WO2024094134A1 - 支撑件、显示模组及电子设备 - Google Patents

支撑件、显示模组及电子设备 Download PDF

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Publication number
WO2024094134A1
WO2024094134A1 PCT/CN2023/129391 CN2023129391W WO2024094134A1 WO 2024094134 A1 WO2024094134 A1 WO 2024094134A1 CN 2023129391 W CN2023129391 W CN 2023129391W WO 2024094134 A1 WO2024094134 A1 WO 2024094134A1
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WIPO (PCT)
Prior art keywords
holes
hole
arc
area
support member
Prior art date
Application number
PCT/CN2023/129391
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English (en)
French (fr)
Inventor
钱陈杨
王艺锰
姚熙临
张闽
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2024094134A1 publication Critical patent/WO2024094134A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Definitions

  • the present application relates to the technical field of electronic equipment, and in particular to a support member, a display module and an electronic device.
  • the support in the display module is a key component of the entire display module.
  • many through holes are usually set on the support.
  • the position distribution of the through holes is closely related to the bending radius, rebound force, etc., and the setting of the through holes is closely related to the light and shadow creases.
  • the commonly used support members usually include three parts, the first arc area, the adhesive area, and the second arc area.
  • the first arc area and the second arc area are provided with through holes, and the support member is bonded to the shaft by providing adhesive in the adhesive area.
  • the problem of light and shadow creases in the display module after folding is more significant.
  • the rebound force of the first arc area is relatively large, resulting in a relatively large rebound force of the display module.
  • the present application provides a support member, a display module and an electronic device, which are intended to reduce the rebound force generated by the display module after folding and to improve the problem of light and shadow creases in the display module.
  • the first aspect of the embodiments of the present application provides a support member for use in a foldable electronic device.
  • the support member includes a bending zone and a plane zone.
  • the bending zone includes a first arc zone, a transition zone, and a second arc zone connected in sequence, the second arc zone is connected to the plane zone at a side away from the first arc zone, and the transition zone is a support portion of the rotating shaft in the electronic device and can move relative to the support portion.
  • the first arc zone is provided with a plurality of first through holes
  • the transition zone is provided with a plurality of second through holes
  • the second arc zone is provided with a plurality of third through holes.
  • the direction from the first arc zone to the second arc zone is the width direction, and the direction perpendicular to the width direction is the length direction.
  • the lengths of the plurality of first through holes gradually decrease along the width direction.
  • the lengths of some of the second through holes in the plurality of second through holes gradually decrease along the width direction, and the lengths of the other portion of the second through holes are the same along the width direction.
  • the lengths of the plurality of third through holes are the same along the width direction.
  • the material volume of the first arc-shaped area is reduced, so that the rebound force of the first arc-shaped area is reduced, and it can be bent more easily, and the length of the first arc-shaped area is gradually reduced along the width direction, so that the strength of the first arc-shaped area can be improved as it approaches the second arc-shaped area.
  • a plurality of second through holes are set in the transition area between the first arc-shaped area and the second arc-shaped area, so that the entire bending area has a through hole design, and the tensile stress and compressive stress generated in the bending area are roughly the same.
  • the support part can improve the light and shadow crease problem on the display module without applying force to the bending area.
  • the plurality of first through holes are divided into a plurality of columns along a length direction, and the first through holes in two adjacent columns are staggered along a width direction.
  • the first through holes are staggered along the width direction so that the overall arrangement of the first arc-shaped area is more uniform, so that when the support member is bent, the rebound force generated by the first arc-shaped area is also more uniform, which is more conducive to the bending of the first arc-shaped area.
  • the plurality of second through holes are divided into a plurality of columns along the length direction, and a portion of the length gradually increases.
  • the reduced second through holes are arranged in a staggered manner along the width direction.
  • Another portion of second through holes with the same length are arranged side by side along the width direction.
  • some of the second through holes are staggered along the width direction, so that the transition zone near the first arc zone generates a smaller rebound force, and the transition zone near the first arc zone can be bent more easily.
  • another part of the second through holes is arranged side by side along the width direction, so that the bending zone away from the first arc zone has a higher strength than the bending zone near the first arc zone.
  • the plurality of third through holes are divided into a plurality of rows along the width direction, and the third through holes in two adjacent rows are staggered.
  • two adjacent rows of third through holes are staggered in the width direction, and the arrangement of the third through holes is more regular than that of the first through holes.
  • the third through holes in each row are arranged at equal distances, and two second through holes in the previous row just correspond to one third through hole in the next row.
  • This arrangement makes the strength of the second arc-shaped area greater than that of the first arc-shaped area.
  • the second arc-shaped area can enhance the support force for the display panel in the display module.
  • the hole widths of the first through hole, the second through hole, and the third through hole are W, and 0.01 mm ⁇ W ⁇ 50 mm.
  • the hole width W of the first through hole, the second through hole and the third through hole is set in the range of 0.01mm to 50mm, and combined with the arrangement of the first through hole, the second through hole and the third through hole, the mass of the first arc-shaped area in the support member can be reduced, so that the first arc-shaped area can generate a smaller rebound force.
  • the second arc-shaped area can retain more material than the first arc-shaped area to maintain its own strength, so that it can support the display panel in the display module.
  • the transition zone is set between the first arc-shaped area and the second arc-shaped area, so that it gradually transitions from generating a smaller rebound force to a structure with a certain strength, thereby better mitering the first arc-shaped area and the second arc-shaped area to avoid possible breakage when the first arc-shaped area directly connects to the second arc-shaped area.
  • the hole spacing between any two adjacent first through holes, two second through holes, two third through holes, the first through hole and the second through hole, and the second through hole and the third through hole is D1, 0.01mm ⁇ D1 ⁇ 50mm.
  • any two adjacent first through holes, any two adjacent second through holes, and any two adjacent third through holes is set in the range of 0.01mm to 50mm.
  • setting the hole spacing D1 between the two adjacent first through holes, the two adjacent second through holes, or the first through hole and the second through hole to be smaller can reduce the rebound force generated by the first arc zone and the partial transition zone.
  • setting the hole spacing D1 between the two adjacent second through holes, the two adjacent third through holes, or the second through hole and the third through hole to be larger can improve the strength of the partial bending zone and the second arc zone.
  • the hole spacing between two adjacent first through holes, two adjacent second through holes, and two adjacent third through holes is D2, and 0.01 mm ⁇ D2 ⁇ 10 mm.
  • the hole spacing D2 between the two first through holes, the two second through holes and the two third through holes is set in the range of 0.01mm to 10mm.
  • the hole spacing D2 can be set as needed so that the support member can reduce the generation of rebound force in the first arc zone and the partial transition zone, and can improve the structural strength in the second arc zone and the partial transition zone to support the display panel in the display module.
  • the first through hole, the second through hole and the third through hole have a hole length of L, and 0.01 mm ⁇ L ⁇ 10 mm.
  • the hole length L of the first through hole, the second through hole and the third through hole is set in the range of 0.01mm to 10mm, and the hole spacing L can be set as needed so that the support member can reduce the generation of rebound force in the first arc zone and the partial transition zone, and can improve the structural strength in the second arc zone and the partial transition zone to support the display panel in the display module.
  • the first through hole, the second through hole and the third through hole are circular, elliptical, racetrack-shaped or rectangular.
  • the first through hole, the second through hole and the third through hole are set to be circular, elliptical, track-shaped or rectangular.
  • the shapes of the first through hole, the second through hole and the third through hole can be replaced in combination with the forces applied to the display module in the bent and unfolded states to reduce the forces applied to the support member.
  • the second aspect of the embodiment of the present application provides a display module for a foldable electronic device, comprising a display panel, a protective layer, and a support member as in any implementation of the first aspect.
  • the support member, the display panel, and the protective layer are stacked, the support member is arranged on a first surface of the display panel, and the protective layer is arranged on a second surface of the display panel away from the first surface.
  • This display module uses a support member with multiple second through holes in the transition area, which can reduce the rebound force of the display panel and improve the problem of light and shadow creases on the display panel. It can protect the display panel and prevent the display panel from being scratched.
  • the protective layer can also be used as a surface for human-computer interaction in the display module, so that users can directly operate on the protective layer.
  • a third aspect of the embodiments of the present application provides an electronic device, comprising two housings, a rotating shaft, and a display module as in any implementation of the second aspect.
  • the two housings are rotatably connected, and the two housings are fixedly connected on opposite sides of the rotating shaft.
  • the display module comprises two planar areas connected to the bending area, the two planar areas are symmetrically arranged on both sides of the bending area, and each planar area is connected to a housing.
  • This electronic device controls the rotation by a rotating shaft, so that the two shells can have different rotation angles.
  • the two shells rotate, which can drive the display module to bend.
  • the display module uses the support member in the above implementation method to reduce the rebound force of the display module after the two shells are bent, so as to facilitate the bending of the display module.
  • the light and shadow folds of the display module can be improved, making the bending of the display module smoother.
  • the rotating shaft includes a fixing member, a connecting member and a rotating arm.
  • the fixing member is rotatably connected to the connecting member
  • the connecting member is fixedly connected to the rotating arm
  • the rotating arm is fixedly connected to the housing.
  • the housing connected to the rotating arm can be rotated by the rotation connection of the fixing member and the connecting member, so that the two housings can be folded.
  • the fixing member includes an arc block
  • the connecting member includes a supporting portion and a connecting portion connected to the supporting portion
  • the connecting portion is provided with an arc groove.
  • the arc block is slidably arranged in the arc groove, and the connecting member is fixedly connected to the rotating arm through the supporting portion.
  • the rotating shaft can achieve a rotational connection between the rotating arm and the housing through the sliding cooperation of the arc-shaped block and the arc-shaped groove, so as to facilitate folding of the electronic device.
  • FIG1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application, in which two shells are in a folded state.
  • FIG. 2 shows the electronic device shown in FIG. 1 with two housings in an unfolded state, and the surfaces of the two housings are located in the same plane.
  • FIG. 3 is an exploded view of the electronic device shown in FIG. 2 .
  • FIG. 4 is a partial cross-sectional structural schematic diagram of the electronic device shown in FIG. 1 in a folded state, with the display module also in a folded state.
  • FIG. 5 is a schematic structural diagram of a display module provided in an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a partial top view of the support member in the display module shown in FIG. 5 .
  • FIG. 7 is a partial enlarged schematic diagram corresponding to VII in the support member shown in FIG. 6 .
  • FIG. 8 shows the light and shadow creases displayed when the supporting member in the display module is folded without a second through hole in the transition zone.
  • FIG. 9 shows light and shadow creases displayed when a support member of a display module provided by an embodiment of the present application is provided with a second through hole in a transition area and is folded.
  • FIG. 10 is a schematic diagram showing the local stress on the bending area of the support member when the module is in a folded state.
  • FIG. 11 is a schematic diagram of the structure of a rotating shaft provided in an embodiment of the present application, in which the rotating arm is in a folded state.
  • FIG. 12 is the rotating shaft shown in FIG. 11 , with its rotating arm in an unfolded state.
  • first”, second, etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as “first”, “second”, etc. may explicitly or implicitly include one or more of the features.
  • plural means two or more. Positional terms such as “upper”, “lower”, “left”, and “right” are relative to the schematic placement of components in the accompanying drawings. It should be understood that these directional terms are relative concepts, which are used for description and clarification relative to the drawings, and may change accordingly according to the change of the orientation of the components in the drawings.
  • connection should be understood in a broad sense, for example, “connection” can be fixed connection, detachable connection, or integrated; can be directly connected or indirectly connected through an intermediate medium.
  • connection can be fixed connection, detachable connection, or integrated; can be directly connected or indirectly connected through an intermediate medium.
  • connection can be fixed connection, detachable connection, or integrated; can be directly connected or indirectly connected through an intermediate medium.
  • connection can be fixed connection, detachable connection, or integrated; can be directly connected or indirectly connected through an intermediate medium.
  • connection can be fixed connection, detachable connection, or integrated; can be directly connected or indirectly connected through an intermediate medium.
  • connection can be fixed connection, detachable connection, or integrated; can be directly connected or indirectly connected through an intermediate medium.
  • connection can be fixed connection, detachable connection, or integrated; can be directly connected or indirectly connected through an intermediate medium.
  • and/or used herein includes any and all combinations of one or more of the relevant listed items.
  • the application scenario is first introduced.
  • FIG1 shows a schematic structural diagram of an electronic device 001 provided in an embodiment of the present application, in which two shells 400 are in a folded state.
  • the electronic device 001 provided in the embodiment of the present application is a foldable electronic device.
  • the display module 100 provided in the embodiment of the present application can be applied in the foldable electronic device 001.
  • the foldable device includes two parts that can rotate relative to each other, and the final form of the electronic device 001 can be changed by rotating and folding the two parts.
  • the user can fold or unfold the electronic device 001 to meet different needs. For example, when the user needs to carry the electronic device 001 with him, the electronic device 001 can be folded to reduce the space occupied by the electronic device 001, thereby improving portability.
  • the electronic device 001 can be unfolded to show a larger display area and operation area for the user to watch and interact, thereby improving the convenience of use.
  • the electronic device 001 can be divided into multiple types according to the type, for example, the electronic device 001 can be a mobile phone, a tablet computer, a laptop computer, a wearable device, an e-book, etc. As an example, the electronic device 001 in the embodiment of the present application will be described by taking a mobile phone as an example.
  • Fig. 2 shows that the two housings 400 of the electronic device 001 shown in Fig. 1 are in an unfolded state, and the surfaces of the two housings 400 are located in the same plane.
  • Fig. 3 shows an exploded view of the electronic device 001 shown in Fig. 2 .
  • the electronic device 001 includes a display module 100, two housings 400 and a rotating shaft 500.
  • the two housings 400 are rotatably connected, and the two housings 400 are fixedly connected on opposite sides of the rotating shaft 500. Under the action of the rotating shaft 500, the two housings 400 can rotate, move, and so on relative to each other.
  • the display module 100 is connected to the housing 400 and is arranged on the surface of the housing 400. When the electronic device 001 is unfolded, the surfaces of the two housings 400 on which the display modules are arranged are roughly flush, and the display module 100 is laid flat on the surface of the housing 400 to provide a larger display area and operating area, thereby improving the use performance.
  • the display module 100 can be wrapped between the two shells 400 and the hinge 500, which can protect the display module 100 and prevent the display module 100 from being damaged by external forces, and can also improve the safety performance of the electronic device 001.
  • the display module 100 moves synchronously with the two shells 400, when the two shells 400 move 180° relative to each other from unfolding to folding, the corresponding parts of the display module 100 and the two shells 400 also move 180° relative to each other.
  • the display module 100 corresponding to the movement of the shell 400, there is a bent part, and an arc-shaped protrusion will appear on the bent part.
  • the protrusion of the display module 100 will form obvious light and shadow creases under repeated bending.
  • the display module 100 since the display module 100 is driven by the shell 400 to bend, there will be a rebound force at the bend inside the display module 100, which will cause a small gap between the two shells 400 and prevent them from completely overlapping.
  • FIG. 4 is a partial cross-sectional structural schematic diagram showing that the electronic device 001 shown in FIG. 1 is in a folded state, and the display module 100 is also in a folded state.
  • the housing 400 when the housing 400 is operated to be folded from the unfolded state, the housing 400 also drives the display module 100 to be folded.
  • Fig. 5 is a schematic diagram showing the structure of a display module 100 provided in an embodiment of the present application.
  • Fig. 6 is a schematic diagram showing the top view of a support member 20 in the display module 100 shown in Fig. 5.
  • Fig. 7 is a schematic diagram showing a partial enlargement of the support member 20 shown in Fig. 6.
  • an embodiment of the present application provides a display module 100.
  • the display module 100 can be applied to the electronic device 001 in the above embodiment.
  • the display module 100 includes a display panel 10, a support member 20 and a protective layer 30.
  • the display panel 10, the support member 20 and the protective layer 30 are stacked, the support member 20 is arranged on a first surface of the display panel 10, and the protective layer 30 is arranged on a second surface of the display panel 10 away from the first surface.
  • the support member 20 is arranged on the lower surface of the display panel 10, and the protective layer 30 is arranged on the upper surface of the display panel 10.
  • the support member 20 is mainly used to support the display panel 10 stacked therewith, so that the display panel 10 has a certain strength, which is convenient for users to interact with each other.
  • the display module 100 can be an OLED (Organic Light-Emitting Diode) display screen, or it can be a display screen of the type of LCD (Liquid Crystal Display), Micro-LED (Micro Light-Emitting Diode). It can also be a display screen such as QLED (Quantum Dot Light Emitting Diodes). As an example, in the embodiment of the present application, OLED will be used as the display module 100 for explanation.
  • OLED Organic Light-Emitting Diode
  • the display panel 10 can be mainly used to display images, and can be used as an interactive interface to indicate a series of interactive actions, such as click, slide, and press touch operations.
  • the display panel 10 may include an organic electroluminescent layer and a pixel driving circuit.
  • the support member 20 includes a bending area 21 and a plane area 22.
  • the bending area 21 is connected to the plane area 22.
  • the display panel 10 is in contact with the bending area 21 and the plane area 22.
  • the display panel 10 and the support member 20 can be bonded and fixed by adhesive 35.
  • the display panel 10 and the support member 20 can be bonded by OCA (Optically Clear Adhesive) optical adhesive.
  • the bending area 21 corresponds to the bending part of the display panel 10.
  • the bending area 21 is the area where the support member 20 can be bent when the display module 100 is folded.
  • the support member 20 is unfolded accordingly, and the bending area 21 is converted from the bent state to the flat state.
  • the flat area 22 is the area of the support member 20 other than the bending when the display module 100 is folded.
  • the support member 20 is unfolded accordingly, and the flat area 22 still maintains the original state.
  • the support member 20 is a symmetrical structure.
  • the support member 20 is symmetrically arranged with the center line O of the bending area 21 as the symmetry axis. It can be understood that the support member 20 includes two plane areas 22, and the two plane areas 22 are respectively connected to the opposite sides of the bending area 21.
  • the overall profile formed by the bending area 21 and the two plane areas 22 is roughly the same as the display panel 10, so as to fully support various positions of the display panel 10, thereby improving the strength of the display panel 10.
  • the bending zone 21 included in the support member 20 includes a first arc zone 211, a transition zone 212 and a second arc zone 213 connected in sequence.
  • the second arc zone 213 is connected to the plane zone 22 at the side away from the first arc zone 211.
  • the transition zone 212 corresponds to the support portion 62 of the rotating shaft 500 in the electronic device 001, and the transition zone 212 can move relative to the support portion 62.
  • the bending zone 21 is symmetrically arranged with the center line O of the first arc zone 211 as the symmetry axis. That is, the opposite sides of the bending zone 21 are respectively connected to the transition zone 212, each transition zone 212 is connected to a second arc zone 213 at the side away from the first arc zone 211, and each second arc zone 213 is connected to a plane zone 22 at the side away from the first arc zone 211.
  • the direction from the first arc-shaped area 211 to the second arc-shaped area 213 is taken as the width direction X
  • the direction perpendicular to the width direction X and parallel to the center line O of the bending area 21 is taken as the length direction Y.
  • the first arc-shaped area 211 is provided with a plurality of first through holes 2111
  • the transition area 212 is provided with a plurality of second through holes 2121
  • the second arc-shaped area 213 is provided with a plurality of third through holes 2131.
  • the lengths of the plurality of first through holes 2111 gradually decrease along the width direction X.
  • the lengths of some of the second through holes 2121 in the plurality of second through holes 2121 gradually decrease along the width direction X, and the lengths of the other second through holes 2121 are the same along the width direction X.
  • the lengths of the plurality of third through holes 2131 are the same along the width direction.
  • the plurality of first through holes 2111 are divided into a plurality of columns along the length direction Y, and the first through holes 2111 in two adjacent columns are staggered along the width direction X.
  • the description will be made based on the area from the center line O of the first arc-shaped area 211 to the side of the transition area 212 close to the first arc-shaped area 211.
  • the plurality of first through holes 2111 are divided into a plurality of columns, and the plurality of first through holes 2111 in each column are arranged approximately equidistantly.
  • the plurality of first through holes 2111 in each column are staggered with the plurality of first through holes 2111 in the adjacent column.
  • the staggered arrangement is based on the center line O close to the first arc-shaped area 211 as the first row, and there is a gap between the first through holes 2111 in the first example.
  • the first through hole 2111 is arranged at the position of the second row corresponding to the gap. That is, the area between two adjacent first through holes 2111 in the first row corresponds to the first through hole 2111 in the second example.
  • the two transition areas 212 are symmetrically arranged along the center line O of the first arc-shaped area 211, the arrangement method of the multiple first through holes 2111 in the area from the center line O of the first arc-shaped area 211 to the side wall of the other transition area 212 close to the other first arc-shaped area 211 is the same as the above content.
  • the multiple first through holes 2111 are divided into several columns, and the first through holes 2111 in each column are staggered with the first through holes 2111 in an adjacent column, so that the overall arrangement of the multiple first through holes 2111 in the first arc-shaped area 211 is more uniform. Moreover, after the multiple first through holes 2111 are arranged, the material volume at the first arc-shaped area 211 is reduced, and the tensile stress and compressive stress generated around the first through holes 2111 are reduced, thereby reducing the rebound force, so that the first arc-shaped area 211 is easier to bend.
  • the length of the multiple staggered first through holes 2111 is gradually reduced along the width direction, and when the display module 100 is folded, the center position of the first arc-shaped area 211 is more likely to bend.
  • the length of the first through holes 2111 in the first column is greater than the length of the first through holes 2111 in the second column, and the first column generates less rebound force than the second column, so it can be more easily bent.
  • the support member 20 also needs to support the display panel 10 while being easy to bend, so a certain strength is required to support the display panel 10.
  • the length of the first through hole 2111 is gradually reduced, and the area of the first arc-shaped area 211 corresponding to the display panel 10 is gradually increased, so the support strength for the display panel 10 can be gradually increased.
  • the lengths of the plurality of first through holes 2111 are gradually reduced along the width direction X, so that the difference in the rebound force of the first through holes 2111 in each column is small, so that the force on the display panel 10 corresponding to the first arc-shaped area 211 is more uniform, which can improve the situation where the portion of the display panel 10 corresponding to the first arc-shaped area 211 is separated from the first arc-shaped area 211, thereby avoiding the problem of light and shadow creases caused by the display panel 10 not being supported by the support member 20 at the bending position.
  • a plurality of second through holes 2121 are divided into a plurality of columns along the length direction Y. Some second through holes 2121 with gradually decreasing lengths are arranged in a staggered manner along the width direction X, and another portion of second through holes 2121 with the same lengths are arranged side by side along the width direction X.
  • the transition zone 212 can be roughly divided into a first area and a second area. The first area is the portion close to the bending area 21, and the second area is the portion close to the second arc-shaped area 213.
  • some second through holes 2121 are divided into a plurality of columns, and the plurality of second through holes 2121 in each column are arranged approximately equidistantly.
  • the plurality of second through holes 2121 in each column are arranged in a staggered manner with the plurality of second through holes 2121 in the adjacent column.
  • the staggered arrangement is such that a row of second through holes 2121 close to the first arc-shaped region 211 is the first row, and there are intervals between the second through holes 2121 in the first row.
  • the second through holes 2121 are arranged at the position of the second row corresponding to the interval. That is, the area between two adjacent second through holes 2121 in the first example corresponds to the second through holes 2121 in the second row.
  • the staggered arrangement of some of the second through holes 2121 makes the overall arrangement of some of the second through holes 2121 in the first region more uniform, and after the arrangement of some of the second through holes 2121 in the first region, the material volume at the transition region 212 is reduced, the tensile stress and compressive stress generated around the some of the second through holes 2121 are reduced, and the rebound force is reduced, so that the transition region 212 is bent, thereby having a good connection process with the first arc-shaped region 211. Meanwhile, by setting the length of some second through holes 2121 in the first region to gradually decrease along the width direction X, the area of the transition region 212 corresponding to the display panel 10 can be increased, thereby gradually increasing the support strength of the display panel 10 .
  • another portion of the second through holes 2121 is divided into multiple columns, and a plurality of second through holes 2121 in each column are arranged approximately equidistantly, and at the same time, another portion of the second through holes 2121 is divided into multiple rows, and two adjacent second through holes 2121 in each row are arranged approximately equidistantly.
  • the second through holes 2121 in two adjacent rows are arranged alternately.
  • the second through holes 2121 in the second area are arranged in a staggered manner in the first row between two adjacent second through holes 2121 in the second row, that is, some of the second through holes 2121 in the second area are arranged in a side-by-side and staggered pattern. Since the two transition areas 212 are symmetrically arranged along the center line O of the first arc-shaped area 211, the arrangement of the first area and the second area in the other transition area 212 is the same as the above content. The other part of the second through holes 2121 is arranged regularly so that the transition area 212 can better transition and connect with the second arc-shaped area 213 through the second area.
  • some of the staggered second through holes 2121 are regularly arranged side by side along the width direction X.
  • the structural strength of the second region is improved, thereby increasing the supporting strength of the display panel 10.
  • the display panel 10 in the display module 100 is separated from the support member 20 , and the force applied to the display panel 10 by the support portion 62 in the housing 400 may cause the display module 100 to have a light and shadow crease problem.
  • the second through hole 2121 in the transition zone 212 will deform under the action of tensile stress and compressive stress.
  • the projection area of the second through hole 2121 on the housing 400 is A
  • the projection area of the second through hole 2121 on the housing 400 is B. Since the connecting parts between the second through holes 2121 are subjected to tension in the case of bending, the second through holes 2121 in the transition zone 212 can move relative to the support portion 62, so that the area of B is slightly larger than A.
  • the tensile stress and compressive stress generated in the transition zone 212 are relatively balanced, and there is no need for the support portion 62 to support it, thereby reducing the force applied by the support portion 62 on the display panel 10 through the transition zone 212, so as to improve the light and shadow crease problem of the display module 100.
  • the force on the transition area 212 is more balanced, the force on the display panel 10 corresponding to the transition area 212 is more uniform, which can prevent the display panel 10 from detaching from the support member 20 and further improve the light and shadow crease problem of the display module 100.
  • the plurality of third through holes 2131 are divided into a plurality of rows along the width direction X, and two adjacent rows of third through holes 2131 are arranged side by side.
  • the plurality of third through holes 2131 are divided into a plurality of rows, and two adjacent third through holes 2131 in each row are arranged approximately equidistantly.
  • the third through holes 2131 in two adjacent rows are arranged alternately.
  • the arrangement of another part of the second through holes 2121 in the second area of the transition zone 212 is roughly the same as the arrangement of the plurality of third through holes 2131 in the second arc zone 213. It can be understood that the arrangement of the other second arc zone 213 is the same as the above.
  • the plurality of third through holes 2131 in the second arc zone 213 are arranged side by side along the width direction X and staggered along the length direction Y in a regular arrangement, so that the second arc zone 213 can play a role in bending transition, so that the bending zone 21 can be bent freely and ensure that it has a certain strength at the position of the second arc zone 213.
  • the transition zone 212 is connected to the second arc zone 213 through the second area, which can also ensure that the connection position of the two can be bent freely and has a certain strength.
  • the staggered arrangement of the first through holes 2111 , the second through holes 2121 , and the third through holes 2131 in the bending region 21 can also avoid the problem of the first through holes 2111 , the second through holes 2121 , and the third through holes 2131 being easily broken when they are arranged in a row or a column.
  • the first through hole 2111, the second through hole 2121 and the third through hole 2131 are circular, elliptical, racetrack-shaped or rectangular.
  • the first through hole 2111, the second through hole 2121 and the third through hole 2131 can be runway-shaped.
  • the runway shape refers to a shape composed of a semicircular shape at both ends along the length direction Y and a rectangle between the two semicircles.
  • the first through hole 2111 can be runway-shaped, and the second through hole 2121 can be set to an elliptical shape, that is, the first through hole 2111, the second through hole 2121 and the third through hole 2131 of different shapes can be combined with each other.
  • the hole widths of the first through hole 2111, the second through hole 2121 and the third through hole 2131 are W, and the range of W is 0.01 mm ⁇ W ⁇ 50 mm.
  • the hole width W refers to the width of the hole along the width direction X.
  • the hole width W can be 1 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, etc.
  • the hole width W in the range of 0.01 mm to 50 mm, and combining the arrangement of the first through hole 2111, the second through hole 2121 and the third through hole 2131, the mass of the first arc-shaped area 211 in the support member 20 can be reduced, thereby enabling the first arc-shaped area 211 to generate a smaller rebound force.
  • the second arc-shaped area 213 can retain more material than the first arc-shaped area 211 to maintain its own strength, thereby supporting the display panel 10 in the display module 100.
  • the transition area 212 is set between the first arc-shaped area 211 and the second arc-shaped area 213, so that it gradually transitions from generating a smaller rebound force to a structure with a certain strength, thereby better mitering the first arc-shaped area 211 and the second arc-shaped area 213, and avoiding the possibility of fracture when the first arc-shaped area 211 directly connects to the second arc-shaped area 213.
  • the hole width W of the first through hole 2111 is set to 15 mm
  • the hole width W of the second through hole is set to 10 mm and 6 mm in the width direction
  • the hole width W of the third through hole 2131 is set to 5 mm.
  • the hole width W of the first through hole 2111 is larger, so that the first arc-shaped area 211 is easier to bend.
  • the hole width W of the third through hole 2131 is smaller, so that the structural strength of the second arc-shaped area 213 is greater than that of the first arc-shaped area 211, so as to enhance the supporting force of the support member 20 on the display panel 10.
  • the hole width W of the transition area 212 gradually decreases in the width direction, so that it is easier to bend at the position close to the first arc-shaped area 211, and the structural strength is enhanced at the position close to the second arc-shaped area 213.
  • any two adjacent first through holes 2111, two second through holes 2121, and two third through holes 2131 the hole spacing between the first through hole 2111 and the second through hole 2121, and between the second through hole 2121 and the third through hole 2131 is D1, and 0.01 mm ⁇ D1 ⁇ 50 mm.
  • the hole spacing D1 refers to the distance between two adjacent through holes along the width direction X.
  • the two adjacent through holes may be the distance between two adjacent first through holes 2111, two adjacent second through holes 2121, two adjacent third through holes 2131, the distance between an adjacent first through hole 2111 and a second through hole 2121, and the distance between an adjacent second through hole 2121 and a third through hole 2131.
  • the hole spacing D1 can be 1mm, 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, etc.
  • the hole spacing D1 is set in the range of 0.01 mm to 50 mm.
  • the hole spacing D1 between two adjacent first through holes 2111, two adjacent second through holes 2121, or between the first through hole 2111 and the second through hole 2121 to be smaller the rebound force generated by the first arc-shaped area 211 and the partial transition area 212 can be reduced.
  • the hole spacing D1 between two adjacent second through holes 2121, two adjacent third through holes 2131, or between the second through hole 2121 and the third through hole 2131 to be larger, the strength of the partial transition area 212 and the second arc-shaped area 213 can be improved.
  • the hole spacing D1 between the two first through holes 2111 is set to 3mm
  • the hole spacing D1 between the two second through holes 2121 is set to 5mm
  • the hole spacing D1 between the two third through holes 2131 is set to 8mm. Setting the hole spacing D1 between the two first through holes 2111 to be smaller than the hole spacing D1 between the two second through holes 2121, and smaller than the hole spacing D1 between the two third through holes 2131 can reduce the rebound force generated by the first arc-shaped area 211, so as to facilitate the bending of the support member 20.
  • the hole spacing D1 of the second arc-shaped area 213 is set larger, The area of the second arc-shaped area 213 corresponding to the display panel 10 may be increased to enhance its own strength, thereby enhancing the support force for the display panel 10 .
  • the hole spacing between two adjacent first through holes 2111, two adjacent second through holes 2121, and two adjacent third through holes 2131 is D2, 0.01 mm ⁇ D2 ⁇ 10 mm.
  • the hole spacing D2 refers to the distance between two adjacent first through holes 2111, for example, along the length direction Y. That is, the spacing between two adjacent first through holes 2111 in each row of first through holes 2111.
  • the hole spacing D2 can be 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm, etc.
  • the hole spacing D2 is set within the range of 0.01 mm to 10 mm, and the hole spacing D2 can be set as needed so that the support member 20 can reduce the generation of rebound force in the first arc zone 211 and the partial transition zone 212, and can improve the structural strength in the second arc zone 213 and the partial transition zone 212 to support the display panel 10 in the display module 100.
  • the hole spacing D2 between two adjacent first through holes 2111 is set to 3 mm
  • the hole spacing D2 between two adjacent second through holes 2121 is set to 6 mm
  • the hole spacing D2 between two adjacent third through holes 2131 is set to 8 mm.
  • the hole spacing D2 is gradually increased, so that the bending area 21 can be easily bent while also having a certain strength, so that the bending area 21 can meet the preset force.
  • the preset force means that the bending area 21 can support the display panel 10 while being easy to bend.
  • the hole lengths of the first through hole 2111, the second through hole 2121 and the third through hole 2131 are L, 0.01 mm ⁇ L ⁇ 10 mm.
  • the hole length L refers to the distance between the opposite ends of the first through hole 2111 along the length direction Y. It is understandable that the same is true for the second through hole 2121 and the third through hole 2131.
  • the hole length L can be 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm, etc.
  • the hole length L is set in the range of 0.01 mm to 10 mm, and the hole spacing L can be set as needed, so that the support member 20 can reduce the generation of rebound force in the first arc zone 211 and the partial transition zone 212, and can improve the structural strength in the second arc zone 213 and the partial transition zone 212 to support the display panel 10 in the display module 100.
  • the hole length L of the first through hole 2111 is 8 mm, and the hole length L of the first through hole 2111 gradually decreases as it approaches the transition zone 212.
  • the hole length L of a portion of the second through holes 2121 is 6 mm, and the hole length L of the second through holes 2121 gradually decreases as it approaches the second arc-shaped zone 213; the hole length L of another portion of the second through holes 2121 is 4 mm, and the hole length L of the second through holes 2121 remains the same as it approaches the second arc-shaped zone 213.
  • the hole length L of the third through hole 2131 is set to 3 mm.
  • the hole length L of the first through hole can reduce the rebound force of the first arc-shaped zone 211, thereby facilitating the bending of the support member 20.
  • the hole length L of the third through hole 2131 is relatively small, which increases the area of the second arc-shaped area 213 that can support the display panel 10 , thereby improving the support strength of the display panel 10 .
  • hole width W, hole spacing D1, hole spacing D2 and hole length L mentioned above can also be sizes not listed one by one in their respective ranges.
  • the hole width W can also be 0.08 mm, 0.12 mm, etc.
  • the sizes of the first through hole 2111, the second through hole 2121 and the third through hole 2131 are set within the numerical ranges according to the above contents, so that the bending radius and the bending angle of the bending area 21 can meet the design requirements when bending.
  • the display panel 10 disposed on the support member 20 is subjected to more uniform force.
  • Fig. 8 shows the light and shadow creases displayed when the support member 20 of the display module 100 is folded without the second through hole 2121 in the transition zone 212.
  • Fig. 9 shows the light and shadow creases displayed when the support member 20 of the display module 100 provided in an embodiment of the present application is provided with the second through hole 2121 in the transition zone 212.
  • the support member 20 generally used is mainly suitable for application scenarios with a large bending radius R and a long bending arc length.
  • a laptop computer For example, a laptop computer.
  • the rebound force of the support member 20 will increase, and the light and shadow marks of the bending area 21 will be serious, as shown in Figure 8.
  • the first arc area 211 is the key position for reacting the rebound force and the light and shadow creases.
  • the support member 20 has a rebound force, which may cause the folded display module 100 to be unable to completely overlap.
  • the transition zone 212 is replaced with a plurality of second through holes 2121 provided at the transition zone 212 so that the adhesive 35 is bonded to the rotating shaft 500, so that the entire bending zone 21 is hollowed out by the plurality of first through holes 2111, the plurality of second through holes 2121 and the plurality of third through holes 2131.
  • the pressure of the first arc zone 211 is When the stress is reduced and the compressive stress is basically unchanged, the compressive stress and the tensile stress are relatively balanced, thereby reducing the rebound force generated by the first arc-shaped area 211.
  • the support force provided by the bending area 21 to the display panel 10 is also relatively balanced.
  • the transition zone 212 is provided with a plurality of second through holes 2121, no adhesive is provided to bond it to the support portion 62 of the rotating shaft 500.
  • the first arc-shaped zone 211 is subjected to relatively balanced force, no force is generated on the support portion 62 of the rotating shaft 500, and thus the support portion 62 of the rotating shaft 500 will not generate force on the first arc-shaped zone 211.
  • the force generated by the rotating shaft 500 on the display panel 10 through the support member 20 can also be eliminated, thereby improving the problem of light and shadow creases on the display panel 10, as shown in FIG. 9 .
  • FIG. 10 is a schematic diagram showing the local stress on the bending area 21 of the support member 20 when the display module 100 is in a folded state.
  • the transition zone 212 cancels the bonding with the support portion 62 of the rotating shaft 500, and a plurality of second through holes 2121 are provided in the transition zone 212.
  • the first arcuate zone 211 can directly extend to the second arcuate zone 213 through the transition zone 212, and the first arcuate zone 211 and the second arcuate zone 213 are no longer separately distinguished.
  • the bending zone 21 of the support member 20 can roughly form the shape of a free water drop. Among them, "roughly" can be understood as looking relatively similar.
  • the bending zone 21 roughly in the shape of a free water drop has a smaller bending radius R and an inclination angle ⁇ , and can be used for a display module 100 with a bending radius R less than 2 mm, a total arc length less than 20 mm, and a smaller bending angle ⁇ .
  • the bending area 21 and the plane area 22 may be an integrally formed structure. It is understandable that the bending area 21 and the plane area 22 may also be configured as a detachable structure. When the bending area 21 and the plane area 22 adopt a detachable structure, the bending area 21 may be configured as a structure similar to a "bamboo book". The bending area 21 in the "bamboo book" structure may be bent.
  • the support member 20 may be made of a metal member or a fiber composite member, wherein the first through hole 2111, the second through hole 2121, and the third through hole 2131 on the support member 20 may be formed by etching.
  • the protective layer 30 is disposed on the side of the display panel 10 away from the support member 20.
  • the protective layer 30 is mainly used to protect the display panel 10, and the protective layer 30 can also serve as the outer surface of the display module 100 to facilitate the user to perform touch operations.
  • the protective layer 30 can be made of ultra-thin glass (UTG) so that the protective layer 30 can also achieve functions such as bending and folding.
  • the protective layer 30 may also be replaced by other materials having equivalent functions or effects, for example, may also be replaced by polyimide (PI).
  • PI polyimide
  • the protective layer 30 and the display panel 10 can also be bonded and fixed by adhesive 35, for example, by using OCA (Optically Clear Adhesive) optical adhesive.
  • OCA Optically Clear Adhesive optical adhesive
  • the OCA optical adhesive has a certain modulus and thus will not flow into the third through hole 2131.
  • the two housings 400 are symmetrically arranged on both sides of the rotating shaft 500 .
  • the rotating shaft 500 drives the two housings 400 to rotate relative to each other.
  • Each housing 400 includes an outer shell 40 and a middle frame 42 (the middle frame 42 is transparent in FIG. 3 ), the outer shell 40 has a receiving cavity, and the middle frame 42 is disposed in the receiving cavity and can be exposed from the outer shell 40.
  • the housing 400 also includes a rotating shaft 44, and a guide groove is disposed at one end of the outer shell 40 away from the rotating shaft 500.
  • the rotating shaft 44 is rotatably matched with the outer shell 40 through the guide groove, and the middle frame 42 is rotatably connected to the rotating shaft 44.
  • the outer shell 40 and the middle frame 42 are rotatably matched through the rotating shaft 44. As the middle frame 42 and the outer shell 40 rotate relative to each other, the side of the middle frame 42 close to the rotating shaft 500 can be accommodated in the receiving cavity.
  • the two shells 400 are named as the first shell 400a and the second shell 400b.
  • the outer shell of the first shell 400a is the first outer shell 40a
  • the middle frame of the first shell 400a is the first middle frame 42a.
  • the outer shell of the second shell 400b is the second outer shell 40b
  • the middle frame of the second shell 400b is the second middle frame 42b.
  • the display module 100 is fixed to the side of the middle frame 42 away from the receiving cavity, wherein the display module 100 is fixed to the first middle frame 42a and the second middle frame 42b through the two plane areas 22 in the support member 20.
  • the two plane areas 22 and the first middle frame 42a and the second middle frame 42b can be bonded and fixed by using adhesive 35.
  • first middle frame 42a and the second middle frame 42b of the two plane regions 22 may be fixed by a snap-fitting method.
  • the display module 100 can be switched between the unfolded state and the bent state by relative rotation of the first shell 400a and the second shell 400b.
  • the guide groove also has a certain extension from close to the rotation axis 500 to far away from the rotation axis 500, and the rotation axis 44 can slide in the guide groove, so that the middle frame 42 can also be close to or away from the rotation axis 500.
  • the middle frame 42 can be relatively close to or away from the rotation axis 500, the installation of the display module 100 can be achieved, so that the display module 100 can be smoothly unfolded.
  • FIG11 shows a schematic diagram of the structure of the rotating shaft 500 provided in an embodiment of the present application.
  • FIG12 shows the rotating shaft 500 shown in FIG11 , with the rotating arm 70 in an unfolded state.
  • the rotating shaft 500 includes a fixing member 50, a connecting member 60 and a rotating arm 70 that are rotatably connected.
  • the fixing member 50 is rotatably connected to the connecting member 60
  • the connecting member 60 is fixedly connected to the rotating arm 70
  • the rotating arm 70 is fixedly connected to the housing 400.
  • the connecting member 60 is rotatably connected to the fixing member 50, so that the rotating arm 70 connected to the connecting member 60 can rotate relative to the fixing member 50, thereby enabling the housing 400 to rotate relative to the fixing member 50.
  • the two housings 400 can rotate relative to each other through the rotating shaft 500, thereby enabling the electronic device 001 to be folded.
  • the fixing member 50 includes an arc block 51
  • the connecting member 60 includes a supporting portion 62 and a connecting portion 61 connected to the supporting portion 62
  • the connecting portion 61 is provided with an arc groove 611.
  • the arc block 51 can be rotatably arranged in the arc groove 611
  • the connecting member 60 is fixedly connected to the rotating arm 70 through the supporting portion 62.
  • the fixing member 50 and the connecting member 60 are rotatably connected by sliding the arc block 51 in the arc groove 611.
  • the arc block 51 can be accommodated in the arc groove 611.
  • the use of the arc block 51 and the arc groove 611 in cooperation can avoid the problem of interference between the display module 100 and the cylindrical shaft.
  • the support portion 62 and the rotating arm 70 may be fixed by welding.
  • the rotating arm 70 may be fixedly connected to the housing 400 by bolts.
  • the transition zone 212 is directly opposite to the support portion 62 of the rotating shaft 500.
  • OCA optical glue is provided in the transition zone 212 so that it can be bonded to the support portion 62 of the rotating shaft 500.
  • the support portion 62 will provide support force to the transition zone 212.
  • the force provided by the support portion 62 will be transmitted to the display panel 10 through the transition zone 212, resulting in the presence of light and shadow creases on the display panel 10.
  • the OCA optical glue is also likely to creep, which will further aggravate the degree of light and shadow creases.
  • the setting of the adhesive 35 in the transition zone 212 is cancelled, and a plurality of second through holes 2121 are set in the transition zone 212, which can reduce the rebound force of the bending zone 21, and the force on the bending zone 21 is more balanced, and there is no need to apply force to the support member 20 through the support portion 62, so that the force originally transmitted from the support portion 62 to the display panel 10 through the bending zone 21 disappears, thereby improving the problem of light and shadow creases on the display panel 10.
  • the two shells 400 are rotated by the rotating shaft 500, so that the shells 400 have different rotation angles.
  • the shell 400 is connected to the display module 100.
  • the display module 100 can be driven to fold.
  • the support member 20 used in the display module 100 by setting a plurality of second through holes 2121 in the transition zone 212, enables the entire bending zone 21 to be in a water drop state after folding.
  • the support member 20 can reduce the rebound force by 30%, and the effect of improving the light and shadow crease can be improved by 30%.
  • the display module 100 using the support member 20 can be applied to application scenarios with a small bending radius, a small bending arc length and a small tilt angle.

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Abstract

提供一种支撑件、显示模组和电子设备。支撑件(20)包括弯折区(21)和平面区(22)。弯折区(21)包括依次连接的第一弧形区(211)、过渡区(212)和第二弧形区(213)，第二弧形区(213)连接平面区(22)，过渡区(213)正对电子设备中转轴(500)的支撑部(62)，且相对支撑部(62)能够移动。第一弧形区(211)设有多个第一通孔(2111)，过渡区(212)设有多个第二通孔(2121)，第二弧形区(213)设有多个第三通孔(2131)。第一弧形区(211)朝向第二弧形区(213)的方向为宽度方向，垂直于宽度方向的为长度方向。多个第一通孔(2111)的长度沿宽度方向逐渐减小，多个第二通孔(2121)中部分第二通孔(2121)的长度沿宽度方向逐渐减小，另一部分第二通孔(2121)的长度沿宽度方向相同，多个第三通孔(2131)的长度沿宽度方向相同。显示模组进一步在过渡区(212)设置多个第二通孔(2121)，可降低显示模组的反弹力，并改善光影折痕的问题。

Description

支撑件、显示模组及电子设备
相关申请的交叉引用
本申请要求在2022年11月04日提交中国专利局、申请号为202211379080.7、申请名称为“支撑件、显示模组及电子设备”的中国专利的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子设备技术领域，尤其涉及一种支撑件、显示模组及电子设备。
背景技术
显示模组中的支撑件是整个显示模组中的关键部件，为了能够达到可弯折的效果，通常在支撑件上设置很多的通孔。而通孔的位置分布与弯折半径、反弹力等之间有很大的关联，并且通孔的设置与光影折痕有很强的关系。
较为常用的支撑件通常包括三个部分，第一弧形区、粘胶区和第二弧形区。其中，第一弧形区和第二弧形区设置通孔，支撑件通过在粘胶区设置粘胶来与转轴粘接。但是，由于粘胶会发生蠕变，显示模组在进行折叠后光影折痕的问题较为显著。同时，该第一弧形区的反弹力较大，导致显示模组的反弹力较大。
发明内容
本申请提供了一种支撑件、显示模组及电子设备，旨在能够减小显示模组在进行折叠后产生的反弹力，并改善显示模组光影折痕的问题。
本申请实施例的第一方面提供一种支撑件，用于可折叠电子设备中。支撑件包括弯折区和平面区。弯折区包括依次连接的第一弧形区、过渡区和第二弧形区，第二弧形区远离第一弧形区的侧边连接平面区，过渡区电子设备中转轴的支撑部，且相对于支撑部能够移动。第一弧形区设有多个第一通孔，过渡区设有多个第二通孔，第二弧形区设有多个第三通孔。第一弧形区朝向第二弧形区的方向为宽度方向，垂直于宽度方向的为长度方向。多个第一通孔的长度沿所述宽度方向逐渐减小。多个第二通孔中部分第二通孔的长度沿所述宽度方向逐渐减小，另一部分第二通孔的长度沿所述宽度方向相同。多个第三通孔的长度沿所述宽度方向相同。
这种支撑件中，通过在第一弧形区设置多个第一通孔，进而减少了第一弧形区的材料体积，使得第一弧形区的反弹力减小，能够更加容易进行弯折，并且第一弧形区的长度沿宽度方向逐渐减小，以使第一弧形区在不断靠近第二弧形区时可提升其强度。当支撑件在弯折时，第一弧形区和第二弧形区之间的过渡区设置多个第二通孔，使整个弯折区都存在通孔的设计，弯折区处所产生的拉应力和压应力大致相同，在拉应力和压应力大致能够相互抵消时，无需通过转轴的支撑部对弯折区进行支撑，支撑部对弯折区在没有施加作用力的情况下，能够改善显示模组上的光影折痕问题。
基于第一方面，一种可能的实现方式中，多个第一通孔沿长度方向分成若干列，相邻两列第一通孔沿宽度方向交错设置。
在这种可能的实现方式中，将多个第一通孔分成多列后，并沿宽度方向将第一通孔交错设置，以使第一弧形区整体排布较为均匀，进而使支撑件在进行弯折时，第一弧形区所产生的反弹力也较为均匀，更加有利于第一弧形区进行弯折。
基于第一方面，一种可能的实现方式中，多个第二通孔沿长度方向分成若干列，部分长度逐渐 减小的第二通孔沿宽度方向交错设置。另一部分长度相同的第二通孔沿宽度方向并排设置。
在这种可能的实现方式中，部分第二通孔沿宽度方向交错设置，使得过渡区在靠近第一弧形区的部分，其产生较小的反弹力，靠近第一弧形区的部分过渡区也能够更加容易进行弯折。同时，另一部分第二通孔沿宽度方向并排设置，使得远离第一弧形区的部分弯折区相较于靠近第一弧形区的部分弯折区具有更高的强度。
基于第一方面，一种可能的实现方式中，多个第三通孔沿宽度方向分成若干排，相邻两排第三通孔交错设置。
在这种可能的实现方式中，沿宽度方向，相邻两排第三通孔交错设置，第三通孔的设置方式相较于第一通孔的设置方式更加规律。例如，每一排第三通孔等距设置，且上一排两个第二通孔之间刚好对应下一排中的一个第三通孔，该种设置方式使得第二弧形区的强度大于第一弧形区的强度，在第一弧形区能够更加容易发生弯折的情况下，第二弧形区则可提升对显示模组中显示面板的支撑力。
基于第一方面，一种可能的实现方式中，沿宽度方向，第一通孔、第二通孔和第三通孔的孔宽为W，0.01mm≤W≤50mm。
在这种可能的实现方式中，将第一通孔、第二通孔和第三通孔的孔宽W设置在0.01mm至50mm的范围之间，并结合第一通孔、第二通孔和第三通孔的排布方式，可使支撑件中第一弧形区的质量减小，进而使得第一弧形区能够产生更小的反弹力。第二弧形区相较于第一弧形区可留有更多的材料，以保持自身的强度，进而能够对显示模组中显示面板进行支撑。过渡区设置在第一弧形区和第二弧形区之间，使其从产生更小的反弹力逐渐过渡到具有一定强度的结构，进而将第一弧形区和第二弧形区进行更好的斜接，避免出现第一弧形区直接到第二弧形区时可能发生的断裂情况。
基于第一方面，一种可能的实现方式中，沿宽度方向，任意相邻的两第一通孔、两第二通孔、两第三通孔、第一通孔与第二通孔、第二通孔与第三通孔之间的孔间距为D1，0.01mm≤D1≤50mm。
在这种可能的实现方式中，将任意相邻的两第一通孔、任意相邻的两第二通孔，任意相邻的两第三通孔。第一通孔与第二通孔、第二通孔与第三通孔之间的孔间距D1设置在0.01mm至50mm的范围之间，一方面，将相邻的两第一通孔、相邻的两第二通孔或者第一通孔和第二通孔之间的孔间距D1设置的较小，可以减小第一弧形区和部分过渡区所产生的反弹力。另一方面，将相邻的两第二通孔、相邻的两第三通孔或者第二通孔和第三通孔之间的孔间距D1设置的较大，可以提升部分弯折区和第二弧形区的强度。
基于第一方面，一种可能的实现方式中，沿长度方向，相邻的两第一通孔、两第二通孔以及两第三通孔之间的孔间距为D2，0.01mm≤D2≤10mm。
在这种可能的实现方式中，沿长度方向，两第一通孔，两第二通孔以及两第三通孔之间的孔间距D2设置在0.01mm至10mm的范围之间，可根据需要对孔间距D2进行设置，以使得支撑件在第一弧形区和部分过渡区中能够减少反弹力的产生，在第二弧形区和部分过渡区中能够提升结构强度，以支撑显示模组中的显示面板。
基于第一方面，一种可能的实现方式中，沿长度方向，第一通孔、第二通孔和第三通孔为孔长为L，0.01mm≤L≤10mm。
在这种可能的实现方式中，沿长度方向，将第一通孔、第二通孔和第三通孔的孔长L设置在0.01mm至10mm的范围之间，可根据需要对孔间距L进行设置，以使得支撑件在第一弧形区和部分过渡区中能够减少反弹力的产生，在第二弧形区和部分过渡区中能够提升结构强度，以支撑显示模组中的显示面板。
基于第一方面，一种可能的实现方式中，沿垂直于支撑件的方向观察，第一通孔、第二通孔和第三通孔为圆形、椭圆形、跑道形或矩形。
在这种可能的实现方式中，将第一通孔、第二通孔和第三通孔设置为圆形、椭圆形、跑道形或矩形，可结合显示模组在弯折以及展开状态下的受力对第一通孔、第二通孔和第三通孔的形状进行替换，以减小支撑件的受力。
本申请实施例的第二方面提供一种显示模组，用于可折叠电子设备，包括显示面板、保护层和如第一方面任一种实现方式中的支撑件。支撑件、显示面板和保护层层叠设置，支撑件设于显示面板的第一面，保护层设于显示面板背离第一面的第二面。
这种显示模组采用在过渡区设有多个第二通孔的支撑件，可减小显示面板反弹力的同时，还可改善显示面板上出现光影折痕的问题。可对显示面板起到保护作用，避免显示面板受到划损。同时，该保护层也可作为显示模块中能够进行人机交互的表面，便于用户能够直接在该保护层上进行操作。
本申请实施例的第三方面提供一种电子设备，包括两个壳体、转轴和如第二方面任一种实现方式中的显示模组。两个壳体可转动连接，转轴的相对两侧分别固定连接两个壳体。显示模组包括与弯折区相连接的两平面区，两平面区对称设于弯折区的两侧，每一平面区连接一壳体。
这种电子设备通过转轴控制转动，使得两个壳体能够具有不同的转动角度。两个壳体转动，进而可带动显示模组进行弯折，显示模组采用上述实现方式中的支撑件，减小了两个壳体弯折后，显示模组具有的反弹力，以便于显示模组进行弯折。另一方面，基于过渡区设置多个第二通孔来代替设置粘胶，可改善显示模组的光影折痕，使显示模组弯折处更加顺滑。
基于第二方面，一种可能的实现方式中，转轴包括固定件、连接件和转动臂。固定件与连接件可转动连接，连接件与转动臂固定连接，转动臂与壳体固定连接。
在这种可能的实现方式中，通过固定件和连接件的转动连接，使得与转动臂连接的壳体能够进行转动，以实现两壳体进行折叠。
基于第二方面，一种可能的实现方式中，固定件包括弧形块，连接件包括支撑部和与支撑部连接的连接部，连接部设有弧形槽。弧形块可滑动地设于弧形槽内，连接件通过支撑部与转动臂固定连接。
在这种可能的实现方式中，该转轴能够通过弧形块和弧形槽的滑动配合，实现转动臂与壳体的转动连接，以便于电子设备进行折叠。
附图说明
图1是本申请一实施例提供的一种电子设备的结构示意图，两个壳体处于折叠状态。
图2是图1所示的电子设备中两个壳体处于展开状态，且两个壳体的表面位于同一平面。
图3是图2所示的电子设备的分解图。
图4是图1所示的电子设备在折叠状态下，显示模组也处于折叠状态的局部剖视结构示意图。
图5是本申请一实施例提供的显示模组的结构示意图。
图6是图5所示的显示模组中支撑件的局部俯视结构示意图。
图7是图6所示的支撑件中VII所对应的局部放大示意图。
图8是显示模组中的支撑件在过渡区未设置第二通孔时，进行折叠后所显示出的光影折痕情况。
图9是本申请一实施例提供的显示模组的支撑件在过渡区设置第二通孔时，进行折叠后所显示出的光影折痕情况。
图10是显示模组处于折叠状态下支撑件的弯折区所受的局部应力示意图。
图11是本申请一实施例提供的转轴的结构示意图，转动臂呈折叠状态。
图12是图11中所示的转轴，其转动臂呈展开状态。
主要元件符号说明
电子设备                        001
显示模组                        100
显示面板                        10
支撑件                          20
弯折区                          21
第一弧形区                      211
第一通孔                        2111
过渡区                          212
第二通孔                        2121
第二弧形区                      213
第三通孔                        2131
平面区                          22
保护层                          30
粘胶                            35
孔宽                            W
孔间距                          D1
孔间距                          D2
孔长                            L
中心线                          O
半径                            R
夹角                            θ
宽度方向                        X
长度方向                        Y
壳体                            400
第一壳体                        400a
第二壳体                        400b
外壳                            40
第一外壳                        40a
第二外壳                        40b
中框                            42
第一中框                        42a
第二中框                        42b
转动轴                          44
转轴                            500
固定件                          50
弧形块                          51
连接件                          60
连接部                          61
弧形槽                          611
支撑部                          62
转动臂                          70
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
以下由特定的具体实施例说明本申请的实施方式，本领域技术人员可由本说明书所揭示的内容轻易地了解本申请的其他优点及功效。虽然本申请的描述将结合较佳实施例一起介绍，但这并不代表此申请的特征仅限于该实施方式。恰恰相反，结合实施方式作申请介绍的目的是为了覆盖基于本申请的权利要求而有可能延伸出的其它选择或改造。为了提供对本申请的深度了解，以下描述中将包含许多具体的细节。本申请也可以不使用这些细节实施。此外，为了避免混乱或模糊本申请的重点，有些具体细节将在描述中被省略。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
以下，如果有用到，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。“上”、“下”、“左”、“右”等方位术语是相对于附图中的部件示意置放 的方位来定义的，应当理解到，这些方向性术语是相对的概念，它们用于相对于的描述和澄清，其可以根据附图中部件所放置的方位的变化而相应地发生变化。
在本申请中，如果有用到，除非另有明确的规定和限定，术语“连接”应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
在下述实施例结合示意图进行详细描述时，为便于说明，表示器件局部结构的图会不依一般比例作局部放大，而且所述示意图只是示例，其在此不应限制本申请保护的范围。
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请的实施方式作进一步地详细描述。
为了便于理解本申实施例提供的显示模组100，首先介绍一下应用场景。
图1示出了本申请一实施例提供的一种电子设备001的结构示意图，两个壳体400处于折叠状态。
请参阅图1，本申请实施例提供的电子设备001为一种可进行折叠的电子设备。本申请实施例所提供的显示模组100能够应用在可折叠的电子设备001中。可折叠具体来说是包括能够相对转动的两个部分，通过这两个部分的转动、折叠等方式能够改变电子设备001最终所呈现的形态。在不同使用需求条件下，用户可以对该电子设备001进行折叠或者展开来满足用不同的需求。例如，当用户需要随身携带电子设备001时，可将电子设备001进行折叠，以减少电子设备001所占用的空间，从而提升便携性。当用户需要使用电子设备001时，可以将电子设备001展开，以能够展现出更大的显示面积及操作区域供用户观看和交互，从而提升使用的便利性。
电子设备001依据类型可划分为多种，例如电子设备001可为手机、平板电脑、笔记本电脑、可穿戴设备以及电子书等。作为示例性的，本申请实施例中的电子设备001将以手机为例进行说明。
图2示出了图1所示的电子设备001中两个壳体400处于展开状态，且两个壳体400的表面位于同一平面。图3示出了图2所示的电子设备001的分解图。
请参阅图2和图3，电子设备001包括显示模组100、两个壳体400和转轴500。两个壳体400可转动连接，转轴500的相对两侧分别固定连接两个壳体400。在转轴500的作用下，两个壳体400之间能够发生相对转动、移动等动作。显示模组100与壳体400连接，且设于壳体400的表面。当电子设备001展开时，两个壳体400设置显示模块的表面大致平齐，显示模组100平铺在壳体400的表面，以提供较大的显示面积及操作区域，从而提升使用性能。当电子设备001被折叠后，其中一壳体400相对另一壳体400转动，设于壳体400上的显示模组100被壳体400带动而进行弯折。折叠后的电子设备001中，显示模组100可以被包裹在两壳体400及转轴500之间，即可以起到保护显示模组100的作用，防止在外力的作用下显示模组100受到损坏，又能够提升电子设备001的安全性能。
如果显示模组100与两壳体400同步运动，两壳体400从展开到折叠相对运动180°时，显示模组100与两壳体400相对应的部分也相对运动180°。而对应壳体400运动的显示模组100在运动的过程中，存在弯折的部分，弯折的部分会出现弧形的凸起，显示模组100在反复的弯折下凸起会形成明显的光影折痕。另外，由于显示模组100被壳体400带动而进行弯折，显示模组100内部的弯折处会存在反弹力，而使得两壳体400之间存在细小的间隙，无法完全的重叠。
图4示出了图1所示的电子设备001在折叠状态下，显示模组100也处于折叠状态的局部剖视结构示意图。
请参阅图4，当操作壳体400将其从展开状态进行折叠时，壳体400也带动显示模组100进行折叠。
图5示出了本申请一实施例提供的显示模组100的结构示意图。图6示出了图5所示的显示模组100中支撑件20的俯视结构示意图。图7示出了图6所示的支撑件20的局部放大示意图。
请参阅图5、图6和图7，本申请的一实施例提供一种显示模组100。该显示模组100可应用于上述实施例中的电子设备001中。
显示模组100包括显示面板10、支撑件20和保护层30。显示面板10、支撑件20和保护层30层叠设置，支撑件20设于显示面板10的第一面，保护层30设于显示面板10背离第一面的第二面，结合图5示例，即支撑件20设置在显示面板10的下表面，保护层30设于显示面板10的上表面。 支撑件20主要是用来支撑与其层叠设置的显示面板10，以使得显示面板10具有一定的强度，便于用户进行交互操作。其中，显示模组100可以是OLED(Organic Light-Emitting Diode)显示屏，也可以是LCD(Liquid Crystal Display)、Micro-LED(Micro Light-Emitting Diode)这些类型的显示屏。还可以是QLED(Quantum Dot Light Emitting Diodes)等显示屏。作为示例性的，本申请实施例中将以OLED作为显示模组100进行说明。
显示面板10可以主要是用来显示画面，并能够作为交互界面来指示用于进行一系列的交互动作。例如，点击、滑动以及按压等触控操作。而为了能够显示画面，显示面板10可以为包括有机电致发光层和像素驱动电路。
支撑件20包括弯折区21和平面区22。其中，弯折区21与平面区22相连接。当显示面板10与支撑件20层叠设置时，显示面板10与弯折区21及平面区22相接触。显示面板10与支撑件20之间可通过粘胶35进行粘接固定。例如，显示面板10和支撑件20之间可采用OCA(Optically Clear Adhesive)光学胶进行粘接。弯折区21与显示面板10的弯折处相对应。
请参阅图5，弯折区21为显示模组100在进行折叠的情况下，支撑件20能够发生弯折的区域。当显示模组100处于展开状态时，支撑件20随之展开，弯折区21从弯折状态转换为平面状态。平面区22为显示模组100在进行折叠的情况下，支撑件20除发生弯折以外的其他区域。当显示模组100处于展开状态时，支撑件20随之展开后，平面区22依旧保持原本的状态。
支撑件20为一对称结构。其中，支撑件20以弯折区21的中心线O作为对称轴线对称设置。可以理解，即支撑件20包括两个平面区22，两个平面区22分别与弯折区21的相对两侧连接。弯折区21和两个平面区22所形成的整体轮廓与显示面板10大致相同，以能够充分的对显示面板10的各个位置进行支撑，从而提升显示面板10的强度。
请参阅图4、图6和图7，支撑件20所包括的弯折区21中，该弯折区21包括依次连接的第一弧形区211、过渡区212和第二弧形区213。第二弧形区213远离第一弧形区211的侧边连接平面区22，过渡区212对应电子设备001中转轴500的支撑部62，且过渡区212相对于支撑部62能够移动。为清楚的展示第一弧形区211、过渡区212和第二弧形区213，将通过虚线将其间隔开。可以理解，弯折区21以第一弧形区211的中心线O作为对称轴线对称设置。即弯折区21的相对两侧分别连接过渡区212，每一过渡区212远离第一弧形区211的侧边连接一第二弧形区213，每一第二弧形区213远离第一弧形区211的侧边连接一平面区22。
请参阅图6和图7，为了更好的对显示模组100的结构进行说明，将以第一弧形区211朝向第二弧形区213的方向为宽度方向X，沿垂直于宽度方向X并平行于弯折区21的中心线O方向为长度方向Y。第一弧形区211设有多个第一通孔2111，过渡区212设有多个第二通孔2121，第二弧形区213设有多个第三通孔2131。多个第一通孔2111的长度沿宽度方向X逐渐减小。多个第二通孔2121中部分第二通孔2121的长度沿宽度方向X逐渐减小，另一部分第二通孔2121的长度沿宽度方向X相同。多个第三通孔2131的长度沿宽度方向相同。
在一实施例中，多个第一通孔2111沿长度方向Y分成若干列，相邻两列第一通孔2111沿宽度方向X交错设置。其中，将以第一弧形区211的中心线O到过渡区212靠近第一弧形区211的侧边这一部分区域进行说明。沿长度方向Y，多个第一通孔2111分成多列，每一列中的若干第一通孔2111大致等距的设置。每一列中的若干第一通孔2111与相邻一列的若干第一通孔2111之间交错设置。
例如，交错设置是以靠近第一弧形区211的中心线O为第一列，第一例中的若干第一通孔2111之间存在间隔。沿宽度方向X，在与第一列相邻的第二例中，该间隔相对应的第二列的位置处则设置第一通孔2111。即第一列中两个相邻的第一通孔2111之间的区域对应第二例中的第一通孔2111。另外，因两过渡区212沿第一弧形区211的中心线O对称设置，第一弧形区211的中心线O到另一过渡区212靠近另一第一弧形区211的侧壁，该区域中多个第一通孔2111的排布方式与上述内容相同。
将多个第一通孔2111分成若干列，每一列中的第一通孔2111与相邻一列中的第一通孔2111交错设置，使第一弧形区211中多个第一通孔2111的整体排布较为均匀，并且，在设置多个第一通孔2111后，第一弧形区211处的材料体积减少，第一通孔2111周围所产生的拉应力和压应力减小，进而减小反弹力，以使第一弧形区211更容易地弯折。
使交错设置的多个第一通孔2111的长度沿宽度方向逐渐减小，在显示模组100进行折叠时,第一弧形区211的中心位置更加容易发生弯折。例如，第一列中的若干第一通孔2111的长度大于第二列中第一通孔2111的长度，第一列相较于第二列所产生的反弹力较小，进而能够更容易弯折。但是，支撑件20在便于弯折的情况下，也要对显示面板10起到支撑的作用，那么就需要一定的强度对显示面板10进行支撑。沿着宽度方向X，第一通孔2111的长度逐渐减小，则第一弧形区211对应显示面板10的面积逐渐增加，进而能够逐渐增加对显示面板10的支撑强度。采用将多个第一通孔2111的长度沿宽度方向X逐渐减小的方式进行设置，使得每一列中的第一通孔2111的反弹力差值较小，使第一弧形区211所对应的显示面板10处的受力较为均匀，可改善显示面板10对应第一弧形区211的部分脱离第一弧形区211的情况，进而避免显示面板10在弯折位置处没有支撑件20进行支撑而造成光影折痕问题。
请参阅图7，在一实施例中，多个第二通孔2121沿长度方向Y分成若干列。部分长度逐渐减小的第二通孔2121沿宽度方向X交错设置，另一部分长度相同的第二通孔2121沿宽度方向X并排设置。其中，过渡区212可大致划分为第一区域和第二区域。第一区域为靠近弯折区21的部分，第二区域为靠近第二弧形区213的部分。在第一区域中沿长度方向，部分第二通孔2121分成多列，每一列的若干第二通孔2121大致等距设置。每一列中的若干第二通孔2121与相邻一列的若干第二通孔2121之间交错设置。
例如，在第一区域中，交错设置是以靠近第一弧形区211的一列第二通孔2121为第一列，第一列中的若干第二通孔2121之间存在间隔。在与第一列相邻的第二例中，该间隔相对应的第二列的位置处则设置第二通孔2121。即第一例中两个相邻的第二通孔2121之间的区域对应第二列中的第二通孔2121。将部分第二通孔2121交错设置，使第一区域中的部分第二通孔2121的整体排布较为均匀，并且，该第一区域中设置部分第二通孔2121后，过渡区212处的材料体积减少，该部分第二通孔2121周围所产生的拉应力和压应力减小，进而减小反弹力，以使过渡区212进行弯折，从而与第一弧形区211之间具有良好的衔接过程。同时，将第一区域中部分第二通孔2121的长度设置为沿宽度方向X逐渐减小，也可增加过渡区212对应显示面板10的面积，进而能够逐渐增加对显示面板10的支撑强度。
又例如，在第二区域中沿宽度方向X，另一部分第二通孔2121分成多列，每一列中若干第二通孔2121大致等距设置，同时，另一部分第二通孔2121分成多排，每一排相邻两第二通孔2121大致等距设置。并且，沿长度方向Y，相邻两排的第二通孔2121交错设置。
第二区域中的交错设置为第一排的第二通孔2121设于第二排相邻两第二通孔2121之间，即第二区域中的部分第二通孔2121采用并排且交错的规律进行排布。因两过渡区212沿第一弧形区211的中心线O对称设置，另一过渡区212中第一区域以及第二区域的排布方式与上述内容相同。将另一部分第二通孔2121呈规律排布，使过渡区212通过第二区域可更好的与第二弧形区213过渡衔接。
在第二区域中将交错设置的部分第二通孔2121沿宽度方向X以并排的方式规律的进行排布，相较于第一区域中第二通孔2121沿宽度方向X交错设置，由于第二区域中两排第二通孔2121之间并未对应设有通孔，提升了第二区域处的结构强度，进而可增加对显示面板10的支撑强度。
显示模组100中的显示面板10与支撑件20相脱离，以及壳体400中支撑部62对显示面板10所施加的力均可能造成显示模组100产生光影折痕的问题。
显示模组100进行弯折后，过渡区212中的第二通孔2121在拉应力和压应力的作用下会发生变形。例如，显示模组100在展开的情况下，第二通孔2121在壳体400上的投影面积为A，显示模组100在弯折的情况下，第二通孔2121在壳体400上的投影面积为B。由于在弯折的情况下，第二通孔2121之间的连接部分受到拉力，进而使得过渡区212中的第二通孔2121相对于支撑部62能够发生移动，使得B的面积稍大于A。在显示模组100弯折后，过渡区212所产生的拉应力和压应力较为均衡，无需支撑部62对其进行支撑，进而减小支撑部62通过过渡区212施加在显示面板10上的力，以改善显示模组100的光影折痕问题。同时，由于过渡区212的受力较为均衡，使得过渡区212所对应的显示面板10处的受力更加均匀，可避免显示面板10发生脱离支撑件20的情况，进一步改善显示模组100的光影折痕问题。
请参阅图7，在一实施例中，多个第三通孔2131沿宽度方向X分成若干排，相邻两排第三通孔2131并排设置。其中，沿长度方向Y，多个第三通孔2131分成多列，每一列中若干第三通孔2131 大致等距设置。沿宽度方向X，多个第三通孔2131分成多排，每一排相邻两第三通孔2131大致等距设置。并且，沿长度方向Y，相邻两排的第三通孔2131交错设置。
过渡区212中第二区域内的另一部分第二通孔2121的设置方式与第二弧形区213中多个第三通孔2131的排布方式大致相同。可以理解的，另一第二弧形区213的排布方式与上述内容相同。将第二弧形区213中的多个第三通孔2131以沿宽度方向X并排设置，以及沿长度方向Y交错设置的规律排布方式，使第二弧形区213可起到弯折过渡的作用，以便弯折区21能够自由进行弯折且确保在该第二弧形区213位置处具有一定的强度。过渡区212通过第二区域与第二弧形区213连接，也可确保二者的连接位置能够自由弯折，且具有一定的强度。
将弯折区21中的第一通孔2111、第二通孔2121以及第三通孔2131交错设置，也可避免多个第一通孔2111、第二通孔2121以及第三通孔2131排成一排或一列时容易发生断裂的问题。
请再参阅图7，在一实施例中，沿支撑件20和显示面板10的层叠方向，即沿垂直于支撑件20的方向观察，第一通孔2111、第二通孔2121和第三通孔2131为圆形、椭圆形、跑道形或矩形。作为示例性的，本申请中第一通孔2111、第二通孔2121和第三通孔2131可以为跑道形。其中，跑道形指沿长度方向Y，两端大致为半圆形，两半圆形之间为矩形所组成的形状。可以理解的，在其他实施例中，第一通孔2111可为跑道形，第二通孔2121可设置为椭圆形，即呈不同形状的第一通孔2111、第二通孔2121和第三通孔2131可以相互组合。
请参阅图7，在一实施例中，沿宽度方向X，第一通孔2111、第二通孔2121和第三通孔2131的孔宽为W，W的范围为0.01mm≤W≤50mm。其中，孔宽W是指沿宽度方向X，孔的宽度。孔宽W可为1mm、5mm、10mm、15mm、20mm、25mm、30mm、35mm、40mm、45mm、50mm等。
将孔宽W设置在0.01mm至50mm的范围之间，并结合第一通孔2111、第二通孔2121和第三通孔2131的排布方式，可使支撑件20中第一弧形区211的质量减小，进而使得第一弧形区211能够产生更小的反弹力。第二弧形区213相较于第一弧形区211可留有更多的材料，以保持自身的强度，进而能够对显示模组100中显示面板10进行支撑。过渡区212设置在第一弧形区211和第二弧形区213之间，使其从产生更小的反弹力逐渐过渡到具有一定强度的结构，进而将第一弧形区211和第二弧形区213进行更好的斜接，避免出现第一弧形区211直接到第二弧形区213时可能发生的断裂情况。
例如，将第一通孔2111的孔宽W设置为15mm，将第二通孔的孔宽W沿宽度方向设置为10mm、6mm，而将第三通孔2131的孔宽W设置为5mm。第一通孔2111的孔宽W较大，使得第一弧形区211更加便于弯折。第三通孔2131的孔宽W较小，使得第二弧形区213的结构强度大于第一弧形区211，以提升支撑件20的对显示面板10的支撑力。而过渡区212的孔宽W沿宽度方向逐渐减小，以便于其靠近第一弧形区211的位置更容易进行弯折，靠近第二弧形区213的位置提升了结构强度。
请参阅图7，在一实施例中，沿宽度方向X，任意相邻的两第一通孔2111、两第二通孔2121、两第三通孔2131，第一通孔2111与第二通孔2121之间、第二通孔2121与第三通孔2131之间的孔间距为D1，0.01mm≤D1≤50mm。其中，孔间距D1是指沿宽度方向X，相邻两通孔之间的距离。该相邻的两通孔可以为相邻的两第一通孔2111、相邻的两第二通孔2121、相邻的两第三通孔2131、相邻的第一通孔2111与第二通孔2121以及相邻的第二通孔2121与第三通孔2131之间的距离。
孔间距D1可为1mm、5mm、10mm、15mm、20mm、25mm、30mm、35mm、40mm、45mm、50mm等。
将孔间距D1设置在0.01mm至50mm的范围之间，一方面，将相邻的两第一通孔2111、相邻的两第二通孔2121，或者第一通孔2111和第二通孔2121之间的孔间距D1设置的较小，可以减小第一弧形区211和部分过渡区212所产生的反弹力。另一方面，将相邻的两第二通孔2121、相邻的两第三通孔2131或者第二通孔2121和第三通孔2131之间的孔间距D1设置的较大，可以提升部分过渡区212和第二弧形区213的强度。
例如，两第一通孔2111之间的孔间距D1设置在3mm，两第二通孔2121之间的孔间距D1设置在5mm，两第三通孔2131之间的孔间距D1设置在8mm。将两第一通孔2111之间的孔间距D1设置为小于两第二通孔2121的孔间距D1，以及小于两第三通孔2131的孔间距D1，可减小第一弧形区211所产生的反弹力，以便于支撑件20进行弯折。第二弧形区213的孔间距D1设置的较大， 可增加第二弧形区213对应显示面板10的面积，以提升其自身的强度，进而提升对显示面板10的支撑力。
请参阅图7，在一实施例中，沿长度方向Y，相邻的两第一通孔2111、两第二通孔2121以及两第三通孔2131之间的孔间距为D2，0.01mm≤D2≤10mm。其中，孔间距D2是指沿长度方向Y，例如相邻的两第一通孔2111之间的距离。即每列若干第一通孔2111中，相邻两个第一通孔2111之间的间距。
孔间距D2可为0.05mm、0.1mm、0.15mm、0.2mm、0.25mm、0.3mm、0.35mm、0.4mm、0.45mm、0.5mm、0.55mm、0.6mm、0.65mm、0.7mm、0.75mm、0.8mm、0.85mm、0.9mm、0.95mm等。
将孔间距D2设置在0.01mm至10mm的范围之间，可根据需要对孔间距D2进行设置，以使得支撑件20在第一弧形区211和部分过渡区212中能够减少反弹力的产生，在第二弧形区213和部分过渡区212中能够提升结构强度，以支撑显示模组100中的显示面板10。
例如，相邻两第一通孔2111的孔间距D2设置为3mm，相邻两第二通孔2121的孔间距D2设置为6mm，相邻两第三通孔2131的孔间距D2设置为8mm。沿宽度方向X，逐渐增加孔间距D2的距离，使弯折区21在能够便于弯折的情况下，同时还具有一定的强度，以使弯折区21能够满足预设的受力。其中，预设的受力即指弯折区21在便于弯折的同时，也可对显示面板10进行支撑。
请参阅图7，在一实施例中，沿长度方向Y，第一通孔2111、第二通孔2121以及第三通孔2131的孔长为L，0.01mm≤L≤10mm。以第一通孔2111为例，孔长L是指沿长度方向Y，第一通孔2111相对两端之间的距离。可以理解的，第二通孔2121和第三通孔2131也是如此。
孔长L可以为0.05mm、0.1mm、0.15mm、0.2mm、0.25mm、0.3mm、0.35mm、0.4mm、0.45mm、0.5mm、0.55mm、0.6mm、0.65mm、0.7mm、0.75mm、0.8mm、0.85mm、0.9mm、0.95mm等。
将孔长L设置在0.01mm至10mm的范围之间，可根据需要对孔间距L进行设置，以使得支撑件20在第一弧形区211和部分过渡区212中能够减少反弹力的产生，在第二弧形区213和部分过渡区212中能够提升结构强度，以支撑显示模组100中的显示面板10。
例如，第一通孔2111的孔长L为8mm，且在不断靠近过渡区212时，第一通孔2111的孔长L逐渐减小。第二通孔2121中的部分第二通孔2121的孔长L为6mm，该部分第二通孔2121在不断靠近第二弧形区213时，第二通孔2121的孔长L逐渐减小；另一部分第二通孔2121的孔长L为4mm，该部分第二通孔2121在不断靠近第二弧形区213时，第二通孔2121的孔长L保持相同。第三通孔2131的孔长L设置为3mm。将第一通孔的孔长L设置为大于第二通孔2121、第三通孔2131的孔长L，可减少第一弧形区211的反弹力，进而便于支撑件20进行弯折。第三通孔2131的孔长L较小，则增加了第二弧形区213能够对显示面板10进行支撑的面积，进而提升了对显示面板10的支撑强度。
可以理解的，上述孔宽W、孔间距D1、孔间距D2以及孔长L还可为在其各自范围内未一一列出的尺寸。例如，孔宽W还可为0.08mm、0.12mm等。
在显示模组100折叠的情况下，按照上述内容对第一通孔2111、第二通孔2121和第三通孔2131的尺寸设置在该些数值范围内，可使得弯折区21在进行弯折时其弯折半径以及弯折的夹角能够满足设计的要求。同时，设置在支撑件20上的显示面板10受力也更加均匀。
图8示出了显示模组100的支撑件20在过渡区212未第二通孔2121时，进行折叠后所显示出的光影折痕情况。图9示出了本申请一实施例提供的显示模组100的支撑件20在过渡区212设置第二通孔2121时，进行折叠后所显示出的光影折痕情况。
一般所采用的支撑件20主要适用于弯折半径R大，弯折弧长较长的应用场景中。例如，笔记本电脑。但是对于弯折半径小于2mm，弯折弧长小于20mm的应用场景，若采用较为常见的支撑件20，会造成支撑件20的反弹力增加，弯折区21的光影痕迹严重，如图8所示。并且，由于弯折区21在进行折叠的过程中，原本产生的压应力较大且集中在第一弧形区211，故第一弧形区211是反应反弹力及光影折痕的关键位置。在压应力大于拉应力的情况下，支撑件20存在反弹力而致使折叠的显示模组100可能会无法完全重叠。
本申请中，将过渡区212原本设置粘胶35使其与转轴500进行粘接，替换为在过渡区212的位置设置多个第二通孔2121，使得弯折区21整个区域由多个第一通孔2111、多个第二通孔2121以及多个第三通孔2131形成镂空结构。在过渡区212设置第二通孔2121后，使得第一弧形区211的压 应力减小，压应力基本未产生变化时，使得压应力和拉应力较为均衡，进而减小第一弧形区211所产生的反弹力。同时，第一弧形区211的拉应力与压应力较为均衡时，弯折区21提供给显示面板10的支撑力也较为均衡。
另外，过渡区212设置多个第二通孔2121后，不再设置粘胶使其与转轴500的支撑部62进行粘接。第一弧形区211在受力较为均衡的情况下，对转轴500的支撑部62不产生任何力，进而转轴500的支撑部62也不会对第一弧形区211产生力。在能够避免显示面板10发生脱离弯折区21情况下，还能够消除转轴500通过支撑件20对显示面板10所产生的力，进而改善显示面板10上出现光影折痕的问题，如图9所示。
图10示出了显示模组100处于折叠状态下支撑件20的弯折区21所受的局部应力示意图。
请参阅图4和图10，过渡区212取消与转轴500的支撑部62的粘接，并在过渡区212设置多个第二通孔2121，第一弧形区211通过过渡区212能够直接延伸到第二弧形区213，第一弧形区211和第二弧形区213之间不再单独的进行区分。当显示模组100进行弯折时，支撑件20的弯折区21可大致形成自由水滴的形状。其中，“大致”可理解为看起来较为相似。大致呈自由水滴形状的弯折区21具有较小的弯折半径R和倾斜夹角θ，能够适用弯折半径R小于2mm，总弧长小于20mm且弯折夹角θ较小的显示模组100。
弯折区21和平面区22可为一体成型结构。可以理解的，弯折区21和平面区22也可设置为可拆分结构。当弯折区21和平面区22采用可拆分的结构时，弯折区21可设置为类似“竹书”的结构。呈“竹书”结构的弯折区21可进行弯折。支撑件20可采用金属件或纤维复合件制成，其中，支撑件20上的第一通孔2111、第二通孔2121以及第三通孔2131可采用蚀刻的方式形成。
请再参阅图5，保护层30设于显示面板10背离支撑件20的一侧。保护层30主要是用以对显示面板10进行保护，并且保护层30还可作为显示模组100的外表面，以便于用户进行触控操作。保护层30可以由超薄玻璃(Ultra-Thin Glass，UTG)制成，以使得保护层30也能够实现弯折、折叠等功能。
可以理解的，保护层30还可替换为其他具有等同功效或作用的材料制成，例如，还可替换为聚酰亚胺(Polyimide，PI)。
保护层30与显示面板10之间也可通过粘胶35进行粘接固定，例如，采用OCA(Optically Clear Adhesive)光学胶进行粘接。支撑件20与显示面板10之间通过OCA光学胶进行粘接时，因OCA光学胶具有一定模量，进而不会流至第三通孔2131中。
请再参阅图3，两个壳体400对称设置在转轴500的两侧，通过转轴500带动两个壳体400相对转动。
每个壳体400包括外壳40和中框42(图3中中框42透明化处理)，外壳40具有收容腔，中框42设于收容腔并可自外壳40显露出。壳体400还包括转动轴44，外壳40远离转轴500的一端设置有导向槽，转动轴44通过导向槽与外壳40可转动地配合，中框42与转动轴44可转动地连接。通过转动轴44使得外壳40与中框42可转动地配合。随着中框42与外壳40的相对转动，中框42靠近转轴500的一侧能够容置在收容腔内。
为了便于描述，将两个壳体400命名为第一壳体400a和第二壳体400b。相对应的，第一壳体400a的外壳为第一外壳40a，第一壳体400a的中框为第一中框42a。第二壳体400b的外壳为第二外壳40b，第二壳体400b的中框为第二中框42b。显示模组100固定在中框42远离收容腔的一面，其中，显示模组100通过支撑件20中的两平面区22与第一中框42a和第二中框42b固定。两平面区22与第一中框42a和第二中框42b之间可采用粘胶35进行粘接固定。
可以理解的，两平面区22域第一中框42a和第二中框42b之间还可采用其他固定方式，例如，还可采用卡接的方式进行固定。
通过第一壳体400a和第二壳体400b的相对转动，显示模组100可以在展开状态和弯折状态之间转换。导向槽还从靠近转轴500到远离转轴500具有一定延伸量，转动轴44能够在导向槽内滑动，使得中框42还能够靠近或远离转轴500。通过中框42能够相对靠近或远离转轴500的特性，可以显示模组100的安装，使得显示模组100能够平整地展开。
在中框42与显示模组100之间可设置电池、摄像头模组以及天线模组等，以使的电子设备001能够实现一定的功能，以满足用户的需求。图11示出了本申请一实施例提供的转轴500的结构示意 图，转动臂70呈折叠状态。图12示出了图11中所示的转轴500，其转动臂70呈展开状态。
请参阅图11和图12，在一实施例中，转轴500包括固定件50、连接件60和转动臂70可转动连接。固定件50与连接件60转动连接，连接件60与转动臂70固定连接，转动臂70与壳体400固定连接。其中，连接件60可转动地连接固定件50，使得与连接件60相连接的转动臂70相对于固定件50能够转动，进而使得壳体400相对固定件50能够转动。当操作一壳体400时，两壳体400之间通过转轴500能够相对转动，进而可使电子设备001能够折叠。
请再参阅图11和图12，在一实施例中，固定件50包括弧形块51，连接件60包括支撑部62和与支撑部62连接的连接部61，连接部61设有弧形槽611。弧形块51可转动得设于弧形槽611内，连接件60通过支撑部62与转动臂70固定连接。其中，固定件50和连接件60通过弧形块51在弧形槽611内滑动而实现转动连接。当电子设备001处于展开转态时，弧形块51可收容在弧形槽611内部，相较于通过圆柱轴连接的固定件50和连接件60，采用弧形块51和弧形槽611相配合的方式能够避免显示模组100与圆柱轴出现干涉的问题。
支撑部62与转动臂70之间可采用焊接的方式进行固定。转动臂70可通过螺栓与壳体400固定连接。
当显示模组100与壳体400连接时，同时也遮盖住了转轴500朝向显示模组100的一侧。一般所采用的支撑件20在与转轴500相对应时，过渡区212正对转轴500的支撑部62。而为了实现支撑件20与转轴500的连接，会在过渡区212设置OCA光学胶使其能够与转轴500的支撑部62进行粘接。但是，电子设备001在进行折叠时，为了克服支撑件20的反弹力，支撑部62会对过渡区212提供支撑力。而支撑部62所提供的力会通过过渡区212传递至显示面板10，造成显示面板10上存在光影折痕的情况。另外，OCA光学胶也存在发生蠕变的可能，会进一步加重光影折痕的程度。
本申请中在过渡区212取消了粘胶35的设置，并在过渡区212设置多个第二通孔2121，可减小弯折区21的反弹力，并且弯折区21所受的力较为均衡，可无需通过支撑部62对支撑件20施加力，从而原本支撑部62通过弯折区21传递到显示面板10处的力消失，以改善显示面板10上光影折痕的问题。
这种电子设备001中两个壳体400通过转轴500转动，使得壳体400具有不同的转动角度。壳体400连接显示模组100，当两个壳体400转动至折叠状态时，可带动显示模组100进行折叠。显示模组100中所采用的支撑件20，通过在过渡区212设置多个第二通孔2121，使得整个弯折区21在折叠后能够呈水滴状态。该支撑件20相较于一般的在过渡区212设置OCA光学胶的粘接件，能够减小30％的反弹力，且改善光影折痕的效果可提升30％。另外，采用该支撑件20的显示模组100能够应用与弯折半径小、弯折弧长小且倾斜夹角小的应用场景。

Claims (13)

  1. 一种支撑件，用于可折叠电子设备中，其特征在于，包括：
    平面区；
    弯折区，包括依次连接的第一弧形区、过渡区和第二弧形区，所述第二弧形区远离所述第一弧形区的侧边连接所述平面区，所述过渡区对应所述电子设备中转轴的支撑部，且相对于所述支撑部能够移动；
    所述第一弧形区设有多个第一通孔，所述过渡区设有多个第二通孔，所述第二弧形区设有多个第三通孔；
    所述第一弧形区朝向所述第二弧形区的方向为宽度方向，垂直于所述宽度方向的为长度方向；
    多个所述第一通孔的长度沿所述宽度方向逐渐减小；
    多个所述第二通孔中部分第二通孔的长度沿所述宽度方向逐渐减小，另一部分第二通孔的长度沿所述宽度方向相同，
    多个所述第三通孔的长度沿所述宽度方向相同。
  2. 如权利要求1所述的支撑件，其特征在于，多个所述第一通孔沿所述长度方向分成若干列，相邻两列所述第一通孔沿所述宽度方向交错设置。
  3. 如权利要求1所述的支撑件，其特征在于，多个所述第二通孔沿所述长度方向分成若干列；
    部分长度逐渐减小的所述第二通孔沿所述宽度方向交错设置；
    另一部分长度相同的所述第二通孔沿所述宽度方向并排设置宽度方向。
  4. 如权利要求1所述的支撑件，其特征在于，多个所述第三通孔沿所述宽度方向分成若干排，相邻两排所述第三通孔交错设置。
  5. 如权利要求1至4中任一项所述的支撑件，其特征在于，沿所述宽度方向，所述第一通孔、所述第二通孔和所述第三通孔的孔宽为W，0.01mm≤W≤50mm。
  6. 如权利要求1至4中任一项所述的支撑件，其特征在于，沿所述宽度方向，任意相邻的两所述第一通孔、两所述第二通孔、两所述第三通孔、所述第一通孔与所述第二通孔、所述第二通孔与所述第三通孔之间的孔间距为D1，0.01mm≤D1≤50mm。
  7. 如权利要求1至4中任一项所述的支撑件，其特征在于，沿所述长度方向，相邻的两所述第一通孔、两所述第二通孔以及两所述第三通孔之间的孔间距为D2，0.01mm≤D2≤10mm。
  8. 如权利要求1至4中任一项所述的支撑件，其特征在于，沿所述长度方向，所述第一通孔、所述第二通孔和所述第三通孔为孔长为L，0.01mm≤L≤10mm。
  9. 如权利要求1所述的支撑件，其特征在于，沿垂直于所述支撑件的方向观察，所述第一通孔、所述第二通孔和所述第三通孔为圆形、椭圆形、跑道形或矩形。
  10. 一种显示模组，用于可折叠电子设备，其特征在于，包括：
    显示面板、保护层以及如权利要求1至9中任一项所述的支撑件；
    所述支撑件、所述显示面板和所述保护层层叠设置，所述支撑件设于所述显示面板的第一面，所述保护层设于所述显示面板背离所述第一面的第二面。
  11. 一种电子设备，其特征在于，包括两个壳体、转轴和如权利要求10中所述的显示模组；
    两个所述壳体可转动连接；
    所述转轴的相对两侧分别固定连接两个所述壳体；
    所述显示模组包括与所述弯折区相连接的两所述平面区，两所述平面区对称设于所述弯折区的两侧，每一所述平面区连接一所述壳体。
  12. 如权利要求11所述的电子设备，其特征在于，所述转轴包括固定件、连接件和转动臂；
    所述固定件与所述连接件可转动连接，所述连接件与所述转动臂固定连接，所述转动臂与所述壳体固定连接。
  13. 如权利要求12所述的电子设备，其特征在于，所述固定件包括弧形块，所述连接件包括支撑部和与所述支撑部连接的连接部，所述连接部设有弧形槽；
    所述弧形块可滑动地设于所述弧形槽内，所述连接件通过所述支撑部与所述转动臂固定连接。
PCT/CN2023/129391 2022-11-04 2023-11-02 支撑件、显示模组及电子设备 WO2024094134A1 (zh)

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