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：US20210006881A1

公开(公告)日：2021-01-07

申请号：US17028973

申请日：2020-09-22

Applicant: LG Display Co., Ltd.

Inventor： Sungtae LEE

IPC: H04R1/02 ,  H04R7/04 ,  H04R9/02

Abstract: A display apparatus includes a display panel configured to display an image, and a sound generating device on a rear surface of the display panel and configured to vibrate the display panel to generate sound, wherein the sound generating device includes a plate, a magnet and a center pole on the plate, and an oval-shaped bobbin around the center pole.

公开(公告)号：US20190196537A1

公开(公告)日：2019-06-27

申请号：US16044958

申请日：2018-07-25

Applicant: LG Display Co., Ltd.

Inventor： YeongRak CHOI ,  Sungtae LEE ,  Hogeol LIM ,  Daeho KIM ,  Hongseok JUNG

IPC: G06F1/16 ,  H04R9/06 ,  H04R1/02

CPC classification number: G06F1/1605 ,  G06F1/1688 ,  H04R1/028 ,  H04R5/02 ,  H04R7/045 ,  H04R9/06 ,  H04R2440/05 ,  H04R2499/15

Abstract: A display apparatus includes: a display panel configured to display an image, one or more sound generation devices configured to vibrate the display panel to generate sound, a supporting member configured to support the display panel, a partition between the display panel and the supporting member, the partition including: a first side in a horizontal direction, and a second side in a vertical direction, one or more first pad parts on the first side of the partition, and one or more second pad parts on the second side of the partition, wherein a first of the one or more first pad parts includes a different material from a material of a first of the one or more second pad parts.

公开(公告)号：US20190129231A1

公开(公告)日：2019-05-02

申请号：US16130073

申请日：2018-09-13

Applicant: LG Display Co., Ltd.

Inventor： Sungsu HAM ,  YeongRak CHOI ,  Sungtae LEE ,  Daeho KIM

IPC: G02F1/1333 ,  H04R19/02 ,  H04R1/02 ,  H04R9/02 ,  G09G3/34

Abstract: A display apparatus includes a display panel configured to display an image; a supporting member on a rear surface of the display panel; a magnetic circuit unit in the supporting member, the magnetic circuit unit configured to generate a magnetic loop; and a coil unit on the rear surface of the display panel. The magnetic circuit unit and the coil unit are configured to vibrate the display panel to generate sound.

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：US20180352314A1

公开(公告)日：2018-12-06

申请号：US15987244

申请日：2018-05-23

Applicant: LG Display Co., Ltd.

Inventor： Sungtae LEE ,  SeYoung KIM ,  YeongRak CHOI ,  Kwangho KIM

IPC: H04R1/02

CPC classification number: H04R7/045 ,  H04R1/288 ,  H04R9/025 ,  H04R2440/05 ,  H04R2440/07 ,  H04R2499/15

Abstract: Disclosed is a display apparatus that may include a display panel configured to display an image by emitting light, a supporting member disposed on a rear surface of the display panel, a sound generating device disposed between the supporting member and the display panel, and a plurality of partitions at a predetermined interval from the sound generating device, wherein the partitions have different compression force deflections.

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.