Wearable display module with balanced and stable grounding
By using conductive cloth to connect the grounding copper foil of the FPC in wearable display modules, the problem of unstable grounding was solved, grounding consistency was ensured, driving performance was improved, and the risk of screen breakage was reduced.
Patent Information
- Application Number
- CN202423032644.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In the display module of wearable electronic devices, the grounding copper foil connecting the FPC is unstable with the device grounding, resulting in high grounding impedance, affecting electrostatic discharge, and may also cause grounding imbalance between driver ICs, affecting driving performance.
By attaching conductive cloth between the grounding copper foils of the FPC, the electrical connection stability between the grounding copper foils is ensured, and the thickness and coverage of the conductive cloth are set to ensure grounding consistency. The conductive cloth includes a conductive adhesive layer and a conductive substrate layer.
It achieves grounding balance between connected FPCs, avoids performance degradation between driver ICs, and provides protection to reduce the risk of screen breakage due to impact.
Smart Images
Figure CN223501511U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wearable display module technology, and in particular to a wearable display module with stable grounding balance. Background Technology
[0002] In display modules used in wearable electronic devices, there are generally two connecting FPCs. These two connecting FPCs are connected to two different driver ICs. When the display module is assembled into a wearable electronic device, both connecting FPCs need to be bent, and the grounding copper foil of the two FPCs will be connected to the grounding terminal of the electronic device. However, after the connecting FPCs are bent, there is a risk of unstable contact between the grounding copper foil and the grounding of the electronic device, resulting in high grounding impedance and affecting electrostatic discharge. If the grounding copper foil of one of the connecting FPCs is unstable, it will cause grounding imbalance between the two driver ICs, making the voltage to ground between the two driver ICs unstable and affecting driving performance.
[0003] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a wearable display module with stable grounding.
[0005] The technical solution of this utility model is as follows: This utility model provides a wearable display module with stable grounding balance, including: a display glass assembly, a first connecting FPC and a second connecting FPC, both the first connecting FPC and the second connecting FPC are connected to the display glass assembly, a first grounding copper foil is formed on the first connecting FPC, and a second grounding copper foil is formed on the second connecting FPC. After the first connecting FPC and the second connecting FPC are bent, the first grounding copper foil and the second grounding copper foil are pasted with conductive cloth and electrically connected.
[0006] Furthermore, the conductive cloth completely covers the first grounding copper foil and the second grounding copper foil.
[0007] Furthermore, the distance between the edges of the first and second grounding copper foils and the corresponding edges of the conductive cloth is greater than or equal to 1 mm.
[0008] Furthermore, the thickness of the conductive cloth is 0.05 mm to 0.1 mm.
[0009] Furthermore, the conductive cloth includes a conductive adhesive layer and a conductive substrate layer stacked together, and the conductive cloth is used to bond the first grounding copper foil and the second grounding copper foil.
[0010] By adopting the above solution, the beneficial effect of this utility model is that by setting a conductive cloth to connect the grounding copper foil of the two connected FPCs, the consistency and stability of the grounding between the two connected FPCs are ensured, and the driving performance of the two driver ICs is avoided due to grounding imbalance; at the same time, the conductive cloth also has a certain protective function, reducing the risk of screen breakage caused by impact. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the front structure of the display module's connecting FPC in an unbent state according to an embodiment of the present invention.
[0012] Figure 2 This is a schematic diagram of the back structure of the display module's connecting FPC in a bent state according to an embodiment of the present invention. Detailed Implementation
[0013] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0014] Please refer to the following: Figure 1 and Figure 2 In this embodiment, the present invention provides a wearable display module with stable grounding balance, including: a display glass assembly 1, a first connecting FPC 2, and a second connecting FPC 3, both of which are connected to the display glass assembly 1. It is worth noting that the connection in this solution can be a direct connection or an indirect connection through other components. A first grounding copper foil 21 is formed on the first connecting FPC 2, and a second grounding copper foil 31 is formed on the second connecting FPC 3. After the first connecting FPC 2 and the second connecting FPC 3 are bent, the first grounding copper foil 21 and the second grounding copper foil 31 are adhered to and electrically connected by a conductive cloth 4, which is then grounded to an electronic device. The conductive cloth 4 has a thickness of 0.05mm to 0.1mm and includes a layered conductive adhesive layer and a conductive substrate layer. The first grounding copper foil 21 and the second grounding copper foil 31 are adhered to the conductive cloth 4 through the conductive adhesive layer. By setting the conductive cloth 4 to connect the first grounding copper foil 21 and the second grounding copper foil 31, the first grounding copper foil 21 and the second grounding copper foil 31 can be electrically connected through the conductive cloth 4. This ensures that the first grounding copper foil 21 and the second grounding copper foil 31 are directly and evenly grounded during operation, avoiding the problem of unbalanced grounding affecting the driving performance between the two driving ICs on the first connection path FPC 2 and the second connection path FPC 3. In addition, since the conductive adhesive is set between the display glass assembly 1 and other structural components of the electronic device, it can also play a buffering role, reducing the risk of screen breakage due to impact.
[0015] Furthermore, the conductive cloth 4 completely covers the first grounding copper foil 21 and the second grounding copper foil 31, that is, the side of the first grounding copper foil 21 facing the conductive cloth 4 and the side of the second grounding copper foil 31 facing the conductive cloth 4 are both connected to the conductive cloth 4, ensuring the bonding and electrical conduction effects.
[0016] Furthermore, the distance between the edge of the first grounding copper foil 21 and the second grounding copper foil 31 and the corresponding edge of the conductive cloth 4 is greater than or equal to 1mm, which can ensure that the conductive cloth 4 can completely cover the first grounding copper foil 21 and the second grounding copper foil 31, avoiding the connection effect being affected by bending error, attachment error and other problems.
[0017] In summary, this solution ensures the consistency and stability of grounding between the two connected FPCs by setting conductive cloth to connect the grounding copper foil of the two connected FPCs, avoiding the impact on the driving performance of the two driver ICs due to grounding imbalance; at the same time, the conductive cloth also has a certain protective function, reducing the risk of screen breakage due to impact.
[0018] 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 wearable display module with stable grounding balance, characterized in that, include: The display glass assembly includes a first connecting FPC and a second connecting FPC, both of which are connected to the display glass assembly. A first grounding copper foil is formed on the first connecting FPC, and a second grounding copper foil is formed on the second connecting FPC. After the first connecting FPC and the second connecting FPC are bent, the first grounding copper foil and the second grounding copper foil are adhered to the conductive cloth and electrically connected.
2. The wearable display module with stable grounding balance according to claim 1, characterized in that, The conductive cloth completely covers the first grounding copper foil and the second grounding copper foil.
3. The wearable display module with stable grounding balance according to claim 2, characterized in that, The distance between the edge of the first grounding copper foil and the edge of the second grounding copper foil and the corresponding edge of the conductive cloth is greater than or equal to 1 mm.
4. The wearable display module with stable grounding balance according to any one of claims 1 to 3, characterized in that, The thickness of the conductive cloth is 0.05 mm to 0.1 mm.
5. The wearable display module with stable grounding balance according to any one of claims 1 to 3, characterized in that, The conductive cloth includes a conductive adhesive layer and a conductive substrate layer stacked together, and the first grounding copper foil and the second grounding copper foil are bonded to the conductive cloth through the conductive adhesive layer.