Display device and household appliance

Abstract

The utility model discloses a display device and a household appliance. The display device comprises a light source and at least one light guide plate, the light source and the light guide plate are arranged in a stacked mode in the first direction, at least one pattern part is arranged on the light guide plate so that the display device can be provided with a plurality of pattern parts, and the light source is configured to emit corresponding light to the corresponding pattern part so that the pattern part can reflect the light. In the display device, the display device can display different pattern parts in the plurality of pattern parts to emit light by turning on the light source, so that the display device is applied to the surface of the shell of the household appliance, the light-emitting patterns are more diversified, the decoration effect is richer, and the display effect is good.

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] In the related art, for the decoration of the appearance of home appliances, the implementation scheme is to form a fixed color or pattern on the shell surface of the home appliance through mold embossing, etching, transfer or screen printing, thereby resulting in a fixed and single display effect of the appearance pattern of the home appliance. Utility Model Content

[0003] 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.

[0004] A display device provided in an embodiment of the present invention includes a light source and at least one light guide plate;

[0005] The light source and the light guide plate are stacked along a first direction, at least one pattern portion is provided on the light guide plate so that the display device has a plurality of pattern portions, and the light source is configured to emit corresponding light to a corresponding pattern portion so that the pattern portion reflects the light.

[0006] In the above display device, different pattern portions among the multiple pattern portions can be illuminated by turning on the light source. In this way, the display device can be used on the surface of the home appliance housing to have more diverse luminous patterns, richer decorative effects and better display effects.

[0007] In some embodiments, the light guide plate includes a light incident surface and a light emitting surface, the light incident surface and the light emitting surface are parallel to each other, the pattern portion is arranged on the light incident surface, and the projection area of ​​the light source on the light emitting surface is greater than or equal to the projection area of ​​the pattern portion on the light emitting surface.

[0008] In some embodiments, the display device includes at least two parallel light guide plates stacked along the first direction, and the light emitting surface of each light guide plate faces the same direction.

[0009] In certain embodiments, the light source comprises a light emitting diode that generates images by intersection of three primary colors.

[0010] In some embodiments, the display device includes a transparent connecting layer, which is arranged between the light guide plates to fix the multiple light guide plates, and the transparent connecting layer is formed of one of a solid adhesive and a liquid adhesive.

[0011] In some embodiments, the display device further includes a light shielding layer, and the light shielding layer, the light source, and the light guide plate are sequentially arranged along the first direction.

[0012] In some embodiments, the display device further includes an electric control module, which is electrically connected to the light source and configured to control turning the light source on and off.

[0013] In some embodiments, the light guide plate includes at least one of a transparent light guide plate, a translucent light guide plate, and a partially transparent light guide plate.

[0014] An embodiment of the present invention provides a household appliance including the display device described in any one of the above embodiments.

[0015] In the above household appliance, the display device can be turned on to make different pattern parts of the multiple pattern parts illuminated. In this way, the display device is used on the surface of the household appliance housing, and the luminous patterns are more diverse, the decorative effect is richer, and the display effect is good.

[0016] 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.

[0017] 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

[0018] 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:

[0019] Figure 1 is an exploded schematic diagram of a display device according to an embodiment of the present utility model;

[0020] Figure 2 It is a structural schematic diagram of a light guide plate according to an embodiment of the present utility model;

[0021] Figure 3 It is a schematic structural diagram of a display device according to an embodiment of the present utility model;

[0022] Figure 4 is another structural schematic diagram of a display device according to an embodiment of the present utility model;

[0023] Figure 5 1 is a schematic diagram of a module of a display device according to an embodiment of the present invention;

[0024] Figures 6 to 9 It is a structural diagram of a household appliance according to an embodiment of the present utility model.

[0025] Description of main component symbols:

[0026] Display device 10 , light source 12 , light guide plate 14 , light incident surface 14 a , light emitting surface 14 b , pattern portion 16 , transparent connection layer 18 , electronic control module 20 , light-transmitting panel 22 , and household appliance 100 . DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] In the related art, for the decoration of the appearance of home appliances, the implementation scheme is to form a fixed color or pattern on the shell surface of the home appliance through mold embossing, etching, transfer or screen printing, thereby resulting in a fixed and single display effect of the appearance pattern of the home appliance.

[0033] See also Figures 1 to 4 The present invention provides a display device 10 including a light source 12 and at least one light guide plate 14.

[0034] The light source 12 and the light guide plate 14 are stacked along a first direction. At least one pattern portion 16 is provided on the light guide plate 14 so that the display device 10 has multiple pattern portions 16 . The light source 12 is configured to emit corresponding light to a corresponding pattern portion 16 so that the pattern portion 16 reflects the light.

[0035] In the above-mentioned display device 10, the light source 12 can be turned on to make the display device 10 display different pattern parts 16 of the multiple pattern parts 16 to emit light. In this way, when the display device 10 is used on the surface of the home appliance housing, the light-emitting patterns are more diverse, the decorative effect is richer, and the display effect is good.

[0036] Specifically, the light guide plate 14 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 14 can form bright light spots or patterns at specific locations.

[0037] The display device 10 includes at least one light guide plate 14. The light source 12 and the light guide plate 14 are stacked along a first direction. Figure 1 As shown, the first direction is the front-to-back direction in the figure.

[0038] At least one pattern portion 16 is provided on the light guide plate 14, so that the display device 10 has multiple pattern portions 16. That is, if the display device 10 includes a single light guide plate 14, multiple pattern portions 16 may be provided on the light guide plate 14, so that the display device 10 has multiple pattern portions 16. Each pattern portion 16 may illuminate and display independently or simultaneously when illuminated by the light source 12. If the display device 10 includes multiple light guide plates 14, each light guide plate 14 may be provided with one or more pattern portions 16, so that the display device 10 has multiple pattern portions 16.

[0039] In this way, the display device 10 can display different pattern portions 16 among the plurality of pattern portions 16 by turning on the light source 12 , thereby making the light-emitting patterns of the display device more diverse and providing richer decorative effects.

[0040] The light guide plate 14 may be a thin plate or a film. In the case where the light guide plate 14 is a film, the thickness of the film needs to be limited to be greater than a certain value to facilitate the arrangement of the light source 12 .

[0041] In one embodiment, the light guide plate 14 includes a substrate, an optical microstructure provided on the surface of the substrate, and a nano-slurry filled in the optical microstructure. The optical microstructure is a groove that is recessed inward from the surface of the substrate, so that it can accommodate the nano-slurry. An optical microstructure is formed on the surface of the substrate, and the nano-slurry is deposited and filled therein, so that the optical microstructure is isolated from the air. By utilizing the high reflectivity and low refractive index surface optical properties of the nano-slurry, the light emitted from the light source 12 (such as the LED light source 12) from the side (light incident surface 14a) of the light guide plate 14 enters the light guide plate 14. The light is then destroyed by the nano-slurry deposited in the optical microstructure filled on the light guide plate 14, thereby reflecting back to the inside of the light guide plate 14 at various angles, and finally the light is emitted from the top surface (light exit surface 14b) of the light guide plate 14 through the optical microstructure.

[0042] Optionally, the material of the light guide plate 14 includes transparent PC (Polycarbonate), PVC (Polyvinyl Chloride), PMMA (Polymethyl Methacrylate), PET (Polyethylene Terephthalate), etc.

[0043] In some embodiments, the light guide plate 14 includes a light incident surface 14a and a light emitting surface 14b, the light incident surface 14a and the light emitting surface 14b are parallel to each other, the pattern portion 16 is arranged on the light incident surface 14a, and the projection area of ​​the light source 12 on the light emitting surface 14b is greater than or equal to the projection area of ​​the pattern portion 16 on the light emitting surface 14b.

[0044] In this way, it can be ensured that the pattern portion 16 can be displayed normally.

[0045] Specifically, the projection area of ​​the light source 12 on the light emitting surface 14b is greater than or equal to the projection area of ​​the pattern portion 16 on the light emitting surface 14b, so that when the light source 12 emits light, the pattern portion 16 reflects light to the light emitting surface 14b, thereby displaying the effect of a luminous pattern.

[0046] Optionally, the light sources 12 may be arranged in various ways on the light incident surface 14 a , such as array, annular, or linear arrangements on the light incident surface 14 a . Alternatively, the light sources 12 may be arranged according to the location of the pattern portion 16 .

[0047] For example, light source 12 located on one side of light incident surface 14a includes multiple lamp beads arranged in a ring. The multiple lamp beads can emit light along light incident surface 14a. After being refracted by light guide plate 14, the light is reflected by pattern portion 16 toward light emitting surface 14b, ultimately presenting a light pattern corresponding to pattern portion 16 on light emitting surface 14b.

[0048] In one embodiment, the display device 10 includes a light guide plate 14, a light incident surface 14a of the light guide plate 14 is provided with a plurality of pattern portions 16, and the plurality of pattern portions 16 are sequentially arranged on the light guide plate 14 along a direction from left to right, and the light source 12 includes a plurality of lamp beads, and the plurality of lamp beads are sequentially arranged along a direction from left to right (such as Figure 1 The left and right directions shown in the figure are arranged in sequence at positions corresponding to different pattern portions 16 on one side of the light incident surface 14a. By controlling the light emission of different lamp beads, the pattern portions 16 at different positions can be controlled to be reflected to the light emitting surface 14b, thereby displaying different light emitting patterns on one side of the light emitting surface 14b.

[0049] In some embodiments, the display device 10 includes at least two parallel light guide plates 14 stacked along a first direction, and the light emitting surface 14 b of each light guide plate 14 faces the same direction.

[0050] In this way, disposing a plurality of light guide plates 14 can increase the number and variety of the pattern portions 16 , thereby enabling the display device 10 to present diverse display effects.

[0051] Specifically, if Figure 1 As shown, the first direction is Figure 1 In the front-to-back direction, multiple light guide plates 14 are arranged parallel and stacked along a first direction. Light emitted by the light source 12 enters the light guide plates 14 through the light incident surface 14a and then exits through the light exit surface 14b. The light exit surface 14b of each light guide plate 14 faces the same direction. Light emitted from the rear light guide plates 14 in the first direction sequentially passes through the front light guide plates 14. As a result, the patterns on all light guide plates 14 can be observed on the light exit surface 14b side of the frontmost light guide plate 14.

[0052] The pattern parts 16 can be provided on the plurality of light guide plates 14 so that the overlapping design of the plurality of light guide plates 14 can present a variety of effects, including two-dimensional plane, three-dimensional depth of field, multiple gradient texture pattern effects, etc.

[0053] In some embodiments, the light source 12 includes a light emitting diode that generates images using three primary colors.

[0054] In this way, the light source 12 can emit light of a preset color.

[0055] Specifically, a three-primary-color light-emitting diode (LED) is a light source 12 composed of red, green, and blue LED chips. Under the influence of a DC power supply, current flows through three independent channels through the red, green, and blue LED chips. When the three colors of light are mixed at different intensities and proportions, a rich variety of color effects can be produced.

[0056] By controlling the current flowing through each color LED chip, the luminous intensity and brightness of the light source 12 can be adjusted, thereby achieving a variety of different colors and brightness changes.

[0057] By controlling the color of light emitted by one or more light sources 12 according to the required display effect, the luminous pattern finally presented by the display device 10 can have different colors. In this way, the display effect of the display device 10 can be enriched, with changes in pattern, color, and brightness.

[0058] Furthermore, the LED light source 12 offers advantages such as high energy efficiency, long lifespan, environmental friendliness, fast response speed, and compact size and light weight. Its high luminous efficiency significantly reduces energy consumption; its fast response speed enhances the quality of the displayed image; and its compact size and light weight facilitate its placement on the light-entering surface 14a of the light guide plate 14, reducing the overall size of the display device 10.

[0059] In some embodiments, the display device 10 further includes a light shielding layer (not shown), and the light shielding layer and the light guide plate 14 are sequentially arranged along the first direction.

[0060] In this way, the light guide plate 14 can be made entirely opaque. When the display device 10 is mounted on the surface of the household appliance 100 , the electrical structure behind the light guide plate 14 can be shielded, making the overall display effect more beautiful.

[0061] Specifically, the display device 10 is used to be installed on the surface of the household appliance 100. A mounting position for the display device 10 is provided in the household appliance 100. Since the light guide plate 14 is made of a light-transmitting material, after the display device 10 is installed in the household appliance 100, other components inside the household appliance 100 will be displayed, resulting in poor display effect of the display device 10.

[0062] Therefore, a light shielding layer may be provided on one side of the light incident surface 14 a of the light guide plate 14 to shield and isolate the light guide plate 14 from other structures behind the light guide plate 14 , thereby making the pattern displayed by the light guide plate 14 clearer.

[0063] See also Figure 1 In some embodiments, the display device 10 includes a transparent connecting layer 18, which is disposed between every two light guide plates 14 to fix the multiple light guide plates 14. The transparent connecting layer 18 is formed of one of a solid adhesive and a liquid adhesive.

[0064] In this way, the plurality of light guide plates 14 can be firmly connected without affecting the transmission of light between the plurality of light guide plates 14 .

[0065] Specifically, the transparent connecting layer 18 has good light transmittance and can fixedly connect multiple light guide plates 14, so that the multiple light guide plates 14 form a relatively integrated structure, which can avoid the surface of the light guide plates 14 being scratched or worn due to relative friction between the multiple light guide plates 14 during transportation, installation and use.

[0066] The transparent connection layer 18 can be formed simply and conveniently by using a solid adhesive or a liquid adhesive.

[0067] Optionally, the transparent connection layer 18 may be formed of a solid adhesive. After curing, the solid adhesive generally provides strong bonding strength, ensuring a tight connection between the multiple light guide plates 14, improving the overall structural stability of the display device 10, and ensuring that the light guide plates 14 are not prone to loosening or falling off due to problems with the adhesive layer during long-term use.

[0068] At the same time, the solid adhesive generally has good weather resistance and can resist the influence of harsh environments such as ultraviolet rays, high temperature, and humidity on the bonding effect, thereby extending the service life of the light guide plate 14.

[0069] Optionally, the transparent connecting layer 18 can be formed of a liquid adhesive. The liquid adhesive has good filling properties and can fully fill the gaps between the light guide plates 14, thereby improving the bonding effect. At the same time, the liquid adhesive can usually be quickly cured at room temperature or medium temperature, thereby shortening the production cycle and improving production efficiency.

[0070] In one embodiment, the transparent connection layer 18 is formed of liquid optical adhesive, and the liquid optical adhesive is cured by UV or heat to form the transparent connection layer 18 between the two light guide plates 14 .

[0071] First, after curing, the liquid optical adhesive is colorless and transparent, and will not affect the appearance of the bonded objects. Second, the liquid optical adhesive has a high light transmittance, typically reaching over 98%, which ensures that light is transmitted unimpeded between the light guide plates 14. Third, the liquid optical adhesive shrinks less in volume during the curing process, which can reduce the stress caused by curing shrinkage, improve the bonding quality, and ensure a firm connection between multiple light guide plates 14. Finally, the liquid optical adhesive can resist the effects of harsh environments such as ultraviolet rays, high temperature, and humidity on the bonding effect, thereby extending the service life of the display device 10.

[0072] In some embodiments, the light guide plate 14 includes at least one of a transparent light guide plate 14 , a translucent light guide plate 14 , and a partially transparent light guide plate 14 .

[0073] In this way, the light-emitting pattern on the light guide plate 14 can present different effects.

[0074] Specifically, the light guide plate 14 may include at least one of a transparent light guide plate 14 , a semi-transparent light guide plate 14 and a partially transparent light guide plate 14 , or a combination of one, two or three thereof.

[0075] The transparent light guide plate 14 can allow light to pass through substantially completely without changing the direction or property of the light. When the light passes through the transparent light guide plate 14, the scene behind the transparent light guide plate 14 can be clearly seen.

[0076] The translucent light guide plate 14 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 14. In this way, the translucent light guide plate 14 can be used to block the components behind the light guide plate 14, so that only the pattern on the light guide plate 14 is displayed on the light-emitting surface 14b of the light guide plate 14, preventing the components behind the light guide plate 14 from being exposed and affecting the display effect.

[0077] The transparent light guide plate 14 has a clear display effect, the translucent light guide plate 14 can make the displayed pattern have a display effect different from that of the transparent light guide plate 14, and the partially transparent light guide plate 14 can achieve a gradient display effect.

[0078] The partially transparent light guide plate 14 may consist of a light-transmitting portion and a light-impermeable portion, or the partially transparent light guide plate 14 may consist of a light-transmitting portion and a semi-transmitting portion, or the partially transparent light guide plate 14 may consist of a light-transmitting portion, a semi-transmitting portion and a light-impermeable portion.

[0079] In the case where the display device 10 has one light guide plate 14 , the light guide plate 14 may be one of a transparent light guide plate 14 , a semi-transparent light guide plate 14 , and a partially transparent light guide plate 14 .

[0080] In the case where the display device 10 has a plurality of light guide plates 14 , the transparency of the light guide plates 14 may be the same or different, and the specific setting may be determined according to actual display needs.

[0081] See also Figure 5 In some embodiments, the display device 10 further includes an electric control module 20 , which is electrically connected to the light source 12 , and is configured to control the light source 12 to be turned on and off.

[0082] In this way, the light source 12 can be turned on and off by the electronic control module 20 to control the display effect of the pattern on the light guide plate 14 .

[0083] Specifically, the electric control module 20 is used to control the lighting state of the light source 12. For example, the electric control module 20 can control the light source 12 to be turned on and off, thereby controlling the pattern portion 16 to emit light or stop emitting light.

[0084] When the display device 10 includes multiple pattern portions 16 and a light source 12 is respectively set on the light incident surface 14a of each light guide plate 14, the electronic control module 20 can respectively control the on or off state of each light source 12, thereby controlling the pattern portion 16 on each light guide plate 14 to emit light or stop emitting light, so that the display device 10 can achieve a dynamic display effect.

[0085] Optionally, by changing the current and voltage of the LED lamp beads, the brightness and color of the light source 12 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 16 can be alternately bright and dark, presenting a breathing light effect.

[0086] Optionally, the electronic control module 20 can make the luminous pattern present a flickering effect by controlling the on and off time of the light source 12 .

[0087] Furthermore, when the light source 12 includes a light-emitting diode that forms an image with three primary colors intersecting, the electronic control module 20 can also adjust the luminous intensity and brightness of the light source 12 by controlling the current flowing through the LED chip of each color, thereby achieving changes in a variety of different colors and brightness.

[0088] In summary, the display device 10 is fabricated by stacking light guide plates 14 with patterned portions 16. The light guide plates 14 are formed by die pressing to form a light-shielding pattern. The light guide plates 14 have light-guiding properties. LED light sources 12 are arranged on the sides of the light guide plates 14. Program instructions issued by an electronic control module control the states of the light sources 12 of the multiple light guide plates 14 to produce desired lighting conditions or texture pattern effects, including but not limited to two-dimensional flat surfaces, three-dimensional depth of field, single-color, multi-color, and multi-gradient texture pattern effects. This increases the precision, flexibility, and diversity of the decorative patterns on the exterior of the home appliance 100.

[0089] See also Figures 6 to 9 , a household appliance 100 provided in an embodiment of the present invention includes the display device 10 of any of the above embodiments.

[0090] In the household appliance 100 , the light source 12 can be turned on to enable the display device 10 to display different pattern portions 16 among the plurality of pattern portions 16 . In this way, the display device 10 is used on the surface of the housing of the household appliance, and the luminous patterns are more diverse, the decorative effect is richer, and the display effect is better.

[0091] Specifically, household appliances 100 include but are not limited to refrigerators, washing machines, air conditioners, range hoods, stoves, dishwashers, heating appliances, water purifiers, water dispensers, disinfection cabinets, electric heating appliances, heating appliances, rice cookers, ovens, induction cookers, sweeping robots, coffee machines, juicers, fans, etc.

[0092] The home appliance 100 is provided with a mounting position for the display device 10 . The display device 10 is mounted on the surface of the home appliance housing and can display a luminous pattern on the surface of the home appliance housing.

[0093] The light guide plate 14 has good light transmittance. Therefore, when the light guide plate 14 is applied to the household appliance 100, it can present a variety of display effects. For example, the light guide plate 14 is arranged on the surface of the observation window in front of the washing machine. Since the light guide plate 14 has good light transmittance, when the light guide plate 14 does not display the luminous pattern, the user can clearly observe the washing condition of the clothes inside the washing machine. When the light guide plate 14 displays the luminous pattern, the luminous pattern can have decorative, prompt or lighting functions to enrich the functions and display effects of the washing machine observation window.

[0094] In some embodiments, the household appliance 100 includes a light-transmitting panel 22 , and the light-emitting surface 14 b of the light guide plate 14 of the display device 10 is fixedly installed toward the light-transmitting panel 22 .

[0095] In this way, the light-transmitting panel 22 has a protective effect on the display device 10 .

[0096] Specifically, the light-transmitting panel 22 is made of semi-transparent glass, plastic, or thin-film printed materials. The light-transmitting panel 22 is disposed on the side of the light guide plate 14 facing the light-emitting surface 14b, and can protect the light-emitting surface 14b of the light guide plate 14 and prevent the pattern layer from being scratched and damaged.

[0097] Optionally, the light-transmitting panel 22 may be a colored light-transmitting panel 22, so that other components behind the light guide plate 14 can be shielded. Alternatively, the light-transmitting panel 22 may be a completely transparent light-transmitting panel 22, so that the display content on the light guide plate 14 can be clearly displayed.

[0098] Optionally, the light-transmitting panel 22 is fixedly connected to the light guide plate 14 of the display device 10 via a transparent connecting layer 18 .

[0099] It should be noted that the above explanations of the implementation and beneficial effects of the display device 10 are also applicable to the household appliance 100 of the embodiment of the present invention, and will not be elaborated here in detail to avoid redundancy.

[0100] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0101] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above implementation methods within the scope of the present invention.

Claims

1. A display device, characterized in that: comprising a light source and at least one light guide plate; The light source and the light guide plate are stacked along a first direction, at least one pattern portion is provided on the light guide plate so that the display device has a plurality of pattern portions, and the light source is configured to emit corresponding light to a corresponding pattern portion so that the pattern portion reflects the light.

2. The display device according to claim 1, wherein The light guide plate includes a light incident surface and a light emitting surface, the light incident surface and the light emitting surface are parallel to each other, the pattern portion is arranged on the light incident surface, and the projection area of ​​the light source on the light emitting surface is greater than or equal to the projection area of ​​the pattern portion on the light emitting surface.

3. The display device according to claim 2, wherein: The display device includes at least two parallel light guide plates stacked along the first direction, and the light emitting surface of each light guide plate faces the same direction.

4. The display device according to claim 3, wherein: The light source includes a light emitting diode that forms an image using intersection of three primary colors.

5. The display device according to claim 3, wherein The display device includes a transparent connection layer, which is arranged between the light guide plates to fix the plurality of light guide plates. The transparent connection layer is formed of one of a solid adhesive and a liquid adhesive.

6. The display device according to claim 1, wherein The display device further includes a light shielding layer, and the light shielding layer, the light source and the light guide plate are sequentially arranged along the first direction.

7. The display device according to claim 1, wherein The display device further 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.

8. The display device according to any one of claims 1 to 7, characterized in that: The light guide plate includes at least one of a transparent light guide plate, a semi-transparent light guide plate and a partially transparent light guide plate.

9. A household appliance, characterized in that: The display device comprises the display device according to any one of claims 1 to 8.

10. The household appliance according to claim 9, 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