A printed electrochromic grating
By using a double-layer grating structure and electrode-controlled coloring or fading technology, the problem of manual operation required for grating animation has been solved, achieving automatic playback and uniform display of grating animation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- MYS GRP CO LTD
- Filing Date
- 2023-09-26
- Publication Date
- 2026-05-12
AI Technical Summary
Raster animation requires manual movement of the raster to see the effect, which is inconvenient and may result in white space and light leakage.
A double-layer grating structure is adopted, and the coloring or fading of the grating layer is controlled by electrodes to achieve periodic movement, ensuring uniform coloring of the entire grating area and avoiding blanking and light leakage.
It frees up manpower, increases the convenience of raster animation, and improves the display effect, enabling raster animation to play continuously without relying on manual operation.
Smart Images
Figure CN117111372B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of printing technology, and in particular to a printed electrochromic grating. Background Technology
[0002] Raster animation is a type of animation that uses transparent raster graphics to move rapidly across a film, making the film appear to be in motion. This type of animation does not rely on electronic media or GIFs; it only requires a pre-prepared film and a raster pattern printed on a transparent plastic sheet to create the effect of a moving image. The principle behind raster animation is to utilize the effects of visual persistence and moiré fringes. An animation is broken down into multiple frames, and the image of each frame is then divided and processed using a grid, so that each grid displays only the content of one frame. All the frames are then overlaid to obtain a base image, and a raster with regularly spaced stripes is then slid across this base image, sequentially displaying different frame graphics to form the animation.
[0003] The advantages of raster animation are its simple structure, low production cost, and ability to be viewed without power or other equipment, while also possessing a certain degree of artistry and entertainment value. However, raster animation can only produce simple animations and requires manual movement of the raster to see the effect. Summary of the Invention
[0004] This invention provides a printed electrochromic grating that achieves periodic movement by driving the grating to color or fade through electrodes.
[0005] In a first aspect, embodiments of the present invention provide a printed electrochromic grating, comprising a first grating layer and a second grating layer arranged overlapping in a first direction; both the first grating layer and the second grating layer include a plurality of gratings arranged in parallel and at equal intervals in the second direction; the gratings have the same width; the first direction is the thickness direction of the grating; the second direction intersects with the first direction;
[0006] At any point during the driving process, the gratings in the first grating layer and the second grating layer are configured to be colored or faded under electrode control to form a plurality of first grating groups and a plurality of second grating groups, which are arranged alternately; wherein, the gratings in the first grating group are colored, and the gratings in the second grating group are faded.
[0007] The first grating group includes M gratings that are adjacent in the first direction and whose projections overlap sequentially; the second grating group includes N gratings that are adjacent in the first direction and whose projections overlap sequentially; wherein M and N are both positive integers greater than or equal to 2.
[0008] During the driving process, the distance L of the first grating group misaligned in the second direction at two adjacent moments satisfies: D1≤L≤D2; where D1 is the width of one of the gratings in the second direction, and D2 is the width of one of the first grating groups in the second direction.
[0009] Optionally, the first grating layer includes a first substrate layer, a first conductive layer, a first electrolyte layer, a first electrochromic layer, a second conductive layer, and a second substrate layer arranged sequentially in the first direction; the first grating layer includes a plurality of first grating regions arranged in parallel and at equal intervals in the second direction;
[0010] The first conductive layer has a first strip electrode in the first grating region; the first electrolyte layer has an electrolyte material in the first grating region; the first electrochromic layer has an electrochromic material in the first grating region; and the second conductive layer has a second strip electrode in the first grating region.
[0011] In the first direction, the first strip electrode, the electrolyte material, the electrochromic material, and the second strip electrode constitute the grating in the first grating layer;
[0012] The second grating layer includes a third substrate layer, a third conductive layer, a second electrochromic layer, a second electrolyte layer, a fourth conductive layer, and a fourth substrate layer arranged sequentially in the first direction; the second electrochromic layer includes a plurality of gratings arranged in parallel and at equal intervals in the second direction; the second grating layer includes a plurality of second grating regions arranged in parallel and at equal intervals in the second direction.
[0013] The third conductive layer has a third strip electrode in the second grating region; the second electrolyte layer is filled with electrolyte material in the second grating region; the second electrochromic layer is filled with electrochromic material in the second grating region; and the fourth conductive layer has a fourth strip electrode in the second grating region.
[0014] In the first direction, the third strip electrode, the electrolyte material, the electrochromic material, and the fourth strip electrode constitute the grating in the second grating layer;
[0015] The electrochromic material in the first electrochromic layer is configured to color or fade under the control of the electric field formed by the first conductive layer and the second conductive layer; the electrochromic material in the second electrochromic layer is configured to color or fade under the control of the electric field formed by the third conductive layer and the fourth conductive layer.
[0016] Optionally, the second substrate layer can be reused as the third substrate layer.
[0017] Optionally, the gap between two adjacent gratings in the first grating layer and the gap between two adjacent gratings in the grating layer are both one grating width; and the projection of the grating in the second grating layer in the first direction overlaps with the gap between two adjacent gratings in the first grating layer.
[0018] Optionally, it also includes a barrier wall, which is disposed between two adjacent gratings in the same grating layer.
[0019] Optionally, the substrate layer is made of PET or glass.
[0020] Optionally, the electrolyte layer is made of a gel electrolyte.
[0021] Optionally, the electrochromic layer is made of PEDOT:PSS.
[0022] Optionally, the conductive layer is made of ITO, silver nanowires, or a metal mesh.
[0023] Optionally, the barrier wall is made of transparent insulating ink.
[0024] This invention provides a printed electrochromic grating, comprising a first grating layer and a second grating layer overlapping in a first direction; each of the first and second grating layers includes a plurality of gratings arranged in parallel and equally spaced directions in a second direction; the gratings have the same width; the first direction is the thickness direction of the gratings; the second direction intersects the first direction; at any time during the driving process, the gratings in the first and second grating layers are configured to be colored or faded under electrode control to form a plurality of first grating groups and a plurality of second grating groups, the first grating groups and the second grating groups being arranged alternately. The first grating group contains gratings that are colored, while the second grating group contains gratings that are faded. The first grating group comprises M gratings that are adjacent in the first direction and whose projections overlap sequentially, and the second grating group comprises N gratings that are adjacent in the first direction and whose projections overlap sequentially. M and N are both positive integers greater than or equal to 2. During the driving process, the distance L of the first grating group misaligned in the second direction at two adjacent moments satisfies: D1≤L≤D2. D1 is the width of a grating in the second direction, and D2 is the width of a first grating group in the second direction. The technical solution of this embodiment of the invention achieves periodic movement by controlling the coloring or fading of gratings with electrodes, solving the inconvenience of manually pulling the gratings in grating animation, freeing up manpower, and increasing convenience. Simultaneously, the use of a double-layer grating ensures that all areas of the grating can be colored, preventing white space and light leakage, thus improving the display effect. Attached Figure Description
[0025] Figure 1 This is a top view of a printed electrochromic grating provided in an embodiment of the present invention;
[0026] Figure 2 This is a schematic cross-sectional view of a printed electrochromic grating provided in an embodiment of the present invention;
[0027] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of the printed electrochromic grating at the next moment.
[0028] Figure 4 This is a schematic cross-sectional view of another printed electrochromic grating provided in an embodiment of the present invention;
[0029] Figure 5 This is a cross-sectional structural schematic diagram of another printed electrochromic grating provided in an embodiment of the present invention. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.
[0031] Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but may also have additional steps not included in the figures. The process can correspond to a method, function, procedure, subroutine, subroutine, etc. Moreover, embodiments and features in the embodiments of the present invention can be combined with each other without conflict.
[0032] The term "comprising" and its variations as used in this invention are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment".
[0033] It should be noted that the concepts of "first" and "second" mentioned in this invention are only used to distinguish the corresponding contents and are not used to limit the order or interdependence.
[0034] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0035] Figure 1 This is a top view of a printed electrochromic grating provided in an embodiment of the present invention. Figure 2 This is a schematic cross-sectional view of a printed electrochromic grating provided in an embodiment of the present invention. (Refer to...) Figure 1 , Figure 2 The grating includes a first grating layer 10 and a second grating layer 20 overlapping in a first direction y; both the first grating layer 10 and the second grating layer 20 include a plurality of gratings 12 arranged parallel and equally spaced in a second direction x; the gratings 12 have the same width; the first direction y is the thickness direction of the printed electrochromic grating; the second direction x intersects the first direction y; at any time during the driving process, the gratings 12 in the first grating layer 10 and the second grating layer 20 are configured to be colored or faded under electrode control to form a plurality of first grating groups 30 and a plurality of second grating groups 40, the first grating groups 30 and the second grating groups 40 being arranged alternately. In the first grating group 30, the grating 12 is colored, and in the second grating group 40, the grating 12 is faded. The first grating group 30 includes M gratings 12 that are adjacent in the first direction y and whose projections overlap sequentially. The second grating group 40 includes N gratings 12 that are adjacent in the first direction and whose projections overlap sequentially. M and N are both positive integers greater than or equal to 2. During the driving process, the distance L of the first grating group 30 being misaligned in the second direction at two adjacent moments satisfies: D1≤L≤D2. D1 is the width of a grating in the second direction x, and D2 is the width of a first grating group 30 in the second direction x.
[0036] Specifically, in the process of creating lenticular animation, the first step in printing electrochromic lenticular sheets is to cover the animation film, as shown in the reference. Figure 2 , Figure 2 The arrangement of the first raster group 30 and the second raster group 40 at the current moment is as follows: since the first raster group 30 is in a colored state and the second raster group 40 is in a faded state, the colored first raster group 30 obscures part of the image on the film, while the human eye can see the image of the current frame through the faded second raster group 40. Figure 3 yes Figure 2 The schematic diagram of the cross-sectional structure of the printed electrochromic grating at the next moment is shown in the figure. (Refer to...) Figure 3 At the next moment, the gratings 12 in the first grating layer 10 and the second grating layer 20 are recolored or faded under the control of the electrodes, thereby forming Figure 2The raster group arrangement shown depicts the next frame's image emerging from the faded area of the second raster group 40. The human eye can see the next frame's image through the faded second raster group 40. The raster 12 has a uniform width, ensuring a consistent exposed area for each frame, resulting in a more uniform image display. Simultaneously, the use of a double-layer raster structure (first raster layer 10 and second raster layer 20) allows all areas of the raster to be colored, eliminating white space and ensuring optimal image display. Driven according to the aforementioned cycle, the first raster layer 10 and the second raster layer 20... The gratings 12 in the second grating layer 20 are continuously recolored or faded under the control of electrodes to continuously form new first grating groups 30 and second grating groups 40. The distance L of the first grating group 30 being misaligned in the second direction remains unchanged between two adjacent moments, so that the arrangement structure of the first grating group 30 and the second grating group 40 at the current moment moves uniformly in the second direction x. The faded second grating group 40 area uniformly exposes the next frame of the picture. The human brain fills in the continuously exposed frames into complete pictures, and the pictures are connected to form an animation.
[0037] This invention provides a printed electrochromic grating, comprising a first grating layer and a second grating layer overlapping in a first direction; each of the first and second grating layers includes a plurality of gratings arranged in parallel and equally spaced directions in a second direction; the gratings have the same width; the first direction is the thickness direction of the gratings; the second direction intersects the first direction; at any time during the driving process, the gratings in the first and second grating layers are configured to be colored or faded under electrode control to form a plurality of first grating groups and a plurality of second grating groups, the first grating groups and the second grating groups being arranged alternately. The first grating group contains gratings that are colored, while the second grating group contains gratings that are faded. The first grating group comprises M gratings that are adjacent in the first direction and whose projections overlap sequentially, and the second grating group comprises N gratings that are adjacent in the first direction and whose projections overlap sequentially. M and N are both positive integers greater than or equal to 2. During the driving process, the distance L of the first grating group misaligned in the second direction at two adjacent moments satisfies: D1≤L≤D2. D1 is the width of a grating in the second direction, and D2 is the width of a first grating group in the second direction. The technical solution of this embodiment of the invention achieves periodic movement by controlling the coloring or fading of gratings with electrodes, solving the inconvenience of manually pulling the gratings in grating animation, freeing up manpower, and increasing convenience. Simultaneously, the use of a double-layer grating ensures that all areas of the grating can be colored, preventing white space and light leakage, thus improving the display effect.
[0038] In an optional embodiment of the present invention, the gap between two adjacent gratings 12 in the first grating layer 10 and the gap between two adjacent gratings 12 in the second grating layer 20 are both one grating width; and the projection of the grating 12 in the second grating layer 20 in the first direction y overlaps with the gap between two adjacent gratings in the first grating layer 10.
[0039] For details, please refer to Figure 2 The gratings in the two grating layers, namely the first grating layer 10 and the second grating layer 20, have the same width. The projection of the grating 12 in the second grating layer 20 in the first direction y overlaps with the gap between two adjacent gratings 12 in the first grating layer 10. Therefore, the overlapping gratings 12 can be fully exposed through the gap. The gap will not be inconsistent due to different sizes, resulting in white space and light leakage, or the gratings will be too large and block the gap, thus blocking the gratings of the other grating layer and affecting the display effect of the image.
[0040] Figure 4 This is a schematic cross-sectional view of another printed electrochromic grating provided in an embodiment of the present invention, for reference. Figure 4 In this embodiment of the invention, the first grating layer 10 includes a first substrate layer 11, a first conductive layer 13, a first electrolyte layer 14, a first electrochromic layer 15, a second conductive layer 16, and a second substrate layer 17 arranged sequentially in a first direction; the first grating layer 10 includes a plurality of first grating regions 18 arranged parallel and equally spaced in a second direction x; the first conductive layer 13 has a first strip electrode 131 disposed in the first grating region 18; the first electrolyte layer 14 is filled with an electrolyte material in the first grating region 18; the first electrochromic layer 15 is filled with an electrochromic material in the first grating region 18; the second conductive layer 16 has a second strip electrode 161 disposed in the first grating region 18; in the first direction y, the first strip electrode 131, the electrolyte material, the electrochromic material, and the second strip electrode 161 constitute the grating in the first grating layer 10;
[0041] The second grating layer 20 includes a third substrate layer 21, a third conductive layer 22, a second electrochromic layer 23, a second electrolyte layer 24, a fourth conductive layer 25, and a fourth substrate layer 26 arranged sequentially in the first direction; wherein, the substrate layer is made of PET or glass, and the transparent material allows light to pass through; the second electrochromic layer 23 includes a plurality of gratings arranged parallel and equally spaced in the second direction x; the second grating layer 20 includes a plurality of second grating regions 27 arranged parallel and equally spaced in the second direction x; the third conductive layer 22 has a third strip electrode 221 disposed in the second grating region 27; the second electrolyte layer 24 fills the second grating region 27 with an electrolyte. Electrochromic material; the second electrochromic layer 23 is filled with electrochromic material in the second grating region 27; the fourth conductive layer 25 is provided with a fourth strip electrode 251 in the second grating region 27; in the first direction y, the third strip electrode 221, the electrolyte material, the electrochromic material and the fourth strip electrode 251 form a grating in the second grating layer 20; the electrochromic material in the first electrochromic layer is configured to be colored or faded under the control of the electric field formed by the first conductive layer and the second conductive layer; the electrochromic material in the second electrochromic layer is configured to be colored or faded under the control of the electric field formed by the third conductive layer and the fourth conductive layer.
[0042] For details, please refer to Figure 4 Each layer is filled with material only in the raster area, meaning the area outside the raster area is blank. In other words, the projections of the patterns in each layer overlap in the first direction y, forming a strip-shaped raster structure. In other embodiments of the invention, the entire layer can also be processed into parallel, equally spaced strip-shaped patterns using processes such as screen printing, inkjet printing, and mask coating.
[0043] The first grating layer 10 includes a first substrate layer 11, a first conductive layer 13, a first electrolyte layer 14, a first electrochromic layer 15, a second conductive layer 16, and a second substrate layer 17 arranged sequentially in a first direction. Exemplarily, the first conductive layer 13 and the second conductive layer 16 can form an electric field by providing different voltages through a driving circuit. The first electrolyte layer 14 provides color-changing ions to the first electrochromic layer 15. In an optional embodiment, the electrolyte layer is made of a gel electrolyte, causing the first electrochromic layer 15 to color or fade under the electric field formed by the first conductive layer 13 and the second conductive layer 16. In an optional embodiment of the present invention, the first electrochromic layer 15 is made of PEDOT:PSS. When the direction of the electric field is from the second conductive layer 16 to the first conductive layer 13, the first electrochromic layer 15 is in a colored state. The second grating layer 20 includes a third substrate layer 21, a third conductive layer 22, a second electrochromic layer 23, a second electrolyte layer 24, a fourth conductive layer 25, and a fourth substrate layer 26 arranged sequentially in a first direction. The third conductive layer 22 and the fourth conductive layer 25 can form an electric field by providing different voltages through a driving circuit. The second electrolyte layer 24 provides color-changing ions to the second electrochromic layer 23, so that the second electrochromic layer 23 is colored or faded under the electric field formed by the third conductive layer 22 and the fourth conductive layer 25. The conductive layer is made of ITO, silver nanowires, or a metal mesh.
[0044] It should be noted that, in addition to the driving circuit, other driving methods can also be used to drive the electrochromic grating. The present invention does not impose any special limitation on the driving method of the electrochromic layer, as long as the electrochromic layer can be driven so that the electrochromic material in the grating region changes color.
[0045] Figure 5 This is a cross-sectional structural schematic diagram of another printed electrochromic grating provided in an embodiment of the present invention, with reference to... Figure 5 The second substrate layer 17 is reused as the third substrate layer 21, that is, the side where the first grating layer 10 and the second grating layer 20 are in contact shares a substrate layer, which is more compact in the thickness direction, reduces the thickness and saves materials, making the grating structure lighter and thinner.
[0046] Optionally, refer to Figure 4 The printed electrochromic grating also includes a barrier wall 50, which is disposed between two adjacent gratings 12 in the same grating layer. This barrier wall separates the adjacent gratings 12, and its thickness is the sum of the thicknesses of other film layers in the grating layer. In one embodiment of the invention, the barrier wall 50 is made of transparent insulating ink, and the cured ink can also support the upper and lower substrates, improving the mechanical strength of the electrochromic grating.
[0047] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.
Claims
1. A printed electrochromic grating, characterized in that, The system includes a first grating layer and a second grating layer that overlap in a first direction; both the first grating layer and the second grating layer include multiple gratings arranged in parallel and equally spaced directions in a second direction; the gratings have the same width; the first direction is the thickness direction of the gratings; the second direction intersects with the first direction. At any point during the driving process, the gratings in the first grating layer and the second grating layer are configured to be colored or faded under electrode control to form a plurality of first grating groups and a plurality of second grating groups, which are arranged alternately; wherein, the gratings in the first grating group are colored, and the gratings in the second grating group are faded. The first grating group includes M gratings that are adjacent in the first direction and whose projections overlap sequentially; the second grating group includes N gratings that are adjacent in the first direction and whose projections overlap sequentially; wherein M and N are both positive integers greater than or equal to 2. During the driving process, the distance L of the first grating group misaligned in the second direction at two adjacent moments satisfies: D1≤L≤D2; where D1 is the width of one of the gratings in the second direction, and D2 is the width of one of the first grating groups in the second direction. The first grating layer includes a first substrate layer, a first conductive layer, a first electrolyte layer, a first electrochromic layer, a second conductive layer, and a second substrate layer arranged sequentially in a first direction; the first grating layer includes a plurality of first grating regions arranged in parallel and at equal intervals in the second direction; The first conductive layer has a first strip electrode in the first grating region; the first electrolyte layer has an electrolyte material in the first grating region; the first electrochromic layer has an electrochromic material in the first grating region; and the second conductive layer has a second strip electrode in the first grating region. In the first direction, the first strip electrode, the electrolyte material, the electrochromic material, and the second strip electrode constitute the grating in the first grating layer; The second grating layer includes a third substrate layer, a third conductive layer, a second electrochromic layer, a second electrolyte layer, a fourth conductive layer, and a fourth substrate layer arranged sequentially in the first direction; the second electrochromic layer includes a plurality of gratings arranged in parallel and at equal intervals in the second direction; the second grating layer includes a plurality of second grating regions arranged in parallel and at equal intervals in the second direction. The third conductive layer has a third strip electrode in the second grating region; the second electrolyte layer is filled with electrolyte material in the second grating region; the second electrochromic layer is filled with electrochromic material in the second grating region; and the fourth conductive layer has a fourth strip electrode in the second grating region. In the first direction, the third strip electrode, the electrolyte material, the electrochromic material, and the fourth strip electrode constitute the grating in the second grating layer.
2. The printed electrochromic grating according to claim 1, characterized in that, The electrochromic material in the first electrochromic layer is configured to color or fade under the control of the electric field formed by the first conductive layer and the second conductive layer; the electrochromic material in the second electrochromic layer is configured to color or fade under the control of the electric field formed by the third conductive layer and the fourth conductive layer.
3. The printed electrochromic grating according to claim 2, characterized in that, The second substrate layer is reused as the third substrate layer.
4. The printed electrochromic grating according to claim 1, characterized in that, The gap between two adjacent gratings in the first grating layer and the gap between two adjacent gratings in the second grating layer are both one grating width; and the projection of the grating in the second grating layer in the first direction overlaps with the gap between two adjacent gratings in the first grating layer.
5. The printed electrochromic grating according to claim 1, characterized in that, It also includes a barrier wall, which is disposed between two adjacent gratings in the same grating layer.
6. The printed electrochromic grating according to claim 2, characterized in that, The substrate layer is made of PET or glass.
7. The printed electrochromic grating according to claim 2, characterized in that, The electrolyte layer is made of gel electrolyte.
8. The printed electrochromic grating according to claim 2, characterized in that, The electrochromic layer is made of PEDOT:PSS.
9. The printed electrochromic grating according to claim 2, characterized in that, The conductive layer is made of ITO, silver nanowires, or a metal mesh.
10. The printed electrochromic grating according to claim 5, characterized in that, The barrier wall is made of transparent insulating ink.