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Method for edge sealing barrier films

An edge sealing and edge technology, applied in chemical instruments and methods, electrical components, circuits, etc., can solve the problems of reducing the area of ​​environmentally sensitive devices and not eliminating them

Inactive Publication Date: 2011-11-23
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this reduces the area of ​​the substrate available for efficient environmentally sensitive devices
Also, this only reduces the problem, not eliminates it

Method used

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  • Method for edge sealing barrier films
  • Method for edge sealing barrier films
  • Method for edge sealing barrier films

Examples

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Embodiment Construction

[0021] figure 2 An edge-sealed encapsulated environmentally sensitive device 400 is shown. Substrate 405 may be removed after fabrication of the device, if desired. The environmentally sensitive device 430 is enclosed between an initial barrier stack 422 on one side and an additional barrier stack 440 on the other side. Another initial barrier stack 420 is between the substrate 405 and the initial barrier stack 422 .

[0022] An environmentally sensitive device can be any device that needs to be protected from moisture, gas, or other contaminants. Environmentally sensitive devices include, but are not limited to, organic light-emitting devices, liquid crystal displays, displays utilizing electrophoretic inks, light-emitting diodes, light-emitting polymers, electroluminescent devices, phosphorescent devices, organic optoelectronic devices, inorganic optoelectronic devices, thin-film batteries, Thin film devices, microelectromechanical systems (MEMS), electro-optic polymer mo...

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Abstract

Methods of making an edge-sealed, encapsulated environmentally sensitive device. One method includes providing an environmentally sensitive device with a contact on a substrate; depositing a decoupling layer adjacent to the environmentally sensitive device, the decoupling layer having a discrete area and covering the environmentally sensitive device and not covering the contact, the decoupling layer deposited using a printing process; depositing a first barrier layer adjacent to the decoupling layer, the first barrier layer having a first area greater than the discrete area of the decoupling layer, and the first barrier layer having a second area covering the decoupling layer and the contact, the decoupling layer being sealed between the edges of the first barrier layer and the substrate or an optional second barrier layer; and removing the second area of the first barrier layer from the contact.

Description

technical field [0001] The present invention relates generally to multilayer thin film barrier compositions and, more particularly, to multilayer thin film barrier compositions having edges sealed against lateral moisture and gas diffusion. Background technique [0002] Multilayer thin film barrier compositions having alternating layers of barrier material and polymer material are known. These compositions are generally formed by depositing (for example by vapor deposition) alternating layers of barrier material and polymeric material. If the polymer layer is deposited over the entire surface of the substrate, the edges of the polymer layer are exposed to oxygen, moisture, and other contaminants. This potentially allows moisture, oxygen or other contaminants to diffuse laterally from the edge of the composition into the encapsulated environmentally sensitive device, as shown in FIG. 1 . Multilayer thin film barrier composition 100 includes a substrate 105 and alternating l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/00
CPCH01L51/5237H01L2924/12044H01L23/564H01L2924/0002H10K59/873H01L2924/00H10K71/851B32B27/06H05B33/04H10K50/8445
Inventor 楚西保罗·E·伯罗斯艾里克·S·马斯特彼得·M·马丁戈登·L·格拉夫马克·E·格罗斯查尔斯·C·博纳姆温蒂·D·贝纳特迈克·G·霍尔马丁·菲利普·罗森布拉姆
Owner SAMSUNG DISPLAY CO LTD
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