WO2019062610A1

WO2019062610A1 - Camera module for reducing stray light and photosensitive assembly thereof, and electronic device

Info

Publication number: WO2019062610A1
Application number: PCT/CN2018/106352
Authority: WO
Inventors: 赵波杰; 郭楠; 梅哲文; 田中武彦
Original assignee: 宁波舜宇光电信息有限公司
Priority date: 2017-09-28
Filing date: 2018-09-19
Publication date: 2019-04-04
Also published as: TWI706180B; TW201915534A

Abstract

A camera module (100) for reducing stray light, a photosensitive assembly (10) thereof, and an electronic device (300). The photosensitive assembly (10) comprising: a circuit board (11), a photosensitive element (13), a molded base (12), and a filter element (14). The photosensitive element (13) is operatively connected to the circuit board (11). The molded base (12) is integrally combined with the circuit board (11) and the photosensitive element (13) and is provided with a light window (122). The filter element (14) comprises a filter element body (141), and a light shielding layer (142) disposed on a bottom side of the filter element body (141). The light shielding layer (142) forms a light path (1420) for guiding light to enter the light window (122) and then to reach the photosensitive element (13) and reduces the amount of stray light reaching the photosensitive element (13).

Description

Camera module for reducing stray light, photosensitive member and electronic device thereof

Technical field

The invention relates to the field of camera modules, and further relates to a photosensitive component manufactured by a molding process and a camera module having the photosensitive component capable of reducing stray light.

Background technique

The camera module is one of the indispensable components of the smart electronic device, such as but not limited to a smart phone, a camera, a computer device, a wearable device, and the like. With the continuous development and popularization of various smart devices, the requirements for camera modules are getting higher and higher.

The camera module of the conventional COB process package, as shown in FIG. 1A, includes a circuit board 101, a sensor chip 102, a bracket 103, a filter 104, and a lens assembly 105. A series of electronic components 106 are mounted on the circuit board 101. The brackets 103 are mounted on the circuit board 101 and are placed on the outer side of the electronic components 106 so as to avoid the electronic components on the bottom side of the bracket 103. The avoidance space 107 of 105. As shown in FIG. 1A, it has a predetermined effect of removing stray light, for example, when the stray light M1 reaches the wiring board 101, it is reflected into the escape space 107 so as not to be reflected to the filter 104, and is filtered. The bottom surface of the light sheet 104 is reflected to reach the photosensitive chip 102 to form stray light.

The molding and packaging technology of the camera module is a packaging technology that has been developed on the basis of the traditional COB package. As shown in FIG. 1B , the camera module is packaged by using an existing integrated package technology, and includes a circuit board 201 , a light sensor chip 202 , a package portion 203 , a filter 204 , and a lens assembly 205 . In this configuration, the package portion 203 is packaged on the circuit board 201 and the photosensitive chip 202 in an integrated package to form an integrated package assembly, and the package portion 203 covers a series of electronic components of the circuit board 201. 206 and a series of leads 207 electrically connecting the photosensitive chip 202 and the circuit board 201, so that the length and width dimensions and thickness dimensions of the camera module can be reduced, assembly tolerances can be reduced, and the lens assembly 205 above the integrated package assembly can It is installed flat and solves the problem that the dust attached to the electronic component 206 affects the image quality of the camera module.

However, as shown in FIG. 1B, since the package portion 203 integrally extends from the photosensitive chip 202 and embeds the electronic component 206 and the lead 207, the escaping space 107 in the conventional COB is not required, but the integration The packaging technology still has a certain degree of stray light, that is, the inner surface 2031 of the package portion 203 has a predetermined reflection effect on the light, which may cause the light to be reflected to reach the photosensitive chip 202 to generate stray light. More specifically, as shown in the figure, a portion of the light ray M2 reaches the inner surface 2031 of the package portion 203 and is reflected to reach the bottom surface 2042 of the filter 204, thereby being further reflected to reach the photosensitive chip 202. Forming stray light. In addition, in order to reduce the stray light, a common method is to provide a light shielding film 2041 on the top side of the filter 204, that is, the light shielding film 2041 is formed on the side of the filter 204 facing the lens assembly 205. A light transmitting region is formed in the middle of the filter 204, and part of the stray light M3 can be blocked by the light shielding layer 2041 to prevent it from entering the package portion 201. However, the light shielding film 2041 cannot solve the stray light generated by the light M2.

In addition, in order to facilitate the release of the film, the inner surface 2031 of the package portion 203 is generally formed to extend obliquely from the photosensitive chip 202, which causes the area of the top surface of the package portion 203 to be reduced, and the package portion 203 The top side requires the upper optics for mounting the camera module, such as the lens assembly 205 described above, or an additional mirror mount. However, the smaller surface top surface of the encapsulation portion 203 may not provide sufficient mounting surface for the upper optics of the camera module, such that the upper optics may not be securely mounted.

Summary of the invention

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive member thereof, wherein a light shielding layer is disposed on a bottom side of a filter element body of a filter element of the photosensitive module of the camera module Thereby, the central region of the filter element body forms an effective light transmitting region to reduce stray light reaching the inside of a molded base.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive member thereof, wherein at least a part of light generated by reflection after being incident on an inner surface of the molded base can be absorbed by the light shielding layer Avoid being reflected by the filter element to reach a photosensitive element to form stray light.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive member thereof, wherein the light shielding layer is located between a filter element body of the filter element and the molding base, thereby reducing Light rays are directed toward the inner surface of the molded base to effectively avoid stray light.

It is an object of the present invention to provide a camera module for reducing stray light and a photosensitive assembly thereof, wherein in some embodiments, the filter element is mounted to the molded base, wherein the molding base a peripheral portion of the light window of the seat, a light blocking groove formed between the light shielding layer and the inner surface of the molding base, and at least a portion of stray light entering the light suppression groove is used by the molding base The inner surface is reflected and absorbed by the light shielding layer, thereby effectively suppressing stray light from being emitted from the light suppression groove.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive member thereof. In some embodiments, the photosensitive member further includes a filter element holder, and the filter element is assembled in a filter. a top side groove of the component holder, the filter element holder being assembled to the molding base, wherein the light shielding layer, the filter element holder is at an outer peripheral portion of the light window of the molding base Forming a light suppression groove between the inner surface and the inner surface of the molding base, at least a portion of the stray light entering the light suppression groove being reflected by the inner surface of the molding base and being subjected to The light shielding layer absorbs, thereby effectively suppressing stray light from being emitted from the light suppression groove.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive member thereof. In some embodiments, the photosensitive member further includes a filter element holder, and the filter element is assembled in a filter. a bottom side groove of the component holder, the filter element holder being assembled to the molding base, wherein the light shielding layer and the molding base are at an outer peripheral portion of the light window of the molding base Forming a light suppression groove between the inner surfaces, at least a portion of the stray light entering the light suppression groove is reflected by the inner surface of the molding base and absorbed by the light shielding layer, thereby effectively suppressing impurities Astigmatism is emitted from the light-suppressing groove.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive member thereof, wherein in some embodiments, the filter element further includes a top side shading disposed on a top surface of the filter element body. The layers, such that both sides of the filter element body have a light blocking and light absorbing structure, thereby further enhancing the effect of reducing stray light reaching the photosensitive element.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive member thereof, wherein the light shielding layer is a black absorbing material capable of absorbing most of the light energy, and a very small portion of the light can be reflected. So that it can effectively absorb stray light.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive member thereof, wherein in some embodiments, the filter element is assembled in the bottom side groove of the filter element holder The position of a bottom side lens of the lens can be moved downward, thereby reducing the back focus of the camera module, and further reducing the height of the camera module.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive assembly thereof, wherein in some embodiments, the molded base includes a photosensitive element joint and a top side extension integrally extending. The inner surface has different extending angles, wherein the top side extending portion and the optical axis have a smaller angle, thereby increasing the area of the top surface of the top side extending portion, thereby being above the camera module The lens or filter element holder or lens assembly provides a larger area of mounting surface for securely mounting the lens, the filter element holder or the lens assembly.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive member thereof, wherein in some embodiments, wherein the top side extension has a small angle with the optical axis, thereby being capable of reducing The area of the filter element.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive member thereof, wherein in some embodiments, the light shielding layer reduces light incident on an inner surface of the top side extension, thereby preventing The inner surface incident on the top side extension is reflected to reach the photosensitive element to form stray light and affect the imaging quality of the camera module.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive assembly thereof, wherein in some embodiments, an angle between the top side extension and the optical axis is smaller than the photosensitive element joint portion and An angle between the optical axes to prevent a window forming portion of a molding die from being pressed against the connecting line connecting the photosensitive member and the circuit board in the molding process, causing damage to the connecting wire.

An object of the present invention is to provide a camera module for reducing stray light and a photosensitive member thereof, wherein in some embodiments, the photosensitive element joint portion and the top side extension portion cooperate with each other, and the photosensitive element joint portion The structure facilitates demolding and reduces stray light, the top side extension is used to increase the area of the top surface of the molded base and the top side extension such a structure to avoid the molding process The cable is crushed by the indenter.

In order to achieve the above at least one object of the invention, the present invention provides a photosensitive assembly of a camera module, comprising:

a circuit board;

a photosensitive element operatively coupled to the circuit board;

a molding base integrally bonded to the circuit board and the photosensitive member and forming a light window; and

a filter element, the filter element comprising a filter element body and a light shielding layer disposed on a bottom side of the filter element body, the light shielding layer forming a light path for allowing light to enter the light window And the stray light reaching the photosensitive element is reduced.

According to another aspect of the present invention, the present invention further provides a camera module, including:

a shot

a circuit board;

a photosensitive element operatively coupled to the circuit board;

a filter element disposed between the lens and the photosensitive element, and the filter element includes a filter element body and a light shielding layer disposed on a bottom side of the filter element body, the light shielding layer forming A light path for directing light into the light window and reducing stray light reaching the photosensitive element.

According to another aspect of the present invention, the present invention also provides an electronic device comprising one or more of the camera modules described above. The electronic devices include, but are not limited to, cell phones, computers, televisions, smart loadable devices, vehicles, cameras, and monitoring devices.

DRAWINGS

FIG. 1A is a schematic structural view of a camera module of a conventional COB process.

FIG. 1B is a schematic structural view of a camera module formed by a conventional integrated packaging process.

2 is a perspective exploded view of a camera module in accordance with a first preferred embodiment of the present invention.

Figure 3A is a cross-sectional view of the camera module of the first preferred embodiment of the present invention taken along line A-A of Figure 2;

3B is a schematic view showing the principle of reducing stray light of the photosensitive member of the camera module according to the first preferred embodiment of the present invention.

4A is a cross-sectional view of a camera module in accordance with a modified embodiment of the first preferred embodiment of the present invention.

4B is a schematic view showing the principle of reducing stray light of the photosensitive member of the camera module according to a modified embodiment of the first preferred embodiment of the present invention.

FIG. 5A is a schematic structural view of a camera module according to a second preferred embodiment of the present invention.

Fig. 5B is a schematic enlarged view of the structure at B in Fig. 5A.

6A is a schematic view showing that the light-shielding layer on the bottom side of the photosensitive member of the camera module according to the second preferred embodiment of the present invention can more effectively reduce the stray light reflected to the photosensitive member with respect to the light-shielding layer on the top side of FIG. 6B. .

Fig. 6B is a schematic view showing the optical path of the light shielding layer on the top side of the filter element of the photosensitive member.

Fig. 7A is a cross-sectional view showing a state in which a molten molding material is pushed into a base forming guide groove in a molding die in a molding process according to the above second preferred embodiment of the present invention.

Fig. 7B is a cross-sectional view showing the state in which the molten molding material is filled in the base molding guide groove in the above second preferred embodiment of the present invention.

Figure 7C is a cross-sectional view showing the formation of a molded base by performing a demolding step in accordance with the above second preferred embodiment of the present invention.

Fig. 8A is a schematic view showing that a light-shielding layer is attached to both sides of a photosensitive member according to a modified embodiment of the second preferred embodiment of the present invention to effectively reduce stray light.

Figure 8B is a cross-sectional view showing a camera module according to another modified embodiment of the above second preferred embodiment of the present invention.

Figure 9 is a cross-sectional view showing a camera module according to another modified embodiment of the above second preferred embodiment of the present invention.

Figure 10 is a cross-sectional view showing a camera module according to another modified embodiment of the second preferred embodiment of the present invention.

Figure 11 is a perspective exploded view showing a camera module in accordance with a third preferred embodiment of the present invention.

Figure 12A is a cross-sectional view of the camera module in accordance with the above-described third preferred embodiment of the present invention taken along line C-C of Figure 11;

Figure 12B is an enlarged schematic view of the portion D in Figure 12A.

FIG. 13A is a schematic view showing that the light-shielding layer on the bottom side of the photosensitive member of the camera module according to the above-described third preferred embodiment of the present invention can more effectively reduce the stray light reflected to the photosensitive member with respect to the light-shielding layer on the top side of FIG. 13B. .

Fig. 13B is a schematic view showing the optical path of the light shielding layer on the top side of the filter element of the photosensitive member.

Figure 14A is a cross-sectional view of a camera module in accordance with a variant embodiment of the above third preferred embodiment of the present invention.

Figure 14B is a cross-sectional view of a camera module in accordance with another modified embodiment of the above third preferred embodiment of the present invention.

Figure 15 is a perspective exploded view of a camera module in accordance with a fourth preferred embodiment of the present invention.

Figure 16 is a cross-sectional view of the image pickup module according to the above-described fourth preferred embodiment of the present invention taken along the line E-E in Figure 15 .

FIG. 17A is a schematic view showing that the light-shielding layer on the bottom side of the photosensitive member of the camera module according to the fourth preferred embodiment of the present invention can more effectively reduce the stray light reflected to the photosensitive member with respect to the light-shielding layer on the top side of FIG. 17B. .

Fig. 17B is a schematic view showing the optical path of the light shielding layer on the top side of the filter element of the photosensitive member.

Figure 18 is a cross-sectional view showing a camera module according to a modified embodiment of the fourth preferred embodiment of the present invention.

Figure 19 is a cross-sectional view showing a camera module according to another modified embodiment of the fourth preferred embodiment of the present invention.

20 is a schematic structural diagram of the above camera module applied to an intelligent electronic device according to the present invention.

Detailed ways

The following description is presented to disclose the invention to enable those skilled in the art to practice the invention. The preferred embodiments in the following description are by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention as defined in the following description may be applied to other embodiments, modifications, improvements, equivalents, and other embodiments without departing from the spirit and scope of the invention.

It should be understood by those skilled in the art that in the disclosure of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", " The orientation or positional relationship of the indications of "upright", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is merely for convenience of description of the present invention and The above description of the invention is not to be construed as a limitation of the invention.

It will be understood that the term "a" is understood to mean "at least one" or "one or more", that is, in one embodiment, the number of one element may be one, and in other embodiments, the element The number can be multiple, and the term "a" cannot be construed as limiting the quantity.

2 to 3B are a camera module 100 and a photosensitive member 10 thereof according to a first preferred embodiment of the present invention. The camera module 100 can be applied to various electronic devices 300. As shown in FIG. 20, the electronic device 300 includes a device body 301 and one or more of the camera modules mounted on the device body 301. 100. The electronic device 300 is exemplified by, but not limited to, a smart phone, a wearable device, a computer device, a television, a vehicle, a camera, a monitoring device, etc., and the camera module cooperates with the electronic device to implement an image of a target object. Acquisition and reproduction.

More specifically, the camera module 100 illustrated in the drawings includes the photosensitive member 10 and a lens 30. The photosensitive assembly 10 includes a circuit board 11, a molding base 12, a photosensitive element 13 and a filter element 14. The molding base 12 includes a base body 121 integrally formed on the The circuit board 11 and the photosensitive member 13 form a light window 122 which is a closed space and provides a light path to the photosensitive member 13. The molded base 12 of the present invention is integrally molded on the circuit board 11 and the photosensitive member 13 via a molding process, such as a transfer molding process, so that the molded base 12 can be replaced. The lens holder or the bracket of the conventional camera module does not need to be attached to the circuit board 11 by glue to the lens holder or the bracket in a similar conventional packaging process.

The circuit board 11 may be a hard board, a soft soft, a soft and hard bonded board, a ceramic substrate, or the like. In this embodiment, the circuit board 11 is a soft and hard bonding board, and includes a substrate 111 and a plurality of electronic components 112 formed on the substrate 111, such as by an SMT process. The electronic component 112 includes It is not limited to resistors, capacitors, drive devices, and the like. In this embodiment of the invention, the molded base 12 is integrally wrapped around the electronic component 112, thereby preventing dust and debris from adhering to the electronic component 112 in a similar conventional camera module. And the photosensitive member 13 is further contaminated, thereby affecting the imaging effect. It is to be understood that the circuit board 11 may not have the electronic component 112. The electronic component 112 may be mounted on the top surface of the substrate 111 or may be mounted on the bottom surface of the substrate 111. Or may be buried in the substrate 111. When disposed on the top surface of the substrate 111, the electronic component 112 may be disposed around the photosensitive element 13 and located on a plurality of sides of the photosensitive element 13, for example, the electronic component 112 may be disposed at The opposite sides of the pair of photosensitive elements 13 may be on the opposite side of the electronic component 112.

The circuit board 11 and the photosensitive element 13 are operatively connected, as shown in the figure, the surface of the circuit board 11 and the photosensitive element 13 each have an electrical connection element, such as a pad, and the two pass through a group Or a plurality of sets of connecting wires 15 are connected, and the molded base 12 integrally encloses the connecting wires 15.

In this embodiment of the invention, the top side of the molded base 12 forms a flat surface for mounting the filter element 14. The filter element 14 includes a filter element body 141 and a light shielding layer 142, which may be an infrared filter element, located on the top side of the molded base 12, and located at the Between the photosensitive element 13 and the lens 30, infrared light passing through the lens 30 is filtered. The material of the filter element main body 141 may include an IR film (infrared cut film), an AR film (anti-reflection coating film), white glass, blue glass, a resin material, a coated composite material, crystal, or the like. The light shielding layer 142 is located on the bottom side of the filter element body 141 and is located between the filter element body 141 and the molding base 12, and the light shielding layer 142 is a light absorbing material that makes the filter The light element body 141 forms an intermediate effective light-transmissive region 1411 and a peripheral region 1412 through which light rays passing through the lens 30 can pass only to reach the inside of the molded base 12. The light shielding layer 142 is an annular structure, and a window is formed in the middle, that is, the light shielding layer 142 forms a light path 1420 for allowing effective light to enter the light window 122 and then reach the photosensitive element 13 and is reduced. The stray light reaching the photosensitive element 13 is reached.

The photosensitive element 13 has a photosensitive area 131 in the middle and a non-sensitive area 132 around the photosensitive area 131. The light shielding layer 142 has an inner edge 1421 and an outer edge 1422. The distance between the inner edge 1421 of the light shielding layer 142 and the optical axis X is greater than or equal to, or slightly smaller than the distance between the outer edge 1311 of the photosensitive region 131 and the optical axis X. That is, the area of the light path 1420 is greater than or equal to, or slightly smaller than, the area of the photosensitive area 131.

The outer edge 1422 of the light shielding layer 142 is located outside of the inner edge 1241 of the top surface 124 of the molded base 12, i.e., the inner edge 1241 of the top surface 124 of the molded base 12 and A light transmissive region is not formed between the outer edges 1422 of the light shielding layer 142.

That is, with respect to the prior art shown in FIG. 1B, the light shielding layer 142 of the present invention is disposed on the side of the filter element main body 141 adjacent to the photosensitive element 13, unlike in FIG. 1B. The light shielding film 2041 is disposed on the side of the filter 204 facing the lens assembly 205 thereof. That is, the light shielding layer 142 of the present invention is formed at the outer edge of the bottom surface of the filter element main body 141 for blocking stray light from reaching the photosensitive member 13.

More specifically, as shown in FIG. 3B, a part of the stray light L11 reaching the upper surface of the filter element main body 141 of the filter element 14 is reflected by the upper surface of the filter element main body 141 without entering the place. When the light window 122 of the susceptor 12 is molded and refracted into the surrounding area 1412 outside the light-transmitting region 1411 above the light-shielding layer 142, it is absorbed by the light-shielding layer 142 and cannot enter the mold. The light window 122 inside the base 12 is molded to serve the purpose of blocking a portion of stray light.

In this embodiment of the invention, the inner surface of the molded base 12 preferably has a central symmetrical structure having an inclined inner surface 123 extending obliquely upward from the photosensitive member 13 integrally, when another portion of the stray light L12 is worn. When the effective transparent region 1411 of the filter element body 141 is incident on the inner surface 123, it is reflected by the inclined inner surface 123 of the molded base 12 to the light shielding layer 142. It is absorbed by the light shielding layer 142 so as not to be further reflected and reaches the photosensitive element 13, which affects the imaging quality of the imaging module 100.

That is, by arranging the light shielding layer 142 between the molded base 12 and the filter element main body 141, it is possible to effectively face the inclined inner surface of the molded base 12 The stray light absorption of 123 is formed, and in FIG. 1B, the light shielding film 2041 is formed on the top surface of the filter 204, so that the stray light M2 reaching the bottom surface of the filter 204 is reflected to the photosensitive chip 202 to affect the mode. The imaging quality of the group.

Correspondingly, the light shielding layer 142 is adjacent to the inclined inner surface 123 of the molding base 12, and between the two, the outer portion of the light window 122 forms a light suppression groove 1221. The light suppression groove 1221 is a space for suppressing the emission of stray light. More specifically, as shown in FIG. 3B, the stray light L12 enters the light suppression groove 1221, thereby being suppressed from being emitted from the light suppression groove 1221. More specifically, the stray light L12 can only be reflected by the inclined inner surface 123 and absorbed by the light shielding layer 142, so that the optical path of the stray light L12 is held in the light suppression groove 1221, thereby effectively reducing the arrival point. The stray light of the photosensitive element 13 is described.

As shown in FIG. 3B, the inclined inner surface 123 extends downward from the light shielding layer 142, the light shielding layer 142 extends horizontally from the inclined inner surface 123, the light shielding layer 142 and the inclined inner surface. An angle γ is formed between 123, and the angle γ is an acute angle or a right angle, so that light incident on the inclined inner surface 123 is prevented from being reflected toward the photosensitive member 13 to form stray light.

In addition, the light shielding layer 142 is disposed on the bottom surface of the filter element main body 141, and is disposed on the top surface of the filter element main body 141 with respect to the top surface of the filter element main body 141, and can also be directly directed to the molding base 12 The stray light of the inner surface 123.

It can be understood that, in this embodiment of the invention, the lens 30 is assembled to the top surface 124 of the molded base 12 to form a fixed focus camera module. In other embodiments, the lens 30 can be assembled to a lens barrel that is mounted to the top surface 124 of the molded base 12. Alternatively, in other embodiments, the lens 30 can be assembled to a driver that is mounted to the top surface 124 of the molded base 12 such that an autofocus camera module is formed.

The filter element 141 can be attached to the top surface 124 of the molded base 12, such as by glue to the top surface 124 of the molded base 12. The light shielding layer 142 may be formed on the bottom surface of the filter element body 141 in various manners, such as being attached to the bottom surface of the filter element body 141, or the light shielding layer may be formed by a yellow light process or a silk screen process. 142 is formed on a bottom surface of the filter element main body 141.

The light shielding layer 142 may be applied to the bottom surface of the filter element body 141 by photolithography, that is, a conventional yellow light process. Applying the light shielding layer 142 to the bottom surface of the filter element body 141 by a yellow light process, specifically comprising the steps of: cleaning and drying the filter element body 141; on the filter element body 141 Coating the substrate, then spin-coating the photoresist on the filter element main body 141; soft-drying the filter element main body 141; performing alignment exposure on the filter element main body 141; and post-drying the filter element main body 141 Developing the filter element main body 141; hard-drying the filter element main body 141; and etching the filter element main body 141 to form the filter element 14. The photoresist is a black absorbing material, which can absorb most of the light energy incident on the light shielding layer 142, and can absorb more than 95% of the light energy, and can only allow a very small portion of the light to be incident on the light. The light shielding layer 142 can be reflected.

The photoresist used in the yellow light process is a photosensitive material. The photoresist has unique characteristics. Under the action of UV light, it undergoes chemical changes and becomes a substance that is easily soluble in acid or alkali. Applying a photoresist to the substrate, providing a corresponding mask according to the shape required by the product, masking the mask on the photoresist, and then exposing the photoresist so that the photoresist is not covered by the mask A chemical change occurs in the region, and then the portion of the photoresist is dissolved or retained with an acid or a base to form a pattern that is identical or complementary to the shape of the mask. The photoresist used in the present invention is an opaque coating which, in addition to having the photosensitive characteristics of a conventional photoresist, has an opaque property to form the light-shielding layer 142 which absorbs stray light.

The photomask of the present invention may have an annular mask of the same shape as the light shielding layer 142. For example, the photoresist is applied to the bottom surface of the filter element main body 141 during fabrication, and the photomask is covered. Exposure is performed on the photoresist, and after the exposure, a photoresist that undergoes chemical change in the middle is removed, and the light-shielding layer 142 is formed in a region covered by the photomask, and the outer frame edge of the photomask is determined. The position of the outer edge 1422 of the light shielding layer 142 determines the position of the inner edge 1421 of the light shielding layer 142.

In addition, it is worth mentioning that when the yellow light process is employed, the thickness of the light shielding layer 142 is relatively small, for example, 2 μm to 3 μm.

In the screen printing process, the screen layer 142 is applied to the bottom surface of the filter element body 141 by a screen printing process, specifically comprising the steps of: applying a light absorbing ink to the filter element body 141 through a screen printing plate; The filter element 14 is obtained by baking the filter element main body 141 coated with the above-described light absorbing ink. Correspondingly, the ink is a black absorbing opaque material, and can absorb most of the light energy incident on the light shielding layer 142, such as absorbing more than 95% of the light energy, and only allowing a very small portion. Light can be reflected after being incident on the light shielding layer 142. The thickness of the light shielding layer may be 7 μm to 12 μm by the above silk screen process.

As shown in FIG. 4A and FIG. 4B, according to a variant embodiment of the first embodiment of the present invention, the photosensitive module 10 of the camera module 100 includes the circuit board 11, the molding base. a seat 12, the photosensitive element 13 and the filter element 14. Wherein the molded base 12 has a top side recess 125 on its top side for assembling the filter element 14. That is, in this embodiment of the invention, the top surface 124 of the molded base 12 may be a multi-stepped surface, such as illustrated in Figures 4A and 4B, the top surface 124 being divided into a multi-part top surface of the face, such as a first partial top surface 124a and a second partial top surface 124b, the first partial top surface 124a being recessed toward the photosensitive element 13 relative to the second partial top surface 124b, Thus forming the top side groove 125 on the top side of the first portion top surface 124a, the filter element 14 being assembled to the top side groove 125, thereby reducing the filter element 14 and the photosensitive element The distance between the 13 is reduced, and the overall size of the camera module 100 is reduced.

Correspondingly, the outer edge 1422 of the light shielding layer 142 is located outside the inner edge 1241 of the first portion top surface 124a of the molded base 12, ie, the first portion top surface 124a of the molded base 12. A light transmissive region is not formed between the inner edge 1241 and the outer edge 1422 of the light shielding layer 142.

As shown in FIG. 4B, a part of the stray light L21 incident on the upper surface of the filter element main body 141 of the filter element 14 is reflected by the upper surface of the filter element main body 141 without entering the molding. The light window 122 of the susceptor 12, when refracted into the surrounding area 1412 outside the light-transmitting region 1411 above the light-shielding layer 142, is absorbed by the light-shielding layer 142 and cannot enter the molded base. The light window 122 inside 12 serves to block a part of stray light.

In this embodiment of the invention, the molded base 12 has an inner surface 123 extending obliquely upward from the photosensitive element 13 integrally, which includes a multi-part inner surface as shown in the bottom side portion as shown in the drawing The surface 123a and the top side portion inner surface 123b. The bottom side portion inner surface 123a integrally extends obliquely from the photosensitive member 13, the top side portion inner surface 123b integrally extending from the first portion top surface 124a, the top side groove 125 being formed in the The inner side of the second portion inner surface 123b and the top side of the first portion top surface 124a. When another portion of the stray light L22 is incident to the bottom side portion inner surface 123a through the effective light transmitting region 1411 of the filter element body 141, the bottom side of the molded base 12 is A portion of the inner surface 123a is reflected to the light shielding layer 142 to be absorbed by the light shielding layer 142 so as not to be further reflected to reach the photosensitive element 13, affecting the image quality of the image sensor module 100.

That is, by arranging the light shielding layer 142 between the molded base 12 and the filter element main body 141, it is possible to effectively face the bottom side portion of the molded base 12 The stray light of the inner surface 123a is absorbed, and correspondingly, the light shielding layer 142 is adjacent to the bottom side inner surface 123a of the molded base 12, and the bottom side portion of the molded base 12 The inner surface 123a extends downward from the light shielding layer 142, and between the two, the outer portion of the light window 122 forms a space for suppressing the emission of stray light, and a light suppression groove 1221, so that the stray light L22 enters the In the light-sinking groove 1221, it is not possible to emit in the light-sinking groove 1221. More specifically, the stray light L12 can be reflected only by the bottom side inner surface 123a and absorbed by the light shielding layer 142, so that the optical path of the stray light L12 is held in the light suppression groove 1221, thereby effectively reducing The stray light reaching the photosensitive element 13 is reached.

5A to 7C are a camera module 100 and a photosensitive assembly 10 thereof according to a second preferred embodiment of the present invention. Similarly, the camera module 100 includes the photosensitive module 10, the lens 30 and a lens Lens carrier element 40. The lens 30 is assembled to the lens carrying member 40 to form a lens assembly. The lens carrying member 40 can be a driver or a fixed lens barrel. In this embodiment, the lens carrying component is a driver, and the driver can be implemented as a voice coil motor, a piezoelectric motor, a thermodynamic driver, a microelectromechanical driver, etc. to implement an autofocus function, thereby forming an autofocus camera mode. group.

Correspondingly, the photosensitive member 10 includes a circuit board 11, a molding base 12, a photosensitive element 13 and a filter element 14. The molding base 12 includes a base body 121 which is integrally formed. A light window 122 is formed on the circuit board 11 and the photosensitive element 13, and the light window 122 is a closed space, and provides light passage to the photosensitive element 13.

The filter element 14 includes a filter element body 141 and a light shielding layer 142, the light shielding layer 142 is located on the bottom side of the filter element body 141 and is located at the filter element body 141 and the molding base. Between the seats 12, the light shielding layer 142 is a light absorbing material, which causes the filter element main body 141 to form an intermediate effective transparent region 1411 and a surrounding region 1412, and the light passing through the lens 30 can only pass through the light. The effective light transmitting region 1411 can reach the inside of the molded base 12. The light shielding layer 142 is an annular structure, and a window is formed in the middle, that is, the light shielding layer 142 forms a light path 1420 for allowing light to enter the light window 122 and then reach the photosensitive element 13 and is reduced in arrival. The stray light of the photosensitive element 13.

The photosensitive element 13 has a photosensitive area 131 in the middle and a non-sensitive area 132 around the photosensitive area 131. The light shielding layer 142 has an inner edge 1421 and an outer edge 1422. The distance between the inner edge 1421 of the light shielding layer 142 and the optical axis X is greater than or equal to, or slightly smaller than the distance between the outer edge 1311 of the photosensitive region 131 and the optical axis X.

In this embodiment of the invention, the inner surface of the base body 121 of the molded base 12 preferably has a central symmetrical structure including a plurality of portions of the inner surface extending in different directions, such as the molding base. The base body 121 of the seat 12 includes three portions, that is, a photosensitive element joint portion 1211 and a top side extension portion 1212 located around the light window 122 shown in FIG. 5A, and is located around the photosensitive member 13. The integrated body is integrated with a peripheral portion of the photosensitive member 13 and a circuit board joint portion 1213 of the top surface of the circuit board 11, and the three portions integrally extend to form an integral structure. The photosensitive element coupling portion 1211 and the photosensitive element coupling portion 1211 have an inner surface integrally extending from the photosensitive member 13, which is defined as a first partial inner surface 1231 of the molded base 12, the top side extending The portion 1212 has an inner surface extending integrally from the photosensitive element joint portion 1211, which is defined as a second portion inner surface 1232 of the molded base 12, the second portion inner surface 1232 integrally extending from the The first portion of the inner surface 1231.

The

inner surfaces

1231 and 1232 of the photosensitive element joint 1211 and the top side extension 1212 respectively extend with different slopes, and the second partial inner surface 1232 of the top side extension 1212 is opposite to the photosensitive element The first partial inner surface 1231 of the joint portion 1211 extends upward with a greater slope, or the second portion inner surface 1232 of the top side extension 1212 extends upward without a slope, ie, the top side extension The second portion inner surface 1232 of the 1212 extends substantially perpendicular to the top surface of the photosensitive element 13, and the top side extension 1212 becomes a vertical extension such that the area of the top surface of the top side extension 1212 Can be relatively large, that is, the top surface of the top side extension 1212 determines the area of the top surface 124 of the molded base 12, and the extension of the photosensitive element joint 1211 and the top side extension 1212 The structure can increase the area of the top surface 124 of the molded base 12, thereby providing a larger mounting area for the lens or lens assembly above the photosensitive assembly 10 for more secure mounting above. A lens or lens assembly and capable of reducing the area of the filter element 14.

That is, in order to facilitate demolding of the molding process and to prevent stray light, the photosensitive member joint portion 1211 is formed by a structure in which the first portion inner surface 1231 defined by its inner surface is inclined at a relatively small slope from the The photosensitive element 13 extends upwardly, and the second partial inner surface 1232 defined by the inner surface of the top side extension 1212 integrally extends in a meandering manner from the first partial inner surface 1231 and has a relatively large slope or no slope Extending upwardly, that is, an angle formed between the second partial inner surface 1232 of the molded base 12 and the first partial inner surface 1231, so as to be inclined upwardly with respect to a fixed slope, can effectively increase The area size of the top surface 124 of the molded susceptor 12 is described.

As shown in FIG. 5B, an angle between the first portion inner surface 1231 defined by the inner surface of the photosensitive element joint portion 1211 and the optical axis X of the camera module 100 is α, and the top side extension portion The angle between the second portion inner surface 1232 defined by the inner surface of 1212 and the optical axis X of the camera module 100 is β, wherein the value of α ranges from 3° to 80°, and the value range of β is 0° to 10°, and α>β. For example, in one embodiment, the value of a is 3° and the value of β is 0°; in one embodiment, the value of α is 30° and the value of β is 0°; in a specific embodiment, The value of α is 60° and the value of β is 0°; in one embodiment, the value of α is 45° and the value of β is 5°; in one embodiment, the value of α is 80°, β The value is 10°.

That is, the angle β between the second partial inner surface 1232 defined by the inner surface of the top side extension 1212 and the optical axis X of the camera module 100 is opposite to the photosensitive element coupling portion 1211. The angle α between the first partial inner surface 1231 defined by the inner surface and the optical axis X of the camera module 100 has a smaller angle, such that the second portion of the top side extension 1212 The inner surface 1232 extends upward with a greater slope or in a direction perpendicular to the photosensitive element 13, thereby increasing the area of the top surface 124 of the molded base 12.

As shown in FIG. 5B, in this preferred embodiment of the present invention, preferably, the thickness H1 of the photosensitive element joint portion 1211 ranges from 0.05 mm to 0.7 mm, and the thickness H2 of the top side extension portion 1212 ranges. It is 0.02mm to 0.6mm. For example, in one embodiment, the thickness H1 of the photosensitive element joint portion 1211 ranges from 0.08 mm, and the thickness H2 of the top side extension portion 1212 ranges from 0.5 mm; in one embodiment, the photosensitive portion The thickness H1 of the element joint portion 1211 ranges from 0.4 mm, and the thickness H2 of the top side extension portion 1212 ranges from 0.3 mm. In one embodiment, the thickness H1 of the photosensitive element joint portion 1211 ranges from 0.5. In mm, the thickness H2 of the top side extension 1212 ranges from 0.1 mm.

It can be understood that the second partial inner surface 1232 of the top side extension 1212 is deflected from the first partial inner surface 1231 to extend in a direction smaller than the optical axis X, thereby allowing molding. In the process, the nip which is pressed against the photosensitive member 13 can be prevented from avoiding the connecting line 15 between the circuit board 11 and the photosensitive member 13, thereby preventing the connecting line 15 from being crushed. That is, in some cases, if the molded base 12 to be formed is extended with a relatively small fixed slope, such as an angle between the inner surface and the optical axis X of 45 to 80, in the mold The embossing of the photosensitive member 13 in the plastic process may hit the connecting wire 15 to cause damage to the connecting wire 15.

As shown in FIG. 6A, the angle α between the first partial inner surface 1231 defined by the inner surface of the photosensitive element coupling portion 1211 and the optical axis X of the camera module 100 may be relatively large, so that incident The light ray L32 to the inner surface 1231 of the first portion is not directly reflected to the photosensitive member 13 to form stray light. That is, the photosensitive element joint portion 1211 and the top side extension portion 1212 are fitted to each other, the structure of the photosensitive element joint portion 1211 facilitates demolding and reduces stray light, and the top side extension portion 1212 is used to increase The area of the top surface 124 of the molded base 12 and the structure of the top side extension 1212 avoid the molding process from being crushed by the ram by the molding process. That is, preferably, the position 1230 where the first partial inner surface 1231 and the second partial inner surface 1232 are connected is located inside the connecting line 15. The turning point between the photosensitive element coupling portion 1211 and the top side extending portion 1212 does not exceed the position where the connecting line 15 is located, that is, the photosensitive element coupling portion 1211 is not extended to the connecting line 15 The transition to the top side extension 1212 is completed immediately before the connection line 15 is prevented from being crushed by the ram during the molding process. For example, when the top side extension 1212 is a vertical extension, the distance between the position of the inner edge 1241 of the top surface 124 of the molded base 12 and the optical axis X of the camera module is not less than The distance between the connecting line 15 and the optical axis X of the camera module is such that the top side extension 1212 increases the area of the top surface 124 of the molded base 12.

As shown in FIG. 6B, when the filter element 14 is disposed only on the top side of the top side light shielding layer 143, it is capable of absorbing a portion of the light N31, but the light N32 is subjected to the molded base and the filter. The bottom surface of the light element reflects to form stray light.

When the filter element 14 is provided with the light shielding layer 142 on the bottom side, as shown in FIG. 6A, a part of the stray light L31 incident on the upper surface of the filter element main body 141 of the filter element 14 is formed. Reflected by the upper surface of the filter element body 141 without entering the light window 122 of the molding base 12, and refracting into the surrounding area outside the light-transmitting region 1411 above the light shielding layer 142 At 1412, the light window 122 is absorbed by the light shielding layer 142 and cannot enter the light window 122 inside the molded base 12, thereby blocking a part of stray light.

When another portion of the stray light L32 is incident on the first partial inner surface 1231 through the effective light-transmitting region 1411 of the filter element body 141, the first portion of the tilt of the molded base 12 may be A portion of the inner surface 1231 is reflected upward to the light shielding layer 142 or further reflected by the second partial inner surface 1232 to the light shielding layer 142 to be absorbed by the light shielding layer 142 so as not to be further reflected. The photosensitive element 13 affects the imaging quality of the camera module 100.

Correspondingly, the light shielding layer 142 is adjacent to the second partial inner surface 1232 of the molding base 12, and the second partial inner surface 1232 of the molding base 12 is from the light shielding layer 142 extending downward, and between the first portion inner surface 1231 and the second portion inner surface 1232 of the light shielding layer 142, an outer portion of the light window 122 forms a light suppression groove 1221, the light suppression groove 1221 is a space for suppressing the emission of stray light. More specifically, as shown in FIG. 6A, the stray light L32 enters the light suppression groove 1221 so as not to be ejected in the light suppression groove 1221.

It can be understood that since the light shielding layer 142 and the second partial inner surface 1232 of the molding base 12 are adjacent, the light shielding layer 142 is effectively reduced through the filter element body. 141 and light reaching the inner surface 1232 of the second portion, thereby preventing light incident on the inner surface 1232 of the second portion from being reflected by the inner surface 1232 of the second portion to reach the photosensitive element 13 to form stray light and affecting The imaging quality of the camera module 100.

As shown in FIG. 6A, the second portion inner surface 1232 extends downward from the light shielding layer 142, and the light shielding layer 142 extends horizontally from the second portion inner surface 1232, the light shielding layer 142 and An angle γ is formed between the inner surface 1232 of the second portion, and the angle γ is an acute angle or a right angle, so that the light-proof groove 1221 of such a structure is formed to prevent the light incident on the inner surface 123 from being reflected toward the The photosensitive element 13 forms stray light.

7A to 7C are schematic views showing a manufacturing process of the integrally formed circuit board 11 of the photosensitive member 10 according to the present invention, the molded base 12 and the integral assembly of the photosensitive member 13. The manufacturing apparatus 200 includes a molding die 210 including a first mold 211 and a second mold 212 capable of opening and clamping, that is, a mold fixing device capable of the first mold 211 and the The second mold 212 is separated and closely formed to form a molding cavity 213. When the mold is closed, the circuit board 11 connected to the photosensitive member 13 is fixed in the molding cavity 213, and the fluid-like mold The plastic material 16 enters the molding cavity 213 to be integrally formed on the circuit board 11 and the photosensitive member 13, and after curing, forms the integrally formed on the circuit board 11 and the photosensitive member 13. The susceptor 12 is molded. It will be appreciated that in the production process, the integral assembly described above is typically produced in a panel manner, i.e., a continuous molded base is formed on a circuit board panel, but is cut to form the integral assembly of the present invention. In FIGS. 7A to 7C, a process of forming one of the integral components will be described as an example.

More specifically, the molding die 210 further has a base molding guide groove 215 and a light window molding portion 214 included in the base molding guide groove 215. When the first and

second molds

211 and 212 are clamped, the light window molding portion 214 and the base molding guide groove 215 extend in the molding cavity 213, and the molding material in a fluid state 16 is filled into the base molding guide groove 215, and the position corresponding to the light window molding portion 214 cannot be filled with the fluid molding material 16, so that the position corresponding to the base molding guide groove 215 is The molded material 16 in fluid form may be cured to form the molded base 12, which includes an annular molded body 121 corresponding to the molded base 12 of each of the photosensitive members 10, in correspondence The position of the light window forming portion 214 may form the light window 122 of the molded base 12. The molding material 16 may be selected from, but not limited to, nylon, LCP (Liquid Crystal Polymer), PP (Polypropylene), epoxy resin, and the like.

More specifically, when the first and

second molds

211 and 212 are closed and the molding step is performed, the light window forming portion 214 is superposed on the top surface of the photosensitive member 13 and closely fits, thereby fluid The molding material 16 is prevented from entering the photosensitive region 131 of the photosensitive member 13 on the circuit board 11, so that the molding base can be finally formed at a position corresponding to the light window molding portion 214. The light window 122 of the seat 12. It can be understood that the light window forming portion 214 may be a solid structure or a structure having a groove shape inside as shown in the drawing. It can be understood that, in another variation, an elastic film may be disposed on the bottom side of the first mold 211 to provide cushioning and demolding after the molding process.

As shown in FIGS. 7A to 7C, the light window forming portion 214 is press-fitted to the photosensitive member 13 to extend correspondingly to the photosensitive member joint portion 1211 and the top side of the molded base 12. The light window forming portion 214 has a bottom side molding portion 2141 and a top side molding portion 2142, and the bottom side molding portion 2141 is a frustum-shaped structure having an enlarged inner diameter from the bottom side toward the top side direction. . Wherein the outer surface 21411 of the bottom side molding portion 2141 forms an angle α with the optical axis X perpendicular to the photosensitive member 13, the outer surface 21421 of the top side molding portion 2142 and the light perpendicular to the photosensitive member 13 An angle β is formed between the axes X. Accordingly, the value of α ranges from 3° to 80°, the value of β ranges from 0° to 10°, and α>β. The top side molding portion 2142 is steered from the bottom side molding portion 2141, and is not pressed against the connecting wire 15 in the molding process to cause damage of the connecting wire 15.

The light window forming portion 214 has a first partial outer surface 21411 and a second partial outer surface 21421 from the bottom side toward the top side direction, which form an angle α and β with an optical axis X perpendicular to the photosensitive member 13, respectively. The value of α ranges from 3° to 80°, and the value of β ranges from 0° to 10°, and α>β. Thereby, after the molding process, the molded base 12 is formed into the photosensitive element joint portion 1211 and the top side extension portion 1212, and the structure formed by the photosensitive element joint portion 1211 is defined for its inner surface. The first partial inner surface 1231 extends obliquely from the photosensitive element 13 with a relatively small slope, and the second partial inner surface 1232 defined by the inner surface of the top side extension 1212 is from the inner surface of the first portion The 1231 extends integrally in a folded manner and extends upward with a relatively large slope or without a slope. That is, the angle between the first portion inner surface 1231 defined by the inner surface of the photosensitive element coupling portion 1211 and the optical axis X of the camera module 100 is α, and the inner surface of the top side extension 1212 is defined. The angle between the second portion inner surface 1232 and the optical axis X of the camera module 100 is β, wherein the value of α ranges from 3° to 80°, and the value of β ranges from 0° to 10°. And α>β. It can be understood that the structure in which the light window molding portion 214 is extended in the manner of folding can be reduced in the molding process by the non-photosensitive region 132 and the light window molding portion 214 entering the photosensitive member 13. The molding material 16 of the space of the bottom side portion of the base forming groove 215 of the first portion of the outer surface 21411, so that the molding material 16 in the space is small in volume, and generates a small pressure and pressure. It is never easy to enter the photosensitive region 131 of the photosensitive member 13, i.e., the occurrence of "flash" is avoided.

As shown in FIG. 8A, in accordance with a modified embodiment of the second preferred embodiment of the present invention, in this embodiment, the top surface of the filter element body 141 is further provided with a top side light shielding layer 143. The top side light shielding layer 143 and the light shielding layer 142 cooperate to enhance the effect of reducing stray light. More specifically, the light ray L41 incident on the top side light shielding layer 143 is absorbed by the top side light shielding layer 143, and the light ray L42 is absorbed by the light shielding layer 142. It is to be understood that the second preferred embodiment described above may also be provided with the top side light shielding layer 143.

As shown in FIG. 8B, according to a variant embodiment of the second preferred embodiment of the present invention, the camera module 100 includes the photosensitive member 10, the lens 30 and a lens carrying member 40. The lens 30 is assembled to the lens carrying member 40 to form a lens assembly. The lens carrying component 40 can be a fixed lens barrel to form a fixed focus camera module.

Correspondingly, the photosensitive member 10 includes a circuit board 11, a molding base 12, a photosensitive element 13 and a filter element 14. The molding base 12 includes a base body 121 which is integrally formed. A light window 122 is formed on the circuit board 11 and the photosensitive element 13, and the light window 122 is a closed space, and provides light passage to the photosensitive element 13. The filter element 14 includes a filter element body 141 and a light shielding layer 142. The light shielding layer 142 is a light absorbing opaque material located on a bottom side of the filter element body 141 and located at the filter element. Between the body 141 and the molded base 12.

The molded base 12 has a top side recess 125 on its top side for assembling the filter element 14. That is, in this embodiment of the invention, the top surface 124 of the molded base 12 may be a multi-stepped surface, the top surface 124 being divided into a multi-part top surface that is not coplanar, such as a first partial top a surface 124a and a second partial top surface 124b, the first partial top surface 124a being recessed relative to the second partial top surface 124b toward the photosensitive element 13, such that the top side of the first partial top surface 124a The top side groove 125 is formed, and the filter element 14 is assembled to the top side groove 125.

The top side extension 1212 of the molded base 12 is correspondingly in two stages, and the top side groove 125 is formed on the top side thereof. The inner surface 123 of the molded base 12 correspondingly includes the first partial inner surface 1231 of the photosensitive element joint 1211 and the second partial inner surface 1232 and the third partial inner surface formed by the top side extension 1212. 1233, the light shielding layer 142 is adjacent to the second partial inner surface 1232 of the molding base 12, and forms the above between the first partial inner surface 1231 and the second partial inner surface 1232 The light groove 1221 is formed to form a space for suppressing the emission of stray light. That is, the light incident on the first partial inner surface 1231 is directly reflected to the light shielding layer 142 or further reflected by the second partial inner surface 1232 to the light shielding layer 142 to be absorbed by the light shielding layer 142, thereby reducing Stray light. The top side light shielding layer 143 is also disposed on the top side of the filter element 14 to enhance the effect of eliminating stray light.

It can be understood that, in the embodiment of FIG. 2 to FIG. 9 described above, the wiring direction of the connecting line 15 is from the photosensitive element 13 to the circuit board 11, that is, by being disposed on the photosensitive element 13. The photosensitive element is connected to the disk, and the wire jig is first wired at the top end of the photosensitive element lands to form a first end of the connecting line 15 connected to the photosensitive element lands, and then the preset position is raised And then moving toward the board lands on the board and then lowering to form a second end of the connecting line 15 connected to the board lands at the top end of the board lands.

As shown in FIG. 9, according to another modified embodiment of the second preferred embodiment of the present invention, the electronic component 112 of the circuit board 11 of the photosensitive module 10 of the camera module 100 is mounted. On its bottom side, the photosensitive assembly 10 accordingly also includes one or more bottom side moldings 19 that integrally enclose the electronic component 112. That is, the electronic component 112 is not mounted on the top side of the circuit board 11, and the electronic components 112 are disposed on the bottom side of the circuit board 11 and pass through the bottom side molding portion 19, which may be many A separate portion may also form an integral molded base that embeds the electronic component 112 and forms a bottom side flat support surface. The bottom side molding portion 19 and the molding base 12 may be separately formed, or may be formed in a single molding process, such as the circuit board 11 may have perforations, and the molding material 16 is Both sides of the circuit board 11 can be reached in the molding process.

It can be understood that the space on the bottom side of the circuit board 11 under the photosensitive element 13 can also be used to arrange the electronic component 112, so that the electronic component 112 does not need to be arranged as in the above embodiment. Around this photosensitive member 13, in this embodiment, the area size of the circuit board 11 is significantly reduced.

Accordingly, the molded base 12 includes the photosensitive element joint portion 1211 and the top side extension portion 1212, such that the top side extension portion 1212 passes through the first side extension portion 1212 in the case where the size of the photosensitive member 10 is further reduced. Extendingly, the area of the top surface 124 of the molded base 12 is increased to provide a larger mounting surface for the lens carrier element 40 and the filter element 14. And the filter element 14 includes a bottom side light shielding layer 142 and a top side light shielding layer 143 disposed on both sides of the filter element body 141, thereby enhancing the effect of eliminating stray light.

As shown in FIG. 10, the wire bonding connection between the photosensitive member 13 and the circuit board 11 is from the circuit board 11 to the photosensitive member 13. That is, by providing the circuit board lands on the circuit board 11, the wire rig is first wired at the top end of the circuit board lands to form the connection line 15 connected to the circuit board lands. The second end, then raises the preset position, then translates toward the board lands and forms an opposite first end of the connecting line 15 connected to the photosensitive element lands at the top end of the illuminating element lands Thus, the connecting line 15 extends in a curved shape, and causes the top end height h2 of the connecting line 15 to be lower than the height h1 of the top end of the connecting line in the embodiment of FIGS. 2 to 9, as exemplified in FIG. Thus, in the molding process, the light window forming portion 214 of the molding die 210 needs to avoid a reduction in the space of the connecting line 15, so that the height of the top side extending portion 1212 can be higher.

As shown in FIG. 11 to FIG. 13A, a camera module 100 according to a third preferred embodiment of the present invention includes a photosensitive module 10 and a lens 30. The lens 30 is assembled to the photosensitive component to form a fixed focus camera module. It can be understood that, in another modified embodiment, the lens may also be disposed on a driver or a fixed lens barrel to form a lens assembly, and the lens assembly is assembled to the photosensitive assembly.

Correspondingly, the photosensitive member 10 includes a circuit board 11, a molding base 12, a photosensitive element 13, a filter element 14 and a filter element holder 17, and the molding base 12 includes a base. The main body 121 is integrally formed on the circuit board 11 and the photosensitive member 13 and forms a light window 122. The light window 122 is a closed space and provides a light path to the photosensitive member 13.

The filter element holder 17 is assembled to the molded base 12 and has a bottom side opening window 171 and a top side mounting groove 172, and the filter element 14 is assembled to the top side mounting groove 172. The assembly of the filter element 14 to the filter element holder 17 is less susceptible to damage than the direct assembly to the mold base 12.

The filter element 14 includes a filter element body 141, a bottom side light shielding layer 142 and a top side light shielding layer 143. The light shielding layer 142 is located on the bottom side of the filter element body 141 and is located at the filter. Between the light element body 141 and the inner top surface of the filter element holder 17, the light shielding layer 142 is a light absorbing material that causes the filter element body 141 to form an intermediate effective light transmissive area 1411 and a surrounding area 1412, Light passing through the lens 30 can only pass through the effective light transmitting region 1411 to reach the inside of the molded base 12. The light shielding layer 142 is an annular structure, and a window is formed in the middle, that is, the light shielding layer 142 forms a light path 1420 for allowing light to enter the light window 122 and reduces the amount of impurities reaching the photosensitive element 13. The astigmatism, the top side light shielding layer 143 can enhance the effect of reducing stray light.

An outer edge 1422 of the light shielding layer 142 is located outside the inner edge 1701 of the top surface of the filter element holder 17, that is, the inner edge of the top surface of the filter element holder 17 and the light shielding layer A light transmissive region is not formed between the outer edges 1422 of 142.

In this embodiment of the invention, the base body 121 of the molded base 12 includes a plurality of portions of the inner surface extending in different directions, such as the base body 121 of the molded base 12. A three-part, that is, a photosensitive element joint 1211 and a top side extension 1212 located around the light window 122 shown in FIGS. 12A and 12B, and a circuit board on the bottom side of the photosensitive element joint 1211 Bonding portion 1213. The photosensitive element coupling portion 1211 has an inner surface integrally extending from the photosensitive member 13, which is defined as a first partial inner surface 1231 of the molded base 12, and the top side extending portion 1212 has a photosensitive member from the photosensitive member An integrally extended inner surface of the joint 1211 is defined as a second partial inner surface 1232 of the molded base 12, the second partial inner surface 1232 extending integrally from the first partial inner surface 1231.

The

inner surfaces

1231 and 1232 of the photosensitive element joint 1211 and the top side extension 1212 respectively extend with different slopes, and the second partial inner surface 1232 of the top side extension 1212 is opposite to the photosensitive element The first partial inner surface 1231 of the joint portion 1211 extends upward with a greater slope, or the second portion inner surface 1232 of the top side extension 1212 extends upward without a slope, ie, the top side extension The second portion inner surface 1232 of the 1212 extends substantially perpendicular to the top surface of the photosensitive element 13 such that the area of the top surface of the top side extension 1212 can be relatively large, ie, the top side extension 1212 The top surface determines the area of the top surface 124 of the molded base 12, and the elongated structure of the photosensitive element joint 1211 and the top side extension 1212 can increase the molding base 12 The area of the top surface 124 is such that a larger mounting area can be provided for the lens or lens assembly or the filter element holder 17 above the photosensitive assembly 10, such as in this embodiment, the molded base 12 The top surface 124 is more firmly mounted above the brackets 17 of the filter element. And such a structure can reduce the area of the filter element 14.

As shown in FIG. 12B, an angle between the first portion inner surface 1231 defined by the inner surface of the photosensitive element coupling portion 1211 and the optical axis X of the camera module 100 is α, and the top side extension portion The angle between the second portion inner surface 1232 defined by the inner surface of 1212 and the optical axis X of the camera module 100 is β, wherein the value of α ranges from 3° to 80°, and the value range of β is 0° to 10°, and α>β.

As shown in Fig. 12B, in this preferred embodiment of the invention, preferably, the thickness H1 of the photosensitive element joint portion 1211 ranges from 0.05 mm to 0.7 mm, and the thickness H2 of the top side extension portion 1212 ranges. It is 0.02mm to 0.6mm.

As shown in FIG. 13B, when the filter element 14 is disposed only on the top side of the top side light shielding layer 143, it is capable of absorbing a portion of the light N51, but the light N52 is subjected to the molded base and the filter. The bottom surface of the light element reflects to form stray light.

When the filter element 14 is provided with the light shielding layer 142 and the top side light shielding layer 143, as shown in FIG. 13A, the upper surface of the filter element body 141 is incident on the filter element 14. Part of the stray light L51 is absorbed by the top side light shielding layer 143, thereby serving to block a part of stray light.

When another portion of the stray light L52 is incident on the first partial inner surface 1231 through the effective light transmitting region 1411 of the filter element body 141, the first portion of the tilt of the molded base 12 A portion of the inner surface 1231 is reflected upward to the light shielding layer 142 or further reflected by the second partial inner surface 1232 to the light shielding layer 142 to be absorbed by the light shielding layer 142 so as not to be further reflected. The photosensitive element 13 affects the imaging quality of the camera module 100.

Correspondingly, the light shielding layer 142 and the filter element holder 17 are adjacent to an inner surface 1702 below the filter element, and the filter element holder 17 is located at an inner surface 1702 below the filter element. The light shielding layer 142 extends downward, and in the light shielding layer 142, the inner surface 1702 of the filter element holder 17 under the filter element, the first partial inner surface 1231 and the second partial inner surface Between 1232, the outer portion of the light window 122 forms a light-sinking groove 1221. The light-sinking groove 1221 is a space for suppressing the emission of stray light. More specifically, as shown in FIG. 13A, the stray light L52 enters the light suppression groove 1221 so as not to be ejected in the light suppression groove 1221.

Moreover, it can be understood that because the light shielding layer 142 and the filter element holder 17 are located adjacent to the inner surface 1702 below the filter element, the light shielding layer 142 is effectively reduced through the Filtering the element body 141 to reach the inner surface 1702 under the filter element and the light of the second portion inner surface 1232, thereby avoiding incidence into the inner surface 1702 and the second portion below the filter element The light of the surface 1232 is reflected to reach the photosensitive element 13 to form stray light and affect the imaging quality of the camera module 100.

As shown in FIG. 14A, according to a variant embodiment of the above third preferred embodiment of the present invention, in this embodiment, the filter element 14 may be provided only on the bottom side of the filter element body 141. The light shielding layer 142 may be absent from the top side light shielding layer 143.

As shown in FIG. 14B, according to another modified embodiment of the above third preferred embodiment of the present invention, the top side of the molded base 12 is formed with a top side groove 125, and the filter element holder 17 is assembled. The top side groove 125 is moved downward so that the lens 30 can be assembled on the top side of the molded base 12. That is, the top surface 124 of the molded base 12 which is enlarged by the multi-stage extension is used to assemble the filter element holder 17 and the lens 30.

15 to FIG. 17A is a camera module 100 according to a fourth preferred embodiment of the present invention, the structure of which is similar to the third preferred embodiment described above. The camera module 100 includes a photosensitive component 10 and A shot of 30. The lens 30 is assembled to the photosensitive component to form a fixed focus camera module. It can be understood that, in another modified embodiment, the lens may also be disposed on a driver or a fixed lens barrel to form a lens assembly, and the lens assembly is assembled to the photosensitive assembly.

Correspondingly, the photosensitive member 10 includes a circuit board 11, a molding base 12, a photosensitive element 13, a filter element 14 and a filter element holder 17, and the molding base 12 includes a base. The main body 121 is integrally formed on the circuit board 11 and the photosensitive member 13 and forms a light window 122. The light window 122 is a closed space and provides a light path to the photosensitive member 13. The molded base 12 includes a photosensitive element joint 1211 and a top side extension 1212 extending in multiple stages, and the

inner surfaces

1231 and 1232 extend in different directions, respectively, for reducing stray light and increasing The area of the top surface 124 of the molded susceptor 12 is described.

The filter element holder 17 is assembled to the molding base 12 and has a top side opening window 171 and a bottom side mounting groove 173, and the filter element 14 is assembled in the bottom side mounting groove in a reversed manner. 173. The filter element 14 includes a filter element body 141 and a light shielding layer 142 disposed on a bottom side of the filter element body 141. Thus, similarly, the light shielding layer 142 can function to reduce stray light reaching the photosensitive element 13.

In addition, the lens 30 includes a carrier 31 and one or more lenses 32 assembled to the carrier 31, wherein the filter is caused by the filter element 14 being flipped over the filter element holder 17 The element 14 does not protrude from the upper surface of the filter element holder 17, and the bottommost side lens of the one or more lenses 32 of the lens 30 can be positioned relatively downward, thereby reducing the photosensitive element The distance between the 13 is such that the back focus of the camera module 100 can be reduced.

As shown in FIG. 17B, when the filter element 14 is disposed only on the top side of the top side light shielding layer 143, it is capable of absorbing a portion of the light N61, but the light N62 is subjected to the molded base and the filter. The bottom surface of the light element reflects to form stray light.

When the filter element 14 is provided with the light shielding layer 142 on the bottom side, as shown in FIG. 17A, part of the stray light L61 incident on the upper surface of the filter element holder 17 is reflected without being entered. The light window 122 of the susceptor 12 is molded to serve the purpose of blocking a portion of stray light.

When another portion of the stray light L62 is incident on the first partial inner surface 1231 through the effective light-transmitting region 1411 of the filter element body 141, the first portion of the tilt of the molded base 12 may be A portion of the inner surface 1231 is reflected upward to the light shielding layer 142 or further reflected by the second partial inner surface 1232 to the light shielding layer 142 to be absorbed by the light shielding layer 142 so as not to be further reflected. The photosensitive element 13 affects the imaging quality of the camera module 100. It is worth mentioning that the filter element 14 may further include a top side light shielding layer 143 on the top side of the filter element body 141 to enhance the effect of reducing stray light.

Correspondingly, the light shielding layer 142 is adjacent to the second partial inner surface 1232 of the molding base 12, and the second partial inner surface 1232 of the molding base 12 is from the light shielding layer 142 extending downward, and between the first portion inner surface 1231 and the second portion inner surface 1232 of the light shielding layer 142, an outer portion of the light window 122 forms a light suppression groove 1221, the light suppression groove 1221 is a space for suppressing the emission of stray light. More specifically, as shown in FIG. 17A, the stray light L62 enters the light-sinking groove 1221 so as not to be ejected in the light-sinking groove 1221.

Also, it can be understood that the light shielding layer 142 is effectively reduced through the filter element body 141 because of the light shielding layer 142 and the second portion inner surface 1232 of the molding base 12. And reaching the light of the inner surface 1232 of the second portion, thereby preventing the light incident on the inner surface 1232 of the second portion from being reflected to reach the photosensitive element 13 to form stray light and affect the imaging quality of the camera module 100. .

As shown in FIG. 18, according to another modified embodiment of the fourth embodiment of the present invention, the connecting line 15 is wired from the circuit board 11 to the photosensitive member 13, thereby molding the molding process. The light window forming portion 214 does not require the escape space provided to the connecting line 15 as much as possible, and the top side extending portion 1212 has a large height to increase the top of the molded base 12. The area of surface 124.

In addition, a top window 171 is formed on the top side of the filter element holder 17. The length of the top side portion 174 of the filter element holder 17 extending inward may be greater than or equal to the length of the light shielding layer 142 extending inwardly. The area of the window 171 may be no larger than the area of the light path 1420, such that the top surface of the filter element holder 17 has the effect of blocking a part of the stray light L71, so that the top side of the filter element 14 is not required. The top side light shielding layer 143 is provided. The stray light L72 can be absorbed by the light shielding layer 142.

As shown in FIG. 19, according to another modified embodiment of the fourth embodiment of the present invention, the photosensitive member 10 includes a circuit board 11, a molding base 12, a photosensitive element 13, and a filter element. 14. A filter element holder 17 and a stop frame 18. The molded base 12 is integrally coupled with the circuit board, the photosensitive element 13 and the stop frame 18, and the filter element 14 is assembled to the filter element holder 17, and the filter element holder 17 It is assembled to the top side of the molded base 12. The light shielding layer 142 of the filter element 14 is disposed on the bottom side of the filter element body 142 similarly to the fourth preferred embodiment described above, and functions to reduce stray light.

The annular frame 18 is disposed on the photosensitive member 13 for pressing the light window forming portion 214 to the frame 18 in a molding process to prevent the molding material 16 of fluid. Flowing into the photosensitive region 131 of the photosensitive member 13, wherein the molding base 12 is integrally formed on the circuit board, the photosensitive member 13 and the frame 18, and the frame 18 is preferably implemented An example may be glue, which may have a predetermined elasticity, such as a modulus of elasticity ranging from 0.1 GPa to 1 Gpa.

A base body 121 of the molded base 12 includes a photosensitive element joint portion 1211 and a top side extension portion 1212 around the light window 122, and the photosensitive element on the bottom side of the photosensitive element joint portion 1211. A circuit board joint portion 1213 around the top side of the circuit board 11. The photosensitive element coupling portion 1211 is integrally coupled to the circuit board 11, the photosensitive member 13 and the stop frame 18, and has a first partial inner surface 1231 extending obliquely from the frame 18, the top side The extension portion 1212 has a second partial inner surface 1232 that is steered from the first partial inner surface 1231 so that the structure enables the reflective action of the inclined first partial inner surface 1231 to reduce stray light, and to extend the steering The two-part inner surface 1232 has a top mounting surface of the top side extension 1212 having a larger mounting area, and the angle between the inner surface of the two portions and the optical axis X is similar to the previous embodiment. It will be appreciated that the block 18 of this embodiment can also be applied to other embodiments of the invention.

Those skilled in the art should understand that the embodiments of the present invention described in the above description and the accompanying drawings are only by way of illustration and not limitation. The object of the invention has been achieved completely and efficiently. The present invention has been shown and described with respect to the embodiments of the present invention, and the embodiments of the present invention may be modified or modified without departing from the principles.

Claims

A photosensitive component, comprising:

a circuit board;

a photosensitive element operatively coupled to the circuit board;

a molding base integrally bonded to the circuit board and the photosensitive member and forming a light window; and

a filter element, the filter element comprising a filter element body and a light shielding layer disposed on a bottom side of the filter element body, the light shielding layer forming a light path for allowing light to enter the light window And the stray light reaching the photosensitive element is reduced.
The photosensitive member according to claim 1, wherein said filter member is assembled to a top side of said molded base, wherein said molded base has an inclined inner surface integrally extending from said photosensitive member, A light suppression groove is formed between the inclined inner surface and the light shielding layer.
The photosensitive member according to claim 1, wherein said molded base has a top side groove, and said filter element is assembled to said top side groove of said molded base, wherein said molding The susceptor has a bottom side inner surface on the bottom side of the filter element extending obliquely integrally from the photosensitive element, wherein a light suppression groove is formed between the bottom side inner surface and the light shielding layer.
The photosensitive member according to claim 1, wherein said filter element is assembled to a top side of said molded base, wherein said molded base has a first portion inner surface adjacent said photosensitive member and away from said a second portion of the inner surface of the photosensitive member connected to the inner surface of the first portion, wherein the first portion inner surface and the optical axis of the photosensitive member have an angle α, the second portion inner surface and the The optical axes of the photosensitive members have an angle β between them, where β < α.
The photosensitive member according to claim 4, wherein a value of α ranges from 3 to 80, and a value of β ranges from 0 to 20 .
The photosensitive member according to claim 4, wherein the molded base includes a photosensitive member joint portion and a top side extending portion, and the photosensitive member joint portion defines an inner surface integrally extending from the photosensitive member to define the first portion a surface, the top side extension integrally extending over the photosensitive element joint and a surface defining the second portion inner surface, the second portion inner surface integrally extending from the first portion inner surface.
The photosensitive member according to claim 6, wherein said top side extending portion has a thickness ranging from 0.02 mm to 0.6 mm, and said photosensitive member joint portion has a thickness ranging from 0.05 to 0.7 mm.
The photosensitive member according to claim 6, wherein said first portion inner surface, said second portion inner surface and said light shielding layer form a light suppression groove.
The photosensitive member according to claim 1, further comprising a filter element holder, said filter element being assembled to said filter element holder, wherein said filter element holder is attached to said molded base Top side.
The photosensitive member according to claim 9, wherein said molded base has a first portion inner surface adjacent said photosensitive member and a second portion inner surface connected to said photosensitive portion from an inner surface of said first portion, Wherein the inner surface of the first portion and the optical axis of the photosensitive member have an angle α, and an angle β between the inner surface of the second portion and the optical axis of the photosensitive member, wherein β < α.
The photosensitive member according to claim 10, wherein a value of α ranges from 3 to 80, and a value of β ranges from 0 to 20 .
The photosensitive member according to claim 10, wherein the molded base comprises a photosensitive member joint portion and a top side extending portion, and the photosensitive member joint portion defines an inner surface integrally extending from the photosensitive member to define the first portion a surface, the top side extension integrally extending over the photosensitive element joint and a surface defining the second portion inner surface, the second portion inner surface integrally extending from the first portion inner surface.
The photosensitive member according to claim 12, wherein said top side extension has a thickness ranging from 0.02 mm to 0.6 mm, and said photosensitive member joint portion has a thickness ranging from 0.05 to 0.7 mm.
The photosensitive member according to any one of claims 10 to 13, wherein said filter element holder has a top side mounting groove, and said filter element is assembled to said top side mounting groove.
The photosensitive member according to any one of claims 10 to 13, wherein said filter element holder has a bottom side mounting groove, and said filter element is assembled to said bottom side mounting groove.
The photosensitive member according to claim 14, wherein an inner surface of said filter element holder below said filter element, said first partial inner surface, said second partial inner surface and said light shielding layer A light suppression groove is formed.
The photosensitive member according to claim 15, wherein said first portion inner surface, a light suppressing groove formed between said second portion inner surface and said light shielding layer.
The photosensitive member according to any one of claims 1 to 13, further comprising a top side light shielding layer disposed on a top surface of said filter element body.
The photosensitive member according to claim 18, wherein an angle γ between said light shielding layer and an inner surface of said molded base is an acute angle or a right angle.
The photosensitive member according to any one of claims 1 to 13, wherein said circuit board further comprises a plurality of electronic components on a bottom side thereof, said photosensitive member comprising a bottom side mold on a bottom side of said circuit board a plastic part that embeds the electronic component.
A camera module, comprising: a lens and a photosensitive member according to any one of claims 1 to 20, wherein the lens is located in a photosensitive path of the photosensitive member of the photosensitive member.
An electronic device comprising: a device body and one or more of the camera modules according to claim 21 mounted to the device body.
The electronic device of claim 22, wherein the electronic device is one selected from the group consisting of a cell phone, a computer, a television, an intelligent loadable device, a vehicle, a camera, and a monitoring device.