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Structure and method of fabricating organic devices

A technology of organic light-emitting devices and devices, used in semiconductor/solid-state device manufacturing, electrical solid-state devices, semiconductor devices, etc.

Inactive Publication Date: 2013-12-25
UNIVERSAL DISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the selection of appropriate materials for use in such polymer-based systems is often limited by the fact that the solution used as the carrier medium must be chosen so as to avoid dissolution of the underlying layer

Method used

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  • Structure and method of fabricating organic devices
  • Structure and method of fabricating organic devices
  • Structure and method of fabricating organic devices

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Embodiment Construction

[0019] Typically, an OLED includes at least one organic layer disposed between and electrically connected to an anode and a cathode. When an electric current is applied, the anode injects holes into the organic layer and the cathode injects electrons into the organic layer. The injected holes and electrons each migrate toward oppositely charged electrodes. When an electron and a hole are localized on the same molecule, an "exciton" is formed, which is a localized electron-hole pair with an excited energy state. Light is emitted when the excitons decay through the photoemission mechanism. In some cases, excitons may be localized on excimer associations or exciplexes. Non-emissive mechanisms may also occur, such as thermal relaxation phenomena, but are generally considered undesirable.

[0020] For example, the original OLEDs used emissive molecules that emitted light from a singlet state ("fluorescence") as disclosed in US Patent No. 4,769,292, which is incorporated herein b...

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Abstract

An organic light emitting device that may have mixed organic layers is provided. A method of fabricating such an organic light emitting device is provided. A first organic material is solution deposited to form a patterned organic layer over a first electrode. A second organic material is deposited, by means other than solution processing, on and in physical contact with the first organic layer to form a second organic layer. The second organic layer forms a blanket layer over the first organic layer. A second electrode is then deposited over the second organic layer.

Description

[0001] This application is a divisional application of a Chinese patent application with an application date of November 12, 2003, an application number of 200380103287.0, and an invention title of "Organic Device Structure and Manufacturing Method". [0002] This application is related to concurrently filed patent applications No. 10 / 295,802, Attorney Docket No. 10052 / 3301, and No. 10 / 295,808, Attorney Docket No. 10052 / 3501, each of which is incorporated herein in its entirety as refer to. field of invention [0003] The present invention relates to organic light emitting devices (OLEDs), and more particularly to organic devices having mixed organic layers, and methods of making the devices. Background technique [0004] Opto-electronic devices using organic materials are increasingly desirable for many reasons. Many of the materials used to make the devices are less expensive, so organic opto-electronic devices have a potential price advantage over inorganic devices. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L27/32H01L51/56H05B33/14H05B33/26H10K99/00
CPCY10S428/917H10K59/35H10K85/1135H10K85/631H10K85/649H10K85/311H10K85/324H10K85/342H10K50/15H10K50/16
Inventor M-H·M·陆
Owner UNIVERSAL DISPLAY