US 11,809,651 B2
Display device and method for providing haptic feedback by display device
Dong Yeol Yeom, Suwon-si (KR); Jung Ho Myung, Seoul (KR); Min Jeung Lee, Suwon-si (KR); and Se Ryun Lee, Asan-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Aug. 9, 2021, as Appl. No. 17/397,361.
Application 17/397,361 is a continuation of application No. 16/735,676, filed on Jan. 6, 2020, granted, now 11,086,431.
Claims priority of application No. 10-2019-0012270 (KR), filed on Jan. 30, 2019; and application No. 10-2019-0067534 (KR), filed on Jun. 7, 2019.
Prior Publication US 2021/0373694 A1, Dec. 2, 2021
Int. Cl. G06F 3/041 (2006.01); G06F 3/01 (2006.01); H10N 30/20 (2023.01)
CPC G06F 3/0412 (2013.01) [G06F 3/016 (2013.01); H10N 30/20 (2023.02)] 12 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel;
a touch sensing layer which senses a touch input of a user;
a first vibration device which is disposed on a first surface of the display panel and generates vibration according to driving voltages,
wherein the first vibration device generates a first vibration during a first situation, and the first vibration device generates a second vibration during a second situation,
wherein the number of times of increasing the amplitude of the first vibration is N where N is a positive integer, and the number of times of decreasing the amplitude of the first vibration is M where M is a positive integer,
wherein a time period of duration of the first vibration is different than a time period of duration of the second vibration, and
wherein the first vibration device generates a third vibration in response to touch a first icon, and the first vibration device generates a fourth vibration in response to touch a second icon,
wherein a frequency of the third vibration and a frequency of the fourth vibration is larger than a frequency of the second vibration.