CN205722625U - Display device, building talkback equipment, Smart Home product and electric product - Google Patents

Abstract

The utility model discloses a display device, a building intercom device, a smart household product and an electrical device. The display device comprises a light guide plate (10) and a light guide plate light source (11), an icon plate (20) located below the non-visible surface of the light guide plate (10), and a light source assembly (30) located below the icon plate; the icon plate Icons and/or characters are set on it; other areas of the icon board except the icons and/or characters are set to be opaque, and the areas where the icons and/or characters are located are set to be light-transmitting or semi-transparent; the light source components include respectively and/or the icon adjustable light source corresponding to the character; the light guide plate light source and the icon adjustable light source are independent of each other. The utility model can not only realize the overall backlight and icon lighting at the same time, but also each light source is independent of each other and does not interfere with each other. The color of each light source can be adjusted freely, thereby meeting the use requirements in different use environments and avoiding expensive costs.

Description

Display devices, building intercom equipment, smart home products and electrical products

technical field

The utility model relates to a display device, in particular to a display device capable of displaying icons of different colors, and also to building intercom equipment, smart home products and electrical products including the display device.

Background technique

With the further improvement of living standards, people have higher and higher requirements for visualization. In the building intercom industry and smart home industry, some application scenarios require the device to provide backlight in a dark environment, and at the same time prompt the user or Icons can be displayed in response to user actions. Due to the different functions of the icons, it is also necessary for the icons to be able to achieve different color changes.

The overall lighting of the existing backlight module is realized based on the light guide plate. The light guide plate is a thin plastic plate with a very high reflectivity and no light absorption with uniform light guide points on the bottom surface. The light guide plate is irradiated by an independent light source, so that the overall light can be formed. The existing backlight module displays different color icons on the basis of the overall backlight through the following two schemes: one is to realize the backlight effect and icon color change through LED screen display, add a liquid crystal plate and a polarizer to the light guide plate, It is realized by driving the movement of liquid crystal molecules by a circuit, that is, the common LCD/LED display on the market. The second is to print icons on the light guide plate, that is, directly use the light guide plate to print icons of different colors on the visible surface of the light guide plate. As shown in Figure 1, the backlight module includes a light guide plate 10 and a Icon 21 on the visible side of the light panel.

The first solution is to realize the backlight effect with icons in the form of a display screen. It uses the backlight of the LED itself and realizes the display of icons on the LED display screen and the change of the color of the backlight of the icons through a program. This solution is expensive and consumes a lot of resources. Waste is like making kitchen knives with precious metals. Although it can be realized in principle, it is uncompetitive in terms of cost and causes a great waste of resources. The second solution is realized by printing icons on the light guide plate. Although the cost is low, the printed icons themselves do not have the ability to emit light, and the appearance cannot meet the requirements of the overall backlight of the light guide plate and the icon itself. The two implementation schemes cannot meet the requirements in some use environments, which limits the use environment of the scheme.

Therefore, how to not only realize the overall backlight and icon lighting, but also make the color of the icon lighting freely definable to meet the requirements of different usage environments, while avoiding expensive costs, is an urgent problem to be solved in this field.

Utility model content

In order to overcome the disadvantages of the prior art, the purpose of the invention of the present utility model is to provide a display device, at a lower cost, based on the light guide plate to realize the adjustable light emission of icons and the visualization requirements of the overall backlight of the light guide plate.

The technical solution of the utility model provides a display device, which includes a light guide plate, a light source for the light guide plate, an icon plate located below the non-visible surface of the light guide plate, and a light source assembly located below the icon plate; the icon plate Icons and/or characters are set; other areas of the icon board except the icons and/or characters are set to be opaque, and the areas where the icons and/or characters are located are set to be light-transmissive or semi-transparent; The light source assembly includes icon adjustable light sources respectively corresponding to the icons and/or characters; the light guide plate light source and the icon adjustable light source are independent of each other.

According to a preferred embodiment of the present invention, the icon plate is made of film material.

According to a preferred embodiment of the present invention, the icon plate is made of hard material or soft material.

According to a preferred embodiment of the present utility model, the light guide plate and the icon plate are bonded together to form a light guide plate module.

According to a preferred embodiment of the present utility model, the light source of the light guide plate is set as an adjustable light source.

According to a preferred embodiment of the present invention, the light source assembly includes a PCB board for implementing circuit control of the icon adjustable light source.

According to a preferred embodiment of the present invention, the display device further includes a lens made of PC material located above the visible surface of the light guide plate for protection.

According to a preferred embodiment of the present utility model, the display device further includes a soft plate made of PC material located above the light source assembly, which is used to homogenize and soften the light emitted by the icon adjustable light source .

According to a preferred embodiment of the present invention, the display device further includes a mounting case for mounting and fixing a backlight module composed of the light guide plate, the icon plate and the light source assembly.

According to a preferred embodiment of the present invention, there are multiple icons and/or characters; the number of adjustable light sources for the icons is also set to correspond to the positions of the icons and/or characters; and each The adjustable light sources of the above icons are independent of each other.

The technical solution of the utility model also provides a building intercom device, including the aforementioned display device.

The technical solution of the present invention also provides a smart home product, including the aforementioned display device.

The technical solution of the present invention also provides an electrical device, including the aforementioned display device.

Therefore, the display device provided by the utility model and the building intercom equipment, smart home products and electrical products including the display device overcome the shortcomings of the prior art, and provide a display device that can display different lights on the basis of overall light emission. The color icon solution has high reliability and has the following advantages:

1. The controllability of each light source is strong: the technical solution provided by the utility model ensures that the light source for realizing the overall backlight of the light guide plate inside the backlight module and the light source for the icon to emit light are independent of each other and do not interfere with each other, and the light source between the icons It is independent of each other and does not interfere with each other; so that there are more than two sets of light sources that are independent of each other and do not interfere with each other inside the backlight module, so that it is convenient to control.

2. Lower cost: Compared with the expensive LED screen display method, the technical solution provided by the utility model can not only realize similar functions and meet the required visualization effect, but also can complete the overall backlight and display at a lower cost. Icon glow color changes.

3. Ingenious design: Compared with the existing technical scheme realized by printing icons on the light guide plate, it cannot realize the overall backlight and the light emission of icons with color changes at the same time, and the use environment is limited; while the technical scheme provided by the utility model can be cleverly Realize the change of the overall backlight and the color of the icon area;

4. Wide adaptability: The luminous colors of different icons and characters in the display device of the present utility model can be freely defined, which can meet the use requirements in different use environments, and the icons and characters can be set according to user needs, so that it can be applied to All kinds of building intercom equipment, smart home products and electrical products.

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

In order to better describe the embodiments of the present utility model, the following drawings are drawn. It should be understood that the accompanying drawings only show preferred embodiments of the present utility model by way of example, and the accompanying drawings should not be construed as limiting the present utility model, wherein:

FIG. 1 is a schematic diagram of an icon printed on an existing light guide plate;

Fig. 2 is the schematic diagram of the light guide plate and the icon plate of the technical solution provided by the utility model;

Fig. 3 is a schematic diagram of the light guide plate module and the light source assembly of the technical solution provided by the utility model;

Fig. 4 is the schematic diagram of the display device of the technical solution provided by the utility model;

Fig. 5 is a schematic diagram of another display device of the technical solution provided by the present invention.

In the present specification and drawings, the same reference numerals indicate the same or similar features or elements.

detailed description

A schematic solution of the present invention will be described in detail below with reference to the following description and drawings. The drawings in this application are not necessarily drawn to the actual scale of the particular embodiments, and no variation in size should be construed as limiting the invention. In the following, "as shown in the figure" or similar expressions refer to the description of specific technical features with reference to a certain drawing, but it should not be understood that the specific technical features or their equivalents are only included in this In the attached picture.

In the following description, certain directional terms such as "left", "right", "upper", "lower", "front", "rear" and other directional terms are used only to indicate However, when the application changes, the direction indicated by these directional terms will change accordingly. While "first", "second", "third" and other terms are used to describe multiple components, but there is no order between these components, these terms are only used to distinguish one component from another. distinguish.

The display device provided by the utility model has simple structure, low cost, and is easy to manufacture, and can effectively realize the adjustable light emission of icons and the visualization requirements of the overall backlight, has high adaptability, and can meet the requirements of different use environments.

2-4 show the structure of a preferred embodiment provided by the utility model. FIG. 5 shows a schematic view of the structure of the display device of the present invention with some optional configurations added.

When the display device provided by the utility model is applied to building intercom equipment, smart home products and electrical products, it can meet the higher requirements of users for visualization. It can not only realize the overall backlight, but also display the The icon can be operated, and the icon can be changed in different colors according to the needs.

When the display device provided by the utility model is used for backlight display of equipment, it can be called a backlight module. In the following description of the utility model, the display device of the utility model will be described in detail by taking the backlight module as an example.

The backlight module with icons provided by the utility model is mainly composed of the following components: a light guide plate 10 , an icon plate 20 and an icon adjustable light source 31 . For convenience of fixing, the icon-adjustable light source 31 can be arranged on the light source assembly 30 . Its basic working principle is as follows: realize the icon pattern on the icon plate 20 through related processes, glue or fix the icon plate 20 on the non-visible surface of the light guide plate 10, and then place the icon adjustable light source 31 on the icon 21 Below, so as to realize the change of icon backlight and color. Combined with the light guide plate 10 itself having an independent light guide plate light source 11, the overall backlight can be realized, so that a backlight module meeting higher visualization requirements can be realized.

As shown in FIG. 2 , the icon 21 may be an icon or a character, and for simplicity of description, the icon or character is collectively referred to as an icon hereinafter. According to user needs, one or more icons 21 can be set. As shown in FIG. 3 , when there are multiple icons 21 , there are multiple icon-tunable light sources 31 correspondingly, and their positions correspond to the positions of the icons 21 . In order to adjust the light source conveniently, each icon-adjustable light source 31 can also be set to be independent of each other without interfering with each other.

Other areas of the icon board 20 of the present invention except the icon 21 are set to be opaque, and the area where the icon 21 is located is set to be light-transmissive or semi-transparent. The icon plate 20 is preferably a film material, which can be a hard material or a soft material.

The icon plate 20 of the present utility model can be made in a variety of ways, for example, first prepare a transparent or translucent film, and then use a silk screen printing process to coat one side of the film except all other areas of the icon with an opaque coating , so as to form a visual effect that only the icon area can transmit light. It is also possible to prepare a transparent or translucent film first, and then coat an opaque layer on the whole, and then remove the opaque layer where the icon is located by laser engraving, so as to form a visual effect that only the icon area is transparent .

The technical solution of the utility model can set the light source assembly 30 to fix the icon-adjustable light source 31 through the PCB board 30 , so that the circuit control and position fixing of the icon-adjustable light source 31 can be conveniently and synchronously realized. In order to save space, the light guide plate light source 11 and the PCB board 30 can also be connected through wires or FPC lines 12, so that the circuit control of the light guide plate light source 11 can be realized through the PCB board of the icon adjustable light source 31.

According to the technical solution of the utility model, an appropriate icon adjustable light source can be selected according to actual needs and cost considerations, for example, RGB three-color light source can be selected, so that different color changing effects can be realized. In order to obtain a better visualization effect, the light guide plate light source 11 can also be set as an adjustable light source, so that the adjustment of the color of the backlight can be further realized. The light guide plate light source 11 can be arranged on the side of the light guide plate 10 or other suitable positions.

The display device of the present utility model can be provided with an installation case 60 according to the actual assembly needs, and the backlight module 1 composed of the light guide plate 10, the icon plate 20 and the light source assembly 30 can be installed on the installation case 60, and can also not have the installation case 60. , and install each module directly on other parts of the electrical equipment.

In order to better protect the light guide plate, the icon board and the light source below, the display device can also include a lens 40, which is made of PC material, and is located above the visible surface of the light guide plate 10, and can be fixed on the installation shell 60 at the same time. Protect the visible surface of the light guide plate of the backlight module from external impact.

In order to better visualize the effect, the display device can also have a soft plate 50, which can be made of PC material, arranged above the light source assembly 30, and fixed on the installation shell 60, so that the icon of the backlight module can adjust the light source The light emitted by 31 is homogenized and softened to meet higher display requirements.

The manufacturing of the backlight module according to an embodiment of the present invention can be realized by referring to FIGS. 2-5 and the following steps.

First, the prepared icon plate 20 is glued on the non-visible surface of the light guide plate 10 , as shown in FIG. 2 . Since the light guide plate 10 itself is transparent, the icon 21 to be displayed can be clearly displayed on the visible surface of the light guide plate 10 .

Next, the light guide plate 10 bonded with the icon plate 20 is placed on the icon adjustable light source 31 through the device. FIG. 3 shows a schematic diagram of disposing the icon adjustable light source 31 on the back of the icon 21 .

Then, the display device is further assembled according to FIG. 4 . FIG. 4 shows the relative positional relationship of the backlight module 1 composed of the light guide plate 10 , the icon plate 20 and the icon adjustable light source 31 . The light guide plate 10 , the light guide plate light source 11 and the icon plate 20 form the light guide plate module 100 , and the light guide plate module 100 and the adjustable icon light source 21 form the backlight module 1 of the present invention. FIG. 5 shows a working diagram of the backlight module 1 equipped with optional components on the display device, wherein the backlight module 1 is installed on the installation shell 60 . According to actual needs, the lens 40 and the soft plate 50 can be further configured to achieve better visualization and protect the display device.

The utility model has the advantage that, since the light guide plate module 100 itself has an integral backlight function and the backlight can be adjusted through the light guide plate light source 11, and the adjustable light sources 31 of each icon can be adjusted through related programs, so that different icon backlight colors can be formed In this way, the visible surface of the light guide plate can realize the effect of overall backlight and icon color change, thereby forming the backlight module of the present utility model which is comparable to LED in terms of visual effect, so as to solve the problem that the prior art cannot achieve the same visual effect and The problem of balancing costs.

The display device of the utility model is ingeniously designed. Only by adding an icon plate and an adjustable light source on the light guide plate, the expensive LED scheme can be replaced to realize the adjustable light source of the icon and the visualization effect of the overall backlight. Its structure is simple and very easy. production and manufacturing. The display device of the present invention is equipped with multiple sets of light sources that are independent of each other and do not interfere with each other. The overall backlight of the light guide plate and the colors of different icons and characters can be freely defined to meet the requirements of use in different environments. And characters can also be set according to user needs, so that it can be applied to various building intercom equipment, smart home products and electrical products.

According to needs, the above technical solutions can be combined to achieve the best technical effect.

What has been described above is only the principles and preferred embodiments of the present invention. It should be pointed out that although preferred embodiments of the present invention and accompanying drawings are disclosed for the purpose of illustrating the present invention, those skilled in the art can make Various substitutions, changes and retouchings. Several other modifications made on the basis of the principle of the present invention should also be regarded as the protection scope of the present invention. Therefore, the present invention should not be limited to the content disclosed in the preferred embodiments and drawings, and the scope of protection of the present invention should be defined by the appended claims.

Claims (13)

1. a display device, it is characterised in that include light guide plate (10) and light guide plate light source (11), It is positioned at the icon board (20) below the non-visible surface of described light guide plate (10) and is positioned at described icon board (20) light source assembly (30) of lower section；Described icon board is provided with icon and/or character on (20) (21)；Described icon board (20) other region in addition to described icon and/or character (21) sets Being set to light tight, the region at described icon and/or character (21) place is set to printing opacity or semi-transparent Light；Described light source assembly (30) includes corresponding with described icon and/or character (21) respectively Icon tunable light source (31)；

Described light guide plate light source (11) and described icon tunable light source (31) are separate.

Display device the most according to claim 1, it is characterised in that described icon board (20) For thin-film material.

Display device the most according to claim 1, it is characterised in that described icon board (20) For hard material or soft material.

Display device the most according to claim 1, it is characterised in that described light guide plate (10) Light guide plate module (100) is constituted with described icon board (20) bonding.

Display device the most according to claim 1, it is characterised in that described light guide plate light source (11) it is set to tunable light source.

Display device the most according to claim 1, it is characterised in that described light source assembly (30) Including pcb board, the circuit being used for realizing described icon tunable light source (31) controls.

Display device the most according to claim 1, it is characterised in that described display device is also Including the eyeglass (40) being made up of PC material being positioned at above described light guide plate (10) visible surface, For shielding.

Display device the most according to claim 1, it is characterised in that described display device is also Including the softbox (50) being made up of PC material being positioned at above described light source assembly (30), use Homogenization and softening process is carried out in the light that described icon tunable light source (31) is sent.

Display device the most according to claim 1, it is characterised in that described display device is also Including mounting shell (60), it is used for installing and fixes by described light guide plate (10), described icon board (20) The backlight module (1) formed with described light source assembly (30).

10. according to the display device one of claim 1～9 Suo Shu, it is characterised in that described figure Mark and/or character (21) are multiple；Described icon tunable light source (31) is also configured as corresponding number Amount, corresponding with the position of described icon and/or character (21) respectively；And each described icon can Light modulation source (31) is separate.

11. 1 kinds of building talkback equipment, including the display device as described in one of claim 1～10.

12. 1 kinds of Smart Home products, including the display device as described in one of claim 1～10.

13. 1 kinds of electrical equipments, including the display device as described in one of claim 1～10.