PATENT CLAIM ANALYSIS

Application Number: 15742042
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-02
Patent Classification: ["257", "040000"]

Abstract:
The present invention provides an OLED substrate and a fabrication method thereof. The OLED substrate fabrication method of the present invention forms pixel areas of which shapes are each a first pattern that is made up of a rectangle and two semicircles that are respectively connected to two short edges of the rectangle or a second pattern that is made up of a rectangle having four corners that are each a round corner so as to improve homogeneity and consistency of film formation through inkjet printing in the pixel areas thereby enhancing lighting homogeneity and performance stability of an OLED device. The OLED substrate of the present invention is made to have uniform thickness for inkjet-printed films so as to achieve uniform lighting and stable performance of an OLED device.

Claim (Index 11):
An organic light emitting display (OLED) substrate fabrication method, comprising the following steps:\n providing a backing plate and forming a plurality of anodes that are spaced from each other on the backing plate; forming a pixel definition layer on the plurality of anodes and the backing plate, such that the pixel definition layer surrounds and delimits a plurality of pixel areas on the plurality of anodes, respectively, and the plurality of pixel areas each have a shape that comprises a first pattern or a second pattern, wherein the first pattern is made up of a rectangle and two semicircles respectively connected to two short edges of the rectangle and the second pattern is made up of a rectangle having four corners each comprising a rounded corner; forming a plurality of hole injection layers in the plurality of pixel areas to be respectively located on the plurality of anodes; forming a plurality of hole transportation layers on the plurality of hole injection layers, respectively; forming a plurality of light emission layers on the plurality of hole transportation layers, respectively; forming a plurality of electron transportation layers on the plurality of light emission layers, respectively; and forming a plurality of cathodes on the plurality of electron transportation layers, respectively; wherein in the first pattern, the semicircles have a radius that is one half of a length of the short edges of the rectangle; and in the second pattern, the round corners are each a quarter of a circle and the round corners have a radius that is one third or one fourth of a length of short edges of the rectangle; further comprising: forming spacer pillars on the pixel definition layer, wherein the spacer pillars and the pixel definition layer are formed of the same material in the same process; wherein a magnetron sputtering based film formation operation is used to form the plurality of anodes; the plurality of anodes are formed of a material that comprises a transparent conductive metal oxide; and the anodes have a film thickness between 20 nm and 200 nm; an inkjet printing based film formation operation is used to form the hole injection layers, and the hole injection layers have a film thickness between 60 nm and 100 nm; and an inkjet printing based film formation operation is used to form the hole transportation layers, the hole transportation layers have a film thickness between 100 nm and 150 nm; and wherein an inkjet printing based film formation operation is used to form the light emission layers, and the light emission layers have a film thickness between 60 nm and 100 nm; a vapor deposition film formation operation is used to form the electron transportation layers, and the electron transportation layers have a film thickness between 0.5 nm and 20 nm; and a vacuum vapor deposition film formation operation is used to form the cathodes; the cathodes are formed of a material that comprises aluminum; and the cathodes have a film thickness between 100 nm and 200 nm.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 1.95588
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15557132', '15557130', '15503717', '15736476', '15106315']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.917394040263884
- 35 USC 102 Novelty (BERT): 0.4873726383463291
- Combined Prediction Score: 0.8743919000721285
- Mean Citation Score: 224.470522
- Max Citation Score: 239.78477
- Similarity Product: 192.51103300795089

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