CN114335110A

CN114335110A - Display panel and display device

Info

Publication number: CN114335110A
Application number: CN202111641129.7A
Authority: CN
Inventors: 张琳; 陈娴
Original assignee: Wuhan Tianma Microelectronics Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-04-12

Abstract

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a substrate, a plurality of light-emitting units, a plurality of shading units and a plurality of color filtering units, wherein the plurality of light-emitting units, the plurality of shading units and the plurality of color filtering units are sequentially arranged on one side of the substrate; the shading unit is positioned between two adjacent color filter units, and the color filter units cover the light-emitting units along the thickness direction of the display panel; the display panel further comprises a light ray adjusting unit, the light ray adjusting unit is in contact with the color filter unit, and the refractive index of the light ray adjusting unit is larger than that of the color filter unit; the light ray adjusting unit at least covers the side wall of the shading unit and comprises an adjusting side wall, and the plane of the adjusting side wall is intersected with the plane of the substrate base plate. Through setting up the light path of the external environment light of light adjustment unit adjustment incident to display panel and the light path of the light of adjustment luminescence unit outgoing, reduce the exitance of external environment light and improve display panel's side view angle light-emitting simultaneously, guarantee display panel's display effect.

Description

Display panel and display device

Technical Field

The embodiment of the invention relates to the technical field of display panels, in particular to a display panel and a display device.

Background

An OLED (Organic Light Emitting Diode) display panel is a self-luminous display device, which does not need a backlight source, and is thinner and lighter than a conventional liquid crystal display panel. Although the OLED display panel has high color purity and color gamut, the OLED display panel is prone to color separation during the display process, which affects the display effect of the display panel.

Disclosure of Invention

The embodiment of the invention provides a display panel and a display device, wherein the light path of external environment light incident to the display panel is adjusted by additionally arranging a light adjusting unit, and the light path of emergent light of a light emitting unit is adjusted, so that the display effect of the display panel is improved.

In a first aspect, an embodiment of the present invention provides a display panel, including a substrate, and a plurality of light emitting units, a plurality of light shielding units, and a plurality of color filtering units, which are sequentially located on one side of the substrate; the shading unit is positioned between two adjacent color filter units, and the color filter units cover the light emitting units along the thickness direction of the display panel;

the display panel further comprises a light ray adjusting unit, the light ray adjusting unit is in contact with the color filter unit, and the refractive index of the light ray adjusting unit is larger than that of the color filter unit; the light ray adjusting unit at least covers the side wall of the shading unit and comprises an adjusting side wall, and the plane of the adjusting side wall is intersected with the plane of the substrate base plate.

In a second aspect, an embodiment of the present invention further provides a display device, including the display panel according to any one of the first aspects.

The invention provides a display panel, which comprises a plurality of light-emitting units, a plurality of shading units and a plurality of color filter units, wherein the light-emitting units, the shading units and the color filter units are sequentially arranged along the thickness direction of the display panel; the shading unit is positioned between two adjacent color filtering units to avoid light crosstalk between emergent rays with different colors; the color filter unit covers the light emitting unit to ensure the color purity of the emergent light of the light emitting unit. The display panel also comprises a light ray adjusting unit, the light ray adjusting unit at least covers the side wall of the shading unit and is in contact with the color filter unit, the plane of the adjusting side wall of the light ray adjusting unit is intersected with the plane of the substrate base plate, and part of light rays emitted by the light emitting unit enter the adjusting side wall of the light ray adjusting unit. Meanwhile, the external environment light rays which are incident to the light ray adjusting unit through the color filtering unit are deflected, so that the reflection of the external environment light rays is reduced, and the display effect of the display panel is ensured.

Drawings

To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description, although being some specific embodiments of the present invention, can be extended and extended to other structures and drawings by those skilled in the art according to the basic concepts of the device structure, the driving method and the manufacturing method disclosed and suggested by the various embodiments of the present invention, without making sure that these should be within the scope of the claims of the present invention.

FIG. 1 is a schematic diagram of a display panel according to the prior art;

fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

fig. 3 is a schematic top view of a display panel according to an embodiment of the invention

Fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram 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 present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying 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 basic idea disclosed and suggested by the embodiments of the present invention, are within the scope of the present invention.

Fig. 1 is a schematic structural diagram of a display panel in the prior art, and as shown in fig. 1, along a thickness direction of the display panel 10, the display panel 10 sequentially includes a substrate 11, a light emitting unit 12 located on one side of the substrate 11, color resistance units 13, and a light shielding unit 14 located between adjacent color resistance units 13. In the display panel 10 of the prior art, the light emitted from the light emitting unit 12 passes through the light shielding unit 14 with a certain thickness, which may block the light emitted from a large angle, and affect the display brightness of the display panel 10 at a large viewing angle. Meanwhile, when external ambient light incident on the display panel 10 is reflected in the display panel 10, single-side diffraction is easily generated at the light shielding unit 14, and the diffracted light and the reflected light exist at the same time, so that a color separation phenomenon is easily generated, and the display effect of the display panel 10 is seriously affected.

In view of the problems of the background art, embodiments of the present invention provide a display panel including a substrate base, and a plurality of light emitting units, a plurality of light blocking units, and a plurality of color filtering units sequentially located at one side of the substrate base; the shading unit is positioned between two adjacent color filter units, and the color filter units cover the light-emitting units along the thickness direction of the display panel; the display panel further comprises a light ray adjusting unit, the light ray adjusting unit is in contact with the color filter unit, and the refractive index of the light ray adjusting unit is larger than that of the color filter unit; the light ray adjusting unit at least covers the side wall of the shading unit and comprises an adjusting side wall, and the plane of the adjusting side wall is intersected with the plane of the substrate base plate. Through setting up the light path of the external environment light of light adjustment unit adjustment incidence to display panel and the light path of the light of adjustment luminescence unit outgoing, reduce the emergence probability of external environment light, improve display panel's side viewing angle light-emitting simultaneously, guarantee display panel's display effect.

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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.

Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention, as shown in fig. vtr2 and fig. 3, a display panel 100 includes a substrate 101, and a plurality of light emitting units 102, a plurality of light shielding units 103, and a plurality of color filtering units 104 sequentially disposed on one side of the substrate 101; the light shielding unit 103 is positioned between adjacent two color filter units 104, and the color filter units 104 cover the light emitting units 102 in a thickness direction (X direction as shown in fig. 2) of the display panel 100; the display panel 100 further includes a light ray adjusting unit 105, the light ray adjusting unit 105 being in contact with the color filter unit 104, a refractive index of the light ray adjusting unit 105 being greater than a refractive index of the color filter unit 104; the light adjusting unit 105 at least covers the sidewall of the light shielding unit 103, and the light adjusting unit 105 includes an adjusting sidewall 106, and a plane of the adjusting sidewall 106 intersects with a plane of the substrate 101.

The substrate 101 may be a rigid material such as glass or silicon wafer, or a flexible material such as ultra-thin glass, metal foil, or polymer plastic material. The light emitting unit 102 may be a red light emitting unit, a green light emitting unit, or a blue light emitting unit with different light emitting colors, and the light emitting unit 102 may also be a white light emitting unit with the same light emitting color, and the color selection of the light emitting unit 102 may be selected according to the actual design requirement, which is not limited in the embodiment of the present invention. The light emitting unit 102 may be an organic light emitting diode, and sequentially includes a stacked structure of an anode, a common organic light emitting layer, and a cathode along a light emitting direction, and a pixel driving circuit is further disposed between the substrate 101 and the light emitting unit 102 to output a driving signal, so as to ensure normal light emitting of the light emitting unit 102. The adjacent light-emitting units 102 further include pixel definition layers 1021, and pixel opening regions of the light-emitting units are formed between the adjacent pixel definition layers 1021 and used for emitting light rays out of the light-emitting units 102. In order to ensure the color purity of the light emitted by the light emitting unit 102, a color filter unit 104 is further disposed in the light emitting direction of the light emitting unit 102, the color filter unit 104 covers the light emitting unit 102, the projection area of the color filter unit 104 on the substrate 101 is larger than the projection area of the light emitting unit 102 on the substrate 101, and the color filter unit 104 can receive the light emitted by the corresponding light emitting unit 102 and filter the light with a color different from that of the color filter unit 104, so that the color purity of the light after passing through the color filter unit 104 is obviously improved, and the display effect of the display panel 100 is ensured. A light shielding unit 103 is further disposed between the color filter units 104 of adjacent different colors, and the light shielding unit 103 is used for avoiding light crosstalk between the emergent light rays of adjacent different colors and ensuring the display effect of the display panel 100. The light shielding unit 103 may be a black matrix or other black material to absorb light incident on the light shielding unit 103. The display panel 100 further includes a light adjusting unit 105, the light adjusting unit 105 may be formed of a transparent material with a high refractive index, the light adjusting unit 105 at least covers a sidewall of the light shielding unit 103, the light adjusting unit 105 includes an adjusting sidewall 106, and a plane of the adjusting sidewall 106 intersects with a plane of the substrate 101. The light adjusting unit 105 is in contact with the color filter unit 104, and the refractive index of the light adjusting unit 105 is greater than that of the color filter unit 104, so that after the external ambient light incident on the display panel 100 is incident on the adjusting sidewall 106 of the light adjusting unit 105, the external ambient light is deflected at the junction of the light adjusting unit 105 and the color filter unit 104 due to the difference between the refractive indexes of the light adjusting unit 105 and the color filter unit 104, and a certain angle exists between the adjusting sidewall 106 of the light adjusting unit 105 and the plane of the substrate 101, so that the external ambient light is deflected toward the pixel opening region far away from the light emitting unit 102, i.e., deflected into the pixel defining layer 1021 of the adjacent light emitting unit 102. And then adjust the size of the included angle between the plane of the substrate base plate 101 and the sidewall 106 through reasonable control, make the external environment light avoid as far as possible to incide to the reflective metal layer that is located in the light-emitting unit 102, for example, the anode layer, reduce the external environment light and is emergent after being reflected by the reflective metal layer, and the external environment light of reflection can take place the diffraction phenomenon at the edge of the shading unit 103, diffraction light and reflection light etc. carry out the interference phenomenon of comparatively complicated light, present the various colored veins of all kinds of colors that have certain period, lead to taking place the color separation phenomenon on the color of light, avoid the external environment light that is partly reflected to mix with the light that the light-emitting unit 102 normally emits simultaneously, reduce the display effect influence to the display panel 100. For the light emitted from the light emitting unit 102, part of the light may enter the light adjusting unit 105, and since the refractive indexes of the light adjusting unit 105 and the color filter unit 104 are different, the refractive index of the light adjusting unit 105 is greater than that of the color filter unit 104, and the light may also deflect at the boundary between the light adjusting unit 105 and the color filter unit 104, thereby increasing the light emitted from the side view angle, helping to alleviate the brightness attenuation of the display panel 100 at a large viewing angle, and ensuring the overall display effect of the display panel 100. Exemplarily, a light extraction unit may be further disposed on a side of the color filter unit 104 away from the substrate 101, and materials, features, and positions of the light extraction unit and the light adjustment unit 105 are reasonably matched, so that the light extraction unit may be used as a Micro Lens Pattern (MLP), and the Micro Lens structure may adjust light emitted by the light emitting unit 102 and originally transmitted along a large angle direction to be transmitted along a small angle direction, thereby improving light extraction efficiency of the light emitting unit 102 and increasing light emitting brightness of the display panel 100 in an orthogonal view angle direction.

According to the embodiment of the invention, the light ray adjusting unit is arranged, is in contact with the color filter unit and controls the refractive index of the light ray adjusting unit to be larger than that of the color filter unit, so that the light paths of the external environment light rays incident to the adjusting side wall of the light ray adjusting unit and the light rays emitted by the light emitting unit can be adjusted, and the integral display effect of the display panel is further ensured.

In addition to the above embodiments, the positional relationship between the light ray adjusting unit 105 and the light shielding unit 103 will be described below.

As an alternative, with continued reference to fig. 2 and 3, the light adjusting unit 105 may include a first adjusting section 1051, the first adjusting section 1051 covers a sidewall of the light shielding unit 103, and the adjusting sidewall 106 is a sidewall of the first adjusting section 1051.

The light adjustment unit 105 includes a first adjustment branch 1051, and fig. 3 shows that the shading unit 103 is annularly disposed around the first adjustment branch 1051 of the light adjustment unit 105, for example, the number of external ambient light received by the light adjustment unit 105 and the number of light emitted from the light emitting unit 102 are increased, so as to ensure the adjustment effect of the light adjustment unit 105 on light, and further ensure the display effect of the display panel. The light ray adjusting unit 105 may cover a sidewall of the light shielding unit 103, and the light ray adjusting unit 105 may be formed by an etching process, so as to prevent light rays of an external environment from being diffracted at an edge of the light shielding unit 103 to generate a color separation phenomenon, which affects a display effect of the display panel 100. The covering thickness and the covering angle of the light ray adjusting unit 105 are reasonably set, so that the first adjusting branch 1051 can receive the external environment light ray to adjust the light ray, and the external environment light ray is prevented from being incident to the light emitting unit 102; the first adjustment sub-unit 1051 may also adjust the light emitted from the light emitting unit 102, so as to increase the light emitted from the side view angle, and ensure the display brightness of the display panel 100 at a large viewing angle, thereby ensuring the overall display uniformity of the display panel 100.

As another possible implementation manner, fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the invention, as shown in fig. 4, optionally, the light adjustment unit 105 further includes a second adjustment subsection 1052, the second adjustment subsection 1052 is connected to the first adjustment subsection 1051 and is located at a side of the first adjustment subsection 1051 away from the substrate 101, and the adjustment sidewall 106 includes a sidewall of the first adjustment subsection 1051 and a sidewall of the second adjustment subsection 1052; the light shielding unit 103 comprises a first surface 1031 at a side remote from the substrate base plate 101, and the second adjustment section 1052 covers at least part of the first surface 1031.

Wherein, the light ray adjusting unit 105 further includes a second adjusting portion 1052, the second adjusting portion 1052 is connected to the first adjusting portion 1051 and is prepared by the same preparation process and the same material, the second adjusting portion 1052 is located at a side of the first adjusting portion 1051 away from the substrate 101 and covers at least the first surface 1031 of the light shielding unit 103, the second adjusting portion 1052 may partially cover the first surface 1031, or the second adjusting portion 1052 may completely cover the first surface 1031, as shown in fig. 4, the example of the second adjusting portion 1052 partially covering the first surface 1031 of the light shielding unit 103 is shown, since the light ray adjusting unit 105 is made of transparent material, the second adjusting portion 1052 has an opening on the first surface 1031, so as to reduce part of light rays from exiting through the second adjusting portion 1052 at a gap between adjacent color filter units 104, the probability of not passing through the color filter unit 104 ensures the display effect of the display panel 100. The adjusting sidewall 106 of the light adjusting unit 105 includes a sidewall of the first adjusting branch 1051 and a sidewall of the second adjusting branch 1052, so as to increase the area for receiving the external ambient light and the light emitted from the light emitting unit 102, improve the adjustment of light with more angles, and ensure the display effect of the display panel 100.

As another possible implementation manner, fig. 5 is a schematic structural diagram of another display panel provided in the embodiment of the present invention, as shown in fig. 5, optionally, the second adjustment part 1052 covers the first surface 1031.

The second adjustment element 1052 covers the first surface 1031 of the light shielding unit 103, only the sidewall of the first adjustment element 1051 needs to be etched, and the second adjustment element 1052 does not need to be additionally etched to form an opening, thereby simplifying the complexity of the manufacturing process. The second adjusting part 1052 completely covers the first surface 1031, so that the second adjusting part 1052 is added between the light shielding unit 103 and the color filter unit 104, and compared with the case that the external environment light is directly incident to the light shielding unit 103 through the gap between the adjacent color filter units 104, the reflection is easily generated in the inorganic insulating layer between the light shielding unit 103 and the adjacent color filter units 104, and the display effect of the display panel is affected, because the second adjusting part 1052 covers the first surface 1031, and the light adjusting unit 105 is a transparent material with a high refractive index, and the reflectivity is low, the external environment light is easily transmitted through the second adjusting part 1052 of the light adjusting unit 105, enters the light shielding unit 103 and is absorbed, the reflectivity to the external environment light incident to the display panel 100 is effectively reduced, and the display effect of the display panel 100 is ensured.

With continued reference to fig. 4, optionally, at least one first opening 107 is provided in the second adjustment section 1052, the first opening 107 exposing a portion of the first surface 1031.

As shown in fig. 4, the second adjustment portion 1052 has a first opening 107 therein, and the first opening 107 exposes a portion of the first surface 1031. The number of the first openings 107 may be selected according to actual design requirements, and the embodiment of the present invention is not particularly limited. By providing the first opening 107, part of the second adjustment subsection 1052 located at the adjacent color filter unit 104 is etched away, so that it is avoided that the light ray of a certain angle emitted through the light emitting unit 102 is easily emitted from the gap of the adjacent color filter unit 104 through the second adjustment subsection 1052 without passing through the color filter unit 104 due to the fact that the light ray adjustment unit 105 is made of a material with high refractive index and low reflectivity, and the display effect of the display panel is affected. The extension length of the first opening 107 along the first direction (e.g., Y direction in the figure) is reasonably set, so that the probability of light emitting from the gap between adjacent color filter units 104 can be effectively reduced, the color purity of the emergent light of the display panel 100 is improved, and the display effect of the display panel 100 is further ensured.

With continued reference to FIG. 4, optionally, the aperture d of the first opening 107 satisfies d ≦ 2 μm.

The first opening 107 is obtained by an etching process, a dimension of the first surface 1031 of the light shielding unit 103 extending along the extending direction of the first direction in the prior art is about 2 μm, and a maximum aperture dimension of the first opening 107 is that the light ray adjustment unit 105 does not cover the first surface 1031 of the light shielding unit 103. The aperture of the first opening 107 is set reasonably, so as to reduce the probability of light emitting from the gap between adjacent color filter units 104, and the aperture of the first opening 107 may be selected according to the actual design requirement, which is not limited in the embodiments of the present invention.

With continued reference to fig. 4, alternatively, the light shielding unit 103 is positioned between the first color filter unit 1041 and the second color filter unit 1042 of different colors; the first color filter unit 1041 contacts a portion of the first surface 1031 through the first opening 107, and the second color filter unit 1042 contacts a portion of the first surface 1031 through the first opening 107.

As shown in fig. 4, the light shielding unit 103 is located between the first color filter unit 1041 and the second color filter unit 1042 of different colors, so as to prevent the display effect of the display panel 100 from being affected by the crosstalk of the emergent light between the first color filter unit 1041 and the second color filter unit 1042 of different colors. The first color filter unit 1041 contacts with a portion of the first surface 1031 through the first opening 107, and the second color filter unit 1042 contacts with a portion of the first surface 1031 through the first opening 107, so that the light emitted from the light emitting unit 102 is prevented from directly emitting from the gap between the adjacent color filter units 104 through the light adjusting unit 105 with high refractive index and low reflectivity, and the display effect of the display panel 100 is ensured. Meanwhile, the contact area between the first color filter unit 1041 and the light shielding unit 103 and the contact area between the second color filter unit 1042 and the light shielding unit 103 are increased, so that the stability of the film structure of the display panel 100 is ensured, and the service life of the display panel 100 is prolonged.

With continued reference to FIG. 2, optionally, the angle α between the plane of the adjustment sidewall 1051 and the plane of the substrate base 101 satisfies 10 ≦ α ≦ 65.

The angle between the plane of the adjusting sidewall 106 and the plane of the substrate 101 is set reasonably, so that the external ambient light enters the adjusting sidewall through the color filter unit 104, 1051 the angle between the plane of the adjusting sidewall 106 and the plane of the substrate 101 is adjusted through the junction of the adjusting sidewall 106 and the color filter unit 104 due to the different refractive indexes of the light adjusting unit 105 and the color filter unit 104, and the light is deflected, so that the external ambient light is deflected to the pixel defining layer 1021 as much as possible, and the normal display effect of the display panel 100 is prevented from being influenced by the deflection of the external ambient light to the opening area range of the light emitting unit 102. Meanwhile, for the light emitted from the light emitting unit 102 to the light ray adjusting unit 105, because the refractive indexes of the light ray adjusting unit 105 and the color filtering unit 104 are different, the light ray is deflected by adjusting the included angle between the plane where the side wall 106 is located and the plane where the substrate 101 is located through adjusting the junction of the side wall 106 and the color filtering unit 104, so that the emitted light ray is deflected outwards as much as possible, the light emitting at a side view angle is increased, the brightness attenuation of the display panel 100 under a large viewing angle is relieved, and the overall display effect of the display panel 100 is ensured.

Optionally, the refractive index of the light ray adjustment unit 105 is n1, and the refractive index of the color filter unit 104 is n2, wherein n1 is equal to or greater than n 2.

Illustratively, 1.8. ltoreq. n 1. ltoreq.2.0; n2 is more than or equal to 1.4 and less than or equal to 1.6.

Wherein, the refractive index of the light ray adjusting unit 105 is larger than or equal to that of the color filter unit 104 by reasonably setting the refractive index of the light ray adjusting unit 105 and the refractive index of the color filter unit 104. For the external environment light incident on the display panel 100, the external environment light is incident on the light adjusting unit 105 through the color filter unit 104, and is deflected at the boundary between the adjusting sidewall 106 and the color filter unit 104, the emergent light is deflected toward the normal direction, the refraction angle is smaller than the incident angle, so that the external environment light is ensured to be deflected into the pixel defining layer 1021 corresponding to the light adjusting unit 105 as much as possible, and the display effect of the display panel 100 is prevented from being influenced by the external environment light. For the light emitted from the light emitting unit 102, the light enters the color filter unit 104 through the light adjusting unit 105, and is deflected at the boundary between the adjusting sidewall 106 and the color filter unit 104, the emitted light is deflected away from the normal direction, the refraction angle is larger than the incident angle, so that the light is deflected towards a large angle, the side-view angle light emission is increased, and the display uniformity of the display panel 100 is ensured.

Fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention, as shown in fig. 6, optionally, along a first direction, the first direction is a direction (e.g., a Y direction shown in fig. 6) perpendicular to a thickness direction of the display panel 100, a distance between two adjacent light shielding units 103 is a, an extending length of a light ray adjusting unit 105 located at one side of the light shielding unit 103 is b, wherein,

the extending length of the light ray adjusting unit 105 located at one side of the light shielding unit 103 along the first direction may be selected according to actual design requirements, and the embodiment of the present invention is not particularly limited. As shown in fig. 6, for example

Shown for example. The maximum extension length of the light ray adjusting unit 105 located at one side of the light shielding units 103 is half of the distance between two adjacent light shielding units 103, so that the area for receiving the external environment light rays incident to the display panel 100 and the area for emitting the light rays from the light emitting unit 102 are effectively increased, the light path adjustment of the light rays is realized to a greater extent, and the display effect of the display panel 100 is ensured.

With continued reference to fig. 2, 4, 5, and 6, optionally, the light emitting unit 102 further includes a reflective electrode 108, and the light ray adjusting unit 105 covers at least an edge of the reflective electrode 108 along the thickness direction of the display panel 100.

The light emitting unit 102 further includes a reflective electrode 108, the reflective layer 108 is a film layer in an anode layer of the light emitting unit 102, and the reflective electrode 108 is used for reflecting external ambient light incident to the light emitting unit 102, so as to avoid affecting normal light emission of the light emitting unit 102. The reflective electrode 108 may be a metal having high reflectivity, for example, silver (Ag). The light adjusting unit 105 at least covers the edge of the reflective electrode 108, since the external ambient light incident on the display panel 100 is deflected at the boundary between the color filter unit 104 and the light adjusting unit 105, the light is deflected to the pixel defining layer 1021, the pixel defining layer 1021 is made of a transparent inorganic insulating material, the light passes through the pixel defining layer 1021, metal wires such as a pixel driving circuit are present in the projection range of the pixel defining layer 1021 facing the substrate 101, and the metal wires reflect the external ambient light incident in the projection range of the pixel defining layer 1021, but the reflective effect is weaker than that of the reflective electrode 108, and more different reflected lights are easily generated, and the display effect of the display panel 100 is affected after the light is emitted from the display panel 100. Therefore, the light adjusting unit 105 at least covers the edge of the reflective electrode 108, so that part of the external environment light incident on the display panel 100 is incident on the reflective electrode 108 after being adjusted by the light adjusting unit 105, and after being reflected by the reflective electrode 108, part of the external environment light is reflected into the adjacent light shielding unit 103 and is absorbed by the light shielding unit 103, thereby reducing the risk of the external environment light exiting and ensuring the display effect of the display panel 100.

Fig. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention, as shown in fig. 7, optionally, the display panel 100 further includes an isolation layer 109 located between a film layer where the light shielding unit 103 is located and a film layer where the light emitting unit 102 is located, and the isolation layer 109 is in contact with the light adjusting unit 105; the refractive index of the spacer 109 is smaller than that of the light ray adjustment unit 105.

The isolation layer 109 is located between the film layer where the light shielding unit 103 is located and the film layer where the light emitting unit 102 is located, and the isolation layer 109 may be an inorganic insulating material, and performs isolation protection on the light emitting unit 102 to ensure that the light emitting unit 102 normally operates. The isolation layer 109 is in contact with the light ray adjustment unit 105, the refractive index of the isolation layer 109 is smaller than the refractive index of the light ray adjustment unit 105, and the refractive index of the isolation layer 109 is about 1.5, so that the external environment light emitted by the light ray adjustment unit 105 is deflected towards the direction deviating from the normal line at the junction of the light ray adjustment unit 105 and the isolation layer 109, and the external environment light is deflected to the pixel definition layer 1021, thereby preventing a large amount of external environment light from being emitted after being reflected by the reflective electrode 108 and affecting the display effect of the display panel 100. For the light emitted from the light emitting unit 102, the refractive index of the isolation layer 109 is smaller than the refractive index of the light adjusting unit 105, so that the light emitted from the isolation layer 109 passes through the boundary between the light adjusting unit 105 and the isolation layer 109, and the light deflects toward the direction close to the normal, so that the light is emitted at a side viewing angle more easily, and the display brightness requirement under a large viewing angle is met.

With continued reference to fig. 7, optionally, the display panel 100 further includes an encapsulation functional layer 110 located between the film layer where the light-shielding unit 103 is located and the film layer where the light-emitting unit 102 is located, and the encapsulation functional layer 110 includes an isolation layer 109.

The display panel 100 further includes a packaging function layer 110 located between the film layer where the light shielding unit 103 is located and the film layer where the light emitting unit 102 is located, one layer of the packaging function layer 110 is used as an isolation layer 109 to contact the light ray adjusting unit 105, and the refractive index of the isolation layer 109 is different from the refractive index of other film layers in the packaging function layer 110, so that the external environment light rays are enabled to obviously deflect through the junction of the light ray adjusting unit 105 and the isolation layer 109, the adjustment effect on the external environment light rays is ensured, and the display effect of the display panel 100 is ensured. Meanwhile, the emergent angle of the light emitted by the light emitting unit 102 is adjusted, so that the brightness attenuation phenomenon of the display panel 100 under a large viewing angle is avoided, and the overall display effect of the display panel 100 is ensured.

Fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and as shown in fig. 8, optionally, the display panel 100 further includes a touch functional layer 111 located between the film layer where the light shielding unit 103 is located and the film layer where the light emitting unit 102 is located, and the touch functional layer 111 includes an isolation layer 109.

The display panel 100 further includes a touch functional layer 111 located between the film layer where the light shielding unit 103 is located and the film layer where the light emitting unit 102 is located, the touch hole functional layer includes a touch electrode 112, an inorganic insulating layer 113 and an isolation layer 109, and the film layer in the touch functional layer 111 is reused as the isolation layer 109.

Optionally, the material of the light adjusting unit 105 includes at least one of an inorganic material, a resin material, and a polymer material mixed with a metal oxide.

The inorganic material may include silicon nitride, silicon oxide, and other inorganic materials, and the polymer material mixed with metal oxide may include a polymer material added with metal oxide nano-ions such as titanium dioxide and zirconium dioxide. The light ray adjusting unit 105 is made of a transparent material with a high refractive index, so that light rays in the incident light ray adjusting unit 105 can be emitted normally, and the propagation effect of the light rays cannot be influenced.

Based on the above inventive concept, fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 9, a display device 200 includes the display panel 100 according to the above embodiment.

It should be noted that, since the display device provided in this embodiment has the same or corresponding advantages of the display panel of the foregoing embodiment, no further description is provided herein. The display device 200 provided in the embodiment of the present invention may be a mobile phone shown in fig. 9, and may also be any electronic product with a display function, including but not limited to the following categories: the touch screen display system comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, medical equipment, industrial control equipment, a touch interaction terminal and the like, and the embodiment of the invention is not particularly limited in this respect.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel is characterized by comprising a substrate base plate, a plurality of light-emitting units, a plurality of shading units and a plurality of color filter units, wherein the light-emitting units, the shading units and the color filter units are sequentially arranged on one side of the substrate base plate; the shading unit is positioned between two adjacent color filter units, and the color filter units cover the light emitting units along the thickness direction of the display panel;

2. The display panel of claim 1, wherein the light adjusting unit comprises a first adjusting subsection, the first adjusting subsection covers a sidewall of the light shielding unit, and the adjusting sidewall is a sidewall of the first adjusting subsection.

3. The display panel of claim 2, wherein the light adjusting unit further comprises a second adjusting subsection connected to the first adjusting subsection and located on a side of the first adjusting subsection away from the substrate, the adjusting sidewall comprising a sidewall of the first adjusting subsection and a sidewall of the second adjusting subsection;

the shading unit comprises a first surface far away from one side of the substrate base plate, and the second adjusting subsection covers at least part of the first surface.

4. The display panel of claim 3 wherein the second adjustment section covers the first surface.

5. The display panel of claim 3, wherein the second adjustment section has at least one first opening disposed therein, the first opening exposing a portion of the first surface.

6. The display panel according to claim 5, wherein the light shielding unit is positioned between a first color filter unit and a second color filter unit of different colors;

the first color filter unit contacts a portion of the first surface through the first opening, and the second color filter unit contacts a portion of the first surface through the first opening.

7. The display panel according to claim 5, wherein the aperture d of the first opening satisfies d ≦ 2 μm.

8. The display panel according to claim 1, wherein an angle α between a plane in which the adjustment sidewall is located and a plane in which the substrate base plate is located satisfies 10 ° α ≦ 65 °.

9. The display panel of claim 1, wherein the light ray adjustment unit has a refractive index of n1, and the color filter unit has a refractive index of n2, wherein n1 ≧ n 2.

10. The display panel according to claim 1, wherein along a first direction, the first direction is a direction perpendicular to a thickness direction of the display panel, a distance between two adjacent light shielding units is a, and an extension length of the light ray adjustment unit on one side of the light shielding units is b, wherein,

11. the display panel according to claim 1, wherein the light emitting unit further comprises a reflective electrode, and the light ray adjusting unit covers at least an edge of the reflective electrode in a thickness direction of the display panel.

12. The display panel according to claim 1, further comprising an isolation layer between the film layer where the light shielding unit is located and the film layer where the light emitting unit is located, wherein the isolation layer is in contact with the light ray adjusting unit;

the refractive index of the isolation layer is smaller than that of the light ray adjusting unit.

13. The display panel according to claim 12, further comprising a sealing functional layer between the film layer on which the light-shielding unit is located and the film layer on which the light-emitting unit is located, wherein the sealing functional layer comprises the barrier layer.

14. The display panel according to claim 12, further comprising a touch functional layer between the film layer where the light-shielding unit is located and the film layer where the light-emitting unit is located, wherein the touch functional layer comprises the isolation layer.

15. The display panel of claim 1, wherein the material of the light adjusting unit comprises at least one of an inorganic material, a resin material, and a polymer material of mixed metal oxide.

16. A display device, comprising: the display panel of any one of claims 1-15.