阅读说明：本技术 一种防眩光虚拟感知触控屏及其对应的制备方法 (Anti-dazzle virtual perception touch screen and corresponding preparation method thereof ) 是由 应金兵 曾信达 吴克坚 沈励 于 2021-07-05 设计创作，主要内容包括：一种防眩光虚拟感知触控屏及其对应的制备方法。本发明提供了一种防眩光虚拟感知触控屏,其将防眩光的薄膜置ITO膜层的相对外表面,即兼顾了防眩光膜结构的特性,又兼具虚拟感知触控屏的偶极作用,其通过虚拟技术产生一种实体触控屏,其适用于智能和虚拟技术发展的需求。其包括：透明基体；第一硬化层；ITO薄膜组件,ITO薄膜组件上的图案根据设定制作而成；防眩光膜；所述透明基体的第二表面上设置ITO薄膜组件,所述ITO薄膜组件的第二表面覆合有第一硬化层,所述第一硬化层的第二表面设置有防炫光膜。(An anti-dazzle virtual perception touch screen and a corresponding preparation method thereof. The invention provides an anti-dazzle virtual perception touch screen, wherein an anti-dazzle film is arranged on the opposite outer surface of an ITO film layer, so that the characteristics of the anti-dazzle film structure are considered, the dipole effect of a virtual perception touch screen is achieved, an entity touch screen is generated through a virtual technology, and the anti-dazzle virtual perception touch screen is suitable for the requirements of intelligent and virtual technology development. It includes: a transparent substrate; a first hardened layer; the pattern on the ITO thin film component is manufactured according to the setting; an anti-glare film; the second surface of transparent base member sets up ITO film unit on the surface, ITO film unit's second surface covers has first sclerosis layer, the second surface on first sclerosis layer is provided with prevents dazzling membrane.)

1. An anti-glare virtual perception touch screen, comprising:

a transparent substrate;

a first hardened layer;

the pattern on the ITO thin film component is manufactured according to the setting;

an anti-glare film;

the second surface of transparent base member sets up ITO film unit on the surface, ITO film unit's second surface covers has first sclerosis layer, the second surface on first sclerosis layer is provided with prevents dazzling membrane.

2. The anti-glare virtual perception touch screen according to claim 1, wherein: the second surface of the anti-glare film is covered with a second hardened layer.

3. The anti-glare virtual perception touch screen according to claim 1 or 2, wherein: the transparent matrix is optical plate glass, a PET film or PMMA.

4. A preparation method of an anti-dazzle virtual perception touch screen is characterized by comprising the following steps:

a. manufacturing a virtual touch film by printing a transparent substrate, and forming an ITO film assembly and a first hardened layer on the second surface of the transparent substrate;

b. and manufacturing the anti-glare film on the second surface of the first hardened layer through vacuum magnetron sputtering coating.

5. The method for preparing an anti-glare virtual perception touch screen according to claim 1, further comprising the steps of:

c. and performing surface hardening treatment on the second surface of the anti-glare film.

6. The method for preparing an anti-glare virtual perception touch screen according to claim 4, wherein the method comprises the following steps: in the step a, the specific operation is as follows,

a1, using a transparent base body as a base material, printing an ITO film on PET, and forming a set pattern on the ITO film to form an ITO film assembly; the virtual touch film is different from a pure ITO film, the requirement on the positioning accuracy only needs to be met within the range of a touch point, and the positioning accuracy is not high in an ITO Sensor, so that the whole manufacturing process and time can be greatly shortened by finishing the manufacturing of the ITO film by a printing method at one time, the ITO film component manufactured by printing can meet the experience of virtual reality, the ITO film component manufactured by the printing method is short in process, high in efficiency, low in equipment investment, easy to ensure the yield of film forming, and more importantly, the expected target can be easily realized;

a2, curing the ITO plasma of the ITO film assembly;

a3, carrying out surface hardening treatment on the transparent substrate with the cured ITO film assembly, and coating a layer of hardening agent on the second surface of the ITO film assembly to form a base film;

a4, ultraviolet hardening the base film coated with the hardening agent to form a first hardened layer.

7. The method for preparing an anti-glare virtual perception touch screen according to claim 4, wherein the method comprises the following steps: in the step b, the specific operation is as follows,

and manufacturing the anti-dazzle structure film by adopting a vacuum magnetron sputtering coating technology. The transparent base member that will have ITO film assembly and first sclerosis layer sends into vacuum environment, under vacuum state, adopts the second surface on the first sclerosis layer of vacuum bombardment method roughness, generates anti-dazzle membrane, and anti-dazzle membrane once accomplishes under vacuum environment.

8. The method for preparing an anti-glare virtual perception touch screen according to claim 7, wherein the method comprises the following steps: and the manufacturing equipment in the step b adopts a magnetic control vacuum continuous coating machine.

9. The method for preparing an anti-glare virtual perception touch screen according to claim 5, wherein the method comprises the following steps: in the step c, the concrete operation is as follows,

c1, hardening the surface of the transparent substrate which is manufactured with the anti-glare film, and coating a layer of hardener on the second surface of the anti-glare film to form a base film;

c2, ultraviolet hardening the base film coated with the hardening agent.

10. The method for preparing an anti-glare virtual perception touch screen according to claim 4, wherein the method comprises the following steps: printing of the ITO film assembly in step a1 forms the gold finger area of the transparent substrate, and finally, the electrodes of the external FPC are adhered to the gold finger area.

Technical Field

The invention relates to the technical field of touch screens, in particular to an anti-dazzle virtual sensing touch screen and a preparation method of the anti-dazzle virtual sensing touch screen.

Background

With the emergence of intelligent and virtual technologies, new requirements are put forward on the feeling of the traditional touch screen, and the touch screen has the advantages of sensitive touch control, accurate control, strong visual sense and sensory entity feeling to the virtual environment. The touch screen is disturbed by glare under the environment glare, and when the environment light is strongly irradiated, the glare appears on the touch screen under a certain irradiation angle, so that the touch screen capable of preventing the glare is urgently needed to be found, and the touch screen also needs to be combined with the requirements of intelligence and virtual technology.

Disclosure of Invention

In order to solve the problems, the invention provides an anti-glare virtual perception touch screen, wherein an anti-glare film is arranged on the opposite outer surface of an ITO film layer, so that the characteristics of the anti-glare film structure are considered, the anti-glare film has the dipole effect of a virtual perception touch screen, an entity touch screen is generated through a virtual technology, and the anti-glare virtual perception touch screen is suitable for the requirements of intelligent and virtual technology development.

An anti-glare virtual perception touch screen, comprising:

a transparent substrate;

a first hardened layer;

the pattern on the ITO thin film component is manufactured according to the setting;

an anti-glare film;

an ITO film assembly is arranged on the second surface of the transparent substrate, a first hardened layer is covered on the second surface of the ITO film assembly, and an anti-glare film is arranged on the second surface of the first hardened layer;

the first surface is in particular a relatively inwardly disposed surface of each film or component, the second surface is in particular a relatively outwardly disposed surface of each film or component, the relatively inwardly disposed surface is in particular disposed towards the window side, and the relatively outwardly disposed surface is in particular disposed towards the body side.

It is further characterized in that:

a second hardened layer covers the second surface of the anti-glare film;

the transparent matrix is optical plate glass, a PET film or PMMA.

A preparation method of an anti-dazzle virtual perception touch screen is characterized by comprising the following steps:

a. manufacturing a virtual touch film by printing a transparent substrate, and forming an ITO film assembly and a first hardened layer on the second surface of the transparent substrate;

b. and manufacturing the anti-glare film on the second surface of the first hardened layer through vacuum magnetron sputtering coating.

The method has the advantages of simple operation, easy control of consistency, suitability for large-scale manufacture and controllable cost.

It is further characterized in that: c. and performing surface hardening treatment on the second surface of the anti-glare film.

It is further characterized in that:

in the step a, the specific operation is as follows,

a1, using a transparent base body as a base material, printing an ITO film on PET, and forming a set pattern on the ITO film to form an ITO film assembly; the virtual touch film is different from a pure ITO film, the requirement on positioning accuracy only needs to be met in the range of a touch point, and the positioning accuracy is not high by an ITO Sensor, so that the whole manufacturing process and time can be greatly shortened by finishing the manufacturing of the ITO film by a printing method at one time, and the ITO film component manufactured by printing can meet the experience of virtual reality;

a2, curing the ITO plasma of the ITO film assembly;

a3, carrying out surface hardening treatment on the transparent substrate with the cured ITO film assembly, and coating a layer of hardening agent on the second surface of the ITO film assembly to form a base film;

a4, ultraviolet hardening the base film coated with the hardening agent to form a first hardened layer.

In the step b, the specific operation is as follows, and the anti-dazzle structure film is manufactured by adopting a vacuum magnetron sputtering coating technology. Sending the transparent substrate with the ITO film assembly and the first hardened layer into a vacuum environment, and roughening the second surface of the first hardened layer by adopting a vacuum bombardment method in a vacuum state to generate an anti-glare film which is finished at one time in the vacuum environment;

the manufacturing equipment of the step b adopts a magnetic control vacuum continuous coating machine;

in the step c, the concrete operation is as follows,

c1, hardening the surface of the transparent substrate which is manufactured with the anti-glare film, and coating a layer of hardener on the second surface of the anti-glare film to form a base film;

c2, ultraviolet hardening the base film coated with the hardening agent.

It is still further characterized in that:

printing the ITO film assembly in the step a1 to form a golden finger area of a transparent substrate, and finally adhering an external FPC electrode to the golden finger area;

before the steps a2, b, c2 are carried out, electrode terminal areas are reserved.

After the touch screen is adopted, the touch electrode part (ITO film component) and the anti-glare film are arranged on the same transparent substrate, so that the compact structure of the whole touch screen is ensured; the whole virtual touch screen is simple in structure, few in manufacturing operation steps, easy to control in the manufacturing process and suitable for quantitative production; the relative surface of ITO rete is put to its film with anti-dazzle, has compromise the characteristic of anti-dazzle membrane structure promptly, has had the dipole effect of virtual sense touch screen concurrently again, and it produces an entity touch screen through virtual technique, and it is applicable to the demand of intelligence and virtual technological development.

Drawings

FIG. 1 is a schematic cross-sectional cut-away view of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic diagram showing the electrostatic relationship between human touch and a screen:

FIG. 4 is a schematic diagram of the relationship between human touch and screen static electricity;

FIG. 5 is a second schematic diagram illustrating the relationship between human touch and electrostatic discharge of the panel;

the names corresponding to the sequence numbers in the figure are as follows:

transparent base member 1, ITO film assembly 2, first sclerosis layer 3, anti-dazzle membrane 4, second sclerosis layer 5.

Detailed Description

An anti-glare virtual perception touch screen, see fig. 1 and 2: the anti-glare film comprises a transparent substrate 1, a first hardened layer 3, an ITO thin film component 2 and an anti-glare film 4, wherein patterns on the ITO thin film component 2 are manufactured according to setting;

an ITO film assembly 2 is arranged on the second surface of the transparent substrate 1, a first hardened layer 3 is covered on the second surface of the ITO film assembly 2, and an anti-glare film 4 is arranged on the second surface of the first hardened layer 3;

the first surface is in particular a relatively inwardly disposed surface of each film or component, the second surface is in particular a relatively outwardly disposed surface of each film or component, the relatively inwardly disposed surface is in particular disposed towards the window side, and the relatively outwardly disposed surface is in particular disposed towards the body side.

In specific implementation, the second surface of the anti-glare film 4 is covered with a second hardened layer 5;

the transparent substrate 1 is specifically optical flat glass, a PET film or PMMA.

In the embodiment, the transparent substrate 1 is a PET film.

Virtual touch implementation of text virtual touch screen

The electrostatic relationship between the human touch and the screen panel of the virtual touch screen is shown in fig. 3-5. The uppermost layer of the screen and the finger are non-conductive media. The ITO thin film layer under the screen board is added with direct current voltage, and when a finger presses down, a finger region and a finger photocopy region of the screen board below form a capacitive coupling polar plate relation by paying attention to not the whole screen board. Thus, the skin cutin of human finger contacting the screen and the outer layer of the screen of the ITO layer form a tiny electrostatic field. The voltage applied by the screen plate can be adjusted, and the finger is connected with the ground through the human body. The human body is equivalent to an electrolyte, so that the cutin of the finger in the pressing area of the screen board is polarized by an electric field, and the tiny electric field generates an electrostatic force F for the finger_{electrostatic}. When a finger slides on the screen, the cutin of the finger cuticle generates a friction force F with the surface of the screen_frictionElectrostatic force acts on the finger, so that the finger generates a touch feeling of a real environment. The magnitude of the electrostatic force can be calculated by the following formula:

the formula parameters have the following meanings

Tg of 1 μm air gap

ε 0 vacuum dielectric constant

Epsi-s finger dielectric constant (stratum corneum)

ε p hardening layer dielectric constant

Ts is the thickness of skin cutin of finger

Tp thickness of hardened layer

V: ═ V _ s human body electrostatic voltage

V is the voltage supplied to the ITO thin film layer electrode of the touch screen, and the magnitude can be set through an implantation program, so that the magnitude of the electrostatic force can be set. Through the electrostatic force of different sizes, can produce the frictional force of different sizes, make the finger can feel the touch experience of different objective entities. And then, a virtual perception touch screen is formed by matching with different objects and visual perception of different shapes of the display screen.

The relationship between the frictional force and the electrostatic force is shown below

F_friction＝-μF_{electrostatic}

An electric model of the electrostatic relationship between human touch and the screen panel of the virtual touch screen is shown in FIG. 3, and the relationship from a finger to the touch screen panel is equivalent to the relationship formed by connecting 3 capacitors in series, so that the total capacitor C_TAnd the relation between each part of the capacitor satisfies

And a capacitor

Electrostatic force F_{electrostatic}Is that

I.e. the electrostatic force is equal to the voltage drop in the direction of the screen of the electrostatic voltage between the finger and the touch screen. The relation of the combined capacitance can finally be obtained as the following equation

Due to the dielectric constant ε of air₀Approximately equals 1, so the above formula becomes

Once the size and material of the touch screen are determined, the above formula V is the only variable, and the friction coefficient mu of the surface of the touch screen is also determined, so that the electrostatic force F can be changed by adjusting the voltage V_{electrostatic}While changing the sliding friction F between the finger and the screen surface_frictionThe size of (2). According to the mechanics principle, the surface friction force F of an object_frictionIs composed of

v is the sliding rate vector and | v | is the sliding rate modulus. μ is the coefficient of friction. The friction force F can thus be determined by adjusting the voltage V_frictionI.e., the intensity of the virtual tactile sensation. The friction force can be adjusted according to the experience degree of an operator in application, and virtual experience of the operator on the touch of an objective object is realized.

A preparation method of an anti-dazzle virtual perception touch screen comprises the following steps:

a. manufacturing a virtual touch film by printing a transparent substrate, and forming an ITO film assembly and a first hardened layer on the second surface of the transparent substrate;

b. and manufacturing the anti-glare film on the second surface of the first hardened layer through vacuum magnetron sputtering coating.

The method has the advantages of simple operation, easy control of consistency, suitability for large-scale manufacture and controllable cost.

c. And performing surface hardening treatment on the second surface of the anti-glare film.

The preparation method corresponding to the specific embodiment is as follows:

a1, using a PET film with the transparent optical transmittance not less than 92% as a base material, cleaning and removing static electricity on the surface needing film forming, blowing the surface of the base material by using a static air gun, and then placing the prepared mask plate on the PET. The middle of the mask plate is a hollow square frame. The thickness of the mask plate determines the thickness of the ITO film layer. The thickness of the mask plate manufactured in the embodiment is 0.05 mm. And coating the ITO slurry on the mask plate. The coating speed is not too fast, and bubbles generated by gas on the bottom surface are prevented or eliminated;

and a2, curing after coating. Baking the ITO slurry in a baking oven at 80 ℃ for 10 minutes to fully volatilize the ITO slurry diluent;

a3, making a layer of hardening protection on the surface of the solidified ITO to form a first hardened layer, specifically coating a layer of Hard coating hardening agent. The thickness is controlled by a mask plate, and the thickness is 0.05 mm;

a4, then curing by ultraviolet irradiation, wherein the target hardness is not lower than 6H, and enough hardness ensures the subsequent preparation of an AG film (anti-glare film);

in the step b, the specific operation is as follows, a vacuum magnetron sputtering coating technology is adopted to manufacture the anti-glare structure film, the transparent substrate with the ITO film assembly and the first hardened layer is sent into a vacuum environment, the second surface of the first hardened layer is roughened by adopting a vacuum bombardment method in a vacuum state to generate the anti-glare film, and the anti-glare film is completed in one step in the vacuum environment; specifically, the operation is performed by turning on the power supply and then supplying argon gas into the anode chamber when the degree of vacuum in the environment is higher than 5E-6 Torr. The anode cavity is internally provided with a strong magnetic pole pair, and the direction of the magnetic field is mutually vertical to the direction of the electrode in space. The anode emits electrons from the cathode plate to the anode plate under the action of an electric field force. Because the anode cavity is internally provided with a strong magnetic field, electrons can do spiral forward motion under the action of a vertical electric field force after being emitted. Thus, the electrons repeatedly impact the argon atoms filled in the cavity at high speed, so that the nonpolar argon atoms are distorted into polar argon atom dipole plasmas. At this time the center of mass of the argon atom and its electrode center no longer coincide as in the neutral state. Becoming a polarized plasma particle. Dipole plasmas have dipole moments, which automatically select the direction of the electrode moment under the influence of an electric field force. Because the anode plate is provided with a plurality of small holes, pressure difference exists between the inside and the outside of the cavity, and simultaneously, due to the combined action of electric field force and magnetic field force in the cavity, the argon atom plasma obtains energy and flies out of the cavity. Typically, the substrate is configured in a low potential environment, i.e., the substrate carrier is connected to zero potential. The system constructs a dual power environment. A negative bias plate is arranged on the back of the substrate, and the argon atom plasma automatically selects the positive pole to the negative bias plate under the action of dipole moment. Due to the action of high-voltage electric field force, the plasma obtains great kinetic energy, and is accelerated to bombard the surface of the substrate at high speed to bombard the material on the surface of the substrate in the size scale of plasma particles. The hardened layer of the substrate faces the direction of bombardment. The result is a microscopically stacked structure of the bombarded areas of the PET substrate. Because a mask plate with a slit window is constructed in front of the active substrate, the substrate is moved forward at a constant speed under the control of the system during bombardment. This ensures that the entire bombardment process is performed uniformly and continuously in one operation. Thereby ensuring uniformity and integrity of the distribution of the stacked structure of the anti-glare roughened surface made of the substrate. The depth of bombardment can be determined by passing a film thickness gauge through the line, with the recipe targeting 1/4 λ wavelengths. Based on a light source with a wavelength of 550 nm. The target depth of the protocol was 137.5 nm. Taking 137nm +/-15 nm;

the manufacturing equipment of the step b adopts a magnetic control vacuum continuous coating machine;

the structure of the vacuum bombardment system in the step b is shown in Chinese patent ZL 201920939508.6 and the patent name of the etching system for preparing the anti-glare glass is 'an etching system for preparing the anti-glare glass', and the etching system comprises a plane cation etching electrode, a mask plate mask, a negative bias electrode protection plate, a negative bias electrode plate, 2 direct current power supplies and 1 argon gas supply system. The purity of the introduced argon gas is not lower than 99.999 percent. The argon flow is regulated by a mass flow controller MFC. The DC working voltage provided by the DC power supply can not be lower than 400Vdc, and is preferably 400Vdc and 600Vdc through experiments, and the specific numerical value is determined according to the system size, the bombardment distance and the material of the base material. The bombardment power can be determined according to the size of the bombardment area, but the power density is ensured to be not lower than 150W/cm 2. The mask plate is provided with a rectangular window at the position right in front of the bombardment electrode. The length is slightly longer than the height of the substrate, and the width is 0.9 times of the width of the anode plate, which is used as a channel for providing bombardment.

c1, cleaning the surface of the anti-glare film by an electrostatic gun for the first time, removing surface attached particles, and then coating a layer of hardener on the second surface of the anti-glare film to form a base film; the thickness is controlled by a mask plate, and the thickness is 0.05 mm;

c2, ultraviolet hardening the base film coated with the hardening agent.

Printing the ITO film assembly in the step a1 to form a golden finger area of a transparent substrate, and finally adhering an external FPC electrode to the golden finger area;

before the steps a2, b, c2 are carried out, electrode terminal areas are reserved.

And (3) according to the searched theoretical value of the dielectric constant epsilon p of the PET material (experimental value 2.9-3.2), the static perception force of the surface of the virtual touch screen is obtained, and epsilon p is 3. The dielectric constant epsilon s of human body is equal to muscle/fat (56.0-66.2/11.2-12.7), and epsilon s is equal to 43. According to the examples, Ts is 0.01mm, Tp is 0.05 and Tg is 0.001 mm. The plate applied voltage V was set to 5 Vdc. Finger contact area 0.5cm²Substituting into a formula. Calculating the electrostatic force F_{electrostatic}，

The friction coefficient mu is 0.01, and the sliding friction force F of the finger on the surface of the screen panel is calculated_friction， F_friction＝-μF_{electrostatic}＝-0.01*0.375＝-3.75*10^-3N

After the touch screen is adopted, the touch electrode part (ITO film component) and the anti-glare film are arranged on the same transparent substrate, so that the compact structure of the whole touch screen is ensured; the whole virtual touch screen is simple in structure, few in manufacturing operation steps, easy to control in the manufacturing process and suitable for quantitative production; the relative surface of ITO rete is put to its film with anti-dazzle, has compromise the characteristic of anti-dazzle membrane structure promptly, has had the dipole effect of virtual sense touch screen concurrently again, and it produces an entity touch screen through virtual technique, and it is applicable to the demand of intelligence and virtual technological development.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description of the embodiments is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.