US 11,875,755 B2
Method of driving light emitting diode backlight unit and display device performing the same
Hyunji Yoon, Suwon-si (KR); Yangwook Kim, Suwon-si (KR); Kyungchun Kim, Suwon-si (KR); Sukyun Woo, Suwon-si (KR); Pansoo Kim, Suwon-si (KR); Byungil Kim, Suwon-si (KR); Hyeongtae Kim, Suwon-si (KR); and Jisu Yoon, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Dec. 20, 2022, as Appl. No. 18/068,861.
Claims priority of application No. 10-2022-0005908 (KR), filed on Jan. 14, 2022; and application No. 10-2022-0048094 (KR), filed on Apr. 19, 2022.
Prior Publication US 2023/0230551 A1, Jul. 20, 2023
Int. Cl. G09G 3/34 (2006.01); G09G 3/32 (2016.01)
CPC G09G 3/3406 (2013.01) [G09G 3/32 (2013.01); G09G 2300/0819 (2013.01); G09G 2310/0202 (2013.01); G09G 2330/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of driving a light emitting diode (LED) backlight unit, the LED backlight unit including a plurality of LED elements that are connected to a plurality of gate lines and a plurality of source lines, the method comprising:
generating a plurality of gate signals applied to the plurality of gate lines;
generating, while the plurality of gate signals are generated, a non-overlap interval between activation intervals of two adjacent gate signals, all of the plurality of gate signals being deactivated during the non-overlap interval;
generating a plurality of source signals applied to the plurality of source lines; and
generating, while the plurality of source signals are generated, a high-impedance interval exclusively in the non-overlap interval, at least some of the plurality of source signals having a high-impedance state during the high-impedance interval.