Display module

Abstract

The utility model discloses a display module, which relates to the technical field of display screens and comprises a shell, a pattern layer, a circuit board, a light guide plate, a light-emitting chip and a light-emitting device, the circuit board and the light guide plate are arranged on the outer wall of the shell, and the light-emitting chip and the light-emitting device are arranged on the circuit board. The light-emitting chip is arranged in the circuit board, the light-emitting device is arranged on the side wall of the circuit board, and the light emitting direction of the light-emitting device faces the light guide plate; the light-emitting chip and the circuit board are matched to form a display area of the display module, and the light-emitting device and the light guide plate are matched to form a backlight area of the display module; the pattern layer is arranged on the outer wall of the shell and covers the display area and the backlight area. By arranging the light-emitting device and the light guide plate, a side-in type light-emitting display effect is formed, display patterns can be rapidly replaced in cooperation with the pattern layer, meanwhile, circuit design of the circuit board can be concentrated, and convenience of circuit design is improved.

Description

Technical Field

[0001] This utility model relates to the field of display screen technology, and specifically to a display module. Background Technology

[0002] Current circular displays employ a direct-lit display structure. This involves mounting LED beads on a flexible circuit board, which is then bonded to the curved surface. This, combined with a perforated light-transmitting plate and a pattern layer covering the plate, creates the display pattern. However, because the perforations in the existing light-transmitting plate are pre-machined, the patterns on the plate and pattern layer must be perfectly matched, resulting in a limited display effect. Furthermore, different baffle patterns need to be customized to match the pattern layer pattern to meet various usage requirements. The current direct-lit structure also necessitates a circuit board design that covers the entire display area, leading to complex circuitry. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art. This utility model provides a display module that forms a side-lit display effect by setting light-emitting devices and light guide plates. With the help of a pattern layer, the display pattern can be quickly changed. At the same time, it can concentrate the circuit design of the circuit board and improve the convenience of circuit design.

[0004] This utility model provides a display module, which includes: a housing, a pattern layer, a circuit board and a light guide plate disposed on the outer wall of the housing, and a light-emitting chip and a light-emitting device disposed on the circuit board;

[0005] The light-emitting chip is disposed inside the circuit board, the light-emitting device is disposed on the side wall of the circuit board, and the light-emitting device emits light towards the light guide plate;

[0006] The light-emitting chip and the circuit board cooperate to form the display area of ​​the display module, and the light-emitting device and the light guide plate cooperate to form the backlight area of ​​the display module;

[0007] The pattern layer is disposed on the outer wall of the housing, and the pattern layer covers the display area and the backlight area.

[0008] Furthermore, the light guide plate is a flexible light guide plate or a rigid light guide plate.

[0009] Furthermore, a gap is provided between the light-emitting device and the light guide plate, and the gap width is 0.5mm~1mm.

[0010] Furthermore, the pattern layer includes an adhesive layer, a substrate, and an ink layer stacked sequentially, and the pattern layer is bonded and fixed to the display area and the backlight area based on the adhesive layer.

[0011] Furthermore, the pattern layer has a display pattern formed on the ink layer.

[0012] Furthermore, the pattern layer also includes a phosphor layer, which is disposed between the adhesive layer and the substrate;

[0013] Alternatively, the phosphor layer may be disposed between the ink layer and the substrate.

[0014] Furthermore, the display module is also provided with a baffle, which is disposed between the circuit board and the pattern layer;

[0015] The baffle is provided with a plurality of reflective cavities, and one of the plurality of light-emitting chips is disposed in one of the plurality of reflective cavities.

[0016] Furthermore, when the display module is in the unfolded state, the backlight area is located on one side of the display area;

[0017] The upper and lower sides of the circuit board of the display area extend to one side to form a groove structure that accommodates the backlight area.

[0018] Furthermore, when the display module is in the unfolded state, the backlight area is located on opposite sides of the display area;

[0019] The circuit board of the display area extends to both sides on the top and bottom sides to form two symmetrically distributed groove structures that accommodate the backlight area.

[0020] Furthermore, when the display module is in the unfolded state, the unfolded state of the backlight area forms a groove structure to accommodate the display area.

[0021] This invention provides a display module that uses a left-right splicing combination of a directly illuminated display area and a side-illuminated backlight area. This allows for display pattern switching by changing the pattern layer structure of different display patterns, improving the versatility of the display product. By concentrating the light-emitting chips and devices in the display area, the overall circuit structure of the display can be concentrated in that area, simplifying the circuit design and layout. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the display module in an embodiment of this utility model;

[0023] Figure 2 This is an exploded view of the display module structure in an embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the display area structure of the display module in an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the baffle structure of the display module in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the unfolded state of the display module in an embodiment of this utility model;

[0027] Figure 6 This is a schematic diagram of another unfolded state of the display module in an embodiment of this utility model;

[0028] Figure 7 This is a schematic diagram of another structural unfolded state of the display module in an embodiment of this utility model. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1:

[0031] Please refer to Figures 1 to 7 This utility model embodiment provides a display module 10, which includes: a housing 1, a pattern layer 5, a circuit board 2 and a light guide plate 3 disposed on the outer wall of the housing 1, a light-emitting chip 21 and a light-emitting device 22 disposed on the circuit board 2; the light-emitting chip 21 is disposed inside the circuit board 2, and the light-emitting device 22 is disposed on the side wall of the circuit board 2, with the light emission direction of the light-emitting device 22 facing the light guide plate 3, so that the light-emitting device 22 can illuminate the light guide plate 3.

[0032] The light-emitting chip 21, in conjunction with the circuit board 2, forms the display area 6 of the display module 10. The light-emitting device 22, in conjunction with the light guide plate 3, forms the backlight area 7 of the display module 10. The pattern layer 5 is disposed on the outer circumferential wall of the housing 1, covering the display area 6 and the backlight area 7. The pattern layer 5 is provided with a display pattern. Light emitted from the display area 6 and the backlight area 7 can pass through the color filter of the pattern layer 5 to illuminate the display pattern, thereby achieving a pattern display effect in the display module.

[0033] Furthermore, by replacing the pattern layer 5 on the outside of the housing 1, the display module can adjust different display patterns according to actual display requirements, thereby improving the display effect of the screen and effectively enhancing the convenience of adjusting the display effect.

[0034] Furthermore, the light-emitting chip 21 is a single-chip structure. Depending on the actual display requirements of the screen, the light-emitting chip 21 can be configured as a red light chip, a blue light chip, a green light chip, etc., which, combined with the color filtering effect of the pattern layer 5, allows the display module to meet actual display needs. The light-emitting device 22 is a white light device, capable of emitting white light to the light guide plate 3. Through the light guiding effect of the light guide plate 3, the light guide plate 3 can illuminate the pattern layer 5 to display the designed pattern. The illumination operation of the LED beads with encapsulated device structures to the light guide plate 3 ensures the uniformity of light color within the light guide plate 3, improving the pattern display effect of the backlight area 7.

[0035] Furthermore, the light-emitting chip 21 can also be configured as a blue light chip or a purple light chip, which, together with the fluorescent film layer preset inside the pattern layer 5, can be excited to generate white light, thereby realizing the display of color patterns on the pattern layer 5.

[0036] Specifically, the circuit board 2 is provided with a circuit structure, so that a number of light-emitting chips 21 are electrically connected to the circuit structure, so that the number of light-emitting chips 21 can be lit up through the circuit structure.

[0037] Furthermore, the area of ​​the display area 6 is smaller than that of the backlight area 7. The light-emitting chip 21 and the light-emitting device 22 are concentrated in the display area 6, so that the circuit design of the display module 10 can be concentrated in the circuit board 2 of the display area 6, thereby improving the convenience of the circuit design and layout of the display module 10.

[0038] Specifically, the light-emitting device 22, the light guide plate 3, and the pattern layer 5 are arranged to form a backlight area 7. By adjusting the pattern design of the pattern layer 5, different image content can be displayed, improving the image display effect of the display module 10 and thus improving the convenience of adjusting the image display design of the display module 10.

[0039] Specifically, the pattern layer 5 comprises an adhesive layer, a substrate, and an ink layer stacked sequentially. The pattern layer 5 is bonded and fixed to the display area 6 and the backlight area 7 based on the adhesive layer. The ink layer is used to filter the emitted light color, so that the emitted light from the display area 6 and the backlight area 7 can display a relevant preset display pattern after passing through the pattern layer 5. Diffusing powder may be added inside the ink layer to make the emitted light within the ink layer uniform.

[0040] Furthermore, the substrate can be made of polyethylene terephthalate (PET), which has good chemical stability and light transmittance to meet the optical preparation requirements of the pattern layer 5.

[0041] Furthermore, the pattern layer 5 also includes a phosphor layer, which is disposed between the substrate and the adhesive layer. The phosphor layer, in conjunction with the light-emitting chip 21 within the display area 6, can achieve different light emission effects, thereby satisfying the display effect of the pattern designed in the pattern layer 5. A diffusing agent may be added to the phosphor layer to ensure sufficient reflection of the emitted light from the display area 6 or the backlight area 7 within the phosphor layer, thereby improving the uniformity of the emitted light effect.

[0042] Furthermore, the phosphor layer can also be disposed between the ink layer and the substrate, which can meet the pattern display requirements of the pattern layer 5.

[0043] Specifically, the light guide plate 3 can be a flexible light guide plate, which can be adapted to the outer ring structure design of the housing 1, so that the flexible light guide plate can meet the mounting requirements of different housing 1 shapes and contours. The light-emitting device 22 at the edge of the display area 6 can emit light to the light guide plate 3, so that the light guide plate 3 can evenly illuminate the pattern layer 5, and the display module 10 can display the design pattern of the pattern layer 5.

[0044] Furthermore, the light guide plate 3 can also be a rigid light guide plate. The rigid light guide plate is set as a U-shaped structural component, which can adapt to the outer contour of the housing 1. The rigid light guide plate can be assembled on the surface of the housing 1 by snap-fit, thereby improving the ease of assembly between the light guide plate 3 and the housing 1.

[0045] Specifically, the display module 10 also includes a baffle 4, which covers the circuit board 2. The baffle 4 is provided with a plurality of reflective cavities 41. One or more of the plurality of light-emitting chips 21 are respectively disposed in one of the reflective cavities 41. The reflective cavity 41 is used to limit the light emission angle and light emission range of the light-emitting chip 21, so that the light-emitting chip 21 can light up the pattern position corresponding to the pattern layer 5, thereby ensuring the display effect of the pattern layer 5 being lit.

[0046] Specifically, the display module also includes a reflective film 8, which is disposed between the housing 1 and the light guide plate 3. The light-emitting device 22 at the edge of the display area 6 emits light to the light guide plate 3, and the light inside the light guide plate 3 can be concentrated inside the light guide plate 3 after being reflected by the reflective film 8, so that the light guide plate 3 has good light output brightness and can meet the lighting display requirements of the pattern design of the pattern layer 5.

[0047] Example 2:

[0048] For details, please refer to Figure 5 Referring to the unfolded state of the display module 10, when the display module 10 is in the unfolded state, its backlight area 7 is arranged on one side of the display area 6. The side of the circuit board 2 is configured as a light strip 23 structure for mounting a plurality of light-emitting devices 22. The light strip 23 structures on the upper and lower sides of the circuit board 2 extend outward, and their extended portions correspond to the upper and lower sides of the light guide plate 3, thereby forming a groove structure on one side of the circuit board 2 for accommodating the light guide plate 3. The circuit board 2 adopts a flexible circuit board design, which has excellent flexibility and adaptability. It can be firmly fixed to the curved surface of the housing 1 by adhesive and form a ring structure around the outer circumference of the housing 1. Combined with the flexible light guide plate 3, it can perfectly adapt to the surrounding display requirements.

[0049] Furthermore, the light-emitting devices 22 of the light strip 23 structure are oriented towards the inside of the groove structure to ensure that the light can be efficiently and uniformly irradiated onto the light guide plate 3, thereby providing a stable and high-quality backlight effect for the entire display screen.

[0050] Furthermore, a gap is formed between the edge of the light guide plate 3 and the structure of the light strip 23, and the width of the gap is in the range of 0.5mm to 1mm, so as to ensure that the assembly tolerance and thermal expansion are met when the light guide plate 3 and the circuit board 2 are mated.

[0051] Example 3:

[0052] For details, please refer to Figure 6Referring to the unfolded state of the display module 10, the backlight area 7 can be located on opposite sides of the display area 6, and the upper and lower sides of the circuit board 2 extend to the upper and lower sides of the light guide plate 3, so that the unfolded state of the circuit board 2 forms an "I" shaped structure.

[0053] Example 4:

[0054] For details, please refer to Figure 7 Referring to the unfolded state of the display module 10, the unfolded state of the backlight area 7 can form a groove structure to accommodate the display area 6, that is, the backlight area 7 covers the three outer sides of the display area 6, and the shape design of the light guide plate 3 is adapted to the backlight area 7, so that the light guide plate 3 can be attached to the backlight area 7.

[0055] This utility model embodiment provides a display module that, by setting a display area 6 illuminated by direct-lit light and a backlight area 7 illuminated by side-lit light, forms a left-right splicing combination. This allows the display pattern on the backlight area 7 to be switched by changing the pattern layer 5 structure of different display patterns, improving the versatility of the display product. By concentrating the light-emitting chip 21 and the light-emitting device 22 in the display area 6, the overall circuit structure of the display can be concentrated in the display area 6, simplifying the circuit design and layout of the display.

[0056] Furthermore, the display module provided in the embodiments of this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A display module, characterized in that, The display module includes: a housing, a pattern layer, a circuit board and a light guide plate disposed on the outer wall of the housing, and a light-emitting chip and a light-emitting device disposed on the circuit board; The light-emitting chip is disposed inside the circuit board, the light-emitting device is disposed on the side wall of the circuit board, and the light-emitting device emits light towards the light guide plate; The light-emitting chip and the circuit board cooperate to form the display area of ​​the display module, and the light-emitting device and the light guide plate cooperate to form the backlight area of ​​the display module; The pattern layer is disposed on the outer wall of the housing, and the pattern layer covers the display area and the backlight area.

2. The display module as described in claim 1, characterized in that, The light guide plate is either a flexible light guide plate or a rigid light guide plate.

3. The display module as described in claim 1, characterized in that, A gap is provided between the light-emitting device and the light guide plate, and the gap width is 0.5mm to 1mm.

4. The display module as described in claim 1, characterized in that, The pattern layer comprises an adhesive layer, a substrate, and an ink layer stacked sequentially, and the pattern layer is bonded and fixed to the display area and the backlight area based on the adhesive layer.

5. The display module as described in claim 4, characterized in that, The pattern layer has a display pattern formed on top of the ink layer.

6. The display module as described in claim 4, characterized in that, The pattern layer further includes a phosphor layer, which is disposed between the adhesive layer and the substrate; Alternatively, the phosphor layer may be disposed between the ink layer and the substrate.

7. The display module as described in claim 1, characterized in that, The display module is also provided with a baffle, which is disposed between the circuit board and the pattern layer; The baffle is provided with a plurality of reflective cavities, and at least one of the plurality of light-emitting chips is disposed in one of the plurality of reflective cavities.

8. The display module as described in claim 1, characterized in that, When the display module is in the unfolded state, the backlight area is located on one side of the display area; The upper and lower sides of the circuit board of the display area extend to one side to form a groove structure that accommodates the backlight area.

9. The display module as described in claim 1, characterized in that, When the display module is in the unfolded state, the backlight area is located on opposite sides of the display area; The circuit board of the display area extends to both sides on the top and bottom sides to form two symmetrically distributed groove structures that accommodate the backlight area.

10. The display module as described in claim 1, characterized in that, When the display module is in the unfolded state, the unfolded state of the backlight area forms a groove structure to accommodate the display area.

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