WO2021007811A1 - Appareil d'affichage flexible, dispositif électronique et procédé de fabrication de d'appareil d'affichage flexible - Google Patents

Appareil d'affichage flexible, dispositif électronique et procédé de fabrication de d'appareil d'affichage flexible Download PDF

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Publication number
WO2021007811A1
WO2021007811A1 PCT/CN2019/096378 CN2019096378W WO2021007811A1 WO 2021007811 A1 WO2021007811 A1 WO 2021007811A1 CN 2019096378 W CN2019096378 W CN 2019096378W WO 2021007811 A1 WO2021007811 A1 WO 2021007811A1
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WO
WIPO (PCT)
Prior art keywords
elastic
flexible screen
area
gel
flexible
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Application number
PCT/CN2019/096378
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English (en)
Chinese (zh)
Inventor
丁有翔
Original Assignee
深圳市柔宇科技有限公司
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Filing date
Publication date
Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to PCT/CN2019/096378 priority Critical patent/WO2021007811A1/fr
Priority to CN201980090102.8A priority patent/CN113366557A/zh
Publication of WO2021007811A1 publication Critical patent/WO2021007811A1/fr

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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

  • This application relates to the field of display devices, and in particular to a flexible display device, an electronic device provided with the flexible display device, and a manufacturing method of the flexible display device.
  • foldable electronic devices With the development of flexible screens, foldable electronic devices have appeared in the market.
  • the existing foldable electronic devices generally realize the bending of the flexible screen through hinges.
  • the flexible screen and the hinge will relatively slide and rub against each other, which may easily cause damage to the flexible screen, thereby affecting the function of the flexible screen.
  • a support sheet is generally provided on the back of the bendable area of the flexible screen to prevent the flexible screen from being worn out.
  • the support sheet and the flexible screen are slidingly fitted to facilitate the flexible screen. Bend or flatten.
  • the support sheet and the flexible screen are slidingly attached, it means that there is a gap area between the support sheet and the flexible screen.
  • the flexible screen is in a flat state, the flexible screen is in a suspended state in the gap area, which is easy to produce
  • the slight depressions make the flexible screen uneven and give users a bad visual experience.
  • the flexible screen is bent or flattened, the flexible screen is subject to external force and is easily separated from the support sheet and arched, resulting in flexibility The screen display is invalid or damaged.
  • This application provides a flexible display device that can prevent the flexible screen from being recessed in the gap area and can prevent the flexible screen from being separated from the support sheet, an electronic device provided with the flexible display device, and a manufacturing method of the flexible display device.
  • a flexible display device including a support sheet and a flexible screen, the flexible screen including a bendable area and a first non-bending area on both sides of the bendable area and The second non-bending area, the support sheet supports the bendable area and at least part of the first non-bending area, and a gel is arranged between the support sheet and at least part of the first non-bending area Layer; an elastic gel is provided between the support sheet and the bendable area; when the flexible screen is in an unfolded state, the thickness of the gel layer and the elastic gel are both the first thickness.
  • the housing includes a first frame, a second frame, and connected to the first frame and the second frame
  • the flexible display device is arranged on the first frame, the second frame and the bendable device;
  • the flexible display device includes a support sheet and a flexible screen,
  • the flexible screen includes The bendable area and the first non-bending area and the second non-bending area located on both sides of the bendable area, wherein the support sheet supports the bendable area and at least part of the first non-bending area
  • a colloid layer is provided between the support sheet and at least part of the first non-bending area; an elastic colloid is provided between the support sheet and the bendable area; when the flexible screen is in In the unfolded state, the thickness of the gel layer and the elastic gel are both the first thickness.
  • the flexible display device includes a flexible screen and a supporting sheet.
  • the flexible screen includes a bendable area and first The non-bending area and the second non-bending area, the support sheet supports the bendable area and at least a part of the first non-bending area, and the manufacturing method includes the steps; A gel layer having a first thickness is arranged between the first non-bending area; and an elastic gel having a first thickness is arranged in the gap area formed between the support sheet and the bendable area, so The elastic glue is arranged on the edge areas of the opposite sides of the gap area, and is cured by pressing to bond the flexible screen and the supporting sheet.
  • an elastic colloid is arranged between the bendable area of the flexible screen of the flexible display device and the support sheet.
  • the elastic colloid can support the bendable area of the flexible screen , To prevent the flexible screen from being sunken and keep the entire flexible screen flat; when the flexible display device is bent or flattened, the elastic colloid can be stretched and deformed to provide sliding compensation for the relative sliding of the flexible screen and the support sheet, and at the same time, the flexible screen
  • the elastic pulling force drawn to the support sheet keeps the flexible screen and the support sheet bonded without separation, thereby preventing the flexible screen from displaying failure or damage.
  • FIG. 1 is a schematic diagram of the three-dimensional structure of the electronic device in the first embodiment of the present application.
  • FIG. 2 is a schematic diagram of the front structure of the electronic device in FIG. 1.
  • Fig. 3 is a schematic partial cross-sectional view along the line III-III in Fig. 1.
  • Fig. 4 is a schematic cross-sectional view taken along the line IV-IV in Fig. 1.
  • Fig. 5 is a schematic cross-sectional view of the electronic device in the second embodiment of the present application.
  • Fig. 6 is a schematic cross-sectional view of an electronic device in a third embodiment of the present application.
  • Fig. 7 is a schematic cross-sectional view of an electronic device in a fourth embodiment of the present application.
  • FIG. 8 is a schematic cross-sectional view of the electronic device in the fifth embodiment of the present application.
  • FIG. 9 is a schematic diagram of the front structure of the electronic device in the sixth embodiment of the present application.
  • FIG. 10 is a schematic cross-sectional view of the electronic device in FIG. 9.
  • FIG. 11 is a schematic diagram of the front structure of the electronic device in the seventh embodiment of the present application.
  • Fig. 12 is a schematic cross-sectional view of the electronic device in Fig. 11.
  • FIG. 13 is a schematic cross-sectional view of an electronic device in an eighth embodiment of the present application.
  • FIG. 14 is a flowchart of a manufacturing method of the flexible display device of the present application.
  • the electronic device 100 provided by the first embodiment of the present application includes a housing 20 and a flexible display device 30.
  • the housing 20 includes a first frame 21 and a second frame. 23 and a bendable device 25 connected between the first frame 21 and the second frame 23, the flexible display device 30 is disposed on the first frame 21 and the second frame 23 and the front face of the bendable device 25.
  • the flexible display device 30 includes a supporting sheet 31, two connecting sheets 32 respectively connected to both sides of the supporting sheet 31, and a front surface of the supporting sheet 31 and the two connecting sheets 32.
  • the flexible screen 33 includes a screen body 332 and a protective layer 334 laminated on the side of the screen body 332 facing the support sheet 31.
  • the protective layer 334 is fixedly attached to the back of the screen body 332.
  • the flexible screen 33 includes a bendable area 331 corresponding to the bendable device 25 and a first non-bending area 333 and a second non-bending area 335 located on opposite sides of the bendable area 331.
  • the supporting sheet 31 supports the bendable area 331 and at least part of the first non-bending area 333, and the connecting sheet 32 supports the portion of the flexible screen 33 that is not supported by the supporting sheet 31.
  • a first gel layer 40 is provided between the support sheet 31 and at least part of the first non-bending area 333, and an elastic gel 50 is provided between the support sheet 31 and the bendable area 331.
  • the first gel layer 40 and the elastic gel 50 are both disposed between the protective layer 334 and the supporting sheet 31.
  • the thicknesses of the elastic gel 50 and the first gel layer 40 are both the first thickness, and the elastic gel 50 can support the bendable area 331 so that The flexible screen 33 remains flat; when the flexible screen 33 is bent or flattened, the elastic gel 50 is stretched and deformed, and the thickness of the elastic gel 50 is reduced to provide the flexible screen 33 and the support
  • the sliding compensation of the relative sliding of the sheet 31, the elastic colloid 50 can also generate an elastic pulling force that pulls the flexible screen 33 toward the support sheet 31, so that the flexible screen 33 and the support sheet 31 remain bonded to each other. not separated.
  • the front surface refers to the surface facing the light emitting surface of the flexible screen 33
  • the back surface refers to the surface facing away from the light emitting surface of the flexible screen 33.
  • the electronic device 100 is a mobile phone; the bendable device 25 is a hinge; the supporting sheet 31 is a bendable thin steel sheet; and the connecting sheet 32 is a plastic sheet.
  • the electronic device 100 may be, but not limited to, a radio phone, a pager, a Web browser, a notebook, a calendar, and/or a PDA with a global positioning system (GPS) receiver, etc.;
  • the bending device 25 may be other types of rotating shaft components;
  • the supporting sheet 31 may be a liquid metal sheet or a polyester film sheet;
  • the connecting sheet 32 may be a rubber sheet or a silicone sheet or the like.
  • the supporting sheet 31 and the connecting sheet 32 may be connected as a whole by injection molding, or may be connected as a whole by bonding, screwing, or the like.
  • the supporting piece 31 and the connecting piece 32 are connected as a whole by injection molding to simplify the supporting mechanism formed by the supporting piece 31 and the two connecting pieces 32, so that the The flexible display device 30 is lighter and thinner, and the electronic device 100 will also be lighter and thinner, which is convenient for users to carry and use.
  • the supporting sheet 31 supports the bendable area 331 and a part of the first non-bendable area 333 adjacent to the bendable area 331.
  • a first gel layer 40 having a first thickness is provided between the supporting sheet 31 and a part of the first non-bending area 333 on a side adjacent to the bendable area 331, and the supporting sheet 31 is
  • An elastic gel 50 (not shown in the figure) having a first thickness is arranged between the bendable regions 331.
  • the elastic glue 50 is an elastic glue formed by pressing and curing of organic silica gel water or OCA optical glue, and is used for bonding the flexible screen 33 and the supporting sheet 31.
  • the elastic colloid 50 is formed by hydro-compression curing of organic silica gel.
  • the first glue layer 40 can be a double-sided glue layer, or can be the same elastic glue layer as the elastic glue 50.
  • the first colloid layer 40 is the same elastic colloid layer as the elastic colloid 50, so that the first colloid layer 40 and the elastic colloid 50 can be integrally arranged to have better
  • the flexible screen 33 is bent or flattened, the flexible screen 33 and the supporting sheet 31 slide relatively, and the first gel layer 40 and the elastic gel 50 are not easily separated.
  • the bonding between the flexible screen 33 and the supporting sheet 31 is firm.
  • the supporting sheet 31 may simultaneously support the bendable area 331 of the flexible screen 33 and the entire area of the first non-bending area 333.
  • first non-bending area 333 and the second non-bending area 335 are relative terms, that is to say, in other embodiments, the supporting sheet 31 may simultaneously support all The bendable area 331 of the flexible screen 33 and at least a part of the second non-bending area 335, a first thickness with a first thickness is provided between the supporting sheet 31 and at least a part of the second non-bending area 335
  • a colloidal layer 40 has the same function as the previous embodiment, and will not be repeated here.
  • the supporting sheet 31 can simultaneously support the bendable area 331 of the flexible screen 33, at least part of the first non-bending area 333, and at least part of the second non-bending area 335. Therefore, the first gel layer 40 provided on the side of the first bending region 333 and the second bending region 335 adjacent to the bendable region 331 can be integrated with the elastic gel 50, Therefore, the bonding effect between the flexible screen 33 and the supporting sheet 31 is better.
  • the second glue layer 45 can be a double-sided glue layer, or can be the same elastic glue layer as the elastic glue 50.
  • the second gel layer 45 is the same elastic gel layer as the elastic gel 50. Therefore, in this embodiment, the first colloid layer 40, the second colloid layer 45, and the elastic colloid 50 are all organosilicone having a first thickness.
  • the first thickness may be any value from 0.05 mm to 0.15 mm. In this embodiment, the first thickness is preferably 0.1 mm.
  • the first thickness refers to the thickness of the first gel layer 40, the second gel layer 45 or the elastic gel 50 when the flexible screen 33 is in a flat state; it is understandable Yes, during the bending or flattening process of the flexible screen 33, the thickness of the elastic colloid 50 will decrease due to stretching, and the thickness of the first colloid layer 40 and the second colloid layer 45 will be substantially different. change.
  • the elastic gel 50 is arranged between the bendable area 331 of the flexible screen 33 and the support sheet 31.
  • the thickness of the elastic gel 50 and the setting The thickness of the colloid layer on the back of the non-bending area of the flexible screen 33 is the same, and the elastic colloid 50 can support the bendable area 331 to prevent the flexible screen 33 from being depressed and keep the entire flexible screen 33 flat .
  • the elastic gel 50 can be stretched and deformed to provide the flexible screen 33 and the supporting sheet 31 relatively sliding Sliding compensation, while generating an elastic pulling force that pulls the flexible screen 33 toward the supporting sheet 31, so that the flexible screen 33 and the supporting sheet 31 remain bonded without separation, thereby preventing the flexible screen 33 from displaying Failure or damage.
  • the elastic glue 50 is equivalent to an elastic glue layer.
  • the elastic glue 50 is not easy to When elastic deformation occurs, it is difficult for the flexible screen 33 to slide relative to the supporting sheet 31.
  • the flexible screen 33 is bent or flattened, the flexible screen 33 is easily damaged by pulling. Therefore, the elastic colloid 50 can only be arranged in a part of the gap area between the bendable area 331 of the flexible screen 33 and the support sheet 31, so that the elastic gel 50 can be elastically deformed relatively easily.
  • the elastic gel 50 includes two first elastic gels 51 having a first thickness, and the two first elastic gels 51 are respectively disposed on the support Edge regions on opposite sides of the gap region 337 between the sheet 31 and the bendable region 331.
  • the first elastic glue 51 can support the The left and right sides of the bendable area 331 of the flexible screen 33, and the middle part of the bendable area 331 can be straightened to both sides, so that the flexible screen 33 can also be kept flat in the bendable area 331 .
  • the first elastic glue 51 is a strip of glue, and the first elastic glue 51 extends in a direction perpendicular to the bending axis of the flexible screen 33.
  • the direction of the bending axis of the flexible screen 33 is the width direction of the flexible screen 33, that is, the first elastic gel 51 extends along the length direction of the flexible screen 33.
  • the protective layer 334 can prevent the back of the flexible screen 33 from directly contacting the supporting sheet 31 and being worn away.
  • the width of the support sheet 31 is equal to the width of the protective layer 334, that is, the two opposite outer sides of the support sheet 31 are flush with the two opposite outer sides of the protective layer 334, respectively.
  • the protective layer 334 is a liquid metal sheet, and the liquid metal sheet is fixedly attached to the back of the screen 332.
  • liquid metal refers to heating the alloy to a molten state, and then cooling it at an ultra-fast cooling rate, so that the alloy crystal lattice will be solidified before the orderly arrangement of the crystal lattice, because it is in an amorphous state, like glass, so Also known as amorphous alloy, liquid metal or metallic glass.
  • the characteristics of liquid metal are long-range disorder (short-range order), metastable state, isotropic physical properties to a certain extent, no exact melting point, glass transition temperature, etc. It has the characteristics of solid, metal, and glass. Under certain conditions, it has high strength, high hardness, plasticity, heat conduction and wear resistance.
  • the liquid metal referred to in the present invention is substantially solid at room temperature, but some of its properties are close to liquid, so it is called liquid metal.
  • the protective layer 334 may be a wear-resistant plastic sheet or a wear-resistant rubber sheet fixedly attached to the back of the screen 332.
  • the width of the support sheet 31 may also be greater than the width of the protective layer 334, so as to better support the flexible screen 33 and more conveniently stack the flexible screen 33 on the support ⁇ 31 ⁇ .
  • the screen 332 includes a flexible screen 3321, a cover 3323 laminated on the front of the flexible screen 3321, and a light-shielding vinyl layer 3325 laminated on the back of the flexible screen 3321.
  • the flexible screen 3321 is the main body for displaying images.
  • the protective layer 334 is fixedly attached to the side of the light-shielding vinyl layer 3325 facing away from the flexible screen 3321, that is, the protective layer 334 is fixedly attached to the back of the light-shielding vinyl layer 3325.
  • the width of the cover 3323 is greater than the width of the flexible screen 3321, that is, the left and right outer sides of the cover 3323 respectively extend beyond the left and right outer sides of the flexible screen 3321.
  • the light-shielding vinyl layer 3325 has the same width as the flexible screen 3321.
  • the width of the flexible screen 3321 is smaller than the width of the cover 3323 and is retracted relative to the cover 3323, which is beneficial for the cover 3323 to better protect the flexible screen 3321;
  • the width of the protective layer 334 is the same as the width of the flexible screen 3321.
  • the width of the protective layer 334 may also be greater than the width of the flexible screen 3321 and extend relative to the flexible screen 3321, which is beneficial for the protective layer 334 to better protect the flexible screen. Board 3321.
  • a first gel layer 40 with a first thickness is provided on the front surface of the support sheet 31 corresponding to the first non-bending area 333 adjacent to the bendable area 331. ; Secondly, on the front surface of the support sheet 31 corresponding to the bendable area 331 on the opposite left and right sides of the area along the length of the flexible screen 33 respectively dotted with the first thickness of the first elastic gel 51; Then the flexible screen 33 is laminated on the support sheet 31, so that the back of the protective layer 334 is pasted on the first colloidal layer 40 and the first elastic colloid 51; finally cured by pressing The first gel layer 40 and the first elastic gel 51 are sufficient.
  • the first elastic glue 51 can seal the gap area 337 formed between the bendable area 331 of the flexible screen 33 and the support sheet 31, and prevent dust from entering the flexible screen 33 and the supporting sheet 31.
  • the first elastic glue 51 can keep the support sheet 31 and the protective layer 334 bonded at all times, thereby preventing the support sheet 31 from being separated from the flexible screen 33.
  • the first colloid layer 40 and the first elastic colloid 51 may be set on the left and right sides of the back of the protective layer 334 first, and then the flexible screen 33 is laminated On the supporting sheet 31, the final pressing and curing process can achieve the same effect.
  • the order in which the first gel layer 40 and the first elastic gel 51 are arranged can be exchanged, that is, the first elastic gel 51 is set first, then the first gel layer 40 is set, and then Laminating the flexible screen 33 on the supporting sheet 31, and finally pressing and curing, can achieve the same effect.
  • the second gel layer 45 and the elastic gel 50 are the same elastic gel layer.
  • the first gel layer 40 and the second gel layer 45 are the same. The dispensing process can be performed simultaneously, so I won’t go into details here.
  • FIG. 5 is a schematic cross-sectional view of the electronic device in the second embodiment of the present application.
  • the structure of the electronic device provided by the second embodiment of the present application is similar to that of the first embodiment, except that: in the second embodiment, the side of the support sheet 31 facing the flexible screen 33 corresponds to each A first groove 311 is opened at a position of the first elastic glue 51, each of the first grooves 311 extends along the length of the flexible screen 33, and each of the first elastic glues 51 is partially received in In the corresponding first groove 311.
  • the width of the first groove 311 is smaller than the width of the first elastic gel 51.
  • the width of the first groove 311 is equal to the width of the first elastic gel 51.
  • the cross-section of the first groove 311 is rectangular, and the first groove 311 can increase the contact area between the first elastic gel 51 and the support sheet 31, so that the first The adhesion of an elastic glue 51 to the supporting sheet 31 and the protective layer 334 is stronger, and the dustproof effect is better.
  • the cross section of the first groove 311 may be any shape such as a V shape, a circular arc shape, a trapezoid shape, or an irregular pattern.
  • the side of the support sheet 31 facing the flexible screen 33 may only define one first groove 311 corresponding to one of the first elastic gels 51.
  • FIG. 6 is a schematic cross-sectional view of an electronic device in a third embodiment of the present application.
  • the structure of the electronic device provided in the third embodiment of the present application is similar to that of the first embodiment, except that: in the third embodiment, the side of the flexible screen 33 facing the support sheet 31 corresponds to each A second groove 3342 is opened at the position of the first elastic rubber body 51. Specifically, a side of the protective layer 334 facing the supporting sheet 31 is opened at the position of each first elastic rubber body 51.
  • the second grooves 3342, each of the second grooves 3342 extend along the length of the flexible screen 33, and each of the first elastic gels 51 is partially received in the corresponding second groove 3342 .
  • the width of the second groove 3342 is smaller than the width of the first elastic gel 51.
  • the width of the second groove 3342 is equal to the width of the first elastic gel 51.
  • the cross section of the second groove 3342 is rectangular, and the second groove 3342 can increase the contact area between the first elastic gel 51 and the protective layer 334, so that the first The adhesion of an elastic glue 51 to the supporting sheet 31 and the protective layer 334 is stronger, and the dustproof effect is better.
  • the cross-section of the second groove 3342 may have any shape such as a V shape, a circular arc shape, a trapezoid shape, or an irregular pattern.
  • the side of the protective layer 341 facing the supporting sheet 31 may only define a second groove 3342 corresponding to one of the first elastic gels 51.
  • FIG. 7 is a schematic cross-sectional view of an electronic device in a fourth embodiment of the present application.
  • the structure of the electronic device provided by the fourth embodiment of the present application is similar to that of the first embodiment, except that: in the fourth embodiment, the side of the support sheet 31 facing the flexible screen 33 corresponds to each A first groove 311 is opened in a position of the first elastic rubber body 51, and a second groove 311 is defined on the side of the protective layer 334 facing the supporting sheet 31 corresponding to the position of each first elastic rubber body 51.
  • the width of the first groove 311 and the second groove 3342 are the same.
  • the widths of the first groove 311 and the second groove 3342 are smaller than the width of the first elastic gel 51.
  • the first groove 311 and the second groove 3342 can increase the contact area of the first elastic gel 51 with the protective layer 334 and the support sheet 31, so that the The adhesion of the first elastic glue 51 to the supporting sheet 31 and the protective layer 334 is stronger, and the dustproof effect is better.
  • the first groove 311 and the second groove 3342 when the width of the first groove 311 and the second groove 3342 is smaller than the width of the first elastic gel 51, the first groove 311 and the second groove The 3342 can also be staggered to form a stepped connecting portion, and each of the first elastic gels 51 is partially contained in the stepped connecting portion.
  • the width of the first groove 311 and the second groove 3342 is smaller than the width of the first elastic gel 51
  • the first groove 311 and the second groove The 3342 can also be completely misaligned and not connected, and each of the first elastic gels 51 is partially contained in the first groove 311 and the second groove 3342.
  • the width of the first groove 311 and the second groove 3342 may also be equal to the width of the first elastic gel 51, when the flexible screen 33 is laminated on the support sheet When 31 is up, the first groove 311 and the second groove 3342 completely face each other to form a communicating portion, and each of the first elastic gels 51 is partially contained in the communicating portion.
  • FIG. 8 is a schematic cross-sectional view of an electronic device in a fifth embodiment of the present application.
  • the structure of the electronic device provided by the fifth embodiment of the present application is similar to that of the fourth embodiment, except that in the fifth embodiment, the widths of the first groove 311 and the second groove 3342 are Different, the width of the first groove 311 is smaller than the width of the second groove 3342.
  • the first groove 311 completely corresponds to the The second groove 3342, the first groove 311 and the second groove 3342 form a T-shaped communicating portion, and each of the first elastic rubber bodies 51 is partially received in the T-shaped communicating portion.
  • the width of the second groove 3342 is smaller than the width of the first elastic gel 51.
  • the first groove 311 and the second groove 3342 may also be staggered to form one The step-shaped connecting portion, each of the first elastic gels 51 is partially contained in the step-shaped connecting portion.
  • the first groove 311 and the second groove 3342 may also be completely misaligned and not connected.
  • Each of the first elastic gels 51 is partially received in the first groove 311 and the second groove 3342.
  • the width of the first groove 311 may be greater than the width of the second groove 3342 but less than The width of the first elastic rubber body 51; similarly, the first groove 311 and the second groove 3342 may be connected or not, which will not be repeated here.
  • the width of the larger groove may also be equal to that of the first elastic gel 51.
  • the first groove 311 is connected to the second groove 3342, and each of the first elastic gels 51 is partially accommodated in the corresponding connected Inside the first groove 311 and the second groove 3342.
  • FIG. 9 is a schematic diagram of the front structure of the electronic device in the sixth embodiment of the present application
  • FIG. 10 is a schematic cross-sectional view of the electronic device in FIG. 9.
  • the structure of the electronic device provided in the sixth embodiment of the present application is similar to the structure of the first embodiment, except that: in the sixth embodiment, a second elastic gel 52 is also provided in the middle area of the gap region 337 Specifically, the second elastic gel 52 is disposed in the middle area of the area corresponding to the bendable area 331 between the back of the protective layer 334 and the front of the support sheet 31, that is, the second The elastic gel 52 is disposed between the two first elastic gels 51.
  • the second elastic colloid 52 is a plurality of dot colloids distributed in a matrix. Specifically, the dot colloids located in the same row are arranged along the width direction of the flexible screen 33, and are located in the same column. The dotted colloids are arranged along the length direction of the flexible screen 33, and two adjacent dotted colloids are spaced apart from each other.
  • the dot-shaped colloid is circular.
  • a number of the dotted colloids can save the amount of glue; in addition, the dotted colloids are separated from each other, and the failure of any dotted colloid will not involve the dotted colloids in other positions, so that the supporting sheet 31 and the The adhesion of the protective layer 334 is stronger, and the dot-like glue makes the bendable area 331 not completely fit the support sheet 31, so the flexible screen 33 and the support sheet 31 can also face each other. Sliding prevents the flexible screen 33 from being pulled and damaged when it is bent or flattened.
  • the dot-shaped colloid may be in any shape such as a rectangle, a diamond, a polygon, or an irregular figure.
  • the second elastic gel 52 is a plurality of strips of gel extending in a direction perpendicular to the bending axis of the flexible screen 33 and spaced apart along the direction of the bending axis of the flexible screen 33, That is, a plurality of the strip-shaped glue bodies extend along the length direction of the flexible screen 33 and are arranged at intervals along the width direction of the flexible screen 33, and the strip-shaped glue bodies are similar to the first elastic glue body 51.
  • the side of the support sheet 31 facing the flexible screen 33 and/or the side of the protective layer 334 facing the support sheet 31 may also correspond to each second
  • the elastic glue 52 is provided with a corresponding groove, and the second elastic glue 52 can be partially accommodated in the groove to increase the contact area with the protective layer 334 and the supporting sheet 31, so that the second elastic glue 52
  • the elastic glue 52 adheres to the support sheet 31 and the protective layer 334 more firmly, and prevents the flexible screen 33 from arching or warping in the middle of the bendable area 331 corresponding to the problem.
  • the structure of the groove is similar to the aforementioned first groove 311 and/or the aforementioned second groove 3342, which will not be repeated here.
  • the second elastic glue 52 and the first elastic glue 51 may be cured by the same glue, or cured by different glues.
  • the second elastic gel 52 is the same as the first elastic gel 51, and both are formed by water curing of organic silicone.
  • the first glue layer 40 and the first elastic glue 51 can be spotted first, and then the second elastic glue 52 can be spotted, and then the flexible screen 33 can be laminated on the support sheet 31 , And finally press and cure.
  • the second elastic gel 52 can also be clicked first, then the first gel layer 40 and the first elastic gel 51 can be clicked, and then the flexible screen 33 can be laminated on the support sheet 31. Finally, pressing and curing can achieve the same effect.
  • the glue dispensing process of the first colloidal layer 40 and the second colloidal layer 45 can be performed synchronously, which will not be repeated here.
  • the edge regions on opposite sides of the gap region 337 are provided with two first elastic gels 51, the middle region of which is provided with the second elastic gel 52, and the two first elastic gels 51 It can support the left and right sides of the bendable area 331 of the flexible screen 33, and the second elastic gel 52 can support the middle part of the bendable area 331 of the flexible screen 33, which is beneficial to ensure that the flexible screen 33 The surface is flat in the unfolded state.
  • FIG. 11 is a schematic diagram of the front structure of the electronic device in the seventh embodiment of the present application
  • FIG. 12 is a schematic cross-sectional view of the electronic device in FIG. 11.
  • the structure of the electronic device provided by the seventh embodiment of the present application is similar to the structure of the first embodiment, except that: in the seventh embodiment, two thirds are provided on opposite sides of the flexible display device 30.
  • each of the third elastic glues 53 is a strip-shaped glue extending along the length direction of the outer side of the flexible screen 33, and the two third elastic glues 53 are respectively used for bonding the flexible screen 33 on the two opposite outer sides of the bendable area 331 and the two outer sides of the supporting sheet 31, the third elastic gel 53 can also prevent external dust from entering between the protective layer 334 and the supporting sheet 31 between.
  • the third elastic gel 53 is integrated with the first elastic gel 51. Specifically, the first elastic gel 51 is compressed from opposite sides of the gap area 337. The edges overflow and solidify to form the third elastic gel 53. In other words, when setting the first elastic gel 51, a sufficient amount of glue can be applied, and under the effect of compression, an appropriate amount of glue overflows from the opposite sides of the gap area 337, and then it is naturally cured. Or auxiliary blowing and curing form the third elastic gel 53.
  • the first elastic glue 51 and the third elastic glue 53 are integrated and the same glue, and the first elastic glue 51 is used to bond the flexible screen 33 and the support sheet 31 Located on the inner surfaces of the opposite side edges of the gap area 337, the third elastic glue 53 is used to bond the flexible screen 33 and the supporting sheet 31 corresponding to the bendable area 331 Two outer sides, so that the bonding between the supporting sheet 31 and the flexible screen 33 is stronger.
  • the third elastic glue 53 may be disposed on the flexible screen 33 on the two opposite outer sides of the bendable area 331 and the support sheet 31 by lateral dispensing. Between the corresponding two outer sides of the bendable area 331, that is, the first elastic gel 51 and the third elastic gel 53 are non-integral, and the third elastic gel 53 and the first elastic gel 51 There is a gap between. Wherein, the third elastic gel 53 and the first elastic gel 51 may be the same or different.
  • the third elastic colloid 53 is made of photosensitive adhesive, that is, after the first elastic colloid 51 is set up and pressed and cured, the third elastic colloid 53 is placed and irradiated by ultraviolet light. The curing is accelerated, and at this time, the photosensitive adhesive is cured into a solid glue with elasticity.
  • the third elastic gel 53 may be dotted on the outer surface of the flexible screen 3321, the outer surface of the light-shielding vinyl layer 3325, the outer surface of the protective layer 334, and the support On the front side of the portion of the sheet 31 that extends beyond the protective layer 334, the third elastic gel 53 has a triangular cross section.
  • the third elastic gel 53 can not only prevent external dust from entering the protective layer 334 and the support sheet 31 In between, it can also prevent external dust or water from entering the screen 332.
  • the cross-section of the third elastic gel 53 can be rectangular, etc., and only the third elastic gel 53 is provided on the outer side of the flexible screen 3321 and the cover.
  • the board 3323 extends beyond the back surface of the part of the screen body 332, the outer side surface of the light-shielding vinyl layer 3325, the outer side surface of the protective layer 334, and the support sheet 31 extends beyond the front surface of the protective layer 334.
  • the flexible screen 33 and/or the supporting sheet 31 can also be provided with corresponding grooves for receiving the first elastic gel 51, which will not be repeated here.
  • FIG. 13 is a schematic cross-sectional view of an electronic device in an eighth embodiment of the present application.
  • the structure of the electronic device provided by the eighth embodiment of the present application is similar to the structure of the seventh embodiment, except that: in the eighth embodiment, the flexible screen 33 is located on two opposite sides of the bendable area 331
  • the side surface and the supporting sheet 31 are respectively provided with corresponding receiving grooves on the corresponding two outer surfaces of the bendable area 331, and the third elastic rubber body 53 is received in the corresponding receiving grooves.
  • the protective layer 334 of the flexible screen 33 is respectively provided with a first receiving groove 3341 with an oblique opening downward on two opposite outer sides of the bendable area 331, and the supporting sheet 31.
  • Two second receiving grooves 312 with an oblique opening upward are respectively opened on the corresponding two outer side surfaces of the bendable area 331.
  • the cross sections of the first receiving groove 3341 and the corresponding second receiving groove 312 are triangular.
  • the third elastic gel 53 is received in the first receiving groove 3441 and the corresponding second receiving groove 312.
  • the receiving groove can increase the contact area of the third elastic gel 53 with the protective layer 334 and the supporting sheet 31, so that the protective layer 334 and the supporting sheet 31 are more adhered.
  • Firm Furthermore, the third elastic gel 53 is accommodated in the receiving groove, so that the third elastic gel 53 does not protrude from the two opposite outer sides of the flexible screen 33, which has a good aesthetics.
  • only the protective layer 334 may be provided with a first housing with an oblique opening downward on two opposite outer sides of the bendable area 331.
  • the grooves 3341 may also be provided with second receiving grooves 312 with an oblique opening on the corresponding two outer sides of the support piece 31 on the bendable area 331 respectively.
  • the cross-sections of the first receiving groove 3441 and the second receiving groove 312 have other shapes such as a rectangle, a circular arc, or an irregular pattern.
  • first receiving groove 3441 and the second receiving groove 312 may also be a plurality of receiving grooves distributed in a zigzag pattern.
  • the flexible screen 33 and/or the supporting sheet 31 can also be provided with a corresponding groove for receiving the first elastic gel 51, which will not be repeated here.
  • the middle area of the gap area 337 can also be provided with a second elastic gel 52, which will not be repeated here.
  • the flexible screen 33 may not include or only include any one or more or all of the light-shielding vinyl layer, the protective layer and the cover.
  • the first elastic gel 51, the second elastic gel 52, and the third elastic gel 53 of the foregoing embodiments are all elastic, so that the support sheet 31 can be pulled when the support sheet 31 slides relative to the flexible screen 33.
  • the first elastic gel 51, the second elastic gel 52 and the third elastic gel 53 will automatically change due to their own elasticity.
  • the contraction deformation returns to the original state without being pulled off.
  • the stretching range of the first elastic gel 51, the second elastic gel 52, and the third elastic gel 53 satisfy It is assumed that when the sliding direction of the supporting sheet 31 relative to the flexible screen 33 is X and the thickness direction of the supporting sheet 31 is Y, when the supporting sheet 31 slides relative to the flexible screen 33, the first elastic The colloid 51, the second elastic colloid 52, and the third elastic colloid 53 are stretched and deformed in a direction inclined with respect to the X and the thickness direction Y.
  • the present application also provides a method for manufacturing a flexible display device
  • the flexible display device includes the flexible screen 33 and the support sheet 31
  • the flexible screen 33 includes a bendable area 331 and located at The first non-bending area 333 and the second non-bending area 335 on both sides of the bendable area 331
  • the support sheet 31 supports the bendable area 331 and at least part of the first non-bending area 333
  • the manufacturing method includes the following steps:
  • a first gel layer 40 having a first thickness is provided between the supporting sheet 31 and at least part of the first non-bending area 333;
  • An elastic gel 50 having a first thickness is arranged in the gap area 337 formed between the support sheet 31 and the bendable area 331, and the elastic gel 50 is disposed on opposite sides of the gap area 337 The edge area is pressed and cured to bond the flexible screen 33 and the supporting sheet 31.
  • the first thickness refers to the thickness of the first gel layer 40 and the elastic gel 50 when the flexible screen 33 is in a flattened state; it can be understood that the flexible screen 33 is bent or flattened. During the process, the thickness of the elastic gel 50 will be reduced due to stretching, and the thickness of the first gel layer 40 will basically remain unchanged.
  • the order of arrangement of the first gel layer 40 and the first elastic gel 51 can be exchanged, that is, the first elastic gel 51 is set first, then the first gel layer 40 is set, and then the first gel layer 40 is pressed and cured. The same effect can be achieved.
  • the first glue layer 40 can be a double-sided glue layer, or can be the same elastic glue layer as the elastic glue 50.
  • the first gel layer 40 is the same elastic gel layer as the elastic gel 50.
  • the flexible screen 33 includes a screen body 332 and a protective layer 334 fixedly attached to the screen body 332 facing the support sheet 31, and the colloidal layer 40 and the elastic colloid 50 are disposed on the protective layer.
  • the layer 334 and the supporting sheet 31 are used to bond the protective layer 334 and the supporting sheet 31.
  • the elastic colloid 50 includes two first elastic colloids 51 respectively disposed at the edge regions on opposite sides of the gap area 337, the first elastic colloid 51 is a strip-shaped colloid, and the first elastic colloid 51 extends in a direction perpendicular to the bending axis of the flexible screen 33, that is, extends along the length direction of the flexible screen 33.
  • the manufacturing method of the flexible display device further includes a step of arranging a second elastic gel 52 in the middle area of the gap area 337.
  • the second elastic colloid 52 is a plurality of dot-shaped colloids distributed in a matrix.
  • the second elastic colloid 52 is a plurality of strips of colloids extending in a direction perpendicular to the bending axis of the flexible screen 33 and along the bending of the flexible screen 33 A number of strips of colloids spaced in the direction of the axis, that is, extend along the length of the flexible screen 33 and are arranged at intervals along the width of the flexible screen 33.
  • the manufacturing method of the flexible display device further includes setting the flexible screen 33 on two opposite outer sides of the bendable area 331 and the supporting sheet 31 on the corresponding two outer sides of the bendable area 331.
  • Each of the third elastic glue bodies 53 is a strip-shaped glue body extending along the length direction of the outer side surface of the flexible screen 33.
  • the third elastic gel 53 is formed by the first elastic gel 51 overflowing from opposite sides of the gap region 337 under compression.
  • the first elastic gel 51 and the third elastic colloid 53 are integrated and the same colloid.
  • the third elastic colloid 53 is formed by point-setting by lateral dispensing, the first elastic colloid 51 and the third elastic colloid 53 are not integrated, and the third elastic colloid There is an interval between 53 and the first elastic gel 51.
  • the flexible screen 33 and/or the supporting sheet 31 may also be correspondingly provided with grooves for accommodating the elastic gel 50.

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

Abstract

La présente invention concerne un appareil d'affichage flexible (30) comprenant une feuille de support (31) et un écran flexible (33). L'écran flexible (33) comprend une région pliable (331), et une première région non pliable (333) ainsi qu'une seconde région non pliable (335) situées de part et d'autre de la région pliable (331). La feuille de support (31) supporte la région pliable (331) et au moins une partie de la première région non pliable (333). Une couche colloïdale (40) est disposée entre la feuille de support (31) et au moins une partie de la première région non pliable (333). Un colloïde élastique (50) est disposé entre la feuille de support (31) et la région pliable (331). Lorsque l'écran flexible (33) est dans un état déplié, l'épaisseur de la couche colloïdale (40) est identique à celle du colloïde élastique (50). Lorsque l'appareil d'affichage flexible (30) est à l'état plat, le colloïde souple (50) est apte à supporter la région pliable (331), empêchant l'écran flexible (33) de devenir bosselé, de telle sorte que l'écran flexible (33) reste plat. Lorsque l'appareil d'affichage flexible (30) est plié ou aplati, le colloïde élastique (50) peut être soumis à une déformation par étirage, et le colloïde élastique (50) génère une force de traction élastique, de telle sorte que l'écran flexible (33) reste collé à la feuille de support (31) sans se séparer.
PCT/CN2019/096378 2019-07-17 2019-07-17 Appareil d'affichage flexible, dispositif électronique et procédé de fabrication de d'appareil d'affichage flexible WO2021007811A1 (fr)

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PCT/CN2019/096378 WO2021007811A1 (fr) 2019-07-17 2019-07-17 Appareil d'affichage flexible, dispositif électronique et procédé de fabrication de d'appareil d'affichage flexible
CN201980090102.8A CN113366557A (zh) 2019-07-17 2019-07-17 柔性显示装置、电子设备及柔性显示装置的制造方法

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PCT/CN2019/096378 WO2021007811A1 (fr) 2019-07-17 2019-07-17 Appareil d'affichage flexible, dispositif électronique et procédé de fabrication de d'appareil d'affichage flexible

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CN113380147A (zh) * 2021-06-17 2021-09-10 云谷（固安）科技有限公司 显示面板、显示面板制备方法及显示装置
CN113506513A (zh) * 2021-06-17 2021-10-15 云谷（固安）科技有限公司 显示面板及其制备方法
CN113766052A (zh) * 2021-10-11 2021-12-07 Oppo广东移动通信有限公司 可折叠的电子设备及其压合组件
CN114401328A (zh) * 2022-01-20 2022-04-26 Oppo广东移动通信有限公司 内折叠柔性屏支撑装置以及可折叠电子设备
CN115171527A (zh) * 2022-06-20 2022-10-11 昆山国显光电有限公司 显示面板的制造方法及显示面板
CN115188266A (zh) * 2022-06-22 2022-10-14 广州国显科技有限公司 显示面板及电子设备
CN115240557A (zh) * 2022-08-02 2022-10-25 昆山国显光电有限公司 显示模组及显示装置
CN115394188A (zh) * 2022-07-20 2022-11-25 合肥维信诺科技有限公司 显示面板及电子设备
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CN115996254A (zh) * 2021-10-20 2023-04-21 荣耀终端有限公司 电子设备

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WO2022253089A1 (fr) * 2021-05-31 2022-12-08 华为技术有限公司 Structure composite, ensemble écran flexible et terminal pliable
CN113506513A (zh) * 2021-06-17 2021-10-15 云谷（固安）科技有限公司 显示面板及其制备方法
CN113380147A (zh) * 2021-06-17 2021-09-10 云谷（固安）科技有限公司 显示面板、显示面板制备方法及显示装置
CN113506513B (zh) * 2021-06-17 2023-03-31 云谷（固安）科技有限公司 显示面板及其制备方法
CN113766052A (zh) * 2021-10-11 2021-12-07 Oppo广东移动通信有限公司 可折叠的电子设备及其压合组件
WO2023060979A1 (fr) * 2021-10-11 2023-04-20 Oppo广东移动通信有限公司 Dispositif électronique pliable et ensemble d'ajustement par pression de celui-ci
CN115996254B (zh) * 2021-10-20 2024-04-05 荣耀终端有限公司 电子设备
CN115996254A (zh) * 2021-10-20 2023-04-21 荣耀终端有限公司 电子设备
CN114401328A (zh) * 2022-01-20 2022-04-26 Oppo广东移动通信有限公司 内折叠柔性屏支撑装置以及可折叠电子设备
CN115171527B (zh) * 2022-06-20 2023-10-27 昆山国显光电有限公司 显示面板的制造方法及显示面板
CN115171527A (zh) * 2022-06-20 2022-10-11 昆山国显光电有限公司 显示面板的制造方法及显示面板
CN115188266A (zh) * 2022-06-22 2022-10-14 广州国显科技有限公司 显示面板及电子设备
CN115188266B (zh) * 2022-06-22 2023-10-24 广州国显科技有限公司 显示面板及电子设备
CN115394188A (zh) * 2022-07-20 2022-11-25 合肥维信诺科技有限公司 显示面板及电子设备
CN115240557A (zh) * 2022-08-02 2022-10-25 昆山国显光电有限公司 显示模组及显示装置

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