Novick, Kim & Lee, PLLC
Apparatus and method for driving LED display panel
The present disclosure provides devices, circuits, and methods for driving an LED display panel, so as to ensure the delivery of equal global charge at minimum gray scale. In one example, the circuit of the present disclosure includes a current source, a detection module, and a measurement module. The current source is configured to generate a current signal for the LEDs. The detection module is configured to detect a forward voltage of the LEDs in response to a low current applied to the LEDs. The detection module is further configured to hold the detected forward voltage. The measurement module is configured to measure a time period for an anode voltage of the LEDs to rise to the detected forward voltage in response to a display current applied to the LEDs.
SCT TECHNOLOGY, LTD.
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G09G Y02B G09G G09G H05B G09G H05B
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Yi Shahnad Shang-Kuan Eric Yutao Lei Wenjie
Zhang Nadershahi Tang Li Chen Shen Yang