Electronic paper display device and electronic equipment

Abstract

The invention relates to the technical field of display, and discloses an electronic paper display device, which comprises a top substrate, a bottom substrate, an electrophoresis layer and a barrier layer, a pixel electrode layer is arranged on the bottom substrate, the pixel electrode layer comprises a plurality of pixel units, each pixel unit comprises at least two sub-pixel electrode blocks, and the sub-pixel electrode blocks are arranged on the bottom substrate. The electrophoresis layer is filled with electrophoresis liquid and electrophoresis particles and is arranged between the top substrate and the bottom substrate, the blocking layer is arranged between the top substrate and the bottom substrate, and the blocking layer comprises a plurality of blocking walls which divide the electrophoresis layer into a plurality of containing parts; according to the electronic paper display device, the area between each sub-pixel electrode block and the top substrate is at least correspondingly provided with the two containing parts, and the at least two containing parts are arranged in the area, so that aggregation of electrophoretic liquid and electrophoretic particles in the area is effectively avoided, and the overall display effect of the electronic paper display device is improved. The invention further discloses electronic equipment with the electronic paper display device.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to an electronic paper display device and an electronic device. Background Art

[0002] Electronic paper displays have gradually become an important type of display product in our lives. Figure 1 and Figure 2 As shown, in the existing electronic paper display 1, a barrier wall 4 is usually arranged between the upper substrate 2 and the lower substrate 3 to support the upper substrate 2 and the lower substrate 3. At the same time, multiple barrier walls 4 are arranged between the pixel electrode blocks 5. The barrier walls 4 can limit the disordered flow of the electronic paste 6. Due to the different sizes of products, for the electronic paper display 1 using larger pixel electrode blocks, the electronic paste 6 between the single pixel electrode blocks 5 forms aggregates inside, which will affect the overall display effect of the electronic paper display 1 in the long run.

[0003] Therefore, how to improve the aggregation of electronic paste in electronic paper displays and enhance the overall display effect of electronic paper displays has become an urgent issue to be solved in the industry. Summary of the invention

[0004] The present invention aims to solve at least one of the problems in the background technology. To this end, the present invention provides an electronic paper display device and an electronic device, wherein the electronic paper display device is provided with a plurality of accommodating parts in a sub-pixel electrode block, thereby effectively limiting the aggregation of electrophoretic liquid and electrophoretic particles, thereby improving the overall display effect.

[0005] According to an embodiment of the first aspect of the present invention, an electronic paper display device includes a top substrate, a bottom substrate, an electrophoretic layer and a barrier layer, wherein a pixel electrode layer is arranged on the bottom substrate, the pixel electrode layer includes a plurality of pixel units, and each of the pixel units includes at least two sub-pixel electrode blocks; the electrophoretic layer is arranged between the top substrate and the bottom substrate, and the electrophoretic layer is filled with electrophoretic liquid and electrophoretic particles; the barrier layer is arranged between the top substrate and the bottom substrate, and the barrier layer includes a plurality of barrier walls, and the plurality of barrier walls divide the electrophoretic layer into a plurality of receiving portions filled with the electrophoretic liquid and the electrophoretic particles, wherein at least two of the receiving portions are correspondingly arranged in the area between each of the sub-pixel electrode blocks and the top substrate.

[0006] By providing at least two accommodating portions in the area between a single sub-pixel electrode block and the top substrate, aggregation of electrophoretic liquid and electrophoretic particles in the area between the single sub-pixel electrode block and the top substrate is effectively avoided, thereby improving the overall display effect of the electronic paper display device.

[0007] According to another embodiment of the present invention, there are gaps between the plurality of sub-pixel electrode blocks, and the barrier walls are disposed in the gaps.

[0008] According to another embodiment of the present invention, the barrier wall includes a first barrier wall disposed in the gap and a second barrier wall disposed on the sub-pixel electrode block.

[0009] According to another embodiment of the present invention, a plurality of the first barrier walls have a same first height, a plurality of the second barrier walls have a same second height, and the first height and the second height are different.

[0010] According to another embodiment of the present invention, the first height of the first barrier wall is 5-50 μm, and the second height of the second barrier wall is 5-20 μm.

[0011] According to another embodiment of the present invention, a ratio of the second height of the second barrier wall to the first height of the first barrier wall is less than 50%.

[0012] According to another embodiment of the present invention, the thickness of the plurality of first barrier walls is the same, the thickness of the plurality of second barrier walls is the same, and the thickness of the first barrier walls is greater than the thickness of the second barrier walls.

[0013] According to another embodiment of the present invention, a connection portion is provided between a portion of the first barrier wall and / or the second barrier wall and the top substrate, and two ends of the connection portion are respectively connected to the top substrate and the barrier wall.

[0014] According to another embodiment of the present invention, at least some of the receiving portions have the same volume.

[0015] An electronic device according to an embodiment of a second aspect of the present invention includes any of the above-mentioned electronic paper display devices.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention discloses an electronic paper display device, comprising a top substrate, a bottom substrate, an electrophoretic layer and a barrier layer, wherein a pixel electrode layer is arranged on the bottom substrate, the pixel electrode layer comprises a plurality of pixel units, each pixel unit comprises at least two sub-pixel electrode blocks; the electrophoretic layer is arranged between the top substrate and the bottom substrate, and the electrophoretic layer is filled with electrophoretic liquid and electrophoretic particles; the barrier layer is arranged between the top substrate and the bottom substrate, the barrier layer comprises a plurality of barrier walls, and the plurality of barrier walls divide the electrophoretic layer into a plurality of receiving parts filled with electrophoretic liquid and electrophoretic particles, wherein at least two receiving parts are arranged correspondingly between each sub-pixel electrode block and the top substrate. In this solution, by arranging at least two receiving parts in the area between a single sub-pixel electrode block and the top substrate, the electrophoretic liquid and the electrophoretic particles in the area between the single sub-pixel electrode block and the top substrate are effectively prevented from aggregating, thereby improving the overall display effect of the electronic paper display device.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0020] Figure 1 is a schematic diagram of an electronic paper display in the prior art;

[0021] Figure 2 is a cross-sectional schematic diagram of an electronic paper display in the prior art;

[0022] Figure 3 A schematic diagram of an embodiment of an electronic paper display device provided in the present application;

[0023] Figure 4 A cross-sectional schematic diagram of an embodiment of the electronic paper display device provided in the present application;

[0024] Figure 5 A cross-sectional schematic diagram of another embodiment of the electronic paper display device provided by the present application;

[0025] Figure 6 A cross-sectional schematic diagram of another embodiment of the electronic paper display device provided by the present application;

[0026] Figure 7 A schematic diagram of another embodiment of the electronic paper display device provided by the present application;

[0027] Figure 8 A schematic diagram of an embodiment of an electronic device provided by the present application;

[0028] The meanings of the marks in the figure are:

[0029] 1. Electronic paper display; 2. Upper substrate; 3. Lower substrate; 4. Blocking wall;

[0030] 5. Pixel electrode block; 6. Electronic paste;

[0031] 10. Electronic equipment;

[0032] 100. Electronic paper display device;

[0033] 110, top substrate; 111, base substrate; 112, common electrode layer;

[0034] 120, bottom substrate; 121, pixel electrode layer; 1211, sub-pixel electrode block; 1212, gap;

[0035] 130, electrophoretic layer; 131, electrophoretic liquid; 132, electrophoretic particles;

[0036] 140, barrier layer; 141, barrier wall; 1411, first barrier wall; 1412, second barrier wall;

[0037] 142. Accommodating portion; 143. Connecting portion. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it is to be understood that a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0040] In the description of the present invention, 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 a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] To illustrate the electronic paper display device and electronic device provided by the present application, the following is a detailed description in conjunction with the accompanying drawings and the textual description of the embodiments.

[0042] Reference below Figure 3-Figure 7 An electronic paper display device 100 according to an embodiment of the first aspect of the present invention is described. Figure 3-Figure 7 As shown, the electronic paper display device 100 includes a top substrate 110, a bottom substrate 120, an electrophoretic layer 130 and a barrier layer 140. Further, the top substrate 110 is arranged corresponding to the bottom substrate 120, and a pixel electrode layer 121 is arranged on the bottom substrate 120. Specifically, the pixel electrode layer 121 includes a plurality of pixel units (not shown in the figure), each pixel unit includes at least two sub-pixel electrode blocks 1211, and each sub-pixel electrode block 1211 corresponds to a different color. Further, the electrophoretic layer 130 is arranged between the top substrate 110 and the bottom substrate 120, and the electrophoretic liquid 131 and electrophoretic particles 132 are filled in the electrophoretic layer 130. The electrophoretic particles 132 are arranged under the drive of the electric field, and then specific imaging is achieved according to the arrangement of the electrophoretic particles 132. Further, the barrier layer 140 is arranged at The barrier layer 140 is arranged between the top substrate 110 and the bottom substrate 120, that is, within the electrophoretic layer 130. Specifically, the barrier layer 140 includes a plurality of barrier walls 141, and the plurality of barrier walls 141 divide the electrophoretic layer 130 into a plurality of receiving portions 142. Each receiving portion 142 is filled with an electrophoretic liquid 131 and electrophoretic particles 132. At least two receiving portions 142 are correspondingly arranged in the area between each sub-pixel electrode block 1211 and the top substrate 110. This solution effectively avoids the aggregation of the electrophoretic liquid 131 and the electrophoretic particles 132 in the area between a single sub-pixel electrode block 1211 and the top substrate 110 by providing at least two receiving portions 142 in the area between a single sub-pixel electrode block 1211 and the top substrate 110, thereby improving the overall display effect of the electronic paper display device 100.

[0043] It should be noted that a single container 142 may be a completely sealed structure, that is, the electrophoretic liquid 131 and the electrophoretic particles 132 in the container 142 cannot be exchanged with the electrophoretic liquid 131 and the electrophoretic particles 132 outside the container 142, or a single container 142 may be a partially sealed structure, that is, the electrophoretic liquid 131 and the electrophoretic particles 132 in the container 142 can be exchanged with the electrophoretic liquid 131 and the electrophoretic particles 132 outside the container 142, but the flow amplitude of the electrophoretic liquid 131 and the electrophoretic particles 132 is small, and there will be no disorderly flow of the electrophoretic liquid 131 and the electrophoretic particles 132 between multiple containers 142, or there may be both a completely sealed structure for some containers 142 and a partially sealed structure for some containers 142, for example, the barrier wall 141 outside a single sub-pixel electrode block 1211 The defined accommodating portion 142 is completely closed, and the accommodating portion 142 defined by the blocking wall 141 arranged on a single sub-pixel electrode block 1211 is partially closed, that is, the electrophoretic liquid 131 and the electrophoretic particles 132 filled in the area between the sub-pixel electrode block 1211 and the top substrate 110 can partially flow between the multiple accommodating portions 142 arranged in the area between the sub-pixel electrode block 1211 and the top substrate 110, and at the same time, the electrophoretic liquid 131 and the electrophoretic particles 132 filled in the area between different sub-pixel electrode blocks 1211 and the top substrate 110 cannot be exchanged with the electrophoretic liquid 131 and the electrophoretic particles 132 filled in the area between other sub-pixel electrode blocks 1211 and the top substrate 110. It can be understood that the sealing condition of the accommodating portion 142 can be determined according to different usage scenarios and is not specifically limited here.

[0044] It should be noted that at least two accommodating portions 142 are correspondingly provided in the area between each sub-pixel electrode block 1211 and the top substrate 110, that is, at least one blocking wall 141 is provided on each sub-pixel electrode block 1211, so that at least two accommodating portions 142 are correspondingly provided in the area between each sub-pixel electrode block 1211 and the top substrate 110, so that the electrophoretic liquid 131 and the electrophoretic particles 132 corresponding to each sub-pixel electrode block 1211 in the vertical direction can be distributed between the multiple accommodating portions 142 provided in the area between the sub-pixel electrode block 1211 and the top substrate 110, thereby avoiding the aggregation of the corresponding electrophoretic liquid 131 and the electrophoretic particles 132 in the area between a single sub-pixel electrode block 1211 and the top substrate 110.

[0045] It should be noted that at least one blocking wall 141 is arranged on each sub-pixel electrode block 1211. It can be understood that the arrangement of multiple blocking walls 141 on a specific sub-pixel electrode block 1211 can be uniformly arranged, that is, the multiple receiving parts 142 in the area between a specific sub-pixel electrode block 1211 and the top substrate 110 have the same volume, or the arrangement of multiple blocking walls 141 on a specific sub-pixel electrode block 1211 can be partially uniformly arranged, that is, some receiving parts 142 in the area between a specific sub-pixel electrode block 1211 and the top substrate 110 have the same volume, and some receiving parts 142 have different volumes.

[0046] It should be noted that the arrangement of the multiple blocking walls 141 on different sub-pixel electrode blocks 1211 can be set in the same manner, that is, the multiple receiving parts 142 in the area between the multiple sub-pixel electrode blocks 1211 and the top substrate 110 all have the same volume, or, the arrangement of the multiple blocking walls 141 on the multiple sub-pixel electrode blocks 1211 can be partially evenly distributed, that is, some of the receiving parts 142 in the area between the multiple sub-pixel electrode blocks 1211 and the top substrate 110 have the same volume, and some of the receiving parts 142 have different volumes.

[0047] It should be noted that, multiple barrier walls 141 may have the same height, or, multiple barrier walls 141 may have different heights, or, some barrier walls 141 may have the same height, and the remaining barrier walls 141 have different heights. For example, some barrier walls 141 are arranged between multiple sub-pixel electrode blocks 1211, and this part of the barrier wall 141 is in direct contact with the top substrate 110 and the bottom substrate 120, and the remaining barrier wall 141 is not in direct contact with the top substrate 110 and the bottom substrate 120. In other words, the barrier wall 141 can be divided into several different heights. It can be understood that the height of the barrier wall 141 can be determined according to different usage scenarios and is not specifically limited here.

[0048] It should be noted that multiple barrier walls 141 may have the same thickness, or multiple barrier walls 141 may have different thicknesses, or some barrier walls 141 may have the same thickness and the remaining parts may have different thicknesses. It can be understood that the thickness of the barrier wall 141 may be determined according to different usage scenarios and is not specifically limited here.

[0049] It should be noted that the top substrate 110 may include a base substrate 111 and a common electrode layer 112, in which case the common electrode layer 112 is disposed on the base substrate 111, or the top substrate 110 may be the common electrode layer 112. It is understood that an electric field is generated between the common electrode layer 112 and the pixel electrode layer 121, thereby driving the electrophoretic particles 132 to achieve arranged imaging.

[0050] It should be noted that a single sub-pixel electrode block 1211 can be a regular square or rectangle. Furthermore, the width or the shortest side length of a single sub-pixel electrode block 1211 is greater than 60 μm. It can be understood that by setting the size of a single sub-pixel electrode block 1211 to have a width or the shortest side length of greater than 60 μm, it can be ensured that the area between each sub-pixel electrode block 1211 and the top substrate 110 is large enough. After two or more accommodating portions 142 are set in the area, there is still enough space between each accommodating portion 142, so that the electrophoretic liquid 131 and the electrophoretic particles 132 can fully move, thereby achieving normal arrangement and imaging. Preferably, the single sub-pixel electrode block 1211 is a square with a side length ranging from 60 to 500 μm.

[0051] It should be noted that the bottom of the blocking wall 141 can be set on the bottom substrate 120, or the bottom of the blocking wall 141 can be set on the top substrate 110. It can be understood that whether the blocking wall 141 is set on the top substrate 110 or the bottom substrate 120 can be determined according to different usage scenarios and is not specifically limited here.

[0052] According to one embodiment of the present invention, Figure 4-Figure 6 As shown, there are gaps 1212 between the multiple sub-pixel electrode blocks 1211, that is, there is no direct contact between any two adjacent sub-pixel electrode blocks 1211. Furthermore, barrier walls 141 are provided in the gaps 1212 between all the sub-pixel electrode blocks 1211. In other words, by providing a barrier wall 141 between any two adjacent sub-pixel electrode blocks 1211, the electrophoretic fluid 131 and the electrophoretic particles 132 between the two adjacent sub-pixel electrode blocks 1211 are isolated, thereby maintaining the electrophoretic fluid 131 and the electrophoretic particles 132 corresponding to a single sub-pixel electrode block 1211 at a certain number, and avoiding the mutual interference between the electrophoretic fluid 131 and the electrophoretic particles 132 between the sub-pixel electrode blocks 1211 presenting different colors, thereby ensuring the imaging effect.

[0053] It should be noted that, in the present embodiment, the barrier wall 141 arranged in the gap 1212 between the sub-pixel electrode blocks 1211 can directly abut against the top substrate 110 and the bottom substrate 120, thereby avoiding the exchange of the corresponding electrophoretic liquid 131 and electrophoretic particles 132 inside a single sub-pixel electrode block 1211 with the external electrophoretic liquid 131 and electrophoretic particles 132, avoiding crosstalk, and thus ensuring the imaging effect.

[0054] It should be noted that, in some other embodiments, the barrier wall 141 arranged in the gap 1212 between the sub-pixel electrode blocks 1211 may not abut against the top substrate 110 or the bottom substrate 120. That is to say, by providing a small opening on the barrier wall 141, the electrophoretic liquid 131 and electrophoretic particles 132 inside the area between a single sub-pixel electrode block 1211 and the top substrate 110 can be allowed to exchange with the electrophoretic liquid 131 and electrophoretic particles 132 outside to a certain extent, but the flow amplitude of the electrophoretic liquid 131 and electrophoretic particles 132 in this area is not large, and will not affect the overall imaging.

[0055] According to one embodiment of the present invention, Figure 5 and Figure 7 As shown, the barrier wall 141 includes a first barrier wall 1411 arranged in the gap 1212 and a second barrier wall 1412 arranged on the sub-pixel electrode block 1211. It can be understood that since the first barrier wall 1411 arranged in the gap 1212 needs to limit the internal electrophoretic liquid 131 and electrophoretic particles 132 from communicating with the outside world, the first barrier wall 1411 and the second barrier wall 1412 arranged on the sub-pixel electrode block 1211 can have different shapes and sizes, so as to meet more usage scenarios.

[0056] According to one embodiment of the present invention, Figure 3 and Figure 7 As shown, multiple first barrier walls 1411 have the same first height, and multiple second barrier walls 1412 have the same second height. Specifically, the first height is different from the second height. It can be understood that since the first barrier wall 1411 and the second barrier wall 1412 are arranged at different positions, the first barrier wall 1411 located at the gap 1212 needs to play a supporting and supporting role, while the second barrier wall 1412 arranged on the sub-pixel electrode block 1211 plays the role of separating the electrophoretic liquid 131 and the electrophoretic particles 132 in the area between the sub-pixel electrode block 1211 and the top substrate 110. Therefore, according to different effects achieved, the first barrier wall 1411 and the second barrier wall 1412 can be set to two different heights to meet different needs.

[0057] According to one embodiment of the present invention, Figure 7As shown, the first height of the first barrier wall 1411 is in the range of 5-50 μm, and the second height of the second barrier wall 1412 is in the range of 5-20 μm. Furthermore, the first height of the first barrier wall 1411 is greater than the second height of the second barrier wall 1412. It can be understood that since the first barrier wall 1411 disposed in the gap 1212 needs to limit the internal electrophoretic liquid 131 and the electrophoretic particles 132 from communicating with the outside world, the first height of the first barrier wall 1411 needs to be set to be greater than the second height of the second barrier wall 1412. For example, the first height of the first barrier wall 1411 is 10 μm, and the second height of the second barrier wall 1412 is 5 μm, or the first height of the first barrier wall 1411 is 15 μm, and the second height of the second barrier wall 1412 is 8μm, or, the first height of the first barrier wall 1411 is 20μm, and the second height of the second barrier wall 1412 is 10μm, or, the first height of the first barrier wall 1411 is 25μm, and the second height of the second barrier wall 1412 is 15μm, or, the first height of the first barrier wall 1411 is 28μm, and the second height of the second barrier wall 1412 is 18μm, or, the first height of the first barrier wall 1411 is 30μm, and the second height of the second barrier wall 1412 is 20μm, or, the first height of the first barrier wall 1411 is 40μm, and the second height of the second barrier wall 1412 is 30μm, or, the first height of the first barrier wall 1411 is 50μm, and the second height of the second barrier wall 1412 is 40μm.

[0058] According to one embodiment of the present invention, Figure 7As shown, the ratio of the second height of the second barrier wall 1412 to the first height of the first barrier wall 1411 is less than 50%. It should be understood that the ratio of the first height of the first barrier wall 1411 to the second height of the second barrier wall 1412 needs to be set within a reasonable range, so as to facilitate production while ensuring imaging. For example, the first height of the first barrier wall 1411 is 20 μm, and the second height of the second barrier wall 1412 is 10 μm. At this time, the ratio of the first height of the first barrier wall 1411 to the second height of the second barrier wall 1412 is 0.5, or the first height of the first barrier wall 1411 is 20 μm, and the second height of the second barrier wall 1412 is 10 μm. The second height of the wall 1412 is 8μm, at this time, the ratio of the first height of the first barrier wall 1411 to the second height of the second barrier wall 1412 is 0.4, or, the first height of the first barrier wall 1411 is 20μm, and the second height of the second barrier wall 1412 is 5μm, at this time, the ratio of the first height of the first barrier wall 1411 to the second height of the second barrier wall 1412 is 0.25, or, the first height of the first barrier wall 1411 is 20μm, and the second height of the second barrier wall 1412 is 4μm, at this time, the ratio of the first height of the first barrier wall 1411 to the second height of the second barrier wall 1412 is 0.2.

[0059] According to one embodiment of the present invention, Figure 5 and Figure 7 As shown, the thickness of multiple first barrier walls 1411 is the same, and the thickness of multiple second barrier walls 1412 is the same. Further, the thickness of the first barrier walls 1411 is greater than the thickness of the second barrier walls 1412. It can be understood that since the first barrier walls 1411 and the second barrier walls 1412 are arranged at different positions, the functions they play are also different. Therefore, the first barrier walls 1411 and the second barrier walls 1412 can be set to two different thicknesses.

[0060] It should be noted that, in the present embodiment, the thicknesses of the plurality of first barrier walls 1411 are the same, that is, by setting the plurality of first barrier walls 1411 to the same thickness, production and manufacturing are facilitated. It is understandable that, in some other embodiments, the thicknesses of some of the first barrier walls 1411 may be the same, while the thicknesses of other parts may be different. For example, the thickness of the outermost first barrier wall 1411 is set to the first thickness, and the thickness of the remaining first barrier walls 1411 is set to the second thickness, and the first thickness is greater than the second thickness. It is understandable that the thicknesses of the plurality of first barrier walls 1411 may be determined according to different usage scenarios, and are not specifically limited herein.

[0061] It should be noted that, in the present embodiment, the thicknesses of the plurality of second barrier walls 1412 are the same, that is, by setting the plurality of second barrier walls 1412 to the same thickness, production and manufacturing are facilitated. It can be understood that, in some other embodiments, the thicknesses of some of the second barrier walls 1412 can be set to be the same, while the thicknesses of other parts can be different. For example, the thickness of the outermost second barrier wall 1412 is set to the third thickness, and the remaining second barrier walls 1412 are set to the fourth thickness, and the third thickness is different from the fourth thickness. It can be understood that the thicknesses of the plurality of second barrier walls 1412 can be determined according to different usage scenarios, and are not specifically limited here.

[0062] According to one embodiment of the present invention, Figure 7 As shown, a connecting portion 143 is provided between part of the first barrier wall 1411 and / or the second barrier wall 1412 and the top substrate 110, and two ends of the connecting portion 143 are respectively connected to the top substrate 110 and the barrier wall 141. It can be understood that the bottom of the part of the first barrier wall 1411 and / or the second barrier wall 1412 is connected to the bottom substrate 120, and the top is not in contact with the top substrate 110. At this time, the electrophoretic liquid 131 and the electrophoretic particles 132 can flow between different accommodating portions 142. In order to further limit the flow of the electrophoretic liquid 131 and the electrophoretic particles 132 between multiple sub-pixel electrode blocks 1211, a connecting portion 143 can be provided on the part of the first barrier wall 1411 and / or the second barrier wall 1412, and the flow of the electrophoretic liquid 131 and the electrophoretic particles 132 can be further limited by the connecting portion 143, thereby improving the overall display effect.

[0063] It should be noted that the shape and size of the connection portion 143 can be selected according to different usage scenarios. For example, the connection portion 143 can be in the shape of a cylinder, a cuboid, a cube, or a truncated cone.

[0064] According to one embodiment of the present invention, Figure 6 As shown, at least some of the receiving portions 142 have the same volume. It can be understood that by arranging barrier walls 141 of different sizes and dimensions, a plurality of receiving portions 142 with different volume sizes can be generated. For example, all barrier walls 141 are evenly distributed. In this case, all the receiving portions 142 have the same volume. It can be understood that by evenly distributing a plurality of barrier walls 141, production can be facilitated, and production costs and time can be saved.

[0065] It should be noted that in some other embodiments, the plurality of barrier walls 141 are symmetrically arranged, in which case the mutually symmetrical receiving parts 142 have the same volume, or all barrier walls 141 are irregularly arranged, in which case the volumes of all receiving parts 142 are different. It is understandable that the arrangement of the plurality of receiving parts 142 can be determined according to different usage scenarios and is not specifically limited here.

[0066] Reference below Figure 8 An electronic device 10 according to an embodiment of the second aspect of the present invention is described. Figure 8 As shown, the electronic device 10 includes an electronic paper display device 100, which effectively avoids the aggregation of the electrophoretic liquid 131 and the electrophoretic particles 132 in the area between the single sub-pixel electrode block 1211 and the top substrate 110 by providing at least two accommodating portions 142 in the area between the single sub-pixel electrode block 1211 and the top substrate 110, thereby improving the overall display effect of the electronic paper display device 100.

[0067] The electronic paper display device and electronic device provided above for this application are preferred embodiments and should not be construed as limiting the scope of protection of the present application. Those skilled in the art should be aware that various improvements or replacements may be made without departing from the concept of this application, and all improvements or replacements should be within the scope of protection of the present application, that is, the scope of protection of the present application should be based on the claims.

[0068] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

Claims

1. An electronic paper display device, characterized in that: Included are: top substrate; A bottom substrate, on which a pixel electrode layer is disposed, the pixel electrode layer includes a plurality of pixel units, and each of the pixel units includes at least two sub-pixel electrode blocks; An electrophoretic layer, the electrophoretic layer is disposed between the top substrate and the bottom substrate, and the electrophoretic layer is filled with an electrophoretic liquid and electrophoretic particles; A barrier layer, wherein the barrier layer is arranged between the top substrate and the bottom substrate, and the barrier layer includes a plurality of barrier walls, and the plurality of barrier walls divide the electrophoretic layer into a plurality of receiving portions filled with the electrophoretic liquid and the electrophoretic particles, wherein at least two receiving portions are correspondingly arranged in the area between each sub-pixel electrode block and the top substrate.

2. The electronic paper display device according to claim 1, characterized in that: There are gaps between the plurality of sub-pixel electrode blocks, and the blocking walls are arranged in the gaps.

3. The electronic paper display device according to claim 2, characterized in that: The barrier wall includes a first barrier wall arranged in the gap and a second barrier wall arranged on the sub-pixel electrode block.

4. The electronic paper display device according to claim 3, characterized in that: The plurality of first barrier walls have the same first height, the plurality of second barrier walls have the same second height, and the first height and the second height are different.

5. The electronic paper display device according to claim 4, characterized in that: The first height of the first barrier wall is 5-50 μm, and the second height of the second barrier wall is 5-20 μm.

6. The electronic paper display device according to claim 5, characterized in that: A ratio of the second height of the second barrier wall to the first height of the first barrier wall is less than 50%.

7. The electronic paper display device according to claim 3, characterized in that: The thickness of the plurality of first barrier walls is the same, the thickness of the plurality of second barrier walls is the same, and the thickness of the first barrier walls is greater than the thickness of the second barrier walls.

8. The electronic paper display device according to claim 3, characterized in that: A connecting portion is provided between a portion of the first barrier wall and / or the second barrier wall and the top substrate, and two ends of the connecting portion are respectively connected to the top substrate and the barrier wall.

9. The electronic paper display device according to claim 1, wherein: At least some of the receiving portions have the same volume.

10. An electronic device, characterized in that: The electronic paper display device comprises any one of claims 1-9.

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