CN110212012B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110212012B CN110212012B CN201910631960.0A CN201910631960A CN110212012B CN 110212012 B CN110212012 B CN 110212012B CN 201910631960 A CN201910631960 A CN 201910631960A CN 110212012 B CN110212012 B CN 110212012B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/856—Arrangements for extracting light from the devices comprising reflective means
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
Abstract
The embodiment of the invention discloses a display panel and a display device. The display panel comprises a display area, wherein the display area comprises an array substrate, and a first electrode, a light-emitting functional layer and a second electrode which are sequentially stacked on the surface of the array substrate; the display area comprises a first area, a first set included angle is formed between the surface, adjacent to the light-emitting functional layer, of the first electrode of the first area and the surface, far away from the first electrode, of the array substrate, and the first set included angle is larger than zero and smaller than ninety degrees. The scheme of the embodiment of the invention reduces color cast and improves the display effect.
Description
Technical Field
The present invention relates to display technologies, and in particular, to a display panel and a display device.
Background
With the development of display technology and the improvement of living standard of people, the requirement for the display effect of the display panel is higher and higher.
However, the conventional display panel has color shift of viewing angle, so improving the color shift of the display panel is an urgent problem to be solved in the industry.
Disclosure of Invention
The invention provides a display panel and a display device, which are used for improving the color cast phenomenon of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, including:
the display area comprises an array substrate, and a first electrode, a light-emitting functional layer and a second electrode which are sequentially arranged on the surface of the array substrate in a stacked mode;
the display area comprises a first area, a first set included angle is formed between the surface, adjacent to the light-emitting functional layer, of the first electrode of the first area and the surface, far away from the first electrode, of the array substrate, and the first set included angle is larger than zero and smaller than ninety degrees.
Optionally, the first area is the display area.
Optionally, the display area includes a second area and a bending area located on at least one side of the second area, and the first area is the bending area:
in the bending region and along a direction in which the second region points to the bending region, a vertical distance between a surface of the first electrode adjacent to the light-emitting functional layer and a surface of the array substrate far away from the first electrode is gradually increased.
Optionally, a second set included angle is formed between the surface of the first electrode in the second region, which is adjacent to the light-emitting functional layer, and the surface of the array substrate, which is far away from the first electrode, and is greater than zero and less than ninety degrees.
Optionally, a first included angle is formed between the surface of the first electrode in the first region, which is adjacent to the light-emitting functional layer, and the surface of the first electrode, which is far away from the light-emitting functional layer, and the first included angle is greater than zero and less than or equal to the first set included angle.
Optionally, a second included angle is formed between the surface of the array substrate in the first region, which is adjacent to the first electrode, and the surface of the array substrate far away from the first electrode, and the second included angle is greater than zero and less than or equal to the first set included angle.
Optionally, the array substrate includes a substrate, a driving circuit layer disposed on a surface of the substrate, and a planarization layer covering the driving circuit layer;
the surface of the substrate base plate of the first area, which is close to the driving circuit layer, and the surface far away from the driving circuit layer form a third included angle; and/or the surface of the planarization layer of the first region, which is far away from the driving circuit layer, and the surface of the planarization layer, which is close to the driving circuit layer, form a fourth included angle;
the third included angle is greater than or equal to zero and less than or equal to the second included angle, and the fourth included angle is greater than or equal to zero and less than or equal to the second included angle.
Optionally, the first electrode includes a reflective layer and a transparent conductive layer, and the reflective layer is disposed on one side of the transparent conductive layer adjacent to the array substrate;
the surface of the reflection layer adjacent to the light-emitting functional layer in the first area and the surface far away from the light-emitting functional layer form a fifth included angle, and the fifth included angle is larger than zero and smaller than or equal to the first set included angle.
Optionally, the thickness of the reflective layer is greater than or equal to 60 nm; preferably, the thickness of the reflective layer is in the range of 90-110 nm.
In a second aspect, an embodiment of the present invention further provides a display device, including the display panel according to the first aspect.
According to the embodiment of the invention, the surface of the first electrode of the first area, which is adjacent to the light-emitting function layer, and the surface of the array substrate, which is far away from the first electrode, are provided with the first set included angle, the first set included angle is larger than zero and smaller than ninety degrees, the first area can be the whole display area, when a user watches the display panel at a specific visual angle, the light-emitting angle of the display panel is consistent with or close to the angle of the user watching the display panel, which is equivalent to that the user watches the display panel at a 0 visual angle or a smaller visual angle, and when the user watches the visual angle has a certain offset relative to the specific visual angle, the user watches the display panel at the smaller visual angle, the color cast of the display panel is improved, and the display effect of the display panel at the specific visual angle is improved. Meanwhile, for the display panel with the bending area, the first area can be set as the bending area, and due to the fact that the bending area has certain angle deviation relative to the light emitting direction of the plane area, when the display panel is watched at a large visual angle, the bending area and the plane area have chromaticity difference; the surface of the first electrode, which is close to the light-emitting function layer, of the bending area and the surface, which is far away from the first electrode, of the array substrate are provided with a first set included angle, so that the light emitting direction of the bending area is consistent with that of the plane area, the chromaticity difference between the bending area and the plane area is improved, and the color cast of the display panel is improved.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A1A2 in FIG. 1;
fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A3A4 in FIG. 3;
FIG. 5 is a further cross-sectional view taken along line A3A4 in FIG. 3;
FIG. 6 is a further cross-sectional view taken along line A1A2 in FIG. 1;
FIG. 7 is a further cross-sectional view taken along line A1A2 in FIG. 1;
fig. 8 is a schematic structural diagram of an array substrate according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another array substrate according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a first electrode according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As mentioned in the background art, the color shift phenomenon of the existing display panel has a large viewing angle, and the inventor has found that the reason for the color shift phenomenon is that the luminance decay rate of different color lights is different as the viewing angle is increased. The existing display panel with a relatively serious color cast at a viewing angle includes a display panel watched at a specific viewing angle, such as a vehicle-mounted display screen, and because the starting viewing angle of the display screen is relatively large, a relatively large color cast occurs when the viewing angle of a user is deviated.
Based on the above technical problem, the present embodiment provides the following solutions:
the present embodiment provides a display panel including:
the display area comprises an array substrate, and a first electrode, a light-emitting functional layer and a second electrode which are sequentially arranged on the surface of the array substrate in a stacked mode;
the display area comprises a first area, a first set included angle is formed between the surface, adjacent to the light-emitting functional layer, of the first electrode of the first area and the surface, far away from the first electrode, of the array substrate, and the first set included angle is larger than zero and smaller than ninety degrees.
The first region may be the entire display region, or may be a specific region with a severe color cast in the display region, such as a bending region. When the first region is a specific region with a severe color cast, the display panel may include one or more first regions, and the first preset included angles corresponding to the first regions may be the same or different. The specific view angle is an included angle between the sight line of the user and a perpendicular line of the surface of the array substrate far away from the first electrode.
Specifically, when the display panel is a display panel viewed at a specific viewing angle, the first region may be the entire display region. For the display panel watched under a specific visual angle, as the starting viewing angle of the watching is larger, when the visual angle of a user deviates, a larger color deviation can occur, and by setting the surface of the first electrode of the display area, which is adjacent to the light-emitting function layer, and the surface of the array substrate, which is far away from the first electrode, to have a first set included angle, when the user watches the display panel at the specific visual angle, the light-emitting angle of the display panel is consistent with or close to the angle of the user watching the display panel, which is equivalent to watching the display panel at a 0 visual angle or a smaller visual angle, and when the user watches the visual angle, which has a certain deviation relative to the 0 visual angle, the user is ensured to watch the display panel at the smaller visual angle, the color deviation of the display panel is improved, and the display effect of the display panel at the specific visual angle is improved.
In addition, for the display panel with the bending area, the first area can be set as the bending area, and since the bending area has a certain angle deviation relative to the light emitting direction of the plane area, when the display panel is viewed at a larger viewing angle, the chromaticity difference exists between the bending area and the plane area. The surface of the first electrode of the bending area, which is close to the light-emitting function layer, and the surface of the array substrate, which is far away from the first electrode, form a first set included angle, so that the light-emitting direction of the bending area is consistent with or close to that of the plane area, the chromaticity difference between the bending area and the plane area is improved, and the color cast of the display panel is improved.
The scheme of the embodiment is described below with reference to the specific drawings:
fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, fig. 2 is a cross-sectional view taken along a direction A1a2 in fig. 1, and referring to fig. 1 and fig. 2, a display panel 19 includes a display area 11, the display area 11 includes an array substrate 101, a first electrode 102, a light-emitting functional layer 103, and a second electrode 104 sequentially stacked on a surface of the array substrate 101;
the surface of the first electrode 102 of the first region 12 adjacent to the light-emitting functional layer 103 and the surface of the array substrate 101 away from the first electrode 102 have a first set included angle, the first set included angle is greater than zero and less than ninety degrees, and the first region 12 is the display region 11.
Specifically, for the display panel 19 viewed at a specific viewing angle, since the initial viewing angle of viewing is large, when the viewing angle of a user is shifted, a large color shift occurs, by arranging the surface of the first electrode 102 of the display area 11 adjacent to the light-emitting functional layer 103 and the surface of the array substrate 101 away from the first electrode 102 to have a first set angle, when the user views the display panel 19 at a specific viewing angle, the light-emitting angle of the display panel 19 is identical or close to the angle at which the user views the display panel 19, which is equivalent to viewing the display panel at a viewing angle of 0 or less, when the display panel is used for watching a certain offset of the viewing angle relative to the specific viewing angle, the display panel is guaranteed to be watched by a user at a smaller viewing angle, the color offset of the display panel is improved, and the display effect of the display panel 19 at the specific viewing angle is improved.
It should be noted that, referring to fig. 2, a first set included angle b between the surface of the first electrode 102 of the display area 11, which is adjacent to the light-emitting functional layer 103, and the surface of the array substrate 101, which is away from the first electrode 102, may be determined according to a specific viewing angle a viewed by a user, and the embodiment is not particularly limited. Illustratively, the value range of the first set included angle b may be (a-c) - (a + c), where a is greater than zero and less than 90 degrees, and c is greater than 0. The value of c may be determined according to the display characteristics of the display panel, and for example, c may be set to 0 degree or more and less than or equal to 5 degrees, so long as it is ensured that the color shift of the display panel is small or no color shift when the value range of the first set included angle b is (a-c) - (a + c). Preferably, c is zero, in which case, the first set included angle b is equal to a, and when the user views the display panel at the specific viewing angle a, the line of sight of the user is perpendicular to the display surface of the display panel, which is equivalent to viewing the display panel at a zero viewing angle.
Alternatively, fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention, fig. 4 is a cross-sectional view taken along a direction A3a4 in fig. 3, referring to fig. 3 and fig. 4, a display area 11 includes a second area 14 and a bending area 15 located on at least one side of the second area 14, and the first area is the bending area 15;
in the bending region 15 and along the direction in which the second region 14 points to the bending region 15, the perpendicular distance between the surface of the first electrode 102 adjacent to the light emitting function layer 103 and the surface of the array substrate 101 away from the first electrode 102 becomes gradually larger.
For example, as shown in fig. 3 and fig. 4, since the angle of light emitted from the bending region 15 is different from the angle of light emitted from the second region 14, the chromaticity difference exists between the display content in the bending region 15 and the second region 14 as viewed by a user, and the vertical distance between the surface of the first electrode 102 adjacent to the light-emitting functional layer 103 and the surface of the array substrate 101 away from the first electrode 102 is gradually increased in a direction (e.g., in a positive X direction) in the bending region 15 along the second region 14 toward the bending region 15 (e.g., for the bending region 15 on the right side of the second region 14), so that the angle of light emitted from the bending region 15 is consistent with or close to the angle of light emitted from the second region 14, and thus when the user views at a specific viewing angle, the chromaticity difference between the bending region 15 and the second region 14 is smaller, and the display effect is improved.
It should be noted that, the first set included angle between the surface of the first electrode 102 of the bending region 15, which is adjacent to the light-emitting functional layer 103, and the surface of the array substrate 101, which is away from the first electrode 102, may be determined according to the bending angle of the bending region 15, and the embodiment is not limited in particular.
Alternatively, fig. 5 is a further cross-sectional view along the direction A3a4 in fig. 3, and referring to fig. 3 and fig. 5, a surface of the first electrode 102 adjacent to the light-emitting functional layer 103 in the second region 14 and a surface of the array substrate 101 away from the first electrode 102 have a second set included angle, and the second set included angle is greater than zero and less than ninety degrees.
In particular, for a display panel 19 having a bending region 15, when the display panel 19 is applied to a scene of a specific viewing angle, by arranging the surface of the first electrode 102 adjacent to the light-emitting functional layer 103 in the second region 14 to have a second set included angle with the surface of the array substrate 101 away from the first electrode 102, when the user views the display panel 19 at a specific viewing angle, the light-emitting angle of the second region 14 is identical or close to the angle at which the user views the display panel 19, which is equivalent to viewing the display panel at a viewing angle of 0 or less, when the display panel is used for watching a certain offset of the visual angle relative to a specific visual angle, which is equivalent to a certain offset relative to a 0 visual angle, the display panel is ensured to be watched by a user with a smaller visual angle, the color cast is improved, meanwhile, the small chromaticity difference between the bending region 15 and the second region 14 can be ensured, and the display effect of the display panel 19 at a specific viewing angle is further improved.
Optionally, referring to fig. 2, a first included angle is formed between a surface of the first electrode 102 in the first region 12, which is adjacent to the light-emitting functional layer 103, and a surface of the first electrode which is far away from the light-emitting functional layer 103, and the first included angle is greater than zero and less than or equal to a first set included angle.
Specifically, since the preparation process of the first electrode 102 is simple and does not affect the structures such as the driving circuit and the light emitting layer, and the surface of the first electrode 102 adjacent to the light emitting functional layer 103 and the surface far away from the light emitting functional layer 103 form a first included angle, the color cast of the display panel 19 is improved to be small, the difficulty of the preparation process is reduced, the performance of the structures such as the light emitting layer is not affected, and the display panel is ensured to have high display performance.
Alternatively, fig. 6 is a cross-sectional view taken along a direction A1a2 in fig. 1, referring to fig. 6, a surface of the array substrate 101 of the first region 12 adjacent to the first electrode 102 and a surface thereof away from the first electrode 102 have a second included angle, and the second included angle is greater than zero and less than or equal to the first set included angle.
Specifically, the array substrate 101 has the planarization layer, the insulating layer and other film layers, which have less influence on the light emitting performance of the display panel and are easy to realize thickness adjustment during manufacturing, and the surface of the array substrate 101 adjacent to the first electrode 102 and the surface far away from the first electrode 102 have the second included angle, so that the display panel 19 is ensured to have smaller color cast, the difficulty of the manufacturing process is reduced, and the display panel is ensured to have higher display performance.
It should be noted that a set included angle between the surface of the first electrode 102 adjacent to the light-emitting function layer 103 and the surface of the array substrate 101 away from the first electrode 102 can be achieved by independently adjusting the thickness of the first electrode 102 or independently adjusting the thickness of the array substrate 101, or a manner of simultaneously adjusting the first electrode 102 and the array substrate 101 may also be adopted, which is not limited in this embodiment.
Optionally, fig. 7 is a further cross-sectional view along a direction A1a2 in fig. 1, referring to fig. 7, a first included angle is formed between a surface of the first electrode 102 adjacent to the light-emitting functional layer 103 and a surface away from the light-emitting functional layer 103, a second included angle is formed between a surface of the array substrate 101 adjacent to the first electrode 102 and a surface away from the first electrode 102, a sum of the first included angle and the second included angle is a first set included angle, and the first set included angle can be obtained by adjusting the first included angle and the second included angle, so that the adjustment of the first set included angle has more ways to match more manufacturing processes.
Optionally, fig. 8 is a schematic structural diagram of an array substrate according to an embodiment of the present invention, and fig. 9 is a schematic structural diagram of another array substrate according to an embodiment of the present invention, and referring to fig. 8 and 9, the array substrate 101 includes a substrate 1011, a driving circuit layer 1012 disposed on a surface of the substrate 1011, and a planarization layer 1013 covering the driving circuit layer 1012;
as shown in fig. 8, the surface of the substrate base plate 1011 of the first region adjacent to the driving circuit layer 1012 has a third included angle with the surface far away from the driving circuit layer 1012; and/or, as shown in fig. 9, a surface of the planarization layer 1013 away from the driving circuit layer 1012 in the first region has a fourth angle with a surface adjacent to the driving circuit layer 1012;
the third included angle is greater than or equal to zero and less than or equal to the second included angle, and the fourth included angle is greater than or equal to zero and less than or equal to the second included angle.
Specifically, the array substrate 101 includes a substrate 1011, a driving circuit layer 1012 and a planarization layer 1013, since the driving circuit layer 1012 has structures such as transistors and wires, if the driving circuit layer 1012 is made to be an inclined structure, the driving function of the driving circuit layer 1012 will be affected, the substrate 1011 plays a supporting role, the planarization layer 1013 plays a planarization role, and the manufacturing process is simple, by setting the substrate 1011 to be an inclined structure, that is, the surface of the substrate 1011 adjacent to the driving circuit layer 1012 and the surface far away from the driving circuit layer 1012 have a third included angle; and/or the planarization layer 1013 is arranged in an inclined structure, that is, a fourth included angle is formed between the surface of the planarization layer 1013 in the first region, which is far away from the driving circuit layer 1012, and the surface of the array substrate 101, which is near the first electrode 102, and the surface of the array substrate 101, which is far away from the first electrode 102, so that a second included angle is formed between the surface of the first electrode 102, which is near the light-emitting function layer 103, and the surface of the array substrate 101, which is far away from the first electrode 102, so that a first set included angle is formed between the surface of the first electrode 102, which is near the light-emitting function layer 103, and the surface of the array substrate 101, which is far away from the first electrode 102.
Specifically, by setting the third included angle to be greater than or equal to zero and less than or equal to the second included angle, and the fourth included angle to be greater than or equal to zero and less than or equal to the second included angle, the array substrate can be formed to have the second included angle between the surface adjacent to the first electrode and the surface far away from the first electrode in a manner of independently adjusting the thickness of the substrate base (the third included angle is equal to the second included angle) or in a manner of independently adjusting the thickness of the planarization layer (the fourth included angle is equal to the second included angle), or a manner of jointly adjusting the substrate and the planarization layer (the third included angle is less than the second included angle, the fourth included angle is less than the second included angle, and the sum of the third included angle and the fourth included angle is the second included angle) can be adopted to form the second included angle between the surface adjacent to the first electrode and the surface far away from the first electrode, so that the implementation manner of the second included angle is more diversified, thereby different implementation manners can be selected according to process requirements and the like, the process difficulty is reduced.
Optionally, fig. 10 is a schematic structural diagram of a first electrode according to an embodiment of the present invention, referring to fig. 10, the first electrode 102 includes a reflective layer 1021 and a transparent conductive layer 1022, the reflective layer 1021 is disposed on a side of the transparent conductive layer 1022 adjacent to the array substrate;
the surface of the reflection layer 1021 in the first area, which is adjacent to the light-emitting functional layer, and the surface far away from the light-emitting functional layer form a fifth included angle, and the fifth included angle is larger than zero and smaller than or equal to the first set included angle.
For example, the display panel 19 may be an OLED (Organic Light-Emitting Diode) display panel, the first electrode 102 may be an anode, the material of the reflective layer 1021 may be silver, the transparent conductive layer 1022 may be indium tin oxide, the transparent conductive layer 1022 has a function of providing holes for the Light-Emitting function layer in addition to a conductive function, and if the transparent conductive layer 1022 is made into an inclined structure, the function of providing holes for the Light-Emitting function layer by the transparent conductive layer 1022 is affected, so that the display effect is affected. And through setting up reflection stratum 1021 to be the slope structure, the surface that reflection stratum 1021 is close to the functional layer of giving out light and the surface far away from the functional layer of giving out light has the fifth contained angle promptly, can not influence display panel's display function. Meanwhile, the preparation process of the reflecting layer 1021 can be a sputtering process, and the thickness of the film layer can be changed in a gradient manner by controlling the process; the gradient film can also be prepared by the evaporation process (namely, the evaporation substrate is controlled not to rotate, the thickness of the film with gradient change can be regulated and controlled by regulating and controlling the distance between the crucible and the substrate, so that the inclined angle of the film is determined), the preparation process is simpler, and the cost is saved.
In addition, the fifth included angle is larger than zero and smaller than or equal to the first set included angle, so that the surface of the first electrode, which is adjacent to the light-emitting function layer, and the surface of the array substrate, which is far away from the first electrode, can have the first set included angle through a mode of independently adjusting the reflection layer of the first electrode (the fifth included angle is equal to the first set included angle), and the surface of the first electrode, which is adjacent to the light-emitting function layer, and the surface of the array substrate, which is far away from the first electrode, can also have the first set included angle through a mode of jointly adjusting the reflection layer and other film layers (the fifth included angle is smaller than the first set included angle), so that the implementation mode of the first set included angle is more diversified, different implementation modes can be selected according to process requirements and the like, and the process difficulty is reduced. Optionally, the thickness of the reflective layer 1021 is greater than or equal to 60 nm.
Through setting up the thickness of reflection stratum 1021 and being greater than or equal to 60nm, can guarantee that reflection stratum 1021 is greater than or equal to 90% to the reflectivity of light for reflection stratum 1021 reflects the second electrode better with the light of the functional layer outgoing of giving out light, and through the second electrode outgoing, thereby improved display panel's light-emitting rate, further promoted display effect.
Optionally, the thickness range of the reflective layer 1021 is 90-110nm, so that the reflective layer 1021 has a relatively large reflectivity to light, and the display panel has a relatively high light extraction rate, and meanwhile, the display panel has a relatively small thickness, and the development trend of the display panel to be light and thin is met. Illustratively, the thickness of the reflective layer 1021 may be set to 100nm or the like.
Fig. 11 is a schematic structural diagram of a display device according to an embodiment of the present invention, and the display device 20 includes the display panel 19 according to any embodiment of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (6)
1. A display panel, comprising:
the display area comprises an array substrate, and a first electrode, a light-emitting functional layer and a second electrode which are sequentially arranged on the surface of the array substrate in a stacked mode;
the display area comprises a first area, a first set included angle is formed between the surface, adjacent to the light-emitting functional layer, of the first electrode of the first area and the surface, far away from the first electrode, of the array substrate, and the first set included angle is larger than zero and smaller than ninety degrees;
the display area comprises a second area and a bending area positioned on at least one side of the second area, and the first area is the bending area:
in the bending region and along the direction in which the second region points to the bending region, the vertical distance between the surface of the first electrode adjacent to the light-emitting function layer and the surface of the array substrate far away from the first electrode is gradually increased;
the surface of the first electrode of the second area, which is adjacent to the light-emitting functional layer, and the surface of the array substrate, which is far away from the first electrode, form a second set included angle, and the second set included angle is greater than zero and less than ninety degrees;
the first electrode comprises a reflecting layer and a transparent conducting layer, and the reflecting layer is arranged on one side of the transparent conducting layer, which is adjacent to the array substrate;
a fifth included angle is formed between the surface, close to the light-emitting functional layer, of the reflecting layer of the first area and the surface, far away from the light-emitting functional layer, of the reflecting layer, and the fifth included angle is larger than zero and smaller than the first set included angle;
the surface of the first electrode, which is close to the light-emitting functional layer, and the surface of the first electrode, which is far away from the light-emitting functional layer, form a first included angle, the surface of the array substrate, which is close to the first electrode, and the surface of the array substrate, which is far away from the first electrode, form a second included angle, and the sum of the first included angle and the second included angle is a first set included angle, wherein the first included angle is larger than zero and smaller than the first set included angle, and the second included angle is larger than zero and smaller than the first set included angle;
the surface of the transparent conductive layer adjacent to the light-emitting functional layer is parallel to the surface far away from the light-emitting functional layer.
2. The display panel according to claim 1, characterized in that:
the first area is the display area.
3. The display panel according to claim 2, characterized in that:
the array substrate comprises a substrate, a driving circuit layer arranged on the surface of the substrate and a planarization layer covering the driving circuit layer;
the surface of the substrate base plate of the first area, which is close to the driving circuit layer, and the surface far away from the driving circuit layer form a third included angle; and/or the surface of the planarization layer of the first region, which is far away from the driving circuit layer, and the surface of the planarization layer, which is close to the driving circuit layer, form a fourth included angle;
the third included angle is greater than or equal to zero and less than or equal to the second included angle, and the fourth included angle is greater than or equal to zero and less than or equal to the second included angle.
4. The display panel according to claim 1, characterized in that:
the thickness of the reflecting layer is greater than or equal to 60 nm.
5. The display panel according to claim 1, characterized in that:
the thickness of the reflecting layer ranges from 90 nm to 110 nm.
6. A display device characterized by comprising the display panel according to any one of claims 1 to 5.
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| CN201910631960.0A CN110212012B (en) | 2019-07-12 | 2019-07-12 | Display panel and display device |
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| CN110212012B true CN110212012B (en) | 2022-02-25 |
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| CN112038493B (en) * | 2020-08-17 | 2022-05-31 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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