Touch screen and electronic device

Abstract

The utility model relates to a kind of touch screen and electronic equipment, touch screen includes shell, display screen, ITO color film and control piece, wherein: shell includes display surface, and installation slot is equipped on display surface;Display screen is embedded in installation slot;ITO color film is attached to display surface, ITO color film includes transparent part and at least one key block, transparent part is correspondingly arranged with display screen, at least one key block is located in transparent part;AG film is attached to the side of ITO color film away from display screen;Control piece is located in shell, and is electrically connected with display screen and ITO color film.The utility model is attached to AG film on ITO color film, can solve water wave problem, while also can guarantee the display effect of touch screen is good, picture is clear and bright;And the process of attaching AG film on ITO color film compared with the process of ITO color film surface frosted, cost is low and process is more simple, help to improve generation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of display screen technology, and in particular to a touch screen and electronic device. Background Technology

[0002] Currently, touchscreens in kitchen appliances and electronic devices (such as mobile phones, smartwatches, and fitness trackers) are basically made by bonding a layer of ITO material for touch control onto tempered glass, and sensing changes in capacitance on the ITO material through a touch chip on a circuit board. However, the process of bonding ITO material to tempered glass is relatively complex and delicate, resulting in high manufacturing costs for touchscreens.

[0003] To reduce manufacturing costs, patent publication number CN222462290U discloses a touch screen that uses ITO material to make ITO color film separately, which eliminates the need to process ITO material onto tempered glass, thereby simplifying the process and reducing costs.

[0004] However, using ITO color film can easily cause water ripples, which in turn affect the display effect of the touch screen. To eliminate water ripples, additional manufacturing processes are required, such as frosting the surface of the ITO color film and printing raised dots on the ITO color film, which in turn increases manufacturing costs. Summary of the Invention

[0005] In order to solve at least one of the technical problems mentioned above, this utility model proposes a touch screen and an electronic device.

[0006] According to some embodiments of the present invention, a touch screen is provided, comprising: a housing including a display surface having a mounting groove; a display screen embedded in the mounting groove; an ITO color film attached to the display surface, the ITO color film including a transparent portion and at least one button block, the transparent portion being correspondingly disposed with the display screen, and at least one button block being disposed in the transparent portion; an AG film attached to the side of the ITO color film away from the display screen; and a control component disposed within the housing and electrically connected to the display screen and the ITO color film.

[0007] Based on the above solution, by attaching an AG film to the ITO color film, the water ripple problem can be solved while ensuring a good display effect and a clear and bright screen on the touch screen. Furthermore, the process of attaching an AG film to the ITO color film is lower in cost and simpler than the process of frosting the surface of the ITO color film, which helps to improve production efficiency.

[0008] In some possible implementations, the touchscreen further includes an AG film composite spacer disposed between the display screen and the ITO color film.

[0009] Based on the above solution, the AG film composite gasket is a transparent gasket with anti-glare properties. When placed between the display screen and the ITO color film, it can eliminate the water ripple effect on the side of the ITO color film facing the display screen, eliminate the need for printing raised dots on the ITO color film, reduce costs, and help improve production efficiency.

[0010] In some possible implementations, the AG film composite gasket includes a transparent gasket and an AG film material layer, the AG film material layer being disposed on the side of the AG film composite gasket close to the ITO color film.

[0011] Based on the above solution, the AG film material layer is disposed on the side of the AG film composite gasket close to the ITO color film, which can prevent the ITO color film from directly contacting the transparent gasket and forming water ripples.

[0012] In some possible implementations, the AG film material layer includes an AG film sheet attached to the surface of the transparent pad, or AG film particles sprayed onto the surface of the transparent pad, or AG film particles sputtered onto the surface of the transparent pad.

[0013] Based on the above scheme, the AG film composite gasket can be an integral component, or it can be obtained by attaching an AG film to a transparent gasket.

[0014] In some possible implementations, an optically transparent adhesive is provided between the AG film and the ITO color film.

[0015] Based on the above solution, optically transparent adhesive is used to further ensure that no water ripples are generated between the AG film and the ITO color film, while improving the stability of the connection structure.

[0016] In some possible implementations, the ITO color film may further include a color portion disposed around the transparent portion.

[0017] Based on the above solution, different colors and graphics can be set on the color section to meet the different needs of electronic devices and improve the aesthetics of the touch screen.

[0018] In some possible implementations, the display surface is further provided with a light-transmitting groove corresponding to the color section, and the touch screen further includes a light source disposed in the housing and arranged corresponding to the light-transmitting groove, the light source being electrically connected to the control component.

[0019] Based on the above solution, the light emitted by the light source can pass through the light-transmitting groove and illuminate the color part of the ITO color film, so that the user can clearly see the graphics on the color part.

[0020] In some possible implementations, the AG film completely covers the ITO color film.

[0021] Based on the above solution, the display effect can be guaranteed, and it can also help to detect water ripples in time and repair them in a timely manner.

[0022] In some possible implementations, the AG film has a transmittance of 85% or more and a haze of 10% or less.

[0023] Based on the above solutions, the brightness and clarity of the display screen can be improved, thus enhancing the user experience.

[0024] According to some other embodiments of the present invention, an electronic device is provided, including the touch screen described in any of the above embodiments.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the present invention.

[0026] Other features and aspects of the present invention will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0027] To more clearly illustrate the technical solutions and advantages in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This diagram shows an overall three-dimensional structure of a touch screen according to an embodiment of the present invention;

[0029] Figure 2 A cross-sectional schematic diagram of a touch screen according to an embodiment of the present invention is shown;

[0030] Figure 3 A partially enlarged cross-sectional view of a touchscreen according to an embodiment of the present invention is shown;

[0031] Figure 4 A partial perspective structural schematic diagram of the housing according to an embodiment of the present utility model is shown;

[0032] Figure 5 A schematic diagram of the structure of an ITO color filter according to an embodiment of the present invention is shown.

[0033] In the picture,

[0034] 1. Housing; 11. Display surface; 12. Mounting slot; 13. Light transmission slot; 2. Display screen; 3. ITO color film; 31. Transparent part; 32. Color part; 33. Button block; 4. AG film; 5. AG film composite gasket. Detailed Implementation

[0035] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0037] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0038] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0039] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0040] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0041] To facilitate understanding of this utility model, some technical terms in the embodiments are explained below:

[0042] ITO: Indium Tin Oxide, is an n-type wide bandgap semiconductor material that can be used as a transparent conductive layer for liquid crystal display electrodes and OLED anodes;

[0043] AG film: Anti-Glare, is a key optical material that reduces reflected light interference and improves visual clarity through surface treatment technology;

[0044] PET: Polyethylene terephthalate, abbreviated as PET or PEIT, commonly known as polyester resin;

[0045] PC: Polycarbonate (abbreviated as PC), also known as PC plastic.

[0046] Currently, touchscreens in electronic devices such as mobile phones, smartwatches, and fitness trackers typically consist of a layer of ITO material integrally laminated under tempered glass for touch control. However, the process of integrally laminating ITO material onto tempered glass is complex and delicate, resulting in high manufacturing costs for touchscreens. To reduce manufacturing costs, patent CN222462290U discloses a touchscreen solution that fabricates an ITO color film separately from the ITO material. This eliminates the need to process the ITO material onto tempered glass, thus simplifying the process and reducing costs.

[0047] However, using ITO color film can easily lead to water ripples, which in turn affect the display effect of the touch screen. On the one hand, when the ITO color film area is large, water ripples can appear due to the deformation of the plastic shell when the ITO color film is bonded to the transparent component. Although the water ripples can be eliminated by frosting the surface of the ITO color film, this will affect the clarity of the color screen, making the entire picture blurry and dark. On the other hand, a transparent sheet is placed between the ITO color film and the display screen. Since the transparent sheet is mirrored, water ripples will also appear when the ITO color film contacts the mirror surface of the transparent sheet. That is, water ripples will appear on the side of the ITO color film facing the display screen. In order to eliminate these water ripples, an additional printing process of printing raised dots is required during actual production. This increases the number of processes and costs. Moreover, the consistency of the printing process itself is not very good and can be affected by the aging and cleanliness of the stencil and other components.

[0048] To solve the above technical problems, such as Figures 1-5 As shown, this utility model embodiment provides a touch screen to simplify the process and reduce costs.

[0049] Please refer to Figures 1-5 Specifically, the touch screen includes a housing 1, a display screen 2, an ITO color film 3, and a control component (not shown in the figure), wherein: the housing 1 includes a display surface 11, and a mounting groove 12 is provided on the display surface 11; the display screen 2 is embedded in the mounting groove 12; the ITO color film 3 is attached to the display surface 11, and the ITO color film 3 includes a transparent part 31 and at least one button block 33, the transparent part 31 is correspondingly arranged with the display screen 2, and at least one button block 33 is provided in the transparent part 31; an AG film 4 is attached to the side of the ITO color film 3 away from the display screen 2; the control component is located in the housing 1 and is electrically connected to the display screen 2 and the ITO color film 3. Based on the above structure, the display screen 2 in the touch screen can be displayed through the transparent part 31 on the ITO color film 3. When the user presses the button block 33 located on the transparent part 31, the capacitance value at the button block 33 will change accordingly. The controller can read the change in capacitance value of the ITO color film 3 and convert it into a corresponding signal to send a corresponding instruction to the display screen 2 to control the display content of the display screen 2. Thus, while ensuring the normal display of the display screen 2, the screen touch effect of the display screen 2 can be achieved.

[0050] In this embodiment, an AG film 4 is placed on top of the ITO color filter 3. The refractive index of the AG film 4 is similar to that of the cover glass, PC sheet, and PET of the ITO color filter 3, all between 1.4 and 1.5. Furthermore, the AG film 4 has an anti-glare effect, thus solving the problem of water ripples on the side of the ITO color filter 3 away from the display screen 2. Since the AG film 4 is transparent, compared to directly frosting the surface of the ITO color filter 3, using the AG film 4 ensures that the screen clarity is not affected and the brightness of the image is maintained. In addition, the process of attaching the AG film 4 to the ITO color filter 3 is simpler and easier to operate than the process of frosting the surface of the ITO color filter 3, and the process cost is lower, facilitating production and assembly, thereby reducing the cost of the touchscreen.

[0051] This embodiment does not limit the bonding method between AG film 4 and ITO color film 3. That is, AG film 4 can be directly pasted to ITO color film 3, or AG film 4 and ITO color film 3 can be installed in the same frame to achieve bonding.

[0052] In some embodiments, to ensure image quality, the AG film 4 is connected to the ITO color film 3 via an optically transparent adhesive, meaning an optically transparent adhesive is provided between the AG film 4 and the ITO color film 3. The advantage of using the optically transparent adhesive is that it reduces reflection or total internal reflection at the interface between the AG film 4 and the ITO color film 3, thereby ensuring optical performance. The type of optically transparent adhesive is not limited; it can be an OCA adhesive film or a liquid adhesive. During the process of attaching the AG film 4 to the ITO color film 3, air bubbles can be removed using vacuum equipment or other devices.

[0053] This embodiment does not limit the specific selection of the AG film 4, that is, it does not limit parameters such as the transparency, haze, and thickness of the AG film 4. It should be understood that in order to ensure the clarity and brightness of the image, the AG film 4 should be selected with high transparency and low haze. There are no special requirements for the thickness. Generally, the thickness can be selected at around 0.125mm (this thickness is also the common thickness of ordinary PET film). If it does not affect the touch and a specific transmittance is required, a thicker film can also be selected. However, if the thickness is too small, creases are likely to appear during transportation and processing.

[0054] In some embodiments, in order to balance the display effect and the water ripple removal performance, the transmittance of the AG film 4 is greater than or equal to 85%, and the haze of the AG film 4 is less than or equal to 10%.

[0055] In some preferred embodiments, the AG film 4 has a transmittance of 95% or more and a haze of 2% or less.

[0056] In some specific embodiments, the touch screen is used in home appliance color film products, especially integrated black fully off products (the panel and the surrounding area appear as one black after being turned off), the transmittance of the AG film 4 is equal to 85%, and the haze of the AG film 4 is less than 10%.

[0057] In this invention, the AG film 4 should cover at least the entire area of ​​the glass window of the touchscreen. Based on this design, the water ripples can be detected regardless of whether the display inside the window is lit or not. Even when the display inside the window is not lit, the water ripples can still be detected by the reflection of external light. Based on the above solution, the touchscreen can detect water ripples immediately during factory testing and subsequent use, facilitating timely repair.

[0058] In a preferred embodiment, the AG film 4 can completely cover the ITO color film 3.

[0059] In this invention, the touchscreen also includes an AG film composite gasket 5, which is disposed between the display screen 2 and the ITO color filter 3. The AG film composite gasket 5 is a transparent sheet with anti-glare function, used to solve the problem of water ripples on the side of the ITO color filter 3 facing the display screen 2. In related technologies, a mirror-like transparent sheet is used between the display screen 2 and the ITO color filter 3. Water ripples occur when the ITO color filter 3 contacts the mirror surface. To eliminate these water ripples, raised dots need to be printed on the ITO color filter 3. This embodiment uses the AG film composite gasket 5 to replace the mirror-like transparent sheet, which solves the water ripple problem and also eliminates a printing process, reducing production costs.

[0060] In this embodiment, the AG film composite gasket 5 includes a transparent gasket and an AG film 4 material layer, with the AG film 4 material layer disposed on the side of the AG film composite gasket 5 closest to the ITO color film 3. The transparent gasket can be a PC sheet, a glass sheet, or an acrylic component.

[0061] In some preferred embodiments, the above-mentioned AG film 4 material layer can be provided on both sides of the transparent gasket.

[0062] Based on the above embodiments, the AG film 4 material layer further includes an AG film 4 sheet attached to the surface of the transparent gasket, or AG film 4 particles sprayed onto the surface of the transparent gasket, or AG film 4 particles sputtered onto the surface of the transparent gasket. That is, the AG film composite gasket 5 can be a single finished plate, i.e., AG film 4 particles are sprayed or sputtered onto the transparent gasket; or, the AG film composite gasket 5 can also be a laminated composite plate, i.e., a layer of AG film 4 sheet is attached to the transparent gasket.

[0063] In this invention, the display screen 2 can be configured as a TFT screen, LED screen or OLED screen to suit different types of screens.

[0064] In some embodiments, the control unit may include a circuit board and a touch chip and a microcontroller unit disposed on the circuit board. The touch chip can read the capacitance value of the ITO color filter 3 in real time. When the touch chip reads that the capacitance value of the ITO color filter 3 has changed, the touch chip converts the capacitance value change into a corresponding signal and transmits the signal to the microcontroller unit. After receiving the signal, the microcontroller unit sends a corresponding instruction to the display screen 2 to control the display content of the display screen 2.

[0065] In some embodiments, the ITO color film 3 further includes a color portion 32 disposed around the transparent portion 31. Different colors and patterns can be set on the color portion 32 according to actual needs to meet different requirements of the electronic device and improve the aesthetics of the touchscreen. The color portion 32 can partially or fully surround the transparent portion 31. Furthermore, when there are two or more displays 2, the number of transparent portions 31 corresponds one-to-one with the number of displays 2. The specific arrangement of the transparent portions 31 and the color portion 32 can be adjusted according to the actual structure of the touchscreen; this embodiment of the invention does not impose specific limitations here.

[0066] In some embodiments, the display surface 11 is further provided with a light-transmitting groove 13 corresponding to the color section 32. The touch screen also includes a light source (not shown) disposed within the housing 1 and corresponding to the light-transmitting groove 13, and the light source is electrically connected to the control unit. The light emitted by the light source can pass through the light-transmitting groove 13 and illuminate the color section 32 of the ITO color film 3, allowing the user to clearly see the graphics on the color section 32, further enhancing the user experience. The light source can be an LED or other component mounted on a circuit board that emits light toward the light-transmitting groove 13.

[0067] This utility model embodiment also provides an electronic device, including the aforementioned touchscreen. The electronic device can be any device with touchscreen functionality, such as a mobile phone, smartwatch, or wristband; this utility model embodiment does not impose specific limitations here.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A touchscreen, characterized in that, include: The housing includes a display surface, on which a mounting groove is provided; The display screen is embedded in the mounting slot; An ITO color film is attached to the display surface. The ITO color film includes a transparent portion and at least one button block. The transparent portion is correspondingly disposed to the display screen, and at least one button block is disposed in the transparent portion. An AG film is attached to the side of the ITO color film away from the display screen; and, The control unit is located inside the housing and is electrically connected to the display screen and the ITO color filter.

2. The touchscreen according to claim 1, characterized in that, The touch screen also includes an AG film composite gasket, which is disposed between the display screen and the ITO color film.

3. The touchscreen according to claim 2, characterized in that, The AG film composite gasket includes a transparent gasket and an AG film material layer, wherein the AG film material layer is disposed on the side of the AG film composite gasket close to the ITO color film.

4. The touchscreen according to claim 3, characterized in that, The AG film material layer includes AG film sheets attached to the surface of the transparent gasket, AG film particles sprayed onto the surface of the transparent gasket, or AG film particles sputtered onto the surface of the transparent gasket.

5. The touchscreen according to claim 1, characterized in that, An optically transparent adhesive is provided between the AG film and the ITO color film.

6. The touchscreen according to claim 1, characterized in that, The ITO color film also includes a color portion disposed around the transparent portion.

7. The touchscreen according to claim 6, characterized in that, The display surface is also provided with a light-transmitting groove corresponding to the color section. The touch screen also includes a light source disposed inside the housing and arranged corresponding to the light-transmitting groove. The light source is electrically connected to the control component.

8. The touchscreen according to claim 1, characterized in that, The AG film completely covers the ITO color film.

9. The touchscreen according to claim 1, characterized in that, The AG film has a transmittance of ≥85% and a haze of ≤10%.

10. An electronic device, characterized in that, Including the touchscreen as described in any one of claims 1-9.

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