Light emitting diode (LED) display driver utilizing ping pong line buffer to reduce hardware costs and latency

An apparatus for operating a Light Emitting Diode (LED) display, comprising:

• at least one line buffer;
• at least one frame buffer;
• and
• at least one processor and at least one memory device communicatively coupled to the at least one processor, and the at least one memory device stores instructions operable when executed by the at least one processor to perform steps of:
• storing a Nth scan line data in at least one line buffer, wherein N is a natural number equal to or more than one;
• displaying the Nth scan line data stored in the at least one line buffer, and simultaneously storing the Nth scan line data in at least one frame buffer, and storing a (N+1)th scan line data in the at least one line buffer;
• displaying the (N+1)th scan line data stored in the at least one line buffer, and simultaneously storing the (N+1)th scan line data in the at least one frame buffer, and storing a (N+2)th scan line data in the at least one line buffer;
• and
• displaying the (N+2)th scan line data stored in the at least one line buffer, and storing the (N+2)th scan line data in the at least one frame buffer,
• wherein the at least one memory device stores instructions operable when executed by the at least one processor to repeat the aforementioned steps until (N+M)th scan line data stored in the at least one line buffer is displayed, wherein M is a predetermined natural number more than N,
• wherein the at least one memory device stores instructions operable when executed by the at least one processor to further perform displaying the scan line data stored in the at least one frame buffer from the Nth scan line data to the (N+M)th scan line data, and
• wherein the scan line data stored in the at least one frame buffer is sequentially displayed, by the at least one processor, from the Nth scan line data to the (N+M)th scan line data in a same order as being previously displayed from the at least one line buffer.