WO2021008152A1

WO2021008152A1 - Display panel and display device

Info

Publication number: WO2021008152A1
Application number: PCT/CN2020/079745
Authority: WO
Inventors: 刘孟宇
Original assignee: 昆山国显光电有限公司
Priority date: 2019-07-12
Filing date: 2020-03-17
Publication date: 2021-01-21
Also published as: CN110379934A; CN110379934B

Abstract

Disclosed in the embodiments of the present application are a display panel and a display device. The display panel comprises: a substrate; a plurality of light-emitting units disposed on the substrate; and an encapsulation layer disposed on a side of the plurality of light-emitting units away from the substrate and covering the plurality of light-emitting units; wherein a set included angle is defined between the substrate and a surface of the encapsulation layer away from the plurality of light-emitting units, and the included angle is greater than 0 degree and less than or equal to 90 degrees.

Description

Display panel and display device

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office with an application number of 201910631954.5 on July 12, 2019. The entire content of this application is incorporated into this application by reference.

Technical field

The embodiments of the present application relate to the field of display technology, for example, to a display panel and a display device.

Background technique

With the development of display technology and the improvement of people's living standards, the requirements for the display effect of the display panel are getting higher and higher.

However, the display panel has a role bias, so improving the color cast of the display panel becomes an urgent problem in the industry.

Summary of the invention

The present application provides a display panel and a display device, which reduce the chromaticity difference between the two sides of the display panel and improve the display effect of the display panel.

In an embodiment, an embodiment of the present application provides a display panel, including:

A substrate; a plurality of light emitting units arranged on the substrate, and an encapsulation layer arranged on a side of the plurality of light emitting units away from the substrate and covering the plurality of light emitting units;

The surface of the encapsulation layer away from the plurality of light-emitting units has a set included angle with the substrate, and the included angle is greater than 0 degrees and less than or equal to 90 degrees.

In an embodiment, the embodiment of the present application further provides a display device, including the display panel described in any embodiment of the present application.

In the embodiment of the present application, the surface of the encapsulation layer away from the light-emitting unit and the substrate have a set angle, so that one side of the two opposite sides of the display panel points to the other side (user viewing side). The thickness of the layer gradually increases, and the distance that the light emitted by the light-emitting unit travels in the packaging layer gradually increases. The distance in the air is gradually reduced relative to the display panel that is not inclined on the surface of the packaging layer away from the substrate. The refractive index of the layer is greater than the refractive index of air, which increases the optical path of the light emitted by the light-emitting unit 20 adjacent to the user's viewing side to reach the human eye, and reduces the optical path difference of the light emitted from the two opposite sides of the display panel to the human eye , So as to reduce the chromaticity difference on both sides, improve the display effect of the display panel. And the thickness of the encapsulation layer gradually changes along the direction in which one of the two opposite sides of the display panel points to the other side, ensuring that the light emitted from the two sides of the display panel and the central area of the display panel have The smaller optical path difference ensures that the two sides of the display panel and the central area have a smaller chromaticity difference.

Description of the drawings

Figure 1 is a schematic diagram of a display panel;

FIG. 2 is a schematic diagram of a display panel provided by an embodiment of the present application;

3 is a schematic diagram of another display panel provided by an embodiment of the present application;

4 is a schematic diagram of another display panel provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of still another display panel provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of still another display panel provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a display device provided by an embodiment of the present application.

Detailed ways

The application will be described below with reference to the drawings and embodiments. The embodiments described here are only used to explain the application, but not to limit the application. For ease of description, the drawings only show a part of the structure related to the present application, but not all of the structure.

Just as the display panel mentioned in the related art has the phenomenon of large visual role deviation, the display panel with more serious visual role deviation in the related technology includes the display panel viewed at a specific angle, such as the car display. The viewing angle is large, and usually only viewed from one side. The distance between the two sides of the display panel (the side on the user’s viewing side and the side far from the user’s viewing side) and the human eye is quite different, that is, the two sides The light path to the human eye is different, and the brightness attenuation of red, green, and blue light varies with the light path under large viewing angles, resulting in different degrees of color shift on the two sides, which affects the display effect.

Exemplarily, FIG. 1 is a schematic diagram of a display panel. Referring to FIG. 1, the display panel includes a substrate 10 and a light-emitting unit 20 disposed on the substrate 10. When the human eye views the display screen on the right side of the display panel, the display panel The distance of the light emitted from the left side to the human eye is greater than the distance of the light emitted from the right side of the display panel to the human eye. The optical path difference between the two is large, resulting in different degrees of color shift on the left and right sides, which affects the display effect.

Based on the foregoing problems, this embodiment provides the following solutions:

This embodiment provides a display panel. FIG. 2 is a schematic diagram of a display panel provided by an embodiment of the present application. Referring to FIG. 2, the display panel includes:

A substrate 10, a plurality of light emitting units 20 arranged on the substrate 10, and an encapsulation layer 30 arranged on a side of the plurality of light emitting units 20 away from the substrate and covering the plurality of light emitting units 20;

The surface 310 of the encapsulation layer 30 away from the plurality of light-emitting units 20 has a predetermined included angle with the substrate 10, and the included angle is greater than 0 degrees and less than or equal to 90 degrees.

The substrate 10 may be an array substrate that drives the light-emitting unit 20 to emit light, and includes a base substrate and a driving circuit layer disposed on a side of the base substrate adjacent to the light-emitting unit 20. The encapsulation layer 30 may be a thin-film encapsulation layer, which is used to block water and oxygen from entering the inside of the display panel and prevent the water and oxygen from corroding the light-emitting unit 20.

Optionally, the optical path is the product of the propagation distance of the light and the refractive index of the medium through which the light passes. The light path from the light emitting unit 20 to the human eye is the sum of the light path traveled by the light inside the display panel and the light path traveled in the air, namely n1*L1+n2*L2, where n1 is the refraction of air N2 is the refractive index of the encapsulation layer 30, L1 is the distance that light travels in the air, and L2 is the distance that light travels inside the display panel. By setting the surface 310 of the encapsulation layer 30 away from the light-emitting unit 20 to have a set angle with the substrate 10, one of the two opposite sides along the display panel points to the direction X of the other side (the user viewing side), The thickness of the encapsulation layer 30 gradually increases, and the light emitted by the light-emitting unit 20 travels in the encapsulation layer 30 gradually. The distance L1 that travels in the air is not inclined to the surface 310 of the encapsulation layer 30 away from the substrate 10. The display panel is gradually reduced. Since the refractive index n2 of the encapsulation layer 30 is greater than the refractive index n1 of air, the optical path of the light emitted by the light-emitting unit 20 adjacent to the user's viewing side to reach the human eye is increased, and the emission from the two opposite sides is reduced. The optical path difference of the light reaching the human eye, thereby reducing the chromaticity difference on both sides, and improving the display effect of the display panel. And the thickness of the encapsulation layer 30 gradually changes along the direction X in which one of the two opposite sides of the display panel points to the other side, ensuring that the light emitted from the two sides of the display panel and the central area of the display panel Both have a small optical path difference, which ensures that the two sides of the display panel and the central area have a small chromaticity difference.

Optionally, along a direction in which one side of the two opposite sides of the display panel points to the other side, the thickness of the encapsulation layer gradually increases.

In addition, during the production of the light-emitting unit 20, due to manufacturing process differences, the film thickness of the light-emitting unit 20 of the same light-emitting color may be uneven, that is, the surface of the light-emitting unit 20 of the same light-emitting color away from the substrate 10 is uneven, resulting in different positions of the display panel. The light-emitting units 20 of the same color emit different colors, that is, uneven display of the display panel. By setting the surface 310 of the encapsulation layer 30 away from the light-emitting unit 20 to have a set angle with the substrate 10, that is, the surface 310 of the encapsulation layer 30 away from the light-emitting unit 20 is a plane, and the surface adjacent to the light-emitting unit 20 is uneven with the surface of the light-emitting unit 20. As a result, the encapsulation layer 30 can compensate for the unevenness of the film thickness of the light-emitting unit 20 to a certain extent, thereby improving the display unevenness of the display panel to a certain extent.

Optionally, since the thickness of the encapsulation layer 30 is larger than that of the light-emitting unit 20, the unevenness of the surface of the light-emitting unit 20 does not affect the direction of the encapsulation layer 30 along one of the two opposite sides of the display panel. The direction X of the other side has a tendency to gradually increase in thickness. In addition, the size of the preset included angle can be determined according to the magnitude of the chromaticity difference between the two opposite sides of the display panel, which is not limited in this embodiment, as long as the chromaticity difference between the two opposite sides of the display panel can be reduced. OK.

FIG. 3 is a schematic diagram of another display panel provided by an embodiment of the present application. Optionally, referring to FIG. 3, the encapsulation layer 30 includes at least one inorganic layer 31 and at least one organic layer 32 that are stacked;

The surface of the at least one organic layer 32 away from the substrate 10 and the surface adjacent to the substrate 10 have a first included angle, and the first included angle is greater than 0 degrees and less than or equal to the set included angle. Wherein, the surface of any one of the at least one organic layer 32 away from the substrate 10 and the surface of the adjacent substrate 10 have a first angle; or all the organic layers 32 in the at least one organic layer 32 are away from the surface of the substrate 10 The surface has a first angle with the surface adjacent to the substrate 10.

Optionally, the encapsulation layer includes at least one inorganic layer 31 and at least one organic layer 32 that are stacked; in the case where the number of the at least one organic layer 32 is multiple, the multiple organic layers 32 The surface of the organic layer 32 with the largest vertical distance from the substrate 10 has a first included angle with a surface adjacent to the substrate 10, the first included angle is greater than 0 degrees and less than or equal to the set included angle . Optionally, as shown in FIG. 3, the uppermost organic layer 32 of the at least one organic layer 32 may have a first angle between the surface away from the substrate 10 and the surface adjacent to the substrate 10.

Optionally, the first included angle of each organic layer 32 is less than or equal to the set included angle.

Optionally, the first included angle of each organic layer 32 is equal, and less than or equal to the set included angle.

Among them, the inorganic layer 31 mainly functions to block water and oxygen, and the organic layer 32 is used to buffer the stress received by the inorganic layer 31 and improve the impact resistance of the display panel. Since the organic layer 32 can be formed by inkjet printing and other processes, and the thickness of the organic layer 32 is relatively thick, its process controllability is good, and thickness control is easier to achieve. By arranging at least one organic layer 32 away from the surface of the substrate 10 and adjacent The surface of the substrate 10 has a first included angle, which reduces the optical path difference of the light emitted from the two opposite sides of the display panel to the human eye, thereby reducing the chromaticity difference on the two sides and improving the display effect of the display panel. Reduce the process difficulty.

Optionally, in this embodiment, the first included angle is set to be greater than 0 degrees and less than or equal to the set included angle, so that when the encapsulation layer 30 includes a layer of organic layer 32, the first included angle can be set to be equal to the set included angle; When the encapsulation layer 30 includes two or more organic layers 32, the organic layer of each organic layer 32 or certain organic layers 32 with the largest vertical distance from the substrate can be arranged to be away from the surface of the substrate 10 The surface adjacent to the substrate 10 has a first included angle, and the first included angle is smaller than the set included angle. The multiple organic layers 32 cooperate to realize that the surface 310 of the packaging layer 30 away from the light-emitting unit 20 has a set included angle with the substrate 10, so that each Each organic layer 32 can have a small first included angle, which can reduce the process difficulty of preparing each organic layer 32.

In addition, the first angles of each organic layer 32 can be set to be equal, so that each organic layer 32 can be prepared with the same process parameters, which reduces the process difficulty.

FIG. 4 is a schematic diagram of another display panel provided by an embodiment of the present application. Referring to FIG. 4, when the chromaticity difference between the two sides of the display panel is large, and the compensation requirement cannot be met by adjusting the organic layer 32, the inorganic The surface of the layer 32 away from the substrate and the surface adjacent to the substrate 10 have a third angle, so as to ensure that the surface 310 of the encapsulation layer 30 away from the light-emitting unit 20 and the substrate 10 have a set angle, and to ensure that the chromaticity difference on both sides of the display panel is reduced To enhance the display effect of the display panel.

Optionally, the encapsulation layer 30 includes at least one inorganic layer 31 and at least one organic layer 32 that are stacked; a third clamp is formed between the surface of the at least one inorganic layer 31 away from the substrate 10 and the surface adjacent to the substrate 10. angle.

Optionally, any one or all of the inorganic layers 31 of the at least one inorganic layer 31 have a third angle between the surface away from the substrate 10 and the surface adjacent to the substrate 10.

Optionally, the encapsulation layer 30 includes at least one inorganic layer 31 and at least one organic layer 32 arranged in a stack; the number of the at least one inorganic layer 31 is multiple, and the number of the multiple inorganic layers is between the substrate 10 The inorganic layer 31 with the largest vertical distance (that is, the outermost inorganic layer) has a third angle between the surface away from the substrate 10 and the surface adjacent to the substrate 10.

Optionally, the third included angle of each inorganic layer 31 is less than or equal to the set included angle.

Optionally, the third included angle of each inorganic layer 31 is equal, and less than or equal to the set included angle.

Optionally, the refractive index of the organic layer 32 is 1.45-1.95, and the refractive index of the inorganic layer 31 is 1.45-1.6.

Optionally, film layers such as a light extraction layer are also included between the encapsulation layer 30 and the light-emitting unit 20. By setting the refractive index of the organic layer 32 to be 1.45-1.95 and the refractive index of the inorganic layer 31 to be 1.45-1.6, the encapsulation layer The refractive index of 30 is matched with other film layers to ensure that the display panel has a higher light extraction efficiency, while ensuring that the organic layer 32 and the inorganic layer 31 have a larger refractive index, thereby ensuring that the adjustment of the organic layer 32 or the inorganic layer 31 In the case of thickness, a smaller thickness change can have a greater adjustment effect on the optical path, reduce the thickness adjustment amount of the organic layer 32 or the inorganic layer 31, and reduce the process difficulty.

FIG. 5 is a schematic diagram of another display panel provided by an embodiment of the present application. Optionally, referring to FIG. 5, the encapsulation layer 30 includes a first inorganic layer 301, a first organic layer 302, and a second inorganic layer 303 stacked in sequence. , The first inorganic layer 301 is disposed on the side of the first organic layer 302 adjacent to the substrate 10;

A set angle is formed between the surface of the first organic layer 302 away from the substrate 10 and the substrate 10.

The second inorganic layer 303 is disposed on the side of the first organic layer 302 away from the substrate 10.

Among them, the first inorganic layer 301 and the second inorganic layer 303 mainly play a role of blocking water and oxygen. The first organic layer 302 is used to buffer the stress between the first inorganic layer 301 and the second inorganic layer 303. It includes a first inorganic layer 301, a first organic layer 302, and a second inorganic layer 303. The surface of the first organic layer 302 away from the substrate 10 has a set angle with the substrate 10 to ensure that the chromaticity difference on both sides of the display panel is reduced , While improving the display effect of the display panel and ensuring that the encapsulation layer 30 has a better encapsulation effect, it also ensures that the encapsulation layer 30 has a thinner thickness, thereby ensuring that the display panel has a thinner thickness, which is in line with the thinness of the display panel. development trend.

Optionally, the thickness of the first organic layer 302 is greater than or equal to 6 microns.

Optionally, since the first organic layer 302 is mainly used to buffer the stress between the first inorganic layer 301 and the second inorganic layer 303, when the thickness of the first organic layer 302 is too thin, the stress buffering effect is poor. The thickness of an organic layer 302 is greater than or equal to 6 micrometers, which ensures that the first organic layer 302 has a better stress buffering effect and improves the impact resistance of the display panel.

Optionally, referring to FIG. 5, the light-emitting unit 20 includes a first electrode 21, a light-emitting functional layer 22, and a second electrode 23 that are stacked, and the first electrode 21 is provided on a side of the light-emitting functional layer 22 adjacent to the substrate 10;

The second electrode 23 is arranged on a side of the light-emitting function layer 22 away from the substrate 10;

The surface of at least one organic layer 32 away from the substrate 10 is also provided with a microcavity compensation organic layer 33; the display panel includes a first area 101 and a second area 102. Along a direction perpendicular to the substrate 10, the light emitting unit 20 in the first area 101 The thickness of is smaller than the thickness of the light-emitting unit 20 in the second region 102, and the thickness of the microcavity compensation organic layer 33 in the first region 101 is greater than the thickness of the microcavity compensation organic layer 33 in the second region 102. Wherein, any organic layer 32 or all organic layers 32 of at least one organic layer 32 may be provided with a microcavity compensation organic layer 33 on the surface away from the substrate 10.

Optionally, the light-emitting unit 20 includes a first electrode 21, a light-emitting functional layer 22, and a second electrode 23 that are stacked, and the first electrode 21 is provided on a side of the light-emitting functional layer 22 adjacent to the substrate 10;

In the case where the number of the at least one organic layer 32 is multiple layers, the organic layer 32 (that is, the outermost organic layer) with the largest vertical distance between the multiple organic layers 32 and the substrate 10 is far away from the substrate 10 The surface is provided with a microcavity compensation organic layer 33.

Optionally, the first electrode 21, the light-emitting functional layer 22, and the second electrode 23 form a microcavity. The sum of the thicknesses of the first electrode 21, the light-emitting functional layer 22, and the second electrode 23 is equal to the length of the microcavity, and the light will be in the microcavity. The micro-cavity effect is generated in the micro-cavity, so that the light of a specific wavelength is enhanced in the direction perpendicular to the display panel, and the light-emitting unit 20 is guaranteed to have a strong light intensity. When the length of the microcavity changes, the peak wavelength of the light emission spectrum of the light emitting unit 20 will shift, that is, the color coordinates of the light emitted by the light emitting unit 20 will change. Therefore, when the thickness of different light-emitting units 20 of the same light-emitting color is different due to manufacturing process differences, the microcavity lengths of different light-emitting units 20 of the same light-emitting color are different, resulting in the color of light emitted by different light-emitting units 20 of the same color. The coordinates are different, causing uneven display on the display panel.

Since the film layer on the light-emitting side of the light-emitting unit 20 has a certain adjustment effect on the light-emitting spectrum of the light-emitting unit 20, the microcavity compensation organic layer 33 is provided, and the thickness of the microcavity compensation organic layer 33 is smaller in the area where the thickness of the light-emitting unit 20 is smaller. The thickness of the microcavity compensation organic layer 33 is small in the area where the thickness of the light emitting unit 20 is large, so that the microcavity compensation organic layer 33 can compensate the spectral shift of the light emitting unit 20 to a certain extent, and can improve the display panel's performance to a certain extent. The display is uneven.

Optionally, if the thickness difference between the light-emitting unit 20 of the first region 101 and the light-emitting unit 20 of the second region 102 is n, and n is greater than zero, the microcavity compensation organic layer 33 of the first region 101 and the second region may be set The thickness difference of the microcavity compensation organic layer 33 of 102 is m, m is less than zero, and the absolute value of m is 10-1000 times of n. For example, the absolute value of m can be set to 100-1000 times of n, such as 200 Times, 300 times, 500 times, 800 times, etc. It is found through simulation experiments that this arrangement can significantly improve the unevenness of the display caused by the uneven thickness of the light-emitting unit 20.

Optionally, FIG. 5 only exemplarily shows the first area and the second area. The first area and the second area only represent two areas with different thicknesses of the light-emitting units in the display panel. The first area and the second area may For any area of the display panel with different thicknesses of the light emitting units, the display panel may include a first area and a second area, or may include more than one first area and more than one second area, which is not limited in this embodiment.

Optionally, FIG. 5 only exemplarily shows that the encapsulation layer 30 includes three layers of the first inorganic layer 301, the first organic layer 302, and the second inorganic layer 303 and the position of the microcavity compensation organic layer 33. It is not a limitation of the present application. In other embodiments, when the encapsulation layer 30 includes multiple organic layers, a microcavity compensation organic layer 33 may be provided on the surface of any organic layer away from the substrate according to compensation needs.

Optionally, the microcavity compensation organic layer 33 and the at least one organic layer 32 use the same material.

With this arrangement, the microcavity compensation organic layer 33 can be formed by the same process as the organic layer 32, and the material cost can be reduced. Optionally, after the organic layer 32 is formed by the inkjet printing process, there is no need to replace the ink for inkjet printing, and the microcavity compensation organic layer 33 of unequal thickness is directly formed, thereby reducing the process steps.

6 is a schematic diagram of still another display panel provided by an embodiment of the present application. Optionally, referring to FIG. 6, the display panel further includes: a light extraction layer 40 disposed between the encapsulation layer 30 and the plurality of light emitting units 20, The surface of the take-out layer 40 away from the substrate 10 has a second included angle with the substrate 10, and the second included angle is greater than 0 degrees and less than or equal to 90 degrees.

Among them, the light extraction layer 40 is used to improve the light extraction efficiency of the display panel. When the chromaticity difference between the two sides of the display panel is large, and the compensation requirement cannot be met by adjusting the organic layer 32 alone, the surface of the light extraction layer 40 away from the substrate and the surface of the adjacent substrate 10 can also be arranged to have a second angle to ensure The optical path difference between the light emitted from the two sides of the display panel and the human eye is small, which ensures that the chromaticity difference between the two sides of the display panel is greatly reduced, and the display effect of the display panel is improved.

Optionally, the refractive index of the light extraction layer 40 is 1.3-2.

This arrangement enables the refractive index of the light extraction layer 40 to match the encapsulation layer 30, improves the light extraction efficiency of the display panel, and ensures that the light extraction layer 40 has a larger refractive index, thereby ensuring that the thickness of the light extraction layer 40 is adjusted. A smaller thickness change can have a greater adjustment effect on the optical path, reduce the thickness adjustment amount of the light extraction layer 40, and reduce the process difficulty.

This embodiment also provides a display device. FIG. 7 is a schematic structural diagram of a display device provided in an embodiment of the present application. Referring to FIG. 7, the display device 100 provided in this embodiment includes the display panel 200 provided in any of the foregoing embodiments.

Optionally, the display device 200 provided in the embodiment of the present application may be a display device such as a mobile phone, a wearable device with display function, a computer, etc. The display device 200 provided in the embodiment of the present application includes the display panel 200 proposed in any of the foregoing embodiments. It has the effect of the display panel 200 proposed in any of the above embodiments.

Claims

A display panel including:

Substrate

A plurality of light-emitting units arranged on the substrate, and

An encapsulation layer disposed on a side of the plurality of light-emitting units away from the substrate and covering the plurality of light-emitting units, and a surface of the encapsulation layer away from the plurality of light-emitting units has a set angle with the substrate, The included angle is greater than 0 degrees and less than or equal to 90 degrees.
The display panel of claim 1, wherein:

The encapsulation layer includes at least one inorganic layer and at least one organic layer that are stacked; the number of the at least one organic layer is multiple, and the number of the multiple organic layers is perpendicular to the substrate. The surface of the organic layer with the largest distance away from the substrate and the surface adjacent to the substrate have a first included angle, and the first included angle is greater than 0 degrees and less than or equal to the set included angle.
The display panel of claim 1, wherein:

The encapsulation layer includes at least one inorganic layer and at least one organic layer that are stacked;

The surface of the at least one organic layer away from the substrate and the surface adjacent to the substrate have a first included angle, and the first included angle is greater than 0 degrees and less than or equal to the set included angle.
3. The display panel according to claim 2 or 3, wherein: the first included angle of each organic layer is equal, and less than or equal to the set included angle.
3. The display panel of claim 2 or 3, wherein: the first included angle of each organic layer is less than or equal to the set included angle.
The display panel according to claim 1, wherein: the encapsulation layer comprises at least one inorganic layer and at least one organic layer that are stacked;

A third angle is formed between the surface of the at least one inorganic layer away from the substrate and the surface adjacent to the substrate.
The display panel of claim 3, wherein:

The encapsulation layer includes a first inorganic layer, a first organic layer, and a second inorganic layer stacked in sequence, and the first inorganic layer is disposed on a side of the first organic layer adjacent to the substrate;

The set angle is formed between the surface of the first organic layer away from the substrate and the substrate;

The second inorganic layer is disposed on a side of the first organic layer away from the substrate.
The display panel according to claim 7, wherein:

The thickness of the first organic layer is greater than or equal to 6 microns.
The display panel according to claim 2, wherein:

The light-emitting unit includes a first electrode, a light-emitting function layer, and a second electrode that are stacked and arranged. The first electrode is disposed on a side of the light-emitting function layer adjacent to the substrate, and the second electrode is disposed on the light-emitting function layer. The side of the functional layer away from the substrate;

The number of the at least one organic layer is multiple, and the organic layer with the largest vertical distance from the substrate among the multiple organic layers is away from the surface of the substrate and is provided with a microcavity compensation organic layer.
The display panel of claim 3, wherein:

The light-emitting unit includes a first electrode, a light-emitting function layer, and a second electrode that are stacked and arranged. The first electrode is disposed on a side of the light-emitting function layer adjacent to the substrate, and the second electrode is disposed on the light-emitting function layer. The side of the functional layer away from the substrate;

The surface of the at least one organic layer away from the substrate is further provided with a microcavity compensation organic layer.
The display panel according to claim 9 or 10, wherein the display panel comprises a first area and a second area, and in a direction perpendicular to the substrate, the thickness of the light emitting unit in the first area is less than that of the The thickness of the light-emitting unit in the second region, the thickness of the microcavity compensation organic layer in the first region is greater than the thickness of the microcavity compensation organic layer in the second region.
The display panel according to claim 9 or 10, wherein:

The microcavity compensation organic layer uses the same material as the at least one organic layer.
The display panel according to claim 2 or 3 or 6, wherein:

The refractive index of the at least one organic layer is 1.45 to 1.95, and the refractive index of the at least one inorganic layer is 1.45 to 1.6.
3. The display panel according to claim 1, wherein: along a direction in which one side of the two opposite sides of the display panel points to the other side, the thickness of the encapsulation layer gradually increases.
The display panel according to claim 1, further comprising:

A light extraction layer disposed between the encapsulation layer and the plurality of light emitting units, the surface of the light extraction layer away from the substrate has a second included angle with the substrate, and the second included angle is greater than 0 degrees And less than or equal to 90 degrees.
The display panel according to claim 15, wherein:

The refractive index of the light extraction layer is 1.3-2.
The display panel of claim 11, wherein:

The thickness difference between the light-emitting unit in the first region and the light-emitting unit in the second region is n, and the n is greater than 0. The microcavity compensation organic layer in the first region and the first region The thickness difference of the microcavity compensation organic layer in the two regions is m, the m is less than zero, and the absolute value of m is 10-1000 times the n.
The display panel according to claim 17, wherein:

The absolute value of m is 100-1000 times the n.
The display panel according to claim 9 or 10, wherein: the first electrode, the light-emitting function layer, and the second electrode form a microcavity, and the first electrode, the light-emitting function layer, and the first electrode The sum of the thickness of the two electrodes is equal to the length of the microcavity.
A display device comprising the display panel according to any one of claims 1-19.