WO2020097910A1

WO2020097910A1 - Flexible display screen and manufacturing method therefor, and flexible display device

Info

Publication number: WO2020097910A1
Application number: PCT/CN2018/115881
Authority: WO
Inventors: 沈贺文
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2018-11-16
Filing date: 2018-11-16
Publication date: 2020-05-22
Also published as: CN112703546A

Abstract

Disclosed is a flexible display screen (10), comprising a first flexible panel (11) and at least two flexible display sub-panels (13), the at least two flexible display sub-panels (13) being spliced on a first face of the first flexible panel (11) to form a complete flexible display panel (15). The present invention further provides a flexible display device (100) and a manufacturing method for 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 thereof, and a flexible display device.

Background technique

In the field of display, large-screen image display has been widely used, such as outdoor advertising, stage, conference room and so on. However, due to the limitations of display screen production equipment, technology and yield, the size of a single display screen cannot be made very large. In order to meet the needs of large screen display, a method of splicing multiple display screens is usually used. Existing display screen splicing technologies are mostly used in traditional rigid display screens.

Summary of the invention

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

A flexible display screen includes a first flexible board and at least two flexible sub-display panels. The at least two flexible sub-display panels are spliced on the first surface of the first flexible board to form a complete flexible display panel.

A flexible display device includes the flexible display screen as described above.

A method for manufacturing a flexible display screen includes: splicing at least two flexible sub-display panels on a first surface of a first flexible board, thereby forming a complete flexible display panel.

The flexible display screen, the flexible display device and the method for manufacturing the flexible display screen provided by the present invention, at least two flexible sub-display panels are spliced on the first surface of the first flexible board, that is, a plurality of small-sized flexible sub-display panels are passed The splicing method is attached to the first flexible board with a large size to realize the application of a large-sized flexible display screen.

BRIEF DESCRIPTION

In order to more clearly explain the technical solutions in the embodiments of the present invention, the drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic exploded perspective view of a flexible display screen provided by a first embodiment of the present invention.

FIG. 2 is a schematic diagram of the laminated structure of the flexible display screen shown in FIG. 1.

FIG. 3 is a schematic exploded perspective view of a flexible display screen provided by a second embodiment of the present invention.

FIG. 4 is a schematic diagram of the laminated structure of the flexible display screen shown in FIG. 3.

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

6 is a flowchart of a method for manufacturing a flexible display screen provided by an embodiment of the present invention.

7 is a flowchart of a method for manufacturing a flexible display screen provided by an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

Please refer to FIG. 1 and FIG. 2. FIG. 1 is a three-dimensional exploded schematic view of a flexible display screen provided by a first embodiment of the present invention. FIG. 2 is a schematic view of a laminated structure of a flexible display screen. The flexible display screen 10 includes a first flexible board 11 and at least two flexible sub-display panels 13, at least two flexible sub-display panels 13 are spliced and attached to the 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, thereby improving the display effect of the flexible display screen 10, and the at least two flexible sub-display panels 13 pass through the colloid (FIG. (Not shown) spliced to form a complete flexible display panel 15. The colloid is optical adhesive (Optical Clear Adesive, OCA). In other embodiments, the colloid can also be other colloids, such as hot melt adhesive, water adhesive, and the like. The thickness of the colloid is that the flexible sub-display panel 13 can be stably adhered to the first flexible board 11 while maintaining a relatively thin thickness. When preparing the flexible display screen 10, the colloid is coated on the first surface of the first flexible board 11, and then the flexible sub-display panel 13 is spliced. It can be understood that the colloid may be coated on the side of each flexible sub-display panel 13 first, and then the flexible sub-display panel 13 and the first surface of the first flexible board 11 are bonded together. It can be understood that the material of the colloid is not limited herein.

In other embodiments, the first flexible board 11 may also be other structures, such as a flexible cover plate, a touch panel, a phase retardation film, a substrate, a TFT driving transistor layer, etc .; the at least two flexible sub-display panels 13 may also be Splicing by other methods, such as mosaic.

There is a gap 137 between the edges of the adjacent flexible sub-display panels 13 to reserve expansion space to prevent the flexible sub-display panel 13 from rising due to thermal expansion. The gap 137 is also helpful for releasing stress when the flexible display screen 10 is bent, and avoiding the phenomenon of delamination or damage of the flexible display screen 10. In other embodiments, the edges of the adjacent flexible sub-display panels 13 can be closely arranged to eliminate gaps 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 flexible sub-display panels 13 is four. The four flexible sub-display panels 13 are arranged in an array on the first flexible board 11. It can be understood that the number of flexible sub-display panels 13 is not limited, and the arrangement manner 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 shapes of the flexible sub-display panels 13 may be the same or different. Multiple flexible sub-display panels 13 may be spliced on the first flexible board 11 by the glue to form a complete flexible display panel 15.

Please refer to FIG. 1 again. The flexible sub-display panel 13 includes a display body 133 and a connection module 135. The connection modules 135 are all arranged adjacent to the edge of the flexible display panel 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, the connection module 135 and the display body 133 and the adjacent flexible The connection module 135 of the sub-display panel 13 and the processing chip (not shown) are electrically connected, so that the display bodies 133 of all flexible sub-display panels 13 are electrically connected to the processing chip to transmit the driving signal of the processing chip The display main body 131 of all the flexible sub-display panels 13 drives all the flexible sub-display panels 13 to display.

In the flexible display screen 10 provided in this embodiment, a plurality of flexible sub-display panels 13 are directly spliced on the first flexible board 11 through a gel, that is, a plurality of small-sized flexible sub-display panels 13 are attached to a large-sized first On a flexible board 11, the application of a large-sized flexible display screen 10 is realized. Since there is no need to use rigid connectors, the structure of the flexible display screen 10 and the assembly process of the flexible display screen 10 are simplified. Further, the plurality of flexible sub-display panels 13 are spliced without adding other connection materials and without changing the module stack, the splicing is reliable, and the seam is not obvious.

Please refer to FIGS. 3 and 4. FIG. 3 is a three-dimensional exploded schematic diagram of a flexible display screen 30 according to a second embodiment of the present invention. FIG. 4 is a schematic diagram of a laminated structure of the flexible display screen 30.

The flexible display screen 30 differs 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. The flexible touch panel 35 and the first flexible board 31 are away from the flexible sub-display panel 33. The sides fit together.

Specifically, the first flexible board 31 further includes a second surface 313 opposite to the first surface 311, and a plurality of flexible sub-display panels 33 are spliced 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 sub-touch panels 351 are spliced on the second surface 313 by using glue. In other embodiments, the number of the flexible touch panel 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. Regarding the colloid, reference may be made to the description in the first embodiment, and details are not described here. It can be understood that the at least two flexible sub-touch panels 351 may also be spliced on the second surface 313 by other methods to form the flexible touch panel 35, such as inlaying and the like.

The flexible display screen 30 further includes a second flexible board 37, and the second flexible board 37 and the side of the flexible touch panel 35 away from the flexible sub-display panel 33 are attached together. 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 stacked in this order.

In this embodiment, the first flexible plate 31 is a polarizer, and the second flexible plate 37 is a flexible cover plate. The second flexible board 37 includes a first area 371 and a second area 373 connected to the first area 371. The second area 373 may be arranged in a frame shape around the first area 371, or the second area 373 may be provided only in the first area The side of the area 371. The plurality of flexible sub-touch panels 351 are located in the first area 371, and the second area 373 is used for assembly with the frame.

The flexible display screen 30 provided in this embodiment further includes a flexible touch panel 35, so that the flexible display screen 30 also has a touch function when realizing a large-size display, which enriches the functions of the flexible display screen 30. In addition, at least two flexible sub-touch panels 351 are spliced between the first flexible board 31 and the second flexible board 33 to form a flexible touch panel 35, which facilitates the assembly of the flexible touch panel 35.

Referring to FIG. 5, the present invention also provides a flexible display device 100 including the flexible display screen 10 provided in the first embodiment or the flexible display screen 30 provided in the second embodiment.

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

Step 601, at least two flexible sub-display panels are spliced on the first surface of the first flexible board 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 by gel, and the flexible display panel has the preset size. It can be understood that the sizes of the at least two flexible sub-display panels may be the same or different.

A large-size flexible display panel is formed by splicing the at least two flexible sub-display panels on a first flexible board with a preset size, so that, without increasing the thickness of the module, the first flexible board The at least two flexible sub-display panels are connected together to form a flexible display panel conforming to a preset size, and the flexibility of the flexible display screen can be ensured.

Step 602, the flexible touch panel is attached to the second surface of the first flexible board, and 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 of the flexible The sub-touch panel is spliced on the second surface of the first flexible board through glue.

By splicing the at least two flexible sub-touch panels to a first flexible board with a preset size, in this way, the first flexible board connects the at least two flexible sub-touch panels together to achieve a large size Touch function without increasing the thickness of the module.

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

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

It can be understood that the first flexible plate may also be a polarizing plate or other plate-like structures, and the second flexible cover plate may also be other plate-like structures.

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 the first surface of the 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 by glue. The flexible display panel with the preset size is formed by splicing the flexible sub-display panel with a smaller size on the first flexible board with the preset size.

Step 702, the flexible touch panel is attached to the 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

Step 703, the side of the flexible touch panel facing away from the second flexible board is bonded to the second surface of the first flexible board, the first surface and the second surface are oppositely arranged.

In the flexible display screen, the flexible display device and the method for manufacturing a flexible display screen provided by the present invention, at least two flexible sub-display panels are spliced on the first surface of the first flexible board, that is, a plurality of small-sized flexible sub-display panels are spliced The method fits on the first flexible board with a large size to realize the application of a large-size flexible display screen. In addition, at least two flexible sub-display panels are attached to the first surface of the first flexible board by means of glue splicing. Since no rigid connecting member is required, the structure of the flexible display screen and the assembly process of the flexible display screen are simplified . Further, since the flexible display screen further includes a flexible touch panel, the flexible display screen also has a touch control function when realizing large-scale display, thereby enriching the functions of the flexible display screen. Furthermore, the flexible touch panel includes at least two flexible touch sub-panels, and the at least two flexible sub-touch panels are spliced on the second surface of the first flexible board.

The above is a preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and retouches can be made. These improvements and retouches are also regarded as This is the protection scope of the present invention.

Claims

A flexible display screen, characterized by comprising a first flexible board and at least two flexible sub-display panels, the at least two flexible sub-display panels are spliced and attached to the first surface of the first flexible board to form Flexible display panel.
The flexible display screen according to claim 1, wherein the flexible display screen further comprises a flexible touch panel, the flexible touch panel and the second surface of the first flexible board are attached together, so The first surface is opposite to the second surface.
The flexible display screen according to claim 2, wherein the flexible touch panel comprises at least two flexible sub-touch panels, and the at least two flexible sub-touch panels are spliced and attached to the second surface on.
The flexible display screen according to claim 3, wherein the flexible display screen further comprises a second flexible board, and the second flexible board and the flexible touch panel are away from a side of the first flexible board Fit together.
The flexible display screen according to claim 4, wherein the second flexible board is a flexible cover board.
The flexible display screen according to claim 1, wherein the first flexible board is a polarizer.
The flexible display screen according to claim 6, wherein the first flexible board comprises a flexible cover plate located at the outermost side of the flexible display screen.
The flexible display screen according to claim 1, wherein a gap is formed between edges of adjacent flexible sub-display panels.
The flexible display screen according to claim 1, wherein each flexible sub-display panel includes a display body and a connection module, the connection module is located at an outer edge of the flexible display panel, the connection module and the display The main body is electrically connected and electrically connected to the processing chip, so that the display main bodies of all flexible sub-display panels are electrically connected to the processing chip to transmit the driving signal of the processing chip to the display main bodies of all flexible sub-display panels All the flexible sub-display panels are driven to display.
The flexible display screen according to claim 1, wherein the at least two flexible sub-display panels are spliced on the first surface of the first flexible board by glue.
A flexible display device, comprising the flexible display screen according to any one of claims 1-10.
A method for manufacturing a flexible display screen is characterized by comprising: bonding at least two flexible sub-display panels on a first surface of a first flexible board by splicing, thereby forming a flexible display panel.
The manufacturing method according to claim 12, wherein the manufacturing method further comprises the step of attaching a flexible touch panel to the second surface of the first flexible board, the first surface and the The second side is set oppositely.
The manufacturing method according to claim 13, wherein the flexible touch panel includes at least two flexible touch sub-panels, and the flexible touch panel is attached to the second surface of the first flexible board The above includes: splicing and pasting at least two of the flexible sub-touch panels on the second surface of the first flexible board.
The manufacturing method according to claim 13, wherein after the flexible touch panel is attached to the second surface of the first flexible board, the manufacturing method further comprises the step of: attaching the second flexible board It is attached to the side of the flexible touch panel away from the flexible sub-display panel.
The manufacturing method according to claim 12, wherein the manufacturing method further comprises the steps of:

Lay the flexible touch panel on the second flexible board;

The side of the flexible touch panel facing away from the second flexible board is attached to the second surface of the first flexible board, and the first surface is opposite to the second surface.
The manufacturing method according to claim 12, wherein the splicing at least two flexible sub-display panels on the first surface of the first flexible board comprises: splicing at least two flexible sub-display panels in the The first side of the first flexible board.