Flexible printed circuit (FPC) light-transmitting structure

Abstract

The utility model relates to an FPC light-transmitting structure. The FPC light-transmitting structure comprises a light-sensing chip and a light-sensing FPC, the light-sensing chip is provided with a light-sensing area, the light-sensing chip is arranged on the light-sensing FPC, the light-sensing FPC is provided with a first arc-shaped edge and a second arc-shaped edge, the first arc-shaped edge and the second arc-shaped edge are connected to form a light-transmitting hole, and the light-transmitting hole is communicated with the light-sensing area. According to the scheme provided by the invention, the light transmittance of the hole site on the photosensitive FPC can be ensured to be more than 80%.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC boards, in particular to an FPC light-transmitting structure. Background Art

[0002] At present, photosensitive chips are usually installed on photosensitive FPCs in the form of patches, and corresponding holes are opened on the photosensitive FPCs to improve light transmittance.

[0003] However, in the related art, the holes on the photosensitive FPC are circular holes and have been opened before the photosensitive chip is mounted. Due to the tolerance of the mounting equipment, the position of the photosensitive FPC is not uniform when the photosensitive chip is mounted, which may result in a transmittance of less than 80%. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an FPC light-transmitting structure, which can ensure that the light transmittance of the holes on the photosensitive FPC is above 80%.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The first aspect of the present application provides an FPC light-transmitting structure, comprising: a photosensitive chip, on which a photosensitive area is arranged; a photosensitive FPC, on which the photosensitive chip is arranged, the photosensitive FPC having a first arc-shaped edge and a second arc-shaped edge, the first arc-shaped edge and the second arc-shaped edge are connected to form a light-transmitting hole, and the light-transmitting hole is connected to the photosensitive area.

[0007] It also includes a first protruding portion, which is arranged on the first arc-shaped edge.

[0008] It also includes a second protruding portion, which is arranged on the first arc-shaped edge.

[0009] It also includes a first pin, which is arranged on the photosensitive chip.

[0010] It also includes a second pin, which is arranged on the photosensitive chip.

[0011] A gap is arranged between the light sensing area and the second pin.

[0012] The width of the gap ranges from 0.078 mm to 0.079 mm.

[0013] The first pin and the second pin are flush with each other.

[0014] The light sensing area has a rectangular cross-sectional structure.

[0015] The area of ​​the light-transmitting hole is larger than the area of ​​the light-sensitive area.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The first arc edge and the second arc edge of the present application are connected to form a light-transmitting hole, and the area of ​​the light-transmitting hole is significantly increased compared to the traditional circular light-transmitting hole. In addition, since the patch equipment has a tolerance of about 2mm, no matter the position of the photosensitive chip patch deviates in the four directions of up, down, left, and right, the light transmittance of the light-transmitting hole can be guaranteed to be above 80%. 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 This is a schematic structural diagram of an FPC light-transmitting structure in one embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of another implementation of the FPC light-transmitting structure in one embodiment of the utility model. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0022] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] 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, or a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] The holes on the photosensitive FPC are circular holes and have been opened before the photosensitive chip is mounted. Due to the tolerance of the mounting equipment, the position of the photosensitive FPC is not uniform when the photosensitive chip is mounted, which may result in a transmittance of less than 80%.

[0025] In view of the above problems, an embodiment of the present application provides an FPC light-transmitting structure, which can ensure that the light transmittance of the holes on the photosensitive FPC is above 80%.

[0026] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0027] See also Figure 1 and Figure 2 A FPC light-transmitting structure includes: a photosensitive chip 100 and a photosensitive FPC 200, wherein a photosensitive area 110 is arranged on the photosensitive chip 100; the photosensitive chip 100 is arranged on the photosensitive FPC 200, and the photosensitive FPC 200 has a first arc-shaped edge 210 and a second arc-shaped edge 220, and the first arc-shaped edge 210 and the second arc-shaped edge 220 are connected to form a light-transmitting hole 230, and the light-transmitting hole 230 is connected to the photosensitive area 110.

[0028] It should be noted that the photosensitive area 110 has a rectangular cross-sectional structure, and the first arc-shaped edge 210 and the second arc-shaped edge 220 are connected to form a light-transmitting hole 230. Compared with the traditional circular light-transmitting hole, the area of ​​the light-transmitting hole 230 is significantly increased. In addition, since the patch equipment has a tolerance of about 2mm, no matter the position of the photosensitive chip 100 is deviated in the four directions of up, down, left, and right, the light transmittance of the light-transmitting hole 230 can be guaranteed to be above 80%.

[0029] It should also be noted that Figure 2 This is the case where the light transmittance is 93%.

[0030] See also Figure 1 In one embodiment, the first protrusion 300 is further included, and the first protrusion 300 is disposed on the first arc-shaped edge 210. Specifically, the second protrusion 400 is further included, and the second protrusion 400 is disposed on the first arc-shaped edge 210.

[0031] It should be noted that the arrangement of the first protruding portion 300 and the second protruding portion 400 makes the first arc-shaped edge 210 wavy, thereby increasing the light-transmitting area.

[0032] See also Figure 1 In one embodiment, the first pin 500 is further included, and the first pin 500 is disposed on the photosensitive chip 100. Specifically, the second pin 600 is further included, and the second pin 600 is disposed on the photosensitive chip 100. Specifically, a gap is provided between the photosensitive area 110 and the second pin 600. Specifically, the width of the gap ranges from 0.078 mm to 0.079 mm. Specifically, the first pin 500 and the second pin 600 are flush with each other.

[0033] It should be noted that the first pin 500 is usually not used, so the first pin 500 can be connected to the light-transmitting hole 230. The second pin 600 requires solder, so the light-transmitting hole 230 cannot be connected to the second pin 600. In addition, the second pin 600 also plays a positioning role when the patch equipment is patching.

[0034] See also Figure 1 In one embodiment, in order to ensure light transmittance, the area of ​​the light-transmitting hole 230 is larger than the area of ​​the photosensitive area 110 .

[0035] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the various embodiments have their own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0036] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A FPC light-transmitting structure, characterized in that: include: A photosensitive chip, wherein a photosensitive area is provided on the photosensitive chip; Photosensitive FPC, the photosensitive chip is arranged on the photosensitive FPC, the photosensitive FPC has a first arc-shaped edge and a second arc-shaped edge, the first arc-shaped edge and the second arc-shaped edge are connected to form a light-transmitting hole, and the light-transmitting hole is connected to the photosensitive area.

2. The FPC light-transmitting structure according to claim 1, characterized in that: It also includes a first protruding portion, which is arranged on the first arc-shaped edge.

3. The FPC light-transmitting structure according to claim 1, characterized in that: It also includes a second protruding portion, which is arranged on the first arc-shaped edge.

4. The FPC light-transmitting structure according to claim 1, characterized in that: It also includes a first pin, which is arranged on the photosensitive chip.

5. The FPC light-transmitting structure according to claim 4, characterized in that: It also includes a second pin, which is arranged on the photosensitive chip.

6. The FPC light-transmitting structure according to claim 5, characterized in that: A gap is arranged between the light sensing area and the second pin.

7. The FPC light-transmitting structure according to claim 6, characterized in that: The width of the gap ranges from 0.078 mm to 0.079 mm.

8. The FPC light-transmitting structure according to claim 6, characterized in that: The first pin and the second pin are flush with each other.

9. The FPC light-transmitting structure according to claim 1, characterized in that: The light sensing area has a rectangular cross-sectional structure.

10. The FPC light-transmitting structure according to claim 1, characterized in that: The area of ​​the light-transmitting hole is larger than the area of ​​the light-sensitive area.

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