Wearable LCM liquid crystal display screen FPC plug-in golden finger optimization structure

Abstract

The utility model discloses a wearable LCM (Liquid Crystal Module) liquid crystal display screen FPC (Flexible Printed Circuit) plug-in golden finger optimization structure, which comprises a plurality of first golden fingers which form a first row of golden fingers; a plurality of second golden fingers form a second row of golden fingers; the first row of golden fingers and the second row of golden fingers are arranged at intervals; and arc-shaped chamfers are arranged at the edges and corners of the first golden finger. The utility model has the advantages of novel structure and strong practicability. According to the utility model, the adjacent peripheries of the two rows of common golden fingers are designed to be arc-shaped chamfers, the etching short-circuit risk is reduced, and a small extension part of the upper row of golden fingers is flush with the lower row of golden fingers, so that the whole surface of golden fingers is more uniform, and the breaking risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC design of wearable LCM liquid crystal display screens, and more specifically to an optimized structure of gold finger plugging of FPC of wearable LCM liquid crystal display screens. Background Art

[0002] With the rapid development of the electronics industry, the structure of wearable LCD products is becoming more and more compact, and there are more and more double-row PIN FPCs. The conventional FPC gold finger structure is as follows Figure 1 As shown, it can be seen that the double rows of gold fingers are arranged in sections, and the corners of each gold finger are obtuse, which has the following disadvantages:

[0003] Disadvantage 1: The gold finger is not smooth enough around, and the molding etching is prone to short circuit; especially for wearable LCD display products with compact structure, molding etching is more prone to short circuit problems, thus affecting product quality.

[0004] Disadvantage 2: The intersection of two rows of PINs is easy to break. Because the two rows of gold fingers are of different lengths, when they are arranged at intervals, in addition to the intersection part, the excess part of the longer row of gold fingers is easy to break, shortening the actual service life of the product.

[0005] In general, the FPC gold fingers of the prior art will affect the display performance of wearable LCD screens and reduce the yield rate in the production process. Utility Model Content

[0006] The purpose of the utility model is to provide an optimized structure for the FPC plug-in gold finger of a wearable LCM liquid crystal display screen, in order to solve the technical problems existing in the background technology.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An optimized structure for FPC plug-in gold fingers of wearable LCM liquid crystal display screens, comprising:

[0009] A first golden finger, wherein a plurality of the first golden fingers form a first row of golden fingers;

[0010] A second golden finger, wherein a plurality of the second golden fingers form a second row of golden fingers;

[0011] The first row of gold fingers and the second row of gold fingers are set at intervals;

[0012] The corners on the first gold finger are all provided with arc-shaped chamfers.

[0013] In some embodiments, the corners on the second gold finger are all provided with arc-shaped chamfers.

[0014] In some embodiments, the lengths of the first row of gold fingers and the second row of gold fingers are the same, and both ends of the first row of gold fingers and the second row of gold fingers are flush.

[0015] In some embodiments, the middle of the first golden finger has a protruding portion, so that its width is greater than both ends of the first golden finger, and the middle of the second golden finger has a concave portion, so that its width is smaller than both ends of the second golden finger.

[0016] In some embodiments, the middle protruding portion of the first golden finger is adapted to the middle concave portion of the second golden finger.

[0017] In some embodiments, in the second row of gold fingers, the width of the lower end of the second gold finger is equal to the width of the middle protruding portion of the first gold finger in the first row of gold fingers.

[0018] In some embodiments, the widths of the widest parts of the adjacent first and second golden fingers are both 0.3 mm, that is, the width of the protruding part in the middle of the first golden finger and the width of the lower end of the second golden finger are both 0.3 mm.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model has a novel structure and strong practicality. The utility model makes arc-shaped chamfers around the adjacent four sides of the two commonly used rows of gold fingers to reduce the risk of etching short circuits, and extends a small part of the traditional upper row of gold fingers to be flush with the lower row, so that the entire surface of the gold fingers is more evenly distributed and the risk of breakage is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the FPC plug-in gold finger in the prior art;

[0022] Figure 2 The present invention is a schematic diagram of an optimized structure of an FPC plug-in gold finger of a wearable LCM liquid crystal display screen according to an embodiment. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0024] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0028] The following will be combined Figure 2 , a wearable LCM liquid crystal display FPC plug-in gold finger optimization structure involved in the embodiment of the present application is described in detail. It is worth noting that the following embodiments are only used to explain the present application and do not constitute a limitation of the present application.

[0029] Embodiment 1:

[0030] like Figure 2As shown, an optimized structure of gold finger plugging for wearable LCM liquid crystal display FPC includes: a first gold finger 2, a second gold finger 1, a plurality of the first gold fingers form a first row of gold fingers; a plurality of the second gold fingers form a second row of gold fingers; the first row of gold fingers and the second row of gold fingers are arranged at intervals; the edges and corners on the first gold fingers are provided with arc chamfers, and the edges and corners on the second gold fingers are provided with arc chamfers. This application makes the two commonly used rows of gold fingers, i.e. the first row of gold fingers and the second row of gold fingers, have arc chamfers at the adjacent four bends to reduce the risk of etching short circuits, and the upper row of gold fingers are slightly extended to be flush with the lower row, i.e. the length of the first row of gold fingers is the same as that of the second row of gold fingers, and the two ends of the first row of gold fingers are flush with those of the second row of gold fingers. This makes the distribution of the entire surface of gold fingers more even and reduces the risk of breakage.

[0031] In some embodiments, the middle of the first gold finger has a protruding portion, making its width greater than the two ends of the first gold finger, and the middle of the second gold finger has a concave portion, making its width smaller than the two ends of the second gold finger. The protruding portion in the middle of the first gold finger is adapted to the concave portion in the middle of the second gold finger. Through the arrangement of this structure, the two ends of the superimposed first row of gold fingers are flush with the two ends of the second row of gold fingers, making it possible to design arc-shaped chamfers at the edges and corners of the gold fingers.

[0032] In order to improve the stability of the connection between the gold finger and the matching connector, in this embodiment, the width of the lower end of the second gold finger in the second row of gold fingers (i.e., the end close to the matching connector) is set to be equal to the width of the middle protruding part of the first gold finger in the first row of gold fingers. At the same time, the width of the widest part of the adjacent first gold finger and the second gold finger is designed to be 0.3mm, that is, the width of the middle protruding part of the first gold finger and the width of the lower end of the second gold finger are both 0.3mm. With such a design, under a limited width, it can ensure that there are a preset number of PINs, and ensure that during the plugging process, the first row of gold fingers and the second row of gold fingers can provide stable contact with the contact points on the connector. Since the contact points on the connector are arranged one after the other, they are just connected with the lower end of the second gold finger of the present application and the middle of the first gold finger. The lower end of the second gold finger and the middle of the first gold finger of the present application are both relatively wide positions on the gold finger, so the stability of the connection can be improved.

[0033] In some embodiments, see Figure 2 This application optimizes the design of the gold finger to make the PIN smoother, reduce the risk of short circuit, evenly distribute the gold fingers over the entire surface, reduce the risk of PIN breakage, and improve the reliability of the connection with the connector, thereby improving the reliability of the product.

[0034] The above description is only a preferred embodiment of the present invention and is 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. An optimized structure for the FPC plug-in gold finger of a wearable LCM liquid crystal display, characterized in that: include: A first golden finger, wherein a plurality of the first golden fingers form a first row of golden fingers; A second golden finger, wherein a plurality of the second golden fingers form a second row of golden fingers; The first row of gold fingers and the second row of gold fingers are set at intervals; The corners on the first gold finger are all provided with arc-shaped chamfers.

2. According to claim 1, the optimized structure of the FPC plug-in gold finger of the wearable LCM liquid crystal display screen is characterized in that: The corners on the second gold finger are all provided with arc-shaped chamfers.

3. According to claim 1, the optimized structure of the FPC plug-in gold finger of the wearable LCM liquid crystal display screen is characterized in that: The length of the first row of gold fingers is the same as that of the second row of gold fingers, and both ends of the first row of gold fingers are flush with those of the second row of gold fingers.

4. According to claim 1, the optimized structure of the FPC plug-in gold finger of the wearable LCM liquid crystal display screen is characterized in that: The middle of the first golden finger has a protruding portion, so that its width is greater than the two ends of the first golden finger, and the middle of the second golden finger has a concave portion, so that its width is smaller than the two ends of the second golden finger.

5. According to claim 4, the optimized structure of the FPC plug-in gold finger of the wearable LCM liquid crystal display screen is characterized in that: The middle convex part of the first golden finger is adapted to the middle concave part of the second golden finger.

6. According to claim 4, the optimized structure of the FPC plug-in gold finger of the wearable LCM liquid crystal display screen is characterized in that: In the second row of gold fingers, the width of the lower end of the second gold finger is equal to the width of the middle protruding portion of the first gold finger in the first row of gold fingers.

7. According to claim 4, the optimized structure of the FPC plug-in gold finger of the wearable LCM liquid crystal display screen is characterized in that: The widths of the widest parts of the adjacent first and second golden fingers are both 0.3 mm, that is, the width of the protruding part in the middle of the first golden finger and the width of the lower end of the second golden finger are both 0.3 mm.

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