Samsung Display Co., Ltd. (Yongin-si, KR)
Embodiments are a part of the organic light-emitting device.
2. Description of Related Art
Organic light emitting devices (OLEDs) These are self-emitting, can provide advantages such as wide viewing angles, excellent contrast, quick response, high brightness, excellent performance in terms of driving voltage, and offer multicolored images.
A structure that emits organic light can comprise a first, second and third region of hole transport along with an emission layer, electron transport region, and an emission layer. The hole transport area may allow electrons to move from the second electrode towards the emission layers. Holes that are injected through the first electrode may be transported to the layer through the hole transport zone, and electrons could move from the second electrode to that layer via electron transport. Excitons can be produced by carriers (e.g. electrons and holes). Light is produced when excitons drop from an excited state to a ground state.
These embodiments target an organic light-emitting device.
Additional aspects will also be described in the next description. These additional features can be derived from the description, or by applying the present embodiments.
In accordance with some or all of the embodiments described in this disclosure an organic light-emitting apparatus comprises an anode, cathode; and an organic layer disposed between the anode and cathode
wherein the organic layer includes the following: i) an area of hole transport disposed between the anode and the emission layer, and comprising buffer layers as well as at least one of an injection layer for holes and a layer for transporting holes and an electron blocking layer andii) an electron transport area located between the cathode and the emission layer and comprising at least one of a hole blocking layer and an electron transport layer, as well as an electron injection layer
The buffer layer is situated between the electron transport area and the emission layer.
The buffer layer has a biscarbazole derivative and an a triphenylene derivative.
A triplet energy, E.sup.TI, of one of the biscarbazole or triphenylene-based derivatives and a triplet energie (E.sup.T2) from a dopant in the emission layer are in line with this relation: E.sup.T1>E.sup.T2.Click here to view the patent on USPTO website.
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A patent is granted by the government to protect an invention, patents give the inventor with exclusive rights to create, use to sell, and promote the invention?society gains when a new technology is brought into the marketplace. The benefits may be directly, in that it can allow people to accomplish previously unattainable things, or indirectly, through the economic opportunities (business growth and employment) that innovation provides.
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There are a variety of patents. Understanding the different types of patents is vital for protecting your invention. Utility patents cover the development of new methods and machines. Design patents cover ornamental designs. Patents for utility are the best option and shield the owner from copycats and other competitors. In most cases the utility patent is issued for improvements or modifications on existing inventions. They can also be used to improve or alter existing inventions. For instance, a process patent covers acts or methods of doing a specific act, whereas chemical compositions will comprise an assortment of ingredients.
What’s the duration of a patent last? Utility patents last 20 years from the initial filing dates, but their expirations may be extended due to delays in the patent office such as.
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A patent search is an essential step when you are drafting an application for patent. This will allow you to discover other concepts and provide an understanding of the potential of them. This allows you to limit the extent of your invention. Additionally, you’ll be able to learn about state of the technological advancements in your field of innovation. You’ll have a better idea of what your invention should be and will be better prepared for writing your patent application.
How to Search for Patents
The first step in getting the patent you want is to perform an internet search for patents. You can do a google patent search or do a USPTO search. After the patent application has been filed, the item subject to the patent can be called patent-pending, and you can locate the patent application online on the public pair. Once the patent office approves the application, you are able to perform a patent search to find the patent, and your product has now been granted a patent. In addition to the USPTO search engine, you can also utilize other search engines, such as espacenet, which is described below. A patent lawyer or attorney can advise you on the procedure. Patents granted in the United States are granted by the US trademark and patent office, also known as the United States patent office and trademark office. This office also reviews trademark applications.
Interested in finding more similar patents? Here are the steps:
1. Think of terms that describe your invention, based on its purpose and composition or usage.
Begin by writing down a brief and precise description of your invention. Avoid using generic terms like “device,” “process,” and “system.” Instead, consider synonyms to the terms you initially chose. Then, note crucial technical terms as well as key words.
Use the questions below to help you identify key words or concepts.
- What is the purpose of the invention? Is it a utilitarian device or an ornamental design?
- Invention is a method to come up with something or to perform a function? Are you referring to a product?
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- What are the technical words and terms that describe the essence of an invention? To assist you in finding the appropriate terms, use a technical dictionary.
2. Use these terms to search for relevant Cooperative Patent Classifications on the Classification Text Search Tool. If you are unable to find the right classification for your invention, look through the classification’s Schemas of classes (class schedules). If you do not get results using the Classification Text Search, you may want to consider replacing the words that describe your invention with synonyms.
3. Examine 3. Go over the CPC Classification Definition to confirm the accuracy of the CPC classification you’ve located. The hyperlink to the CPC classification definition will be available if the chosen classification title has a blue box that includes “D” on its left. CPC classification definitions can help determine the scope of the classification, so you are certain to choose the one that is relevant. Furthermore they can provide some tips for searching and other information that may be useful for further study.
4. Find patent documents that have the CPC classification from the Patents Full-Text and Image Database. You can review and find the most relevant patent publications by looking first at abstract and drawings representative of.
5. This list of patent publications is the best to examine for similarity to your idea. Be sure to read the claims and specifications. It is possible to find additional patents through contacting the patent examiner and applicant.
6. Find patent applications published in the public domain using the CPC classification you chose in Step 3 from the Applications Full-Text and Image Database. You can use the same method of search in Step 4 to narrow your search results to the most relevant patent application by examining the abstract and illustrations on every page. Next, carefully examine the patent applications that have been published with particular attention paid to the claims and the additional drawings.
7. Locate other US patents by keyword searches in PatFT and AppFT databases, searching for classification of non-U.S. patents as described below, and searching non-patent publications of inventions with internet search engines. Examples:
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- Japan Patent Office (JPO) – with access to machine translations of Japanese patents.
- World Intellectual Property Organization (WIPO) offers PATENTSCOPE with a full-text search of published international patent applications and machine translations for some documents, as well as a list of international patent databases.
- Korean Intellectual Property Rights Information Service (KIPRIS)
- State Intellectual Property Office (SIPO) with machine translation of Chinese patents.
- Other International Intellectual Property Offices with online patent databases include Australia, Canada, Denmark, Finland, France, Germany, Great Britain, India, Israel, Netherlands, Norway, Sweden, Switzerland, and Taiwan.
- Search non-patent literature. Inventions can be made public in many non-patent publications. It is recommended that you search journals, books, websites, technical catalogs, conference proceedings, and other print and electronic publications.
To review your search, you can hire a registered patent attorney to assist. A preliminary search will help one better prepare to talk about their invention and other related inventions with a professional patent attorney. In addition, the attorney will not spend too much time or money on patenting basics.