公开(公告)号：US20200322728A1

公开(公告)日：2020-10-08

申请号：US16904641

申请日：2020-06-18

Applicant: LG Display Co., Ltd.

Inventor： YeongRak Choi ,  KwanHo Park ,  Sungtae Lee

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

Abstract: A display apparatus includes a display panel configured to display an image by emitting light, and a sound generating device on a rear surface of the display panel. The sound generating device includes a bobbin, and a protection member on the bobbin.

公开(公告)号：US10741620B2

公开(公告)日：2020-08-11

申请号：US15785397

申请日：2017-10-16

Applicant: LG Display Co., Ltd.

Inventor： YeongRak Choi ,  ChangHo Oh ,  KwanHo Park ,  Sungtae Lee

IPC: H01L27/32 ,  G06F1/16 ,  H04R7/20 ,  H04R9/02 ,  H01L51/52 ,  H04R1/02 ,  H04R7/06 ,  H04R9/04 ,  H04R9/06 ,  H04R7/04 ,  H04R7/10

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：US10728669B2

公开(公告)日：2020-07-28

申请号：US15964822

申请日：2018-04-27

Applicant: LG Display Co., Ltd.

Inventor： YeongRak Choi ,  KwanHo Park ,  Sungtae Lee

IPC: H03G3/00 ,  H04R25/00 ,  H04R7/04 ,  H04R9/02 ,  H04R9/06 ,  H04R1/02 ,  H04R9/04

Abstract: A display apparatus includes a display panel configured to display an image by emitting light, and a sound generating device on a rear surface of the display panel. The sound generating device includes a bobbin, and a protection member on the bobbin.

公开(公告)号：US10555073B2

公开(公告)日：2020-02-04

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: H04R1/02 ,  H04R1/32 ,  G06F1/16 ,  G02F1/1333 ,  H04R7/04 ,  H04R9/02 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  H04R5/02 ,  H04R9/04 ,  H04R9/06

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：US09818805B2

公开(公告)日：2017-11-14

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: G06F3/044 ,  H01L27/32 ,  H01L51/52 ,  H04R1/02 ,  H04R9/06 ,  H04R7/06 ,  H04R9/04

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：US11616928B2

公开(公告)日：2023-03-28

申请号：US17244823

申请日：2021-04-29

Applicant: LG Display Co., Ltd.

Inventor： Sungtae Lee ,  SeYoung Kim ,  KwanHo Park ,  YeongRak Choi ,  Kwangho Kim ,  Sungsu Ham

IPC: H04N5/64 ,  H04R1/02 ,  H04R5/02 ,  H04R1/26 ,  H01L51/00 ,  H01L27/32 ,  G02F1/1362 ,  G02F1/1333

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：US11412322B2

公开(公告)日：2022-08-09

申请号：US16804090

申请日：2020-02-28

Applicant: LG Display Co., Ltd.

Inventor： Sungtae Lee ,  Teh Hyeon Kim ,  YeongRak Choi ,  Seungwan Ryu ,  KwanHo Park

IPC: H04R1/26 ,  H04R1/02 ,  H04R9/06 ,  H04R9/02 ,  H04R7/26 ,  H04R17/00 ,  H04R7/04 ,  H04R9/04

Abstract: A display apparatus includes a display module including a display panel configured to display an image, a rear cover on a rear surface of the display module, and a sound generating module at the rear cover and configured to vibrate the display module to generate sound, and a rear surface of the sound generating module is covered by the rear cover.

公开(公告)号：US11375316B2

公开(公告)日：2022-06-28

申请号：US17206037

申请日：2021-03-18

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：US11265655B2

公开(公告)日：2022-03-01

申请号：US16703719

申请日：2019-12-04

Applicant: LG DISPLAY CO., LTD.

Inventor： YeongRak Choi ,  KwanHo Park ,  Sungtae Lee

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

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：US11140482B2

公开(公告)日：2021-10-05

申请号：US16352356

申请日：2019-03-13

Applicant: LG DISPLAY CO., LTD.

Inventor： Sungtae Lee ,  KwanHo Park ,  YeongRak Choi ,  Kwangho Kim ,  MyungJin Bae

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

Abstract: Provided are an actuator fixing device and a panel vibration type sound-generating display device including the same. A display device includes: a display panel configured to display an image, a cover bottom configured to cover the display panel, and a plurality of sound-generating actuators supported by the cover bottom, the sound-generating actuators being configured to vibrate the display panel to generate sound, at least two of the sound-generating actuators being adjacent to each other.