Title:
COLUMN ELECTRODE DRIVING CIRCUIT AND DISPLAY DEVICE USING IT
Document Type and Number:
WIPO Patent Application WO2006090341
Kind Code:
A3
Abstract:
An object of the invention is to mitigate effect of variations of electrical characteristics or other performances of amplifiers used in a driving circuit system and combat the so-called artifact such as stripe patterns in displayed images even in a case of the same gray-scale of display. A column electrode driving circuit 33 of the invention comprises: signal supply means (7, 8, 9, 10, 20) for outputting a plurality of multiplexed information signals in which column information signals to be applied to at least two column electrodes Sl, S2, ... respectively are time-divisionally multiplexed; selecting means 30 having outputs of the same number as the multiplexed information signals for selecting any one of the outputs for each of the multiplexed information signals and outputting a multiplexed information signal from the selected output; and demultiplex means 40 for demultiplexing the multiplexed information signals outputted from the selecting means 30, respectively, and producing a column information signal to be applied to the corresponding column electrode. The selecting means 30 switches or sets a selecting state of the outputs for the multiplexed information signals at predetermined intervals.
Inventors:
HUANG ZHONG SHOU (CN)
Application Number:
PCT/IB2006/050589
Publication Date:
November 09, 2006
Filing Date:
February 24, 2006
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
PHILIPS ELECTRONICS JAPAN LTD (JP)
HUANG ZHONG SHOU (CN)
PHILIPS ELECTRONICS JAPAN LTD (JP)
HUANG ZHONG SHOU (CN)
International Classes:
G09G3/20; G09G3/36
Domestic Patent References:
| WO2001091427A2 | 2001-11-29 |
Foreign References:
| GB2325329A | 1998-11-18 | |||
| EP1329874A1 | 2003-07-23 |
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