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CPC Subgroup Additional Only
G09G 2300/0842

forming a memory circuit, e.g. a dynamic memory with one capacitor

Full Title

Aspects of the constitution of display devices > Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements > Several active elements per pixel in active matrix panels > forming a memory circuit, e.g. a dynamic memory with one capacitor

4 direct subcodes

Child Classifications

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  • G09G 2300/0847 being a dynamic memory without any storage capacitor, i.e. with use of parasitic capacitances as storage elements
  • G09G 2300/0852 being a dynamic memory with more than one capacitor
  • G09G 2300/0857 Static memory circuit, e.g. flip-flop

Top Applicants

Top 10 applicants by patent filingsfor class G09, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG DISPLAY KR 22,477
  2. BOE TECHNOLOGY GROUP COMPANY CN 16,016
  3. BOE TECHNOLOGY GROUP COMPANY 12,918
  4. LG DISPLAY COMPANY KR 12,599
  5. SAMSUNG ELECTRONICS COMPANY KR 12,009
  6. SAMSUNG DISPLAY 6,252
  7. SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 4,410
  8. SONY CORPORATION JP 3,965
  9. LG ELECTRONICS KR 3,901
  10. LG DISPLAY COMPANY 3,705