Manufacturing flexible organic electronic devices
a flexible, organic technology, applied in thermoelectric devices, sustainable manufacturing/processing, final product manufacturing, etc., can solve the problems of longer tac time and more complex material structur
Inactive Publication Date: 2014-06-19
UNIVERSAL DISPLAY
View PDF18 Cites 7 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The patent describes a method and system for depositing layers of materials on a flexible substrate for the formation of microelectronic systems, such as organic light emitting diodes. The method involves depositing the layers using a roll-to-roll feed and retrieval system, while the flexible substrate is in motion. The layers are deposited from multiple sources, and the perimeter of each source does not intersect the flexible substrate. The method may also include applying a surface treatment to the substrate before depositing the layers, and cooling the substrate before and after deposition. The flexible substrate may be wound onto a retrieval roller after deposition. The system includes a cylinder with openings through which the material passes to be deposited on the substrate, and the cylinder is rotated to deposit the material in a determined pattern. The method and system provide a way to efficiently deposit layers on flexible substrates for microelectronic systems.
Problems solved by technology
Organic-inorganic stacks are particularly good at covering particulate defects on the OLED surface (however, at the expense of a longer TAC time and more complex material structure).
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0055]The methods, devices and systems hereof can be used in connection with organic electronic devices generally. A number of representative embodiments thereof are discussed in connection with representative embodiments of flexible OLEDs formed in continuous, roll-to-roll processes.
[0056]Generally, an OLED comprises at least one organic layer disposed between and electrically connected to an anode and a cathode. When a current is applied, the anode injects holes and the cathode injects electrons into the organic layer(s). The injected holes and electrons each migrate toward the oppositely charged electrode. When an electron and hole localize on the same molecule, an “exciton,” which is a localized electron-hole pair having an excited energy state, is formed. Light is emitted when the exciton relaxes via a photoemissive mechanism. In some cases, the exciton may be localized on an excimer or an exciplex. Non-radiative mechanisms, such as thermal relaxation, may also occur, but are g...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| pressure | aaaaa | aaaaa |
| time | aaaaa | aaaaa |
| humidity | aaaaa | aaaaa |
Login to View More
Abstract
A method of forming microelectronic systems on a flexible substrate includes depositing a plurality of layers on one side of the flexible substrate. Each of the plurality of layers is deposited from one of a plurality of sources. A vertical projection of a perimeter of each one of the plurality of sources does not intersect the flexible substrate. The flexible substrate is in motion during the depositing the plurality of layers via a roll to roll feed and retrieval system.
Description
[0001]The claimed invention was made by, on behalf of, and / or in connection with one or more of the following parties to a joint university corporation research agreement: Regents of the University of Michigan, Princeton University, The University of Southern California, and the Universal Display Corporation. The agreement was in effect on and before the date the claimed invention was made, and the claimed invention was made as a result of activities undertaken within the scope of the agreement.FIELD[0002]In a number of embodiments, devices, systems and methods hereof relate to organic electronic devices including, for example, organic light-emitting diode devices and manufacture thereof.BACKGROUND[0003]The following information is provided to assist the reader in understanding technologies disclosed below and the environment in which such technologies may typically be used. The terms used herein are not intended to be limited to any particular narrow interpretation unless clearly s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(United States)
IPC IPC(8): H01L51/56H01L51/52H10K99/00
CPCH01L51/56H01L51/52H01L51/001H01L51/0097H01L2251/5338Y02E10/549Y02P70/50H10K71/164H10K77/111H10K2102/311H10K71/861H10K50/814H10K71/40C23C14/243C23C14/0078C23C14/04H10K71/00H10K71/60H10K71/811H10K2102/301
Inventor MA, RUIQINGSILVERNAIL, JEFFMANDLIK, PRASHANTBROWN, JULIA J.FELTS, JOHN
Owner UNIVERSAL DISPLAY