Method for preventing plasma display from hole-filling by fluorescent powder printing

Abstract

The invention discloses a method for preventing printing hole blocking of fluorescent powder used for a plasma display, which belongs to the flat television technical field. The method is characterized in that: firstly, pattern arrangements corresponding to printing screens are preset according to the arrangement condition of shadow mask holes on a printing shadow mask to ensure that the quantity of patterns on each-color screen is equal to one third of the quantity of all the holes on the shadow mask; secondly, the patterns on each-color screen are designed into ring-shaped patterns, the dimension and the shape of which are matched with those of the shadow mask holes. The method has the advantages of simplicity and feasibility, successfully solves printing and shaping problems of fluorescent powder paste in a shadow mask type PDP, and has no color mixing and hole blocking after the printing; and a fluorescent powder layer is even and compact, and has smooth surface and high luminous efficiency.

Description

Method for Preventing Plasma Displays from Clogging Holes by Phosphor Powder Printing technical field The invention relates to a plasma display technology, in particular to a method for printing fluorescent powder for a plasma display, in particular to a method for preventing holes from being printed with fluorescent powder for a plasma display. Background technique At present, SMPDP is a new type of shadow mask type opposite discharge PDP. In its structure, the shadow mask is used to replace the barrier ribs in traditional PDP production, which saves the complicated process of making tall and narrow barrier ribs on the rear substrate, and at the same time makes the entire screen process into a combination of three independent parts; the shadow mask is a CRT It is a mature accessory in the manufacture of color picture tubes. Using the shadow mask as a barrier in this way improves the yield of the whole screen and reduces the cost. Among them, the shadow mask is made of pu...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to solve the problem that the small holes are easily blocked when the phosphor layer of the shadow mask type PDP is prepared, and to invent a method for preventing the phosphor powder printing from blocking the plasma display. On the inner wall of the mask mesh, and ensure that the small holes of the shadow mask will not be blocked

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