Glue sealing structure of COB display screen
By designing the partition structure of the rectangular annular limit frame and limit plate on the COB display screen, the problems of uneven resin packaging and damage to the peripheral chip during chip repair are solved, and the precise limit and chip partition of the resin edge are achieved, improving the improvement of the improvement of the problem of uneven resin packaging and the problem of damage to the peripheral chip during chip repair. Package accuracy and security.
Patent Information
- Application Number
- CN202421017487.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The existing COB display lacks a limiting device when packaging resin, resulting in uneven positioning of the resin edges, difficult to regulate thickness, and easy to damage the peripheral chip during chip repair.
A rectangular annular limiting frame and multiple limiting plates are designed to form a partition structure to limit the resin range, and a wedge connection between slots and slots is formed to form a mesh structure to separate the chip area independently.
Effectively limit the edge position of the resin, ensure consistency of resin thickness, and avoid damage to other chips during chip repair, improving the accuracy and safety of the packaging.
Smart Images
Figure CN222214176U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of COB display screens, and in particular relates to a sealing structure of a COB display screen. Background Art
[0002] The COB display screen includes a PCB board, several driver chips, a current source, several LED chips and a mask, etc. When the COB display screen is manufactured, several driver chips, current sources, several LED chips and masks are integrated and packaged as light-emitting bodies on the same substrate. Resin is needed for packaging. The existing resin is directly dripped on the several driver chips, current sources, several LED chips and masks by gravity. However, there is no device for limiting the resin on the existing COB display screen, resulting in uneven positions at the edges of the resin, and the thickness of the resin package cannot be adjusted. In addition, since the resin is directly dripped on all the chips, when some of the chips are damaged and repaired, the resin at the damaged chip needs to be polished, and the existing resin is not dripped in partitions, which easily causes damage to the surrounding chips during maintenance. Utility Model Content
[0003] The purpose of the utility model is to provide a sealing structure of a COB display screen, so as to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure of a COB display screen, comprising: a display screen body with a packaging area on the rear side, a plurality of chips are arranged in partitions in the packaging area, and a rectangular ring-shaped limit frame is provided on the outer side cover of the plurality of chips, the limit frame is installed on the display screen body, and a limit area for resin limitation is formed on the limit frame, and the depth of the limit frame is greater than the thickness of the chip.
[0005] Preferably, the limiting frame is also equipped with a plurality of first limiting plates for longitudinally partitioning the chips, and the plurality of first limiting plates are respectively and sequentially arranged in the longitudinal direction of the limiting frame, and the plurality of chips are sequentially arranged between two adjacent first limiting plates.
[0006] Preferably, the limiting frame is also equipped with a plurality of second limiting plates for laterally partitioning the plurality of chips, and the plurality of second limiting plates are respectively and sequentially arranged in the lateral direction of the limiting frame, and a packaging space for accommodating the chip is formed between two adjacent first limiting plates and two adjacent second limiting plates.
[0007] Preferably, a plurality of first plugging grooves are formed at equal intervals on the top of the first limiting plate, and a plurality of second plugging grooves are formed at equal intervals on the bottom of the first limiting plate, and the first plugging grooves and the second plugging grooves can be plugged and wedged with each other.
[0008] Preferably, a plurality of first slots are evenly spaced on inner walls on both sides of the limit frame in the longitudinal direction, and two ends of the first limit plate are respectively inserted into the first slots on the coaxial center of the two sides.
[0009] Preferably, a plurality of second slots are evenly spaced on the inner walls on both sides of the limit frame, and the two ends of the second limit plate are respectively inserted into the coaxial second slots on both sides.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] (1) The utility model limits the resin in the chip area by adding a limiting frame, thereby avoiding uneven positions at the edges of the resin and limiting the thickness of the resin.
[0012] (2) The utility model adds a plurality of first limiting plates, and the plurality of chips in the limiting frame can be partitioned longitudinally through the plurality of first limiting plates.
[0013] (3) The utility model adds a plurality of second limiting plates, and the plurality of chips in the limiting frame can be partitioned horizontally through the plurality of second limiting plates.
[0014] (4) The utility model adds a first plug-in slot and a second plug-in slot, and the first plug-in slot and the second plug-in slot are plugged into each other, so that a plurality of first limiting plates and a plurality of second limiting plates can form a mesh structure, which is convenient for individually partitioning the chip. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a rear view of the utility model;
[0016] Figure 2 This is a front view of the limit frame, chip and display screen body of the utility model;
[0017] Figure 3 It is a front view of the limiting frame and the first limiting plate of the utility model;
[0018] Figure 4 It is a front view of the limiting frame and the second limiting plate of the utility model;
[0019] Figure 5 This is a three-dimensional diagram of the first limiting plate and the second limiting plate of the utility model when plugged in;
[0020] Figure 6 It is a distribution diagram of the limiting frame, the first slot and the second slot of the utility model;
[0021] In the figure: 1. display screen body; 2. limit frame; 3. first slot; 4. first limit plate; 5. second limit plate; 6. second slot; 7. chip; 8. first plug-in slot; 9. second plug-in slot. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] refer to Figure 1-2 As shown, the utility model provides a sealing structure of a COB display screen, comprising: a display screen body 1 with a packaging area on the rear side, a plurality of chips 7 are partitioned in the packaging area, and the outer covers of the plurality of chips 7 are provided with a limiting frame 2 with a rectangular ring structure, the limiting frame 2 is installed on the display screen body 1, and a limiting area for resin limiting is formed on the limiting frame 2, and the depth of the limiting frame 2 is greater than the thickness of the chip 7.
[0024] As mentioned above, when using the limiting frame 2 provided by the utility model, the edge of the resin can be trimmed by the limiting frame 2, and the height of the resin molding can be limited by the limiting frame 2.
[0025] In the present utility model, combined with Figure 3 As shown, the limiting frame 2 of this embodiment is also equipped with a plurality of first limiting plates 4 for longitudinally partitioning the chips 7. The plurality of first limiting plates 4 are respectively and sequentially arranged in the longitudinal direction of the limiting frame 2, and the plurality of chips 7 are sequentially arranged between two adjacent first limiting plates 4.
[0026] As mentioned above, when using the multiple first limit plates 4 provided by the utility model, when the multiple first limit plates 4 are inserted into the limit frame 2, multiple longitudinal partitions are formed in the limit frame 2 through the first limit plates 4, which is convenient for separating the multiple chips 7 and reducing damage to the remaining chips 7 when repairing the chip 7.
[0027] Further, in order to prevent the first limiting plate 4 from being displaced in the limiting frame 2, refer to Figure 3 and Figure 6 As shown, a plurality of first slots 3 are evenly spaced on the inner walls of both longitudinal sides of the limit frame 2, and the two ends of the first limit plate 4 are respectively inserted into the first slots 3 on the coaxial center of both sides. The first slots 3 allow the first limit plate 4 to be stably inserted into the limit frame 2 to prevent the first limit plate 4 from being displaced.
[0028] In the present utility model, combined with Figure 4 As shown, the limiting frame 2 of this embodiment is also equipped with a plurality of second limiting plates 5 for horizontally partitioning the plurality of chips 7. The plurality of second limiting plates 5 are respectively and sequentially arranged in the horizontal direction of the limiting frame 2, and a packaging space for accommodating the chip 7 is formed between two adjacent first limiting plates 4 and two adjacent second limiting plates 5.
[0029] As mentioned above, when using the multiple second limit plates 5 provided by the utility model, when the multiple second limit plates 5 are inserted into the limit frame 2, multiple horizontal partitions are formed in the limit frame 2 through the second limit plates 5, which is convenient for separating the multiple chips 7 and reducing damage to the remaining chips 7 when repairing the chip 7.
[0030] Further, in order to prevent the second limiting plate 5 from being displaced in the limiting frame 2, refer to Figure 4 and Figure 6 As shown, a plurality of second slots 6 are evenly spaced on the inner walls of the two lateral sides of the limit frame 2, and the two ends of the second limit plate 5 are respectively inserted into the second slots 6 on the coaxial center of the two sides. The second slots 6 allow the second limit plate 5 to be stably inserted into the limit frame 2 to prevent the second limit plate 5 from being displaced.
[0031] In the present utility model, combined with Figure 5 As shown, the top of the first limit plate 4 of this embodiment is provided with a plurality of first insertion slots 8 at equal intervals, and the bottom of the first limit plate 4 is provided with a plurality of second insertion slots 9 at equal intervals, and the first insertion slots 8 and the second insertion slots 9 can be plugged and wedged relative to each other. After the first limit plate 4 is installed in the limit frame 2, the second limit plate 5 is plugged into the first limit plate 4 through the first insertion slots 8 and the second insertion slots 9, so that the limit frame 2 is formed into a plurality of independent separation areas through the plurality of first limit plates 4 and the plurality of second limit plates 5, and some chips 7 are placed separately. When some chips 7 are damaged, only the resin in the separation area needs to be polished, and the chips 7 in other areas cannot be damaged.
[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sealing structure for a COB display screen, characterized in that: include: A display screen body (1) is provided with a packaging area at the rear side, a plurality of chips (7) are arranged in zones in the packaging area, a rectangular ring-shaped limit frame (2) is provided on the outer side of the plurality of chips (7), the limit frame (2) is mounted on the display screen body (1), a limit area for limiting the position of resin is formed on the limit frame (2), and the depth of the limit frame (2) is greater than the thickness of the chip (7).
2. The sealing structure of a COB display screen according to claim 1, characterized in that: A plurality of first limiting plates (4) for longitudinally partitioning the chips (7) are also installed in the limiting frame (2); the plurality of first limiting plates (4) are arranged in sequence in the longitudinal direction of the limiting frame (2); and the plurality of chips (7) are arranged in sequence between two adjacent first limiting plates (4).
3. The sealing structure of a COB display screen according to claim 2, characterized in that: A plurality of second limiting plates (5) for horizontally partitioning the plurality of chips (7) are also installed in the limiting frame (2); the plurality of second limiting plates (5) are respectively and sequentially arranged in the horizontal direction in the limiting frame (2); and a packaging space for accommodating the chip (7) is formed between two adjacent first limiting plates (4) and two adjacent second limiting plates (5).
4. The sealing structure of a COB display screen according to claim 3, characterized in that: The top of the first limiting plate (4) is provided with a plurality of first plug-in slots (8) at equal intervals, and the bottom of the first limiting plate (4) is provided with a plurality of second plug-in slots (9) at equal intervals. The first plug-in slots (8) and the second plug-in slots (9) can be plugged and wedged with each other.
5. The sealing structure of a COB display screen according to claim 2, characterized in that: A plurality of first slots (3) are evenly spaced on the inner walls on both sides of the limit frame (2) in the longitudinal direction, and the two ends of the first limit plate (4) are respectively inserted into the first slots (3) on the coaxial center on both sides.
6. The sealing structure of a COB display screen according to claim 3, characterized in that: A plurality of second slots (6) are evenly spaced on the inner walls on both sides of the limit frame (2), and the two ends of the second limit plate (5) are respectively inserted into the coaxial second slots (6) on both sides.