Method for producing planar type light-emitting display panels

Abstract

The manufacturing method of the planar light-emitting display panel of the present invention comprises the following steps: using a planar panel provided with an opening at a position corresponding to the needle electrode, pressing the back panel on the front panel so that the two panels are in a bonded state, In this state, the sintered glass is applied to the needle electrode and dried, and after the two plates are temporarily fixed, the flat plate is removed, and the sintered glass is applied to the end of the front panel and the side surface of the rear panel. Sinter the whole. Alternatively, the step of applying fritted glass to the needle electrodes and the step of applying fritted glass to the end of the front panel and the side surfaces of the rear panel may be performed interchangeably. The frit glass coated on the side of the display panel has lower fluidity than the frit glass coated on the needle electrodes.

Description

technical field [0001] The invention relates to a manufacturing method of a flat light-emitting display panel. The method is to pull out electrodes from the back surface, and seal and fix the periphery of the display panel with sintered glass. technical background [0002] With the progress of the information society in recent years, the need for large image display tends to increase. Generally, it is technically and costly difficult to form a large image using one display unit (hereinafter referred to as a panel). Therefore, several panels are generally juxtaposed to form a large image. [0003] In this case, if the non-display area provided at the end of each panel is very large, the seams between adjacent display panels will be obvious, and the overall image display quality of the large image will also be reduced. Therefore, it is desired to develop a planar light-emitting display panel with a small non-display area of ​​each display panel and high display quality of a ...

AI Technical Summary

Problems solved by technology

[0026] However, when the sintering conditions of the sintered glass 4 are weakened, although the amount of the sintered glass 4 penetrating into the display unit can be reduced, abnormal discharge tends to occur on the needle electrodes when a voltage is applied.

This is because, in the case of weakening the sintering conditions of the fritted glass 4, the fluidity of the fritted glass 4 is lowered and cannot flow to the needle electrode sufficiently, the needle electrode is not completely covered, and the insulation is lowered, so when a voltage is applied, there is a problem. The occurrence of abnormal discharge

[0027] On the contrary, when the sintering conditions of the sintered glass 4 are strengthened (increase the temperature, prolong the time) in order to completely cover the needle electrodes, the unsatisfactory situation that the sintered glass 4 at the end of the panel will infiltrate into the display unit will occur.

That is, the coverage of the needle electrode and the infiltration of the frit glass at the edge of the panel are in an inverse relationship, and it is difficult to balance the two

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