KR102531129B1 - Lens driving apparatus, and camera module and mobile device including the same - Google Patents

Abstract

One embodiment of the camera module, the lens driving device is provided with a lower base; a first holder to which the base is coupled and to which a filter is mounted; an image sensor coupled to the lower portion of the first holder; and a second holder coupled to the first holder and surrounding the image sensor, wherein the first holder and the second holder may be coupled to and electrically connected to each other by a conductive adhesive.

Description

Camera module and portable device including the same {Lens driving apparatus, and camera module and mobile device including the same}

The embodiment relates to a camera module and a portable device including the same.

The contents described in this part merely provide background information on the embodiments and do not constitute prior art.

A cell phone or smart phone equipped with a camera module that performs a function of capturing a subject and storing it as an image or video is being developed. In general, a camera module may include a lens, an image sensor module, and a lens driving device for adjusting a distance between the lens and the image sensor module.

Portable devices such as mobile phones, smart phones, tablet PCs, and laptops have built-in micro-camera modules. The lens driving device may perform auto focusing in which focal lengths of the lenses are aligned by adjusting a distance between the image sensor and the lens.

In addition, the camera module may shake slightly depending on the user's hand shake while shooting the subject. A lens with an Optical Image Stabilizer (OIS) function added to compensate for image or video distortion caused by the user's hand shake. Drives are being developed.

The embodiment relates to a camera module having a slim structure as a whole and a portable device including the same.

The technical problem to be achieved by the embodiment is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

One embodiment of the camera module, the lens driving device is provided with a lower base; a first holder to which the base is coupled and to which a filter is mounted; an image sensor coupled to the lower portion of the first holder; and a second holder coupled to the first holder and surrounding the image sensor, wherein the first holder and the second holder may be coupled to and electrically connected to each other by a conductive adhesive.

The lens driving device includes a bobbin installed to move in a first direction; a first coil installed on an outer circumferential surface of the bobbin; a housing in which the bobbin is installed; a first magnet coupled to the housing; an upper elastic member provided on an upper side of the bobbin and supporting the bobbin; a lower elastic member provided below the bobbin and supporting the bobbin; The base disposed under the bobbin; And it may include a printed circuit board seated on the base.

The conductive adhesive may be provided as an anisotropic conductive film (ACF).

The first holder and the image sensor may be coupled and electrically connected by a flip chip process.

The first holder and the image sensor may be coupled to each other and electrically connected by a conductive adhesive.

One embodiment of the camera module may further include a reinforcing member coupled to the lower surface of the second holder.

The image sensor may have a print terminal portion to which the conductive adhesive is adhered and coupled to and electrically connected to the first holder.

The second holder may include a connection board for electrical connection with an external device.

The filter may be provided as an infrared cut filter or a blue filter.

The second holder may have a hollow portion, and the image sensor may be accommodated in the hollow portion.

One embodiment of the camera module may further include a reinforcing material disposed under the second holder.

The lens driving device may include a support member disposed on a side surface of the housing and supporting movement of the housing in a second direction and/or a third direction; and a second coil disposed to face the first magnet.

Another embodiment of the camera module is a lens barrel in which at least one lens is installed; a bobbin accommodating the lens barrel; a cover member accommodating the bobbin; a first holder disposed under the bobbin and to which a filter is mounted; an image sensor coupled to the lower portion of the first holder and equipped with a sensing unit disposed to face the filter in a first direction; and a second holder coupled to the first holder and surrounding the image sensor, wherein the first holder and the second holder are coupled to and electrically connected to each other by a conductive adhesive, and the image sensor is connected to the second holder. It may be accommodated in a hollow part formed in the holder, and a reinforcing material closing the hollow part may be provided on a lower surface of the second holder.

Another embodiment of the camera module is a lens driving device provided with a base at the bottom; a first holder to which the base is coupled and to which a filter is mounted; an image sensor coupled to the lower portion of the first holder and equipped with a sensing unit disposed to face the filter in a first direction; and a second holder coupled to the first holder and surrounding the image sensor, wherein the first holder and the second holder are coupled to and electrically connected to each other by a conductive adhesive, and the image sensor is connected to the second holder. It may be accommodated in a hollow part formed in the holder, and a reinforcing material closing the hollow part may be provided on a lower surface of the second holder.

One embodiment of a portable device includes a display module including a plurality of pixels whose color is changed by an electrical signal; The camera module converts the image incident through the lens into an electrical signal; and a control unit controlling operations of the display module and the camera module.

In the embodiment, when combining and electrically connecting each holder using an ACF, unlike the SMT process, since a separate wire and solder are not used, the space occupied by the wire and solder can be reduced, and thus the camera module It is possible to reduce the length of the first direction as a whole.

In addition, in the case of using ACF, since only heating sufficient to reach the melting temperature of the adhesive resin, which is much lower than the melting temperature of solder, excessive heat is not applied to each of the holders, and therefore, each holder provided as a substrate The occurrence of thermal damage can be significantly reduced.

In addition, due to the structure in which the image sensor is accommodated in the hollow part, a separate space in which the image sensor is disposed in the camera module is not required, and thus, the length of the camera module in the first direction can be reduced as a whole. Accordingly, the camera module may have a slim structure as a whole.

1 is a perspective view illustrating a camera module according to an exemplary embodiment.
2 is an exploded perspective view illustrating a lens driving device according to an exemplary embodiment.
3 is a perspective view illustrating a base, a first holder, and a second holder according to an embodiment.
4 is a schematic side cross-sectional view of a camera module according to an embodiment.
5 is a schematic plan view of an image sensor according to an exemplary embodiment.
6 is a schematic plan view of a second holder, a connecting substrate, and a reinforcing member according to an exemplary embodiment.
7 is a perspective view illustrating a portable device according to an exemplary embodiment.
FIG. 8 is a configuration diagram of the portable device shown in FIG. 7 .

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Embodiments can apply various changes and can have various forms, and specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the embodiments to a specific form disclosed, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of the embodiments.

Terms such as "first" and "second" may be used to describe various components, but the components should not be limited by the terms. These terms are used for the purpose of distinguishing one component from another. In addition, terms specifically defined in consideration of the configuration and operation of the embodiment are only for describing the embodiment, and do not limit the scope of the embodiment.

In the description of the embodiment, in the case where it is described as being formed on "upper (above)" or "lower (on or under)" of each element, on or under (on or under) ) includes both elements formed by directly contacting each other or by indirectly placing one or more other elements between the two elements. In addition, when expressed as “up (up)” or “down (down) (on or under)”, it may include the meaning of not only the upward direction but also the downward direction based on one element.

In addition, relational terms such as "upper/upper/upper" and "lower/lower/lower" used below do not necessarily require or imply any physical or logical relationship or order between such entities or elements, It may also be used to distinguish one entity or element from another entity or element.

In addition, an orthogonal coordinate system (x, y, z) can be used in the drawing. In the drawing, the x-axis and the y-axis mean planes perpendicular to the optical axis, and for convenience, the optical axis direction (z-axis direction) can be referred to as a first direction, an x-axis direction as a second direction, and a y-axis direction as a third direction. .

1 is a perspective view illustrating a camera module according to an exemplary embodiment. 2 is an exploded perspective view illustrating a lens driving device 100 according to an exemplary embodiment.

An image stabilization device applied to a small camera module of a portable device such as a smartphone or tablet PC is designed to prevent the outline of the captured image from being formed clearly due to vibration caused by the user's hand shake when capturing a still image. means configured device.

In addition, the auto focusing device is a device that automatically focuses an image of a subject on the image sensor 500 . Such an image stabilization device and an auto-focusing device can be configured in various ways. In the case of an embodiment, an optical module composed of a plurality of lenses is moved in a first direction or moved in a direction perpendicular to the first direction to compensate for such hand shake. operation and/or an auto focusing operation may be performed.

As shown in FIG. 1 , the camera module according to the embodiment may include a lens driving device 100 , a first holder 400 and a second holder 600 .

The lens driving device 100 may include a base 210 disposed below and bonded to the first holder 400 . As described above, the lens driving device 100 may perform hand shake correction and/or auto focusing by moving an optical module composed of a plurality of lenses. A specific structure of the lens driving device 100 will be described below with reference to FIG. 2 .

The first holder 400 may be coupled to the base 210 and a filter 410 may be mounted thereon. In addition, the image sensor 500 may be coupled to the lower portion of the first holder 400 . The image sensor 500 will be described in detail below with reference to FIG. 4 and the like. The second holder 600 may be disposed below the first holder 400 . Meanwhile, the first holder, the image sensor, and the second holder may be provided as a circuit board.

The second holder 600 may be provided with various driving drivers for driving the lens driving device 100 and circuits for receiving current or receiving or transmitting electrical signals from or to an external device. . Of course, in the case of a camera module that does not have an auto-focusing and hand-shake correction function and thus does not require a separate lens driving device, the driving driver may not be provided in the second holder 600 .

In addition, a connection board 610 for electrical connection between the second holder 600 and an external device, such as a power supply, a display device, a storage device, etc., may be provided in the second holder 600 .

The first holder 400 and the second holder 600 will be described in detail below with reference to FIG. 3 and below.

As shown in FIG. 2 , the lens driving device 100 according to the embodiment may include a movable part and a fixed part. At this time, the movable unit may perform an auto focusing function of the lens. The movable part may include the bobbin 110 and the first coil 120, and the fixed part may include the first magnet 130, the housing 140, the upper elastic member 150, and the lower elastic member 160. there is.

The bobbin 110 is installed inside the housing 140 to move in a first direction, and has a first coil 120 disposed inside the first magnet 130 on an outer circumferential surface thereof, and the first magnet 130 ) and the first coil 120 may be installed to be reciprocally movable in the first direction in the inner space of the housing 140 by the electromagnetic interaction. A first coil 120 is installed on the outer circumferential surface of the bobbin 110 to enable electromagnetic interaction with the first magnet 130 .

In addition, the bobbin 110 is elastically supported by the upper and lower elastic members 150 and 160 and moves in a first direction to perform an auto focusing function.

The bobbin 110 may include a lens barrel (not shown) in which at least one lens is installed. The lens barrel may be coupled to the inside of the bobbin 110 in various ways.

For example, the lens barrel may be coupled to the bobbin 110 using an adhesive or the like. In addition, the lens barrel may be coupled to the bobbin 110 by screwing. Alternatively, the one or more lenses may be integrally formed with the bobbin 110 without a lens barrel.

The lens coupled to the lens barrel may be composed of one sheet, or two or more lenses may form an optical system.

The auto focusing function is controlled according to the direction of the current, and the auto focusing function may be implemented by moving the bobbin 110 in the first direction. For example, when a forward current is applied, the bobbin 110 may move upward from an initial position, and when a reverse current is applied, the bobbin 110 may move downward from an initial position. Alternatively, the moving distance in one direction from the initial position may be increased or decreased by adjusting the amount of one-way current.

A plurality of upper support protrusions and lower support protrusions may protrude from the upper and lower surfaces of the bobbin 110 . The upper support protrusion may be provided in a cylindrical shape or a prismatic shape, and may couple and fix the upper elastic member 150 . The lower support protrusion may be provided in a cylindrical shape or a prismatic shape like the upper support protrusion described above, and may couple and fix the lower elastic member 160 .

In this case, a through hole corresponding to the upper support protrusion may be formed in the upper elastic member 150 , and a through hole corresponding to the lower support protrusion may be formed in the lower elastic member 160 . Each of the support protrusions and the through hole may be fixedly coupled by thermal fusion or an adhesive member such as epoxy.

The housing 140 may have a hollow pillar shape supporting the first magnet 130 and may be formed in a substantially rectangular shape. The first magnet 130 may be coupled to and disposed on the side surface of the housing 140 . In addition, as described above, the bobbin 110 moving in the first direction by being guided by the upper and lower elastic members 150 and 160 may be disposed inside the housing 140 .

The upper elastic member 150 may be provided on the upper side of the bobbin 110, and the lower elastic member 160 may be provided on the lower side of the bobbin 110. The upper elastic member 150 and the lower elastic member 160 are coupled to the housing 140 and the bobbin 110, and the upper elastic member 150 and the lower elastic member 160 are the first part of the bobbin 110. upward and/or downward motion in the direction can be supported elastically. The upper elastic member 150 and the lower elastic member 160 may be provided as leaf springs.

As shown in FIG. 2 , the upper elastic member 150 may be provided in a plurality separated from each other. Through this multi-division structure, each divided part of the upper elastic member 150 may receive currents of different polarities or different power sources. In addition, the lower elastic member 160 may also have a multi-division structure and be electrically connected to the upper elastic member 150 .

Meanwhile, the upper elastic member 150, the lower elastic member 160, the bobbin 110, and the housing 140 may be assembled through thermal fusion and/or bonding using an adhesive.

The base 210 is disposed under the bobbin 110, may be provided in a substantially rectangular shape, and the printed circuit board 250 may be disposed or seated thereon.

A support groove having a corresponding size may be formed on a surface of the base 210 facing the portion where the terminal surface 253 of the printed circuit board 250 is formed. This support groove is formed concavely inward from the outer circumferential surface of the base 210 to a certain depth, so that the portion where the terminal surface 253 is formed does not protrude outward or the amount of protrusion can be adjusted.

The support member 220 is disposed on the side of the housing 140 and spaced apart from the housing 140, the upper side is coupled to the upper elastic member 150, and the lower side is the base 210, the printed circuit board 250 or the circuit It is coupled to the member 231 and supports the bobbin 110 and the housing 140 so as to be movable in a second direction and/or a third direction perpendicular to the first direction, and also the first coil (120) and can be electrically connected.

Since each support member 220 according to the embodiment is disposed on the outer surface of the corner of the housing 140, a total of four may be installed symmetrically with each other. Also, the support member 220 may be electrically connected to the upper elastic member 150 . That is, for example, the support member 220 may be electrically connected to a portion of the upper elastic member 150 where the through hole is formed.

In addition, since the support member 220 is formed as a separate member from the upper elastic member 150, the support member 220 and the upper elastic member 150 may be electrically connected through a conductive adhesive material, soldering, or the like. . Accordingly, the upper elastic member 150 may apply current to the first coil 120 through the electrically connected support member 220 .

The support member 220 may be connected to the printed circuit board 250 through a through hole formed in the circuit member 231 and the printed circuit board 250 . Alternatively, the support member 220 may be electrically soldered to a corresponding portion of the circuit member 231 without forming a through hole in the circuit member 231 and/or the printed circuit board 250 .

Meanwhile, in FIG. 2 , the linear support member 220 is illustrated as an embodiment, but is not limited thereto. That is, the support member 220 may be provided in the form of a plate-shaped member or the like.

The second coil 230 may perform hand shake correction by moving the housing 140 in the second and/or third directions through electromagnetic interaction with the first magnet 130 .

Here, the second and third directions may include directions substantially close to the x-axis (or first direction) and y-axis (or second direction) directions as well as the x-axis and y-axis directions. That is, when viewed from the driving side of the embodiment, the housing 140 may move parallel to the x-axis and y-axis, but may also move slightly inclined to the x-axis and y-axis when moving while being supported by the support member 220 there is.

Therefore, the first magnet 130 needs to be installed at a position corresponding to the second coil 230 .

The second coil 230 may be disposed to face the first magnet 130 fixed to the housing 140 . In one embodiment, the second coil 230 may be disposed outside the first magnet 130 . Alternatively, the second coil 230 may be installed on the lower side of the first magnet 130 at a predetermined distance apart.

According to the embodiment, a total of four second coils 230 may be installed on the four sides of the circuit member 231, but is not limited thereto, one for the second direction and one for the third direction. It is possible that only two such as dogs are installed, and four or more may be installed.

Alternatively, 1 on the 1st side for the 2nd direction, 2 on the 2nd side for the 2nd direction, 1 on the 3rd side for the 3rd direction, and 2 on the 4th side for the 3rd direction, for a total of 6 It could be. Alternatively, in this case, the first side and the fourth side may be adjacent to each other, and the second side and the third side may be adjacent to each other.

In the embodiment, a circuit pattern may be formed on the circuit member 231 in the shape of the second coil 230, or a separate second coil may be disposed on the circuit member 231, but is not limited thereto, and the circuit pattern is not limited thereto. A circuit pattern may be formed directly on the member 231 in the shape of the second coil 230 .

Alternatively, it is also possible to configure the second coil 230 by winding a wire in a donut shape or to form the second coil 230 in an FP coil shape and electrically connect it to the printed circuit board 250.

The circuit member 231 including the second coil 230 may be installed or disposed on the upper surface of the printed circuit board 250 disposed above the base 210 . However, it is not limited thereto, and the second coil 230 may be disposed in close contact with the base 210 or may be disposed apart from each other by a certain distance, and may be formed on a separate substrate to attach the substrate to the printed circuit board 250. Stacked connections are also possible.

The printed circuit board 250 is electrically connected to at least one of the upper elastic member 150 and the lower elastic member 160 and coupled to the upper surface of the base 210, and as shown in FIG. 2, the A through hole into which the support member 220 is inserted may be formed at a position corresponding to an end of the support member 220 . Alternatively, it may be electrically connected and/or bonded to the support member without forming a through hole.

A terminal 251 may be disposed or formed on the printed circuit board 250 , and the terminal 251 may be disposed on the bent terminal surface 253 . A plurality of terminals 251 are disposed on the terminal surface 253 to receive external power and supply current to the first coil 120 and/or the second coil 230 . The number of terminals formed on the terminal surface 253 may be increased or decreased according to the types of components that need to be controlled. Also, the printed circuit board 250 may include one or more terminal surfaces 253 .

The cover member 300 may be provided in a substantially box shape, accommodate the movable part, the second coil 230, and a part of the printed circuit board 250, and may be combined with the base 210. The cover member 300 can protect the movable part, the second coil 230, the printed circuit board 250, etc. accommodated therein from being damaged, and additionally, the first magnet 130 accommodated therein. ), the electromagnetic field generated by the first coil 120, the second coil 230, etc. may be restricted from leaking to the outside so that the electromagnetic field can be focused.

In the above, an embodiment of a camera module having auto focusing and image stabilization functions has been described.

Meanwhile, according to another embodiment, the camera module may include a lens driving device capable of auto-focusing but not having an image stabilization function. At this time, for example, in the lens driving device shown in FIG. 2, the support member 220, the second coil 230, and the circuit member including the second coil 230 are removed to the lens driving device. may be provided.

On the other hand, according to another embodiment, the camera module may be provided with a structure without both auto focusing and hand shake correction functions. At this time, for example, a lens barrel may be provided as a camera module including a bobbin 110 accommodating the lens barrel and a cover member 300 accommodating the bobbin.

3 is a perspective view illustrating a base 210, a first holder 400, and a second holder 600 according to an exemplary embodiment.

A filter 410 may be mounted on the first holder 400 . The filter 410 may be mounted on the first holder 400 at a position facing the lens barrel and the image sensor 500 in a first direction. The filter 410 filters light of a specific wavelength range among light incident through the lens barrel, and the light passing through the filter 410 may be incident to the sensing unit 510 provided in the image sensor 500. .

In this case, the filter 410 may include, for example, an infrared cut-off filter that blocks infrared rays from entering the image sensor 500 . In another embodiment, the filter 410 may be provided as a blue filter. The blue filter may have a coating layer for blocking ultraviolet rays formed on the surface, and ghost and flare occurring in an image formed on the sensing unit 510 can be effectively suppressed compared to a general infrared blocking filter. There are advantages to being

The second holder 600 may be formed of a flexible material or a hard material. However, it may be appropriate for the connecting substrate 610 electrically connected to the second holder 600 to be formed of a flexible material whose position can be easily changed in order to easily connect external devices and the camera module.

4 is a schematic side cross-sectional view of a camera module according to an embodiment. 5 is a schematic plan view of an image sensor 500 according to an exemplary embodiment. 6 is a schematic plan view of a second holder 600, a connecting substrate 610, and a reinforcing member 650 according to an exemplary embodiment.

As shown in FIG. 4 , the camera module may further include an image sensor 500 . The image sensor 500 may be coupled to the lower portion of the first holder 400 and a sensing unit 510 may be mounted. In this case, the sensing unit 510 of the image sensor 500 may be disposed in a first direction with the filter 410 . The sensing unit 510 is a part where light passing through the filter 410 is incident and an image is formed.

As shown in FIG. 4 , the filter 410 may be coupled to the upper surface of the first holder 400 and the image sensor 500 may be coupled to the lower surface. The filter 410 may be attached to the upper surface of the first holder 400 by, for example, an adhesive such as epoxy.

Light passing through the filter 410 may be incident to the sensing unit 510 . Therefore, as shown in FIG. 4 , a through hole may be formed in the first holder 400 to allow light to pass through the portion where the filter 410 and the sensing unit 510 face each other. .

Meanwhile, the first holder 400 and the image sensor 500 may be coupled to each other and electrically connected. As shown in FIG. 4 , the first holder 400 and the image sensor 500 may be coupled and electrically connected to each other by a second coupling part T2.

Coupling and electrical connection between the first holder 400 and the image sensor 500 may be implemented by, for example, a flip chip process. That is, the second coupling part T2 may be formed by a flip chip process.

In the flip chip process, for example, when a conductive material is sprayed onto the first holder 400 and/or the image sensor 500 to attach the first holder 400 and the image sensor 500 to each other, the conductive material By fusing, the first holder 400 and the image sensor 500 may be coupled and electrically connected to each other.

The flip chip process has a simpler structure than the SMT (Surface Mounter Technology) process, which is generally used for board bonding and electrical connection, and the thickness of the bonding area is thinner than that of the SMT process, so the camera module There is an effect of reducing the length in the first direction as a whole.

Meanwhile, in another embodiment, coupling and electrical connection between the first holder 400 and the image sensor 500 may be coupled using a conductive adhesive. That is, in FIG. 4 , the second coupling portion T2 coupling and electrically connecting the first holder 400 and the second holder 600 may be formed of the conductive adhesive.

The conductive adhesive may be, for example, an anisotropic conductive film (ACF). The conductive adhesive will be described in detail in the coupling structure of the first holder 400 and the second holder 600 .

The first holder 400 and the second holder 600 may be coupled to each other and electrically connected by a conductive adhesive. That is, in FIG. 4 , the first coupling portion T1 coupling and electrically connecting the first holder 400 and the second holder 600 may be formed of a conductive adhesive.

The conductive adhesive may be provided with, for example, ACF (Anisotropic Conductive Film). The ACF is provided in the form of a film as a whole, and can be made by mixing conductive particles, such as gold (AU) and nickel (Ni) particles, with an adhesive resin.

When an ACF is placed at the joint between the first holder 400 and the second holder 600, and the ACF is pressurized and heated, the first holder 400 and the second holder 600 are coupled to each other. and may be electrically connected to each other by conductive particles.

When the first holder 400 and the second holder 600 are coupled and electrically connected to each other through an SMT process, wires and solder may be used. Therefore, in the case of the SMT process, since a space occupied by wires and solder is required, the length of the camera module in the first direction may be increased as a whole.

In addition, in the SMT process, the process of melting and hardening the solder may be repeated, and excessive heat may be applied to each holder for this, and thus thermal damage may occur to each holder provided as a substrate.

However, since the ACF does not use a separate wire and solder, the space occupied by the wire and solder can be reduced, and thus the length of the camera module in the first direction can be reduced as a whole.

In addition, in the case of using ACF, since only heating sufficient to reach the melting temperature of the adhesive resin, which is much lower than the melting temperature of solder, excessive heat is not applied to each of the holders, and therefore, each holder provided as a substrate The occurrence of thermal damage can be significantly reduced.

In an embodiment, the camera module may further include a stiffener 650 . The reinforcing member 650 is disposed below the second holder 600 and may be coupled to, for example, a lower surface of the second holder 600 . As shown in FIG. 6 , the reinforcing member 650 may be provided in a plate shape, for example, and may be provided with a material including, for example, stainless steel.

The second holder 600 has a hollow portion VC for accommodating the image sensor 500, and foreign matter may flow into the camera module through the hollow portion VC.

Accordingly, the reinforcing member 650 may serve to suppress the inflow of foreign substances into the camera module by closing the hollow portion VC. The reinforcing member 650 may be attached to the lower surface of the second holder 600 using an adhesive such as epoxy to effectively seal the hollow part VC.

As shown in FIG. 5 , the image sensor 500 may include a print terminal part 550 . The print terminal part 550 may be electrically connected to the conductive adhesive and coupled to the first holder 400 .

That is, the second coupling part T2 may be coupled to the print terminal part 550 . In this case, the sensing unit 510 may be electrically connected to the first holder 400 through the print terminal unit 550 .

Meanwhile, the second holder 600 may be provided to be combined with the first holder 400 and surround the image sensor 500 . As shown in FIG. 4 , the second holder 600 has a hollow part VC, and the image sensor 500 can be accommodated in the hollow part VC.

Due to the structure in which the image sensor 500 is accommodated in the hollow part VC, there is no need for a separate space in which the image sensor 500 is disposed in the camera module, and thus the length of the camera module in the first direction can be reduced as a whole. there is. Accordingly, the camera module may have a slim structure as a whole.

7 is a perspective view illustrating a portable device according to an exemplary embodiment. FIG. 8 is a configuration diagram of the portable device shown in FIG. 7 .

Referring to FIGS. 7 and 8 , the portable device 200A (hereinafter referred to as “device”) includes a body 850, a wireless communication unit 710, an A/V input unit 720, a sensing unit 740, an input / 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. 7 has a bar shape, 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 device 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 device 200A and a wireless communication system or between the device 200A and a network in which the device 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 be a camera including the lens driving device 100 according to the embodiment shown in FIG. 2 .

The sensing unit 740 detects the current state of the device 200A, such as the open/closed state of the device 200A, the location of the device 200A, whether or not there is a user contact, the direction of the device 200A, and the acceleration/deceleration of the device 200A. By sensing, a sensing signal for controlling the operation of the device 200A may be generated. For example, if the device 200A is in the form of a slide phone, it may sense whether the slide phone is opened or closed. 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 device 200A, and may also display information processed by the device 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 device 200A is connected. The interface unit 770 receives data from an external device or receives power and transmits it to each component inside the device 200A, or transmits data inside the device 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 device 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 the panel controller 144 of the touch screen panel driving unit shown in FIG. 1 or may perform the function of the panel controller 144 .

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.

Although only a few have been described as described above in relation to the embodiments, various other forms of implementation are possible. The technical contents of the above-described embodiments may be combined in various forms unless they are incompatible with each other, and through this, may be implemented in a new embodiment.

100: lens driving device
210: base
400: first holder
410: filter
500: image sensor
510: sensing unit
550: print terminal unit
600: second holder
610: connection board
650: stiffener

Claims (15)

a first circuit board including a first hole;
a lens driving device including a base disposed on the first circuit board;
a filter disposed on an upper surface of the first circuit board;
A second circuit disposed below the first circuit board, including a body, a second hole formed in the body opposite the first hole, and a connection board connected to a side surface of the body for electrical connection with the outside. Board;
an image sensor positioned under the first circuit board and disposed in the second hole of the second circuit board and coupled to the lower surface of the first circuit board;
a first conductive adhesive disposed between the lower surface of the first circuit board and the upper surface of the second circuit board and electrically connecting the first circuit board and the second circuit board; and
A reinforcing material disposed under the image sensor and the second circuit board,
The reinforcing member includes a first region coupled to the second circuit board and a second region corresponding to the second hole of the second circuit board;
The camera module of claim 1 , wherein the first conductive adhesive overlaps the first region of the reinforcing material in a direction parallel to an optical axis. According to claim 1,
The lens driving device,
a housing disposed on the base;
a bobbin disposed within the housing;
a first coil disposed on the bobbin;
a first magnet disposed in the housing; and
A camera module including an elastic member coupled to the bobbin and the housing. According to claim 1,
The reinforcing member is coupled to the lower surface of the body of the second circuit board to close the second hole of the second circuit board. According to claim 1,
The first conductive adhesive is a camera module provided with an anisotropic conductive film (ACF). According to claim 2,
The lens driving device,
a support member coupled to the elastic member; and
A camera module including a second coil facing the first magnet. According to claim 1,
An edge of the lower surface of the first circuit board is attached to the first conductive adhesive. According to claim 1,
The filter is an infrared cut filter or a blue filter,
The first circuit board is a camera module that is a printed circuit board. According to claim 1,
The image sensor,
a sensing unit that is a part where the light passing through the filter is incident and an image is formed; and
A camera module including a printed terminal part disposed around the sensing part and electrically connected to the first circuit board. According to claim 8,
and a second conductive adhesive disposed between the printed terminal unit and the first circuit board and electrically connecting the printed terminal unit and the first circuit board. According to claim 9,
The second conductive adhesive is a camera module provided with an anisotropic conductive film (ACF). According to claim 1,
The second circuit board is a camera module including a flexible circuit board. According to claim 1,
The base is coupled to an edge of the upper surface of the first circuit board,
the filter is coupled to a first region of the upper surface of the first circuit board;
The camera module of claim 1 , wherein the first region of the top surface of the first circuit board is positioned inside the edge of the top surface of the first circuit board. According to claim 1,
The reinforcing member is formed of a material including stainless steel,
A camera module comprising an adhesive attaching the reinforcing material to a lower surface of the second circuit board. According to claim 1,
The first circuit board and the image sensor are coupled and electrically connected by a flip chip process or a conductive adhesive. a display module including a plurality of pixels;
The camera module according to any one of claims 1 to 14; and
A portable device comprising a control unit controlling operations of the display module and the camera module.

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