Display panel and display device

Abstract

The present application discloses a display panel and a display device, relating to the field of display technologies. The display panel includes support columns, electrode assemblies, and magnetic light-shielding particles. The support columns are made of a transparent material. One end of the support column is connected to the first substrate, and the other end of the support column faces the second substrate. The support columns are disposed between adjacent light-emitting units. The electrode assemblies are provided corresponding to the support columns one by one. The magnetic light-shielding particles are disposed in the liquid crystal cell and are distributed in the regions corresponding to the support columns. Wherein, the included angle between the side surface of the support column and the first substrate is an acute angle. When the electrode assemblies are energized, the electrode assemblies generate a magnetic field perpendicular to the first substrate, and the magnetic light-shielding particles are adsorbed onto the surface of the support column under the action of the magnetic field. Through the above design, it is possible to achieve the switching between two modes of anti-peeking and sharing mode without increasing the thickness of the display panel.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly to a display panel and a display device. Background Art

[0002] With the continuous popularization and use of display devices, in life, study, and work, people use displays more and more frequently, and the personal information carried by the displays is also increasing. Moreover, users increasingly attach importance to the protection of personal information. Therefore, the concept of anti-peeping has gradually been valued by users.

[0003] The commonly used anti-peeping function is achieved by pasting an anti-peeping film on the display, but this anti-peeping method is non-switchable. In addition, commonly, on the basis of an existing display, a dimming box is added to achieve the switching between the anti-peeping and sharing modes. However, this method will greatly increase the thickness of the display. Therefore, how to achieve the switching between the anti-peeping and sharing modes without affecting the thickness of the display is a difficulty that those skilled in the art need to overcome. Summary of the Invention

[0004] The purpose of the present application is to provide a display panel and a display device, which can achieve the switching between two modes of anti-peeping and sharing mode without increasing the thickness of the display panel.

[0005] The present application discloses a display panel, which includes a first substrate and a second substrate arranged opposite to each other, and a liquid crystal cell disposed between the first substrate and the second substrate. A plurality of light-emitting units are spaced apart and disposed on the first substrate or the second substrate. The display panel further includes support columns, an electrode assembly, and magnetic light-shielding particles. The support columns are made of a transparent material. One end of the support column is connected to the first substrate, and the other end of the support column faces the second substrate, and the support column is disposed between adjacent light-emitting units. The electrode assembly is disposed corresponding to the support column one by one. The magnetic light-shielding particles are disposed in the liquid crystal cell and distributed in the area corresponding to the support column. Wherein, the included angle between the side surface of the support column and the first substrate is an acute angle. When the electrode assembly is energized, the electrode assembly generates a magnetic field perpendicular to the first substrate, and the magnetic light-shielding particles are adsorbed to the surface of the support column under the action of the magnetic field.

[0006] Optionally, the electrode assembly includes a first electrode and a second electrode. The first electrode is disposed on the side of the first substrate facing the second substrate, and the second electrode is disposed on the side of the second substrate facing the first substrate and is disposed opposite to the first electrode.

[0007] Optionally, the electrode assembly is an electromagnetic coil, and the electromagnetic coil is wound around the corresponding support column.

[0008] Optionally, the side surface of the support column is a stepped surface.

[0009] Optionally, the display panel includes a first partition wall and a second partition wall made of a transparent material. Two ends of the first partition wall are respectively connected to the first substrate and the second substrate, and two ends of the second partition wall are respectively connected to the first substrate and the second substrate. The first partition wall and the second partition wall are arranged side by side between adjacent light-emitting units, and the support column is arranged between the first partition wall and the second partition wall; a cavity is formed between the first partition wall and the second partition wall, and the magnetic light-shielding particles are arranged in the cavity.

[0010] Optionally, a gap is provided between the support column and the second substrate.

[0011] Optionally, the support column abuts against the second substrate. The display panel includes a third partition wall made of a transparent material. The third partition wall is arranged between the light-emitting unit and the adjacent support column. A cavity is formed between the third partition wall and the support column, and the magnetic light-shielding particles are arranged in the cavity.

[0012] Optionally, the support column abuts against the second substrate, and the support columns on both sides of the light-emitting unit are combined to form an annular structure surrounding the light-emitting unit; a cavity is formed between the support columns on both sides of the light-emitting unit, and the magnetic light-shielding particles are arranged in the cavity.

[0013] Optionally, the magnetic light-shielding particles are of an integral structure; or the magnetic light-shielding particles include a magnetic spherical core and a light-shielding outer shell, and the light-shielding outer shell wraps the magnetic spherical core.

[0014] The present application also discloses a display device, which includes a driving circuit and the display panel as described above. The driving circuit drives the light-emitting units and the electrode assemblies in the display panel.

[0015] In this application, by providing support columns, electrode components, and magnetic light-shielding particles in the display panel, when the display panel needs to be switched to the privacy mode, the electrode components are energized to generate a magnetic field. Since the magnetic light-shielding particles are magnetic and opaque, the magnetic light-shielding particles move towards the support columns under the action of the magnetic field. Due to the inclined surface on the side of the support columns, the magnetic light-shielding particles can be adsorbed on the surface of the support columns under the action of the magnetic field, preventing the light emitted by the light-emitting units from passing through the support columns and achieving the privacy effect. When the display panel needs to be switched to the sharing mode, the power supply of the electrode components is disconnected. At this time, the electrode components cannot generate a magnetic field, and the magnetic light-shielding particles are dispersed in the liquid crystal cell and are not attached to the surface of the support columns. The light emitted by the light-emitting units can pass through the support columns, thus achieving the display sharing effect. Moreover, since the added support columns, electrode components, and magnetic light-shielding particles are all provided inside the display panel, the thickness of the display panel will not increase. Description of the Drawings

[0016] The accompanying drawings included are used to provide a further understanding of the embodiments of the present application, which form a part of the specification, are used to illustrate the implementation manners of the present application, and are used to explain the principles of the present application together with the written description. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0017] Figure 1 is a schematic diagram of a display device provided by an embodiment of the present application;

[0018] Figure 2 is a cross-sectional schematic diagram of a first state of a display panel provided by an embodiment of the present application;

[0019] Figure 3 is a cross-sectional schematic diagram of a second state of a display panel provided by an embodiment of the present application;

[0020] Figure 4 is a schematic diagram of a display panel using another electrode component provided by an embodiment of the present application;

[0021] Figure 5 is a cross-sectional schematic diagram of a magnetic light-shielding particle provided by an embodiment of the present application;

[0022] Figure 6 is a cross-sectional schematic diagram of a cavity design provided by an embodiment of the present application;

[0023] Figure 7 is a cross-sectional schematic diagram of another cavity design provided by an embodiment of the present application;

[0024] Figure 8It is a cross-sectional schematic diagram of another cavity design provided by an embodiment of the present application;

[0025] Figure 9 It is a plan schematic diagram of another cavity design provided by an embodiment of the present application;

[0026] Figure 10 It is a plan schematic diagram of a support column design provided by an embodiment of the present application.

[0027] Among them, 10 is a display device; 100 is a display panel; 110 is a first substrate; 120 is a second substrate; 130 is a support column; 140 is an electrode assembly; 141 is a first electrode; 142 is a second electrode; 150 is magnetic light-shielding particles; 151 is a magnetic spherical core; 152 is a light-shielding outer shell; 171 is a first partition wall; 172 is a second partition wall; 173 is a third partition wall; 180 is a light-emitting unit; 190 is a liquid crystal cell; 200 is a cavity; 300 is a driving circuit. Detailed implementation manners

[0028] It should be understood that the terms, specific structures and functional details used here are only for describing specific embodiments and are representative. However, the present application can be specifically implemented in many alternative forms and should not be construed as being limited only to the embodiments described herein.

[0029] In addition, unless otherwise clearly specified and defined, "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0030] The present application will be further described below with reference to the accompanying drawings and optional embodiments.

[0031] As Figure 1 shown, an embodiment of the present application discloses a display device. The display device 10 includes a driving circuit 300 and a display panel 100. The driving circuit 300 drives the light-emitting unit 180 in the display panel 100, that is, controls the display panel 100 to emit light and display an image. The driving circuit 300 also controls the electrode assembly 140 in the display panel 100 to cut off or supply power to the electrode assembly 140 according to user needs, so as to realize the switching between the sharing mode and the anti-peeping mode of the display panel 100. The display panel 100 is a liquid crystal panel. The detailed design of the display panel 100 refers to the following specific embodiments.

[0032] As Figure 2 and Figure 3As shown, as an implementation manner of the electrode assembly in the embodiment of the present application, wherein Figure 2 is a schematic diagram of the electrode assembly in the display panel when it is not powered on, Figure 3 is a schematic diagram of the electrode assembly in the display panel when it is powered on. As an embodiment provided by the present application, the display panel 100 includes a first substrate 110 and a second substrate 120 disposed opposite to each other, and a liquid crystal cell 190 disposed between the first substrate 110 and the second substrate 120. A plurality of spaced-apart light-emitting units 180 are provided on the first substrate 110 or the second substrate 120. The first substrate 110 is a color filter substrate or an array substrate. Correspondingly, the second substrate 120 is an array substrate or a color filter substrate; the light-emitting unit 180 can be disposed on the color filter substrate or can be disposed on the array substrate by using the COA (Color Filter On Array) technology.

[0033] The display panel 100 further includes support columns 130, an electrode assembly 140, and magnetic light-shielding particles 150. The support columns 130 are made of a transparent material. One end of the support column 130 is connected to the first substrate 110, and the other end of the support column 130 faces the second substrate 120, and can either abut against the second substrate 120 or have a gap therebetween; moreover, the support columns 130 are also disposed between adjacent light-emitting units 180. The electrode assembly 140 is provided in one-to-one correspondence with the support columns 130; the magnetic light-shielding particles 150 are disposed in the liquid crystal cell 190 and are distributed in the area corresponding to the support columns 130; wherein, the side surface of the support column 130 is an inclined surface, and the included angle between the side surface of the support column 130 and the first substrate 110 is an acute angle; when the electrode assembly 140 is powered on, the electrode assembly 140 generates a magnetic field perpendicular to the first substrate 110, and the magnetic light-shielding particles 150 are adsorbed to the surface of the support column 130 under the action of the magnetic field.

[0034] In the embodiment of the present application, by providing support columns 130, electrode assemblies 140, and magnetic light-shielding particles 150 in the display panel 100, when the display panel 100 needs to be switched to the privacy mode, the electrode assembly 140 is energized, causing the electrode assembly 140 to generate a magnetic field. Since the magnetic light-shielding particles 150 are magnetic and light-impermeable, the magnetic light-shielding particles 150 move towards the support columns 130 under the action of the magnetic field at this time. Due to the inclined surface on the side of the support column 130, the magnetic light-shielding particles 150 can be adsorbed on the surface of the support column 130 under the action of the magnetic field, preventing the light emitted by the light-emitting unit 180 from passing through the support column 130, thus achieving the privacy effect; when the display panel 100 needs to be switched to the sharing mode, the power supply of the electrode assembly 140 is disconnected. At this time, the electrode assembly 140 cannot generate a magnetic field, and the magnetic light-shielding particles 150 are dispersed in the liquid crystal cell 190 and are not attached to the surface of the support column 130. The light emitted by the light-emitting unit 180 can pass through the support column 130, thereby achieving the display sharing effect. Moreover, since the added support columns 130, electrode assemblies 140, and magnetic light-shielding particles 150 are all provided within the display panel 100, the thickness of the display panel 100 will not increase.

[0035] In this embodiment, the electrode assembly 140 is designed with opposite electrodes. At this time, the electrode assembly 140 is composed of a first electrode 141 and a second electrode 142. The first electrode 141 is disposed on one side of the first substrate 110 facing the second substrate 120, and the second electrode 142 is disposed on one side of the second substrate 120 facing the first substrate 110, facing the first electrode 141.

[0036] When the first electrode 141 and the second electrode 142 are energized, a magnetic field is generated between the first electrode 141 and the second electrode 142. Under the action of the magnetic field, the magnetic light-shielding particles 150 move towards the first substrate 110; since the support column 130 is within the magnetic field range, the magnetic light-shielding particles 150 will finally adhere to the surface of the support column 130, forming a light-shielding layer on the surface of the support column 130, preventing the light emitted by the light-emitting unit 180 from the side from passing through, and achieving the privacy effect.

[0037] Specifically, the first electrode 141 and the second electrode 142 can both adopt a planar coil structure, or they can both be electromagnets, electromagnetic plates, or both can be energized coils, or one of them is an electromagnet and the other is an energized coil. When energized, they generate opposite electricities to form a magnetic field, and the magnetism of the magnetic light-shielding particles 150 is opposite to the magnetism generated by the energization of the first electrode 141. In this way, when the first electrode 141 and the second electrode 142 are energized, the magnetic light-shielding particles 150 can move towards the direction of the first electrode 141.

[0038] Optionally, when both the first electrode 141 and the second electrode 142 use energized coils, when the energized coils are powered off, the magnetism disappears immediately and the magnetic light-shading particles 150 immediately fall off the surface of the support column 130, thereby avoiding the problem of switching mode delay. Moreover, the energized coil is a planar spiral structure. The closer to the center of the energized coil, the smaller the spacing between the wires, and the stronger the magnetic field generated. Therefore, the magnetic field generated by the first electrode 141 and the second electrode 142 gradually increases from the outside to the inside. Therefore, the force acting on the magnetic light-shading particles 150 is inclined toward the center of the energized coil, and the direction of this force forms a larger angle with the side of the support column 130, thereby increasing the force of the magnetic light-shading particles 150 on the side of the support column, so that the magnetic light-shading particles 150 can be stably attached to the side of the support column 130 under the action of the magnetic field.

[0039] In this embodiment, the side surface of the support column 130 can be designed as a slope, a step, or a wavy line; all of which can enable the magnetic light-shading particles 150 to be adsorbed to the side surface of the support column 130 under the action of the magnetic field; especially when the side surface of the support column 130 is in a step shape, when the first electrode 141 and the second electrode 142 are energized, the magnetic light-shading particles 150 are distributed on the slope and step surfaces of the support column under the action of the magnetic field, which, on the one hand, has a larger shading area and a better shading effect; on the other hand, it can also provide a buffering effect on the magnetic light-shading particles 150, thereby preventing the magnetic light-shading particles from crowding in one place, making the magnetic light-shading particles 150 unevenly distributed on the side surface of the support column 130.

[0040] Moreover, in this embodiment, all the first electrodes 141 and all the second electrodes 142 in the display panel 100 are connected to the same control line, and the power supply status of all the first electrodes 141 and all the second electrodes 142 is simultaneously controlled by the control line to achieve switching between the anti-peeping mode and the sharing mode.

[0041] In this embodiment, the orthographic projections of the first electrode 141 and the second electrode 142 on the first substrate 110 overlap, and when the first electrode 141 and the second electrode 142 are powered on, the first electrode 141 and the second electrode 142 can generate a uniform magnetic field. Moreover, the orthographic projection area of ​​the support column 130 on the first substrate 110 is smaller than the orthographic projection area of ​​the first electrode 141 on the first substrate 110. At this time, the areas of the first electrode 141 and the second electrode 142 are both larger than the maximum cross-sectional area of ​​the support column 130, so that the entire support column 130 is within the magnetic field range, and the support column 130 is subjected to a uniform magnetic field effect everywhere, thereby avoiding the problem of poor shading effect caused by a small number of magnetic shading particles 150 locally adsorbed by the support column 130.

[0042] like Figure 4As shown, as an implementation manner of the electrode assembly in the embodiment of the present application, the difference from the above implementation manner is that the electrode assembly 140 in this implementation manner adopts a spiral coil design, that is, the electrode assembly 140 is an electromagnetic coil, and the electromagnetic coil is wound around the corresponding support column 130.

[0043] When the electrode assembly 140 is energized, according to the right-hand screw rule, by controlling the current direction of the spiral coil, the magnetic field direction can be further controlled, so that the magnetic light-shielding particles 150 adhere to the surface of the support column 130 under the action of the magnetic field.

[0044] Further, in this implementation manner, the side surface of the support column 130 is a stepped surface, specifically a spiral stepped surface, and the spiral coil is wound along the stepped surface, so that the spiral coil wound around the support column 130 will not fall off due to gravity or external forces.

[0045] For the magnetic light-shielding particles 150 in the embodiment of the present application, each magnetic light-shielding particle 150 can adopt an integral structure, that is, the magnetic light-shielding particle 150 as a whole is composed of a material that simultaneously has magnetism and light-shielding properties, or is mixed by a material with magnetism and a material with light-shielding properties.

[0046] Or, as Figure 5 shown, the magnetic light-shielding particles 150 adopt a composite layer structure, specifically including a magnetic spherical core 151 and a light-shielding outer shell 152, and the light-shielding outer shell 152 wraps the magnetic spherical core 151, that is, the inside of the magnetic light-shielding particle 150 is composed of a magnetic material, and the outer surface of the magnetic light-shielding particle 150 is composed of a light-shielding material.

[0047] In order to improve the aggregation of the magnetic light-shielding particles 150, the magnetic light-shielding particles 150 in the liquid crystal cell 190 are all enclosed in a cavity 200 in the embodiment of the present application.

[0048] As an implementation manner of a cavity in the embodiment of the present application, as Figure 6 shown, the display panel 100 includes a first partition wall 171 and a second partition wall 172 made of a transparent material. The two ends of the first partition wall 171 are respectively connected to the first substrate 110 and the second substrate 120, and the two ends of the second partition wall 172 are respectively connected to the first substrate 110 and the second substrate 120. The first partition wall 171 and the second partition wall 172 are arranged in parallel between adjacent light-emitting units 180, and the support column 130 is arranged between the first partition wall 171 and the second partition wall 172; a cavity 200 is formed between the first partition wall 171 and the second partition wall 172, and the magnetic light-shielding particles 150 are arranged in the cavity 200.

[0049] In this embodiment, the cavity 200 is located between adjacent light-emitting units 180. After the magnetic light-shielding particles 150 are disposed in the cavity 200, the magnetic light-shielding particles 150 will not spread to the liquid crystal region corresponding to the light-emitting unit 180, thus avoiding the problem of light blocking and causing the display screen to become dim. Moreover, since there is a black matrix between adjacent light-emitting units 180, the cavity 200 and the black matrix are in the same vertical space. Therefore, neither the anti-peeping mode nor the sharing mode will cause a reduction in the aperture ratio of the display panel 100.

[0050] In this embodiment, since the support column 130 is located in the cavity 200 and the magnetic light-shielding particles 150 are distributed on both sides of the support column 130, when the electrode assembly 140 is energized, the magnetic light-shielding particles 150 are adsorbed to the side of the support column 130 close to the first partition wall 171 and the side of the support column 130 close to the second partition wall 172, so that both sides of the support column 130 can block light. The double light-blocking design ensures the blocking of light and makes the anti-peeping effect better. When the electrode assembly 140 is de-energized, the magnetic light-shielding particles 150 are detached from the two side surfaces of the support column 130 and are scattered in the cavity 200.

[0051] Optionally, a gap is provided between the support column 130 and the second substrate 120. At this time, the magnetic light-shielding particles 150 can diffuse from one side of the support column 130 to the other side. With the switching between the anti-peeping mode and the sharing mode, if the electrode assembly 140 is abnormal and the magnetic field is uneven, the magnetic light-shielding particles 150 can diffuse to the side with a stronger magnetic field in the support column 130. In this way, when the electrode assembly 140 is energized, the magnetic light-shielding particles 150 can move more quickly to switch to the anti-peeping mode. Of course, in this embodiment, the support column 130 can also be directly in contact with the second substrate 120 to prevent the magnetic light-shielding particles 150 from diffusing from one side of the support column 130 to the other side.

[0052] As an embodiment of a cavity in the embodiments of the present application, as Figure 7 shown, the support column 130 is in contact with the second substrate 120. The display panel 100 includes a third partition wall 173 made of a transparent material. The third partition wall 173 is disposed between the light-emitting unit 180 and one of the adjacent support columns 130. A cavity 200 is formed between the third partition wall 173 and the support column 130, and the magnetic light-shielding particles 150 are disposed in the cavity 200.

[0053] In this embodiment, fewer partition walls are required, and the space of the cavity 200 is smaller, making the distribution of the magnetic light-shielding particles 150 more concentrated. Moreover, the magnetic light-shielding particles 150 in the cavity 200 only need to adhere to one side of the support pillar 130 under the action of the magnetic field, which improves the aggregation density of the magnetic light-shielding particles 150 on one side of the support pillar 130 and is beneficial to improving the light-shielding effect.

[0054] As an embodiment of a cavity in the embodiments of the present application, as Figure 8 and Figure 9 shown, the support pillar 130 abuts against the second substrate 120, and the support pillars 130 on both sides of the light-emitting unit 180 adopt two opposite C-shaped or U-shaped structures, and the two sides of the two support pillars 130 are mutually attached, so that the support pillars 130 on both sides of the light-emitting unit 180 are combined to form an annular structure surrounding the light-emitting unit 180; a cavity 200 is formed between the support pillars 130 on both sides of the light-emitting unit 180, and the magnetic light-shielding particles 150 are arranged in the cavity 200.

[0055] In this embodiment, there is no need to additionally provide partition walls, and the cavity 200 is directly formed by using the support pillars 130 on both sides of the light-emitting unit 180, thereby simplifying the structural design. At this time, each light-emitting unit 180 is surrounded by an annular support assembly, and the orthographic projection of the support assembly on the first substrate 110 can be a circular ring, a square ring, or other shapes. In addition, when the electrode assembly 140 is conductive, since there are side walls of two support structures between two adjacent light-emitting units 180, which is equivalent to two light-shielding layers, the anti-peeping effect can be greatly ensured.

[0056] In addition, for the specific design of the support pillar 130 in the embodiments of the present application, as Figure 10 shown, the support pillar 130 can be an integral structure, that is, the support pillar 130 is a continuous structure surrounding one side, two sides, three sides or four sides of the light-emitting unit 180; moreover, when the support pillar 130 is a structure surrounding at least two sides of the light-emitting unit 180, the electrode assemblies 140 on each side of the light-emitting unit 180 can be respectively driven, so that different anti-peeping switching modes can be controlled as needed to realize the switching of the left and right side anti-peeping, the up and down side anti-peeping, the three-side anti-peeping and the four-side anti-peeping modes. Of course, a plurality of support pillars 130 can be arranged on one side of the light-emitting unit 180, and the plurality of support pillars 130 are arranged in at least two sides.

[0057] In addition, the inventive concept of the present application can form a very large number of implementation schemes, but the space of the application documents is limited and cannot list them all. Therefore, on the premise of no conflict, the above-described embodiments or technical features can be arbitrarily combined to form new embodiments, and after the combination of the embodiments or technical features, the original technical effect will be enhanced.

[0058] The above content is a further detailed description of the present application in combination with specific optional implementation manners. It cannot be determined that the specific implementation of the present application is only limited to these descriptions. For those of ordinary skill in the technical field to which the present application pertains, without departing from the concept of the present application, several simple deductions or substitutions can still be made, and all should be regarded as falling within the protection scope of the present application.

Claims

1. A display panel, comprising a first substrate and a second substrate which are oppositely arranged, and a liquid crystal cell disposed between the first substrate and the second substrate, wherein a plurality of light-emitting units are arranged at intervals on the first substrate or the second substrate, and is characterized in that, The display panel further includes: Support columns, made of a transparent material, one end of each support column is connected to the first substrate, the other end of each support column faces the second substrate, and the support columns are arranged between adjacent light-emitting units; Electrode assemblies, arranged in one-to-one correspondence with the support columns; and Magnetic light-shielding particles, arranged in the liquid crystal cell and distributed in the area corresponding to the support columns; Wherein, the angle between the side surface of the support column and the first substrate is an acute angle. When the electrode assembly is energized, the electrode assembly generates a magnetic field perpendicular to the first substrate, and the magnetic light-shielding particles are adsorbed to the surface of the support column under the action of the magnetic field.

2. The display panel according to claim 1, characterized in that, The electrode assembly includes a first electrode and a second electrode. The first electrode is arranged on the side of the first substrate facing the second substrate, and the second electrode is arranged on the side of the second substrate facing the first substrate, facing the first electrode.

3. The display panel according to claim 1, wherein The electrode assembly is an electromagnetic coil, and the electromagnetic coil is wound around the corresponding support column.

4. The display panel according to claim 2 or 3, characterized in that, The side surface of the support column is a stepped surface.

5. The display panel according to claim 1, wherein The display panel includes a first partition wall and a second partition wall made of a transparent material. Both ends of the first partition wall are respectively connected to the first substrate and the second substrate. Both ends of the second partition wall are respectively connected to the first substrate and the second substrate. The first partition wall and the second partition wall are arranged in parallel between adjacent light-emitting units, and the support columns are arranged between the first partition wall and the second partition wall; A cavity is formed between the first partition wall and the second partition wall, and the magnetic light-shielding particles are arranged in the cavity.

6. The display panel according to claim 3, wherein A gap is provided between the support column and the second substrate.

7. The display panel according to claim 1, wherein The support column abuts against the second substrate; The display panel includes a third partition wall made of a transparent material. The third partition wall is arranged between the light-emitting unit and the adjacent support column. A cavity is formed between the third partition wall and the support column, and the magnetic light-shielding particles are arranged in the cavity.

8. The display panel according to claim 1, wherein The support column abuts against the second substrate, and the support columns on both sides of the light-emitting unit are combined to form an annular structure surrounding the light-emitting unit; A cavity is formed between the support columns on both sides of the light-emitting unit, and the magnetic light-shielding particles are arranged in the cavity.

9. The display panel according to claim 1, wherein, The magnetic light-shielding particles are of an integral structure; or The magnetic light-shielding particles include a magnetic spherical core and a light-shielding outer shell, and the light-shielding outer shell wraps the magnetic spherical core.

10. A display device, characterized in that, Including a driving circuit and a display panel according to any one of claims 1-9, wherein the driving circuit drives the light-emitting units and the electrode assemblies in the display panel.

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