Plasma display panel and method for production thereof

Abstract

A plasma display panel production method is provided for producing a plasma display panel including a first substrate, a second substrate opposed to the first substrate, a barrier rib partitioning a space defined between the first and second substrates into a plurality of discharge spaces, and a seal frit portion provided between peripheral inner surface portions of the first and second substrates to seal the first and second substrates. The method comprises the steps of: forming a seal frit portion on one of the first and second substrates, and forming a barrier rib on the second substrate; combining the first substrate and the second substrate with a spacer of the same material as the seal frit portion being provided between the first substrate and a top of the barrier rib; pressing peripheral portions of the first and the second substrates from outside by a pressing member; heating the first and second substrates to a temperature not lower than a softening temperature of the seal frit portion while evacuating the space defined between the first and second substrates; and introducing a discharge gas into the space defined between the first and second substrates after the evacuating step.

Description

technical field [0001] The present invention relates to a plasma display panel and a manufacturing method thereof, and in particular to a plasma display panel (hereinafter referred to as PDP) used in display devices such as personal computers and workstations, flat-panel televisions, displays for displaying advertisements and information, etc. . Background technique [0002] At present, generally commercialized PDPs are AC type surface discharge type. In the surface discharge type, in the display discharge of the main discharge, first and second display electrodes serving as cathodes and anodes are simultaneously arranged in parallel planes on the front side or the back side substrate. In the surface discharge type, the phosphor layer for color display can be arranged away from the display electrode pair in the thickness direction of the panel, thereby reducing deterioration of the phosphor layer due to ion impact during discharge. Therefore, the surface discharge type has...

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Problems solved by technology

[0006] However, in PDP, the exhaust efficiency in the process of sealing and exhausting the panel during manufacture has a great influence on the electrical characteristics of the panel

That is, if the impurity inside the panel is not sufficiently removed during exhausting, a decrease in luminance due to deterioration of the phosphor, a fluctuation in the discharge voltage, or a luminous streak in the panel due to the fluctuation in the discharge voltage are likely to occur. Wait

In particular, in the center of the panel, the conductance of the exhaust gas becomes smaller, and the discharge of impurities becomes more difficult. Therefore, for PDP, it can be considered that the panel will be further developed with the increase in size and high definition. Insufficient discharge of impurities

In addition, in the case of a PDP with a BOX cell structure capable of achieving high luminous efficiency, its exhaust capacity is naturally smaller than that of a PDP with a simple stripe-shaped partition wall, and it is generally difficult to secure a large exhaust path.

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