G02F 1/1393
The birefringence of the liquid crystal being electrically controlled
Official title: {the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells (G02F1/1396, G02F1/141 take precedence)}
G02F1/1393 (The birefringence of the liquid crystal being electrically controlled) appears on 1,885 US grants and 2,039 published applications in this corpus.
Search patents in G02F- Granted patents
- 1,885
- Published applications
- 2,039
- Assignees
- 358
- Inventors
- 2,480
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 9 | 0 |
| 1993 | 13 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 10 | 0 |
| 1999 | 16 | 0 |
| 2000 | 43 | 0 |
| 2001 | 33 | 41 |
| 2002 | 42 | 81 |
| 2003 | 78 | 87 |
| 2004 | 66 | 142 |
| 2005 | 87 | 178 |
| 2006 | 102 | 193 |
| 2007 | 88 | 182 |
| 2008 | 109 | 174 |
| 2009 | 133 | 150 |
| 2010 | 147 | 114 |
| 2011 | 167 | 123 |
| 2012 | 129 | 116 |
| 2013 | 88 | 72 |
| 2014 | 86 | 62 |
| 2015 | 69 | 47 |
| 2016 | 48 | 57 |
| 2017 | 43 | 34 |
| 2018 | 38 | 39 |
| 2019 | 41 | 43 |
| 2020 | 33 | 16 |
| 2021 | 27 | 25 |
| 2022 | 19 | 18 |
| 2023 | 13 | 19 |
| 2024 | 14 | 17 |
| 2025 | 15 | 8 |
| 2026 | 7 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Display device15 Sep 2026US 12,736,839 B2LG Display Co., Ltd.
- Adjustable-magnification viewing system30 Jun 2026US 12,669,695 B2Thales
- Liquid crystal display device16 Jun 2026US 12,658,150 B2Semiconductor Energy Laboratory Co.Ltd.
- Dynamic vision sensing system with a static capturing mode2 Jun 2026US 12,647,678 B2Hong Kong Applied Science and Technology Research Institute Company Limited
- Multi-focusing meta lens26 May 2026US 12,638,712 B2Posco Holdings Inc.
- Liquid crystal element and head-mounted display6 Aug 2026US 2026/0227662 A1Sharp Kabushiki Kaisha
- Compound, liquid crystal composition, and liquid crystal display element, sensor, liquid crystal lens, optical communication equipment, and antenna using same11 Dec 2025US 2025/0377570 A1DIC Corporation
- Display device16 Oct 2025US 2025/0321443 A1Japan Display Inc.
- Electronic device2 Oct 2025US 2025/0306411 A1Innolux Corporation
- Electronic device24 Jul 2025US 2025/0237898 A1Innolux Corporation
Most cited
By later US patents
- Liquid crystal displays having multi-domain cells279US 5,309,264 AInternational Business Machines Corporation · 1994
- Vertically aligned (VA) liquid crystal display device268US 6,724,452 B1Fujitsu Display Technologies Corporation · 2004
- Variable focus liquid crystal lens system263US 4,190,330 ABell Telephone Laboratories, Incorporated · 1980
- Vertically-alligned (VA) liquid crystal display device254US 6,661,488 B1Fujitsu Limited · 2003
- Liquid crystal cell using the electrically controlled birefringence effect and a uniaxial medium of negative optical anisotropy usable therein248US 4,889,412 ACommissariat A L' Energie Atomique · 1989