Display module and household appliance

Abstract

The utility model relates to the technical field of display technologies, in particular to a display module and a household appliance, the display module comprises a display panel, a digital board arranged on the display panel and a light condensation support covering the display panel and the digital board, the digital board is provided with a plurality of LED wafers, the light condensation support is provided with light holes corresponding to the LED wafers, and the LED wafers are arranged in the light holes. One side, deviating from the digital board, of the light-gathering support is provided with a display film, the light-gathering support is positioned with the digital board and / or the display board, the LED wafers are inversely arranged on the digital board, the digital board is provided with a protective film layer covering the plurality of LED wafers, the position, corresponding to the light-transmitting hole, of the display film is light-transmitting and is provided with a fluorescent layer, and light rays emitted by the LED wafers are emitted out through the fluorescent layer. The protective film layer does not need to be provided with a fluorescent layer, thinning design can be carried out to reduce light leakage, the fluorescent layer is arranged on the display film, the display film is arranged on the light gathering support, stretching can be avoided, and therefore the problem of chromatic aberration caused by non-uniformity of the fluorescent layer can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of display technology, and in particular to a display module and a household appliance. Background Art

[0002] Traditional digital display functions are mainly realized through digital tubes. The cost of digital tubes is relatively high, and they cannot use the same process as surface mount devices. Digital tubes have gradually been replaced by LEDs.

[0003] In the prior art, the LED module for realizing the digital display function adopts a plurality of LED chips, and the plurality of LED chips are covered by a fluorescent film, and then the plurality of light guide holes of the focusing bracket are respectively set corresponding to each / group of LED chips to realize the digital display function. The function of the focusing bracket is to separate the light guide paths of each / group of LED chips from each other to avoid light leakage between each other and affect the final display effect. Among them, the fluorescent film not only performs a one-time packaging protection for all LED chips, but also plays a role in adjusting the color of the light emitted by the LED chips. However, the fluorescent material in the fluorescent film requires a certain thickness to obtain the ideal color adjustment effect, so the overall thickness of the fluorescent film will be relatively large. This causes the light emitted by each / group of LED chips to be emitted outward along the light guide hole of the corresponding focusing bracket, and it is also easy to be emitted through the fluorescent film to the adjacent light guide hole, that is, light leakage occurs. At this time, if the adjacent light guide hole should not be lit, the leaked light will light it up. This causes display errors and affects the final display effect. For example, only when displaying the number "8", all the light guide holes in the digital area need to be illuminated. When other numbers such as the number "6" need to be displayed, some of the light guide holes in the digital area need not be illuminated. However, light leakage may cause areas that should not be illuminated to be illuminated, causing the number "6" to be mistaken for the number "8". Moreover, the fluorescent film pressed together to cover the LED chip will cause local over-stretching of itself, that is, the fluorescent film is uneven as a whole, which makes the distribution of fluorescent powder in the fluorescent film uneven, making it difficult to control the color difference of digital display. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a display module and a home appliance.

[0005] In the first aspect, the present application provides a display module, comprising a display panel, a digital panel arranged on the display panel, and a focusing bracket covering the display panel and the digital panel, wherein the digital panel is provided with a plurality of LED wafers, the focusing bracket is provided with light-transmitting holes corresponding to the LED wafers, and a display film is provided on a side of the focusing bracket away from the digital panel, the focusing bracket is positioned relative to the digital panel and / or the display panel, the LED wafer is flip-chip mounted on the digital panel, a protective film layer covering the plurality of LED wafers is provided on the digital panel, the display film is light-transmitting corresponding to the light-transmitting holes and is provided with a fluorescent layer, and the light emitted by the LED wafer is emitted through the fluorescent layer.

[0006] Optionally, the fluorescent layer is arranged on a side of the display film facing toward or away from the LED wafer; or,

[0007] The fluorescent layer is doped in the light-transmitting portion of the display film corresponding to the light-transmitting hole.

[0008] Optionally, the fluorescent layer covers a light-transmitting portion of the display film corresponding to the light-transmitting hole.

[0009] Optionally, a projection of a light-transmitting portion of the display film corresponding to the light-transmitting hole on the digital board is located within a range of a projection of the light-transmitting hole on the digital board.

[0010] Optionally, the top layer of the display panel is a wiring layer, and the digital board is mounted on the top layer of the display panel and is electrically connected to the wiring layer.

[0011] Optionally, the bottom layer of the display panel is a wiring layer, the digital board is mounted on the bottom layer of the display panel and electrically connected to the wiring layer, and a digital display area corresponding to the digital board or a digital display hollow hole corresponding to the LED wafer is opened on the display panel.

[0012] Optionally, the top layer and / or bottom layer of the display panel is a wiring layer, the digital panel is located on one side of the top layer of the display panel, and pins are provided on the digital panel. The pins pass through the display panel and are electrically connected to the wiring layer.

[0013] Optionally, the display panel is also provided with a graphic display light source, the focusing bracket includes a digital display part corresponding to the digital board and a graphic part corresponding to the display board, the thickness of the digital display part is smaller than the thickness of the graphic part, the graphic part abuts against the display panel, and a light through hole is opened corresponding to the graphic display light source, and the digital board and the display panel are spaced apart to abut against the digital display part.

[0014] Optionally, an auxiliary bracket is provided on the digital board, and the auxiliary bracket abuts against the display panel to support the digital board.

[0015] In the second aspect, the present application provides a household appliance, including the display module, the household appliance including a device body and a panel, the display panel is fixedly connected to the device body, the panel cover is arranged on the side of the focusing bracket away from the display panel and is fixedly connected to the device body, and the display film is in contact with the panel.

[0016] Compared with the prior art, the technical solution provided by the embodiments of the present application has the following advantages:

[0017] In this display module, the LED wafer is flipped on the digital board, and a protective film layer covering multiple LED wafers is provided on the digital board. The display film is transparent at the corresponding light-transmitting hole and is provided with a fluorescent layer. The light emitted by the LED wafer is emitted through the protective film layer and the display film. The protective film layer does not need to be provided with a fluorescent layer, and can be thinned to reduce light leakage and avoid digital display errors. Moreover, the fluorescent layer is provided on the display film, and the display film is provided on the focusing bracket to avoid being stretched, thereby avoiding the problem of uneven fluorescent layer causing color difference in digital display. In addition, the LED wafer is flipped on the digital board, which can avoid the problem of damaging the top lead when the LED wafer is installed upright. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 It is a cross-sectional schematic diagram of the first digital display device described in the embodiment of the present application;

[0021] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure of a digital board of a digital display device;

[0023] Figure 4 for Figure 1 A schematic diagram of the structure of a display panel of a digital display device;

[0024] Figure 5 It is a cross-sectional schematic diagram of a second digital display device according to an embodiment of the present application;

[0025] Figure 6 for Figure 5 A schematic diagram of the structure of a display panel of a digital display device;

[0026] Figure 7 It is a cross-sectional schematic diagram of a third digital display device described in an embodiment of the present application;

[0027] Figure 8 for Figure 7 A schematic diagram of the structure of a digital board of a digital display device;

[0028] Fig. 9 is a cross-sectional schematic diagram of a fourth digital display device described in an embodiment of the present application;

[0029] Fig.10 for Fig. 9 A schematic diagram of the structure of a digital board of a digital display device;

[0030] Fig.11 This is a schematic diagram of the structure of the focusing bracket described in the embodiment of the present application;

[0031] Fig.12 It is a cross-sectional schematic diagram of the fifth digital display device described in the embodiment of the present application.

[0032] Among them, 1. digital board; 11. LED wafer; 12. first pad; 13. positioning hole; 14. pin; 15. auxiliary bracket;

[0033] 2. Protective film layer;

[0034] 3. Focusing bracket; 31. Light-transmitting hole; 32. Light-passing hole;

[0035] 4. display film; 41. light-transmitting portion; 42. fluorescent layer;

[0036] 5. Display board; 51. Second solder pad; 52. Digital display hollow hole. DETAILED DESCRIPTION

[0037] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.

[0039] like Figures 1 to 12As shown, the present application discloses a display module, including a display board 5, a digital board 1 arranged on the display board 5, and a focusing bracket 3 covering the display board 5 and the digital board 1, a plurality of LED wafers 11 are arranged on the digital board 1, the focusing bracket 3 is provided with light-transmitting holes 31 corresponding to the LED wafers 11, and a display film 4 is provided on the side of the focusing bracket 3 away from the digital board 1, and the focusing bracket 3 is positioned with the digital board 1 and / or the display board 5.

[0040] Among them, the focusing bracket 3 is covered on the digital board 1 and the display board 5, so that the light emitted by the LED wafer on the digital board 1 can be irradiated onto the display film 4 through the light-transmitting holes 31 of the focusing bracket 3 to perform digital display. The light source on the display board 5 is similar. At the same time, the focusing bracket 3 limits the light emitted by each light source to the corresponding light-transmitting holes 31 to avoid mutual light leakage between different light-transmitting holes 31, thereby ensuring that each light source only illuminates the display area on the display film 4 corresponding to itself, achieving accurate and good display effects. Therefore, it is necessary to ensure the corresponding position relationship between each light-transmitting hole of the focusing bracket 3 and each light source on the digital board 1 and the display board 5. However, most of the display modules in the prior art currently use traditional digital tubes, which are installed entirely on the display board 5. The traditional digital tube itself is a separate digital display component, which is composed of its own digital display board, LED lights, light guide brackets, digital display films, etc. Therefore, a whole hollow area corresponding to the digital tube is opened on the focusing bracket of the display module to avoid the digital tube. In this case, the focusing bracket of the display module cannot have a mutual positioning or supporting relationship with the digital tube, which is not conducive to ensuring the position accuracy of the focusing bracket or the digital tube. Once the focusing bracket or the digital tube is offset, it will affect the display effect of the display module.

[0041] In the present application, a separate digital tube is eliminated, and the digital board 1 is arranged on the display board 5, so that the digital board 1 and the display board 5 share a focusing bracket 3. In this way, the focusing bracket 3 can be positioned only with the display board 5, or only with the digital board 1, or can be positioned with the display board 5 and the digital board 1 to ensure the position accuracy of the focusing bracket 3 and the digital board 1 on the display board 5, and the focusing bracket 3 is covered on the display board 5 and the digital board 1, so that the display board 5 and the digital board 1 are both attached to one side of the focusing bracket 3, which can also play a role in positioning the digital board 1 to ensure the display effect of the display module.

[0042] The LED wafer 11 is flipped on the digital board 1 , and a protective film layer 2 covering multiple LED wafers 11 is provided on the digital board 1 . The display film 4 is light-transmissive at the corresponding light-transmitting holes 31 and is provided with a fluorescent layer 42 . The light emitted by the LED wafer 11 is emitted through the fluorescent layer 42 .

[0043] It can be understood that in the display module, the LED wafer 11 is flipped on the digital board 1, and the digital board 1 is provided with a protective film layer 2 covering multiple LED wafers 11, the display film 4 is light-transmissive at the corresponding light-transmitting hole 31 and is provided with a fluorescent layer 42, and the light emitted by the LED wafer 11 is emitted through the protective film layer 2 and the fluorescent layer 42 of the display film 4. The protective film layer 2 does not need to be provided with a fluorescent layer, and can be thinned to reduce light leakage, thereby avoiding errors in digital display, and the fluorescent layer 42 is arranged on the display film 4, and the display film 4 is arranged on the focusing bracket 3 to avoid being stretched, thereby avoiding the problem of uneven fluorescent layer 42 causing color difference in digital display.

[0044] In addition, since the LED wafer 11 is flipped on the digital board 1, compared to the situation where the top leads are located at the top when the wafer is mounted upright, the leads of the LED wafer 11 when it is flipped are located on both sides of the LED wafer 11 in a direction parallel to the plane of the digital board 1, or, when the LED wafer 11 is flipped, it is directly mounted on the digital board 1 in a surface-mounted manner without pins, which can avoid the problem of poor contact between the LED wafer 11 and the digital board 1 caused by crushing the top leads when the LED wafer 11 is mounted upright.

[0045] In some embodiments, the fluorescent layer 42 is disposed on a side of the display film 4 facing toward or away from the LED wafer 11 , or the fluorescent layer 42 is doped into a light-transmitting portion 41 of the display film 4 corresponding to the light-transmitting hole 31 .

[0046] Understandably, there are three ways to set the fluorescent layer 42. One is that the fluorescent layer 42 is set on the side of the display film 4 facing the LED wafer 11, such as Figure 2 As shown; another is that the fluorescent layer 42 is provided on the side of the display film 4 away from the LED wafer 11; another is that the fluorescent layer 42 is doped in the light-transmitting portion 41 of the light-transmitting hole 31 corresponding to the display film 4. Among them, it is preferred that the fluorescent layer 42 is provided on the side of the display film 4 facing the LED wafer 11, so that after the display film 4 is provided on the focusing bracket 3, the fluorescent layer 42 is located on the inner side of the display film 4, which can provide protection for the fluorescent layer 42 to avoid being damaged, and compared with doping in the light-transmitting portion 41, it is easier to implement and the cost is lower to set it on the surface of the display film 4.

[0047] It should be noted that the material of the display film 4 can be PET, PC, etc. When the fluorescent layer 42 is disposed on the side of the display film 4 facing or away from the LED wafer 11 , the fluorescent layer 42 is formed by coating fluorescent powder on the display film 4 .

[0048] In some embodiments, the projection of the light-transmitting portion 41 of the display film 4 corresponding to the light-transmitting hole 31 on the digital board 1 is located within the projection range of the light-transmitting hole 31 on the digital board 1 .

[0049] Since the display film 4 needs to be arranged on the light-collecting bracket 3, the light-transmitting portion 41 of the display film 4 needs to be aligned with the light-transmitting hole 31 on the light-collecting bracket 3 when laying the display film 4, so that the light of the LED wafer 11 can be emitted through the light-transmitting portion 41. In this way, in order to reduce the difficulty of assembly, the projection of the light-transmitting portion 41 of the display film 4 corresponding to the light-transmitting hole 31 on the digital board 1 is set to be smaller than the projection of the light-transmitting hole 31 on the digital board 1, that is, the light-transmitting area of ​​the light-transmitting portion 41 is set to be smaller than the cross-sectional area of ​​the light-transmitting hole 31, thereby increasing the redundant error when attaching the display film 4, and facilitating the alignment of the light-transmitting portion 41 of the display film 4 with the light-transmitting hole 31 on the light-collecting bracket 3.

[0050] It is understandable that if the projection of the light-transmitting portion 41 of the display film 4 corresponding to the light-transmitting hole 31 on the digital board 1 is larger than the projection range of the light-transmitting hole 31 on the digital board 1 or the projection of the light-transmitting portion 41 of the display film 4 corresponding to the light-transmitting hole 31 on the digital board 1 is the same as the projection range of the light-transmitting hole 31 on the digital board 1, then when attaching the display film 4, it is necessary to completely align the light-transmitting portion 41 and the light-transmitting hole 31. If the light-transmitting portion 41 deviates, the portion of the light-transmitting portion 41 that deviates from the light-transmitting hole 31 will be blocked by the focusing bracket 3, that is, the light emitted by the LED wafer 11 cannot be emitted from the portion of the light-transmitting portion 41 that deviates from the light-transmitting hole 31, affecting the display effect.

[0051] Specifically, the boundary of the light-transmitting portion 41 and the boundary of the light-transmitting hole 31 have a spacing of at least 0.1 mm at any position, increasing the redundancy difference so that when laying the display film 4, the light-transmitting portion 41 is located within the space corresponding to the boundary of the light-transmitting hole 31, thereby reducing the difficulty of operation.

[0052] For example, in some implementations, the border of the light-transmitting portion 41 and the border of the light-transmitting hole 31 form the same shape, and are both rectangular, and the long sides of the two rectangles are parallel. The length of the rectangle formed by the border of the light-transmitting hole 31 is at least 0.1 mm greater than the length of the border of the light-transmitting portion 41, and the width of the rectangle formed by the border of the light-transmitting hole 31 is at least 0.1 mm greater than the width of the border of the light-transmitting portion 41.

[0053] In some embodiments, the fluorescent layer 42 covers the light-transmitting portion 41 of the display film 4 corresponding to the light-transmitting hole 31 .

[0054] It can be understood that the fluorescent layer 42 covers the light-transmitting portion 41, that is, the projection of the light-transmitting portion 41 on the digital board 1 is located within the projection range of the fluorescent layer 42 on the digital board 1, so that the light emitted by the LED wafer 11 can be completely dimmed through the fluorescent layer 42 of the display film 4, avoiding the situation where the light is not emitted through the fluorescent layer 42.

[0055] Specifically, the boundary of the light-transmitting portion 41 and the boundary of the fluorescent layer 42 have a spacing of at least 0.1 mm at any position.

[0056] For example, in some implementations, the border of the fluorescent layer 42 and the border of the light-transmitting portion 41 form the same shape, and are both rectangular, and the long sides of the two rectangles are parallel. The length of the rectangle formed by the border of the fluorescent layer 42 is at least 0.1 mm greater than the length of the border of the light-transmitting portion 41, and the width of the rectangle formed by the border of the fluorescent layer 42 is at least 0.1 mm greater than the width of the border of the light-transmitting portion 41.

[0057] In some embodiments, the display film 4 is bonded to the light focusing bracket 3. In some implementations, the display film 4 is provided with adhesive backing, and the display film 4 is bonded to the light focusing bracket 3 by the adhesive backing.

[0058] In some embodiments, reference Figure 2 The protective film layer 2 is preferably but not limited to a UV glue layer, that is, the protective film layer 2 is formed by coating UV glue on the digital board 1 and the LED wafer 11. After the UV glue is cured, it can provide protection for the LED wafer 11, and the thickness can be reduced to reduce light leakage.

[0059] For example, refer to Figure 3 The LED wafers 11 on the digital board 1 are arranged in at least four groups, each group includes seven LED wafers 11, and the seven LED wafers 11 in each group form a digital "8", that is, the digital board 1 includes four digital "8". Of course, in other embodiments, the digital board 1 may include one, two, three or more than four digital "8".

[0060] In some embodiments, reference Figure 3 , the above-mentioned focusing bracket 3 and digital board 1 are positioned with each other. Among them, a positioning hole 13 is provided on the digital board 1, and a positioning protrusion that cooperates with the positioning hole 13 is provided on the focusing bracket 3. When the digital board 1 and the focusing bracket 3 are assembled, the positioning protrusion is extended into the positioning hole 13 to realize the positioning of the digital board 1 and the focusing bracket 3. Alternatively, in other embodiments, the focusing bracket and the display board can also be positioned, in which case one of the focusing bracket and the display board is provided with a positioning hole, and the other is provided with a positioning column that cooperates with the positioning hole.

[0061] It should be noted that the top layer or the bottom layer of the display panel 5 is a wiring layer, and the digital board 1 is electrically connected to the wiring layer.

[0062] There are two ways to connect the digital board 1 to the display board 5. One is that the digital board 1 is mounted on the display board 5. The other is that the digital board 1 is connected to the display board 5 through pins.

[0063] When the digital board 1 is attached to the display board 5, refer to Figures 1 to 4 , when the top layer of the display panel 5 is a wiring layer, the digital board 1 is mounted on the top layer of the display panel 5. Figure 3 and Figure 4 As shown, a first solder pad 12 is provided on the digital board 1, and a second solder pad 51 is provided on the top layer of the display board 5. The first solder pad 12 and the second solder pad 51 are welded and connected, thereby realizing electrical connection between the digital board 1 and the display board 5, and realizing relative fixation between the digital board 1 and the display board 5.

[0064] Reference Figure 5 and Figure 6 The bottom layer of the display panel 5 is a wiring layer, and the digital board 1 is mounted on the bottom layer of the display panel 5 and is electrically connected to the wiring layer. Figure 6 As shown, a first pad 12 is provided on the digital board 1 , and a second pad 51 is provided on the bottom layer of the display board 5 . The first pad 12 and the second pad 51 are welded and connected, thereby realizing electrical connection between the digital board 1 and the display board 5 .

[0065] Furthermore, in a specific implementation, Figure 5 and Figure 6 As shown, the display panel 5 is provided with a digital display hollow hole 52 corresponding to the digital display area of ​​the digital board 1. At this time, in order to avoid light leakage, the part of the focusing bracket 3 corresponding to the digital board 1 extends into the digital display hollow hole 52. That is to say, the part of the focusing bracket 3 corresponding to the digital board 1 extends into the digital display hollow hole 52. At this time, the display film 4 can be located outside the digital display hollow hole 52 or inside the digital display hollow hole 52. Or in other implementations, it is also possible that a digital display hollow hole is provided on the display panel corresponding to each LED wafer, and the light emitted by the LED wafer enters the light-transmitting hole through the corresponding digital display hollow hole. In this way, the focusing bracket can be directly connected to the display panel without setting the focusing bracket in the digital display hollow hole, which is convenient for the assembly of the focusing bracket and the display panel.

[0066] When the digital board 1 is connected to the display board 5 via pin 14, refer to Figure 7 and Figure 8 At this time, the top layer or bottom layer of the display board 5 is a wiring layer, the digital board 1 is located on one side of the top layer of the display board 5, and the digital board 1 is provided with pins 14, which penetrate the display board 5 and are electrically connected to the wiring layer.

[0067] It should be noted that the number of the pins 14 and the positions of the pins 14 on the digital board 1 can be set according to actual needs.

[0068] Furthermore, in some embodiments, Fig. 9 and Fig.10 As shown, an auxiliary bracket 15 is provided on the digital board 1 , and the auxiliary bracket 15 abuts against the display board 5 to support the digital board 1 .

[0069] It is understandable that by setting the auxiliary bracket 15, when the digital board 1 is connected to the digital board 1 through the pin 14, the digital board 1 lacks support. At this time, the auxiliary bracket 15 can provide support for the display board 5, thereby further improving the stability of the display board 5, so that the digital board 1 can maintain stably contact with the focusing bracket 3.

[0070] For example, in a specific implementation, referring to Fig. 9 and Fig.10 , the auxiliary brackets 15 are provided with four, and the four auxiliary brackets 15 are arranged in a quadrilateral to improve the stability of the support of the digital board 1. Alternatively, the number of the auxiliary brackets 15 can also be set according to actual needs, such as three, five, etc. In a specific implementation, the auxiliary brackets 15 are PIN pins, and the pins of the digital board 1 are also PIN pins. Both are provided on the digital board 1 in the same process, which can save manufacturing costs.

[0071] In some embodiments, reference Fig.11 The display panel 5 is also provided with a graphic display light source (not shown in the figure), and a light hole 32 is provided on the focusing bracket 3 corresponding to the graphic display light source. The light emitted by the graphic display light source passes through the light hole 32 to display patterns and / or texts.

[0072] Furthermore, the digital board 1 is located on one side of the top layer of the display board 5. When the top layer of the display board 5 is a wiring layer, the graphic display light source is arranged on the top layer of the display board 5, the digital board 1 is located on one side of the top layer of the display board 5, and the focusing bracket 3 abuts against the display board 5. When the bottom layer of the display board 5 is a wiring layer, the graphic display light source is arranged on the bottom layer of the display board 5. In one case, a whole graphic hollow hole is opened in the area where the light hole 32 of the focusing bracket 3 of the display board 5 is located. In this case, the size of the graphic hollow hole is relatively large, and each light hole 32 is projected on the display board 5 within the range surrounded by the graphic hollow hole; in another case, referring to Fig.11 Alternatively, a graphic hollow hole may be provided on the display panel 5 corresponding to the graphic display light source. In this case, the size of the graphic hollow hole is relatively small, and it is sufficient that the light emitted by the graphic display light source can pass through the graphic hollow hole and enter the light hole 32. In this case, each graphic hollow hole corresponds to a light hole 32. In this case, the light emitted by the graphic display light source passes through the graphic hollow hole and the light hole 32 to irradiate the display film.

[0073] In some embodiments, reference Fig.11 and Fig.12The display board 5 is provided with a graphic display light source (not shown in the figure), and the focusing bracket 3 includes a digital display part corresponding to the digital board 1 and a graphic part corresponding to the display board 5. The thickness of the digital display part is less than the thickness of the graphic part. The graphic part abuts against the display board 5, and a light hole 32 is opened corresponding to the graphic display light source. The digital board 1 and the display board 5 are spaced apart to abut against the digital display part.

[0074] In a specific implementation, the display film 4 is laid flat on the side of the focusing bracket 3 away from the digital board 1 and the display board 5, and the thickness difference between the digital display part and the graphic part in the focusing bracket 3 is reflected on the side facing the digital board 1 and the display board 5, that is, the thickness of the digital display part extending from the side of the focusing bracket 3 with the display film 4 toward the display board 5 is smaller than the thickness of the graphic part extending from the side of the focusing bracket 3 with the display film 4 toward the display board 5, so that the digital board 1 needs to abut against the digital display part of the focusing bracket 3, and the digital board 1 needs to be raised relative to the display board 5.

[0075] It can be understood that the graphic part of the focusing bracket 3 is provided with a light hole 32 corresponding to the graphic display light source, and the thickness of the graphic part is set to be greater than the thickness of the digital display part. In this way, the extension length of the light hole 32 can be increased, so that when a certain number of graphic display light sources and the emission angle of the graphic display light source are fixed, the illumination range can be increased, thereby ensuring that each display area of ​​the graphic part can be fully illuminated.

[0076] It should be noted that, in order to control costs, each light hole 32 usually corresponds to a certain number of graphic display light sources. The fewer the number of graphic display light sources, the better. Assuming that the number of graphic display light sources is N, and the emission angle of the graphic display light source is fixed, the illumination range of the N graphic display light sources on the display film 4 is fixed.

[0077] If the irradiation range is not enough at this time, there are two ways to increase the irradiation range. The first is to keep the distance between the display film 4 and the graphic display light source unchanged and increase the number of graphic display light sources; the second is to keep the number of graphic display light sources unchanged and increase the distance between the display film 4 and the graphic display light source, that is, increase the thickness of the focusing bracket 3 in the graphic part, thereby increasing the irradiation range. Among them, the cost of increasing the number of graphic display light sources is relatively high, so the second method is selected here, that is, increasing the thickness of the focusing bracket 3 in the graphic part.

[0078] At this time, it is necessary to consider that the display on the digital board 1 does not need to consider the irradiation range of the LED wafer 11. Even if the LED wafer 11 and the display film 4 are close, there will be no problem of insufficient irradiation range. If the thickness of the digital display part of the focusing bracket 3 is the same as the graphic part, the distance between the LED wafer 11 and the display film 4 will increase and the display brightness will be weakened. Therefore, the thickness of the graphic part can be reduced at this time, that is, the extension length of the light-transmitting hole 31 is reduced to ensure the display brightness of the LED wafer 11 on the display film 4.

[0079] For example, in a specific implementation, the thickness of the digital display part is 4-5 mm, and the thickness of the graphic part is 4-15 mm. In other words, the extension length of the light-transmitting hole 31 is 4-5 mm, and the extension length of the light-passing hole 32 is 4-15 mm.

[0080] Furthermore, in this case, the digital board 1 is electrically connected to the wiring layer of the display board 5 through the pins 14 , and at this time, the top layer or the bottom layer of the display board 5 is the wiring layer.

[0081] It can be understood that since the thickness of the graphic part of the focusing bracket 3 is greater than the thickness of the digital display part, when the graphic part abuts against the display board 5, the digital board 1 contacts the digital display part. At this time, there will be a gap between the digital board 1 and the display board 5. Therefore, the length of the pin 14 is used to realize the electrical connection between the digital board 1 and the display board 5.

[0082] In addition, an auxiliary bracket 15 is provided on the digital board 1, and the auxiliary bracket 15 abuts against the display board 5 to support the digital board 1. By providing the auxiliary bracket 15, the display board 5 can be supported by the auxiliary bracket 15, thereby further improving the stability of the display board 5, so that the display board 5 can stably maintain contact with the focusing bracket 3.

[0083] The present application also provides a household appliance, including the above-mentioned display module, the household appliance includes a device body and a panel, the display panel 5 is fixedly connected to the device body, the panel cover is arranged on the side of the focusing bracket 3 away from the display panel 5 and is fixedly connected to the device body, and the display film 4 is in contact with the panel.

[0084] In some embodiments, the digital board 1 is fixed to the display board 5, and the display board 5 is positioned and fixedly connected to the device body. Specifically, two positioning holes or positioning columns can be diagonally arranged on the display board 5 for matching and positioning with the positioning structure on the device body, and two fixing holes are diagonally arranged on the display board 5 for fixing with the fixing holes on the device body; further, limiting holes or limiting columns can be arranged on the display board 5, and after the focusing bracket 3 is covered on the display board 5 and the digital board 1, the limiting holes or limiting columns are used to match and limit with the limiting structure on the focusing bracket 3 to avoid obvious slippage of the focusing bracket 3 relative to the display board 5; further, the panel cover is arranged on the side of the focusing bracket 3 away from the display board 5, so that the display film 4 arranged on the focusing bracket 3 abuts against the panel, and the panel is fixedly connected to the device body.

[0085] In a specific implementation, a receiving slot for receiving the display module is provided on the device body, and after the panel cover is provided on the focusing bracket 3, the display module is encapsulated in the device body. In a specific implementation, taking the household appliance as a rice cooker as an example, a receiving slot is provided in the cover of the rice cooker, the display module is provided in the receiving slot, the surface cover of the cover encapsulates the display module in the cover, and the surface cover is used as a control panel.

[0086] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0087] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent 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 the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display module, comprising a display panel (5), a digital panel (1) arranged on the display panel (5), and a focusing bracket (3) covering the display panel (5) and the digital panel (1), wherein the digital panel (1) is provided with a plurality of LED wafers (11), the focusing bracket (3) is provided with light-transmitting holes (31) corresponding to the LED wafers (11), and a display film (4) is provided on a side of the focusing bracket (3) away from the digital panel (1), the focusing bracket (3) is positioned relative to the digital panel (1) and / or the display panel (5), and is characterized in that: The LED wafer (11) is flipped onto the digital board (1); a protective film layer (2) covering the plurality of LED wafers (11) is provided on the digital board (1); the display film (4) is light-transmissive at locations corresponding to the light-transmitting holes (31) and is provided with a fluorescent layer (42); and light emitted by the LED wafer (11) is emitted through the fluorescent layer (42).

2. The display module according to claim 1, characterized in that: The fluorescent layer (42) is arranged on a side of the display film (4) facing toward or away from the LED wafer (11); or, The fluorescent layer is doped in the light-transmitting portion of the display film corresponding to the light-transmitting hole.

3. The display module according to claim 1, characterized in that: The fluorescent layer (42) covers the light-transmitting portion (41) of the display film (4) corresponding to the light-transmitting hole (31).

4. The display module according to claim 1, characterized in that: The projection of the light-transmitting portion (41) of the display film (4) corresponding to the light-transmitting hole (31) on the digital board (1) is located within the projection range of the light-transmitting hole (31) on the digital board (1).

5. The display module according to claim 1, characterized in that: The top layer of the display panel (5) is a wiring layer, and the digital board (1) is mounted on the top layer of the display panel (5) and is electrically connected to the wiring layer.

6. The display module according to claim 1, characterized in that: The bottom layer of the display panel (5) is a wiring layer, the digital board (1) is mounted on the bottom layer of the display panel (5) and is electrically connected to the wiring layer, and the display panel (5) is provided with a digital display area corresponding to the digital board (1) or a digital display hollow hole (52) corresponding to the LED wafer (11).

7. The display module according to claim 1, characterized in that: The top layer and / or bottom layer of the display panel (5) is a wiring layer, the digital panel (1) is located on one side of the top layer of the display panel (5), and the digital panel (1) is provided with pins (14), the pins (14) penetrate the display panel (5) and are electrically connected to the wiring layer.

8. The display module according to claim 7, characterized in that: The display panel (5) is also provided with a graphic display light source, the focusing bracket (3) comprises a digital display portion corresponding to the digital board (1) and a graphic display portion corresponding to the display panel (5), the thickness of the digital display portion is smaller than the thickness of the graphic display portion, the graphic display portion abuts against the display panel (5), and a light hole (32) is provided corresponding to the graphic display light source, the digital board (1) and the display panel (5) are spaced apart so as to abut against the digital display portion.

9. The display module according to claim 8, characterized in that: An auxiliary bracket (15) is provided on the digital board (1), and the auxiliary bracket (15) abuts against the display board (5) to support the digital board (1).

10. A household appliance, characterized in that: The household appliance comprises a display module as described in any one of claims 1 to 9, wherein the household appliance comprises a device body and a panel, the display panel (5) is fixedly connected to the device body, the panel cover is arranged on a side of the focusing bracket (3) away from the display panel (5) and is fixedly connected to the device body, and the display film (4) is in contact with the panel.

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