US 12,236,878 B2
Display apparatus and operating method thereof
Junhaeng Heo, Daegu (KR); and Sejeong Wi, Yongin-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Dec. 5, 2023, as Appl. No. 18/529,906.
Claims priority of application No. 10-2022-0187302 (KR), filed on Dec. 28, 2022.
Prior Publication US 2024/0221659 A1, Jul. 4, 2024
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/041 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a display panel in which at least one pixel circuit each including a light emitting diode and a driving transistor connected to the light emitting diode is disposed;
a memory configured to store a first current value corresponding to a first temperature and a second current value corresponding to a second temperature;
a temperature sensor; and
a control circuit configured to identify a threshold voltage of the driving transistor using the first current value when a temperature sensed by the temperature sensor corresponds to the first temperature, and identify the threshold voltage of the driving transistor using the second current value when the temperature sensed by the temperature sensor corresponds to the second temperature,
wherein the control circuit includes:
a sensing circuit including a converter circuit which converts an analog electric signal into a digital electric signal and a range adjusting circuit which adjusts a conversion data range of the converter circuit; and
a timing control circuit,
wherein the control circuit sets a conversion data range of the converter circuit to a first range in response to the first temperature and the conversion data range of the converter circuit to a second range in response to the second temperature.