US 11,669,126 B2
Flexible vibration film and display having the same
Sungwook Ko, Paju-si (KR); YongWoo Lee, Paju-si (KR); Chiwan Kim, Paju-si (KR); Taeheon Kim, Paju-si (KR); and Sung-Eui Shin, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Dec. 22, 2020, as Appl. No. 17/131,389.
Claims priority of application No. 10-2019-0179559 (KR), filed on Dec. 31, 2019.
Prior Publication US 2021/0200265 A1, Jul. 1, 2021
Int. Cl. G06F 1/16 (2006.01); G09F 9/30 (2006.01); G10K 9/122 (2006.01); G06F 3/16 (2006.01)
CPC G06F 1/1605 (2013.01) [G06F 3/16 (2013.01); G09F 9/301 (2013.01); G10K 9/122 (2013.01); G06F 1/1652 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A flexible vibration film, comprising:
a vibration layer;
a first electrode layer disposed on a first surface of the vibration layer; and
a second electrode layer disposed on a second surface of the vibration layer,
wherein the vibration layer includes:
a first vibration unit having a first vibration characteristics;
a second vibration unit having a second vibration characteristics; and
a flexible insulating part disposed between the first vibration unit and the second vibration unit,
wherein the first electrode layer includes:
a first part corresponding to the first vibration unit; and
a second part corresponding to the second vibration unit,
wherein the first vibration unit includes:
a plurality of first piezoelectric parts having a first width; and
a plurality of first insulating parts between each of the plurality of the first piezoelectric parts, and
wherein the second vibration unit includes:
a plurality of second piezoelectric parts having a second width; and
a plurality of second insulating parts between each of the plurality of the second piezoelectric parts.