Ultrathin touch display screen and intelligent household appliance

Abstract

The invention relates to the technical field of display screens and household appliances, in particular to an ultrathin touch display screen and an intelligent household appliance. According to the technical scheme, the device comprises an outer protection layer, a tactile feedback layer, a touch sensing and optical waveguide layer, a dynamic display modulation layer, an electrode driving layer, an interface connection layer, a substrate supporting layer and a graphene micro heat pipe layer which are sequentially stacked. Light touch induction is achieved through a photonic crystal metasurface structure, backlight-free display is achieved by modulating optical characteristics through a voltage-driven photonic crystal material, deep fusion of touch and display and an ultrathin structure are fundamentally achieved, the tactile feedback layer provides tactile sensation based on the inverse piezoelectric effect, and the touch sense is improved. And interference with optical touch control is avoided through the damping adhesive layer and time-sharing control. According to the intelligent household appliance, the display screen is integrated through an outer protection frame, a mixed heat dissipation mechanism for air cooling and liquid cooling and a protection mechanism containing tempered glass and buffer elements are arranged in the intelligent household appliance, and the surface of the household appliance is changed into an intelligent interaction center which is ultrathin, high in reliability and rich in interaction experience.

Description

Technical Field

[0001] This invention relates to the field of display screen and home appliance technology, and in particular to an ultra-thin touch display screen and smart home appliances. Background Technology

[0002] With the rapid development of IoT and smart home technologies, the intelligence level of home appliances is constantly improving. The traditional interaction methods of mechanical buttons and separate displays can no longer meet users' needs for a simple appearance, immersive experience, and integrated control. Integrating touch displays into the surface of home appliances has become a mainstream trend, which places extremely high demands on the thickness, integration, reliability, and interactive experience of the display.

[0003] Currently, most smart home appliances use touch displays based on traditional technology architectures, where the touch layer and display layer are physically separate modules assembled through stacking. This structure inevitably increases the overall thickness of the screen, fundamentally contradicting the slim and flat design philosophy pursued by home appliances. Furthermore, the separate structure introduces more optical interfaces, leading to reduced display brightness and touch sensitivity. There is also a risk of peeling between layers, affecting the long-term reliability of the product. Additionally, the resulting thicker modules make it difficult to seamlessly integrate with the simple, integrated industrial design language of home appliances. Moreover, traditional backlight display solutions consume more power and lack effective tactile feedback mechanisms, resulting in a limited interactive experience. Furthermore, the complex operating environment of home appliances, especially in kitchens and bathrooms where they face challenges such as high temperature, high humidity, and oil stains, makes conventional displays prone to blurring due to condensation or performance degradation and shortened lifespan due to internal heat.

[0004] Therefore, there is an urgent need for an innovative solution that can fundamentally solve the above problems, namely, to achieve the functional integration of touch and display rather than physical stacking, while achieving an ultra-thin form factor, and possessing excellent optical performance, reliable environmental durability and efficient thermal management capabilities, so as to meet the higher requirements of the next generation of smart home appliances for human-computer interaction interfaces. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background art by proposing an ultra-thin touch display screen and smart home appliances.

[0006] In a first aspect, this application provides an ultra-thin touch display screen, including an outer frame for assembling and integrating the display screen, and further comprising: The ultra-thin touch display module is housed within the outer frame of the screen; The ultra-thin touch display module includes, from the outside in, an outer protective layer, a haptic feedback layer, a touch sensing and optical waveguide layer, a dynamic display modulation layer, an electrode driving layer, an interface connection layer, a substrate support layer, and a graphene micro heat pipe layer, stacked sequentially from the outside in. The touch sensing and optical waveguide layer is directly integrated on the outer surface of the dynamic display modulation layer. The electrode driving layer is directly integrated on the inner surface of the dynamic display modulation layer through a deposition process. The interface connection layer is integrated on the surface of the substrate support layer and electrically connected to the electrode driving layer through fine metal traces. The graphene micro heat pipe layer is directly generated on the outer surface of the substrate support layer through a chemical vapor deposition process. The touch sensing and optical waveguide layer integrates a miniature infrared laser diode and a photodetector, and the leads of the miniature infrared laser diode and photodetector are electrically connected to the fine metal traces of the interface connection layer. The tactile feedback layer includes a transparent piezoelectric tactile feedback layer and an optically transparent adhesive layer. The optically transparent adhesive layer bonds the transparent piezoelectric tactile feedback layer between the outer protective layer and the touch sensing and optical waveguide layer.

[0007] Optionally, the touch sensing and optical waveguide layer is a photonic crystal metasurface structure, used to guide the infrared light emitted by the miniature infrared laser diode to propagate within the layer, and to detect changes in the optical path caused by touch through the photodetector.

[0008] Optionally, the dynamic display modulation layer is a voltage-driven photonic crystal metamaterial layer, whose optical properties are modulated by the electric field applied by the electrode driving layer to achieve image display.

[0009] Secondly, the present invention provides a smart home appliance, including the ultra-thin touch display screen described in the first aspect, and further including: an outer protective frame for fixing the display screen and an integrated back plate, wherein the outer frame is embedded inside the ultra-thin touch display screen module, the outer protective frame is fixedly connected to the back plate, an intelligent control module is installed inside the back plate and is electrically connected to the interface connection layer of the ultra-thin touch display screen module, and a bracket is installed at the bottom of the outer protective frame.

[0010] Optionally, the smart home appliance may also include: The protective mechanism is installed on the outer wall of the appliance's outer protective frame to protect the screen's outer frame and the ultra-thin touch display module; The protective mechanism includes tempered protective glass, which is attached to the outer protective layer. A spring sheet is fixedly connected to the rear side of the tempered protective glass, and one side of the outer wall of the spring sheet is fixedly connected to the outer wall of the screen's outer frame.

[0011] Optionally, the protective mechanism further includes a buffer pad and a reinforcing strip, both of which are engaged with the outer wall of the appliance's outer protective frame, and a spring sheet is provided between the buffer pad and the appliance's outer protective frame.

[0012] Optionally, the smart home appliance may also include: The heat dissipation mechanism is located inside the back panel to dissipate heat from the back panel and the ultra-thin touch display module; The heat dissipation mechanism includes a cooling fan, which is located inside the back panel. A dust filter is installed on one side of the outer wall of the cooling fan. The back panel has an exhaust hole one and an exhaust hole two inside the outer protective frame of the appliance.

[0013] Optionally, the smart home appliance may also include: The cooling mechanism, located inside the back panel, is used to cool the heat dissipation air. The cooling mechanism includes a coolant tank for storing coolant, which is installed on one side of the outer wall of the back plate. Two circulation pumps are installed on the top of the coolant tank, and each of the two circulation pumps has a delivery pipe fixed to its output end. The two delivery pipes are connected to a coolant circulation pipe, which is located inside the cooling fan.

[0014] Optionally, the cooling mechanism further includes heat dissipation fins for further cooling the air. The heat dissipation fins are disposed between the ultra-thin touch display module and the intelligent control module, providing both heat dissipation and further separation and support.

[0015] Optionally, the coolant tank is connected to the coolant circulation pipe via the delivery pipe and the circulation pump to form a circulation loop.

[0016] In summary, this application includes at least one of the following beneficial technical effects: This invention achieves a native fusion of photosensitive and electroluminescent displays by directly integrating touch sensing and optical waveguide layers into the dynamic display modulation layer. This fundamentally eliminates the traditional stacked structure of touch screen + display screen, greatly reducing module thickness and enabling seamless embedding into the surfaces of various home appliances, in line with the modern trend of integrated and simplified home appliance design.

[0017] Furthermore, the innovative haptic feedback layer in this invention simulates real touch through the inverse piezoelectric effect, and combined with specific damping materials and time-division control strategies, perfectly solves the inherent conflict between mechanical vibration and precision optical sensing. While providing immersive haptic feedback, it ensures high precision and reliability of touch positioning, greatly improving the intuitiveness of interaction and user experience.

[0018] Finally, the hybrid heat dissipation mechanism ensures the long-term stable operation of high-power components in a sealed environment; the multiple buffer protection mechanism can effectively absorb and buffer the impact forces from the front and sides, enabling the equipment to withstand the challenges of vibration, humidity and high temperature in complex environments such as kitchens, and significantly improving the overall durability of the machine. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of an ultra-thin touch display screen and smart home appliance according to the present invention is provided; Figure 2 This is a schematic diagram of the rear structure; Figure 3 This is a schematic diagram of the overall exploded structure; Figure 4 This is a schematic diagram of the exploded structure of an ultra-thin touch display module. Figure 5 This is a schematic diagram of the touch sensing and optical waveguide layer structure. Figure 6 This is a schematic diagram of the explosion-proof structure of the protective mechanism; Figure 7 This is a schematic diagram of the exploded structure of the backplate. Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the internal structure of the back panel; Figure 10 This is a schematic diagram of the haptic feedback layer structure; Figure 11 This is a schematic diagram of the graphene micro heat pipe layer structure.

[0020] Reference numerals: 1. Outer frame of the screen; 2. Ultra-thin touch display module; 201. Outer protective layer; 202. Touch sensing and optical waveguide layer; 2021. Miniature infrared laser diode; 2022. Photodetector; 203. Dynamic display modulation layer; 204. Electrode driving layer; 205. Interface connection layer; 206. Substrate support layer; 207. Haptic feedback layer; 2071. Transparent piezoelectric haptic feedback layer; 2072. Optically transparent adhesive layer; 208. Graphene micro heat pipe layer; 3. Home appliance 4. Protective Mechanism; 401. Tempered Protective Glass; 402. Spring Sheet 1; 403. Buffer Pad; 404. Reinforcing Strip; 405. Spring Sheet 2; 5. Heat Dissipation Mechanism; 501. Cooling Fan; 502. Dust Removal Screen; 503. Exhaust Hole 1; 504. Exhaust Hole 2; 6. Cooling Mechanism; 601. Coolant Tank; 602. Circulation Pump; 603. Delivery Pipe; 604. Coolant Circulation Pipe; 605. Heat Dissipation Fins; 7. Bracket; 8. Backplate; 801. Intelligent Control Module. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-5 As shown, the present invention proposes an ultra-thin touch display screen, including an outer screen frame 1 that supports and fixes the ultra-thin touch display screen module 2 and connects to the appliance casing to realize the assembly and integration of the display screen, and an ultra-thin touch display screen module 2 disposed within the outer screen frame 1 to integrate touch input and image display functions; as one embodiment, the ultra-thin touch display screen module 2 includes an outer protective layer 201, a haptic feedback layer 207, a touch sensing and optical waveguide layer 202, a dynamic display modulation layer 203, an electrode driving layer 204, an interface connection layer 205, a substrate support layer 206, and a graphene micro heat pipe layer 208, which are stacked sequentially from the outside to the inside; the outer protective layer 201 serves as the outermost physical barrier to prevent the delicate internal structure of the screen from being scratched, worn, or contaminated, while also requiring high optical transparency to avoid affecting The touch sensing and optical waveguide layer 202 enables display and touch control; the touch sensing and optical waveguide layer 202 guides infrared light to propagate within the layer to form a sensing network; the dynamic display modulation layer 203 is used to realize image display; the electrode driving layer 204 is used to provide a switch for display driving; the interface connection layer 205 is used to provide an electrical interface. The touch sensing and optical waveguide layer 202 is directly integrated on the outer surface of the dynamic display modulation layer 203; the electrode driving layer 204 is directly integrated on the inner surface of the dynamic display modulation layer 203 through a deposition process; the interface connection layer 205 is integrated on the surface of the substrate support layer 206 and is electrically connected to the electrode driving layer 204 through fine metal traces; the graphene micro heat pipe layer 208 is directly generated on the outer surface of the substrate support layer 206 through a chemical vapor deposition process. The dynamic display modulation layer 203 is a voltage-driven photonic crystal metamaterial layer. Its optical properties are modulated by the electric field applied by the electrode driving layer 204 to achieve image display. The ultra-thin touch screen is described in detail below: In this embodiment, the ultra-thin touch display module 2 is a highly integrated combination of photosensitive and electroluminescent display. Its touch sensing and optical waveguide layer 202 is a photonic crystal metasurface structure. When the user touches the outer protective layer 201, the touch point will disturb the light field and change the light path. This change is captured by the touch sensing and optical waveguide layer 202 and converted into an electrical signal, which is transmitted to the control unit through the wiring of the interface connection layer 205 to achieve precise touch positioning. Meanwhile, the electrode driving layer 204 applies a precise voltage to the dynamic display modulation layer 203 according to the display signal, driving the lattice structure or refractive index of the voltage-type photonic crystal metamaterial layer to change, thereby actively modulating its optical properties such as reflectivity or transmittance, realizing low-power image rendering without backlighting, achieving deep integration of touch and display, which is the foundation for achieving ultra-thin structure. In active heating mode, the graphene micro heat pipe layer 208 heats itself up quickly and evenly by applying current, thereby maintaining the screen surface temperature above the dew point, completely eliminating condensation and ensuring display clarity. In passive heat dissipation mode, it utilizes the extremely high planar thermal conductivity of graphene to quickly and evenly distribute the "hot spot" heat generated by the internal laser diode and driving circuit to the entire screen area, significantly improving heat dissipation efficiency by increasing the heat dissipation area, ensuring display consistency and extending device life.

[0023] like Figures 1-5 As shown, the touch sensing and optical waveguide layer 202 also includes a miniature infrared laser diode 2021 and a photodetector 2022 integrated inside the touch sensing and optical waveguide layer 202. In one embodiment, the leads of the miniature infrared laser diode 2021 and the photodetector 2022 are electrically connected to the fine metal traces of the interface connection layer 205. The miniature infrared laser diode 2021 emits invisible infrared detection light to form the light source of the touch sensing network. The photodetector 2022 receives and detects the infrared light signal disturbed by the touch event and converts it into an electrical signal. The touch sensing and optical waveguide layer 202 is a photonic crystal metasurface structure used to guide the infrared light emitted by the miniature infrared laser diode 2021 to propagate within the layer, and to detect changes in the optical path caused by touch through the photodetector 2022. The touch sensing and optical waveguide layer 202 is described in detail below: In this embodiment, the touch sensing and optical waveguide layer 202 serves as a photonic crystal metasurface structure, guiding the infrared light emitted by the miniature infrared laser diode 2021 to propagate within the layer, and detecting changes in the optical path caused by touch through the photodetector 2022, thereby achieving high-precision touch sensing.

[0024] like Figures 1-11As shown, the display screen also includes a haptic feedback layer 207 disposed between the outer protective layer 201 and the touch sensing and optical waveguide layer 202. In one embodiment, the haptic feedback layer 207 includes a transparent piezoelectric haptic feedback layer 2071 and an optically transparent adhesive layer 2072. The optically transparent adhesive layer 2072 bonds the transparent piezoelectric haptic feedback layer 2071 between the outer protective layer 201 and the touch sensing and optical waveguide layer 202. The haptic feedback layer 207 is described in detail below: In this embodiment, the transparent piezoelectric tactile feedback layer 2071 serves as the core actuator, operating based on the inverse piezoelectric effect. When the control unit applies a specific AC drive signal of 200-300Hz through the interface connection layer 205, it generates micron-level mechanical vibration perpendicular to the screen plane. The optically transparent adhesive layer 2072 serves as a key structure for vibration energy management, with its 0.1-2 The elastic modulus of MPa has been specially optimized to achieve bidirectional control in the vibration transmission path. In the direction towards the user, it acts as a vibration transmission medium to ensure that vibration energy is efficiently transmitted to the outer protective layer 201 to form a clear tactile sensation. In the direction towards the inside of the screen, it acts as a vibration damping isolation layer. Utilizing the internal friction of the viscoelastic material, the vibration energy transmitted to the touch sensor and optical waveguide layer 202 is attenuated to below the background noise level of the photodetector 2022. The control unit adopts a strict time-division working strategy, suspending all drive signal outputs during the touch signal acquisition time window to ensure that the photodetector obtains a pure light path change signal. Tactile feedback is activated only in a dedicated feedback window after touch confirmation. This achieves reliable coexistence of high-fidelity tactile feedback and high signal-to-noise ratio optical touch in the ultra-thin optical touch architecture.

[0025] like Figures 1-9 As shown, the present invention also provides a smart home appliance, including an outer shell of the whole machine, an appliance outer protective frame 3 that provides an aesthetically pleasing appearance and encapsulates all internal structures together, and a back plate 8 for installing and fixing heavy components such as a smart control module 801 and a cooling fan 501; in one embodiment, the screen outer frame 1 is embedded inside the ultra-thin touch display module 2, the appliance outer protective frame 3 is fixedly connected to the back plate 8, the smart control module 801 is installed inside the back plate 8 and is electrically connected to the interface connection layer 205 of the ultra-thin touch display module 2, and a bracket 7 is installed at the bottom of the appliance outer protective frame 3. The smart home appliance is described in detail below: In this embodiment, the smart home appliance uses an outer protective frame 3 and a back plate 8 to fix the ultra-thin touch display module 2. The screen outer frame 1 is embedded inside the module to ensure structural compactness and integrity. The back plate 8 integrates a smart control module 801, which acts as a processing hub. Through the interface connection layer 205, it directly drives the display screen and processes the touch signals transmitted from it, transforming the appliance's function control into an intuitive graphical interface for display and interaction. Users can complete all command inputs by directly touching the surface of the appliance, achieving a natural human-computer interaction experience where the appliance itself is the interface. The bracket 7 provides stable support, making the display screen the interaction hub of the appliance, combining aesthetics and functionality.

[0026] like Figure 1 , Figure 3 and Figure 6 As shown, the smart home appliance also includes a protective mechanism 4 that can absorb and buffer external impact energy to protect the fragile display module; as one implementation, the protective mechanism 4 is set on the outer wall of the appliance's outer protective frame 3 to protect the screen outer frame 1 and the ultra-thin touch display module 2. The protective mechanism 4 includes tempered protective glass 401, which is attached to the outer protective layer 201. A spring sheet 402 is fixedly connected to the rear side of the tempered protective glass 401. One side of the outer wall of the spring sheet 402 is fixedly connected to the outer wall of the screen outer frame 1. The spring sheet 402 is connected between the tempered protective glass 401 and the screen outer frame 1, and uses its elastic deformation to absorb the frontal impact force and prevent rigid transmission. The protective mechanism 4 also includes a buffer pad 403 and a reinforcing strip 404. Both the buffer pad 403 and the reinforcing strip 404 are engaged with the outer wall of the appliance's outer protective frame 3, and a spring sheet 405 is provided between the buffer pad 403 and the appliance's outer protective frame 3. The protection is described in detail below: In this embodiment, the protective mechanism 4 disperses impact energy through material elasticity and structural mechanics. The first layer of tempered protective glass 401 has high hardness to resist direct scratches and minor collisions. When subjected to a frontal impact, the impact force is transmitted through the glass to the spring sheet 402 on its back. This elastic element absorbs and buffers most of the impact energy through its own deformation, preventing stress from being directly transmitted to the fragile screen outer frame 1 and the ultra-thin touch display module 2 inside. For side compression or collisions, the buffer pad 403 undergoes elastic deformation under the synergistic action of the spring sheet 405 to provide cushioning. At the same time, the reinforcing strip 404 enhances the overall rigidity of the frame, resists deformation, and greatly improves the reliability of the whole machine in complex environments.

[0027] like Figure 1 , Figure 2 and Figure 7As shown, the smart home appliance also includes a heat dissipation mechanism 5 to control the heat generated by the smart control module 801 and the display drive circuit, and to prevent overheating from causing performance degradation or damage; as one embodiment, the heat dissipation mechanism 5 is disposed inside the back plate 8 to dissipate heat between the back plate 8 and the ultra-thin touch display module 2. The heat dissipation mechanism 5 includes a cooling fan 501, which is disposed inside the back plate 8. A dust filter 502 is installed on one side of the outer wall of the cooling fan 501. The back plate 8 has an exhaust port 503 and an exhaust port 504 respectively inside the appliance outer protective frame 3. The heat dissipation is described in detail below: In this embodiment, when the heat dissipation mechanism 5 is running, the heat dissipation fan 501 is first started to run, and the heat generated by the intelligent control module 801 and the display screen driving circuit in the back plate 8 is discharged through the air duct formed by the exhaust port 1 503 and the exhaust port 2 504. The dust removal net 502 prevents dust from accumulating and affecting the heat dissipation efficiency, which is aimed at the concentrated heat generated by high load operation.

[0028] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the heat dissipation mechanism 5 also includes a cooling mechanism 6 disposed inside the back plate 8 for cooling the heat dissipation air; in one embodiment, the cooling mechanism 6 includes a coolant tank 601 for storing coolant, the coolant tank 601 is installed on one side of the outer wall of the back plate 8, and two circulation pumps 602 are installed on the top of the coolant tank 601. The output ends of the two circulation pumps 602 are each fixed with a delivery pipe 603, and the two delivery pipes 603 are connected to a coolant circulation pipe 604, which is disposed inside the cooling fan 501; The cooling mechanism 6 also includes heat dissipation fins 605 for further dissipating heat from the air. The heat dissipation fins 605 are disposed between the ultra-thin touch display module 2 and the intelligent control module 801, and provide heat dissipation while further separating and supporting them. The coolant tank 601 is connected to the coolant circulation pipe 604 via the delivery pipe 603 and the circulation pump 602 to form a circulation loop. The cooling process is described in detail below: In this embodiment, when the cooling mechanism 6 is running, the coolant is driven by the circulation pump 602 to enter the coolant circulation pipe 604 from the coolant tank 601 through the circulation pump 602 and the delivery pipe 603. This pipe is placed in the air duct, and when it flows through, it can efficiently remove the heat in the air, which is equivalent to pre-cooling the heat dissipation airflow, greatly enhancing the overall heat exchange efficiency. At the same time, the heat dissipation fins 605 not only increase the heat dissipation area, but also provide a physical layer to isolate the hot areas of the display module and the control module, preventing heat interference. This achieves efficient heat dissipation in zones and ensures the long-term stable operation of each electronic component.

[0029] Specifically, the outer frame 1 supports and fixes the ultra-thin touch display module 2 and is connected to the appliance casing. The ultra-thin touch display module 2 includes an outer protective layer 201, a haptic feedback layer 207, a touch sensing and optical waveguide layer 202, a dynamic display modulation layer 203, an electrode driving layer 204, an interface connection layer 205, a substrate support layer 206, and a graphene micro heat pipe layer 28, which are stacked sequentially from the outside to the inside.

[0030] The touch sensing and optical waveguide layer 202 is directly integrated on the outer surface of the dynamic display modulation layer 203, which integrates a miniature infrared laser diode 2021 and a photodetector 2022. The electrode driving layer 204 is directly integrated on the inner surface of the dynamic display modulation layer 203 through a deposition process. The interface connection layer 205 is integrated on the surface of the substrate support layer 206 through a microfabrication process and is electrically connected to the electrode driving layer 204 through micro-metal traces. The graphene micro heat pipe layer 28 is directly generated on the outer surface of the substrate support layer 206 through a chemical vapor deposition process.

[0031] During touch and display operation, the infrared light emitted by the miniature infrared laser diode 2021 propagates within the touch sensing and optical waveguide layer 202 to form a touch sensing network. When the user touches the outer protective layer 201, the touch point disturbs the light field. The photodetector 2022 detects the change in the light path and converts it into an electrical signal, which is transmitted to the intelligent control module 801 via the interface connection layer 205 to achieve touch positioning. At the same time, the electrode driving layer 204 applies a precise voltage to the dynamic display modulation layer 203 according to the display signal, driving the lattice structure or refractive index of the voltage-type photonic crystal metamaterial layer to change, thereby achieving image display without backlight.

[0032] The tactile feedback layer 207 includes a transparent piezoelectric tactile feedback layer 2071 and an optically transparent adhesive layer 2072. When the intelligent control module 801 confirms a valid touch, it applies a 200-300Hz AC voltage signal to the transparent piezoelectric tactile feedback layer 2071 through the interface connection layer 205. This layer generates micron-level mechanical vibration based on the inverse piezoelectric effect. The optically transparent adhesive layer 2072 achieves bidirectional management of vibration energy with its elastic modulus of 0.1-2 MPa: it ensures that the vibration energy is effectively transmitted to the outer protective layer 201, and absorbs and attenuates the vibration transmitted to the touch sensing and optical waveguide layer 202. Combined with the time-division working strategy adopted by the control unit, the drive is paused during the touch signal acquisition window, realizing the reliable coexistence of tactile feedback and optical touch.

[0033] In active heating mode, the graphene micro heat pipe layer 28 heats itself evenly by applying current, maintaining the screen surface temperature above the dew point and eliminating condensation. In passive heat dissipation mode, it utilizes the extremely high planar thermal conductivity of graphene to quickly distribute the heat generated by the internal laser diode and driving circuit to the entire screen area, improving heat dissipation efficiency.

[0034] The smart home appliance uses an outer protective frame 3 to fix an ultra-thin touch screen module 2 to a back panel 8. An intelligent control module 801 is installed inside the back panel 8 and is electrically connected to an interface connection layer 205. The protective mechanism 4 includes tempered protective glass 401, a first spring sheet 402, a buffer pad 403, a reinforcing strip 404, and a second spring sheet 405, which disperse impact energy through material elasticity and structural mechanics. The heat dissipation mechanism 5 includes a cooling fan 501, a dust filter 502, a first exhaust vent 503, and a second exhaust vent 504, which control the heat generated by the intelligent control module 801 and the display drive circuit. The cooling mechanism 6 includes a coolant tank 601, a circulation pump 602, a delivery pipe 603, a coolant circulation pipe 604, and heat dissipation fins 605, which cool the air being dissipated.

[0035] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An ultra-thin touch display screen, comprising an outer frame (1) for assembling and integrating the display screen, characterized in that, Also includes: An ultra-thin touch display module (2) is disposed within the outer frame (1) of the screen; The ultra-thin touch display module (2) includes an outer protective layer (201), a haptic feedback layer (207), a touch sensing and optical waveguide layer (202), a dynamic display modulation layer (203), an electrode driving layer (204), an interface connection layer (205), a substrate support layer (206), and a graphene micro heat pipe layer (208) stacked sequentially from the outside to the inside. The touch sensing and optical waveguide layer (202) is directly integrated on the outer surface of the dynamic display modulation layer (203). The electrode driving layer (204) is directly integrated on the inner surface of the dynamic display modulation layer (203) through a deposition process. The interface connection layer (205) is integrated on the surface of the substrate support layer (206) and electrically connected to the electrode driving layer (204) through fine metal traces. The graphene micro heat pipe layer (208) is directly generated on the outer surface of the substrate support layer (206) through a chemical vapor deposition process. The touch sensing and optical waveguide layer (202) integrates a miniature infrared laser diode (2021) and a photodetector (2022), and the leads of the miniature infrared laser diode (2021) and the photodetector (2022) are electrically connected to the fine metal traces of the interface connection layer (205). The tactile feedback layer (207) includes a transparent piezoelectric tactile feedback layer (2071) and an optically transparent adhesive layer (2072), wherein the optically transparent adhesive layer (2072) bonds the transparent piezoelectric tactile feedback layer (2071) between the outer protective layer (201) and the touch sensing and optical waveguide layer (202).

2. The ultra-thin touch display screen according to claim 1, characterized in that, The touch sensing and optical waveguide layer (202) is a photonic crystal metasurface structure used to guide the infrared light emitted by the miniature infrared laser diode (2021) to propagate within the layer, and to detect changes in the optical path caused by touch through the photodetector (2022).

3. The ultra-thin touch display screen according to claim 1, characterized in that, The dynamic display modulation layer (203) is a voltage-driven photonic crystal metamaterial layer, and its optical properties are modulated by the electric field applied by the electrode driving layer (204) to achieve image display.

4. A smart home appliance, characterized in that, The device includes an ultra-thin touch display screen as described in any one of claims 1-3, and further includes: an appliance outer protective frame (3) for fixing the display screen and an integrated back plate (8), wherein the screen outer frame (1) is embedded inside the ultra-thin touch display screen module (2), the appliance outer protective frame (3) is fixedly connected to the back plate (8), an intelligent control module (801) is installed inside the back plate (8) and is electrically connected to the interface connection layer (205) of the ultra-thin touch display screen module (2), and a bracket (7) is installed at the bottom of the appliance outer protective frame (3).

5. A smart home appliance according to claim 4, characterized in that, Also includes: The protective mechanism (4) is installed on the outer wall of the appliance outer protective frame (3) to protect the screen outer frame (1) and the ultra-thin touch display module (2); The protective mechanism (4) includes tempered protective glass (401), which is attached to the outer protective layer (201). A spring sheet (402) is fixedly connected to the back side of the tempered protective glass (401), and one side of the outer wall of the spring sheet (402) is fixedly connected to the outer wall of the screen outer frame (1).

6. A smart home appliance according to claim 5, characterized in that, The protective mechanism (4) also includes a buffer pad (403) and a reinforcing strip (404). The buffer pad (403) and the reinforcing strip (404) are both fastened to the outer wall of the appliance outer protective frame (3), and a spring sheet (405) is provided between the buffer pad (403) and the appliance outer protective frame (3).

7. A smart home appliance according to claim 4, characterized in that, Also includes: The heat dissipation mechanism (5) is located inside the back plate (8) to dissipate heat between the back plate (8) and the ultra-thin touch display module (2); The heat dissipation mechanism (5) includes a cooling fan (501), which is located inside the back plate (8). A dust removal net (502) is installed on one side of the outer wall of the cooling fan (501). The back plate (8) has an exhaust hole 1 (503) and an exhaust hole 2 (504) respectively inside the appliance outer protective frame (3).

8. A smart home appliance according to claim 4, characterized in that, Also includes: The cooling mechanism (6) is located inside the back plate (8) and is used to cool the heat dissipation air. The cooling mechanism (6) includes a coolant tank (601) for storing coolant. The coolant tank (601) is installed on one side of the outer wall of the back plate (8). Two circulation pumps (602) are installed on the top of the coolant tank (601). The output ends of the two circulation pumps (602) are fixed with delivery pipes (603). The two delivery pipes (603) are connected to a coolant circulation pipe (604). The coolant circulation pipe (604) is located inside the cooling fan (501).

9. A smart home appliance according to claim 8, characterized in that, The cooling mechanism (6) also includes heat dissipation fins (605) for further dissipating heat from the air. The heat dissipation fins (605) are disposed between the ultra-thin touch display module (2) and the intelligent control module (801) to dissipate heat while providing further separation and support.

10. A smart home appliance according to claim 8, characterized in that, The coolant tank (601) is connected to the coolant circulation pipe (604) through the delivery pipe (603) and the circulation pump (602) to form a circulation loop.

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