G02F 1/1397
The twist being substantially higher than 90°
Official title: {the twist being substantially higher than 90°, e.g. STN-, SBE-, OMI-LC cells}
G02F1/1397 (The twist being substantially higher than 90°) appears on 232 US grants and 71 published applications in this corpus.
Search patents in G02F- Granted patents
- 232
- Published applications
- 71
- Assignees
- 83
- Inventors
- 400
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 8 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 12 | 0 |
| 1991 | 11 | 0 |
| 1992 | 21 | 0 |
| 1993 | 14 | 0 |
| 1994 | 9 | 0 |
| 1995 | 3 | 0 |
| 1996 | 9 | 0 |
| 1997 | 9 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 19 | 0 |
| 2001 | 8 | 4 |
| 2002 | 9 | 10 |
| 2003 | 13 | 8 |
| 2004 | 17 | 7 |
| 2005 | 4 | 7 |
| 2006 | 4 | 5 |
| 2007 | 3 | 4 |
| 2008 | 5 | 2 |
| 2009 | 3 | 6 |
| 2010 | 1 | 0 |
| 2011 | 3 | 0 |
| 2012 | 2 | 1 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 3 |
| 2017 | 2 | 0 |
| 2018 | 1 | 0 |
| 2019 | 2 | 4 |
| 2020 | 1 | 0 |
| 2021 | 3 | 1 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Light modulating device and automobile18 Nov 2025US 12,474,610 B2LG Chem.Ltd.
- Display device19 Aug 2025US 12,396,354 B2Sharp Display Technology Corporation
- Light modulating device24 Dec 2024US 12,174,479 B2Dai Nippon Printing Co.Ltd.
- Light modulating device31 Oct 2023US 11,803,076 B2Dai Nippon Printing Co.Ltd.
- Display device6 Mar 2025US 2025/0081800 A1Sharp Display Technology Corporation
- Light Modulating Device and Automobile1 Feb 2024US 2024/0036400 A1LG Chem.Ltd.
- Light modulating device4 Jan 2024US 2024/0004231 A1Dai Nippon Printing Co.Ltd.
- Light modulating device9 Feb 2023US 2023/0044224 A1Dai Nippon Printing Co.Ltd.
- Liquid-crystalline medium27 Jan 2022US 2022/0025265 A1Merck Patent GmbH
Most cited
By later US patents
- Liquid crystal display device with common heater between two cells186US 5,247,374 AStanley Electric Co., Ltd. · 1993
- Liquid crystal display device161US 4,909,606 ASeiko Epson Corporation · 1990
- Liquid crystal display with optical compensatory sheet having discotic molecules varyingly inclined150US 5,583,679 AFuji Photo Film Co., Ltd. · 1996
- Liquid crystal display device with a birefringent compensator137US 5,016,988 ARicoh Company, Ltd. · 1991
- Liquid crystal display with optically anisotropic member having a twisted structure and phase plate129US 5,400,158 ASharp Kabushiki Kaisha · 1995