US20190256273A1

US20190256273A1 - Packing Container for Display Panel

Info

Publication number: US20190256273A1
Application number: US15/562,824
Authority: US
Inventors: Shuozhen Liang
Original assignee: HKC Co Ltd; Chongqing HKC Optoelectronics Technology Co Ltd
Current assignee: HKC Co Ltd; Chongqing HKC Optoelectronics Technology Co Ltd
Priority date: 2017-05-26
Filing date: 2017-06-23
Publication date: 2019-08-22
Also published as: CN107117377A; WO2018214212A1

Abstract

A packing container for accommodating display panels is provided. The packing container includes a packing main body, which includes a first receiving recess, a second receiving recess, a first limiting element, and a second limiting element, wherein the first limiting element, the second limiting element, and the first and the second sidewalls of the second receiving recess jointly form a first limiting zone to constrain a circuit board of the display panel.

Description

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of China Application No. 201710386686.6, filed on May 26, 2017, the disclosure of which is incorporated herein in its entirety by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to the field of packing container, especially to the packing container for display panels.

2. Description of the Related Art

A display panel intermediate product delivered by the manufacturer generally includes a display panel main body, a circuit board, and a flexible printed circuit board, wherein the flexible printed circuit board is configured to couple the display panel main body to the circuit board. The intermediate product, the display panel, is usually placed in a packing container during transportation. However, it is very likely that the circuit board in the packing container would suffer violent vibration during transportation which may generate stressing forces and cause damages on the flexible printed circuit board, thereby giving rise to abnormal issues of the display panel main body.

SUMMARY OF THE INVENTION

The present invention provides a packing container for accommodating display panels with decreased movable space, which effectively reduces the forces of the circuit board exerted on the flexible printed circuit board, and thereby the damage rate of the flexible printed circuit board during transportation is decreased.
The present invention provides a display panel packing container including a packing main body. The packing main body includes: a first receiving recess configured to accommodate a display panel main body; a second receiving recess, including a first sidewall and a second sidewall facing to one another, for accommodating a circuit board and a flexible printed circuit board; a first limiting element disposed on the first sidewall; a second limiting element disposed on the second sidewall; wherein the first limiting element, the second limiting element, the first sidewall, and the second sidewall form a first limiting zone to constrain the circuit board.
In a packing container provided by the present invention, a second limiting zone formed between the first limiting element and the second limiting element may be configured to constrain the flexible printed circuit board.
In a packing container provided by the present invention, the first limiting element may be disposed on the edge of the first sidewall closer to the first receiving recess, and the second limiting element may be disposed on the edge of the second sidewall closer to the first receiving recess.
In a packing container provided by the present invention, at least one separator may be disposed on the bottom surface of the second limiting zone. The second limiting zone may be divided by the separator to accommodate a plurality of the flexible printed circuit boards.
In a packing container provided by the present invention, the first limiting element and the first sidewall may be integrally formed, and the second limiting element and the second sidewall may be integrally formed.
In a packing container provided by the present invention, the first limiting element may be detachably disposed on the first sidewall, and the second limiting element may be detachably disposed on the second sidewall.
In a packing container provided by the present invention, the depth of the first receiving recess is less than the depth of the second receiving recess.
In a packing container provided by the present invention, at least one supporter is disposed on the bottom surface of the second receiving recess to support the circuit board.
In a packing container provided by the present invention, one or more first recess portions may be disposed with an interval therebetween on the sidewall of the first receiving recess.
In a packing container provided by the present invention, the second receiving recess may further include a third sidewall, which is on a side of the second receiving recess facing the second limiting zone, and at least one second recess portion is disposed on the third sidewall.
The present invention also provides a display panel packing container, wherein a first limiting element and a second limiting element are respectively disposed on a first and a second sidewalls of a second receiving recess, and the first limiting element, the second limiting element, the first sidewall, and the second sidewall form and constrain a circuit board in a first limiting zone, which effectively minimizes the movable space of the circuit board in the packing container and reduces the stressing force of the circuit board applied on a flexible printed circuit board and reduces the damage rate of the flexible printed circuit board during the transportation of the display panel. Therefore, the production yield of the display panel may be improved.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to illustrate a technical solution according to embodiments of the present invention more clearly, drawings to be used in the description of the embodiments will be briefly set forth in the following. It is obvious that the drawings in the following description are only related to some embodiments of the present invention. Those ordinarily skilled in the art may obtain other embodiments according to these drawings, without any inventive work.

FIG. 1 is a schematic diagram of an embodiment showing a structure of the packing container for accommodating a display panel.

FIG. 2 is an explode view showing the packing container in FIG. 1.

FIG. 3 is a schematic diagram showing a structure of the limiting element of the packing container in FIG. 1.

FIG. 4 is a schematic diagram of an embodiment showing a structure of a packing main body of a packing container for accommodating a display panel.

FIG. 5 is a close-up view of the portion A of the packing main body in FIG. 4.

FIG. 6 is a schematic diagram of an embodiment showing a structure of a packing main body of a packing container for accommodating a display panel.

FIG. 7 is a schematic diagram of an embodiment showing a structure of a packing main body of a packing container for accommodating a display panel.

FIG. 8 is a close-up view of the portion B of the packing main body in FIG. 7.

FIG. 9 is a schematic diagram of an embodiment showing a structure of a limiting element of a packing container for accommodating a display panel.

FIG. 10 is a schematic diagram of an embodiment showing a structure of a packing main body of a packing container for accommodating a display panel.

FIG. 11 is a schematic diagram of an embodiment in accordance with the present invention showing an alternative structure of a packing container for accommodating a display panel.

FIG. 12 is a schematic diagram showing a structure of a second limiting element of the packing container in FIG. 11.

FIG. 13 is a schematic diagram showing a structure of a second sidewall of the packing container in FIG. 11.

FIG. 14 is a schematic diagram of an embodiment in accordance with the present invention showing an alternative structure of a packing container for accommodating a display panel.

FIG. 15 is a schematic diagram of an embodiment in accordance with the present invention showing an alternative structure of a packing container for accommodating a display panel.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

In the following, embodiments in accordance with the present invention will be described clearly and fully accompanying with the drawings. It is apparent that the accompanying drawings in the following description show only some embodiments of the present disclosure. For those skilled in the art, other accompanying drawings may be obtained according to these accompanying drawings without any creative work.
In the description, relative terms such as “lower,” “upper,” “horizontal,” “vertical,” “above,” “below,” “up,” “down,” “top” and “bottom” as well as derivative thereof (e.g., “horizontally,” “downwardly,” “upwardly,” etc.) should be construed to refer to the orientation as then described or as shown in the drawing under discussion. These relative terms are for convenience of description and do not require that the apparatus be constructed or operated in a particular orientation, do not limit the scope of the invention.
Referring to FIG. 1 and FIG. 2, which are the schematic diagram and the corresponding explode view of the embodiment showing a structure of a packing container for accommodating a display panel. In this embodiment, the display panel includes a display panel main body 30, a circuit board 40, and a flexible printed circuit board 50, wherein the flexible printed circuit board 50 is configured to connect the display panel main body 30 to the circuit board 40. In this invention, the chip on film technology can be applied on the flexible printed circuit board 50. The display panel here is still an intermediate product, and, during the transportation, stressing forces thereby might be generated between the circuit board 40 and the flexible printed circuit board 50 and damage the flexible printed circuit board 50, which gives rise to abnormal issues of the display panel. Therefore, the present embodiment provides a packing container for accommodating the display panel to avoid the cause of the damage.
The packing container includes a packing main body 10. The packing main body 10 includes a first receiving recess 111, a second receiving recess 112, and a limiting element 20.
The first receiving recess 111 is configured to accommodate the display panel main body 30. For easier putting in or taking out the display panel main body 30, one or more first recess portions 1111 may be disposed with an interval therebetween on the sidewall of the first receiving recess 111.
The second receiving recess 112 is configured to accommodate the circuit board 40 and the flexible printed circuit board 50. The limiting element 20 is disposed on the second receiving recess 112. The limiting element 20 and the sidewall 1121 of the second receiving recess 112 form a limiting accommodating space. When the display panel is placed into the packing container, the circuit board 40 can be placed within the limiting accommodating space, and so reduces its movable range. The stressing force exerted on the flexible printed circuit board 50 is then greatly minimized and its damage rate is therefore reduced.
In one embodiment, the limiting element 20 includes a first limiting element 21 and a second limiting element 22 as shown in FIG. 1 and FIG. 2. The first limiting element 21 and the second limiting element 22 are disposed on the sidewall 1121 of the second receiving recess 112, and the first limiting element 21 is disposed opposite to the second limiting element 22 to form a limiting accommodating space.
FIG. 3 is a schematic diagram showing the structure of the limiting element of the packing container in FIG. 1. One end of the first limiting element 21 away from the sidewall 1121 includes a bending portion 211 and one end of the second limiting element 22 away from the sidewall 1121 includes a bending portion 221. The bending directions of the bending portions 211 and 221 are toward the circuit board 40 to limit the circuit board 40 to move in a vertical direction, which is the direction from the display panel main body 30 to the circuit board 40 or the direction vertical to the sidewall 1121 of the second receiving recess 112. Therefore, the flexible printed circuit board 50 will not be damaged because the excessive movement of the circuit board 40.
In one embodiment, the first limiting element 21 and the second limiting element 22 are engaged on the sidewall 1121 of the second receiving recess 112.
FIG. 4 is a schematic diagram of this embodiment showing the structure of the packing main body of the packing container. There are at least two first slots 1122 on the sidewall 1121 of the second receiving recess 112 to receive and secure one end of the first limiting element 21 and one end of the second limiting element 22, such that the first limiting element 21 and the second limiting element 22 can be installed on the sidewall 1121 of the second receiving recess 112.
As shown in FIG. 4, there are six first slots 1122 on the sidewall 1121 of the second receiving recess 112. These first slots are disposed with an interval therebetween and form two groups with three slots in each. One group of the first slots 1122 is configured to lock the first limiting element 21 and the other group is used lock the second limiting element 22. Having the first limiting element 21 and the second limiting element 22 to be received and locked in the different slots in each groups, the distance between the first limiting element 21 and the second limiting element 22 can be adjusted to regulate the space of the limiting accommodating space for receiving different sizes of the circuit boards 40.
FIG. 5 gives a close-up view of the circled portion A in FIG. 4 to better illustrate the structure of the first slot 1122 in this embodiment.
In other embodiments, the number and the arrangement of the first slots 1122 are not limited to those in FIG. 4 and FIG. 5. It is understood by one skilled in the art that the number of the first slots 1122 and their disposition are flexibly based on demand without limitation.
FIG. 6 is a schematic diagram showing a structure of a packing main body of a packing container for accommodating a display panel in the following embodiment. In order to more securely dispose the first limiting element 21 and the second limiting element 22 on the second receiving recess 112, there are at least two second slots 1123 on the bottom surface of the second receiving recess 112.
The second slot 1123 is connected to the first slot 1122 and has its shape the same as the bottom of the first limiting element 21 and the bottom of the second limiting element 22 for receiving and locking the first limiting element 21 and the second limiting element 22, such that the first limiting element 21 and the second limiting element 22 can be firmly installed on the second receiving recess 112.
In other embodiments, the second slot 1123 is not necessary connected to the first slot 1122, and the number of the second slots 1123 is not limited to four as in FIG. 6. There is no limitation applied on the number of the second slot 1123 in this invention.
The spacial arrangement of the second slots 1123 is not limited to those shown in FIG. 6 as well. For instance, FIG. 7 is a schematic diagram of an embodiment showing a structure of a packing main body of a packing container for accommodating a display panel, and FIG. 8 is a close-up view of the portion B of the packing main body in FIG. 7. In the packing main body 10 as shown in FIG. 7 and FIG. 8, the total number of the second slots 1123 is six and is divided into two groups. Each group contains three second slots 1123. In each group, three slots are communicating with one another.
In another embodiment, the first limiting element 21 and the second limiting element 22 are installed on the sidewall 1121 of the receiving recess 112 through rotation means as shown in FIG. 9 and FIG. 10.
FIG. 9 is a schematic diagram of the embodiment showing a structure of a limiting element of a packing container for accommodating a display panel, and FIG. 10 is a schematic diagram of the embodiment showing the structure of the packing main body of the packing container for accommodating a display panel. In this embodiment, a rotation ring 211 is disposed on one end of the first limiting element 21 and a rotation ring 221 is disposed on one end of the second limiting element 22. Corresponding rotation axles 1124 are arranged on the sidewall 1121 of the second receiving recess 112. The rotation ring 211 and the rotation ring 221 are coupled to and house the corresponding rotation axles 1124, and so install the first limiting element 21 and the second limiting element 22 on the sidewall 1121 of the second receiving recess 112.
The number of the rotation axle 1124 is two in the packing main body 10 as shown in FIG. 10, and these two axles are respectively corresponding to the first limiting element 21 and the second limiting element 22. In another embodiment, the number of the rotation axle 1124 can be one. In this case, the two rotation axles 1124 in FIG. 10 are connected to one another as one, and the rotation ring 211 of the first limiting element 21 and the rotation ring 221 of the second limiting element 22 are respectively coupled to and house the rotation axles 1124 with an interval therebetween. However, the number of the rotation axle 1124 is not limited in this invention.
In one embodiment, in order to prevent the rotation ring 211 of the first limiting element 21 or the rotation ring 221 of the second limiting element 22 sliding along or moving relatively to the rotation axles 1124, a fixing hole 212 and a fixing element 213 are disposed on the rotation ring 211 and a fixing hole 222 and a fixing element 223 on the rotation ring 221, as shown in FIG. 9.
The fixing element 213 is applied through the fixing hole 212 and pressed against the rotation axle 1124 to fix the position of the first limiting element 21 relatively to the rotation axle 1124. The fixing element 223 is applied through the fixing hole 222 and pressed against the rotation axle 1124 to fix the position of the second limiting element 22 relatively to the rotation axle 1124.
However, the installations of the first limiting element 21 and the second limiting element 22 on the sidewall 1121 of the second receiving recess 112 are not limited to those aforementioned locking and rotation measures. Other approach that can attach and detach the limiting element can also be used. The installation measures of the first limiting element 21 and the second limiting element 22 are not necessary to be detachable and can be firmly fixed, through adhesive measure for instance, on the sidewall 1121 of the second receiving recess 112. The measure for installation is not limited.
In some embodiments, the display panel main body 30 can be a liquid crystal display panel main body, an OLED display panel main body, a QLED display panel main body, a curved display panel main body, or any type of display panel main body. The type of the display panel main body is not limited.
In this embodiment, the limiting element 20 disposed on the second receiving recess 112, such that the limiting element 20 and the sidewall 1121 of the second receiving recess 112 together form a limiting accommodating space to constrain the circuit board 40, which effectively minimizes the movable space of the circuit board 40 in the packing container and reduces the stressing force of the circuit board 40 applied on a flexible printed circuit board 50 and cuts the failure rate of the flexible printed circuit board 50 during the transportation. Therefore, the production yield of the display panel is improved.
FIG. 11 is a schematic diagram of an embodiment showing an alternative structure of a packing container for accommodating a display panel. In some embodiments, the display panel can be a liquid crystal display panel, an OLED display panel, a QLED display panel, a curved display panel, or any type of display panel. The type of the display panel is not limited.
The display panel includes a display panel main body, a circuit board, and a flexible printed circuit board, wherein the display panel main body is connected to the circuit board through the flexible printed circuit board. The chip on film technology can be applied on the flexible printed circuit board. The display panel here is still an intermediate product, and, during the transportation, stressing forces thereby might be generated between the circuit board and the flexible printed circuit board and cause the damage of the flexible printed circuit board, which gives rise to abnormal issues of the display panel. Therefore, the present embodiment provides a packing container for accommodating the display panel to avoid the cause of the damage.
As shown in FIG. 11, the packing container includes a packing main body 100. The packing main body 100 includes a first receiving recess 60, a second receiving recess 70, and a limiting element 80. The limiting element 80 includes a first limiting element 81 and a second limiting element 82. The packing container will be presented accompanied with the corresponding figure.
The first receiving recess 60 is configured to accommodate the display panel main body. In one embodiment, for easier putting in or taking out the display panel main body, one or more first recess portions 110 may be disposed with an interval therebetween on the sidewall of the first receiving recess 60.
There are four first recess portions 110 disposed on two opposite sidewalls of the first receiving recess 60, as shown in FIG. 11. In other embodiments, there may be more or less first recess portions 110, and the number of the first recess portions 110 is not limited. The shapes of the first recess portions 110 are not limited to those shown in FIG. 11 as well.
The second receiving recess 70 includes a first sidewall 71 and a second sidewall 72 facing to one another. A limiting element 80 is disposed on the second receiving recess 70. To be more specifically, a first limiting element 81 is disposed on a first sidewall 71, and a second limiting element 82 is disposed on a second sidewall 72.
In this embodiment, the first limiting element 81 and the second limiting element 82 are arranged opposite to one another, wherein the first limiting element 81 locates on an edge of the first sidewall 71 closer to the first receiving recess 60, and the second limiting element 82 locates on an edge of the second sidewall 72 closer to the first receiving recess 60.
The first limiting element 81, the second limiting element 82, the first sidewall 71, and the second sidewall 72 jointly form a first limiting zone 73, or the limiting element 80 and the sidewalls of the second receiving recess 70 form a limiting accommodating space to constrain the circuit board. Between the first limiting element 81 and the second limiting element 82 is a second limiting zone 74 configured to constrain the flexible printed circuit board. The movable space of the circuit board is then limited, and so reduces the stressing force of the circuit board exerted on the flexible printed circuit board. By this measure, the damage rate of the flexible printed circuit board is in check.
In other embodiments, the first limiting element 81 is not necessary opposite to the second limiting element 82, and the first limiting element 81 and the second limiting element 82 are not necessary disposed on the edges of the first and second sidewalls. These are not limited in this invention.
In this embodiment, the first limiting element 81 is detachably installed on the first sidewall 71, and the second limiting element 82 is detachably installed on the second sidewall 72. To be more specifically as shown in FIG. 12 and FIG. 13, they are the schematic diagram showing a structure of the second limiting element of the packing container in FIG. 11 and the schematic diagram showing a structure of the second sidewall of the packing container in FIG. 11 respectively.
In this embodiment, an insert pin 821 is disposed on the second limiting element 82 and a cavity 721 on the edge of the second sidewall 72, wherein the insert pin 821 is introduced into the cavity 721 to fix the second limiting element 82 on the second sidewall 72.
An insert pin may also be disposed on the first limiting element 81 and a cavity on the first sidewall 71, wherein the structures of the insert pin and the cavity can be the same as the insert pin 821 on the second limiting element 82 and the cavity 721 on the second sidewall 72.
The measure of detachable installation of the first limiting element 81 on the first sidewall 71 or the second limiting element 82 on the second sidewall 72 is not limited to the measure shown in FIG. 12 and FIG. 13. Any approach that can detachably install the first limiting element 81 or the second limiting element 82 on the first sidewall 71 or the second sidewall 72 respectively are applicable in this invention.
In other embodiments, the first limiting element 81 and the first sidewall 71 may be integrally formed, and the second limiting element 82 and the second sidewall 72 may be integrally formed, but the invention is not limited to these.
FIG. 14 is a schematic diagram of an embodiment showing an alternative structure of the packing container for accommodating a display panel. In this embodiment, one or more separators 90 are disposed on the bottom surface of the second limiting zone 74. The separators 90 divide the second limiting zone 74 into several limiting sub-zones, each of which may be configured to accommodate at least one flexible printed circuit board.
In FIG. 14, there are two separators 90, which divide the second limiting zone 74 into three limiting sub-zones. If each limiting sub-zone accommodates one flexible printed circuit board, the packing container in FIG. 14 may accommodate a display panel having three flexible printed circuit boards.
In other embodiments, there may be one or more separators based on the number of the flexible printed circuit boards. The invention is not limited to any specific number.
The separator 90 and the second limiting zone 74 can be integrally formed, or the separator 90 can be detachably installed on the bottom of the second limiting zone 74. For example, several holes are separately arranged on the bottom of the second limiting zone 74 and a pole is arranged on the bottom of the separator 90. By introducing the pole into the hole, the separator is fixed on the bottom of the second limiting zone 74. The measure provides flexibility in number and locations of the separators 90 to meet the practical requirements.
FIG. 15 is a schematic diagram of the embodiment showing an alternative structure of a packing container for accommodating a display panel. Numerous electronic components having various sizes are disposed on the circuit board. In order to avoid damaging them during the transportation of the display panel, one or more supporters 120 are disposed on the bottom surface of the second receiving recess 70.
When there is only one supporter 120, it can be arranged at the center of the bottom of the second receiving recess 70. The supporter 120 pins and holds the circuit board in the center.
In order to make the circuit board more balanced, four supporters 120 are disposed at four corners of the bottom surface of the second receiving recess 70, as shown in FIG. 15. These supporters 120 contact four edges of the circuit board to support it. In another embodiment, the number of the supporter 120 depends on the structure of the circuit board and is adjustable based on practical requirements. The invention is not limited to any specific number.
For easier putting in or taking out the circuit board, \at least one second recess portion 751 may be configured on a third sidewall 75 of the second receiving recess 70 opposite to the second limiting zone 74.
In one embodiment, the depth of the second receiving recess 70 is typically greater than the depth of the first receiving recess 60, because numerous electronic components usually make the circuit board thicker than the display panel main body.
In this embodiment, the first limiting element 81 is disposed on the first sidewall 71 of the second receiving recess 70, and the second limiting element 82 is disposed on the second sidewall 72 of the second receiving recess 70, such that the first limiting element 81, the second limiting element 82, the first sidewall 71, and the second sidewall 72 jointly form the first limiting zone 73 to constraint the circuit board, which effectively minimizes the movable space of the circuit board in the packing container and reduces the stressing force of the circuit board exerted on the flexible printed circuit board, and so cuts the failure rate of the flexible printed circuit board during the transportation of the display panel. Therefore, the production yield of the display panel is improved.
The foregoing descriptions are merely specific implementation manners of the present disclosure, but are not intended to limit the protection scope of the present disclosure. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in the present disclosure shall fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

What is claimed is:

1. A packing container for accommodating a display panel, comprising:

a packing main body comprising:

a first receiving recess configured to accommodate a display panel main body; and

a second receiving recess comprising a first sidewall and a second sidewall facing to one another and configured to accommodate a circuit board and a flexible printed circuit board;

a first limiting element disposed on an edge of the first sidewall closer to the first receiving recess; and

a second limiting element disposed on an edge of the second sidewall closer to the first receiving recess;

wherein the first limiting element, the second limiting element, the first sidewall, and the second sidewall jointly form a first limiting zone to constrain the circuit board, and the first limiting element and the second limiting element are opposite to one another and form a second limiting zone to constrain the flexible printed circuit board, and one or more separators are arranged on a bottom surface of the second limiting zone to divide the second limiting zone for accommodating a plurality of the flexible printed circuit boards.

2. The packing container of claim 1, wherein the first limiting element and the first sidewall are integrally formed, and the second limiting element and the second sidewall are integrally formed.

3. The packing container of claim 1, wherein the first limiting element is detachably installed on the first sidewall, and the second limiting element is detachably installed on the second sidewall.

4. The packing container of claim 3, wherein an insert pin is disposed on each of the first and the second limiting elements, and a cavity is arranged on each of the first and the second sidewalls, wherein the first and the second limiting elements are detachably installed on the first and the second sidewalls respectively through introducing the insert pin to the cavity.

5. The packing container of claim 1, wherein a depth of the second receiving recess is greater than a depth of the first receiving recess.

6. The packing container of claim 1, wherein one or more supporters are disposed on a bottom surface of the second receiving recess to hold the circuit board.

7. The packing container of claim 1, wherein one or more first recess portions are disposed with an interval therebetween on a sidewall of the first receiving recess.

8. The packing container of claim 1, wherein the separator and the bottom surface of the second limiting zone are integrally formed.

9. The packing container of claim 1, wherein the separator is detachably installed on the bottom surface of the second limiting zone.

10. The packing container of claim 9, wherein a plurality of holes are arranged on the bottom surface of the second limiting zone, and a pole is disposed on a bottom of the separator, and the separator is detachably installed on the bottom surface of the second limiting zone through introducing the pole to the holes.

11. A packing container for accommodating a display panel, comprising:

a packing main body, comprising

a second receiving recess, comprising a first sidewall and a second sidewall facing to one another and configured to accommodate a circuit board and a flexible printed circuit board;

a first limiting element disposed on the first sidewall; and

a second limiting element disposed on the second sidewall;

wherein the first limiting element, the second limiting element, the first sidewall, and the second sidewall form a first limiting zone to constrain the circuit board.

12. The packing container of claim 11, wherein the first limiting element and the second limiting element are opposite to one another and form a second limiting zone to constrain the flexible printed circuit board.

13. The packing container of claim 12, wherein the first limiting element is disposed on an edge of the first sidewall closer to the first receiving recess, and the second limiting element is disposed on the edge of the second sidewall closer to the first receiving recess.

14. The packing container of claim 12, wherein one or more separators are disposed on a bottom surface of the second limiting zone, wherein the separators divide the second limiting zone to accommodate a plurality of the flexible printed circuit boards.

15. The packing container of claim 11, wherein the first limiting element and the first sidewall are integrally formed, and the second limiting element and the second sidewall are integrally formed.

16. The packing container of claim 11, wherein the first limiting element is detachably installed on the first sidewall, and the second limiting element is detachably installed on the second sidewall.

17. The packing container of claim 11, wherein a depth of the second receiving recess is greater than a depth of the first receiving recess.

18. The packing container of claim 11, wherein one or more supporters are disposed on a bottom surface of the second receiving recess to hold the circuit board.

19. The packing container of claim 11, wherein one or more first recess portions are disposed with an interval therebetween on a sidewall of the first receiving recess.

20. The packing container of claim 12, wherein the second receiving recess further includes a third sidewall on a side of the second receiving recess opposite to the second limiting zone, and one or more second recess portions are disposed on the third sidewall.