Display panel and display device

Abstract

The application relates to a display panel and a display device. Pixel units of the display panel are electrically connected with scanning lines and data lines respectively. Each pixel unit comprises a bottom electrode, a top electrode and a pixel switch. The top electrode and the bottom electrode are arranged in a spaced manner. The data line is electrically connected with the pixel switch. The scanning line is electrically connected with the pixel switch and the bottom electrode. Each top electrode is provided with a plurality of hollow areas in the region corresponding to the data line, the scanning line and the pixel switch. In the display panel, a plurality of hollow areas are formed in the top electrode layer, so that the load on the data line and the scanning line can be reduced, the power consumption of the display panel is reduced, and the display effect of the whole display device is further improved.

Description

Technical Field

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

[0002] Electronic paper (EC) displays utilize a medium solution with a specific viscosity, where colored charged particles are uniformly dispersed. An electric field causes these particles to undergo electrophoretic motion, producing color. The images are displayed by reflecting ambient light from these colored charged particles, achieving a display effect similar to ordinary paper. Furthermore, ECD displays offer significantly lower power consumption compared to other types of display devices. Therefore, the application of ECD displays is becoming increasingly widespread.

[0003] Existing electronic paper display structures typically include: display electrodes, pixel electrodes, and microcapsules containing colored charged particles located between the display electrodes and pixel electrodes. By applying different voltages to the pixel electrodes, the colored charged particles undergo different electrophoretic movements, thereby displaying different colors on the electronic paper display structure.

[0004] However, for existing electronic paper display devices, how to reduce their power consumption and extend their battery life is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a display panel and a display device, which can reduce the load on the data lines and scan lines by forming multiple hollow areas in the top electrode layer, thereby reducing the power consumption of the display panel and further improving the display effect of the entire display device.

[0006] In a first aspect, this application provides a display panel, the display panel including multiple data lines, multiple scan lines and multiple pixel units arranged in an array, the pixel units being electrically connected to the scan lines and the data lines respectively, each pixel unit including a top electrode, a bottom electrode and a pixel switch, the top electrode and the bottom electrode being spaced apart, the data lines being electrically connected to the pixel switch, the scan lines being electrically connected to the pixel switch and the bottom electrode, each top electrode having multiple cutout areas in the area corresponding to the data lines, the scan lines and the pixel switch respectively.

[0007] In some embodiments, the plurality of cutout areas include a plurality of first cutout areas, a plurality of second cutout areas, and a plurality of third cutout areas. The first cutout area is set at the position of the top electrode corresponding to the data line, the second cutout area is set at the position of the top electrode corresponding to the scan line, and the third cutout area is set at the position of the top electrode corresponding to the pixel switch.

[0008] In some embodiments, the display panel further includes multiple capsules, a common electrode line, a common electrode, and a display electrode. The top electrode is disposed at a predetermined distance from one side of the bottom electrode. The multiple capsules are disposed between the top electrode and the bottom electrode. Each capsule encapsulates multiple first charged particles, multiple second charged particles, and a transparent dispersion medium, which suspends the first and second charged particles inside the capsule. The display electrode includes a first display electrode and a second display electrode, which are electrically connected to provide a bottom voltage to the bottom electrode. The common electrode line is electrically connected to the common electrode to transmit the common electrode voltage to the common electrode.

[0009] In some embodiments, the display panel further includes a substrate, a first metal layer, an insulating layer, a second metal layer, a protective layer, a bottom electrode layer, and a top electrode layer. The first metal layer is disposed on a portion of the substrate for arranging the scan lines and the common electrode. The insulating layer is disposed on the substrate and the side of the first metal layer opposite to the substrate. The second metal layer is disposed on a portion of the insulating layer opposite to the first metal layer for arranging the data lines and forming the pixel switch. The protective layer is disposed on the side of the insulating layer opposite to the substrate and the side of the second metal layer opposite to the insulating layer. The bottom electrode layer is disposed on a portion of the protective layer opposite to the second metal layer for forming a plurality of bottom electrodes. The bottom electrode layer and the second metal layer also form the display electrode. The top electrode layers are spaced apart on the side of the bottom electrode layer opposite to the protective layer for arranging the top electrodes.

[0010] In some embodiments, the display panel further includes a channel layer and an interface layer, wherein the channel layer is disposed on a portion of the insulating layer opposite to the first metal layer, and the interface layer is disposed on a portion of the channel layer opposite to the insulating layer. The channel layer is used to form a channel for the pixel switch, and the interface layer is used to reduce the interface potential difference. The protective layer is disposed on the side of the second metal layer opposite to the insulating layer, the side of the interface layer opposite to the channel layer, and the area of ​​the interface layer not covering the channel layer.

[0011] In some embodiments, the size of the first hollow area is 8μm to 12μm, the size of the second hollow area is 8μm to 12μm, and the size of the third hollow area is 30μm to 50μm.

[0012] Secondly, this application provides a display device, which includes a display driving circuit and the aforementioned display panel. The display driving circuit controls the bottom electrode of the display panel to be at different voltage values, so that the electric field magnitudes formed by the top electrode and the bottom electrode are different, and the display panel displays an image.

[0013] In some embodiments, the top electrode layer includes a plurality of top electrodes arranged in an array, and the plurality of top electrodes are electrically connected to each other.

[0014] In some embodiments, the top electrode layer includes a plurality of top electrodes arranged in an array, with the plurality of top electrodes in each row electrically connected to each other, and the outermost top electrode in each row electrically connected to the display driving circuit, wherein the top voltage output by the display driving circuit is transmitted to the plurality of top electrodes.

[0015] In some embodiments, the top electrode layer includes a plurality of top electrodes arranged in an array, the plurality of top electrodes in each row of the top electrode layer are electrically connected to each other, the plurality of top electrodes in the outermost column are electrically connected to each other, and one of the top electrodes in the outermost column is electrically connected to a display driving circuit, and the top voltage output by the display driving circuit is transmitted to the plurality of top electrodes.

[0016] In summary, in the display panel and display device of this application, by hollowing out the top electrode layer and forming multiple first hollow areas, multiple second hollow areas, and multiple third hollow areas in the area corresponding to the data lines, the scan lines, and the pixel switches, the load on the data lines and the scan lines can be reduced, thereby reducing the power consumption of the display panel and further improving the display effect of the entire display device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a display panel disclosed in an embodiment of this application;

[0019] Figure 2 for Figure 1 The diagram shows a partial structural schematic of the display panel.

[0020] Figure 3 for Figure 2 The diagram shows a schematic of the layer structure of the display panel along AA.

[0021] Figure 4 for Figure 2 The diagram shows a schematic of the layer structure of the display panel along BB.

[0022] Figure 5 for Figure 2 The diagram shows the layer structure of the display panel along CC.

[0023] Figure 6 for Figure 2 A schematic diagram of the first structure of the top electrode layer in the display panel shown;

[0024] Figure 7 for Figure 2 The diagram shows a second structural representation of the top electrode layer in the display panel.

[0025] Figure 8 for Figure 2 The diagram shows a third structural representation of the top electrode layer in the display panel.

[0026] Figure 9 for Figure 2 The diagram shows a fourth structure of the top electrode layer in the display panel.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100 - Display panel; 5 - Bottom electrode; 1 - Top electrode; 300 - Frame; 220 - Capsule; 221 - First charged particle; 222 - Second charged particle; 224 - Transparent dispersion medium; S1~S3 - Optical path; 2 - Data line; 3 - Common electrode line; 4 - Scan line; 6 - Pixel switch; 7 - Common electrode; 8 - Display electrode; 8a - First display electrode; 8b - Second display electrode; 10 - Pixel unit; 11 - First cutout area; 13 - Second cutout area; 15 - Third cutout area; 21 - Substrate; 22 - First metal layer; 23 - Insulating layer; 24 - Channel layer; 25 - Interface layer; 26 - Second metal layer; 27 - Protective layer; 28 - Bottom electrode layer; 29 - Top electrode layer; d1, d2, d3 - Dimensions of cutout areas; AA, BB, CC - Cross-sectional positions. Detailed Implementation

[0029] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0030] The following descriptions of the embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments in which this application can be implemented. The component designations used herein, such as "first," "second," etc., are merely for distinguishing the described objects and do not have any sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages). Directional terms used in this application, such as "up," "down," "front," "rear," "left," "right," "inner," "outer," "side," etc., are merely for reference to the accompanying drawings. Therefore, the use of directional terms is for better and clearer explanation and understanding of this application, and does not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising," "may include," "include," or "may include" used in this application indicate the presence of the corresponding disclosed function, operation, element, etc., and do not limit one or more other functions, operations, elements, etc. Moreover, the terms "comprising" or "include" indicate the presence of the corresponding features, number, steps, operations, elements, components, or combinations thereof disclosed in the specification, but do not exclude the presence or addition of one or more other features, number, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusion. It should also be understood that "at least one" as described herein means one or more, such as one, two, or three, while "multiple" means at least two, such as two or three, unless otherwise explicitly specified. The terms "step 1," "step 2," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0033] Please see Figure 1, Figure 1 This is a schematic diagram of the structure of a display panel 100 disclosed in an embodiment of this application. Figure 1 As shown, the display panel 100 provided in this embodiment uses electronic ink for display. The display panel 100 may include at least a bottom electrode 5, a plurality of capsules 220, and a plurality of top electrodes 1. The bottom electrodes 5 are disposed on one side of the top electrodes 1 at a predetermined distance. The plurality of capsules 220 are disposed between the bottom electrodes 5 and the top electrodes 1, that is, the bottom electrodes 5 and the top electrodes 1 are located on opposite sides of the plurality of capsules 220, and there is a gap between the bottom electrodes 5 and the top electrodes 1. The top electrodes 1 are provided with a plurality of hollow areas.

[0034] In this embodiment, the capsule 220 can be a closed micro-liquid capsule. A large number of extremely small micro-liquid capsules constitute electronic ink and fill the space between the bottom electrode 5 and the top electrode 1. Various charged particles and a transparent dispersion medium are distributed within the capsule 220, and the transparent dispersion medium is used to suspend the charged particles inside the capsule 220.

[0035] In this embodiment, the bottom electrode 5 may be a pixel electrode, and this application does not impose any specific restrictions on it.

[0036] In this embodiment, by controlling the bottom electrode 5 to be at different preset voltage values, the charged particles inside the capsule 220 are driven to move accordingly within the transparent dispersion medium of the capsule 220 under the action of the electric field force and then occupy different positions.

[0037] In the embodiments of this application, the charged particles are made of charged pigments, and since they are used in electronic paper, i.e. electronic ink screens, they are called charged ink droplets.

[0038] Next, this application embodiment will be described using the example of two types of charged particles distributed inside the capsule 220, namely, multiple first charged particles 221 and multiple second charged particles 222 distributed inside the capsule 220.

[0039] like Figure 1 As shown, multiple capsules 220 are disposed between multiple bottom electrodes 5 and multiple top electrodes 1. Each capsule 220 is a sealed sphere, and its interior encapsulates multiple first charged particles 221, multiple second charged particles 222, and a transparent dispersion medium 224. The first charged particles 221 and the second charged particles 222 are two types of particles with different charges.

[0040] For example, the first charged particle 221 is positively charged and the second charged particle 222 is negatively charged, or the first charged particle 221 is negatively charged and the second charged particle 222 is positively charged. Moreover, the first charged particle 221 and the second charged particle 222 are completely immersed in the transparent dispersion medium 224 and are able to move freely within the transparent dispersion medium 224.

[0041] When an electric field is formed at the electrodes at both ends of the capsule 220, the first charged particle 221 with positive (or negative) charge and the second charged particle 222 with negative (or positive) charge move accordingly under the action of the electric field force. The side of each capsule 220 closest to the top electrode 1 will appear black or white. Finally, all the capsules 220 together form a certain image on the side of the top electrode 1.

[0042] A plurality of first charged particles 221 and a plurality of second charged particles 222 are disposed within the capsule 220. Simultaneously, the capsule 220 is also filled with the transparent dispersion medium 224, which is used to suspend the plurality of first charged particles 221 and the plurality of second charged particles 222 within the capsule 220.

[0043] In this embodiment, by controlling the voltage value of the bottom electrode 5, the magnitude of the electric field formed by the electrodes at opposite ends of the capsule 220 (i.e., the bottom electrode 5 and the top electrode 1) is changed, thereby driving multiple first charged particles 221 and multiple second charged particles 222 to move within the capsule 220 through attraction or repulsion and to be in different positions, thereby reflecting different colors of light.

[0044] In a specific embodiment of this application, the first charged particle 221 can be a negatively charged black pigment, that is, the first charged particle 221 can be... Figure 1 The black particles in the middle; the second charged particle 222 can be a positively charged white pigment, that is, the second charged particle 222 can be a black particle; Figure 1 The white particles in the material are not specifically limited in this application.

[0045] like Figure 1 As shown, S1 is the incident optical path S1 of the light rays incident on the first charged particle 221 and the second charged particle 222, S2 is the first reflection optical path S2 of the incident light rays incident on the first charged particle 221 and reflected to form the first reflected light rays, and S3 is the second reflection optical path S3 of the incident light rays incident on the second charged particle 222 and reflected to form the second reflected light rays.

[0046] In this embodiment, the incident light rays incident on the first charged particle 221 reflect the first reflected light rays, which are of a first color, and the incident light rays incident on the second charged particle 222 reflect the second reflected light rays, which are of a second color.

[0047] In a specific embodiment of this application, the first charged particle 221 can be a negatively charged black pigment, and the second charged particle 222 can be a positively charged white pigment. In this case, the first reflected light formed by the incident light incident on the first charged particle 221 is black, i.e., the first color is black; the second reflected light formed by the incident light incident on the second charged particle 222 is white, i.e., the second color is white.

[0048] Please refer to the following: Figure 2 , Figure 2 for Figure 1 A partial structural schematic diagram of the display panel 100 is shown. (See attached diagram.) Figure 2 As shown in the embodiment of this application, the display panel 100 includes multiple data lines 2, multiple scan lines 4, and multiple pixel units 10 arranged in an array. The multiple data lines 2 and the multiple scan lines 4 are arranged perpendicularly and intersecting each other. The pixel units 10 are disposed between two adjacent scan lines 4 and between two adjacent data lines 2, and the pixel units 10 are electrically connected to the scan lines 4 and the data lines 2 respectively.

[0049] It is understood that one scan line 4 intersects with multiple data lines 2, and one data line 2 intersects with multiple scan lines 4, that is, the multiple scan lines 4 and the multiple data lines 2 are arranged in a grid pattern. One pixel unit 10 is electrically connected to one scan line 4 and one data line 2 respectively.

[0050] In an exemplary embodiment of this application, the multiple scan lines 4, the multiple data lines 2, and the scan lines 4 and the data lines 2 are all mutually insulated. That is, the multiple scan lines 4 are arranged at intervals and are mutually insulated, the multiple data lines 2 are arranged at intervals and are mutually insulated, and the multiple scan lines 4 and the multiple data lines 2 are mutually insulated.

[0051] In this embodiment, a plurality of pixel units 10 cooperate to display an image, and each pixel unit 10 includes a top electrode 1 (see...). Figure 1 The top electrode 1 and the bottom electrode 5 are spaced apart. The data line 2 is electrically connected to the pixel switch 6, and the scan line 4 is electrically connected to the pixel switch 6 and the bottom electrode 5. Each top electrode 1 is provided with multiple cutout areas.

[0052] In a specific embodiment of this application, the hollowed-out area may be the first hollowed-out area 11 (see...) Figure 3 ), second hollow area 13 (see Figure 4 ) and the third openwork area 15 (see Figure 5 One or more of the following.

[0053] In a specific embodiment of this application, the bottom electrode 5 may be a pixel electrode, and this application does not impose any specific limitations on it.

[0054] like Figure 2 As shown in other embodiments of this application, the pixel unit 10 further includes a common electrode line 3, a common electrode 7, and a display electrode 8. The display electrode 8 includes a first display electrode 8a and a second display electrode 8b, which are electrically connected to provide a bottom voltage to the bottom electrode 5. The common electrode line 3 is electrically connected to the common electrode 7 to transmit the common electrode voltage to the common electrode 7.

[0055] It is understood that the display electrode 8 is used to provide a bottom voltage to the bottom electrode 5. The first display electrode 8a and the second display electrode 8b are manufactured using different processes, and both are used to provide a bottom voltage to the bottom electrode 5.

[0056] Please refer to the following: Figure 3 and Figure 4 , Figure 3 for Figure 2 The diagram shows a layer structure of the display panel 100 along AA. Figure 4 for Figure 2 The diagram shows a schematic of the layer structure of the display panel 100 along the BB layer. Figure 3 and Figure 4 As shown in the embodiment of this application, the display panel 100 further includes a substrate 21, a first metal layer 22, an insulating layer 23, a second metal layer 26, a protective layer 27, a bottom electrode layer 28, and a top electrode layer 29. The first metal layer 22 is disposed on a portion of the substrate 21 and is used to arrange the scan lines 4 and the common electrode 7.

[0057] The insulating layer 23 is disposed on the substrate 21 and the side of the first metal layer 22 opposite to the substrate 21. That is, the insulating layer 23 is partially disposed on the substrate 21, and the remaining portion of the insulating layer 23 is disposed on the side of the first metal layer 22 opposite to the substrate 21. The insulating layer 23 is used to separate the first metal layer 22 and the second metal layer 26 to avoid signal crosstalk.

[0058] The second metal layer 26 is disposed on a portion of the insulating layer 23 opposite to the first metal layer 22. The second metal layer 26 is used to lay the data line 2 and form the pixel switch 6.

[0059] The protective layer 27 is disposed on the side of the insulating layer 23 facing away from the substrate 21 and on the side of the second metal layer 26 facing away from the insulating layer 23. Specifically, a portion of the protective layer 27 is disposed on the side of the insulating layer 23 facing away from the substrate 21, and the remaining portion of the protective layer 27 is disposed on the side of the second metal layer 26 facing away from the insulating layer 23. The protective layer 27 is used to protect the data cable 2, the insulating layer 23, and the second metal layer 26. In this embodiment, the protective layer 27 can be made of a material with good waterproof and UV protection properties; however, this application does not impose specific limitations on the material selection.

[0060] The bottom electrode layer 28 is disposed on a portion of the protective layer 27 on the side opposite to the second metal layer 26, and is used to form a plurality of bottom electrodes 5. Simultaneously, the second metal layer 26 and the bottom electrode layer 28 also serve to jointly form the display electrodes 8. That is, the second metal layer 26 and the bottom electrode layer 28 also serve to jointly form the first display electrode 8a and the second display electrode 8b.

[0061] The top electrode layer 29 is spaced apart on the side of the bottom electrode layer 28 opposite to the protective layer 27, and a plurality of capsules 220 are disposed between the bottom electrode layer 28 and the top electrode layer 29. That is, the bottom electrode layer 28 and the top electrode layer 29 are located on opposite sides of the plurality of capsules 220, and there is a gap between the bottom electrode layer 28 and the top electrode layer 29.

[0062] The top electrode layer 29 is used to arrange the top electrodes 1, and each top electrode 1 is provided with a plurality of first hollow areas 11 (see...). Figure 3 ), multiple second hollowed-out areas 13 (see Figure 4 ) and multiple third hollow areas 15 (see Figure 5 In this design, the first cutout area 11 corresponds to the area where the data line 2 is located, the second cutout area 13 corresponds to the area where the scan line 4 is located, and the third cutout area 15 corresponds to the area where the pixel switch 6 is located. That is, the display panel 100 of this application will cut out the top electrode 1 of the areas corresponding to the data line 2, the scan line 4, and the pixel switch 6 to form corresponding first cutout areas 11, second cutout areas 13, and third cutout areas 15, respectively. This reduces the load on the data line 2 and the scan line 4, thereby reducing the power consumption of the entire display device.

[0063] In this embodiment of the application, a plurality of capsules 220 are disposed between the top electrode 1 and the bottom electrode 5, that is, a plurality of capsules 220 are disposed between the bottom electrode layer 28 and the top electrode layer 29.

[0064] In specific embodiments of this application, the pixel switch 6 can be a thin film transistor (TFT), and this application does not impose any specific restrictions on it.

[0065] like Figure 3 and Figure 4 As shown in the specific embodiment of this application, the size d1 of the first hollow area 11 can be 8 micrometers (μm) to 12 μm, specifically 8 μm, 8.3 μm, 9 μm, 10 μm, 11.6 μm, 12 μm, or other values. The size d2 of the second hollow area 13 can be 8 micrometers (μm) to 12 μm, specifically 8 μm, 8.3 μm, 9 μm, 10 μm, 11.6 μm, 12 μm, or other values. The size d3 of the third hollow area 15 can be 30 micrometers (μm) to 50 μm, specifically 30 μm, 32 μm, 37 μm, 40 μm, 42 μm, 48 μm, 50 μm, or other values; this application does not impose specific limitations on this.

[0066] In this embodiment, the size d1 of the first cutout area 11 refers to the size of the first cutout area 11 along the AA direction corresponding to the area where the data line 2 is located; the size d2 of the second cutout area 13 refers to the size of the second cutout area 13 along the BB direction corresponding to the area where the scan line 4 is located; and the size d3 of the third cutout area 15 refers to the size of the third cutout area 15 along the CC direction corresponding to the area where the pixel switch 6 is located. The AA direction, the BB direction, and the CC direction are perpendicular to the thickness direction of the display panel 100, and the AA direction is parallel to the CC direction and perpendicular to the BB direction.

[0067] It is understood that the positions of the first cutout area 11, the second cutout area 13 and the third cutout area 15 can be determined according to the specific positions of the data line 2, the scan line 4 and the pixel switch 6, and this application does not impose specific restrictions.

[0068] In this embodiment, by hollowing out the top electrode layer 29 and forming corresponding first hollow area 11, second hollow area 13 and third hollow area 15 in the areas where the data line 2, the scan line 4 and the pixel switch 6 are located, the load on the data line 2 and the scan line 4 can be reduced, thereby reducing the power consumption of the multiple pixel units 10, and further reducing the power consumption of the entire display device.

[0069] Please refer to the following: Figure 5 , Figure 5 for Figure 2 The diagram shows a layer structure of the display panel 100 along the CC direction. (See attached diagram.) Figure 5 As shown in this embodiment, the display panel 100 further includes a channel layer 24 and an interface layer 25. The channel layer 24 is disposed on a portion of the insulating layer 23 opposite to the first metal layer 22, and the interface layer 25 is disposed on a portion of the channel layer 24 opposite to the insulating layer 23. The channel layer 24 is used to form the channel of the pixel switch 6. The interface layer 25 is used to reduce the interface potential difference and form an ohmic contact. The third cutout area 15 is disposed on the top electrode 1 and corresponds to the area where the pixel switch 6 is located.

[0070] The protective layer 27 is disposed on the side of the second metal layer 26 opposite to the insulating layer 23, the side of the interface layer 25 opposite to the channel layer 24, and the area of ​​the interface layer 25 not covering the channel layer 24.

[0071] Based on the same concept, this application also discloses a display device, which includes a display driving circuit and the aforementioned display panel 100. The display driving circuit controls the bottom electrode 5 of the display panel 100 to be at different voltage values, so that the electric field formed by the top electrode 1 and the bottom electrode 5 is different, so that the display panel 100 displays different images.

[0072] In a specific embodiment of this application, the display device includes a display panel 100 and a back panel. The display driving circuit is disposed on the back panel, and a frame 300 is disposed on the back panel. The display driving circuit is electrically connected to the display panel 100 through the frame 300. Specifically, a plurality of conductive gold balls are disposed within the frame 300, and the display driving circuit is electrically connected to a plurality of pixel units of the display panel 100 through the conductive gold balls within the frame 300. The display driving circuit provides a top voltage to the top electrode 1.

[0073] In this embodiment of the application, the display driving circuit is used to control the bottom electrode 5 of the display panel 100 to be at different voltage values, so as to change the magnitude of the electric field formed between the bottom electrode 5 and the top electrode 1 of the display panel, and under the action of the electric field between the bottom electrode 5 and the top electrode 1, the charged particles in the multiple capsules 220 are driven to move to different positions in the capsules 220 to reflect different colors of light.

[0074] Please refer to the following: Figures 6 to 9 , Figure 6 for Figure 2 A schematic diagram of the first structure of the top electrode layer 29 in the display panel 100 shown. Figure 7 for Figure 2 A schematic diagram of the second structure of the top electrode layer 29 in the display panel 100 shown. Figure 8 for Figure 2 This is a schematic diagram of the third structure of the top electrode layer 29 in the display panel 100. Figure 9 for Figure 2 The diagram shows a fourth structure of the top electrode layer 29 in the display panel 100.

[0075] like Figures 6 to 9 As shown in this embodiment, the top electrode layer 29 includes a plurality of top electrodes 1 arranged in an array. Each top electrode 1 includes a first cutout area 11, a second cutout area 13, and a third cutout area 15, wherein the first cutout area 11, the second cutout area 13, and the third cutout area 15 correspond to the areas where the data line 2, the scan line 4, and the pixel switch 6 are located, respectively.

[0076] like Figure 6 As shown, in a first structural embodiment of the top electrode layer 29 of this application, the plurality of top electrodes 1 arranged in an array are electrically connected. That is, two adjacent top electrodes 1 in each row are electrically connected, and two adjacent top electrodes 1 in each column are electrically connected. It can be understood that any one of the top electrodes 1 in the top electrode layer 29 is also electrically connected to the display driving circuit to receive a top voltage from the display driving circuit.

[0077] like Figure 7As shown, in a second structural embodiment of the top electrode layer 29 of this application, the plurality of top electrodes 1 in each row of the top electrode layer 29 are electrically connected, and the outermost top electrode 1 in each row is electrically connected to the frame 300. The frame 300 is electrically connected to the display driving circuit to transmit the top voltage output by the display driving circuit to the plurality of top electrodes 1. It can be understood that the plurality of top electrodes 1 in each column of the top electrode layer 29 are not electrically connected.

[0078] like Figure 8 As shown, in a third structural embodiment of the top electrode layer 29 of this application, the plurality of top electrodes 1 in each column of the top electrode layer 29 are electrically connected, and the outermost top electrode 1 in each column is electrically connected to the frame 300. The frame 300 is electrically connected to the display driving circuit to transmit the top voltage output by the display driving circuit to the plurality of top electrodes 1. It can be understood that the plurality of top electrodes 1 in each row of the top electrode layer 29 are not electrically connected.

[0079] like Figure 9 As shown, in the fourth structural embodiment of the top electrode layer 29 of this application, the plurality of top electrodes 1 in each row of the top electrode layer 29 are electrically connected, wherein the plurality of top electrodes 1 in the outermost column are electrically connected, and one of the plurality of top electrodes 1 in the aforementioned outermost column is electrically connected to the frame 300, and the frame 300 is electrically connected to the display driving circuit, so as to transmit the top voltage output by the display driving circuit to the plurality of top electrodes 1.

[0080] It should be noted that, Figures 6-9 Only the structure of the top electrode layer 29 when the third cutout area 15 is shown is illustrated. Similarly, when the top electrode layer 29 is provided with the first cutout area 11 and / or the second cutout area 13, the connection relationship between the display driving circuit and the multiple top electrodes 1 through the frame 300 is similar, so it will not be described in detail again.

[0081] In this embodiment, by changing the multiple top electrodes 1 and their electrical connection with the display driving circuit, the number of electrical connections and the space required for wiring to achieve the electrical connection are reduced as much as possible, thereby reducing the area of ​​the multiple top electrodes 1. This further reduces the problem of large load caused by the large area of ​​the multiple top electrodes 1, and improves the efficiency of data signal transmission and control accuracy.

[0082] In summary, in the display panel and display device of this application, by hollowing out the top electrode layer 29 (i.e., the top electrode 1) to form multiple first hollow areas 11, multiple second hollow areas 13, and multiple third hollow areas 15 corresponding to the areas where the data line 2, the scan line 4, and the pixel switch 6 are located, the load on the data line 2 and the scan line 4 can be reduced, thereby reducing the power consumption of the display panel 100, and further reducing the display effect of the entire display device.

[0083] Furthermore, by changing the multiple top electrodes 1 and their electrical connection with the display driving circuit, the number of electrical connections and the space required for wiring to achieve the electrical connection are reduced as much as possible, thereby reducing the area of ​​the multiple top electrodes 1. This further reduces the problem of large load caused by the large area of ​​the multiple top electrodes 1, and improves the efficiency of data signal transmission and control accuracy.

[0084] All possible combinations of the various technical features in the above embodiments are described; however, as long as there is no contradiction in the combination of these technical features, they should all be considered to be within the scope of this specification.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0086] It should be understood that the above-described embodiments are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. A display panel comprising multiple data lines, multiple scan lines, and multiple pixel units arranged in an array, wherein the pixel units are electrically connected to the scan lines and the data lines respectively, characterized in that, Each pixel unit includes a top electrode, a bottom electrode, and a pixel switch. The top electrode and the bottom electrode are spaced apart. The data line is electrically connected to the pixel switch, and the scan line is electrically connected to the pixel switch and the bottom electrode. Each top electrode is provided with multiple first cutout areas, multiple second cutout areas, and multiple third cutout areas. The first cutout areas correspond to the area where the data line is located, the second cutout areas correspond to the area where the scan line is located, and the third cutout areas correspond to the area where the pixel switch is located, so as to simultaneously reduce the load on the data line and the scan line. The size of the first cutout area and the size of the second cutout area are both smaller than the size of the third cutout area. The display panel also includes multiple capsules, a common electrode line, a common electrode, and a display electrode. The top electrode is positioned at a preset distance from one side of the bottom electrode. Multiple capsules are positioned between the top electrode and the bottom electrode. Each capsule contains multiple first charged particles, multiple second charged particles, and a transparent dispersion medium. The transparent dispersion medium suspends the first charged particles and the second charged particles inside the capsule.

2. The display panel as described in claim 1, characterized in that, The display electrode includes a first display electrode and a second display electrode, which are electrically connected to provide a bottom voltage to the bottom electrode; the common electrode line is electrically connected to the common electrode to transmit the common electrode voltage to the common electrode.

3. The display panel as described in claim 2, characterized in that, The display panel further includes a substrate, a first metal layer, an insulating layer, a second metal layer, a protective layer, a bottom electrode layer, and a top electrode layer, wherein the first metal layer is disposed in a portion of the substrate and is used to arrange the scan lines and the common electrode; The insulating layer is disposed on the substrate and the side of the first metal layer facing away from the substrate; The second metal layer is disposed on a portion of the insulating layer opposite to the first metal layer, and is used to lay the data lines and form the pixel switch; The protective layer is disposed on the side of the insulating layer opposite to the substrate and on the side of the second metal layer opposite to the insulating layer; The bottom electrode layer is disposed on a portion of the protective layer on the side opposite to the second metal layer, and is used to form a plurality of bottom electrodes. The bottom electrode layer and the second metal layer are also used to form the display electrode. The top electrode layer is spaced apart on the side of the bottom electrode layer opposite to the protective layer, and is used to arrange the top electrodes.

4. The display panel as described in claim 3, characterized in that, The display panel further includes a channel layer and an interface layer, wherein the channel layer is disposed on a portion of the insulating layer opposite to the first metal layer, and the interface layer is disposed on a portion of the channel layer opposite to the insulating layer. The channel layer is used to form the channel of the pixel switch, and the interface layer is used to reduce the interface potential difference. The protective layer is disposed on the side of the second metal layer opposite to the insulating layer, the side of the interface layer opposite to the channel layer, and the area of ​​the interface layer not covering the channel layer.

5. The display panel as described in claim 1, characterized in that, The size of the first hollow area is 8μm~12μm, the size of the second hollow area is 8μm~12μm, and the size of the third hollow area is 30μm~50μm.

6. A display device, characterized in that, The display device includes a display driving circuit and a display panel as described in any one of claims 1-5. The display driving circuit controls the bottom electrode of the display panel to be at different voltage values, so that the electric field formed by the top electrode and the bottom electrode is different in magnitude, and the display panel displays an image.

7. The display device as claimed in claim 6, characterized in that, The top electrode layer includes a plurality of top electrodes arranged in an array, and the plurality of top electrodes are electrically connected to each other.

8. The display device as claimed in claim 6, characterized in that, The top electrode layer includes a plurality of top electrodes arranged in an array, with the plurality of top electrodes in each row electrically connected to each other, and the outermost top electrode in each row electrically connected to the display driving circuit, and the top voltage output by the display driving circuit is transmitted to the plurality of top electrodes.

9. The display device as claimed in claim 6, characterized in that, The top electrode layer includes a plurality of top electrodes arranged in an array. The plurality of top electrodes in each row of the top electrode layer are electrically connected to each other. The plurality of top electrodes in the outermost column are electrically connected to each other, and one of the top electrodes in the outermost column is electrically connected to the display driving circuit. The top voltage output by the display driving circuit is transmitted to the plurality of top electrodes.

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