公开(公告)号：US10242605B2

公开(公告)日：2019-03-26

申请号：US15531181

申请日：2016-11-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liqiang Chen ,  Hong Li

IPC: H01L23/48 ,  G09F9/30 ,  H01L23/528 ,  H05K1/11 ,  G09G3/20 ,  H01L21/77 ,  H01L23/00 ,  H01L27/12 ,  H05K13/04 ,  H01L23/544

Abstract: A display device and chip bonding method thereof are provided. The display device includes a flexible display panel and a chip bonded to the non-display area of the flexible display panel with the extension directions of individual bumps satisfying, depending on the area in which the bumps are located, the following requirements: in each row of bumps, at least the individual bumps in lateral zones have their extension lines on the same side converging at a same point on the reference line, and the two bumps belong to a same bump group have their extension lines respectively forming an angle with respect to the reference line, the angles being equal to each other.

公开(公告)号：US11302879B2

公开(公告)日：2022-04-12

申请号：US16620559

申请日：2018-10-12

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lu Liu ,  Pao Ming Tsai ,  Peng Cai ,  Hong Li ,  Dejun Bu ,  Jianwei Li ,  Liqiang Chen

IPC: H01L51/00 ,  H01L51/56

Abstract: A flexible display substrate and a manufacturing method therefor, and a display apparatus, for relieving the problem that it is difficult to bend the flexible display substrate in a bending region to damage an upper circuit. The flexible display substrate comprises a back film, a first flexible base substrate located above the back film, and a second flexible base substrate located on one side of the first flexible base substrate facing away from the back film. The flexible display substrate has a bending region. An auxiliary layer is further provided between the first flexible base substrate and the second flexible base substrate. At least part of the auxiliary layer in the bending region can be decomposed in a preset condition, wherein the other film layers except the auxiliary layer are maintained at the original status in the preset condition.

公开(公告)号：US10566570B2

公开(公告)日：2020-02-18

申请号：US16002080

申请日：2018-06-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dejun Bu ,  Paoming Tsai ,  Lu Liu ,  Liqiang Chen ,  Hong Li ,  Jianwei Li ,  Shuang Du

IPC: H01L51/00 ,  H01L51/52 ,  H01L51/56 ,  C09J7/25 ,  C09J11/04 ,  H01L27/32 ,  C08K7/24 ,  C08K3/36 ,  C08K3/22 ,  C08K3/08 ,  C08K3/105

Abstract: The present disclosure relates to the field of display, in particular to a composite cover film and a flexible display device. The composite cover film comprises a polyimide layer, and a first hard coating and a first transparent optical adhesive layer disposed on two sides of the polyimide layer, respectively, wherein at least one of the first hard coating and the first transparent optical adhesive layer contains a nanoscale colorant. The present disclosure further relates to a flexible display device comprising a flexible display panel and the composite cover film disposed on a light-exiting side of the flexible display panel.

公开(公告)号：US10451932B2

公开(公告)日：2019-10-22

申请号：US15538327

申请日：2016-06-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liqiang Chen ,  Weifeng Zhou ,  Hong Li

IPC: G02F1/1345 ,  H01L23/498 ,  H01L23/00 ,  G02F1/1333 ,  H01L27/12

Abstract: A flexible display panel, a display device and a bonding method thereof are provided. The flexible display panel includes a plurality of fan-out leads arranged along a first direction and disposed in a fan-out region; virtual extension lines of the fan out leads at least disposed in lateral regions of the fan-out region are intersected at a first junction point on a reference line perpendicular to the first direction; a chip on film includes a plurality of pads being arranged along the first direction and in one-to-one correspondence with the fan-out leads; and virtual extension lines of the pads, which at least correspond to the fan-out leads disposed in the lateral regions, are intersected at a second junction point on the reference line.

公开(公告)号：US10134678B2

公开(公告)日：2018-11-20

申请号：US15522202

申请日：2016-04-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Hong Li ,  Liqiang Chen ,  Weifeng Zhou

IPC: H01L23/538

Abstract: The present disclosure provides a chip-on-film, a flexible display panel and a display device. The COF includes a plurality of output pads independent of each other. The plurality of output pads are disposed at a side of the substrate and are arranged in at least one row in the first direction. Virtual extension lines of all the output pads intersect at the same intersecting point on the base line. The flexible display panel includes a plurality of input pads independent of each other. The plurality of input pads are disposed in the binding region and are arranged in at least one row in the first direction. Virtual extension lines of all the input pads intersect at the same intersecting point on the base line.

公开(公告)号：US10103351B1

公开(公告)日：2018-10-16

申请号：US15808775

申请日：2017-11-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Hong Li ,  Baoming Cai ,  Weifeng Zhou ,  Lu Liu

IPC: H05K1/00 ,  H01L51/52 ,  H05K3/46 ,  H05K3/00 ,  H05K3/22 ,  H01L51/56 ,  H01L27/32 ,  G06F3/041 ,  H05K1/02

CPC classification number: H01L51/5246 ,  G06F3/0412 ,  G06F2203/04102 ,  H01L27/323 ,  H01L27/3276 ,  H01L27/3288 ,  H01L51/5281 ,  H01L51/56 ,  H01L2251/5338 ,  H05K1/028 ,  H05K3/0044 ,  H05K3/22 ,  H05K3/4644 ,  H05K2201/0257 ,  H05K2201/10128 ,  H05K2203/0228

Abstract: A display device and a method for manufacturing a display device are provided. The method includes: forming a material layer on a first face of a display panel; forming a touch panel and a polarizer sequentially on a second face of the display panel, the display panel having an end projecting beyond lateral faces of the touch panel and the polarizer; removing a portion of the material layer located in a first area on the display panel, the first area being located out of an effective display region of the display panel; and bending the first area of the display panel towards the first face such that a second area and a third area of the display panel are located on both sides of the material layer respectively, wherein the second area and the third area are connected to two ends of the first area respectively.

公开(公告)号：US20180104943A1

公开(公告)日：2018-04-19

申请号：US15522355

申请日：2016-05-03

Applicant: BOE Technology Group Co., Ltd.

Inventor： Liqiang Chen ,  Hong Li ,  Baoming Cai

IPC: B32B37/00 ,  B32B37/10

CPC classification number: B32B37/0053 ,  B32B37/10 ,  B32B38/0004 ,  B32B2457/20

Abstract: A method and a device for attaching a backing film to a flexible substrate and a roller for use therewith. The method includes placing the flexible substrate on a surface of a first worktable facing a second worktable and placing the backing film on a surface of the second worktable facing the first worktable; pressing the flexible substrate and the backing film by a rolling mechanism to attach them together. The rolling mechanism includes a roller having a surface encapsulated with segmented roller encapsulating rubber.