公开(公告)号：US10930715B2

公开(公告)日：2021-02-23

申请号：US16146126

申请日：2018-09-28

Applicant: LG Display Co., Ltd.

Inventor： Hangsup Cho ,  Seongeun Park ,  Woosup Shin ,  Hyeonwoo Lee ,  Bongchul Kim

IPC: H01L27/32 ,  G06F1/16 ,  H01L51/00 ,  H01L51/56 ,  H01L51/52

Abstract: A flexible display device and a method for manufacturing a flexible display device are provided. A flexible display device includes: a support substrate having a first thickness and including a first material, the support substrate further including first and second main faces opposite to each other, a buffer substrate on the first main face of the support substrate, the buffer substrate having a second thickness smaller than the first thickness, and the buffer substrate including a second material more flexible than the first material, a thin-film transistor array on the buffer substrate, such that the buffer substrate is between the thin-film transistor array and the support substrate, and a sealing substrate fixed above the thin-film transistor array, the thin-film transistor array being between the buffer substrate and the sealing substrate.

公开(公告)号：US10439154B2

公开(公告)日：2019-10-08

申请号：US16046756

申请日：2018-07-26

Applicant: LG Display Co., Ltd.

Inventor： Jeonghun Kim ,  Bongchul Kim

IPC: H01L51/00 ,  H01L27/32 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

Abstract: The present disclosure provides a display device comprising: a rollable display panel configured to display an image; a display-panel roller, the display panel being fixed thereto; a support frame, the display-panel roller being rotatably coupled to the frame; and a first protective sheet, wherein when the panel is coiled around the panel roller, the first protective sheet is removably applied on a front face of the display panel. Thus, when the display panel is coiled around a display-panel roller, scratched may be suppressed in the panel.

公开(公告)号：US10474198B2

公开(公告)日：2019-11-12

申请号：US16294833

申请日：2019-03-06

Applicant: LG Display Co., Ltd.

Inventor： Youngshin Lee ,  Bongchul Kim ,  Junhyeok Yang ,  Sangyun Kim

IPC: G06F1/16 ,  H01L51/00 ,  H01L51/52 ,  G09G3/3233 ,  H05K5/02 ,  H01L27/32

Abstract: A rollable flexible display comprises: a display panel on which signal lines and pixels are arranged; a control board that supplies the signal lines with signals to drive the pixels; and a panel roller portion around which the display panel is rolled up and including an inner space for placing the control board, wherein the transverse width of the control board is greater than the inner diameter of the panel roller portion, and an insert portion for insertion into a slot in the panel roller portion is provided on at least one edge of the control board.

公开(公告)号：US20190036049A1

公开(公告)日：2019-01-31

申请号：US16046756

申请日：2018-07-26

Applicant: LG Display Co., Ltd.

Inventor： Jeonghun Kim ,  Bongchul Kim

IPC: H01L51/00 ,  H01L27/32

CPC classification number: H01L51/0097 ,  G06F1/1652 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0809 ,  G09G2310/08 ,  G09G2380/02 ,  H01L27/3244 ,  H01L51/5253 ,  H01L2251/5338

Abstract: The present disclosure provides a display device comprising: a rollable display panel configured to display an image; a display-panel roller, the display panel being fixed thereto; a support frame, the display-panel roller being rotatably coupled to the frame; and a first protective sheet, wherein when the panel is coiled around the panel roller, the first protective sheet is removably applied on a front face of the display panel. Thus, when the display panel is coiled around a display-panel roller, scratched may be suppressed in the panel.

公开(公告)号：US10701813B2

公开(公告)日：2020-06-30

申请号：US15499765

申请日：2017-04-27

Applicant: LG Display Co., Ltd.

Inventor： Jeonghun Kim ,  Bongchul Kim

IPC: H05K5/00 ,  G06F1/16 ,  H04N5/64 ,  H02K11/21 ,  H02K11/33 ,  H01L51/52 ,  H02K7/14 ,  H02P1/16 ,  H02P3/06 ,  G09F9/30

Abstract: The present disclosure provides a rollable display device including a display panel configured to display an image, a panel roller having a mechanical structure that enables rolling up the display panel around an outer circumferential surface of the panel roller, and a roller driving unit configured to control a motor so that the display panel rolls around the outer circumferential surface of the panel roller or unrolls therefrom, wherein the roller driving unit and the motor are disposed in the panel roller.

公开(公告)号：US10254797B2

公开(公告)日：2019-04-09

申请号：US15499762

申请日：2017-04-27

Applicant: LG Display Co., Ltd.

Inventor： Youngshin Lee ,  Bongchul Kim ,  Junhyeok Yang ,  Sangyun Kim

IPC: G06F1/06 ,  H01L51/00 ,  H05K5/02 ,  G06F1/16 ,  H01L27/32 ,  H01L51/52 ,  G09G3/3233

Abstract: A rollable flexible display comprises: a display panel on which signal lines and pixels are arranged; a control board that supplies the signal lines with signals to drive the pixels; and a panel roller portion around which the display panel is rolled up and including an inner space for placing the control board, wherein the transverse width of the control board is greater than the inner diameter of the panel roller portion, and an insert portion for insertion into a slot in the panel roller portion is provided on at least one edge of the control board.

公开(公告)号：US20190037716A1

公开(公告)日：2019-01-31

申请号：US16046766

申请日：2018-07-26

Applicant: LG Display Co., Ltd.

Inventor： Jeonghun Kim ,  Bongchul Kim

IPC: H05K5/02 ,  H05K5/00

Abstract: The display device includes a rollable display panel configured to display an image; a display-panel roller, the display panel being fixed thereto, the roller being elongate; a support frame, the display-panel roller being rotatably coupled to the frame; a drive motor configured for rotating the display-panel roller with respect to the support frame, wherein a rotation of the display-panel roller allows roll-up of the panel around the roller or unroll-down of the panel from the roller; and an elastic unit configured to configured to provide an elastic force to assist in rolling up the display panel around the display-panel roller. This allows reduction of a size or capacity of the motor.

公开(公告)号：US10701821B2

公开(公告)日：2020-06-30

申请号：US16046766

申请日：2018-07-26

Applicant: LG Display Co., Ltd.

Inventor： Jeonghun Kim ,  Bongchul Kim

IPC: H05K5/02 ,  H05K5/00 ,  G06F1/16 ,  F03G1/02 ,  H01L51/52 ,  H01L27/32

Abstract: The display device includes a rollable display panel configured to display an image; a display-panel roller, the display panel being fixed thereto, the roller being elongate; a support frame, the display-panel roller being rotatably coupled to the frame; a drive motor configured for rotating the display-panel roller with respect to the support frame, wherein a rotation of the display-panel roller allows roll-up of the panel around the roller or unroll-down of the panel from the roller; and an elastic unit configured to configured to provide an elastic force to assist in rolling up the display panel around the display-panel roller. This allows reduction of a size or capacity of the motor.

公开(公告)号：US20190036067A1

公开(公告)日：2019-01-31

申请号：US16046763

申请日：2018-07-26

Applicant: LG Display Co., Ltd.

Inventor： Jeonghun Kim ,  Bongchul Kim

IPC: H01L51/52 ,  H01L51/00 ,  H05K5/00

CPC classification number: H01L51/5237 ,  G06F1/1601 ,  G06F1/1652 ,  G06F2200/1612 ,  H01L51/0097 ,  H01L2251/5338 ,  H05K5/0017 ,  H05K5/006 ,  H05K5/0069

Abstract: The present disclosure provides a display device comprising: a rollable display panel configured to display an image; a display-panel roller, the display panel being fixed thereto; and a support frame, the display-panel roller being rotatably coupled to the frame, wherein the display-panel roller includes: first and second elongate half-circularly rounded plates to face away each other to form a substantially cylindrical elongate inner space; and first and second support annular rings spaced from each other, wherein the first and second support annular rings are disposed in the inner space. Thus, the rollable display panel may be more easily fixed to the display-panel roller.

公开(公告)号：US09684340B2

公开(公告)日：2017-06-20

申请号：US14981225

申请日：2015-12-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Changhoon Han ,  Bongchul Kim ,  Jaehyun Kim ,  Yongyub Kim ,  Jaewook Park ,  Woosub Kim

IPC: G06F1/16

CPC classification number: G06F1/1652 ,  G06F1/1601 ,  G09G3/3233 ,  G09G2380/02 ,  H01L51/5243 ,  H01L2251/5338 ,  H01L2251/558

Abstract: Disclosed is a rollable flexible display device. The rollable flexible display device includes, for example, a display panel, a source board, and a panel roller unit. The panel roller unit provides a mechanical structure for rolling the display panel and the source board along an outer circumferential surface thereof. The panel roller unit may have a region forming a curved surface and a region forming a planar surface.