Title:
EL DRIVER CIRCUIT
Document Type and Number:
Japanese Patent JP2000194322
Kind Code:
A
Abstract:
To provide a EL driver circuit which is high in light emission efficiency and is reduced in a cost.
A series resonance circuit is formed by an EL panel (CEL) and a coil (L1) and the circuit, is connected to a push-pull driver 2 via a forward feedback route 6 by the invention. The EL panel CEL is driven by a forward sinusoidal drive signal to emit light. Further, the voltage level of the EL panel drive signal is adjusted according to a change in the capacitance value of the EL panel CEL, by which the light emission luminance of the EL panel CEL is maintained constant.
Inventors:
MIHARA MASAAKI
Application Number:
JP37454598A
Publication Date:
July 14, 2000
Filing Date:
December 28, 1998
Export Citation:
Assignee:
ST MICROELECTRONICS KK
International Classes:
G09G3/20; G09G3/30; (IPC1-7): G09G3/30; G09G3/20
Attorney, Agent or Firm:
Kazuo Kobashi (1 person outside)
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