Printing and forming method of fluorescent powder layer of plasma display

Abstract

A printing and forming method of a phosphor of a plasma display belongs to the technical field of a flat television; a screen printing plate of the method is characterized in that the size of total effective printed image is half of that of the effective printed image of an aperture mask or a back placode, and the number of columns of through holes on the screen printing plate is corresponding tothat of one sub-pixel on a printing stock. When printing, the marks of the screen printing plate are aligned with those of the printing stocks; a half of the printing stock is firstly printed, after that, the marks of the screen printing plate are aligned with those at the right side of the printing stocks, and the other part of the printing stock is printed, so that the screen printing plate with smaller size can be utilized to print fluorescent powder sizing agent of the plasma display with larger size. At the same time, the screen printing plate designed by the method adopts domestic screen printing plate with smaller specification and much lower cost, compared with the imported screen printing plate with larger size, thus effectively controlling the printing error caused by the deformed size.

Description

technical field [0001] The present invention relates to a plasma display manufacturing technology, in particular to a method for printing fluorescent powder in a plasma display, and more specifically to a method for forming a plasma display on a large-size plasma display by using a domestic high-precision small-size screen plate A method for printing and forming a phosphor layer. Background technique [0002] The display principle of the plasma display is to use the ultraviolet rays generated by the discharge of the rare mixed gas to excite the three primary color phosphors of red, green and blue to emit light. The structure of the forming part of the phosphor in the plasma display has a traditional barrier type and a new type of shadow mask. In terms of unit structure, the barrier type is divided into Waffle, fence type, curved barrier and asymmetric structure, while the shadow mask type is divided into △-shaped distribution structure and strip structure. It is an effecti...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the current situation that the size of the domestic high-precision printing screen is limited to within 1.1 meters × 1.1 meters, and it is impossible to realize the current situation of large-scale plasma display phosphor printing. In order to reduce costs and speed up research and development, a method using Existing domestic high-precision printing screen to realize a method for printing and forming phosphor powder of large-scale plasma display

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