Title:
SIGNAL LINE DRIVE CIRCUIT IN IMAGE DISPLAY APPARATUS
Document Type and Number:
Japanese Patent JP3920860
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve a problem wherein the smooth control of color is hindered by an on-resistance of a switch in a signal line drive circuit in an image display apparatus.
SOLUTION: The on-resistance of each switch in an upper selection circuit 312 is adjusted in accordance with a reference gradation voltage of a reference gradation voltage line 202 to which each switch is connected, and a dividing resistance of a ladder resistance 330. Circuit configuration for the upper selection circuit 312 and a lower selection circuit 334 is constituted of a combination of an extrinsic logic type circuit and an intrinsic logic type circuit. Thus, color on the image display apparatus is smoothly controlled.
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Inventors:
Eiji Taguchi
Shoichiro Matsumoto
Shoichiro Matsumoto
Application Number:
JP2004058275A
Publication Date:
May 30, 2007
Filing Date:
March 02, 2004
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
G02F1/133; G09G3/20; G09G3/36; H03M1/76; (IPC1-7): G09G3/20; G02F1/133; G09G3/36; H03M1/76
Domestic Patent References:
| JP9198012A | ||||
| JP2001282168A | ||||
| JP9258695A | ||||
| JP2130586A |
Attorney, Agent or Firm:
Sakaki Morishita