Abstract:
Lead is an undesirable element to have present in display panels during the manufacturing process. In addition, the use of lead-bearing glasses presents a potential environmental and personal health problem. A composition for a dielectric ink (50) used in a screening process according to the present invention includes a lead-free glass frit binder, silica and a vehicle. The dielectric composition is particularly suited for use in gas plasma display panels (10). The composition is formulated to provide a multilayer dielectric coating to isolate layers of conductor runs (120) and a mask dielectric coating to provide a low-cost lead-free glass, black insulation layer between conductor runs and the gas plasma.
Abstract:
A reflective display is formed using two orthogonal fiber arrays and an electro-optic material. The bottom fibers contain plasma channels, used to address the electro-optic material. Wire electrodes built into the fibers address both the plasma and the electro-optic material. The fibers are composed of glass, plastic or a combination of glass and plastic. Color is imparted into the display using colored fibers, adding a color coating to the surface of the fibers, or adding the color to the electro-optic material. The electro-optic material consists of a liquid crystal material, electrophoretic material, bichromal sphere material, electrochromic material, or any electro-optic material that can serve to create a reflective display. Another possible reflective display is formed using an array of hollow tubes filled with an electrophoretic material sandwiched between two plates.
Abstract:
A gas-filled display panel (10) comprising a glass base plate (20) and a glass face plate (30) hermetically sealed together along a perimeter seal area to form an envelope which is filled with an ionizable gas, the base plate (20) having an array of longitudinal slots (40) in which anode wires (50) are seated and having an array of cathode electrodes (60) on the top surface (22) thereof. The base plate (20) has cross grooves (66, 68) transverse to the slots (40) and positioned one near each end of the base plate (20), and a glass rod (160) is secured in each cross groove (66, 68) with the ends of each rod (160) lying within the seal area between the base plate (20) and the face plate (30), the top surface of each insulating member (73) being generally coplanar with the top surface (22) of the base plate (20) in the seal area, to insure the formation of a hermetic seal between the base plate (20) and the face plate (30) at the cross grooves (66, 68).
Abstract:
A method of fabricating micro-plasma discharge devices (90) and arrays. The method employs techniques drawn from semiconductor device fabrication, such as chemical processing and photolithography, to produce arrays of devices inexpensively. An interdigitated electrode array (16, 18) is deposited on a first substrate (14). Cavities are formed in a second substrate (34) by laser micromachining, etching or by chemical (wet or dry) etching and the second substrate (34) is overlaid on the electrode array. The inter-electrode spacing and electrode width are set so that each cavity has at least one pair of electrodes underneath it to excite a micro-plasma discharge in the cavity. The need to precisely register the two substrates are thus avoided.
Abstract:
The present invention is concerned with a display panel having display cells, each of which is discharged to glow by means of paired cell-by-cell common electrodes and a discrete electrode, set in array, and a driving method for the display panel. An object of the present invention is to decrease the number of discrete contacts linked to the discrete electrodes so that the display cells can be driven discretely. Another object thereof is to define time domains, during which a plurality of common electrodes is controlled, within the period of a unit sequence so that the display cells can be driven discretely. A display panel has common electrodes, a plurality of cell-by-cell common electrodes, and discrete electrodes. The common electrodes are extending in columns on a transparent substrate. The cell-by-cell common electrodes are extending in rows from the common electrodes. The discrete electrodes are located among the adjoining cell-by-cell common electrodes on the transparent substrate. Display cells each of which is discharged to glow by means of paired cell-by-cell common electrodes and a discrete electrode are arranged in the display panel. According to a driving method for the display panel, the cell-by-cell common electrodes are interposed between the plurality of adjoining common electrodes. The discrete electrodes are located successively over display cells adjoining in rows. Time domains are determined during which display pulses are applied sequentially to the plurality of common electrodes. A unit sequence is completed over the time domains. Discharge control pulses are applied to the discrete electrodes. Thus, the display cells are lit or unlit.
Abstract:
In a plasma display discharge tube in which an XY matrix electrode is constituted by arranging pluralities of stripe-like anodes (11) and stripe-like cathodes (9) at prescribed intervals so that they can cross each other and by using the space formed by each of intersection as a picture element, and which is made to display a picture by selectively exciting the picture elements in accordance with the picture, an AC type memory electrode (1) which is opposed to the XY matrix electrodes (9 and 11) and commonly used by all picture elements, and an AC type auxiliary electrode (5) which is brought into contact with the electrode (1) through an insulating layer and supplies electric power by utilizing the coupling capacitance formed between the electrodes (1 and 5) are provided so that memory discharge display can be made between the matrix electrodes (9 and 11) and the memory electrode (1). When the discharge tube is constituted in such a way as described above, the discharge tube can have a simplified electrode structure, can be manufactured through a reduced manufacturing process, can be driven by using the pulse memory type driving method which has been considered to be realized only in DC plasma display discharge tubes having high luminous efficacy and responsiveness, and can be provided with AC type electrodes having long service lives.
Abstract:
Bei einer Anordnung zur Erzeugung von Feldemission an einem Element, das aus einer elektrisch isolierenden Platte (1), einer ersten Elektrode (2), einer Isolierschicht (3) und einer zweiten Elektrode (4) besteht, werden den Kanten der zweiten Elektrode (4) kleine metallische Inseln (5) vorgelagert. Vorzugsweise bestehen die Inseln (5) aus dem Elektrodenmaterial.