Display Power Management Patents: Top Companies & Trends 2026
- One assignee dominates the ranked field. the leader holds 385 records against a fifth-place count of 47 and a tenth-place count of 12, a steep drop-off rather than an even spread.
- Filing has cooled from its 2017 peak. 156 records that year versus a confirmed -75% swing from 85 filings in 2021 to 21 in 2024, the last year the data can treat as complete.
- G09G display-control circuitry dominates the technology mix. 76.5% of the 771 records in scope carry a G09G classification, far ahead of the semiconductor-device classes that sit near 22%.
Filing growth compares 2021 (85 records) with 2024 (21) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field.
What this landscape covers
This landscape tracks patent families addressing display power management and compensation — the circuits and algorithms that correct for pixel-level degradation, drive current variation and startup transients in emissive displays. The search combines terms for external compensation and pixel compensation circuits with terms for the specific problems they solve: sensing of degradation, current programming, image sticking, power rail design, compensation algorithms and startup transients. The scope spans 771 published records from 2015 through the mid-2026 cut-off.
Because publication trails filing by roughly 18 months, the most recent one to two years in any trend chart will always look thinner than they eventually turn out to be. Read the 2024 figure as the last reasonably complete year, and treat 2025 and 2026 as still filling in.
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Filing trend and technology composition
Two views of the same 771-record set: how filing activity has moved year over year, and which IPC subclasses the underlying inventions actually sit in.
Filing trend, 2017–2024
Filings peaked at 156 in 2017. The confirmed decline from 85 filings in 2021 to 21 in 2024 — a -75% change over that span — is the clearest read available; years after 2024 are still incomplete due to publication lag and should not be read as a continued fall.
IPC subclass distribution
G09G (display control circuits) appears in 76.5% of the 771 records, confirming that most inventions here are framed as control-circuit problems rather than pure materials or panel-structure problems. H01L and H10K semiconductor-device classes each cover 22.3% of records, reflecting how much compensation circuitry is claimed at the transistor level. Smaller shares in G06F, G11C, H04N, G02F and H10D mark adjacent areas — data processing, memory, video signalling, optical modulation — where compensation work overlaps other systems. Since records can carry multiple classes, these shares sum to well over 100%.
Shares are the percentage of the 771 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Display Power Management and Compensation with Eureka
This page is one run against one query. Ask Eureka your own question about display power management and compensation and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative and most-cited filings
US10984712B2 — TFT pixel circuit for OLED external compensation using an adjusted data voltage for component compensation
A display system includes a pixel circuit and an external compensation system that is operable with the pixel circuit to compensate for differences in a property of the drive transistor and/or light-emitting device. The pixel circuit includes a drive transistor configured to control an amount of current to a light-emitting device; a second transistor with a first terminal connected to the gate of the drive transistor and a second terminal connected to a data voltage input supplied by the external compensation system; and a third transistor connected to the drive transistor, together forming the sensing and adjustment path the external compensation system relies on.Filed by Sharp; granted 2021-04-20.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | CA2443206A1 | Amoled display backplanes – pixel driver circuits, array architecture, and external compensation | 230 |
| 2 | CA2567076A1 | Voltage-programming scheme for current-driven amoled displays | 218 |
| 3 | US7880400B2 | Digital driver apparatus, method and system for solid state lighting | 207 |
| 4 | US20060274026A1 | Systems and Methods for Selecting a Display Source Light Illumination Level | 173 |
| 5 | US20110122119A1 | Organic light emitting diode display and method for driving the same | 158 |
| 6 | US20100053222A1 | Methods and Systems for Display Source Light Management with Rate Change Control | 145 |
| 7 | US20090079355A1 | Digital Driver Apparatus, Method and System for Solid State Lighting | 142 |
| 8 | US20110216056A1 | Organic light emitting display and driving method thereof | 126 |
| 9 | US20070291048A1 | Systems and Methods for Tone Curve Generation, Selection and Application | 122 |
| 10 | US20070133234A1 | System and method for a primary feedback switched mode power supply | 118 |
Citation counts are strongest for older filings simply because they have had longer to accumulate citations within the corpus — treat them as a signal of influence on subsequent filers, not as a ranking of current relevance.
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Browse MCP servers →What the numbers mean for filing strategy
Three findings that change where a team should look before drafting new claims in this space.
One assignee sets the pace, then activity drops sharply
The gap between the leader's 385 records and the fifth-place count of 47 is large enough that most of the remaining 46 ranked companies are working around, not against, the leader's existing claim positions.
Volume has pulled back from its 2017 peak
The 156 filings recorded in 2017 have not been matched since, and the confirmed drop from 85 to 21 filings between 2021 and 2024 points to a maturing, more selective filing pattern rather than an expanding one.
Control-circuit framing dominates over materials framing
Nearly three-quarters of records classify under G09G display control circuits, while H01L and H10K semiconductor-device classes each sit around 22%. Compensation work is claimed primarily as circuit and signal-processing logic, not as a materials or panel-architecture problem.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to display power management and compensation, with the prior art for and against each one.
| Assignee | Co-assignee | Shared families |
|---|---|---|
| BOE Technology Group Co., Ltd. | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | 51 |
| BOE Technology Group Co., Ltd. | Hefei BOE Zhuoyin Technology Co., Ltd. | 45 |
| BOE Technology Group Co., Ltd. | Chengdu BOE Optoelectronics Technology Co., Ltd. | 15 |
| BOE Technology Group Co., Ltd. | Beijing BOE Technology Development Co., Ltd. | 14 |
| LG Display Co., Ltd. | Saint Petersburg State University of Aerospace Instrumentation | 12 |
| Sharp Corporation | KEROFSKY LOUIS JOSEPH | 9 |
| BOE Technology Group Co., Ltd. | Ordos Yuansheng Optoelectronics Co., Ltd. | 4 |
| BOE Technology Group Co., Ltd. | Hefei BOE Display Technology Co., Ltd. | 4 |
Only 10 co-assignee pairs appear in this dataset, and the strongest pairings link a large group assignee to its own regional subsidiaries rather than to independent partners — a sign that most compensation IP here is developed in-house rather than through cross-company collaboration.
Who is active, and where the gaps sit
The ranked field runs 46 companies deep, but the useful read is not the full order — it is where filing has concentrated and where it visibly has not.
A single assignee dominates by volume
The leading assignee's 385 records dwarf the rest of the ranked field, meaning most external-compensation and pixel-driver architectures already have a dense prior-art layer from one source alone.
A steep drop-off after the top few names
Filing counts fall from 47 at fifth place to 12 at tenth, indicating a small group of active filers rather than a broad, evenly distributed competitive set.
Momentum has stalled across the board, not just for one filer
Several previously active assignees show 0 filings in the latest tracked year with -100% year-over-year swings. Given the roughly 18-month publication lag, this reads as an incomplete latest year rather than a genuine stop in R&D.
| Assignee | Recent year | YoY |
|---|---|---|
| LG Display Co., Ltd. | 0 | -100% |
| BOE Technology Group Co., Ltd. | 0 | -100% |
| Sharp Corporation | 0 | — |
| Hefei Xinsheng Optoelectronics Technology Co., Ltd. | 0 | -100% |
| Hefei BOE Zhuoyin Technology Co., Ltd. | 0 | -100% |
| Sharp Laboratories of America, Inc. | 0 | — |
| Ignis Innovation Inc. | 0 | — |
| Chengdu BOE Optoelectronics Technology Co., Ltd. | 0 | -100% |
Where to take this next
The landscape points to where claim space is dense and where it is not. Turning that into a filing or freedom-to-operate decision requires digging into the actual claim language.
Check freedom-to-operate against the leader's portfolio
With one assignee holding 385 of the ranked records, any new pixel-compensation or external-compensation filing should be checked against that portfolio's independent claims before drafting begins.
Explore assignee claims in EurekaMap the under-claimed branches in detail
The smaller IPC classes — G06F, G11C, G02F — carry far fewer records than G09G and may hold room for a defensible first claim if the specific combination has not already been staked out.
Run a white-space search in EurekaCommon questions about this landscape
One assignee leads the ranked field with 385 records, well ahead of the fifth-place company at 47 and the tenth-place company at 12. That gap suggests the leader has built out a broad base of external-compensation and pixel-driver circuit claims that any new entrant needs to check against. The ranking covers 46 companies in total, so this is a concentrated field rather than one with many roughly equal competitors.
Filing peaked at 156 records in 2017 and has since pulled back, with a confirmed drop from 85 filings in 2021 to 21 in 2024 — a -75% change over that span. Because publication lags filing by around 18 months, the 2025 and 2026 figures in any chart are still incomplete and should not be read as evidence of a continued decline. Treat 2024 as the last year with a reasonably complete picture.
External compensation refers to circuitry and algorithms that sense variation in a pixel's drive transistor or light-emitting device — caused by manufacturing variation or aging — and adjust the data voltage supplied to that pixel to correct for it. It sits apart from purely internal, in-pixel compensation schemes because the sensing and correction logic lives outside the pixel circuit itself. Representative filings in this dataset, such as US10984712B2, claim specific transistor arrangements that route a sensed or adjusted data voltage back into the pixel's drive path.
G09G display control circuits appear in 76.5% of the 771 records in this landscape, making it by far the densest classification. H01L and H10K semiconductor-device classes each cover 22.3% of records, reflecting substantial transistor-level claiming alongside the circuit-level work. Smaller classes like G06F, G11C, G02F and H10D each cover under 4% of records and represent comparatively lighter-claimed overlap areas with data processing, memory, optical modulation and general semiconductor design.
The classes with the smallest share of the 771 records — G06F digital data processing at 3.6%, G11C memory at 3.2%, G02F optical modulation at 2.5% and H10D general semiconductor devices at 2.2% — show far less overlap with the dominant G09G control-circuit filings. That does not guarantee open claim space, but it does mean fewer competing filings have staked out compensation schemes that lean on data-processing, memory-assisted or optical-modulation approaches. A freedom-to-operate search focused on those combinations is a reasonable next step before drafting.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.