Cover plate for visually detecting printing deviation of alignment line
Through the setting of the wire print on the cover and the use of its position to detect the offset of the line, the problem of low efficiency of traditional measurement methods is solved, and the fast and accurate testing of the line line is achieved, and the production efficiency and product competitiveness are improved.
Patent Information
- Application Number
- CN202421263183.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The traditional method has low accuracy measurement efficiency of the cover plate during the production process, resulting in reduced production efficiency, increased cost and decreased product competitiveness.
Design a cover with an intuitive detection of the sealing of the line line. By on the substrate on the substrate, multiple alignment labels are used to use the distance between the position of the benchmark and the edge of the substrate. Quick test.
Through the naked eye detection of the position of the benchmark, it can quickly determine whether the pairing line is offset, save measurement time, improve the measurement efficiency of accuracy, reduce production costs, and improve product competitiveness.
Smart Images
Figure CN222420737U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a cover plate for visually detecting whether a positioning line is printed deviated. Background Art
[0002] The back of traditional cover plates will be screen-printed with various alignment lines for corresponding module assembly or for double-sided adhesive alignment. In order to ensure the accuracy of assembly, how to ensure the accuracy of the alignment lines on the cover plates is a key. The traditional method is to use measuring instruments to measure the accuracy of the alignment lines. If the accuracy of the alignment lines is found to be insufficient, stop the loss and return for repair in time. However, in the actual production process, this inspection method is usually carried out during random inspections. If each cover plate is measured by a measuring instrument, it will greatly reduce the production efficiency of the cover plates, increase production costs, and reduce the competitiveness of the products. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to improve the accuracy measurement efficiency of the alignment line.
[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:
[0005] To solve the above technical problems, the utility model provides a cover plate for intuitively detecting whether an alignment line is printed offset, comprising a square substrate, a first black ink layer is silk-screened on the lower surface of the substrate, a second black ink layer is silk-screened on the lower surface of the first black ink layer, an alignment line layer is silk-screened on the lower surface of the second black ink layer, and an alignment mark is provided on the alignment line layer. There are four alignment marks, and the four alignment marks include an upper alignment mark, a left alignment mark, a lower alignment mark and a right alignment mark. The upper alignment mark, the left alignment mark, the lower alignment mark and the right alignment mark are respectively arranged on the upper edge, the left edge, the lower edge and the right edge of the substrate, and the distances between the upper alignment mark, the left alignment mark, the lower alignment mark and the right edge of the substrate are all absolute values of the silk-screen tolerance of the equipment.
[0006] As a preferred embodiment of the cover plate for visually detecting whether the alignment line is printed off-center provided by the utility model, the screen printing tolerance of the equipment is ±0.3mm, and the distances between the upper alignment mark, left alignment mark, lower alignment mark and right alignment mark and the upper edge, left edge, lower edge and right edge of the substrate are all 0.3mm.
[0007] As a preferred implementation of the cover plate for visually detecting whether the alignment line is offset provided by the utility model, the shape of the alignment mark is T-shaped or cross-shaped.
[0008] As a preferred implementation of the cover plate for visually detecting whether the alignment line is printed offset provided by the utility model, an anti-fingerprint film is provided on the upper surface of the cover plate.
[0009] As a preferred implementation of the cover plate for visually detecting whether the alignment line is offset provided by the utility model, the thickness of the anti-fingerprint film is 1 μm to 10 μm.
[0010] As a preferred implementation of the cover plate for visually detecting whether the alignment line is offset provided by the utility model, the upper surface of the cover plate located in the non-visible area is provided with a surface treatment layer for improving the surface roughness.
[0011] As a preferred implementation of the cover plate for visually detecting whether the alignment line is offset provided by the utility model, the surface treatment layer is a frosted treatment layer.
[0012] As a preferred implementation of the cover plate for visually detecting whether the alignment line is offset provided by the utility model, the surface treatment layer is an etching treatment layer.
[0013] As a preferred implementation of the cover plate for visually detecting whether the alignment line is offset provided by the utility model, a glue layer is provided on the lower surface of the anti-fingerprint film located in the non-visible area.
[0014] As a preferred implementation of the cover plate for visually detecting whether the alignment line is offset provided by the utility model, the thickness of the glue layer is 0.5 μm.
[0015] The utility model has the following beneficial effects:
[0016] Since the lower surface of the second black ink layer is screen-printed with an alignment line layer, the alignment line layer is provided with an alignment mark, and the upper alignment mark, left alignment mark, lower alignment mark and right alignment mark are respectively arranged on the upper edge, left edge, lower edge and right edge of the substrate, and the distance from these alignment marks to the edge of the substrate is the absolute value of the screen printing tolerance of the equipment, that is, when the screen printing tolerance of the equipment is ±0.3mm, then the distance from these alignment marks to the edge of the substrate is 0.3mm, and these alignment marks are equivalent to a positioning effect. If the screen printing alignment line exceeds the screen printing tolerance, such as the screen printing position is offset, the alignment mark will be screen-printed outside the glass, that is, the alignment mark will be missing after screen printing. The staff can visually detect whether the screen-printed alignment line has deviations by naked eyes, without the need to use test instruments to measure, stop losses in time at the first time, check related nets and equipment, save labor and time, improve the accuracy measurement efficiency of the alignment line, reduce production costs, and improve product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 The utility model provides a structural schematic diagram of a cover plate for intuitively detecting whether a registration line is printed offset.
[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the bit line layer in the figure.
[0020] Figure 3 This is a schematic diagram of the structure of Example 2.
[0021] Description of Figure Numbers:
[0022] Substrate 1; first black ink layer 11; second black ink layer 12; alignment line layer 13; alignment mark 14; anti-fingerprint film 15; adhesive layer 16. DETAILED DESCRIPTION
[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0025] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0026] The utility model provides a cover plate for intuitively detecting whether an alignment line is printed off-center, comprising a square substrate, a first black ink layer is silk-screened on the lower surface of the substrate, a second black ink layer is silk-screened on the lower surface of the first black ink layer, an alignment line layer is silk-screened on the lower surface of the second black ink layer, the alignment line layer is provided with an alignment mark, and the number of the alignment marks is four, the four alignment marks include an upper alignment mark, a left alignment mark, a lower alignment mark and a right alignment mark, the upper alignment mark, the left alignment mark, the lower alignment mark and the right alignment mark are respectively arranged on the upper edge, the left edge, the lower edge and the right edge of the substrate, and the distances between the upper alignment mark, the left alignment mark, the lower alignment mark and the right alignment mark and the upper edge, the left edge, the lower edge and the right edge of the substrate are all absolute values of the silk-screen tolerance of the equipment.
[0027] Since the lower surface of the second black ink layer is screen-printed with an alignment line layer, the alignment line layer is provided with an alignment mark, and the upper alignment mark, left alignment mark, lower alignment mark and right alignment mark are respectively arranged on the upper edge, left edge, lower edge and right edge of the substrate, and the distance from these alignment marks to the edge of the substrate is the absolute value of the screen printing tolerance of the equipment, that is, when the screen printing tolerance of the equipment is ±0.3mm, then the distance from these alignment marks to the edge of the substrate is 0.3mm, and these alignment marks are equivalent to a positioning effect. If the screen printing alignment line exceeds the screen printing tolerance, such as the screen printing position is offset, the alignment mark will be screen-printed outside the glass, that is, the alignment mark will be missing after screen printing. The staff can visually detect whether the screen-printed alignment line has deviations by naked eyes, without the need to use test instruments to measure, stop losses in time at the first time, check related nets and equipment, save labor and time, improve the accuracy measurement efficiency of the alignment line, reduce production costs, and improve product competitiveness.
[0028] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.
[0029] See also Figure 1 and Figure 2 , a cover plate for intuitively detecting whether an alignment line is printed off-center is provided by the utility model, comprising a square substrate 1, a first black ink layer 11 is silk-screened on the lower surface of the substrate 1, a second black ink layer 12 is silk-screened on the lower surface of the first black ink layer 11, an alignment line layer 13 is silk-screened on the lower surface of the second black ink layer 12, an alignment mark 14 is provided on the alignment line layer 13, and there are four alignment marks 14, the four alignment marks 14 include an upper alignment mark located at the top, a left alignment mark located at the left, a lower alignment mark located at the bottom and a right alignment mark located at the right, the upper alignment mark, the left alignment mark, the lower alignment mark and the right alignment mark are respectively arranged at the upper edge, the left edge, the lower edge and the right edge of the substrate 1, and the distances between the upper alignment mark, the left alignment mark, the lower alignment mark and the right alignment mark and the upper edge, the left edge, the lower edge and the right edge of the substrate 1 are all absolute values of the equipment silk-screen tolerance. Since the lower surface of the second black ink layer 12 is silk-screened with an alignment line layer 13, the alignment line layer 13 is provided with an alignment mark 14, and the upper alignment mark, left alignment mark, lower alignment mark and right alignment mark are respectively arranged on the upper edge, left edge, lower edge and right edge of the substrate 1, and the distance between these alignment marks 14 and the edge of the substrate 1 is the absolute value of the silk-screen tolerance of the equipment, that is, when the silk-screen tolerance of the equipment is ±0.3mm, the distance between the upper alignment mark, left alignment mark, lower alignment mark and right alignment mark and the upper edge, left edge, lower edge and right edge of the substrate 1 is 0.3mm, and these alignment marks 14 are equivalent to a positioning function. If the screen printing alignment line exceeds the screen printing tolerance, for example, the screen printing position is offset, the alignment mark 14 will be screen printed outside the glass, that is, the alignment mark 14 will be missing after screen printing. The staff can visually detect whether the screen printed alignment line has deviations by naked eyes, without the need to use test instruments to measure, and stop the loss in time at the first time, check the relevant nets and equipment, save labor and time, improve the accuracy measurement efficiency of the alignment line, reduce production costs, and improve product competitiveness.
[0030] Furthermore, the alignment mark 14 is in a T-shape or a cross-shape, and a suitable alignment mark 14 can be selected in actual use.
[0031] See also Figure 3 As a further optimization scheme of Example 1, in this embodiment, an anti-fingerprint film 15 is provided on the upper surface of the substrate 1, so that users can avoid fingerprints remaining on the surface of the substrate 1 during use, thereby improving the beauty of the liquid crystal display and enhancing the competitiveness of the product.
[0032] Furthermore, the anti-fingerprint film 15 has a thickness of 1 μm to 10 μm.
[0033] Furthermore, the surface treatment layer is a frosted layer.
[0034] Furthermore, the surface treatment layer is an etching treatment layer.
[0035] Furthermore, the upper surface of the substrate 1 in the non-visible area is provided with a surface treatment layer for improving the surface roughness, and the lower surface of the anti-fingerprint film 15 in the non-visible area is provided with an adhesive layer 16, so that the anti-fingerprint film 15 can be more firmly attached to the upper surface of the substrate 1. More preferably, the thickness of the adhesive layer 16 is 0.5 μm.
[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0037] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.
Claims
1. A cover plate for visually detecting whether the alignment line is printed off, characterized in that: It includes a square substrate, a first black ink layer is silk-screened on the lower surface of the substrate, a second black ink layer is silk-screened on the lower surface of the first black ink layer, an alignment line layer is silk-screened on the lower surface of the second black ink layer, the alignment line layer is provided with an alignment mark, and there are four alignment marks, including an upper alignment mark, a left alignment mark, a lower alignment mark and a right alignment mark. The upper alignment mark, the left alignment mark, the lower alignment mark and the right alignment mark are respectively arranged on the upper edge, the left edge, the lower edge and the right edge of the substrate, and the distances between the upper alignment mark, the left alignment mark, the lower alignment mark and the right edge of the substrate are all absolute values of the equipment silk-screen tolerance.
2. The cover plate for visually detecting whether the alignment line is offset according to claim 1, characterized in that: The screen printing tolerance of the equipment is ±0.3mm, and the distances between the upper alignment mark, left alignment mark, lower alignment mark and right alignment mark and the upper edge, left edge, lower edge and right edge of the substrate are all 0.3mm.
3. The cover plate for visually detecting whether the alignment line is offset according to claim 1, characterized in that: The alignment mark is in a T-shape or a cross-shape.
4. The cover plate for visually detecting whether the alignment line is offset according to claim 1, characterized in that: An anti-fingerprint film is arranged on the upper surface of the cover plate.
5. The cover plate for visually detecting whether the alignment line is offset according to claim 4, characterized in that: The anti-fingerprint film has a thickness of 1 μm to 10 μm.
6. The cover plate for visually detecting whether the alignment line is printed off-center according to claim 4, characterized in that: The upper surface of the cover plate located in the non-visible area is provided with a surface treatment layer for improving the surface roughness.
7. The cover plate for visually detecting whether the alignment line is offset according to claim 6, characterized in that: The surface treatment layer is a frosted layer.
8. The cover plate for visually detecting whether the alignment line is printed off-center according to claim 6, characterized in that: The surface treatment layer is an etching treatment layer.
9. The cover plate for visually detecting whether the alignment line is printed off-center according to claim 4, characterized in that: The lower surface of the anti-fingerprint film located in the non-visible area is provided with an adhesive layer.
10. The cover plate for visually detecting whether the alignment line is printed off-center according to claim 9, characterized in that: The thickness of the adhesive layer is 0.5 μm.