H04N 9/3155
For controlling the light source
Official title: {for controlling the light source (light source control per se H05B35/00 – H05B47/00; control of an illumination source for displays in general G09G3/3406)}
H04N9/3155 (For controlling the light source) appears on 1,237 US grants and 1,459 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,237
- Published applications
- 1,459
- Assignees
- 345
- Inventors
- 2,031
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 9 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 11 | 7 |
| 2002 | 5 | 12 |
| 2003 | 11 | 21 |
| 2004 | 9 | 13 |
| 2005 | 10 | 28 |
| 2006 | 15 | 39 |
| 2007 | 26 | 63 |
| 2008 | 29 | 73 |
| 2009 | 23 | 68 |
| 2010 | 46 | 50 |
| 2011 | 36 | 48 |
| 2012 | 47 | 57 |
| 2013 | 55 | 60 |
| 2014 | 54 | 55 |
| 2015 | 52 | 60 |
| 2016 | 69 | 95 |
| 2017 | 84 | 134 |
| 2018 | 112 | 106 |
| 2019 | 124 | 92 |
| 2020 | 88 | 93 |
| 2021 | 76 | 69 |
| 2022 | 67 | 52 |
| 2023 | 38 | 49 |
| 2024 | 46 | 52 |
| 2025 | 37 | 37 |
| 2026 | 32 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Display system, non-transitory computer-readable storage medium storing program, and control device6 Oct 2026US 12,756,801 B2Seiko Epson Corporation
- Illumination device8 Sep 2026US 12,732,598 B2Sony Group Corporation
- Image display device1 Sep 2026US 12,726,598 B2Innolux Corporation
- Projector control method and projector device1 Sep 2026US 12,726,600 B2Benq Corporation
- Illumination device, method of controlling illumination device, and projection display apparatus25 Aug 2026US 12,717,223 B2Sony Group Corporation
- Pixel shifting methods in projection systems8 Oct 2026US 2026/0313079 A1Dolby Laboratories Licensing Corporation
- Device for displaying artificial sun-based content17 Sep 2026US 2026/0281287 A1LG Electronics Inc.
- Projector and control method therefor3 Sep 2026US 2026/0261638 A1Samsung Electronics Co., Ltd.
- Instant-on ambient visual projection device20 Aug 2026US 2026/0246897 A1Zhongshan Bolang Electronic Technology Co., Ltd.
- Projection display device and method of controlling projection display device23 Jul 2026US 2026/0212835 A1JVCKENWOOD Corporation
Most cited
By later US patents
- Variable intensity high contrast passive display504US 5,717,422 A1998
- High intensity lighting projectors319US 5,282,121 AVari-Lite, Inc. · 1994
- System and method employing LED light sources for a projection display246US 6,224,216 B1InFocus Corporation · 2001
- Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching238US 6,816,141 B1Fergason Patent Properties, LLC · 2004
- Optical display system and method with optical shifting of pixel position including conversion of pixel layout to form delta to stripe pattern by time base multiplexing229US 6,243,055 B12001