CN113540192B - Display panel and display device - Google Patents
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- CN113540192B CN113540192B CN202110742486.6A CN202110742486A CN113540192B CN 113540192 B CN113540192 B CN 113540192B CN 202110742486 A CN202110742486 A CN 202110742486A CN 113540192 B CN113540192 B CN 113540192B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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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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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- General Physics & Mathematics (AREA)
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display panel and a display device. The display panel comprises a substrate base plate, a first flat display area, a bent display area and a second flat display area, wherein the first flat display area, the bent display area and the second flat display area are arranged along a first direction; the curved display area comprises a plurality of mutually isolated display parts which are arranged on the substrate base plate in an array distribution manner, and a plurality of connecting parts which connect the adjacent display parts, wherein the connecting parts can be stretched; when the display panel is in a folded state, the pixel density of the curved display area is smaller than that of the first flat display area and that of the second flat display area due to the fact that the curved display area is stretched; thereby reducing the problem of display failure caused by 'creases' in the curved display area due to bending.
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 display panel technology, flexible folding screen more and more receives the welcome of market, however because there is the length difference in the kink of folding screen at flat state and the state of buckling, lead to folding screen after buckling many times, the fold appears in the kink and leads to the fact "crease", influences user experience, and outward appearance aesthetic property is relatively poor.
Therefore, it is desirable to develop a new foldable display panel to overcome the above-mentioned drawbacks of the conventional display panel.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, wherein the stretchable layout design of a curved display area is realized, so that when the curved display area of the display panel is curved or folded, folds of the curved display area caused by bending are effectively avoided, and the risk of poor display is reduced.
An embodiment of the present invention provides a display panel, including: the substrate comprises a first plane display area, a bent display area and a second plane display area, wherein the first plane display area, the bent display area and the second plane display area are arranged along a first direction;
the curved display area comprises a plurality of mutually isolated display parts which are arranged on the substrate base plate in an array distribution manner, and a plurality of connecting parts which connect the adjacent display parts, and the connecting parts can be stretched;
the curved display region arrangement comprises a plurality of pixel units with a first pixel density, the display portion comprises at least one pixel unit, the first planar display region and the second planar display region comprise a plurality of pixel units with a second pixel density, wherein,
when the flexible display panel is in a first state, the first plane display area, the second plane display area and the bent display area are on the same display plane, and the first pixel density is equal to the second pixel density; when the flexible display panel is in a second state, the first plane display area and the second plane display area are not in the same display plane, and the first pixel density is smaller than the second pixel density.
Based on the same inventive concept, the embodiment of the invention further provides a display device, which comprises the display panel provided by any embodiment of the invention.
The display panel provided by the embodiment of the invention comprises a substrate base plate, a first flat display area, a bent display area and a second flat display area, wherein the first flat display area, the bent display area and the second flat display area are arranged along a first direction; the curved display area comprises a plurality of mutually isolated display parts which are arranged on the substrate base plate in an array distribution manner, and a plurality of connecting parts which connect the adjacent display parts, wherein the connecting parts can be stretched; when the display panel is in a folded state, the pixel density of the curved display area is smaller than that of the first flat display area and that of the second flat display area due to the fact that the curved display area is stretched; thereby reducing the problem of display failure caused by 'creases' in the curved display area due to bending.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic view of a display panel in a first state according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of the curved display area AW;
FIG. 3 is an enlarged partial view of the position Q1 in FIG. 1;
fig. 4 is a schematic view of a display panel in a second state according to an embodiment of the present invention;
FIG. 5 is an enlarged partial view of the position Q2 of FIG. 4;
FIG. 6 is a cross-sectional view taken along section line X-X' of FIG. 3;
FIG. 7 is another schematic cross-sectional view taken along section line X-X' of FIG. 3;
FIG. 8 is a schematic diagram of a display device according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of another display device according to an embodiment of the present invention;
FIG. 10 is a diagram illustrating a display device according to another embodiment of the present invention;
FIG. 11 is a diagram illustrating a display device according to another embodiment of the present invention;
FIG. 12 is a diagram of another display device according to an embodiment of the present invention;
fig. 13 is a schematic view of a display device in a second state according to an embodiment of the invention;
FIG. 14 is a schematic view of another display device in a second state according to an embodiment of the present invention;
fig. 15 is a schematic view of another display device according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the 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 noted that in the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in numerous ways, different from those described herein, and various embodiments can be implemented in combination without contradiction. Those skilled in the art can now make similar generalizations without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
Generally, due to the fact that the folding screen can be folded in a bending mode, bending stress or creases appear in a bending area, and the metal wiring in the bending area is broken or display pixels are invalid inevitably, so that the display problem of the display of the folding screen is increased, and the service life of the folding screen is influenced, and the use experience of a user is influenced.
In order to solve the above problem and reduce the failure problem of the folding screen in the bending area, an embodiment of the present invention provides a display panel, including: the substrate comprises a first plane display area, a bent display area and a second plane display area, wherein the first plane display area, the bent display area and the second plane display area are arranged along a first direction;
the curved display area comprises a plurality of mutually isolated display parts which are arranged on the substrate and distributed in an array manner, and a plurality of connecting parts which connect the adjacent display parts, and the connecting parts can be stretched;
the curved display region comprises a plurality of pixel units with a first pixel density, the display part comprises at least one pixel unit, the first planar display region and the second planar display region comprise a plurality of pixel units with a second pixel density, wherein,
when the flexible display panel is in a first state, the first plane display area, the second plane display area and the bent display area are on the same display plane, and the first pixel density is equal to the second pixel density; when the flexible display panel is in a second state, the first plane display area and the second plane display area are not in the same display plane, and the first pixel density is smaller than the second pixel density.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
An embodiment of the present invention provides a display panel, and fig. 1 is a schematic diagram of the display panel provided in the embodiment of the present invention in a first state, as shown in fig. 1, the display panel 100 includes: the display device comprises a substrate base plate 1, a first display area A1, a curved display area AW and a second display area A2, wherein the first display area A1, the curved display area AW and the second display area A2 are arranged along a first direction X; it can be understood that, when the display panel 100 is in the first state, i.e., the flat display state, the first flat display area A1, the second flat display area A2 and the curved display area AW are on the same display plane, and in the first state, the first flat display area A1, the second flat display area A2 and the curved display area AW together present a complete and continuous display screen.
Referring to fig. 2, fig. 2 is a partially enlarged view of a curved display area AW, the curved display area AW includes a plurality of mutually isolated display portions 20 disposed on a substrate base plate 1 in an array, and a plurality of connecting portions 30 connecting adjacent display portions 20, wherein the connecting portions 30 can be stretched; it is understood that the curved display area AW is a stretchable display panel, the pixel units are disposed on the display part 20 to substantially maintain the original shape when an external force such as a stretching external force is applied, and the substrate of the display part 20 is made of a highly elastic material including a flexible resin material such as Polyimide (PI); the deformation of the curved display area AW is mainly concentrated on the connecting portion 30, the connecting portion 30 includes a signal line connecting two adjacent display portions 20, and the material of the signal line includes a conductive material with good ductility, such as a liquid metal material or a nano silver material. In the present embodiment, the preformed shape of the connecting portion 30 is at least one of an S-shaped curved shape, a U-shaped curved shape, and the like.
Referring to fig. 3, fig. 3 is a partially enlarged view of a position Q1 in fig. 1, wherein the curved display area AW includes a plurality of pixel units P having a first pixel density P1, wherein the display portion includes at least one pixel unit P, and the first and second flat display areas include a plurality of pixel units P having a second pixel density P2, wherein when the display panel 100 is in the first state, i.e., in the flat display state, as shown in fig. 3, the first and second flat display areas A1 and A2 and the curved display area AW are on the same display plane, and the second pixel density P2 of the pixel units in the first or second flat display area is equal to the first pixel density P1 of the pixel units in the curved display area AW, so as to ensure that a complete, uniform and continuous display screen can be realized in the flat display state.
With reference to fig. 4, fig. 4 is a schematic diagram of a display panel in a second state according to an embodiment of the present invention, wherein the curved display area AW is configured to include a plurality of pixel units P having a first pixel density P1, the display portion 20 includes at least one pixel unit P, the first planar display area A1 and the second planar display area A2 include a plurality of pixel units having a second pixel density P2, and when the display panel 100 is in the second state, i.e., in the curved display state, as shown in fig. 4, the first planar display area A1 and the second planar display area A2 are not on the same display plane; referring to fig. 5, fig. 5 is a partially enlarged view of a position Q2 in fig. 4, where a first pixel density P1 of the pixel units in the curved display area AW is smaller than a second pixel density P2 of the pixel units in the first planar display area A1 and the second planar display area A2.
It can be understood that, since the curved display area AW has stretchability, when the display panel is bent from the first state to the second state, the curved display area AW can be subjected to a stretching deformation, and the connecting portions in the curved display area AW can be subjected to a stretching deformation, so that the pitch between the pixel units in the curved display area AW is increased, and thus the pixel density of the pixel units in the curved display area AW in the second state is less than that in the first state.
In the embodiment of the invention, the bending display area is provided with the stretchable display panel, the connecting part for connecting the pixel units is stretchable and deformable when the bending display area is bent from a plane display state to a bending display state, so that the pixel density in the bending display area is reduced; on the other hand, the connecting part for connecting the pixel units in the bent display area can be stretched and deformed, so that the risk of breakage of the signal line in a bent state can be greatly reduced, and breakage of the signal line caused by bending stress is reduced, thereby reducing the problem of display failure caused by 'creases' of the bent display area caused by bending.
It should be noted that, in the embodiment of the present application, the display panel can realize large-screen continuous and uniform image display in a planar display state; in the curved display state, the first planar display area A1, the curved display area AW and the second planar display area A2 can independently display pictures, wherein the curved display area AW is a side display area, and the pixel density of the curved display area AW is lower than that of the first planar display area or the second planar display area, so that the curved display area AW can be used as a low-resolution image quality display, including displaying auxiliary information such as electric quantity, signal intensity, date, incoming call or message reminder.
In addition, it is understood that the pixel units in the first planar display area A1, the curved display area AW and the second planar display area A2 include at least one sub-pixel capable of emitting light, and specifically, the sub-pixel includes a light emitting device formed of an organic light emitting diode including an anode, a light emitting layer and a cathode.
Illustratively, as shown in FIG. 6, FIG. 6 is a cross-sectional view of FIG. 3 along section line X-X'; the substrate base plate 1 comprises a first base plate 11 arranged in a first plane display area A1 or a second plane display area A2 and a second base plate 12 arranged in a bent display area AW, wherein the elastic modulus of the first base plate 11 is larger than that of the second base plate 12, so that the flexibility and elasticity of the bent display area during bending can be guaranteed.
Continuing to refer to fig. 6, the display device further includes an array film layer 2 disposed on one side of the substrate 1, a display device layer 3 disposed on one side of the array film layer 2, and an encapsulation layer 4 disposed on one side of the display device layer 3 away from the array film layer 2, specifically referring to fig. 6, in the second planar display area A2, one side of the continuous array film layer 2 is disposed with the continuous display device layer 3, wherein the array film layer 2 is used to form a pixel circuit and a driving circuit to realize driving of the display device layer 3, so as to realize driving light emission of pixel units in the display device layer 3; the display device layer 3 comprises a plurality of pixel units P, and a continuous packaging layer 4 is arranged on one side of the display device layer 3; in the curved display area AW, one side of the second substrate 12 includes a plurality of discontinuous array film layers 2, a display device layer 3 is disposed on each array film layer 2, the display device layer 3 includes at least one pixel unit, and a plurality of encapsulation layers 4 are disposed on one side of each display device layer 3; it is understood that the display part 20 includes the display device layers 3 arranged at intervals, and the display part 20 is independently packaged, so that the water and oxygen invasion is more effectively blocked.
Optionally, referring to fig. 7, fig. 7 is another cross-sectional view taken along a sectional line X-X' in fig. 3; the substrate base plate 1 comprises a second base plate 12 arranged in the curved display area, the second base plate 12 comprises a first substrate 121 and a second substrate 122 which are arranged in a laminated manner along the light-emitting surface direction of the display panel, the first substrate 121 is continuously arranged, and the second substrate 122 is discontinuously arranged; wherein the elastic modulus of the second substrate 122 is greater than the elastic modulus of the first substrate 121.
In the embodiment of the present invention, two layers of substrates with different elastic moduli are disposed on the substrate in the curved display area, wherein the second substrate 122 near one side of the array film layer 2 is disposed as an intermittent, discontinuous film layer, so that a substrate support can be provided for the display portion 20 that is separately disposed, and the elastic modulus of the second substrate 122 is greater than the elastic modulus of the first substrate 121, so that when the curved display area is stretched, the first substrate 121 does not directly generate a tensile stress on the display portion 20, the tensile stress is transferred to and applied to the second substrate 122, and the service life of the pixel unit on the display portion 20 is prolonged through the buffering of the second substrate 122.
It should be emphasized that the various embodiments described above in this application can be implemented in any combination without mutual exclusivity.
Based on the same inventive concept, the embodiment of the invention further provides a display device, wherein the display device comprises the display panel.
Wherein, the related structure of the display panel included in the display device is described in detail with reference to the above embodiments, and is not repeated herein,
optionally, please refer to fig. 8, fig. 8 is a schematic diagram of a display device according to an embodiment of the present invention; the display device 600 includes a display panel 100 and a support structure 300, wherein the support structure 300 is disposed on the back of a light-emitting surface of the display panel 100, the support structure 300 includes a first support 31 supporting a first planar display area A1 and a second support 32 supporting a second planar display area A2, a groove structure 30 is disposed on one side of the first support 31 and the second support 32 close to a curved display area AW, an air bag device 40 is disposed in a cavity formed by the curved display area AW and the groove structure 30, and the air bag device 40 is configured to support the curved display area AW.
It will be appreciated that the airbag assembly 40 is a flexible, highly permeable material having some flexibility, and optionally, the airbag assembly includes a transparent elastomeric material, including a transparent polyurethane elastomer or the like.
Optionally, referring to fig. 9, fig. 9 is a schematic view of another display device according to an embodiment of the present invention, wherein a third support 33 is disposed inside an airbag device 40, and in a direction perpendicular to a plane of a display panel, the third support 33 overlaps with a first support 31 or a second support 32 on which a groove structure 30 is disposed. It can be understood that the first support 31 and the second support 32 support the third support 33 at the portion of the groove structure 30, so as to ensure the support of the third support 33 is fixed, and at the same time, the third support 33 supports the display panel of the curved display area.
Wherein the elastic modulus of the third support 33 is smaller than the elastic modulus of the first support 31 or the second support 32. Therefore, when the bending display area is bent for display, the third supporting member 33 can realize a certain supporting function along with the bending of the bending display area due to the lower elastic modulus and the higher flexibility.
Optionally, referring to fig. 10, fig. 10 is a schematic view of another display device according to an embodiment of the present invention, wherein a camera module 50 is disposed on the groove structure 30, and a camera 501 of the camera module 50 is disposed on a side of the camera module 50 close to the third support 33; optionally, as shown in fig. 11, fig. 11 is a schematic view of another display device according to an embodiment of the present invention, and the image pickup module 50 is disposed on each of the groove structures 30 on the first support 31 and the second support 32, so that the diversification of the use functions of the display device can be realized.
With continued reference to fig. 11, when the display panel 100 is in the first state, i.e. in the planar display state, in the direction perpendicular to the plane of the display panel, the camera 501 overlaps with the first planar display area A1 or the second planar display area A2.
In a conventional display panel, the first and second flat display areas have higher density pixel units due to the need of ensuring normal image display, so that the lighting efficiency of the cameras disposed right below the first and second flat display areas is seriously affected, and thus the display image quality of the camera area is obviously reduced.
To further improve the above problem, an embodiment of the present invention provides a schematic diagram of another display device, as shown in fig. 12, fig. 12 is a schematic diagram of another display device provided by an embodiment of the present invention, wherein at least one of the first planar display area A1 and the second planar display area A2 includes a planar stretchable area A0 on a side close to the curved display area AW, specifically, the first planar display area A1 includes a planar stretchable area A0 on a side close to the curved display area AW, and the second planar display area A2 includes a planar stretchable area A0 on a side close to the curved display area AW;
when the display panel 100 is in the second state, as shown in fig. 13, fig. 13 is a schematic diagram of the display device in the second state according to the embodiment of the present invention, the curved display area AW forms a plurality of pixel units with the first pixel density P1 by bending and stretching, the planar stretchable area A0 forms a plurality of pixel units with the third pixel density P3 by stretching of the curved display area AW, wherein,
the third pixel density P3 is less than the second pixel density P2;
it is understood that when the display panel is in the first state, the first planar display area, the second planar display area and the curved display area have the same pixel density; when the display panel is in a second state, the bent display area AW realizes the increase of the distance between the pixel units due to the stretching, so the bent display area forms a plurality of pixel units with a first pixel density P1 due to the bending stretching; and the plane stretchable region A0 is stretched in a plane by the curved display region AW, so that the distance between the pixel units in the plane stretchable region A0 is increased, and thus the plane stretchable region forms a plurality of pixel units with a third pixel density P3 due to plane stretching, wherein the third pixel density P3 of the plane stretchable region is less than the second pixel density P2, and therefore, the pixel density of the plane stretchable region is lower and the light transmittance is higher relative to the regions of the first and second plane display regions except the plane stretchable region.
With continued reference to fig. 13, the camera 501 overlaps the planar stretchable region A0 in a direction perpendicular to the plane of the display panel.
Therefore, the area overlapped with the camera is the plane stretching area, and the light transmittance of the plane stretching area is improved due to the fact that the pixel density of the plane stretching area is reduced, so that the light acquisition rate of the camera is improved, and the shooting image quality of the camera is improved.
In the embodiment of the invention, the areas of the first and second planar display areas, which are close to one side of the curved display area, are set as the planar stretching areas, and the planar stretching of the planar stretching areas is realized through the curved stretching of the curved display areas, so that the pixel density of the areas is reduced by the planar stretching areas due to the planar stretching effect, and thus, the light transmittance of the planar stretching areas is increased, and the light quantity with higher transmittance is provided for the camera below the areas. Therefore, on one hand, normal and continuous picture display of the first plane display area, the second plane display area and the curved display area in a plane display state is guaranteed, on the other hand, in the curved display state, the problem of bending stress of the curved display area can be solved, and meanwhile, higher light acquisition quantity of the camera lens in the camera mode can be achieved.
Optionally, in another embodiment, as shown in fig. 14, fig. 14 is a schematic view of another display device provided in an embodiment of the present invention in a second state, a slider structure 70 is further disposed on the groove structure 30, the slider structure 70 is disposed on a side of the camera module 50 away from the camera 501, and the slider structure 70 is fixedly connected to the camera module 50;
wherein, through spring leaf fixed connection, perhaps direct fixed connection between slider structure and the module of making a video recording.
When the display panel is in a first state, namely in a plane display state: the airbag device is an elastic airbag device having a volume V1, as shown in fig. 12;
when the display panel is changed from the first state to the second state, that is, when the display panel is bent from the flat display state to the curved display state, the slider structure 70 may push the camera module 50 to move in the direction of the airbag device toward the third support 33, and finally the camera 501 in the camera module 50 moves below the curved display area AW;
when the display panel is in the second state, namely in the final state of bending: the curved display area AW forms a plurality of pixel units with a first pixel density by bending and stretching, and the air bag device is an elastic air bag device with a volume V2, wherein V2 is more than V1; and the camera 501 and the curved display area AW overlap in a direction perpendicular to the plane of the display panel, as shown in fig. 14.
It can be understood that, the curved display area AW is stretchable due to bending, and the volume of the airbag device disposed below the curved display area AW is increased from V1 to V2 due to bending, so that the pressure near the third support member in the airbag device is reduced, and therefore the slider structure in the airbag device may push the camera module to move toward the direction close to the third support member 33 due to uneven pressure, and finally, the camera 501 in the camera module 50 is moved below the curved display area AW; on the other hand, the pixel density in the curved display region is reduced due to the fact that the curved display region is stretchable due to bending, the light transmittance of the curved display region is further increased, and therefore the light transmittance of the camera arranged below the curved display region is increased, and therefore the shooting image quality of the camera is improved.
In the embodiment of the invention, the sliding block structure is arranged on the groove structure, when the display panel is bent from a plane display state to a bent display state, the volume in the air bag device is increased due to bending, and then the sliding block structure pushes the camera to move below the bent display area under the action of internal pressure; meanwhile, the curved display area is stretchable due to bending, and the pixel density on the curved display area is reduced, so that the light acquisition rate of the camera is increased, the shooting image quality of the camera is improved, and the picture display of the first plane display area and the second plane display area is not influenced.
Optionally, the specific structure of the display panel 100 has been described in detail in the above embodiments, and is not described herein again. As shown in fig. 15, fig. 15 is a schematic view of another display device according to an embodiment of the present invention, and the display device shown in fig. 15 is only a schematic illustration, and the display device may be any electronic device with a touch function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments and it is not intended to limit the invention to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (9)
1. A display device is characterized by comprising a display panel and a supporting structure arranged on the back of the display panel;
the display panel includes:
the substrate comprises a first plane display area, a bent display area and a second plane display area, wherein the first plane display area, the bent display area and the second plane display area are arranged along a first direction; the curved display area comprises a plurality of mutually isolated display parts which are arranged on the substrate base plate in an array distribution manner, and a plurality of connecting parts which connect the adjacent display parts, and the connecting parts can be stretched;
the curved display region arrangement comprises a plurality of pixel cells having a first pixel density, the display portion comprises at least one of the pixel cells, the first planar display region, the second planar display region comprises a plurality of pixel cells having a second pixel density, and,
the supporting structure comprises a first supporting piece for supporting the first plane display area and a second supporting piece for supporting the second plane display area, wherein a groove structure is arranged on one side, close to the curved display area, of the first supporting piece and one side, close to the curved display area, of the second supporting piece, an air bag device is arranged in a cavity formed by the curved display area and the groove structure, and the air bag device is used for supporting the curved display area;
a third supporting piece is arranged inside the airbag device, and in the direction perpendicular to the plane of the display panel, the third supporting piece is overlapped with the first supporting piece or the second supporting piece where the groove structure is located; a camera module is arranged on the groove structure, and a camera of the camera module is arranged on one side of the camera module, which is close to the third supporting piece;
the groove structure is also provided with a sliding block structure, the sliding block structure is arranged on one side, away from the camera, of the camera module, and the sliding block structure is fixedly connected with the camera module;
when the display panel is in a first state, the first plane display area, the second plane display area and the curved display area are on the same display plane, and the first pixel density is equal to the second pixel density; the airbag device is an elastic airbag device with a volume V1;
when the display panel is in a second state, the first plane display area and the second plane display area are not in the same display plane, the bent display area forms a plurality of pixel units with the first pixel density through bending and stretching, and the first pixel density is smaller than the second pixel density; the airbag device is an elastic airbag device with a volume V2, wherein V2 is more than V1; in the direction perpendicular to the plane of the display panel, the camera and the curved display area are overlapped;
in the process that the display panel is changed from the first state to the second state, the sliding block structure can push the camera module to move in the direction of approaching the third supporting piece in the airbag device.
2. The display device according to claim 1, comprising:
the substrate base plate comprises a first base plate and a second base plate, wherein the first base plate is arranged in the first plane display area or the second plane display area, the second base plate is arranged in the bent display area, and the elastic modulus of the first base plate is larger than that of the second base plate.
3. The display device according to claim 1, comprising:
the substrate base plate comprises a second base plate arranged in the bent display area, the second base plate comprises a first substrate and a second substrate which are arranged in a laminated mode along the light-emitting surface direction of the display panel, the first substrate is continuously arranged, and the second substrate is discontinuously arranged; wherein,
the elastic modulus of the second substrate is greater than the elastic modulus of the first substrate.
4. The display device according to claim 1,
the elastic modulus of the third support is smaller than the elastic modulus of the first support or the second support.
5. The display device according to claim 1,
in the first state, in the direction perpendicular to the plane of the display panel, the camera is overlapped with the first plane display area or the second plane display area.
6. The display device according to claim 5,
at least one of the first planar display area, the second planar display area comprising a planar stretchable region on a side proximate to the curved display area;
when the display panel is in the second state:
the curved display region forms a plurality of pixel cells having the first pixel density by curved stretching, and the planar stretchable region forms a plurality of pixel cells having a third pixel density by stretching of the curved display region,
the third pixel density is less than the second pixel density;
in a direction perpendicular to a plane of the display panel, the camera and the planar stretchable region overlap.
7. The display device of claim 1, the airbag device comprising a transparent elastomeric material.
8. The display device according to claim 1, wherein the first state is a flat display state, and the second state is a bent display state.
9. The display device according to claim 8, wherein in the second state, the curved display area is usable as a low-resolution image quality display.
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| CN114596784B (en) * | 2022-03-17 | 2024-07-02 | 上海天马微电子有限公司 | Display module and display device |
| CN114927068B (en) * | 2022-06-30 | 2023-11-21 | 合肥维信诺科技有限公司 | Stretchable display panel, display driving method thereof and display device |
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