| 摘要 |
PROBLEM TO BE SOLVED: To achieve higher definition through a further reduction in row pitch by preventing a decrease in the accuracy of positioning barrier ribs on a back substrate and positioning marks. SOLUTION: The barrier ribs 4 and the positioning marks 5 are formed at the same time so as to reduce errors in the dimensional accuracies of the barrier ribs 4 and the positioning marks 5. The positioning marks 5 formed at the same time as the barrier ribs 4 on the back base 1 enable a reduction in the distance between the positioning mark 5 and another positioning mark 7 on a front base 2, that is, a distance in thickness direction of the PDP(plasma display panel), and the need for adjusting the focus of a positioning mark microscope to the positioning mark 7 on the front substrate 2 and to the positioning mark 5 on the back substrate 1, as would be required with a positioning device for the front substrate 2 on the back substrate 1, is eliminated whereby the accuracy of positioning can be enhanced. Also, the positioning device for the front substrate 2 and the back substrate 1 can be simplified.
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