G02F 1/1336
Illuminating devices
Official title: {Illuminating devices}
G02F1/1336 (Illuminating devices) appears on 15,037 US grants and 18,532 published applications in this corpus.
Search patents in G02F- Granted patents
- 15,037
- Published applications
- 18,532
- Assignees
- 2,086
- Inventors
- 20,620
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 4 | 0 |
| 1978 | 10 | 0 |
| 1979 | 3 | 0 |
| 1980 | 11 | 0 |
| 1981 | 9 | 0 |
| 1982 | 2 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 9 | 0 |
| 1987 | 15 | 0 |
| 1988 | 23 | 0 |
| 1989 | 23 | 0 |
| 1990 | 20 | 0 |
| 1991 | 21 | 0 |
| 1992 | 31 | 0 |
| 1993 | 23 | 0 |
| 1994 | 40 | 0 |
| 1995 | 53 | 0 |
| 1996 | 61 | 0 |
| 1997 | 67 | 0 |
| 1998 | 106 | 0 |
| 1999 | 88 | 0 |
| 2000 | 144 | 0 |
| 2001 | 137 | 96 |
| 2002 | 127 | 233 |
| 2003 | 174 | 258 |
| 2004 | 201 | 372 |
| 2005 | 226 | 518 |
| 2006 | 283 | 791 |
| 2007 | 324 | 818 |
| 2008 | 332 | 892 |
| 2009 | 467 | 968 |
| 2010 | 639 | 942 |
| 2011 | 620 | 754 |
| 2012 | 656 | 768 |
| 2013 | 631 | 846 |
| 2014 | 713 | 797 |
| 2015 | 664 | 853 |
| 2016 | 675 | 751 |
| 2017 | 626 | 827 |
| 2018 | 684 | 1013 |
| 2019 | 948 | 1084 |
| 2020 | 1024 | 938 |
| 2021 | 912 | 953 |
| 2022 | 828 | 778 |
| 2023 | 727 | 701 |
| 2024 | 756 | 748 |
| 2025 | 589 | 500 |
| 2026 | 281 | 333 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02F 1/133602Direct backlight9,183
- G02F 1/133615Edge-illuminating devices, i.e. illuminating from the side3,400
- G02F 1/133614Using photoluminescence1,670
- G02F 1/133617Illumination with ultraviolet light1,166
- G02F 1/133621Providing coloured light1,159
- G02F 1/13362Providing polarized light876
- G02F 1/133628With cooling means742
- G02F 1/133616Front illuminating devices585
Recent patents
- Wavelength conversion member6 Oct 2026US 12,752,518 B2Nichia Corporation
- Backlight with optical film, illumination device therewith, and display screen6 Oct 2026US 12,754,447 B2siOPTICA GmbH
- Backlight module and method for manufacturing the same, and display device6 Oct 2026US 12,754,449 B2Shanghai Tianma Microelectronics Co., Ltd.
- Optical film, backlight, and display29 Sep 2026US 12,748,245 B23M Innovative Properties Company
- Color liquid crystal displays and display backlights29 Sep 2026US 12,748,253 B2Bridgelux, Inc.
- Wavelength conversion sheet, backlight, and liquid crystal display device8 Oct 2026US 2026/0308447 A1Dai Nippon Printing Co.Ltd.
- Virtual image display apparatus and optical unit8 Oct 2026US 2026/0309987 A1Seiko Epson Corporation
- Display device8 Oct 2026US 2026/0310021 A1Wuhan China Star Optoelectronics Technology Co., Ltd.
- Display assemblies with closed airflow pathways8 Oct 2026US 2026/0310022 A1Manufacturing Resources International, Inc.
- Display backlight including optical film having a transmission peak wavelength greater than an emission peak wavelength of the backlight8 Oct 2026US 2026/0310023 A13M Innovative Properties Company
Most cited
By later US patents
- Display apparatus1,024US 8,811,017 B2Sony Corporation · 2014
- Optical film968US 5,882,774 AMinnesota Mining and Manufacturing Company · 1999
- Plane light source and LCD backlight unit having the same491US 7,940,350 B2Samsung LED Co., Ltd. · 2011
- Uniform illumination system488US 7,072,096 B2Digital Optics International Corporation · 2006
- White light emitting device and white light source module using the same488US 7,959,312 B2Samsung LED Co., Ltd. · 2011