CN108877518B - Array substrate and curved surface display screen - Google Patents
Array substrate and curved surface display screen Download PDFInfo
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- CN108877518B CN108877518B CN201810671380.XA CN201810671380A CN108877518B CN 108877518 B CN108877518 B CN 108877518B CN 201810671380 A CN201810671380 A CN 201810671380A CN 108877518 B CN108877518 B CN 108877518B
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Abstract
The embodiment of the invention discloses an array substrate, which is applied to a curved surface display screen, wherein the curved surface display screen comprises a plane display area and a curved surface display area, and the array substrate comprises: a first substrate; the planarization layer is positioned on the first side of the first substrate and comprises a first area corresponding to the flat display area and a second area corresponding to the curved display area, and at least part of the surface of the second area is an inclined plane; the display units are positioned on the surface of the planarization layer and comprise a first electrode, a light-emitting unit and a second electrode which are superposed; a pixel defining layer positioned between the first electrode and the light emitting unit, the pixel defining layer dividing an area where the display unit is positioned into an opening area and a non-light emitting area surrounding the opening area; the opening areas of the display units in the second area are at least partially located on the inclined plane, so that when the array substrate is applied to the curved surface display screen, the color drift phenomenon of the curved surface display area is relieved, and the picture display quality of the curved surface display screen is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to an array substrate for display and a curved display screen comprising the same.
Background
With the development of display, the market demand for display products is gradually increased, and curved surface display receives more and more extensive attention with its elegant appearance, vivid picture feeling and comfortable human eye experience. However, the existing curved display screen has a large viewing angle color drift phenomenon when displaying a picture, so that the picture display quality of a curved area of the curved display screen needs to be improved.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention provide an array substrate, so as to alleviate a color drift phenomenon of a curved surface display area of a curved surface display screen and improve a picture display quality of the curved surface display screen when the array substrate is applied to the curved surface display screen.
In order to solve the above problems, the embodiments of the present invention provide the following technical solutions:
the utility model provides an array substrate, is applied to curved surface display screen, and curved surface display screen includes plane display area and curved surface display area, and this array substrate includes:
a first substrate;
the planarization layer is positioned on the first side of the first substrate and comprises a first area corresponding to the flat display area and a second area corresponding to the curved display area, and at least part of the surface of the second area is an inclined plane;
the display units are positioned on the surface of the planarization layer and comprise a first electrode, a light-emitting unit and a second electrode which are superposed;
a pixel defining layer positioned between the first electrode and the light emitting unit, the pixel defining layer dividing an area where the display unit is positioned into an opening area and a non-light emitting area surrounding the opening area;
wherein the opening area of each display unit located in the second area is at least partially located on the inclined plane.
Compared with the prior art, the technical scheme has the following advantages:
according to the technical scheme provided by the embodiment of the invention, the opening areas of the display units positioned in the second area are at least partially positioned on the inclined plane, so that when the array substrate is applied to the curved surface display screen, the light ray emergent angle of the curved surface display area can be changed, the light ray quantity of the light ray of the curved surface display area which is emitted into human eyes is increased, the brightness of the curved surface display area is increased, the brightness difference between the curved surface display area and the plane display area is reduced, the color drift phenomenon of the curved surface display area is relieved, and the image display quality of the curved surface display screen is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of emergent light directions of display units located at different positions in a curved display screen in the prior art;
fig. 2 is a schematic structural diagram of an array substrate according to an embodiment of the present invention;
fig. 3 is a top view of a display unit in an array substrate according to an embodiment of the invention;
FIG. 4 is a structural cross-sectional view of the display unit shown in FIG. 3;
fig. 5 is a schematic diagram illustrating relative positions of a display unit E and a display unit F in an array substrate according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating the brightness of the display unit E and the display unit F at different viewing angles in the array substrate according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an array substrate according to another embodiment of the invention;
FIG. 8 is a top view of a planarization layer in the array substrate shown in FIG. 7;
fig. 9 is a schematic structural diagram of an array substrate according to yet another embodiment of the present invention;
fig. 10 is a schematic structural diagram of an array substrate according to still another embodiment of the present invention;
fig. 11 is a top view of a planarization layer in the array substrate shown in fig. 10;
fig. 12 is a schematic structural diagram of an array substrate according to yet another embodiment of the present invention;
fig. 13 is a schematic structural diagram of an array substrate according to still another embodiment of the invention;
fig. 14 is a schematic structural diagram of an array substrate according to yet another embodiment of the present invention;
fig. 15 is a schematic partial structure diagram of a curved display screen according to an embodiment of the present invention.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As described in the background section, the existing curved display screen has a large viewing angle color drift phenomenon when displaying a picture, so that the picture display quality of the curved area of the curved display screen needs to be improved.
The research shows that the reason is that when the display screen of the prior curved display screen displays the picture, the directions of the emergent rays corresponding to the display units of the plane display area and the curved display area are different, as shown in fig. 1, the direction of the outgoing ray corresponding to the front viewing angle of a certain display cell a in the flat display area is a1, the direction of the outgoing ray corresponding to the front viewing angle of a certain display cell B in the curved display area is B1, the angle between the two outgoing ray directions is large, when a user views the display screen of the curved display screen directly in front of the central region of the curved display screen, the quantity of the light rays emitted by the display unit positioned in the plane display area and entering human eyes is far larger than that of the light rays emitted by the display unit positioned in the curved surface display area and entering the human eyes, therefore, the color drift phenomenon of a large visual angle exists in the display picture of the conventional curved surface display screen, and the picture display quality needs to be improved.
In view of this, an embodiment of the present invention provides an array substrate applied to a curved display panel, where the curved display panel includes a planar display area and a curved display area, as shown in fig. 2, the array substrate includes:
a first substrate 10; a planarization layer 20 disposed on the first side of the first substrate 10, wherein the planarization layer 20 includes a first region corresponding to the flat display region and a second region corresponding to the curved display region, and at least a portion of the surface of the second region is an inclined plane; a plurality of display cells 30 on the surface of the planarization layer 20, the display cells 30 including a first electrode 31, a light emitting cell 32, and a second electrode 33 which are stacked; a pixel defining layer 40 between the first electrode 31 and the light emitting unit 32, the pixel defining layer 40 dividing an area where the display unit 30 is located into an opening area and a non-emitting area surrounding the opening area; the opening area of each display unit positioned in the second area is at least partially positioned on the inclined plane, so that the light rays of the part of each display unit positioned on the inclined plane can be emitted out perpendicular to the inclined plane, and the direction of the emitted light rays of the display units is changed.
Specifically, on the basis of the above embodiments, in an embodiment of the present invention, the plurality of display units include a red display unit, a green display unit, and a blue display unit, the first electrode is an anode, the light emitting unit is an OLED light emitting unit, and the second electrode is a cathode, but the present invention is not limited thereto, and is specifically determined as the case may be.
According to the array substrate provided by the embodiment of the invention, the opening areas of the display units positioned in the second area are at least partially positioned on the inclined plane, so that when the array substrate is applied to the curved surface display screen, the light ray emergent angle of the curved surface display area can be changed, the light ray quantity of the light ray of the curved surface display area which is emitted into human eyes is increased, the brightness of the curved surface display area is increased, the brightness difference between the curved surface display area and the plane display area is reduced, the color drift phenomenon of the curved surface display area is relieved, and the image display quality of the curved surface display screen is improved.
On the basis of any of the above embodiments, in an embodiment of the invention, the entire surface of the second region is an inclined plane, that is, the opening regions and the non-light emitting regions of the display units located in the second region are all located on the inclined plane, that is, the display units located in the second region are located on the side wall of the same groove, so as to reduce the process difficulty of the array substrate.
In another embodiment of the invention, part of the surface of the second area is a bevel. In one embodiment of the present invention, the opening areas of the display units located in the second region are all located on the inclined plane, and the non-light-emitting region is not located on the inclined plane; in another embodiment of the present invention, the opening area of each display unit located in the second region is partially located on the inclined plane, partially not located on the inclined plane, and the non-light emitting region is not located on the inclined plane.
Specifically, in an embodiment of the present invention, as shown in fig. 3 and 4, fig. 3 is a top view of a display unit, and fig. 4 is a cross-sectional view of the display unit, in this embodiment, an opening area of the display unit includes a first opening area C1 and a second opening area C2 surrounding the first opening area C1, wherein a predetermined area of the second opening area C2 is located on a slope, wherein the predetermined area includes at least a portion of the second opening area facing a flat display area. That is, in the embodiment of the present invention, each display unit corresponds to one recess, and the predetermined area of the second opening area C2 of each display unit is located on the sidewall of its corresponding recess. It should be noted that, in the embodiment of the present invention, each display unit corresponds to one groove, and therefore, in the array substrate provided in the embodiment of the present invention, an included angle between a preset area of the second opening area C2 of each display unit located in the second area and the respective first opening area may be the same or different.
As further shown in fig. 3 and 4, the non-light emitting regions of the display unit include a first non-light emitting region D1 and a second non-light emitting region D2, wherein the first non-light emitting region D1 is located between the second opening region C2 and the second non-light emitting region D2, a side of the first non-light emitting region D1 facing the second opening region C2 is used to define a boundary of the opening region of the display unit, and a side of the second non-light emitting region D2 facing away from the first non-light emitting region D1 is used to define a boundary of an adjacent display unit.
Optionally, on the basis of the above embodiment, in an embodiment of the present invention, the included angles between the preset areas of the second opening areas of the display units located in the second area and the respective first opening areas are not completely the same.
It should be noted that, because the larger the distance between each display unit located in the second region and the flat display region, the more serious the color drift phenomenon of the display unit, as shown in fig. 5 and 6, fig. 5 shows a schematic diagram of the relative positions of the display unit E and the display unit F, where the distance between the display unit E and the center of the flat display region is smaller than the distance between the display unit F and the center of the flat display region, and the included angle between the plane of the display unit E and the horizontal plane G is smaller than the included angle between the plane of the display unit F and the horizontal plane G; fig. 6 shows the luminance of the display unit E and the display unit F at different viewing angles, and it can be seen from fig. 6 that the maximum luminance viewing angle of the display unit E is smaller than that of the display unit F.
Therefore, on the basis of the above-mentioned embodiment, in an embodiment of the present invention, the angle between the preset region of the second opening region of the display unit E and the first opening region thereof may be set smaller than the angle between the preset region of the second opening region of the display unit F and the first opening region thereof, thereby pertinently improving the color drift of the display unit located at different positions of the curved display region.
Specifically, on the basis of any of the above embodiments, in an embodiment of the present invention, an included angle between a preset area of the second opening area of each display unit located in the second area and arranged along the second direction and the respective first opening area thereof gradually increases with an increase in the distance between the display unit and the center of the curved display screen, so as to perform targeted color drift improvement on the display units at different positions, thereby maximally improving the image display quality of the curved display screen applied to the array substrate.
It should be noted that, because the color drift phenomena of the display units located in the second region and having the same distance from the flat display region are substantially the same, in an embodiment of the present invention, on the basis of the above embodiment, the included angles between the preset regions of the second opening regions of the display units located in the second region and arranged along the first direction and the respective first opening regions are the same, so that the colors of the display units having the same distance from the flat display region are substantially the same, and the uniformity of the display screen is improved. However, the present invention is not limited thereto, as the case may be. The first direction is parallel to the left frame and the right frame of the curved surface display screen, and the second direction is parallel to the upper frame and the lower frame of the curved surface display screen.
On the basis of any of the above embodiments, in an embodiment of the present invention, an included angle between the slope and the flat display region is in a range of 30 to 60 °, inclusive, to ensure an improved color drift phenomenon of each display unit located in the second region. Optionally, on the basis of any of the above embodiments, in an embodiment of the present invention, the thickness of the second planarization layer ranges from 500nm to 2 μm, so as to not increase the thickness of the array substrate too much on the basis of ensuring the improvement effect of the color shift phenomenon at a large viewing angle, thereby adapting to the development trend of lightness and thinness when the array substrate is applied to a curved display screen.
On the basis of any of the above embodiments, in an embodiment of the present invention, as shown in fig. 7, the planarization layer 20 includes a first planarization layer 21 and a second planarization layer 22, wherein the second planarization layer 22 is located on the surface of the first planarization layer 21, the second planarization layer 22 has a groove, the groove exposes a portion of the surface of the first planarization layer 21, and at least one sidewall surface of the groove is an inclined surface.
Specifically, on the basis of the above embodiment, in an embodiment of the present invention, a method for forming a planarization layer includes: forming a first planarization layer on a first side of a first substrate; and forming a second planarization layer on the side of the first planarization layer, which is far away from the first substrate, wherein the second planarization layer is provided with a groove, the groove exposes part of the surface of the first planarization layer, and at least one side wall surface of the groove is an inclined surface. It should be noted that, in the embodiment of the present invention, the groove may be formed through deposition and etching processes, or may be formed through other processes, which is not limited in the present invention, and is determined as the case may be.
It should be noted that, when a part of the surface of the second region is a slant surface, taking an example that one display unit corresponds to one groove, in an embodiment of the present invention, as shown in fig. 7 and 8, where fig. 8 is a top view of the planarization layer 20 in fig. 7, the side walls of the groove include a first side wall L1 facing a side of the flat display region, a second side wall L2 facing away from the flat display region, a third side wall L3 connecting the first side wall and the second side wall, and a fourth side wall L4 connecting the first side wall and the second side wall. However, the present invention is not limited thereto, and in other embodiments of the present invention, the side wall of the groove may further include another number of side walls, such as three side walls, five side walls, six side walls, and the like, as the case may be.
For convenience of explanation, the groove includes a first sidewall facing a side of the flat display area, a second sidewall facing away from the flat display area, a third sidewall connecting the first sidewall and the second sidewall, and a fourth sidewall connecting the first sidewall and the second sidewall.
When the array substrate is applied to a curved display screen for displaying, the amount of light entering human eyes from the light rays emitted from each display unit in the curved display area can be increased only by increasing the amount of light emitted from each display unit in the curved display area towards the flat display area, so as to alleviate the color drift phenomenon of the curved display screen In) to on increasing the basis that the light that the display element is arranged in the lateral wall of recess towards the light volume that the light of the lateral wall part of plane display region one side got into the people's eye, can not reduce the light volume that the emergent light of other parts of display element got into the people's eye, thereby the colour drift phenomenon of furthest's alleviating curved surface display screen.
In another embodiment of the present invention, in order not to reduce the amount of light entering the human eye from the light emitted from the other portion of the display unit on the basis of increasing the amount of light entering the human eye from the side wall portion of the side wall of the groove toward the flat display region side, as shown in fig. 9, in one embodiment of the invention, the surface of the side wall L2 of the side wall of the recess facing away from the flat display area is non-sloped, or the surface of the side wall L2 of the side wall of the recess facing away from the flat display area is beveled but located in the non-light emitting area of the display element, so that a portion of the second opening area in each display unit located in the second area that faces away from the flat display area is not located on the slope, that is, the first electrode region corresponding to the portion of the second opening region facing away from the flat display region in each display unit located in the second region is not located on the slope.
Assuming that the direction from the flat display area to the curved display area is a first direction, i.e. the first direction is parallel to the left and right frames of the curved display screen, and the second direction is perpendicular to the first direction, i.e. the second direction is parallel to the upper and lower frames of the curved display screen.
Since the third sidewall and the fourth sidewall of the groove are located on the upper and lower frames of the groove facing the array substrate and are configured as an inclined surface or a non-inclined surface, neither the light quantity of the display unit located at the groove facing the flat display area will be affected.
It should be noted that, in other embodiments of the present invention, each sidewall of the groove may also be an inclined surface, that is, the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall are inclined surfaces, so as to reduce the difficulty of the groove process.
In another embodiment of the present invention, as shown in fig. 10, the planarization layer 20 includes a first planarization layer 21 and a second planarization layer 23, wherein the second planarization layer 23 is located on the surface of the first planarization layer 21, the second planarization layer 23 is a convex structure, and at least one sidewall surface of the convex structure is a slope.
Specifically, on the basis of the above embodiment, in an embodiment of the present invention, a method for forming a planarization layer includes: forming a first planarization layer on a first side of a first substrate; and forming a second planarization layer on the side of the first planarization layer, which is far away from the first substrate, wherein the second planarization layer is a convex structure, and the surface of at least one side wall of the convex structure is an inclined plane. It should be noted that, in the embodiment of the present invention, the protrusion structure may be formed by an evaporation process, or may be formed by other processes such as deposition, etching, and the like, which is not limited in this respect, and is determined as the case may be.
When a part of the surface of the second region is a slant surface, taking a display unit corresponding to a groove as an example, in an embodiment of the present invention, as shown in fig. 10 and 11, fig. 11 is a top view of the planarization layer 20 in fig. 10, and the sidewalls of the protrusion structure include a fifth sidewall L5 facing a side of the planar display region, a sixth sidewall L6 facing away from the planar display region, a seventh sidewall L7 connecting the fifth sidewall and the sixth sidewall, and an eighth sidewall L8 connecting the fifth sidewall and the sixth sidewall. However, the present invention is not limited thereto, and in other embodiments of the present invention, the sidewalls of the protrusion structure may also include other numbers of sidewalls, such as three sidewalls, five sidewalls, six sidewalls, and the like, as the case may be.
For convenience of explanation, the convex structure includes a fifth sidewall facing a side of the flat display area, a sixth sidewall facing away from the flat display area, a seventh sidewall connecting the fifth sidewall and the sixth sidewall, and an eighth sidewall connecting the fifth sidewall and the sixth sidewall.
When the array substrate is applied to a curved surface display screen for displaying, the light quantity of the light rays entering human eyes from the display units in the curved surface display area can be increased only by increasing the light ray quantity of the light rays emitted from the display units in the curved surface display area towards the plane display area, and the color drift phenomenon of the curved surface display screen is relieved. Therefore, on the basis of the above-mentioned embodiment, in an embodiment of the present invention, only the sidewall surface of the sidewall of the protruding structure facing the side of the flat display area is a slope (continuing to take the example that the protruding structure includes the above-mentioned four sidewalls, the fifth sidewall surface is a slope), so that only a portion of the second opening region in each display unit located in the second region facing the flat display region is located on the inclined plane (i.e. the first electrode region corresponding to the portion of the second opening region in each display unit located in the second region facing the flat display region is located on the inclined plane), therefore, on the basis of increasing the light quantity of the display unit entering the human eyes from the light towards the side wall part on one side of the plane display area in the side wall of the convex structure, the light quantity of the light emitted from other parts of the display unit entering the human eyes can not be reduced, and the color drift phenomenon of the curved surface display screen can be relieved to the maximum extent.
In another embodiment of the present invention, in order not to reduce the amount of light entering human eyes from light emitted from other portions of the display unit on the basis of increasing the amount of light entering human eyes from the sidewall portion of the protrusion structure facing the flat display region side, as shown in fig. 12, in one embodiment of the invention, the surface of the sidewall of the protruding structure facing away from the flat display area is non-sloped, or the surface of the side wall of the raised structure on the side facing away from the plane display area is a slope but is positioned in the non-light-emitting area of the display unit, so that a portion of the second opening area in each display unit located in the second area that faces away from the flat display area is not located on the slope, that is, the first electrode region corresponding to the portion of the second opening region facing away from the flat display region in each display unit located in the second region is not located on the slope.
Assuming that the direction from the flat display area to the curved display area is a first direction, i.e. the first direction is parallel to the left and right frames of the curved display screen, and the second direction is perpendicular to the first direction, i.e. the second direction is parallel to the upper and lower frames of the curved display screen.
Since the seventh sidewall and the eighth sidewall of the protrusion structure are located on the upper and lower frames of the protrusion structure facing the array substrate and are configured as inclined surfaces or non-inclined surfaces, which do not affect the amount of light rays from the display unit located at the protrusion structure facing the flat display area, on the basis of any of the above embodiments, in an embodiment of the present invention, the seventh sidewall and/or the eighth sidewall of the protrusion structure may be an inclined surface or a non-inclined surface, as the case may be.
It should be noted that, in other embodiments of the present invention, each sidewall of the protrusion structure may also be an inclined surface, that is, the fifth sidewall, the sixth sidewall, the seventh sidewall, and the eighth sidewall are inclined surfaces, so as to reduce the process difficulty of the protrusion structure.
On the basis of any of the above embodiments, in an embodiment of the present invention, as shown in fig. 13 and 14, the array substrate further includes: the display device includes thin film transistors 50 corresponding to the display units one by one, scan lines 60 electrically connected to gates of the thin film transistors 50, and data lines 70 electrically connected to sources of the thin film transistors 50, and drains of the thin film transistors 50 are electrically connected to the first electrodes 31. As shown in fig. 3, 13 and 14, wherein the first electrode 31 and the drain electrode of the thin film transistor 50 are electrically connected through the contact hole 80. Specifically, in operation, the scan line 60 electrically connected to the tft 50 controls the tft 50 to be turned on, and transmits a data signal in the data line 70 to the first electrode 31 through the tft 50, thereby controlling the display of each display unit. It should be noted that the control module for the display unit described above in fig. 13 and fig. 14 is only schematically described, and those skilled in the art can understand that the driving module for controlling the display of the display unit may further include a capacitor, and a plurality of switching transistors, for example, when the display panel is an OLED display panel, a pixel driving circuit including a capacitor, a driving transistor, and a plurality of switching transistors may be used for controlling the OLED unit to emit light. This is not limited in this application.
In addition, an embodiment of the present invention further provides a curved display screen including the array substrate provided in any one of the embodiments, where the curved display screen includes a planar display area and a curved display area. Specifically, as shown in fig. 15, in an embodiment of the present invention, the curved display panel includes the array substrate 100 provided in any of the above embodiments and an opposite substrate 200 disposed opposite to the array substrate. In another embodiment of the present invention, a curved display screen includes the array substrate provided in any one of the above embodiments and an encapsulation film encapsulating the array substrate. In other embodiments of the present invention, the curved display screen may have other structures as long as the curved display screen includes the array substrate provided in any of the embodiments.
In summary, in the array substrate and the curved display screen including the array substrate provided in the embodiments of the present invention, the opening area of each display unit located in the second region is at least partially located on the inclined plane, so that when the array substrate is applied to the curved display screen, the light exit angle of the curved display region can be changed, thereby increasing the amount of light rays of the curved display region that are incident on human eyes, increasing the brightness of the curved display region, reducing the brightness difference between the curved display region and the flat display region, further alleviating the color drift phenomenon of the curved display region, and improving the image display quality of the curved display screen.
In the description, each part is described in a progressive manner, each part is emphasized to be different from other parts, and the same and similar parts among the parts 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 (12)
1. The utility model provides an array substrate is applied to the curved surface display screen, the curved surface display screen includes plane display area and curved surface display area, its characterized in that includes:
a first substrate;
the planarization layer is positioned on the first side of the first substrate and comprises a first area corresponding to the flat display area and a second area corresponding to the curved display area, and at least part of the surface of the second area is an inclined plane;
the display units are positioned on the surface of the planarization layer and comprise a first electrode, a light-emitting unit and a second electrode which are superposed;
the pixel definition layer is positioned between the first electrode and the light-emitting unit and divides the area where the display unit is positioned into an opening area and a non-light-emitting area surrounding the opening area;
wherein the opening area of each display unit located in the second region is at least partially located on the inclined plane;
the opening areas of the display units comprise a first opening area and a second opening area surrounding the first opening area, wherein the part facing the plane display area in the second opening area in each display unit of the second area is positioned on the inclined plane, and the part facing away from the plane display area in the second opening area in each display unit of the second area is not positioned on the inclined plane.
2. The array substrate of claim 1, wherein the planarization layer comprises a first planarization layer and a second planarization layer, wherein the second planarization layer is located on the surface of the first planarization layer, the second planarization layer has a groove, the groove exposes a portion of the surface of the first planarization layer, and at least one sidewall surface of the groove is the inclined surface.
3. The array substrate of claim 2, wherein each sidewall of the groove is the inclined surface, or a sidewall surface of a side of the sidewall of the groove facing the flat display area is the inclined surface.
4. The array substrate of claim 1, wherein the planarization layer comprises a first planarization layer and a second planarization layer, wherein the second planarization layer is located on the surface of the first planarization layer, the second planarization layer is a raised structure, and at least one sidewall surface of the raised structure is the inclined surface.
5. The array substrate according to claim 4, wherein each of the sidewalls of the protruding structures is the inclined surface, or a surface of one of the sidewalls of the protruding structures facing the flat display area is the inclined surface.
6. The array substrate of claim 1, wherein the entire surface of the second region is the bevel.
7. The array substrate of claim 1, wherein a portion of the surface of the second region is the bevel.
8. The array substrate of claim 7, wherein a predetermined area of the second open area is located on the inclined plane, wherein the predetermined area includes at least a portion of the second open area facing the flat display area.
9. The array substrate of claim 7, wherein the predetermined angle between the second opening area of each display unit in the second area and the first opening area is not exactly the same.
10. The array substrate of claim 8, wherein the preset area of the second opening area of each display unit located in the second area and arranged along the first direction has the same included angle with the respective first opening area;
the included angle between the preset area of the second opening area of each display unit which is positioned in the second area and arranged along the second direction and the respective first opening area is gradually increased along with the increase of the distance between the display unit and the center of the curved surface display screen;
the first direction is parallel to the left frame and the right frame of the curved surface display screen, and the second direction is parallel to the upper frame and the lower frame of the curved surface display screen.
11. The array substrate of any one of claims 1-10, wherein an angle between the bevel and the flat display area is in a range of 30-60 °, inclusive.
12. A curved display screen, comprising:
an array substrate as claimed in any one of claims 1 to 11.
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| TWI714050B (en) * | 2019-04-12 | 2020-12-21 | 友達光電股份有限公司 | Display device |
| CN111384297A (en) * | 2020-03-19 | 2020-07-07 | 武汉华星光电半导体显示技术有限公司 | OLED display panel and display device |
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