Title:
LED DEVICE
Document Type and Number:
Japanese Patent JPH0664228
Kind Code:
A
Abstract:
PURPOSE: To uniformize the quantity of light emitted from all of LED elements in an LED device used in an LED printer and having a large number of LED elements arranged therein in a row.
CONSTITUTION: A power supply line pattern 2 for supplying power to the driving IC 9a, 9b... arranged corresponding to LED chips 8a, 8b... are provide and has a folded-back part 2b. By this constitution, power can be supplied to the respective LED chips 8a, 8b... in the direction opposite to a negative voltage supply line pattern 7 and voltage can be uniformly applied to all of LED elements.
Inventors:
TSUCHIYA SHIZUO
Application Number:
JP22297692A
Publication Date:
March 08, 1994
Filing Date:
August 21, 1992
Export Citation:
Assignee:
CASIO ELECTRONICS MFG CO
CASIO COMPUTER CO LTD
CASIO COMPUTER CO LTD
International Classes:
B41J2/44; B41J2/45; B41J2/455; H01L33/08; H01L33/48; H04N1/036; (IPC1-7): B41J2/44; B41J2/45; B41J2/455; H01L33/00; H04N1/036
Attorney, Agent or Firm:
Yoshiyuki Osuge
Next Patent: OPTICAL PRINTING HEAD