Display module easy to repair
By covering the insulated Maila and the air-absorbing area of the conductive adhesive on the display module FPC body to protect the component area, the problem of damage to the component pad during the FPC bending process is solved, and the product performance and reliability are improved, while saving costs and improving production efficiency.
Patent Information
- Application Number
- CN202420801535.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-04-15
AI Technical Summary
The existing display modules are prone to damage component pads during FPC bending, resulting in product quality and reliability problems, and high raw material costs and low production efficiency.
By covering the insulated Maila on the front of the module FPC body and attaching conductive glue to the back, an escape area is formed to protect the component area and avoid pulling the component area when the FPC is bent and reworked, ensuring the integrity of the pads and device.
It realizes that without using component sealant, meets product performance and reliability requirements, avoids the problems of three-sided curling after FPC bend and damage to component pads, while saving raw material costs and improving production efficiency.
Smart Images
Figure CN222762360U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display modules, and in particular to a display module that is easy to repair. Background Art
[0002] As the design of mobile phone structures becomes more and more mature, mobile phone manufacturers have more and more stringent requirements for display modules. They hope that the structural design of the module can be highly integrated, such as bending the FPC before shipping it to the customer's assembly plant; and if the bending is not in place, rework and bend it, which will not damage the performance of the product and save costs. The following three methods are more commonly used in the industry:
[0003] Solution 1: The entire bottom area of the display module component area is covered with conductive glue, and the components are sealed with glue. The disadvantage of this solution is that it is necessary to apply glue to the component pads to ensure that the component pads are not damaged when the FPC is bent during rework. The raw material cost is high, and additional equipment and processes are added, affecting production efficiency.
[0004] Solution 2: The entire bottom area of the display module component area is covered with conductive glue, and no sealing glue is applied to the components. The disadvantages of this solution are: the component pad area is not protected by sealing glue, there is conductive glue at the bottom, the conductive glue and the backlight iron frame are tightly adhered, and the component pads are easily broken when the FPC is torn off the frame, affecting product quality.
[0005] Solution 3: There is no conductive glue in the entire bottom area of the display module component area, and the FPC bending and conductive glue attachment are completed during the mobile phone assembly process. The disadvantage of this solution is that it is necessary to convince downstream customers to cooperate in attaching conductive glue and bending FPC, which has certain limitations.
[0006] Therefore, the prior art has defects and needs to be improved. Utility Model Content
[0007] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a display module that is easy to repair.
[0008] The technical solution of the utility model is as follows: The utility model provides a display module that is easy to repair, including: a liquid crystal module, a module FPC body and a backlight module, the liquid crystal module and the backlight module are stacked, a connecting end of the module FPC body is bound and connected to the liquid crystal module, a component area is formed on the front of the module FPC body, and no sealing glue is set in the component area, an insulating Mylar is attached to the front of the module FPC body, and the insulating Mylar covers the component area, and a conductive glue is attached to the back of the module FPC body, and a blanking area is formed on the conductive glue, and the blanking area corresponds to the back area of the component area, and the distance between the edge of the blanking area and the corresponding edge of the back area of the component area is 0.7mm-1mm, and the module FPC body is bent and adhered to the back of the backlight module through the conductive glue.
[0009] Furthermore, the distance between the edge of the insulating Mylar and the corresponding edge of the component area is 1 mm-3 mm.
[0010] By adopting the above scheme, the beneficial effects of the utility model are: 1. The component area is scratch-proof and water-proof by insulating Mylar, and the component area is avoided by setting a clearance area on the conductive glue to prevent the component area from being pulled during rework to cause damage to the pads and components. The performance and reliability requirements of the product can be met without applying component sealing glue, such as: the three sides of the FPC will not warp after bending, and the component pads will not be damaged during rework and bending of the FPC, resulting in reliability failure. 2. The process of applying component sealing glue is omitted, saving raw material costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic structural diagram of the front side of a display module in an unbent state according to an embodiment of the present invention.
[0012] Figure 2 It is a schematic structural diagram of the reverse side of a display module in an unbent state according to an embodiment of the present invention.
[0013] Figure 3 It is a structural schematic diagram of the reverse side of the module after being bent, in which the module FPC body is in a perspective state according to an embodiment of the present invention. DETAILED DESCRIPTION
[0014] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0015] Please refer to Figures 1 to 3In this embodiment, the utility model provides a display module that is easy to repair, including: a liquid crystal module 1, a module FPC body 2 and a backlight module 3, the liquid crystal module 1 and the backlight module 3 are stacked, a connection end of the module FPC body 2 is bound and connected to the liquid crystal module 1, a component area 21 is formed on the front of the module FPC body 2, and the component area 21 is not provided with a sealing glue, an insulating Mylar 22 is attached to the front of the module FPC body 2, and the insulating Mylar 22 covers the component area 21, and a conductive glue 23 is attached to the back of the module FPC body 2, and a gap area 231 is formed on the conductive glue 23, and the gap area 231 corresponds to the cover The back area of the component area 21, and the distance between the edge of the avoidance area 231 and the corresponding edge of the back area of the component area 21 is 0.7mm-1mm, that is, the avoidance area 231 is about 0.7mm-1mm larger than the back area of the component area 21 on one side. After the module FPC body 2 is bent, it is pasted on the back side (i.e., the iron frame) of the backlight module 3 through the conductive adhesive 23. This structural design can ensure that the conductive adhesive 23 can achieve the corresponding grounding and conductive functions and the fixing function of the module FPC body 2, and can also ensure that the conductive adhesive 23 will not pull the back area of the component during rework, thereby avoiding problems such as pad breakage and component desoldering.
[0016] Furthermore, the distance from the edge of the insulating Mylar 22 to the corresponding edge of the component area 21 is 1 mm-3 mm, that is, the insulating Mylar 22 is 1 mm-3 mm larger than the single side of the component area 21, which can ensure that the insulating Mylar 22 can achieve good protection function.
[0017] In summary, the beneficial effects of this solution are: 1. The component area is scratch-proof and water-proof by insulating Mylar, and the component area is avoided by setting an avoidance area on the conductive glue to prevent the component area from being pulled during rework to cause damage to the pads and components. The performance and reliability requirements of the product can be met without applying component sealing glue, such as: the three sides of the FPC will not warp after bending, and the component pads will not be damaged during rework and bending of the FPC, resulting in reliability failure. 2. The component sealing glue application process is omitted, saving raw material costs and improving production efficiency.
[0018] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A display module that is easy to repair, characterized in that: include: A liquid crystal module, a module FPC body and a backlight module, wherein the liquid crystal module and the backlight module are stacked, a connection end of the module FPC body is bound and connected to the liquid crystal module, a component area is formed on the front of the module FPC body, no sealing glue is provided in the component area, an insulating Mylar is attached to the front of the module FPC body, the insulating Mylar covers the component area, a conductive glue is attached to the back of the module FPC body, a blanking area is formed on the conductive glue, the blanking area corresponds to the back area of the component area, and the distance between the edge of the blanking area and the corresponding edge of the back area of the component area is 0.7mm-1mm, and the module FPC body is bent and attached to the back of the backlight module through the conductive glue.
2. The easily repairable display module according to claim 1, characterized in that: The distance between the edge of the insulating Mylar and the corresponding edge of the component area is 1 mm-3 mm.