CN220402277U - Display panel and display device - Google Patents

Abstract

The application provides a display panel and a display device. The display panel includes a pixel layer; the first polaroid is positioned on the light emitting side of the pixel layer and is provided with a first light passing axis, and the first polaroid is configured to transmit light with a polarization direction parallel to the first light passing axis and absorb light with the polarization direction perpendicular to the first light passing axis; the second polaroid is positioned at one side of the first polaroid away from the pixel layer, is provided with a second light passing axis and is configured to transmit light with a polarization direction parallel to the second light passing axis and reflect light with the polarization direction perpendicular to the second light passing axis; wherein the first pass axis is parallel to the second pass axis. The display panel can give consideration to the mirror display effect and the display brightness of the display panel.

Description

Display panel and display device

Technical Field

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

Background

With the increasing demands of users for multi-function displays, display panels having a mirror display function are becoming popular products. In the related art, the transflective film is added to the display panel to realize the mirror display, however, this method cannot achieve both the mirror reflection effect and the display brightness of the display.

Disclosure of Invention

The application provides a display panel and a display device. Various aspects related to embodiments of the present application are described below.

In a first aspect, a display panel is provided, including a pixel layer; the first polaroid is positioned on the light emitting side of the pixel layer and is provided with a first light passing axis, and the first polaroid is configured to transmit light with a polarization direction parallel to the first light passing axis and absorb light with a polarization direction perpendicular to the first light passing axis; the second polaroid is positioned on one side, far away from the pixel layer, of the first polaroid, the second polaroid is provided with a second light passing axis, and the second polaroid is configured to transmit light with a polarization direction parallel to the second light passing axis and reflect light with the polarization direction perpendicular to the second light passing axis; wherein the first pass axis is parallel to the second pass axis.

In one possible implementation, the display panel further includes: and the wave plate is positioned between the pixel layer and the polaroid, and is configured to adjust the phase of emergent light of the wave plate to be pi/4 different from the phase of incident light of the wave plate.

In one possible implementation, the wave plate is in contact with the first polarizer, and an optical axis of the wave plate is configured to change linearly polarized light from the first polarizer to circularly polarized light.

In one possible implementation, an included angle between the optical axis of the wave plate and the first pass optical axis is 45 degrees.

In one possible implementation, the display panel further includes: the packaging layer is positioned between the pixel layer and the wave plate; the touch control layer is positioned on one side, away from the pixel layer, of the packaging layer, and the touch control layer comprises a touch control component which is used for responding to touch control operation.

In a second aspect, a display panel is provided, including a pixel layer; the first polaroid is positioned on the light emitting side of the pixel layer and is used for outputting incident light into linearly polarized light; a wave plate in contact with a side of the polarizer remote from the pixel layer, the wave plate configured to output the linearly polarized light as circularly polarized light having a first light-passing handedness; the second polaroid is positioned at one side of the wave plate away from the first polaroid, the second polaroid is provided with a second light-passing rotation direction, and the second polaroid is configured to transmit light with the same rotation direction as the second light-passing rotation direction and reflect light with the rotation direction opposite to the second light-passing rotation direction; the first light-transmitting rotation direction is the same as the first light-transmitting rotation direction.

In one possible implementation manner, the first polarizer has a first light-passing axis, and an included angle between the optical axis of the wave plate and the first light-passing axis is 45 degrees.

In one possible implementation, the first polarizer is configured to transmit light having a polarization direction parallel to the first pass axis and absorb light having a polarization direction perpendicular to the first pass axis.

In one possible implementation, an encapsulation layer is located between the pixel layer and the polarizer; the touch control layer is positioned on one side, away from the pixel layer, of the packaging layer, and the touch control layer comprises a touch control component which is used for responding to touch control operation.

In a third aspect, there is provided a display device comprising the display panel according to the first or second aspect.

The display panel provided by the embodiment of the application comprises the first polaroid and the second polaroid which are positioned on the light emitting side of the pixel layer, wherein the first light passing axis of the first polaroid is parallel to the second light passing axis of the second polaroid, and the second polaroid is arranged on the first polaroid, so that the second polaroid can bear the function of specular reflection and simultaneously keep the light emitting side to be transmitted to the greatest extent, and the display brightness of the display panel is ensured.

Drawings

Fig. 1 is a schematic cross-sectional structure of a display panel in the related art.

Fig. 2 is a schematic cross-sectional structure of a display panel according to an embodiment of the present application.

Fig. 3 is a schematic cross-sectional structure of another display panel according to an embodiment of the present application.

Fig. 4 is a schematic cross-sectional structure of another display panel according to an embodiment of the present application.

Fig. 5 is a schematic cross-sectional view of another display panel according to an embodiment of the present application.

Detailed Description

In order to facilitate an understanding of the present application, the present application is described in more detail below based on exemplary embodiments in conjunction with the accompanying drawings. The same or similar reference numbers are used in the drawings to refer to the same or similar modules. It is to be understood that the drawings are schematic only and that the scope of the present application is not limited thereto.

With the increasing demands of users for multi-function displays, display panels having a mirror display function are becoming popular products. The specular display may mean that the display surface of the display panel can display an image, and also reflect the ambient light x so that the display surface is used as a mirror.

For convenience of understanding, a display panel having a mirror display function in the related art will be described in detail with reference to fig. 1.

As shown in fig. 1, the display panel 10 may include a pixel layer 11, a transflective film layer 12, and a cover plate 13.

The pixel layer 11 may be electrically connected with a control component (not shown in fig. 1) of the display panel 10 to perform display in a display area. The transflective film 12 is typically a distributed bragg mirror (distributed Bragg reflector mirror, DBR) plated on the cover plate 13. Since the transflective film 12 needs to have both a certain light shielding property and a certain light transmittance, it is difficult to achieve both the effect of specular reflection and the display brightness of the display panel.

Specifically, the half mirror reflects the external ambient light x and emits the light y of the pixel layer 11. The better the light transmittance of the transflective film 12 is, the worse the light shielding property is, and accordingly, the display brightness of the display panel 10 is better, and the haze of the specular reflection is higher, and the specular imaging effect is worse. The better the light shielding property (the higher the reflectance) of the transflective film 12, the worse the light transmission, and accordingly, the lower the haze of the specular reflection, the better the specular imaging effect, and the worse the display luminance of the display panel 10. In the related art, the display brightness and the mirror effect of the display panel 10 are also contradictory problems to be improved at the same time due to contradictory properties of light shielding properties and light transmittance.

As described above, the display panel using the transflective film 12 cannot achieve both the specular reflection effect and the display brightness of the display panel.

In view of this, the embodiment of the application proposes a display panel, which includes a first polarizer and a second polarizer located on the light-emitting side of the pixel layer, where the light-passing axis of the first polarizer is parallel to the light-passing axis of the second polarizer, and by disposing the second polarizer on the first polarizer, the second polarizer can take on the function of specular reflection while keeping the light-emitting side to transmit to the greatest extent, so as to ensure the display brightness of the display panel.

The following describes the display panel in the embodiment of the present application in detail with reference to fig. 2 to 5. The type of the display panel is not particularly limited in the embodiments of the present application, and may be, for example, an organic light emitting diode (Organic Light Emitting Diode, OLED) display panel or a liquid crystal (Liquid Crystal Display, LCD) display panel.

Example 1

Referring to fig. 2, the display panel 20 includes a pixel layer 21, a first polarizer 22, and a second polarizer 23.

The pixel layer 21 includes a plurality of display sub-pixels arranged in a matrix, and a corresponding thin film transistor unit provided for each of the display sub-pixels. The thin film transistor unit may also be referred to as a light emitting unit. The thin film transistor unit may include a source electrode S, a drain electrode D, a gate electrode G, and an active layer ACT. The pixel layer 21 may be electrically connected with a control component (not shown in fig. 1) of the display panel 10 to perform display in a display area. The pixel layer 21 has a light-emitting side 211, and light y emitted from the light-emitting unit is emitted from the light-emitting side 211.

First polarizer 22 may also be referred to as a light absorbing linear polarizer. The first polarizer 22 may include a PVA film. The first polarizer 22 is located at the light-emitting side 211. The first polarizer 22 has a first pass axis (not shown in fig. 2), and the first polarizer 22 is configured to transmit light having a polarization direction parallel to the first pass axis and absorb light having a polarization direction perpendicular to the first pass axis. The light with the polarization direction parallel to the first light passing axis is one of s-polarized light and p-polarized light, and the other light is light perpendicular to the first light passing axis. In other words, the first polarizer 22 is configured to pass one of s-polarized light and p-polarized light, while the other is absorbed. As to which polarization light is specifically absorbed by the first polarizer 22, it may be set according to practical requirements, and specifically, may be achieved by designing the angle of the first pass axis.

The second polarizer 23 may be understood as a polarizer having a reflection function, and thus, the second polarizer may also be referred to as a reflective polarizer. The second polarizer 23 includes, but is not limited to, any one of a multilayer film reflective polarizer (Advanced Polarizer Film, APF), a multilayer optical film (Dual Brightness Enhancement Film, DBEF), a direct-attached high-efficiency reflective polarizing film (Dual Brightness Enhancement Film, DLRP), a reflective polarizing film (Reflector polarizer mirror, RPM), a wire mesh reflective polarizing film, or the like.

The second polarizer 23 is located at a side of the first polarizer 22 away from the pixel layer 21, the second polarizer 23 has a second pass axis (not shown in fig. 2) and the second polarizer 23 is configured to transmit light having a polarization direction parallel to the second pass axis and reflect light having a polarization direction perpendicular to the second pass axis. The light with the polarization direction parallel to the second light passing axis is one of s-polarized light and p-polarized light, and the other light is light perpendicular to the second light passing axis. In other words, the second polarizer 23 is configured to be able to pass one of s-polarized light and p-polarized light, while the other is absorbed. As to which polarization light is specifically absorbed by the second polarizer 23, it may be set according to actual needs, and specifically, it may be achieved by designing the angle of the first pass axis. Wherein the first pass axis is parallel to the second pass axis.

By disposing the second polarizer 23 on the side of the first polarizer 22 away from the pixel layer 21 and disposing the first pass axis of the first polarizer 22 parallel to the second pass axis of the second polarizer 23, the ambient light x can be reflected maximally while the light y emitted from the pixel layer 21 can be transmitted maximally. Therefore, compared with the display panel in the related art, the display panel of the embodiment of the application can effectively improve the specular reflection effect and the display brightness of the display panel at the same time. Therefore, the display panel in the embodiment of the application can achieve both the specular reflection effect and the display brightness of the display panel.

Further, in order to avoid that light is emitted after being reflected back and forth between the pixel layer 21 and the second polarizer 23, thereby affecting the mirror display effect and the display effect of the display panel, for example, ambient light x enters the pixel layer 21 and is emitted after being reflected by the metal array in the pixel layer 21, which affects the imaging effect of the mirror reflection. For another example, the light y emitted by the pixel layer 21 reaches the second polarizer 23 and is reflected by the second polarizer 23 and then exits, so that the light interacts with the original pixel light to form bright and dark spots, and the positions of the bright and dark spots of each RGB are different, so that rainbow lines (or called stripes) appear in the display screen, as shown in fig. 2, the display panel in the embodiment of the present application may further include a wave plate 24.

The wave plate 24 may also be referred to as a lambda/4 wave plate, the wave plate 24 being located between the pixel layer 21 and the first polarizer 22. The wave plate 24 is configured to rotate the polarization direction of incident light by 90 degrees, in other words, the wave plate 24 is configured to adjust the phase of the outgoing light after passing through the wave plate 24 to be pi/4 different from the phase of the incident light before entering the wave plate 24. The incident light of the wave plate 24 may refer to light that needs to penetrate the wave plate 24, and for example, the incident light may be the above-described ambient light x or light emitted from the pixel layer 21. The light exiting the wave plate 24 may be the light exiting after entering the wave plate 24.

Preferably, the wave plate 24 is in contact with the first polarizer 22 and the optical axis (or retardation axis) of the wave plate 24 is configured to change the linearly polarized light from the first polarizer 22 into circularly polarized light. For example, the optical axis of the wave plate 24 is at an angle of 45 degrees to the first pass axis. The linear polarizer may be changed into left-handed circularly polarized light or right-handed circularly polarized light by making an angle of 45 degrees between the optical axis of the wave plate 24 and the first pass axis.

By disposing the wave plate 24 between the first polarizer 22 and the pixel layer 21 and setting the angle between the optical axis of the wave plate 24 and the first pass axis of the first polarizer 22 to 45 degrees, the ambient light x reflected by the metal array in the pixel layer 21 and the light y emitted by the pixel layer 21 reflected by the second polarizer 23 can be absorbed by the first polarizer 22. So that light can be prevented from being reflected back and forth between the pixel layer 21 and the second polarizer 23 to affect the mirror display effect and the display effect of the display panel.

Specifically, when the ambient light x passes through the first polarizer 22, the ambient light x becomes first linearly polarized light, the first linearly polarized light becomes circularly polarized light after passing through the wave plate 24, the circularly polarized light is reflected by the metal array in the pixel layer 21 and then passes through the wave plate 24 again, and becomes second linearly polarized light, the polarization direction of the second linearly polarized light is rotated by 90 degrees, and the polarization direction of the second linearly polarized light is perpendicular to the first light passing axis of the first polarizer 22, so that the second linearly polarized light is absorbed by the first polarizer 22, and the phenomenon of poor imaging effect of specular reflection caused by the back and forth reflection of the ambient light x is eliminated.

When the light y emitted by the pixel layer 21 passes through the wave plate 24 and becomes first circularly polarized light and then passes through the first polarizer 22, the third linearly polarized light is reflected by the second polarizer and then passes through the first polarizer 22 and the wave plate 24 and becomes circularly polarized light, the circularly polarized light is reflected by the metal array in the pixel layer 21 and then passes through the wave plate 24 again and becomes fourth linearly polarized light, the polarization direction of the fourth linearly polarized light is rotated by 90 degrees, and the polarization direction of the fourth linearly polarized light is perpendicular to the first light passing axis of the first polarizer 22, so that the phenomenon that the light emitted by the pixel layer 21 is reflected back and forth and has rainbow patterns in a display picture of a display panel is eliminated.

In some embodiments, as shown in fig. 3, the display panel 20 may further include an encapsulation layer 25 and a touch layer 26.

The encapsulation layer 25 is located between the pixel layer 21 and the wave plate 24 and the encapsulation layer 25 is used to encapsulate the pixel layer 21 to prevent external moisture or oxygen from penetrating into the pixel layer 21. The encapsulation layer 25 may include multiple layers. In some embodiments, the encapsulation layer 25 may also planarize the upper surface of the thin film transistor in the pixel layer 21.

The touch layer 26 may include a plurality of touch components for responding to a touch operation of a user. The touch component may be, for example, a touch electrode, a conductive bridge, and/or a connection line. The touch layer 26 is located on a side of the encapsulation layer 25 facing away from the pixel layer 21. Specifically, the touch layer 26 may be integrally provided with the encapsulation layer 25, for example, touch electrodes, conductive bridges, and/or connection lines in the touch layer are prepared in the touch layer 26. That is, the display panel in the embodiment of the present application may be a touch display panel in the form of TOE (Touch on Encapsulation).

Because the mirror reflection film layer adopted by the display panel in the embodiment of the application is the second polaroid, the second polaroid is the reflective polarizing film, and the arrangement of the first polaroid and the wave plate is matched, the display panel can be compatible with TOE (Touch on Encapsulation) touch control functions while the mirror display effect and the display brightness of the display panel are effectively ensured. The problem of touch control failure on a screen caused by shielding an electric signal due to the fact that a thin silver layer plated on a packaging layer is used as a semi-transparent semi-reflective mirror in the related art is avoided.

In some embodiments, as shown in fig. 3, the display panel 20 may further include a cover plate 27, and the second polarizer 23, the first polarizer 22, and the wave plate are stacked between the cover plate 27 and the encapsulation layer 26. Alternatively, the second polarizer 23 may be adhered to the cover plate 27 by an optical adhesive (Optically Clear Adhesive, OCA) 109. The cover plate 27 may be made of a light-transmitting material, for example, glass or PI. The cover plate 27 may function to protect the display panel 20 on one hand, and a touch area may be formed on the cover plate 27 to receive a touch operation of the display panel 20 by a user on the other hand.

Example two

As shown in fig. 4, the embodiment of the present application further provides a display panel 40. The display panel 40 includes a pixel layer 41, a first polarizer 42, a wave plate 43, and a second polarizer 44.

The pixel layer 41 has a light emitting side 411, and the pixel layer 41 is identical to the pixel layer 21 described above, and will not be described here again.

The first polarizer 42 may also be referred to as a light absorbing linear polarizer. The first polarizer 42 may include a PVA film. The first polarizer 42 is located at the light-emitting side 211. The first polarizer 42 has a first pass axis (not shown in fig. 4), and the first polarizer 42 is configured to transmit light having a polarization direction parallel to the first pass axis and absorb light having a polarization direction perpendicular to the first pass axis. The light with the polarization direction parallel to the first light passing axis is one of s-polarized light and p-polarized light, and the other light is light perpendicular to the first light passing axis. In other words, the first polarizer 42 is configured to be able to pass one of s-polarized light and p-polarized light, while the other is absorbed. As to which polarization light is specifically absorbed by the first polarizer 42, it may be set according to practical requirements, and specifically, it may be achieved by designing the angle of the first pass axis.

The wave plate 43 may be in contact with a side of the first polarizer 42 remote from the pixel layer 41 and the wave plate 43 is configured to output the linearly polarized light output by the first polarizer 42 as circularly polarized light having a first light passing direction. For example, the wave plate 43 may be a quarter wave plate (or an in/4 wave plate), and the specific configuration of the wave plate 43 may be that an included angle between an optical axis of the wave plate 43 and the first pass optical axis is set to be 45 degrees. The first light-passing direction may be, for example, left-handed or right-handed, and when the first light-passing direction is left-handed, the optical axis of the wave plate 43 may be located at a 45-degree angle clockwise with respect to the first light-passing axis, and when the first light-passing direction is right-handed, the optical axis of the wave plate 43 may be located at a 45-degree angle counterclockwise with respect to the first light-passing axis.

The second polarizer 44 is a circular polarized reflective polarizer, and for example, the second polarizer 44 may include a cholesteric liquid crystal layer or a cholesteric liquid crystal layer. The second polarizer 44 is located at a side of the wave plate 43 away from the first polarizer 42.

The second polarizer 44 has a second light passing rotation direction, and the second polarizer 44 is configured to transmit light having the same rotation direction as the second light passing rotation direction and reflect light having a rotation direction opposite to the second light passing rotation direction. The light with the same rotation direction as the second light passing direction is one of left-hand circularly polarized light and right-hand circularly polarized light, and the other light with the opposite rotation direction to the second light passing direction. In other words, the second polarizer 44 is configured to be able to pass one of the left-handed circularly polarized light and the right-handed circularly polarized light, while the other is reflected. As to which polarization light is reflected by the second polarizer 44, it may be set according to practical requirements, and specifically, it may be realized by designing the second light-transmitting direction. The second light-transmitting rotation direction is the same as the first light-transmitting rotation direction.

According to the embodiment of the application, the first polaroid 42, the wave plate 43 and the second polaroid 44 are arranged on the light emitting side of the pixel layer in a stacked mode, light output by the first polaroid 42 is converted into circular polarized light with the first light passing rotation direction through the wave plate 43, meanwhile, the first light passing rotation direction is set to be identical to the light passing rotation direction of the second polaroid 44, the second polaroid 44 can bear the function of a reflecting mirror surface, and meanwhile, the light emitting y of the pixel layer 41 is guaranteed not to be blocked by the second polaroid 44, so that the high brightness of the display panel is guaranteed.

In addition, due to the arrangement positions and the matching relation of the first polaroid 42, the wave plate 43 and the second polaroid 44, the ambient light x can be completely absorbed by the first polaroid 42 after passing through the circular polarization type second polaroid 44 and the wave plate 43, and the reflection of the metal array of the pixel layer 41 is eliminated, so that the diffraction is eliminated, the reflection haze is reduced, and the specular reflection imaging effect is improved. Meanwhile, the light y of the pixel layer 41 can be completely absorbed by the first polarizer 42 after being reflected by the second polarizer 44 and passing through the wave plate 43, so that the light y of the pixel layer 41 is effectively eliminated and reflected back to the pixel layer 41 by the circular polarization type second polarizer 44, and rainbow patterns in a display picture are eliminated.

In some embodiments, as shown in fig. 5, the display panel 40 may further include an encapsulation layer 45 and a touch layer 46, and a cover plate 47.

The encapsulation layer 45 and the touch layer 46 and the cover plate 47 are substantially identical to the encapsulation layer 25 and the touch layer 26 and the cover plate 27 described above, and thus, the description thereof will be omitted. Except that the encapsulation layer 45 is located between the pixel layer 41 and the first polarizer 42. The touch layer 46 may also be disposed on the encapsulation layer 55, and the touch layer 46 includes a plurality of touch components for responding to a touch operation of a user. The display panel in the embodiment of the application may be a touch display panel in the form of TOE (Touch on Encapsulation).

The mirror reflection film layer adopted by the display panel in the embodiment of the application is a reflection type polarizing film and a polarizer and a wave plate matched with the reflection type polarizing film, so that the display panel can effectively ensure the mirror display effect and the display brightness of the display panel and can also be compatible with the TOE (Touch on Encapsulation) touch function. The problem of touch control failure on a screen caused by shielding an electric signal due to the fact that a thin silver layer plated on a packaging layer is used as a semi-transparent semi-reflective mirror in the related art is avoided.

The embodiment of the application also provides a display device, which uses any one of the display panels described in the above embodiments. The display device may be: a liquid crystal panel, an OLED panel, a mobile phone (mobile phone), a tablet (Pad), a notebook, a palm computer, a mobile internet device (mobile internet device, MID), a wearable device, a television, a display, a digital photo frame, and any other product or component having a display function.

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

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

It should be understood that the term "and/or" used in the embodiments of the present application is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" in the embodiment of the present application generally indicates that the front-rear association object is an or relationship.

In the embodiments herein, the term "electrically connected" may refer to two components being directly electrically connected, or may refer to two components being electrically connected via one or more other components.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A display panel, comprising:

a pixel layer;

the first polaroid is positioned on the light emitting side of the pixel layer and is provided with a first light passing axis, and the first polaroid is configured to transmit light with a polarization direction parallel to the first light passing axis and absorb light with a polarization direction perpendicular to the first light passing axis;

the second polaroid is positioned on one side, far away from the pixel layer, of the first polaroid, the second polaroid is provided with a second light passing axis, and the second polaroid is configured to transmit light with a polarization direction parallel to the second light passing axis and reflect light with the polarization direction perpendicular to the second light passing axis;

wherein the first pass axis is parallel to the second pass axis.

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

and the wave plate is positioned between the pixel layer and the polaroid, and is configured to adjust the phase of emergent light of the wave plate to be pi/4 different from the phase of incident light of the wave plate.

3. The display panel according to claim 2, wherein the wave plate is in contact with the first polarizer, and an optical axis of the wave plate is configured to change linearly polarized light from the first polarizer into circularly polarized light.

4. A display panel according to claim 3, wherein the optical axis of the wave plate is at an angle of 45 degrees to the first pass axis.

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

the packaging layer is positioned between the pixel layer and the wave plate;

the touch control layer is positioned on one side, away from the pixel layer, of the packaging layer, and the touch control layer comprises a touch control component which is used for responding to touch control operation.

6. A display panel, comprising:

a pixel layer;

the first polaroid is positioned on the light emitting side of the pixel layer and is used for outputting incident light into linearly polarized light;

a wave plate in contact with a side of the polarizer remote from the pixel layer, the wave plate configured to output the linearly polarized light as circularly polarized light having a first light-passing handedness;

the second polaroid is positioned at one side of the wave plate away from the first polaroid, the second polaroid is provided with a second light-passing rotation direction, and the second polaroid is configured to transmit light with the same rotation direction as the second light-passing rotation direction and reflect light with the rotation direction opposite to the second light-passing rotation direction;

the first light-transmitting rotation direction is the same as the first light-transmitting rotation direction.

7. The display panel of claim 6, wherein the first polarizer has a first pass axis, and the optical axis of the wave plate is at an angle of 45 degrees to the first pass axis.

8. The display panel of claim 7, wherein the first polarizer is configured to transmit light having a polarization direction parallel to the first pass axis and to absorb light having a polarization direction perpendicular to the first pass axis.

9. The display panel of claim 6, further comprising:

the packaging layer is positioned between the pixel layer and the polaroid;

the touch control layer is positioned on one side, away from the pixel layer, of the packaging layer, and the touch control layer comprises a touch control component which is used for responding to touch control operation.

10. A display device comprising a display panel as claimed in any one of claims 1-9.