Display panel and display device

A display panel and a display device are provided in an embodiment of the present disclosure. The display panel includes a first substrate and a second substrate that are disposed opposite each other. A liquid crystal layer is disposed between the first substrate and the second substrate and the liquid crystal layer is doped with a chiral agent. In the present disclosure, the liquid crystal layer of the display panel is doped with a chiral agent and a helical twisting force generated by the chiral agent is used to drive liquid crystal molecules around a pixel to rotate, which can reduce a dark region around the pixel and increase transmittance of the display panel.

CROSS REFERENCE TO RELATED APPLICATIONS

The present disclosure claims the priority of the China Patent Application filed on Apr. 26, 2020 with the application number 202010338398.5 and titled “DISPLAY PANEL AND DISPLAY DEVICE”. The disclosures of which are incorporated herein by reference in their entirety.

FIELD OF INVENTION

The present disclosure relates to the field of display technology, and more particularly to a display panel and a display device.

BACKGROUND OF INVENTION

Polymer stabilized vertically alignment (PSVA) which is known as polymer stabilized vertical aligned liquid crystal in Chinese, is a new liquid crystal display technology. PSVA technology possesses the following advantages: (1) high contrast ratios: static contrast ratios may reach 16000:1; (2) wide viewing angles: large viewing angles have low color shifts less than 0.02, which meets the needs of multiperson viewing; (3) fast response times: dynamic image response times are less than 5 ms; (4) low power consumption: high transmittance (greater than 30%) can provide energy-efficient backlight modules; and (5) suitability for development of every generation of factories, which has been verified in manufacturing lines of 8.5 generations.

Ultraviolet irradiation processes are required to add in manufacturing processes of display panels for PSVA display modes. That is, ultraviolet light irradiation is performed under voltage, so that the liquid crystal molecules inclined in a certain direction are irradiated by ultraviolet light to polymerize the polymerizable monomer in the liquid crystal, thereby forming a certain pre-tilt angle. However, this way of the current pixel design scheme inevitably results in a certain region around pixels having an undesired condition, i.e., a dark region.

That is, a large area of a dark region exists around the pixels of the display panel in the prior art, which reduces transmittance of the display panel.

SUMMARY OF INVENTION

Technical Problems

Embodiments of the present disclosure provide a display panel and a display device, which can reduce dark regions around pixels and increase the transmittance of the display panel.

To solve the above problem, a first aspect of the present disclosure provides a display panel, comprising a first substrate and a second substrate disposed opposite each other, a liquid crystal layer disposed between the first substrate and the second substrate, wherein the liquid crystal layer is doped with a chiral agent, a pitch of the liquid crystal layer is 8 μm to 60 μm, and a product of the birefringence of the liquid crystal layer and a thickness of the liquid crystal layer is 300 nm to 550 nm.

The first substrate is an array substrate, the second substrate is a color filter substrate, a first polarizer is disposed on a side of the first substrate away from the liquid crystal layer, a pixel electrode layer is disposed on a side of the first substrate close to the liquid crystal layer, a second polarizer is disposed on a side of the second substrate away from the liquid crystal layer, a polarization direction of the first polarizer is perpendicular to a polarization direction of the second polarizer, and the pixel electrode layer comprises a plurality of pixel electrodes.

In order to solve the above problem, a second aspect of the present disclosure provides a display panel, comprising a first substrate and a second substrate disposed opposite each other, a liquid crystal layer is disposed between the first substrate and the second substrate, and the liquid crystal layer is doped with a chiral agent.

A pitch of the liquid crystal layer is 8 μm to 60 μm.

A product of the birefringence of the liquid crystal layer and a thickness of the liquid crystal layer is 300 nm to 550 nm.

The first substrate is an array substrate, the second substrate is a color filter substrate, a first polarizer is disposed on a side of the first substrate away from the liquid crystal layer, a pixel electrode layer is disposed on a side of the first substrate close to the liquid crystal layer, a second polarizer is disposed on a side of the second substrate away from the liquid crystal layer, a polarization direction of the first polarizer is perpendicular to a polarization direction of the second polarizer, and the pixel electrode layer comprises a plurality of pixel electrodes.

The pixel electrode comprises a first main electrode, a second main electrode, a third main electrode, and a fourth main electrode connected at one end, the first main electrode, the second main electrode, the third main electrode, and the fourth main electrode are sequentially arranged clockwise on the first substrate, two adjacent main electrodes are perpendicular to each other, a plurality of first sub-electrodes are provided between the first main electrode and the second main electrode, a plurality of second sub-electrodes are provided between the second main electrode and the third main electrode, a plurality of third sub-electrodes are provided between the third main electrode and the fourth main electrode, and a plurality of fourth sub-electrodes are provided between the fourth main electrode and the first main electrode.

The chiral agent is a levorotatory chiral agent, wherein at a viewing angle that the second substrate is facing toward the first substrate, after the pixel electrode is rotated counterclockwise into a first preset angle, the first main electrode is parallel to the polarization direction of the second polarizer, and a relationship between the first preset angle and the pitch of the liquid crystal layer satisfies any one of a first condition, a second condition, a third condition, a fourth condition, or a fifth condition,

wherein the first condition is: the pitch of the liquid crystal layer is not greater than 11 μm and the first preset angle is 30 degrees to 50 degrees;

the second condition is: the pitch of the liquid crystal layer is 11 μm to 13.5 μm and the first preset angle is 40 degrees to 60 degrees;

the third condition is: the pitch of the liquid crystal layer is 13.5 μm to 16 μm and the first preset angle is 45 degrees to 65 degrees;

the fourth condition is: the pitch of the liquid crystal layer is 16 μm to 18.5 μm and the first preset angle is 50 degrees to 70 degrees; and

the fifth condition is: the pitch of the liquid crystal layer is not less than 18.5 μm and the first preset angle is 55 degrees to 75 degrees.

An angle between the first sub-electrodes and the first main electrode is 45 degrees, and/or an angle between the second sub-electrodes and the second main electrode is 45 degrees, and/or an angle between the third sub-electrodes and the third main electrode is 45 degrees, and/or an angle between the fourth sub-electrodes and the fourth main electrode is 45 degrees.

the chiral agent is a levorotatory chiral agent, the first main electrode is parallel to the polarization direction of the second polarizer, an angle between the fourth sub-electrodes and the first main electrode is a second preset angle, an angle between the first sub-electrodes and the first main electrode is a third preset angle, a relationship between the second preset angle, the third preset angle, and the pitch of the liquid crystal layer satisfies any one of a sixth condition, a seventh condition, a eighth condition, and a ninth condition,

wherein the sixth condition is: the pitch of the liquid crystal layer is not greater than 13.5 μm, the second preset angle is 75 degrees to 90 degrees, and the third preset angle is 0 degrees to 15 degrees;

the seventh condition is: the pitch of the liquid crystal layer is 13.5 μm to 16 μm, the second preset angle is 70 degrees to 90 degrees, and the third preset angle is 0 degrees to 20 degrees;

the eighth condition is: the pitch of the liquid crystal layer is 16 μm to 18.5 μm, the second preset angle is 65 degrees to 90 degrees, and the third preset angle is 5 degrees to 25 degrees; and

the ninth condition is: the pitch of the liquid crystal layer is not less than 18.5 μm, the second preset angle is 60 degrees to 90 degrees, and the third preset angle is 10 degrees to 30 degrees.

The first sub-electrodes are parallel to the third sub-electrodes and the second sub-electrodes are parallel to the fourth sub-electrodes.

In order to solve the above problem, a third aspect of the present disclosure provides a display device, wherein the display device comprises a display panel, the display panel comprises a first substrate and a second substrate disposed opposite each other, a liquid crystal layer is disposed between the first substrate and the second substrate, and the liquid crystal layer is doped with a chiral agent.

A pitch of the liquid crystal layer is 8 μm to 60 μm.

A product of the birefringence of the liquid crystal layer and a thickness of the liquid crystal layer is 300 nm to 550 nm.

The first substrate is an array substrate, the second substrate is a color filter substrate, a first polarizer is disposed on a side of the first substrate away from the liquid crystal layer, a pixel electrode layer is disposed on a side of the first substrate close to the liquid crystal layer, a second polarizer is disposed on a side of the second substrate away from the liquid crystal layer, a polarization direction of the first polarizer is perpendicular to a polarization direction of the second polarizer, and the pixel electrode layer comprises a plurality of pixel electrodes.

The pixel electrode comprises a first main electrode, a second main electrode, a third main electrode, and a fourth main electrode connected at one end, the first main electrode, the second main electrode, the third main electrode, and the fourth main electrode are sequentially arranged clockwise on the first substrate, two adjacent main electrodes are perpendicular to each other, a plurality of first sub-electrodes are provided between the first main electrode and the second main electrode, a plurality of second sub-electrodes are provided between the second main electrode and the third main electrode, a plurality of third sub-electrodes are provided between the third main electrode and the fourth main electrode, and a plurality of fourth sub-electrodes are provided between the fourth main electrode and the first main electrode.

The chiral agent is a levorotatory chiral agent, wherein at a viewing angle that the second substrate is facing toward the first substrate, after the pixel electrode is rotated counterclockwise into a first preset angle, the polarization directions of the first main electrode is parallel to the second polarizer, and a relationship between the first preset angle and the pitch of the liquid crystal layer satisfies any one of a first condition, a second condition, a third condition, a fourth condition, or a fifth condition,

wherein the first condition is: the pitch of the liquid crystal layer is not greater than 11 μm and the first preset angle is 30 degrees to 50 degrees;

the second condition is: the pitch of the liquid crystal layer is 11 μm to 13.5 μm and the first preset angle is 40 degrees to 60 degrees;

the third condition is: the pitch of the liquid crystal layer is 13.5 μm to 16 μm and the first preset angle is 45 degrees to 65 degrees;

the fourth condition is: the pitch of the liquid crystal layer is 16 μm to 18.5 μm and the first preset angle is 50 degrees to 70 degrees; and

the fifth condition is: the pitch of the liquid crystal layer is not less than 18.5 μm and the first preset angle is 55 degrees to 75 degrees.

An angle between the first sub-electrodes and the first main electrode is 45 degrees, and/or an angle between the second sub-electrodes and the second main electrode is 45 degrees, and/or an angle between the third sub-electrodes and the third main electrode is 45 degrees, and/or an angle between the fourth sub-electrodes and the fourth main electrode is 45 degrees.

The chiral agent is a levorotatory chiral agent, the first main electrode is parallel to the polarization direction of the second polarizer, an angle between the fourth sub-electrodes and the first main electrode is a second preset angle, an angle between the first sub-electrodes and the first main electrode is a third preset angle, a relationship between the second preset angle, the third preset angle, and a pitch of the liquid crystal layer satisfies any one of the sixth condition, the seventh condition, the eighth condition, and the ninth condition,

wherein the sixth condition is: the pitch of the liquid crystal layer is not greater than 13.5 μm, the second preset angle is 75 degrees to 90 degrees, and the third preset angle is 0 degrees to 15 degrees;

the seventh condition is: the pitch of the liquid crystal layer is 13.5 μm to 16 μm, the second preset angle is 70 degrees to 90 degrees, and the third preset angle is 0 degrees to 20 degrees;

the eighth condition is: the pitch of the liquid crystal layer is 16 μm to 18.5 μm, the second preset angle is 65 degrees to 90 degrees, and the third preset angle is 5 degrees to 25 degrees; and

the ninth condition is: the pitch of the liquid crystal layer is not less than 18.5 μm, the second preset angle is 60 degrees to 90 degrees, and the third preset angle is 10 degrees to 30 degrees.

The first sub-electrodes are parallel to the third sub-electrodes and the second sub-electrodes are parallel to the fourth sub-electrodes.

Beneficial Effects

Compared with the prior art, the present disclosure provides a display panel including a first substrate and a second substrate that are oppositely arranged. A liquid crystal layer is disposed between the first substrate and the second substrate. The liquid crystal layer is doped with a chiral agent. In the present disclosure, the liquid crystal layer of the display panel is doped with a chiral agent. A helical twisting force generated by the chiral agent is used to drive the liquid crystal molecules around pixels to rotate, which can reduce a dark region around the pixel and increase the transmittance of the display panel.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The technical solutions of the embodiments of the present disclosure will be illustrated completely and clearly in combination with the following drawings of the embodiments of the disclosure. Apparently, the described embodiments are merely a few rather than all of the embodiments of the present disclosure. All other embodiments obtained by persons of ordinary skill in the art based on the embodiment of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

In the description of the present disclosure, it should be understood that orientation or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” are based on orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element must be in the specific orientation, constructed and operated in the specific orientation. Therefore, they shell not be construed as a limitation of the application. In addition, the terms “first” and “second” are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating a number of technical features indicated. Thus, the features defined as “first” and “second” may explicitly or implicitly include one or more features. In the description of the present disclosure, the meaning of “a plurality of” is two or more than two, unless otherwise specifically limited.

In the present disclosure, the word “exemplary” is used herein to mean “serving as an example, instance or illustration”. Any embodiment described as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments. In order to enable any person skilled in the art to implement and use this disclosure, the following description is given. In the following description, details are listed for explanatory purposes. It should be understood that people skilled in the art may recognize that the present disclosure can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail in order to avoid unnecessary details that obscure the description of the present disclosure. Therefore, the present disclosure is not intended to be limited to the illustrated embodiments, but is consistent with the widest scope of the principles and features disclosed in the present disclosure.

An embodiment of the present disclosure provides a display panel including a first substrate and a second substrate disposed opposite each other. A liquid crystal layer is disposed between the first substrate and the second substrate. The liquid crystal layer is doped with a chiral agent. In the present disclosure, the liquid crystal layer of the display panel is doped with a chiral agent and a helical twisting force generated by the chiral agent is used to drive liquid crystal molecules around a pixel to rotate, which can reduce the dark region around the pixel and increase transmittance of the display panel. The details are described below.

Referring toFIG. 1,FIG. 1is a schematic structural view of an embodiment of a display panel provided by an embodiment of the present disclosure.FIG. 2is a schematic view of an arrangement of a pixel electrode in a specific embodiment of the display panel ofFIG. 1at a viewing direction angle F3from the second substrate to the first substrate.FIG. 3is a schematic structural view of a pixel electrode in a specific embodiment of the display panel ofFIG. 1at a viewing direction F3from the second substrate to the first substrate.

Referring toFIGS. 1-3, in the present embodiment, the display panel10includes a first substrate16and a second substrate12disposed opposite each other. A liquid crystal layer14is disposed between the first substrate16and the second substrate12. The liquid crystal layer14is doped with a chiral agent. The liquid crystals of the liquid crystal layer14may be cholesteric liquid crystals. Cholesteric phase liquid crystals are named because they are first observed in liquid crystals of cholesteric esters and halides. In this type of liquid crystals, the elongated molecules are flat and equally arranged in layers by relying on interactions of the end groups. However, their long axes are on a plane of the layer. The molecules within the layer are similar to the nematic type. Orientations of the long axes of the molecules between two adjacent layers twist by a certain angle in sequence and are accumulated to form a spiral surface structure, due to an action of the optically active groups that extend out of the plane of the layer. A distance, by which the orientation direction of the liquid crystal molecules of the liquid crystal layer14undergoes a 360-degree change, is called a pitch P of the liquid crystal layer14. After the chiral agent is added to the liquid crystal layer14, the pitch P of the liquid crystal layer14can be changed. By adding a chiral agent to the liquid crystal layer14, a helical twisting force generated by the chiral agent can be used to drive the liquid crystal molecules around a pixel to rotate, which effectively reduces a width of a dark region around the pixel.

In a preferred embodiment, the pitch P of the liquid crystal layer14ranges from 8 μm to 60 μm. Specifically, the pitch P of the liquid crystal layer14can be adjusted from 8 μm to 60 μm by adjusting a concentration of the chiral agent. It can further reduce the dark region around the pixel electrode and improve transmittance.

Furthermore, a product of a birefringence of the liquid crystal layer14and a thickness of the liquid crystal layer14ranges from 300 nm to 550 nm, which can improve the transmittance per unit area. The thickness d of the liquid crystal layer14is between 2.5 μm to 4 μm.

Furthermore, the liquid crystal molecules of the liquid crystal layer14are negative liquid crystal molecules. Negative liquid crystal molecules refer to a type of liquid crystal molecules whose dielectric constant in the long axis direction of the liquid crystal molecules is smaller than a node constant in the short axis direction of the molecules. The negative liquid crystals are aligned perpendicularly to a direction of an electric field in the electric field. The transmittance of the display panel10can be further increased using the negative liquid crystal molecules.

In an embodiment of the present disclosure, the first substrate16is an array substrate. The second substrate12is a color filter substrate. A first polarizer17is disposed on a side of the first substrate16away from the liquid crystal layer14. A pixel electrode layer15is disposed on a side of the first substrate16close to the liquid crystal layer14. A second polarizer11is disposed on a side of the second substrate12away from the liquid crystal layer14. A polarization direction F2of the first polarizer17is perpendicular to a polarization direction F1of the second polarizer11. The pixel electrode layer15includes a plurality of pixel electrodes18. A common electrode layer13A is disposed on a side of the second substrate12close to the liquid crystal layer14.

It is noted that the display panel10may further include a red color filter layer, a green color filter layer, and a blue color filter layer for implementing color display, a black matrix layer for preventing light leakage, a support column for maintaining cell thickness. The first substrate16may be a flexible substrate or a common substrate, and the second substrate12may be a flexible substrate or a common ordinary substrate.

In a specific embodiment, a plurality of pixel electrodes18are arranged in an array on the first substrate16. The pixel electrode18includes a first main electrode181, a second main electrode182, a third main electrode183, and a fourth main electrode184connected at one end. The first main electrode181, the second main electrode182, the third main electrode183, and the four main electrodes184are arranged clockwise on the first substrate16. The two adjacent main electrodes are perpendicular to each other. A plurality of first sub-electrodes185are provided between the first main electrode181and the second main electrode182. A plurality of second sub-electrodes186are provided between the second main electrode182and the third main electrode183. A plurality of third sub-electrodes187are provided between the third main electrode183and the fourth main electrode184. A plurality of fourth sub-electrodes188are provided between the fourth main electrode184and the first main electrode181. An end of the first sub-electrode185is connected to the first main electrode181or the second main electrode182. An end of the second sub-electrode186is connected to the second main electrode182or the third main electrode183. An end of the third sub-electrode187is connected to the third main electrode183or the fourth main electrode184. An end of the fourth sub-electrode188are connected to the first main electrode181or the fourth main electrode184. A plurality of first sub-electrodes185are equally spaced from each other. A plurality of second sub-electrodes186are equally spaced from each other. A plurality of third sub-electrodes187are equally spaced from each other. A plurality of fourth sub-electrodes188are equally spaced from each other.

Specifically, the chiral agent of the liquid crystal layer14is a levorotatory chiral agent. Chiral agents can be divided into levorotatory chiral agents and right-handed chiral agents. According to different directions of light induced rotation of chiral molecules, levorotatory chiral agents rotate clockwise and right-handed Chiral agents rotate counterclockwise.

At a viewing direction from the second substrate12to the first substrate16, i.e., viewing from a direction F3ofFIG. 1, after the pixel electrode18rotates counterclockwise by a first preset angle φ1, the first main electrode181is parallel to the polarization direction F1of the second polarizer11. The relationship between the first preset angle φ1and a pitch P of the liquid crystal layer14satisfies any one of the first condition, the second condition, the third condition, the fourth condition, or the fifth condition.

The first condition is that: the pitch P of the liquid crystal layer14is not greater than 11 μm, and the first preset angle φ1ranges from 30 degrees to 50 degrees.

The second condition is that: the pitch P of the liquid crystal layer14ranges from 11 μm to 13.5 μm, and the first preset angle φ1ranges from 40 degrees to 60 degrees.

The third condition is that: the pitch P of the liquid crystal layer14ranges from 13.5 μm to 16 μm, and the first preset angle φ1ranges from 45 degrees to 65 degrees.

The fourth condition is that: the pitch P of the liquid crystal layer14ranges from 16 micrometers to 18.5 micrometers, and the first preset angle φ1ranges from 50 degrees to 70 degrees.

The fifth condition is that: the pitch P of the liquid crystal layer14is not less than 18.5 μm, and the first preset angle φ1ranges from 55 degrees to 75 degrees.

Furthermore, an included angle between the first divided electrode185and the first main electrode181is 45 degrees, and/or the included angle between the second divided electrode186and the second main electrode182is 45 degrees, and/or the third divided electrode187The angle with the third main electrode183is 45 degrees, and/or the angle between the fourth sub-electrode188and the fourth main electrode184is 45 degrees.

Referring toFIGS. 4 and 5,FIG. 4is a schematic view of the arrangement of the pixel electrodes in another specific embodiment of the display panel ofFIG. 1at a viewing direction from the second substrate to the first substrate.FIG. 5is a schematic structural view of the pixel electrode in another specific embodiment of the display panel ofFIG. 1at a viewing direction from the second substrate to the first substrate.

In another specific embodiment, a plurality of pixel electrodes28are arranged in an array on the first substrate16. The pixel electrode28includes a first main electrode281, a second main electrode282, a third main electrode283, and a fourth main electrode284connected at one end. The first main electrode281, the second main electrode282, the third main electrode283, and the first The four main electrodes284are arranged clockwise on the first substrate16in sequence. Two adjacent main electrodes are perpendicular to each other. A plurality of first sub-electrodes285are provided between the first main electrode281and the second main electrode282. A plurality of second sub-electrodes286are provided between the second main electrode282and the third main electrode283. A plurality of third sub-electrodes287are provided the third main electrode283and the fourth main electrode284. A plurality of fourth sub-electrodes288are provided between the fourth main electrode284and the first main electrode281. An end of the first sub-electrode285is connected to the first main electrode281or the second main electrode282. An end of the second sub-electrode286is connected to the second main electrode282or the third main electrode283. An end of the third sub-electrode287is connected to the third main electrode283or the fourth main electrode284. An end of the fourth sub-electrode288are connected to the first main electrode281or the fourth main electrode284. The first sub-electrodes285are equally spaced from each other. The second sub-electrodes286are equally spaced from each other. The third sub-electrodes287are equally spaced from each other. The fourth sub-electrodes288are equally spaced from each other.

The first main electrode281is parallel to the polarization direction F1of and the second polarizer11. An angle between the fourth sub-electrode288and the first main electrode281is the second preset angle φ2. An angle between the first sub-electrode285and the first main electrode281is the third preset angle φ3. A relationship between the second preset angle φ2, the third preset angle, and the pitch P of the liquid crystal layer14satisfies any one of the sixth condition, the seventh condition, the eighth condition, or the ninth condition.

The sixth condition is: a pitch P of the liquid crystal layer14is not greater than 13.5 μm. The second preset angle φ2is 75 degrees to 90 degrees. The third preset angle φ3is 0 degrees to 15 degrees.

The seventh condition is: the pitch P of the liquid crystal layer14is 13.5 μm to 16 μm. The second preset angle φ2is 70 degrees to 90 degrees. The third preset angle φ3is 0 degrees to 20 degrees.

The eighth condition is: the pitch P of the liquid crystal layer14is 16 μm to 18.5 μm. The second preset angle φ2is 65 degrees to 90 degrees. The third preset angle φ3is 5 degrees to 25 degrees.

The ninth condition is that the pitch P of the liquid crystal layer14is not less than 18.5 μm. The second preset angle φ2is 60 degrees to 90 degrees. The third preset angle φ3is 10 degrees to 30 degrees.

Furthermore, the first sub-electrode285is parallel to the third sub-electrode287. The second sub-electrode286is parallel to the fourth sub-electrode288.

Different from the prior art, the present disclosure provides a display panel including a first substrate and a second substrate disposed opposite each other. A liquid crystal layer is disposed between the first substrate and the second substrate. The liquid crystal layer is doped with a chiral agent. In the present disclosure, the liquid crystal layer of the display panel is doped with a chiral agent and a helical twisting force generated by the chiral agent is used to drive liquid crystal molecules around the pixels to rotate, which can reduce the dark region around the pixel and increase transmittance of the display panel.

The present disclosure also provides a display device including the above display panel10.

It is be noted that the embodiments of the above-mentioned display panel only describe the above-mentioned structures. Understandably, in addition to the above-mentioned structures, the display panel of the embodiments of the present disclosure may also include any other necessary structures according to the needs, such as a substrate a buffer layer, interlayer dielectric layer (ILD), which are not specifically limited herein.

During specific implementation, the above units or structures can be implemented as independent entities. They can also be combined in any combination and implemented as the same or several entities. For the specific implementation of the above units or structures, please refer to the above-mentioned method embodiments, which are not described in detail herein.

The display panel and display device provided by the embodiments of the present disclosure have been described in detail hereabove and specific examples have been used to explain the principles and embodiments of the present disclosure. The descriptions of the above embodiments are only used for understanding the methods and the principle ideas of the present disclosure. Meanwhile, according to the ideas of the present disclosure, people skilled in the art can carry out changes to the specific embodiments and application scope. In summary, the content of this specification shall not be construed to limit the present disclosure.