Title:
有機発光ダイオード表示器用のピクセル電流ドライバ
Document Type and Number:
Japanese Patent JP4383743
Kind Code:
B2
Abstract:
A pixel current driver comprises a plurality of thin film transistors (TFTs) each having dual gates and for driving OLED layers. A top gate of the dual gates is formed between a source and a drain of each of the thin film transistors, to thereby minimize parasitic capacitance. The top gate is grounded or electrically tied to a bottom gate. The plurality of thin film transistors may be two thin film transistors formed in voltage-programmed manner or five thin film transistors formed in a current-programmed V T -compensated manner. Other versions of the current-programmed circuit with different numbers of thin film transistors are also presented that compensate for ´V T . The OLED layer are continuous and vertically stacked on the plurality of thin film transistors to provide an aperture ratio close to 100%.
Inventors:
Nathan, Aroquia
Salvati, Peyman
Sakarya, Kapil
Salvati, Peyman
Sakarya, Kapil
Application Number:
JP2002566552A
Publication Date:
December 16, 2009
Filing Date:
February 18, 2002
Export Citation:
Assignee:
IGNIS INNOVATION INCORPORATED
International Classes:
G09F9/30; H01L51/50; G09G3/20; G09G3/30; G09G3/32; H01L21/336; H01L27/15; H01L27/32; H01L29/786; H01L27/12
Domestic Patent References:
| JP2000056847A | ||||
| JP2000352941A | ||||
| JP2001119032A | ||||
| JP2004054188A | ||||
| JP2002124377A | ||||
| JP2002333862A | ||||
| JP2148687A |
Foreign References:
| WO2001006484A1 |
Attorney, Agent or Firm:
Masumi Hosoda
So Ishii
Juno Aoki
So Ishii
Juno Aoki