Display module

Abstract

This utility model discloses a display module, including: a frame with a cavity; a display module disposed on one side of the frame; and a printed circuit board (PCB) disposed between the frame and the display module. The PCB partially covers the frame and has a first notch located within the cavity. The display module fully covers the cavity, the first notch, and partially covers the PCB. The design of the PCB with the first notch located within the cavity and partially covering the frame reduces the material cost of the PCB and frame, while avoiding component stacking conflicts. The design of the display module fully covering the cavity, the first notch, and partially covering the PCB allows for cost reduction by reducing PCB material usage, enabling automated assembly of the PCB, flexible circuit board, and display module. The flexible circuit board connection achieves higher reliability.

Description

Technical Field

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

[0002] In the traditional process of connecting the glass substrate and the PCB gold fingers with conductive adhesive strips, manual alignment of the ITO electrodes on the glass substrate and the PCB gold fingers is generally required. This requires high precision, is difficult to automate, and necessitates strict control of the adhesive strip compression ratio. Furthermore, it typically requires clamping, resulting in slow assembly speed and low yield. Other drawbacks of traditional conductive adhesive strips include: the silicone material is prone to deformation under long-term pressure, and changes in compression ratio lead to increased contact resistance, causing image defects and pixel loss; the strips are also prone to oxidation under high temperature and humidity environments. Traditional solutions require gold plating of the PCB edges to ensure contact conductivity, which is costly. In traditional display modules, the entire PCB board is mounted on the back of the module, occupying a large space, affecting structural compactness, and hindering heat dissipation and flexible wiring optimization. The entire PCB board is manufactured, leading to high manual soldering costs and a high product defect rate. Furthermore, directly fixing the PCB to the frame or the back of the display module leads to the following problems: PCB layout is limited, making it difficult to optimize trace design within a confined space, affecting signal transmission efficiency and resulting in low space utilization; the lack of effective limiting structures between the PCB and the frame makes them prone to displacement due to vibration or thermal expansion and contraction, leading to poor contact or loose functional interfaces; when the FPC connects the display module and the PCB, if the frame does not provide adequate accommodating space, it may cause stress concentration during bending, shortening the service life. Simultaneously, the coverage areas of the frame and PCB lack targeted design, failing to balance structural strength and lightweight requirements; insufficient matching accuracy between notches and limiting components results in low assembly efficiency; and the layout of functional interfaces is not optimized in conjunction with the frame's accommodating slots, increasing module thickness. Utility Model Content

[0003] To address the aforementioned problems, the primary objective of this utility model is to provide a display module that solves the technical issues of unreasonable partitioning layout of printed circuit boards, unreasonable layered design of the frame, and lack of limiting of the gaps in the printed circuit board by the frame.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model provides a display module, including:

[0006] The frame has a cavity.

[0007] The display module is located on one side of the frame;

[0008] A printed circuit board is disposed between the frame and the display module; wherein...

[0009] The printed circuit board partially covers the frame, and the printed circuit board has a first notch located within the cavity.

[0010] The display module completely covers the first notch and partially covers the printed circuit board.

[0011] Furthermore, the printed circuit board includes a first region and a second region, the first region and the second region are connected and enclosed to form the first notch, the display module partially covers the first region, and the display module partially covers the second region.

[0012] Furthermore, the second region includes:

[0013] A third sub-region and a fourth sub-region, wherein the third sub-region is connected between the first region and the fourth sub-region; wherein...

[0014] The first region and the third sub-region enclose a second gap; the third sub-region and the fourth sub-region enclose a third gap; and...

[0015] Both the second notch and the third notch are located within the cavity.

[0016] Furthermore, the first region is integrally connected to the third sub-region, and the third sub-region is integrally connected to the fourth sub-region.

[0017] Furthermore, it also includes:

[0018] A flexible circuit board, with one end connected to the display module and the other end connected to the printed circuit board, is disposed within the cavity.

[0019] Furthermore, it also includes:

[0020] The first limiting member and the second limiting member are both connected between the frame and the display module;

[0021] When the printed circuit board is assembled with the frame assembly, the first limiting member is positioned at the second notch, and the second limiting member is positioned at the third notch.

[0022] Furthermore, the display module includes:

[0023] The second frame is connected to the adhesive frame;

[0024] The partition, together with the second frame, forms a first receiving groove, and the partition, the plastic frame, and the second frame together form a second receiving groove;

[0025] The display screen is disposed within the first receiving slot; wherein...

[0026] The first limiting member and the second limiting member are disposed in the second receiving groove.

[0027] Furthermore, both the first limiting member and the second limiting member are integrally connected to the plastic frame; the partition is integrally connected to the second frame.

[0028] Further, the printed circuit board includes:

[0029] The functional interface is located in the third sub-region of the printed circuit board and within the second receiving slot.

[0030] Furthermore, a groove is formed on the side of the frame near the display module, which is recessed into the frame. The groove is used to configure the printed circuit board, and the groove is corresponding to the first region, the third sub-region, and the fourth sub-region.

[0031] Compared with existing technologies, this application offers the following advantages: The display module is designed as a frame assembly, a display module, and a printed circuit board (PCB). The frame has a cavity; the display module is positioned on one side of the frame; the PCB is positioned between the frame and the display module; the PCB partially covers the frame and has a first notch located within the cavity; the display module fully covers the cavity, the first notch, and partially covers the PCB. Thus, by using the frame as a support structure to integrate the display module and the PCB, the assembly process is simplified, the overall mechanical stability of the module is enhanced, and the risk of component loosening is reduced. The design of the PCB with the first notch located within the cavity and partially covering the frame reduces the material costs of the PCB and frame, while avoiding component stacking conflicts. The design of the display module fully covering the cavity, the first notch, and partially covering the PCB allows for material reduction in the PCB through the first notch, and material and weight reduction in the frame through the cavity, saving significant space for wiring and other design considerations. Through the support of the frame and the partial coverage of the PCB, the display module achieves comprehensive optimization in terms of structural compactness and signal integrity. Attached Figure Description

[0032] Figure 1 This is a three-dimensional schematic diagram of the display module of this utility model.

[0033] Figure 2 This is a schematic diagram of removing the display module from the display module of this utility model.

[0034] Figure 3 This is a three-dimensional schematic diagram of the display module of this utility model after the display module and partition have been removed.

[0035] Figure 4This is a schematic diagram of the structure of the printed circuit board and flexible circuit board of this utility model.

[0036] Figure 5 This is a schematic diagram of removing the printed circuit board from the display module of this utility model.

[0037] Figure 6 This is a schematic diagram of the assembly of the printed circuit board and the frame of this utility model.

[0038] Figure 7 This is a schematic diagram of the structure of the frame of a display module according to this utility model.

[0039] Figure 8 This is another structural schematic diagram of the frame of a display module according to this utility model.

[0040] Figure 9 This is a schematic diagram showing the area of ​​two printed circuit boards spliced ​​together in a display module according to this utility model.

[0041] Figure 10 This is a schematic diagram showing the area of ​​a single printed circuit board for a display module according to this utility model.

[0042] In the diagram: 10, frame; 100, cavity; 110, groove; 13, first limiting member; 14, second limiting member; 11, first receiving groove; 20, display module; 21, second frame; 22, partition; 23, display screen; 30, printed circuit board; 31, first area; 32, second area; 321, third sub-area; 322, fourth sub-area; 33, first notch; 34, second notch; 35, third notch; 40, flexible circuit board. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0044] To achieve the above objectives, the technical solution of this utility model is as follows:

[0045] See Figures 1-10 As shown, this utility model provides a display module, including: a frame 10 with a cavity 100; a display module 20 disposed on one side of the frame 10; and a printed circuit board 30 disposed between the frame 10 and the display module 20. The printed circuit board 30 partially covers the frame 10 and has a first notch 33 located within the cavity 100. The display module 20 fully covers the cavity 100 and the first notch 33, and partially covers the printed circuit board 30.

[0046] The display module is designed as a frame 10, a display module 20, and a printed circuit board 30. The frame 10 has a cavity 100. The display module 20 is located on one side of the frame 10. The printed circuit board 30 is located between the frame 10 and the display module 20. The printed circuit board 30 partially covers the frame 10 and has a first notch 33 located within the cavity 100. The display module 20 fully covers the cavity 100 and the first notch 33, and partially covers the printed circuit board 30. Thus, by using the frame 10 as a support structure to integrate the display module 20 and the printed circuit board 30, the assembly process is simplified, the overall mechanical stability of the module is enhanced, and the risk of component loosening is reduced. The design of the printed circuit board 30 with the first notch 33 located within the cavity 100 and partially covering the frame 10 reduces the material cost of the printed circuit board 30 and the frame 10, while avoiding component stacking conflicts.

[0047] Furthermore, the printed circuit board 30 includes a first region 31 and a second region 32. The first region 31 and the second region 32 are connected and enclosed to form a first notch 33. The display module 20 partially covers the first region 31 and the second region 32. By designing the printed circuit board 30 as a connected first region 31 and second region 32, the printed circuit board 30 is partitioned. The first region 31 and the second region 32 are connected to form the first notch 33, which is located within the cavity 100 and partially covers the cavity 100.

[0048] By designing the first region 31 and the second region 32, the printed circuit board 30 is partitioned, which increases the number of different functional zones on the printed circuit board 30. Different functional zones can be connected to different functional interfaces or leads. The first region 31 and the second region 32 are connected to form a first notch 33, which is located within the cavity 100. Thus, the display module 20 covers the entire cavity 100 and the first notch 33, and partially covers the printed circuit board 30. This design reduces the material usage of the printed circuit board 30 through the first notch 33, and reduces the material usage and weight of the frame 10 through the cavity 100, while saving a lot of space for wiring and other designs.

[0049] Furthermore, the orthographic projection of the first notch 33 in the frame 10 partially overlaps with the orthographic projection of the cavity 100 in the frame 10. The overlapping area of ​​the two is large, and the overlap is greater than 80%, so as to maximize the space utilization of the frame 10 and save the material of the printed circuit board 30 to the greatest extent.

[0050] Further, the second region 32 includes a third sub-region 321 and a fourth sub-region 322. The third sub-region 321 connects the first region 31 and the fourth sub-region 322. The first region 31 and the third sub-region 321 enclose a second gap 34. The third sub-region 321 and the fourth sub-region 322 enclose a third gap 35. Both the second gap 34 and the third gap 35 are located within the cavity 100. The second gap 34 communicates with the first gap 33; the third gap 35 communicates with the first gap 33.

[0051] Furthermore, the first region 31 and the third sub-region 321 are integrally connected, and the third sub-region 321 and the fourth sub-region 322 are integrally connected. That is, the printed circuit board 30 is divided into the first region 31, the third sub-region 321, and the fourth sub-region 322. The display module 20 partially covers the first region 31, the third sub-region 321, and the fourth sub-region 322.

[0052] It should be noted that the third sub-region 321 extends into the cavity 100 and divides the cavity 100 into the first notch 33, the second notch 34 and the third notch 35; the fourth sub-region 322 is located outside the cavity 100, and the first region 31 is located outside the cavity 100.

[0053] Furthermore, the display module also includes a flexible circuit board 40, one end of which is connected to the display module 20 and the other end of which is connected to the printed circuit board 30.

[0054] Therefore, by designing the third sub-region 321 and the fourth sub-region 322 of the first region 31 and the second region 32, the printed circuit board 30 is partitioned, which increases the number of different functional partitions of the printed circuit board 30. Different functional partitions can be connected to different functional interfaces or leads to connect with other structures such as the flexible circuit board 40. Through the support of the frame 10 and the partial coverage of the printed circuit board 30, the display module achieves comprehensive optimization in terms of structural compactness and signal integrity.

[0055] Furthermore, the display module also includes: a first limiting member 13, connected between the frame 10 and the display module 20; and a second limiting member 14, connected between the frame 20 and the display module 20. When the printed circuit board 30 is assembled with the frame 10, the first limiting member 13 is positioned at the second notch 34, and the second limiting member 14 is positioned at the third notch 35. Since the printed circuit board 30 is located between the frame 10 and the display module 20, in order to ensure that the frame 10 and the display module 20 can securely mount the printed circuit board 30, the frame 10 is connected to the display module 20 via the first limiting member 13 and the second limiting member 14.

[0056] It should be noted that, since the first region 31 and the second region 32 of the printed circuit board 30 are connected to form the first notch 33, the printed circuit board 30 of this application has a horizontal U-shaped design. Alternatively, the second region 32 includes a third sub-region 321 and a fourth sub-region 322. The first region 31 and the third sub-region 321 form a second notch 34, and the third sub-region 321 and the fourth sub-region 322 form a third notch 35. The printed circuit board 30 of this application is also equivalent to a horizontal U-shaped design. The first region 31, the third sub-region 321 of the second region 32, and the fourth sub-region 322 of the second region 32 all have areas for placing components, and the printed circuit board 30 meets the circuit design requirements.

[0057] Further, the display module 20 includes: a second frame 21, a partition 22, and a display screen 23. The second frame 21 is connected to the frame 10; the partition 22 and the second frame 21 enclose a first receiving groove 11, and the partition 22, the frame 10, and the second frame 21 enclose a second receiving groove (not labeled); the display screen 23 is disposed within the first receiving groove 11; wherein, the first limiting member 13 and the second limiting member 14 are disposed within the second receiving groove. The first receiving groove 11 and the second receiving groove are disposed opposite to each other.

[0058] Furthermore, the first limiting member 13 and the second limiting member 14 are both integrally connected to the rubber frame 10; the partition 22 is integrally connected to the second frame 21.

[0059] Furthermore, the display module 20 is disposed in the first receiving groove 11; the flexible circuit board 40, the first limiting member 13, and the second limiting member 14 are disposed in the second receiving groove.

[0060] Furthermore, the printed circuit board 30 also includes a functional interface (not labeled), which is disposed in the third sub-region 321 of the printed circuit board 30 and located in the second receiving groove.

[0061] Furthermore, a groove 110 is formed in the side of the frame 10 near the display module 20, which is recessed into the frame 10. The groove 110 is used to configure the printed circuit board 30, and the groove 110 is correspondingly configured with the first region 31, the third sub-region 321, and the fourth sub-region 322.

[0062] It should also be noted that the printed circuit board 30 partially covers the frame 10, and the display module 20 completely covers the cavity 100, the first notch 33, the second notch 34, and the fourth notch 35, with the display module 20 partially covering the printed circuit board 30. Specifically, the second frame 21 protrudes from the frame 10, and the second frame 21 connects to and encloses the frame 10 to form a barrier. The printed circuit board 30 is disposed between the frame 10 and the second frame 21. The second frame 21 is made of plastic, and further, the second frame 21 and the frame 10 are made of the same material.

[0063] Furthermore, the surface of the frame 10 near the second frame 21 is recessed towards the interior of the frame 10 to form a first recess, a second recess, and a third recess (none of which are labeled). The first recess, the second recess, and the third recess are sequentially connected to form a groove 110. The printed circuit board 30 is disposed in the first recess, the second recess, and the third recess. The first recess is used to load the first region 31 of the printed circuit board 30, the second recess is used to load the third sub-region 321 of the printed circuit board 30, and the third recess is used to load the fourth sub-region 322 of the printed circuit board 30.

[0064] Furthermore, the barrier formed between the frame 10 and the second frame 21 is used to correspond to the first region 31, the third sub-region 321 of the second region 32 and the fourth sub-region 322 of the printed circuit board 30, respectively, so that the edges of the first region 31, the third sub-region 321 and the fourth sub-region 322 of the printed circuit board 30 are partially wrapped by the barrier.

[0065] Furthermore, the second frame 21 includes a first side frame, a second side frame, a third side frame, and a fourth side frame connected in sequence. The first side frame, the second side frame, the third side frame, and the fourth side frame are connected in sequence and enclose a cavity 100. The first side frame is correspondingly disposed with the first region 31 of the printed circuit board 30 and the first recess of the frame 10. The second side frame is correspondingly disposed with the third sub-region 321 of the printed circuit board 30 and the second recess of the frame 10. The third side frame is correspondingly disposed with the fourth sub-region 322 of the printed circuit board 30 and the third recess of the frame 10. Furthermore, it should be noted that the three side frames of the second frame 21 are not completely hollowed out. That is, the barrier formed between the adhesive frame 10 and the second frame 21 is distributed with one end open and the other end closed. Thus, the second frame 21 abuts against the upper surface of the printed circuit board 30. Specifically, the first side frame of the second frame 21 presses against the edge of the first region 31 of the printed circuit board 30, the second side frame of the second frame 21 presses against the edge of the third sub-region 321, and the third side frame of the second frame 21 presses against the edge of the fourth sub-region 322, so that the second frame 21 fixes the printed circuit board 30 in a U-shape. Therefore, the printed circuit board 30 is designed with a horizontal U-shape and cooperates with the adhesive frame 10 and the second frame 21 to fix the printed circuit board 30.

[0066] It should be added that the display module 20 is preferably a liquid crystal display screen, i.e., an LCD display screen, which includes: a glass substrate, liquid crystal material, ITO transparent electrode, alignment layer, color filter and polarizer.

[0067] When the display module 20 is selected as a liquid crystal display screen, the display module further includes a backlight system for providing a uniform backlight source. The backlight system includes a light source, a diffusion film, and a reflective sheet. The light source is preferably an LED light source, which is arranged in an edge-lit or direct-lit manner. When an edge-lit backlight is used, the backlight system also includes a light guide plate. The LCD display screen and the backlight system are disposed within the first receiving groove 11.

[0068] In other embodiments, the display module 20 can also be configured as an OLED display screen, etc. When the display module is selected as an OLED display screen, there is no need to set a backlight, as the OLED display screen can emit light on its own.

[0069] It should also be noted that in the process of connecting the glass substrate and the printed circuit board 30 (PCB gold fingers) using traditional conductive adhesive strips, it is generally necessary to manually align the ITO electrodes of the glass substrate and the PCB gold fingers. This requires high precision, is difficult to automate, and the compression ratio of the adhesive strip needs to be strictly controlled. In addition, clamps are usually required for fixation, resulting in slow assembly speed and low yield. In order to overcome the above-mentioned defects in the current technology, the display module of this utility model can realize the automated assembly of the LCD display and the PCB through surface mount technology (SMT), eliminating the need for manual alignment and enabling direct soldering of the flexible circuit board 40 (FPC). By pre-designing the first receiving groove 11 and the second receiving groove 12 on the frame 10, the LCD display and the PCB can be quickly assembled after being grasped by a robotic arm, which is compatible with assembly line operations, improves assembly efficiency, reduces labor costs, and is suitable for mass production.

[0070] Furthermore, traditional conductive adhesive strips suffer from several drawbacks: silicone materials are prone to deformation under prolonged pressure, and changes in compression ratio lead to increased contact resistance, resulting in missing images and pixel loss; also, the adhesive strips are susceptible to oxidation under high temperature and humidity conditions. To address these shortcomings, the advantages of this display module are: the flexible circuit board 40 (FPC) experiences no physical contact wear, resulting in high connection stability and increased lifespan; and the frame is fixed without continuous compressive force, preventing material fatigue.

[0071] Furthermore, traditional solutions require gold plating on the PCB edges to ensure contact conductivity, which is costly. To eliminate the aforementioned defects in current technology, this utility model's display module can eliminate the gold fingers and instead use tin plating. The FPC soldering area can be treated with low-cost tin plating, reducing the cost of PCB materials. Moreover, traditional conductive adhesive strips require a wide gold finger area, while FPCs can be bent and stacked, significantly reducing the PCB area. By integrating positioning and fixing functions through the adhesive frame, the traditional metal reinforcement frame is eliminated, reducing structural costs.

[0072] It should be added that using raw materials with a first area can produce, for example... Figure 9 The two printed circuit boards 30 shown can be produced using a material with a second area, as shown in the figure. Figure 10 The ratio of the first area to the second area of ​​the single printed circuit board 30 shown is 82.39*73.69 / (71.52*59.61), which is approximately 1.42. Based on the ratio of the first area to the second area being approximately 1.42, the procurement area of ​​splicing two printed circuit boards 30 in the first version is 42% less than the procurement area of ​​a single printed circuit board 30.

[0073] Therefore, the display module of this utility model can ensure the bending life of FPC and the impact resistance of LCD; the high-density wiring of FPC can avoid signal interference, such as differential wiring design, which is compatible with high-frequency signal transmission; the same frame can be adapted to multiple sizes of LCD, further reducing mold costs.

[0074] The display module provided by this utility model includes: a frame assembly 10, a display module 20, and a printed circuit board 30; the frame 10 has a cavity 100; the display module 20 is disposed on one side of the frame 10; the printed circuit board 30 is disposed between the frame 10 and the display module 20; wherein, the printed circuit board 30 partially covers the frame 10, and the printed circuit board 30 has a first notch 33 located within the cavity 100; the display module 20 fully covers the cavity 100 and the first notch 33, and partially covers the printed circuit board 30. Thus, by using the frame 10 as a supporting structure to integrate the display module 20 and the printed circuit board 30, the assembly process is simplified, the overall mechanical stability of the module is enhanced, and the risk of component loosening is reduced; by providing the first notch 33 on the printed circuit board 30, which is located within the cavity 100, and by designing the printed circuit board 30 to partially cover the frame 10, the material cost of the printed circuit board 30 and the frame 10 can be reduced, while avoiding component stacking conflicts. By designing the display module 20 to fully cover the cavity 100 and the first notch 33, and partially cover the printed circuit board 30, the printed circuit board 30 reduces material usage through the first notch 33, and the frame 10 reduces material usage and weight through the cavity 100, while saving significant space for wiring and other design considerations. Through the support of the frame 10 and the partial coverage of the printed circuit board 30, the display module achieves comprehensive optimization in terms of structural compactness and signal integrity.

[0075] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A display module, characterized in that, include: The frame has a cavity. The display module is located on one side of the frame; A printed circuit board is disposed between the frame and the display module; wherein... The printed circuit board partially covers the frame, and the printed circuit board has a first notch located inside the cavity; the display module covers the cavity and the first notch, and partially covers the printed circuit board.

2. A display module as described in claim 1, characterized in that, The printed circuit board includes a first region and a second region. The first region and the second region are connected and enclosed to form the first notch. The display module partially covers the first region and the display module partially covers the second region.

3. A display module as described in claim 2, characterized in that, The second region includes: A third sub-region and a fourth sub-region, wherein the third sub-region is connected between the first region and the fourth sub-region; wherein... The first region and the third sub-region enclose a second gap; the third sub-region and the fourth sub-region enclose a third gap; and... Both the second notch and the third notch are located within the cavity.

4. A display module as described in claim 3, characterized in that, The first region is integrally connected to the third sub-region, and the third sub-region is integrally connected to the fourth sub-region.

5. A display module as described in claim 1, characterized in that, Also includes: A flexible circuit board, with one end connected to the display module and the other end connected to the printed circuit board, is disposed within the cavity.

6. A display module as described in claim 3, characterized in that, Also includes: The first limiting member and the second limiting member are both connected between the frame and the display module; When the printed circuit board is assembled with the frame, the first limiting member is positioned at the second notch, and the second limiting member is positioned at the third notch.

7. A display module as described in claim 6, characterized in that, The display module includes: The second frame is connected to the adhesive frame; The partition, together with the second frame, forms a first receiving groove, and the partition, the plastic frame, and the second frame together form a second receiving groove; The display screen is disposed within the first receiving slot; wherein... The first limiting member and the second limiting member are disposed in the second receiving groove.

8. A display module as described in claim 7, characterized in that, The first limiting member and the second limiting member are both integrally connected to the frame; the partition is integrally connected to the second frame.

9. A display module as described in claim 7, characterized in that, The printed circuit board includes: The functional interface is located in the third sub-region of the printed circuit board and within the second receiving slot.

10. A display module as described in claim 3 or 4, characterized in that, The side of the frame closest to the display module is recessed into the frame to form a groove, which is used to configure the printed circuit board. The groove is corresponding to the first region, the third sub-region, and the fourth sub-region.

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