CN114464089A - Folding display panel and display device - Google Patents

Folding display panel and display device Download PDF

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Publication number
CN114464089A
CN114464089A CN202210033216.2A CN202210033216A CN114464089A CN 114464089 A CN114464089 A CN 114464089A CN 202210033216 A CN202210033216 A CN 202210033216A CN 114464089 A CN114464089 A CN 114464089A
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China
Prior art keywords
folding
magnetic attraction
display panel
back plate
display
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Granted
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CN202210033216.2A
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Chinese (zh)
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CN114464089B (en
Inventor
陈勇胜
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to CN202210033216.2A priority Critical patent/CN114464089B/en
Publication of CN114464089A publication Critical patent/CN114464089A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/301Indicating 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/549Organic PV cells

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The embodiment of the application discloses a folding display panel and a display device, wherein the folding display panel comprises a display layer, a folding area and plane areas, wherein the plane areas are positioned on two sides of the folding area; the back plate is arranged on one side surface of the display layer; the magnetic part is arranged on one side surface of the backboard far away from the display layer, the magnetic part comprises a first magnetic part and a second magnetic part which are respectively arranged in the plane areas on two sides of the folding area, and the homopolar of the first magnetic part is opposite to that of the second magnetic part. The beneficial effects of this application embodiment lie in that, folding display panel and display device in this application embodiment have set up homopolar relative magnetism respectively and have inhaled the piece in the plane district of folding district both sides, keep away from automatic tensile folding district when folding display panel is flat through homopolar repulsion to reduce the folding vestige in folding district. The magnetic attraction piece is provided with a sliding device in the repelling direction so as to limit the displacement of the plane area under the action of a stretching force and avoid the structural damage in the folding area caused by overlarge repelling force.

Description

Folding display panel and display device
Technical Field
The application relates to the field of display, in particular to a folding display panel and a display device.
Background
In the course of research and practice on the prior art, the inventors of the present application found that, as a new generation of flexible display technology, foldable screens are of great interest to various manufacturers. After being bent for many times, the foldable screen can generate creases in different degrees in the bending area. These creases are generated mainly because the molecular chains of the organic film are stretched during repeated bending to cause partial unrecoverable deformation, resulting in the formation of creases. In the screen-off state, the human eyes can easily observe the crease, which seriously affects the user experience. Therefore, there is a need to provide a foldable display device to improve the defect in the case of folding.
Disclosure of Invention
The embodiment of the application provides a folding display panel and a display device, and can solve the technical problem that a folding device in the prior art has creases in a folding area.
The embodiment of the application provides a folding display panel, includes: the display layer comprises a folding area and plane areas positioned on two sides of the folding area; the back plate is arranged on one side surface of the display layer; the magnetic attraction piece is arranged on the surface of one side, far away from the display layer, of the back plate and comprises a first magnetic attraction portion and a second magnetic attraction portion which are respectively located in plane areas on two sides of the folding area, and the first magnetic attraction portion and the second magnetic attraction portion are oppositely arranged in the same pole.
Optionally, in some embodiments of the present application, the foldable display panel further includes a sliding device disposed on a side surface of the back plate away from the display layer and located on a side of the second magnetic attraction portion away from the first magnetic attraction portion.
Optionally, in some embodiments of the present application, the foldable display panel further includes a housing, which is disposed on a side surface of the back plate away from the display layer, and is sleeved on the magnetic attraction member and the sliding device.
Optionally, in some embodiments of the present application, the sliding device includes a fixing plate fixed on the back plate and abutted to a side of the second magnetic attraction part away from the first magnetic attraction part; the limiting piece is fixed on one side surface of the shell, which is close to the back plate; the sliding groove is sleeved on the sliding rail and moves along the extending directions of the two ends of the sliding rail, and the sliding groove and the sliding rail are fixed to the fixed plate and the limiting part respectively.
Optionally, in some embodiments of the present application, the limiting members are disposed at two ends of the sliding groove or the sliding rail to limit the position of the sliding rail or the sliding groove.
Optionally, in some embodiments of the present application, a barrier layer is further disposed between the magnetically attractive element and the back plate, and the barrier layer is made of a non-magnetic material.
Optionally, in some embodiments of the present application, the barrier layer is an austenitic stainless steel material.
Optionally, in some embodiments of the present application, the magnetically attracting element is fixed to a side surface of the barrier layer away from the back plate by a pressure sensitive adhesive.
Optionally, in some embodiments of the present application, the barrier layer is fixed to a side surface of the back sheet away from the display layer by a pressure sensitive adhesive, and the barrier layer is located in the planar area.
Correspondingly, the embodiment of the application also provides a display device which comprises the folding display panel.
The beneficial effects of this application embodiment lie in that, folding display panel and display device in this application embodiment have set up homopolar relative magnetism respectively and have inhaled the piece in the plane district of folding district both sides, keep away from automatic tensile folding district when folding display panel is flat through homopolar repulsion to reduce the folding vestige in folding district. The magnetic attraction piece is provided with a sliding device in the repelling direction for limiting the displacement of the plane area under the action of the stretching force and avoiding the structural damage in the folding area caused by overlarge repelling force.
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, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a foldable display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a sliding device according to an embodiment of the present application.
Description of reference numerals:
folding the display panel 1; a folding zone 101;
a planar region 102; a display layer 100;
a back plate 200; a glue layer 300;
a barrier layer 400; a magnetic element 500;
a slide device 600; a housing 700;
a first magnetic attraction portion 510; a second magnetic attraction part 520;
a fixing plate 610; a chute 620;
a slide rail 630; a stopper 640.
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. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides a folding display panel and a display device. The details will be described below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
Examples
In this embodiment, as shown in fig. 1, the display device of the present invention includes a foldable display panel 1, all technical features and main technical effects of the display device are concentrated on the foldable display panel 1, and for other components of the display device, this embodiment is not repeated, and as shown in fig. 2, the foldable display panel 1 in this embodiment includes a display layer 100, a backplane 200, an adhesive layer 300, a barrier layer 400, a magnetic attraction member 500, a sliding device 600, and a housing 700.
In this embodiment, the foldable display panel 1 further includes a folding area 101 and a planar area 102 located at two sides of the folding area 101, and the planar area 102 can be folded or unfolded around the folding area 101, so that the foldable display panel 1 is unfolded to increase the display area when displaying, and is folded to reduce the storage space when not displaying.
The back plate 200 is disposed on a side of the display layer 100 away from the light emitting surface, and the back plate 200 is provided with a driving circuit and a light emitting unit of the display layer 100, so as to drive the display layer 100 to emit light, thereby controlling the display layer 100 to be turned on and display a pattern or turned off.
The attached one side surface of keeping away from display layer 100 of barrier layer 400 at backplate 200, barrier layer 400 adopts the non-magnetic to inhale the material, inhales the distance of piece 500 and backplate 200 through the increase, reduces the magnetic attraction of piece 500 to metal material in backplate 200, avoids the magnetic field of the piece 500 of inhaling to disturb the metal layer in backplate 200. In this embodiment, the barrier layer 400 is made of austenitic stainless steel, and has very low magnetic permeability and is hardly influenced by the magnetic attraction of the magnetic attraction member 500.
Barrier layer 400 passes through colloid 300 and attaches on backplate 200, colloid 300 is pressure sensitive adhesive material, pressure sensitive adhesive material is the viscoelastic body that has the viscous property of liquid and the elastic property of solid simultaneously, can be fine with barrier layer 400 and backplate 200 adhesion together, simultaneously, colloid 300 in this embodiment possesses certain thickness, further inhale the distance of piece 500 and backplate 200 through the increase magnetism, further reduce magnetism and inhale the magnetic attraction of piece 500 to metal material in backplate 200, avoid magnetism to inhale the magnetic field of piece 500 and disturb the metal layer in backplate 200.
The magnetic attraction piece 500 is attached to a side surface of the barrier layer 400 far from the backplane 200, specifically, the magnetic attraction piece 500 includes a first magnetic attraction portion 510 and a second magnetic attraction portion 520, the first magnetic attraction portion 510 and the second magnetic attraction portion 520 are relatively disposed at two ends of the folding area 101, that is, the first magnetic attraction portion 510 and the second magnetic attraction portion 520 are respectively disposed in the plane area 102 on two sides of the folding area 101, and an N pole of the first magnetic attraction portion 510 and an N pole of the second magnetic attraction portion 520 are disposed opposite to each other.
Specifically, in this embodiment, the first magnetic attraction part 510 is a permanent magnet, one end of an N pole of the first magnetic attraction part 510 faces the folding area 101 and is located at the boundary of the folding area 101 and the planar area 102, the second magnetic attraction part 520 is made of the same material as the first magnetic attraction part 510, one end of an N pole of the first magnetic attraction part 520 faces the folding area 101 and is located at the boundary of the folding area 101 and the planar area 102, when the folding area 101 of the folding display panel 1 is folded, the first magnetic attraction part 510 and the second magnetic attraction part 520 are located at the "top-bottom overlapped" position of the planar area 102, the first magnetic attraction part 510 and the second magnetic attraction part 520 do not attract or repel each other, when the folding display panel 1 is unfolded, the N poles of the first magnetic attraction part 510 and the second magnetic attraction part 520 are arranged opposite to each other, and the planar areas 102 on both sides of the folding area 101 move away from the folding area 101 under the guidance of the first magnetic attraction part 510 and the second magnetic attraction part 520, thereby play a tensile effect to folding district 101 for because "crease" that folding caused is stretched out the exhibition flat in folding district 101, can't observe the crease of folding district 101 with the naked eye when folding display panel 1 is put out the screen, thereby promote user experience.
In this embodiment, in order to further improve the stretching effect on the folding area 101, and avoid the problem that the planar area 102 is too large to move and causes the mechanism in the folding area 101 to be damaged, the sliding device 600 is disposed on the side of the second magnetic attraction part 520 far away from the first magnetic attraction part 510, one end of the sliding device 600 is fixed on the side surface of the barrier layer 400 far away from the backboard 200, and one end of the sliding device abuts against the end surface of the second magnetic attraction part 520 far away from the first magnetic attraction part 510, when the second magnetic attraction part 520 and the first magnetic attraction part 510 repel each other like one another, the second magnetic attraction part 520 can push the sliding device 600 to slide towards the direction far away from the first magnetic attraction part 510.
As shown in fig. 3, the sliding device 600 includes a fixing plate 610, a sliding groove 620, a sliding rail 630 and a limiting member 640, the fixing plate 610 is fixed on a side surface of the blocking layer 400 far from the backplate 200, and one end of the fixing plate abuts against an end surface of the second magnetic attraction portion 520 far from the first magnetic attraction portion 510, the sliding groove 620 is fixed to a side of the fixing plate 610 far from the blocking layer 400 through a rod, two ends of the sliding rail 630 are fixed to the limiting member 640, that is, the sliding rail 630 is disposed between the two limiting members 640, the sliding groove 620 is sleeved on the sliding rail 630 and slides along an extending direction of the two ends of the sliding rail 630, the limiting member 640 is used for limiting the displacement of the sliding groove 620 on the sliding rail 630, and the mechanism damage in the folding area 101 caused by the excessive displacement of the sliding groove 620 is avoided.
The sliding rail 630 and the limiting member 640 are fixed to the housing 700, the housing 700 is disposed on one side of the magnetic attraction member 500 away from the backplate 200 and sleeved outside the magnetic attraction member 500 and the sliding device 600, the housing 700 is not directly contacted with the magnetic attraction member 500, and the housing 700 is made of a non-magnetic attraction material, when the second magnetic attraction portion 520 and the first magnetic attraction portion 510 repel each other in the same polarity, the housing 700 is not affected by the magnetic field, so that the positions of the sliding rail 630 and the limiting member 640 are fixed with respect to the magnetic attraction member 500, and the purpose of limiting the moving distance of the planar area 102 is achieved.
The beneficial effects of this embodiment lie in that folding display panel and display device in this embodiment have set up homopolar relative magnetism respectively and have inhaled the piece, keep away from automatic stretching folding district when folding display panel is flat through homopolar repulsion to reduce folding trace in folding district. The magnetic attraction piece is provided with a sliding device in the repelling direction for limiting the displacement of the plane area under the action of the stretching force and avoiding the structural damage in the folding area caused by overlarge repelling force.
The foregoing detailed description is directed to a foldable display panel and a display device provided in the embodiments of the present application, and specific examples are applied herein to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A foldable display panel, comprising
The display layer comprises a folding area and plane areas positioned on two sides of the folding area;
the back plate is arranged on one side surface of the display layer;
the magnetic attraction piece is arranged on the surface of one side, far away from the display layer, of the back plate and comprises a first magnetic attraction portion and a second magnetic attraction portion which are respectively located in plane areas on two sides of the folding area, and the first magnetic attraction portion and the second magnetic attraction portion are oppositely arranged in the same pole.
2. The foldable display panel of claim 1, further comprising
The sliding device is arranged on the surface of one side of the back plate, which is far away from the display layer, and is positioned on one side of the second magnetic attraction part, which is far away from the first magnetic attraction part.
3. The foldable display panel of claim 2, further comprising
The shell is arranged on one side surface of the back plate, which is far away from the display layer, and is sleeved outside the magnetic attraction piece and the sliding device.
4. The folding display panel of claim 3,
the sliding device comprises
The fixing plate is fixed on the back plate and is abutted to one side, far away from the first magnetic part, of the second magnetic part;
the limiting piece is fixed on one side surface of the shell, which is close to the back plate;
the sliding groove is sleeved on the sliding rail and moves along the extending directions of the two ends of the sliding rail, and the sliding groove and the sliding rail are fixed to the fixed plate and the limiting part respectively.
5. The folding display panel of claim 4,
the limiting parts are arranged at the two ends of the sliding chute or the sliding rail to limit the position of the sliding rail or the sliding chute.
6. The folding display panel of claim 1,
the magnetic attraction piece and the back plate are further provided with a barrier layer, and the barrier layer is made of nonmagnetic materials.
7. The folding display panel of claim 6,
the barrier layer is made of austenitic stainless steel materials.
8. The folding display panel of claim 6,
the magnetic attraction piece is fixed on the surface of one side, far away from the back plate, of the barrier layer through pressure-sensitive adhesive.
9. The folding display panel of claim 6,
the barrier layer is fixed on one side surface of the back plate far away from the display layer through pressure-sensitive adhesive, and the barrier layer is located in the plane area.
10. A display device comprising the foldable display panel according to any one of claims 1 to 9.
CN202210033216.2A 2022-01-12 2022-01-12 Folding display panel and display device Active CN114464089B (en)

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Application Number Priority Date Filing Date Title
CN202210033216.2A CN114464089B (en) 2022-01-12 2022-01-12 Folding display panel and display device

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Application Number Priority Date Filing Date Title
CN202210033216.2A CN114464089B (en) 2022-01-12 2022-01-12 Folding display panel and display device

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CN114464089B CN114464089B (en) 2023-07-25

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190139941A1 (en) * 2017-11-03 2019-05-09 Shih-Hsien Tseng Pixel unit, pixel array, multimedia device and manufacturing method thereof
CN110459135A (en) * 2019-08-28 2019-11-15 Oppo广东移动通信有限公司 Flexible display screen, flexible display apparatus
CN111343310A (en) * 2020-03-06 2020-06-26 昆山工研院新型平板显示技术中心有限公司 Display device and mobile terminal
CN111835899A (en) * 2020-08-21 2020-10-27 Oppo广东移动通信有限公司 Housing assembly and foldable electronic device
US10831234B1 (en) * 2019-08-27 2020-11-10 Lenovo (Singapore) Pte. Ltd. Portable information device
CN112201156A (en) * 2020-08-31 2021-01-08 上海天马微电子有限公司 Display module and display device
CN112365800A (en) * 2020-10-30 2021-02-12 合肥维信诺科技有限公司 Flexible display panel
CN112365804A (en) * 2020-11-26 2021-02-12 武汉天马微电子有限公司 Display module and display device
US20210068271A1 (en) * 2019-08-30 2021-03-04 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Foldable display device
CN112509465A (en) * 2020-11-23 2021-03-16 京东方科技集团股份有限公司 Folding display device and electronic equipment
WO2021115161A1 (en) * 2019-12-13 2021-06-17 Oppo广东移动通信有限公司 Folding apparatus and electronic device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190139941A1 (en) * 2017-11-03 2019-05-09 Shih-Hsien Tseng Pixel unit, pixel array, multimedia device and manufacturing method thereof
US10831234B1 (en) * 2019-08-27 2020-11-10 Lenovo (Singapore) Pte. Ltd. Portable information device
CN110459135A (en) * 2019-08-28 2019-11-15 Oppo广东移动通信有限公司 Flexible display screen, flexible display apparatus
US20210068271A1 (en) * 2019-08-30 2021-03-04 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Foldable display device
WO2021115161A1 (en) * 2019-12-13 2021-06-17 Oppo广东移动通信有限公司 Folding apparatus and electronic device
CN111343310A (en) * 2020-03-06 2020-06-26 昆山工研院新型平板显示技术中心有限公司 Display device and mobile terminal
CN111835899A (en) * 2020-08-21 2020-10-27 Oppo广东移动通信有限公司 Housing assembly and foldable electronic device
CN112201156A (en) * 2020-08-31 2021-01-08 上海天马微电子有限公司 Display module and display device
CN112365800A (en) * 2020-10-30 2021-02-12 合肥维信诺科技有限公司 Flexible display panel
CN112509465A (en) * 2020-11-23 2021-03-16 京东方科技集团股份有限公司 Folding display device and electronic equipment
CN112365804A (en) * 2020-11-26 2021-02-12 武汉天马微电子有限公司 Display module and display device

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