A display structure and display screen supporting zero gap in diaphragm patterns

Abstract

The utility model discloses a display structure and a display screen supporting zero gap of diaphragm patterns, belonging to the technical field of display screens. The display structure includes a PCB board and a light guide plate arranged on the PCB board, and a light shielding layer is arranged on the side of the light guide plate. The display screen includes the above-mentioned display structure and also includes a foam layer and a diaphragm. The display structure of the utility model arranges a light shielding layer on the side of the light guide plate to block light from scattering from the side of the light guide plate, and eliminates the influence on the adjacent light guide plate; the position of the light guide plate is fixed by a positioning component, and the light guide plate can be prevented from moving compared with the existing foam frame fixing method; the light shielding layer is arranged on the frosted layer to improve the adhesion and light shielding of the light shielding layer; there is zero gap between the patterns of the image and text blocks on the display screen diaphragm, which is conducive to spatial layout and beautiful; it is convenient to position the diaphragm when pasting, and improves the alignment accuracy of the image and text blocks on the diaphragm and the light guide plate; the display screen can be used for various household appliances such as washing machines, dishwashers, water purifiers, and water heaters.

Description

Technical Field

[0001] The utility model belongs to the technical field of display screens, and in particular relates to a display structure and a display screen supporting zero gap of a diaphragm pattern. Background Art

[0002] In the field of home appliance display screens, in order to display different patterns or texts, a diaphragm with patterns or texts is usually provided, an LED light is provided on the PCB board, and light is concentrated behind the diaphragm through a light guide plate. When a certain pattern needs to be displayed, the LED light at the corresponding position is turned on. There are still some problems with this display screen. Since there are multiple patterns on the diaphragm, the light will leak to the adjacent light guide plate when the light guide plate guides light, causing the adjacent pattern to be lit up, resulting in display information errors. The existing solution is generally to set a separator between adjacent light guide plates. Although this method can block light, the separator has a certain width, which will cause gaps between the light guide plates. Since there are gaps between the light guide plates, gaps will also be set when designing the pattern on the diaphragm. However, there are more and more patterns that need to be displayed in existing home appliances, and too many gaps are not conducive to the layout of the pattern on the diaphragm and are not beautiful. The existing light guide plate is usually fixed by a foam frame during installation, which is inaccurately positioned and easy to move. Summary of the invention

[0003] The technical problem solved by the utility model is to provide a display structure supporting zero gap between film patterns and a display screen supporting films with no gap between patterns.

[0004] Technical solution: In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0005] A display structure supporting zero gap of a diaphragm pattern comprises a PCB board and a light guide plate arranged on the PCB board, wherein a light shielding layer is arranged on a side of the light guide plate.

[0006] Furthermore, there are more than two light guide plates, and the light shielding layer is used to block light transmission between adjacent light guide plates.

[0007] Furthermore, the light guide plate is a rectangular plate, and at least one of the two side edges of the light guide plate is provided with a light shielding layer.

[0008] Furthermore, a frosted layer is provided on the side of the light guide plate, and a light shielding layer is provided on the frosted layer.

[0009] Furthermore, the light guide plate is provided with a positioning component, and the PCB board is provided with a positioning hole corresponding to the positioning component.

[0010] This embodiment also provides a display screen, including the above-mentioned display structure supporting zero gap of diaphragm pattern, a foam layer is connected to the PCB board, a first opening area corresponding to the light guide plate is provided on the foam layer, a diaphragm is connected to the foam layer, and an LED lamp corresponding to the light guide plate is provided on the PCB board.

[0011] Furthermore, it also includes a shell, which is connected to the PCB board.

[0012] Furthermore, a plurality of adjacent graphic blocks are provided on the diaphragm.

[0013] Furthermore, a panel is connected to the shell.

[0014] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0015] 1. The display structure of the utility model sets a light shielding layer on the side of the light guide plate to block the light from being scattered from the side of the light guide plate, eliminate the influence on the adjacent light guide plate, and support zero gap when designing the film pattern;

[0016] 2. The display structure of the utility model is provided with a positioning component on the light guide plate, and a positioning hole is provided on the PCB board. The position of the light guide plate is fixed by the positioning component, and the positioning is accurate and easy to install. Compared with the existing foam frame fixing method, the light guide plate can be prevented from moving;

[0017] 3. A frosted layer is provided on the side of the light guide plate, and a light shielding layer is provided on the frosted layer to improve the adhesion and light shielding property of the light shielding layer;

[0018] 4. There is no gap between the patterns of the graphic blocks on the display screen membrane of the utility model, which is conducive to space layout and beautiful;

[0019] 5. A light shielding layer is provided on the side of the light guide plate. When two light guide plates are adjacent, a black line is formed in the middle, which is convenient for positioning when the film is pasted and improves the alignment accuracy between the image block on the film and the light guide plate;

[0020] 6. The display screen of the utility model can be used for various household appliances such as washing machines, dishwashers, water purifiers, water heaters, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram showing the structure of an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the front structure of the display screen of the utility model embodiment;

[0023] Figure 3 This is a schematic diagram of the back structure of the display screen of the utility model embodiment;

[0024] Figure 4 This is a schematic diagram of the side structure of the display screen of the utility model embodiment;

[0025] Figure 5 This is a schematic diagram of the side structure of the display screen of the utility model embodiment after removing the housing;

[0026] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0027] Figure 7 This is a schematic diagram of the front structure of the display screen of the utility model embodiment after removing the housing and the diaphragm;

[0028] Figure 8 This is a schematic diagram of the foam layer structure of an embodiment of the utility model;

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of multiple light guide plates in an embodiment of the utility model;

[0030] Fig.10 This is a schematic diagram of the front structure of the light guide plate of the utility model embodiment;

[0031] Fig.11 yes Fig.10 Enlarged view of point B in the middle;

[0032] Fig.12 It is a schematic diagram of the front structure of the diaphragm. DETAILED DESCRIPTION

[0033] The present invention will be further explained below in conjunction with specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0034] like Figure 1 , Figure 3 and Fig. 9As shown, a display structure supporting zero gap of diaphragm pattern in the present embodiment includes a PCB board 2 and a light guide plate 3. The PCB board 2 adopts an existing rectangular circuit board. Electronic components and wiring ports are connected to the back of the PCB board 2. Six light guide plates 3 are arranged on the front of the PCB board 2. The six light guide plates 3 are arranged in a row. The light guide plate 3 is a rectangular plate. A positioning component 31 is provided on the back of the light guide plate 3. The positioning component 31 includes four cylindrical positioning columns. The four positioning columns are integrally formed with the plate body of the light guide plate 3 and are arranged at the four corners of the light guide plate 3. A positioning hole 21 corresponding to the positioning component 31 is provided on the PCB board 2. The position of the light guide plate 3 is fixed by inserting the positioning component 31 into the corresponding positioning hole 21. In the existing display structure, a foam frame is used to fix the light guide plate. Although the foam frame and the PCB board have been pasted, the light guide plate will still move due to the soft material of the foam frame. The light guide plate 3 will not move in the positioning column fixing method of the present embodiment. A plurality of LED lights 22 are arranged on the front of the PCB board 2, and 5 LED lights 22 form a group among the plurality of LED lights 22. A group of LED lights 22 are respectively arranged at the upper and lower ends of each light guide plate 3. The LED lights 22 emit light from both ends of the light guide plate 3, thereby providing light source for the light guide plate 3.

[0035] like Figure 1 , Fig. 9 , Fig.10 and Fig.11 As shown, frosted layers 33 are provided on the left and right sides of the light guide plate 3. The light guide plate 3 is made of optical-grade acrylic material. The frosted layer 33 is processed by a grinding tool to form an uneven surface. A light-shielding layer 32 is provided on the frosted layer 33 (the light guide plate 3 can be provided with the light-shielding layer 32 on one side or on both sides. In the present embodiment, the light-shielding layer 32 is provided on both sides of the light guide plate 3). The light-shielding layer 32 is applied by brushing or rolling with inking tools such as an ink pen, an ink brush, or an ink roller, or is formed by inkjet equipment. The thickness of the light-shielding layer 32 is 1 micron-15 microns, and the light-shielding layer 32 is black. The light-shielding layer 32 is used to block light transmission between adjacent light guide plates 3. When a light guide plate 3 emits light, it will not affect the adjacent light guide plates 3. Since the light-shielding layer 32 reaches the micron level, the two light guide plates 3 can be close to each other when they are adjacent.

[0036] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig.12As shown, this embodiment also provides a display screen, including the above-mentioned display structure supporting zero gap of diaphragm pattern, and also includes a shell 1, a foam layer 5, a diaphragm 4 and a panel 6. The shell 1 is a rectangular frame surrounding the outside of the PCB board 2. The shell 1 is provided with a card slot corresponding to the PCB board 2. When connected, the PCB board 2 is clamped on the side of the shell 1 close to the back. The foam layer 5 is connected to the front of the PCB board 2. The foam layer 5 is provided with a first opening area 51 corresponding to the light guide plate 3. The light emitted to the front by the light guide plate 3 passes through the first opening. The hole area 51 will not be blocked by the foam layer 5. When the foam layer 5 is connected to the front of the PCB board 2, the first opening area 51 accommodates six light guide plates 3 and multiple groups of LED lights 22 corresponding to the light guide plates 3. The foam layer 5 blocks the light from scattering to the side. The foam layer 5 is provided with multiple first dividing blocks 52 extending into the first opening area 51. The first dividing block 52 is located between two adjacent groups of LED lights 22 to block the light scattered to the side by the LED lights 22, so that each group of LED lights 22 only lights up the corresponding light guide plate 3 when working.

[0037] like Figure 1 , Figure 5 , Figure 6 and Fig.12 As shown, the diaphragm 4 is connected to the front side of the foam layer 5, and the diaphragm 4 is made of an existing light-transmitting film. Six adjacent graphic blocks 41 are provided on the diaphragm 4, and the six graphic blocks 41 correspond to the positions of the six light guide plates 3 one by one, so that the light guide plate 3 can light up the corresponding graphic blocks 41, which is convenient for personnel to observe. For example, the display screen in this embodiment is used on a washing machine, and the six graphic blocks 41 respectively have the words "speed wash", "smart wash", "ultra-clean wash", "mite removal wash", "single dehydration" and "rinse", and each graphic block 41 is provided with a corresponding pattern. When the corresponding graphic block 41 needs to be lit, the internal control program of the washing machine controls the LED lights 22 at the upper and lower ends of the light guide plate 3 corresponding to the graphic block 41 on the PCB board 2 to light up, so that the light guide plate 3 emits light to light up the graphic block 41, and the pattern and text can be observed by personnel. Since the light guide plate 3 is coated with a shading layer 32 on both sides, the adjacent graphic blocks 41 will not be lit, so the patterns of the graphic blocks 41 on the diaphragm 4 can achieve zero gaps. Since there is a shading layer 32 between the light guide plates 3, a black line is formed between two adjacent light guide plates 3. When the film 4 is pasted onto the foam layer 5, the line between the adjacent graphic blocks 41 of the film 4 is aligned with the black line between the light guide plates 3, so that the position of the film 4 is accurate, and the graphic blocks 41 and the light guide plates 3 can correspond accurately one by one.

[0038] like Figure 1 , Figure 5 and Figure 6As shown, the shell 1 is connected to a panel 6, which is made of a transparent plate. A groove corresponding to the panel 6 is provided on the front side of the shell 1. When connected, the panel 6 is pasted on the front groove of the shell 1. The panel 6 is located on the outer layer of the diaphragm 4. On the one hand, the panel 6 cooperates with the shell 1 to play a packaging role, and on the other hand, it protects the diaphragm 4. Since the panel 6 is made of transparent material, it will not affect people's observation of the diaphragm 4.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A display structure supporting zero gap of a diaphragm pattern, characterized in that: It comprises a PCB board (2) and a light guide plate (3) arranged on the PCB board (2), a light shielding layer (32) being provided on the side of the light guide plate (3), more than two light guide plates (3) being provided, and the light shielding layer (32) being used to block light transmission between adjacent light guide plates (3).

2. The display structure supporting zero gap of film pattern according to claim 1, characterized in that: The light guide plate (3) is a rectangular plate, and at least one of the two side edges of the light guide plate (3) is provided with a light shielding layer (32).

3. The display structure supporting zero gap of film pattern according to claim 1, characterized in that: A frosted layer (33) is provided on the side of the light guide plate (3), and a light shielding layer (32) is provided on the frosted layer (33).

4. The display structure supporting zero gap of film pattern according to claim 1, characterized in that: The light guide plate (3) is provided with a positioning component (31), and the PCB board (2) is provided with a positioning hole (21) corresponding to the positioning component (31).

5. A display screen, characterized in that: The invention comprises a display structure supporting a zero gap of a diaphragm pattern as claimed in any one of claims 1 to 4, wherein a foam layer (5) is connected to the PCB board (2), a first opening area (51) corresponding to the light guide plate (3) is provided on the foam layer (5), a diaphragm (4) is connected to the foam layer (5), and an LED lamp (22) corresponding to the light guide plate (3) is provided on the PCB board (2).

6. The display screen according to claim 5, characterized in that: It also comprises a housing (1), wherein the housing (1) is connected to the PCB board (2).

7. The display screen according to claim 5, characterized in that: A plurality of adjacent graphic blocks (41) are provided on the diaphragm (4).

8. The display screen according to claim 6, characterized in that: A panel (6) is connected to the housing (1).

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