WO2020124560A1 - 柔性显示设备及柔性显示设备的制作方法 - Google Patents

柔性显示设备及柔性显示设备的制作方法 Download PDF

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Publication number
WO2020124560A1
WO2020124560A1 PCT/CN2018/122693 CN2018122693W WO2020124560A1 WO 2020124560 A1 WO2020124560 A1 WO 2020124560A1 CN 2018122693 W CN2018122693 W CN 2018122693W WO 2020124560 A1 WO2020124560 A1 WO 2020124560A1
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WIPO (PCT)
Prior art keywords
flexible display
hot
bendable
carrier
melt adhesive
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/122693
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English (en)
French (fr)
Inventor
丁有翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Royole Technologies Co Ltd
Original Assignee
Shenzhen Royole Technologies Co Ltd
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 Shenzhen Royole Technologies Co Ltd filed Critical Shenzhen Royole Technologies Co Ltd
Priority to CN201880095902.4A priority Critical patent/CN112703545A/zh
Priority to PCT/CN2018/122693 priority patent/WO2020124560A1/zh
Publication of WO2020124560A1 publication Critical patent/WO2020124560A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Definitions

  • the present application relates to the technical field of electronic devices, in particular to a flexible display device and a method of manufacturing the flexible display device.
  • the flexible display device has the characteristics of being foldable, so that it can have at least two display modes, that is, it has a larger display area when it is unfolded, and has a larger display area when it is folded. Good portability.
  • the flexible display screen is pasted on the structural support body that can be bent through double-sided tape, the adhesion effect of the flexible display screen and the structural support member is not good, and the flexible display screen is easily stretched when it is stretched during bending Relative creep occurs between the structural bearing members, which affects the use of flexible display devices.
  • the technical problem to be solved by the present application is to provide a flexible display device and a manufacturing method of the flexible display device, which are used to solve the problem of poor pasting effect between the flexible display screen and the carrier in the prior art.
  • a flexible display device which includes a carrier, a flexible display screen and an adhesive layer
  • the carrier includes a first carrier, a second carrier and a connection to the first carrier
  • a bendable connector between the component and the second carrier, the first carrier and the second carrier are rotatably connected via the bendable connector
  • the flexible display screen includes oppositely arranged A first non-bending portion, a second non-bending portion, and a bendable portion connected between the first non-bending portion and the second non-bending portion
  • the adhesive layer is adhered to the Between the first non-bending part and the first carrier, and between the second non-bending part and the second carrier, so that the bendable part follows the first carrier Bending relative to the second bearing member
  • the adhesive layer includes a baseless double-sided adhesive and a hot-melt adhesive, and the hot-melt adhesive is located outside the baseless double-sided adhesive.
  • the flexible display device includes a flexible display screen and a carrier, characterized in that the manufacturing method includes:
  • the flexible display screen includes a first non-bending part, a second non-bending part, and a bendable part connected between the first non-bending part and the second non-bending part, Attaching a substrate-free double-sided tape to the first non-bending part and the second non-bending part;
  • hot-melt adhesive on the first non-bending portion and the second non-bending portion, the hot-melt adhesive being located on the outside of the substrate-free double-sided adhesive;
  • the carrier includes a first carrier, a second carrier, and a bendable connector connected between the first carrier and the second carrier, and presses the first carrier to the On the first non-bending part, the first carrier is fixedly connected to the first non-bending part, and the second carrier is pressed against the second non-bending part, so that the The second bearing member is fixedly connected to the second non-bent portion.
  • the adhesive layer fixedly connects the first non-bent portion to the first carrier, the second non-bent portion to the second carrier, and the first carrier is opposite to the second carrier
  • the flexible display screen bends at the position of the bendable part, and the double-sided adhesive tape without substrate has a good fit and flatness, so that the surfaces of the first non-bent part and the second non-bent part are flat without bubbles.
  • the hot-melt adhesive has strong adhesiveness, and the hot-melt adhesive is attached to the outside of both sides without a substrate to improve the connection strength between the first non-bent portion and the first carrier, and the second non-bent portion and the second carrier To avoid the creeping of the flexible display screen when it is folded, which not only ensures the flatness of the fit, but also has a high adhesion strength, and improves the adhesion effect of the flexible display screen and the carrier.
  • FIG. 1 is a side view of the flexible display device provided in Embodiment 1 of the present application when it is in an unfolded state.
  • Embodiment 2 is a side view of the flexible display device provided in Embodiment 1 of the present application when it is in a folded state.
  • FIG. 3 is a schematic diagram of the positional relationship between the flexible display screen and the adhesive layer.
  • FIG. 4 is a schematic diagram of the partial structure of FIG. 3.
  • FIG. 5 is a schematic diagram of an embodiment of a positional relationship between a flexible display screen and an adhesive layer.
  • FIG. 6 is a schematic diagram of another embodiment of the positional relationship between the flexible display screen and the adhesive layer.
  • FIG. 7 is a schematic diagram of the positional relationship between the flexible display screen and the adhesive layer of the flexible display device provided in Embodiment 2 of the present application.
  • FIG. 8 is a schematic diagram of an embodiment of a positional relationship between a flexible display screen and an adhesive layer.
  • FIG. 9 is a schematic diagram of the positional relationship between the flexible display screen and the adhesive layer of the flexible display device provided in Embodiment 3 of the present application.
  • FIG. 10 is a schematic diagram of an embodiment of a positional relationship between a flexible display screen and an adhesive layer.
  • FIG. 11 is a side view of the flexible display device provided in Embodiment 4 of the present application when it is in a deployed state.
  • FIG. 12 is a schematic diagram of the positional relationship between the flexible display screen of the flexible display device and the organic silicone body.
  • FIG. 13 is a schematic diagram of an embodiment of a positional relationship between a flexible display screen and an organic silicone body.
  • FIG. 14 is a schematic diagram of another embodiment of a positional relationship between a flexible display screen and an organic silicone body.
  • Example 15 is a schematic diagram of an implementation manner of a flexible display device provided in Example 5 of the present application.
  • Example 16 is a schematic diagram of another implementation manner of a flexible display device provided in Example 5 of the present application.
  • 17 is a flowchart of a method for manufacturing a flexible display device provided by an embodiment of the present application.
  • Embodiments of the present application provide a flexible display device that can be bent or unfolded to provide different working modes, such as an unfolded state and a folded state, to meet users' different use requirements and have good portability .
  • the flexible display device may be an electronic device having only a display function, such as a display, etc., or a touch device integrated with a touch control function.
  • the flexible display device may also be a smart phone with a communication function, a tablet computer, etc. equipment.
  • FIG. 1 is a side view of the flexible display device 100 provided in the first embodiment of the present application when it is in an unfolded state
  • FIG. 2 is a flexible display device 100 provided in the first embodiment of the present application when it is in a folded state Side view.
  • the flexible display device 100 includes a carrier 20, a flexible display screen 10, and an adhesive layer 30.
  • the carrier 20 includes a first carrier 22, a second carrier 24 and a bendable connection 26 connected between the first carrier 22 and the second carrier 24, the first carrier 22 and the second carrier 24 Rotatingly connected via a bendable connecting member 26, the flexible display screen 10 includes a first non-bent portion 12, a second non-bent portion 14 and a first non-bent portion 12 and a second non-bent portion connected to each other 14 ⁇ flexible portion 16.
  • the flexible display screen 10 when the flexible display device 100 is in a folded state, the flexible display screen 10 is located outside the carrier 20. Specifically, when the first carrier 22 and the second carrier 24 are relatively folded, the first non-bent portion 12 is located on the side of the first carrier 22 facing away from the second carrier 24, and the second non-bent portion 14 is located on the first The side of the second carrier 24 facing away from the first carrier 22 allows the user to observe the image displayed by the flexible display 10 no matter when the flexible display device 100 is in a folded state or an unfolded state.
  • the first carrier 22 and the second carrier 24 may be a housing, and the inside of the housing may be used to place electronic devices such as circuit boards, batteries, etc.
  • the first carrier 22 and the second carrier 24 may also be It is a rigid bracket or the like used to support the flexible display screen 10.
  • the flexible display screen 10 may be an organic light-emitting diode display (Organic Light-Emitting Diode, OLED). Further, the flexible display screen 10 may be a display screen with only a display function, or a display screen with integrated touch function.
  • the flexible display screen 10 is a complete display screen, and the first non-bent portion 12, the second non-bent portion 14 and the bendable portion 16 are different parts of the flexible display screen 10 divided according to positions.
  • the position of the first carrier 22 corresponds to the position of the first non-bent portion 12
  • the position of the second carrier 24 corresponds to the position of the second non-bent portion 14, the bendable connecting member 26 and the bendable portion
  • the 16 position corresponds.
  • the first carrier 22 is fixedly connected to the first non-bent part 12
  • the second carrier 24 is fixedly connected to the second non-bent part 14, and the bendable connector 26 and the bendable part 16 may or may not be connected .
  • the size of the first non-bent portion 12 is the same as the size of the first carrier 22, or the size of the first non-bent portion 12 is smaller than The size of the first carrier 22, in other words, the orthographic projection of the first non-bent portion 12 on the surface of the first carrier 22 is completely within the first carrier 22, so that the first carrier 22 can support the first non-bent
  • the bent portion 12 expands the first non-bent portion 12; on a plane perpendicular to the thickness of the second carrier 24, the size of the second non-bent portion 14 is the same as the size of the second carrier 24, or The size of the second non-bent portion 14 is smaller than the size of the second carrier 24.
  • the orthographic projection of the second non-bent portion 14 on the surface of the second carrier 24 is completely within the second carrier 24, so that the first The two carrier members 24 can support the second non-bent portion 14 to expand the second non-bent portion 14.
  • the bendable connecting member 26 may be a hinge structure, so that the first bearing member 22 can rotate relative to the second bearing member 24 through the bendable connecting member 26.
  • first carrier 22 and the second carrier 24 have the same shape and size, and the first carrier 22 and the second carrier 24 are symmetrically connected to both ends of the bendable connector 26.
  • first non-bent portion 12 and the second non-bent portion 14 have the same shape and size, and the first non-bent portion 12 and the second non-bent portion 14 are symmetrically connected to the bendable portion 16 Both ends.
  • the adhesive layer 30 is pasted between the first non-bent portion 12 and the first carrier 22, and the second non-bent portion 14 and the second carrier 24 In order to make the bendable portion 16 bend with the relative rotation of the first carrier 22 and the second carrier 24.
  • the first non-bent portion 12 and the first carrier 22 are pasted together by the viscosity of the adhesive layer 30, and the second non-bent portion 14 and the second carrier 24 are pasted by the viscosity of the adhesive layer 30
  • the number of adhesive layers 30 is two, one between the first non-bent portion 12 and the first carrier 22, and the other between the second non-bent portion 14 and the second carrier 24 between.
  • the first non-bent portion 12 and the first carrier 22 have the same active state
  • the second non-bent portion 14 and the second carrier 24 have the same active state, so that when the first carrier 22 and the second carrier 24 are opposite When folded or unfolded, the first non-bent portion 12 and the second non-bent portion 14 can be relatively folded or unfolded.
  • the flexible display screen 10 can be deformed at the bendable portion 16.
  • the first non-bent portion 12 and the second non-bent portion 14 stretch the bendable portion 16 from both ends of the bendable portion 16,
  • the bendable portion 16 stretches the first non-bent portion 12 and the second non-bent portion 14 in opposite directions, so that the first non-bent portion 12 and the first carrier 22 and the second non-bent portion
  • the portion 14 and the second carrier 24 tend to move relative to each other, and the adhesive layer 30 firmly fixes the first non-bent portion 12 and the first carrier 22, and the second non-bent portion 14 and the second carrier 24, Relative displacement of the first non-bent portion 12 and the first carrier 22, the second non-bent portion 14 and the second carrier 24 is avoided, and after the flexible display device 100 is unfolded and folded multiple times, the first non-folded portion
  • the bent portion 12 and the first carrier 22, the second non-bent portion 14 and the second carrier 24 still maintain a good fixing effect, and increase the service life of the
  • FIG. 3 is a schematic diagram of the positional relationship between the flexible display screen 10 and the adhesive layer 30. It can also be understood as a front view of the flexible display device 100 with the carrier 20 omitted.
  • the adhesive layer 30 includes a baseless double-sided adhesive 32 and a hot-melt adhesive 34.
  • the hot-melt adhesive 34 is located outside the baseless double-sided adhesive 32.
  • the substrate-free double-sided tape 32 is pasted on the surface of the first non-bent portion 12 and the surface of the second non-bent portion 14.
  • the substrate-free double-sided tape 32 has the characteristic of flat surface.
  • the bent portion 12 is pasted on the first carrier 20 through the baseless double-sided adhesive 32, or the second non-bent portion 14 is pasted on the second carrier 20 through the baseless double-sided adhesive 32
  • a defoaming process may be adopted
  • the air bubbles between the first non-bent part 12 and the first carrier 20, the second non-bent part 14 and the second carrier 20 during the bonding process are removed, so that the first non-bent part 12 and the second non-bent part
  • the display surface 10a of the bending portion 14 is flat and free from unevenness, and the display effect of the flexible display screen 10 is good.
  • the hot-melt adhesive is formed on the outer side of the baseless double-sided adhesive 32 by dispensing.
  • the hot-melt adhesive has the characteristics of strong adhesion.
  • the hot-melt adhesive increases the viscosity of the adhesive layer 30, thereby improving the A fixed strength of the non-bent portion 12 and the first carrier 20, and the second non-bent portion 14 and the second carrier 20.
  • the hot melt adhesive firmly fixes the first non-bent portion 12 and the first carrier 22, and the second non-bent portion 14 and the second carrier 24, avoiding The first non-bent portion 12 and the first carrier 22, the second non-bent portion 14 and the second carrier 24 are relatively displaced.
  • the substrate-free double-sided adhesive 32 may be optical adhesive (Optically Clear Adhesive, OCA).
  • OCA Optically Clear Adhesive
  • the adhesive layer 30 fixedly connects the first non-bent portion 12 to the first carrier 22, the second non-bent portion 14 to the second carrier 24, and the first carrier 22 and the second carrier 24 rotate relatively
  • the substrate-free double-sided adhesive 32 has a good fit and flatness, so that the surfaces of the first non-bent portion 12 and the second non-bent portion 14 Flat and no bubbles
  • the hot melt adhesive has a strong viscosity
  • the hot melt adhesive is attached to the outside of the two sides without a substrate to improve the first non-bent portion 12 and the first carrier 22, the second non-bent portion 14 and
  • the connection strength of the second carrier 24 prevents the flexible display screen 10 from creeping when folded, thereby ensuring the flatness of the fit and having a higher bonding strength, which improves the bonding effect of the flexible display screen 10 and the carrier 20 .
  • the flexible display screen 10 includes a back surface 10b disposed opposite to the display surface 10a.
  • the back surface 10b includes a non-bending portion corresponding to the first non-bending portion 12 or the second non-bending portion 14.
  • the adhesive layer 30 is located on the non-bending region 10c, and the orthographic projection of the hot melt adhesive 34 on the back surface 10b is located on the edge of the non-bending region 10c.
  • the number of the non-bent regions 10c is two, one is the portion of the back surface 10b at the first non-bent portion 12, and one is the portion of the back surface 10b at the second non-bent portion 14.
  • the first non-bent portion 12 and the second non-bent portion 14 are symmetrically arranged, and the two non-bent regions 10c have the same shape and size.
  • the hot melt adhesive and the substrate-free double-sided adhesive 32 can be distributed in the two non-bending regions 10c in the same way or differently.
  • the hot-melt adhesive 34 and the substrate-free double-sided adhesive 32 The distribution patterns in the two non-bending regions 10c are symmetrical to each other.
  • the orthographic projection of the baseless double-sided tape 32 on the back surface 10b is located in the middle of the non-bending area 10c, and the orthographic projection of the hot melt adhesive 34 on the back surface 10b is located at the edge of the non-bending area 10c.
  • the display surface 10a of the flexible display screen 10 includes a display area (ie, AA area) for display, and a non-display area located at the edge of the display area.
  • the non-display area generally corresponds to the wiring of the edge of the flexible display screen 10 .
  • the substrate-free double-sided tape 32 can be pasted on the area corresponding to the display area of the first non-bent portion 12 and the second non-bent portion 14 to ensure that the first non-bent portion 12 and the second non-bent portion 14 have
  • the flat display surface 10a, hot-melt adhesive can be pasted to the area of the first non-bending portion 12 and the second non-bending portion 14 corresponding to the non-display area, on the one hand does not affect the first non-bending portion 12 and the second non-bending
  • the flatness of the display surface 10 a of the bent portion 14, and on the other hand, enhancing the viscosity of the adhesive layer 30 from the edge is more advantageous for improving the firmness effect of adhesion.
  • the hot-melt adhesive 34 includes a first hot-melt adhesive 342 that extends along the first direction L, the number of the first hot-melt adhesive 342 is two, and two first hot-melt adhesives 342 Located on both sides of the substrate-free double-sided tape 32 in the second direction W, referring to FIG. 3, the first direction L is the first non-bent portion 12, the bendable portion 16, and the second non-bent portion 14 in this order The direction of connection, the second direction W is perpendicular to the first direction L.
  • the orthographic projection of the first hot-melt adhesive 342 on the back surface 10b is a long strip
  • the first hot-melt adhesive 342 is formed by the glue machine continuously dispensing along the first direction L.
  • the first direction L can also be understood as the length direction of the flexible display device 100 when the flexible display device 100 is in the expanded state
  • the second direction W can also be understood as the flexible state when the flexible display device 100 is in the expanded state
  • the two first hot-melt adhesives 342 are symmetrically distributed on both sides of the substrate-free double-sided adhesive 32, so that the force of the first non-bent portion 12 or the second non-bent portion 14 is uniform , Help to improve the firm effect of pasting.
  • FIGS. 5 and 6 are schematic diagrams of an embodiment of the positional relationship between the flexible display screen 10 and the adhesive layer 30.
  • the first hot-melt adhesive 342 includes a plurality of first hot-melt adhesive sections 3420, and the plurality of first hot-melt adhesive sections 3420 are arranged at intervals along the first direction L.
  • a plurality of first hot-melt adhesive sections 3420 are arranged at intervals in the first direction L to form first hot-melt adhesive bodies 342, and the first hot-melt adhesive sections 3420 are formed by the intermittent dispensing of the dispenser.
  • the shape and size of the orthographic projection of each first hot melt adhesive section 3420 on the back surface 10b may be the same or different.
  • a plurality of spaced first hot-melt adhesive segments 3420 can further improve the connection firmness of the first non-bent portion 12 and the first carrier 22, the second non-bent portion 14 and the second carrier 24, specifically, When the first non-bending portion 12 and the first carrier 22 are separated at the position of one first hot melt adhesive section 3420, the first non-bending portion 12 and the first carrier 22 are at the other first hot melt adhesive section 3420 The position of the first non-bent portion 12 and the first carrier 22 can still be firmly stuck together, and will not directly lead to other first hot melt adhesives due to the separation of the position of one first hot melt adhesive section 3420 Segment 3420 position is separated.
  • the size of the orthographic projection of each first hot-melt adhesive section 3420 in the non-bending area 10c is the same.
  • the first hot-melt adhesive section 3420 of the same size has the same dispensing amount, the dispensing method is simple, and it is easy to control the operation of the dispensing machine.
  • the size of the orthographic projection of the adjacent first hot-melt adhesive sections 3420 in the non-bending area 10 c increases in the direction away from the bendable portion 16.
  • the foldable part 16 stretches the first non-bent part 12 and the second non-bent part 14 in a direction away from the foldable part 16 Gradually increasing, correspondingly, increasing the amount of hot melt adhesive dispensed in the direction away from the bendable portion 16, the size of the orthographic projection of the first hot melt adhesive section 3420 in the non-bending area 10c gradually increases,
  • the connection strength of the first non-bent portion 12 and the first carrier 22, the second non-bent portion 14 and the second carrier 24 gradually increases, thereby preventing the first non-bent portion 12 and the first carrier 22, the first The second non-bending portion 14 and the second carrier 24 are relatively displaced, and after the flexible display device 100 is unfolded and folded multiple times, the first non-bent portion 12 and the
  • FIG. 7 is a schematic diagram of the positional relationship between the flexible display screen 10 and the adhesive layer 30 of the flexible display device 100 provided in Embodiment 2 of the present application.
  • the flexible display device 100 provided in the second embodiment of the present application is substantially the same as the flexible display device 100 provided in the first embodiment, the difference is that the hot-melt adhesive 34 further includes a second hot-melt adhesive 344, and the second hot-melt adhesive 344 is located on the baseless
  • the double-sided adhesive 32 is away from the bendable portion 16 and the second hot-melt adhesive 344 extends in the second direction W.
  • the orthographic projection of the second hot-melt adhesive 344 on the back surface 10b is a long strip
  • the second hot-melt adhesive 344 is formed by the glue machine continuously dispensing along the second direction W.
  • the first hot-melt adhesive 342 and the second hot-melt adhesive 344 paste the first non-bent portion 12 and the first carrier 22, the second non-bent portion 14 and the second carrier 24 from different positions , Further enhancing the adhesion effect of the adhesive layer 30.
  • the second hot-melt adhesive body 344 includes a plurality of second hot-melt adhesive sections 3440, and the plurality of second hot-melt adhesive sections 3440 are arranged at intervals along the second direction W. Specifically, a plurality of second hot-melt adhesive sections 3440 are arranged at intervals in the second direction W to form a second hot-melt adhesive body 344, and the second hot-melt adhesive sections 3440 are formed by the intermittent dispensing of the dispenser.
  • the shape and size of the orthographic projection of each second hot-melt adhesive section 3440 on the back surface 10b may be the same or different.
  • a plurality of spaced second hot-melt adhesive sections 3440 can further improve the connection firmness of the first non-bent portion 12 and the first carrier 22, the second non-bent portion 14 and the second carrier 24, specifically, When the first non-bent portion 12 and the first carrier 22 are separated at the position of one second hot melt adhesive section 3440, the first non-bent portion 12 and the first carrier 22 are at the other second hot melt adhesive section 3440 The position of the first non-bent portion 12 and the first carrier 22 can still be firmly stuck together, and will not directly lead to other second hot melt adhesives due to the separation of the position of one second hot melt adhesive section 3440 Segment 3440 position is separated.
  • the size of the orthographic projection of each second hot melt adhesive section 3440 in the non-bending area 10c is the same.
  • the dispensing method of the equally spaced second hot melt adhesive section 3440 is simple and easy to control the operation of the dispenser.
  • the hot-melt adhesive 34 includes a first hot-melt adhesive 342, the first hot-melt adhesive 342 is located on the side of the substrate-free double-sided adhesive 32 facing away from the bendable portion 16, and the extension of the first hot-melt adhesive 342 The direction is perpendicular to the direction in which the first non-bent portion 12, the bendable portion 16, and the second non-bent portion 14 are sequentially connected.
  • the orthographic projection of the first hot-melt adhesive 342 on the back surface 10b is elongated, and the first hot-melt adhesive 342 is the dispenser along the direction perpendicular to the first non-bent portion 12 and the bendable portion 16 2.
  • the second non-bent portion 14 is formed by continuous dispensing in a direction in which the second non-bent portions 14 are connected in sequence.
  • the force of the bendable portion 16 to stretch the first non-bent portion 12 and the second non-bent portion 14 gradually increases in a direction away from the bendable portion 16 .
  • the side of the substrate-free double-sided adhesive 32 facing away from the bendable portion 16 is the position where the force is greatest, and the first hot-melt adhesive 342 is pasted from the side of the substrate-free double-sided adhesive 32 facing away from the bendable portion 16.
  • a non-bent portion 12 and the first carrier 22, a second non-bent portion 14 and the second carrier 24 can provide a good adhesion effect. Further, strengthening and fixing the flexible display screen 10 from both ends of the flexible display screen 10 is also beneficial to the deployment of the flexible display screen 10.
  • the first hot-melt adhesive 342 includes a plurality of first hot-melt adhesive sections 3420, and the plurality of first hot-melt adhesive sections 3420 are perpendicular to the first non-bent portion 12, the bendable portion 16, and the second The non-bent portions 14 are arranged at intervals in the direction in which they are sequentially connected.
  • the first hot-melt adhesive section 3420 is formed by the intermittent dispensing of the dispenser.
  • the shape and size of the orthographic projection of each first hot melt adhesive section 3420 on the back surface 10b may be the same or different.
  • a plurality of spaced first hot-melt adhesive segments 3420 can further improve the connection firmness of the first non-bent portion 12 and the first carrier 22, the second non-bent portion 14 and the second carrier 24, specifically, When the first non-bending portion 12 and the first carrier 22 are separated at the position of one first hot melt adhesive section 3420, the first non-bending portion 12 and the first carrier 22 are at the other first hot melt adhesive section 3420 The position of the first non-bent portion 12 and the first carrier 22 can still be firmly stuck together, and will not directly lead to other first hot melt adhesives due to the separation of the position of one first hot melt adhesive section 3420 Segment 3420 position is separated.
  • FIG. 11 is a side view of the flexible display device 100 according to Embodiment 4 of the present application when it is in a deployed state.
  • the connection relationship between the first non-bent portion 12 and the first carrier 22, the second non-bent portion 14 and the second carrier 24 of the flexible display device 100 may be provided in Embodiments 1 to 3 of this application Any kind.
  • an organic silicone body 40 is provided between the bendable connector 26 and the bendable portion 16, and the bendable portion 16 is pasted to the bendable connector 26 through the organic silicone body 40.
  • the organic silicone body 40 has good elasticity.
  • the bendable portion 16 is stretched by the force of the first non-bending portion 12 and the second non-bending portion 14 in the folded state, the organic silicone body may also respond accordingly.
  • the deformation makes the bendable portion 16 fit on the bendable connecting member 26.
  • the bendable connector 26 can support the bendable portion 16 to flatten the bendable portion 16 and prevent the bendable portion 16 from arching.
  • FIG. 12 is a schematic diagram of the positional relationship between the flexible display screen 10 of the flexible display device 100 and the organic silicone body 40.
  • the flexible display screen 10 includes a back surface 10b disposed opposite to the display surface 10a.
  • the back surface 10b includes a bendable area 10d corresponding to the bendable portion 16.
  • the silicone body 40 includes a first silicone body 42.
  • the silicone body 42 is located on the bendable region 10d, the orthographic projection of the first silicone body 42 on the back surface 10b is located on the edge of the bendable region 10d, and the first silicone body 42 extends along the first direction L, where the first direction L It is the direction in which the first non-bent portion 12, the bendable portion 16, and the second non-bent portion 14 are connected in sequence.
  • the bendable area 10d is located between the two non-bendable areas 10c.
  • the display surface 10a of the flexible display screen 10 includes a display area (ie, AA area) for display, and a non-display area located at the edge of the display area.
  • the non-display area generally corresponds to the wiring of the edge of the flexible display screen 10
  • the first silicone body 42 can be attached to the area of the bendable portion 16 corresponding to the non-display area, on the one hand, it does not affect the flatness of the display surface 10a of the first non-bend portion 12 and the second non-bend portion 14, the other In terms of enhancing the viscosity of the adhesive layer 30 from the edge, it is more advantageous to improve the firmness of the adhesion.
  • the orthographic projection of the first silica gel body 42 on the back surface 10b is a long strip, and the first silica gel body 42 is formed by the glue machine continuously dispensing along the first direction L.
  • the first direction L can also be understood as the length direction of the flexible display device 100 when the flexible display device 100 is in the expanded state.
  • the two first silicone bodies 42 are symmetrically distributed, so that the force of the bendable portion 16 is uniform, which is beneficial to improve the firmness of the paste.
  • FIGS. 13 and 14 are schematic diagrams of an embodiment of the positional relationship between the flexible display screen 10 and the organic silicone body 40.
  • the first silica gel body 42 includes a plurality of first silica gel segments 420, and the plurality of first silica gel segments 420 are arranged at intervals along the first direction L.
  • the plurality of first silica gel sections 420 are arranged at intervals in the first direction L to form the first silica gel body 42, and the first silica gel sections 420 are formed by the dispensing of the glue machine intermittently.
  • the shape and size of the orthographic projection of each first silicone segment 420 on the back surface 10b may be the same or different.
  • the plurality of spaced first silicone segments 420 can further improve the connection firmness of the bendable portion 16 and the bendable connecting member 26. Specifically, when the bendable portion 16 and the bendable connecting member 26 are in a first When the positions of the silicone section 420 are separated, the bendable portion 16 and the bendable connecting piece 26 are not separated at the positions of the other first silicone sections 420, and the bendable portion 16 and the bendable connecting piece 26 can still be firmly attached to Together, and will not directly lead to the separation of the positions of the other first silica gel sections 420 because of the separation of the positions of one first silica gel section 420.
  • the size of the orthographic projection of each first silicone segment 420 in the bendable region 10d is the same.
  • the first silicone section 420 of the same size has the same amount of dispensing, the dispensing method is simple, and it is easy to control the operation of the dispensing machine.
  • the size of the orthographic projection of the adjacent first silica gel segments 420 in the bendable region 10 d increases in the direction away from the bendable portion 16.
  • the bendable portion 16 when the bendable portion 16 is bent, the closer to the center of the bendable portion 16, the greater the amount of deformation of the bendable portion 16, and the farther away from the position of the center of the bendable portion 16, the bendable portion The smaller the amount of deformation of 16, from the edge position of the bendable portion 16 to the center position of the bendable portion 16, the size of the first silicone section 420 is sequentially reduced, which can reduce the first silicone section 420 to the bendable section 16 The effect of the bending effect.
  • the flexible display device 100 provided in the fifth embodiment of the present application is substantially the same as the flexible display device 100 provided in the fourth embodiment, except that the organic silicone body 40 further includes a second silicone body 44 and the second The silicone body 44 is located between the pair of first silicone bodies 42.
  • the first silicone body 42 and the second silicone body 44 stick the bendable portion 16 and the bendable connector 26 from different positions, which further enhances the sticking effect of the adhesive layer 30.
  • the number of the second silica gel bodies 44 is multiple, and the plurality of second silica gel bodies 44 are arranged at intervals along the second direction W, where the second direction W is perpendicular to the first Direction L.
  • the plurality of spaced second silicone bodies 44 can further improve the connection firmness of the non-bendable portion and the bendable connector 26 without affecting the bending effect of the bendable portion 16.
  • the organic silica gel body 40 further includes a second silica gel body 44, the second silica gel body 44 is located between the pair of first silica gel bodies 42, and the number of the second silica gel bodies 44 There are a plurality of second silica gel bodies 44 arranged in an array.
  • the plurality of second silicone bodies 44 arranged in an array can further improve the connection firmness of the non-bendable portion and the bendable connector 26 without affecting the bending effect of the bendable portion 16.
  • an embodiment of the present application also provides a method for manufacturing a flexible display device, which is used to manufacture the flexible display device provided in the embodiment of the present application.
  • the manufacturing method of the flexible display device includes at least the following steps:
  • the baseless double-sided adhesive is optical adhesive.
  • hot-melt adhesive on the first non-bent portion and the second non-bent portion, the hot-melt adhesive is located on the outside of the substrate-free double-sided adhesive.
  • the manufacturing method further includes: applying organic silicone to the bendable portion, pressing the bendable connector onto the bendable portion, so that the bendable connector is fixedly connected to the bendable portion .
  • the adhesive layer fixedly connects the first non-bending part to the first carrier, and the second non-bending part to the second carrier.
  • the flexible display screen can be folded Bending occurs at the bending part, and the double-sided adhesive tape without base material has good flatness of fitting, so that the surfaces of the first non-bending part and the second non-bending part are flat without bubbles, and the hot melt adhesive has strong adhesion ,
  • the hot-melt adhesive is attached to the outside of the double-sided without substrate to improve the connection strength of the first non-bending portion and the first carrier, the second non-bending portion and the second carrier, to avoid the flexible display screen when folded Creeping occurs, which not only ensures the flatness of the fit, but also has a high adhesive strength, and improves the adhesive effect of the flexible display screen and the carrier.
  • first and second are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include one or more of the features.
  • the meaning of “plurality” is two or more, unless otherwise specifically limited.
  • the terms “installation”, “connected”, and “connected” should be understood in a broad sense, for example, it can be a fixed connection or It is a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediary, it can be a connection between two components or two components Interaction.
  • installation should be understood in a broad sense, for example, it can be a fixed connection or It is a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediary, it can be a connection between two components or two components Interaction.
  • the first feature “above” or “below” the second feature may include the first and second features in direct contact, or may include the first and The second feature is not in direct contact but through another feature between them.
  • the first feature is “above”, “above” and “above” the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is less horizontal than the second feature.

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Abstract

一种柔性显示设备(100)及柔性显示设备(100)的制作方法，包括承载体(20)、柔性显示屏(10)及粘接层(30)，承载体(20)包括第一承载件(22)、第二承载件(24)及连接于第一承载件(22)与第二承载件(24)之间的可折弯连接件(26)，第一承载件(22)和第二承载件(24)经可折弯连接件(26)转动连接，柔性显示屏(10)包括第一非折弯部(12)、第二非折弯部(14)及连接于第一非折弯部(12)和第二非折弯部(14)之间的可折弯部(16)，粘接层(30)粘贴于第一非折弯部(12)与第一承载件(22)之间，及第二非折弯部(14)与第二承载件(24)之间，以使可折弯部(16)随第一承载件(22)和第二承载件(24)的相对转动而折弯，粘接层(30)包括无基材双面胶(32)和热熔胶体(34)，热熔胶体(34)位于无基材双面胶(32)的外侧。

Description

柔性显示设备及柔性显示设备的制作方法 技术领域
本申请涉及电子设备技术领域，尤其是涉及一种柔性显示设备及柔性显示设备的制作方法。
背景技术
手机等显示设备是生活中常见的电子设备，人们的生活已越来越离不开显示设备。随着技术的进步，柔性显示设备的应用越来越广泛，柔性显示设备具有可折叠的特点，从而可以具有至少两种显示方式，即展开状态时具有较大的显示面积，折叠状态时具有较好的便携性。
现有技术中，柔性显示屏通过双面胶粘贴在可以折弯的结构承载体上，柔性显示屏与结构承载件的粘贴效果不佳，柔性显示屏在折弯时受到拉伸而易与结构承载件之间发生相对蠕动，影响柔性显示设备使用。
发明内容
本申请要解决的技术问题是提供一种柔性显示设备及柔性显示设备的制作方法，用以解决现有技术中柔性显示屏与承载体的粘贴效果不佳的问题。
为解决上述技术问题，一方面，提供一种柔性显示设备，包括承载体、柔性显示屏及粘接层，所述承载体包括第一承载件、第二承载件及连接于所述第一承载件与所述第二承载件之间的可折弯连接件，所述第一承载件和所述第二承载件经所述可折弯连接件转动连接，所述柔性显示屏包括相对设置的第一非折弯部、第二非折弯部及连接于所述第一非折弯部和所述第二非折弯部之间的可折弯部，所述粘接层粘贴于所述第一非折弯部与所述第一承载件之间，及所述第二非折弯部与所述第二承载件之间，以使所述可折弯部随所述第一承载件和所述第二承载件的相对转动而折弯，
其中，所述粘接层包括无基材双面胶和热熔胶体，所述热熔胶体位于所述无基材双面胶的外侧。
另一方面，提供一种柔性显示设备的制作方法，所述柔性显示设备包括柔性显示屏和承载体，其特征在于，所述制作方法包括：
所述柔性显示屏包括相对设置的第一非折弯部、第二非折弯部及连接于所述第一非折弯部和所述第二非折弯部之间的可折弯部，在所述第一非折弯部和所述第二非折弯部上贴合无基材双面胶；
在所述第一非折弯部和所述第二非折弯部上涂覆热熔胶，所述热熔胶位于所述无基材双面胶的外侧；
所述承载体包括第一承载件、第二承载件及连接于所述第一承载件与所述第二承载件之间的可折弯连接件，将所述第一承载件压合于所述第一非折弯部上，使所述第一承载件固定连接所述第一非折弯部，将所述第二承载件压合于所述第二非折弯部上，使所述第二承载件固定连接所述第二非折弯部。
上述技术方案的有益效果如下：粘接层使第一非折弯部与第一承载件固定连接、第二非折弯部与第二承载件固定连接，第一承载件与第二承载件相对转动时柔性显示屏在可折弯部位置发生折弯，无基材双面胶具有较好的贴合平整性，使第一非折弯部和第二非折弯部的表面平整无气泡，热熔胶具有较强的粘性，热熔胶贴合于无基材双面的外侧以提高第一非折弯部与第一承载件、第二非折弯部与第二承载件的连接强度，避免柔性显示屏在折叠时发生蠕动，从而既保证了贴合平整性，又具有较高的粘贴强度，提高了柔性显示屏与承载体的粘贴效果。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例一提供的柔性显示设备处于展开状态时的侧视图。
图2为本申请实施例一提供的柔性显示设备处于折叠状态时的侧视图。
图3为柔性显示屏与粘接层的位置关系的示意图。
图4为图3的部分结构的示意图。
图5为柔性显示屏与粘接层的位置关系的一种实施方式的示意图。
图6为柔性显示屏与粘接层的位置关系的另一种实施方式的示意图。
图7为本申请实施例二提供的柔性显示设备的柔性显示屏与粘接层的位置关系的示意图。
图8为柔性显示屏与粘接层的位置关系的一种实施方式的示意图。
图9为本申请实施例三提供的柔性显示设备的柔性显示屏与粘接层的位置关系的示意图。
图10为柔性显示屏与粘接层的位置关系的一种实施方式的示意图。
图11为本申请实施例四提供的柔性显示设备处于展开状态时的侧视图。
图12为柔性显示设备的柔性显示屏与有机硅胶体的位置关系的示意图。
图13为柔性显示屏与有机硅胶体的位置关系的一种实施方式的示意图。
图14为柔性显示屏与有机硅胶体的位置关系的另一种实施方式的示意图。
图15为本申请实施例五提供的柔性显示设备的一种实施方式的示意图。
图16为本申请实施例五提供的柔性显示设备的另一种实施方式的示意图。
图17为本申请实施例提供的柔性显示设备的制作方法的流程图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例提供一种柔性显示设备，柔性显示设备可以折弯或展开，以提供不同的工作模式，例如展开状态和折叠状态，以满足用户不同使用需求的同时，兼具便携性好的特点。具体的，柔性显示设备可以为仅具有显示功能电子设备，例如显示器等，也可以为集成有触控功能的触摸设备等，当然，柔性显示设备也可以为具有通信功能的手机、平板电脑等智能设备。
请参阅图1和图2，其中，图1为本申请实施例一提供的柔性显示设备100处于展开状态时的侧视图，图2为本申请实施例一提供的柔性显示设备100处于折叠状态时的侧视图。本实施例中，柔性显示设备100包括承载体20、柔性显 示屏10及粘接层30。承载体20包括第一承载件22、第二承载件24及连接于第一承载件22与第二承载件24之间的可折弯连接件26，第一承载件22和第二承载件24经可折弯连接件26转动连接，柔性显示屏10包括相对设置的第一非折弯部12、第二非折弯部14及连接于第一非折弯部12和第二非折弯部14之间的可折弯部16。
本实施例中，柔性显示设备100处于折叠状态时，柔性显示屏10位于承载体20的外侧。具体的，第一承载件22和第二承载件24相对折叠时，第一非折弯部12位于第一承载件22背离第二承载件24的一侧，第二非折弯部14位于第二承载件24背离第一承载件22的一侧，无论柔性显示设备100处于折叠状态或展开状态时，用户均能观察到柔性显示屏10显示的图像。
一种实施方式中，第一承载件22和第二承载件24可以为壳体，壳体内部可以用于设置电路板、电池等电子器件，第一承载件22和第二承载件24也可以为刚性的支架等，用于支撑柔性显示屏10。本实施例中，柔性显示屏10可以为有机发光二极体显示屏(Organic Light-Emitting Diode，OLED)。进一步的，柔性显示屏10可以为仅具有显示功能的显示屏，也可以为集成有触控功能的显示屏。本实施例中，柔性显示屏10为一块完整的显示屏，第一非折弯部12、第二非折弯部14及可折弯部16为根据位置划分的柔性显示屏10的不同部分。
本实施例中，第一承载件22与第一非折弯部12的位置对应，第二承载件24与第二非折弯部14的位置对应，可折弯连接件26与可折弯部16的位置对应。第一承载件22与第一非折弯部12固定连接，第二承载件24与第二非折弯部14固定连接，可折弯连接件26与可折弯部16可以连接也可以不连接。一种实施方式中，在垂直于第一承载件22的厚度的平面上，第一非折弯部12的尺寸和第一承载件22的尺寸相同，或者第一非折弯部12的尺寸小于第一承载件22的尺寸，换言之，第一非折弯部12在第一承载件22的表面上的正投影完全位于第一承载件22内，以使第一承载件22可以支撑第一非折弯部12，使第一非折弯部12展开；在垂直于第二承载件24的厚度的平面上，第二非折弯部14的尺寸和第二承载件24的尺寸相同，或者第二非折弯部14的尺寸小于第二承载件24的尺寸，换言之，第二非折弯部14在第二承载件24的表面上的正投影完全位于第二承载件24内，以使第二承载件24可以支撑第二非折弯部14，使第二非折弯部14展开。本实施例中， 可折弯连接件26可以为铰链结构，从而第一承载件22可以通过可折弯连接件26相对第二承载件24转动。
一种实施方式中，第一承载件22和第二承载件24的形状、尺寸相同，并且第一承载件22和第二承载件24对称的连接于可折弯连接件26的两端。对应的，第一非折弯部12和第二非折弯部14的形状、尺寸相同，并且第一非折弯部12和第二非折弯部14对称的连接于可折弯部16的两端。
请继续参阅图1和图2，本实施例中，粘接层30粘贴于第一非折弯部12与第一承载件22之间，及第二非折弯部14与第二承载件24之间，以使可折弯部16随第一承载件22和第二承载件24的相对转动而折弯。具体的，第一非折弯部12与第一承载件22通过粘接层30的粘性而粘贴在一起，第二非折弯部14与第二承载件24通过粘接层30的粘性而粘贴在一起，换言之，粘接层30的数量为两个，一个位于第一非折弯部12与第一承载件22之间，另一个位于第二非折弯部14与第二承载件24之间。第一非折弯部12与第一承载件22的活动状态一致，第二非折弯部14与第二承载件24的活动状态一致，从而当第一承载件22和第二承载件24相对折叠或展开时，第一非折弯部12和第二非折弯部14可以相对折叠或展开，具体的，柔性显示屏10可以发生形变的位置为可折弯部16。本实施例中，柔性显示屏10从折叠展开状态到折叠状态时，第一非折弯部12和第二非折弯部14从可折弯部16的两端拉伸可折弯部16，对应的，可折弯部16向相反的方向拉伸第一非折弯部12和第二非折弯部14，使第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24产生相对运动的趋势，粘接层30牢固的固定第一非折弯部12和第一承载件22，以及第二非折弯部14和第二承载件24，避免了第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24发生相对位移，在柔性显示设备100进行多次展开、折叠后，第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24依然保持良好的固定效果，提高柔性显示设备100的使用寿命。
请参阅图3，图3为柔性显示屏10与粘接层30的位置关系的示意图，也可以理解为省略了承载体20的柔性显示设备100的正视图。本实施例中，粘接层30包括无基材双面胶32和热熔胶体34，热熔胶体34位于无基材双面胶32的外侧。具体的，无基材双面胶32粘贴于第一非折弯部12的表面和第二非折弯部14的表 面，无基材双面胶32具有表面平整的特点，当第一非折弯部12通过无基材双面胶32粘贴在第一承载体20，或第二非折弯部14通过无基材双面胶32粘贴在第二承载体20上后，可以通过脱泡工艺将贴合过程中第一非折弯部12与第一承载体20、第二非折弯部14与第二承载体20之间的气泡去除，从而第一非折弯部12和第二非折弯部14的显示面10a平整、无凹凸，柔性显示屏10的显示效果好。本实施例中，热熔胶通过点胶的方式形成在无基材双面胶32的外侧，热熔胶具有粘性强的特点，热熔胶提高了粘接层30的粘性，从而提高了第一非折弯部12与第一承载体20、第二非折弯部14与第二承载体20的固定强度。柔性显示屏10从折叠展开状态到折叠状态时，热熔胶牢固的固定第一非折弯部12和第一承载件22，以及第二非折弯部14和第二承载件24，避免了第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24发生相对位移。
一种实施方式中，无基材双面胶32可以为光学胶(Optically Clear Adhesive，OCA)，光学胶成本低，粘贴工艺简单。
粘接层30使第一非折弯部12与第一承载件22固定连接、第二非折弯部14与第二承载件24固定连接，第一承载件22与第二承载件24相对转动时柔性显示屏10在可折弯部16位置发生折弯，无基材双面胶32具有较好的贴合平整性，使第一非折弯部12和第二非折弯部14的表面平整无气泡，热熔胶具有较强的粘性，热熔胶贴合于无基材双面的外侧以提高第一非折弯部12与第一承载件22、第二非折弯部14与第二承载件24的连接强度，避免柔性显示屏10在折叠时发生蠕动，从而既保证了贴合平整性，又具有较高的粘贴强度，提高了柔性显示屏10与承载体20的粘贴效果。
请参阅图1和图3，本实施例中，柔性显示屏10包括与显示面10a相背设置的背面10b，背面10b包括对应第一非折弯部12或第二非折弯部14的非折弯区域10c，粘接层30位于非折弯区域10c上，热熔胶体34在背面10b的正投影位于非折弯区域10c的边缘。具体的，非折弯区域10c的数量为两个，一个为背面10b在第一非折弯部12的部分，一个为背面10b在第二非折弯部14的部分。一种实施方式中，第一非折弯部12和第二非折弯部14对称设置，两个非折弯区域10c的形状尺寸相同。进一步的，热熔胶和无基材双面胶32在两个非折弯区域10c的分布方式可以相同，也可以不同，一种实施方式中， 热熔胶体34和无基材双面胶32在两个非折弯区域10c的分布方式相互对称。本实施例中，无基材双面胶32在背面10b的正投影位于非折弯区域10c的中间位置，热熔胶体34在背面10b的正投影位于非折弯区域10c的边缘位置。一种实施方式中，柔性显示屏10的显示面10a包括用于显示的显示区(即A-A区)，以及位于显示区边缘的非显示区，非显示区一般对应柔性显示屏10边缘的走线，无基材双面胶32可以粘贴于第一非折弯部12和第二非折弯部14对应显示区的区域，以保证第一非折弯部12和第二非折弯部14具有平整的显示面10a，热熔胶可以粘贴于第一非折弯部12和第二非折弯部14对应非显示区的区域，一方面不影响第一非折弯部12和第二非折弯部14的显示面10a的平整性，另一方面从边缘加强粘接层30的粘性更有利于提高粘贴的牢固效果。
请参阅图4，图4为图3的部分结构的示意图。如图所示，热熔胶体34包括第一热熔胶体342，第一热熔胶体342沿第一方向L延伸，第一热熔胶体342的数量为两个，两个第一热熔胶体342分别位于无基材双面胶32在第二方向W上的两侧，结合图3，第一方向L为第一非折弯部12、可折弯部16、第二非折弯部14依次连接的方向，第二方向W垂直于第一方向L。一种实施方式中，第一热熔胶体342在背面10b上的正投影为长条状，第一热熔胶体342是点胶机沿第一方向L连续点胶形成的。具体的，第一方向L也可以理解为，当柔性显示设备100为展开状态时，柔性显示设备100的长度方向，第二方向W也可以理解为，当柔性显示设备100为展开状态时，柔性显示设备100的宽度方向。一种实施方式中，两个第一热熔胶体342对称的分布于无基材双面胶32的两侧，从而使第一非折弯部12或第二非折弯部14的受力均匀，有利于提高粘贴的牢固效果。
请结合图5和图6，图5和图6为柔性显示屏10与粘接层30的位置关系的一种实施方式的示意图。本实施例中，第一热熔胶体342包括多个第一热熔胶段3420，多个第一热熔胶段3420沿第一方向L间隔排列。具体的，多个第一热熔胶段3420沿第一方向L间隔排列形成第一热熔胶体342，第一热熔胶段3420为点胶机间断的点胶而形成。每个第一热熔胶段3420在背面10b的正投影的形状、尺寸可以相同，也可以不同。多个间隔的第一热熔胶段3420可以进一步的提高第一非折弯部12和第一承载件22、第二非折弯部14和第二 承载件24的连接牢固性，具体的，当第一非折弯部12和第一承载件22在一个第一热熔胶段3420的位置分离时，第一非折弯部12和第一承载件22在其他第一热熔胶段3420的位置未分离，第一非折弯部12和第一承载件22依然可以牢固的粘贴在一起，并且不会因为一个第一热熔胶段3420位置的分离而直接导致其他第一热熔胶段3420位置分离。
具体到图5，一种可选的实施方式中，每个第一热熔胶段3420在非折弯区域10c的正投影的尺寸相同。尺寸相同的第一热熔胶段3420的点胶量相同，点胶方式简单，容易控制点胶机操作。
具体到图6，另一种可选的实施方式中，沿背离可折弯部16的方向，相邻的第一热熔胶段3420在非折弯区域10c的正投影的尺寸依次增大。具体的，柔性显示屏10从折叠展开状态到折叠状态时，沿背离可折弯部16的方向，可折弯部16拉伸第一非折弯部12和第二非折弯部14的力逐渐增大，对应的，沿背离可折弯部16的方向，逐渐增大热熔胶的点胶量，第一热熔胶段3420在非折弯区域10c的正投影的尺寸逐渐增大，第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24的连接强度逐渐增强，从而防止第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24发生相对位移，在柔性显示设备100进行多次展开、折叠后，第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24依然保持良好的固定效果，提高柔性显示设备100的使用寿命。
请参阅图7，图7为本申请实施例二提供的柔性显示设备100的柔性显示屏10与粘接层30的位置关系的示意图。本申请实施例二提供的柔性显示设备100与实施例一提供的柔性显示设备100大致相同，不同点在于，热熔胶体34还包括第二热熔胶体344，第二热熔胶体344位于无基材双面胶32背离可折弯部16的一侧，并且第二热熔胶体344沿第二方向W延伸。一种实施方式中，第二热熔胶体344在背面10b上的正投影为长条状，第二热熔胶体344是点胶机沿第二方向W连续点胶形成的。柔性显示屏10从折叠展开状态到折叠状态时，沿背离可折弯部16的方向，可折弯部16拉伸第一非折弯部12和第二非折弯部14的力逐渐增大，无基材双面胶32背离可折弯部16的一侧即为该力最大的位置，第二热熔胶体344从无基材双面胶32背离可折弯部16的一侧粘 贴第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24，可以提供良好的粘贴效果。进一步的，从柔性显示屏10的两端加强固定柔性显示屏10，也有利于柔性显示屏10的展开。本实施例中，第一热熔胶体342和第二热熔胶体344从不同的位置粘贴第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24，进一步加强了粘接层30的粘贴效果。
请参阅图8，图8为柔性显示屏10与粘接层30的位置关系的一种实施方式的示意图。本实施例中，第二热熔胶体344包括多个第二热熔胶段3440，多个第二热熔胶段3440沿第二方向W间隔排列。具体的，多个第二热熔胶段3440沿第二方向W间隔排列形成第二热熔胶体344，第二热熔胶段3440为点胶机间断的点胶而形成。每个第二热熔胶段3440在背面10b的正投影的形状、尺寸可以相同，也可以不同。多个间隔的第二热熔胶段3440可以进一步的提高第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24的连接牢固性，具体的，当第一非折弯部12和第一承载件22在一个第二热熔胶段3440的位置分离时，第一非折弯部12和第一承载件22在其他第二热熔胶段3440的位置未分离，第一非折弯部12和第一承载件22依然可以牢固的粘贴在一起，并且不会因为一个第二热熔胶段3440位置的分离而直接导致其他第二热熔胶段3440位置分离。
一种实施方式中，每个第二热熔胶段3440在非折弯区域10c的正投影的尺寸相同。等间距的第二热熔胶段3440的点胶方式简单，容易控制点胶机操作。
请参阅图9，图9为本申请实施例三提供的柔性显示设备100的柔性显示屏10与粘接层30的位置关系的示意图。本实施例中，热熔胶体34包括第一热熔胶体342，第一热熔胶体342位于无基材双面胶32背离可折弯部16的一侧，并且第一热熔胶体342的延伸方向垂直于第一非折弯部12、可折弯部16、第二非折弯部14依次连接的方向。一种实施方式中，第一热熔胶体342在背面10b上的正投影为长条状，第一热熔胶体342是点胶机沿垂直于第一非折弯部12、可折弯部16、第二非折弯部14依次连接的方向连续点胶形成的。柔性显示屏10从折叠展开状态到折叠状态时，沿背离可折弯部16的方向，可折弯部16拉伸第一非折弯部12和第二非折弯部14的力逐渐增大，无基材双面胶 32背离可折弯部16的一侧即为该力最大的位置，第一热熔胶体342从无基材双面胶32背离可折弯部16的一侧粘贴第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24，可以提供良好的粘贴效果。进一步的，从柔性显示屏10的两端加强固定柔性显示屏10，也有利于柔性显示屏10的展开。
请参阅图10，图10为柔性显示屏10与粘接层30的位置关系的一种实施方式的示意图。本实施例中，第一热熔胶体342包括多个第一热熔胶段3420，多个第一热熔胶段3420沿垂直于第一非折弯部12、可折弯部16、第二非折弯部14依次连接的方向间隔排列。具体的，第一热熔胶段3420为点胶机间断的点胶而形成。每个第一热熔胶段3420在背面10b的正投影的形状、尺寸可以相同，也可以不同。多个间隔的第一热熔胶段3420可以进一步的提高第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24的连接牢固性，具体的，当第一非折弯部12和第一承载件22在一个第一热熔胶段3420的位置分离时，第一非折弯部12和第一承载件22在其他第一热熔胶段3420的位置未分离，第一非折弯部12和第一承载件22依然可以牢固的粘贴在一起，并且不会因为一个第一热熔胶段3420位置的分离而直接导致其他第一热熔胶段3420位置分离。
请参阅图11，图11为本申请实施例四提供的柔性显示设备100处于展开状态时的侧视图。本实施例中，柔性显示设备100的第一非折弯部12和第一承载件22、第二非折弯部14和第二承载件24的连接关系可以为本申请实施例一至三提供的任意一种。
本实施例中，可折弯连接件26和可折弯部16之间设有有机硅胶体40，可折弯部16通过有机硅胶体40粘贴于可折弯连接件26。有机硅胶体40具有较好的弹性，当可折弯部16在折叠状态时受到第一非折弯部12和第二非折弯部14的作用力而拉伸时，有机硅胶也可发生相应的形变，使可折弯部16贴合在可折弯连接件26上。当柔性显示设备100从折叠状态到展开状态时，可折弯连接件26可以支撑可折弯部16，使可折弯部16展平，防止可折弯部16拱起。
请参阅图12，图12为柔性显示设备100的柔性显示屏10与有机硅胶体40的位置关系的示意图。本实施例中，柔性显示屏10包括与显示面10a相背 设置的背面10b，背面10b包括对应可折弯部16的可折弯区域10d，有机硅胶体40包括第一硅胶体42，第一硅胶体42位于可折弯区域10d上，第一硅胶体42在背面10b的正投影位于可折弯区域10d的边缘，并且第一硅胶体42沿第一方向L延伸，其中，第一方向L为第一非折弯部12、可折弯部16、第二非折弯部14依次连接的方向。
具体的，可折弯区域10d位于两个非折弯区域10c之间。一种实施方式中，柔性显示屏10的显示面10a包括用于显示的显示区(即A-A区)，以及位于显示区边缘的非显示区，非显示区一般对应柔性显示屏10边缘的走线，第一硅胶体42可以粘贴于可折弯部16对应非显示区的区域，一方面不影响第一非折弯部12和第二非折弯部14的显示面10a的平整性，另一方面从边缘加强粘接层30的粘性更有利于提高粘贴的牢固效果。
一种实施方式中，第一硅胶体42在背面10b上的正投影为长条状，第一硅胶体42是点胶机沿第一方向L连续点胶形成的。具体的，第一方向L也可以理解为，当柔性显示设备100为展开状态时，柔性显示设备100的长度方向。一种实施方式中，两个第一硅胶体42对称的分布，从而使可折弯部16的受力均匀，有利于提高粘贴的牢固效果。
请参阅图13和图14，图13和图14为柔性显示屏10与有机硅胶体40的位置关系的一种实施方式的示意图。本实施例中，第一硅胶体42包括多个第一硅胶段420，多个第一硅胶段420沿第一方向L间隔排列。具体的，多个第一硅胶段420沿第一方向L间隔排列形成第一硅胶体42，第一硅胶段420为点胶机间断的点胶而形成。每个第一硅胶段420在背面10b的正投影的形状、尺寸可以相同，也可以不同。多个间隔的第一硅胶段420可以进一步的提高可折弯部16和可折弯连接件26的连接牢固性，具体的，当可折弯部16和可折弯连接件26在一个第一硅胶段420的位置分离时，可折弯部16和可折弯连接件26在其他第一硅胶段420的位置未分离，可折弯部16和可折弯连接件26依然可以牢固的粘贴在一起，并且不会因为一个第一硅胶段420位置的分离而直接导致其他第一硅胶段420位置分离。
具体到图13，一种可选的实施方式中，每个第一硅胶段420在可折弯区域10d的正投影的尺寸相同。相同尺寸的第一硅胶段420的点胶量相同，点胶 方式简单，容易控制点胶机操作。
具体到图14，另一种可选的实施方式中，沿背离可折弯部16的方向，相邻的第一硅胶段420在可折弯区域10d的正投影的尺寸依次增大。具体的，当可折弯部16折弯时，越靠近可折弯部16中心的位置，可折弯部16的变形量越大，越远离可折弯部16中心的位置，可折弯部16的变形量越小，自可折弯部16的边缘位置到可折弯部16的中心位置，第一硅胶段420的尺寸依次减小，可以降低第一硅胶段420对可折弯部16的折弯效果的影响。
请参阅图15和图16，本申请实施例五提供的柔性显示设备100与实施例四提供的柔性显示设备100大致相同，不同点在于，有机硅胶体40还包括第二硅胶体44，第二硅胶体44位于一对第一硅胶体42之间。本实施例中，第一硅胶体42和第二硅胶体44从不同的位置粘贴可折弯部16和可折弯连接件26，进一步加强了粘接层30的粘贴效果。
具体到图15，一种可选的实施方式中，第二硅胶体44的数量为多个，多个第二硅胶体44沿第二方向W间隔排列，其中，第二方向W垂直于第一方向L。多个间隔的第二硅胶体44可以进一步的提高可非折弯部和可折弯连接件26的连接牢固性，并且不影响可折弯部16的折弯效果。
具体到图16，另一种可选的实施方式中，有机硅胶体40还包括第二硅胶体44，第二硅胶体44位于一对第一硅胶体42之间，第二硅胶体44的数量为多个，多个第二硅胶体44呈阵列排布。多个阵列排布的第二硅胶体44可以进一步的提高可非折弯部和可折弯连接件26的连接牢固性，并且不影响可折弯部16的折弯效果。
请参阅图17，本申请实施例还提供一种柔性显示设备的制作方法，用于制作本申请实施例提供的柔性显示设备。具体的，柔性显示设备的制作方法至少包括以下步骤：
S101、在第一非折弯部和第二非折弯部上贴合无基材双面胶。
一种实施方式中，无基材双面胶为光学胶。
S102、在第一非折弯部和第二非折弯部上涂覆热熔胶，热熔胶位于无基材双面胶的外侧。
S103、将第一承载件压合于第一非折弯部上，使第一承载件固定连接第一 非折弯部，将第二承载件压合于第二非折弯部上，使第二承载件固定连接第二非折弯部。
一种实施方式中，该制作方法还包括，在可折弯部上涂覆有机硅胶，将可折弯连接件压合于可折弯部上，使可折弯连接件固定连接可折弯部。
粘接层使第一非折弯部与第一承载件固定连接、第二非折弯部与第二承载件固定连接，第一承载件与第二承载件相对转动时柔性显示屏在可折弯部位置发生折弯，无基材双面胶具有较好的贴合平整性，使第一非折弯部和第二非折弯部的表面平整无气泡，热熔胶具有较强的粘性，热熔胶贴合于无基材双面的外侧以提高第一非折弯部与第一承载件、第二非折弯部与第二承载件的连接强度，避免柔性显示屏在折叠时发生蠕动，从而既保证了贴合平整性，又具有较高的粘贴强度，提高了柔性显示屏与承载体的粘贴效果。
需要理解的是，在本申请的实施方式的描述中，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请的实施方式和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的实施方式的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的实施方式的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的实施方式的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请的实施方式中的具体含义。
在本申请的实施方式中，除非另有明确的规定和限定，第一特征在第二特 征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度小于第二特征。
上文的公开提供了许多不同的实施方式或例子用来实现本申请的实施方式的不同结构。为了简化本申请的实施方式的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请的实施方式可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请的实施方式提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”或“一些示例”等的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易的想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (20)

  1. 一种柔性显示设备，其特征在于，包括承载体、柔性显示屏及粘接层，所述承载体包括第一承载件、第二承载件及连接于所述第一承载件与所述第二承载件之间的可折弯连接件，所述第一承载件和所述第二承载件经所述可折弯连接件转动连接，所述柔性显示屏包括相对设置的第一非折弯部、第二非折弯部及连接于所述第一非折弯部和所述第二非折弯部之间的可折弯部，所述粘接层粘贴于所述第一非折弯部与所述第一承载件之间，及所述第二非折弯部与所述第二承载件之间，以使所述可折弯部随所述第一承载件和所述第二承载件的相对转动而折弯，
    其中，所述粘接层包括无基材双面胶和热熔胶体，所述热熔胶体位于所述无基材双面胶的外侧。
  2. 根据权利要求1所述的柔性显示设备，其特征在于，所述柔性显示屏包括与显示面相背设置的背面，所述背面包括对应所述第一非折弯部或所述第二非折弯部的非折弯区域，所述粘接层位于所述非折弯区域上，所述热熔胶体在所述背面的正投影位于所述非折弯区域的边缘。
  3. 根据权利要求2所述的柔性显示设备，其特征在于，所述热熔胶体包括第一热熔胶体，所述第一热熔胶体沿第一方向延伸，所述第一热熔胶体的数量为两个，两个所述第一热熔胶体分别位于所述无基材双面胶在第二方向上的两侧，
    其中，所述第一方向为所述第一非折弯部、所述可折弯部、所述第二非折弯部依次连接的方向，所述第二方向垂直于所述第一方向。
  4. 根据权利要求3所述的柔性显示设备，其特征在于，所述第一热熔胶体包括多个第一热熔胶段，多个所述第一热熔胶段沿所述第一方向间隔排列。
  5. 根据权利要求4所述的柔性显示设备，其特征在于，每个所述第一热熔胶段在所述非折弯区域的正投影的尺寸相同。
  6. 根据权利要求4所述的柔性显示设备，其特征在于，沿背离所述可折弯部的方向，相邻的所述第一热熔胶段在所述非折弯区域的正投影的尺寸依次增大。
  7. 根据权利要求3所述的柔性显示设备，其特征在于，所述热熔胶体还包括第二热熔胶体，所述第二热熔胶体位于所述无基材双面胶背离所述可折弯部的一侧，并且所述第二热熔胶体沿所述第二方向延伸。
  8. 根据权利要求7所述的柔性显示设备，其特征在于，所述第二热熔胶体包括多个第二热熔胶段，多个所述第二热熔胶段沿所述第二方向间隔排列。
  9. 根据权利要求8所述的柔性显示设备，其特征在于，每个所述第二热熔胶段在所述非折弯区域的正投影的尺寸相同。
  10. 根据权利要求2所述的柔性显示设备，其特征在于，所述热熔胶体包括第一热熔胶体，所述第一热熔胶体位于所述无基材双面胶背离所述可折弯部的一侧，并且所述第一热熔胶体的延伸方向垂直于所述第一非折弯部、所述可折弯部、所述第二非折弯部依次连接的方向。
  11. 根据权利要求1所述的柔性显示设备，其特征在于，所述可折弯连接件和所述可折弯部之间设有有机硅胶体，所述可折弯部通过所述有机硅胶体粘贴于所述可折弯连接件。
  12. 根据权利要求11所述的柔性显示设备，其特征在于，所述柔性显示屏包括与显示面相背设置的背面，所述背面包括对应所述可折弯部的可折弯区域，所述有机硅胶体包括第一硅胶体，所述第一硅胶体位于所述可折弯区域上，所述第一硅胶体在所述背面的正投影位于所述可折弯区域的边缘，并且所述第一硅胶体沿第一方向延伸，
    其中，所述第一方向为所述第一非折弯部、所述可折弯部、所述第二非折弯部依次连接的方向。
  13. 根据权利要求12所述的柔性显示设备，其特征在于，所述第一硅胶体包括多个第一硅胶段，多个所述第一硅胶段沿所述第一方向间隔排列。
  14. 根据权利要求13所述的柔性显示设备，其特征在于，每个所述第一硅胶段在所述可折弯区域的正投影的尺寸相同。
  15. 根据权利要求13所述的柔性显示设备，其特征在于，沿背离所述可折弯部的方向，相邻的所述第一硅胶段在所述可折弯区域的正投影的尺寸依次增大。
  16. 根据权利要求12所述的柔性显示设备，其特征在于，所述有机硅胶体 还包括第二硅胶体，所述第二硅胶体位于一对所述第一硅胶体之间，所述第二硅胶体的数量为多个，多个所述第二硅胶体沿第二方向间隔排列，
    其中，所述第二方向垂直于所述第一方向。
  17. 根据权利要求12所述的柔性显示设备，其特征在于，所述有机硅胶体还包括第二硅胶体，所述第二硅胶体位于一对所述第一硅胶体之间，所述第二硅胶体的数量为多个，多个所述第二硅胶体呈阵列排布。
  18. 根据权利要求1所述的柔性显示设备，其特征在于，所述无基材双面胶为光学胶。
  19. 一种柔性显示设备的制作方法，所述柔性显示设备包括柔性显示屏和承载体，其中，所述柔性显示屏包括第一非折弯部、第二非折弯部及位于所述第一非折弯部与所述第二非折弯部之间的可折弯部；所述承载体包括第一承载件、第二承载件及连接于所述第一承载件与所述第二承载件之间的可折弯连接件，其特征在于，所述制作方法包括：
    在所述第一非折弯部和所述第二非折弯部上贴合无基材双面胶；
    在所述第一非折弯部和所述第二非折弯部上涂覆热熔胶，所述热熔胶位于所述无基材双面胶的外侧；
    将所述第一承载件压合于所述第一非折弯部上，使所述第一承载件固定连接所述第一非折弯部，将所述第二承载件压合于所述第二非折弯部上，使所述第二承载件固定连接所述第二非折弯部。
  20. 根据权利要求19所述的柔性显示设备的制作方法，其特征在于，所述制作方法还包括，
    在所述可折弯部上涂覆有机硅胶，将所述可折弯连接件压合于所述可折弯部上，使所述可折弯连接件固定连接所述可折弯部。
PCT/CN2018/122693 2018-12-21 2018-12-21 柔性显示设备及柔性显示设备的制作方法 Ceased WO2020124560A1 (zh)

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