Display panel and display device

Abstract

The invention provides a display panel and a display device, the display panel further comprises an insulating layer and first ink, and the insulating layer is provided with a plurality of first display channels and a plurality of first placement channels. The first display channel is communicated with 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 that of the orthographic projection of the first placement channel in the light emitting direction of the display panel. The first ink is arranged in the first display channel, at least part of the first ink flows from the first display channel to the first placing channel, and the first ink is used for absorbing ambient light. Compared with the prior art, when the sub-pixel region is in a bright display state and the printing ink is gathered together, the printing ink still occupies a large proportion of the opening area of the sub-pixel. According to the display panel, when the sub-pixel areas are in bright-state display, the first ink flows into the first placement channels, the first ink hardly occupies the opening areas of the sub-pixel areas, and the aperture ratio of the sub-pixel areas is increased.

Description

Technical Field

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

[0002] As a reflective display technology, the electrowetting display panel only needs ambient light to achieve the purpose of display. The electrowetting display panel has the advantages of high brightness, high contrast and wide viewing angle.

[0003] Ink is disposed in each sub-pixel of the electrowetting display panel, so the sub-pixel can display different grayscales by adjusting the spreading area of ​​the ink. In the prior art, even when the spreading area of ​​the ink is the smallest, that is, when the ink is gathered together, the ink will occupy a larger proportion of the opening area of ​​the sub-pixel, which will result in a lower opening ratio of the sub-pixel, thereby reducing the display brightness of the display panel.

[0004] Therefore, how to solve the problem in the prior art that the opening ratio of the electrowetting display panel is low due to the ink occupying a large proportion of the opening area of ​​the sub-pixel is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a display panel and a display device, which aim to solve the technical problem in the prior art that the opening rate of the electrowetting display panel is low due to the ink occupying a large proportion of the opening area of ​​the sub-pixel.

[0006] In a first aspect, an embodiment of the present application provides a display panel, the display panel comprising a plurality of sub-pixel regions arranged in an array. The display panel further comprises an insulating layer and a first ink, the insulating layer being provided with a plurality of first display channels and a plurality of first placement channels, one of the first display channels and one of the first placement channels being located in one of the sub-pixel regions. In one of the sub-pixels, 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 greater 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 in the first display channel, at least a portion of the first ink flows from the first display channel to the first placement channel, and the first ink is used to absorb ambient light.

[0007] In summary, when the sub-pixel area is displayed in a bright state, that is, when the spreading area of ​​the first ink in the first display channel is the smallest, the first ink is contained in the first placement channel, and the first ink occupies a very small proportion of the opening area of ​​the sub-pixel area. Compared with the prior art, when the sub-pixel area is in a bright state, when the ink is gathered together, the ink will still occupy a larger proportion of the opening area of ​​the sub-pixel. In the present application, when the sub-pixel area is displayed 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, thereby increasing the opening ratio of the sub-pixel area.

[0008] In an exemplary embodiment, the insulating layer is further provided with a plurality of first hollow groups, one of the first hollow groups is located in one of the sub-pixel regions, and the first hollow groups are provided on opposite sides of the first placement channel. The display panel further includes a plurality of first drive electrode groups, one of the first drive electrode groups is provided in the first hollow group, and the first drive 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 is further provided with a plurality of first driving channels, one of the first driving channels is located in one of the sub-pixels, and the first display channel is connected to the first driving channel on the side opposite to the first placement channel. The display panel further includes a first driving liquid, which is disposed in the first driving channel and contacts 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 is further provided with a plurality of second hollow groups, one of the second hollow groups is located in one of the sub-pixel regions, and the second hollow groups are provided on opposite sides of the first driving channel. The display panel further includes a plurality of second driving electrode groups, one of the second driving electrode groups is provided in one of the second hollow 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] In a second aspect, an embodiment of the present application further provides a display panel, wherein the display panel array is provided with a plurality of sub-pixel regions. The display panel further comprises an insulating layer, a first ink, a second ink and a third ink, wherein 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 of the first display channels, one of the second display channels, one of the third display channels, one of the first placement channels, one of the second placement channels and one of the third placement channels are located in one of the sub-pixel regions.

[0012] In one of the sub-pixels, 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 orthogonal projection of the first display channel in the light emitting direction of the display panel is larger 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 connected to 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 larger 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 connected to 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 larger than the area of ​​the orthogonal projection of the third placement channel in the light emitting direction of the display panel.

[0013] Among them, the first ink is arranged in the first display channel, the second ink is arranged in the second display channel, and 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 to convert the received ambient light into the first color light and reflect the first color light, the second ink is used to convert the received ambient light into the second color light and reflect the second color light, and the third ink is used to convert the received ambient light into the third color light and reflect the third color light.

[0014] In summary, when the spreading area of ​​the first ink in the first display channel is the smallest, the first ink is placed in the first placement channel, and the first ink occupies a very small proportion of the opening area of ​​the sub-pixel area. When the spreading area of ​​the second ink in the second display channel is the smallest, the second ink is placed in the second placement channel, and the second ink occupies a very small proportion of the opening area of ​​the sub-pixel area. When the spreading area of ​​the third ink in the third display channel is the smallest, the third ink is placed in the third placement channel, and the third ink occupies a very small proportion of the opening area of ​​the sub-pixel area. Compared with the prior art, when the inks are gathered together, the inks occupy a larger proportion of the opening area of ​​the sub-pixel area. In the display panel of the present application, the first ink is gathered into the first placement channel, the second ink is gathered into the second placement channel, and the third ink is gathered into the third placement channel, so the first ink, the second ink and the third ink will hardly occupy the opening area of ​​the sub-pixel area, thereby increasing the opening rate of the sub-pixel area.

[0015] In an exemplary embodiment, the insulating layer further has a plurality of first hollow groups, one of the first hollow groups is located in one of the sub-pixel regions, and the first hollow 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 includes a plurality of first drive electrode groups, one of the first drive electrode groups is disposed in the first hollow group, and the first drive electrode group is used to drive the first ink flow, the second ink flow, and the third ink flow.

[0016] In an exemplary embodiment, the insulating layer is further provided with a plurality of first driving channels, a plurality of second driving channels, and a plurality of third driving channels, and one of the first driving channels, one of the second driving channels, and one of the third driving channels are located in one of the sub-pixels. Moreover, a side of a first display channel facing away from the first placement channel is connected to the first driving channel, a side of a second display channel facing away from the second placement channel is connected to the second driving channel, and a side of a third display channel facing away from the third placement channel is connected to the third driving 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] 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.

[0019] In an exemplary embodiment, the insulating layer is further provided with a plurality of second hollow groups, one second hollow group is located in one sub-pixel region, and the second hollow groups are at least provided 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 further includes a plurality of second driving electrode groups, one of the second driving electrode groups is disposed in one of the second hollow groups, and the second driving electrode group is used to drive the first driving liquid flow, the second driving liquid flow, and the third driving liquid flow.

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

[0022] In a third aspect, an embodiment of the present application further provides a display device, which includes a power board and the display panel mentioned above, wherein the power board is electrically connected to the display panel, and the power board is used to supply power to the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

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

[0026] Figure 3 for Figure 2 A schematic diagram of the layer structure at a sub-pixel region of a display panel is shown;

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

[0028] Figure 5 for Figure 4 A schematic diagram of the layer structure at a sub-pixel region of a display panel is shown;

[0029] Figure 6 for Figure 5 A schematic diagram of the top view structure of a sub-pixel area is shown.

[0030] Description of reference numerals:

[0031] 1-display device; 10-housing; 30-display panel; 30a-sub-pixel 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 hollow group; d2-second hollow group; d11-first receiving groove; d12-second receiving groove; d13-third receiving groove;

[0032] d14-first accommodating channel; d21-fourth accommodating groove; d22-fifth accommodating groove; d23-sixth accommodating groove;

[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 DESCRIPTION

[0035] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0036] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be used to implement. The serial numbers for the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, include direct and indirect connections (couplings). The directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including", "may include", "include", or "may include" used in this application indicate the existence of the corresponding functions, operations, elements, etc. disclosed, and do not limit one or more other functions, operations, elements, etc. In addition, the terms "including" or "include" indicate the existence of the corresponding features, numbers, steps, operations, elements, components, or combinations thereof disclosed in the specification, and do not exclude the existence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusions. It should also be understood that "at least one" described herein means one or more, such as one, two or three, etc., and "plurality" means at least two, such as two or three, etc., unless otherwise clearly defined.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0039] See also Figure 1 , Figure 1Schematic diagram of the layer structure of the display device disclosed in the first embodiment of the present application. In the embodiment of the present application, the display device 1 may include a housing 10 and a display panel 30 disposed in the housing 10, and the light-emitting side of the display panel 30 is exposed from the housing 10. The housing 10 is used to fix the display panel 30, and the display panel 30 is used to display images. Among them, the display panel 30 is an electrowetting display panel, and the display panel 30 can display on one side or on both sides.

[0040] It can be understood that the display device 1 can be used for electronic devices including but not limited to televisions, tablet computers, laptop computers, desktop computers, mobile phones, vehicle displays, smart watches, smart bracelets, smart glasses, road signs, electronic readers, etc. According to the embodiments of the present application, the specific type of the display device 1 is not particularly limited, and those skilled in the art can design it accordingly according to the specific use requirements of the display device 1, which will not be repeated here.

[0041] In an exemplary embodiment, the display device 1 may further include other necessary components and parts such as a driving board, a power board, a high-voltage board, and a key control board, which may be supplemented accordingly by those skilled in the art according to the specific type and actual function of the display device 1, and will not be described in detail here. The power board is electrically connected to the display panel, and the power board 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, wherein the processor is electrically connected to the display panel 30 and is used to control the display panel 30 to display. The memory is electrically connected to the processor and is used to store program codes required for the processor to run, so as to control the display content of the display panel 30, etc.

[0043] In an exemplary embodiment, the memory may include a volatile memory (Volatile Memory), such as a random access memory (Random Access Memory, RAM); the memory may also include a non-volatile memory (NVM), such as a read-only memory (Read-Only Memory, ROM), a flash memory (Flash Memory, FM), a hard disk drive (Hard Disk Drive, HDD) or a solid-state drive (SSD). The memory may also include a combination of the above-mentioned 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), a microprocessor, a microcontroller, a main processor, a controller, etc. The processor is used to execute various types of digital storage instructions, such as software or firmware programs stored in a memory, which enables the computing device to provide a wide variety of services.

[0045] See also Figure 2 , Figure 2 This is a schematic diagram of the first layer structure of the display panel disclosed in the second embodiment of the present application. For the convenience of description, it is defined as Figure 2 The length direction of the display panel 30 is the X-axis direction, the width direction of the display panel 30 is the Y-axis direction, the thickness direction of the display panel 30 is the Z-axis direction, and the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other. The Z-axis direction is also the light emitting direction of the display panel 30.

[0046] In the embodiment of the present application, the display panel 30 includes a plurality of sub-pixel regions 30a, and the plurality of sub-pixel regions 30a are distributed 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. Part of the first substrate 31, part of the display layer 32, and part of the second substrate 33 are arranged in each sub-pixel region 30a. The display layer 32 is used to display the picture, and the first substrate 31 and the second substrate 33 are used to protect the display layer 32.

[0047] See also Figure 3 , Figure 3 for Figure 2 Schematic diagram of the layer structure at the sub-pixel area of ​​the display panel shown. 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 opposite sides of the insulating layer 321 are connected to the first substrate 31 and the second substrate 33, respectively.

[0048] Among them, a first ink 322, a first driving liquid 325, a first driving electrode group 331 and a second driving electrode group 332 are located in a sub-pixel area 30a, 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 set in the sub-pixel area 30a.

[0049] In an exemplary embodiment, 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 hollow groups d1 , and a plurality of second hollow groups d2 are defined in the insulating layer 321 .

[0050] Among them, a first display channel a1, a first placement channel b1, a first drive channel c1, a first hollow group d1 and a second hollow group d2 are located in a sub-pixel area 30a, that is, a first display channel a1, a first placement channel b1, a first drive channel c1, a first hollow group d1 and a second hollow group d2 are provided in the sub-pixel area 30a.

[0051] In order to facilitate the description and understanding of this application, Figure 3 The sub-pixel area 30a shown is used as an example. Specifically, the overall shape of the first display channel a1 is a rectangular parallelepiped, the size of the first display channel a1 in the X-axis direction is greater than the size of the first display channel a1 in the Z-axis direction, and the size of the first display channel a1 in the Y-axis direction is greater than the size of the first display channel a1 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 display channel a1 in the X-axis direction, and 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 display channel a1 in the Y-axis direction.

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

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

[0054] In an exemplary embodiment, an area of ​​the orthographic projection of the first display channel a1 in the Z-axis direction is larger than an area of ​​the orthographic projection of the first placement channel b1 in the Z-axis direction, an area of ​​the orthographic projection of the first display channel a1 in the Z-axis direction is larger than an area of ​​the orthographic projection of the first drive channel c1 in the Z-axis direction, an 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 an orthographic projection of the first drive 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 drive channel c1. The first placement channel b1 is parallel to the first drive channel c1 along the X-axis direction. The first display channel a1 is connected to the first placement channel b1 and the first drive channel c1 at opposite sides along the X-axis direction. 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 drive 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 in 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 .

[0057] The ambient light may be emitted toward the first display channel a1 from the side of the second substrate 33 facing away from the first substrate 31; and / or, the ambient light may be emitted toward the first display channel a1 from the side of the first substrate 31 facing away from the second substrate 33. The first ink 322 is used to absorb the ambient light.

[0058] It should be noted that when the first ink 322 is spread over the entire first display channel a1, the first placement channel b1 may not have the first ink 322 or may have a small amount of the first ink 322. When the first ink 322 is spread over the entire first placement channel b1, the first display channel a1 may not have the first ink 322 or may have a small amount of the first ink 322.

[0059] It can be understood that when the first ink 322 is spread over the entire first display channel a1, the brightness of the sub-pixel area 30a is the smallest, and when the first ink 322 is spread over the entire first placement channel b1, the brightness of the sub-pixel area 30a is the largest. The brightness of the 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 spreading area of ​​the first ink 322 in the first display channel a1 is the smallest, the first ink 322 is contained in the first placement channel b1, and at this time, the first ink 322 occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. Compared with the prior art, when the sub-pixel area 30a is displayed in a bright state, when the ink is gathered together, the ink still occupies a larger proportion of the opening area of ​​the sub-pixel. In the present application, when the sub-pixel area 30a is displayed 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, thereby improving the opening rate of the sub-pixel area 30a.

[0061] It should be noted that the size of the first display channel a1 should satisfy the following requirements: the capillary force between the wall of the first display channel a1 and the first ink 322 can offset the gravity exerted on 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 exerted on 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 the embodiment of the present application, the first driving liquid 325 is disposed in the first driving channel c1, and at least part 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 squeeze the first ink 322 to drive the first ink 322 to flow from the first display channel a1 to the first placement channel b1. Since the first display channel a1 is connected to the first placement channel b1 and the first driving channel c1 respectively, the first driving liquid 325 can form a negative pressure in the first display channel a1, so that the pressure in the first placement channel b1 is greater than the pressure in the first display channel a1, and then the first ink 322 can be driven to flow 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 to flow from the first display channel a1 to the first placement channel b1, or drive the first ink 322 to flow from the first placement channel b1 to the first display channel a1. Among them, the first driving liquid 325 is immiscible with the first ink 322, and the first driving liquid 325 is a transparent liquid.

[0063] It can be understood that, under the drive of the electric field, the first ink 322 can flow from the first display channel a1 to the first placement channel b1 and the first ink 322 can flow from the first placement channel b1 to the first display channel a1. Moreover, the first ink 322 can also be driven to flow from the first display channel a1 to the first placement channel b1 and the first ink 322 can be driven to flow from the first placement channel b1 to the first display channel a1 through the first driving liquid 325. Therefore, by setting a dual drive mode to drive the first ink 322 to flow, the flow speed of the first ink 322 is faster, that is, the sub-pixel area 30a can switch between light and dark display faster, which is conducive to improving the refresh rate of the display panel 30.

[0064] In an embodiment of the present application, the first hollow group d1 is opened on opposite sides of the first placement channel b1 along the X-axis direction, and the first driving electrode group 331 is arranged 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 drive the first ink 322 to flow from the first placement channel b1 to the first display channel a1.

[0065] The size of the first placement channel b1 should satisfy the requirement that the capillary force between the wall of the first placement channel b1 and the first ink 322 can offset the gravity exerted on the first ink 322 .

[0066] The size of the first driving channel c1 should satisfy the requirement that the capillary force between the wall surface of the first driving channel c1 and the first driving liquid 325 can offset the gravity exerted 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, so that the display stability performance of the display panel 30 is better.

[0068] Specifically, the first hollow group d1 includes a first accommodating groove d11 and a first accommodating channel d14. The first accommodating groove d11 and the first accommodating channel d14 are arranged on opposite sides of the first placement channel b1 along the X-axis direction. For example, the first accommodating channel d14 is arranged on the side of the first placement channel b1 facing the X-axis direction, and the first accommodating groove d11 is arranged on the side of the first placement channel b1 facing the opposite direction of the X-axis, that is, the first accommodating channel d14 is arranged on the side of the first placement channel b1 facing away from the first drive channel c1, and the first accommodating groove d11 is arranged on the side of the first placement channel b1 facing the first drive channel c1. The first accommodating groove d11 is connected to the first placement channel b1, and the first accommodating channel d14 is spaced from the first placement channel b1. Among them, the X-axis direction is opposite to the opposite direction of the X-axis.

[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, and 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. The principle by which the first preset electric field drives the first ink 322 to flow is the electrowetting effect.

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

[0071] Specifically, the second hollow group d2 includes a fourth accommodating groove d21 and a second accommodating channel d24. The fourth accommodating groove d21 and the second accommodating channel d24 are arranged on opposite sides of the first driving channel c1 along the X-axis direction. For example, the fourth accommodating groove d21 is arranged on the side of the first driving channel c1 facing the X-axis direction, and the second accommodating channel d24 is arranged on the side of the first driving channel c1 facing the opposite direction of the X-axis. That is, the fourth accommodating groove d21 is arranged on the side of the first driving channel c1 facing the first placement channel b1, and the second accommodating channel d24 is arranged on the side of the first driving channel c1 facing away from the first placement channel b1. The fourth accommodating groove d21 is connected to the first driving channel c1, and the second accommodating channel d24 is spaced 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, wherein the fourth driving electrode e4 is disposed in the fourth receiving groove d21, and the second common electrode f2 is disposed in the second receiving channel d24. The fourth driving electrode e4 and the second common electrode f2 are used to form a fourth preset electric field, and 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. The principle by which the second preset electric field drives the first driving liquid 325 to flow is the electrowetting effect.

[0073] It can be understood that the first driving electrode group 331 and the second driving electrode group 332 are not arranged in the light emitting 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 the insulating layer 321 and the first driving electrode e1 in the first placement channel b1. The first driving liquid 325 contacts 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 hydrophobicity, so that the first ink 322 has better fluidity in the first display channel a1 and the first placement channel b1. The insulating layer 321 and the fourth driving electrode e4 have good hydrophobicity, so that the first driving liquid 325 has better fluidity in 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 the embodiment of the present application includes a plurality of sub-pixel areas 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 is provided with 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 in one sub-pixel area 30a. In one sub-pixel 30a, the first display channel a1 is connected to the 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 greater 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 is at least partially located in the orthographic projection of the first display channel a1 in the light emitting direction. The first ink 322 is arranged in the first display channel a1, and at least part of the first ink 322 can flow from the first display channel a1 to the first placement channel b1, and the first ink 322 is used to absorb ambient light. Therefore, when the sub-pixel area 30a is displayed in a bright state, that is, when the spreading area of ​​the first ink 322 in the first display channel a1 is the smallest, the first ink 322 is contained in 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 with the prior art, when the sub-pixel area is in a bright state display, when the ink is gathered together, the ink will still occupy a larger proportion of the opening area of ​​the sub-pixel. In the present application, when the sub-pixel area 30a is displayed 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, thereby increasing the opening ratio of the sub-pixel area 30a. Moreover, the display panel 30 of the present application also has the advantages of simple structure and easy processing and manufacturing.

[0078] See also Figure 4 and Figure 5 , Figure 4 Schematic diagram of a second layer structure of a display panel disclosed in the second embodiment of the present application, Figure 5 for Figure 4 Schematic diagram of the layer structure of the sub-pixel region of the display panel shown. The difference between the display panel of the second layer structure and the display panel of the first layer structure is that the display panel of the second layer structure also includes a second ink 323 and a third ink 324. For the description of the similarities between the display panel of the second layer structure and the display panel of the first layer structure, please refer to the display panel of the first layer structure, which will not be repeated here.

[0079] In the implementation mode of this application, Figure 5In the embodiment, the display layer 32 includes 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] Among them, 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 in a sub-pixel area 30a. That is, 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 provided in a sub-pixel area 30a.

[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 drive channels c1, a plurality of second drive channels c2, a plurality of third drive channels c3, a plurality of first hollow groups d1 and a plurality of second hollow groups d2.

[0082] Among them, 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 hollow group d1 and a second hollow group d2 are located in a sub-pixel area 30a. That is, 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 hollow group d1 and a second hollow group d2 are arranged in a sub-pixel area 30a.

[0083] Take a sub-pixel area 30a as an example. Specifically, the first display channel a1, the second display channel a2 and the third display channel a3 are arranged in sequence along the Z-axis direction, and the first display channel a1, the second display channel a2 and the third display channel a3 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 in sequence along the Z-axis direction in parallel and spaced apart.

[0084] Please also read Figure 5 and Figure 6 , Figure 6 for Figure 5 The schematic diagram of the top view structure of the sub-pixel area shown. The size of the second display channel a2 in the X-axis direction is greater than the size of the first display channel a1 in the X-axis direction, and the second display channel a2 extends out of the first display channel a1 on opposite sides along the X-axis direction. The size of the third display channel a3 in the X-axis direction is greater than the size of the second display channel a2 in the X-axis direction, and the third display channel a3 extends out of the second display channel a2 on opposite sides along the X-axis direction. That is, the orthographic projection of the first display channel a1 on the first substrate 31 is located inside the orthographic projection of the second display channel a2 on the first substrate 31, and the orthographic projection of the second display channel a2 on the first substrate 31 is located inside the orthographic projection of the third display channel a3 on the first substrate 31.

[0085] The first placement channel b1, the second placement channel b2 and the third placement channel b3 are arranged in sequence along the X-axis direction, and the first placement channel b1, the second placement channel b2 and the third placement channel b3 are parallel to each other. The second placement channel b2 is spaced from the first placement channel b1, and the third placement channel b3 is spaced 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 in sequence and in parallel and spaced 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 the first placement channel b1 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 the second placement channel b2 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 the third placement channel b3 extends to the first substrate 31 in the opposite direction of the Z-axis. Wherein, the Z-axis direction is opposite to the opposite direction of the Z-axis.

[0086] The first drive channel c1, the second drive channel c2 and the third drive channel c3 are arranged in sequence along the opposite direction of the X-axis, and the first drive channel c1, the second drive channel c2 and the third drive channel c3 are parallel to each other. The second drive channel c2 is spaced from the first drive channel c1, and the third drive channel c3 is spaced from the second drive channel c2, that is, the first drive channel c1, the second drive channel c2 and the third drive channel c3 are arranged in sequence and in parallel and spaced along the opposite direction of the X-axis. The first drive channel c1 is connected to the side of the first display channel a1 facing the opposite direction of the X-axis, and the first drive channel c1 extends to the first substrate 31 in the opposite direction of the Z-axis. The second drive channel c2 is connected to the side of the second display channel a2 facing the opposite direction of the X-axis, and the second drive channel c2 extends to the first substrate 31 in the opposite direction of the Z-axis. The third drive channel c3 is connected to the side of the third display channel a3 facing the opposite direction of the X-axis, and the third drive channel c3 extends to the first substrate 31 in the opposite direction of the Z-axis. Wherein, 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 drive channel c1 on opposite sides along the X-axis direction, the second display channel a2 is connected to the second placement channel b2 and the second drive channel c2 on opposite sides along the X-axis direction, and the third display channel a3 is connected to the third placement channel b3 and the third drive channel c3 on opposite sides along the X-axis direction.

[0088] In an exemplary embodiment, the area of ​​the orthographic projection of the first display channel a1 in the Z-axis direction is larger 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 larger than the area of ​​the orthographic projection of the first drive 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 drive 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 larger than the area of ​​the orthographic projection of the second placement channel b2 in the Z-axis direction, the area of ​​the orthographic projection of the second display channel a2 in the Z-axis direction is larger than the area of ​​the orthographic projection of the second drive 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 drive 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 larger than the area of ​​the orthographic projection of the third placement channel b3 in the Z-axis direction, the area of ​​the orthographic projection of the third display channel a3 in the Z-axis direction is larger than the area of ​​the orthographic projection of the third drive 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 drive 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 the embodiment of the present application, the first ink 322 is disposed in the first display channel a1, the second ink 323 is disposed in the second display channel a2, and the third ink 324 is disposed in the third display channel a3. At least part of the first ink 322 can flow from the first display channel a1 to the first placement channel b1, at least part of the second ink 323 can flow from the second display channel a2 to the second placement channel b2, and at least part of the third ink 324 can flow from the third display channel a3 to the third display channel a3.

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

[0093] It should be noted that when the first ink 322 is spread over the entire first display channel a1, the first placement channel b1 may not have the first ink 322 or may have a small amount of the first ink 322. When the first ink 322 is spread over the entire first placement channel b1, the first display channel a1 may not have the first ink 322 or may have a small amount of the first ink 322.

[0094] When the second ink 323 is spread over the entire 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. When the second ink 323 is spread over the entire second placement channel b2, the second display channel a2 may have no second ink 323 or may have a small amount of second ink 323.

[0095] When the third ink 324 is spread over the entire third display channel a3, the third placement channel b3 may have no third ink 324 or may have a small amount of third ink 324. When the third ink 324 is spread over the entire third placement channel b3, the third display channel a3 may have no third ink 324 or may have a small amount of third ink 324.

[0096] It can be understood that when the first ink 322 is spread over the entire first display channel a1, the brightness of the first color light is maximum, and when the first ink 322 is spread over the entire first placement channel b1, the brightness of the first color light is minimum. 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] When the second ink 323 is spread over the entire second display channel a2, the brightness of the second color light is maximum, and when the second ink 323 is spread over the entire second placement channel b2, the brightness of the second color light is minimum. 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] When the third ink 324 is spread over the entire third display channel a3, the brightness of the third color light is maximum, and when the third ink 324 is spread over the entire third placement channel b3, the brightness of the third color light is minimum. 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 brightness of the second color light, and the brightness of the third color light. When the spreading area of ​​the first ink 322 in the first display channel a1 is the smallest, the first ink 322 is placed in 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. When the spreading area of ​​the second ink 323 in the second display channel a2 is the smallest, the second ink 323 is placed in the second placement channel b2, and the second ink 323 occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. When the spreading area of ​​the third ink 324 in the third display channel a3 is the smallest, the third ink 324 is placed in the third placement channel b3, and the third ink 324 occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. Compared with the prior art, when the inks are gathered together, the inks occupy a larger proportion of the opening area of ​​the sub-pixel area. In the display panel of the present 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 flow of the second ink 323, the flow of the third ink 324, the flow of the first driving liquid 325, the flow of the second driving liquid 326 and the flow of the third driving liquid 327 are not affected by gravity, so that the display stability performance of the display panel 30 is better.

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

[0102] The size of the second placement channel b2 should satisfy the following requirement: the capillary force between the wall surface of the second placement channel b2 and the second ink 323 can offset the gravity exerted on the second ink 323 .

[0103] The size of the second driving channel c2 should satisfy the requirement that the capillary force between the wall surface of the second driving channel c2 and the second driving liquid 326 can offset the gravity exerted on the second driving liquid 326 .

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

[0105] The size of the third placement channel b3 should satisfy the following requirement: the capillary force between the wall of the third placement channel b3 and the third ink 324 can offset the gravity exerted on the third ink 324 .

[0106] The size of the third driving channel c3 should satisfy the requirement that the capillary force between the wall surface of the third driving channel c3 and the third driving liquid 327 can offset the gravity exerted on the third driving liquid 327 .

[0107] In an exemplary embodiment, the first ink 322 may be any one of cyan ink, magenta ink, and yellow ink, the second ink 323 may be any one of cyan ink, magenta ink, and yellow ink, the third ink 324 may 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 different. For example, the first ink 322 may be a cyan ink, the second ink 323 may be a magenta ink, and the third ink 324 may be a yellow ink. Accordingly, the first color light is cyan light, the second color light is magenta light, and the third color light is yellow light.

[0108] In the embodiment of the present application, 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 part of the first driving liquid 325 can flow from the first driving channel c1 to the first display channel a1, at least part of the second driving liquid 326 can flow from the second driving channel c2 to the second display channel a2, and at least part 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 squeeze the first ink 322 to drive the first ink 322 to flow from the first display channel a1 to the first placement channel b1. The first driving liquid 325 can also form a negative pressure between the first driving liquid 325 and the first ink 322, so that the pressure in the first placement channel b1 is greater than the pressure in the first display channel a1, and then the first driving liquid 325 can drive the first ink 322 to flow from the first placement channel b1 to the first display channel a1 under the action of the pressure difference between the first placement channel b1 and the first display channel a1.

[0110] The second driving liquid 326 can squeeze the second ink 323 to drive the second ink 323 to flow from the second display channel a2 to the second placement channel b2. The second driving liquid 326 can also form a negative pressure between the second driving liquid 326 and the second ink 323, so that the pressure in the second placement channel b2 is greater than the pressure in the second display channel a2, and then 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 action of the pressure difference between the second placement channel b2 and the second display channel a2.

[0111] The third driving liquid 327 can squeeze the third ink 324 to drive the third ink 324 to flow from the third display channel a3 to the third placement channel b3. The third driving liquid 327 can also form a negative pressure between the third driving liquid 327 and the third ink 324, so that the pressure in the third placement channel b3 is greater than the pressure in the third display channel a3, and then the third driving liquid 327 can drive the third ink 324 to flow from the third placement channel b3 to the third display channel a3 under the action of the pressure difference between the third placement channel b3 and 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. Moreover, the first driving liquid 325, the second driving liquid 326, and the third driving liquid 327 are all transparent liquids.

[0113] It can be understood that, under the driving of the electric field, the first ink 322 can flow from the first display channel a1 to the first placement channel b1 and the first ink 322 can flow from the first placement channel b1 to the first display channel a1. Moreover, 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 drive the first ink 322 to flow from the first placement channel b1 to the first display channel a1.

[0114] Driven by the electric field, the second ink 323 can flow from the second display channel a2 to the second placement channel b2, and the second ink 323 can flow from the second placement channel b2 to the second display channel a2. Moreover, 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 drive the second ink 323 to flow from the second placement channel b2 to the second display channel a2.

[0115] Driven by the electric field, the third ink 324 can flow from the third display channel a3 to the third placement channel b3, and the third ink 324 can flow from the third placement channel b3 to the third display channel a3. Moreover, 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 drive the third ink 324 to flow from the third placement channel b3 to the third display channel a3.

[0116] Therefore, by setting a dual drive mode to drive the first ink 322 to flow, the flow speed of the first ink 322 is faster, that is, the first color light switches between light and dark display faster. By setting a dual drive mode to drive the second ink 323 to flow, the flow speed of the second ink 323 is faster, that is, the second color light switches between light and dark display faster. By setting a dual drive mode to drive the third ink 324 to flow, the flow speed of the third ink 324 is faster, that is, the third color light switches between light and dark display faster. This is conducive to improving the refresh rate of the display panel 30.

[0117] In the embodiment of the present application, the first hollow group d1 is at least opened 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 in the first hollow group d1, and the first driving electrode group 331 is used to drive the first ink 322 to flow, the second ink 323 to flow, and the third ink 324 to flow.

[0118] Specifically, the first hollow 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 arranged on the side of the first placement channel b1 facing the opposite direction of the X-axis, and the first receiving groove d11 is communicated with the first placement channel b1, that is, the first receiving groove d11 is arranged on the side of the first placement channel b1 facing away from the second placement channel b2, and the first receiving groove d11 is communicated with the first placement channel b1. The second receiving groove d12 is arranged on the side of the second placement channel b2 facing the opposite direction of the X-axis, and the second receiving groove d12 is communicated with the second placement channel b2, that is, the second receiving groove d12 is arranged on the side of the second placement channel b2 facing away from the third placement channel b3, and the second receiving groove d12 is communicated with the second placement channel b2. The third receiving groove d13 is arranged on the side of the third placement channel b3 facing the opposite direction of the X-axis, and the third receiving groove d13 is communicated with the third placement channel b3, that is, the third receiving groove d13 is arranged on the side of the third placement channel b3 facing the second placement channel b2, and the third receiving groove d13 is communicated with 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 direction, and the first receiving channel d14 is spaced from the third placement channel b3, that is, the first receiving channel d14 is opened on the side of the third placement channel b3 facing away from the third receiving groove d13, and the first receiving channel d14 is spaced 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 the first receiving groove d11, the second driving electrode e2 is disposed in the second receiving groove d12, the third driving electrode e3 is disposed in the third receiving groove d13, and the first common electrode f1 is disposed in the first receiving channel d14.

[0120] A first preset electric field is formed between the first driving electrode e1 and the first common electrode f1, and 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, and 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, and 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 the embodiment of the present application, the second hollow group d2 is at least opened 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 in the second hollow group d2.

[0124] Specifically, the second hollow group d2 includes a fourth accommodating groove d21, a fifth accommodating groove d22, a sixth accommodating groove d23 and a second accommodating channel d24. The fourth accommodating groove d21 is arranged on the side of the first driving channel c1 facing the X-axis direction, and the fourth accommodating groove d21 is communicated with the first driving channel c1, that is, the fourth accommodating groove d21 is arranged on the side of the first driving channel c1 facing away from the second driving channel c2, and the fourth accommodating groove d21 is communicated with the first driving channel c1. The fifth accommodating groove d22 is arranged on the side of the second driving channel c2 facing the X-axis direction, and the fifth accommodating groove d22 is communicated with the second driving channel c2, that is, the fifth accommodating groove d22 is arranged on the side of the second driving channel c2 facing away from the third driving channel c3, and the fifth accommodating groove d22 is communicated with the second driving channel c2. The sixth accommodating groove d23 is arranged on the side of the third driving channel c3 facing the X-axis direction, and the sixth accommodating groove d23 is communicated with the third driving channel c3, that is, the sixth accommodating groove d23 is arranged on the side of the third driving channel c3 facing the second driving channel c2, and the sixth accommodating groove d23 is communicated with the third driving channel c3. The second accommodating channel d24 is opened on the side of the third driving channel c3 facing the opposite direction of the X-axis, and the second accommodating channel d24 is spaced from the third driving channel c3, that is, the second accommodating channel d24 is opened on the side of the third driving channel c3 facing away from the sixth accommodating groove d23, and the second accommodating channel d24 is spaced 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, and 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, and 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, and 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] It can be understood that the first driving electrode group 331 and the second driving electrode group 332 are not arranged in the light emitting 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 the insulating layer 321 and the second driving electrode e2 in the second placement channel b2. The second driving liquid 326 contacts 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 hydrophobicity, so that the second ink 323 has better fluidity in the second display channel a2 and the second placement channel b2. The insulating layer 321 and the fifth driving electrode e5 have good hydrophobicity, so that the second driving liquid 326 has better fluidity in 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 the insulating layer 321 and the third driving electrode e3 in the third placement channel b3. The third driving liquid 327 contacts 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 hydrophobicity, so that the third ink 324 has better fluidity in the third display channel a3 and the third placement channel b3. The insulating layer 321 and the sixth driving electrode e6 have good hydrophobicity, so that the third driving liquid 327 has better fluidity in the third driving channel c3 and the third display channel a3.

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

[0135] In summary, the display panel 30 provided in the embodiment of the present application 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 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, and a plurality of third placement channels b3. One first ink 322, one second ink 323, one third ink 324, one first display channel a1, one first placement channel b1, one second placement channel b2, and one third placement channel b3 are located in one sub-pixel area 30a. In a sub-pixel 30a, the first display channel a1 is connected to the 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. In a sub-pixel 30a, the second display channel a2 is connected to the 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. In 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, and the orthographic projection of the third placement channel b3 in the light emitting direction of the display panel 30 is at least partially located within the orthographic projection of the third display channel a3 in the light emitting direction of the display panel 30. The first ink 322 is disposed in the first display channel a1, the second ink 323 is disposed in the second display channel a2, and the third ink 324 is disposed in the third display channel a3. Among them, at least part of the first ink 322 can flow from the first display channel a1 to the first placement channel b1, at least part of the second ink 323 can flow from the second display channel a2 to the second placement channel b2, and at least part 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 the first color light and reflect the first color light, the second ink 323 is used to convert the received ambient light into the second color light and reflect the second color light, and the third ink 324 is used to convert the received ambient light into the third color light and reflect the third color light.Therefore, when the spreading area of ​​the first ink 322 in the first display channel a1 is the smallest, the first ink 322 is contained in 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. When the spreading area of ​​the second ink 323 in the second display channel a2 is the smallest, the second ink 323 is contained in the second placement channel b2, and the second ink 323 occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. When the spreading area of ​​the third ink 324 in the third display channel a3 is the smallest, the third ink 324 is contained in the third placement channel b3, and the third ink 324 occupies a very small proportion of the opening area of ​​the sub-pixel area 30a. Compared with the prior art, when the inks are gathered together, the inks occupy a larger proportion of the opening area of ​​the sub-pixel area. In the display panel 30 of the present application, the first ink 322 is collected in the first placement channel b1, the second ink 323 is collected in the second placement channel b2, and the third ink 324 is collected in the third placement channel b3, so 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 increasing the opening ratio of the sub-pixel area 30a. In addition, the display panel 30 of the present application also has the advantages of simple structure and easy processing and manufacturing.

[0136] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0137] It should be understood that the application of this application is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments are implemented, and equivalent changes made according to the claims of this application still fall within the scope covered by 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 and a first ink, the insulating layer is provided with a plurality of first display channels and a plurality of first placement channels, and one of the first display channels and one of the first placement channels are located in one of the sub-pixel regions; In one of the sub-pixels, 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; wherein, the first ink is arranged in the first display channel, at least part of the first ink flows from the first display channel to the first placement channel, and the first ink is used to absorb ambient light.

2. The display panel according to claim 1, wherein: The insulating layer is further provided with a plurality of first hollow groups, one of the first hollow groups is located in one of the sub-pixel regions, and the first hollow groups are provided at two opposite sides of the first placement channel; The display panel also includes a plurality of first driving electrode groups, one of which is disposed 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 according to claim 1, wherein: The insulating layer is further provided with a plurality of first driving channels, one of the first driving channels is located in one of the sub-pixels, and a side of the first display channel facing away from the first placement channel is connected to the first driving channel; The display panel also includes a first driving liquid, which is disposed in the first driving channel and in contact with 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.

4. The display panel according to claim 3, wherein: The insulating layer is further provided with a plurality of second hollow groups, one of the second hollow groups is located in one of the sub-pixel regions, and the second hollow groups are provided at two opposite sides of the first driving channel; The display panel also includes a plurality of second driving electrode groups, one of the second driving electrode groups is disposed in one of the second hollow groups, 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, wherein 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, and one of the first display channels, one of the second display channels, one of the third display channels, one of the first placement channels, one of the second placement channels and one of the third placement channels are located in one of the sub-pixel regions; In one of the sub-pixels, 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 second 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; Among them, the first ink is arranged in the first display channel, the second ink is arranged in the second display channel, and 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 to convert the received ambient light into the first color light and reflect the first color light, the second ink is used to convert the received ambient light into the second color light and reflect the second color light, and the third ink is used to convert the received ambient light into the third color light and reflect the third color light.

6. The display panel according to claim 5, wherein: The insulating layer is further provided with a plurality of first hollow groups, one of the first hollow groups is located in one of the sub-pixel regions, and the first hollow groups are at least provided 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 includes a plurality of first driving electrode groups, one of the first driving electrode groups is disposed in the first hollow 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.

7. The display panel according to claim 5, wherein: The insulating layer is further provided with a plurality of first driving channels, a plurality of second driving channels and a plurality of third driving channels, one of the first driving channels, one of the second driving channels and one of the third driving channels are located in one of the sub-pixels, and a side of a first display channel facing away from the first placement channel is connected to the first driving channel, a side of a second display channel facing away from the second placement channel is connected to the second driving channel, and a side of a third display channel facing away from the third placement channel is connected to the third driving channel; The display panel further includes a first driving liquid, a second driving liquid and a third driving liquid, wherein 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; 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 according to claim 7, wherein: The insulating layer is further provided with a plurality of second hollow groups, one of the second hollow groups is located in one of the sub-pixel regions, and the second hollow groups are at least provided 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 includes a plurality of second driving electrode groups, one of the second driving electrode groups is disposed in one of the second hollow groups, and the second driving electrode group is used to drive the first driving liquid flow, the second driving liquid flow, and the third driving liquid flow.

9. The display panel according to any one of claims 5 to 8, characterized in that: The ratio of the volume of the first ink, the volume of the first placement channel, and the volume of the first driving liquid is 1:1:1, the ratio of the volume 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 ratio of the volume of the third ink, the volume of the third placement channel, and the volume of the third driving liquid is 1:1:

1.

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

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