Display panel, display device and driving method

Abstract

The present application discloses a display panel, a display device and a driving method, which relate to the field of display technology, and include: a substrate; a light-emitting unit; a retaining wall structure, which is located between adjacent light-emitting units; the retaining wall structure includes a first state and a second state; adjacent first display areas and second display areas, both of which are provided with light-emitting units; the first display area and the second display area are respectively located on both sides of the retaining wall structure; the display contents of the first display area and the second display area are the same, the retaining wall structure switches to the first state, and the portion of the retaining wall structure away from the substrate substrate is light-transmissive, or reflects the light emitted by the light-emitting unit in a direction away from the substrate substrate; the display contents of the first display area and the second display area are different, the retaining wall structure switches to the second state, and the portion of the retaining wall structure away from the substrate substrate absorbs light. The present application can effectively improve the brightness uniformity problem of the display panel by setting a retaining wall structure.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular, to a display panel, a display device and a driving method. Background Art

[0002] With the continuous development of display technology, LED (Light Emitting Diode) display panels are gradually being used in the display field due to their advantages such as small size, high luminous efficiency and low energy consumption.

[0003] For display panels integrated with LEDs, the traditional direct-type backlight design results in uneven display of the display panel due to the limitations of the optical properties of LEDs. To improve the contrast and uniformity of the display panel, two design directions are currently adopted. First, when the display panel is required to be very thin, a smaller LED spacing must be designed, which leads to a significant increase in cost. Second, in order to control the LED cost, a larger OD value is required, resulting in a thicker display panel. In addition, the above designs will cause the problem of light crosstalk between different LEDs, and the display panel will still have uneven brightness.

[0004] Therefore, there is an urgent need for an improved solution that can improve the uniformity of the display panel. Summary of the invention

[0005] In view of this, the present application provides a display panel, a display device and a driving method, which adopts a method of setting a baffle structure, and the baffle structure realizes different optical modes under different circumstances, which can effectively improve the brightness uniformity problem of the display panel and avoid the problem of light crosstalk between different display areas.

[0006] In order to solve the above technical problems, this application has the following technical solutions:

[0007] In a first aspect, the present application provides a display panel, comprising:

[0008] substrate substrate;

[0009] The light-emitting units are arranged in an array on a substrate;

[0010] The retaining wall structure is arranged in an array on the substrate, and the retaining wall structure is located between adjacent light-emitting units; the retaining wall structure includes a first state and a second state;

[0011] The adjacent first display area and the second display area are both provided with a light-emitting unit; along the direction perpendicular to the base substrate, the first display area and the second display area are respectively located on both sides of the retaining wall structure; when the display contents of the first display area and the second display area are the same, the retaining wall structure switches to the first state, and the portion of the retaining wall structure away from the base substrate is light-transmissive, or reflects the light emitted by the light-emitting unit in a direction away from the base substrate; when the display contents of the first display area and the second display area are different, the retaining wall structure switches to the second state, and the portion of the retaining wall structure away from the base substrate absorbs light.

[0012] In a second aspect, the present application also provides a display device, including a display panel, which is the display panel provided by the present application.

[0013] In a third aspect, the present application further provides a method for driving a display panel, the display panel comprising:

[0014] substrate substrate;

[0015] The light-emitting units are arranged in an array on a substrate;

[0016] The retaining wall structure is arranged in an array on the substrate, and the retaining wall structure is located between adjacent light-emitting units; the retaining wall structure includes a first state and a second state;

[0017] The adjacent first display area and the second display area;

[0018] The drive methods include:

[0019] Lighting up the light-emitting unit to determine whether the display contents of the first display area and the second display area are the same;

[0020] If they are the same, controlling at least a portion of the retaining wall structure to be light-transmissive or light-reflective;

[0021] If different, at least a portion of the retaining wall structure is controlled to be opaque.

[0022] Compared with the prior art, the display panel, display device and driving method provided by the present invention achieve at least the following beneficial effects:

[0023] The display panel, display device and driving method provided in the present application are provided with a first display area and a second display area adjacent to each other, and light-emitting units are provided in the first display area and the second display area; the orthographic projection of the first display area on a substrate perpendicular to the substrate and the orthographic projection of the second display area on a substrate perpendicular to the substrate are respectively located on both sides of the retaining wall structure; when the display contents of the first display area and the second display area are the same, the retaining wall structure switches to a first state, that is, the side of the retaining wall structure away from the substrate is light-transmissive and does not affect the penetration of light, or the side of the retaining wall structure away from the substrate has the function of reflecting light, which can reflect light directed to the retaining wall structure away from the substrate The light on one side is reflected to the light-emitting surface of the display panel. It can also be understood that the side of the baffle structure away from the substrate can reflect the light emitted by the light-emitting unit and emit it to the light-emitting surface of the display panel, so as to enhance the brightness of the display panel corresponding to the baffle structure, further enhance the brightness between adjacent light-emitting units, and improve the display uniformity of the display panel; when the display contents of the first display area and the second display area are different, the baffle structure switches to the second state, that is, the side of the baffle structure away from the substrate is opaque, and the side of the baffle structure away from the substrate has a light absorption function. The setting of the baffle structure can also block the mixing of light and improve the problem of light crosstalk. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 Shown is a schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0026] Figure 2 Shown Figure 1 A cross-sectional view of the display panel provided by the illustrated embodiment along the line AA';

[0027] Figure 3 Another schematic diagram of the structure of the display panel provided in the embodiment of the present application is shown;

[0028] Figure 4 Another schematic diagram of the structure of the display panel provided in the embodiment of the present application is shown;

[0029] Figure 5 Shown is a structural schematic diagram of a retaining wall structure provided in an embodiment of the present application;

[0030] Figure 6 Shown is a schematic diagram of a structure of a driving circuit provided in an embodiment of the present application;

[0031] Figure 7Another structural schematic diagram of a driving circuit provided in an embodiment of the present application is shown;

[0032] Figure 8 Another structural schematic diagram of a driving circuit provided in an embodiment of the present application is shown;

[0033] Fig. 9 Another structural schematic diagram of a driving circuit provided in an embodiment of the present application is shown;

[0034] Fig.10 Another schematic diagram of the structure of the display panel provided in the embodiment of the present application is shown;

[0035] Fig.11 Another schematic diagram of the structure of the display panel provided in the embodiment of the present application is shown;

[0036] Fig.12 Shown is a schematic structural diagram of a display device provided in an embodiment of the present application;

[0037] Fig.13 Shown is a flow chart of a method for driving a display panel provided in an embodiment of the present application;

[0038] Fig.14 Shown is another flow chart of a method for driving a display panel provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Substantially" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect. In addition, the term "coupled" includes any direct and indirect electrical coupling means. Therefore, if the text describes a first device coupled to a second device, it means that the first device can be directly electrically coupled to the second device, or indirectly electrically coupled to the second device through other devices or coupling means. The subsequent description of the specification is a preferred embodiment of the present application, but the description is for the purpose of illustrating the general principles of the present application, and is not used to limit the scope of the present application. The scope of protection of the present application shall be subject to the definition of the attached claims. Among them, the similarities between the various embodiments are not repeated one by one.

[0040] The following is a detailed description with reference to the accompanying drawings and specific embodiments.

[0041] Figure 1 FIG. 1 is a schematic diagram of a structure of a display panel provided in an embodiment of the present application. Figure 2 Shown Figure 1 A cross-sectional view of the display panel along the line AA' provided in the embodiment shown in FIG. Figure 1 and Figure 2 As shown, in this embodiment, a display panel 100 is provided, including:

[0042] Base substrate 10;

[0043] The light emitting units 20 are arranged in an array on the base substrate 10;

[0044] The retaining wall structures 30 are arranged in an array on the base substrate 10, and the retaining wall structures 30 are located between adjacent light-emitting units 20; the retaining wall structures 30 include a first state T1 and a second state T2;

[0045] The adjacent first display area 41 and the second display area 42 are both provided with a light-emitting unit 20; along the direction D1 perpendicular to the base substrate, the first display area 41 and the second display area 42 are respectively located on both sides of the retaining wall structure 30; when the display contents of the first display area 41 and the second display area 42 are the same, the retaining wall structure 30 switches to the first state T1, and the portion of the retaining wall structure 30 away from the base substrate 10 is light-transmissive, or reflects the light emitted by the light-emitting unit 20 in a direction away from the base substrate 10; when the display contents of the first display area 41 and the second display area 42 are different, the retaining wall structure 30 switches to the second state T2, and the portion of the retaining wall structure 30 away from the base substrate 10 absorbs light.

[0046] For more details, please refer to Figure 1 and Figure 2As shown, the display panel 100 provided in this embodiment includes a base substrate 10, and a light-emitting unit 20 located on one side of the base substrate 10. The light-emitting unit 20 is arranged in an array on the base substrate 10. Optionally, the light-emitting unit 20 can be Mini-LED or Micro-LED, wherein Mini-LED is also known as sub-millimeter light-emitting diode, which means LED with a grain size of about 100 microns to 1000 microns. Using Mini-LED as the light-emitting unit of the display panel has high yield, special-shaped cutting characteristics, and better color rendering. Micro-LED is an LED with a grain size of approximately 1-10 microns, which can realize a display screen with pixel particles of 0.05 mm or smaller. Micro-LED has very low power consumption, good material stability and no image retention. The present embodiment also includes a light-emitting unit driving circuit for driving the light-emitting unit 20. Optionally, the light-emitting unit driving circuit can be a circuit for driving Micro-LED or a circuit for driving Mini-LED. According to the selection of the light-emitting unit 20, a corresponding light-emitting unit driving circuit is set. The light-emitting unit driving circuit also includes multiple components, which are not listed one by one in this application. Any circuit that can drive the light-emitting element can be used.

[0047] The base substrate 10 of this embodiment can be used as a carrier to carry other structures of the display panel 100. The base substrate 10 can be a glass substrate or a flexible substrate, which is not specifically limited in this embodiment. A light-emitting unit 20 is provided on one side of the base substrate 10, and a retaining wall structure 30 is also provided. The retaining wall structure 30 is arranged between adjacent light-emitting units 20, and the retaining wall structure 30 is arranged in an array on the base substrate 10; wherein, when the retaining wall structure 30 is powered on, it can switch its optical state, that is, the retaining wall structure 30 includes a first state T1 and a second state T2, and by switching the retaining wall structure 30 in the first state T1 and the second state T2, different functions of the retaining wall structure 30 are realized.

[0048] In the related art, in order to improve the problem of regional light crosstalk, a retaining wall design is added between the light-emitting units; however, although the design of the retaining wall can improve the crosstalk problem between partitions, it is impossible to improve the brightness uniformity problem of the display panel in the prior art, that is, the brightness of the display panel area corresponding to the retaining wall is lower than that of the LED center area.

[0049] In view of this, please continue to refer to Figure 1 and Figure 2As shown, the display panel 100 provided in the present embodiment further includes a first display area 41 and a second display area 42 adjacent to each other, and light-emitting units 20 are provided in the first display area 41 and the second display area 42; optionally, the orthographic projection of the first display area 41 on the base substrate 10 and the orthographic projection of the second display area 42 on the base substrate 10 are respectively located on both sides of the retaining wall structure 30; when the display contents of the first display area 41 and the second display area 42 are the same, the retaining wall structure 30 switches to the first state T1, that is, the side of the retaining wall structure 30 away from the base substrate 10 is light-transmissive and does not affect the penetration of light, or the side of the retaining wall structure 30 away from the base substrate 10 has the function of reflecting light, which can reflect light incident on the side of the retaining wall structure 30 away from the base substrate 10 The light is reflected to the light-emitting surface C of the display panel, which can also be understood as the side of the baffle structure 30 away from the base substrate 10 can reflect the light emitted by the light-emitting unit 20 and direct the light to the light-emitting surface C of the display panel, so as to enhance the brightness of the display panel corresponding to the baffle structure 30, that is, it can enhance the brightness between adjacent light-emitting units 20 and improve the display uniformity problem of the display panel; when the display contents of the first display area 41 and the second display area 42 are different, the baffle structure 30 switches to the second state T2, that is, the side of the baffle structure 30 away from the base substrate 10 is opaque, which can also be understood as the side of the baffle structure 30 away from the base substrate 10 has a light absorption function, and the setting of the baffle structure 30 can also block the mixing of light and improve the problem of light crosstalk.

[0050] It should be noted that the thickness of the retaining wall structure 30 along the direction perpendicular to the base substrate 10 is 50 um to 300 um. Within this range, the thickness of the display panel and the function to be achieved by the retaining wall structure 30 are not affected.

[0051] It should be noted that Figure 1 The illustrated embodiment only schematically shows a positional relationship diagram of the light emitting unit 20 and the retaining wall structure 30 , and does not represent the actual size of the light emitting unit 20 and the retaining wall structure 30 , wherein only part of the light emitting unit 20 is shown in the display panel 100 ; Figure 2 The illustrated embodiment only schematically shows a positional relationship diagram of the light emitting unit 20 and the retaining wall structure 30 , and does not represent the actual sizes of the light emitting unit 20 and the retaining wall structure 30 .

[0052] Figure 3 FIG. 1 is another schematic diagram of the structure of a display panel provided in an embodiment of the present application. Figure 4 FIG. 1 is another schematic diagram of the structure of the display panel provided in the embodiment of the present application. Please refer to FIG. Figure 3 and Figure 4As shown, in an optional embodiment of the present application, when the retaining wall structure 30 is in the first state T1, the side of the retaining wall structure 30 away from the substrate 10 reflects light; when the retaining wall structure 30 is in the second state T2, the side of the retaining wall structure 30 away from the substrate 10 absorbs light.

[0053] It should be noted that Figure 3 The illustrated embodiment only schematically shows a schematic diagram of light reflected from a side of the retaining wall structure 30 away from the base substrate 10 , and does not represent the actual size of the retaining wall structure 30 ; Figure 4 The illustrated embodiment only schematically shows a schematic diagram of the side of the retaining wall structure 30 away from the base substrate 10 absorbing light, and does not represent the actual size.

[0054] For more details, please refer to Figure 3 and Figure 4 As shown, in this embodiment, when the retaining wall structure 30 is in the first state T1, the side of the retaining wall structure 30 away from the base substrate 10 has the function of reflecting light, and can reflect more light to the light-emitting surface C of the display panel, thereby enhancing the brightness of the display area corresponding to the retaining wall structure 30 and improving the display uniformity problem of the display panel 100; when the retaining wall structure 30 is in the second state T2, the side of the retaining wall structure 30 away from the base substrate 10 has the function of absorbing light, thereby preventing the mixing of light between the adjacent first display area 41 and the second display area 42 and improving the light crosstalk problem.

[0055] Figure 5 FIG. 1 is a schematic diagram of a retaining wall structure provided in an embodiment of the present application. Please refer to FIG. Figure 5 As shown, combined with Figure 3 and Figure 4 As shown, in an optional embodiment of the present application, the retaining wall structure 30 includes a microparticle layer 31, and the microparticle layer 31 includes a plurality of microparticles L, namely, a first microparticle L1 and a second microparticle L2, and the microparticles L are movable;

[0056] In the first state T1 , the first particles L1 gather on the side of the retaining wall structure 30 away from the base substrate 10 ; in the second state T2 , the second particles L2 gather on the side of the retaining wall structure 30 away from the base substrate 10 .

[0057] It should be noted that Figure 5 The illustrated embodiment only schematically shows the structure of the microparticle layer 31 , and does not represent the actual size of the microparticles L.

[0058] For more details, please refer to Figure 5 As shown, combined with Figure 3 and Figure 4As shown, in this embodiment, the retaining wall structure 30 includes a microparticle layer 31, and the microparticle layer 31 includes multiple particles of different types, namely, a first microparticle L1 and a second microparticle L2, wherein the microparticle L can move when the retaining wall structure 30 is in different states; optionally, when the retaining wall structure 30 is in the first state T1, the first microparticle L1 gathers to the side of the retaining wall structure 30 away from the substrate 10, and under the action of the first microparticle L1, the side of the retaining wall structure 30 away from the substrate 10 has a light reflecting effect; optionally, when the retaining wall structure 30 is in the second state T2, the second microparticle L2 gathers to the side of the retaining wall structure 30 away from the substrate 10, and under the action of the second microparticle L2, the side of the retaining wall structure 30 away from the substrate 10 has a light absorbing effect; in this way, when the display contents of the first display area 41 and the second display area 42 are the same, the retaining wall structure 30 has the effect of enhancing brightness, and when the display contents of the second display area 42 and the second display area 42 are different, the retaining wall structure 30 has the effect of blocking light crosstalk.

[0059] Please continue to refer to Figure 3 and Figure 4 As shown, in an optional embodiment of the present application, the first microparticle L1 reflects light and the second microparticle L2 absorbs light.

[0060] For more details, please refer to Figure 3 and Figure 4 As shown, in this embodiment, the first microparticle L1 has the function of reflecting light, and the second microparticle L2 has the function of absorbing light; wherein, the first microparticle L1 can reflect light, and it can be understood that the first microparticle L1 can reflect the light emitted by the light-emitting unit 20, enhance the brightness of the corresponding display panel 100, and improve the display uniformity of the display panel 100; the second microparticle L2 can absorb light, that is, it is not light-transmissive, and can block the problem of light crosstalk between adjacent display areas.

[0061] Please continue to refer to Figure 3 and Figure 4 As shown, in an optional embodiment of the present application, the first microparticles L1 are titanium dioxide particles, and the second microparticles L2 are black dye particles.

[0062] For more details, please refer to Figure 3 and Figure 4As shown, in this embodiment, the first microparticle L1 is a titanium dioxide particle, and the second microparticle L2 is a black dye particle; the microparticle layer 31 also includes hydrocarbon oil, titanium dioxide particles, black dye particles, and a charge control agent are added to the hydrocarbon oil, wherein the charge control agent can charge the titanium dioxide particles and the black dye particles, and the microparticle layer 31 is placed between parallel conductive plates. When a voltage is applied to the conductive plates, the titanium dioxide particles and the black dye particles will move to both sides of the retaining wall structure 30 along a direction D1 perpendicular to the substrate in an electrophoretic manner, respectively, to achieve different functions.

[0063] Please continue to refer to Figure 5 In an optional embodiment of the present application, the retaining wall structure 30 further includes a first electrode 32 and a second electrode 33 located on the same side or different sides of the microparticle layer 31; along a direction D1 perpendicular to the substrate, the first electrode 32 and the second electrode 33 at least partially overlap;

[0064] An electric field is formed between the first electrode 32 and the second electrode 33 , and the microparticles L move under the action of the electric field.

[0065] It should be noted that Figure 5 The illustrated embodiment only schematically shows a positional relationship between the first electrode 32 and the second electrode 33 , wherein the first electrode 32 and the second electrode 33 may have other positional relationships, and the sizes of the first electrode 32 and the second electrode 33 do not represent actual sizes.

[0066] For more details, please refer to Figure 5 As shown, in this embodiment, the retaining wall structure 30 also includes a first electrode 32 and a second electrode 33, and the orthographic projection of the first electrode 32 on the base substrate 10 at least partially overlaps with the orthographic projection of the second electrode 33 on the base substrate 10; wherein, the first electrode 32 and the second electrode 33 can be located on the same side of the microparticle layer 31 (not shown in the figure), or can be different layers of the microparticle layer 31, that is, the first electrode 32 and the second electrode 33 are respectively located on both sides of the microparticle layer 31; when the first electrode 32 and the second electrode 33 are energized, an electric field can be generated between the first electrode 32 and the second electrode 33, and the charged microparticles L can move under the action of the electric field; it can be understood that the charged titanium dioxide particles move to the negatively charged electrode, and the charged black dye particles move to the positively charged electrode, so as to realize different functions to be realized by different microparticles L.

[0067] Figure 6 FIG. 1 is a schematic diagram of a structure of a driving circuit provided in an embodiment of the present application. Figure 7 FIG. 1 is another schematic diagram of a driving circuit provided in an embodiment of the present application. Please refer to FIG. Figure 6 and Figure 7As shown, in an optional embodiment of the present application, it further includes: a driving circuit 50, each retaining wall structure 30 is correspondingly provided with a driving circuit 50, and the first electrode 32 or the second electrode 33 is electrically connected to the driving circuit 50.

[0068] It should be noted that Figure 6 and Figure 7 The illustrated embodiment schematically shows two states of the driving circuit 50 .

[0069] For more details, please refer to Figure 6 and Figure 7 As shown, combined with Figure 5 As shown, the display panel 100 in this embodiment also includes a driving circuit 50, and each retaining wall structure 30 is correspondingly provided with a driving circuit 50, and the driving circuit 50 can control the retaining wall structure 30 to realize the first state T1 or the second state T2; wherein, the driving circuit 50 is electrically connected to the first electrode 32 or the second electrode 33 in the retaining wall structure 30 to control the first electrode 32 or the second electrode 33 to be charged, and further realize the movement of the microparticles L in the microelectronic layer to realize different functions of the retaining wall structure 30.

[0070] It should be noted that each retaining wall structure 30 corresponds to a driving circuit 50 , and each retaining wall structure 30 can be driven individually, so that different optical states of different retaining wall structures 30 can be flexibly and accurately controlled.

[0071] Please continue to refer to Figure 6 and Figure 7 As shown, in an optional embodiment of the present application, it further includes: gate lines G, at least part of the gate lines G extending along the first direction d1 and arranged along the second direction d2; data lines S, at least part of the data lines S extending along the second direction d2 and arranged along the first direction d1; the first direction d1 and the second direction d2 intersect;

[0072] The driving circuit 50 is electrically connected to the gate lines G and the data lines S, respectively.

[0073] For more details, please refer to Figure 6 and Figure 7 As shown, the display panel 100 in this embodiment also includes gate lines G and data lines S, at least part of the gate lines G extend along the first direction d1 and are arranged along the second direction d2, and at least part of the data lines S are arranged along the first direction d1 and extend along the second direction d2; wherein the first direction d1 and the second direction d2 intersect, and optionally, the first direction d1 is perpendicular to the second direction d2; each driving circuit 50 is electrically connected to the gate line G and the data line S, respectively, and is used to control the input of an electrical signal to the first electrode 32 or the second electrode 33 of the retaining wall structure 30, so as to realize the switching of the retaining wall structure 30 to the first state T1 or the second state T2, so as to meet different requirements of the display panel 100.

[0074] Please continue to refer to Figure 6 and Figure 7 As shown, in an optional embodiment of the present application, the driving circuit 50 includes a thin film transistor 51, a gate of the thin film transistor 51 is electrically connected to the gate line G, and a source and a drain of the thin film transistor 51 are electrically connected to the data line S and the first electrode 32 respectively;

[0075] The device further comprises a first signal line K, wherein the first signal line K is electrically connected to the second electrode 33 .

[0076] For more details, please refer to Figure 6 and Figure 7 As shown, in this embodiment, the driving circuit 50 includes a thin film transistor 51, and the thin film transistor 51 includes a gate and a source and a drain, wherein the gate of the thin film transistor 51 is electrically connected to the gate line G, the source and the drain of the thin film transistor 51 are electrically connected to the data line S and the first electrode 32 respectively, and the second electrode 33 is electrically connected to the first signal line K. The gate line G is used to control the conduction of the thin film transistor 51, and the data line S inputs a voltage signal to the first electrode 32 through the thin film transistor 51, and the first signal line K inputs a second voltage signal to the second electrode 33, so that an electric field is generated between the first electrode 32 and the second electrode 33, so that the particles L in the particle layer 31 in the retaining wall structure 30 move, thereby realizing different optical states of the retaining wall structure 30.

[0077] Figure 8 FIG. 1 is another schematic diagram of the structure of the driving circuit provided in the embodiment of the present application. Fig. 9 FIG. 1 is another schematic diagram of a driving circuit provided in an embodiment of the present application. Please refer to FIG. Figure 8 and Fig. 9 As shown, combined with Figure 1 As shown, in an optional embodiment of the present application, it further includes: a retaining wall structure row 34, extending along the first direction d1 and arranged along the second direction d2, the retaining wall structure row 34 includes a plurality of retaining wall structures 30; a retaining wall structure column 35, extending along the second direction d2 and arranged along the first direction d1, the retaining wall structure column 35 includes a plurality of retaining wall structures 30;

[0078] In the same gate line G, at least a portion of the retaining wall structures 30 in the same retaining wall structure row 34 is electrically connected, and at least a portion of the retaining wall structures 30 in different retaining wall structure columns 35 are electrically connected; in the same data line S, at least a portion of the retaining wall structures 30 in the same retaining wall structure column 35 are electrically connected, and at least a portion of the retaining wall structures 30 in different retaining wall structure rows 34 are electrically connected.

[0079] It should be noted that Figure 8The illustrated embodiment schematically shows only one form of electrical connection between the retaining wall structure 30 in the retaining wall structure row 34 and the gate line G and the data line S, and does not represent the actual arrangement form; Fig. 9 The illustrated embodiment schematically shows only one form of electrical connection between the retaining wall structures 30 in the retaining wall structure column 35 and the gate lines G and the data lines S, and does not represent an actual arrangement form.

[0080] For more details, please refer to Figure 8 and Fig. 9 As shown, combined with Figure 1 As shown, the display panel 100 in this embodiment further includes a retaining wall structure row 34 and a retaining wall structure column 35. The retaining wall structure row 34 extends along the first direction d1 and is arranged along the second direction d2. The retaining wall structure column 35 is arranged along the first direction d1 and extends along the second direction d2. The retaining wall structure row 34 and the retaining wall structure column 35 each include a plurality of retaining wall structures 30. It can also be understood that four retaining wall structures 30 are correspondingly arranged for the same light-emitting unit 20, and one retaining wall structure 30 arranged along the second direction d2 and two retaining wall structures 30 arranged along the first direction d1 share the same gate line G. A retaining wall structure 30 arranged along the first direction d1 and two retaining wall structures 30 arranged along the second direction d2 share the same data line S; that is, in the same gate line G, both the retaining wall structures 30 in the same retaining wall structure row 34 and the retaining wall structures 30 in different retaining wall structure columns 35 are electrically connected; that is, in the same data line S, both the retaining wall structures 30 in the same retaining wall structure column 35 and the retaining wall structures 30 in different retaining wall structure rows 34 are electrically connected. In this way, the number of gate lines G and data lines S can be reduced, saving the space occupied by the gate lines G and data lines S.

[0081] Please continue to refer to Figure 1 As shown, combined with Figure 8 and Fig. 9 As shown, in an optional embodiment of the present application, the same retaining wall structure row 34 is electrically connected to the same gate line G, and the same retaining wall structure column 35 is electrically connected to the same gate line G.

[0082] For more details, please refer to Figure 1 As shown, combined with Figure 8 and Fig. 9As shown, in the present embodiment, the same barrier wall structure row 34 is electrically connected to the same gate line G, that is, the same gate line G can simultaneously control the thin film transistor 51 in the corresponding driving circuit 50 in the same barrier wall structure row 34 to be in the on state, that is, it can control the same barrier wall structure row 34 to be in the first state T1 or the second state T2 at the same time. It can also be understood that when the display contents of the display areas on both sides of the same barrier wall structure row 34 are the same, the same barrier wall structure row 34 is controlled to be in the first state T1 at the same time to enhance the brightness of the display area; when the display contents of the display areas on both sides of the same barrier wall structure row 34 are different, the same barrier wall structure row 34 is controlled to be in the second state T2 to improve the light crosstalk problem.

[0083] Furthermore, the setting form of the same barrier wall structure column 35 is similar to the setting form of the barrier wall structure row 34. The same barrier wall structure column 35 is electrically connected to the same gate line G, that is, the same gate line G can simultaneously control the thin film transistor 51 in the corresponding driving circuit 50 in the same barrier wall structure column 35 to be in the on state, that is, it can control the same barrier wall structure column 35 to be in the first state T1 or the second state T2 at the same time. It can also be understood that when the display contents of the display areas on both sides of the same barrier wall structure column 35 are the same, the same barrier wall structure column 35 is controlled to be in the first state T1 at the same time to enhance the brightness of the display area; when the display contents of the display areas on both sides of the same barrier wall structure column 35 are different, the same barrier wall structure column 35 is controlled to be in the second state T2 to improve the light crosstalk problem.

[0084] Fig.10 FIG. 1 is another schematic diagram of the structure of a display panel provided in an embodiment of the present application. Fig.11 Another structural schematic diagram of the display panel provided in an embodiment of the present application is shown. In an optional embodiment of the present application, the retaining wall structure 30 is light-transmissive as a whole when the retaining wall structure 30 is in a first state T1; and the retaining wall structure 30 is light-impermeable as a whole when the retaining wall structure 30 is in a second state T2.

[0085] It should be noted that Fig.10 Shown and Fig.11 The illustrated embodiments schematically illustrate the display panel 100 in two states, namely, light-transmitting and light-impermeable, and do not represent the actual size of each film layer in the display panel 100 .

[0086] For more details, please refer to Fig.10 and Fig.11As shown, in this embodiment, when the retaining wall structure 30 is in the first state T1, the retaining wall structure 30 is light-transmissive as a whole, and the light emitted by the light-emitting unit 20 can pass through the retaining wall structure 30 to reach the side of the light-emitting surface C of the display panel, thereby enhancing the brightness of the display area corresponding to the retaining wall structure 30 and improving the uniformity problem of the display panel 100; when the retaining wall structure 30 is in the second state T2, the retaining wall structure 30 is not light-transmissive as a whole, and can block the mixing of light between the adjacent first display area 41 and the second display area 42, thereby improving the light crosstalk problem.

[0087] In an optional embodiment of the present application, when the retaining wall structure 30 is in a first state T1, the side of the retaining wall structure 30 away from the base substrate 10 is translucent, and when the retaining wall structure is in a second state T2, the side of the retaining wall structure 30 away from the base substrate 10 is opaque. It can also be understood that by controlling whether the side of the retaining wall structure 30 away from the base substrate 10 is translucent, on the one hand, the uniformity problem of the display panel 100 corresponding to the retaining wall structure 30 is improved; on the other hand, the light crosstalk problem is improved; that is, when the side of the retaining wall structure 30 away from the base substrate 10 is translucent or opaque, the side of the retaining wall structure 30 close to the base substrate 10 is always opaque; in this way, while simplifying the control method, the uniformity problem of the display panel 100 can still be effectively improved.

[0088] Please continue to refer to Fig.10 and Fig.11 As shown, in an optional embodiment of the present application, the retaining wall structure 30 includes a third electrode 36 and a fourth electrode 37, and a liquid crystal 38 located between the third electrode 36 and the fourth electrode 37, and an electric field is formed between the third electrode 36 and the fourth electrode 37 to control the degree of light transmittance of the liquid crystal 38.

[0089] For more details, please refer to Fig.10 and Fig.11 As shown, in this embodiment, the retaining wall structure 30 includes a third electrode 36 and a fourth electrode 37, and a liquid crystal 38 located between the third electrode 36 and the fourth electrode 37; wherein, when the third electrode 36 and the fourth electrode 37 are powered on, an electric field can be generated between the third electrode 36 and the fourth electrode 37, and under the action of the electric field, the liquid crystal 38 is deflected to achieve different degrees of light transmittance of the retaining wall structure 30; in this way, the retaining wall structure 30 can achieve different functions in different states.

[0090] It should also be noted that the liquid crystal 38 in this embodiment is polymer dispersed liquid crystal 38, also known as PDLC (polymer dispersed liquid crystal), which is liquid crystal 38 dispersed in an organic solid polymer matrix in the form of micron-sized droplets. Since the optical axis of the droplets composed of liquid crystal 38 molecules is in a free orientation, its refractive index does not match the refractive index of the matrix. When light passes through the matrix, it is strongly scattered by the droplets and presents an opaque milky white state or a semi-transparent state. Applying an electric field can adjust the optical axis orientation of the liquid crystal 38 droplets. When the refractive indexes of the two match, a transparent state is presented. When the electric field is removed, the liquid crystal 38 droplets return to the initial scattered light state, thereby performing display.

[0091] Based on the same inventive concept, Fig.12 FIG. 1 is a schematic diagram of a structure of a display device provided in an embodiment of the present application. Please refer to FIG. Fig.12 As shown, the present application further provides a display device 200, which includes a display panel 100. The display panel 100 is the display panel 100 provided by any of the above embodiments of the present application, and the repeated parts are not repeated here.

[0092] It should be noted that the embodiment of the display device 200 provided in the embodiment of the present application can refer to the embodiment of the display panel 100 described above. The display device 200 of the present application takes a Mini-LED or Micro-LED display device 200 as an example, and the repeated parts are not repeated. The display device 200 provided in the present application can be: a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or any other product or component with real functions.

[0093] Based on the same inventive concept, Fig.13 FIG. 1 is a flow chart of a method for driving a display panel provided in an embodiment of the present application. Please refer to FIG. Fig.13 As shown, the present application further provides a driving method of a display panel 100, and the driving method is used for the display panel 100 provided by any of the above embodiments of the present application, wherein the display panel 100 includes:

[0094] Base substrate 10;

[0095] The light emitting units 20 are arranged in an array on the base substrate 10;

[0096] The retaining wall structures 30 are arranged in an array on the base substrate 10, and the retaining wall structures 30 are located between adjacent light-emitting units 20; the retaining wall structures 30 include a first state T1 and a second state T2;

[0097] Adjacent first display area 41 and second display area 42;

[0098] The drive methods include:

[0099] S101, lighting up the light-emitting unit 20, and determining whether the display contents of the first display area 41 and the second display area 42 are the same;

[0100] S102, if they are the same, controlling at least a portion of the retaining wall structure 30 to be light-transmissive or light-reflective;

[0101] S103. If different, control at least a portion of the retaining wall structure 30 to be opaque.

[0102] Specifically, in this embodiment, the display panel 100 includes a base substrate 10, and light-emitting units 20 and a retaining wall structure 30 located on the base substrate 10. The light-emitting units 20 are arranged in an array on the base substrate 10, and the retaining wall structure 30 is also arranged in an array on the base substrate 10, and the retaining wall structure 30 is located between adjacent light-emitting units 20. The retaining wall structure 30 includes a first state T1 and a second state T2; the display panel 100 also includes adjacent first display areas 41 and second display areas 42.

[0103] For further information, please refer to Fig.13 As shown, the driving method of the display panel 100 in this embodiment includes:

[0104] S101, lighting up the light-emitting unit 20 in the display panel 100, and determining whether the display contents of the first display area 41 and the second display area 42 are the same;

[0105] S102, if the display contents of the first display area 41 and the second display area 42 are the same, the side of the retaining wall structure 30 away from the base substrate 10 is controlled to be in a light-transmitting state, or the side of the retaining wall structure 30 away from the base substrate 10 is controlled to be in a light-reflecting state, so that the light emitted by the light-emitting unit 20 can be reflected, and the light directed to the side of the retaining wall structure 30 away from the base substrate can be reflected to the light-emitting surface of the display panel, so as to enhance the brightness of the display area corresponding to the retaining wall structure 30 and improve the brightness uniformity of the display panel 100;

[0106] S103 , if the display contents of the first display area 41 and the second display area 42 are different, control the side of the retaining wall structure 30 away from the base substrate 10 to be in a light absorbing state, that is, a light-proof state, to improve the light crosstalk problem between the first display area 41 and the second display area 42 .

[0107] Fig.14 FIG. 1 is another flow chart of the driving method of the display panel provided in the embodiment of the present application. Please refer to FIG. Fig.14 As shown, combined with Figure 3 and Figure 4As shown, in an optional embodiment of the present application, the retaining wall structure 30 includes a microparticle layer 31, and a first electrode 32 and a second electrode 33 located on the same side or different sides of the microparticle layer 31, and the microparticle layer 31 includes a first microparticle L1 and a second microparticle L2;

[0108] Gate line G and data line S;

[0109] A driving circuit 50, the driving circuit 50 is electrically connected to the gate line G and the data line S respectively, and the driving circuit 50 is also electrically connected to the first electrode 32 or the second electrode 33;

[0110] The drive methods include:

[0111] S201, lighting up the light-emitting unit 20, and determining whether the display contents of the first display area 41 and the second display area 42 are the same;

[0112] S202, if they are the same, input a first voltage to the data line S corresponding to the retaining wall structure 30 between the first display area 41 and the second display area 42, so that the first particles L1 gather on the side of the retaining wall structure 30 away from the base substrate 10;

[0113] S203 , if different, input a second voltage to the data line S corresponding to the retaining wall structure 30 between the first display area 41 and the second display area 42 , so that the second particles L2 gather on the side of the retaining wall structure 30 away from the base substrate 10 .

[0114] Specifically, in this embodiment, the retaining wall structure 30 includes a microparticle layer 31, and a first electrode 32 and a second electrode 33 located on the same side or different side of the microparticle layer 31, wherein the microparticle layer 31 includes a first microparticle L1 and a second microparticle L2, and the orthographic projection of the first electrode 32 on the base substrate 10 at least partially overlaps with the orthographic projection of the second electrode 33 on the base substrate 10. When the first electrode 32 and the second electrode 33 are energized, an electric field is generated between the first electrode 32 and the second electrode 33, and under the action of the electric field, the first microparticle L1 and the second microparticle L2 in the microparticle layer 31 are driven to move; optionally, in this embodiment, a gate line G and a data line S, as well as a driving circuit 50 are also provided, and the driving circuit 50 is electrically connected to the gate line G and the data line S, respectively, and the driving circuit 50 is also electrically connected to the first electrode 32 or the second electrode 33.

[0115] For further information, please refer to Fig.14 As shown, combined with Figure 3 and Figure 4 As shown, the display panel 100 driving method in this embodiment includes:

[0116] S201, light up the light-emitting units 20 in the display panel 100, including the light-emitting units 20 located in the first display area 41 and the light-emitting units 20 located in the second display area 42, and determine whether the display contents of the first display area 41 and the second display area 42 are the same, so as to drive the retaining wall structure 30 to be in different states.

[0117] S202. If the display contents of the first display area 41 and the second display area 42 are the same, the thin film transistor 51 in the driving circuit 50 corresponding to the retaining wall structure 30 between the first display area 41 and the second display area 42 is controlled to be in an on state, and a first voltage is input to the data line S electrically connected to the first electrode 32 of the retaining wall structure 30, and a voltage signal is input to the first signal line K electrically connected to the second electrode 33 of the retaining wall structure 30, so that an electric field is generated between the first electrode 32 and the second electrode 33, driving the first particles L1 to gather to the side of the retaining wall structure 30 away from the base substrate 10, so that the side of the retaining wall structure 30 away from the base substrate 10 has a light reflecting function, which can reflect the light emitted by the light-emitting unit 20 and emit it to the side of the light-emitting surface C of the display panel, thereby improving the brightness uniformity problem of the display panel 100.

[0118] S203. If the display contents of the first display area 41 and the second display area 42 are different, the thin film transistor 51 in the driving circuit 50 corresponding to the retaining wall structure 30 between the first display area 41 and the second display area 42 is controlled to be in an on state, and a second voltage is input to the data line S electrically connected to the first electrode 32 of the retaining wall structure 30, and a voltage signal is input to the first signal line K electrically connected to the second electrode 33 of the retaining wall structure 30, so that an electric field is generated between the first electrode 32 and the second electrode 33, driving the second particles L2 to gather on the side of the retaining wall structure 30 away from the base substrate 10, so that the side of the retaining wall structure 30 away from the base substrate 10 has a light absorbing effect, which can block the light crosstalk problem between the first display area 41 and the second display area 42.

[0119] In an optional embodiment of the present application, the first voltage and the second voltage are different.

[0120] Specifically, in this embodiment, the first voltage and the second voltage are different voltage signals. Under the action of the first voltage, the first electrode 32 causes the first particle L1 to move to the side of the retaining wall structure 30 away from the base substrate 10; under the action of the second voltage, the first electrode 32 causes the second particle L2 to move to the side of the retaining wall structure 30 away from the base substrate 10; in this way, different functions of the retaining wall structure 30 are realized in different states.

[0121] It can be seen from the above embodiments that the present application has the following beneficial effects:

[0122] The display panel, display device and driving method provided in the present application are provided with a first display area and a second display area adjacent to each other, and light-emitting units are provided in the first display area and the second display area; the orthographic projection of the first display area on a substrate perpendicular to the substrate and the orthographic projection of the second display area on a substrate perpendicular to the substrate are respectively located on both sides of the retaining wall structure; when the display contents of the first display area and the second display area are the same, the retaining wall structure switches to a first state, that is, the side of the retaining wall structure away from the substrate is light-transmissive and does not affect the penetration of light, or the side of the retaining wall structure away from the substrate has the function of reflecting light, which can reflect the light incident on the retaining wall structure The light away from the side of the base substrate is reflected to the light-emitting surface of the display panel. It can also be understood that the side of the baffle structure away from the base substrate can reflect the light emitted by the light-emitting unit to enhance the brightness of the display panel corresponding to the baffle structure, that is, it can enhance the brightness between adjacent light-emitting units and improve the display uniformity of the display panel. When the display content of the first display area is different from that of the second display area, the baffle structure switches to the second state, that is, the side of the baffle structure away from the base substrate is opaque, and the side of the baffle structure away from the base substrate has a light absorption function. The setting of the baffle structure can also block the mixing of light and improve the problem of light crosstalk.

[0123] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A display panel, characterized in that: include: substrate substrate; Light-emitting units are arranged in an array on the substrate; A retaining wall structure is arranged in an array on the substrate, and the retaining wall structure is located between adjacent light-emitting units; the retaining wall structure includes a first state and a second state; The adjacent first display area and the second display area, the first display area and the second display area are both provided with the light-emitting unit; along the direction perpendicular to the base substrate, the first display area and the second display area are respectively located on both sides of the retaining wall structure; when the display contents of the first display area and the second display area are the same, the retaining wall structure switches to the first state, and the portion of the retaining wall structure away from the base substrate is light-transmissive, or reflects the light emitted by the light-emitting unit in the direction away from the base substrate; when the display contents of the first display area and the second display area are different, the retaining wall structure switches to the second state, and the portion of the retaining wall structure away from the base substrate absorbs light.

2. The display panel according to claim 1, characterized in that: When the retaining wall structure is in the first state, a side of the retaining wall structure away from the substrate reflects light; when the retaining wall structure is in the second state, a side of the retaining wall structure away from the substrate absorbs light.

3. The display panel according to claim 1, characterized in that: The retaining wall structure includes a microparticle layer, the microparticle layer includes a plurality of microparticles, namely, first microparticles and second microparticles, and the microparticles are movable; In the first state, the first particles gather on a side of the retaining wall structure away from the substrate; in the second state, the second particles gather on a side of the retaining wall structure away from the substrate.

4. The display panel according to claim 3, characterized in that: The first microparticles reflect light, and the second microparticles absorb light.

5. The display panel according to claim 3, characterized in that: The first microparticles are titanium dioxide particles, and the second microparticles are black dye particles.

6. The display panel according to claim 3, characterized in that: The retaining wall structure further comprises a first electrode and a second electrode located on the same side or on different sides of the microparticle layer; along a direction perpendicular to the substrate, the first electrode and the second electrode at least partially overlap; An electric field is formed between the first electrode and the second electrode, and the microparticles move under the action of the electric field.

7. The display panel according to claim 6, characterized in that: Also includes: A driving circuit is provided corresponding to each retaining wall structure, and the first electrode or the second electrode is electrically connected to the driving circuit.

8. The display panel according to claim 7, characterized in that: Also includes: Gate lines, at least a portion of which extends along the first direction and is arranged along the second direction; data lines, at least a portion of which extends along the second direction and is arranged along the first direction; The first direction and the second direction intersect; The driving circuit is electrically connected to the gate line and the data line respectively.

9. The display panel according to claim 8, characterized in that: The driving circuit comprises a thin film transistor, a gate of the thin film transistor is electrically connected to the gate line, and a source and a drain of the thin film transistor are electrically connected to the data line and the first electrode respectively; The device further includes a first signal line electrically connected to the second electrode.

10. The display panel according to claim 8, characterized in that: Also includes: A retaining wall structure row extending along the first direction and arranged along the second direction, wherein the retaining wall structure row includes a plurality of the retaining wall structures; A retaining wall structure row extending along the second direction and arranged along the first direction, wherein the retaining wall structure row includes a plurality of the retaining wall structures; In the same gate line, at least part of the retaining wall structures in the same retaining wall structure row are electrically connected, and at least part of the retaining wall structures in different retaining wall structure columns are electrically connected; in the same data line, at least part of the retaining wall structures in the same retaining wall structure column are electrically connected, and at least part of the retaining wall structures in different retaining wall structure rows are electrically connected.

11. The display panel according to claim 10, characterized in that: The same retaining wall structure row is electrically connected to the same gate line, and the same retaining wall structure column is electrically connected to the same gate line.

12. The display panel according to claim 1, characterized in that: When the retaining wall structure is in the first state, the retaining wall structure is entirely light-transmissive; when the retaining wall structure is in the second state, the retaining wall structure is entirely light-impermeable.

13. The display panel according to claim 1, characterized in that: The retaining wall structure includes a third electrode and a fourth electrode, and a liquid crystal located between the third electrode and the fourth electrode. An electric field is formed between the third electrode and the fourth electrode to control the light transmittance of the liquid crystal.

14. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-12.

15. A method for driving a display panel, characterized in that: The display panel comprises: substrate substrate; Light-emitting units are arranged in an array on the substrate; A retaining wall structure is arranged in an array on the substrate, and the retaining wall structure is located between adjacent light-emitting units; the retaining wall structure includes a first state and a second state; The adjacent first display area and the second display area; The driving method comprises: Lighting up the light-emitting unit to determine whether the display contents of the first display area and the second display area are the same; If they are the same, controlling at least a portion of the retaining wall structure to be light-transmissive or light-reflective; If different, at least a portion of the retaining wall structure is controlled to be opaque.

16. The method for driving a display panel according to claim 15, characterized in that: The retaining wall structure includes a microparticle layer, and a first electrode and a second electrode located on the same side or different sides of the microparticle layer, and the microparticle layer includes first microparticles and second microparticles; Gate lines and data lines; A driving circuit, wherein the driving circuit is electrically connected to the gate line and the data line respectively, and the driving circuit is also electrically connected to the first electrode or the second electrode; The driving method comprises: Lighting up the light-emitting unit to determine whether the display contents of the first display area and the second display area are the same; If they are the same, a first voltage is input to the data line corresponding to the retaining wall structure between the first display area and the second display area, so that the first particles gather to a side of the retaining wall structure away from the base substrate; If they are different, a second voltage is input to the data line corresponding to the retaining wall structure between the first display area and the second display area, and the second particles are gathered to a side of the retaining wall structure away from the base substrate.

17. The method for driving a display panel according to claim 16, wherein: The first voltage and the second voltage are different.

Images