CN114550587A - Display device - Google Patents
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- CN114550587A CN114550587A CN202210149787.2A CN202210149787A CN114550587A CN 114550587 A CN114550587 A CN 114550587A CN 202210149787 A CN202210149787 A CN 202210149787A CN 114550587 A CN114550587 A CN 114550587A
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- 230000005389 magnetism Effects 0.000 claims abstract description 7
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- 238000010586 diagram Methods 0.000 description 14
- 238000003491 array Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
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- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 239000004814 polyurethane 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
Abstract
The invention discloses a display device, which comprises a second shell, a first shell and a flexible display panel, wherein the first shell moves along a first direction relative to the second shell; an accommodating cavity is formed in the second shell, a winding shaft is arranged in the accommodating cavity, one end of the flexible display panel is fixed on the winding shaft, and the other end of the flexible display panel is fixed on the first shell; the flexible display panel comprises a light emitting surface and a backlight surface which are opposite, the backlight surface comprises two edge zones which are opposite along a second direction, at least one edge zone is provided with a plurality of first magnets along a first direction, the magnetism of the end parts of two adjacent first magnets is the same along the first direction, two adjacent first magnets are provided with a first interval, and the second direction is intersected with the first direction. The invention utilizes the repulsion force generated by the homopolar magnetic poles to offset the curling stress of the flexible display panel, so that the flexible display panel is in a flattening state to prevent curling, and the display performance is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
Smart terminal devices (such as smart phones and tablet computers) are developing towards a direction of having a larger display area, being lighter, thinner and more portable. At present, with the wide application of the full screen technology, the screen occupation ratio of the intelligent terminal device, especially the mobile phone, is close to the limit, so that a larger screen is needed, and a larger carrying volume is needed. Therefore, the advent and application of the stretchable display device, the rollable display device, and the like, as a solution that can provide a larger display panel screen and a smaller carrying volume, are inevitable results from the demand.
In the prior art, when the stretching screen or the curling screen is used, after the stretching screen or the curling screen is rolled, the stretching screen or the curling screen cannot quickly disappear due to the curling stress so as to recover to a flat state, and the stretching screen or the curling screen is bent or partially folded to influence the display appearance.
Therefore, it is desirable to provide a display device capable of preventing a display panel from being bent or partially wrinkled due to a curling stress.
Disclosure of Invention
In view of the above, the present invention provides a display device for preventing a display panel from being bent or partially wrinkled due to a curling stress.
The display device provided by the invention comprises a second shell, a first shell and a flexible display panel, wherein,
the first housing moves relative to the second housing in a first direction; an accommodating cavity is formed in the second shell, a winding shaft is arranged in the accommodating cavity, one end of the flexible display panel is fixed on the winding shaft, and the other end of the flexible display panel is fixed on the first shell;
the flexible display panel comprises a light emitting surface and a backlight surface which are opposite, the backlight surface comprises two edge zones which are opposite along a second direction, at least one edge zone is provided with a plurality of first magnets along a first direction, the magnetism of the end parts of two adjacent first magnets is the same along the first direction, two adjacent first magnets are provided with a first interval, and the second direction is intersected with the first direction.
Compared with the prior art, the display device provided by the invention at least realizes the following beneficial effects:
the display device of the invention is characterized in that the first shell moves along a first direction relative to the second shell; the display device comprises a first shell, a second shell, a winding shaft, a flexible display panel, a winding shaft, a first shell, a second shell, a display device and a winding shaft, wherein the second shell is internally provided with an accommodating cavity, the accommodating cavity is internally provided with the winding shaft, one end of the flexible display panel is fixed on the winding shaft, the other end of the flexible display panel is fixed on the first shell, part of the flexible display panel is exposed out of the second shell in a first state, part of the flexible display panel is curled in the second shell, the display device is in a second state after the first shell moves towards one side far away from the second shell, and part of the flexible display panel curled in the second shell is exposed out of the second shell, so that the area of a display area of the flexible display panel can be increased, and the volume of the display device cannot be increased; the flexible display panel comprises a light-emitting surface and a backlight surface which are opposite, the backlight surface comprises two edge areas which are opposite along a second direction, at least one edge area is provided with a plurality of first magnets along a first direction, the magnetism of the end parts of two adjacent first magnets is the same along the first direction, and the two adjacent first magnets have a first interval.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic plan view of a display device according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A' of FIG. 1;
FIG. 3 is a schematic plane structure diagram of another display device provided by the present invention;
FIG. 4 is a cross-sectional view taken along line B-B' of FIG. 3;
FIG. 5 is a schematic diagram of a structure of a backlight side of a flexible display panel;
FIG. 6 is a schematic diagram of another structure on the backlight side of the flexible display panel;
FIG. 7 is a schematic diagram of another structure on the backlight side of the flexible display panel;
FIG. 8 is a schematic diagram of another structure on the backlight side of the flexible display panel;
FIG. 9 is a schematic diagram of another structure on the backlight side of the flexible display panel;
FIG. 10 is a schematic diagram of another structure on the backlight side of a flexible display panel;
FIG. 11 is a further sectional view taken along line A-A' of FIG. 1;
FIG. 12 is a further sectional view taken along line A-A' of FIG. 1;
fig. 13 is a further sectional view taken along line B-B' of fig. 3.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, fig. 1 is a schematic plane structure diagram of a display device according to the present invention, fig. 2 is a sectional view along a direction a-a 'in fig. 1, fig. 3 is a schematic plane structure diagram of another display device according to the present invention, fig. 4 is a sectional view along a direction B-B' in fig. 3, fig. 5 is a schematic structure diagram of a backlight side of a flexible display panel, fig. 6 is a schematic structure diagram of another backlight side of the flexible display panel, fig. 1 shows that the display device is in a first state, the flexible display panel is rolled in a second housing, and fig. 3 shows that the display device is in a second state, and the flexible display panel rolled in the second housing is exposed to the second housing. The display device 100 in the present embodiment includes a second casing 2, a first casing 1, and a flexible display panel 3, wherein the first casing 1 moves in a first direction X with respect to the second casing 2; an accommodating cavity 4 is arranged in the second shell 2, a winding shaft 5 is arranged in the accommodating cavity 4, one end of the flexible display panel 3 is fixed on the winding shaft 5, and the other end of the flexible display panel 3 is fixed on the first shell 1; the flexible display panel 3 includes an opposite light emitting surface 301 and a backlight surface 302, the backlight surface 302 includes two edge regions 3001 opposite to each other along a second direction Y, at least one edge region 3001 is provided with a plurality of first magnets 6 along a first direction X, and along the first direction X, the magnetic properties of the end portions of two adjacent first magnets 6 are the same, two adjacent first magnets 6 have a first gap 7, and the second direction Y intersects with the first direction X.
Optionally, the flexible display panel 3 in the present invention may be an organic self-light emitting display panel, in this embodiment, the structure of the flexible display panel 3 is not specifically limited (not shown in the figure), and optionally, the flexible display panel 3 at least includes: the flexible display panel 3 further includes a non-display area (not shown) surrounding the display area (not shown), the substrate may be a flexible substrate, and the array layer may include a plurality of sub-pixel control units for controlling whether the sub-pixels of the light emitting structure layer emit light or not. Optionally, a pixel definition layer may be further disposed on one side of the substrate, the pixel definition layer is configured to define a setting position of each sub-pixel of the light emitting structure layer, the array layer may include a gate metal layer, a source/drain metal layer, an active layer, and an insulating layer between each conductive film layer, so as to manufacture a sub-pixel control unit (not shown in the figure), and the flexible display panel 3 of this embodiment may further include a cover plate, an optical adhesive, and a film encapsulation layer (not shown in the figure).
In the display device 100 of the present embodiment, the first casing 1 moves in the first direction X with respect to the second casing 2; in the second housing 2, a receiving cavity 4 is provided, a winding shaft 5 is provided in the receiving cavity 4, one end of the flexible display panel 3 is fixed on the winding shaft 5, and the other end of the flexible display panel 3 is fixed on the first housing 1, referring to fig. 1 and 2, in a first state Z1, a part of the flexible display panel 3 is exposed out of the second housing 2, a part of the flexible display panel 3 is curled in the second housing 2, and after the first housing 1 moves to a side away from the second housing 2, the display device 100 is in a second state Z2, referring to fig. 3 and 4, a part of the flexible display panel 3 curled in the second housing 2 is exposed out of the second housing 2, thereby increasing the area of the display area of the flexible display panel 3 without increasing the volume of the display device 100.
The flexible display panel 3 in this embodiment includes an opposite light emitting surface 301 and a backlight surface 302, the backlight surface 302 is opposite to the light emitting surface 301, the light emitting surface 301 is a side of a display screen, the backlight surface 302 includes two edge areas 3001 opposite to each other along a second direction Y, an optional edge area 3001 may be a partial non-display area of the flexible display panel 3, at least one edge area 3001 is provided with a plurality of first magnets 6 along a first direction X, and in the first direction X, the magnetic properties of ends of two adjacent first magnets 6 are the same, two adjacent first magnets 6 have a first space 7, in fig. 5, the first magnets 6 are only provided in one edge area 3001A, the number of the first magnets 6 in fig. 5 is only schematically illustrated and does not represent the number of the first magnets 6 in an actual product, fig. 5 schematically illustrates that a left end of the 1 st first magnet 6 is an S-pole right end of the N-pole, the left end of the 2 nd first magnet 6 is an N-pole right end and S-N-S-N … … N-S, respectively, and so on, fig. 6 shows a case where the first magnets 6 are disposed in both edge areas 3001A and 3001B, fig. 6 schematically shows that the left end of the 1 st first magnet 6 in the edge area 3001A is an S-pole right end and an S-pole right end of the 2 nd first magnet 6, respectively, S-N-S-N … … N-S, and so on, fig. 6 schematically shows that the left end of the 1 st first magnet 6 in the edge area 3001B is an S-pole right end and an S-pole right end of the 2 nd first magnet 6 is an S-pole, and so on, S-N-S-N … … N-S, respectively, of course, the magnetic arrangement order of the first magnets 6 in the edge regions 3001A and 3001B may be the same or different, and is not specifically limited herein; it should be noted that the first space 7 between two adjacent first magnets 6 is not specifically limited here, and it is sufficient that the repulsive force generated between two first magnets 6 can cancel the winding stress, and is not specifically limited here.
The optional first magnet 6 may be fixed in the edge region 3001 of the backlight surface 302 by means of adhesion, and the connection manner of the first magnet 6 and the flexible display panel 3 is not particularly limited herein.
It can be understood that, in the related art, due to the flexible display panel 3 being curled in the accommodating cavity 4 of the second housing 2, due to the curling stress, the curling stress cannot be rapidly removed after the flexible display panel 3 is pulled out from the second housing 2 so as to restore to the flat state, which causes the flexible display panel 3 to bend or partially wrinkle, and especially the edge area 3001 of the flexible display panel 3 to bend or partially wrinkle seriously. In this embodiment, a plurality of first magnets 6 are disposed on at least one edge region 3001 along the first direction X, and along the first direction X, the magnetic properties of the end portions of two adjacent first magnets 6 are the same, and two adjacent first magnets 6 have a first gap 7, and because the magnetic properties of the end portions of two adjacent first magnets 6 are the same, two adjacent first magnets 6 are mutually exclusive.
Compared with the prior art, the display device of the embodiment has at least the following beneficial effects:
the display device 100 of the present invention is such that the first casing 1 moves in the first direction X with respect to the second casing 2; a containing cavity 4 is arranged in the second shell 2, a winding shaft 5 is arranged in the containing cavity 4, one end of the flexible display panel 3 is fixed on the winding shaft 5, the other end of the flexible display panel 3 is fixed on the first shell 1, under the first state Z1, part of the flexible display panel 3 is exposed out of the second shell 2, and part of the flexible display panel 3 is curled in the second shell 2, when the first shell 1 moves to the side far away from the second shell 2, the display device 100 is in the second state Z2, and part of the flexible display panel 3 curled in the second shell 2 is exposed out of the second shell 2, so that the area of the display area of the flexible display panel 3 can be increased, and the volume of the display device 100 cannot be increased; the flexible display panel 3 comprises a light emitting surface 301 and a backlight surface 302 which are opposite, the backlight surface 302 comprises two edge areas 3001 which are opposite along a second direction Y, at least one edge area 3001 is provided with a plurality of first magnets 6 along a first direction X, the magnetism of the end parts of two adjacent first magnets 6 is the same along the first direction X, and the two adjacent first magnets 6 have a first interval 7.
In some alternative embodiments, referring to fig. 7, fig. 7 is a schematic structural diagram of a backlight side of a flexible display panel, the backlight side 302 further includes an intermediate area 3002 located between two edge areas 3001, the intermediate area 3002 includes a plurality of second magnet rows 8, each second magnet row 8 includes a plurality of second magnets 9, in the first direction X, the magnetic properties of the end portions of two adjacent second magnets 9 are the same, and a second interval 10 is provided between two adjacent second magnets 9.
Alternatively, fig. 7 only schematically shows that the first magnet 6 is arranged in both edge areas 3001. Alternatively, the middle area 3002 located between the two edge areas 3001 may be a display area, which is not particularly limited herein. Fig. 7 only schematically shows that 3 rows of the second magnet rows 8 are arranged in the second direction Y, and the number of the second magnet rows 8 is not particularly limited here. Illustratively, in each second magnet row 8, the left end of the 1 st second magnet 9 is an S-pole right end and an N-pole right end, the left end of the 2 nd second magnet 9 is an S-pole right end, and so on are respectively S-N-S-N … … N-S, and the magnetic arrangement of the second magnets 9 is not specifically limited herein. It should be noted that the second interval 10 between two adjacent second magnets 9 is not specifically limited here, and it is sufficient that the repulsive force generated between two second magnets 9 can cancel the curling stress, and is not specifically limited here.
It can be understood that, in the related art, the flexible display panel 3 cannot be rapidly removed after the flexible display panel 3 is pulled out from the second housing 2 due to the curling stress in the receiving cavity 4 of the second housing 2, so as to recover to the flat state, and the flexible display panel 3 is bent or partially wrinkled due to the curling stress, and the bent or partially wrinkled flexible display panel 3 is also generated in the middle area 3002, in the embodiment, the middle area 3002 includes a plurality of second magnet rows 8, each second magnet row 8 includes a plurality of second magnets 9, the magnetic properties of the ends of two adjacent second magnets 9 are the same in the first direction X, and the second interval 10 is provided between two adjacent second magnets 9, and the magnetic properties of the ends of two adjacent second magnets 9 are the same, so that the two adjacent second magnets 9 are mutually exclusive and generate the repulsive force in the first direction X, thereby offsetting the curling stress of the middle area 3002 of the flexible display panel 3 in the first direction X, meanwhile, as the first magnet 6 is arranged in the edge area 3001, the edge area 3001 and the middle area 3002 are prevented from being curled when the flexible display panel 3 is in a flattened state, and the display performance is improved.
In some alternative embodiments, referring to fig. 8, fig. 8 is a schematic structural diagram of a backlight surface side of a flexible display panel, the backlight surface 302 further includes an intermediate area 3002 located between two edge areas 3001, the intermediate area 3002 includes a plurality of third magnet arrays 11, each third magnet array 11 includes a plurality of third magnets 12, the magnetic properties of the end portions of two adjacent third magnets 12 in the second direction Y are the same, and a third interval 13 is located between two adjacent third magnets 12 in the second direction Y.
Alternatively, fig. 8 only schematically shows that the first magnet 6 is arranged in both edge areas 3001. Alternatively, the middle area 3002 located between the two edge areas 3001 may be a display area, which is not particularly limited herein. Fig. 8 only schematically shows that 6 third magnet arrays 11 are arranged in the first direction X, and the number of the third magnet arrays 11 is not limited in detail here. Illustratively, in each third magnet row 11, the upper end of the 1 st third magnet 12 is an N pole, the lower end thereof is an N pole, the upper end of the 2 nd third magnet 12 is an N pole, and the like are S-N-S-N, respectively, and the magnetic arrangement of the third magnets 12 is not specifically limited herein. It should be noted that the third space 13 between two adjacent third magnets 12 in the second direction Y is not specifically limited here, and it is sufficient that the repulsive force generated between two third magnets 12 can cancel the winding stress, and is not specifically limited here.
It can be understood that, in the related art, the flexible display panel 3 cannot be rapidly removed after the flexible display panel 3 is pulled out from the second housing 2 due to the curling stress to recover to the flat state, and the flexible display panel 3 is bent or partially wrinkled due to the curling stress, and the bent or partially wrinkled flexible display panel 3 is also generated in the middle area 3002, in the embodiment, the middle area 3002 includes a plurality of third magnet columns 11, each third magnet column 11 includes a plurality of third magnets 12, the magnetic properties of the end portions of two adjacent third magnets 12 in the second direction Y are the same, and the third interval 13 is formed between two adjacent third magnets 12 in the second direction Y, and the magnetic properties of the end portions of two adjacent third magnets 12 in the second direction Y are the same, so that the two adjacent third magnets 12 are mutually exclusive, and thus generate the repulsive force in the second direction Y, therefore, the curling stress of the middle area 3002 of the flexible display panel 3 along the second direction Y is offset, and meanwhile, the edge area 3001 and the middle area 3002 are prevented from curling when the flexible display panel 3 is in a flattened state due to the arrangement of the first magnet 6 in the edge area 3001, so that the display performance is improved.
In some alternative embodiments, referring to fig. 9, fig. 9 is a schematic view of another structure on the backlight side of the flexible display panel, the backlight surface 302 further includes a middle area 3002 located between the two edge areas 3001, the middle area 3002 includes a magnet array 14, the magnet array 14 includes fourth magnets 15, the magnetic properties of the end portions of two adjacent fourth magnets 15 are the same in the first direction X and the second direction Y, and a fourth interval 16 is provided between two adjacent fourth magnets 15 in the first direction X and the second direction Y.
Alternatively, fig. 9 only schematically shows that the first magnet 6 is arranged in both edge areas 3001. Alternatively, the middle area 3002 located between the two edge areas 3001 may be a display area, which is not particularly limited herein. Fig. 9 only schematically shows the 4 × 8 magnet array 14, that is, the magnet array 14 has 4 rows and 8 columns, but here, the number of the magnet arrays 14 in the first direction X and the second direction Y is not specifically limited, and the shape of the fourth magnet 15 in the magnet array 14 is not specifically limited, and in this embodiment, only the fourth magnet 15 is taken as an example of a cross shape, and of course, the fourth magnet 15 may be formed by four magnets fixed by adhesion. Illustratively, each fourth magnet 15 includes four ends, and as shown in fig. 9, the fourth magnet 15 in the first row and first column of the fourth magnet 15 array 14 has an upper end pole with an S lower end pole with an N left end pole with an S right end pole with an N, the fourth magnet 15 in the first row and second column of the fourth magnet 15 array 14 has an upper end pole with an S lower end pole with an N left end pole with an N right end pole with an S, the fourth magnet 15 in the second row and first column of the fourth magnet 15 array 14 has an upper end pole with an N lower end pole with an S left end pole with an S right end pole with an N, the fourth magnet 15 in the second row and second column of the fourth magnet 15 array 14 has an upper end pole with an N lower end pole with an S left end pole with an N right end pole with an S right, whereby the poles in the first direction X are S-N-S-N … … N S, and the magnetic pole in the second direction Y is S-N-S-N-S, and the magnetic arrangement of the fourth magnet 15 is not particularly limited. It should be noted that the fourth gap 16 between two adjacent fourth magnets 15 in the first direction X and the second direction Y is not specifically limited, and the repulsive force generated between two fourth magnets 15 can cancel the curling stress, and is not specifically limited herein.
In the present embodiment, the middle area 3002 includes a magnet array 14, the magnet array 14 includes fourth magnets 15, the magnetic properties of the end portions of two adjacent fourth magnets 15 are the same in the first direction X and the second direction Y, and a fourth space 16 is provided between two adjacent fourth magnets 15 in the first direction X and the second direction Y, because the magnetic properties of the end portions of two adjacent fourth magnets 15 in the first direction X and the second direction Y are the same, two adjacent fourth magnets 15 in the first direction X and the second direction Y are repulsive, thereby simultaneously generating repulsive forces in the first direction X and the second direction Y, thereby canceling out the curling stress of the middle area 3002 of the flexible display panel 3 in the first direction X and in the second direction Y, and simultaneously preventing the curling of the edge area 3001 and the middle area 3002 when the flexible display panel 3 is in a flattened state due to the arrangement of the first magnet 6 in the edge area 3001, the display performance is improved.
In some alternative embodiments, referring to fig. 10 and 11, fig. 10 is a schematic structural diagram of a backlight surface side of the flexible display panel, fig. 11 is a cross-sectional view along a direction a-a' in fig. 1, a bendable member 30 is included in the first space 7 between two adjacent first magnets 6, and a thickness of each first magnet 6 is equal to a thickness of the bendable member 30 in a direction perpendicular to the light emitting surface 301 of the display device 100.
Alternatively, the material of the bendable member 30 is not particularly limited, and may be a material that can be repeatedly bent, such as sponge, foam, or polyurethane.
It will be appreciated that, in a direction perpendicular to the plane of the light exit surface 301 of the flexible display panel 3, the first magnet 6 has a certain thickness, after the first magnet 6 is disposed in the edge area 3001 of the backlight surface 302, along the direction perpendicular to the plane of the light emitting surface 301 of the flexible display panel 3, the thickness of the position where the first magnet 6 is disposed is greater than the thickness of the position where the first magnet 6 is not disposed, which may cause a step difference and an uneven condition during winding, the embodiment includes a bendable member 30 in the first space 7 of the adjacent two first magnets 6, in the direction perpendicular to the light emitting surface 301 of the display device 100, the thickness of the first magnet 6 is equal to the thickness of the bendable part 30, thus, the step difference between the position where the first magnet 6 is provided and the position where the first magnet 6 is not provided can be filled, and the unevenness generated when the winding is performed due to the step difference can be improved.
Optionally, the bendable member may be disposed on the whole surface, which may improve the strength of the flexible display panel 3. For example, a bendable member (not shown) is disposed between the adjacent second magnets 9 in the embodiment of fig. 7, a bendable member (not shown) is disposed between the adjacent third magnets 12 in the embodiment of fig. 8, and a bendable member (not shown) is disposed between the adjacent fourth magnets 15 in the embodiment of fig. 9.
In some optional embodiments, with continued reference to fig. 1 to 4, the second casing 2 includes a bottom plate 17, and a first side plate 18 and a second side plate 19 oppositely disposed along the first direction X, the bottom plate 17, the first side plate 18, and the second side plate 19 form the accommodating cavity 4, and the second casing 2 further includes a gear 20 therein; the first casing 1 comprises a third side plate 21 and a first top support plate 22 which are connected, the first top support plate 22 protrudes from the third side plate 21 along the first direction X, the first side plate 18 is located on one side of the second side plate 19 close to the third side plate 21, one side of the first top support plate 22 close to the first bottom plate 17 comprises a rack 23, and the rack 23 is meshed with the gear 20.
It is understood that the second housing 2 may also include side plates (not shown in the figures) in the second direction Y.
In this embodiment, the rack 23 is fixed on one side of the first top supporting plate 22 close to the first bottom plate 17 in the first housing 1, the gear 20 is fixed in the accommodating cavity 4 of the second housing 2, the rack 23 is engaged with the gear 20, optionally, the gear 20 is controlled to rotate by a motor (not shown in the figure), when the gear 20 rotates counterclockwise, the rack 23 moves along the first direction X in a direction away from the second housing 2, so as to drive the flexible display panel 3 to curl, a portion of the accommodating cavity 4 is exposed out of the second housing 2, when the gear 20 rotates clockwise, the rack 23 moves along the first direction X in a direction close to the second housing 2, so as to drive a portion of the flexible display panel 3 to be rolled in the second housing 2, thereby opening and closing the display device 100.
In some alternative embodiments, referring to fig. 12 and 13, fig. 12 is a further cross-sectional view taken along a-a 'of fig. 1, and fig. 13 is a further cross-sectional view taken along B-B' of fig. 3. The first side plate 18 and/or the third side plate 21 comprise a sensor 24.
Fig. 12 and 13 only schematically show the case where the sensor 24 is provided on the first side plate 18, but it is needless to say that the sensor 24 may be provided only on the third side plate 21, or the sensor 24 may be provided on both the first side plate 18 and the third side plate 21. The sensor 24 in this embodiment is used to control the rotation of a motor (not shown) for driving the winding shaft 5. When the gear 20 rotates clockwise, the rack 23 moves along the first direction X in a direction close to the second housing 2, the first housing 1 moves to one side of the second housing 2, thereby driving a part of the flexible display panel 3 to be wound in the second housing 2, and when the third side plate 21 of the first housing 1 contacts with the first side plate 18, the sensor 24 generates a signal which controls the motor driving the winding shaft 5 to stop rotating, so that the winding shaft 5 stops rotating.
In some alternative embodiments, with continued reference to fig. 12 and 13, the sensor 24 includes a pressure sensor 24.
The pressure sensor 24 in the present embodiment is used to control the rotation of a motor (not shown in the figure) for driving the winding shaft 5. When the gear 20 rotates clockwise, the rack 23 moves along the first direction X in a direction close to the second housing 2, the first housing 1 moves to one side of the second housing 2, thereby driving a part of the flexible display panel 3 to be wound in the second housing 2, when the third side plate 21 of the first housing 1 contacts with the first side plate 18, pressure is generated, the pressure sensor 24 generates a pressure sensing signal, and the pressure sensing signal controls the motor driving the winding shaft 5 to stop rotating, so that the winding shaft 5 stops rotating.
In some alternative embodiments, with continued reference to fig. 2, 4, 12 and 13, in a direction perpendicular to the plane of the bottom panel 17, the height of the first side panel 18 is less than the height of the second side panel 19, and the sum of the height of the first top support panel 22 and the thickness of the flexible display panel 3 is equal to the difference in height between the second side panel 19 and the first side panel 18.
It can be understood that, in order to ensure that the light emitting surface 301 of the flexible display panel 3 is flat, the height of the second side plate 19 is greater than the height of the second side plate 19, an opening is formed on one side of the second side plate 19, the flexible display panel 3 passes through the opening on one side of the second side plate 19 and is exposed in the second housing 2, and the height of the second side plate 19 is greater than the height of the second side plate 19, so that the first side plate 18 generates a step, the first top supporting plate 22 is placed on the step, and the sum of the height of the first top supporting plate 22 and the thickness of the flexible display panel 3 is equal to the height difference between the second side plate 19 and the first side plate 18, so that the flat of the flexible display panel 3 can be ensured, which is beneficial for displaying.
In some alternative embodiments, with continued reference to fig. 2, 4, 12 and 13, the receiving cavity 4 further includes a guide wheel 25, the flexible display panel 3 fits the guide wheel 25, and the guide wheel 25 is located on a side of the winding shaft 5 away from the third side plate 21 along the first direction X.
It can be understood that the guide wheel 25 is located on one side of the winding shaft 5 away from the third side plate 21, one end of the flexible display panel 3 is curled on the winding shaft 5 and guided by the guide wheel 25, the other end of the flexible display panel 3 is connected with the first housing 1, the flexible display panel 3 is unfolded when the guide wheel 25 rotates, friction between the flexible display panel 3 and the guide wheel 25 can be reduced by the guide wheel 25, the flexible display panel 3 can be guided, and the flexible display panel 3 is ensured to be flat when being unfolded.
In some alternative embodiments, with continued reference to fig. 2, 4, 12 and 13, the accommodating cavity 4 further includes a limiting wheel 26, the limiting wheel 26 is located on a side of the winding shaft 5 close to the guide wheel 25 along the first direction X, and the flexible display panel 3 fits the limiting wheel 26.
It can be understood that the flexible display panel 3 is wound on the winding shaft 5, and the flexible display panel 3 may be uneven due to the existence of the winding stress when the flexible display panel 3 is unwound from the winding shaft 5, and the provision of the limiting wheel 26 can ensure that the flexible display panel 3 is flat, thus ensuring that the flexible display panel 3 is in the same plane when being unwound.
In some alternative embodiments, with continued reference to fig. 2, 4, 5 to 13, the flexible display panel 3 includes a first region 27, a second region 28 and a third region 29 connected in sequence, the first region 27 is connected to the first casing 1 and exposed to the second casing 2, the third region 29 is fixed to the winding shaft 5, the first casing 1 moves relative to the second casing 2 in a direction away from the second casing 2, and at least a portion of the second region 28 is exposed to the second casing 2;
the first magnet 6 is located only in the first region 27 and the second region 28.
It is understood that the first casing 1 moves in the first direction X relative to the second casing 2 in the display device 100 of the present embodiment; a containing cavity 4 is arranged in the second shell 2, a winding shaft 5 is arranged in the containing cavity 4, one end of the flexible display panel 3 is fixed on the winding shaft 5, the other end of the flexible display panel 3 is fixed on the first shell 1, in the first state Z1, only the first region 27 of the flexible display panel 3 is exposed to the second housing 2, the second region 28 and the third region 29 of the flexible display panel 3 are hidden in the receiving cavity 4 of the second housing 2, wherein the third area 29 is fixed with the winding shaft 5 and is wound on the winding shaft 5, when the first housing 1 moves to the side far away from the second housing 2, the display device 100 is in the second state Z2, the third area 29 wound on the winding shaft 5 is unfolded, the second area 28 of the flexible display panel 3 is exposed out of the second housing 2, thereby, the area of the display area of the flexible display panel 3 can be increased without increasing the volume of the display device.
In this embodiment, the third zone 29 is wound around the winding shaft 5, and therefore, in order to facilitate winding, the first magnet 6 is not provided in the third zone 29, and the first magnet 6 is provided only in the first zone 27 and the second zone 28, which facilitates winding.
In some alternative embodiments, with continued reference to fig. 2, 4, 5-13, the material of the third zone comprises an elastic film.
It will be appreciated that the third section 29 is not intended to be shown, but is intended to be wound up on the winding shaft 5 only, and that the material of the third section 29 comprises an elastic die, whereby elastic deformation is possible, and that if the first and second sections 27, 28 are excessively pulled during unrolling (in the second state Z2), the elastic deformation due to the elastic die will not cause the flexible display panel 3 to break.
As can be seen from the above embodiments, the display device provided by the present invention at least achieves the following beneficial effects:
the display device of the invention is characterized in that the first shell moves along a first direction relative to the second shell; an accommodating cavity is arranged in the second shell, a winding shaft is arranged in the accommodating cavity, one end of the flexible display panel is fixed on the winding shaft, the other end of the flexible display panel is fixed on the first shell, part of the flexible display panel is exposed out of the second shell in a first state, part of the flexible display panel is curled in the second shell, after the first shell moves to one side far away from the second shell, the display device is in a second state, and part of the flexible display panel curled in the second shell is exposed out of the second shell, so that the area of a display area of the flexible display panel can be increased, and meanwhile, the volume of the display device cannot be increased; the flexible display panel comprises a light-emitting surface and a backlight surface which are opposite, the backlight surface comprises two edge areas which are opposite along a second direction, at least one edge area is provided with a plurality of first magnets along a first direction, the magnetism of the end parts of two adjacent first magnets is the same along the first direction, and the two adjacent first magnets have a first interval.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (13)
1. A display device comprising a second housing, a first housing and a flexible display panel, wherein,
the first housing moves in a first direction relative to the second housing; an accommodating cavity is formed in the second shell, a winding shaft is arranged in the accommodating cavity, one end of the flexible display panel is fixed on the winding shaft, and the other end of the flexible display panel is fixed on the first shell;
the flexible display panel comprises a light emitting surface and a backlight surface which are opposite, the backlight surface comprises two edge regions which are opposite along a second direction, at least one edge region is provided with a plurality of first magnets along the first direction, the magnetism of the end parts of two adjacent first magnets is the same along the first direction, the two adjacent first magnets have a first interval, and the second direction is intersected with the first direction.
2. The display device according to claim 1, wherein the backlight surface further comprises an intermediate region located between the two edge regions, the intermediate region comprises a plurality of second magnet rows, each of the second magnet rows comprises a plurality of second magnets, and ends of two adjacent second magnets have the same magnetism along the first direction and a second space is provided between two adjacent second magnets.
3. The display device according to claim 1, wherein the backlight surface further comprises a middle region located between the two edge regions, the middle region comprises a plurality of third magnet columns, each of the third magnet columns comprises a plurality of third magnets, the magnetic properties of the ends of two adjacent third magnets are the same in the second direction, and a third space is provided between two adjacent third magnets in the second direction.
4. The display device according to claim 1, wherein the backlight surface further comprises a middle region located between the two edge regions, the middle region comprises a magnet array, the magnet array comprises fourth magnets, the magnetic properties of the ends of two adjacent fourth magnets are the same in the first direction and the second direction, and a fourth gap is provided between two adjacent fourth magnets in the first direction and the second direction.
5. The display device according to claim 1, wherein a bendable member is included in the first space between two adjacent first magnets, and a thickness of the first magnets is equal to a thickness of the bendable member in a direction perpendicular to a light exit surface of the display device.
6. The display device according to claim 1, wherein the second casing includes a bottom plate, and a first side plate and a second side plate which are oppositely disposed along the first direction, the bottom plate, the first side plate, and the second side plate form the receiving cavity, and a gear is further included in the second casing;
the first shell comprises a third side plate and a first top supporting plate which are connected, the first top supporting plate protrudes out of the third side plate along the first direction, the first side plate is located on one side, close to the third side plate, of the second side plate, and one side, close to the first bottom plate, of the first top supporting plate comprises a rack which is meshed with the gear.
7. The display device of claim 6, wherein the first side panel and/or the third side panel comprises a sensor.
8. The display device of claim 7, wherein the sensor comprises a pressure sensor.
9. The display device according to claim 6, wherein the height of the first side plate is smaller than the height of the second side plate in a direction perpendicular to the plane of the bottom plate, and the sum of the height of the first top support plate and the thickness of the flexible display panel is equal to the difference between the heights of the second side plate and the first side plate.
10. The display device according to claim 6, wherein the receiving cavity further comprises a guide wheel, the flexible display panel is attached to the guide wheel, and the guide wheel is located on a side of the winding shaft away from the third side plate along the first direction.
11. The display device according to claim 10, wherein the accommodating cavity further comprises a limiting wheel, the limiting wheel is located on one side of the winding shaft close to the guide wheel along the first direction, and the flexible display panel is attached to the limiting wheel.
12. The display device according to claim 1, wherein the flexible display panel includes a first region, a second region and a third region connected in sequence, the first region is connected to the first housing and exposed to the second housing, the third region is fixed to the winding shaft, the first housing moves relative to the second housing in a direction away from the second housing, and at least a portion of the second region is exposed to the second housing;
the first magnet is located only in the first region and the second region.
13. A display device as claimed in claim 12, characterized in that the material of the third region comprises an elastic film.
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| CN202210149787.2A CN114550587B (en) | 2022-02-18 | 2022-02-18 | display device |
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| CN202210149787.2A CN114550587B (en) | 2022-02-18 | 2022-02-18 | display device |
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| CN114550587B (en) | 2023-11-28 |
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