CN112703546A

CN112703546A - Flexible display screen, manufacturing method thereof and flexible display device

Info

Publication number: CN112703546A
Application number: CN201880096010.6A
Authority: CN
Inventors: 沈贺文
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2018-11-16
Filing date: 2018-11-16
Publication date: 2021-04-23
Also published as: WO2020097910A1

Abstract

The invention discloses a flexible display screen (10), which comprises a first flexible plate (11) and at least two flexible sub-display panels (13), wherein the at least two flexible sub-display panels (13) are spliced on a first surface of the first flexible plate (11) to form a complete flexible display panel (15). The invention also provides a flexible display device (100) and a manufacturing method of the flexible display screen.

Description

Flexible display screen, manufacturing method thereof and flexible display device

Technical Field

The invention relates to the technical field of flexible display, in particular to a flexible display screen, a manufacturing method of the flexible display screen and a flexible display device.

Background

In the display field, large-screen image displays are widely used, such as outdoor advertisements, stages, conference rooms, and the like. However, due to the limitation of the equipment, technology and yield of display screen production, the size of a single display screen cannot be made very large, and in order to meet the requirement of large-screen display, a method of splicing a plurality of display screens is generally adopted. The existing display screen splicing technology is mostly applied to the traditional rigid display screen.

Disclosure of Invention

In order to solve the above problems, embodiments of the present invention disclose a flexible display screen capable of realizing a large size, a manufacturing method thereof, and a flexible display device.

The utility model provides a flexible display screen, includes first flexbile plate and at least two flexibility sub display panel, at least two flexibility sub display panel concatenations are in on the first face of first flexbile plate and form complete flexible display panel.

A flexible display device comprising a flexible display screen as described above.

A manufacturing method of a flexible display screen comprises the following steps: and splicing at least two flexible sub-display panels on the first surface of the first flexible plate to form a complete flexible display panel.

According to the flexible display screen, the flexible display device and the manufacturing method of the flexible display screen, the at least two flexible sub-display panels are spliced on the first surface of the first flexible plate, namely, the plurality of small-size flexible sub-display panels are attached to the large-size first flexible plate in a splicing mode, and the application of the large-size flexible display screen is realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic exploded perspective view of a flexible display panel according to a first embodiment of the present invention.

Fig. 2 is a schematic view of a stacked structure of the flexible display panel shown in fig. 1.

Fig. 3 is a schematic exploded perspective view of a flexible display screen according to a second embodiment of the present invention.

Fig. 4 is a schematic view of a stacked structure of the flexible display panel shown in fig. 3.

Fig. 5 is a schematic plan view of a flexible display device.

Fig. 6 is a flowchart of a method for manufacturing a flexible display screen according to an embodiment of the present invention.

Fig. 7 is a flowchart of a method for manufacturing a flexible display screen according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic exploded perspective view of a flexible display panel according to a first embodiment of the present invention, and fig. 2 is a schematic laminated structure of the flexible display panel. The flexible display screen 10 includes a first flexible board 11 and at least two flexible sub-display panels 13, where the at least two flexible sub-display panels 13 are spliced and attached to a first surface of the first flexible board 11 to form a complete flexible display panel 15.

In this embodiment, the first flexible board 11 is a polarizer, and the polarizer is used to control the polarization direction of light, so as to improve the display effect of the flexible display screen 10, and the at least two flexible sub-display panels 13 are spliced and attached by a colloid (not shown) to form a complete flexible display panel 15. The colloid is Optical Clear Additive (OCA). In other embodiments, the gel may also be other gels, such as hot melt adhesives, water gels, and the like. The thickness of the paste is such that the flexible sub-display panel 13 can be stably bonded to the first flexible sheet 11 and can be kept thin. When the flexible display screen 10 is manufactured, the colloid is coated on the first surface of the first flexible board 11, and then the flexible sub-display panels 13 are spliced. It is understood that the glue may be coated on the side surface of each flexible sub-display panel 13, and then the flexible sub-display panels 13 and the first surface of the first flexible board 11 are attached together. It is understood that the material of the colloid is not limited herein.

In other embodiments, the first flexible board 11 may also have other structures, such as a flexible cover board, a touch panel, a phase retardation film, a substrate, a TFT driving transistor layer, and the like; the at least two flexible sub-display panels 13 may also be tiled in other ways, such as by means of mosaicing, etc.

A gap 137 is formed between the edges of the adjacent flexible sub-display panels 13 to reserve an expansion space, so that the flexible sub-display panels 13 are prevented from being heated to expand and tilt. The gap 137 is also beneficial to release stress when the flexible display 10 is bent, so as to prevent the flexible display 10 from delaminating or breaking. In other embodiments, the edges of the adjacent flexible sub-display panels 13 may be closely arranged to eliminate the gap between the flexible sub-display panels 13 as much as possible to achieve seamless splicing, so as to improve the display effect of the flexible display screen 10.

In this embodiment, the number of the flexible sub-display panels 13 is 4. The 4 flexible sub-display panels 13 are arranged in an array on the first flexible board 11. It is understood that the number of the flexible sub-display panels 13 is not limited, and the arrangement of the flexible sub-display panels 13 on the first flexible board 11 is also not limited. The planar dimensions of the plurality of flexible sub-display panels 13 may be the same or different. The flexible sub-display panels 13 may be identical or different in shape, and the plurality of flexible sub-display panels 13 are spliced on the first flexible board 11 through the glue to form a complete flexible display panel 15.

Referring to fig. 1 again, the flexible sub-display panel 13 includes a display main body 133 and a connection module 135. The connection modules 135 are disposed adjacent to the edges of the flexible display panels 15, that is, the connection module 135 of each flexible sub-display panel 13 is located at the outer edge of the flexible display panel 15, and the connection module 135 is electrically connected to the display main body 133, the connection module 135 of the adjacent flexible sub-display panel 13, and a processing chip (not shown), so that the display main bodies 133 of all the flexible sub-display panels 13 are electrically connected to the processing chip, and the driving signal of the processing chip is transmitted to the display main bodies 131 of all the flexible sub-display panels 13 to drive all the flexible sub-display panels 13 to display.

According to the flexible display screen 10 provided by the embodiment, the plurality of flexible sub-display panels 13 are directly spliced on the first flexible board 11 through glue, namely, the plurality of small-sized flexible sub-display panels 13 are attached to the large-sized first flexible board 11 through a splicing mode, so that the application of the large-sized flexible display screen 10 is realized. Since no rigid connecting member is needed, the structure of the flexible display 10 is simplified and the assembly process of the flexible display 10 is simplified. Further, the plurality of flexible sub-display panels 13 are spliced under the condition that other connecting materials are not added and module stacking is not changed, splicing is firm, and seams are not obvious.

Referring to fig. 3 and fig. 4, fig. 3 is a schematic exploded perspective view of a flexible display 30 according to a second embodiment of the present invention, and fig. 4 is a schematic laminated structure view of the flexible display 30.

The flexible display screen 30 is different from the flexible display screen 10 provided in the first embodiment in that the flexible display screen 30 further includes a flexible touch panel 35, and the flexible touch panel 35 is attached to a side of the first flexible board 31 away from the flexible sub-display panel 33.

Specifically, the first flexible board 31 further includes a second surface 313 opposite to the first surface 311, and the plurality of flexible sub-display panels 33 are tiled on the first surface 311.

In this embodiment, the flexible touch panel 35 includes at least two flexible touch sub-panels 351, and the at least two flexible touch sub-panels 351 are connected to the second surface 313 through glue. In other embodiments, the number of the flexible touch panels 35 may also be one, that is, the flexible touch panel 35 is a complete piece and is not formed by splicing the flexible sub-touch panels 351. As for the colloid, the description of the first embodiment can be referred to, and the description is omitted here. It is understood that the at least two flexible sub-touch panels 351 can also be spliced on the second side 313 by other methods to form the flexible touch panel 35, such as being inlaid and the like.

The flexible display 30 further includes a second flexible board 37, and the second flexible board 37 is attached to a side of the flexible touch panel 35 away from the flexible sub-display panel 33. In other words, the second flexible board 37, the flexible touch panel 35, the first flexible board 31, and the flexible sub-display panel 33 are sequentially stacked.

In this embodiment, the first flexible board 31 is a polarizer, and the second flexible board 37 is a flexible cover. The second flexible board 37 includes a first region 371 and a second region 373 connected to the first region 371, the second region 373 may be disposed around the first region 371 in a frame shape, and the second region 373 may be disposed only on the side of the first region 371. The flexible sub-touch panels 351 are located in the first region 371, and the second region 373 is used for assembling with a frame.

The flexible display screen 30 provided by the embodiment further includes the flexible touch panel 35, so that the flexible display screen 30 further has a touch function when large-size display is realized, and the functions of the flexible display screen 30 are enriched. In addition, at least two flexible sub-touch panels 351 are spliced between the first flexible board 31 and the second flexible board 33 through glue to form the flexible touch panel 35, so that the assembly of the flexible touch panel 35 is facilitated.

Referring to fig. 5, the present invention further provides a flexible display device 100, which includes the flexible display screen 10 of the first embodiment or the flexible display screen 30 of the second embodiment.

Referring to fig. 6, an embodiment of the present invention further provides a method for manufacturing a flexible display screen, including the following steps:

step 601, splicing at least two flexible sub-display panels on a first surface of a first flexible plate with a preset size to form a complete flexible display panel. In this embodiment, the at least two flexible sub-display panels are spliced on the first surface of the first flexible board through glue, and the flexible display panel has the preset size. It is to be understood that the at least two flexible sub-display panels may or may not be the same size.

Through with two at least flexible sub display panel splices and forms the flexible display panel of large size on the first flexbile plate of utensil default dimension, so, under the condition that does not increase module thickness, through first flexbile plate will two at least flexible sub display panel link together and form the flexible display panel that accords with default dimension, and can ensure the pliability of flexible display screen.

Step 602, attaching a flexible touch panel to the second surface of the first flexible board, where the first surface of the first flexible board is opposite to the second surface of the first flexible board.

In this embodiment, the flexible touch panel includes at least two flexible sub-touch panels, and the flexible touch panel is attached to the second surface of the first flexible board, including: at least two flexible sub-touch panels are spliced on the second surface of the first flexible plate through glue.

Through with at least two sub-touch panel of flexibility concatenation is in the first flexplate of utensil default dimension, so, through first flexplate will at least two sub-touch panel of flexibility link together and realize the touch-control function of large size, and do not increase module thickness.

Step 603, a second flexible board is attached to one side of the flexible touch panel away from the flexible sub-display panel. In this embodiment, the second flexible board and the flexible touch panel are attached to one side of the flexible touch panel away from the flexible sub-display panel through glue. The second flexible board is a flexible cover board. The size of the second flexible plate is greater than or equal to the size of the first flexible plate.

The

steps

601, 602 and 603 are sequentially performed to improve the flatness between the layers of the flexible display screen. It is understood that step 603 and step 604 may be omitted, that is, the manufactured flexible display screen does not include the flexible touch panel and the second flexible board, and the first flexible board is a flexible cover.

It is understood that the first flexible plate may also be a polarizer or other plate-shaped structure, and the second flexible cover plate may also be other plate-shaped structure.

Referring to fig. 7, an embodiment of the present invention provides a method for manufacturing a flexible display screen, including the following steps:

step 701, at least two flexible sub-display panels are spliced on a first surface of a first flexible board with a preset size to form a flexible display panel. In this embodiment, the at least two flexible sub-display panels are spliced on the first surface of the first flexible board through glue. The flexible display panel with the preset size is formed by splicing the flexible sub-display panels with smaller sizes on the first flexible plate with the preset size.

Step 702, attaching the flexible touch panel to a second flexible board.

In this embodiment, the flexible touch panel includes at least two flexible sub-touch panels, and the flexible touch panel is attached to the second flexible board

And 703, attaching one side of the flexible touch panel, which is far away from the second flexible board, to a second surface of the first flexible board, wherein the first surface and the second surface are arranged oppositely.

According to the flexible display screen, the flexible display device and the manufacturing method of the flexible display screen, at least two flexible sub-display panels are spliced on the first surface of the first flexible plate, namely a plurality of small-size flexible sub-display panels are attached to the large-size first flexible plate in a splicing mode, and application of the large-size flexible display screen is achieved. In addition, at least two flexible sub-display panels are attached to the first surface of the first flexible plate in a colloid splicing mode, and rigid connecting pieces are not needed, so that the structure of the flexible display screen is simplified, and the assembling process of the flexible display screen is simplified. Furthermore, the flexible display screen further comprises a flexible touch panel, so that the flexible display screen has a touch function when large-size display is realized, and the functions of the flexible display screen are enriched. Furthermore, the flexible touch panel includes at least two flexible touch sub-panels, and the at least two flexible touch sub-panels are spliced on the second surface of the first flexible board.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

The utility model provides a flexible display screen which characterized in that, includes first flexbile plate and two at least flexible sub-display panel, two at least flexible sub-display panel concatenations the laminating and is in on the first face of first flexbile plate and form flexible display panel.
The flexible display screen of claim 1, further comprising a flexible touch panel attached to the second side of the first flexible sheet, the first side being opposite the second side.
The flexible display screen of claim 2, wherein the flexible touch panel comprises at least two flexible sub-touch panels tiled to the second side.
The flexible display screen of claim 3, further comprising a second flexible sheet that is attached to a side of the flexible touch panel that is distal from the first flexible sheet.
The flexible display of claim 4, wherein the second flexible sheet is a flexible cover sheet.
The flexible display of claim 1, wherein the first flexible sheet is a polarizer.
The flexible display of claim 6, wherein the first flexible sheet comprises a flexible cover sheet located outermost of the flexible display.
A flexible display screen as recited in claim 1, wherein a gap is formed between edges of adjacent flexible sub-display panels.
The flexible display screen of claim 1, wherein each flexible sub-display panel comprises a display main body and a connection module, the connection module is located at an outer edge of the flexible display panel, and the connection module is electrically connected to the display main body and electrically connected to the processing chip, so that the display main bodies of all the flexible sub-display panels are electrically connected to the processing chip, and the driving signal of the processing chip is transmitted to the display main bodies of all the flexible sub-display panels to drive all the flexible sub-display panels to display.
The flexible display of claim 1, wherein the at least two flexible sub-display panels are adhesively bonded to the first side of the first flexible sheet.
A flexible display device comprising a flexible display screen according to any one of claims 1 to 10.
A manufacturing method of a flexible display screen is characterized by comprising the following steps: and at least two flexible sub-display panels are jointed and attached to the first surface of the first flexible plate, so that the flexible display panel is formed.
The method of manufacturing of claim 12, further comprising the steps of: and attaching a flexible touch panel to a second surface of the first flexible board, wherein the first surface and the second surface are arranged oppositely.
The method of manufacturing according to claim 13, wherein the flexible touch panel comprises at least two flexible touch sub-panels, and the attaching the flexible touch panel to the second surface of the first flexible sheet comprises: and splicing and attaching at least two flexible sub-touch panels on the second surface of the first flexible plate.
The method of manufacturing of claim 13, wherein after attaching the flexible touch panel to the second side of the first flexible sheet, the method further comprises: and attaching a second flexible plate to one side of the flexible touch panel, which is far away from the flexible sub-display panel.
The method of manufacturing of claim 12, further comprising the steps of:

attaching the flexible touch panel to a second flexible board;

and attaching one side of the flexible touch panel, which is deviated from the second flexible board, to a second surface of the first flexible board, wherein the first surface and the second surface are arranged oppositely.
The method of manufacturing of claim 12, wherein splicing the at least two flexible sub-display panels on the first side of the first flexible sheet comprises: at least two flexible sub-display panels are spliced on the first face of the first flexible plate through glue.