WO2024124549A1 - 显示装置、支撑件、支撑件的制作方法及电子设备 - Google Patents

显示装置、支撑件、支撑件的制作方法及电子设备 Download PDF

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Publication number
WO2024124549A1
WO2024124549A1 PCT/CN2022/139677 CN2022139677W WO2024124549A1 WO 2024124549 A1 WO2024124549 A1 WO 2024124549A1 CN 2022139677 W CN2022139677 W CN 2022139677W WO 2024124549 A1 WO2024124549 A1 WO 2024124549A1
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Prior art keywords
groove
display device
bending
support
display panel
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PCT/CN2022/139677
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English (en)
French (fr)
Inventor
许琳琳
周永红
祝尚杰
史世明
高美玲
Original Assignee
京东方科技集团股份有限公司
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Priority to PCT/CN2022/139677 priority Critical patent/WO2024124549A1/zh
Publication of WO2024124549A1 publication Critical patent/WO2024124549A1/zh

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  • the present disclosure relates to the field of display technology, and in particular to a display device, a support member, a method for manufacturing the support member, and an electronic device.
  • a display device is a device that can display information such as text, images or videos.
  • Examples of display devices include liquid crystal display devices (LCD), organic light emitting diode display devices (OLED), plasma display devices, etc.
  • LCD liquid crystal display devices
  • OLED organic light emitting diode display devices
  • plasma display devices etc.
  • flexible display devices have attracted more and more attention due to their bendable, foldable or rollable properties.
  • a flexible display device can protect and support a flexible display panel by attaching a support structure to the bottom of the flexible display panel.
  • the entire support structure is made of stainless steel or alloy material, which is heavy, which in turn increases the weight of the display device and causes a poor user experience.
  • the embodiments of the present disclosure provide a display device, a support member, a method for manufacturing a support member, and an electronic device.
  • a display device comprising:
  • a display panel including a bending area and a non-bending area
  • a support member is located on the back of the display panel, and the support member includes:
  • a bending portion configured to be bendable to support the bending area, at least one side of the bending portion comprising a first groove
  • the support portion is configured to be connected to the bending portion through the first groove and to support the non-bending area, wherein the material density of the bending portion is different from that of the support portion.
  • the bending portion includes N openings, and the N openings are obtained by a first hole opening process.
  • the time for processing the N openings on the material of the bending portion using the first hole opening process is less than the time for processing the N openings on the material of the supporting portion, and N is greater than or equal to 1.
  • the at least one side extends in a direction parallel to the display panel, and the supporting portion includes:
  • a first protrusion is adaptively connected to the first groove.
  • the first groove comprises:
  • the first protrusion faces the right-angle groove of the display panel, and the shape of the first protrusion matches the right-angle groove.
  • the bending portion includes a first plane facing the display panel
  • the supporting portion includes a second plane facing the display panel
  • the first plane is coplanar with the second plane
  • the bending portion further includes a third plane opposite to the first plane
  • the supporting portion further includes a fourth plane opposite to the second plane
  • the third plane is coplanar with the fourth plane
  • the first protrusion and the first groove are adaptively connected by heat pressing or bonding.
  • the bottom of the first groove includes M second grooves, wherein each second groove is filled with a portion of the material of the support portion, the portion of the material of the support portion is fixedly connected to the first protrusion, and M is greater than or equal to 1.
  • the M second grooves include line grooves and/or hole grooves; and/or the M second grooves penetrate the bottom of the first groove.
  • each of the second grooves is partially filled with the material of the support portion, comprising:
  • the material of the supporting portion is heat pressed to each of the second grooves;
  • the support portion includes a third groove on a side facing away from the display panel, and at least a portion of the bent portion is embedded in the third groove.
  • the supporting portion includes a fifth plane facing the display panel, and the fifth plane is located between the bending portion and the display panel.
  • the at least one side includes S first grooves, wherein each first groove is partially filled with material of the support portion, and S is greater than or equal to 1.
  • each of the first grooves is partially filled with the material of the support portion, comprising:
  • the material of the supporting portion is heat pressed to each of the first grooves;
  • the S third protrusions in the third groove are embedded in the S first grooves in a one-to-one correspondence.
  • the first groove includes a rivet hole
  • the support portion is configured to be connected to the bending portion through the first groove, including:
  • the support portion is connected to the bending portion by a riveting process.
  • the bottom of the first groove includes at least one rivet hole, including:
  • the first protrusion is adaptively connected to the first groove through a riveting process.
  • the at least one side includes L fourth protrusions extending in a direction parallel to the display panel, and the first groove is formed between any two adjacent fourth protrusions, and L is greater than or equal to 2, wherein:
  • At least a portion of the plastic is configured to be filled into each of the first grooves through an injection molding process.
  • a groove bottom length of the first groove is greater than a groove opening length.
  • the material of the bending portion includes metal material
  • the material of the supporting portion includes carbon fiber prepreg or plastic.
  • the support portion is configured to be laid up by K layers of carbon fiber prepreg, where K is an odd number greater than 1.
  • any two adjacent layers of carbon fiber prepreg in the K layers of carbon fiber prepreg have different elastic moduli.
  • the support portion comprises:
  • a first supporting portion located at a first side of the bending portion, wherein the first supporting portion is configured to be connected to the bending portion through a first groove on the first side;
  • the second supporting portion is located on a second side of the bending portion, the second side is opposite to the first side, and the second supporting portion is configured to be connected to the bending portion through a first groove on the second side.
  • density of the material of the bending portion is greater than density of the material of the supporting portion.
  • the elastic modulus of the material of the bending portion is greater than the elastic modulus of the material of the supporting portion.
  • a support member for use in a display device as described in any one of the above items, wherein the display device comprises a display panel, and the support member comprises:
  • a bending portion configured as a bending area that can be bent to support the display panel, at least one side of the bending portion includes a first groove;
  • the support portion is configured to be connected to the bending portion through the first groove and to support the non-bending area of the display panel, wherein the material density of the bending portion is different from that of the support portion.
  • a method for manufacturing a support member wherein the support member is used for a display device as described in any one of the above items, wherein the display device includes a display panel, and the method includes:
  • a second material is provided to form a support portion, wherein the support portion is configured to be connected to the bending portion through the first groove and to support the non-bending area, wherein the material density of the bending portion is different from that of the support portion.
  • the support portion includes an overlap
  • the method includes connecting the support portion to the bending portion through the first groove:
  • the overlap is connected to the first groove by using a heat pressing process.
  • an electronic device wherein the electronic device includes the above-mentioned display device.
  • FIG. 1 is a perspective view of a display device according to some exemplary embodiments of the present disclosure
  • FIG. 2 is a plan view of a display device according to some exemplary embodiments of the present disclosure.
  • FIG. 3 is a cross-sectional view of a display device according to some exemplary embodiments of the present disclosure, taken along line AA′ in FIG. 2 ;
  • FIG. 4 is an enlarged plan view of a portion I of the display device in FIG. 3 according to some exemplary embodiments of the present disclosure
  • FIG. 5 is a cross-sectional view of a pixel structure of a display panel of a display device according to some exemplary embodiments of the present disclosure
  • FIG. 6 is a cross-sectional view of a display device according to some exemplary embodiments of the present disclosure in a state where the display device is folded along a bending area;
  • FIG. 7 is a cross-sectional view of a display device according to some other exemplary embodiments of the present disclosure in a state where the display device is folded along a bending area;
  • FIG8 is a front view of a support member according to some exemplary embodiments of the present disclosure.
  • FIG9 is a schematic diagram of a support member before connection according to some exemplary embodiments of the present disclosure.
  • FIG. 10 is a schematic diagram of the support member in FIG. 9 after connection according to some exemplary embodiments of the present disclosure.
  • FIG. 11 is an enlarged plan view of a portion II of FIG. 8 of the display device according to some exemplary embodiments of the present disclosure.
  • FIG12 is a flow chart of a method for manufacturing a support member according to some exemplary embodiments of the present disclosure.
  • FIG13 is a flow chart of a method for manufacturing a support member according to other exemplary embodiments of the present disclosure.
  • FIG. 14 is a rear view of a support member according to some exemplary embodiments of the present disclosure.
  • FIG. 15 is a cross-sectional view of a support member according to some exemplary embodiments of the present disclosure taken along line BB′ in FIG. 14 ;
  • FIG. 16 is a rear view of the bent portion in FIG. 14 according to some exemplary embodiments of the present disclosure.
  • 17( a ) to 17 ( c ) are schematic cross-sectional views of support members according to some exemplary embodiments of the present disclosure.
  • FIG. 18 is a rear view of a support member according to other exemplary embodiments of the present disclosure.
  • FIG. 19 is a rear view of a support member according to other exemplary embodiments of the present disclosure.
  • FIG. 20 is a rear view of the bent portion in FIG. 19 according to other exemplary embodiments of the present disclosure.
  • FIG. 21 is a schematic diagram of a support portion according to some exemplary embodiments of the present disclosure.
  • FIG. 22 is a schematic diagram of a support portion according to some other exemplary embodiments of the present disclosure.
  • FIG. 23 is a schematic diagram of carbon fiber layup according to other exemplary embodiments of the present disclosure.
  • connection may refer to physical connection, electrical connection, communication connection and/or fluid connection.
  • the X-axis, Y-axis and Z-axis are not limited to the three axes of the rectangular coordinate system, and can be interpreted in a broader sense.
  • the X-axis, Y-axis and Z-axis may be perpendicular to each other, or may represent different directions that are not perpendicular to each other.
  • "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z” may be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z such as XYZ, XYY, YZ, and ZZ.
  • the term "and/or" includes any and all combinations of one or more of the listed associated items.
  • first, second, etc. may be used herein to describe different elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the exemplary embodiment, a first element may be named a second element, and similarly, a second element may be named a first element.
  • spatially relative terms such as “under,” “below,” “below,” “down,” “above,” “up,” “above,” “higher,” or “side” (e.g., as in “sidewall”) may be used herein to describe the relationship of one element to another (or other) elements as shown in the figures.
  • spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture. For example, if the device in the figure is flipped, an element described as “under” or “beneath” other elements or features will subsequently be positioned as “above” the other elements or features.
  • the exemplary term “under” may encompass both above and below orientations.
  • the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein are interpreted accordingly.
  • Elastic modulus is a physical quantity that describes the elasticity of a material. It is a general term and can be expressed as "Young's modulus", “bulk modulus”, etc.
  • Bending strength refers to the maximum stress that a material can withstand when it breaks under a bending load or reaches a specified bending moment. This stress is the maximum positive stress during bending. It reflects the material's ability to resist bending and is used to measure the material's bending performance.
  • the "hole-opening process” is a method and process that uses relevant equipment to process the parts to be opened through temperature, chemical reaction, laser or pressure, and finally forms a hole.
  • Hot pressing is to put the parts to be connected into the hot pressing mold, fix the parts to be connected in the mold to the heating part with pressure, control the temperature and time to achieve hardening and cooling after melting, and then take out the finished support part.
  • the "riveting process” is a method and process of using axial force to thicken the rivet rod in the rivet hole of the part and form a rivet head, so as to connect the parts to be connected.
  • injection molding process refers to the process of injecting, cooling, and separating molten raw materials into a support part of a desired shape.
  • Carbon fiber prepreg is made by processing carbon fiber tows, resin, etc. through coating, hot pressing, cooling, laminating, and rolling.
  • FIG. 1 is a perspective view of a display device according to some exemplary embodiments of the present disclosure.
  • FIG. 2 is a plan view of a display device according to some exemplary embodiments of the present disclosure.
  • FIG. 3 is a cross-sectional view of a display device according to some exemplary embodiments of the present disclosure taken along line AA' in FIG. 2.
  • FIG. 4 is an enlarged plan view of a portion I of a display device in FIG. 3 according to some exemplary embodiments of the present disclosure.
  • the display device 100 may be applicable to a mobile terminal, for example.
  • mobile terminals include a tablet personal computer (PC), a smart phone, a personal digital assistant (PDA), a portable multimedia player, a game console, or a wristwatch-type electronic device, etc.
  • PC personal computer
  • PDA personal digital assistant
  • the embodiments of the present disclosure are not intended to limit the type of mobile terminal to which the display device 100 is applicable.
  • the display device 100 may be used not only in large electronic devices such as a television (TV) or an external billboard, but also in medium-sized or small electronic devices such as a PC, a notebook computer, a car navigation device, or a camera.
  • the display device 100 may have a rectangular shape in a plan view.
  • the display device 100 may have two short sides extending in a first direction x and two long sides extending in a second direction y.
  • the angle at which the two long sides and the two short sides of the display device 100 intersect may be a right angle or may be an arc.
  • the embodiments of the present disclosure are not intended to limit the planar shape of the display device 100.
  • the display device 100 may have a circular shape, a polygonal shape, or other shapes in a plan view.
  • the display device 100 may include a display panel 1 and a support member 3 .
  • the display panel 1 may be a display panel including a light-emitting element.
  • the display panel 1 may include an organic light-emitting diode (OLED), a quantum dot light-emitting diode (QLED), and/or a micro-LED based on an inorganic material.
  • OLED organic light-emitting diode
  • QLED quantum dot light-emitting diode
  • micro-LED micro-LED based on an inorganic material.
  • the display panel 1 of the display device 100 may include components such as a base substrate 11, a driving layer 12, an organic light emitting element layer 13, an encapsulation layer 14, a polarizer 15, and a cover plate 16. It should be understood that the display panel 1 may also include other film layers or components, and the embodiments of the present disclosure do not describe them exhaustively.
  • the terms “upper”, “top”, “top surface” and “upward” used in this document refer to the display side of the display panel 1, that is, one side of the display panel 1 in the Z-axis direction
  • the terms “lower”, “bottom”, “bottom surface”, “back” and “downward” used in this document refer to the opposite side of the display panel 1 relative to the display side, that is, the side of the display panel 1 in the opposite direction of the z-axis direction.
  • the base substrate 11 provides the bottom surface of the display panel 1.
  • the base substrate 11 may be a flexible substrate, and may include a plastic material having relatively excellent heat resistance and durability, such as polyethylene phthalate, polyethylene naphthalate (PEN), polycarbonate (PC), polyarylate, polyetherimide, polyethersulfone (PES), or polyimide (PI).
  • a plastic material having relatively excellent heat resistance and durability such as polyethylene phthalate, polyethylene naphthalate (PEN), polycarbonate (PC), polyarylate, polyetherimide, polyethersulfone (PES), or polyimide (PI).
  • PI polyimide
  • the display panel 1 includes a bending area A1 and a non-bending area A2.
  • the display panel 1 may be suitable for a full screen (for example, the display area DA for displaying information such as images accounts for more than 90%, which is only an example), and the bending area A1 and the non-bending area A2 shown in FIG1 and FIG2 may both be the display area DA.
  • the embodiments of the present disclosure do not necessarily limit the screen-to-body ratio of the display panel 1.
  • the display panel 1 may have a display area DA and a non-display area NDA that does not display information such as images.
  • the non-display area NDA may be set to be adjacent to the display area DA, for example, surrounding the display area DA.
  • the bending area A1 may extend through the non-display area NDA along a first direction x. In some exemplary embodiments, the bending area A1 may also extend through the non-display area NDA along a second direction y (not shown).
  • the display panel 1 can be bent or folded along a bending axis BX1 located in the bending area A1, and the bending axis BX1 extends in the bending area A1 along the first direction x. With the help of the bending area A1, the display panel 1 can be bent or folded.
  • bending axis refers to an imaginary line rather than a physical axis or physical structure. Generally, a component with a bending axis can be bent or folded around the bending axis.
  • the display panel 1 is a flexible display panel. That is, in addition to the portion in the bending area A1 that can be bent or folded, other portions of the display panel 1 can also be flexible, that is, can be bent or folded, thereby realizing a flexible display device.
  • the bending area A1 is an area where the flexible display panel can realize the bendable, foldable or rollable function, and a bending portion 31 of the support member 3 is arranged below it.
  • the non-bending area A2 is other areas outside the bending area A1, and the flexible display panel in the non-bending area A2 is also bendable, foldable or rollable, and a support portion 32 of the support member 3 is arranged below it.
  • the support 3 may be disposed under the display panel 1.
  • the support 3 may be coupled to the bottom surface (back surface) of the display panel 1.
  • the support 3 may support the flexible display panel 1 and may protect the bottom surface of the display panel 1.
  • the support member 3 includes a bending portion 31 and a supporting portion 32.
  • the bending portion 31 may overlap (e.g., coincide with) the bending area A1 of the display panel 1, that is, the orthographic projection of the bending area A1 of the display panel 1 on the support member 3 falls into the bending portion 31.
  • the supporting portion 32 may overlap (e.g., coincide with) the non-bending area A1 of the display panel 1, that is, the orthographic projection of at least part of the non-bending area A2 of the display panel 1 on the support member 3 falls into the supporting portion 32.
  • the bending portion 31 may partially overlap with the bending area A1 of the display panel 1 instead of completely overlapping.
  • the area of the bending portion 31 is larger than the orthographic projection of the bending area A1 on the support member 3. In other words, at least part of the orthographic projection of the non-bending area A2 on the support member 3 falls on the bending portion.
  • FIG. 5 is a cross-sectional view of a pixel structure of a display panel of a display device according to some exemplary embodiments of the present disclosure.
  • the driving transistor Qd includes an active layer 121, a gate electrode 123, a source electrode 125, and a drain electrode 127.
  • the active layer 121 may be disposed on the base substrate 11.
  • the driving layer 12 may further include a first insulating layer 122 disposed between the active layer 121 and the gate electrode 123.
  • the first insulating layer 122 may insulate the active layer 121 and the gate electrode 123 from each other.
  • the driving layer 12 may further include a gate insulating layer 124 disposed between the gate electrode 123 and the source electrode 125 and between the gate electrode 123 and the drain electrode 127, and a second insulating layer 126 disposed on a side of the gate insulating layer 124 away from the base substrate 11.
  • the source electrode 125 and the drain electrode 127 may be electrically connected to the active layer 121 via contact holes CH1 and CH2 formed in the first insulating layer 122, the gate insulating layer 124, and the second insulating layer 126, respectively.
  • the driving layer 12 may further include a passivation film 128 disposed on the source electrode 125 and the drain electrode 127 .
  • the switching transistor may have a structure substantially the same as that of the driving transistor Qd or a structure similar to that of the driving transistor Qd, but exemplary embodiments are not limited thereto. That is, alternatively, the switching transistor and the driving transistor Qd may have different structures.
  • the active layer of the switching transistor and the active layer 121 of the driving transistor Qd may be placed on different layers.
  • the driving layer 12 may be disposed not only in the display area DA but also in the non-display area NDA.
  • the driving layer 12 may further include a plurality of wirings electrically connected to a driving integrated circuit (IC), and these wirings may be located in the non-display area NDA.
  • IC driving integrated circuit
  • the driving layer 12 may further include a capacitor Cst.
  • the capacitor Cst includes a first plate C1 and a second plate C2 that are oppositely and spaced apart.
  • the first plate C1 may be located on the same layer as the gate electrode 123
  • the second plate C2 may be located on a side of the gate insulating layer 124 away from the base substrate 11.
  • both the first plate C1 and the second plate C2 may be made of the same material as the gate electrode 123.
  • the organic light emitting element layer 13 may include an organic light emitting element as an emission element.
  • the organic light emitting element may be a top emission-type and may emit light in an upward direction, i.e., in the z-axis direction.
  • the organic light emitting element may include a first electrode 131 , an organic layer 132 , and a second electrode 133 .
  • the first electrode 131 is disposed on the passivation film 128.
  • the first electrode 131 is electrically connected to the drain electrode 127 via a contact hole CH3 formed in the passivation film 128.
  • the first electrode 131 may be a pixel electrode or an anode.
  • the organic layer 132 may include an organic emission layer formed of a low-molecular organic material or a polymer organic material.
  • the organic emission layer may emit light based on a voltage difference between the first electrode 131 and the second electrode 133.
  • the organic layer 132 may further include at least one of a hole transport layer (HTL), a hole injection layer (HIL), an electron transport layer (ETL), and an electron injection layer (EIL). Therefore, holes from the first electrode 131 and electrons from the second electrode 133 may be injected into the organic layer 132.
  • HTL hole transport layer
  • HIL hole injection layer
  • ETL electron transport layer
  • EIL electron injection layer
  • the second electrode 133 may be disposed on the organic layer 132.
  • the second electrode 133 may be a common electrode or a cathode.
  • the organic light emitting element layer 13 may further include a pixel defining layer PDL disposed on the passivation film 128 .
  • the organic light emitting element layer 13 may be disposed only in the display area DA of the display panel 1 , and not in the non-display area NDA.
  • the encapsulation layer 14 may be disposed on the organic light emitting element layer 13.
  • the encapsulation layer 14 may protect the organic light emitting element layer 13 from external moisture and air.
  • the encapsulation layer 14 may be formed as a thin film encapsulation layer and may include at least one organic film and at least one inorganic film.
  • the encapsulation layer 14 may include a first inorganic film 141 disposed on the second electrode 133, an organic film 145 disposed on the first inorganic film 141, and a second inorganic film 143 disposed on the organic film 145.
  • moisture, air, etc. can be effectively prevented from penetrating from the outside of the display panel 1 to the inside of the display panel 1.
  • the polarizer 15 may be disposed only in the display area DA of the display panel 1 , and not in the non-display area NDA.
  • the cover plate 16 is attached to the polarizer 15 via an optical adhesive layer.
  • the cover plate 16 may cover the entire upper surface of the display panel 1 , that is, cover the display area DA and the non-display area NDA of the display panel 1 .
  • FIG. 6 is a cross-sectional view of a display device according to some exemplary embodiments of the present disclosure in a state where the display device is folded along a bending region.
  • the display panel 1 can be folded or bent outward in the bending area A1 along the bending axis BX1 (see FIG1 ) extending in the first direction x. That is, after being folded or bent outward, the display panel 1 can be located outside for users to watch, and the resulting viewable screen size can be different, which can meet the needs of customers for products of different sizes, and can also reduce the storage size of the product, making it easier to store and carry.
  • the relevant screen of the display panel 1 can also be seen directly when the product is turned on, avoiding frequent folding of the product.
  • FIG. 7 is a cross-sectional view of a display device according to some other exemplary embodiments of the present disclosure in a state where the display device is folded along a bending region.
  • the display panel 1 can be folded or bent inwardly in the bending area A1 along the bending axis BX1 (see FIG. 1 ) extending in the first direction x. That is, after being folded or bent inwardly, the display panel 1 can be located inside, which can also reduce the storage size of the product, making it easier to store and carry.
  • the display panel 1 can also be protected in the folded state and can be opened to realize a large-size display when it is needed for viewing.
  • FIG8 is a front view of a support member according to some exemplary embodiments of the present disclosure.
  • FIG9 is a schematic diagram of a support member before connection according to some exemplary embodiments of the present disclosure.
  • FIG10 is a schematic diagram of a support member in FIG9 after connection according to some exemplary embodiments of the present disclosure.
  • FIG11 is an enlarged plan view of a portion II of a display device in FIG8 according to some exemplary embodiments of the present disclosure.
  • the display panel 1 includes a bending area A1 and a non-bending area A2.
  • the support member 3 is located on the back of the display panel 1, and the support member 3 includes a bending portion 31 and a supporting portion 32.
  • the bending portion 31 is configured to bendably support the bending area A1, and at least one side of the bending portion 31 includes a first groove 311.
  • the supporting portion 32 is configured to be connected to the bending portion 31 through the first groove 311, and supports the non-bending area A2, wherein the material density of the bending portion 31 is different from that of the supporting portion 32.
  • the common support material is made of stainless steel as a whole, and the density is about 7.93g/cm-3, which is relatively high. If a large-sized support is processed, the weight will be very heavy.
  • the support member of the disclosed embodiment can reduce the weight problem caused by using the same metal material as the whole by making the material density of the bending part different from that of the supporting part, thereby achieving the purpose of weight reduction.
  • the support part is connected to the bending part through the first groove, so that the two can be more firmly connected, thereby improving the durability of the support member.
  • the material of the bending portion 31 may include a metal material, such as a metal alloy material such as stainless steel, titanium alloy, copper alloy, etc.
  • the material of the supporting portion 32 may include a carbon fiber prepreg or plastic, etc.
  • the bending portion 31 includes N openings 312, and the N openings 312 are obtained by a first opening process.
  • the time for processing the N openings 312 on the material of the bending portion 31 using the first opening process is less than the time for processing the N openings 312 on the material of the supporting portion 32, and N is greater than or equal to 1.
  • each opening 312 passes through the bending portion 31 and is in the shape of an elongated ellipse.
  • the openings 312 in two adjacent rows are arranged alternately, and the openings 312 in two rows separated by one row are arranged in an aligned manner.
  • the disclosed embodiment does not intend to limit the N openings 312 to the schematic diagram of FIG. 11 .
  • the shape of the openings 312, the arrangement of the openings 312, or the depth of the openings 312 can be flexibly set.
  • the openings 312 can be in the shape of a rhombus, rectangle, circle, or polygon, and the arrangement of the openings 312 can be realized according to a specific pattern.
  • the support member 3 in the related art is made of stainless steel as a whole, which results in a heavy weight of the display device.
  • Materials such as carbon fiber and plastic have a lower density. If they are used in the design of the support member 3, the weight can be greatly reduced.
  • the pattern processing of carbon fiber materials can only use the laser drilling process, which is very inefficient, especially when the support member 3 is used for a large-sized display panel 1. It is not suitable for mass production. For example, the laser drilling process can only punch holes one by one, and the efficiency is very low. An 8-inch product takes 20-30 minutes. If the support member 3 is adapted to a larger-sized folding display panel 1, it may take more than an hour, which is not suitable for mass production.
  • the first hole-opening process includes an etching process, for example, the material of the bending portion 31 includes a metal material, and the material of the supporting portion 32 includes a carbon fiber prepreg or a plastic. Then the etching process can quickly obtain N holes 312 in the bending portion 31, while the etching process may not be able to obtain the holes 312 when used on the carbon fiber prepreg. In this case, the time for processing the N holes 312 on the material of the bending portion 31 using the first hole-opening process is less than the time for processing the N holes 312 on the material of the supporting portion 32.
  • the weight of the support member 3 can be further reduced, and the equivalent modulus of the bending portion 31 can be reduced to facilitate bending.
  • the processing efficiency can be improved.
  • the first hole opening process can also include other punching processes. Under the premise of achieving the purpose of weight reduction and improving processing efficiency, it is not limited to the above etching process, nor is it limited to the material of the bending part 31 being metal and the material of the supporting part 32 being carbon fiber prepreg or plastic.
  • At least one side of the bending portion 31 extends in a direction parallel to the display panel 1 , and the supporting portion 32 includes a first protrusion 321 , and the first protrusion 321 is adaptively connected to the first groove 311 .
  • the xy plane is parallel to the display panel 1, and the first direction x and the second direction y are both parallel to the display panel 1.
  • at least one side of the bending portion 31 may include one or both sides extending along the second direction y.
  • FIG9 and FIG10 show that the bending portion 31 has two opposite first grooves 311, the first groove 311 may be provided only on one side along the second direction y.
  • the first groove 311 is provided only on the left side as shown in FIG9
  • the bending portion 31 and the right side support portion 3232 are an integrally formed structure and are made of the same material, such as metal material.
  • the first groove 311 comprises a right-angle groove facing the display panel 1 , and the shape of the first protrusion 321 matches the right-angle groove.
  • the first protrusion 321 is in the shape of a cuboid, and there is also a groove below the first protrusion 321 that is 180 degrees clockwise rotated from the first groove 311, so it can be connected as shown in Figure 10.
  • the first grooves 311 on the left and right sides can be the same, for example, the parameters such as shape, depth and width are the same.
  • the first grooves 311 on the left and right sides can be different, for example, at least one parameter such as shape, depth and width is different.
  • the shape of the first protrusion 321 is adaptively adjusted according to the first groove 311 to which it is adapted.
  • the first groove 311 may also face away from the display panel 1, for example, based on the structure shown in Figure 10, it may be flipped downward 180 degrees around the y-axis.
  • the lower end surface of the current bending portion 31 faces the display panel 1 after flipping, so that the contact area with the display panel 1 is larger and the mold imprint is reduced.
  • the first groove 311 may be in other forms besides a right-angle groove.
  • the bottom of the first groove 311 shown in FIG. 9 is raised, while the bottom of the corresponding first protrusion 321 is recessed. The two may engage with each other to resist forces in the x or y direction.
  • the bending portion 31 includes a first plane 313 facing the display panel 1
  • the supporting portion 32 includes a second plane 322 facing the display panel 1
  • the first plane 313 and the second plane 322 are coplanar.
  • coplanarity means that the flatness is within the allowable range, for example, less than 2 mm, so that the support member 3 can be better fitted with the display panel 1 and have better supporting performance.
  • the thickness of the bent portion 31 may be smaller than the thickness of the support member 3 , or may be equal to the thickness of the support member 3 .
  • the bending portion 31 further includes a third plane 314 opposite to the first plane 313
  • the supporting portion 32 further includes a fourth plane 323 opposite to the second plane 322
  • the third plane 314 and the fourth plane 323 are coplanar.
  • the third plane 314 and the fourth plane 323 are in the same plane, and in this case, the coplanarity means that the flatness is within the allowable range, for example, less than 2 mm.
  • the thickness of the entire support member 3 is consistent, that is, the thickness of the bending portion 31 is equal to the thickness of the support member 3, avoiding the problem that the middle of the support member 3 is concave and has no support when the thickness of the middle is lower than that of the two sides, resulting in a deeper mold printing.
  • the first protrusion 321 is connected to the first groove 311 by heat pressing or bonding.
  • the manufacturing process of the support member 3 is further described below in conjunction with FIG. 12 and FIG. 13 .
  • Fig. 12 is a flow chart of a method for manufacturing a support member 3 according to some exemplary embodiments of the present disclosure.
  • Fig. 13 is a flow chart of a method for manufacturing a support member 3 according to some other exemplary embodiments of the present disclosure.
  • a first material is provided to form a bending portion 31 having a first groove 311 on at least one side thereof, and the bending portion 31 is configured as a bending area A1 that can be bent to support the display panel 1 .
  • the bending portion 31 can be made of metal, such as titanium alloy and stainless steel, and N openings 312 can be processed to form a hollow pattern area.
  • the hollow pattern area can be processed by etching and chemical etching with a mask.
  • a second material is provided to form a support portion 32, and the support portion 32 is configured to be connected to the bending portion 31 through the first groove 311 and to support the non-bending area A2, wherein the material density of the bending portion 31 is different from that of the support portion 32.
  • the support portion 32 may be made of carbon fiber prepreg or plastic.
  • the metal parts are processed and the etching method is used.
  • the middle pattern area is etched synchronously.
  • the hot pressing mold is made. Since two materials are used, the metal and carbon fiber prepreg have different thermal expansion rates under high temperature and high pressure.
  • the mold cannot be made into a steel sheet with two flat surfaces like the same material. It is necessary to make a concave and convex design corresponding to the position of different materials according to the actual composite scheme drawing to match the thermal expansion rate of different materials, so as to achieve the effect of flat surface after hot pressing, and make the flatness of the plate after composite to be less than 2mm.
  • the carbon fiber prepreg is cut accordingly according to the size of the support 3.
  • the mold is cleaned.
  • the impurities, dust, etc. inside the mold need to be cleaned to ensure that the mold surface is clean and tidy to prevent the presence of foreign matter on the surface of the support 3.
  • a release agent is applied.
  • a release agent is applied on it.
  • the support 3 is formed, the demoulding of the support 3 is completed to avoid the situation where the support 3 is bonded to the mold.
  • the carbon fiber prepreg is layered to form the prototype of the support part 32.
  • Operation S1310 and operation S1320 are then performed as follows.
  • the support portion 32 and the bending portion 31 are placed in a hot pressing mold, wherein the areas in the hot pressing mold corresponding to the support portion 32 and the bending portion 31 have different depths, respectively, and the support portion 32 includes an overlap.
  • the overlapped part is the first protrusion 321 shown in Figures 9 and 10.
  • the depth is in the z-axis direction, and the mold parts corresponding to the bottom and top of the support member 3 can be designed to be concave and convex.
  • the mold is filled, for example, the metal part is placed in the middle of the mold first, and then the carbon fiber prepreg is filled in order of ply to ensure the flatness of the ply. Then the mold is closed, that is, the mold is fixed with screws to ensure the size of the molded product.
  • the curing molding is carried out, the mold is sent to the hot press, the pressure and temperature are controlled, and the mold is cooled after a certain period of time. Finally, the mold is demoulded, the mold is removed, and the support member 3 is taken out.
  • the etching method is used to synchronously etch the middle pattern area.
  • the shape of the metal part is first etched out, and the middle pattern is not etched first. Then the metal part is compounded with the carbon fiber prepreg and hot-pressed to obtain the overall shape (the hot-pressing mold is also a concave-convex design).
  • the size obtained after hot pressing can be larger than the final product. The purpose is to accurately cut the size of the subsequent product.
  • the carbon fiber part of the product is wrapped, and the metal part is pattern-etched to obtain the middle pattern. Finally, the oversized size of the carbon fiber part is laser cut to obtain the final product size.
  • the advantage of hot-pressing and then pattern etching in this embodiment is that the pattern can maintain a good size and shape, avoiding deformation during hot pressing and resin flowing into the opening.
  • a layer of glue can be applied between the overlap and the first groove 311 before hot pressing the mold, and the upper surface of the first groove 311 can be roughened to increase the bonding strength.
  • the upper surface of the first groove 311 is first polished, placed in the mold, glue is applied to the polished part, and then the carbon fiber prepreg is layered, and finally the mold is hot pressed to obtain the molded support member 3.
  • bonding may be used alone.
  • glue is applied to the joint between the overlap and the first groove 311 for bonding.
  • Fig. 14 is a rear view of a support member 3 according to some exemplary embodiments of the present disclosure.
  • Fig. 15 is a cross-sectional view of a support member 3 taken along line BB' in Fig. 14 according to some exemplary embodiments of the present disclosure.
  • Fig. 16 is a rear view of a bent portion 31 in Fig. 14 according to some exemplary embodiments of the present disclosure.
  • the support portion 32 in Fig. 14 is filled with a dot pattern.
  • the bottom of the first groove 311 includes M second grooves 315, wherein each second groove 315 is filled with the material of a portion of the supporting portion 32, and the material of the portion of the supporting portion 32 is fixedly connected to the first protrusion 321, and M is greater than or equal to 1.
  • each second groove 315 is filled with a portion of the material of the supporting portion 32, which increases the bonding force between the bending portion 31 and the supporting portion 32. Since a portion of the material of the supporting portion 32 extends into or even penetrates the second groove 315 of the bending portion 31, it at least plays a role in resisting the force in the x or y direction, making it difficult for the bending portion 31 and the supporting portion 32 to separate during multiple bending processes.
  • the M second grooves 315 include wire grooves and/or hole grooves, and/or the M second grooves 315 penetrate the bottom of the first groove 311 .
  • the hole groove may include a circular, rectangular or other polygonal recessed portion.
  • the wire groove includes a slit or rectangular recessed portion, and the wire groove may be formed by a plurality of connected hole grooves.
  • the second groove 315 may be a through groove or a blind groove.
  • the through groove passes through the bottom of the first groove 311.
  • the depth of the blind groove is less than the thickness of the bottom of the first groove 311, that is, it does not pass through the bottom of the first groove 311.
  • each second groove 315 is filled with the material of the partial support portion 32 , including: the material of the partial support portion 32 is hot pressed to each second groove 315 .
  • the second groove 315 area (such as above and/or inside the second groove 315) is also laid with small pieces of carbon fiber prepreg.
  • the resin in the second groove 315 area melts and fills into the second groove 315, and the first protrusion 321 is connected to the other parts of the first groove 311 due to hot pressing.
  • the above-mentioned small piece of carbon fiber prepreg is laid below the first protrusion 321 area before hot pressing, and it is fixedly connected to the first protrusion 321 after hot pressing.
  • each second groove 315 is partially filled with the material of the supporting portion 32 , including: the M second protrusions on the first protrusion 321 are embedded in the M second grooves 315 in a one-to-one correspondence.
  • M second protrusions are first fixedly connected below the first protrusion 321. After applying glue, each second protrusion is embedded in the corresponding second groove 315. Alternatively, each second protrusion is embedded in the corresponding second groove 315 and then hot-pressed.
  • the thickness of the bending portion 31 of this embodiment may be smaller than the thickness of the support member 3 , or may be equal to the thickness of the support member 3 .
  • 17( a ) to 17 ( c ) are schematic cross-sectional views of the support member 3 according to some exemplary embodiments of the present disclosure.
  • the support portion 32 includes a third groove on a side away from the display panel 1, and at least part of the bent portion 31 is embedded in the third groove.
  • the third groove is a concave portion below the support portion 32 filled by the bent portion 31.
  • the support portion 32 includes a fifth plane 324 facing the display panel 1, and the fifth plane 324 is located between the bent portion 31 and the display panel 1.
  • the surface layer of the support member 3 facing the display panel 1 is a carbon fiber prepreg, and the bent portion 31 is embedded below. This method can increase the surface flatness and reduce mold printing.
  • At least one side of the bending portion 31 includes S first grooves 311 , wherein each first groove 311 is partially filled with material of the supporting portion 32 , and S is greater than or equal to 1.
  • the first groove 311 may be a right-angle groove, and the right-angle groove may be a groove that runs through the first direction x, with only one right-angle groove on one side. Or the right-angle groove may be multiple, arranged at intervals along the first direction x.
  • one or more second grooves 315 may be included at the bottom of the right-angle groove.
  • Each first groove 311 and each second groove 315 are filled with part of the material of the support portion 32. The filling of this embodiment may be embedded in the preformed protrusion on the support portion 32, or may be filled by the resin melting after the laminated carbon fiber prepreg is hot-pressed as described above.
  • the first groove 311 of this embodiment is a recessed portion formed along the third direction z, which may be a through groove or a blind groove.
  • the upper surface of the bending portion 31 is connected to the third groove, and the first groove 311 is filled with the material of a part of the supporting portion 32, for example, embedded by S third protrusions, or filled with resin melted after the laminated carbon fiber prepreg is hot-pressed as described above. It has a resistance effect on the forces in the xyz directions.
  • the bending portion 31 may be placed in a mold first, and then carbon fiber prepreg may be laid layer by layer.
  • one or more layers of carbon fiber prepreg may be laid as a whole above the bending portion 31 to form a fifth plane 324.
  • the fifth plane 324 is at the same position as the second plane 322. Referring to the embodiment of FIG. 10 or FIG. 15, the second plane 322 includes two separated parts, while the fifth plane 324 is a whole.
  • the third plane 314 of the bending portion 31 of this embodiment may be coplanar with the fourth plane 323 of the supporting portion 32 , or may be recessed inwardly relative to the fourth plane 323 .
  • Fig. 18 is a rear view of a support member 3 according to some other exemplary embodiments of the present disclosure.
  • the cross-sectional view taken along line CC' in Fig. 18 may refer to Fig. 15, Fig. 17(a) or Fig. 17(c).
  • the first groove 311 includes a rivet hole 316
  • the support portion 32 is configured to be connected to the bending portion 31 through the first groove 311 , including: connecting the support portion 32 to the bending portion 31 through a riveting process.
  • the bottom of the first groove 311 includes at least one rivet hole 316 , including: the first protrusion 321 is adapted to be connected to the first groove 311 by a riveting process.
  • the rivet when an external force is applied to the support portion 32 and the bending portion 31 in the x or y direction to separate the two, the rivet can effectively block the force.
  • Fig. 19 is a rear view of a support member 3 according to some other exemplary embodiments of the present disclosure.
  • Fig. 20 is a rear view of a bent portion 31 in Fig. 19 according to some other exemplary embodiments of the present disclosure.
  • At least one side includes L fourth protrusions 317 extending in a direction parallel to the display panel 1, and a first groove 311 is formed between any two adjacent fourth protrusions 317, L is greater than or equal to 2, wherein: at least part of the plastic is configured to be filled into each first groove 311 through an injection molding process.
  • the length of the bottom of the first groove 311 along the direction perpendicular to the extension direction of the fourth protrusion is greater than the length of the notch.
  • the first groove 311 is an inverted trapezoid.
  • the fourth protrusion 317 is a "T" shape, with the horizontal line of the "T" facing outward, the first groove 311 is a rectangle with a notch (i.e., a notch) composed of two adjacent "T" shapes.
  • Fig. 21 is a schematic diagram of a support portion according to some exemplary embodiments of the present disclosure.
  • Fig. 22 is a schematic diagram of a support portion according to some other exemplary embodiments of the present disclosure.
  • Fig. 23 is a schematic diagram of a carbon fiber layup according to some other exemplary embodiments of the present disclosure.
  • the support portion 32 is configured to be laid up by K layers of carbon fiber prepreg, where K is an odd number greater than 1.
  • FIG21 is a schematic diagram of a support portion 32 obtained from three layers of carbon fiber prepreg, wherein the thickness of the first protrusion 321 is 1.5 layers of carbon fiber prepreg.
  • FIG22 is a schematic diagram of a support portion 32 obtained from five layers of carbon fiber prepreg, wherein the thickness of the first protrusion 321 is 2.5 layers of carbon fiber prepreg. It is particularly noted that the thickness of the first protrusion 321 is only an example and can be flexibly set.
  • the structure of the support portion of this embodiment is that the fiber directions of adjacent layers are perpendicular to each other and conform to the principle of symmetry as a whole, so its total number of layers is an odd number.
  • the angles between the fiber directions of each layer are staggered, and the layers are laid in sequence according to 0°/90°. Since carbon fiber is an anisotropic material and has mechanical properties along the fiber direction, carbon fiber prepregs in different directions are laid together to increase their mechanical properties in other directions.
  • the layers can also be laid in sequence in a +45°/-45° manner.
  • the elastic modulus of any two adjacent layers of carbon fiber prepreg can be the same, that is, the carbon fiber filaments are of the same type.
  • the carbon fiber filaments are of the same type.
  • the overall elastic modulus is about 50-60 GPa.
  • the elastic modulus of any two adjacent layers of carbon fiber prepreg in the K layer of carbon fiber prepreg is different. Taking FIG. 21 as an example, if three layers are laid using carbon fiber filaments of T700/M40/T700 in an interlaced manner, the overall modulus is about 70-150 GPa, which can increase the bendability and stiffness of the support member 3.
  • the support portion 32 includes: a first support portion 32, located at a first side of the bending portion 31, and the first support portion 32 is configured to be connected to the bending portion 31 through a first groove 311 on the first side.
  • the density of the material of the bending portion 31 is greater than the density of the material of the supporting portion 32.
  • the material of the bending portion 31 is metal material
  • the material of the supporting portion 32 is carbon fiber prepreg or plastic.
  • the elastic modulus of the material of the bending portion 31 is greater than the elastic modulus of the material of the supporting portion 32.
  • the elastic modulus of the metal material is greater than the elastic modulus of the carbon fiber prepreg.
  • the elastic modulus of stainless steel is about 200 GPa, and the above three layers are laid with carbon fiber filaments of T700/M40/T700 staggered, and the overall modulus is about 70-150 GPa, so the elastic modulus of stainless steel is greater than the elastic modulus of the entire supporting portion or a single layer of carbon fiber prepreg.
  • an electronic device may be a device including a display function, that is, a device including the above-mentioned display device.
  • the electronic device may be a smart phone, a mobile phone, a video phone, an e-book reader, a desktop computer (PC), a laptop PC, a netbook PC, a personal digital assistant (PDA), a portable multimedia player (PMP), a digital audio player, a mobile medical device, a camera, a wearable device (such as a head-mounted device, an electronic clothing, an electronic bracelet, an electronic necklace, an electronic accessory, an electronic tattoo, or a smart watch), etc.
  • the electronic device may be a smart home appliance including a display function.
  • the smart home appliance may be a television, a digital video disk (DVD) player, a stereo, a refrigerator, an air conditioner, a vacuum cleaner, an oven, a microwave oven, a washing machine, a dryer, an air purifier, a set-top box, a television (TV) box, a game console, an electronic dictionary, an electronic key, a video camera, an electronic photo frame, etc.
  • DVD digital video disk
  • the electronic device may be a medical device (e.g., a magnetic resonance angiography (MRA) device, a magnetic resonance imaging (MRI) device, a tomography (CT) device, an imaging device, or an ultrasound device), a navigation device, a global positioning system (GPS) receiver, an event data recorder (EDR), a flight data recorder (FDR), an automobile infotainment device, a marine electronic device (e.g., a marine navigation device, a gyroscope, or a compass), an avionics device, a security device, an industrial or consumer robot, an automatic teller machine (ATM), a point of sale (POS), etc.
  • MRA magnetic resonance angiography
  • MRI magnetic resonance imaging
  • CT tomography
  • ultrasound device an ultrasound device
  • GPS global positioning system
  • EDR event data recorder
  • FDR flight data recorder
  • automobile infotainment device e.g., a marine navigation device, a gyroscope,
  • the electronic device may be furniture including a display function, a part of a building/structure, an electronic bulletin board, an electronic signature receiving device, a projector, a variety of measuring devices (e.g., a water meter, an electric meter, a gas meter, or an electromagnetic wave measuring device), etc.
  • the electronic device may be any combination of the aforementioned devices.
  • the electronic device may be a flexible device.
  • the electronic device is not limited to the above-mentioned devices.

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Abstract

提供了一种显示装置、用于显示装置的支撑件、支撑件的制作方法以及电子设备。所述显示装置包括：显示面板，包括弯折区和非弯折区；支撑件，位于所述显示面板的背面，所述支撑件包括：弯折部，被配置为可弯折的支撑所述弯折区，所述弯折部的至少一侧包括第一凹槽；支撑部，被配置为通过所述第一凹槽与所述弯折部连接，且支撑所述非弯折区，其中，所述弯折部的材料与所述支撑部的材料密度不同。

Description

显示装置、支撑件、支撑件的制作方法及电子设备 技术领域
本公开涉及显示技术领域，尤其涉及一种显示装置、支撑件、支撑件的制作方法以及电子设备。
背景技术
显示装置是能够显示文字、图像或视频等信息的装置。显示装置的示例包括液晶显示装置(LCD)、有机发光二极管显示装置(OLED)、等离子体显示装置等。近年来，柔性显示装置由于具有可弯曲、可折叠或可卷曲的特性，越来越受到人们的关注。柔性显示装置可以通过在柔性显示面板的底部贴合支撑结构以对柔性显示面板进行保护和支撑。通常支撑结构整体采用不锈钢材料或合金材料制作，重量较大，进而导致增加了显示装置的重量，用户体验不佳。
在本部分中公开的以上信息仅用于对本公开的发明构思的背景的理解，因此，以上信息可包含不构成现有技术的信息。
发明内容
为了解决上述问题的至少一个方面，本公开实施例提供了一种显示装置、支撑件、支撑件的制作方法以及电子设备。
在一个方面，提供一种显示装置，包括：
显示面板，包括弯折区和非弯折区；
支撑件，位于所述显示面板的背面，所述支撑件包括：
弯折部，被配置为可弯折的支撑所述弯折区，所述弯折部的至少一侧包括第一凹槽；
支撑部，被配置为通过所述第一凹槽与所述弯折部连接，且支撑所述非弯折区，其中，所述弯折部的材料与所述支撑部的材料密度不同。
根据一些示例性的实施例，所述弯折部包括N个开孔，所述N个开孔通过第一开孔工艺得到，使用所述第一开孔工艺对所述弯折部的材料加工所述N 个开孔的时间小于对所述支撑部的材料加工所述N个开孔的时间，N大于或等于1。
根据一些示例性的实施例，所述至少一侧沿平行于所述显示面板的方向延伸，所述支撑部包括：
第一凸起，所述第一凸起与所述第一凹槽相适配连接。
根据一些示例性的实施例，所述第一凹槽包括：
朝向所述显示面板的直角凹槽，所述第一凸起的形状与所述直角凹槽相吻合。
根据一些示例性的实施例，所述弯折部包括朝向所述显示面板的第一平面，所述支撑部包括朝向所述显示面板的第二平面，所述第一平面与所述第二平面共面。
根据一些示例性的实施例，所述弯折部还包括与所述第一平面相对的第三平面，所述支撑部还包括与所述第二平面相对的第四平面，所述第三平面与所述第四平面共面。
根据一些示例性的实施例，所述第一凸起与所述第一凹槽通过热压或粘接相适配连接。
根据一些示例性的实施例，所述第一凹槽的底部包括M个第二凹槽，其中每个第二凹槽被部分所述支撑部的材料填充，该部分所述支撑部的材料与所述第一凸起固定连接，M大于或等于1。
根据一些示例性的实施例：所述M个第二凹槽包括线槽和/或孔槽；和/或所述M个第二凹槽贯穿所述第一凹槽的底部。
根据一些示例性的实施例，所述每个第二凹槽被部分所述支撑部的材料填充包括：
该部分所述支撑部的材料被热压至所述每个第二凹槽；或
位于所述第一凸起上的M个第二凸起一一对应地嵌入所述M个第二凹槽内。
根据一些示例性的实施例，所述支撑部在背离所述显示面板的一侧包括第三凹槽，至少部分所述弯折部嵌入所述第三凹槽。
根据一些示例性的实施例，所述支撑部包括朝向所述显示面板的第五平 面，所述第五平面位于所述弯折部和所述显示面板之间。
根据一些示例性的实施例，所述至少一侧包括S个所述第一凹槽，其中每个第一凹槽被部分所述支撑部的材料填充，S大于或等于1。
根据一些示例性的实施例，所述每个第一凹槽被部分所述支撑部的材料填充包括：
该部分所述支撑部的材料被热压至所述每个第一凹槽；或
所述第三凹槽内的S个第三凸起一一对应地嵌入S个所述第一凹槽内。
根据一些示例性的实施例，所述第一凹槽包括铆接孔，所述支撑部被配置为通过所述第一凹槽与所述弯折部连接包括：
通过铆接工艺将所述支撑部与所述弯折部连接。
根据一些示例性的实施例，所述第一凹槽的底部包括至少一个铆接孔，包括：
通过铆接工艺将所述第一凸起与所述第一凹槽相适配连接。
根据一些示例性的实施例，若所述支撑部的材料为塑料，所述至少一侧包括沿平行于所述显示面板的方向延伸的L个第四凸起，任两个相邻第四凸起之间形成所述第一凹槽，L大于或等于2，其中：
至少部分所述塑料被配置为通过注塑工艺填充至每个所述第一凹槽内。
根据一些示例性的实施例，所述第一凹槽的槽底长度大于槽口长度。
根据一些示例性的实施例，所述弯折部的材料包括金属材料，所述支撑部的材料包括碳纤维预浸料或塑料。
根据一些示例性的实施例，若所述支撑部的材料为碳纤维预浸料，所述支撑部被配置为由K层碳纤维预浸料铺设而成，K为大于1的奇数。
根据一些示例性的实施例，所述K层碳纤维预浸料中任相邻的两层碳纤维预浸料之间的弹性模量不同。
根据一些示例性的实施例，所述支撑部包括：
第一支撑部，位于所述弯折部的第一侧，所述第一支撑部被配置为通过所述第一侧的第一凹槽与所述弯折部连接；
第二支撑部，位于所述弯折部的第二侧，所述第二侧与所述第一侧相对，所述第二支撑部被配置为通过所述第二侧的第一凹槽与所述弯折部连接。
根据一些示例性的实施例，所述弯折部的材料的密度大于所述支撑部的材料的密度。
根据一些示例性的实施例，所述弯折部的材料的弹性模量大于所述支撑部的材料的弹性模量。
在又一方面，提供一种支撑件，用于如上任一项所述的显示装置，所述显示装置包括显示面板，所述支撑件包括：
弯折部，被配置为可弯折的支撑所述显示面板的弯折区，所述弯折部的至少一侧包括第一凹槽；
支撑部，被配置为通过所述第一凹槽与所述弯折部连接，且支撑所述显示面板的非弯折区，其中，所述弯折部的材料与所述支撑部的材料密度不同。
在又一方面，提供一种支撑件的制作方法，所述支撑件用于如上任一项所述的显示装置，所述显示装置包括显示面板，所述方法包括：
提供第一材料形成在至少一侧具有第一凹槽的弯折部，所述弯折部被配置为可弯折的支撑所述显示面板的弯折区，所述弯折部的至少一侧包括第一凹槽；
提供第二材料形成支撑部，所述支撑部被配置为通过所述第一凹槽与所述弯折部连接，且支撑所述非弯折区，其中，所述弯折部的材料与所述支撑部的材料密度不同。
根据一些示例性的实施例，所述支撑部包括搭接处，所述方法包括通过所述第一凹槽将所述支撑部与所述弯折部连接：
将所述支撑部和所述弯折部置于热压模具中，其中，所述热压模具中对应于所述支撑部和所述弯折部的区域分别具有不同深度；
利用热压工艺将所述搭接处与所述第一凹槽连接。
在又一方面，提供一种电子设备，其中，所述电子设备包括上述的显示装置。
附图说明
通过下文中参照附图对本公开所作的描述，本公开的其它目的和优点将显而易见，并可帮助对本公开有全面的理解。
图1是根据本公开一些示例性实施例的显示装置的透视图；
图2是根据本公开一些示例性实施例的显示装置的平面图；
图3是根据本公开一些示例性实施例的显示装置沿图2中的线AA’截取的截面图；
图4是根据本公开一些示例性实施例的显示装置在图3中的部分I的平面放大图；
图5是根据本公开的一些示例性实施例的显示装置的显示面板的像素结构的截面图；
图6是根据本公开的一些示例性实施例的显示装置沿弯折区折叠后的状态下的截面图；
图7是根据本公开的另一些示例性实施例的显示装置沿弯折区折叠后的状态下的截面图；
图8是根据本公开的一些示例性实施例的支撑件的正面图；
图9是根据本公开的一些示例性实施例的支撑件在连接前的示意图；
图10是根据本公开的一些示例性实施例的图9中支撑件在连接后的示意图；
图11是根据本公开一些示例性实施例的显示装置在图8中的部分II的平面放大图；
图12是根据本公开一些示例性实施例的支撑件的制作方法的流程图；
图13是根据本公开另一些示例性实施例的支撑件的制作方法的流程图；
图14是根据本公开的一些示例性实施例的支撑件的背面图；
图15是根据本公开的一些示例性实施例的支撑件沿图14中的线BB’截取的截面图；
图16是根据本公开的一些示例性实施例的图14中弯折部的背面图；
图17(a)～图17(c)分别是根据本公开的一些示例性实施例的支撑件的截面示意图；
图18是根据本公开的另一些示例性实施例的支撑件的背面图；
图19是根据本公开的另一些示例性实施例的支撑件的背面图；
图20是根据本公开的另一些示例性实施例的图19中弯折部的背面图；
图21是根据本公开的一些示例性实施例的支撑部的示意图；
图22是根据本公开的另一些示例性实施例的支撑部的示意图；
图23是根据本公开的另一些示例性实施例的碳纤维铺层示意图。
需要注意的是，为了清晰起见，在用于描述本公开的实施例的附图中，层、结构或区域的尺寸可能被放大或缩小，即这些附图并非按照实际的比例绘制。
具体实施方式
在下面的描述中，出于解释的目的，阐述了许多具体细节以提供对各种示例性实施例的全面的理解。然而，明显的是，在不具有这些具体细节或者具有一个或多个等同布置的情况下，可以实施各种示例性实施例。在其它情况下，以框图形式示出了公知的结构和装置，以避免使各种示例性实施例不必要地模糊。此外，各种示例性实施例可以是不同的，但不必是排他的。例如，在不脱离发明构思的情况下，可以在另一示例性实施例中使用或实施示例性实施例的具体形状、配置和特性。
在附图中，为了清楚和/或描述的目的，可以放大元件的尺寸和相对尺寸。如此，各个元件的尺寸和相对尺寸不必限于图中所示的尺寸和相对尺寸。当可以不同地实施示例性实施例时，可以与描述的顺序不同地执行具体的工艺顺序。例如，可以基本上同时执行或者以与描述的顺序相反的顺序执行两个连续描述的工艺。此外，同样的附图标记表示同样的元件。
当元件被描述为“在”另一元件“上”、“连接到”另一元件或“结合到”另一元件时，元件可以直接在另一元件上、直接连接到另一元件或直接结合到另一元件，或者可以存在中间元件。然而，当元件被描述为“直接在”另一元件“上”、“直接连接到”另一元件或“直接结合到”另一元件时，不存在中间元件。用于描述元件之间的关系的其他术语和/或表述应当以类似的方式解释，例如，“在……之间”对“直接在……之间”、“相邻”对“直接相邻”或“在……上”对“直接在……上”等。此外，术语“连接”可指的是物理连接、电连接、通信连接和/或流体连接。此外，X轴、Y轴和Z轴不限于直角坐标系的三个轴，并且可以以更广泛的含义解释。例如，X轴、Y轴和Z轴可彼此垂直，或者可代表彼此不垂直的不同方向。出于本公开的目的，“X、 Y和Z中的至少一个”和“从由X、Y和Z构成的组中选择的至少一个”可以被解释为仅X、仅Y、仅Z、或者诸如XYZ、XYY、YZ和ZZ的X、Y和Z中的两个或更多个的任何组合。如文中所使用的，术语“和/或”包括所列相关项中的一个或多个的任何组合和所有组合。
应该理解的是，尽管在这里可使用术语第一、第二等来描述不同的元件，但是这些元件不应受这些术语的限制。这些术语仅是用来将一个元件与另一个元件区分开来。例如，在不脱离示例实施例的范围的情况下，第一元件可以被命名为第二元件，类似地，第二元件可以被命名为第一元件。
为了描述的目的，在文中可以使用诸如“在……之下”、“在……下方”、“在……下面”、“下”、“在……上方”、“上”、“在……之上”、“较高的”或“侧”(例如，如在“侧壁”中)等的空间相对术语，从而描述如图中所示的一个元件与另一(或另一些)元件的关系。除了图中描绘的方位之外，空间相对术语还意图包含设备在使用、操作和/或制造中的不同方位。例如，如果图中的设备被翻转，则被描述为“在”其它元件或特征“下方”或“之下”的元件将随后被定位为“在”其它元件或特征“上方”。因此，示例性术语“在……下方”可以包含上方和下方两种方位。此外，设备可以被另外定位(例如，旋转90度或者在其它方位处)，如此，相应地解释文中使用的空间相对描述语。
文中使用的术语是为了描述具体实施例的目的，而非意图是限制性的。如文中所使用的，除非上下文另外明确指出，否则单数形式“一个”、“一种”和“”也意图包括复数形式。而且，当在本说明书中使用术语“包括”时，术语说明存在所陈述的特征、整体、步骤、操作、元件、组件和/或它们的组，但不排除存在或添加一个或多个其它特征、其它整体、其它步骤、其它操作、其它元件、其它组件和/或它们的组。还注意的是，如文中所使用的，术语“基本上”、“约”和其它类似术语用作近似术语而非程度术语，如此，术语“基本上”、“约”和其它类似术语用于说明本领域普通技术人员会认识到的测量值、计算值和/或提供值的固有偏差。
除非另外限定，否则文中使用的所有术语(包括技术术语和科学术语)具有与本公开作为其一部分的领域中的普通技术人员所通常理解的含义相同的含义。
本领域技术人员应该理解，材料在弹性变形阶段，应力和应变成正比例关系(即符合胡克定律)，其比例系数可以称为弹性模量。“弹性模量”是描述材料弹性的一个物理量，是一个统称，表示方法可以是“杨氏模量”、“体积模量”等。
“弯曲强度”是指材料在弯曲负荷作用下破裂或达到规定弯矩时能承受的最大应力，此应力为弯曲时的最大正应力。它反映了材料抗弯曲的能力，用来衡量材料的弯曲性能。
“开孔工艺”是利用相关设备通过温度、化学反应、激光或压力等方式在待开孔部件上进行加工，最终形成孔状的方法与过程。
“热压”是将待连接部件放入热压模具后，以压力将模具中待连接部件固定于加热部，控制温度及时间，以达融化后硬化、冷却，再予以取出支撑件成品。
“铆接工艺”即是利用轴向力将零件铆钉孔内钉杆墩粗并形成钉头，使待连接部件相连接的方法与过程。
“注塑工艺”是指将熔融的原料通过注入、冷却、脱离等操作制作预期形状的支撑件的工艺过程。
“碳纤维预浸料”是将碳纤维丝束、树脂等经过涂膜、热压、冷却、覆膜、卷制等工艺进行加工制作而成。
下文中，将参照附图描述本公开的示例性实施例。
图1是根据本公开一些示例性实施例的显示装置的透视图。图2是根据本公开一些示例性实施例的显示装置的平面图。图3是根据本公开一些示例性实施例的显示装置沿图2中的线AA’截取的截面图。图4是根据本公开一些示例性实施例的显示装置在图3中的部分I的平面放大图。
参照图1和图2，显示装置100例如可适用于移动终端。移动终端的示例包括平板个人计算机(PC)、智能手机、个人数字助理(PDA)、便携式多媒体播放器、游戏机或腕表式电子装置等。然而，本公开的实施例并不意图限制显示装置100可适用的移动终端的类型。在一些示例性实施例中，显示装置100不仅可用于诸如电视机(TV)或外部广告牌等大型电子装置中，而且可用于诸如PC、笔记本式计算机、汽车导航装置或相机等中型或小型电子装置中。
显示装置100在平面图中可具有矩形形状。显示装置100可具有在第一方向x上延伸的两个短边和在第二方向y上延伸的两个长边。其中显示装置100的两个长边和两个短边相交的角可为直角或者可以是弧形。本公开的实施例不意图限制显示装置100的平面形状，例如，在其他实施例中，显示装置100在平面图中可具有圆形形状、多边形形状或其他形状。
显示装置100可以包括显示面板1和支撑件3。
在一些示例性实施例中，显示面板1可以是包括发光元件的显示面板。例如，显示面板1可以包括有机发光二极管(OLED)、量子点发光二极管(QLED)和/或基于无机材料的微LED(micro-LED)。为了方便描述，假设显示面板1包括OLED，并且将在后面更详细地描述显示面板1的元件。
参照图1至图4，显示装置100的显示面板1可包括衬底基板11、驱动层12、有机发光元件层13、封装层14、偏光片15和盖板16等元件。应该理解，显示面板1还可以包括其他膜层或元件，本公开的实施例并不对其进行穷举式的描述。
除非另有说明，否则本文中所使用的术语“上部”、“顶部”、“顶表面”和“向上”指的是显示面板1的显示侧，即，显示面板1的在Z轴方向上的一侧，并且本文中所使用的术语“下部”、“底部”、“底表面”、“背面”和“向下”指的是显示面板1的相对于显示侧的相反侧，即，显示面板1的在z轴方向的相反方向上的一侧。
衬底基板11提供显示面板1的底表面。衬底基板11可以是柔性基板，并且可包括具有相对优异的耐热性和耐久性的塑性材料，诸如，邻苯二甲酸聚乙烯醚、聚萘二甲酸乙二醇酯(PEN)、聚碳酸酯(PC)、聚芳酯、聚醚酰亚胺、聚醚砜(PES)或聚酰亚胺(PI)。为了方便描述，假设衬底基板11包括PI。
显示面板1包括弯折区A1和非弯折区A2。参照图2，显示面板1可以适用于全面屏(例如显示图像等信息的显示区域DA占比90％以上，仅为示例)，图1和图2中所示的弯折区A1和非弯折区A2皆可以为显示区域DA。本公开的实施例不必须限制显示面板1的屏占比例，例如，在其他实施例中，显示面板1可具有显示区域DA和不显示图像等信息的非显示区域NDA。在一些示例性实施例中，非显示区域NDA可设置为与显示区域DA相邻，例如， 包围显示区域DA。
在平面图中，弯折区A1可沿着第一方向x延伸贯穿非显示区域NDA。在一些示例性实施例中，弯折区A1还可沿着第二方向y延伸贯穿非显示区域NDA(图中未示出)。
显示面板1能够沿着位于弯折区A1中的弯曲轴线BX1弯曲或折叠，弯曲轴线BX1沿着第一方向x在弯折区A1中延伸。借助弯折区A1，显示面板1可以被弯曲或折叠。
需要说明的是，在本文中，除非另有说明，“弯曲轴线”指的是一条假想的线，而不是指代一条实体的轴线或实体结构，一般地，具有弯曲轴线的部件可以围绕该弯曲轴线弯曲或折叠。
在本公开的实施例中，显示面板1是柔性显示面板。也就是说，除了弯折区A1中的部分可以弯曲或折叠之外，显示面板1的其他部分也可以是柔性的，即可被弯曲或折叠，从而实现柔性显示装置。弯折区A1是柔性显示面板能够实现可弯曲、可折叠或可卷曲功能的区域，在其下方设置有支撑件3的弯折部31。非弯折区A2为弯折区A1之外的其他区域，非弯折区A2中的柔性显示面板例如也是可弯曲、可折叠或可卷曲的，在其下方设置有支撑件3的支撑部32。
参照图1～图3，支撑件3可设置在显示面板1下方。在一些示例性实施例中，支撑件3可结合到显示面板1的底表面(背面)。支撑件3可支撑柔性的显示面板1，并且可保护显示面板1的底表面。
支撑件3包括弯折部31和支撑部32。弯折部31可以与显示面板1的弯折区A1重叠(例如重合)，即，显示面板1的弯折区A1在支撑件3上的正投影落入弯折部31内。支撑部32可以与显示面板1的非弯折区A1重叠(例如重合)，即，显示面板1的至少部分非弯折区A2在支撑件3上的正投影落入支撑部32内。
尤其说明的是，弯折部31可以部分与显示面板1的弯折区A1重叠而非完全重合。例如弯折部31的区域面积大于弯折区A1在支撑件3上的正投影，换言之，至少部分非弯折区A2在支撑件3上的正投影落入弯折部上。
图5是根据本公开的一些示例性实施例的显示装置的显示面板的像素结构的截面图。
示例性地，图5示出驱动层12的驱动晶体管Qd。驱动晶体管Qd包括有源层121、栅电极123、源电极125以及漏电极127。
有源层121可设置在衬底基板11上。驱动层12还可包括设置在有源层121和栅电极123之间的第一绝缘层122。第一绝缘层122可将有源层121和栅电极123彼此绝缘。驱动层12还可包括设置在栅电极123和源电极125之间以及在栅电极123和漏电极127之间的栅绝缘层124，以及设置在栅绝缘层124远离衬底基板11一侧的第二绝缘层126。源电极125和漏电极127可分别经由形成在第一绝缘层122、栅绝缘层124和第二绝缘层126三者中的接触孔CH1和CH2电连接到有源层121。
驱动层12还可包括设置在源电极125和漏电极127上的钝化膜128。
虽然未在图5中具体示出，但是开关晶体管可具有与驱动晶体管Qd基本相同的结构或者与驱动晶体管Qd类似的结构，但是示例性实施例不限于此。即，可替代地，开关晶体管和驱动晶体管Qd可具有不同的结构。例如，开关晶体管的有源层和驱动晶体管Qd的有源层121可置于不同的层上。
在一些示例性实施例中，驱动层12不仅可设置在显示区域DA中，还可设置在非显示区域NDA中。例如，驱动层12还可以包括电连接至驱动集成电路(IC)的多条走线，这些走线可以位于非显示区域NDA中。
应该理解，驱动层12还可以包括电容Cst，参照图5，电容Cst包括相对且间隔设置的第一极板C1和第二极板C2。例如，第一极板C1可以与栅电极123位于同一层，第二极板C2可以位于栅绝缘层124远离衬底基板11的一侧。例如，第一极板C1和第二极板C2均可以由与栅电极123相同的材料构成。
有机发光元件层13可包括作为发射元件的有机发光元件。有机发光元件可以是顶发射型(top emission-type)，并且可在向上的方向、即在z轴方向上发光。
参照图5，有机发光元件可包括第一电极131、有机层132以及第二电极133。
第一电极131设置在钝化膜128上。第一电极131经由形成在钝化膜128中的接触孔CH3电连接到漏电极127。第一电极131可以是像素电极或阳极。
有机层132可包括由低分子有机材料或聚合物有机材料形成的有机发射层。有机发射层可基于第一电极131和第二电极133之间的电压差发光。虽 然未示出，但是有机层132还可包括空穴传输层(HTL)、空穴注入层(HIL)、电子传输层(ETL)以及电子注入层(EIL)中的至少一个。因此，来自第一电极131的空穴和来自第二电极133的电子可注入有机层132中。在有机发射层中，空穴和电子可结合以产生激子，随着激子从激发态跃迁至基态，可发射光。
第二电极133可设置在有机层132上。第二电极133可以是公共电极或阴极。
有机发光元件层13还可包括设置在钝化膜128上的像素限定层PDL。
在本公开的示例性实施例中，有机发光元件层13可以仅设置在显示面板1的显示区域DA中，不设置在非显示区域NDA中。
封装层14可设置在有机发光元件层13上。封装层14可保护有机发光元件层13免受外部湿气和空气的影响。
在一些示例性实施例中，封装层14可形成为薄膜封装层，并且可包括至少一个有机膜和至少一个无机膜。例如，封装层14可包括设置在第二电极133上的第一无机膜141、设置在第一无机膜141上的有机膜145以及设置在有机膜145上的第二无机膜143。在这种情况下，可有效防止湿气和空气等从显示面板1的外部渗透至显示面板1的内部。
参照图3至图5，偏光片15设置在封装层14远离衬底基板11的一侧，以偏振有机发光元件发出的光。应该理解，根据本公开的实施例的显示面板还可以包括其他类型的光学膜层，而不局限于偏光片。
作为一个示例，偏光片15可以仅设置在显示面板1的显示区域DA中，不设置在非显示区域NDA中。
盖板16通过光学粘合剂层贴合在偏光片15上。例如，盖板16可以覆盖显示面板1的整个上表面，即覆盖显示面板1的显示区域DA和非显示区域NDA。
图6是根据本公开的一些示例性实施例的显示装置沿弯折区折叠后的状态下的截面图。
参照图6，显示面板1可在弯折区A1中沿着在第一方向x上延伸的弯曲轴线BX1(参见图1)向外折叠或弯曲。即向外折叠或弯曲后，显示面板1可以位于外部供使用者观看，最终得到的可观看的屏幕尺寸可以不同，满足 客户对不同尺寸产品使用的需求的同时，还可以降低产品的收纳尺寸，便于收纳携带，还可以直接开机即可看到显示面板1的相关画面，避免频繁折叠产品。
图7是根据本公开的另一些示例性实施例的显示装置沿弯折区折叠后的状态下的截面图。
参照图7，显示面板1可在弯折区A1中沿着在第一方向x上延伸的弯曲轴线BX1(参见图1)向内折叠或弯曲。即向内折叠或弯曲后，显示面板1可以位于内部，同样可以降低产品的收纳尺寸，便于收纳携带，还可以在折叠状态保护显示面板1，在需要观看使用时再打开实现大尺寸显示即可。
图8是根据本公开的一些示例性实施例的支撑件的正面图。图9是根据本公开的一些示例性实施例的支撑件在连接前的示意图。图10是根据本公开的一些示例性实施例的图9中支撑件在连接后的示意图。图11是根据本公开一些示例性实施例的显示装置在图8中的部分II的平面放大图。
参照图1～图11，显示面板1包括弯折区A1和非弯折区A2。支撑件3位于显示面板1的背面，所述支撑件3包括弯折部31和支撑部32。弯折部31被配置为可弯折的支撑弯折区A1，弯折部31的至少一侧包括第一凹槽311。支撑部32被配置为通过第一凹槽311与弯折部31连接，且支撑非弯折区A2，其中，弯折部31的材料与支撑部32的材料密度不同。
相关技术中常见支撑件材料整体为不锈钢，密度约为7.93g/cm-3，密度较大，若加工大尺寸的支撑件，则重量会很沉。
本公开实施例的支撑件通过令弯折部的材料与支撑部的材料密度不同，可以减少整体采用同一种金属材料而导致的重量问题，达到减重的目的。并且令支撑部通过第一凹槽与弯折部连接，可以令两者更加牢固的连接，提高支撑件的耐用性。
示例性地，弯折部31的材料可以包括金属材料，例如不锈钢、钛合金、铜合金等金属合金材料等。支撑部32的材料可以包括碳纤维预浸料或塑料等。
在一些实施例中，弯折部31包括N个开孔312，N个开孔312通过第一开孔工艺得到，使用第一开孔工艺对弯折部31的材料加工N个开孔312的时间小于对支撑部32的材料加工N个开孔312的时间，N大于或等于1。
示例性地，参照图11，每个开孔312贯穿弯折部31，呈细长椭圆形。每 相邻两列的开孔312交错设置，间隔一列的两列开孔312之间对齐设置。本公开实施例无意将N个开孔312限制在如图11的示意图方案，例如开孔312的形状、开孔312之间的排列或者开孔312深度可以灵活设置，例如开孔312可以为菱形、矩形、圆形或多边形等形状，开孔312之间的排列可以按照特定的图案来实现。
如上描述相关技术中支撑件3整体采用不锈钢导致显示装置的重量较大。而碳纤维、塑胶等材料密度较低，若用于支撑件3设计，则可大大降低重量。但如碳纤维材料的图案加工只能使用激光开孔工艺，此种方法效率非常低，尤其将支撑件3用于大尺寸的显示面板1时，不适合用于量产。例如激光开孔工艺只能一个个孔打，效率很低。一片8寸的产品，需20-30分钟，若支撑件3适配于更大尺寸的折叠显示面板1，可能需要一小时以上，不具备量产性。
示例性地，第一开孔工艺包括蚀刻工艺，例如弯折部31的材料包括金属材料，支撑部32的材料包括碳纤维预浸料或塑料。则蚀刻工艺可以快速在弯折部31获得N个开孔312，而可能蚀刻工艺用在碳纤维预浸料上无法获得开孔312，该情况下亦属于使用第一开孔工艺对弯折部31的材料加工N个开孔312的时间小于对支撑部32的材料加工N个开孔312的时间。
一方面，在弯折部31设置N个开孔312，可以进一步减轻支撑件3的重量，还可以减小弯折部31的等效模量，便于弯折。另一方面，通过将不同密度的材料复合，将开孔312加工速度快的材料作为弯折部31的材料，又可提高加工效率。
尤其说明的是，第一开孔工艺还可以包括其他打孔工艺，在实现减重目的以及提高加工效率的前提下，不仅限于如上蚀刻工艺，也不仅限于弯折部31的材料为金属，支撑部32的材料为碳纤维预浸料或塑料。
在一些实施例中，弯折部31的至少一侧沿平行于显示面板1的方向延伸，所述支撑部32包括第一凸起321，第一凸起321与第一凹槽311相适配连接。
参照图9和图10，xy平面平行于显示面板1，则第一方向x和第二方向y皆平行于显示面板1。该实施例中，弯折部31的至少一侧可以包括沿第二方向y延伸的一侧或两侧。
应知的是，虽然图9和图10示出了弯折部31具有相对的两个第一凹槽311，但是也可以仅在沿第二方向y的某一侧设置第一凹槽311。例如仅在图 9所示的左侧设置第一凹槽311，而弯折部31与右侧支撑部3232为一体成型的结构，且材料相同，例如皆为金属材料。
在一些实施例中，第一凹槽311包括朝向显示面板1的直角凹槽，第一凸起321的形状与直角凹槽相吻合。
参照图9和图10，以右侧第一凹槽311为例，其呈“L”形，第一凸起321的形状为长方体，且第一凸起321下方也具有呈第一凹槽311顺时针旋转180度的形状的凹槽，因此可以在连接后如图10所示。在一些实施例中，左右两侧的第一凹槽311可以相同，例如形状、深度和宽度等参数皆相同。在另一些实施例中，左右两侧的第一凹槽311可以不同，例如形状、深度和宽度等至少一个参数有所区别。而第一凸起321的形状则根据所适配连接的第一凹槽311进行适应性调整。
在另一些实施例中，第一凹槽311也可以背离显示面板1，例如图10所示的基础上绕y轴向下翻转180度，当前弯折部31的下端面在翻转后朝向显示面板1，使得与显示面板1的接触面积更大，减小模印。
在另一些实施例中，第一凹槽311可以采用直角凹槽之外的其他形式，例如图9所示的第一凹槽311底部隆起，而相应的第一凸起321的底部凹陷，两者可以相互卡合，能够对x或y方向的力起到抵挡作用。
在一些实施例中，参照图10，弯折部31包括朝向显示面板1的第一平面313，支撑部32包括朝向显示面板1的第二平面322，第一平面313与第二平面322共面。
示例性地，在第一凸起321和第一凹槽311连接后，第一平面313与第二平面322处以同一平面，该情况下共面是指平面度在允许的范围内，例如在2mm以下。从而能够令支撑件3与显示面板1更好的贴合，具有更加的支撑性能。
参照图10，在第一平面313与第二平面322处以同一平面的情况下，弯折部31的厚度可以小于支撑件3的厚度，也可以与支撑件3的厚度相等。
在一些实施例中，参照图9和图10，弯折部31还包括与第一平面313相对的第三平面314，支撑部32还包括与第二平面322相对的第四平面323，第三平面314与第四平面323共面。
示例性地，在第一凸起321和第一凹槽311连接后，第三平面314与第 四平面323处于同一平面，该情况下共面是指平面度在允许的范围内，例如在2mm以下。从而令支撑件3整体的厚度一致，即弯折部31的厚度与支撑件3的厚度相等，避免了支撑件3中间厚度低于两侧时使中间下凹而无支撑，导致模印较深的问题。
在一些实施例中，第一凸起321与第一凹槽311通过热压或粘接相适配连接。下面结合图12和图13进一步描述支撑件3的制作流程。
图12是根据本公开一些示例性实施例的支撑件3的制作方法的流程图。图13是根据本公开另一些示例性实施例的支撑件3的制作方法的流程图。
在操作S1210，提供第一材料形成在至少一侧具有第一凹槽311的弯折部31，弯折部31被配置为可弯折的支撑显示面板1的弯折区A1。
示例性地，弯折部31可以采用金属件，例如钛合金和不锈钢等，加工N个开孔312形成镂空图案区，镂空图案区加工可采用蚀刻的方法，加上掩模版进行化学蚀刻。
在操作S 1220，提供第二材料形成支撑部32，支撑部32被配置为通过第一凹槽311与弯折部31连接，且支撑非弯折区A2，其中，弯折部31的材料与支撑部32的材料密度不同。
示例性地，支撑部32可以采用碳纤维预浸料或塑料。
结合操作S1210和操作S1220举例说明，首先，先将金属件加工完成，采用蚀刻方法，中间Pattern区同步蚀刻完成。接着，进行热压模具制作，由于使用两种材料，金属和碳纤维预浸料在高温高压下热膨胀率不同，模具无法像处理相同材料一样做成两面平整的钢片，需根据实际复合方案图纸，对应不同材料位置做凹凸设计，以匹配不同材料的热膨胀率，达到热压后表面平整的效果，使复合后板材平面度做到2mm以下。接着，对碳纤维预浸料根据支撑件3尺寸进行相应裁剪。接着，清理模具，需将模具内部的杂质、灰尘等进行清理，确保模具表面干净整洁，以防支撑件3表面存在异物等。然后，涂抹离型剂，在模具清理完后，上面涂抹脱模剂，在支撑件3成型后，完成对支撑件3的脱模，避免支撑件3跟模具粘接的情况。然后，铺层碳纤维预浸料形成支撑部32雏形。
接着执行操作S1310和操作S1320，如下。
在操作S1310，将支撑部32和弯折部31置于热压模具中，其中，热压模 具中对应于支撑部32和弯折部31的区域分别具有不同深度，支撑部32包括搭接处。
其中，搭接处即为图9和图10所示的第一凸起321。深度是在z轴方向而言，可以在支撑件3的底部和顶部对应的模具部分皆凹凸设计。
具体而言，进行模具装填，例如先将金属件置于模具中间，然后将碳纤维预浸料按照铺层先后进行填装，确保铺层的平整度。接着进行合模，即将模具通过螺丝固定，确保成型产品尺寸。
在操作S1320，利用热压工艺将搭接处与第一凹槽311连接。
具体而言，进行固化成型，将模具送入到热压机上面，进行压力以及温度的控制，一定时间后，冷却模具。最后，进行脱模，去除模具，将支撑件3取出。
上文描述了将金属件加工完成后采用蚀刻方法令中间Pattern区同步蚀刻完成。在另一些实施例中，首先将金属件外形蚀刻出来，此时先不蚀刻中间pattern，然后将金属件与碳纤维预浸料复合，热压成型得到整体的外形(热压模具同样是凹凸设计)。可以令热压后得到的尺寸大于最终产品，此目的是为了后续产品尺寸的精确切割。然后，将产品的碳纤维部分进行包裹，金属件部分进行pattern蚀刻，以得到中间图案。最后，将碳纤维部分过大的尺寸进行激光切割，以得到最终产品尺寸。该实施例中热压成型后再进行pattern蚀刻的优点在于，pattern可以保持良好的尺寸外形，避免了在热压时变形及树脂流入开孔。
在一些实施例中，为了增加粘接力，可以在模具热压成型前，在搭接处与第一凹槽311之间涂敷一层胶水，且第一凹槽311上表面做粗糙处理，以增加粘接力。例如先将第一凹槽311上表面打磨处理，放置模具中，打磨处涂敷胶水，然后将碳纤维预浸料进行铺层，最后进行模具热压得到成型支撑件3。
在另一些实施例中，可以单独使用粘接的方式，例如在执行操作S1210和操作S1220得到弯折部31和支撑部32之后，在搭接处和第一凹槽311之间的拼接处涂胶，进行粘接。
图14是根据本公开的一些示例性实施例的支撑件3的背面图。图15是根据本公开的一些示例性实施例的支撑件3沿图14中的线BB’截取的截面 图。图16是根据本公开的一些示例性实施例的图14中弯折部31的背面图。其中，为了清楚示意本实施例的结构，图14中的支撑部32进行了点状图案填充。
在一些实施例中，参照图14～图16，第一凹槽311的底部包括M个第二凹槽315，其中每个第二凹槽315被部分支撑部32的材料填充，该部分支撑部32的材料与第一凸起321固定连接，M大于或等于1。
根据本公开的实施例，每个第二凹槽315被部分支撑部32的材料填充增加了弯折部31和支撑部32的结合力，由于支撑部32的部分材料伸入甚至贯穿弯折部31的第二凹槽315，至少起到抵抗x或y方向的力的作用，在多次弯折的过程中令弯折部31和支撑部32不易脱离。
在一些实施例中，M个第二凹槽315包括线槽和/或孔槽。和/或M个第二凹槽315贯穿第一凹槽311的底部。
示例性地，孔槽可以包括圆形、矩形或其他多边形形状的凹陷部。线槽包括呈缝隙或矩形形状的凹陷部，线槽可以由多个连通的孔槽形成。第二凹槽315可以是通槽或盲槽。通槽贯穿第一凹槽311的底部。而盲槽的深度小于第一凹槽311底部的厚度，即未贯穿第一凹槽311的底部。
在一些实施例中，每个第二凹槽315被部分支撑部32的材料填充包括：该部分支撑部32的材料被热压至每个第二凹槽315。
示例性地，参照图14～图16，以及操作S1210和操作S1220，操作S1310和操作S1320。在制作支撑件3时，金属件放入模具后，铺层碳纤维预浸料时，除了两侧大片的碳纤维预浸料，第二凹槽315区域(如第二凹槽315上方和/或内部)也铺层小片碳纤维预浸料。在热压过程中，第二凹槽315区域的树脂融化，填充至第二凹槽315内，且第一凸起321与第一凹槽311的其他部分因为热压而被连接。另外，上述小片碳纤维预浸料在热压前被铺设在第一凸起321区域的下方，在热压后其与第一凸起321固定连接。
在另一些实施例中，每个第二凹槽315被部分支撑部32的材料填充包括：位于第一凸起321上的M个第二凸起一一对应地嵌入M个第二凹槽315内。
示例性地，先在第一凸起321的下方固定连接有M个第二凸起。涂抹胶水后，将每个第二凸起嵌入对应的第二凹槽315。或者，将每个第二凸起嵌入对应的第二凹槽315后进行热压成型。
参照图15，该实施例的弯折部31的厚度可以小于支撑件3的厚度，也可以与支撑件3的厚度相等。
图17(a)～图17(c)分别是根据本公开的一些示例性实施例的支撑件3的截面示意图。
在一些实施例中，支撑部32在背离显示面板1的一侧包括第三凹槽，至少部分弯折部31嵌入第三凹槽。参照图17(a)～图17(c)，第三凹槽为支撑部32下方被弯折部31填充的凹陷部。
在一些实施例中，支撑部32包括朝向显示面板1的第五平面324，第五平面324位于弯折部31和显示面板1之间。参照图17(a)～图17(c)，支撑件3朝向显示面板1的表层为碳纤维预浸料，下面嵌入弯折部31。此种方式可以增加表面平整度，减轻模印。
在一些实施例中，弯折部31的至少一侧包括S个第一凹槽311，其中每个第一凹槽311被部分支撑部32的材料填充，S大于或等于1。
在一些实施例中，每个第一凹槽311被部分支撑部32的材料填充包括：该部分支撑部32的材料被热压至每个第一凹槽311。或第三凹槽内的S个第三凸起一一对应地嵌入S个第一凹槽311内。
参照图17(a)，第一凹槽311可以为直角凹槽，该直角凹槽可以是贯穿第一方向x，在单侧仅有一个直角凹槽。或者该直角凹槽可以是多个，沿第一方向x间隔排列。另外，在直角凹槽底部可以包括一个或多个第二凹槽315。每个第一凹槽311和每个第二凹槽315皆被部分支撑部32的材料填充，该实施例的填充可以是被支撑部32上预先成型的凸起嵌入，也可以是如上述铺层碳纤维预浸料被热压后树脂融化而填充。
参照图17(b)，除不具有第二凹槽315外，其余与图17(a)一致，在此不做赘述。
参照图17(c)，该实施例的第一凹槽311为沿第三方向z形成的凹陷部，其可以为通槽或盲槽。弯折部31的上表面与第三凹槽连接，而第一凹槽311被部分支撑部32的材料填充，例如被S个第三凸起嵌入，或如上述铺层碳纤维预浸料被热压后树脂融化而填充。对于xyz各方向的力皆有抵抗作用。
示例性地，参照图17(a)～图17(c)，在制作过程中，可以先将弯折部31放入模具，在逐层铺设碳纤维预浸料，该实施例要在弯折部31上方整体铺 设一层或多层碳纤维预浸料以形成第五平面324。第五平面324与第二平面322的位置相同，参照图10或图15的实施例，第二平面322包括分隔开的两个部分，而第五平面324为一个整体。
参照图17(a)～图17(c)，该实施例的弯折部31的第三平面314可以与支撑部32的第四平面323共面，也可以相对于第四平面323向内凹陷。
图18是根据本公开的另一些示例性实施例的支撑件3的背面图。沿图18中的线CC’截取的截面图可以参照图15、图17(a)或图17(c)。
在一些实施例中，如图17(c)所示的弯折部31，第一凹槽311包括铆接孔316，支撑部32被配置为通过第一凹槽311与弯折部31连接包括：通过铆接工艺将支撑部32与弯折部31连接。
在一些实施例中，如图15、图17(a)所示的弯折部31，第一凹槽311的底部包括至少一个铆接孔316，包括：通过铆接工艺将第一凸起321与第一凹槽311相适配连接。
根据本公开的实施例，在x或y方向对支撑部32与弯折部31施加让两者脱离的外力时，可以通过铆钉有效阻挡。
图19是根据本公开的另一些示例性实施例的支撑件3的背面图。图20是根据本公开的另一些示例性实施例的图19中弯折部31的背面图。
在一些实施例中，若支撑部32的材料为塑料，至少一侧包括沿平行于显示面板1的方向延伸的L个第四凸起317，任两个相邻第四凸起317之间形成第一凹槽311，L大于或等于2，其中：至少部分塑料被配置为通过注塑工艺填充至每个第一凹槽311内。
示例性地，若弯折部31为金属件，采用注塑工艺的方式是先将金属件加工好，预先固定在模具中适当的位置，然后再注入塑料成型，开模后金属件被冷却固化的塑料包紧埋在制品内。塑胶材料可选择尼龙玻纤、PC玻纤和PBT等材料。
在一些实施例中，第一凹槽311的沿垂直于第四凸起延伸方向的槽底长度大于槽口长度。例如第四凸起317是如图19和图20所示的正梯形，则第一凹槽311为倒梯形。又例如第四凸起317为“T”字形，“T”的横线朝外，则第一凹槽311为由相邻的两个“T”字形组成具有缺口(即槽口)的矩形。此方案槽底长度大于槽口长度的设计，增加了两材料间的结合力。
参照图19和图20，弯折部31的第一平面313可以与支撑部32的第二平面322共面(如图10和图15)，弯折部31的上方也可以为支撑部32的第五平面324(如图17(a)～图17(c))。该实施例的弯折部31的第三平面314可以与支撑部32的第四平面323共面，也可以相对于第四平面323向内凹陷。
图21是根据本公开的一些示例性实施例的支撑部的示意图。图22是根据本公开的另一些示例性实施例的支撑部的示意图。图23是根据本公开的另一些示例性实施例的碳纤维铺层示意图。
在一些实施例中，若支撑部32的材料为碳纤维预浸料，支撑部32被配置为由K层碳纤维预浸料铺设而成，K为大于1的奇数。
图21示出了三层碳纤维预浸料得到的支撑部32的示意图，其中第一凸起321的厚度为1.5层的碳纤维预浸料。图22示出了五层碳纤维预浸料得到的支撑部32的示意图，其中第一凸起321的厚度为2.5层的碳纤维预浸料。尤其说明的是，第一凸起321的厚度仅为示例，可以灵活设置。
示例性地，该实施例支撑部的结构是相邻层的纤维方向互相垂直，且整体符合对称原则，因此它的总层数是奇数。如图23所示，各层纤维方向之间角度交错排列，按照0°/90°依次铺层。由于碳纤维为各向异性材料，沿着纤维方向才有力学性能，因此将不同方向的碳纤预浸料铺层在一起，增加其在其他方向的力学性能。在另一些实施例中，还可以按照+45°/-45°的方式依次铺层。
在一些实施例中，任相邻的两层碳纤维预浸料之间的弹性模量可以相同，即碳纤维丝采用相同的型号。以图21所示举例，三层皆使用T700型号的碳纤维丝铺设，则整体弹性模量大约在50-60Gpa。
在另一些实施例中，K层碳纤维预浸料中任相邻的两层碳纤维预浸料之间的弹性模量不同。再以图21所示举例，若三层交错使用T700/M40/T700的碳纤维丝铺设，则整体模量大约在70-150Gpa，可以增加弯折性及支撑件3刚度。
在一些实施例中，参照图1～图16和图18～图23，支撑部32包括：第一支撑部32，位于弯折部31的第一侧，第一支撑部32被配置为通过第一侧的第一凹槽311与弯折部31连接。第二支撑部32，位于弯折部31的第二侧，第二侧与第一侧相对，第二支撑部32被配置为通过第二侧的第一凹槽311与 弯折部31连接。
在一些实施例中，参照图1～图23，弯折部31的材料的密度大于支撑部32的材料的密度。如上文描述的弯折部31的材料采用金属材料，支撑部32的材料采用碳纤维预浸料或塑料。
在一些实施例中，参照图1～图23，弯折部31的材料的弹性模量大于支撑部32的材料的弹性模量。例如在弯折部31的材料采用金属材料时，支撑部32的材料采用碳纤维预浸料，则金属材料的弹性模量大于碳纤维预浸料的弹性模量。举例而言，例如不锈钢的弹性模量在200GPa左右，而上述三层交错使用T700/M40/T700的碳纤维丝铺设，则整体模量大约在70-150Gpa，因此不锈钢的弹性模量大于支撑部整体或单层碳纤维预浸料的弹性模量。
在本公开的另一些实施例中，还提供一种电子设备。电子设备可以是包括显示功能的设备，即包括上述显示装置的设备。例如，电子设备可以是智能电话、移动电话、视频电话、电子书阅读器、台式电脑(PC)、膝上型PC、上网本PC、个人数字助理(PDA)、便携式多媒体播放器(PMP)、数字音频播放器、移动医疗设备、相机、可穿戴设备(例如头戴式设备、电子服饰、电子手环、电子项链、电子配饰、电子纹身、或智能手表)等。
根据本公开实施例的电子设备可以是包括显示功能的智能家用电器。例如，智能家用电器可以是电视、数字视频盘(DVD)播放器、音响、冰箱、空调、吸尘器、烤箱、微波炉、洗衣机、烘干机、空气净化器、机顶盒、电视(TV)盒、游戏机、电子词典、电子钥匙、摄像录像机、电子相框等。
根据本公开实施例的电子设备可以是医疗设备(例如，磁共振血管成像(MRA)设备、磁共振成像(MRI)设备、断层扫描(CT)设备、成像设备、或超声设备)、导航设备、全球定位系统(GPS)接收机、事件数据记录器(EDR)、飞行数据记录器(FDR)、汽车信息娱乐设备、航海电子设备(例如，航海导航设备、陀螺仪或罗盘)、航空电子设备、安全设备、工业或消费机器人、自动提款机(ATM)、销售点(POS)等。
根据本公开实施例的电子设备可以是包括显示功能的家具、建筑物/结构的一部分、电子公告板、电子签名接收设备、投影仪、多种测量设备(例如，水表、电表、气表或电磁波测量设备)等。根据一些实施例的电子设备可以是前述设备的任意组合。此外，根据各种实施例的电子设备可以是柔性设备。 此外，本领域技术人员应清楚，根据本公开的各种实施例的电子设备不限于上述设备。
虽然根据本公开的总体发明构思的一些实施例已被图示和说明，本领域普通技术人员将理解，在不背离本公开的总体发明构思的原则和精神的情况下，可对这些实施例做出改变，本公开的范围以权利要求和它们的等同物限定。

Claims (28)

  1. 一种显示装置，包括：
    显示面板，包括弯折区和非弯折区；
    支撑件，位于所述显示面板的背面，所述支撑件包括：
    弯折部，被配置为可弯折的支撑所述弯折区，所述弯折部的至少一侧包括第一凹槽；
    支撑部，被配置为通过所述第一凹槽与所述弯折部连接，且支撑所述非弯折区，其中，所述弯折部的材料与所述支撑部的材料密度不同。
  2. 根据权利要求1所述的显示装置，其中，所述弯折部包括N个开孔，所述N个开孔通过第一开孔工艺得到，使用所述第一开孔工艺对所述弯折部的材料加工所述N个开孔的时间小于对所述支撑部的材料加工所述N个开孔的时间，N大于或等于1。
  3. 根据权利要求1所述的显示装置，其中，所述至少一侧沿平行于所述显示面板的方向延伸，所述支撑部包括：
    第一凸起，所述第一凸起与所述第一凹槽相适配连接。
  4. 根据权利要求3所述的显示装置，其中，所述第一凹槽包括：
    朝向所述显示面板的直角凹槽，所述第一凸起的形状与所述直角凹槽相吻合。
  5. 根据权利要求4所述的显示装置，其中，所述弯折部包括朝向所述显示面板的第一平面，所述支撑部包括朝向所述显示面板的第二平面，所述第一平面与所述第二平面共面。
  6. 根据权利要求5所述的显示装置，其中，所述弯折部还包括与所述第一平面相对的第三平面，所述支撑部还包括与所述第二平面相对的第四平面，所述第三平面与所述第四平面共面。
  7. 根据权利要求3所述的显示装置，其中，所述第一凸起与所述第一凹槽通过热压或粘接相适配连接。
  8. 根据权利要求3所述的显示装置，其中，所述第一凹槽的底部包括M个第二凹槽，其中每个第二凹槽被部分所述支撑部的材料填 充，该部分所述支撑部的材料与所述第一凸起固定连接，M大于或等于1。
  9. 根据权利要求8所述的显示装置，其中：
    所述M个第二凹槽包括线槽和/或孔槽；和/或
    所述M个第二凹槽贯穿所述第一凹槽的底部。
  10. 根据权利要求8所述的显示装置，其中，所述每个第二凹槽被部分所述支撑部的材料填充包括：
    该部分所述支撑部的材料被热压至所述每个第二凹槽；或
    位于所述第一凸起上的M个第二凸起一一对应地嵌入所述M个第二凹槽内。
  11. 根据权利要求1所述的显示装置，其中，所述支撑部在背离所述显示面板的一侧包括第三凹槽，至少部分所述弯折部嵌入所述第三凹槽。
  12. 根据权利要求11所述的显示装置，其中，所述支撑部包括朝向所述显示面板的第五平面，所述第五平面位于所述弯折部和所述显示面板之间。
  13. 根据权利要求11所述的显示装置，其中，所述至少一侧包括S个所述第一凹槽，其中每个第一凹槽被部分所述支撑部的材料填充，S大于或等于1。
  14. 根据权利要求13所述的显示装置，其中，所述每个第一凹槽被部分所述支撑部的材料填充包括：
    该部分所述支撑部的材料被热压至所述每个第一凹槽；或
    所述第三凹槽内的S个第三凸起一一对应地嵌入S个所述第一凹槽内。
  15. 根据权利要求1所述的显示装置，其中，所述第一凹槽包括铆接孔，所述支撑部被配置为通过所述第一凹槽与所述弯折部连接包括：
    通过铆接工艺将所述支撑部与所述弯折部连接。
  16. 根据权利要求3所述的显示装置，其中，所述第一凹槽的底部包括至少一个铆接孔，包括：
    通过铆接工艺将所述第一凸起与所述第一凹槽相适配连接。
  17. 根据权利要求1所述的显示装置，其中，若所述支撑部的材料为塑料，所述至少一侧包括沿平行于所述显示面板的方向延伸的L个第四凸起，任两个相邻第四凸起之间形成所述第一凹槽，L大于或等于2，其中：
    至少部分所述塑料被配置为通过注塑工艺填充至每个所述第一凹槽内。
  18. 根据权利要求17所述的显示装置，其中，所述第一凹槽的槽底长度大于槽口长度。
  19. 根据权利要求1～16任一项所述的显示装置，其中，所述弯折部的材料包括金属材料，所述支撑部的材料包括碳纤维预浸料或塑料。
  20. 根据权利要求19所述的显示装置，其中，若所述支撑部的材料为碳纤维预浸料，所述支撑部被配置为由K层碳纤维预浸料铺设而成，K为大于1的奇数。
  21. 根据权利要求20所述的显示装置，其中，所述K层碳纤维预浸料中任相邻的两层碳纤维预浸料之间的弹性模量不同。
  22. 根据权利要求1～18任一项所述的显示装置，其中，所述支撑部包括：
    第一支撑部，位于所述弯折部的第一侧，所述第一支撑部被配置为通过所述第一侧的第一凹槽与所述弯折部连接；
    第二支撑部，位于所述弯折部的第二侧，所述第二侧与所述第一侧相对，所述第二支撑部被配置为通过所述第二侧的第一凹槽与所述弯折部连接。
  23. 根据权利要求1～18任一项所述的显示装置，其中，所述弯折部的材料的密度大于所述支撑部的材料的密度。
  24. 根据权利要求1～18任一项所述的显示装置，其中，所述弯折部的材料的弹性模量大于所述支撑部的材料的弹性模量。
  25. 一种支撑件，用于权利要求1～24中任一项所述的显示装置，所述显示装置包括显示面板，所述支撑件包括：
    弯折部，被配置为可弯折的支撑所述显示面板的弯折区，所述弯折部的至少一侧包括第一凹槽；
    支撑部，被配置为通过所述第一凹槽与所述弯折部连接，且支撑所述显示面板的非弯折区，其中，所述弯折部的材料与所述支撑部的材料密度不同。
  26. 一种支撑件的制作方法，所述支撑件用于权利要求1～24中任一项所述的显示装置，所述显示装置包括显示面板，所述方法包括：
    提供第一材料形成在至少一侧具有第一凹槽的弯折部，所述弯折部被配置为可弯折的支撑所述显示面板的弯折区；
    提供第二材料形成支撑部，所述支撑部被配置为通过所述第一凹槽与所述弯折部连接，且支撑所述非弯折区，其中，所述弯折部的材料与所述支撑部的材料密度不同。
  27. 根据权利要求26所述的制作方法，其中，所述支撑部包括搭接处，所述方法包括通过所述第一凹槽将所述支撑部与所述弯折部连接：
    将所述支撑部和所述弯折部置于热压模具中，其中，所述热压模具中对应于所述支撑部和所述弯折部的区域分别具有不同深度；
    利用热压工艺将所述搭接处与所述第一凹槽连接。
  28. 一种电子设备，包括权利要求1～24中任一项所述的显示装置。
PCT/CN2022/139677 2022-12-16 2022-12-16 显示装置、支撑件、支撑件的制作方法及电子设备 WO2024124549A1 (zh)

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CN110062077A (zh) * 2019-02-01 2019-07-26 华为终端有限公司 可折叠式终端设备用支撑片及可折叠式终端设备
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