CN112908170B - Display panel assembly and display device - Google Patents
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- CN112908170B CN112908170B CN202110120556.4A CN202110120556A CN112908170B CN 112908170 B CN112908170 B CN 112908170B CN 202110120556 A CN202110120556 A CN 202110120556A CN 112908170 B CN112908170 B CN 112908170B
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- 238000000034 method Methods 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 12
- 238000005538 encapsulation Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000758 substrate Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 230000007423 decrease Effects 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- -1 polydimethylsiloxane Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 239000012780 transparent material Substances 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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- 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
- G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
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Abstract
The application provides a display panel subassembly and display device, the display panel subassembly includes: at least one first display panel and at least one second display panel which are arranged in a stacked manner; the first display panel comprises at least one display panel body and at least one stretchable body which are connected with each other; the display panel body and the second display panel can move relatively, and the stretchable body stretches and retracts along with the movement of the display panel body and the second display panel in the relative movement process, so that the total display area formed by the first display panel and the second display panel changes along with the movement of the stretchable body. Through the mode, the display effect of the display device before and after stretching is basically unchanged.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a display panel assembly and a display device.
Background
In order to increase the display area of the display device, a stretchable display device has been developed. However, after the existing display device is stretched, the pixel density is reduced, the pixel arrangement becomes sparse, and the display resolution and brightness are reduced; i.e. the display effect decreases after stretching.
Disclosure of Invention
The application provides a display panel assembly and a display device, which are used for solving the technical problem that the pixel density of the display device is reduced after the display device is stretched.
In order to solve the technical problem, the application adopts a technical scheme that: provided is a display panel assembly including: at least one first display panel and at least one second display panel which are arranged in a stacked manner; the first display panel comprises at least one display panel body and at least one stretchable body which are connected with each other; the display panel body and the second display panel can move relatively, and the stretchable body stretches and retracts along with the movement of the display panel body and the second display panel in the relative movement process, so that the total display area formed by the first display panel and the second display panel changes along with the movement of the stretchable body.
The first display panel comprises two display panel bodies, and the stretchable body is connected between the two display panel bodies; preferably, before the stretchable body is stretched, an outer edge of the first display panel coincides with an outer edge of the second display panel; the stretchable body is stretchable to an outer edge of the stretchable body coinciding with an outer edge of the second display panel.
The stretchable body comprises a plurality of base materials arranged at intervals, the base materials are connected through a plurality of first connecting pieces to form a folded structure, and the base material on the outermost side is connected with the display plate body through a second connecting piece.
The first display panel is close to one side of the display surface of the display panel assembly relative to the second display panel, the stretchable body is a stretchable transparent body, and the exposed area of the second display panel, which displays pictures through the stretchable transparent body, changes along with the stretching process of the stretchable body.
Wherein an inorganic encapsulation layer is disposed on a side of the second display panel facing the stretchable body, and an absolute value of a difference between a refractive index of the inorganic encapsulation layer and a refractive index of the stretchable body is greater than 0 and less than or equal to 0.2.
The second display panel is close to one side of the display surface of the display panel assembly relative to the first display panel, and in the stretching body stretching process, the display area of the display panel body exposed from the second display panel changes along with the stretching body.
The thickness of the display panel body is greater than that of the stretchable body after stretching, so that a groove is formed on one side, facing the second display panel, of the stretched first display panel, and the second display panel can enter the groove.
Wherein a sum of thicknesses of the second display panel and the stretched stretchable body is equal to a thickness of the display panel body.
In order to solve the technical problem, the other technical scheme adopted by the application is as follows: provided is a display device including: a stretchable frame; the display panel assembly of any of the above embodiments, located on the frame; a connecting mechanism connecting the display panel assembly and the frame, the stretchable body being stretched following the stretching movement of the frame when the frame is stretched.
Wherein the thickness of the display panel body is greater than the thickness of the stretchable body after stretching, so that the first display panel after stretching forms a groove on a side facing the second display panel, the display device further comprising: the supporting mechanism is used for driving the display panel body to move towards the direction close to the second display panel after the stretchable body is stretched; alternatively, the second display panel is driven to move in a direction approaching the stretchable body so that the second display panel enters the groove.
Being different from the prior art situation, the beneficial effect of this application is: the display panel assembly comprises at least one first display panel and at least one second display panel which are arranged in a stacked mode, wherein the first display panel comprises at least one display panel body and at least one stretchable body which are connected with each other; the stretchable body stretches and retracts in the relative movement process of the display panel body and the second display panel, so that the total display area formed by the first display panel and the second display panel changes along with the stretching, the total display area can be provided by the display panel body and the second display panel, the first display panel and the second display panel can compensate each other in stretching, the descending amplitude of pixel density after stretching is smaller, and even can be kept unchanged, the situations of display resolution reduction and brightness reduction after stretching can be effectively improved, and the display effect of the display device before and after stretching is basically unchanged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic view of a display panel assembly according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating a stretched display panel assembly of FIG. 1 according to an embodiment;
FIG. 3 is a schematic structural diagram of another embodiment of a display panel assembly according to the present application;
FIG. 4 is a schematic diagram illustrating the structure of the display panel assembly of FIG. 3 after stretching;
FIG. 5 is a schematic structural view of the fully stretched embodiment of the stretchable body of FIG. 1;
FIG. 6 is a schematic structural view of the second embodiment of the stretchable body portion shown in FIG. 5 after stretching;
FIG. 7 is a schematic structural diagram of an embodiment of the first display panel of FIG. 1;
fig. 8 is a schematic structural diagram of an embodiment of a display device according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a display panel assembly according to the present application. The display panel assembly 10 includes at least one first display panel 100 and at least one second display panel 102 that are stacked.
Each of the first display panels 100 specifically includes at least one display panel body 1000 and at least one stretchable body 1002 connected to each other, the display panel body 1000 may include an array layer, a light emitting layer, an encapsulation layer, and the like, which are stacked, and the second display panel 102 includes an array layer, a light emitting layer, an encapsulation layer, and the like, which are stacked, that is, the display panel body 1000 and the second display panel 102 have a display function. Alternatively, the display panel body 1000 and the second display panel 102 may not have stretchability themselves, and the pixel arrangement modes on the display panel body 1000 and the second display panel 102 may be the same or different, and may be specifically designed according to actual requirements. Of course, in some cases, the display panel body 1000 and the second display panel 102 may also have a certain stretchability. For the stretchable body 1002, no light emitting layer may be provided thereon, that is, the stretchable body 1002 may not have a display function.
Further, the display panel assembly 10 may have a structure as shown in fig. 2, in which the stretchable body 1002 stretches and contracts during the relative movement, and the total display area formed by the first display panel 100 and the second display panel 102 changes along with the relative movement of the display panel body 1000 and the second display panel 102 under the action of an external force. The display panel body 1000 may have a portion exceeding the second display panel 102 after the stretchable body 1002 is stretched, the total display area may be provided by the display panel body 1000 exceeding the second display panel 102 and the second display panel 102 together, the first display panel 100 and the second display panel 102 may perform mutual compensation of the display areas during stretching, and the size change of the display panel body 1000 and the second display panel 102 in the first display panel 100 after stretching is smaller, the decrease of the pixel density is smaller, and may even remain unchanged, so that the situations of the decrease of the display resolution and the decrease of the brightness after stretching may be effectively improved, and the display effect of the display device before and after stretching is substantially unchanged.
In addition, only one first display panel 100 and one second display panel 102 are schematically illustrated in fig. 1. In other embodiments, the display panel assembly 10 may also include a plurality of first display panels 100 and/or a plurality of second display panels 102, the plurality of first display panels 100 may be disposed adjacent to or spaced apart from each other, and the plurality of second display panels 102 may also be disposed adjacent to or spaced apart from each other. For example, when the display panel assembly 10 includes two first display panels 100, the relative movement directions of the two first display panels 100 may be opposite, so that the total display area of the display panel assembly 10 varies.
In one embodiment, as shown in fig. 1, the first display panel 100 includes two display panel bodies 1000 and one stretchable body 1002, and the stretchable body 1002 is connected between the two display panel bodies 1000; at this time, during the stretching process, the position of the second display panel 102 may be maintained, and the first display panel 100 is stretched in the direction indicated by the arrow in fig. 1, and thus, relative movement occurs between the first display panel and the second display panel 102. This design can make the width that display panel assembly 10 took up before tensile less, and when display panel assembly 10 was applied to display device inside, the user can all realize tensile process to first display panel 100 from both sides edge to improve user experience.
Of course, in other embodiments, the first display panel 100 may also include only one display panel body 1000 and one stretchable body 1002 connected to each other; at this time, during the stretching process, the position of the display panel body 1000 may remain unchanged, and the second display panel 102 may stretch along with the stretchable body 1002, and thus may move relative to the display panel body 1000. Alternatively, the first display panel 100 may also include a plurality of display panel bodies 1000 and a plurality of stretchable bodies 1002 connected to each other, and one stretchable body 1002 is connected between two adjacent display panel bodies 1000; at this time, the position of only one of the display panel bodies 1000 may be maintained during the stretching process.
Alternatively, referring to fig. 1 again, before the stretchable body 1002 stretches, the outer edge of the first display panel 100 coincides with the outer edge of the second display panel 102; this design may enable the display panel body 1000 and the second display panel 102 to be produced using the same evaporation stage equipment when the display panel body 1000 and the second display panel 102 are formed using an evaporation process. Referring again to fig. 2, the stretchable body 1002 can stretch (e.g., fully stretch) until an outer edge of the stretchable body 1002 coincides with an outer edge of the second display panel 102. The design method can double the display area of the display panel assembly 10 after stretching, so as to improve the user experience.
Further, as shown in fig. 2, the thickness d1 of the display panel body 1000 is greater than the thickness d2 of the stretched stretchable body 1002, so that the stretched first display panel 100 forms a groove (not labeled) on a side facing the second display panel 102, and the second display panel 102 can enter the groove. This design can make the display surface 104 of the display panel assembly 10 as flat as possible to improve the display effect. Preferably, the sum D of the thicknesses of the second display panel 102 and the stretched stretchable body 1002 is equal to the thickness D1 of the display panel body 1000. This design may enable the display surface 104 of the display panel assembly 10 to remain flat before and after stretching to improve the display effect.
In addition, referring to fig. 1 and fig. 2 again, the first display panel 100 is close to the display surface 104 side of the display panel assembly 10 relative to the second display panel 102, the stretchable body 1002 is a stretchable transparent body, i.e. the stretchable body 1002 is only made of a transparent material, and the display area exposed by the second display panel 102 for displaying a picture through the stretchable transparent body changes along with the stretching process of the stretchable body 1002. That is, in the above embodiment, the first display panel 100 corresponds to a main display screen, the second display panel 102 corresponds to a supplementary display screen, and the total display area of the display panel assembly 10 before and after the display panel assembly 10 is stretched is formed by the display panel body 1000 and the second display panel 102 at the position of the stretchable transparent body. The structure of the display panel assembly 10 in this design is relatively simple and easy to implement.
Further, generally, the side of the second display panel 102 facing the stretchable body 1002 is an encapsulation layer, which can effectively prevent moisture from invading the light emitting layer in the second display panel 102. Preferably, the encapsulation layer disposed on the side of the second display panel 102 facing the stretchable body 1002 is an inorganic encapsulation layer, and the absolute value of the difference between the refractive index of the inorganic encapsulation layer and the refractive index of the stretchable body 1002 is greater than 0 and less than or equal to 0.2. For example, the absolute value of the difference between the refractive indexes of the inorganic encapsulating insulating layer and the stretchable body 1002 is 0.05, 0.08, 0.1, etc., and the difference between the refractive indexes of the inorganic encapsulating insulating layer and the stretchable body 1002 is small in the design manner, so that the probability of light reflection at the interface between the inorganic encapsulating insulating layer and the stretchable body 1002 is reduced, and the optical efficiency is improved. Alternatively, the material of the stretchable body 1002 may be polydimethylsiloxane with a refractive index of about 1.40, and the material of the inorganic encapsulation layer may be silicon dioxide with a refractive index of about 1.45.
In yet another embodiment, as shown in fig. 3 and 4, fig. 3 is a schematic structural diagram of another embodiment of the display panel assembly of the present application, and fig. 4 is a schematic structural diagram of the latter embodiment of fig. 3 after the display panel assembly is stretched. In this embodiment, the second display panel 102a corresponds to a main display screen, the first display panel 100a corresponds to a supplemental display screen, and in this case, the second display panel 102a is close to the display surface 104a side of the display panel assembly 10a relative to the first display panel 100a, the stretchable body 1002a is a stretchable transparent body or a stretchable opaque body, and the display area of the display panel 1000a exposed from the second display panel 102a changes along with the stretching process of the stretchable body 1002 a. Before and after the stretching of the display panel assembly 10a, the total display area of the display panel assembly 10a is constituted by the second display panel 102a and the display panel body 1000a exposed from the second display panel 102 a. The structure of the display panel assembly 10a in this design is relatively simple and easy to implement.
For the stretchable body 1002, it may itself be formed of a stretchable (i.e., deformable) material. Alternatively, referring to fig. 5 and 6, fig. 5 is a schematic structural view of the embodiment after the stretchable body of fig. 1 is fully stretched, and fig. 6 is a schematic structural view of the embodiment when the stretchable body of fig. 5 is not fully stretched. The stretchable body 1002 includes a plurality of substrates 10020 spaced apart from each other, where the substrates 10020 may be formed of polydimethylsiloxane, and the thickness of the substrates 10020 may be much smaller than that of the display panel body 1000. Adjacent substrates 10020 are joined in a pleated configuration by a plurality of first connectors 10022, which first connectors 10022 may be a film bonding material having adhesive properties. In this embodiment, in order to reduce the resistance of the stretchable body 1002 to refold after stretching, as shown in fig. 5, one first connector 10022 is disposed between two adjacent substrates 10020, and the adjacent first connectors 10022 are arranged in a staggered manner; for example, for the substrate 10020 in a non-edge position, the first connectors 10022 are respectively disposed at the end edges of the two sides, and one of the first connectors 10022 is located at the upper end edge, and the other first connector 10022 is located at the lower end edge.
In addition, in order to connect and fix the stretchable body 1002 with the peripheral display panel body 1000, as shown in fig. 5, the outermost substrate 10020 is connected with the display panel body 1000 through a second connector 10024, and the second connector 10024 may be a film connecting material having an adhesive property. Further, in order to increase the holding force between the stretchable body 1002 and the display panel body 1000, the surface of the outermost substrate 10020 may be coated with a whole surface of an adhesive material, through which the outermost substrate 10020 and the side surface of the display panel body 1000 are fixed, the specific structure is as shown in fig. 7, and fig. 7 is a schematic structural view of an embodiment of the first display panel in fig. 1. Optionally, the width d3 of the outermost substrate 10020 is less than or equal to the thickness d1 of the side surface of the display panel body 1000, so that the outermost substrate 10020 does not protrude from the display panel body 1000 when attached to the display panel body 1000. In order to make the display surface 104 of the display panel assembly 10 flat, a side surface of the stretchable body 1002 is flush with a side surface of the display panel body 1000 after being fully stretched as shown in fig. 2.
Referring to fig. 8, fig. 8 is a schematic structural diagram of an embodiment of a display device according to the present application, where the display device 20 may be a mobile phone, a tablet, or the like, and specifically includes: the stretchable frame 200, the display panel assembly 10 of any of the above embodiments, and the connection mechanism (not shown). The display panel assembly 10 is disposed on the frame 200, and the connection mechanism connects the display panel assembly 10 and the frame 200. For example, the connection mechanism may include a first connection assembly for fixedly connecting the first display panel 100 with the stretchable frame 200 and a second connection assembly for fixedly connecting the second display panel 102 with a non-moving member in the frame 200. When the frame 200 is stretched, the stretchable body 1002 is stretched following the stretching movement of the frame 200, and the position of the second display panel 102 may remain fixed.
In addition, as shown in fig. 2, the thickness of the display panel body 1000 is greater than that of the stretchable body 1002 after stretching, so that the stretched first display panel 100 forms a groove on a side facing the second display panel 102, and the display device 20 provided by the present application further includes a supporting mechanism (not shown) for driving the display panel body 1000 to move closer to the second display panel 102 after the stretchable body 1002 is stretched; alternatively, the second display panel 102 is driven to move toward the stretchable body 1002, i.e., the display panel body 1000 or the second display panel 102 is driven to move in the vertical direction, so that the second display panel 102 enters the groove and the display surface 104 of the display panel assembly 10 is flat.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.
Claims (10)
1. A display panel assembly, comprising:
at least one first display panel and at least one second display panel which are arranged in a stacked manner; the first display panel comprises at least one display panel body and at least one stretchable body which are connected with each other;
the display panel body and the second display panel can move relatively, and the stretchable body stretches and contracts along with the display panel body in the relative movement process, so that the total display area formed by the first display panel and the second display panel changes along with the display panel body;
the stretchable body comprises a plurality of base materials arranged at intervals, the base materials are adjacent to each other and connected through a plurality of first connecting pieces to form a folded structure, and the base material on the outermost side is connected with the display board body through a second connecting piece.
2. The display panel assembly of claim 1,
the first display panel comprises two display panel bodies, and the stretchable body is connected between the two display panel bodies.
3. The display panel assembly of claim 1,
before the stretchable body stretches, the outer edge of the first display panel is coincided with the outer edge of the second display panel; the stretchable body is stretchable to such an extent that an outer edge of the stretchable body coincides with an outer edge of the second display panel.
4. The display panel assembly of claim 1,
the first display panel is close to one side of the display surface of the display panel assembly relative to the second display panel, the stretchable body is a stretchable transparent body, and in the stretching process, the exposed area of the second display panel displaying pictures through the stretchable transparent body changes along with the stretching process.
5. The display panel assembly according to claim 4,
an inorganic encapsulation layer is arranged on one side, facing the stretchable body, of the second display panel, and the absolute value of the difference between the refractive index of the inorganic encapsulation layer and the refractive index of the stretchable body is greater than 0 and less than or equal to 0.2.
6. The display panel assembly of claim 1,
the second display panel is close to one side of the display surface of the display panel assembly relative to the first display panel, and in the process that the stretchable body stretches and retracts, the display area of the display panel exposed from the second display panel changes along with the change.
7. The display panel assembly of claim 2,
the thickness of the display panel body is greater than that of the stretchable body after stretching, so that a groove is formed on one side, facing the second display panel, of the first display panel after stretching, and the second display panel can enter the groove.
8. The display panel assembly according to claim 7,
the sum of the thicknesses of the second display panel and the stretched stretchable body is equal to the thickness of the display panel body.
9. A display device, comprising:
a stretchable frame;
the display panel assembly of any of claims 1-8, located on the frame;
a connecting mechanism connecting the display panel assembly and the frame, the stretchable body being stretched following the stretching movement of the frame when the frame is stretched.
10. The display device according to claim 9, wherein the thickness of the display panel body is greater than the thickness of the stretchable body after stretching so that the first display panel after stretching forms a groove on a side facing the second display panel, the display device further comprising:
the supporting mechanism is used for driving the display panel body to move towards the direction close to the second display panel after the stretchable body is stretched; alternatively, the second display panel is driven to move in a direction approaching the stretchable body so that the second display panel enters the groove.
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| CN112908170B true CN112908170B (en) | 2022-08-26 |
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| CN110189640A (en) * | 2019-07-02 | 2019-08-30 | 京东方科技集团股份有限公司 | Stretchable display base plate and preparation method thereof, display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101969485B (en) * | 2010-09-30 | 2013-09-04 | 友达光电股份有限公司 | Sliding cover mechanism and handheld device with same |
| CN103716428B (en) * | 2013-12-30 | 2016-03-02 | 京东方科技集团股份有限公司 | Portable display apparatus |
| KR102356697B1 (en) * | 2015-01-15 | 2022-01-27 | 삼성디스플레이 주식회사 | Stretchable display device and manufacturing method of the same |
| US10424750B2 (en) * | 2017-12-31 | 2019-09-24 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Stretchable display panel, manufacturing method thereof, and stretchable display apparatus |
| CN109712533B (en) * | 2019-01-09 | 2021-03-23 | 广州国显科技有限公司 | Display device |
| CN209591358U (en) * | 2019-02-26 | 2019-11-05 | 昆山工研院新型平板显示技术中心有限公司 | Stretchable display screen and display device |
| CN111883008A (en) * | 2020-08-12 | 2020-11-03 | 上海天马微电子有限公司 | Stretchable display panel and stretchable display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104200A (en) * | 2017-04-27 | 2017-08-29 | 上海天马微电子有限公司 | Flexible display panel and flexible display device |
| CN110189640A (en) * | 2019-07-02 | 2019-08-30 | 京东方科技集团股份有限公司 | Stretchable display base plate and preparation method thereof, display device |
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