Wiring structure for MIPI circuit of display module

Abstract

The utility model discloses a routing structure for a display module MIPI circuit, which comprises a plurality of DATA differential line pairs and a plurality of GND lines, the DATA differential line pairs and the GND lines are arranged in a staggered manner, each DATA differential line pair comprises a first DATA differential line and a second DATA differential line, and the first DATA differential line and the second DATA differential line are respectively provided with a bending structure. When the line length of the first DATA differential line and the second DATA differential line is shorter than that of other lines, the line length of the first DATA differential line and the second DATA differential line can be increased through the concave shape, the line length of the first DATA differential line and the second DATA differential line is close to that of other lines, the wiring structure is compact through the winding mode, and the wiring efficiency is improved. According to the MIPI circuit of the display module, excessive horizontal space is not additionally increased, the wiring space of other circuits is not occupied, the differential impedance difference value between the circuits is effectively reduced, and therefore the stability and reliability of the MIPI circuit of the display module are improved.

Description

Technical Field

[0001] The utility model relates to a display module MIPI circuit, more specifically, to a wiring structure for the display module MIPI circuit. Background Art

[0002] Usually, the MIPI routing of mobile phone display modules is an important line, generally including DATA lines and CLK lines. In order to reduce the differential impedance difference between each group of lines, it is generally required that the routing lengths between each group of lines remain close, such as the length difference between the DATA differential line and the CLK differential line pair must be less than 2.0mm. However, due to the influence of FPC shape, other lines, placement of electronic components, etc., after the DATA line and CLK line are routed in parallel, there will always be a large length difference between each group of lines, affecting the stability of the MIPI routing.

[0003] Chinese utility model patent document CN220021830U discloses a MIPI circuit punching structure of a display screen FPC connector position, the MIPI circuit punching structure of the display screen FPC connector position comprises an FPC body, the tail of the FPC body is provided with a plurality of binding position gold fingers, one side of the binding position gold fingers is provided with a plurality of extension position gold fingers, the extension position gold fingers correspond to the binding position gold fingers one by one, and the extension position gold fingers are separated from the binding position gold fingers by a preset isolation distance. The isolation distance is 1 mm to 1.5 mm. The isolation distance is 1.2 mm. The extension position gold finger includes a first extension bar, a second extension bar, a third extension bar, a fourth extension bar, a fifth extension bar, a sixth extension bar, a seventh extension bar, an eighth extension bar, a ninth extension bar, a tenth extension bar, an eleventh extension bar, a twelfth extension bar, a thirteenth extension bar, a fourteenth extension bar, and a fifteenth extension bar, wherein the first extension bar, the fourth extension bar, the seventh extension bar, the tenth extension bar, and the thirteenth extension bar are connected to the GND line, the second extension bar and the third extension bar correspond to the DO- signal and the DO+ signal respectively, and the fifth extension bar and the sixth extension bar correspond to the D 1-signal, D1+signal, the eighth extension bar and the ninth extension bar correspond to CLK-signal and CLK+signal respectively, the eleventh extension bar and the twelfth extension bar correspond to D2_signal and D2+signal respectively, the fourteenth extension bar and the fifteenth extension bar correspond to D3-signal and D3+signal respectively, the second extension bar, the fifth extension bar, the eighth extension bar, the eleventh extension bar and the fourteenth extension bar are all provided with auxiliary connection bars and auxiliary connection holes, and the third extension bar, the sixth extension bar, the ninth extension bar, the twelfth extension bar and the fifteenth extension bar are all provided with positive connection bars and positive connection holes. The length of the auxiliary connection bar is greater than that of the positive connection bar. The area of ​​the auxiliary connection hole is the same as that of the positive connection hole. An insulating isolation opening is provided between the extension position gold finger and the binding position gold finger. The interior of the insulating isolation opening is filled with insulating glue. A plurality of insulating isolation holes arranged side by side are provided between the extension position gold finger and the binding position gold finger. The interior of the insulating isolation hole is filled with insulating glue.

[0004] Obviously, the patent provides a MIPI line punching structure for the FPC connector of the display screen. Since the extension position gold finger and the binding position gold finger adopt the same style and the same distance of routing punching, it can not only ensure the success of the connection and wiring, but also ensure the consistency of the signals of the five groups of data signal lines during the transmission process, thus ensuring the display effect of the display screen. However, this structure cannot solve the problem of inconsistent length of the existing MIPI routing. Utility Model Content

[0005] Based on this, it is necessary to provide a routing structure for the MIPI line of the display module in response to the above technical problems. The routing structure for the MIPI line of the display module includes several DATA differential line pairs and several GND lines. The DATA differential line pairs are staggered with the GND lines. The DATA differential line pairs include a first DATA differential line and a second DATA differential line. The first DATA differential line and the second DATA differential line both have a bending structure. When the line length of the first DATA differential line and the second DATA differential line is shorter than that of the other lines, the line length of the first DATA differential line and the second DATA differential line can be increased by a concave shape, and the line length of the first DATA differential line and the second DATA differential line can be made close to that of other groups of lines. This winding method has a compact routing structure, does not add too much horizontal space, and does not occupy the routing space of the other lines. It effectively reduces the differential impedance difference between the groups of lines, thereby improving the stability and reliability of the MIPI line of the display module. Since a first fillet is provided at the corner of the concave shape, static electricity can be effectively avoided.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A wiring structure for a display module MIPI line, the wiring structure for the display module MIPI line comprises a plurality of DATA differential line pairs and a plurality of GND lines, the DATA differential line pairs and the GND lines are arranged alternately, the DATA differential line pairs comprise a first DATA differential line and a second DATA differential line, and the first DATA differential line and the second DATA differential line both have a bending structure.

[0008] As a preferred implementation of the wiring structure for the MIPI line of the display module provided by the utility model, the line width of the first DATA differential line and the second DATA differential line are both 0.05 mm.

[0009] As a preferred implementation of the wiring structure for the MIPI line of the display module provided by the utility model, the line distance between the first DATA differential line and the second DATA differential line is 0.1 mm.

[0010] As a preferred implementation of the routing structure for the MIPI line of the display module provided by the utility model, the line width of the GND line is 0.2 mm.

[0011] As a preferred implementation of the wiring structure for the MIPI line of the display module provided by the utility model, the bending structure is in a concave shape.

[0012] As a preferred implementation of the wiring structure for the MIPI line of the display module provided by the utility model, a first rounded corner is provided at the corner of the concave shape.

[0013] As a preferred implementation of the routing structure for the MIPI line of the display module provided by the utility model, the bending structure is triangular.

[0014] As a preferred implementation of the wiring structure for the MIPI line of the display module provided by the utility model, a second rounded corner is provided at the corner of the triangle.

[0015] As a preferred implementation of the routing structure for the MIPI line of the display module provided by the utility model, the bending structure is trapezoidal.

[0016] As a preferred implementation of the wiring structure for the MIPI line of the display module provided by the utility model, a third rounded corner is provided at the corner of the trapezoid.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a wiring structure for a display module MIPI line. When the line lengths of the first DATA differential line and the second DATA differential line are shorter than the remaining lines, the line lengths of the first DATA differential line and the second DATA differential line can be increased by a concave shape, so that the line lengths of the first DATA differential line and the second DATA differential line are close to those of other groups of lines. This winding method has a compact wiring structure, does not add excessive horizontal space, and does not occupy the wiring space of the remaining lines, effectively reducing the differential impedance difference between the groups of lines, thereby improving the stability and reliability of the display module MIPI line. Since a first rounded corner is provided at the corner of the concave shape, static electricity can be effectively avoided.

[0019] In addition, the bending structure can be made into a triangle. The second rounded corner is provided at the corner of the triangle. By using the bending structure formed by the triangle, the line length of the first DATA differential line and the second DATA differential line can be made close to that of other groups of lines, effectively reducing the differential impedance difference between each group of lines, thereby improving the stability and reliability of the display module MIPI line. Since the second rounded corner is provided at the corner of the triangle, static electricity can be effectively avoided.

[0020] In addition, the bending structure can be made into a trapezoid. The third fillet is provided at the corner of the trapezoid. By using the bending structure formed by the trapezoid, the line length of the first DATA differential line and the second DATA differential line can be made close to that of other groups of lines, effectively reducing the differential impedance difference between the groups of lines, thereby improving the stability and reliability of the display module MIPI line. Since the third fillet is provided at the corner of the trapezoid, static electricity can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] FIG1 is a schematic diagram of a wiring structure for a MIPI line of a display module according to the present invention;

[0023] FIG. 2 is a schematic diagram of a partial structure of a wiring structure for a MIPI line of a display module in FIG. 1 ;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of another embodiment of the wiring structure for the MIPI line of the display module of the utility model;

[0025] Figure 4 for Figure 3 A partial structural diagram of the routing structure of the MIPI line of the display module;

[0026] Figure 5 It is a three-dimensional structural schematic diagram of another embodiment of the wiring structure for the MIPI line of the display module of the utility model;

[0027] Figure 6 for Figure 5 A partial structural diagram of the routing structure of the MIPI line of the display module;

[0028] The markings in the figure are as follows: 1. DATA differential line pair; 11. First DATA differential line; 12. Second DATA differential line; S. Bend structure; S1. Concave shape; S11. First rounded corner; S2. Triangle; S21. Second rounded corner; S3. Trapezoid; S31. Third rounded corner; 2. GND line. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] As described in the background technology, the MIPI routing of mobile phone display modules is an important line for the prior art, which generally includes DATA lines and CLK lines. In order to reduce the differential impedance difference between each group of lines, it is generally required that the routing lengths between each group of lines remain close, such as the length difference between the DATA differential line and the CLK differential line pair must be <2.0mm. However, due to the influence of FPC shape, other lines, placement of electronic components, etc., after the DATA line and CLK line are parallelly routed, there will always be a large length difference between each group of lines, affecting the stability of the MIPI routing.

[0031] In order to solve this technical problem, the utility model provides a routing structure for a display module MIPI line, comprising a plurality of DATA differential line pairs 1 and a plurality of GND lines 2, wherein the DATA differential line pairs 1 and the GND lines 2 are arranged alternately, and the DATA differential line pairs 1 comprise a first DATA differential line 11 and a second DATA differential line 12, wherein the first DATA differential line 11 and the second DATA differential line 12 both have a bending structure S. The bending structure S is in a concave shape S1. A first rounded corner S11 is provided at the corner of the concave shape S1.

[0032] Through the above structural design, when the line length of the first DATA differential line 11 and the second DATA differential line 12 is shorter than the other lines, the line length of the first DATA differential line 11 and the second DATA differential line 12 can be increased through the concave shape S1, and the line length of the first DATA differential line 11 and the second DATA differential line 12 is made close to that of other groups of lines. This winding method has a compact wiring structure, does not add too much extra horizontal space, and does not occupy the wiring space of other lines, effectively reducing the differential impedance difference between each group of lines, thereby improving the stability and reliability of the display module MIPI line. Since the first fillet S11 is provided at the corner of the concave shape S1, static electricity can be effectively avoided.

[0033] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] Example 1

[0037] As shown in Figures 1 and 2, the routing structure for the display module MIPI line includes several DATA differential line pairs 1 and several GND lines 2. The DATA differential line pairs 1 and the GND lines 2 are alternately arranged. The DATA differential line pair 1 includes a first DATA differential line 11 and a second DATA differential line 12. The first DATA differential line 11 and the second DATA differential line 12 both have a bending structure S.

[0038] It should be noted that the line width of the first DATA differential line 11 and the second DATA differential line 12 are both 0.05 mm, and the line distance between the first DATA differential line 11 and the second DATA differential line 12 is 0.1 mm.

[0039] In addition, the line width of the GND line 2 is 0.2 mm.

[0040] It should be noted that the bending structure S is in a concave shape S1. A first rounded corner S11 is provided at a corner of the concave shape S1.

[0041] The working mode of this embodiment is described below.

[0042] When the line length of the first DATA differential line 11 and the second DATA differential line 12 is shorter than the other lines, the line length of the first DATA differential line 11 and the second DATA differential line 12 can be increased by the concave shape S1, so that the line length of the first DATA differential line 11 and the second DATA differential line 12 is close to that of other groups of lines. This winding method has a compact wiring structure, does not add too much horizontal space, and does not occupy the wiring space of other lines, effectively reducing the differential impedance difference between each group of lines, thereby improving the stability and reliability of the display module MIPI line. Since the first fillet S11 is provided at the corner of the concave shape S1, static electricity can be effectively avoided.

[0043] Example 2

[0044] like Figure 3 and Figure 4 As shown, the routing structure for the MIPI line of the display module provided in Example 1 is further optimized. Specifically, the bending structure S is a triangle S2.

[0045] It should be noted that a second rounded corner S21 is provided at the corner of the triangle S2.

[0046] The working mode of this embodiment is described below.

[0047] By using the bending structure S formed by the triangle S2, the line length of the first DATA differential line 11 and the second DATA differential line 12 can be made close to that of other groups of lines, effectively reducing the differential impedance difference between the groups of lines, thereby improving the stability and reliability of the display module MIPI line. Since the second fillet S21 is provided at the corner of the triangle S2, static electricity can be effectively avoided.

[0048] Example 3

[0049] like Figure 5 and Figure 6 As shown, the routing structure for the MIPI line of the display module provided in Embodiment 1 or 2 is further optimized. Specifically, the bending structure S is in a trapezoidal shape S3.

[0050] It should be noted that a third rounded corner S31 is provided at the corner of the trapezoid S3.

[0051] The working mode of this embodiment is described below.

[0052] By using the bent structure S formed by the trapezoid S3, the line length of the first DATA differential line 11 and the second DATA differential line 12 can be made close to that of other groups of lines, effectively reducing the differential impedance difference between the groups of lines, thereby improving the stability and reliability of the display module MIPI line. Since the third fillet S31 is provided at the corner of the trapezoid S3, static electricity can be effectively avoided.

[0053] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A wiring structure for a display module MIPI line, characterized in that: The wiring structure for the display module MIPI line comprises a plurality of DATA differential line pairs (1) and a plurality of GND lines (2), wherein the DATA differential line pairs (1) and the GND lines (2) are arranged in an alternating manner, wherein the DATA differential line pairs (1) comprise a first DATA differential line (11) and a second DATA differential line (12), and the first DATA differential line (11) and the second DATA differential line (12) both have a bending structure (S).

2. The wiring structure for the MIPI line of the display module according to claim 1, characterized in that: The line widths of the first DATA differential line (11) and the second DATA differential line (12) are both 0.05 millimeters.

3. The wiring structure for the MIPI line of the display module according to claim 1, characterized in that: The line distance between the first DATA differential line (11) and the second DATA differential line (12) is 0.1 mm.

4. The wiring structure for the MIPI line of the display module according to claim 1, characterized in that: The GND line (2) has a line width of 0.2 mm.

5. The wiring structure for the MIPI line of the display module according to claim 1, characterized in that: The bending structure (S) is in a concave shape (S1).

6. The wiring structure for the MIPI line of the display module according to claim 5, characterized in that: The corner of the concave shape (S1) is provided with a first rounded corner (S11).

7. The wiring structure for the MIPI line of the display module according to claim 1, characterized in that: The bending structure (S) is in the shape of a triangle (S2).

8. The wiring structure for the MIPI line of the display module according to claim 7, characterized in that: The corner of the triangle (S2) is provided with a second rounded corner (S21).

9. The wiring structure for the MIPI line of the display module according to claim 1, characterized in that: The bending structure (S) is trapezoidal (S3).

10. The wiring structure for the MIPI line of the display module according to claim 9, characterized in that: A third rounded corner (S31) is provided at the corner of the trapezoid (S3).

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