Capsule unit for display, display structure, display device and manufacturing method

Abstract

The application discloses a capsule unit for display, a display structure, a display device and a manufacturing method, and belongs to the technical field of display. The capsule unit comprises a shell, a closed cavity is formed in the shell, and electrophoretic liquid is filled in the cavity; a partition plate is rotationally connected in the cavity, and at least two containing cavities are defined in the cavity, charged particles of the same color are arranged in each containing cavity, the charged particles in each containing cavity are different in color, the charged particles of each color can be driven by a corresponding electric field to approach a display side of the capsule unit relative to charged particles of other colors, and the electric fields corresponding to the charged particles of different colors are different in electric field direction and / or field strength. According to the capsule unit, mutual collision between the charged particles of different colors is avoided, the response time is shortened, the non-displayed charged particles are separated, the influence on display is reduced, and the contrast is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of display, and particularly relates to a capsule unit for display, a display structure, a display device and a manufacturing method. BACKGROUND

[0002] People's pursuit of information acquisition is getting higher and higher, and traditional newspapers and magazines have gradually been replaced by electronic media. Electronic media brings greater convenience to people living in an information society, especially the emergence of electronic paper, which overcomes the shortcomings of high power consumption and inconvenience of general electronic media.

[0003] The existing electronic paper types mainly include microcapsule type and microcup type, mainly adopting electrophoretic display technology, and displaying by mixing particles into electrophoretic fluid. The microcapsule type adopts color particle display, and realizes gray scale display by controlling the voltage at both ends. The microcup type adopts color liquid and particle display, both of which mix particles into electrophoretic fluid. However, when changing the picture, the current electronic paper has the problem of slow response, and when displaying, the non-display particles also affect the display, causing color mixing and reducing the contrast. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a capsule unit for display, a display structure, a display device and a manufacturing method, which has short response time and high contrast.

[0005] In a first aspect, the present application provides a capsule unit for display, comprising: a shell, which is formed with a closed cavity, and the cavity is filled with electrophoretic fluid; a partition plate, which is rotationally connected in the cavity, and defines at least two containing cavities in the cavity, and each containing cavity is provided with charged particles of the same color, and the charged particles of each color are different in color from each other, and the charged particles of each color can be driven by a corresponding electric field to approach the display side of the capsule unit relative to the charged particles of other colors, and the electric field directions and / or field strengths of the electric fields corresponding to the charged particles of different colors are different.

[0006] According to the capsule unit of the present application, the partition plate is arranged in the shell to separate the charged particles of different colors. During display, the charged particles of the corresponding color push the partition plate to rotate and move to the display side for display, thereby avoiding the mutual collision between the charged particles of different colors, shortening the response time, separating the non-display charged particles, reducing the influence on display, and improving the contrast.

[0007] According to an embodiment of the present application, the shell comprises: a base provided with a first cavity open upward; and an upper cover provided with a second cavity open downward, the upper cover being covered on the base, and the first cavity and the second cavity cooperating to form the cavity.

[0008] According to one embodiment of this application, the upper side of the cover is the display side, the top of the second cavity is provided with a transparent display area, the bottom of the second cavity is provided with a black blocking area, and the top of the black blocking area is in contact with the bottom of the display area.

[0009] According to one embodiment of this application, the partition plate includes: a rotating shaft rotatably disposed in the cavity; and a plurality of baffles disposed on the rotating shaft, wherein the gap width between the baffles and the cavity wall is less than the minimum width of a charged particle.

[0010] According to one embodiment of this application, both the first cavity and the second cavity are hemispherical.

[0011] According to one embodiment of this application, charged particles of different colors have different electrical properties and / or charge amounts.

[0012] According to one embodiment of this application, the partition plate defines a first receiving cavity, a second receiving cavity, and a third receiving cavity within the cavity. The first receiving cavity contains red charged particles, the second receiving cavity contains green charged particles, and the third receiving cavity contains blue charged particles.

[0013] According to one embodiment of this application, the red and green charged particles have positive charges, the blue charged particles have negative charges, and the charge of the red charged particles is greater than the charge of the green charged particles.

[0014] Secondly, this application also provides a display structure, including a first electrode, a second electrode, and a capsule unit according to any of the above embodiments, wherein the first electrode and the second electrode are disposed on opposite sides of the capsule unit.

[0015] According to the display structure of this application, by separating charged particles of different colors in the capsule unit, charged particles of different colors will not collide with each other, thereby shortening the response time. At the same time, the impact of non-display charged particles on the display is reduced, thereby improving the contrast.

[0016] Thirdly, this application also provides a display structure, including a TFT substrate, an adhesive layer, a capsule unit layer and an ITO layer arranged sequentially from bottom to top, wherein the capsule unit layer includes a plurality of capsule units according to any one of the above embodiments, and the TFT substrate and the ITO layer are configured to apply an electric field to the capsule units.

[0017] According to the display structure of this application, by separating charged particles of different colors in the capsule unit, charged particles of different colors will not collide with each other, thereby shortening the response time. At the same time, the impact of non-display charged particles on the display is reduced, thereby improving the contrast.

[0018] Fourthly, this application also provides a display device, including a display structure according to any of the above embodiments.

[0019] According to the display device of this application, by separating charged particles of different colors in the capsule unit, the charged particles of different colors will not collide with each other, thereby shortening the response time. At the same time, the influence of non-display charged particles on the display is reduced, thereby improving the contrast.

[0020] Fifthly, this application also provides a method for manufacturing a capsule unit, comprising: forming a base and a top cover, the base having an upwardly opening first cavity, the top cover having a downwardly opening second cavity and a gating hole communicating with the second cavity; providing a partition plate between the base and the top cover, wherein when the top cover is closed on the base, the partition plate defines at least two receiving cavities within the cavity formed by the cooperation of the first cavity and the second cavity; adding charged particles of the same color to each receiving cavity, wherein the charged particles in each receiving cavity are of different colors, and the charged particles of different colors move to the display side under the drive of different electric fields; fusing the base and the top cover together, wherein the first cavity and the second cavity cooperate to form a cavity; injecting electrophoretic liquid into the cavity through the gating hole; and fusing the gating hole.

[0021] According to the manufacturing method of the capsule unit of this application, by setting a partition plate in the cavity of the base and the top cover, charged particles of different colors are separated. During display, the charged particles of the corresponding color push the partition plate to rotate and move closer to the display side for display, thereby avoiding mutual collision between charged particles of different colors, shortening the response time, and at the same time, the non-display charged particles are separated, reducing the impact on the display and improving the contrast.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is one of the planar structural schematic diagrams of the capsule unit provided in the embodiments of this application;

[0025] Figure 2 This is a schematic diagram of the structure of the base provided in the embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the structure of the top cover provided in an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the structure of the partition plate provided in the embodiment of this application;

[0028] Figure 5 This is a three-dimensional structural schematic diagram of the capsule unit provided in the embodiments of this application;

[0029] Figure 6 This is a second schematic diagram of the planar structure of the capsule unit provided in the embodiments of this application;

[0030] Figure 7 This is one of the schematic diagrams illustrating the driving principle of the capsule unit provided in the embodiments of this application;

[0031] Figure 8 This is the second schematic diagram of the driving principle of the capsule unit provided in the embodiments of this application;

[0032] Figure 9 This is the third schematic diagram of the driving principle of the capsule unit provided in the embodiments of this application;

[0033] Figure 10 This is one of the schematic diagrams of the display structure provided in the embodiments of this application;

[0034] Figure 11 This is a second schematic diagram of the display structure provided in the embodiments of this application;

[0035] Figure 12 This is a schematic flowchart of the manufacturing method of the capsule unit provided in the embodiments of this application.

[0036] Figure label:

[0037] Capsule unit 100;

[0038] The shell 110, the cavity 120, the first receiving cavity 121, the second receiving cavity 122, and the third receiving cavity 123;

[0039] Divider plate 130, rotating shaft 131, baffle plate 132;

[0040] Charged particle 140, red charged particle 141, green charged particle 142, blue charged particle 143;

[0041] Base 150, first cavity 151, first groove 152, top cover 160, second cavity 161, second groove 162, pouring hole 163, display area 164, black covering area 165;

[0042] First electrode 200, second electrode 300;

[0043] TFT substrate 400, adhesive layer 500, capsule unit layer 600, ITO layer 700, encapsulation layer 800, protective film 900. Detailed Implementation

[0044] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying 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 are only used to explain this application, and should not be construed as limiting this application.

[0045] Reference Figure 1 One embodiment of this application provides a capsule unit for display.

[0046] In this embodiment, the capsule unit includes a shell 110 and a partition plate 130. The shell 110 forms a closed cavity 120, which is filled with an electrophoretic solution (not shown in the figure). The partition plate 130 is rotatably connected to the cavity 120 and defines at least two receiving cavities within the cavity 120. Each receiving cavity contains charged particles 140 of the same color. The charged particles 140 in each receiving cavity are of different colors. Each colored charged particle 140 can be driven by a corresponding electric field to approach the display side of the capsule unit relative to other colored charged particles 140. The electric fields corresponding to the charged particles 140 of different colors have different electric field directions and / or field strengths.

[0047] The capsule unit 100 can be used in display devices such as electronic paper. After the display device is packaged, it is usually designed with a display surface for displaying the image to the user, and the side of the capsule unit 100 facing this display surface is the display side.

[0048] During display, the capsule unit 100 needs to be placed in an electric field, and the charged particles 140 move under the drive of the electric field. The electric field can be provided by electrodes disposed on opposite sides of the capsule unit 100, and the electric field can be a uniform electric field. In a uniform electric field, the direction of motion of the charged particles 140 is the same as or opposite to the direction of the electric field. Therefore, the side where one electrode is located can serve as the display side.

[0049] It should be noted that charged particles 140 of different colors have different characteristics, resulting in different responsiveness to electric fields. These characteristics may include electrical properties, charge quantity, shape, and mass. Response capability may include the speed and direction of movement under the influence of an electric field. Therefore, by applying a corresponding electric field to the capsule unit 100, the capsule unit 100 can display a corresponding color. Alternatively, the color displayed by the capsule unit 100 can be changed by altering the electric field applied to it. The specific parameters of the corresponding electric field need to be designed based on the characteristics of the charged particles 140; this embodiment does not impose any limitations on this.

[0050] In some embodiments, the number of receiving cavities can be two, three, or four, and the volume of each receiving cavity can be the same. The charged particles 140 can drive the partition plate 130 to rotate during operation. When the partition plate 130 rotates, the positions of each receiving cavity change, thus different colored charged particles 140 are housed in different receiving cavities, avoiding mutual collisions. When a charged particle 140 of a certain color reaches the display side, the corresponding receiving cavity also rotates to the display side.

[0051] As an example, there can be two cavities, and the two cavities are respectively equipped with black charged particles and white charged particles. By applying a first electric field to the capsule unit 100, the black charged particles are brought closer to the display side to display black; or by applying a second electric field to the capsule unit 100, the white charged particles are brought closer to the display side to display white.

[0052] In this example, the black charged particles can have a positive charge, and the white charged particles can have a negative charge. In this case, the first and second electric fields can have different directions. Alternatively, the black and white charged particles can have the same charge, but the charge of the black charged particles is greater than that of the white charged particles. In this case, the electric field strength of the first electric field can be greater than that of the second electric field.

[0053] In another example, there can be three cavities, each containing a black, white, and yellow charged particle, respectively. These three different colored charged particles can have different electrical properties, charge amounts, shapes, or masses. Of course, the three different colors can also be red, green, and blue, or red, green, and yellow, etc.

[0054] In another example, there can be four cavities, each containing a red, green, blue, and yellow charged particle. The four different colored charged particles can have different electrical properties, charge amounts, shapes, or masses.

[0055] According to the capsule unit of this application, by providing a partition plate 130 inside the housing 100, charged particles 140 of different colors are separated. During display, the charged particles 140 of the corresponding color push the partition plate to rotate and move to the display side for display, thereby avoiding mutual collision between charged particles 140 of different colors, shortening the response time. At the same time, the non-display charged particles 140 are separated, reducing their impact on the display and improving the contrast.

[0056] Reference Figure 2 and Figure 3In some embodiments of this application, the housing 110 may include a base 150 and a top cover 160. The base 150 has a first cavity 151 that opens upward; the top cover 160 has a second cavity 161 that opens downward. The top cover 160 covers the base 150, and the first cavity 151 and the second cavity 161 cooperate to form a cavity 120.

[0057] In some embodiments, the base 150 and the top cover 160 may be made of plastic and manufactured using an injection molding process. The base 150 and the top cover 160 may be fused together using a welding process to seal the cavity 120.

[0058] In some embodiments, the first cavity 151 and the second cavity 161 may have the same shape. When the top cover 160 is closed on the base 150, the opening edge of the first cavity 151 is aligned with and fits the opening edge of the second cavity 161, making the joint between the first cavity 151 and the second cavity 161 smooth, so as to facilitate the movement of charged particles 140 within the cavity 120.

[0059] In some embodiments, the top cover 160 may also be provided with a gating hole 163 communicating with the first cavity 161. After the base 150 and the top cover 160 are fused together, the gating hole 163 is used to inject electrophoretic fluid into the cavity 120. After the electrophoretic fluid injection is completed, the gating hole 163 needs to be sealed (e.g., fused together) to close the cavity 120.

[0060] In some embodiments of this application, both the first cavity 151 and the second cavity 161 are hemispherical.

[0061] It is understandable that when both the first cavity 151 and the second cavity 161 are hemispherical, the resulting cavity 120 is spherical. Since the partition plate 130 rotates under the influence of the charged particles 140 when the capsule unit 100 is displayed, the position of the receiving cavities changes. However, when cavity 120 is spherical, the volume of each receiving cavity remains constant regardless of the rotation angle of the partition plate 130.

[0062] Reference Figure 4 and Figure 5 In some embodiments of this application, the partition plate 130 may include a rotating shaft 131 and a plurality of baffles 132. The rotating shaft 131 is rotatably disposed in the cavity 120; the baffles 132 are disposed on the rotating shaft 131, and the gap width between the baffles 132 and the cavity wall of the cavity 120 is less than the minimum width of the charged particles.

[0063] It should be noted that a first groove 152 can be provided on the base 150, and a second groove 162 can be provided on the top cover 160. After the top cover 160 is closed on the base 150, the first groove 152 and the second groove 162 cooperate to form a slot, and both ends of the rotating shaft 131 are inserted into the slot, so that the rotating shaft 131 is not easy to disengage when rotating.

[0064] During assembly, the rotating shaft 131 can be placed in the first groove 152 first, and then the upper cover 160 can be placed on the base 150 so that the second groove 162 covers the rotating shaft 131, and then welding can be performed. The assembly is simple.

[0065] In some embodiments, the cavity 120 is spherical, the baffle 132 can be semi-circular, and the rotating shaft 131 passes through the center of the cavity 120 when it is set. The radius of the baffle 132 can be smaller than the radius of the cavity 120 to form a gap. A gap width smaller than the minimum width of a charged particle ensures that when the partition plate 130 rotates, the charged particles 140 will not transfer to adjacent receiving cavities.

[0066] Reference Figure 6 In some embodiments of this application, the upper side of the cover 160 is the display side, the top of the second cavity 161 is provided with a transparent display area 164, the bottom of the second cavity 161 is provided with a black blocking area 165, and the top of the black blocking area 165 is in contact with the bottom of the display area 164.

[0067] In some embodiments, the top of the top cover 160 may be made of a transparent material to form the display area 164. The bottom of the top cover 160 may be made of an opaque material to form a black blocking area 165. Alternatively, the entire top cover 160 may be made of a transparent material, while a black film may be applied to the bottom to form the display area 164 and the black blocking area 165.

[0068] It should be noted that when the capsule unit 100 is displaying, the cavity containing the charged particles 140 displaying the color is located directly above. The black blocking area 165 blocks all cavities except the cavity containing the charged particles 140 displaying the color in the vertical direction. This prevents the colors of the charged particles 140 in other cavities from interfering with the display.

[0069] In some embodiments, the partition 130 divides the cavity 120 with baffles 132 to form a plurality of receiving cavities. When the capsule unit 100 is displayed, the intersection point of the extension lines of the baffles 132 on both sides of the receiving cavity located directly above and the cavity 120 is located at the top of the black shading area 165.

[0070] In some embodiments, the top cover 160 may be a curved plate-like structure, and is recessed upward to form a second cavity 161. The top cover 160 is thinner for easy display. For example, the top cover 160 may be a hemispherical plate-like structure, and the projection of the display area 164 onto the horizontal plane is circular, with the center of the circle overlapping the vertex.

[0071] In this embodiment, the base 150 may be cylindrical and recessed downward to form a first cavity 151. The bottom surface of the base 150 is a circular plane, which facilitates the installation of the base 150.

[0072] To more clearly illustrate the principle of the capsule unit provided in this application, the following examples are provided.

[0073] In some examples, charged particles 140 of different colors have different electrical properties and / or charge amounts.

[0074] It is understandable that charged particles 140 with positive and negative charges move in different directions in the same electric field. Therefore, charged particles 140 of different colors can have different charges, and thus, by applying electric fields in different directions, the charged particles 140 of the corresponding colors can be controlled to move closer to the display side.

[0075] Charged particles 140 with different charges experience different electric forces in the same electric field, resulting in different movement speeds. Faster-moving charged particles 140 can be closer to the display side for display, while slower-moving charged particles 140 are blocked by the partition plate 130 and kept away from the display side, thus not affecting the display. Therefore, charged particles 140 of different colors can have different charges to control which colored charged particles 140 are closer to the display side. Specifically, when it is necessary to display slower-moving charged particles 140, a weaker electric field can be applied, and the faster-moving charged particles 140 can be configured to be unable to be driven by this weaker electric field, thereby allowing the slower-moving charged particles 140 to be displayed.

[0076] Reference Figure 7 , Figure 8 , Figure 9 In some examples, the partition plate 130 defines a first receiving cavity 121, a second receiving cavity 122 and a third receiving cavity 123 within the cavity 120. The first receiving cavity 121 contains red charged particles 141, the second receiving cavity 122 contains green charged particles 142 and the third receiving cavity 123 contains blue charged particles 143.

[0077] The capsule unit 100 can display red, green, and blue respectively. After being packaged into a display device, the display structure composed of multiple capsule units 100 displays using red, green, and blue as the base colors, thereby providing users with a color image.

[0078] In this example, red charged particle 141 and green charged particle 142 have positive charges, blue charged particle 143 has negative charges, and the charge of red charged particle 141 is greater than the charge of green charged particle 142.

[0079] It is understandable that the charge of the red charged particle 141 is greater than that of the green charged particle 142, therefore the speed of the red charged particle 141 is greater than that of the green charged particle 142.

[0080] In the example, the upper side of capsule unit 100 serves as the display side. By keeping the voltage on the upper side of capsule unit 100 constant at 0V, different colors can be displayed by adjusting the lower voltage. When the lower voltage is -15V, the blue charged particle 143 moves upward under the influence of an upward electric field, while the red charged particle 141 and green charged particle 142 move downward under the influence of a downward electric field, at which point capsule unit 100 displays blue. When the lower voltage is 15V, the blue charged particle 143 moves downward under the influence of a downward electric field, while the red charged particle 141 and green charged particle 142 move upward under the influence of an upward electric field. However, because the speed of the red charged particle 141 is greater than that of the green charged particle 142, capsule unit 100 ultimately displays red. When the voltage on the lower side is 5V, the blue charged particle 143 moves downward due to the downward electric field force, the green charged particle 142 moves directly upward due to the upward electric field force, and the red charged particle 141 cannot be driven due to the low voltage. The red charged particle 141 is located at the bottom, and the capsule unit 100 ultimately displays green.

[0081] Reference Figure 10 One embodiment of this application also provides a display structure, including a first electrode 200, a second electrode 300, and a capsule unit 100 according to any of the above embodiments, wherein the first electrode 200 and the second electrode 300 are disposed on opposite sides of the capsule unit 100. The specific structure and principle of the capsule unit 100 can be referred to the above embodiments, and will not be repeated here.

[0082] In this embodiment, the first electrode 200 and the second electrode 300 can apply a uniform electric field to the capsule unit 100. The charged particles 140 inside the capsule unit 100 can move toward the first electrode 200 or the second electrode 300, and the side where the first electrode 200 or the second electrode 300 is located can serve as the display side.

[0083] According to the display structure of this application, by separating the charged particles 140 of different colors in the capsule unit 100, the charged particles 140 of different colors will not collide with each other, thereby shortening the response time. At the same time, the influence of non-display charged particles 140 on the display is reduced, thereby improving the contrast. Of course, the display structure can also adopt the technical solutions in the above embodiments, which also have the corresponding technical effects.

[0084] Reference Figure 11 An embodiment of this application also provides a display structure, including a TFT substrate 400, an adhesive layer 500, a capsule unit layer 600 and an ITO layer 700 arranged sequentially from bottom to top. The capsule unit layer 600 includes a plurality of capsule units 100 according to any one of the above embodiments. The TFT substrate 400 and the ITO layer 700 are configured to apply an electric field to the capsule unit 100.

[0085] Understandably, the ITO layer 700 serves as a display electrode, providing control voltage. The TFT substrate 400 can be equipped with multiple controllable electrodes, which can control the switching of each capsule unit 100. By providing voltage to each electrode, the TFT substrate 400, in conjunction with the ITO layer 700, forms an electric field within the capsule unit 100. The adhesive layer 500 is used to fix the capsule unit 100 onto the TFT substrate 400.

[0086] In this embodiment, an encapsulation layer 800 and a protective film 900 may be sequentially stacked on top of the ITO layer 700. The encapsulation layer 800 encapsulates the components, integrating them into a single unit. The protective film 900 provides protection, preventing damage to the components. The specific structure and principle of the capsule unit 100 can be referred to in the above embodiment, consisting of a TFT substrate 400, an adhesive layer 500, an ITO layer 700, an encapsulation layer 800, and a protective film 900. These are mature technologies and will not be elaborated upon further in this embodiment.

[0087] According to the display structure of this application, by separating the charged particles 140 of different colors in the capsule unit 100, the charged particles 140 of different colors will not collide with each other, thereby shortening the response time. At the same time, the influence of non-display charged particles 140 on the display is reduced, thereby improving the contrast. Of course, the display structure can also adopt the technical solutions in the above embodiments, which also have the corresponding technical effects.

[0088] One embodiment of this application also provides a display device, including a display structure according to any of the above embodiments. The specific structure and principle of the display structure are as described in the above embodiments, and will not be repeated here.

[0089] In some embodiments, the display device may be electronic paper.

[0090] According to the display device of this application, by separating the charged particles 140 of different colors in the capsule unit 100, the charged particles 140 of different colors will not collide with each other, thereby shortening the response time. At the same time, the influence of non-display charged particles 140 on the display is reduced, thereby improving the contrast ratio. Of course, the display device can also adopt the technical solutions in the above embodiments, which also have the corresponding technical effects.

[0091] Reference Figure 12 An embodiment of this application also provides a method for manufacturing a capsule unit.

[0092] In this embodiment, the method for manufacturing the capsule unit includes:

[0093] Step 10: Form a base 150 and a top cover 160. The base 150 has a first cavity 151 that opens upward, and the top cover 160 has a second cavity 161 that opens downward and a pouring hole 163 that communicates with the second cavity.

[0094] Step 20: A partition plate 130 is provided between the base 150 and the top cover 160. When the top cover 160 is closed on the base 150, the partition plate 130 defines at least two receiving cavities in the cavity 120 formed by the cooperation of the first cavity 151 and the second cavity 161.

[0095] Step 30: Add charged particles 140 of the same color to each receiving cavity. The charged particles 140 in each receiving cavity are of different colors. The charged particles 140 of different colors move to the display side under the drive of different electric fields.

[0096] Step 40: Weld the base 150 and the top cover 160 together, and the first cavity 151 and the second cavity 161 cooperate to form the cavity 120;

[0097] Step 50: Inject electrophoretic solution into cavity 120 through gating hole 163;

[0098] Step 60: Weld the gating hole 163 together.

[0099] In some embodiments, the base 150 and the top cover 160 may be made of plastic and manufactured using an injection molding process. The first cavity 151 and the second cavity 161 may have the same shape. When the top cover 160 is closed on the base 150, the opening edge of the first cavity 151 is aligned with and fits the opening edge of the second cavity 161, making the joint between the first cavity 151 and the second cavity 161 smooth.

[0100] In some embodiments, the partition plate 130 may include a rotating shaft 131 and a baffle 132. It should be noted that a first groove 152 may be provided on the base 150, and a second groove 162 may be provided on the top cover 160. After the top cover 160 is closed on the base 150, the first groove 152 and the second groove 162 cooperate to form a slot, and both ends of the rotating shaft 131 are inserted into the slot, so that the rotating shaft 131 is not easily dislodged when rotating.

[0101] It should be noted that before the upper cover 160 is closed onto the base 150, charged particles 140 can be placed into the receiving cavity inside the base 150. The charged particles 140 in the receiving cavity of the upper cover 160 can be added through the pouring hole 163 after the upper cover 160 is closed onto the base 150.

[0102] In some embodiments, a transparent display area 164 may be formed at the top bottom of the upper cover 160, and a black blocking area 165 may be formed at the bottom bottom of the upper cover 160, with the top end of the black blocking area 165 contacting the bottom end of the display area 164. When the capsule unit 100 is displayed, the receiving cavity where the charged particles 140 displaying the color are located is directly above. The black blocking area 165 blocks the receiving cavities other than the receiving cavity where the charged particles 140 displaying the color are located in the vertical direction.

[0103] In some embodiments, the top of the top cover 160 may be made of a transparent material to form the display area 164. The bottom of the top cover 160 may be made of an opaque material to form a black blocking area 165. Alternatively, the entire top cover 160 may be made of a transparent material, while a black film may be applied to the bottom to form the display area 164 and the black blocking area 165.

[0104] The base 150 and the top cover 160 are connected by a welding process. The base 150 and the top cover 160 can be placed in a welding mold. The seam of the welding mold will be thinner. The mold is placed in a special furnace for heating. After the plastic at the seam melts and fuses together, the mold is removed and cooled.

[0105] After the base 150 and the top cover 160 have cooled, electrophoretic fluid is injected into the cavity 120 through the injection hole 163. After the electrophoretic fluid injection is completed, the injection hole 163 is fused and sealed to close the cavity 120.

[0106] The specific structure of the capsule unit 100 manufactured in this embodiment can also refer to the above embodiments.

[0107] According to the manufacturing method of the capsule unit of this application, a partition plate 130 is provided in the cavity 120 of the base 150 and the top cover 160 to separate charged particles 140 of different colors. During display, the charged particles 140 of the corresponding color push the partition plate 130 to rotate and move closer to the display side for display, thereby avoiding mutual collision between charged particles 140 of different colors, shortening the response time. At the same time, the non-display charged particles 140 are separated, reducing their impact on the display and improving the contrast. Of course, the display device can also adopt the technical solutions of the above embodiments, which also have the corresponding technical effects.

[0108] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0109] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0110] In the description of this application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0111] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0112] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0113] 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 that 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.

[0114] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A capsule unit for display, characterized in that, The capsule unit comprises: a shell forming a closed cavity, the cavity being filled with electrophoretic fluid; a partition plate rotatably connected in the cavity and defining at least two containing cavities in the cavity, each containing cavity being provided with charged particles of the same color, the charged particles in each containing cavity being different in color, and each color of charged particles being capable of being driven by a corresponding electric field to move towards the display side of the capsule unit relative to other colors of charged particles, the electric fields corresponding to different colors of charged particles being different in electric field direction and / or field strength; wherein the partition plate rotates under the driving of the charged particles to change the position of each containing cavity.

2. The capsule unit according to claim 1, characterized in that The shell comprises: a base provided with a first cavity open upward; an upper cover provided with a second cavity open downward, the upper cover being combined with the base, and the first cavity and the second cavity cooperating to form the cavity.

3. The capsule unit according to claim 2, characterized in that The upper side of the upper cover is the display side, the second cavity is provided with a transparent display area at the top, and the second cavity is provided with a black shielding area at the bottom, the top end of the black shielding area being in contact with the bottom end of the display area.

4. The capsule unit according to claim 2, characterized in that The partition plate comprises: a rotating shaft rotatably arranged in the cavity; a plurality of baffles arranged on the rotating shaft, the gap between the baffles and the cavity wall being smaller than the minimum width of the charged particles.

5. The capsule unit according to claim 2, characterized in that The first cavity and the second cavity are both semispherical.

6. The capsule unit according to any one of claims 1-5, characterized in that, Different colors of charged particles have different electric properties and / or charge amounts.

7. The capsule unit according to any one of claims 1-5, characterized in that, The partition plate defines a first containing cavity, a second containing cavity and a third containing cavity in the cavity, the first containing cavity is provided with red charged particles, the second containing cavity is provided with green charged particles, and the third containing cavity is provided with blue charged particles.

8. The capsule unit according to claim 7, characterized in that The red charged particles and the green charged particles have positive charges, and the blue charged particles have negative charges, and the charge amount of the red charged particles is greater than that of the green charged particles.

9. A display structure, characterized by The capsule unit comprises a first electrode and a second electrode arranged on opposite sides of the capsule unit.

10. A display structure, characterized by The display structure comprises a TFT substrate, a bonding adhesive layer, a capsule unit layer and an ITO layer arranged in sequence from bottom to top, the capsule unit layer comprises a plurality of capsule units according to any one of claims 1-8, and the TFT substrate and the ITO layer are configured to apply an electric field to the capsule units.

11. A display device, characterized by comprising: The display structure comprises a first electrode and a second electrode arranged on opposite sides of the capsule unit.

12. A method of manufacturing a capsule unit, characterized by, The display structure comprises: forming a base and an upper cover, the base being provided with a first cavity open upward, and the upper cover being provided with a second cavity open downward and a pouring hole communicating with the second cavity; arranging a rotatable partition plate between the base and the upper cover, the partition plate defining at least two containing cavities in the cavity formed by the first cavity and the second cavity in cooperation when the upper cover is combined with the base, and the partition plate rotating under the driving of the charged particles to change the position of each containing cavity; The same color charged particles are added into each of the accommodating cavities, the charged particles in each of the accommodating cavities are different in color, and the charged particles of different colors move to the display side under the driving of different electric fields; The base and the upper cover are fusion welded, and the first cavity and the second cavity cooperate to form the cavity; The electrophoretic fluid is injected into the cavity through the injection hole; The injection hole is fused.

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