US 10,593,256 B2Granted

LED display device and method for operating the same

AssigneeSct Ltd.

InventorsEric Li, Juinn-Yan Chen, Shean-Yih Chiou, Shang-Kuan Tang

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Abstract

An LED display device includes a transmitter having a memory and a pixel mapping table, a plurality of first receivers coupled to the transmitter, a plurality of second receiver modules, and a plurality of LED driver groups. A unique address is assigned to a data packet with a use of the pixel mapping table. The data packet has a set of field information and the set of field information includes the unique address. Each of the second receiver modules is coupled to at least one of the first receivers and includes a plurality of second receivers. None of the plurality of second receivers comprises a pixel mapping memory. Each of the LED driver groups is coupled to one of the plurality of second receivers and includes a plurality of LED drivers.

Claims20

Dependent claims

An LED display device comprising:

an LED display having an array of LED pixels;
a transmitter having a memory and a pixel mapping table, wherein the pixel mapping table receives a data packet from a data source and assigns to the data packet a set of field information that contains a unique address for a LED pixel in the array of the LED pixels;
a plurality of first receivers coupled to the transmitter;
a plurality of second receiver modules, each comprising a plurality of second receivers, wherein each of the second receiver modules is coupled to at least one of the first receivers and receives the data packet therefrom;
and
a plurality of LED driver groups, each comprising a plurality of LED drivers that drive the array of LED pixels, wherein each of the LED driver groups is coupled to one of the plurality of second receivers and transmits the data packet received from the second receiver to the LED pixel, wherein none of the plurality of second receivers comprises an external volatile memory.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/933,370Filed 22 Mar 2018
Published: US 2019/0295457 A126 Sep 2019
Granted: 17 Mar 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

G09G 3/32
Using electroluminescent panels: semiconductive, e.g. using light-emitting diodes [LED]
G06F 3/1446
Controlling a plurality of local displays, e.g. CRT and flat panel display: display composed of modules, e.g. video walls
G09G 5/006
Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto: details of…
G09G 2300/026
Composition of display devices: video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions