Puncture-resistant touch screen function sheet

Abstract

The utility model discloses a puncture-resistant touch screen function piece, and belongs to the technical field of touch screen function pieces. A puncture-resistant touch screen function piece comprises a touch screen body, the touch screen body comprises a glass substrate, an ITO conducting layer is arranged on the outer wall of the front portion of the glass substrate, a second buffer strip adheres to the outer wall of the rear portion of the glass substrate, and a protection piece is arranged in front of the glass substrate and the ITO conducting layer and comprises first tempered glass. When in use, the glass fiber layer and the hot melt liquid crystal fiber layer in the protective piece enhance the overall firmness, the puncture resistance is improved by cooperating with the transparent ceramic coating, the tempered film I and the tempered film II, and the transparent silica gel in the protective piece is buffered when collided, so that the impact force transmitted to the ITO conductive layer can be weakened, the stability and the reliability are guaranteed, and the service life of the protective piece is prolonged. And the buffer strips II made of silica gel are adhered to the periphery of the glass substrate, so that the impact on the glass substrate and the ITO conducting layer can be relieved when the glass substrate is impacted by falling, and the damage risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to touch screen function piece technical field more specifically, relate to a kind of puncture-resistant touch screen function piece. BACKGROUND

[0002] TP touch function piece is the important component of capacitive touch screen (TP), mainly play the role of sensing touch operation and convert it into electrical signal, capacitive sensing principle is to utilize human body electric field, when finger touches screen, coupling capacitance between finger and the conductive layer (usually ITO, namely indium tin oxide) on screen will form, due to the approach of finger, will change the capacitance value of conductive layer specific position, signal detection and processing: electrode array on screen will detect this capacitance change, by measuring the change amount of capacitance, controller can accurately calculate the position coordinates of touch point. Then, these position information will be transmitted to the processor of electronic device, to realize corresponding operation, such as click, slide, zoom, etc., TP touch function piece is usually composed of ITO conductive layer, glass substrate, protective film and metal lead.

[0003] The existing puncture-resistant touch screen function piece mostly has the significant defect that the protection mechanism is relatively single. Generally speaking, only rely on protective film to build protective barrier for conductive layer, and in the type selection of protective film, generally tend to adopt tempered film, however, practice proves that this single protection strategy relying on tempered film far cannot meet the actual high requirements, tempered film has certain degree of hardness and anti-scratching ability, but its protective performance has obvious limitations when coping with the puncture of sharp object, when touch screen unfortunately encounters strong impact from external sharp object such as pen tip, metal debris, etc., tempered film is often difficult to withstand such concentrated and powerful impact force, and is prone to rupture or be pierced, thereby exposing the conductive layer below to danger, and further interfering with its normal capacitive sensing function, eventually leading to abnormal touch operation of touch screen or even complete failure, which brings great inconvenience and trouble to user's daily use, and seriously affects the use experience and work efficiency.

[0004] Furthermore, the performance of the existing touch screen function piece in the aspect of buffering protection performance is also not satisfactory. In daily use scenarios, accidental dropping of equipment occurs from time to time. Since there is lack of sufficient buffering design, when touch screen function piece is subjected to instantaneous impact force generated by dropping, the impact force will be rapidly conducted along the glass substrate to the entire structure inside. The conductive layer on the glass substrate is the first to suffer, and since there is no effective buffering structure to absorb and disperse the impact force, the conductive layer will be deformed, ruptured or have line breakage under the action of powerful impact, so that the capacitive sensing performance of touch screen is greatly reduced, which seriously affects its normal touch response and signal transmission function, and greatly reduces the reliability and durability of the product.

[0005] In view of this, we propose a kind of puncture-resistant touch screen functional sheet. Content of the utility model

[0006] 1. The technical problem to be solved

[0007] The utility model discloses a kind of puncture-resistant touch screen functional sheet, to solve the problem proposed in the above background art.

[0008] 2. Technical solution

[0009] A kind of puncture-resistant touch screen functional sheet, including touch screen main body, the touch screen main body includes glass substrate, ITO conductive layer is provided in the glass substrate front outer wall, the glass substrate and ITO conductive layer front are provided with protective piece, the protective piece includes toughened glass one.

[0010] Preferably, the glass substrate both sides edge front is provided with slot, multiple the slot inner wall is provided with buffer strip one

[0011] Preferably, the toughened glass one front outer wall transparent ceramic coating, the toughened glass one rear outer wall is provided with glass fiber layer.

[0012] Preferably, the glass fiber layer rear outer wall is adhered with transparent silicon glue, the transparent silicon glue rear outer wall is adhered with buffer strip three.

[0013] Preferably, multiple the buffer strip three is matched with the slot respectively, the buffer strip three and buffer strip one size are same.

[0014] Preferably, the transparent silicon glue rear outer wall is sequentially adhered with hot melt liquid crystal fiber layer and toughened glass two, the toughened glass two rear outer wall is adhered with static adsorption layer.

[0015] 3. Advantage

[0016] Compared with prior art, the utility model has the advantages that: when using, the transparent ceramic coating of the toughened glass one front outer wall can utilize its crystal structure to have higher density and hardness, and together with the toughened film one, to build the preliminary protective layer, resist sharp object puncture, and the glass fiber layer and hot melt liquid crystal fiber layer arranged in the protective piece can also enhance the overall firmness of the protective piece, combined with transparent ceramic coating, toughened film one and toughened film two, to improve its puncture resistance, and the transparent silicon glue in the protective piece can also play the role of buffer when encountering sharp object impact, by the buffering effect, to further weaken the impact force that can be transmitted to the internal structure of ITO conductive layer, reduce the damage risk to ITO conductive layer and other key parts, to protect the stability and reliability of touch screen functional sheet when facing external sharp object physical impact.

[0017] Secondly, the buffer strip two is closely adhered to the periphery of the glass substrate, the buffer strip two is made of silica gel material with high elasticity and energy absorption characteristics, when the touch function piece is accidentally subjected to drop impact, the buffer strip two can rapidly elastically deform, rely on the internal molecular structure change to absorb and disperse the huge kinetic energy generated in the dropping process, convert the instantaneous impact force into the elastic potential energy of the buffer strip two itself and gradually dissipate, in this way, the buffer strip two effectively alleviates the direct effect of the impact force generated by dropping on the glass substrate and the ITO conductive layer and other key components thereon, greatly reduces the risk of function piece damage caused by dropping of the touch function piece, significantly improves the reliability and durability of the touch function piece in the daily use process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0019] Fig. 2 It is the A structure schematic diagram of the utility model;

[0020] Fig. 3 It is the B structure schematic diagram of the utility model;

[0021] Mark explanation in drawing: 100, glass substrate;110, ITO conductive layer;120, slot;130, buffer strip one;140, buffer strip two;200, toughened glass one;210, transparent ceramic coating;220, glass fiber layer;230, transparent silica gel;240, buffer strip three;250, hot melt liquid crystal fiber layer;260, toughened glass two;270, static adsorption layer. DETAILED DESCRIPTION

[0022] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not indicative or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly and specifically limited.

[0024] In the description of the utility model, it is necessary to explain that, unless there are explicit provisions and limitations, the terms "mounting", "setting", "sleeving / interfacing", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according of the specific circumstances.

[0025] Please refer to Figs. 1-3 The utility model provides a technical scheme:

[0026] A kind of puncture-resistant touch screen function piece, including touch screen main body, touch screen main body includes glass substrate 100, ITO conductive layer 110 is provided in glass substrate 100 front outer wall, glass substrate 100 four around outer wall is adhered with buffer strip two 140, glass substrate 100 and ITO conductive layer 110 front is provided with protection piece, and protection piece includes toughened glass one 200.

[0027] In some embodiments: ITO conductive layer 110 is a kind of transparent conductive material, plating on glass substrate 100, form conductive electrode array, electrode array is usually divided into two directions of transverse direction and longitudinal direction, the capacitance change at intersection point can determine the position of touch point, glass substrate 100 as support and carrier, provide stable adhesion foundation for ITO conductive layer, glass substrate 100 has good transparency and mechanical strength, can guarantee the normal work and service life of touch screen, its metal lead is used to connect ITO conductive layer and external circuit, the detected capacitance change signal is transmitted to controller for processing, metal lead needs to have good conductivity and reliability, to ensure the accurate transmission of signal, metal lead is located at the top position of ITO conductive layer 110.

[0028] Specifically, glass substrate 100 two side edges front is provided with slot 120, a plurality of slot 120 inner wall is provided with buffer strip one 130.

[0029] In some embodiments: buffer strip one 130, buffer strip two 140 and buffer strip three 240 are all silica gel material, to provide good buffering effect when being subjected to impact.

[0030] Further, toughened glass one 200 front outer wall transparent ceramic coating 210, toughened glass one 200 rear outer wall is provided with glass fiber layer 220.

[0031] Still further, glass fiber layer 220 rear outer wall is adhered with transparent silica gel 230, transparent silica gel 230 rear outer wall is adhered with buffer strip three 240.

[0032] In some embodiments: the transparent silica gel 230 can play a buffering effect when it is hit by a sharp object to some extent, which can further greatly weaken the impact force that may be transmitted to the internal structure of the ITO conductive layer 110, reducing the risk of damage to the ITO conductive layer 110 and other key parts.

[0033] Furthermore, the plurality of buffer bars three 240 are respectively matched with the grooves 120, and the buffer bars three 240 and the buffer bars one 130 have the same size. This facilitates buffering while facilitating subsequent guiding and installation.

[0034] It is worth noting that the rear outer wall of the transparent silica gel 230 is sequentially bonded with a thermofusible liquid crystal fiber layer 250 and a tempered glass two 260, and the rear outer wall of the tempered glass two 260 is bonded with an electrostatic adsorption layer 270.

[0035] In some embodiments: common transparent ceramic coating 210 materials include aluminum oxide, zirconium oxide, etc. The aluminum oxide transparent ceramic coating has the advantages of high hardness, strong wear resistance, good chemical stability, etc. Its crystal structure is tight, which can effectively block the penetration of sharp objects, and at the same time has high transparency to visible light, which will not significantly affect the display effect of the touch screen. For example, in some high-end smart phone screens or industrial touch screens, the protective ability of the screen when it is touched by a sharp object such as a key or a metal tool can be greatly enhanced, preventing screen scratches and penetration, and the performance can remain stable for a long time while resisting environmental factors such as sweat and dust. The zirconium oxide transparent ceramic coating also has excellent hardness and toughness. Its refractive index is similar to that of glass, which can enhance the bonding force between the coating and the tempered film one 200 while ensuring good optical transparency. When the touch screen function piece is impacted by external force, the zirconium oxide coating not only resists penetration, but also deforms by its own toughness to absorb part of the energy, playing a buffering protection role and further reducing the risk of damage to the internal conductive layer and other structures, effectively prolonging the service life of the touch screen and maintaining its normal working performance. The glass fiber layer 220 has high strength and high modulus characteristics, and forms a tight molecular arrangement after high-temperature melting and high-speed stretching, has excellent tensile and anti-deformation ability, and builds a solid network with an interwoven structure to effectively disperse the penetration force and resist local stress. The thermofusible liquid crystal fiber layer 250 relies on special physical properties to maintain good mechanical properties in different temperature environments. The two cooperate with each other and the transparent ceramic coating 210, the tempered glass one 200 and the tempered glass two 260 to form a comprehensive protection system, greatly improving the penetration resistance, and building a solid defense line for the touch screen function piece to resist the invasion of sharp objects from the outside world. The glass fiber layer 220 and the thermofusible liquid crystal fiber layer 250 are both transparent and belong to the prior art.

[0036] Working principle: in use, the transparent ceramic coating 210 of the tempered glass one 140 in front of the outer wall can utilize its crystal structure to have high density and hardness, and together with the tempered film one 200, a preliminary protective layer is formed to resist sharp object penetration. The glass fiber layer 220 and the thermally fusible liquid crystal fiber layer 250 inside the protective piece can also enhance the overall firmness of the protective piece. Combined with the transparent ceramic coating 210, the tempered film one 200 and the tempered film two 260, the puncture resistance is improved. The transparent silica gel 230 inside the protective piece can also play a buffering role when encountering sharp objects. With the buffering effect, the impact force that may be transmitted to the internal structure of the ITO conductive layer 110 can be greatly weakened, reducing the damage risk to the ITO conductive layer 110 and other key parts, and ensuring the stability and reliability of the touch screen function sheet when facing physical impact from external sharp objects. Secondly, the buffer strip two 140 is tightly bonded around the glass substrate 100. The buffer strip two 140 is made of silica gel material with high elasticity and energy absorption characteristics. When the touch function sheet is accidentally subjected to a falling impact, the buffer strip two 140 can quickly elastically deform, rely on its internal molecular structure change to absorb and disperse the huge kinetic energy generated during the falling process, and convert the instantaneous impact force into the elastic potential energy of the buffer strip two 140 and gradually dissipate. In this way, the buffer strip two 140 effectively relieves the direct effect of the impact force generated by the falling on the glass substrate and the ITO conductive layer 110 and other key components thereon, greatly reducing the risk of function sheet damage caused by the falling of the touch function sheet, significantly improving the reliability and durability of the touch function sheet in the daily use process, reducing the maintenance cost and the probability of use interruption caused by accidental falling, and providing a strong guarantee for the stable operation of the touch function sheet.

[0037] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A puncture-resistant touch screen functional sheet comprising a touch screen main body, characterized by: The touch screen body includes a glass substrate (100), the front outer wall of the glass substrate (100) is provided with an ITO conductive layer (110), the four outer walls of the glass substrate (100) are adhered with buffer strips two (140), the front of the glass substrate (100) and the ITO conductive layer (110) is provided with a protection piece, and the protection piece includes a tempered glass one (200).

2. The puncture-resistant touch screen functional sheet according to claim 1, wherein: The front of the two side edges of the glass substrate (100) is provided with a slot (120), and the inner wall of the plurality of slots (120) is provided with a buffer strip one (130).

3. The puncture-resistant touch screen functional sheet according to claim 2, wherein: The front outer wall of the tempered glass one (200) is provided with a transparent ceramic coating (210), and the rear outer wall of the tempered glass one (200) is provided with a glass fiber layer (220).

4. The puncture-resistant touch screen functional sheet according to claim 3, wherein: The rear outer wall of the glass fiber layer (220) is adhered with transparent silica gel (230), and the rear outer wall of the transparent silica gel (230) is adhered with a buffer strip three (240).

5. The puncture-resistant touch screen functional sheet according to claim 4, wherein: The plurality of buffer strips three (240) are matched with the slots (120) respectively, and the buffer strip three (240) and the buffer strip one (130) are the same in size.

6. The puncture-resistant touch screen functional sheet according to claim 5, wherein: The rear outer wall of the transparent silica gel (230) is sequentially adhered with a hot melt liquid crystal fiber layer (250) and a tempered glass two (260), and the rear outer wall of the tempered glass two (260) is adhered with an electrostatic adsorption layer (270).

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