Novel casting touch display module structure

Abstract

The utility model discloses a novel casting touch control display module structure which comprises a casting backlight module, a liquid crystal touch module and a backlight iron frame, the casting backlight module comprises a backlight casting and a backlight module, the backlight module is installed in the backlight casting, a plurality of casting buckles are arranged on the outer side of the backlight casting, and the casting buckles are connected with the liquid crystal touch module. A compensation pad is attached to the interior of the casting buckle. According to the novel casting touch display module structure, when the novel casting touch display module structure is assembled, the touch screen is attached to the FOG through the OCA optical cement for the first time, then the primary attaching piece is attached to the backlight module for the second time, and finally the secondary attaching piece and the backlight casting are fixed together through the fixing glue. The backlight casting of the display module and the rear shell are clamped together, then 0.1-0.3 mm wear-resistant felt or single-sided sticky sponge is attached to the casting buckle, then the backlight casting of the display module and the rear shell are clamped together, at the moment, the wear-resistant felt or the sponge can fill a large gap and a small gap of assembly of the display module and the rear shell, and therefore the problem of abnormal sound is solved.

Description

Technical Field

[0001] This utility model relates to the field of display module technology, and in particular to a novel structure for a cast touch display module. Background Technology

[0002] Liquid crystal display (LCD) devices are widely used in various information, communication, automotive, and consumer electronics products due to their advantages such as light weight, small size, and low power consumption. The LCD module is the core display device in the LCD device. Current automotive display modules have a structure consisting of a cover plate or touch screen, optical adhesive, FOG (focal optics), cast backlight, and rear shell. Due to the large size of the product, the backlight casting buckle position and shape tolerance of the touch display module are large, and the shape tolerance of the back shell buckle that matches the casting is also large. This results in gaps of varying sizes after the casting buckle and the back shell buckle are assembled, which leads to abnormal noise problems during product vibration. Utility Model Content

[0003] Based on this, it is necessary to provide a novel cast touch display module structure to address the aforementioned technical problems. This structure comprises a touch screen, OCA optical adhesive, FOG (foil-on-frame), fixing adhesive, a backlight casting, and a backlight module. During assembly, the touch screen is bonded to the FOG using OCA optical adhesive in a single bonding process. Then, adhesive is applied to the connecting surface of the backlight module, and the two components are bonded together a second time. Finally, fixing adhesive is used to secure the second-bonded component to the backlight casting. Next, 0.1-0.3mm wear-resistant felt or single-sided adhesive sponge is attached to the casting clips. The backlight casting of the display module is then snapped together with the back cover. Since both the wear-resistant felt and single-sided adhesive sponge have excellent elasticity, they can fill the gaps between the display module and the back cover, thus solving the noise problem.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A novel cast touch display module structure includes:

[0006] The backlight module comprises a cast backlight assembly, a liquid crystal touch module, and a backlight frame. The cast backlight assembly includes a backlight casting and a backlight module. The backlight module is installed inside the backlight casting. Multiple casting clips are provided on the outer side of the backlight casting. Compensation pads are attached inside the casting clips to fill the gaps between the casting clips. The liquid crystal touch module includes a touch screen, OCA optical adhesive, and a FOG (foil-on-frame). The touch screen is bonded to the FOG using OCA optical adhesive, and the outer side of the touch screen is bonded to the backlight casting using fixing adhesive. The backlight frame is installed between the backlight module and the FOG.

[0007] Furthermore, the compensation pad is abrasion-resistant felt or single-sided adhesive sponge.

[0008] Furthermore, the thickness of the compensation pad is 0.1-0.3 mm.

[0009] Furthermore, the fixing adhesive is an RTV adhesive.

[0010] Furthermore, a backlight sponge is installed between the backlight iron frame and the FOG.

[0011] Furthermore, the number of the casting clips is multiple, and the multiple casting clips are distributed along the outer side of the backlight casting.

[0012] Furthermore, it also includes a rear shell, wherein the casting buckle is provided on the outside of the backlight casting, and the backlight casting is located inside the rear shell and is engaged with the casting buckle by a buckle block.

[0013] Furthermore, the inner wall of the casting buckle is provided with a slot, and the buckle block is fixedly connected to the inner side wall of the rear shell, the size of the buckle block and the slot being adapted to each other.

[0014] Furthermore, the upper side of the card block is provided with a slope.

[0015] Furthermore, the compensation pad is fixedly connected to the inner wall of the slot.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model provides a novel cast touch display module structure, which consists of a touch screen, OCA optical adhesive, FOG (foil-on-frame), fixing adhesive, a backlight casting, and a backlight module. During assembly, the touch screen is bonded to the FOG using OCA optical adhesive in one step, and then the backlight module is bonded to the connecting surface using adhesive. The two parts are then bonded together again, and finally, the two parts are fixed to the backlight casting with fixing adhesive. Then, 0.1-0.3mm wear-resistant felt or single-sided adhesive sponge is attached to the casting clips. The backlight casting of the display module is then snapped together with the back shell. Since both wear-resistant felt and single-sided adhesive sponge have excellent elasticity, the wear-resistant felt or sponge can fill the gaps between the display module and the back shell, thereby solving the problem of abnormal noise. Attached Figure Description

[0018] Figure 1 A schematic diagram of an embodiment of the novel casting touch display module structure provided by this utility model;

[0019] Figure 2 The novel casting touch display module structure provided by this utility model Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 A schematic diagram of Embodiment 2 of the novel casting touch display module structure provided by this utility model;

[0021] Figure 4 The novel casting touch display module structure provided by this utility model Figure 3 A magnified structural diagram at point B in the middle.

[0022] The markings in the diagram are explained as follows:

[0023] 1. Casting backlight module; 2. Backlight casting; 3. Backlight module; 4. Casting buckle; 5. Compensation pad; 6. LCD touch module; 7. Touch screen; 8. OCA optical adhesive; 9. FOG; 10. Fixing adhesive; 11. Backlight iron frame; 12. Backlight sponge; 13. Back shell; 14. Clip; 15. Slot; 16. Angled surface. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] As described in the background art, existing products have large shapes, and the backlight casting buckle position and shape tolerance of the touch display module are large. The shape tolerance of the back shell buckle that matches the casting is also large. This results in gaps of varying sizes after the casting buckle and the back shell buckle are assembled, which leads to abnormal noises during product vibration.

[0026] To solve this technical problem, this utility model provides a novel casting touch display module structure. During assembly, the touch screen 7 is bonded together once using OCA optical adhesive 8 and FOG9. Then, adhesive is applied to the connecting surface of the backlight module 3, and the first-bonded component and the backlight module 3 are bonded together a second time. Finally, the second-bonded component is fixed together with the backlight casting 2 using fixing adhesive 10. Then, 0.1-0.3mm wear-resistant felt or single-sided adhesive sponge is attached to the casting clip 4. Next, the backlight casting 2 of the display module is snapped together with the back shell 13. Since both wear-resistant felt and single-sided adhesive sponge have excellent elasticity, the wear-resistant felt or sponge can fill the gap between the display module and the back shell 13, thereby solving the problem of abnormal noise.

[0027] For details, please refer to Figure 1-4 The new type of cast touch display module structure specifically includes:

[0028] The casting backlight module 1 includes a backlight casting 2 and a backlight module 3. The backlight module 3 is installed inside the backlight casting 2. Multiple casting clips 4 are provided on the outside of the backlight casting 2. Compensation pads 5 are attached inside the casting clips 4. The compensation pads 5 are used to fill the gaps of the casting clips 4. The compensation pads 5 can fill the gaps between the display module and the back shell 13, thereby solving the problem of abnormal noise.

[0029] The LCD touch module 6 includes a touch screen 7, OCA optical adhesive 8 and FOG9. The touch screen 7 is bonded to the FOG9 by the OCA optical adhesive 8, and the outer side of the touch screen 7 is bonded to the backlight casting 2 by the fixing adhesive 10.

[0030] Backlight frame 11 is installed between backlight module 3 and FOG9.

[0031] The novel casting touch display module structure provided by this utility model consists of a touch screen 7, OCA optical adhesive 8, FOG9, fixing adhesive 10, backlight casting 2, and backlight module 3. During assembly, the touch screen 7 is bonded together once by OCA optical adhesive 8 and FOG9, and then the backlight module 3 is bonded together a second time by applying adhesive to the connecting surface. Finally, the second-bonded part is fixed together with the backlight casting 2 by fixing adhesive 10. Then, 0.1-0.3mm wear-resistant felt or single-sided adhesive sponge is attached to the casting clip 4. Next, the backlight casting 2 of the display module is snapped together with the back shell 13. Since both wear-resistant felt and single-sided adhesive sponge have excellent elasticity, the wear-resistant felt or sponge can fill the gap between the display module and the back shell 13, thereby solving the problem of abnormal noise.

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0033] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] Example 1

[0036] Please refer to Figure 1-2A novel casting touch display module structure includes a casting backlight module 1, which includes a backlight casting 2 and a backlight module 3. The backlight module 3 is installed inside the backlight casting 2. Multiple casting clips 4 are provided on the outer side of the backlight casting 2. Compensation pads 5 are attached inside the casting clips 4. The compensation pads 5 are used to fill the gaps of the casting clips 4. The compensation pads 5 can fill the gaps between the display module and the back cover 13, thereby solving the problem of abnormal noise.

[0037] The LCD touch module 6 includes a touch screen 7, OCA optical adhesive 8 and FOG9. The touch screen 7 is bonded to the FOG9 by the OCA optical adhesive 8, and the outer side of the touch screen 7 is bonded to the backlight casting 2 by the fixing adhesive 10.

[0038] Backlight frame 11 is installed between backlight module 3 and FOG9.

[0039] The novel cast touch display module structure provided in this embodiment consists of a touch screen 7, OCA optical adhesive 8, FOG9, fixing adhesive 10, backlight casting 2, and backlight module 3. During assembly, the touch screen 7 is bonded together once using OCA optical adhesive 8 and FOG9. Then, adhesive is applied to the connecting surface of the backlight module 3, and the first-bonded component and the backlight module 3 are bonded together a second time. Finally, the second-bonded component is fixed together with the backlight casting 2 using fixing adhesive 10. Then, 0.1-0.3mm wear-resistant felt or single-sided adhesive sponge is attached to the casting clip 4. Next, the backlight casting 2 of the display module is snapped together with the back shell 13. Since both wear-resistant felt and single-sided adhesive sponge have excellent elasticity, the wear-resistant felt or sponge can fill the gap between the display module and the back shell 13, thereby solving the problem of abnormal noise.

[0040] Example 2

[0041] The novel casting touch display module structure provided in Embodiment 1 is further optimized, specifically, as follows: Figure 1 and Figure 2 As shown, the compensation pad 5 is abrasion-resistant felt or single-sided adhesive sponge. The thickness of the compensation pad 5 is 0.1-0.3mm. Both abrasion-resistant felt and single-sided adhesive sponge have excellent abrasion resistance and elasticity. When the backlight casting 2 of the display module is snapped together with the back shell 13, the elasticity of the abrasion-resistant felt or sponge can fill the gap between the display module and the back shell 13 well because both abrasion-resistant felt and single-sided adhesive sponge have excellent elasticity.

[0042] The fixing adhesive 10 is an RTV adhesive. RTV adhesive has excellent bonding performance, high temperature resistance and good electrical insulation, and can better fix the secondary bonding part and the backlight casting 2 together through the fixing adhesive 10.

[0043] A backlight sponge 12 is installed between the backlight iron frame 11 and the FOG9. The backlight sponge 12 can buffer the vibration between the backlight iron frame 11 and the FOG9, avoid direct contact between them, and improve stability. There are multiple casting clips 4, which are distributed along the outer side of the backlight casting 2.

[0044] Example 3

[0045] The novel casting touch display module structure provided in Embodiment 1 or 2 is further optimized, such as... Figure 3 and Figure 4 As shown, it also includes a rear shell 13, a casting buckle 4 is opened on the outside of the backlight casting 2, the backlight casting 2 is located inside the rear shell 13 and is engaged with the casting buckle 4 by a buckle block 14, the inner wall of the casting buckle 4 is provided with a buckle groove 15, the buckle block 14 is fixedly connected to the inner side wall of the rear shell 13, the size of the buckle block 14 is adapted to the buckle groove 15, the upper side of the buckle block 14 is provided with a slope 16, and the compensation pad 5 is fixedly connected to the inner wall of the buckle groove 15.

[0046] By placing the backlight casting 2 of the display module into the back cover 13, the inclined surface 16 on the locking block 14 presses the backlight casting 2. Since the back cover 13 is elastic, it can deform slightly. At this time, the locking block 14 will slide into the inside of the locking groove 15, thereby fixing the backlight casting 2 and the back cover 13 together through the locking block 14. Since the compensation pad 5 is fixedly connected to the inner wall of the locking groove 15, it can fill the size gap between the display module and the back cover 13 during assembly, avoiding abnormal noise.

[0047] The usage process of the novel casting touch display module structure provided by this utility model is as follows:

[0048] The touch display module consists of a touch screen 7, OCA optical adhesive 8, FOG9, fixing adhesive 10, backlight casting 2, and backlight module 3. During assembly, the touch screen 7 is bonded together once using OCA optical adhesive 8 and FOG9. Then, the backlight module 3 is bonded together a second time using adhesive on the connecting surface. Finally, the second-bonded part is fixed to the backlight casting 2 using fixing adhesive 10. Then, 0.1-0.3mm wear-resistant felt or single-sided adhesive sponge is attached to the casting clip 4. Next, the backlight casting 2 of the display module is snapped together with the back shell 13. Since both wear-resistant felt and single-sided adhesive sponge have excellent elasticity, the wear-resistant felt or sponge can fill the gap between the display module and the back shell 13, thereby solving the problem of abnormal noise.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; conversely, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A novel casting touch display module structure, characterized in that, It includes: A casting backlight module (1) includes a backlight casting (2) and a backlight module (3). The backlight module (3) is installed inside the backlight casting (2). Multiple casting buckles (4) are provided on the outside of the backlight casting (2). A compensation pad (5) is attached inside the casting buckle (4). The compensation pad (5) is used to fill the gap of the casting buckle (4). The liquid crystal touch module (6) includes a touch screen (7), an OCA optical adhesive (8) and a FOG (9). The touch screen (7) is bonded to the FOG (9) by the OCA optical adhesive (8), and the outer side of the touch screen (7) is bonded to the backlight casting (2) by the fixing adhesive (10). A backlight frame (11) is installed between the backlight module (3) and the FOG (9).

2. The novel casting touch display module structure according to claim 1, characterized in that, The compensation pad (5) is abrasion-resistant felt or single-sided adhesive sponge.

3. The novel casting touch display module structure according to claim 2, characterized in that, The thickness of the compensation pad (5) is 0.1-0.3 mm.

4. The novel casting touch display module structure according to claim 3, characterized in that, The fixing adhesive (10) is an RTV adhesive.

5. The novel casting touch display module structure according to claim 4, characterized in that, A backlight sponge (12) is installed between the backlight iron frame (11) and the FOG (9).

6. The novel casting touch display module structure according to claim 5, characterized in that, The number of the casting buckles (4) is multiple, and the multiple casting buckles (4) are distributed along the outer side of the backlight casting (2).

7. The novel casting touch display module structure according to claim 6, characterized in that, It also includes a rear shell (13), the casting buckle (4) is opened on the outside of the backlight casting (2), the backlight casting (2) is located inside the rear shell (13) and is engaged with the casting buckle (4) by a buckle block (14).

8. The novel casting touch display module structure according to claim 7, characterized in that, The inner wall of the casting buckle (4) is provided with a slot (15), and the block (14) is fixedly connected to the inner side wall of the rear shell (13). The size of the block (14) is adapted to the slot (15).

9. The novel casting touch display module structure according to claim 8, characterized in that, The upper side of the card block (14) is provided with a slope (16).

10. The novel casting touch display module structure according to claim 9, characterized in that, The compensation pad (5) is fixedly connected to the inner wall of the slot (15).

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