Abstract:
A plasma display device is realized which has a high set-luminous-efficacy (i.e. provides a high-brightness display image at a low power consumption) and a high light-room contrast. The luminous efficacy hs and the display discharge voltage Vs are increased by increasing the product pd in discharge, or increasing the Xe proportion aXe of the discharge. As a result the display-discharge region area ratio Ad and the display region reflectance β can be reduced by reducing the display-electrode area Sse approximately in inverse proportion to Vs2, and thereby the set-luminous efficacy hs and the set luminance Bpons and the light-room contrast Cb are increased.
Abstract:
The plasma display apparatus, in which the light emission efficiency is improved, has been disclosed. The fourth electrodes, which extend in the same direction of the first electrodes (X electrode) and the second electrodes (Y electrodes) and are exposed into the discharge space, are provided between the first and the second electrodes where the sustaining discharge is carried out, and when the sustain action is carried out, the fixed voltage between the voltage applied to the first electrode and that applied to the second electrode is applied to the fourth electrode provided between the first and the second electrodes where the sustain action is carried out in order to make the electric field between the first and the second electrodes uniform.
Abstract:
A plasma display includes first and second transparent substrates disposed facing each other, a plurality of partitions formed between the first and second transparent substrates, a phosphor formed on inner surfaces of discharge cells defined by the partitions, a stepped buffering layer formed on the first transparent substrate between a one-end portions of the partitions, and a plurality of address electrodes formed on the first transparent substrate between the partitions and on the stepped buffering layer. A thickness of the stepped buffering layer is gradually increased in a longitudinal direction of the partition.
Abstract:
A plurality of row electrodes and a plurality of column electrodes are provided so as to intersect with each other to form a pixel at every intersection. A phosphor layer is provided along each of the column electrodes. The phosphor layer is disposed so that three unit luminous areas of red, green and blue are provided in each pixel. Three phosphor layers for a first pixel on a display line are disposed in order of red, green and blue, and three phosphor layers for a second pixel adjacent the first pixel are disposed in order of blue, green and red.
Abstract:
A plasma display panel and driving method thereof perform addressing at a high speed and a low voltage without deteriorating contrast. Priming electrodes forming priming cells are located outside but adjacent a display area. Glow occurring in the priming cells is intercepted. When priming discharge is induced at a reset step, voltages lower than a discharge start voltage are applied to first (X) and second (Y) electrodes and third (address) electrodes respectively. Despite the voltages being lower than the discharge start voltage, once discharge is induced in the priming cells, discharge starts in adjoining cells. The discharge then spreads successively over all the cells, thus inducing discharge in all the cells. Consequently, wall charge is produced in all the cells.
Abstract:
Disclosed is a method for producing a patterned calcined inorganic film such as an electroconducting or insulating (non-conductive) film, particularly a plasma display panel, embracing a calcining step. To produce a patterned calcined inorganic film without inducing warpage, shrinkage of line width, or breakage of patterned lines, a patterned film formed on a substrate with a composition containing a heat decomposable binder and particles of an inorganic material is covered, prior to the calcining step, with a coating film of a heat decomposable resin composition capable of hardening or drying at a temperature lower than the temperature at which the heat decomposable binder is thermally decomposed and further capable of being burned off below the highest temperature of the calcining profile and thereafter the calcining step is performed.
Abstract:
A display cell has an upper substrate joined to an intermediate substrate with a specific gap put therebetween; an optoelectric material kept in the gap, and signal electrodes formed on the upper substrate in rows to which are applied image signals. A plasma cell has a lower substrate joined to the intermediate substrate with a specific gap put therebetween for forming an enclosed space, an ionizable gas which fills the enclosed space, and scanning electrodes formed on the lower substrate in columns to generate a plasma discharge. The scanning electrodes are scanned in sequence to write image signals applied to the signal electrodes in the optoelectric material. The gas for generating plasma discharge is composed of a mixture containing an inert component such as Kr or Xe as a main component and a hydrogen component. The inert gas changes, when electric discharging is started, from the ground state to the excited state, and changes, when the electric discharging is stopped, from the excited state to the ground state while being partially kept in a metastable state for a short time. The hydrogen component acts to quickly quench the metastable state of the inert element to accelerate the decay of the electric discharge, thereby making the sequential scanning of the scanning electrodes faster.
Abstract:
A plasma display device which is capable of solving the problem of a trade-off between the increase in recovery efficiency of reactive power resulting from charging and discharging of a plasma display panel serving as a capacitive load and the adverse effects upon a gas discharge characteristic in the plasma display panel is provided. First and second sustain pulses are applied respectively to first and second electrodes (X, Y1-Yn) arranged in parallel in pairs for respective display lines so that the output time periods of the first and second sustain pulses partially overlap each other on the time axis. One of the first and second sustain pulses which rises earlier has a higher rate of voltage change at the rising and falling edges than does the other.
Abstract:
In a method of fabricating separator walls in a shape of stripes in a plan view to divide a discharge space of a plasma display panel, dried films of a predetermined height, each film being formed of a material formed of solid particles bonded with a binding agent in a shape of stripe that peters out in a plan view along longitudinal direction at the longitudinal end of the stripe is formed on a substrate; and the dried films are heated so as to burn out the binding agent as well as to melt the solid particles to stick firmly to each other.
Abstract:
An electrode for a plasma display panel (PDP) in which an electrode having a high adhesive power is formed on a glass substrate of a color plasma display panel and a method for forming the same. The electrode for the PDP includes a metal ceramic thin film formed between a metal electrode and a dielectric substrate. The method includes steps of forming a metal ceramic thin film on a predetermined portion of the dielectric substrate and forming an electrode having the same metal element as the metal ceramic thin film on the metal ceramic thin film.