Title:
発光型表示装置用の低電力回路及び駆動方法
Document Type and Number:
Japanese Patent JP5715063
Kind Code:
B2
Abstract:
A display system, a driver for driving the display array, method of operating the display system and a pixel circuit in the display system are provided. The driver includes: a bidirectional current source having a convertor coupling to a time-variant voltage, for converting the time-variant voltage to the current. The pixel circuit includes: a transistor for providing a pixel current to a light emitting device; and a storage capacitor electrically coupling to the transistor, the capacitor coupling to a time-variant voltage in a predetermined timing for providing a current based on the time-variant voltage. The method includes: in a first cycle in a programming operation, changing a time-variant voltage provided to a storage capacitor in a pixel circuit, from a reference voltage to a programming voltage, the storage capacitor electrically coupling to a driving transistor for driving a light emitting device; and in a second cycle in the programming operation, maintaining the time-variant voltage at the programming voltage. The method includes: in a programming operation, providing programming data to a pixel circuit from a data line, the pixel circuit including a transistor coupling to the data line and a storage capacitor; and in a driving operation, providing, to the storage capacitor in the pixel circuit via a power supply line, a time-variant voltage for turning on a light emitting device. The pixel circuit, which includes: an organic light emitting diode (OLED) device having an electrode and an OLED layer; and an inter-digitated capacitor having a plurality of layers.
Inventors:
Chaji, Gee Reza
Nathan, Aroquia
Nathan, Aroquia
Application Number:
JP2011539859A
Publication Date:
May 07, 2015
Filing Date:
December 08, 2009
Export Citation:
Assignee:
IGNIS INNOVATION INCORPORATED
International Classes:
G09G3/30; G09G3/20; G09G3/3208
Domestic Patent References:
| JP10319908A | ||||
| JP2001350431A | ||||
| JP2008519305A | ||||
| JP2006154730A | ||||
| JP2010079159A | ||||
| JP2007065539A | ||||
| JP2008521033A | ||||
| JP2004341444A |
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office
Akio Chiba
Akio Chiba