Cover plate with gradient pattern
By setting a combined structure of semi-transparent layer, adhesive layer and gradient pattern layer in the border area of the automotive display cover plate, the problem of poor printing effect of gradient patterns in the prior art is solved, and a higher consistency of product yield and gradient effect is achieved.
Patent Information
- Application Number
- CN202421772083.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-07-25
AI Technical Summary
In the prior art, the gradient pattern of the automotive display cover plate has problems such as pattern size expansion, poor adhesion and uneven transmittance during the silk screen printing and printing process, resulting in poor gradient effect.
Using a combined structure of semi-transparent layer, adhesive layer and gradient pattern layer, the gradient effect is achieved in the border area of the cover plate through silk screen printing and printing processes. The semi-transparent layer and adhesive layer improve transmittance and adhesion, and the gradient pattern layer achieves gradient effect through printing.
It solves the problem of missing printing effect of gradient patterns, improves product yield, and enhances the adhesion and transmittance consistency of gradient patterns.
Smart Images
Figure CN223266717U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display equipment, in particular to a cover plate with a gradient pattern. Background Art
[0002] The border area of a car display cover is generally black. As people's requirements for the aesthetics of car interiors increase, gradient patterns begin to appear in the border area of the display cover.
[0003] In the prior art, Figure 1 As shown, the border area is printed with a first black ink layer 200 and a second black ink layer 300 stacked in sequence. A first hollow opening is provided on the first black ink layer 200 in the border area, and a second hollow opening corresponding to the first hollow opening is provided on the second black ink layer 300. The gradient pattern can be achieved in two ways:
[0004] The first one, such as Figure 1 As shown, ink dots 400 of varying sizes are screen-printed in the first hollow opening, i.e., small ink dots are printed in areas with high transmittance, and large ink dots are printed in areas with low transmittance. When the display screen is turned on, light is irradiated onto the ink dots 400 through the second hollow opening to achieve a light-transmitting gradient effect. However, this method has the following drawbacks:
[0005] (1) During screen printing, due to the effect of pressure, the mesh will be stretched, which will cause the size of the printed pattern to expand slightly relative to the pattern, resulting in the ink in the large dot area being connected, the large dot area being smeared, and the gradient effect being lost.
[0006] (2) BM ink has a high viscosity. When printing small dots with BM ink, there will be ink blockage and ink failure, resulting in the loss of small dot areas.
[0007] The second type, such as Figure 2 As shown, ink of varying thickness is sprayed into the first and second hollow openings to achieve a gradient effect of varying transmittance. However, the printed layer 500 exhibits poor adhesion to the substrate 100, and the printed color differs from the black silk-screen ink, resulting in poor integration between the patterned area and the frame area. Furthermore, the thicker the printed ink, the less comfortable it is to attach the cover. Utility Model Content
[0008] In order to solve the above problems, the purpose of the utility model is to provide a cover plate with a gradient pattern, which improves the product yield and printing effect.
[0009] Based on the above problems, the technical solution provided by the present invention is:
[0010] A cover plate with a gradient pattern includes a substrate, wherein the substrate includes a display area located in the middle and a frame area arranged around the display area, wherein the frame area is printed with a first black ink layer and a second black ink layer stacked in sequence:
[0011] A first hollow opening is provided on the first black ink layer, a second hollow opening corresponding to the first hollow opening is provided on the second black ink layer, a semi-permeable layer is provided in the first hollow opening, an adhesive layer is provided in the second hollow opening, and a gradient pattern layer is provided at a position of the second black ink layer away from the first black ink layer and corresponding to the adhesive layer.
[0012] In some embodiments, the thickness of the first black ink layer is 5 to 15 μm, and the thickness of the second black ink layer is 5 to 15 μm.
[0013] In some embodiments, the semi-permeable layer has a thickness of 3 to 10 μm.
[0014] In some embodiments, the semi-permeable layer has a transmittance of 10 to 90%.
[0015] In some embodiments, the adhesive layer is a resin layer.
[0016] In some embodiments, the thickness of the adhesive layer is less than 10 μm.
[0017] In some embodiments, the gradient pattern layer is a printing layer.
[0018] In some embodiments, the gradient pattern layer has a thickness of less than 20 μm.
[0019] In some embodiments, the transmittance of the printing layer is 5-50%.
[0020] In some embodiments, the substrate is a fully transparent cover plate or a semi-transparent cover plate.
[0021] Compared with the prior art, the advantages of the present invention are:
[0022] (1) A translucent gradient pattern effect is achieved by providing a semi-transparent layer, an adhesive layer, and a gradient pattern layer, thereby solving the problem of loss of gradient effect in silk screen printing and improving product yield;
[0023] (2) Compared with inkjet printing, the semi-permeable layer bears part of the transmittance, which can reduce the printing thickness;
[0024] (3) The adhesive layer is provided to improve the adhesion of the gradient pattern layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0026] Figure 1 This is a schematic diagram of the structure of a screen printing gradient pattern cover in the prior art;
[0027] Figure 2 It is a structural diagram of a cover plate for printing a gradient pattern in the prior art;
[0028] Figure 3 This is a structural diagram of Example 1 of a cover plate with a gradient pattern according to the present invention;
[0029] in:
[0030] 100, substrate; 200, first black ink layer; 300, second black ink layer; 400, ink dots; 500, printing layer;
[0031] 1. Substrate;
[0032] 2. First black ink layer;
[0033] 3. Second black ink layer;
[0034] 4. Semi-permeable layer;
[0035] 5. Adhesive layer;
[0036] 6. Gradient pattern layer. DETAILED DESCRIPTION
[0037] The above scheme is further described below with reference to specific examples. It should be understood that these examples are intended to illustrate the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer. The implementation conditions not specified are generally those used in routine experiments.
[0038] like Figure 3 , a schematic diagram of the structure of a cover plate with a gradient pattern is provided. The cover plate includes a substrate 1 having a display area located in the center and a frame area arranged around the display area. The frame area is printed with a first black ink layer 2 and a second black ink layer 3 stacked in sequence. The substrate 1 is a fully transparent cover plate or a semi-transparent cover plate. The fully transparent cover plate can be made of fully transparent glass or a fully transparent acrylic plate, while the semi-transparent cover plate can be made of a semi-transparent acrylic plate.
[0039] The first black ink layer 2 is made of Seiko GV3 series ink, screen printed, and has a thickness of 5 to 15 μm. The second black ink layer 3 is made of Seiko GV3 series ink, screen printed, and has a thickness of 5 to 15 μm. Its purpose is to reduce pinholes on the basis of the first black ink layer 2 and to meet the requirements of lamination.
[0040] In order to facilitate the setting of a gradient pattern in the border area, a first hollow opening is provided on the first black ink layer 2, a second hollow opening corresponding to the first hollow opening is provided on the second black ink layer 3, a semi-permeable layer 4 is provided in the first hollow opening, an adhesive layer 5 is provided in the second hollow opening, and a gradient pattern layer 6 is provided at a position of the second black ink layer 3 away from the first black ink layer 2 and corresponding to the adhesive layer 5.
[0041] The semi-permeable layer 4 is printed with a mixture of Seiko 800 varnish and Seiko GV3 series ink, or printed with pure varnish, with a thickness of 3 to 10 μm and a transmittance of 10 to 90%.
[0042] The adhesive layer 5 is a resin layer made of nitrocellulose resin or modified acrylic resin and is produced by screen printing or spray printing to improve the adhesion of the gradient pattern layer 6. The thickness of the adhesive layer 5 is less than 10 μm.
[0043] The gradient pattern layer 6 is a printing layer obtained by UV inkjet printing. The gradient effect is achieved by controlling the thickness of the printing layer. The thickness of the gradient pattern layer 6 is less than 20 μm, and the transmittance is 5-50%.
[0044] Example 1
[0045] The specific structure is as Figure 3 As shown, the substrate 1 is a glass cover plate, and a pattern area needs to be set in the frame area. The transmittance of the pattern area transitions from 10% to 1% from the center to the periphery, that is, the center is bright and the periphery is dark. Since the transmittance of the pattern area is low, if it is made of inkjet printing ink, the thickness is too thick, and there will be abnormalities when the cover plate is attached. Therefore, the transmittance of the semi-permeable layer 4 is selected to be 20%, and the inkjet printing ink is then used to make the overall transmittance 1% to 10%.
[0046] Specifically, the first black ink layer 2 is made of Seiko GV3 series ink, screen-printed, and has a thickness of 10μm. The second black ink layer 3 is made of Seiko GV3 series ink, screen-printed, and has a thickness of 12μm. The semi-permeable layer 4 is made of a mixture of Seiko 800 varnish and the ink of the first black ink layer 2, with a ratio of approximately varnish: ink = 5:1. The adhesive layer 5 is nitrocellulose resin and screen-printed. The gradient pattern layer 6 is printed using UV inkjet printing, with a printing transmittance of 5% to 50%. Because a semi-permeable ink transmittance below 20% will inevitably result in defects such as black spots, the transmittance of the semi-permeable layer 4 is set to 20%.
[0047] Among them, the first black ink layer 2, the second black ink layer 3, the semi-permeable layer 4, and the adhesive layer 5 are all simply surface-dried at 170°. The gradient pattern layer 6 is printed by a spray printer and then UV-cured. After printing, it is baked at 160° for 30 minutes to fully dry.
[0048] Example 2
[0049] The rest is the same as Example 1, except that: the substrate adopts a semi-transparent acrylic cover plate with a transmittance of 30%. Therefore, the semi-transparent layer 4 is printed with pure varnish with a transmittance of 90%, and the transmittance of the gradient pattern area is 4-30%.
[0050] In summary, the cover plate structure can solve the problem of loss of gradient effect in silk screen printing and improve the adhesion of the gradient pattern layer compared to inkjet printing.
[0051] The above examples are intended only to illustrate the technical concepts and features of this utility model. Their purpose is to enable those familiar with the art to understand the content of this utility model and implement it accordingly. They are not intended to limit the scope of protection of this utility model. Any equivalent changes or modifications based on the spirit of this utility model shall be included in the scope of protection of this utility model.
Claims
1. A cover plate with a gradient pattern, comprising a substrate, the substrate including a display area located in the center and a frame area arranged around the display area, the frame area being printed with a first black ink layer and a second black ink layer stacked in sequence, characterized in that: A first hollow opening is provided on the first black ink layer, a second hollow opening corresponding to the first hollow opening is provided on the second black ink layer, a semi-permeable layer is provided in the first hollow opening, an adhesive layer is provided in the second hollow opening, and a gradient pattern layer is provided at a position of the second black ink layer away from the first black ink layer and corresponding to the adhesive layer.
2. The cover plate with a gradient pattern according to claim 1, characterized in that: The thickness of the first black ink layer is 5 to 15 μm, and the thickness of the second black ink layer is 5 to 15 μm.
3. The cover plate with a gradient pattern according to claim 1, characterized in that: The thickness of the semi-permeable layer is 3 to 10 μm.
4. The cover plate with a gradient pattern according to claim 3, characterized in that: The transmittance of the semi-permeable layer is 10 to 90%.
5. The cover plate with a gradient pattern according to claim 1, characterized in that: The adhesive layer is a resin layer.
6. The cover plate with a gradient pattern according to claim 5, characterized in that: The thickness of the adhesive layer is less than 10 μm.
7. The cover plate with a gradient pattern according to claim 1, characterized in that: The gradient pattern layer is a spray-printed layer.
8. The cover plate with a gradient pattern according to claim 7, characterized in that: The thickness of the gradient pattern layer is less than 20 μm.
9. The cover plate with a gradient pattern according to claim 7, characterized in that: The transmittance of the printing layer is 5-50%.
10. The cover plate with a gradient pattern according to claim 1, characterized in that: The substrate is a fully transparent cover plate or a semi-transparent cover plate.