A kind of manufacturing method and device of oled display panel

Abstract

The present invention provides a method and device for manufacturing an OLED display panel. The device includes a chamber for accommodating and heating an OLED plywood, wherein the OLED plywood located in the chamber includes a substrate and an opposite package. A cover plate, and the substrate and the packaging cover plate are bonded by glass glue and UV glue; a transparent pressing plate is located in the cavity for pressing the OLED plywood encapsulated by the UV glue , wherein, the transparent pressing plate includes a first transparent pressing plate and a second transparent pressing plate opposite to each other; the laser head is located in the chamber and is located on the first transparent pressing plate on one side of the packaging cover Above, the laser head uses the emitted laser beam to irradiate the raised position of the starting point of the glass glue; to solve the technical problem of poor airtightness of the glass glue-packaged OLED display panel in the prior art.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method and device for manufacturing an OLED display panel. Background technique [0002] OLED display is a new generation of display. By making an organic film on an OLED substrate, the organic film is sandwiched between the cathode and anode metal or conductive layers, and the organic film will emit light when a voltage is applied to the two electrodes. Compared with liquid crystal displays, OLED displays have many advantages such as self-illumination, fast response, wide viewing angle, and saturated colors. [0003] The water and oxygen in the air will oxidize the active metal of the cathode of the OLED device and chemically react with the organic material, which will cause the OLED device to fail. Therefore, effective encapsulation of OLED devices to fully isolate OLED devices from water and oxygen is crucial to prolonging the lifetime of OLED devices. At present, OLED en...

AI Technical Summary

Problems solved by technology

[0005] like Figure 2a As shown, during the laser scanning process, because a circle of UV glue 204 around the cover plate 202 has been cured, even when the laser scans, the frit glue 203 will melt and then solidify, but the cured UV glue 204 will always fix this state of being unable to fit tightly, so the frit glue 203 cannot be tightly adhered to the cover plate 202 and the substrate 201 after laser scanning and curing, and there will still be a gap between the two In this way, after cutting off the surrounding UV glue 204, the OLED display panel obtained by the frit glue 203 package will have poor airtightness, and water and oxygen in the air will enter the inside of the OLED device from the gap, resulting in package failure

[0006] To sum up, in the prior art OLED display panel manufacturing method and device, in the process of softening and re-curing the bulge at the starting point of the glass glue, because the UV glue around the glass glue has been cured, it will always remain This fixed state that cannot fit tightly, resulting in the N 2 Under the environment, the cover plate and the substrate cannot be tightly bonded on the raised side, resulting in poor airtightness of the OLED display panel, which in turn affects the packaging effect

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