DITO touch screen deviation mark structure
By setting up a nested structure of upper and lower cross-region markers in the silver paste line of the DITO touch screen, the problem of difficulty in detecting the silver paste line in the existing technology is solved, and effective detection of the silver paste line deviation is achieved, reducing the Risk of accidental contact.
Patent Information
- Application Number
- CN202322777922.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-16
- Publication Date
- 2025-02-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In production, existing DITO touch screens are difficult to effectively detect the deviation of the silver paste line, resulting in interference magnetic fields in the edge area and causing the problem of accidentally touching.
Design a DITO touch screen bias mark structure, by setting the upper cross mark in the upper trace and the lower cross mark in the lower trace, and using the nested structure to determine the distance between the horizontal axis and the vertical axis, thereby assisting Detect the deviation of the silver paste line.
Through the nested structure of the upper cross alignment mark and the lower cross alignment mark, the deviation of the silver paste line can be effectively detected, preventing the distance between the silver paste line from being too close, avoiding interference in the edge area, and reducing the problem of accidentally touching.
Smart Images
Figure CN222462039U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of touch screens, in particular to a DITO touch screen offset mark structure. Background Art
[0002] DITO touch screen is a common touch screen in the field of touch screens. DITO touch screen is made by making a touch screen with touch function layers on the upper and lower surfaces of a piece of glass. Among them, the key to the touch screen is that ITO pattern layers are made on the upper and lower surfaces of the glass, so that double-sided touch is possible. Then the pattern channel is led out to the binding position through silver paste, and then insulating oil is screen-printed to protect the silver paste line. Since the upper and lower functional layers represent the driving layer on one side and the sensing layer on the other side, in order to reduce the induced magnetic field in the edge routing area, the silver paste lines of the upper and lower layers generally need to be staggered and isolated with ground wires to avoid interference magnetic fields in the edge area, thereby causing false touch problems. Therefore, it is particularly important to check the position deviation of the upper and lower layers of silver paste that are screen-printed successively.
[0003] In summary, the utility model provides a DITO touch screen offset mark structure, through the offset mark structure, it can assist in detecting the offset of the silver paste line in production to avoid the interference magnetic field in the edge area and cause the problem of false touch. Utility Model Content
[0004] The utility model aims to overcome the shortcomings of the prior art and provide a structure of a DITO touch screen offset mark.
[0005] The purpose of this utility model is achieved through the following technical solutions:
[0006] A DITO touch screen offset mark structure comprises: a substrate, wherein an upper protective layer, an upper wiring layer and an upper pattern layer are sequentially arranged on one end surface of the substrate from top to bottom; a lower pattern layer, a lower wiring layer and a lower protective layer are sequentially arranged on the other end surface of the substrate from top to bottom, an upper cross alignment mark is arranged in the upper wiring layer, and a lower cross alignment mark is arranged in the lower wiring layer.
[0007] In one embodiment, the area of the upper cross alignment mark is smaller than that of the lower cross alignment mark, and the upper cross alignment mark is nested in the lower cross alignment mark.
[0008] In one embodiment, the horizontal axis interval between the upper cross alignment mark and the lower cross alignment mark is 0.05-0.2 mm.
[0009] In one embodiment, the vertical axis interval between the upper cross alignment mark and the lower cross alignment mark is 0.05-0.2 mm.
[0010] In one embodiment, the substrate is a white glass substrate.
[0011] In one embodiment, the upper protective layer is insulating oil.
[0012] In one embodiment, the lower protective layer is insulating oil.
[0013] In one embodiment, the upper pattern layer is an ITO pattern layer.
[0014] In one embodiment, the lower pattern layer is an ITO pattern layer.
[0015] In one embodiment, the upper layer wiring and the lower layer wiring are both silk screen printed silver paste lines or photolithography silver paste lines.
[0016] Compared with the prior art, the utility model has at least the following advantages:
[0017] The utility model discloses a DITO touch screen offset mark structure, by setting an upper cross alignment mark in the upper wiring and a lower cross alignment mark in the lower wiring, so as to judge the interval distance between the horizontal axis and the vertical axis through the nested structure of the upper cross alignment mark and the lower cross alignment mark, thereby assisting in detecting the offset of the silver paste line in production, preventing the silver paste lines from being too close, preventing interference magnetic fields from appearing in the edge area, and causing false touch problems. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.
[0019] Figure 1 A schematic diagram of the hierarchical structure of a DITO touch screen offset mark structure in one embodiment of the utility model;
[0020] Figure 2 for Figure 1 A schematic diagram of a planar structure in an embodiment of the utility model;
[0021] Among them, the figure numbers are: 10. A DITO touch screen offset mark structure; 100. Substrate; 110. Upper protective layer; 120. Upper wiring; 121. Upper cross alignment mark; 130. Upper pattern layer; 140. Lower pattern layer; 150. Lower wiring; 151. Lower cross alignment mark; 160. Lower protective layer. DETAILED DESCRIPTION
[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.
[0023] Embodiment 1:
[0024] See also Figure 1 and Figure 2 A DITO touch screen offset mark structure 10 is characterized in that it includes: a substrate 100, an upper protective layer 110, an upper wiring 120 and an upper pattern layer 130 are sequentially arranged on one end surface of the substrate 100 from top to bottom, a lower pattern layer 140, a lower wiring 150 and a lower protective layer 160 are sequentially arranged on the other end surface of the substrate 100 from top to bottom, an upper cross alignment mark 121 is arranged in the upper wiring 120, and a lower cross alignment mark 151 is arranged in the lower wiring 150.
[0025] It should be noted that a DITO touch screen offset mark structure 10 of the utility model sets an upper cross alignment mark 121 in the upper wiring 120 and a lower cross alignment mark 151 in the lower wiring 140, thereby judging the interval between the horizontal axis and the vertical axis of the upper cross alignment mark 121 and the lower cross alignment mark 151 through the nested structure of the upper cross alignment mark 121 and the lower cross alignment mark 151, thereby judging the distance between the upper wiring 120 and the lower wiring 140, so that in production, the offset of the silver paste line can be detected to prevent the distance between the silver paste lines from being too close, and to prevent interference magnetic fields from appearing in the edge area, which may cause false touches.
[0026] In one implementation, the area of the upper cross alignment mark 121 is smaller than that of the lower cross alignment mark 151 , and the upper cross alignment mark 121 is nested in the lower cross alignment mark 151 .
[0027] It should be noted that the area of the upper cross alignment mark 121 is smaller than that of the lower cross alignment mark 151, forming a nested structure. At the same time, the upper cross alignment mark 121 is nested in the lower cross alignment mark 151. The distance between the upper cross alignment mark 121 and the lower cross alignment mark 151 on the horizontal and vertical axes can facilitate the determination of the distance between the layer wiring 120 and the lower layer wiring 140, making it easier to detect the misalignment of the silver paste line, prevent the silver paste lines from being too close, and prevent interference magnetic fields from appearing in the edge area, which may lead to false touches.
[0028] In one embodiment, the horizontal axis interval between the upper cross alignment mark 121 and the lower cross alignment mark 151 is 0.05-0.2 mm. Preferably, the horizontal axis interval between the upper cross alignment mark 121 and the lower cross alignment mark 151 is 0.1 mm.
[0029] In one embodiment, the vertical axis interval between the upper cross alignment mark 121 and the lower cross alignment mark 151 is 0.05-0.2 mm. Preferably, the vertical axis interval between the upper cross alignment mark 121 and the lower cross alignment mark 151 is 0.1 mm.
[0030] In one embodiment, the substrate 100 is a white glass substrate, wherein the white glass substrate as a substrate of a touch screen has good light transmittance and stable properties, and is convenient for making an upper pattern layer 130 and a lower pattern layer 140 on the surface of the white glass substrate, so that the upper pattern layer 130 and the lower pattern layer 140 will not react with the white glass substrate.
[0031] In one embodiment, the upper protective layer 110 and the lower protective layer 160 are both insulating oil, which can isolate the air and prevent moisture in the air from entering the touch screen, thereby preventing moisture from damaging the electronic components inside the touch screen.
[0032] In one embodiment, the upper pattern layer 130 and the lower pattern layer 140 are ITO pattern layers. It should be noted that the ITO pattern layer is indium tin oxide. The indium tin oxide target is plated on the substrate 100 by magnetron sputtering to obtain more uniform display control and ensure that the touch screen will not be accidentally touched when in use.
[0033] In one embodiment, the upper wiring 120 and the lower wiring 150 are both silk-screened silver paste lines or photolithography silver paste lines. The silk-screened silver paste lines are printed on the surface of the upper pattern layer and the lower pattern layer through a silk screen. The process is simple and suitable for use in large-scale production. The photolithography silver paste lines are accurately positioned, which can ensure that the routing of the silver paste lines is more accurate.
[0034] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A DITO touch screen offset mark structure, characterized in that: include: A substrate, wherein an upper protective layer, an upper wiring layer and an upper pattern layer are sequentially arranged on one end surface of the substrate from top to bottom; The other end surface of the substrate is provided with a lower pattern layer, a lower wiring layer and a lower protection layer in sequence from top to bottom, an upper cross alignment mark is provided in the upper wiring layer, and a lower cross alignment mark is provided in the lower wiring layer.
2. The DITO touch screen offset mark structure according to claim 1, characterized in that: The area of the upper cross alignment mark is smaller than that of the lower cross alignment mark, and the upper cross alignment mark is nested in the lower cross alignment mark.
3. The DITO touch screen offset mark structure according to claim 1, characterized in that: The horizontal axis interval between the upper cross alignment mark and the lower cross alignment mark is 0.05-0.2 mm.
4. The DITO touch screen offset mark structure according to claim 1, characterized in that: The vertical axis interval between the upper cross alignment mark and the lower cross alignment mark is 0.05-0.2 mm.
5. The DITO touch screen offset mark structure according to claim 1, characterized in that: The substrate is a white glass substrate.
6. The DITO touch screen offset mark structure according to claim 1, characterized in that: The upper protective layer is insulating oil.
7. The DITO touch screen offset mark structure according to claim 1, characterized in that: The lower protective layer is insulating oil.
8. The DITO touch screen offset mark structure according to claim 1, characterized in that: The upper pattern layer is an ITO pattern layer.
9. The DITO touch screen offset mark structure according to claim 1, characterized in that: The lower pattern layer is an ITO pattern layer.
10. The DITO touch screen offset mark structure according to claim 1, characterized in that: The upper layer wiring and the lower layer wiring are both one of the silk screen silver paste lines or the photolithography silver paste lines.