Technology: OLED based flexible screen; Series: I of IV
Paster’s new AI Semantic search harnesses the power of advanced transformer-based LLM models specifically trained for patent data. The result is, greater precision and accuracy, ensuring highly relevant search results tailored to the user’s input paragraph or patent.
The AI search is ideal for screening of new invention disclosures and for all novelty (or similar) patent search projects.
Searching within patents by paragraphs (or natural language) isn’t new and has been present for more than a decade now. So, users must evaluate the relevance and accuracy of results across different semantic search tools manually as the functionality pretty much boils down to the accuracy and relevance of the top 20/50 results.
In this series of case-studies, we aim to demonstrative the effectiveness of PatSeer’s AI search against invention descriptions from different fields of science by using a manual evaluation of the claims in the search results against the input paragraph.
For the first case study we chose OLED (Organic Light Emitting Diodes) as the topic. We wrote a sample invention description of our own that covered the OLED based flexible screen device and the description included the following key elements:
Key elements of the invention description:
- Flexible OLED (Organic Light Emitting Diode) panel
- Flexible substrate made of polyimide or elastic material
- Organic light-emitting diode layer
- Thin-film transistor layer
The analysis of the results and their relevance (in Claims) was done for the first 10 records of search results. The approach used was to manually assess how well the claims of the first 10 records overlapped with the key elements.
The following table shows the Claims mapping of the key elements for the first record (US2020241676 – Organic Light Emitting Diode folding display) that showed up in the results:
Key Elements | Claim Numbers matched | Reference text from the matching claim | Type of match |
Flexible OLED (Organic Light Emitting Diode) panel | 1, 11 | organic light emitting diode (OLED) folding display | Full overlap |
Flexible substrate made of polyimide | 1, 11, 16 | Base substrate made of polyimide | Full overlap |
Organic light-emitting diode layer | 1, 11 | OLED device layer | Full overlap |
Thin-film transistor layer | 1, 9, 11, 20 | thin film transistor array layer | Full overlap |
We can see that variations of the key elements in the Invention disclosure are also automatically matched due to the contextual nature of the semantic search. The last column indicates the type of match between element and the patent claim and this is based on manual review.
As we can see, all the key elements mentioned in the paragraph were specifically covered in the claims of the first record identified through the AI Semantic search.
A similar analysis was done for all the top 10 records, and the results are given in the table below. Assigning 1 pts for full overlap, 0.5 pts for partial and 0 for no overlap, and by giving a weight in proportion to the position of each record in the result, the final semantic performance score for the top 10 results = 88.6%
| Key Elements Claims Mapping | ||||
Patent Number | Title | Flexible OLED panel | Flexible substrate made of polyimide or elastic Material | Organic light-emitting diode layer | Thin-film transistor layer |
US2020241676A1 | Organic Light Emitting Diode folding display | Full overlap | Full overlap | Full overlap | Full overlap |
US2020235322A1 |
Flexible and foldable OLED display device | Full overlap | Full overlap | Full overlap | Full overlap |
US2021091317A1 |
Organic Light Emitting Diode folding display panel and manufacturing method thereof | Full overlap | Partial Overlap | Full overlap | Full overlap |
WO2021056670A1 |
OLED foldable display screen and manufacturing method therefor | Full overlap | Full overlap | Full overlap | Partial Overlap |
US2021408404A1 |
Flexible Organic Light Emitting Diode display panel and foldable display device | Full overlap | Full overlap | Full overlap | No Overlap |
US2018061893A1 | Foldable display design with generalized layer mechanical compatibility | Partial Overlap | Partial Overlap | Partial Overlap | Full overlap |
US2021234129A1 | Flexible Organic Light Emitting Diode display panel | Full overlap | Full overlap | Full overlap | Full overlap |
US2021408467A1 | Foldable Organic Light Emitting Diode display panel and Organic Light Emitting Diode display screen | Full overlap | Partial Overlap | Full overlap | Full overlap |
CN111613607A | Flexible Organic Light Emitting Diode display panel | Full overlap | Partial Overlap | Full overlap | Partial Overlap |
US2019131550A1 |
Flexible OLED display panel and method for manufacturing same | Full overlap | Full overlap | Partial Overlap | Full overlap |
PatSeer allows you to refine and/or re-rank the original search results based on records that you identify as relevant and these additional steps help improve result quality further but, in the above study we benchmarked the results without any manual refinements.
To sum up, its important to make a detailed assessment of semantic search performance by using your own invention descriptions. The above case study shown such an example from electronics domain, and we hope to publish more studies from other domains soon.
PatSeer’s AI Semantic Searching can bring remarkable productivity improvements to your novelty or invalidity studies. Why not take a trial and see for yourself?
