An ultra-thin household appliance display screen convenient to position and install

Abstract

The utility model discloses a kind of ultra-thin household appliance display screens of convenient positioning installation, including circuit board, support, connecting filling layer, diaphragm and light guide plate, the connecting filling layer is arranged between circuit board and support, through hole is uniformly provided on support and connecting filling layer, the light guide plate is set in through hole, light guide plate is cooperated with LED light source on circuit board, forms multiple display units.The utility model makes the connecting filling layer made of foam be arranged between circuit board and support, compensate the gap caused by the rigid connection of circuit board and support and the light leakage problem between same display unit, improve the uniformity of display.Foam double-sided adhesive can conveniently assemble circuit board and support during installation, and facilitate positioning.No need to use hot-melt riveting, screw connection mode to fix support and circuit board, save process step and assembly cost.

Description

Technical Field

[0001] This utility model belongs to the field of home appliance display technology, specifically relating to an ultra-thin home appliance display that is easy to position and install. Background Technology

[0002] In existing ultra-thin home appliance displays, the installation sequence of the display module is generally from bottom to top: circuit board, bracket, light guide plate, light-blocking foam, and film. There are various ways to connect the bracket and the circuit board. If it is an integrated bracket, the circuit board is installed from the back of the bracket, either by snap-fitting or by potting glue on the back of the bracket, as disclosed in the applicant's earlier Chinese utility model patent with publication number CN220752982U: ​​Ultra-thin Module Display Screen; another form is that the circuit board is fixed above the bracket, with the circuit board riveted or screwed to the bracket, as disclosed in the applicant's earlier Chinese utility model patent with publication number CN222928614U: Flat Detachable Light Guide Plate Display Module and Home Appliance Display Panel.

[0003] Another form involves fixing the bracket to the circuit board, such as the form shown in Figure 8 of the applicant's earlier Chinese utility model patent application (publication number CN222801346U): "Curved Touch Light Guide Plate Display Module and Home Appliance Display Panel," where the bracket 41 is hot-riveted to the top of the circuit board. However, the following problems arose during actual production and assembly: First, the positioning of the bracket 41 and the circuit board was inaccurate, leading to misalignment during installation, resulting in rework and reduced installation efficiency; moreover, the misalignment caused the position of the through-holes on the bracket to be misaligned with the LEDs and corresponding light guide plates on the circuit board. Third, while the bracket is made of plastic, which maintains the stability of the entire display module, the rigid connection between the circuit board and the bracket results in gaps after installation. Fourth, when the bracket is thin, the narrow ribs between the through-holes on the bracket become even thinner, causing light leakage between adjacent display units after installation, and the ribs cannot achieve a good light-blocking effect.

[0004] To solve the above problems, a display panel is needed that can improve installation accuracy and efficiency while also solving the problem of light leakage at the ribs of thin brackets. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a display panel that improves installation accuracy and efficiency while solving the problem of light leakage at the ribs of thin brackets.

[0006] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An ultra-thin home appliance display screen that is easy to position and install includes a circuit board, a bracket, a connecting filler layer, a film, and a light guide plate. The connecting filler layer is disposed between the circuit board and the bracket. Both the bracket and the connecting filler layer are provided with through holes. The light guide plate is disposed in the through holes. The light guide plate cooperates with the LED light source on the circuit board to form multiple display units.

[0008] Furthermore, the connecting filler layer is made of a soft material.

[0009] Furthermore, the soft material is made of foam, with adhesive backing on both sides of the foam, one side being bonded to the circuit board and the other side being bonded to the bracket.

[0010] Furthermore, the circuit board, connecting filler layer, bracket, and diaphragm are arranged sequentially from top to bottom, with the diaphragm attached to the upper surface of the bracket.

[0011] Furthermore, the bracket is a planar bracket or an arc-shaped bracket, with the upper surface of the arc-shaped bracket being a curved surface that is high in the middle and gradually decreases towards both sides.

[0012] Furthermore, the display unit includes a digital tube display area, a touch control display area, and / or a pure function pattern display area.

[0013] Furthermore, the membrane is a composite membrane that integrates a touch membrane and can collect touch signals, or the membrane is a single-layer membrane.

[0014] Furthermore, it also includes a panel, wherein the circuit board, bracket, connecting filler layer, film and light guide plate are combined to form a display module, which is disposed in the panel.

[0015] Furthermore, a barrier is provided on the back of the panel, and the display module is disposed within the barrier.

[0016] Furthermore, the back of the display module is potted with adhesive.

[0017] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0018] (1) The ultra-thin home appliance display screen of this utility model is easy to position and install. The foam connecting filling layer is placed between the circuit board and the bracket to fill the gap between the bracket and the circuit board and make up for the gap caused by the rigid connection between the circuit board and the bracket.

[0019] (2) The ultra-thin home appliance display screen of this utility model, which is easy to position and install, has double-sided adhesive foam, which allows for convenient assembly of the circuit board and bracket during installation and facilitates positioning. It eliminates the need for hot-melt riveting or screw connections to fix the bracket to the circuit board, saving process steps and assembly costs. It is especially suitable when the bracket is thin.

[0020] (3) The ultra-thin home appliance display screen of this utility model is easy to position and install. It uses foam filling and light blocking under the bracket and a film directly attached to the bracket to solve the problem of light leakage between different display units from different directions and improve the uniformity of display. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an ultra-thin home appliance display screen that is easy to position and install;

[0022] Figure 2 This is a top view of the structure of an ultra-thin home appliance display screen, which is easy to position and install.

[0023] Figure 3 yes Figure 2 AA view;

[0024] Figure 4 yes Figure 2 BB view;

[0025] Figure 5 It is an exploded view of an ultra-thin home appliance display screen that is easy to position and install;

[0026] Figure 6 This is a schematic diagram of the bottom of an ultra-thin home appliance display screen that is easy to position and install;

[0027] Figure 7 It is a perspective view of an ultra-thin home appliance display screen that is easy to position and install. Detailed Implementation

[0028] The present invention will be further illustrated below with reference to 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 intended to limit the scope of the present invention.

[0029] like Figure 1-7 As shown, the ultra-thin home appliance display screen of this utility model, which is easy to position and install, includes a circuit board 1, a bracket 2, a connecting filling layer 3, a film 4, a light guide plate 5, an LED light source 6, a digital tube display area 7, a touch control display area 8, a pure function pattern display area 9, a panel 10, and a enclosure 11. The circuit board 1, the connecting filling layer 3, the bracket 2, and the film 4 are arranged sequentially from bottom to top. The connecting filling layer 3 is located between the circuit board 1 and the bracket 2. Through holes 15 are provided on both the bracket 2 and the connecting filling layer 3. The light guide plate 5 is located in the through holes 15. The light guide plate 5 cooperates with the LED light source 6 on the circuit board 1 to form multiple display units. The film 4 is attached to the upper surface of the bracket 2.

[0030] The circuit board 1, bracket 2, connecting filler layer 3, film 4, and light guide plate 5 are combined to form a display module, which is disposed within the panel 10. In this embodiment, the outer surfaces of the circuit board 1, bracket 2, connecting filler layer 3, and film 4 are all flush.

[0031] Diaphragm 4 is a composite diaphragm that integrates a touch film and can collect touch signals. The touch film is composited in the diaphragm and is electrically connected to the circuit board through a flexible circuit to transmit touch signals.

[0032] Alternatively, diaphragm 4 can be a single-layer diaphragm without a conductive touch layer. The diaphragm thickness is only 0.1mm to 0.5mm. The base film of the colored diaphragm can be PET or PC film, with a graphic layer printed on it. If a single-layer diaphragm is used, a conductive layer for sensing human body capacitance is provided on circuit board 1. This conductive layer is an etched or attached conductive material to circuit board 1. The conductive layer on the control circuit board is an etched or attached copper foil or other conductive material. When a human body triggers the conductive layer on control circuit board 1, a signal is transmitted between the conductive layer and the processor of control circuit board 1. The processor of control circuit board 1 identifies the touch location, thereby triggering the function corresponding to the touch button.

[0033] The support 2 can be a flat support or an arc-shaped support. The upper surface of the arc-shaped support is higher in the middle and gradually decreases towards both sides. This can be customized according to customer requirements. In this embodiment, the support is arc-shaped and relatively thin, approximately 0.6–3 mm.

[0034] To address the problems existing in the prior art, this embodiment changes the traditional approach by placing a foam-based connecting filler layer 3 between the circuit board 1 and the support 2. The connecting filler layer 3 is made of a soft material, such as black foam or opaque soft rubber.

[0035] In this embodiment, black foam is used, with adhesive backing on both sides. One side is bonded to circuit board 1, and the other side is bonded to bracket 2. The foam is low-cost, stable in performance, and its hardness and thickness can be freely selected, thus reducing overall costs. Double-sided adhesive foam can be customized. During installation, first remove the release paper from one side, then bond the foam to the upper surface of the circuit board and secure it. Next, remove the release paper from the other side and directly bond the bracket to the upper surface of the foam. This eliminates the need for heat-sealing riveting or screw connections to fix the bracket to the circuit board, saving process steps and assembly costs. This is especially suitable when the bracket is thin.

[0036] After the circuit board 1, foam, and bracket 2 are fixed, the film 4 is directly glued to the upper surface of the bracket 2 to complete the installation of the display module. Because the film 4 is thin, it can be deformed at will, and it can fit very tightly to the upper surface of the bracket, whether the bracket is flat or curved.

[0037] The display unit includes a digital tube display area 7, a touch control display area 8, and / or a purely functional pattern display area 9. The layout is determined according to customer requirements.

[0038] A enclosure 11 is provided on the back of the panel 10, and the display module is installed inside the enclosure 11. It can be fixed by means of clips or other means.

[0039] In applications requiring high waterproofing, such as washing machines and bar counters, a waterproof layer is formed by potting adhesive on the back of the display module, achieving sealing and waterproofing of the entire circuit board and improving waterproofing performance. During potting, the waterproof adhesive is evenly poured into the back cover 11 of the circuit board 1, with a thickness of approximately 3mm to 5mm. Polyurethane sealant or silicone sealant is used. This step can be omitted in applications where waterproofing is not required.

[0040] The panel 10 of this invention can be an integrated panel, with the transparent display window integrally formed with the entire panel support. The outer periphery of the transparent display window 12 and the enclosure 11 is provided with components such as buckles 13 and threaded posts 14 for assembly and fixation with the display module and the front control panel support. The display window 12 is made of acrylic, glass, in-mold molding (IMD), or other injection molded parts (using ABS, PC, or ABS+PC materials). The contents of the display module can be clearly displayed through the transparent display window 12, and the display module can be controlled by touch through the acrylic or glass panel.

[0041] The door panel of this utility model can be used on washing machines, refrigerators, dishwashers, water purifiers, tea bar machines, range hoods, water heaters, ovens, robot vacuums, air conditioners, or other home appliances.

[0042] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An ultra-thin home appliance display screen that is easy to position and install, characterized in that: The device includes a circuit board (1), a bracket (2), a connecting filler layer (3), a diaphragm (4), and a light guide plate (5). The connecting filler layer (3) is disposed between the circuit board (1) and the bracket (2). Through holes are provided on both the bracket (2) and the connecting filler layer (3). The light guide plate (5) is disposed in the through holes. The light guide plate (5) cooperates with the LED light source (6) on the circuit board (1) to form multiple display units.

2. The ultra-thin home appliance display screen that is easy to position and install according to claim 1, characterized in that: The connecting filler layer (3) is made of a soft material.

3. The ultra-thin home appliance display screen that is easy to position and install according to claim 2, characterized in that: The soft material is made of foam, with adhesive on both the top and bottom sides. One side is bonded to the circuit board (1), and the other side is bonded to the bracket (2).

4. The ultra-thin home appliance display screen that is easy to position and install according to claim 1, characterized in that: The circuit board (1), the connecting filler layer (3), the bracket (2) and the diaphragm (4) are arranged in order from top to bottom, with the diaphragm (4) attached to the upper surface of the bracket (2).

5. The ultra-thin home appliance display screen that is easy to position and install according to claim 1, characterized in that: The bracket (2) is a planar bracket or an arc-shaped bracket. The upper surface of the arc-shaped bracket is an arc surface that is high in the middle and gradually decreases towards both sides.

6. The ultra-thin home appliance display screen that is easy to position and install according to claim 1, characterized in that: The display unit includes a digital tube display area (7), a touch control display area (8), and / or a pure function pattern display area (9).

7. The ultra-thin home appliance display screen that is easy to position and install according to claim 1, characterized in that: The membrane (4) is a composite membrane that integrates a touch membrane and can collect touch signals, or the membrane (4) is a single-layer membrane.

8. The ultra-thin home appliance display screen for easy positioning and installation according to claim 1, characterized in that: It also includes a panel (10), wherein the circuit board (1), bracket (2), connecting filling layer (3), film (4) and light guide plate (5) are combined to form a display module, which is set in the panel (10).

9. The ultra-thin home appliance display screen that is easy to position and install according to claim 8, characterized in that: A enclosure (11) is provided on the back of the panel (10), and the display module is disposed inside the enclosure (11).

10. The ultra-thin home appliance display screen for easy positioning and installation according to claim 8, characterized in that: The back of the display module is potted with adhesive.

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