Arrangement for displaying images using light emitting diodes

• US 4,365,244 A
• Filed: 03/25/1981
• Issued: 12/21/1982
• Est. Priority Date: 04/03/1980
• Status: Expired due to Fees

• Current Assignee: Telefunken Electronic GmbH (Continental AG)
• Original Assignee: Licentia Patent-Verwaltungs-GmbH (AB Electrolux)
• Inventors: Siegle, Martin, Schairer, Werner, Rinderle, Heinz, Gillessen, Klaus, Malinowski, Christoph
• Primary Examiner(s): TRAFTON, DAVID
• Application Number:
  US06/247,596
• Time in Patent Office: 636 Days
• Field of Search: 340/782, 340/825.82
• US Class Current: 345/82
• CPC Class Codes: G09F 9/33 being semiconductor devices, e.g. diodes
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]

Abstract

An arrangement for displaying images using light emitting diodes comprises two types of modules arranged to form a square matrix with the modules of one diagonal being of the first type and the remaining modules being of the second type, the first type having the same number of horizontal and column lines with each horizontal line connected to only one column line and the remaining crossing points having light emitting diodes connected between the horizontal and column lines and the second type having the same number of horizontal and column lines as the first type and light emitting diodes connected between horizontal and column lines at each crossing point.

Claims

1. An arrangement for displaying images using light-emitting diodes comprising two types of modules, of which a first type of module has a matrix-type wiring with the same number of horizontal and columns lines, each horizontal line being connected to one and only one column line and, with the exception of those crossing points at which the crossing horizontal and column lines are connected together, one light-emitting diode being arranged at each crossing point between a column line and a horizontal line, one connection of each said light-emitting diode being connected respectively with the horizontal line present at the crossing point and the other connection being connected in each case to the column line present at the crossing point;

and a second type of module has matrix wiring with the same number of horizontal lines as column lines, which number is the same as in the first type of module;

one light-emitting diode in each case being arranged at each crossing point between horizontal and column lines of the second type of module, one connection being connected in each case to the horizontal line present at the crossing point and the other connection being connected respectively to the column line present at the crossing point;

the arrangement being formed like a square matrix comprising the two types of module with the modules of a diagonal of the matrix comprising modules of the first type and the remaining elements of the matrix comprising modules of the second type, each module of a horizontal line being connected to its adjacent module(s) in the horizontal line and each module of a column being connected to its adjacent module(s) in the column line such that each horizontal line and each column line of a module is connected respectively to the same horizontal or column line respectively if its adjacent module.

2. An arrangement as defined in claim 1, wherein the light-emitting diodes of a horizontal line in a matrix have the same spacing from each other and that the light emitting diodes of a column line in a matrix also have the same spacing from each other.

3. An arrangement for displaying images using light emitting diodes comprising a square matrix of modules, a first type of module occupying one diagonal of said matrix and comprising the same number of horizontal lines and column lines, means for connecting each horizontal line to only a single column line and light emitting diodes connected between said horizontal lines and said column lines at all crossing points at which said horizontal lines and column lines are not interconnected and a second type of module occupying all the remaining places in said matrix having the same number of horizontal lines and column lines as said first type of module and light emitting diodes connected between said horizontal lines and said column lines at each crossing point.