Protective structure of touch screen
By setting up multiple protective layers on the ITO electrode and metal bridge of the touch screen, the corrosion and circuit breaking problem caused by water vapor erosion is solved, and the protection of the touch screen is achieved to ensure functional stability.
Patent Information
- Application Number
- CN202421671908.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The exposed parts of the ITO electrodes and metal bridges in the touch screen are susceptible to water vapor erosion, causing corrosion and breaking of circuits, affecting the normal function of functions.
Multiple layers of protective layers are provided on the ITO electrode and the metal bridge, including the first insulating layer and the protective layer, and the exposed area is filled with silica material and blocked by the detonation layer to prevent water vapor erosion.
Effectively prevent water vapor erosion, ensure the functional stability of ITO electrodes and metal bridges, avoid corrosion and circuit breaking, and ensure the normal operation of the touch screen.
Smart Images
Figure CN223092402U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display screens, in particular to a protection structure for a touch screen. Background Art
[0002] In the visible area of the touch screen, conduction is achieved through ITO electrodes in the X direction and through metal bridges in the Y direction. However, in the related art, most of the areas of the ITO electrodes and the metal bridges are usually exposed, and these most areas cannot be protected. As a result, after water vapor penetrates, the ITO electrodes and the metal bridges are corroded and open-circuited, resulting in functional failure. Summary of the Utility Model
[0003] An object of the utility model is to overcome the deficiencies in the prior art and provide a protection structure for a touch screen, which can protect the ITO electrodes and the metal bridges and prevent them from being corroded and open-circuited.
[0004] The object of the utility model is achieved by the following technical solutions:
[0005] A first aspect of the present application provides a protection structure for a touch screen, including: a glass substrate; ITO electrodes disposed on the glass substrate; metal bridges disposed on the ITO electrodes; a first protection component including a first insulating layer, a first protection layer and a second protection layer, the first insulating layer being disposed on the ITO electrodes, the first protection layer being disposed on the ITO electrodes, the first protection layer being connected to the first insulating layer, and the second protection layer being disposed on the ITO electrodes; a second protection component including a second insulating layer and a third protection layer, the second insulating layer being disposed on the metal bridges, and the third protection layer being disposed on the second insulating layer.
[0006] The first protection layer and the second protection layer are parallel to each other.
[0007] It further includes a shadow elimination layer, one end of the shadow elimination layer is disposed on the ITO electrodes, and the other end of the shadow elimination layer is disposed on the glass substrate.
[0008] The length of the shadow elimination layer is the same as the length of the glass substrate.
[0009] It further includes metal traces, and the metal traces are electrically connected to the ITO electrodes.
[0010] The shadow elimination layer has a rectangular cross-sectional structure.
[0011] The glass substrate has a rectangular cross-sectional structure.
[0012] The thickness of the first protection layer is the same as the thickness of the second protection layer.
[0013] The first protective layer has a rectangular cross-sectional structure.
[0014] The shadow elimination layer is parallel to the glass substrate.
[0015] Compared with the prior art, the present utility model has at least the following advantages:
[0016] By providing the first protective layer, the second protective layer, and the third protective layer, the exposed areas of the ITO electrode and the metal bridge can be filled, thereby being able to resist the erosion of external water vapor and ensuring normal functions. Description of the Drawings
[0017] 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 will be briefly introduced below.
[0018] Figure 1 It is a schematic structural diagram of the protective structure of the touch screen in an embodiment of the present utility model;
[0019] Figure 2 It is a schematic structural diagram of another implementation manner of the protective structure of the touch screen in an embodiment of the present utility model. Detailed Embodiments
[0020] The embodiments of the present application will be described in more detail below with reference to the drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.
[0021] It should be understood that although the terms "first", "second", "third", etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0022] Unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0023] The technical solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0024] Please refer to Figure 1 , a protection structure for a touch screen, including: a glass substrate 100, an ITO electrode 200, a metal bridge 300, a first protection component 400 and a second protection component 500; the ITO electrode 200 is disposed on the glass substrate 100; the metal bridge 300 is disposed on the ITO electrode 200; the first protection component 400 includes a first insulating layer 410, a first protection layer 420 and a second protection layer 430, the first insulating layer 410 is disposed on the ITO electrode 200, the first protection layer 420 is disposed on the ITO electrode 200, the first protection layer 420 is connected to the first insulating layer 410, and the second protection layer 430 is disposed on the ITO electrode 200; the second protection component 500 includes a second insulating layer 510 and a third protection layer 520, the second insulating layer 510 is disposed on the metal bridge 300, and the third protection layer 520 is disposed on the second insulating layer 510.
[0025] Specifically, the first protection layer 420 and the second protection layer 430 are parallel to each other, the thickness of the first protection layer 420 is the same as that of the second protection layer 430, and the first protection layer 420 has a rectangular cross-sectional structure.
[0026] It should be noted that there are multiple ITO electrodes 200, which are divided into row electrodes and column electrodes. The function of the metal bridge 300 is to electrically connect adjacent electrode blocks at the intersection of the row electrodes and the column electrodes, so as to form a continuous electrode. The metal bridge 300 and the continuously arranged electrodes are separated by the second insulating layer 510, so as to effectively prevent the row electrodes and the column electrodes from short-circuiting at the intersection, and the first insulating layer 410 is to prevent short-circuiting between adjacent ITO electrodes. Further, the first protection layer 420, the second protection layer 430 and the third protection layer 520 are all made of silicon dioxide, which is used to fill the exposed areas of the ITO electrode 200 and the metal bridge 300, so as to be able to resist the erosion of external water vapor and ensure normal functions.
[0027] Please refer to Figure 1, in one embodiment, a protective structure of a touch screen further includes a shadow elimination layer 600. One end of the shadow elimination layer 600 is disposed on the ITO electrode 200, and the other end of the shadow elimination layer 600 is disposed on the glass substrate 100. Specifically, the length of the shadow elimination layer 600 is the same as the length of the glass substrate 100. Specifically, the shadow elimination layer 600 has a rectangular cross-sectional structure. Specifically, the glass substrate 100 has a rectangular cross-sectional structure. Specifically, the shadow elimination layer 600 is parallel to the glass substrate 100.
[0028] It should be noted that the shadow elimination layer 600 serves as a shield to prevent devices such as the metal bridge 300 from being observed by the user from the outside.
[0029] Please refer to Figure 2 , in one embodiment, a protective structure of a touch screen further includes a metal trace 700, and the metal trace 700 is electrically connected to the ITO electrode 200.
[0030] It should be noted that multiple metal traces 700 are provided for electrical connection to the ITO electrode 200.
[0031] The solutions of the present application have been described in detail with reference to the accompanying drawings above. In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily essential to the present application. In addition, it can be understood that the steps in the method embodiments of the present application can be adjusted, combined, and deleted according to actual needs, and the modules in the device embodiments of the present application can be combined, divided, and deleted according to actual needs.
[0032] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skilled in the art in the technical field to understand the embodiments disclosed herein.
Claims
1. A protective structure for a touch screen, characterized in that, Comprising: A glass substrate; An ITO electrode disposed on the glass substrate; A metal bridge disposed on the ITO electrode; A first protection component including a first insulating layer, a first protective layer and a second protective layer, the first insulating layer is disposed on the ITO electrode, the first protective layer is disposed on the ITO electrode, the first protective layer is connected to the first insulating layer, and the second protective layer is disposed on the ITO electrode; A second protection component including a second insulating layer and a third protective layer, the second insulating layer is disposed on the metal bridge, and the third protective layer is disposed on the second insulating layer.
2. The protective structure of the touch screen according to claim 1, characterized in that, The first protective layer and the second protective layer are parallel to each other.
3. The protective structure of the touch screen according to claim 1, wherein, Further comprising a shadow elimination layer, one end of the shadow elimination layer is disposed on the ITO electrode, and the other end of the shadow elimination layer is disposed on the glass substrate.
4. The protective structure of the touch screen according to claim 3, wherein, The length of the shadow elimination layer is the same as the length of the glass substrate.
5. The protective structure of the touch screen according to claim 1, characterized in that, Further comprising a metal trace, and the metal trace is electrically connected to the ITO electrode.
6. The protective structure of the touch screen according to claim 4, characterized in that, The shadow elimination layer has a rectangular cross-sectional structure.
7. The protective structure of the touch screen according to claim 1, characterized in that, The glass substrate has a rectangular cross-sectional structure.
8. The protective structure of the touch screen according to claim 1, characterized in that, The thickness of the first protective layer is the same as the thickness of the second protective layer.
9. The protective structure of the touch screen according to claim 1, characterized in that, The first protective layer has a rectangular cross-sectional structure.
10. The protective structure of the touch screen according to claim 4, characterized in that, The shadow elimination layer and the glass substrate are parallel to each other.