CN111048695B - Display panel and display device - Google Patents
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Abstract
The embodiment of the invention provides a display panel and a display device. The display panel includes: the supporting columns are positioned on one side of the substrate; the cathode layer is positioned on one side of the support column, which is far away from the substrate, the support column comprises a first support column, and the first support column is covered by the cathode layer in the direction vertical to the plane of the substrate; and the light shielding layer is positioned on one side of the cathode layer, which is far away from the support columns, and comprises a plurality of light shielding parts, and at least a part of the first support columns are overlapped with the light shielding parts in the direction vertical to the plane of the substrate. According to the invention, through the arrangement of the light shielding layer, the cathode layer and the supporting part can be prevented from being matched to form a reflection grating structure, so that the rainbow texture phenomenon can be improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
In the conventional display device technology, display panels are mainly classified into two mainstream technologies, namely, a liquid crystal display panel and an organic self-luminous display panel. The liquid crystal display panel forms an electric field capable of controlling the deflection of liquid crystal molecules by applying voltage on the pixel electrode and the common electrode, and further controls the transmission of light rays to realize the display function of the display panel; the organic self-luminous display panel adopts an organic electroluminescent material, and when current passes through the organic electroluminescent material, the luminescent material can emit light, so that the display function of the display panel is realized.
With the application of display technology in smart wearable and other portable electronic devices, smooth user experience is continuously pursued in the design of electronic products, and meanwhile, sensory experience of users is also increasingly pursued, for example: the wide viewing angle, high resolution, narrow frame, high screen ratio and other performances become selling points of various electronic products. The organic self-luminous display panel does not need to be provided with a backlight source, can realize the advantages of thinness, low power consumption, quick response and the like, and becomes the key point of research of various manufacturers at present. The existing organic self-luminous display panel has rainbow patterns, and the rainbow patterns with red and blue intervals move along with the change of the visual angle, so that the aesthetic property of the screen is influenced.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, and the rainbow texture phenomenon of the display panel is improved.
In a first aspect, an embodiment of the present invention provides a display panel, including:
the device comprises a substrate and a plurality of supporting columns, wherein the supporting columns are positioned on one side of the substrate;
the cathode layer is positioned on one side of the support column, which is far away from the substrate, the support column comprises a first support column, and the first support column is covered by the cathode layer in the direction vertical to the plane of the substrate;
and the shading layer is positioned on one side of the cathode layer, which is far away from the supporting columns, and comprises a plurality of shading parts, and at least part of the first supporting columns are overlapped with the shading parts in the direction vertical to the plane of the substrate.
Based on the same inventive concept, in a second aspect, an embodiment of the present invention further provides a display device, including the display panel provided in any embodiment of the present invention.
The display panel and the display device provided by the embodiment of the invention have the following beneficial effects: and a shading layer is arranged on one side of the cathode layer far away from the support columns, and a shading part in the shading layer is overlapped with at least part of the first support columns, namely the shading part can shade the cathode layer with the reflection performance above the first support columns. The light irradiates the display panel, and the light is shielded by the light shielding part, so that the light cannot be reflected on the surface of the structure formed by the cathode layer and the first support column in the area where the light shielding part is located. Thereby the setting of light shield layer can make the structure that cathode layer and support column constitute jointly can not scatter light at display panel's subregion at least, avoids cathode layer and supporting part cooperation to form the reflection grating structure to rainbow line phenomenon can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a display panel in the related art;
fig. 2 is a simplified schematic diagram of a film structure of an alternative embodiment of a display panel according to an embodiment of the present invention;
fig. 3 is a simplified schematic diagram of a film structure of another alternative embodiment of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic top view of an alternative embodiment of a display panel according to an embodiment of the present invention;
FIG. 5 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present invention;
FIG. 6 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present disclosure;
FIG. 7 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present disclosure;
FIG. 8 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present disclosure;
FIG. 9 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present disclosure;
fig. 10 is a schematic view of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The rainbow patterns of red and blue on the display panel not only affect the beauty, but also have a certain effect on the eyesight of users. According to the invention, the rainbow texture phenomenon of the display panel is researched and analyzed, and the structure of the display panel is improved and designed so as to improve the rainbow texture phenomenon.
First, the inventors thought whether a film layer on the outer side of the display panel caused the occurrence of rainbow stripes. The display panel with the polaroid attached to the surface and the surface, the display panel without the polaroid attached to the surface, the attached polaroid model and the like are tested. After the polarizers of different models are attached, the rainbow texture phenomenon of the display panel is not obviously different. And the display panel has rainbow patterns no matter whether the polarizer is attached or not. The inventor analyzes the test results and considers the test results further that: the polarizer is not a main cause of the rainbow-like phenomenon, which may be caused by the internal structure of the display panel. Then those structures inside the display panel cause the appearance of rainbow patterns? The inventors analyzed the cause of the rainbow patterns in combination with the characteristics of the rainbow patterns and the structure of the existing display panel.
The rainbow patterns are, as their name implies, colored stripes, while the natural light is white light, and the occurrence of the rainbow patterns may be caused by a phenomenon that the natural light is dispersed on the display panel. And specifically what does the structure disperse the light? The inventors further analyzed the related art display panel illustrated in fig. 1.
Fig. 1 is a schematic structural diagram of a display panel in the related art. As shown in fig. 1, the display panel includes a substrate 101 ', a plurality of light emitting devices P ' on the substrate 101 ', the light emitting devices P ' including an anode a ', a light emitting layer b ', and a cathode c ' sequentially stacked. The display panel further includes a pixel defining layer PDL ' for spacing the respective anodes a ' and light emitting layers b '. After voltages are applied to the anode a ' and the cathode c ' of the light emitting device, respectively, the light emitting layer b ' can be excited to emit light. As shown in fig. 1, the cathode c' is generally disposed over the entire surface. Still be provided with support column PS 'between negative pole c' place rete and pixel define layer PDL ', support column PS' is used for supporting display panel's structural strength, can play the effect of support to the mask plate simultaneously in the coating by vaporization technology of luminescent layer b' to guarantee that the coating by vaporization is even.
In order to ensure the light extraction efficiency of the light-emitting device, the cathode is made of a material with high light transmittance. The concern to those skilled in the art regarding the characteristics of the cathode is also generally its light transmittance and electrical conductivity properties. The inventor considers that the cathode has a high light transmittance, but still has a certain reflection effect on light, so that the cathode has the characteristics of half-reflection and half-transmission. The cathode is used as a material with a reflecting effect, and the structure formed by the cathode and the regularly arranged support columns below the cathode is similar to that of the reflection grating. The reflecting grating is a grating which is formed by plating a layer of metal film on the metal with high reflectivity and etching a series of parallel equal-width equidistant grooves on the mirror surface metal film, so that white light can be reflected and light dispersion can be generated. The inventor thinks that the theory of the reflection grating is applied to the structure of the display panel, the cathode is equivalent to the reflection film layer, and the regularly arranged support columns are equivalent to the equal-spacing scribed lines. Therefore, the reflection grating structure formed by the cathode and the support pillar has a dispersion effect on light, and the rainbow texture phenomenon appears on the panel.
Based on the above analysis, in order to improve the rainbow texture phenomenon of the display panel, the inventors further considered that the rainbow texture phenomenon is improved by adding a light shielding layer in the panel structure so that the structure of the reflective grating cannot be formed in the panel structure.
Fig. 2 is a simplified schematic diagram of a film structure of an alternative embodiment of a display panel according to an embodiment of the present invention. As shown in fig. 2, the display panel includes:
the structure comprises a substrate 101 and a plurality of supporting columns ps, wherein the supporting columns ps are positioned on one side of the substrate 101;
the cathode layer c is positioned on one side of the support columns ps far away from the substrate 101, the support columns ps comprise first support columns ps1, and the first support columns ps1 are covered by the cathode layer c in the direction perpendicular to the plane of the substrate 101; as illustrated in the drawing, the cathode layer c, the light emitting layer b, and the anode a constitute a light emitting device P. The display panel further includes a pixel definition layer PDL, and the support posts ps are located on a side of the pixel definition layer PDL away from the substrate 101.
And the shading layer Z is positioned on one side of the cathode layer c far away from the supporting columns ps, and comprises a plurality of shading parts B, and at least part of the first supporting columns ps1 are overlapped with the shading parts B in the direction vertical to the plane of the substrate 101. The first support columns ps1 illustrated only in fig. 2 each have the light shielding portion B overlapping therewith. Alternatively, part of the first support posts ps1 may overlap the light shielding portion B in the display panel. In the embodiment of the present invention, the first support column ps1 overlaps the light shielding portion B, and for one first support column ps1, in a direction perpendicular to the plane of the substrate 101, the first support column ps1 and the light shielding portion B may all overlap, that is, the light shielding portion B covers the first support column ps1; the partial region of the first support column ps1 may overlap the light shielding portion B.
In one embodiment, in the process of manufacturing the display panel, a plurality of mutually insulated anodes are first manufactured, then a pixel definition layer is manufactured on the anodes, and then the pixel definition layer is etched to form a plurality of openings. And then, manufacturing a support pillar after the etching process of the pixel definition layer, and manufacturing a light-emitting layer and other organic film layers by adopting an evaporation process after the manufacturing process of the support pillar. Wherein set up first support column ps1 evenly distributed in display panel to first support column ps1 still plays the effect of supporting the mask piece in the coating by vaporization technology of organic layers such as luminescent layer b, guarantees that the mask piece atress is even in the coating by vaporization technology, and then ensures the accuracy of organic layer coating by vaporization technologies such as luminescent layer, thereby luminescent device's luminous performance is reliable.
In fig. 2, the structure of the display panel is only schematically illustrated, and the light shielding layer Z is located on a side of the cathode layer c away from the support posts ps. There may be other film structures between the light-shielding layer Z and the cathode layer c. Alternatively, the light-shielding layer Z may be in direct contact with the cathode layer c.
In an embodiment, the display panel further includes an encapsulation structure, the encapsulation structure is located on a side of the cathode layer c away from the substrate 101, and the light shielding layer Z is located on a side of the encapsulation structure away from the cathode layer c. The packaging structure is used for packaging the light-emitting device to block water and oxygen and ensure the service life of the light-emitting device.
In one embodiment, the display panel further includes an encapsulation structure, and the light-shielding layer Z is located between the cathode layer c and the encapsulation structure.
With continued reference to the illustration in fig. 2, the display panel further comprises an array layer 102, the array layer 102 is located on the substrate 101, the array layer 102 comprises a pixel circuit, and the anode a of the light emitting device P is schematically shown to be electrically connected with the transistor T in the pixel circuit. The transistor T is only illustrated in a top-gate structure, and optionally, the transistor T may also be in a bottom-gate structure.
The display panel that this application embodiment provided sets up the light shield layer in one side of keeping away from the support column of cathode layer, and the shading portion in the light shield layer overlaps with at least partial first support column, and the shading portion also can shelter from the cathode layer that has reflective performance above the first support column promptly. The light irradiates the display panel, and the shading part shades the light, so that the light cannot be reflected on the surface of a structure formed by the cathode layer and the first support column in the area where the shading part is located. Thereby the setting of light shield layer can make the structure that cathode layer and support column constitute jointly can not scatter light at display panel's subregion at least, avoids cathode layer and supporting part cooperation to form the reflection grating structure to rainbow line phenomenon can be improved.
Optionally, in the embodiment of the present invention, the supporting pillars are uniformly distributed in the display area of the display panel. When all first supporting parts all correspond shading portion rather than the overlap, then in the position at each first supporting part place, light at first can be sheltered from by shading portion, and light can not take place to reflect at the common structural surface who constitutes of cathode layer and first support column to can avoid cathode layer and evenly distributed's supporting part cooperation to form the reflection grating structure. When only part of the first supporting part corresponds to the light shielding part and is overlapped with the light shielding part, the light rays are firstly shielded by the light shielding part at the position of the first supporting part overlapped with the light shielding part, and the light rays cannot be reflected on the surface of the structure formed by the cathode layer and the first supporting column together. That is, the arrangement of the shading part can prevent the structure formed by the cathode layer and the supporting part from forming a regular reflection grating structure, and the rainbow streak phenomenon can be improved.
In the display panel provided by the embodiment of the invention, the light shielding part in the light shielding layer is overlapped with at least part of the first support columns, so that the cathode layer cannot be matched with the support columns to form a reflection grating structure. In the display panel, the light-shielding layer may be disposed in various ways. The following examples will illustrate the specific arrangement of the light-shielding layer in detail.
In one embodiment, the light shielding portion in the light shielding layer is arranged to overlap with part of the first support column, and there is also part of the first support column in the panel that does not overlap with the light shielding portion. Fig. 3 is a simplified schematic diagram of a film structure of another alternative embodiment of a display panel according to an embodiment of the present invention. As shown in fig. 3, the first support column ps1 includes a first sub-first support column ps11 and a second sub-first support column ps12, and the first sub-first support column ps11 overlaps the light shielding portion B and the second sub-first support column ps12 does not overlap the light shielding portion B in a direction perpendicular to the plane of the substrate 101. That is, the light shielding portion is provided over the first sub-first support pillar to overlap therewith, and the light shielding portion is not provided over the second sub-first support pillar. Can guarantee that at least partial cathode layer on first sub-first support column is sheltered from by the shading portion through shading portion and the first support column overlap of first sub-to the surface of the structure that first sub-first support column place made cathode layer and first sub-first support column constitute jointly can not scatter light in the at least part region at first sub-first support column place, can avoid cathode layer and support column cooperation to form the reflection grating structure, has improved rainbow line phenomenon.
Further, with continuing reference to fig. 4, fig. 4 is a schematic top view of an alternative implementation of the display panel according to the embodiment of the present invention. The display panel includes a display area AA and a non-display area BA, and the arrangement of the supporting pillars in the display area AA is only schematically shown in the figure. The second sub-first support posts ps12 are non-uniformly distributed within the display area AA. The figure also illustrates a light emitting device P. The first sub-first support post ps11 overlaps the shading portion B, and thus, in the region where the first sub-first support post ps11 is located, the light emitted to the cathode layer is shaded by the shading portion B, so that scattering does not occur on the surface of the structure formed by the cathode layer and the first sub-first support post ps11 in a matched manner. The second sub-first support column ps12 is not overlapped with the shading part B, and in the area where the second sub-first support column ps12 is located, light may be scattered on the surface of the structure formed by the cathode layer and the second sub-first support column ps12 in a matched mode, but for the whole surface of the display panel, the second sub-first support column ps12 is arranged in the display area AA in a non-uniform distribution mode, so that the cathode layer and the second sub-first support column are prevented from being matched to form a regular reflection grating structure, and the rainbow texture phenomenon is improved.
In one embodiment, the light shielding part covers the first support column overlapped with the light shielding part in a direction perpendicular to the plane of the substrate. The direction perpendicular to the plane of the substrate is the same as the top view direction of the display panel, and with continued reference to the illustration in fig. 4, the light shielding portion B covers the first support pillar (i.e., the first sub-first support pillar ps11 in the figure) overlapped with it. Thereby shading portion B can shelter from the cathode layer on first sub-first support column and the first sub-first support column completely, thereby the cathode layer on the first sub-first support column can not scatter light at all, can make the structure that cathode layer and support column constitute jointly can not scatter light at display panel's subregion at least, avoids cathode layer and supporting part cooperation to form the reflection grating structure, thereby can improve rainbow line phenomenon.
In the display panel provided by the embodiment of the invention, one light shielding portion may overlap with one support column, and one light shielding portion may overlap with two or more support columns. In the same display panel, the number of support columns overlapping with different light shielding portions may be different. The specific setting mode can be selected according to the requirement.
In one embodiment, one light shielding portion overlaps at least one support post in a direction perpendicular to the plane of the substrate. Fig. 5 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present invention. As shown in fig. 5, one light shielding portion B is illustrated to overlap two first support posts ps 1. In this embodiment, one light shielding portion B can simultaneously shield the structure formed by the two first support posts ps1 and the cathode layer thereon, so that light rays in the region where the light shielding portion is located will not be scattered on the structure surface formed by the cathode layer and the first support posts, and the cathode layer and the support portion are prevented from being matched to form a reflection grating structure, thereby improving the rainbow streak phenomenon.
In an embodiment, fig. 6 is a schematic top view of another alternative implementation of a display panel according to an embodiment of the present disclosure. As shown in fig. 6, in the display panel, the number of support columns overlapping with different light shielding portions is different, the light shielding portion B1 overlaps with two first support columns ps1, and the light shielding portion B2 overlaps with three first support columns ps 1. In an actual display panel, the number of the support pillars overlapping the light shielding portion may be selectively designed in combination with the arrangement of the support pillars in the display panel.
In an embodiment, fig. 7 is a schematic top view of another alternative implementation of a display panel according to an embodiment of the present disclosure. As shown in fig. 7, the light-shielding layer Z is an integral structure. The shading layer Z of an integral structure can be overlapped with all the first supporting columns ps1 in the display panel, so that the structure formed by the cathode layer and the supporting columns together can not form a reflection grating, and the rainbow texture phenomenon is improved. Meanwhile, in the embodiment, the shading layer is an integral body, and regional design is not needed according to the position of each first supporting column. In this embodiment, the light shielding layer may be first formed on the protective cover plate, and then the protective cover plate with the light shielding layer attached thereto is attached to the semi-finished display panel, i.e., the semi-finished display panel is a panel having completed the processes of the anode, the light emitting layer, the cathode layer, and the like on the substrate. Because the light shield layer is a whole, guarantee that the light shield layer can cover each first support post, can reduce the requirement to light shield layer and first support post counterpoint accuracy when laminating to a certain extent, technology is simpler.
Further, the light shield layer is an overall structure, and the light shield layer can include a plurality of openings that expose light emitting device, can realize that light shield layer and display panel in whole first support column overlap to guarantee that the structure that cathode layer and support column constitute jointly can not form reflection grating, improved rainbow line phenomenon. Simultaneously, can guarantee that the light shield layer evenly distributed in the display area, guarantee that display panel's each position department shows luminance homogeneous.
In an embodiment, fig. 8 is a schematic top view of another alternative implementation of a display panel according to an embodiment of the present disclosure. As shown in fig. 8, one light shielding portion B overlaps only one first support pole ps1 in the direction perpendicular to the plane of the substrate, and each light shielding portion B is independent of the other. In the embodiment, the corresponding shading part is arranged at the position of the first support column, so that the shading part is ensured to shade the structure formed by the first support column and the cathode layer, the cathode layer and the support part are prevented from being matched to form a reflection grating structure, and the rainbow texture phenomenon can be improved. Meanwhile, each shading part is arranged to be mutually independent, so that the minimum total area of the shading parts arranged in the display area is ensured, the shading of the shading parts on light rays emitted by the light-emitting device during display can be weakened, and the influence of the arrangement of the shading parts on the brightness of the display panel is avoided.
It should be noted that the supporting pillars are shown in fig. 4 to 8 as being circular in top view. The shape of the supporting column is not limited in the embodiment of the invention, and optionally, the supporting column can be in any shape such as a square shape, a long strip shape and the like when viewed from a top view angle. The arrangement of the supporting pillars in the drawings of the above embodiments is only for illustrating the corresponding relationship between the supporting pillars and the light shielding portions, and is not intended to limit the invention.
Optionally, in the display panel provided in the embodiment of the present invention, a manufacturing material of the light shielding layer includes at least one of metal chromium, chromium oxide, and black resin. The shading layer made of any one of the materials can absorb light, so that the light emitted to the panel is shaded, and the light is prevented from being reflected on the shading layer.
Optionally, in the display panel provided in the embodiment of the present invention, the display panel includes a display area and a non-display area, and in the display area, the arrangement density of the support pillars is greater than or equal to 20%. The support column can play the supporting role to display panel's structure, promotes display panel's structural strength. The display panel provided by the embodiment of the invention can be suitable for manufacturing a rigid display panel, the arrangement density of the support columns is high enough to ensure the reliability of the structural strength of the display panel, and meanwhile, the shading part is arranged to be overlapped with at least part of the first support columns in the support columns, so that the structure formed by the cathode layer and the support columns together can not scatter light in at least part of the area of the display panel, the cathode layer and the support parts are prevented from being matched to form a reflection grating structure, and the rainbow texture phenomenon can be improved.
In an embodiment, fig. 9 is a schematic top view of another alternative implementation of a display panel according to an embodiment of the present disclosure. As shown in fig. 9, the display panel further includes a protective cover 103, and the light shielding layer Z is located on a side of the protective cover 103 close to the cathode layer c. As illustrated in the figure, the display panel further includes an encapsulation structure 104, and optionally, the encapsulation structure 104 is a rigid encapsulation. In this embodiment, the light shielding layer is located on one side of the protective cover plate close to the cathode layer, and the light shielding layer may be fabricated after the packaging process, or the light shielding layer may be fabricated on the protective cover plate and then attached to another structure of the display panel. The arrangement of the light shielding layer in the embodiment does not change the manufacturing process of other structures of the display panel, and the manufacturing is simple.
Based on the same inventive concept, an embodiment of the present invention further provides a display apparatus, and fig. 10 is a schematic diagram of the display apparatus provided in the embodiment of the present invention. As shown in fig. 10, the display device includes a display panel 100 provided in any embodiment of the present invention. The specific structure of the display panel 100 has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 10 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A display panel, comprising:
the device comprises a substrate and a plurality of supporting columns, wherein the supporting columns are positioned on one side of the substrate;
the cathode layer is positioned on one side of the support columns far away from the substrate, the support columns comprise first support columns, and the first support columns are covered by the cathode layer in the direction perpendicular to the plane of the substrate;
the light shielding layer is positioned on one side, far away from the support columns, of the cathode layer and comprises a plurality of light shielding parts, and at least part of the first support columns are overlapped with the light shielding parts in the direction perpendicular to the plane of the substrate;
the first support pillar comprises a first sub-first support pillar and a second sub-first support pillar, and in the direction perpendicular to the plane of the substrate, the first sub-first support pillar overlaps with the shading part, so that at least part of the cathode layer above the first sub-first support pillar is shaded by the shading part;
the second sub-first support post does not overlap with the light shielding portion.
2. The display panel according to claim 1, wherein the display panel comprises a display area and a non-display area, and the second sub-first support columns are non-uniformly distributed in the display area.
3. The display panel according to claim 1, wherein the light shielding portion covers the first support column overlapped therewith in a direction perpendicular to a plane of the substrate.
4. The display panel according to claim 1, wherein one of the light shielding portions overlaps at least one of the first support columns in a direction perpendicular to a plane in which the substrate is located.
5. The display panel according to claim 4, wherein the light shielding layer is a unitary structure.
6. The display panel according to claim 1, wherein one of the light-shielding portions overlaps only one of the first support columns in a direction perpendicular to a plane of the substrate, and each of the light-shielding portions is independent of the other.
7. The display panel according to claim 1,
the manufacturing material of the light shielding layer comprises at least one of metal chromium, chromium oxide and black resin.
8. The display panel according to claim 1, wherein the display panel comprises a display region and a non-display region, and wherein the support columns are disposed at a density of 20% or more in the display region.
9. The display panel according to claim 1, characterized by further comprising:
and the light shielding layer is positioned on one side, close to the cathode layer, of the protective cover plate.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN201911299742.8A CN111048695B (en) | 2019-12-17 | 2019-12-17 | Display panel and display device |
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| CN201911299742.8A CN111048695B (en) | 2019-12-17 | 2019-12-17 | Display panel and display device |
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| CN114038895B (en) * | 2021-06-22 | 2024-04-30 | 昆山国显光电有限公司 | Display panel and display device |
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| KR102373329B1 (en) * | 2015-04-30 | 2022-03-11 | 삼성디스플레이 주식회사 | Organic light emitting diode display |
| KR102610023B1 (en) * | 2016-09-30 | 2023-12-06 | 삼성디스플레이 주식회사 | Display apparatus and method for manufacturing the same |
| CN109301082B (en) * | 2017-07-25 | 2021-08-20 | 上海和辉光电股份有限公司 | Display panel and display device |
| CN110071158B (en) * | 2019-04-29 | 2021-08-31 | 上海天马有机发光显示技术有限公司 | Mask and organic light-emitting display panel |
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