CN219981443U

CN219981443U - Display panel and display device

Info

Publication number: CN219981443U
Application number: CN202222883793.9U
Authority: CN
Inventors: 杨博文; 肖一鸣; 朱雪婧; 姚远; 张浩瀚; 倪柳松
Original assignee: Vicino Technology Co ltd
Current assignee: Vicino Technology Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-11-07
Anticipated expiration: 2032-10-31

Abstract

The application discloses a display panel and a display device, wherein the display panel comprises: a substrate; the pixel definition layer is positioned on the substrate and comprises isolation parts and pixel openings formed by enclosing the isolation parts, and a light-emitting unit is arranged in each pixel opening; and the shading part is positioned at one side of the isolation part, which is away from the substrate, extends towards the pixel opening, and the orthographic projection of the shading part on the substrate and the orthographic projection part of the light emitting unit on the substrate overlap, so that the shading part can shade the surface of the light emitting unit, which is away from the substrate. According to the application, the shading part can shade the large-angle light rays emitted by at least part of the light emitting units, so that the problem that the light rays emitted by the light emitting units enter other adjacent light emitting units is solved, the problem that light mixing is easy to occur between two adjacent light emitting units is further solved, and the display effect of the display panel can be improved.

Description

Display panel and display device

Technical Field

The application relates to the field of display, in particular to a display panel and a display device.

Background

Liquid crystal display (Liquid Crystal Display, LCD) panels, organic light emitting diode display (Organic Light Emitting Display, OLED) panels, and flat display panels such as display panels using light emitting diode (Light Emitting Diode, LED) devices have been widely used in various consumer electronic products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers, as a result of their advantages such as high image quality, power saving, thin body, and wide application range.

The OLED panel generally includes a plurality of light emitting units, and adjacent light emitting units have a risk of mixing light, affecting a display effect of the display panel.

Disclosure of Invention

The embodiment of the utility model provides a display panel and a display device, aiming at improving the display effect of the display panel.

An embodiment of a first aspect of the present utility model provides a display panel including: a substrate; the pixel definition layer is positioned on the substrate and comprises isolation parts and pixel openings formed by enclosing the isolation parts, and a light-emitting unit is arranged in each pixel opening; the partition column comprises an auxiliary part and a shading part, wherein the auxiliary part and the shading part are sequentially arranged on one side, away from the substrate, of the auxiliary part, and the orthographic projection of the auxiliary part on the substrate is positioned in the orthographic projection of the shading part on the substrate.

According to an embodiment of the first aspect of the present utility model, further comprising:

the first electrodes are positioned on one side of the light-emitting units, which is away from the substrate, the material of the auxiliary part comprises conductive material, and at least part of the first electrodes corresponding to the two adjacent light-emitting units are mutually and electrically connected through the auxiliary part.

According to any one of the foregoing embodiments of the first aspect of the present utility model, the first electrode contacts the auxiliary portion and covers at least a portion of an inner wall surface of the auxiliary portion facing the pixel opening.

According to any one of the foregoing embodiments of the first aspect of the present application, the display panel further includes a power signal line, and the auxiliary portion is electrically connected to the power signal line.

According to any one of the embodiments of the first aspect of the present application, the auxiliary portion is in a strip shape and an end of the auxiliary portion is connected to the power signal line.

According to any of the preceding embodiments of the first aspect of the application, the orthographic projection of at least part of the partition posts on the substrate is arranged around the orthographic projection of the single or multiple pixel openings on the substrate.

According to any of the foregoing embodiments of the first aspect of the present application, the front projection of the auxiliary portion on the substrate is disposed around the front projection of the single or multiple pixel openings on the substrate.

According to any one of the foregoing embodiments of the first aspect of the present application, an orthographic projection area of the auxiliary portion on the substrate is smaller than an orthographic projection area of the isolation portion on the substrate.

According to any of the foregoing embodiments of the first aspect of the present application, the front projection of the auxiliary portion on the substrate is disposed around the front projection of the single pixel opening on the substrate, and at least a portion of the light emitting unit is located on the surface of the isolation portion facing away from the substrate and is located in the space surrounded by the auxiliary portion.

According to any one of the foregoing embodiments of the first aspect of the present application, a distance between an orthographic projection boundary of the light shielding portion on the substrate and an orthographic projection boundary of the isolation portion on the substrate is less than or equal to 10 μm.

According to any one of the foregoing embodiments of the first aspect of the present application, the orthographic projection of the light shielding portion on the substrate at least partially covers the orthographic projection of the light emitting unit on the substrate.

According to any one of the foregoing embodiments of the first aspect of the present application, the light emitting unit includes a hole injection layer, a hole transport layer, a light emitting material layer, an electron transport layer, and an electron injection layer that are sequentially stacked in a direction away from the substrate, each of the hole injection layer, the hole transport layer, the electron transport layer, and the electron injection layer being spaced apart from the auxiliary portion.

According to any one of the foregoing embodiments of the first aspect of the present application, in at least two of the hole injection layer, the hole transport layer, the light emitting material layer, the electron transport layer, and the electron injection layer, a distance from one of the adjacent auxiliary portions to the substrate is greater than a distance from one of the adjacent auxiliary portions to the substrate.

According to any one of the foregoing embodiments of the first aspect of the present application, the light emitting units have different light emitting colors, the light emitting units are configured to realize color display of the display panel, and the thicknesses of the first electrodes corresponding to the at least two light emitting units having different colors are different.

According to any one of the foregoing embodiments of the first aspect of the present application, the light emitting units with different colors include a red light emitting unit, a green light emitting unit, and a blue light emitting unit, and the thickness of the first electrode corresponding to the red light emitting unit and the thickness of the first electrode corresponding to the blue light emitting unit are both greater than the thickness of the first electrode corresponding to the green light emitting unit.

According to any one of the foregoing embodiments of the first aspect of the present application, the thickness of the first electrode corresponding to the red light emitting unit is 110 to 180 μm, the thickness of the first electrode corresponding to the blue light emitting unit is 110 to 180 μm, and the thickness of the first electrode corresponding to the green light emitting unit is 80 to 150 μm.

According to any of the foregoing embodiments of the first aspect of the present application, further comprising: and the packaging layer is used for packaging the light-emitting unit and comprises a first inorganic layer.

According to any one of the foregoing embodiments of the first aspect of the present application, the first inorganic layer includes a plurality of independent package portions located on a side of each light emitting unit facing away from the substrate and separated into independent ones by the light shielding portion partition column.

According to any of the foregoing embodiments of the first aspect of the present application, the thickness of the individual package portions corresponding to the light emitting units having different colors is different.

According to any one of the foregoing embodiments of the first aspect of the present application, the display panel further includes a dimming portion located between the light emitting units and the independent package portion, and the dimming portions corresponding to the light emitting units having different colors have different thicknesses.

According to any one of the foregoing embodiments of the first aspect of the present application, the display panel further includes a protection portion located between the light emitting units and the independent package portion, wherein thicknesses of the protection portions corresponding to the light emitting units having different colors are different.

According to any one of the foregoing embodiments of the first aspect of the present application, the display panel further includes a color film substrate, which is located on a side of the encapsulation layer away from the light emitting units, the color film substrate includes a blocking portion and a light filtering opening surrounded by the blocking portion, each light filtering opening is provided with a light filtering unit therein, and orthographic projections of each light filtering unit and each light emitting unit on the substrate are at least partially overlapped.

According to any of the foregoing embodiments of the first aspect of the present application, the display panel further includes a touch layer located between the encapsulation layer and the color film substrate.

According to any one of the preceding embodiments of the first aspect of the present application, the light shielding portion includes a first surface facing the isolation portion and a second surface facing away from the isolation portion, and an orthographic projection of the second surface on the substrate is located within an orthographic projection of the first surface on the substrate.

According to any one of the foregoing embodiments of the first aspect of the present application, the light shielding portion further includes a side surface connecting the first surface and the second surface, and an angle between the side surface and the first surface is less than or equal to 45 °.

According to any one of the foregoing embodiments of the first aspect of the present application, the light shielding portion has a trapezoidal cross section in the thickness direction of the display panel.

According to any one of the foregoing embodiments of the first aspect of the present application, the cross section of the light shielding portion has an isosceles trapezoid shape in the thickness direction.

According to any one of the foregoing embodiments of the first aspect of the present application, the front projection of the light shielding portion on the substrate is disposed around the front projection of each pixel opening on the substrate,

or, combining a plurality of light-emitting units to form a repeating unit, wherein the repeating units are sequentially arranged to form a pixel arrangement structure of the display panel, and orthographic projection of the light shielding part on the substrate surrounds orthographic projection of each repeating unit on the substrate;

or, the plurality of light emitting units are combined to form the display unit, and the orthographic projection of the shading part on the substrate is arranged around the orthographic projection of each display unit on the substrate.

According to any one of the foregoing embodiments of the first aspect of the present application, the material of the light shielding portion includes a reflective material or a light absorbing material.

According to any one of the foregoing embodiments of the first aspect of the present application, the material of the light shielding portion includes a reflective material including a metal material, or the material of the light shielding portion includes a light absorbing material including a black insulating material.

According to any one of the foregoing embodiments of the first aspect of the present application, the plurality of light emitting units emit light of the same color, and the light emitting units serve as light sources of the display panel.

An embodiment of a second aspect of the present application provides a display device including the display panel of any one of the above embodiments.

In the display panel provided by the embodiment of the application, the display panel comprises a substrate, and a pixel definition layer, an auxiliary part and a shading part which are arranged on the substrate. The pixel defining layer comprises a separation part and a pixel opening formed by the surrounding of the separation part, wherein the pixel opening is used for accommodating a light emitting unit, and the light emitting unit is used for realizing light emitting or colorized display of the display panel. The partition column comprises an auxiliary part and a shading part, the auxiliary part and the shading part are sequentially arranged on one side, deviating from the substrate, of the isolation part, the distance between the shading part and the luminous unit can be increased through the arrangement of the auxiliary part, and the influence of the shading part on the luminous efficiency of the luminous unit is improved. The orthographic projection of auxiliary portion on the base plate is located the orthographic projection of shading portion on the base plate within, and the size of shading portion is great promptly for shading portion can shelter from the wide-angle light that at least part luminescence unit sent, improves the problem that the light that this luminescence unit sent got into adjacent other luminescence units, and then improves the easy problem of mixing light between two adjacent luminescence units, can improve display panel's display effect.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading the following detailed description of non-limiting embodiments, taken in conjunction with the accompanying drawings, in which like reference characters designate the same or similar features, and in which the figures are not to scale.

Fig. 1 is a schematic top view of a partial layer structure of a display panel according to an embodiment of the present application;

FIG. 2 is a cross-sectional view at A-A of FIG. 1 in one embodiment;

FIG. 3 is a schematic top view of a portion of a layer structure of a display panel according to an embodiment of the present application;

FIG. 4 is a schematic top view of a portion of a display panel according to another embodiment of the present application;

FIG. 5 is a cross-sectional view at A-A of FIG. 1 in yet another embodiment;

FIG. 6 is a schematic view of a partial enlarged structure at I in FIG. 5;

fig. 7 is a schematic structural diagram of a display panel in a manufacturing process according to an embodiment of the present application.

Reference numerals illustrate:

100. a substrate; 110. a pixel electrode;

200. a pixel definition layer; 210. an isolation part; 220. a pixel opening; 230. a light emitting unit; 231. a hole injection layer; 232. a hole transport layer; 233. a luminescent material layer; 234. an electron transport layer; 235. an electron injection layer;

300. a partition column; 310. a light shielding section; 311. a first surface; 312. a second surface; 313. a side surface; 320. an auxiliary part; 321. a first auxiliary unit; 322. a second auxiliary unit;

410. a first electrode; 420. a power signal line;

500. a dimming layer;

600. a protective layer;

700. An encapsulation layer; 71. a first inorganic layer; 72. an organic layer; 73. a second inorganic layer;

800. a color film substrate; 810. a blocking portion; 820. a filter opening; 830. a light filtering unit;

900. a touch layer;

x, a first direction; y, second direction; z, thickness direction.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely configured to illustrate the application and are not configured to limit the application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

It will be understood that when a layer, an area, or a structure is described as being "on" or "over" another layer, another area, it can be referred to as being directly on the other layer, another area, or another layer or area can be included between the layer and the other layer, another area. And if the component is turned over, that layer, one region, will be "under" or "beneath" the other layer, another region.

The display panel generally includes a plurality of light emitting units distributed in an array, and the light emitting units may serve as a light source of the display panel or the light emitting units may be used to realize display of the display panel. Different light emitting units are used for forming different patterns, and two adjacent light emitting units are closer in distance, so that light rays emitted by the light emitting units possibly enter the range of the adjacent light emitting units, the adjacent light emitting units are mixed, and the display effect of the display panel is seriously affected.

In order to solve the above problems, embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel, and embodiments of the display panel and the display device will be described below with reference to the accompanying drawings.

Embodiments of the present application provide a display panel, which may be an organic light emitting diode (Organic Light Emitting Diode, OLED) display panel.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic top view illustrating a partial layer structure of a display panel according to an embodiment of the application. Fig. 2 is a cross-sectional view at A-A in fig. 1.

As shown in fig. 1 and 2, the display panel provided by the embodiment of the application includes a substrate 100, and a pixel defining layer 200 and a partition column 300 disposed on the substrate 100. The pixel defining layer 200 is located on the substrate 100, the pixel defining layer 200 includes a partition 210 and pixel openings 220 surrounded by the partition 210, and a light emitting unit 230 is disposed in each pixel opening 220; the partition column 300 includes an auxiliary portion 320 and a light shielding portion 310 stacked in order on a side of the partition portion 210 facing away from the substrate 100, and an orthographic projection of the auxiliary portion 320 on the substrate 100 is located within an orthographic projection of the light shielding portion 310 on the substrate 100.

In the display panel provided by the embodiment of the application, the display panel comprises a substrate 100, and a pixel definition layer 200 and a partition column 300 which are arranged on the substrate 100. The pixel defining layer 200 includes a partition 210 and a pixel opening 220 surrounded by the partition 210, the pixel opening 220 for accommodating a light emitting unit 230, and the light emitting unit 230 for realizing light emission or colorized display of the display panel. The partition column 300 includes an auxiliary portion 320 and a light shielding portion 310, the auxiliary portion 320 and the light shielding portion 310 are sequentially disposed at a side of the isolation portion 210 facing away from the substrate 100, and a distance between the light shielding portion 310 and the light emitting unit 230 can be increased by disposing the auxiliary portion 320, so that an influence of the light shielding portion 310 on the light emitting efficiency of the light emitting unit 230 can be improved. The front projection of the auxiliary portion 320 on the substrate 100 is located within the front projection of the light shielding portion 310 on the substrate 100, that is, the size of the light shielding portion 310 is larger, so that the light shielding portion 310 can shield at least part of the large-angle light emitted by the light emitting unit 230, thereby improving the problem that the light emitted by the light emitting unit 230 enters the adjacent other light emitting units 230, further improving the problem of easy light mixing between the two adjacent light emitting units 230, and improving the display effect of the display panel.

In addition, by providing the auxiliary portion 320, the total height of the auxiliary portion 320 and the light shielding portion 310 is increased, and meanwhile, the size of the light shielding portion 310 is larger than that of the auxiliary portion 320, the carrier layer of the light emitting unit 230 is more likely to break near the partition column 300, and the carrier layer can be broken into a plurality of sub-portions, so that the spread of water and oxygen in the carrier layer is improved, and the yield of the carrier layer is improved.

In the related art, since the carrier layer of the light emitting unit 230 is generally formed by the whole surface evaporation process, lateral conduction may occur between two adjacent light emitting units 230 due to the whole surface evaporation film layer, that is, carriers may flow between two adjacent light emitting units 230, thereby causing the light emitting units 230 that are not needed to be displayed to emit weak light. In this embodiment, the front projection area of the auxiliary portion 320 is smaller than the front projection area of the light shielding portion 310, and at least a part of the light shielding portion 310 is suspended. Therefore, when the light emitting units 230 are prepared after the light shielding portions 310 are provided, the light shielding portions 310 can shield the evaporation material for preparing the light emitting units 230, so that the carrier layer is disconnected at the partition columns 300, and further, the problem of lateral conduction between two adjacent light emitting units 230 is prevented, and the display effect of the display panel is improved.

In some alternative embodiments, referring to fig. 2, the front projection area of the auxiliary portion 320 on the substrate 100 is smaller than the front projection area of the isolation portion 210 on the substrate 100.

In these alternative embodiments, the size of the auxiliary portions 320 is smaller than that of the spacer portions 210, so that the auxiliary portions 320 do not block the pixel openings 220, so that the first electrodes 410 located between adjacent auxiliary portions 320 can better cover the light emitting units 230. Alternatively, the distance between the front projection boundary of the light shielding portion 310 on the substrate 100 and the front projection boundary of the isolation portion 210 on the substrate 100 is less than or equal to 10 μm.

In these alternative embodiments, when the distance between the front projection boundary of the light shielding portion 310 on the substrate 100 and the front projection boundary of the isolation portion 210 on the substrate 100 is less than or equal to 10 μm, it is possible to improve both the light emitting efficiency of the light emitting unit 230 due to the oversized light shielding portion 310 and the large-angle light that is difficult to shield the light emitting unit 230 due to the undersize of the light shielding portion 310.

When the front projection area of the auxiliary portion 320 on the substrate 100 is smaller than the front projection area of the isolation portion 210 on the substrate 100, the light emitting units 230 may be arranged in various manners, and the light emitting units 230 may be located only in the pixel openings 220, or at least part of the light emitting units 230 may also extend from the inside of the pixel openings 220 to the surface of the isolation portion 210 facing away from the substrate 100 and be located in a space surrounded by the auxiliary portion 320.

When the light emitting unit 230 is only located in the pixel opening 220, the light shielding portion 310 may extend to the area where the pixel opening 220 is located to shield at least a portion of the light emitting unit 230. When at least part of the light emitting units 230 extend from the pixel openings 220 to the surface of the isolation portion 210 facing away from the substrate 100 and are located in the space surrounded by the auxiliary portion 320, the light shielding portion 310 may extend to the area where the pixel openings 220 are located, or the light shielding portion 310 may extend only to a partial area where the light emitting units 230 located on the isolation portion 210 are located, so long as the light shielding portion 310 can shield the light emitting units 230 from emitting light with a large angle, that is, the front projection of the light shielding portion 310 on the substrate 100 at least partially covers the front projection of the light emitting units 230 on the substrate 100.

As above, the light shielding portion 310 may shield the light emitting unit 230 located in the area where the pixel opening 220 is located, and then the front projection of the light shielding portion 310 on the substrate 100 may be greater than or equal to the front projection of the isolation portion 210 on the substrate 100. Alternatively, the light shielding portion 310 may also shield the portion of the light emitting unit 230 located on the surface of the isolation portion 210 facing away from the substrate 100, and then the front projection of the isolation portion 210 on the substrate 100 may be greater than or equal to the front projection of the light shielding portion 310 on the substrate 100.

The substrate 100 may be provided in various manners, and the substrate 100 may be, for example, an array substrate, and the substrate 100 includes a substrate and a driving circuit provided on the substrate. The substrate may be a rigid substrate or a flexible substrate. Optionally, a pixel electrode layer is further disposed between the array substrate and the pixel defining layer 200, where the pixel electrode layer includes pixel electrodes 110 distributed in an array and corresponding to each light emitting unit 230, and the pixel electrodes 110 are connected to a driving circuit and used for driving the light emitting units 230 to emit light.

The pixel defining layer 200 may be disposed in various ways, and the pixel defining layer 200 may be made of a transparent organic material. For example, the material of the pixel defining layer 200 may be hexamethyldisiloxane, epoxy resin or Polyimide (PI), or may be a silicon-based adhesive material with a light transmittance of 90% or more, or another organic adhesive material with a light transmittance slightly lower (greater than 80%) and a bending strength slightly higher, which is not limited in this embodiment.

The light shielding portion 310 may be disposed in various manners, so that the light shielding effect is achieved, the material of the light shielding portion 310 may be a reflective material or a light absorbing material, for example, the material of the light shielding portion 310 may be a reflective material such as metal, so that the light shielding portion 310 not only can shield the light with a large angle emitted by the light emitting unit 230, but also can reflect the light back into the light emitting unit 230, thereby improving the light emitting efficiency of the light emitting unit 230 and further improving the display effect of the display panel. Alternatively, the material of the light shielding part 310 includes a light absorbing material, for example, the material of the light shielding part 310 includes a black insulating light absorbing material, so that the light shielding part 310 can absorb the large-angle light emitted from the light emitting unit 230, thereby improving light mixing and enhancing the display effect of the display panel.

In some alternative embodiments, as shown in fig. 1 and 2, the display panel further includes a first electrode 410, the first electrode 410 is located on a side of the light emitting units 230 facing away from the substrate 100, the material of the auxiliary portion 320 includes a conductive material, and at least part of the first electrodes 410 corresponding to two adjacent light emitting units 230 are electrically connected to each other through the auxiliary portion 320.

In these alternative embodiments, the auxiliary portion 320 is made of a conductive material, and the plurality of first electrodes 410 can be interconnected as a plane electrode through the auxiliary portion 320, and the first electrodes 410 and the pixel electrode 110 cooperate to drive the light emitting unit 230 to emit light.

Alternatively, since the first electrodes 410 are connected to each other through the auxiliary portion 320, the first electrodes 410 may be disposed corresponding to the respective light emitting units 230, i.e., the first electrodes 410 and the light emitting units 230 are disposed in one-to-one correspondence, so that the first electrodes 410 do not need to cross the auxiliary portion 320 and the isolation portion 210, and the area of a single first electrode 410 is small and is not easily broken. Therefore, the thickness of the first electrode 410 may be set thinner, so that the light transmittance of the first electrode 410 may be improved, the light emitting rate of the light emitting unit 230 may be improved, and the display effect of the display panel may be further improved. In addition, since the auxiliary portion 320 has conductivity, the auxiliary portion 320 is connected to the first electrode 410, so that the resistance of the first electrode 410 can be reduced, and the problem of uneven display of the display panel due to the overlarge resistance of the first electrode 410 is solved.

Alternatively, the first electrode 410 is located in the pixel opening 220, or the first electrode 410 is located in a space surrounded by the auxiliary portion 320.

In some alternative embodiments, the first electrode 410 contacts with the auxiliary portion 320 and covers at least a portion of an inner wall surface of the auxiliary portion 320 facing the pixel opening 220, so as to increase a contact area between the first electrode 410 and the auxiliary portion 320, reduce a resistance at a connection between the first electrode 410 and the auxiliary portion 320, and increase an over-current between the first electrode 410 and the auxiliary portion 320, i.e. the first electrode 410 and the auxiliary portion 320 can bear more current flow, so that a display effect of the display panel is improved due to an excessive resistance and insufficient over-current.

The first electrode 410 is generally connected to a common ground voltage (ELVSS) signal line such that the first electrode 410 is at a low-level potential. When the first electrode 410 and the auxiliary portion 320 are connected to each other, the first electrode 410 may be connected to the ELVSS signal line through the auxiliary portion 320.

Referring to fig. 2 and fig. 3 together, fig. 3 is a top view of a partial layer structure of a display panel according to an embodiment of the application.

In some alternative embodiments, as shown in fig. 2 and 3, the display panel further includes a power signal line 420, and the auxiliary portion 320 is electrically connected to the power signal line 420, such that the first electrode 410 may be electrically connected to the power signal line 420 through the auxiliary portion 320. The power signal line 420 may be the ELVSS signal line described above.

The auxiliary portion 320 may be disposed in various manners, for example, the auxiliary portion 320 is in a strip shape when projected on the substrate 100, and an end of the auxiliary portion 320 is connected to the power signal line 420. For example, the auxiliary portions 320 are projected on the substrate 100 in a grid shape, and the end portions of the auxiliary portions 320 are connected to the power signal lines 420, so as to increase the connection area between the auxiliary portions 320 and the power signal lines 420.

Alternatively, the power signal line 420 is annular and disposed around the auxiliary portion 320 and the plurality of first electrodes 410, for example, the power signal line 420 may be located in a frame area of the display panel, the first electrodes 410 and the auxiliary portion 320 are located in a display area of the display panel, the frame area is disposed around the display area, and the power signal line 420 is disposed around the first electrodes 410 and the auxiliary portion 320 in the frame area.

Optionally, as shown in fig. 3, the auxiliary portion 320 is in a grid shape, the auxiliary portion 320 includes a first auxiliary portion 321 extending along a first direction X and a second auxiliary portion 322 extending along a second direction Y, the plurality of first auxiliary portions 321 are arranged side by side along the second direction Y, two ends of each first auxiliary portion 321 in the first direction X are connected to the power signal line 420, the plurality of second auxiliary portions 322 are arranged side by side along the first direction X, two ends of each second auxiliary portion 322 in the second direction Y are connected to the power signal line 420, so as to further increase the contact area between the auxiliary portion 320 and the power signal line 420, reduce the resistance, and increase the overcurrent area between the auxiliary portion 320 and the power signal line 420.

Alternatively, the front projection of at least part of the partition post 300 on the substrate 100 may be arranged around the front projection of the pixel opening 220 or the plurality of pixel openings 220 on the substrate 100. For example, it may be only provided that the front projection of the auxiliary portion 320 of the partition post 300 on the substrate 100 surrounds the front projection of one pixel opening 220 or a plurality of pixel openings 220 on the substrate 100. In some embodiments, it may also be arranged that the front projection of the whole of the partition post 300 on the substrate 100 surrounds the pixel opening 220 or the pixel openings 220.

Alternatively, as shown in fig. 3, the front projection of the auxiliary portion 320 on the substrate 100 may be disposed around the front projection of one pixel opening 220 on the substrate 100, or as shown in fig. 4, the front projection of the auxiliary portion 320 on the substrate 100 may be disposed around the front projections of a plurality of pixel openings 220 on the substrate 100. When the front projection of the auxiliary portion 320 on the substrate 100 is disposed around the front projection of one pixel opening 220 on the substrate 100, the first electrodes 410 and the light emitting units 230 are disposed in a one-to-one correspondence, and the first electrodes 410 corresponding to each light emitting unit 230 can be connected to the auxiliary portion 320. When the front projection of the auxiliary portion 320 on the substrate 100 is disposed around the front projection of the plurality of pixel openings 220 on the substrate 100, the first electrodes 410 may be disposed corresponding to the plurality of light emitting units 230 as long as the plurality of first electrodes 410 can be connected to each other through the auxiliary portion 320.

When the front projection of the isolation portion 210 on the substrate 100 is greater than or equal to the front projection of the light shielding portion 310 on the substrate 100, the partition column 200 may be disposed around the front projection of the single pixel opening 220 or the plurality of pixel openings 220 on the substrate 100 as a whole. That is, the front projections of the auxiliary portion 320 and the light shielding portion 310 on the substrate 100 are disposed around the single pixel opening 220 or the front projections of the plurality of pixel openings 220 on the substrate 100, so that the light shielding portion 310 can shield the light emitted from the light emitting units 230.

In some alternative embodiments, the plurality of light emitting units 230 are combined to form a repeating unit, the repeating units are sequentially arranged to form a pixel arrangement structure of the display panel, and the orthographic projections of the light shielding portion 310 and the auxiliary portion 320 on the substrate 100 are disposed around the orthographic projections of the pixel openings corresponding to the repeating units on the substrate 100.

In these alternative embodiments, the pixel arrangement is formed by sequentially repeating the repeating units. The light shielding portion 310 and the auxiliary portion are disposed around the pixel opening corresponding to each repeating unit, so that light mixing between two adjacent repeating units can be improved, and further, display effect of the display panel can be improved.

In other embodiments, the plurality of light emitting units 230 are combined to form a display unit, and the orthographic projections of the light shielding portion 310 and the auxiliary portion on the substrate 100 are disposed around the orthographic projections of the corresponding pixel openings of each display unit on the substrate 100. The display unit is, for example, a white light emitting display unit. In these embodiments, the plurality of light emitting units 230 are combined to form a display unit, for example, a red light emitting unit, a green light emitting unit and a blue light emitting unit are combined to form one display unit for emitting white light, and the light shielding portion 310 is disposed around the pixel opening corresponding to each display unit, so that the light shielding portion 310 can improve the light mixing between two adjacent display units, and further improve the display effect of the display panel.

Optionally, referring to fig. 2, the display panel includes an encapsulation layer 700, where the encapsulation layer 700 is used to encapsulate the light emitting unit 230. The encapsulation layer 700 includes a first inorganic layer 71, an organic layer 72, and a second inorganic layer 73 sequentially disposed in a direction away from the light emitting unit 230.

Alternatively, the first inorganic layer 71 includes a plurality of independent encapsulation parts located at a side of each light emitting unit 230 facing away from the substrate 100 and separated into independent arrangement by the partition columns 300. As described above, the size of the auxiliary portion 320 is smaller than that of the light shielding portion 310, so that the first inorganic layer 71 of the encapsulation layer can be broken at the position of the partition column 300 more easily, and a plurality of independent encapsulation portions independent from each other are formed to encapsulate each light emitting unit independently, so that water and oxygen are difficult to spread between the independent encapsulation portions, the performance between adjacent independent encapsulation portions is not affected, the problem of water and oxygen diffusing in the first inorganic layer 71 is better improved, and the encapsulation performance of the display panel is improved.

Optionally, as shown in fig. 5, the display panel further includes a dimming layer 500 and a protection layer 600 sequentially stacked on a side of the light emitting unit 230 facing away from the substrate 100, and the dimming layer 500 and the protection layer 600 are located between the encapsulation layer 700 and the first electrode 410.

The light adjusting layer 500 may be, for example, a CPL (light extraction layer), mainly for reducing the optical waveguide effect and improving the overall light emitting performance of the device, and the protective layer 600 may be made of LiF (lithium fluoride) material, so as to protect the CPL layer.

Optionally, along the thickness direction Z of the display panel, at least one of the dimming layer 500, the protection layer 600, and the first inorganic layer 71 corresponding to each light emitting unit 230 with different colors is different in thickness. Because the partition pillars 300 exist, some film layers above the light emitting units 230 can be partitioned into mutually independent portions by the partition pillars 300, and thus the thickness of some film layers above the light emitting units 230 can be adjusted according to actual needs, for example, the thickness of any one of the light modulation layer 500, the protection layer 600, and the first inorganic layer 71 corresponding to each light emitting unit 230 can be adjusted according to actual needs.

For example, the dimming layer 500 includes dimming parts 510, the dimming parts 510 are located between the light emitting units 230 and the independent packaging parts, the plurality of dimming parts 510 are separated by the partition columns 300 and are independently arranged, and the dimming parts 510 corresponding to the light emitting units 230 having different colors have different thicknesses. By adjusting the thickness of the dimming part 510 according to the color of the light emitting unit 230, the problem of display unevenness can be improved. Optionally, adjacent dimming parts 510 may be further separated by auxiliary parts 320.

Alternatively, the protection layer 600 includes the protection portions 610, the protection portions 610 are located between each light emitting unit 230 and the independent packaging portion, that is, the plurality of protection portions 610 are separated by the partition column 300 and are disposed independently of each other, the thickness of the protection portions 610 corresponding to the light emitting units 230 having different colors is different, and the problem of non-uniformity in display can be improved by adjusting the thickness of the protection portions 610 according to the colors of the light emitting units 230. Optionally, adjacent guard portions 610 may also be separated by auxiliary portions 320.

Referring to fig. 1, 5 and 6, fig. 5 is a cross-sectional view of fig. 1 A-A, and fig. 6 is a schematic view of a part of fig. 5 at I in an enlarged scale.

In some alternative embodiments, as shown in fig. 1, 5 and 6, the light emitting unit 230 includes a hole injection layer 231, a hole transport layer 232, a light emitting material layer 233, an electron transport layer 234 and an electron injection layer 235, which are sequentially stacked in a direction away from the substrate 100, and the hole injection layer 231, the hole transport layer 232, the light emitting material layer 233, the electron transport layer 234 and the electron injection layer 235 are each spaced apart from the auxiliary portion 320.

In these alternative embodiments, the hole injection layer 231, the hole transport layer 232, the light emitting material layer 233, the electron transport layer 234, and the electron injection layer 235 in the light emitting unit 230 are all disposed at intervals from the auxiliary portion 320, so that the problem of crosstalk of carriers in the light emitting unit 230 with each other through the auxiliary portion 320 can be improved, and the problem of light mixing of two adjacent light emitting units 230 can be further improved.

Optionally, at least two adjacent ones of the hole injection layer 231, the hole transport layer 232, the light emitting material layer 233, the electron transport layer 234, and the electron injection layer 235, a distance from one of the substrates 100 to the adjacent auxiliary portion 320 is greater than a distance from one of the substrates 100 to the adjacent auxiliary portion 320.

For example, the distances of the hole injection layer 231, the hole transport layer 232, the light emitting material layer 233, the electron transport layer 234, and the electron injection layer 235 to the auxiliary portion 320 gradually decrease.

In order to avoid the hole injection layer 231, the hole transport layer 232, the light emitting material layer 233, the electron transport layer 234, the electron injection layer 235, and the auxiliary portion 320 from being electrically connected, the distance between the hole injection layer 231, the hole transport layer 232, the light emitting material layer 233, the electron transport layer 234, the electron injection layer 235, and the auxiliary portion 320, that is, the distance between the first electrode 410 and the auxiliary portion 320 is closest to each other, may be increased. The hole injection layer 231, the hole transport layer 232, the light emitting material layer 233, the electron transport layer 234, and the electron injection layer 235 are spaced apart from the auxiliary portion 320 by a predetermined distance. And because the hole injection layer 231, the hole transport layer 232, the luminescent material layer 233, the electron transport layer 234, the electron injection layer 235 and the first electrode 410 are arranged in a layer-by-layer coverage manner, the upper layer film layer can be used for realizing the coverage and separation of the lower layer film layer by limiting the distance between each film layer and the adjacent auxiliary part 320, and the path which may cause lateral conduction is further cut off, so that the display effect is improved.

Alternatively, the distance from the latter one of the hole injection layer 231, the hole transport layer 232, the light emitting material layer 233, the electron transport layer 234, the electron injection layer 235, and the first electrode 410 to the adjacent auxiliary portion 320 may be smaller than or equal to the distance from the former one to the adjacent auxiliary portion 320, for example, the distance from the hole transport layer 232 to the adjacent auxiliary portion 320 may be equal to the distance from the hole injection layer 231 to the adjacent auxiliary portion 320, or may be smaller than the distance from the hole injection layer 231 to the adjacent auxiliary portion 320, and is not particularly limited.

Referring to fig. 7, in order to realize the above-mentioned film layer structure, the coverage of the evaporation material can be specifically adjusted by adjusting the evaporation angle α of each film layer during evaporation, so as to control the distance between the hole injection layer 231, the hole transport layer 232, the light emitting material layer 233, the electron transport layer 234, the electron injection layer 235, and the first electrode 410 to the adjacent auxiliary.

In some alternative embodiments, the light emitting units 230 have different light emitting colors, the light emitting units 230 are used to implement a color display of the display panel, and the first electrodes 410 corresponding to the light emitting units 230 having different colors have different thicknesses. The first electrode 410 corresponding to the light emitting unit 230 is the first electrode 410 located at the side of the light emitting unit 230 facing away from the substrate 100.

Since the first electrodes 410 in the embodiment of the present application are already separately disposed by the partition columns 300, the film layers of the first electrodes 410 may be separately manufactured, that is, the thickness of each first electrode 410 may be adjusted according to actual needs. In this embodiment, the inventors have found that by adjusting the thickness of the first electrode 410, the variation trend of the single color efficiency and the brightness attenuation of the light emitting units 230 can be adjusted, so that the thickness of the first electrode 410 of each light emitting unit 230 with different colors can be adjusted in a targeted manner to change the light emitting effect of each light emitting unit 230, thereby improving the viewing angle color cast of the display panel and enhancing the display effect.

Alternatively, the light emitting units 230 with different colors include a red light emitting unit, a green light emitting unit, and a blue light emitting unit, and the thickness of the first electrode 410 corresponding to the red light emitting unit and the thickness of the first electrode 410 corresponding to the blue light emitting unit are both greater than the thickness of the first electrode 410 corresponding to the green light emitting unit.

Setting the thickness of the first electrode 410 corresponding to the red light emitting unit relatively larger can effectively increase the light emitting efficiency of the red light emitting unit, while the blue light emitting unit is limited by the material used for the light emitting material layer 233, the service life is relatively shorter, and setting the thickness of the first electrode 410 corresponding to the blue light emitting unit relatively larger can effectively increase the service life of the blue light emitting unit. The red light, the green light and the blue light emitted by the red light emitting unit, the green light emitting unit and the blue light are mixed with each other to form white light, the duty ratio of the green light in the formed white light is maximum, and the brightness attenuation amplitude of the green light in side view can be reduced by setting the thickness of the first electrode 410 corresponding to the green light emitting unit smaller than the thickness of the first electrode 410 corresponding to the red light emitting unit and the thickness of the first electrode 410 corresponding to the blue light emitting unit, so that the brightness of the white light is ensured.

Alternatively, the thickness of the first electrode 410 corresponding to the red light emitting unit is 110 to 180 angstroms, the thickness of the first electrode 410 corresponding to the blue light emitting unit is 110 to 180 angstroms, and the thickness of the first electrode 410 corresponding to the green light emitting unit is 80 to 150 angstroms. Specifically, the thickness of the first electrode 410 corresponding to the red light emitting unit may be 125 μm, and the thickness of the first electrode 410 corresponding to the blue light emitting unit is 130 μm, so that the monochrome efficiency, the luminance attenuation and the viewing angle color bias of the display panel can be optimized better by setting different cathode thicknesses.

In some alternative embodiments, referring to fig. 6, the light shielding portion 310 includes a first surface 311 facing the isolation portion 210 and a second surface 312 facing away from the isolation portion 210, and the front projection of the second surface 312 on the substrate 100 is located within the front projection of the first surface 311 on the substrate 100. Optionally, the edge of the first surface 311 is located on the side of the second surface 312 facing the adjacent pixel opening 220.

In these alternative embodiments, the front projection of the second surface 312 on the substrate 100 is located within the front projection of the first surface 311 on the substrate 100, so that the side surface 313 connecting the first surface 311 and the second surface 312 can be disposed obliquely, and the obliquely disposed side surface 313 will carry the excessive vapor deposition material during the vapor deposition of the light emitting unit 230. Compared with the prior art, the inclined arrangement of the side surface 313 extends vertically along the thickness direction Z relative to the side surface 313, so that the evaporation material can be prevented from being accumulated excessively on the vertical side surface 313 and falling onto the lower light emitting unit 230, the formation of foreign matters on the light emitting unit 230 is avoided, and the manufacturing yield of the display panel is improved.

Alternatively, as described above, the light shielding portion 310 further includes a side surface 313 connecting the first surface 311 and the second surface 312, the side surface 313 being planar, and the side surface 313 being disposed obliquely adjacent to the first surface 311 in a direction approaching the pixel opening 220. The side surface 313 is planar, on the one hand easy to manufacture and on the other hand also capable of carrying more evaporation material.

Optionally, the angle between the side surface 313 and the first surface 311 is less than or equal to 45 °.

The smaller the included angle between the side surface 313 and the first surface 311 is, the slower the gradient of the side surface 313 is, and the less likely the evaporation material carried by the side surface 313 will drop, so that the manufacturing yield of the display panel can be better improved. Therefore, when the included angle between the side surface 313 and the first surface 311 is less than or equal to 45 °, more evaporation materials can be carried on the side surface 313, and the evaporation materials are not easy to fall from the side surface 313 onto the light emitting unit 230, so that the manufacturing yield of the display panel can be better improved.

Alternatively, the cross section of the light shielding part 310 is trapezoidal along the thickness direction Z of the display panel; the side surface 313 is a trapezoidal waist. Alternatively, the cross section of the light shielding portion 310 in the thickness direction Z is isosceles trapezoid. So that the shielding effect of the pixel openings 220 at both sides of the light shielding portion 310 tends to be uniform, and the display effect of different positions of the display panel is more uniform.

As described above, the display panel includes the encapsulation layer 700 for encapsulating the light emitting units 230, and with continued reference to fig. 2, a color film substrate 800 may be disposed on a side of the encapsulation layer 700 facing away from the light emitting units 230, where the color film substrate 800 includes a blocking portion 810 and a light filtering opening 820 surrounded by the blocking portion 810, each light filtering opening 820 is provided with a light filtering unit 830, and each light filtering unit 830 and an orthographic projection of each light emitting unit 230 on the substrate 100 are at least partially overlapped.

In these alternative embodiments, by disposing the color film substrate 800 in the display panel, the parasitic light can be filtered by the filter unit 830 of the color film substrate 800, so as to improve the display effect of the display panel. And when the color film substrate 800 is arranged in the display panel, the polarizer is not required to be arranged, so that the structure of the display panel can be simplified.

Optionally, referring to fig. 2, the display panel further includes a touch layer 900, where the touch layer 900 is located between the color film substrate 800 and the encapsulation layer 700.

As above, the light emitting unit 230 may be used to realize a colorized display of the display panel.

In other embodiments, the light emitting color of the plurality of light emitting units 230 is the same, and the light emitting units 230 serve as light sources of the display panel. For example, the light emitting unit 230 is further provided with a quantum dot material unit for converting light emitted from the light emitting unit 230 into light of a specified color, so as to realize colorized display of the display panel. At this time, the light emitting unit 230 may be an organic light emitting diode, or the light emitting unit 230 may be a micro light emitting diode.

An embodiment of the second aspect of the present utility model further provides a display device, including a display panel according to any one of the embodiments of the first aspect. Since the display device provided by the embodiment of the second aspect of the present utility model includes the display panel of any one of the embodiments of the first aspect, the display device provided by the embodiment of the second aspect of the present utility model has the beneficial effects of the display panel of any one of the embodiments of the first aspect, and is not described herein again.

The display device in the embodiment of the utility model comprises, but is not limited to, a mobile phone, a personal digital assistant (Personal Digital Assistant, abbreviated as PDA), a tablet computer, an electronic book, a television, an access control, a smart phone, a console and other devices with display functions.

In accordance with the above embodiments of the utility model, these embodiments are not exhaustive of all details, nor are they intended to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model and various modifications as are suited to the particular use contemplated. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A display panel, comprising:

a substrate;

the pixel definition layer is positioned on the substrate and comprises isolation parts and pixel openings formed by enclosing the isolation parts, and a light-emitting unit is arranged in each pixel opening;

the partition column comprises an auxiliary part and a shading part, wherein the auxiliary part and the shading part are sequentially arranged on one side, far away from the substrate, of the isolation part, and the orthographic projection of the auxiliary part on the substrate is positioned in the orthographic projection of the shading part on the substrate.

2. The display panel of claim 1, further comprising:

the first electrodes are positioned on one side of the light-emitting units, which is away from the substrate, the material of the auxiliary part comprises conductive materials, and at least part of the first electrodes corresponding to two adjacent light-emitting units are mutually and electrically connected through the auxiliary part.

3. The display panel according to claim 2, wherein the first electrode is in contact with the auxiliary portion and covers at least part of an inner wall surface of the auxiliary portion facing the pixel opening.

4. The display panel according to claim 2, further comprising a power signal line, wherein the auxiliary portion is electrically connected to the power signal line.

5. The display panel according to claim 4, wherein the auxiliary portion is in a stripe shape and an end of the auxiliary portion is connected to the power signal line.

6. The display panel according to claim 2, wherein an orthographic projection area of the auxiliary portion on the substrate is smaller than an orthographic projection area of the isolation portion on the substrate.

7. The display panel according to claim 2, wherein a distance between a front projection boundary of the light shielding portion on the substrate and a front projection boundary of the isolation portion on the substrate is less than or equal to 10 μm.

8. The display panel according to claim 2, wherein the orthographic projection of the light shielding portion on the substrate covers the orthographic projection of at least part of the light emitting unit on the substrate.

9. The display panel according to claim 2, wherein the light-emitting unit includes a hole injection layer, a hole transport layer, a light-emitting material layer, an electron transport layer, and an electron injection layer, which are sequentially stacked in a direction away from the substrate, the hole injection layer, the hole transport layer, the electron transport layer, and the electron injection layer being each provided at a distance from the auxiliary portion.

10. The display panel according to claim 9, wherein a distance from one of the substrates to an adjacent auxiliary portion is larger than a distance from one of the substrates to an adjacent auxiliary portion among at least two of the hole injection layer, the hole transport layer, the light emitting material layer, the electron transport layer, and the electron injection layer.

11. The display panel according to claim 2, wherein the light emitting units are different in light emitting color, and the first electrodes corresponding to the light emitting units different in at least two colors are different in thickness.

12. The display panel according to claim 11, wherein the light emitting units having different colors include a red light emitting unit, a green light emitting unit, and a blue light emitting unit, and wherein a thickness of the first electrode corresponding to the red light emitting unit and a thickness of the first electrode corresponding to the blue light emitting unit are each larger than a thickness of the first electrode corresponding to the green light emitting unit.

13. The display panel according to claim 12, wherein the thickness of the first electrode corresponding to the red light emitting unit is 110 to 180 meters, the thickness of the first electrode corresponding to the blue light emitting unit is 110 to 180 meters, and the thickness of the first electrode corresponding to the green light emitting unit is 80 to 150 meters.

14. The display panel of claim 1, further comprising:

and the packaging layer is used for packaging the light-emitting unit and comprises a first inorganic layer.

15. The display panel of claim 14, wherein the first inorganic layer includes a plurality of independent encapsulation portions located at a side of each light emitting unit facing away from the substrate and separated by the partition posts to be disposed independently of each other.

16. The display panel according to claim 15, wherein the thickness of the individual package portions corresponding to the light emitting units having different colors is different.

17. The display panel according to claim 15, further comprising a dimming portion between the light emitting units and the independent packaging portion, wherein the dimming portions corresponding to the light emitting units having different colors are different in thickness.

18. The display panel according to claim 15, further comprising a protection portion between the light emitting unit and the independent package portion, wherein the protection portions corresponding to the light emitting units having different colors have different thicknesses.

19. The display panel of claim 14, further comprising a color film substrate on a side of the encapsulation layer facing away from the light emitting units, wherein the color film substrate includes a blocking portion and a light filtering opening surrounded by the blocking portion, wherein a light filtering unit is disposed in each light filtering opening, and orthographic projections of each light filtering unit and each light emitting unit on the substrate are at least partially overlapped.

20. The display panel of claim 19, further comprising a touch layer between the encapsulation layer and the color film substrate.

21. The display panel of claim 1, wherein the light shielding portion includes a first surface facing the spacer portion and a second surface facing away from the spacer portion, the orthographic projection of the second surface on the substrate being within the orthographic projection of the first surface on the substrate.

22. The display panel of claim 21, wherein the light shielding portion further comprises a side surface connecting the first surface and the second surface, the side surface being planar.

23. The display panel of claim 22, wherein an angle between the side surface and the first surface is less than or equal to 45 °.

24. The display panel according to claim 21, wherein a cross section of the light shielding portion is trapezoidal in a thickness direction of the display panel.

25. The display panel according to claim 24, wherein a cross section of the light shielding portion in the thickness direction is isosceles trapezoid.

26. The display panel of claim 1, wherein an orthographic projection of at least part of the partition posts on the substrate is disposed around an orthographic projection of single or multiple pixel openings on the substrate.

27. The display panel of claim 26, wherein the front projection of the auxiliary portion on the substrate is disposed around the front projection of the pixel opening or openings on the substrate.

28. The display panel of claim 27, wherein the front projection of the auxiliary portion on the substrate is disposed around the front projection of the pixel opening on the substrate, and at least a portion of the light emitting unit is located on a surface of the partition portion facing away from the substrate and in a space defined by the auxiliary portion.

29. The display panel of claim 26, wherein the orthographic projection of the light shielding portion on the substrate is disposed around the orthographic projection of the single or the plurality of pixel openings on the substrate.

30. The display panel according to claim 1, wherein the material of the light shielding portion includes a reflective material or a light absorbing material.

31. The display panel according to claim 30, wherein a material of the light shielding portion includes a reflective material including a metal material, or wherein a material of the light shielding portion includes a light absorbing material including a black insulating material.

32. The display panel according to claim 1, wherein the light emitting units are the same in light emitting color, and the light emitting units serve as light sources of the display panel.

33. A display device comprising the display panel of any one of claims 1-32.