Key panel and door lock equipment

Abstract

The utility model relates to the technical field of touch equipment, and discloses a key panel and door lock equipment, the key panel comprises a touch soft board; the touch soft board comprises a first thin film and a touch circuit etched on the first thin film, and a plurality of keys are arranged on the touch circuit; the first thin film is used for uniformizing light, and the touch circuit is used for collecting touch information of a user. According to the touch soft board, the touch circuit used for collecting touch information of a user is etched on the first thin film, and the touch soft board is formed by integrating the touch circuit and the first thin film with a dodging effect. When light penetrates through the touch soft board, due to the light uniformizing effect of the first thin film, the light received by the key panel is subjected to light uniformizing treatment, the light effects of different transparent areas of the key panel are kept consistent, and meanwhile the touch circuit is used for collecting touch information of a user. And the dodging film and the flexible circuit board do not need to be attached together through back glue, so that the assembly process is simplified, and the material cost and the labor cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to touch device technical field, concretely relates to key panel and door lock equipment. BACKGROUND

[0002] In order to promote the overall quality and durability of equipment, key panel such as transparent glass, transparent acrylic plate is widely used in the manufacture of keys of various electronic devices.

[0003] In the existing market, in order to ensure that the light transmission effect of key panel is uniform, it is necessary to additionally paste light uniformity film to make glass keys or pattern light uniform, and at the same time, in order to collect touch information of users, it is necessary to paste circuit soft plate in the key area. In this way, the light uniformity film and the circuit soft plate for collecting touch information need to be pasted with adhesive, which makes the assembly process complex and increases the material cost and labor cost. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a kind of key panel and door lock equipment to solve the problem that the light uniformity film and the circuit soft plate for collecting touch information are pasted together by adhesive in prior art, which leads to complex assembly process and easily increases material and labor cost.

[0005] In the first aspect, the utility model provides a kind of key panel, which comprises touch soft plate;

[0006] The touch soft plate comprises first film and touch circuit etched on the first film, and a plurality of keys are arranged on the touch circuit;

[0007] The first film is used for uniform light, and the touch circuit is used for collecting touch information of users.

[0008] Beneficial effects: the key panel of the embodiment etches touch circuit for collecting touch information of users on the first film, and by integrating touch circuit and the first film with light uniformity effect, touch soft plate is formed. When light passes through touch soft plate, due to the light uniformity effect of the first film, the light received at key panel is processed by light uniformity, so that the light effect of different transparent regions of key panel remains consistent, and touch circuit is used to collect touch information of users.

[0009] The related technology pastes single touch soft plate on touch plate without light uniformity processing, and the technology is relatively single. When light is uniformly emitted by light uniformity film, it also needs to be punched from touch plate and then covered with light uniformity film, which not only wastes materials but also increases cost, and easily causes environmental pollution. Compared with related technology, the touch circuit is etched on the first film in the embodiment, without pasting light uniformity film and soft circuit board together by adhesive, which not only simplifies assembly process but also reduces material cost and labor cost.

[0010] In an optional implementation, the first film is a light homogenizing film.

[0011] Beneficial effects: In this embodiment, by using the light homogenizing film as the substrate for etching the touch circuit, the surface of the substrate is more uniform, the etching process of the touch circuit is more stable, and the light can pass through the key panel more uniformly, thereby improving the display quality and indirectly improving the visual experience of touch operation.

[0012] This embodiment provides a light homogenizing film with internal wiring, integrates the touch circuit into the light homogenizing film, and ensures uniform distribution of light and uniform dispersion of light to the panel, which is environmentally friendly and saves adhesive materials.

[0013] In an optional implementation, the first film includes a plurality of second films, and the plurality of second films are isolated from each other by first insulating layers.

[0014] The second film is etched with a sub-circuit, and the sub-circuits etched on each second film are stacked to form a touch circuit.

[0015] Beneficial effects: In this embodiment, the first insulating layer is used to isolate different second films to prevent interlayer short circuit and provide certain mechanical strength and stability for the touch soft board. The sub-circuits of the touch circuit are etched on the plurality of second films to realize more complex circuit design in limited space, improve the space utilization of the device, and meet the needs of miniaturization and thinness of the device. The multi-layer structure can effectively reduce signal interference and improve the transmission quality of the touch signal.

[0016] In an optional implementation, each second film has a different thickness or a different refractive index.

[0017] Beneficial effects: In this embodiment, each second film has a different thickness, which can achieve more precise control of the light propagation path. The thicker film layer allows the light to propagate for a longer time and undergo more refraction and reflection processes, so that the light can experience different degrees of scattering and refraction in different depth film layers, thereby more effectively adjusting the distribution of light and achieving better light homogenization effect. In addition, for light containing multiple wavelengths, a film with a certain thickness can produce constructive or destructive interference for light of certain wavelengths. By reasonably designing the thickness of each second film, the propagation of light of certain wavelengths can be selectively enhanced or weakened, so that the finally emitted light is more uniform in color and intensity distribution.

[0018] In the embodiment, each layer of the second film has a different refractive index, and when light enters the medium of another second film from a second film with a different refractive index, refraction and reflection occur. The presence of different refractive indices in each layer of the second film results in more refraction and reflection points at the interfaces between the layers, which enables the propagation direction of light to be more diversified, thereby enhancing the scattering effect of light and helping to achieve more uniform light distribution. In addition, the thin films with different refractive indices can guide light to propagate along a specific path, and by reasonably designing the refractive indices of the thin films in each layer, the light can be focused, diverged, or redirected, and other operations, thereby accurately controlling the propagation path of light in the light uniformity film at a microscopic level and achieving the ideal light uniformity effect.

[0019] In an alternative embodiment, light scattering particles are added inside at least one layer of the multi-layer second film.

[0020] Beneficial effects: In the embodiments of the present application, by adding light scattering particles in one or more layers of the multi-layer second film, the incident light is refracted, reflected, and scattered at the interface between the particles and the film, thereby changing the propagation direction of the light and achieving better light uniformity.

[0021] In an alternative embodiment, the key panel further comprises a cover panel, which is attached to the touch soft panel.

[0022] Beneficial effects: In the embodiments, the touch soft panel is usually thin and relatively soft in material, and is easily damaged by scratching, collision, and other physical damage. By providing physical protection for the touch soft panel with the cover panel, the touch soft panel can be effectively prevented from being directly contacted by external objects, and the occurrence of scratching, wear, and other situations can be avoided, thereby prolonging the service life of the touch soft panel. Moreover, the cover panel can also isolate the chemical substances that cause corrosion and prevent them from reacting with the touch soft panel, thereby maintaining the optical performance and stability of the touch soft panel.

[0023] In addition, the cover panel can also prevent other substances such as water vapor and dust from entering the touch soft panel. For the touch soft panel, water vapor can cause delamination, fogging, and other phenomena between the film layers, affecting the propagation of light and the light uniformity effect. Dust adhering to the surface of the touch soft panel can also reduce its light transmittance and light uniformity performance. After attaching the cover panel, a relatively closed environment can be created for the touch soft panel, reducing the interference of other substances.

[0024] In an alternative embodiment, the cover panel is a transparent glass or transparent acrylic plate.

[0025] Beneficial effects: In the embodiment, the transparent glass or acrylic plate has good flatness and optical uniformity, and when light passes through the light homogenizing film and then through the glass or acrylic plate, the light can be further calibrated and corrected. For large-area light homogenizing applications, the glass or acrylic plate can help distribute pressure evenly and reduce local deformation of the light homogenizing film caused by uneven external force, thereby maintaining uniform distribution of light. The transparent glass and acrylic plate itself has high light transmittance, and when used with the light homogenizing film, it can improve the light transmittance efficiency of the entire optical system.

[0026] Moreover, the transparent glass or acrylic plate can also serve as an auxiliary light control element. Through surface treatment processes such as frosting and coating, the glass or acrylic plate can further adjust the propagation direction and angle of light, and in combination with the light homogenizing function of the light homogenizing film, more precise light distribution can be achieved.

[0027] In an alternative embodiment, a second insulating layer is provided between the touch soft plate and the cover panel.

[0028] Beneficial effects: In the embodiment, the second insulating layer can serve as a protective film to prevent the touch soft plate from being physically damaged, water vapor eroded, etc. Meanwhile, it can also serve as a buffer to reduce pressure and friction on the electrodes and circuit during touch operation, thereby prolonging the service life of the touch circuit.

[0029] In a second aspect, the utility model provides a door lock device, door lock device includes light source and the key panel of the first aspect or its any one corresponding embodiment.

[0030] In an alternative embodiment, the door lock device controls the light source to turn on when detecting the touch information of the user.

[0031] The utility model has the advantages of:

[0032] The key panel etches the touch circuit for collecting the touch information of the user on the first film, and by integrating the touch circuit and the first film with light homogenizing effect, a touch soft plate is formed. When light passes through the touch soft plate, due to the light homogenizing effect of the first film, the light received at the key panel is homogenized, so that the light effect of different transparent regions of the key panel remains consistent, and the touch circuit is used to collect the touch information of the user. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0034] Figure 1 is a structural schematic diagram of another key panel according to an embodiment of the present application;

[0035] Figure 2 is a structural schematic diagram of another key panel according to an embodiment of the present application;

[0036] Figure 3 is a structural schematic diagram of another key panel according to an embodiment of the present application;

[0037] Figure 4 is a structural block diagram of a door lock device according to an embodiment of the present application.

[0038] Explanation of reference signs:

[0039] 10, key panel; 11, touch soft board; 101, first film; 1001, second film; 102, touch circuit; 12, cover panel. Specific embodiments

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0041] In the description of the present application, it should be pointed out that the terms "inner", "upper", "outer", "lower", "under" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the utility model, it is necessary to explain that, unless there are explicit provisions and limitations, the terms "installation", "connection", "communication" should be understood broadly, for example, it can be fixed communication, or it can be detachable communication, or it can be integrally communicated; it can be mechanical communication, or it can be electrical communication; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements, it can be wireless communication, or it can be wired communication. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0043] In the existing market, the key panel does not have a uniform light effect, and an additional uniform light film is needed to assist in achieving the uniform light effect, and if touch function is required, a soft circuit board needs to be added to collect touch information.

[0044] That is, in order to ensure that the light transmission effect of the key panel is uniform, the existing solution is to paste a uniform light film, so that the glass key or pattern light is uniform, and in order to meet the requirement of collecting touch information of the key, a soft circuit board needs to be added to the key area, so that the uniform light film and the soft circuit board collecting touch information need to be pasted with adhesive, which makes the assembly process complex and increases the cost of materials and labor.

[0045] Therefore, the utility model embodiment provides a kind of key panel, by etching touch circuit on the first film with uniform light effect, constitute touch soft board.When the light of equipment passes through touch soft board, due to the uniform light function of first film, the light received at key panel is treated by uniform light, so that the light effect of transparent area of key panel can keep design consistent, and touch circuit can also be used to collect touch information of user.This way, without uniform light film and soft circuit board are pasted together by adhesive, it simplifies assembly process, and also reduces material cost and labor cost.

[0046] The embodiments of the utility model will be described below in conjunction with Figures 1 to 3 .

[0047] According to the utility model embodiment, a kind of key panel 10 is provided, as shown in Figure 1 , the key panel 10 includes touch soft board 11, wherein, touch soft board includes first film 101 and etching touch circuit 102 on first film 101, and a plurality of keys are provided on touch circuit 102.First film 101 is used to uniform light, and touch circuit 102 is used to collect touch information of user.

[0048] In some optional embodiments, a substrate with good flexibility, high temperature resistance and electrical insulation can be selected as the first film 101, and the light passing area of the first film 101 is determined, the touch circuit 102 is etched on the first film 101, and the light passing area of the first film 101 does not pass through the line.

[0049] In the embodiment, the touch circuit 102 for collecting touch information of the user is etched on the first film 101, and the touch soft plate 11 is formed by integrating the touch circuit 102 and the first film 101 with the light uniformization effect. When the light passes through the touch soft plate 11, the light received at the key panel is processed by the light uniformization effect of the first film 101, so that the light effects of different transparent regions of the key panel are consistent, and the touch information of the user is collected by the touch circuit 102.

[0050] The related art only uses a single touch soft plate on the touch plate without light uniformization processing, and the technology is relatively simple. When the light is uniformly emitted by using the light uniformization film, a hole needs to be opened on the touch plate, and then the light uniformization film is covered, which wastes materials, increases the cost, and easily causes environmental pollution. Compared with the related art, the touch circuit 102 is etched on the first film 101, and the light uniformization film and the soft circuit board do not need to be attached together by the adhesive, which simplifies the assembly process and reduces the material cost and the labor cost.

[0051] It should be noted that the specific circuit structure of the touch circuit 102 is not limited, because the main point of the application is the integrated relationship between the touch circuit 102 and the first film 101, so as to realize the effect that the touch soft plate 11 has the light uniformization function and the touch information collection function. The specific circuit structure of the touch circuit 102 can be set according to the actual function of the touch circuit 102, for example, it can be set as single-point touch or multi-point touch, and the required elements of the touch circuit 102 can be determined in combination with the circuit function such as input information, such as a capacitive touch sensor, a resistive touch sensor, a microcontroller for processing complex signals, a power management chip, and the like. In addition, the size and shape of the touch circuit 102 are designed according to the actual installation space and use scene, for example, the touch circuit 102 for the smart door lock should conform to the internal space of the door lock, and the size should be as small as possible to save space, and can be set as a stacked structure. These adjustments are within the protection scope of the embodiment.

[0052] In some optional embodiments, the first film 101 is a light uniformization film. The light uniformization film is also called a diffusion film, which is mainly used to convert a point light source or a line light source into a uniformly distributed surface light source. When the light passes through the light uniformization film, multiple refraction, reflection and scattering occur, so that the propagation direction of the light is changed, and the effect of uniform light is achieved.

[0053] Exemplarily, when etching the touch circuit 102, the light homogenizing film can be used as a bottom material such as a substrate of the touch circuit 102 to provide a flat and uniform support surface for the touch electrode and other circuit elements, and ensure good contact and insulation between the touch electrode and other layers. For example, the light homogenizing film and the glass are first attached or integrated to form a substrate, and then the touch circuit is made on the substrate. The light homogenizing film can fill the small defects on the surface of the substrate, so that the touch circuit is made more uniformly and stably. When the touch circuit 102 is integrated with the light homogenizing film, the light homogenizing film can be used to improve the uniformity of the display, so that the light is more uniformly transmitted through the key panel, thereby improving the display quality and indirectly improving the visual experience of touch operation.

[0054] In some optional embodiments, the light homogenizing film can be combined with a conductive material, such as adding a conductive layer on the surface of the light homogenizing film by printing, plating or other processes, so that the light homogenizing film has certain conductivity, and then the touch circuit 102 is etched. For example, a layer of transparent conductive oxide film is deposited on the light homogenizing film by using a magnetron sputtering method, and then the touch circuit is made by using photolithography, etching and other processes to realize the touch function.

[0055] In this embodiment, by using the light homogenizing film as the substrate for etching the touch circuit 102, the surface of the substrate is more uniform, the etching process of the touch circuit is more stable, and the light is more uniformly transmitted through the key panel, thereby improving the display quality and indirectly improving the visual experience of touch operation.

[0056] In this embodiment, the light homogenizing film can be internally wired, and the touch circuit 102 is integrated into the light homogenizing film. There is no line passing through the place where light needs to pass, which ensures uniform distribution of light and uniform dispersion of light to the panel. It is environmentally friendly and can save adhesive materials.

[0057] It should be noted that the specific material of the light homogenizing film is not limited in the embodiments of the present application, because the main innovation of the present application is the integrated relationship between the light homogenizing film and the touch circuit 102, so as to realize the effect that the touch soft board 11 has the light homogenizing function and the touch information collecting function. The specific material of the light homogenizing film can be set according to the actual use environment, for example, the light homogenizing film can adopt a single-layer or multi-layer film structure, and these adjustments are within the protection scope of the embodiments of the present application.

[0058] In some optional embodiments, as shown in Figure 2 The first film 101 includes a plurality of second films 1001, the plurality of second films 1001 are isolated from each other by a first insulating layer, and a sub-circuit is etched on each second film 1001. The sub-circuits etched on each second film 1001 are stacked to form the touch circuit 102.

[0059] Exemplarily, the first insulating layer is used to isolate different second thin films 1001, prevent interlayer short circuit, and provide certain mechanical strength and stability for the touch soft board 11. The first insulating layer can be made of materials such as epoxy resin and glass fiber, and the application is not limited thereto.

[0060] In the embodiment, the sub-circuits of the touch circuit 102 are etched on the multi-layer second thin film 1001, a more complex circuit design is realized in a limited space, the space utilization of the device is improved, and the demand of the device for miniaturization and thinning is met. The multi-layer structure can effectively reduce signal interference and improve the transmission quality of the touch signal.

[0061] In some optional embodiments, each layer of the second thin film 1001 can have different thicknesses or different refractive indexes.

[0062] Specifically, the first thin film 101 can be formed by laminating the multi-layer second thin films 1001 with different functions and optical properties through an optical adhesive layer. Exemplarily, each layer of the second thin film 1001 has different thicknesses, and the propagation path of light can be more finely controlled. For example, a thicker thin film layer allows light to propagate therein for a longer time and undergo more refraction and reflection processes. In this way, light can experience different degrees of scattering and refraction in different depth film layers, so that the distribution of light can be more effectively adjusted, and a better light uniformity effect can be achieved.

[0063] In addition, for light containing multiple wavelengths, a thin film with a certain thickness can produce constructive or destructive interference for light of certain wavelengths. By reasonably designing the thickness of each layer of the second thin film 1001, the propagation of light of certain wavelengths can be selectively enhanced or weakened, so that the finally emitted light is more uniform in color and intensity distribution.

[0064] Exemplarily, each layer of the second thin film 1001 has a different refractive index. When light enters the medium of another second thin film 1001 from a second thin film 1001 with a certain refractive index, refraction and reflection occur. Each layer of the second thin film 1001 has a different refractive index, which produces more refraction and reflection points at the interfaces between the layers, so that the propagation direction of light can be more diversified, thereby enhancing the scattering effect of light and helping to achieve more uniform light distribution.

[0065] In addition, thin films with different refractive indexes can guide light to propagate along a certain path. By reasonably designing the refractive indexes of the layers of the thin film, the light can be focused, diverged, or redirected, and the propagation path of the light in the light uniformity film can be accurately controlled at a micro level to achieve an ideal light uniformity effect.

[0066] In the embodiment, the thickness of each layer of the second film 1001 is designed reasonably, so that the light experiences different degrees of scattering and refraction in the second film 1001 with different thicknesses, thereby more effectively adjusting the distribution of light and achieving a better light uniformity effect. In addition, the film with a specific thickness can interfere with light of certain wavelengths, so that the propagation of light of certain wavelengths can be selectively enhanced or weakened by designing the thickness of the second film 1001, so that the light reaching the key panel is more uniform in color and intensity distribution. The refractive index of each layer of the second film 1001 can also be designed reasonably to accurately control the propagation path of light in the light uniformity film, achieving an ideal light uniformity effect.

[0067] In some optional embodiments, light scattering particles are added inside at least one layer of the multi-layer second film 1001.

[0068] For example, one or more layers of the multi-layer second film 1001 can include scattering particles for scattering light. By adding scattering particles in the second film 1001 or coating the surface with a material containing scattering particles, the incident light is refracted, reflected and scattered at the interface between the particles and the surrounding medium, thereby changing the propagation direction of the light and achieving light diffusion and light uniformity effect.

[0069] It should be noted that the scattering particles can be inorganic particles or organic particles, and the particle size of these particles is usually in the nanometer to micrometer range, which is not limited in the present application.

[0070] In the embodiment, by adding light scattering particles in one or more layers of the multi-layer second film 1001, the incident light is refracted, reflected and scattered at the interface between the particles and the film, thereby changing the propagation direction of the light and achieving better light uniformity effect.

[0071] In some optional embodiments, as shown in Figure 3 The key panel further includes a cover panel 12, which is attached to the touch soft panel 11.

[0072] Specifically, the touch soft panel 11 is usually thin and relatively soft in material, and is easily damaged by scratching, collision and other physical damage. The cover panel 12 provides physical protection for the touch soft panel 11, which can effectively prevent external objects from directly contacting the light uniformity film and avoid scratches, wear and tear, thereby prolonging the service life of the touch soft panel 11. In addition, the cover panel 12 can also isolate the chemical substances that cause corrosion and prevent them from reacting with the touch soft panel 11, thereby maintaining the optical performance and stability of the touch soft panel 11.

[0073] In addition, the cover panel 12 can also prevent other substances such as water vapor and dust from entering the touch soft board 11. For the touch soft board 11, water vapor can cause delamination, fogging and other phenomena between the film layers, affecting the propagation and uniform light effect of light. Dust adhering to the surface of the touch soft board 11 can also reduce its light transmittance and uniform light performance. After the cover panel 12 is pasted, a relatively closed environment can be created for the touch soft board 11, reducing the interference of other substances.

[0074] In an optional embodiment, the cover panel 12 is a transparent glass or transparent acrylic plate.

[0075] Specifically, the transparent glass or acrylic plate has good flatness and optical uniformity. When light passes through the uniform light film and then passes through the glass or acrylic plate, the light can be further calibrated and corrected. For large-area uniform light applications, the glass or acrylic plate can help distribute pressure evenly and reduce local deformation of the uniform light film caused by uneven external forces, thereby maintaining uniform light distribution. The transparent glass and acrylic plate itself has high light transmittance, which can improve the light transmittance efficiency of the entire optical system when used with the uniform light film.

[0076] In some optional embodiments, the transparent glass or acrylic plate can also serve as an auxiliary light control element. Through surface treatment processes such as frosting and coating, the glass or acrylic plate can further adjust the propagation direction and angle of light, combined with the uniform light function of the uniform light film, to achieve more precise light distribution.

[0077] In some optional embodiments, a second insulating layer is provided between the touch soft board 11 and the cover panel 12.

[0078] Specifically, the second insulating layer can serve as a protective film to prevent the touch soft board 11 from being physically damaged or water vapor eroded by the outside world. At the same time, it can also act as a buffer to reduce pressure and friction on the electrodes and circuit during touch operation, prolonging the service life of the touch circuit.

[0079] According to an embodiment of the present application, a door lock device is provided, as shown in Figure 4 The door lock device includes a light source 20 and a key panel 10 as shown in Figure 1 .

[0080] Specifically, when light reaches the touch soft board, the light received at the key panel is uniform light processed due to the effect of the first film with uniform light effect, and the light effect of the transparent part of the key panel can remain consistent. Again, the touch circuit on the first film allows the touch soft board to have a receiving touch effect.

[0081] The door lock device provided by the embodiment of the utility model, including light source and button panel, button panel can etch touch circuit for collecting user's touch information on first film, through integrated touch circuit and first film with light uniformity effect, constitute touch soft board.

[0082] In some optional embodiments, the door lock device controls the light source to turn on when detecting the touch information of the user, provides illumination for the user to facilitate the user to operate the door lock device, and meets the illumination needs of the user in different scenes. The light source is accurately turned on according to actual needs, unnecessary energy waste is avoided, and the purpose of energy saving is achieved. The use time of the light source is reasonably controlled through touch control opening, and resource waste is indirectly reduced.

[0083] Although the embodiments of the utility model are described in combination with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A key panel, characterized by comprising: The key panel comprises a touch soft panel; The touch soft panel comprises a first film and a touch circuit etched on the first film, and a plurality of keys are arranged on the touch circuit; The first film is used for uniform light, and the touch circuit is used for collecting touch information of a user.

2. The keypanel of claim 1, wherein, The first film is a light uniform film.

3. The keypanel according to claim 1 or 2, characterized in that The first film comprises a plurality of second films, and the second films are isolated from each other by a first insulating layer. Sub-circuits are etched on the second films, and the sub-circuits etched on each second film are stacked to form the touch circuit.

4. The keypanel of claim 3, wherein, Each second film has different thickness or different refractive index.

5. The keypanel of claim 3, wherein, Light scattering particles are added in at least one second film of the plurality of second films.

6. The keypanel of claim 1 or 2, wherein The key panel further comprises a cover panel, and the cover panel is attached to the touch soft panel.

7. The keypanel of claim 6, wherein, The cover panel is transparent glass or transparent acrylic plate.

8. The keypanel of claim 6, wherein, A second insulating layer is arranged between the touch soft panel and the cover panel.

9. A door lock apparatus characterized by comprising: The door lock device comprises a light source and the key panel according to any one of claims 1 to 8.

10. The door latch apparatus according to claim 9, wherein The door lock device controls the light source to be turned on when detecting the touch information of the user.

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