A cob module and its manufacturing method

Abstract

The application discloses a COB module and a manufacturing method thereof. The manufacturing method includes: dispensing glue on the bottom shell; assembling a plurality of COB lamp panels with the glued bottom shell; The COB lamp panel and the bottom shell that has been glued are arranged in a closed space; the closed space is vacuumized to press the bottom shell and a plurality of the COB lamp panels into shape. In this application, glue is used to connect the COB lamp board and the bottom shell, which can ensure the flatness of the light-emitting surface of the COB lamp board and the flatness between the COB modules, and avoid the inclination angle of the COB module, thereby avoiding Bright and dark lines improve the uniformity of the display. On the other hand, the screw fixing method is canceled, and there is no need to weld copper pillars on the COB light board, which reduces welding hours and improves production efficiency.

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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