Display panel and display device

Abstract

This application provides a display panel and a display device. The display panel further includes an insulating layer and a first ink. The insulating layer has multiple first display channels and multiple first placement channels. The first display channels are connected to the first placement channels, and the area of ​​the first display channel projected onto the light-emitting direction of the display panel is larger than the area of ​​the first placement channel projected onto the light-emitting direction of the display panel. The first ink is disposed within the first display channels, and at least a portion of the first ink flows from the first display channels to the first placement channels. The first ink is used to absorb ambient light. Compared to the prior art, when the sub-pixel area is in a bright state, the ink still occupies a large proportion of the opening area of ​​the sub-pixel when it is clustered together. In this application, when the sub-pixel area is in a bright state, the first ink flows into the first placement channels, and the first ink hardly occupies the opening area of ​​the sub-pixel area, thus increasing the aperture ratio of the sub-pixel area.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and a display device having the display panel. Background Technology

[0002] As a reflective display technology, electrowetting display panels only require ambient light to achieve their display purpose. Electrowetting display panels offer advantages such as high brightness, high contrast, and wide viewing angles.

[0003] Each subpixel of an electrowetting display panel contains ink, allowing different grayscale levels to be displayed by adjusting the ink's spreading area. In existing technologies, even when the ink spreading area is at its minimum (i.e., when the ink is clustered together), the ink still occupies a large proportion of the subpixel's aperture area. This results in a low aperture ratio for the subpixel, thereby reducing the display panel's brightness.

[0004] Therefore, how to solve the problem of low aperture ratio of electrowetting display panels caused by ink occupying a large proportion of the aperture area of ​​sub-pixels in the prior art is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a display panel and a display device, which aims to solve the technical problem of low aperture ratio of electrowetting display panels caused by ink occupying a large proportion of the aperture area of ​​sub-pixels in the prior art.

[0006] In a first aspect, embodiments of this application provide a display panel comprising an array of multiple sub-pixel regions. The display panel further comprises an insulating layer and a first ink. The insulating layer has multiple first display channels and multiple first placement channels, with one first display channel and one first placement channel located within one of the sub-pixel regions. Within one sub-pixel, the first display channel and the first placement channel are connected, and the area of ​​the orthographic projection of the first display channel in the light-emitting direction of the display panel is larger than the area of ​​the orthographic projection of the first placement channel in the light-emitting direction of the display panel. The first ink is disposed within the first display channels, and at least a portion of the first ink flows from the first display channels to the first placement channels. The first ink is used to absorb ambient light.

[0007] In summary, when the sub-pixel area is in a bright state, i.e., when the spreading area of ​​the first ink in the first display channel is at its minimum, the first ink is contained within the first placement channel, and the first ink occupies a very small proportion of the opening area of ​​the sub-pixel area. Compared to the prior art, where the ink still occupies a large proportion of the opening area of ​​the sub-pixel when the sub-pixel area is in a bright state, in this application, when the sub-pixel area is in a bright state, the first ink flows into the first placement channel, and the first ink hardly occupies the opening area of ​​the sub-pixel area, thus increasing the aperture ratio of the sub-pixel area.

[0008] In an exemplary embodiment, the insulating layer further comprises a plurality of first cutout groups, one of which is located within one of the sub-pixel areas, and the first cutout groups are located on opposite sides of the first placement channel. The display panel further comprises a plurality of first driving electrode groups, one of which is disposed within the first cutout group. The first driving electrode group is used to drive the first ink to flow from the first display channel to the first placement channel or from the first placement channel to the first display channel.

[0009] In an exemplary embodiment, the insulating layer further comprises a plurality of first driving channels, each first driving channel being located within one of the sub-pixels, and the side of the first display channel facing away from the first placement channel communicating with the first driving channel. The display panel further comprises a first driving liquid disposed within the first driving channel, and the first driving liquid contacting the first ink. The first driving liquid is used to selectively drive the first ink to flow from the first display channel to the first placement channel, or to drive the first ink to flow from the first placement channel to the first display channel.

[0010] In an exemplary embodiment, the insulating layer further comprises a plurality of second cutout groups, one of which is located within one of the sub-pixel areas, and the second cutout groups are formed on opposite sides of the first driving channel. The display panel further comprises a plurality of second driving electrode groups, one of which is disposed within one of the second cutout groups. The second driving electrode groups are used to selectively drive the first driving liquid to flow from the first driving channel to the first display channel, or to drive the first driving liquid to flow from the first display channel to the first driving channel.

[0011] Secondly, embodiments of this application also provide a display panel, wherein the display panel array comprises a plurality of sub-pixel areas. The display panel further includes an insulating layer, a first ink, a second ink, and a third ink. The insulating layer has a plurality of first display channels, a plurality of second display channels, a plurality of third display channels, a plurality of first placement channels, a plurality of second placement channels, and a plurality of third placement channels. One first display channel, one second display channel, one third display channel, one first placement channel, one second placement channel, and one third placement channel are located within one of the sub-pixel areas.

[0012] Within a single sub-pixel, the first display channel, the second display channel, and the third display channel are stacked. The first display channel is connected to the first placement channel, and the area of ​​the orthographic projection of the first display channel in the light-emitting direction of the display panel is larger than the area of ​​the orthographic projection of the first placement channel in the light-emitting direction of the display panel. The second display channel is connected to the second placement channel, and the area of ​​the orthographic projection of the second display channel in the light-emitting direction of the display panel is larger than the area of ​​the orthographic projection of the third placement channel in the light-emitting direction of the display panel. The third display channel is connected to the third placement channel, and the area of ​​the orthographic projection of the third display channel in the light-emitting direction of the display panel is larger than the area of ​​the orthographic projection of the third placement channel in the light-emitting direction of the display panel.

[0013] The first ink is disposed in the first display channel, the second ink is disposed in the second display channel, and the third ink is disposed in the third display channel. At least a portion of the first ink flows from the first display channel to the first placement channel, at least a portion of the second ink flows from the second display channel to the second placement channel, and at least a portion of the third ink flows from the third display channel to the third display channel. The first ink is used to convert received ambient light into a first color light and reflect the first color light, the second ink is used to convert received ambient light into a second color light and reflect the second color light, and the third ink is used to convert received ambient light into a third color light and reflect the third color light.

[0014] In summary, when the first ink has the smallest spreading area in the first display channel, it is contained within the first placement channel, occupying a very small proportion of the opening area of ​​the sub-pixel region. When the second ink has the smallest spreading area in the second display channel, it is contained within the second placement channel, occupying a very small proportion of the opening area of ​​the sub-pixel region. When the third ink has the smallest spreading area in the third display channel, it is contained within the third placement channel, occupying a very small proportion of the opening area of ​​the sub-pixel region. Compared to the prior art, where the ink occupies a larger proportion of the opening area of ​​the sub-pixel region when the inks are clustered together, in the display panel of this application, the first ink is clustered within the first placement channel, the second ink within the second placement channel, and the third ink within the third placement channel. Therefore, the first, second, and third inks hardly occupy any opening area of ​​the sub-pixel region, thereby increasing the aperture ratio of the sub-pixel region.

[0015] In an exemplary embodiment, the insulating layer further comprises a plurality of first cutout groups, one of which is located within one of the sub-pixel areas, and the first cutout groups are at least located between the first placement channel and the second placement channel, and between the second placement channel and the third placement channel. The display panel further comprises a plurality of first driving electrode groups, one of which is disposed within the first cutout group, and the first driving electrode group is used to drive the flow of the first ink, the flow of the second ink, and the flow of the third ink.

[0016] In an exemplary embodiment, the insulating layer further comprises a plurality of first driving channels, a plurality of second driving channels, and a plurality of third driving channels, wherein one first driving channel, one second driving channel, and one third driving channel are located within one sub-pixel. Furthermore, one first display channel communicates with the first driving channel on the side opposite to the first placement channel, one second display channel communicates with the second driving channel on the side opposite to the second placement channel, and one third display channel communicates with the third driving channel on the side opposite to the third placement channel.

[0017] The display panel further includes a first driving liquid, a second driving liquid, and a third driving liquid. The first driving liquid is disposed in the first driving channel, the second driving liquid is disposed in the second driving channel, and the third driving liquid is disposed in the third driving channel.

[0018] In this configuration, the first driving liquid contacts the first ink and drives the flow of the first ink. The second driving liquid contacts the second ink and drives the flow of the second ink. The third driving liquid contacts the third ink and drives the flow of the third ink.

[0019] In an exemplary embodiment, the insulating layer is further provided with a plurality of second cutout groups, one of the second cutout groups being located within one of the sub-pixel regions, and the second cutout groups being provided at least between the first driving channel and the second driving channel and between the second driving channel and the third driving channel.

[0020] The display panel also includes a plurality of second driving electrode groups, one of which is disposed within a second cutout group. The second driving electrode group is used to drive the flow of the first driving liquid, the flow of the second driving liquid, and the flow of the third driving liquid.

[0021] In an exemplary embodiment, the volume ratio of the first ink, the volume of the first placement channel, and the volume of the first driving liquid is 1:1:1; the volume ratio of the second ink, the volume of the second placement channel, and the volume of the second driving liquid is 1:1:1; and the volume ratio of the third ink, the volume of the third placement channel, and the volume of the third driving liquid is 1:1:1.

[0022] Thirdly, embodiments of this application also provide a display device, the display device including a power board and the aforementioned display panel, the power board being electrically connected to the display panel, and the power board being used to supply power to the display panel. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the layer structure of the display device disclosed in the first embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the first layer structure of the display panel disclosed in the second embodiment of this application;

[0026] Figure 3 for Figure 2 The diagram shows the layer structure of the sub-pixel area of ​​the display panel.

[0027] Figure 4 This is a schematic diagram of the second layer structure of the display panel disclosed in the second embodiment of this application;

[0028] Figure 5 for Figure 4 The diagram shows the layer structure of the sub-pixel area of ​​the display panel.

[0029] Figure 6 for Figure 5 The diagram shows a top view of the sub-pixel region.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Display device; 10-Housing; 30-Display panel; 30a-Subpixel area; 31-First substrate; 32-Display layer; 33-Second substrate; 321-Insulating layer; 322-First ink; 323-Second ink; 324-Third ink; 325-First driving liquid; 326-Second driving liquid; 327-Third driving liquid; 331-First driving electrode group; 332-Second driving electrode group; a1-First display channel; a2-Second display channel; a3-Third display channel; b1-First placement channel; b2-Second placement channel; b3-Third placement channel; c1-First driving channel; c2-Second driving channel; c3-Third driving channel; d1-First cutout group; d2-Second cutout group; d11-First receiving groove; d12-Second receiving groove; d13-Third receiving groove;

[0032] d14 - First receiving channel; d21 - Fourth receiving slot; d22 - Fifth receiving slot; d23 - Sixth receiving slot;

[0033] d24 - Second accommodating channel; e1 - First driving electrode; e2 - Second driving electrode; e3 - Third driving electrode;

[0034] e4 - Fourth driving electrode; e5 - Fifth driving electrode; e6 - Sixth driving electrode; f1 - First common electrode; f2 - Second common electrode. Detailed Implementation

[0035] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0036] The following descriptions of the embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments in which this application can be implemented. The component designations used herein, such as "first," "second," etc., are merely for distinguishing the described objects and do not have any sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages). Directional terms used in this application, such as "up," "down," "front," "rear," "left," "right," "inner," "outer," "side," etc., are merely for reference to the accompanying drawings. Therefore, the use of directional terms is for better and clearer explanation and understanding of this application, and does not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising," "may include," "include," or "may include" used in this application indicate the presence of the corresponding disclosed function, operation, element, etc., and do not limit one or more other functions, operations, elements, etc. Moreover, the terms "comprising" or "include" indicate the presence of the corresponding features, number, steps, operations, elements, components, or combinations thereof disclosed in the specification, but do not exclude the presence or addition of one or more other features, number, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusion. It is also important to understand that “at least one” as described in this article means one or more, such as one, two or three, while “multiple” means at least two, such as two or three, unless otherwise explicitly specified.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0039] Please see Figure 1 , Figure 1This is a schematic diagram of the layer structure of the display device disclosed in the first embodiment of this application. In this embodiment, the display device 1 may include a housing 10 and a display panel 30 disposed within the housing 10, with the light-emitting side of the display panel 30 exposed outside the housing 10. The housing 10 is used to fix the display panel 30, and the display panel 30 is used to display images. The display panel 30 is an electrowetting display panel, and the display panel 30 can display on one side or both sides.

[0040] Understandably, the display device 1 can be used in electronic devices including, but not limited to, televisions, tablets, laptops, desktop computers, mobile phones, in-vehicle displays, smartwatches, smart bracelets, smart glasses, road signs, e-readers, and other electronic devices. According to the embodiments of this application, the specific type of display device 1 is not particularly limited, and those skilled in the art can design it accordingly based on the specific usage requirements of the display device 1; further details will not be elaborated here.

[0041] In an exemplary embodiment, the display device 1 may further include other necessary components and parts such as a driver board, a power board, a high-voltage board, and a button control board. Those skilled in the art can supplement these components according to the specific type and actual function of the display device 1, and will not be elaborated further here. The power board is electrically connected to the display panel and is used to supply power to the display panel.

[0042] In some embodiments, the display device 1 may further include a processor and a memory. The processor is electrically connected to the display panel 30 and is used to control the display panel 30 to display content. The memory is electrically connected to the processor and is used to store program code required for the processor to run, such as controlling the display content of the display panel 30.

[0043] In an exemplary embodiment, the memory may include volatile memory, such as random access memory (RAM); the memory may also include non-volatile memory (NVM), such as read-only memory (ROM), flash memory (FM), hard disk drive (HDD), or solid-state drive (SSD). The memory may also include combinations of the above types of memory.

[0044] In an exemplary embodiment, the processor includes one or more general-purpose processors, wherein the general-purpose processor can be any type of device capable of processing electronic instructions, including a central processing unit (CPU), microprocessor, microcontroller, main processor, and controller, etc. The processor is used to execute various types of digitally stored instructions, such as software or firmware programs stored in memory, which enable the computing device to provide a wide range of services.

[0045] Please see Figure 2 , Figure 2 This is a schematic diagram of the first layer structure of the display panel disclosed in the second embodiment of this application. For ease of description, the following definitions are used. Figure 2 The length direction of the display panel 30 is the X-axis direction, the width direction is the Y-axis direction, and the thickness direction is the Z-axis direction. The X-axis, Y-axis, and Z-axis directions are all perpendicular to each other. The Z-axis direction is also the light emission direction of the display panel 30.

[0046] In this embodiment, the display panel 30 includes a plurality of sub-pixel regions 30a, which are arranged in an array. The display panel 30 also includes a first substrate 31, a display layer 32, and a second substrate 33. The first substrate 31, the display layer 32, and the second substrate 33 are stacked along the Z-axis direction, that is, the first substrate 31, the display layer 32, and the second substrate 33 are stacked along the thickness direction of the display panel 30. Each sub-pixel region 30a contains a portion of the first substrate 31, a portion of the display layer 32, and a portion of the second substrate 33. The display layer 32 is used to display an image, and the first substrate 31 and the second substrate 33 are used to protect the display layer 32.

[0047] Please see Figure 3 , Figure 3 for Figure 2 The diagram shows a layer structure at the sub-pixel area of ​​the display panel. The display layer 32 is located between the first substrate 31 and the second substrate 33, and includes an insulating layer 321, a plurality of first inks 322, a plurality of first driving liquids 325, a plurality of first driving electrode groups 331, and a plurality of second driving electrode groups 332. The insulating layer 321 is disposed between the first substrate 31 and the second substrate 33, and its opposite sides are respectively connected to the first substrate 31 and the second substrate 33.

[0048] In this sub-pixel region 30a, a first ink 322, a first driving liquid 325, a first driving electrode group 331, and a second driving electrode group 332 are located. That is, a first ink 322, a first driving liquid 325, a first driving electrode group 331, and a second driving electrode group 332 are disposed in a sub-pixel region 30a.

[0049] In an exemplary embodiment, the insulating layer 321 has a plurality of first display channels a1, a plurality of first placement channels b1, a plurality of first driving channels c1, a plurality of first cutout groups d1 and a plurality of second cutout groups d2.

[0050] Among them, a first display channel a1, a first placement channel b1, a first driving channel c1, a first cutout group d1 and a second cutout group d2 are located in a sub-pixel area 30a. That is, a first display channel a1, a first placement channel b1, a first driving channel c1, a first cutout group d1 and a second cutout group d2 are opened in a sub-pixel area 30a.

[0051] For ease of description and understanding of this application, Figure 3 The example shown is a sub-pixel region 30a. Specifically, the overall shape of the first display channel a1 is a cuboid. The size of the first display channel a1 in the X-axis direction is larger than its size in the Z-axis direction, and the size of the first display channel a1 in the Y-axis direction is larger than its size in the Z-axis direction. The area of ​​the orthographic projection of the first display channel a1 in the Z-axis direction is larger than its area in the X-axis direction, and the area of ​​the orthographic projection of the first display channel a1 in the Z-axis direction is larger than its area in the Y-axis direction.

[0052] The first placement channel b1 has a rectangular parallelepiped shape. The dimension of the first placement channel b1 in the Z-axis direction is larger than its dimension in the X-axis direction. The dimension of the first display channel a1 in the Z-axis direction is larger than its dimension in the Y-axis direction. The area of ​​the orthographic projection of the first placement channel b1 in the X-axis direction is larger than its area in the Z-axis direction, and the area of ​​the orthographic projection of the first placement channel b1 in the X-axis direction is larger than its area in the Y-axis direction.

[0053] The first driving channel c1 has a rectangular parallelepiped shape. The dimension of the first driving channel c1 in the Z-axis direction is larger than its dimension in the X-axis direction, and the dimension of the first driving channel c1 in the Z-axis direction is larger than its dimension in the Y-axis direction. The area of ​​the orthographic projection of the first driving channel c1 in the X-axis direction is larger than its area of ​​the orthographic projection in the Z-axis direction, and the area of ​​the orthographic projection of the first driving channel c1 in the X-axis direction is larger than its area of ​​the orthographic projection in the Y-axis direction.

[0054] In an exemplary embodiment, the area of ​​the orthographic projection of the first display channel a1 in the Z-axis direction is greater than the area of ​​the orthographic projection of the first placement channel b1 in the Z-axis direction, the area of ​​the orthographic projection of the first display channel a1 in the Z-axis direction is greater than the area of ​​the orthographic projection of the first driving channel c1 in the Z-axis direction, the orthographic projection of the first placement channel b1 in the Z-axis direction is at least partially located within the orthographic projection of the first display channel a1 in the Z-axis direction, and the orthographic projection of the first driving channel c1 in the Z-axis direction is at least partially located within the orthographic projection of the first display channel a1 in the Z-axis direction.

[0055] In an exemplary embodiment, the first display channel a1 is perpendicular to the first placement channel b1 in the Z-axis direction, and the first display channel a1 is perpendicular to the first driving channel c1. The first placement channel b1 and the first driving channel c1 are parallel in the X-axis direction. The opposite sides of the first display channel a1 along the X-axis direction are respectively connected to the first placement channel b1 and the first driving channel c1. The end of the first placement channel b1 facing away from the first display channel a1 extends toward the first substrate 31, and the end of the first driving channel c1 facing away from the first display channel a1 extends toward the first substrate 31.

[0056] In an exemplary embodiment, the first ink 322 is disposed within the first display channel a1, and at least a portion of the first ink 322 is capable of flowing from the first display channel a1 to the first placement channel b1.

[0057] Ambient light can be emitted from the side of the second substrate 33 opposite to the first substrate 31 towards the first display channel a1; and / or, ambient light can also be emitted from the side of the first substrate 31 opposite to the second substrate 33 towards the first display channel a1. The first ink 322 is used to absorb ambient light.

[0058] It should be noted that when the first ink 322 covers the entire first display channel a1, the first placement channel b1 may have no first ink 322 or may have a small amount of first ink 322.

[0059] Understandably, the brightness of sub-pixel area 30a is minimum when the first ink 322 covers the entire first display channel a1, and maximum when the first ink 322 covers the entire first placement channel b1. The brightness of sub-pixel area 30a can be adjusted by adjusting the spreading area of ​​the first ink 322 in the first display channel a1. The first ink 322 can be black ink, and the display panel 30 can only display in black and white.

[0060] Therefore, when the first ink 322 has the smallest spreading area in the first display channel a1, the first ink 322 is contained within the first placement channel b1, at which point the first ink 322 occupies a very small proportion of the opening area of ​​the sub-pixel region 30a. Compared to the prior art, when the sub-pixel region 30a is in a bright state, even when the ink is gathered together, the ink still occupies a large proportion of the opening area of ​​the sub-pixel. In this application, when the sub-pixel region 30a is in a bright state, the first ink 322 flows into the first placement channel b1, and the first ink 322 hardly occupies the opening area of ​​the sub-pixel region 30a, thus improving the aperture ratio of the sub-pixel region 30a.

[0061] It should be noted that the dimensions of the first display channel a1 should satisfy the following: the capillary force between the wall of the first display channel a1 and the first ink 322 can offset the gravity of the first ink 322, that is, the first ink 322 can flow in the first display channel a1 without being affected by gravity; and the capillary force between the wall of the first display channel a1 and the first driving liquid 325 can offset the gravity of the first driving liquid 325, that is, the first driving liquid 325 can flow in the first display channel a1 without being affected by gravity.

[0062] In this embodiment, the first driving liquid 325 is disposed within the first driving channel c1, and at least a portion of the first driving liquid 325 can flow from the first driving channel c1 to the first display channel a1. The first driving liquid 325 can compress the first ink 322 to drive the first ink 322 from the first display channel a1 to the first placement channel b1. Since the first display channel a1 is connected to both the first placement channel b1 and the first driving channel c1, the first driving liquid 325 can create a negative pressure within the first display channel a1, making the pressure within the first placement channel b1 greater than the pressure within the first display channel a1, thereby driving the first ink 322 from the first placement channel b1 to the first display channel a1. That is, the first driving liquid 325 can selectively drive the first ink 322 from the first display channel a1 to the first placement channel b1, or drive the first ink 322 from the first placement channel b1 to the first display channel a1. The first driving liquid 325 is immiscible with the first ink 322, and the first driving liquid 325 is a transparent liquid.

[0063] Understandably, driven by an electric field, the first ink 322 can flow from the first display channel a1 to the first placement channel b1 and vice versa. Furthermore, the first driving liquid 325 can also drive the first ink 322 to flow from the first display channel a1 to the first placement channel b1 and vice versa. Therefore, by using a dual-drive method to drive the flow of the first ink 322, the flow speed of the first ink 322 is faster, meaning that the switching between bright and dark displays in the sub-pixel area 30a can be faster, which is beneficial for improving the refresh rate of the display panel 30.

[0064] In this embodiment of the application, the first hollow group d1 is opened on both sides of the first placement channel b1 along the X-axis direction, and the first driving electrode group 331 is disposed in the first hollow group d1. The first driving electrode group 331 is used to drive the first ink 322 to flow from the first display channel a1 to the first placement channel b1 and to drive the first ink 322 to flow from the first placement channel b1 to the first display channel a1.

[0065] The dimensions of the first placement channel b1 should satisfy the following: the capillary force between the wall of the first placement channel b1 and the first ink 322 can counteract the gravity acting on the first ink 322.

[0066] The dimensions of the first driving channel c1 should satisfy the following: the capillary force between the wall of the first driving channel c1 and the first driving liquid 325 can counteract the gravity acting on the first driving liquid 325.

[0067] Therefore, the first ink 322 will not move under the influence of gravity, and the first driving liquid 325 will not move under the influence of gravity, resulting in better display stability of the display panel 30.

[0068] Specifically, the first hollowed-out group d1 includes a first receiving groove d11 and a first receiving channel d14. The first receiving groove d11 and the first receiving channel d14 are disposed on opposite sides of the first placement channel b1 along the X-axis direction. For example, the first receiving channel d14 is disposed on the side of the first placement channel b1 facing the X-axis direction, and the first receiving groove d11 is disposed on the side of the first placement channel b1 facing the opposite direction of the X-axis. That is, the first receiving channel d14 is disposed on the side of the first placement channel b1 facing away from the first driving channel c1, and the first receiving groove d11 is disposed on the side of the first placement channel b1 facing the first driving channel c1. The first receiving groove d11 is connected to the first placement channel b1, and the first receiving channel d14 is spaced apart from the first placement channel b1. The X-axis direction is opposite to the X-axis direction.

[0069] The first driving electrode group 331 includes a first driving electrode e1 and a first common electrode f1. The first driving electrode e1 is disposed in the first receiving groove d11, and the first common electrode f1 is disposed in the first receiving channel d14. The first driving electrode e1 and the first common electrode f1 are used to form a first preset electric field. The first preset electric field is used to drive the first ink 322 to flow from the first display channel a1 to the first placement channel b1 and to flow from the first placement channel b1 to the first display channel a1. The principle by which the first preset electric field drives the flow of the first ink 322 is the electrowetting effect.

[0070] In this embodiment, the second hollow group d2 is formed on opposite sides of the first driving channel c1 along the X-axis direction. The second driving electrode group 332 is disposed within the second hollow group d2, and is used to drive the first driving liquid 325 from the first driving channel c1 to the first display channel a1 and to drive the first driving liquid 325 from the first display channel a1 to the first driving channel c1. That is, the second driving electrode group 332 is used to selectively drive the first driving liquid 325 from the first driving channel c1 to the first display channel a1, or to drive the first driving liquid 325 from the first display channel a1 to the first driving channel c1.

[0071] Specifically, the second hollowed-out group d2 includes a fourth receiving groove d21 and a second receiving channel d24. The fourth receiving groove d21 and the second receiving channel d24 are arranged on opposite sides of the first driving channel c1 along the X-axis direction. For example, the fourth receiving groove d21 is located on the side of the first driving channel c1 facing the X-axis direction, and the second receiving channel d24 is located on the side of the first driving channel c1 facing the opposite direction of the X-axis. That is, the fourth receiving groove d21 is located on the side of the first driving channel c1 facing the first placement channel b1, and the second receiving channel d24 is located on the side of the first driving channel c1 facing away from the first placement channel b1. The fourth receiving groove d21 is connected to the first driving channel c1, and the second receiving channel d24 is spaced apart from the first driving channel c1.

[0072] The second driving electrode group 332 includes a fourth driving electrode e4 and a second common electrode f2. The fourth driving electrode e4 is disposed within a fourth receiving groove d21, and the second common electrode f2 is disposed within a second receiving channel d24. The fourth driving electrode e4 and the second common electrode f2 are used to form a fourth preset electric field. The fourth preset electric field is used to drive the first driving liquid 325 to flow from the first driving channel c1 to the first display channel a1 and to flow from the first display channel a1 to the first driving channel c1. The principle by which the second preset electric field drives the flow of the first driving liquid 325 is based on the electrowetting effect.

[0073] Understandably, the first driving electrode group 331 and the second driving electrode group 332 are not arranged in the light emission direction of the display panel 30, which reduces the light loss of the display panel 30 and improves the brightness of the display panel 30.

[0074] It should be noted that the first ink 322 contacts the insulating layer 321 in the first display channel a1, and the first ink 322 contacts both the insulating layer 321 and the first driving electrode e1 in the first placement channel b1. The first driving liquid 325 contacts both the insulating layer 321 and the fourth driving electrode e4 in the first driving channel c1.

[0075] The insulating layer 321 and the first driving electrode e1 have good hydrophobic properties, which improves the flowability of the first ink 322 within the first display channel a1 and the first placement channel b1. The insulating layer 321 and the fourth driving electrode e4 have good hydrophobic properties, which improves the flowability of the first driving liquid 325 within the first driving channel c1 and the first display channel a1.

[0076] In an exemplary embodiment, the ratio of the volume of the first ink 322, the volume of the first placement channel b1, and the volume of the first driving liquid 325 is 1:1:1.

[0077] In summary, the display panel 30 provided in this application embodiment includes a plurality of sub-pixel regions 30a arranged in an array. The display panel 30 also includes an insulating layer 321 and a plurality of first inks 322. The insulating layer 321 has a plurality of first display channels a1 and a plurality of first placement channels b1. One first ink 322, one first display channel a1, and one first placement channel b1 are located within one sub-pixel region 30a. Within one sub-pixel 30a, the first display channel a1 and the first placement channel b1 are connected, and the area of ​​the orthographic projection of the first display channel a1 in the light-emitting direction of the display panel 30 is larger than the area of ​​the orthographic projection of the first placement channel b1 in the light-emitting direction of the display panel 30, and at least part of the orthographic projection of the first placement channel b1 in the light-emitting direction is located within the orthographic projection of the first display channel a1 in the light-emitting direction. The first ink 322 is disposed within the first display channel a1, and at least a portion of the first ink 322 can flow from the first display channel a1 to the first placement channel b1. The first ink 322 is used to absorb ambient light. Therefore, when the sub-pixel area 30a is in a bright state, that is, when the spreading area of ​​the first ink 322 in the first display channel a1 is at its minimum, the first ink 322 is contained within the first placement channel b1, and the first ink 322 occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. Compared to the prior art, when the sub-pixel area is in a bright state, the ink gathers together, and the ink still occupies a large proportion of the opening area of ​​the sub-pixel. In this application, when the sub-pixel area 30a is in a bright state, the first ink 322 flows into the first placement channel b1, and the first ink 322 hardly occupies the opening area of ​​the sub-pixel area 30a, thus improving the opening ratio of the sub-pixel area 30a. Moreover, the display panel 30 of this application also has the advantages of simple structure and easy processing and manufacturing.

[0078] Please see Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the second layer structure of the display panel disclosed in the second embodiment of this application. Figure 5 for Figure 4 The diagram shows a layer structure at the sub-pixel area of ​​the display panel. The difference between the second-layer display panel and the first-layer display panel is that the second-layer display panel further includes a second ink 323 and a third ink 324. For a description of the similarities between the second-layer and first-layer display panels, please refer to the description of the first-layer display panel; it will not be repeated here.

[0079] In the embodiments of this application, Figure 5In the display layer 32, there are an insulating layer 321, a plurality of first inks 322, a plurality of second inks 323, a plurality of third inks 324, a plurality of first driving liquids 325, a plurality of second driving liquids 326, a plurality of third driving liquids 327, a plurality of first driving electrode groups 331 and a plurality of second driving electrode groups 332.

[0080] Specifically, a first ink 322, a second ink 323, a third ink 324, a first driving liquid 325, a second driving liquid 326, a third driving liquid 327, a first driving electrode group 331, and a second driving electrode group 332 are located within a sub-pixel region 30a. That is, a sub-pixel region 30a contains one first ink 322, one second ink 323, one third ink 324, one first driving liquid 325, one second driving liquid 326, one third driving liquid 327, one first driving electrode group 331, and one second driving electrode group 332.

[0081] In an exemplary embodiment, the insulating layer 321 is provided with a plurality of first display channels a1, a plurality of second display channels a2, a plurality of third display channels a3, a plurality of first placement channels b1, a plurality of second placement channels b2, a plurality of third placement channels b3, a plurality of first driving channels c1, a plurality of second driving channels c2, a plurality of third driving channels c3, a plurality of first cutout groups d1 and a plurality of second cutout groups d2.

[0082] Specifically, a first display channel a1, a second display channel a2, a third display channel a3, a first placement channel b1, a second placement channel b2, a third placement channel b3, a first driving channel c1, a second driving channel c2, a third driving channel c3, a first cutout group d1, and a second cutout group d2 are located within a sub-pixel area 30a. That is, a sub-pixel area 30a contains one first display channel a1, one second display channel a2, one third display channel a3, one first placement channel b1, one second placement channel b2, one third placement channel b3, one first driving channel c1, one second driving channel c2, one third driving channel c3, one first cutout group d1, and one second cutout group d2.

[0083] Let's take a sub-pixel region 30a as an example. Specifically, the first display channel a1, the second display channel a2, and the third display channel a3 are arranged sequentially along the Z-axis, and are parallel to each other. The second display channel a2 is spaced apart from the first display channel a1, and the third display channel a3 is spaced apart from the second display channel a2. That is, the first display channel a1, the second display channel a2, and the third display channel a3 are arranged sequentially and parallelly along the Z-axis.

[0084] Please refer to the following: Figure 5 and Figure 6 , Figure 6 for Figure 5 The diagram shows a top view of the sub-pixel region. The second display channel a2 is larger in the X-axis direction than the first display channel a1, and the second display channel a2 extends beyond the opposite sides of the first display channel a1 along the X-axis direction. The third display channel a3 is larger in the X-axis direction than the second display channel a2, and the third display channel a3 extends beyond the opposite sides of the second display channel a2 along the X-axis direction. That is, the orthographic projection of the first display channel a1 onto the first substrate 31 is located inside the orthographic projection of the second display channel a2 onto the first substrate 31, and the orthographic projection of the second display channel a2 onto the first substrate 31 is located inside the orthographic projection of the third display channel a3 onto the first substrate 31.

[0085] The first placement channel b1, the second placement channel b2, and the third placement channel b3 are arranged sequentially along the X-axis direction, and are parallel to each other. The second placement channel b2 is spaced apart from the first placement channel b1, and the third placement channel b3 is spaced apart from the second placement channel b2; that is, the first placement channel b1, the second placement channel b2, and the third placement channel b3 are arranged parallel to each other along the X-axis direction. The first placement channel b1 is connected to the side of the first display channel a1 facing the X-axis direction, and extends to the first substrate 31 in the opposite direction of the Z-axis. The second placement channel b2 is connected to the side of the second display channel a2 facing the X-axis direction, and extends to the first substrate 31 in the opposite direction of the Z-axis. The third placement channel b3 is connected to the side of the third display channel a3 facing the X-axis direction, and extends to the first substrate 31 in the opposite direction of the Z-axis. The Z-axis direction and the opposite direction of the Z-axis are reversed.

[0086] The first driving channel c1, the second driving channel c2, and the third driving channel c3 are arranged sequentially in the opposite direction of the X-axis, and are parallel to each other. The second driving channel c2 is spaced apart from the first driving channel c1, and the third driving channel c3 is spaced apart from the second driving channel c2; that is, the first driving channel c1, the second driving channel c2, and the third driving channel c3 are arranged parallel to each other in the opposite direction of the X-axis. The first driving channel c1 is connected to the side of the first display channel a1 facing the opposite direction of the X-axis, and extends to the first substrate 31 in the opposite direction of the Z-axis. The second driving channel c2 is connected to the side of the second display channel a2 facing the opposite direction of the X-axis, and extends to the first substrate 31 in the opposite direction of the Z-axis. The third driving channel c3 is connected to the side of the third display channel a3 facing the opposite direction of the X-axis, and extends to the first substrate 31 in the opposite direction of the Z-axis. The X-axis direction is opposite to the opposite direction of the X-axis.

[0087] It should be noted that the first display channel a1 is connected to the first placement channel b1 and the first driving channel c1 on opposite sides along the X-axis, the second display channel a2 is connected to the second placement channel b2 and the second driving channel c2 on opposite sides along the X-axis, and the third display channel a3 is connected to the third placement channel b3 and the third driving channel c3 on opposite sides along the X-axis.

[0088] In an exemplary embodiment, the area of ​​the orthographic projection of the first display channel a1 in the Z-axis direction is greater than the area of ​​the orthographic projection of the first placement channel b1 in the Z-axis direction, the area of ​​the orthographic projection of the first display channel a1 in the Z-axis direction is greater than the area of ​​the orthographic projection of the first driving channel c1 in the Z-axis direction, the orthographic projection of the first placement channel b1 in the Z-axis direction is at least partially located within the orthographic projection of the first display channel a1 in the Z-axis direction, and the orthographic projection of the first driving channel c1 in the Z-axis direction is at least partially located within the orthographic projection of the first display channel a1 in the Z-axis direction.

[0089] The area of ​​the orthographic projection of the second display channel a2 in the Z-axis direction is greater than the area of ​​the orthographic projection of the second placement channel b2 in the Z-axis direction, and the area of ​​the orthographic projection of the second display channel a2 in the Z-axis direction is greater than the area of ​​the orthographic projection of the second driving channel c2 in the Z-axis direction. The orthographic projection of the second placement channel b2 in the Z-axis direction is at least partially located within the orthographic projection of the second display channel a2 in the Z-axis direction, and the orthographic projection of the second driving channel c2 in the Z-axis direction is at least partially located within the orthographic projection of the second display channel a2 in the Z-axis direction.

[0090] The area of ​​the orthographic projection of the third display channel a3 in the Z-axis direction is greater than the area of ​​the orthographic projection of the third placement channel b3 in the Z-axis direction, and the area of ​​the orthographic projection of the third display channel a3 in the Z-axis direction is greater than the area of ​​the orthographic projection of the third driving channel c3 in the Z-axis direction. The orthographic projection of the third placement channel b3 in the Z-axis direction is at least partially located within the orthographic projection of the third display channel a3 in the Z-axis direction, and the orthographic projection of the third driving channel c3 in the Z-axis direction is at least partially located within the orthographic projection of the third display channel a3 in the Z-axis direction.

[0091] In this embodiment, a first ink 322 is disposed in a first display channel a1, a second ink 323 is disposed in a second display channel a2, and a third ink 324 is disposed in a third display channel a3. At least a portion of the first ink 322 can flow from the first display channel a1 to the first placement channel b1, at least a portion of the second ink 323 can flow from the second display channel a2 to the second placement channel b2, and at least a portion of the third ink 324 can flow from the third display channel a3 to the third display channel a3.

[0092] Ambient light can be emitted from the side of the second substrate 33 opposite to the first substrate 31 towards the first display channel a1, the second display channel a2, and the third display channel a3; and / or, ambient light can also be emitted from the side of the first substrate 31 opposite to the second substrate 33 towards the first display channel a1, the second display channel a2, and the third display channel a3. First ink 322 is used to convert the received ambient light into a first color light and reflect the first color light; second ink 323 is used to convert the received ambient light into a second color light and reflect the second color light; and third ink 324 is used to convert the received ambient light into a third color light and reflect the third color light.

[0093] It should be noted that when the first ink 322 covers the entire first display channel a1, the first placement channel b1 may have no first ink 322 or may have a small amount of first ink 322.

[0094] When the second ink 323 has completely filled the second display channel a2, the second placement channel b2 may have no second ink 323 or may have a small amount of second ink 323.

[0095] When the third ink 324 is fully applied to the entire third display channel a3, the third placement channel b3 may or may not have the third ink 324, or it may have a small amount of the third ink 324.

[0096] Understandably, the brightness of the first color light is maximized when the first ink 322 covers the entire first display channel a1, and minimized when the first ink 322 covers the entire first placement channel b1. Therefore, the brightness of the first color light can be adjusted by adjusting the spreading area of ​​the first ink 322 in the first display channel a1.

[0097] The brightness of the second color light is at its maximum when the second ink 323 covers the entire second display channel a2, and at its minimum when the second ink 323 covers the entire second placement channel b2. Therefore, the brightness of the second color light can be adjusted by adjusting the spreading area of ​​the second ink 323 in the second display channel a2.

[0098] The brightness of the third color light is at its maximum when the third ink 324 covers the entire third display channel a3, and at its minimum when the third ink 324 covers the entire third placement channel b3. Therefore, the brightness of the third color light can be adjusted by adjusting the spreading area of ​​the third ink 324 in the third display channel a3.

[0099] Therefore, full-color display of each sub-pixel area 30a is achieved by adjusting the brightness of the first color light, the second color light, and the third color light. When the first ink 322 has the smallest spreading area in the first display channel a1, the first ink 322 is contained within the first placement channel b1, at which point the first ink 322 occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. When the second ink 323 has the smallest spreading area in the second display channel a2, the second ink 323 is contained within the second placement channel b2, at which point the second ink 323 occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. When the third ink 324 has the smallest spreading area in the third display channel a3, the third ink 324 is contained within the third placement channel b3, at which point the third ink 324 occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. Compared to the prior art, where the ink occupies a larger proportion of the opening area of ​​the sub-pixel area when the ink is gathered together, this method achieves a more efficient result. In the display panel of this application, the first ink 322 can be gathered into the first placement channel b1, the second ink 323 can be gathered into the second placement channel b2, and the third ink 324 can be gathered into the third placement channel b3. Therefore, the first ink 322, the second ink 323, and the third ink 324 will hardly occupy the opening area of ​​the sub-pixel area 30a, thereby improving the opening ratio of the sub-pixel area 30a.

[0100] It should be noted that, due to the capillary force of the channel, the flow of the first ink 322, the second ink 323, the third ink 324, the first driving liquid 325, the second driving liquid 326, and the third driving liquid 327 are not affected by gravity, which makes the display panel 30 have better display stability.

[0101] The dimensions of the second display channel a2 should satisfy the following: the capillary force between the wall of the second display channel a2 and the second ink 323 can offset the gravity of the second ink 323, and the capillary force between the wall of the second display channel a2 and the second driving liquid 326 can offset the gravity of the second driving liquid 326.

[0102] The dimensions of the second placement channel b2 should satisfy the following: the capillary force between the wall of the second placement channel b2 and the second ink 323 can counteract the gravity acting on the second ink 323.

[0103] The dimensions of the second driving channel c2 should satisfy the following: the capillary force between the wall of the second driving channel c2 and the second driving liquid 326 can counteract the gravity acting on the second driving liquid 326.

[0104] The dimensions of the third display channel a3 should satisfy the following: the capillary force between the wall of the third display channel a3 and the third ink 324 can offset the gravity of the third ink 324, and the capillary force between the wall of the third display channel a3 and the third driving liquid 327 can offset the gravity of the third driving liquid 327.

[0105] The dimensions of the third placement channel b3 should satisfy the following: the capillary force between the wall of the third placement channel b3 and the third ink 324 can counteract the gravity acting on the third ink 324.

[0106] The dimensions of the third driving channel c3 should satisfy the following: the capillary force between the wall of the third driving channel c3 and the third driving liquid 327 can counteract the gravity acting on the third driving liquid 327.

[0107] In an exemplary embodiment, the first ink 322 can be any one of cyan ink, magenta ink, and yellow ink; the second ink 323 can be any one of cyan ink, magenta ink, and yellow ink; and the third ink 324 can be any one of cyan ink, magenta ink, and yellow ink, and the colors of the first ink 322, the second ink 323, and the third ink 324 are all different. For example, the first ink 322 can be cyan ink, the second ink 323 can be magenta ink, and the third ink 324 can be yellow ink. Correspondingly, the first colored light is cyan light, the second colored light is magenta light, and the third colored light is yellow light.

[0108] In this embodiment, the first driving liquid 325 is disposed in the first driving channel c1, the second driving liquid 326 is disposed in the second driving channel c2, and the third driving liquid 327 is disposed in the third driving channel c3. At least a portion of the first driving liquid 325 can flow from the first driving channel c1 to the first display channel a1, at least a portion of the second driving liquid 326 can flow from the second driving channel c2 to the second display channel a2, and at least a portion of the third driving liquid 327 can flow from the third driving channel c3 to the third display channel a3.

[0109] The first driving liquid 325 can compress the first ink 322 to drive the first ink 322 to flow from the first display channel a1 to the first placement channel b1. Alternatively, the first driving liquid 325 can create a negative pressure between itself and the first ink 322, making the pressure in the first placement channel b1 greater than the pressure in the first display channel a1. This pressure difference allows the first driving liquid 325 to drive the first ink 322 from the first placement channel b1 to the first display channel a1.

[0110] The second driving liquid 326 can compress the second ink 323 to drive the second ink 323 to flow from the second display channel a2 to the second placement channel b2. Alternatively, the second driving liquid 326 can create a negative pressure between itself and the second ink 323, making the pressure in the second placement channel b2 greater than the pressure in the second display channel a2. Consequently, the second driving liquid 326 can drive the second ink 323 to flow from the second placement channel b2 to the second display channel a2 under the pressure difference between the two channels.

[0111] The third driving liquid 327 can compress the third ink 324 to drive the third ink 324 from the third display channel a3 to the third placement channel b3. Alternatively, the third driving liquid 327 can create a negative pressure between itself and the third ink 324, making the pressure in the third placement channel b3 greater than the pressure in the third display channel a3. This pressure difference allows the third driving liquid 327 to drive the third ink 324 from the third placement channel b3 to the third display channel a3.

[0112] In an exemplary embodiment, the first driving liquid 325 is immiscible with the first ink 322, the second driving liquid 326 is immiscible with the second ink 323, and the third driving liquid 327 is immiscible with the third ink 324. Furthermore, the first driving liquid 325, the second driving liquid 326, and the third driving liquid 327 are all transparent liquids.

[0113] Understandably, driven by the electric field, the first ink 322 can flow from the first display channel a1 to the first placement channel b1 and vice versa. Furthermore, the first driving liquid 325 can also drive the first ink 322 to flow from the first display channel a1 to the first placement channel b1 and vice versa.

[0114] Driven by an electric field, the second ink 323 can flow from the second display channel a2 to the second placement channel b2 and vice versa. Furthermore, the second driving liquid 326 can also drive the second ink 323 to flow from the second display channel a2 to the second placement channel b2 and vice versa.

[0115] Driven by an electric field, the third ink 324 can flow from the third display channel a3 to the third placement channel b3 and vice versa. Furthermore, the third driving liquid 327 can also drive the third ink 324 to flow from the third display channel a3 to the third placement channel b3 and vice versa.

[0116] Therefore, by using a dual-drive approach to drive the flow of the first ink 322, the flow speed of the first ink 322 is increased, meaning that the first color light switches between bright and dark displays more quickly. Similarly, by using a dual-drive approach to drive the flow of the second ink 323, the flow speed of the second ink 323 is increased, meaning that the second color light switches between bright and dark displays more quickly. Furthermore, by using a dual-drive approach to drive the flow of the third ink 324, the flow speed of the third ink 324 is increased, meaning that the third color light switches between bright and dark displays more quickly. This is beneficial for improving the refresh rate of the display panel 30.

[0117] In this embodiment of the application, the first hollow group d1 is at least formed between the first placement channel b1 and the second placement channel b2, and between the second placement channel b2 and the third placement channel b3. The first driving electrode group 331 is disposed within the first hollow group d1, and the first driving electrode group 331 is used to drive the flow of the first ink 322, the flow of the second ink 323, and the flow of the third ink 324.

[0118] Specifically, the first hollowed-out group d1 includes a first receiving groove d11, a second receiving groove d12, a third receiving groove d13, and a first receiving channel d14. The first receiving groove d11 is located on the side of the first placement channel b1 facing the opposite direction of the X-axis, and is connected to the first placement channel b1. That is, the first receiving groove d11 is located on the side of the first placement channel b1 facing away from the second placement channel b2, and is connected to the first placement channel b1. The second receiving groove d12 is located on the side of the second placement channel b2 facing the opposite direction of the X-axis, and is connected to the second placement channel b2. That is, the second receiving groove d12 is located on the side of the second placement channel b2 facing away from the third placement channel b3, and is connected to the second placement channel b2. The third receiving groove d13 is located on the side of the third placement channel b3 facing the opposite direction of the X-axis, and the third receiving groove d13 is connected to the third placement channel b3. That is, the third receiving groove d13 is located on the side of the third placement channel b3 facing the second placement channel b2, and the third receiving groove d13 is connected to the third placement channel b3. The first receiving channel d14 is opened on the side of the third placement channel b3 facing the X-axis, and the first receiving channel d14 is spaced apart from the third placement channel b3. That is, the first receiving channel d14 is opened on the side of the third placement channel b3 opposite to the third receiving groove d13, and the first receiving channel d14 is spaced apart from the third placement channel b3.

[0119] In an exemplary embodiment, the first driving electrode group 331 includes a first driving electrode e1, a second driving electrode e2, a third driving electrode e3, and a first common electrode f1. The first driving electrode e1 is disposed in a first receiving groove d11, the second driving electrode e2 is disposed in a second receiving groove d12, the third driving electrode e3 is disposed in a third receiving groove d13, and the first common electrode f1 is disposed in a first receiving channel d14.

[0120] A first preset electric field is formed between the first driving electrode e1 and the first common electrode f1. The first preset electric field is used to drive the first ink 322 to flow from the first display channel a1 to the first placement channel b1 and to drive the first ink 322 to flow from the first placement channel b1 to the first display channel a1.

[0121] A second preset electric field is formed between the second driving electrode e2 and the first common electrode f1. The second preset electric field is used to drive the second ink 323 to flow from the second display channel a2 to the second placement channel b2 and to drive the second ink 323 to flow from the second placement channel b2 to the second display channel a2.

[0122] A third preset electric field is formed between the third driving electrode e3 and the first common electrode f1. The third preset electric field is used to drive the third ink 324 to flow from the third display channel a3 to the third placement channel b3 and to drive the third ink 324 to flow from the third placement channel b3 to the third display channel a3.

[0123] In this embodiment of the application, the second hollow group d2 is at least formed between the first driving channel c1 and the second driving channel c2, and between the second driving channel c2 and the third driving channel c3. The second driving electrode group 332 is disposed within the second hollow group d2.

[0124] Specifically, the second hollow group d2 includes a fourth receiving groove d21, a fifth receiving groove d22, a sixth receiving groove d23, and a second receiving channel d24. The fourth receiving groove d21 is located on the side of the first driving channel c1 facing the X-axis, and is connected to the first driving channel c1. That is, the fourth receiving groove d21 is located on the side of the first driving channel c1 opposite to the second driving channel c2, and is connected to the first driving channel c1. The fifth receiving groove d22 is located on the side of the second driving channel c2 facing the X-axis, and is connected to the second driving channel c2. That is, the fifth receiving groove d22 is located on the side of the second driving channel c2 opposite to the third driving channel c3, and is connected to the second driving channel c2. The sixth receiving slot d23 is located on the side of the third driving channel c3 facing the X-axis, and is connected to the third driving channel c3. Specifically, the sixth receiving slot d23 is located on the side of the third driving channel c3 facing the second driving channel c2, and is connected to the third driving channel c3. The second receiving channel d24 is located on the side of the third driving channel c3 facing the opposite direction to the X-axis, and is spaced apart from the third driving channel c3. Specifically, the second receiving channel d24 is located on the side of the third driving channel c3 opposite to the sixth receiving slot d23, and is spaced apart from the third driving channel c3.

[0125] The second driving electrode group 332 includes a fourth driving electrode e4, a fifth driving electrode e5, a sixth driving electrode e6, and a second common electrode f2. The fourth driving electrode e4 is disposed in the fourth receiving groove d21, the fifth driving electrode e5 is disposed in the fifth receiving groove d22, the sixth driving electrode e6 is disposed in the sixth receiving groove d23, and the second common electrode f2 is disposed in the second receiving channel d24.

[0126] A fourth preset electric field is formed between the fourth driving electrode e4 and the second common electrode f2. The fourth preset electric field is used to drive the first driving liquid 325 to flow from the first driving channel c1 to the first display channel a1 and to drive the first driving liquid 325 to flow from the first display channel a1 to the first driving channel c1.

[0127] A fifth preset electric field is formed between the fifth driving electrode e5 and the second common electrode f2. The fifth preset electric field is used to drive the second driving liquid 326 to flow from the second driving channel c2 to the second display channel a2 and to drive the second driving liquid 326 to flow from the second display channel a2 to the second driving channel c2.

[0128] A sixth preset electric field is formed between the sixth driving electrode e6 and the second common electrode f2. The sixth preset electric field is used to drive the third driving liquid 327 to flow from the third driving channel c3 to the third display channel a3 and to drive the third driving liquid 327 to flow from the third display channel a3 to the third driving channel c3.

[0129] Understandably, the first driving electrode group 331 and the second driving electrode group 332 are not arranged in the light emission direction of the first color light, the second color light and the third color light, which reduces the loss of the first color light, the second color light and the third color light and improves the brightness of the display panel 30.

[0130] It should be noted that the second ink 323 contacts the insulating layer 321 in the second display channel a2, and the second ink 323 contacts both the insulating layer 321 and the second driving electrode e2 in the second placement channel b2. The second driving liquid 326 contacts both the insulating layer 321 and the fifth driving electrode e5 in the second driving channel c2.

[0131] The insulating layer 321 and the second driving electrode e2 have good hydrophobic properties, which improves the flowability of the second ink 323 within the second display channel a2 and the second placement channel b2. The insulating layer 321 and the fifth driving electrode e5 have good hydrophobic properties, which improves the flowability of the second driving liquid 326 within the second driving channel c2 and the second display channel a2.

[0132] The third ink 324 contacts the insulating layer 321 in the third display channel a3, and the third ink 324 contacts both the insulating layer 321 and the third driving electrode e3 in the third placement channel b3. The third driving liquid 327 contacts both the insulating layer 321 and the sixth driving electrode e6 in the third driving channel c3.

[0133] The insulating layer 321 and the third driving electrode e3 have good hydrophobic properties, which improves the flowability of the third ink 324 within the third display channel a3 and the third placement channel b3. The insulating layer 321 and the sixth driving electrode e6 have good hydrophobic properties, which improves the flowability of the third driving liquid 327 within the third driving channel c3 and the third display channel a3.

[0134] In an exemplary embodiment, the volume ratio of the first ink 322, the first placement channel b1, and the first driving liquid 325 is 1:1:1. The volume ratio of the second ink 323, the second placement channel b2, and the second driving liquid 326 is 1:1:1. The volume ratio of the third ink 324, the third placement channel b3, and the third driving liquid 327 is 1:1:1.

[0135] In summary, the display panel 30 provided in this application embodiment includes a plurality of sub-pixel areas 30a arranged in an array. The display panel 30 also includes an insulating layer 321, a plurality of first inks 322, a plurality of second inks 323, and a plurality of third inks 324. The insulating layer 321 has a plurality of first display channels a1, a plurality of second display channels a2, a plurality of third display channels a3, a plurality of first placement channels b1, a plurality of second placement channels b2, and a plurality of third placement channels b3. A first ink 322, a second ink 323, a third ink 324, a first display channel a1, a first placement channel b1, a second placement channel b2, and a third placement channel b3 are located within a sub-pixel area 30a. Within a sub-pixel 30a, a first display channel a1 is connected to a first placement channel b1, and the area of ​​the orthographic projection of the first display channel a1 in the light-emitting direction of the display panel 30 is larger than the area of ​​the orthographic projection of the first placement channel b1 in the light-emitting direction of the display panel 30, and the orthographic projection of the first placement channel b1 in the light-emitting direction of the display panel 30 is at least partially located within the orthographic projection of the first display channel a1 in the light-emitting direction of the display panel 30. Within a sub-pixel 30a, a second display channel a2 is connected to a second placement channel b2, and the area of ​​the orthographic projection of the second display channel a2 in the light-emitting direction of the display panel 30 is larger than the area of ​​the orthographic projection of the second placement channel b2 in the light-emitting direction of the display panel 30, and the orthographic projection of the second placement channel b2 in the light-emitting direction of the display panel 30 is at least partially located within the orthographic projection of the second display channel a2 in the light-emitting direction of the display panel 30. Within a sub-pixel 30a, the third display channel a3 is connected to the third placement channel b3, and the area of ​​the orthographic projection of the third display channel a3 in the light-emitting direction of the display panel 30 is larger than the area of ​​the orthographic projection of the third placement channel b3 in the light-emitting direction of the display panel 30. Furthermore, at least a portion of the orthographic projection of the third placement channel b3 in the light-emitting direction of the display panel 30 lies within the orthographic projection of the third display channel a3 in the light-emitting direction of the display panel 30. A first ink 322 is disposed within the first display channel a1, a second ink 323 is disposed within the second display channel a2, and a third ink 324 is disposed within the third display channel a3. At least a portion of the first ink 322 can flow from the first display channel a1 to the first placement channel b1, at least a portion of the second ink 323 can flow from the second display channel a2 to the second placement channel b2, and at least a portion of the third ink 324 can flow from the third display channel a3 to the third display channel a3. The first ink 322 is used to convert the received ambient light into a first color light and reflect the first color light; the second ink 323 is used to convert the received ambient light into a second color light and reflect the second color light; and the third ink 324 is used to convert the received ambient light into a third color light and reflect the third color light.Therefore, when the first ink 322 has the smallest spreading area in the first display channel a1, the first ink 322 is contained within the first placement channel b1, and occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. When the second ink 323 has the smallest spreading area in the second display channel a2, the second ink 323 is contained within the second placement channel b2, and occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. When the third ink 324 has the smallest spreading area in the third display channel a3, the third ink 324 is contained within the third placement channel b3, and occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. Compared to the prior art, where the ink occupies a larger proportion of the opening area of ​​the sub-pixel area when the ink is gathered together, this method achieves the desired effect. In the display panel 30 of this application, the first ink 322 is gathered into the first placement channel b1, the second ink 323 is gathered into the second placement channel b2, and the third ink 324 is gathered into the third placement channel b3. Therefore, the first ink 322, the second ink 323, and the third ink 324 hardly occupy the opening area of ​​the sub-pixel area 30a, thereby improving the aperture ratio of the sub-pixel area 30a. Moreover, the display panel 30 of this application also has the advantages of simple structure and easy processing and manufacturing.

[0136] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0137] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims. Those skilled in the art will understand that implementing all or part of the processes of the above embodiments, and making equivalent changes according to the claims of this application, still falls within the scope of this application.

Claims

1. A display panel, comprising a plurality of sub-pixel regions arranged in an array, characterized in that, The display panel further comprises an insulating layer, a first driving liquid, a first driving electrode group and a first ink, the insulating layer is provided with a plurality of first display channels, a plurality of first driving channels and a plurality of first placement channels, one first display channel, one first driving channel, one first driving electrode group and one first placement channel are located in one sub-pixel area; In one sub-pixel, the first display channel and the first placement channel are in communication, the side of the first display channel opposite to the first placement channel is in communication with the first driving channel, and the area of the projection of the first display channel in the light-emitting direction of the display panel is greater than the area of the projection of the first placement channel in the light-emitting direction of the display panel; wherein the first driving liquid is arranged in the first driving channel, the first driving liquid is in contact with the first ink, and at least part of the first driving liquid flows from the first driving channel to the first display channel to drive the first ink to flow from the first display channel to the first placement channel; The first ink is arranged in the first display channel, the first driving electrode group forms a first preset electric field, the first preset electric field is used to drive at least part of the first ink to flow from the first display channel to the first placement channel, and the first ink is used to absorb ambient light.

2. The display panel of claim 1, wherein, The insulating layer is further provided with a plurality of first hollow groups, one first hollow group is located in one sub-pixel area, and the first hollow group is provided on the opposite sides of the first placement channel; One first driving electrode group is arranged in the first hollow group, and the first driving electrode group is used to drive the first ink to flow from the first display channel to the first placement channel or from the first placement channel to the first display channel.

3. The display panel of claim 1, wherein, The first driving liquid is used to selectively drive the first ink to flow from the first display channel to the first placement channel or to drive the first ink to flow from the first placement channel to the first display channel.

4. The display panel of claim 3, wherein, The insulating layer is further provided with a plurality of second hollow groups, one second hollow group is located in one sub-pixel area, and the second hollow group is provided on the opposite sides of the first driving channel; The display panel further comprises a plurality of second driving electrode groups, one second driving electrode group is arranged in one second hollow group, and the second driving electrode group is used to selectively drive the first driving liquid to flow from the first driving channel to the first display channel or to drive the first driving liquid to flow from the first display channel to the first driving channel.

5. A display panel comprising a plurality of sub-pixel regions arranged in an array, characterized in that, The display panel further comprises an insulating layer, a first ink, a second ink and a third ink, the insulating layer is provided with a plurality of first display channels, a plurality of second display channels, a plurality of third display channels, a plurality of first placement channels, a plurality of second placement channels and a plurality of third placement channels, one first display channel, one second display channel, one third display channel, one first placement channel, one second placement channel and one third placement channel are located in one sub-pixel area; In one sub-pixel, the first display channel, the second display channel and the third display channel are arranged in layers, the first display channel is in communication with the first placement channel, and the area of the orthogonal projection of the first display channel in the light-emitting direction of the display panel is greater than the area of the orthogonal projection of the first placement channel in the light-emitting direction of the display panel, the second display channel is in communication with the second placement channel, and the area of the orthogonal projection of the second display channel in the light-emitting direction of the display panel is greater than the area of the orthogonal projection of the second placement channel in the light-emitting direction of the display panel, the third display channel is in communication with the third placement channel, and the area of the orthogonal projection of the third display channel in the light-emitting direction of the display panel is greater than the area of the orthogonal projection of the third placement channel in the light-emitting direction of the display panel; The first ink is arranged in the first display channel, the second ink is arranged in the second display channel, the third ink is arranged in the third display channel, at least part of the first ink flows from the first display channel to the first placement channel, at least part of the second ink flows from the second display channel to the second placement channel, and at least part of the third ink flows from the third display channel to the third display channel, the first ink is used for converting received ambient light into first color light and reflecting the first color light, the second ink is used for converting received ambient light into second color light and reflecting the second color light, and the third ink is used for converting received ambient light into third color light and reflecting the third color light.

6. The display panel of claim 5, wherein, The insulating layer is further provided with a plurality of first hollow groups, one first hollow group is located in one sub-pixel area, and the first hollow group is arranged at least between the first placement channel and the second placement channel and between the second placement channel and the third placement channel; The display panel further comprises a plurality of first driving electrode groups, one first driving electrode group is arranged in the first hollow group, and the first driving electrode group is used for driving the flow of the first ink, the flow of the second ink and the flow of the third ink.

7. The display panel of claim 5, wherein, The insulating layer is also provided with a plurality of first driving channels, a plurality of second driving channels and a plurality of third driving channels. One first driving channel, one second driving channel and one third driving channel are located in one sub-pixel. One first display channel opposite to one side of the first placement channel is in communication with the first driving channel. One second display channel opposite to one side of the second placement channel is in communication with the second driving channel. One third display channel opposite to one side of the third placement channel is in communication with the third driving channel. The display panel further comprises a first driving liquid, a second driving liquid and a third driving liquid. The first driving liquid is arranged in the first driving channel. The second driving liquid is arranged in the second driving channel. The third driving liquid is arranged in the third driving channel. The first driving liquid is in contact with the first ink and is used to drive the first ink to flow. The second driving liquid is in contact with the second ink and is used to drive the second ink to flow. The third driving liquid is in contact with the third ink and is used to drive the third ink to flow.

8. The display panel of claim 7, wherein, The insulating layer is also provided with a plurality of second hollow groups. One second hollow group is located in one sub-pixel region. The second hollow group is arranged between the first driving channel and the second driving channel and between the second driving channel and the third driving channel. The display panel further comprises a plurality of second driving electrode groups. One second driving electrode group is arranged in one second hollow group. The second driving electrode group is used to drive the first driving liquid to flow, the second driving liquid to flow and the third driving liquid to flow.

9. The display panel of claim 7 or 8, wherein, The volume ratio of the first ink, the first placement channel and the first driving liquid is 1:1:

1. The volume ratio of the second ink, the second placement channel and the second driving liquid is 1:1:

1. The volume ratio of the third ink, the third placement channel and the third driving liquid is 1:1:

1.

10. A display device, characterized by comprising: The display device comprises a power board and the display panel according to any one of claims 1-9. The power board is electrically connected with the display panel and is used to supply power to the display panel.

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