Title:
CONTROL CIRCUIT FOR ELECTRONIC ELEMENT, ELECTRONIC CIRCUIT, ELECTROOPTICAL DEVICE, DRIVE METHOD FOR ELECTROOPTICAL DEVICE, AND ELECTRONIC APPARATUS, AND CONTROL METHOD FOR ELECTRONIC ELEMENT
Document Type and Number:
WIPO Patent Application WO/2003/091981
Kind Code:
A1
Abstract:
An electronic circuit suitably controlling variations in brightness and the brightness values of pixels with high precision, wherein a data line drive circuit (102) controls, for each period T1, the current value IDAB of a control signal based on the digital data DAB of high-order bits out of digital data In, and subjects, based on the digital data SUB of low-order bits out of digital data In, the portions of a control signal that are D/A converted based on the same digital data to pulse width control at period T2.
Inventors:
YAMADA TADASHI
Application Number:
PCT/JP2003/005310
Publication Date:
November 06, 2003
Filing Date:
April 24, 2003
Export Citation:
Assignee:
SEIKO EPSON CORP (JP)
International Classes:
B32B9/04; G09G3/20; H01L51/50; G09G3/30; G09G3/32; H05B33/14; (IPC1-7): G09G3/30; H05B33/14
Domestic Patent References:
| WO1999065011A2 | 1999-12-16 |
Foreign References:
| JP2000056727A | 2000-02-25 | |||
| JPH07181917A | 1995-07-21 | |||
| JPH04136983A | 1992-05-11 | |||
| JPH11326870A | 1999-11-26 | |||
| JPH11237606A | 1999-08-31 | |||
| JP2001056667A | 2001-02-27 | |||
| JPH04328791A | 1992-11-17 | |||
| JP2003150104A | 2003-05-23 |
Other References:
See also references of EP 1450344A4
Attorney, Agent or Firm:
Kamiyanagi, Masataka c/o Intellectual Property Department (SEIKO EPSON CORPORATION 3-5, Owa 3-Chom, Suwa-Shi Nagano, JP)
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