CN111105717A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN111105717A CN111105717A CN202010037436.3A CN202010037436A CN111105717A CN 111105717 A CN111105717 A CN 111105717A CN 202010037436 A CN202010037436 A CN 202010037436A CN 111105717 A CN111105717 A CN 111105717A
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- polarizer
- display panel
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- grooves
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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
Abstract
The present invention provides a display panel and a display device, the display panel including: a substrate; the first elastic structure film layer is arranged on the substrate; and the polaroid is arranged on one side, far away from the substrate, of the first elastic structure film layer and comprises a sectional type connecting structure. And the second elastic structure film layer is arranged on one side of the polaroid, which is far away from the substrate. The technical scheme of the invention can fully release the stress in the polaroid and avoid the polaroid from cracking and even falling off from the adjacent elastic structure film layer.
Description
Technical Field
The invention relates to the field of display, in particular to a display panel and a display device.
Background
At present, with scientific progress, flexible end products are gradually developing towards the direction of bending and ultra-thinning.
In the process of dynamically bending the flexible product, the polaroid has certain mechanical strength and inconsistent bending capability between adjacent elastic structure films, so that the adhesion between the polaroid and the elastic structure films is poor, the film separation phenomenon easily occurs, and the film is cracked or falls off even after being bent for many times, so that the flexible product fails.
Disclosure of Invention
In view of this, embodiments of the present invention provide a display panel and a display device. The problem of rete separation between polaroid and the elastic construction rete is solved.
In a first aspect, an embodiment of the present invention provides a display panel, including: a substrate; the first elastic structure film layer is arranged on the substrate; and the polaroid is arranged on one side, far away from the substrate, of the first elastic structure film layer and comprises a sectional type connecting structure. And the second elastic structure film layer is arranged on one side of the polaroid, which is far away from the substrate.
In some embodiments of the present invention, the segmented attachment structure is located on a protective layer of the polarizer.
In some embodiments of the present invention, the segmented connection structure at least includes a first segment polarizer and a second segment polarizer, the first segment polarizer includes a plurality of grooves, the second segment polarizer includes a plurality of protrusions, and the protrusions and the grooves are mutually engaged.
In some embodiments of the invention, each groove of the plurality of grooves is the same shape and size.
In some embodiments of the present invention, the projection of the protrusions on the polarizer is in the shape of a "T".
In some embodiments of the present invention, the projection of the protrusion on the polarizer is an inverted trapezoid.
In some embodiments of the present invention, the passivation layer includes a first passivation layer and a second passivation layer, the first passivation layer is disposed on the second passivation layer on a side away from the substrate, and the segmented connection structure is disposed on the first passivation layer and the second passivation layer.
In some embodiments of the present invention, the segmented connection structure further includes a third segment of polarizer, where the third segment of polarizer includes a first edge and a second edge, the first edge includes a plurality of protrusions, the second edge includes a plurality of grooves, the plurality of protrusions of the first edge are mutually engaged with the plurality of grooves of the first segment of polarizer, and the plurality of grooves of the second edge are mutually engaged with the plurality of protrusions of the second segment of polarizer.
In some embodiments of the present invention, the plurality of grooves and the plurality of protrusions are bent along the same axis, and the display panel is bent around the axis.
In some embodiments of the present invention, the groove and the protrusion are located in the bending region of the display panel.
In some embodiments of the present invention, the first elastic structural film layer includes a first optical adhesive, and the second elastic structural film layer includes a touch layer, a film encapsulation layer and/or a second optical adhesive.
In a second aspect, embodiments of the present invention provide a display device including the above display panel.
The embodiment of the invention provides a display panel and a display device, wherein a sectional type connecting structure is arranged in a polaroid, so that the sectional type connecting structure can fully release stress in the polaroid in the bending process of the display panel and the display device, and film separation between the polaroid and an adjacent elastic structure film layer is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention.
Fig. 2A is a schematic structural diagram of a polarizer according to an embodiment of the present invention.
Fig. 2B is a schematic structural diagram of a polarizer according to another embodiment of the present invention.
Fig. 2C is a schematic structural diagram of a polarizer according to another embodiment of the present invention.
Fig. 3A is a schematic top view illustrating a polarizer according to an embodiment of the invention.
Fig. 3B is a schematic top view of a polarizer according to another embodiment of the present invention.
Fig. 4 is a schematic top view illustrating a polarizer according to another embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a display panel 100 according to an embodiment of the invention.
Fig. 2A is a schematic structural diagram of a polarizer 130 according to an embodiment of the invention.
As shown in fig. 1, the display panel 100 includes: the film comprises a substrate 110, a first elastic structural film 120, a polarizer 130 and a second elastic structural film 140. The first elastic structure film layer 120 is disposed on the substrate 110. The polarizer 130 is disposed on a side of the first elastic structure film 120 away from the substrate 110, wherein the polarizer 130 includes a segmented connection structure. The second elastic structure film 140 is disposed on a side of the polarizer 130 away from the substrate 110.
In particular, the first and second elastic structural film layers 120, 140 may be identical in structure, for example, they may both include an optical glue layer. The first elastic structure film layer 120 and the second elastic structure film layer 140 may have different structures, and the second elastic structure film layer 120 may further include a touch layer and an optical adhesive layer, or a thin film encapsulation layer and an optical adhesive. The embodiment of the present invention is not limited thereto.
As shown in fig. 2A, the polarizer 130 may include a first protective layer 131, a polarizing layer 132, and a second protective layer 133, which are sequentially stacked in the direction from the polarizer 130 to the substrate 110. In order to protect the physical properties of the polarizing layer 132, the polarizing layer 132 has a polarizing function, and a first protective layer 131 and a second protective layer 133 having high light transmittance, good water resistance and a certain mechanical strength are respectively combined on both sides of the polarizing layer 132 for protection. The polarizing layer 132 may be a polyvinyl alcohol (PVA) film, and the first protective layer 131 and the second protective layer 133 may be independently one of a TAC (triacetyl cellulose) film or a PMMA (polymethyl methacrylate) film, respectively.
According to the embodiment of the invention, the segmented connection structure is arranged in the polaroid, so that the polaroids are in a separated and connected state. In the process of bending the display panel, the sectional type connecting structure can fully release the stress in the polaroid, and prevent the polaroid from cracking or even falling off from the adjacent elastic structure film layer.
Fig. 2B is a schematic structural diagram of a polarizer 130 according to another embodiment of the invention.
Fig. 2C is a schematic structural diagram of a polarizer 130 according to another embodiment of the invention.
According to the embodiment of the present invention, the segmented connection structure is located on the first protective layer 131 and/or the second protective layer 133 of the polarizer 130, so that the optical characteristics of the polarizer 130 are not affected.
As shown in FIG. 2B, the segmented interconnect structure may be located on the first protective layer 1310 of the polarizer 130. As shown in fig. 1 and fig. 2B, the segmented connection structure may be located on the first protection layer 1310 of the polarizer 130, so as to reduce the mechanical strength of the first protection layer 1310, reduce the difference in bending capability between the polarizer 130 and the adjacent second elastic structure film 140, enhance the adhesion between the first protection layer 131 and the adjacent second elastic structure film 140, avoid the film separation between the first protection layer 131 and the adjacent second elastic structure film 140, and improve the bending capability of the display panel 100. The segmented connection structure may also be located on the second protection layer 1330 of the polarizer 130. The structure and function of the second protection layer 1330 of the polarizer 130 with the segmented connecting structure are similar to those of the first protection layer 1310 of the polarizer 130 with the segmented connecting structure, and thus are not described in detail herein.
As shown in fig. 1 and fig. 2A, the segmented connection structure may be located on the first protection layer 131 and the second protection layer 133 of the polarizer 130, so as to reduce the mechanical strength of the first protection layer 131 and the second protection layer 133, better reduce the difference in bending capability between the polarizer 130 and the adjacent first elastic structure film layer 120 and second elastic structure film layer 140, enhance the adhesion between the first protection layer 131 and the second protection layer 133 and the first elastic structure film layer 120 and the second elastic structure film layer 140, avoid the film separation between the first protection layer 131 and the second protection layer 133 and the first elastic structure film layer 120 and the second elastic structure film layer 140, and better improve the bending capability of the display panel 100.
In addition, the segmented connection structure in the first protection layer 131 and the segmented connection structure in the second protection layer 133 are independent from each other and are not directly related. As shown in fig. 2A and 2C, the segmented connection structures on the first protective layer 131 and the second protective layer 133 may be arranged correspondingly, or the segmented connection structures on the first protective layer 1311 and the second protective layer 1331 may be arranged alternately. The embodiment of the present invention is not limited thereto.
Alternatively, the polarizer 130 may also include a first protective layer 131 and a polarizing layer 132, which are sequentially stacked in the direction from the polarizer 130 to the substrate 110, but do not include the second protective layer 133.
According to the embodiment of the invention, the segmented connection structure at least comprises a first segment polarizer 134 and a second segment polarizer 135, wherein the first segment polarizer 134 comprises a plurality of grooves, and the second segment polarizer 135 comprises a plurality of protrusions, and the protrusions and the grooves are mutually matched in a clamping manner.
Based on the embodiment of the invention, because the first section of the polaroid and the second section of the polaroid are independent from each other, when the display panel is dynamically bent, the deformation generated between the first section of the polaroid and the second section of the polaroid is small, the stress change is relatively small, the mechanical strength of the polaroid is reduced, and the risk of film layer separation between the polaroid and the first elastic structure film layer and the second elastic structure film layer caused by the adhesion problem is reduced. And moreover, the plurality of grooves of the first section of polaroid and the plurality of protrusions of the second section of polaroid can be clamped and matched, so that the first section of polaroid and the second section of polaroid are mutually pulled, and the phenomena of separation and dislocation of the sections of polaroids are avoided.
According to the embodiment of the present invention, the shape and size of each groove are the same, and thus the shape and size of each protrusion are also the same, which may make the polarizer 130 more convenient to form and improve the forming efficiency.
Fig. 3A is a schematic top view illustrating a polarizer 130 according to an embodiment of the invention.
As shown in FIG. 3A, the projection of the grooves and protrusions on the polarizer 130 may be shaped as a "T". The first polarizer 134 may include a plurality of "T" shaped grooves, and the second polarizer 135 may include a plurality of "T" shaped protrusions, which are engaged with each other to pull the first polarizer 134 and the second polarizer 135, thereby preventing the first polarizer 134 and the second polarizer 135 from being separated and dislocated.
In the embodiment of the invention, when the display panel 100 is dynamically bent, each pair of the "T" shaped groove and the "T" shaped protrusion in the first polarizer 134 and the second polarizer 135 that are engaged and matched with each other is bent along the same axis AB, and the display panel 100 is bent around the axis AB. Therefore, the first section of polarizer 134 and the second section of polarizer 135 can be ensured to return to the original state after being bent, and the first section of polarizer 134 and the second section of polarizer 135 are prevented from being separated and dislocated from each other.
In the embodiment of the present invention, the "T" shaped groove and the "T" shaped protrusion are both located in the bending region 1300 of the display panel 100. Therefore, the design of the sectional type connecting structure can be reduced on the basis of avoiding the separation of the polaroid and the adjacent elastic structure film layer, and the cost is reduced.
According to an embodiment of the present invention, the segmented connection structure further includes a third polarizer segment, where the third polarizer segment includes a first edge and a second edge, the first edge includes a plurality of protrusions, the second edge includes a plurality of grooves, the plurality of protrusions of the first edge are engaged with the plurality of grooves of the first polarizer segment 1340, and the plurality of grooves of the second edge are engaged with the plurality of protrusions of the second polarizer segment 1350.
Fig. 3B is a schematic top view of a polarizer 130 according to another embodiment of the invention. In this embodiment, the first polarizer 1340, the second polarizer 1350 and the bending region 1301 are similar to the first polarizer 134, the second polarizer 135 and the bending region 1300 of the embodiment shown in FIG. 3A, respectively, and thus are not described again.
As shown in FIG. 3B, the segmented connecting structure may further include a third polarizer segment 136, where the third polarizer segment 136 includes a first edge and a second edge. A first edge of third polarizer 136 may include a plurality of "T" shaped protrusions that snap fit into a plurality of "T" shaped recesses in first polarizer 1340, while a second edge of third polarizer 136 may include a plurality of "T" shaped recesses that snap fit into a plurality of "T" shaped protrusions in second polarizer 1350. First polarizer 1340 and second polarizer 1350 are connected by third polarizer 136. Alternatively, the second polarizer 1350 may include a plurality of "T" shaped grooves, and the third polarizer 136 may include a plurality of "T" shaped protrusions that engage and mate with the plurality of "T" shaped grooves of the second polarizer 1350. The embodiment of the present invention is not limited thereto. The segmented connection structure may also include a fourth segment of polarizer, and the number of segments of the segmented connection structure may be determined according to the proportion of the bending region 1301 in the display panel 100, which is not limited in the embodiment of the present invention.
Based on the embodiment of the invention, the third section of the polaroid or even more sections of polaroids are arranged between the first section of the polaroid and the second section of the polaroid, so that the stress change of the polaroid is smaller when the display panel is dynamically bent, and the film separation risk caused by the adhesion between the polaroid and the first elastic structure film and the second elastic structure film is better reduced.
When the display panel 100 is dynamically bent, each pair of the T-shaped grooves and T-shaped protrusions of the first polarizer 1340 and the third polarizer 136 is bent along the same axis EF, and each pair of the T-shaped grooves and T-shaped protrusions of the third polarizer 136 and the second polarizer 1350 is bent along the same axis CD. The display panel 100 is bent around the axis EF and the axis CD with reference to the axis EF and the axis CD. Therefore, the original state of each section of the polaroid can be restored after the polaroid is bent, and the polaroids are prevented from being separated and dislocated.
Fig. 4 is a schematic top view illustrating a polarizer according to another embodiment of the present invention. As shown in fig. 4, the projection of the groove and the protrusion on the polarizer 130 may have a shape of an inverted trapezoid. The engagement matching between the first section of polarizer 137 and the second section of polarizer 138, and the second section of polarizer 138 and the third section of polarizer 138 are similar to the engagement matching between the first section of polarizer 134 and the second section of polarizer 135, and between the second section of polarizer 135 and the third section of polarizer 136, respectively, and thus the details are not repeated herein.
Fig. 5 is a schematic structural diagram of a display panel 500 according to another embodiment of the invention. In this embodiment, the substrate 510 and the second elastic structural film 540 are similar to the substrate 110 and the second elastic structural film 140 of the embodiment shown in fig. 1, respectively, and the polarizer 530 is similar to the polarizer 130 in fig. 2A to 4, and therefore, the description thereof is omitted.
In this embodiment, the display panel 500 includes a substrate 510, an OLED layer 570, a first elastic structure film layer 520, a polarizer 530, a second elastic structure film layer 540, and a cover plate 560 stacked from bottom to top. The substrate 510 is a flexible substrate, and the material may be flexible Polyimide (PI). The first elastic structure film layer 520 includes an optical adhesive 541 and a touch layer 550, the second elastic structure film layer 540 is an optical adhesive layer, the polarizer 530 includes a first protection layer 531, a polarizing layer 532 and a second protection layer 533, and a sectional connection structure is disposed in the first protection layer 531 and the second protection layer 533. The cover plate 560 may be a film material such as Colorless Polyimide (CPI) or polyethylene terephthalate (PET), or a plate material such as a glass cover plate. When the display panel 500 is dynamically bent, the arrangement of the segment-type connection structure in the polarizer 530 reduces the risk that a gap or even a separation is easily generated between the first protection layer 531 and the second elastic structure film 540, and between the second protection layer 533 and the first elastic structure film 520 due to the adhesion.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A display panel, comprising:
a substrate;
the first elastic structure film layer is arranged on the substrate;
the polaroid is arranged on one side, far away from the substrate, of the first elastic structure film layer, and comprises a sectional type connecting structure;
and the second elastic structure film layer is arranged on one side of the polaroid, which is far away from the substrate.
2. The display panel of claim 1, wherein the segmented connection structure comprises at least a first segment polarizer and a second segment polarizer, the first segment polarizer comprises a plurality of grooves, the second segment polarizer comprises a plurality of protrusions, and the protrusions and the grooves are mutually matched in a clamping manner.
3. The display panel of claim 2, wherein each of the plurality of grooves is the same shape and size.
4. The display panel according to claim 2, wherein the projection of the protrusion on the polarizer has a shape of a "T" or an inverted trapezoid.
5. The display panel of claim 2, wherein the segmented connection structure further comprises a third polarizer segment, the third polarizer segment comprises a first edge and a second edge, the first edge comprises a plurality of protrusions, the second edge comprises a plurality of grooves, the plurality of protrusions of the first edge are mutually matched with the plurality of grooves of the first polarizer segment in a clamping manner, and the plurality of grooves of the second edge are mutually matched with the plurality of protrusions of the second polarizer segment in a clamping manner.
6. The display panel of claim 1, wherein the segmented attachment structure is located on a protective layer of the polarizer,
preferably, the protective layer comprises a first protective layer and a second protective layer, the first protective layer is arranged on the second protective layer on the side far away from the substrate, and the segmented connecting structure is arranged on the first protective layer and the second protective layer.
7. The display panel according to any one of claims 2 to 6, wherein the plurality of grooves and the plurality of projections are bent along a same axis about which the display panel is bent.
8. The display panel according to any one of claims 2 to 6, wherein the groove and the protrusion are located in a bending region of the display panel.
9. The display panel according to any one of claims 1 to 6, wherein the first elastic structural film layer comprises a first optical glue, and the second elastic structural film layer comprises a touch layer, a thin film encapsulation layer and/or a second optical glue.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN202010037436.3A CN111105717B (en) | 2020-01-14 | 2020-01-14 | Display panel and display device |
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| CN202010037436.3A CN111105717B (en) | 2020-01-14 | 2020-01-14 | Display panel and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI801985B (en) * | 2021-08-26 | 2023-05-11 | 大陸商業成科技（成都）有限公司 | Film display |
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