PATENT CLAIM ANALYSIS

Application Number: 15952471
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-10
Patent Classification: ["345", "087000"]

Abstract:
A liquid crystal writing device includes a dispersion of cholesteric liquid crystal and polymer; a flexible substrate on which a user applies pressure that changes a texture of the cholesteric liquid crystal to form an image; electrically conductive layers between which the dispersion is disposed; and electronics adapted to apply an erase voltage waveform across the electrically conductive layers that forms a focal conic texture and erases the image. The erase voltage waveform includes: i) an erase portion at an erase voltage VE, the erase voltage VE being at least as high as a planar to homeotropic transition start voltage (VPH 0 ) of the cholesteric liquid crystal, and ii) a slow discharge portion that lasts for a time t d  that is at least 10 ms.

Claim (Index 23):
The liquid crystal writing device of  claim 18  wherein said discharge circuit is configured to form said slow discharge portion of said erase voltage waveform by discharging voltage at constant current.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 91.0
- Lexical Diversity: 1.84
- Patent Class: 345.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14971094', '13975692', '12220805', '15160767', '14678482']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6877508706206648
- 35 USC 102 Novelty (BERT): 0.4951328940920474
- Combined Prediction Score: 0.668489072967803
- Mean Citation Score: 233.167504
- Max Citation Score: 260.55658
- Similarity Product: 210.6793592047144

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