Display unit and display device

Abstract

The invention provides a display unit and display equipment. The display unit includes: a first substrate; the second substrate is arranged opposite to the first substrate; the pixel wall is arranged between the first substrate and the second substrate, and a closed cavity is defined by the pixel wall, the first substrate and the second substrate; the light control board comprises at least two blades, and the at least two blades are rotationally connected into the closed cavity; a reflecting layer or a light absorbing layer with a preset color is arranged on the surface of each blade; two of the at least two blades have opposite electrical properties or opposite magnetic properties; and the driving electrodes are at least arranged on two of the first substrate, the second substrate and the pixel wall along the rotating direction of the blade, and are used for driving the light control plate to rotate to a corresponding angle position so as to display corresponding brightness. According to the display unit, the problems that black spots appear when electrowetting displays white, ink is split during shrinkage and microcapsules are coagulated can be solved, and the response rate is increased.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display unit and a display device. Background Art

[0002] Electronic paper (E-paper) is a new type of display technology that has gained popularity due to its advantages such as lightness, portability, and low power consumption. E-paper typically uses electrophoretic display (EPD) technology as its display panel, and its display effect is close to that of natural paper.

[0003] Currently, mainstream electrophoretic display technologies include microcapsule electrophoresis (ME) and electrowetting display (EWD). Traditional EWD electronic paper modulates the interfacial tension between solids and liquids, changing the wettability (i.e., contact angle) of the solid-liquid interface and causing the droplet to deform. ME technology uses an external electric field to control the movement of microcapsules of different colors and charges, thereby achieving the display of different colors.

[0004] However, traditional electrowetting display technology will have black spots when displaying white, and the ink is prone to splitting during the ink shrinkage process; microcapsule electrophoresis technology has a long response time for the display panel because the charged microcapsules are easily condensed into clumps due to static electricity, which affects the display effect. Summary of the Invention

[0005] The present application provides a display unit and a display device, aiming to solve the problems in the prior art of electrophoretic display panels, such as the tendency of black spots to appear when the electrowetting display technology displays white, the tendency of ink to split when it shrinks, and the tendency of microcapsules to condense into clusters, resulting in a long response time.

[0006] In order to solve the above technical problems, the first technical solution provided by this application is to provide a display unit. The display unit includes: a first substrate; a second substrate, disposed opposite to the first substrate; The pixel wall is disposed between the first substrate and the second substrate, and is surrounded by the first substrate and the second substrate to form a closed cavity; The light control panel comprises at least two blades, the at least two blades being rotatably connected to a closed cavity; the surfaces of the blades are provided with a reflective layer or a light-absorbing layer of a preset color; two of the at least two blades have opposite electrical properties or opposite magnetic properties; The driving electrodes are arranged on at least two of the first substrate, the second substrate and the pixel wall along the rotation direction of the blades, and are used to drive the light control panel to rotate to a corresponding angular position to display corresponding brightness.

[0007] In some embodiments, the light control panel includes two coaxially arranged blades, with an angle of 180° between the two blades; the rotation axis of the blades is located on the central axis of the closed cavity; the surface of each blade is provided with a white reflective layer; and a light absorbing layer is provided on a side of the second substrate adjacent to the first substrate; The two blades carry the same amount of charge or the same magnetic moment modulus; the driving electrodes include a first electrode, a second electrode, a third electrode and a fourth electrode; the first electrode is arranged on a side of the first substrate close to the second substrate; the second electrode is arranged on a side of the light absorbing layer close to the first substrate; the third electrode and the fourth electrode are respectively arranged on two opposite pixel walls along the rotation direction of the blades.

[0008] In some embodiments, the first electrode is disposed opposite to the second electrode; the third electrode is disposed opposite to the fourth electrode; In the bright state, the third electrode and the fourth electrode have opposite electrical properties and the absolute values ​​of their voltages relative to the reference point are equal, or the third electrode and the fourth electrode have opposite magnetic properties and the magnetic moment moduli are equal, so as to drive the light control plate to rotate to an angular position parallel to the first substrate; In the gray state, the first electrode and the third electrode have the same electrical or magnetic properties, and the second electrode and the fourth electrode have the same electrical or magnetic properties and are opposite to the electrical or magnetic properties of the first electrode. By controlling the absolute value of the voltage or the magnetic moment modulus of the first electrode and the third electrode, and controlling the absolute value of the voltage or the magnetic moment modulus of the second electrode and the fourth electrode, the light control panel is driven to rotate to a corresponding angular position. In the black state, the first electrode and the second electrode have opposite electrical properties and the absolute values ​​of their voltages relative to the reference point are equal, or the first electrode and the second electrode have opposite magnetic properties and the magnetic moment moduli are equal, so as to drive the light control plate to rotate to an angular position perpendicular to the first substrate.

[0009] In some embodiments, the first electrode includes at least two first sub-electrodes, and a first sub-electrode close to the second sub-electrode among the at least two first sub-electrodes is defined as a first black electrode, and the other first sub-electrodes are first gray electrodes; the second electrode includes at least two second sub-electrodes, and a second sub-electrode close to the first sub-electrode among the at least two second sub-electrodes is defined as a second black electrode, and the other second sub-electrodes are second gray electrodes; in a direction perpendicular to the first substrate, the orthographic projection of the second black electrode on the first substrate overlaps with the orthographic projection of the first black electrode on the first substrate, and the orthographic projection of the second gray electrode on the first substrate does not overlap with the orthographic projection of the first gray electrode on the first substrate and is symmetrical about the orthographic projection of the first black electrode on the first substrate; the third electrode is arranged opposite to the fourth electrode; In the bright state, the third electrode and the fourth electrode have opposite electrical properties and the absolute values ​​of their voltages relative to the reference point are equal, or the third electrode and the fourth electrode have opposite magnetic properties and the magnetic moment moduli are equal, so as to drive the light control plate to rotate to an angular position parallel to the first substrate; In the gray state, the first gray state electrode and the corresponding second gray state electrode have opposite electrical properties and equal absolute voltage values ​​relative to a reference point, or opposite magnetic properties and equal magnetic moment moduli, so as to drive the light control panel to rotate to a corresponding angular position; In the black state, the electrical properties of the first black electrode and the second black electrode are opposite and the absolute values ​​of the voltages relative to the reference point are equal, or the magnetic properties of the first black electrode and the second black electrode are opposite and the magnetic moment moduli are equal, so as to drive the light control plate to rotate to an angular position perpendicular to the first substrate.

[0010] In some embodiments, the light control panel includes three coaxially arranged blades, with the angle between adjacent blades being a preset angle; the rotation axes of the blades are located on the central axis of the closed cavity; the three blades are respectively a first blade, a second blade, and a third blade along the preset rotation direction, and each blade has a first surface and a second surface arranged along the preset rotation direction; A first reflective layer is provided on the second surface of the first blade and the first surface of the second blade, a second reflective layer is provided on the second surface of the second blade and the first surface of the third blade, and a light absorbing layer is provided on the second surface of the third blade and the first surface of the first blade; the colors of the first reflective layer and the second reflective layer are different from each other; Two of the three blades have the same charge or the same magnetic moment modulus; the driving electrode includes a fifth electrode and a sixth electrode; the fifth electrode and the sixth electrode are respectively arranged in two opposite pixel walls along the rotation direction of the blades.

[0011] In some embodiments, the display unit also includes a control circuit electrically connected to the fifth electrode and the sixth electrode, for controlling the electrical position or magnetic position of the fifth electrode or the sixth electrode to drive the blades with opposite electrical or magnetic properties to rotate to corresponding angular positions, so that the first reflective layer and the light absorbing layer or the second reflective layer and the light absorbing layer display corresponding brightness according to the corresponding visual ratio.

[0012] In some embodiments, the display unit includes a first light control panel, a second light control panel, and a third light control panel that are independent of each other; the first light control panel, the second light control panel, and the third light control panel are arranged in a direction parallel to the first substrate, and the rotation axes of the three light control panels are located on the same axis; The first light control plate includes a first blade, a second blade and a third blade; The second light control plate includes a fourth blade, a fifth blade, and a sixth blade distributed along a preset rotation direction, each blade having a third surface and a fourth surface arranged along the preset rotation direction; wherein a first reflective layer is provided between the fourth surface of the fourth blade and the third surface of the fifth blade, a third reflective layer is provided between the fourth surface of the fifth blade and the third surface of the sixth blade, and a light absorbing layer is provided between the fourth surface of the sixth blade and the third surface of the fourth blade; The third light control plate includes a seventh blade, an eighth blade, and a ninth blade distributed along a preset rotation direction, each blade having a fifth surface and a sixth surface arranged along the preset rotation direction; wherein the sixth surface of the seventh blade and the fifth surface of the eighth blade are provided with a first reflective layer, the sixth surface of the eighth blade and the first surface of the ninth blade are provided with a fourth reflective layer, and the sixth surface of the ninth blade and the fifth surface of the seventh blade are provided with a light absorbing layer; The first reflective layer is a white reflective layer, and the second reflective layer, the third reflective layer and the fourth reflective layer are colored reflective layers of different colors.

[0013] In some embodiments, the display unit further includes a locking member and a monitoring lock circuit, wherein the locking member is disposed on the rotating shaft of the blade and is electrically connected to the monitoring lock circuit; The display unit further includes a control circuit electrically connected to the drive electrode, the control circuit being configured to output a drive current to drive the blade to rotate to a corresponding angular position, and stop outputting the drive current after the blade rotates to the corresponding angular position; The monitoring lock circuit is used to monitor the driving current of the control circuit; the monitoring lock circuit is also used to: when the driving current is zero, control the locking member to be in a locked state to fix the blade; when the driving current is greater than zero, control the locking member to be in an open state to allow the blade to rotate to the corresponding angle position.

[0014] In some embodiments, the rotation speed of the light control panel is adjusted by adjusting the driving current value on the driving electrode; The closed cavity is filled with a buffer solution; when the driving electrode is in a non-conducting state, the buffer solution is used to maintain the light control panel in a static state.

[0015] In order to solve the above technical problems, the second technical solution provided by this application is to provide a display device. The display device includes: A display panel comprising a plurality of display units arranged in an array, wherein the display units are the display units provided in the above technical solution; The drive control board is electrically connected to the display panel and is used to provide a drive signal to the display panel so that the display panel displays a corresponding image.

[0016] Beneficial effects of the present application: Different from the prior art, the present application provides a display unit and a display device. The display unit includes a first substrate, a second substrate, a pixel wall, a light control panel and a driving electrode; wherein the first substrate and the second substrate are arranged opposite to each other, the pixel wall is arranged between the first substrate and the second substrate, and is surrounded by the first substrate and the second substrate to form a closed cavity. By arranging a rotatable light control panel in the closed cavity, and making the light control panel include at least two blades rotatably connected to the closed cavity, the surface of the blade is provided with a reflective layer or a light-absorbing layer of a preset color, so that after the blade is rotated to a corresponding angle position, the external incident light is reflected to the light-emitting surface to display the corresponding color and brightness, that is, the light control panel reflective display mode is adopted, which eliminates the defects of traditional electrowetting display technology that black spots are prone to appear when displaying white and ink splitting is prone to occur during ink shrinkage, as well as the problem of microcapsules in microcapsule electrophoretic display technology being easily condensed into agglomerates due to electrostatic effects due to being charged, resulting in a long response time. By making two of the at least two blades have opposite electrical or magnetic properties, the blades are driven to rotate through the driving electrodes, and the light control panel is controlled to rotate to the corresponding angular position, thereby controlling the visible area of ​​the light control panel to achieve brightness control. The rotation speed of the blades can be controlled by controlling the driving signal strength of the driving electrodes, thereby achieving dynamic adjustment of the refresh rate to adapt to different refresh rate requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 is a schematic structural diagram of a display unit provided in the first embodiment of the present application; Figure 2a yes Figure 1 A schematic diagram of the structure of the display unit in the embodiment in the bright state; Figure 2b yes Figure 2a Schematic diagram of the planar state of the display unit in the corresponding bright state; Figure 3a yes Figure 1 A schematic diagram of the structure of the display unit in the black state in the embodiment; Figure 3b yes Figure 3a Schematic diagram of the planar state of the display unit in the corresponding black state; Figure 4a yes Figure 1 A schematic diagram of the structure of the display unit in the embodiment in a gray state; Figure 4b yes Figure 4a The schematic diagram of the planar state of the display unit in the corresponding gray state; Figure 5 is a structural diagram of a display unit provided in a second embodiment of the present application; Figure 6 yes Figure 5 A schematic diagram of the structure of the display unit in the embodiment in the bright state; Figure 7 yes Figure 5 A schematic diagram of the structure of the display unit in the black state in the embodiment; Figure 8a yes Figure 5 A schematic diagram of the structure of the display unit in a gray state according to the embodiment; Figure 8b yes Figure 8a The middle part shows a schematic diagram of the planar state of the unit in the corresponding gray state; Figure 9a yes Figure 5 A schematic diagram of the structural state of the display unit in another gray state in the embodiment; Figure 9b yes Figure 9a The schematic diagram of the planar state of the display unit in the corresponding gray state; Figure 10 is a schematic structural diagram of a display unit provided in a third embodiment of the present application; Figure 11 yes Figure 10 A schematic diagram of the structure of the display unit in the embodiment in the bright state; Figure 12 yes Figure 10 A schematic diagram of the structure of the display unit in the black state in the embodiment; Figure 13 yes Figure 10 A schematic diagram of the structure of the display unit in the embodiment in a gray state; Figure 14a yes Figure 10 A schematic diagram of another structural state of the display unit in the embodiment in the bright state; Figure 14b yes Figure 14a Schematic diagram of the planar state of the display unit in the corresponding bright state; Figure 15a yes Figure 10 A schematic diagram of another structural state of the display unit in the embodiment in the bright state; Figure 15b yes Figure 15a Schematic diagram of the planar state of the display unit in the corresponding bright state; Figure 16 is a schematic diagram of the planar structure of a display unit provided in the fourth embodiment of the present application; Figure 17 It is a structural diagram of a display device provided in one embodiment of the present application.

[0019] Reference numerals: 10. Display unit; 11. First substrate; 12. Second substrate; 13. Pixel wall; 14. Light control panel; 140. Blades; 1401. First surface; 1402. Second surface; 141. First blade; 142. Second blade; 143. Third blade; 144. First light control panel; 145. Second light control panel; 146. Third light control panel; 147. Rotating shaft; 148. Bracket; 15. Reflective layer; 151. First reflective layer; 152. Second reflective layer; 153. Third reflective layer ; 154. Fourth reflective layer; 155. Light-absorbing layer; 16. Driving electrode; 161. First electrode; 1611. First black electrode; 1612. First gray electrode; 162. Second electrode; 1621. Second black electrode; 1622. Second gray electrode; 163. Third electrode; 164. Fourth electrode; 165. Fifth electrode; 166. Sixth electrode; 17. Enclosed space; 18. Control circuit; 19. Monitoring lock circuit; 100. Display panel; 200. Driving control board. DETAILED DESCRIPTION

[0020] The following describes the embodiments of the present application in detail with reference to the accompanying drawings.

[0021] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] The terms "first," "second," and "third" in this application 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 identified. Therefore, features identified as "first," "second," or "third" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional designations in the embodiments of this application (such as up, down, left, right, front, back, etc.) are intended only to illustrate the relative positional relationships and movement of components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional designations will also change accordingly. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to such process, method, product, or apparatus.

[0024] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0026] See also Figure 1 , Figure 1 1 is a schematic diagram of the structure of a display unit provided in the first embodiment of the present application. In this embodiment, a display unit 10 is provided, and the display unit 10 includes: a first substrate 11; The second substrate 12 is arranged opposite to the first substrate 11; The pixel wall 13 is disposed between the first substrate 11 and the second substrate 12 and forms a closed cavity with the first substrate 11 and the second substrate 12; The light control panel 14 includes at least two blades 140, which are rotatably connected to the closed cavity. The surfaces of the blades 140 are provided with a reflective layer 15 or a light-absorbing layer 155 of a predetermined color. Two of the at least two blades 140 have opposite electrical properties or opposite magnetic properties. The driving electrodes 16 are provided on at least two of the first substrate 11 , the second substrate 12 and the pixel wall 13 along the rotation direction of the blades 140 , and are used to drive the light control panel 14 to rotate to a corresponding angular position to display corresponding brightness.

[0027] Among them, the first substrate 11 and the second substrate 12 are arranged opposite to each other, serving as a light-emitting substrate and a driving substrate respectively; the driving substrate includes a control circuit 18 electrically connected to the driving electrode 16, which is used to transmit a driving signal to the driving electrode 16; the light-emitting substrate is arranged on the display side, and the external light enters the display unit 10 through the light-emitting substrate, and then is reflected by the light control panel 14 and emitted through the light-emitting substrate, thereby displaying the corresponding brightness.

[0028] The pixel wall 13 is located between the first substrate 11 and the second substrate 12 to form a closed cavity. Specifically, the orthographic projection of the pixel wall 13 on the second substrate 12 is annular, and in a direction perpendicular to the first substrate 11, the ends of the pixel wall 13 abut the first substrate 11 and the second substrate 12, respectively, thereby forming a closed cavity with the first substrate 11 and the second substrate 12. The orthographic projection of the pixel wall 13 on the second substrate 12 can be polygonal, circular, or elliptical. The polygon can be a triangle, rectangle, trapezoid, rhombus, regular hexagon, etc., and can be set according to the required sub-pixel shape.

[0029] The light control panel 14 comprises at least two blades 140, which are rotatably connected to the enclosed cavity via a rotating shaft 147. Specifically, a plane parallel to the rotational direction of the blades 140 is perpendicular to the first substrate 11 and the second substrate 12. The blades 140 are plate-shaped, and a plane parallel to the rotational direction of the blades 140 is perpendicular to the blades 140. This allows the light control panel 14 to reflect light to the light-emitting surface or absorb incoming light. Specifically, a reflective layer 15 of a preset color is provided on the surface of the blades 140. When the blades 140 are rotated to a preset angle position such that the reflective layer 15 faces the first substrate 11, the reflective layer 15 can be used to reflect incoming light to a preset color, causing the display unit 10 to display the preset color. Alternatively, a light-absorbing layer 155 is provided on the surface of the blades 140. When the blades 140 are rotated to a preset angle position such that the light-absorbing layer 155 faces the first substrate 11, the light-absorbing layer 155 can be used to absorb incoming light, causing the display unit 10 to display black or reduce the display brightness of the display unit 10.

[0030] Furthermore, one of the at least two blades 140 may be positively charged and the other negatively charged, thereby enabling rotation of the blades 140 through charge interaction. Alternatively, one of the at least two blades 140 may be magnetically N-polarized and the other S-polarized, thereby enabling rotation of the blades 140 through magnetic force. Rotation of the blades 140 through charge interaction or magnetic force causes the light control panel 14 to rotate to a corresponding angular position, thereby enabling color and brightness display on the display unit 10.

[0031] The drive electrodes 16 are specifically disposed on two of the first substrate 11, the second substrate 12, and the pixel wall 13 along the direction of rotation of the blades 140, such that at least two drive electrodes 16 are arranged along the direction of rotation of the blades 140. This allows the position of the blades 140 to be adjusted by controlling the electrical properties and current magnitude of the drive electrodes 16, causing the blades 140 to rotate to a corresponding angular position to display a corresponding brightness. Specifically, the drive electrodes 16 may be formed of a conductive film layer to apply a current drive signal to the drive electrodes 16, thereby driving the blades 140 to rotate. Alternatively, the drive electrodes 16 may be formed of micro-electromagnets, and the magnetic poles and magnetic moment modulus of the drive electrodes 16 may be controlled by controlling the direction and magnitude of the current, thereby driving the blades 140 to rotate.

[0032] In this embodiment, a rotatable light control plate 14 is disposed within a closed cavity, and the light control plate 14 includes at least two blades 140 rotatably connected to the closed cavity. The surfaces of the blades 140 are provided with a reflective layer 15 or a light absorbing layer 155 of a preset color. Thus, after the blades 140 are rotated to a corresponding angular position, they reflect externally incident light toward the light-emitting surface to display the corresponding color and brightness. That is, the reflective display mode of the light control plate 14 is adopted, eliminating the defects of conventional electrowetting display technology, such as the tendency for black spots to appear when displaying white and the tendency for ink to split during ink shrinkage, as well as the problem of long response time caused by the electrostatic condensation of microcapsules due to the charge in microcapsule electrophoretic display technology. By making two of the at least two blades 140 have opposite electrical properties or opposite magnetic properties, the blades 140 are driven to rotate through the driving electrode 16, and the light control panel 14 is controlled to rotate to a corresponding angular position, thereby controlling the visible area of ​​the light control panel 14 to achieve flexible control of brightness. The rotation speed of the blades 140 can be controlled by controlling the driving signal strength of the driving electrode 16, thereby achieving dynamic adjustment of the refresh rate and adapting to different refresh rate requirements.

[0033] In one embodiment, the light control plate 14 includes two coaxially arranged blades 140, with the two blades 140 forming a 180° angle between them; the rotation axis 147 of the blade 140 is located on the central axis of the closed cavity; the surface of each blade 140 is provided with a white reflective layer 15 (first reflective layer 151); a light absorption layer 155 is provided on the side of the second substrate 12 close to the first substrate 11; the two blades 140 have the same charge or the same magnetic moment modulus; the driving electrode 16 includes a first electrode 161, a second electrode 162, a third electrode 163 and a fourth electrode 164; the first electrode 161 is provided on the side of the first substrate 11 close to the second substrate 12; the second electrode 162 is provided on the side of the light absorption layer 155 close to the first substrate 11; the third electrode 163 and the fourth electrode 164 are respectively provided on two opposite pixel walls 13 along the rotation direction of the blade 140.

[0034] Specifically, the light control panel 14 is composed of two blades 140 symmetrically arranged at 180°. The blades 140 rotate around the central axis, and the rotating shaft 147 is located on the central axis to drive the blades 140 to rotate. The surface of the blades 140 is covered with white reflective material to reflect white light. The white reflective layer 15 is defined as the first emission layer; the second substrate 12 is provided with a light absorption layer 155 on the side facing the closed cavity to absorb light, thereby achieving black display, and cooperating with the first reflective layer 151 to display the corresponding brightness at a preset visual ratio. Furthermore, the two blades 140 have the same charge or the same magnetic moment modulus, so that under the action of the driving signal with the same absolute value, the forces on the two blades 140 are balanced, preventing the light control panel 14 from deflecting and facilitating the design of the driving signal.

[0035] The first electrode 161 is located on the side of the first substrate 11 facing the enclosed cavity, and the second electrode 162 is located on the side of the second substrate 12 facing the enclosed cavity, and is disposed on the side of the light absorbing layer 155 away from the second substrate 12. The third electrode 163 and the fourth electrode 164 are disposed on two opposing pixel walls 13 along the rotational direction of the blade 140. It will be appreciated that the display unit 10 includes a plurality of pixel walls 13, which are connected end to end to form a polygon. The third electrode 163 and the fourth electrode 164 are disposed on two opposing pixel walls 13 located in the rotational direction of the blade 140, respectively. Through the aforementioned arrangement of the driving electrodes 16, the first electrode 161, the second electrode 162, the third electrode 163, and the fourth electrode 164 are all distributed in the rotational direction of the blade 140. This allows the rotation angle of the blade 140 to be controlled by adjusting the electrode energization sequence and voltage. For example, the first electrode 161 and the third electrode 163 work together to drive the blade 140 to rotate to a specific angular position.

[0036] The display unit 10 also includes a control circuit 18, which is electrically connected to the drive electrodes 16 and is configured to provide a drive signal, such as a drive voltage signal or a drive current signal, to the drive electrodes 16. Specifically, an appropriate drive signal can be selected based on the drive mode of the blades 140. The control circuit 18 can be disposed on one or more of the first substrate 11, the second substrate 12, and the pixel wall 13, and can be specifically disposed according to actual circumstances.

[0037] The above-mentioned symmetrical design of the blades 140 and the balance of charge / magnetic moment enable the light control panel 14 to rotate stably under the action of the electric field, avoiding display abnormalities caused by the deflection of the blades 140 due to uneven force. The first reflective layer 151 can improve the utilization rate of ambient light, making the display screen brighter and with a wider viewing angle; the light absorption layer 155 can effectively absorb light in non-target areas to enhance contrast. By arranging the driving electrodes 16 around the light control panel 14 along the rotation direction of the blades 140, multi-electrode coordinated control can be adopted so that the rotation angle of the blades 140 can be precisely adjusted, thereby realizing multi-level grayscale display. In addition, the rotation drive method of the blades 140 avoids the particle condensation problem in traditional electrophoresis technology, thereby improving the response speed and display stability. The layered design of the pixel wall 13 and the electrode can prevent charge interference and ensure independent control of each sub-pixel.

[0038] See also Figure 2a to Figure 4b , Figure 2a yes Figure 1 Schematic diagram of the structure of the display unit in the embodiment in the bright state, Figure 2b yes Figure 2a Schematic diagram of the plane state of the display unit in the corresponding bright state, Figure 3a yes Figure 1 Schematic diagram of the structure of the display unit in the black state in the embodiment, Figure 3b yes Figure 3a Schematic diagram of the planar state of the display unit in the corresponding black state, Figure 4a yes Figure 1 Schematic diagram of the structure of the display unit in the gray state in the embodiment, Figure 4b yes Figure 4a Schematic diagram of the planar state of the display unit in the corresponding gray state.

[0039] In one embodiment, the first electrode 161 and the second electrode 162 are disposed opposite each other; the third electrode 163 and the fourth electrode 164 are disposed opposite each other; In the bright state, the third electrode 163 and the fourth electrode 164 have opposite electrical properties and the absolute values ​​of their voltages relative to the reference point are equal, or the third electrode 163 and the fourth electrode 164 have opposite magnetic properties and the magnetic moment moduli are equal, so as to drive the light control panel 14 to rotate to an angular position parallel to the first substrate 11; In the gray state, the first electrode 161 and the third electrode 163 have the same electrical or magnetic properties, and the second electrode 162 and the fourth electrode 164 have the same electrical or magnetic properties and are opposite to the electrical or magnetic properties of the first electrode 161. By controlling the absolute value of the voltage or the magnetic moment modulus of the first electrode 161 and the third electrode 163, and the absolute value of the voltage or the magnetic moment modulus of the second electrode 162 and the fourth electrode 164, the light control panel 14 is driven to rotate to a corresponding angular position. In the black state, the first electrode 161 and the second electrode 162 have opposite electrical properties and the absolute values ​​of their voltages relative to the reference point are equal, or the first electrode 161 and the second electrode 162 have opposite magnetic properties and the magnetic moment moduli are equal, so as to drive the light control plate 14 to rotate to an angular position perpendicular to the first substrate 11.

[0040] In this embodiment, the first electrode 161 and the second electrode 162 are disposed opposite each other, and the third electrode 163 and the fourth electrode 164 are disposed opposite each other, so as to facilitate driving the light control panel 14 to rotate to a position parallel to the first substrate 11 and a position perpendicular to the first substrate 11. To prevent the driving electrodes 16 from affecting the display effect, the first electrode 161, the second electrode 162, the third electrode 163, and the fourth electrode 164 can be made of a transparent material to form transparent electrodes.

[0041] like Figure 2a and Figure 2b As shown, by adjusting the electrical properties of the third electrode 163 and the fourth electrode 164 to be opposite and the absolute values ​​of the voltages thereof relative to the reference point to be equal, for example, the third electrode 163 is +aV and the fourth electrode 164 is -aV, where a is a constant, the third electrode 163 has an electrostatic attraction to the negatively charged blade 140, and the fourth electrode 164 also has an electrostatic attraction to the positively charged blade 140. As a result, under the action of the electrostatic force, the light control panel 14 rotates to an equilibrium position parallel to the first substrate 11, and the light control panel 14 reflects ambient light and blocks the light absorption layer 155 below, thereby displaying a bright state. Alternatively, by controlling the current, the side of the third electrode 163 facing the enclosed space 17 is the N pole, and the side of the fourth electrode 164 facing the enclosed space 17 is the S pole, so that the third electrode 163 has a magnetic field attraction to the blade 140 with the S magnetic pole, and the fourth electrode 164 also has a magnetic field attraction to the blade 140 with the N magnetic pole. Therefore, under the action of the magnetic field force, the light control panel 14 rotates to a balanced position parallel to the first substrate 11, and the light control panel 14 reflects ambient light and blocks the light absorption layer 155 below, thereby displaying a bright state.

[0042] like Figure 3a and Figure 3bAs shown, by adjusting the electrical properties of the first electrode 161 and the second electrode 162 to be opposite and the absolute values ​​of the voltages thereof relative to a reference point to be equal, for example, the first electrode 161 is +aV and the second electrode 162 is -aV, where a is a constant, the first electrode 161 has an electrostatic attraction to the negatively charged blade 140, and the second electrode 162 also has an electrostatic attraction to the positively charged blade 140. As a result, under the action of the electrostatic force, the light control plate 14 rotates to an equilibrium position perpendicular to the first substrate 11. In the direction perpendicular to the first substrate 11, the light control plate 14 does not block the light absorption layer 155. The light absorption layer 155 below absorbs ambient light, so that the display unit 10 appears in a completely black state. Alternatively, by controlling the direction of the current, the side of the first electrode 161 facing the enclosed space 17 is the north pole, and the side of the second electrode 162 facing the enclosed space 17 is the south pole. This causes the first electrode 161 to exert a magnetic attraction on the vanes 140 at the south pole, and the second electrode 162 to exert a magnetic attraction on the vanes 140 at the north pole. Consequently, under the action of the magnetic field, the light control plate 14 rotates to an equilibrium position perpendicular to the first substrate 11, exposing the light absorption layer 155. The light absorption layer 155 absorbs ambient light, causing the display unit 10 to appear completely black. It is understood that although the light control plate 14 will partially block the light absorption layer 155, the slender shape of the light control plate 14 makes the blocking effect minimal and negligible to the naked eye.

[0043] like Figure 4a and Figure 4bAs shown, by maintaining electrical or magnetic consistency between the first electrode 161 and the third electrode 163, and maintaining electrical or magnetic consistency between the second electrode 162 and the fourth electrode 164, and by adjusting the voltage or magnetic moment of each driving electrode 16 to control the rotation angle of the light control panel 14, the light control panel 14 blocks a portion of the light absorbing layer 155, allowing the light control panel 14 and the light absorbing layer 155 to jointly participate in the display and display a corresponding brightness according to a corresponding visible ratio. It can be understood that because the light control panel 14 rotates at a certain angle and tilts relative to the first substrate 11, the area of ​​the orthographic projection of the light control panel 14 on the first substrate 11 is smaller than the display area of ​​the display unit 10. The light control panel 14 only blocks a portion of the light absorbing layer 155. The ratio of the area of ​​the orthographic projection of the light control panel 14 on the first substrate 11 to the orthographic projection of the unblocked portion of the light absorbing layer 155 on the first substrate 11 is the aforementioned visible ratio. In other words, by controlling the visible ratio, the proportion of ambient light reflected by the display unit 10 can be controlled, thereby achieving grayscale display. Specifically, the voltages of the first electrode 161 and the third electrode 163 can be controlled so that the direction of the resultant force exerted by the first electrode 161 and the third electrode 163 on the corresponding blade 140 matches the angular position of the light control panel 14 corresponding to the grayscale level. This allows the light control panel 14 to be parallel to the direction of the resultant force after rotating to a preset angular position. To ensure force balance on the light control panel 14, the voltages of the second electrode 162 and the fourth electrode 164 can be symmetrically arranged with respect to the first electrode 161 and the third electrode 163 about the rotation axis 147.

[0044] In this embodiment, by synchronously controlling the electrode layout and electrical / magnetic properties, the light control panel 14 can be accurately rotated to a preset angle, thereby achieving stable display of bright, gray, and black states. The adjustment of the electrode voltage or magnetic moment can continuously control the rotation angle of the light control panel 14, so that the grayscale display has multi-level adjustment capabilities, solving the problem that traditional electronic paper cannot display grayscale. In addition, the driving method of electrically or magnetically driving the light control panel 14 to rotate avoids the response delay caused by the condensation of charged particles in traditional electrophoresis technology, which can improve the display refresh rate. The reflective characteristics of the light control panel 14 can effectively shield the black ink in the black state, reduce black spot defects in the bright state, and expand the display viewing angle. Specifically, ordinary black ink can be used to make the light absorption layer 155 instead of charged ink to reduce material costs, and the electrode driving method avoids the problem of ink splitting and improves display uniformity.

[0045] See also Figure 5 to Figure 9b , Figure 5 is a structural diagram of a display unit provided in the second embodiment of the present application, Figure 6 yes Figure 5 Schematic diagram of the structure of the display unit in the embodiment in the bright state, Figure 7 yes Figure 5 Schematic diagram of the structure of the display unit in the black state in the embodiment, Figure 8a yes Figure 5 A schematic diagram of the structure of the display unit in a gray state in the embodiment, Figure 8b yes Figure 8a The schematic diagram of the plane state of the display unit in the corresponding gray state, Figure 9a yes Figure 5 A schematic diagram of the structural state of the display unit in another gray state in the embodiment, Figure 9b yes Figure 9a Schematic diagram of the planar state of the display unit in the corresponding gray state.

[0046] In one embodiment, the first electrode 161 includes at least two first sub-electrodes, and a first sub-electrode closer to the second sub-electrode among the at least two first sub-electrodes is defined as a first black electrode 1611, and the other first sub-electrodes are defined as first gray electrodes 1612; the second electrode 162 includes at least two second sub-electrodes, and a second sub-electrode closer to the first sub-electrode among the at least two second sub-electrodes is defined as a second black electrode 1621, and the other second sub-electrodes are defined as second gray electrodes 1622; in a direction perpendicular to the first substrate 11, the orthographic projection of the second black electrode 1621 on the first substrate 11 overlaps with the orthographic projection of the first black electrode 1611 on the first substrate 11, and the orthographic projection of the second gray electrode 1622 on the first substrate 11 does not overlap with the orthographic projection of the first gray electrode 1612 on the first substrate 11 and is symmetrical about the orthographic projection of the first black electrode 1611 on the first substrate 11; the third electrode 163 is arranged opposite the fourth electrode 164; In the bright state, the third electrode 163 and the fourth electrode 164 have opposite electrical properties and the absolute values ​​of their voltages relative to the reference point are equal, or the third electrode 163 and the fourth electrode 164 have opposite magnetic properties and the magnetic moment moduli are equal, so as to drive the light control panel 14 to rotate to an angular position parallel to the first substrate 11; In the gray state, the first gray electrode 1612 and the corresponding second gray electrode 1622 have opposite electrical properties and equal absolute voltage values ​​relative to a reference point, or opposite magnetic properties and equal magnetic moment moduli, so as to drive the light control panel 14 to rotate to a corresponding angular position. In the black state, the electrical properties of the first black electrode 1611 and the second black electrode 1621 are opposite and the absolute values ​​of the voltages relative to the reference point are equal, or the magnetic properties of the first black electrode 1611 and the second black electrode 1621 are opposite and the magnetic moment moduli are equal, so as to drive the light control plate 14 to rotate to an angular position perpendicular to the first substrate 11.

[0047] Specifically, if Figure 5As shown, each of the first electrode 161 and the second electrode 162 includes multiple sub-electrodes. With an axis passing through the rotation axis 147 and perpendicular to the first substrate 11 as a reference axis, the first electrode 161 is located on one side of the first axis, while the second electrode 162 is located on the other side of the reference axis. The first and second electrodes 161, 162 are centrally symmetrically distributed about the rotation axis 147. The first sub-electrode closest to the second electrode 162 in the first electrode 161 is defined as a first black electrode 1611, and the second sub-electrode closest to the first electrode 161 in the second electrode 162 is defined as a second black electrode 1621. The remaining sub-electrodes in the first electrode 161 are defined as first gray electrodes 1612, and the remaining sub-electrodes in the second electrode 162 are defined as second gray electrodes 1622. The first black electrode 1611 and the second black electrode 1621 are both located on the reference axis, facing each other. The first gray electrodes 1612 and the second gray electrodes 1622 are centrally symmetrically distributed about the rotation axis 147.

[0048] like Figure 6 and Figure 2b As shown, similar to the bright state of the previous embodiment, by adjusting the electrical properties of the third electrode 163 and the fourth electrode 164 to be opposite and the absolute values ​​of the voltages thereof relative to the reference point to be equal, or by controlling the magnetism of the side of the third electrode 163 facing the enclosed space 17 to be opposite and the magnetism of the side of the fourth electrode 164 facing the enclosed space 17 to be equal through current, the third electrode 163 and the fourth electrode 164 respectively exert an electrostatic force or a magnetic field force on the blade 140 of corresponding electrical or magnetic properties. Therefore, under the action of the electrostatic force or the magnetic force, the light control panel 14 rotates to an equilibrium position parallel to the first substrate 11, and the light control panel 14 reflects ambient light and completely blocks the light absorption layer 155 below, thereby displaying a bright state.

[0049] like Figure 7 and Figure 3b As shown, similar to the black state of the previous embodiment, by adjusting the electrical properties of the first black state electrode 1611 and the second black state electrode 1621 to be opposite and the absolute values ​​of the voltages thereof relative to the reference point to be equal, or by controlling the magnetic pole of the first black state electrode 1611 facing the enclosed space 17 and the magnetic pole of the second black state electrode 1621 facing the enclosed space 17 to be opposite and the magnetic moment modules to be equal, the first black state electrode 1611 and the second black state electrode 1621 respectively exert an electrostatic force or a magnetic force on the blades 140 of corresponding electrical or magnetic properties, thereby causing the light control panel 14 to rotate to an equilibrium position perpendicular to the first substrate 11 under the action of the electrostatic force or the magnetic force. In the direction perpendicular to the first substrate 11, the light control panel 14 does not block the light absorption layer 155, and the light absorption layer 155 below absorbs ambient light, so that the display unit 10 appears in a completely black state.

[0050] like Figure 8a to Figure 9bAs shown, by controlling the electrical properties of the first gray state electrode 1612 at the corresponding position and the second gray state electrode 1622 symmetrical to the first gray state electrode 1612 to be opposite and the absolute values ​​of the voltages to be equal, or controlling the magnetic properties of the first gray state electrode 1612 at the corresponding position and the second gray state electrode 1622 symmetrical to the first gray state electrode 1612 to be opposite and the magnetic moment moduli to be equal, the first gray state electrode 1612 and the second gray state electrode 1622 at the corresponding position respectively exert an electrostatic force or a magnetic force on the blade 140 of the corresponding electrical or magnetic property, so that under the action of the electrostatic force or the magnetic force, the light control panel 14 is rotated to the corresponding angular position, so that the light control panel 14 and the unblocked part of the light absorption layer 155 participate in the display together to display the corresponding grayscale brightness according to the corresponding visual ratio. That is, by controlling the driving signals of the first gray state electrodes 1612 and the corresponding second gray state electrodes 1622 at different positions, the light control panel 14 is controlled to rotate to the angular position corresponding to the gray scale, so that the visible ratio of the light control panel 14 and the unblocked portion of the light absorption layer 155 corresponds to the gray scale brightness to be displayed, thereby controlling the display unit 10 to display different gray scale brightness.

[0051] In this embodiment, the multi-sub-electrode design and symmetrical distribution of the first electrode 161 and the second electrode 162 enable precise control of the rotation angle of the light control panel 14, achieving a multi-level display effect of bright, gray, and black states. The overlapping arrangement of the black state electrodes enhances the electric field force, ensuring that the light control panel 14 maintains a vertical angular position, and avoiding the problem of the light control panel 14 tilting and not being in a completely black state. At the same time, the symmetrical layout of the gray state electrodes forms a multi-angle drive through different electrode combinations to meet the requirements of grayscale adjustment. Moreover, the design of multiple gray state electrodes enables grayscale display by simply controlling one of the first gray state electrodes 1612 and the corresponding second gray state electrode 1622. Compared with the electrode control method for grayscale display in the previous embodiment, the electrode control method in this embodiment is simpler and easier to implement.

[0052] In one embodiment, the surface of each blade 140 in the display unit 10 may also be provided with a reflective layer 15 of other colors, such as red, green, and blue, so that other colors can be displayed in the bright state. When applied to a display panel 100, the display panel 100 may include display units 10 of different colors. The display units 10 of different colors may be arranged according to a predetermined pattern to form a pixel array, thereby achieving full-color display. For example, the display panel 100 may include multiple pixel units arranged in an array, each pixel unit including a red display unit 10, a green display unit 10, a blue display unit 10, and a white display unit 10, thereby achieving full-color display.

[0053] In one embodiment, in the display unit 10 , a light absorbing layer 155 is disposed on the surface of each blade 140 , and a reflective layer 15 of a preset color is disposed on a side of the second substrate 12 close to the first substrate 11 .

[0054] In the bright state, the first electrode 161 and the second electrode 162 have opposite electrical properties and the absolute values ​​of the voltages relative to the reference point are equal, or the first electrode 161 and the second electrode 162 have opposite magnetic properties and the magnetic moment moduli are equal, so as to drive the light control plate 14 to rotate to an angular position perpendicular to the first substrate 11, thereby causing the reflective layer 15 to reflect light to the light-emitting surface to display the corresponding color.

[0055] In the gray state, the first electrode 161 and the third electrode 163 are controlled to have the same electrical properties and the same or different voltages, thereby controlling the direction and magnitude of the force exerted by the first and third electrodes 161, 163 on the blade 140. Simultaneously, the second and fourth electrodes 162, 164 are controlled to have the same electrical properties and opposite electrical properties to the first electrode 161, with the voltages of the second and fourth electrodes 162, 164 being symmetrically arranged with the voltages of the first and third electrodes 161, 163 about the axis of rotation 147. This causes the light control panel 14 to rotate to an angular position corresponding to the grayscale while maintaining force balance, so that the visible ratio of the reflective layer 15 to the light absorbing layer 155 corresponds to the grayscale, thereby displaying the corresponding grayscale brightness. Alternatively, the corresponding first grayscale electrode 1612 and the corresponding second grayscale electrode 1622 are controlled to have opposite electrical properties and the same voltages, thereby driving the light control panel 14 to rotate to an angular position corresponding to the grayscale while maintaining force balance, thereby displaying the corresponding grayscale brightness.

[0056] In the black state, the third electrode 163 and the fourth electrode 164 have opposite electrical properties and the absolute values ​​of their voltages relative to the reference point are equal, or the third electrode 163 and the fourth electrode 164 have opposite magnetic properties and the magnetic moment moduli are equal, thereby driving the light control plate 14 to rotate to an angular position parallel to the first substrate 11. The light control plate 14 completely blocks the reflective layer 15 below, and the light absorption layer 155 on the surface of the light control plate 14 absorbs the incident ambient light, thereby displaying a completely black state.

[0057] See also Figure 10 , Figure 10 Schematic diagram of the structure of a display unit provided in the third embodiment of the present application. In this embodiment, the light control panel 14 includes three coaxially arranged blades 140, with the angle between adjacent blades 140 being a predetermined angle. The rotation axis 147 of the blades 140 is located on the central axis of the enclosed cavity. The three blades 140 are respectively a first blade 141, a second blade 142, and a third blade 143 along the predetermined rotation direction. Each blade 140 has a first surface 1401 and a second surface 1402 arranged along the predetermined rotation direction. A first reflective layer 151 is disposed on the second surface 1402 of the first blade 141 and the first surface 1401 of the second blade 142; a second reflective layer 152 is disposed on the second surface 1402 of the second blade 142 and the first surface 1401 of the third blade 143; and a light absorbing layer 155 is disposed on the second surface 1402 of the third blade 143 and the first surface 1401 of the first blade 141. The colors of the first reflective layer 151 and the second reflective layer 152 are different from each other. Two of the three blades 140 have the same charge or the same magnetic moment modulus. The driving electrode 16 includes a fifth electrode 165 and a sixth electrode 166 . The fifth electrode 165 and the sixth electrode 166 are respectively arranged in two opposite pixel walls 13 along the rotation direction of the blade 140 .

[0058] Specifically, the light control panel 14 includes three blades 140 symmetrically distributed along the central axis, and the blades 140 are arranged at specific angles. Each blade 140 has two surfaces with different functions, and light control is achieved through the combination of a reflective layer 15 and a light-absorbing layer 155. The first reflective layer 151 and the second reflective layer 152 are made of different color materials to distinguish the optical state. Specifically, the first reflective layer 151 can be a white reflective layer 15, and the second reflective layer 152 can be a colored reflective layer 15, such as red, green or blue. The blades 140 achieve synchronous movement through the equality of charge or magnetic moment, and the driving electrodes 16 are arranged at relative positions on the pixel wall 13 to control the rotation direction of the blades 140. Specifically, different materials can be used to make the reflective layer 15, such as a microprism coating or an organic resin film, and the light-absorbing layer 155 can be made of low-cost materials such as polyurethane. The angle of the blade 140 can be set to 120 degrees or other angles that meet optical requirements. The driving electrode 16 realizes the directional rotation of the blade 140 by changing the polarity of the current, thereby combining the white reflective layer 15, the color reflective layer 15 and the light absorbing layer 155 to realize black, white, gray and color display.

[0059] In this embodiment, the symmetrical distribution of the blades 140 and the differentiated design of the optical layer can achieve stable display and fast switching of images while reducing power consumption. The provision of different color reflective layers 15 expands the color performance range, and the light-absorbing layer 155 effectively eliminates the problem of bright black spots. The matching of the charge or magnetic moment modulus between the blades 140 ensures the synchronous movement of the two ends of the light control plate 14, which can improve the response speed. The directional layout of the drive electrode 16 makes the rotation of the blade 140 more precise. This structure replaces the traditional particle movement with the principle of optical reflection, avoids display unevenness and response delay, simplifies the structural complexity of the color display, and provides a technical basis for high-resolution and wide-viewing angle display.

[0060] In one embodiment, the display unit 10 further includes a control circuit 18 electrically connected to the fifth electrode 165 and the sixth electrode 166, for controlling the electrical position or magnetic position of the fifth electrode 165 or the sixth electrode 166 to drive the blades 140 of opposite electrical or magnetic properties to rotate to corresponding angular positions, so that the first reflective layer 151 and the light absorbing layer 155 or the second reflective layer 152 and the light absorbing layer 155 display corresponding brightness according to corresponding visual proportions.

[0061] Specifically, the control circuit 18 is connected to the fifth electrode 165 and the sixth electrode 166, and the rotation of the blade 140 is achieved by adjusting the electrical position or magnetic position of the electrodes. The blade 140 includes a first reflective layer 151, a second reflective layer 152, and a light absorbing layer 155. By adjusting the angle of the blade 140, the visual ratio of the different reflective layers 15 and the light absorbing layer 155 can be changed. The top of the blade 140 can be made of magnetic material, and rapid positioning can be achieved through the positive and negative polarity attraction of the electrode wall. The fifth electrode 165 and the sixth electrode 166 can be designed as variable polarity electrodes, and the magnetic position is controlled by the direction of the current. When the blade 140 rotates, the coverage area ratio of the first reflective layer 151 or the second reflective layer 152 and the light absorbing layer 155 changes, thereby adjusting the intensity of light reflection.

[0062] The following embodiment takes the second blade 142 and the third blade 143 having opposite electrical or magnetic properties, the first reflective layer 151 being a white reflective layer 15 , and the second reflective layer 152 being a color reflective layer 15 as an example to illustrate the driving and displaying principle of the display unit 10 .

[0063] See also Figure 11 and Figure 2b , Figure 11 yes Figure 10 Schematic diagram of the structure of the display unit in the embodiment in the bright state. In the bright state, the electrical / magnetic position of the sixth electrode 166 is located near the first substrate 11 of the pixel wall 13 and has different electrical / magnetic properties from the second blade 142. Therefore, the electrical / magnetic electrode position drives the blade 140 to rotate, so that the second surface 1402 of the first blade 141 and the first surface 1401 of the second blade 142 face the first substrate 11. That is, the first reflective layer 151 faces the first substrate 11, the second reflective layer 152 and the light absorbing layer 155 are blocked and do not participate in the display. The first reflective layer 151 reflects the incident ambient light to the display surface, thereby displaying the bright state.

[0064] See also Figure 12 and Figure 3b , Figure 12 yes Figure 10Schematic diagram of the structure of the display unit in the black state according to the embodiment. In the black state, the electrical / magnetic position of the fifth electrode 165 is located near the first substrate 11 of the pixel wall 13 and has different electrical / magnetic properties from the third blade 143. This electrical / magnetic position of the electrode drives the blade 140 to rotate, causing the second surface 1402 of the third blade 143 and the first surface 1401 of the first blade 141 to face the first substrate 11. That is, the light absorbing layer 155 faces the first substrate 11, and the first reflective layer 151 and the second reflective layer 152 are blocked and do not participate in the display. The light absorbing layer 155 absorbs the incident ambient light, thereby displaying a completely black state. Alternatively, the electrical / magnetic position of the fifth electrode 165 is located at a position on the pixel wall 13 close to the second substrate 12 and is different from the electrical / magnetic position of the second blade 142, thereby driving the blade 140 to rotate to the bright position, so that the second surface 1402 of the third blade 143 and the first surface 1401 of the first blade 141 face the first substrate 11, that is, the light absorption layer 155 faces the first substrate 11, thereby displaying a black state.

[0065] See also Figure 13 、 Figure 8b and Figure 9b , Figure 13 yes Figure 10 Schematic diagram of the structure of the display unit in the gray state according to an embodiment. In the gray state, the electrical / magnetic position of the fifth electrode 165 is controlled to be located in the region between the end of the pixel wall 13 near the first substrate 11 and the end near the second substrate 12, and its electrical / magnetic properties are different from those of the first blade 141, and / or the electrical / magnetic position of the sixth electrode 166 is controlled to be located in the region between the end of the pixel wall 13 near the first substrate 11 and the end near the second substrate 12, and its electrical / magnetic properties are different from those of the third blade 143. By controlling the electrical / magnetic properties of the fifth electrode 165 and / or the electrical / magnetic properties of the sixth electrode 166 in the specific position of the pixel wall 13, the first blade 141 rotates within the portion of the enclosed space 17 near the first substrate 11, thereby controlling the ratio of the areas of the first reflective layer 151 and the light absorbing layer 155 involved in the display to correspond to the desired grayscale brightness, thereby displaying the corresponding grayscale brightness. That is, by changing the electrical / magnetic position of the fifth electrode 165 and / or the electrical / magnetic position of the sixth electrode 166 , the visible ratio of the first reflective layer 151 and the light absorption layer 155 is changed, thereby achieving graded grayscale brightness display of the display unit 10 .

[0066] Further, see Figure 14a and Figure 14b , Figure 14a yes Figure 10 A schematic diagram of another structural state of the display unit in the embodiment in the bright state, Figure 14b yes Figure 14aSchematic diagram of a planar state of the display unit in the corresponding bright state. In the color bright state, the electrical / magnetic position of the fifth electrode 165 is controlled to be located at a position on the pixel wall 13 close to the first substrate 11, and to have a different electrical / magnetic property from that of the second blade 142, and / or the electrical / magnetic position of the sixth electrode 166 is controlled to be located at a position on the pixel wall 13 close to the first substrate 11, and to have a different electrical / magnetic property from that of the third blade 143, so as to drive the light control plate 14 to rotate so that the second reflective layer 152 between the second blade 142 and the third blade 143 faces the first substrate 11, thereby displaying the color bright state. For example, if the second reflective layer 152 is red, the display unit 10 displays red in this state; if the second reflective layer 152 is green, the display unit 10 displays green in this state; if the second reflective layer 152 is blue, the display unit 10 displays blue in this state.

[0067] See also Figure 15a and Figure 15b , Figure 15a yes Figure 10 A schematic diagram of another structural state of the display unit in the embodiment in the bright state, Figure 15b yes Figure 15a Schematic diagram of the planar state of the display unit in the corresponding bright state. Furthermore, in the color bright state, the visible ratio of the second reflective layer 152 and the light absorbing layer 155 can be adjusted by adjusting the electrical / magnetic position of the driving electrode 16, thereby adjusting the color brightness of the display. Specifically, the electrical / magnetic position of the fifth electrode 165 is controlled to be located in the area between the end of the pixel wall 13 close to the first substrate 11 and the end close to the second substrate 12, and its electrical / magnetic properties are different from those of the second blade 142, so as to drive the second blade 142 to rotate to a position close to the fifth electrode 165 with electrical / magnetic properties, thereby controlling the area ratio of the second reflective layer 152 and the light absorbing layer 155 participating in the display to correspond to the color brightness to be displayed, so as to display the corresponding color and brightness.

[0068] In this embodiment, the position of the electrode polarity is precisely adjusted by the control circuit 18, so that the blade 140 is quickly positioned at a specific angle, thereby achieving dynamic adjustment of the display brightness. By adjusting the visible ratio of different reflective layers 15 and light-absorbing layers 155, grayscale display can be achieved, solving the problem that traditional electronic paper cannot display different grayscale levels. By adjusting the coverage area of ​​the reflective layer 15, the display effect is made more uniform and unaffected by the viewing angle, thereby expanding the viewing angle. In addition, the structural design of the display unit 10 simplifies the manufacturing process of color electronic paper, avoids the use of complex filters, and reduces production costs. At the same time, the rapid response characteristics of the blade 140 can significantly improve the display refresh rate while maintaining the advantage of low energy consumption.

[0069] See also Figure 16 , Figure 16FIG2 is a schematic diagram of the planar structure of a display unit provided in a fourth embodiment of the present application. In this embodiment, the display unit 10 includes a first light control panel 144, a second light control panel 145, and a third light control panel 146, which are independent of each other. The first light control panel 144, the second light control panel 145, and the third light control panel 146 are arranged parallel to the first substrate 11, and their rotation axes 147 are located on the same axis. The first light control plate 144 includes a first blade 141 , a second blade 142 and a third blade 143 ; The second light control plate 145 includes a fourth blade, a fifth blade, and a sixth blade (not shown) distributed along a preset rotation direction. Each blade 140 has a third surface and a fourth surface (not shown) arranged along the preset rotation direction. A first reflective layer 151 is provided between the fourth surface of the fourth blade and the third surface of the fifth blade, a third reflective layer 153 is provided between the fourth surface of the fifth blade and the third surface of the sixth blade, and a light absorbing layer 155 is provided between the fourth surface of the sixth blade and the third surface of the fourth blade. The third light control plate 146 includes a seventh blade, an eighth blade, and a ninth blade (not shown) distributed along a predetermined rotational direction. Each blade has a fifth surface and a sixth surface (not shown) disposed along the predetermined rotational direction. A first reflective layer 151 is disposed between the sixth surface of the seventh blade and the fifth surface of the eighth blade, a fourth reflective layer 154 is disposed between the sixth surface of the eighth blade and the fifth surface of the ninth blade, and a light absorbing layer 155 is disposed between the sixth surface of the ninth blade and the fifth surface of the seventh blade. The first reflective layer 151 is a white reflective layer 15 , and the second reflective layer 152 , the third reflective layer 153 and the fourth reflective layer 154 are color reflective layers 15 of different colors.

[0070] Specifically, the display unit 10 is provided with three independent light control panels 14, namely a first light control panel 144, a second light control panel 145 and a third light control panel 146. The three light control panels 14 are arranged in sequence along a direction parallel to the substrates (the first substrate 11 and the second substrate 12) and the rotation axes 147 are collinear.

[0071] The structure and function of the first light control panel 144 are similar to those of the Figure 10The light control plate 14 provided in this embodiment has the same structure and function, and can achieve the same technical effects. For details, please refer to the relevant description above. Similar to the first light control plate 144, the second light control plate 145 includes three blades 140 distributed along the rotation direction. The blades 140 have opposing third and fourth surfaces. The third and fourth surfaces are arranged along a predetermined rotation direction, which can be clockwise in the figure (or counterclockwise in other embodiments). A first reflective layer 151 is provided on the surface between the fourth and fifth blades, a third reflective layer 153 is provided on the surface between the fifth and sixth blades, and a light absorbing layer 155 is provided on the surface between the sixth and fourth blades. The third light control plate 146 also includes three blades 140 distributed along the rotation direction. The blades 140 have opposing fifth and sixth surfaces arranged along the predetermined rotation direction. A first reflective layer 151 is provided on the surface between the seventh and eighth blades, a fourth reflective layer 154 is provided on the surface between the eighth and ninth blades, and a light absorbing layer 155 is provided on the surface between the ninth and seventh blades.

[0072] The first reflective layer 151 is made of a white reflective material, the other reflective layers 15 are made of reflective materials of different colors, and the light-absorbing layer 155 can be made of a black resin or a carbon-based material. Specifically, the second reflective layer 152, the third reflective layer 153, and the fourth reflective layer 154 can be a red reflective layer 15, a green reflective layer 15, and a blue reflective layer 15, respectively, so that the display unit 10 can constitute a pixel unit.

[0073] The blades 140 of each light control panel 14 rotate synchronously via a rotating shaft 147, switching the light reflection path through the combination of different reflective layers 15. The three light control panels 14 are independent of each other, namely the first light control panel 144, the second light control panel 145, and the third light control panel 146, each independently controlled to rotate and independently display color and brightness. The specific driving and display methods are the same or similar to those in the above embodiments and can be referred to above. Detailed description is omitted here.

[0074] In this embodiment, multi-layer light control is achieved by combining the blades 140 of three independent light control panels 14. The white reflective layer 15 enhances display brightness, the colored reflective layer 15 provides color selection, and the light-absorbing layer 155 reduces light interference and can reduce display brightness, achieving grayscale adjustment. The colinear design of the rotating shafts 147 of the blades 140 ensures synchronous rotation and improves response speed. The alternating arrangement of the reflective layer 15 and the light-absorbing layer 155 can precisely control the light reflection ratio and achieve grayscale adjustment. The combination of the colored reflective layer 15 and the white reflective layer 15 supports color display, avoiding the traditional filter process. The arrangement and combination of different color reflective layers 15 expands the viewing angle and enhances the display effect. Furthermore, by providing three independent light control panels 14, each light control panel 14 can display a different color. When applied to the display panel 100, it can not only achieve full-color display and improve the color gamut, but also significantly improve the resolution of the display panel 100.

[0075] Similar to this embodiment, in other embodiments, the display unit 10 may also include two independent light control panels 14, or may also include four independent light control panels 14. The number of light control panels 14 in the display unit 10 can be set according to the resolution requirements of the display panel 100 and is not specifically limited thereto.

[0076] Please continue reading Figure 10 In one embodiment, the display unit 10 further includes a locking member (not shown) and a monitoring lock circuit 19. The locking member is arranged on the rotating shaft 147 of the blade 140 and is electrically connected to the monitoring lock circuit 19. The display unit 10 further includes a control circuit 18 electrically connected to the driving electrode 16. The control circuit 18 is used to output a driving current to drive the blade 140 to rotate to a corresponding angular position, and stop outputting the driving current after the blade 140 rotates to the corresponding angular position. The monitoring lock circuit 19 is used to monitor the driving current of the control circuit 18. The monitoring lock circuit 19 is also used to: when the driving current is zero, control the locking member to be in a locked state to fix the blade 140; when the driving current is greater than zero, control the locking member to be in an open state to allow the blade 140 to rotate to the corresponding angular position.

[0077] The locking member is connected to the rotating shaft 147 of the blade 140 and is controlled by the monitoring lock circuit 19. The monitoring lock circuit 19 controls the operation of the locking member by detecting the driving current state output by the control circuit 18. When the driving current is zero, the locking member locks the position of the blade 140. When the driving current is present, the locking member releases the blade 140.

[0078] In a specific embodiment, a magnetic locking structure can be used, whereby a magnet and an electromagnet cooperate to achieve locking, or a mechanical snap-fit ​​structure can be used in conjunction with an electromagnetic drive device. For example, a gear snap-fit ​​structure can be used. When the drive current is zero, the locking rod engages with the corresponding groove of the gear, locking the shaft 147 and thereby locking the position of the blades 140. When the drive current is not zero, the locking rod disengages from the gear groove, allowing the shaft 147 to drive the blades to rotate.

[0079] The monitoring lock circuit 19 can be composed of a current detection module and a logic control unit, triggering the locking member's action by real-time monitoring of changes in the drive current. The locking member is locked by physical snapping or magnetic attraction, while the unlocked state is achieved by electromagnetic repulsion or mechanical unlocking. The connection between the blade 140's shaft 147 and the locking member can be direct fixed or connected via a transmission mechanism.

[0080] In this embodiment, through the linkage control of the locking member and the monitoring lock circuit 19, the driving current can be cut off immediately and the position of the blade 140 can be locked after the blade 140 reaches the target angle. This design eliminates the need for continuous power supply for the display unit 10 when maintaining the screen state, thereby achieving zero power consumption to maintain the display effect. The real-time monitoring of the driving current by the monitoring lock circuit 19 ensures that the locking action is precisely synchronized with the movement state of the blade 140, avoiding locking failure due to current fluctuations. The mechanical locking structure of the locking member can effectively prevent the blade 140 from shifting in the power-off state, thereby improving display stability. This control method directly responds to the current state through the hardware circuit, significantly reducing energy consumption compared to the continuous power supply mode of traditional electronic paper. At the same time, the simple design of the mechanical locking structure reduces manufacturing costs. In color electronic paper applications, this technical feature ensures that the RGB sub-pixel fan blades can be accurately fixed in position after switching, avoiding color aliasing problems caused by the shaking of the blade 140.

[0081] In one embodiment, the rotation speed of the light control panel 14 is adjusted by adjusting the driving current value on the driving electrode 16; the closed cavity is filled with a buffer; when the driving electrode 16 is in a non-conducting state, the buffer is used to maintain the light control panel 14 in a static state.

[0082] Among them, the rotation speed of the light control panel 14 can be controlled by adjusting the current value on the driving electrode 16. The driving electrode 16 is made of conductive material, and the current size is positively correlated with the rotation speed. The closed cavity is filled with a buffer solution with viscosity and fluidity. The liquid can be silicone oil or a liquid with similar characteristics. Its function is to provide a damping force to keep the light control panel 14 stationary when the driving electrode 16 is powered off. When the driving electrode 16 is not powered, the buffer solution offsets the inertial motion of the light control panel 14 through viscous resistance, so that the light control panel 14 remains in its current stable position. Buffer solutions of different viscosities can be used to match different rotation speed requirements. For example, high-viscosity liquids are suitable for scenarios that require slow rotation, and low-viscosity liquids are suitable for scenarios that require high-speed rotation. Specifically, the buffer solution also has the properties of high resistivity, low electrolyte content, and non-polarity to reduce the influence of the buffer solution on the charge distribution on the blade 140, and to avoid the redistribution of charge through the buffer solution, resulting in the inability to maintain charge separation on the blade 140.

[0083] In this embodiment, the rotational speed of the light control panel 14 can be precisely controlled by adjusting the drive current, enabling the display unit 10 to have an adjustable refresh rate. The damping effect of the buffer ensures that the light control panel 14 remains stably in its target position when the power is off. This design enables the display unit 10 to maintain its image with zero power consumption even when not in operation. The viscous buffer also acts as a shock absorber, reducing wear on mechanical components and extending the life of the device. The synergistic effect of liquid damping and current drive ensures both dynamic adjustment capability and static stability. This dual safeguard significantly improves the reliability and energy efficiency of the display device.

[0084] In one embodiment, the display unit 10 may further include a bracket 148, one end of which is fixed to the second substrate 12 and the other end is connected to a rotating shaft 147. The rotating shaft 147 is rotatable relative to the bracket 148. The monitoring lock circuit 19 is disposed on the second substrate 12, and the locking member is electrically connected to the monitoring lock circuit 19 through the bracket 148. It can be understood that a conductive circuit is disposed within the bracket 148, and the locking member is electrically connected to the monitoring lock circuit 19 through the conductive circuit within the bracket 148.

[0085] See also Figure 17 , Figure 17 : is a schematic diagram of the structure of a display device provided in an embodiment of the present application. In this embodiment, a display device is provided, which includes: The display panel 100 includes a plurality of display units 10 arranged in an array, and the display units 10 are the display units 10 provided in the above embodiment; The driving control board 200 is electrically connected to the display panel 100 and is used to provide a driving signal to the display panel 100 so that the display panel 100 displays a corresponding image.

[0086] The display panel 100 includes display units 10 arranged in an array, and each display unit 10 controls the rotation of the fan blades through an electrically controlled electrode wall and an electric polarity circuit. The fan blades are made of white, colored reflective material and / or black light-absorbing material, and the surfaces of the two blades 140 can be distributed with positive and negative charges, respectively, or the ends of the two blades 140 can be coated with magnetic powder to form S-pole magnetic blocks and N-pole magnetic blocks, respectively. The drive control board 200 provides a polarity signal to the electrode wall. When the monitoring lock circuit 19 detects current, the locking member releases the fan blade, and the magnetic blocks on the blades 140 rotate under the attraction of the polarity of the electrode wall, so that the corresponding color reflective surface faces the light-emitting surface. After the image is fixed, the circuit is closed, and the lock core buckle locks the fan blades to achieve zero power consumption display. Specifically, the specific structure and function of the display unit 10 are the same or similar to the specific structure and function of the display unit 10 provided in the above embodiment, and can achieve the same technical effects. For details, please refer to the relevant introduction above.

[0087] Specifically, in the display panel 100, an insulating film layer may be provided between adjacent display units 10, and between adjacent pixel walls 13 of adjacent display units 10, to prevent charge neutralization and interference with drive signals. The insulating film layer may be made of an insulating material, such as an inorganic insulating material such as silicon dioxide or aluminum oxide, or an organic polymer insulating material. The insulating film layer may be provided based on manufacturing requirements to ensure charge separation and prevent electric field conduction between the layers.

[0088] In this embodiment, the blades 140 are driven by driving electrodes 16 to rotate, significantly improving response speed compared to the particle motion of traditional electrophoresis technology, achieving millisecond-level image switching. A locking member releases the blades 140 when power is on and secures them when power is off, allowing the display to persist for months or even longer in an unpowered state, completely resolving the issue of image disappearance after power failure in traditional electronic paper. Color display is achieved through the combination of RGB reflective blades 140, eliminating the need for color filters and reducing production costs. The uniform structure of the reflective blades 140 also avoids the uneven color rendering problem caused by black spots in the bright state of traditional electronic paper. The blade thickness and bracket 148 design are negligible, and the pinwheel-like structure of the three polarized electrode walls extends the viewing angle to over 160 degrees. Adjusting the polarity of the electrode walls controls the blade rotation speed, thereby adjusting the image refresh rate. The combination of multiple light control panels 14 in the display unit 10 enables a single display unit 10 to display a wider range of grayscale levels and color gamuts, improving display resolution.

[0089] The above is only an implementation method of the present application and does not limit the scope of patent protection of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of the present application.

Claims

1. A display unit, characterized in that: include: a first substrate; a second substrate, disposed opposite to the first substrate; a pixel wall, disposed between the first substrate and the second substrate, and forming a closed cavity with the first substrate and the second substrate; The light control panel comprises at least two blades, the at least two blades being rotatably connected to the closed cavity; the surfaces of the blades being provided with a reflective layer or a light-absorbing layer of a preset color; two of the at least two blades having opposite electrical properties or opposite magnetic properties; The driving electrodes are provided on at least two of the first substrate, the second substrate and the pixel wall along the rotation direction of the blades, and are used to drive the light control panel to rotate to a corresponding angular position to display a corresponding brightness.

2. The display unit according to claim 1, wherein The light control panel includes two coaxially arranged blades, with an angle of 180° between the two blades; the rotation axis of the blades is located on the central axis of the closed cavity; the surface of each blade is provided with a white reflective layer; the second substrate is provided with a light absorbing layer on a side close to the first substrate; The two blades carry the same amount of charge or the same magnetic moment modulus; the driving electrode includes a first electrode, a second electrode, a third electrode and a fourth electrode; the first electrode is arranged on a side of the first substrate close to the second substrate; the second electrode is arranged on a side of the light absorbing layer close to the first substrate; the third electrode and the fourth electrode are respectively arranged on two opposite pixel walls along the rotation direction of the blades.

3. The display unit according to claim 2, wherein The first electrode and the second electrode are arranged opposite to each other; the third electrode and the fourth electrode are arranged opposite to each other; In the bright state, the third electrode and the fourth electrode have opposite electrical properties and the absolute values ​​of their voltages relative to a reference point are equal, or the third electrode and the fourth electrode have opposite magnetic properties and the magnetic moment moduli are equal, so as to drive the light control plate to rotate to an angular position parallel to the first substrate; In the gray state, the first electrode and the third electrode have the same electrical or magnetic properties, the second electrode and the fourth electrode have the same electrical or magnetic properties and are opposite to the electrical or magnetic properties of the first electrode, and the light control panel is driven to rotate to a corresponding angular position by controlling the absolute value of the voltage or the magnetic moment modulus of the first electrode and the third electrode, and controlling the absolute value of the voltage or the magnetic moment modulus of the second electrode and the fourth electrode; In the black state, the first electrode and the second electrode have opposite electrical properties and the absolute values ​​of the voltages relative to the reference point are equal, or the first electrode and the second electrode have opposite magnetic properties and the magnetic moment moduli are equal, so as to drive the light control plate to rotate to an angular position perpendicular to the first substrate.

4. The display unit according to claim 2, wherein The first electrode includes at least two first sub-electrodes, and the second electrode includes at least two second sub-electrodes; a first sub-electrode close to the second sub-electrode among the at least two first sub-electrodes is defined as a first black electrode, and the other first sub-electrodes are defined as first gray electrodes; defining a second sub-electrode close to the first sub-electrode among the at least two second sub-electrodes as a second black electrode, and the other second sub-electrodes as second gray electrodes; In a direction perpendicular to the first substrate, an orthographic projection of the second black electrode on the first substrate overlaps with an orthographic projection of the first black electrode on the first substrate, an orthographic projection of the second gray electrode on the first substrate does not overlap with an orthographic projection of the first gray electrode on the first substrate and is symmetrical about the orthographic projection of the first black electrode on the first substrate; the third electrode is arranged opposite to the fourth electrode; In the bright state, the third electrode and the fourth electrode have opposite electrical properties and the absolute values ​​of their voltages relative to a reference point are equal, or the third electrode and the fourth electrode have opposite magnetic properties and the magnetic moment moduli are equal, so as to drive the light control plate to rotate to an angular position parallel to the first substrate; In the gray state, the first gray electrode and the corresponding second gray electrode have opposite electrical properties and equal absolute voltage values ​​relative to a reference point, or opposite magnetic properties and equal magnetic moment moduli, so as to drive the light control panel to rotate to a corresponding angular position; In the black state, the electrical properties of the first black state electrode and the second black state electrode are opposite and the absolute values ​​of the voltages thereof relative to the reference point are equal, or the magnetic properties of the first black state electrode and the second black state electrode are opposite and the magnetic moment moduli are equal, so as to drive the light control panel to rotate to an angular position perpendicular to the first substrate.

5. The display unit according to claim 1, wherein The light control panel comprises three coaxially arranged blades, with the angle between adjacent blades being a preset angle; the rotation axis of the blades is located on the central axis of the closed cavity; The three blades are respectively a first blade, a second blade and a third blade along a preset rotation direction, and each of the blades has a first surface and a second surface arranged along the preset rotation direction; A first reflective layer is provided on the second surface of the first blade and the first surface of the second blade, a second reflective layer is provided on the second surface of the second blade and the first surface of the third blade, and a light absorbing layer is provided on the second surface of the third blade and the first surface of the first blade; the colors of the first reflective layer and the second reflective layer are different from each other; Two of the three blades have the same charge or the same magnetic moment modulus; the driving electrode includes a fifth electrode and a sixth electrode; the fifth electrode and the sixth electrode are respectively arranged in two opposite pixel walls along the rotation direction of the blades. The display unit according to claim 5 , wherein: The display unit also includes a control circuit electrically connected to the fifth electrode and the sixth electrode, for controlling the electrical position or magnetic position of the fifth electrode or the sixth electrode to drive the blades with opposite electrical or magnetic properties to rotate to corresponding angular positions, so that the first reflective layer and the light absorbing layer or the second reflective layer and the light absorbing layer display corresponding brightness according to corresponding visual proportions.

7. The display unit according to claim 6, characterized in that The display unit includes a first light control panel, a second light control panel, and a third light control panel that are independent of each other; the first light control panel, the second light control panel, and the third light control panel are arranged in a direction parallel to the first substrate, and the rotation axes of the three light control panels are located on the same axis; The first light control plate includes the first blade, the second blade and the third blade; The second light control plate includes a fourth blade, a fifth blade, and a sixth blade distributed along a preset rotation direction, each blade having a third surface and a fourth surface arranged along the preset rotation direction; wherein the first reflective layer is provided between the fourth surface of the fourth blade and the third surface of the fifth blade, the third reflective layer is provided between the fourth surface of the fifth blade and the third surface of the sixth blade, and the light absorbing layer is provided between the fourth surface of the sixth blade and the third surface of the fourth blade; The third light control plate includes a seventh blade, an eighth blade, and a ninth blade distributed along a preset rotation direction, each blade having a fifth surface and a sixth surface arranged along the preset rotation direction; wherein the first reflective layer is arranged between the sixth surface of the seventh blade and the fifth surface of the eighth blade, the fourth reflective layer is arranged between the sixth surface of the eighth blade and the first surface of the ninth blade, and the light absorbing layer is arranged between the sixth surface of the ninth blade and the fifth surface of the seventh blade; The first reflective layer is a white reflective layer, and the second reflective layer, the third reflective layer, and the fourth reflective layer are colored reflective layers of different colors.

8. The display unit according to any one of claims 1 to 7, characterized in that: The display unit further includes a locking member and a monitoring lock circuit, wherein the locking member is provided on the rotating shaft of the blade and is electrically connected to the monitoring lock circuit; The display unit further includes a control circuit electrically connected to the drive electrode, the control circuit being configured to output a drive current to drive the blade to rotate to a corresponding angular position, and stop outputting the drive current after the blade rotates to the corresponding angular position; The monitoring lock circuit is used to monitor the driving current of the control circuit; the monitoring lock circuit is also used to: when the driving current is zero, control the locking member to be in a locked state to fix the blade; when the driving current is greater than zero, control the locking member to be in an open state to rotate the blade to a corresponding angle position.

9. The display unit according to any one of claims 1 to 7, characterized in that: Adjusting the rotation speed of the light control panel by adjusting the driving current value on the driving electrode; The closed cavity is filled with a buffer solution; when the driving electrode is in a non-conducting state, the buffer solution is used to maintain the light control panel in a static state.

10. A display device, characterized in that: include: A display panel comprising a plurality of display units arranged in an array, wherein the display units are the display units according to any one of claims 1 to 9; The drive control board is electrically connected to the display panel and is used to provide a drive signal to the display panel so that the display panel displays a corresponding image.

Images