US 12,323,751 B2
Display apparatus
Taeheon Kim, Paju-si (KR); Chiwan Kim, Paju-si (KR); Sung-Eui Shin, Paju-si (KR); YongWoo Lee, Paju-si (KR); Kyungyeol Ryu, Paju-si (KR); YuSeon Kho, Paju-si (KR); and YongGyoon Jang, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Jun. 19, 2023, as Appl. No. 18/211,583.
Application 18/211,583 is a continuation of application No. 17/746,959, filed on May 18, 2022, granted, now 11,770,645.
Application 17/746,959 is a continuation of application No. 17/177,058, filed on Feb. 16, 2021, granted, now 11,368,771, issued on Jun. 21, 2022.
Application 17/177,058 is a continuation of application No. 16/662,690, filed on Oct. 24, 2019, granted, now 10,972,820, issued on Apr. 6, 2021.
Claims priority of application No. 10-2018-0139194 (KR), filed on Nov. 13, 2018.
Prior Publication US 2023/0345156 A1, Oct. 26, 2023
Int. Cl. H04R 1/02 (2006.01); H04R 17/00 (2006.01); H10N 30/20 (2023.01); H10N 30/857 (2023.01); H10N 30/88 (2023.01); H10N 39/00 (2023.01)
CPC H04R 1/028 (2013.01) [H04R 17/00 (2013.01); H10N 30/20 (2023.02); H10N 30/857 (2023.02); H10N 30/883 (2023.02); H10N 39/00 (2023.02); H04R 2499/15 (2013.01)] 35 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a display panel configured to display an image; and
a sound generating device on a rear surface of the display panel,
wherein the sound generating device comprises:
a first structure; and
a first passivation layer at one side of the first structure, and
wherein the first structure comprises a plurality of inorganic material parts and a plurality of flexible material parts alternatingly arranged in parallel on the same plane,
wherein at least a portion of the first passivation layer has a non-flat shape, and
wherein the non-flat shape of the first passivation layer comprises a plurality of concave portions, or a plurality of concave portions and a plurality of convex portions.