Title:
ACTIVE MATRIX TYPE SELF-LUMINOUS DISPLAY DEVICE AND ACTIVE MATRIX TYPE ORGANIC EL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP3670941
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce power consumption and manufacturing costs in a self- luminous display device such as an organic EL display device.
SOLUTION: In a self-luminous display device provided with a selective TFT 4 of which the gate is connected with a gate line 1 and the drain is connected with a data line 2, and a driving TFT 6 of which the gate is connected with the source of the selective TFT 4, a positive power source PV, the driving TFT 6, an orgnic EL light emitting element 7, and a negative power source CV are connected in series. Since a shift voltage for shifting a gate signal- luminous brightness correlation curve is applied to the negative power source CV, it is not necessary to raise a voltage not contributing to gradation display for a data signal. Therefore, the power consumption is reduced, and also the data signal can be produced by an ordinary CMOS process, and the production costs can be reduced.
Inventors:
Naoaki Komiya
Application Number:
JP2000231854A
Publication Date:
July 13, 2005
Filing Date:
July 31, 2000
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H01L51/50; G09F9/30; G09G3/20; G09G3/30; G09G3/32; H01L27/12; H05B33/00; H01L27/32; (IPC1-7): G09F9/30; G09G3/20; G09G3/30; H05B33/14
Domestic Patent References:
| JP10319872A | ||||
| JP61138259U | ||||
| JP63250873A |
Foreign References:
| WO1998036406A1 | ||||
| WO1998036407A1 |
Attorney, Agent or Firm:
Masamasa Shibano
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