Title:
TEMPERATURE CORRECTING METHOD FOR LCD DRIVING VOLTAGE DISPLAY
Document Type and Number:
Japanese Patent JP2003307775
Kind Code:
A
Abstract:
To provide an LCD driving voltage correcting method which can make a clear display even when the temperature of an integrated circuit rises by self-heating.
When a power system is driven, a power drive flag is set to 'ON', the time after the power system is driven is counted to check whether or not the time exceeds a prescribed time, and the power drive is set to 'OFF' the prescribed time later. When the power drive flag is not set to 'OFF', the output of a D/A converter is inhibited from being set according to the output of a temperature measuring circuit.
Inventors:
KUNISHIGE KEIJI
MIYAZAWA AZUMA
MIYAZAWA AZUMA
Application Number:
JP2003099508A
Publication Date:
October 31, 2003
Filing Date:
March 16, 1993
Export Citation:
Assignee:
OLYMPUS OPTICAL CO
International Classes:
G02F1/133; G02B7/28; G02B7/32; G03B7/08; G03B7/081; G03B7/091; G03B7/099; G03B13/36; G03B17/00; G03B17/02; G03B17/18; G06F15/78; G09G3/04; G09G3/18; H01L21/822; H01L21/8222; H01L21/8248; H01L21/8249; H01L27/04; H01L27/06; H03M1/38; H03M1/74; H04N5/232; (IPC1-7): G03B17/18; G02F1/133; G03B17/02; G09G3/04; G09G3/18
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)
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