Patent for Sale:

Organic Light Emitting Device Display Technology    

Organic light emitting device – the patented technology provides for a barrier to protect against environmental degradation.

Overview

Displays using organic light-emitting devices (OLEDs) such as organic light-emitting promise thinner, lighter-weight displays than liquid crystal displays (LCDs). An OLED is a device using an organic species to emit light under an applied electric field. OLEDs are made out of one or more layers of organic materials stacked between conducting electrodes. A flow of electric current through this stack of materials stimulates the emission of light by the organic materials.

OLED technology is considered superior to LCD technology for use in displays for various reasons. For example, an OLED is an emissive system, creating its own light rather than relying on modulating a backlight. This leads to higher contrast, truer colors, crisper motion, and potentially lower power consumption. OLED displays may be manufactured via simpler and less expensive manufacturing processes.

OLED displays suffer from short lifetimes due to degradation caused by exposure to moisture and oxygen in air. This may prevent the use of the OLEDs in such devices as computer monitors and large screen displays. The patented technology provides for the OLED displays to be encapsulated to prevent degradation of the organic layers caused by exposure to moisture and oxygen. Thin films of organic polymers and inorganic materials deposited over the OLEDs lessen damage to the OLED materials caused by such oxidants as moisture and oxygen.

Primary Application of the Technology

Displays

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 438: Semiconductor Device Manufacturing: Process

This class provides for manufacturing a semiconductor containing a solid-state device for the following purposes: (a) conducting or modifying an electrical current, (b) storing electrical energy for subsequent discharge within a microelectronic integrated circuit, or (c) converting electromagnetic wave energy to electrical energy or electrical energy to electromagnetic energy. Also operations involving: (1) coating a substrate with a semiconductive material, or (2) coating a semiconductive substrate or substrate containing a semiconductive region. It also provides for operations involving etching a semiconductive substrate or etching a substrate containing a semiconductive region. The class provides for packaging or treatment of packaged semiconductor.

Subclass 125: Insulative housing or support
Subclass 126: And encapsulating
Subclass 21: MANUFACTURE OF ELECTRICAL DEVICE CONTROLLED PRINTHEAD
Subclass 28: Plural emissive devices

Class 257: Active Solid-State Devices (E.G., Transistors, Solid-State Diodes)

This class provides for active solid-state electronic devices, that is, electronic devices or components that are made up primarily of solid materials, usually semiconductors, which operate by the movement of charge carriers - electrons or holes - which undergo energy level changes within the material and can modify an input voltage to achieve rectification, amplification, or switching action, and are not classified elsewhere.

Subclass E21.035: Characterized by their composition, e.g., multilayer masks, materials (EPO)
Subclass E21.264: Layers comprising fluoro hydrocarbon compounds, e.g., polytetrafluoroethylene (EPO)

Class 445: Electric Lamp Or Space Discharge Component Or Device Manufacturing

This is the residual and generic class of process and apparatus for the manufacturing, fabrication, repair, salvage, assembly, disassembly or other treatment of an electric lamp, liquid crystal display device or an electric space discharge device which process or apparatus is not elsewhere classified.

Subclass 23: With assembly or disassembly
Subclass 24: Display or gas panel making
Subclass 25: With sealing

Class 313: Electric Lamp And Discharge Devices

This is the generic class for electric lamp and electric space discharge device structure. Examples of such devices are electric incandescent lamps, gas or vapor filled electric discharge tubes, including lamps, mercury arc devices, vacuum discharge tubes, radio tubes, cyclotrons, cathode-ray tubes, photosensitive discharge devices, secondary emission electron multipliers, spark plugs, and open air arc and spark devices.

Subclass 512: With envelope or encapsulation

Class 428: Stock Material Or Miscellaneous Articles

This is the residual class for: 1. Stock material in the form of a structurally defined web, sheet, rod, strand, fiber, filament, cell, flake, particle not provided elsewhere. 2. Stock material in the form of a web, sheet, mass or layer which consists of or contains a structurally defined constituent or element. 3. A nonstructural laminate defined merely in terms of the composition of one or more layers. 4. An article of manufacture or an intermediate-article not provided for elsewhere. 5. A process for applying an impregnating material to a naturally solid product such as a wood beam, a sheet of leather or a stone, or for applying a coating to a base, and which process includes no significant method step.

Subclass 1.55: Unsaturated aliphatic polymer (e.g., vinyl, etc.)
Subclass 355R: Adhesive compositions

Class 430: Radiation Imagery Chemistry: Process, Composition, Or Product Thereof

This is the generic class for: (1) Forming the likeness of an object, or an instrumented or discernible phenomenon, in a chemically defined receiver or in a receiver wherein radiation produces a chemical reaction, by use of radiation. (2) Finishing an image by chemical processing regardless how formed. (3) A radiation sensitive receiver, composition, or product disclosed solely for radiation imagery chemistry, and process of making same. (4) A nonradiation sensitive-receiver, composition, or product. (5) An imaged product by a process or employing a receiver, composition, or product.

Subclass 20: LIQUID CRYSTAL PROCESS, COMPOSITION, OR PRODUCT