Profiling device, profiling method, bonding system, bonding method, and display device

Patent metadata

Field	Value
Publication number	US-12076891-B2
Application number	US-202217682871-A
Country	US
Kind code	B2
Filing date	Feb 28, 2022
Priority date	Mar 11, 2021
Publication date	Sep 3, 2024
Grant date	Sep 3, 2024

Abstract

A profiling device, a profiling method, a bonding system, a bonding method, and a display device are provided. The profiling device includes a profiling jig. The profiling jig includes an attaching surface. The attaching surface is switchable between a planar state and a profiling state, and the attaching surface is a planar surface in the case that the attaching surface is in the planar state, and the attaching surface is a profiling surface in the case that the attaching surface is in the profiling state.

First claim

What is claimed is:

1. A profiling device, comprising a profiling jig; wherein
the profiling jig comprises an attaching surface, and the attaching surface is configured to attach a flexible display panel and is provided with a planar state and a profiling state, wherein the attaching surface is switchable between the planar state and the profiling state, the attaching surface is a planar surface in the case that the attaching surface is in the planar state, and the attaching surface is a profiling surface in the case that the attaching surface is in the profiling state, the profiling surface comprising a profiling curved-surface; and
wherein a material of the profiling jig is a shape memory material such that the profiling jig memorizes a structure of the profiling jig in the case that the attaching surface is in the planar state and a structure of the profiling jig in the case that the attaching surface is in the profiling state.

2. The profiling device according to claim 1 , wherein the shape memory material comprises any one of a shape memory alloy and a shape memory polymer.

3. The profiling device according to claim 2 , wherein
the shape memory polymer comprises any one of a thermotropic polymer, an electrotropic polymer, a magnetotropic polymer, and a photopolymer.

4. The profiling device according to claim 2 , wherein
the shape memory polymer comprises at least one of a cross-linked copolymer of stearyl acrylate and acrylic acid, polyamide, a styrene-butadiene copolymer, and polynorbornene.

5. The profiling device according to claim 1 , wherein
the profiling surface comprises a profiling planar surface and the profiling curved-surface, wherein the profiling curved-surface surrounds the profiling planar surface, and the profiling curved-surface continuously extends along an edge of the profiling planar surface, an edge of the profiling curved-surface being smoothly connected to the edge of the profiling planar surface.

6. The profiling device according to claim 5 , wherein
the profiling curved-surface comprises a lateral profiling curved-surface and a profiling intersection surface, wherein the lateral profiling curved-surface extends along a side edge of the profiling planar surface, the profiling intersection surface is disposed between adjacent lateral profiling curved-surfaces, and the profiling intersection surface is smoothly connected to the adjacent lateral profiling curved-surfaces.

7. The profiling device according to claim 1 , further comprising:
an acting jig, wherein the acting jig is configured to control the attaching surface to be switched between the planar state and the profiling state.

8. The profiling device according to claim 7 , wherein the acting jig comprises any one of a heating jig, an electromagnetic jig, and a light-emitting jig.

9. The profiling device according to claim 8 , wherein the heating jig comprises any one of a heat-sensitive heating jig and an inductive heating jig.

10. The profiling device according to claim 8 , wherein a heating temperature of the heating jig is in a range of 40 to 70° C.

11. The profiling device according to claim 1 , further comprising:
a bearing platform, wherein the bearing platform is configured to bear the profiling jig, and a bearing surface of the bearing platform matable with the profiling surface.

12. A profiling method of a flexible display panel, applicable to a profiling device;
wherein the profiling device comprises a profiling jig, the profiling jig comprises an attaching surface, and the attaching surface is configured to attach the flexible display panel and is provided with a planar state and a profiling state, wherein the attaching surface is switchable between the planar state and the profiling state, the attaching surface is a planar surface in the case that the attaching surface is in the planar state, and the attaching surface is a profiling surface in the case that the attaching surface is in the profiling state, the profiling surface comprising a profiling curved-surface; and
wherein a material of the profiling jig is a shape memory material such that the profiling jig memorizes a structure of the profiling jig in the case that the attaching surface is in the planar state and a structure of the profiling jig in the case that the attaching surface is in the profiling state;
the method comprising:
attaching the flexible display panel to the attaching surface of the profiling jig in the case that the attaching surface is in the planar state; and

controlling the attaching surface of the profiling jig to be switched from the planar state to the profiling state, such that the attaching surface of the profiling jig drives the flexible display panel to be deformed from a planar structure to a curved-surface structure.

13. The method according to claim 12 , wherein
the profiling device further comprises an acting jig; and
controlling the attaching surface of the profiling jig to be switched from the planar state to the profiling state comprises: controlling the attaching surface of the profiling jig to be switched from the planar state to the profiling state by the acting jig.

14. The method according to claim 13 , wherein
the acting jig is a heating jig; and
controlling the attaching surface of the profiling jig to be switched from the planar state to the profiling state comprises: heating the profiling jig by the heating jig, such that the attaching surface of the profiling jig is switched from the planar state to the profiling state.

15. The method according to claim 12 , wherein
the acting jig is an electromagnetic jig; and
controlling the attaching surface of the profiling jig to be switched from the planar state to the profiling state comprises: applying a magnetic field to the profiling jig by the electromagnetic jig, such that the attaching surface of the profiling jig is switched from the planar state to the profiling state.

16. The method according to claim 12 , wherein
the acting jig is a light-emitting jig; and
controlling the attaching surface of the profiling jig to be switched from the planar state to the profiling state comprises: irradiating the profiling jig by the light-emitting jig, such that the attaching surface of the profiling jig is switched from the planar state to the profiling state.

17. A bonding system, comprising a driving jig, a cover plate jig, and a profiling device; wherein
the profiling device comprises a profiling jig, the profiling jig comprising an attaching surface, and the attaching surface is configured to attach the flexible display panel and is provided with a planar state and a profiling state, the attaching surface is switchable between the planar state and the profiling state, the attaching surface is a planar surface in the case that the attaching surface is in the planar state, and the attaching surface is a profiling surface in the case that the attaching surface is in the profiling state, the profiling surface comprising a profiling curved- surface;
the cover plate jig is configured to bear a curved-surface cover plate;
the profiling jig is configured to bear a flexible display panel;
the profiling device is configured to profile the flexible display panel, such that a structure of the flexible display panel matches a structure of the curved-surface cover plate; and
the driving jig is configured to drive the profiling jig and the cover plate jig to approach each other, such that the flexible display panel on the profiling jig is bonded to the curved-surface cover plate on the cover plate jig; and
wherein a materi

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Shi Jiafan
• Chen Liqiang
• Wang Yaming
• Zhao Dongdong
• Zhou Chao
• Jiang Yongchun
• Yin Qian

Classifications

• B29L2031/3475

  Displays, monitors, TV-sets, computer screens · CPC title

• B29C2043/3211

  magnets · CPC title

• B29C65/7814

  in the form of inter-cooperating positioning features (holding or clamping means cooperating with specially formed features of at least one of the parts to be joined B29C65/7844), e.g. tenons and mortises (tenon and mortise joints B29C66/126; tongue and groove joints B29C66/124) · CPC title

• B29C65/32

  Induction · CPC title

• B29C43/52

  Heating or cooling · CPC title