Abstract:
A plasma display panel and the manufacturing method thereof. Forming partition wall structures on the back substrate of the paste display panel and forming the column-shaped protrusions at the positions corresponding to the cuts on the rib on the front substrate of the plasma display panel. The manufacturing process is simple and the alignment of the front and back substrate is easy. In addition, the size of the opening of the rib and the size of the cut can be easily adjusted according to the needs of the application during the manufacturing process.
Abstract:
A manufacturing method for a gas discharge panel according to the invention can reduce the amount of water and gaseous molecules, which are absorbed into the first and the second substrates, to a minimum by keeping the both substrates under a reduced pressure, and therefore can prevent a degradation of a discharge gas filling the finished panel. As a result, problems in the finished panel such as increase in a discharge starting voltage and generation of an abnormal discharge can be suppressed.
Abstract:
An image display device is disclosed including a metallic support plate carrying, on its front face, a plasma discharge display with an array of adjacent pairs of electrodes and, on its back face, a power supply. The power supply circuit of each pair of adjacent electrodes forms a current loop starting from the power supply and passing through the electrode then the electrode of the pair, the connection end of the electrode being linked to the power supply by means of a transverse electrical conductor placed on the front side of said metallic plate. According to the invention, the transverse conductor linked to the electrode forms a non-zero angle with said pair of electrodes. The differences in inductance between the various current loops of the display are thus reduced such that the differences in luminance between the various discharge regions of the plasma display are reduced.
Abstract:
A flat-panel gas discharge display operable with either alternating or direct current includes magnetic elements within certain of the electrodes which define the discharge cell. The display may be free of implosive forces when operated at least at substantially atmospheric pressure. The display comprises a first set of conductors disposed on a transparent substrate and a second set crossing over the first set at a distance therefrom. The second set of conductors includes a magnetic core or layer whereby the second set of conductors is magnetically attracted to an array of contact points on the substrate. An array of crosspoints is formed at each location where a conductor of the second set crosses over a conductor of the first set. A gas is contained in the space between the first and second sets of conductors at each crosspoint. The gas will undergo light emissive discharge when a voltage greater than or equal to the Paschen minimum firing voltage is applied at a crosspoint. Air may be used as the operative gas. The display is formed on a single substrate. A system incorporating the flat-panel display is presented.
Abstract:
The panel has substrate (4) which has a network of barriers each incorporating electrode (6.sub.i) of a first network of electrodes for control of the panel, a periodic arrangement (R.sub.i, V.sub.i, B.sub.i) of areas of phosphorescent products being formed on substrate (4), transparent front plate (8), second network of electrodes (10.sub.j) perpendicular to electrodes (6.sub.i), an ionizable gas which is introduced between this substrate and this plate. In order to manufacture substrate (4), one forms a metallic plate which has joined preforms of electrodes (6.sub.i) of the first network, one covers the preforms with a layer of a dielectric material which is molded on it them and on the spaces separating them, and one removes the material from the metallic plate which joins the preforms of electrodes (6.sub.i), so as to electrically insulate these electrodes from one another.
Abstract:
An AC drive type display apparatus including a display panel having groups of transverse electrodes and vertical electrodes which are disposed in cross form across a discharge gap and having cross points which are made luminescent by applying an AC sustaining drive voltage, a turn-on signal and turn-off signal. A drive circuit including transistors dispoed in a matrix is provided and has means for commonly connecting the emitters or bases of the transistors in each transverse line of the matrix and means for connecting the emitters or the bases which are commonly connected, through a first diode to a sustaining drive source. A first selective switch circuit for applying the turn-on signal or the turn-off signal by selectively driving the transverse line by connecting it to the emitters or the bases which are commonly connected is provided and means are provided for commonly connecting the bases or the emitters in each vertical line of the matrix. A means for connecting the bases or the emitters which are commonly connected, through a second diode to the sustaining drive source are provided and a second selective switch circuit for selecting the vertical lines which are commonly connected is provided wherein the collectors of the transistors of the drive circuit are connected to the electrodes in one or both of the groups of the electrodes in the transverse and the vertical direction of the display panel.
Abstract:
A self shift display panel driving system in which a discharge spot produced by written information is shifted by sequential switching of an impression voltage; a stationary display of the written information by the discharge spot is provided by the application of the impression voltage to a predetermined electrode; and the shift action is effected at high speed and stabilized by the impression of a voltage higher than a sustain voltage for the stationary display.
Abstract:
A plasma display panel in which two transparent base plates are assembled together to define a discharge gas space therebetween. On each transparent base plate, a plurality of strip-like main electrodes are provided and a dielectric layer is formed to cover them and, further, third electrodes are each provided between adjacent ones of the main electrodes. The two transparent base plates are assembled together in opposing relation to each other in such a manner that their main electrodes and third electrodes are disposed substantially perpendicuar to each other in the form of a matrix. By impressing a voltage to selected ones of the main electrodes of the both transparent base plates, a discharge spot is produced at their intersecting point to provide a display. The discharge spot becomes enlarged or reduced or extends in a certain direction according to the polarity of a voltage impressed between the third electrodes of both transparent base plates and to the selection of the third electrodes to be supplied with the voltage. The discharge spot can be shifted in either direction of the row and column of the matrix.
Abstract:
Selective erasing capability is provided in a display system having a photochromic member upon which information is written by an electron beam which addresses a selected portion of a phosphor layer. Light from the addressed portion of the phosphor changes the optical density of the photochromic glass. The information is selectively erased from the photochromic member by light from a gas plasma panel having gas-filled cells. These cells emit predominantly infrared light which bleaches the photochromic glass to erase the information. The gas plasma panel is maintained at a threshold of excitation by an applied AC voltage. Specific cells are addressed by light from the phosphor layer. The electron beam selects a portion of the phosphor layer and light from this portion selectively excites the desired cell, or cells.
Abstract:
In a plasma display panel comprising a center glass plate having plurality of openings each containing luminous gas, a pair of outer glass walls on the opposite sides of the center glass plate for sealing the gas and a plurality of electrodes on the outer surfaces of the outer glass walls for exciting the luminous gas, the openings are in the form of blind openings opened on the opposite surfaces of the center glass plates and are sealed with gasses of different discharge colors, thus providing a multicolor display panel.