Display device and household appliance

Abstract

The utility model discloses a display device and a household appliance. The display device comprises a light source, a light guide plate and a background layer, the light guide plate and the background layer are arranged in parallel in the first direction, the light source is arranged on one side of the light guide plate in the second direction, the first direction is perpendicular to the second direction, a pattern part is arranged on the light guide plate, the light guide plate is configured to receive light emitted by the light source and reflect the light through the pattern part, and display content of the background layer can be displayed through the light guide plate. According to the display device, after the light source enters the light guide plate, the content of the pattern part can be reflected, and meanwhile, the content of the background layer can be displayed through the light guide plate, so that any pattern can be arranged on the light guide plate, the display device can display the content of the pattern part and the content of the background layer at the same time, and more pattern types can be displayed; meanwhile, the implementation mode is simple, and the implementation cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a display device and a household appliance. Background Art

[0002] With the development trend of intelligent home appliances, the application of interactive display luminous materials innovation in home appliances is becoming more and more extensive.

[0003] In related technologies, the main solutions for implementing different prompt patterns on home appliances are: 1. Ordinary LED (Light Emitting Diode) digital tubes, which display a fixed pattern type and result in a single display effect; 2. Thin-film transistor displays, which are expensive and increase the cost of home appliances. Utility Model Content

[0004] The embodiments of the present invention provide a display device and a household appliance to solve at least one of the above-mentioned technical problems.

[0005] The present invention provides a display device comprising a light source, a light guide plate and a background layer;

[0006] The light guide plate and the background layer are arranged parallel to each other along a first direction, the light source is arranged on one side of the light guide plate along a second direction, the first direction is perpendicular to the second direction, and a pattern portion is arranged on the light guide plate.

[0007] The light guide plate is configured to receive the light emitted by the light source and reflect it through the pattern portion, and is configured so that the display content of the background layer can be displayed through the light guide plate.

[0008] In the above-mentioned display device, after the light source enters the light guide plate, the content of the pattern part can be reflected, and at the same time, the content of the background layer can also be displayed through the light guide plate. In this way, any pattern can be set on the light guide plate, so that the display device can display the content of the pattern part and the background layer at the same time, and more types of patterns can be displayed; at the same time, the implementation method is simple and the implementation cost is low.

[0009] In some embodiments, the light guide plate includes a light incident surface, a light emitting surface, and a bottom surface, the light incident surface and the light emitting surface are perpendicular to each other, the bottom surface and the light emitting surface are parallel to each other, the pattern portion is arranged on the bottom surface, the background layer is arranged on a side of the light guide plate close to the bottom surface, and the light source is arranged on one side of the light incident surface.

[0010] In some embodiments, the display device includes at least two parallel light guide plates, each of which is stacked, and the light emitting surfaces of the light guide plates face the same direction.

[0011] In some embodiments, the display device includes light sources corresponding to the number of the light guide plates, and each of the light sources is correspondingly disposed on a light incident surface of one of the light guide plates.

[0012] In some embodiments, the pattern portions on at least two of the light guide plates are staggered in the vertical direction or the horizontal direction.

[0013] In some embodiments, the display device includes a transparent connecting layer disposed between the bottom surface of one light guide plate and the light exit surface of another light guide plate to securely connect at least two light guide plates. In some embodiments, the background layer includes a patterned layer disposed parallel to and stacked with the plurality of light guide plates along the first direction, and the patterned layer is disposed on one side of the bottom surface.

[0014] In some embodiments, the background layer includes a thin film transistor display screen, the thin film transistor display screen and the light guide plate are stacked along the first direction, and the pattern layer is disposed on one side of the bottom surface.

[0015] In some embodiments, the background layer includes a digital tube assembly. Along the first direction, the digital tube assembly and the light guide plate are stacked and arranged on one side of the bottom surface.

[0016] In some embodiments, the display device includes an electronic control module, which is electrically connected to the light source and configured to control the light source to be turned on and off.

[0017] In some embodiments, the light guide plate is made of a transparent plate, a translucent light guide plate, or a partially transparent light guide plate.

[0018] An embodiment of the present invention provides a household appliance including the display device described in any one of the above embodiments.

[0019] In the above household appliances, the light source can emit light into the light incident surface, and the light emitted by the light source is emitted from the pattern part through the light guide plate. In this way, any pattern can be set on the light guide plate, so that more types of patterns can be displayed; at the same time, the display method is simple and the implementation cost is low.

[0020] In some embodiments, the household appliance includes a light-transmitting panel, and the light-emitting surface of the light guide plate of the display device is fixedly installed toward the light-transmitting panel.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments with reference to the following drawings, in which:

[0023] Figure 1 is an exploded schematic diagram of a display device according to an embodiment of the present utility model;

[0024] Figure 2 It is a structural schematic diagram of a light guide plate according to an embodiment of the present utility model;

[0025] Figure 3 and Figure 4 is another exploded schematic diagram of the display device according to an embodiment of the present invention;

[0026] Figures 5 to 7 This is another exploded schematic diagram of the display device according to the embodiment of the present utility model;

[0027] Figure 8 It is a module schematic diagram of a display device according to an embodiment of the present utility model.

[0028] Description of main component symbols:

[0029] Display device 100, light guide plate 11, light incident surface 11a, bottom surface 11c, first light guide plate 12, second light guide plate 13, third light guide plate 14, light source 15, first light source 15a, second light source 15b, third light source 15c, electronic control module 18, protective layer 19, first pattern portion 22, digital tube assembly 24, second pattern portion 25, third pattern portion 28, first transparent connecting layer 31, second transparent connecting layer 33, third transparent connecting layer 35, thin film transistor display 37, pattern layer 46. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary, and they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] The disclosure herein provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0035] With the continuous development of display technology, more and more household appliances such as water heaters and water purifiers use display panels or touch display panels as operating interfaces to facilitate user operation and enhance user experience.

[0036] Currently, home appliances typically interact with users through display panels. The main display solutions for these panels are: 1. LED (Light Emitting Diode) digital tubes. In this solution, the digital tubes are housed in a housing, which focuses light. This involves the development of molds and light panels, resulting in high design and manufacturing costs. Furthermore, LED digital tubes can only display numbers or letters, with a fixed display type and a monotonous display effect, resulting in a poor user experience.

[0037] 2. Color film display technology displays patterns by arranging light-emitting LEDs on the back of the printed pattern. This solution requires a large number of LED beads to display large-area patterns. The granularity and density of the lighting are cost-intensive, resulting in increased costs and energy consumption.

[0038] 3. Thin Film Transistor (TFT) display: This solution can display a wide variety of content, but it is expensive, which will lead to an increase in the cost of home appliances.

[0039] See also Figure 1 and Figure 2 A display device 100 provided in an embodiment of the present invention includes a light source 15, a light guide plate 11 and a background layer.

[0040] The light guide plate 11 is arranged parallel to the background layer along a first direction, and the light source 15 is arranged on one side of the light guide plate 11 along a second direction. The first direction is perpendicular to the second direction. A pattern portion is provided on the light guide plate 11.

[0041] The light guide plate 11 is configured to receive light emitted by the light source 15 and reflect it through the pattern portion, and the display content of the background layer can be displayed through the light guide plate 11 .

[0042] In the above-mentioned display device 100, after the light source 15 enters the light guide plate 11, it can reflect the content of the pattern part, and at the same time, the content of the background layer can also be displayed through the light guide plate 11. In this way, any pattern can be set on the light guide plate 11, so that the display device 100 can display the content of the pattern part and the background layer at the same time, and more types of patterns can be displayed; at the same time, the implementation method is simple and the implementation cost is low.

[0043] Specifically, the light guide plate 11 and the background layer are arranged in parallel along a first direction. Figure 1As shown, the first direction is the Z-axis direction in the figure. The light guide plate 11 is light-transmissive, and the content on the background layer can be displayed through the light guide plate 11. In this way, the display device 100 can increase the display diversity by setting different patterns on the light guide plate 11 based on the background layer content. For example, the pattern portion on the light guide plate 11 can be an extension or supplement to the background layer content to enrich the display effect of the background layer content.

[0044] The light source 15 is arranged on one side of the light guide plate 11 along the second direction, as shown in FIG. Figure 1 The first direction is perpendicular to the second direction, that is, the light source 15 is arranged on the side of the light guide plate 11, so that the display device 100 can be more compact in the Z-axis direction.

[0045] The light guide plate 11 is a light-transmitting material that can conduct light in a specific direction by utilizing the principle of light reflection. When irradiated by light, the light guide plate 11 can evenly distribute the light over the entire surface and form bright spots or patterns at specific locations.

[0046] In one embodiment, the light guide plate 11 includes a substrate, an optical microstructure provided on the substrate surface, and nano-slurry filled in the optical microstructure. The optical microstructure is a groove sunken from the substrate surface to accommodate the nano-slurry.

[0047] An optical microstructure is formed on the substrate surface and filled with a nano-paste, thereby isolating the optical microstructure from the air. Leveraging the nano-paste's high reflectivity and low refractive index surface optical properties, light from a light source 15 (e.g., an LED light source 15) enters the light guide plate 11 from the side (light incident surface). The nano-paste deposited within the optical microstructure on the bottom surface of the light guide plate 11 disrupts total internal reflection, causing the light to be reflected back into the light guide plate 11 at various angles. Ultimately, the light is emitted from the top (light exit surface) of the light guide plate 11 through the optical microstructure.

[0048] Optionally, the material of the light guide plate 11 includes transparent PC (Polycarbonate), PVC (Polyvinyl Chloride), PMMA (Polymethyl Methacrylate), PET (Polyethylene Terephthalate), etc.

[0049] Optionally, light source 15 employs an LED light source 15 . LED light sources 15 offer advantages such as high energy efficiency, long lifespan, environmental friendliness, fast response speed, and compact size and light weight. Their high luminous efficiency significantly reduces energy consumption; their fast response speed enhances the quality of displayed patterns; and their compact size and light weight facilitate placement on the side of light guide plate 11, reducing the overall size of display device 100.

[0050] In some embodiments, the light guide plate 11 includes a light incident surface 11a, a light emitting surface 11b and a bottom surface 11c, the light incident surface 11a and the light emitting surface 11b are perpendicular to each other, the bottom surface 11c and the light emitting surface 11b are parallel to each other, the pattern portion is arranged on the bottom surface 11c, the background layer is arranged on the side of the light guide plate 11 close to the bottom surface 11c, and the light source 15 is arranged on the side of the light incident surface 11a.

[0051] In this way, the arrangement direction of the light source 15 and the light guide plate 11 is perpendicular to the arrangement direction of the light guide plate 11 and the background layer.

[0052] Specifically, the light guide plate 11 includes adjacent light incident surfaces 11a and a bottom surface 11c. The light source 15 is provided on one side of the light incident surface 11a. A pattern portion is provided on the bottom surface 11c. The light guide plate 11 is configured to receive light emitted by the light source 15 and emit it from the pattern portion.

[0053] The light guide plate 11 includes a light incident surface 11a, a light emitting surface 11b, and a bottom surface 11c. The light incident surface 11a and the light emitting surface 11b are perpendicular to each other, while the bottom surface 11c and the light emitting surface 11b are parallel to each other. The light guide plate 11 is a thin plate or film, that is, the area of ​​the light incident surface 11a is much smaller than the areas of the light emitting surface 11b and the bottom surface 11c. Therefore, by arranging the light source 15 on the light incident surface 11a, a pattern at any position on the bottom surface 11c can be illuminated, eliminating the need to arrange multiple light sources 15 on the bottom surface 11c according to the size of the pattern. This reduces the number of light sources 15 used in the display device 100 and simplifies the layout.

[0054] It should be noted that when the light guide plate 11 is a thin film, the thickness of the film must be greater than a certain value to facilitate the arrangement of the light source 15. Specifically, the thickness of the film is related to the size of the light source 15 and is not limited here.

[0055] In some embodiments, the display device 100 includes a plurality of light guide plates 11 , and a bottom surface 11 c of each light guide plate 11 is provided with a different pattern portion.

[0056] In this way, different pattern parts can be provided as needed, so that the pattern content displayed by the display device 100 is more abundant and flexible.

[0057] Specifically, the display device 100 includes a plurality of light guide plates 11 . A bottom surface 11 c of each light guide plate 11 is provided with a different pattern portion. The plurality of light guide plates 11 may be arranged in parallel or in a stacked manner.

[0058] like Figure 1 、 Figures 5 to 7 As shown, the display device 100 includes a first light guide plate 12, a second light guide plate 13 and a third light guide plate 14, and the bottom surfaces 11c of the first light guide plate 12, the second light guide plate 13 and the third light guide plate 14 are respectively provided with a first pattern portion 22, a second pattern portion 25 and a third pattern portion 28.

[0059] When multiple light guide plates 11 can be arranged in parallel, the first pattern portion 22, the second pattern portion 25 and the third pattern portion 28 can be completely different patterns. In this way, the display device 100 can ultimately display a variety of different patterns. When the display device 100 is used in household appliances, different prompts can be given to the user by setting different patterns and controlling the pattern illumination to prompt the user's human-computer interaction experience.

[0060] When multiple light guide plates 11 can be stacked, the first pattern portion 22, the second pattern portion 25 and the third pattern portion 28 can be different components of a pattern. In this way, the light source 15 can be controlled to emit light so that the first pattern portion 22, the second pattern portion 25 and the third pattern portion 28 are emitted separately or simultaneously, so as to increase the richness of the light-emitting pattern on the display device 100.

[0061] In some embodiments, the display device 100 includes at least two parallel light guide plates 11 . The light guide plates 11 are stacked, and the light emitting surfaces 11 b of the light guide plates 11 face the same direction.

[0062] In this way, the display device 100 can display different pattern portions.

[0063] Specifically, multiple light guide plates 11 are stacked, different pattern portions are located on different light guide plates 11, and the light emitting surfaces 11b of the multiple light guide plates 11 face the same direction, so that patterns on different light guide plates 11 can be observed on the same surface.

[0064] Alternatively, as Figure 3 and Figure 4 As shown, the display device 100 includes a first light guide plate 12, a second light guide plate 13 and a third light guide plate 14, and the light source 15 includes a first light source 15a, a second light source 15b and a third light source 15c. When the display device 100 has multiple light guide plates 11, the first light source 15a, the second light source 15b and the third light source 15c can be set on the light incident surfaces 11a of the first light guide plate 12, the second light guide plate 13 and the third light guide plate 14 respectively. The light source 15 is in direct contact with the light incident surface 11a of each light guide plate 11. In this way, when the light source 15 of each light guide plate 11 is controlled to emit light separately, it will not affect other light guide plates 11.

[0065] Optionally, when the display device 100 includes multiple light sources 15, the multiple light sources 15 can be the same color, so that the pattern portions on different light guide plates 11 display a uniform color. Alternatively, the multiple light sources 15 can be different colors. In this way, when multiple light guide plates 11 are stacked, the pattern portions at the same position can have mixed colors, or the pattern portions at different positions can display different colors, thereby enriching the display content of the display device 100.

[0066] Optionally, multiple light guide plates 11 may share one light source 15. The same light source 15 can make the pattern portions on multiple light guide plates 11 emit light simultaneously, thereby facilitating control of the display device 100.

[0067] In some embodiments, the pattern portions on at least two light guide plates 11 are staggered in the vertical direction or the horizontal direction.

[0068] In this way, the pattern portions on the plurality of light guide plates 11 do not affect each other, resulting in a better display effect.

[0069] Specifically, if Figure 1 、 Figures 5 to 7 As shown, multiple light guide plates 11 are stacked, and the pattern portions on the multiple light guide plates 11 are staggered in the vertical or horizontal direction. When each pattern portion emits light, it does not affect other pattern portions. Furthermore, multiple pattern portions can be arranged in an array to form different display effects.

[0070] In other embodiments, the pattern portions on multiple light guide plates 11 may have overlapping parts in the vertical direction or the horizontal direction. In this way, the pattern portions on multiple light guide plates 11 can be displayed in coordination to produce richer patterns, or light sources of different colors can be set on different light guide plates 11 to make the overlapping pattern portions have a mixed color effect.

[0071] In some embodiments, the display device 100 includes a transparent connecting layer, which is disposed between the bottom surface 11 c of one light guide plate 11 and the light emitting surface 11 b of another light guide plate 11 to fixedly connect at least two light guide plates 11 .

[0072] In this way, the multiple light guide plates 11 are bonded and stacked, so that the multiple light guide plates 11 are integrated, which is convenient for transportation and assembly.

[0073] Specifically, multiple light guide plates 11 are seamlessly bonded to each other through solid or liquid optical glue and stacked together. Then, the light source 15 on the side of each layer of light guide plate 11 can be controlled to switch on and off respectively, so that the pattern parts on different light guide plates 11 can be illuminated, and finally the effect of different patterns emitting light in sequence or at the same time is presented. Multiple light guide plates 11 are bonded and stacked to make the multiple light guide plates 11 integrated, which is convenient for transportation and assembly, and is beneficial for protecting the light emitting surface 11b of the light guide plate 11, and can avoid scratches and damage to the light guide plate 11. In one embodiment, the transparent connecting layer includes a first transparent connecting layer 31, a second transparent connecting layer 33 and a third transparent connecting layer 35, such as Figure 1 As shown, the second transparent connecting layer 33 is arranged between the bottom surface 11c of the first light guide plate 12 and the light exit surface 11b of the second light guide plate 13, and the third transparent connecting layer 35 is arranged between the bottom surface 11c of the second light guide plate 13 and the light exit surface 11b of the third light guide plate 14.

[0074] Furthermore, the household appliance includes a light-transmitting panel 19 , and the light-emitting surface 11 b of the light guide plate 11 of the display device 100 is fixedly mounted toward the light-transmitting panel 19 . The light-transmitting panel 19 and the light-emitting surface 11 b of the first light guide plate 12 are fixedly connected via a first transparent connecting layer 31 .

[0075] See also Figure 5 In some embodiments, the background layer includes a pattern layer 46 . Along the first direction, the pattern layer 46 is parallel to and stacked with the plurality of light guide plates 11 , and the pattern layer 46 is disposed on one side of the bottom surface 11 c .

[0076] In this way, the display content of the display device 100 can be enriched.

[0077] Specifically, because the light guide plate 11 is made of a transparent or translucent material, the pattern layer 46 can be seen through the light guide plate 11 regardless of whether the pattern layer on the light guide plate 11 is emitting light or not. The pattern layer 46 is disposed on the side opposite the bottom surface 11 c, and the content of the pattern layer 46 can be displayed on the side of the display device 100 that displays the pattern. That is, a background pattern layer 46 can be formed on the back side of the light guide plate 11. When viewed from the light-emitting side of the light guide plate 11, the pattern layer 46 can serve as a background for the pattern portion on the light guide plate 11. Combined with the content of the pattern layer 46, the display device 100 can present a richer display effect.

[0078] Alternatively, a spraying process may be used to manufacture the color pattern layer 46. In this way, the display effect of the display device 100 may be made richer.

[0079] See also Figure 6 In some embodiments, the background layer includes a thin film transistor display screen 37 , which is parallel to and stacked with the light guide plate 11 along the first direction, and the pattern layer 46 is disposed on one side of the bottom surface 11 c .

[0080] In this way, the display content of the display device 100 can be enriched.

[0081] Specifically, thin-film transistor display technology sandwiches a layer of liquid crystal material between two glass substrates and embeds thin-film transistors (TFTs) as pixel switches on the lower glass substrate. When current passes through the TFT, an electric field is generated in the liquid crystal layer, causing the liquid crystal molecules to deflect, thereby changing the polarization direction of the light. The light is then precisely controlled through the upper polarizer and color filter to form an image.

[0082] Since the light guide plate 11 is made of transparent material, a thin film transistor display screen 37 can be superimposed on the back side of the light guide plate 11. When the pattern layer on the light guide plate 11 emits light or not, the display content of the thin film transistor display screen 37 can be seen through the light guide plate 11.

[0083] Thus, the thin film transistor display screen 37 and the light guide plate 11 cooperate to enable the display device 100 to have multiple display modes. For example, the pattern layer 46 on the light guide plate 11 and the thin film transistor display screen 37 can be used separately.

[0084] Alternatively, the two can be used in combination, with the thin film transistor display screen 37 and the pattern on the light guide plate 11 being coordinated to form a richer display effect and different display functions.

[0085] See also Figure 7 In some embodiments, the background layer includes a digital tube assembly 24. Along the first direction, the digital tube assembly 24 is stacked with the light guide plate 11 and the digital tube assembly 24 is arranged on one side of the bottom surface 11c.

[0086] In this way, the display content of the display device 100 can be enriched.

[0087] Specifically, the digital tube assembly 24 and the light guide plate 11 can be arranged side by side, or they can be stacked, with the digital tube assembly 24 arranged behind the light guide plate 11. Because the light guide plate 11 is made of a transparent material, the light output of the digital tube assembly 24 can be displayed on the light-emitting side of the light guide plate 11. In this way, the light guide plate 11 and the digital tube assembly 24 can be used in combination or separately, thereby enriching the display functions of the display device 100.

[0088] The digital tube assembly 24 can display numbers or letters, and the light guide plate 11 can display pre-designed pattern content. After the light guide plate 11 and the digital tube assembly 24 are combined, the display content of the display device 100 can be expanded.

[0089] For example, the pattern on the light guide plate 11 can provide the user with function or status prompts, and the display content of the digital tube component 24 can provide the user with timing prompts. The combination of the light guide plate 11 and the digital tube component 24 can make the display content more practical and enrich the types of display content.

[0090] See also Figure 8 In some embodiments, the display device 100 includes an electronic control module 18 , which is electrically connected to the light source 15 , and is configured to control the light source 15 to be turned on and off.

[0091] In this way, the pattern can be controlled to emit light or stop emitting light by the electronic control module 18 .

[0092] Specifically, the electric control module 18 is used to control the lighting state of the light source 15. For example, the electric control module 18 can control the light source 15 to be turned on and off, thereby controlling the pattern portion to emit light or stop emitting light.

[0093] When the display device 100 includes multiple pattern portions and a light source 15 is respectively provided on the light incident surface 11a of each light guide plate 11, the electronic control module 18 can respectively control the on or off state of each light source 15, thereby controlling the pattern portion on each light guide plate 11 to emit light or stop emitting light, so that the display device 100 can achieve a dynamic display effect.

[0094] Optionally, by changing the current and voltage of the LED lamp beads, the brightness and color of the light source 15 can be adjusted, so that the pattern can have a richer display effect. For example, by changing the current and voltage of the LED lamp beads, the pattern part can be alternately bright and dark, presenting a breathing light effect.

[0095] Optionally, the electronic control module 18 can make the luminous pattern present a flickering effect by controlling the on and off time of the light source 15 .

[0096] In some embodiments, the light guide plate 11 includes at least one of a transparent light guide plate, a semi-transparent light guide plate, or a partially transparent light guide plate.

[0097] In this way, the light-emitting pattern on the light guide plate 11 can present different effects.

[0098] Specifically, the light guide plate 11 may include at least one of a transparent light guide plate 11 , a semi-transparent light guide plate 11 and a partially transparent light guide plate 11 , or a combination of one, two or three thereof.

[0099] The transparent light guide plate 11 allows light to pass substantially completely without changing the direction or properties of the light. When light passes through the transparent light guide plate 11, the scene behind the transparent light guide plate 11 can be clearly seen.

[0100] The translucent light guide plate 11 allows some light to pass through, but the light is scattered or absorbed as it passes through, causing the light to become blurred or weakened, making it difficult to clearly see the scene behind the translucent light guide plate 11. In this way, the translucent light guide plate 11 can be used to block the components behind the light guide plate 11, so that only the pattern on the light guide plate 11 is displayed on the light-emitting surface 11b of the light guide plate 11, preventing the components behind the light guide plate 11 from being exposed and affecting the display effect.

[0101] The transparent light guide plate 11 has a clear display effect, the translucent light guide plate 11 can make the displayed pattern have a display effect different from that of the transparent light guide plate 11, and the partially transparent light guide plate 11 can achieve a gradient display effect.

[0102] The partially transparent light guide plate 11 may consist of a light-transmitting portion and a light-impermeable portion, or the partially transparent light guide plate 11 may consist of a light-transmitting portion and a semi-transmitting portion, or the partially transparent light guide plate 11 may consist of a light-transmitting portion, a semi-transmitting portion and a light-impermeable portion.

[0103] In the case where the display device 100 has one light guide plate 11 , the light guide plate 11 may be one of a transparent light guide plate 11 , a semi-transparent light guide plate 11 , and a partially transparent light guide plate 11 .

[0104] In the case where the display device 100 has a plurality of light guide plates 11 , the transparency of the light guide plates 11 may be the same or different, and the specific setting may be determined according to actual display needs.

[0105] In summary, the display device 100 provided by the present invention can use multiple light guide plates 11 to be stacked, set different patterns on each light guide plate 11, and control each pattern to emit light or stop emitting light, so that the type and content of the pattern on the display device 100 can be designed according to the specific application product needs.

[0106] Among them, the display device 100 adopts a multi-layer transparent, translucent or partially transparent material stacked structure with textured pattern parts to form a light guide plate 11, and a pattern layer 46 is formed by mold pressing. The LED light source 15 is arranged on the side of the light guide plate 11, and the light-emitting state of the light source 15 of the multi-layer light guide plate 11 is controlled by the program instructions issued by the electronic control module 18, thereby realizing effective interactive information transmission and completing functional interaction.

[0107] Since the light guide plate 11 is transparent or semi-transparent, when a plurality of light guide plates 11 are stacked, the display device 100 can switch between different patterns to achieve a dynamic display effect.

[0108] In addition, the light guide plate 11 can be combined with different reality technologies to present technical solutions of different price segments, different use scenarios and different user interaction experiences, has the advantages of reducing material cost, improving product material interaction design freedom, while also considering the smart product technology, meeting the product intelligent demand, etc.

[0109] The display device 100 according to any one of the above embodiments is provided in the household appliance.

[0110] In the above household appliance, the light source 15 can reflect the content of the pattern part after entering the light guide plate 11, and the content of the background layer can also be displayed through the light guide plate 11. In this way, any pattern can be set on the light guide plate 11, so that the display device 100 can display the content of the pattern part and the background layer at the same time, and the type of the displayed pattern is more; at the same time, the implementation is simple and the implementation cost is low.

[0111] Specifically, the display device 100 is installed on the household appliance to form a display panel that can be used for human-computer interaction.

[0112] The household appliance includes a controller, and the controller is electrically connected with the electric control module 18 of the display device 100. The current state of the household appliance is used to control the electric control module 18 of the display device 100 through the controller to control the opening or closing state of the light source 15, so that the display device 100 displays the pattern part corresponding to the current state or the current function of the household appliance to prompt the user for operation.

[0113] Alternatively, the controller can control the pattern part corresponding to the operation instruction to emit light and prompt the user for operation when receiving various operation instructions of the user.

[0114] Therefore, the display device 100 can realize human-computer interaction, enhance the technology of the smart product, and improve the user's experience.

[0115] The household appliance includes but is not limited to a refrigerator, a washing machine, an air conditioner, a smoke machine, a stove, a dishwasher, a fuel heater, a water purifier, a water dispenser, a disinfection cabinet, an electric heater, a fuel heater, a rice cooker, an oven, an induction cooker, a sweeping robot, a coffee machine, a juicer, a fan, etc.

[0116] In some embodiments, the household appliance includes a light-transmitting panel 19, and the light-emitting surface 11b of the light guide plate 11 of the display device 100 is fixedly installed towards the light-transmitting panel 19.

[0117] In this way, the light-transmitting panel 19 has a protection effect on the display device 100.

[0118] Specifically, the light-transmitting panel 19 is made of semi-transparent glass, plastic, film printing material, and is arranged on the side of the light guide plate 11 facing the light emitting surface 11b, so as to protect the light emitting surface 11b of the light guide plate 11 and avoid the pattern part from being damaged by scratching.

[0119] Optionally, the light-transmitting panel 19 and the light guide plate 11 of the display device 100 are fixedly connected through a transparent connecting layer.

[0120] It should be noted that the above explanations and descriptions of the embodiments and advantages of the display device 100 also apply to the household appliance of the embodiments of the present application, and thus will not be described in detail herein to avoid redundancy.

[0121] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0122] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A display device, characterized in that: Including light source, light guide plate and background layer; The light guide plate and the background layer are arranged parallel to each other along a first direction, the light source is arranged on one side of the light guide plate along a second direction, the first direction is perpendicular to the second direction, and a pattern portion is arranged on the light guide plate. The light guide plate is configured to receive the light emitted by the light source and reflect it through the pattern portion, and is configured so that the display content of the background layer can be displayed through the light guide plate.

2. The display device according to claim 1, wherein The light guide plate includes a light incident surface, a light emitting surface and a bottom surface, the light incident surface and the light emitting surface are perpendicular to each other, the bottom surface and the light emitting surface are parallel to each other, the pattern portion is arranged on the bottom surface, the background layer is arranged on a side of the light guide plate close to the bottom surface, and the light source is arranged on one side of the light incident surface.

3. The display device according to claim 2, wherein: The display device includes at least two parallel light guide plates, each of which is stacked and has light emitting surfaces facing the same direction.

4. The display device according to claim 3, wherein: The display device includes light sources corresponding in number to the light guide plates, and each light source is correspondingly arranged on a light incident surface of one of the light guide plates.

5. The display device according to claim 3, wherein The pattern portions on at least two of the light guide plates are staggered in the vertical direction or the horizontal direction.

6. The display device according to claim 2, wherein: The display device comprises a transparent connection layer, which is arranged between the bottom surface of one light guide plate and the light emitting surface of another light guide plate to fixedly connect at least two light guide plates.

7. The display device according to claim 6, wherein: The background layer includes a pattern layer. Along the first direction, the pattern layer is parallel to and stacked with the plurality of light guide plates, and the pattern layer is arranged on one side of the bottom surface.

8. The display device according to claim 7, wherein: The background layer includes a thin film transistor display screen. Along the first direction, the thin film transistor display screen and the light guide plate are stacked, and the pattern layer is arranged on one side of the bottom surface.

9. The display device according to claim 6, wherein: The background layer includes a digital tube assembly. Along the first direction, the digital tube assembly and the light guide plate are stacked and arranged on one side of the bottom surface.

10. The display device according to claim 1, wherein The display device includes an electric control module, which is electrically connected to the light source and configured to control the light source to be turned on and off.

11. The display device according to any one of claims 1 to 10, characterized in that: The light guide plate is made of a transparent plate, a semi-transparent light guide plate or a partially transparent light guide plate.

12. A household appliance, characterized in that: The display device comprises any one of claims 1 to 11.

13. The household appliance according to claim 12, characterized in that The household appliance comprises a light-transmitting panel, and the light-emitting surface of the light guide plate of the display device is fixedly installed toward the light-transmitting panel.

Images