Stress release system for a tool, a package, a curved display panel and method thereof

Abstract

The application provides a jig, a packaging box, a stress release system of a curved display panel and a method thereof. The jig comprises a box body and a first air bag. The box body has a receiving cavity for placing the curved display panel. The receiving cavity comprises opposite first and second walls. The first wall is a plane, and the second wall is a curved surface with the same curvature as the curved display panel. The first air bag is arranged on the first wall. The first air bag has opposite first and second surfaces. The first surface is located on the side close to the first wall. When the first air bag is in an inflated state, the first surface is attached to the first wall, and the second surface is curved into a first curved surface. The bending direction of the first curved surface is the same as the bending direction of the second wall. The jig is used for stress release of the curved display panel. The stress of the curved display panel placed in the receiving cavity can be slowly released, so that the probability of light leakage of the curved display panel is reduced.

Description

Stress relief systems and methods for jigs, packaging boxes, and curved display panels Technical Field

[0001] This application belongs to the field of display technology, and more specifically, relates to a stress relief system and method for a fixture, packaging box, curved display panel. Background Technology

[0002] With people's pursuit of large and ultra-large curved displays, curved display panels are becoming increasingly popular. Currently, curved display panels, such as IPS LCD panels, need to be bent to meet the target curvature requirements after being assembled into flat semi-finished display panels. During the bending process, a lot of stress is generated inside the curved display panel, resulting in light leakage. Summary of the Invention

[0003] The embodiments of this application provide a jig, a packaging box, a stress relief system and method for a curved display panel. The curved display panel is placed in the receiving cavity of the box. The first airbag is inflated, so that the curved display panel is sandwiched between the second wall and the second surface of the airbag, thereby fixing the curved display panel relatively in the receiving cavity. After a period of time, the stress of the curved display panel is slowly released, thereby reducing the probability of light leakage of the curved display panel.

[0004] In a first aspect, this application provides a fixture for stress relief of a curved display panel. The fixture includes a housing and a first airbag. The housing has a receiving cavity for placing the curved display panel. The receiving cavity includes a first wall and a second wall opposite to each other. The first wall is a plane, and the second wall is a curved surface with the same curvature as the curved display panel. The first airbag is disposed on the first wall and has a first surface and a second surface opposite to each other. The first surface is located on the side closer to the first wall. When the first airbag is inflated, the first surface is in contact with the first wall, and the second surface is curved into a first curved surface, and the bending direction of the first curved surface is the same as the bending direction of the second wall.

[0005] In some embodiments, the first wall and the second wall are located on opposite sides of the accommodating cavity along the height direction of the housing, and along the height direction, the second wall bends away from the first wall.

[0006] In some embodiments, when the first airbag is inflated, the second surface has the same curvature as the second wall.

[0007] In some embodiments, the first surface is parallel to the first wall.

[0008] In some embodiments, the second wall is provided with a second airbag, the second airbag having opposing third and fourth surfaces, the third surface being located on the side close to the second wall, the third surface being in contact with the second wall when the second airbag is inflated, and the fourth surface being parallel to the first wall.

[0009] In some embodiments, when the second airbag is inflated, the third surface has the same curvature as the second wall.

[0010] In some embodiments, the box includes a box body and a box lid. The box body has an opening, and the box lid covers the opening to form the receiving cavity. The inner wall of the box lid is the first wall, and the bottom wall of the box body is the second wall. The box body and the box lid are detachably connected.

[0011] In some embodiments, the accommodating cavity further includes two first sidewalls disposed opposite to each other along a first direction and two second sidewalls disposed opposite to each other along a second direction, the first sidewalls and the second sidewalls being connected between the first sidewalls and the second sidewalls, the second direction being perpendicular to the first direction, and a stop block being provided at the corner of the first sidewalls and the second sidewalls.

[0012] The beneficial effects of the fixture provided in this application are as follows: Compared with the prior art, the fixture provided in this application places the curved display panel in the accommodating cavity, inflates the first airbag to make the first airbag in an inflated state, and clamps the curved display panel between the second wall and the second surface of the airbag, thereby fixing the curved display panel relatively in the accommodating cavity. After a period of placement, the stress of the curved display panel is slowly released, thereby reducing the probability of light leakage of the curved display panel.

[0013] Secondly, this application also provides a packaging box, including the fixture described in the first aspect.

[0014] The beneficial effect of the packaging box provided in this application is that: the curved display panel is placed in the accommodating cavity, and the first airbag is inflated, so that the curved display panel is sandwiched between the second wall and the second surface of the airbag, thereby fixing the curved display panel relatively in the accommodating cavity. After a period of time, the stress of the curved display panel is slowly released, thereby reducing the probability of light leakage of the curved display panel.

[0015] Thirdly, this application also provides a stress relief system for a curved display panel, including the fixture described in the first aspect and the curved display panel, wherein the curved display panel is disposed in the fixture.

[0016] The beneficial effect of the stress relief system for the curved display panel provided in this application is that: the curved display panel is placed in the accommodating cavity, and the first airbag is inflated, so that the curved display panel is sandwiched between the second wall and the second surface of the airbag, thereby fixing the curved display panel relatively in the accommodating cavity. After a period of placement, the stress of the curved display panel is slowly released, thereby reducing the probability of light leakage of the curved display panel.

[0017] Fourthly, this application also provides a method for stress relief of a curved display panel, the method being applied to the stress relief system for the curved display panel described in the third aspect, the method comprising:

[0018] The curved display panel is placed inside the housing cavity of the box, with one side surface of the curved display panel adhering to the second wall;

[0019] Inflate the first airbag until it is fully inflated, so that the second surface of the first airbag is in contact with the other side of the curved display panel;

[0020] Store the fixture in an environment with a temperature range of 60℃ to 65℃ for a preset time.

[0021] The beneficial effect of the stress relief method for curved display panels provided in this application is that: the curved display panel is placed in the accommodating cavity, and the first airbag is inflated to make the first airbag in an inflated state, so that the curved display panel is sandwiched between the second wall and the second surface of the airbag, thereby fixing the curved display panel relatively in the accommodating cavity. After a period of placement, the stress of the curved display panel is slowly released, thereby reducing the probability of light leakage of the curved display panel. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 is a structural schematic diagram of the stress relief system for a curved display panel provided in some embodiments of this application;

[0024] Figure 2 is an exploded view of Figure 1;

[0025] Figure 3 is a top view of Figure 1;

[0026] Figure 4 is a cross-sectional view AA of Figure 3;

[0027] Figure 5 is an enlarged view of point I in Figure 4;

[0028] Figure 6 is a schematic diagram of the structure of the box body in some embodiments;

[0029] Figure 7 is an exploded view of the stress relief system for a curved display panel provided in some other embodiments of this application;

[0030] Figure 8 is the assembly drawing of Figure 7;

[0031] Figure 9 is a BB cross-sectional view of Figure 8;

[0032] Figure 10 is an enlarged view of section II in Figure 9;

[0033] Figure 11 is a flowchart of a stress relief method for a curved display panel provided in some embodiments of this application.

[0034] The following are the labeling elements in the figure:

[0035] 10. Box body; 100. Receiving cavity; 101. First wall; 102. Second wall; 103. First side wall; 104. Second side wall; 11. Box body; 12. Box lid; 13. First snap-fit ​​part; 14. Second snap-fit ​​part;

[0036] 20. First airbag; 21. First surface; 22. Second surface;

[0037] 30. Second airbag; 31. Third surface; 32. Fourth surface;

[0038] 40. Stop; 50. Buffer pad;

[0039] 200. Curved display panel. Detailed Implementation

[0040] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0041] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0042] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0044] Example 1

[0045] This application provides a fixture, as shown in Figures 1 to 4, for stress relief of a curved display panel 200. The fixture includes a housing 10 and a first airbag 20. The housing 10 has a receiving cavity 100 for placing the curved display panel 200. The receiving cavity 100 includes a first wall 101 and a second wall 102 opposite to each other. The first wall 101 is a plane, and the second wall 102 is a curved surface with the same curvature as the curved display panel 200. The first airbag 20 is disposed on the first wall 101. The first airbag 20 has a first surface 21 and a second surface 22 opposite to each other. The first surface 21 is located on the side closer to the first wall 101. When the first airbag 20 is in an inflated state, the first surface 21 is in contact with the first wall 101, and the second surface 22 is curved into a first curved surface, and the bending direction of the first curved surface is the same as the bending direction of the second wall 102.

[0046] The curved display panel 200 described above has a flat state and a curved state, wherein the curved state of the curved display panel 200 is obtained by bending the flat state with a preset curvature.

[0047] The second wall 102 mentioned above is a curved surface with the same curvature as the curved display panel 200. This means that the curvature of the second wall 102 is the same as the curvature of the curved display panel 200. The same curvature includes the curvature of the two surfaces being exactly the same, and also includes the curvature of the two surfaces being the same within a range of ±5°.

[0048] The curved display panel 200 is placed in the accommodating cavity 100, with the curvature direction of the curved display panel 200 being the same as that of the second wall 102. In this way, by inflating the first airbag 20, the liquid crystal panel is sandwiched between the second wall 102 and the second surface 22 of the airbag under the action of the abutting force of the second surface 22 of the first airbag 20. The curved display panel 200 is relatively fixed in the accommodating cavity 100. After a period of placement, the stress of the curved display panel 200 is slowly released, thereby reducing the probability of light leakage of the curved display panel 200.

[0049] The bending direction of the first curved surface is the same as that of the second wall 102. For example, as shown in Figure 2, the bending directions of the second wall 102, the curved display panel 200, and the first curved surface are all concave upwards along the height direction of the housing 10 (as shown in the vertical direction of Figure 4). Of course, the bending directions of the second wall 102, the curved display panel 200, and the first curved surface are all convex upwards along the height direction of the housing 10. Of course, the bending direction can also be concave or convex along the length or width direction of the housing 10, which is not specifically limited here.

[0050] The aforementioned accommodating cavity 100 can accommodate one or more curved display panels 200. When the accommodating cavity 100 accommodates multiple curved display panels 200, adjacent curved display panels 200 are separated by buffer pads. In this way, during the handling of fixtures, etc., the buffer pads can buffer and protect the curved display panels 200.

[0051] In some embodiments, as shown in Figures 2, 4 and 5, the first wall 101 and the second wall 102 are located on both sides of the accommodating cavity 100 along the height direction of the housing 10, and along the height direction, the second wall 102 bends away from the first wall 101.

[0052] The above settings maximize the space of the accommodating cavity 100, allowing for the placement of a larger number of curved display panels 200, thereby improving the space utilization of the accommodating cavity 100.

[0053] In some embodiments, as shown in Figures 4 and 5, when the first airbag 20 is in an inflated state, the second surface 22 has the same curvature as the second wall 102.

[0054] The curvature of the second surface 22 and the second wall 102 is the same, including that the curvature of the two surfaces is exactly the same, and that the curvature of the two surfaces is the same within a range of ±5°.

[0055] With the above settings, when the first airbag 20 is in an inflated state, the contact area between the second surface 22 and the curved display panel 200 is increased, so that the second surface 22 fits more closely to one side of the curved display panel 200. This allows the curved display panel 200 to be better sandwiched between the first airbag 20 and the second wall 102, thereby reducing the probability of the curved display panel 200 shaking in the accommodating cavity 100.

[0056] In some embodiments, as shown in Figures 4 and 5, the first surface 21 is parallel to the first wall 101.

[0057] With the above settings, when the first airbag 20 is in an inflated state, the first surface 21 fits more closely to the first wall 101, which helps the second surface 22 fit more closely to the curved display panel 200.

[0058] In some embodiments, the box 10 includes a box body 11 and a box cover 12. The box body 11 has an opening, and the box cover 12 covers the opening to form a receiving cavity 100. The inner wall of the box cover 12 is a first wall 101, and the bottom wall of the box body 11 is a second wall 102. The box body 11 and the box cover 12 are detachably connected.

[0059] With the above settings, when the curved display panel 200 is placed in the accommodating cavity 100, the curved display panel 200 fits against the second wall 102 under its own gravity. This not only helps to maintain the curvature of the curved display panel 200, but also facilitates the design, assembly and maintenance of the fixture.

[0060] It should be noted that the first airbag 20 is disposed on the first wall 101 of the box cover 12, and the second airbag is disposed on the second wall 102 of the box body. The box cover 12 has a channel for inflating and deflating the first airbag 20, which is not shown in the figure. The box body 11 has a channel for inflating and deflating the second airbag 30, which is not shown in the figure.

[0061] In some embodiments, as shown in FIG5, the opening of the housing body 11 is provided with a first latching portion 13 extending circumferentially along the opening, and the housing cover 12 is provided with a second latching portion 14, which latches with the first latching portion 13. This facilitates the assembly and disassembly of the housing body 10, thereby facilitating the placement and removal of the curved display panel 200.

[0062] The first snap-fit ​​portion 13 and the second snap-fit ​​portion 14 mentioned above can be a groove and a protrusion that engage in a snap-fit ​​manner.

[0063] In some embodiments, as shown in Figures 5 and 6, the accommodating cavity 100 further includes two first sidewalls 103 disposed opposite to each other along a first direction (in the direction indicated by arrow X in Figure 6) and two second sidewalls 104 disposed opposite to each other along a second direction (in the direction indicated by arrow Y in Figure 6), the second direction being perpendicular to the first direction, and a stop is provided at the corner of the first sidewalls 103 and the second sidewalls 104.

[0064] The material of the aforementioned stop block is generally the same as that of the buffer pad. The stop block mainly serves to block and buffer the movement of the curved display panel 200, thereby protecting the curved display panel 200.

[0065] With the above settings, when the curved display panel 200 is placed in the receiving cavity 100, the side of the curved display panel 200 abuts against the stop block, restricting the movement of the curved display panel 200 in the first and second directions, so that the curved display panel 200 is relatively fixed in the receiving cavity 100. Moreover, the stop block can protect the curved display panel 200, thereby improving the yield of the curved display panel 200.

[0066] For example, as shown in Figure 6, eight connecting ears are integrally connected at the corner of the receiving cavity 100, that is, at the connection between the first wall 101 and the second wall 102. The eight connecting ears divide the receiving cavity 100 into two sub-cavities. One sub-cavity holds the curved LCD panel, and the other sub-cavity is designed to facilitate the placement and removal of the curved display panel 200. Eight stops are set on the side walls of the eight connecting ears. In this way, the curved display panel 200 is not only relatively fixed in the receiving cavity 100, but also facilitates the placement and removal of the curved display panel 200.

[0067] Example 2

[0068] The main difference between the fixture in Embodiment 2 and the fixture in Embodiment 1 is that the fixture further includes a second airbag 30, which is disposed on the second wall 102 of the accommodating cavity 100. In this way, the fixture can not only store and place the curved display panel 200 in a curved state, but also place the curved display panel 200 in a flat state.

[0069] As shown in Figures 7 to 10, the second wall 102 is provided with a second airbag 30. The second airbag 30 has a third surface 31 and a fourth surface 32 opposite to each other. The third surface 31 is located on the side close to the second wall 102. When the second airbag 30 is in an inflated state, the third surface 31 is in contact with the second wall 102, and the fourth surface 32 is parallel to the first wall 101.

[0070] With the above configuration, when the second airbag 30 is inflated, if the fourth surface 32 is parallel to the first wall 101, the accommodating cavity 100 of the fixture can hold the curved display panel 200 or the flat display panel in a planar state. When the curved display panel 200 is placed in the accommodating cavity 100, the second airbag 30 continuously applies a force to the curved display panel 200 through the fourth surface 32 when it is inflated. The second airbag 30 can buffer and protect the curved display panel 200.

[0071] In some embodiments, as shown in Figures 9 and 10, when the second airbag 30 is in an inflated state, the third surface 31 has the same curvature as the second wall 102.

[0072] The curvature of the third surface 31 is the same as that of the second wall 102, including the fact that the curvature of the two surfaces is exactly the same, and also the fact that the curvature of the two surfaces is the same within a range of ±5°.

[0073] With the above settings, when the second airbag 30 is inflated, the third surface 31 and the second wall 102 can fit completely together, which helps to maintain the accuracy of the curvature of the curved display panel 200.

[0074] For example, as shown in Figures 9 and 10, when the second airbag 30 is inflated, the third surface 31 has the same curvature as the second wall 102, and the fourth surface 32 is parallel to the first wall 101. Thus, the accommodating cavity 100 is a rectangular shape, allowing for the placement of either a curved display panel 200 or a flat display panel in a planar state. In other words, this fixture can also serve as a packaging box for a flat display panel, thereby improving its versatility, cost-effectiveness, and ultimately facilitating market promotion.

[0075] The fixture in Example 2 has the same structure as the fixture in Example 1, and will not be described again here.

[0076] Example 3

[0077] As shown in Figures 2 and 4, this application also provides a packaging box, including a jig.

[0078] The structure of the fixture in the packaging box of this embodiment can be the same as that of the fixture in Embodiment 1 above, as shown in Figure 2; the structure of the fixture in the packaging box of this embodiment can also be the same as that of the fixture in Embodiment 2, as shown in Figure 4, and will not be described again here.

[0079] It should be noted that the aforementioned fixture can not only be used for stress relief of curved display panels, but can also be used alone as a packaging box for curved display panels 200 or flat display panels. For example, the curved display panel 200 can be placed in the receiving cavity 100 of the fixture's box 10. In this way, during the transportation of the curved display panel 200, the first airbag 20 or the second airbag 30 can not only maintain the curvature accuracy of the curved display panel 200, but also cushion and protect the curved display panel 200 when the fixture shakes under external force.

[0080] Example 4

[0081] This application also provides a stress relief system for a curved display panel 200, as shown in Figures 2 and 7. The stress relief system for the curved display panel 200 includes a fixture and a curved display panel 200, with the curved display panel 200 disposed in the fixture.

[0082] The fixture with the curved display panel 200 can be placed in an oven or baking oven, and a preset time can be set to allow the stress in the curved display panel 200 to be released slowly. Alternatively, the fixture with the curved display panel 200 can be placed in a room temperature environment for a period of time to allow the stress in the curved display panel 200 to be released slowly. No specific limitation is made here.

[0083] The stress relief system for the curved display panel 200 provided in this application places the curved display panel 200 in the accommodating cavity 100, inflates the first airbag 20 to make the first airbag 20 in an inflated state, so that the curved display panel 200 is sandwiched between the second wall 102 and the second surface 22 of the airbag, and the curved display panel 200 is relatively fixed in the accommodating cavity 100. After a period of placement, the stress of the curved display panel 200 is slowly released, thereby reducing the probability of light leakage of the curved display panel 200.

[0084] The fixture in Example 4 has the same structure as the fixture in Example 1 or Example 2, and will not be described again here.

[0085] Example 5

[0086] This application also provides a method for stress relief of a curved display panel, as shown in Figure 11. The above method is applied to a stress relief system for a curved display panel, and the method includes:

[0087] Step S100: Place the curved display panel inside the housing cavity of the cabinet, with one side surface of the curved display panel in contact with the second wall;

[0088] Step S200: Inflate the first airbag until it is inflated, so that the second surface of the first airbag is in contact with the other side of the curved display panel;

[0089] Step S300: Place the fixture in an environment with a temperature range of 60℃~65℃ and store it for a preset time.

[0090] The aforementioned environment is typically found in an oven or drying oven. The stress relief method for the curved display panel provided in this application involves placing the curved display panel in a receiving cavity, inflating the first airbag to inflate it, thus sandwiching the curved display panel between the second wall and the second surface of the airbag, thereby fixing the curved display panel relatively within the receiving cavity. By storing or placing the fixture in an environment with a temperature range of 60℃ to 65℃ for a preset time, the stress in the curved display panel is slowly released, thereby reducing the probability of light leakage in the curved display panel.

[0091] In addition to placing the fixture with the curved display panel in an oven or baking oven to allow the stress in the curved display panel to be released slowly, the fixture with the curved display panel can also be placed in a room temperature environment for a period of time to allow the stress in the curved display panel to be released slowly. No specific limitation is made here.

[0092] The stress relief system for the curved display panel in Embodiment 4 has the same structure as the fixture in Embodiment 3, and will not be described again here.

[0093] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fixture for stress relief of curved display panels, characterized in that, The fixture includes: a housing (10) having a receiving cavity (100) for placing the curved display panel (200), the receiving cavity (100) including a first wall (101) and a second wall (102) opposite each other, the first wall (101) being a plane and the second wall (102) being a curved surface having the same curvature as the curved display panel (200); a first airbag (20) disposed on the first wall (101), the first airbag (20) having a first surface (21) and a second surface (22) opposite each other, the first surface (21) being located on the side close to the first wall (101), when the first airbag (20) is in an inflated state, the first surface (21) being in contact with the first wall (101), the second surface (22) being curved into a first curved surface, and the bending direction of the first curved surface being the same as the bending direction of the second wall (102).

2. The fixture according to claim 1, characterized in that, The first wall (101) and the second wall (102) are located on both sides of the accommodating cavity (100) along the height direction of the box (10), and along the height direction, the second wall (102) bends away from the first wall (101).

3. The fixture according to claim 2, characterized in that, When the first airbag (20) is in an inflated state, the curvature of the second surface (22) is the same as that of the second wall (102).

4. The fixture according to claim 2, characterized in that, The first surface (21) is parallel to the first wall (101).

5. The jig according to any one of claims 1 to 4, characterized in that, The second wall (102) is provided with a second airbag (30), the second airbag (30) has a third surface (31) and a fourth surface (32) opposite to each other, the third surface (31) is located on the side close to the second wall (102), when the second airbag (30) is in an inflated state, the third surface (31) is in contact with the second wall (102), and the fourth surface (32) is parallel to the first wall (101).

6. The fixture according to claim 5, characterized in that, When the second airbag (30) is inflated, the third surface (31) has the same curvature as the second wall (102).

7. The jig according to any one of claims 1 to 4, characterized in that, The accommodating cavity (100) further includes two first sidewalls (103) arranged opposite to each other along a first direction and two second sidewalls (104) arranged opposite to each other along a second direction. The first sidewalls (103) and the second sidewalls (104) are connected between the first wall (101) and the second wall (102). The second direction is perpendicular to the first direction. A stop (40) is provided at the corner of the first sidewall (103) and the second sidewall (104).

8. A packaging box, characterized in that, include: The jig as described in any one of claims 1 to 7.

9. A stress relief system for a curved display panel, characterized in that, include: The jig as described in any one of claims 1 to 7; A curved display panel is disposed in the fixture.

10. A method for stress relief of a curved display panel, applied to the stress relief system for a curved display panel as described in claim 9, characterized in that, The method includes: placing a curved display panel in the receiving cavity of the housing, with one side surface of the curved display panel abutting against the second wall; inflating the first airbag until it is inflated, so that the second surface of the first airbag abuts against the other side of the curved display panel; and storing the fixture in an environment with a temperature range of 60℃ to 65℃ for a preset time.

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