An electrophoretic electronic paper

Abstract

This invention discloses an electrophoretic electronic paper, comprising an electrode plate, a capsule, and charged particles. There is only one electrode plate, and the capsule is disposed on one side of the electrode plate. Multiple charged particles are encapsulated within the capsule. Each charged particle includes a positively charged particle and a negatively charged particle that can combine to form a whole. Each of the positively and negatively charged particles is half of the whole, and the positively and negatively charged particles are of different colors. By applying a positive voltage to the electrode plate, the half of the particle with the negative charge will rotate towards the electrode plate, while the half with the positive charge will rotate away from the electrode plate, displaying the color of the negatively charged particle, and vice versa. Furthermore, since the positively and negatively charged particles are encapsulated as a whole, only one type of charged particle is encapsulated within the capsule, allowing for a single encapsulation per capsule. By adjusting the structure of the charged particles, the number of encapsulation steps and electrode plates is reduced, simplifying the manufacturing process and wiring.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to an electrophoretic electronic paper. Background Technology

[0002] Electronic paper technology is now widely used in everyday life, such as in electronic tags and readers.

[0003] Current electrophoretic electronic paper utilizes electronic ink capsule display technology. In the absence of an electric field, charged pigment particles are uniformly distributed within a capsule. When an electric field is applied, the charged particles move in a fixed direction under the influence of Coulomb force. Two different colored charged particles carry different types of charges, thus displaying patterns of different grayscale levels.

[0004] like Figure 1 and Figure 2 The diagram shows the structure of an existing electrophoretic electronic paper, which includes a positive electrode 1', a negative electrode 2', a capsule 3', white positively charged particles 4', and black negatively charged particles 5'. When the upper positive electrode 1' is positively charged and the lower negative electrode 2' is negatively charged, the black negatively charged particles 5' move towards the positive electrode 1', and the white positively charged particles 4' move towards the negative electrode 2', thus displaying a black image on the electronic paper, and vice versa.

[0005] However, the white positively charged particles 4' and the black negatively charged particles 5' of this structure are made separately, and then the white positively charged particles 4' and the black negatively charged particles 5' are encapsulated in the same capsule 3' respectively. That is, one capsule 3' needs to be encapsulated twice, and two electrode plates are needed, which makes the process complicated, time-consuming and costly, and cannot be promoted on a large scale. Summary of the Invention

[0006] The technical problem to be solved by the present invention is how to adjust the structure of charged particles to reduce the number of encapsulation steps and the number of electrode plates, and improve contrast and transmittance, optimize display effect, and enhance product competitiveness.

[0007] The technical problem to be solved by the present invention is achieved through the following technical solution: To solve the above-mentioned technical problems, the present invention provides an electrophoretic electronic paper, which includes an electrode plate, a capsule, and charged particles. There is only one electrode plate, the capsule is disposed on one side of the electrode plate, and there are multiple charged particles encapsulated in the capsule. Each charged particle includes a positively charged particle and a negatively charged particle that can be combined into a whole. The positively charged particle and the negatively charged particle are each half of the whole, and the positively charged particle and the negatively charged particle are different colors.

[0008] In a preferred embodiment of the electrophoretic electronic paper provided by the present invention, the positively charged particles and the negatively charged particles are both hemispherical in shape, and the shape of the positively charged particles and the negatively charged particles combined into a whole is spherical.

[0009] In a preferred embodiment of the electrophoretic electronic paper provided by the present invention, the positively charged particles and the negatively charged particles are both semi-elliptical in shape, and the shape of the positively charged particles and the negatively charged particles combined into a whole is elliptical.

[0010] In a preferred embodiment of the electrophoretic electronic paper provided by the present invention, the positively charged particles and the negatively charged particles are both square in shape, and the shape of the positively charged particles and the negatively charged particles combined into a whole is rectangular.

[0011] In a preferred embodiment of the electrophoretic electronic paper provided by the present invention, the color of the positively charged particles is white, and the color of the negatively charged particles is black.

[0012] In a preferred embodiment of the electrophoretic electronic paper provided by the present invention, the color of the positively charged particles is yellow, and the color of the negatively charged particles is black.

[0013] In a preferred embodiment of the electrophoretic electronic paper provided by the present invention, the color of the positively charged particles is yellow, and the color of the negatively charged particles is red.

[0014] In a preferred embodiment of the electrophoretic electronic paper provided by the present invention, the electrode plate is a positive electrode plate, and the positive electrode plate is disposed above the capsule.

[0015] In a preferred embodiment of the electrophoretic electronic paper provided by the present invention, the materials of the positively charged particles and the negatively charged particles are the same.

[0016] In a preferred embodiment of the electrophoretic electronic paper provided by the present invention, the positively charged particles and the negatively charged particles have equal masses.

[0017] The present invention has the following beneficial effects: Because the charged particles consist of both positively charged and negatively charged particles that can combine to form a whole, and each half of the charged particle is a component of the whole, applying a positive voltage to the electrode will cause the negatively charged half to rotate towards the electrode, while the positively charged half will rotate away from the electrode, displaying the color of the negatively charged particle, and vice versa. This structure eliminates the need to supply power to another electrode, thus eliminating the need for a second electrode in the manufacturing process, requiring only one electrode. Furthermore, since the positively and negatively charged particles are packaged as a whole, only one type of charged particle is encapsulated, requiring only one encapsulation per capsule. By adjusting the structure of the charged particles, the number of encapsulation steps and electrode components is reduced, simplifying the manufacturing process and wiring. The remaining space can be used for effective display, thereby improving contrast and transmittance, optimizing display effects, and enhancing product competitiveness. Attached Figure Description

[0018] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the upper electrode of a conventional electrophoretic electronic paper when a positive voltage is applied.

[0020] Figure 2 This is a schematic diagram of the structure of the upper electrode of a conventional electrophoretic electronic paper when a negative charge is applied.

[0021] Figure 3 This is a schematic diagram of the structure of an electrophoretic electronic paper electrode plate when a negative voltage is applied, as provided by the present invention.

[0022] Figure 4 for Figure 3 A schematic diagram of the structure of a charged particle.

[0023] Figure 5 This is a schematic diagram of the structure of an electrophoretic electronic paper electrode plate when positively charged, as provided by the present invention.

[0024] Explanation of icon numbers: Plate 1; Capsule 2; Charged particle 3; Positively charged particle 31; Negatively charged particle 32. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] This invention provides an electrophoretic electronic paper, which includes an electrode plate, a capsule, and charged particles. There is only one electrode plate, and the capsule is disposed on one side of the electrode plate. There are multiple charged particles encapsulated in the capsule. Each charged particle includes a positively charged particle and a negatively charged particle that can be combined into a whole. The positively charged particle and the negatively charged particle are each half of the whole. The positively charged particle and the negatively charged particle are different colors.

[0029] Because the charged particles consist of both positively charged and negatively charged particles that can combine to form a whole, and each half of the charged particle is a component of the whole, applying a positive voltage to the electrode will cause the negatively charged half to rotate towards the electrode, while the positively charged half will rotate away from the electrode, displaying the color of the negatively charged particle, and vice versa. This structure eliminates the need to supply power to another electrode, thus eliminating the need for a second electrode in the manufacturing process, requiring only one electrode. Furthermore, since the positively and negatively charged particles are packaged as a whole, only one type of charged particle is encapsulated, requiring only one encapsulation per capsule. By adjusting the structure of the charged particles, the number of encapsulation steps and electrode components is reduced, simplifying the manufacturing process and wiring. The remaining space can be used for effective display, thereby improving contrast and transmittance, optimizing display effects, and enhancing product competitiveness.

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] Example 1, please refer to Figures 3 to 5This invention provides an electrophoretic electronic paper comprising an electrode plate 1, a capsule 2, and charged particles 3. There is only one electrode plate 1, and the capsule 2 is disposed on one side of the electrode plate 1. Multiple charged particles 3 are encapsulated within the capsule 2. Each charged particle 3 includes a positively charged particle 31 and a negatively charged particle 32 that can be combined into a whole. Each positively charged particle 31 and negatively charged particle 32 is half of the whole, and the positively charged particles 31 and negatively charged particles 32 have different colors. Because each charged particle 3 comprises a positively charged particle 31 and a negatively charged particle 32 that can be combined into a whole, and each positively charged particle 31 and negatively charged particle 32 are half of the whole, applying a positive voltage to the electrode plate 1 will cause the half of the negatively charged particle 32 to rotate towards the electrode plate 1, while the half of the positively charged particle 31 will rotate away from the electrode plate 1, displaying the color of the negatively charged particle 32, and vice versa. This structure eliminates the need to supply power to another electrode plate 1, thus eliminating the need for another electrode plate 1 during the manufacturing process, resulting in only one electrode plate 1. Furthermore, since the positively charged particle 31 and the negatively charged particle 32 are packaged as a single unit into the capsule 2, only one type of charged particle 3 is encapsulated, requiring only one encapsulation per capsule 2. By adjusting the structure of the charged particle 3, the number of encapsulation steps and electrode plates 1 is reduced, simplifying the manufacturing process and wiring. The remaining space can be used for effective display, thereby improving contrast and transmittance, optimizing display effects, and enhancing product competitiveness.

[0032] Example 2, please refer to Figures 3 to 5 As a further optimization of Embodiment 1, in this embodiment, both the positively charged particle 31 and the negatively charged particle 32 are hemispherical in shape, and the combined shape of the positively charged particle 31 and the negatively charged particle 32 is spherical. Alternatively, both the positively charged particle 31 and the negatively charged particle 32 can be semi-elliptical, and the combined shape of the positively charged particle 31 and the negatively charged particle 32 is elliptical. Furthermore, both the positively charged particle 31 and the negatively charged particle 32 can be square, and the combined shape of the positively charged particle 31 and the negatively charged particle 32 is rectangular.

[0033] Furthermore, the color of positively charged particle 31 is white, and the color of negatively charged particle 32 is black. Alternatively, the color of positively charged particle 31 could be yellow, and the color of negatively charged particle 32 black. Or, the color of positively charged particle 31 could be yellow, and the color of negatively charged particle 32 red.

[0034] Furthermore, electrode 1 is a positive electrode 1, which is positioned above or below capsule 2. Of course, electrode 1 can also be a negative electrode 1, which is positioned above or below capsule 2.

[0035] Furthermore, the positively charged particles 31 and the negatively charged particles 32 are made of the same material, and their masses are equal to ensure the rotational effect.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. An electrophoretic electronic paper, characterized in that, It includes an electrode plate, a capsule, and charged particles. There is only one electrode plate, and the capsule is disposed on one side of the electrode plate. There are multiple charged particles encapsulated in the capsule. Each charged particle includes a positively charged particle and a negatively charged particle that can be combined into a whole. The positively charged particle and the negatively charged particle are each half of the whole. The positively charged particle and the negatively charged particle are different colors.

2. The electrophoretic electronic paper according to claim 1, characterized in that, Both the positively charged and negatively charged particles are hemispherical in shape, and the combined shape of the positively charged and negatively charged particles is spherical.

3. The electrophoretic electronic paper according to claim 1, characterized in that, The positively charged particles and the negatively charged particles are both semi-elliptical in shape, and the shape of the positively charged particles and the negatively charged particles combined into a whole is elliptical.

4. The electrophoretic electronic paper according to claim 1, characterized in that, The positively charged particles and the negatively charged particles are both square in shape, and the combined shape of the positively charged particles and the negatively charged particles is rectangular.

5. The electrophoretic electronic paper according to claim 1, characterized in that, Positively charged particles are white, and negatively charged particles are black.

6. The electrophoretic electronic paper according to claim 1, characterized in that, Positively charged particles are yellow, and negatively charged particles are black.

7. The electrophoretic electronic paper according to claim 1, characterized in that, Positively charged particles are yellow, and negatively charged particles are red.

8. The electrophoretic electronic paper according to claim 1, characterized in that, The electrode plate is a positive electrode plate, and the positive electrode plate is disposed above the capsule.

9. The electrophoretic electronic paper according to claim 1, characterized in that, The materials with positively charged particles and those with negatively charged particles are the same.

10. The electrophoretic electronic paper according to claim 1, characterized in that, Positively charged particles and negatively charged particles have the same mass.

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