Technology Topic
Display Technology Patent Classification
Display patents split along the stack. The organic side, OLED devices and materials, classifies in H10K, a subclass established in 2023 for organic solid-state devices.
Liquid-crystal optics sit in G02F for devices that control light, and the driving electronics, pixel addressing, refresh, power management, classify in G09G for display control circuits.
The classification codes that matter
ORGANIC ELECTRIC SOLID-STATE DEVICES
Organic solid-state devices: OLED displays and materials, established as a subclass in 2023.
2018 → 2023: 13,931 → 28,969 filings (+108 %)
OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL…
Light-control devices: the optical heart of LCD technology.
2018 → 2023: 28,195 → 19,539 filings (-31 %)
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT…
Display control: driving circuits, pixel addressing and refresh logic for any display type.
2018 → 2023: 19,184 → 17,866 filings (-7 %)
Who files here: top applicants
- 1 BOE TECHNOLOGY GROUP COMPANY (CN) 65,426
- 2 SAMSUNG DISPLAY (KR) 59,747
- 3 SAMSUNG ELECTRONICS COMPANY (KR) 30,317
- 4 LG DISPLAY COMPANY (KR) 29,669
- 5 SEMICONDUCTOR ENERGY LABORATORY COMPANY (JP) 20,923
IPC filings 2013–2023, aggregated across the codes above. Source: EPO PATSTAT.
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