摘要:
An image display device is provided. The image display device has: an image display medium where charged particle groups are sealed between a pair of substrates at least one of which has translucency and which are opposed to each other with a space therebetween, and display density is changed by transfer of the charged particle groups between the pair of substrates according to an electric field formed by a voltage applied between the substrates; a temperature measuring unit that measures a temperature of the image display medium; a voltage applying unit that applies, between the substrates, a driving voltage according to the temperature of the image display medium measured by the temperature measuring unit, based on a predetermined voltage applying condition corresponding to the temperature of the image display medium, in order to display an image with predetermined display density on the image display medium.
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:
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:
An image display device is structured with an image display medium, a voltage applying unit and a control unit. The image display medium has black particles and white particles enclosed in a space between a transparent front substrate and a rear substrate. The front substrate is structured with a lamination having a substrate, an electrode and a surface coat layer. The rear substrate is structured with a lamination having a substrate, an electrode and a surface coat layer. The electrode on the front substrate is connected to the voltage applying unit while the voltage applying unit is connected to the control unit. The control unit controls the voltage applying unit to apply to the electrodes of the substrates an alternating voltage at a frequency of from 20 Hz to 20 kHz.
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:
An image display device is provided. The image display device has: an image display medium where charged particle groups are sealed between a pair of substrates at least one of which has translucency and which are opposed to each other with a space therebetween, and display density is changed by transfer of the charged particle groups between the pair of substrates according to an electric field formed by a voltage applied between the substrates; a temperature measuring unit that measures a temperature of the image display medium; a voltage applying unit that applies, between the substrates, a driving voltage according to the temperature of the image display medium measured by the temperature measuring unit, based on a predetermined voltage applying condition corresponding to the temperature of the image display medium, in order to display an image with predetermined display density on the image display medium.
摘要:
An image display apparatus has an image display medium and a voltage applying section. The image display medium has a top-plane substrate and a back-plane substrate. The top-plane substrate has a transparent display-side electrode whose entire surface is uniform, formed on a transparent substrate. The back-plane substrate has an inner electrode and an outer electrode, formed on a substrate. Conductive colored particles, whose color is different from a color of the inner electrode, are enclosed between the top-plane substrate and the back-plane substrate. The voltage applying section has a DC power source, a first switch, a second switch, and a control unit. When the color of the inner electrode is displayed, the control unit controls the first switch such that the inner electrode is connected to the DC power source, and controls the second switch such that the outer electrode is grounded. Then, the colored particles move reciprocally and move to the outer electrode.
摘要:
A back board has a spacing member having elasticity larger than that of a spacing member formed on a display board, and the spacing member of the back board is joined with the spacing member formed on the display board. Cells are formed between the display board and the back board, and black particles and white particles which are moved by an applied electric field are sealed into the cells. Even when there is variance in heights of the spacing members on the display board and the back board, the spacing member on the back board side is elastically deformed so as to absorb the variance. As a result, the spacing member on the display board is brought into close contact with the spacing member on the back board with certainty, so that the particles sealed into the cells can be prevented from moving between the cells.
摘要:
A plurality of cells are set apart by a spacer member between a display plate and a rear face plate. Black particles with positive static charge and white particles with negative static charge are dispersed in a dispersion fluid, which is enclosed in the cells. A red colored layer and electrodes 7a, 7b and 7c are formed at the rear face plate. When a voltage of +50 V is applied to the electrode 7a, 0 V to 7b and −50 V to 7c, the black particles move to the electrode 7c, the white particles move to the electrode 7a, and red can be viewed. When a voltage of +50 V is applied to the electrode 7a, 0 V to 7b and +50 V to 7c, the white particles move to the electrode 7a, the black particles move to the electrode 7b, and black can be viewed. When a voltage of −50 V is applied to the electrode 7a, 0 V to 7b and −50 V to 7c, the black particles move to the electrode 7c, the white particles move to the electrode 7b, and white can be viewed.
摘要:
An image display medium which implements multi-color display with a small number of kinds of particles and avoids a reduction in resolution of images, and an image writing device. The image display medium has a structure with a transparent display substrate, a colored back substrate, a spacer for constantly maintaining inter-substrate space, and white particles and black particles. The image display device is provided with the image display medium, an electrode head and a voltage application section. The electrode head implements monochrome display by moving the white particles and the black particles one to the display substrate side and the other to the back substrate side, by applying dc voltages between the substrates. When multi-color display is to be implemented, the electrode head applies ac voltages between the substrates and moves the particles to peripheries of portions so as to expose the back substrate at those portions.