公开(公告)号：US20210235186A1

公开(公告)日：2021-07-29

申请号：US17228674

申请日：2021-04-12

Applicant: LG DISPLAY CO., LTD.

Inventor： YeongRak CHOI ,  ChangHo OH ,  KwanHo PARK ,  Sungtae LEE

IPC: H04R1/32 ,  G02F1/1333 ,  H04R1/02 ,  G06F1/16 ,  H04R7/04 ,  H04R9/02

Abstract: A panel vibration type sound generating display device is disclosed. The display device includes a display panel for displaying an image; a sound generating actuator connected to the display panel and configured to vibrate the display panel to generate sound; a support structure spaced apart from the display panel with an air gap between the support structure and the display panel; and a baffle part disposed between the support structure and the display panel to surround the air gap.

公开(公告)号：US20190037165A1

公开(公告)日：2019-01-31

申请号：US16042043

申请日：2018-07-23

Applicant: LG Display Co., Ltd.

Inventor： Sungtae LEE ,  SeYoung KIM ,  KwanHo PARK ,  YeongRak CHOI ,  Kwangho KIM ,  Sungsu HAM

IPC: H04N5/64 ,  H04R1/26 ,  H04R5/02

CPC classification number: H04N5/642 ,  G02F1/1362 ,  G02F2001/133394 ,  H01L27/3225 ,  H01L51/00 ,  H04R1/025 ,  H04R1/26 ,  H04R5/02 ,  H04R2499/15

Abstract: A display apparatus includes: a display panel including: a display area configured to display an image, and a non-display area, at least one first sound generator in the display area, and at least one second sound generator in the non-display area, wherein each of the at least one first sound generator and the at least one second sound generator is configured to vibrate the display panel to generate sound toward a front of the display panel.

公开(公告)号：US20180270570A1

公开(公告)日：2018-09-20

申请号：US15987267

申请日：2018-05-23

Applicant: LG DISPLAY CO., LTD.

Inventor： YeongRak CHOI ,  ChangHo OH ,  KwanHo PARK ,  Sungtae LEE

IPC: H04R1/32 ,  H04R9/02 ,  G06F1/16 ,  H04R1/02

Abstract: A panel vibration type sound generating display device is disclosed. The display device includes a display panel for displaying an image; a sound generating actuator connected to the display panel and configured to vibrate the display panel to generate sound; a support structure spaced apart from the display panel with an air gap between the support structure and the display panel; and a baffle part disposed between the support structure and the display panel to surround the air gap.

公开(公告)号：US20170287990A1

公开(公告)日：2017-10-05

申请号：US15388939

申请日：2016-12-22

Applicant: LG DISPLAY CO., LTD.

Inventor： YeongRak CHOI ,  ChangHo OH ,  KwanHo PARK ,  Sungtae LEE

IPC: H01L27/32 ,  H04R9/04 ,  H04R9/06 ,  H04R7/06 ,  H01L51/52 ,  H04R1/02

CPC classification number: H01L27/3225 ,  G06F1/1605 ,  G06F1/1637 ,  G06F1/1688 ,  H01L27/322 ,  H01L27/3262 ,  H01L51/5246 ,  H04R1/028 ,  H04R7/045 ,  H04R7/06 ,  H04R7/10 ,  H04R7/20 ,  H04R9/025 ,  H04R9/045 ,  H04R9/06 ,  H04R2307/023 ,  H04R2307/025 ,  H04R2440/05 ,  H04R2499/15

Abstract: Embodiments of the present disclosure relate to an organic light emitting display device which directly vibrates an organic light emitting display panel to generate sound, and includes: an organic light emitting display panel including a light emitting layer including an organic light emitting material layer and an encapsulation layer disposed at one side of the light emitting layer; and a sound generating actuator in direct contact with the organic light emitting display panel to vibrate the organic light emitting display panel to generate sound. Especially, the organic light emitting display panel is a bottom emission type device, and thus can prevent generation of a weighted color mixing phenomenon in a wide viewing angle at the time of panel vibration and reduce the thickness or weight of the panel to thereby enhance the sound generation characteristic.

公开(公告)号：US20240259520A1

公开(公告)日：2024-08-01

申请号：US18627455

申请日：2024-04-05

Applicant: LG Display Co., Ltd.

Inventor： Sungtae LEE ,  SeYoung KIM ,  KwanHo PARK ,  YeongRak CHOI ,  Kwangho KIM ,  Sungsu HAM

IPC: H04N5/64 ,  G02F1/1333 ,  G02F1/1362 ,  H04R1/02 ,  H04R1/26 ,  H04R5/02 ,  H10K59/00 ,  H10K99/00

CPC classification number: H04N5/642 ,  H04R1/025 ,  H04R1/26 ,  H04R5/02 ,  H10K59/00 ,  H10K99/00 ,  G02F1/133394 ,  G02F1/1362 ,  H04R2499/15

Abstract: An apparatus includes a vibration plate including an area and a bezel area surrounding the area, at least one vibration generator overlapping the area, and at least one exciter overlapping the bezel area. The at least one vibration generator does not overlap the bezel area. The at least one exciter includes a piezoelectric element. Each of the at least one vibration generator and the at least one exciter is configured to vibrate the vibration plate to generate sound.

公开(公告)号：US20240236570A1

公开(公告)日：2024-07-11

申请号：US18583784

申请日：2024-02-21

Applicant: LG DISPLAY CO., LTD.

Inventor： YeongRak CHOI ,  KwanHo PARK ,  Sungtae LEE

IPC: H04R5/02 ,  H04N5/64 ,  H04R1/02 ,  H04R1/26 ,  H04R1/28 ,  H04R3/14 ,  H04R7/04 ,  H04R9/02 ,  H04R9/06 ,  H04R11/02

CPC classification number: H04R5/02 ,  H04N5/642 ,  H04R1/025 ,  H04R1/028 ,  H04R1/26 ,  H04R1/288 ,  H04R3/14 ,  H04R7/045 ,  H04R9/025 ,  H04R9/06 ,  H04R9/066 ,  H04R11/02 ,  H04R5/023 ,  H04R2307/023 ,  H04R2307/025 ,  H04R2400/03 ,  H04R2440/05 ,  H04R2499/15

Abstract: Disclosed is a display device that includes a display panel, sound generating actuators including a first sound generating actuator in a first area of the display panel and a second sound generating actuator in a second area of the display panel, the first and second sound generating actuators configured to vibrate the display panel to generate sound, and a partition between the first sound generating actuator and the second sound generating actuator.

公开(公告)号：US20240179468A1

公开(公告)日：2024-05-30

申请号：US18431922

申请日：2024-02-02

Applicant: LG DISPLAY CO., LTD.

Inventor： YeongRak CHOI ,  KwanHo PARK ,  Sungtae LEE

IPC: H04R7/04 ,  H04R1/02 ,  H04R9/02 ,  H04R9/06 ,  H04R9/04

CPC classification number: H04R7/04 ,  H04R1/025 ,  H04R9/025 ,  H04R9/06 ,  H04R9/063 ,  H04R9/045 ,  H04R2201/029 ,  H04R2400/03 ,  H04R2440/07 ,  H04R2499/15

Abstract: A display apparatus includes a display panel configured to display an image by emitting light, the display panel including a first area, a second area, and a third area; a first sound generating device in the first area, the first sound generating device including two sub-sound generating devices; a second sound generating device in the second area, the second sound generating device including two sub-sound generating devices; a third sound generating device in the third area; a first partition between the first area and the third area; a second partition between the second area and the third area; a third partition in a periphery of the display panel; and a fourth partition between the two sub-sound generating devices in each of the first area and the second area.

公开(公告)号：US20230336920A1

公开(公告)日：2023-10-19

申请号：US18213212

申请日：2023-06-22

Applicant: LG Display Co., Ltd.

Inventor： Sungtae LEE ,  KwanHo PARK ,  YeongRak CHOI ,  Kwangho KIM

IPC: H04R9/06 ,  H04R9/02 ,  H04R9/04 ,  H04R1/02 ,  H04R7/26

CPC classification number: H04R9/06 ,  H04R9/025 ,  H04R9/045 ,  H04R9/022 ,  H04R1/028 ,  H04R7/26 ,  H04R1/025 ,  H04R2499/13 ,  H04R2400/11 ,  H04R2499/15

Abstract: A sound generating device includes a magnet and a center pole on a yoke, a bobbin around the center pole, a coil wound around the bobbin, a frame outside the yoke, a damper between the frame and the bobbin, and a spacer in the bobbin.

公开(公告)号：US20220286783A1

公开(公告)日：2022-09-08

申请号：US17826005

申请日：2022-05-26

Applicant: LG Display Co., Ltd.

Inventor： Sungtae LEE ,  KwanHo PARK ,  YeongRak CHOI ,  Kwangho KIM

IPC: H04R9/06 ,  H04R9/02 ,  H04R9/04 ,  H04R1/02 ,  H04R7/26

Abstract: A sound generating device includes a magnet and a center pole on a yoke, a bobbin around the center pole, a coil wound around the bobbin, a frame outside the yoke, a damper between the frame and the bobbin, and a spacer in the bobbin.

公开(公告)号：US20200167122A1

公开(公告)日：2020-05-28

申请号：US16686669

申请日：2019-11-18

Applicant: LG DISPLAY CO., LTD.

Inventor： Sungtae LEE ,  KwanHo PARK ,  YeongRak CHOI ,  Kwangho KIM

IPC: G06F3/16 ,  B60R11/02 ,  G06F1/16 ,  G10K9/122

Abstract: A display apparatus includes a display panel configured to display an image, a supporting member configured to support the display panel, at least one sound generating device in the display panel, to the at least one sound generating device being configured to vibrate the display panel to generate sound, and a connection member at a lower portion of the supporting member to correspond to a center of the at least one sound generating device.