Manufacturing method of flexible OLED

A manufacturing method and flexible technology, applied in the field of flexible OLED manufacturing, can solve problems such as OLED failure

Active Publication Date: 2020-01-10
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a method for manufacturing a flexible OLED, which is used to solve the technical problem in the prior art that OLEDs fail due to cracks caused by film alignment tolerances

Method used

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  • Manufacturing method of flexible OLED
  • Manufacturing method of flexible OLED
  • Manufacturing method of flexible OLED

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] In the embodiment of the present invention, the flexible substrate is a bendable and non-breakable flexible substrate for making a flexible organic light-emitting diode (OrganicLight-Emitting Diode, OLED), and the flexible substrate can be polyimide (Polyimide) , PI) material, also known as half-cut s...

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Abstract

The embodiment of the invention discloses a manufacturing method of a flexible OLED. The method comprises the steps of determining an alignment buffer region of each display panel in a flexible substrate, etching an inorganic layer in the alignment buffer region, and filling the alignment buffer region with an organic adhesive material till the alignment buffer region is flush with a packaging layer after an evaporation process in the flexible substrate is completed. In consideration that cracks caused by film alignment tolerance are mainly generated in the exposed inorganic layer around the effective display region, the alignment buffer region can be arranged around the effective display region of the display panel, the inorganic layer in the alignment buffer region is etched before the evaporation process of the flexible substrate is performed, and the alignment buffer region is filled with the organic adhesive material to the height flush with the packaging layer after the evaporation process is completed, so that the stress during the bending process is effectively buffered, and the problem of OLED failure caused by the cracks generated at the inorganic layer exposed around theeffective display region due to the existence of film alignment tolerance is avoided.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for manufacturing a flexible OLED. Background technique [0002] In the production process of flexible OLED, after the OLED evaporation and packaging process in the OLED display panel are completed, it is necessary to attach polarizers and touch screen films on the display panel. However, due to the misalignment of the film, when the flexible screen body is bent, the position without the film will cause cracks due to sudden changes in stress (such as figure 1 As shown), these cracks will be transmitted to the effective display area during the bending process of the OLED display panel, which will lead to the failure of the screen body. [0003] Therefore, there is an urgent need for a flexible OLED manufacturing method to solve the technical problem in the prior art that OLEDs fail due to cracks caused by film alignment tolerances. Contents of the invention [0004] ...

Claims

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Application Information

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IPC IPC(8): H01L51/56
CPCH10K71/12H10K71/00Y02P70/50
Inventor 高胜
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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