PATENT CLAIM ANALYSIS

Application Number: 15984825
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["257", "040000"]

Abstract:
A light-emitting element having high external quantum efficiency is provided. A light-emitting element having a long lifetime is provided. A light-emitting element is provided which includes a light-emitting layer containing a phosphorescent compound, a first organic compound, and a second organic compound between a pair of electrodes, in which a combination of the first organic compound and the second organic compound forms an exciplex (excited complex). The light-emitting element transfers energy by utilizing an overlap between the emission spectrum of the exciplex and the absorption spectrum of the phosphorescent compound and thus has high energy transfer efficiency. Therefore, a light-emitting element having high external quantum efficiency can be obtained.

Claim (Index 21):
A method of using a light-emitting element comprising a first compound, a second compound, and a phosphorescent compound between a pair of electrodes, the method comprising:\n forming an exciplex between the first compound and the second compound; and transferring an excitation energy from the exciplex to the phosphorescent compound, wherein an emission spectrum of the exciplex overlaps with a longest wavelength side absorption band in an absorption spectrum of the phosphorescent compound, and wherein each of a level of a triplet excitation energy of the first compound and a level of a triplet excitation energy of the second compound is higher than a level of a triplet excitation energy of the phosphorescent compound.

Metadata:
- Claim Count in Document: 105.0
- Percentile: 93.0
- Lexical Diversity: 2.18182
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15454055', '13370679', '15492439', '13419892', '14924054']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9559811050931878
- 35 USC 102 Novelty (BERT): 0.6691172627893598
- Combined Prediction Score: 0.927294720862805
- Mean Citation Score: 642.1267879999998
- Max Citation Score: 741.4226
- Similarity Product: 640.342506176734

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test