Display panel, display device, and vehicle

Abstract

The present application provides a display panel, a display device, and a vehicle. The display panel comprises a first-type pixel and a second-type pixel. The light emission viewing angle range of the second-type pixel is greater than that of the first-type pixel. The first-type pixel comprises a first sub-pixel of a first color, and the second-type pixel comprises a second sub-pixel of the first color. The display panel further comprises a substrate and a light regulation structure. The first-type pixel and the second-type pixel are arranged on one side of the substrate, and the light regulation structure is at least partially arranged on the side of the first-type pixel distant from the substrate. The orthographic projection area of the second sub-pixel on the substrate is greater than that of the first sub-pixel on the substrate, and the light emission efficiency of the first sub-pixel is greater than that of the second sub-pixel.

Description

Display panels, display devices and vehicles

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese patent application 202411061536.4, filed on August 2, 2024, entitled “Display Panel, Display Device and Vehicle”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of display equipment technology, and more particularly to a display panel, display device, and vehicle. Background Technology

[0004] With the development of science and technology, the display panel industry has also made great progress and achieved diversified development. On this basis, people's requirements for display panels are also increasing day by day. For example, people's demand for privacy protection technology is gradually increasing. Summary of the Invention

[0005] This application provides a display panel, a display device, and a vehicle, which can improve the user experience of the display panel.

[0006] In a first aspect, embodiments of this application provide a display panel, which includes a first type of pixel and a second type of pixel. The light emission viewing angle of the second type of pixel is greater than that of the first type of pixel. The first type of pixel includes a first sub-pixel of a first color, and the second type of pixel includes a second sub-pixel of the first color.

[0007] The display panel also includes a substrate and a dimming structure. First-type pixels and second-type pixels are disposed on one side of the substrate, and the dimming structure is at least partially disposed on the side of the first-type pixels facing away from the substrate. The projected area of ​​the second sub-pixel on the substrate is larger than that of the first sub-pixel, and the light-emitting efficiency of the first sub-pixel is greater than that of the second sub-pixel.

[0008] Secondly, embodiments of this application provide a display device, which includes the display panel in any of the foregoing embodiments.

[0009] Thirdly, embodiments of this application provide a vehicle that includes the display device described in any of the foregoing embodiments.

[0010] This application provides a display panel, display device, and vehicle. By setting the projected area of ​​the second sub-pixel on the substrate to be larger than that of the first sub-pixel, the second sub-pixel can have a longer service life than the first sub-pixel, thereby improving the overall lifespan of the display panel. Furthermore, by adding a dimming structure to make the light-emitting efficiency of the first sub-pixel greater than that of the second sub-pixel, the display difference between the first and second sub-pixels when emitting light is reduced, the display effect difference when the display panel switches between different modes is reduced, and the user's corresponding viewing experience is improved, achieving a simultaneous improvement in lifespan and display effect. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 is a schematic diagram of the pixel arrangement of a display panel provided in an embodiment of this application;

[0013] Figure 2 is a schematic diagram of the cross-sectional structure at point AA in Figure 2;

[0014] Figure 3 is a cross-sectional structural diagram of another display panel provided in an embodiment of this application;

[0015] Figure 4 is a cross-sectional structural diagram of another display panel provided in an embodiment of this application;

[0016] Figure 5 is a cross-sectional structural diagram of another display panel provided in an embodiment of this application;

[0017] Figure 6 is a cross-sectional structural diagram of another display panel provided in an embodiment of this application;

[0018] Figure 7 is a cross-sectional structural diagram of another display panel provided in an embodiment of this application;

[0019] Figure 8 is a schematic diagram of the pixel arrangement of another display panel provided in an embodiment of this application;

[0020] Figure 9 is a schematic diagram of the circuit structure of another display panel provided in an embodiment of this application;

[0021] Figures 10a to 10c are circuit timing diagrams of the circuit structure corresponding to Figure 9 under different operating modes;

[0022] Figure 11 is a schematic diagram of the structure of a display device provided in an embodiment of this application;

[0023] Figure 12 is a schematic diagram of the structure of an in-vehicle display provided in an embodiment of this application. Detailed Implementation

[0024] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the 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 only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0026] Display panels are typically suitable for various applications, and user requirements differ depending on the situation. In some cases, such as in automotive displays, to improve driving safety, it is often necessary to control the optical path of the display panel to achieve a privacy protection effect, reduce the impact of the displayed image on the driver, and minimize the risk of safety hazards.

[0027] In related technologies, to meet the privacy protection requirements of display panels, the panels need to have two types of pixels: privacy subpixels and normal subpixels (non-privacy subpixels). Privacy subpixels are used to achieve privacy protection, while normal subpixels are used to achieve wide viewing angles. Due to factors such as lifespan, normal and privacy subpixels often differ in size, shape, and quantity. Consequently, the display panel often exhibits different display effects for privacy protection and wide viewing angles, which can negatively impact the user's viewing experience.

[0028] To address the aforementioned issues, in the first aspect, please refer to Figures 1 and 2. This application provides a display panel 100, which includes a first type of pixel 10 and a second type of pixel 20. The light emission viewing angle of the second type of pixel 20 is greater than that of the first type of pixel 10. The first type of pixel 10 includes a first sub-pixel 10a of a first color, and the second type of pixel 20 includes a second sub-pixel 20a of the first color.

[0029] The display panel 100 also includes a substrate 30 and a dimming structure 40. First type pixels 10 and second type pixels 20 are disposed on one side of the substrate 30, and the dimming structure 40 is at least partially disposed on the side of the first type pixels 10 facing away from the substrate 30. The projected area of ​​the second sub-pixel 20a on the substrate 30 is larger than the projected area of ​​the first sub-pixel 10a on the substrate 30, and the light extraction efficiency of the first sub-pixel 10a is greater than the light extraction efficiency of the second sub-pixel 20a.

[0030] The first type pixel 10 and the second type pixel 20 are pixel structures with different functions. The first type pixel 10 and the second type pixel 20 may each include multiple sub-pixels for emitting different colors of light. The emission color of at least some sub-pixels in the first type pixel 10 may be the same as or different from the emission color of at least some sub-pixels in the first type pixel 10.

[0031] The first type pixel 10 can be formed by stacking multiple film layer structures. For example, the first type pixel 10 may include an anode, a light-emitting portion, and a cathode, with the light-emitting portion sandwiched between the anode and cathode. The anode and cathode, under the action of their respective corresponding electrical signals, jointly drive the light-emitting portion to achieve light emission and display. Furthermore, the first type pixel 10 may also include a pixel circuit corresponding to the light-emitting portion, which can control whether the first type pixel 10 emits light. The second type pixel 20 is similar, and will not be described further in this embodiment.

[0032] It should be noted that the specific functions of the first type pixel 10 and the second type pixel 20 are not limited in this embodiment. For example, the display panel 100 can be a privacy display panel 100. In this case, the first type pixel 10 can be a sub-pixel in the display panel 100 used to implement the privacy function, and the second type pixel 20 can be a sub-pixel in the display panel 100 used to implement the wide-viewing-angle light emission function. Specifically, the first type pixel 10 is a sub-pixel in the display panel 100 that can implement the display function within a narrow viewing angle range, and the second type pixel 20 is a sub-pixel in the display panel 100 that can implement the display function within a wide viewing angle range, wherein the light emission viewing angle range of the first type pixel 10 is within the light emission viewing angle range of the second type pixel 20.

[0033] Alternatively, the display panel 100 can also be a display panel 100 that displays different images under different viewing angles. In this case, the first type pixel 10 can be a sub-pixel of the display panel 100 that can realize the display function within the first viewing angle range, and the second type pixel 20 can be a sub-pixel of the display panel 100 that can realize the display function within the second viewing angle range. The first viewing angle range and the second viewing angle range do not overlap at least partially, and the light emission range corresponding to the first viewing angle range is smaller than the light emission range corresponding to the second viewing angle range. For ease of description, the embodiments of this application will be described below using the display panel 100 as a privacy display panel 100, the first type pixel 10 as a privacy sub-pixel, and the second type pixel 20 as a normal sub-pixel as an example.

[0034] The first type of pixel 10 includes a first sub-pixel 10a, and the second type of pixel 20 includes a second sub-pixel 20a. Both the first sub-pixel 10a and the second sub-pixel 20a are of a first color, meaning that the first sub-pixel 10a and the second sub-pixel 20a are used to emit light of the same color. The specific type of the first color is not limited in this embodiment. Optionally, the first color can be one of red, green, and blue.

[0035] In addition to the first type of pixels 10 and the second type of pixels 20, the display panel 100 also includes a substrate 30 and a dimming structure 40. The substrate 30 mainly serves as a support, and other film layers and device structures are sequentially stacked on the substrate 30. Here, "stacked" refers to the other film layers and device structures being sequentially arranged along the thickness direction Y of the substrate 30. The thickness direction Y of the substrate 30 is generally consistent with the thickness direction Y of other film layers. For ease of description, the following embodiments of this application will use the same direction to illustrate the thickness direction Y of the substrate 30 and other film layers.

[0036] The substrate 30 typically includes multiple film layer structures. For example, the substrate 30 may include stacked semiconductor layers and multiple conductor layers, as well as an insulating layer located between two adjacent conductor layers or between adjacent conductor layers and semiconductor layers. The specific film layer composition within the substrate 30 is not limited in this embodiment. Optionally, the conductor structures within the conductor layers and the semiconductor structures within the semiconductor structures together form a pixel circuit. Multiple pixel circuits are respectively configured to correspond to different first-type pixels 10 and second-type pixels 20 to control whether the first-type pixel 10 or the second-type pixel 20 emits light.

[0037] The first type pixel 10 and the second type pixel 20 are located on the same side of the substrate 30. The dimming structure 40 is at least partially disposed on the side of the first type pixel 10 away from the substrate 30, that is, the dimming structure 40 is located on the light-emitting surface side of the first type pixel 10, and the orthographic projection of the dimming structure 40 on the substrate 30 overlaps with the orthographic projection of the first type pixel 10 on the substrate 30. The dimming structure 40 is at least used to adjust the portion of light emitted from the first type pixel 10.

[0038] The positional relationship between the dimming structure 40 and the second type pixel 20 is not limited in this embodiment. Optionally, the orthographic projection of the dimming structure 40 on the substrate 30 may overlap with the orthographic projection of the second type pixel 20 on the substrate 30, so that the dimming structure 40 adjusts both the portion of light emitted from the first type pixel 10 and the portion of light emitted from the second type pixel 20. Alternatively, the orthographic projection of the dimming structure 40 on the substrate 30 may be located outside the orthographic projection of the second type pixel 20 on the substrate 30, that is, the dimming structure 40 may only adjust the portion of light emitted from the first type pixel 10, without adjusting the portion of light emitted from the second type pixel 20.

[0039] The dimming structure 40 can adjust light in various ways. For example, the dimming structure 40 may include a filter that can filter part of the light to adjust the color and brightness of the light exiting the dimming structure 40. Alternatively, the dimming structure 40 may include two structures with different refractive indices. These two structures can be used to adjust the propagation direction of the light exiting the dimming structure 40 to change the brightness at different viewing angles.

[0040] The specific method by which the dimming structure 40 adjusts the light is not limited in this embodiment, as long as the light-emitting efficiency of the first sub-pixel 10a is greater than that of the second sub-pixel 20a with the help of the dimming structure 40. Here, "light-emitting efficiency of the first sub-pixel 10a" refers to the brightness intensity of the light emitted from the first sub-pixel 10a and exiting the display panel 100 within a unit viewing angle. Similarly, "light-emitting efficiency of the second sub-pixel 20a" refers to the brightness intensity of the light emitted from the second sub-pixel 20a and exiting the display panel 100 within a unit viewing angle.

[0041] During the use of the display panel 100, the usage time of the first sub-pixel 10a and the second sub-pixel 20a often differs. Typically, the usage time of the second sub-pixel 20a is longer than that of the first sub-pixel 10a. Therefore, to improve the overall lifespan of the display panel 100, this embodiment adjusts the dimensions of the first sub-pixel 10a and the second sub-pixel 20a. By setting the projected area of ​​the second sub-pixel 20a on the substrate 30 to be larger than that of the first sub-pixel 10a on the substrate 30, the second sub-pixel 20a can have a longer usage time than the first sub-pixel 10a, thereby improving the overall lifespan of the display panel 100.

[0042] However, considering the size difference between the first sub-pixel 10a and the second sub-pixel 20a, there is a potential display difference between them when viewed from a normal viewing angle. This can negatively impact the user's viewing experience when the display panel 100 switches modes. Therefore, this embodiment of the application also adds a dimming structure 40. The dimming structure 40 makes the light emission efficiency of the first sub-pixel 10a greater than that of the second sub-pixel 20a. By leveraging the difference in light emission efficiency between the first sub-pixel 10a and the second sub-pixel 20a, the display difference between them caused by their size difference is reduced. This reduces the display effect difference when the display panel 100 switches between different modes, improving the user's viewing experience.

[0043] In summary, in this embodiment, by setting the projected area of ​​the second sub-pixel 20a on the substrate 30 to be larger than that of the first sub-pixel 10a on the substrate 30, the second sub-pixel 20a can have a longer service life than the first sub-pixel 10a, thereby improving the overall service life of the display panel 100. Furthermore, by adding a dimming structure 40 to make the light emission efficiency of the first sub-pixel 10a greater than that of the second sub-pixel 20a, the display difference between the first sub-pixel 10a and the second sub-pixel 20a when emitting light is reduced, thus reducing the display effect difference of the display panel 100 when switching between different modes, improving the user's corresponding viewing experience, and achieving a simultaneous improvement in service life and display effect.

[0044] It should be noted that, in addition to the first sub-pixel 10a of the first color, the first type pixel 10 may also include sub-pixels of other colors, and in addition to the second sub-pixel 20a of the first color, the second type pixel 20 may also include sub-pixels of other colors. The specific pixel types and arrangements within the first type pixel 10 and the second type pixel 20 are not limited in this embodiment. Optionally, the first type pixel 10 may also include a third sub-pixel 10b of the second color, and the second type pixel 20 may also include a fourth sub-pixel 20b of the second color. The projected area of ​​the fourth sub-pixel 20b on the substrate 30 is larger than that of the third sub-pixel 10b on the substrate 30, and the light extraction efficiency of the third sub-pixel 10b is greater than that of the fourth sub-pixel 20b.

[0045] Furthermore, this application embodiment does not limit the specific operating mode of the display panel 100. Exemplarily, the display panel 100 includes at least a privacy screen mode, and also includes at least one of a wide viewing angle mode and a high-brightness mode. In the privacy screen mode, the first type of pixel 10 emits light, while the second type of pixel 20 does not. In the wide viewing angle mode, the first type of pixel 10 does not emit light, while the second type of pixel 20 emits light. In the high-brightness mode, both the first type of pixel 10 and the second type of pixel 20 emit light.

[0046] In some embodiments, as shown in Figures 1 and 2, the display panel 100 includes a pixel definition layer 50 located on one side of the substrate 30. The pixel definition layer 50 includes a pixel defining portion 51 and a first pixel opening 52 and a second pixel opening 53 formed by and spaced apart from the pixel defining portion 51. The first sub-pixel 10a includes a first light-emitting portion 12 located within the first pixel opening 52, and the second sub-pixel 20a includes a second light-emitting portion 22 located within the second pixel opening 53. The projected area of ​​the second pixel opening 53 on the substrate 30 is larger than the projected area of ​​the first pixel opening 52 on the substrate 30.

[0047] The pixel definition layer 50 is a film layer structure in the display panel 100 used to define the positions of sub-pixels. The pixel definition layer 50 includes a pixel defining portion 51 and a first pixel opening 52 and a second pixel opening 53 formed by the pixel defining portion 51. The first pixel opening 52 and the second pixel opening 53 are used to accommodate the partial structures corresponding to different sub-pixels. For example, the display panel 100 also includes a device layer, which includes an anode layer, a light-emitting layer and a cathode layer stacked together. The sub-pixel includes an anode located in the anode layer, a light-emitting portion located in the light-emitting layer, and a cathode located in the cathode layer.

[0048] The specific positional relationship between the pixel definition layer 50 and the device layer is not limited in this embodiment. Exemplarily, a portion of the structure in the anode layer may be exposed in the first pixel opening 52 and the second pixel opening 53, while other structures may be covered by the pixel defining portion 51. Different light-emitting portions in the light-emitting layer are disposed at corresponding positions of the first pixel opening 52 and the second pixel opening 53. The cathode layer may have a full-surface structure, with some structures disposed at corresponding positions of the first pixel opening 52 and the second pixel opening 53, and other structures disposed on the side of the pixel defining portion 51 facing away from the substrate 30.

[0049] It should be noted that the pixel definition layer 50 is provided with through holes, and the inner sidewalls of the through holes have an inclined structure. In other words, the through holes include an upper opening and a lower opening, and the cross-sectional shape of the through holes along the thickness direction Y of the display panel 100 should be an inverted trapezoid, that is, the upper opening size is larger and the lower opening size is smaller. The first pixel opening 52 and the second pixel opening 53 mentioned in the embodiments of this application are the lower openings of the pixel definition layer 50 at different through hole positions.

[0050] In this embodiment, the structure of the pixel definition layer 50 is adjusted so that the size of the second pixel opening 53 is larger than the size of the first pixel opening 52, so that the projected area of ​​the second light-emitting part 22 formed at the second pixel opening 53 on the substrate 30 is larger than the projected area of ​​the first light-emitting part 12 formed at the first pixel opening 52 on the substrate 30, thereby increasing the usage time of the second sub-pixel 20a relative to the first sub-pixel 10a and increasing the overall service life of the display panel 100.

[0051] In some embodiments, as shown in Figures 1 and 2, the dimming structure 40 includes a filter layer 41, which includes a first filter portion 411 and a second filter portion 412. The orthographic projection of the first filter portion 411 onto the substrate 30 overlaps with the orthographic projection of the first sub-pixel 10a onto the substrate 30, and the orthographic projection of the second filter portion 412 onto the substrate 30 overlaps with the orthographic projection of the second sub-pixel 20a onto the substrate 30. The thickness of the first filter portion 411 is less than the thickness of the second filter portion 412.

[0052] The light filter layer 41 is a film structure in the display panel 100 used to filter a portion of the light. Specifically, the light filter layer 41 may include a light filter portion, which can selectively absorb or restrict light within a certain spectral range, while allowing the unabsorbed light to pass through smoothly, thus achieving selective light filtering.

[0053] The filter layer 41 includes a first filter portion 411 corresponding to the first sub-pixel 10a and a second filter portion 412 corresponding to the second sub-pixel 20a. The first filter portion 411 is used to filter at least a portion of the light emitted from the first sub-pixel 10a, and the second filter portion 412 is used to filter at least a portion of the light emitted from the second sub-pixel 20a. For example, both the first filter portion 411 and the second filter portion 412 are of a first color. For instance, if both the first sub-pixel 10a and the second sub-pixel 20a are used to emit red light, then both the first filter portion 411 and the second filter portion 412 can be red filter portions.

[0054] It should be noted that the specific positions of the first filter portion 411 and the second filter portion 412 are not limited in this embodiment. Optionally, the orthographic projection of the first filter portion 411 onto the substrate 30 may cover the orthographic projection of the first light-emitting portion 12 onto the substrate 30, and similarly, the orthographic projection of the second filter portion 412 onto the substrate 30 may cover the orthographic projection of the second light-emitting portion 22 onto the substrate 30. Further optionally, the orthographic projection area of ​​the second filter portion 412 onto the substrate 30 is larger than the orthographic projection area of ​​the first filter portion 411 onto the substrate 30, so that the orthographic projection sizes of the first filter portion 411 and the second filter portion 412 can be adapted to the orthographic projection sizes of the first sub-pixel 10a and the second sub-pixel 20a.

[0055] Furthermore, the embodiments of this application do not limit the relative relationship between the first filter part 411 and the second filter part 412. Optionally, the first filter part 411 may be connected to the second filter part 412 and integrally disposed, or the first filter part 411 may be spaced apart from the second filter part 412.

[0056] Furthermore, this application also differentiates the design of the first filter portion 411 and the second filter portion 412, making the thickness of the first filter portion 411 smaller than the thickness of the second filter portion 412. This helps to make the light extraction efficiency of the first sub-pixel 10a greater than that of the second sub-pixel 20a. Specifically, the thickness of the filter portion refers to its dimension in the thickness direction Y. The absorption and confinement effect of the filter portion on light is often positively correlated with its thickness dimension; that is, the greater the thickness of the filter portion, the stronger its light filtering effect.

[0057] Based on this, in this embodiment, the thickness of the first filter 411 is set to be less than the thickness of the second filter 412, so that the filtering effect of the first filter 411 on the light emitted from the first sub-pixel 10a is less than the filtering effect of the second filter 412 on the light emitted from the second sub-pixel 20a. This makes the light emission efficiency corresponding to the first sub-pixel 10a greater than the light emission efficiency corresponding to the second sub-pixel 20a, thereby reducing the difference in display effect of the display panel 100 in different modes.

[0058] In some embodiments, please refer to FIG1 and FIG3, the first filter portion 411 is connected to the second filter portion 412, and the filter layer 41 includes a first surface M1 facing away from the substrate 30 and a recess B formed by the inward recess of the first surface M1. The orthographic projection of the recess B on the substrate 30 overlaps with the orthographic projection of the first filter portion 411 on the substrate 30.

[0059] Considering that the first filter part 411 and the second filter part 412 can be used to filter light of the same color, the first filter part 411 and the second filter part 412 can be set to the same color and material, and the first filter part 411 and the second filter part 412 can be connected as one piece. This helps to reduce the manufacturing difficulty of the first filter part 411 and the second filter part 412.

[0060] Furthermore, in order to make the thickness of the first filter portion 411 less than the thickness of the second filter portion 412, a recess B is also formed on the first surface M1, wherein the first surface M1 is the surface of the filter layer 41 facing away from the substrate 30. The recess B can be formed in various ways. For example, a flat first surface M1 can be formed on the light-shielding layer 42 first, and then the filter layer 41 at the position corresponding to the first sub-pixel 10a can be etched to remove part of the structure in the filter layer 41 at the position corresponding to the first sub-pixel 10a, so that the first surface M1 is recessed at the position corresponding to the first sub-pixel 10a to form the recess B.

[0061] In summary, in this embodiment, considering that the first filter 411 and the second filter 412 can filter the same extended light, the first filter 411 and the second filter 412 are integrally connected, thereby reducing the manufacturing difficulty of the first filter 411 and the second filter 412. Simultaneously, a recess B is formed at the position corresponding to the first sub-pixel 10a. The recess B makes the thickness of the first filter 411 less than the thickness of the second filter 412, thereby making the light extraction efficiency of the first sub-pixel 10a greater than that of the second sub-pixel 20a, reducing the difference in display effect of the display panel 100 in different modes.

[0062] In some embodiments, as shown in Figures 1 and 3, the dimming structure 40 further includes a light-shielding layer 42. The light-shielding layer 42 includes a first light-shielding opening 421 and a second light-shielding opening 422 spaced apart. A first filter portion 411 is disposed within the first light-shielding opening 421, and a second filter portion 412 is at least partially disposed within the second light-shielding opening 422. The second filter portion 412 extends beyond the surface of the light-shielding layer 42 and is disposed away from the surface of the substrate 30.

[0063] The light-shielding layer 42 is a film structure in the display panel 100 that can block light. Some of the light propagating to the light-shielding layer 42 can be absorbed by the light-shielding layer 42, thus preventing it from escaping from the display panel 100. The light-shielding layer 42 includes a first light-shielding opening 421 and a second light-shielding opening 422 that are spaced apart. Similar to the first pixel opening 52 and the second pixel opening 53, the first light-shielding opening 421 and the second light-shielding opening 422 are also lower openings of the light-shielding layer 42 at different positions.

[0064] The first light-shielding opening 421 is disposed corresponding to the first sub-pixel 10a, and the first light-filtering part 411 is disposed within the first light-shielding opening 421. The second light-shielding opening 422 is disposed corresponding to the second sub-pixel 20a, and the second light-filtering part 412 is disposed within the second light-shielding opening 422. The specific positional relationship between the first light-shielding opening 421 and the second light-shielding opening 422 relative to the first sub-pixel 10a and the second sub-pixel 20a is not limited in this embodiment. Optionally, the orthographic projection of the first light-shielding opening 421 onto the substrate 30 may cover the orthographic projection of the first light-emitting part 12 onto the substrate 30; similarly, the orthographic projection of the second light-shielding opening 422 onto the substrate 30 may cover the orthographic projection of the second light-emitting part 22 onto the substrate 30. Further optionally, the projected area of ​​the second light-shielding opening 422 on the substrate 30 is larger than the projected area of ​​the first light-shielding opening 421 on the substrate 30, so that the projected dimensions of the first light-shielding opening 421 and the second light-shielding opening 422 can be adapted to the projected dimensions of the first sub-pixel 10a and the second sub-pixel 20a.

[0065] Furthermore, in this embodiment, the second filter portion 412 extends beyond the surface of the light-shielding layer 42 away from the substrate 30, that is, the thickness of the second filter portion 412 is greater than the thickness of the light-shielding layer 42. This design helps to meet the thickness difference requirement between the first filter portion 411 and the second filter portion 412, so that the thickness of the second filter portion 412 is greater than the thickness of the first filter portion 411, thereby reducing the display effect difference of the display panel 100 in different modes.

[0066] It should be noted that the relationship between the thickness of the first light-filtering portion 411 and the thickness of the light-shielding layer 42 is not limited in this embodiment. Optionally, the thickness of the first light-filtering portion 411 is not greater than the thickness of the light-shielding layer 42, that is, the first light-filtering portion 411 will not extend beyond the surface of the light-shielding layer 42 away from the substrate 30. This helps to reduce the filtering effect of the first light-filtering portion 411 on some of the light emitted from the first sub-pixel 10a and improve the light extraction efficiency of the first sub-pixel 10a.

[0067] In some embodiments, as shown in FIG3, the distance L4 between the second light-shielding opening 422 and the orthographic projection of the second sub-pixel 20a on the substrate 30 is greater than the distance L3 between the first light-shielding opening 421 and the orthographic projection of the first sub-pixel 10a on the substrate 30. The orthographic projection of the first sub-pixel 10a on the substrate 30 can correspond to the orthographic projection of the first pixel opening 52 on the substrate 30. Therefore, the distance L3 between the first light-shielding opening 421 and the orthographic projection of the first sub-pixel 10a on the substrate 30 is the same as the distance between the first light-shielding opening 421 and the orthographic projection of the first pixel opening 52 on the substrate 30. Similarly, the distance L4 between the second light-shielding opening 422 and the orthographic projection of the second sub-pixel 20a on the substrate 30 is the same as the distance between the second light-shielding opening 422 and the orthographic projection of the second pixel opening 53 on the substrate 30.

[0068] The distance between the orthographic projection of a sub-pixel onto the substrate 30 and the orthographic projection of the corresponding light-shielding opening onto the substrate 30 is often related to the light emission angle range of the sub-pixel. Specifically, the smaller the distance between the orthographic projection of the sub-pixel and the corresponding light-shielding opening onto the substrate 30, the more obliquely emitted wide-angle light rays emitted from the sub-pixel can be blocked by the light-shielding layer 42. Conversely, the larger the distance between the orthographic projection of the sub-pixel and the corresponding light-shielding opening onto the substrate 30, the more obliquely emitted wide-angle light rays emitted from the sub-pixel can exit the display panel 100 through the light-shielding opening.

[0069] In view of this, in this embodiment, the distance L4 between the second light-shielding opening 422 and the orthographic projection of the second sub-pixel 20a on the substrate 30 is set to be greater than the distance L3 between the first light-shielding opening 421 and the orthographic projection of the first sub-pixel 10a on the substrate 30. This allows more wide-viewing-angle light emitted by the first sub-pixel 10a to be blocked by the light-shielding layer 42, thereby meeting the privacy display requirements corresponding to the first sub-pixel 10a. It also allows more wide-viewing-angle light emitted by the second sub-pixel 20a to exit the display panel 100 through the second light-shielding opening 422, thereby meeting the wide-viewing-angle display requirements corresponding to the second sub-pixel 20a.

[0070] In some embodiments, the refractive index of the filter layer 41 is greater than the refractive index of the light-shielding layer 42.

[0071] Because of the refractive index difference between the filter layer 41 and the light-shielding layer 42, the propagation direction of light entering the light-shielding layer 42 from the filter layer 41 changes. Further referring to Figure 3, at the peripheral sidewall of the light-shielding opening, the light-shielding layer 42 connects with the filter layer 41 to form a first interface J1. At the first interface J1, since the refractive index of the filter layer 41 is greater than that of the light-shielding layer 42, the angle of refraction of light on the filter layer 41 side is smaller than that on the light-shielding layer 42 side. Based on this, some of the light propagating in the filter layer 41 and moving to the first interface J1 will undergo total internal reflection at the first interface J1, thereby reducing the amount of light entering the light-shielding layer 42 and improving the light extraction efficiency of the corresponding sub-pixel.

[0072] In this embodiment, by setting the refractive index of the filter layer 41 to be greater than that of the light-shielding layer 42, some of the light reaching the first interface J1 will undergo total internal reflection, thereby reducing the amount of light entering the light-shielding layer 42. This helps to further increase the light extraction efficiency corresponding to the first sub-pixel 10a, reduce the display difference caused by the size difference between the first sub-pixel 10a and the second sub-pixel 20a, and improve the user's viewing experience.

[0073] In some embodiments, referring to Figures 1 and 4, the dimming structure 40 further includes a light adjustment layer 43, which is used to change the propagation direction of the light emitted by the first sub-pixel 10a and the second sub-pixel 20a.

[0074] The light-adjusting layer 43 is disposed on the side of the first sub-pixel 10a and the second sub-pixel 20a facing away from the substrate 30, that is, on the light-emitting side of the first sub-pixel 10a and the second sub-pixel 20a. The light-adjusting layer 43 is a film layer structure in the display panel 100 that can change the direction of light propagation, and the light-adjusting layer 43 can have various forms. Specifically, the light-adjusting layer 43 may include at least two film layer structures with different refractive indices. At the interface between the two film layer structures, the light emitted by the first sub-pixel 10a or the second sub-pixel 20a will change its propagation direction due to the principle of refraction. Alternatively, the light-adjusting layer 43 may include a reflective layer, and the light propagating to the reflective layer can be reflected by the reflective layer and change its propagation direction.

[0075] Furthermore, in this embodiment, the structure of the light adjustment layer 43 at the first sub-pixel 10a and the second sub-pixel 20a can be differentiated, so that the light adjustment layer 43 can have different adjustment effects on the light emitted by the first sub-pixel 10a and the second sub-pixel 20a, thereby achieving the effect that the light emission efficiency corresponding to the first sub-pixel 10a is greater than that corresponding to the second sub-pixel 20a, reducing the display difference caused by the size difference between the first sub-pixel 10a and the second sub-pixel 20a, and improving the user's viewing experience.

[0076] In some embodiments, the light-adjusting layer 43 includes a low-refractive-index layer 45 and a high-refractive-index layer 44 stacked together, wherein the refractive index of the high-refractive-index layer 44 is greater than that of the low-refractive-index layer 45.

[0077] The high-refractive-index layer 44 and the low-refractive-index layer 45 are film structures made of different materials. Due to the different material compositions, the refractive indices of the materials corresponding to the high-refractive-index layer 44 and the low-refractive-index layer 45 are not the same. Based on this, light propagating to the interface between the high-refractive-index layer 44 and the low-refractive-index layer 45 will undergo refraction or total internal reflection, thereby changing the corresponding propagation direction of the light and improving the display effect of the display panel 100.

[0078] It should be noted that the high-refractive-index layer 44 and the low-refractive-index layer 45 can have various positional relationships. For example, the high-refractive-index layer 44 can be at least partially located on the side of the low-refractive-index layer 45 facing away from the substrate 30, or the low-refractive-index layer 45 can be at least partially located on the side of the high-refractive-index layer 44 facing away from the substrate 30, as long as the low-refractive-index layer 45 and the high-refractive-index layer 44 can contact each other to form an interface, thereby improving the corresponding light extraction efficiency by changing the propagation direction of the light. Optionally, at the interface between the high-refractive-index layer 44 and the low-refractive-index layer 45, at least a portion of the large-angle light rays can change their propagation direction and become small-angle light rays due to refraction or total internal reflection, thereby helping to improve the light extraction efficiency.

[0079] In this embodiment, at least one of the high-fold layer 44 and the low-fold layer 45 can be set to different shapes or sizes at different positions on the display panel 100, so that the light adjustment layer 43 can have different adjustment effects on the first sub-pixel 10a and the second sub-pixel 20a. In this way, only simple adjustments are needed to make the light emission efficiency of the first sub-pixel 10a greater than that of the second sub-pixel 20a, which has strong flexibility and practicality.

[0080] In some embodiments, as shown in FIG1 and FIG4, the low-fold layer 45 includes a first low-fold opening 451 corresponding to the first sub-pixel 10a and a second low-fold opening 452 corresponding to the second sub-pixel 20a, and the high-fold layer 44 at least partially fills the first low-fold opening 451 and the second low-fold opening 452.

[0081] The low-fold layer 45 includes a first low-fold opening 451 and a second low-fold opening 452. Similar to the first pixel opening 52 and the second pixel opening 53, the first low-fold opening 451 and the second low-fold opening 452 are lower openings of the low-fold layer 45 at different positions. The first low-fold opening 451 is set corresponding to the first sub-pixel 10a, and the second low-fold opening 452 is set corresponding to the second sub-pixel 20a. The specific positional relationship of the first low-fold opening 451 and the second low-fold opening 452 relative to the first sub-pixel 10a and the second sub-pixel 20a is not limited in this embodiment. Optionally, the orthographic projection of the first low-fold opening 451 on the substrate 30 can cover the orthographic projection of the first light-emitting part 12 on the substrate 30, and similarly, the orthographic projection of the second low-fold opening 452 on the substrate 30 can cover the orthographic projection of the second light-emitting part 22 on the substrate 30.

[0082] The high-fold layer 44 at least partially fills the first low-fold opening 451 and the second low-fold opening 452. The high-fold layer 44 may be located only within the low-fold openings, that is, the high-fold layer 44 may only include independent structures disposed in different low-fold openings and spaced apart from each other. Alternatively, the high-fold layer 44 may be partially located within the first low-fold opening 451 and the second low-fold opening 452, and partially located on the side of the low-fold layer 45 facing or away from the substrate 30. This can achieve the connection of the structures in the high-fold layer 44 located within the first low-fold opening 451 and the second low-fold opening 452 into one unit.

[0083] Furthermore, in this embodiment, the high-fold layer 44 and the low-fold layer 45 can be in contact with each other on the sidewalls of the first low-fold opening 451 and the second low-fold opening 452, that is, the interface between the high-fold layer 44 and the low-fold layer 45 includes the corresponding sidewalls of the first low-fold opening 451 and the second low-fold opening 452. Based on this, to address the difference in light emission efficiency between the first sub-pixel 10a and the second sub-pixel 20a, the sizes of the first low-fold opening 451 and the second low-fold opening 452 can be adjusted to be different, or the tilt angles of the corresponding sidewalls of the first low-fold opening 451 and the second low-fold opening 452 can be adjusted to be different, thereby allowing the light adjustment layer 43 to have different adjustment effects on the first sub-pixel 10a and the second sub-pixel 20a, so that the light emission efficiency corresponding to the first sub-pixel 10a can be greater than that corresponding to the second sub-pixel 20a.

[0084] In some embodiments, the distance L2 between the second low-profile opening 452 and the orthographic projection of the second sub-pixel 20a onto the substrate 30 is greater than the distance L1 between the first low-profile opening 451 and the orthographic projection of the first sub-pixel 10a onto the substrate 30. The orthographic projection of the first sub-pixel 10a onto the substrate 30 can correspond to the orthographic projection of the first pixel opening 52 onto the substrate 30. Therefore, the distance L1 between the first low-profile opening 451 and the orthographic projection of the first sub-pixel 10a onto the substrate 30 is the same as the distance between the first low-profile opening 451 and the orthographic projection of the first pixel opening 52 onto the substrate 30. Similarly, the distance L2 between the second low-profile opening 452 and the orthographic projection of the second sub-pixel 20a onto the substrate 30 is the same as the distance between the second low-profile opening 452 and the orthographic projection of the second pixel opening 53 onto the substrate 30.

[0085] The orthographic projection of the first low-fold opening 451 on the substrate 30 can cover or even exceed the orthographic projection of the first sub-pixel 10a on the substrate 30. The larger the distance L1 between the first low-fold opening 451 and the orthographic projection of the first sub-pixel 10a on the substrate 30, the more the first low-fold opening 451 covers and exceeds the size of the first sub-pixel 10a. Based on the foregoing, the peripheral sidewall of the first low-fold opening 451 is the second interface J2 between the low-fold layer 45 and the high-fold layer 44. Light emitted from the first sub-pixel 10a can be refracted or totally internally reflected at the second interface J2, thereby converting some large-angle light into small-angle light and improving light extraction efficiency.

[0086] Based on this, if the distance L1 between the first low-angle opening 451 and the orthographic projection of the first sub-pixel 10a onto the substrate 30 is larger, then light rays emanating from the first sub-pixel 10a with a wider viewing angle can pass through the first low-angle opening 451 and propagate to the second interface J2, thereby transforming into narrow-angle light rays. In other words, the larger the distance L1 between the first low-angle opening 451 and the orthographic projection of the first sub-pixel 10a onto the substrate 30, the stronger the light efficiency gain of the light adjustment layer 43 on the light emitted by the first sub-pixel 10a, and the higher the light extraction efficiency corresponding to the first sub-pixel 10a. The second low-angle opening 452 is similar, and will not be described again in this embodiment.

[0087] In view of this, in this embodiment of the application, the distance L2 between the second low-fold opening 452 and the second sub-pixel 20a projected onto the substrate 30 is set to be greater than the distance L1 between the first low-fold opening 451 and the first sub-pixel projected onto the substrate 30. This makes the light adjustment layer 43 have a stronger light efficiency gain for the first sub-pixel 10a than for the second sub-pixel 20a, thereby achieving the effect that the light emission efficiency corresponding to the first sub-pixel 10a is greater than that corresponding to the second sub-pixel 20a, and improving the user's viewing experience.

[0088] In some embodiments, the distance between the first low-profile opening 451 and the first sub-pixel 10a in the orthographic projection of the substrate 30 is L1, and the distance between the second low-profile opening 452 and the second sub-pixel 20a in the orthographic projection of the substrate 30 is L2. L1 and L2 satisfy: 0≤L1≤1μm, 1μm≤L2.

[0089] To improve the luminous efficacy gain of the light modulation layer 43 on the first sub-pixel 10a and thus enhance its light emission efficiency, this embodiment of the application features a limited size design for the first low-fold opening 451, ensuring that the spacing L1 is no greater than 1 μm. Furthermore, considering that a smaller size of the first low-fold opening 451 results in fewer light rays entering it, which can also affect the amount of light propagating to the second interface J2 and consequently impact the luminous efficacy gain of the light modulation layer 43 on the first sub-pixel 10a, this embodiment of the application also sets the spacing L1 to be no less than 0, meaning the first low-fold opening 451 can completely cover the first sub-pixel 10a on the substrate 30. This allows most of the light emitted from the first sub-pixel 10a to propagate through the first low-fold opening 451 to the second interface J2, thereby improving the luminous efficacy gain of the light modulation layer 43 on the first sub-pixel 10a. Optionally, L1 can be one of 0, 0.1 μm, 0.3 μm, 0.5 μm, 0.8 μm, and 1 μm.

[0090] In order to satisfy the difference in light emission efficiency between the second sub-pixel 20a and the first sub-pixel 10a, the spacing L2 needs to be greater than the spacing L1. Therefore, in this embodiment, L2 is set to be no less than 1μm to satisfy the size difference between the spacing L1 and the spacing L2. This allows the light adjustment layer 43 to have different light efficiency gains for the first sub-pixel 10a and the second sub-pixel 20a, so that the light emission efficiency of the first sub-pixel 10a is greater than that of the second sub-pixel 20a.

[0091] It should be noted that the maximum size corresponding to the spacing L2 needs to be determined based on the distance between the first low-bend opening 451 and the second low-bend opening 452. In other words, it needs to be determined based on the distance between adjacent first sub-pixel 10a and second sub-pixel 20a. However, in display panels 100 with different resolutions, the spacing between the first sub-pixel 10a and the second sub-pixel 20a can be set differently. Therefore, it needs to be determined based on the actual product. This application embodiment does not limit the maximum size corresponding to the spacing L2. Optionally, L2 can be one of 1μm, 1.5μm, 2μm, 3μm, and 5μm.

[0092] In some embodiments, as shown in FIG4, the high-fold layer 44 extends beyond the low-fold layer 45 away from the surface of the substrate 30, and the high-fold layer 44 includes a second surface M2 away from the substrate 30, the second surface M2 being a flat surface.

[0093] In addition to being partially located inside and outside the first low-fold opening 451 and the second low-fold opening 452, the high-fold layer 44 also has a portion of its structure extending beyond the low-fold layer 45 and away from the surface of the substrate 30. The portion of the high-fold layer 44 that extends beyond the low-fold layer 45 and away from the surface of the substrate 30 can be integrated with the portion of the high-fold layer 44 that is located within the first low-fold opening 451 and the second low-fold opening 452, thereby improving the overall stability of the high-fold layer 44.

[0094] Furthermore, the high-refractive-index layer 44 includes a second surface M2 facing away from the substrate 30. The second surface M2 is located on the side of the low-refractive-index layer 45 facing away from the substrate 30 and is spaced apart from the surface of the low-refractive-index layer 45 facing away from the substrate 30 in the thickness direction Y. The second surface M2 is a flat surface, meaning it is relatively flat. Based on this, when fabricating other film layer structures on the side of the light-adjusting layer 43 facing away from the substrate 30, the second surface M2 can provide a good surface environment for the fabrication of other film layer structures, thereby improving the bonding effect between the other film layer structures and the high-refractive-index layer 44, and improving the reliability and yield of the display panel 100.

[0095] It should be noted that the flat surface mentioned in the embodiments of this application does not mean that the second surface M2 is completely parallel to the plane of the substrate 30. Considering the influence of factors such as manufacturing precision, the second surface M2 may have some unevenness. The embodiments of this application do not limit this, as long as the second surface M2 can be relatively flat.

[0096] Furthermore, in this embodiment, since the high-fold layer 44 extends beyond the surface of the low-fold layer 45 away from the substrate 30, the surface of the low-fold layer 45 away from the substrate 30 is the third interface J3 between the low-fold layer 45 and the high-fold layer 44. Based on this, some of the light entering the interior of the low-fold layer 45 and propagating to the third interface J3 will be refracted at the third interface J3, causing some of the large-view light to be converted into small-view light, thereby helping to further improve the light efficiency gain of the light adjustment layer 43 for the first sub-pixel 10a.

[0097] In some embodiments, referring to Figures 1 and 5, the high-fold layer 44 includes a first high-fold portion 441 and a second high-fold portion 442 spaced apart. The first high-fold portion 441 overlaps with the first sub-pixel 10a in the orthographic projection on the substrate 30, and the second high-fold portion 442 overlaps with the second sub-pixel 20a in the orthographic projection on the substrate 30. The low-fold layer 45 covers the outer surfaces of the first high-fold portion 441 and the second high-fold portion 442.

[0098] The first high-fold portion 441 and the second high-fold portion 442 are different structures located at different positions on the high-fold layer 44 and are independent of each other. The first high-fold portion 441 is set corresponding to the first sub-pixel 10a, and the second high-fold portion 442 is set corresponding to the second sub-pixel 20a. Optionally, the orthographic projection of the first high-fold portion 441 on the substrate 30 covers the orthographic projection of the first pixel opening 52 on the substrate 30, and similarly, the orthographic projection of the second high-fold portion 442 on the substrate 30 covers the orthographic projection of the second pixel opening 53 on the substrate 30.

[0099] The low-fold layer 45 covers the outer surfaces of the first high-fold portion 441 and the second high-fold portion 442, meaning the low-fold layer 45 can contact the outer surfaces of the first high-fold portion 441 and the second high-fold portion 442 to form an interface. The low-fold layer 45 can have various structural forms. Specifically, the high-fold layer 44 can be completely located between adjacent high-fold portions, meaning the low-fold layer 45 will not extend beyond the surface of the high-fold layer 44 away from the substrate 30. Alternatively, the high-fold layer 44 can be partially located between adjacent high-fold portions, partially located on the side of the high-fold layer 44 facing or away from the substrate 30. This embodiment does not impose any limitations on this.

[0100] Furthermore, in this embodiment, the high-refractive-index layer 44 and the low-refractive-index layer 45 can form an interface by contacting the outer surfaces of the first high-refractive-index portion 441 and the second high-refractive-index portion 442, so that light propagating to the outer surfaces of the first high-refractive-index portion 441 and the second high-refractive-index portion 442 can be refracted or totally internally reflected, thereby achieving the adjustment effect of the light adjustment layer 43 on the light emitted by the first sub-pixel 10a and the second sub-pixel 20a. Based on this, the sizes and shapes of the first high-refractive-index portion 441 and the second high-refractive-index portion 442 can be set differently, so that the light adjustment layer 43 has different adjustment effects on the first sub-pixel 10a and the second sub-pixel 20a, making the light emission efficiency corresponding to the first sub-pixel 10a greater than that corresponding to the second sub-pixel 20a, thus possessing strong flexibility and practicality.

[0101] In some embodiments, the distance L6 between the outer contour of the second high fold portion 442 and the outer contour of the second sub-pixel 20a in the orthogonal projection of the substrate 30 is greater than the distance L5 between the outer contour of the first high fold portion 441 and the outer contour of the first sub-pixel 10a in the orthogonal projection of the substrate 30.

[0102] The orthographic projection of the first high-fold portion 441 on the substrate 30 can cover or even exceed the orthographic projection of the first sub-pixel 10a on the substrate 30. The larger the distance L5 between the outer contour of the first high-fold portion 441 and the orthographic projection of the outer contour of the first sub-pixel 10a on the substrate 30, the more the first high-fold portion 441 covers and exceeds the size of the first sub-pixel 10a. In conjunction with the foregoing, it can be seen that the low-fold layer 45 will at least partially fill the space between the first high-fold portion 441 and the second high-fold portion 442. Therefore, the peripheral sidewall of the first high-fold portion 441 is the fourth interface J4 between the low-fold layer 45 and the high-fold layer 44. The light emitted by the first sub-pixel 10a can be refracted or totally reflected at the fourth interface J4, thereby converting some of the large-angle light into small-angle light and improving the light extraction efficiency.

[0103] Based on this, if the distance L5 between the outer contour of the first high-fold portion 441 and the outer contour of the first sub-pixel 10a projected onto the substrate 30 is larger, then light rays emanating from the first sub-pixel 10a with a wider viewing angle range can enter the first high-fold portion 441 and propagate to the fourth interface J4, thereby transforming into narrow-angle light rays. In other words, the larger the distance L5 between the outer contour of the first high-fold portion 441 and the outer contour of the first sub-pixel 10a projected onto the substrate 30, the stronger the light efficiency gain of the light adjustment layer 43 on the light emitted by the first sub-pixel 10a, and the higher the light extraction efficiency corresponding to the first sub-pixel 10a. The second low-fold opening 452 is similar, and will not be described again in this embodiment.

[0104] In view of this, in this embodiment of the application, the distance L6 between the outer contour of the second high-fold portion 442 and the outer contour of the second sub-pixel 20a projected onto the substrate 30 is set to be greater than the distance L5 between the outer contour of the first high-fold portion 441 and the outer contour of the first sub-pixel 10a projected onto the substrate 30. This makes the light adjustment layer 43 have a stronger light efficiency gain for the first sub-pixel 10a than for the second sub-pixel 20a, thereby achieving the effect that the light emission efficiency corresponding to the first sub-pixel 10a is greater than that corresponding to the second sub-pixel 20a, and improving the user's viewing experience.

[0105] In some embodiments, referring to Figures 1 and 6, the first high fold portion 441 includes a third surface M3 facing away from the substrate 30. The third surface M3 includes an arcuate structure and protrudes in a direction away from the substrate 30.

[0106] The first high-fold portion 441 has two opposing surfaces in the thickness direction Y, and the third surface M3 is the surface that is relatively far away from the substrate 30. Furthermore, by providing the third surface M3 with an arc-shaped structure and protruding in a direction away from the substrate 30, the first high-fold portion 441 can have a structure similar to a convex lens. This allows the first high-fold portion 441 to achieve a focusing effect on the light emitted from the first sub-pixel 10a, thereby improving the light emission efficiency corresponding to the first sub-pixel 10a.

[0107] In related technologies, the overall size of the high-fold portion is usually positively correlated with the size of the corresponding sub-pixel, and the size of the arc-shaped structure on the third surface M3 is usually positively correlated with the overall size of the high-fold portion. Based on this, if the sub-pixel size is large, it can easily lead to a large size of the arc-shaped structure on the third surface M3 of the corresponding high-fold portion. However, due to the limitations of the film layer space where the high-fold portion is located, it may not be able to meet the space requirements for forming the arc-shaped structure.

[0108] However, in this embodiment, since the first sub-pixel 10a is small in size, the size of the first high-fold portion 441 corresponding to the first sub-pixel 10a is also small. Therefore, without requiring excessive film layer space, the arc-shaped structure of the third surface M3 on the first high-fold portion 441 can be formed. In other words, because the first sub-pixel 10a is small in size, the size of the arc-shaped structure on its corresponding third surface M3 is also small, and it will not adversely affect the overall size of the display panel 100.

[0109] In summary, the embodiments of this application can include an arc-shaped structure on the third surface M3 without affecting the overall size of the display panel 100. This arc-shaped structure can improve the focusing effect on the light emitted by the first sub-pixel 10a and improve the light emission efficiency of the first sub-pixel 10a, which has strong practicality.

[0110] It should be noted that the specific shape of the second high bend 442 is not limited in the embodiments of this application. Optionally, the cross-sectional shape of the second high bend 442 can be a trapezoidal structure, that is, the surface of the second high bend 442 away from the substrate 30 can be a flat surface.

[0111] In some embodiments, please refer to Figures 1 and 7. The first high fold portion 441 includes a first side surface M5 and a second side surface M6 opposite to each other in the first direction X. The first side surface M5 includes an arcuate structure and protrudes in a direction away from the second side surface M6. The first direction X is parallel to the plane where the substrate 30 is located. The low fold layer 45 is attached to the first side surface M5.

[0112] The first side M5 and the second side M6 are two opposite sides of the first high-fold portion 441 in the first direction X. The low-fold layer 45 is fitted to the first side M5, meaning the first side M5 can be the interface between the high-fold layer 44 and the low-fold layer 45. Based on this, the embodiment of this application includes an arc-shaped structure on the first side M5, protruding away from the second side M6. This allows the first side M5 to concentrate the light emitted from the first sub-pixel 10a, thereby improving the light emission efficiency of the first sub-pixel 10a.

[0113] Similarly, in other embodiments, the second side M6 includes an arcuate structure and protrudes away from the first side M5, with the low-fold layer 45 fitted to the second side M6. This allows the second side M6 to concentrate the light emitted from the first sub-pixel 10a, improving the light emission efficiency of the first sub-pixel 10a.

[0114] The relationship between the first side surface M5 and the third surface M3 is not limited in the embodiments of this application. Optionally, as shown in FIG7, both the third surface M3 and the first side surface M5 include arc-shaped structures, and the two are connected to each other to form a continuous arc-shaped structure.

[0115] In some embodiments, as shown in Figures 5 to 7, the low-fold layer 45 extends beyond the first high-fold portion 441 and the second high-fold portion 442 away from the surface of the substrate 30, and the low-fold layer 45 includes a fourth surface M4 away from the substrate 30, the fourth surface M4 being a flat surface.

[0116] In addition to being partially located between adjacent high folds, the low fold layer 45 also has a portion of its structure extending beyond the surface of the high fold layer 44 and away from the substrate 30. The portion of the low fold layer 45 that extends beyond the surface of the high fold layer 44 and away from the substrate 30 can be integrated with the portion of the low fold layer 45 located between adjacent high folds, thereby improving the overall stability of the low fold layer 45.

[0117] Furthermore, the low-fold layer 45 includes a fourth surface M4 facing away from the substrate 30. The fourth surface M4 is located on the side of the high-fold layer 44 facing away from the substrate 30 and is spaced apart from the surface of the high-fold layer 44 facing away from the substrate 30 in the thickness direction Y. The fourth surface M4 is a flat surface, meaning it is relatively flat. Based on this, when fabricating other film layer structures on the side of the light-adjusting layer 43 facing away from the substrate 30, the fourth surface M4 can provide a good surface environment for the fabrication of other film layer structures, thereby improving the bonding effect between the other film layer structures and the low-fold layer 45, and improving the reliability and yield of the display panel 100.

[0118] It should be noted that the flat surface mentioned in the embodiments of this application does not mean that the fourth surface M4 is completely parallel to the plane of the substrate 30. Considering the influence of factors such as manufacturing precision, the fourth surface M4 may have some unevenness. The embodiments of this application do not limit this, as long as the fourth surface M4 can be relatively flat.

[0119] Furthermore, in this embodiment, since the low-fold layer 45 extends beyond the surface of the high-fold layer 44 away from the substrate 30, the low-fold layer 45 can cover the surfaces of the first high-fold portion 441 and the second high-fold portion 442 away from the substrate 30. This allows the surface of the first high-fold portion 441 away from the substrate 30 to become the interface between the low-fold layer 45 and the high-fold layer 44. This interface helps to further improve the light efficiency gain of the light adjustment layer 43 on the first sub-pixel 10a.

[0120] In some embodiments, the high-fold layer 44 is made of at least one of zirconium oxide, hafnium oxide, tantalum oxide, niobium oxide, titanium oxide, yttrium oxide, silicon nitride, strontium titanate, tungsten oxide, and chromium oxide; and / or the low-fold layer 45 is made of at least one of quartz, fused silica, fluorine-doped fused silica, magnesium fluoride, calcium fluoride, aluminum fluoride, and ytterbium fluoride.

[0121] In this embodiment, by restricting the material composition of the high-refractive layer 44 and the low-refractive layer 45, the refractive index of the material corresponding to the high-refractive layer 44 can be higher than that of the material corresponding to the low-refractive layer 45. This allows the direction of light propagation to be changed at the interface between the high-refractive layer 44 and the low-refractive layer 45, thereby adjusting the light emission effect of the first sub-pixel 10a and the second sub-pixel 20a. This makes the light emission efficiency of the first sub-pixel 10a greater than that of the second sub-pixel 20a, reducing the display difference caused by the size difference between the first sub-pixel 10a and the second sub-pixel 20a, and improving the user's viewing experience.

[0122] In some embodiments, as shown in FIG1, the first sub-pixel 10a is arranged to surround and enclose the second sub-pixel 20a; or, referring to FIG8, the first sub-pixel 10a and the second sub-pixel 20a are arranged side by side.

[0123] In this embodiment, the first sub-pixel 10a and the second sub-pixel 20a can have various layout configurations. As shown in FIG1, the first sub-pixel 10a is arranged to surround the second sub-pixel 20a, that is, the orthographic projection of the first sub-pixel 10a on the substrate 30 can be in a ring-shaped structure, and the orthographic projection of the second sub-pixel 20a on the substrate 30 is located inside the ring-shaped structure. Optionally, the shape of the first sub-pixel 10a matches the shape of the second sub-pixel 20a. That is, if the orthographic projection of the first sub-pixel 10a on the substrate 30 is a square ring structure, the orthographic projection of the second sub-pixel 20a on the substrate 30 is a square structure. If the orthographic projection of the first sub-pixel 10a on the substrate 30 is a circular ring structure, then the orthographic projection of the second sub-pixel 20a on the substrate 30 is a circular ring structure.

[0124] Alternatively, as shown in Figure 8, the first sub-pixel 10a can be arranged side-by-side with the second sub-pixel 20a. There may be other sub-pixels between the closest first sub-pixel 10a and the second sub-pixel 20a, or there may be no other sub-pixels between them. This embodiment does not impose any restrictions on this. In this case, the shapes of the first sub-pixel 10a and the second sub-pixel 20a can be the same or different. For example, if the orthographic projection of the first sub-pixel 10a onto the substrate 30 is circular, then the orthographic projection of the second sub-pixel 20a onto the substrate 30 can be circular, square, or other shapes.

[0125] It should be noted that the first type pixel 10 includes other sub-pixels besides the first sub-pixel 10a, and the second type pixel 20 includes other sub-pixels besides the second sub-pixel 20a. The relative positional relationships between the other sub-pixels in the first type pixel 10 and the other sub-pixels in the second type pixel 20 are not limited in this embodiment. Optionally, the first type pixel 10 further includes a third sub-pixel 10b of the second color, and the second type pixel 20 further includes a fourth sub-pixel 20b of the second color. The positional relationship between the third sub-pixel 10b and the fourth sub-pixel 20b is similar to the positional relationship between the first sub-pixel 10a and the second sub-pixel 20a.

[0126] In the embodiments of this application, the first sub-pixel 10a and the second sub-pixel 20a can have multiple arrangement methods. That is, the solution provided in the embodiments of this application can be applied to multiple different pixel arrangement methods, as long as the orthogonal projection area of ​​the first sub-pixel 10a on the substrate 30 is smaller than the orthogonal projection area of ​​the second sub-pixel 20a on the substrate 30. This design can improve applicability and meet the needs of different types of display panels 100.

[0127] In some embodiments, the first type pixel 10 includes a first electrode 11, a first light-emitting portion 12, and a second electrode 13 sequentially stacked along a direction away from the substrate 30, and the second type pixel 20 includes a third electrode 21, a second light-emitting portion 22, and a fourth electrode 23 sequentially stacked along a direction away from the substrate 30. The first electrode 11 and the third electrode 21 are spaced apart; and / or, the second electrode 13 and the fourth electrode 23 are spaced apart. Figures 2 to 7 illustrate the case where the first electrode 11 and the third electrode 21 are spaced apart.

[0128] The first electrode 11 and the second electrode 13 are the anode and cathode corresponding to the first type pixel 10, respectively. The first light-emitting part 12 is the main component of the first type pixel 10 for realizing the light-emitting function. The first electrode 11 and the second electrode 13 jointly drive and control whether the first light-emitting part 12 emits light or not, so as to meet the display needs of the first type pixel 10. Similarly, the third electrode 21 and the fourth electrode 23 are the anode and cathode corresponding to the second type pixel 20, respectively. The second light-emitting part 22 is the main component of the second type pixel 20 for realizing the light-emitting function. The third electrode 21 and the fourth electrode 23 jointly drive and control whether the second light-emitting part 22 emits light or not, so as to meet the display needs of the second type pixel 20.

[0129] Based on the foregoing, it can be seen that the first type pixel 10 can be a privacy sub-pixel, and the second type pixel 20 is a normal sub-pixel, i.e., a non-privacy sub-pixel. In different operating modes, the first type pixel 10 and the second type pixel 20 may not emit light simultaneously. Specifically, the display panel 100 includes at least a privacy display mode, in which the first type pixel 10 emits light, and the second type pixel 20 does not emit light. Furthermore, considering that in at least some operating modes, the emission times of the first type pixel 10 and the second type pixel 20 are not completely consistent, the first light-emitting part 12 of the first type pixel 10 and the second light-emitting part 22 of the second type pixel 20 need to be independently controlled and driven to emit light.

[0130] Therefore, in this application, embodiments may be configured such that the first electrode 11 and the third electrode 21 are spaced apart to achieve insulation between the first electrode 11 and the third electrode 21, thereby enabling independent control of the first light-emitting part 12 and the second light-emitting part 22 by means of the mutually insulated first electrode 11 and third electrode 21; or the second electrode 13 and the fourth electrode 23 may be spaced apart to achieve insulation between the second electrode 13 and the fourth electrode 23, thereby enabling independent control of the first light-emitting part 12 and the second light-emitting part 22 by means of the mutually insulated second electrode 13 and fourth electrode 23.

[0131] It should be noted that, depending on the needs of different display panels 100, the first electrode 11 and the third electrode 21 can be spaced apart, and the second electrode 13 and the fourth electrode 23 can be connected as a single unit. Alternatively, the first electrode 11 and the third electrode 21 can be connected as a single unit, and the second electrode 13 and the fourth electrode 23 can be spaced apart. Alternatively, the first electrode 11 and the third electrode 21 can be spaced apart, and the second electrode 13 and the fourth electrode 23 can be spaced apart, as long as at least one of the anode and cathode in the first type pixel 10 and the second type pixel 20 is insulated from each other.

[0132] The embodiments of this application do not limit the structure and relative relationship of the pixel circuits corresponding to the first type pixel 10 and the second type pixel 20. In some optional embodiments, the first electrode 11 and the third electrode 21 are spaced apart, and the second electrode 13 and the fourth electrode 23 are connected as a single unit. Further, referring to Figures 2 and 9, some structures in the pixel circuits corresponding to the first type pixel 10 and the second type pixel 20 can be shared with each other, and the cathodes corresponding to both can be electrically connected to the same second power supply signal PVEE. The figures show 8 transistors and 1 storage capacitor C. Each transistor includes a first electrode, a second electrode, and a control terminal for controlling the conduction of the first electrode and the second electrode. Among them, the first electrode of the seventh transistor T7 is connected to the first electrode 11 of the first type pixel 10, and the control terminal is electrically connected to the first light emission signal EM1; the first electrode of the eighth transistor T8 is connected to the third electrode 21 of the second type pixel 20, and the control terminal is electrically connected to the second light emission signal EM2.

[0133] Based on this, except for the seventh transistor T7 and the eighth transistor T8, the other transistors in the pixel circuits corresponding to the first type pixel 10 and the second type pixel 20, as well as the storage capacitor C, are shared by each other. The connection relationships and connected signals of the storage capacitor C and most of the other transistors are consistent with those in pixel circuits in related technologies, and will not be repeated in this embodiment.

[0134] It should be noted that the first terminal of the first transistor T1 is electrically connected to the first power supply signal PVDD, and the control terminal is connected to the third light-emitting signal EM3. Unlike related technologies, the third light-emitting signal EM3 is transmitted independently of the first light-emitting signal EM1 and the second light-emitting signal EM2.

[0135] Furthermore, Figure 10 shows the timing diagrams of the circuit structure corresponding to Figure 9 at different stages. Specifically, the operation of the circuit structure includes a first reset stage, a charging stage, a second reset stage, and a light-emitting stage.

[0136] The first reset phase corresponds to time period t1, during which the fifth transistor T5 is in the on state, and the voltage corresponding to the first reset signal VREF1 is charged into node N1.

[0137] The charging phase corresponds to time period t2. During this period, the second transistor T2 and the fourth transistor T4 are in the on state, and the voltage corresponding to the data signal DATA is charged into the storage capacitor C. The first terminal of the third transistor T3 is electrically connected to the control terminal, forming a diode. The voltage charged into the storage capacitor C is VDATA-|VTH|. Here, VDATA represents the voltage value corresponding to the data signal DATA, and VTH represents the corresponding threshold voltage.

[0138] The second reset phase corresponds to time period t3, at which time the sixth transistor T6 is in the on state, and the voltage corresponding to the second reset signal VREF2 is charged into node N4.

[0139] The light-emitting stage corresponds to time period t4. During this period, all first transistors T1 are in the on state, and the storage capacitor C maintains the voltage charged during the charging stage at the control terminal of the third transistor T3. At least one of the seventh transistor T7 and the eighth transistor T8 is turned on, realizing the light-emitting display. Specifically, as shown in Figures 1, 2, and 10a, if the first light-emitting signal EM1 controls the seventh transistor T7 to turn on, and the second light-emitting signal EM2 does not control the eighth transistor T8 to turn on, then the first type pixel 10 emits light, the second type pixel 20 does not emit light, and the display panel 100 is in the privacy display mode. As shown in Figures 1, 2, and 10b, if the first light-emitting signal EM1 does not control the seventh transistor T7 to turn on, and the second light-emitting signal EM2 controls the eighth transistor T8 to turn on, then the first type pixel 10 does not emit light, the second type pixel 20 emits light, and the display panel 100 is in the wide-viewing-angle display mode. As shown in Figures 1, 2, and 10c, if the first light-emitting signal EM1 controls the seventh transistor T7 to turn on, and the second light-emitting signal EM2 controls the eighth transistor T8 to turn on, then the first type pixel 10 emits light, and the second type pixel 20 also emits light, and the display panel 100 is in a high-brightness display mode. The figures show the situation when the display panel 100 is in a privacy display mode.

[0140] It should be noted that in Figures 9 and 10, the transistors are illustrated using PMOS transistors (conducting at low level and cutting off at high level). In the actual display panel 100, some or all of the transistors can be changed to NMOS transistors (conducting at high level and cutting off at low level), and the timing can be adjusted accordingly. This will not be elaborated further here.

[0141] In some embodiments, the display panel 100 has at least a first operating mode and a second operating mode. In the first operating mode, the first type of pixel 10 emits light, and the second type of pixel 20 does not emit light; in the second operating mode, both the first type of pixel 10 and the second type of pixel 20 emit light; and / or,

[0142] The display panel 100 has at least a first working mode and a third working mode. In the third working mode, the first type of pixel 10 does not emit light, and the second type of pixel 20 emits light.

[0143] Based on the foregoing, the first working mode is the privacy display mode, the second working mode is the high-brightness display mode, and the third working mode is the wide-viewing-angle display mode. In this embodiment, the display panel 100 has at least a privacy display mode to meet privacy display requirements. Furthermore, the display panel 100 may selectively include at least one of a wide-viewing-angle display mode and a high-brightness display mode to meet the wide-viewing-angle display needs under different conditions, providing greater flexibility and practicality.

[0144] Secondly, referring to FIG11, this application embodiment provides a display device 200, which includes the display panel in any of the foregoing embodiments.

[0145] It should be noted that the display device 200 provided in this application embodiment has the beneficial effects of the display panel in any of the foregoing embodiments. For details, please refer to the foregoing description of the beneficial effects of the display panel. This application embodiment will not repeat the description.

[0146] Thirdly, this application provides a vehicle, as shown in Figure 12. The display device 200 provided in this application can be applied to the field of in-vehicle displays. The display device 200 is located in the passenger seat. During vehicle operation, the display device 200 can control only the first type of pixels to emit light, while the second type of pixels remain off, to reduce the impact of the displayed image on the driver and improve driving safety. When the vehicle is stationary, the display device 200 can control the second type of pixels to emit light, so that the person in the driver's seat can also observe the displayed image, thus meeting display requirements.

[0147] While the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit the invention. Any person skilled in the art to which this application pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of protection of this application shall still be determined by the scope defined in the appended claims.

Claims

1. A display panel, comprising a first type of pixel and a second type of pixel, a light-out viewing angle range of the second type of pixel being greater than a light-out viewing angle range of the first type of pixel, the first type of pixel comprising a first sub-pixel of a first color, the second type of pixel comprising a second sub-pixel of the first color. The display panel further comprises: a substrate, the first type of pixel and the second type of pixel are arranged on one side of the substrate; a light adjusting structure, at least partially arranged on a side of the first type of pixel away from the substrate; wherein the second sub-pixel has a larger area of orthographic projection on the substrate than the first sub-pixel, and the first sub-pixel has a larger light output efficiency than the second sub-pixel.

2. The display panel of claim 1, comprising a pixel definition layer arranged on one side of the substrate, the pixel definition layer comprising a pixel defining portion, and a first pixel opening and a second pixel opening enclosed by the pixel defining portion and arranged at intervals; the first sub-pixel comprises a first light emitting portion arranged in the first pixel opening, and the second sub-pixel comprises a second light emitting portion arranged in the second pixel opening, the second pixel opening having a larger area of orthographic projection on the substrate than the first pixel opening.

3. The display panel of claim 1, wherein, the light adjusting structure comprises a light filtering layer, the light filtering layer comprising a first light filtering portion and a second light filtering portion, the first light filtering portion being arranged to overlap the first sub-pixel in orthographic projection on the substrate, and the second light filtering portion being arranged to overlap the second sub-pixel in orthographic projection on the substrate; wherein the first light filtering portion has a smaller thickness than the second light filtering portion.

4. The display panel of claim 3, wherein, the first light filtering portion is connected to the second light filtering portion, the light filtering layer has a first surface away from the substrate, and a recess formed inwardly from the first surface, the recess being arranged to overlap the first light filtering portion in orthographic projection on the substrate.

5. The display panel of claim 3, wherein, the light adjusting structure further comprises a light shielding layer, the light shielding layer comprising a first light shielding opening and a second light shielding opening arranged at intervals, the first light filtering portion being arranged in the first light shielding opening, and the second light filtering portion being at least partially arranged in the second light shielding opening; wherein the second light filtering portion is arranged to partially protrude from a surface of the light shielding layer away from the substrate.

6. The display panel of claim 5, wherein, the second light shielding opening has a larger spacing between the second sub-pixel in orthographic projection on the substrate and the second light shielding opening than the first light shielding opening and the first sub-pixel in orthographic projection on the substrate.

7. The display panel of claim 5, wherein, the light filtering layer has a larger refractive index than the light shielding layer.

8. The display panel of claim 1, wherein, the light adjusting structure comprises a light adjusting layer for changing the propagation direction of light emitted by the first sub-pixel and the second sub-pixel.

9. The display panel of claim 8, wherein, the light adjusting layer comprises a low-refractive layer and a high-refractive layer arranged in layers, the high-refractive layer having a material refractive index greater than that of the low-refractive layer.

10. The display panel of claim 9, wherein, the low-refractive layer comprises a first low-refractive opening corresponding to the first sub-pixel, and a second low-refractive opening corresponding to the second sub-pixel, and the high-refractive layer at least partially fills the first low-refractive opening and the second low-refractive opening.

11. The display panel of claim 10, wherein, the second low-refractive opening has a larger spacing between the second sub-pixel in orthographic projection on the substrate and the second low-refractive opening than the first low-refractive opening and the first sub-pixel in orthographic projection on the substrate.

12. The display panel of claim 11, wherein, A distance between a projection of the first low-bending opening and the first sub-pixel on the substrate is L1, a distance between a projection of the second low-bending opening and the second sub-pixel on the substrate is L2, and L1 and L2 satisfy: 0≤L1≤1μm, 1μm≤L2.

13. The display panel of claim 10, wherein, The high-bending layer portion protrudes from the surface of the low-bending layer away from the substrate, and the high-bending layer includes a second surface away from the substrate, the second surface being a flat surface.

14. The display panel of claim 9, wherein, The high-bending layer includes a first high-bending portion and a second high-bending portion arranged at intervals, the first high-bending portion is arranged to overlap the projection of the first sub-pixel on the substrate, the second high-bending portion is arranged to overlap the projection of the second sub-pixel on the substrate, and the low-bending layer covers the outer surfaces of the first high-bending portion and the second high-bending portion.

15. The display panel of claim 14, wherein, A distance between a projection of the outer contour of the second high-bending portion and the second sub-pixel on the substrate is greater than a distance between a projection of the outer contour of the first high-bending portion and the first sub-pixel on the substrate.

16. The display panel of claim 14, wherein, The first high-bending portion includes a third surface away from the substrate, the low-bending layer is arranged to be attached to the third surface, the third surface includes an arc structure and protrudes away from the substrate.

17. The display panel of claim 14, wherein, The first high-bending portion includes a first side surface and a second side surface opposite in a first direction, the first side surface includes an arc structure and protrudes away from the second side surface, and the first direction is parallel to the plane in which the substrate is located. The low-bending layer is arranged to be attached to the first side surface.

18. The display panel of claim 14, wherein, The low-bending layer portion protrudes from the surface of the first high-bending portion and the second high-bending portion away from the substrate, and the low-bending layer includes a fourth surface away from the substrate, the fourth surface being a flat surface.

19. The display panel of claim 9, wherein, The material of the high-bending layer includes at least one of zirconium oxide, hafnium oxide, tantalum oxide, niobium oxide, titanium oxide, yttrium oxide, silicon nitride, strontium titanate, tungsten oxide, and chromium oxide; and / or, The material of the low-bending layer includes at least one of quartz, fused quartz, fluorine-doped fused quartz, magnesium fluoride, calcium fluoride, aluminum fluoride, and ytterbium fluoride.

20. The display panel of claim 1, wherein, The first sub-pixel is arranged to surround the second sub-pixel; or, The first sub-pixel and the second sub-pixel are arranged side by side.

21. The display panel of claim 1, wherein, The first type of pixel includes a first electrode, a first light-emitting portion, and a second electrode arranged in sequence away from the substrate, and the second type of pixel includes a third electrode, a second light-emitting portion, and a fourth electrode arranged in sequence away from the substrate. The first electrode and the third electrode are arranged at intervals; and / or, the second electrode and the fourth electrode are arranged at intervals.

22. The display panel of claim 20, wherein, The display panel has at least a first working mode and a second working mode, in the first working mode, the first type of pixel emits light, and the second type of pixel does not emit light; In the second working mode, the first type of pixel and the second type of pixel both emit light; And / or, The display panel has at least the first working mode and a third working mode, in the third working mode, the first type of pixel does not emit light, and the second type of pixel emits light.

23. A display device comprising the display panel of any one of claims 1 to 22.

24. A vehicle comprising the display device of claim 23.

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