodes in accordance with a scanning direction, and a signal-output-destination-switching component, in accordance with the scanning direction, which outputs a first electrode designation signal for designating a scan electrode of a line image and a second electrode designation signal for designating an electrode to be driven for displaying the line image, to the first electrode driving component or the second electrode driving component.
摘要:
In an image display apparatus and image display method suppress the degradation of display function and the shortening of service life due to long-term use, measurement of a current value is carried out and the measured current value each time a certain time elapses is stored. The integrated value of the current is calculated, and a comparator compares the integrated value with a reference value stored in a storage section for determining whether or not the result is greater than a prescribed value. If the result is affirmed to differ by prescribed value, a recovery voltage is applied, and it is determined whether or not a recovery time has exceeded a stored recovery time. If the excedance of the recovery time is affirmed, the application of the recovery voltage is terminated. If a negation is given at the determination of the greater difference value, the flow is ended. If a negation is given at the determination of the recovery time, the recovery voltage is applied.
摘要:
The present invention is for providing an image display device capable of preventing deterioration of display sharpness and contrast, and capable of improving display quality. An image display medium has a display substrate, having a first electrode, disposed on an image display surface side, a rear substrate having a plurality of second electrodes facing the display substrate, and two kinds of particle groups having different colors and charge characteristics sealed between the display substrate and the rear substrate movably between the first electrode and the second electrodes by an electric field. Before application of a display drive voltage for executing the image display, a voltage is applied to the image display medium by a voltage applying component so as to generate an electric field for moving the particle groups between the second electrodes to adjacent the second electrodes.
摘要:
The present invention provides a display element, which is driven at a low voltage, displays a high-contrast image with few density irregularities, and has improved image holding property. In a display element, which displays an image by moving, between a first and second substrate, particles having different colors and charge polarities by an electric field applied between the first and second substrates, the surface roughness of at least one of the substrates is 1 nm to 1 &mgr;m, the coefficient of shape is 100 to 140, the width and depth of the recessed part are not identical to the diameter of the particles and the contacting parts of the recessed part and the particles do not form a surface.
摘要:
In an image display apparatus and image display method suppress the degradation of display function and the shortening of service life due to long-term use, measurement of a current value is carried out and the measured current value each time a certain time elapses is stored. The integrated value of the current is calculated, and a comparator compares the integrated value with a reference value stored in a storage section for determining whether or not the result is greater than a prescribed value. If the result is affirmed to differ by prescribed value, a recovery voltage is applied, and it is determined whether or not a recovery time has exceeded a stored recovery time. If the exceedance of the recovery time is affirmed, the application of the recovery voltage is terminated. If a negation is given at the determination of the greater difference value, the flow is ended. If a negation is given at the determination of the recovery time, the recovery voltage is applied.
摘要:
An image processing device is provided for processing image data in order to display an image at an image display medium which is capable of displaying white, black, and colors at individual pixels, which are structured by pluralities of sub-pixels. The judgment component acquires the image data and judges whether there is a chromatic color or a non-chromatic color at each pixel. When a pixel is judged to be non-chromatic, the selection component selects a pre-specified black-and-white sub-pixel set in accordance with a gray level of the non-chromatic color. When a pixel is judged to be chromatic, the conversion component converts color data to a sub-pixel set of black and the color in accordance with a pre-specified condition. Of results of conversion, the replacement component replaces a pre-specified sub-pixel set of colors, in an individual pixel or in a pre-specified sub-pixel group, with a pre-specified black-and-white sub-pixel set.
摘要:
A method of manufacturing an image display medium for encapsulating powdered display elements uniformly between opposed substrates, and an image display medium. Spacer particles are formed in a grid pattern on a first flat substrate pulled out from a first film roll by a first electrostatic application apparatus, and spacers are formed on the first flat substrate by fixing by a first fixer. Then, black particles are applied on the entire surface by a second electrostatic application apparatus, and then white particles are applied on the entire surface by a third electrostatic application apparatus. Subsequently, black particles and white particles are removed from each upper surface of the spacers by a blade, and a second flat substrate pulled out from a second film roll is superimposed thereon, and each upper surface of the spacers is fixed to the second flat substrate by a second fixer.