CN110828535B - Array substrate, display panel and display device - Google Patents

Array substrate, display panel and display device Download PDF

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Publication number
CN110828535B
CN110828535B CN201911323376.5A CN201911323376A CN110828535B CN 110828535 B CN110828535 B CN 110828535B CN 201911323376 A CN201911323376 A CN 201911323376A CN 110828535 B CN110828535 B CN 110828535B
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display area
main display
substrate
light
pixel
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CN110828535A (en
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罗雅琴
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Wuhan Tianma Microelectronics Co Ltd
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Wuhan Tianma Microelectronics Co Ltd
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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
    • 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
    • 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
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H10K59/1216—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being capacitors

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention provides an array substrate, a display panel and a display device, wherein in a curved display area, one side of a light-emitting structure of a first red pixel close to the main display area is lower than one side far away from the main display area, so that the light-emitting structure of the first red pixel has a first inclination angle relative to the surface of a substrate, and/or one side of the light-emitting structure of a first green pixel close to the main display area is higher than one side far away from the main display area, so that the light-emitting structure of the first green pixel has a second inclination angle relative to the surface of the substrate, and/or one side of the light-emitting structure of the first blue pixel close to the main display area is higher than one side far away from the main display area, so that the light-emitting structure of the first blue pixel has a third inclination angle relative to the surface of the substrate, and therefore red light, red light and white light emitted from one side close to the main display area in the curved display area can be adjusted through the first inclination angle, the second inclination angle and/or the third inclination angle, The proportion of the green light to the blue light solves the problem that the color of the side edge of the curved surface display area is greenish.

Description

Array substrate, display panel and display device
Technical Field
The invention relates to the technical field of display devices, in particular to an array substrate, a display panel and a display device.
Background
The curved surface display device's display panel both sides are for being the curved surface shape of certain radian, and for traditional planar display device, curved surface display device is bigger at the visual angle of screen left and right sides, can provide better visual sensation for the user. However, when the curved surface display device is viewed from above, the curved surface side of the curved surface display device may be seen to have a display screen color that is bluish.
Disclosure of Invention
In view of the above, the present invention provides an array substrate, a display panel and a display device to solve the problem of a dark-colored display screen on a side of a curved surface in a curved surface display device.
In order to achieve the purpose, the invention provides the following technical scheme:
an array substrate comprises a display area, wherein the display area comprises a main display area and a curved surface display area positioned on the periphery of the main display area;
the curved display area comprises a plurality of first red pixels for emitting red light, a plurality of first green pixels for emitting green light and a plurality of first blue pixels for emitting blue light;
each pixel comprises a circuit structure positioned on the surface of the substrate of the array substrate and a light-emitting structure positioned on the surface of the circuit structure, wherein the circuit structure comprises a plurality of transistors and at least one capacitor, and the light-emitting structure comprises a cathode, an anode and an organic light-emitting layer positioned between the cathode and the anode;
one side of the light-emitting structure of the first red pixel close to the main display area is lower than one side far away from the main display area, so that the light-emitting structure of the first red pixel has a first inclination angle relative to the surface of the substrate;
and/or one side of the light-emitting structure of the first green pixel close to the main display area is higher than one side far away from the main display area, so that the light-emitting structure of the first green pixel has a second inclination angle relative to the surface of the substrate;
and/or one side of the light-emitting structure of the first blue pixel close to the main display area is higher than one side far away from the main display area, so that the light-emitting structure of the first blue pixel has a third inclination angle relative to the surface of the substrate.
Optionally, the circuit structure includes a driving transistor and a storage capacitor electrically connected to the driving transistor, and the anode is electrically connected to the drain of the driving transistor through a first via;
the anode of the first red pixel comprises a first side edge and a second side edge which are opposite, the first side edge is positioned on one side far away from the main display area, the second side edge is positioned on one side close to the main display area, and in the direction perpendicular to the plane of the substrate, the projection of the first side edge is overlapped with the projection of at least one electrode plate of the storage capacitor of the first red pixel, so that the first side edge is inclined towards the second side edge, and the light-emitting structure of the first red pixel has a first inclination angle relative to the surface of the substrate;
and/or the anode of the first green pixel comprises a third side and a fourth side which are opposite, the third side is positioned at one side close to the main display area, the fourth side is positioned at one side far away from the main display area, and in the direction perpendicular to the plane of the substrate, the projection of the third side is overlapped with the projection of at least one electrode plate of the storage capacitor of the first green pixel, so that the third side is inclined towards the fourth side, and the light-emitting structure of the first green pixel has a second inclination angle relative to the surface of the substrate;
and/or the anode of the first blue pixel comprises a fifth side edge and a sixth side edge which are opposite, the fifth side edge is positioned at one side close to the main display area, the sixth side edge is positioned at one side far away from the main display area, and in the direction perpendicular to the plane of the substrate, the projection of the fifth side edge is overlapped with the projection of at least one electrode plate of the storage capacitor of the first blue pixel, so that the fifth side edge inclines towards the sixth side edge, and the light-emitting structure of the first blue pixel has a third inclination angle relative to the surface of the substrate.
Optionally, the anode of the first red pixel includes a first side and a second side that are opposite, the first side is located on a side away from the main display area, the second side is located on a side close to the main display area, and a partial region between the anode of the first red pixel and the substrate, which is close to the first side and away from the second side, has a first elevated structure, so that the first side is inclined toward the second side, and the light emitting structure of the first red pixel has a first inclination angle with respect to the surface of the substrate;
and/or the anode of the first green pixel comprises a third side and a fourth side which are opposite, the third side is positioned at one side close to the main display area, the fourth side is positioned at one side far away from the main display area, and a partial area between the anode of the first green pixel and the substrate, which is close to the third side and far away from the fourth side, is provided with a second heightening structure, so that the third side is inclined towards the fourth side, and the light emitting structure of the first green pixel has a second inclination angle relative to the surface of the substrate;
and/or the anode of the first blue pixel comprises a fifth side edge and a sixth side edge which are opposite, the fifth side edge is positioned on one side close to the main display area, the sixth side edge is positioned on one side far away from the main display area, and a partial area between the anode of the first blue pixel and the substrate, which is close to the fifth side edge and far away from the sixth side edge, is provided with a third elevated structure, so that the fifth side edge is inclined towards the sixth side edge, and the light emitting structure of the first blue pixel has a third inclination angle relative to the surface of the substrate.
Optionally, the elevated structure is formed by one or more thin film layers in the circuit structure.
Optionally, the thin film layers in the circuit structure include a buffer layer, a semiconductor layer, a gate insulating layer, a gate layer, an interlayer insulating layer, a source and drain layer, a storage capacitor layer, and a planarization layer.
Optionally, the elevated structure is formed by one or more metal layers in the circuit structure.
Optionally, the metal layer includes a gate layer, source and drain layers, and a storage capacitor layer.
Optionally, a first inclined groove is formed between the anode of the first red pixel and the substrate, and the light emitting structure of the first red pixel is arranged in the first inclined groove, so that the light emitting structure of the first red pixel has a first inclined angle relative to the surface of the substrate;
and/or a second inclined groove is arranged between the anode of the first green pixel and the substrate, and the light-emitting structure of the first green pixel is arranged in the second inclined groove, so that the light-emitting structure of the first green pixel has a second inclined angle relative to the surface of the substrate;
and/or a third inclined groove is arranged between the anode of the first blue pixel and the substrate, and the light-emitting structure of the first blue pixel is arranged in the third inclined groove, so that the light-emitting structure of the first blue pixel has a third inclined angle relative to the surface of the substrate.
Optionally, the inclined groove is located on a planarization layer between the substrate and an anode of the light emitting structure.
Optionally, in the curved display area, the angle of the first inclination angle gradually increases from a side close to the main display area to a side far away from the main display area;
and/or in the curved surface display area, the angle of the second inclination angle is gradually increased from one side close to the main display area to one side far away from the main display area;
and/or in the curved surface display area, the angle of the third inclination angle is gradually increased from one side close to the main display area to one side far away from the main display area.
A display panel comprises the array substrate as described in any one of the above.
A display device comprising a display panel as described above.
Compared with the prior art, the technical scheme provided by the invention has the following advantages:
according to the array substrate, the display panel and the display device provided by the invention, when one side of the light-emitting structure of the first red pixel in the curved surface display area, which is close to the main display area, is lower than one side of the light-emitting structure of the first red pixel, which is far away from the main display area, the light-emitting structure of the first red pixel can have a first inclination angle relative to the surface of the substrate, so that more red light emitted by the first red pixel can be emitted to one side close to the main display area, and the proportion of the red light in the white light emitted by one side close to the main display area in the curved surface display area can be increased;
when one side of the light-emitting structure of the first green pixel in the curved surface display area, which is close to the main display area, is higher than one side of the light-emitting structure of the first green pixel, which is far away from the main display area, the light-emitting structure of the first green pixel can have a second inclination angle relative to the surface of the substrate, so that green light emitted by the first green pixel can be emitted to one side of the curved surface display area, which is far away from the main display area, more green light can be emitted, and the proportion of the green light in the white light emitted from one side of the curved surface display area, which is close to the main display area, can be reduced;
when one side of the light-emitting structure of the first blue pixel in the curved surface display area, which is close to the main display area, is higher than one side of the light-emitting structure of the first blue pixel, which is far away from the main display area, the light-emitting structure of the first blue pixel can be enabled to have a third inclination angle relative to the surface of the substrate, so that more blue light emitted by the first blue pixel can be emitted to one side of the curved surface display area, which is far away from the main display area, and the proportion of blue light in white light emitted by one side of the curved surface display area, which is close to the main display area, can be reduced; and furthermore, the problem that the color of a display picture on the side of the curved surface display area is bluish can be solved by adjusting the proportion of at least one of red light, green light and blue light in the white light emitted from one side of the curved surface display area close to the main display area.
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 embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a front view of a conventional display device;
fig. 2 is a schematic top view of an array substrate according to an embodiment of the present invention;
FIG. 3 is a side view of the array substrate shown in FIG. 2;
fig. 4 is a schematic cross-sectional view of an array substrate along an AA' cutting line according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of another array substrate along an AA' scribe line according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of another array substrate along an AA' cutting line according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of another array substrate along an AA' cutting line according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of another array substrate along an AA' cutting line according to an embodiment of the present invention;
fig. 9 is a schematic cross-sectional view of another array substrate according to an embodiment of the invention;
fig. 10 is a schematic cross-sectional view illustrating another array substrate according to an embodiment of the invention;
fig. 11 is a schematic cross-sectional view illustrating a display panel according to an embodiment of the invention;
fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
As described in the background art, when the curved display device is viewed from above, as shown in fig. 1, fig. 1 is a front view of a conventional display device, it is found that the curved side edge S0 of the curved display device has a cyan display screen color, and such cyan display screen edge appears as a large viewing angle color shift.
Accordingly, the present invention provides an array substrate, a display panel and a display device to overcome the above problems in the prior art, wherein the array substrate includes:
the display area comprises a main display area and a curved surface display area positioned on the periphery of the main display area;
the curved display area comprises a plurality of first red pixels for emitting red light, a plurality of first green pixels for emitting green light and a plurality of first blue pixels for emitting blue light;
each pixel comprises a circuit structure positioned on the surface of the substrate of the array substrate and a light-emitting structure positioned on the surface of the circuit structure, wherein the circuit structure comprises a plurality of transistors and at least one capacitor, and the light-emitting structure comprises a cathode, an anode and an organic light-emitting layer positioned between the cathode and the anode;
one side of the light-emitting structure of the first red pixel close to the main display area is lower than one side far away from the main display area, so that the light-emitting structure of the first red pixel has a first inclination angle relative to the surface of the substrate;
and/or one side of the light-emitting structure of the first green pixel close to the main display area is higher than one side far away from the main display area, so that the light-emitting structure of the first green pixel has a second inclination angle relative to the surface of the substrate;
and/or one side of the light-emitting structure of the first blue pixel close to the main display area is higher than one side far away from the main display area, so that the light-emitting structure of the first blue pixel has a third inclination angle relative to the surface of the substrate.
According to the array substrate, the display panel and the display device provided by the invention, when one side of the light-emitting structure of the first red pixel in the curved surface display area, which is close to the main display area, is lower than one side of the light-emitting structure of the first red pixel, which is far away from the main display area, the light-emitting structure of the first red pixel can have a first inclination angle relative to the surface of the substrate, so that more red light emitted by the first red pixel can be emitted to one side close to the main display area, and the proportion of the red light in the white light emitted from one side close to the main display area in the curved surface display area can be increased;
when one side of the light-emitting structure of the first green pixel in the curved surface display area, which is close to the main display area, is higher than one side of the light-emitting structure of the first green pixel, which is far away from the main display area, the light-emitting structure of the first green pixel can have a second inclination angle relative to the surface of the substrate, so that green light emitted by the first green pixel can be emitted to one side of the curved surface display area, which is far away from the main display area, more green light can be emitted, and the proportion of the green light in the white light emitted from one side of the curved surface display area, which is close to the main display area, can be reduced;
when one side of the light-emitting structure of the first blue pixel in the curved surface display area, which is close to the main display area, is higher than one side of the light-emitting structure of the first blue pixel, which is far away from the main display area, the light-emitting structure of the first blue pixel can be enabled to have a third inclination angle relative to the surface of the substrate, so that more blue light emitted by the first blue pixel can be emitted to one side of the curved surface display area, which is far away from the main display area, and the proportion of blue light in white light emitted from one side of the curved surface display area, which is close to the main display area, can be reduced; and furthermore, the problem that the color of a display picture on the side of the curved surface display area is bluish can be solved by adjusting the proportion of at least one of red light, green light and blue light in the white light emitted from one side of the curved surface display area close to the main display area.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that the above is the core idea of the present invention, and the above objects, features and advantages of the present invention can be more clearly understood. 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 invention.
An embodiment of the present invention provides an array substrate, as shown in fig. 2 and 3, fig. 2 is a schematic top view of the array substrate provided by the embodiment of the present invention, and fig. 3 is a side view of the array substrate shown in fig. 2, the array substrate includes a display area and a non-display area located at a periphery of the display area, wherein the non-display area may be made very narrow, or in other embodiments, there is no non-display area at some side edges, so as to further increase the area of the display area of the array substrate. The display area includes a main display area S1 and a curved display area S2 located at the periphery of the main display area S1. In the embodiment of the present invention, only the curved display area S2 is located on two sides of the main display area S1 for illustration, but not limited thereto, in other embodiments, the curved display area S2 may also be located around the main display area S1.
As shown in fig. 2, the curved display region S2 includes a plurality of first red pixels R1 emitting red light, a plurality of first green pixels G1 emitting green light, and a plurality of first blue pixels B1 emitting blue light, and the main display region S1 includes a plurality of second red pixels R2 emitting red light, a plurality of second green pixels G2 emitting green light, and a plurality of second blue pixels B2 emitting blue light. Similarly, in the embodiment of the present invention, only the array substrate includes pixels of three colors, red, green and blue, and in other embodiments, the array substrate may further include pixels of white, and the like, which are not described herein again.
In the embodiment of the present invention, as shown in fig. 4 to 8, fig. 4 is a schematic cross-sectional structure of an array substrate along an AA ' cutting line according to an embodiment of the present invention, fig. 5 is a schematic cross-sectional structure of another array substrate along an AA ' cutting line according to an embodiment of the present invention, fig. 6 is a schematic cross-sectional structure of another array substrate along an AA ' cutting line according to an embodiment of the present invention, fig. 7 is a schematic cross-sectional structure of another array substrate along an AA ' cutting line according to an embodiment of the present invention, fig. 8 is a schematic cross-sectional structure of another array substrate along an AA ' cutting line according to an embodiment of the present invention, wherein each pixel, such as R1, G1, and B1, includes a circuit structure on a surface of a substrate 10 of the array substrate and a light emitting structure on a surface of the circuit structure, wherein the circuit structure includes a plurality of transistors and at least one capacitor, and the drawings of the present invention only illustrate a driving transistor T and a storage capacitor C connected to the driving transistor T as an example Illustratively, the light emitting structure includes a cathode 11, an anode 12, and an organic light emitting layer 13 positioned between the cathode 11 and the anode 12. Wherein the circuit structure is used to charge the light emitting structure to drive the organic light emitting layer 13 to emit light.
In the embodiment of the present invention, the side of the light emitting structure of the first red pixel R1 close to the main display region S1 is lower than the side far from the main display region S1 so that the light emitting structure of the first red pixel R1 has a first inclination angle with respect to the surface of the substrate 10, and/or the side of the light emitting structure of the first green pixel G1 close to the main display region S1 is higher than the side far from the main display region S1 so that the light emitting structure of the first green pixel G1 has a second inclination angle with respect to the surface of the substrate 10, and/or the side of the light emitting structure of the first blue pixel B1 close to the main display region S1 is higher than the side far from the main display region S1 so that the light emitting structure of the first blue pixel B1 has a third inclination angle with respect to the surface of the substrate 10.
That is, in one embodiment of the present invention, as shown in fig. 4, only the light emitting structure of the first red pixel R1 has the first inclination angle θ 1 with respect to the surface of the substrate 10, or, in another embodiment of the present invention, as shown in fig. 5, only the light emitting structure of the first green pixel G1 has the second inclination angle θ 2 with respect to the surface of the substrate 10, or, in another embodiment of the present invention, as shown in fig. 6, only the light emitting structure of the first blue pixel B1 has the third inclination angle θ 3 with respect to the surface of the substrate 10, or, in another embodiment of the present invention, the light emitting structure of the first red pixel R1 has the first inclination angle θ 1 with respect to the surface of the substrate 10 and the light emitting structure of the first green pixel G1 has the second inclination angle θ 2 with respect to the surface of the substrate 10, or, in another embodiment of the present invention, the light emitting structure of the first red pixel R1 has the first inclination angle θ 1 with respect to the surface of the substrate 10, the light emitting structure of the first green pixel G1 has a second inclination angle θ 2 with respect to the surface of the substrate 10, and the light emitting structure of the first blue pixel B1 has a third inclination angle θ 3 with respect to the surface of the substrate 10, and so on, which are not described in detail herein.
When the side of the light emitting structure of the first red pixel R1 in the curved surface display area S2 close to the main display area S1 is lower than the side far from the main display area S1, the light emitting structure of the first red pixel R1 may have the first inclination angle θ 1 with respect to the surface of the substrate 10, so that the red light emitted by the first red pixel R1 may be emitted more toward the side close to the main display area S1, and the proportion of the red light in the white light emitted from the side close to the main display area S1 in the curved surface display area S2 may be increased;
when the side of the light emitting structure of the first green pixel G1 in the curved surface display area S2 close to the main display area S1 is higher than the side far from the main display area S1, the light emitting structure of the first green pixel G1 may have the second inclination angle θ 2 with respect to the surface of the substrate 10, so that the green light emitted by the first green pixel G1 may be emitted more to the side far from the main display area S1, and the proportion of the green light in the white light emitted from the side close to the main display area S1 in the curved surface display area S2 may be reduced;
when the side of the light emitting structure of the first blue pixel B1 in the curved surface display region S2 close to the main display region S1 is higher than the side far away from the main display region S1, the light emitting structure of the first blue pixel B1 may have a third inclination angle θ 3 with respect to the surface of the substrate 10, so that more blue light emitted by the first blue pixel B1 may be emitted to the side far away from the main display region S1, and the proportion of blue light in the white light emitted from the side close to the main display region S1 in the curved surface display region S2 may be reduced;
furthermore, the problem that the color of the display picture on the side where the curved surface display area S2 is located is bluish can be solved by adjusting the proportion of at least one of red light, green light and blue light in the white light emitted from the side close to the main display area S1 in the curved surface display area S2.
It should be noted that the angle values of the first tilt angle θ 1, the second tilt angle θ 2, and the third tilt angle θ 3 may be set according to actual needs, and if the proportion of red light in the white light is increased more, the larger the angle value of the first tilt angle θ 1 is set, the more the proportion of green light in the white light is reduced, the larger the angle value of the second tilt angle θ 2 is set, the more the proportion of blue light in the white light is reduced, and the larger the angle value of the third tilt angle θ 3 is set.
In the embodiment of the present invention, the circuit structure includes a driving transistor T and a storage capacitor C electrically connected to the driving transistor T, and the anode 11 is electrically connected to the drain of the driving transistor T through a first via. Of course, the circuit structure in the embodiment of the present invention may further include other transistors and capacitors, which are not described herein again.
Since the height of the driving transistor T is different from the height of the storage capacitor C, and in the conventional design, the height of the storage capacitor C far from the upper surface of the substrate 10 is higher than the height of the driving transistor T far from the upper surface of the substrate 10 relative to the substrate 10, based on this, in the embodiment of the present invention, when this characteristic is applied to the curved display region S2, the tilt angles of the first red pixel R1, the first green pixel G1, and the first blue pixel B1 can be realized without newly adding a film layer or the like by only adjusting the position of the anode 12 or the storage capacitor C, and the cost is low.
Specifically, the side of the first red pixel R1 remote from the main display region S1 is disposed at the top of the storage capacitor C, and the side of the first red pixel R1 close to the main display region S1 is disposed at the top of the driving transistor T; a side of the first green pixel G1 close to the main display region S1 is disposed at the top of the storage capacitor C, and a side of the first green pixel G1 away from the main display region S1 is disposed at the top of the driving transistor T; a side of the first blue pixel B1 close to the main display region S1 is disposed at the top of the storage capacitor C, and a side of the first blue pixel B1 far from the main display region S1 is disposed at the top of the driving transistor T.
That is to say, in the embodiment of the invention, as shown in fig. 4, the anode 12 of the first red pixel R1 includes a first side C1 and a second side C2 which are opposite to each other, the first side C1 is located at a side far away from the main display area S1, the second side C2 is located at a side close to the main display area S1, and in a direction perpendicular to the plane of the substrate 10, a projection of the first side C1 overlaps a projection of at least one electrode plate of the storage capacitor C of the first red pixel R1, so that the first side C1 is inclined toward the second side C2, even if the first side C1 is higher than the second side C2, so that the light emitting structure of the first red pixel R1 has a first inclination angle θ 1 relative to the surface of the substrate 10;
and/or, as shown in fig. 5, the anode 12 of the first green pixel G1 includes a third side C3 and a fourth side C4 opposite to each other, the third side C3 is located at a side close to the main display area S1, the fourth side C4 is located at a side far from the main display area S1, and a projection of the third side C3 overlaps a projection of at least one electrode plate of the storage capacitor C of the first green pixel G1 in a direction perpendicular to a plane of the substrate 10, so that the third side C3 is inclined toward the fourth side C4 even if the third side C3 is higher than the fourth side C4, so that a light emitting structure of the first green pixel G1 has a second inclination angle θ 2 relative to the surface of the substrate 10;
and/or, as shown in fig. 6, the anode 12 of the first blue pixel B1 includes a fifth side C5 and a sixth side C6 opposite to each other, the fifth side C5 is located at a side close to the main display area S1, the sixth side C6 is located at a side far from the main display area S1, and a projection of the fifth side C5 overlaps a projection of at least one electrode plate of the storage capacitor C of the first blue pixel B1 in a direction perpendicular to a plane of the substrate 10, so that the fifth side C5 is inclined toward the sixth side C6 even though the fifth side C5 is higher than the sixth side C6, so that the light emitting structure of the first blue pixel B1 has a third inclination angle θ 3 with respect to the surface of the substrate 10.
In the embodiment of the present invention, the driving transistor T and the storage capacitor C having different heights are used as an example, but the present invention is not limited thereto, and the anode 12 may be disposed in other regions having different inclinations in other embodiments.
In addition, in the embodiment of the present invention, only the anode 12 of the first red pixel R1 may be disposed above the storage capacitor C with an inclination, or only the anode 12 of the first green pixel G1 may be disposed above the storage capacitor C with an inclination, or only the anode 12 of the first blue pixel B1 may be disposed above the storage capacitor C with an inclination, or the anodes 12 of the first red pixel R1, the first green pixel G1, and the first blue pixel B1 may be disposed above the corresponding storage capacitors C, which is not described in detail herein.
In another embodiment of the present invention, the inclination angles of the first red pixel R1, the first green pixel G1, and the first blue pixel B1 can also be realized by providing a raised structure at the bottom of the anode 12, which does not require adjustment of the structure of the anode 12 or the storage capacitor C, and the manufacturing process is simple.
In the embodiment of the present invention, the anode 12 of the first red pixel R1 includes a first side C1 and a second side C2 opposite to each other, the first side C1 is located on a side away from the main display area S1, the second side C2 is located on a side close to the main display area S1, and between the anode 12 of the first red pixel R1 and the substrate 10, a partial region close to the first side C1 and away from the second side C2 has a first elevated structure, so that the first side C1 is inclined toward the second side C2, and the light emitting structure of the first red pixel R1 has a first inclination angle θ 1 relative to the surface of the substrate 10;
and/or the anode 12 of the first green pixel G1 includes a third side C3 and a fourth side C4 opposite to each other, the third side C3 is located at a side close to the main display area S1, the fourth side C4 is located at a side far from the main display area S1, and a partial region close to the third side C3 and far from the fourth side C4 between the anode 12 of the first green pixel G1 and the substrate 10 has a second pad-up structure, so that the third side C3 is inclined towards the fourth side C4, and the light emitting structure of the first green pixel G1 has a second inclination angle θ 2 relative to the surface of the substrate 10;
and/or the anode of the first blue pixel B1 includes a fifth side C5 and a sixth side C6 opposite to each other, the fifth side C5 is located at a side close to the main display area S1, the sixth side C6 is located at a side far from the main display area S1, and a third elevated structure is provided between the anode 12 of the first blue pixel B1 and the substrate 10 at a partial region close to the fifth side C5 and far from the sixth side C6, so that the fifth side C5 is inclined toward the sixth side C6, and the light emitting structure of the first blue pixel B1 has a third inclination angle θ 3 with respect to the surface of the substrate 10.
Optionally, the padding structure, i.e. the first padding structure, the second padding structure and the third padding structure, is formed by one thin film layer or multiple thin film layers in the circuit structure.
As shown in fig. 9, fig. 9 is a schematic cross-sectional view of another array substrate according to an embodiment of the present invention, in which thin film layers in the circuit structure include a buffer layer 14, a semiconductor layer 15, a gate insulating layer 16, a gate layer 17, an interlayer insulating layer 18, a source and drain layer 19, a storage capacitor layer 20, and a planarization layer 21. That is, the first, second, and third elevation structures are composed of one or more thin film layers of the buffer layer 14, the semiconductor layer 15, the gate insulating layer 16, the gate layer 17, the interlayer insulating layer 18, the source and drain electrode layer 19, the storage capacitor layer 20, and the planarization layer 21.
In the structure shown in fig. 9, only the first, second, and third elevation structures D1, D2, and D3 are described as examples of the configuration of the interlayer insulating layer 18, that is, the interlayer insulating layer 18 in the elevation structure portion is higher than the interlayer insulating layer 18 in the other portion so as to have an inclination angle with respect to the anode 12 at the top portion, but the present invention is not limited thereto.
Optionally, the padding structure, i.e. the first padding structure, the second padding structure and the third padding structure, may also be formed by one or more metal layers in the circuit structure, so that only the metal layer to be padded is required to be retained when the metal layer is etched, which is not only low in cost, but also simple in manufacturing process.
The metal layer includes a gate layer 17, a source and drain layer 19, and a storage capacitor layer 20. That is, the first, second, and third raised structures may be formed of one or more metal layers among the gate layer 17, the source and drain layers 19, and the storage capacitor layer 20.
In another embodiment of the present invention, the inclination angles of the first red pixel R1, the first green pixel G1, and the first blue pixel B1 can also be realized by providing an inclined groove between the anode 12 and the substrate 10, which does not require adjustment of the structure of the anode 12 or the storage capacitor C, and does not require additional film layers, so that the manufacturing process is simple and the cost is low.
Specifically, the anode 12 of the first red pixel R1 has a first inclined groove between it and the substrate 10, and the light emitting structure of the first red pixel R1, that is, the anode 12, the cathode 11, and the organic light emitting layer 13, are disposed in the first inclined groove so that the light emitting structure of the first red pixel R1 has a first inclination angle θ 1 with respect to the surface of the substrate 10;
and/or a second inclined groove is arranged between the anode 12 of the first green pixel G1 and the substrate 10, and the light-emitting structure of the first green pixel G1, namely the anode 12, the cathode 11 and the organic light-emitting layer 13, is arranged in the second inclined groove, so that the light-emitting structure of the first green pixel G1 has a second inclined angle theta 3 relative to the surface of the substrate 10;
and/or a third inclined groove is formed between the anode 12 of the first blue pixel B1 and the substrate 10, and the light emitting structure of the first blue pixel B1, namely the anode 12, the cathode 11 and the organic light emitting layer 13, is arranged in the third inclined groove, so that the light emitting structure of the first blue pixel B1 has a third inclination angle theta 3 relative to the surface of the substrate 10.
Optionally, the inclined grooves are located on the planarization layer 21 between the substrate 10 and the anode 12 of the light emitting structure. As shown in fig. 10, which is a schematic cross-sectional structure of another array substrate according to an embodiment of the present invention, a first inclined groove Q1, a second inclined groove Q2, and a third inclined groove Q3 are disposed on a planarization layer 21, that is, a first inclined groove Q1, a second inclined groove Q2, and a third inclined groove Q3 are formed by etching the planarization layer 21. Of course, the invention is not limited thereto, and in other embodiments, the inclined grooves may be formed by etching other film layers between the anode 12 and the substrate 10.
It should be noted that, in the embodiment of the present invention, the anode 12 may be disposed above the storage capacitor C and above the raised structure at the same time, or the anode 12 may be disposed above the raised structure and above the inclined groove at the same time, that is, in the embodiment of the present invention, any one, two, or three of the above three embodiments may be adopted to make the anode 12 have the inclined angle. Of course, other embodiments may be used to realize the inclination angle of the anode 12 in the embodiment of the present invention.
In any embodiment of the present invention, in the curved display area S2, the angle of the first inclination angle θ 1 gradually increases from the side close to the main display area S1 to the side far from the main display area S1, that is, in the direction in which the main display area S1 points to the curved display area S2; and/or, in the curved display area S2, the angle of the second inclination angle θ 2 gradually increases from the side close to the main display area S1 to the side far from the main display area S1, i.e., in the direction in which the main display area S1 points to the curved display area S2; and/or, in the curved display area S2, the angle of the third inclination angle θ 3 gradually increases from a side close to the main display area S1 to a side far from the main display area S1, that is, in a direction in which the main display area S1 points toward the curved display area S2.
That is, in the curved display area S2, the closer to the main display area S1, the smaller the angle of the first inclination angle θ 1 of the first red pixel R1, and the farther from the main display area S1, the larger the angle of the first inclination angle θ 1 of the first red pixel R1; the closer to the main display region S1, the smaller the angle of the second inclination angle θ 2 of the first green pixel G1, and the farther from the main display region S1, the larger the angle of the second inclination angle θ 2 of the first green pixel G1; the closer to the main display region S1, the smaller the angle of the third inclination angle θ 3 of the first blue pixel B1 is, and the farther from the main display region S1, the larger the angle of the third inclination angle θ 3 of the first blue pixel B1 is, so that the display screen colors of the respective display regions viewed under a large viewing angle are more uniformly improved in a gradation angle manner.
It should be noted that, in the embodiment of the present invention, the anodes 12 of the second red pixel R2, the second green pixel G2 and the second blue pixel B2 in the main display region S1 have no inclination angle with respect to the substrate 10, but the present invention is not limited thereto, and in other embodiments, the anodes 12 of the second red pixel R2, the second green pixel G2 and the second blue pixel B2 may have an inclination angle with respect to the substrate 10 in a partial region of the main display region S1 close to the curved surface display region S2. In addition, in the direction in which the main display area S1 points to the curved display area S2, the inclination angles of the second red pixel R2, the second green pixel G2 and the second blue pixel B2 may be gradually increased, so that the display uniformity of each display area may be improved.
An embodiment of the present invention further provides a display panel, as shown in fig. 11, fig. 11 is a schematic cross-sectional structure diagram of the display panel provided in the embodiment of the present invention, where the display panel 100 includes the array substrate provided in any one of the above embodiments, the array substrate further includes a package layer 20, and further includes a touch electrode layer 21 and a protection layer 22 located on the package layer 20, and details are not repeated here.
Fig. 12 is a schematic view of a display device 1 according to an embodiment of the present invention, and fig. 12 is a schematic view of a structure of the display device 1, where the display device includes the display panel 100 according to any one of the embodiments. The display device includes, but is not limited to, a mobile phone, a tablet computer, and the like.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. The array substrate is characterized by comprising a display area, wherein the display area comprises a main display area and a curved surface display area positioned at the periphery of the main display area;
the curved display area comprises a plurality of first red pixels for emitting red light, a plurality of first green pixels for emitting green light and a plurality of first blue pixels for emitting blue light;
each pixel comprises a circuit structure positioned on the surface of the substrate of the array substrate and a light-emitting structure positioned on the surface of the circuit structure, wherein the circuit structure comprises a plurality of transistors and at least one capacitor, and the light-emitting structure comprises a cathode, an anode and an organic light-emitting layer positioned between the cathode and the anode;
one side of the light-emitting structure of the first red pixel close to the main display area is lower than one side far away from the main display area, so that the light-emitting structure of the first red pixel has a first inclination angle relative to the surface of the substrate;
one side of the light-emitting structure of the first green pixel close to the main display area is higher than one side far away from the main display area, so that the light-emitting structure of the first green pixel has a second inclination angle relative to the surface of the substrate;
the side, close to the main display area, of the light-emitting structures of the first blue pixels is higher than the side far away from the main display area, so that the light-emitting structures of the first blue pixels have a third inclination angle relative to the surface of the substrate;
in the curved surface display area, the closer to the main display area, the smaller the angle of the first inclination angle, and the farther away from the main display area, the larger the angle of the first inclination angle; the closer to the main display area, the smaller the angle of the second inclination angle, and the farther from the main display area, the larger the angle of the second inclination angle; the closer to the main display area, the smaller the angle of the third inclination angle, and the farther away from the main display area, the larger the angle of the third inclination angle, so that the color of the display picture of each display area viewed under a large viewing angle is more uniform in a gradual angle manner.
2. The array substrate of claim 1, wherein the circuit structure comprises a driving transistor and a storage capacitor electrically connected with the driving transistor, and the anode is electrically connected with the drain of the driving transistor through a first via;
the anode of the first red pixel comprises a first side edge and a second side edge which are opposite, the first side edge is positioned on one side far away from the main display area, the second side edge is positioned on one side close to the main display area, and in the direction perpendicular to the plane of the substrate, the projection of the first side edge is overlapped with the projection of at least one electrode plate of the storage capacitor of the first red pixel, so that the first side edge is inclined towards the second side edge, and the light-emitting structure of the first red pixel has a first inclination angle relative to the surface of the substrate;
the anode of the first green pixel comprises a third side and a fourth side which are opposite, the third side is positioned on one side close to the main display area, the fourth side is positioned on one side far away from the main display area, and in the direction perpendicular to the plane of the substrate, the projection of the third side is overlapped with the projection of at least one electrode plate of the storage capacitor of the first green pixel, so that the third side is inclined towards the fourth side, and the light-emitting structure of the first green pixel has a second inclination angle relative to the surface of the substrate;
the anode of the first blue pixel comprises a fifth side edge and a sixth side edge which are opposite, the fifth side edge is positioned on one side close to the main display area, the sixth side edge is positioned on one side far away from the main display area, and in the direction perpendicular to the plane of the substrate, the projection of the fifth side edge is overlapped with the projection of at least one electrode plate of the storage capacitor of the first blue pixel, so that the fifth side edge inclines towards the sixth side edge, and the light-emitting structure of the first blue pixel has a third inclination angle relative to the surface of the substrate.
3. The array substrate of claim 1, wherein the anode of the first red pixel comprises a first side and a second side which are opposite to each other, the first side is located at a side far away from the main display area, the second side is located at a side close to the main display area, and a partial area between the anode of the first red pixel and the substrate, which is close to the first side and far away from the second side, is provided with a first raised structure, so that the first side is inclined towards the second side, and the light emitting structure of the first red pixel has a first inclination angle relative to the surface of the substrate;
the anode of the first green pixel comprises a third side edge and a fourth side edge which are opposite, the third side edge is positioned on one side close to the main display area, the fourth side edge is positioned on one side far away from the main display area, and a partial area, close to the third side edge and far away from the fourth side edge, between the anode of the first green pixel and the substrate is provided with a second heightening structure, so that the third side edge is inclined towards the fourth side edge, and the light emitting structure of the first green pixel has a second inclination angle relative to the surface of the substrate;
the anode of the first blue pixel comprises a fifth side edge and a sixth side edge which are opposite, the fifth side edge is positioned on one side close to the main display area, the sixth side edge is positioned on one side far away from the main display area, and a partial area, close to the fifth side edge and far away from the sixth side edge, between the anode of the first blue pixel and the substrate is provided with a third elevated structure, so that the fifth side edge inclines towards the sixth side edge, and the light emitting structure of the first blue pixel has a third inclination angle relative to the surface of the substrate.
4. The array substrate of claim 3, wherein the elevated structure is formed by one or more thin film layers in the circuit structure.
5. The array substrate of claim 4, wherein the thin film layers of the circuit structure comprise a buffer layer, a semiconductor layer, a gate insulating layer, a gate layer, an interlayer insulating layer, a source and drain layer, a storage capacitor layer, and a planarization layer.
6. The array substrate of claim 4, wherein the raised structure is formed by one or more metal layers in the circuit structure.
7. The array substrate of claim 6, wherein the metal layer comprises a gate layer, a source and drain layer, and a storage capacitor layer.
8. The array substrate of claim 1, wherein the anode of the first red pixel and the substrate have a first inclined groove therebetween, and the light emitting structure of the first red pixel is disposed in the first inclined groove such that the light emitting structure of the first red pixel has a first inclination angle with respect to the surface of the substrate;
a second inclined groove is formed between the anode of the first green pixel and the substrate, and the light emitting structure of the first green pixel is arranged in the second inclined groove so that the light emitting structure of the first green pixel has a second inclined angle relative to the surface of the substrate;
and a third inclined groove is formed between the anode of the first blue pixel and the substrate, and the light emitting structure of the first blue pixel is arranged in the third inclined groove so that the light emitting structure of the first blue pixel has a third inclined angle relative to the surface of the substrate.
9. The array substrate of claim 8, wherein the tilted grooves are on a planarization layer between the substrate and the anode of the light emitting structure.
10. A display panel comprising the array substrate according to any one of claims 1 to 9.
11. A display device characterized by comprising the display panel according to claim 10.
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