LED display

• US 20110140992A1
• Filed: 12/16/2009
• Published: 06/16/2011
• Est. Priority Date: 12/16/2009
• Status: Abandoned Application

• Current Assignee: Isign Display Systems, LLC
• Original Assignee: Isign Display Systems, LLC
• Inventors: Zheng, Zhongliang
• Application Number:
  US12/639,047
• Publication Number:
  US 20110140992A1
• Time in Patent Office: Days
• US Class Current: 345/1.3
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G09G 2300/026 Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
• CPC Class Codes: G09G 3/2088 with use of a plurality of processors, each processor controlling a number of individual elements of the matrix
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]

Abstract

A LED display includes a plurality of LED units connected together; a plurality of unit controller connected one after another mounted to the plurality of LED units respectively, wherein each unit controller comprises a direction setup element, indicating position relationship with next connected unit controller, wherein the direction setup element is set up during physical connection of the unit controller; and a main controller, connected with each unit controller, determining position of each LED unit in the LED display via the position relationship information set up by the direction setup element.

Claims

1. A LED display, comprising:

a plurality of LED units connected together;

a plurality of unit controller connected one after another mounted to the plurality of LED units respectively, wherein each unit controller comprises a direction setup element, indicating position relationship with next connected unit controller, wherein the direction setup element is set up during physical connection of the unit controller; and

a main controller, connected with each unit controller, determining position of each LED unit in the LED display via the position relationship information set up by the direction setup element.

2. The LED display, as recited in claim 1, wherein the direction setup element is embodied as a 2 position DIP switch having four combinations representing four possible directions of the next unit controller with respect to the present unit controller, including left, right, up and down.

3. The LED display, as recited in claim 1, wherein each unit controller has a signal input and a signal output, the signal input of the first unit controller is connected with the main controller, the signal input of the rest unit controller is connected with the signal output of the previous connected unit controller, and the signal output of the last unit controller is idle.

4. The LED display, as recited in claim 2, wherein each unit controller has a signal input and a signal output, the signal input of the first unit controller is connected with the main controller, the signal input of the rest unit controller is connected with the signal output of the previous connected unit controller, and the signal output of the last unit controller is idle.

5. The LED display, as recited in claim 1, wherein each LED unit comprises a plurality of display modules connected together, each display module having an input interface, and each unit controller has a plurality of output interface connected with the input interfaces of the plurality of display modules respectively.

6. The LED display, as recited in claim 2, wherein each LED unit comprises a plurality of display modules connected together, each display module having an input interface, and each unit controller has a plurality of output interface connected with the input interfaces of the plurality of display modules respectively.

7. The LED display, as recited in claim 5, wherein each display module comprises a memory, storing the resolution ratio, color and LED parameters of the display module.

8. The LED display, as recited in claim 6, wherein each display module comprises a memory, storing the resolution ratio, color and LED parameters of the display module.

9. The LED display, as recited in claim 7, wherein the main controller inquires each unit controller information of resolution ratio, color and LED parameters of the LED unit, and position relationship with the connected next unit controller;

then each unit controller feeds back such information to the main controller;

the main controller calculates position of each LED unit according to the information and range of receiving data of each unit controller;

then the main controller informs each unit controller the range of receiving data of each unit controller, and each unit controller displays data according range of receiving data.

10. The LED display, as recited in claim 8, wherein the main controller inquires each unit controller information of resolution ratio, color and LED parameters of the LED unit, and position relationship with the connected next unit controller;

then each unit controller feeds back such information to the main controller;

the main controller calculates position of each LED unit according to the information and range of receiving data of each unit controller;

then the main controller informs each unit controller the range of receiving data of each unit controller, and each unit controller displays data according range of receiving data.