US 11,682,354 B1
Display device
Kihyun Pyun, Gwangmyeong-si (KR); and Hyunjoo Seo, Changwon-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Nov. 4, 2022, as Appl. No. 17/981,225.
Claims priority of application No. 10-2022-0036317 (KR), filed on Mar. 23, 2022.
Int. Cl. G09G 3/3258 (2016.01)
CPC G09G 3/3258 (2013.01) [G09G 2300/0857 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including a plurality of pixels for displaying an image;
a first source circuit board configured to receive a first driving voltage, supply the first driving voltage to the display panel, and output a first feedback voltage corresponding to the first driving voltage;
a second source circuit board configured to receive a second driving voltage, supply the second driving voltage to the display panel, and output a second feedback voltage corresponding to the second driving voltage; and
a control circuit board configured to supply the first and second driving voltages to the first and second source circuit boards, respectively, and receive the first and second feedback voltages from the first and second source circuit boards, respectively,
wherein the control circuit board comprises:
a comparison unit configured to compare the first and second feedback voltages with a preset reference voltage and generate a result signal in response to a comparison result; and
a generation unit configured to generate a protection signal for activating a protection mode for protecting the display panel based on the result signal.