COB module and manufacturing method thereof

Abstract

The application discloses a COB module and a manufacturing method thereof. The manufacturing method comprises the following steps: carrying out dispensing treatment on a bottom shell; assembling a plurality of COB lamp panels and the bottom shell subjected to adhesive dispensing; arranging the multiple COB lamp panels and the bottom shell subjected to dispensing in closed space through a pressingdevice; and carrying out vacuumizing treatment on the closed space and thus pressing the bottom shell and the multiple COB lamp panels into one. According to the application, the COB lamp panel and the bottom shell are connected in an adhesive mode and thus the flatness of the light-emitting face of the COB lamp panel and the flatness between the COB modules can be guaranteed, so that the COB modules are prevented from generating inclination angles, accordingly, bright and dark lines are prevented from being generated, the display uniformity is improved; besides, a screw fixing mode is omitted, copper columns do not need to be welded to the COB lamp panel, the welding time is shortened, and the manufacturing efficiency is improved.

Description

technical field [0001] The present application relates to the technical field of LED display screens, in particular to a COB module and a manufacturing method thereof. Background technique [0002] At present, the light board and the bottom case are connected by locking screws, but the thickness of the light board may be different, the light board is not on the same plane, there will be an oblique angle, and there will be obvious bright and dark lines when viewing. In order to ensure that each small light panel in a single LED module has no obvious height difference, it is necessary to select the thickness of the module, which will increase the man-hours of selection, and it is also unavoidable to avoid the height difference of the light-emitting surface between the LED modules. [0003] In addition, the copper pillars used to lock the screws on the light board are manually welded, and the copper pillars are welded crookedly, which increases the risk of height differences be...

AI Technical Summary

Problems solved by technology

[0002] At present, the light board and the bottom case are connected by locking screws, but the thickness of the light board may be different, the light board is not on the same plane, there will be an inclination angle, and there will be obvious bright and dark lines when viewing

In order to ensure that each small light panel in a single LED module has no obvious height difference, it is necessary to select the thickness of the module, which will increase the man-hours of selection, and it is also unavoidable to avoid the height difference of the light-emitting surface between the LED modules

[0003] In addition, the copper pillars used to lock the screws on the light board are manually welded, and there are cases where the copper pillars are welded crookedly, which increases the risk of height differences between modules and internal modules.

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