KR20230000361A - Protective sheet and camera module comprising the same - Google Patents

Abstract

A protective sheet according to an embodiment includes: a protective member including a first part including a first hole and a second part extended downward from a side end of the first part; and a film member disposed on an upper surface of the first part of the protective member and covering the first hole. The first length of the first part in a horizontal direction is different from the second length of the second part in a vertical direction. The second length is three or more times the first length.

Description

Protective sheet and camera module including the same {PROTECTIVE SHEET AND CAMERA MODULE COMPRISING THE SAME}

The embodiment relates to a protective sheet, and in particular, to a protective sheet capable of protecting a lens module and a camera module including the protective sheet.

Recently, a subminiature camera module has been developed, and the subminiature camera module is widely used in small electronic products such as smart phones, laptop computers, and game consoles.

That is, most mobile electronic devices, including smart phones, are equipped with camera devices for acquiring images from objects, and mobile electronic devices tend to be miniaturized for easy portability.

Such a camera device generally includes a lens through which light is incident, an image sensor through which light incident through the lens is captured, and a number of components for transmitting and receiving electrical signals for an image obtained from the image sensor to an electronic device equipped with the camera device. included In addition, these image sensors and components are generally mounted on a printed circuit board and connected to external electronic devices.

These camera devices include a lens barrel accommodating a lens. Such a lens barrel is generally made of a non-metal material such as a synthetic resin material by using a plastic injection or die casting method.

On the other hand, the camera module as described above is disposed in a mobile electronic device. At this time, the case of the mobile electronic device has an opening exposing the lens barrel and a lens accommodated in the lens barrel. In this case, a black coating layer for preventing reflection may be formed on the surface of the lens barrel. The black coating layer prevents reflection of light, thereby improving the quality of an image acquired by the camera module.

The lens including the black coating layer forms a black ring outside the lens to prevent scattering of light, and there is a problem in that a foreign object defect occurs in the black ring during a camera module assembly process. In addition, there is a problem in that adhesive foreign substances are additionally generated when a general protective tape is attached to prevent foreign substance defects.

Accordingly, there is a need for a protective member that can be easily attached to and detached from the camera module and prevent adhesion defects.

In an embodiment, a protective sheet capable of protecting the black coating layer of the lens barrel and a camera module including the protective sheet are provided.

In addition, in the embodiment, a protective sheet capable of minimizing the adhesive material remaining on the black coating layer of the lens barrel and a camera module including the protective sheet are provided.

In addition, the embodiment is to provide a camera module including a protective sheet and the same that can prevent the adhesive material from remaining on the surface of the lens.

In addition, the embodiment provides a camera module including a protective sheet capable of protecting the lens module during the assembly process of the camera module.

Technical problems to be solved in the embodiments are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

A protection sheet according to an embodiment includes a protection member including a first portion including a first hole and a second portion extending downward from a side end of the first portion; and a film member disposed on an upper surface of the first portion of the protection member and covering the first hole, wherein a first length of the first portion in a horizontal direction is a first length of the second portion in a vertical direction. 2 length, and the second length is at least three times the first length.

In addition, the second length is five times or more than the first length.

In addition, the first part of the protection member includes at least one ventilation part connected to the first hole.

The ventilation unit may include a first ventilation groove formed in a first area of the first portion and a second ventilation groove formed in a second area of the first portion, and the first area and the second ventilation groove may be formed. The areas face each other based on the center of the first hole.

In addition, the ventilation part passes through the first area of the first part and the first ventilation hole exposing the first uppermost part of the second part, and passes through the second area of the first part, and the second part and a second ventilation hole exposing a second top end of the portion, and the first area and the second area face each other based on the center of the first hole.

The adhesive member may include an adhesive member disposed between the first portion of the protection member and the film member, and including a second hole corresponding to the first hole.

Further, a diameter of the second hole of the adhesive member is greater than a diameter of the first hole of the first part.

Further, an outer diameter of the adhesive member is smaller than an outer diameter of the first portion.

Further, the upper surface of the first portion includes a 1-1 portion contacting the lower surface of the adhesive member and a 1-2 portion non-contacting with the adhesive member.

In addition, the shape of the first hole of the first portion and the shape of the film member are circular, the center of the first hole of the first portion is aligned on the same vertical line as the center of the film member, and the first hole The diameter of the first hole of the portion is equal to the diameter of the film member.

In addition, the thickness of the first part is smaller than the thickness of the second part, the thickness of the first part is a third length in the vertical direction of the first part, and the thickness of the second part is It is the 4th length in the horizontal direction of 2 parts.

In addition, the protection member includes polycarbonate (PC).

In addition, the film member is optical PET (Polyethylene Terephthalate).

In addition, the second part of the protection member includes a groove connected from the lowermost end of the second part.

In addition, the groove part includes a first groove part connected to the first lowermost end of the second part and a second groove part connected to a second lowermost end facing the first lowermost end of the second part in a horizontal direction.

Further, the groove portion does not overlap the ventilation portion in an optical axis direction or a vertical direction.

On the other hand, the camera module according to the embodiment includes a camera module including a lens module; a protection member including a first portion including a first hole exposing a portion of an upper surface of the lens module, and a second portion extending downward from a side end of the first portion and disposed on a side surface of the lens module; and a film member disposed on an upper surface of the first portion of the protection member and covering the first hole, wherein a first length of the first portion in a horizontal direction is a length of a vertical direction of the second portion. is different from the second length of , and the second length is at least three times the first length.

In addition, an interior angle between a lower surface of the first portion of the protection member and an inner surface of the second portion is greater than 89 degrees, and when the protection sheet is coupled to the lens module, at least one of the inner surfaces of the second portion A portion is spaced apart from the outer surface of the lens module.

Further, in a state in which the protective sheet is coupled to the lens module, the lower surface of the first part is spaced apart from the upper surface of the lens module.

In the embodiment, a protective sheet for protecting the lens module of the camera module is provided. At this time, the protection sheet includes a protection member including a first portion including a first hole and a second portion extending downward from a side end of the first portion. Further, the length of the second portion in the direction of the optical axis is three or more times the length of the first portion in a direction perpendicular to the direction of the optical axis. In the embodiment, it is possible to ensure ease in a coupling process of inserting the protective member of the protective sheet into the lens barrel. For example, when the length of the second portion of the protection member in the optical axis direction is less than three times the length of the first portion in the direction perpendicular to the optical axis, fitting the second portion of the protection member to the lens barrel There is difficulty in the process, and reliability problems due to interference may occur accordingly. In addition, in the process of forcibly fitting the protection member into the lens barrel, a reliability problem such as bending of the optical film may occur. In addition, if the length of the second part in the direction of the optical axis is less than three times the length of the first part in the direction perpendicular to the optical axis, the side surface of the lens barrel cannot be entirely protected through the second part. , There is a problem that the protective sheet is biased to one side of the lens barrel rather than the correct position, and thus there is a possibility of causing tilt. Unlike this, in the embodiment, the interference fit problem is solved in the process of inserting the second part of the protection member into the lens barrel, and thus the reliability problem can be solved. In addition, in the embodiment, the protective sheet may be accurately coupled to the lens barrel in a proper position.

In addition, the embodiment includes an adhesive member disposed only on a portion of the upper surface of the first portion of the protection member. Accordingly, in the embodiment, attachment and detachment from the camera module can be easily prevented.

In addition, the embodiment includes a film member made of optical PET disposed on the adhesive member. Accordingly, in the embodiment, the upper region of the lens module may be protected using the film member. Furthermore, in the embodiment, an optical axis alignment or a PCB mounting process may be performed in a state where the protective sheet is attached to the lens module using the film member, thereby providing ease in the process. Furthermore, in the embodiment, it is possible to solve the problem of inflow of foreign substances generated in the optical axis alignment process or the mounting process into the lens module.

Also, in the embodiment, a ventilation portion is formed on the upper surface of the first portion of the protection member constituting the protection sheet. Accordingly, in the embodiment, gas generated in the process of attaching the film member to the protective member using an adhesive member may be discharged to the outside, and reliability problems such as tearing of the protective sheet due to the gas not being discharged can solve

In addition, in the embodiment, a groove is formed at the lower end of the second portion of the protection member constituting the protection sheet. The groove portion may not only provide ease in the process of inserting the protection sheet into the lens module, but may also open an area for the mounting process. Accordingly, in the embodiment, the protective sheet can be easily coupled to the lens module, and the mounting process can be easily performed while the protective sheet is coupled to the lens module.

1 is an exploded perspective view of a camera module according to an embodiment.
2 is a cross-sectional view of the camera module of FIG. 1 according to an embodiment.
3 is a perspective view of a protective sheet according to an embodiment.
4 is an exploded perspective view of a protective sheet according to an embodiment.
5 is a perspective view of a state in which a film member is removed from the protective sheet of FIG. 3;
6 is a plan view of the protection member of the protection sheet according to the embodiment.
7 is a side view of a protection member of a protection sheet according to an embodiment.
8 is a cross-sectional view of a protective member of a protective sheet according to an embodiment
9 is a view for explaining a protective sheet according to a comparative example.
FIG. 10 is a view for explaining problems of the protection sheet of the comparative example of FIG. 9 .
11 shows a state in which a protective sheet is coupled to a lens module according to an embodiment.
12 is a perspective view of a portable terminal according to an embodiment.
13 is a configuration diagram of the portable terminal shown in FIG. 12;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in a variety of different forms, and if it is within the scope of the technical idea of the present invention, one or more of the components among the embodiments can be selectively implemented. can be used by combining and substituting.

In addition, the terms (including technical and scientific terms) used in the embodiments of the present invention, unless explicitly specifically defined and described, are generally understood by those skilled in the art to which the present invention belongs. The member includes polycarbonate (PC). It can be interpreted as a meaning, and the meaning of commonly used terms, such as terms defined in a dictionary, can be interpreted in consideration of the contextual meaning of related technology.

Also, terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention. In this specification, the singular form may also include the plural form unless otherwise specified in the phrase, and when described as "at least one (or more than one) of A and (and) B and C", A, B, and C are combined. may include one or more of all possible combinations.

Also, terms such as first, second, A, B, (a), and (b) may be used to describe components of an embodiment of the present invention. These terms are only used to distinguish the component from other components, and the term is not limited to the nature, order, or order of the corresponding component. And, when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected to, combined with, or connected to the other component, but also with the component. It may also include the case of being 'connected', 'combined', or 'connected' due to another component between the other components.

In addition, when it is described as being formed or disposed on the "top (above) or bottom (bottom)" of each component, the top (top) or bottom (bottom) is not only a case where two components are in direct contact with each other, but also one A case in which another component above is formed or disposed between two components is also included. In addition, when expressed as "up (up) or down (down)", it may include the meaning of not only the upward direction but also the downward direction based on one component.

An optical axis direction used below may be defined as an optical axis direction of a lens coupled to a camera actuator and a camera module, and a vertical direction may be defined as a direction perpendicular to the optical axis.

The autofocus function used below is a function that automatically focuses on a subject by adjusting the distance to the image sensor by moving the lens in the direction of the optical axis according to the distance of the subject so that a clear image of the subject can be obtained on the image sensor. can be defined

Meanwhile, auto focus may correspond to auto focus (AF). In addition, CLAF (closed-loop auto focus) control is defined as real-time feedback control of the lens position by detecting the distance between the image sensor and the lens to improve the accuracy of focus adjustment. can do.

In addition, prior to the description of the embodiment of the invention, the first direction may mean the x-axis direction shown in the drawing, and the second direction may be a direction different from the first direction. For example, the second direction may mean a y-axis direction shown in the drawing as a direction perpendicular to the first direction. Also, the third direction may be a direction different from the first and second directions. For example, the third direction may refer to a z-axis direction shown in the drawing as a direction perpendicular to the first and second directions. Here, the third direction may mean an optical axis direction.

Hereinafter, the configuration of the camera module according to the present embodiment will be described with reference to the drawings.

1 shows an exploded perspective view of a camera module according to an embodiment, and FIG. 2 is a cross-sectional view of the camera module of FIG. 1 according to an embodiment.

1 and 2, the camera module 200 includes a lens 410 or a lens barrel 400, a lens driving device 100, a filter 610, a holder 600, and a circuit board 800. , a reinforcing material 900 , and an image sensor 810 . Here, the “camera module” may be replaced with “photographer” or “camera”, and the holder 600 may be replaced with a sensor base. Here, the lens 410 and the lens barrel 400 may be replaced with a "lens module" and expressed.

In addition, the camera module 200 may further include a blocking member 1500 disposed on the filter 610 .

Also, the camera module 200 may further include an adhesive member 612 .

In addition, the camera module 200 may further include a motion sensor 820, a controller 830, and a connector 840.

A lens or lens barrel 400 may be mounted on the bobbin 110 of the lens driving device 100 . The lens barrel 400 may accommodate the lens 410 therein. Also, a black coating layer (not shown) may be formed on the upper surface of the lens barrel 400 . At this time, a protective sheet 420 may be attached to the black coating layer on the upper surface of the lens barrel 400 . The protection sheet 420 will be described in more detail below.

The protective sheet 420 may protect the black coating layer on the upper surface of the lens barrel 400 . The protective sheet 420 may be removed from the lens barrel 400 when the camera module 300 is in use. The protection sheet 420 may protect the side surface of the lens barrel 400 while protecting the black coating layer on the upper surface of the lens barrel 400 . For example, the protective sheet 420 may cover an upper region of the lens barrel 400 and a side region of the lens barrel 400 .

The lens driving device 100 may drive the lens or the lens barrel 400 .

The camera module 200 may be any one of an auto focus (AF) camera module and an optical image stabilizer (OIS) camera module. A camera module for AF refers to one capable of performing only an auto focus function, and a camera module for OIS refers to one capable of performing an auto focus function and an OIS (Optical Image Stabilizer) function.

For example, the lens driving device 100 may be a lens driving device for AF or a lens driving device for OIS, where the meanings of "for AF" and "for OIS" are as described in the camera module for AF and the camera module for OIS. can be the same

For example, the lens driving device 100 of the camera module 200 may be a lens driving device for OIS.

The lens driving device 100 includes a housing 140, a bobbin 110 disposed in the housing 140 and for mounting a lens or lens barrel 400, a first coil 120 disposed in the bobbin 110, a housing The magnet 130 disposed on the 140 and facing the first coil 120, at least one upper elastic member (not shown) coupled to the upper part of the bobbin 110 and the upper part of the housing 140, the bobbin 110 ) and at least one lower elastic member (not shown) coupled to the lower part of the housing 140, the second coil 230 disposed under the bobbin 110 (or/and the housing 140), the second A circuit board 250 disposed below the coil 230 and a base 210 disposed below the circuit board 250 may be included.

In addition, the lens driving device 100 may further include a cover member 300 coupled to the base 210 and providing a space for accommodating elements of the lens driving device 100 together with the base 210. .

In addition, the lens driving device 100 may further include a support member (not shown) electrically connecting the circuit board 250 and the upper elastic member and supporting the housing 140 with respect to the base 210 . Each of the first coil 120 and the second coil 230 may be electrically connected to the circuit board 250 and may receive a driving signal (driving current) from the circuit board 250 .

For example, the upper elastic member may include a plurality of upper springs, the support member may include support members connected to the upper springs, and the first coil 120 may be connected to the circuit board through the upper springs and the support member. (250) and can be electrically connected. The circuit board 250 may include a plurality of terminals, and some of the plurality of terminals may be electrically connected to each of the first coil 120 and/or the second coil 230 .

The bobbin 110 and the lens or lens barrel 400 coupled thereto may be moved in the direction of the optical axis by the electromagnetic force generated by the interaction between the first coil 120 and the magnet 130, and thereby the bobbin 110 As the displacement in the optical axis direction is controlled, AF driving can be implemented.

In addition, the housing 140 may be moved in a direction perpendicular to the optical axis by the electromagnetic force generated by the interaction between the second coil 230 and the magnet 130, and thus hand shake correction or OIS driving may be implemented.

In addition, for AF feedback driving, the lens driving device 100 of the camera module 200 includes a sensing magnet (not shown) disposed on the bobbin 110 and an AF position sensor (eg, disposed on the housing 140). , a hall sensor (not shown) may be further included. In addition, the lens driving apparatus 100 may further include a circuit board (not shown) disposed on the housing or/and the base and on which the AF position sensor is disposed or mounted. In another embodiment, the AF position sensor may be disposed on the bobbin, and the sensing magnet may be disposed on the housing. In addition, the lens driving device 100 may further include a balancing magnet disposed on the bobbin 110 to correspond to the sensing magnet.

The AF position sensor may output an output signal according to a result of sensing the strength of the magnetic field of the sensing magnet according to the movement of the bobbin 100 . The AF position sensor may be electrically connected to the circuit board 250 through the upper elastic member (or lower elastic member) or/and the supporting member. The circuit board 250 may provide a driving signal to the AF position sensor, and an output of the AF position sensor may be transmitted to the circuit board 250 .

In another embodiment, the lens driving device 100 may be a lens driving device for AF, and the lens driving device for AF includes a housing, a bobbin disposed inside the housing, a coil disposed in the bobbin, and a magnet disposed in the housing. , at least one elastic member coupled to the bobbin and the housing, and a base disposed below the bobbin (or/and housing).

For example, the elastic member may include the above-described upper elastic member and lower elastic member.

A driving signal (eg, driving current) may be provided to the coil, and the bobbin may be moved in an optical axis direction by electromagnetic force generated by an interaction between the coil and the magnet. In another embodiment, the coil may be disposed in the housing and the magnet may be disposed in the bobbin.

In addition, for AF feedback driving, the AF lens driving device includes a sensing magnet disposed on the bobbin, an AF position sensor (eg, a hall sensor) disposed on the housing, and an AF position sensor disposed on the housing or And/or may further include a circuit board disposed or mounted on the base In another embodiment, the AF position sensor may be disposed on the bobbin and the sensing magnet may be disposed on the housing.

A camera module according to another embodiment may include a housing coupled to the lens or lens barrel 400 instead of the lens driving device 100 of FIG. 1 and fixed to the lens or lens barrel 400, and the housing may include a holder. It can be coupled or attached to the upper surface of (600). The housing attached or fixed to the holder 600 may not be moved, and the position of the housing may be fixed while attached to the holder 600 .

The circuit board may be electrically connected to the coil and the AF position sensor, a driving signal may be provided to each of the coil and the AF position sensor through the circuit board, and an output of the AF position sensor may be transmitted to the circuit board.

The holder 600 may be disposed below the base 210 of the lens driving device 100 .

The filter 610 is mounted on the holder 600, and the holder 600 may include a seating portion 500 on which the filter 610 is seated.

The adhesive member 612 may couple or attach the base 210 of the lens driving device 100 to the holder 600 . For example, the adhesive member 612 may be disposed between the lower surface of the base 210 and the upper surface of the holder 600, and may adhere both to each other.

The adhesive member 612 may serve to prevent foreign matter from entering the lens driving device 100 in addition to the above-described adhesive function. For example, the adhesive member 612 may be an epoxy, a thermosetting adhesive, or an ultraviolet curable adhesive.

The filter 610 may be disposed within the seating portion 500 of the holder 600 .

The seating portion 500 of the holder 600 may include a protrusion (not shown) protruding from the upper surface of the holder 600, but is not limited thereto. In another embodiment, the seating portion may be in the form of a recess, cavity, or hole recessed from the upper surface of the holder 600 .

A protrusion (not shown) of the mounting portion 500 may serve to prevent contact or collision of the lower end of the lens or lens barrel 400 with the filter 610 (or/and the blocking member 1500).

The protruding portion may protrude along the side of the filter 610 in the optical axis direction. For example, the protrusions may be disposed around the side of the filter 610 to wrap around the side of the filter 610 .

The inner side of the protrusion may be provided to face the side of the filter 610, and both may be spaced apart from each other. This is to secure a processing tolerance for easily mounting the filter 610 inside the mounting portion 500 of the holder 600 .

In addition, the upper surface of the protruding portion may be located higher than the upper surface 610 of the filter 610 in the optical axis direction. This means that when the lens or lens barrel 400 is mounted on the lens driving device 100 and moves in the direction of the optical axis or moves toward the filter 610 by an external impact, the lower end of the lens or lens barrel 400 This is to prevent direct collision with the filter 610.

The shape of the protrusion viewed from the top may match the shape of the filter 610, but is not limited thereto. In another embodiment, the shape of the protrusion may be similar to or different from the shape of the filter 610 .

The holder 600 may have an opening 501 formed at a portion where the filter 610 is mounted or disposed so that light passing through the filter 610 may be incident to the image sensor 810 .

For example, the opening 501 may pass through the holder 600 in the optical axis direction, and may be expressed as a “through hole” instead.

For example, the opening 501 may pass through the center of the holder 600 and may be provided in the seating portion 500 , and the area of the opening 501 may be smaller than that of the filter 610 .

The holder 600 is disposed on the circuit board 800 and may accommodate the filter 610 therein. The holder 600 may support the lens driving device 100 located on the upper side. A lower surface of the base 210 of the lens driving apparatus 100 may be disposed on an upper surface of the holder 600 .

For example, the lower surface of the base 210 of the lens driving apparatus 100 may contact the upper surface of the holder 600 and may be supported by the upper surface of the holder 600 .

For example, the filter 610 may be disposed within the seating portion 500 of the holder 600 .

The filter 610 may serve to block light of a specific frequency band from light passing through the lens barrel 400 from being incident to the image sensor 810 .

For example, the filter 610 may be an infrared cut filter, but is not limited thereto. For example, the filter 610 may be disposed parallel to an x-y plane perpendicular to the optical axis OA.

The filter 610 may be attached to the mounting portion 500 of the holder 600 by an adhesive (not shown) such as UV epoxy.

The circuit board 800 may be disposed under the holder 600 , and the holder 600 may be disposed on the upper surface of the circuit board 800 .

The holder 600 may be attached or fixed to the upper surface of the circuit board 800 by an adhesive member such as epoxy, thermosetting adhesive, or UV curable adhesive. In this case, the adhesive member may be disposed between the lower surface of the holder 600 and the upper surface of the circuit board 800 .

The circuit board 800 may have an opening 801 corresponding to the opening 501 of the holder 600 . The opening 801 of the circuit board 800 may be in the form of a through hole penetrating the circuit board 800 in an optical axis direction.

An image sensor 810 may be disposed in the opening 801 of the circuit board 800 .

The stiffener 900 may be disposed below the circuit board 800 and may include a protrusion 901 corresponding to the opening 801 of the circuit board 800 and for mounting the image sensor 810 thereon.

The protrusion 901 may protrude from one region of the upper surface of the stiffener 900 in the optical axis direction. The image sensor 810 may be disposed on the upper surface of the protrusion 901 and may be exposed through the opening 801 of the circuit board 800 .

The image sensor 810 disposed on the upper surface of the protrusion 901 of the stiffener 900 may be electrically connected to the circuit board 800 through a wire (not shown). For example, a wire (not shown) may connect a terminal (not shown) of the image sensor 810 and a terminal (not shown) of the circuit board 800 to each other.

The reinforcing material 900 is a plate-like member having a predetermined thickness and hardness, and can stably support the image sensor 810 and prevent damage to the image sensor due to external impact or contact.

In addition, the reinforcing material 900 may improve a heat dissipation effect of dissipating heat generated from the image sensor to the outside.

For example, the reinforcing material 900 may be formed of a metal material having high thermal conductivity, such as SUS or aluminum, but is not limited thereto. In another embodiment, the reinforcing material 900 may be formed of glass epoxy, plastic, or synthetic resin.

In addition, the reinforcing member 900 may serve as a ground for protecting the camera module from electrostatic discharge protection (ESD) by being electrically connected to the ground terminal of the circuit board 800 .

The image sensor 810 may be a part where light passing through the filter 610 is incident and an image including the light is formed.

The circuit board 800 may include various circuits, elements, and controllers to convert an image formed by the image sensor 810 into an electrical signal and transmit the converted electrical signal to an external device. A circuit pattern electrically connected to the image sensor and various elements may be formed on the circuit board 800 .

The holder 600 may be replaced with the first holder, and the circuit board 800 may be replaced with the second holder.

The image sensor 810 may receive an image included in light incident through the lens driving device 100 and convert the received image into an electrical signal.

The filter 610 and the image sensor 810 may be spaced apart from each other so as to face each other in the optical axis OA direction or in the first direction.

Also, the protrusion of the holder 600 may be disposed to face the filter 610 in the optical axis direction.

The blocking member 1500 may be disposed on an upper surface of the filter 610 . The blocking member 1500 may be expressed as a “masking unit” instead.

For example, the blocking member 1500 may be disposed on an edge area of the upper surface of the filter 610, and at least a portion of the light incident toward the edge area of the filter 610 passes through the lens or lens barrel 400. It may serve to block passage through the filter 610. For example, the blocking member 1500 may be coupled or attached to an upper surface of the filter 610 .

For example, the filter 610 may be formed in a quadrangular shape when viewed in the optical axis direction, and the blocking member 1500 may be formed symmetrically with respect to the filter 610 along each side of the upper surface of the filter 610 .

At this time, the blocking member 1500 may be formed to have a constant width on each side of the upper surface of the filter 610 .

The blocking member 1500 may be formed of an opaque material. For example, the blocking member 1500 may be provided with an opaque adhesive material applied to the filter 610 or may be provided in the form of a film attached to the filter 610 .

The filter 610 and the image sensor 810 may be disposed to face each other in the optical axis direction, and the blocking member 1500 may include terminals (not shown) and/or wires (not shown) disposed on the circuit board 800 in the optical axis direction. city) and at least part of it may overlap.

Wires (not shown) and terminals (not shown) may be formed of a conductive material such as gold, silver, copper, or a copper alloy, and the conductive material may have a property of reflecting light. Light passing through the filter 610 may be reflected by a terminal (not shown) and a wire (not shown) of the circuit board 800, and an instantaneous flash, that is, a flare phenomenon may occur due to such reflected light. This flare phenomenon may distort an image formed on the image sensor 810 or deteriorate image quality.

Since the blocking member 1500 is disposed to overlap at least a portion of a terminal (not shown) and/or a wire (not shown) in the optical axis direction, among the light passing through the lens or lens barrel 400, the terminal of the circuit board 800 (not shown), or / and the light directed to the wire (not shown) can be blocked to prevent the occurrence of the above-described flare phenomenon, thereby preventing the image formed on the image sensor 810 from being distorted or deteriorating in quality can do.

The motion sensor 820 may be mounted or disposed on the circuit board 800 and electrically connected to the controller 830 through a circuit pattern provided on the circuit board 800 .

The motion sensor 820 outputs rotational angular velocity information caused by the movement of the camera module 200 . The motion sensor 820 may be implemented as a 2-axis or 3-axis gyro sensor or an angular velocity sensor.

The controller 830 is mounted or disposed on the circuit board 800 .

The circuit board 800 may be electrically connected to the lens driving device 100 . For example, the circuit board 800 may be electrically connected to the circuit board 250 of the lens driving device 100 .

For example, a driving signal may be provided to each of the first coil 120 and the second coil 230 of the lens driving device 100 through the circuit board 800, and the AF position sensor (or OIS position sensor) A driving signal may be provided. Also, the output of the AF position sensor (or OIS position sensor) may be transmitted to the circuit board 800 .

The connector 840 is electrically connected to the circuit board 800 and may include a port to be electrically connected to an external device.

An adhesive member 1750 may be disposed between the lower surface of the image sensor 810 and the upper surface of the protrusion 901, and the image sensor 810 is attached or fixed to the upper surface of the protrusion 901 by the adhesive member 1750. It can be. The adhesive member 1750 may be an epoxy, a thermosetting adhesive, an ultraviolet curable adhesive, or an adhesive film, but is not limited thereto.

In addition, an adhesive member 1700 may be disposed between the lower surface of the circuit board 800 and the reinforcing member 900, and the circuit board 800 may be attached or fixed to the reinforcing member 900 by the adhesive member 1700. . For example, the adhesive member 1700 may be an epoxy, a thermosetting adhesive, an ultraviolet curable adhesive, or an adhesive film, but is not limited thereto.

An area of the upper surface of the protrusion 901 may be equal to or greater than an area of the lower surface of the image sensor 810 . For example, it is an image sensor, and in another embodiment, the edge of the lower surface of the image sensor 810 may be spaced apart from the edge of the upper surface of the protruding part 901 .

The height of the upper surface of the protrusion 901 of the reinforcing material 900 based on the lower surface of the reinforcing material 900 may be lower than the height of the upper surface of the circuit board 800 disposed on the reinforcing material 900 .

Meanwhile, a protective sheet 420 is disposed on the upper surface of the lens barrel 400 in the embodiment.

At this time, the protective sheet 420 may have a circular shape. For example, some components of the protection sheet 420 may have a donut shape, and other components of the protection sheet 420 may have a circular shape.

For example, some components of the protection sheet 420 may have a donut shape exposing the opening of the lens barrel 400 . For example, some components of the protection sheet 420 may expose the opening of the lens barrel 400 . For example, in some configurations of the protective sheet 420 , an area overlapping the lens 410 accommodated in the lens barrel 400 in the optical axis direction may be open. Accordingly, in the embodiment, it is possible to prevent the adhesive component of the protective sheet 420 from being left on the surface of the lens 410, thereby improving reliability. In addition, the remaining parts of the protective sheet 420 may be disposed to cover the opening of the lens barrel 400 . Accordingly, in the manufacturing process of the camera module of the embodiment, it is possible to prevent the lens barrel 400 or the lens 410 from being damaged.

Hereinafter, the protection sheet 420 will be described in more detail.

Figure 3 is a perspective view of the protective sheet of the embodiment, Figure 4 is an exploded perspective view of the protective sheet of the embodiment, Figure 5 is a perspective view of a state in which the film member is removed from the protective sheet of Figure 3, Figure 6 is a protective sheet of the embodiment A plan view of the protection member, FIG. 7 is a side view of the protection member of the protection sheet according to the embodiment, and FIG. 8 is a cross-sectional view of the protection member of the protection sheet according to the embodiment. Specifically, (a) of FIG. 6 is a plan view of the protection member viewed from above, and (b) of FIG. 6 is a plan view of the protection member viewed from the bottom. In addition, FIG. 7 (a) is a side view of the protection member viewed from a first side direction, and FIG. 7 (b) is a side view of the protection member viewed from a second side direction.

The protection sheet 420 of the embodiment may include a protection member 421 , an adhesive member 422 and a film member 423 .

The protection member 421 may be referred to as a protection unit that protects an upper surface (eg, a black coating layer) of the lens barrel 400 and a side surface of the lens barrel 400 . The film member 423 may be referred to as a cover member that protects an upper surface of the lens 410 accommodated in the lens barrel 400 . Also, the adhesive member 422 may be an adhesive layer for adhering the film member 423 on the protection member 421 .

In this case, the protection member 421, the adhesive member 422, and the film member 423 may be formed of a transparent material, but are not limited thereto. However, when the protection member 421, the adhesive member 422, and the film member 423 constituting the protection sheet 420 are formed of a transparent material, the lens barrel inside the protection sheet 420 from the outside ( 400) or the state of the lens 410 may be easily grasped. Accordingly, in the embodiment, even when the protection sheet 420 is disposed, the state of the lens barrel 400 can be grasped and defects can be sorted out.

The protection member 421 may be divided into a plurality of parts. The protective member 421 includes polycarbonate (PC).

For example, the protection member 421 may include a first part 421-1 and a second part 421-2.

The first part 421-1 may include a first hole 421-3. For example, the first part 421-1 may have a circular shape including the first hole 421-3. For example, the first part 421-1 may have a donut shape with an opening in the center. The first hole 421 - 3 may correspond to the opening of the lens barrel 400 . For example, the first hole 421 - 3 may overlap an opening formed in the lens barrel 400 in an optical axis direction. The diameter of the first hole 421 - 3 of the first part 421 - 1 may correspond to the diameter of the opening of the lens barrel 400 . The first part 421 - 1 may be referred to as an upper plate of the protection member 421 . For example, the first part 421 - 1 may also be referred to as a first protection member that protects the upper surface of the lens barrel 400 .

The protective member 421 of the embodiment includes a second portion 421-2. The second portion 421-2 of the protection member 421 may be formed to extend downward from an outer end of the first portion 421-1. The length of the second part 421 - 2 in the optical axis direction, the length in the vertical direction, or the length in the thickness direction of the second part 421 - 2 may correspond to the length of the lens barrel 400 in the optical axis direction. Accordingly, in the embodiment, the entire area of the side surface of the lens barrel 400 can be protected through the second part 421-2 of the protection member 421, and the lens barrel from various factors. (400) to prevent damage.

Meanwhile, a vent 421-4 may be formed on an upper surface of the first portion 421-1. For example, the ventilation part 421-4 may have a groove shape depressed downward in the first portion 421-1.

The ventilation portion 421-4 may be formed in the first portion 421-1 to have a depth L6 smaller than a length of the first portion 421-1 in the optical axis direction. For example, the ventilation part 421-4 may be formed in the shape of a groove or a recess in the first portion 421-1.

Alternatively, the ventilation portion 421-4 may be formed in the first portion 421-1 to have the same depth as the length of the first portion 421-1 in the optical axis direction. For example, the ventilation part 421-4 may be formed in the form of a hole penetrating the first portion 421-1. Accordingly, when the ventilation portion 421-4 is formed in a hole shape, an area overlapping the ventilation portion 421-4 in the optical axis direction of the upper surface of the second portion 421-2 may be exposed. .

In an embodiment, a plurality of ventilation units 421-4 may be formed at different locations of the first portion 421-1. For example, a plurality of ventilation units 421-4 may be formed facing each other based on the center C of the first hole 421-3.

For example, the ventilation unit 421-4 of the embodiment may include the first ventilation unit 421-41 and the second ventilation unit 421-42. The first ventilation part 421-41 and the second ventilation part 421-42 face each other based on the center C of the first hole 421-3 of the first part 421-1. can be placed. The vent 421-4 may be an air passage. For example, the vent 421-4 may be an air passage connecting an inner end of the first portion 421-1 and an outer end of the first portion 421-1. Accordingly, in the embodiment, the first hole 421-3 of the first part 421-1 and the outer region (eg, the outer side of the protection member 421) are provided through the ventilation part 421-4. area) can be communicated with. Accordingly, in the embodiment, the gas generated in the process of attaching the adhesive member 422 on the protective member 421 is discharged to the outside, resulting in reliability problems (eg, poor adhesion or poor adhesion of the adhesive member). The problem of overflowing into the inside of the lens barrel 400) can be solved. In addition, in the embodiment, the adhesive member 422 and the film member 423 are removed from the protective member 421 in the process of removing the protective sheet 420 later by using the vent 421-4. It can be easily separated.

The ventilation part 421-4 may have the same width as one end adjacent to the first hole 421-3 and the other end adjacent to the outer region. Alternatively, the ventilation part 421 - 4 may have a different width from one end to another. For example, the ventilation portion 421-4 may gradually change in width from one end to the other end. Accordingly, in the embodiment, the gas discharge path may be induced from the one end to the other end, thereby improving physical reliability. In addition, in the embodiment, it is possible to prevent foreign matter introduced to the outside from being transferred to the inside of the first hole 421-3 of the protection member 421 through a change in the width of the ventilation part 421-4. and thus reliability can be improved.

The first portion 421-1 may have a length in a horizontal direction or a first length L1 in a direction perpendicular to an optical axis. The first length L1 may correspond to a length of the black coating layer of the lens barrel 400 in a horizontal direction or a length in a direction perpendicular to an optical axis, but is not limited thereto. For example, the first length L1 may mean the width of the first portion 421-1.

In addition, the first portion 421-1 may have a third length L3 in the optical axis direction or the vertical direction. The third length L3 may correspond to the thickness of the first portion 421-1.

And, in the embodiment, in determining the first length L1 and the third length L3 of the first portion 421-1, the length of the second portion 421-2 is considered. . This will be described in detail below.

The second portion 421-2 of the protection member 421 may extend downward from a lower surface of an outer end of the first portion 421-1. The second portion 421 - 2 of the protection member 421 may have a second length L2 in an optical axis direction or a vertical direction.

At this time, the second length L2 of the second part 421-2 of the protection member 421 is equal to the first length L1 of the first part 421-1 of the protection member 421. It may be at least three times greater. For example, the second length L2 of the second part 421-2 of the protection member 421 is the first length L1 of the first part 421-1 of the protection member 421. ) may be at least five times greater than For example, the second length L2 of the second part 421-2 of the protection member 421 is the first length L1 of the first part 421-1 of the protection member 421. ) may be at least 10 times greater than The second length L2 of the second portion 421-2 of the protection member 421 is at least 30 of the first length L1 of the first portion 421-1 of the protection member 421. may be less than double. For example, the second length L2 of the second part 421-2 of the protection member 421 is the first length L1 of the first part 421-1 of the protection member 421. ) at least 25 times or less. The second length L2 of the second portion 421-2 of the protection member 421 is at least 22 of the first length L1 of the first portion 421-1 of the protection member 421. may be less than double.

Accordingly, in the embodiment, it is possible to secure ease in a coupling process of inserting the protective member 421 of the protective sheet 420 into the lens barrel 400 . For example, the second length L2 of the second part 421-2 of the protection member 421 is the first length L1 of the first part 421-1 of the protection member 421. ), there is difficulty in a process of fitting the second part of the protection member into the lens barrel, and thus reliability problems may occur due to interference. For example, the second length L2 of the second part 421-2 of the protection member 421 is the first length L1 of the first part 421-1 of the protection member 421. ), there is a problem that the protective member must be forcibly inserted into the lens barrel, and thus reliability problems such as warping of the optical film constituting the protective member 421 may occur.

In addition, the second length L2 of the second part 421-2 of the protection member 421 is equal to the first length L1 of the first part 421-1 of the protection member 421. If it is less than 3 times, a problem arises in that the side surface of the lens barrel cannot be entirely protected through the second part. In addition, accordingly, the second length L2 of the second part 421-2 of the protection member 421 is the first length L1 of the first part 421-1 of the protection member 421. ), there is a problem that the protective sheet is biased to one side of the lens barrel rather than the correct position, and there is a possibility of causing tilt.

Also, in the embodiment, the inner diameter of the second portion 421-2 is larger than the outer diameter of the lens barrel 400. Accordingly, in the embodiment, in the process of inserting the second portion 421-2 of the protection member 421 into the lens barrel 400, the problem of interference is solved, and the resulting reliability problem is solved.

Meanwhile, the second portion 421 - 2 of the protection member 421 may have a fourth length L4 in a horizontal direction or a direction perpendicular to the optical axis direction. In this case, the fourth length L4 may mean the thickness of the second portion 421 - 2 of the protection member 421 . Also, the thickness of the first portion 421-1 of the protection member 421 may be different from that of the second portion 421-2. For example, the thickness of the first portion 421-1 of the protection member 421 may be smaller than that of the second portion 421-2. For example, the thickness of the first portion 421-1 of the protection member 421 may satisfy a range of 50% to 98% of the thickness of the second portion 421-2. For example, the thickness of the first portion 421-1 of the protection member 421 may satisfy a range of 60% to 95% of the thickness of the second portion 421-2. For example, the thickness of the first portion 421-1 of the protection member 421 may satisfy a range of 65% to 90% of the thickness of the second portion 421-2. When the thickness of the first portion 421-1 of the protection member 421 is less than 50% of the thickness of the second portion 421-2, the second portion 421-2 of the protection member 421 ) into the lens barrel 400, problems such as tearing of the first part 421-1 may occur. In addition, when the thickness of the first portion 421-1 of the protection member 421 is greater than 98% of the thickness of the second portion 421-2, the elasticity of the protection member 421 is reduced, Accordingly, difficulties may occur in the process of fitting the second part 421 - 2 of the protection member 421 to the lens barrel 400 .

Meanwhile, the second portion 421-2 of the protection member 421 includes a groove portion 421-5. For example, the second portion 421-2 of the protection member 421 may include a groove portion 421-5 connected from the lowermost end of the second portion 421-2. The groove 421 - 5 may be formed by opening a lowermost part of the second part 421 - 2 of the protection member 421 . A plurality of grooves 421 - 5 may be formed in the second portion 421 - 2 of the protection member 421 . For example, the groove portion 421-5 may include a first groove portion 421-51 formed at a first lowermost end of the second portion 421-2 of the protection member 421, and the second portion 421-51. 2) may include a second groove portion 421-52 formed at the second lowermost end. Also, the first groove portion 421-51 and the second groove portion 421-52 may be disposed facing each other with respect to the center C.

The groove 421-5 may have a predetermined depth L5 at the lowermost end of the second portion 421-2 of the protection member 421. In this case, the depth L5 of the groove portion 421-5 may be smaller than 60% of the second length L2 of the second portion 421-2. For example, the depth L5 of the groove portion 421-5 may be smaller than 50% of the second length L2 of the second portion 421-2. For example, the depth L5 of the groove portion 421-5 may be smaller than 40% of the second length L2 of the second portion 421-2. Here, when the depth L5 of the groove portion 421-5 is greater than 60% of the second length L2 of the second portion 421-2, the protective member ( 421), a reliability problem such as tearing may occur in the portion where the groove 421-5 is formed.

The groove 421 - 5 may provide ease in the process of inserting the protective sheet 420 into the lens barrel 400 and removing the protective member 421 from the lens barrel 400 . . In addition, the groove 421 - 5 may expose a region on the side of the lens barrel 400 where a bonding process (eg, a soldering process of a substrate) is to be performed.

In this case, the groove part 421-5 may not overlap with the ventilation part 421-4 in a vertical direction or an optical axis direction. For example, the uppermost end of the second part 421-2 of the protection member 421 exposed through the ventilation part 421-4 overlaps the lowermost end where the groove part 421-5 is formed in the optical axis direction. It may not be.

For example, a first imaginary straight line connecting the plurality of ventilation parts 421-4 with respect to the center C is the plurality of groove parts 421-5 with respect to the center C. may intersect each other with respect to a second virtual straight line connecting them to each other and a plane. For example, when viewed from a plane, the imaginary first straight line and the imaginary second straight line may have a "+" or "X" shape.

Accordingly, in the embodiment, the groove part 421-5 and the ventilation part 421-4 are arranged in an area where they do not overlap each other in the optical axis direction, and the groove part 421-5 and the ventilation part 421-4 are disposed in an area where they do not overlap each other. By 4), it is possible to solve the problem that the stiffness of the protection member 421 is lowered in a specific area.

Meanwhile, an adhesive member 422 is disposed on the protection member 421 . The adhesive member 422 may be disposed on an upper surface of the first portion 421 - 1 of the protection member 421 . In this case, the adhesive member 422 may have a donut shape. For example, the adhesive member 422 may include a second hole 422-1 corresponding to the first hole 421-3 of the first portion 421-1 of the protection member 421. can In this case, the diameter of the second hole 422-1 may not be smaller than the diameter of the first hole 421-3. Preferably, the diameter of the second hole 422-1 may be the same as that of the first hole 421-3 of the first part 421-1. Alternatively, the diameter of the second part 421-2 may be greater than the diameter of the first hole 421-3 of the first part 421-1. Accordingly, in the embodiment, while preventing the adhesive component constituting the adhesive member 422 from penetrating into the first hole 421-3 of the first portion 421-1, the first hole 421-3 A component of the lens module exposed through 3) may be prevented from contacting the adhesive member 422 . Accordingly, in the embodiment, it is possible to solve the problem that the adhesive component of the adhesive member 422 remains on one component of the lens module.

Meanwhile, the outer diameter of the first portion 421 - 1 of the protection member 421 may be greater than the outer diameter of the adhesive member 422 . Accordingly, in a state in which the adhesive member 422 is disposed on the first portion 421-1 of the protection member 421, a portion of the upper surface of the first portion 421-1 is exposed to the adhesive member. (422) may not be contacted. For example, the upper surface of the first portion 421-1 of the protection member 421 may include a 1-1 portion contacting the lower surface of the adhesive member 422, and a second portion other than the 1-1 portion. May contain 1-2 parts. For example, the adhesive member 422 may not be disposed on the first-second portion. Accordingly, the first-second part of the first part 421-1 of the protection member 421 may be disposed directly facing the film member 423 in the optical axis direction.

A film member 423 may be disposed on the adhesive member 422 . The film member 423 may be optical polyethylene terephthalate (PET). The film member 423 may be a transparent and flat film. The film member 423 directs light toward the front surface through refraction and reflection of light, thereby minimizing wasted light. To this end, the film member 423 may be optical PET having high light transmittance. That is, since the protective sheet 420 applied to the camera module can transmit light through the film member 423, the protective sheet 420 can be separated from the camera module even during an axial alignment (AA) process. no need.

In the embodiment, a protective sheet for protecting the lens module of the camera module is provided. At this time, the protection sheet includes a protection member including a first portion including a first hole and a second portion extending downward from a side end of the first portion. Further, the length of the second portion in the direction of the optical axis is three or more times the length of the first portion in a direction perpendicular to the direction of the optical axis. In the embodiment, it is possible to ensure ease in a coupling process of inserting the protective member of the protective sheet into the lens barrel. For example, when the length of the second portion of the protection member in the optical axis direction is less than three times the length of the first portion in the direction perpendicular to the optical axis, fitting the second portion of the protection member to the lens barrel There is difficulty in the process, and reliability problems due to interference may occur accordingly. In addition, in the process of forcibly fitting the protection member into the lens barrel, a reliability problem such as bending of the optical film may occur. In addition, if the length of the second part in the direction of the optical axis is less than three times the length of the first part in the direction perpendicular to the optical axis, the side surface of the lens barrel cannot be entirely protected through the second part. , There is a problem that the protective sheet is biased to one side of the lens barrel rather than the correct position, and thus there is a possibility of causing tilt. Unlike this, in the embodiment, the interference fit problem is solved in the process of inserting the second part of the protection member into the lens barrel, and thus the reliability problem can be solved. In addition, in the embodiment, the protective sheet may be accurately coupled to the lens barrel in a proper position.

In addition, the embodiment includes an adhesive member disposed only on a portion of the upper surface of the first portion of the protection member. Accordingly, in the embodiment, attachment and detachment from the camera module can be easily prevented.

In addition, the embodiment includes a film member made of optical PET disposed on the adhesive member. Accordingly, in the embodiment, the upper region of the lens module may be protected using the film member. Furthermore, in the embodiment, an optical axis alignment or a PCB mounting process may be performed in a state where the protective sheet is attached to the lens module using the film member, thereby providing ease in the process. Furthermore, in the embodiment, it is possible to solve the problem of inflow of foreign substances generated in the optical axis alignment process or the mounting process into the lens module.

Also, in the embodiment, a ventilation portion is formed on the upper surface of the first portion of the protection member constituting the protection sheet. Accordingly, in the embodiment, gas generated in the process of attaching the film member to the protective member using an adhesive member may be discharged to the outside, and reliability problems such as tearing of the protective sheet due to the gas not being discharged can solve

In addition, in the embodiment, a groove is formed at the lower end of the second portion of the protection member constituting the protection sheet. The groove portion may not only provide ease in the process of inserting the protection sheet into the lens module, but may also open an area for the mounting process. Accordingly, in the embodiment, the protective sheet can be easily coupled to the lens module, and the mounting process can be easily performed while the protective sheet is coupled to the lens module.

A brief description of the assembly method of the camera module according to the embodiment is as follows.

The method of assembling the camera module of the embodiment includes coupling the protection sheet 420 to the lens module (eg, lens barrel) of the camera module, aligning the optical axis between the lens module of the camera module and the image sensor to form the camera module. Mounting on a substrate and separating the protection sheet 420 coupled to the camera module may be included.

At this time, the assembly process of the camera module in the present application may include an optical axis alignment process (AA, Axial Alignment) and a PCB mounting process (IMT, Insert Mount Technology). The optical axis alignment process refers to a process of matching optical axes between lenses accommodated in a lens module or optical axes between a lens and an image sensor. The PCB mounting process refers to a process of inserting and soldering leads of components to be mounted into holes of a PCB board.

When protecting the lens with a conventional protective tape, the light transmittance of the ordinary protective tape is low, so the ordinary protective tape was separated from the lens in the optical axis alignment process step. As the phosphor film member 423 is disposed, the optical axis alignment process may proceed with the protective sheet 420 coupled thereto. That is, as the number of steps in the assembly process that can be performed while the protective sheet 420 is coupled to the camera module increases, it is possible to more effectively prevent foreign substances on the lens.

9 is a view for explaining a protective sheet according to a comparative example, FIG. 10 is a view for explaining problems of the protective sheet of the comparative example of FIG. 9, and FIG. show status

Referring to FIGS. 9 and 10 , in the comparative example, the lens module 400a is protected using the first and second parts of the protection sheet 420a. At this time, the protective sheet in Comparative Example has a length l1 of the first part in the horizontal direction and a length l4 of the second part in the direction of the optical axis. At this time, the length l4 of the second portion in the optical axis direction in the comparative example was less than three times the length l1 of the first portion in the horizontal direction.

Accordingly, in the comparative example, in a state in which the protective sheet 420a is fitted to the lens module 400a, as shown in part A of FIG. A reliability problem has occurred.

In addition, in the comparative example, in a state in which the protective sheet 420a is fitted to the lens module 400a, as shown in part B of FIG. 10(b), the side surface of the lens barrel is not entirely protected through the second part. problems arise that cannot be In addition, in the comparative example, there is a problem in that the protective sheet is biased to one side of the lens barrel rather than in the correct position, and thus, there is a possibility of causing tilt.

Unlike this, referring to FIG. 11 , in the embodiment, the protection sheet 420 is disposed to enclose the entire side surface of the lens module, and thus, the same problem as in the comparative example can be solved.

Furthermore, in a state in which the protective sheet 420 is fitted and coupled to the lens module in the embodiment, between the inner surface of the second part 421-2 of the protective member 421 and the outer surface of the lens module, a first An air gap AG1 may be formed. This is because the interior angle between the lower surface of the first portion 421-1 and the inner surface of the second portion 421-2 has an angle greater than 89 degrees. Furthermore, the first air gap AG1 may be because the inner diameter of the second portion 421-2 has a greater value than the outer diameter of the lens module. That is, in a state in which the protection sheet 420 is fitted into the lens module, only a portion of the lowermost inner surface of the second part 421-2 of the protection member 421 may come into contact with the outer surface of the lens module. , the first air gap AG1 may be formed in other areas except for this area.

Also, in an embodiment, the second length L2 of the second portion 421-2 of the protection member 421 of the protection sheet 420 may be greater than the height of the lens barrel 400. Accordingly, in the embodiment, in a state in which the protective sheet 420 is coupled to the lens module, a second layer is provided between the lower surface of the first portion 421-1 of the protective member 421 and the upper surface of the lens module. An air gap AG2 may be formed.

As described above, in the embodiment, it is possible to prevent damage to the side surface or upper surface of the lens module by the protective sheet 420 through the first air gap AG1 and the second air gap AG2, and reliability accordingly. can improve

12 is a perspective view of a portable terminal 200A according to an embodiment, and FIG. 13 is a configuration diagram of the portable terminal shown in FIG. 12

12 and 13, a portable terminal (200A, hereinafter referred to as a “terminal”) includes a body 850, a wireless communication unit 710, an A/V input unit 720, a sensing unit 740, an input/output unit, It may include an output unit 750, a memory unit 760, an interface unit 770, a control unit 780, and a power supply unit 790.

The body 850 shown in FIG. 12 is in the form of a bar, but is not limited thereto, and is a slide type, folder type, or swing type in which two or more sub-bodies are coupled to be relatively movable. , and may have various structures such as a swivel type.

The body 850 may include a case (casing, housing, cover, etc.) constituting an external appearance. For example, the body 850 may be divided into a front case 851 and a rear case 852 . Various electronic components of the terminal may be embedded in the space formed between the front case 851 and the rear case 852 .

The wireless communication unit 710 may include one or more modules enabling wireless communication between the terminal 200A and a wireless communication system or between the terminal 200A and a network in which the terminal 200A is located. For example, the wireless communication unit 710 may include a broadcast reception module 711, a mobile communication module 712, a wireless Internet module 713, a short-distance communication module 714, and a location information module 715. there is.

An audio/video (A/V) input unit 720 is for inputting an audio signal or a video signal, and may include a camera 721 and a microphone 722.

The camera 721 may include a camera module according to the embodiment shown in FIG. 1 .

The sensing unit 740 detects the current state of the terminal 200A, such as the open/closed state of the terminal 200A, the location of the terminal 200A, whether or not there is a user contact, the direction of the terminal 200A, and the acceleration/deceleration of the terminal 200A. By sensing, a sensing signal for controlling the operation of the terminal 200A may be generated. For example, when the terminal 200A is in the form of a slide phone, whether the slide phone is opened or closed may be sensed. In addition, it is responsible for sensing functions related to whether or not the power supply unit 790 supplies power and whether or not the interface unit 770 is connected to an external device.

The input/output unit 750 is for generating input or output related to sight, hearing, or touch. The input/output unit 750 may generate input data for controlling the operation of the terminal 200A, and may also display information processed by the terminal 200A.

The input/output unit 750 may include a keypad unit 730, a display module 751, a sound output module 752, and a touch screen panel 753. The keypad unit 730 may generate input data by keypad input.

The display module 751 may include a plurality of pixels whose colors change according to electrical signals. For example, the display module 751 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a 3D At least one of 3D displays may be included.

The audio output module 752 outputs audio data received from the wireless communication unit 710 in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, or a broadcast reception mode, or stored in the memory unit 760. Audio data can be output.

The touch screen panel 753 may convert a change in capacitance caused by a user's touch to a specific area of the touch screen into an electrical input signal.

The memory unit 760 may store programs for processing and control of the control unit 780, and may store input/output data (eg, phone book, messages, audio, still images, photos, videos, etc.) can be temporarily stored. For example, the memory unit 760 may store an image captured by the camera 721, for example, a photo or video.

The interface unit 770 serves as a passage through which an external device connected to the terminal 200A is connected. The interface unit 770 receives data from an external device or receives power and transmits it to each component inside the terminal 200A, or transmits data inside the terminal 200A to an external device. For example, the interface unit 770 may include a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port connecting a device having an identification module, an audio I/O (Input/ Output) port, video I/O (Input/Output) port, and earphone port.

The controller 780 may control overall operations of the terminal 200A. For example, the controller 780 may perform related control and processing for voice calls, data communications, video calls, and the like.

The controller 780 may include a multimedia module 781 for playing multimedia. The multimedia module 781 may be implemented within the control unit 180 or may be implemented separately from the control unit 780.

The controller 780 may perform a pattern recognition process capable of recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 790 may receive external power or internal power under the control of the control unit 780 to supply power necessary for the operation of each component.

In the embodiment, a protective sheet for protecting the lens module of the camera module is provided. At this time, the protection sheet includes a protection member including a first portion including a first hole and a second portion extending downward from a side end of the first portion. Further, the length of the second portion in the direction of the optical axis is three or more times the length of the first portion in a direction perpendicular to the direction of the optical axis. In the embodiment, it is possible to ensure ease in a coupling process of inserting the protective member of the protective sheet into the lens barrel. For example, when the length of the second portion of the protection member in the optical axis direction is less than three times the length of the first portion in the direction perpendicular to the optical axis, fitting the second portion of the protection member to the lens barrel There is difficulty in the process, and reliability problems due to interference may occur accordingly. In addition, in the process of forcibly fitting the protection member into the lens barrel, a reliability problem such as bending of the optical film may occur. In addition, if the length of the second part in the direction of the optical axis is less than three times the length of the first part in the direction perpendicular to the optical axis, the side surface of the lens barrel cannot be entirely protected through the second part. , There is a problem that the protective sheet is biased to one side of the lens barrel rather than the correct position, and thus there is a possibility of causing tilt. Unlike this, in the embodiment, the interference fit problem is solved in the process of inserting the second part of the protection member into the lens barrel, and thus the reliability problem can be solved. In addition, in the embodiment, the protective sheet may be accurately coupled to the lens barrel in a proper position.

In addition, the embodiment includes an adhesive member disposed only on a portion of the upper surface of the first portion of the protection member. Accordingly, in the embodiment, attachment and detachment from the camera module can be easily prevented.

In addition, the embodiment includes a film member made of optical PET disposed on the adhesive member. Accordingly, in the embodiment, the upper region of the lens module may be protected using the film member. Furthermore, in the embodiment, an optical axis alignment or a PCB mounting process may be performed in a state where the protective sheet is attached to the lens module using the film member, thereby providing ease in the process. Furthermore, in the embodiment, it is possible to solve the problem of inflow of foreign substances generated in the optical axis alignment process or the mounting process into the lens module.

Also, in the embodiment, a ventilation portion is formed on the upper surface of the first portion of the protection member constituting the protection sheet. Accordingly, in the embodiment, gas generated in the process of attaching the film member to the protective member using an adhesive member may be discharged to the outside, and reliability problems such as tearing of the protective sheet due to the gas not being discharged can solve

In addition, in the embodiment, a groove is formed at the lower end of the second portion of the protection member constituting the protection sheet. The groove portion may not only provide ease in the process of inserting the protection sheet into the lens module, but may also open an area for the mounting process. Accordingly, in the embodiment, the protective sheet can be easily coupled to the lens module, and the mounting process can be easily performed while the protective sheet is coupled to the lens module.

Features, structures, effects, etc. described in the embodiments above are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified with respect to other embodiments by a person having ordinary knowledge in the field to which the embodiments belong. Therefore, contents related to these combinations and variations should be construed as being included in the scope of the present invention.

Claims (15)

a protective member including a first portion including a first hole and a second portion extending downward from a side end of the first portion; and
a film member disposed on an upper surface of the first portion of the protection member and covering the first hole;
The first length in the horizontal direction of the first part,
different from the second length in the vertical direction of the second part,
The second length is three times or more than the first length,
protective sheet. According to claim 1,
The second length,
Having at least 5 times the first length,
protective sheet. According to claim 1,
The first part of the protection member,
Including at least one ventilation part connected to the first hole,
protective sheet. According to claim 3,
The ventilation part,
a first ventilation groove formed in a first region of the first portion;
A second ventilation groove formed in a second region of the first portion,
The first area and the second area,
facing each other based on the center of the first hole,
protective sheet. According to claim 3,
The ventilation part,
a first ventilation hole penetrating the first region of the first portion and exposing a first uppermost portion of the second portion;
a second ventilation hole penetrating the second region of the first part and exposing a second uppermost part of the second part;
The first area and the second area,
facing each other based on the center of the first hole,
protective sheet. According to claim 1,
An adhesive member disposed between the first portion of the protection member and the film member and including a second hole corresponding to the first hole,
protective sheet. According to claim 6,
The diameter of the second hole of the adhesive member,
greater than the diameter of the first hole of the first part,
protective sheet. According to claim 6,
The outer diameter of the adhesive member is,
smaller than the outer diameter of the first part,
protective sheet. According to claim 7 or 8,
The upper surface of the first part,
A 1-1 portion in contact with the lower surface of the adhesive member;
Including a first-second part non-contact with the adhesive member,
protective sheet. According to claim 1,
The shape of the first hole of the first part and the shape of the film member are circular,
The center of the first hole of the first part is aligned on the same vertical line as the center of the film member,
The diameter of the first hole of the first part,
Same as the diameter of the film member,
protective sheet. According to claim 1,
The thickness of the first part is smaller than the thickness of the second part,
The thickness of the first part,
a third length in the vertical direction of the first portion;
The thickness of the second part,
The fourth length in the horizontal direction of the second part,
protective sheet. According to claim 3,
The second part of the protection member includes a groove connected from the lowermost end of the second part,
protective sheet. According to claim 12,
The groove part,
A first groove portion connected to the first lowermost end of the second portion;
Including a second groove connected to the second lowermost end facing the first lowermost end of the second part in a horizontal direction,
protective sheet. According to claim 12,
The groove part,
It does not overlap with the ventilation part in the optical axis direction or in the vertical direction,
protective sheet. A camera module including a lens module;
a protection member including a first portion including a first hole exposing a portion of an upper surface of the lens module and a second portion extending downward from a side end of the first portion and disposed on a side surface of the lens module; and
a film member disposed on an upper surface of the first portion of the protection member and covering the first hole;
A first length of the first portion in a horizontal direction is different from a second length of the second portion in a vertical direction;
The second length is three or more times the first length and the interior angle between the lower surface of the first portion of the protection member and the inner surface of the second portion is greater than 89 degrees,
When the protection sheet is coupled to the lens module, at least a part of an inner surface of the second part is spaced apart from an outer surface of the lens module;
In a state in which the protective sheet is coupled to the lens module, the lower surface of the first part is spaced apart from the upper surface of the lens module.
camera module.

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