G02F 1/1337
Surface-induced orientation of the liquid crystal molecules
Official title: Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
G02F1/1337 (Surface-induced orientation of the liquid crystal molecules) appears on 8,566 US grants and 9,506 published applications in this corpus.
Search patents in G02F- Granted patents
- 8,566
- Published applications
- 9,506
- Assignees
- 1,018
- Inventors
- 10,151
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 27 | 0 |
| 1977 | 7 | 0 |
| 1978 | 11 | 0 |
| 1979 | 9 | 0 |
| 1980 | 9 | 0 |
| 1981 | 11 | 0 |
| 1982 | 6 | 0 |
| 1983 | 12 | 0 |
| 1984 | 6 | 0 |
| 1985 | 9 | 0 |
| 1986 | 10 | 0 |
| 1987 | 13 | 0 |
| 1988 | 17 | 0 |
| 1989 | 21 | 0 |
| 1990 | 20 | 0 |
| 1991 | 27 | 0 |
| 1992 | 38 | 0 |
| 1993 | 35 | 0 |
| 1994 | 43 | 0 |
| 1995 | 59 | 0 |
| 1996 | 73 | 0 |
| 1997 | 91 | 0 |
| 1998 | 117 | 0 |
| 1999 | 103 | 0 |
| 2000 | 100 | 0 |
| 2001 | 130 | 89 |
| 2002 | 111 | 214 |
| 2003 | 156 | 180 |
| 2004 | 178 | 280 |
| 2005 | 176 | 335 |
| 2006 | 204 | 349 |
| 2007 | 181 | 403 |
| 2008 | 174 | 311 |
| 2009 | 264 | 370 |
| 2010 | 313 | 358 |
| 2011 | 335 | 323 |
| 2012 | 338 | 391 |
| 2013 | 289 | 399 |
| 2014 | 315 | 412 |
| 2015 | 391 | 591 |
| 2016 | 457 | 708 |
| 2017 | 515 | 629 |
| 2018 | 519 | 529 |
| 2019 | 505 | 570 |
| 2020 | 502 | 470 |
| 2021 | 410 | 433 |
| 2022 | 356 | 275 |
| 2023 | 299 | 291 |
| 2024 | 286 | 292 |
| 2025 | 213 | 205 |
| 2026 | 75 | 99 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02F 1/133707Structures for producing distorted electric fields2,834
- G02F 1/13378By treatment of the surface2,294
- G02F 1/133711By organic films2,085
- G02F 1/133753With different alignment orientations or pretilt angles on a same surface1,467
- G02F 1/133742For homeotropic alignment869
- G02F 1/133738For homogeneous alignment358
- G02F 1/133776Having structures locally influencing the alignment298
- G02F 1/133749For low pretilt angles, i.e. lower than 15 degrees151
All 16 subgroupsShow fewer
- G02F 1/133746For high pretilt angles, i.e. higher than 15 degrees144
- G02F 1/13373Disclination line143
- G02F 1/133765Without a surface treatment136
- G02F 1/133734By obliquely evaporated films130
- G02F 1/133773The alignment material or treatment being different for the two opposite substrates127
- G02F 1/133703By introducing organic surfactant additives into the liquid crystal material104
- G02F 1/133769Comprising an active64
- G02F 1/133796Having conducting property57
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Most cited
By later US patents
- Liquid-crystal electro-optical apparatus and method of manufacturing the same383US 5,594,569 ASemiconductor Energy Laboratory Co.Ltd. · 1997
- Display device having transparent conductive film and metal film352US 9,773,818 B2Semiconductor Energy Laboratory Co.Ltd. · 2017
- 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
- Active matrix liquid crystal display having electric fields parallel to substrates265US 5,745,207 AMatsushita Electric Industrial Co., Ltd. · 1998