公开(公告)号：US20240210994A1

公开(公告)日：2024-06-27

申请号：US17912861

申请日：2021-11-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaofei LUO ,  Shangchieh CHU ,  Yanyan YANG

IPC: G06F1/16

CPC classification number: G06F1/1652 ,  G06F1/1656

Abstract: A flexible support layer and a flexible display device are provided, and the flexible support layer includes at least two non-bending regions and at least one bending region connecting two adjacent non-bending regions, wherein a bending region includes a fixed region and a pattern region located between the fixed region and a non-bending region, a support strip is provided at one side of the pattern region.

公开(公告)号：US20220127106A1

公开(公告)日：2022-04-28

申请号：US17329411

申请日：2021-05-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yanyan YANG ,  Shangchieh CHU ,  Zongyuan WANG ,  Xiaofei LUO ,  Bei WANG

IPC: B65H75/48 ,  F16F1/10 ,  F16F1/04

Abstract: A torsion spring used in a flexible display device includes a spring body having a first connection end configured to connect a reel of the flexible display device, and a second connection end configured to fix the torsion spring. An axial sectional area of the spring body near the first connection end is greater than an axial sectional area of the spring body away from the first connection end. When the reel rotates, the torsion force generated during the initial rotation of the reel is relatively large, and with the increase of the rotation turn number of the reel, the increase of the torsion force is relatively small.

公开(公告)号：US20230056590A1

公开(公告)日：2023-02-23

申请号：US17634041

申请日：2021-03-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yanyan YANG ,  Yonghong ZHOU ,  Shangchieh CHU ,  Xiaofei LUO ,  Hong ZHU ,  Shouchuan ZHANG

IPC: H05K5/02

Abstract: A flattening structure of a flexible screen (100), and a display device. The flattening structure includes a flexible screen storage device (200), a storage blocking member (300), and an elastic assembly (400), the flexible screen storage device (200) includes a housing (201) and a flexible screen reel (202) arranged in the housing (201); one end of the flexible screen (100) is connected to the flexible screen reel (202) and capable of being wound on the flexible screen reel (202), and the other end of the flexible screen (100) is connected to the storage blocking member (300) by means of the elastic assembly (400).

公开(公告)号：US20220346253A1

公开(公告)日：2022-10-27

申请号：US17772485

申请日：2021-07-07

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaofei LUO ,  Shangchieh CHU ,  Hong ZHU ,  Yanyan YANG

IPC: H05K5/02 ,  H05K5/00

Abstract: A flexible display apparatus, which belongs to the field of display devices. The flexible display apparatus comprises a shear fork frame (100), a housing (200), a reel (300), a flexible display screen (400), and a limiting mechanism (500), wherein the support frame (100) comprises a scissor rack (110); the housing (200) comprises a first portion (210) and a second portion (220), the first portion (210) is located at one end of the shear fork frame (110), and the second portion (220) is located at the other end of the shear fork frame (110); and the limiting mechanism (500) is connected to the shear fork frame (110), and at least one among the first portion (210) and the second portion (220) is provided with the limiting mechanism (500), so as to limit the relative movement of the portion where the limiting mechanism (500) is disposed with respect to the axis of the shear fork frame (110). During the process of expanding the flexible display screen (400) by pulling the first portion (210) and the second portion (220) or extending the flexible display screen (400) by folding the first portion (210) and the second portion (220), the limiting mechanism (500) can limit the relative movement of the portion where the limiting mechanism (500) is located with respect to the axis of the shear fork frame (110), which prevents the flexible display screen (400) from becoming askew in the plane where the shear fork frame (110) is located, and facilitating prevention of extending dislocation of the flexible display screen (400).

公开(公告)号：US20220141976A1

公开(公告)日：2022-05-05

申请号：US17259379

申请日：2020-03-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yanyan YANG ,  Shangchieh CHU ,  Xiaofei LUO

IPC: H05K5/02 ,  H05K5/00 ,  B60R11/02 ,  B60K35/00

Abstract: A display assembly includes a storage box and a flexible display screen. A storage groove is formed in the storage box and a side of the storage groove is open. The flexible display screen is able to be switched between an unfolded state and a folded state. In the unfolded state, the flexible display screen is unfolded and covers an open side of the storage groove, and in the folded state, the flexible display screen is folded or wound, and the open side of the storage groove is at least partially exposed.

公开(公告)号：US20210242420A1

公开(公告)日：2021-08-05

申请号：US17048705

申请日：2020-04-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaofei LUO ,  Shangchieh CHU ,  Hong ZHU ,  Yanyan YANG ,  Baofeng SUN

IPC: H01L51/52 ,  H05K5/02 ,  H05K5/00 ,  H01L51/00

Abstract: The present disclosure discloses a rollable display device, including: a flexible display panel; a reel connected to one end of the flexible display panel, around which the flexible display panel is rollable and extendable; a support structure arranged on two side edges of the flexible display panel in a rolling direction thereof, and provided with a first fixing portion; wherein the reel is provided with a second fixing portion matched with the first fixing portion for fixing the support structure and the reel when the flexible display panel is rolled.

公开(公告)号：US20210204433A1

公开(公告)日：2021-07-01

申请号：US17256161

申请日：2020-06-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaofei LUO ,  Shangchieh CHU ,  Yanyan YANG ,  Baofeng SUN

IPC: H05K5/03 ,  H05K5/00 ,  H05K5/02

Abstract: The present disclosure proposes a rollable display device, including a scroll and a flexible screen. The scroll includes a housing and a rotating shaft, the rotating shaft is rotatably disposed in the housing, and the flexible screen includes a connecting end, the flexible screen is coupled to the rotating shaft through the connecting end, and the flexible screen is configured to be retractably wound on the rotating shaft. The flexible screen includes a cover film and an adhesive frame. The cover film includes a connecting section adjoining the connecting end. The adhesive frame is disposed on a side of the connecting section of the cover film facing the rotating shaft. The connecting section is coupled to the rotating shaft through the adhesive frame, and an orthographic projection of the connecting section on a plane perpendicular to an axial direction of the rotating shaft is arc-shaped or spiral-shaped.

公开(公告)号：US20210144881A1

公开(公告)日：2021-05-13

申请号：US16640179

申请日：2019-03-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shangchieh CHU ,  Yonghong ZHOU ,  Yanyan YANG

IPC: H05K7/20 ,  H05K5/00

Abstract: The present disclosure relates to a flexible screen, including a display substrate including a first portion, a second portion folded to form an end portion of the flexible screen and a third portion, said first, second, and third portions being sequentially connected, and a support plate for supporting the display substrate, wherein the first portion and the third portion of the display substrate are opposite to each other, the support plate is arranged between the first portion and the third portion of the display substrate, and one end of the support plate faces one surface of the second portion, and wherein the surface of the second portion facing the support plate is provided with an end heat dissipation device.