CN211294508U

CN211294508U - Can tensile electronic display tablet

Info

Publication number: CN211294508U
Application number: CN201822238004.XU
Authority: CN
Inventors: 常锡宇
Original assignee: Henan Xiaohua Software Technology Co ltd
Current assignee: Henan Xiaohua Software Technology Co ltd
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2020-08-18
Anticipated expiration: 2028-12-27

Abstract

The utility model relates to a stretchable electronic display board, which comprises flexible electronic paper, a base for accommodating the flexible electronic paper, and a foldable folding frame fixed at the edge of the long edge of the upper surface of the base for hanging the flexible electronic paper; a rolling shaft which is used for rolling up the flexible electronic paper and manually realizes rotation is arranged in the base; a rectangular opening for the flexible electronic paper to enter and exit is formed in the side wall of the base; one end of the flexible electronic paper is fixedly connected with the rotating shaft, and the other end of the flexible electronic paper extends out of the base and is fixedly connected with the upper edge of the folding frame. The flexible electronic paper is used for referring to spray painting as a content display medium, displayed contents can be changed and replaced, and information which can be covered by the contents is enriched while the content display error is avoided; by utilizing the characteristic that the flexible electronic paper still displays after being powered off, power supply is not needed in the content display process, and the moving convenience of the electronic display equipment is greatly improved; the bracket can be folded to reduce the volume when not in use, and is convenient to carry and transport.

Description

Can tensile electronic display tablet

Technical Field

The utility model relates to an electron show tablet technical field, concretely relates to can tensile electron show tablet.

Background

As the technology matures gradually, flexible electronic paper, as a new generation of electronic display solution, has begun to be exposed in the field of electronic displays. Among them, the flexible screen display technology of "electronic paper" taking electronic ink technology as the leading technical scheme is already mature in the fields of electronic books, electronic billboards, etc. Compared with the conventional LED and LCD display screens, the electronic paper is adopted as the display unit, so that the display screen has the advantages of real and natural display effect and low energy consumption, and particularly, after the flexible display screen technology appears, the display screen can adapt to a complex display surface, so that the display screen is really attached to the display surface. As an example, a flexible electronic paper display screen is used as a vamp decoration, so that the vamp has a pattern with a real appearance, and the pattern can be adjusted.

As one of the important means of content display, a display board or a display rack plays an important role in field display, for example, in a recruiting party or a product recommendation, and a roll up banner is often used as an important tool for displaying information. However, the existing roll screen usually adopts spray painting as a display interface, and raw materials used in the spray painting process have great pollution to the environment; meanwhile, the spray painting can not be changed once being formed, which is not beneficial to the correction of the displayed content and the saving of the cost. The conventional LED and LCD display screens are general in mobile portability and storability, are only suitable for displaying and playing at fixed positions, and have limited applicable scenes because external power supply is required.

SUMMERY OF THE UTILITY MODEL

The utility model provides a can tensile electron show tablet, aim at provides an electron show tablet based on flexible electronic paper, has solved conventional show tablet and can not change and the not good problem of common electron show screen removal portability.

The utility model adopts the technical scheme as follows:

a stretchable electronic display board comprises flexible electronic paper, a base for containing the flexible electronic paper, and a foldable folding frame which is fixed on the edge of a long edge of the upper surface of the base and used for hanging the flexible electronic paper; a rolling shaft which is used for rolling up the flexible electronic paper and manually realizes rotation is arranged in the base; a rectangular opening for the flexible electronic paper to enter and exit is formed in the side wall of the base; one end of the flexible electronic paper is fixedly connected with the rotating shaft, and the other end of the flexible electronic paper extends out of the base and is fixedly connected with the upper edge of the folding frame.

Preferably, the base is a hollow cuboid with a cavity inside; a roller which is parallel to the long edge of the base, is centrally positioned in the base, is used for rolling and releasing the flexible electronic paper and can rotate relative to the hollow cuboid is arranged in the base; one end of the rolling shaft extends out of the side wall of the base where the width and the height are located; the side wall of the base, which is positioned right below the folding frame, is provided with a rectangular opening for the flexible electronic paper to enter and exit.

More preferably, the side wall of one end of the roller extending out of the base is provided with anti-skid textures.

More preferably, strip-shaped rollers are arranged above and below the rectangular opening.

More preferably, a counterweight block for adjusting the gravity center is arranged on the side surface of the base far away from the folding frame.

Preferably, the folding frame comprises a lower cross beam, an upper cross beam and a scissor type bracket fixed between the upper cross beam and the lower cross beam; the lower cross beam is fixed on the edge of the long edge of the upper surface of the base; the scissor type bracket is formed by connecting a plurality of groups of X-shaped scissor fork structures in series up and down; each scissor structure comprises two supporting sheets which are crossed and are symmetrical about the center of the crossed point; the cross part of the two supporting pieces in each scissor structure is provided with a bolt for fastening the supporting pieces; the adjacent two groups of scissors structures are hinged and fixed through the end parts of the corresponding support sheets; the upper ends of the two supporting pieces in the uppermost scissors structure in the scissors bracket are respectively hinged and fixed with the two ends of the upper cross beam; the lower ends of the two supporting pieces in the shear fork structure positioned at the lowest position in the shear type support are respectively hinged and fixed with the two ends of the lower cross beam; a fixed convex beam used for fixing one end of the flexible electronic paper outside the base is arranged on the side surface of the upper cross beam far away from the base in the horizontal direction; the bottom surface of the convex beam is fixedly connected with one end of the flexible electronic paper extending out of the base.

More preferably, the upper cross beam and the convex beam are independently and oppositely arranged; the side wall of the upper cross beam opposite to the convex beam is embedded and fixed with a first magnet, and the side wall of the convex beam opposite to the upper cross beam is embedded and fixed with a second magnet attracted to the first magnet.

More preferably, the folding leg further comprises a limiting piece; a plurality of limiting holes are formed in the limiting sheet at equal center distances in the vertical direction; the limiting sheet is overlapped with more than two cross points formed by corresponding supporting sheets in at least two groups of scissors structures through at least two limiting holes on the limiting sheet respectively, and is fixedly connected to the folding frame through bolts used for fixing the cross points.

Preferably, the side wall where the non-rectangular opening of the base is located is provided with a wiring hole for a wiring circuit to penetrate into the base and be connected with the flexible electronic paper.

More preferably, the counterweight block is a rechargeable lithium battery power supply.

It should be added that, the description of the display driving module and the related connecting circuit for driving the flexible electronic paper is omitted in the above solution, but for those skilled in the art, the driving solution and the related circuit connecting solution of the flexible electronic paper are the prior art, and the technical solution of the present invention is to use the flexible electronic paper on the display board of the pop-top-up banner type instead of the driving display of the flexible electronic paper, so the above omission is reasonable; in addition, the embodiment of the present invention provides a brief description of the display driving module and the related connecting circuit, which can be referred to in the selection process of specific schemes.

To sum up, the utility model discloses compare in prior art's beneficial effect and be:

(1) the flexible electronic paper is used for referring to spray painting as a content display medium, displayed contents can be changed and replaced, and information which can be covered by the contents is enriched while the content display error is avoided;

(2) by utilizing the characteristic that the flexible electronic paper still displays after being powered off, power supply is not needed in the content display process, and the moving convenience of the electronic display equipment is greatly improved;

(3) through the mutual matching of the folding frame structure and the manual rolling shaft structure, the receiving of the flexible electronic paper and the pulling action on the flexible electronic paper during pulling are reduced, so that the damage of the flexible electronic paper is avoided;

(4) through the matching between the rolling shaft and the base with the hollow structure, the flexible display screen can be accommodated in the base, so that the flexible display screen is well protected against damage;

(5) the bracket can be folded when not in use to reduce the volume, and is convenient to carry and transport;

(6) the support is provided with a balancing weight, so that the anti-toppling function is good;

(7) the balancing weight is a lithium ion power source, and can supply power to the flexible electronic paper and the display driving module thereof under the condition that the power supply condition is not allowed, so that the moving use performance of the bracket is improved;

(8) compared with the traditional roll up banner type supporting structure, the adopted folding frame has better supporting stability, and all supporting parts are matched together in a rotating way, so that the parts are prevented from being lost;

(9) similar to the traditional roll screen, the flexible electronic paper for display can be completely collected in the base through the magnetic separable adsorption design between the upper cross beam and the convex beam, so that the flexible display screen is perfectly protected from damage;

(10) the folding rack is provided with a limiting piece for fixing the opening and closing degree of the folding rack, and the support stability is further improved.

Drawings

FIG. 1 is a rear perspective view of a stretchable electronic display board according to the present invention

FIG. 2 is a front view of the stretchable electronic display board of the present invention

FIG. 3 is a side view of the stretchable electronic display board of the present invention

FIG. 4 is a partially enlarged view of the portion A in FIG. 3

The labels in the figure are: 1-upper beam, 2-support sheet, 3-bolt, 4-flexible electronic paper, 5-limit sheet, 6-limit hole, 7-lower beam, 8-base, 9-roller, 10-convex beam, 11-folding frame, 12-wiring port, 13-balancing weight, 14-lead, 15-strip roller and 16-rectangular opening.

Detailed Description

All features disclosed in this specification may be combined in any combination, except features and/or steps that are mutually exclusive.

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the specific embodiments.

Examples

First, the present embodiment provides a dedicated support for the flexible electronic paper 4; the flexible electronic paper 4 can be, but is not limited to, a flexible electronic ink screen.

A support for flexible electronic paper 4 comprises a base 8 for accommodating the flexible electronic paper 4, a folding frame 11 fixed on the edge of a long edge of the upper surface of the base 8 and used for hanging the flexible electronic paper 4 and being foldable, and a balancing weight 13 fixed on the side surface of the base 8 far away from the folding frame 11. In the above parts, the whole is made of ABS engineering plastics except the balancing weight 13.

Wherein, the base 8 is a hollow cuboid with a cavity inside; a rolling shaft 9 which is parallel to the long edge of the base 8, is centrally positioned in the base 8, is used for rolling and releasing the flexible electronic paper 4 and can rotate relative to the hollow cuboid is arranged in the base 8, specifically, a bearing connection mode can be adopted, a bearing is respectively arranged in the opposite side walls of the base 8, and the rolling shaft 9 is a cylinder body and is fixed in the inner rings of the two bearings in an interference fit manner; one end of the roller 9 extends to the outside of the side wall where the width and the height of the base 8 are located, so that a user can drive the whole roller 9 to rotate by rotating the end part to realize the folding and unfolding of the flexible electronic paper 4 in the base 8; the side wall of the base 8, which is located right below the folding leg 11, is provided with a rectangular opening 16 for the flexible electronic paper 4 to enter and exit. The weight block 13 is a solid block with a large mass, and can be any one of a wood block, an iron block, an aluminum alloy block and the like, and is used for adjusting the gravity center of the whole support to prevent the support from toppling over.

More preferably, the side wall of the end of the roller 9 extending to the outside of the base 8 is provided with anti-slip textures, so as to avoid the situation that the rotating shaft cannot be controlled due to slipping in the rotating process.

More preferably, strip-shaped rollers 15 are arranged above and below the rectangular opening 16, specifically, fixing rods which are arranged in an up-down row and are parallel to the plane of the rectangular opening 16 are horizontally arranged above and below the rectangular opening 16, each fixing rod is fixedly connected with the inner walls of two sides of the rectangular opening 16, and each fixing rod is respectively sleeved with a roller which is in a strip shape and is in running fit with the corresponding fixing rod. So, when flexible electronic paper 4 passed in and out inside base 8 through rectangle opening 16, become rolling friction between flexible electronic paper 4 and the base 8 rather than the sliding friction when not setting up the strip cylinder to the frictional force that flexible electronic paper 4 received has been laughted greatly, and then has reduced flexible electronic paper 4 and has produced the possibility of damaging because of the friction, has prolonged the life of flexible electronic paper 4.

The folding frame 11 comprises a lower cross beam 7, an upper cross beam 1 and a scissor type bracket fixed between the upper cross beam 1 and the lower cross beam 7; the lower cross beam 7 is fixed on the edge of the long edge of the upper surface of the base 8; the scissor type bracket is formed by connecting a plurality of groups of X-shaped scissor fork structures in series up and down; each scissor structure comprises two supporting pieces 2 which are crossed and are symmetrical about the center of the cross point; the cross part of the two supporting pieces 2 in each scissor structure is provided with a bolt 3 for fastening the supporting pieces 2; two adjacent groups of scissors structures are hinged and fixed through the end parts of the corresponding support pieces 2; the upper ends of the two supporting pieces 2 in the uppermost scissors structure in the scissors bracket are respectively hinged and fixed with the two ends of the upper crossbeam 1; the lower ends of the two supporting pieces 2 in the lowest scissors structure in the scissors bracket are respectively hinged and fixed with the two ends of the lower cross beam 7; and a convex beam 10 for fixing one end of the flexible electronic paper 4 outside the base 8 is arranged on the side surface of the upper cross beam 1 far away from the base 8 in the horizontal direction. The supporting pieces 2 forming the scissors structures are made of plastic sheets, holes are formed in the end portions and the middle portions of the two ends of each plastic sheet, the holes in the two ends are used for being connected with the end portions of the corresponding supporting pieces 2 in the adjacent scissors structures to achieve up-down serial connection between the scissors structures, and the holes in the middle portions are used for cross fixed connection between the two supporting pieces 2 in each group of scissors structures to form the scissors structures; it should be noted that, it all adopts articulated the realization to correspond the connection between the tip to backing sheet 2, and specific can choose for use movable riveting, and then adopts the mode of "bolt + nut" to realize detachable fixed connection to correspond the connection between the middle part with backing sheet 2 to with follow-up and spacing fixed connection between the spacing piece 5. Meanwhile, for the sake of beauty, the parts can be painted or baked or electroplated or processed by technical drawing to realize the coloring or texture on the surfaces of the parts

More preferably, the folding leg 11 further comprises a limiting piece 5; a plurality of limiting holes 6 are arranged on the limiting sheet 5 at equal center distance along the vertical direction; the limiting sheet 5 is overlapped with more than two cross points formed by the corresponding supporting sheets 2 in at least two groups of scissors fork structures through at least two limiting holes 6 on the limiting sheet 5, and is fixedly connected on the folding frame 11 through bolts 3 used for fixing the cross points. Typically, two of the limiting holes 6 of the limiting plate 5 are selected to fix the distance between the crossing points formed in the two sets of scissors structures. More preferably, the two groups of scissors structures are two adjacent groups of scissors structures; the specific operation example is that when the folding leg 11 is adjusted to a required height, the bolts 3 near the middle parts of the two sets of scissors structures on the lower beam 7 are firstly removed, the limiting piece 5 is attached to the folding leg 11, then the stretching degree of the scissors-shaped support is adjusted in a small range to enable the two limiting holes 6 on the limiting piece 5 to be opposite to the cross points near the middle parts of the two sets of scissors structures on the lower beam 7, then the bolts 3 are installed again and screwed, and meanwhile, the bolts 3 at the middle parts of the remaining scissors-shaped structures are screwed, so that the scissors-shaped support is completely stable in a stretching state through the supporting function of the limiting piece 5.

Preferably, the side wall of the non-rectangular opening 16 of the base 8 is provided with a wiring hole for a wiring circuit to penetrate into the base 8 and be connected with the flexible electronic paper 4, so that the lead 14 can be led out conveniently to be connected with an external display driving module for display driving of the flexible electronic paper 4.

More preferably, the weight member 13 is a rechargeable lithium battery power source, and if necessary, the power source can be provided without an external power source, so as to ensure the normal operation of the display driving module and the normal display of the flexible electronic paper 4.

The structure is used for the electronic display board adopting the flexible electronic paper 4 as a display interface, and the specific scheme is as follows:

it should be noted that the flexible electronic paper 4 in this embodiment is "electronic paper", and may be, but not limited to, a flexible Eink display screen, and the display of the flexible electronic paper may be color or black and white, and may be taken as needed.

The flexible electronic paper 4 is firstly connected with a lead 14 used for being connected with a display control circuit, then one end of the flexible electronic paper 4 connected with the lead 14 is fixed on the roller 9, and the joint of the lead 14 needs to be reinforced and sealed (such as glue sealing, or more leads 14 cables are fixed on the roller 9 in advance by using a protective tape so as to avoid the bending of the joint of the lead 14 in the processes of rolling and pulling out) and prevent the damage in the subsequent processes of rolling and pulling out; and one end of the flexible electronic paper 4, which is not provided with the lead 14, is fixedly connected with the bottom end surface of the convex beam 10 on the upper beam 1. The bolt 3 for fastening the intersection of the two support sheets 2 in the scissors structure is loosened, the upper cross beam 1 is pushed downwards to fold and contract the folding leg 11 to the lowest position, and then the roller 9 is manually rotated through the end of the roller 9 extending out of the roller 9 to wind the flexible electronic paper 4 on the roller 9 as much as possible. At this moment, the whole electronic display board with the flexible electronic paper 4 is in a storage state, small in size and convenient to carry and transport.

When the folding electronic paper is needed to be used, the upper beam 1 is pulled by hands, so that the folding frame 11 is gradually opened, and in the process that the folding frame 11 is gradually opened, the rotating shaft is rotated in the direction opposite to the rolling direction, so that the flexible electronic paper 4 can extend out of the base 8 along with the opening of the folding frame 11. Because the opening of the folding leg 11 and the rotation of the rotating shaft are carried out synchronously, the flexible electronic paper 4 is not subjected to overlarge tension in the pulling process, so that the problem that the flexible electronic paper 4 is damaged by the tension is avoided, and meanwhile, the flexible electronic paper 4 can be kept in a weak tensioning state, so that the display surface formed by the whole flexible electronic paper 4 is smoother. When the upper cross member 1 of the folding leg 11 is pulled up to a desired height, bolts 3 each for fastening the opposite positions of the two support pieces 2 crossing each other in the corresponding scissors structure are tightened to structurally stabilize the folding leg 11. Preferably, in order to further enhance the stability of the extended folding leg 11, the spacing between two corresponding intersections can be fixed by using the limiting piece 5, so as to thoroughly avoid the problem of the change of the opening and closing degree of the folding leg 11 caused by the looseness of the bolt 3. Finally, the connection with the lead 14 on the flexible electronic paper 4 is connected with the external display driving module through the wiring port 12 arranged on the base 8 in a locking mode, and meanwhile the external display driving module is supplied with power by an external power supply, so that the content of the flexible electronic paper 4 is displayed, the displayed content can be changed and replaced through different display commands output by the display driving module, and therefore the same electronic display board can alternately display various information. When the power supply condition is limited, a lithium battery power supply serving as a balancing weight 13 can be used for supplying power to the display driving module so as to improve the mobility of the whole electronic display board; at the moment, the optimized flexible electronic display screen adopts a flexible electronic ink screen, so that the energy consumption can be effectively controlled, and the longer display endurance time is realized. Meanwhile, after the content is typeset by short-time power supply, the flexible electronic paper 4 can continue to display the content under the condition of being separated from the power supply, so that the trouble of power supply can be greatly eliminated, and the electronic display board has strong moving convenience.

Preferably, the display driving module for the flexible electronic paper 4 can be integrated into the rear portion of the cavity of the base 8, at this time, the wiring port 12 for wiring is replaced by a data interface for data input, and the power supply of the flexible electronic paper 4 and the display driving module can adopt an external power supply or a lithium battery power supply used as the counterweight block 13 more conveniently. The electronic display board obtained by the method has more perfect functions and can be suitable for more outdoor scenes. It should be emphasized that, when the flexible electronic paper is used in outdoor scenes, the whole electronic display board needs to be waterproof, such as the display driving module and the lithium ion power source need to be sealed and waterproof, and the surface of the flexible electronic paper 4 should be coated with a transparent waterproof layer.

Preferably, the upper cross beam 1 and the convex beam 10 are independently and oppositely arranged; the upper crossbeam 1 with inlay on the lateral wall that the protruding roof beam 10 is relative and be fixed with first magnet, protruding roof beam 10 with inlay on the lateral wall that the upper crossbeam 1 is relative and be fixed with the second magnet that attracts in first magnet mutually. The convex beam 10 and the upper cross beam 1 are in magnetic fixed connection through magnets which are correspondingly fixed in the convex beam 10 and the upper cross beam 1 and have mutual attraction, so that the convex beam 10 and the upper cross beam 1 can be separated in the storage process, the flexible electronic paper 4 can be completely collected into the base 8, and more comprehensive damage prevention protection can be achieved; meanwhile, through the limiting effect between the convex beam 10 and the rectangular opening 16, the convex beam 10 is always positioned outside the rectangular opening 16, and the problem that the flexible electronic paper 4 cannot be pulled out after being completely collected into the base 8 is solved.

It should be noted that, although the flexible electronic paper 4 capable of achieving large-scale bending now can display less colors and is mature with only a black-and-white screen, the present embodiment still has a considerable reference scene, such as a pure text display without colors, an electronic nameplate, an electronic temporary guideboard, and the like. Meanwhile, with the development of the technology, the electronic display board described in this embodiment will realize full-color display with the updating of the flexible electronic paper 4 technology, and therefore, the electronic display board described in this embodiment also has great citation potential.

The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims

1. A stretchable electronic display board is characterized in that: the foldable electronic paper folding device comprises flexible electronic paper, a base for containing the flexible electronic paper, and a foldable folding frame which is fixed on the edge of a long edge of the upper surface of the base and used for hanging the flexible electronic paper; a rolling shaft which is used for rolling up the flexible electronic paper and manually realizes rotation is arranged in the base; a rectangular opening for the flexible electronic paper to enter and exit is formed in the side wall of the base; one end of the flexible electronic paper is fixedly connected with the rotating shaft, and the other end of the flexible electronic paper extends out of the base and is fixedly connected with the upper edge of the folding frame.

2. A stretchable electronic display sheet in accordance with claim 1, further comprising: the base is a hollow cuboid with a cavity inside; a roller which is parallel to the long edge of the base, is centrally positioned in the base, is used for rolling and releasing the flexible electronic paper and can rotate relative to the hollow cuboid is arranged in the base; one end of the rolling shaft extends out of the side wall of the base where the width and the height are located; the side wall of the base, which is positioned right below the folding frame, is provided with a rectangular opening for the flexible electronic paper to enter and exit.

3. A stretchable electronic display sheet in accordance with claim 2, further comprising: and anti-skid textures are arranged on the side wall of one end of the rolling shaft extending out of the base.

4. A stretchable electronic display sheet in accordance with claim 2, further comprising: strip-shaped rollers are arranged above and below the rectangular opening.

5. A stretchable electronic display sheet in accordance with claim 2, further comprising: the base is kept away from the facility on the side of folding leg and is had the balancing weight that is used for adjusting the focus.

6. A stretchable electronic display sheet in accordance with claim 1, further comprising: the folding frame comprises a lower cross beam, an upper cross beam and a scissor type bracket fixed between the upper cross beam and the lower cross beam; the lower cross beam is fixed on the edge of the long edge of the upper surface of the base; the scissor type bracket is formed by connecting a plurality of groups of X-shaped scissor fork structures in series up and down; each scissor structure comprises two supporting sheets which are crossed and are symmetrical about the center of the crossed point; the cross part of the two supporting pieces in each scissor structure is provided with a bolt for fastening the supporting pieces; the adjacent two groups of scissors structures are hinged and fixed through the end parts of the corresponding support sheets; the upper ends of the two supporting pieces in the uppermost scissors structure in the scissors bracket are respectively hinged and fixed with the two ends of the upper cross beam; the lower ends of the two supporting pieces in the shear fork structure positioned at the lowest position in the shear type support are respectively hinged and fixed with the two ends of the lower cross beam; a fixed convex beam used for fixing one end of the flexible electronic paper outside the base is arranged on the side surface of the upper cross beam far away from the base in the horizontal direction; the bottom surface of the convex beam is fixedly connected with one end of the flexible electronic paper extending out of the base.

7. A stretchable electronic display sheet in accordance with claim 6, further comprising: the upper cross beam and the convex beam are independently and oppositely arranged; the side wall of the upper cross beam opposite to the convex beam is embedded and fixed with a first magnet, and the side wall of the convex beam opposite to the upper cross beam is embedded and fixed with a second magnet attracted to the first magnet.

8. A stretchable electronic display sheet in accordance with claim 6, further comprising: the folding rack also comprises a limiting piece; a plurality of limiting holes are formed in the limiting sheet at equal center distances in the vertical direction; the limiting sheet is overlapped with more than two cross points formed by corresponding supporting sheets in at least two groups of scissors structures through at least two limiting holes on the limiting sheet respectively, and is fixedly connected to the folding frame through bolts used for fixing the cross points.

9. A stretchable electronic display sheet in accordance with claim 1, further comprising: and a wiring hole for a wiring circuit to penetrate into the base and be connected with the flexible electronic paper is formed in the side wall where the non-rectangular opening of the base is located.

10. A stretchable electronic display sheet in accordance with claim 5, further comprising: the balancing weight is a lithium battery power supply capable of being charged and discharged.