Electronic ink film stacking structure and color electrophoretic display

Abstract

An electronic ink film stacking structure and a color electrophoretic display, the electronic ink film stacking structure comprising a display medium layer, an upper adhesive layer, a transparent substrate, a transparent conductive film and a color filter layer. The upper adhesive layer is located on the display medium layer. The transparent substrate is located on the upper adhesive layer. The transparent conductive film is located between the transparent substrate and the upper adhesive layer, wherein the transparent conductive film has a lower surface facing the upper adhesive layer. The color filter layer is located between the transparent substrate and the display medium layer. Since the color electrophoretic display reduces the total reflection and scattering of light between the color filter layer and the display medium layer by shortening the distance between the color filter layer and the display medium layer, the color mixing problem of the display device can be reduced to improve the color saturation of the display device and increase the viewing angle of the color electrophoretic display.

Description

Technical Field

[0001] The present disclosure relates to a color electrophoretic display. Background Art

[0002] The color filter layer of the color electrophoretic display is mostly set above the electronic ink film stacking structure. Therefore, there is a multi-layer structure between the color filter layer and the display medium layer, which makes it easy for light to be totally reflected and scattered between the color filter layer and the display medium layer. As a result, the color electrophoretic display is prone to color mixing problems, resulting in a decrease in color saturation; in addition, this distance will also limit the viewing angle of the display. When the viewing angle is too tilted, the light seen by the eyes will be affected by the adjacent color resistance and cause the color to shift.

[0003] In view of this, how to provide a color electrophoretic display capable of shortening the distance between the color filter layer and the display medium layer is still one of the research goals that the industry urgently needs to study. Summary of the invention

[0004] A technical aspect of the present disclosure is an electronic ink film electronic ink film stacking structure.

[0005] In one embodiment of the present disclosure, the electronic ink film stacking structure includes a display medium layer, an upper adhesive layer, a transparent substrate, a transparent conductive film, and a color filter layer. The upper adhesive layer is located on the display medium layer. The transparent substrate is located on the upper adhesive layer. The transparent conductive film is located between the transparent substrate and the upper adhesive layer, wherein the transparent conductive film has a lower surface facing the upper adhesive layer. The color filter layer is located between the lower surface of the transparent substrate and the display medium layer.

[0006] In one embodiment of the present disclosure, the color filter layer is located between the upper adhesive layer and the display medium layer.

[0007] In one embodiment of the present disclosure, the color filter layer contacts the upper surface of the display medium layer facing the upper adhesive layer.

[0008] In one embodiment of the present disclosure, the upper adhesive layer includes a first sub-layer and a second sub-layer, and the color filter layer is located between the first sub-layer and the second sub-layer.

[0009] In one embodiment of the present disclosure, the color filter layer is located between the transparent conductive film and the upper adhesive layer.

[0010] In one embodiment of the present disclosure, the color filter layer contacts the lower surface of the transparent conductive film.

[0011] In one embodiment of the present disclosure, a surface coverage of the color filter layer falls within a range of about 5% to 95%.

[0012] In one embodiment of the present disclosure, the distance between the color filter layer and the display medium layer is in a range of about 1 micrometer to 35 micrometers.

[0013] In one embodiment of the present disclosure, the color filter layer includes a plurality of color blocks, each of the color blocks is separated from each other, and a portion of the upper adhesive layer is located between each of the color blocks.

[0014] In one embodiment of the present disclosure, each color resist includes a plurality of blocks, and the blocks are separated from each other.

[0015] Another technical aspect of the present disclosure is a color electrophoretic display.

[0016] In one embodiment of the present disclosure, a color electrophoretic display comprises a driving substrate and an electronic ink film stacking structure. The electronic ink film stacking structure is located on the driving substrate. The electronic ink film stacking structure comprises a display medium layer, an upper adhesive layer, a transparent substrate, a transparent conductive film and a color filter layer. The upper adhesive layer is located on the display medium layer. The transparent substrate is located on the upper adhesive layer. The transparent conductive film is located between the transparent substrate and the upper adhesive layer, wherein the transparent conductive film has a lower surface facing the upper adhesive layer. The color filter layer is located between the lower surface of the transparent substrate and the display medium layer.

[0017] In one embodiment of the present disclosure, the electronic ink film stacking structure further includes a lower adhesive layer located between the driving substrate and the display medium layer.

[0018] In one embodiment of the present disclosure, the color filter layer is located between the upper adhesive layer and the display medium layer, and the color filter layer contacts the upper surface of the display medium layer facing the upper adhesive layer.

[0019] In one embodiment of the present disclosure, the upper adhesive layer includes a first sub-layer and a second sub-layer, and the color filter layer is located between the first sub-layer and the second sub-layer.

[0020] In one embodiment of the present disclosure, the color filter layer is located between the transparent conductive film and the upper adhesive layer.

[0021] In one embodiment of the present disclosure, a distance h1 exists between the lower surface of the color filter layer and the upper surface of the adhesive layer, and a distance h2 exists between the upper surface of the color filter layer and the upper surface of the transparent conductive film. The ratio of h1 to h2 is in a range of 0.5-1.

[0022] In one embodiment of the present disclosure, the color filter layer contacts the lower surface of the transparent conductive film.

[0023] In one embodiment of the present disclosure, the surface coverage of the color filter layer is in a range of about 5% to 95%.

[0024] In one embodiment of the present disclosure, the distance between the color filter layer and the display medium layer is in a range of about 1 micrometer to 35 micrometers.

[0025] In one embodiment of the present disclosure, the color filter layer includes a plurality of color blocks, each of the color blocks is separated from each other, and a portion of the upper adhesive layer is located between each of the color blocks.

[0026] In the above-mentioned embodiment, the color electrophoretic display reduces the total reflection and scattering of light between the color filter layer and the display medium layer by shortening the distance between the color filter layer and the display medium layer. In this way, the color mixing problem of the display device can be reduced to improve the color saturation of the display device and increase the viewing angle of the color electrophoretic display. Since the surface coverage of the color filter layer falls within the range of about 5% to 95%, the probability of light being absorbed by the color resistance can be reduced, so that more light is reflected by the display medium layer to increase the reflectivity of the color electrophoretic display. In addition, since there is a distance between two adjacent color resistances of the color filter layer, a portion of the upper adhesive layer is located between two adjacent color resistances. Such a structural design can increase the overall adhesion and reliability between the transparent substrate, the upper adhesive layer and the display medium layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a top view of a color electrophoretic display according to an embodiment of the present disclosure;

[0028] Figure 2 For along Figure 1 The cross-sectional view of line segment 2-2;

[0029] Figure 3 is a cross-sectional view of a color electrophoretic display according to another embodiment of the present disclosure;

[0030] Figure 4 is a cross-sectional view of a color electrophoretic display according to another embodiment of the present disclosure;

[0031] FIG. 5A to FIG. 5D is a top view of a color electrophoretic display according to different embodiments of the present disclosure;

[0032] Figure 6 Based on Figure 1 The relationship between viewing angle and color difference of color electrophoretic display;

[0033] Figure 7 FIG. 4 is a color gamut diagram of a color electrophoretic display according to an embodiment of the present disclosure.

[0034]

Explanation of symbols

[0035] 10,10a,10b: Color electrophoretic display

[0036] 100: Electronic ink film stacking structure

[0037] 110: Display medium layer

[0038] 112: Upper surface

[0039] 120, 120a, 120b: upper adhesive layer

[0040] 120T: Upper surface

[0041] 122b: First sublayer

[0042] 1222b: Upper surface

[0043] 124b: Second sublayer

[0044] 1242b: Lower surface

[0045] 130, 130a, 130b: Transparent substrate

[0046] 140: Color filter layer

[0047] 140T: Upper surface

[0048] 140B: Bottom surface

[0049] 142,142c,142d,142e,142f: Red color resistance

[0050] 1422c,1424c,1426c,1428c,1421d~1426d,1422e,1424e,1421f~1426f: Blocks

[0051] 144,144c,144d,144e,144f: Blue color resistance

[0052] 1442c,1444c,1446c,1448c,1441d~1446d,1442e,1444e,1441f~1446f: Block

[0053] 146,146c,146d,146e,146f: Green color resistance

[0054] 1462c,1464c,1466c,1468c,1461d~1466d,1462e,1464e,1461f~1466f: Block

[0055] 150,150a: Transparent conductive film

[0056] 152,152a: Lower surface

[0057] 160: Lower adhesive layer

[0058] 200: driving substrate

[0059] T,h1,h2: distance

[0060] S1,S2: Curve

[0061] R1,R2,G1,G2,B1,B2,C1,C2,Y1,Y2,M1,M2: Color coordinates

[0062] W1,W2: white coordinates DETAILED DESCRIPTION

[0063] The following will disclose multiple embodiments of the present invention with the accompanying drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some known conventional structures and elements will be illustrated in a simple schematic manner in the drawings. And for the sake of clarity, the thickness of the layers and regions in the drawings may be exaggerated, and the same element symbols represent the same elements in the description of the drawings.

[0064] Figure 1 FIG. 1 is a top view of a color electrophoretic display 10 according to an embodiment of the present disclosure. Figure 2 For along Figure 1 The cross-section of line segment 2-2 is shown in Figure 2-2. Figure 1 and Figure 2 The color electrophoretic display 10 includes an electronic ink thin film stacking structure 100 and a driving substrate 200. The electronic ink thin film stacking structure 100 is located on the driving substrate 200. The electronic ink thin film stacking structure 100 includes a display medium layer 110, an upper adhesive layer 120, a transparent substrate 130, a color filter layer 140, a transparent conductive film 150 and a lower adhesive layer 160. The upper adhesive layer 120 is located on the display medium layer 110. The transparent substrate 130 is located on the upper adhesive layer 120. The transparent conductive film 150 is located between the transparent substrate 130 and the upper adhesive layer 120. The transparent conductive film 150 has a lower surface 152 facing the upper adhesive layer 120. The display medium layer 110 has an upper surface 112 facing the upper adhesive layer 120. The color filter layer 140 is located between the transparent substrate 130 and the display medium layer 110. The lower adhesive layer 160 is located between the driving substrate 200 and the display medium layer 110 , and is configured to adhere the electronic ink film stacking structure 100 to the driving substrate 200 .

[0065] In the present embodiment, the color filter layer 140 includes a plurality of color resists, such as a red color resist 142, a blue color resist 144, and a green color resist 146, but the present disclosure is not limited thereto. A transparent conductive film 150 is coated on the transparent substrate 130. The transparent conductive film 150 is configured to form an electric field with the conductive layer in the driving substrate 200 to control the display medium layer 110. The red color resist 142, the blue color resist 144, and the green color resist 146 are separated from each other. In other words, a distance is separated between two adjacent color resists of the color filter layer 140. In some embodiments, the surface coverage of the color filter layer 140 falls within a range of about 5% to 95%. In other words, the projected area of ​​the color filter layer 140 on the display medium layer 110 is approximately 5% to 95% of the area of ​​the display medium layer 110. In some preferred embodiments, the surface coverage of the color filter layer 140 falls within a range of about 30% to 80%. Specifically, in a preferred embodiment, the surface coverage of the color filter layer 140 is in the range of about 40% to 70%. In this way, the probability of light being absorbed by the color filter can be reduced, so that more light is reflected by the display medium layer 110 to increase the reflectivity of the color electrophoretic display 10.

[0066] In the present embodiment, the color filter layer 140 is located between the upper adhesive layer 120 and the display medium layer 110. The color filter layer 140 contacts the upper surface 112 of the display medium layer 110. In other words, the color filter layer 140 is directly formed on the upper surface 112 of the display medium layer 110, without the need to attach the color filter layer 140 to the display medium layer 110 by an adhesive layer. In addition, since there is a distance between two adjacent color resists of the color filter layer 140, a portion of the upper adhesive layer 120 is located between two adjacent color resists. In other words, a portion of the upper adhesive layer 120 directly contacts the upper surface 112 of the display medium layer 110. Therefore, such a structural design can increase the contact area between the upper adhesive layer 120 and the display medium layer 110, so as to enhance the overall adhesion and reliability between the upper adhesive layer 120, the display medium layer 110 and the color filter layer 140.

[0067] According to the above, in the present embodiment, since there is no gap between the color filter layer 140 and the display medium layer 110, the total reflection and scattering of light between the color filter layer 140 and the display medium layer 110 can be reduced. In this way, the color mixing problem of the color electrophoretic display 10 can be reduced, so as to improve the color saturation of the color electrophoretic display 10 and increase the viewing angle of the color electrophoretic display 10. By adjusting the surface coverage of the color filter layer 140, the reflectivity of the color electrophoretic display 10 can be increased. In addition, since a portion of the upper adhesive layer 120 can be located between two adjacent color resists, the overall adhesion and reliability between the upper adhesive layer 120, the display medium layer 110 and the color filter layer 140 can be enhanced.

[0068] Figure 3 1 is a cross-sectional view of a color electrophoretic display 10a according to another embodiment of the present disclosure. The color electrophoretic display 10a is substantially the same as the color electrophoretic display 10, except that the color filter layer 140a is located between the transparent conductive film 150a and the upper adhesive layer 120a. The color filter layer 140a contacts the lower surface 152a of the transparent conductive film 150a, that is, the color filter layer 140a contacts the upper surface of the upper adhesive layer 120a. The distance T between the color filter layer 140a and the display medium layer 110 falls within a range of approximately 1 micron to 35 microns. In a preferred embodiment, the distance T between the color filter layer 140a and the display medium layer 110 falls within a range of approximately 10 microns to 30 microns. More preferably, the distance T between the color filter layer 140a and the display medium layer 110 may fall within a range of approximately 15 microns to 25 microns.

[0069] In this embodiment, the color filter layer 140a is first formed on the upper adhesive layer 120a, and the lower surface 140B of the color filter layer 140a and the upper surface 120T of the adhesive layer 120a have a distance h1. The upper adhesive layer 120a can be, for example, an optical double-sided adhesive. Then, the transparent substrate 130a and the transparent conductive film 150a are pressed onto the color filter layer 140a and the upper adhesive layer 120a, and the upper surface 140T of the color filter layer 140a and the lower surface 152a of the transparent conductive film 150a have a distance h2. The ratio of h1 to h2 is approximately between 0.5 and 1. Since the distance between the color filter layer 140a and the display medium layer 110 is short, the total reflection and scattering of light between the color filter layer 140a and the display medium layer 110 can be reduced. In this way, the color mixing problem of the color electrophoretic display 10 a can be reduced, so as to improve the color saturation of the color electrophoretic display 10 a and increase the viewing angle of the color electrophoretic display 10 .

[0070] In the present embodiment, the upper adhesive layer 120a can enhance the adhesion between the color filter layer 140a and the display medium layer 110. In addition, since there is a distance between two adjacent color resists of the color filter layer 140a, a portion of the transparent conductive film 150a and a portion of the upper adhesive layer 120a are located between the two adjacent color resists. In other words, the lower surface 152a of a portion of the transparent conductive film 150a is in direct contact with a portion of the upper adhesive layer 120. Therefore, such a structural design can increase the contact area between the transparent conductive film 150a and the upper adhesive layer 120a, so as to enhance the overall adhesion and reliability between the transparent conductive film 150a, the upper adhesive layer 120a, the display medium layer 110 and the color filter layer 140a.

[0071] Figure 4It is a cross-sectional view of a color electrophoretic display 10b according to another embodiment of the present disclosure. The color electrophoretic display 10b is substantially the same as the color electrophoretic display 10, and the difference is that the upper adhesive layer 120b includes a first sublayer 122b and a second sublayer 124b. The color filter layer 140b is located in the upper adhesive layer 120b, that is, the color filter layer 140b is located between the first sublayer 122b and the second sublayer 124b. The first sublayer 122b has an upper surface 1222b facing the second sublayer 124b, and the second sublayer 124b has a lower surface 1242b facing the first sublayer 122b. The color filter layer 140b contacts the upper surface 1222b of the first sublayer 122b and the lower surface 1242b of the second sublayer 124b. The distance T between the color filter layer 140a and the display medium layer 110 is Figure 3 The distance T of the color electrophoretic display 10 a shown is substantially the same and will not be described in detail herein.

[0072] In this embodiment, since the distance between the color filter layer 140b and the display medium layer 110 is short, the total reflection and scattering of light between the color filter layer 140b and the display medium layer 110 can be reduced. In this way, the color mixing problem of the color electrophoretic display 10b can be reduced, so as to improve the color saturation of the color electrophoretic display 10b and increase the viewing angle of the color electrophoretic display 10.

[0073] In this embodiment, the second sublayer 124b can enhance the adhesion between the color filter layer 140b and the transparent conductive film 150a. In addition, since two adjacent color resists of the color filter layer 140b are separated by a distance, a portion of the first sublayer 122b and a portion of the second sublayer 124b are located between two adjacent color resists. In other words, the upper surface 1222b of a portion of the first sublayer 122b is in direct contact with the lower surface 1242b of a portion of the second sublayer 124b. Therefore, such a structural design can increase the contact area between the first sublayer 122b and the second sublayer 124b, so as to enhance the overall adhesion and reliability between the transparent conductive film 150a, the upper adhesive layer 120b, the display medium layer 110 and the color filter layer 140b.

[0074] FIG. 5A to FIG. 5D FIG. 1 is a top view of a color electrophoretic display according to different embodiments of the present disclosure. Figure 5AAs shown, in the present embodiment, the red color resist 142c of the color filter layer 140c includes blocks 1422c, 1424c, 1426c, and 1428c separated from each other. The blue color resist 144c includes blocks 1442c, 1444c, 1446c, and 1448c separated from each other. The green color resist 146c includes blocks 1462c, 1464c, 1466c, and 1468c separated from each other. In the present embodiment, each block is a rectangle. The long sides of each block are parallel to each other, and the short sides of each block constitute the long sides of the color resist, but the present disclosure is not limited thereto.

[0075] like Figure 5B As shown, in this embodiment, the red color resist 142d of the color filter layer 140d includes blocks 1421d, 1422d, 1423d, 1424d, 1425d, and 1426d separated from each other. The blue color resist 144d includes blocks 1441d, 1442d, 1443d, 1444d, 1445d, and 1446d separated from each other. The green color resist 146d includes blocks 1461d, 1462d, 1463d, 1464d, 1465d, and 1466d separated from each other. In this embodiment, each block is circular, but the present disclosure is not limited thereto.

[0076] like Figure 5C As shown, in this embodiment, the red color resist 142e of the color filter layer 140e includes blocks 1422e and 1424e separated from each other. The blue color resist 144e includes blocks 1442e and 1444e separated from each other. The green color resist 146e includes blocks 1462e and 1464e separated from each other. In this embodiment, the long sides of each block are parallel to each other, and the long side of each block is equal to the long side of the color resist, but the disclosure is not limited thereto.

[0077] like Figure 5D As shown, the red color resist 142f of the color filter layer 140f includes blocks 1421f, 1422f, 1423f, 1424f, 1425f, and 1426f separated from each other. The blue color resist 144f includes blocks 1441f, 1442f, 1443f, 1444f, 1445f, and 1446f separated from each other. The green color resist 146f includes blocks 1461f, 1462f, 1463f, 1464f, 1465f, and 1466f separated from each other. In the present embodiment, each block is a triangle, but the present disclosure is not limited thereto.

[0078] Figure 6 Based on Figure 3 The viewing angle and color difference (ΔE * ) relationship diagram. Curve S1 represents Figure 3The color electrophoretic display 10a is shown in FIG. 1 and FIG. 2 . Curve S2 represents the color electrophoretic display 10a. The color difference (ΔE * ) is a color defined according to the CIELAB color space and The color difference formula is obtained.

[0079]

[0080] like Figure 6 As shown, by shortening the distance between the color filter layer 140a and the display medium layer, the color difference of the color electrophoretic display 10a within a viewing angle range of 120 degrees can be reduced from about 6.00 (curve S2) to about 3.00 (curve S1). In other words, within a viewing angle range of 120 degrees, the color difference of the color electrophoretic display 10a can fall within a range that is difficult for the human eye to distinguish. It can be seen that by shortening the distance between the color filter layer 140a and the display medium layer 110, the color mixing problem of the color electrophoretic display 10a can be reduced, and the viewing angle of the color electrophoretic display 10a can be increased.

[0081] Figure 7 FIG. 1 is a color gamut diagram of a color electrophoretic display according to an embodiment of the present disclosure. The color gamut defined by the color coordinates R1(red), G1(green), B1(blue), C1(cyan), M1(magenta), and Y1(yellow) in the figure is the color range that a known color electrophoretic display can display. The color gamut defined by the color coordinates R2, G2, B2, C2, M2, and Y2 in the figure is Figure 3 The color electrophoretic display 10a shown in the figure can display a range of colors. Compared with the known color electrophoretic display, the gamma value of the color electrophoretic display 10a can be increased from about 3700 to 5700. Therefore, by shortening the distance between the color filter layer 140a and the display medium layer 110, the color display range of the color electrophoretic display 10a can be increased. In addition, the expansion of the coordinate values ​​(a*, b*) in the figure also represents the increase in the color saturation of the color electrophoretic display. In addition, the coordinate values ​​of the white coordinates W1 and the white coordinates W2 in the figure show the color white balance of the color electrophoretic display. It can be seen from the white coordinates W2 (-2.9, 0.24) of the color electrophoretic display 10a and the white coordinates W1 (-4.63, -0.22) of the known color electrophoretic display that the colors in the color gamut of the color electrophoretic display 10a are more balanced. It should be understood that the coordinate (0,0) of the color measurement result represents a state where there is no color difference between the corrected bright state and the measured target without considering the brightness (L*).

[0082] In summary, the color electrophoretic display disclosed herein reduces the total reflection and scattering of light between the color filter layer and the display medium layer by shortening the distance between the color filter layer and the display medium layer. In this way, the color mixing problem of the display device can be reduced to improve the color saturation of the display device and increase the viewing angle of the color electrophoretic display. Since the surface coverage of the color filter layer falls within the range of about 5% to 95%, the probability of light being absorbed by the color resist can be reduced, so that more light is reflected by the display medium layer to increase the reflectivity of the color electrophoretic display. In addition, since there is a distance between two adjacent color resists of the color filter layer, a portion of the upper adhesive layer is located between two adjacent color resists. Such a structural design can increase the overall adhesion and reliability between the transparent substrate, the upper adhesive layer and the display medium layer.

[0083] Although the present invention has been disclosed as above in the form of an implementation method, it is not intended to limit the present invention. Anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the attached claims.

Claims

1. An electronic ink film stacking structure, characterized in that: Include: a display medium layer; an upper adhesive layer, located on the display medium layer; a transparent substrate, located on the upper adhesive layer; a transparent conductive film disposed between the transparent substrate and the upper adhesive layer, wherein the transparent conductive film has a lower surface facing the upper adhesive layer; as well as A color filter layer is located between the transparent conductive film and the display medium layer, and between the transparent conductive film and the upper adhesive layer, wherein a distance h1 is between the lower surface of the color filter layer and the upper surface of the upper adhesive layer, and a distance h2 is between the upper surface of the color filter layer and the lower surface of the transparent conductive film, and a ratio of h1 to h2 is in a range of 0.5 to 1.

2. The electronic ink film stacking structure according to claim 1, characterized in that: The upper adhesive layer includes a first sub-layer and a second sub-layer, and the color filter layer is located between the first sub-layer and the second sub-layer.

3. The electronic ink film stacking structure according to claim 1, characterized in that: The color filter layer contacts the lower surface of the transparent conductive film.

4. The electronic ink film stacking structure according to claim 1, characterized in that: The projection area of ​​the color filter layer on the display medium layer is in a range of 5% to 95% of the area of ​​the display medium layer.

5. The electronic ink film stacking structure according to claim 1, characterized in that: The distance between the color filter layer and the display medium layer is in a range of 1 micrometer to 35 micrometers.

6. The electronic ink film stacking structure according to claim 1, characterized in that: The color filter layer includes a plurality of color blocks, each of the color blocks is separated from each other, and a portion of the upper adhesive layer is located between each of the color blocks.

7. The electronic ink film stacking structure according to claim 6, characterized in that: Each of the color resists includes a plurality of blocks, and the plurality of blocks are separated from each other.

8. A color electrophoretic display, characterized in that: Include: a driving substrate; and An electronic ink film stacking structure is located on the driving substrate, and the electronic ink film stacking structure includes: a display medium layer; an upper adhesive layer, located on the display medium layer; a transparent substrate, located on the upper adhesive layer; a transparent conductive film disposed between the transparent substrate and the upper adhesive layer, wherein the transparent conductive film has a lower surface facing the upper adhesive layer; as well as A color filter layer is located between the transparent conductive film and the display medium layer, and between the transparent conductive film and the upper adhesive layer, wherein a distance h1 is between the lower surface of the color filter layer and the upper surface of the upper adhesive layer, and a distance h2 is between the upper surface of the color filter layer and the lower surface of the transparent conductive film, and a ratio of h1 to h2 is in a range of 0.5 to 1.

9. The color electrophoretic display according to claim 8, characterized in that: The electronic ink film stacking structure further comprises: A lower adhesive layer is located between the driving substrate and the display medium layer.

10. The color electrophoretic display according to claim 8, characterized in that: The upper adhesive layer includes a first sub-layer and a second sub-layer, and the color filter layer is located between the first sub-layer and the second sub-layer.

11. The color electrophoretic display according to claim 8, characterized in that: The color filter layer contacts the lower surface of the transparent conductive film.

12. The color electrophoretic display according to claim 8, characterized in that: The projection area of ​​the color filter layer on the display medium layer is in a range of 5% to 95% of the area of ​​the display medium layer.

13. The color electrophoretic display according to claim 8, characterized in that: The distance between the color filter layer and the display medium layer is in a range of 1 micrometer to 35 micrometers.

14. The color electrophoretic display according to claim 8, characterized in that: The color filter layer includes a plurality of color blocks, each of the color blocks is separated from each other, and a portion of the upper adhesive layer is located between each of the color blocks.

Images