CN115755464A

CN115755464A - Display device and backlight module

Info

Publication number: CN115755464A
Application number: CN202211419663.8A
Authority: CN
Inventors: 刘震; 郑浩旋
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-03-07

Abstract

The application provides a display device and a backlight module, wherein the backlight module comprises a back plate, a plurality of connecting structures and a plurality of driving devices, and specifically, the back plate comprises a plurality of sub-plates arranged along a first direction; two adjacent daughter boards of the plurality of connecting structures are movably connected through at least one connecting structure; a plurality of drive arrangement are connected with a plurality of connection structure one-to-one, and drive arrangement is used for driving connection structure to change the planar contained angle in two continuous daughter boards place, and then change backlight unit and display device's camber, improve the user and use experience.

Description

Display device and backlight module

Technical Field

The present application relates to the field of display technologies, and in particular, to a display device and a backlight module.

Background

With the development of Display technology, liquid Crystal Displays (LCDs) are developed toward portability, thinning, and curved screens.

The curved-surface liquid crystal display is more and more popular with users due to good viewing angle and user experience, and therefore, the backlight module of the liquid crystal display is also continuously improved to meet the requirements of the curved-surface liquid crystal display.

However, the curvature of the existing backlight module is fixed before leaving the factory, and the user end cannot adjust the curvature, which affects the user experience.

Disclosure of Invention

The application mainly provides a display device and a backlight module to solve the problem that the curvature of the existing backlight module cannot be adjusted at a user side.

In order to solve the technical problem, the application adopts a technical scheme that: provided is a backlight module, including: a backplane including a plurality of sub-boards arranged along a first direction; the adjacent two daughter boards are movably connected through at least one connecting structure; and the driving devices are connected with the connecting structures in a one-to-one correspondence manner and are used for driving the connecting structures so as to change the included angle of the plane where the two daughter boards are connected.

In one embodiment, each of the connection structures includes a first shaft, a first connection structure, and a second connection structure; the extending direction of the first rotating shaft is perpendicular to the first direction, the first connecting structure and the second connecting structure are respectively fixed on the surfaces of two adjacent daughter boards, and the first connecting structure and the second connecting structure are rotatably connected through the first rotating shaft; each driving device comprises a first connecting unit, a second connecting unit and a driving unit, wherein a first end of the first connecting unit and a first end of the second connecting unit are connected with the driving unit, a second end of the first connecting unit is connected with the first connecting structure, and a second end of the second connecting unit is connected with the second connecting structure; the driving unit is used for driving the first connecting unit and the second connecting unit to move in the first direction, so that the first connecting structure and the second connecting structure are driven to move, and the included angle of the planes of the two connected sub-boards is changed; when the driving unit drives the first connecting unit and the second connecting unit to move, the moving directions of the first connecting unit and the second connecting unit are opposite.

In an embodiment, the first connecting structure and the second connecting structure each include a first supporting plate and a second supporting plate that are disposed opposite to each other, and a supporting column located between the first supporting plate and the second supporting plate, a second end of the first connecting unit is connected to the supporting column on the first connecting structure, and a second end of the second connecting unit is connected to the supporting column on the second connecting structure.

In an embodiment, the second end of the first connection unit has a first through hole through which the support pillar on the first connection structure passes, and the second end of the second connection unit has a second through hole through which the support pillar on the second connection structure passes.

In one embodiment, the first end of the first connection unit has a first engagement portion, and the first end of the second connection unit has a second engagement portion; the driving unit includes: a housing having an accommodating chamber; the rotating piece is rotatably arranged in the accommodating cavity, and the outer surface of the rotating piece is provided with a third meshing part; the first meshing part and the second meshing part are respectively positioned on two sides of the rotating shaft of the rotating part and meshed with the third meshing part.

In one embodiment, the driving unit further includes: the driving shaft of the driving motor is connected with the rotating shaft of the rotating part, and the driving motor is used for driving the rotating part to rotate under the electrified condition.

In an embodiment, the drive unit is a hydraulic drive unit.

In one embodiment, the backlight module further comprises: and the control unit is electrically connected with the plurality of driving units and is used for controlling the plurality of driving units to work.

In one embodiment, the backlight module further comprises: a light guide plate; the back plate is arranged on one side of the back plate; the plurality of connecting structures and the plurality of driving devices are positioned on one side of the back plate, which is far away from the light guide plate.

In order to solve the technical problem, the application adopts a technical scheme that: the display device comprises a backlight module and a display panel, wherein the backlight module is any one of the backlight modules; the display panel is located on the light emitting side of the backlight module and is a flexible display panel.

The beneficial effect of this application is: different from the prior art, the present application provides a display device and a backlight module, wherein the backlight module includes a back plate, a plurality of connection structures, and a plurality of driving devices, and specifically, the back plate includes a plurality of sub-plates arranged along a first direction; two adjacent daughter boards of the plurality of connecting structures are movably connected through at least one connecting structure; the driving devices are connected with the connecting structures in a one-to-one corresponding mode and used for driving the connecting structures so as to change the included angle of the plane where the two connected daughter boards are located. Specifically, the backlight unit that this application provided, user can change backlight unit's camber through drive arrangement and connection structure, and then change display device's camber to this abundantly uses the scene, improves the user and uses experience.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts, wherein:

FIG. 1 is a schematic structural diagram of an embodiment of a display device provided in the present application;

FIG. 2 is a schematic diagram of a film structure of an embodiment of a display device provided herein;

FIG. 3 isbase:Sub>A cross-sectional view of the display device shown in FIG. 1 taken along line A-A;

FIG. 4 is an enlarged view of a structure of a region B in the display device shown in FIG. 1;

FIG. 5 is a schematic structural diagram of an embodiment of a connection structure provided in the present application;

FIG. 6 is a schematic structural diagram of an embodiment of a driving apparatus provided in the present application;

fig. 7 is a cross-sectional view of an embodiment of a drive device provided herein.

The reference numbers illustrate:

a display device-300; a backlight module-100; -a back plate-10; a light guide plate-20; a light source-30; a daughter board-101; a first direction-X; connecting structure-40; a first rotating shaft-41; a first connecting structure-42; a second connecting structure-43; a first engaging portion-511; a second engagement portion-521; a first support plate-44; a second support plate-45; support post-46; a base-47; a drive device-50; a first connection unit-51; a second connecting unit-52; a drive unit-53; a housing-531; a rotor-532; a third engaging portion-5321; a first via-512; a second through-hole-522; a control unit-60; a display panel-200; a first substrate-210; an upper polarizing layer-211; an upper glass substrate-212; a common electrode layer-213; a color filter layer-214; black matrix layer-215; a second substrate-220; a lower polarizing layer-221; a substrate-222; TFT structure layer-223; pixel electrode array-224; a liquid crystal layer-230.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

The terms "first", "second" and "third" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an embodiment of a display device provided in the present application; FIG. 2 is a schematic diagram of a film structure of an embodiment of a display device provided herein;

fig. 3 isbase:Sub>A cross-sectional view of the display device shown in fig. 1 taken along linebase:Sub>A-base:Sub>A. Specifically, the display device 300 includes a backlight module 100 and a display panel 200, wherein the backlight module 100 includes a back plate 10, a light guide plate 20 and a light source 30, the back plate 10 is located at the outermost layer of the backlight module 100, the light guide plate 20 is disposed at one side of the back plate 10, the light source 30 may be a side-in light source 30, and the light source 30 is disposed at the side of the light guide plate 20. The backlight module 100 may further include other functional layers, for example, a reflective layer (not shown) disposed between the back plate 10 and the light guide plate 20, a diffusion layer (not shown) disposed on a side (light exit side) of the light guide plate 20 away from the back plate 10, a prism layer (not shown) disposed on a side (light exit side) of the diffusion layer away from the light guide plate 20, and a light enhancement layer (not shown) disposed on a side (light exit side) of the prism layer away from the diffusion layer, which are not limited herein.

The display panel 200 is located on the light-emitting side of the backlight module 100, and the display panel 200 is a liquid crystal display panel and includes a first substrate 210, a second substrate 220, and a liquid crystal layer 230 disposed between the first substrate 210 and the second substrate 220.

Specifically, when the display device 300 is operated, the light emitted from the light source 30 passes through the light guide plate 20, and enters the display panel 200 from the light emitting side of the light guide plate 20, the light entering the display panel 200 passes through the second substrate 220 and then passes through the liquid crystal layer 230, the polarization angle of the light is changed by the arrangement of the liquid crystal molecules in the liquid crystal layer 230, the intensity and color of the light which finally appears can be controlled by changing the voltage value applied to the liquid crystal molecules, and finally the light exits through the first substrate 210, so that the corresponding picture is displayed, and thus, the color combination with different hues can be changed on the display panel 200.

The first substrate 210 may further include an upper polarizer layer 211, an upper glass substrate 212, a common electrode layer 213, a color filter layer 214, and a black matrix layer 215, which are stacked. The second substrate 220 may further include a lower polarizing layer 221, a substrate 222, a TFT (Thin Film Transistor) structure layer 223, and a pixel electrode array 224, which are stacked. Of course, the first substrate 210 and the second substrate 220 may further include other functional layers, such as an alignment layer (not shown), which is not limited herein. The first substrate 210 may be a color filter substrate, the second substrate 220 may be an array substrate, and the substrate 222 may be a glass substrate.

In order to improve the user experience and meet the requirements of the user for different curvatures of the display device 300 in different use scenes, the display device 300 provided in the present application enables the user end to change the curvature of the display device 300 through the backlight module 100, specifically, please refer to fig. 1 continuously, the backlight module 100 further includes a plurality of connection structures 40 and a plurality of driving devices 50, specifically, the backplane 10 includes a plurality of sub-boards 101 arranged along the first direction X; two adjacent sub-boards 101 are movably connected through at least one connecting structure 40; the driving devices 50 are connected with the connecting structures 40 in a one-to-one correspondence manner, and the driving devices 50 are used for driving the connecting structures 40 so as to change the included angle of the plane where the two connected sub-boards 101 are located through the connecting structures 40, thereby changing the curvature of the backlight module 100 and the display device 300 using the backlight module 100, enriching the use scenes of the display device 300 and improving the use experience of users.

It should be noted that, the other functional layers of the backlight module 100 except the backplane 10 provided by the present application all have certain flexibility, and the display panel 200 is a flexible display panel 200, and the other functional layers of the backlight module 100 except the backplane 10 and the display panel 200 can be configured to have a certain curvature under an external force (for example, under the action of the backplane 10) so as to meet the user requirement. In addition, the curvature of the display device 300 and other functional layers of the backlight module 100 except the back plate 10 is changed by the back plate 10, and it is required to ensure that the other functional layers of the backlight module 100 except the back plate 10 and the display panel 200 are not damaged under the curvature.

Wherein, the curvature range of the other functional layers of the backlight module 100 except the back plate 10 and the display panel 200 is 1000-1800m ^-1 The smaller the curvature, the greater the degree of bending; the greater the curvature, the less the degree of bending.

In order to ensure that one side of the back plate 10 close to the light guide plate 20 is a flat surface, and the light emitting effect of the backlight module 100 is ensured, in this embodiment, the plurality of connecting structures 40 and the plurality of driving devices 50 are disposed on one side of the back plate 10 deviating from the light guide plate 20, so as to avoid the connecting structures 40 and/or the driving devices 50 from affecting the setting of the light guide plate 20, thereby causing the light angle deviation emitted from the light guide plate 20, and further causing the display panel 200 to display uneven pictures.

Of course, a plurality of connecting structures 40 and a plurality of driving devices 50 may be disposed on one side of the back plate 10 close to the light guide plate 20. For example, in this embodiment, a flexible material layer (not shown) is disposed between the back plate 10 and the light guide plate 20, the flexible material layer covers the plurality of connecting structures 40 and the plurality of driving devices 50, and a side of the flexible material layer facing away from the back plate 10 is a flat surface. Wherein, the material of flexible material layer can be silica gel, bubble cotton etc..

Referring to fig. 4 to 6, fig. 4 is an enlarged view of a structure of a region B in the display device shown in fig. 1; FIG. 5 is a schematic structural diagram of an embodiment of a connection structure provided in the present application; fig. 6 is a schematic structural diagram of an embodiment of a driving device provided in the present application.

Each coupling structure 40 further includes a first rotating shaft 41, a first coupling structure 42, and a second coupling structure 43. Specifically, the extending direction of the first rotating shaft 41 is perpendicular to the first direction X, the first connecting structure 42 and the second connecting structure 43 are respectively fixed on the surfaces of two adjacent sub-boards 101, and the first connecting structure 42 and the second connecting structure 43 are rotatably connected through the first rotating shaft 41, so that two adjacent sub-boards 101 can be rotatably connected.

Each driving device 50 includes a first connecting unit 51, a second connecting unit 52, and a driving unit 53. Specifically, a first end of the first connection unit 51 and a first end of the second connection unit 52 are connected to the driving unit 53, a second end of the first connection unit 51 is connected to the first connection structure 42, and a second end of the second connection unit 52 is connected to the second connection structure 43. The driving unit 53 is configured to drive the first connecting unit 51 and the second connecting unit 52 to move in the first direction X, and further drive the first connecting structure 42 to move through the first connecting unit 51, and drive the second connecting structure 43 to move through the second connecting unit 52, so as to change an included angle between planes where the two daughter boards 101 are connected. Wherein, when the driving unit 53 drives the first connecting unit 51 and the second connecting unit 52 to move, the directions of the first connecting unit 51 and the second connecting unit 52 are opposite.

It can be understood that the first connection unit 51 and the second connection unit 52 are located at a side of the back plate 10 facing away from the light guide plate 20, and the directions of movement of the first connection unit 51 and the second connection unit 52 are opposite. The initial state of the back board 10 is a plane, that is, the included angle between two adjacent sub boards 101 is 180 °. When the second ends of the first and

second connection units

51 and 52 move away from the driving unit 53, the two adjacent sub-boards 101 are bent toward the light guide plate 20, the included angle between the two adjacent sub-boards 101 decreases, and the larger the distance that the second ends of the first and

second connection units

51 and 52 move, the larger the bending degree is, and the smaller the included angle between the two adjacent sub-boards 101 is. In this state, when the second end of the first connection unit 51 and the second end of the second connection unit 52 move toward the direction close to the driving unit 53, the included angle between two adjacent sub-boards 101 gradually increases, and when the included angle between two adjacent sub-boards 101 is 180 °, the back board 10 returns to the initial state.

In the first embodiment of the driving unit 53 provided by the present application, the driving unit 53 is a hydraulic driving unit, the hydraulic driving unit may be an existing hydraulic device, and the hydraulic driving unit is configured to drive the first connecting unit 51 and the second connecting unit 52 to move in the first direction X, so that the first connecting structure 42 is driven to move by the first connecting unit 51, and the second connecting structure 43 is driven to move by the second connecting unit 52, thereby changing an included angle between planes where two sub-boards 101 are connected.

Referring to fig. 6 and 7, fig. 7 is a cross-sectional view of an embodiment of the driving device provided in the present application, and a second embodiment of the driving unit 53 provided in the present application, the driving unit 53 is a mechanical driving unit, the mechanical driving unit includes a housing 531 and a rotating member 532, the housing 531 has a receiving cavity; the rotating member 532 is rotatably disposed in the receiving cavity. The first end of the first connection unit 51 has a first engagement portion 511, the first end of the second connection unit 52 has a second engagement portion 521, and the outer surface of the rotation member 532 has a third engagement portion 5321; the first engagement portion 511 and the second engagement portion 521 are respectively located at both sides of the rotation shaft of the rotation member 532, and are engaged with the third engagement portion 5321.

Specifically, when the rotation member 532 is driven to rotate by an external force, the third engagement portion 5321 drives the first engagement portion 511 and the second engagement portion 521 to move, and since the first engagement portion 511 and the second engagement portion 521 are respectively located at both sides of the rotation shaft of the rotation member 532, the first engagement portion 511 and the second engagement portion 521 move in opposite directions, that is, the first connection unit 51 and the second connection unit 52 move in opposite directions.

As an alternative embodiment, the first and second engaging

portions

511 and 521 may be racks, and the third engaging portion 5321 may be a gear, thereby forming a rack and pinion mechanism.

The rotation of the rotating member 532 may be driven manually or automatically, and is not limited herein.

For example, the mechanical driving unit further includes an external knob (not shown), the external knob is connected to the rotating shaft of the rotating member 532, and the user drives the rotating member 532 to rotate through the external knob.

For another example, the mechanical driving unit further includes a driving motor (not shown), a driving shaft of the driving motor is connected to the rotating shaft of the rotating member 532, and the driving motor is configured to drive the rotating member 532 to rotate under the power-on condition.

When the driving unit 53 is a hydraulic driving unit or the driving unit 53 further includes a driving motor, the backlight module 100 further includes a control unit 60 (see fig. 1), and the control unit 60 is electrically connected to the plurality of hydraulic driving units and is configured to control the plurality of hydraulic driving units to operate. Alternatively, the control unit 60 is electrically connected to the plurality of driving motors in the plurality of driving units 53, and is configured to control the plurality of driving motors to operate. Wherein, the control unit 60 may be integrated with a driving circuit in the display device 300; alternatively, the control unit 60 may be provided separately, and is not limited herein.

Referring to fig. 4 and 5, each of the first and second connection structures 42 and 43 includes a first support plate 44 and a second support plate 45 disposed opposite to each other, and a support column 46 located between the first and

second support plates

44 and 45, a second end of the first connection unit 51 is connected to the support column 46 on the first connection structure 42, and a second end of the second connection unit 52 is connected to the support column 46 on the second connection structure 43. The connection modes of the first connection unit 51 and the second connection unit 52 and the support column 46 may be fixed, clamped, movably connected, and the like, which is not limited herein.

In this application, the first connection unit 51 and the second connection unit 52 are movably connected to the support column 46. Specifically, referring to fig. 6, the second end of the first connecting unit 51 has a first through hole 512, the supporting pillar 46 on the first connecting structure 42 passes through the first through hole 512, and the first connecting unit 51 is movably connected to the supporting pillar 46. The second end of the second connecting unit 52 has a second through hole 522, the supporting column 46 of the second connecting structure 43 passes through the second through hole 522, and the first connecting unit 51 is movably connected with the supporting column 46. Through the arrangement mode, stress borne by the first connection unit 51 when the first connection unit 42 is driven and stress borne by the second connection unit 52 when the second connection unit 43 is driven can be reduced, and further, the first connection unit 51, the second connection unit 52, the first connection structure 42 and/or the second connection structure 43 are prevented from being broken or deformed due to overlarge stress borne in the process of changing the curvature of the backboard 10.

Further, first connection structure 42 and second connection structure 43 all include base 47, and base 47 and daughter board 101 fixed connection, first backup pad 44 and second backup pad 45 fixed set up in the one side that base 47 deviates from daughter board 101. In order to increase structural stability, each sub-board 101, and the base 47, the first support plate 44, and the second support plate 45 provided on the sub-board 101 may be integrally formed.

Different from the prior art, the backlight module 100 and the display device 300 provided in the present application include a back plate 10, a plurality of connecting structures 40, and a plurality of driving devices 50. Specifically, the backplane 10 includes a plurality of sub-boards 101 arranged along the first direction X; two adjacent daughter boards 101 of the plurality of connecting structures 40 are movably connected through at least one connecting structure 40; the driving devices 50 are connected with the connecting structures 40 in a one-to-one correspondence manner, and the driving devices 50 are used for driving the connecting structures 40 so as to change an included angle of a plane where the two sub-boards 101 are connected. The driving unit 53 in the driving device 50 may be a hydraulic driving unit or a mechanical driving unit. Specifically, the user end can change the curvature of the backlight module 100 through the driving device 50 and the connecting structure 40, and further change the curvature of the display device 300, so as to enrich the use scene and improve the user experience.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims

1. A backlight module, comprising:

a backplane including a plurality of sub-boards arranged along a first direction;

the adjacent two daughter boards are movably connected through at least one connecting structure;

and the driving devices are connected with the connecting structures in a one-to-one correspondence manner and are used for driving the connecting structures so as to change the included angle of the plane where the two daughter boards are connected.

2. A backlight module according to claim 1, wherein each of the connection structures comprises a first hinge, a first connection structure and a second connection structure; the extending direction of the first rotating shaft is perpendicular to the first direction, the first connecting structure and the second connecting structure are respectively fixed on the surfaces of two adjacent daughter boards, and the first connecting structure and the second connecting structure are rotatably connected through the first rotating shaft;

each driving device comprises a first connecting unit, a second connecting unit and a driving unit, wherein a first end of the first connecting unit and a first end of the second connecting unit are connected with the driving unit, a second end of the first connecting unit is connected with the first connecting structure, and a second end of the second connecting unit is connected with the second connecting structure; the driving unit is used for driving the first connecting unit and the second connecting unit to move in the first direction, so that the first connecting structure and the second connecting structure are driven to move, and the included angle of the plane where the two daughter boards are connected is changed;

when the driving unit drives the first connecting unit and the second connecting unit to move, the moving directions of the first connecting unit and the second connecting unit are opposite.

3. A backlight module according to claim 2, wherein the first and second connecting structures each comprise a first and second supporting plates disposed oppositely and a supporting column disposed between the first and second supporting plates, the second end of the first connecting unit is connected to the supporting column of the first connecting structure, and the second end of the second connecting unit is connected to the supporting column of the second connecting structure.

4. The backlight module according to claim 3, wherein the second end of the first connecting unit has a first through hole, the supporting pillar of the first connecting structure passes through the first through hole, the second end of the second connecting unit has a second through hole, and the supporting pillar of the second connecting structure passes through the second through hole.

5. The backlight module according to claim 2, wherein the first end of the first connecting unit has a first engaging portion, and the first end of the second connecting unit has a second engaging portion; the driving unit includes:

a housing having an accommodating chamber;

the rotating piece is rotatably arranged in the accommodating cavity, and the outer surface of the rotating piece is provided with a third meshing part;

the first meshing part and the second meshing part are respectively positioned on two sides of the rotating shaft of the rotating part and meshed with the third meshing part.

6. The backlight module according to claim 5, wherein the driving unit further comprises:

the driving shaft of the driving motor is connected with the rotating shaft of the rotating part, and the driving motor is used for driving the rotating part to rotate under the electrified condition.

7. A backlight module according to claim 2, wherein the driving unit is a hydraulic driving unit.

8. A backlight module according to claim 6 or 7, further comprising:

and the control unit is electrically connected with the plurality of driving units and is used for controlling the plurality of driving units to work.

9. A backlight module according to claim 1, further comprising:

a light guide plate; the back plate is arranged on one side of the back plate;

the plurality of connecting structures and the plurality of driving devices are positioned on one side of the back plate, which is far away from the light guide plate.

10. A display device, comprising:

a backlight module as claimed in any one of claims 1 to 9;

and the display panel is positioned on the light emergent side of the backlight module and is a flexible display panel.