Abstract: An image formation apparatus is provided that carries out printing efficiently to improve the printout speed. In the ink jet printer, a straight line formed of dots ejected from a large diameter nozzle and a straight line formed of dots ejected from a small diameter nozzle can have a similar configuration. By the continuous output of two dots from the small diameter nozzle, a combination of these dots are substantially equal to dots ejected from the large diameter nozzle.

Abstract: An image formation apparatus is provided that carries out printing efficiently to improve the printout speed. In the ink jet printer, a straight line formed of dots output from a nozzle of a large diameter and a straight line formed of dots output from a nozzle of a small diameter can have a similar configuration. By the continuous output of two dots from the nozzle of a small diameter, a combination of these dots are substantially equal to dots output from the nozzle of the large diameter in appearance.

Abstract: An image information display device, such as an electronic book, that displays contents stored in a recording medium on a first screen and a second screen in which liquid crystal is used. The device includes means for paging through image information and means for screen selection. The means for screen selection is used to select a two-screen mode in which the contents are displayed on both the first and second screens or a one-screen mode in which an image is displayed on either of the screens. By selecting the one-screen mode, energy consumption may be reduced.

Abstract: An information display device can be structured as an electronic book which has a first screen and a second screen made of liquid crystal with a memory effect. A dry battery can be used as its power source section. The remaining electric power of the battery is detected by measuring the voltage, and immediately before the remaining electric power becomes a minimum voltage necessary for erasure of the screens, the first and second screens are reset so that the images displayed thereon can be erased.

Abstract: An ink jet printer includes heads for jetting ink of yellow, magenta, cyan and black, and a head for jetting ink lower in tone than the aforementioned ink. The voltage applied to a head can be changed to change the size of a dot to be printed. Tone control can be provided depending on the tone of ink and dot size to improve image quality.

Abstract: The present invention relates to an ink jet recording apparatus using an electrostatic actuator. The present invention provides an ink jet recording apparatus comprising a resilient oscillating plate that is facing a pressure chamber that communicates with a nozzle, a first electrode provided on said oscillating plate, a second electrode opposing said first electrode across a space, and a voltage application unit that applies across the first electrode and the second electrode a first voltage that causes the ink in said pressure chamber to be ejected and a second voltage that does not cause the ink to be ejected, wherein said second voltage is applied a specified time prior to the application of the first voltage, so that the residual electrical charges on the first electrode and/or the second electrode can be positively discharged.

Abstract: An electronic information distribution system that includes at least one server and a user display terminal. The server and the display terminal cooperate in the transfer, the management, and the display of display information, such management techniques including: efficient storage of display information, allocation of display information for initial and subsequent presentations, and distribution of display information from the at least one server.

Abstract: An ink-jet recording head (1) comprises a first head portion (10) and a second head portion (20). The head portion has a plate (2) which includes an ink cavity (11,21) for receiving a ink material and a nozzle (14,24) fluidly communicated with ink cavity for ejecting the ink material. A piezoelectric actuator (15,25) which deforms to pressurize the ink material to eject the same through the nozzle when a voltage is applied to he piezoelectric actuator. In addition, both sizes of the ink cavity and associated piezoelectric actuator in the first head portion are different from those in the second head portion.

Abstract: A plurality of information memories for storing information relating to a various types of functions separately for each function, the plurality of information memories including information memories updateable by input from a communicaiton interface, e.g., memory chips 20-1, 20-2, 20-3, 20-4, and an updater such as a CPU 10 for updating the information, display, and display controller for displaying a composite image on the display 11 based on information relating to various types of functions, and specific formats. A display which has memory function such as a Chiral Nematic liquid crystal may be used as the display 11.

Abstract: A piezoelectric member includes a flat part and a plurality of convex parts on the flat part, and at least a part of each convex part is a piezoelectric element. A non-piezoelectric member is made of non-piezoelectric materials, and includes a plurality of concave parts corresponding to the piezoelectric elements and a convex part formed between adjacent concave parts. The piezoelectric member and the non-piezoelectric member are engaged with each other by inserting each non-piezoelectric convex part between adjacent piezoelectric elements and an ink cavity is formed between a bottom surface of each concave part and a top surface of each piezoelectric element. Also between a side of the piezoelectric convex part and a side of the non-piezoelectric concave part is provided a space, and the space is filled with a filler.

Abstract: A first panel element and a second panel element, each having at least one display layer, are positioned and opposed to each other. The elements are progressively adhered from a staring position with an adhesive material supplied beforehand. Examples of the adhesive material include those which are in a liquid state before curing (such as photo-curing adhesive materials), and also include adhesive sheets. The adhesive material having fluidity can be spread between the two panel elements in the adhering step.

Abstract: An ink jet printer includes a piezoelectric element, and a voltage generation device for applying a voltage to the piezoelectric element. The voltage generation device applies a pulse voltage having a rising edge, a constant amplitude holding portion, and a falling edge for driving a piezoelectric element, whereby ink dots of a plurality of diameters are printed out to reproduce a half tone image. The waveform of the pulse voltage has the voltage boosted more gentle as the pulse amplitude becomes greater. The sudden strain of a piezoelectric element is prevented. An ink droplet of a particularly great diameter can be sprayed out stably. The conventionally encountered satellite dot, dot split noise, and ink hit position offset are prevented.

Abstract: A multi-layer display panel having first, second and third panel elements layered together. Each of the panel elements has first and second substrates opposed to each other. The first, second and third panel elements are overlaid together to locate the first substrate of the first panel element, the second substrate of the first panel element, the second substrate of the second panel element, the first substrate of the second panel element, the first substrate of the third panel element and the second substrate of the third panel element in this order.

Abstract: An ink jet head for a printer wherein an ink drop is ejected from a nozzle to fly and land on the recording paper to form an image. The ink jet head includes the nozzle for ejecting ink, an ink channel that communicates with the nozzle, a pair of oscillating plates that are opposing to each other on walls of the ink channel, a pair of electrodes disposed in contact with the oscillating plates, an ink chamber for holding the ink, and an inlet for supplying the ink from the ink chamber to the ink channel. A gap between the electrodes is filled with the ink having a relative dielectric constant higher than air. A voltage is applied between the electrodes.

Abstract: A content delivering system comprising a host server for receiving therein a plurality of individual contents and corresponding display conditions; a transit server for receiving and storing the plurality of individual contents; and a plurality of display terminals for receiving and displaying the individual contents delivered from the transit server, wherein the transit server assigns and timely delivers the plurality of individual contents to an appropriate display terminal according to the corresponding display data conditions. Additionally, the display data may be selected based on vacancy data or potential viewership data.

Abstract: An ink-jet recording device (1) comprises a first wall member or partition (24a) adjacent to an ink material (38a) and a second wall member or partition (24b) adjacent to an ink material (38b). An elasticity of the first wall member (24a) is different from that of the second wall member (24b). Arranged adjacent to the first and second wall members (24a, 24b) are first and second piezoelectric members (34), respectively. Once the piezoelectric members (34) are biased, they deform to force the adjacent ink materials through the wall members (24a,24b), ejecting ink droplets of different sizes. This ensures the ink-jet recording head to print a halftone image with a high gradation.

Abstract: A display device which has a liquid crystal display which has a plurality liquid crystal pixels arranged in a matrix and which writes an image thereon after resetting the liquid crystal. The method of writing on the liquid crystal display can be selected from driving methods according to interlace scanning in which a frame is divided into a plurality of fields and writing by interlace scanning is performed and driving methods according to sequential scanning in which scanning lines are subjected to writing serially. When high-speed writing is required, for example, when display of a motion picture, display of inputted letters or scroll display is desired, one of the driving methods according to interlace scanning is selected. In interlace scanning, based on the end of a blackout state of a scanning line in a field, selection of a scanning line in the next field for writing is started.

Abstract: A piezo-electric actuator is rigidly mounted for a portion of one surface and provided with opposing electrodes for application of a bias. Because the mounted portion is constrained from deformation, the piezo-electric actuator deforms in a bending manner upon application of a bias. The actuator is provided with a mirror surface for selective reflection of an incident light beam in accordance with a bending deformation of the actuator. The actuator can also modulate a light beam by selectably deflecting into the light path to thereby block the light beam.

Abstract: An inkjet printing apparatus having a print head and a control system to control the discharge of variable size ink drops from the print head. The control system for printing half-tone images applies pulse voltages of varying waveforms to the print head to control the volume of ink discharged, thereby controlling the diameter of a printed ink dot on a receiving print medium.

Abstract: An inkjet printer according to the present invention records images by expelling ink droplets by applying a pulse voltage to a piezoelectric element for driving the same. In the inkjet printer, the waveform of a pulse voltage applied to the piezoelectric element consists of a rising portion of voltage having a first inclination relative to time and a failing portion having a second inclination. As a result, an inkjet printer permitting the picture quality to be improved can be provided.