G02F 2413/14
Negative birefingence
G02F2413/14 (Negative birefingence) appears on 98 US grants and 107 published applications in this corpus.
Search patents in G02F- Granted patents
- 98
- Published applications
- 107
- Assignees
- 68
- Inventors
- 276
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 4 |
| 2005 | 1 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 9 |
| 2008 | 3 | 12 |
| 2009 | 5 | 5 |
| 2010 | 3 | 4 |
| 2011 | 7 | 2 |
| 2012 | 7 | 6 |
| 2013 | 1 | 6 |
| 2014 | 4 | 1 |
| 2015 | 3 | 6 |
| 2016 | 3 | 5 |
| 2017 | 5 | 4 |
| 2018 | 2 | 7 |
| 2019 | 8 | 6 |
| 2020 | 1 | 9 |
| 2021 | 4 | 10 |
| 2022 | 7 | 3 |
| 2023 | 6 | 2 |
| 2024 | 2 | 1 |
| 2025 | 3 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Light modulating device30 Sep 2025US 12,429,733 B2LG Chem.Ltd.
- Liquid crystal panel and display device9 Sep 2025US 12,412,540 B2Sharp Display Technology Corporation
- Retardation film and method for producing the same22 Jul 2025US 12,366,694 B2Osaka Gas Chemicals Co., Ltd.
- 3D glasses, optical device, and three-dimensional image display device12 Mar 2024US 11,927,775 B2Sharp Display Technology Corporation
- Optical stack for privacy display16 Jan 2024US 11,874,576 B2RealD Spark, LLC
- Display device17 Apr 2025US 2025/0123516 A1Coretronic Corporation
- Liquid crystal panel and display device1 Aug 2024US 2024/0257775 A1Sharp Display Technology Corporation
- 3d glasses, optical device, and three-dimensional image display device19 Oct 2023US 2023/0333402 A1Sharp Display Technology Corporation
- Light Modulating Device28 Sep 2023US 2023/0305338 A1LG Chem.Ltd.
- Optical stack for privacy display11 Aug 2022US 2022/0252915 A1RealD Spark, LLC
Most cited
By later US patents
- Liquid crystal display with compensator having two films with positive and negative intrinsic birefringence, respectively98US 5,138,474 AFuji Photo Film Co., Ltd. · 1992
- Liquid crystal display having positive and negative birefringent compensator films88US 5,189,538 AFuji Photo Film Co., Ltd. · 1993
- Homeotropic liquid crystal display device79US 5,039,185 ACommissariat A L' Energie Atomique · 1991
- Display and view angle control element employed therein71US 8,098,350 B2Sharp Kabushiki Kaisha · 2012
- Uniaxially stretched negative birefringent film and liquid crystal display having the same63US 5,430,565 AFuji Photo Film Co., Ltd. · 1995