CN116224673A - Display panel and display device - Google Patents

Abstract

The application relates to a display panel and a display device. The pixel units of the display panel are respectively and electrically connected with the scanning lines and the data lines, each pixel unit comprises a bottom electrode, a top electrode and a pixel switch, the top electrode and the bottom electrode are arranged at intervals, the data lines are electrically connected with the pixel switches, the scanning lines are electrically connected to the pixel switches and the bottom electrodes, and each top electrode is respectively provided with a plurality of hollowed-out areas in areas corresponding to the data lines, the scanning lines and the pixel switches. In the display panel, the plurality of hollow areas are formed on 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 further, the display effect of the whole display device is reduced.

Description

Display panel and display device

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display panel and a display device including the display panel.

Background

An Electronic Paper (Electronic Paper) display device is a device in which colored charged particles are uniformly dispersed in a medium solution having a certain viscosity, and the charged particles are electrophoretically moved by an electric field to generate color display. The colored charged particles are utilized to reflect external light for picture display, so that the display effect of the common paper is achieved. Moreover, electronic paper display devices have significant power saving capabilities relative to other types of display devices. Therefore, the electronic paper display device is increasingly used.

Existing electronic paper display structures generally include: a display electrode, a pixel electrode, and microcapsules containing colored charged particles between the display electrode and the pixel electrode. Different voltages are applied to the pixel electrodes to enable the charged particles to do different electrophoretic motions, so that different colors are displayed on the electronic paper display structure.

However, how to reduce the power consumption and extend the battery life of the existing electronic paper display device is a problem to be solved by those skilled in the art.

Disclosure of Invention

In view of the shortcomings of the prior art, an object of the present application is to provide a display panel and a display device, in which a plurality of hollowed areas are formed on a top electrode layer, so that loads on a data line and a scanning line can be reduced, power consumption of the display panel is reduced, and further, display effect of the whole display device is reduced.

In a first aspect, the present application provides a display panel, the display panel includes a plurality of data lines, a plurality of scanning lines and a plurality of pixel units that array was arranged, the pixel unit respectively with the scanning line and data line electric connection, every the pixel unit includes top electrode, bottom electrode and pixel switch, top electrode with bottom electrode interval sets up, data line electric connection pixel switch, scanning line electric connection to pixel switch with bottom electrode, every the top electrode is corresponding the data line the scanning line with pixel switch's region is provided with a plurality of fretwork areas respectively.

In some embodiments, the plurality of hollowed-out areas include a plurality of first hollowed-out areas, a plurality of second hollowed-out areas and a plurality of third hollowed-out areas, the positions of the top electrodes corresponding to the data lines are provided with the first hollowed-out areas, the positions of the top electrodes corresponding to the scanning lines are provided with the second hollowed-out areas, and the positions of the top electrodes corresponding to the pixel switches are provided with the third hollowed-out areas.

In some embodiments, the display panel further includes a plurality of capsules, a common electrode line, a common electrode, and a display electrode, the top electrode being disposed at one side of the bottom electrode with a preset distance therebetween, a plurality of the capsules being disposed between the top electrode and the bottom electrode, wherein the capsules are encapsulated with a plurality of first charged particles, a plurality of second charged particles, and a transparent dispersion medium suspending the first charged particles and the second charged particles inside the capsules; the display electrode comprises a first display electrode and a second display electrode, and the first display electrode and the second display electrode are electrically connected and used for providing bottom voltage for the bottom electrode; the common electrode line is electrically connected to the common electrode for transmitting a common electrode voltage to the common electrode.

In some embodiments, the display panel further includes a substrate base plate, 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 on a partial region of the substrate base plate, and is used for laying out the scan lines and the common electrode; the insulating layer is arranged on one side of the substrate opposite to the substrate, of the first metal layer; the second metal layer is arranged in a partial area of the insulating layer, which is opposite to the first metal layer, and is used for laying the data line and forming the pixel switch; the protective layer is arranged on one side of the insulating layer, which is opposite to the substrate, and one side of the second metal layer, which is opposite to the insulating layer; the bottom electrode layer is arranged on a partial area of one side of the protective layer, which is opposite to the second metal layer, and is used for forming a plurality of bottom electrodes, and the bottom electrode layer and the second metal layer are also used for forming the display electrode; the top electrode layer is arranged at one side of the bottom electrode layer, which is opposite to the protective layer, and is used for arranging the top electrode.

In some embodiments, the display panel further includes a channel layer and an interface layer, wherein the channel layer is disposed on a partial region of the insulating layer facing away from the first metal layer, the interface layer is disposed on a partial region of the channel layer facing away from the insulating layer, the channel layer is used to form a channel of the pixel switch, and the interface layer is used to reduce an interface potential difference; the protective layer is arranged on one side of the second metal layer, which is opposite to the insulating layer, and one side of the interface layer, which is opposite to the channel layer, and the area of the interface layer, which is not covered by the channel layer.

In some embodiments, the first hollow region has a size of 8 μm to 12 μm, the second hollow region has a size of 8 μm to 12 μm, and the third hollow region has a size of 30 μm to 50 μm.

In a second aspect, the present application provides a display device, where the display device includes a display driving circuit and the display panel, where the display driving circuit controls a bottom electrode of the display panel to be at different voltage values, so that an electric field formed by the top electrode and the bottom electrode is different in size, and the display panel displays a picture.

In some embodiments, the top electrode layer includes a plurality of the top electrodes, the plurality of the top electrodes are arranged in an array, and the plurality of the top electrodes are electrically connected.

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

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

In summary, in the display panel and the display device of the present application, the plurality of first hollow areas, the plurality of second hollow areas and the plurality of third hollow areas are formed through the hollow areas of the top electrode layer corresponding to the data lines, the scanning lines and the pixel switches, so that the loads on the data lines and the scanning lines can be reduced, the power consumption of the display panel is reduced, and further, the display effect of the whole display device is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a portion of the display panel shown in FIG. 1;

FIG. 3 is a schematic view showing a layer structure along A-A of the display panel shown in FIG. 2;

FIG. 4 is a schematic view showing a layer structure of the display panel shown in FIG. 2 along B-B;

FIG. 5 is a schematic view of the layer structure of the display panel shown in FIG. 2 along the line C-C;

FIG. 6 is a schematic view of a first structure of a top electrode layer of the display panel shown in FIG. 2;

FIG. 7 is a schematic diagram showing a second structure of the top electrode layer of the display panel shown in FIG. 2;

FIG. 8 is a schematic view of a third structure of the top electrode layer of the display panel shown in FIG. 2;

fig. 9 is a schematic diagram of a fourth structure of the top electrode layer in the display panel shown in fig. 2.

Reference numerals illustrate:

100-a display panel; 5-a bottom electrode; 1-a top electrode; 300-rubber frame; 220-capsules; 221-first charged particles; 222-second charged particles; 224-a transparent dispersion medium; S1-S3-light paths; 2-data lines; 3-common electrode lines; 4-scanning lines; a 6-pixel switch; 7-a common electrode; 8-display electrodes; 8 A-A first display electrode; 8 b-a second display electrode; a 10-pixel unit; 11-a first hollow area; 13-a second hollow region; 15-a third hollow area; 21-a substrate base; 22-a first metal layer; 23-an insulating layer; 24-channel layer; 25-an interfacial layer; 26-a second metal layer; 27-a protective layer; 28-a bottom electrode layer; 29-a top electrode layer; d1, d2, d 3-size of the hollow area; A-A, B-B, C-C-section position.

Detailed Description

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments that can be used to practice the present application. The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. Directional terms referred to in this application, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., are merely directions referring to the attached drawings, and thus, directional terms are used for better, more clear description and understanding of the present application, rather than indicating or implying that the apparatus or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context. It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the drawings are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprises," "comprising," "includes," "including," "may be" or "including" as used in this application mean the presence of the corresponding function, operation, element, etc. disclosed, but not limited to other one or more additional functions, operations, elements, etc. Furthermore, the terms "comprises" or "comprising" mean that there is a corresponding feature, number, step, operation, element, component, or combination thereof disclosed in the specification, and that there is no intention to exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof. It will also be understood that the meaning of "at least one" as described herein is one and more, such as one, two or three, etc., and the meaning of "a plurality" is at least two, such as two or three, etc., unless specifically defined otherwise. The terms "step 1", "step 2", and the like in the description and claims of the present application and in the drawings, are used for distinguishing between different objects and not for describing a particular sequential order.

Unless defined otherwise, 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 description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a display panel 100 according to an embodiment of the disclosure. As shown in fig. 1, the display panel 100 provided in the embodiment of the present application uses electronic ink for displaying, where the display panel 100 may at least include a bottom electrode 5, a plurality of capsules 220, and a plurality of top electrodes 1. The bottom electrode 5 is disposed at a preset distance on one side of the top electrode 1, and a plurality of the capsules 220 are disposed between the bottom electrode 5 and the top electrode 1, that is, the bottom electrode 5 and the top electrode 1 are disposed on two opposite sides of the plurality of the capsules 220, and a gap is formed between the bottom electrode 5 and the top electrode 1. Wherein, the top electrode 1 is provided with a plurality of hollow areas.

In this embodiment, the capsule 220 may be a closed micro liquid capsule, and a large number of micro liquid capsules with very small size form the electronic ink and are filled between the bottom electrode 5 and the top electrode 1. The capsule 220 is internally provided with a plurality of charged particles and a transparent dispersion medium for suspending the charged particles in the capsule 220.

In the embodiment of the present application, the bottom electrode 5 may be a pixel electrode, which is not specifically limited in the present application.

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

In the embodiments of the present application, the charged particles are made of charged pigments, which are called charged ink droplets since they are used in electronic paper, i.e. electronic ink screens.

Next, the embodiment of the present application will be described by taking as an example that two kinds of charged particles are distributed in the capsule 220, that is, a plurality of first charged particles 221 and a plurality of second charged particles 222 are distributed in the capsule 220.

As shown in fig. 1, a plurality of the capsules 220 are disposed between a plurality of the bottom electrodes 5 and a plurality of the top electrodes 1, the capsules 220 are integrally formed as sealed spheres, and a plurality of first charged particles 221, a plurality of second charged particles 222, and a transparent dispersion medium 224 are encapsulated therein. Wherein the first charged particles 221 and the second charged particles 222 are two kinds of particles having different charges.

For example, the first charged particles 221 are positively charged, the second charged particles 222 are negatively charged, or the first charged particles 221 are negatively charged and the second charged particles 222 are positively charged. Further, the first charged particles 221 and the second charged particles 222 are completely immersed in the transparent dispersion medium 224 and can freely move within the transparent dispersion medium 224.

When the electrodes at both ends of the capsules 220 form an electric field, the first charged particles 221 with positive electricity (or negative electricity) and the second charged particles 222 with negative electricity (or positive electricity) move correspondingly under the action of the electric field force, and the side of each capsule 220 close to the top electrode 1 is black or white, and finally all the capsules 220 are jointly displayed on one side of the top electrode 1 to form a certain image.

A plurality of the first charged particles 221 and a plurality of the second charged particles 222 are disposed within the capsule 220. Meanwhile, the capsule 220 is further filled with the transparent dispersion medium 224, and the transparent dispersion medium 224 is used to suspend the plurality of first charged particles 221 and the plurality of second charged particles 222 inside the capsule 220.

In this embodiment, the voltage value of the bottom electrode 5 is controlled to change the magnitude of the electric field formed by the electrodes at the opposite ends of the capsule 220 (i.e. the bottom electrode 5 and the top electrode 1), so as to drive the plurality of first charged particles 221 and the plurality of second charged particles 222 to be at different positions after moving in the capsule 220 through attraction or repulsion, so as to reflect the light rays of different colors.

In a specific embodiment of the present application, the first charged particles 221 may be negatively charged black pigments, i.e. the first charged particles 221 may be black particles in fig. 1; the second charged particles 222 may be positively charged white pigment, i.e., the second charged particles 222 may be white particles in fig. 1, which is not particularly limited in this application.

As shown in fig. 1, S1 is an incident light path S1 of light incident on the first charged particles 221 and the second charged particles 222, and S2 is a first reflected light path S2 of first reflected light formed by reflecting incident light on the first charged particles 221. S3 is a second reflected light path S3 of the second reflected light beam formed by the incident light beam being reflected by the second charged particles 222.

In this embodiment, a first reflected light beam formed by reflecting the incident light beam incident on the first charged particles 221 is represented by a first color, and a second reflected light beam formed by reflecting the incident light beam incident on the second charged particles 222 is represented by a second color.

In a specific embodiment of the present application, the first charged particles 221 may be negatively charged black pigments, and the second charged particles 222 may be positively charged white pigments. At this time, the first reflected light beam reflected by the first charged particles 221 is black, i.e. the first color is black, and the second reflected light beam reflected by the second charged particles 222 is white, i.e. the second color is white.

Referring to fig. 2 together, fig. 2 is a schematic diagram illustrating a portion of the structure of the display panel 100 shown in fig. 1. As shown in fig. 2, in the embodiment of the present application, the display panel 100 includes a plurality of data lines 2, a plurality of scan lines 4, and a plurality of pixel units 10 arranged in an array, wherein a plurality of the data lines 2 and a plurality of the scan lines 4 are vertically arranged in a cross manner, 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 respectively electrically connected with the scan lines 4 and the data lines 2.

It will be appreciated that one of the scan lines 4 intersects a plurality of the data lines 2, and one of the data lines 2 intersects a plurality of the scan lines 4, i.e., the plurality of the scan lines 4 and the plurality of data lines 2 are disposed in a grid-like manner. One of the pixel units 10 is electrically connected to one of the scan lines 4 and one of the data lines 2, respectively.

In the present exemplary embodiment, the plurality of the scanning lines 4, the plurality of the data lines 2, and the scanning lines 4 and the data lines 2 are insulated from each other. That is, the plurality of scan lines 4 are arranged at intervals and insulated from each other, the plurality of data lines 2 are arranged at intervals and insulated from each other, and the plurality of scan lines 4 and the plurality of data lines 2 are insulated from each other.

In the embodiment of the present application, a plurality of the pixel units 10 cooperate to display a picture, and each of the pixel units 10 includes a top electrode 1 (see fig. 1), a bottom electrode 5, and a pixel switch 6. The top electrodes 1 and the bottom electrodes 5 are arranged at intervals, the data lines 2 are electrically connected to the pixel switches 6, the scanning lines 4 are electrically connected to the pixel switches 6 and the bottom electrodes 5, and a plurality of hollow areas are formed in each top electrode 1.

In a specific embodiment of the present application, the hollowed-out area may be one or more of the first hollowed-out area 11 (see fig. 3), the second hollowed-out area 13 (see fig. 4), and the third hollowed-out area 15 (see fig. 5).

In the embodiment of the present application, the bottom electrode 5 may be a pixel electrode, which is not particularly limited in the present application.

As shown in fig. 2, in other embodiments of the present application, the pixel unit 10 further includes a common electrode line 3, a common electrode 7, and a display electrode 8, where the display electrode 8 includes a first display electrode 8a and a second display electrode 8b, and the first display electrode 8a and the second display electrode 8b are electrically connected to provide a bottom voltage for the bottom electrode 5. The common electrode line 3 is electrically connected to the common electrode 7 for transmitting a common electrode voltage to the common electrode 7.

It will be appreciated 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 differently and are used to provide the bottom voltage to the bottom electrode 5.

Referring to fig. 3 and 4 together, fig. 3 is a schematic layer structure of the display panel 100 shown in fig. 2 along A-A. Fig. 4 is a schematic view illustrating a layer structure of the display panel 100 shown in fig. 2 along B-B. As shown in fig. 3 and 4, in the embodiment of the present 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. Wherein the first metal layer 22 is disposed in a partial region on the substrate 21, and is used for distributing the scan line 4 and the common electrode 7.

The insulating layer 23 is disposed on the side of the substrate 21 and the first metal layer 22 facing away from the substrate 21, that is, the insulating layer 23 is partially disposed on the substrate 21, and the rest of the insulating layer 23 is disposed on the side of the first metal layer 22 facing away from 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.

The second metal layer 26 is disposed in a partial area of the insulating layer 23 opposite to the first metal layer 22, and the second metal layer 26 is used for laying the data line 2 and forming the pixel switch 6.

The protective layer 27 is disposed on a side of the insulating layer 23 facing away from the substrate 21 and a side of the second metal layer 26 facing away from the insulating layer 23, that is, a portion of the protective layer 27 is disposed on a side of the insulating layer 23 facing away from the substrate 21, and the rest of the protective layer 27 is disposed on a side of the second metal layer 26 facing away from the insulating layer 23. The protection layer 27 is used for protecting the data line 2, the insulating layer 23 and the second metal layer 26, in this embodiment, the protection layer 27 may be made of a material with good waterproof and ultraviolet-proof effects, and the material selection is not specifically limited in this application.

The bottom electrode layer 28 is disposed on a partial region of the protective layer 27 on a side facing away from the second metal layer 26, for forming a plurality of the bottom electrodes 5. At the same time, the second metal layer 26 and the bottom electrode layer 28 are also used to jointly form the display electrode 8. That is, the second metal layer 26 and the bottom electrode layer 28 are also used to form the first display electrode 8a and the second display electrode 8b together.

The top electrode layer 29 is disposed at a distance from the bottom electrode layer 28 on a side 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 with a gap between the bottom electrode layer 28 and the top electrode layer 29.

The top electrode layer 29 is used for disposing the top electrodes 1, and each top electrode 1 is provided with a plurality of first hollowed-out areas 11 (see fig. 3), a plurality of second hollowed-out areas 13 (see fig. 4), and a plurality of third hollowed-out areas 15 (see fig. 5). The first hollow area 11 corresponds to the area where the data line 2 is located, the second hollow area 13 corresponds to the area where the scanning line 4 is located, and the third hollow area 15 corresponds to the area where the pixel switch 6 is located. That is, the display panel 100 of the present application will hollow out the top electrode 1 corresponding to the data line 2, the scan line 4 and the pixel switch 6 to form the corresponding first hollow out area 11, second hollow out area 13 and third hollow out area 15 respectively, so that the load on the data line 2 and the scan line 4 can be reduced, and the power consumption of the whole display device can be reduced.

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

In the embodiment of the present application, the pixel switch 6 may be a thin film transistor (Thin Film Transistor, abbreviated as TFT), which is not specifically limited in the present application.

As shown in fig. 3 and 4, in the embodiment of the present application, the dimension d1 of the first hollow area 11 may be 8 micrometers (μm) to 12 μm, and specifically may take 8 μm, 8.3 μm, 9 μm, 10 μm, 11.6 μm, 12 μm, or other values. The dimension d2 of the second hollow-out area 13 may be 8 micrometers (μm) to 12 μm, and may specifically be 8 μm, 8.3 μm, 9 μm, 10 μm, 11.6 μm, 12 μm, or other values. The dimension d3 of the third hollow area 15 may be 30 micrometers (μm) to 50 μm, specifically, may take a value of 30 μm, 32 μm, 37 μm, 40 μm, 42 μm, 48 μm, 50 μm, or other values, which are not particularly limited in this application.

In this embodiment, the dimension d1 of the first hollow area 11 refers to the dimension of the first hollow area 11 corresponding to the region where the data line 2 is located along the A-A direction, the dimension d2 of the second hollow area 13 refers to the dimension of the second hollow area 13 corresponding to the region where the scanning line 4 is located along the B-B direction, and the dimension d3 of the third hollow area 15 refers to the dimension of the third hollow area 15 corresponding to the region where the pixel switch 6 is located along the C-C direction. Wherein the A-A direction, the B-B direction, and the C-C direction are perpendicular to the thickness direction of the display panel 100, and the A-A direction is parallel to the C-C direction, and the A-A direction is perpendicular to the B-B direction.

It will be appreciated that the positions of the first hollow area 11, the second hollow area 13 and the third hollow area 15 may be determined according to the specific positions of the data line 2, the scanning line 4 and the pixel switch 6, which is not particularly limited in this application.

In this embodiment of the present application, the first hollow area 11, the second hollow area 13, and the third hollow area 15 are formed by hollowing out the areas where the top electrode layer 29 and the corresponding data lines 2, the scanning lines 4, and the pixel switches 6 are located, so that the loads on the data lines 2 and the scanning lines 4 can be reduced, and the power consumption of a plurality of the pixel units 10 is reduced, and further, the power consumption of the whole display device is reduced.

Referring to fig. 5, fig. 5 is a schematic view illustrating a layer structure along C-C of the display panel 100 shown in fig. 2. As shown in fig. 5, in the embodiment of the present application, the display panel 100 further includes a channel layer 24 and an interface layer 25, where the channel layer 24 is disposed in a partial area of the insulating layer 23 opposite to the first metal layer 22, and the interface layer 25 is disposed in a partial area of the channel layer 24 opposite to the insulating layer 23, and the channel layer 24 is used to form a 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 hollow area 15 is disposed in the area of the top electrode 1 corresponding to the pixel switch 6.

The protective layer 27 is disposed on a side of the second metal layer 26 facing away from the insulating layer 23, a side of the interface layer 25 facing away from the channel layer 24, and a region of the interface layer 25 not covering the channel layer 24.

Based on the same concept, the embodiments of the present application also disclose a display device, which includes a display driving circuit and the display panel 100 described above, where 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 pictures.

In this embodiment of the application, the display device includes a display panel 100 and a back board, the display driving circuit is disposed on the back board, a glue frame 300 is disposed on the back board, and the display driving circuit is electrically connected with the display panel 100 through the glue frame 300. Specifically, a plurality of conductive gold balls are disposed in the glue frame 300, the display driving circuit is electrically connected to a plurality of pixel units of the display panel 100 through the conductive gold balls in the glue frame 300, and the display driving circuit provides a top voltage for the top electrode 1.

In this embodiment, the display driving circuit is configured to control the bottom electrode 5 of the display panel 100 to be at different voltage values so as to change the magnitude of an electric field formed between the bottom electrode 5 and the top electrode 1 of the display panel, and the electric field between the bottom electrode 5 and the top electrode 1 drives the charged particles in the plurality of capsules 220 to move to different positions in the capsules 220 so as to reflect different colors of light.

Referring to fig. 6 to 9 together, fig. 6 is a schematic diagram illustrating a first structure of the top electrode layer 29 in the display panel 100 shown in fig. 2. Fig. 7 is a schematic diagram of a second structure of the top electrode layer 29 in the display panel 100 shown in fig. 2. Fig. 8 is a schematic diagram of a third structure of the top electrode layer 29 in the display panel 100 shown in fig. 2. Fig. 9 is a schematic diagram of a fourth structure of the top electrode layer 29 in the display panel 100 shown in fig. 2.

As shown in fig. 6 to 9, in the embodiment of the present application, the top electrode layer 29 includes a plurality of the top electrodes 1, and a plurality of the top electrodes 1 are arranged in an array. Each top electrode 1 includes a first hollow area 11, a second hollow area 13 and a third hollow area 15, where the first hollow area 11, the second hollow area 13 and the third hollow area 15 correspond to the data line 2, the scanning line 4 and the pixel switch 6 respectively.

As shown in fig. 6, in the first structural embodiment of the top electrode layer 29 of the present application, a plurality of the 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 will be appreciated that any one of the top electrode layers 29 the top electrode 1 is also electrically connected to the display driver circuit to receive a top voltage from the display driver circuit.

As shown in fig. 7, in a second structural embodiment of the top electrode layer 29, a plurality of top electrodes 1 in each row of the top electrode layer 29 are electrically connected, and an outermost one of the top electrodes 1 in each row is electrically connected to the glue frame 300, and the glue 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. It will be appreciated that the top electrode layer 29 is not electrically connected between the plurality of top electrodes 1 in each column.

As shown in fig. 8, in a third structural embodiment of the top electrode layer 29, a plurality of top electrodes 1 in each column of the top electrode layer 29 are electrically connected, and an outermost top electrode 1 in each column is electrically connected to the glue frame 300, and the glue 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. It will be appreciated that the top electrode layer 29 is not electrically connected between the plurality of top electrodes 1 in each row.

As shown in fig. 9, in a fourth structural embodiment of the top electrode layer 29, the top electrodes 1 of each row of the top electrode layer 29 are electrically connected, wherein the top electrodes 1 of the outermost row are electrically connected, one of the top electrodes 1 of the outermost row 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 top electrodes 1.

Fig. 6 to 9 show only a schematic structure of the top electrode layer 29 when the third hollow region 15 is provided. Similarly, when the top electrode layer 29 is disposed in the first hollow area 11 and/or the second hollow area 13, the connection relationship between the display driving circuit and the plurality of top electrodes 1 through the frame 300 is similar, so that the description is omitted.

In this embodiment of the present application, by changing the plurality of top electrodes 1 and the electrical connection manner between the top electrodes and the display driving circuit, the number of times of electrical connection is reduced as much as possible, and the space where wiring is required for implementing electrical connection is reduced, so as to reduce the area of laying a plurality of top electrodes 1, thereby further reducing the problem of larger load caused by the larger area of a plurality of top electrodes 1, and improving the efficiency and control accuracy of data signal transmission.

In summary, in the display panel and the display device of the present application, the plurality of first hollow areas 11, the plurality of second hollow areas 13 and the plurality of third hollow areas 15 are hollowed out in the area where the top electrode layer 29 (i.e. the top electrode 1) corresponds to the data line 2, the scanning line 4 and the pixel switch 6, so that the loads on the data line 2 and the scanning line 4 can be reduced, thereby reducing the power consumption of the display panel 100, and further reducing the display effect of the whole display device.

In addition, by changing the electrical connection modes of the plurality of top electrodes 1 and the display driving circuit, the number of electrical connection times is reduced as much as possible, and the space for wiring is required for realizing the electrical connection, so that the area for wiring the plurality of top electrodes 1 is reduced, the problem of large load caused by the large area of the plurality of top electrodes 1 is further reduced, and the efficiency and the control accuracy of data signal transmission are improved.

All possible combinations of the technical features in the above embodiments are described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

It is to be understood that the above examples represent only a few embodiments of the present application, which are described in more detail and detail, but are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. The utility model provides a display panel, includes many data lines, many scanning lines and a plurality of array arrangement's pixel unit, the pixel unit respectively with the scanning line with data line electric connection, its characterized in that, every the pixel unit includes top electrode, bottom electrode and pixel switch, top electrode with bottom electrode interval sets up, data line electric connection pixel switch, scanning line electric connection to pixel switch with bottom electrode, every the top electrode is corresponding the data line the scanning line with pixel switch's region is provided with a plurality of fretwork areas respectively.

2. The display panel of claim 1, wherein the plurality of hollowed-out areas comprise a plurality of first hollowed-out areas, a plurality of second hollowed-out areas and a plurality of third hollowed-out areas, the first hollowed-out areas are arranged at positions of the top electrodes corresponding to the data lines, the second hollowed-out areas are arranged at positions of the top electrodes corresponding to the scanning lines, and the third hollowed-out areas are arranged at positions of the top electrodes corresponding to the pixel switches.

3. The display panel of claim 2, further comprising a plurality of capsules, a common electrode line, a common electrode, and a display electrode, wherein the top electrode is disposed at one side of the bottom electrode with a preset distance therebetween, a plurality of the capsules are disposed between the top electrode and the bottom electrode, wherein the capsules are encapsulated with a plurality of first charged particles, a plurality of second charged particles, and a transparent dispersion medium suspending the first charged particles and the second charged particles inside the capsules;

the display electrode comprises a first display electrode and a second display electrode, and the first display electrode and the second display electrode are electrically connected and used for providing bottom voltage for the bottom electrode; the common electrode line is electrically connected to the common electrode for transmitting a common electrode voltage to the common electrode.

4. The display panel of claim 3, further comprising a substrate base plate, 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 on a partial region of the substrate base plate for laying out the scan lines and the common electrode;

the insulating layer is arranged on one side of the substrate opposite to the substrate, of the first metal layer;

the second metal layer is arranged in a partial area of the insulating layer, which is opposite to the first metal layer, and is used for laying the data line and forming the pixel switch;

the protective layer is arranged on one side of the insulating layer, which is opposite to the substrate, and one side of the second metal layer, which is opposite to the insulating layer;

the bottom electrode layer is arranged on a partial area of one side of the protective layer, which is opposite to the second metal layer, and is used for forming a plurality of bottom electrodes, and the bottom electrode layer and the second metal layer are also used for forming the display electrode;

the top electrode layer is arranged at one side of the bottom electrode layer, which is opposite to the protective layer, and is used for arranging the top electrode.

5. The display panel of claim 4, further comprising a channel layer and an interface layer, wherein the channel layer is disposed in a partial region of the insulating layer opposite the first metal layer, the interface layer is disposed in a partial region of the channel layer opposite the insulating layer, the channel layer is used to form a channel of the pixel switch, and the interface layer is used to reduce an interface potential difference;

the protective layer is arranged on one side of the second metal layer, which is opposite to the insulating layer, and one side of the interface layer, which is opposite to the channel layer, and the area of the interface layer, which is not covered by the channel layer.

6. The display panel of claim 2, wherein the first hollow region has a size of 8 μm to 12 μm, the second hollow region has a size of 8 μm to 12 μm, and the third hollow region has a size of 30 μm to 50 μm.

7. A display device comprising a display driving circuit and the display panel according to any one of claims 1 to 6, wherein 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, and the display panel displays a picture.

8. The display device of claim 7, wherein the top electrode layer comprises a plurality of the top electrodes, wherein the plurality of top electrodes are arranged in an array, and wherein the plurality of top electrodes are electrically connected.

9. The display device of claim 7, wherein the top electrode layer includes a plurality of the top electrodes, the plurality of top electrodes are arranged in an array, the plurality of top electrodes of each row are electrically connected to each other, and an outermost one of the top electrodes of each row is electrically connected to the display driving circuit, and a top voltage output from the display driving circuit is transmitted to the plurality of top electrodes.

10. The display device of claim 7, wherein the top electrode layer comprises a plurality of the top electrodes, the plurality of top electrodes are arranged in an array, the plurality of top electrodes of each row of the top electrode layer are electrically connected, wherein the plurality of top electrodes of an outermost column are electrically connected, and one of the top electrodes of the outermost column is electrically connected to a display driving circuit, and a top voltage output from the display driving circuit is transmitted to the plurality of top electrodes.

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