CN210836907U - Flexible display module - Google Patents
Flexible display module Download PDFInfo
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- CN210836907U CN210836907U CN202020065853.4U CN202020065853U CN210836907U CN 210836907 U CN210836907 U CN 210836907U CN 202020065853 U CN202020065853 U CN 202020065853U CN 210836907 U CN210836907 U CN 210836907U
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Abstract
An embodiment of the utility model provides a flexible display module, this flexible display module includes display layer and first protective layer, the display layer includes at least one bending zone, the display layer still includes first surface and second surface, the first surface of display layer is close to the light-emitting surface of flexible display module; the first protective layer is located on the second surface of the display layer. This technical scheme sets up first protective layer on the second surface on the display layer, can effectively disperse the tensile stress in district of buckling, avoids each rete to take place to slide, keeps the good bending performance of flexible display module assembly.
Description
Technical Field
The embodiment of the utility model provides a relate to flexible display technical field, especially relate to a flexible display module assembly.
Background
An Active-matrix organic light emitting diode (AMOLED) has a wider viewing angle, a higher refresh rate and a thinner size, has been successfully applied to high-end smart models, is an important window for man-machine interaction in the future intelligent era, and is called as a next generation display technology.
Along with the development of flexible display technology, for the folding or flexible application that satisfies flexible display panel, at present, contain a plurality of retes in the flexible display module, have the bending zone, because there is stress concentration in the bending zone, can lead to usually taking place to slide or separate between each rete in the bending zone, just so influenced the reliability and the life-span of flexible display module, influence the display effect of flexible display screen.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flexible display module to avoid flexible display module each rete to take place the problem of sliding when buckling.
The embodiment of the utility model provides a flexible display module, this flexible display module includes the display layer, the display layer includes at least one bending zone, the display layer still includes first surface and second surface, the first surface of display layer is close to the light-emitting surface of flexible display module;
a first protective layer on a second surface of the display layer.
Optionally, the composition material of the first protection layer includes at least one of metal, organic material and inorganic material, and the thickness h1 of the first protection layer satisfies 10um ≤ h1 ≤ 200 um.
Optionally, at least one first groove structure is formed on a side surface of the first protection layer facing the bending region, the at least one bending region and the at least one first groove structure are arranged in a one-to-one correspondence manner, and an orthographic projection of the first groove structure on the display layer is located in the corresponding bending region.
Optionally, the first groove structure includes a plurality of first grooves arranged in an array.
Optionally, the bending region has a bending axis, a dimension of the first groove along a direction of the bending axis is greater than or equal to a dimension of the first groove along a first direction, and the first direction intersects with the direction of the bending axis.
Optionally, the first groove is rectangular, square, triangular or circular.
Optionally, the display device further includes a second protection layer, the second protection layer is located between the first protection layer and the display layer, at least one opening structure is formed on a side surface of the second protection layer facing the bending region, the at least one opening structure and the at least one bending region are arranged in a one-to-one correspondence manner, and an orthographic projection of the opening structure on the display layer is located in the corresponding bending region.
Optionally, the bending region has a bending axis, and a dimension of the opening structure along a direction of the bending axis is greater than or equal to a dimension of the opening structure along a first direction, and the first direction intersects with the direction of the bending axis.
Optionally, the opening structure is rectangular, square, triangular or circular.
Optionally, the second protection layer comprises a viscous material, the viscosity μ of the second protection layer satisfies 1.0gf/25mm ≤ μ ≤ 2050gf/25mm, and the thickness h2 of the second protection layer satisfies 10um ≤ h2 ≤ 200 um.
The embodiment of the utility model provides an embodiment flexible display module assembly includes display layer and first protective layer, and the display layer includes at least one bending zone, and the display layer still includes first surface and second surface, and the first surface of display layer is close to the light-emitting surface of flexible display module assembly; the first protective layer is located on the second surface of the display layer. This technical scheme sets up first protective layer on the second surface on the display layer, can effectively disperse the tensile stress in the district of buckling, avoids each rete to take place to slide, keeps the good bending performance of flexible display module assembly, has solved among the prior art flexible display module assembly display layer and has leaded to each rete of district of buckling to take place to slide or separate the scheduling problem in the district stress concentration of buckling.
Drawings
Fig. 1 is a structural diagram of a flexible display module according to a first embodiment of the present invention;
fig. 2 is a structural diagram of a flexible display module according to a second embodiment of the present invention;
fig. 3 is another structural diagram of a flexible display module according to an embodiment of the present invention;
fig. 4 is another structural diagram of a flexible display module according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a structural diagram of a flexible display module according to an embodiment of the present invention, as shown in fig. 1, the flexible display module includes a display layer 10 and a first protection layer 20, the display layer 10 includes at least one bending region B, the display layer 10 further includes a first surface and a second surface, and the first surface of the display layer 10 is close to a light emitting surface of the flexible display module; the first protective layer 20 is positioned on the second surface of the display layer 10.
Wherein, the second of the display layer 10 of flexible display module assembly is provided with first protective layer 20 on the surface, has played the effect that supports display layer 10, has improved the toughness of flexible display module assembly for flexible display panel keeps good planarization in the district of buckling. When the display layer 10 is bent in the bending region B, the first protection layer 20 can effectively disperse the stretching pressure in the bending region, so that slippage between the films of the display layer 10 is avoided, and the good bending performance of the flexible display module is maintained, thereby reducing the abnormal display probability of the flexible display panel caused by folding and prolonging the service life of the flexible display panel.
Optionally, the first protection layer 20 is made of at least one of metal, organic material and inorganic material, and the thickness h1 of the first protection layer 20 is 10um or more and h1 or more and 200um or less.
The first protective layer 20 may be a metal material, an organic material, or an inorganic material having toughness, and for example, a metal material such as aluminum has high hardness and good toughness, and may be selected as a suitable material for the first protective layer 20. The first protective layer 20 may also be an organic material such as polyimide, polyethylene terephthalate, or the like. Wherein, the thickness of the first protective layer 20 is thinner, and the thickness h1 is within the range of 10um or more and 200um or less than h1, which reduces the thickness of the whole flexible display module, so that the flexible display module is light and portable.
Optionally, referring to fig. 1, at least one first groove structure 21 is formed on a side surface of the first protection layer 20 facing the bending region B, the at least one bending region B and the at least one first groove structure 21 are arranged in a one-to-one correspondence manner, and an orthographic projection of the first groove structure 21 on the display layer 10 is located in the corresponding bending region B.
It should be noted that at least one first groove structure 21 is formed on one side of the first protection layer 10 facing the bending region B, so that the bending stress of the flexible display module during bending can be effectively reduced, and in addition, the flexible display module can be more easily compressed due to the arrangement of the first groove structure 21, thereby avoiding the mechanical damage to the outside. Wherein a plurality of first groove structures 21 may be provided for a plurality of folds. The number of the first groove structures 21 is set according to the actual folding requirements, and is not limited herein.
Optionally, with continued reference to fig. 1, the first groove structure 21 includes a plurality of first grooves 211 arranged in an array.
Alternatively, the first recess 211 is rectangular, square, triangular, or circular.
Optionally, the bending region B has a bending axis AC, and a dimension of the first groove 211 in a direction of the bending axis AC is greater than or equal to a dimension of the first groove 211 in a first direction, and the first direction intersects with the direction of the bending axis AC.
Wherein, first recess 211 shape can be rectangle, square, triangle-shaped and circular, selects the first recess 211 of different shapes according to the condition of actual folding, and the setting of first recess 211 plays the effect of the pressure stress of dispersion bending zone B when flexible display module group buckles. It should be explained that, when the shape of the first groove 211 is rectangular, square, or circular, the size of the first groove 211 along the direction of the folding axis AC is greater than or equal to the size of the first groove 211 along the first direction, the effect of dispersing stress of the flexible display module in the bending area is more obvious, the bending performance of the flexible display module is better, and the bending performance of the flexible display module is poorer when compared with the case that the first groove 211 is triangular.
In the embodiment of the present invention, the flexible display module includes a display layer 10 and a first protection layer 20, the display layer 10 includes at least one bending region B, the display layer 10 further includes a first surface and a second surface, and the first surface of the display layer 10 is close to the light emitting surface of the flexible display module; the first protective layer 20 is positioned on the second surface of the display layer 10. At least one first groove structure 21 is formed on a side surface of the first protection layer 20 facing the bending region B, and the first groove structure 21 includes a plurality of first grooves 211 arranged in an array. The problem of there is stress concentration in the district of buckling on the display layer among the flexible display module, can lead to taking place to slide or separate etc. between each rete in the district of buckling usually is solved, and this embodiment sets up first protective layer 20 on the second surface on the display layer, is provided with a plurality of first recesses 21 on first protective layer 20, and the tensile stress in district of can effectively dispersing buckling avoids each rete to take place to slide, keeps the good bending property of flexible display module.
Example two
Fig. 2 is a structural diagram of a flexible display module according to a second embodiment of the present invention, as shown in fig. 2, on the basis of the above-mentioned embodiment, further optimization is performed, optionally, a second protective layer 30 is further included, the second protective layer 30 is located between the first protective layer 20 and the display layer 10, at least one opening structure 31 is formed on a side surface of the second protective layer 30 facing the bending region B, the at least one opening structure 31 and the at least one bending region B are in one-to-one correspondence, and an orthographic projection of the opening structure 31 on the display layer 10 is located in the corresponding bending region B.
It should be noted that, the second protective layer 30 is added between the first protective layer 20 and the display layer 10, so as to further improve the toughness of the flexible display module, and make the flexible display panel maintain good flatness in the bending region. Second protective layer 20 forms at least one open structure 31 towards one side of bending zone B, and when the display layer 10 took place to fold, open structure 31 can further disperse the tensile pressure in bending zone, has avoided taking place to slide between each rete, further keeps the good bending property of flexible display module, prolongs flexible display panel's life. The number of the opening structures 31 is selected according to the number of actual folding, and is not limited herein.
Optionally, the second protection layer comprises a viscous material, the viscosity μ of the second protection layer satisfies 1.0gf/25mm ≤ μ ≤ 2050gf/25mm, and the thickness h2 of the second protection layer satisfies 10um ≤ h2 ≤ 200 um.
The second protection layer 30 may be a material with adhesiveness, the first surface and the second surface of the second protection layer 30 are both adhesive, the second surface of the second protection layer 30 is adhered to the first protection layer 20, and the first surface of the second protection layer 30 is adhered to the display layer 10 to form the flexible display module, for example, a TPE material may be used as a suitable material for the second protection layer 30, and is a generic name of a thermoplastic elastomer material (including TPU, TPR, TPV, TPEE, etc.), and the TPE generally used for encapsulation belongs to a polystyrene TPE elastomer. The thickness of the second protection layer 30 is smaller, and the thickness h1 is within the range of not less than 10um and not more than h1 and not more than 200um, so that the thickness of the whole flexible display module is reduced.
Alternatively, the opening structure 31 is rectangular, square, triangular, and circular.
Optionally, the bending region B has a bending axis AC, and a dimension of the opening structure 31 in a direction of the bending axis AC is greater than or equal to a dimension of the opening structure 31 in a first direction, and the first direction intersects with the direction of the bending axis AC.
Wherein, open structure 31's shape can be rectangle, square, triangle-shaped and circular, can play further buffering and show layer 10 compressive stress when buckling, select the open structure 31 of different shapes according to the condition of actual folding, it explains to be explained that, when open structure 31's shape is rectangle, square, when circular, open structure 31 is greater than or equal to open structure 31 along the size of the first direction of the size of the direction of jackshaft AC, flexible display module is buckling to distinguish that the scattered stress effect is more obvious, flexible display module's bending performance is better, compare when open structure 31 is triangle-shaped, flexible display module's the relatively poor some of bending performance.
It should be explained that fig. 3 is another structure diagram of the flexible display module according to the second embodiment of the present invention, and fig. 4 is another structure diagram of the flexible display module according to the second embodiment of the present invention, as shown in fig. 3 and fig. 4, at least one of the first protective layer 20 and the second protective layer 30 is provided with the first groove 211 or the opening structure 31, which can achieve the effect of dispersing the compressive stress of the bending region when the flexible display module is bent, and this is not limited herein.
In this embodiment, the flexible display module includes a display layer 10, a first protective layer 20 and a second protective layer 30, the display layer 10 includes at least one bending region B, the display layer 10 further includes a first surface and a second surface, and the first surface of the display layer 10 is close to a light exit surface of the flexible display module; the first protective layer 20 is positioned on the second surface of the display layer 10. At least one first groove structure 21 is formed on a side surface of the first protection layer 20 facing the bending region B, and the first groove structure 21 includes a plurality of first grooves 211 arranged in an array. The second protection layer 30 is located between the first protection layer 20 and the display layer 10, the second protection layer 30 forms at least one opening structure 31 towards one side surface of the bending area B, it has been solved that there is stress concentration in the bending area in the flexible display module, can lead to the problem such as slippage or separation between each rete of bending area usually, this embodiment sets up first protection layer 20 on the second surface of display layer 10, be provided with a plurality of first recesses 21 on the basis of first protection layer 20, be provided with a plurality of opening structures 31 on the second protection layer 30, further disperse the tensile stress in bending area, avoid each rete to slide, the bending performance of flexible display module has further been improved, the reliability and the life-span of flexible display module have been improved, further the yield of flexible display panel has been improved.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a flexible display module assembly which characterized in that includes:
the display layer comprises at least one bending area, a first surface and a second surface, and the first surface of the display layer is close to the light emergent surface of the flexible display module;
a first protective layer on a second surface of the display layer.
2. The flexible display module of claim 1, wherein the first protective layer comprises at least one of a metal, an organic material, and an inorganic material, and the thickness h1 of the first protective layer satisfies 10um h1 m 200 um.
3. The flexible display module according to claim 1, wherein a side surface of the first protection layer facing the bending region forms at least one first groove structure, the at least one bending region and the at least one first groove structure are disposed in a one-to-one correspondence, and an orthographic projection of the first groove structure on the display layer is located in the corresponding bending region.
4. The flexible display module of claim 3, wherein the first groove structure comprises a plurality of first grooves arranged in an array.
5. The flexible display module according to claim 4, wherein the bending region has a bending axis, and a dimension of the first groove along a direction of the bending axis is greater than or equal to a dimension of the first groove along a first direction, and the first direction intersects with the direction of the bending axis.
6. The flexible display module of claim 4, wherein the first recess is rectangular, square, triangular, or circular.
7. The flexible display module according to claim 1, further comprising a second protection layer, wherein the second protection layer is located between the first protection layer and the display layer, a side surface of the second protection layer facing the bending region forms at least one opening structure, the at least one opening structure and the at least one bending region are arranged in a one-to-one correspondence, and an orthographic projection of the opening structure on the display layer is located in the corresponding bending region.
8. The flexible display module according to claim 7, wherein the bending region has a bending axis, and a dimension of the opening structure along a direction of the bending axis is greater than or equal to a dimension of the opening structure along a first direction, and the first direction intersects with the direction of the bending axis.
9. The flexible display module of claim 7, wherein the opening structure is rectangular, square, triangular, or circular.
10. The flexible display module of claim 7, wherein the second protective layer comprises a viscous material, the viscosity μ of the second protective layer is 1.0gf/25mm ≦ μ ≦ 2050gf/25mm, and the thickness h2 of the second protective layer is 10um ≦ h2 ≦ 200 um.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020065853.4U CN210836907U (en) | 2020-01-13 | 2020-01-13 | Flexible display module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020065853.4U CN210836907U (en) | 2020-01-13 | 2020-01-13 | Flexible display module |
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| CN210836907U true CN210836907U (en) | 2020-06-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112002230A (en) * | 2020-08-27 | 2020-11-27 | 武汉华星光电半导体显示技术有限公司 | Folding display device |
| CN113707032A (en) * | 2021-09-10 | 2021-11-26 | 武汉华星光电技术有限公司 | Flexible display module and mobile terminal |
| CN115447239A (en) * | 2022-09-26 | 2022-12-09 | 昆山国显光电有限公司 | Flexible multi-film-layer structure, preparation method thereof and display module |
-
2020
- 2020-01-13 CN CN202020065853.4U patent/CN210836907U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112002230A (en) * | 2020-08-27 | 2020-11-27 | 武汉华星光电半导体显示技术有限公司 | Folding display device |
| CN112002230B (en) * | 2020-08-27 | 2021-11-23 | 武汉华星光电半导体显示技术有限公司 | Folding display device |
| US11886248B2 (en) | 2020-08-27 | 2024-01-30 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Folding display device |
| CN113707032A (en) * | 2021-09-10 | 2021-11-26 | 武汉华星光电技术有限公司 | Flexible display module and mobile terminal |
| CN115447239A (en) * | 2022-09-26 | 2022-12-09 | 昆山国显光电有限公司 | Flexible multi-film-layer structure, preparation method thereof and display module |
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Address after: 201506 No. nine, No. 1568 engineering road, Shanghai, Jinshan District Patentee after: Shanghai Hehui optoelectronic Co., Ltd Address before: 201506 No. nine, No. 1568 engineering road, Shanghai, Jinshan District Patentee before: EverDisplay Optronics (Shanghai) Ltd. |
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| CP01 | Change in the name or title of a patent holder |