Image super-resolution electronic paper display

Abstract

The invention discloses an image super-resolution electronic paper display, which comprises a scanning lead, a data lead and a display pixel group, and is characterized in that the display pixel group is used for displaying the same pixel point in a low-resolution image and consists of a plurality of adjacent display pixel units; each display pixel unit comprises a first driving electrode, a second driving electrode and primary color ink; each display pixel unit corresponds to one thin film transistor, and the drain electrode of each thin film transistor is connected with an energy storage capacitor; display pixel units in the display pixel groups are divided into original display pixels and interpolation display pixels, the drain electrodes of the thin film transistors corresponding to the interpolation pixels are further connected to the positive input end of the differential amplifier, and the negative input end of the differential amplifier is connected to the drain electrodes of the adjacent thin film transistors which do not belong to the same display pixel group; and the output end of the differential amplifier is connected to the second driving electrode of the interpolation display pixel. According to the invention, image super-resolution can be carried out on low-resolution images, and the display effect is improved.

Description

Technical Field

[0001] The present invention relates to the field of electronic paper display, and in particular to an electronic paper display with super-resolution image. Background Art

[0002] The flexibility of display panels is the main development direction of new display technologies. Electronic paper display technology has the characteristics of ultra-low power consumption and comfortable reading in outdoor light environments. It is one of the ideal carriers of portable and wearable flexible display terminals. Therefore, its flexibility is currently a hot topic in international research. In recent years, electronic paper display devices have attracted much attention due to their advantages such as paper-like appearance, low power consumption, and environmental protection. Compared with electrophoretic electronic paper, electrowetting electronic paper has a faster response speed and can achieve color display. It is an electronic paper display that can achieve high-resolution video playback.

[0003] Electrowetting electronic paper display technology changes the state of pixels by applying voltage between the plates to shrink or spread the ink. The pixel conversion is very fast, which can achieve high-resolution video playback. Compared with traditional LCD and other display methods, the backlight of traditional LCD consumes 90% of the energy, and the efficiency of its reflective layer is also very low; electrowetting technology does not require backlight, the reflective layer efficiency can reach 40%, and the power consumption is also lower. In addition, electrowetting technology uses oil film as raw material and does not require the complex chemical components used in LCD, so it is more stable in extreme environments such as low temperature. Electrowetting display panels can display using ambient light, and electronic devices that are often used in sunlight are more suitable for using electrowetting display panels. Electrowetting panels also have the advantages of simple structure, flexible display, high brightness, high contrast and wide viewing angle.

[0004] The prior art electronic paper display itself cannot convert a low-resolution image into an adaptive high-resolution image. Therefore, when the electronic paper display displays a low-resolution image, the display effect is poor if it is not processed by an image super-resolution algorithm. Summary of the invention

[0005] In view of some of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide an electronic paper display with image super-resolution, aiming to improve the display effect of the electronic paper display by providing an electronic paper display that can achieve image super-resolution through its own characteristics.

[0006] To achieve the above-mentioned purpose, the present invention discloses an image super-resolution electronic paper display, the electronic paper display comprising: a scanning lead, a data lead and a display pixel group, the display pixel group is used to display the same pixel point in a low-resolution image, the display pixel group is composed of a plurality of adjacent display pixel units, the display pixel unit comprises a first driving electrode and a second driving electrode, a primary color ink is arranged between the first driving electrode and the second driving electrode, the ink aperture ratio of the primary color ink is determined by the potential difference between the first driving electrode and the second driving electrode, and the ink aperture ratio determines the grayscale value of the display pixel unit; each of the display pixel units corresponds to a thin film transistor, the source of each thin film transistor is connected to the corresponding data lead, and the gate of each thin film transistor is connected to the corresponding scanning lead. The display pixel units in the display pixel group are divided into native display pixels and interpolated display pixels, the interpolated pixels are located between the native pixels of the display pixel group to which they belong and the native pixels of the adjacent display pixel group, the first driving electrode of the native pixel is connected to the drain of the corresponding thin film transistor, and the second driving electrode of the native pixel is grounded; the first driving electrode of the interpolated display pixel is connected to the drain of the corresponding thin film transistor, the drain of the interpolated pixel corresponding to the thin film transistor is also connected to the positive input terminal of the differential amplifier, the negative input terminal of the differential amplifier is connected to the drain of the adjacent thin film transistor that does not belong to the same display pixel group, and the output terminal of the differential amplifier is connected to the second driving electrode of the interpolated display pixel;

[0007] The electronic paper display is configured as follows: when the displayed image is a low-resolution image, the electronic paper display obtains the display grayscale value and the display driving voltage corresponding to the display pixel group; one side of the first driving electrode of the native pixel is subjected to the corresponding display driving voltage, and a native potential difference is formed between the first driving electrode and the grounded second driving electrode, and the actual grayscale value presented matches the display grayscale value corresponding to the display pixel group to which it belongs; one side of the first driving electrode of the interpolation pixel is subjected to the corresponding display driving voltage, and one side of the second driving electrode of the interpolation pixel is subjected to the differential voltage between the corresponding display driving voltage and the adjacent driving voltage, an interpolation potential difference is formed between the first driving electrode and the second driving electrode of the interpolation pixel, and the actual grayscale value presented is between the display grayscale value corresponding to the display pixel group to which it belongs and the display grayscale value corresponding to the adjacent display pixel group.

[0008] Optionally, the differential amplifier of the electronic paper display is further provided with a switch, and when the switch of the differential amplifier is in a closed state, the differential amplifier is not turned on, and the second driving electrode of the interpolation pixel is grounded.

[0009] Optionally, the interpolation pixels being adjacent to the native pixels includes being horizontally adjacent, vertically adjacent, and diagonally adjacent.

[0010] Optionally, when the display pixel group includes four of the display pixel units, the four display pixels are arranged in a "field" shape. If one of them is determined as the native pixel, the other three are the interpolation pixels.

[0011] Optionally, the differential voltage is a multiple of the corresponding display driving voltage minus the adjacent driving voltage.

[0012] Optionally, the scanning lead is a row scanning lead, and the data lead is a column data lead. When the interpolation pixel and its adjacent native pixel belonging to the same row are connected to the row scanning lead of the same row, the adjacent driving voltage is directly provided by the column data lead; when the interpolation pixel and its adjacent native pixel belonging to the same row are connected to the row scanning leads of different rows, the adjacent driving voltage is provided by the energy storage capacitor.

[0013] Optionally, the energy storage capacitor is used to maintain the driving voltage after the data lead ends driving, so that the display pixel unit continuously emits light.

[0014] Optionally, the display pixel unit includes a lower white hydrophobic layer, the primary color ink is disposed on the lower white hydrophobic layer, the first driving electrode is disposed below the lower white hydrophobic layer, an upper transparent hydrophobic layer is disposed above the primary color ink, and the second driving electrode is disposed above the upper transparent hydrophobic layer.

[0015] Optionally, when the resolution of the displayed image is lower than the resolution of the electronic paper display, the displayed image is a low-resolution image.

[0016] Optionally, the interpolation potential difference output by the differential amplifier is between the native potential difference of the same kind and the adjacent native potential difference.

[0017] Beneficial effects of the present invention: When the electronic display of the present invention displays a low-resolution image, the display grayscale value and the display driving voltage corresponding to the display pixel group are obtained; the first driving electrode side of the native pixel is subjected to the corresponding display driving voltage, and a native potential difference is formed between the first driving electrode side of the native pixel and the grounded second driving electrode, and the actual grayscale value presented matches the display grayscale value corresponding to the display pixel group to which it belongs; the first driving electrode side of the interpolation pixel is subjected to the corresponding display driving voltage, and the second driving electrode side of the interpolation pixel is subjected to the differential voltage between the corresponding display driving voltage and the adjacent driving voltage, and an interpolation potential difference is formed between the first driving electrode and the second driving electrode of the interpolation pixel, and the actual grayscale value presented is between the display grayscale value corresponding to the display pixel group to which it belongs and the display grayscale value corresponding to the adjacent display pixel group. When the display grayscale value corresponding to the adjacent display pixel group is greater than the current display pixel group, the differential voltage of the interpolation pixel is negative, the interpolation potential difference becomes larger, the ink opening rate of the interpolation pixel becomes larger, and the actual grayscale value of the interpolation pixel will deflect toward the display grayscale value corresponding to the adjacent display pixel group, forming interpolation, thereby restoring the image content and achieving the effect of improving the image resolution. Similarly, when the display grayscale value corresponding to the adjacent display pixel group is smaller than the current display pixel group, the differential voltage of the interpolated pixel is positive, the interpolated potential difference becomes smaller, the ink aperture ratio of the interpolated pixel becomes smaller, and the actual grayscale value of the interpolated pixel will deflect toward the display grayscale value corresponding to the adjacent display pixel group, forming an interpolation, thereby restoring the image content and achieving the effect of improving the image resolution. The present invention does not require complex algorithm support, but only needs to be based on the structural characteristics of the electronic paper display itself to achieve image super-resolution and improve the display effect of the electronic paper display.

[0018] In summary, the present invention can achieve image super-resolution through the characteristics of the electronic paper display itself, improve display quality, reduce the image super-resolution processing flow, and save resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural schematic diagram of an image super-resolution electronic paper display provided by a specific embodiment of the present invention;

[0020] Figure 2 is a structural schematic diagram of a differential amplifier provided by a specific embodiment of the present invention;

[0021] Figure 3 is a schematic structural diagram of a display pixel provided by a specific embodiment of the present invention;

[0022] Figure 4 is a schematic diagram illustrating adjacent display pixel groups provided by a specific embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram for explaining the types of display pixel units provided by a specific embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present invention discloses an image super-resolution electronic paper display. Those skilled in the art can refer to the content of this article and appropriately improve the technical details for implementation. It should be particularly noted that all similar replacements and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The device and application of the present invention have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the device and application described herein without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention.

[0025] The applicant has found through research that the prior art electronic paper display itself cannot convert low-resolution images into adaptive high-resolution images. Therefore, when the electronic paper display displays low-resolution images, the display effect is poor if it is not processed by the image super-resolution algorithm.

[0026] Therefore, the present invention provides an image super-resolution electronic paper display, such as Figure 1 As shown, the electronic paper display comprises: a scanning lead, a data lead and a display pixel group, the display pixel group is used to display the same pixel point in the low-resolution image, the display pixel group is composed of a plurality of adjacent display pixel units, the display pixel unit comprises a first driving electrode and a second driving electrode, a primary color ink is arranged between the first driving electrode and the second driving electrode, the ink aperture ratio of the primary color ink is determined by the potential difference between the first driving electrode and the second driving electrode, and the ink aperture ratio determines the grayscale value of the display pixel unit; each display pixel unit corresponds to a thin film transistor, the source of each thin film transistor is connected to the corresponding data lead, the gate of each thin film transistor is connected to the corresponding scanning lead, and each thin film transistor is connected to the corresponding scanning lead. The drain of the body tube is connected to a storage capacitor; the display pixel units in the display pixel group are divided into native display pixels and interpolated display pixels, the interpolated pixels are located between the native pixels of the display pixel group to which they belong and the native pixels of the adjacent display pixel group, the first driving electrode of the native pixel is connected to the drain of the corresponding thin film transistor, and the second driving electrode of the native pixel is grounded; the first driving electrode of the interpolated display pixel is connected to the drain of the corresponding thin film transistor, the drain of the corresponding thin film transistor of the interpolated pixel is also connected to the positive input terminal of the differential amplifier, the negative input terminal of the differential amplifier is connected to the drain of the adjacent thin film transistor that does not belong to the same display pixel group, and the output terminal of the differential amplifier is connected to the second driving electrode of the interpolated display pixel.

[0027] The electronic paper display is configured as follows: when the displayed image is a low-resolution image, the electronic paper display obtains the display grayscale value and display driving voltage corresponding to the display pixel group; one side of the first driving electrode of the native pixel is subjected to the corresponding display driving voltage, and a native potential difference is formed between the first driving electrode and the grounded second driving electrode, and the actual grayscale value presented matches the display grayscale value corresponding to the display pixel group to which it belongs; one side of the first driving electrode of the interpolation pixel is subjected to the corresponding display driving voltage, and one side of the second driving electrode of the interpolation pixel is subjected to the differential voltage between its corresponding display driving voltage and the adjacent driving voltage, an interpolation potential difference is formed between the first driving electrode and the second driving electrode of the interpolation pixel, and the actual grayscale value presented is between the display grayscale value corresponding to the display pixel group to which it belongs and the display grayscale value corresponding to the adjacent display pixel group.

[0028] It should be noted that, in the embodiment of the present invention, the ink opening ratio of the primary color ink is proportional to the potential difference between the first drive electrode and the second drive electrode. The greater the potential difference, the greater the ink opening ratio. Therefore, in order to improve the resolution of the displayed image, it is necessary to make the ink opening ratio of the interpolated pixel in the display pixel group between the native pixel of the display pixel group to which it belongs and the native pixel of the adjacent display pixel group, that is, to make the interpolated potential difference between the two. The embodiment of the present invention can achieve this effect through the above structure without the help of an algorithm, thus reducing program processing.

[0029] In this specific embodiment, it can be Figure 5 As shown, Figure 5 In the figure, 504, 505, 507 and 508 are display pixel units belonging to the same display pixel group, 507 is a native pixel, and 504, 505 and 508 are interpolated pixels. 501 and 502 are display pixel units belonging to the same display pixel group, and there are two display pixel units not shown, 501 is a native pixel, and 502 is an interpolated pixel. 503 is a group of native pixels of a display pixel group, and there are three other display pixel units not shown. 506 and 509 are display pixel units belonging to the same display pixel group, and there are two display pixel units not shown, 509 is a native pixel, and 506 is an interpolated pixel. 504 is an interpolated pixel between 507 and 501, 505 is an interpolated pixel between 507 and 503, and 508 is an interpolated pixel between 507 and 509; 502 is an interpolated pixel between 501 and 503; 506 is an interpolated pixel between 509 and.

[0030] In this specific embodiment, the specific structure of the differential amplifier can be as follows: Figure 2 As shown, Figure 2 201, 202, 203, 204 are four field effect transistors, 205 is a positive input terminal, 206 is a negative input terminal, and 207 is an output terminal. Figure 2 The differential amplifier has a single-ended output.

[0031] In this specific embodiment, the differential amplifier of the electronic paper display is further provided with a switch. When the switch of the differential amplifier is in the off state, the differential amplifier is not conducting, and the second driving electrode of the interpolated pixel is grounded.

[0032] It should be noted that this switch will be enabled after determining whether the displayed image is a low-resolution image. If the displayed image is not a low-resolution image, the differential amplifier is turned off so that the second driving electrode of each display pixel unit is grounded, and thus each can normally display the required gray-scale value corresponding to it. If the displayed image is a low-resolution image, the second driving electrode of the interpolated pixel is subject to a differential voltage. This embodiment is used to ensure that high-resolution images can also be normally displayed.

[0033] In this specific embodiment, the interpolated pixel being adjacent to the native pixel includes horizontal adjacency, vertical adjacency, and diagonal adjacency. As shown in Figure 4 Figure 401 is the current display pixel group, and the three lines 402, 403, and 404 are respectively the schematic lines of the horizontal adjacency, vertical adjacency, and diagonal adjacency of the interpolated pixels of the current display pixel group.

[0034] In this specific embodiment, when the display pixel group includes four display pixel units, the four display pixels are arranged in a "field" shape. If one of them is determined as the native pixel, the other three are interpolated pixels.

[0035] In this specific embodiment, the differential voltage is the multiple of the corresponding display driving voltage minus the adjacent driving voltage.

[0036] It should be noted that the multiple needs to ensure that the interpolated potential difference output by the differential amplifier is between the native potential difference of the same category and the adjacent native potential difference.

[0037] In this specific embodiment, the scanning lead is a row scanning lead, and the data lead is a column data lead. When the interpolated pixel and its adjacent and co-owned native pixel are connected to the row scanning leads of the same row, the adjacent driving voltage is directly provided by the column data lead; when the interpolated pixel and its adjacent and co-owned native pixel are connected to the row scanning leads of different rows, the adjacent driving voltage is provided by the energy storage capacitor.

[0038] It should be noted that during progressive scanning, the display pixel units in different rows are driven successively. Therefore, it is necessary to ensure that when the difference pixel is driven, the second driving electrode has a voltage.

[0039] In this specific embodiment, the energy storage capacitor is used to maintain the driving voltage after the data lead ends driving so that the display pixel unit continuously emits light.

[0040] It should be noted that in the embodiment of the present invention, the energy storage capacitor also generates an input to the differential amplifier.

[0041] In this specific embodiment, as Figure 3 shown, the display pixel unit includes a lower white hydrophobic layer 301, a primary color ink 302 is disposed on the lower white hydrophobic layer 301, a first driving electrode 303 is disposed below the lower white hydrophobic layer 301, an upper transparent hydrophobic layer 304 is disposed above the primary color ink 302, and a second driving electrode 305 is disposed above the upper transparent hydrophobic layer 304.

[0042] In this specific embodiment, when the resolution of the displayed image is lower than the resolution of the e-paper display, the displayed image is a low-resolution image.

[0043] It should be noted that when the resolution of the first image is lower than the resolution of the e-paper display, there must be multiple adjacent display pixels with the same display gray level value. For example, in a 2k image on a 4k display, four pixels in a "field" shape are required to display one pixel in the image.

[0044] In this specific embodiment, the interpolation potential difference output by the differential amplifier is between the native potential difference of the same group and the adjacent native potential difference.

[0045] When the electronic display according to the embodiment of the present invention displays a low-resolution image, it obtains the display gray level value corresponding to the display pixel group and its display driving voltage; one side of the first driving electrode of the native pixel is subjected to the corresponding display driving voltage, and a native potential difference is formed between it and the grounded second driving electrode, and the actual gray level value presented matches the display gray level value corresponding to its所属 display pixel group; one side of the first driving electrode of the interpolation pixel is subjected to the corresponding display driving voltage, and one side of the second driving electrode of the interpolation pixel is subjected to the differential voltage between its corresponding display driving voltage and the adjacent driving voltage, and an interpolation potential difference is formed between the first driving electrode and the second driving electrode of the interpolation pixel, and the actual gray level value presented is between the display gray level value corresponding to its所属 display pixel group and the display gray level value corresponding to its adjacent display pixel group. When the display gray level value corresponding to the adjacent display pixel group is greater than the current display pixel group, the differential voltage of the interpolation pixel is negative, the interpolation potential difference becomes larger, the ink opening rate of the interpolation pixel becomes larger, and the actual gray level value of the interpolation pixel will deflect towards the display gray level value corresponding to the adjacent display pixel group, forming interpolation, so as to restore the image content and achieve the effect of improving the image resolution. Similarly, when the display gray level value corresponding to the adjacent display pixel group is less than the current display pixel group, the differential voltage of the interpolation pixel is positive, the interpolation potential difference becomes smaller, the ink opening rate of the interpolation pixel becomes smaller, and the actual gray level value of the interpolation pixel will deflect towards the display gray level value corresponding to the adjacent display pixel group, forming interpolation, so as to restore the image content and achieve the effect of improving the image resolution. The embodiment of the present invention does not require complex algorithm support, and only needs to be based on the structural characteristics of the e-paper display itself to achieve image super-resolution and improve the display effect of the e-paper display.

[0046] In summary, the embodiments of the present invention can achieve image super-resolution through the characteristics of the electronic paper display itself, improve display quality, reduce the image super-resolution processing flow, and save resources.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0048] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. An image super-resolution electronic paper display, characterized in that: The electronic paper display comprises: a scanning lead, a data lead and a display pixel group, wherein the display pixel group is used to display the same pixel point in a low-resolution image, and the display pixel group is composed of a plurality of adjacent display pixel units, wherein the display pixel unit comprises a first driving electrode and a second driving electrode, and a primary color ink is arranged between the first driving electrode and the second driving electrode, and the ink aperture ratio of the primary color ink is determined by the potential difference between the first driving electrode and the second driving electrode, and the ink aperture ratio determines the grayscale value of the display pixel unit; each of the display pixel units corresponds to a thin film transistor, and the source of each thin film transistor is connected to the corresponding data lead, the gate of each thin film transistor is connected to the corresponding scanning lead, and the drain of each thin film transistor is connected to the corresponding scanning lead. The first driving electrode of the interpolated display pixel is connected to a drain electrode of the corresponding thin film transistor, and the second driving electrode of the native pixel is grounded; the first driving electrode of the interpolated display pixel is connected to a drain electrode of the corresponding thin film transistor, and the drain electrode of the interpolated pixel corresponding to the thin film transistor is also connected to a positive input terminal of a differential amplifier, and a negative input terminal of the differential amplifier is connected to a drain electrode of the thin film transistor that is adjacent and does not belong to the same display pixel group, and an output terminal of the differential amplifier is connected to the second driving electrode of the interpolated display pixel; The electronic paper display is configured as follows: when the displayed image is a low-resolution image, the electronic paper display obtains the display grayscale value and the display driving voltage corresponding to the display pixel group; one side of the first driving electrode of the native pixel is subjected to the corresponding display driving voltage, and a native potential difference is formed between the first driving electrode and the grounded second driving electrode, and the actual grayscale value presented matches the display grayscale value corresponding to the display pixel group to which it belongs; one side of the first driving electrode of the interpolation pixel is subjected to the corresponding display driving voltage, and one side of the second driving electrode of the interpolation pixel is subjected to the differential voltage between the corresponding display driving voltage and the adjacent driving voltage, an interpolation potential difference is formed between the first driving electrode and the second driving electrode of the interpolation pixel, and the actual grayscale value presented is between the display grayscale value corresponding to the display pixel group to which it belongs and the display grayscale value corresponding to the adjacent display pixel group.

2. The image super-resolution electronic paper display according to claim 1, characterized in that: The differential amplifier of the electronic paper display is further provided with a switch. When the switch of the differential amplifier is in a closed state, the differential amplifier is not turned on, and the second driving electrode of the interpolation pixel is grounded.

3. The image super-resolution electronic paper display according to claim 1, characterized in that: The interpolation pixel and the native pixel are adjacent to each other in the following ways: horizontally, vertically, and diagonally.

4. The image super-resolution electronic paper display according to claim 1, characterized in that: When the display pixel group includes four of the display pixel units, the four display pixels are arranged in a "field" shape. One of them is determined as the native pixel, and the other three are the interpolated pixels.

5. The image super-resolution electronic paper display according to claim 1, characterized in that: The differential voltage is the multiple obtained by subtracting the adjacent driving voltage from the corresponding display driving voltage.

6. The image super-resolution electronic paper display according to claim 1, characterized in that: The scanning lead is a row scanning lead, and the data lead is a column data lead. When the interpolated pixel and its adjacent and co-owned native pixel are connected to the same row scanning lead, the adjacent driving voltage is directly provided by the column data lead; when the interpolated pixel and its adjacent and co-owned native pixel are connected to different row scanning leads, the adjacent driving voltage is provided by the energy storage capacitor.

7. The image super-resolution electronic paper display according to claim 1, characterized in that: The energy storage capacitor is used to maintain the driving voltage after the data lead ends driving, so that the display pixel unit continues to emit light.

8. The image super-resolution electronic paper display according to claim 1, characterized in that: The display pixel unit includes a lower white hydrophobic layer, the primary color ink is disposed on the lower white hydrophobic layer, the first driving electrode is disposed below the lower white hydrophobic layer, an upper transparent hydrophobic layer is disposed above the primary color ink, and the second driving electrode is disposed above the upper transparent hydrophobic layer.

9. The image super-resolution electronic paper display according to claim 1, characterized in that: When the resolution of the displayed image is lower than the resolution of the electronic paper display, the displayed image is a low-resolution image.

10. The image super-resolution electronic paper display according to claim 1, characterized in that: The interpolated potential difference output by the differential amplifier is between the native potential difference of the same group and the adjacent native potential difference.

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