Pasting strip for sealing upper substrate and lower substrate of plasma display panel and sealing method thereby

Abstract

The invention discloses a pasting strip for sealing an upper substrate and a lower substrate of a plasma display panel and a sealing method thereby; wherein, the sealing method comprises the following steps: cutting a pasting strip to obtain a pasting strip of a desired size; applying the pasting strip of the desired size to corresponding positions on the upper substrate and / or the lower substrate of the plasma display panel needing to be sealed; aligning the upper substrate and the lower substrate of the plasma display panel; and sintering the upper substrate and the lower substrate of the plasma display panel to seal the upper substrate and the lower substrate of the plasma display panel together. The pasting strip and the sealing method can help simplify process and improve the yield.

Description

technical field [0001] The invention relates to the technical field of gas discharge, and more specifically relates to a sticking strip for sealing upper and lower substrates of a plasma display screen and a sealing method using the same. Background technique [0002] The current general-purpose AC gas discharge plasma display screens all adopt a surface discharge structure, including a front substrate and a rear substrate sealed together with it. Wherein, a transparent electrode (ITO) and a bus electrode are arranged on the front substrate, and the transparent electrode and the bus electrode constitute a discharge electrode, and the discharge electrode includes a sustain discharge electrode X and a scan / sustain discharge electrode Y, and a dielectric layer is covered on the surface of the discharge electrode , the dielectric layer is covered with a layer of dielectric protection layer. Addressing electrodes perpendicular to the discharge electrodes are arranged on the rear...

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Problems solved by technology

[0003] When sealing, it is necessary to carry out the proportioning of low-melting glass paste (300g of dry low-glass powder and 25±2g of isoamyl acetate), injection of slurry into the coating cylinder, adjustment of the lower substrate on the coating table, coating on four sides, Coating of low-melting point glass around the vent hole, standing still until the low glass line is dried, repairing the four corners, drying with a special drying oven, and inspection with an appearance inspection machine are very cumbersome and require Under the conditions of temperature 22~23℃, humidity 55±5%RH, and cleanliness level 1000, the measurement of low glass line height (coating height requirement 400+10% / -5%um) is carried out. The whole process uses a lot of equipment and is accurate The degree requirements are high, and it is easy to produce bad

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