Title:
IMAGE DISPLAY UNIT
Document Type and Number:
Japanese Patent JP3769337
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To perform the display of high speed high contrast ratio and low crosstalk by using a plural line simultaneous selection method, by largely setting the current supply capacity of a power source which supplies a part of voltage level of which the load by a display is high.
SOLUTION: A scanning electrode is classified into plural subgroups by L lines (L is an integer of 2-8), and the specific voltage is applied to a scanning electrode belonging to one sub-group, for collectively selecting the sub-group. The current supply capacity of a power source which supplies a part of the voltage level of which the load by the display is high, is set to be larger than that of a power source which supplies the other voltage level. Each voltage level obtained by the division of the resistance, is output to a power source circuit as V0-V4 through the operation amplifier OP0-PO4. For example, when the load is concentrated on V1, V3, the current supply capacity of the operation amplifiers OP1, OP3 connected with V1, V3 are controlled to be larger than V0, V2, V4.
Inventors:
Satoshi Nakazawa
Kazuyoshi Kawaguchi
Yoshinori Hirai
Kazuyoshi Kawaguchi
Yoshinori Hirai
Application Number:
JP32571296A
Publication Date:
April 26, 2006
Filing Date:
December 05, 1996
Export Citation:
Assignee:
Asahi Glass Co., Ltd.
Optrex Co., Ltd.
Optrex Co., Ltd.
International Classes:
G02F1/133; G09G3/36; G09G3/20; (IPC1-7): G09G3/36; G02F1/133; G02F1/133
Domestic Patent References:
| JP6027907A | ||||
| JP6214530A | ||||
| JP5196916A | ||||
| JP8160390A | ||||
| JP6289816A |
Attorney, Agent or Firm:
Rock wall Fuyuki
Makoto Shiokawa
Makoto Shiokawa
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