US 12,293,046 B2
Electroluminescent display including touch sensor
Jonghyun Han, Paju-si (KR); and Seungrok Shin, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Jan. 19, 2024, as Appl. No. 18/418,027.
Application 17/209,986 is a division of application No. 16/215,347, filed on Dec. 10, 2018, granted, now 10,983,639, issued on Apr. 20, 2021.
Application 18/418,027 is a continuation of application No. 18/165,008, filed on Feb. 6, 2023, granted, now 11,914,822.
Application 18/165,008 is a continuation of application No. 17/209,986, filed on Mar. 23, 2021, granted, now 11,604,545, issued on Mar. 14, 2023.
Claims priority of application No. 10-2017-0183798 (KR), filed on Dec. 29, 2017; and application No. 10-2017-0184515 (KR), filed on Dec. 29, 2017.
Prior Publication US 2024/0160322 A1, May 16, 2024
Int. Cl. G09G 5/00 (2006.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01); H10K 50/844 (2023.01); H10K 59/122 (2023.01); H10K 59/40 (2023.01)
CPC G06F 3/044 (2013.01) [G06F 3/0412 (2013.01); G06F 3/0416 (2013.01); G06F 3/0418 (2013.01); H10K 50/844 (2023.02); H10K 59/122 (2023.02); H10K 59/40 (2023.02); G06F 2203/04102 (2013.01); G06F 2203/04107 (2013.01); G06F 2203/04111 (2013.01); G06F 2203/04112 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A foldable display comprising:
a substrate including a display region and a non-display region;
a pad area on the non-display region;
a transistor on the display region of the substrate, the transistor having an active layer, a source electrode, a drain electrode, and a gate electrode;
a planarization layer on the transistor;
an anode electrode on the planarization layer;
a bank surrounding the anode electrode;
a spacer on the bank;
an electroluminescent layer on the anode electrode;
a cathode electrode on the electroluminescent layer and the bank;
an encapsulation unit on the cathode electrode;
a touch buffer layer on the encapsulation unit; and
a touch sensor on the touch buffer layer,
wherein the touch sensor includes a first touch electrode and a second touch electrode, wherein the first touch electrode and the second touch electrode comprise a multi-layer structure including a first titanium layer, an aluminum layer, and a second titanium layer, and
wherein a layer of the multi-layer structure has a different width at a portion crossing with the first touch electrode and the second touch electrode.