2.5 D OGS touch screen structure

Abstract

The utility model discloses a 2.5 D OGS touch screen structure which comprises a cover plate and a touch sensing function layer, the cover plate comprises a cover plate body and edge buffer strips, arc-shaped faces are formed on the edge buffer strips, and the edge buffer strips are arranged on the peripheral edges of the cover plate body; the touch sensing function layer is arranged on one side face of the cover plate. According to the 2.5 D OGS touch screen structure, the cover plate is divided into the two parts including the cover plate body and the edge buffering strip, the arc-shaped face is arranged on the edge buffering strip, after the edge buffering strip and the cover plate body are combined, the required 2.5 D cover plate appearance is formed, and the 2.5 D appearance design of an OGS touch screen is achieved; and meanwhile, the falling buffering effect can be achieved through the buffering effect of the edge buffering strips, and therefore the risk that the cover plate is broken due to impact force is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of touch screen production, in particular to a 2.5D OGS touch screen structure. Background Art

[0002] With the rapid development of technology, touch screen technology has become an indispensable human-computer interaction method for modern electronic products and is widely used in intelligent terminals such as smart phones and tablet computers. Among them, in order to make the touch screen thinner and lighter, the touch screen is usually made into an OGS (One glass solution, integrated touch control) structure, that is, all the traces and patterns on the touch sensing functional layer are directly made on the cover plate of the touch screen. Generally, limited by the manufacturing process and the fact that both sides of the large glass substrate have been strengthened, the outer shape of the OGS touch screen cover plate is generally not recommended to have a 2.5D effect (the middle part of the cover plate is flat, and the edge part is an arc-shaped 2.5D design structure), because the edge of the 2.5D touch screen cover plate structure is relatively fragile, and the edge is easy to contact the ground when dropped, resulting in the edge being more likely to break when dropped.

[0003] In view of the above, a 2.5D OGS touch screen structure is proposed, which can not only achieve the 2.5D design of the OGS touch screen, but also reduce the risk of the edge of the OGS touch screen breaking when dropped. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a 2.5D OGS touch screen structure, which can not only achieve the 2.5D design of the OGS touch screen, but also reduce the risk of the edge of the OGS touch screen breaking when dropped.

[0005] The purpose of the utility model is realized by the following technical solutions:

[0006] A 2.5D OGS touch screen structure includes: a cover plate and a touch sensing functional layer. The cover plate includes a cover plate body and an edge buffer strip. An arc surface is formed on the edge buffer strip, and the edge buffer strip is arranged on the four peripheral edges of the cover plate body; the touch sensing functional layer is arranged on one side surface of the cover plate.

[0007] In one embodiment, the cover plate is a microcrystalline glass cover plate.

[0008] In one embodiment, the edge buffer strip is a plastic buffer strip, and the plastic buffer strip is connected to the cover plate body through an adhesive.

[0009] In one embodiment, the adhesive is an epoxy adhesive.$

[0010] In one embodiment, the plastic buffer strip is a transparent plastic buffer strip.

[0011] In one embodiment, the plastic buffer strip is a black plastic buffer strip.

[0012] In one embodiment, a black border ink layer is provided on one side of the cover plate, and the black border ink layer surrounds the display area of the cover plate.

[0013] In one embodiment, a DLC scratch-resistant coating is provided on the cover plate.

[0014] In one embodiment, the touch sensing functional layer includes an ITO pattern and metal traces. The ITO pattern and the metal traces are provided on one side of the cover plate, and the metal traces are connected to the ITO pattern. A flexible circuit board is bonded and connected to the metal traces.

[0015] In one embodiment, an SIO2 protective layer is further included, and the SIO2 protective layer covers the touch sensing functional layer.

[0016] Compared with the prior art, the present utility model has at least the following advantages:

[0017] The 2.5D OGS touch screen structure of the present utility model forms the required 2.5D cover plate shape by splitting the cover plate into two parts, including a cover plate body and an edge buffer strip, and an arc surface is provided on the edge buffer strip. After the edge buffer strip and the cover plate body are combined, the 2.5D shape design of the OGS touch screen can be realized; at the same time, the buffer effect of the edge buffer strip can also play a role in buffering against drops, thereby reducing the risk of the cover plate being broken due to impact force. 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 to be used in the embodiments will be briefly introduced below.

[0019] Figure 1 It is a front view structural schematic diagram of the 2.5D OGS touch screen structure in an embodiment of the present utility model;

[0020] Figure 2 It is a stacked structural schematic diagram of the 2.5D OGS touch screen structure in an embodiment of the present utility model;

[0021] Figure 3 It is a stacked structural schematic diagram of the 2.5D OGS touch screen structure in another embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings.

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 As shown, a 2.5D OGS touch screen structure 10 includes a cover plate 100 and a touch sensing functional layer 200. The cover plate 100 includes a cover plate body 110 and an edge buffer strip 120. An arc surface is formed on the edge buffer strip 120, and the edge buffer strip 120 is arranged on the four peripheral edges of the cover plate body 110. The touch sensing functional layer 200 is arranged on one side surface of the cover plate 100.

[0024] It should be noted that the cover plate 100 is split into two parts, including the cover plate body 110 and the edge buffer strip 120, and an arc surface is arranged on the edge buffer strip 120. Then, after the edge buffer strip 120 and the cover plate body 110 are combined, the required 2.5D outer shape of the cover plate 100 is formed to realize the 2.5D outer shape design of the OGS touch screen; at the same time, the buffer function of the edge buffer strip 120 can also play a role in buffering the drop, thereby reducing the risk of the cover plate 100 being broken due to the impact force.

[0025] In one embodiment, the cover plate 100 is a microcrystalline glass cover plate 100. The microcrystalline cover plate 100 is an inorganic non-metallic material with a unique structure and excellent performance, and at the same time has the superior properties of glass and ceramics, and has good mechanical strength, scratch resistance, good feel, not easy to break and other advantages. Therefore, it can further increase the strength of the cover plate 100, avoid the cover plate 100 from being broken and damaged, and improve the quality and reliability of the OGS touch screen.

[0026] In one embodiment, the edge buffer strip 120 is a plastic buffer strip, and the plastic buffer strip is connected to the cover plate body 110 through an adhesive. Compared with glass, the plastic has a softer material. By arranging a plastic buffer strip on the edge of the cover plate body 110, when the OGS touch screen drops and impacts, the plastic buffer strip can play a buffering role to avoid the problem that the cover plate body 110 is damaged due to force.

[0027] Preferably, the adhesive is an epoxy adhesive. The epoxy adhesive has the advantages of high strength, durability, excellent chemical corrosion resistance, high temperature resistance and so on. Therefore, it can ensure the bonding firmness and stability between the edge buffer strip 120 and the cover plate body 110, and improve the service life of the cover plate 100.

[0028] In one embodiment, the plastic buffer strip is a transparent plastic buffer strip. That is to say, the plastic buffer strip can be selected as a transparent plastic buffer strip according to the color of the cover body 110 to ensure the consistency of the product appearance effect. In another embodiment, the plastic buffer strip is a black plastic buffer strip. That is to say, in combination with the shape design of the product, a black plastic buffer strip is selected. At the same time, when the touch screen is in the off state, the use of a black plastic buffer strip can improve the integrated black effect of the touch screen.

[0029] Further, a black border ink layer 130 is provided on one side of the cover plate 100, and the black border ink layer 130 surrounds the display area of the cover plate 100. The black border ink layer 130 functions as light-shielding decoration. For example, through the black border ink layer 130, the traces on the touch sensing functional layer 200 can be blocked to prevent the internal traces of the touch screen from being observed by the naked eye.

[0030] Please refer to Figure 3 As shown, in one embodiment, a DLC (diamond-like carbon) anti-scratch coating 140 is provided on the cover plate 100. The DLC anti-scratch coating 140 has high hardness, high wear resistance and excellent corrosion resistance. Therefore, it can further improve the anti-scratch effect of the cover plate 100, so as to further improve the appearance quality and service life of the OGS touch screen.

[0031] Specifically, the touch sensing functional layer 200 includes an ITO (indium tin oxide) pattern and metal traces. The ITO pattern and metal traces are provided on one side of the cover plate 100, and the metal traces are connected to the ITO pattern. A flexible circuit board is bonded and connected to the metal traces. The metal traces are arranged around the four sides of the ITO pattern, and the touch sensing function of the OGS touch screen is realized through the cooperation of the metal traces and the ITO pattern. Among them, the metal traces are molybdenum metal traces.

[0032] Please refer to Figure 3 As shown, in one embodiment, the OGS touch screen structure 10 further includes a SIO2 (silicon dioxide) protective layer 300, and the SIO2 protective layer 300 covers the touch sensing functional layer 200. The SIO2 protective layer 300 is formed on the cover plate 100 by means of coating. At the same time, the SIO2 protective layer 300 plays a role of isolating and protecting the touch sensing functional layer 200 to prevent foreign objects in the outside world from damaging the touch sensing functional layer 200 during the production process.

[0033] Please refer to Figure 3As shown, in one embodiment, an IM anti-reflection layer 400 is further disposed between the cover plate 100 and the touch sensing functional layer 200. The IM anti-reflection layer 400 is also known as an anti-reflection film or a refractive index matching film. Through the IM anti-reflection film, the touch sensing functional layer 200 (such as an ITO pattern) has an anti-reflection effect, so that the ITO pattern inside the touch screen can be prevented from being observed by the human eye through the cover plate 100, thereby improving the overall visual effect of the touch screen.

[0034] The above embodiments only represent several embodiments of the present invention, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A 2.5D OGS touch screen structure, characterized in that, Comprising: A cover plate, the cover plate including a cover plate body and an edge buffer strip, an arc surface being formed on the edge buffer strip, and the edge buffer strip being disposed on the four peripheral edges of the cover plate body; And A touch sensing functional layer, the touch sensing functional layer being disposed on one side surface of the cover plate.

2. The 2.5D OGS touch screen structure according to claim 1, wherein The cover plate is a microcrystalline glass cover plate.

3. The 2.5D OGS touch screen structure according to claim 1, characterized in that, The edge buffer strip is a plastic buffer strip, and the plastic buffer strip is connected to the cover plate body through an adhesive.

4. The 2.5D OGS touch screen structure according to claim 3, characterized in that, The adhesive is an epoxy adhesive.

5. The 2.5D OGS touch screen structure according to claim 3, characterized in that, The plastic buffer strip is a transparent plastic buffer strip.

6. The 2.5D OGS touch screen structure according to claim 3, characterized in that, The plastic buffer strip is a black plastic buffer strip.

7. The 2.5D OGS touch screen structure according to claim 1, characterized in that, A black border ink layer is disposed on one side surface of the cover plate, and the black border ink layer is disposed around the display area of the cover plate.

8. The 2.5D OGS touch screen structure according to claim 1, characterized in that, A DLC scratch-resistant coating is provided on the cover plate.

9. The 2.5D OGS touch screen structure according to claim 1, characterized in that, The touch sensing functional layer includes an ITO pattern and metal traces, the ITO pattern and the metal traces being disposed on one side surface of the cover plate, and the metal traces being connected to the ITO pattern, and a flexible circuit board being bound and connected to the metal traces.

10. The 2.5D OGS touch screen structure according to claim 9, characterized in that, It further includes a SIO2 protective layer, and the SIO2 protective layer covers the touch sensing functional layer.

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