Camera module and mobile device

Abstract

A camera device module and a mobile device are provided. The camera device module includes: a first circuit board; a retaining member disposed on the first circuit board and including a wall protruding from the upper surface of the retaining member; an image sensor disposed on the first circuit board; a filter disposed on the retaining member and positioned inside the wall of the retaining member; a base disposed on the retaining member; and a coil holder disposed above the base, wherein the base includes a retraction portion formed on the rear surface of the base, and the wall of the retaining member is disposed between the edge of the filter and the retraction portion of the base.

Description

[0001] This application is a divisional application of Chinese patent application No. 202110367854.3, filed on April 6, 2021, entitled "Camera Device Module and Mobile Device". Chinese patent application No. 202110367854.3 is a divisional application of Chinese patent application No. 201680071450.7 entitled "Lens Driving Device and Camera Device Module Including the Therein", filed on November 2, 2016 and entered the Chinese national phase on June 6, 2018. Technical Field

[0002] The embodiments relate to a lens driving device and a camera device module including the lens driving device. Background Technology

[0003] The disclosure described in this section provides background information related to the implementation methods only and does not constitute related technology.

[0004] Recently, there has been active development of IT products equipped with miniature digital cameras, such as mobile phones, smartphones, tablets, and laptops.

[0005] In the case of camera modules installed in small electronic products such as smartphones, the camera modules may be frequently subjected to shocks during use and may experience slight shaking due to factors such as the user's hand tremors. Considering this, there is a recent need to develop techniques in which a hand tremor compensation device is additionally provided to the camera module.

[0006] To prevent slight shaking of the camera module due to, for example, user hand tremors during image capture, the optical module, including at least one lens, can be moved in a plane defined by a second direction orthogonal to a first direction parallel to the optical axis and a third direction.

[0007] For this purpose, the camera module may include a circuit component comprising a printed circuit board and at least one second coil disposed on the printed circuit board to provide the force required to move the optical module in a second direction and a third direction.

[0008] After manufacturing, the lens drive unit needs to pass a predetermined standardized impact test. This standardized impact test typically involves, for example, fixing the lens drive unit on an impact test bench and subjecting it to a maximum impact acceleration of 500 m / s². 2 In the case of applying a shock wave (i.e., a sinusoidal half-wave) three times in two directions orthogonal to each other about the Z-axis within an impact duration of 11 ms, check whether the appearance of the lens drive device has significant abnormalities, or whether the specification change of the lens drive device is within the predetermined range compared with the initial value.

[0009] In this situation, the lens barrel of the lens drive device may become detached from the coil holder that houses the lens barrel, or it may be misaligned.

[0010] During impact testing, as described above, the resolution of the camera module may decrease when the lens barrel separates from the coil frame or when the lens barrel is tilted at a predetermined angle.

[0011] In the case of a lens driving device installed in a small electronic product such as a smartphone, and a camera module including the lens driving device, an autofocus device can be installed therein. Specifically, in order to achieve autofocus, a coil holder can be installed in the lens driving device to move the lens along the optical axis.

[0012] Alternatively, a lens barrel with a lens can be installed in the coil frame. The lens barrel can be adhesively coupled to the coil frame. Furthermore, when an external impact is applied to the lens drive device and the camera module, the coupling between the lens barrel and the coil frame breaks, allowing the lens barrel to move freely relative to the coil frame.

[0013] When the lens barrel moves arbitrarily relative to the coil mount, the lens drive mechanism cannot accurately perform its functions, such as autofocus. This results in a degraded quality of the images captured by the camera module.

[0014] A camera module installed in a small electronic product, such as a smartphone, may include, for example, a lens drive and a retaining element coupled thereto.

[0015] The lens driving device may include at least one lens, and may also include an autofocus device for focusing the lens along the optical axis and a hand shake compensation device for preventing image quality degradation due to the user's hand shake.

[0016] The retaining element coupled to the lens driving device may include, for example: a sensor retaining element on which an image sensor is mounted to form an image of an object on the image sensor; and a filter retaining element on which a filter is mounted to filter light within a specific wavelength range incident on the image sensor.

[0017] When the lens drive is bonded to the retainer by adhesive, shear force may be applied to the adhesive portion of the lens drive and the retainer when external forces are applied to the lens drive and the retainer in different directions.

[0018] When shear force is repeatedly and continuously applied to the adhesive portion, the adhesive portion may be damaged, and in the worst case, the adhesive portion may break, causing the lens drive to separate from the retainer.

[0019] The lens drive unit of the camera module is bonded to the image sensor board using an adhesive containing epoxy resin.

[0020] In order to align the optical axis of the light incident on the lens drive device with the optical axis of the image sensor mounted on the image sensor plate, when the lens drive device and the image sensor plate are joined together with adhesive, a process of aligning the lens drive device and the image sensor plate with each other is performed, and then the lens drive device and the image sensor plate are joined together.

[0021] However, traditionally, when the lens drive unit and the image sensor board are coupled to each other, it is difficult to handle the flexible circuit board that protrudes from the lens drive unit and connects to the image sensor board. This leads to assembly errors between the flexible circuit board and the image sensor board and increases assembly time.

[0022] Additionally, when the face-to-face portions of the lens drive unit and the image sensor board, which are attached to each other, come into contact with each other due to, for example, reliability testing, this can significantly degrade the performance of the camera module.

[0023] In addition, due to the narrow adhesive area between the image sensor plate and the lens drive unit, the lens drive unit and the image sensor plate may easily separate from each other due to external impacts. Summary of the Invention

[0024] [Technical Issues]

[0025] An embodiment provides a lens driving device and a camera device module including the lens driving device. In the lens driving device, a fixing part is provided between the lens barrel and the coil frame to prevent the lens barrel from separating from the coil frame or tilting during impact testing.

[0026] In addition, the embodiment provides a lens driving device and a camera device module including the lens driving device, which prevents the lens barrel from separating from the coil frame or tilting during impact testing, thereby preventing resolution degradation of the camera device module.

[0027] In addition, the embodiments provide a lens driving device with a structure that increases the coupling force between the coil frame and the lens barrel, and an imaging device module including the lens driving device.

[0028] Additionally, one embodiment provides a camera device module having a robust structure with high shear strength even when external forces are applied to it.

[0029] Additionally, one embodiment provides a camera device module in which a flexible circuit board protruding from the lens drive device and connected to the image sensor board is supported when the lens drive device and the image sensor board are coupled to each other. This prevents errors in the assembly of the flexible circuit board and the image sensor board and reduces assembly time.

[0030] In addition, the embodiment provides a camera device module that prevents significant performance degradation when the facing portions of the image sensor board and the lens drive device, which are already joined together, come into contact with each other due to reliability testing or the like.

[0031] Additionally, the embodiment provides a camera device module in which the lens driving device and the image sensor plate are prevented from easily separating from each other due to external impacts because of the narrow adhesive area of ​​the adhesive provided between the image sensor plate and the lens driving device.

[0032] The technical objectives obtained by the implementation are not limited to those described above, and other unmentioned technical objectives will be clearly understood by those skilled in the art from the following description.

[0033] [Technical Solutions]

[0034] In one embodiment, a camera device module includes: a lens barrel including at least one lens; a coil holder configured to receive the lens barrel in the coil holder; and a fixing portion disposed between the lens barrel and the coil holder to prevent separation of the lens barrel from the coil holder, wherein a surface of the coil holder in contact with the surface of the fixing portion includes a coil holder rib configured to project toward the lens barrel.

[0035] In another embodiment, a camera device module includes: a lens barrel including at least one lens; a coil holder configured to receive the lens barrel in the coil holder; and a fixing portion disposed between the lens barrel and the coil holder to prevent separation of the lens barrel from the coil holder, wherein a surface of the coil holder in contact with the surface of the fixing portion includes a coil holder rib configured to protrude toward the lens barrel, and wherein a surface of the lens barrel in contact with the surface of the fixing portion includes a lens barrel rib configured to protrude or a lens barrel recess configured to be recessed.

[0036] In another embodiment, a camera device module includes: a lens barrel including at least one lens; a coil holder configured to house the lens barrel within the coil holder; a fixing portion disposed between the lens barrel and the coil holder to prevent separation of the lens barrel from the coil holder; a first coil disposed on an outer peripheral surface of the coil holder; a first magnet disposed facing the first coil; a housing configured to support the first magnet; an upper elastic member and a lower elastic member coupled to the coil holder and the housing; a base disposed below the coil holder; a plurality of support members configured to support the housing such that the housing is movable relative to the base along a second direction and a third direction orthogonal to the first direction; and a printed circuit board mounted on the base, wherein a surface of the coil holder in contact with the surface of the fixing portion includes a coil holder rib configured to project toward the lens barrel.

[0037] According to one aspect of this application, a camera device module is provided, comprising: a first circuit board; an image sensor disposed on the first circuit board; a retaining member disposed on the first circuit board and surrounding the image sensor; an infrared cutoff filter disposed on the retaining member; a base disposed on the retaining member; and a coil holder disposed on the base, wherein the retaining member includes a wall projecting from an upper surface of the retaining member, and wherein the base includes a retraction portion formed on a rear surface of the base to prevent the wall from contacting the rear surface of the base.

[0038] According to another aspect of this application, a camera device module is provided, comprising: a first circuit board; an image sensor disposed on the first circuit board; a retaining member disposed on the first circuit board and surrounding the image sensor; an infrared cutoff filter disposed on the retaining member; a base disposed on the retaining member; a second circuit board including: a first circuit board portion disposed facing an upper surface of the base; and a second circuit board portion bent downward toward a side surface of the base; and a coil holder disposed on the base, wherein the base includes: a support portion protruding from a lower surface of the base and supporting the second circuit board portion.

[0039] According to another aspect of this application, a camera device module is provided, comprising: a first circuit board; an image sensor disposed on the first circuit board; a retaining member disposed on the first circuit board and surrounding the image sensor; an infrared cutoff filter disposed on the retaining member; a base disposed on the retaining member; a coil holder disposed on the base; and an adhesive disposed between the retaining member and the base, wherein the base includes an adhesive receiving recess formed in a lower surface of the base, and wherein the adhesive is disposed in the adhesive receiving recess.

[0040] According to one aspect of this application, a camera device module is provided, comprising: a first circuit board; a retaining member disposed on the first circuit board and including a wall protruding from the upper surface of the retaining member; an image sensor disposed on the first circuit board; a filter disposed on the retaining member and positioned inside the wall of the retaining member; a base disposed on the retaining member; and a coil holder disposed above the base, wherein the base includes an exit portion formed on the rear surface of the base, and the wall of the retaining member is disposed between the edge of the filter and the exit portion of the base.

[0041] According to another aspect of this application, a camera device module is provided, comprising: a first circuit board; a retaining member disposed on the first circuit board and including a wall protruding from the upper surface of the retaining member; an image sensor disposed on the first circuit board; a filter disposed on the retaining member and positioned inside the wall of the retaining member; a base disposed on the retaining member and including a through hole; a coil holder disposed above the base; and a lens module coupled to the coil holder, wherein the base includes a withdrawal portion formed in a portion of the rear surface of the base adjacent to the through hole, wherein a portion of the wall of the retaining member overlaps with the withdrawal portion of the base in the optical axis direction, and the optical axis of the lens module is positioned closer to the wall of the retaining member than the withdrawal portion of the base.

[0042] According to another aspect of this application, a camera device module is provided, comprising: a first circuit board; an image sensor disposed on the first circuit board; a retaining member disposed on the first circuit board and surrounding the image sensor; an infrared cutoff filter disposed on the retaining member; a base disposed on the retaining member; a second circuit board including a first circuit board portion disposed facing an upper surface of the base and a second circuit board portion bent downward toward a side surface of the base; and a coil holder disposed on the base, wherein the base includes a support portion protruding from a lower surface of the base and supporting the second circuit board portion.

[0043] According to another aspect of this application, a mobile device is provided, including a camera device module according to an embodiment.

[0044] [Beneficial Effects]

[0045] The lens driving device and the camera device module including the lens driving device according to the embodiment may include a fixing part disposed between the lens barrel and the coil frame, thereby preventing the lens barrel from separating from the coil frame or tilting during impact testing.

[0046] Furthermore, by preventing the lens barrel from separating from the coil frame or tilting during impact testing, resolution degradation of the camera module can be prevented.

[0047] In one embodiment, by using coupling protrusions and coupling recesses to couple the coil frame and the lens barrel to each other, the coil frame and the lens barrel can be kept in a coupled state, even when the adhesive that holds the coil frame and the lens barrel together comes off due to external impact.

[0048] In addition, since the area where the adhesive adheres to the coil frame and lens barrel can be increased, the coupling force between the coil frame and lens barrel can be increased by the adhesive.

[0049] In addition, since the portion on which the adhesive is applied has a stepped shape to significantly reduce the formation of gaps, the amount of adhesive that moves into the lens drive unit through the gaps can be significantly reduced, and thus, the image sensor and other components are prevented from being damaged by the adhesive introduced into the lens drive unit through the gaps.

[0050] Furthermore, by limiting excessive movement of the lens barrel along the first direction caused by the first distance being less than the second distance, the degradation of the captured image quality caused by arbitrary and uncontrolled movement of the lens barrel can be prevented or significantly reduced.

[0051] In this implementation, by providing protruding and recessed portions to prevent excessive movement of the base relative to the filter holder in the xy plane, damage or breakage of the coupling portion due to shear forces can be prevented.

[0052] Therefore, it can prevent the degradation of image quality captured by the camera module that may occur when the base moves excessively relative to the filter holder, and prevent malfunction and shutdown of the camera module due to breakage of the coupling part.

[0053] In this embodiment, protruding portions and corresponding recessed portions are formed in the adhesive portions of the filter holder and the sensor holder. Therefore, even when strong shear forces are applied to the adhesive portions of the filter holder and the sensor holder, damage or breakage of the adhesive portions can be prevented.

[0054] Therefore, it can prevent image quality degradation, erroneous operation, and operation stoppage of the camera module caused by the breakage of the adhesive parts of the filter holder and sensor holder.

[0055] In the camera device module according to the embodiment, when the lens driving device and the image sensor board are coupled to each other, a flexible circuit board protruding from the lens driving device and connected to the image sensor board is supported, thereby preventing errors in the assembly of the flexible circuit board and the image sensor board and reducing assembly time.

[0056] In addition, it can prevent significant degradation of the camera module's performance caused by contact between the face parts of the image sensor board and lens drive unit, which are already joined together, due to reliability testing or other reasons. Attached Figure Description

[0057] Figure 1 This is an exploded perspective view schematically showing a camera device module according to one embodiment.

[0058] Figure 2a and Figure 2b This illustrates the assembly of the lens barrel assembly, sensor base, and plate unit according to one embodiment.

[0059] Figure 3 This is a schematic perspective view of a lens driving device according to one embodiment.

[0060] Figure 4 This is an exploded perspective view showing the lens driving device according to this embodiment.

[0061] Figure 5 A base, a printed circuit board, and a second coil are shown according to one embodiment.

[0062] Figure 6 The coupling relationship between the lens barrel and the coil holder in the lens driving device according to this embodiment is shown.

[0063] Figure 7 An exploded perspective view of the lens barrel, coil holder, and fixing part of a lens driving device according to another embodiment is shown.

[0064] Figure 8 The coupling relationship between the lens barrel and the coil holder in the lens driving device according to this embodiment is shown.

[0065] Figure 9 It shows Figure 8 Various implementations of region "A" shown.

[0066] Figure 10This is a perspective view schematically showing a lens driving device according to yet another embodiment.

[0067] Figure 11 This is an exploded perspective view showing the lens driving device according to this embodiment.

[0068] Figure 12 This is a view showing a lens barrel according to one embodiment.

[0069] Figure 13 This is a perspective view showing a coil frame according to one embodiment.

[0070] Figure 14 and Figure 15 This is a view used to illustrate the method of coupling the lens barrel to the coil holder, and Figure 15 A coupling recess according to one embodiment is shown.

[0071] Figure 16 It is a cross-sectional view showing the coil frame and lens barrel coupled to each other.

[0072] Figure 17 This is a view showing the coupling recess according to another embodiment.

[0073] Figure 18 This is a view showing the coupling recess according to yet another embodiment.

[0074] Figure 19 This is a view showing the coupling recess according to yet another embodiment.

[0075] Figure 20 This is a perspective view showing a camera device module according to another embodiment.

[0076] Figure 21 This is an exploded perspective view showing a lens driving device according to yet another embodiment.

[0077] Figure 22 This is a perspective view showing the base, filter holder, and sensor holder according to one embodiment.

[0078] Figure 23 This is an exploded perspective view showing the base, filter holder, and sensor holder according to this embodiment.

[0079] Figure 24 This is a bottom view showing the base according to one embodiment.

[0080] Figure 25 This is a plan view showing a filter holding element according to one embodiment.

[0081] Figure 26This is a side cross-sectional view showing the state in which the base and filter holder are coupled to each other according to one embodiment.

[0082] Figure 27 It is shown Figure 26 A magnified image of part of "AA".

[0083] Figure 28 This is a bottom view showing the base according to another embodiment.

[0084] Figure 29 This is a plan view showing the filter holding member according to this embodiment.

[0085] Figure 30 This is a bottom view showing a filter holder according to yet another embodiment.

[0086] Figure 31 This is a plan view showing the sensor holder according to this embodiment.

[0087] Figure 32 This is an exploded perspective view showing a camera device module according to yet another embodiment.

[0088] Figure 33 It is shown Figure 32 An exploded perspective view of the lens drive mechanism.

[0089] Figure 34 Besides the camera module Figure 32 A longitudinal cross-sectional view of the remaining parts excluding the lens drive mechanism.

[0090] Figure 35 This is a cross-sectional view showing the joint structure of the base corresponding to the retaining member according to one embodiment. Detailed Implementation

[0091] In the following, embodiments will be described in detail with reference to the accompanying drawings. However, embodiments may be implemented in many alternative forms, and this disclosure should not be construed as limited to the embodiments set forth herein. Therefore, while this disclosure is susceptible to various modifications and alternatives, specific embodiments thereof are shown by way of example in the accompanying drawings and will be described in detail herein. However, it should be understood that this disclosure is not intended to limit this disclosure to the specific forms disclosed, but rather, this disclosure is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the embodiments defined by the claims. The same reference numerals will be used throughout the drawings to refer to the same or similar parts. In the drawings, the dimensions of layers and regions are exaggerated for clarity of description.

[0092] Furthermore, while terms such as "first" and "second" may be used to describe various elements in the description of the various embodiments, these terms are only used to distinguish identical or similar elements from each other. Therefore, in the specification, within the scope of the present invention, unless otherwise described, an element modified by "first" may be the same as an element modified by "second".

[0093] In the description of the embodiments, it should be understood that when an element (e.g., a layer (film), region, pattern, or structure) is referred to as being "on" or "below" another element (e.g., a substrate, layer (film), region, pad, or pattern), the terms "on" or "below" mean that the element is "directly" on or below the other element, or is formed "indirectly" such that insert elements may also be present. Furthermore, it should be understood that the standard for "on" or "below" is based on the accompanying drawings.

[0094] Furthermore, relative terms used in the following description, such as “above / upper / above” and “below / below”, may be used to distinguish one substance or element from another without requiring or containing any physical or logical relationship or order between them.

[0095] Additionally, a Cartesian coordinate system (x, y, z) can be used in the attached diagram. In the diagram, the x-axis and y-axis are perpendicular to the optical axis. For convenience, the direction of the optical axis (z-axis direction) can be referred to as the "first direction," the x-axis direction as the "second direction," and the y-axis direction as the "third direction."

[0096] The "shake compensation device" used in a small camera module installed in a mobile device such as a smartphone or tablet is a device configured to prevent blurring of the captured image due to vibrations caused by the user's hand tremors when the image is captured.

[0097] Additionally, an "autofocus device" is a means for automatically focusing an image of an object onto the surface of an image sensor. The image stabilization device and the autofocus device can be configured in various ways. According to an embodiment, the lens driving device can perform image stabilization and / or autofocus operations relative to a plane defined by a second direction and a third direction orthogonal to the first direction by moving an optical module consisting of at least one lens along a first direction parallel to the optical axis.

[0098] Figure 1 This is an exploded perspective view schematically showing a camera device module according to one embodiment.

[0099] Reference Figure 1The camera device module according to this embodiment may include: a lens barrel 9111, wherein a plurality of lenses are stacked above each other; a coil holder 9110, in which the lens barrel 9111 is housed; a cover member 9300, which provides a receiving space for accommodating the coil holder 9110 to house the coil holder 9110; a filter holder 9400, which is disposed on and supports the lower surface of the cover member 9300; an image sensor 9500, which is disposed on one surface of the filter holder 9400 and converts light incident on the coil holder 9110 into an electrical signal; and a board unit, which provides space for mounting the image sensor 9500 and sends the electrical signal converted by the image sensor 9500 to a controller (not shown) for conversion.

[0100] The filter holder 9400 can be disposed between the lower surface of the cover member 9300 and the upper surface of the plate unit.

[0101] More specifically, the filter holder 9400 can be adhered to the lower surface of the cover member 9300 such that the filter holder 9400 and the cover member 9300 are coupled to each other, and the filter holder 9400 can be assembled such that the filter holder 9400 is mounted on the upper surface of the board unit in a coupled state with the cover member 9300.

[0102] However, this is only one embodiment shown, and users can omit the filter holder 9400 if needed and can directly couple the cover member 9300 to the board unit.

[0103] The filter holder 9400 may include the filter at its center.

[0104] The filter holder 9400 may be configured to be hollow. This is to allow light collected from the outside by the lens barrel 9111 to pass through the filter holder 9400 and be transmitted to the image sensor 9500.

[0105] That is, the light collected from the outside by the lens barrel 9111 passes through the central portion of the filter holder 9400. At this time, the filter can be positioned at the center of the filter holder 9400 to extract only light within the desired wavelength range and send the light to the image sensor 9500.

[0106] In one implementation, the filter may be an infrared (IR) cutoff filter.

[0107] The external light collected by the lens barrel 9111 includes infrared light in the wavelength range invisible to humans. The infrared cutoff filter is a component that blocks light in the infrared wavelength range to prevent the image sensor 9500 from sensing infrared light and distorting the actual color into some other color.

[0108] However, the filter in the implementation can be a filter that blocks light in a wavelength range other than the infrared wavelength range.

[0109] The board unit may include: a board base 9610, which provides a surface on which a coil holder 9110, a cover member 9300, a filter holder 9400 and an image sensor 9500 are disposed; a connector unit 9650, which transmits signals received from the board base 9610 to a controller (not shown); and a connecting board 9630, one end of which is electrically connected to the board base 9610 and the other end of which is electrically connected to the connector unit 9650, thereby transmitting electrical signals generated by the board base 9610 to the connector unit 9650.

[0110] The connector 9630 can be a flexible printed circuit board (FPCB).

[0111] When the connector 9630 is a flexible printed circuit board, it differs from existing printed circuit boards in that it can bend freely. This allows for more efficient use of limited space.

[0112] However, this is only described as one implementation method, and the connector 9630 may be a regular printed circuit board, different from a flexible printed circuit board, depending on the user's needs.

[0113] Figure 2a and Figure 2b This illustration shows the state in which the lens barrel assembly, sensor base, and plate unit are assembled with each other according to one embodiment.

[0114] Reference Figure 2a and Figure 2b The filter holder 9400, the image sensor 9500, and the cover member 9300 that houses the coil holder 9110 therein can be stacked sequentially on the upper surface of the plate base 9610 of the plate unit.

[0115] The plate base 9610 may include a plurality of terminal units disposed on at least one surface of the plate base 9610 in contact with the cover member 9300 to electrically connect the plate units to the image sensor 9500.

[0116] The terminal unit may include: a first terminal unit 96111 disposed along a first side of the lower surface of the cover member 9300; and a second terminal unit 96113 disposed along a second side facing the first side of the lower surface of the cover member 9300.

[0117] Additionally, the terminal unit may include epoxy resin 9700, which is disposed on a third side adjacent to the first side on the lower surface of the cover member 9300 on which the first terminal unit 96111 is disposed, and is also disposed on a fourth side facing the third side on the lower surface of the cover member 9300.

[0118] That is, epoxy resin 9700 can be disposed on the lower surface of the cover member 9300 on which no terminal unit is disposed. This is to prevent volume increase caused when epoxy resin 9700 is disposed above the terminal unit.

[0119] However, the epoxy resin 9700 and the terminal unit can be placed in various other locations according to the user's needs, as long as the image sensor 9500 and the board unit are electrically connected to each other via the terminal unit and the cover member 9300 and the filter holder 9400 are physically coupled to each other via the epoxy resin 9700.

[0120] Figure 3 A schematic perspective view of a lens driving device according to one embodiment is shown. Figure 4 It shows Figure 3 An exploded perspective view of the lens driving device shown.

[0121] Reference Figure 3 The lens driving device according to the embodiment may include a first lens driving unit, a second lens driving unit, and a cover member 9300. Here, the first lens driving unit can be used as the aforementioned autofocus device, and the second lens driving unit can be used as the aforementioned hand-shake compensation device.

[0122] The cover member 9300 may have a substantially box shape and may surround the first lens drive unit and the second lens drive unit.

[0123] like Figure 4 As shown, the lens driving device according to this embodiment may include a movable unit. Here, the movable unit can perform lens autofocus and image stabilization functions. The movable unit may include a coil holder 9110, a first coil 9120, a first magnet 9130, a housing 9140, an upper elastic member 9150, and a lower elastic member 9160.

[0124] A coil holder 9110 has a first coil 9120 disposed on its outer peripheral surface, the first coil 9120 being disposed inside the first magnet 9130. The coil holder can be disposed within the internal space of the housing 9140 to be reciprocating in a first direction through the electromagnetic interaction between the first magnet 9130 and the first coil 9120. The first coil 9120 can be disposed on the outer peripheral surface of the coil holder 9110 to electromagnetically interact with the first magnet 9130.

[0125] In addition, the coil holder 9110 can be elastically supported by the upper elastic member 9150 and the lower elastic member 9160, and can perform an autofocus function by moving along the first direction.

[0126] The coil holder 9110 may include a lens barrel 9111 in which at least one lens is disposed. The lens barrel 9111 may be coupled inside the coil holder 9110 in various ways.

[0127] For example, an internal thread can be formed in the inner peripheral surface of the coil holder 9110, and an external thread can be formed in the outer peripheral surface of the lens barrel 9111 to correspond to the internal thread, so that the lens barrel 9111 can be coupled to the coil holder 9110 by a threaded connection. However, this disclosure is not limited to this. Instead of forming a thread in the inner peripheral surface of the coil holder 9110, the lens barrel 9111 can be directly fixed to the inside of the coil holder 9110 by methods other than threaded connection. Alternatively, without the lens barrel 9111, one or more lenses can be integrally formed with the coil holder 9110.

[0128] A single lens element can be coupled to the lens barrel 9111, or two or more lenses can form an optical system.

[0129] The autofocus function is controlled based on the direction of the current. The autofocus function can be achieved by moving the coil holder 9110 along a first direction. For example, when a positive current is applied, the coil holder 9110 can move upward from its initial position. When a reverse current is applied, the coil holder 9110 can move downward from its initial position. Alternatively, by adjusting the amount of the positive or reverse current, the distance moved from the initial position along a given direction can be increased or decreased.

[0130] The coil frame 9110 may have multiple upper support protrusions and lower support protrusions formed on its upper and lower surfaces. Each upper support protrusion may have a cylindrical or prismatic shape and may be coupled to and fixed to the upper elastic member 9150. Similar to the upper support protrusions, each lower support protrusion may have a cylindrical or prismatic shape and may be coupled to and fixed to the lower elastic member 9160.

[0131] The upper elastic member 9150 can be disposed above the coil holder 9110, and the lower elastic member 9160 can be disposed below the coil holder 9110. Here, the upper elastic member 9150 can be formed with a hole corresponding to the upper support protrusion, and the lower elastic member 9160 can be formed with a hole corresponding to the lower support protrusion. The corresponding support protrusions and corresponding holes can be fixedly coupled to each other by heat welding or by using an adhesive member such as epoxy resin.

[0132] The housing 9140 may be in the form of a hollow column to support the first magnet 9130, and may have a generally square shape. The first magnet 9130 and the support member 9220 may be coupled to and disposed on the side surface portion of the housing 9140, respectively.

[0133] Additionally, as described above, the coil holder 9110 can be disposed within the housing 9140 to move along a first direction under the guidance of the elastic members 9150 and 9160. In this embodiment, the first magnet 9130 can be disposed at a corner of the housing 9140, and the support member 9220 can be disposed on a side surface of the housing.

[0134] The upper elastic member 9150 and the lower elastic member 9160 can elastically support the upward and / or downward movement of the coil frame 9110 along a first direction. The upper elastic member 9150 and the lower elastic member 9160 can be leaf springs.

[0135] As shown in Figure 2, the upper elastic member 9150 may include two separate members. Through the double-segment structure, each separate portion of the upper elastic member 9150 can receive currents with different polarities or different voltages. In an alternative embodiment, the lower elastic member 9160 may have a double-segment structure, and the upper elastic member 9150 may have a one-piece structure.

[0136] Meanwhile, the upper elastic member 9150, the lower elastic member 9160, the coil frame 9110, and the housing 9140 can be assembled by joining operations such as heat welding and / or using adhesives. In this case, for example, they are fixed by heat welding, and then fixed by joining using adhesives.

[0137] A base 9210 can be disposed below the coil holder 9110, and the base 9210 can have a substantially square shape. A printed circuit board 9250 can be disposed on the base, and the lower side of the support member 9220 can be fixed to the base. Additionally, the base 9210 can have a mounting recess 9214 for the support member 9220 formed in its upper surface, allowing the support member 9220 to be inserted into the mounting recess. Adhesive can be applied to the mounting recess 9214 for the support member 9220 to immovably fix the support member 9220.

[0138] The base 9210 may have a support groove formed in the portion of its face facing the printed circuit board 9250 on which a terminal surface 9253 is formed, the size of the support groove corresponding to the size of the terminal surface. The support groove is recessed to a predetermined depth from the outer peripheral surface of the base 9210, thereby preventing the portion on which the terminal surface 9253 is formed from protruding outward, or thereby adjusting the degree of protrusion of that portion.

[0139] The support member 9220 may be disposed on a side surface of the housing 9140, and may be coupled to the housing 9140 on its upper side and to the base 9210 on its lower side. The support member may support the coil holder 9110 and the housing 9140 so that the coil holder 9110 and the housing 9140 are movable along a second direction and a third direction orthogonal to the first direction, and the support member may be electrically connected to the first coil 9120.

[0140] Since the support member 9220 according to this embodiment is disposed on each outer surface of the square housing 9140, a total of four support members can be provided in a symmetrical arrangement. However, this disclosure is not limited to this, and a total of eight support members can be provided, including two support members disposed on each straight surface. In addition, the support member 9220 can be electrically connected to the upper elastic member 9150, or can be electrically connected to the straight surface of the upper elastic member 9150.

[0141] Furthermore, since the support member 9220 and the upper elastic member 9150 are formed separately, the support member 9220 and the upper elastic member 9150 can be electrically connected to each other using conductive adhesive, solder, or the like. Therefore, the upper elastic member 9150 can apply current to the first coil 9120 via the support member 9220, which is electrically connected to it.

[0142] at the same time, Figure 4 A support member 9220 having a plate shape is shown by way of example, but this disclosure is not limited thereto. That is, the support member may have a linear shape.

[0143] The second coil 9230 can move the housing 9140 along a second direction and / or a third direction via electromagnetic interaction with the first magnet 9130, thereby enabling hand shake compensation.

[0144] Here, the second and third directions can include not only the x-axis and y-axis directions, but also directions substantially close to the x-axis and y-axis directions. That is, when viewed from a driving perspective in this embodiment, the housing 9140 can move in a direction parallel to the x-axis and y-axis, but when moving while supported by the support member 9220, the housing 9140 can move in a direction slightly inclined to the x-axis and y-axis.

[0145] Additionally, it may be necessary to position the first magnet 9130 at a location corresponding to the second coil 9230.

[0146] The second coil 9230 may be positioned facing the first magnet 9130 fixed to the housing 9140. In one embodiment, the second coil 9230 may be disposed outside the first magnet 9130. Alternatively, the second coil 9230 may be spaced downwards from the first magnet 9130 at a constant distance.

[0147] According to this embodiment, a total of four second coils 9230 can be provided at the four corners of the circuit member 9231, but it is not limited to this. Only two second coils can be provided along the second direction and the third direction, or more than four second coils can be provided.

[0148] In this embodiment, the circuit member 9231 may be formed with a circuit pattern in the form of a second coil 9230, and a separate second coil may be additionally provided above the circuit member 9231, but is not limited thereto. Instead of forming a circuit pattern in the form of a second coil 9230, the second coil 9230 may be provided separately above the circuit member 9231.

[0149] Alternatively, the second coil 9230 can be configured by winding the wire into a loop shape, or it can be formed into an FP coil shape for electrical connection to the printed circuit board 9250.

[0150] The second coil 9230 can be disposed above the base 9210 and below the housing 9140. Here, the circuit component 9231 including the second coil 9230 can be disposed on the upper surface of the printed circuit board 9250 disposed above the base 9210.

[0151] However, this disclosure is not limited thereto. The second coil 9230 may be configured to be in close contact with the base 9210, or the second coil 9230 may be spaced apart from the base by a predetermined distance. Alternatively, the second coil may be formed on a separate board, such that the boards are stacked and connected to the printed circuit board 9250.

[0152] The printed circuit board 9250 can be coupled to the upper surface of the base 9210, and as... Figure 4 As shown, a hole or groove can be formed in the support member 9220 at a position corresponding to the mounting recess 9214 to expose the mounting recess.

[0153] The printed circuit board 9250 may have terminal surfaces 9253 formed by bending, such that terminals 9251 are disposed on the terminal surfaces. This embodiment shows a printed circuit board 9250 formed by two bent terminal surfaces 9253. Multiple terminals 9251 may be disposed on each terminal surface 9253, and current may be supplied to the first coil 9120 and the second coil upon receiving an external voltage. The number of terminals formed on the terminal surfaces 9253 may be increased or decreased depending on the components to be controlled. Alternatively, the printed circuit board 9250 may include one terminal surface 9253 or three or more terminal surfaces.

[0154] The cover member 9300 may have a generally box-shaped shape, and may house, for example, a portion of the aforementioned movable unit, second coil 9230, and printed circuit board 9250, and may be coupled to the base 9210. The cover member 9300 may protect, for example, the movable unit, second coil 9230, and printed circuit board 9250 housed therein, and more specifically, the cover member 9300 may limit the outward leakage of electromagnetic fields generated, for example, by the first magnet 9130, first coil 9120, and second coil 9230 therein, thereby enabling the electromagnetic field to be focused.

[0155] Figure 5 This is an exploded perspective view showing a base 9210, a printed circuit board 9250, and a second coil 9230 according to one embodiment. The lens driving device may also include a position sensor 9240.

[0156] The position sensor 9240 can be located at the center of the second coil 9230 and can sense the movement of the housing 9140. Here, the position sensor 9240 can substantially sense the movement of the housing 9140 along a first direction, and in some cases, it can sense the movement of the housing 9140 along a second direction and a third direction.

[0157] The position sensor 9240 can be, for example, a Hall sensor, or any other sensor capable of sensing changes in magnetic force. Figure 5 As shown, a total of two position sensors 9240 can be mounted on the corner of the base 9210 located below the printed circuit board 9250. The mounted position sensors 9240 can be inserted into and disposed in the position sensor mounting recess 9215 formed in the base 9210. The lower surface of the printed circuit board 9250 can face the surface on which the second coil 9230 is disposed.

[0158] Meanwhile, the position sensor 9240 can be spaced downwards from the second coil 9230 by a constant distance, wherein the printed circuit board 9250 is inserted between the position sensor 9240 and the second coil 9230. That is, the position sensor 9240 may not be directly connected to the second coil 9230, the second coil 9230 may be disposed on the upper surface of the printed circuit board 9250, and the position sensor 9240 may be disposed on the lower surface of the printed circuit board.

[0159] Furthermore, the lens driving device according to the above embodiments can be used in various fields, such as camera device modules. For example, camera device modules can be applied to mobile devices such as cellular phones.

[0160] The camera device module according to the embodiment may include a lens barrel 9111 coupled to a coil holder 9110 and an image sensor 9500. Here, the lens barrel 9111 may include at least one lens element that transmits an image to the image sensor 9500.

[0161] Additionally, the camera module may include an infrared cutoff filter (not shown). The infrared cutoff filter is used to prevent light in the infrared range from incident on the image sensor 9500.

[0162] In this case, the infrared cutoff filter can be set to... Figure 3 The base 9210 shown is located at a position corresponding to the image sensor 9500 and can be coupled to a retaining member (not shown). Additionally, the retaining member can support the lower side of the base 9210.

[0163] The base 9210 may be provided with terminal components for electrical conduction with the printed circuit board 9250, and the base 9210 and the terminals may be integrally formed using surface electrodes or the like.

[0164] Additionally, the base may include an adhesive member 9211 for adhering the printed circuit board 9250 to the base 9210.

[0165] The adhesive member 9211 can be disposed on one side surface of the base 9210, and can be disposed at a position where one side surface of the base 9210 contacts one side surface of the printed circuit board 9250, as shown in the figure.

[0166] In this embodiment, the adhesive member 9211 is shown as being disposed on one surface of the base 9210, but the adhesive member 9211 may also be disposed on a surface facing the surface on which the adhesive member 9211 is disposed.

[0167] The adhesive member 9211 shown in this embodiment is given by way of example only, and the position and number of adhesive members 9211 can be appropriately selected as long as the printed circuit board 9250 is adhered to the base 9210 by the adhesive member.

[0168] To adhere the base 9210 and the printed circuit board 9250 to each other, an adhesive member 9211 may be disposed on one surface of the base 9210. When the amount of adhesive member 9211 is small, the adhesion between the base 9210 and the printed circuit board 9250 may decrease, causing the printed circuit board 9250 to separate from the base 9210. When the amount of adhesive member 9211 is large, the adhesive member 9211 may enter the mounting recess 9214, making it difficult for the support member 8220 to be precisely coupled to the mounting recess 9214.

[0169] Therefore, the mounting recess 9214 in the base 9210 may also be provided with a stepped portion to prevent the adhesive member 9211 from entering the mounting recess 9214.

[0170] The step portion may include: at least one side surface portion 92143 forming a side surface of the step portion; a lower surface portion 92142 forming a lower surface of the step portion; and a step space 92141 defined by the side surface portion 92143 and the lower surface portion 92142 and accommodating the adhesive member 9211 therein.

[0171] The cross-section of the lower surface portion 92142 of the stepped space 92141 can be a flat surface shape.

[0172] In addition, the cross section of the lower surface portion 92142 of the stepped space 92141 may have a shape that protrudes along a first direction orthogonal to the lower surface portion 92142.

[0173] Because the cross-section of the lower surface portion 92142 of the stepped space 92141 has a shape that protrudes along a first direction orthogonal to the lower surface portion 92142, the adhesive member 9211 gathers to the opposite side surface of the lower surface portion 92142, which can more effectively prevent the adhesive member 9211 from entering the mounting recess 9214.

[0174] In addition, the cross section of the lower surface portion 92142 of the stepped space 92141 may have a shape that is concave along a first direction orthogonal to the lower surface portion 92142.

[0175] Because the cross-section of the lower surface portion 92142 of the stepped space 92141 has a shape that is concave along a first direction orthogonal to the lower surface portion 92142, the adhesive member 9211 gathers at the center of the lower surface portion 92142, which can more effectively prevent the adhesive member 9211 from entering the mounting recess 9214.

[0176] In addition, the cross-section of the lower surface portion 92142 of the stepped space 92141 can have a sinusoidal shape.

[0177] Because the cross-section of the lower surface portion 92142 of the stepped space 92141 has a sinusoidal shape, the adhesive member 9211 gathers into the multiple recesses formed in the lower surface portion 92142, which can more effectively prevent the adhesive member 9211 from entering the mounting recess 9214.

[0178] Furthermore, although only one step section is provided in this embodiment, multiple step sections can be provided.

[0179] By providing multiple stepped portions, the space that can accommodate the adhesive member 9211 can be doubled or tripled, and therefore, the adhesive member 9211 can be more effectively prevented from entering the mounting recess 9214.

[0180] The lower surface portion 92142 may also include a plurality of protruding members 2144.

[0181] The protruding member 2144 can protrude upward from the lower surface portion 92142 to a predetermined height.

[0182] The protruding member 2144 provided on the lower surface portion 92142 can increase the resistance to the movement of the adhesive member 9211 introduced into the step portion, thereby more effectively preventing the adhesive member 9211 introduced into the step portion from entering the mounting recess 9214.

[0183] The protruding member 2144 is shown in the figures as having a hemispherical shape, but this is given by way of example only, and the protruding member 2144 may have a conical or polygonal shape.

[0184] Meanwhile, the base 9210 can also serve as a sensor holder to protect the image sensor. In this case, the base 9210 may be formed with a protrusion projecting downward along the side surface. However, this may not be necessary, and although not shown, a separate sensor holder can be provided below the base 9210 to perform the function of the protrusion.

[0185] Figure 6 The coupling relationship between the lens barrel and the coil holder in the lens driving device according to this embodiment is shown.

[0186] Reference Figure 6 The lens driving device of this embodiment may include: a lens barrel 9111, which includes at least one lens; and a coil holder 9110, which provides space for accommodating the lens barrel 9111 therein and has a hollow shape.

[0187] In this embodiment, the lens barrel 9111 can be assembled along the height direction from the upper surface to the lower surface of the coil frame 9110.

[0188] In order to prevent the lens barrel 9111 from separating from the coil frame 9110 along the height direction, or to prevent the lens barrel 9111 from tilting at a predetermined angle within the coil frame 9110, the lens driving device of this embodiment may also include a fixing part 9112 between the lens barrel 9111 and the coil frame 9110.

[0189] The fixed part 9112 may be an ultraviolet (UV) curable epoxy resin that is cured by ultraviolet light radiation, or it may be a thermosetting epoxy resin that is cured by thermal radiation.

[0190] With the lens barrel 9111 housed within the coil holder 9110, the fixing portion 9112 of this embodiment can be applied between the lens barrel 9111 and the coil holder 9110.

[0191] After the fixing portion 9112 is applied between the lens barrel 9111 and the coil holder 9110, the fixing portion 9112 is irradiated with ultraviolet (UV) light and cured to fix the lens barrel 9111 housed in the coil holder 9110, thereby preventing the lens barrel 9111 from separating from or tilting the coil holder 9110, which can prevent the resolution of the camera module from deteriorating.

[0192] The lens barrel 9111 of this embodiment may also include a lens barrel rib 91111 that protrudes a predetermined height from the outer peripheral surface of the lens barrel 9111.

[0193] The upper surface of the lens barrel rib 91111 can be located at a position lower than the lower surface of the fixed part 9112.

[0194] For example, one end face of the fixing portion 9112 can be configured to contact the inner surface of the coil holder 9110, and the other end face of the fixing portion 9112 can be configured to contact the outer surface of the lens barrel 9111. The lower surface of the fixing portion 9112 can be configured to contact the surface of the lens barrel rib 91111.

[0195] When the fixing part 9112 is set or applied between the lens barrel 9111 and the coil holder 9110, the lens barrel rib 91111 can prevent the fixing part 9112 from shifting downward from the preset position, thereby ensuring that the fixing part 9112 is set or applied in the desired position.

[0196] In the case of the lens driving device of this embodiment, in order to allow the lens barrel 9111 to be inserted into the coil holder 9110, the outer peripheral surface of the lens barrel 9111 can be spaced apart from the inner peripheral surface of the coil holder 9110 by a predetermined distance, and a fixing portion 9112 can be provided between the outer peripheral surface of the lens barrel 9111 and the inner peripheral surface of the coil holder 9110.

[0197] However, although the fixing part 9112, which is cured by ultraviolet light or heat, has a predetermined adhesive force, when the lens driving device of this embodiment is subjected to the impact test as described above, the lens driving device may be subjected to an impact that is stronger than the adhesive force of the fixing part 9112. As a result, the lens barrel 9111 inserted into the coil frame 9110 may separate from the coil frame 9110, or the lens barrel 9111 may tilt inside the coil frame.

[0198] In the following text, reference will be made to Figures 7 to 9 A lens driving device is described, which can more effectively prevent the lens barrel 9111 from separating from the coil holder 9110 and prevent the lens barrel 9111 from tilting within the coil holder 9110.

[0199] Figure 7 An exploded perspective view of the lens barrel, coil holder, and fixing part of a lens driving device according to another embodiment is shown. Figure 8 The coupling relationship between the lens barrel and the coil holder in the lens driving device according to this embodiment is shown.

[0200] Reference Figure 7 and Figure 8 The lens driving device of this embodiment may include: a lens barrel 9111, which includes at least one lens; a coil holder 9110, which provides space for accommodating the lens barrel 9111 and has a hollow shape; and a fixing portion 9112, which is disposed between the lens barrel 9111 and the coil holder 9110 to prevent the lens barrel 9111 from separating from the coil holder 9110 in the height direction and to prevent the lens barrel 9111 from tilting at a predetermined angle within the coil holder 9110.

[0201] The fixed part 9112 may be an ultraviolet (UV) curable epoxy resin that is cured by ultraviolet light irradiation, or it may be a thermosetting epoxy resin that is cured by thermal radiation.

[0202] and Figure 6 Unlike the lens driving device shown, the coil holder 9110 may also include a coil holder rib 91101 that protrudes inward to a predetermined height, and the fixing part 9112 may have: one end configured to contact the surface of the coil holder rib 91101; and the other end configured to contact the surface of the lens barrel 9111.

[0203] When the coil frame rib 91101 protrudes a predetermined height from the inner surface of the coil frame 9110, the coil frame 9110 can apply a compressive force to the fixing portion 9112, which is configured to contact the surface of the coil frame rib 91101. This allows the lens barrel 9111 to be more effectively fixed within the coil frame 9110.

[0204] Furthermore, since the fixing portion 9112 can be configured to contact both the upper and lower surfaces of the coil frame rib 91101 that is configured to protrude inward, when an impact is applied to the lens driving device of this embodiment in a direction orthogonal to the upper or lower surface of the lens barrel 9111 after the fixing portion 9112 has solidified, the coupling between the upper or lower surface of the protruding coil frame rib 91101 and the fixing portion 9112 configured to contact the upper or lower surface can provide a more stable structure to resist external impacts.

[0205] The coil frame rib 91101 may have a strip shape and may be disposed on the inner peripheral surface of the coil frame 9110 to have a hollow cross-sectional shape as shown. Alternatively, a plurality of coil frame ribs 91101 may be spaced apart from each other by a predetermined distance on the inner peripheral surface of the coil frame 9110.

[0206] Although the above embodiment shows that the coil frame rib 91101 is provided on the coil frame 9110 to protrude inward and the outer surface of the lens barrel 9111 is a flat surface, unlike this, the lens barrel rib can be provided on the outer surface of the lens barrel 9111 to protrude outward to a predetermined height, and the inner surface of the coil frame 9110 can be a flat surface.

[0207] In addition to the coil holder 9110, the lens barrel 9111 may include additional structures that apply compressive force to the fixed portion 9112. This will be referred to below. Figure 9 Describe it.

[0208] Figure 9 It shows Figure 8 Various implementations of region "A" shown.

[0209] Reference Figure 9 The lens barrel 9111 of the lens driving device in this embodiment may include: a lens barrel rib 91111 ( Figure 9 (a)), which protrudes a predetermined height outward from the lens barrel 9111; and the lens barrel recess 91112 ( Figure 9 (b) is formed at a predetermined depth in the lens barrel 9111.

[0210] When the lens barrel 9111 includes a lens barrel rib 91111 or a lens barrel recess 91112, the lens barrel 9111 housed in the coil holder 9110 can be more effectively prevented from undergoing a predetermined displacement in a direction orthogonal to the upper or lower surface of the lens barrel 9111.

[0211] In addition, the lens barrel rib 91111 or the lens barrel recess 91112 may have a rectangular cross-sectional shape as shown in the figure, but is not limited thereto, and can be modified in various ways according to the user's needs.

[0212] For example, such as Figure 9 As shown in (c), the contact surface of the portion of the lens barrel 9111 that contacts the surface of the fixed portion 9112 may have a sinusoidal shape.

[0213] That is, when the lens barrel 9111 does not have the aforementioned lens barrel rib 91111 or lens barrel recess 91112, the contact surface of the lens barrel 9111 that contacts the fixing portion 9112 can have a sinusoidal shape. When the lens barrel 9111 has the lens barrel rib 91111 or lens barrel recess 91112, the contact surface of the lens barrel rib 91111 or lens barrel recess 91112 that contacts the fixing portion 9112 can have a sinusoidal shape.

[0214] This is used to increase the contact area with respect to the fixing part 9112, thereby allowing the lens barrel 9111 to be more effectively fixed to the coil holder 9110.

[0215] Figure 10 This is a schematic perspective view of a lens driving device according to yet another embodiment. Figure 11 This is an exploded perspective view showing the lens driving device according to this embodiment.

[0216] like Figure 11 As shown, the lens driving device according to this embodiment may include a movable unit. Here, the movable unit can perform lens autofocus function and image stabilization function. The movable unit may include a coil holder 8110, a first coil 8120, a first magnet 8130, a housing 8140, an upper elastic member 8150, and a lower elastic member 8160.

[0217] A coil holder 8110 has a first coil 8120 disposed on its outer peripheral surface, the first coil 8120 being disposed inside the first magnet 8130. The coil holder can be disposed within the internal space of the housing 8140 so as to be able to reciprocate in a first direction through the electromagnetic interaction between the first magnet 8130 and the first coil 8120. The first coil 8120 can be disposed on the outer peripheral surface of the coil holder 8110 to electromagnetically interact with the first magnet 8130.

[0218] In addition, the coil holder 8110 can be elastically supported by the upper elastic member 8150 and the lower elastic member 8160, and can move along the first direction to perform the autofocus function.

[0219] The coil holder 8110 may include a lens barrel 8400 in which at least one lens is disposed (see...). Figure 12 The lens barrel 8400 can be coupled inside the coil holder 8110 in various ways.

[0220] For example, an internal thread can be formed in the inner peripheral surface of the coil holder 8110, and an external thread can be formed in the outer peripheral surface of the lens barrel 8400 to correspond to the internal thread, so that the lens barrel 8400 can be coupled to the coil holder 8110 by a threaded connection.

[0221] However, this disclosure is not limited thereto. Instead of forming threads in the inner circumferential surface of the coil holder 8110, the lens barrel 8400 can be directly fixed to the inner side of the coil holder 8110 by methods other than threaded connection. Alternatively, without the lens barrel 8400, one or more lenses can be integrally formed with the coil holder 8110.

[0222] The autofocus function is controlled based on the direction of the current. The autofocus function can be achieved by moving the coil holder 8110 along a first direction. For example, when a positive current is applied, the coil holder 8110 can move upward from its initial position. When a reverse current is applied, the coil holder 8110 can move downward from its initial position.

[0223] Alternatively, by adjusting the amount of forward or reverse current, the distance moved from the initial position in a given direction can be increased or decreased.

[0224] The coil frame 8110 may have multiple upper support protrusions and lower support protrusions formed on its upper and lower surfaces. Each upper support protrusion may have a cylindrical or prismatic shape and may be coupled to and fixed to the upper elastic member 8150.

[0225] Similar to the upper support protrusion, each lower support protrusion may have a cylindrical or prismatic shape and may be coupled and fixed to the lower elastic member 8160.

[0226] Here, the upper elastic member 8150 may have a hole corresponding to the upper support protrusion, and the lower elastic member 8160 may have a hole corresponding to the lower support protrusion. The corresponding support protrusion and the corresponding hole may be fixedly coupled to each other by heat welding or by using an adhesive member such as epoxy resin.

[0227] The housing 8140 may be in the form of a hollow column to support the first magnet 8130, and may have a substantially square shape. The first magnet 8130 and the support member 8220 may be coupled to and disposed on the side surface portion of the housing 8140, respectively.

[0228] Additionally, as described above, the coil holder 8110 can be disposed within the housing 8140 to move along a first direction under the guidance of the elastic members 8150 and 8160. In this embodiment, the first magnet 8130 can be disposed at a corner of the housing 8140, and the support member 8220 can be disposed on a side surface of the housing.

[0229] The upper elastic member 8150 may be disposed above the coil frame 8110, and the lower elastic member 8160 may be disposed below the coil frame 8110. The upper elastic member 8150 and the lower elastic member 8160 may elastically support the coil frame 8110 to move upward and / or downward in a first direction. The upper elastic member 8150 and the lower elastic member 8160 may be leaf springs.

[0230] like Figure 11 As shown, the upper elastic member 8150 may include two separate members. Through the double-segment structure, each separate portion of the upper elastic member 8150 can receive currents of different polarities or different voltages. In an alternative embodiment, the lower elastic member 8160 may have a double-segment structure, and the upper elastic member 8150 may have a one-piece structure.

[0231] Meanwhile, the upper elastic member 8150, the lower elastic member 8160, the coil frame 8110, and the housing 8140 can be assembled by joining operations such as heat welding and / or using adhesives. In this case, for example, they are fixed by heat welding, and then fixed by joining using adhesives.

[0232] A base 8210 can be provided below the coil holder 8110, and the base 8210 can have a generally square shape. A printed circuit board 8250 can be provided on the base, and the lower side of the support member 8220 can be fixed to the base. In addition, the base 8210 can have a mounting recess 8214 for the support member 8220 formed in its upper surface, so that the support member 8220 can be inserted into the mounting recess. Adhesive can be applied to the mounting recess 8214 for the support member 8220 to immovably fix the support member 8220.

[0233] The base 8210 may have a support groove formed in the portion of its face facing the printed circuit board 8250 on which a terminal surface 8253 is formed, the size of which corresponds to the size of the terminal surface. The support groove is recessed to a predetermined depth from the outer peripheral surface of the base 8210, thereby preventing the portion on which the terminal surface 8253 is formed from protruding outward, or thereby adjusting the degree of protrusion of the portion.

[0234] The support member 8220 may be disposed on a side surface of the housing 8140, and may be coupled to the housing 8140 on its upper side and to the base 8210 on its lower side. The support member may support the coil holder 8110 and the housing 8140 so that the coil holder 8110 and the housing 8140 are movable along a second direction and a third direction orthogonal to the first direction, and the support member may be electrically connected to the first coil 8120.

[0235] Since the support members 8220 according to this embodiment are disposed on each outer surface of the square housing 8140, a total of four support members can be provided in a symmetrical arrangement. However, this disclosure is not limited thereto, and a total of eight support members can be provided, including two support members that can be provided for each flat surface.

[0236] In addition, the support member 8220 can be electrically connected to the upper elastic member 8150, or can be electrically connected to the flat surface of the upper elastic member 8150.

[0237] Furthermore, since the support member 8220 and the upper elastic member 8150 are formed separately, the support member 8220 and the upper elastic member 8150 can be electrically connected to each other using conductive adhesive, solder, or the like. Therefore, the upper elastic member 8150 can apply current to the first coil 8120 via the support member 8220, which is electrically connected to it.

[0238] at the same time, Figure 11 A support member 8220 having a plate shape is shown by way of example, but this disclosure is not limited thereto. That is, the support member may have a linear shape.

[0239] The second coil 8230 can move the housing 8140 along a second direction and / or a third direction through electromagnetic interaction with the first magnet 8130, thereby enabling hand shake compensation.

[0240] Here, the second and third directions can include not only the x-axis and y-axis directions, but also directions substantially close to the x-axis and y-axis directions. That is, when viewed from a driving perspective in this embodiment, the housing 8140 can move in a direction parallel to the x-axis and y-axis, but when moving while supported by the support member 8220, the housing 8140 can move in a direction slightly inclined to the x-axis and y-axis.

[0241] Additionally, it may be necessary to place the first magnet 8130 at the position corresponding to the second coil 8230.

[0242] The second coil 8230 can be positioned opposite the first magnet 8130 fixed to the housing 8140. In one embodiment, the second coil 8230 can be disposed outside the first magnet 8130. Alternatively, the second coil 8230 can be spaced downwards from the first magnet 8130 at a constant distance.

[0243] According to this embodiment, a total of four second coils 8230 can be respectively disposed at the four corners of the circuit member 8231, but are not limited thereto. Only two second coils can be disposed along the second direction and the third direction respectively, or more than four second coils can be disposed.

[0244] In this embodiment, the circuit member 8231 may be formed with a circuit pattern in the form of a second coil 8230, and a separate second coil may be additionally provided above the circuit member 8231, but is not limited thereto. Instead of forming a circuit pattern in the form of a second coil 8230, the second coil 8230 may be provided separately above the circuit member 8231.

[0245] Alternatively, the second coil 8230 can be configured by winding the wire into a loop shape, or it can be formed into an FP coil shape for electrical connection to the printed circuit board 8250.

[0246] The second coil 8230 can be disposed above the base 8210 and below the housing 8140. Here, the circuit component 8231 including the second coil 8230 can be disposed on the upper surface of the printed circuit board 8250 disposed above the base 8210.

[0247] However, this disclosure is not limited thereto. The second coil 8230 may be configured to be in close contact with the base 8210, the second coil 8230 may be spaced apart from the base by a predetermined distance, or the second coil 8230 may be formed on a separate board, such that the boards may be stacked and connected to the printed circuit board 8250.

[0248] The printed circuit board 8250 can be coupled to the upper surface of the base 8210, and as... Figure 11 As shown, a hole or groove may be formed in the support member 8220 at a position corresponding to the mounting recess 8214 to expose the mounting recess.

[0249] The printed circuit board 8250 may have a terminal surface 8253 formed by bending, such that terminals 8251 are disposed on the terminal surface. This embodiment shows a printed circuit board 8250 having two bent terminal surfaces 8253. A plurality of terminals 8251 may be disposed on each terminal surface 8253, and current may be supplied to the first coil 8120 and the second coil when an external voltage is received.

[0250] The number of terminals formed on terminal surface 8253 can be increased or decreased depending on the components to be controlled. Additionally, printed circuit board 8250 may include one terminal surface 8253 or three or more terminal surfaces.

[0251] The cover member 8300 may have a substantially box-shaped shape, and may house, for example, the aforementioned movable unit, the second coil 8230, and a portion of the printed circuit board 8250, and may be coupled to the base 8210.

[0252] The cover member 8300 can protect, for example, the movable unit, the second coil 8230 and the printed circuit board 8250 housed therein, and more specifically, the cover member 8300 can limit the leakage of electromagnetic fields generated by the first magnet 8130, the first coil 8120, the second coil 8230, etc. therein, thereby enabling the electromagnetic fields to be focused.

[0253] Figure 12 This is a view showing a lens barrel 8400 according to one embodiment. A lens element may be coupled to the lens barrel 8400, or two or more lens elements may constitute an optical system.

[0254] The lens barrel 8400 may include a coupling protrusion 84100 and a bevel 84200. At least one coupling protrusion 84100 may be formed on the outer peripheral surface of the lens barrel 8400 and may be inserted into a coupling recess 81100 formed in the coil holder 8110, as will be described below.

[0255] To increase the coupling force between the coil holder 8110 and the lens barrel 8400, multiple coupling protrusions 84100 can be provided. For example, such as Figure 12 As shown, a pair of coupled protrusions can be formed on the outer peripheral surface of the lens barrel 8400 at positions symmetrical to each other about the center of the lens barrel 8400.

[0256] The coupling protrusion 84100 is coupled to the coupling recess 81100 to couple the coil holder 8110 and the lens barrel 8400 to each other, thereby increasing the coupling force between the coil holder 8110 and the lens barrel 8400. Therefore, the coupling protrusion is used to prevent the lens barrel 8400 from separating from the coil holder 8110, even when an external impact is applied to the lens drive device.

[0257] Therefore, more than three coupling protrusions 84100 can be provided on the outer peripheral surface of the lens barrel 8400 to further increase the coupling force between the coil holder 8110 and the lens barrel 8400.

[0258] Additionally, it is necessary to prevent external impacts from concentrating on specific portions of the coil holder 8110 or the lens barrel 8400. For this purpose, the coupling protrusions 84100 may need to be spaced at a constant distance from each other circumferentially on the outer peripheral surface of the lens barrel 8400.

[0259] Because the coupling protrusion 84100 is arranged symmetrically or radially about the center of the lens barrel 8400 when the coupling protrusion 84100 is configured to have the above structure, it can prevent the external impact from being concentrated on a specific part of the lens barrel 8400 or the coupling protrusion 84100 when an external impact is applied.

[0260] Meanwhile, when multiple coupling protrusions 84100 are provided on the outer peripheral surface of the lens barrel 8400, the number of coupling recesses 81100, which will be described below, can be the same as the number of coupling protrusions 84100, and the coupling recesses 81100 can be provided at positions corresponding to the coupling protrusions 84100.

[0261] like Figure 12 As shown in the attached drawings, when viewed from the accompanying drawings, the inclined surface 84200 can be formed above the coupling protrusion 84100 on the outer peripheral surface of the lens barrel 8400. The inclined surface 84200 can be formed at a position facing the step portion 81200, which will be described below, along a first direction.

[0262] When the inclined surface 84200 and the stepped portion 81200 are positioned facing each other and adhered to each other using adhesive g, the coil frame 8110 and the lens barrel 8400 can be coupled to each other using adhesive g. The structure in which the inclined surface 84200 and the stepped portion 81200 are coupled to each other using adhesive g will be described in detail below. The adhesive g can be, for example, epoxy resin or a thermosetting material.

[0263] Figure 13 This is a perspective view showing a coil holder 8110 according to one embodiment. Figure 13 As shown, the coil holder 8110 of this embodiment may include a coupling recess 81100 and a stepped portion 81200. The coupling recess 81100 may be formed in the inner peripheral surface of the coil holder 8110 and may be provided in the same number as the coupling protrusions 84100. The coupling recess is the portion in which the coupling protrusions 84100 are inserted.

[0264] As described above, when the coupling protrusion 84100 is inserted into the coupling recess 81100 to couple the coil holder 8110 and the lens barrel 8400 to each other, this can increase the coupling force between the coil holder 8110 and the lens barrel 8400.

[0265] The coupling recesses 81100 can be arranged in a number and position corresponding to the number and position of the coupling protrusions 84100. Therefore, when multiple coupling protrusions 84100 are provided and the coupling protrusions 84100 are arranged symmetrically or radially about the lens barrel 8400, multiple coupling recesses 81100 can be formed symmetrically or radially about the center of the coil holder 8110 in the inner peripheral surface of the coil holder 8110.

[0266] like Figure 13 As shown, the coupling recess 81100 may include a first recess 81110 and a second recess 81120. The first recess 81110 may be formed in the inner peripheral surface of the coil holder 8110 along a first direction. The second recess 81120 may be connected to the first recess 81110 and may be formed in the inner peripheral surface of the coil holder 8110 along a circumferential direction.

[0267] The first recess 81110 is the portion in which the coupling protrusion 84100 is inserted. Therefore, when viewing the accompanying drawings, the first recess 81110 may have an opening p formed in its lower surface, such that the coupling protrusion 84100 is inserted into the opening.

[0268] The second recess 81120 is the portion in which the coupling protrusion 84100, inserted through the first recess 81110, is fitted into the coupling recess 81100. That is, the coupling protrusion 84100 can be inserted into the first recess 81110 and then rotated by rotating the coil holder 8110 to fit into the second recess 81120. The method of coupling the coupling protrusion 84100 to the coupling recess 81100 will now be described in detail with reference to the accompanying drawings.

[0269] Meanwhile, the coupling recess 81100 can be formed by removing a portion of the inner circumferential surface of the coil frame 8110 or by injection molding. The thickness of the portion of the coil frame 8110 in which the coupling recess 81100 is formed may be reduced. Therefore, since the overall strength of the coil frame 8110 may be reduced, in order to prevent this, the coupling recess 81100 may be appropriately formed with a larger thickness in a specific portion of the coil frame 8110.

[0270] Furthermore, to prevent the strength of the coil frame 8110 from deteriorating due to the formation of the coupling recess 81100, the coil frame 8110 can be thickened in the portion where the coupling recess 81100 is formed. That is, the shape of this portion of the coil frame 8110 can be changed so that the portion forming the coupling recess 81100 is thicker than the rest.

[0271] like Figure 13 As shown in the attached drawings, the step portion 81200 may be disposed above the coupling recess 81100. That is, the coupling recess 81100 may be disposed below the step portion 81200, and the first recess 81110 may have an opening p formed in the lower surface of the coil holder 8110.

[0272] The step portion 81200 takes the form of a ring protruding from the inner circumferential surface of the coil frame 8110 in a circumferential direction, and a portion of the adhesive g that couples the lens barrel 8400 and the coil frame 8110 to each other can be adhered to a portion of the step portion.

[0273] For example, the step portion 81200 can serve the following functions. First, the step portion 81200 can increase the area of ​​the adhesive g's adhesion portion, thereby increasing the coupling force between the coil frame 8110 and the lens barrel 8400.

[0274] Furthermore, since the area of ​​the adhesive g's adhesion portion can be increased, the adhesive g can maintain sufficient adhesive force for the coil holder 8110. Therefore, even when continuous external impacts are applied to the lens drive device, the adhesive g is not easily separated from the coil holder 8110.

[0275] Furthermore, as described above, since the step portion 81200 is configured to face the inclined surface 84200 along the first direction, the size of the gap between the step portion 81200 and the inclined surface 84200 can be significantly reduced. Therefore, damage to the various components, including the image sensor (not shown), that occurs when uncured adhesive g is introduced into the lower side of the lens drive device through the gap can be prevented or significantly reduced.

[0276] Additionally, the step portion 81200 can be used as a stop for the lens barrel 8400. That is, when the adhesive g that couples the lens barrel 8400 and the coil holder 8110 to each other detaches due to continuous external impacts applied to the lens drive device, the step portion can prevent the lens barrel 8400 from excessively separating from the coil holder 8110.

[0277] That is, the step portion 81200 is configured to face the inclined surface 84200 along the first direction, and the first distance d1, which is the distance in the first direction between the step portion 81200 and the inclined surface 84200, is very small.

[0278] Therefore, with the above structure, even if the adhesive g detaches, the stepped portion 81200 can prevent the lens barrel 8400 from excessively separating upward from the coil holder 8110 in the first direction. The step portion 81200 as a blocking member will be described in detail below with reference to the accompanying drawings.

[0279] Figure 14 and Figure 15 This is a view used to illustrate the method of coupling the lens barrel 8400 to the coil holder 8100. Here, Figure 15 A coupling recess 81100 according to one embodiment is shown.

[0280] The lens barrel 8400 can be coupled to the coil holder 8110 by the following method. First, the lens barrel 8400 is inserted into the coil holder 8110 from the lower side along a first direction. At this time, the coupling protrusion 84100 and the first recess 81110 are aligned with each other so that the coupling protrusion 84100 can be inserted into the first recess 81110.

[0281] Subsequently, the coupling protrusion 84100 is inserted into the first recess 81110 of the coupling recess 81100 through the opening p in the first recess 81110. The lens barrel 8400 is continuously pushed upward in the first direction until the coupling protrusion 84100 reaches the second recess 81120.

[0282] Subsequently, once the coupling protrusion 84100 has reached the position of the second recess 81120, the lens barrel 8400 rotates about the first direction in a given direction relative to the winding frame 8110 to move away from the connection area of ​​the first recess 81110 and the second recess 81120.

[0283] At this time, after being inserted into the first recess 81110 along the first direction, the coupling protrusion 84100 can rotate about the first direction and be inserted into the second recess 81120 to fit into the second recess 81120.

[0284] Meanwhile, in order to enable the coupling protrusion 84100 to be smoothly coupled to the coupling protrusion 84100, the width of the first recess 81110 and the width w of the second recess 81120 can be greater than the diameter D of the coupling protrusion 84100.

[0285] When the coupling protrusion 84100 is installed in the second recess 81120 of the coupling recess 81100 through the above process, the lens barrel 8400 can be coupled to the coil holder 8110.

[0286] Using the above structure, in this embodiment, the coil frame 8110 and the lens barrel 8400 are coupled to each other by using the coupling protrusion 84100 and the coupling recess 81100. The coil frame 8110 and the lens barrel 8400 can remain coupled, even when the adhesive g that couples the coil frame 8110 and the lens barrel 8400 to each other is detached due to external impact.

[0287] At this time, the coupled lens barrel 8400 can move slightly relative to the coil holder 8110 in the first direction. Therefore, by using adhesive g to recouple the coil holder 8110 and the lens barrel 8400 to each other, movement of the lens barrel 8400 relative to the coil holder 8100 in the first direction can be prevented. The coupling structure of the coil holder 8110 and the lens barrel 8400 using adhesive g will be described below.

[0288] Figure 16 This is a cross-sectional view showing the coil holder 8110 and the lens barrel 8400 coupled to each other. (See diagram below.) Figure 16 As shown, the step portion 81200 can be disposed at a position where it faces the inclined surface 84200 formed on the outer peripheral surface of the lens barrel 8400 along the first direction.

[0289] In the above structure, adhesive g can be applied to both the stepped portion 81200 and the inclined surface 84200, so that the upper and side surfaces of the stepped portion 81200 can be coupled to the inclined surface 84200. Since the applied adhesive g is movable before curing, a portion of the adhesive g can be introduced into the lower part of the stepped portion 81200 through the gap between the stepped portion 81200 and the inclined surface 84200.

[0290] A portion of the adhesive g introduced into the lower part of the step portion 81200 through the gap has been cured, thus increasing the bonding area between the coil frame 8110 and the lens barrel 8400. Furthermore, since the gap is formed to have a very small size due to the presence of the step portion 81200, excessive adhesive g can be prevented from being introduced into the lens drive mechanism through the gap.

[0291] Using the above structure, in this embodiment, the adhesive g can increase the coupling area between the coil frame 8110 and the lens barrel 8400, and thus can increase the coupling force between the coil frame 8110 and the lens barrel 8400.

[0292] Furthermore, since the gap formed in the portion on which the adhesive g is applied has a very small size due to the step portion 81200, the amount of adhesive g that moves into the lens drive device through the gap can be significantly reduced, thereby preventing damage to the image sensor and other components due to the adhesive g introduced into the lens drive device through the gap.

[0293] In the following text, reference will be made to Figure 15 and Figure 16 Describe the function of the stepped portion 81200 as a blocking element for the lens barrel 8400. For example... Figure 16 As shown, the first distance d1 can be measured as the first directional distance between the step portion 81200 and the inclined surface 84200.

[0294] At the same time, refer to Figure 15 The second distance d2 can be calculated using the following formula.

[0295] Formula 1

[0296] d2=wD

[0297] That is, the second distance d2 can be regarded as the difference between the width w of the second recess 81120 and the diameter D of the coupling protrusion 84100.

[0298] In this embodiment, the first distance d1 can be smaller than the second distance d2. Using this structure, the stepped portion 81200 can effectively serve as a stop for the lens barrel 8400 when the adhesive g detaches due to external impact.

[0299] That is, when the cured adhesive g detaches due to an external impact applied to the lens drive device and does not adhere to the coil frame 8110 and the lens barrel 8400, the lens barrel 8400 can move relative to the coil frame 8110 in a first direction, and the maximum movable width can correspond to the second distance d2.

[0300] The width w of the second recess 81120 can be slightly larger to allow the coupling protrusion 84100 to be smoothly coupled to the coupling recess 81100. When the width w of the second recess 81120 is greater than the diameter D of the coupling protrusion 84100, the second distance d2 can be increased accordingly.

[0301] If the second distance d2 is too large, the lens barrel 8400 may move excessively relative to the coil holder 8110 in the first direction when the adhesive g detaches. When the lens barrel 8400 moves excessively in the first direction, for example, the autofocus function of the lens drive device cannot be effectively utilized.

[0302] Therefore, due to malfunctions in the autofocus function, the quality of images captured by the camera module, including the lens drive mechanism, may be significantly degraded. Therefore, when the adhesive g detaches, it is necessary to prevent excessive movement of the lens barrel 8400 along the first direction.

[0303] In this embodiment, since the first distance d1 is less than the second distance d2, the distance by which the lens barrel 8400 moves upward in the first direction can be less than the second distance d2. This is because the step portion 81200 limits the distance by which the lens barrel 8400 moves upward in the first direction.

[0304] In this embodiment, since the first distance d1 is smaller than the second distance d2 to prevent excessive movement of the lens barrel 8400 along the first direction, the degradation of the quality of the captured image caused by any uncontrolled movement of the lens barrel 8400 can be prevented or significantly reduced.

[0305] Meanwhile, a separate blocking element can be provided on the coil holder 8110 or the lens barrel 8400 to limit the distance that the lens barrel 8400 moves downward in the first direction.

[0306] Figure 17 This is a view showing the coupling recess 81100 according to another embodiment. (See attached image.) Figure 17 As shown, in the coupling recess 81100 of this embodiment, the first width w1 of the portion of the second recess 81120 connected to the first recess 81110 is greater than the second width w2 of the end of the second recess 81120 spaced apart from the connecting portion. Furthermore, the second width w2 may be equal to or less than the diameter D of the coupling protrusion 84100.

[0307] Using the above structure, when the coupling protrusion 84100 is fully installed in the coupling recess 81100, the coupling protrusion can be tightly coupled to the second recess 81120. In this structure, even when the adhesive g detaches due to repeated external impacts, the coupling protrusion can remain tightly coupled to the second recess 81120.

[0308] Therefore, even when the adhesive g detaches, image quality degradation caused by arbitrary uncontrolled movement of the lens barrel 8400 relative to the coil holder 8110 in the first direction can be prevented or significantly reduced.

[0309] Figure 18 This is a figure illustrating a coupling recess 81100 according to another embodiment. In this embodiment, the first recess 81110 of the coupling recess 81100 may have an opening p formed in the upper surface of the coil holder 8110. In this configuration, when the lens barrel 8400 is coupled to the coil holder 8110, the lens barrel 8400 can be inserted from the upper side of the coil holder 8110 along a first direction.

[0310] In addition, Figure 18 In the implementation method, such as Figure 18 As shown, the stepped portion 81200 can be formed in the portion other than the portion where the first recess 81110 is formed. Figure 17At a location similar to the stepped section 81200 shown. Alternatively, it may not be necessary to form... Figure 17 The step section 81200 is shown.

[0311] exist Figure 18 In one embodiment, when the step portion 81200 is not formed, the adhesive g can be applied to the inner circumferential surface of the coil holder 8110 at a suitable position above the second recess 81120 to adhere the coil holder 8110 and the lens barrel 8400 to each other.

[0312] In addition, Figure 18 In one embodiment, when the stepped portion 81200 is formed, the adhesive g can be applied to the upper surface of the stepped portion 81200 to adhere the coil frame 8110 and the lens barrel 8400 to each other.

[0313] exist Figure 18 In this embodiment, regardless of whether a stepped portion 81200 is formed, in order to minimize the introduction of adhesive g into the lens drive device, adhesive g can be adhered to the inclined surface 84200 of the lens barrel 8400.

[0314] Figure 19 This is a view showing the coupling recess 81100 according to yet another embodiment. (See attached image.) Figure 19 As shown, the first recess 81110 of the coupling recess 81100 may have an opening p formed in the upper surface of the coil holder 8110.

[0315] Furthermore, the first width w1 of the portion of the second recess 81120 that connects to the first recess 81110 may be greater than the second width w2 of the end of the first recess 81110 that is spaced apart from the connecting portion. Additionally, the second width w2 may be equal to or less than the diameter D of the coupling protrusion 84100.

[0316] Using the above structure, when the coupling protrusion 84100 is fully installed in the coupling recess 81100, the coupling protrusion can be tightly coupled to the second recess 81120.

[0317] Furthermore, as described above, in this structure, even when the adhesive g detaches due to repeated external impacts, the coupling protrusion can remain tightly coupled to the second recess 81120.

[0318] Therefore, even when the adhesive g detaches, image quality degradation caused by arbitrary uncontrolled movement of the lens barrel 8400 relative to the coil holder 8110 in the first direction can be prevented or significantly reduced.

[0319] Furthermore, the lens driving device according to the above embodiments can be used in various fields, such as camera device modules. For example, camera device modules can be applied to mobile devices such as cellular phones.

[0320] The camera module according to this embodiment may include a lens barrel 8400 coupled to a coil holder 8110 and an image sensor (not shown). Here, the lens barrel 8400 may include at least one lens element for transmitting images to the image sensor.

[0321] Additionally, the camera module may include an infrared cutoff filter (not shown). The infrared cutoff filter is used to prevent light in the infrared range from incident on the image sensor.

[0322] In this case, the infrared cutoff filter can be set to... Figure 11 The base 8210 shown is located at a position corresponding to the image sensor and can be coupled to a retaining member (not shown). Additionally, the retaining member can support the lower side of the base 8210.

[0323] The base 8210 may be provided with terminal components for conducting electricity with the printed circuit board 8250, and the base 8210 and the terminals may be integrally formed using surface electrodes or the like.

[0324] Meanwhile, the base 8210 can also serve as a sensor holder to protect the image sensor. In this case, the base 8210 may be formed with a protrusion projecting downward along the side surface. However, this may not be necessary; although not shown, a separate sensor holder can be provided below the base 8210 to perform the function of the protrusion.

[0325] Figure 20 This is a perspective view showing a camera device module according to another embodiment. Figure 21 This is an exploded perspective view showing a lens driving device 7100 according to yet another embodiment.

[0326] like Figure 20 As shown, the camera device module according to this embodiment may include a lens driving device 7100, a filter holding member 7400, and a sensor holding member 7500.

[0327] The lens drive device 7100 may include a base 7210 disposed thereunder and attached to the filter holder 7400. As described above, the lens drive device 7100 can perform image stabilization and / or autofocus by moving an optical module composed of multiple lenses. The following will refer to... Figure 21 Describe the specific structure of the lens drive device 7100.

[0328] The filter holder 7400 can be adhered to the base 7210, and the filter 7410 can be mounted on the filter holder. The sensor holder 7500 can be disposed below the filter holder 7400, and the sensor holder 7500 can be configured to have a circuit board of the image sensor 7510 mounted thereon.

[0329] In addition to the image sensor 7510, the sensor holder 7500 may include: various drivers for driving the lens drive device 7100; and circuitry for receiving current from an external device or receiving electrical signals from an external device or sending electrical signals to an external device.

[0330] Therefore, the sensor holder 7500 can be a circuit board. Additionally, a connection plate 7600 can be coupled to the sensor holder 7500 for electrical connection between the sensor holder 7500 and an external device (e.g., a power supply, display device, or storage device).

[0331] The following will refer to Figure 22 The filter holder 7400 and the sensor holder 7500 are described in detail below with reference to the accompanying drawings.

[0332] like Figure 21 As shown, the lens driving device 7100 according to this embodiment may include a movable unit and a fixed part. Here, the movable unit can perform an autofocus function. The movable unit may include a coil holder 7110 and a first coil 7120, and the fixed part may include a first magnet 7130, a housing 7140, an upper elastic member 7150, and a lower elastic member 7160.

[0333] The coil holder 7110 can be disposed inside the housing 7140 to move along a first direction. The coil holder 7110 may include a first coil 7120 disposed on its outer peripheral surface to be disposed inside the first magnet 7130, and the coil holder 7110 can be disposed in the internal space of the housing 7140 to be reciprocating along the first direction through electromagnetic interaction between the first magnet 7130 and the first coil 7120. The first coil 7120 can be disposed on the outer peripheral surface of the coil holder 7110 to electromagnetically interact with the first magnet 7130.

[0334] In addition, the coil holder 7110 can be elastically supported by the upper elastic member 7150 and the lower elastic member 7160, and can perform autofocus function by moving along the first direction.

[0335] The coil holder 7110 may include a lens barrel (not shown) in which at least one lens is disposed. The lens barrel may be coupled within the coil holder 7110 in various ways.

[0336] For example, the lens barrel can be coupled to the coil holder 7110 using an adhesive. Alternatively, the lens barrel can be coupled to the coil holder 7110 via a threaded connection. Alternatively, without a lens barrel, one or more lenses can be integrally formed with the coil holder 7110.

[0337] A single lens element can be coupled to a lens barrel, or two or more lenses can form an optical system.

[0338] The autofocus function is controlled based on the direction of the current. The autofocus function can be achieved by moving the coil holder 7110 along a first direction. For example, when a positive current is applied, the coil holder 7110 can move upward from its initial position. When a reverse current is applied, the coil holder 7110 can move downward from its initial position. Alternatively, by adjusting the amount of the positive or reverse current, the distance moved from the initial position along a given direction can be increased or decreased.

[0339] The coil holder 7110 may have a plurality of upper support protrusions and lower support protrusions formed on its upper and lower surfaces. Each upper support protrusion may have a cylindrical or prismatic shape and may be coupled to and fixed to the upper elastic member 7150. In the same manner as the upper support protrusions, each lower support protrusion may have a cylindrical or prismatic shape and may be coupled to and fixed to the lower elastic member 7160.

[0340] Here, the upper elastic member 7150 may have a hole corresponding to the upper support protrusion, and the lower elastic member 7160 may have a hole corresponding to the lower support protrusion. The corresponding support protrusion and the corresponding hole may be fixedly coupled to each other by heat welding or by using an adhesive member such as epoxy resin.

[0341] The housing 7140 may be in the form of a hollow column to support the first magnet 7130, and may have a generally square shape. The first magnet 7130 may be coupled to and disposed on a side surface portion of the housing 7140. In addition, as described above, the coil holder 7110 may be configured to move along a first direction under the guidance of elastic members 7150 and 7160 within the housing 7140.

[0342] An upper elastic member 7150 may be disposed above the coil holder 7110, and a lower elastic member 7160 may be disposed below the coil holder 7110. The upper elastic member 7150 and the lower elastic member 7160 may be coupled to the housing 7140 and the coil holder 7110. The upper elastic member 7150 and the lower elastic member 7160 may elastically support upward and / or downward movement of the coil holder 7110 in a first direction. The upper elastic member 7150 and the lower elastic member 7160 may be leaf springs.

[0343] like Figure 21As shown, the upper elastic member 7150 may include multiple members that are separated from each other. Through the multi-segment structure, each separate portion of the upper elastic member 7150 can receive currents with different polarities or different voltages. Additionally, the lower elastic member 7160 may have a multi-segment structure and may be electrically connected to the upper elastic member 7150.

[0344] Meanwhile, the upper elastic member 7150, the lower elastic member 7160, the coil frame 7110, and the housing 7140 can be assembled by joining operations such as heat welding and / or using adhesives.

[0345] The base 7210 can be disposed below the coil holder 7110 and can have a generally square shape. The printed circuit board 7250 can be disposed on or mounted on the base.

[0346] The base 7210 may have a support groove formed in the portion of its face facing the printed circuit board 7250 on which a terminal surface 7253 is formed, the size of which corresponds to the size of the terminal surface. The support groove may be recessed to a predetermined depth from the outer peripheral surface of the base 7210, thereby preventing the portion on which the terminal surface 7253 is formed from protruding outward, or thereby adjusting the degree of protrusion of the portion.

[0347] The support member 7220 may be disposed on a side surface of the housing 7140 and spaced apart from the housing 7140, and may be coupled above it to the upper elastic member 7150 and below it to the base 7210, the printed circuit board 7250, or the circuit member 7231. The support member may support the coil holder 7110 and the housing 7140 to be movable along a second direction orthogonal to the first direction and / or a third direction, and the support member may be electrically connected to the first coil 7120.

[0348] Since the support members 7220 according to this embodiment are provided on the outer surface of each corner of the housing 7140, a total of four support members can be arranged symmetrically. Furthermore, the support members 7220 can be electrically connected to the upper elastic member 7150. That is, for example, the support members 7220 can be electrically connected to the portion of the upper elastic member 7150 in which through holes are formed.

[0349] Furthermore, since the support member 7220 and the upper elastic member 7150 are formed separately, the support member 7220 and the upper elastic member 7150 can be electrically connected to each other using conductive adhesive, solder, or the like. Therefore, the upper elastic member 7150 can apply current to the first coil 7120 via the support member 7220, which is electrically connected to it.

[0350] The support member 7220 can be connected to the printed circuit board 7250 through holes formed in the circuit member 7231 and the printed circuit board 7250. Alternatively, holes may not be formed in the circuit member 7231 and / or the printed circuit board 7250, and the support member 7220 may be electrically soldered to the corresponding portion of the circuit member 7231.

[0351] at the same time, Figure 21 A linear support member 7220 according to one embodiment is shown, but this disclosure is not limited thereto. That is, the support member 7220 may be, for example, a plate-like member.

[0352] The second coil 7230 can move the housing 7140 along a second direction and / or a third direction through electromagnetic interaction with the first magnet 7130, thereby enabling hand tremor compensation.

[0353] Here, the second and third directions can include not only the x-axis direction (or the first direction) and the y-axis direction (or the second direction), but also directions substantially close to the x-axis and y-axis directions. That is, when viewed in terms of drive in this embodiment, the housing 7140 can move in a direction parallel to the x-axis and y-axis, but when moving while supported by the support member 7220, the housing 7140 can move in a direction slightly inclined to the x-axis and y-axis.

[0354] Therefore, it may be necessary to place the first magnet 7130 at the position corresponding to the second coil 7230.

[0355] The second coil 7230 may be positioned facing the first magnet 7130 fixed to the housing 7140. In one embodiment, the second coil 7230 may be disposed outside the first magnet 7130. Alternatively, the second coil 7230 may be spaced downwards from the first magnet 7130 at a predetermined distance.

[0356] According to this embodiment, a total of four second coils 7230 can be respectively disposed at the four corners of the circuit member 7231, but are not limited thereto. Only two second coils can be disposed along the second direction and the third direction respectively, or more than four second coils can be disposed.

[0357] Alternatively, a total of six second coils can be provided, including one on a first side along a second direction, two on a second side along a second direction, one on a third side along a third direction, and two on a fourth side along a third direction. In this case, the first and fourth sides can be adjacent to each other, and the second and third sides can be adjacent to each other.

[0358] In this embodiment, the circuit member 7231 may be formed with a circuit pattern in the form of a second coil 7230, and a separate second coil may be additionally provided above the circuit member 7231, but is not limited thereto. A circuit pattern in the form of a second coil 7230 may be formed above the circuit member 7231.

[0359] Alternatively, the second coil 7230 can be configured by winding the wire into a loop shape, or it can be formed into an FP coil shape for electrical connection to the printed circuit board 7250.

[0360] The circuit component 7231, including the second coil 7230, can be mounted or disposed on the upper surface of the printed circuit board 7250 disposed above the base 7210. However, this disclosure is not limited thereto, and the second coil 7230 can be configured to be in close contact with the base 7210, or it can be spaced apart from the base by a predetermined distance. Alternatively, the second coil can be formed on a separate board, such that the boards can be stacked and connected to the printed circuit board 7250.

[0361] The printed circuit board 7250 can be electrically connected to at least one of the upper elastic member 7150 and the lower elastic member 7160. The printed circuit board 7250 can be coupled to the upper surface of the base 7210, and as... Figure 21 As shown, the printed circuit board 7250 may have a through hole formed at a position corresponding to the end of the support member 7220, thereby inserting the support member 7220 into the through hole. Alternatively, the printed circuit board may be electrically connected to and / or coupled to the support member without a through hole.

[0362] Terminals 7251 can be disposed or formed on the printed circuit board 7250. Alternatively, terminals 7251 can be disposed on a curved terminal surface 7253. Multiple terminals 7251 can be disposed on the terminal surface 7253 and can supply current to the first coil 7120 and / or the second coil 7230 upon receiving an external voltage. The number of terminals formed on the terminal surface 7253 can be increased or decreased depending on the components to be controlled. Furthermore, the printed circuit board 7250 may include one terminal surface 7253 or three or more terminal surfaces.

[0363] The cover member 7300 may have a generally box-shaped shape, and may house, for example, the aforementioned movable unit, the second coil 7230, and a portion of the printed circuit board 7250, and may be coupled to the base 7210. The cover member 7300 may protect, for example, the movable unit, the second coil 7230, and the printed circuit board 7250 housed therein, and more specifically, may limit the outward leakage of electromagnetic fields generated, for example, by the first magnet 7130, the first coil 7120, and the second coil 7230, thereby enabling the electromagnetic field to be focused.

[0364] Figure 22 This is a perspective view showing the base 7210, filter holder 7400, and sensor holder 7500 according to one embodiment. Figure 23 This is an exploded perspective view showing the base 7210, filter holder 7400 and sensor holder 7500 according to this embodiment.

[0365] Filter 7410 can be mounted in filter holder 7400. Filter 7410 can be mounted in filter holder 7400 at a position where it faces the lens barrel and image sensor 7510 along a first direction. Filter 7410 can filter light within a specific wavelength range of incident light guided through the lens barrel, and light that has passed through filter 7410 can be incident on image sensor 7510.

[0366] Here, the filter 7410 can be, for example, an infrared filter that prevents infrared light from incident on the image sensor 7510. The image sensor 7510 can be mounted on the upper surface of the sensor holder 7500, and light that has passed through the filter 7410 can be incident on the image sensor to form an image thereon.

[0367] The sensor holder 7500 can be formed of a flexible or rigid material. However, in order to allow the connection plate 7600, which is electrically connected to the sensor holder 7500, to be easily connected to external devices and camera modules, the sensor holder can be formed of a flexible material that is easy to reposition.

[0368] The base 7210 and the filter holder 7400 can be adhered to each other, for example, using an adhesive such as epoxy resin. However, the adhered portions where the base 7210 and the filter holder 7400 are coupled to each other may be susceptible to shear forces applied from the outside.

[0369] That is, when an external force is applied to the base 7210 and the filter holder 7400 in different directions on the xy plane, a shear force can be applied to the adhesive portion, and when the shear force is applied repeatedly and continuously, the adhesive portion may be damaged.

[0370] When the adhesive portion is damaged due to shear forces, the lens barrel and image sensor 7510 can move from their designed positions in the xy plane. As a result, the focusing alignment of the lens barrel and image sensor 7510 may break, leading to a significant degradation in the quality of the image captured by the camera module.

[0371] Furthermore, when shear force is repeatedly and continuously applied to the adhesive portion, the coupling between the base 7210 and the filter holder 7400 may break. Consequently, the lens drive device 7100, including the base 7210, may separate from the filter holder 7400, which could lead to malfunction of the camera module.

[0372] Therefore, in the camera device module of this embodiment, the adhesive portion of the base 7210 and the filter holder 7400 can have a structure capable of withstanding strong shear forces.

[0373] In the camera device module of this embodiment, the adhesive portion may have the following structure to withstand strong shearing forces without breaking.

[0374] like Figure 23 As shown, the adhesion portions of the base 7210 and the filter holder 7400 can be formed with an uneven structure. That is, the base 7210 can be formed with protruding portions and recessed portions, and the filter holder 7400 can have a shape corresponding to the base 7210.

[0375] For example, the base 7210 may have a protruding portion 71000, and the filter holder 7400 may have a shape corresponding to the base 7210, i.e., a recessed portion 72000 may be formed. Here, the protruding portion 71000 may be formed on the bottom of the base 7210, and the recessed portion 72000 may be formed in the top of the filter holder 7400.

[0376] Figure 24 This is a bottom view showing the base 7210 according to one embodiment. Figure 25 This is a plan view showing a filter holder 7400 according to one embodiment. Figures 23 to 25 As shown, the protruding portion 71000 can take the form of a pair of rods, which are arranged on the corresponding sides of the base 7210 and are symmetrical about the center of the base 7210.

[0377] Here, the recessed portions (7 bosses (71100)0) can be provided in the filter holder 7400 with a shape, position, and number corresponding to the shape, position, and number of the protruding portions 71000. Therefore, in order to correspond with Figure 24 The protruding part 71000 shown corresponds to, as follows: Figure 25As shown, the recessed portion 72000 may include a pair of recessed portions disposed on corresponding sides of the filter holder 7400 and symmetrical to each other about the center of the filter holder 7400.

[0378] exist Figure 23 and Figure 24 Each of the protruding portion 71000 and the recessed portion 72000 is shown as being provided in pairs, but is not limited thereto. For example, a pair of protruding portions 71000 and a pair of recessed portions 72000 can be as follows: Figure 23 and Figure 24 The arrangement shown is vertical, or it can be arranged horizontally on the base 7210 and the filter holder 7400.

[0379] Additionally, based on the accompanying drawings, a total of two pairs can be provided, one vertically and one horizontally. Furthermore, the protruding portion 71000 and the recessed portion 72000 may not be continuous and singular, but may comprise multiple smaller portions spaced apart from each other.

[0380] However, regardless of their shape, the protruding portion 71000 and the recessed portion 72000 can have the same shape and the same number at the corresponding positions.

[0381] An adhesive material PP can be applied to the adhesion portion, which includes the protrusion 71000 and the recess 72000. By curing the adhesive material PP, the base 7210 with the protrusion 71000 and the filter holder 7400 with the recess 72000 can be coupled to each other.

[0382] Using the above structure, in the camera device module in which the base 7210 and the filter holder 7400 are coupled to each other, even if an external force is applied to the base 7210 and the filter holder 7400 in different directions in the xy plane, causing shear force to be applied to the adhesive portion, the movement of the protruding portion 71000 in the xy plane will also be restricted by the recessed portion.

[0383] Therefore, excessive movement of the base 7210 relative to the filter holder 7400 in the xy plane can be limited by the protruding portion 71000 and the recessed portion, and thus the adhesive portion can be prevented from being damaged or broken by shear force.

[0384] In this way, the quality of the image captured by the camera module can be prevented from deteriorating due to excessive movement of the base 7210 relative to the filter holder 7400, and malfunctions and shutdowns of the camera module due to damage or breakage of the adhesive portion can be prevented.

[0385] Figure 26This is a side cross-sectional view showing the state in which the base 7210 and the filter holder 7400 are coupled to each other according to one embodiment. Figure 27 It is shown Figure 26 A magnified image of part of "AA".

[0386] like Figure 26 and Figure 27 As shown, adhesive material PP can be applied to the adhesion portion of the base 7210, which includes the protrusion 71000 and the recess 72000, and the filter holder 7400, such that the base 7210 and the filter holder 7400 are coupled to each other by adhesive.

[0387] Here, in the adhesive portion, the first distance DD1, defined as the distance between the lower surface of the protruding portion 71000 and the bottom surface of the recessed portion 72000, can be in the range of, for example, 20 μm to 150 μm, more preferably, in the range of 30 μm to 120 μm, and even more preferably in the range of 50 μm to 100 μm.

[0388] Furthermore, the second distance DD2 between the adhesive portion of the base 7210 (excluding the protruding portion 71000) and the adhesive portion of the filter holder 7400 (excluding the recessed portion 72000) can be, for example, in the range of 20 μm to 150 μm, more preferably in the range of 30 μm to 120 μm, and even more preferably in the range of 50 μm to 100 μm.

[0389] The reason for providing the first distance DD1 and the second distance DD2 is to perform an active alignment process that couples the lens drive device 7100 and the filter holder 7400 to each other.

[0390] That is, after the lens drive unit 7100 is assembled separately, and then the filter holder 7400 and the sensor holder 7500 are assembled separately, the lens drive unit 7100 is coupled to the filter holder 7400. When the lens drive unit 7100 is coupled to the filter holder 7400, the focal length in a first direction between the lens disposed in the lens drive unit 7100 and the image sensor 7510 mounted on the sensor holder 7500 needs to be adjusted. This can be performed through an active alignment process.

[0391] When the active alignment process is performed, the focal length is adjusted to fit the design value, while the lens drive device 7100, including the base 7210, moves along a first direction relative to the coupling assembly of the filter holder 7400 and the sensor holder 7500.

[0392] To adjust the focal length as described above, an engineering margin may be required between the base 7210 and the filter holder 7400. A first distance DD1 and a second distance DD2 can be used as the engineering margin.

[0393] Meanwhile, since the engineering margin for focal length adjustment can be consistent along the first direction, the first distance DD1 and the second distance DD2 can be set equally.

[0394] When the focus is adjusted entirely through the active alignment process, the base 7210 and the filter holder 7400 can adhere to each other. Therefore, after the active alignment process is completed, the space defined by the first distance DD1 and the second distance DD2 is filled with an adhesive material PP, and when the adhesive material PP cures, the coupling assembly including the lens drive device 7100 (base 7210) and the filter holder 7400 and sensor holder 7500 can be coupled to each other. Here, the adhesive material PP can be, for example, epoxy resin.

[0395] Meanwhile, although not shown, instead of applying the adhesive material PP to the portions near the protrusion 71000 and the recess 72000, the adhesive material PP can be applied to other portions near the base 7210 and the filter holder 7400 (e.g., the side surfaces of the base 7210, the side surfaces of the filter holder 7400 and the sensor holder 7500, and the upper surface of the sensor holder 7500).

[0396] This is used to achieve a more robust coupling between the lens drive 7100 and the coupling components of the filter holder 7400 and the sensor holder 7500.

[0397] At the same time, such as Figure 27 As shown, the second width WW2, which is defined as the width of the recessed portion 72000, can be greater than the first width WW1, which is defined as the width of the protruding portion 71000. Here, the difference between the second width WW2 and the first width WW1 can be in the range of, for example, 80 μm to 170 μm, and more appropriately in the range of 100 μm to 150 μm.

[0398] This structure is designed to enable the lens drive unit to be positioned at a designed location in the xy plane relative to the coupling assembly of the filter holder 7400 and the sensor holder 7500 during the active alignment process.

[0399] That is, in order to position the lens drive device 7100 at a designed location in the xy-plane relative to the coupling assembly of the filter holder 7400 and the sensor holder 7500, it may be necessary to move the lens drive device 7100 in the xy-plane during the active alignment process. For this purpose, an engineering margin may be required between the protruding portion 71000 and the recessed portion 72000. The width measured as the difference between the second width WW2 and the first width WW1 can be used as the engineering margin.

[0400] Similar to the above description, the space defined by the width measured as the difference between the second width WW2 and the first width WW1 is filled with adhesive material PP, and when the adhesive material cures, the lens drive device 7100 can be coupled to the coupling assembly of the filter holder 7400 and the sensor holder 7500.

[0401] Figure 28 This is a bottom view showing the base 7210 according to another embodiment. Figure 29 This is a plan view showing the filter holder 7400 according to this embodiment.

[0402] like Figure 28 As shown, the protruding portion 71000 may include a plurality of bosses 71100. For example, the bosses 71100 may be provided on the lower surface of the base 7210, and their number and position may be appropriately selected according to the size and shape of the base 7210 and the filter holder 7400.

[0403] Although Figure 28 The boss 71100 is shown as having a circular cross-sectional shape, but in another embodiment, each of the bosses may have a semi-circular, curved, or polygonal cross-sectional shape.

[0404] The recessed portion 72000 can be provided in the filter holder 7400 in a shape, position, and number corresponding to the shape, position, and number of the boss 71100. Here, the cross-sectional area of ​​the recessed portion 72000 can be larger than the cross-sectional area of ​​the boss 71100.

[0405] As described above, this is to ensure the engineering margin required to position the lens drive device 7100 relative to the coupling assembly of the filter holder 7400 and the sensor holder 7500 at the designed position in the xy plane during the active alignment process of coupling the lens drive device 7100 to the coupling assembly of the filter holder 7400 and the sensor holder 7500.

[0406] In addition, as described above, during the active alignment process, the length of the boss 71100 along the first direction can be appropriately smaller than the depth of the recess 72000 along the first direction in order to adjust the focal length along the first direction.

[0407] Meanwhile, although not shown, in another embodiment, the protruding portion 71000 may be formed on the top of the filter holder 7400, and the recessed portion 72000 may be formed in the bottom of the base 7210.

[0408] This is in contrast to the reference Figures 22 to 29 The structures described are the same or very similar, except that the elements with protruding portions 71000 and those with recessed portions 72000 are reversed. Therefore, repeated descriptions of the specific structures will be omitted.

[0409] Figure 30 This is a bottom view showing a filter holder 7400 according to yet another embodiment. Figure 31 This is a plan view showing the sensor holder 7500 according to this embodiment.

[0410] In this embodiment, the adhesive portions of the filter holder 7400 and the sensor holder 7500 can be configured such that a protrusion or recess is formed in the filter holder 7400, and the sensor holder 7500 can have a shape corresponding to the shape of the filter holder 7400.

[0411] In this embodiment, such as Figure 30 and Figure 31 As shown, a protruding portion 71000 is formed on the lower surface of the filter holder 7400, and a recessed portion 72000 may be formed in the upper surface of the sensor holder 7500 in a position, shape and number corresponding to the position, shape and number of the protruding portion 71000.

[0412] When the corresponding protruding portion 71000 and recessed portion 72000 are formed on the adhesive portions of the filter holder 7400 and the sensor holder 7500, damage or breakage of the adhesive portions can be prevented, even when strong shear force is applied to the adhesive portions of the filter holder 7400 and the sensor holder 7500.

[0413] Therefore, it is possible to prevent image quality degradation, malfunctions, and operation stoppages of the camera module caused by, for example, breakage of the adhesive portions of the filter holder 7400 and the sensor holder 7500.

[0414] At the same time, similar to a reference Figures 22 to 29 As described above, the protruding portion 71000 may include a plurality of bosses 71100, each boss 71100 having a circular, semi-circular, curved or polygonal cross-sectional shape, and the recessed portion 72000 may be provided with a shape, position and number corresponding to the shape, position and number of the bosses 71100.

[0415] Additionally, the boss 71100 can be formed on the sensor holder 7500, and the recessed portion 72000 can be formed in the filter holder 7400 with a shape, position, and number corresponding to the shape, position, and number of the boss 71100.

[0416] Meanwhile, when the protruding portion 71000 or the recessed portion 72000 is formed in the sensor holder 7500, the sensor holder 7500 can be formed of a rigid material because the protruding portion 71000 or the recessed portion 72000 needs to resist deformation.

[0417] Here, the hard sensor holder 7500 can be formed of, for example, high-temperature co-fired ceramic (HTCC).

[0418] Here, the sensor holder 7500 may not be entirely formed of a rigid material, but at least the adhesive portion needs to be formed of a rigid material. Therefore, for example, at least the adhesive portion of the sensor holder 7500 may be formed of high-temperature co-fired ceramic.

[0419] Figure 32 This is an exploded perspective view showing a camera device module according to yet another embodiment. Figure 33 It is shown Figure 32 An exploded perspective view of the lens drive mechanism.

[0420] Reference Figure 32 The camera module 1 can be any one of, but is not limited to, mobile phones, smartphones, portable smart devices, digital camera devices, laptops, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), and navigation tablets. Any type of device used to capture pictures or moving images is acceptable.

[0421] Reference Figure 32 The camera device module 1 may include a lens drive device 10, a lens module (not shown), an infrared cutoff filter 30, a printed circuit board 40, an image sensor 50, a holding member 60, and a controller (not shown).

[0422] In the following text, reference will be made to Figure 33 Describe the lens driving device.

[0423] Reference Figure 33 According to this embodiment, the lens driving device 10 may include a cover member 100, a mover 350 including a first mover 200 and a second mover 300, a stator 400, a base 500, a support member 600, and a sensing unit 700.

[0424] However, in the lens driving device 10 according to this embodiment, one or more of the cover member 100, the first mover 200, the second mover 300, the stator 400, the base 500, the support member 600, and the sensing unit 700 may be omitted.

[0425] The cover member 100 can define the appearance of the lens drive device 10. The cover member 100 can take the form of an open hexahedron at its lower part, but is not limited thereto.

[0426] The cover member 100 may include an upper surface 101 and a side surface 102 extending downward from the outer edge of the upper surface 101.

[0427] Meanwhile, the cover member 100 can be installed on top of the base 500.

[0428] The first mover 200, the second mover 300, the stator 400, and the support member 600 can be located in the internal space defined by the cover member 100 and the base 500.

[0429] Additionally, the cover member 100 can be mounted on the base 500 such that the inner surface of the cover member 100 is in close contact with a portion or all of the side surface portion of the base 500, as will be described below. With this structure, the cover member 100 can be used to protect internal components from external impacts and prevent the introduction of external contaminants.

[0430] In one embodiment, the cover member 100 may be formed of metal. More specifically, the cover member 100 may be formed of a metal plate. In this case, the cover member 100 can prevent radio frequency interference.

[0431] That is, the cover member 100 can prevent radio waves generated outside the lens driving device 10 from being introduced into the cover member 100. In addition, the cover member 100 can prevent radio waves generated inside the cover member 100 from being discharged to the outside of the cover member 100. However, the material of the cover member 100 is not limited to this.

[0432] The cover member 100 may include an opening 110 formed in the upper surface 101 to expose the lens module. The opening 110 may have a shape corresponding to the shape of the lens module.

[0433] That is, light introduced through opening 110 can pass through the lens module. At the same time, the light that has passed through the lens module can be sent to the image sensor.

[0434] The first mover 200 constituting the mover 350 may include a coil frame 210 and a first drive unit 220.

[0435] The first mover 200 can be coupled to as Figure 32The lens module is a component of the camera device module 1 shown. However, the lens module can also be described as a component of the lens drive device 10.

[0436] That is, the lens module can be located inside the first mover 200. In other words, the outer peripheral surface of the lens module can be coupled to the inner peripheral surface of the first mover 200.

[0437] Simultaneously, the first mover 200 can move integrally with the lens module by interacting with the second mover 300, which also constitutes the mover 350. That is, the first mover 200 can move the lens module.

[0438] The first mover 200 may include a coil frame 210. Additionally, the first mover 200 may include a first drive unit 220 coupled to the coil frame 210.

[0439] The coil holder 210 can be coupled to the lens module. More specifically, the outer peripheral surface of the lens module can be coupled to the inner peripheral surface of the coil holder 210. Simultaneously, the first drive unit 220 can be coupled to the coil holder 210. Furthermore, the lower portion of the coil holder 210 can be coupled to the lower support member 620, and the upper portion of the coil holder 210 can be coupled to the upper support member 610. The coil holder 210 can be located within the housing 310. The coil holder 210 can move relative to the housing 310.

[0440] The coil holder 210 may include a lens coupling portion 211 formed therein. A lens module may be coupled to the lens coupling portion 211. Threads may be formed in the inner peripheral surface of the lens coupling portion 211 to correspond to threads formed in the outer peripheral surface of the lens module. That is, the outer peripheral surface of the lens module may be threaded to the inner peripheral surface of the lens coupling portion 211.

[0441] The coil holder 210 may include a sensor guide portion (not shown) coupled to an autofocus feedback sensor (not shown). The autofocus feedback sensor coupled to the sensor guide portion can sense movement of the coil holder 210 by sensing a second drive unit 320 mounted on the housing 310 and moving integrally with the coil holder 210. In one example, the autofocus feedback sensor may be a Hall sensor, and the second drive unit 320 may be a magnet.

[0442] The coil frame 210 may include a first drive unit coupling portion 212, around which a first drive unit 220 is wound or mounted. The first drive unit coupling portion 212 may be integrally formed on the outer surface of the coil frame 210. Alternatively, the first drive unit coupling portion 212 may be formed continuously or may be implemented as multiple portions spaced apart from each other at a predetermined distance along the outer surface of the coil frame 210. The first drive unit coupling portion 212 may include a recess formed in a portion of the outer surface of the coil frame 210. The first drive unit 220 may be located on the first drive unit coupling portion 212. The first drive unit 220 located on the first drive unit coupling portion 212 may be supported by a support portion protruding outward from the underside of the recess.

[0443] The coil holder 210 may include an upper coupling portion 213 coupled to the upper support member 610. The upper coupling portion 213 may be coupled to an inner portion 612 of the upper support member 610. In one example, the upper coupling portion 213, in the form of a protrusion, may be inserted into and coupled to a recess or hole in the inner portion 612. In contrast, the upper support member 610 may include a protrusion, and the coil holder 210 may include a recess to couple both the upper support member 610 and the coil holder 210 to each other. The coil holder 210 may also include a lower coupling portion (not shown) coupled to the lower support member 620. The lower coupling portion formed on the lower portion of the coil holder 210 may be coupled to an inner portion 622 of the lower support member 620. In one example, the lower coupling portion, in the form of a protrusion, may be inserted into and coupled to a recess or hole in the inner portion 622.

[0444] The first drive unit 220 can be positioned facing the second drive unit 320 of the second mover 300. The first drive unit 220 can move the coil frame 210 relative to the housing 310 through electromagnetic interaction with the second drive unit 320. The first drive unit 220 may include coils. The coils may be guided by the first drive unit coupling portion 212 and wound around the outer surface of the coil frame 210. In another embodiment, four coils may be independently arranged on the outer surface of the coil frame 210 such that there is a 90-degree angle between two adjacent coils. When the first drive unit 220 includes coils, voltage can be supplied to the coils through the upper support member 610. Here, the upper support member 610 may be divided into a pair of members to supply voltage to the respective coils. At the same time, the first drive unit 220 may include a pair of leads (not shown) for supplying voltage. In this case, the respective leads of the first drive unit 220 may be electrically coupled to a pair of upper support members 610a and 610b. When voltage is supplied to the coils, an electromagnetic field can be generated around the coils. In another embodiment, the first drive unit 220 may include a magnet. In this case, the second drive unit 320 may include a coil.

[0445] The second mover 300 may be located outside the first mover 200 and facing the first mover 200. The second mover 300 may be supported by a base 500 located below it. The second mover 300 may be located within the interior space of the cover member 100.

[0446] The second mover 300 may include a housing 310 located outside the coil holder 210. In addition, the second mover 300 may include a second drive unit 320, which is positioned facing the first drive unit 220 and fixed to the housing 310.

[0447] The housing 310 can be formed to have a shape corresponding to the inner surface of the cover member 100 that defines the appearance of the lens drive device 10. Additionally, the housing 310 can be formed of an insulating material, and considering productivity, the housing 310 can be an injection-molded article. The housing 310 can be movable for optical image stabilization (OIS) and can be spaced at a constant distance from the cover member 100. However, in the AF model, the housing 310 can be fixed to the base 500. Alternatively, in the AF model, the housing 310 can be omitted, and the magnet serving as the second drive unit 320 can be fixed to the cover member 100.

[0448] The housing 310 may be open on its upper and lower sides, allowing the first mover 200 to be housed therein, enabling the first mover 200 to move vertically. The housing 310 may include an internal space 311, which is open on its upper and lower sides. The first mover 200 may be movably located within the internal space 311. That is, the internal space 311 may have a shape corresponding to the shape of the first mover 200. Furthermore, the inner peripheral surface of the internal space 311 may be spaced apart from the outer peripheral surface of the first mover 200.

[0449] The housing 310 may include a second drive unit coupling portion 312 formed on its side surface. The second drive unit coupling portion is formed to have a shape corresponding to the shape of the second drive unit 320 and accommodates the second drive unit 320 therein. That is, the second drive unit coupling portion 312 can accommodate and fix the second drive unit 320. The second drive unit 320 can be fixed to the second drive unit coupling portion 312 using an adhesive (not shown). Simultaneously, the second drive unit coupling portion 312 can be located on the inner peripheral surface of the housing 310. This is advantageous for electromagnetic interaction between the second drive unit 320 and the first drive unit 220 located therein. In one example, the second drive unit coupling portion 312 may be open on its underside. This is advantageous for electromagnetic interaction between the second drive unit 320 and the third drive unit 420 located below it. In one example, four second drive unit coupling portions 312 may be provided. Each of the four second drive unit coupling portions 312 can be coupled to the second drive unit 320. Meanwhile, the four second drive unit coupling portions 312 can be disposed at each corner of the housing 310.

[0450] An upper support member 610 may be coupled to an upper portion of a housing 310, and a lower support member 620 may be coupled to a lower portion of a housing 310. The housing 310 may include an upper coupling portion 313 coupled to the upper support member 610. The upper coupling portion 313 may be coupled to an outer portion 611 of the upper support member 610. In one example, the upper coupling portion 313, in the form of a protrusion, may be inserted into and coupled to a recess or hole in the outer portion 611. In another embodiment, the upper support member 610 may include a protrusion, and the housing 310 may include a recess such that the upper support member 610 and the housing 310 are coupled to each other. The housing 310 may also include a lower coupling portion (not shown) coupled to the lower support member 620. The lower coupling portion formed on the lower portion of the housing 310 may be coupled to an outer portion 621 of the lower support member 620. In one example, the lower coupling portion, in the form of a protrusion, may be inserted into and coupled to a recess or hole in the outer portion 621.

[0451] The second drive unit 320 can be positioned facing the first drive unit 220 of the first mover 200. The second drive unit 320 can move the first drive unit 220 through electromagnetic interaction with it. The second drive unit 320 may include a magnet. The magnet can be fixed to the second drive unit coupling portion 312 of the housing 310. In one example, such as Figure 33 As shown, the second drive unit 320 may include four magnets, which are independently configured such that there is a 90-degree angle between two adjacent coils.

[0452] That is, the second drive unit 320 can be mounted equidistantly on the four side surfaces of the housing 310 to achieve efficient use of the internal volume. Additionally, the second drive unit 320 can be disposed at the four corners of the housing 310. Furthermore, the second drive unit 320 can be adhered to the housing 310 using, for example, an adhesive, but is not limited thereto. In another embodiment, the first drive unit 220 may include a magnet, and the second drive unit 320 may include a coil.

[0453] The stator 400 can be fixed to the base 500. The stator 400 can be positioned to face the lower side of the second mover 300. At the same time, the stator 400 can move the second mover 300. In addition, the stator 400 can have through holes 411 and 421 formed at its center to correspond to the lens module.

[0454] The stator 400 may include a circuit board 410 located between the third drive unit 420 and the base 500. Additionally, the stator 400 may include a third drive unit 420 located below the second drive unit 320 such that the third drive unit 420 faces the second drive unit 320.

[0455] The circuit board 410 may include a flexible printed circuit board. The circuit board 410 may be located between the third drive unit 420 and the base 500. Simultaneously, the circuit board 410 may provide voltage to the third drive unit 420.

[0456] In addition, the circuit board 410 can provide voltage to the first drive unit 220 through the lateral support member 630 and the upper support member 610.

[0457] The circuit board 410 may have a through hole 411 through which light passing through the lens module passes.

[0458] Additionally, a portion of the circuit board 410 may be bent from the side surface of the base 500 to protrude from the lower surface of the base 500. Terminal units 412 may be formed on the bent portion of the circuit board 410 protruding from the lower surface of the base 500.

[0459] Terminal unit 412 can be electrically connected to Figure 32 The printed circuit board 40 shown and described below can be used to apply voltage or control signals to the circuit board 410 via the terminal unit 412.

[0460] The third drive unit 420 may include a coil. When voltage is applied to the coil of the third drive unit 420, the second drive unit 320 and the housing 310 fixed to the second drive unit 320 can move integrally through the interaction between the third drive unit and the second drive unit 320. The third drive unit 420 may be mounted on or electrically connected to the circuit board 410.

[0461] Meanwhile, the third drive unit 420 may have a through hole 421 through which light from the lens module passes. In addition, in view of reducing the size of the lens drive device 10 (reducing the height along the z-axis direction, i.e., the optical axis direction), the third drive unit 420 may be formed as a patterned coil FP coil and may be set or mounted on the circuit board 410.

[0462] The base 500 can support the second mover 300. Figure 32 The printed circuit board 40 shown can be located below the base 500.

[0463] The base 500 may have a through hole 510 formed at a position corresponding to the lens coupling portion 211. The base 500 may perform a sensor holding function to protect the sensor. Figure 32 Image sensor 50 is shown in the figure.

[0464] In one embodiment, the base 500 may include a foreign matter collection unit (not shown) that collects foreign matter introduced into the cover member 100. The foreign matter collection unit may be located on the upper surface of the base 500 and may include an adhesive material to collect foreign matter in the internal space defined by the cover member 100 and the base 500. The base 500 may include a sensor mounting portion 530 coupled to the sensor unit 700.

[0465] That is, the sensor unit 700 can be mounted on the sensor mounting portion 530. Here, the sensor unit 700 can sense the horizontal movement of the housing 310 by sensing the second drive unit 320 coupled to the housing 310. In one example, two sensor mounting portions 530 can be provided. The sensor unit 700 can be located on each of the two sensor mounting portions 530. In this case, the sensor unit 700 can be configured to sense the movement of the housing 310 along the x-axis and y-axis directions.

[0466] The support member 600 can interconnect two or more of the first mover 200, the second mover 300, and the base 500. The support member 600 can elastically interconnect two or more of the first mover 200, the second mover 300, and the base 500 to allow relative movement between the respective components. That is, the support member 600 can be an elastic member. In one embodiment, such as... Figure 33 As shown, the support member 600 may include an upper support member 610, a lower support member 620, and a lateral support member 630. Simultaneously, conductive members (not shown) may be provided separately from the support member 600 to electrically connect two or more of the upper support member 610, lower support member 620, and lateral support member 630 to each other.

[0467] In one example, the upper support member 610 may include an outer portion 611, an inner portion 612, and a connecting portion 613. The upper support member 610 may include: an outer portion 611 coupled to the housing 310; an inner portion 612 coupled to the coil holder 210; and a connecting portion 613 configured to resiliently connect the outer portion 611 and the inner portion 612 to each other.

[0468] The upper support member 610 can be connected to the upper part of the first mover 200 and the upper part of the second mover 300. More specifically, the upper support member 610 can be coupled to the upper part of the coil holder 210 and the upper part of the housing 310. The inner portion 612 of the upper support member 610 can be coupled to the upper coupling portion 213 of the coil holder 210, and the outer portion 611 of the upper support member 610 can be coupled to the upper coupling portion 313 of the housing 310.

[0469] In one embodiment, the upper support member 610 can be divided into a pair of members. That is, the upper support member 610 may include a first upper support member 610a and a second upper support member 610b. Here, each of the first upper support member 610a and the second upper support member 610b may be a coil, and each of the first upper support member 610a and the second upper support member 610b may be connected to a corresponding lead in the leads of the first drive unit 220 to provide voltage. In other words, the pair of upper support members 610a and 610b may be used to apply voltage to the first drive unit 220. In one example, the upper support member 610 may receive voltage from the circuit board 410 via the lateral support member 630. That is, the first drive unit 220 may receive voltage from the circuit board 410 via the lateral support member 630 and the upper support member 610.

[0470] In one example, the lower support member 620 may include an outer portion 621, an inner portion 622, and a connecting portion 623. The lower support member 620 may include: an outer portion 621 coupled to the housing 310; an inner portion 622 coupled to the coil holder 210; and a connecting portion 623 configured to resiliently connect the outer portion 621 and the inner portion 622 to each other.

[0471] The lower support member 620 can be connected to the lower portion of the first mover 200 and the lower portion of the second mover 300. More specifically, the lower support member 620 can be coupled to the lower portion of the coil holder 210 and the lower portion of the housing 310. The inner portion 622 of the lower support member 620 can be coupled to the lower coupling portion of the coil holder 210, and the outer portion 621 of the lower support member 620 can be coupled to the lower coupling portion of the housing 310.

[0472] The lateral support member 630 may have one end fixed to the stator 400 or the base 500 and the other end coupled to the upper support member 610 or the second mover 300. In one example, the lateral support member 630 may be coupled to the base 500 on one side and to the housing 310 on the other side. In another embodiment, the lateral support member 630 may be coupled to the stator 400 on one side and to the upper support member 610 on the other side. The lateral support member 630 may elastically support the second mover 300 relative to the base 500, allowing the second mover 300 to move horizontally or tilt.

[0473] In one example, the lateral support member 630 may include leaf springs. In another example, the lateral support member 630 may include leaf springs located on four outer surfaces of the housing 310. In one embodiment, the lateral support member 630 may include multiple wires. Here, the number of wires may be six or eight.

[0474] In one example, the lateral support member 630 may include components coupled to the upper support member 610 to absorb shocks. A shock-absorbing element may be disposed on one of the lateral support member 630 and the upper support member 610. The shock-absorbing element may be a separate component such as a shock absorber (not shown). Alternatively, the shock-absorbing element can be implemented by changing the shape of a portion of one of the lateral support member 630 and the upper support member 610.

[0475] The sensor unit 700 can be used for either autofocus (AF) feedback or optical image stabilization (OIS) feedback. That is, the sensor unit 700 can sense the position or movement of one or more of the first mover 200 and the second mover 300. In one example, the sensor unit 700 can sense the horizontal movement or tilt of the second mover 300 to provide information for OIS feedback.

[0476] Sensor unit 700 can be disposed on stator 400. Sensor unit 700 can be located on the upper or lower surface of circuit board 410 of stator 400. In one embodiment, sensor unit 700 can be disposed on the lower surface of circuit board and can be located on sensor mounting portion 530 of base 500. In one embodiment, sensor unit 700 may include Hall sensor. Here, sensor unit 700 can sense the movement of second mover 300 relative to stator 400 by sensing the magnetic field of second drive unit 320. In one example, more than two sensor units 700 can be provided to sense the movement of second mover 300 along both the x-axis and y-axis directions.

[0477] Figure 34 Besides the camera module Figure 32 A longitudinal cross-sectional view of the remaining parts excluding the lens drive mechanism.

[0478] Reference Figure 33 and Figure 34 Including the references above Figure 33 The described flexible printed circuit board 410 includes a first circuit board portion 413 and a second circuit board portion 414.

[0479] The first circuit board portion 413 is defined as the portion that faces the upper surface of the base 500, and the second circuit board portion 414 is defined as the portion that curves downward toward the side surface of the base 500 to protrude or extend toward the lower surface of the base 500.

[0480] When measured from the lower surface of the base 500, the second circuit board portion 414 protrudes or extends to a first distance D1. Terminal units 412 may be formed on the second circuit board portion 414.

[0481] In this embodiment, for example, when the first circuit board 410 includes a flexible printed circuit board, the position and bending angle of the second circuit board portion 414 relative to the base 500 may be inconsistent.

[0482] That is, for example, for each camera module, the position and bending angle of the second circuit board portion 414 bent along the side surface of the base 500 may be different.

[0483] When the position and bending angle of the second circuit board portion 414 bent along the side surface of the base 500 are different for each camera module, it is difficult to accurately connect the terminals formed on the second circuit board portion 414 and the terminals formed on the printed circuit board 40 (described below) to each other, and therefore it is difficult to assemble the terminals formed on the circuit board 410 and the terminals formed on the printed circuit board 40 to each other through an automated process.

[0484] In this embodiment, in order to ensure that the position and bending angle of the second circuit board portion 414 bent along the side surface of the base 500 are consistent for each camera device module 1, the base 500 is formed with a support portion 540 for supporting the second circuit board portion 414.

[0485] The support portion 540 may protrude from the lower surface of the base 500. For example, the support portion 540 may have a plate shape.

[0486] The support portion 540, which has a plate shape and protrudes from the lower surface of the base 500, can be formed to have a shape corresponding to the second circuit board portion 414.

[0487] Additionally, the support portion 540 may be formed in a direction parallel to the second circuit board portion 414 so as to be able to contact the surface of the second circuit board portion 414.

[0488] In this embodiment, the protruding length of the support portion 540, measured from the lower surface of the base 500, is less than the length of the second circuit board portion 414. This is to prevent erroneous electrical connections between the second circuit board portion 414 and the printed circuit board 40 when the base 500 contacts the printed circuit board 40 earlier than the second circuit board portion 414, causing the second circuit board portion 414 to be spaced apart from the printed circuit board 40.

[0489] In this embodiment, in order to prevent the support portion 540 and the second circuit board portion 414 from separating from each other, an adhesive, for example, can be used to adhere the support portion 540 and the second circuit board portion 414 to each other.

[0490] Although the embodiments show and describe a case where one of the support portions 540 protrudes from the lower surface of the base 500, multiple support portions 540 may be formed on the lower surface of the base 500.

[0491] That is, the support portion 540 can protrude from the lower surface of the base 500, and the second circuit board portion 414 can be supported by the support portion 540.

[0492] Refer again Figure 32 The support portion 540 and the second circuit board portion 414 formed on the base 500 are coupled to the printed circuit board 40.

[0493] An image sensor 50 can be mounted on a printed circuit board 40.

[0494] The printed circuit board 40 may have terminal units 42 for applying voltage or control signals to the lens drive device 10. The terminal units 42 are electrically connected to the terminal units 412 formed on the second circuit board portion 414.

[0495] A controller (not shown) can be formed on the printed circuit board 40 to control the lens drive device 10.

[0496] Image sensor 50 can be mounted on printed circuit board 40. Image sensor 50 can be positioned such that its optical axis is aligned with the lens module. Thus, image sensor 50 can capture light that has passed through the lens module. Image sensor 50 can use the light introduced therein to output an image.

[0497] In one embodiment, the image sensor 50 may be a charge-coupled device (CCD), a metal-oxide-semiconductor (MOS), a CPD, or a CID. However, the type of image sensor 50 is not limited to these.

[0498] The retaining member 60 secures the edge of the infrared cutoff filter 30, so that the infrared cutoff filter 30 can be firmly fixed to the printed circuit board 40.

[0499] In this embodiment, the retaining member 60 is used to protect the image sensor 50 from externally applied impacts or vibrations by surrounding it.

[0500] In addition to securing the edge of the infrared cut-off filter 30 to firmly fix the infrared cut-off filter 30 to the printed circuit board 40, the retaining member 60 also supports the lens drive device 10.

[0501] Additionally, wall 62 may protrude from the upper surface of retainer member 60, and infrared cut-off filter 30 may be disposed on wall 62.

[0502] Reference Figure 32 and 34 The wall 62 of the retaining member 60 is positioned very close to the base 500, and therefore the wall 62 of the retaining member 60 and the base 500 may come into contact with each other during reliability testing, which may lead to performance degradation of the camera module 1.

[0503] To prevent this, a withdrawal portion 535 can be formed on the rear surface of the base 500. For example, the withdrawal portion 535 can be in the form of a groove to prevent the wall 62 from contacting the rear surface of the base 500.

[0504] Meanwhile, in this embodiment, the outer surface of the retaining member 60 may face the support portion 540 that protrudes or extends from the base 500.

[0505] Figure 35 This is a cross-sectional view showing the engagement structure of the base corresponding to the retaining member according to one embodiment.

[0506] Reference Figure 35 The lens drive device 10 is joined to the retaining member 60. The lens drive device 10 and the retaining member 60 are joined together, for example, by a heat- and light-curing mixed epoxy resin hardener 560. In contrast, the lens drive device 10 and the retaining member 60 can be joined together, for example, by a thermosetting adhesive or a light-curing adhesive.

[0507] In this embodiment, since the area where the mixed epoxy resin hardener is applied between the retainer member 60 and the base 500 is very narrow, the lens drive device 10 and the retainer member 60 may easily separate from each other when a lateral force is applied between the lens drive device 10 and the retainer member 60.

[0508] To prevent this, an adhesive receiving recess 550 may be formed on the lower surface of the base 500. The adhesive receiving recess 550 is formed recessed in the direction facing the upper surface of the base 500, and the adhesive 560 is accommodated in the adhesive receiving recess 550.

[0509] In this embodiment, for example, the adhesive receiving recesses 550 may be arranged in a matrix in the lower surface of the base 500.

[0510] Based on the detailed description above, the implementation can prevent errors in the assembly of the flexible printed circuit board and the image sensor board and reduce assembly time by supporting a flexible printed circuit board that protrudes from the lens drive device and is connected to the image sensor board when the image sensor board and the lens drive device are coupled to each other.

[0511] Furthermore, the implementation prevents significant degradation of the camera module's performance caused, for example, during reliability testing, when the image sensor board and lens drive unit, which are coupled together, come into contact with each other at their facing portions.

[0512] Furthermore, due to the small size of the adhesive bonding area between the image sensor plate and the lens drive unit, the image sensor plate and the lens drive unit can be prevented from easily separating from each other due to external impacts.

[0513] Although only a few implementation methods have been described above, various other forms can be implemented. The technical content of the above implementation methods can be combined in various ways, as long as they are not incompatible technologies, and therefore can be implemented in new forms.

[0514] [Industrial Applicability]

[0515] The lens driving device and the camera module including the lens driving device of this embodiment may include a fixing portion between the lens barrel and the coil holder, thereby preventing the lens barrel from separating from or tilting from the coil holder during impact testing. Therefore, the lens driving device and the camera module including the lens driving device are industrially applicable.

[0516] This technology can also be configured as follows:

[0517] Item 1. A camera device module, comprising:

[0518] A lens barrel, comprising at least one lens;

[0519] A coil holder, configured to house the lens barrel within the coil holder; and

[0520] A fixing part is disposed between the lens barrel and the coil frame to prevent the lens barrel from separating from the coil frame.

[0521] The coil frame includes a coil frame rib that is configured to protrude toward the lens barrel, wherein one surface of the coil frame that contacts the surface of the fixed portion includes a coil frame rib.

[0522] Item 2. The camera device module according to Item 1, wherein the coil frame ribs include a plurality of coil frame ribs spaced at a constant distance from each other on the inner surface of the coil frame.

[0523] Item 3. The camera device module according to Item 1, wherein the coil frame rib is configured to protrude from the inner surface of the coil frame.

[0524] Item 4. The camera device module according to Item 1, wherein the fixed portion contacts the inner surface of the coil frame at one end face and contacts the outer surface of the lens barrel at the other end face.

[0525] Item 5. The camera device module according to Item 1, wherein the lens barrel includes a lens barrel rib configured to project radially outward.

[0526] Item 6. The camera device module according to Item 5, wherein the lens barrel rib has a sinusoidal cross-sectional shape.

[0527] Item 7. The camera device module according to Item 1, wherein the lens barrel includes a radially outwardly recessed lens barrel portion.

[0528] Item 8. The camera device module according to Item 7, wherein the recessed portion of the lens barrel has a sinusoidal cross-sectional shape.

[0529] Item 9. The camera device module according to Item 1 further includes:

[0530] The first coil is disposed on the outer peripheral surface of the coil frame;

[0531] A first magnet is positioned to face the first coil;

[0532] The housing is configured to support the first magnet;

[0533] The upper elastic member and the lower elastic member are coupled to the coil frame and the housing;

[0534] The base is located below the coil frame;

[0535] Multiple support members are configured to support the housing so that the housing can move relative to the base along a second direction and a third direction orthogonal to the first direction; and

[0536] The printed circuit board is mounted on the base.

[0537] Item 10. The camera device module according to Item 1, wherein the fixing portion comprises ultraviolet (UV) cured epoxy resin.

[0538] Item 11. The camera device module according to Item 1, wherein the fixing portion comprises thermosetting epoxy resin.

[0539] Item 12. A camera device module, comprising:

[0540] A lens barrel, comprising at least one lens;

[0541] A coil holder, configured to house the lens barrel within the coil holder; and

[0542] A fixing part is disposed between the lens barrel and the coil frame to prevent the lens barrel from separating from the coil frame.

[0543] Wherein, one surface of the coil frame that contacts the surface of the fixed portion includes a coil frame rib configured to protrude toward the lens barrel, and

[0544] The lens barrel has one surface that contacts the surface of the fixed part, which includes a lens barrel rib that is configured to protrude or a lens barrel recess that is configured to be recessed.

[0545] Item 13. The camera device module according to Item 12, wherein the lens barrel rib or the lens barrel recess has a sinusoidal cross-sectional shape.

[0546] Item 14. The camera device module according to Item 12, wherein the fixing part comprises UV-curable epoxy resin or thermosetting epoxy resin.

[0547] Item 15. The camera device module according to Item 12, wherein the coil frame rib includes an inner peripheral surface defining a hollow cross-sectional shape.

[0548] Item 16. A camera device module, comprising:

[0549] A lens barrel, comprising at least one lens;

[0550] A coil holder is configured to house the lens barrel within the coil holder;

[0551] A fixing part is provided between the lens barrel and the coil frame to prevent the lens barrel from separating from the coil frame;

[0552] The first coil is disposed on the outer peripheral surface of the coil frame;

[0553] A first magnet is positioned to face the first coil;

[0554] The housing is configured to support the first magnet;

[0555] The upper elastic member and the lower elastic member are coupled to the coil frame and the housing;

[0556] The base is located below the coil frame;

[0557] Multiple support members are configured to support the housing so that the housing can move relative to the base along a second direction and a third direction orthogonal to the first direction; and

[0558] The printed circuit board is mounted on the base.

[0559] The coil frame includes a coil frame rib that is configured to protrude toward the lens barrel, wherein one surface of the coil frame that contacts the surface of the fixed portion includes a coil frame rib.

[0560] Item 17. The camera device module according to Item 16, wherein one surface of the lens barrel in contact with the surface of the fixed portion includes a lens barrel rib configured to protrude or a lens barrel recess configured to be recessed.

[0561] Item 18. The camera device module according to Item 16, wherein the lens barrel rib or the lens barrel recess has a sinusoidal cross-sectional shape.

[0562] Item 19. The camera device module according to Item 16, wherein the fixing portion comprises UV-curable epoxy resin or thermosetting epoxy resin.

[0563] Item 20. The camera device module according to Item 16, wherein the fixed portion contacts the inner surface of the coil frame at one end face and contacts the outer surface of the lens barrel at the other end face.

[0564] In addition, this technology can also be configured as follows.

[0565] (1) A camera device module, comprising:

[0566] First circuit board;

[0567] An image sensor, wherein the image sensor is mounted on the first circuit board;

[0568] A retainer component is disposed on the first circuit board and surrounds the image sensor;

[0569] An infrared cutoff filter is disposed on the retaining member;

[0570] Base, the base being disposed on the retaining member; and

[0571] The coil frame is disposed on the base.

[0572] The retaining member includes a wall protruding from its upper surface, and

[0573] The base includes an exit portion formed on the rear surface of the base to prevent the wall from contacting the rear surface of the base.

[0574] (2) According to the camera device module described in (1), wherein the exit portion is a recess.

[0575] (3) The camera device module according to (1), wherein a portion of the wall of the retaining member overlaps with the exit portion in the vertical direction.

[0576] (4) The camera device module according to (1) includes a lens module coupled to the coil frame.

[0577] (5) The camera device module according to (1), wherein the coil frame is configured to move in a vertical direction.

[0578] (6) The camera device module according to (1) includes:

[0579] A housing, which is disposed outside the coil frame;

[0580] A first coil and a magnet, the first coil and the magnet being configured to move the coil frame by electromagnetic interaction with each other; and

[0581] An upper support member is coupled to the upper part of the coil frame and the upper part of the housing.

[0582] (7) The camera device module according to (6) includes:

[0583] A second coil is configured to move the housing by interaction with the magnet; and

[0584] A second circuit board is disposed on the base and electrically connected to the second coil.

[0585] (8) The camera device module according to (7) includes a lateral support member, the lateral support member including a portion coupled to the upper support member for supporting the housing.

[0586] (9) The camera device module according to (7), wherein the second circuit board comprises:

[0587] A first circuit board portion configured to face the upper surface of the base; and

[0588] The second circuit board portion that bends downward toward the side surface of the base.

[0589] (10) The camera device module according to (9), wherein the base includes a support portion that protrudes from the lower surface of the base and supports the second circuit board portion.

[0590] (11) The camera device module according to (10), wherein the supporting portion has a plate shape.

[0591] (12) The camera device module according to (10), wherein the support portion is formed in a direction parallel to the second circuit board portion.

[0592] (13) The camera device module according to (10), wherein the protruding length of the support portion measured from the lower surface of the base is less than the protruding length of the second circuit board portion measured from the lower surface of the base.

[0593] (14) The camera device module according to (10), wherein the support portion and the second circuit board portion are adhered to each other by an adhesive.

[0594] (15) The camera device module according to (10), wherein the second circuit board includes a first terminal unit formed on a portion of the second circuit board.

[0595] (16) The camera device module according to (15), wherein the first circuit board includes a second terminal unit electrically connected to the first terminal unit.

[0596] (17) A camera device module, comprising:

[0597] First circuit board;

[0598] An image sensor, wherein the image sensor is mounted on the first circuit board;

[0599] A retainer component is disposed on the first circuit board and surrounds the image sensor;

[0600] An infrared cutoff filter is disposed on the retaining member;

[0601] The base is disposed on the retaining member;

[0602] A second circuit board, the second circuit board comprising: a first circuit board portion disposed facing an upper surface of the base; and a second circuit board portion curved downward toward a side surface of the base; and

[0603] A coil holder, which is mounted on the base.

[0604] The base includes a support portion that protrudes from the lower surface of the base and supports the second circuit board portion.

[0605] (18) The camera device module according to (17), wherein the second circuit board portion protrudes toward the lower surface of the base.

[0606] (19) The camera device module according to (17), wherein the supporting portion has a plate shape.

[0607] (20) The camera device module according to (17), wherein the support portion is formed in a direction parallel to the second circuit board portion.

[0608] (21) The camera device module according to (18), wherein the protruding length of the support portion measured from the lower surface of the base is less than the protruding length of the second circuit board portion measured from the lower surface of the base.

[0609] (22) The camera device module according to (17), wherein the support portion and the second circuit board portion are adhered to each other by an adhesive.

[0610] (23) The camera device module according to (17), wherein the second circuit board includes: a first terminal unit formed on a portion of the second circuit board.

[0611] (24) The camera device module according to (23), wherein the first circuit board includes: a second terminal unit electrically connected to the first terminal unit.

[0612] (25) A camera device module, comprising:

[0613] First circuit board;

[0614] An image sensor, wherein the image sensor is mounted on the first circuit board;

[0615] A retainer component is disposed on the first circuit board and surrounds the image sensor;

[0616] An infrared cutoff filter is disposed on the retaining member;

[0617] The base is disposed on the retaining member;

[0618] Coil holder, said coil holder being disposed on the base; and

[0619] An adhesive is disposed between the retaining member and the base.

[0620] The base includes an adhesive receiving recess formed in the lower surface of the base, and

[0621] The adhesive is disposed in the adhesive receiving recess.

[0622] (26) A mobile device including a camera module according to any one of (1) to (25).

Claims

1. A camera device module, comprising: First circuit board; A retainer member disposed on the first circuit board and including a wall protruding from the upper surface of the retainer member; An image sensor, wherein the image sensor is mounted on the first circuit board; A filter, the filter being disposed on the retaining member and positioned inside the wall of the retaining member; Base portion, the base portion being disposed on the retaining member; as well as The coil holder is disposed above the base. Wherein, the base includes a retraction portion formed on the rear surface of the base, and the wall of the retaining member is disposed between the edge of the filter and the retraction portion of the base; and The base includes an adhesive receiving recess formed recessed on the rear surface of the base, the adhesive receiving recess being configured to receive adhesive.

2. The camera device module according to claim 1, wherein, The exit portion is a recessed portion that is sunken from the rear surface of the base.

3. The camera device module according to claim 1, wherein, The base includes a through hole, and the exit portion is formed in the portion of the rear surface of the base adjacent to the through hole.

4. The camera device module according to claim 1, wherein, The wall of the retaining member is positioned lower than the exit portion of the base.

5. The camera device module according to claim 1, comprising a lens module coupled to the coil frame.

6. The camera device module according to claim 1, wherein, A portion of the wall of the retaining member overlaps with the exit portion of the base in the optical axis direction.

7. The camera device module according to claim 1, wherein, The coil frame is configured to move along the optical axis.

8. The camera device module according to claim 1, comprising: Housing, the housing housing the coil frame; A first coil and a magnet, the first coil and the magnet being configured to move the coil frame by electromagnetic interaction with each other; as well as An upper support member is coupled to the upper part of the coil frame and the upper part of the housing.

9. The camera device module according to claim 8, wherein, The magnet is disposed on the housing, and the first coil is disposed on the coil frame.

10. The camera device module according to claim 8, comprising: The second coil is configured to move the housing by interacting with the magnet; as well as A second circuit board is disposed on the base and electrically connected to the second coil.

11. The camera device module of claim 10, comprising a lateral support member coupled to the upper support member to support the housing and electrically connected to the second circuit board.

12. The camera device module according to claim 10, wherein, The second circuit board includes: A first circuit board portion configured to face the upper surface of the base; and The second circuit board portion bends downward toward the side surface of the base from the first circuit board portion.

13. The camera device module according to claim 5, wherein, Compared to the exit portion of the base, the optical axis is positioned closer to the wall of the retaining member.

14. The camera device module of claim 10, comprising a sensor unit disposed on the base and configured to detect movement of the housing.

15. The camera device module according to claim 14, wherein, The sensor unit includes a first sensor and a second sensor, and the first sensor and the second sensor are electrically connected to the second circuit board.

16. The camera device module according to claim 1, wherein, The exit portion of the base is configured to prevent the wall of the retaining member from contacting the rear surface of the base.

17. A camera device module, comprising: First circuit board; A retainer member disposed on the first circuit board and including a wall protruding from the upper surface of the retainer member; An image sensor, wherein the image sensor is mounted on the first circuit board; A filter, the filter being disposed on the retaining member and positioned inside the wall of the retaining member; A base is disposed on the retaining member and includes a through hole; A coil holder, which is disposed above the base; as well as Lens module, the lens module being coupled to the coil frame, The base includes a withdrawal portion formed in the portion of the rear surface of the base adjacent to the through hole. Wherein, a portion of the wall of the retaining member overlaps with the exit portion of the base in the optical axis direction, and the optical axis of the lens module is positioned closer to the wall of the retaining member than the exit portion of the base; and The base includes an adhesive receiving recess formed recessed on the rear surface of the base, the adhesive receiving recess being configured to receive adhesive.

18. The camera device module according to claim 17, wherein, The exit portion is a recessed portion that is sunken from the rear surface of the base.

19. The camera device module according to claim 17, comprising: Housing, the housing housing the coil frame; A first coil, the first coil being disposed on the coil frame; as well as A magnet, which is disposed on the housing, The coil frame is configured to move along the optical axis direction through the interaction between the first coil and the magnet.

20. The camera device module according to claim 19, comprising: A second circuit board is disposed on the base; as well as A second coil, electrically connected to the second circuit board, is configured to move the housing in a direction perpendicular to the optical axis by interacting with the magnet.

21. The camera device module according to claim 17, wherein, The wall of the retaining member does not overlap with the lens module in the optical axis direction.

22. A mobile device comprising a camera module according to any one of claims 1 to 21.

Images