Title:
SEGMENT CONTROL LED DRIVE ELEMENT
Document Type and Number:
Japanese Patent JP2012009404
Kind Code:
A
Abstract:
To provide a segment control LED drive element which is suitable for driving a plurality of LEDs arranged in an array shape.
A drive element registers a group channel signal in a group channel data area and registers a current count value in a count data area when receiving a latch permission signal for a segment. The drive element updates a luminance signal in a buffer circuit via a designated channel in the group channel data area when receiving a latch permission signal for segment update. A comparison circuit outputs a drive signal for driving a LED by segment update in accordance with the registered count value, a real-time count value, and the updated luminance signal.
More Like This:
| JP2017050063 | ILLUMINATION LAMP, LUMINAIRE AND LIGHTING METHOD FOR ILLUMINATION LAMP |
| JPH11214175 | LIGHTING SYSTEM |
| JPH06111981 | LIGHTING SYSTEM |
Inventors:
YI JIN-YUNG
YI KWING-BIN
ZHENG YANGQI
YI KWING-BIN
ZHENG YANGQI
Application Number:
JP2010196740A
Publication Date:
January 12, 2012
Filing Date:
September 02, 2010
Export Citation:
Assignee:
MACROBLOCK INC
International Classes:
H05B37/02; G02F1/133; H01L33/00; H03K17/78; H05B44/00
Domestic Patent References:
| JP2007067853A | 2007-03-15 | |||
| JP2010109327A | 2010-05-13 | |||
| JP2006245308A | 2006-09-14 | |||
| JP2010122669A | 2010-06-03 | |||
| JP2007067853A | 2007-03-15 | |||
| JP2010109327A | 2010-05-13 | |||
| JP2006245308A | 2006-09-14 |
Foreign References:
| WO2010004871A1 | 2010-01-14 |
Attorney, Agent or Firm:
Sakuo Yamaguchi