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CPC Subgroup Additional Only
G09G 2300/0809

Several active elements per pixel in active matrix panels

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

7 direct subcodes

Child Classifications

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  • G09G 2300/0814 used for selection purposes, e.g. logical AND for partial update
  • G09G 2300/0819 used for counteracting undesired variations, e.g. feedback or autozeroing
  • G09G 2300/0823 used to establish symmetry in driving, e.g. with polarity inversion
  • G09G 2300/0828 forming a digital to analog [D/A] conversion circuit
  • G09G 2300/0871 with level shifting

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