G02F 2203/30
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G02F2203/30 (Gray scale) appears on 381 US grants and 356 published applications in this corpus.
Search patents in G02F- Granted patents
- 381
- Published applications
- 356
- Assignees
- 139
- Inventors
- 925
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 7 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 9 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 17 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 2 |
| 2002 | 2 | 4 |
| 2003 | 5 | 3 |
| 2004 | 3 | 2 |
| 2005 | 1 | 5 |
| 2006 | 3 | 12 |
| 2007 | 3 | 10 |
| 2008 | 1 | 8 |
| 2009 | 4 | 17 |
| 2010 | 9 | 28 |
| 2011 | 9 | 19 |
| 2012 | 20 | 18 |
| 2013 | 14 | 6 |
| 2014 | 20 | 11 |
| 2015 | 13 | 7 |
| 2016 | 6 | 6 |
| 2017 | 5 | 27 |
| 2018 | 15 | 33 |
| 2019 | 24 | 28 |
| 2020 | 33 | 30 |
| 2021 | 28 | 26 |
| 2022 | 24 | 19 |
| 2023 | 18 | 16 |
| 2024 | 15 | 12 |
| 2025 | 9 | 6 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electronic device15 Sep 2026US 12,738,210 B2Innolux Corporation
- Display device21 Apr 2026US 12,607,885 B2E Ink Corporation
- Touch display device having insulating layer with different thickness10 Mar 2026US 12,572,040 B2Innolux Corporation
- Self-isolated nanoscale laser10 Feb 2026US 12,548,964 B2The Board of Trustees of the Leland Stanford Junior University
- Display panel16 Sep 2025US 12,416,839 B2Hannstar Display Corp.
- Liquid crystal display apparatus, electronic device, and control method for high grayscale region display17 Sep 2026US 2026/0279294 A1Hkc Corporation Limited
- Method for driving variable transmission display8 May 2025US 2025/0147375 A1E Ink Corporation
- Display device and operation method for heating display panel17 Apr 2025US 2025/0123512 A1Novatek Microelectronics Corp.
- Display panel and display device27 Feb 2025US 2025/0068015 A1Tcl China Star Optoelectronics Technology Co., Ltd.
- Electronic device27 Feb 2025US 2025/0069545 A1Innolux Corporation
Most cited
By later US patents
- Ferroelectric display panel and driving method therefor to achieve gray scale233US 4,709,995 ACanon Kabushiki Kaisha · 1987
- Active matrix type electro-optical device185US 5,612,799 ASemiconductor Energy Laboratory Co.Ltd. · 1997
- Electro-optical device and driving method for the same168US 5,899,547 ASemiconductor Energy Laboratory Co.Ltd. · 1999
- Electro-optical device and driving having an improved electrode and driving arrangement134US 5,495,353 ASemiconductor Energy Laboratory Co.Ltd. · 1996
- Micro-ridged, polymeric liquid crystal display substrate and display device116US 5,268,782 AMinnesota Mining and Manufacturing Company · 1993