US 12,242,682 B2
Transparent display device with touch sensor
JaeHee Park, Paju-si (KR); MiReum Lee, Paju-si (KR); and Dojin Kim, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Nov. 7, 2023, as Appl. No. 18/387,639.
Claims priority of application No. 10-2023-0011896 (KR), filed on Jan. 30, 2023.
Prior Publication US 2024/0256060 A1, Aug. 1, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G09G 3/3225 (2016.01); H10K 59/40 (2023.01); H10K 59/88 (2023.01)
CPC G06F 3/0412 (2013.01) [G06F 3/0443 (2019.05); G06F 3/0446 (2019.05); H10K 59/40 (2023.02); H10K 59/88 (2023.02); G06F 2203/04107 (2013.01); G09G 3/3225 (2013.01); G09G 2300/0426 (2013.01)] 38 Claims
OG exemplary drawing
 
1. A transparent display device with a touch sensor, the transparent display device comprising:
a plurality of subpixels disposed in a non-transmission area of a substrate, the plurality of subpixels including a light emitting element with an anode electrode, a light emitting layer, and a cathode electrode;
a touch sensor disposed in a transmission area of the substrate, the touch sensor including a touch sensor electrode; and
an undercut structure for separating the cathode electrode of the light emitting element from the touch sensor electrode of the touch sensor, the undercut structure being disposed in the transmission area of the substrate,
wherein the undercut structure includes:
a plurality of inorganic layers including an opening area between an edge area of the touch sensor and an edge area of one of the plurality of subpixels; and
an organic pattern disposed on an edge area of the plurality of inorganic layers, the organic pattern being spaced apart from the plurality of subpixels.