US 11,869,431 B2
Power provider and display device including the same
Dong Kwan Han, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Jun. 24, 2022, as Appl. No. 17/849,334.
Claims priority of application No. 10-2021-0148871 (KR), filed on Nov. 2, 2021.
Prior Publication US 2023/0138351 A1, May 4, 2023
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01); G09G 2330/027 (2013.01); G09G 2330/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power provider comprising:
a first power converter configured to convert an input voltage, and output a first power voltage to a display panel through a first power line;
a second power converter configured to convert the input voltage, and output a second power voltage to the display panel through a second power line; and
a short circuit detecting circuit configured to detect a short-circuit of the first power line and the second power line in the display panel, by determining whether or not a level of a sensed voltage measured at the second power line is greater than or equal to a reference short circuit voltage level in response to a sensing enable signal output during a short circuit detecting period,
wherein the short circuit detecting circuit is configured to vary a length of the short circuit detecting period and the reference short circuit voltage level in response to a driving frequency, and
wherein the short circuit detecting circuit is configured to delay the output of the sensing enable signal based on a first pre-charge end signal.