US 12,243,472 B2
Light-emitting diode panel and driving device thereof
Yu-Sheng Ma, Taichung (TW); Jhih-Siou Cheng, New Taipei (TW); Chun-Fu Lin, Taoyuan (TW); and Jin-Yi Lin, Kaohsiung (TW)
Assigned to Novatek Microelectronics Corp., Hsinchu (TW)
Filed by Novatek Microelectronics Corp., Hsinchu (TW)
Filed on Aug. 4, 2023, as Appl. No. 18/365,247.
Claims priority of provisional application 63/395,331, filed on Aug. 5, 2022.
Prior Publication US 2024/0046856 A1, Feb. 8, 2024
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2310/0251 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/0275 (2013.01); G09G 2330/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A driving device for a light-emitting diode (LED) panel, comprising:
a source driver, coupled to a plurality of data lines disposed in the LED panel, and configured to output driving currents to the data lines in any one of a plurality of scan line periods, to drive a LED array of the LED panel; and
a scan driver coupled to a plurality of scan lines disposed in the LED panel, wherein the scan driver scans the scan lines during the plurality of scan line periods, and
in an active period of any one of the scan line periods, the scan driver applies an enable voltage to a current scan line among the scan lines, and the scan driver applies a pre-charge voltage to a first other scan line among the scan lines,
wherein an inactive period is configured between active periods of any two adjacent scan line periods among the scan line periods, the source driver pre-discharges the data lines during a first period of the inactive period, and the source driver pre-charges the data lines during a second period of the inactive period, and wherein the second period is later than the first period,
wherein the scan driver applies the pre-charge voltage to the scan lines to disable the LED array during the inactive period.