Display module and manufacturing method thereof, and display device

Abstract

The present invention discloses a display module and a manufacturing method thereof, and a display device. The display module includes: a first dimming layer, located on one side of a display panel, including a first substrate and a first convex stripe portion protruding from the first substrate along a first direction, the first convex stripe portion including a plurality of first convex stripes extending along a second direction and arranged along a third direction, and a first interval between adjacent first convex stripes; a first electrode layer including a first portion covering the first convex stripe; a first electrochromic layer covering the first portion; and a second electrode layer located on a side of the first electrochromic layer away from the first electrode layer. By changing the voltage difference between the first electrode layer and the second electrode layer, the transparent state and the dark state of the first electrochromic layer are switched, and the wide viewing angle state and the narrow viewing angle state of the display module are switched, thereby switching the shared state and the anti-peeping state of the display module is switched.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and more specifically, to a display module and a manufacturing method thereof, and a display device. Background Art

[0002] With the development of display technology, display devices such as computers and mobile phones have been increasingly widely used in people's lives. These display devices display information through display panels. Usually, display panels have a large viewing angle. When the displayed content is relatively private, there may be situations where bystanders peek into the display interface, resulting in leakage of displayed content and inconvenience to users.

[0003] Therefore, there is an urgent need for a display module that can switch between a shared state and an anti-peeping state during display. Summary of the invention

[0004] In view of this, the present invention provides a display module and a manufacturing method thereof, and a display device, so as to realize the switching between a sharing state and an anti-peeping state.

[0005] In one aspect, the present invention provides a display module, comprising:

[0006] Display panel;

[0007] A first dimming layer is located on one side of the display panel, and includes a first substrate and a first convex stripe portion protruding from the first substrate along a first direction, wherein the first convex stripe portion is located on a side of the first substrate close to a light emitting surface of the display module, and the first direction is a thickness direction of the display panel; the first convex stripe portion includes a plurality of first convex stripes extending along a second direction and arranged along a third direction, and a first interval is provided between adjacent first convex stripes, and the first direction, the second direction and the third direction intersect each other;

[0008] A first electrode layer includes a first portion, wherein the first portion covers the first convex strip;

[0009] A first electrochromic layer covers the first portion, wherein along the first direction, a minimum distance between the first electrochromic layer and the first substrate is P1, a maximum distance between the first portion and the first substrate is P2, and P1<P2;

[0010] The second electrode layer is located on a side of the first electrochromic layer away from the first electrode layer.

[0011] In another aspect, the present invention provides a method for manufacturing a display module, comprising:

[0012] providing a display panel;

[0013] Produce the first dimming layer, including:

[0014] providing a first substrate;

[0015] A first convex strip portion is formed by protruding from the first substrate along a first direction, wherein the first direction is the thickness direction of the display panel; the first convex strip portion includes a plurality of first convex strips extending along a second direction and arranged along a third direction, with a first interval between adjacent first convex strips, and the first direction, the second direction and the third direction intersect each other;

[0016] sputtering a first electrode layer on a side of the first convex strip away from the first substrate, the first electrode layer comprising a first portion, the first portion covering the first convex strip;

[0017] A first electrochromic layer is formed on a side of the first electrode layer away from the first substrate, the first electrochromic layer covers the first portion, and along the first direction, the minimum distance from the first electrochromic layer to the first substrate is P1, the maximum distance from the first portion to the first substrate is P2, and P1<P2;

[0018] sputtering a second electrode layer on a side of the first electrochromic layer away from the first substrate;

[0019] The display panel is laminated to the first dimming layer.

[0020] In yet another aspect, the present invention provides a display device, comprising the above-mentioned display module.

[0021] Compared with the prior art, the display module provided by the present invention achieves at least the following beneficial effects:

[0022] The display module provided by the present invention includes a display panel; a first dimming layer, located on one side of the display panel, including a first substrate and a first convex stripe portion protruding from the first substrate along a first direction, the first convex stripe portion is located on a side of the first substrate close to a light-emitting surface of the display module, and the first direction is the thickness direction of the display panel; the first convex stripe portion includes a plurality of first convex stripes extending along a second direction and arranged along a third direction, a first interval is provided between adjacent first convex stripes, and the first direction, the second direction and the third direction intersect respectively; a first electrode layer, including a first portion, the first portion covers the first convex stripe; a first electrochromic layer, covering the first portion, along the first direction, the minimum distance from the first electrochromic layer to the first substrate is P1, the maximum distance from the first portion to the first substrate is P2, and P1<P2; ​​a second electrode layer, located on a side of the first electrochromic layer away from the first electrode layer. Along the first direction, the first electrochromic layer is located between the first part and the second electrode layer, and the first part wraps the outer surface of the first convex strip. When there is a first voltage difference between the first electrode layer and the second electrode layer, the first electrochromic layer is in a transparent state, and the first electrochromic layer will not block light at any angle. At this time, the display panel is in a wide viewing angle state; when there is a second voltage difference between the first electrode layer and the second electrode layer, the first electrochromic layer is in a dark state, and the light passing through the first convex strip and the first part will be blocked by the dark first electrochromic layer and cannot be emitted. The light can only be emitted from the gap between adjacent first electrochromic layers. For this part of the light, the first convex strips on both sides of the first interval are above the dark first electrochromic layer, which will block the emission of part of the large-angle light, thereby realizing anti-peeping under a wide viewing angle. At this time, the display panel is in a narrow viewing angle state. By changing the voltage difference between the first electrode layer and the second electrode layer, the transparent state and the dark state of the first electrochromic layer are switched, and the conversion of the wide viewing angle state and the narrow viewing angle state of the display module is realized, thereby realizing the switching of the shared state and the anti-peeping state of the display module.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the technical effects described above at the same time.

[0024] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0026] Figure 1 It is a top view of the display module provided by the present invention;

[0027] Figure 2 yes Figure 1 A cross-section in the A-A' direction;

[0028] Figure 3 yes Figure 1 Another cross-sectional view along the A-A' direction;

[0029] Figure 4 is another top view of the display module provided by the present invention;

[0030] Figure 5 yes Figure 4 A cross-section in the B-B' direction;

[0031] Figure 6 This is another top view of the display module provided by the present invention;

[0032] Figure 7 yes Figure 6 A cross-section in the C-C' direction;

[0033] Figure 8 yes Figure 6 A cross-section in the D-D' direction;

[0034] Fig. 9 yes Figure 1 Another cross-sectional view along the A-A' direction;

[0035] Fig.10 This is another top view of the display module provided by the present invention;

[0036] Fig.11 yes Fig.10 A cross-section in the E-E' direction;

[0037] Fig.12 yes Fig.10 A cross-section in the F-F' direction;

[0038] Fig.13 This is another top view of the display module provided by the present invention;

[0039] Fig.14 It is a flow chart of the method for manufacturing the display module provided by the present invention;

[0040] Fig.15 This is a process flow chart for manufacturing the first dimming layer provided by the present invention;

[0041] Fig.16 This is a flow chart for making a second dimming layer provided by the present invention;

[0042] Fig.17 It is a plan schematic diagram of the display device provided by the present invention. DETAILED DESCRIPTION

[0043] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0044] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0045] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0046] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0047] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0048] Reference Figure 1 , Figure 2 and Figure 3 , Figure 1 is a top view of a display module provided by the present invention, Figure 2 yes Figure 1 A cross-section along the A-A' direction, Figure 3 yes Figure 1 Another cross-sectional view taken along the line AA' is used to illustrate a specific embodiment of the display module 100 provided by the present invention. The display module 100 includes:

[0049] Display panel 01;

[0050] The first dimming layer 02 is located on one side of the display panel 01, and includes a first substrate 03 and a first convex stripe portion 04 protruding from the first substrate 03 along a first direction X, the first convex stripe portion 04 is located on a side of the first substrate 03 close to the light emitting surface of the display module 100, and the first direction X is the thickness direction of the display panel 01; the first convex stripe portion 04 includes a plurality of first convex stripes 05 extending along a second direction Y and arranged along a third direction Z, and a first interval is provided between adjacent first convex stripes 05, and the first direction X, the second direction Y and the third direction Z intersect respectively; the first electrode layer 06 includes a first portion 061, and the first portion 061 covers the first convex stripes 05; the first electrochromic layer 07 covers the first portion 061, and along the first direction X, the minimum distance from the first electrochromic layer 07 to the first substrate 03 is P1, and the maximum distance from the first portion 061 to the first substrate 03 is P2, and P1<P2; ​​the second electrode layer 08 is located on a side of the first electrochromic layer 07 away from the first electrode layer 06.

[0051] It should be noted that, refer to Figure 1 The display panel 01 is in a rectangular shape. Of course, it is not limited thereto. The display panel 01 may also be in a circular shape or an irregular shape. This embodiment does not impose any specific limitation thereto. The display panel 01 and the first dimming layer 02 may be bonded together by optical adhesive. Figure 2 and Figure 3 The display panel 01 is provided with a light source by a backlight 09, wherein the backlight 09 may be a direct-lit backlight or an edge-lit backlight, and this embodiment does not impose any specific restrictions thereon. The backlight 09 and the first dimming layer 02 or the display panel 01 may be bonded together by optical adhesive. Figure 2 It is only illustrated that the display panel 01 is a liquid crystal display panel 01, including a color filter substrate 10 and an array substrate 11 arranged relatively to each other along a first direction X, a liquid crystal layer 12 is sandwiched between the color filter substrate 10 and the array substrate 11, a first polarizer 13 is provided on the side of the color filter substrate 10 away from the array substrate 11, and a second polarizer 14 is provided on the side of the array substrate 11 away from the color filter substrate 10, the color filter substrate 10 includes a substrate 15, a black matrix 16 is provided on the side of the substrate 15 close to the liquid crystal layer 12, color resists 17 are provided between adjacent black matrices 16, and a planarization layer 18 is provided on the side of the color resist 17 away from the substrate 15. For the sake of convenience of illustration, the substrate 15, the array substrate 11 and the planarization layer 18 are not filled in this embodiment. The display panel 01 in this embodiment is not limited to the liquid crystal display panel 01, and the display panel 01 in this embodiment can be any display panel 01 that requires a backlight 09 to provide a light source.

[0052] It can be understood that the first dimming layer 02 includes a first substrate 03, a first convex stripe portion 04, a first electrode layer 06, a first electrochromic layer 07, and a second electrode layer 08. The first electrochromic layer 07 uses an electrochromic material. The electrochromic material undergoes a chemical reaction under the drive of different electric fields, and a color change occurs during the oxidation-reduction process, that is, by changing the electric field of the electrochromic material, the conversion of the electrochromic material between a transparent state and a dark state can be achieved. The material of the first convex stripe portion 04 is an organic resin, and the material of the first electrode layer 06 and the second electrode layer 08 is indium tin oxide (ITO), that is, the first convex stripe portion 04, the first electrode layer 06, and the second electrode layer 08 are all transparent, and light can be emitted through the first convex stripe portion 04, the first electrode layer 06, and the second electrode layer 08. The first electrode layer 06 includes a first portion 061, which covers the first convex strip 05; a first electrochromic layer 07, which covers the first portion 061; and a second electrode layer 08, which is located on a side of the first electrochromic layer 07 away from the first electrode layer 06. Figure 2 , Figure 2 Only the display module 100 is shown in a shared state. When there is a first voltage difference between the first portion 061 and the second electrode layer 08, the first electrochromic layer 07 is in a transparent state. The transparent first electrochromic layer 07 does not block light. At this time, the display panel 01 is in a shared state. Figure 3 , Figure 3 The display module 100 is only shown in the anti-peeping state. When there is a second voltage difference between the first portion 061 and the second electrode layer 08, the first electrochromic layer 07 is in a dark state. At this time, light cannot penetrate the area covered by the first electrochromic layer, and light can only be emitted from the gaps between adjacent first electrochromic layers 07. Since the first portion 061 wraps the first convex strip 05 along the outer contour of the first convex strip 05, and the first electrochromic layer 07 wraps the first portion 061 along the outer contour of the first portion 061, the first electrochromic layer 07 in the dark state forms a shutter structure. , along the first direction X, the first electrochromic layer 07 has a certain height, so that the large-angle light emitted from the gap between adjacent first electrochromic layers 07 is blocked by the first electrochromic layer 07 and cannot be emitted, so that the brightness of the display panel 01 at a large viewing angle becomes darker, thereby achieving anti-peeping. At this time, the display panel 01 is in the anti-peeping state. By changing the voltage difference between the first electrode layer 06 and the second electrode layer 08, the transparent state and the dark state of the first electrochromic layer 07 can be switched, thereby achieving the switching of the shared state and the anti-peeping state of the display panel 01.

[0053] Compared with the prior art, the display module 100 provided in this embodiment has at least the following advantages:

[0054] The display module 100 provided by the present invention includes a display panel 01; a first dimming layer 02, which is located on one side of the display panel 01, and includes a first substrate 03 and a first convex stripe portion 04 protruding from the first substrate 03 along a first direction X, the first convex stripe portion 04 is located on a side of the first substrate 03 close to the light emitting surface of the display module 100, and the first direction X is the thickness direction of the display panel 01; the first convex stripe portion 04 includes a plurality of first convex stripes 05 extending along a second direction Y and arranged along a third direction Z, and there is a gap between adjacent first convex stripes 05. There is a first interval, and the first direction X, the second direction Y and the third direction Z intersect respectively; the first electrode layer 06 includes a first portion 061, and the first portion 061 covers the first convex strip 05; the first electrochromic layer 07 covers the first portion 061, and along the first direction X, the minimum distance from the first electrochromic layer 07 to the first substrate 03 is P1, and the maximum distance from the first portion 061 to the first substrate 03 is P2, and P1<P2; the second electrode layer 08 is located on the side of the first electrochromic layer 07 away from the first electrode layer 06. Along the first direction X, the first electrochromic layer 07 is located between the first portion 061 and the second electrode layer 08, and the first portion 061 wraps the outer surface of the first convex strip 05. When there is a first voltage difference between the first electrode layer 06 and the second electrode layer 08, the first electrochromic layer 07 is transparent, and the first electrochromic layer 07 does not block light at any angle. At this time, the display panel 01 is in a wide viewing angle state; when there is a second voltage difference between the first electrode layer 06 and the second electrode layer 08, the first electrochromic layer 07 is dark, and the light passing through the first convex strip 05 and the first portion 061 will be reflected by the dark first electrochromic layer 07. The light is blocked and cannot be emitted, and the light can only be emitted from the gap between adjacent first electrochromic layers 07. For this part of the light, the first electrochromic layer 07 in the dark state is above the first convex strips 05 on both sides of the first interval, which will block the emission of part of the large-angle light, thereby realizing anti-peeping at a wide viewing angle. At this time, the display panel 01 is in a narrow viewing angle state. By changing the voltage difference between the first electrode layer 06 and the second electrode layer 08, the transparent state and the dark state of the first electrochromic layer 07 are switched, and the conversion between the wide viewing angle state and the narrow viewing angle state of the display module 100 is realized, thereby realizing the switching between the shared state and the anti-peeping state of the display module 100.

[0055] In some optional embodiments, referring to Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 4 is another top view of the display module provided by the present invention, Figure 5 yes Figure 4 In a cross-sectional view taken along the BB′ direction, the first dimming layer 02 is located on the light emitting side of the display panel 01 , or the first dimming layer 02 is located on the backlight side of the display panel 01 .

[0056] It is understandable that in Figure 2 and Figure 3 In the figure, only the first dimming layer 02 is shown to be located at the backlight side of the display panel 01, that is, the first dimming layer 02 is located between the display panel 01 and the backlight 09, and the light provided by the backlight 09 first passes through the first dimming layer 02 and then passes through the display panel 01; Figure 5 It is only indicated that the first dimming layer 02 is located on the light-emitting side of the display panel 01, that is, the first dimming layer 02 is located on the side of the display panel 01 away from the backlight side. The light provided by the backlight 09 first passes through the display panel 01 and then passes through the first dimming layer 02. If the process conditions permit, the first dimming layer 02 can also be located inside the display panel 01. This embodiment does not make a specific limitation on this. The first dimming layer 02 can be located on the light-emitting side of the backlight 09. By adjusting the voltage difference between the first electrode layer 06 and the second electrode layer 08 in the first dimming layer 02, the state of the first electrochromic layer 07 can be changed. When it is necessary to share the display content of the display panel 01 with others, the voltage difference between the first electrode layer 06 and the second electrode layer 08 is controlled to be the first voltage difference. At this time, the first electrochromic layer 07 is in a transparent state and will not be affected. The light emitted by the backlight 09 or the display panel 01 is blocked, and the display module 100 is in a wide viewing angle state, and the display content of the display panel 01 can be seen even at a wide viewing angle; when the display content of the display panel 01 is private information or content that needs to be kept confidential, the voltage difference between the first electrode layer 06 and the second electrode layer 08 is adjusted to a second voltage difference, and the first electrochromic layer 07 is in a dark state at this time. Since the first electrochromic layer 07 is only located above the first convex strip 05, that is, a dark-state blocking wall is formed at the corresponding position of the first convex strip 05, when the light emitted by the backlight 09 or the display panel 01 is emitted from the gap between adjacent first electrochromic layers 07, the dark-state blocking wall will block part of the large-angle light, so only small-angle light is emitted from the first dimming layer 02, and the display module 100 is in a narrow viewing angle state to achieve anti-peeping.

[0057] In some optional embodiments, referring to Figure 6 , Figure 7 and Figure 8 , Figure 6 This is another top view of the display module provided by the present invention. Figure 7 yes Figure 6 A cross-sectional view along the C-C' direction, Figure 8 yes Figure 6 In a cross-sectional view along the D-D′ direction, the first convex strip portion 04 further includes a plurality of second convex strips 19 extending along the third direction Z and arranged along the second direction Y, with a second interval between adjacent second convex strips 19 ; the first portion 061 also covers the second convex strips 19 .

[0058] It should be noted that for the sake of convenience, Figure 6 The display panel 01 is not shown in FIG. Figure 6Only the first convex stripe portion 04 is schematically shown to include a first convex stripe 05 extending along the second direction Y and arranged in the third direction Z, and also includes a second convex stripe 19 extending along the third direction Z and arranged in the second direction Y. The first convex stripe 05 and the second convex stripe 19 intersect to form a grid-like first convex stripe portion 04. Along the first direction X, the overlapping position of the first interval and the second interval is the first area S, that is, each hollow area in the grid-like three-dimensional first convex stripe portion 04 is the first area S. The first electrochromic layer 07 is in a transparent state or a dark state, and light can be emitted from the first area S.

[0059] It can be understood that the first part 061 covers the first ridge 05 and the second ridge 19, and the first electrochromic layer 07 covers the first part 061. When there is a second voltage difference between the first part 061 and the second electrode layer 08, the first electrochromic layer 07 is in a dark state, and light can only be emitted from the first area S. For the first area S, the first ridge 05 blocks part of the large-angle light in the third direction Z, and the second ridge 19 blocks part of the large-angle light in the second direction Y. Therefore, the first dimming layer 02 can achieve four-sided peeping protection.

[0060] In some optional embodiments, referring to Figure 1 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 , Fig. 9 yes Figure 1 Another cross-sectional view along the A-A' direction, Fig.10 This is another top view of the display module provided by the present invention. Fig.11 yes Fig.10 A cross-sectional view along the E-E' direction, Fig.12 yes Fig.10 A cross-sectional view taken along the F-F' line, the display module 100 provided in this embodiment further includes a second dimming layer 20:

[0061] The second dimming layer 20 is located on a side of the first dimming layer 02 close to the display panel 01;

[0062] Alternatively, the second dimming layer 20 is located on a side of the first dimming layer 02 away from the display panel 01;

[0063] Alternatively, the display panel 01 is located between the first dimming layer 02 and the second dimming layer 20 .

[0064] It should be noted that in Fig. 9 In the figure, only the first dimming layer 02 and the second dimming layer 20 are shown to be located between the display panel 01 and the backlight 09. Fig. 9It is shown in the figure that the second dimming layer 20 is located on the side of the first dimming layer 02 away from the display panel 01, that is, along the first direction X, the display panel 01, the first dimming layer 02, the second dimming layer 20 and the backlight 09 are stacked in sequence. Of course, the second dimming layer 20 can also be located on the side of the first dimming layer 02 close to the display panel 01, that is, along the first direction X, the display panel 01, the second dimming layer 20, the first dimming layer 02 and the backlight 09 are stacked in sequence; Fig.11 It is only shown that the display panel 01 is located between the first dimming layer 02 and the second dimming layer 20. Specifically, along the first direction X, the second dimming layer 20, the display panel 01, the first dimming layer 02 and the backlight 09 are stacked in sequence. Of course, it is not limited to this. The first dimming layer 02, the display panel 01, the second dimming layer 20 and the backlight 09 can also be arranged in sequence along the first direction X.

[0065] It can be understood that the first dimming layer 02 includes a first convex strip 05 extending along the second direction Y and arranged in the third direction Z, and the second dimming layer 20 includes a third convex strip 23 extending along the third direction Z and arranged in the second direction Y. In the anti-peeping state of the display module 100, the first electrochromic layer 07 in the first dimming layer 02 can be controlled to be in a dark state, part of the large-viewing angle light directed to the first electrochromic layer 07 is blocked, and the large-viewing angle brightness of the display module 100 along the third direction Z becomes dark, and the second electrochromic layer 25 in the second dimming layer 20 is in a transparent state, and the large-viewing angle brightness of the display module 100 along the second direction Y is not affected, so that the display module 100 along the third direction Z is realized. Anti-peeping in direction Z; or, controlling the first electrochromic layer 07 in the first dimming layer 02 to be in a transparent state, the wide viewing angle brightness of the display module 100 along the third direction Z is not affected, the second electrochromic layer 25 in the second dimming layer 20 is in a dark state, and the wide viewing angle brightness of the display module 100 along the second direction Y becomes dark, thereby realizing the anti-peeping of the display module 100 along the second direction Y; or controlling the first electrochromic layer 07 in the first dimming layer 02 and the second electrochromic layer 25 in the second dimming layer 20 to be in a dark state, and the wide viewing angle brightness of the display module 100 along the second direction Y and the third direction Z becomes dark, thereby realizing the anti-peeping of the display module 100 on all four sides.

[0066] In some optional embodiments, continue to refer to Figure 1 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 The second dimming layer 20 includes a second substrate 21 and a second convex stripe portion 22 protruding from the second substrate 21 along the first direction X, the second convex stripe portion 22 is located on a side of the second substrate 21 close to the light emitting surface of the display module 100, and the second convex stripe portion 22 includes a plurality of third convex stripes 23 extending along the third direction Z and arranged in the second direction Y, and a third interval is formed between adjacent third convex stripes 23;

[0067] The third electrode layer 24 includes a second portion 241 , and the second portion 241 covers the third convex strip 23 ;

[0068] The second electrochromic layer 25 covers the second portion 241 . Along the first direction X, the minimum distance between the second electrochromic layer 25 and the second substrate 21 is P3 , and the maximum distance between the second portion 241 and the second substrate 21 is P4 , where P3<P4;

[0069] The fourth electrode layer 26 is located on a side of the second electrochromic layer 25 away from the third electrode layer 24 .

[0070] It should be noted that the material of the second convex strip 22 is an organic resin, and the material of the third electrode layer 24 and the fourth electrode layer 26 is indium tin oxide (ITO), that is, the second convex strip 22, the third electrode layer 24 and the fourth electrode layer 26 are all transparent, and light can be emitted through the second convex strip 22, the third electrode layer 24 and the fourth electrode layer 26. The material of the second electrochromic layer 25 can be the same as the material of the first electrochromic layer 07 or different, and this embodiment does not impose any specific restrictions on this.

[0071] It can be understood that the working principle of the second dimming layer 20 is the same as that of the first dimming layer 20. When there is a third voltage difference between the third electrode layer 24 and the fourth electrode layer 26, the second dimming layer 20 is in a transparent state, and the second dimming layer 20 does not block the light emitted to the second dimming layer 20. When there is a fourth voltage difference between the third electrode layer 24 and the fourth electrode layer 26, the second dimming layer 20 is in a dark state, and the light emitted to the second dimming layer 20 can only be emitted from the third interval. Since the second portion 241 covers the third convex strip 23 along the shape of the third convex strip 23, the third dimming layer 20 is transparent. The second electrochromic layer 25 covers the second portion 241 along the shape of the second portion 241, so the second electrochromic layer 25 is a dark-state retaining wall structure, and part of the large-angle light emitted from the third interval to the second electrochromic layer 25 is blocked, and the large-angle brightness of the display module 100 along the second direction Y becomes darker, thereby realizing anti-peeping in the second direction Y. The state of the second electrochromic layer 25 can be changed by adjusting the voltage difference between the third electrode layer 24 and the fourth electrode layer 26, thereby realizing the switching of the display module 100 in the second direction Y between the shared state and the anti-peeping state.

[0072] In some optional embodiments, continue to refer to Figure 1 , Figure 2 and Figure 6 The first electrode layer 06 further includes a third portion 062, the third portion 062 is integrated with the first portion 061, and the third portion 062 covers the first interval;

[0073] The insulating portion 28 is located between the first electrode layer 06 and the second electrode layer 08 . The insulating portion 28 is in the same layer as the first electrochromic layer 07 . The insulating portion 28 covers the third portion 062 .

[0074] It can be understood that in order to prevent the insulating part 28 from affecting the transmission of light, the insulating part 28 is made of transparent material, the third part 062 covers the first interval, and the third part 062 and the first part 061 are integrated, that is, the first electrode layer 06 is set as a whole layer, the first electrochromic layer 07 covers the first part 061, and the first part 061 covers the first convex strip 05, that is, the first electrochromic layer 07 is located between the first part 061 and the second electrode layer 08; if the second electrode layer 08 is also set as a whole layer, the third part 062 may directly contact the second electrode layer 08 at the corresponding position of the first interval, so the insulating part 28 is set to cover the third part 062 to prevent the first electrode layer 06 from directly contacting the second electrode layer 08. When the first dimming layer 02 includes the first convex strip 05 and the second convex strip 19, the third part 062 covers the first area S to prevent the first electrode layer 06 from directly contacting the second electrode layer 08 at the corresponding position of the first area S.

[0075] Similarly, the third electrode layer 24 in the second dimming layer 20 includes a fourth portion 242, which is integrated with the second portion 241, and the fourth portion 242 covers the third interval; the side of the fourth portion 242 away from the second substrate 21 can also be covered with the insulating portion 28 to prevent the third electrode layer 24 from directly contacting the fourth electrode layer 26.

[0076] In some optional embodiments, continue to refer to Figure 1 , Figure 2 and Figure 3 , in the wide viewing angle state, the first electrode layer 06 and the second electrode layer 08 have a first voltage difference, and the first electrochromic layer 07 is in a transparent state;

[0077] In the narrow viewing angle state, the first electrode layer 06 and the second electrode layer 08 have a second voltage difference, and the first electrochromic layer 07 is in a dark state.

[0078] It can be understood that the first electrode layer 06 and the second electrode layer 08 have a first voltage difference, the first electrochromic layer 07 is in a transparent state, and the transparent first electrochromic layer 07 will not block light. At this time, the display module 100 is in a wide viewing angle state; when the first electrode layer 06 and the second electrode layer 08 have a second voltage difference, the first electrochromic layer 07 is in a dark state. Since the first electrochromic layer 07 in the dark state only covers the first part 061 and the first part 061 covers the first convex strip part 04, the light emitted to the first dimming layer 02 can be emitted from the gap between adjacent first electrochromic layers 07. The first part 061 covers the first convex strip part 04 and has a convex morphology, so the first electrochromic layer 07 covering the first part 061 also has a convex morphology. The first electrochromic layer 07 in the dark state blocks part of the large-angle light emitted from the gap between adjacent first electrochromic layers 07, and the display module 100 is in a narrow viewing angle state to achieve anti-peeping.

[0079] Similarly, if the display module 100 includes the second dimming layer 20, in the wide viewing angle mode, the third electrode layer 24 and the fourth electrode layer 26 have a third voltage difference, and the second electrochromic layer 25 is in a transparent state; in the narrow viewing angle state, the third electrode layer 24 and the fourth electrode layer 26 have a fourth voltage difference, and the second electrochromic layer 25 is in a dark state. In the wide viewing angle state, the first electrochromic layer 07 and the second electrode color-changing layer are both in a transparent state. If the materials of the first electrochromic layer 07 and the second electrochromic layer 25 are the same, the first voltage difference is equal to the third voltage difference; in the narrow viewing angle mode, the first electrochromic layer 07 is in a dark state, or the second electrochromic layer 25 is in a dark state, or the first electrochromic layer 07 and the second electrochromic layer 25 are both in a dark state. If the materials of the first electrochromic layer 07 and the second electrochromic layer 25 are the same, the second voltage difference is equal to the fourth voltage difference.

[0080] In some optional embodiments, continue to refer to Figure 1 and Figure 2 The material of the first electrochromic layer 07 is one of tungsten trioxide, molybdenum trioxide and iridium dioxide.

[0081] It can be understood that, in the wide viewing angle state, the first electrochromic layer 07 needs to be in a transparent state so as not to block the light, and in the narrow viewing angle state, the first electrochromic layer 07 needs to be in a dark state, that is, the first electrochromic layer 07 is in a nearly black state to block part of the large-angle light to achieve anti-peeping. The oxidized state of tungsten trioxide is transparent, and the reduced state is dark blue; the oxidized state of molybdenum trioxide is transparent, and the reduced state is dark blue; the oxidized state of iridium dioxide is blue-black, and the reduced state is transparent. Therefore, the material of the first electrochromic layer 07 can be selected from one of tungsten trioxide, molybdenum trioxide and iridium dioxide. Similarly, the material of the second electrochromic layer 25 can also be one of tungsten trioxide, molybdenum trioxide and iridium dioxide. Of course, the materials of the first electrochromic layer 07 and the second electrochromic layer 25 can be adjusted according to actual needs, and this embodiment does not impose specific restrictions on this.

[0082] In some optional embodiments, continue to refer to Figure 1 and Figure 3 Along the third direction Z, the minimum interval between adjacent first electrochromic layers 07 is D, and along the first direction X, the maximum thickness of the first electrochromic layer 07 is H, H>D.

[0083] It can be understood that a protective layer 27 is provided on the side of the second electrode layer 08 away from the first electrode layer 06, and the refractive index of the protective layer 27 is greater than the refractive index of the air. Therefore, the medium light speed of the protective layer 27 is less than the medium light speed of the air. When the light is emitted from the first interval, it will be refracted at the junction of the protective layer 27 and the air. According to the law of refraction, at this time, the refraction angle α is greater than the incident angle β. In the narrow viewing angle state, the anti-peeping angle is generally set to 45° to 135°, so the refraction angle α is 45°, and the incident angle β is less than 45°, that is, H>D. Of course, the relationship between H and D can also be adjusted according to the requirements of the anti-peeping angle or according to the refractive index of the protective layer 27 and the air. This embodiment does not impose specific restrictions on this.

[0084] In some optional embodiments, continue to refer to Figure 1 and Figure 3 , 10um≤D≤100um.

[0085] It is understandable that if D is less than 10um, the diffraction effect of the first electrochromic layer 07 in the dark state is more obvious and the display effect is reduced; if D is greater than 100um, the height of the first electrochromic layer 07 also needs to be higher, which is more difficult to achieve in terms of technology. Therefore, 10um≤D≤100um is set as the optimal range, but it is not limited to this.

[0086] In some optional embodiments, referring to Figure 4 , Fig.10 and Fig.13 , Fig.13This is another top view of the display module provided by the present invention. The display panel 01 includes a first edge 28 and a second edge 29 arranged opposite to each other along a fourth direction U. The angle between the fourth direction U and the second direction Y is θ, -20°≤θ≤20°.

[0087] It is understandable that in Figure 4 Only the fourth direction U coincides with the second direction Y. Fig.13 It is only indicated that there is an angle θ between the fourth direction U and the second direction Y. The preferred range of the angle between the fourth direction U and the second direction Y is -20°≤θ≤20°. If θ>20° or θ<-20°, the anti-peeping angle will be affected, and the anti-peeping angle of the first dimming layer 02 deviates from the third direction Z.

[0088] Similarly, refer to Fig.10 The display panel 01 includes a third edge 30 and a fourth edge 31 arranged opposite to each other along a fifth direction V, and an angle between the fifth direction V and the third direction Z is γ, wherein -20°≤γ≤20°.

[0089] In some optional embodiments, continue to refer to Figure 1 and Figure 2 The first dimming layer 02 further includes a protective layer 27 , and the protective layer 27 is located on a side of the second electrode layer 08 away from the first substrate 03 .

[0090] It can be understood that the material of the protective layer 27 is an organic material, and the protective layer 27 not only protects the second electrode layer 08 but also can flatten the uneven surface of the second electrode layer 08 .

[0091] In some optional embodiments, continue to refer to Figure 1 and Figure 2 , taking a cross section along the first direction X, the cross section extends along the third direction Z, and the shape of the first convex strip 05 in the cross section is a rectangle, a trapezoid or a triangle.

[0092] It is understandable that in Figure 2In the figure, only the first convex strip 05 is shown to have a trapezoidal shape in the cross section, the first part 061 is shown to have a trapezoidal shape in the cross section, the first part 061 is concave on the side close to the first substrate 03, and is engaged with the first convex strip 05, the first electrochromic layer 07 is also shown to have a trapezoidal shape in the cross section, the first electrochromic layer 07 is concave on the side close to the first substrate 03, and is engaged with the first part 061, but it is not limited thereto, and the first part 061 can also be shown to have a rectangular shape in the cross section, the first part 061 is concave on the side close to the first substrate 03, and is engaged with the first convex strip 05, the first electrochromic layer 07 is also shown to have a trapezoidal shape in the cross section, the first electrochromic layer 07 is shown to have a rectangular shape in the cross section, the first part 061 ... The cross-sectional shape of an electrochromic layer 07 is also rectangular. The first electrochromic layer 07 is recessed on one side close to the first substrate 03 and engages with the first portion 061. Of course, the cross-sectional shape of the first ridge 05 may be rectangular, triangular or semi-elliptical. This embodiment is not specific. The cross-sectional shape of the first ridge 05 may be a columnar structure with a certain height, so that the first portion 061 and the first electrochromic layer 07 covering it along its contour also have a certain height, thereby achieving the goal of blocking part of the wide-angle light when the first electrochromic layer 07 is in a dark state.

[0093] It is understandable that, referring to Fig.14 and Fig.15 , Fig.14 is a flow chart of a method for manufacturing a display module provided by the present invention, Fig.15 is a process flow chart of manufacturing a first dimming layer provided by the present invention. The present invention provides a specific embodiment of a method for manufacturing a display module 100, including:

[0094] S101: providing a display panel 01;

[0095] S102: manufacturing a first dimming layer 02, including:

[0096] S1021: providing a first substrate 03;

[0097] S1022: forming a first convex strip portion 04 protruding from the first substrate 03 along a first direction X, wherein the first direction X is a thickness direction of the display panel 01; the first convex strip portion 04 includes a plurality of first convex strips 05 extending along a second direction Y and arranged along a third direction Z, with a first interval between adjacent first convex strips 05, and the first direction X, the second direction Y and the third direction Z intersecting respectively;

[0098] S1023: sputtering a first electrode layer 06 on a side of the first convex strip portion 04 away from the first substrate 03 , including a first portion 061 , wherein the first portion 061 covers the first convex strip 05 ;

[0099] S1024: forming a first electrochromic layer 07 on a side of the first electrode layer 06 away from the first substrate 03, the first electrochromic layer 07 covers the first portion 061, along the first direction X, the minimum distance between the first electrochromic layer 07 and the first substrate 03 is P1, the maximum distance between the first portion 061 and the first substrate 03 is P2, P1<P2;

[0100] S1025: sputtering a second electrode layer 08 on a side of the first electrochromic layer 07 away from the first substrate 03;

[0101] S103 : Laminating the display panel 01 and the first dimming layer 02 .

[0102] It is understandable that in step S1024, the first electrochromic layer 07 can be reasonably selected according to the material of the first electrochromic layer 07. For example, if the material of the first electrochromic layer 07 is tungsten trioxide, it can be made by magnetron sputtering, vacuum evaporation, sol or gel; if the material of the first electrochromic layer 07 is molybdenum trioxide, it can be made by magnetron sputtering or vacuum evaporation; if the material of the first electrochromic layer 07 is iridium dioxide, it can be made by anodization, but it is not limited to this. By manufacturing the first electrode layer 06, the first electrochromic layer 07 and the second electrode layer 08 layer by layer along the first direction X, the transparent state and the dark state of the first electrochromic layer 07 can be switched by changing the voltage difference between the first electrode layer 06 and the second electrode layer 08, so as to realize the conversion between the wide viewing angle state and the narrow viewing angle state of the display module 100, thereby realizing the switching between the shared state and the anti-peeping state of the display module 100.

[0103] In some optional embodiments, continue to refer to Figure 6 , Figure 7 , Figure 8 and Fig.14 The first convex strip portion 04 further includes a plurality of second convex strips 19 extending along the third direction Z and arranged along the second direction Y, with a second interval between adjacent second convex strips 19 ; the first portion 061 also covers the second convex strips 19 .

[0104] It can be understood that in step S1022, when the first convex strip portion 04 is produced, the first convex strip 05 extending along the second direction Y and arranged in the third direction Z and the second convex strip 19 extending along the third direction Z and arranged in the second direction Y are formed at the same time, the first portion 061 covers the first convex strip portion 04, and the first electrochromic layer 07 covers the first portion 061. In the narrow viewing angle state, the first convex strip 05 blocks part of the large-angle light in the third direction Z, and the second convex strip 19 blocks part of the large-angle light in the second direction Y, thereby achieving four-sided peeping protection.

[0105] In some optional embodiments, continue to refer to Fig.14 and Fig.16, Fig.16 This is a flow chart of manufacturing the second dimming layer provided by the present invention. Before the display panel 01 and the first dimming layer 02 are bonded together, the second dimming layer 20 is also manufactured, including:

[0106] S1026: providing a second substrate 21;

[0107] S1027: forming a second convex strip portion 22 protruding from the second substrate 21 along the first direction X, wherein the second convex strip portion 22 includes a plurality of third convex strips 23 extending along the third direction Z and arranged along the second direction Y, and a third interval is formed between adjacent third convex strips 23;

[0108] S1028: sputtering a third electrode layer 24 on a side of the second convex strip portion 22 away from the second substrate 21 , including a second portion 241 , wherein the second portion 241 covers the third convex strip 23 ;

[0109] S1029: forming a second electrochromic layer 25 on a side of the third electrode layer 24 away from the second substrate 21, the second electrochromic layer 25 covers the second portion 241, along the first direction X, the minimum distance between the second electrochromic layer 25 and the second substrate 21 is P3, the maximum distance between the second portion 241 and the second substrate 21 is P4, P3<P4;

[0110] S1030: sputtering a fourth electrode layer 26 on a side of the second electrochromic layer 25 away from the second substrate 21;

[0111] Step S103 includes laminating the display panel 01 , the first dimming layer 02 and the second dimming layer 20 .

[0112] It can be understood that the process flow of the second dimming layer 20 is similar to the process flow of the first dimming layer 02. The first dimming layer 02 includes a first convex strip 05 extending along the second direction Y and arranged in the third direction Z, which is used to achieve anti-peeping in the third direction Z under a narrow viewing angle; the second dimming layer 20 includes a third convex strip 23 extending along the third direction Z and arranged in the second direction Y, which is used to achieve anti-peeping in the second direction Y under a narrow viewing angle. The voltage difference between the first electrode layer 06 and the second electrode layer 08 and the voltage difference between the third electrode layer 24 and the fourth electrode layer 26 can be adjusted according to actual needs to achieve anti-peeping in the second direction Y, or anti-peeping in the third direction Z, or simultaneously achieve anti-peeping in the second direction Y and the third direction Z.

[0113] Reference Fig.17 , Fig.17 2 is a schematic diagram of a planar structure of a display device provided in an embodiment of the present invention. The display device 200 provided in this embodiment includes the display module 100 provided in the above embodiment of the present invention. Fig.17The embodiment only takes a mobile phone as an example to illustrate the display device 200. It can be understood that the display device 200 provided in the embodiment of the present invention can be a computer, a television, a car display device or other display device 200 with a display function, and the present invention does not specifically limit this. The display device 200 provided in the embodiment of the present invention has the beneficial effects of the display module 100 provided in the embodiment of the present invention. For details, please refer to the specific description of the display module 100 in the above embodiments, and this embodiment will not be repeated here.

[0114] It can be seen from the above embodiments that the display module provided by the present invention achieves at least the following beneficial effects:

[0115] The display module provided by the present invention includes a display panel; a first dimming layer, located on one side of the display panel, including a first substrate and a first convex stripe portion protruding from the first substrate along a first direction, the first convex stripe portion is located on a side of the first substrate close to a light-emitting surface of the display module, and the first direction is the thickness direction of the display panel; the first convex stripe portion includes a plurality of first convex stripes extending along a second direction and arranged along a third direction, a first interval is provided between adjacent first convex stripes, and the first direction, the second direction and the third direction intersect respectively; a first electrode layer, including a first portion, the first portion covers the first convex stripe; a first electrochromic layer, covering the first portion, along the first direction, the minimum distance from the first electrochromic layer to the first substrate is P1, the maximum distance from the first portion to the first substrate is P2, and P1<P2; ​​a second electrode layer, located on a side of the first electrochromic layer away from the first electrode layer. Along the first direction, the first electrochromic layer is located between the first part and the second electrode layer, and the first part wraps the outer surface of the first convex strip. When there is a first voltage difference between the first electrode layer and the second electrode layer, the first electrochromic layer is in a transparent state, and the first electrochromic layer will not block light at any angle. At this time, the display panel is in a wide viewing angle state; when there is a second voltage difference between the first electrode layer and the second electrode layer, the first electrochromic layer is in a dark state, and the light passing through the first convex strip and the first part will be blocked by the dark first electrochromic layer and cannot be emitted. The light can only be emitted from the gap between adjacent first electrochromic layers. For this part of the light, the first convex strips on both sides of the first interval are above the dark first electrochromic layer, which will block the emission of part of the large-angle light, thereby realizing anti-peeping under a wide viewing angle. At this time, the display panel is in a narrow viewing angle state. By changing the voltage difference between the first electrode layer and the second electrode layer, the transparent state and the dark state of the first electrochromic layer are switched, and the conversion of the wide viewing angle state and the narrow viewing angle state of the display module is realized, thereby realizing the switching of the shared state and the anti-peeping state of the display module.

[0116] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A display module, characterized in that: include: Display panel; A first dimming layer is located on one side of the display panel, and includes a first substrate and a first convex stripe portion protruding from the first substrate along a first direction, wherein the first convex stripe portion is located on a side of the first substrate close to a light emitting surface of the display module, and the first direction is a thickness direction of the display panel; the first convex stripe portion includes a plurality of first convex stripes extending along a second direction and arranged along a third direction, and a first interval is provided between adjacent first convex stripes, and the first direction, the second direction and the third direction intersect each other; The first electrode layer comprises a first portion, a third portion and an insulating portion, wherein the first portion covers the first convex strip, the third portion is integrated with the first portion, the third portion covers the first interval, the insulating portion is in the same layer as the first electrochromic layer, and the insulating portion covers the third portion; A first electrochromic layer covers the first portion, wherein along the first direction, a minimum distance between the first electrochromic layer and the first substrate is P1, a maximum distance between the first portion and the first substrate is P2, and P1<P2; The second electrode layer is located at a side of the first electrochromic layer away from the first electrode layer, and the third portion is located between the first electrode layer and the second electrode layer.

2. The display module according to claim 1, characterized in that: The first dimming layer is located on the light emitting side of the display panel, or the first dimming layer is located on the backlight side of the display panel.

3. The display module according to claim 1, characterized in that: The first convex strip portion further includes a plurality of second convex strips extending along the third direction and arranged along the second direction, and a second interval is formed between adjacent second convex strips; The first portion also covers the second convex strip.

4. The display module according to claim 1, characterized in that: Also includes a second dimming layer: The second dimming layer is located on a side of the first dimming layer close to the display panel; Alternatively, the second dimming layer is located on a side of the first dimming layer away from the display panel; Alternatively, the display panel is located between the first dimming layer and the second dimming layer.

5. The display module according to claim 4, characterized in that: The second dimming layer includes a second substrate and a second convex stripe portion protruding from the second substrate along the first direction, the second convex stripe portion is located on a side of the second substrate close to the light emitting surface of the display module, the second convex stripe portion includes a plurality of third convex stripes extending along the third direction and arranged in the second direction, and a third interval is formed between adjacent third convex stripes; A third electrode layer includes a second portion, wherein the second portion covers the third convex strip; a second electrochromic layer, covering the second portion, wherein along the first direction, a minimum distance between the second electrochromic layer and the second substrate is P3, a maximum distance between the second portion and the second substrate is P4, and P3<P4; The fourth electrode layer is located on a side of the second electrochromic layer away from the third electrode layer.

6. The display module according to claim 1, characterized in that: In a wide viewing angle state, the first electrode layer and the second electrode layer have a first voltage difference, and the first electrochromic layer is in a transparent state; In a narrow viewing angle state, the first electrode layer and the second electrode layer have a second voltage difference, and the first electrochromic layer is in a dark state.

7. The display module according to claim 1, characterized in that: The material of the first electrochromic layer is one of tungsten trioxide, molybdenum trioxide and iridium dioxide.

8. The display module according to claim 1, characterized in that: Along the third direction, a minimum interval between adjacent first electrochromic layers is D, and along the first direction, a maximum thickness of the first electrochromic layer is H, where H>D.

9. The display module according to claim 8, characterized in that: 10um≤D≤100um.

10. The display module according to claim 1, characterized in that: The display panel includes a first edge and a second edge disposed opposite to each other along a fourth direction, and an angle between the fourth direction and the second direction is θ, wherein -20°≤θ≤20°.

11. The display module according to claim 1, characterized in that: The first dimming layer further includes a protective layer, and the protective layer is located on a side of the second electrode layer away from the first substrate.

12. The display module according to claim 1, characterized in that: Take a cross section along the first direction, the cross section extends along the third direction, and the shape of the first convex strip in the cross section is a rectangle, a trapezoid or a triangle.

13. A method for manufacturing a display module, characterized in that: include: providing a display panel; Produce the first dimming layer, including: providing a first substrate; A first convex strip portion is formed by protruding from the first substrate along a first direction, wherein the first direction is the thickness direction of the display panel; the first convex strip portion includes a plurality of first convex strips extending along a second direction and arranged along a third direction, with a first interval between adjacent first convex strips, and the first direction, the second direction and the third direction intersect each other; A first electrode layer is sputtered on a side of the first convex strip away from the first substrate, the first electrode layer includes a first portion, a third portion and an insulating portion, the first portion covers the first convex strip, the third portion is integrated with the first portion, the third portion covers the first interval, the insulating portion is in the same layer as the first electrochromic layer, and the insulating portion covers the third portion; A first electrochromic layer is formed on a side of the first electrode layer away from the first substrate, the first electrochromic layer covers the first portion, and along the first direction, the minimum distance from the first electrochromic layer to the first substrate is P1, the maximum distance from the first portion to the first substrate is P2, and P1<P2; sputtering a second electrode layer on a side of the first electrochromic layer away from the first substrate, wherein the third portion is located between the first electrode layer and the second electrode layer; The display panel is laminated to the first dimming layer.

14. The method for manufacturing a display module according to claim 13, characterized in that: Also includes: The first convex strip portion further includes a plurality of second convex strips extending along the third direction and arranged along the second direction, and a second interval is formed between adjacent second convex strips; The first portion also covers the second convex strip.

15. The method for manufacturing a display module according to claim 13, characterized in that: Before laminating the display panel to the first dimming layer, a second dimming layer is also manufactured, including: providing a second substrate; A second convex strip portion is formed by protruding from the second base along the first direction, wherein the second convex strip portion includes a plurality of third convex strips extending along the third direction and arranged along the second direction, and a third interval is formed between adjacent third convex strips; sputtering a third electrode layer on a side of the second convex strip away from the second substrate, the third electrode layer comprising a second portion, wherein the second portion covers the third convex strip; A second electrochromic layer is formed on a side of the third electrode layer away from the second substrate, the second electrochromic layer covers the second portion, and along the first direction, the minimum distance from the second electrochromic layer to the second substrate is P3, the maximum distance from the second portion to the second substrate is P4, and P3<P4; sputtering a fourth electrode layer on a side of the second electrochromic layer away from the second substrate; The display panel, the first dimming layer and the second dimming layer are laminated together.

16. A display device, characterized in that: A display module comprising any one of claims 1 to 12.

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