High-permeability flexible display screen circuit with high production qualified rate
By adjusting the pad placement angle and signal line layout, the problems of difficulty in connecting pads and poor weather resistance in traditional transparent displays are solved, and a high-transparent flexible display line with high production pass rate and weather resistance are achieved.
Patent Information
- Application Number
- CN202323538434.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The unreasonable placement angle of the pads in traditional transparent display screens leads to difficulty in connecting capillary lines, which easily leads to short circuits and pads falling off, increasing production difficulty and cost, and the multiple turns of the signal line lead to line breaking and poor weather resistance.
Adjust the placement angle of the pads so that the positive and negative terminals are arranged in the longitudinal direction, connect the main line through a straight segment sub-line, cancel the capillary line, and directly connect the main line, and connect adjacent pads through a horizontal signal line, signal line Optional as a straight line segment or a double lead line, perpendicular to the sub-line.
It improves the production pass rate, enhances the bonding firmness between the pad and the substrate, reduces line costs, avoids line breaks caused by thermal expansion and contraction, and improves weather resistance.
Smart Images
Figure CN222216051U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of display screens, and in particular relates to a highly transparent flexible display screen circuit with a high production qualification rate. Background Art
[0002] Nowadays, transparent display screens are a new type of screen structure. With the miniaturization of electronics, the requirements for the size of the lamp beads themselves and the connection spacing in transparent display screens are getting smaller and smaller, so that the display quality of the display screen can be improved through a denser layout of small circuits.
[0003] The current problem is that, with reference to the attached Figure 1 The traditional pad circuit layout has an unreasonable pad placement angle, which results in the positive and negative poles needing to be connected to the main circuit through a capillary circuit. The capillary circuit is small and thin, which makes it more difficult to patch and is very easy to cause a short circuit. In addition, in order to avoid right angles and sharp angles between signal lines, two additional turns are required for connection, thereby lengthening the line length. This not only increases the material and patch costs and adds additional production difficulty, but also easily causes thermal expansion and contraction due to large temperature differences when used outdoors, which can easily lead to capillary circuit breakage and poor weather resistance. Utility Model Content
[0004] In response to the many shortcomings of the pad placement and design layout in existing transparent display screens, the purpose of this utility model is to provide a high-transparency flexible display screen circuit with a high production pass rate. The high-transparency display screen circuit with a high production pass rate is applied to a single-layer circuit board. The high-transparency display screen circuit with a high production pass rate includes several parallel main circuits.
[0005] And connect several pads on the main circuit, connect the pads directly to the main circuit, without the need for additional capillary circuit connection. Traditionally, due to defects in pad placement and layout, it is necessary to extend the connection to the main circuit through a capillary circuit. Since the capillary circuit itself is small, it is easy for the solder paste to overflow during the patch, causing a short circuit problem, resulting in a lower production qualification rate.
[0006] Moreover, the bonding reliability of the pad on the substrate is not high, which may easily cause the pad to fall off.
[0007] Secondly, the thin capillary lines are prone to breakage and damage.
[0008] In this design, the placement angle of the pad is adjusted to solve the above-mentioned existing problems.
[0009] Specifically, the pads are usually square or rectangular. In this design, the pads are formed with a positive terminal (VCC terminal) and a negative terminal (GND terminal) arranged in a first direction, and a first signal terminal and a second signal terminal arranged in a second direction;
[0010] The first direction is perpendicular to the second direction.
[0011] The positive terminal and the negative terminal are connected to the main circuit by a straight line sub-circuit, and the welding point is thickened, so as to improve the production qualification rate. Figure 1 From the perspective of the present invention, it is defined that when the line connecting the positive terminal and the center line of the first signal terminal is parallel to the horizontal line, it is 0°. In this design, the angle between the line connecting the positive terminal and the center line of the first signal terminal and the horizontal line is an acute angle, and is further preferably 45°, but is not limited to 45°.
[0012] In this solution, the angle between the line connecting the positive terminal and the center line of the first signal terminal and the horizontal line is 45°, which means that the positive terminal and the negative terminal are arranged in the longitudinal direction. Only one example is shown. It can be seen that the sub-circuit is a vertical line connecting the main circuit, so that the soldering pad is directly connected to the main circuit, the capillary circuit is eliminated, and the bonding strength between the soldering pad and the substrate is better. In addition, it is understandable that due to the relatively small capillary circuit, the solder paste is easily overflowed during patching, causing a short circuit, which also increases the production difficulty and the qualified rate of the patch.
[0013] In addition, since the transparent circuit board is used as the substrate, the circuit of this design is attached to the circuit board and forms a transparent display screen between the lamp beads.
[0014] In the present design, on the other hand, specifically, the first signal end between adjacent pads is connected to the second signal end of the previous pad through a signal line, and the second signal end is connected to the first signal end of the next pad through a signal line. The first signal end and the second signal end are arranged in a horizontal direction. The signal line can be selected as a double-lead line of a straight segment line or a non-straight segment line. The straight segment of this design is only used as one example. The signal line is arranged as a horizontal line, and the sub-line and the signal line are perpendicular. In this way, compared with the traditional line that requires the signal line to be extended by multiple turns, it not only saves the line patch cost, but also avoids the line breakage caused by the thermal expansion and contraction problem caused by the temperature difference when the traditional longer signal line is used outdoors, thereby having better weather resistance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the layout of existing traditional display screen circuits;
[0016] Figure 2 This is a schematic diagram of the layout of the high-transparency display screen circuit with high production qualification rate of the utility model. DETAILED DESCRIPTION
[0017] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.
[0018] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.
[0019] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.
[0020] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.
[0021] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.
[0022] like Figure 2 The utility model provides a high-transparency flexible display screen circuit with a high production qualification rate, which is applied to a single-layer circuit board. The high-transparency display screen circuit with a high production qualification rate includes integrating a plurality of parallel arranged main circuits 1;
[0023] And connect the pads on the main line 1, directly connect the pads to the main line 1, without the need for additional capillary line 2 connection, refer to Figure 1 Due to defects in the placement and layout of traditional pads, it is necessary to extend the connection to the main line 1 through a capillary line 2. Since the capillary line 2 itself is small, it is easy for the solder paste to overflow during the patch, causing a short circuit problem, resulting in a lower production qualification rate.
[0024] Moreover, the bonding reliability of the pad on the substrate is not high, which may easily cause the pad to fall off.
[0025] Secondly, the thin capillary circuit 2 is also prone to breakage and damage.
[0026] In this design, the placement angle of the pad is adjusted to solve the above-mentioned existing problems.
[0027] Specifically, the pads are usually square or rectangular. In this design, Figure 2 , the pad is formed with a positive terminal 3 (VCC terminal) and a negative terminal 4 (GND terminal) arranged in a first direction, and a first signal terminal 5 and a second signal terminal 6 arranged in a second direction;
[0028] The first direction is perpendicular to the second direction.
[0029] The positive terminal 3 and the negative terminal 4 are connected to the main line 1 by a straight line sub-line 7, and the welding point is thickened, so as to improve the production qualification rate. Figure 1 From the perspective of the present invention, it is defined that when the line connecting the positive terminal 3 and the center line of the first signal terminal 5 is parallel to the horizontal line, it is 0°. In this design, the angle between the line connecting the center line of the positive terminal 3 and the first signal terminal 5 and the horizontal line is an acute angle, and is further preferably 45°, but is not limited to 45°.
[0030] In this solution, the angle between the center line connecting the positive terminal 3 and the first signal terminal 5 and the horizontal line is 45°, which means that the positive terminal 3 and the negative terminal 4 are arranged in the longitudinal direction. Only one example is shown. It can be seen that the sub-circuit 7 is a vertical line connecting the main line 1, so that the soldering pad is directly connected to the main line 1, the capillary line 2 is eliminated, and the bonding strength between the soldering pad and the substrate is better. In addition, it is understandable that since the capillary line 2 is relatively small, the solder paste is easily overflowed during patch processing, causing a short circuit, which also increases the production difficulty and the qualified rate of the patch.
[0031] In addition, since the transparent circuit board is used as the substrate, the circuit of this design is attached to the circuit board and forms a transparent display screen between the lamp beads.
[0032] In the present design, on the other hand, specifically, the first signal end 5 between adjacent pads is connected to the second signal end 6 of the previous pad through the signal line 8, and the second signal end 6 is connected to the first signal end 5 of the next pad through the signal line 8. The first signal end 5 and the second signal end 6 are arranged in the horizontal direction. The signal line 8 can be selected as a double-lead line of a straight line segment or a non-straight line segment. The straight line segment of this design is only used as one example. The signal line 8 is arranged as a horizontal line, and the sub-line 7 and the signal line 8 are perpendicular. In this way, compared with the traditional line that requires the signal line 8 to be extended by multiple turns, it not only saves the line patch cost, but also avoids the line breakage caused by the thermal expansion and contraction problem caused by the temperature difference when the traditional longer signal line 8 is used outdoors, thereby having better weather resistance.
[0033] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.
Claims
1. A high-transparency flexible display screen circuit with a high production qualification rate, applied to a single-layer circuit board, characterized in that: Integrate several parallel arranged main lines; and Connecting a plurality of pads on the main circuit, the pads are formed with a positive terminal and a negative terminal arranged in a first direction, and a first signal terminal and a second signal terminal arranged in a second direction, wherein the first direction is perpendicular to the second direction; The positive terminal and the negative terminal are connected to the main circuit by a sub-circuit of a straight line segment; Between adjacent pads, a first signal end is connected to a second signal end of a previous pad through a signal line, and a second signal end is connected to a first signal end of a next pad through a signal line.
2. The high-transparency flexible display screen circuit with high production qualification rate according to claim 1, characterized in that: The angle between the line connecting the positive terminal and the midline of the first signal terminal and the horizontal line is an acute angle.
3. The high-transparency flexible display screen circuit with high production qualification rate according to claim 1, characterized in that: The angle between the line connecting the positive terminal and the midline of the first signal terminal and the horizontal line is 45°.
4. The high-transparency flexible display screen circuit with high production qualification rate according to claim 1, characterized in that: The positive terminal and the negative terminal are arranged along a longitudinal direction, and the first signal terminal and the second signal terminal are arranged along a transverse direction.
5. The high-transparency flexible display screen circuit with high production qualification rate according to claim 1, characterized in that: The sub-line is a vertical line connected to the main line.
6. The high-transparency flexible display screen circuit with high production qualification rate according to claim 1, characterized in that: The signal circuit is arranged horizontally, and the sub-circuits are perpendicular to the signal circuit.