CN112968039B - Display screen and display device - Google Patents
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- CN112968039B CN112968039B CN202110129838.0A CN202110129838A CN112968039B CN 112968039 B CN112968039 B CN 112968039B CN 202110129838 A CN202110129838 A CN 202110129838A CN 112968039 B CN112968039 B CN 112968039B
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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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
- H10K59/40—OLEDs integrated with touch screens
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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
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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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
- H10K59/123—Connection of the pixel electrodes to the thin film transistors [TFT]
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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
- H10K59/124—Insulating layers formed between TFT elements and OLED elements
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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
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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Abstract
The embodiment of the application provides a display screen and a display device, wherein the display screen comprises a display panel and an upper cover plate positioned on one side of a light-emitting surface of the display panel; the display panel comprises a front display area and a side display area, wherein the front display area comprises a plurality of first sub-pixels, and the side display area comprises a plurality of second sub-pixels; the side display area is positioned outside the front display area, and the normal direction of the light-emitting surface of the side display area is crossed with the normal direction of the light-emitting surface of the front display area; wherein, the elastic modulus of at least partial area of the side display area is smaller than that of the front display area. In the embodiment of the application, the elastic modulus of at least partial region of the side display area of the display panel is small, the process difficulty of bending the display panel to form the side display area can be reduced, and when the upper cover plate is used for pressing the display panel to form the side display area with specific curvature, the side display area with low elastic modulus is easier to form a specific shape and cannot damage the upper cover plate.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of display, in particular to a display screen and a display device.
[ background of the invention ]
With the development of display technology, narrow-bezel display screens are popular among consumers due to their advantages of simplicity, beauty, large display area, and the like. In the field of conventional display technology research, narrow-frame to frameless display has become one of the main research subjects.
Extending the display area to the side of the display screen is a main way to achieve borderless, but the side display area generally needs to have a certain curvature, so how to reduce the difficulty of preparing the display screen with the side display area having a certain curvature, and improving the industrial yield becomes a research hotspot.
[ summary of the invention ]
In view of the above, embodiments of the present application provide a display screen and a display device to solve the above problems.
In a first aspect, an embodiment of the present application provides a display screen, including a display panel and an upper cover plate located on one side of a light exit surface of the display panel; the display panel comprises a front display area and a side display area, wherein the front display area comprises a plurality of first sub-pixels, and the side display area comprises a plurality of second sub-pixels; the side display area is positioned at the outer side of the front display area, and the normal direction of the light-emitting surface of the side display area is crossed with the normal direction of the light-emitting surface of the front display area; wherein, the elastic modulus of at least partial area of the side display area is smaller than that of the front display area.
In one implementation manner of the first aspect, the number of inorganic layers included in at least a partial area of the side display area is less than the number of inorganic layers included in the front display area, and/or the number of metal layers included in at least a partial area of the side display area is less than the number of metal layers included in the front display area.
In one implementation form of the first aspect, the side display area includes at least one corner region, and an elastic modulus of the corner region is smaller than an elastic modulus of the front display area.
In one implementation of the first aspect, the number of inorganic layers included in the vertex region is less than the number of inorganic layers included in the front display region.
In one implementation manner of the first aspect, the display panel includes a touch electrode layer and a touch routing layer, the touch electrode layer includes a plurality of touch electrodes therein, the touch routing layer includes a plurality of touch routing therein, and the touch electrodes are electrically connected to the touch routing; along the thickness direction of the display panel, the touch electrodes and the touch wires are at least partially overlapped with the front display area, and at least one of the touch electrodes and the touch wires is not overlapped with the vertex angle area.
In one implementation manner of the first aspect, the display panel includes a touch insulating layer disposed between the touch electrode layer and the touch routing layer; along the thickness direction of the display panel, the touch insulating layer is at least partially overlapped with the front display area, and the touch insulating layer is not overlapped with the top corner area.
In one implementation manner of the first aspect, the display panel includes a plurality of first pixel circuits and a plurality of second pixel circuits, the first sub-pixels are electrically connected with the first pixel circuits, and the second sub-pixels are electrically connected with the second pixel circuits; the first pixel circuit is disposed in the front display region, and the second pixel circuit electrically connected to the second sub-pixel in the vertex angle region is disposed outside the vertex angle region.
In one implementation of the first aspect, the second pixel circuit electrically connected to the second sub-pixel in the corner region is disposed in the front display area.
In one implementation form of the first aspect, the display panel further includes a non-display area surrounding the front display area; a second pixel circuit electrically connected to the second sub-pixel in the vertex region is disposed in the non-display region.
In one implementation manner of the first aspect, each of the first pixel circuit and the second pixel circuit includes a plurality of transistors, each of the transistors includes an active layer, a gate electrode, a source electrode, and a drain electrode; the display panel comprises a gate insulating layer and an interlayer insulating layer, wherein the gate insulating layer is positioned between the film layer where the active layer is positioned and the film layer where the gate electrode is positioned, and the interlayer insulating layer is positioned between the film layer where the source electrode and the drain electrode are positioned and the film layer where the gate electrode is positioned; along the thickness direction of the display panel, the gate insulating layer and the inter-insulating layer are at least partially overlapped with the front display area, and the gate insulating layer and the inter-insulating layer are not overlapped with the vertex angle area.
In one implementation manner of the first aspect, the side display area includes a first display area and a second display area which are arranged along the first direction and are respectively located at two sides of the front display area, and the side display area includes a third display area and a fourth display area which are arranged along the second direction and are respectively located at two sides of the front display area; wherein the first direction is perpendicular to the second direction; in a vertex angle area, the edge of the first display area is adjacent to and separated from the edge of the third display area; in a vertex angle region, the edge of the second display region is adjacent to and spaced apart from the edge of the third display region.
In one implementation manner of the first aspect, the side display area includes a first display area and a second display area which are arranged along the first direction and are respectively located at two sides of the front display area, and the side display area includes a third display area and a fourth display area which are arranged along the second direction and are respectively located at two sides of the front display area; wherein the first direction is perpendicular to the second direction; in a vertex angle area, the first display area is connected with the third display area; in a vertex region, the second display region is connected to the third display region.
In a first aspect, an embodiment of the present application provides a display device, including a display screen as provided in the first aspect.
In the embodiment of the application, the elastic modulus of at least partial area of the side display area of the display panel is smaller, so that the process difficulty of bending the display panel to form the side display area can be reduced, and the preparation efficiency and the process yield of the display screen and the display device can be improved. In addition, in this application embodiment, when the upper cover plate is used to press the display panel to form the side display area with a specific curvature, the side display area with a lower elastic modulus is easier to form a specific shape and will not damage the upper cover plate.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a display screen provided in an embodiment of the present application;
FIG. 2 is a schematic view of another display screen provided in an embodiment of the present application;
FIG. 3 is a cross-sectional view of the display screen of FIGS. 1 and 2 taken along the direction MN;
fig. 4 is a method for manufacturing a display screen according to an embodiment of the present disclosure;
FIG. 5 is a schematic plan view of the display panel fixed to the drawing film;
FIG. 6 is a schematic diagram of a front side of a top corner region of a display panel according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a back side of a top corner region of a display panel according to an embodiment of the present application;
fig. 8 is a schematic cross-sectional view of a display panel according to an embodiment of the present disclosure;
fig. 9 is a schematic cross-sectional view of another display panel provided in the embodiment of the present application;
fig. 10 is a schematic cross-sectional view of another display panel provided in the embodiment of the present application;
fig. 11 is a schematic cross-sectional view illustrating a further display panel according to an embodiment of the present disclosure;
fig. 12 is a schematic view of a display device according to an embodiment of the present disclosure.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description herein, it is to be understood that the terms "substantially", "approximately", "about", "substantially", and the like, as used in the claims and the examples herein, are intended to be generally accepted as not being precise, within the scope of reasonable process operation or tolerance.
It should be understood that although the terms first, second, etc. may be used to describe the sub-pixels, the light emitting devices, the pixel circuits, the display regions, etc. in the embodiments of the present application, these sub-pixels, light emitting devices, pixel circuits, display regions, etc. should not be limited to these terms. These terms are only used to distinguish the sub-pixels, light emitting devices, pixel circuits, display regions, and the like from one another. For example, the first sub-pixel may also be referred to as a second sub-pixel, and similarly, the second sub-pixel may also be referred to as a first sub-pixel without departing from the scope of the embodiments of the present application.
The applicant provides a solution to the problems of the prior art through intensive research.
The embodiment of the application provides a display screen and a display device.
Fig. 1 is a schematic view of a display screen provided in an embodiment of the present application, fig. 2 is a schematic view of another display screen provided in the embodiment of the present application, and fig. 3 is a cross-sectional view of the display screen shown in fig. 1 and fig. 2 along a direction MN.
As shown in fig. 3, the display screen 001 according to the embodiment of the present application includes a display panel 01 and an upper cover plate 02, where the display panel 01 and the upper cover plate 02 are stacked, the upper cover plate 02 is located on a light emitting surface side of the display panel 01 and covers the display panel 01, the display panel 01 is configured to perform light emitting display, and the upper cover plate 02 is configured to protect the display panel 01.
Referring to fig. 1, fig. 2 and fig. 3, the display panel 01 includes a front display area AA and a side display area BB, and the side display area BB is located outside the front display area AA. As illustrated in fig. 3, the side display area BB may surround the front display area AA. The front display area AA includes a plurality of first sub-pixels, and the side display area BB includes a plurality of second sub-pixels, that is, both the front display area AA and the side display area BB can perform light emitting display.
The front display area AA is a display area of the display panel that realizes a main display function and generally has a light emitting surface facing the upper surface of the display screen 001, and the side display area BB is an area having a certain bending angle with respect to the front display area 10 and generally serves as a side surface of the display panel. That is, as shown in fig. 3, the normal direction X of the light-emitting surface of the side display area BB intersects with the normal direction Y of the light-emitting surface of the front display area AA.
In the present embodiment, the elastic modulus of at least a partial region of the side display area BB is smaller than the elastic modulus of the front display area AA, that is, the rigidity of the side display area BB is smaller than the rigidity of the front display area AA.
Fig. 4 is a manufacturing method of a display screen according to an embodiment of the present application.
As shown in fig. 4, the display panel 01 having the front display area AA and the side display area BB is prepared by first fixing the planar display panel 01 to a drawing film 03, including a silicone jig 05 under the drawing film 03, and fixing the drawing film 03 to a robot 04; then, the manipulator 04 controls the traction film 03 to bend so as to drive the planar display panel 01 to bend primarily towards the direction of the silica gel jig 05; then, the upper cover plate 02 having a specific curved shape is covered on the display panel 01, so that the display panel 02 is further curved to be closely attached to the silicone jig 05 and the upper cover plate 02 to form a desired curved shape.
The elastic modulus of at least part of the side display area BB is set to be small, so that the process difficulty of forming the side display area BB by bending the display panel 01 can be reduced, and the process yield can be improved. In addition, in the embodiment of the present application, the side display regions BB usually have a certain curvature, and when the upper cover plate 02 is used to press the display panel to form the side display regions BB with a specific curvature after the traction film 03 primarily bends the display panel 01, the side display regions BB with a lower elastic modulus are more likely to form a specific shape without damaging the upper cover plate 02.
In an embodiment of the present application, the elastic modulus of at least a partial region of the side display region BB may be set to be smaller in a specific manner by reducing the number of inorganic layers in the at least a partial region of the side display region BB such that the number of inorganic layers included in the at least a partial region of the side display region BB is smaller than the number of inorganic layers included in the front display region AA, and/or by reducing the number of metal layers in the at least a partial region of the side display region BB such that the number of metal layers included in the at least a partial region of the side display region BB is smaller than the number of metal layers included in the front display region AA.
In an embodiment of the present application, as shown in fig. 1 and fig. 2, the side display area BB includes at least one corner area B1, and the elastic modulus of at least a partial area of the side display area BB is smaller than that of the front display area AA, specifically, the elastic modulus of the corner area B1 is smaller than that of the front display area AA.
As shown in fig. 1 and fig. 2, in the embodiment of the present application, the side display area BB includes a first display area BB1 and a second display area BB2 arranged along the first direction X and respectively located at two sides of the front display area AA, and the side display area BB includes a third display area BB3 and a fourth display area BB4 arranged along the second direction Y and respectively located at two sides of the front display area AA, wherein the first direction X is perpendicular to the second direction Y. Any adjacent two of the first display region BB1, the second display region BB2, the third display region BB3, and the fourth display region BB4 are in a non-vertical form in the vertex region B1.
In one implementation of the present embodiment, as shown in fig. 1, in a corner region B1, the first display region BB1 is connected to the third display region BB 3; in a corner region B1, the second display region BB2 is connected to the third display region BB 3. Further, in a corner region B1, the first display region BB1 may be connected to the fourth display region BB 4; in a corner region B1, the second display region BB2 may also be connected to the fourth display region BB 4. That is, the side display regions BB are continuous structures in at least two corner regions B1.
In this embodiment, in order to ensure that the side display regions BB have small wrinkles in the corner regions B1, a plurality of holes may be provided in the side display regions BB located in the corner regions B1. In addition, the wrinkles of the side display regions BB in the corner regions B1 are reduced, and a magnetostrictive or electrostrictive material may be provided on the display panel 01 at least in the corner regions B1, so that the wrinkles are flattened by applying a magnetic field or an electric field when or after the display panel 01 is bent.
In another implementation manner of the present embodiment, as shown in fig. 2, in a corner region B1, the edge of the first display region BB1 is adjacent to and separated from the edge of the third display region BB 3; in a corner region B1, the edge of the second display region BB2 is adjacent to and apart from the edge of the third display region BB 3. Further, in a corner region B1, the edge of the first display region BB1 may be adjacent to and separated from the edge of the fourth display region BB 4; in a corner region B1, the edge of the second display region BB2 is adjacent to and apart from the edge of the fourth display region BB 4. That is, the side display regions BB are discontinuous in at least two corner regions B1.
Fig. 5 is a schematic plan view illustrating a display panel and a traction film being fixed, fig. 6 is a schematic front view illustrating a vertex angle region of the display panel according to an embodiment of the present disclosure, and fig. 7 is a schematic back view illustrating a vertex angle region of the display panel according to an embodiment of the present disclosure.
As shown in fig. 5, the robot 04 fixed to the drawing film 03 is parallel to the edge of the display panel 01, and when the robot 04 controls the drawing film 03 to be bent so that the flat display panel 01 is bent, the curvature of the vertex angle position of the display panel 01 cannot be precisely controlled. As shown in fig. 6 and 7, after the manipulator 04 and the display panel 01 on the control plane of the traction film 03 are bent toward the silicone jig 05, the corner region B1 of the display panel 01 cannot be tightly attached to the chamfer of the silicone jig 05, that is, the corner region B1 of the display panel 01 is warped or even has a sharp corner. If the top corner region B1 has a larger elastic modulus, the warpage of the top corner region B1 of the display panel 01 is more serious; when the upper cover 02 is press-fitted to the display panel 01 to form the corner region B1 having a chamfered shape, the warpage having a large rigidity is liable to damage the upper cover 02 and is difficult to form an ideal shape.
According to the embodiment of the application, the elastic modulus of the vertex angle area B1 of the display panel 01 is set to be smaller, so that on one hand, the warping problem of the vertex angle area B1 can be effectively solved; on the other hand, a desired shape can be formed by the upper cover 02 without causing damage to the upper cover 02.
In one embodiment of the present application, the elastic modulus of the corner region B1 may be set in a smaller specific manner by reducing the number of inorganic layers of the corner region B1 such that the number of inorganic layers of the corner region B1 is smaller than the number of inorganic layers included in the front display area AA, and/or by reducing the number of metal layers of the corner region B1 such that the number of metal layers included in the corner region B1 is smaller than the number of metal layers included in the front display area AA.
Fig. 8 is a schematic cross-sectional view of a display panel provided in an embodiment of the present application, fig. 9 is a schematic cross-sectional view of another display panel provided in the embodiment of the present application, fig. 10 is a schematic cross-sectional view of another display panel provided in the embodiment of the present application, and fig. 11 is a schematic cross-sectional view of another display panel provided in the embodiment of the present application.
As shown in fig. 8-11, the display panel 01 provided in the embodiment of the present disclosure may include a transistor layer 101, a light emitting device layer 102, and a touch layer 103, which are stacked, wherein a planarization layer 104 is included between the transistor layer 101 and the light emitting device layer 102, and an encapsulation layer 105 is included between the light emitting device layer 102 and the touch layer 103.
The light emitting device layer 102 includes a first light emitting device 12A and a plurality of second light emitting devices 12B, wherein the first light emitting device 12A is disposed as a first sub-pixel in the front display area AA, and the second light emitting device 12B is disposed as a second sub-pixel in the side display area BB. The first light emitting device 12A and the second light emitting device 12B may be specifically one of an organic light emitting diode, a micro diode, and the like.
The transistor layer 101 includes a plurality of first pixel circuits 11A and a plurality of second pixel circuits 11B, wherein the first pixel circuits 11A are electrically connected to the first sub-pixels, and the second pixel circuits 11B are electrically connected to the second sub-pixels. Here, the first pixel circuit 11A and the second pixel circuit 11B supply a voltage or a current necessary for light emission to the first light emitting device 12A and the second light emitting device 12B, respectively.
Each of the first pixel circuit 11A and the second pixel circuit 11B includes a plurality of transistors 11, and each of the transistors 11 includes an active layer 111, a gate electrode 112, a source electrode 113, and a drain electrode 114. The display panel 01 includes a gate insulating layer 115 and an inter-insulating layer 116, the gate insulating layer 115 is located between the active layer 111 and the gate electrode 112, and the inter-insulating layer 116 is located between the source electrode 113 and the drain electrode 114 and the gate electrode 112. In addition, the first pixel circuit 11A and the second pixel circuit 11B may further include a capacitor, one electrode plate of the capacitor may be disposed on the same layer as the film layer where the gate electrode 112 is located, and the other electrode plate 11' of the capacitor may be located between the film layer where the source electrode 113 and the drain electrode 114 are located and the film layer where the gate electrode 112 is located.
The touch layer 103 includes a touch electrode layer and a touch routing layer, and the touch layer 103 can perform touch action recognition. The touch electrode layer includes a plurality of touch electrodes 131, the touch wiring layer includes a plurality of touch wires 132, the touch electrodes 131 are electrically connected to the touch wires 132, the touch electrodes 131 are used for sensing touch actions, and the touch wires 132 are used for transmitting touch related signals.
In addition, as shown in fig. 8-10, the touch electrode layer 13A and the touch wiring layer 13B may be disposed in different layers, and a touch insulating layer 133 is further included between the touch electrode layer 13A and the touch wiring layer 13B.
In an implementation manner of this embodiment, along the thickness direction of the display panel 01, the touch electrodes 131 and the touch traces 132 are at least partially overlapped with the front display area AA, and at least one of the touch electrodes 131 and the touch traces 132 is not overlapped with the corner area B1.
A specific technical solution corresponding to this implementation is that, as shown in fig. 8, along the thickness direction of the display panel 01, the touch electrodes 131 and the touch traces 132 are not overlapped with the vertex angle region B1, that is, the vertex angle region B1 does not need to have a touch recognition function. In the present technical solution, in order to ensure that the display panel has a flat light-emitting surface to set the polarizer and the light-emitting brightness uniformity of the light-emitting surface of the display panel 01, the vertex angle region B1 is filled with the light curing adhesive 106, and the light curing adhesive 106 is disposed above the encapsulation layer 105 and below the polarizer.
Further, as shown in fig. 8, in the thickness direction of the display panel 01, the touch insulating layer 133 at least partially overlaps the front display area AA, but does not overlap the corner area B1.
Another specific technical solution corresponding to this implementation manner is that, as shown in fig. 9, along the thickness direction of the display panel 01, the touch electrode 131 overlaps with the top corner region B1, but the touch trace 132 does not overlap with the top corner region B1. The touch electrode 131 may be a transparent conductive electrode such as indium tin oxide, or may be a metal grid electrode, which has good bending performance. At this time, the touch trace 132 electrically connected to the touch electrode 131 overlapped with the corner region B1 may be disposed in the front display area AA, or may be disposed in the non-display area. In this technical solution, the vertex angle region B1 of the display panel 01 also has a touch action recognition function, and is easy to bend.
In one implementation of the present embodiment, the first pixel circuit 11A is disposed in the front display area, and the second pixel circuit 11B electrically connected to the second sub-pixel in the corner region B1 is disposed outside the corner region B1. That is, although the second light emitting device 12B as a second sub-pixel is provided in the top corner region B1 for light emission display, the second pixel circuit 11B that supplies a light emission signal to the second light emitting device 12B is not provided in the top corner region B1 to reduce the rigidity of the top corner region B1.
A specific technical solution corresponding to this implementation is that the display panel further includes a non-display area, and the non-display area surrounds the front display area, for example, the non-display area is located between the front display area AA and the side display area BB, or the non-display area is located on a side of the side display area BB away from the front display area AA. The second pixel circuit 11B electrically connected to the second sub-pixel in the corner region B1 is disposed in the non-display area.
Another specific solution corresponding to this implementation is that, as shown in fig. 10, a second pixel circuit 11B electrically connected to a second sub-pixel in the corner region B1 is disposed in the front display area AA.
In this implementation, correspondingly, as shown in fig. 10, in the thickness direction of the display panel 01, both the gate insulating layer 115 and the inter-insulating layer 116 at least partially overlap the front display area AA, and both the gate insulating layer 115 and the inter-insulating layer 116 do not overlap the corner region B1.
Further, as shown in fig. 10, when the second pixel circuit 11B and/or the gate electrode layer 115 and the interlayer insulating layer 116 are not provided in the corner region B1, the corner region B1 may be filled with an organic layer.
In an implementation manner of the present embodiment, as shown in fig. 11, along the thickness direction of the display panel 01, the touch electrodes 131 and the touch traces 132 are at least partially overlapped with the front display area AA, and at least one of the touch electrodes 131 and the touch traces 132 is not overlapped with the corner region B1; and the first pixel circuit 11A is disposed in the front display area and the second pixel circuit 11B electrically connected to the second sub-pixel in the corner region B1 is disposed outside the corner region B1.
Fig. 12 is a schematic view of a display device according to an embodiment of the present disclosure.
As shown in fig. 12, the display device provided in the embodiment of the present application may be a mobile phone, and in addition, the display device provided in the embodiment of the present application may also be a display device such as a computer or a television. The display device provided by the embodiment of the application comprises the display screen 001 provided by any one of the embodiments. Further, the display device may further include an encapsulating case 002 or the like.
According to the display device, the elastic modulus of at least part of the area of the side display area BB of the display panel is set to be small, the process difficulty of bending the display panel 01 to form the side display area BB can be reduced, and the preparation efficiency and the process yield of the display device can be improved. In addition, in the embodiment of the present application, when the upper cover plate 02 is used to press-fit the display panel 01 to form the side display regions BB with specific curvature, the side display regions BB with lower elastic modulus are more likely to form a specific shape without damaging the upper cover plate 02.
The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (13)
1. A display screen is characterized by comprising a display panel and an upper cover plate, wherein the upper cover plate is positioned on one side of a light emergent surface of the display panel; the display panel includes:
the display device comprises a front display area, a back display area and a display area, wherein the front display area comprises a plurality of first sub-pixels;
the side display area is positioned at the outer side of the front display area and comprises a plurality of second sub-pixels;
the normal direction of the light-emitting surface of the side display area is crossed with the normal direction of the light-emitting surface of the front display area, and the elastic modulus of at least partial area of the side display area is smaller than that of the front display area;
the number of metal layers included in at least a partial region of the side display region is less than the number of metal layers included in the front display region.
2. A display screen in accordance with claim 1, wherein at least a portion of the side display area comprises a lesser number of inorganic layers than the front display area.
3. The display screen of claim 1, wherein the side display areas comprise at least one corner region, and wherein the corner region has a lower modulus of elasticity than the front display area.
4. A display screen in accordance with claim 3, wherein the number of inorganic layers included in the vertex angle area is less than the number of inorganic layers included in the front display area.
5. The display screen according to claim 3, wherein the display panel comprises a touch electrode layer and a touch routing layer, the touch electrode layer comprises a plurality of touch electrodes therein, the touch routing layer comprises a plurality of touch routing therein, and the touch electrodes are electrically connected with the touch routing;
along the thickness direction of the display panel, the touch electrode and the touch routing are at least partially overlapped with the front display area, and at least one of the touch electrode and the touch routing is not overlapped with the vertex angle area.
6. The display screen of claim 5, wherein the display panel comprises a touch insulating layer disposed between the touch electrode layer and the touch routing layer;
along the thickness direction of the display panel, the touch insulating layer is at least partially overlapped with the front display area, and the touch insulating layer is not overlapped with the top corner area.
7. The display panel according to claim 3, wherein the display panel includes a plurality of first pixel circuits and a plurality of second pixel circuits, the first sub-pixels are electrically connected to the first pixel circuits, and the second sub-pixels are electrically connected to the second pixel circuits;
the first pixel circuit is arranged in the front display area, and the second pixel circuit electrically connected with the second sub-pixel in the vertex angle area is arranged outside the vertex angle area.
8. The display panel of claim 7, wherein the second pixel circuit electrically connected to the second sub-pixel in the vertex region is disposed in the front display area.
9. The display screen of claim 7, wherein the display panel further comprises a non-display area surrounding the front display area;
the second pixel circuit electrically connected to the second sub-pixel in the vertex region is disposed in the non-display region.
10. The display panel according to claim 7, wherein each of the first pixel circuit and the second pixel circuit comprises a plurality of transistors, each of the transistors comprising an active layer, a gate electrode, a source electrode, and a drain electrode;
the display panel comprises a gate insulating layer and an inter-insulating layer, the gate insulating layer is positioned between the film layer where the active layer is positioned and the film layer where the gate electrode is positioned, and the inter-insulating layer is positioned between the film layer where the source electrode and the drain electrode are positioned and the film layer where the gate electrode is positioned;
along the thickness direction of the display panel, the gate insulating layer and the inter-insulating layer are at least partially overlapped with the front display area, and the gate insulating layer and the inter-insulating layer are not overlapped with the vertex angle area.
11. The display screen of claim 3, wherein the side display areas comprise a first display area and a second display area arranged along a first direction and respectively located on two sides of the front display area, and the side display areas comprise a third display area and a fourth display area arranged along a second direction and respectively located on two sides of the front display area; wherein the first direction is perpendicular to the second direction;
in one of the vertex regions, an edge of the first display region is adjacent to and separated from an edge of the third display region; in one of the vertex regions, an edge of the second display region is adjacent to and apart from an edge of the third display region.
12. The display screen of claim 3, wherein the side display areas comprise a first display area and a second display area arranged along a first direction and respectively located on two sides of the front display area, and the side display areas comprise a third display area and a fourth display area arranged along a second direction and respectively located on two sides of the front display area; wherein the first direction is perpendicular to the second direction;
in one of the vertex regions, the first display region is connected with the third display region; in one of the vertex regions, the second display region is connected with the third display region.
13. A display device, characterized in that it comprises a display screen according to any one of claims 1-12.
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| CN113539097B (en) * | 2021-07-15 | 2023-08-11 | Oppo广东移动通信有限公司 | Under-screen supporting structure, quadric screen and mobile terminal |
| CN114170900B (en) * | 2021-11-30 | 2023-11-17 | 京东方科技集团股份有限公司 | Flexible display panel and display device |
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