WO2020221064A1 - 一种支撑结构及可折叠显示装置 - Google Patents

一种支撑结构及可折叠显示装置 Download PDF

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Publication number
WO2020221064A1
WO2020221064A1 PCT/CN2020/085932 CN2020085932W WO2020221064A1 WO 2020221064 A1 WO2020221064 A1 WO 2020221064A1 CN 2020085932 W CN2020085932 W CN 2020085932W WO 2020221064 A1 WO2020221064 A1 WO 2020221064A1
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WO
WIPO (PCT)
Prior art keywords
bending
support
flexible screen
display device
foldable display
Prior art date
Application number
PCT/CN2020/085932
Other languages
English (en)
French (fr)
Inventor
李银
马春军
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to US17/606,178 priority Critical patent/US20220217857A1/en
Priority to EP20798686.0A priority patent/EP3944599A4/en
Priority to KR1020217035921A priority patent/KR102617321B1/ko
Publication of WO2020221064A1 publication Critical patent/WO2020221064A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0266Details of the structure or mounting of specific components for a display module assembly
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/301Indicating 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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637Details related to the display arrangement, including those related to the mounting of the display in the housing
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1641Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216Foldable in one direction, i.e. using a one degree of freedom hinge
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0266Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/0017Casings, cabinets or drawers for electric apparatus with operator interface units

Definitions

  • This application relates to the technical field of foldable display devices, and in particular to a supporting structure and a foldable display device.
  • Foldable flexible screen mobile phones are an important trend in the development of modern mobile phones.
  • the flexible screen usually includes a flat area and a bending area connecting two adjacent flat areas, corresponding to the structure of the foldable flexible screen.
  • the support structure of the foldable flexible screen mobile phone includes A plane support portion opposite to the plane area and a bending support portion opposite to the bending area.
  • the flexible screen is glued and fixed to the above-mentioned supporting structure
  • the bending support portion includes a middle frame and a flexible supporting bar injection molded with the middle frame, and the flexible screen is glued and fixed to the above-mentioned flexible supporting bar.
  • the bending support part and the bending area of the flexible screen are bent or unfolded at the same time.
  • the bending support part and the flexible screen have a certain thickness.
  • the flexible screen needs to be stretched and contracted, which easily causes the flexible screen and the bending support part to degummed, resulting in poor product.
  • the present application provides a support structure of a foldable display device and a foldable display device, which improve the connection strength between a flexible screen and a bending support portion, and improve the product quality of the foldable display device.
  • the present application provides a support structure of a foldable display device, and the support structure of the foldable display device is used to support a flexible screen of the foldable display device.
  • the flexible screen includes two types of areas, namely a flat area and a bending area.
  • the flexible screen includes at least two flat areas and a bending area connected between the two flat areas; correspondingly, for Provide reliable support for the flexible screen.
  • the support structure of the foldable display device includes two types of parts: a flat support part and a bending support part.
  • the flat support part is opposite to the flat area and supports the flat area of the flexible screen.
  • the bending support The part is opposite to the bending area and supports the bending area of the flexible screen.
  • the bending support part includes two parts, namely a bending frame and a flexible support bar connected with the above bending frame, and the flexible support bar directly contacts the flexible screen.
  • the flexible screen When the flexible screen is unfolded, it is used to support the bending area of the flexible screen.
  • the flexible support bar is driven to fold.
  • the flexible support bar includes at least two parts, a support part and a plurality of spaced connecting parts fixed to the support part, wherein the support part is connected to the flexible screen, and the plurality of connection parts are located at the support part away from the flexible screen.
  • the flexible screen is glued and fixed to the support part of the flexible support bar.
  • the support part and the flexible screen are bent together, and The support part is connected to the bending frame by a plurality of connecting parts distributed at intervals.
  • the relative displacement between the support part and the bending frame occurs, so that the relative displacement between the support part and the flexible screen is not easy to occur, and the The strength of the connection between the support part and the flexible screen reduces the risk of degumming between the flexible screen and the flexible support bar, and improves the product quality of the foldable display device.
  • the connecting portion may be a slot structure
  • the bending frame has a chuck head that engages with the slot structure.
  • the connecting portion may be a fixed protrusion
  • a plurality of fixing protrusions are located on a side of the supporting portion away from the flexible screen, and an end of the plurality of fixing protrusions away from the supporting portion is connected to the bending frame, Therefore, the connection between the flexible support bar and the bending frame has a certain distance from the support part.
  • the flexible screen is glued and fixed to the support part of the flexible support bar.
  • the support part and the flexible screen are bent together, and there is displacement between the fixed protrusion of the support part and the bending frame Therefore, the relative displacement between the supporting part and the flexible screen can be prevented, and the strength of the connection between the supporting part and the flexible screen can be improved.
  • the fixing protrusion of the flexible support bar is clamped to the bending frame.
  • the fixing protrusion has a buckle
  • the bending frame has a bayonet that fits with the buckle of the fixing protrusion one by one
  • the buckle and the bayonet can be connected by a snap
  • the buckle of the fixing protrusion extends into the card ⁇ and snapped with the bayonet.
  • the flexible support strip is flexible, so that the buckle can be contracted and deformed to pass through the bayonet, and then rebound after passing through the bayonet, thereby snapping with the bayonet.
  • connection mode of the buckle and the bayonet also includes different embodiments.
  • the bayonet may be a groove or a through hole.
  • the notch of the groove has a card edge, that is, the size of the notch of the groove is smaller than the size of the bottom area of the groove.
  • the buckle shrinks through the card edge, it rebounds and is contained in the groove , And the buckle is clamped with the edge of the notch to complete the clamping between the flexible support bar and the bending frame.
  • the groove has a groove wall, so the structure is relatively regular, and the fixed protrusion is not easy to occur with other structures. The structure interferes, and the groove can also protect the fixing protrusion, so that the fixing protrusion is not easily damaged.
  • the buckle of the fixed protrusion shrinks and passes through the through hole, rebounds and engages with the edge of the through hole to complete the clamping between the flexible support bar and the bending frame, and the structure of the through hole is relatively simple , So the production process can be simplified.
  • the end of the fixing protrusion of the flexible support bar away from the support portion is fixed to the bending frame.
  • the bending frame includes mounting parts adapted to the fixing protrusions one by one, and the fixing protrusions are fixed to the mounting parts, thereby completing the installation and connection of the flexible support bar and the bending frame.
  • the installation part has an installation hole.
  • the fixing protrusion passes through the installation hole of the installation part and is fixed to the installation part, so that the hole wall of the installation hole can make a certain fixed protrusion. Limit the position so that the area where the fixing protrusion and the mounting hole are fixedly connected is not easy to disengage.
  • the above-mentioned fixed connection of the fixing protrusion and the bending frame also includes different embodiments.
  • the fixing protrusion can be glued and fixed with the mounting part.
  • the process of this solution is relatively simple; the fixing protrusion can also be heat-melted in the installation.
  • the connection effect is relatively stable and it is not easy to fall off.
  • the shape of the above-mentioned connecting portion is not specifically limited.
  • the connecting portion may be a strip-shaped connecting portion or a point-shaped connecting portion, which can be selected according to actual product requirements.
  • the connecting portion when the connecting portion is a strip-shaped connecting portion, the strip-shaped connecting portion extends along the extension direction of the flexible support strip, and a plurality of strip-shaped connecting portions are arranged parallel to each other. Specifically, when the foldable display device is folded, the folding direction is perpendicular to the extension direction of the flexible support bar. Therefore, in this technical solution, the strip-shaped connecting portion itself does not need to be bent significantly, and the gap between the parallel strip-shaped connecting portions The area can be bent to a larger extent, which is convenient for bending operation, and is not easy to damage the strip-shaped connection part, thereby increasing the service life.
  • the connecting portion is a point-shaped connecting portion
  • the point-shaped connecting portion is arranged in a matrix of the supporting portion. On the one hand, it can provide a more reliable connection relationship.
  • the matrix-arranged point-shaped connection There is a strip-shaped gap between the parts, which is convenient for the folding operation of the foldable display device.
  • the flexible screen may have one bending area, or two or more bending areas.
  • the support structure of the foldable display device in the present application may include one bending support portion, or may have two bending support portions. As long as the foldable display device includes the bending support portion, the technical solution of the present application can be adopted to improve the connection strength between the flexible screen and the bending support portion and improve the product quality of the foldable display device.
  • the present application also provides a foldable display device, which includes a flexible screen and the support structure of the foldable display device in any of the above technical solutions.
  • the bending support part of the support structure includes a flexible support bar and a bending frame, and the distal end of the connection part of the flexible support bar is fixedly connected to the bending frame, so that there can be a space for relative movement between the flexible support bar and the bending frame
  • the foldable display device is bent, the flexible screen can be firmly connected to the support part of the support bar, and the problem of degumming is not easy to occur, and the product quality of the foldable display device is high.
  • the folding direction of the above-mentioned foldable display device is not limited, and the foldable display device can be folded toward the direction where the flexible screen is located, that is, after folding, the flexible screen is located between the supporting shells of the foldable display device; or In another specific embodiment, the foldable display device can be folded in a direction away from the flexible screen, that is, after folding, the flexible screen is located outside the support housing of the foldable display device.
  • FIG. 1 is a top view of a foldable display device in an embodiment of the application
  • FIG. 2 is a schematic cross-sectional view of a foldable display device in an embodiment of the application
  • FIG. 3 is a schematic diagram of a folded state of a foldable display device in an embodiment of the application.
  • FIG. 4 is a schematic diagram of an unfolded state of a foldable display device in an embodiment of the application
  • FIG. 5 is a schematic cross-sectional structure diagram of a bending support part in an embodiment of the application.
  • FIG. 6 is a schematic cross-sectional structure diagram of another bending support part in an embodiment of the application.
  • FIG. 7 is a schematic cross-sectional structure diagram of another bending support part in an embodiment of the application.
  • FIG. 8 is a schematic cross-sectional structure diagram of another bending support part in an embodiment of the application.
  • FIG. 9 is a schematic cross-sectional structure diagram of another bending support part in an embodiment of the application.
  • FIG. 10 is a schematic cross-sectional structure diagram of another bending support part in an embodiment of the application.
  • FIG. 11 is a schematic cross-sectional structure diagram of another bending support part in an embodiment of the application.
  • FIG. 12 is a schematic cross-sectional structure diagram of another bending support part in an embodiment of the application.
  • FIG. 13 is a schematic structural diagram of a supporting structure in an embodiment of the application.
  • FIG. 15 is a schematic structural diagram of a foldable display device in an embodiment of the application.
  • FIG. 16 is a schematic diagram of another foldable display device in a folded state in an embodiment of the application.
  • the supporting structure of the foldable display device is applied to foldable mobile terminals, such as foldable mobile phones, foldable electronic paper books, and the like.
  • the flexible screen of the mobile terminal is also folded.
  • the flexible screen includes two types of areas, namely: a flat area and a bending area connecting two adjacent flat areas
  • the supporting structure of the foldable display device includes a plane supporting portion and a bending supporting portion, the plane supporting portion is opposite to the above-mentioned plane area, and the bending supporting portion is opposite to the above-mentioned bending area.
  • the bending area of the flexible screen needs to be folded together with the bending support portion supporting the bending area.
  • the bending area of the flexible screen and the bending support portion supporting the bending area are also unfolded together.
  • both the flexible screen and the bending support have a certain thickness, and the bending support is an integrated structure, there will be a certain amount between the flexible screen and the bending support in the bending area. Relative displacement is likely to cause the risk of degumming. Therefore, it is necessary to design a support structure of a foldable display device to reduce the degumming risk of the flexible screen and the bending support portion and improve product quality.
  • Figure 1 shows a top view of a foldable display device in an embodiment of the present application
  • Figure 2 shows a schematic cross-sectional view of a foldable display device in an embodiment of the present application
  • Fig. 3 shows a schematic diagram of a folded state of a foldable display device in an embodiment of the present application
  • Fig. 4 shows a schematic diagram of an unfolded state of a foldable display device in an embodiment of the present application.
  • the supporting structure of the foldable display device in the embodiment of the present application is applied to the foldable display device shown in the figure, and the supporting structure 2 is used to support the flexible screen 1 of the foldable display device.
  • the foldable display device includes a flexible screen 1 and a supporting structure 2.
  • the supporting structure 2 includes an adhesive step 21.
  • the flexible screen 1 has a display panel 11 and a cover plate 12 that are stacked. On the edge of the flexible screen 1, the cover plate 12 Extend the edge of the display panel 11 by a set distance, so that the cover 12 can be overlapped and fixed to the sticking step 21 of the supporting structure 2 to form a sticking area 13 at the edge of the flexible screen 1.
  • the flexible screen 1 includes at least two flat areas 14 (in the figure, two flat areas 14 are taken as an example), and there is a bending area 15 between any two adjacent flat areas 14.
  • the foldable display device corresponding to the above-mentioned bending zone 15 has a bending support portion 23.
  • the bending support portion has a flexible support bar on one side close to the flexible screen.
  • the flexible support bar is made of a flexible material, such as rubber, which has a certain degree of flexibility. When bending the flexible screen, the flexible support bar can be bent together with the flexible screen.
  • FIG. 5 shows a schematic cross-sectional structure diagram of a bending support part in an embodiment of the present application
  • the support structure 2 in the embodiment of the present application includes a plane support part 22 and a bending The supporting portion 23.
  • the flat supporting portion 22 is opposite to the flat area 14 of the flexible screen 1 and used to support the flat area 14, and the bending support portion 23 is opposite to the bending area 15 of the flexible screen 1 and used to support the bending District 15.
  • the bending support portion 23 includes a bending frame 231 and a flexible support bar 232 connected to the bending frame 231, and the flexible support bar 232 is in contact with the flexible screen 1 to support the bending portion of the flexible screen 1.
  • the flexible support bar 232 includes a support portion 2321 and a plurality of spaced connecting portions 2322 fixed to the support portion 2321, the support portion 2321 is in contact with the flexible screen 1, and the connection portion 2322 is located at the support portion 2321 away from the flexible screen.
  • the end of the connecting portion 2322 away from the supporting portion 2321 is connected to the bending frame 231, and there is a certain interval between the plurality of connecting portions 2322.
  • the end of the connecting portion 2322 away from the supporting portion 2321 is connected to the bending frame 231, so that at least the connecting point of the connecting portion 2322 and the bending frame 231 has a certain distance from the supporting portion 2321.
  • the connecting portion 2322 is a flexible connecting portion, and there is a certain interval between the plurality of connecting portions 2322. Therefore, when the foldable display device is folded, the flexible screen 1 affixed to the supporting portion 2321 is bent together with the supporting portion 2321, and There is a relative displacement between the supporting portion 2321 and the bending frame 231, so that the relative displacement between the supporting portion 2321 and the flexible screen 1 is not easily generated, the strength of the connection between the supporting portion 2321 and the flexible screen 1 is improved, and the connection between the flexible screen 1 and the flexible screen 1 is reduced.
  • the risk of degumming between the flexible support bars 232 improves the product quality of the foldable display device.
  • the flexible screen has a flat area and a bending area as an example for description. Accordingly, the support structure has a flat support portion and a bending support portion.
  • This embodiment is only used to implement the implementation of this application. The specific scheme of the case.
  • the support structure in the technical solution of the present application is applicable to all solutions in which the flexible screen has a bending area, and the support structure correspondingly has a bending support portion.
  • the structure of the part of the flexible screen other than the bending area is not limited. For example, it may be a curved area or any shape or state, and the supporting structure may be adapted to it.
  • connecting portion 2322 there are many ways to connect the connecting portion 2322 to the bending frame 231.
  • the above-mentioned connecting portion 2322 can be clamped to the bending frame 231 or can be fixedly connected, and the structure of the connecting portion 2322 can be
  • the slot 2323 may also be a fixing protrusion 2326.
  • FIGS. 5 to 7 FIG. 6 shows a schematic cross-sectional structure diagram of another bending support part in an embodiment of the present application; FIG. 7 shows a cross-section of another bending support part in an embodiment of the present application Schematic.
  • the above-mentioned connecting portion 2322 is clamped with the bending frame 231, the connecting portion 2322 is a card slot 2323, and the bending frame 231 includes a card head 2312, and the card head 2312 extends into the card slot 2323, and Connect with the above-mentioned card slot 2323.
  • the connecting portion 2322 of the flexible support bar 232 is made of flexible material. Therefore, the card slot 2323 is also a flexible card slot 2323.
  • the flexible card slot 2323 has a slot 2324, which is close to the side of the bending frame 231 It has a clamping wall 2325, the bending frame 231 has a clamping head 2312, the clamping head 2312 has a head 2313 and a clamping neck 2314, the radial dimension of the head 2313 of the clamping head 2312 is greater than the radial dimension of the clamping neck 2314, and the clamping head The head 2313 of the 2312 is close to one side of the flexible support bar 232.
  • the head 2313 of the chuck 2312 passes through the card wall 2325 area of the card slot 2323, and the card wall 2325 elastically expands so that the head 2313 of the chuck 2312 passes through the area where the card wall 2325 is located and enters the card slot 2323.
  • the head 2313 of the card head 2312 is engaged with the card wall 2325 of the slot 2324.
  • the bending support portion 23 is bent, and the support portion 2321 of the flexible support bar 232 and the bending bracket are connected by the slot 2323 and the clip 2312, so that when the foldable display device is bent, the slot 2323 occurs Therefore, the supporting portion 2321 and the flexible screen 1 fixedly connected to the supporting portion 2321 are bent at the same time, and relative displacement between the two is not easy to occur. Therefore, the strength of the connection between the supporting portion 2321 and the flexible screen 1 can be improved. The risk of degumming between the flexible screen 1 and the flexible support bar 232 is reduced, and the product quality of the foldable display device is improved.
  • the cross-sectional shape of the chuck and the card slot is not specifically limited, and the clamping structure of the chuck and the card slot is not specifically limited.
  • the cross-sectional shape of the chuck is rectangular, and the chuck is clamped to the plane of the card slot; as shown in Figure 6, in another embodiment, the cross-sectional shape of the chuck is elliptical, and the chuck is clamped to the curved surface of the card slot.
  • the chuck has an area that gradually expands in size along the direction away from the bottom of the slot, which facilitates the installation of the chuck and the slot; as shown in FIG. 7, in another specific embodiment, the cross-sectional shape of the chuck is triangular In this embodiment, the size of the chuck is gradually enlarged along the direction away from the bottom of the card slot, which is convenient for installation.
  • FIG. 8 shows a schematic cross-sectional structure diagram of another bending support portion in an embodiment of the present application
  • FIG. 9 shows a cross-sectional structure diagram of another bending support portion in an embodiment of the present application
  • Schematic diagram shows a schematic cross-sectional structure diagram of another bending support part in an embodiment of the present application.
  • the above-mentioned connecting portion 2322 may be a fixing protrusion 2326, and the end of the fixing protrusion 2326 away from the supporting portion 2321 is connected to the bending frame 231. Therefore, between the connecting portion 2322 and the bending frame 231 There is a certain distance between the connecting point and the supporting portion 2321. This distance is connected by the fixing protrusion 2326.
  • the fixing protrusion 2326 is flexible and has good flexibility, when the foldable display device is folded, the bending support portion 23 is bent, and the fixing protrusion 2326 is bent, thereby
  • the supporting portion 2321 and the flexible screen 1 fixedly connected to the supporting portion 2321 can be bent at the same time, and relative displacement between the two is not easy. Therefore, the strength of the connection between the support portion 2321 and the flexible screen 1 can be increased, the risk of degumming between the flexible screen 1 and the flexible support bar 232 can be reduced, and the product quality of the foldable display device can be improved.
  • the fixing protrusion 2326 may have a buckle, the bending frame 231 has a bayonet 2315, and the buckle and the bayonet 2315 are adapted one by one, that is, both Can be connected by card.
  • the buckle is flexible.
  • the buckle can be inserted into the bayonet 2315 of the bending frame 231.
  • the buckle passes through the bayonet 2315, it can be contracted and passed After the bayonet 2315, the buckle returns to its original shape and can be engaged with the bayonet 2315, so that the end of the fixing protrusion 2326 away from the supporting portion 2321 is connected to the bending frame 231.
  • the bayonet 2315 of the fixing protrusion 2326 is inserted into the bayonet 2315 of the bending frame 231 to complete the installation. Therefore, the installation process is relatively simple.
  • the cross-sectional shape of the buckle and the bayonet is not specifically limited, and the clamping structure of the buckle and the bayonet is also not specifically limited.
  • the cross-sectional shape of the buckle is rectangular, and the buckle is clamped with the plane of the bayonet; as shown in FIG. 6, in another embodiment, the cross-sectional shape of the buckle is elliptical, and the buckle is connected to the curved surface of the bayonet.
  • the buckle has an area that gradually expands in size along the direction away from the bottom of the bayonet, which facilitates the installation of the buckle and the bayonet; as shown in FIG. 7, in another specific embodiment, the cross-sectional shape of the buckle is triangular The size of the buckle in this embodiment is gradually enlarged along the direction away from the bottom of the bayonet, which is convenient for installation.
  • the above-mentioned connection method of the buckle and the bayonet 2315 also includes different embodiments.
  • the structure and shape of the bayonet 2315 are not specifically limited.
  • the bayonet 2315 may be a groove 2316 or a through hole 2318.
  • the bayonet 2315 is a groove 2316.
  • the notch of the groove 2316 has a clamping edge 2317.
  • the buckle can pass through the clamping edge 2317 and extend into the groove 2316. And snap with the card edge 2317.
  • the buckle is a flexible buckle. Therefore, when passing through the rim 2317, the buckle shrinks, enters the groove 2316 and then returns to its original shape, and can be engaged with the rim 2317 to complete the installation.
  • the buckle and the groove 2316 are clamped, so that the two can also have a certain displacement at the connection point, so as to facilitate absorbing the deformation of the bending support 23, and the connection method is convenient for installation.
  • the buckle is located in the groove 2316, and the groove 2316 can protect the buckle, and the rest of the structure is not prone to scratching or structural interference of the buckle.
  • FIG. 11 shows a schematic cross-sectional structure diagram of another bending support portion in an embodiment of the present application.
  • the bayonet 2315 is a through hole 2318
  • the buckle passes through the through hole 2318, and then engages with the edge of the through hole 2318.
  • the installation process of the buckle and the through hole 2318 is also more convenient, and the two can also have a certain displacement at the connection point, so as to facilitate the absorption of the deformation of the bending support 23.
  • the structure of the through hole 2318 is relatively simple, so that the manufacturing process of the bending frame 231 can be simplified, and the manufacturing cost of the bending frame 231 can be reduced.
  • the fixing protrusion 2326 may also be fixedly connected to the bending frame 231.
  • the bending frame 231 may include mounting portions 2319 that are adapted to the fixing protrusions 2326 one by one.
  • the end of the riser 2326 away from the supporting portion 2321 is fixed to the mounting portion 2319.
  • the end of the fixing protrusion 2326 far away from the support portion 2321 is fixedly connected to the bending frame 231.
  • the connection point between the fixing protrusion 2326 and the bending frame 231 and the support portion 2321 utilizes flexibility.
  • the fixing protrusions 2326 are connected so as to absorb the deformation of the bending support 23.
  • the connection strength between the fixing protrusion 2326 and the bending frame 231 is relatively high.
  • the mounting portion 2319 has a mounting hole 2320
  • the fixing protrusion 2326 passes through the mounting hole 2320, and then is fixed to the bending frame 231, in this embodiment, the fixing protrusion 2326 penetrates Through the mounting hole 2320, the wall of the mounting hole 2320 can protect the fixing protrusion 2326, so as to improve the service life of the fixing protrusion 2326.
  • the hole wall of the mounting hole 2320 can limit the fixing protrusion 2326 to prevent excessive displacement between the fixing protrusion 2326 and the bending frame 231, so as to improve the support between the fixing protrusion 2326 and the bending frame 231. Connection strength.
  • the fixing connection between the fixing protrusion 2326 and the bending frame 231 is not limited.
  • the fixing protrusion 2326 is pasted and fixed to the mounting portion 2319, which is more costly. Low, the process is relatively simple.
  • the fixing protrusion 2326 is fixed to the mounting portion 2319 by heat fusion, and the connection and fixing strength of this connection method is relatively high, and it is not easy to fall off.
  • the shape of the connecting portion is not limited.
  • the connecting portion may be a strip-shaped connecting portion or a point-shaped connecting portion, and the shape of the connecting portion may be selected according to actual product requirements.
  • FIG. 13 shows a schematic structural diagram of a supporting structure in an embodiment of the present application.
  • the connecting portion 2322 is a strip-shaped connecting portion 2327
  • the flexible supporting strip 232 requires a small number of strip-shaped connecting portions 2327
  • the structure of the flexible supporting strip 232 is relatively simple, so that the flexible supporting strip 232 is manufactured The process is simple and the production cost is low.
  • the flexible support strip 232 has a plurality of strip-shaped connecting portions 2327, the strip-shaped connecting portions 2327 extend along the extension direction of the flexible support strip 232, and the plurality of strip-shaped connecting portions 2327 are parallel
  • the folding direction is perpendicular to the extension direction of the flexible support bar 232. Therefore, in the embodiment of the present application, the extension direction of the strip-shaped connecting portion 2327 is perpendicular to the folding direction of the flexible support bar 232.
  • the fold line of the foldable display device is parallel to the area between the strip-shaped connecting portions 2327, so that when the foldable display device is folded, the area between the parallel strip-shaped connecting portions 2327 can be bent to a greater extent, thereby facilitating bending Folding operation, and it is not easy to damage the strip connecting part 2327, thereby improving the service life.
  • the extension direction of the flexible support strip 232 is the A direction
  • the folding direction is the B direction.
  • FIG. 14 shows a schematic structural diagram of another supporting structure in an embodiment of the present application.
  • the connecting portion 2322 is a point-shaped connecting portion 2328
  • the point-shaped connecting portion 2328 is arranged in a matrix on the supporting portion 2321.
  • a plurality of matrix-arranged point-shaped connecting portions 2328 can be A more reliable connection relationship is provided.
  • strip-shaped gaps can be formed between the dot-shaped connection portions 2328 arranged in a matrix, which facilitates the folding operation of the foldable display device.
  • the cross-sectional shape of the point-shaped connecting portion along a direction parallel to the flexible screen 1 may be a circle, a square or a polygon, and the point-shaped connecting portion has a relatively regular shape and is easy to manufacture.
  • the flexible screen of the foldable display device may include one bending area or two or more bending areas.
  • the supporting structure of the foldable display device may include only one bending support
  • the part may also include two or more bending support parts.
  • the foldable display device includes several bending areas.
  • it may include the same number of bending support parts.
  • the flexible screen of the foldable display device and the bending support parts are not easily degummed, thereby improving the The connection strength between the flexible screen of the foldable display device and the bending support portion is high, and the product quality of the foldable display device is good.
  • FIG. 15 shows a schematic structural diagram of a foldable display device in an embodiment of the present application.
  • the flexible screen 1 of the foldable display device shown in the figure includes three flat areas 14 and two bending areas. 15.
  • FIG. 16 shows a schematic diagram of another foldable display device in a folded state in an embodiment of the present application.
  • the present application also provides a foldable display device, which includes a flexible screen 1 and the support structure 2 of the foldable display device in any of the above technical solutions.
  • the supporting structure 2 includes a bending support portion 23 supporting the bending area 15 of the flexible screen 1, and a flat support portion 22 supporting the plane area 14 of the flexible screen 1.
  • the bending support portion 23 includes a flexible support bar 232 and a bending The frame 231, the flexible support bar 232 includes a support portion 2321 and a connecting portion fixed to the support portion 2321 on the side away from the flexible screen 1.
  • the distal end of the connecting portion is fixedly connected to the bending frame 231, so that the flexible support bar 232 is connected to the bending There may be a space for relative movement between the skeletons 231.
  • the flexible screen 1 can be firmly connected to the supporting part of the support bar, and the problem of degumming is unlikely to occur.
  • the product quality of the foldable display device is high.
  • the folding direction of the above-mentioned foldable display device is not limited. As shown in FIG. 16, the foldable display device can be folded toward the direction where the flexible screen 1 is located, that is, after folding, the flexible screen 1 is located on the foldable display device. Or, as shown in Figure 3, in another specific embodiment, the foldable display device can be folded away from the flexible screen 1, that is, after folding, the flexible screen 1 is located on the foldable display device Support the outside of the housing.

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Abstract

本申请提供了一种支撑结构及可折叠显示装置,支撑结构用于支撑柔性屏,该柔性屏包括平面区和连接于平面区之间的弯折区;可折叠显示装置的支撑结构包括平面支撑部和弯折支撑部,平面支撑部支撑柔性屏的平面区,弯折支撑部支撑柔性屏的弯折区。弯折支撑部弯折骨架和与上述弯折骨架连接的柔性支撑条,该柔性支撑条直接与柔性屏接触。柔性支撑条包括支撑部和固定于支撑部的多个间隔分布的连接部,支撑部与柔性屏连接,连接部位于支撑部远离柔性屏的一侧,且多个连接部远离支撑部的一端与弯折骨架连接。

Description

一种支撑结构及可折叠显示装置
本申请要求在2019年4月30日提交中国国家知识产权局、申请号为201910363515.0的中国专利申请的优先权,发明名称为“一种支撑结构及可折叠显示装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及到可折叠显示装置技术领域,尤其涉及到一种支撑结构及可折叠显示装置。
背景技术
可折叠柔性屏手机是现代手机发展的重要趋势,柔性屏通常包括平面区和连接相邻两个平面区的弯折区,对应于可折叠柔性屏的结构,可折叠柔性屏手机的支撑结构包括与上述平面区相对的平面支撑部和与上述弯折区相对的弯折支撑部。
现有技术中,柔性屏粘贴固定于上述支撑结构,弯折支撑部包括中间骨架和与该中间骨架注塑成型的柔性支撑条,柔性屏粘贴固定于上述柔性支撑条。可折叠柔性屏手机使用过程中,在进行折叠和展开操作时,弯折支撑部和柔性屏的弯折区同时弯折或者展开,弯折支撑部和柔性屏具有一定厚度,在多次展开和弯折操作过程中,柔性屏需要进行拉伸和收缩,容易导致柔性屏与弯折支撑部脱胶,造成产品不良的情况。
发明内容
本申请提供了一种可折叠显示装置的支撑结构及可折叠显示装置,提高柔性屏与弯折支撑部的连接强度,提高可折叠显示装置的产品质量。
第一方面,本申请提供了一种可折叠显示装置的支撑结构,该可折叠显示装置的支撑结构用于支撑可折叠显示装置的柔性屏。其中,柔性屏包括两种类型的区域,分别为平面区和弯折区,具体的,柔性屏至少包括两个平面区和连接于上述两个平面区之间的弯折区;对应的,为了向柔性屏提供可靠的支撑,可折叠显示装置的支撑结构包括平面支撑部和弯折支撑部两种类型的部分,其中,平面支撑部与平面区相对且支撑柔性屏的平面区,弯折支撑部与弯折区相对且支撑柔性屏的弯折区。其中,弯折支撑部包括两部分,分别为弯折骨架和与上述弯折骨架连接的柔性支撑条,该柔性支撑条直接与柔性屏接触。当柔性屏展开时,用于支撑柔性屏的弯折区,当柔性屏折叠时,带动柔性屏进行折叠。该技术方案中,柔性支撑条至少包括两部分,分别为支撑部和固定于支撑部的多个间隔分布的连接部,其中,支撑部与柔性屏连接,多个连接部位于支撑部远离柔性屏的一侧,且多个连接部间隔分布,则连接部远离支撑部的一端与弯折骨架连接,从而柔性支撑条与弯折骨架的连接处与支撑部具有一定的距离。且相邻两个连接处之间也具有一定间距,可折叠显示装置中,柔性屏粘贴固定于柔性支撑条的支撑部,在可折叠显示装置折叠时,支撑部与柔性屏一起弯折,而支撑部利用间隔分布的多个连接部与弯折骨架连接,因此,弯折时,支撑部与弯折骨架之间产生相对位移,从而可以使支撑部与柔性屏之间不易产生相对位移,提高支撑部与柔性屏之间连接的强度,降低柔性屏与柔性支撑条之间脱胶的风险,提高可折叠显示装置的产品质量。
一种可选的技术方案中,连接部可以为卡槽结构,弯折骨架具有和该卡槽结构卡接的卡头。在安装该可折叠显示装置的支撑结构时,使卡头伸入该卡槽结构并进行卡接,从而可以实现柔性支撑条和弯折骨架之间的连接。在可折叠显示装置折叠时,支撑部与柔性屏一起弯 折,而支撑部的卡槽与弯折骨架之间产生位移,从而可以使支撑部与柔性屏之间不易产生相对位移,提高支撑部与柔性屏之间连接的强度,降低柔性屏与柔性支撑条之间脱胶的风险,提高可折叠显示装置的产品质量。
另一种可选的技术方案中,连接部可以为固定凸起,多个固定凸起位于支撑部远离柔性屏的一侧,且多个固定凸起远离支撑部的一端与弯折骨架连接,从而柔性支撑条与弯折骨架的连接处与支撑部具有一定的距离。可折叠显示装置中,柔性屏粘贴固定于柔性支撑条的支撑部,在可折叠显示装置折叠时,支撑部与柔性屏一起弯折,而支撑部的固定凸起与弯折骨架之间产生位移,从而可以使支撑部与柔性屏之间不易产生相对位移,提高支撑部与柔性屏之间连接的强度。
具体的,柔性支撑条的固定凸起与弯折骨架的连接方式有多种,一种连接方式中,柔性支撑条的固定凸起与弯折骨架卡接。具体的,固定凸起具有卡扣,弯折骨架具有与固定凸起的卡扣一一适配的卡口,上述卡扣和卡口可以卡合连接,上述固定凸起的卡扣伸入卡口并与卡口卡合。该方案便于安装,特别的,柔性支撑条具有柔性,因此,可以使卡扣收缩变形以通过卡口,通过卡口后回弹,从而与卡口卡接。该方案中,弯折支撑部弯折时,卡扣与卡口之间也可以产生少量位移,而卡扣与卡口的连接效果可以不受影响,因此,可以进一步的吸收可折叠显示装置折叠时,在折叠区域各层之间产生的相对位移,从而可以提高支撑部与柔性屏之间连接的强度,降低柔性屏与柔性支撑条之间脱胶的风险。
上述卡扣与卡口的连接方式中,还包括不同的实施方案,例如,卡口可以为凹槽,也可以为通孔。
当卡口为凹槽时,凹槽的槽口处具有卡沿,即凹槽槽口的尺寸小于凹槽槽底区域的尺寸,卡扣收缩穿过卡沿后,反弹容置于凹槽内部,且卡扣与槽口的卡沿卡接,以完成柔性支撑条与弯折骨架的卡接,该技术方案中,凹槽具有槽壁,因此结构较为规整,固定凸起不易与其他结构发生结构干涉,且凹槽还可以保护固定凸起,使固定凸起不易损坏。
当卡口为通孔时,固定凸起的卡扣收缩穿过通孔后,反弹并与通孔的边沿卡合,以完成柔性支撑条与弯折骨架的卡接,通孔的结构较为简单,因此可以简化制作工艺。
柔性支撑条与弯折骨架的另一种连接方式中,柔性支撑条的固定凸起远离支撑部的一端固定于弯折骨架。该方案中,弯折骨架包括与所述固定凸起一一适配的安装部,固定凸起固定于上述安装部,从而完成柔性支撑条与弯折骨架的安装连接。
为了提高固定凸起与安装部安装的稳定性,安装部具有安装孔,固定凸起穿过上述安装部的安装孔后固定于安装部,从而安装孔的孔壁可以对固定凸起进行一定的限位,以使固定凸起与安装孔部固定连接的区域不易脱开。
上述固定凸起与弯折骨架固定连接的方式中,还包括不同的实施方案,例如,固定凸起可以与安装部粘接固定,该方案工艺较为简单;也可以使固定凸起热融于安装部,该方案中,连接效果较为稳定,不易脱落。
具体的实施方式中,上述连接部的形状不做具体限制,例如,连接部可以为条状连接部,或者点状连接部,可以根据实际产品需求进行选择。
进一步的实施方式中,当连接部为条状连接部时,条状连接部沿柔性支撑条的延伸方向延伸,且多个条状连接部相互平行设置。具体的,可折叠显示装置折叠时,折叠方向垂直于柔性支撑条的延伸方向,因此,本技术方案中,条状连接部自身无需较大的弯折,相平行的条状连接部之间的区域可以较大幅度的弯折,从而便于弯折操作,且不易损坏条状连接部,从而提高使用寿命。
再一个实施方式中,当连接部为点状连接部时,点状连接部在支撑部矩阵排布设置,一方面,可以提供较为可靠的连接关系,另一方面,矩阵排布的点状连接部之间具有条状间隙,便于可折叠显示装置进行折叠操作。
可选的技术方案中,柔性屏可以具有一个弯折区,也可以具有两个甚至更多的弯折区。相应的,本申请中的可折叠显示装置的支撑结构可以包括一个弯折支撑部,也可以具有两个弯折支撑部。只要可折叠显示装置包括弯折支撑部就可以采用本申请的技术方案,以提高柔性屏与弯折支撑部的连接强度,提高可折叠显示装置的产品质量。
第二方面,本申请还提供了一种可折叠显示装置,该可折叠显示装置包括柔性屏以及上述任一技术方案中的可折叠显示装置的支撑结构。该支撑结构的弯折支撑部包括柔性支撑条和弯折骨架,柔性支撑条的连接部的远端与弯折骨架固定连接,从而,柔性支撑条与弯折骨架之间可以具有相对移动的空间,当可折叠显示装置弯折时,可以使柔性屏与支撑条的支撑部稳固连接,不易出现脱胶问题,可折叠显示装置的产品质量较高。
具体的实施方式中,上述可折叠显示装置的折叠方向不限,该可折叠显示装置可以朝向柔性屏所在的方向折叠,即折叠后,柔性屏位于可折叠显示装置的支撑壳体之间;或者,另一个具体的实施例中,可折叠显示装置可以朝远离柔性屏的方向折叠,即折叠后,柔性屏位于可折叠显示装置的支撑壳体的外侧。
附图说明
图1为本申请实施例中一种可折叠显示装置的俯视图;
图2为本申请实施例中一种可折叠显示装置的截面示意图;
图3为本申请实施例中一种可折叠显示装置折叠状态示意图;
图4为本申请实施例中一种可折叠显示装置展开状态示意图;
图5为本申请实施例中一种弯折支撑部的剖面结构示意图;
图6为本申请实施例中另一种弯折支撑部的剖面结构示意图;
图7为本申请实施例中另一种弯折支撑部的剖面结构示意图;
图8为本申请实施例中另一种弯折支撑部的剖面结构示意图;
图9为本申请实施例中另一种弯折支撑部的剖面结构示意图;
图10为本申请实施例中另一种弯折支撑部的剖面结构示意图;
图11为本申请实施例中另一种弯折支撑部的剖面结构示意图;
图12为本申请实施例中另一种弯折支撑部的剖面结构示意图;
图13为本申请实施例中一种支撑结构的结构示意图;
图14为本申请实施例中另一种支撑结构的结构示意图;
图15为本申请实施例中一种可折叠显示装置的结构示意图;
图16为本申请实施例中另一种可折叠显示装置折叠状态示意图。
附图标记:
1-柔性屏;
11-显示面板;
12-盖板;
13-粘贴区域;
14-平面区;
15-弯折区;
2-支撑结构;
21-粘贴台阶;
22-平面支撑部;
23-弯折支撑部;
231-弯折骨架;
2312-卡头;
2313-头部;
2314-卡颈;
2315-卡口;
2316-凹槽;
2317-卡沿;
2318-通孔;
2319-安装部;
2320-安装孔;
232-柔性支撑条;
2321-支撑部;
2322-连接部;
2323-卡槽;
2324-槽孔;
2325-卡壁;
2326-固定凸起;
2327-条状连接部;
2328-点状连接部。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请作进一步地详细描述。
为了方便理解本申请实施例提供的可折叠显示装置的支撑结构,下面首先说明一下其应用场景。该可折叠显示装置的支撑结构应用于可折叠的移动终端上,如可折叠的手机、可折叠的电纸书等。在移动终端折叠时,该移动终端的柔性屏也进行折叠,为了实现柔性屏的折叠,该柔性屏包括两种类型的区域,分别为:平面区以及连接相邻两个平面区的弯折区,可折叠显示装置的支撑结构包括平面支撑部和弯折支撑部,平面支撑部与上述平面区相对,弯折支撑部与上述弯折区相对。在柔性屏折叠时,需要柔性屏的弯折区和支撑上述弯折区的弯折支撑部一起折叠。在移动终端的柔性屏展开时,柔性屏的弯折区和支撑上述弯折区的弯折支撑部也一起展开。而在折叠和展开过程中,由于柔性屏和弯折支撑部均具有一定的厚度,且弯折支撑部为一体结构,因此,弯折区域的柔性屏与弯折支撑部之间会产生一定的相对位移,容易产生脱胶的风险,因此,就需要设计一种可折叠显示装置的支撑结构,以降低柔性屏与弯折支撑部脱胶的脱胶风险,提高产品质量。
如图1至图4所示,其中,图1示出了本申请实施例中一种可折叠显示装置的俯视图;图2示出了本申请实施例中一种可折叠显示装置的截面示意图;图3示出了本申请实施例中一种可折叠显示装置折叠状态示意图;图4示出了本申请实施例中一种可折叠显示装置展开 状态示意图。本申请实施例中的可折叠显示装置的支撑结构应用于图示的可折叠显示装置,该支撑结构2用于支撑可折叠显示装置的柔性屏1。如图所示,可折叠显示装置包括柔性屏1和支撑结构2,支撑结构2包括粘贴台阶21,柔性屏1具有叠置的显示面板11和盖板12,在柔性屏1边缘,盖板12延伸出显示面板11边缘设定距离,以使盖板12能够搭接且固定于支撑结构2的粘贴台阶21,从而形成位于柔性屏1边缘的粘贴区域13。该柔性屏1包括至少两个平面区14(图中以包括两个平面区14为例),任意相邻两个平面区14之间具有弯折区15,在可折叠显示装置处于折叠状态和展开状态时,上述平面区14保持展平状态;在可折叠显示装置处于折叠状态时,上述弯折区15处于弯折状态,在可折叠显示装置处于展开状态时,上述弯折区15处于展平状态。可折叠显示装置对应上述弯折区15具有弯折支撑部23,该弯折支撑部靠近柔性屏的一侧具有柔性支撑条,该柔性支撑条为柔性材质制作的,例如橡胶,具有一定的柔性,在弯折柔性屏时,柔性支撑条可以与柔性屏一起弯折。
请参考图3至图5所示,其中,图5示出了本申请实施例中一种弯折支撑部的剖面结构示意图;本申请实施例中的支撑结构2包括平面支撑部22和弯折支撑部23,上述平面支撑部22与柔性屏1的平面区14相对,用于支撑上述平面区14,上述弯折支撑部23与柔性屏1的弯折区15相对,用于支撑上述弯折区15。弯折支撑部23包括弯折骨架231和与上述弯折骨架231连接的柔性支撑条232,该柔性支撑条232与柔性屏1接触,以支撑柔性屏1的弯折部。具体的,该柔性支撑条232包括支撑部2321和固定于该支撑部2321的多个间隔分布的连接部2322,该支撑部2321与柔性屏1接触,该连接部2322位于支撑部2321远离柔性屏1的一侧,连接部2322远离支撑部2321的一端与弯折骨架231连接,且多个连接部2322之间具有一定间隔。该实施例中,连接部2322远离支撑部2321的一端与弯折骨架231连接,从而,至少连接部2322与弯折骨架231的连接点至支撑部2321之间具有一定的距离。而该连接部2322为柔性连接部,且多个连接部2322之间具有一定间隔,因此,当可折叠显示装置折叠时,粘贴于支撑部2321的柔性屏1与支撑部2321一起弯折,而支撑部2321与弯折骨架231之间产生相对位移,从而可以使支撑部2321与柔性屏1之间不易产生相对位移,提高支撑部2321与柔性屏1之间连接的强度,降低柔性屏1与柔性支撑条232之间脱胶的风险,提高可折叠显示装置的产品质量。
值得说明的是,本申请实施例中,以柔性屏具有平面区和弯折区为例进行说明,相应的,支撑结构具有平面支撑部和弯折支撑部,该实施方式仅作为实现本申请实施例的具体方案。本申请技术方案中的支撑结构适用于一切柔性屏具有弯折区的方案,支撑结构对应具有弯折支撑部。对于柔性屏除弯折区以外的部分的结构不做为限定,例如可以为曲面区或者任意形状或状态,支撑结构与其适配即可。
可选的实施例中,连接部2322与弯折骨架231的连接方式有多种,例如,上述连接部2322可以与弯折骨架231卡接,也可以固定连接,且连接部2322的结构可以为卡槽2323,也可以为固定凸起2326。如图5至图7所示,图6示出了本申请实施例中另一种弯折支撑部的剖面结构示意图;图7示出了本申请实施例中另一种弯折支撑部的剖面结构示意图。一个可选的实施例中,上述连接部2322与弯折骨架231卡接,连接部2322为卡槽2323,弯折骨架231包括卡头2312,该卡头2312伸入该卡槽2323内,并与上述卡槽2323卡接。该实施例中,柔性支撑条232的连接部2322为柔性材质,因此,卡槽2323也为柔性卡槽2323,该柔性卡槽2323具有槽孔2324,槽孔2324靠近弯折骨架231的一侧具有卡壁2325,弯折骨架231具有卡头2312,该卡头2312具有头部2313和卡颈2314,卡头2312的头部2313的径向尺寸大于卡颈2314的径向尺寸,且卡头2312的头部2313靠近柔性支撑条232的一侧。安装 时,将卡头2312的头部2313穿过卡槽2323的卡壁2325区域,卡壁2325弹性扩张使卡头2312的头部2313穿过卡壁2325所在的区域,进入该卡槽2323的槽孔2324,当卡颈2314与卡壁2325相对时,卡头2312的头部2313与槽孔2324的卡壁2325卡接。从而,当可折叠显示装置折叠时,弯折支撑部23进行弯折,柔性支撑条232的支撑部2321与弯折支架通过卡槽2323和卡头2312连接,从而弯折时,卡槽2323发生形变,因此,支撑部2321和与该支撑部2321固定连接的柔性屏1同时发生弯折,两者之间不易产生相对位移,因此,可以提高支撑部2321与柔性屏1之间连接的强度,降低柔性屏1与柔性支撑条232之间脱胶的风险,提高可折叠显示装置的产品质量。
如图5至图7所示,上述实施例中,卡头和卡槽的截面形状不做具体限制,卡头与卡槽的卡接结构也不做具体限制,如图5所示,一个实施例中,卡头的截面形状为矩形,卡头与卡槽平面卡接;如图6所示,另一个实施例中,卡头的截面形状为椭圆形,卡头与卡槽曲面卡接,该实施例中,卡头具有沿远离卡槽底部的方向尺寸逐渐扩大的区域,便于安装卡头与卡槽;如图7所示,再一个具体的实施例中,卡头的截面形状为三角形,该实施例卡头沿远离卡槽底部的方向尺寸逐渐扩大,便于安装。
请参考图8至图10,图8示出了本申请实施例中另一种弯折支撑部的剖面结构示意图,图9示出了本申请实施例中另一种弯折支撑部的剖面结构示意图;图10示出了本申请实施例中另一种弯折支撑部的剖面结构示意图。另一个可选的实施例中,上述连接部2322可以为固定凸起2326,该固定凸起2326远离支撑部2321的一端和弯折骨架231连接,因此,在连接部2322和弯折骨架231之间的连接点与支撑部2321之间具有一定的距离。该距离利用固定凸起2326连接,由于固定凸起2326具有柔性,且柔性较好,因此,在可折叠显示装置折叠时,弯折支撑部23进行弯折,固定凸起2326发生弯折,从而可以使支撑部2321和与该支撑部2321固定连接的柔性屏1同时发生弯折,两者之间不易产生相对位移。因此,可以提高支撑部2321与柔性屏1之间连接的强度,降低柔性屏1与柔性支撑条232之间脱胶的风险,提高可折叠显示装置的产品质量。
请继续参考图8,本申请一个具体的实施例中,上述固定凸起2326可以具有卡扣,弯折骨架231具有卡口2315,上述卡扣和卡口2315一一适配,即,两者可以卡接。具体的,该卡扣具有柔性,将弯折支撑部23于弯折骨架231安装时,卡扣可以塞入弯折骨架231的卡口2315中,卡扣通过卡口2315时,可以收缩,通过该卡口2315后,卡扣恢复原状,可以与卡口2315卡合,从而使固定凸起2326远离支撑部2321的一端与弯折骨架231连接。该实施例中,将固定凸起2326的卡口2315塞入弯折骨架231的卡口2315即可完成安装,因此,安装过程较为简便。
如图8至图10所示,上述实施例中,卡扣和卡口的截面形状不做具体限制,卡扣和卡口的卡接结构也不做具体限制,如图5所示,一个实施例中,卡扣的截面形状为矩形,卡扣与卡口平面卡接;如图6所示,另一个实施例中,卡扣的截面形状为椭圆形,卡扣和卡口曲面卡接,该实施例中,卡扣具有沿远离卡口底部的方向尺寸逐渐扩大的区域,便于安装卡扣和卡口;如图7所示,再一个具体的实施例中,卡扣的截面形状为三角形,该实施例卡扣沿远离卡口底部的方向尺寸逐渐扩大,便于安装。
上述卡扣与卡口2315的连接方式中,还包括不同的实施方案,例如,卡口2315的结构和形状不做具体限制,卡口2315可以为凹槽2316,也可以为通孔2318。请继续参考图8,一个可选的实施例中,卡口2315为凹槽2316,该凹槽2316的槽口具有卡沿2317,卡扣可以经过该卡沿2317并伸入凹槽2316内,并与卡沿2317卡合。具体的,卡扣为柔性卡扣,因此, 在经过卡沿2317时,卡扣收缩,进入凹槽2316内以后恢复原状,并能够与卡沿2317卡合,以完成安装。该实施例中,卡扣和凹槽2316卡接,因此,两者可以在连接点处也可以发生一定的位移,从而便于吸收弯折支撑部23的形变,且该连接方式便于安装。此外,该实施例中,卡扣位于凹槽2316内,凹槽2316可以对卡扣起到保护的作用,其余结构不易于卡扣发生剐蹭或者结构干涉。
请参考图11,图11示出了本申请实施例中另一种弯折支撑部的剖面结构示意图。另一个可选的实施例中,卡口2315为通孔2318,卡扣穿过通孔2318,之后与通孔2318的边沿卡合。该实施例中,卡扣与通孔2318的安装过程也较为方便,且两者可以在连接点处也可以发生一定的位移,从而便于吸收弯折支撑部23的形变。此外,该实施例中,通孔2318的结构较为简单,从而可以简化弯折骨架231的制作工艺,降低弯折骨架231的制作成本。
请参考图12,图12示出了本申请实施例中另一种弯折支撑部的剖面结构示意图。本申请另一种实施方式中,固定凸起2326还可以与弯折骨架231固定连接,具体的,弯折骨架231可以包括与上述固定凸起2326一一适配的安装部2319,该固定凸起2326远离支撑部2321的一端固定于安装部2319。该实施例中,固定凸起2326远离支撑部2321的一端与弯折骨架231固定连接,该实施例中,固定凸起2326与弯折骨架231之间的连接点与支撑部2321之间利用柔性的固定凸起2326连接,从而可以吸收弯折支撑部23的形变。该实施例中,固定凸起2326与弯折骨架231之间的连接强度较高。
请继续参考图12,具体的实施例中,上述安装部2319具有安装孔2320,固定凸起2326穿过上述安装孔2320,之后固定于弯折骨架231,该实施例中,固定凸起2326穿过安装孔2320,因此安装孔2320的孔壁可以保护上述固定凸起2326,以提高上述固定凸起2326的使用寿命。此外,该安装孔2320的孔壁可以限位上述固定凸起2326,以防止固定凸起2326与弯折骨架231之间产生过大的位移,以提高固定凸起2326与弯折骨架231支架的连接强度。
本申请具体的实施例中,固定凸起2326与弯折骨架231之间的固定连接方式不限,一个具体的实施方式中,上述固定凸起2326粘贴固定于安装部2319,该连接方式成本较低,工艺较为简单。另一个具体的实施方式中,上述固定凸起2326热融固定于安装部2319,该连接方式的连接固定强度较高,不易脱落。
可选的技术方案中,连接部的形状不限,例如,连接部可以为条状连接部,也可以为点状连接部,根据实际产品需求选择连接部的形状即可。请参考图13,图13示出了本申请实施例中一种支撑结构的结构示意图。一个具体的实施例中,连接部2322为条状连接部2327,柔性支撑条232需要的条状连接部2327数量较少,且柔性支撑条232的结构较为简单,从而该柔性支撑条232的制作工艺简单,制作成本较低。
请继续参考图13,一个具体的实施例中,柔性支撑条232具有多个条状连接部2327,条状连接部2327沿柔性支撑条232的延伸方向延伸,且多个条状连接部2327平行排布设置,可折叠显示装置折叠时,折叠方向垂直于柔性支撑条232的延伸方向,因此,本申请实施例中,条状连接部2327的延伸方向垂直于柔性支撑条232的折叠方向,从而可折叠显示装置的折叠线与条状连接部2327之间的区域平行,从而可折叠显示装置折叠时,相平行的条状连接部2327之间的区域可以较大幅度的弯折,从而便于弯折操作,且不易损坏条状连接部2327,从而提高使用寿命。如图13所示,柔性支撑条232的延伸方向为A方向,折叠方向为B方向。
请参考图14,图14示出了本申请实施例中另一种支撑结构的结构示意图。再一个具体的实施例中,当连接部2322为点状连接部2328时,点状连接部2328在支撑部2321矩阵排 布设置,一方面,多个矩阵排布的点状连接部2328,可以提供较为可靠的连接关系,另一方面,矩阵排布的点状连接部2328之间可以形成条状间隙,便于可折叠显示装置进行折叠操作。
具体的实施例中,点状连接部沿平行于柔性屏1方向的截面形状可以为圆形、方形或者多边形,点状连接部的形状较为规则,便于制作。
本申请实施例中,可折叠显示装置的柔性屏可以包括一个弯折区,也可以包括两个或者更多的弯折区,对应的,可折叠显示装置的支撑结构可以只包括一个弯折支撑部,也可以包括两个或者更多的弯折支撑部。具体的,可折叠显示装置包括几个弯折区域,对应的,就可以包括相同个数的弯折支撑部,可折叠显示装置的柔性屏与弯折支撑部之间不易脱胶,从而可以提高可折叠显示装置的柔性屏与弯折支撑部的连接强度较高,可折叠显示装置的产品质量较好。请参考图15,图15示出了本申请实施例中一种可折叠显示装置的结构示意图,图中所示的可折叠显示装置的柔性屏1包括三个平面区14和两个弯折区15。
请参考图3和图16,图16示出了本申请实施例中另一种可折叠显示装置折叠状态示意图。第二方面,本申请还提供了一种可折叠显示装置,该可折叠显示装置包括柔性屏1以及上述任一技术方案中的可折叠显示装置的支撑结构2。该支撑结构2包括支撑柔性屏1的弯折区15的弯折支撑部23,以及支撑柔性屏1的平面区14的平面支撑部22,上述弯折支撑部23包括柔性支撑条232和弯折骨架231,柔性支撑条232包括支撑部2321和固定于支撑部2321远离柔性屏1一侧的连接部,该连接部的远端与弯折骨架231固定连接,从而,柔性支撑条232与弯折骨架231之间可以具有相对移动的空间,当可折叠显示装置弯折时,可以使柔性屏1与支撑条的支撑部稳固连接,不易出现脱胶问题,可折叠显示装置的产品质量较高。
具体的实施方式中,上述可折叠显示装置的折叠方向不限,如图16所示,该可折叠显示装置可以朝向柔性屏1所在的方向折叠,即折叠后,柔性屏1位于可折叠显示装置的支撑壳体之间;或者,如图3所示,另一个具体的实施例中,可折叠显示装置可以朝远离柔性屏1的方向折叠,即折叠后,柔性屏1位于可折叠显示装置的支撑壳体的外侧。
以上,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以权利要求的保护范围为准。

Claims (16)

  1. 一种支撑结构,用于支撑具有柔性屏的可折叠显示装置,其特征在于,包括:支撑所述可折叠显示装置的弯折区的弯折支撑部,所述弯折支撑部包括弯折骨架和柔性支撑条,其中:
    所述柔性支撑条一侧用于固定所述柔性屏位于所述弯折区的部分,另一侧和所述弯折骨架之间通过间隔分布的至少两个连接部连接。
  2. 根据权利要求1所述的支撑结构,其特征在于,所述连接部包括卡槽,所述弯折骨架包括与所述卡槽卡接的卡头。
  3. 根据权利要求1所述的支撑结构,其特征在于,所述连接部包括固定凸起,所述固定凸起的端部与所述弯折骨架连接。
  4. 根据权利要求3所述的支撑结构,其特征在于,所述固定凸起具有卡扣,所述弯折骨架包括与所述固定凸起的卡扣一一适配的卡口,所述固定凸起的卡扣伸入所述卡口并与所述卡口卡合。
  5. 根据权利要求4所述的支撑结构,其特征在于,所述卡口为凹槽,所述凹槽的槽口具有卡沿,所述卡扣位于所述凹槽内并与所述卡沿卡合。
  6. 根据权利要求4所述的支撑结构,其特征在于,所述卡口为通孔,所述卡扣穿过所述通孔并与所述通孔的边沿卡合。
  7. 根据权利要求3所述的支撑结构,其特征在于,所述弯折骨架包括与所述固定凸起一一适配的安装部,所述固定凸起的端部固定于所述安装部。
  8. 根据权利要求7所述的支撑结构,其特征在于,所述安装部具有安装孔,所述固定凸起穿过所述安装孔设置。
  9. 根据权利要求7所述的支撑结构,其特征在于,所述固定凸起粘贴固定于所述安装部;或者,所述固定凸起热融固定于所述安装部。
  10. 根据权利要求1所述的支撑结构,其特征在于,所述连接部为条状连接部。
  11. 根据权利要求10所述的支撑结构,其特征在于,多个所述条状连接部沿所述柔性支撑条的延伸方向延伸,且平行排布。
  12. 根据权利要求1所述的支撑结构,其特征在于,所述连接部为点状连接部。
  13. 根据权利要求12所述的支撑结构,其特征在于,所述点状连接部矩阵排布。
  14. 根据权利要求1~13任一项所述的支撑结构,其特征在于,包括至少两个所述弯折支撑部。
  15. 一种可折叠显示装置,其特征在于,包括柔性屏以及如权利要求1~14任一项所述的支撑结构。
  16. 根据权利要求15所述的可折叠显示装置,其特征在于,所述可折叠显示装置朝向所述柔性屏的方向折叠或者远离所述柔性屏的方向折叠。
PCT/CN2020/085932 2019-04-30 2020-04-21 一种支撑结构及可折叠显示装置 WO2020221064A1 (zh)

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