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 19):
The liquid crystal writing device of  claim 18 , wherein said feedback circuit includes a resistive voltage divider adapted to produce said FB input to said controller as a scaled version of said boost converter output voltage, said boost converter output voltage regulating to a scaled value of VFB, where VFB is the voltage level to which said controller regulates said FB input by pumping or not pumping said boost converter circuit, wherein said pumping of said boost converter circuit outputs a series of pulses on the BST signal, with each pulse causing the voltage on capacitor C 1  to increase, until said boost converter output voltage reaches the set level.

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): 0.6856562630032004
- 35 USC 102 Novelty (BERT): 0.5066692317708598
- Combined Prediction Score: 0.6677575598799663
- Mean Citation Score: 233.167504
- Max Citation Score: 260.55658
- Similarity Product: 175.932520275259

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