CN115295600A - Display panel and display device - Google Patents

Abstract

The application provides a display panel and display device, display panel includes the substrate, the metal level, first electrode layer, luminescent layer and first light absorption layer, the metal level sets up in substrate one side, first electrode layer sets up in the one side that the metal level deviates from the substrate, first electrode layer includes a plurality of pixel electrodes, first light absorption layer sets up between metal level and first electrode layer, the luminescent layer includes a plurality of light emitting structure, pixel electrode is used for driving light emitting structure luminous, the orthographic projection of first light absorption layer at the substrate and the orthographic projection of metal level at the substrate partially overlap at least and set up. According to the display panel, the first light absorption layer is additionally arranged between the metal layer and the first electrode layer, and the first light absorption layer can absorb at least part of light incident into the metal layer, so that the light reflection degree is reduced, and the display effect of the display panel is improved.

Description

Display panel and display device

Technical Field

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

Background

With the continuous development of display technology, the OLED (Organic Light Emitting Diode) display panel has drawn attention due to its advantages of low energy consumption, low production cost, self-luminescence, wide viewing angle, and fast response speed.

The display panel is usually provided with metal materials inside, and when the display panel is used, ambient light can be reflected through the metal materials in the display panel, so that the display effect of the display panel is influenced.

Disclosure of Invention

The embodiment of the application provides a display panel and a display device, which can reduce the problem of light reflection.

The embodiment of the application provides a display panel, including substrate, metal level, first electrode layer, luminescent layer and first light absorption layer, the metal level sets up in substrate one side, first electrode layer sets up in the one side that the metal level deviates from the substrate, first electrode layer includes a plurality of pixel electrodes, first light absorption layer sets up between metal level and first electrode layer, the luminescent layer includes a plurality of light emitting structure, the pixel electrode is used for driving light emitting structure and gives out light, the orthographic projection of first light absorption layer at the substrate sets up with the orthographic projection of metal level at the substrate at least partly overlap.

In some embodiments, the first light absorbing layer includes an insulating material and is in contact with the pixel electrode.

In some embodiments, the display panel further comprises a planarization layer, and the first light absorbing layer is disposed between the first electrode layer and the planarization layer.

In some embodiments, the first light absorbing layer includes a black light blocking material.

In some embodiments, the display panel further includes a thin film transistor, the first light absorption layer is located on a side of the thin film transistor facing away from the substrate, and an orthographic projection of the first light absorption layer on the substrate and an orthographic projection of the thin film transistor on the substrate are at least partially overlapped.

In some embodiments, the thin film transistor includes a gate electrode, a source electrode, a drain electrode, and an active structure, the source electrode and the drain electrode are electrically connected to the active structure, and at least one of the gate electrode, the source electrode, and the drain electrode is disposed to at least partially overlap with an orthographic projection of the first light absorbing layer on the substrate.

In some embodiments, at least one of the gate, the source, and the drain is within the metal layer.

In some embodiments, the display panel further includes a pixel definition layer disposed on a side of the first electrode layer facing away from the substrate, the pixel definition layer includes a plurality of pixel openings, and the light emitting structure is disposed in the pixel structure.

In some embodiments, the pixel defining layer is a light transmissive structure.

In some embodiments, the color of the pixel definition layer comprises at least one of light yellow, white, and gray.

In some embodiments, the display panel further includes a third light absorption layer disposed on a side of the pixel defining layer opposite to the substrate and in contact with the pixel defining layer, and an orthogonal projection of the third light absorption layer on the substrate is located outside an orthogonal projection of the light emitting structure on the substrate.

In some embodiments, the display panel further includes a touch layer and a second light absorption layer, the touch layer is disposed on a side of the light emitting layer away from the substrate, and the touch layer includes a touch trace. The second light absorption layer is arranged on one side, away from the substrate, of the touch layer, and the orthographic projection of the second light absorption layer on the substrate is at least partially overlapped with the orthographic projection of the touch routing wires on the substrate.

In some embodiments, the display panel further includes an optical adhesive layer disposed on a side of the touch layer away from the substrate, and the second light absorption layer and the optical adhesive layer are disposed in the same layer.

In some embodiments, an orthographic projection of the second light absorbing layer on the substrate is distributed in a staggered manner with an orthographic projection of the light emitting structure on the substrate.

In some embodiments, the second light absorbing layer includes a second light absorbing part having a width W satisfying 3 μm ≦ W ≦ 6 μm.

In some embodiments, the display panel further includes a filter layer disposed on a side of the light emitting layer away from the substrate, the filter layer includes a light-transmitting substrate having an opening and an optical filter located in the opening, and an orthographic projection of the optical filter on the substrate and an orthographic projection of the light emitting structure on the substrate are at least partially overlapped.

In some embodiments, an orthographic projection of the filter on the substrate covers an orthographic projection of the light emitting structure on the substrate.

In a second aspect, an embodiment of the present application provides a display device, including the display panel in any one of the foregoing embodiments.

The embodiment of the application provides a display panel and a display device, and the first light absorption layer is additionally arranged between the metal layer and the first electrode layer, so that the first light absorption layer can absorb at least part of light incident into the metal layer, the light reflection degree is reduced, and the display effect of the display panel is improved. Meanwhile, the existence of the first light absorption layer does not influence the light emitting effect of the light emitting structure in the display panel, namely the self light emitting brightness of the display panel is not influenced, and the display requirement of the display panel can be met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

fig. 2 is an enlarged schematic view of the thin film transistor of fig. 1;

fig. 3 is a schematic structural diagram of another display panel provided in an embodiment of the present application

Fig. 4 is a schematic structural diagram of another display panel provided in the embodiment of the present application;

fig. 5 is a schematic structural diagram of a second light absorption portion in another display panel provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of another display panel provided in an embodiment of the present application;

fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present application.

Description of the labeling:

10. a substrate; 11. a metal layer; 12. a first electrode layer; 121. a pixel electrode; 13. a first light absorbing layer; 14. a planarization layer; 15. a thin film transistor; 151. a gate electrode; 152. a source electrode; 153. a drain electrode; 154. an active structure;

21. a pixel defining layer; 22. a light emitting layer; 221. a light emitting structure; 23. a second light absorbing layer; 231. a second light absorption portion; 24. a touch layer; 241. touch wiring; 25. a packaging layer; 26. a second electrode layer; 27. an optical adhesive layer; 28. a filter layer; 281. a light-transmitting substrate; 282. an optical filter; 29. a third light absorption layer.

Detailed Description

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

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" comprises 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

In the related art, in order to reduce the reflectivity of the display panel to the ambient light, a polarizer is disposed in the display panel to reduce the reflection of the external light after the external light is incident on some metal materials in the display panel. However, the polarizer also filters the light emitted from the display panel, thereby reducing the self-luminous efficiency of the display panel and being not beneficial to the display of the display panel.

In order to solve the above problem, in an aspect, referring to fig. 1, an embodiment of the present invention provides a display panel, which includes a substrate 10, a metal layer 11, a first electrode layer 12, a light emitting layer 22, and a first light absorbing layer 13, where the metal layer 11 is disposed on one side of the substrate 10, the first electrode layer 12 is disposed on one side of the metal layer 11 away from the substrate 10, the first electrode layer 12 includes a plurality of pixel electrodes 121, the light emitting layer 22 includes a plurality of light emitting structures 221, the pixel electrodes 121 are used for driving the light emitting structures 221 to emit light, the first light absorbing layer 13 is disposed between the metal layer 11 and the first electrode layer 12, and an orthographic projection of the first light absorbing layer 13 on the substrate 10 and an orthographic projection of the metal layer 11 on the substrate 10 are at least partially overlapped.

The light-emitting layer 22, the metal layer 11 and the first electrode layer 12 are located on the same side of the substrate 10, and the light-emitting structure 221 in the light-emitting layer 22 is a main structure for realizing a light-emitting function in the display panel. Illustratively, the light emitting layer 22 includes a plurality of light emitting structures 221, and the plurality of light emitting structures 221 includes a red light emitting structure for emitting red light, a green light emitting structure for emitting green light, and a blue light emitting structure for emitting blue light.

The first electrode layer 12 includes a plurality of pixel electrodes 121, and the pixel electrodes 121 are disposed corresponding to the light-emitting structures 221 for driving the light-emitting structures 221 to achieve a light-emitting function. The metal layer 11 is located between the first electrode layer 12 and the substrate 10, the metal layer 11 may be any one of a data line layer, a scan line layer, and a power signal line layer, and the specific position of the metal layer 11 and the function of the metal layer 11 are not limited in this embodiment of the application. As long as the metal layer 11 is located between the first electrode layer 12 and the substrate 10, and the metal material is included in the metal layer 11.

Due to the existence of the metal material in the metal layer 11, in the display panel formed subsequently, ambient light can penetrate through a part of the film layer in the display panel and irradiate on the metal material, and the metal material can reflect the ambient light, so that the problem of light reflection occurs, and the display effect of the display panel is affected.

On the basis, the first light absorption layer 13 is additionally arranged in the embodiment of the application, the first light absorption layer 13 is positioned between the metal layer 11 and the first electrode layer 12, and the orthographic projection of the first light absorption layer 13 on the substrate 10 is at least partially overlapped with the orthographic projection of the metal layer 11 on the substrate 10. Therefore, the light incident on the metal layer 11 reaches the position of the first light absorption layer 13 first, and the first light absorption layer 13 can absorb part or even all of the ambient light incident on the position, so as to reduce the amount of ambient light reaching the metal layer 11, thereby reducing the light reflection degree of the display panel.

Further, referring to fig. 1, the light emitting structure 221 having the light emitting effect is located on a side of the first electrode layer 12 away from the substrate 10, and the light emitting side of the light emitting structure 221 is located on a side of the light emitting structure 221 away from the substrate 10, that is, most of the light emitted by the light emitting structure 221 exits the display panel in a direction away from the substrate 10, so as to display a corresponding image.

Since the first light absorbing layer 13 is located between the metal layer 11 and the first electrode layer 12, that is, between the light emitting structure 221 and the substrate 10. Therefore, the light emitted from the light emitting structure 221 is less affected by the presence of the first light absorbing layer 13, in other words, the self-luminous efficiency of the display panel is less affected by the first light absorbing layer 13, and the display brightness of the display panel is not reduced.

It should be noted that, as to the structural material of the first light absorbing layer 13, the present embodiment is not limited, and for example, the first light absorbing layer 13 may be a light filtering structure capable of filtering a part of light of a specific color in ambient light. And the positional relationship between the first light absorbing layer 13 and the pixel electrode 121, the embodiment of the present application is also not limited. That is, the orthographic projection of the first light absorbing layer 13 on the substrate 10 may or may not overlap with the orthographic projection of the pixel electrode 121 on the substrate 10. In addition, the first light absorption layer 13 may be a continuous structure over the whole surface, or may be formed by a plurality of first light absorption portions arranged at intervals, which is not limited in the embodiment of the present application.

In the embodiment of the present application, the first light absorption layer 13 is additionally disposed between the metal layer 11 and the first electrode layer 12, and the first light absorption layer 13 can absorb at least part of light incident into the metal layer 11, so as to reduce the degree of light reflection and improve the display effect of the display panel. Meanwhile, the existence of the first light absorbing layer 13 does not affect the light emitting effect of the light emitting structure 221 in the display panel, that is, the light emitting brightness of the display panel itself is not affected, and the display requirements of the display panel can be met.

The positional relationship between the light-emitting structure 221 and the first light-absorbing layer 13 is not limited in the embodiments of the present application. In other words, the orthographic projection of the light emitting structure 221 on the substrate 10 may at least partially overlap the orthographic projection of the first light absorbing layer 13 on the substrate 10, or the orthographic projection and the orthographic projection may be staggered.

In some embodiments, as shown in fig. 1, the first light absorbing layer 13 includes an insulating material and is in contact with the pixel electrode 121. Alternatively, the orthographic projection of the first light absorbing layer 13 on the substrate 10 covers the orthographic projection of the pixel electrode 121 on the substrate 10.

The first light absorbing layer 13 is located on the side of the first electrode layer 12 facing the substrate 10, and is in contact with the pixel electrode 121 in the first electrode layer 12. On this basis, the first light absorbing layer 13 includes an insulating material, so the first light absorbing layer 13 can perform an effect of insulating and separating the pixel electrode 121 from the metal material in the metal layer 11, thereby improving reliability during operation of the display panel.

It should be noted that, in the related art, there is usually a planarization layer 14 in the display panel, the pixel electrode 121 in the first electrode layer 12 is in direct contact with the planarization layer 14, and the planarization layer 14 provides a flat surface for the pixel electrode 121.

While the first light absorbing layer 13 is in contact with the pixel electrode 121 in the present embodiment, further, in the present embodiment, the planarization layer 14 between the first electrode layer 12 and the metal layer 11 may be removed by replacing the planarization layer with the first light absorbing layer 13. Alternatively, the first light absorbing layer 13 and the planarization layer 14 may be disposed on the same layer, or the first light absorbing layer 13 may be disposed between the planarization layer 14 and the first electrode layer 12, which is not limited in this embodiment.

In some embodiments, the display panel further includes a planarization layer 14, and the first light absorbing layer 13 is disposed between the first electrode layer 12 and the planarization layer 14.

A planarization layer 14 is present in the display panel, and a first light absorbing layer 13 is pattern-formed on the planarization layer 14. In the embodiment of the present application, only one additional process is required to form the first light absorbing layer 13 after the planarization layer 14 is prepared, so that the problem of light reflection of the display panel can be reduced, and the preparation is simple and reliable without complicated operations.

In some embodiments, the first light absorbing layer 13 includes a black light-shielding material.

The first light absorbing layer 13 is made of black opaque material, i.e. the first light absorbing layer 13 is made of black opaque material, and the first light absorbing layer 13 can absorb all the ambient light incident into the first light absorbing layer 13. Alternatively, the first light absorbing layer 13 is a black matrix.

This design enables the first light absorbing layer 13 to absorb more ambient light, thereby further reducing the ambient light incident into the metal layer 11 and reducing the light reflection problem of the display panel.

In some embodiments, referring to fig. 1 and fig. 2, the display panel further includes a thin film transistor 15, the first light absorption layer 13 is located on a side of the thin film transistor 15 away from the substrate 10, and an orthogonal projection of the first light absorption layer 13 on the substrate 10 and an orthogonal projection of the thin film transistor 15 on the substrate 10 are at least partially overlapped.

The thin film transistor 15 is an insulated gate field effect transistor, and the thin film transistor 15 includes a metal material therein, so that a portion of ambient light incident into the display panel can be reflected by the thin film transistor 15, thereby causing a problem of light reflection and affecting the display effect.

Therefore, in the embodiment of the application, the first light absorption layer 13 is disposed on a side of the thin film transistor 15 away from the substrate 10, and at the same time, an orthographic projection of the first light absorption layer 13 on the substrate 10 and an orthographic projection of the thin film transistor 15 on the substrate 10 are at least partially overlapped, so that at least part of the ambient light incident on the thin film transistor 15 can be absorbed by the first light absorption layer 13, thereby reducing reflection of the thin film transistor 15 on the ambient light and improving the display effect. Alternatively, the orthographic projection of the first light absorbing layer 13 on the substrate 10 covers the orthographic projection of the thin film transistor 15 on the substrate 10.

The relative positional relationship between the thin film transistor 15 and the metal layer 11 is not limited in the embodiments of the present application. Part of the structure in the thin film transistor 15 may be located in the metal layer 11, or all of the structure in the thin film transistor 15 may not be located in the metal layer 11.

In some embodiments, the thin film transistor 15 includes a gate electrode 151, a source electrode 152, a drain electrode 153, and an active structure 154, the source electrode 152 and the drain electrode 153 are electrically connected to the active structure 154, and at least one of the gate electrode 151, the source electrode 152, and the drain electrode 153 is disposed at least partially overlapping an orthographic projection of the substrate 10 and an orthographic projection of the first light absorbing layer 13 on the substrate 10.

The thin film transistor 15 is an insulated gate field effect transistor, and is mainly composed of a conductive layer including a gate electrode 151, a source electrode 152, and a drain electrode 153, and a semiconductor layer including an active structure 154. The source 152 and drain 153 are generally disposed in the same layer, and the active structure 154 is generally separated from the gate 151, and the source 152 and gate 151 are generally separated by an insulating layer. The active structure 154 includes an active region, a drain region, and a channel region between the active region and the drain region, the source 152 being electrically connected to the source region, and the drain 153 being electrically connected to the drain region.

When a voltage is applied to the gate 151, a channel for carrier migration is formed in the active structure 154. Specifically, when the thin film transistor 15 operates, the gate electrode 151 applies a voltage and generates an electric field, the direction of which is directed from the gate electrode 151 to the surface of the channel region of the active structure 154, and induced charges are generated at the surface. As the voltage of the gate 151 increases, the surface of the channel region will change from a depletion layer to an electron accumulation layer, forming an inversion layer. When the voltage of the gate electrode 151 reaches a threshold voltage, carriers pass through the channel region by applying a voltage between the source region and the drain region.

In the tft 15, the gate electrode 151, the source electrode 152 and the drain electrode 153 are all made of a metal conductive material, so that the gate electrode 151, the source electrode 152 and the drain electrode 153 can reflect ambient light entering the display panel. On the basis, the embodiment of the application at least partially overlaps the orthographic projection of at least one of the gate 151, the source 152 and the drain 153 on the substrate 10 with the orthographic projection of the first light absorbing layer 13 on the substrate 10, so that at least part of the ambient light incident on the gate 151, the source 152 and the drain 153 can be absorbed by the first light absorbing layer 13, and the problem of light reflection can be reduced.

In some embodiments, at least one of the gate 151, the source 152, and the drain 153 is located within the metal layer 11.

In the embodiment of the present application, the metal layer 11 is a film layer on which at least one of the gate 151, the source 152 and the drain 153 is located. Illustratively, the gate 151 is located in the metal layer 11, alternatively, the source 152 and the drain 153 are both located in the metal layer 11.

In some embodiments, the display panel further includes a pixel defining layer 21, the pixel defining layer 21 is disposed on a side of the first electrode layer 12 facing away from the substrate 10, the pixel defining layer 21 includes a plurality of pixel openings, and the light emitting structures 221 are located in the pixel openings.

In some embodiments, the pixel defining layer 21 is a light-transmitting structure.

In the related art, in order to reduce the light reflection problem of the display panel, the pixel definition layer 21 inside the display panel is configured as a black light shielding structure, and the pixel definition layer 21 absorbs ambient light. Although this design can reduce the problem of light reflection, since the light emitting structure 221 is located in the pixel opening of the pixel defining layer 21, a part of light emitted from the light emitting structure 221 irradiates the sidewall of the opening of the pixel defining layer 21 and is absorbed by the pixel defining layer 21, thereby reducing the light emitting efficiency of the light emitting structure 221.

In the embodiment of the present application, since the first light absorbing layer 13 can also absorb ambient light, the pixel defining layer 21 does not need to be configured as a light shielding structure. The pixel defining layer 21 is a light-transmitting structure, and light emitted from the light-emitting structure 221 at the sidewall of the opening in the pixel defining layer 21 can be reflected or refracted by the pixel defining layer 21 and finally exit the display panel. The design can improve the light emitting efficiency of the light emitting structure 221 and improve the display effect of the display panel while reducing the problem of light reflection. Optionally, the extension of the pixel defining layer 21 comprises at least one of light yellow, white and grey.

In some embodiments, referring to fig. 3, the display panel further includes a third light absorption layer 29 disposed on a side of the pixel defining layer 21 away from the substrate 10 and contacting the pixel defining layer 21, and an orthogonal projection of the third light absorption layer 29 on the substrate 10 is located outside an orthogonal projection of the light emitting structure 221 on the substrate 10.

Like the first light absorbing layer 13, the third light absorbing layer 29 can also absorb ambient light, and the third light absorbing layer 29 can cooperate with the first light absorbing layer 13, thereby further reducing the problem of light reflection of the display panel. Alternatively, the orthographic projection of the third light absorbing layer 29 on the substrate 10 is distributed to be offset from the orthographic projection of the first light absorbing layer 13 on the substrate 10.

The material of the structure of the third light absorbing layer 29 is not limited in the present embodiment, and the material of the structure of the third light absorbing layer 29 may be the same as the material of the structure of the first light absorbing layer 13, or may be different from the material of the structure of the first light absorbing layer 13. Exemplarily, the third light absorbing layer 29 includes a black light-shielding material.

While the third light absorbing layer 29 is located at a side of the pixel defining layer 21 facing away from the substrate 10 and in contact with the pixel defining layer 21, i.e. the third light absorbing layer 29 is located at a side of the light emitting layer 22 facing away from the substrate 10 and close to the light emitting structure 221. In addition, since the orthographic projection of the third light absorbing layer 29 on the substrate 10 is positioned outside the orthographic projection of the light emitting structure 221 on the substrate 10, the influence of the third light absorbing layer 29 on the light emitting angle of the light emitting structure 221 can be reduced as much as possible, and the light emitting efficiency of the light emitting structure 221 can be improved.

In some embodiments, referring to fig. 4, the display panel further includes a touch layer 24 and a second light absorbing layer 23, the touch layer 24 is disposed on a side of the light emitting layer 22 away from the substrate 10, and the touch layer 24 includes a touch trace 241. The second light absorption layer 23 is disposed on a side of the touch layer 24 away from the substrate 10, and an orthographic projection of the second light absorption layer 23 on the substrate 10 at least partially overlaps with an orthographic projection of the touch trace 241 on the substrate 10.

The touch trace 241 layer is used for realizing the touch effect of the display panel, and the touch layer 24 is located on the side of the light-emitting layer 22 away from the substrate 10. Illustratively, the display panel further includes a second electrode layer 26 disposed on a side of the light-emitting layer 22 away from the substrate 10 and an encapsulation layer 25 disposed on a side of the second electrode layer 26 away from the substrate 10, where a second electrode in the second electrode layer 26 and the pixel electrode 121 jointly drive the light-emitting structure 221 to achieve a light-emitting function. The encapsulation layer 25 is used to reduce the risk of water and oxygen invasion to the second electrode layer 26 and the light emitting layer 22, and improve the reliability of the display panel. The touch layer 24 is located on a side of the packaging layer 25 facing away from the substrate 10, and the packaging layer 25 can insulate and separate the touch layer 24 from the second electrode layer 26, so as to reduce the risk of signal crosstalk between the touch trace 241 and the second electrode.

Besides the metal layer 11 in the display panel, ambient light can also be reflected by the touch trace 241, thereby causing a reflection phenomenon. On this basis, the second light absorbing layer 23 is additionally arranged in the embodiment of the present application, the second light absorbing layer 23 is located on a side of the touch layer 24 away from the substrate 10, and an orthographic projection of the second light absorbing layer 23 on the substrate 10 and an orthographic projection of the touch trace 241 on the substrate 10 are at least partially overlapped. Therefore, at least a portion of the ambient light irradiated to the touch trace 241 can be absorbed by the second light absorbing layer 23, so as to reduce the problem of light reflection caused by the touch trace 241.

The material of the second light absorbing layer 23 is not limited in the present embodiment, and the material of the second light absorbing layer 23 may be the same as the material of the first light absorbing layer 13, or may be different from the material of the first light absorbing layer 13. Illustratively, the second light absorbing layer 23 includes a black light-shielding material.

In some embodiments, the display panel further includes an optical adhesive layer 27 disposed on a side of the touch layer 24 away from the substrate 10, and the second light absorbing layer 23 is disposed on the same layer as the optical adhesive layer 27.

The optical adhesive layer 27 is used for realizing the attachment between the touch layer 24 and other film layer structures in the display panel, illustratively, a cover plate is included in the display panel, the cover plate is located on one side of the touch layer 24 departing from the substrate 10, and the optical adhesive layer 27 is used for realizing the attachment between the touch layer 24 and the cover plate.

In the embodiment of the present application, the second light absorbing layer 23 and the optical adhesive layer 27 are disposed in the same layer, i.e., the thickness of the display panel is not increased by the presence of the second light absorbing layer 23. Therefore, the light reflection problem of the display panel can be reduced and the display effect can be improved while the use hand feeling of the display panel is not increased.

In some embodiments, referring to fig. 4 and 5, the orthographic projection of the second light absorbing layer 23 on the substrate 10 is distributed to be offset from the orthographic projection of the light emitting structure 221 on the substrate 10. In fig. 5, the light emitting structure 221 is shown in the form of a dotted box.

The second light absorbing layer 23 is located on a side of the light emitting layer 22 away from the substrate 10, and light emitted from the light emitting structure 221 in the light emitting layer 22 exits the display panel toward the side away from the substrate 10. In order to reduce the absorption effect of the second light absorbing layer 23 on the light emitted from the light emitting structure 221, in the embodiment of the present application, the orthographic projection of the second light absorbing layer 23 on the substrate 10 and the orthographic projection of the light emitting structure 221 on the substrate 10 are distributed in a staggered manner, that is, the light emitted vertically from the light emitting structure 221 is not absorbed by the second light absorbing layer 23, so that the light emitting efficiency of the light emitting structure 221 is ensured.

In some embodiments, the second light absorbing layer 23 includes the second light absorbing part 231, and the second light absorbing part 231 has a width W satisfying 3 μm ≦ W ≦ 6 μm. Illustratively, W is one of 3 μm, 4 μm, 5 μm, and 6 μm.

The second light absorption portion 231 is used for shielding the touch trace 241, so as to reduce the reflection of the touch trace 241 to the ambient light. In general, the width of the touch trace 241 is small, and thus the width W of the second light absorption part 231 corresponding to the touch trace 241 does not need to be too large. The embodiment of the present application reduces the size of the second light absorption portion 231 as much as possible, and sets the width W of the second light absorption portion 231 to be not more than 6 μm, so that the influence of the second light absorption portion 231 on the light emitted by the light emitting structure 221 can be further reduced, and the light emitting efficiency of the light emitting structure 221 can be improved.

In addition, if the width W of the second light absorption portion 231 is too small, the shielding effect of the second light absorption portion 231 on the touch trace 241 is not sufficient, so that the ambient light can still be reflected by the touch trace 241, which is not favorable for the display effect of the display panel. Therefore, the width W of the second light absorption part 231 is set to be not less than 3 μm, so as to ensure the shielding effect of the second light absorption part 23 on the touch traces 241.

In some embodiments, referring to fig. 6, the display panel further includes a filter layer 28 disposed on a side of the light emitting layer 22 away from the substrate 10, the filter layer 28 includes a light-transmitting base 281 having an opening and an optical filter 282 located in the opening, and an orthogonal projection of the optical filter 282 on the substrate 10 and an orthogonal projection of the light emitting structure 221 on the substrate 10 are at least partially overlapped.

The filter layer 28 includes a plurality of filters 282 therein, and the plurality of filters 282 correspond to the plurality of light emitting structures 221. Illustratively, the plurality of filters 282 includes a red filter, a green filter, and a blue filter, the red filter is disposed to overlap with an orthographic projection of the red light emitting structure on the substrate 10, the green filter is disposed to overlap with an orthographic projection of the green light emitting structure on the substrate 10, and the blue filter is disposed to overlap with an orthographic projection of the blue light emitting structure on the substrate 10. The red filter only allows red light to pass through and absorbs other colors of light; the green filter only allows green light to pass through and absorbs other colors of light; the blue filter allows only blue light to pass through and absorbs other colors of light. Alternatively, the orthographic projection of the filter 282 on the substrate 10 covers the orthographic projection of the corresponding light emitting structure 221 on the substrate 10.

The filter layer 28 further includes a light-transmitting substrate 281, and the light-transmitting substrate 281 has a plurality of openings therein for defining and accommodating the optical filters 282. The light-transmitting substrate 281 is made of a light-transmitting material, so that light emitted from the light-emitting structure 221, ambient light, and the like can transmit through the light-transmitting substrate 281.

In the embodiment of the present invention, the filter 282 can allow light corresponding to the light emitting structure 221 to pass through, and absorb light of other colors. Thereby absorbing a portion of ambient light while satisfying the light emitting efficiency of the light emitting structure 221. Meanwhile, the light incident from the transparent substrate 281 to the inside of the display panel can be absorbed by the first light absorption layer 13, thereby further reducing the problem of light reflection of the display panel.

In addition, part of the light emitted from the light emitting structures 221 can also exit the display panel through the light transmitting substrate 281, so that the light emitting angle and the light emitting efficiency of a single light emitting structure 221 can be improved, and the display effect of the display panel can be improved.

In a second aspect, referring to fig. 7, an embodiment of the present application provides a display device including the display panel in any one of the foregoing embodiments.

It should be noted that the display device provided in the embodiment of the present application has the beneficial effects of the display panel in any one of the foregoing embodiments, for specific contents, reference is made to the foregoing description of the beneficial effects of the display panel, and details are not repeated in the embodiment of the present application.

Although the embodiments disclosed in the present application are as described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.

As described above, only the specific embodiments of the present application are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the corresponding processes in the foregoing method embodiments may be referred to for replacement of the other connection manners described above, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.

Claims (10)

1. A display panel, comprising:

a substrate;

the metal layer is arranged on one side of the substrate;

the first electrode layer is arranged on one side, away from the substrate, of the metal layer and comprises a plurality of pixel electrodes;

the light-emitting layer comprises a plurality of light-emitting structures, and the pixel electrode is used for driving the light-emitting structures to emit light;

the first light absorption layer is arranged between the metal layer and the first electrode layer, and the orthographic projection of the first light absorption layer on the substrate and the orthographic projection of the metal layer on the substrate are at least partially overlapped.

2. The display panel according to claim 1, wherein the first light absorption layer comprises an insulating material and is in contact with the pixel electrode;

preferably, the display panel further comprises a planarization layer, the first light absorbing layer being disposed between the first electrode layer and the planarization layer;

preferably, the first light absorbing layer includes a black light blocking material.

3. The display panel according to claim 1, further comprising a thin film transistor, wherein the first light absorption layer is located on a side of the thin film transistor facing away from the substrate, and an orthographic projection of the first light absorption layer on the substrate and an orthographic projection of the thin film transistor on the substrate are at least partially overlapped;

preferably, the thin film transistor includes a gate electrode, a source electrode, a drain electrode and an active structure, the source electrode and the drain electrode are electrically connected to the active structure, and at least one of the gate electrode, the source electrode and the drain electrode is disposed at least partially overlapping with an orthographic projection of the first light absorbing layer on the substrate;

preferably, at least one of the gate, the source and the drain is located within the metal layer.

4. The display panel according to claim 1, further comprising a pixel definition layer disposed on a side of the first electrode layer facing away from the substrate, wherein the pixel definition layer comprises a plurality of pixel openings, and the light emitting structures are disposed in the pixel openings;

preferably, the pixel defining layer is a light-transmitting structure;

preferably, the color of the pixel defining layer includes at least one of light yellow, white, and gray.

5. The display panel according to claim 4, further comprising a third light absorption layer disposed on a side of the pixel defining layer opposite to the substrate and in contact with the pixel defining layer, wherein an orthogonal projection of the third light absorption layer on the substrate is outside an orthogonal projection of the light emitting structure on the substrate;

preferably, an orthographic projection of the third light absorption layer on the substrate and an orthographic projection of the first light absorption layer on the substrate are distributed in a staggered mode.

6. The display panel according to claim 1, further comprising:

the touch layer is arranged on one side, away from the substrate, of the light emitting layer and comprises touch wiring;

the second light absorption layer is arranged on one side, away from the substrate, of the touch layer, and the orthographic projection of the second light absorption layer on the substrate is at least partially overlapped with the orthographic projection of the touch routing wires on the substrate.

7. The display panel of claim 6, further comprising an optical adhesive layer disposed on a side of the touch layer facing away from the substrate, wherein the second light absorption layer and the optical adhesive layer are disposed on the same layer.

8. The display panel according to claim 6, wherein an orthographic projection of the second light absorption layer on the substrate is distributed in a staggered manner from an orthographic projection of the light emitting structure on the substrate;

preferably, the second light absorbing layer includes a second light absorbing part having a width W satisfying 3 μm W6 μm.

9. The display panel according to claim 1, further comprising a filter layer disposed on a side of the light-emitting layer facing away from the substrate, wherein the filter layer comprises a light-transmitting substrate having an opening and an optical filter disposed in the opening, and an orthographic projection of the optical filter on the substrate and an orthographic projection of the light-emitting structure on the substrate are at least partially overlapped;

preferably, an orthographic projection of the optical filter on the substrate covers an orthographic projection of the light-emitting structure on the substrate.

10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.

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