OLED display screen packaging structure

Abstract

The invention relates to an OLED (Organic Light Emitting Diode) display screen packaging structure in the field of semiconductor devices, through a lower anti-torsion layer made of an organic film material and an upper anti-torsion layer made of an inorganic film material, when an OLED display screen is twisted, the anti-torsion capability of the OLED display screen is improved by utilizing staggered teeth made of the inorganic film material and the organic film material which are distributed in a staggered manner in the circumferential direction; mechanical damage and even tearing of the OLED display screen are reduced, so that the torsion-resistant layer composed of the lower torsion-resistant layer and the upper torsion-resistant layer has good torsion resistance and water and oxygen barrier ability; meanwhile, the staggered teeth distributed in the circumferential direction in a staggered mode are horizontally connected in series and fixed through the inner shaping layer provided with the horizontal series connection strips, the integrity of the torsion-resistant layer composed of the lower torsion-resistant layer and the upper torsion-resistant layer is improved, and the torsion-resistant capacity and the water and oxygen blocking capacity are further improved through the outer blocking layer wrapping the outer side of the inner shaping layer; and the situation that the edge of the OLED display screen is prone to torsion mechanical damage and edge warping tearing is reduced.

Description

Technical Field

[0001] The invention relates to a display screen packaging structure, in particular to an OLED display screen packaging structure applied in the field of semiconductor devices. Background Art

[0002] OLED encapsulation structure refers to a structure that uses specific technology to seal the OLED (organic light-emitting diode) panel to protect it from external factors such as oxygen and moisture, thereby extending its service life. The structure is usually composed of a substrate, an anode, a hole transport layer, a light-emitting layer, an electron transport layer, a cathode and a key encapsulation layer. The encapsulation layer is generally located at the outermost layer of the OLED device, and effectively blocks harmful factors in the external environment, such as oxygen and moisture, through physical and chemical means to prevent them from penetrating into the organic layer of the OLED, thereby preventing the resulting degradation of luminous performance and device aging. The main function of encapsulation is to ensure the stability and reliability of OLED devices and extend their service life.

[0003] The existing Chinese patent with publication number CN114171702B provides an OLED packaging structure, which can enhance the connection effect between the first inorganic layer and the organic layer and the connection effect between the second inorganic layer and the organic layer by setting a first bonding layer between the first inorganic layer and the organic layer and a second bonding layer between the second inorganic layer and the organic layer, thereby enabling the film layers in the thin film packaging layer to be more tightly combined, improving the water and oxygen barrier capacity of the thin film packaging layer, and thereby extending the service life of the OLED device.

[0004] Existing packaging structures, including those in the above-mentioned patents, usually use a stacking method of inorganic film layers and organic film layers to encapsulate OLED devices to improve the ability to block water and oxygen. However, in actual use, the OLED display screen as a whole is often twisted at the edge of the display screen due to the needs of curved surface processing and daily bumps. When the OLED display screen is twisted, its edges are prone to mechanical damage, causing the edges of the packaging layer to be prone to tearing and warping, causing the water and oxygen barrier ability at the edges of the packaging layer to drop sharply, affecting the stability and service life of the OLED display screen. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the encapsulation layer of the existing OLED display screen is torn and warped when twisted, which affects the water and oxygen barrier capacity of the encapsulation layer.

[0006] In order to solve the above problems, the present invention provides an OLED display packaging structure, including a substrate, a light-emitting device mounted on the substrate, and a composite packaging layer; the composite packaging layer includes an upper covering layer wrapped around the outside of the light-emitting device and covering the upper end surface of the substrate, the circumferential outer side of the combination of the substrate and the upper covering layer is wrapped with a lower anti-torsion layer and an upper anti-torsion layer that are nested alternately up and down, the outer side of the combination of the lower anti-torsion layer and the upper anti-torsion layer is wrapped with an inner plastic layer that extends to the upper end surface of the upper covering layer and covers the upper end surface of the upper covering layer, a horizontal series strip distributed along the circumferential direction of the inner wall of the inner plastic layer is provided in the middle part of the inner side of the inner plastic layer, the combination of the lower anti-torsion layer and the upper anti-torsion layer is clamped with the horizontal series strip, and the outer wall of the inner plastic layer is wrapped with an outer barrier layer in the circumferential direction; both the upper covering layer and the inner plastic layer are made of colloid material, the lower anti-torsion layer is made of organic film material, and the upper anti-torsion layer and the outer barrier layer are made of inorganic film material.

[0007] In the above OLED display packaging structure, the torsion resistance and water and oxygen barrier capabilities of the OLED display packaging layer are improved by means of the lower torsion-resistant layer and the upper torsion-resistant layer that are nested alternately up and down and the inner plastic layer that connects the two in series.

[0008] As a further improvement of the present invention, both the lower anti-torsion layer and the upper anti-torsion layer include a bottom frame in the shape of a rectangular frame and staggered teeth integrally formed therewith and circumferentially equidistantly distributed, and staggered grooves are formed between adjacent pairs of staggered teeth.

[0009] As a further improvement of the present invention, the upper end surface of the substrate is located outside the light-emitting device and is provided with a plurality of embedded grooves surrounding the outside of each light-emitting device. The upper covering layer is formed with an annular protrusion extending into the embedded groove during molding.

[0010] As a further improvement of the present invention, an installation groove is formed on the upper end surface of the inner plastic layer during molding, and an upper surface wear-resistant layer is nested in the installation groove. The circumferential outer side of the upper surface wear-resistant layer is connected and fixed to the inner wall of the installation groove by an adhesive layer; the upper surface wear-resistant layer is made of inorganic film material, and the adhesive layer is made of colloidal material. The upper surface wear-resistant layer is deposited in the installation groove by one of chemical vapor deposition, atomic layer deposition or physical vapor deposition processes, and the adhesive layer is formed in the annular gap between the upper surface wear-resistant layer and the inner wall of the installation groove by a coating and curing process.

[0011] As a further improvement of the present invention, the staggered teeth are in a vertical strip structure, a horizontal series connection groove is opened in the middle of the staggered teeth, the horizontal series connection groove is a groove structure with a rectangular cross-section, and the horizontal series connection strip is nested in the horizontal series connection groove.

[0012] As a further improvement of the present invention, a lower plating groove is provided at the edge of the lower end surface of the substrate, and the bottom frame of the lower torsion-resistant layer extends inwardly to and is nested in the lower plating groove; an upper plating groove is provided at the edge of the upper end surface of the upper covering layer, and the bottom frame of the upper torsion-resistant layer extends inwardly to and is nested in the upper plating groove.

[0013] As a further improvement of the present invention, the colloid material is made of at least one of dimethylsiloxane, epoxy resin and acrylic resin.

[0014] As a further improvement of the present invention, the organic film material is made of at least one of polyethylene, polyester, and polyvinylidene chloride, and the inorganic film material is made of at least one of silicon oxide, silicon nitride, silicon oxynitride, and aluminum oxide.

[0015] As a further improvement of the present invention, the packaging method thereof comprises the following steps: Step 1: manufacturing a light emitting device on a substrate; Step 2: manufacturing an upper covering layer, and forming an upper covering layer located above the substrate and wrapping the light-emitting device through a coating and curing process; Step three, making an anti-torsion layer, making an anti-torsion layer on the circumferential side wall of the combination of the substrate and the upper covering layer, first making an upper anti-torsion layer, depositing an inorganic film material on the circumferential side wall of the combination of the substrate and the upper covering layer by a process selected from chemical vapor deposition, atomic layer deposition or physical vapor deposition, and then making a lower anti-torsion layer, depositing an organic film material on the circumferential side wall of the combination of the substrate and the upper covering layer by a process selected from magnetron sputtering, electron beam evaporation or plasma enhanced chemical vapor deposition; Step 4: making an inner plastic layer, applying the colloid material on the circumferential outer wall of the anti-torsion layer formed by the combination of the upper anti-torsion layer and the lower anti-torsion layer and the upper end surface of the upper covering layer by coating, and then curing and molding to obtain the inner plastic layer; Step 5: Prepare an outer barrier layer by depositing an inorganic film material on the circumferential side wall of the inner plastic layer through a process of chemical vapor deposition, atomic layer deposition or physical vapor deposition to obtain an outer barrier layer. In summary, the present invention adopts a torsion-resistant layer composed of a lower torsion-resistant layer made of an organic film material and an upper torsion-resistant layer made of an inorganic film material. When the OLED display screen is twisted, the staggered teeth made of the inorganic film material and the organic film material that are circumferentially staggered are used to improve the torsion resistance of the OLED display screen, reduce the mechanical damage or even tearing of the OLED display screen, and reduce the excessive deformation and water and oxygen penetration of the torsion-resistant layer, so that the torsion-resistant layer composed of the lower torsion-resistant layer and the upper torsion-resistant layer has good torsion resistance and water and oxygen barrier ability; at the same time, the staggered teeth that are circumferentially staggered are horizontally connected and fixed in series through an inner plastic layer provided with horizontal series strips, so as to improve the integrity of the torsion-resistant layer composed of the lower torsion-resistant layer and the upper torsion-resistant layer, and the outer barrier layer made of inorganic film material that is coated on the outside of the inner plastic layer is used to further improve the torsion resistance and water and oxygen barrier ability, and reduce the easy occurrence of torsion mechanical damage and warping and tearing at the edge of the OLED display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of this application; Figure 2 This is a schematic diagram of the transverse cross-sectional structure of the present application; Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle; Figure 4 This is a schematic diagram of the explosion structure of this application; Figure 5 This is the packaging flow chart of this application; Figure 6 It is a schematic diagram of the three-dimensional structure of the lower anti-torsion layer and the upper anti-torsion layer in this application; Figure 7 An exploded view of the torsion-resistant layer, the inner shaping layer and the outer barrier layer in this application; Figure 8 This is a schematic diagram of the cross-sectional structure of the inner shaping layer in this application; Fig. 9 It is a top perspective schematic diagram of the substrate and the upper cover layer in this application; Fig.10 It is a bottom-up stereoscopic structural schematic diagram of the substrate and the upper covering layer in this application.

[0017] Description of the numbers in the figure: 1. Substrate; 101. Lower plating groove; 102. Embedded groove; 2. Light-emitting device; 3. Upper covering layer; 301. Upper plating groove; 302. Annular protrusion; 4. Lower anti-torsion layer; 401. Bottom frame; 402. Staggered teeth; 403. Staggered grooves; 404. Horizontal series grooves; 5. Upper anti-torsion layer; 6. Inner shaping layer; 601. Horizontal series strip; 602. Installation groove; 7. External barrier layer; 8. Upper wear-resistant layer; 9. Adhesive layer. DETAILED DESCRIPTION

[0018] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0019] The first implementation method: Figure 1-10An OLED display packaging structure is shown, comprising a substrate 1, a light-emitting device 2 mounted on the substrate 1, and a composite packaging layer; the composite packaging layer comprises an upper covering layer 3 wrapped around the outside of the light-emitting device 2 and covering the upper end surface of the substrate 1; the circumferential outer side of the combination of the substrate 1 and the upper covering layer 3 is wrapped with a lower torsion-resistant layer 4 and an upper torsion-resistant layer 5 which are nested in an alternating manner up and down; the outer side of the combination of the lower torsion-resistant layer 4 and the upper torsion-resistant layer 5 is wrapped with an inner plastic layer 6 which extends to the upper end surface of the upper covering layer 3 and covers the upper end surface of the upper covering layer 3; a horizontal series strip 601 distributed circumferentially along the inner wall of the inner plastic layer 6 is provided in the middle part of the inner side; the combination of the lower torsion-resistant layer 4 and the upper torsion-resistant layer 5 is clamped with the horizontal series strip 601; the outer wall of the inner plastic layer 6 is circumferentially wrapped with an outer barrier layer 7; both the upper covering layer 3 and the inner plastic layer 6 are made of colloid material, the lower torsion-resistant layer 4 is made of organic film material, and the upper torsion-resistant layer 5 and the outer barrier layer 7 are made of inorganic film material.

[0020] Specifically, when the OLED display screen is twisted, when the torsion-resistant layer composed of the lower torsion-resistant layer 4 made of organic film material and the upper torsion-resistant layer 5 made of inorganic film material is reversed, since the two are respectively made of organic film material and inorganic film material, when torsion deformation occurs, the lower torsion-resistant layer 4 is made of organic film material and has good flexibility and good rigidity against elastic deformation, thereby improving the torsion resistance of the OLED display screen and reducing mechanical damage or even tearing of the OLED display screen; at the same time, the upper torsion-resistant layer 5 is made of inorganic film material, and has good strength against non-elastic deformation and water and oxygen barrier capabilities, thereby reducing excessive deformation and water and oxygen penetration of the torsion-resistant layer, so that the torsion-resistant layer composed of the lower torsion-resistant layer 4 and the upper torsion-resistant layer 5 has good torsion resistance and water and oxygen barrier capabilities.

[0021] See also Figure 6 Both the lower torsion-resistant layer 4 and the upper torsion-resistant layer 5 include a bottom frame 401 in the shape of a rectangular frame and staggered teeth 402 integrally formed therewith and circumferentially equidistantly distributed, and staggered grooves 403 are formed between adjacent pairs of staggered teeth 402.

[0022] Specifically, it is convenient to manufacture the lower anti-torsion layer 4 and the upper anti-torsion layer 5 and enable the two to be plugged together.

[0023] Compared with the traditional OLED packaging structure, please refer to Figure 3 and Figure 4The present invention adopts a torsion-resistant layer composed of a lower torsion-resistant layer 4 made of an organic film material and an upper torsion-resistant layer 5 made of an inorganic film material. When the OLED display screen is twisted, the staggered teeth 402 made of the inorganic film material and the organic film material are circumferentially staggered to improve the torsion resistance of the OLED display screen, reduce the mechanical damage or even tearing of the OLED display screen, and reduce the excessive deformation and water and oxygen penetration of the torsion-resistant layer, so that the torsion-resistant layer composed of the lower torsion-resistant layer 4 and the upper torsion-resistant layer 5 has good torsion resistance and water and oxygen barrier capacity; at the same time, the staggered teeth 402 circumferentially staggered are horizontally connected and fixed by the inner shaping layer 6 provided with horizontal series strips 601, so as to improve the integrity of the torsion-resistant layer composed of the lower torsion-resistant layer 4 and the upper torsion-resistant layer 5, and the outer barrier layer 7 made of inorganic film material coated on the outside of the inner shaping layer 6 is used to further improve the torsion resistance and water and oxygen barrier capacity, and reduce the easy occurrence of torsion mechanical damage and warping and tearing at the edge of the OLED display screen.

[0024] See also Figure 6 and Figure 8 The staggered teeth 402 are in a vertical strip structure. A horizontal serial connection groove 404 is provided in the middle of the staggered teeth 402 . The horizontal serial connection groove 404 is a groove structure with a rectangular cross section. The horizontal serial connection strip 601 is nested in the horizontal serial connection groove 404 .

[0025] Specifically, the horizontal connecting strip 601 is clamped in the horizontal connecting groove 404 of the two groups of staggered teeth 402 distributed in a circumferential direction, so as to achieve stable connection of the lower anti-torsion layer 4 and the upper anti-torsion layer 5, and further improve the integrity, flexibility and water and oxygen blocking ability of the anti-torsion layer composed of the lower anti-torsion layer 4 and the upper anti-torsion layer 5.

[0026] See also Figure 6 , Fig. 9 and Fig.10 A lower plating tank 101 is provided at the edge of the lower end surface of the substrate 1, and the bottom frame 401 of the lower anti-torsion layer 4 extends inwardly to and is nested in the lower plating tank 101. An upper plating tank 301 is provided at the edge of the upper end surface of the upper covering layer 3, and the bottom frame 401 of the upper anti-torsion layer 5 extends inwardly and is nested in the upper plating tank 301.

[0027] Specifically, the lower plating tank 101 allows the lower anti-torsion layer 4 to have a larger contact covering area with the substrate 1, and the upper plating tank 301 allows the upper anti-torsion layer 5 to have a larger contact covering area with the upper covering layer 3, thereby making the combination of the lower anti-torsion layer 4 and the upper anti-torsion layer 5 and the combination of the substrate 1 and the upper covering layer 3 have better interlayer bonding strength, thereby improving the integrity, anti-torsion ability and water and oxygen blocking ability.

[0028] In this embodiment, the colloid material is made of at least one of dimethylsiloxane, epoxy resin, and acrylic resin.

[0029] In this embodiment, the organic film material is made of at least one of polyethylene, polyester, and polyvinylidene chloride, and the inorganic film material is made of at least one of silicon oxide, silicon nitride, silicon oxynitride, and aluminum oxide.

[0030] Specifically, the upper covering layer 3 made of colloidal material has better wrapping sealing performance and buffering performance, and has better sealing and buffering effects on the light-emitting device 2; the inner shaping layer 6 made of colloidal material is connected in series with the lower anti-torsion layer 4 and the upper anti-torsion layer 5, and is combined with the outer barrier layer 7 made of inorganic film material. The inner shaping layer 6 and the outer barrier layer 7 have the characteristics of gradually increasing stiffness from the inside to the outside (the stiffness of the colloidal material is less than that of the inorganic film material), which has a better shaping effect on the anti-torsion layer.

[0031] To further explain the structural characteristics of the OLED display packaging structure, please refer to Figure 3-6 A packaging method for an OLED display packaging structure comprises the following steps: Step 1: manufacturing a light emitting device 2, manufacturing a light emitting device 2 on a substrate 1; It should be noted that the light emitting device 2 is an OLED device, specifically including a TFT functional layer in the substrate 1, a pixel definition layer arranged above the TFT functional layer, and a light emitting layer arranged opposite to the opening of the pixel definition layer. The light emitting device 2 is an existing component, and its structure, material and manufacturing process are existing technologies, which will not be described in detail in this application. Step 2: manufacturing an upper cover layer 3, and forming the upper cover layer 3 located above the substrate 1 and wrapping the light emitting device 2 through a coating and curing process; It is necessary to illustrate by way of example that liquid dimethylsiloxane is applied on the substrate 1 and the light emitting device 2, and is cured and formed by heating or ultraviolet curing; Step three, making an anti-torsion layer, making an anti-torsion layer on the circumferential side wall of the combination of the substrate 1 and the upper covering layer 3, first making an upper anti-torsion layer 5, depositing an inorganic film material on the circumferential side wall of the combination of the substrate 1 and the upper covering layer 3 by a process selected from chemical vapor deposition, atomic layer deposition or physical vapor deposition, and then making a lower anti-torsion layer 4, depositing an organic film material on the circumferential side wall of the combination of the substrate 1 and the upper covering layer 3 by a process selected from magnetron sputtering, electron beam evaporation or plasma enhanced chemical vapor deposition; It should be noted that during deposition, a mask plate is required, and a hollow groove matching the shape of the upper torsion-resistant layer 5 and the lower torsion-resistant layer 4 is provided on the mask plate; Step 4: prepare the inner plastic layer 6 by applying the colloid material on the circumferential outer wall of the anti-torsion layer formed by the upper anti-torsion layer 5 and the lower anti-torsion layer 4 and the upper end surface of the upper cover layer 3, and then solidify and shape the inner plastic layer 6; Step five: prepare the outer barrier layer 7 by depositing an inorganic film material on the circumferential side wall of the inner shaping layer 6 through a process selected from chemical vapor deposition, atomic layer deposition or physical vapor deposition to obtain the outer barrier layer 7.

[0032] Second implementation method: Figure 3 , Fig. 9 and Fig.10 An OLED display packaging structure is shown. Based on the first embodiment, a plurality of embedded grooves 102 enclosing the outside of each light-emitting device 2 are provided on the upper end surface of the substrate 1, and the upper covering layer 3 is formed with an annular protrusion 302 extending into the embedded groove 102 during molding.

[0033] Specifically, by opening an embedded groove 102 enclosing the outside of each light-emitting device 2, an annular protrusion 302 extending into the embedded groove 102 is formed when the upper covering layer 3 is molded, so that when the OLED display screen is twisted, the upper covering layer 3 can independently wrap and buffer each light-emitting device 2, thereby reducing the force dislocation of each light-emitting device 2 and improving the connection stability and resistance to mechanical damage between the light-emitting device 2 and the substrate 1.

[0034] See also Figure 3 , Figure 4 and Figure 8 A mounting groove 602 is formed on the upper end surface of the inner plastic layer 6 during molding, and an upper surface wear-resistant layer 8 is nested in the mounting groove 602. The upper surface wear-resistant layer 8 is connected and fixed to the inner wall of the mounting groove 602 through an adhesive layer 9 on the outer side of the circumference; the upper surface wear-resistant layer 8 is made of an inorganic film material, and the adhesive layer 9 is made of a colloidal material.

[0035] It should be noted that the upper wear-resistant layer 8 is deposited in the installation groove 602 by chemical vapor deposition, atomic layer deposition or physical vapor deposition process, and the adhesive layer 9 is formed in the annular gap between the upper wear-resistant layer 8 and the inner wall of the installation groove 602 by a coating and curing process.

[0036] Specifically, the wear resistance of the entire surface of the packaging structure is improved by the cooperation of the upper wear-resistant layer 8 and the outer barrier layer 7, and the water and oxygen barrier capability is further improved.

[0037] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An OLED display screen packaging structure, characterized in that: The invention comprises a substrate (1), a light-emitting device (2) mounted on the substrate (1), and a composite packaging layer; the composite packaging layer comprises an upper covering layer (3) wrapped around the outside of the light-emitting device (2) and covering the upper end surface of the substrate (1); the outer side of the combination of the substrate (1) and the upper covering layer (3) is wrapped with a lower anti-torsion layer (4) and an upper anti-torsion layer (5) which are nested in an alternating manner; the outer side of the combination of the lower anti-torsion layer (4) and the upper anti-torsion layer (5) is wrapped with an inner shaping layer (6) which extends to the upper end surface of the upper covering layer (3) and covers the upper end surface of the upper covering layer (3); a horizontal connecting strip (601) distributed along the circumferential direction of the inner wall of the inner shaping layer (6) is provided at the middle part of the inner side; the combination of the lower anti-torsion layer (4) and the upper anti-torsion layer (5) is clamped with the horizontal connecting strip (601); and the outer wall of the inner shaping layer (6) is wrapped with an outer barrier layer (7) in the circumferential direction; The upper covering layer (3) and the inner shaping layer (6) are both made of colloidal materials, the lower anti-torsion layer (4) is made of organic film materials, and the upper anti-torsion layer (5) and the outer barrier layer (7) are both made of inorganic film materials.

2. The OLED display screen packaging structure according to claim 1, characterized in that: The lower torsion-resistant layer (4) and the upper torsion-resistant layer (5) both comprise a bottom frame (401) in the shape of a rectangular frame and staggered teeth (402) formed integrally therewith and distributed equidistantly in the circumferential direction, wherein a staggered groove (403) is formed between adjacent pairs of staggered teeth (402).

3. The OLED display screen packaging structure according to claim 2, characterized in that: The upper end surface of the substrate (1) is located outside the light-emitting device (2) and is provided with a plurality of embedded grooves (102) enclosing the outsides of the light-emitting devices (2); and the upper covering layer (3) is formed with an annular protrusion (302) extending into the embedded groove (102) during molding.

4. The OLED display screen packaging structure according to claim 3, characterized in that: The upper end surface of the inner plastic layer (6) is formed with a mounting groove (602) during molding, and the mounting groove (602) is embedded with an upper surface wear-resistant layer (8), and the upper surface wear-resistant layer (8) is connected and fixed to the inner wall of the mounting groove (602) through an adhesive layer (9) on the circumferential outer side; the upper surface wear-resistant layer (8) is made of an inorganic film material, and the adhesive layer (9) is made of a colloidal material. The upper surface wear-resistant layer (8) is deposited in the mounting groove (602) by one of the chemical vapor deposition, atomic layer deposition or physical vapor deposition processes, and the adhesive layer (9) is formed in the annular gap between the upper surface wear-resistant layer (8) and the inner wall of the mounting groove (602) by a coating and curing process.

5. The OLED display screen packaging structure according to claim 2, characterized in that: The staggered teeth (402) are in a vertical strip-shaped structure. A horizontal series connection groove (404) is provided in the middle of the staggered teeth (402). The horizontal series connection groove (404) is a groove-shaped structure with a rectangular cross section. The horizontal series connection strip (601) is nested in the horizontal series connection groove (404).

6. The OLED display screen packaging structure according to claim 5, characterized in that: A lower plating groove (101) is provided at the edge of the lower end surface of the substrate (1); a bottom frame (401) of the lower anti-torsion layer (4) extends inwardly to and is nested in the lower plating groove (101); an upper plating groove (301) is provided at the edge of the upper end surface of the upper covering layer (3); and a bottom frame (401) of the upper anti-torsion layer (5) extends inwardly to and is nested in the upper plating groove (301).

7. The OLED display screen packaging structure according to claim 1, characterized in that: The colloid material is made of at least one of dimethylsiloxane, epoxy resin and acrylic resin.

8. The OLED display screen packaging structure according to claim 1, characterized in that: The organic film material is made of at least one of polyethylene, polyester, and polyvinylidene chloride, and the inorganic film material is made of at least one of silicon oxide, silicon nitride, silicon oxynitride, and aluminum oxide.

9. The OLED display screen packaging structure according to claim 6, characterized in that: The packaging method includes the following steps: Step 1: manufacturing a light-emitting device (2), manufacturing a light-emitting device (2) on a substrate (1); Step 2: manufacturing an upper covering layer (3), and forming an upper covering layer (3) located above the substrate (1) and wrapping the light-emitting device (2) through a coating and curing process; Step three, preparing an anti-torsion layer, preparing an anti-torsion layer on the circumferential side wall of the combination of the substrate (1) and the upper covering layer (3), first preparing an upper anti-torsion layer (5), depositing an inorganic film material on the circumferential side wall of the combination of the substrate (1) and the upper covering layer (3) by a process selected from the group consisting of chemical vapor deposition, atomic layer deposition or physical vapor deposition, and then preparing a lower anti-torsion layer (4), depositing an organic film material on the circumferential side wall of the combination of the substrate (1) and the upper covering layer (3) by a process selected from the group consisting of magnetron sputtering, electron beam evaporation or plasma enhanced chemical vapor deposition; Step 4: preparing an inner plastic layer (6), applying a colloid material on the circumferential outer wall of the anti-torsion layer formed by the combination of the upper anti-torsion layer (5) and the lower anti-torsion layer (4) and the upper end surface of the upper covering layer (3) by coating, and then curing and molding to obtain the inner plastic layer (6); Step five: preparing an outer barrier layer (7), depositing an inorganic film material on the circumferential side wall of the inner shaping layer (6) by a process selected from chemical vapor deposition, atomic layer deposition or physical vapor deposition, to obtain the outer barrier layer (7).

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