G02F 1/13
Based on liquid crystals
Official title: based on liquid crystals, e.g. single liquid crystal display cells
G02F1/13 (Based on liquid crystals) appears on 76,957 US grants and 85,877 published applications in this corpus.
Search patents in G02F- Granted patents
- 76,957
- Published applications
- 85,877
- Assignees
- 6,188
- Inventors
- 69,539
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 139 | 0 |
| 1977 | 95 | 0 |
| 1978 | 99 | 0 |
| 1979 | 46 | 0 |
| 1980 | 101 | 0 |
| 1981 | 99 | 0 |
| 1982 | 53 | 0 |
| 1983 | 126 | 0 |
| 1984 | 110 | 0 |
| 1985 | 127 | 0 |
| 1986 | 128 | 0 |
| 1987 | 231 | 0 |
| 1988 | 233 | 0 |
| 1989 | 269 | 0 |
| 1990 | 259 | 0 |
| 1991 | 305 | 0 |
| 1992 | 398 | 0 |
| 1993 | 378 | 0 |
| 1994 | 423 | 0 |
| 1995 | 470 | 0 |
| 1996 | 630 | 0 |
| 1997 | 656 | 0 |
| 1998 | 970 | 0 |
| 1999 | 858 | 0 |
| 2000 | 1037 | 0 |
| 2001 | 1104 | 699 |
| 2002 | 1097 | 1877 |
| 2003 | 1387 | 1873 |
| 2004 | 1599 | 2488 |
| 2005 | 1523 | 2970 |
| 2006 | 1740 | 3273 |
| 2007 | 1650 | 3602 |
| 2008 | 1868 | 3559 |
| 2009 | 2267 | 3643 |
| 2010 | 2825 | 3558 |
| 2011 | 2872 | 3167 |
| 2012 | 2936 | 3365 |
| 2013 | 2824 | 3484 |
| 2014 | 2976 | 3827 |
| 2015 | 3151 | 4332 |
| 2016 | 3512 | 4872 |
| 2017 | 3922 | 4635 |
| 2018 | 3843 | 4907 |
| 2019 | 4675 | 4736 |
| 2020 | 4427 | 4202 |
| 2021 | 3689 | 4333 |
| 2022 | 3390 | 3117 |
| 2023 | 2926 | 2823 |
| 2024 | 3008 | 3070 |
| 2025 | 2426 | 2114 |
| 2026 | 1080 | 1351 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02F 1/133Constructional arrangements74,488
- G02F 1/137Characterised by the electro-optical or magneto-optical effect6,274
- G02F 1/1303Apparatus specially adapted to the manufacture of lcds1,210
- G02F 1/1306Details1,189
- G02F 1/1323Arrangements for providing a switchable viewing angle859
- G02F 1/1313Specially adapted for a particular application463
- G02F 1/1326Liquid crystal optical waveguides or liquid crystal cells specially adapted for gating324
- G02F 1/132Thermal activation of liquid crystals exhibiting a thermo-optic effect232
Recent patents
- Wavelength conversion member6 Oct 2026US 12,752,518 B2Nichia Corporation
- Reflective optical stack for privacy display6 Oct 2026US 12,754,445 B2RealD Spark, LLC
- Viewing angle controllable touch panel device and display device6 Oct 2026US 12,754,446 B2Tianma Japan, Ltd.
- Backlight with optical film, illumination device therewith, and display screen6 Oct 2026US 12,754,447 B2siOPTICA GmbH
- Systems and devices for display surface temperature reduction6 Oct 2026US 12,754,448 B2Wayne Fueling Systems LLC
- Light modulating device and manufacturing method8 Oct 2026US 2026/0307365 A1Dai Nippon Printing Co.Ltd.
- Optical laminate and display apparatus8 Oct 2026US 2026/0307377 A1Nitto Denko Corporation
- Ink composition, film using the same, and electrophoretic display device8 Oct 2026US 2026/0308408 A1Samsung Display Co., Ltd.
- Polyamide-imide-based film, preparation method thereof, and cover window and display device comprising the same8 Oct 2026US 2026/0308414 A1Microworks Solutions Co., Ltd.
- Wavelength conversion sheet, backlight, and liquid crystal display device8 Oct 2026US 2026/0308447 A1Dai Nippon Printing Co.Ltd.
Most cited
By later US patents
- Methods for forming liquid crystal displays including thin film transistors and gate pads having a particular structure4,059US 5,731,856 ASamsung Electronics Co., Ltd. · 1998
- Semiconductor device having a transparent switching element3,952US 5,744,864 AU. S. Philips Corporation · 1998
- Multipoint touchscreen3,397US 7,663,607 B2Apple Inc. · 2010
- Interferometric modulation of radiation1,041US 6,674,562 B1Iridigm Display Corporation · 2004
- Display apparatus1,024US 8,811,017 B2Sony Corporation · 2014