Display device and refrigerator

Abstract

The utility model relates to the technical field of refrigerators, in particular to a display device and a refrigerator, the display device is applied to the refrigerator, and the refrigerator is provided with multiple layers of storage spaces; the display device comprises the projection equipment, the projection equipment is arranged on the refrigerator body of the refrigerator, the projection equipment is used for projecting the prompt information into at least one layer of storage space, the display information of each layer of storage space can be seen without repeatedly opening and closing a door, the structure is simple, and the overall cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of refrigerators, and particularly to a display device and a refrigerator. Background Art

[0002] Currently in the refrigerator market, the display panels of most refrigerators are installed on the door for operating and controlling the refrigerator temperature, as well as displaying prompt information such as the temperature and partition of the refrigerator compartments. However, after the user opens the door, if they want to view the panel information, they need to repeatedly open and close the door, which is inconvenient to operate; and if a screen is installed in each drawer, etc., multiple screens need to be installed, which not only occupies the space of the refrigerator but also increases the cost. Utility Model Content

[0003] The purpose of this application is to provide a display device and a refrigerator. The display device can display information of each storage space without repeatedly opening and closing the door, and has a simple structure, reducing the overall cost.

[0004] To this end, an embodiment of this application provides a display device applied to a refrigerator, which has multiple storage spaces; the display device includes a projection device, and the projection device is arranged on the refrigerator body and is used to project prompt information into at least one storage space.

[0005] In a possible implementation, the prompt information projected by the projection device includes at least one of temperature, humidity, oxygen concentration, and recommended food types for storage.

[0006] In a possible implementation, the projection device includes a first projection device, and the first projection device projects prompt information onto the back panel of the refrigerator's fresh food compartment.

[0007] In a possible implementation, a first drawer is arranged in the storage space of the fresh food compartment, and the first projection device projects prompt information onto the panel of the first drawer.

[0008] In a possible implementation, the projection device includes an adjustment mechanism, and the adjustment mechanism is used to adjust the projection position of the projection device.

[0009] In a possible implementation, the display device further includes a first sensor, and the first sensor is used to obtain the viewing position information of the user. The adjustment mechanism adjusts the projection position of the prompt information according to the viewing position information of the user so that the user can view the prompt information.

[0010] In a possible implementation, a second drawer is arranged in the storage space of the freezer compartment of the refrigerator. The projection device includes a second projection device, and the second projection device is used to project prompt information onto the panel of the second drawer.

[0011] In a possible implementation, the display device further includes a second sensor, which is configured to obtain the position information of the second drawer, and the adjustment mechanism adjusts the projection position of the prompt information according to the position information of the second drawer, so that the prompt information remains on the panel of the second drawer.

[0012] In a possible implementation, the projection device further includes a display light source, and the adjustment mechanism includes: a reflection component, which is configured to reflect the light beam emitted by the display light source and form a reflected light beam; and a driving component, which is configured to adjust the angle of the reflection component to adjust the angle of the reflected light beam.

[0013] In a possible implementation, the adjustment mechanism further includes a light-transmitting plate, which is slidably arranged along a first direction. A plurality of light-transmitting holes for the reflected light beam to pass through are arranged at intervals along the first direction on the light-transmitting plate, and the driving component is configured to drive the light-transmitting plate to slide along the first direction so that the reflected light beam passes through different light-transmitting holes.

[0014] In a second aspect, an embodiment of the present application provides a refrigerator, including: a box body; and the above-mentioned display device.

[0015] In a third aspect, an embodiment of the present application provides a control method for the above-mentioned display device, including: detecting whether the door of the refrigerator is opened; if the door is opened, the projection device projects prompt information into at least one storage space of the refrigerator.

[0016] In a possible implementation, the projection device includes an adjustment mechanism, which is configured to adjust the projection position of the projection device. The display device further includes a first sensor, which is configured to obtain the viewing angle position information of the user, and the adjustment mechanism adjusts the projection position of the prompt information according to the viewing angle position information of the user; projecting the prompt information into at least one storage space of the refrigerator by the projection device includes: the first sensor obtains the viewing angle position information of the user, and the adjustment mechanism adjusts the projection position of the prompt information according to the viewing angle position information of the user.

[0017] In a possible implementation, the projection device includes an adjustment mechanism, which is configured to adjust the projection position of the projection device. A second drawer is arranged in the storage space of the freezer of the refrigerator. The display device further includes a second sensor, which is configured to obtain the position information of the second drawer, and the adjustment mechanism adjusts the projection position of the prompt information according to the position information of the second drawer; projecting the prompt information into at least one storage space of the refrigerator by the projection device includes: the second sensor obtains the position information of the second drawer, and the adjustment mechanism adjusts the projection position of the prompt information according to the position information of the second drawer.

[0018] According to the display device and refrigerator provided by the embodiments of the present application, the display device projects prompt information into the corresponding storage space through a projection device. The user can directly view the prompt information at the storage space in the door-open state, and can see the prompt information of each storage layer without repeatedly opening and closing the door. Moreover, there is no need to install a display screen for each drawer, the structure is simple, and the overall cost is reduced. Description of the Drawings

[0019] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments consistent with the present invention, and are used together with the specification to explain the principles of the present invention.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the figures do not constitute a proportional limitation.

[0022] Figure 1 Showing a schematic structural diagram of a display device provided by an embodiment of the present application in a box body;

[0023] Figure 2 Showing a schematic structural diagram of a display device provided by an embodiment of the present application during projection;

[0024] Figure 3 Showing a schematic structural diagram of a display device provided by an embodiment of the present application during projection in a refrigerating chamber;

[0025] Figure 4 Showing a schematic structural diagram of a display device provided by an embodiment of the present application during projection in a freezing chamber;

[0026] Figure 5 Showing a schematic structural diagram of a projection device provided by an embodiment of the present application;

[0027] Figure 6 Showing a top view structural diagram of a projection device provided by an embodiment of the present application;

[0028] Figure 7 Showing a flowchart of a display device control method provided by an embodiment of the present application.

[0029] Explanation of the Reference Numerals in the Drawings:

[0030] 1. Projection device; 11. Adjusting mechanism; 111. Reflection component; 1111. First movable reflector; 1112. Second movable reflector; 1113. Link rod; 1114. Fixed reflector; 112. Driving component; 1121. Driving motor; 1122. Gear set; 1123. Rack; 113. Translucent plate; 1131. Translucent hole; 12. Display light source; 13. Translucent lens;

[0031] 2. Box body; 21. Refrigerating chamber; 22. Freezing chamber; 23. Second drawer;

[0032] 3. First sensor;

[0033] 4. Second sensor. Specific embodiments

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0035] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. To simplify the disclosure of the embodiments of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the embodiments of the present application. In addition, the embodiments of the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0036] For ease of description, spatial relative relationship terms may be used in the text to describe the relative positional relationship or movement of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "upper", "front", "rear", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation in addition to the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip, attitude change, or motion state change, then these directional indications will change accordingly. For example, an element described as "below other elements or features" or "beneath other elements or features" will subsequently be oriented as "above other elements or features" or "upper than other elements or features". Therefore, the exemplary term "below" may include both upper and lower orientations. The device may be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0037] To solve the problems in the prior art, the present application provides a display device and a refrigerator. The display device can display information of each storage space without repeatedly opening and closing the door, and has a simple structure, reducing the overall cost.

[0038] Figure 1 Schematic structural diagram of a display device provided by an embodiment of the present application in a box body; Figure 2 Schematic structural diagram of a display device provided by an embodiment of the present application during projection; Figure 3 Schematic structural diagram of a display device provided by an embodiment of the present application during projection in a refrigerating chamber; Figure 4 Schematic structural diagram of a display device provided by an embodiment of the present application during projection in a freezing chamber; Figure 5 Schematic structural diagram of a projection device provided by an embodiment of the present application; Figure 6 Schematic top view structural diagram of a projection device provided by an embodiment of the present application.

[0039] As Figures 1-6 shown, an embodiment of the present application provides a display device, which is applied to a refrigerator having multiple storage spaces; the display device includes a projection device 1, and the projection device 1 is disposed on the box body 2 of the refrigerator, and the projection device 1 is used to project prompt information into at least one storage space.

[0040] In the present application, the projection device 1 projects the prompt information into the corresponding storage space, and the user can directly view the prompt information at the storage space in the door-open state, and can view the prompt information of each storage space without repeatedly opening and closing the door. Moreover, there is no need to install a display screen for each drawer, the structure is simple, and the overall cost is reduced.

[0041] In the related art, currently, the display panels of most refrigerators are set on the door. They are used to operate and control the temperature of the refrigerator, and display information such as the temperature of the refrigerator compartments and partition prompts. After the user opens the door, if they want to see the information on the display panel, they need to repeatedly open and close the door, which is inconvenient to operate. If screens are installed on each drawer to display prompt information, multiple screens need to be installed, which increases the cost and occupies the internal space of the refrigerator.

[0042] In this application, by setting a projection device 1 on the refrigerator body 2, after the door is opened, the projection device 1 projects the prompt information to a suitable position in the storage space, so as to facilitate the user to clearly see the prompt information, without the user repeatedly opening and closing the door. Moreover, compared with installing multiple screens, it saves cost and saves the occupation of the internal space of the refrigerator.

[0043] Specifically, the projection device 1 projects the prompt information in the form of projection into the storage space, which is used to display the information of the storage space. Even if there are items in the storage space, the prompt information can be formed on the surface of the items. The projection device 1 is installed on the middle beam or the top of the refrigerator body 2, which reduces the occupation of the storage space compared with setting a screen on the drawer.

[0044] When the projection device 1 projects the prompt information, it can project multiple prompt information at one time, and the multiple prompt information respectively correspond to multiple storage spaces. It can also project one prompt information at a time and project the prompt information into the required storage space.

[0045] In some embodiments, the prompt information projected by the projection device 1 includes at least one of temperature, humidity, oxygen concentration, and recommended food types for storage.

[0046] In this application, through the prompt information in the storage space, the user can clearly understand the temperature, humidity, oxygen concentration and other information in the storage space, as well as the food types recommended for storage in the storage space. When putting in food ingredients, the user can intuitively see the prompt information, which is also beneficial to storing food in a more suitable storage compartment, classifying the storage of food, and facilitating the storage and retrieval of food. For example, if the temperature, humidity and oxygen concentration of a storage space are suitable for storing fruits, the prompt information in the storage space shows text or images recommending the storage of fruits. If the temperature, humidity and oxygen concentration of a storage space are suitable for storing vegetables, the prompt information in the storage space shows text or images recommending the storage of vegetables.

[0047] Of course, the prompt information in this application is not limited to the above-mentioned temperature, humidity, and oxygen concentration, and can also include information such as carbon dioxide concentration.

[0048] In some embodiments, the projection device 1 includes a first projection device 1 that projects prompt information onto the back panel of the refrigerating chamber 21 of the refrigerator.

[0049] In this application, the refrigerating chamber 21 of the refrigerator includes multiple compartments, each compartment corresponding to a storage space. The multiple compartments are separated by shelves. The first projection device 1 projects the prompt information onto the back panel of the refrigerating chamber 21 and corresponds to each compartment, for displaying the information situation of that compartment. The shelves are generally made of transparent materials and do not affect the projection device 1 from projecting onto the lower compartments.

[0050] Specifically, the back panel of the refrigerating chamber 21 of the refrigerator is generally an air duct mask, and the first projection device 1 projects the prompt information onto the air duct mask. The user can directly see the prompt information on the air duct mask and can see the prompt information when taking and placing food, without repeatedly opening and closing the door.

[0051] Optionally, when the projection device 1 projects prompt information onto the compartments of the refrigerating chamber 21, it can also project the prompt information onto the side wall or other parts of the compartment, mainly corresponding to the storage space, so that the user can know that the prompt information is for that storage space.

[0052] In some embodiments, a first drawer is provided in the storage space of the refrigerating chamber 21, and the first projection device 1 projects prompt information onto the panel of the first drawer.

[0053] In this application, a first drawer is generally provided at the bottom of the refrigerating chamber 21 of some refrigerators, that is, the first drawer is provided in the storage space. When the first projection device 1 projects prompt information onto the storage space, it projects the prompt information onto the panel of the first drawer, facilitating viewing of the prompt information on the first drawer.

[0054] In some embodiments, the projection device 1 includes an adjustment mechanism 11 for adjusting the projection position of the projection device 1.

[0055] In this application, the projection device 1 can adjust the projection position through the adjustment mechanism 11 so that the projected prompt information can just correspond to the corresponding storage space, and can finely adjust the position of the projected prompt information to adjust the position of the prompt information according to information such as the user's height, so as to facilitate the user to view the prompt information. The adjustment mechanism 11 in this application is also used for the projection device 1 to project prompt information onto different storage spaces. For example, when it is necessary to project onto the storage space on the upper first layer, the adjustment mechanism 11 projects the prompt information into the storage space on the first layer; when it is necessary to project onto the storage space on the second layer, the adjustment mechanism 11 projects the prompt information into the storage space on the second layer, realizing that one projection device 1 can project onto different storage spaces, further saving costs.

[0056] Optionally, multiple projection devices 1 can also be selected. Each projection device 1 corresponds to one or two layers of storage space. When projection onto the storage space is required, the corresponding projection device 1 can be activated for projection.

[0057] In some embodiments, the display device further includes a first sensor 3. The first sensor 3 is used to obtain the perspective position information of the user, and the adjustment mechanism 11 adjusts the projection position of the prompt information according to the perspective position information of the user, so that the user can see the prompt information.

[0058] In this application, the first sensor 3 is a distance sensor, which is used to obtain the perspective position information of the user. Then, according to the perspective position information of the user, the projection position of the projection device 1 is adjusted through the adjustment mechanism 11 to ensure that users of different heights can clearly see the prompt information in the corresponding storage space when opening the refrigerator.

[0059] Specifically, the first sensor 3 is used to obtain the height of the user and the distance from the refrigerator, and based on the height information of the user and the distance information from the refrigerator, the position of the user's eyes is determined, that is, the visual position information of the user is obtained.

[0060] In some embodiments, a second drawer 23 is provided in the storage space of the freezer compartment 22 of the refrigerator. The projection device 1 includes a second projection device 1, and the second projection device 1 is used to project prompt information onto the panel of the second drawer 23.

[0061] In this application, a second drawer 23 is generally provided in the freezer compartment 22 of the refrigerator, and the refrigerating compartment 21 and the freezer compartment 22 of the refrigerator are separated. Therefore, the second projection device 1 is specifically provided for projection in the freezer compartment 22. Specifically, the second projection device 1 is provided at the bottom of the middle beam and on the inner top wall of the freezer compartment 22. There are partitions between adjacent storage spaces in the freezer compartment 22. The second projection device 1 projects the prompt information onto the panel of the second drawer 23, facilitating the user to clearly see the prompt information.

[0062] Specifically, the second projection device 1 can project prompt information on the panel of each second drawer 23 respectively, that is, one projection device 1 projects multiple prompt information on the panels of multiple second drawers 23 respectively; or the second projection device 1 can project one prompt information each time. This is the same as the first projection device 1 and will not be elaborated here.

[0063] In some embodiments, the display device further includes a second sensor 4. The second sensor 4 is used to obtain the position information of the second drawer 23, and the adjustment mechanism 11 adjusts the projection position of the prompt information according to the position information of the second drawer 23, so that the prompt information remains on the panel of the second drawer 23.

[0064] In this application, the second sensor 4 is a position sensor. The position information of the second drawer 23 is detected by the second sensor 4. According to the position information of the second drawer 23, it is determined whether the second drawer 23 is pulled out. If the second drawer 23 is pulled out, the projection position of the second projection device 1 is adjusted by the adjusting mechanism 11, so that the prompt information can always be maintained on the panel of the second drawer 23, thereby ensuring the clarity and accuracy of the projection of the prompt information. In addition, when the second sensor 4 in this application detects that a second drawer 23 is pulled out, it proves that food needs to be taken or placed in the second drawer 23. Then, the second drawer 23 is projected by the adjusting mechanism 11, and the other second drawers 23 may not be projected. Moreover, the projection position of the second projection device 1 can be finely adjusted by the adjusting mechanism 11 according to the pulling distance of the second drawer 23 to ensure that the prompt information is on the panel of the second drawer 23.

[0065] In some embodiments, the projection device further includes a display light source 12. The adjusting mechanism 11 includes: a reflection component 111, which is used to reflect the light beam emitted by the display light source 12 and form a reflected light beam; and a driving component 112, which is used to adjust the angle of the reflection component 111 to adjust the angle of the reflected light beam.

[0066] In this application, the light beam emitted by the display light source 12 is reflected by the reflection component 111 to form a reflected light beam. The angle of the reflection component 111 is adjusted by the driving component 112, thereby realizing the adjustment of the angle of the reflected light beam and the adjustment of the projection position.

[0067] Specifically, the reflection component 111 includes a first movable reflector 1111 and a second movable reflector 1112. Both the first movable reflector 1111 and the second movable reflector 1112 are rotatably connected to the box body 2. The first movable reflector 1111 and the second movable reflector 1112 are connected by a connecting rod 1113. The driving component 112 is used to drive the first movable reflector 1111 or the second movable reflector 1112 to rotate. Through the action of the connecting rod 1113, the synchronous rotation of the first movable reflector 1111 and the second movable reflector 1112 is realized, and then the change of the reflection angle of the light beam is realized. Only one power source is needed to realize the synchronous rotation of the first movable reflector 1111 and the second movable reflector 1112, saving the driving component 112. Of course, driving components 112 can also be configured for the first movable reflector 1111 and the second movable reflector 1112 respectively to drive the first movable reflector 1111 and the second movable reflector 1112 to rotate respectively, and the cooperation angle of the first movable reflector 1111 and the second movable reflector 1112 is controlled by an encoder. Among them, the driving component 112 includes a driving motor 1121 and a gear set 1122. The driving motor 1121 drives the first movable reflector 1111 or the second movable reflector 1112 to rotate through the gear set 1122. The gear set 1122 in the present application includes a driving gear connected to the power output end of the driving motor 1121 and a driven gear connected to the first movable reflector 1111 or the second movable reflector 1112. The driving gear meshes with the driven gear, thereby driving the first movable reflector 1111 and the second movable reflector 1112 to rotate. The gear set 1122 in the present application can also be other forms that can drive the first movable reflector 1111 and the second movable reflector 1112 to rotate.

[0068] Optionally, a servo motor can also be used to replace the driving motor 1121 to provide the power for rotation.

[0069] Furthermore, the light reflecting component in the present application further includes a fixed reflector 1114. The fixed reflector 1114 is fixedly arranged and forms an angle of 45° with the ground. The light beam emitted by the display light source 12 is first reflected by the fixed reflector 1114, and then reflected by the first movable reflector 1111 and the second movable reflector 1112, which can enable the display light source 12 to be horizontally arranged, thereby reducing the occupied space in the vertical direction and further reducing the occupied space of the projection device 1.

[0070] A light transmissive lens 13 is also arranged between the fixed reflector 1114 and the display light source 12. The light beam emitted by the display light source 12 can be collimated and converged through the light transmissive lens 13, thereby ensuring the clarity of subsequent projection.

[0071] In some embodiments, the adjusting mechanism 11 further includes a light-transmitting plate 113. The light-transmitting plate 113 is slidably disposed along a first direction. A plurality of light-transmitting holes 1131 through which the reflected light beam passes are spaced along the first direction on the light-transmitting plate 113. The driving assembly 112 is configured to drive the light-transmitting plate 113 to slide along the first direction so that the reflected light beam passes through different light-transmitting holes 1131.

[0072] In this application, the light-transmitting holes 1131 have light-transmitting holes 1131 with a plurality of different apertures. By driving the driving assembly 112 to drive the light-transmitting plate 113 to slide along the first direction, the light beam reflected by the reflecting assembly 111 is emitted through different light-transmitting holes 1131. The aperture to be passed can be selected through horizontal movement adjustment, and the size and position changes can be achieved.

[0073] Specifically, there are mainly two ways to adjust the projection image in this application: 1. By switching the light-transmitting holes 1131 with different apertures, mainly for the change in the distance between the person and the refrigerator, the size of the imaging is adjusted; 2. Without switching the aperture of the light-transmitting holes 1131, by finely adjusting the light-transmitting plate 113, according to the position of the first drawer or the second drawer 23, the change in the imaging position is achieved.

[0074] Among them, the driving assembly 112 includes a rack 1123. The rack 1123 is disposed along the first direction. The rack 1123 is connected to the light-transmitting plate 113 and meshes with the gear set 1122. By driving the driving motor 1121 to drive the gear set 1122 to rotate, the gear set 1122 drives the rack 1123 and the light-transmitting plate 113 to slide along the first direction.

[0075] Among them, the light-transmitting plate 113 and the reflecting assembly 111 can share a set of driving assemblies 112, or can be respectively configured with driving assemblies 112. When the light-transmitting plate 113 and the reflecting assembly 111 share a set of driving assemblies 112, a clutch can be provided to select the driving assembly 112 to drive the reflecting assembly 111 and the light-transmitting plate 113.

[0076] The display device projects the prompt information into the corresponding storage space through the projection device 1. The user can directly view the prompt information at the storage space in the door-open state, and can see the prompt information of each layer of the storage space without repeatedly opening and closing the door, and there is no need to install a display screen for each drawer, with a simple structure and reduced overall cost.

[0077] An embodiment of this application provides a refrigerator, including: a box body 2; and the above-mentioned display device.

[0078] In this application, by providing the above display device, when the refrigerator door is opened, the projection device 1 can project prompt information at the storage space. When taking or placing food, the prompt information can be seen, eliminating the need to repeatedly open and close the refrigerator door. Moreover, there is no need to set up a screen in each storage space, saving costs and reducing the occupation of the internal space of the refrigerator.

[0079] Figure 7 The flowchart showing a control method for a display device provided by an embodiment of this application is presented.

[0080] As Figure 7 shown, an embodiment of this application provides a control method for the above display device, including:

[0081] S1. Detect whether the refrigerator door is opened;

[0082] S2. If the refrigerator door is opened, the projection device 1 projects prompt information into at least one layer of the storage space of the refrigerator.

[0083] In this application, after the refrigerator door is opened, the projection device 1 works to project prompt information into the storage space. The prompt information includes the temperature, humidity, oxygen concentration, and recommended types of stored food in this layer of the storage space, etc., which can provide some visual food preservation guidance schemes for users, help extend the food preservation time, and facilitate users to take food without repeatedly opening and closing the refrigerator door to take food and view the prompt information.

[0084] In some embodiments, the projection device 1 includes an adjustment mechanism 11 for adjusting the projection position of the projection device 1. The display device further includes a first sensor 3 for obtaining the perspective position information of the user. The adjustment mechanism 11 adjusts the projection position of the prompt information according to the perspective position information of the user. Projecting the prompt information into at least one layer of the storage space of the refrigerator by the projection device 1 includes:

[0085] S21. The first sensor 3 obtains the perspective position information of the user, and the adjustment mechanism 11 adjusts the projection position of the prompt information according to the perspective position information of the user.

[0086] In this application, the perspective position information of the user is obtained by the first sensor 3, and the projection position of the prompt information is adjusted by the adjustment mechanism 11 according to the perspective position information of the user, so that the user can clearly see the prompt information at the storage space.

[0087] Specifically, the first sensor 3 is a distance sensor, which is used to detect the user's height and the distance from the refrigerator. Based on the user's height and the distance from the refrigerator, the position of the user's eyes is determined, and then the adjustment mechanism 11 adjusts the projection position according to the set algorithm, ensuring that users of different heights can clearly see the prompt information at different distances, further improving the user experience.

[0088] In some embodiments, the projection device 1 includes an adjustment mechanism 11 for adjusting the projection position of the projection device 1. A second drawer 23 is provided in the storage space of the freezer 22 of the refrigerator. The display device further includes a second sensor 4 for obtaining the position information of the second drawer 23. The adjustment mechanism 11 adjusts the projection position of the prompt information according to the position information of the second drawer 23. Projecting the prompt information into at least one storage space of the refrigerator by the projection device 1 includes:

[0089] S22. The second sensor 4 obtains the position information of the second drawer 23, and the adjustment mechanism 11 adjusts the projection position of the prompt information according to the position information of the second drawer 23.

[0090] In this application, generally multiple second drawers 23 are provided in the freezer 22 of the refrigerator. The second sensor 4 is a position sensor, and each second drawer 23 corresponds to a second sensor 4. The second sensor 4 detects whether the corresponding second drawer 23 is pulled out and the pulling distance of the second drawer 23, so that the projection device 1 selects the corresponding prompt information to project on the corresponding second drawer 23, and ensures that the prompt information always remains on the panel of the second drawer 23 for the convenience of the user to view.

[0091] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, as used herein, the singular forms "a", "an", and "the" may also include the plural forms. The terms "including", "comprising", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0092] Although terms such as first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another region, layer, or section. Unless the context clearly indicates otherwise, terms such as "first" and "second" and other numerical terms do not imply an order or sequence when used in the text. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0093] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A display device, applied to a refrigerator, wherein the refrigerator has multiple storage spaces; characterized in that: The display device comprises a projection device (1), wherein the projection device (1) is arranged on a body (2) of the refrigerator, and the projection device (1) is used to project prompt information into at least one layer of the storage space.

2. The display device according to claim 1, characterized in that The prompt information projected by the projection device (1) includes at least one of temperature, humidity, oxygen concentration, and recommended storage food types.

3. The display device according to claim 1, characterized in that The projection device (1) comprises a first projection device (1), and the first projection device (1) projects prompt information onto the back panel of the refrigerating chamber (21) of the refrigerator.

4. The display device according to claim 3, characterized in that A first drawer is arranged in the storage space of the refrigerating chamber (21), and the first projection device (1) projects prompt information onto a panel of the first drawer.

5. The display device according to claim 1, characterized in that The projection device (1) comprises an adjustment mechanism (11), and the adjustment mechanism (11) is used to adjust the projection position of the projection device (1).

6. The display device according to claim 5, characterized in that: The display device further comprises a first sensor (3), the first sensor (3) being used to obtain the user's viewing angle position information, and the adjustment mechanism (11) adjusts the projection position of the prompt information according to the user's viewing angle position information so that the user can see the prompt information.

7. The display device according to claim 5, characterized in that: A second drawer (23) is provided in the storage space of the freezer compartment (22) of the refrigerator, and the projection device (1) comprises a second projection device (1), wherein the second projection device (1) is used to project prompt information onto a panel of the second drawer (23).

8. The display device according to claim 7, characterized in that: The display device further comprises a second sensor (4), wherein the second sensor (4) is used to obtain position information of the second drawer (23), and the adjustment mechanism (11) adjusts the projection position of the prompt information according to the position information of the second drawer (23), so that the prompt information remains on the panel of the second drawer (23).

9. The display device according to claim 5, characterized in that: The projection device (1) further comprises a display light source (12), and the adjustment mechanism (11) comprises: a reflective component (111), the reflective component (111) being used to reflect the light beam emitted by the display light source (12) and form a reflected light beam; and A driving component (112), wherein the driving component (112) is used to adjust the angle of the reflecting component (111), and is used to adjust the angle of the reflected light beam.

10. The display device according to claim 9, characterized in that: The adjustment mechanism (11) further comprises a light-transmitting plate (113), wherein the light-transmitting plate (113) is slidably arranged along a first direction, and a plurality of light-transmitting holes (1131) are arranged on the light-transmitting plate (113) at intervals along the first direction for the reflected light beam to pass through, and the driving component (112) is used to drive the light-transmitting plate (113) to slide along the first direction so that the reflected light beam passes through different light-transmitting holes (1131).

11. A refrigerator, characterized in that: include: Box (2); as well as A display device as claimed in any one of claims 1 to 10.

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