Multi-color pattern cover plate
By employing a color mixing technique involving halftone ink layers and base color ink layers on multicolor patterned cover plates, the printing process is simplified, product yield is improved, and the complexity of multicolor patterned cover plate printing in existing technologies is solved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU VICTORY PRECISION MFG
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-31
AI Technical Summary
In the existing technology, the printing process of multi-color patterned covers is complicated, requiring multiple printings of different color blocks, resulting in low yield and difficulty in meeting mass production requirements.
At least one halftone ink layer and a base color ink layer are printed on a transparent substrate. By mixing the halftone ink dots with the base color ink layer, the printing process is simplified and multiple color effects can be achieved.
By simplifying the printing process, the product yield was improved, meeting the needs of mass production.
Smart Images
Figure CN224581957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display device technology, and in particular to a multi-color patterned cover plate. Background Technology
[0002] With the development of new energy vehicles, the cover plates have gradually become larger, and gradually, many characters, patterns and other displays on the car have been integrated into the cover plates.
[0003] In some designs, a backlight is placed behind the pattern. When the backlight is on, there are effects such as gradient light transmission and special pattern / character arrangements. In other designs, there is no backlight behind the pattern; the only requirement is to achieve certain colors and effects under reflective conditions.
[0004] A backlight is usually attached below the display area. The black ink layer mainly serves to block light, while the pattern mainly serves a decorative purpose. In some applications, different transmittance and color effects are required for the pattern area.
[0005] Current printing methods involve first cutting out the pattern area and then printing the corresponding ink. Typically, one layer of ink is needed for each color. If the pattern requires multiple colors to show through, different color blocks need to be printed multiple times to achieve the desired effect. This printing method is not only lengthy and involves many processes, leading to lower yield rates, but also requires numerous machines, making it difficult to meet mass production needs. Utility Model Content
[0006] The purpose of this invention is to provide a multi-color patterned cover plate that simplifies the printing process and improves product yield.
[0007] Based on the above problems, the technical solution provided by this utility model is as follows:
[0008] A multi-color patterned cover plate includes a transparent substrate, the transparent substrate including a display area and a border area disposed around the outer periphery of the display area, the border area being printed with a first black ink layer, the first black ink layer forming a hollow area, and further comprising:
[0009] At least one halftone ink layer is printed on the first black ink layer and covers the cut-out area. The halftone ink layer includes multiple ink dots, and the areas between adjacent ink dots are light-transmitting areas.
[0010] A base color ink layer, which is printed on the at least one halftone ink layer and covers the cut-out area, is used for color mixing with the halftone ink layer.
[0011] In some embodiments, a second black ink layer is also included, which is printed on the base color ink layer and covers the first black ink layer.
[0012] In some embodiments, the thickness of the first black ink layer is 5–7 μm, the thickness of the halftone ink layer is 3–5 μm, the thickness of the base color ink layer is 3–7 μm, and the thickness of the second black ink layer is 5–8 μm.
[0013] In some embodiments, the halftone ink layer extends 0.3 to 1 mm beyond the edge of the cutout area, and the base color ink layer extends 0 to 0.5 mm beyond the edge of the halftone ink layer.
[0014] In some embodiments, the second black ink layer extends 0.3 to 0.5 mm beyond the edge of the first black ink layer.
[0015] In some of these embodiments, the ink dots are circular, square, or elliptical.
[0016] In some of these embodiments, the transparent substrate is glass.
[0017] Compared with the prior art, the advantages of this utility model are:
[0018] By mixing at least one halftone ink layer and a base color ink layer, multiple colors can be obtained with fewer printing passes, simplifying the printing process and improving product yield. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a structural schematic diagram of an embodiment of a multi-color patterned cover plate according to the present invention;
[0021] Figure 2 This is one of the structural schematic diagrams of Embodiment 1 of this utility model;
[0022] Figure 3 This is a second structural schematic diagram of Embodiment 1 of the present utility model;
[0023] Figure 4 This is a schematic diagram of the screen plate structure in Embodiment 1 of this utility model;
[0024] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention;
[0025] Figure 6 This is a schematic diagram of the film structure in Embodiment 2 of this utility model;
[0026] Figure 7 This is one of the structural schematic diagrams of Embodiment 3 of this utility model;
[0027] Figure 8 This is a second structural schematic diagram of Embodiment 3 of the present invention;
[0028] Figure 9 This is a schematic diagram of the structure of the first film in Embodiment 3 of this utility model;
[0029] Figure 10 This is a schematic diagram of the structure of the second film in Embodiment 3 of this utility model;
[0030] Figure 11 This is a schematic diagram of the structure of the third film in Embodiment 3 of this utility model;
[0031] in:
[0032] 1. Transparent substrate;
[0033] 2. First black ink layer 2-1, cutout area;
[0034] 3. Dot ink layer 3-1, first dot ink layer 3-2, second dot ink layer;
[0035] 4. Base color ink layer;
[0036] 5. Second black ink layer;
[0037] 6-1, logo1 area film grayscale; 6-2, logo2 area film grayscale; 6-3, logo3 area film grayscale; 6-4, logo4 area film grayscale;
[0038] 7. First film;
[0039] 8. Second film;
[0040] 9. Third film;
[0041] a, logo1; b, logo2; c, logo3; d, logo4; e, first pattern; e1, normal area; e2, gradient area; f, second pattern; g, color intersection area; h, first color; i, second color; j, third color; k, fourth color. Detailed Implementation
[0042] The above solution will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrating the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.
[0043] like Figure 1 The diagram shown is a structural schematic of the present invention, which provides a multi-color patterned cover plate, including a transparent substrate 1. The transparent substrate 1 includes a display area and a border area disposed around the outer periphery of the display area. A first black ink layer 2 is printed on the border area, and a hollow area 2-1 is formed in the first black ink layer 2. The transparent substrate 1 may be made of glass.
[0044] To facilitate printing patterns of multiple colors in the cutout area 2-1, it also includes at least one halftone ink layer 3 printed on the first black ink layer 2 and a base color ink layer 4 printed on the at least one halftone ink layer 3.
[0045] A halftone ink layer 3 covers the cutout area 2-1 and includes multiple ink dots and a light-transmitting area between adjacent ink dots. A base color ink layer 4 covers the cutout area 2-1 for color mixing with the halftone ink layer 3. The density of the ink dots is adjusted by regulating the spacing between them. Therefore, when the halftone ink layer 3 and the base color ink layer 4 are superimposed and mixed, multiple colors can be obtained, thereby reducing the number of printing passes and simplifying the printing process. The ink dots can be circular, square, or elliptical, and the area of the ink dots ranges from 300 to 20000 μm. 2 .
[0046] To further optimize the implementation effect of this utility model and prevent light leakage in the first black ink layer 2, a second black ink layer 5 is also provided, which is printed on the base color ink layer 4 and covers the first black ink layer 2.
[0047] In this example, the thickness of the first black ink layer 2 is 5–7 μm, the thickness of the halftone ink layer 3 is 3–5 μm, the thickness of the base color ink layer 4 is 3–7 μm, and the thickness of the second black ink layer 5 is 5–8 μm.
[0048] To ensure that the halftone ink layer 3 and the base color ink layer 4 completely cover the cutout area 2-1, the halftone ink layer 3 extends 0.3 to 1 mm beyond the edge of the cutout area 2-1, and the base color ink layer 4 extends 0 to 0.5 mm beyond the edge of the halftone ink layer 3.
[0049] To reduce the risk of printing misalignment in the second black ink layer 5, the second black ink layer 5 is extended outward by 0.3 to 0.5 mm from the edge of the first black ink layer 2.
[0050] In this example, screen printing is used for printing. The specific method is as follows:
[0051] First, the production of film:
[0052] First, there's the color separation of the pattern. The halftone ink and background ink colors mentioned above are derived from the original image. Gray can be separated into a mixture of black and white, and chromatic colors can be separated into red, green, and blue. For example, yellow can be separated into green and red, and purple can be separated into red and blue. Furthermore, different proportions of red and green can create different shades of yellow.
[0053] Film parameters. During film creation, the pattern is first divided into a checkerboard pattern based on the number of lines. A higher line count results in a denser checkerboard and smaller spacing between the crosshairs. Then, based on the average grayscale value of the pattern within the checkerboard, black dots of varying radii are filled in. Lower grayscale values result in smaller black dot radii; higher grayscale values result in larger black dot radii. Grayscale refers to the grayscale value corresponding to different areas of the pattern when the image is converted to a grayscale image. Grayscale ranges from 0 to 100, with 0 representing white and 100 representing pure black.
[0054] The size of the black dots on the film is automatically calculated by the software; you only need to adjust the film line count when outputting the film.
[0055] The conversion relationships between film black points, grayscale, and line count are as follows, which is the existing technology:
[0056] The LPI line count controls the distance d between the centers: d = 25.4 * 1000 / LPI
[0057] The area S1 of the cube can then be calculated: S1 = d * d
[0058] Therefore, the area S2 of the circle can be calculated based on the gray level K: S2 = K * S1
[0059] The radius R of a circle can be calculated from its area: S² = πR 2
[0060] Film printing. First, patterns of different grayscale are processed by software. After processing, the patterns of different grayscale become black dot images of different diameters. Then, the black dot images are printed onto film using a film printer.
[0061] Second, the production of the web version:
[0062] Applying adhesive: Select a mesh size appropriate to attach to the frame, and then apply photosensitive adhesive to the entire surface.
[0063] Exposure: The patterned film is placed on an exposure machine to expose the photosensitive emulsion on the screen. During exposure, the black dots on the film block the light and prevent the photosensitive emulsion from curing. After exposure, the screen is rinsed with solvent to remove any unexposed photosensitive emulsion.
[0064] The unexposed areas mentioned above are called ink-absorbing areas, which can be inked normally during printing; the exposed areas mentioned above are called non-ink-absorbing areas, which cannot be inked during printing.
[0065] Because ink has fluidity, when halftone dots on the film are printed onto the product, the area usually increases by 10% to 30%, and the dot diameter increases by about 5% to 15%. Secondly, if the ink dispensing mesh of the screen is too small, there is a risk of screen clogging. Therefore, it is preferable that the grayscale of the film be ≥20.
[0066] Example 1
[0067] like Figure 2 and Figure 3 As shown, this embodiment requires printing a four-color logo in the border area, where the color of logo1a is Pantone CoolGray 4c. The colors of logo2b, logo3c, and logo4d gradually darken from the base color of logo1a.
[0068] Color breakdown. The colors in the Pantone CoolGray series are nearly colorless, differing only in their grayscale (L) values. Pantone CoolGray 4c ink is created by mixing and matching Seiko white and black inks. The colors of Logo2b, logo3c, and logo4d inks can achieve a gradual darkening effect by layering Pantone CoolGray 4c ink dots onto a black background.
[0069] In this embodiment, the ink dots are gray, and the background ink is black. Furthermore, the ink dots are divided into four sizes. When the ink dots and black are combined, a grayscale gradient effect is created. Specifically, the film grayscale 6-1 for the logo1 area is set to 100, the film grayscale 6-2 for the logo2 area is set to 80, the film grayscale 6-3 for the logo3 area is set to 60, and the film grayscale 6-4 for the logo4 area is set to 40.
[0070] Example 1: The film line count is 90 lines, and the screen mesh count is set to 420 mesh. The screen is as follows: Figure 4 As shown.
[0071] The halftone ink used was prepared Pantone CoolGray 4c ink. After printing, because the grayscale of the logo area (6-1) was 100, an entire opaque gray area could be printed. Other grayscale values were printed as halftone dots of different sizes. The base color ink layer was GV3 black ink applied over the halftone ink layer, followed by a second black ink layer (5).
[0072] Example 2
[0073] like Figure 5As shown, this embodiment requires printing a pattern with two colors and a gradient between the two colors, wherein the first pattern e is red, the second pattern f is green, and the color transition area g is a pattern that transitions from red to green.
[0074] The substrate is a glass substrate. The first black ink layer 2 is printed with Seiko GV3 ink. The halftone ink layer 3 is printed with an ink made by mixing Seiko white ink and pigment. The base color ink layer 4 is printed with an ink made by mixing Seiko white ink and pigment. The second black ink layer 5 is printed with Seiko GV3 black ink.
[0075] like Figure 6 As shown, the film of the first pattern e is divided into a normal area e1 and a gradient area e2. The grayscale of the normal area e1 is 100, and the grayscale of the gradient area e2 transitions from 100 to 20. The grayscale of the second pattern f is 100. When printing the halftone ink layer 3, the normal area e1 of the first pattern e is red, the gradient area e2 is red halftone ink with gradually decreasing halftone dots, and the base color ink layer 4 is green, which partially overlaps with the gradient area e2. Thus, a gradient pattern of red and green mixed colors can be formed in the gradient area e2.
[0076] To achieve a harmonious color blend, the ink dots need to be finer. Therefore, the first pattern e is printed using 110-line film and a 500-mesh wire mesh. The second pattern f is printed using 90-line film and a 420-mesh polyester screen.
[0077] Example 3
[0078] like Figure 7 and Figure 8 As shown, this embodiment requires printing four colors, where the first color h is green, the second color i is orange, the third color j is cyan, and the fourth color k is purple.
[0079] Color separation allows the colors mentioned above to be printed in three separate layers: red, green, and blue. Since green does not require synthesis, the first color h can be printed in a single layer; the second color i can be created by combining red and green; the third color j can be created by combining green and blue; and the fourth color k can be created by combining red and blue.
[0080] Output the film. In this embodiment, the color is printed in three layers. The first layer is green, the second layer is blue, and the third layer is red.
[0081] The first film 7 is a film with a green ink layer, such as... Figure 9 As shown, in the first film 7, the grayscale of the first color area is 100, the grayscale of the second color area is 30, and the grayscale of the third color area is 60. The second film 8 is a film for the blue ink layer, as shown... Figure 10As shown, in the second film 8, the grayscale of the first color area is 0, the grayscale of the second color area is 0, the grayscale of the third color area is 100, and the grayscale of the fourth color area is 50. The third film 9 is a film of the red ink layer (base color ink layer), as shown... Figure 11 As shown, in the third film 9, the grayscale of the first and third color areas is 0, and the grayscale of the third and fourth color areas is 100.
[0082] The transparent substrate 1 is a glass substrate. The first black ink layer 2 is printed with Seiko GV3 series black ink. The first halftone ink layer 3-1 is printed with green ink, which is a mixture of Seiko white ink and green pigment. The second halftone ink layer 3-2 is printed with blue ink, which is a mixture of Seiko white ink and blue pigment. The base color ink layer 4 is printed with red ink, which is a mixture of Seiko white ink and red pigment. The second black ink layer 5 uses Seiko GV3 black overprinting ink.
[0083] Considering the printing effect, in this embodiment, the first black ink layer 2, the second black ink layer 5, and the base color ink layer 4 use 90-line film and a 420-mesh screen. The first halftone ink layer 3-1 and the second halftone ink layer 3-2 use 110-line film and a 508-mesh screen.
[0084] In summary, this cover plate can simplify the printing process and improve printing efficiency.
[0085] The above examples are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A multi-color patterned cover plate, comprising a transparent substrate, the transparent substrate including a display area and a border area disposed around the outer periphery of the display area, the border area being printed with a first black ink layer, the first black ink layer forming a hollow area, characterized in that, Also includes: At least one halftone ink layer is printed on the first black ink layer and covers the cut-out area. The halftone ink layer includes multiple ink dots, and the areas between adjacent ink dots are light-transmitting areas. A base color ink layer, which is printed on the at least one halftone ink layer and covers the cut-out area, is used for color mixing with the halftone ink layer.
2. The multi-color patterned cover sheet of claim 1, wherein: It also includes a second black ink layer, which is printed on the base color ink layer and covers the first black ink layer.
3. The multi-color patterned cover sheet of claim 2, wherein: The thickness of the first black ink layer is 5-7 μm, the thickness of the halftone ink layer is 3-5 μm, the thickness of the base color ink layer is 3-7 μm, and the thickness of the second black ink layer is 5-8 μm.
4. The multi-color patterned cover sheet of claim 2, wherein: The halftone ink layer extends 0.3–1 mm beyond the edge of the hollowed-out area, and the base color ink layer extends 0–0.5 mm beyond the edge of the halftone ink layer.
5. The multi-color patterned cover sheet of claim 2, wherein: The second black ink layer extends 0.3 to 0.5 mm beyond the edge of the first black ink layer.
6. The multi-color patterned cover sheet of claim 1, wherein: The ink dots are round, square, or oval.
7. The multi-color patterned cover sheet of claim 1, wherein: The transparent substrate is glass.