Display screen structure with driving chip and PI reinforcing plate
By designing a PI reinforcement board with aligning part in the display structure, the problem of poor adhesion accuracy of PI reinforcement board in the existing technology is solved, and more efficient adhesion operation is achieved, and the overall adhesion accuracy is improved. and efficiency.
Patent Information
- Application Number
- CN202420215847.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-29
AI Technical Summary
The existing display screen with COF packaged driver chip lacks alignment marks during the attachment process of the PI reinforcement board and the ZIF plug-in end, resulting in poor adhesion accuracy and affecting efficiency.
Design a display screen structure with a driver chip and PI reinforcement board. The PI reinforcement board includes an attachment part and an alignment part. The attachment part forms a right angle with the alignment part, which facilitates alignment and improves the adhesion accuracy. PI reinforcement The plate includes a PI block and an adhesive layer, the side of the adhesive layer away from the PI block is provided with tape for protection and attachment.
By aligning the alignment part with the COF Dummy circuit block, the adhesion accuracy and efficiency of the PI reinforcement board are significantly improved, and the loss of manpower and material resources is reduced.
Smart Images
Figure CN222216117U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display screens, in particular to a display screen structure with a driving chip and a PI reinforcement plate. Background Art
[0002] With the advancement of technology and the improvement of living standards, smart wearable devices such as bracelets or watches are becoming more and more common. The integration of various functions of wearable electronic products is getting higher and higher, and the cost competition in the industry is becoming more and more fierce. Major manufacturers are trying their best to optimize product design and reduce the loss of manpower and material resources.
[0003] In the prior art, a display screen with a COF packaged driver chip will attach a PI reinforcing plate to the ZIF plug-in end of the driver chip, and then use a COF punching jig to punch out the excess reinforcing plate shape at the ZIF plug-in end. However, this PI reinforcing plate has no reference alignment mark during the attachment process to the ZIF plug-in end, and the attachment accuracy is poor. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a display screen structure with a driving chip and a PI reinforcement plate.
[0005] The purpose of this utility model is achieved through the following technical solutions:
[0006] A display screen structure with a driver chip and a PI reinforcement board comprises: a display screen body, an FPC bound to the display screen body, a driver chip bound to the FPC, a ZIF connector plug end provided at one end of the FPC, a PI reinforcement board attached to the ZIF connector plug end, and the PI reinforcement board comprising an alignment portion for alignment.
[0007] In one embodiment, a COF body is disposed on the FPC, and three COF Dummy circuit blocks are disposed in an area of the FPC outside the COF body.
[0008] In one embodiment, the three COF Dummy circuit blocks are respectively a first circuit block, a second circuit block and a third circuit block, the first circuit block is located on the left side of the COF body, and the second circuit block and the third circuit block are respectively located on the right side of the COF body.
[0009] In one embodiment, the upper end of the COF body is the output end for connecting the driver chip to the display screen body, the lower end of the COF body is the input end of the driver chip, and the ZIF connector plug end is located at the lower end of the COF body.
[0010] In one embodiment, the first circuit block is located on the left side of the lower end of the COF body, the second circuit block and the third circuit block are respectively located at the upper and lower ends close to the right side of the COF body, and the lower ends of the first circuit block and the second circuit block are flush with the lower end of the COF body.
[0011] In one embodiment, the PI reinforcement plate further includes an attachment portion, and the attachment portion is attached to a contact position between the ZIF connector plug end and the COF body.
[0012] In one embodiment, there are two alignment parts, which are respectively located on both sides of the attachment part, and the upper edges of the two alignment parts are respectively connected to the lower edges of the first circuit block and the second circuit block on both sides of the COF body.
[0013] In one embodiment, the thickness of the PI reinforcement plate is 0.15 mm.
[0014] In one embodiment, the PI reinforcement plate includes a PI block and an adhesive layer disposed on one side of the PI block, and a side of the adhesive layer away from the PI block is provided with glue.
[0015] In one embodiment, a release paper for protection is provided on a side of the adhesive layer away from the PI block.
[0016] Compared with the prior art, the utility model has at least the following advantages:
[0017] The utility model discloses a display screen structure with a driving chip and a PI reinforcement plate. The PI reinforcement plate is provided, and the PI reinforcement plate includes an attachment portion and two alignment portions. The attachment portion and the two alignment portions are respectively arranged at right angles to facilitate the alignment of the two alignment portions with the first circuit block and the second circuit block, so that the attachment operation of the attachment portion is facilitated after alignment, thereby improving the attachment efficiency and attachment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.
[0019] Figure 1 A schematic diagram of a display screen structure with a driver chip and a PI reinforcement board provided by the utility model;
[0020] Figure 2 This is a structural schematic diagram of a display screen structure with a driver chip and a PI reinforcement board provided by the utility model after the PI reinforcement board is attached;
[0021] Figure 3The utility model provides a structural schematic diagram of a PI reinforcing plate in a display screen structure with a driving chip and a PI reinforcing plate.
[0022] Description of the drawings: 10. Display screen body; 20. FPC; 30. Driver chip; 40. COF body; 50. First circuit block; 60. Second circuit block; 70. Third circuit block; 80. ZIF connector plug-in end; 90. PI reinforcement board; 901. PI block; 902. Adhesive layer; 91. Attachment part; 92. Alignment part; 100. Release paper. DETAILED DESCRIPTION
[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.
[0024] A display screen structure with a driver chip and a PI reinforcement board, referring to Figure 1 , including a display screen body 10, to which an FPC 20 is bound. The FPC 20 is a flexible circuit board and is vertically arranged.
[0025] Reference Figure 1 , the FPC20 is bound with the driver chip 30 by COF binding technology, COF is a grain soft film assembly technology for fixing the driver chip 30 on the FPC20. A COF body 40 is provided on the FPC20, and the driver chip 30 is located on the COF body 40. Three COF Dummy circuit blocks are provided on the FPC20 relative to the area outside the COF body 40, and the three COF Dummy circuit blocks are respectively a first circuit block 50, a second circuit block 60 and a third circuit block 70. The first circuit block 50 is located on the left side of the COF body 40, and the second circuit block 60 and the third circuit block 70 are respectively located on the right side of the COF body 40. The second circuit block 60 and the third circuit block 70 are respectively located at the upper and lower ends close to the right side of the COF body 40.
[0026] Reference Figure 1 The upper end of the COF body 40 is the output end for connecting the driver chip 30 to the display screen body 10, and the lower end of the COF body 40 is located at the end of the FPC 20 away from the display screen body 10, and the lower end of the COF body 40 is the input end of the driver chip 30. The lower end of the COF body 40 is provided with a ZIF connector plug end 80, which is used to connect the driver chip 30 to the customer's mainboard.
[0027] Further, refer to Figure 1 The first circuit block 50 is located on the left side of the lower end of the COF body 40 , while the second circuit block 60 is located on the right side of the input end of the COF body 40 . The lower ends of the first circuit block 50 and the second circuit block 60 are both flush with the lower end of the COF body 40 .
[0028] Reference Figure 2 , a PI reinforcing plate 90 is attached to the ZIF connector plug end 80, and the PI reinforcing plate 90 covers the entire range of the ZIF connector plug end 80. The PI reinforcing plate 90 is arranged in a T-shape, and includes an attaching portion 91 and an alignment portion 92. There are two alignment portions 92, and the two alignment portions 92 are respectively located on both sides of the attaching portion 91 to form a T-shaped PI reinforcing plate 90. The attaching portion 91 is located in the middle of the two alignment portions 92. The attaching portion 91 is used to attach to the position where the ZIF connector plug end 80 contacts the COF body 40, and the two alignment portions 92 are used for alignment to facilitate the attachment of the PI reinforcing plate 90.
[0029] Reference Figure 2 The upper edges of the two alignment parts 92 are respectively connected to the lower edges of the first circuit block 50 and the second circuit block 60 on both sides of the COF body 40, and the attachment parts 91 are respectively arranged at right angles with the two alignment parts 92 to facilitate the alignment of the two alignment parts 92 with the first circuit block 50 and the second circuit block 60, so that the attachment operation of the attachment part 91 is facilitated after alignment, thereby improving the attachment efficiency and attachment accuracy.
[0030] Further, refer to Figure 3 The PI reinforcement plate 90 includes a PI block 901 and an adhesive layer 902 arranged on one side of the PI block 901. The side of the adhesive layer 902 away from the PI block 901 is provided with glue so that the PI block 901 can be attached to the ZIF connector plug-in end 80.
[0031] Further, refer to Figure 3 , the thickness of the PI reinforcing plate 90 is 0.15 mm.
[0032] Further, refer to Figure 3 A release paper 100 is provided on the side of the adhesive layer 902 away from the PI block 901. The release paper 100 is used to protect the adhesive layer 902 before the PI reinforcement plate 90 is attached to the ZIF connector plug end 80 to prevent dust and other debris from sticking to the adhesive side of the adhesive layer 902.
[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A display screen structure with a driver chip and a PI reinforcement plate, characterized in that: include: A display screen body (10), wherein an FPC (20) is bound to the display screen body (10), a driving chip (30) is bound to the FPC (20), a ZIF connector plug end (80) is provided at one end of the FPC (20), a PI reinforcing plate (90) is attached to the ZIF connector plug end (80), and the PI reinforcing plate (90) includes an alignment portion (92) for alignment.
2. A display screen structure with a driver chip and a PI reinforcement plate according to claim 1, characterized in that: A COF body (40) is arranged on the FPC (20), and three COF Dummy circuit blocks are arranged on the FPC (20) in an area outside the COF body (40).
3. A display screen structure with a driver chip and a PI reinforcement plate according to claim 2, characterized in that: The three COF Dummy circuit blocks are respectively a first circuit block (50), a second circuit block (60) and a third circuit block (70); the first circuit block (50) is located on the left side of the COF body (40), and the second circuit block (60) and the third circuit block (70) are respectively located on the right side of the COF body (40).
4. A display screen structure with a driver chip and a PI reinforcement plate according to claim 3, characterized in that: The upper end of the COF body (40) is the output end for connecting the driving chip (30) and the display screen body (10), the lower end of the COF body (40) is the input end of the driving chip (30), and the ZIF connector plug-in end (80) is located at the lower end of the COF body (40).
5. A display screen structure with a driver chip and a PI reinforcement plate according to claim 4, characterized in that: The first circuit block (50) is located on the left side of the lower end of the COF body (40), the second circuit block (60) and the third circuit block (70) are respectively located at the upper and lower ends close to the right side of the COF body (40), and the lower ends of the first circuit block (50) and the second circuit block (60) are both flush with the lower end of the COF body (40).
6. A display screen structure with a driver chip and a PI reinforcement plate according to claim 5, characterized in that: The PI reinforcing plate (90) further comprises an attaching portion (91), wherein the attaching portion (91) is attached to a contact position between the ZIF connector plug-in end (80) and the COF body (40).
7. A display screen structure with a driver chip and a PI reinforcement plate according to claim 6, characterized in that: There are two alignment parts (92), the two alignment parts (92) are respectively located on both sides of the attachment part (91), and the upper edges of the two alignment parts (92) are respectively connected to the lower edges of the first circuit block (50) and the second circuit block (60) on both sides of the COF body (40).
8. The display screen structure with a driving chip and a PI reinforcement plate according to claim 1, characterized in that: The thickness of the PI reinforcing plate (90) is 0.15 mm.
9. A display screen structure with a driver chip and a PI reinforcement plate according to claim 8, characterized in that: The PI reinforcing plate (90) comprises a PI block (901) and an adhesive layer (902) arranged on one side of the PI block (901), and a side of the adhesive layer (902) away from the PI block (901) is provided with glue.
10. A display screen structure with a driver chip and a PI reinforcement plate according to claim 9, characterized in that: A release paper (100) for protection is provided on the side of the adhesive layer (902) away from the PI block (901).