OLED screen punching method

Abstract

The invention discloses an OLED screen punching method, which comprises the steps of forming a backboard layer, and forming a light absorption layer on the backboard layer, wherein the light absorption layer is specifically arranged in a punching area; forming an OLED layer on the backboard layer, wherein the OLED layer covers the light absorption layer; illuminating the OLED layer until the OLEDlayer arranged above the light absorption layer is evaporated; and conducting cutting and drilling in the punching area. According to the technical scheme provided by the embodiment of the invention,the light absorption layer is arranged at the punching position, the OLED layer material in the screen punching area is removed through illumination, the periphery of the punching area is covered by the light absorption layer, so that the water and oxygen permeation path of the punching area is blocked through the light absorption layer, oxygen or moisture cannot enter or spread through the OLED layer, the condition of component failure does not occur, and the punching scheme is simple to operate and relatively low in cost.

Description

technical field [0001] The invention generally relates to the field of display, and in particular to a method for punching holes in an OLED screen. Background technique [0002] In the past two years, the development of full-screen screens has been booming, and the pursuit of higher and higher screen-to-body ratios requires solving the problem of setting up the front camera. This design is Sharp's beauty point. Nowadays, the emergence of under-screen fingerprint technology and earpiece hidden design has made the full-screen technology more mature, and the water drop screen has emerged as the times require, so hiding the camera has become the last problem. [0003] The mainstream solution for the under-display camera is to dig holes in the display function area to place the camera. However, when openings are set in the function area, it is difficult to pattern finely because the organic light-emitting layer and other layers are tiled on the entire surface. These layers will...

AI Technical Summary

Problems solved by technology

[0003] The mainstream solution for the under-display camera is to dig holes in the display functional area to place the camera. However, when the functional area is provided with holes, it is difficult to pattern finely because the organic light-emitting layer and other layers are tiled on the entire surface. These layers will become the introduction path of oxygen or moisture or the propagation path of fine cracks, resulting in component failure, so a solution is required

A common solution is laser ablation, but this solution requires sophisticated laser system equipment and requires a large investment

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