WO2024093535A1 - 折叠式电子设备 - Google Patents
折叠式电子设备 Download PDFInfo
- Publication number
- WO2024093535A1 WO2024093535A1 PCT/CN2023/118347 CN2023118347W WO2024093535A1 WO 2024093535 A1 WO2024093535 A1 WO 2024093535A1 CN 2023118347 W CN2023118347 W CN 2023118347W WO 2024093535 A1 WO2024093535 A1 WO 2024093535A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electronic device
- adhesive
- cover plate
- foldable electronic
- frame
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims description 60
- 230000001070 adhesive effect Effects 0.000 claims description 60
- 239000010410 layer Substances 0.000 claims description 54
- 239000012790 adhesive layer Substances 0.000 claims description 40
- 239000004831 Hot glue Substances 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 7
- 239000006260 foam Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 239000004984 smart glass Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000003190 viscoelastic substance Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
- H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
Definitions
- the present application relates to the field of electronic technology, and in particular to a foldable electronic device.
- the embodiment of the present application provides a foldable electronic device.
- the display screen and the first middle frame will not be misaligned. Therefore, no decorative parts need to be provided in the edge area of the foldable electronic device, thereby reducing the thickness of the foldable electronic device, which is conducive to achieving the lightness and thinness of the electronic device.
- the appearance of the foldable electronic device is relatively simple and has a good appearance expression.
- the present application provides a foldable electronic device, comprising:
- a display screen comprising a display function layer and a cover plate which are stacked;
- first middle frame comprising a first support member for supporting the display function layer and a first frame member for supporting the cover plate, the first frame comprising a first connecting portion connected to the first support member and a first frame body connected to the first connecting portion, the first connecting portion being located below the cover plate, and the first frame body being located outside the cover plate;
- the distance between the side surface of the cover plate and the first frame body is smaller than the distance between the side surface of the display function layer and the first frame body, and the cover plate is connected to the first frame body.
- FIG. 1 is a schematic diagram of a first structure of a foldable electronic device provided in an embodiment of the present application.
- FIG. 2 is an enlarged schematic diagram of area A in FIG. 1 .
- FIG. 3 is a schematic diagram of FIG. 2 without adhesive.
- FIG. 4 is a schematic diagram of a second structure of a foldable electronic device provided in an embodiment of the present application.
- Figure 1 is a schematic diagram of the first structure of a foldable electronic device provided in an embodiment of the present application
- Figure 2 is an enlarged schematic diagram of area A in Figure 1.
- the embodiment of the present application provides a foldable electronic device 100, including a display screen 10 and a first middle frame 20.
- the display screen 10 includes a display function layer 11 and a cover plate 12 arranged in a stacked manner;
- the first middle frame 20 includes a first support member 21 for supporting the display function layer 11 and a first frame 22 for supporting the cover plate 12.
- the first frame 22 includes a first connecting portion 222 connected to the first supporting member 21 and a first frame body 221 connected to the first connecting portion 222.
- the first connecting portion 222 is located below the cover plate 12, and the first frame body 221 is located outside the cover plate 12.
- the cover plate 12 can be ultra-thin glass (Ultra Flexible Glass, UFG) of unequal thickness. Compared with traditional flat glass, the thickness of UFG glass in the middle is thinner, which can reduce local stress concentration when the flexible screen is folded and has better anti-bending ability.
- UFG Ultra-thin glass
- the material of the first support member 21 and the material of the first frame 22 may be the same or different. In some embodiments, the material of the first support member 21 and the material of the first frame 22 are both plastic.
- the first frame 22 further includes a snap-fitting portion 223 connected to the first connecting portion 222 .
- a snap-fitting slot 215 is provided on the first supporting member 21 , and the snap-fitting portion 223 is snap-fitted and connected to the snap-fitting slot 215 .
- first frame 22 and the first support member 21 may be connected in other ways, or the first frame 22 and the first support member 21 may be an integral structure, and the two are prepared by an integral molding process (such as an injection molding process).
- the distance between the side of the cover plate 12 and the first frame body 221 is smaller than the distance between the side of the display function layer 11 and the first frame body 221 , and the cover plate 12 is at least connected to the first frame body 221 .
- the distance D between the side of the cover plate 12 and the side of the display function layer 11 is 1.5mm ⁇ 2mm (for example, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, etc.), that is, the edge of the cover plate 12 extends outward by 1.5mm ⁇ 2mm relative to the edge of the display function layer 11.
- the foldable electronic device 100 provided in the embodiment of the present application sets the distance between the side of the cover plate 12 and the first frame body 221 to be greater than the distance between the side of the display function layer 11 and the first frame body 221, that is, the edge of the cover plate 12 extends outward for a distance relative to the edge of the display function layer 11, and the side of the cover plate 12 is connected to the first frame body 221, so that no gap is generated between the display screen 10 and the first frame body 221, thereby avoiding the problem of the display screen 10 and the first middle frame 20 shifting and generating a gap during the folding process of the foldable electronic device 100.
- the edge area of the foldable electronic device 100 does not need to be provided with decorative parts, thereby reducing the thickness of the foldable electronic device 100, which is conducive to realizing the lightness and thinness of the electronic device (the thickness of the whole machine can be reduced by 0.5 mm).
- the appearance of the foldable electronic device 100 is relatively simple and has good appearance expression.
- the display screen 10 may further include a protective film 13, which is disposed on the side of the cover plate 12 away from the display function layer 11, and the top surface of the first frame 221 is higher than the top surface of the protective film 13.
- the protective film 13 can protect the cover plate 12, preventing scratches and cracks from appearing on the surface of the cover plate 12, thereby reducing the light transmittance; in addition, by setting the top surface of the first frame 221 higher than the top surface of the protective film 13, that is, making the top surface of the first frame 221 slightly higher than the top surface of the display screen 10, the first frame 221 can be used to protect the display screen 10 from the side of the display screen 10.
- the material of the protective film 13 may include polyethylene terephthalate (PET), and the protective film 13 may be fixed to the display screen 10 by optically clear adhesive (OCA).
- PET polyethylene terephthalate
- OCA optically clear adhesive
- cover plate 12 and the display function layer 11 may also be fixedly connected by optically transparent adhesive (OCA).
- OCA optically transparent adhesive
- the display function layer 11 may include a polarizer, an OLED (organic light emitting diode) layer, a plastic support film, a pressure-sensitive adhesive layer, and a metal support layer stacked in sequence in the direction from the cover plate 12 to the display function layer 11.
- the OLED layer can play a role in light-emitting display
- the polarizer can be a circular polarizer, which can reduce reflected light, improve contrast, and thus improve the display effect of the display screen 10
- the pressure-sensitive adhesive layer can play a buffering role between the plastic support film and the metal support layer.
- the material of the metal support layer can be stainless steel.
- first frame 221 and the cover plate 12 are spaced apart along a first direction (horizontal direction), and the cover plate 12 and the first frame 221 are connected by an adhesive 40 .
- the adhesive 40 may be a hot melt adhesive.
- the hot melt adhesive When dispensing the adhesive, the hot melt adhesive may be first heated and melted into a fluid, and then the molten fluid of the hot melt adhesive may be dripped or applied between the cover plate 12 and the first frame body 221. In the gap, the hot melt adhesive forms a solidified adhesive layer after cooling, thereby bonding the cover plate 12 and the first frame 221. Since the hot melt adhesive has a good bonding effect, the cover plate 12 and the first frame 221 can be firmly connected together.
- the hot melt adhesive can include at least one of ethylene-vinyl acetate copolymer (EVA) hot melt adhesive, polyester (PES) hot melt adhesive, polyamide (PA) hot melt adhesive, polyolefin hot melt adhesive and polyurethane hot melt adhesive.
- EVA ethylene-vinyl acetate copolymer
- PET polyester
- PA polyamide
- polyolefin hot melt adhesive polyurethane hot melt adhesive
- the adhesive 40 can not only bond the frame and the cover plate 12, but also bond the first connecting portion 222 and the cover plate 12, that is, the adhesive 40 can fix the cover plate 12 from two directions, so that the cover plate 12 is firmly fixed on the first middle frame 20, thereby firmly connecting the display screen 10 and the first middle frame 20.
- the color of the adhesive 40 can be consistent with the color of the first frame 22, for example, the color of the adhesive 40 and the color of the first frame 22 are both black, so that the appearance of the foldable electronic device 100 can be kept simple and the appearance of the foldable electronic device 100 can be improved.
- FIG. 3 is a schematic diagram of FIG. 2 without adhesive.
- the first frame 22 is provided with an adhesive storage tank 30 for accommodating the adhesive 40 , the adhesive storage tank 30 includes a first groove 31 located on the first frame body 221 and a second groove 32 located on the first connecting portion 222 , the first groove 31 is connected to the second groove 32 ; at least a portion of the adhesive 40 is located in the adhesive storage tank 30 .
- the bottom of the first groove 31 and the bottom of the second groove 32 can be perpendicular to each other, or the angle between the bottom of the first groove 31 and the bottom of the second groove 32 can also be an acute angle (greater than 0° and less than 90°), for example, 15°, 30°, 45°, 60°, 75°, 80°, etc.
- first groove 31 and the second groove 32 may both be in a rectangular parallelepiped shape.
- the glue storage amount between the first frame 22 and the cover plate 12 can be increased, and the width and thickness of the adhesive 40 can be increased, thereby improving the adhesion of the adhesive 40 and further improving the connection stability between the first frame 22 and the cover plate 12.
- the orthographic projection of the second groove 32 on the first support member 21 can partially overlap with the orthographic projection of the cover plate 12 on the first support member 21. Since the width of the second groove 32 in the horizontal direction has a certain limiting effect on the width of the adhesive 40 in the horizontal direction, when the second groove 32 partially overlaps with the cover plate 12 in the horizontal direction, the adhesive 40 usually also partially overlaps with the cover plate 12 in the horizontal direction. At this time, the adhesive 40 can bond the bottom of the cover plate 12, that is, the adhesive 40 can play a role of fixing the connection between the bottom surface of the cover plate 12 and the top surface of the first connecting portion 222.
- the orthographic projection of the second groove 32 on the first support member 21 and the display function There is a gap between the orthographic projection of the second groove 32 on the first support member 21 and the orthographic projection of the display function layer 11 on the first support member 21. It should be noted that when there is no gap between the orthographic projection of the second groove 32 on the first support member 21 and the orthographic projection of the display function layer 11 on the first support member 21, it means that the second groove 32 is adjacent to or partially overlaps with the first support member 21 in the horizontal direction.
- the adhesive 40 in the adhesive storage tank 30 will directly contact the display function layer 11 from the side of the display function layer 11, thereby contaminating the display function layer 11, and the impurity ions in the adhesive 40 can easily enter the display function layer 11, thereby affecting the display performance of the display function layer 11; ...
- the adhesive 40 in the adhesive storage tank 30 When there is a partial overlap with the first support member 21 in direction, the adhesive 40 in the adhesive storage tank 30 will directly contact the display function layer 11 from the bottom and side of the display function layer 11, thereby causing contamination to the display function layer 11; in the embodiment of the present application, a gap is set between the orthographic projection of the second groove 32 on the first support member 21 and the orthographic projection of the display function layer 11 on the first support member 21, so as to avoid the problem that the adhesive 40 in the adhesive storage tank 30 contacts the display function layer 11 from the side or bottom of the display function layer 11, thereby avoiding the problem that impurity ions in the adhesive 40 enter the display function layer 11 and thereby reduce the display performance of the display function layer 11.
- the top surface of the first groove 31 is lower than the top surface of the cover plate 12, but higher than the bottom surface of the cover plate 12, so that the top surface of the adhesive 40 can be limited between the top surface and the bottom surface of the cover plate 12. It can be understood that when the top surface of the adhesive 40 is lower than the bottom surface of the cover plate 12, the adhesive 40 cannot fix the side of the cover plate 12, that is, at this time, the adhesive 40 cannot play a fixed connection role between the first frame 221 and the side of the cover plate 12; when the top surface of the adhesive 40 is higher than the top surface of the cover plate 12, the adhesive 40 will overflow to the top surface of the cover plate 12, also That is to say, the adhesive 40 will cover the top surface of the cover plate 12.
- the adhesive 40 Since the adhesive 40 is usually black, it will affect the light transmittance and appearance of the cover plate 12, and the presence of the adhesive 40 will cause the top surface of the cover plate 12 to be uneven.
- the embodiment of the present application limits the top surface of the first groove 31 between the top and bottom surfaces of the cover plate 12, which not only enables the adhesive 40 to fix the connection between the first frame 221 and the side of the cover plate 12, but also avoids the problem that the adhesive 40 overflows to the top surface of the cover plate 12, causing the light transmittance and appearance of the cover plate 12 to be affected.
- the bottom surface of the cover plate 12 and the top surface of the first connection portion 222 are connected via a first adhesive layer 51 .
- the top surface and the bottom surface of any structural member are respectively defined as: the direction from the display function layer 11 to the cover plate 12 is defined as upward, and the direction from the cover plate 12 to the display function layer 11 is defined as downward.
- the direction is downward, the top surface of any structural member refers to the side of the structural member that is arranged upward, and the bottom surface of any structural member refers to the side of the structural member that is arranged downward.
- the first glue layer 51 is arranged on the inner side of the adhesive 40, that is, the first glue layer 51 is used to fix the area on the cover plate 12 extending from the edge of the display screen 10 on the first connecting portion 222 of the first frame 22, so as to further strengthen the connection between the cover plate 12 and the first middle frame 20, thereby improving the connection stability between the display screen 10 and the first middle frame 20, and when the foldable electronic device 100 is bent, it can avoid the cover plate 12 and the first frame 22 from slipping, which causes a gap between the cover plate 12 and the first frame 22.
- the first adhesive layer 51 is a double-sided adhesive tape, which may include foam and adhesive provided on both sides of the foam.
- the thickness of the first adhesive layer 51 is 0.13 mm to 0.15 mm, such as 0.13 mm, 0.14 mm, 0.15 mm, etc. It is understandable that the first adhesive layer 51 not only serves to fix the cover plate 12 and the first frame 22 , but also serves to limit the height of the adhesive when forming the adhesive 40 .
- FIG. 1 it is shown that the bottom surface of the functional layer 11 and the top surface of the first support member 21 are connected via the second adhesive layer 52 .
- the present application can further strengthen the connection between the first middle frame 20 and the display screen 10 by connecting the bottom surface of the display function layer 11 and the top surface of the first support member 21 through the second adhesive layer 52, which is beneficial to further improve the structural stability of the foldable electronic device 100 and avoid the separation of the display screen 10 and the first middle frame 20 during the folding process of the foldable electronic device 100.
- the second adhesive layer 52 is a double-sided adhesive tape, which may include foam and adhesive provided on both sides of the foam.
- the thickness of the second adhesive layer 52 is 0.2 mm to 0.25 mm, such as 0.2 mm, 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, etc.
- the storage modulus of the second adhesive layer 52 is smaller than the storage modulus of the first adhesive layer 51 .
- the storage modulus also known as Young's modulus
- Young's modulus is an indicator of the material's rebound after deformation, indicating the material's ability to store elastic deformation energy, or the ability of a viscoelastic material to store energy in a cycle under alternating stress.
- the storage modulus is used to indicate the rebound ability of the first adhesive layer 51/the second adhesive layer 52 in the horizontal direction (parallel to the plane where the display screen 10 is located).
- the higher the storage modulus of the adhesive layer the smaller the deformation ability or rebound ability of the adhesive layer, and the greater the hardness of the adhesive layer.
- the second adhesive layer 52 is disposed at a position corresponding to the side of the display screen 10 close to the hinge assembly 70 (the side close to the hinge), and the first adhesive layer 51 is disposed at a position corresponding to the side of the display screen 10 far from the hinge assembly 70 (the side far from the hinge), and when the foldable electronic device 100 is bent, the bending stress borne by the side of the display screen 10 close to the hinge assembly 70 is greater than the bending stress borne by the side of the display screen 10 far from the hinge assembly 70, that is, the second adhesive layer 52 needs to withstand a larger bending stress when bending.
- the first adhesive layer 51 has a smaller elasticity and a larger hardness, so that a high-strength bond can be formed between the cover plate 12 and the first connecting portion 222 to avoid displacement between the cover plate 12 and the first connecting portion 222.
- the storage modulus of the first adhesive layer 51 may be 30 MPa to 40 MPa, for example, 30 MPa, 31 MPa, 32 MPa, 33 MPa, 34 MPa, 35 MPa, 36 MPa, 37 MPa, 38 MPa, 39 MPa, 40 MPa, etc.
- the storage modulus of the second adhesive layer 52 may be 0.05 MPa to 0.1 MPa, such as 0.05 MPa, 0.06 MPa, 0.07 MPa, 0.08 MPa, 0.09 MPa, 0.1 MPa, etc.
- the foldable electronic device 100 may also include a second middle frame 60 and a hinge assembly 70, the hinge assembly 70 is arranged between the first middle frame 20 and the second middle frame 60, the first middle frame 20 and the second middle frame 60 are both rotatably connected to the hinge assembly 70, and the display screen 10 is connected to the first middle frame 20 and the second middle frame 60.
- the foldable electronic device 100 can switch between the open and closed states.
- the shaft assembly 70 may be provided with a first shaft and a second shaft in parallel, wherein the first middle frame 20 rotates around the first shaft, the second middle frame 60 rotates around the second shaft, and the first shaft and the second shaft are parallel to each other.
- the second middle frame 60 and the first middle frame 20 may be symmetrical structures, and the connection method between the second middle frame 60 and the display screen 10 is the same as the connection method between the first middle frame 20 and the display screen 10 .
- FIG. 4 is a schematic diagram of a second structure of a foldable electronic device provided in an embodiment of the present application.
- the second adhesive layer 52 may include a plurality of adhesive material units 521 arranged at intervals. In the direction to the first frame 22 , the plurality of adhesive units 521 are arranged in sequence and the storage moduli of the plurality of adhesive units 521 increase in sequence.
- the direction from the hinge assembly 70 to the first frame 22 is the direction from the near-axis side of the display screen 10 to the far-axis side of the display screen 10.
- the storage modulus of the plurality of glue units 521 increases successively, it means that the elasticity of the plurality of glue units 521 gradually decreases and the hardness gradually increases.
- the glue units 521 close to the hinge assembly 70 have greater elasticity, thereby being able to withstand the greater stress generated when the display screen 10 is bent.
- the glue units 521 far from the hinge assembly 70 have greater hardness, thereby forming a higher connection strength between the display screen 10 and the support member, and improving the connection stability between the display screen 10 and the middle frame.
- the cover plate 12 and the first middle frame 20 can be prevented from shifting, resulting in a gap between the cover plate 12 and the first frame 22.
- the embodiment of the present application gradually decreases the elasticity of the glue unit 521 in the direction from the near-rotation-axis side of the display screen 10 to the far-rotation-axis side of the display screen 10, so that stresses of different sizes in different regions of the display screen 10 can be uniformly absorbed, thereby avoiding the problem of arching of the display screen 10 (separation of the display screen 10 from the first middle frame 20) and the problem of separation of the laminated layers in the display screen 10 caused by uneven bonding between different regions of the display screen 10 and the middle frame.
- the storage modulus of the adhesive unit 521 closest to the first frame 22 is still smaller than the storage modulus of the second adhesive layer 52 .
- the foldable electronic device 100 can be a mobile terminal such as a mobile phone or a tablet computer, and can also be a gaming device, an augmented reality (AR) device, a virtual reality (VR) device, a data storage device, an audio playback device, a video playback device, a wearable device, or other device with a display screen, wherein the wearable device can be a smart bracelet, smart glasses, a smart watch, a smart decoration, etc.
- AR augmented reality
- VR virtual reality
- the wearable device can be a smart bracelet, smart glasses, a smart watch, a smart decoration, etc.
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Abstract
一种折叠式电子设备（100），通过设置盖板（12）的侧面与第一框体（221）之间的距离大于显示功能层（11）的侧面与第一框体（221）之间的距离，使得盖板（12）的边缘相对于显示功能层（11）的边缘向外延伸一段距离，并且使盖板（12）的侧面与第一框体（221）连接，从而可以使显示屏（10）与第一框体（221）之间不产生间隙，避免了折叠式电子设备（100）在折叠过程中显示屏（10）与第一中框（20）发生错动产生间隙的问题。
Description
本申请要求于2022年11月04日提交中国专利局、申请号为202211379491.6、发明名称为“折叠式电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请涉及电子技术领域，特别涉及一种折叠式电子设备。
随着电子技术的飞速发展，手机移动终端产品的更新迭代愈发频繁，得益于屏幕技术的不断创新，越来越多的折叠屏手机已经进入市场。
发明内容
本申请实施例提供一种折叠式电子设备，在折叠过程中不会发生显示屏与第一中框的错动，因此该折叠式电子设备的边缘区域不需要设置装饰件，从而可以降低折叠式电子设备的厚度，有利于实现电子设备的轻薄化，另外，该折叠式电子设备的外观较为简洁，外观表现力较好。
本申请提供一种折叠式电子设备，包括：
显示屏，所述显示屏包括层叠设置的显示功能层和盖板；以及
第一中框，所述第一中框包括用于支撑所述显示功能层的第一支撑件以及用于支撑所述盖板的第一边框，所述第一边框包括与所述第一支撑件连接的第一连接部、以及与所述第一连接部相连的第一框体，所述第一连接部位于所述盖板的下方，所述第一框体位于所述盖板的外侧；
其中，所述盖板的侧面与所述第一框体之间的距离小于所述显示功能层的侧面与所述第一框体之间的距离，并且所述盖板与所述第一框体连接。
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单的介绍。
图1为本申请实施例提供的折叠式电子设备的第一种结构示意图。
图2为图1中区域A的放大示意图。
图3为图2中不含粘合胶时的示意图。
图4为本申请实施例提供的折叠式电子设备的第二种结构示意图。
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、完整的描述。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。
请参阅图1与图2，图1为本申请实施例提供的折叠式电子设备的第一种结构示意图，图2为图1中区域A的放大示意图。本申请实施例提供一种折叠式电子设备100，包括显示屏10与第一中框20，显示屏10包括层叠设置的显示功能层11和盖板12；第一中框20包括用于支撑显示功能层11的第一支撑件21以及用于支撑盖板12的的第一边框22，第一边框22包括与第一支撑件21连接的第一连接部222以及与第一连接部222相连的第一框体221，第一连接部222位于盖板12的下方，第一框体221位于盖板12的外侧。
示例性地，盖板12可以为不等厚超薄玻璃(Ultra Flexible Glass，UFG)，与传统的平整玻璃相比，UFG玻璃中间的厚度有所减薄，可以减轻柔性屏幕折叠时的局部应力集中，具有较好的抗弯折能力。
示例性地，第一支撑件21的材料和第一边框22的材料可以相同也可以不同，在一些实施例中，第一支撑件21的材料和第一边框22的材料均为塑胶。
请结合图2，第一边框22包括还包括与第一连接部222相连的卡合部223，第一支撑件21上设有卡槽215，卡合部223与卡槽215卡合连接。
示例性地，第一边框22与第一支撑件21之间还可以通过其它的方式连接，或者，第一边框22与第一支撑件21可以为一体结构，二者通过一体成型工艺(例如注塑工艺)制备。
请结合图1与图2，盖板12的侧面与第一框体221之间的距离小于显示功能层11的侧面与第一框体221之间的距离，并且，盖板12至少与第一框体221连接。
请结合图1，盖板12的侧面与显示功能层11的侧面之间的距离D为1.5mm～2mm(例如1.5mm、1.6mm、1.7mm、1.8mm、1.9mm、2mm等)，也即是说，盖板12的边缘相对于显示功能层11的边缘向外延伸1.5mm～2mm。
本申请实施例提供的折叠式电子设备100，通过设置盖板12的侧面与第一框体221之间的距离大于显示功能层11的侧面与第一框体221之间的距离，也即是说，使得盖板12的边缘相对于显示功能层11的边缘向外延伸一段距离，并且使盖板12的侧面与第一框体221连接，从而可以使显示屏10与第一框体221之间不产生间隙，避免了折叠式电子设备100在折叠过程中显示屏10与第一中框20发生错动产生间隙的问题，因此该折叠式电子设备100的边缘区域不需要设置装饰件，从而可以降低折叠式电子设备100的厚度，有利于实现电子设备的轻薄化(整机厚度可以降低0.5mm)，另外，该折叠式电子设备100的外观较为简洁，外观表现力较好。
请结合图1与图2，显示屏10还可以包括保护膜13，保护膜13设置于盖板12远离显示功能层11的一侧，第一框体221的顶面高于保护膜13的顶面。可以理解的是，当显示屏10被锋利物体刮擦时，保护膜13可以对盖板12起到保护作用，避免盖板12表面出现划痕、裂纹等情况进而导致透光率降低；另外，通过设置第一框体221的顶面高于保护膜13的顶面，也即是说，使得第一框体221的顶面略高于显示屏10的顶面，从而可以利用第一框体221实现从显示屏10的侧面对显示屏10进行保护。
示例性地，保护膜13的材料可以包括聚对苯二甲酸乙二醇酯(PET)，保护膜13可以通过光学透明胶(OCA)与显示屏10固定在一起。
示例性地，盖板12与显示功能层11之间也可以通过光学透明胶(OCA)固定连接。
示例性地，显示功能层11可以包括在从盖板12至显示功能层11的方向上依次层叠设置的偏光片、OLED(有机发光二极管)层、塑胶支撑膜、压敏胶层、金属支撑层。可以理解的是，OLED层可以起到发光显示的作用，偏光片可以为圆偏光片，可以起到减少反射光，提升对比度，进而提升显示屏10的显示效果的作用，压敏胶层在塑胶支撑膜与金属支撑层之间可以起到缓冲作用，示例性地，金属支撑层的材质可以为不锈钢。
请结合图1与图2，第一框体221与盖板12沿第一方向(水平方向)间隔设置，并且盖板12与第一框体221之间通过粘合胶40连接。
示例性地，粘合胶40可以为热熔胶，点胶时可以首先将热熔胶加热熔融成流体，之后将热熔胶的熔融流体滴注或涂敷在盖板12与第一框体221之间
的间隙内，热熔胶冷却后形成固化胶层，从而对盖板12与第一框体221起到粘接作用，由于热熔胶的粘接效果较好，从而可以将盖板12与第一框体221牢固的连接在一起。示例性地，热熔胶可以包括乙烯-醋酸乙烯酯共聚物(EVA)热熔胶、聚酯(PES)热熔胶、聚酰胺(PA)热熔胶、聚烯烃热熔胶和聚氨酯热熔胶中的至少一种。
请结合图1与图2，可以看出，粘合胶40不仅可以粘接框体和盖板12，还可以粘接第一连接部222和盖板12，也即是说，粘合胶40可以从两个方向上对盖板12进行固定，使得盖板12牢固的固定在第一中框20上，进而使显示屏10和第一中框20牢固连接。
示例性地，粘合胶40的颜色与第一边框22的颜色可以保持一致，例如粘合胶40的颜色与第一边框22的颜色均为黑色，从而可以使折叠式电子设备100的外观保持简洁，提升折叠式电子设备100的外观表现力。
请结合图1与图2，同时参阅图3，图3为图2中不含粘合胶时的示意图。第一边框22上设有用于容纳粘合胶40的储胶槽30，储胶槽30包括位于第一框体221上的第一凹槽31与位于第一连接部222上的第二凹槽32，第一凹槽31与第二凹槽32连通；粘合胶40中的至少一部分位于储胶槽30内。
请结合图2和图3，第一凹槽31的底部与第二凹槽32的底部可以相互垂直，或者，第一凹槽31的底部与第二凹槽32的底部之间的夹角也可以为锐角(大于0°小于90°)，例如15°、30°、45°、60°、75°、80°等。
示例性地，第一凹槽31与第二凹槽32可以均呈长方体状。
可以理解的是，当第一边框22上设有储胶槽30时，可以增加第一边框22与盖板12之间的储胶量，增加粘合胶40的宽度和厚度，从而可以提升粘合胶40的粘接力，进而提升第一边框22与盖板12的连接稳定性。
请结合图2和图3，第二凹槽32在第一支撑件21上的正投影与盖板12在第一支撑件21上的正投影可以部分重叠，由于第二凹槽32在水平方向上的宽度对粘合胶40在水平方向上的宽度具有一定的限制作用，因此当第二凹槽32在水平方向上与盖板12部分重叠时，粘合胶40通常也在水平方向上与盖板12部分重叠，此时，粘合胶40可以粘接盖板12的底部，即粘合胶40可以在盖板12的底面和第一连接部222的顶面之间起到固定连接作用。
请结合图2和图3，第二凹槽32在第一支撑件21上的正投影与显示功能
层11在第一支撑件21上的正投影之间存在间隔。需要说明的是，当第二凹槽32在第一支撑件21上的正投影与显示功能层11在第一支撑件21上的正投影之间不存在间隔时，即意味着第二凹槽32在水平方向上与第一支撑件21临接或者发生部分重叠，可以理解的是，当第二凹槽32在水平方向上与第一支撑件21临接时，储胶槽30内的粘合胶40会从显示功能层11的侧面直接与显示功能层11发生接触，从而对显示功能层11造成污染，粘合胶40内的杂质离子容易进入显示功能层11中从而影响显示功能层11的显示性能；当第二凹槽32在水平方向上与第一支撑件21发生部分重叠时，储胶槽30内的粘合胶40会从显示功能层11的底面和侧面直接与显示功能层11发生接触，从而对显示功能层11造成污染；本申请实施例通过设置第二凹槽32在第一支撑件21上的正投影与显示功能层11在第一支撑件21上的正投影之间存在间隔，可以避免储胶槽30内的粘合胶40从显示功能层11的侧面或底面与显示功能层11发生接触的问题，从而可以避免粘合胶40内的杂质离子进入显示功能层11中进而导致显示功能层11的显示性能降低的问题。
请结合图2和图3，第一凹槽31的顶面低于盖板12的顶面，但高于盖板12的底面，以使得粘合胶40的顶面可以限制在盖板12的顶面和底面之间，可以理解的是，当粘合胶40的顶面低于盖板12的底面时，粘合胶40无法对盖板12的侧面进行固定，也即是说，此时粘合胶40无法在第一框体221和盖板12的侧面之间起到固定连接作用；当粘合胶40的顶面高于盖板12的顶面时，粘合胶40会溢流至盖板12的顶面，也即是说，粘合胶40会覆盖盖板12的顶面，由于粘合胶40通常为黑色，从而会影响盖板12的透光性能和外观美观度，并且粘合胶40的存在会导致盖板12的顶面凹凸不平；本申请实施例通过将第一凹槽31的顶面限制在盖板12的顶面和底面之间，不仅可以使粘合胶40起到固定连接第一框体221和盖板12的侧面的作用，而且，还可以避免粘合胶40溢流至盖板12顶面导致盖板12的透光性能和外观美观度受到影响的问题。
请结合图1与图2，盖板12的底面与第一连接部222的顶面之间通过第一胶层51连接。
需要说明的是，本申请实施例中，任一结构件的顶面和底面各自的定义为：定义从显示功能层11至盖板12的方向为向上，从盖板12至显示功能层11的
方向为向下，任一结构件的顶面指的是该结构件朝上设置的一面，任一结构件的底面指的是该结构件朝下设置的一面。
请结合图1与图2，可以看出，第一胶层51设置在粘合胶40的内侧，也即是说，第一胶层51用于将盖板12上从显示屏10边缘延伸出的区域固定在第一边框22的第一连接部222上，从而可以进一步加强盖板12与第一中框20之间的连接，进而提升显示屏10和第一中框20的连接稳定性，当对折叠式电子设备100进行弯折时，可以避免盖板12与第一边框22之间发生错动导致盖板12与第一边框22之间产生间隙。
示例性地，第一胶层51为双面胶，双面胶可以包括泡棉以及设于泡棉两侧的粘接胶。
示例性地，第一胶层51的厚度为0.13mm～0.15mm，例如0.13mm、0.14mm、0.15mm等。可以理解的是，第一胶层51不仅起到固定连接盖板12和第一边框22的作用，还可以在形成粘合胶40时起到点胶限高的作用。
请结合图1，显示功能层11的底面与第一支撑件21的顶面之间通过第二胶层52连接。
可以理解的是，本申请通过使显示功能层11的底面与第一支撑件21的顶面之间通过第二胶层52连接连接，可以进一步加强第一中框20与显示屏10之间的连接，有利于进一步提升折叠式电子设备100的结构稳定性，避免折叠式电子设备100在折叠过程中显示屏10与第一中框20发生分离。
示例性地，第二胶层52为双面胶，双面胶可以包括泡棉以及设于泡棉两侧的粘接胶。
示例性地，第二胶层52的厚度为0.2mm～0.25mm，例如0.2mm、0.21mm、0.22mm、0.23mm、0.24mm、0.25mm等。
示例性地，第二胶层52的储能模量小于第一胶层51的储能模量。
需要说明的是，储能模量又名杨氏模量，是材料变形后回弹的指标，表示材料存储弹性变形能量的能力，或者表示粘弹性材料在交变应力作用下一个周期内储存能量的能力。本申请实施例中，储能模量用来表示第一胶层51/第二胶层52在水平方向(平行于显示屏10所在的平面)上的回弹能力。通常而言，胶层的储能模量越高，表示该胶层的变形能力或回弹能力越小，同时该胶层的硬度越大。
请结合图1，可以看出，第二胶层52的设置位置对应于显示屏10上靠近转轴组件70的一侧(近转轴侧)，第一胶层51的设置位置对应于显示屏10上远离转轴组件70的一侧(远转轴侧)，而当对折叠式电子设备100进行弯折时，显示屏10上靠近转轴组件70的一侧承受的弯折应力大于显示屏10上远离转轴组件70的一侧承受的弯折应力，也即是说，第二胶层52在弯折时需要承受较大的弯折应力。已知胶材的储能模量越低时胶材的弹性越好，越容易变形，因此，当第二胶层52的储能模量较低时，第二胶层52的弹性较大，从而可以承受显示屏10的近转轴侧弯折产生的较大应力。由于第一胶层51设置于显示屏10的远转轴侧，也即是说，第一胶层51不需要承受较大的弯折应力，因此第一胶层51可以具有较高的储能模量，此时第一胶层51的弹性较小，硬度较大，可以使盖板12与第一连接部222之间形成高强度的粘接，避免盖板12与第一连接部222之间发生错动。
示例性地，第一胶层51的储能模量可以为30Mpa～40Mpa，例如30Mpa、31Mpa、32Mpa、33Mpa、34Mpa、35Mpa、36Mpa、37Mpa、38Mpa、39Mpa、40Mpa等。
示例性地，第二胶层52的储能模量可以为0.05MPa～0.1MPa，例如0.05MPa、0.06MPa、0.07MPa、0.08MPa、0.09MPa、0.1MPa等。
请结合图1，折叠式电子设备100还可以包括第二中框60和转轴组件70，转轴组件70设于第一中框20和第二中框60之间，第一中框20和第二中框60均与转轴组件70转动连接，显示屏10连接至第一中框20和第二中框60。
可以理解的是，当用户对第一中框20和/或第二中框60施加作用力，使第一中框20和/或第二中框60绕转轴组件70旋转时，折叠式电子设备100可以在打开和合上的状态之间进行切换。
示例性地，转轴组件70可以并列设置有第一转轴和第二转轴，其中，第一中框20绕第一转轴转动，第二中框60绕第二转轴转动，第一转轴与第二转轴彼此平行。
请结合图1，第二中框60与第一中框20可以为对称结构，第二中框60和显示屏10的连接方式与第一中框20和显示屏10的连接方式相同。
请参阅图4，图4为本申请实施例提供的折叠式电子设备的第二种结构示意图，第二胶层52可以包括间隔设置的多个胶材单元521，在从转轴组件70
至第一边框22的方向上，多个胶材单元521依次设置并且多个胶材单元521的储能模量依次增加。
可以理解的是，从转轴组件70至第一边框22的方向即为从显示屏10的近转轴侧至显示屏10的远转轴侧的方向，在从显示屏10的近转轴侧至显示屏10的远转轴侧的方向上，当多个胶材单元521的储能模量依次增加时，意味着多个胶材单元521的弹性逐渐降低，硬度逐渐增加，也即是说，靠近转轴组件70的胶材单元521的弹性较大，从而可以承受显示屏10弯折时产生的较大应力，远离转轴组件70的胶材单元521的硬度较大，从而可以使显示屏10与支撑件之间形成较高的连接强度，提升显示屏10与中框之间的连接稳定性，当对折叠式电子设备100进行弯折时，可以避免盖板12与第一中框20之间发生错动导致盖板12与第一边框22之间产生间隙。
另外，由于显示屏10上不同区域在弯折时产生的应力不同，即在从显示屏10的近转轴侧至显示屏10的远转轴侧的方向上，显示屏10上产生的应力逐渐降低，因此本申请实施例通过设置在从显示屏10的近转轴侧至显示屏10的远转轴侧的方向上胶材单元521的弹性逐渐降低，可以使得显示屏10上不同区域的不同大小的应力得到均匀的吸收，避免显示屏10上的不同区域与中框之间的粘接力不均匀导致的显示屏10起拱(显示屏10与第一中框20分离)的问题以及显示屏10中的叠层分离的问题。
需要说明的是，多个胶材单元521中，最靠近第一边框22的一个胶材单元521的储能模量依然小于第二胶层52的储能模量。
示例性地，折叠式电子设备100可以为手机、平板电脑等移动终端，还可以是游戏设备、增强现实(Augmented Reality，AR)设备、虚拟现实(Virtual Reality，VR)设备、数据存储装置、音频播放装置、视频播放装置、可穿戴设备等具有显示屏的设备，其中可穿戴设备可以是智能手环、智能眼镜、智能手表、智能装饰等。
以上对本申请实施例提供的折叠式电子设备进行了详细介绍。本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请。同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。
Claims (20)
- 一种折叠式电子设备，包括：显示屏，所述显示屏包括层叠设置的显示功能层和盖板；以及第一中框，所述第一中框包括用于支撑所述显示功能层的第一支撑件以及用于支撑所述盖板的第一边框，所述第一边框包括与所述第一支撑件连接的第一连接部、以及与所述第一连接部相连的第一框体，所述第一连接部位于所述盖板的下方，所述第一框体位于所述盖板的外侧；其中，所述盖板的侧面与所述第一框体之间的距离小于所述显示功能层的侧面与所述第一框体之间的距离，并且所述盖板与所述第一框体连接。
- 根据权利要求1所述的折叠式电子设备，其中，所述盖板与所述第一框体之间通过粘合胶连接。
- 根据权利要求2所述的折叠式电子设备，其中，所述第一边框上设有用于容纳所述粘合胶的储胶槽，所述储胶槽包括位于所述第一框体上的第一凹槽和位于所述第一连接部上的第二凹槽，所述第一凹槽与所述第二凹槽连通；所述粘合胶的至少一部分位于所述储胶槽内。
- 根据权利要求3所述的折叠式电子设备，其中，所述第一凹槽的顶面低于所述盖板的顶面并且高于所述盖板的底面。
- 根据权利要求3所述的折叠式电子设备，其中，所述第二凹槽在所述第一支撑件上的正投影与所述盖板在所述第一支撑件上的正投影部分重叠。
- 根据权利要求3所述的折叠式电子设备，其中，所述第二凹槽在所述第一支撑件上的正投影与所述显示功能层在所述第一支撑件上的正投影之间存在间隔。
- 根据权利要求2所述的折叠式电子设备，其中，所述粘合胶为热熔胶，所述热熔胶包括乙烯-醋酸乙烯酯共聚物热熔胶、聚酯热熔胶、聚酰胺热熔胶、聚烯烃热熔胶和聚氨酯热熔胶中的至少一种。
- 根据权利要求1所述的折叠式电子设备，其中，所述第一边框还包括与所述第一连接部相连的卡合部，所述第一支撑件上设有卡槽，所述卡合部与所述卡槽卡合连接。
- 根据权利要求1所述的折叠式电子设备，其中，所述盖板的底面与所述第一连接部的顶面之间通过第一胶层连接。
- 根据权利要求9所述的折叠式电子设备，其中，所述显示功能层的底面与所述第一支撑件的顶面之间通过第二胶层连接，所述第二胶层的储能模量小于所述第一胶层的储能模量。
- 根据权利要求10所述的折叠式电子设备，其中，所述第一胶层的储能模量为30Mpa～40Mpa，所述第二胶层的储能模量为0.05MPa～0.1MPa。
- 根据权利要求10所述的折叠式电子设备，其中，所述第一胶层的厚度为0.13mm～0.15mm，所述第二胶层的厚度为0.2mm～0.25mm。
- 根据权利要求1所述的折叠式电子设备，其中，所述盖板的侧面与所述显示功能层的侧面之间的距离为1.5mm～2mm。
- 根据权利要求1所述的折叠式电子设备，其中，所述显示屏还包括保护膜，所述保护膜设置于所述盖板远离所述显示功能层的一侧，所述第一框体的顶面高于所述保护膜的顶面。
- 根据权利要求1所述的折叠式电子设备，其中，所述显示功能层包括在从所述盖板至所述显示功能层的方向上依次层叠设置的偏光片、有机发光二极管层、塑胶支撑膜、压敏胶层和金属支撑层。
- 根据权利要求10所述的折叠式电子设备，其中，所述折叠式电子设备还包括第二中框和转轴组件，所述转轴组件设于所述第一中框和所述第二中框之间，所述第一中框和所述第二中框均与所述转轴组件转动连接，所述显示屏连接至所述第一中框和所述第二中框。
- 根据权利要求16所述的折叠式电子设备，其中，所述第二胶层的设置位置对应于所述显示屏上靠近所述转轴组件的一侧，所述第一胶层的设置位置对应于所述显示屏上远离所述转轴组件的一侧。
- 根据权利要求16所述的折叠式电子设备，其中，所述第二胶层包括间隔设置的多个胶材单元，在从所述转轴组件至所述第一边框的方向上，多个所述胶材单元依次设置并且多个所述胶材单元的储能模量依次增加。
- 根据权利要求16所述的折叠式电子设备，其中，所述转轴组件包括平行设置的第一转轴和第二转轴，所述第一中框绕所述第一转轴转动，所述第二中框绕所述第二转轴转动。
- 根据权利要求16所述的折叠式电子设备，其中，所述第二中框和所述显示屏的连接方式与所述第一中框和所述显示屏的连接方式相同。
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| CN209914239U (zh) * | 2019-02-20 | 2020-01-07 | Oppo广东移动通信有限公司 | 电子设备 |
| US10601968B1 (en) * | 2018-11-29 | 2020-03-24 | Wei Hu Koh | Foldable wedge-shaped mobile electronic device |
| CN212302156U (zh) * | 2020-05-15 | 2021-01-05 | 广州视源电子科技股份有限公司 | 显示屏及显示设备 |
| CN214955738U (zh) * | 2021-06-22 | 2021-11-30 | 深圳市康冠商用科技有限公司 | 一种显示面板与盖板固定结构及显示屏 |
| CN216671082U (zh) * | 2021-12-22 | 2022-06-03 | 青岛维信诺电子有限公司 | 一种显示模组和显示装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10601968B1 (en) * | 2018-11-29 | 2020-03-24 | Wei Hu Koh | Foldable wedge-shaped mobile electronic device |
| CN209914239U (zh) * | 2019-02-20 | 2020-01-07 | Oppo广东移动通信有限公司 | 电子设备 |
| CN212302156U (zh) * | 2020-05-15 | 2021-01-05 | 广州视源电子科技股份有限公司 | 显示屏及显示设备 |
| CN214955738U (zh) * | 2021-06-22 | 2021-11-30 | 深圳市康冠商用科技有限公司 | 一种显示面板与盖板固定结构及显示屏 |
| CN216671082U (zh) * | 2021-12-22 | 2022-06-03 | 青岛维信诺电子有限公司 | 一种显示模组和显示装置 |
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