US 12,253,883 B2
Digitizer including dummy lines and foldable display device including the same
Yong-Kwan Kim, Yongin-si (KR); Hirotsugu Kishimoto, Yongin-si (KR); Hyunjae Na, Yongin-si (KR); Seokwon Jang, Yongin-si (KR); and Chul Ho Jeong, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Sep. 18, 2023, as Appl. No. 18/469,320.
Claims priority of application No. 10-2022-0165884 (KR), filed on Dec. 1, 2022.
Prior Publication US 2024/0184332 A1, Jun. 6, 2024
Int. Cl. G06F 3/044 (2006.01); G06F 1/16 (2006.01); G06F 3/041 (2006.01)
CPC G06F 1/1641 (2013.01) [G06F 1/1616 (2013.01); G06F 1/1643 (2013.01); G06F 1/1652 (2013.01); G06F 3/04164 (2019.05); G06F 3/0446 (2019.05); G06F 3/0448 (2019.05); G06F 2203/04102 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel comprising a first non-folding region, a second non-folding region, and a folding region disposed between the first and second non-folding regions,
wherein the folding region is foldable about a folding axis; and
a digitizer disposed under the display panel and divided into an active region and a non-active region around the active region,
wherein the digitizer comprises:
a first sensing coil disposed in a first layer in the active region;
a first dummy line disposed in the first layer with the first sensing coil;
a second sensing coil disposed in a second layer below the first sensing coil in the active region;
a second dummy line disposed in the second layer with the second sensing coil;
a bridge line disposed in a third layer below the second sensing coil; and
a third dummy line disposed in the third layer with the bridge line, and
wherein at least two dummy lines among the first, second, and third dummy lines extend lengthwise in a same direction parallel to the folding axis.