CN111968521A - Display panel and display device - Google Patents
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- CN111968521A CN111968521A CN202010943574.8A CN202010943574A CN111968521A CN 111968521 A CN111968521 A CN 111968521A CN 202010943574 A CN202010943574 A CN 202010943574A CN 111968521 A CN111968521 A CN 111968521A
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- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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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
- G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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Abstract
The embodiment of the invention relates to the technical field of display, and discloses a display panel and a display device, wherein the display panel comprises: the flexible display screen comprises a first non-bending part, a second non-bending part and a bending part connecting the first non-bending part and the second non-bending part, wherein the first non-bending part and the second non-bending part are oppositely arranged in the thickness direction of the display panel; the functional structure is arranged between the first non-bending part and the second non-bending part, and the projection of the functional structure in the thickness direction of the display panel is in contact with or at least partially overlapped with the projection of the bending part in the thickness direction of the display panel. The display panel and the display device provided by the invention can improve the reliability of the display panel.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.
Background
Flat Display panels, such as conventional Liquid Crystal Display (LCD) panels, Organic Light Emitting Diode (OLED) panels, and Display panels using Light Emitting Diode (LED) devices, have the advantages of high image quality, power saving, thin body, and wide application range, and are widely used in various consumer electronics products, such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, desktop computers, and the like, and become the mainstream of Display panels. In the prior art, a groove routing and a packaging layer exist between a display area and a screen body boundary of a display panel, and both the groove routing and the packaging layer have the risk of generating cracks. Therefore, it is necessary to provide a new display panel to solve the above problems.
Disclosure of Invention
An object of embodiments of the present invention is to provide a display panel and a display device to improve reliability of the display panel.
To solve the above technical problem, in a first aspect, the present invention provides a display panel, including:
the flexible display screen comprises a first non-bending part, a second non-bending part and a bending part connecting the first non-bending part and the second non-bending part, wherein the first non-bending part and the second non-bending part are oppositely arranged in the thickness direction of the display panel; the functional structure is arranged between the first non-bending part and the second non-bending part, and the projection of the functional structure in the thickness direction of the display panel is in contact with or at least partially overlapped with the projection of the bending part in the thickness direction of the display panel.
In addition, the display panel also comprises an adhesive layer and a protective layer; the bonding layer is arranged on one side, far away from the second non-bending part, of the first non-bending part; the protective layer comprises a first portion, a second portion and a third portion, the first portion covers the first non-bending portion, the second portion covers the bending portion, the third portion covers the second non-bending portion, the first portion is arranged on one side, away from the functional structure, of the first non-bending portion, the third portion is arranged on one side, away from the functional structure, of the second non-bending portion, and at least part of the second portion is overlapped with the bonding layer. Through the arrangement of the structure, the protective layer part is overlapped with the bonding layer, so that the bonding layer can play a role of fixing the protective layer, the protective layer is not easy to separate from the flexible display screen, and the reliability of the display panel is further improved.
In addition, the display panel further comprises a polarizer; the polarizer is arranged between the bonding layer and the first non-bending part, the polarizer comprises a first surface adjacent to the third part, the third part comprises a second surface adjacent to the polarizer, and the first surface is in contact with the second surface. Through the arrangement of the structure, the overlapping area of the protective layer and the bonding layer can be further increased, so that the protective layer is further prevented from being separated from the flexible display screen.
In addition, the thickness of polaroid and the thickness of third portion equals, the polaroid includes keeping away from the third surface of first non-kink portion, the third portion includes keeping away from the fourth surface of second non-kink portion, the tie coat includes being close to the fifth surface of second non-kink portion, the third surface with the fourth surface all with fifth surface contact.
In addition, the thickness of the polarizer is greater than that of the third portion, the polarizer includes a third surface far away from the first non-bending portion, the third portion includes a fourth surface far away from the second non-bending portion, the bonding layer includes a fifth surface close to the second non-bending portion, and the third surface and the fourth surface are both in contact with the fifth surface. Through the arrangement of the structure, the adhesive layer fills up the fault difference between the polaroid and the third part, and no gap is formed among the polaroid, the protective layer and the adhesive layer, so that bubbles generated due to the gaps among the polaroid, the protective layer and the adhesive layer are avoided, and the reliability of the display panel is further improved.
In addition, the first non-bending part comprises a display area and a non-display area, the adhesive layer comprises a first adhesive layer arranged outside the display area, and the second part at least partially overlaps with the first adhesive layer; the first bonding layer has a grid-like structure; preferably, the grid in the grid-like structure is one or more of diamond-shaped or rectangular. With such a structure, the bubbles in the display panel can be discharged through the grid structure, and the reliability of the display panel is further improved.
In addition, the gaps between the meshes in the mesh-like structure are between 0.1 and 100 micrometers.
In addition, the depth of the mesh in the mesh-like structure is between 0.1 and 50 micrometers.
In addition, the functional structure comprises an elevating block and a composite adhesive tape which are arranged in a stacked mode, the elevating block is arranged close to the second non-bending portion, and the composite adhesive tape is arranged close to the first non-bending portion.
In addition, the functional structure further comprises a support film, the support film comprises a first support film and a second support film, the first support film is arranged between the composite adhesive tape and the first non-bending part, and the second support film is arranged between the heightening block and the second non-bending part.
In addition, the length range of the overlapping part of the projection of the functional structure in the thickness direction of the display panel and the projection of the bent part in the thickness direction of the display panel is between 0 and 0.5 millimeter.
In a second aspect, an embodiment of the present invention further provides a display device, including the display panel described above.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following advantages:
the functional structure is arranged between the first non-bending part and the second non-bending part, so that the functional structure can play a good supporting role, film cracks are avoided when the flexible display screen is subjected to drop test, and the reliability of the display panel is improved; because the juncture of first non-kink and kink is the border of flexible display screen, through setting up projection and the kink of functional structure in display panel thickness direction projection contact or at least partial overlap in display panel thickness direction, that is to say, functional structure's border and flexible display screen's border parallel and level or surpass the border of flexible display screen (function structure part stretches into the kink promptly), thereby can ensure that functional structure covers the lead wire and the encapsulated layer that are located flexible display screen border (first non-kink is in flexible display screen border, the kink is outside flexible display screen border), the structural strength of display panel in flexible display screen border has been strengthened, make lead wire and encapsulated layer in the flexible display screen border difficult production crackle, and then further improved display panel's reliability.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a display panel according to another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a display panel according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a display panel according to still another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
FIG. 6 is a top view of a bonding layer provided in accordance with an embodiment of the present invention;
FIG. 7 is a top view of a composite tape provided in accordance with an embodiment of the present invention.
Detailed Description
The current flexible display screen includes display area and non-display area, the back that the display screen was buckled to non-display area at least partly, form the kink, in order to reduce the frame of display screen, and non-kink includes display area and partial non-display area, therefore, the encapsulation layer of flexible display screen covers the display area and the at least partial non-display area of non-kink, and non-display area has the lead wire of connecting display area circuit and external circuit, encapsulation crackle and the cracked problem of lead wire appear easily in kink and non-kink juncture when falling the test.
In view of the above problems, the present invention provides a display panel and a display device, wherein the projection of the functional structure in the thickness direction of the display panel is in contact with or at least partially overlapped with the projection of the bending portion in the thickness direction of the display panel, and can cover the groove routing and the packaging layer in the boundary of the flexible display screen, so as to enhance the structural strength of the display panel in the boundary of the flexible display screen, so that cracks are not easily generated in the groove routing and the packaging layer in the boundary of the flexible display screen, and further improve the reliability of the display panel.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present invention in its various embodiments. However, the technical solution claimed in the present invention can be implemented without these technical details and various changes and modifications based on the following embodiments.
In a first aspect, an embodiment of the present invention relates to a display panel 100, which is specifically configured as shown in fig. 1, and includes:
the flexible display panel comprises a flexible display panel 1, wherein the flexible display panel 1 comprises a first non-bending portion 11, a second non-bending portion 12 and a bending portion 13 (the flexible display panel in a dashed line frame in fig. 1 is the bending portion 13) connecting the first non-bending portion 11 and the second non-bending portion 12, and the first non-bending portion 11 and the second non-bending portion 12 are oppositely arranged in the thickness direction of the display panel 100; it can be understood that the first non-bending portion 11 and/or the second non-bending portion 12 are display areas of a flexible display panel, and in the embodiment of the present invention, the first non-bending portion 11 includes a display area and a part of a non-display area, and the second bending portion includes a pad bonded to an external circuit. Optionally, the length of the second bent portion 12 is equal to or less than the length of the first non-bent portion 11. The functional structure 2 is disposed between the first non-bending portion 11 and the second non-bending portion 12, and a projection of the functional structure 2 in the thickness direction of the display panel 100 is in contact with or at least partially overlapped with a projection of the bending portion 13 in the thickness direction of the display panel 100.
It should be noted that the bending portion 13 in this embodiment can be regarded as a special film layer metal routing design performed by the flexible display 1 for bending the screen body, and the bending portion 13 includes a film layer bending region metal routing and a film layer non-bending region metal routing; the first non-bending portion 11 and the second non-bending portion 12 are metal traces outside the boundary of the special metal trace in the non-bending region.
It should be noted that the functional structure 2 in the present embodiment includes an elevation block 21 and a composite tape 22, the elevation block 21 is disposed adjacent to the second non-bent portion 12, and the composite tape 22 is disposed adjacent to the first non-bent portion 11.
Specifically, the material of the block 21 is usually PET (polyethylene terephthalate). As can be seen from fig. 1, before the step-up block 21 is not disposed, a hollow structure is disposed between the first non-bending portion 11 and the second non-bending portion 12, so that the first non-bending portion 11 and the second non-bending portion 12 are easily deformed by external pressing, and by disposing the step-up block 21 between the first non-bending portion 11 and the second non-bending portion 12, the step-up block 21 can play a good role in supporting, thereby effectively preventing the first non-bending portion 11 and the second non-bending portion 12 from being deformed, and improving the reliability of the display panel 100.
In the present embodiment, the composite tape 22 is generally a laminated structure, and the structure may be a foam, an intermediate layer (one or more of colloid, graphite, electromagnetic shielding film, PI, PET, and other materials), and a copper foil, which are sequentially laminated. It can be understood that the foam can play a role in buffering, so as to effectively alleviate the impact of the outside on the display panel 100; the copper foil can play a role in heat dissipation and dissipate heat generated by the display panel 100 during operation; the intermediate layer can improve the heat dissipation capability of the composite tape 22. The copper foil in the present embodiment is in contact with the block 21, and the foam is provided on the side of the intermediate layer away from the block 21.
Compared with the prior art, the functional structure 2 is arranged between the first non-bending part 11 and the second non-bending part 12, so that the functional structure 2 can play a good supporting role, film cracks are avoided when the flexible display screen 1 is subjected to drop test, and the reliability of the display panel 100 is improved; since the boundary between the first non-bending portion 11 and the bending portion 13 is the boundary L1 of the flexible display panel 1, the projection of the functional structure 2 in the thickness direction of the display panel 100 is in contact with or at least partially overlaps the projection of the bending portion 13 in the thickness direction of the display panel 100, that is, the boundary L2 of the functional structure 2 is flush with or exceeds the boundary L1 of the flexible display panel 1 (that is, the functional structure 2 partially extends into the bending portion 13), so that the functional structure 2 can cover the lead (not shown) and the encapsulation layer (not shown) located in the boundary L1 of the flexible display panel 1 (the first non-bending portion 11 is located in the boundary L1 of the flexible display panel, and the bending portion 13 is located outside the boundary L1 of the flexible display panel), the structural strength of the display panel 100 in the boundary L1 of the flexible display panel is enhanced, and cracks are not easily generated in the lead and the encapsulation layer in the boundary L1 of the flexible display panel, thereby further improving the reliability of the display panel 100.
Fig. 2 is a schematic structural diagram of a display panel according to another possible embodiment of the invention. The display panel 100 further includes an adhesive layer 3, a protective layer 4; the adhesive layer 3 is arranged on one side of the first non-bending part 11 away from the second non-bending part 12; the protective layer 4 includes a first portion 41 covering the first non-bent portion 11, a second portion 42 covering the bent portion 13 (the protective layer 4 in the dashed line in fig. 2 is the second portion 42), and a third portion 43 covering the second non-bent portion 12, the first portion 41 is disposed on a side of the first non-bent portion 11 away from the functional structure 2, the third portion 43 is disposed on a side of the second non-bent portion 12 away from the functional structure 2, and the second portion 42 at least partially overlaps the adhesive layer 3. Because of the design demand of narrow frame, the first part 41 of protective layer 4 and the overlap portion of first non-kink 11 are less, lead to protective layer 4 to separate with flexible display screen 1 easily, setting through above-mentioned structure, make protective layer 4 part and tie coat 3 overlap, thereby make tie coat 3 can play the effect of fixed protective layer 4, and then make protective layer 4 be difficult for separating with flexible display screen 1, the kink that the protective layer can protect flexible display screen is avoided the scratch, striking, and choose for use the protective layer of different thickness to be used for adjusting the kink and be in the neutral stress layer, make the kink be difficult to appear the fracture, display panel 100's reliability has further been improved. Optionally, the protective layer is UV curable glue, taffeta glue, or a tacky film.
Specifically, the material of the bonding layer 3 is a pressure-sensitive adhesive, which is an adhesive sensitive to pressure and does not come unstuck in the using process. Optionally, the material of tie coat 3 is OCA optical cement or OCR glue in this embodiment, and OCA optical cement or OCR glue all has strong viscidity, and the colour is transparent for bonding flexible display screen and supporting component, for example glass apron, flexible apron, simultaneously for the luminous performance of the flexible display screen that is located tie coat 3 below can not receive the influence of tie coat rete colour, thereby has improved display panel 100's display effect. It is understood that the material of the adhesive layer 3 is not particularly limited in this embodiment, and different materials may be selected to prepare the adhesive layer 3 according to actual requirements.
Fig. 3 is a schematic structural diagram of a display panel according to another possible embodiment of the invention. The functional structure 2 further comprises a support film 23, the support film 23 comprises a first support film 231 and a second support film 232, the first support film 231 is disposed between the first non-bending portion 11 and the functional structure 2, and the first support film 231 is partially in contact with the bending region 13; the second support film 232 is disposed between the second non-bent portion 12 and the functional structure 2, and the second support film 232 is partially in contact with the bent region 13. The support film 23 functions to support the respective film layers on the support film 23, and the support film 23 in this embodiment may be made of CPI (transparent polyimide), PI (polyimide), PET (high temperature polyester), PEN (polyethylene naphthalate), or the like. It should be noted that, since the light emitted from the light emitting layer passes through the support film 23, the support film 23 is made of a transparent material, so as to ensure that the optical performance of the display panel 100 is not affected by the support film 23, and the display effect of the display device manufactured in the subsequent process is improved.
With continued reference to fig. 3, the display panel 100 further includes a polarizer 6; polarizer 6 is disposed between adhesive layer 3 and first non-bent portion 11, polarizer 6 includes first surface 61 adjacent to third portion 43, third portion 43 includes second surface 431 adjacent to polarizer 6, and first surface 61 is in contact with second surface 431. Through the arrangement of the structure, the overlapping area of the protective layer 4 and the adhesive layer 3 can be further increased, so that the protective layer 4 is further prevented from being separated from the flexible display screen 1.
It should be noted that the thickness of the polarizer 6 shown in fig. 3 is equal to the thickness of the third portion 43, the polarizer 6 includes a third surface 62 far away from the first non-bending portion 11, the third portion 43 includes a fourth surface 432 far away from the second non-bending portion 12, the adhesive layer 3 includes a fifth surface 31 close to the second non-bending portion 12, and both the third surface 62 and the fourth surface 432 are in contact with the fifth surface 31. Through the arrangement of the structure, no gap is formed among the polarizer 6, the protective layer 4 and the bonding layer 3, so that bubbles generated due to the gaps among the polarizer 6, the protective layer 4 and the bonding layer 3 are avoided, and the reliability of the display panel 100 is further improved.
Fig. 4 is a schematic structural diagram of a display panel according to still another embodiment of the invention. Polarizer 6 has a thickness greater than that of third portion 43, polarizer 6 includes a third surface 62 far from first non-bending portion 11, third portion 43 includes a fourth surface 432 far from second non-bending portion 12, adhesive layer 3 includes a fifth surface 31 near second non-bending portion 12, and third surface 62 and fourth surface 432 are both in contact with fifth surface 31. Since the protection layer 4 has a certain fluidity, the thickness of the polarizer 6 may be greater than that of the third portion 43 during the manufacturing process of the display panel 100, that is, there is a break between the polarizer 6 and the third portion 43. Through the arrangement of the structure, the adhesive layer 3 fills up the offset between the polarizer 6 and the third part 43, and no gap is formed among the polarizer 6, the protective layer 4 and the adhesive layer 3, so that bubbles generated due to gaps among the polarizer 6, the protective layer 4 and the adhesive layer 3 are avoided, and the reliability of the display panel 100 is further improved.
Referring to fig. 5 and 6, the first non-bending portion 11 includes a display region 111 and a non-display region 112 (the first non-bending portion 11 in the virtual frame on the left side of L3 shown in fig. 5 is the display region 111, and the first non-bending portion 11 on the right side is the non-display region 112), the adhesive layer 3 includes a first adhesive layer 32 disposed outside the display region 111 (as can be seen from fig. 5, the first adhesive layer 32 covers the non-display region 112 and covers a part of the second portion 42), and the second portion 42 at least partially overlaps the first adhesive layer 32; the first adhesive layer 32 has a grid-like structure 320. With the arrangement of such a structure, the bonding bubbles between the first bonding layer 32 and the protection layer 4, the edge bubbles generated by the bonding of the first bonding layer 32 and the cover plate (not shown) with ink, and the bubbles generated by the gap between the polarizer 6, the protection layer 4 and the bonding layer 3 can be discharged through the grid structure, thereby further improving the reliability of the display panel 100. In addition, the adhesive layer 3 further includes a portion disposed in the display region 111, and the adhesive layer 3 of the portion does not need to have a grid-like structure, so as to ensure the structural strength of the adhesive layer 3 and improve the stability of the display panel 100.
It should be noted that the mesh in the bonding layer mesh-like structure 320 shown in fig. 6 has a rhombus shape, and in practical applications, the mesh may be any regular pattern or irregular pattern, such as a polygon of a triangle, a quadrangle, a pentagon, etc., and a circle, an ellipse, etc., and is not limited herein. It should be noted that, because the rhombus or the rectangle only has two sides, the shape is relatively simple, and the corresponding pattern of the process mold for forming the grid structure 320 is relatively simple, thereby reducing the manufacturing difficulty of the process mold.
It should be further noted that the grids shown in fig. 6 are arranged in an array, and in practical application, the grids may also be sequentially arranged along a preset direction, that is, the present embodiment does not specifically limit the arrangement manner of the grids in the grid structure, and may be set according to practical requirements. The grid structure is arranged on the bonding layer, so that bubbles can be removed, and in addition, when the grids in the grid structure are arranged in an array shape, the number of the grids in each column and the number of the rows are not specifically limited, so that the grid structure can be arranged according to actual requirements.
Preferably, the gaps between the grids in the grid-like structure are between 0.1 and 100 micrometers. By setting such a gap range, the manufacturing difficulty of the process mold for forming the grid structure can be reduced while effectively discharging the bubbles in the display panel 100.
More preferably, the depth of the grid in the grid-like structure is between 0.1 and 50 microns. Since the thickness of the adhesive layer 3 is generally 150 μm, by providing the mesh in such a depth range, it is possible to secure the structural strength of the adhesive layer 3 while effectively discharging bubbles in the display panel 100.
Referring to fig. 7, the length of the overlapping portion between the projection of the composite tape 22 in the thickness direction of the display panel 100 and the projection of the bending portion 13 in the thickness direction of the display panel 100 is in the range of 0 to 0.5 mm. Specifically, the composite tape 22 is not located in the boundary between the display area and the screen body, so that the laminated structure 2 can cover more screen body frames, and the risk of cracks generated by groove routing of the lower frame or the packaging dam is reduced. It should be noted that the width of the overlapping portion may be designed to be flush with the supporting film 23 according to the precision of the display panel 100, or may be designed to be retracted 0 to 0.5 mm from the groove edge of the supporting film 23, which is reserved for material tolerance and process precision, and ensures that the bending of the flexible display screen is not affected.
In another aspect, an embodiment of the invention relates to a display device including the display panel mentioned in the above embodiments.
The display panel may be a flexible organic light emitting display panel or a non-flexible organic light emitting display panel. The light emitting mode of the organic light emitting display panel may be top emission, bottom emission, or dual emission. Display panel can also encapsulate in display device, and display device can use in intelligent wearing equipment (like intelligent bracelet, intelligent wrist-watch), also can use in smart mobile phone, panel computer, display equipment.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A display panel, comprising:
the flexible display screen comprises a first non-bending part, a second non-bending part and a bending part connecting the first non-bending part and the second non-bending part, wherein the first non-bending part and the second non-bending part are oppositely arranged in the thickness direction of the display panel;
the functional structure is arranged between the first non-bending part and the second non-bending part, and the projection of the functional structure in the thickness direction of the display panel is in contact with or at least partially overlapped with the projection of the bending part in the thickness direction of the display panel.
2. The display panel according to claim 1, further comprising an adhesive layer and a protective layer;
the bonding layer is arranged on one side, far away from the second non-bending part, of the first non-bending part;
the protective layer comprises a first portion, a second portion and a third portion, the first portion covers the first non-bending portion, the second portion covers the bending portion, the third portion covers the second non-bending portion, the first portion is arranged on one side, away from the functional structure, of the first non-bending portion, the third portion is arranged on one side, away from the functional structure, of the second non-bending portion, and at least part of the second portion is overlapped with the bonding layer.
3. The display panel according to claim 2, wherein the display panel further comprises a polarizer;
the polarizer is arranged between the bonding layer and the first non-bending part, the polarizer comprises a first surface adjacent to the third part, the third part comprises a second surface adjacent to the polarizer, and the first surface is in contact with the second surface.
4. The display panel according to claim 3, wherein the polarizer has a thickness equal to that of the third portion, the polarizer includes a third surface far away from the first non-bending portion, the third portion includes a fourth surface far away from the second non-bending portion, the adhesive layer includes a fifth surface close to the second non-bending portion, and the third surface and the fourth surface are both in contact with the fifth surface.
5. The display panel according to claim 3, wherein the polarizer has a thickness greater than that of the third portion, the polarizer includes a third surface far away from the first non-bending portion, the third portion includes a fourth surface far away from the second non-bending portion, the adhesive layer includes a fifth surface close to the second non-bending portion, and the third surface and the fourth surface are both in contact with the fifth surface.
6. The display panel according to any one of claims 2 to 5, wherein the first non-bending portion comprises a display region and a non-display region, the adhesive layer comprises a first adhesive layer disposed outside the display region, and the second portion at least partially overlaps the first adhesive layer; the first bonding layer has a grid-like structure;
preferably, the grid in the grid-like structure is one or more of diamond-shaped or rectangular;
preferably, the gaps between the meshes in the grid-like structure are between 0.1 and 100 microns;
preferably, the depth of the grid in the grid-like structure is between 0.1 and 50 microns.
7. The display panel according to claim 1, wherein the functional structure comprises an elevation block and a composite tape, the elevation block and the composite tape being stacked, the elevation block being disposed adjacent to the second non-bending portion, and the composite tape being disposed adjacent to the first non-bending portion.
8. The display panel according to claim 7, wherein the functional structure further comprises a support film comprising a first support film and a second support film, the first support film being disposed between the composite tape and the first non-bending portion, and the second support film being disposed between the block-up block and the second non-bending portion.
9. The display panel according to claim 1, wherein a length of an overlapping portion of a projection of the functional structure in the thickness direction of the display panel and a projection of the bent portion in the thickness direction of the display panel ranges from 0 to 0.5 mm.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN202010943574.8A CN111968521A (en) | 2020-09-09 | 2020-09-09 | Display panel and display device |
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| CN202010943574.8A CN111968521A (en) | 2020-09-09 | 2020-09-09 | Display panel and display device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112489567A (en) * | 2020-12-29 | 2021-03-12 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN112489559A (en) * | 2020-11-27 | 2021-03-12 | 合肥维信诺科技有限公司 | Supporting structure and display device |
| CN112530295A (en) * | 2020-12-28 | 2021-03-19 | 厦门天马微电子有限公司 | Display device |
| CN113112913A (en) * | 2021-03-18 | 2021-07-13 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN113436530A (en) * | 2021-06-16 | 2021-09-24 | 武汉华星光电半导体显示技术有限公司 | Display module, manufacturing method thereof and display device |
| CN114005365A (en) * | 2021-11-02 | 2022-02-01 | 武汉天马微电子有限公司 | Protection film and display screen subassembly |
| US12005684B2 (en) | 2020-12-29 | 2024-06-11 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display panel and display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347678A (en) * | 2013-07-30 | 2015-02-11 | 乐金显示有限公司 | Display device and method of manufacturing the same |
| KR20170047713A (en) * | 2015-10-23 | 2017-05-08 | 엘지디스플레이 주식회사 | Flexible display device |
| CN109065570A (en) * | 2018-07-18 | 2018-12-21 | 昆山国显光电有限公司 | Display panel and display device |
| US20190259965A1 (en) * | 2018-02-20 | 2019-08-22 | Samsung Display Co., Ltd. | Display device |
| US20190305234A1 (en) * | 2018-04-02 | 2019-10-03 | Samsung Display Co., Ltd. | Display device and method for manufacturing display device |
| CN209746970U (en) * | 2019-03-18 | 2019-12-06 | Oppo广东移动通信有限公司 | Electronic device and foldable display device |
| CN209765931U (en) * | 2019-02-20 | 2019-12-10 | Oppo广东移动通信有限公司 | Flexible laminated adhesive tape and electronic device |
| CN110570772A (en) * | 2019-09-17 | 2019-12-13 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display device and preparation method thereof |
-
2020
- 2020-09-09 CN CN202010943574.8A patent/CN111968521A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347678A (en) * | 2013-07-30 | 2015-02-11 | 乐金显示有限公司 | Display device and method of manufacturing the same |
| KR20170047713A (en) * | 2015-10-23 | 2017-05-08 | 엘지디스플레이 주식회사 | Flexible display device |
| US20190259965A1 (en) * | 2018-02-20 | 2019-08-22 | Samsung Display Co., Ltd. | Display device |
| US20190305234A1 (en) * | 2018-04-02 | 2019-10-03 | Samsung Display Co., Ltd. | Display device and method for manufacturing display device |
| CN109065570A (en) * | 2018-07-18 | 2018-12-21 | 昆山国显光电有限公司 | Display panel and display device |
| CN209765931U (en) * | 2019-02-20 | 2019-12-10 | Oppo广东移动通信有限公司 | Flexible laminated adhesive tape and electronic device |
| CN209746970U (en) * | 2019-03-18 | 2019-12-06 | Oppo广东移动通信有限公司 | Electronic device and foldable display device |
| CN110570772A (en) * | 2019-09-17 | 2019-12-13 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display device and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112489559A (en) * | 2020-11-27 | 2021-03-12 | 合肥维信诺科技有限公司 | Supporting structure and display device |
| CN112489559B (en) * | 2020-11-27 | 2022-06-07 | 合肥维信诺科技有限公司 | Supporting structure and display device |
| CN112530295A (en) * | 2020-12-28 | 2021-03-19 | 厦门天马微电子有限公司 | Display device |
| CN112489567A (en) * | 2020-12-29 | 2021-03-12 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| WO2022141352A1 (en) * | 2020-12-29 | 2022-07-07 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| US12005684B2 (en) | 2020-12-29 | 2024-06-11 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display panel and display device |
| CN113112913A (en) * | 2021-03-18 | 2021-07-13 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN113436530A (en) * | 2021-06-16 | 2021-09-24 | 武汉华星光电半导体显示技术有限公司 | Display module, manufacturing method thereof and display device |
| CN114005365A (en) * | 2021-11-02 | 2022-02-01 | 武汉天马微电子有限公司 | Protection film and display screen subassembly |
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