CN112419892A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112419892A CN112419892A CN202011281581.2A CN202011281581A CN112419892A CN 112419892 A CN112419892 A CN 112419892A CN 202011281581 A CN202011281581 A CN 202011281581A CN 112419892 A CN112419892 A CN 112419892A
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- 238000005452 bending Methods 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 100
- 238000007493 shaping process Methods 0.000 claims description 21
- 239000011241 protective layer Substances 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 13
- 230000001788 irregular Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 22
- 238000000465 moulding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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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Abstract
The invention discloses a wheel display panel and a display device, wherein the display panel comprises a substrate base plate, the substrate base plate comprises a plurality of island structures which are separated from each other and a plurality of hinge structures which are connected with adjacent island structures, a plurality of display units are respectively positioned on the island structures, a plurality of signal lines are connected with the display units and positioned on the hinge structures, if the display panel is stretched, the stretching lengths of at least two side edges of the hinge structures which are not connected with the island structures are different, the display panel can be attached to special-shaped display devices with different bending angles, and the applicability of the display panel is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
Along with the development of science and technology, flexible display screen technology has more and more extensive application prospect, and flexible display device also gradually comes into people's life, and the equipment that adopts flexible display screen has many advantages such as convenient to carry, flexible, can warp wantonly etc..
The display area is used for displaying images, the lead wire area is used for providing image signals to the display area, and the lead wire area is a rigid lead wire which cannot be stretched.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, so that the display panel can be attached to special-shaped display devices with different bending angles, and the applicability of the display panel is improved.
In a first aspect, an embodiment of the present invention provides a display panel, including: a substrate base including a plurality of island structures spaced apart from each other and a plurality of hinge structures connecting adjacent island structures;
a plurality of display units respectively located on the island structures;
a plurality of signal lines connected to the display unit and located on the hinge structure;
if the display panel is stretched, the stretching lengths of at least two sides of the hinge structure, which are not connected with the island structure, are different.
In a second aspect, an embodiment of the present invention further provides a display device, including the display panel according to any one of the first aspects;
further comprising: a bonding layer for attaching the display panel to the surface of irregular display device
According to the display panel and the display device provided by the embodiment of the invention, the island structures which are separated from each other are arranged and connected through the hinge structure, when the display panel is stretched, the stretching lengths of at least two sides which are not connected with the island structures in the hinge structure are different, and when the display panel in the stretching state is attached to the support body with a fixed shape (such as a curved surface), at the moment, the stretching lengths of the hinge structures in the display panel can be adaptively changed, so that the display panel can be attached to the special-shaped display device with different bending angles, and the applicability of the display panel is improved.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a hinge structure of a display panel in a stretched state according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a film structure of a hinge structure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a film structure of another hinge structure provided in an embodiment of the present invention;
FIG. 5 is a schematic diagram of a film structure of a hinge structure of a display panel in an unstretched state according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a film structure of a hinge structure of a display panel in a stretched state according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a hinge structure of a display panel in a stretched state according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a hinge structure in the display panel provided in FIG. 8;
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a hinge structure of the display panel according to an embodiment of the present invention in a stretched state, where as shown in fig. 1 and fig. 2, the display panel includes a substrate 10, the substrate 10 includes a plurality of island structures 20 spaced apart from each other and a plurality of hinge structures 30 connecting adjacent island structures, a plurality of display units 40 respectively located on the island structures 20, and a plurality of signal lines 50 connecting the display units 40 and located on the hinge structures 30, and if the display panel is stretched, stretching lengths of at least two sides of the hinge structures 30 not connected to the island structures 20 are different.
Illustratively, as shown in fig. 1, the display panel includes a plurality of island structures 20 and a hinge structure 30, the plurality of island structures 20 being separated from each other, the hinge structure 30 connecting adjacent island structures 20, a plurality of signal lines 50 located on the hinge structure 30 implementing display of the display panel by providing signals to the display units 40 located on the island structures 20, wherein the hinge structure 30 may be integrally formed with the island structures 20.
When the display panel is in an unstretched state, the hinge structure 30 between two adjacent island structures 20 is in a contracted state, that is, the hinge structure 30 is in a bent shape in a plane, and at this time, the plurality of signal lines 50 on the hinge structure 30 are in the same shape as the bent shape of the hinge structure 30. When the display panel is in the stretched state, if the stretching direction of the display panel is along the first direction X, the stretching lengths of the two sides of the hinge structure 30 extending along the first direction X in the display panel in the stretched state are different. For example, as shown in fig. 2, two adjacent island structures 20 in the display panel are connected by a hinge structure 30, when the stretching direction of the display panel is the first direction X, the stretching lengths of two sides L1 and L2 of the hinge structure 20 extending along the first direction X in the hinge structure 30 are different. If the display panel in the stretched state is attached to a support having a fixed shape (e.g., a curved surface), the stretched length of the side of the hinge structure 30 in the display panel can be adaptively changed, so that the display panel can be attached to different display devices having different bending angles, thereby improving the applicability of the display panel.
Fig. 2 exemplarily shows that the stretching direction of the display panel is along the first direction X, the stretching lengths of two side edges L1 and L2 of the hinge structure 30, which are not connected to the island structure 20 and extend along the first direction X, are different, and the stretching direction of the display panel may also be along the second direction Y, where the first direction X intersects the second direction Y, and where the stretching lengths of two side edges of the hinge structure 30, which are not connected to the island structure 20 and extend along the second direction Y, are different.
Fig. 1 exemplarily shows that the shape of the island structure 20 is a rectangle, and the island structure may be a triangle, a polygon, a circle, a closed loop, or the like, and the specific shape of the island structure 20 is not limited in the embodiment of the present invention.
According to the display panel provided by the embodiment of the invention, the island structures which are separated from each other are arranged and connected through the hinge structure, when the display panel is stretched, the stretching lengths of at least two sides which are not connected with the island structures in the hinge structure are different, and when the display panel in the stretched state is attached to the support body with a fixed shape (such as a curved surface), the stretching lengths of the hinge structures in the display panel can be adaptively changed, so that the display panel can be attached to the anisotropic display device with different bending angles, and the applicability of the display panel is improved.
Optionally, in the base of the above embodiment, fig. 3 is a schematic diagram of a film structure of a hinge structure according to an embodiment of the present invention, and as shown in fig. 3, the hinge structure 30 includes a first molding layer 31, a signal line layer 32, and a first protective layer 33, where the signal line layer 32 is located on a side of the first molding layer 31 away from the substrate 10, and the first protective layer 33 is located on a side of the signal line layer 32 away from the first molding layer 31.
As shown in fig. 3, the hinge structure 30 includes a first shaping layer 31, wherein the first shaping layer 31 may be disposed on the same layer as the substrate 10 in the island structure 20 region, and the substrate doping in the hinge structure 30 region changes the physical properties of the substrate material surface in the hinge structure 30 region, so that the surface stress of the substrate in the hinge structure region changes and bends to form the first shaping layer 31. Because the substrate base plate located in the island structure 20 region and the first shaping layer 31 located in the hinge structure 30 region are arranged in the same layer, that is, the substrate base plate located in the island structure 20 region and the first shaping layer 31 located in the hinge structure 30 region are prepared and formed in the same process, the preparation efficiency of the display panel is improved, and the overall thickness of the display panel is reduced.
Continuing to refer to fig. 3, signal line layer 32 is disposed on first plastic layer 31 after first plastic layer 31 is formed, when the display panel is in an unstretched state, at this time, the signal line of signal line layer 32 is the same as the bending shape of first plastic layer 31 formed by doping, first protective layer 33 is located on one side of signal line layer 32 departing from first plastic layer 31, and first protective layer 33 is the same as the bending shape of first plastic layer 31, cover one side of signal line layer 32 departing from first plastic layer 31 through first protective layer 33, utilize first protective layer 33 to protect the signal line of signal line layer 32, when bending or stretching the display panel, the phenomenon that the signal line of signal line layer 32 breaks or wears out is avoided, and then the display signal provided by the signal line of signal line layer 32 is abnormal, and the display effect of the display panel is affected. When the display panel is in a stretched state, the signal line layer 32 and the first passivation layer 33 on the first shaping layer 31 change with the stretching angle of the display panel.
It should be noted that the material of the first protection layer 33 may be a flexible glass protection layer, and may also be other flexible materials, and the embodiment of the present invention does not specifically limit the material of the first protection layer 33, as long as it is ensured that when the display panel is stretched, the first protection layer 33 can be stretched, so as to protect the signal lines of the signal line layer 32.
Optionally, on the basis of the foregoing embodiment, fig. 4 is a schematic diagram of a film structure of another hinge structure provided in the embodiment of the present invention, and as shown in fig. 4, the hinge structure 30 further includes a second shaping layer 34 and a second protection layer 35, the second protection layer 35 is located on a side of the first shaping layer 31 away from the signal line layer 32, and the second shaping layer 34 is located between the signal line layer 32 and the first protection layer 33.
Illustratively, as shown in fig. 4, the hinge structure further includes a second molding layer 34 and a second protection layer 35, where the second protection layer 35 is located on a side of the first molding layer 31 facing away from the signal line layer 32, the second molding layer 34 is located between the signal line layer 32 and the first protection layer 33, and the signal line in the signal line layer 32 is protected by using multiple protection layers.
Optionally, a side of the first protection layer 33 facing the second shaping layer 34 comprises a plurality of first protrusion structures. If the display panel is not stretched, an included angle between the contact surface of the first protruding structures and the first protection layer and the axial direction of the first protruding structures is a first included angle, if the display panel is stretched, included angles between the contact surface of at least part of the first protruding structures and the first protection layer and the axial direction of the first protruding structures are second included angles, and the first included angle is larger than the second included angle.
For example, fig. 5 is a schematic diagram of a film structure of a hinge structure of a display panel in an unstretched state according to an embodiment of the present invention, fig. 6 is a schematic diagram of a film structure of a hinge structure of a display panel in a stretched state according to an embodiment of the present invention, and with reference to fig. 5 and fig. 6, a side of the first protection layer 33 facing the second shaping layer 34 includes a plurality of first protrusion structures 330, when the display panel is in an unstretched state, as shown in fig. 5, an included angle between a contact surface (shown by a thick solid line in the figure) of the first protrusion structures 330 and an axial direction P1 of the first protrusion structures 330 is a first included angle θ 1, when the display panel is stretched, a stress generated by deformation of the first protection layer 33 in a pulled state is released by a hollow structure between two adjacent first protrusion structures 330, so as to avoid a crack phenomenon of the first protection layer 33 due to deformation after the display panel is stretched, and then can't play the guard action to the signal line of signal line layer 32, guarantee display panel's display effect, the contained angle between the axial P1 of the contact surface of the first protruding structure 330 that takes place deformation and first protective layer 33 and first protruding structure 330 this moment is second contained angle theta 2, and first contained angle theta 1 is greater than second contained angle theta 2.
Optionally, with continued reference to fig. 5 and 6, the side of the second protective layer 35 facing the first shaping layer 31 comprises a plurality of second protruding structures 350. If the display panel is not stretched, an included angle between the contact surface of the second protrusion structure 350 and the second protection layer 35 and the axial direction P2 of the second protrusion structure 350 is a third included angle θ 3, and if the display panel is stretched, an included angle between the contact surface of at least a part of the second protrusion structure 350 and the second protection layer 35 and the axial direction P2 of the second protrusion structure 350 is a fourth included angle θ 4, where the third included angle θ 3 is greater than the fourth included angle θ 4.
With continued reference to fig. 5 and 6, one side of the second protection layer 35 facing the first shaping layer 31 includes a plurality of second protrusion structures 350, when the display panel is in an unstretched state, as shown in fig. 5, an included angle between a contact surface (shown by a bold dashed line in the figure) of the second protrusion structures 350 and the second protection layer 35 and an axial direction P2 of the second protrusion structures 350 is a third included angle θ 3, when the display panel is stretched, a stress generated by deformation of the second protection layer 35 in a pulling-up state is released by using a hollow structure between two adjacent second protrusion structures 350, so as to avoid a phenomenon that the second protection layer 35 is broken due to deformation after the display panel is stretched, and further the signal line of the signal line layer 32 cannot be protected, so as to ensure a display effect of the display panel, an included angle between the contact surface of the deformed second protrusion structures 350 and the second protection layer 35 and the axial direction P2 of the second protrusion structures 350 is a fourth included angle θ 4, and the first included angle theta 3 is larger than the second included angle theta 4.
It should be noted that fig. 5 and fig. 6 illustrate, as a schematic structural diagram of a part of the hinge structure, deformation of the first protrusion structure in the first protective layer and the second protective layer of the hinge structure when the display panel is in a stretched state and in a non-stretched state.
Optionally, if the display panel is stretched, the larger the distance between the adjacent island structures is, the smaller a second included angle between the contact surface of the first protrusion structure and the first protection layer and the axial direction of the first protrusion structure is, the larger the distance between the adjacent island structures is, and the smaller a fourth included angle between the contact surface of the second protrusion structure and the first protection layer and the axial direction of the second protrusion structure is.
When the display panel is stretched, if the distance between adjacent island structures in the display panel is large, at the moment, a second included angle between the contact surface of the first protruding structure and the first protection layer and the axial direction of the first protruding structure is small, the distance between the adjacent island structures is large, a fourth included angle between the contact surface of the second protruding structure and the first protection layer and the axial direction of the second protruding structure is small, when the display panel is ensured to be at a large stretching angle, the stress of the first protection layer and the stress of the second protection layer can be released by the first protruding structure and the second protruding structure, and the phenomenon that the first protection layer and the second protection layer are broken is avoided.
Optionally, along the stretching direction of the display panel, the width of the island structure is D1, the width of the hinge structure when the display panel is in an unstretched state is D2, and the width of the hinge structure when the display panel is in a stretched state is D3, where 3D2< D1, and D3<3D 1.
For example, fig. 7 is a schematic structural diagram of a hinge structure when a display panel is in an unstretched state according to an embodiment of the present invention, as shown in fig. 7, when the display panel is stretched in a first direction X, a width of an island structure is D1, and when the display panel is in the unstretched state, a width of the hinge structure is D2, D1 and D2 satisfy 3D2< D1, and by setting a width of the hinge structure to be less than one third of a width of the island structure when the display panel is in the unstretched state, the hinge structure is ensured to be in a certain contracted state when the display panel is in the unstretched state, and the display effect of the display panel is prevented from being affected by the wider width of the hinge structure.
Exemplarily, referring to fig. 2, fig. 2 is a schematic structural diagram of the display panel in the stretched state according to the embodiment of the present invention, as shown in fig. 2, the display panel is stretched along the X direction, the width of the island structure 20 is D1, the width of the hinge structure 30 in the stretched state at this time is D3, and D1 and D3 satisfy D3<3D1, and by setting the width of the island structure 20, which is smaller than 3 times the width D3 of the hinge structure 30 in the display panel stretching direction, the stretching width of the hinge structure 30 in the display panel stretching direction is avoided to be wider, so that the number of the island structures 20 in the display area in the display panel is smaller, the display resolution when the display panel is in the stretched state is lower, and the display effect of the display panel is affected.
Optionally, on the basis of the foregoing embodiment, fig. 8 is a schematic structural diagram of another display panel provided in the embodiment of the present invention, as shown in fig. 8, a side of at least a portion of the hinge structure 30 includes a notch, and a length of the side of the hinge structure 30 connected to the island structure 20 is smaller than a length of the side of the island structure 40.
Illustratively, as shown in fig. 8, when adjacent island structures are connected by a hinge structure, by providing that the side of a part of the hinge structure includes a gap, as shown in fig. 8, the length of the side of the hinge structure 30 connected to the island structure 20 is smaller than the length of the side of the island structure 40, and since the side of a part of the hinge structure includes a gap, the space for contraction and stretching of the hinge structure can be increased, so as to ensure that at least two sides of the hinge structure connecting adjacent island structures in the display panel realize non-equidistant stretching.
Alternatively, the island structures 20 are arranged in an array, and the hinge structures 30 connect two adjacent island structures 20 in the same row or the same column.
Exemplarily, as shown in fig. 1, the island structures 20 are arranged in an array, the hinge structures 30 connect two adjacent island structures 20 in the same row or the same column, when the display panel is stretched along the first direction X, the hinge structures 30 connecting two adjacent island structures 20 in the same row are stretched along the first direction X, when the display panel is stretched along the second direction Y, the hinge structures 30 connecting two adjacent island structures 20 in the same column are stretched along the second direction Y, the first direction X and the second direction Y intersect, so that the stretching of the display panel in different directions is achieved, and when the display panel in a stretched state is attached to a support having a fixed shape (e.g., a curved surface), at this time, since the stretching length of the hinge structures in the display panel can be adaptively changed along the first direction and the second direction, the display panel can be attached to an anisotropic display device having different bending angles, the applicability of the display panel is improved.
Alternatively, the island structures 20 located in adjacent rows or adjacent columns are staggered, and the hinge structures 30 connect two adjacent island structures 20 in the same row and the same column, respectively.
Exemplarily, as shown in fig. 8, the island structures 20 located in adjacent rows or adjacent columns are staggered, the hinge structures 30 connect two adjacent island structures 20 in the same row and the same column, respectively, fig. 9 is a schematic structural diagram of the hinge structure in the display panel provided in fig. 8, in combination with fig. 8 and 9, when the display panel is stretched along the first direction X, the hinge structure 30 connecting two adjacent island structures 20 in the same row is stretched along the first direction X, when the display panel is stretched along the second direction Y, the hinge structure 30 connecting two adjacent island structures 20 in the same column is stretched along the second direction Y, the first direction X and the second direction Y intersect, so that stretching of the display panel in different directions is achieved, and further, when the display panel in a stretched state is attached to a support body having a fixed shape (e.g. a curved surface), at this time, since the stretched length of the hinge structure in the display panel can be adaptively changed along the first direction and the second direction, therefore, the display panel can be attached to the opposite-type display device with different bending angles, and the applicability of the display panel is improved.
It should be noted that, when the hinge structure in the display panel is the structure shown in fig. 9, at this time, the hinge structure located outside the dotted line shown in fig. 9 may deform, so as to ensure that the hinge structure is suitable for the flexible display panel to stretch the display panel.
Optionally, the display panel further comprises a sensor array for detecting a degree of bending or deformation of the display panel.
Optionally, the sensor array includes a sensor detection unit and a sensor receiving unit, the sensor detection unit and the sensor receiving unit are respectively located at two opposite sides of the island structure, the sensor detection unit is configured to output an electromagnetic signal, and the sensor receiving unit detects a degree of bending or deformation of the display panel according to the received electromagnetic signal.
The sensor array is arranged in the display panel and comprises a sensor detection unit and a sensor receiving unit, the sensor detection unit and the sensor receiving unit are respectively positioned on two opposite sides of the island structure, the sensor detection unit is used for outputting electromagnetic signals, and the sensor receiving unit detects the bending or deformation degree of the display panel according to the received electromagnetic signals. When the display panel is in an unstretched state, an included angle is formed between an electromagnetic signal output by the sensor detection units positioned on the two opposite sides of the island structure and an electromagnetic signal line received by the sensor receiving unit, when the display panel is in a stretched state, because the stretching lengths of at least two side edges of the hinge structure which are not connected with the island structure are different, an included angle formed between an electromagnetic signal output by the sensor detection units positioned on the two opposite sides of the island structure and an electromagnetic signal line received by the sensor receiving unit is different from an included angle formed between an electromagnetic signal received by the display panel in an unstretched state, and the bending or deformation degree of the display panel is detected according to the change of the angle of the electromagnetic signal.
It should be noted that the sensor detection unit and the sensor receiving unit may be electromagnetic sensors, strain sensors, piezoelectric sensors, or resistive sensors, and the embodiments of the present invention do not specifically limit the forms of the sensors in the sensor receiving unit and the sensor detection unit.
Optionally, on the basis of the foregoing embodiment, fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 10, the display device includes the display panel 100 according to any one of the foregoing embodiments, and further includes: and the bonding layer is used for attaching the display panel to the surface of the irregular display device. As shown in fig. 10, when the display panel 100 is applied to an irregular display device, at a position a in the display panel, at this time, the stretching lengths of the two sides of the hinge structure 30, which is not connected to the island structure 20 and extends along the second direction Y, are different, so that the display panel is attached to the display device of the opposite type.
The display device provided by the embodiment of the invention includes the display panel provided by the embodiment of the invention, so that the display device also has the beneficial effects of the display panel provided by the embodiment of the invention, and the same points can be understood by referring to the above, and the details are not repeated hereinafter.
It should be noted that the display device provided in the embodiment of the present invention may be a mobile phone, a tablet computer, a smart wearable device (e.g., a smart watch), and other display devices with a fingerprint identification function known to those skilled in the art, which is not limited in the embodiment of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (13)
1. A display panel, comprising:
a substrate base including a plurality of island structures spaced apart from each other and a plurality of hinge structures connecting adjacent island structures;
a plurality of display units respectively located on the island structures;
a plurality of signal lines connected to the display unit and located on the hinge structure;
if the display panel is stretched, the stretching lengths of at least two sides of the hinge structure, which are not connected with the island structure, are different.
2. The display panel of claim 1, wherein the hinge structure comprises a first shaping layer, a signal line layer, and a first protective layer;
the signal line layer is located on one side, away from the substrate base plate, of the first shaping layer, and the first protection layer is located on one side, away from the first shaping layer, of the signal line layer.
3. The display panel of claim 2, wherein the hinge structure further comprises a second shaping layer and a second protective layer;
the second protective layer is positioned on one side, away from the signal wire layer, of the first shaping layer;
the second shaping layer is located between the signal line layer and the first protection layer.
4. The display panel of claim 3, wherein a side of the first protective layer facing the second shaping layer comprises a plurality of first protrusion structures;
if the display panel is not stretched, an included angle between the contact surface of the first protrusion structure and the first protection layer and the axial direction of the first protrusion structure is a first included angle;
if the display panel is stretched, at least part of the contact surfaces of the first protruding structures and the first protective layer and the axial direction of the first protruding structures form a second included angle;
the first included angle is greater than the second included angle.
5. The display panel of claim 3, wherein a side of the second protective layer facing the first shaping layer comprises a plurality of second raised structures;
if the display panel is not stretched, an included angle between the contact surface of the second protruding structure and the second protective layer and the axial direction of the second protruding structure is a third included angle;
if the display panel is stretched, at least part of the contact surfaces of the second protruding structures and the second protective layer form a fourth included angle with the axial direction of the second protruding structures;
the third included angle is greater than the fourth included angle.
6. The display panel according to claim 4 or 5, wherein a second included angle between a contact surface of the first protrusion structure and the first protection layer and an axial direction of the first protrusion structure is smaller if a distance between adjacent island structures is larger when the display panel is stretched; the larger the distance between the adjacent island structures is, the smaller a fourth included angle between a contact surface of the second bump structure and the first protection layer and an axial direction of the second bump structure is.
7. The display panel of claim 1, wherein along the stretching direction of the display panel, the width of the island structure is D1, the width of the hinge structure when the display panel is in the unstretched state is D2, and the width of the hinge structure when the display panel is in the stretched state is D3, wherein 3D2< D1 and D3<3D 1.
8. The display panel of claim 1, wherein at least a portion of the side of the hinge structure comprises a notch, and the length of the side of the hinge structure connected to the island structure is less than the length of the side of the island structure.
9. The display panel according to claim 1, wherein the island structures are arranged in an array, and the hinge structure connects two adjacent island structures in the same row or the same column.
10. The display panel according to claim 1, wherein the island structures in adjacent rows or adjacent columns are staggered, and the hinge structures connect two adjacent island structures in the same row and the same column, respectively.
11. The display panel according to claim 1, wherein the display panel further comprises a sensor array for detecting a degree of bending or deformation of the display panel.
12. The display panel of claim 11, wherein the sensor array comprises a sensor detection unit and a sensor receiving unit;
the sensor detection unit and the sensor receiving unit are respectively positioned on two opposite sides of the island structure, the sensor detection unit is used for outputting electromagnetic signals, and the sensor receiving unit detects the bending or deformation degree of the display panel according to the received electromagnetic signals.
13. A display device comprising the display panel according to any one of claims 1 to 12;
further comprising: and the bonding layer is used for attaching the display panel to the surface of an irregular display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011281581.2A CN112419892B (en) | 2020-11-16 | 2020-11-16 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011281581.2A CN112419892B (en) | 2020-11-16 | 2020-11-16 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
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| CN112419892A true CN112419892A (en) | 2021-02-26 |
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| CN114078384A (en) * | 2021-11-03 | 2022-02-22 | 武汉华星光电半导体显示技术有限公司 | Display panel and mobile terminal |
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