WO2022141003A1 - 一种柔性显示面板以及显示设备 - Google Patents

一种柔性显示面板以及显示设备 Download PDF

Info

Publication number
WO2022141003A1
WO2022141003A1 PCT/CN2020/140435 CN2020140435W WO2022141003A1 WO 2022141003 A1 WO2022141003 A1 WO 2022141003A1 CN 2020140435 W CN2020140435 W CN 2020140435W WO 2022141003 A1 WO2022141003 A1 WO 2022141003A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
display panel
flexible display
film layer
adhesive film
Prior art date
Application number
PCT/CN2020/140435
Other languages
English (en)
French (fr)
Inventor
闫德松
廖富
Original Assignee
昆山国显光电有限公司
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 昆山国显光电有限公司 filed Critical 昆山国显光电有限公司
Priority to CN202080080502.3A priority Critical patent/CN115066717B/zh
Priority to PCT/CN2020/140435 priority patent/WO2022141003A1/zh
Publication of WO2022141003A1 publication Critical patent/WO2022141003A1/zh

Links

Images

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 display devices, and in particular, to a flexible display panel and a display device.
  • the flexible display panel of such a flexible display device Since the flexible display panel of such a flexible display device is bent by the user for many times, the bending stress is easily accumulated between the film layers in the flexible display panel, so that the film layers of the flexible display panel are dislocated or split. cracking phenomenon.
  • One of the embodiments of the present application provides a flexible display panel, comprising: a display layer, a first layer group located above the display layer, and a second layer group located below the display layer; at least one layer of the flexible display device The portion can be bent about a predetermined axis, the angle of which is greater than 120°; the first layer set includes at least one membrane layer; the second layer set includes at least one support layer, the support layer comprising a rigid material.
  • the flexible display panel further includes: a covering member covering at least one of the following: the edge of the display layer, the edge of the first layer group, and the second layer the edge of the group.
  • the first set of layers includes a cover sheet layer and a first adhesive film layer.
  • the first adhesive film layer overlies at least a portion of the display layer and the second set of layers to form the cover.
  • the first adhesive film layer has an extension in a direction parallel to the predetermined axis that exceeds the length of the corresponding display layer, the extension partially extending to the second layer set The lower surface of the cladding is formed.
  • the thickness of the portion of the first adhesive film layer extending to the lower surface of the second layer set is between 0.025 mm and 0.5 mm.
  • the material of the first adhesive film layer comprises optically clear adhesive.
  • the second set of layers includes a support layer and a second adhesive film layer.
  • the second adhesive film layer overlies the display layer and at least a portion of the first set of layers to form the cover.
  • the second adhesive layer has an extension in a direction parallel to the predetermined axis that exceeds the length of the corresponding display layer, the extension partially extending to the first layer set The upper surface of the cladding is formed.
  • the length of the portion of the second adhesive film layer extending to the upper surface of the first layer set along a direction parallel to the predetermined axis is between 0.7 mm and 3 mm.
  • the thickness of the portion of the second adhesive film layer extending to the upper surface of the first layer set is between 0.025 mm and 0.5 mm.
  • the first adhesive film layer has a first extension with a length exceeding the length of the corresponding display layer along a direction parallel to the predetermined axis; A direction parallel to the predetermined axis has a second extension portion whose length exceeds the length of the corresponding display layer; the first extension portion and the second extension portion are mutually joined to form the covering member.
  • the material of the first adhesive film layer and the second adhesive film layer is the same.
  • the second set of layers includes a buffer film layer.
  • the buffer film layer coats the display layer and at least part of the first layer group to form the cladding member.
  • the buffer film layer has an extension portion whose length exceeds the length of the corresponding display layer along a direction parallel to the predetermined axis, and the extension portion partially extends to the top of the first layer group The surface forms the cladding.
  • the length of the portion of the buffer film layer extending to the upper surface of the first layer group along a direction parallel to the predetermined axis is between 0.7 mm and 3 mm.
  • the thickness of the portion of the buffer film layer extending to the upper surface of the first layer group is between 0.025mm-0.5mm.
  • the outer surface of the envelope portion of the wrap is tack-free.
  • At least a portion of the lower surface of the second set of layers includes a plurality of bosses arranged in a distributed manner.
  • the distribution interval of the bosses along the direction perpendicular to the predetermined axis is 0.1 mm-2 mm.
  • the shape of the boss includes a hemispherical shape, a rod-shaped shape, and an elongated shape.
  • the bosses are formed by machining on the support layer.
  • the boss is adhered to the lower surface of the support layer.
  • the material of the boss includes steel sheet, alloy or glass.
  • a display device including a flexible display panel
  • the flexible display panel includes: a display layer, a first layer group located above the display layer, and a second layer located below the display layer a layer group; at least a part of the flexible display panel can be bent around a predetermined axis, and its bending angle is greater than 120°; the first layer group includes at least one film layer; the second layer group includes at least one support layer, The support layer comprises a rigid material.
  • the display device further comprises: a rotating shaft, at least a part of the flexible display panel can be bent around the rotating shaft; at least one set of limiting grooves, disposed along the flexible display panel and the predetermined axis The two ends of the parallel direction; the limiting groove restricts the movement of the flexible display panel along the direction perpendicular to the display surface.
  • At least a part of a non-display area of the flexible display panel in a direction parallel to the predetermined axis slides in a first direction in the limiting groove.
  • a plurality of protrusions are distributed on the upper surface and/or the lower surface of the area of the flexible display panel located inside the limiting groove, and the protrusions can reduce the distance between the flexible display panel and all the protrusions.
  • the contact area of the limit groove is not limited.
  • FIG. 1 is one of partial structural schematic diagrams of a display device according to some embodiments of the present application.
  • FIG. 2 is one of the schematic structural diagrams of the flexible display panel according to some embodiments of the present application.
  • FIG. 3 is a second schematic diagram of a partial structure of a display device according to some embodiments of the present application.
  • FIG. 4A is a second schematic structural diagram of a flexible display panel according to some embodiments of the present application.
  • FIG. 4B is a third schematic structural diagram of a flexible display panel according to some embodiments of the present application.
  • Fig. 5 is a partial enlarged schematic view of area A in Fig. 4A according to the present application.
  • FIG. 6 is one of the schematic diagrams of the manufacturing process of the cladding member of the flexible display panel according to some embodiments of the present application.
  • FIG. 7 is a fourth schematic structural diagram of a flexible display panel according to some embodiments of the present application.
  • Fig. 8 is a partial enlarged schematic view of region B in Fig. 7 according to the present application.
  • FIG. 9 is the second schematic diagram of the manufacturing process of the cladding member of the flexible display panel according to some embodiments of the present application.
  • FIG. 10 is a fifth structural schematic diagram of a flexible display panel according to some embodiments of the present application.
  • FIG. 11 is the third schematic diagram of the manufacturing process of the cladding member of the flexible display panel according to some embodiments of the present application.
  • FIG. 12 is a third schematic diagram of a partial structure of a display device according to some embodiments of the present application.
  • FIG. 13 is a fourth schematic diagram of a partial structure of a display device according to some embodiments of the present application.
  • Fig. 14 is a partial enlarged schematic view of region C in Fig. 13 according to the present application.
  • FIG. 15 is a fifth schematic diagram of a partial structure of a display device according to some embodiments of the present application.
  • FIG. 16 is a sixth schematic diagram of a partial structure of a display device according to some embodiments of the present application.
  • FIG. 17 is a seventh schematic diagram of a partial structure of a display device according to some embodiments of the present application.
  • the flexible display panel of one or more embodiments of the present application may be applied to display devices of different electronic products.
  • Different electronic products may include, but are not limited to, various terminal devices such as mobile phones, personal computers, keyboards, monitors, televisions, vehicle display terminals, and e-books.
  • the flexible display panels of some embodiments of the present application have a display area that can display content for viewing by a user.
  • the flexible display panel includes a non-curved portion and a curved portion, and the display area is located on the non-curved portion and the curved portion.
  • the curved portion of the flexible display panel is bent or bent to change its shape, the area of the display area that the user can observe also changes accordingly.
  • the display area exposed by the flexible display panel in the user's field of vision can be used as the display screen of the sliding screen mobile phone, and the curved part of the flexible display panel is bent by the rotating shaft and then stored on the back of the main display area or directly wound around the rotating shaft Users can choose to store the curved part of the flexible display panel on the back of the display area or directly wind it on the rotating shaft according to their needs, so as to reduce the area of the display area exposed by the flexible display panel, so as to make the flexible display device more portable; users also The curved portion of the flexible display panel can be selected to be pulled out from behind the display area to increase the area of the display area exposed by the flexible display panel to display more content.
  • the flexible display panel 100 may include a non-bending part 110 and a bending part 120 , the display area 101 is located at the front of the non-bending part 110 and the bending part 120 , and the bending part 120 may be bent around a predetermined axis 130 by bending Then, it is stored on the back of the non-curved part 110 , wherein, the surface of the flexible display panel 100 used for display can be understood as the front, and the surface opposite to it can be understood as the back.
  • some or all of the curved portion 120 may be curved relative to the front face of the non-curved portion 110 about the predetermined axis 130 .
  • the bending angle of the curved portion 120 about the predetermined axis 130 may be greater than 120°; in some embodiments, the bending angle of the curved portion 120 about the predetermined axis 130 may be greater than 150°; in some embodiments, The bending angle of the curved portion 120 about the predetermined axis 130 may be greater than 170°; in some embodiments, the bending angle of the curved portion 120 about the predetermined axis 130 may be approximately 180° (within plus or minus 5°); in some embodiments Among them, the bending angle of the bending portion 120 about the predetermined axis 130 may be much larger than 180°, that is, it may be curled around the fixed axis.
  • the bending angle of the curved portion 120 about the predetermined axis 130 refers to the angle that the front of the curved portion of the curved portion 120 changes relative to the front of the non-curved portion 110 after part or all of the curved portion 120 is bent about the predetermined axis 130 .
  • both the non-curved portion 110 and the curved portion 120 may be used to display images.
  • the stiffness of the curved portion 120 in the first direction is less than its stiffness in the second direction. 1
  • the first direction in this application refers to the direction in which the flexible display screen is perpendicular or substantially perpendicular to the predetermined axis 130; the direction in which the flexible display screen is parallel or substantially parallel to the predetermined axis 130 is the second direction.
  • Substantially vertical in this application means that in the direction relative to the vertical, a small amount of error may be allowed, and the error may be within plus or minus 5°. In some embodiments, the error may be between ⁇ 4°. In some embodiments, the error may be between ⁇ 3°. In some embodiments, the error may be between 1°.
  • the stiffness of the curved portion 120 in the first direction is between 0.01 GPa and 100 GPa; in some embodiments, the stiffness of the curved portion 120 in the first direction is between 0.01 GPa and 50 GPa; in some embodiments , the stiffness of the bending portion 120 in the first direction is between 0.01GPa and 20 GPa; in some embodiments, the stiffness of the bending portion 120 in the first direction is between 0.01GPa and 10GPa; in some embodiments, the bending portion The stiffness of the bending portion 120 in the first direction is between 0.01GPa and 5GPa; in some embodiments, the stiffness of the bending portion 120 in the first direction is between 0.01GPa and 1GPa.
  • the stiffness of the curved portion 120 in the second direction is between 10GPa and 1000GPa; in some embodiments, the stiffness of the curved portion 120 in the second direction is between 10GPa and 800GPa; in some embodiments, The stiffness of the bending portion 120 in the second direction is between 10GPa and 500GPa; in some embodiments, the stiffness of the bending portion 120 in the second direction is between 10GPa and 300GPa.
  • the flexible display panel 100 may be applied to the display device 1000 .
  • the display device 1000 may include a flexible display panel 100 and a rotating shaft 200 .
  • the display device 1000 may have a variable area display screen.
  • the display area 101 in which the flexible display panel 100 is presented to the user's field of view may serve as a display screen of the display device 1000 .
  • part or all of the bending part 120 of the flexible display panel 100 is bent around the rotating shaft 200 and then stored in the storage area of the display device 1000 , wherein the part of the bending part 120 located on the rotating shaft 200 and located in the storage area is harmful to the user.
  • the display areas corresponding to the parts visible to the user in the non-curved part 110 and the curved part 120 may serve as the display screen of the display device 1000 .
  • the curved portion 120 of the flexible display panel 100 may be pulled out from the receiving area (eg, the back side of the non-curved portion 110 ) along the first direction through the rotating shaft 200 , so as to be optionally presented in the user’s field of vision as an extended display area , it becomes a part of the display screen of the display device 1000 and expands the area of the display screen.
  • the curved portion 120 can also be rolled into the back of the non-curved portion 110 through the rotating shaft 200 for storage, thereby reducing the area of the display screen.
  • this part of the display area will not be observed by the user, and this part of the display area can be set to a screen-off state; when the bending portion 120 When at least a part of the rotating shaft 200 is pulled out to the front of the flexible display panel 100, the part of the display area returned to the front can be turned into a bright screen state and display content, thereby increasing the area of the display area that the user can see.
  • the display device 1000 may include a first rotating shaft and a second rotating shaft that are relatively distributed.
  • the flexible display panel 100 may include a non-curved portion and a first curved portion and a second curved portion distributed on both sides of the non-curved portion along the first direction.
  • the first curved portion and the second curved portion can be bent and stored in the inner space of the display device 1000 around the first rotation axis and the second rotation axis, respectively. Pull out from its storage area.
  • the flexible display panel 100 may include: a display layer 10 , a first layer group 20 and a second layer group 30 , wherein the first layer group 20 is located above the display layer 10 , the second layer Group 30 is located below the display layer.
  • the upper and lower referred to in this application refer to the directions of the front and back of the display surface of the non-curved portion 110 of the flexible display panel 100 .
  • the direction of the front of the display surface of the flexible display panel 100 is upward, and the The direction of the back is down.
  • display layer 10 is used to display images.
  • the types of display devices used for image display in the display layer 10 may include but are not limited to: Organic Light Emitting Diode (OLED), Light Emitting Diode (LED), Micro Light Emitting Diode (Micro Light Emitting Diode, Micro LED), sub-millimeter light-emitting diode (Mini Light Emitting Diode, Mini LED), etc.
  • the display layer 10 may be a multi-layer structure.
  • the display layer 10 may include a display device layer, an array structure layer, a flexible substrate. The order of each layer from bottom to top is the flexible substrate, the array structure layer, and the display device layer, that is, the display device layer may be located on the uppermost layer of the display layer 10, and the array structure layer may be located between the display device layer and the flexible substrate. Meanwhile, the flexible substrate may be located at the bottommost layer of the display layer 10 .
  • the display device layer may include a film layer that emits light.
  • the display device layer may include an organic light emitting diode (Organic Light Emitting Diode, OLED) light-emitting layer, and the OLED light-emitting layer includes a plurality of pixel units arranged in an array, and the pixel units emit light so that the display device layer can Display the image.
  • the array structure layer may be used to provide display-related control devices for the display device layer.
  • the array structure layer may include a pixel driving circuit, and the pixel driving circuit is electrically linked with the display device layer 3 for controlling a display image of the display device layer.
  • the pixel driving circuit may include, but is not limited to, a TFT (Thin Film Transistor) device, a capacitor device, and the like.
  • the flexible substrate may be a substrate film layer of the display layer 10 for supporting the display device layer and the array structure layer.
  • the material of the flexible substrate may include, but is not limited to, polyimide (PI) material, polyethylene terephthalate (PET) material, polybenzimidazole (Polybenzimidazoles) , PBI) material, polyetheretherketone (Polyetheretherketone, PEEK) material, polyvinylidene fluoride (Polyvinylidene fluoride, PVDF) material, polyether plastic (Polyphenylenesulphide, PPS) material, and any combination of the above materials.
  • PI polyimide
  • PET polyethylene terephthalate
  • PBI polybenzimidazole
  • PEEK polyetheretherketone
  • PVDF polyvinylidene fluoride
  • PPS polyether plastic
  • the mass ratio of polyethylene terephthalate is 0-20%; in some embodiments, the mass ratio of polyethylene terephthalate is 0-10%; In some embodiments, the mass ratio of polyethylene terephthalate is 0-4%. In some embodiments, the mass ratio of polybenzimidazole is 0-30%; in some embodiments, the mass ratio of polybenzimidazole is 5-20%; in some embodiments, polyether ether ketone The mass ratio of 0 to 4%. In some embodiments, the mass ratio of polyvinylidene fluoride is 0-10%; in some embodiments, the mass ratio of polyvinylidene fluoride is 0-5%. In some embodiments, the mass ratio of polyether-based plastics is 0-10%; in some embodiments, the mass ratio of polyether-based plastics is 0-5%.
  • the first layer group 20 may include a cover plate protective layer 21 and a first adhesive film layer 22 , wherein the cover plate layer 21 is adhered to the upper surface of the display layer 10 through the first adhesive film layer 22 .
  • the cover layer 21 can be used to prevent damage to the display layer 10 during use.
  • the cover layer 21 may be made of a material having flexibility, high hardness and high light transmittance at the same time.
  • the material of the cover layer 21 may include, but is not limited to, polyimide (PI) material, colorless polyimide (CPI) material, optical polyethylene terephthalate ( Polyethylene terephthalate (PET) plastic, aramid (Nomex) material and ultra-thin flexible glass (Ultra-thin glass, UTG) material.
  • the first adhesive film layer 22 may be an adhesive material with high light transmittance.
  • the first adhesive film layer 22 may be Optically Clear Adhesive (OCA).
  • the first layer group 20 may further include an optical film layer (not shown in the figure) for assisting the display layer 10 to display images.
  • the optical film layer may include a polarizer.
  • the polarizer can be disposed between the cover layer 21 and the display layer 10, and is bonded to the display layer 10 through an adhesive material (eg, OCA) with high light transmittance.
  • the first layer group 20 may further include a touch layer (not shown in the figure) for receiving a user's touch operation, so as to realize the function of the user performing a touch operation on the image displayed on the display layer 10 .
  • the touch layer may be disposed between the cover layer 21 and the display layer 10 and bonded to the display layer 10 by a high-transparency adhesive (eg, OCA).
  • the touch layer may include a touch device for enabling a user to perform touch control on the flexible display panel 100 .
  • the touch layer may include a non-contact sensing device for enabling the user to control the flexible display panel 100 through related gestures.
  • the first layer group 20 may also include a polarizer and a touch layer, wherein the touch layer may be disposed on the upper surface of the display layer 10, the polarizer may be disposed on the upper surface of the touch layer, and the flexible cover The plate is arranged on the upper surface of the polarizer.
  • each film layer of the flexible display panel 100 may be bonded by an adhesive material with high light transmittance (eg, OCA).
  • the second layer group 30 may include a support layer 31 and a second adhesive film layer 32 , wherein the support layer 31 is adhered to the lower surface of the display layer 10 through the second adhesive film layer 32 .
  • the support layer 31 may be used to support the display layer 10 to improve the rigidity of the flexible display panel 100 .
  • the support layer 31 may comprise a rigid material.
  • the rigid material may be a material with a higher Young's modulus.
  • the Young's modulus may range from xx to xx; preferably, it may range from xx to xx; more preferably, it may range from xx to xx.
  • rigid materials may include, but are not limited to, steel sheets, alloys, and flexible glass.
  • the second adhesive layer 32 may include, but is not limited to, pressure sensitive adhesive (PSA), optically clear adhesive (OCA), photosensitive adhesive, heat sensitive adhesive, and the like.
  • the second layer group 30 may further include a buffer film layer.
  • the buffer film layer can be used to provide a buffer effect for the display layer 10 to reduce the influence of the display layer 10 when it is impacted by external forces.
  • the buffer film layer may be bonded to the display layer 10 and other film layers in the second layer group 30 through an adhesive material.
  • the buffer film layer may be adhered between the lower surface of the display layer 10 and the upper surface of the support layer 31 through a pressure-sensitive adhesive.
  • the material of the buffer film layer may include foam, XX or XX.
  • the adhesive material used for bonding the buffer film layer may include, but is not limited to, pressure sensitive adhesive (PSA), optically clear adhesive (OCA), photosensitive adhesive, and heat sensitive adhesive.
  • each film layer of the multi-layer structure has different bending radii, and all the film layers in each film layer have different bending radii.
  • the generated bending stress is different, and the bending stress of the film layer close to the rotating shaft 200 is greater than that of the film layer far from the rotating shaft 200 . Therefore, during the bending process of the flexible display panel 100 and the display layer 10 thereof, film dislocation or film cleavage is likely to occur.
  • the flexible display panel 100 may include a covering member 40 for covering the display layer 10 The covering is strengthened to enhance the bonding force between each film layer of the display layer 10 and between the display layer 10 and other film layers, and to limit its dislocation and movement.
  • the flexible display panel 100 may further include a covering member 40 for covering at least a portion of at least one of the display layer 10 , the first layer group 20 and the second layer group 30 .
  • the cover member 40 may cover at least a partial area of the display layer 10 .
  • the cover 40 may cover a portion of the display layer 10 corresponding to the curved portion 120.
  • the wrapping member 40 may completely wrap the display layer 10 .
  • the wrapping member 40 may wrap the edge of the display layer 10 .
  • the edge of the display layer 10 may correspond to a non-display area of the flexible display panel 100 .
  • the non-display area refers to an area in the flexible display panel 100 that does not have an image display function.
  • the cover member 40 may cover at least a partial area of the display layer 10 and the first layer group 20 at the same time. In some embodiments, the wrap 40 may wrap around the edges of the first layer set 20 . In some embodiments, the cladding member 40 may integrally clad the display layer 10 and the first layer group 20 . In some embodiments, the covering member 40 may only cover the display layer 10 and the portion of the first layer group 20 corresponding to the bent portion 120 . In some embodiments, the cover member 40 may cover only a portion of the edge of the display layer 10 and the first layer group 20 corresponding to the non-display area of the flexible display panel 100 .
  • the cover member 40 may cover at least a partial area of the display layer 10 and the second layer group 30 at the same time. In some embodiments, the wrap 40 may wrap around the edges of the first layer set 30 . In some embodiments, the cladding member 40 may integrally clad the display layer 10 and the second layer group 30 . In some embodiments, the cover member 40 may cover only the portion of the display layer 10 and the second layer group 30 corresponding to the curved portion 120 . In some embodiments, the cover member 40 may cover only a portion of the edge of the display layer 10 and the second layer group 30 corresponding to the non-display area of the flexible display panel 100 .
  • the cover 40 may be formed of an inner film layer of the flexible display panel 100 . In some embodiments, the cover 40 may be formed from the first adhesive film layer 22 . In some embodiments, the cover 40 may be formed from the second adhesive film layer 32 . In some embodiments, the cladding 40 may be formed of a buffer film layer.
  • the cladding 40 may include an overlay portion 42 and an envelope portion 43 .
  • the overlying portion 42 may be the portion of the film stack that forms the cladding 40 overlying the upper surface of the first layer set 20 or the lower surface of the second layer set 30 .
  • the encapsulation portion 43 may be a portion of the film layer forming the cladding member 40 located outside the display layer 10 in the second direction.
  • the cladding member 40 may not include the overlapping portion 42 , but only the envelope portion 43 .
  • the covering member 40 may be formed by joining the first adhesive film layer 22 and the second adhesive film layer 32 to each other, and the portion for joining the first adhesive film layer 22 and the second adhesive film layer 32 is the covering Packing portion 43 of piece 40 .
  • the inner surface of the overlapping portion 42 is adhesive and the outer surface is non-adhesive, wherein the inner surface of the overlapping portion 42 refers to the upper surface or the second layer of the overlapping portion 42 and the first layer set 20 .
  • the surface with which the lower surface of the group 30 is in contact, and the surface opposite thereto is the outer surface of the overlapping portion 42 .
  • the outer surface of the encapsulation portion 43 is non-adhesive, wherein the outer surface of the encapsulation portion 43 refers to the surface of the encapsulation portion 43 at the position away from the display layer 10 , and the surface of the encapsulation portion 43 facing the display layer 10 is the inner surface surface.
  • the inner surface of the envelope portion 43 may or may not be tacky.
  • the tack-free surface of the cover 40 may be obtained by a curing process.
  • the wrapping member 40 is formed from an adhesive film layer (eg, the first adhesive film layer 22 or the second adhesive film layer 32). After the adhesive film layer forms the wrapping member 40, the overlapping portion 42 and the The adhesive material on the outer surface of the encapsulating portion 43 is subjected to surface curing treatment to obtain a non-sticky surface.
  • the tack-free surface of the cover 40 may be obtained by not applying glue.
  • the cover 40 is formed of a non-adhesive film layer (eg, a buffer film layer), and the portion of the non-adhesive film layer corresponding to the outer surfaces of the overlay portion 42 and the envelope portion 43 may not be coated with adhesive.
  • the covering part 42 and the encapsulating part 43 may be integrally cured to increase the strength of the covering part 42 and the covering part 43 and improve the covering part 40 cladding effect.
  • curing treatment may not be performed, so that the covering member 40 can maintain higher flexibility and improve its cushioning performance.
  • the first layer set 20 may include a cover sheet layer 21 and a first adhesive film layer 22
  • the second layer group 30 may include a support layer 31 and a second adhesive film layer 32
  • the flexible display panel 100 includes a cover layer 21 , a first adhesive film layer 22 , a display layer 10 , a second adhesive film layer 32 and a support layer 31 respectively from top to bottom.
  • the first layer set 20 may also include an optical film layer (not shown in the figures).
  • an optical film layer may be disposed between the first adhesive film layer 22 and the display layer 10 .
  • the optical film layer may include a polarizer (Polarizer, POL).
  • the first layer group 20 may also include a touch layer (not shown in the figure). In some embodiments, the touch layer may be disposed between the first adhesive film layer 22 and the display layer 10 . In some embodiments, the first layer group 20 may also include an optical film layer and a touch layer at the same time. In some embodiments, the optical film layer may be disposed between the first adhesive film layer 22 and the touch layer, and the touch layer may be disposed between the optical film layer and the display layer 10 . In some embodiments, the flexible display panel 100 includes a cover layer 21 , a first adhesive film layer 22 , an optical film layer, a touch layer, a display layer 10 , a second adhesive film layer 32 and a support layer 31 respectively from top to bottom. .
  • the flexible display panel 100 may further include a cover 40 formed of the first adhesive film layer 22 .
  • the first adhesive film layer 22 may cover at least a portion of the display layer 10 and the second layer set 30 to form the cover 40 .
  • the first adhesive film layer 22 may coat the optical film layer, the display layer 10 and at least a portion of the second layer set 30 to form the cover 40 .
  • the first adhesive film layer 22 may cover at least part of the touch layer, the display layer 10 and the second layer group 30 to form the cover 40 .
  • the first adhesive film layer 22 may cover at least part of the optical film layer, the touch layer, the display layer 10 and the second layer group 30 to form the cover member 40 .
  • the cladding 40 may include an overlay portion 42 and an envelope portion 43 .
  • the overlapping portion 42 is located on the lower surface of the support layer 31, and the encapsulation portion 43 is located outside the display layer 10 along the direction of the predetermined axis 130.
  • the cover member 40 may cover any side of the flexible display panel 100 along the second direction. In some embodiments, the cover member 40 may also cover both sides of the flexible display panel 100 along the second direction.
  • the first adhesive layer 22 has an extension 221 in the second direction (direction parallel to the predetermined axis 130 ) having a length exceeding the length of the corresponding display layer 10 , the The extension portion 221 partially extends to the lower surface of the second layer group 30 , so that the first adhesive film layer 22 is partially extended, and the extended portion constitutes the covering member 40 .
  • the portion of the extension 221 that extends to the lower surface of the second layer set 30 may form the overlapping portion 42 of the cladding member 40 .
  • a portion of the extension portion 221 that does not extend to the lower surface of the second layer set 30 forms an encapsulation portion 43 of the covering member 40 for encapsulating the space between the first adhesive film layer 22 and the overlapping portion 42 .
  • film layer The film layer between the first adhesive film layer 22 contained in the encapsulation part 43 and the overlapping part 42 is referred to as an encapsulated film layer.
  • the film layer encapsulated by the encapsulation portion 43 may include the display layer 10 , the second adhesive film layer 32 and the support layer 31 .
  • the encapsulated film layer may include an optical film layer, a display layer 10 , a second adhesive film layer 32 and a support layer 31 . In some embodiments, the encapsulated film layer may include a touch layer, a display layer 10 , a second adhesive film layer 32 and a support layer 31 . In some embodiments, the encapsulated film layer may include an optical film layer, a touch layer, a display layer 10 , a second adhesive film layer 32 and a support layer 31 .
  • a certain gap may exist between the encapsulation portion 43 and the encapsulated film layer.
  • the gap between the encapsulation portion 43 and the encapsulated film layer may allow a small amount of dislocation between the film layers when the encapsulated film layers are subjected to bending stress to release part of the bending stress, and , the connection between the film layers by the encapsulation part 43 will prevent the film layers to be packaged from separating the film layers, so that there will only be a small amount of dislocation between the film layers without film separation.
  • the cladding member 40 of the present invention can take into account the effects of stress relief and reinforcement connection between the film layers. In some embodiments, referring to FIG.
  • the encapsulation portion 43 can also be directly attached to the outer side of the encapsulated film layer, that is, there is no gap between the encapsulated portion 43 and the encapsulated film layer. In some embodiments, the encapsulation portion 43 is attached to the outer side of the encapsulated film layer to improve the encapsulation strength of the encapsulated film layer.
  • the length L 1 of the overlapping portion 42 in the second direction depends on the material properties of the covering member 40 and the strength of the bond. Generally speaking, if the overlapping portion 42 is too long, material waste may be caused, and the display performance may be affected due to the extra thickness of the overlapping portion. If the overlapping portion 42 is too short, the bonding strength may be insufficient and the significance of overlapping parts will be lost. In order to avoid the influence of the overlapping portion 42 on the display performance, the overlapping portion 42 should overlap with the non-display area of the flexible display panel 100 as much as possible, that is, the overlapping portion 42 should avoid extending below (or above) the display area.
  • the length L 1 of the overlapping portion 42 in the second direction corresponds to the width of the edge of the second layer group 30 covered by the covering member 40 .
  • the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 1 mm and 5 mm. In some embodiments, the length L 1 of the overlapping portion 42 of the covering member 40 in the second direction is between 1 mm and 4 mm. In some embodiments, the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 1 mm and 3 mm. In some embodiments, the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 1 mm and 2 mm.
  • the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 1.5 mm and 5 mm. In some embodiments, the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 1.5 mm and 4 mm. In some embodiments, the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 1.5 mm and 3 mm. In some embodiments, the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 1.5 mm and 2 mm. In some embodiments, the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 2 mm and 5 mm.
  • the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 3 mm and 5 mm. In some embodiments, the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 4 mm and 5 mm. In some embodiments, the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 2 mm and 3 mm. In some embodiments, the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 2 mm and 4 mm. In some embodiments, the length L 1 of the overlapping portion 42 of the covering member 40 along the second direction is between 3 mm and 4 mm.
  • the thickness of the overlapping portion 42 depends on the material properties of the cover 40 and the strength of the bond. Generally speaking, the overlying portion 42 is too thick, which may affect the performance of the display. If the overlapping portion 42 is too thin, the significance of the covering member 40 may be lost due to insufficient material strength.
  • the thickness h 1 of the overlapping portion 42 of the cladding 40 is between 0.025 mm and 0.5 mm.
  • the thickness hi of the overlapping portion 42 of the cladding 40 is between 0.025mm-0.4mm.
  • the thickness hi of the overlapping portion 42 of the cladding 40 is between 0.025mm-0.3mm.
  • the thickness hi of the overlapping portion 42 of the cladding 40 is between 0.025mm-0.2mm. In some embodiments, the thickness h 1 of the overlapping portion 42 of the cladding 40 is between 0.025 mm and 0.1 mm. In some embodiments, the thickness h 1 of the overlapping portion 42 of the cladding 40 is between 0.03 mm and 0.1 mm. In some embodiments, the thickness h 1 of the overlapping portion 42 of the cladding 40 is between 0.035 mm and 0.1 mm. In some embodiments, the thickness h 1 of the overlapping portion 42 of the cladding 40 is between 0.04 mm and 0.1 mm.
  • the thickness h 1 of the overlapping portion 42 of the cladding 40 is between 0.045 mm and 0.1 mm. In some embodiments, the thickness h 1 of the overlapping portion 42 of the cladding 40 is between 0.05 mm and 0.1 mm. In some embodiments, the thickness hi of the overlapping portion 42 of the cladding 40 may be 0.05 mm. In some embodiments, the thickness hi of the overlapping portion 42 of the cladding 40 may be 0.1 mm.
  • the material of the first adhesive film layer 22 may be an adhesive material with higher light transmittance.
  • the material of the first adhesive film layer 22 may include optically clear adhesive (OCA).
  • OCA optically clear adhesive
  • the material of the first adhesive film layer 22 may also include a promoter or catalyst to assist the adhesive bonding.
  • the first adhesive film layer 22 can use OCA as the main adhesive material, and add an appropriate amount of accelerator.
  • the ratio of primary glue material to accelerator may be between 95:5-99.999:0.001.
  • the cover 40 of the flexible display panel 100 may be fabricated through a process 600 :
  • Step 610 laying a second adhesive film layer 32 on the upper surface of the support layer 31 .
  • the support layer 31 may be a sheet-like rigid material. In some embodiments, the support layer 31 may be a steel sheet or other rigid material of similar properties. In some embodiments, the thickness of the rigid material may be between 0.03mm-1mm. In some embodiments, the thickness of the rigid material may be between 0.03mm-0.7mm. In some embodiments, the thickness of the rigid material may be between 0.03mm-0.2mm. In some embodiments, the thickness of the rigid material may be between 0.03mm-0.1mm. In some embodiments, the thickness of the rigid material may be between 0.03mm-0.3mm. In some embodiments, the thickness of the rigid material may be between 0.03mm-0.4mm. In some embodiments, the thickness of the rigid material may be between 0.03mm-0.5mm.
  • the thickness of the rigid material may be between 0.08 and 0.12 mm. In some embodiments, the thickness of the rigid material may be between 0.28 and 0.32 mm. In some embodiments, the thickness of the rigid material may be between 0.38 and 0.42 mm. In some embodiments, the thickness of the rigid material may be between 0.48 and 0.52 mm.
  • the second adhesive film layer 32 may be a film-like adhesive material. In some embodiments, the second adhesive film layer 32 may be a film-like pressure-sensitive adhesive. In some embodiments, the thickness of the glue material is between 0.025mm-0.5mm. In some embodiments, the thickness of the glue material is between 0.025mm-0.4mm. In some embodiments, the thickness of the glue material is between 0.025mm-0.3mm. In some embodiments, the thickness of the glue material is between 0.025mm-0.2mm. In some embodiments, the thickness of the glue material is between 0.025mm-0.1mm. In some embodiments, the thickness of the glue material is between 0.025mm-0.05mm.
  • the shapes and areas of the bonding surfaces of the support layer 31 and the second adhesive film layer 32 are as similar as possible. In some embodiments, the shape of the support layer 31 and the second adhesive layer 32 may be rectangular.
  • Step 620 laying the display layer 10 on the upper surface of the second adhesive film layer 32 .
  • the adhesive surfaces of the display layer 10 and the second adhesive film layer 32 have the same shape and area as possible.
  • the second adhesive layer 32 may be slightly smaller than the display layer 10 .
  • the distance between each edge of the second adhesive layer 32 and each edge of the display layer 10 may be between 0.001 mm and 0.01 mm.
  • the shape of the display layer 10 may be rectangular.
  • the stiffness of the display layer 10 along the direction of its long side may be less than the stiffness along the direction of its short side, so that at least a portion of the display layer 10 can bend along the direction of its long side.
  • the stiffness of the display layer 10 along the direction of its long side can also be greater than the stiffness along the direction of its short side, so that at least part of the display layer 10 can bend along the direction of its short side.
  • Step 630 laying a first adhesive film layer 22 on the display layer 10 , and the first adhesive film layer 22 has an extension portion 221 relative to the display layer 10 .
  • the first adhesive film layer 22 may be a film-like adhesive material. In some embodiments, the first adhesive film layer 22 may be a film-like optically clear adhesive (OCA). In some embodiments, the thickness of the glue material is between 0.025mm-0.5mm. In some embodiments, the thickness of the glue material is between 0.025mm-0.4mm. In some embodiments, the thickness of the glue material is between 0.025mm-0.3mm. In some embodiments, the thickness of the glue material is between 0.025mm-0.2mm. In some embodiments, the thickness of the glue material is between 0.025mm-0.1mm. In some embodiments, the thickness of the glue material is between 0.025mm-0.05mm.
  • OCA optically clear adhesive
  • the first adhesive film layer 22 has a larger area than the display layer 10 .
  • the display layer 10 may be bent along the direction of the long side thereof, and the first adhesive film layer 22 has a larger width than the display layer 10 in the direction of the short side of the display layer 10 .
  • both ends of the display layer 10 in the direction of the short side have extension portions 221 of the same size.
  • the extension portion 221 may also be disposed only at one end of the direction in which the short side of the display layer 10 is located.
  • the display layer 10 may be bent along the direction of the short side thereof, and the first adhesive film layer 22 has a larger width than the display layer 10 in the direction of the long side of the display layer 10 .
  • the extension portion 221 may be located at both ends of the long side of the display layer 10 in the direction, or at one end thereof.
  • an optical film layer and/or a touch layer may also be laminated on the display layer 10 , and the first adhesive film layer 22 may be laminated On the upper surface of the optical film layer or the touch layer.
  • Step 640 laying the cover sheet layer 21 on the first adhesive film layer 22 .
  • the cover layer 21 and the display layer 10 have the same shape and area.
  • the cover plate layer 21 may encapsulate the CPI film layer.
  • step 650 the extension portion 221 is turned down and adhered to the lower surface of the support layer 31 .
  • the extending portion 221 forms the overlapping portion 42 and the encapsulating portion 43 .
  • the operator can further cure the outer surfaces of the overlapping portion 42 and the encapsulating portion 43, so that the outer surfaces of the overlapping portion 42 and the encapsulating portion 43 are not sticky.
  • the first layer set 20 may include a cover sheet layer 21 and a first adhesive film layer 22
  • the second layer group 30 may include a support layer 31 and a second adhesive film layer 32
  • the flexible display panel 100 includes a cover layer 21 , a first adhesive film layer 22 , a display layer 10 , a second adhesive film layer 32 and a support layer 31 respectively from top to bottom.
  • the flexible display panel 100 may further include a cover 40 formed of the second adhesive film layer 32 .
  • the second adhesive film layer 32 may cover at least a portion of the display layer 10 and the first layer set 20 to form the cover 40 .
  • the cladding 40 may include an overlay portion 42 and an envelope portion 43 .
  • the overlapping portion 42 is located on the upper surface of the cover layer 21
  • the encapsulation portion 43 is located outside the display layer 10 along the second direction.
  • the cover member 40 may cover any side of the flexible display panel 100 along the second direction. In some embodiments, the cover member 40 may also cover both sides of the flexible display panel 100 along the second direction.
  • the second adhesive layer 32 has an extension 321 along a direction parallel to the predetermined axis 130 that exceeds the length of the corresponding display layer 10 , and the extension 321 partially extends to the first
  • the upper surface of the layer set 20 has a portion of the second adhesive film layer 32 extending, and the extending portion constitutes the covering member 40 .
  • the portion of the extension 321 that extends to the upper surface of the first layer set 20 may form the overlapping portion 42 of the cladding member 40 .
  • the portion of the extension portion 321 that does not extend to the upper surface of the first layer set 20 forms the encapsulation portion 43 of the covering member 40 for encapsulating the space between the second adhesive film layer 32 and the overlapping portion 42 .
  • the film layers encapsulated by the encapsulation portion 43 may include the display layer 10 and all the film layers in the first layer group 20 .
  • the length L 2 of the overlapping portion 42 in the second direction depends on the material properties of the covering member 40 and the strength of the bond. In some embodiments, the length L 2 of the overlapping portion 42 in the second direction corresponds to the width of the edge of the first layer group 20 covered by the covering member 40 . Referring to FIG. 8 , in some embodiments, the length L 2 of the overlapping portion 42 of the covering member 40 along the second direction is between 0.7 mm and 3 mm. In some embodiments, the length L 2 of the overlapping portion 42 of the covering member 40 along the second direction is between 0.7 mm and 2.5 mm. In some embodiments, the length L 2 of the overlapping portion 42 of the covering member 40 along the second direction is between 0.7 mm and 2 mm.
  • the length L 2 of the overlapping portion 42 of the covering member 40 in the second direction is between 0.7 mm and 1.5 mm. In some embodiments, the length L 2 of the overlapping portion 42 of the covering member 40 along the second direction is between 1 mm and 3 mm. In some embodiments, the length L 2 of the overlapping portion 42 of the covering member 40 along the second direction is between 1 mm and 2.5 mm. In some embodiments, the length L 2 of the overlapping portion 42 of the covering member 40 along the second direction is between 1 mm and 2 mm. In some embodiments, the length L 2 of the overlapping portion 42 of the covering member 40 in the second direction is between 1.5 mm and 3 mm.
  • the length L 2 of the overlapping portion 42 of the covering member 40 in the second direction is between 1.5 mm and 2.5 mm. In some embodiments, the length L 2 of the overlapping portion 42 of the covering member 40 along the second direction is between 2 mm and 2.5 mm.
  • the thickness h2 of the overlapping portion 42 of the cladding 40 is between 0.025mm - 0.5mm.
  • the thickness h 2 of the overlapping portion 42 of the cladding member 40 is similar to the thickness h 1 of the overlapping portion 42 in some other embodiments of the present application, and the specific thickness h 2 of the overlapping portion 42 is selected
  • the value range reference may be made to the description in FIG. 5 of the present application, which will not be repeated here.
  • the material of the second adhesive layer 32 may include any one or a combination of pressure sensitive adhesives (PSA), optically clear adhesives (OCA), photosensitive adhesives, and heat sensitive adhesives. In some embodiments, the material of the second adhesive layer 32 may also include a promoter or catalyst to assist the adhesive bonding.
  • PSA pressure sensitive adhesives
  • OCA optically clear adhesives
  • photosensitive adhesives and heat sensitive adhesives.
  • the material of the second adhesive layer 32 may also include a promoter or catalyst to assist the adhesive bonding.
  • the cover 40 of the flexible display panel 100 may be fabricated through a process 900:
  • Step 910 laying the second adhesive film layer 32 on the upper surface of the support layer 31 .
  • the support layer 31 may be a sheet-like rigid material. In some embodiments, the support layer 31 may be a steel sheet or other rigid material of similar properties. For the relevant dimensional parameters of the rigid material, reference may be made to the description in FIG. 6 of the present application, which will not be repeated here.
  • the second adhesive film layer 32 may be a film-like adhesive material. In some embodiments, the second adhesive film layer 32 may be a film-like adhesive material. In some embodiments, the second adhesive film layer 32 may be a film-like pressure-sensitive adhesive. For the thickness and dimension parameters of the adhesive material, reference may be made to the relevant description in FIG. 6 of the present application, and details are not repeated here.
  • step 920 the display layer 10 is laminated on the upper surface of the second adhesive film layer 32 , and the second adhesive film layer 32 has an extension portion 321 relative to the display layer 10 .
  • the shape and area of the display layer 10 and the support layer 31 are as identical as possible.
  • the shape of the display layer 10 may be rectangular.
  • the stiffness of the display layer 10 along the direction of its long side may be less than the stiffness along the direction of its short side, so that at least part of the display layer 10 can bend along the direction of its long side.
  • the stiffness of the display layer 10 along the direction of its long side can also be greater than the stiffness along the direction of its short side, so that at least part of the display layer 10 can bend along the direction of its short side.
  • the second adhesive film layer 32 has a larger area than the display layer 10 and the support layer 31 .
  • the display layer 10 may be bent along the direction of the long side thereof, and the second adhesive film layer 32 has a larger width than the display layer 10 in the direction of the short side of the display layer 10 .
  • both ends of the display layer 10 in the direction of the short side have extension portions 321 of the same size.
  • the extension portion 321 may also exist only at one end of the direction where the short side of the display layer 10 is located.
  • the display layer 10 may be bent along the direction of the short side thereof, and the second adhesive film layer 32 has a larger width than the display layer 10 in the direction of the long side of the display layer 10 .
  • the extension portion 321 may be located at both ends of the long side of the display layer 10 , or at one end thereof.
  • Step 930 laying the first adhesive film layer 22 on the display layer 10 .
  • the first adhesive film layer 22 may be a film-like adhesive material. In some embodiments, the first adhesive film layer 22 may be a film-like optically clear adhesive (OCA).
  • OCA optically clear adhesive
  • the first adhesive film layer 22 is as identical in shape and area as possible to the display layer 10 . In some embodiments, the first adhesive film layer 22 may be slightly smaller than the display layer 10 . In some embodiments, the distance between each edge of the first adhesive layer 22 and each edge of the display layer 10 may be between 0.001 mm and 0.01 mm.
  • an optical film layer and/or a touch layer may also be laid on the display layer 10 .
  • Step 940 laying the cover sheet layer 21 on the first adhesive film layer 22 .
  • the shape and area of the cover layer 21 and the display layer 10 are the same as possible.
  • the cover plate layer 21 may encapsulate the CPI film layer.
  • step 950 the extension portion 321 is turned up and adhered to the upper surface of the cover layer 21 .
  • the extension portion 321 after the extension portion 321 is turned upward and adhered to the upper surface of the cover layer 21 , the extension portion 321 forms the overlapping portion 42 and the encapsulation portion 43 .
  • the operator may further cure the outer surfaces of the overlapping portion 42 and the encapsulating portion 43 so that the outer surfaces of the overlapping portion 42 and the encapsulating portion 43 are not sticky.
  • the first layer set 20 may include a cover sheet layer 21 and a first adhesive film layer 22
  • the second layer group 30 may include a support layer 31 and a second adhesive film layer 32
  • the flexible display panel 100 includes a cover layer 21 , a first adhesive film layer 22 , a display layer 10 , a second adhesive film layer 32 and a support layer 31 respectively from top to bottom.
  • the flexible display panel 100 may further include a cover 40 formed of the first adhesive film layer 22 and the second adhesive film layer 32 .
  • the first adhesive film layer 22 and the second adhesive film layer 32 may be joined to each other to cover at least a portion of the display layer 10 to form the cover member 40 .
  • the wrap 40 may include an envelope portion 43 .
  • the cover member 40 may cover any side of the flexible display panel 100 along the second direction. In some embodiments, the cover member 40 may also cover both sides of the flexible display panel 100 along the second direction.
  • the first adhesive film layer 22 has a first extension 222 along the second direction (direction parallel to the predetermined axis 130 ) with a length exceeding the length of the corresponding display layer 10
  • the second The adhesive film 32 has a second extension 322 along a direction parallel to the predetermined axis 130 that exceeds the length of the corresponding display layer 10 .
  • the first extension 222 and the second extension 322 are joined to each other, so that the first adhesive film is Layer 22 and second adhesive film layer 32 together form cover 40 .
  • the joint portion of the first extension portion 222 and the second extension portion 322 constitutes the encapsulation portion 43 of the cover 40 for encapsulating the film between the first adhesive film layer 22 and the second adhesive film layer 32 Floor.
  • the film layers encapsulated by the encapsulation portion 43 may include the display layer 10 and all the film layers in the first layer group 20 .
  • the materials of the first adhesive film layer 22 and the second adhesive film layer 32 may be the same.
  • the first adhesive film layer 22 and the second adhesive film layer 32 may comprise optically clear adhesives.
  • the first adhesive film layer 22 and the second adhesive film layer 32 may be two distinct parts on a complete adhesive film layer (eg, an OCA film layer).
  • the intact adhesive film may be folded to form two distinct film planes.
  • two different film layer planes may respectively form the first adhesive film layer 22 and the second adhesive film layer 32 , which are laminated between other film layers of the flexible display panel 100 .
  • the encapsulated portion 43 of the wrapping member 40 may be formed by the joint portion of the complete adhesive film layer which is folded and located outside the display layer 10 .
  • the cladding member 40 of the flexible display panel 100 may be fabricated through a process 1100:
  • Step 1110 laying an adhesive film layer on the upper surface of the support layer 31 , and the adhesive film layer extends out of the support layer 31 in at least one direction.
  • Step 1120 Lay the display layer 10 on the upper surface of the adhesive film layer.
  • the shape and area of the display layer 10 and the support layer 31 are the same as possible, and the adhesive film layer has a portion extending beyond its short or long side relative to the display layer 10 .
  • the portion of the adhesive film adhered to the upper surface of the display layer 10 may form the first adhesive film 22 of the flexible display panel 100 .
  • the covering member 40 is formed after the portion of the adhesive film layer extending from the support layer 31 is folded and adhered to the upper surface of the display layer 10 .
  • the cover member 40 may cover the display layer 10 therebetween by forming the first adhesive film layer 22 and the second adhesive film layer 32 to be joined to each other.
  • the joint portion of the first adhesive film layer 22 and the second adhesive film layer 32 is located outside the display layer 10 as the envelope portion 43 of the covering member 40 .
  • an optical film layer and/or a touch layer may also be laid on the display layer 10 .
  • Step 1140 laying the cover layer 21 on the adhesive film layer on the upper surface of the display layer 10 .
  • the cover layer 21 and the display layer 10 have the same shape and area.
  • the cover layer 21 may include a CPI film layer.
  • the second layer set 30 may include a buffer film layer.
  • a buffer film layer may be disposed between the second adhesive film layer 32 and the display layer 10 .
  • the buffer film layer may coat the display layer 10 and at least part of the first layer group 20 to form the cladding member 40 .
  • the buffer film layer has an extension portion along the second direction (the direction parallel to the predetermined axis 130 ) that exceeds the length of the corresponding display layer 10 , and the extension portion partially extends to the first layer group 20
  • the upper surface of the buffer film layer is formed to form the cladding member 40 .
  • the portion of the buffer film layer extending to the upper surface of the first layer group 20 constitutes the overlapping portion of the cladding member 40 .
  • the length of the overlapping portion in the second direction is between 0.7 mm and 3 mm.
  • the thickness of the overlapping portion is between 0.025mm-0.5mm.
  • the covering member 40 formed by the buffer film layer has similar structural shape and size parameters as the covering member 40 formed by the second adhesive film layer 32.
  • the buffer film layer may be a soft material.
  • the material of the buffer film layer may include, but is not limited to, foam, gel material, or silicone material, and the like.
  • the lower surface of the second layer group 20 may include a plurality of bosses 311 distributed along the first direction.
  • the boss 311 directly contacts the rotating shaft 200 , and the force of the rotating shaft 200 acting on the flexible display panel 100 directly acts on the boss 311 .
  • the adjacent bosses 311 Since there is a certain gap between the adjacent bosses 311, the adjacent bosses 311 will not be pressed against each other when the flexible display panel 100 is bent, which can effectively reduce the bending stress generated when the flexible display panel 100 is bent.
  • the strain generated when the flexible display panel 100 is bent can be released through the gaps between the bosses 311 , preventing the strain from accumulating in each film layer of the flexible display panel 100 and then being further transmitted to each film layer of the display layer 10 Therefore, the risk of film layer dislocation and splitting of the flexible display panel 100 and each film layer of the display layer 10 during the bending process is reduced.
  • the support layer 31 may include a plurality of bosses 311 arranged in a distributed manner.
  • the plurality of bosses 311 may be machined on the rigid material of the support layer 31 .
  • the support layer 31 may include a steel sheet, and the bosses 311 may be processed and formed on the steel sheet.
  • the support layer 31 may be ultra-thin glass, and the bosses 311 may be formed by processing on the ultra-thin glass.
  • the surface of the boss 311 can be covered with an adhesive material, so that the boss 311 can provide a certain buffering effect when being squeezed by the rotating shaft.
  • the adhesive material covering the boss 311 may include, but is not limited to, polyurethane rubber (polyurethane, PU), silicone, or thermoplastic polyurethane elastomers (Thermoplastic polyurethanes, TPU), and the like.
  • the bosses 311 may not be processed and formed on the rigid material of the support layer 31 , but directly form the bosses 311 from the glue material by wrapping the glue material on the rigid material.
  • the boss 311 may be disposed on the lower surface of the support layer 31 in the region corresponding to the curved portion 120 . In some embodiments, the bosses 311 may be disposed on the back surface of the support layer 31 at regular intervals along the first direction. In some embodiments, the distribution rule of the bosses 311 along the first direction may be distributed at equal intervals. In some embodiments, the bosses 311 may be disposed on the lower surface of the support layer 31 at regular intervals along the second direction. In some embodiments, the distribution rule of the bosses 311 along the second direction may be distributed at equal intervals. In some embodiments, the distribution rule of the bosses 311 along the second direction may also be distributed at unequal intervals.
  • the bosses 311 may be distributed along the second direction at regions of both ends of the support layer 31 along the direction. In some embodiments, the ratio of the area where the bosses 311 are distributed at both ends of the support layer 31 along the second direction to the total width of the second direction may be between 10% and 60%. In some embodiments, the bosses 311 may also be disposed through the lower surface of the support layer 31 along the second direction.
  • the distribution interval of the bosses 311 depends on the shape of the bosses. Generally speaking, the distribution interval of the bosses 311 is too large, which may affect the supporting effect of the supporting layer 31 . If the distance between the sub-sections of the bosses 311 is too small, during the bending process of the flexible display panel 100 , the adjacent bosses may be squeezed against each other to generate a pressing force, and the significance of the bosses 311 is lost.
  • the distribution interval of the bosses 311 along the first direction may be between 0.1 mm-2 mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 0.1 mm-1.8 mm.
  • the distribution interval of the bosses 311 along the first direction may be between 0.1 mm-1.5 mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 0.1mm-1.2mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 0.1 mm-1 mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 0.1 mm-0.8 mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 0.2mm-0.8mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 0.3mm-0.8mm.
  • the distribution interval of the bosses 311 along the first direction may be between 0.5mm-1mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be 0.5mm-0.8mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 0.8mm-1.2mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 0.8mm-1.5mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 0.8mm-2mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 1 mm and 2 mm.
  • the distribution interval of the bosses 311 along the first direction may be between 1 mm-1.2 mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 1 mm-1.5 mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 1 mm and 1.8 mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 1.2mm-1.5mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 1.2mm-1.8mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 1.2 mm and 2 mm. In some embodiments, the distribution interval of the bosses 311 along the first direction may be between 1.5mm-2mm.
  • the shape of the boss 311 may include a hemispherical shape, a toothed shape, and an elongated shape.
  • the shape of the boss 311 may be hemispherical.
  • the radius of the hemispherical boss may be between 0.03mm-1mm.
  • the radius of the hemisphere may be between 0.03mm-1mm.
  • the radius of the hemisphere may be between 0.03mm-0.9mm.
  • the radius of the hemisphere may be between 0.03mm-0.8mm.
  • the radius of the hemisphere may be between 0.03mm-0.7mm.
  • the radius of the hemisphere may be between 0.03mm-0.6mm.
  • the radius of the hemisphere may be between 0.03mm-0.5mm.
  • the radius of the hemisphere may be between 0.03mm-0.4mm. In some embodiments, the radius of the hemisphere may be between 0.03mm-0.3mm. In some embodiments, the radius of the hemisphere may be between 0.03mm-0.2mm. In some embodiments, the radius of the hemisphere may be between 0.03mm-0.1mm. In some embodiments, the radius of the hemisphere may be between 0.1 mm-1 mm. In some embodiments, the radius of the hemisphere may be between 0.1 mm-0.7 mm. In some embodiments, the radius of the hemisphere may be between 0.1 mm-0.5 mm. In some embodiments, the radius of the hemisphere may be between 0.1 mm-0.4 mm.
  • the radius of the hemisphere may be between 0.1 mm-0.3 mm. In some embodiments, the radius of the hemisphere may be between 0.1 mm-0.2 mm. In some embodiments, the radius of the hemisphere may be between 0.3mm-0.5mm. In some embodiments, the radius of the hemisphere may be between 0.3mm-0.4mm. In some embodiments, the radius of the hemisphere may be between 0.4mm-0.5mm.
  • the distribution interval of the hemispherical bosses along the first direction may be between 0.1 mm-1 mm. In some embodiments, the distribution interval of the hemispherical bosses along the first direction may be between 0.3mm-1mm. In some embodiments, the distribution interval of the hemispherical bosses along the first direction may be between 0.5mm-1mm. In some embodiments, the distribution interval of the hemispherical bosses along the first direction may be between 0.5mm-0.9mm. In some embodiments, the distribution interval of the hemispherical bosses along the first direction may be between 0.5mm-0.8mm.
  • the distribution interval of the hemispherical bosses along the first direction may be between 0.5mm-0.7mm. In some embodiments, the distribution interval of the hemispherical bosses along the first direction may be between 0.6mm-0.8mm. In some embodiments, the distribution interval of the hemispherical bosses along the first direction may be between 0.6mm-1mm.
  • the shape of the bosses 311 may be rod-toothed.
  • the rod-shaped boss has a trapezoidal cross-section in a plane perpendicular to the predetermined axis 130 .
  • the long side M of the trapezoid is a side close to the display layer 10
  • the short side N of the trapezoid is a side away from the display layer 10 .
  • the value of the long side M of the trapezoid may be between 1 mm and 2 mm. In some embodiments, the value of the long side M of the trapezoid may be between 1 mm and 1.5 mm.
  • the value of the height L of the trapezoid may be between 0.03mm-1mm. In some embodiments, the value of the height L of the trapezoid may be between 0.03mm-0.9mm. In some embodiments, the value of the height L of the trapezoid may be between 0.03mm-0.8mm. In some embodiments, the value of the height L of the trapezoid may be between 0.03mm-0.7mm. In some embodiments, the value of the height L of the trapezoid may be between 0.03mm-0.6mm. In some embodiments, the value of the height L of the trapezoid may be between 0.03mm-0.5mm.
  • the value of the height L of the trapezoid may be between 0.03mm-0.4mm. In some embodiments, the value of the height L of the trapezoid may be between 0.03mm-0.3mm. In some embodiments, the value of the height L of the trapezoid may be between 0.03mm-0.2mm. In some embodiments, the value of the height L of the trapezoid may be between 0.03mm-0.1mm. In some embodiments, the value of the height L of the trapezoid may be between 0.1 mm-1 mm. In some embodiments, the value of the height L of the trapezoid may be between 0.1 mm and 0.7 mm.
  • the value of the height L of the trapezoid may be between 0.1 mm and 0.5 mm. In some embodiments, the value of the height L of the trapezoid may be between 0.1 mm and 0.4 mm. In some embodiments, the value of the height L of the trapezoid may be between 0.1 mm and 0.3 mm. In some embodiments, the value of the height L of the trapezoid may be between 0.1 mm and 0.2 mm. In some embodiments, the value of the height L of the trapezoid may be between 0.3mm-0.5mm. In some embodiments, the value of the height L of the trapezoid may be between 0.3mm-0.4mm. In some embodiments, the value of the height L of the trapezoid may be between 0.4mm-0.5mm.
  • the distribution interval of the rod-shaped bosses along the first direction may be between 0.5mm-1mm. In some embodiments, the distribution interval of the rod-shaped bosses along the first direction may be between 0.5mm-0.9mm. In some embodiments, the distribution interval of the rod-shaped bosses along the first direction may be between 0.5mm-0.8mm. In some embodiments, the distribution interval of the rod-shaped bosses along the first direction may be between 0.5mm-0.7mm. In some embodiments, the distribution interval of the rod-shaped bosses along the first direction may be between 0.5mm-0.6mm. In some embodiments, the distribution interval of the rod-shaped bosses along the first direction may be between 0.6mm-1mm.
  • the distribution interval of the rod-shaped bosses along the first direction may be between 0.7mm-1mm. In some embodiments, the distribution interval of the rod-shaped bosses along the first direction may be between 0.8mm-1mm. In some embodiments, the distribution interval of the rod-shaped bosses along the first direction may be between 0.9mm-1mm.
  • the distribution interval of the toothed bosses along the second direction may be similar to the subsection interval of the hemispherical bosses along the second direction.
  • the specific interval size please refer to the relevant description elsewhere in this application. I won't go into details here.
  • the value of the side length of the rectangle along the first direction is between 0.5mm-2mm. In some embodiments, the value of the side length of the rectangle along the first direction is between 0.5mm-1.5mm. In some embodiments, the value of the side length of the rectangle along the first direction is between 0.5mm-1mm. In some embodiments, the value of the side length of the rectangle along the first direction is between 1 mm and 3 mm. In some embodiments, the value of the side length of the rectangle along the first direction is between 1 mm and 2.5 mm. In some embodiments, the value of the side length of the rectangle along the first direction is between 1 mm and 2 mm. In some embodiments, the value of the side length of the rectangle along the first direction is between 1 mm and 1.5 mm.
  • the value of the side length of the rectangle along the first direction is between 1.5mm-3mm. In some embodiments, the value of the side length of the rectangle along the first direction is between 2mm-3mm. In some embodiments, the value of the side length of the rectangle along the first direction is between 2.5mm-3mm. In some embodiments, the height of the rectangle may have a value between 0.03mm-1mm. In some embodiments, the value of the height of the rectangle may be set similar to the height L of the trapezoid in the rod-tooth-shaped boss. For details, please refer to the description elsewhere in this application, which will not be repeated here.
  • the distribution interval of the elongated bosses along the first direction may be between 1 mm and 2 mm. In some embodiments, the distribution interval of the elongated bosses along the first direction may be between 1.2 mm and 2 mm. In some embodiments, the distribution interval of the elongated bosses along the first direction may be between 1.4mm-2mm. In some embodiments, the distribution interval of the elongated bosses along the first direction may be between 1.6mm-2mm. In some embodiments, the distribution interval of the elongated bosses along the first direction may be between 1.8mm-2mm. In some embodiments, the distribution interval of the elongated bosses along the first direction may be between 1 mm and 1.5 mm.
  • the distribution interval of the elongated bosses along the first direction may be between 1.5mm-2mm. In some embodiments, the distribution interval of the elongated bosses along the first direction may be between 1 mm and 1.8 mm. In some embodiments, the distribution interval of the elongated bosses along the first direction may be between 1 mm and 1.6 mm. In some embodiments, the distribution interval of the elongated bosses along the first direction may be between 1 mm and 1.4 mm. In some embodiments, the distribution interval of the elongated bosses along the first direction may be between 1 mm and 1.2 mm.
  • the plurality of bosses 311 may be made of additional external materials and adhered to the lower surface of the support layer 31 .
  • a plurality of bosses 311 may be disposed on the external film layer, and the side of the external film layer opposite to the position of the bosses 311 is bonded to the lower surface of the support layer 31 to fix the bosses 311 on the lower surface of the support layer 31 .
  • the material of the boss 311 may include, but is not limited to, steel sheet, alloy, glass, and any combination thereof.
  • the adhesive material for bonding the external material and the support layer 31 may include, but is not limited to, optically transparent adhesive, pressure-sensitive adhesive, or heat-sensitive adhesive, and the like.
  • the bosses 311 made of external materials and bonded to the lower surface of the support layer 31 may have similar shapes and sizes as the bosses 311 directly formed on the support layer 31 , and may There are similar distribution rules.
  • shape, size, and distribution rules of the bosses 311 reference may be made to the descriptions elsewhere in this application, which will not be repeated here.
  • the thickness of the boss made of the outer material may be between 0.03mm-1mm. In some embodiments, the thickness of the boss made of the outer material may be between 0.03mm-0.5mm. In some embodiments, the thickness of the boss made of the outer material may be between 0.03mm-0.4mm. In some embodiments, the thickness of the boss made of the outer material may be between 0.03mm-0.3mm. In some embodiments, the thickness of the boss made of the outer material may be between 0.03mm-0.1mm.
  • the bosses 311 can also be adhered to the lower surface of the overlapping portion 42 of the covering member 40 .
  • the total thickness of the boss 311 and the overlapping portion 42 is between 0.03mm-1mm.
  • the flexible display panel 100 of the embodiments of the present application may be applied to the display device 1000 .
  • the display device 1000 may include a limiting groove 300 for limiting each film layer in the flexible display panel 100 The movement in the direction perpendicular to the display surface prevents the various film layers in the flexible display panel 100 from spreading apart from each other in the direction perpendicular to the display surface, resulting in splitting.
  • the display device 1000 may include a flexible display panel 100 , a rotating shaft 200 and a limiting slot 300 .
  • the flexible display panel 100 may include a non-curved part 110 that is always displayed on the display screen of the display device 1000 and a curved part 120 that can be bent and accommodated in the inner space of the display device 1000 through the rotating shaft 200 .
  • the curved portion 120 of the flexible display panel 100 may be pulled out from the outlet end 400 of the receiving area (eg, the backside of the non-curved portion 110 ) through the rotating shaft 200 in the first direction, as an optional presentation of the extended display area on the display screen of the display device 1000 .
  • the display device 1000 may include two limiting grooves arranged oppositely.
  • the limiting grooves 300 may be disposed at both ends of the flexible display panel 100 along the second direction to limit the movement of the flexible display panel 100 along a direction perpendicular to the display surface.
  • the limiting groove 300 is disposed near the outlet end 400 along the first direction, so that the film layer of the bending portion 120 can enter the limiting groove 300 for limiting after being pulled out along the rotating shaft 200 .
  • the spacing distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 1 mm and 5 mm.
  • the spacing distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 1 mm and 4.5 mm. In some embodiments, the spaced distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 1 mm and 4 mm. In some embodiments, the distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 1mm-3.5mm. In some embodiments, the distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 1 mm and 3 mm. In some embodiments, the distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 1 mm and 2.5 mm.
  • the spaced distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 1 mm and 2 mm. In some embodiments, the spacing distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 1 mm and 1.5 mm. In some embodiments, the spacing distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 1.5mm-5mm. In some embodiments, the spacing distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 2mm-5mm. In some embodiments, the spaced distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 2.5mm-5mm.
  • the spacing distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 3mm-5mm. In some embodiments, the distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 3.5mm-5mm. In some embodiments, the spacing distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 4mm-5mm. In some embodiments, the distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 4.5mm-5mm. In some embodiments, the spacing distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 2mm-3mm. In some embodiments, the spacing distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 3mm-4mm. In some embodiments, the spacing distance between the limiting groove 300 and the outlet end 400 along the first direction may be between 2mm-4mm.
  • the display device 1000 may include a first rotating shaft and a second rotating shaft (not shown in the figure) that are relatively distributed, and two sets of limit grooves respectively disposed near the exit end of the first rotating shaft and the exit end of the second rotating shaft .
  • the flexible display panel 100 may include a non-curved portion and a first curved portion and a second curved portion distributed on both sides of the non-curved portion along the first direction.
  • the first curved portion and the second curved portion may be bent and stored in the inner space of the display device 1000 around the first and second rotational axes, respectively, and can be moved from the first rotational axis and the second rotational axis from the first rotational axis to the second rotational axis when extended display is required.
  • the storage area is pulled out.
  • two sets of limiting grooves disposed near the outlet end of the first rotating shaft and the exit end of the second rotating shaft can limit the first bending portion and the second bending portion respectively, preventing the first bending portion and the second bending portion. The phenomenon that the film layer spreads out during the pull-out process.
  • the curved portion 120 includes a limit edge 122 restricted by the limit slot 300 to move in a direction perpendicular to the display surface, and the limit edge 122 can be in the inner gap 301 of the limit slot 300 along the first Move in one direction.
  • the limiting edge 122 is at least a part of the non-display area of the curved portion 120 along the second direction.
  • the height of the inner gap 301 of the limiting groove 300 ie, the distance between the upper surface and the lower surface of the inner gap 301
  • the difference is ⁇ 0.05mm). within).
  • the thickness of the limiting edge 122 may be equal to or slightly greater than (the difference is within 0.05mm) the height of the internal gap 301.
  • the limiting groove 300 when the film layers of the bending portion 120 tend to spread apart perpendicular to the display surface, since the limiting groove 300 restricts the movement of the limiting edge 122 in this direction, the limiting groove 300 will bend The portion 120 produces a force that opposes its tendency to unravel, counteracting the tendency of each film layer to unravel.
  • the thickness of the limiting edge 122 may be equal to or slightly smaller than (within 0.05mm) the thickness of the inner gap 301 . high.
  • the curved portion 120 when the thickness of the limiting edge 122 is less than or equal to the height of the inner gap 301 , the curved portion 120 will not be subjected to the pressing force of the limiting groove 300 , and the curved portion 120 will not be affected by the limiting groove 300 when sliding. the effect of friction. In some embodiments, when the thickness of the limiting edge 122 is greater than the height of the inner gap 301 , the curved portion 120 is pressed by the limiting groove 300 , and the curved portion 120 is acted by the frictional force of the limiting groove 300 when sliding.
  • the curved portion 120 may include a plurality of protrusions 121 disposed on the limiting edge 122 .
  • the top of the protrusion 121 can be in contact with the inner wall of the limiting groove 300 to improve the limiting effect of the limiting groove 300 on the limiting edge 122 .
  • the protrusion 121 when the limiting edge 122 moves in the inner gap 301 of the limiting slot 300, the protrusion 121 has a smaller contact area than when the limiting edge 122 contacts the inner wall of the limiting slot 300, which can effectively The frictional force between the bending portion 120 and the limiting groove 300 is reduced.
  • the protrusion 121 may be disposed on one of the upper surface or the lower surface of the limiting edge 122 . In some embodiments, the protrusions 121 may be disposed on the upper surface and the lower surface of the limiting edge 122 at the same time.
  • the shape of the protrusion 121 may include, but is not limited to, a hemispherical shape, a rod-shaped shape, a long wall shape, a wavy shape, and the like. In some embodiments, the protrusions 121 may be disposed on the upper and lower surfaces of the limiting edge 122 .
  • the plurality of protrusions 121 may be distributed along the first direction on the limiting edge 122 at intervals. In some embodiments, the subdivision interval of the protrusions 121 on the limiting edge 122 along the first direction may be between 0.5 mm and 3 mm. In some embodiments, the subdivision interval of the protrusions 121 on the limiting edge 122 along the first direction may be between 0.8 mm and 2 mm. In some embodiments, the subdivision interval of the protrusions 121 on the limiting edge 122 along the first direction may be between 1 mm and 2 mm. In some embodiments, the plurality of protrusions 121 may be spaced apart along the second direction on the limiting edge 122 .
  • the subdivision interval of the protrusions 121 on the limiting edge 122 along the second direction may be between 1 mm and 4 mm. In some embodiments, the sub-section interval of the protrusions 121 on the limiting edge 122 along the second direction may be between 1 mm and 3 mm. In some embodiments, the subdivision interval of the protrusions 121 on the limiting edge 122 along the second direction may be between 2 mm and 3 mm. In some embodiments, only one protrusion 121 may be provided on the limiting edge 122 along the second direction.
  • the material of the protrusions 121 may be a hard material. In some embodiments, the material of the protrusion 121 may include, but is not limited to, steel, alloy, glass, and the like.
  • the beneficial effects that may be brought about by one or more embodiments disclosed in the present application include, but are not limited to: (1) The cover provided by one or more embodiments of the present application can cover and reinforce the display layer and the flexible display panel , effectively improving the bonding force between the display layer and each film layer of the flexible display panel; (2) The covering provided by one or more embodiments of the present application is formed by the inner film layer of the flexible display panel, which can more directly wrap It is covered on the display layer to improve the reinforcement effect of the inner film layer of the display layer; (3) the support layer provided by one or more embodiments of the present application includes a plurality of bosses arranged in a distributed manner, which can effectively reduce the bending of the flexible display panel. The bending stress generated in the process can effectively prevent the film layers of the flexible display panel from being dislocated due to excessive bending stress; The movement in the direction of the display surface can effectively prevent the film layers of the flexible display panel from being split and split.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种柔性显示面板（100）以及显示设备，包括：显示层（10），位于显示层（10）上面的第一层组（20），以及位于显示层（10）下面的第二层组（30）；柔性显示面板（100）的至少部分可以围绕一个预定轴线弯曲，其弯曲的角度大于120°；第一层组（20）包括至少一个膜层；第二层组（30）包括至少一个支撑层（31），支撑层（31）包含刚性材料。

Description

一种柔性显示面板以及显示设备 技术领域
本申请涉及显示设备技术领域，特别涉及一种柔性显示面板以及显示设备。
背景技术
随着显示技术的发展，一种可以被多次弯折的柔性显示设备逐渐进入市场，并愈发受到业内重视。
由于这种柔性显示设备的柔性显示面板被用户多次弯折后，弯曲应力很容易在柔性显示面板内各膜层间累积，从而使柔性显示面板的各膜层发生膜层错位或膜层劈裂的现象。
因此，需要提供一种层间结合更稳定、弯曲应力不易累积的柔性显示面板，以减少膜层错位或膜层劈裂的发生。
发明内容
本申请实施例之一提供一种柔性显示面板，包括：显示层，位于所述显示层上面的第一层组，以及位于所述显示层下面的第二层组；所述柔性显示设备的至少部分可以围绕一个预定轴线弯曲，其弯曲的角度大于120°；所述第一层组包括至少一个膜层；所述第二层组包括至少一个支撑层，所述支撑层包含刚性材料。
在一些实施例中，所述柔性显示面板还包括：包覆件，所述包覆件包覆如下至少一个：所述显示层的边沿、所述第一层组的边沿和所述第二层组的边沿。
在一些实施例中，所述第一层组包括盖板层和第一胶粘膜层。
在一些实施例中，所述第一胶粘膜层包覆所述显示层和所述第二层组的至少部分形成所述包覆件。
在一些实施例中，所述第一胶粘膜层沿与所述预定轴线平行的方向具有长度超出对应的所述显示层的长度的延伸部，所述延伸部部分延伸至所述第二层组的下表面形成所述包覆件。
在一些实施例中，所述第一胶粘膜层延伸至所述第二层组下表面的部分沿所述预订轴线平行的方向的长度在1mm～5mm之间。
在一些实施例中，所述第一胶粘膜层延伸至所述第二层组下表面的部分的厚度在0.025mm-0.5mm之间。
在一些实施例中，所述第一胶粘膜层的材料包括光学透明胶。
在一些实施例中，所述第二层组包括支撑层和第二胶粘膜层。
在一些实施例中，所述第二胶粘膜层包覆所述显示层和所述第一层组的至少部分形成所述包覆件。
在一些实施例中，所述第二胶粘膜层沿与所述预定轴线平行的方向具有长度超出对应的所述显示层的长度的延伸部，所述延伸部部分延伸至所述第一层组的上表面形成所述包覆件。
在一些实施例中，所述第二胶粘膜层延伸至所述第一层组上表面的部分沿所述预订轴线平行的方向的长度在0.7mm～3mm之间。
在一些实施例中，所述第二胶粘膜层延伸至所述第一层组上表面的部分的厚度在0.025mm-0.5mm之间。
在一些实施例中，所述第二胶粘膜层的材料包括压敏胶或者光学透明胶。
在一些实施例中，所述第一层组包括盖板层和第一胶粘膜层，所述第二层组包括支撑层和第二胶粘膜层，所述第一胶粘膜层和所述第二胶粘膜层相互接合形成所述包覆件。
在一些实施例中，所述第一胶粘膜层沿与所述预定轴线平行的方向具有长度超出对应的所述显示层的长度的第一延伸部；所述第二胶粘膜层沿与所述预定轴线平行的方向具有长度超出对应的所述显示层的长度的第二延伸部；所述第一延伸部与所述第二延伸部相互接合形成所述包覆件。
在一些实施例中，所述第一胶粘膜层和所述第二胶粘膜层的材料相同。
在一些实施例中，所述第二层组包括缓冲膜层。
在一些实施例中，所述缓冲膜层包覆所述显示层和所述第一层组的至少部分形成所述包覆件。
在一些实施例中，所述缓冲膜层沿与所述预定轴线平行的方向具有长度超出对应的所述显示层的长度的延伸部，所述延伸部部分延伸至所述第一层组的上表面形成所述包覆件。
在一些实施例中，所述缓冲膜层延伸至所述第一层组上表面的部分沿与所述预订轴线平行的方向的长度在0.7mm～3mm之间。
在一些实施例中，所述缓冲膜层延伸至所述第一层组上表面的部分的厚度在0.025mm-0.5mm之间。
在一些实施例中，所述缓冲膜层的材料包括泡棉、凝胶或硅胶。
在一些实施例中，所述包覆件的封包部分外表面无粘性。
在一些实施例中，所述第二层组的下表面的至少部分包括分布设置的多个凸台。
在一些实施例中，所述凸台沿垂直于所述预定轴线的方向的分布间隔为0.1mm-2mm。
在一些实施例中，所述凸台的形状包括半球形、啮齿形以及长条形。
在一些实施例中，所述凸台在所述支撑层上加工形成。
在一些实施例中，所述凸台粘接在所述支撑层的下表面。
在一些实施例中，所述凸台的材料包括钢片、合金或玻璃。
本申请实施例之一提供一种显示设备，包括一个柔性显示面板，所述柔性显示面板包括：显示层，位于所述显示层上面的第一层组，以及位于所述显示层下面的第二层组；所述柔性显示面板的至少部分可以围绕一个预定轴线弯曲，其弯曲的角度大于120°；所述第一层组包括至少一个膜层；所述第二层组包括至少一个支撑层，所述支撑层包含刚性材料。
在一些实施例中，所述显示设备还包括：转轴，所述柔性显示面板的至少一部分能够绕所述转轴弯曲；至少一组限位槽，设置于所述柔性显示面板沿与所述预定轴线平行的方向的两端；所述限位槽限制所述柔性显示面板沿垂直于显示面的方向的运动。
在一些实施例中，所述柔性显示面板沿与所述预定轴线平行的方向的非显示区域的至少部分在所述限位槽中沿第一方向滑动。
在一些实施例中，所述柔性显示面板位于所述限位槽内部的区域的上表面和/或下表面分布设置有多个凸起，所述凸起能够减小所述柔性显示面板与所述限位槽的接触面积。
附图说明
本申请将以示例性实施例的方式进一步说明，这些示例性实施例将通过附图进行详细描述。这些实施例并非限制性的，在这些实施例中，相同的编号表示相同的结构，其中：
图1是根据本申请的一些实施例所示的显示设备的部分结构示意图之一；
图2是根据本申请的一些实施例所示的柔性显示面板的结构示意图之一；
图3是根据本申请的一些实施例所示的显示设备的部分结构示意图之二；
图4A是根据本申请的一些实施例所示的柔性显示面板的结构示意图之二；
图4B是根据本申请的一些实施例所示的柔性显示面板的结构示意图之三；
图5是根据本申请的图4A中区域A的局部放大示意图；
图6是根据本申请的一些实施例所示的柔性显示面板的包覆件制作流程示意图之一；
图7是根据本申请的一些实施例所示的柔性显示面板的结构示意图之四；
图8是根据本申请的图7中区域B的局部放大示意图；
图9是根据本申请的一些实施例所示的柔性显示面板的包覆件制作流程示意图之二；
图10是根据本申请的一些实施例所示的柔性显示面板的结构示意图之五；
图11是根据本申请的一些实施例所示的柔性显示面板的包覆件制作流程示意图之三；
图12是根据本申请的一些实施例所示的显示设备的部分结构示意图之三；
图13是根据本申请的一些实施例所示的显示设备的部分结构示意图之四；
图14是根据本申请的图13中区域C的局部放大示意图；
图15是根据本申请的一些实施例所示的显示设备的部分结构示意图之五；
图16是根据本申请的一些实施例所示的显示设备的部分结构示意图之六；
图17是根据本申请的一些实施例所示的显示设备的部分结构示意图之七。
具体实施方式
这里将详细地对示例性实施例或实施方式进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
在本申请使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请。在本申请和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
应当理解，本申请说明书以及权利要求书中使用的“第一”“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。除非另行 指出，“前部”、“后部”、“下部”和/或“上部”等类似词语只是为了便于说明，而并非限于一个位置或者一种空间定向。“包括”或者“包含”等类似词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同，并不排除其他元件或者物件。
本申请一个或多个实施例的柔性显示面板可以应用于不同的电子产品的显示设备。不同的电子产品可以包括但不限于手机、个人电脑、键盘、显示器、电视机、车载显示终端、电子书等各种终端设备。
本申请一些实施例的柔性显示面板具有显示区域，该显示区域可以显示内容以供用户观看。柔性显示面板包括非弯曲部和弯曲部，显示区域位于非弯曲部和弯曲部上。在柔性显示面板的弯曲部被弯折、弯曲而改变形态时，用户可以观察到的显示区域的面积也会随之变化。在一些实施例中，柔性显示面板所露出于用户视野中的显示区域可以作为滑移屏手机的显示屏，柔性显示面板的弯曲部通过转轴弯曲后收纳于主显示区域背面或直接卷绕在转轴上，用户可以根据需求选择将柔性显示面板的弯曲部收纳至显示区域背面或直接卷绕在转轴上，来降低柔性显示面板所露出的显示区域的面积，以使得柔性显示设备更便携；用户还可以选择将柔性显示面板的弯曲部从显示区域背后拉出，来增大柔性显示面板所露出的显示区域的面积，以显示更多内容。
在一些实施例中，参见图1，柔性显示面板100可以包括非弯曲部110和弯曲部120，显示区域101位于非弯曲部110和弯曲部120的正面，弯曲部120可以通过绕预定轴线130弯曲后，收纳于非弯曲部110的背面，其中，柔性显示面板100用于显示的表面可以理解为正面，与其相背的表面可以理解为背面。在一些实施例中，弯曲部120的部分或全部可以绕预定轴线130相对于非弯曲部110的正面弯曲。在一些实施例中，弯曲部120绕预定轴线130的弯曲角度可以是大于120°；在一些实施例中，弯曲部120绕预定轴线130的弯曲角度可以是大于150°；在一些实施例中，弯曲部120绕预定轴线130的弯曲角度可以是大于170°；在一些实施例中，弯曲部120绕预定轴线130的弯曲角度可以是接近180°(在正负5°以内)；在一些实施例中，弯曲部120绕预定轴线130的弯曲角度可以是远大于180°，即可以围绕固定轴卷曲。弯曲部120绕预定轴线130的弯曲角度是指，弯曲部120的部分或全部绕预定轴线130弯曲后，弯曲部120中已弯曲的部分的正面相对于非弯曲部110的正面所改变的角度。在一些实施例中，非弯曲部110和弯曲部120均可以用于显示图像。在一些实施例中，弯曲部120在第一方向的刚度小于其在第二方向的刚度。参见图1，本申请中的第一方向是指柔性显 示屏与预定轴线130垂直或基本垂直的方向；柔性显示屏与预定轴线130平行或基本平行的方向为第二方向。本申请中的基本垂直是指，在相对于垂直的方向上，可以允许存在少量误差，该误差可以在正负5°以内。在一些实施例中，该误差可以在±4°之间。在一些实施例中，该误差可以在±3°之间。在一些实施例中，该误差可以在1°之间。在一些实施例中，弯曲部120在第一方向的刚度在0.01GPa～100GPa之间；在一些实施例中，弯曲部120在第一方向的刚度在0.01GPa～50GPa之间；在一些实施例中，弯曲部120在第一方向的刚度在0.01GPa～20Gpa之间；在一些实施例中，弯曲部120在第一方向的刚度在0.01GPa～10GPa之间；在一些实施例中，弯曲部120在第一方向的刚度在0.01GPa～5GPa之间；在一些实施例中，弯曲部120在第一方向的刚度在0.01GPa～1GPa之间。在一些实施例中，弯曲部120在第二方向的刚度在10GPa～1000GPa之间；在一些实施例中，弯曲部120在第二方向的刚度在10GPa～800GPa之间；在一些实施例中，弯曲部120在第二方向的刚度在10GPa～500GPa之间；在一些实施例中，弯曲部120在第二方向的刚度在10GPa～300GPa之间。
在一些实施例中，柔性显示面板100可以应用于显示设备1000。在一些实施例中，参见图1，显示设备1000可以包括柔性显示面板100和转轴200。在一些实施例中，显示设备1000可以具有面积可变的显示屏。在一些实施例中，柔性显示面板100呈现于用户视野中的显示区域101可以作为显示设备1000的显示屏。在一些实施例中，柔性显示面板100的弯曲部120的部分或全部绕转轴200弯曲后收纳于显示设备1000的收纳区域，其中，弯曲部120位于转轴200上以及位于收纳区域中的部分对用户不可见，位于收纳区域及转轴200以外的部分对用户可见。在一些实施例中，非弯曲部110和弯曲部120中对用户可见的部分所对应的显示区域可以作为显示设备1000的显示屏。在一些实施例中，柔性显示面板100的弯曲部120可以沿第一方向经过转轴200从收纳区域(例如，非弯曲部110的背面)拉出，作为扩展显示区域可选择的呈现在用户的视野中，成为显示设备1000的显示屏的一部分，并扩大显示屏的面积。在一些实施例中，弯曲部120也可以经过转轴200卷入非弯曲部110的背面进行收纳，并减小显示屏的面积。在一些实施例中，当弯曲部120弯曲收纳于柔性显示面板100的背面时，这部分显示区域不会被用户观察到，该部分的显示区域可以被设定成息屏状态；当弯曲部120绕转轴200的至少一部分被拉出至柔性显示面板100的正面时，返回正面的这一部分显示区域可以转变为亮屏状态并显示内容，从而增大用户可以看到的显示区域的面积。
在一些实施例中，显示设备1000可以包括相对分布的第一转轴和第二转轴。在 一些实施例中，柔性显示面板100可以包括非弯曲部以及沿第一方向分布于非弯曲部两侧的第一弯曲部和第二弯曲部。在一些实施例中，第一弯曲部和第二弯曲部可以分别绕第一转轴和第二转轴弯曲收纳于显示设备1000内部空间，并在需要进行扩展显示时经第一转轴和第二转轴分别从其收纳区域拉出。
在一些实施例中，参见图2，柔性显示面板100可以包括：显示层10、第一层组20以及第二层组30，其中，第一层组20位于显示层10的上面，第二层组30位于显示层的下面。本申请所指的上和下表示相对于柔性显示面板100的非弯曲部110的显示面的正面和背面的方向，柔性显示面板100显示面的正面所在方向为上，柔性显示面板100显示面的背面所在方向为下。
在一些实施例中，显示层10用于显示图像。在一些实施例中，显示层10中用于图像显示的显示器件的类型可以包括但不限于：有机发光二极管(Organic Light Emitting Diode，OLED)、发光二极管(Light Emitting Diode，LED)、微发光二极管(Micro Light Emitting Diode，Micro LED)、次毫米发光二极管(Mini Light Emitting Diode，Mini LED)等。
在一些实施例中，显示层10可以是多层结构。在一些实施例中，显示层10可以包括显示器件层、阵列结构层、柔性衬底。其中，各层的顺序从下往上依次为柔性衬底、阵列结构层、显示器件层，即显示器件层可以位于显示层10的最上层，阵列结构层可以位于显示器件层与柔性衬底之间，柔性衬底可以位于显示层10的最底层。在一些实施例中，显示器件层可以包括发出光线的膜层。在一些实施例中，显示器件层可以包括有机发光二极管(Organic Light Emitting Diode，OLED)发光层，OLED发光层包括多个呈阵列排布的像素单元，这些像素单元发出光线以使得显示器件层能够显示图像。在一些实施例中，阵列结构层可以用于为显示器件层提供与显示相关的控制器件。在一些实施例中，阵列结构层可以包括像素驱动电路，像素驱动电路与显示器件层3电性链接以用于控制显示器件层的显示图像。在一些实施例中，像素驱动电路可以包括但不限于TFT(Thin Film Transistor)器件和电容器件等。在一些实施例中，柔性衬底可以是显示层10的基材膜层，用于支撑显示器件层和阵列结构层。在一些实施例中，柔性衬底的材料可以包括但不限于聚酰亚胺(Polyimide，PI)材料、聚对苯二甲酸乙二醇酯(Polyethylene terephthalate，PET)材料、聚苯并咪唑(Polybenzimidazoles，PBI)材料、聚醚醚酮(Polyetheretherketone，PEEK)材料、聚偏氟乙烯(Polyvinylidene fluoride，PVDF)材料、聚醚类塑料(Polyphenylenesulphide，PPS)材料，以及上述材料的任意 组合。在一些实施例中，在柔性衬底的若干组合材料中，聚酰亚胺的质量占比为50％～100％；在一些实施例中，在柔性衬底的若干组合材料中，聚酰亚胺的质量占比为60％～90％。在一些实施例中，聚对苯二甲酸乙二醇酯的质量占比为0～20％；在一些实施例中，聚对苯二甲酸乙二醇酯的质量占比为0～10％；在一些实施例中，聚对苯二甲酸乙二醇酯的质量占比为0～4％。在一些实施例中，聚苯并咪唑的质量占比为0～30％；在一些实施例中，聚苯并咪唑的质量占比为5～20％；在一些实施例中，聚醚醚酮的质量占比为0～4％。在一些实施例中，聚偏氟乙烯的质量占比为0～10％；在一些实施例中，聚偏氟乙烯的质量占比为0～5％。在一些实施例中，聚醚类塑料的质量占比为0～10％；在一些实施例中，聚醚类塑料的质量占比为0～5％。
在一些实施例中，第一层组20可以包括盖板保护层21和第一胶粘膜层22，其中，盖板层21通过第一胶粘膜层22粘接在显示层10的上表面。在一些实施例中，盖板层21可以用于防止显示层10在使用过程中发生损伤。在一些实施例中，盖板层21可以由同时具有柔韧性、高硬度以及高透光率的材料制成。在一些实施例中，盖板层21的材料可以包括但不限于聚酰亚胺(Polyimide，PI)材料、无色聚酰亚胺(Colorless Polyimide，CPI)材料、光学聚对苯二甲酸类(Polyethylene terephthalate，PET)塑料、芳纶(Nomex)材料以及超薄柔性玻璃(Ultra-thin glass，UTG)材料。在一些实施例中，第一胶粘膜层22可以是具有高透光性的胶材。在一些实施例中，第一胶粘膜层22可以是光学透明胶(Optically Clear Adhesive，OCA)。
在一些实施例中，第一层组20还可以包括光学膜层(图中未示出)，用于辅助显示层10显示图像。在一些实施例中，光学膜层可以包括偏光片。在一些实施例中，偏光片可以设置于盖板层21与显示层10之间，并通过具有高透光性的胶材(例如，OCA)与显示层10粘接。
在一些实施例中，第一层组20还可以包括触控层(图中未示出)，用于接收用户的触摸操作，以实现用户对显示层10显示的图像进行触控操作的功能。在一些实施例中，触控层可以设置于盖板层21与显示层10之间，并通过具有高透光性的胶材(例如，OCA)与显示层10粘接。在一些实施例中，触控层可以包括触控器件，用于使用户对所述柔性显示面板100进行触摸控制。在一些实施例中，触控层可以包括非接触式感应器件，用于使用户通过相关姿势来对柔性显示面板100的控制。
在一些实施例中，第一层组20还可以同时包括偏光片和触控层，其中，触控层可以设置于显示层10的上表面，偏光片设置于触控层的上表面，柔性盖板设置于偏光 片的上表面。在一些实施例中，柔性显示面板100的各膜层之间可以通过具有高透光性的胶材(例如，OCA)进行粘接。
在一些实施例中，第二层组30可以包括支撑层31和第二胶粘膜层32，其中支撑层31通过第二胶粘膜层32粘接在显示层10的下表面。在一些实施例中，支撑层31可以用于支撑显示层10，提高柔性显示面板100的刚性。在一些实施例中，支撑层31可以包括刚性材料。在一些实施例中，刚性材料可以是具有较高杨氏模量的材料。在一些实施例中，所述杨氏模量的范围可以是xx～xx；优选的，可以是xx～xx；进一步优选的，可以是xx～xx。在一些实施例中，刚性材料可以包括但不限于钢片、合金以及柔性玻璃。在一些实施例中，第二胶粘膜层32可以包括但不限于压敏胶(Pressure sensitive adhesive，PSA)、光学透明胶(OCA)、光敏胶以及热敏胶等等。
在一些实施例中，第二层组30还可以包括缓冲膜层。在一些实施例中，缓冲膜层可以用于为显示层10提供缓冲作用，减少显示层10在受到外力冲击时的影响。在一些实施例中，缓冲膜层可以通过胶材与显示层10以及第二层组30中的其他膜层粘接。例如，缓冲膜层可以通过压敏胶粘接于显示层10的下表面和支撑层31的上表面之间。在一些实施例中，缓冲膜层的材料可以包括泡棉、XX或XX。在一些实施例中，用于粘接缓冲膜层的胶材可以包括但不限于压敏胶(PSA)、光学透明胶(OCA)、光敏胶以及热敏胶等。
由于柔性显示面板100以及显示层10本身均为多层结构，当柔性显示面板100的弯曲部120绕转轴200进行弯曲时，多层结构的各个膜层因其弯曲半径不同，各膜层中所产生的弯曲应力不同，靠近转轴200的膜层所受到的弯曲应力相比于远离转轴200的膜层所受到的弯曲应力更大。因此，柔性显示面板100及其显示层10在弯曲过程中，容易发生膜层错位或膜层劈裂现象。
在一些实施例中，通过提高显示层10中各膜层之间的结合强度的方式，可以防止显示层10中膜层错位现象的发生。在一些实施例中，为了提高显示层10中各膜层之间的结合强度，减小膜层错位发生的可能性，柔性显示面板100可以包括包覆件40，用于对显示层10进行包覆加固，增强显示层10的各膜层间以及显示层10与其它膜层间的结合力并限制其错位与移动。
在一些实施例中，参见图3，柔性显示面板100还可以包括包覆件40，用于包覆至少显示层10、第一层组20和第二层组30中一层的至少一部分。在一些实施例中，包覆件40可以包覆显示层10的至少部分区域。在一些实施例中，包覆件40可以包覆 显示层10对应于弯曲部120的部分。在一些实施例中，包覆件40可以整体包覆显示层10。在一些实施例中，包覆件40可以包覆显示层10的边沿。在一些实施例中，显示层10的边沿可以对应于柔性显示面板100的非显示区域。非显示区域指柔性显示面板100中不具有图像显示功能的区域。
在一些实施例中，包覆件40可以同时包覆显示层10和第一层组20的至少部分区域。在一些实施例中，包覆件40可以包覆第一层组20的边沿。在一些实施例中，包覆件40可以对显示层10和第一层组20进行整体包覆。在一些实施例中，包覆件40可以仅包覆显示层10和第一层组20对应于弯曲部120的部分。在一些实施例中，包覆件40可以仅包覆显示层10和第一层组20的边沿对应于柔性显示面板100的非显示区域的部分。
在一些实施例中，包覆件40可以同时包覆显示层10和第二层组30的至少部分区域。在一些实施例中，包覆件40可以包覆第一层组30的边沿。在一些实施例中，包覆件40可以对显示层10和第二层组30进行整体包覆。在一些实施例中，包覆件40可以仅包覆显示层10和第二层组30对应于弯曲部120的部分。在一些实施例中，包覆件40可以仅包覆显示层10和第二层组30的边沿对应于柔性显示面板100的非显示区域的部分。
在一些实施例中，包覆件40可以由柔性显示面板100的内部膜层形成。在一些实施例中，包覆件40可以由第一胶粘膜层22形成。在一些实施例中，包覆件40可以由第二胶粘膜层32形成。在一些实施例中，包覆件40可以由缓冲膜层形成。
在一些实施例中，参见图4，包覆件40可以包括叠覆部分42以及封包部分43。在一些实施例中，叠覆部分42可以是形成包覆件40的膜层叠覆于第一层组20的上表面或第二层组30的下表面的部分。在一些实施例中，封包部分43可以是形成包覆件40的膜层位于显示层10沿第二方向的外侧的部分。在一些实施例中，包覆件40可以不包括叠覆部分42，只包括封包部分43。在一些实施例中，包覆件40可以由第一胶粘膜层22和第二胶粘膜层32相互接合构成，用于接合第一胶粘膜层22和第二胶粘膜层32的部分为包覆件40的封包部分43。
在一些实施例中，叠覆部分42的内表面具有粘性，而外表面无粘性，其中，叠覆部分42的内表面是指叠覆部分42与第一层组20的上表面或第二层组30的下表面相接触的表面，与其相背的表面为叠覆部分42的外表面。在一些实施例中，封包部分43的外表面无粘性，其中，封包部分43的外表面是指封包部分43背离显示层10的位 置的表面，封包部分43朝向显示层10的位置的表面为内表面。在一些实施例中，封包部分43的内表面可以具有粘性，也可以不具有粘性。在一些实施例中，包覆件40无粘性的表面可以通过固化处理获得。在一些实施例中，包覆件40由胶粘膜层(如，第一胶粘膜层22或第二胶粘膜层32)形成，胶粘膜层形成包覆件40后，可以对叠覆部分42和封包部分43的外表面部分的胶材进行表面固化处理，获得无粘性表面。在一些实施例中，包覆件40无粘性的表面可以通过不涂覆胶材获得。在一些实施例中，包覆件40由非胶粘膜层(如，缓冲膜层)形成，非胶粘膜层对应于叠覆部分42和封包部分43的外表面的部分可以不涂覆胶材。在一些实施例中，胶粘膜层形成包覆件40后，可以对叠覆部分42和封包部分43进行整体固化处理，以增大叠覆部分42和封包部分43的强度，提高包覆件40的包覆效果。在一些实施例中，胶粘膜层形成包覆件40后，也可以不进行固化处理，以使包覆件40保持更高的柔韧性，提高其缓冲性能。
在一些实施例中，第一层组20可以包括盖板层21和第一胶粘膜层22，第二层组30可以包括支撑层31和第二胶粘膜层32。参见图4A，柔性显示面板100由上到下分别包括盖板层21、第一胶粘膜层22、显示层10、第二胶粘膜层32以及支撑层31。在一些实施例中，第一层组20也可以包括光学膜层(图中未示出)。在一些实施例中，光学膜层可以设置于第一胶粘膜层22与显示层10之间。在一些实施例中，光学膜层可以包括偏光片(Polarizer，POL)。在一些实施例中，第一层组20也可以包括触控层(图中未示出)。在一些实施例中，触控层可以设置于第一胶粘膜层22与显示层10之间。在一些实施例中，第一层组20也可以同时包括光学膜层和触控层。在一些实施例中，光学膜层可以设置于第一胶粘膜层22和触控层之间，触控层可以设置于光学膜层和显示层10之间。在一些实施例中，柔性显示面板100由上到下分别包括盖板层21、第一胶粘膜层22、光学膜层、触控层、显示层10、第二胶粘膜层32以及支撑层31。
在一些实施例中，参见图4，柔性显示面板100还可以包括由第一胶粘膜层22形成的包覆件40。在一些实施例中，第一胶粘膜层22可以包覆显示层10和第二层组30的至少部分形成包覆件40。在一些实施例中，第一胶粘膜层22可以包覆光学膜层、显示层10和第二层组30的至少部分形成包覆件40。在一些实施例中，第一胶粘膜层22可以包覆触控层、显示层10和第二层组30的至少部分形成包覆件40。在一些实施例中，第一胶粘膜层22可以包覆光学膜层、触控层、显示层10和第二层组30的至少部分形成包覆件40。在一些实施例中，包覆件40可以包括叠覆部分42和封包部分43。在一些实施例中，叠覆部分42位于支撑层31的下表面，封包部分43位于显示层10沿 预定轴线130方向的外侧。在一些实施例中，包覆件40可以包覆于柔性显示面板100沿第二方向的任意一侧。在一些实施例中，包覆件40也可以包覆于柔性显示面板100沿第二方向的两侧。
在一些实施例中，参见图4A和4B，第一胶粘膜层22沿第二方向(与所述预定轴线130平行的方向)具有长度超出对应的显示层10的长度的延伸部221，所述延伸部221部分延伸至第二层组30的下表面，使第一胶粘膜层22部分延伸，该延伸部分构成包覆件40。在一些实施例中，延伸部221中延伸至第二层组30的下表面的部分可以形成包覆件40的叠覆部分42。在一些实施例中，延伸部221中未延伸至第二层组30的下表面的部分形成包覆件40的封包部分43，用于封包第一胶粘膜层22与叠覆部分42之间的膜层。封包部分43所包含的第一胶粘膜层22和叠覆部分42之间的膜层称为被封包膜层。在一些实施例中，封包部分43所封包的膜层(即被封包膜层)可以包括显示层10、第二胶粘膜层32和支撑层31。在一些实施例中，被封包膜层可以包括光学膜层、显示层10、第二胶粘膜层32和支撑层31。在一些实施例中，被封包膜层可以包括触控层、显示层10、第二胶粘膜层32和支撑层31。在一些实施例中，被封包膜层可以包括光学膜层、触控层、显示层10、第二胶粘膜层32和支撑层31。
在一些实施例中，参见图4A，封包部分43与被封包膜层之间可以存在一定的间隙。在一些实施例中，封包部分43与被封包膜层之间的间隙可以使得被封包的各膜层在受到弯曲应力作用时，各膜层之间允许存在少量错动而释放部分弯曲应力，并且，封包部分43对各膜层之间的连接作用会阻止被封包的各膜层发生膜层分离，使各膜层之间只会存在少量错动而不会发生膜层分离，通过该方式设置的包覆件40可以兼顾各膜层之间的应力释放和加固连接的效果。在一些实施例中，参见图4B，封包部分43也可以直接贴附于被封包膜层的外侧边，即封包部分43与被封包膜层之间不存在间隙。在一些实施例中，封包部分43贴附于被封包膜层的外侧边可以提高被封装膜层的封装强度。
叠覆部分42沿第二方向的长度L 1取决于包覆件40的材料性能及粘接的强度。一般说来，叠覆部分42过长，会造成材料浪费，且因为叠覆部分产生额外厚度，可能影响显示的性能。叠覆部分42过短，则可能造成粘接强度不够，失去叠覆件的意义。为尽量避免叠覆部分42对显示性能的影响，叠覆部分42应尽量与柔性显示面板100的非显示区域重叠，即叠覆部分42应尽量避免延伸至显示区域的下方(或上方)。在一些实施例中，叠覆部分42沿第二方向的长度L 1即对应于第二层组30的边沿中被包覆 件40包覆的宽度。参见图5，在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在1mm～5mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在1mm～4mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在1mm～3mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在1mm～2mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在1.5mm～5mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在1.5mm～4mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在1.5mm～3mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在1.5mm～2mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在2mm～5mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在3mm～5mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在4mm～5mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在2mm～3mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在2mm～4mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 1在3mm～4mm之间。
叠覆部分42的厚度取决于包覆件40的材料性能及粘接的强度。一般说来，叠覆部分42过厚，可能影响显示的性能。叠覆部分42过薄，则可能导致因材料强度不够，失去包覆件40的意义。参见图5，在一些实施例中，包覆件40的叠覆部分42的厚度h 1在0.025mm-0.5mm之间。在一些实施例中，包覆件40的叠覆部分42的厚度h 1在0.025mm-0.4mm之间。在一些实施例中，包覆件40的叠覆部分42的厚度h 1在0.025mm-0.3mm之间。在一些实施例中，包覆件40的叠覆部分42的厚度h 1在0.025mm-0.2mm之间。在一些实施例中，包覆件40的叠覆部分42的厚度h 1在0.025mm-0.1mm之间。在一些实施例中，包覆件40的叠覆部分42的厚度h 1在0.03mm-0.1mm之间。在一些实施例中，包覆件40的叠覆部分42的厚度h 1在0.035mm-0.1mm之间。在一些实施例中，包覆件40的叠覆部分42的厚度h 1在0.04mm-0.1mm之间。在一些实施例中，包覆件40的叠覆部分42的厚度h 1在0.045mm-0.1mm之间。在一些实施例中，包覆件40的叠覆部分42的厚度h 1在0.05mm-0.1mm之间。在一些实施例中，包覆件40的叠覆部分42的厚度h 1可以是0.05mm。在一些实施例中，包覆件40的叠覆部分42的厚度h 1可以是0.1mm。
在一些实施例中，第一胶粘膜层22的材料可以是具有较高透光率的胶材。在一 些实施例中，第一胶粘膜层22的材料可以包括光学透明胶(OCA)。在一些实施例中，第一胶粘膜层22的材料也可以包括辅助胶材粘接的促进剂或催化剂。在一些实施例中，第一胶粘膜层22可以使用OCA作为主胶材，并加入适量的促进剂。在一些实施例中，主胶材和促进剂的比例可以在95:5-99.999:0.001之间。
在一些实施例中，参见图6，柔性显示面板100的包覆件40可以通过流程600制作：
步骤610，在支撑层31上表面铺叠第二胶粘膜层32。
在一些实施例中，支撑层31可以是薄片状的刚性材料。在一些实施例中，支撑层31可以是钢片或其它类似性能的刚性材料。在一些实施例中，刚性材料的厚度可以在0.03mm-1mm之间。在一些实施例中，刚性材料的厚度可以在0.03mm-0.7mm之间。在一些实施例中，刚性材料的厚度可以在0.03mm-0.2mm之间。在一些实施例中，刚性材料的厚度可以在0.03mm-0.1mm之间。在一些实施例中，刚性材料的厚度可以在0.03mm-0.3mm之间。在一些实施例中，刚性材料的厚度可以在0.03mm-0.4mm之间。在一些实施例中，刚性材料的厚度可以在0.03mm-0.5mm之间。在一些实施例中，刚性材料的厚度可以在0.08～0.12mm之间。在一些实施例中，刚性材料的厚度可以在0.28～0.32mm之间。在一些实施例中，刚性材料的厚度可以在0.38～0.42mm之间。在一些实施例中，刚性材料的厚度可以在0.48～0.52mm之间。
在一些实施例中，第二胶粘膜层32可以是薄膜状的胶材。在一些实施例中，第二胶粘膜层32可以是薄膜状的压敏胶。在一些实施例中，胶材的厚度在0.025mm-0.5mm之间。在一些实施例中，胶材的厚度在0.025mm-0.4mm之间。在一些实施例中，胶材的厚度在0.025mm-0.3mm之间。在一些实施例中，胶材的厚度在0.025mm-0.2mm之间。在一些实施例中，胶材的厚度在0.025mm-0.1mm之间。在一些实施例中，胶材的厚度在0.025mm-0.05mm之间。
在一些实施例中，支撑层31和第二胶粘膜层32的粘接面的形状和面积尽可能相同。在一些实施例中，支撑层31和第二胶粘膜层32的形状可以是矩形。
步骤620，在第二胶粘膜层32上表面铺叠显示层10。
在一些实施例中，显示层10和第二胶粘膜层32的粘接面具有尽可能相同的形状和面积。在一些实施例中，第二胶粘膜层32可以略小于显示层10。在一些实施例中，第二胶粘膜层32的各边线与显示层10的各边线之间的距离可以在0.001mm-0.01mm之间。在一些实施例中，显示层10的形状可以是矩形。在一些实施例中，显示层10在沿 其长边所在方向的刚度可以小于沿其短边所在方向的刚度，使得显示层10的至少部分能够沿其长边所在方向弯曲。在一些实施例中，显示层10在沿其长边所在方向的刚度也可以大于沿其短边所在方向的刚度，使得显示层10的至少部分能够沿其短边所在方向弯曲。
步骤630，在显示层10上铺叠第一胶粘膜层22，第一胶粘膜层22相对于显示层10具有延伸部221。
在一些实施例中，第一胶粘膜层22可以是薄膜状的胶材。在一些实施例中，第一胶粘膜层22可以是薄膜状的光学透明胶(OCA)。在一些实施例中，胶材的厚度在0.025mm-0.5mm之间。在一些实施例中，胶材的厚度在0.025mm-0.4mm之间。在一些实施例中，胶材的厚度在0.025mm-0.3mm之间。在一些实施例中，胶材的厚度在0.025mm-0.2mm之间。在一些实施例中，胶材的厚度在0.025mm-0.1mm之间。在一些实施例中，胶材的厚度在0.025mm-0.05mm之间。
在一些实施例中，第一胶粘膜层22与显示层10相比，具有更大的面积。在一些实施例中，显示层10可以沿其长边所在方向弯曲，第一胶粘膜层22在显示层10的短边所在方向具有比显示层10更大的宽度。在一些实施例中，第一胶粘膜层22与显示层10粘接后，在显示层10短边所在方向的两端具有相同尺寸的延伸部221。在一些实施例中，延伸部221也可以只设置于显示层10短边所在方向的其中一端。在一些实施例中，显示层10可以沿其短边所在方向弯曲，第一胶粘膜层22在显示层10的长边所在方向具有比显示层10更大的宽度。在一些实施例中，延伸部221可以位于显示层10长边所在方向的两端，或者其中一端。
在一些实施例中，在显示层10上铺叠第一胶粘膜层22之前，还可以在显示层10上铺叠光学膜层和/或触控层，并将第一胶粘膜层22铺叠在光学膜层或触控层的上表面。
步骤640，在第一胶粘膜层22上铺叠盖板层21。
在一些实施例中，盖板层21和显示层10具有相同的形状和面积。在一些实施例中，盖板层21可以包CPI膜层。
步骤650，将延伸部221向下翻转，并粘接于支撑层31的下表面。
在一些实施例中，延伸部221向下翻转粘接于支撑层31的下表面后，延伸部221形成叠覆部分42和封包部分43。在一些实施例中，操作人员可以进一步对叠覆部分42和封包部分43的外表面进行固化处理，使叠覆部分42和封包部分43的外表面 不具有粘性。
在一些实施例中，第一层组20可以包括盖板层21和第一胶粘膜层22，第二层组30可以包括支撑层31和第二胶粘膜层32。参见图7，柔性显示面板100由上到下分别包括盖板层21、第一胶粘膜层22、显示层10、第二胶粘膜层32以及支撑层31。在一些实施例中，柔性显示面板100还可以包括由第二胶粘膜层32形成的包覆件40。在一些实施例中，第二胶粘膜层32可以包覆显示层10和第一层组20的至少部分形成包覆件40。在一些实施例中，包覆件40可以包括叠覆部分42和封包部分43。在一些实施例中，叠覆部分42位于盖板层21的上表面，封包部分43位于显示层10沿第二方向的外侧。在一些实施例中，包覆件40可以包覆于柔性显示面板100沿第二方向的任意一侧。在一些实施例中，包覆件40也可以包覆于柔性显示面板100沿第二方向的两侧。
在一些实施例中，参见图7，第二胶粘膜层32沿与所述预定轴线130平行的方向具有长度超出对应的显示层10的长度的延伸部321，所述延伸部321部分延伸至第一层组20的上表面，使第二胶粘膜层32部分延伸，该延伸部分构成包覆件40。在一些实施例中，延伸部321中延伸至第一层组20的上表面的部分可以形成包覆件40的叠覆部分42。在一些实施例中，延伸部321中未延伸至第一层组20的上表面的部分形成包覆件40的封包部分43，用于封包第二胶粘膜层32与叠覆部分42之间的膜层。在一些实施例中，封包部分43所封包的膜层可以包括显示层10以及第一层组20中的全部膜层。
叠覆部分42沿第二方向的长度L 2取决于包覆件40的材料性能及粘接的强度。在一些实施例中，叠覆部分42沿第二方向的长度L 2即对应于第一层组20的边沿中被包覆件40包覆的宽度。参见图8，在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 2在0.7mm～3mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 2在0.7mm～2.5mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 2在0.7mm～2mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 2在0.7mm～1.5mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 2在1mm～3mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 2在1mm～2.5mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 2在1mm～2mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 2在1.5mm～3mm之间。在一些实施例中，包覆件40的叠覆部分42沿第二方向的长度L 2在1.5mm～2.5mm之间。在一些实施例中，包覆件40的叠覆部 分42沿第二方向的长度L 2在2mm～2.5mm之间。
参见图8，在一些实施例中，包覆件40的叠覆部分42的厚度h 2在0.025mm-0.5mm之间。在一些实施例中，包覆件40的叠覆部分42的厚度h 2与本申请其他一些实施例中叠覆部分42的厚度h 1的大小相似，叠覆部分42的厚度h 2的具体取值范围可参考本申请图5中的描述，此处不在赘述。
在一些实施例中，第二胶粘膜层32的材料可以包括压敏胶(PSA)、光学透明胶(OCA)、光敏胶以及热敏胶中的任意一种或多种的组合。在一些实施例中，第二胶粘膜层32的材料也可以包括辅助胶材粘接的促进剂或催化剂。
在一些实施例中，参见图9，柔性显示面板100的包覆件40可以通过流程900制作：
步骤910，在支撑层31上表面铺叠第二胶粘膜层32。
在一些实施例中，支撑层31可以是薄片状的刚性材料。在一些实施例中，支撑层31可以是钢片或其它类似性能的刚性材料。刚性材料的相关尺寸参数可以参见本申请图6的描述，此处不在赘述。在一些实施例中，第二胶粘膜层32可以是薄膜状的胶材。在一些实施例中，第二胶粘膜层32可以是薄膜状的胶材。在一些实施例中，第二胶粘膜层32可以是薄膜状的压敏胶。胶材的厚度尺寸参数可以参见本申请图6的相关描述，此处不在赘述。
步骤920，在第二胶粘膜层32上表面铺叠显示层10，第二胶粘膜层32相对于显示层10具有延伸部321。
在一些实施例中，显示层10和支撑层31的形状和面积尽可能相同。在一些实施例中，显示层10的形状可以是矩形。在一些实施例中，显示层10在沿其长边所在方向的刚度可以小于沿其短边所在方向的刚度，使得显示层10的至少部分能够沿其长边所在方向弯曲。在一些实施例中，显示层10在沿其长边所在方向的刚度也可以大于沿其短边所在方向的刚度，使得显示层10的至少部分能够沿其短边所在方向弯曲。
在一些实施例中，第二胶粘膜层32与显示层10和支撑层31相比，具有更大的面积。在一些实施例中，显示层10可以沿其长边所在方向弯曲，第二胶粘膜层32在显示层10的短边所在方向具有比显示层10更大的宽度。在一些实施例中，第二胶粘膜层32与显示层10粘接后，在显示层10短边所在方向的两端具有相同尺寸的延伸部321。在一些实施例中，延伸部321也可以只存在于显示层10短边所在方向的其中一端。在一些实施例中，显示层10可以沿其短边所在方向弯曲，第二胶粘膜层32在显示层10 的长边所在方向具有比显示层10更大的宽度。在一些实施例中，延伸部321可以位于显示层10长边所在方向的两端，或者其中一端。
步骤930，在显示层10上铺叠第一胶粘膜层22。
在一些实施例中，第一胶粘膜层22可以是薄膜状的胶材。在一些实施例中，第一胶粘膜层22可以是薄膜状的光学透明胶(OCA)，光学透明胶的厚度尺寸参数可以参见本申请其他地方的描述，此处不在赘述。
在一些实施例中，第一胶粘膜层22与显示层10的形状和面积尽可能相同。在一些实施例中，第一胶粘膜层22可以略小于显示层10。在一些实施例中，第一胶粘膜层22的各边线与显示层10的各边线之间的距离可以在0.001mm-0.01mm之间。
在一些实施例中，在显示层10上铺叠第一胶粘膜层22之前，还可以在显示层10上铺叠光学膜层和/触控层。
步骤940，在第一胶粘膜层22上铺叠盖板层21。
在一些实施例中，盖板层21和显示层10的形状和面积尽可能相同。在一些实施例中，盖板层21可以包CPI膜层。
步骤950，将延伸部321向上翻转，并粘接于盖板层21的上表面。
在一些实施例中，延伸部321向上翻转粘接于盖板层21的上表面后，延伸部321形成叠覆部分42和封包部分43。在一些实施例中，操作人员可以进一步对叠覆部分42和封包部分43的外表面进行固化处理，使叠覆部分42和封包部分43的外表面不具有粘性。
在一些实施例中，第一层组20可以包括盖板层21和第一胶粘膜层22，第二层组30可以包括支撑层31和第二胶粘膜层32。参见图10，柔性显示面板100由上到下分别包括盖板层21、第一胶粘膜层22、显示层10、第二胶粘膜层32以及支撑层31。在一些实施例中，柔性显示面板100还可以包括由第一胶粘膜层22和第二胶粘膜层32形成的包覆件40。在一些实施例中，第一胶粘膜层22和第二胶粘膜层32可以相互接合，对显示层10的至少部分进行包覆，形成包覆件40。在一些实施例中，包覆件40可以包括封包部分43。在一些实施例中，包覆件40可以包覆于柔性显示面板100沿第二方向的任意一侧。在一些实施例中，包覆件40也可以包覆于柔性显示面板100沿第二方向的两侧。
在一些实施例中，参见图10，第一胶粘膜层22沿第二方向(与所述预定轴线130平行的方向)具有长度超出对应的显示层10的长度的第一延伸部222，第二胶粘膜 层32沿与所述预定轴线130平行的方向具有长度超出对应的显示层10的长度的第二延伸部322，第一延伸部222和第二延伸部322相互接合，使第一胶粘膜层22和第二胶粘膜层32共同形成包覆件40。在一些实施例中，第一延伸部222和第二延伸部322的接合部分构成包覆件40的封包部分43，用于封包第一胶粘膜层22和第二胶粘膜层32之间的膜层。在一些实施例中，封包部分43所封包的膜层可以包括显示层10以及第一层组20中的全部膜层。
在一些实施例中，第一胶粘膜层22和第二胶粘膜层32的材料可以相同。在一些实施例中，第一胶粘膜层22和第二胶粘膜层32可以包括光学透明胶。在一些实施例中，第一胶粘膜层22和第二胶粘膜层32可以是一个完整胶粘膜层(如，OCA膜层)上的两个不同的部分。在一些实施例中，所述完整胶粘膜层可以通过翻折形成两个不同的膜层平面。在一些实施例中，两个不同的膜层平面可以分别形成第一胶粘膜层22和第二胶粘膜层32，铺叠在柔性显示面板100的其他膜层之间。在一些实施例中，完整胶粘膜层通过翻折后位于显示层10外侧的接合部分可以形成包覆件40的封包部分43。
在一些实施例中，参见图11，柔性显示面板100的包覆件40可以通过流程1100制作：
步骤1110，在支撑层31上表面铺叠一层胶粘膜层，所述胶粘膜层在至少一个方向延伸出支撑层31。
在一些实施例中，支撑层31可以是薄片状的刚性材料。在一些实施例中，支撑层31可以是钢片或其它类似性能的刚性材料。刚性材料的相关尺寸参数可以参见本申请图6的描述，此处不在赘述。在一些实施例中，在支撑层31上表面铺叠的胶粘膜层可以是两面均具有粘性的光学透明胶(OCA)膜层。在一些实施例中，胶粘膜层在支撑层31的短边方向可以延伸出具有大于或等于支撑层31的短边宽度的部分，在支撑层31的长边方向具有与支撑层31相同长度的边。在一些实施例中，胶粘膜层在支撑层31的长边方向可以延伸出具有大于或等于支撑层31的长边宽度的部分，在支撑层31的短边方向具有与支撑层31相同长度的边。
步骤1120，在胶粘膜层上表面铺叠显示层10。
在一些实施例中，显示层10和支撑层31的形状和面积尽可能相同，胶粘膜层相对于显示层10具有延伸出其短边或长边的部分。
在一些实施例中，胶粘膜层位于显示层10和支撑层31之间的部分可以形成柔性显示面板100的第二胶粘膜层32。
步骤1130，将胶粘膜层延伸出支撑层31的部分翻折粘接于显示层10的上表面。
在一些实施例中，胶粘膜层粘接于显示层10的上表面的部分可以形成柔性显示面板100的第一胶粘膜层22。在一些实施例中，胶粘膜层延伸出支撑层31的部分翻折粘接于显示层10的上表面后，即形成包覆件40。包覆件40可以通过形成相互接合的第一胶粘膜层22和第二胶粘膜层32将显示层10包覆于其间。第一胶粘膜层22和第二胶粘膜层32的接合部分作为包覆件40的封包部分43位于显示层10的外侧。
在一些实施例中，在显示层10上铺叠第一胶粘膜层22之前，还可以在显示层10上铺叠光学膜层和/触控层。
步骤1140，在显示层10上表面的胶粘膜层上铺叠盖板层21。
在一些实施例中，盖板层21和显示层10具有相同的形状和面积。在一些实施例中，盖板层21可以包括CPI膜层。
在一些实施例中，第二层组30可以包括缓冲膜层。在一些实施例中，缓冲膜层可以设置于第二胶粘膜层32和显示层10之间。在一些实施例中，缓冲膜层可以包覆显示层10和第一层组20的至少部分形成包覆件40。
在一些实施例中，缓冲膜层沿第二方向(与所述预定轴线130平行的方向)具有长度超出对应的显示层10的长度的延伸部，所述延伸部部分延伸至第一层组20的上表面，使缓冲膜层形成包覆件40。
在一些实施例中，缓冲膜层延伸至第一层组20上表面的部分构成包覆件40的叠覆部分。在一些实施例中，叠覆部分沿第二方向的长度在0.7mm～3mm之间。在一些实施例中，叠覆部分的厚度在0.025mm-0.5mm之间。在一些实施例中，通过缓冲膜层形成的包覆件40具有与第二胶粘膜层32形成的包覆件40相类似的结构形状及尺寸参数，具体可参见本申请图8的相关描述，此处不在赘述。在一些实施例中，缓冲膜层可以是软性材料。在一些实施例中，缓冲膜层的材料可以包括当不限于泡棉、凝胶材料或硅胶材料等。
在一些实施例中，通过减小显示层10在弯曲时受到的弯曲应力，可以防止显示层10发生膜层错位的风险。在一些实施例中，为了减小显示层10在弯曲时受到的弯曲应力，第二层组20的下表面可以包括沿第一方向分布设置的多个凸台311。当柔性显示面板100在转轴200上弯曲移动时，凸台311直接与转轴200接触，转轴200对柔性显示面板100的作用力直接作用于凸台311上。由于相邻凸台311之间存在一定的间 隙，柔性显示面板100在弯曲时相邻凸台311之间不会互相挤压，能够有效减小弯曲时产生的弯曲应力。并且，柔性显示面板100在弯曲时所产生的应变能够通过凸台311之间的间隙得到释放，避免了应变在柔性显示面板100的各膜层中累积后进一步传递至显示层10的各膜层中，因此，降低了柔性显示面板100以及显示层10的各膜层在弯曲过程中发生膜层错位和劈裂的风险。
在一些实施例中，参见图12，支撑层31可以包括分布设置的多个凸台311。在一些实施例中，多个凸台311可以在支撑层31的刚性材料上加工形成。在一些实施例中，支撑层31可以包括钢片，凸台311可以在钢片上加工形成。在一些实施例中，支撑层31可以是超薄玻璃，凸台311可以在超薄玻璃上加工形成。在一些实施例中，凸台311加工成型后，可以在凸台311表面包覆胶材，使凸台311在受到转轴的挤压时能够提供一定的缓冲作用。在一些实施例中，包覆于凸台311上的胶材可以包括但不限于聚氨脂橡胶(polyurethane，PU)、硅胶或热塑性聚氨酯弹性体橡胶(Thermoplastic polyurethanes，TPU)等。在一些实施例中，凸台311也可以不在支撑层31的刚性材料上加工形成，而是直接通过在刚性材料上包覆胶材的方式，使胶材形成凸台311。
在一些实施例中，凸台311可以设置于支撑层31与弯曲部120相对应的区域的下表面。在一些实施例中，凸台311可以沿第一方向按一定分布规则间隔地设置在支撑层31的背面。在一些实施例中，凸台311沿第一方向的分布规则可以是等间隔分布。在一些实施例中，凸台311可以沿第二方向按一定分布规则间隔地设置在支撑层31的下表面。在一些实施例中，凸台311的沿第二方向的分布规则可以是等间隔分布。在一些实施例中，凸台311沿第二方向的分布规则也可以是不等间隔分布。在一些实施例中，凸台311可以沿第二方向分布在支撑层31沿该方向的两端的区域。在一些实施例中，支撑层31沿第二方向的两端分布有凸台311的区域占第二方向总宽度的比值可以在10％-60％之间。在一些实施例中，凸台311也可以沿第二方向贯通设置于支撑层31的下表面。
凸台311的分布间隔取决于凸台的形状。一般说来，凸台311分布间隔过大，可能影响支撑层31的支撑效果。凸台311分部间隔过小，在柔性显示面板100弯曲过程中，相邻凸台之间可能发生相互挤压产生挤压力，失去凸台311的意义。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.1mm-2mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.1mm-1.8mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.1mm-1.5mm之间。在一些实施例中，凸台311的 沿第一方向的分布间隔可以在0.1mm-1.2mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.1mm-1mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.1mm-0.8mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.2mm-0.8mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.3mm-0.8mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.4mm-0.8mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.4mm-1mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.4mm-1.2mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.4mm-1.5mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.5mm-1.5mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.5mm-1.2mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.5mm-1mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.5mm-0.8mm。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.8mm-1.2mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.8mm-1.5mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在0.8mm-2mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在1mm-2mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在1mm-1.2mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在1mm-1.5mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在1mm-1.8mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在1.2mm-1.5mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在1.2mm-1.8mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在1.2mm-2mm之间。在一些实施例中，凸台311的沿第一方向的分布间隔可以在1.5mm-2mm之间。
在一些实施例中，凸台311的形状可以包括半球形、啮齿形以及长条形。
在一些实施例中，参见图13，凸台311的形状可以是半球形。在一些实施例中，半球形凸台的半径可以在0.03mm-1mm之间。在一些实施例中，半球形的半径可以在0.03mm-1mm之间。在一些实施例中，半球形的半径可以在0.03mm-0.9mm之间。在一些实施例中，半球形的半径可以在0.03mm-0.8mm之间。在一些实施例中，半球形的半径可以在0.03mm-0.7mm之间。在一些实施例中，半球形的半径可以在0.03mm-0.6mm之间。在一些实施例中，半球形的半径可以在0.03mm-0.5mm之间。在一些实施例中，半球形的半径可以在0.03mm-0.4mm之间。在一些实施例中，半球形的半径可以在 0.03mm-0.3mm之间。在一些实施例中，半球形的半径可以在0.03mm-0.2mm之间。在一些实施例中，半球形的半径可以在0.03mm-0.1mm之间。在一些实施例中，半球形的半径可以在0.1mm-1mm之间。在一些实施例中，半球形的半径可以在0.1mm-0.7mm之间。在一些实施例中，半球形的半径可以在0.1mm-0.5mm之间。在一些实施例中，半球形的半径可以在0.1mm-0.4mm之间。在一些实施例中，半球形的半径可以在0.1mm-0.3mm之间。在一些实施例中，半球形的半径可以在0.1mm-0.2mm之间。在一些实施例中，半球形的半径可以在0.3mm-0.5mm之间。在一些实施例中，半球形的半径可以在0.3mm-0.4mm之间。在一些实施例中，半球形的半径可以在0.4mm-0.5mm之间。
在一些实施例中，半球形凸台沿第一方向的分布间隔可以在0.1mm-1mm之间。在一些实施例中，半球形凸台沿第一方向的分布间隔可以在0.3mm-1mm之间。在一些实施例中，半球形凸台沿第一方向的分布间隔可以在0.5mm-1mm之间。在一些实施例中，半球形凸台沿第一方向的分布间隔可以在0.5mm-0.9mm之间。在一些实施例中，半球形凸台沿第一方向的分布间隔可以在0.5mm-0.8mm之间。在一些实施例中，半球形凸台沿第一方向的分布间隔可以在0.5mm-0.7mm之间。在一些实施例中，半球形凸台沿第一方向的分布间隔可以在0.6mm-0.8mm之间。在一些实施例中，半球形凸台沿第一方向的分布间隔可以在0.6mm-1mm之间。
在一些实施例中，半球形凸台沿第二方向的分布间隔可以在0.5mm-4mm之间。在一些实施例中，半球形凸台沿第二方向的分布间隔可以在1mm-4mm之间。在一些实施例中，半球形凸台沿第二方向的分布间隔可以在1.5mm-4mm之间。在一些实施例中，半球形凸台沿第二方向的分布间隔可以在2mm-4mm之间。在一些实施例中，半球形凸台沿第二方向的分布间隔可以在2.5mm-4mm之间。在一些实施例中，半球形凸台沿第二方向的分布间隔可以在3mm-4mm之间。在一些实施例中，半球形凸台沿第二方向的分布间隔可以在3.5mm-4mm之间。
在一些实施例中，参见图14，凸台311的形状可以是啮齿形。在一些实施例中，参见图x，啮齿形凸台在垂直于预定轴线130的平面上具有梯形截面。在一些实施例中，梯形的长边M为接近显示层10的一边，梯形的短边N为远离显示层10的一边。在一些实施例中，梯形的长边M的值可以在1mm-2mm之间。在一些实施例中，梯形的长边M的值可以在1mm-1.5mm之间。在一些实施例中，梯形的长边M的值可以在1.5mm-2mm之间。在一些实施例中，梯形的短边N的值可以在0.5mm-1mm之间。在一些实施例中，梯形的短边N的值可以在0.5mm-0.8mm之间。在一些实施例中，梯形的短边 N的值可以在0.8mm-1mm之间。在一些实施例中，梯形的短边N的值可以在0.6mm-0.8mm之间。在一些实施例中，梯形的高L的值可以在0.03mm-1mm之间。在一些实施例中，梯形的高L的值可以在0.03mm-1mm之间。在一些实施例中，梯形的高L的值可以在0.03mm-0.9mm之间。在一些实施例中，梯形的高L的值可以在0.03mm-0.8mm之间。在一些实施例中，梯形的高L的值可以在0.03mm-0.7mm之间。在一些实施例中，梯形的高L的值可以在0.03mm-0.6mm之间。在一些实施例中，梯形的高L的值可以在0.03mm-0.5mm之间。在一些实施例中，梯形的高L的值可以在0.03mm-0.4mm之间。在一些实施例中，梯形的高L的值可以在0.03mm-0.3mm之间。在一些实施例中，梯形的高L的值可以在0.03mm-0.2mm之间。在一些实施例中，梯形的高L的值可以在0.03mm-0.1mm之间。在一些实施例中，梯形的高L的值可以在0.1mm-1mm之间。在一些实施例中，梯形的高L的值可以在0.1mm-0.7mm之间。在一些实施例中，梯形的高L的值可以在0.1mm-0.5mm之间。在一些实施例中，梯形的高L的值可以在0.1mm-0.4mm之间。在一些实施例中，梯形的高L的值可以在0.1mm-0.3mm之间。在一些实施例中，梯形的高L的值可以在0.1mm-0.2mm之间。在一些实施例中，梯形的高L的值可以在0.3mm-0.5mm之间。在一些实施例中，梯形的高L的值可以在0.3mm-0.4mm之间。在一些实施例中，梯形的高L的值可以在0.4mm-0.5mm之间。
在一些实施例中，啮齿形凸台沿第一方向的分布间隔可以在0.5mm-1mm之间。在一些实施例中，啮齿形凸台沿第一方向的分布间隔可以在0.5mm-0.9mm之间。在一些实施例中，啮齿形凸台沿第一方向的分布间隔可以在0.5mm-0.8mm之间。在一些实施例中，啮齿形凸台沿第一方向的分布间隔可以在0.5mm-0.7mm之间。在一些实施例中，啮齿形凸台沿第一方向的分布间隔可以在0.5mm-0.6mm之间。在一些实施例中，啮齿形凸台沿第一方向的分布间隔可以在0.6mm-1mm之间。在一些实施例中，啮齿形凸台沿第一方向的分布间隔可以在0.7mm-1mm之间。在一些实施例中，啮齿形凸台沿第一方向的分布间隔可以在0.8mm-1mm之间。在一些实施例中，啮齿形凸台沿第一方向的分布间隔可以在0.9mm-1mm之间。
在一些实施例中，啮齿形凸台沿第二方向的分布间隔可以与半球形凸台沿第二方向的分部间隔相类似的设置，具体的间隔尺寸可以参见本申请其他地方的相关描述，此处不在赘述。
在一些实施例中，凸台311的形状为长条状。在一些实施例中，长条状凸台可以沿第二方向贯通设置于支撑层31的下表面。在一些实施例中，支撑层31的下表面沿 第二方向也可以分布多个长条状凸台。在一些实施例中，长条形凸台在垂直于预定轴线130的平面上具有矩形截面。在一些实施例中，矩形沿第一方向的边长的值在0.5mm-3mm之间。在一些实施例中，矩形沿第一方向的边长的值在0.5mm-2.5mm之间。在一些实施例中，矩形沿第一方向的边长的值在0.5mm-2mm之间。在一些实施例中，矩形沿第一方向的边长的值在0.5mm-1.5mm之间。在一些实施例中，矩形沿第一方向的边长的值在0.5mm-1mm之间。在一些实施例中，矩形沿第一方向的边长的值在1mm-3mm之间。在一些实施例中，矩形沿第一方向的边长的值在1mm-2.5mm之间。在一些实施例中，矩形沿第一方向的边长的值在1mm-2mm之间。在一些实施例中，矩形沿第一方向的边长的值在1mm-1.5mm之间。在一些实施例中，矩形沿第一方向的边长的值在1.5mm-3mm之间。在一些实施例中，矩形沿第一方向的边长的值在2mm-3mm之间。在一些实施例中，矩形沿第一方向的边长的值在2.5mm-3mm之间。在一些实施例中，矩形的高的值可以在0.03mm-1mm之间。在一些实施例中，矩形的高的值可以与啮齿形凸台中梯形的高L相类似设置，具体可以参见本申请其他地方的描述，此处不在赘述。
在一些实施例中，长条状凸台沿第一方向的分布间隔可以在1mm-2mm之间。在一些实施例中，长条状凸台沿第一方向的分布间隔可以在1.2mm-2mm之间。在一些实施例中，长条状凸台沿第一方向的分布间隔可以在1.4mm-2mm之间。在一些实施例中，长条状凸台沿第一方向的分布间隔可以在1.6mm-2mm之间。在一些实施例中，长条状凸台沿第一方向的分布间隔可以在1.8mm-2mm之间。在一些实施例中，长条状凸台沿第一方向的分布间隔可以在1mm-1.5mm之间。在一些实施例中，长条状凸台沿第一方向的分布间隔可以在1.5mm-2mm之间。在一些实施例中，长条状凸台沿第一方向的分布间隔可以在1mm-1.8mm之间。在一些实施例中，长条状凸台沿第一方向的分布间隔可以在1mm-1.6mm之间。在一些实施例中，长条状凸台沿第一方向的分布间隔可以在1mm-1.4mm之间。在一些实施例中，长条状凸台沿第一方向的分布间隔可以在1mm-1.2mm之间。
在一些实施例中，多个凸台311可以通过额外的外置材料制成，并粘接于支撑层31的下表面。在一些实施例中，多个凸台311可以设置于外置膜层上，外置膜层上与凸台311所在位置相背的一面与支撑层31的下表面粘接，使凸台311固定在支撑层31的下表面。在一些实施例中，凸台311的材料可以包括但不限于钢片、合金、玻璃及其任意组合。在一些实施例中，粘接外置材料和支撑层31的胶材可以包括但不限于光 学透明胶、压敏胶或热敏胶等。在一些实施例中，通过外置材料制成并粘接于支撑层31的下表面的凸台311可以与直接在支撑层31上加工形成的凸台311具有相类似的形状及大小，并可以具有相类似的分布规则，关于凸台311的形状、大小及分布规则的具体的参数可以参见本申请其他地方的描述，此处不在赘述。
在一些实施例中，通过外置材料制成的凸台的厚度可以在0.03mm-1mm之间。在一些实施例中，通过外置材料制成的凸台的厚度可以在0.03mm-0.5mm之间。在一些实施例中，通过外置材料制成的凸台的厚度可以在0.03mm-0.4mm之间。在一些实施例中，通过外置材料制成的凸台的厚度可以在0.03mm-0.3mm之间。在一些实施例中，通过外置材料制成的凸台的厚度可以在0.03mm-0.1mm之间。
在一些实施例中，当第一胶粘膜层22包覆支撑层31的下表面形成包覆件40时，凸台311也可以粘接于包覆件40的叠覆部分42的下表面。在一些实施例中，凸台311与叠覆部分42的总厚度在0.03mm-1mm之间。
在一些实施例中，本申请实施例的柔性显示面板100可以应用于显示设备1000。为了进一步防止柔性显示面板100中在显示设备1000中使用时，各膜层发生劈裂或膜层错位的问题，显示设备1000可以包括限位槽300，用于限制柔性显示面板100中各膜层沿垂直于显示面的方向的运动，防止柔性显示面板100中各膜层沿垂直于显示面的方向相互散开造成劈裂。
在一些实施例中，参见图15，显示设备1000可以包括柔性显示面板100、转轴200以及限位槽300。在一些实施例中，柔性显示面板100可以包括始终呈现在显示设备1000的显示屏上的非弯曲部110和可以通过转轴200弯曲收纳于显示设备1000内部空间的弯曲部120。在一些实施例中，柔性显示面板100的弯曲部120可以沿第一方向经过转轴200从收纳区域(例如，非弯曲部110的背面)的出口端400拉出，作为扩展显示区域可选择的呈现在显示设备1000的显示屏上。在一些实施例中，显示设备1000可以包括相对设置的两个限位槽。在一些实施例中，限位槽300可以设置于柔性显示面板100沿第二方向的两端，用于限制柔性显示面板100沿垂直于显示面的方向的运动。在一些实施例中，限位槽300沿第一方向设置于靠近出口端400的位置，使得弯曲部120的膜层沿转轴200拉出后能够进入限位槽300进行限位。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在1mm-5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在1mm-4.5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在1mm-4mm之间。在一些实 施例中，限位槽300与出口端400沿第一方向的间隔距离可以在1mm-3.5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在1mm-3mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在1mm-2.5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在1mm-2mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在1mm-1.5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在1.5mm-5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在2mm-5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在2.5mm-5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在3mm-5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在3.5mm-5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在4mm-5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在4.5mm-5mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在2mm-3mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在3mm-4mm之间。在一些实施例中，限位槽300与出口端400沿第一方向的间隔距离可以在2mm-4mm之间。
在一些实施例中，显示设备1000可以包括相对分布的第一转轴和第二转轴(图中未示出)，以及分别设置于靠近第一转轴出口端和第二转轴出口端的两组限位槽。在一些实施例中，柔性显示面板100可以包括非弯曲部以及沿第一方向分布于非弯曲部两侧的第一弯曲部和第二弯曲部。在一些实施例中，第一弯曲部和第二弯曲部可以分别绕第一转轴和第二转轴弯曲收纳于显示设备1000内部空间，并在需要进行扩展显示时经第一转轴和第二转轴从收纳区域拉出。在一些实施例中，设置于靠近第一转轴出口端和第二转轴出口端的两组限位槽可以分别对第一弯曲部和第二弯曲部进行限位，防止第一弯曲部和第二弯曲部在拉出过程中发生膜层散开的现象。
在一些实施例中，参见图16，弯曲部120包括被限位槽300限制沿垂直于显示面方向移动的限位边122，限位边122可以在限位槽300的内部间隙301中沿第一方向移动。在一些实施例中，限位边122为弯曲部120沿第二方向的非显示区域的至少一部分。在一些实施例中，限位槽300的内部间隙301的高度(即，内部间隙301上表面与下表面之间的间距)与限位边122的厚度相同或接近相同(差值在±0.05mm以内)。在一些实施例中，为了提高限位槽300对限位边122的限位效果，限位边122的厚度可 以等于或略大于(差值在0.05mm以内)内部间隙301的高度。在一些实施例中，当弯曲部120的各膜层有沿垂直于显示面相互散开的趋势时，由于限位槽300限制限位边122在该方向的运动，限位槽300将对弯曲部120产生与其散开趋势相反的作用力，抵消各膜层的散开趋势。在一些实施例中，为了减小限位边122在限位槽300中移动的阻力(如摩擦力)，限位边122的厚度可以等于或略小于(差值在0.05mm以内)内部间隙301的高度。
在一些实施例中，限位边122的厚度小于或等于内部间隙301的高度时，弯曲部120不会受到限位槽300的挤压力，弯曲部120在滑动时不会受到限位槽300的摩擦力的作用。在一些实施例中，限位边122的厚度大于内部间隙301的高度时，弯曲部120受到限位槽300的挤压力，弯曲部120在滑动时受限位槽300的摩擦力的作用。
在一些实施例中，参见图17，为了提高限位槽300对限位边122的限位效果的同时，尽可能的减小限位边122在限位槽300中移动时受到的阻力，弯曲部120可以包括设置于限位边122上的若干凸起121。在一些实施例中，凸起121的顶部可以与限位槽300的内壁接触，提高限位槽300对限位边122的限位效果。在一些实施例中，限位边122在限位槽300的内部间隙301中移动时，凸起121相比限位边122与限位槽300的内壁接触时，具有更小的接触面积，可以有效减小弯曲部120与限位槽300之间的摩擦力。在一些实施例中，凸起121可以设置于限位边122上表面或下表面的其中一面。在一些实施例中，凸起121可以同时设置于限位边122的上表面和下表面。
在一些实施例中，凸起121的形状可以包括但不限于半球形、啮齿形、长城形或波浪形等。在一些实施例中，凸起121可以设置于限位边122的上下两个表面。
在一些实施例中，多个凸起121可以在限位边122上沿第一方向间隔分布。在一些实施例中，凸起121在限位边122上沿第一方向的分部间隔可以在0.5mm-3mm之间。在一些实施例中，凸起121在限位边122上沿第一方向的分部间隔可以在0.8mm-2mm之间。在一些实施例中，凸起121在限位边122上沿第一方向的分部间隔可以在1mm-2mm之间。在一些实施例中，多个凸起121可以在限位边122上沿第二方向间隔分布。在一些实施例中，凸起121在限位边122上沿第二方向的分部间隔可以在1mm-4mm之间。在一些实施例中，凸起121在限位边122上沿第二方向的分部间隔可以在1mm-3mm之间。在一些实施例中，凸起121在限位边122上沿第二方向的分部间隔可以在2mm-3mm之间。在一些实施例中，限位边122上沿第二方向也可以只设置一个凸起121。
在一些实施例中，凸起121的材料可以是硬性材料。在一些实施例中，凸起121的材料可以包括但不限于钢材、合金以及玻璃等。
本申请所披露的一个或多个实施例可能带来的有益效果包括但不限于：(1)本申请一个或多个实施例提供的包覆件可以对显示层以及柔性显示面板进行包覆加固，有效提高显示层以及柔性显示面板的各膜层之间的结合力；(2)本申请一个或多个实施例提供的包覆件由柔性显示面板的内部膜层形成，能够更直接的包覆于显示层上，提高对显示层内部膜层的加固效果；(3)本申请一个或多个实施例提供的支撑层包括分布设置的多个凸台，可以有效减小柔性显示面板在弯曲过程中产生的弯曲应力，能有效防止柔性显示面板各膜层间因弯曲应力过大造成膜层错位；(4)本申请一个或多个实施例提供的限位槽能够有效限制柔性显示面板沿其显示面方向的运动，能有效防止柔性显示面板的各膜层劈裂散开。
上文已对基本概念做了描述，显然，对于本领域技术人员来说，上述详细披露仅仅作为示例，而并不构成对本申请的限定。虽然此处并没有明确说明，本领域技术人员可能会对本申请进行各种修改、改进和修正。该类修改、改进和修正在本申请中被建议，所以该类修改、改进、修正仍属于本申请示范实施例的精神和范围。
同时，本申请使用了特定词语来描述本申请的实施例。如“一个实施例”、“一实施例”、和/或“一些实施例”意指与本申请至少一个实施例相关的某一特征、结构或特点。因此，应强调并注意的是，本说明书中在不同位置两次或多次提及的“一实施例”或“一个实施例”或“一个替代性实施例”并不一定是指同一实施例。此外，本申请的一个或多个实施例中的某些特征、结构或特点可以进行适当的组合。
同理，应当注意的是，为了简化本申请披露的表述，从而帮助对一个或多个发明实施例的理解，前文对本申请实施例的描述中，有时会将多种特征归并至一个实施例、附图或对其的描述中。但是，这种披露方法并不意味着本申请对象所需要的特征比权利要求中提及的特征多。实际上，实施例的特征要少于上述披露的单个实施例的全部特征。
一些实施例中使用了描述成分、属性数量的数字，应当理解的是，此类用于实施例描述的数字，在一些示例中使用了修饰词“大约”、“近似”或“大体上”来修饰。除非另外说明，“大约”、“近似”或“大体上”表明所述数字允许有±20％的变化。相应地，在一些实施例中，说明书和权利要求中使用的数值参数均为近似值，该近似值根据个别实施例所需特点可以发生改变。在一些实施例中，数值参数应考虑规定的有效数位并采用一般位数保留的方法。尽管本申请一些实施例中用于确认其范围广度的数值 域和参数为近似值，在具体实施例中，此类数值的设定在可行范围内尽可能精确。
针对本申请引用的每个专利、专利申请、专利申请公开物和其他材料，如文章、书籍、说明书、出版物、文档等，特此将其全部内容并入本申请作为参考。与本申请内容不一致或产生冲突的申请历史文件除外，对本申请权利要求最广范围有限制的文件(当前或之后附加于本申请中的)也除外。需要说明的是，如果本申请附属材料中的描述、定义、和/或术语的使用与本申请所述内容有不一致或冲突的地方，以本申请的描述、定义和/或术语的使用为准。
最后，应当理解的是，本申请中所述实施例仅用以说明本申请实施例的原则。其他的变形也可能属于本申请的范围。因此，作为示例而非限制，本申请实施例的替代配置可视为与本申请的教导一致。相应地，本申请的实施例不仅限于本申请明确介绍和描述的实施例。

Claims (35)

  1. 一种柔性显示面板，其特征在于，包括：
    显示层，位于所述显示层上面的第一层组，以及位于所述显示层下面的第二层组；所述柔性显示设备的至少部分可以围绕一个预定轴线弯曲，其弯曲的角度大于120°；
    所述第一层组包括至少一个膜层；
    所述第二层组包括至少一个支撑层，所述支撑层包含刚性材料。
  2. 根据权利要求1所述的柔性显示面板，其特征在于，所述柔性显示面板还包括：
    包覆件，所述包覆件包覆如下至少一个：所述显示层的边沿、所述第一层组的边沿和所述第二层组的边沿。
  3. 根据权利要求2所述的柔性显示面板，其特征在于，所述第一层组包括盖板层和第一胶粘膜层。
  4. 根据权利要求3所述的柔性显示面板，其特征在于，所述第一胶粘膜层包覆所述显示层和所述第二层组的至少部分形成所述包覆件。
  5. 根据权利要求4所述的柔性显示面板，其特征在于，
    所述第一胶粘膜层沿与所述预定轴线平行的方向具有长度超出对应的所述显示层的长度的延伸部，所述延伸部部分延伸至所述第二层组的下表面形成所述包覆件。
  6. 根据权利要求5所述的柔性显示面板，其特征在于，所述第一胶粘膜层延伸至所述第二层组下表面的部分沿所述预订轴线平行的方向的长度在1mm～5mm之间。
  7. 根据权利要求5所述的柔性显示面板，其特征在于，所述第一胶粘膜层延伸至所述第二层组下表面的部分的厚度在0.025mm-0.5mm之间。
  8. 根据权利要求3所述的柔性显示面板，其特征在于，所述第一胶粘膜层的材料包括光学透明胶。
  9. 根据权利要求2所述的柔性显示面板，其特征在于，所述第二层组包括支撑层和第二胶粘膜层。
  10. 根据权利要求9所述的柔性显示面板，其特征在于，所述第二胶粘膜层包覆所述显示层和所述第一层组的至少部分形成所述包覆件。
  11. 根据权利要求10所述的柔性显示面板，其特征在于，
    所述第二胶粘膜层沿与所述预定轴线平行的方向具有长度超出对应的所述显示层的长度的延伸部，所述延伸部部分延伸至所述第一层组的上表面形成所述包覆件。
  12. 根据权利要求11所述的柔性显示面板，其特征在于，所述第二胶粘膜层延伸至所述第一层组上表面的部分沿所述预订轴线平行的方向的长度在0.7mm～3mm之间。
  13. 根据权利要求11所述的柔性显示面板，其特征在于，所述第二胶粘膜层延伸至所述第一层组上表面的部分的厚度在0.025mm-0.5mm之间。
  14. 根据权利要求9任一项所述的柔性显示面板，其特征在于，所述第二胶粘膜层的材料包括压敏胶或者光学透明胶。
  15. 根据权利要求2所述的柔性显示面板，其特征在于，所述第一层组包括盖板层和第一胶粘膜层，所述第二层组包括支撑层和第二胶粘膜层，所述第一胶粘膜层和所述第二胶粘膜层相互接合形成所述包覆件。
  16. 根据权利要求15所述的柔性显示面板，其特征在于，
    所述第一胶粘膜层沿与所述预定轴线平行的方向具有长度超出对应的所述显示层的长度的第一延伸部；
    所述第二胶粘膜层沿与所述预定轴线平行的方向具有长度超出对应的所述显示层的长度的第二延伸部；
    所述第一延伸部与所述第二延伸部相互接合形成所述包覆件。
  17. 根据权利要求16所述的柔性显示面板，其特征在于，所述第一胶粘膜层和所述第二胶粘膜层的材料相同。
  18. 根据权利要求2所述的柔性显示面板，其特征在于，所述第二层组包括缓冲膜层。
  19. 根据权利要求18所述的柔性显示面板，其特征在于，所述缓冲膜层包覆所述显示层和所述第一层组的至少部分形成所述包覆件。
  20. 根据权利要求19所述的柔性显示面板，其特征在于，
    所述缓冲膜层沿与所述预定轴线平行的方向具有长度超出对应的所述显示层的长度的延伸部，所述延伸部部分延伸至所述第一层组的上表面形成所述包覆件。
  21. 根据权利要求20所述的柔性显示面板，其特征在于，所述缓冲膜层延伸至所述第一层组上表面的部分沿与所述预订轴线平行的方向的长度在0.7mm～3mm之间。
  22. 根据权利要求20所述的柔性显示面板，其特征在于，所述缓冲膜层延伸至所述第一层组上表面的部分的厚度在0.025mm-0.5mm之间。
  23. 根据权利要求18所述的柔性显示面板，其特征在于，所述缓冲膜层的材料包括泡棉、凝胶或硅胶。
  24. 根据权利要求2所述的柔性显示面板，其特征在于，所述包覆件的封包部分外表面无粘性。
  25. 根据权利要求1所述的柔性显示面板，其特征在于，所述第二层组的下表面的至少部分包括分布设置的多个凸台。
  26. 根据权利要求25所述的柔性显示面板，其特征在于，所述凸台沿垂直于所述预定轴线的方向的分布间隔为0.1mm-2mm。
  27. 根据权利要求25所述的柔性显示面板，其特征在于，所述凸台的形状包括半球形、啮齿形以及长条形。
  28. 根据权利要求25所述的柔性显示面板，其特征在于，所述凸台在所述支撑层上加工形成。
  29. 根据权利要求25所述的柔性显示面板，其特征在于，所述凸台粘接在所述支撑层的下表面。
  30. 根据权利要求25所述的柔性显示面板，其特征在于，所述凸台的材料包括钢片、合金或玻璃。
  31. 一种显示设备，其特征在于，包括一个柔性显示面板，所述柔性显示面板包括：
    显示层，位于所述显示层上面的第一层组，以及位于所述显示层下面的第二层组；所述柔性显示面板的至少部分可以围绕一个预定轴线弯曲，其弯曲的角度大于120°；
    所述第一层组包括至少一个膜层；
    所述第二层组包括至少一个支撑层，所述支撑层包含刚性材料。
  32. 根据权利要求31所述的显示设备，其特征在于，所述显示设备还包括：
    转轴，所述柔性显示面板的至少一部分能够绕所述转轴弯曲；
    至少一组限位槽，设置于所述柔性显示面板沿与所述预定轴线平行的方向的两端；
    所述限位槽限制所述柔性显示面板沿垂直于显示面的方向的运动。
  33. 根据权利要求31所述的显示设备，其特征在于，所述柔性显示面板沿与所述预定轴线平行的方向的非显示区域的至少部分在所述限位槽中沿第一方向滑动。
  34. 根据权利要求33所述的显示设备，其特征在于，所述柔性显示面板位于所述限位槽内部的区域的上表面和/或下表面分布设置有多个凸起，所述凸起能够减小所述柔性显示面板与所述限位槽的接触面积。
  35. 根据权利要求34所述的显示设备，其特征在于，所述凸起的形状包括半球形、啮齿形或者长城形。
PCT/CN2020/140435 2020-12-28 2020-12-28 一种柔性显示面板以及显示设备 WO2022141003A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080080502.3A CN115066717B (zh) 2020-12-28 2020-12-28 柔性显示面板以及显示设备
PCT/CN2020/140435 WO2022141003A1 (zh) 2020-12-28 2020-12-28 一种柔性显示面板以及显示设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/140435 WO2022141003A1 (zh) 2020-12-28 2020-12-28 一种柔性显示面板以及显示设备

Publications (1)

Publication Number Publication Date
WO2022141003A1 true WO2022141003A1 (zh) 2022-07-07

Family

ID=82259868

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/140435 WO2022141003A1 (zh) 2020-12-28 2020-12-28 一种柔性显示面板以及显示设备

Country Status (2)

Country Link
CN (1) CN115066717B (zh)
WO (1) WO2022141003A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115240553A (zh) * 2022-07-28 2022-10-25 昆山国显光电有限公司 电子设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206610569U (zh) * 2017-04-01 2017-11-03 武汉天马微电子有限公司 一种柔性显示面板及柔性显示装置
CN107611161A (zh) * 2017-09-11 2018-01-19 上海天马有机发光显示技术有限公司 柔性显示面板及显示装置
CN107871451A (zh) * 2016-09-22 2018-04-03 三星显示有限公司 柔性显示面板及使其弯曲的方法
US20180331322A1 (en) * 2014-08-31 2018-11-15 Lg Display Co., Ltd. Display Device with Micro Cover Layer and Manufacturing Method for the Same
CN110649058A (zh) * 2019-09-27 2020-01-03 京东方科技集团股份有限公司 一种柔性显示模组、柔性显示装置
US20200185641A1 (en) * 2018-12-07 2020-06-11 Lg Display Co., Ltd. Flexible display apparatus
CN111816082A (zh) * 2020-08-13 2020-10-23 京东方科技集团股份有限公司 一种显示组件及其组装方法、显示装置
CN111951681A (zh) * 2020-08-21 2020-11-17 京东方科技集团股份有限公司 柔性显示面板及制造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107146527B (zh) * 2017-04-27 2020-01-03 上海天马微电子有限公司 一种柔性显示屏和柔性显示装置
KR20190128037A (ko) * 2018-05-03 2019-11-14 삼성디스플레이 주식회사 표시 장치 및 표시 장치용 지지필름 구조물
CN110277023A (zh) * 2019-05-30 2019-09-24 武汉华星光电半导体显示技术有限公司 显示面板及显示装置
CN210984090U (zh) * 2019-11-29 2020-07-10 京东方科技集团股份有限公司 显示装置
CN111091762B (zh) * 2020-01-08 2023-08-22 京东方科技集团股份有限公司 柔性显示面板组件和柔性显示装置
CN111863886B (zh) * 2020-07-02 2023-04-18 武汉华星光电半导体显示技术有限公司 一种柔性显示面板、柔性显示面板制程方法及显示装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180331322A1 (en) * 2014-08-31 2018-11-15 Lg Display Co., Ltd. Display Device with Micro Cover Layer and Manufacturing Method for the Same
CN107871451A (zh) * 2016-09-22 2018-04-03 三星显示有限公司 柔性显示面板及使其弯曲的方法
CN206610569U (zh) * 2017-04-01 2017-11-03 武汉天马微电子有限公司 一种柔性显示面板及柔性显示装置
CN107611161A (zh) * 2017-09-11 2018-01-19 上海天马有机发光显示技术有限公司 柔性显示面板及显示装置
US20200185641A1 (en) * 2018-12-07 2020-06-11 Lg Display Co., Ltd. Flexible display apparatus
CN110649058A (zh) * 2019-09-27 2020-01-03 京东方科技集团股份有限公司 一种柔性显示模组、柔性显示装置
CN111816082A (zh) * 2020-08-13 2020-10-23 京东方科技集团股份有限公司 一种显示组件及其组装方法、显示装置
CN111951681A (zh) * 2020-08-21 2020-11-17 京东方科技集团股份有限公司 柔性显示面板及制造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115240553A (zh) * 2022-07-28 2022-10-25 昆山国显光电有限公司 电子设备
CN115240553B (zh) * 2022-07-28 2023-11-21 昆山国显光电有限公司 电子设备

Also Published As

Publication number Publication date
CN115066717A (zh) 2022-09-16
CN115066717B (zh) 2024-01-19

Similar Documents

Publication Publication Date Title
US11892879B2 (en) Rollable display device and rollable device
JP6382652B2 (ja) フレキシブル表示装置
KR102243206B1 (ko) 플렉서블 표시장치
KR102334807B1 (ko) 플렉서블 윈도우 및 플렉서블 표시 장치
US20210083210A1 (en) Flexible element, flexible display device and manufacturing method thereof
CN110197620B (zh) 一种柔性显示模组及柔性显示装置
CN113707018B (zh) 显示模组及显示装置
US10923669B2 (en) Display device including a bending area and a panel-sheet coupling layer
KR102563749B1 (ko) 표시 장치 윈도우 및 이를 포함하는 표시 장치
TW201813081A (zh) 具有通用化層機械相容性的可折疊顯示器設計
US20240179863A1 (en) Flexible display module and mobile terminal
US20190129271A1 (en) Flexible electronic device
US20170054105A1 (en) Bendable device with a window top layer
WO2022141003A1 (zh) 一种柔性显示面板以及显示设备
TW201740588A (zh) 可撓性積層體以及使用其之可撓性顯示器
TWI648717B (zh) 可撓性電子裝置
CN114141149A (zh) 柔性显示模组及显示装置
CN112396964A (zh) 一种显示面板和显示装置
JP5777384B2 (ja) タッチパネル
CN114842747B (zh) 柔性盖板、柔性显示屏以及电子设备
CN114724465A (zh) 一种显示屏及显示装置
CN211481304U (zh) 柔性盖板组件、柔性显示屏及柔性电子设备
US20220367822A1 (en) Foldable display panel with improved impact resistance
CN115050278B (zh) 显示屏及显示装置
CN115064074B (zh) 显示装置、柔性显示面板及柔性显示面板的制备方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20967353

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20967353

Country of ref document: EP

Kind code of ref document: A1