CN212380552U - Display device and refrigerator - Google Patents
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- CN212380552U CN212380552U CN202020724435.1U CN202020724435U CN212380552U CN 212380552 U CN212380552 U CN 212380552U CN 202020724435 U CN202020724435 U CN 202020724435U CN 212380552 U CN212380552 U CN 212380552U
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Abstract
The utility model provides a display device and refrigerator, include: the display panel comprises a communication module and a display panel mainboard, wherein the communication module is integrated on the display panel mainboard; the communication module comprises an antenna; a board splitting area is formed on the display board main board corresponding to the position of the antenna, and the orthographic projection distance from any point in the board splitting area to the antenna on the display board main board is smaller than or equal to a preset threshold value, so that the frequency of the antenna is adjusted by adjusting the area of the board splitting area. The utility model discloses a frequency of antenna can obtain convenient effective correction along with different installation environment under the display device uses the circumstances of universalization communication module, and communication module can the diversified equipment environment of adaptation, and then, the display device's that has the radio communication function mounted position also can set up at will. Moreover, the radiation efficiency of the antenna is ensured, the wireless communication performance of the display device is reliably ensured, the installation cost is effectively reduced, and the installation is convenient.
Description
Technical Field
The utility model relates to a display device technical field especially relates to a display device and refrigerator.
Background
Along with the intelligent development of household appliances, the use requirements of the display device are met in the environments of refrigerators, air conditioners, washing machines and the like, and the wireless communication capacity is provided for the display device through the cable connection of the communication module and the display device. The miniaturized design of the communication module results in limited working bandwidth of the communication antenna, and when the communication module is installed in different environments, the communication antenna needs to be specifically debugged and optimized according to the characteristics of environment materials, for example, different antennas are respectively used in different environments such as plastic, metal, glass, ceramic and the like to ensure the performance. Meanwhile, if the communication module is not subjected to design change and the environment is not subjected to targeted optimization, the communication antenna is influenced by the dielectric of the material of the household appliance to generate frequency deviation, and the performance is subject to unequal performance loss of 3-10 dB.
The universalization requirement is expected to adapt to the equipment environments of various types and models by using a universalization communication module. At present, the communication module is connected with a display device through a cable, an antenna design scheme which sacrifices the resonance depth and the radiation efficiency of an antenna can be adopted, and a more appropriate place is selected to install the universal communication module on the household electrical equipment, so that a wider working bandwidth is provided. However, the effect of compatible work can be achieved under the condition that the frequency offset is not large in the installation environment; and cables between the display device and the communication module need to be installed in an installation environment by opening a cable installation groove and the like.
The equipment environment that has communication module can the adaptation like this is very limited, and the radiation efficiency of antenna receives the influence easily moreover, and display device's wireless communication performance is limited, and display device's setting is comparatively difficult, the higher problem of installation cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, the present invention provides a display device and a refrigerator.
The utility model provides a display device, it includes: the communication module is integrated on the display panel mainboard; the communication module comprises an antenna;
a board splitting area is formed on the display board main board corresponding to the position of the antenna, and the orthographic projection distance from any point in the board splitting area to the antenna on the display board main board is smaller than or equal to a preset threshold value, so that the frequency of the antenna is adjusted by adjusting the area of the board splitting area.
Optionally, an orthographic projection of the clearance area of the antenna on the display panel main board is partially overlapped with the board dividing area, and a first overlapping area is formed in the board dividing area.
Optionally, the orthographic projection of the communication module on the display panel main board is partially overlapped with the board splitting area, and a second overlapping area and an adjusting area except for the second overlapping area are formed in the board splitting area; the first overlap region is located within the second overlap region.
Optionally, at least one edge of the adjustment region coincides with a side edge of the display panel main board.
Optionally, the shape of the board dividing area is rectangular, and the board dividing area includes a first corner corresponding to a corner of the main board of the display board; the second overlapping area is positioned at a second corner, opposite to the first corner, of the board splitting area; two adjacent sides of the first corner correspond to two sides of the adjusting area.
Optionally, the area of the adjusting region is greater than or equal to 37 square millimeters.
Optionally, the sub-board area is formed by an array of through holes.
Optionally, the through hole array includes any one of a circular hole array, a square hole array and a triangular hole array.
Optionally, the display device further comprises a display panel electrically connected to the first side of the display panel main board; the communication module comprises a WIFI module, and the WIFI module is integrated on a second side face, opposite to the first side face, of the display panel main board.
Further, a refrigerator, comprising: the display device and the refrigerator door body provided with the display device are characterized in that the display device is arranged on the refrigerator door body.
According to the above technical scheme, the embodiment of the utility model provides an at least have following advantage and positive effect:
the display device comprises a communication module and a display panel mainboard, wherein the communication module is integrated on the display panel mainboard; the display panel and the communication module are integrated together to form the display device with the communication function, and the display device is convenient to mount and effectively reduces the mounting cost when being mounted.
Secondly, the communication module comprises an antenna; and a board dividing region is formed on the display board main board corresponding to the position of the antenna, the orthographic projection distance from any point in the board dividing region to the antenna on the display board main board is smaller than or equal to a preset threshold value, and further, the board dividing region arranged near the antenna can effectively influence the dielectric constant of the antenna load environment. The comprehensive dielectric constant of the antenna radiation environment can be adjusted by adjusting the area of the sub-board area, and then the frequency of the antenna is adjusted. The frequency of the antenna can be conveniently and effectively corrected along with different installation environments under the condition of using the universal communication module, the communication module can adapt to diversified equipment environments, and then the installation position of the display device with the wireless communication function can also be set at will. Moreover, the radiation efficiency of the antenna is ensured, and the wireless communication performance of the display device is reliably ensured.
Drawings
Fig. 1 is a side view of a display device according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of a display device according to an embodiment of the present invention;
fig. 3 is a rear view of a display device according to an embodiment of the present invention;
fig. 4 shows a schematic structural diagram of a refrigerator according to an embodiment of the present invention.
The reference numerals are explained below:
100. a display device;
1. a communication module; 11. an antenna; 12. a communication module main board; 121. a headroom region; 122. a shield case;
2. a display panel main board; 21. dividing a board area; 211. a first overlap region; 212. a second recombination zone; 213. a conditioning region; 214. a first corner; 215. a second corner;
3. a display panel;
4. a display panel housing;
5. a touch spring;
200. a refrigerator;
6. a refrigerator door body.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and the like. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present embodiment can be understood by those of ordinary skill in the art according to specific situations.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.
In the related art, the communication module is connected with the display device through a cable, an antenna design scheme which sacrifices the resonance depth and the radiation efficiency of the antenna can be adopted, and a more appropriate place is selected on the household electrical appliance to install the universal communication module, so that a wider working bandwidth is provided. However, the effect of compatible work can be achieved under the condition that the frequency offset is not large in the installation environment; and cables between the display device and the communication module need to be installed in an installation environment by opening a cable installation groove and the like.
The equipment environment that has communication module can the adaptation like this is very limited, and the radiation efficiency of antenna receives the influence easily moreover, and display device's wireless communication performance is limited, and display device's setting is comparatively difficult, and installation cost is higher.
Fig. 1 is a side view of a display device 100 according to an embodiment of the present invention. Fig. 2 is an exploded view of a display device 100 according to an embodiment of the present invention. Fig. 3 is a rear view of the display device 100 according to the embodiment of the present invention.
Referring to fig. 1, 2, and 3, a display device 100 is provided in the present exemplary embodiment. The display device 100 includes a communication module 1 and a display panel main board 2, wherein the communication module 1 is integrated on the display panel main board 2; the display panel main board 2 and the communication module 1 are integrated together to form the display device 100 with a communication function, and then the display device 100 is convenient to install when being installed, and the installation cost is effectively reduced.
The communication module 1 comprises an antenna 11; and a board dividing region 21 is formed on the display board main board 2 corresponding to the antenna 11, and the orthographic projection distance from any point in the board dividing region 21 to the antenna 11 on the display board main board 2 is less than or equal to a predetermined threshold, so that the board dividing region 21 arranged near the antenna 11 can effectively influence the dielectric constant of the antenna load environment. The display panel main board 2 may be a PCB board made of FR4 material.
Further, the frequency of the antenna can be adjusted by adjusting the area of the divided plate region 21 to adjust the overall dielectric constant of the radiation environment of the antenna 11. In the case of using the universal communication module 1, the frequency of the antenna 11 can be easily and effectively corrected according to different installation environments, the communication module 1 can be adapted to various installation environments, and further, the installation position of the display device 100 having a wireless communication function can be set at will. And the radiation efficiency of the antenna 11 is ensured and the wireless communication performance of the display apparatus 100 is reliably ensured.
The distance from any point in the board splitting area 21 to the orthographic projection of the antenna 11 on the display board main board 2 is smaller than or equal to a predetermined threshold, and may be a distance from any point in the board splitting area 21 to a geometric center of the orthographic projection of the antenna 11 on the display board main board 2, or a distance from any point in the board splitting area to one side of the orthographic projection of the antenna 11 on the display board main board 2.
The predetermined threshold may be a distance 1 to 3 times the length or width of the antenna, or may be some value of 3-25mm, such as 2mm, 3mm, 5mm, etc. A distance threshold value that ensures that the material of the main panel 2 of the display panel in the panel dividing region 21 has an effective influence on the dielectric of the antenna 11 can be selected and set according to the radiation performance of the antenna.
The area of the board dividing region 21 can be adjusted by cutting materials with different areas of the board dividing region 21, so that the comprehensive dielectric constant of the antenna radiation environment is reduced, and the communication module which is originally installed in the high dielectric constant environment and has frequency offset can be restored to work to a target frequency band, for example, a 2.4GHz frequency band.
Further, the communication module 1 further includes a communication module main board 12, the antenna 11 is disposed on the communication module main board 12, and the antenna 11 has a conventional clearance area 121 on the communication module main board 12 (the area is set to be a clearance area without materials made of other materials, and only the antenna is disposed to ensure the radiation performance of the antenna, and the size and the position of the clearance area in the universal subscriber communication module are fixed). Specifically, this area is away from the shield case 122 of the communication module 1 provided on the communication module main board 12 and the pin of the communication module 1 connected to the display panel main board 2.
The orthogonal projection of the clearance area 121 of the antenna 11 on the display panel main board 2 partially coincides with the board dividing area 21, and a first coinciding area 211 is formed in the board dividing area 21. The first overlapping area 211 can completely cover the orthographic projection of the clearance area 121 of the antenna 11 on the display panel main board 2, so that the influence of the board splitting area 21 on the radiation performance of the antenna 11 can be effectively ensured. Alternatively, the first overlapping area 211 may partially cover the orthographic projection of the clearance area 121 of the antenna 11 on the display panel main board 2, so as to effectively ensure that the board dividing area 21 has an influence on the radiation performance of the antenna 11 to a certain extent, and at the same time, more cutting areas can be reserved.
When the communication module 1 is set, it is only necessary to ensure that the clearance area 121 of the antenna 11 and the board splitting area 21 have the first overlapping area 211, so that the board splitting area 21 can be conveniently ensured to have influence on the radiation performance of the antenna 11, and further, the effectiveness of adjusting the area of the board splitting area 21 can be ensured.
Further, the orthographic projection of the communication module 1 on the display panel main board 2 is partially overlapped with the board dividing area 21, and a second overlapped area 212 and an adjusting area 213 except the second overlapped area 212 are formed in the board dividing area 21; the first overlap region 211 is located within the second overlap region 212.
Specifically, the side of the communication module 1 where the antenna 11 is provided is disposed toward the board separation region 21, so that the second overlapping region 212 is covered by the communication module 1 in the region corresponding to the board separation region 21, and the region of the adjustment region 213 corresponding to the board separation region 21 is not covered by the communication module 1. The first overlapping area 211 is located in the second overlapping area 212, so that the area on the board splitting area 21 not covered by the communication module 1, that is, the adjustment area 213 also has an influence on the radiation performance of the antenna 11, and since the area is not covered, the area of the adjustment area 213 not covered can be adjusted to adjust the frequency of the antenna 11 when the communication module 1 is mounted on the display board main board 2.
It is understood that in other embodiments, in the case that the orthographic projection of the communication module 1 on the display panel main board 2 completely coincides with the board dividing region 21, that is, the orthographic projection of the communication module 1 on the display panel main board 2 completely covers the board dividing region 21, the area of the board dividing region 21 can be adjusted before the communication module 1 is mounted on the display panel main board 2.
Further, at least one edge of the adjustment region 213 coincides with a side edge of the display panel main plate 2. The trimming area 213 can be trimmed directly at the overlapping side. It is understood that if the adjustment region 213 is located inside the display panel main board 2, the trimming may be performed by the stamping and trimming method.
Specifically, the shape of the divided plate region 21 is rectangular, and the divided plate region 21 includes a first corner 214 corresponding to a corner of the display panel main plate 2; the second overlap region 212 is located at a second corner 215 of the board splitting region 21 opposite the first corner 214; two adjacent sides of the first corner 214 correspond to two sides of the adjustment region 213. Thus, the adjustment region 213 is located at the rail corner of the display panel main board 2, and two sides can be cut, thereby further facilitating cutting.
Further, the area of the adjusting area is more than or equal to 37 square millimeters. The adjusting requirement of the area of the adjusting area under most of installation environments can be guaranteed, and the adjusting effect of the antenna frequency can be effectively guaranteed under the condition that the integration effect of the display device is guaranteed.
The panel dividing area 21 on the display panel main board 2 is formed by a via array. Specifically, the through-hole array includes any one of a circular hole array (also referred to as a stamp hole array), a square hole array, and a triangular hole array. The panel dividing area 21 formed by the array can be easily cut to ensure that the workability of the display device 100 is not deteriorated during the adjustment.
It will be appreciated that the sub-panel area 21 may also be formed as an array of square or triangular cells, and that the lines forming the cells may be formed by grooves or may be cut to facilitate cutting.
Specifically, in the present exemplary embodiment, the arrangement of the board-divided area 21 is such that one stamp hole array is provided in the area where the SMT is mounted on the communication module (the area where the communication module 1 is mounted on the display panel main board 2) provided on the display panel main board 2. When the communication module 1 is mounted, the stamp hole array covers the clearance area 121 and the partial through-ground GND area of the whole antenna 11 on the communication module 1 in the orthographic projection direction. By conveniently cutting the FR4 material of the stamp hole array, the comprehensive dielectric constant of the antenna radiation environment can be reliably reduced, so that the communication module 1 which is originally installed in the high-dielectric-constant environment and is subjected to frequency offset can be restored to work to the target frequency band. By changing the cutting program, the FR4 materials with different areas can be conveniently adapted to the installation environments with different dielectric constants by cutting.
Continuing to refer to fig. 1 and 2, the display device 100 further includes a display panel 3 electrically connected to a first side of the display panel main board 2; communication module 1 includes the WIFI module, and the WIFI module is integrated on display panel mainboard 2 and the second side that the first side is relative. The display panel 3 may be a liquid crystal display or a digital tube module, etc.
Specifically, display panel 3 and display panel mainboard 2 all set up inside display panel shell 4, and display panel 3 electricity connect on the first side of display panel mainboard 2, and display panel shell 4 block is at display panel mainboard 2 both ends for display panel 3 and display panel mainboard 2 can be dismantled and be fixed in inside display panel shell 4, and touch spring 5 is pressed and is established and between display panel 3 and the display panel mainboard 2.
The two parts of the universal WIFI module and the display panel 3 are integrated on one display panel main board 2, and the universal WIFI module and the display panel main board become a module form. Can place under different household electrical appliances environment, utilize household electrical appliances body and display panel mainboard, through the area of dividing the board region 21 on the material adjustment display panel mainboard 2 according to the household electrical appliances body for the household electrical appliances body becomes the partly of antenna.
By changing the area of the sub-board area 21, the frequency offset of the antenna is changed, and the display device 100 can be applied to home appliances made of various materials, and has a wide application environment. The WIFI module is generalized in different household appliance installation environments made of stainless steel, plastics, glass and ceramics, and has the characteristics of wider adaptive material range and better wireless communication performance compared with a traditional broadband communication module. Manufacturability and automatic production degree are higher, and material cost and labor cost are optimized.
By means of different cutting adjustment modes, materials of the board dividing regions 21 in the display device 100 with different areas are cut, and therefore the WIFI module can adapt to installation environments with different dielectric constants. Specifically, the area to be cut for correction of the board dividing area 21 may be selected according to the area to be cut for correction corresponding to different installation environment materials shown in the following table. For example, when the material of the installation environment is Glass, the Glass is cut by 10.5mm2The panel dividing region 21.
| Installation environment material | Dielectric constant | Uncut frequency offset (MHz) | Correction of area (mm) to be cut2) |
| Polyvinyl chloride PVC | 2.7 | 0 (antenna based on this optimization) | 0 |
| FR4 material | 4.4 | 60 | 7～8 |
| Glass | 5.5 | 90 | 9～11 |
| Marble Marble | 8.2 | 150 | 33～37 |
Fig. 4 shows a schematic structural diagram of a refrigerator according to an embodiment of the present invention.
Referring to fig. 4, a refrigerator 200 of the present embodiment includes: the display device 100 and the refrigerator door 6 with the display device 100 installed thereon are as described in any one of the above. By changing the area of the upper board area 21 of the display device 100 to change the frequency offset of the antenna, the display device 100 can be applied to refrigerators made of various materials, such as stainless steel, plastic, glass, ceramic, etc. The display device 100 is obtained by modularly integrating the communication module 1 and the display panel main board 2, so that a cable installation groove can be omitted when the display device is installed on a refrigerator, the cost of the refrigerator is reduced, and meanwhile, the attractiveness of the refrigerator is improved.
It is understood that the display device 100 may be installed at any position on the refrigerator 200, for example, on a refrigerator body case.
To sum up, the utility model discloses a display device of embodiment has following advantage at least:
the installation position of the display device 100 with the wireless communication function can be set at will, the installation is convenient, and the installation cost is effectively reduced; the frequency of the antenna 11 on the communication module 1 in the display device 100 can be conveniently and effectively corrected along with different installation environments, the communication module 1 can be adapted to diversified installation environments, the communication module is effectively generalized, and the display device with a further wireless communication function can be generalized to various installation environments. And the radiation efficiency of the antenna 11 is ensured and the wireless communication performance of the display apparatus 100 is reliably ensured.
The utility model discloses a refrigerator of embodiment has following advantage at least:
the refrigerator with the wireless communication function effectively reduces cost, and meanwhile, the attractiveness of the refrigerator is effectively improved.
Furthermore, the above-described figures are merely schematic illustrations of processes included according to exemplary embodiments of the present invention, and are not intended to be limiting. Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (10)
1. A display device comprising a communication module and a display panel main board, wherein,
the communication module is integrated on the display panel mainboard; the communication module comprises an antenna;
a board splitting area is formed on the display board main board corresponding to the position of the antenna, and the orthographic projection distance from any point in the board splitting area to the antenna on the display board main board is smaller than or equal to a preset threshold value, so that the frequency of the antenna is adjusted by adjusting the area of the board splitting area.
2. The display apparatus of claim 1, wherein an orthographic projection of the clearance area of the antenna on the main panel of the display panel partially coincides with the panel dividing area, forming a first coinciding area in the panel dividing area.
3. The display device according to claim 2, wherein an orthographic projection of the communication module on the display panel main board partially coincides with the board dividing area, and a second coinciding area and an adjustment area other than the second coinciding area are formed in the board dividing area; the first overlap region is located within the second overlap region.
4. A display device as claimed in claim 3, characterized in that at least one edge of the adjustment area coincides with a side edge of the main panel of the display panel.
5. The display apparatus of claim 3, wherein the panel dividing area has a rectangular shape, the panel dividing area including a first corner corresponding to a corner of the main panel of the display panel; the second overlapping area is positioned at a second corner, opposite to the first corner, of the board splitting area; two adjacent sides of the first corner correspond to two sides of the adjusting area.
6. The display device of claim 3, wherein the adjustment region has an area equal to or greater than 37 square millimeters.
7. The display device according to any one of claims 1 to 6, wherein the divided plate region is formed by a through-hole array.
8. The display device according to claim 7, wherein the array of through holes includes any one of an array of circular holes, an array of square holes, and an array of triangular holes.
9. The display device of claim 1, further comprising a display panel electrically connected to a first side of the display panel main board; the communication module comprises a WIFI module, and the WIFI module is integrated on a second side face, opposite to the first side face, of the display panel main board.
10. A refrigerator, characterized by comprising: the display device as claimed in any one of claims 1 to 9 and a refrigerator door body on which the display device is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020724435.1U CN212380552U (en) | 2020-05-06 | 2020-05-06 | Display device and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020724435.1U CN212380552U (en) | 2020-05-06 | 2020-05-06 | Display device and refrigerator |
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| Publication Number | Publication Date |
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| CN212380552U true CN212380552U (en) | 2021-01-19 |
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| CN202020724435.1U Active CN212380552U (en) | 2020-05-06 | 2020-05-06 | Display device and refrigerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608246A (en) * | 2022-03-18 | 2022-06-10 | 海信（山东）冰箱有限公司 | Refrigerator control method and refrigerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608246A (en) * | 2022-03-18 | 2022-06-10 | 海信（山东）冰箱有限公司 | Refrigerator control method and refrigerator |
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