Patent Description:
It is difficult to apply technology of a voice coil motor (VCM) used in existing general camera modules to a subminiature, low-power camera module, and therefore research related thereto has been actively conducted.

Demand for and production of electronic products, such as smartphones and mobile phones equipped with cameras, have increased. Cameras for mobile phones are trending toward increased resolution and miniaturization. As a result, an actuator has also been miniaturized, increased in diameter, and been made multifunctional. In order to realize a high-resolution camera for mobile phones, improvement in the performance of the camera for mobile phones and additional functions thereof, such as autofocusing, handshake correction, and zooming, are required. <CIT> discloses a camera module including an imaging function section, a connector forming section, and a connecting section combined in a laminated body, wherein the connecting section is thinner than the imaging function section and is bendable. <CIT> discloses a camera module having a ground dummy board, the camera module including: a lens holder having at least one lens; an image sensor having an image region where light passed through the lens is imaged; a board having the image sensor mounted at one side assembled to a lower surface of the lens holder; and a ground dummy board disposed on an outer surface of the board to electrically connect to ground via holes exposed to the outer surface of the board.

Embodiments provide a camera module and an optical device including the same, which are capable of improving performance of blocking EMI noise and of reducing the electrical resistance between the reinforcing member and the ground of the board.

A camera module according to an embodiment includes a circuit board comprising a first circuit board, a second circuit board comprising a connector, and a connecting board connecting the first circuit board and the second circuit board; a lens moving unit disposed on the first circuit board; and a noise-blocking unit comprising a first noise-blocking portion disposed beneath the second circuit board and configured to block an electro-magnetic interference, characterized in that the second circuit board comprises a ground layer and a recess exposing the ground layer, and the noise-blocking unit is disposed in the recess and is in contact with the ground layer, and wherein a length of one side of the noise-blocking unit is less than a length one side of the recess of the second circuit board when viewed in a plan view.

The noise-blocking unit includes a first portion disposed in the cavity in the board and a second portion disposed on the connecting board, an end of the first portion being disposed in the cavity in the board.

A length of a short side of the noise-blocking unit may be less than a length of a long side of the cavity in the board.

A region of the ground layer may define a bottom surface of the cavity in the board.

A length of one long side of the cavity in the board may be greater than a length of another long side of the cavity in the board.

The camera module may further include an adhesive disposed between the reinforcing member and the noise-blocking unit.

The cavity in the board may include a first inner surface, and the noise-blocking unit may include a first surface that faces the first inner surface of the cavity in the board, the first surface of the noise-blocking unit being spaced apart from the first inner surface of the cavity in the board.

The cavity in the board may include a second inner surface that faces the first inner surface and a third inner surface connecting the first inner surface to the second inner surface, and the noise-blocking unit may include a second surface that faces the second inner surface of the cavity in the board and a third surface that faces the third inner surface of the cavity in the board, the second surface of the noise-blocking unit being spaced apart from the second inner surface of the cavity in the board, and the third surface of the noise-blocking unit being spaced apart from the third inner surface of the cavity in the board.

A portion of the adhesive may be disposed in the cavity in the board.

A vertical length of the noise-blocking unit and a vertical length of the adhesive may be less than a vertical length of the cavity, the vertical direction being a direction that is perpendicular to an optical axis of the lens moving unit and extends from a first outer surface to a second outer surface of a second region of the board, and the first and second outer surfaces of the second region facing each other.

The adhesive may include a conductive particle, which is in contact with the ground layer through the noise-blocking unit.

A resistance value between the reinforcing member and the ground layer may be lower than <NUM> ohm.

A camera module according to another example includes a lens moving unit including a lens, a connecting board connected to the lens moving unit, and a connector unit connected to the connecting board, wherein the connector unit includes a board including a cavity and a ground layer formed in an upper surface thereof, a noise-blocking unit disposed in the cavity in the board so as to be in contact with the ground layer, and a reinforcing member, which is disposed on the noise-blocking unit and is disposed over the cavity in the board and on an upper surface of the board, wherein the noise-blocking unit includes a first portion disposed in the cavity in the board and a second portion disposed on the connecting board, and the end of the first portion is disposed in the cavity in the board.

Embodiments are able to improve the performance of blocking EMI noise and to reduce the electrical resistance between the reinforcing member and the ground of the board.

Hereinafter, embodiments will be clearly elucidated via description thereof with reference to the accompanying drawings. In the following description of the embodiments, it will be understood that, when an element such as a layer (film), region, pattern, or structure is referred to as being "on" or "under" another element, it can be "directly" on or under the other element, or can be "indirectly" disposed such that an intervening element may also be present. In addition, it will also be understood that the criteria for "on" or "under" are determined on the basis of the drawings.

In the drawings, the dimensions of layers may be exaggerated, omitted or illustrated schematically for clarity and convenience of description. In addition, the dimensions of constituent elements may not accurately reflect the actual dimensions thereof.

Hereinafter, a camera module according to an embodiment will be described with reference to the accompanying drawings. For the convenience of description, although the camera module according to the embodiment is described using a rectangular coordinate system (x, y, z), the lens moving unit may be described using some other coordinate systems, and the embodiments are not limited with regard thereto. In the respective drawings, the X-axis direction and the Y-axis direction mean directions perpendicular to an optical axis, i.e. the Z-axis. The Z-axis direction, which is the optical-axis direction, may be referred to as a "first direction", the X-axis direction may be referred to as a "second direction", and the Y-axis direction may be referred to as a "third direction".

The camera module according to the embodiment of the present invention is capable of performing an "auto-focusing function". Here, the "auto-focusing function" serves to automatically focus an image of a subject on an image sensor surface.

In addition, the camera module according to the embodiment may perform a function of "handshake correction". Here, the function of "handshake correction" may serve to prevent the contour line of a captured image from being indistinctly formed due to vibration caused by shaking of the user's hand when capturing a still image.

<FIG> is a cross-sectional view of the camera module <NUM> according to the embodiment.

Referring to <FIG>, the camera module <NUM> may include a board <NUM>, a holder <NUM> disposed on the board <NUM>, a lens moving unit <NUM> mounted on the holder <NUM>, a connector <NUM> disposed on the board <NUM>, a noise-blocking unit <NUM>, a reinforcing member <NUM> disposed on the board <NUM>, and an adhesive <NUM> interposed between the reinforcing member <NUM> and the board <NUM>.

The board <NUM> may include a plurality of pattern layers, an insulation layer interposed between the plurality of pattern layers, cover layers disposed on the outermost pattern layers, among the plurality of pattern layers, so as to protect the pattern layers, and a contact (or a via) adapted to conductively connect the pattern layers to each other.

The board <NUM> may include a first region <NUM> in which the lens moving unit <NUM> is disposed, a second region <NUM> in which the connector <NUM> is disposed, and a third region <NUM> connecting the first region <NUM> to the second region <NUM>.

The first region <NUM> of the board <NUM> may alternatively be referred to as a "first board", the second region <NUM> of the board may alternatively be referred to as a "second board", and the third region <NUM> of the board <NUM> may alternatively be referred to as a "connecting board".

In another embodiment, the first region <NUM> or the first board of the board <NUM> may be included in the lens moving unit <NUM>.

Each of the first region <NUM> and the second region <NUM> of the board <NUM> may include a flexible substrate <NUM>-<NUM> and rigid substrates <NUM>-<NUM> and <NUM>-<NUM>. The reason for this is because each of the first region <NUM> and the second region <NUM> requires a predetermined strength in order to be capable of supporting the lens moving unit <NUM> and the connector <NUM>.

For example, each of the first region <NUM> and the second region <NUM> of the bard <NUM> may include a first rigid substrate <NUM>-<NUM>, disposed on the flexible substrate <NUM>-<NUM>, and a second rigid substrate <NUM>-<NUM>, disposed beneath the flexible substrate <NUM>-<NUM>.

The third region <NUM> of the board <NUM> may include the flexible substrate <NUM>-<NUM>. The flexible substrate <NUM>-<NUM> included in the first to third regions <NUM> to <NUM> of the board <NUM> may be integrally formed.

Although each of the first region <NUM> and the second region <NUM> may be a rigid substrate and the third region may be a flexible substrate, as described above, the disclosure is not limited thereto. In another embodiment, at least one of the first to third regions <NUM> to <NUM> of the board <NUM> may include a rigid substrate, and the remaining ones of the first to third regions <NUM> to <NUM> may include a flexible substrate.

<FIG> is a cross-sectional view of an embodiment of the board <NUM> shown in <FIG>.

Referring to <FIG>, the board <NUM> may include a plurality of pattern layers <NUM>-<NUM> to <NUM>-<NUM>, which are disposed so as to be spaced apart from each other in the optical-axis direction or in the vertical direction, insulation layers (or insulation barriers or insulation films) <NUM>-<NUM> to <NUM>-<NUM> interposed between the plurality of pattern layers <NUM>-<NUM> to <NUM>-<NUM> so as to insulate the pattern layers from each other, and cover layers 81a, 81b, <NUM>-<NUM> and <NUM>-<NUM> for protecting the plurality of pattern layers <NUM>-<NUM> to <NUM>-<NUM> from external impact or the like.

Referring to <FIG>, the flexible substrate <NUM>-<NUM> may include an insulation layer <NUM>-<NUM>, a pattern layer <NUM>-<NUM> disposed on the insulation layer <NUM>-<NUM>, and a pattern layer <NUM>-<NUM> disposed beneath the insulation layer <NUM>-<NUM>.

The first rigid substrate <NUM>-<NUM> may include pattern layers <NUM>-<NUM> and <NUM>-<NUM> disposed on the flexible substrate <NUM>-<NUM> (for example, the pattern layer <NUM>-<NUM>), an insulation layer <NUM>-<NUM> interposed between the pattern layers <NUM>-<NUM> and <NUM>-<NUM>, and an insulation layer <NUM>-<NUM> interposed between the flexible substrate <NUM>-<NUM> (for example, the pattern layer <NUM>-<NUM>) and the first rigid substrate <NUM>-<NUM> (for example, the pattern layer <NUM>-<NUM>).

The second rigid substrate <NUM>-<NUM> may include pattern layers <NUM>-<NUM> and <NUM>-<NUM> disposed beneath the flexible substrate <NUM>-<NUM> (for example, the pattern layer <NUM>-<NUM>), an insulation layer <NUM>-<NUM> interposed between the flexible substrate <NUM>-<NUM> (for example, the pattern layer <NUM>-<NUM>), and an insulation layer <NUM>-<NUM> interposed between the pattern layers <NUM>-<NUM> and <NUM>-<NUM>.

The insulation layer <NUM>-<NUM> of the board <NUM> may be a flexible insulation layer, for example, a polyimide layer capable of being flexibly bent.

Each of the insulation layers <NUM>-<NUM>, <NUM>-<NUM>, <NUM>-<NUM> and <NUM>-<NUM> of the board <NUM> may be a rigid insulation or a prepreg layer, which has a greater strength or hardness than the flexible insulation layer.

For example, each of the pattern layers <NUM>-<NUM> to <NUM>-<NUM> may alternatively be referred to as a copper foil, a conductive layer or a conductive pattern, and each of the insulation layers <NUM>-<NUM> to <NUM>-<NUM> may alternatively be referred to as an insulation barrier or an insulation film.

Referring to <FIG>, although the number of pattern layers of the flexible substrate <NUM>-<NUM> is two and the number of pattern layers of each of the first and second rigid substrates <NUM>-<NUM> and <NUM>-<NUM> is two, the disclosure is not limited thereto. In another embodiment, the number of pattern layers of the flexible substrate <NUM>-<NUM> and the number of pattern layers of each of the first and second rigid substrates <NUM>-<NUM> and <NUM>-<NUM> may be one or more.

The cover layers of the board <NUM> may include a cover layer 81a disposed on the pattern layer <NUM>-<NUM> of the first rigid substrate <NUM>-<NUM>, a cover layer 81b disposed on the pattern layer <NUM>-<NUM> of the second rigid substrate <NUM>-<NUM>, a cover layer <NUM>-<NUM> disposed on the pattern layer <NUM>-<NUM> of the flexible substrate <NUM>-<NUM> of the third region <NUM>, and a cover layer <NUM>-<NUM> disposed beneath the pattern layer <NUM>-<NUM> of the flexible substrate <NUM>-<NUM> of the third region <NUM>. Each of the cover layers of the board <NUM> may be made of an insulation material, for example, a solder resist material.

Furthermore, the board <NUM> may include a via adapted to conductively connect two pattern layers to each other, among the pattern layers <NUM>-<NUM> to <NUM>-<NUM> of the flexible substrate <NUM>-<NUM> and the first and second rigid substrates <NUM>-<NUM> and <NUM>-<NUM>. Here, the via may alternatively be referred to as a contact or a contact via.

For example, the board <NUM> may include at least one via <NUM>-<NUM>, adapted to conductively connect the pattern layers <NUM>-<NUM> to <NUM>-<NUM> of the flexible substrate <NUM>-<NUM> to each other, and at least one via <NUM>-<NUM> to <NUM>-<NUM>, adapted to conductively connect two of the pattern layers <NUM>-<NUM> to <NUM>-<NUM> of the first and second rigid substrates <NUM>-<NUM> and <NUM>-<NUM> to each other.

A cavity <NUM> in the board <NUM> may expose the pattern layer <NUM>-<NUM> of the board <NUM> from a second surface 11b of the second region <NUM> of the board <NUM>. Here, the cavity <NUM> may alternatively be referred to as a recess.

The pattern layer <NUM>-<NUM> may include a "ground layer", or may alternatively be referred to as a "ground layer" or an "earth layer".

The portion of the ground layer <NUM>-<NUM> that is exposed through the cavity <NUM> may form the bottom surface of the cavity <NUM> in the second board <NUM>.

The holder <NUM> may be disposed on the first region <NUM>, and the lens moving unit <NUM> may be disposed or mounted on the holder <NUM> disposed on the board <NUM>.

The connector <NUM> may be disposed on the second region (or the "second board") <NUM> of the board <NUM>. For example, the connector <NUM> may be disposed on one surface of the second region <NUM> of the board <NUM>. The cavity <NUM> may be formed in the outer surface of the second region <NUM> of the board <NUM>, and may expose the ground layer from the other surface of the second region <NUM>.

The connector <NUM>, the second region (or the second board) <NUM> of the board <NUM>, at least a portion of the noise-blocking unit <NUM> and the reinforcing member <NUM> may together constitute a "connector" unit.

For example, the holder <NUM> and the lens moving unit <NUM> may be disposed on the first surface 11a of the first region <NUM> of the board <NUM>, and the connector <NUM> may be disposed on the first surface 11a of the second region <NUM> thereof.

The terminals of the lens moving unit <NUM> may be conductively connected to at least one of the pattern layers (for example, <NUM>-<NUM> to <NUM>-<NUM>) of the first region <NUM> of the board <NUM>, and the terminals of the connector <NUM> may be conductively connected to at least one of the pattern layers <NUM>-<NUM> to <NUM>-<NUM> of the second region <NUM> of the board <NUM>.

For example, the terminals of the lens moving unit <NUM> may be conductively connected to the pattern layers <NUM>-<NUM> and <NUM>-<NUM> of the flexible substrate <NUM>-<NUM> of the first region <NUM>, and the terminals of the connector <NUM> may be conductively connected to the pattern layers <NUM>-<NUM> and <NUM>-<NUM> of the flexible substrate <NUM>-<NUM> of the second region <NUM> of the board <NUM>. The terminals of the lens moving unit <NUM> may be conductively connected to the terminals of the connector <NUM> via the flexible substrate <NUM>-<NUM>.

The noise-blocking unit <NUM> is disposed beneath the second region <NUM> of the board <NUM>.

Furthermore, the noise-blocking unit <NUM> may be disposed at both upper and lower portions of the flexible substrate <NUM>-<NUM> of the third region <NUM> of the board <NUM>. The noise-blocking unit <NUM> may alternatively be referred to as a noise-blocking layer, an "EMI (Electro Magnetic Interference)-blocking unit", an EMI-shielding unit, an EMI film or an EMI tape.

The noise-blocking unit <NUM> may include a first noise-blocking portion <NUM> and a second noise-blocking portion <NUM>.

The first noise-blocking portion <NUM> may be disposed beneath the second region <NUM> and the third region <NUM> of the board <NUM>. For example, the first noise-blocking portion may include a first portion (or a first region) 71a, which is disposed in the cavity <NUM> in the second region <NUM> of the board <NUM>, and a second portion (or a second region) 71b, which is disposed beneath the flexible substrate <NUM>-<NUM> of the third region <NUM> of the board <NUM>.

The second noise-blocking portion <NUM> may be disposed on the third region <NUM> of the board <NUM>.

The noise-blocking unit <NUM> may further include a portion that is disposed on the upper surface and/or the lower surface of the first region <NUM> of the board <NUM>.

The second portion 71b of the first noise-blocking portion <NUM> may be disposed or formed only on a portion of the third region (or the connecting board) <NUM>.

The first noise-blocking portion <NUM> may further include a third portion 71c, which is disposed between the first portion 71a and the second portion 71b so as to connect the first portion 71a to the second portion 71b.

For example, the third portion 71c may be disposed on the lower surface (or the cover layer 81b) of the second region <NUM> of the board <NUM>, which connects a fourth inner surface 31d of the cavity <NUM> to a fourth outer surface 5d of the second region <NUM> of the board <NUM>.

The reinforcing member <NUM> may be disposed beneath the second region (or the "second board") <NUM> of the board <NUM>.

For example, the reinforcing member <NUM> may be disposed beneath the first portion 71a of the first noise-blocking portion <NUM>, which is disposed beneath the second region <NUM> of the board <NUM>.

For example, the reinforcing member <NUM> may be disposed above the cavity <NUM> in the second board <NUM> and on the upper surface of the second board <NUM>.

The reinforcing member <NUM> may be made of conductive material having high thermal conductivity, for example, metal. Although the reinforcing member <NUM> may be made of, for example, stainless steel, aluminum or the like, the disclosure is not limited thereto.

The reinforcing member <NUM> may be conductively connected to the ground terminal of the board <NUM> so as to serve as a ground for protecting the camera module from electrostatic discharge (ESD).

The adhesive <NUM> may be disposed between the reinforcing member <NUM> and the first noise-blocking potion <NUM>.

For example, the adhesive <NUM> may be disposed between the first portion 71a of the first noise-blocking portion <NUM> and the reinforcing member <NUM> so as to fix or attach the reinforcing member <NUM> to the second region <NUM> of the board <NUM>.

Referring to <FIG>, although the upper surface of the reinforcing member <NUM> may be spaced apart from the lower surface of the second board <NUM> (for example, the lower surface of the cover layer 81b), the disclosure is not limited thereto. In another embodiment, the upper surface of the reinforcing member <NUM> may be in contact with the lower surface of the second board <NUM> (for example, the lower surface of the cover layer 81b).

A portion of the adhesive <NUM> may be disposed in the cavity <NUM> in the second board.

The second region (or the second board) <NUM> of the board <NUM> according to the embodiment may have therein the cavity <NUM> having an inlet through which a portion of the pattern layer (for example, <NUM>-<NUM>, see <FIG>) is exposed.

Here, the region of the pattern layer <NUM>-<NUM> that is exposed through the cavity <NUM> may serve as a ground layer for grounding the board <NUM>, or may be conductively connected to the ground of the board <NUM>.

The region of the pattern layer <NUM>-<NUM> that is exposed through the cavity <NUM> may be conductively connected to the ground pin or the terminal of the connector <NUM>.

For example, the cavity <NUM> may be formed by cutting away a portion of the cover layer 81b of the second region <NUM> of the board <NUM>, and the lower surface of a portion of the pattern layer (for example, <NUM>-<NUM>, see <FIG>) of the second region <NUM> may be exposed through the cavity <NUM>.

The first noise-blocking portion <NUM> may be disposed in the cavity <NUM> in the second region <NUM> of the board <NUM>. At least a portion of the periphery of the first noise-blocking portion <NUM> may be disposed in the cavity <NUM>.

For example, the first portion 71a of the first noise-blocking portion <NUM> may be disposed in the cavity <NUM> in the second region <NUM> of the board <NUM>.

The adhesive <NUM> may be disposed on the first noise-blocking portion <NUM> disposed in the cavity <NUM>, and the reinforcing member <NUM> may be disposed on the adhesive <NUM>.

By disposing the first portion 71a of the first noise-blocking portion <NUM> in the cavity <NUM> in the second region <NUM> of the board <NUM> and then disposing the adhesive <NUM> on the first portion 71a of the first noise-blocking portion <NUM> disposed in the cavity <NUM>, the embodiment is able to block or reduce the noise generated by the camera module and to reduce the resistance between the reinforcing member <NUM> and the board <NUM> (for example, the ground (GND)).

<FIG> illustrate a procedure of coupling the noise-blocking unit <NUM>, the adhesive <NUM> and the reinforcing member <NUM> to the board <NUM>. <FIG> is a cross-sectional view taken along line A-B in <FIG>. <FIG> is a cross-sectional view taken along line C-D in <FIG>.

<FIG> are bottom views illustrating the second region <NUM> and the third region <NUM> of the board <NUM>. <FIG> are cross-sectional views illustrating states in which <FIG> is rotated to <NUM> degrees.

Referring to <FIG>, the cavity <NUM> is formed in the second surface of the second region <NUM> of the board <NUM> so as to expose the pattern layer (or the ground layer) <NUM>-<NUM> from the second surface. The exposed ground layer is not limited to the shape shown in <FIG> (for example, an 'L' shape), and may have any of various polygonal shapes (for example, a rectangular shape, a triangular shape or the like) or a circular shape.

Referring to <FIG>, the left and lower end of the pattern layer <NUM>-<NUM> may not be exposed through the cavity <NUM>. The left and lower end of the pattern layer <NUM>-<NUM> may be provided with a ground layer (for example, a "first ground layer" or a "digital ground layer"), which is exposed through the cavity <NUM>, and another ground layer (for example, a "second ground layer" or an "analog ground layer"), which is separated or spaced apart from the first ground layer.

In another embodiment, the second ground layer may also be exposed through the cavity <NUM>, and the first noise-blocking portion <NUM> and the adhesive <NUM> may be disposed between the exposed ground layer and the reinforcing member <NUM>.

For example, the cavity <NUM> may be formed so as to expose the lower surface of the pattern layer <NUM>-<NUM> by removing a portion of the cover layer 81b of the second region <NUM> of the board <NUM>.

The second region <NUM> of the board <NUM> may have four outer surfaces 5a to 5d.

For example, the plan view of the second region <NUM> of the board <NUM> may have a rectangular shape having four sides 5a to 5d.

Each of the distances d1 and d2 between the outer surfaces (or sides) 5a to 5d of the second region <NUM> and the cavity <NUM> may range from <NUM> to <NUM>.

The depth H of the cavity <NUM> may be equal to the thickness of the cover layer 81b of the board <NUM>. For example, the depth H of the cavity <NUM> may be the length of the lens or the lens barrel <NUM> of the lens moving unit <NUM>. For example, the depth H may range from <NUM> to <NUM>. For example, the depth H may be <NUM>.

Referring to <FIG>, the portion 71a of the first noise-blocking portion <NUM> is disposed in the cavity <NUM> in the second region <NUM> of the board <NUM>.

The first noise-blocking portion <NUM> may include the first portion 71a disposed in the cavity <NUM> in the second region <NUM> of the board <NUM> and the second portion 71b disposed beneath the third region <NUM> of the board <NUM>. Furthermore, the first noise-blocking portion <NUM> may include the third portion connecting the first portion to the second portion.

For example, the second portion 71b of the first noise-blocking portion <NUM> may be disposed on the connecting board <NUM>, and the end of the first portion 71a may be disposed in the cavity <NUM> in the second board <NUM>. For example, a portion of the end of the first portion 71a may be disposed in the cavity <NUM>.

The first portion 71a of the first noise-blocking portion <NUM> may be disposed beneath the pattern layer <NUM>-<NUM> of the second region <NUM> of the board <NUM> that is exposed through the cavity <NUM>.

The cavity <NUM> in the board <NUM> may include the inner surfaces 31a to 31d and the bottom surface. Here, the inner surface of the cavity <NUM> may alternatively be referred to as a "side wall", a "side surface" or an "inner wall".

For example, the first inner surface 31a and the second inner surface 31b may face each other, and the third inner surface 31c and the fourth side surface 31d may face each other. The third inner surface 31c may connect one end of the first inner surface 31a to one end of the second inner surface 31b, and the fourth inner surface 31d may connect the other end of the first inner surface 31a to the other end of the second inner surface 31b.

The bottom surface of the cavity <NUM> may be one surface (for example, the lower surface) of the pattern layer <NUM>-<NUM> of the second region <NUM> of the board <NUM> that is exposed. The lower surface of the first portion 71a of the first noise-blocking portion <NUM> may be in contact with the bottom surface of the cavity <NUM>.

For example, the first portion 71a of the first noise-blocking portion <NUM> may include a first surface 21a (or a "first side surface") that faces the first inner surface 31a of the cavity <NUM>, a second surface 21b (or a "second side surface") that faces the second inner surface 31b of the cavity <NUM>, and a third surface 21c (or a "third side surface") that faces the third inner side surface 31c of the cavity <NUM>.

The side surface of the first portion 71a of the first noise-blocking portion <NUM> may be positioned in the cavity <NUM> in the second region <NUM> of the board <NUM>, and may be spaced apart from the second surface 11b of the second region <NUM> of the board <NUM>.

For example, the first surface 21a, the second surface 21b and the third surface 21c of the first portion 71a of the first noise-blocking portion <NUM> may be positioned in the cavity <NUM> in the second region <NUM>, and may be spaced apart from the second surface 11b of the second region <NUM> of the board <NUM>.

The vertical length of the second portion 71b of the first noise-blocking portion <NUM> may be greater than the vertical length L3 of the first portion 71a. The reason for this is to improve the effect of blocking EMI in the third region <NUM> of the board <NUM>.

The length (or width) L3 of one side of the first noise-blocking portion <NUM> is less than the length (or width) L1 of one side of the cavity <NUM> in the second board <NUM>.

For example, the length of a first long side that is positioned at one side of the cavity <NUM> of the second board <NUM> may be greater than the length of a second long side that is positioned at the other side of the cavity <NUM>. For example, the first long side and the second long side may face each other.

For example, the length of a first short side that is positioned at one side of the cavity <NUM> in the second board <NUM> may be greater than the length of a second short side that is positioned at the other side of the cavity <NUM>. For example, the first short side and the second short side may face each other.

For example, the length L3 of a short side of the first noise-blocking portion <NUM> may be less than the length L1 of a long side of the cavity <NUM> in the second board <NUM>.

The vertical length L3 of the first portion 71a of the first noise-blocking portion <NUM> may be less than the vertical length L1 of the cavity <NUM> in the board <NUM> (L3 < L1).

The horizontal length L4 of the first portion 71a of the first noise-blocking portion <NUM> may be less than the horizontal length L2 of the cavity <NUM> in the board <NUM> (L4 < L2).

For example, the vertical direction may be the direction of Line A-B in <FIG> or the y-axis direction in <FIG>, which is perpendicular to the optical-axis direction of the lens moving unit <NUM>.

Alternatively, the vertical direction may be a direction that is perpendicular to the optical-axis direction of the lens moving unit <NUM> (or the axis of the image sensor <NUM>) and extends from the first outer surface 5a to the second outer surface 5b of the second region <NUM> of the board <NUM>.

Alternatively, the vertical direction may be a direction perpendicular to a direction that extends from the image sensor <NUM> to the connector <NUM>.

For example, the horizontal direction may be the direction of line C-D in <FIG> or the x-axis direction in <FIG>, which is perpendicular to the optical-axis direction of the lens moving unit <NUM>.

For example, the vertical direction may be a direction that extends from the first inner surface 31a to the second inner surface 31b of the cavity <NUM> in the board <NUM>, and the horizontal direction may be a direction that extends from the third inner surface 31c to the fourth inner surface 31d of the cavity <NUM> of the board <NUM>.

For example, the area of the lower surface (or the upper surface) of the first portion 71a of the first noise-blocking portion <NUM> disposed in the cavity <NUM> in the board <NUM> may be smaller the area of the bottom surface of the cavity <NUM> in the board <NUM> (or the area of the exposed lower surface of the pattern layer <NUM>-<NUM>).

The distance d3 between the first surface 21a of the first portion 71a of the first noise-blocking portion <NUM> and the first outer surface 5a of the second region <NUM> of the board <NUM> or the distance d3 between the second surface 21b of the first portion 71a of the first noise-blocking portion <NUM> and the second outer surface 5b of the second region <NUM> of the board <NUM> may be greater than the distance d1 (d3 > d1).

The distance d4 between the third surface 21c of the first portion 71a of the first noise-blocking portion <NUM> and the third outer surface 5c of the second region <NUM> of the board <NUM> may be greater than the distance d2 (d4 > d2).

Because the distance d3 is greater than the distance d1 (d3 > d1) and the distance d4 is greater than the distance d2 (d4 > d2), the first portion 71a of the first noise-blocking portion <NUM> may be disposed in the cavity <NUM>.

In <FIG>, the distance d4 may be greater than the distance d3 (d4 > d3). For example, the distance d3 may range from <NUM> to <NUM>, and the distance d4 may range from <NUM> to <NUM>. In another embodiment, the distance d4 may be equal to the distance d3 (d4 = d3) or may be less than the distance d3 (d4 < d3).

Referring to <FIG>, the first to third surfaces 21a to 21c of the first portion 71a of the first noise-blocking portion <NUM> may be spaced apart from the first to third inner surfaces 31a to 31c of the cavity <NUM> in the board <NUM>.

For example, the first surface 21a may be spaced apart from the first inner surface 31a of the cavity <NUM>, the second surface 21b may be spaced apart from the second inner surface 31b of the cavity <NUM>, and the third surface 21c may be spaced apart from the third inner surface 31c of the cavity <NUM>.

The distance between the third surface 21c of the first noise-blocking portion <NUM> and the third surface 31c of the cavity <NUM> may be different from the distance between the first surface 21a of the first noise-blocking portion <NUM> and the first inner surface 31a of the cavity <NUM> and/or the distance between the second surface 21b of the first noise-blocking portion <NUM> and the second inner surface 31b of the cavity <NUM>.

For example, the distance between the third surface 21c of the first noise-blocking portion <NUM> and the third surface 31c of the cavity <NUM> may be greater than the distance between the first surface 21a and the first inner surface 31a of the cavity <NUM> and/or the distance between the second surface 21b and the second inner surface 31b of the cavity <NUM>.

For example, the distance between the inner surfaces 31a to 31d of the cavity <NUM> and the end surfaces (for example, 21a to 21c) of the first noise-blocking portion <NUM> may be greater than the distance between the inner surfaces 31a to 31d of the cavity <NUM> and the end surfaces of the adhesive <NUM>. The reason for this is to increase the surface area of the adhesive <NUM> and thus to increase the adhesive force between the reinforcing member <NUM> and the second board <NUM>.

For example, although the horizontal (or vertical) distance between the inner surfaces 31a to 31d of the cavity <NUM> and the end surfaces of the reinforcing member <NUM> may be greater than the horizontal (or vertical) distance between the inner surfaces 31a to 31d of the cavity <NUM> and the end surfaces (for example, 21a to 21c) of the first noise-blocking portion <NUM>, the disclosure is not limited thereto. In another embodiment, the former may be equal to or less than the latter.

For example, although the horizontal (or vertical) distance between the inner surfaces 31a to 31d of the cavity <NUM> and the end surfaces of the reinforcing member <NUM> may be greater than the horizontal (or vertical) distance between the inner surfaces 31a to 31d of the cavity <NUM> and the end surfaces of the adhesive <NUM>, the disclosure is not limited thereto. In another embodiment, the former may be equal to or less than the latter.

Referring to <FIG> and <FIG>, the reinforcing member <NUM> is attached to the first portion 71a of the first noise-blocking portion <NUM> disposed in the cavity <NUM> via the adhesive <NUM>.

For example, the reinforcing member <NUM> may be fixed or attached to the first portion 71a of the first noise-blocking portion <NUM> in such a way as to apply or form the adhesive <NUM> to one surface (for example, the upper surface) of the reinforcing member <NUM> and then to press the reinforcing member <NUM> having thereon the adhesive <NUM> to the first portion 71a of the first noise-blocking portion <NUM> using a hot press. By virtue of the pressing operation, the upper surface of the reinforcing member <NUM> may come into contact with the second surface (or the lower surface) 11b of the second region <NUM> of the board <NUM>.

The adhesive <NUM> may be conductive adhesive, or may include conductive adhesive (for example, conductive particles). For example, the adhesive <NUM> may be FGBF-<NUM>.

The side surface of the adhesive <NUM> may be spaced apart from the second surface 11b of the second region <NUM> of the board <NUM>.

The vertical length L5 of the adhesive <NUM> may be less than the vertical length L1 of the cavity <NUM> in the board <NUM> (L5 < L1). The horizontal length L6 of the adhesive <NUM> may be less than the horizontal length L2 of the cavity <NUM> in the board <NUM> (L6 < L2).

The vertical length L5 of the adhesive <NUM> may be greater than or equal to the vertical length L3 of the first portion 71a of the first noise-blocking portion <NUM>.

The horizontal length L6 of the adhesive <NUM> may greater than or equal to the horizontal length L4 of the first portion 71a of the first noise-blocking portion <NUM>.

The distance d5 between the first side surface of the adhesive <NUM> and the first outer surface 5a of the second region <NUM> of the board <NUM> or the distance d5 between the second side surface of the adhesive <NUM> and the second outer surface 5b of the second region <NUM> of the board <NUM> may be greater than the distance d1 (d5 > d1). In another embodiment, the distance d5 may be equal to the distance d1 (d5 = d1).

The distance d6 between the third side surface of the adhesive <NUM> and the third outer surface 5c of the second region <NUM> of the board <NUM> may be greater than the distance d2 (d6 > d2). In another embodiment, the distance d6 may be equal to the distance d2 (d6 = d2).

For example, each of the distance d5 and the distance d6 may range from <NUM> to <NUM>.

d1:d3 may range from <NUM>:<NUM> to <NUM>:<NUM>, and d2:d4 may range from <NUM>:<NUM> to <NUM>:<NUM>.

d1:d5 may range from <NUM>:<NUM> to <NUM>:<NUM>, and d2:d6 may range from <NUM>:<NUM> to <NUM>:<NUM>.

If d3/d1 is less than <NUM>, because the difference between the horizontal length of the first portion 71a of the first noise-blocking portion <NUM> and the horizontal length of the cavity <NUM> is very small, a process margin required to dispose the first portion 71a of the first noise-blocking portion <NUM> is insufficient, and the first noise-blocking portion <NUM> may escape outwards from the cavity <NUM>, with the result that the resistance value between the reinforcing member <NUM> and the ground of the board <NUM> may increase to <NUM> ohm or higher.

If d3/d1 is greater than <NUM>, the surface area of the first portion 71a of the first noise-blocking portion <NUM> may decrease, and thus the ability to block noise generated by the camera module may be deteriorated, thereby deteriorating the RF sensitivity of the optical device on which the camera module is mounted.

If d5/d1 and/or d6/d2 is less than <NUM>, the horizontal length of the adhesive <NUM> may become greater than the horizontal length of the cavity <NUM>, and the adhesive <NUM> may thus be disposed on the lower surface of the second region <NUM> outside the cavity <NUM>, with the result that the resistance value between the reinforcing member <NUM> and the ground of the board <NUM> may increase to <NUM> ohm or higher.

If d5/d1 or d6/d2 is greater than <NUM>, because the surface area of the adhesive <NUM> decreases, the adhesive force between the reinforcing member <NUM> and the board <NUM> may decrease, and thus the reinforcing member <NUM> may easily escape the board <NUM>.

Referring to <FIG>, the distance d7 between the first outer surface 5a (or the first outer surface 6b) of the second region <NUM> of the board <NUM> and the first side surface (or second side surface) of the reinforcing member <NUM> may be less than the distance d1 (d7 < d1). The distance d8 between the third outer surface 5c of the second region <NUM> of the board <NUM> and the third side surface of the reinforcing member <NUM> may be less than the distance d2 (d8 < d2).

For example, each of the distances d1 to d8 may be the shortest distance between two planes parallel to the two surfaces in question.

The thickness (for example, the thickness of the first portion 71a) T1 of the first noise-blocking portion <NUM> may be less than the depth H of the cavity <NUM> in the board <NUM> (T1 < H). Here, the thickness of the first noise-blocking portion <NUM> may be the length of the first noise-blocking portion <NUM> in the optical-axis direction.

For example, the thickness (the thickness of the first portion 71a) T1 of the first noise-blocking portion <NUM> may range from <NUM> to <NUM>.

The side surfaces of the first portion 71a of the noise-blocking portion <NUM> may be positioned farther than the inner surfaces 31a to 31d of the cavity <NUM> from the outer surfaces 5a to 5c of the second region <NUM> of the board <NUM>.

The side surfaces of the adhesive <NUM> may be positioned farther than the inner surfaces 31a to 31d of the cavity <NUM> from the outer surfaces 5a to 5c of the second region <NUM> of the board <NUM>.

Furthermore, the outer surfaces of the reinforcing member <NUM> may be positioned closer than the side surfaces 31a to 31d of the cavity <NUM> in the board <NUM> to the outer surfaces 5a to 5c of the second region <NUM> of the board <NUM>.

The surface area of the first portion 71a of the noise-blocking portion <NUM>, which overlaps the second region <NUM> of the board <NUM> in the optical-axis direction of the lens moving unit <NUM> may be smaller than that of the bottom surface of the cavity <NUM>.

Furthermore, the surface are of the adhesive <NUM> that overlaps the second region <NUM> of the board <NUM> in the optical-axis direction may be smaller than that of the bottom surface of the cavity <NUM> in the board <NUM>.

The adhesive <NUM> may include adhesive resin and conductive particles.

<FIG> illustrates an embodiment of the adhesive <NUM>.

Referring to <FIG>, the adhesive <NUM> may include resin 83b and conductive particles 83a. The conductive particles 83a of the adhesive <NUM> are not depicted in <FIG>.

Although the resin 83b may be a nonconductive resin layer, the disclosure is not limited thereto. In another embodiment, the resin 83b may be a conductive resin layer. For example, the resin 83b may be FGBF-<NUM>.

For example, the diameter of the conductive particle 83a may be greater than the thickness of the noise-blocking layer <NUM>. Alternatively, the diameter of the conductive particle 83a may be greater than or equal to the depth H of the cavity <NUM>.

For example, the thickness T2 of the adhesive <NUM> may be greater than the thickness T1 of the first noise-blocking portion <NUM> (T2 > T1). For example, the thickness T2 of the adhesive <NUM> may range from <NUM> to <NUM>. For example, the thickness T2 of the adhesive <NUM> may be the maximum thickness of the adhesive, in consideration of the diameter of the conductive particles 83a.

The conductive particles 83a of the adhesive <NUM> may come into contact with the exposed pattern layer <NUM>-<NUM> of the second region <NUM> of the board <NUM> through the first noise-blocking portion <NUM> (for example, the first portion 71a).

The reinforcing member <NUM> may be conductively connected to the pattern layer <NUM>-<NUM> of the second region <NUM> of the board <NUM>.

The thickness T3 of the reinforcing member <NUM> may be less than the overall thickness of the board <NUM> but greater than the thickness of the flexible substrate <NUM>-<NUM> and the thickness of the adhesive <NUM>. For example, the thickness of the reinforcing member <NUM> may range from <NUM> to <NUM>.

The thickness T3 of the reinforcing member <NUM> may be greater than the thickness T1 of the first noise-blocking portion <NUM> and the thickness T2 of the adhesive <NUM> (T3 > T1, T2).

Referring to <FIG>, the upper surface of the reinforcing member <NUM> may be in contact with the second surface (or the lower surface) 11b of the second region <NUM> of the board <NUM>. For example, the upper surface of the periphery of the reinforcing member <NUM> may be in contact with the second surface (or the lower surface) 11b of the second region <NUM> of the board <NUM>.

In another embodiment, the upper surface of the periphery of the reinforcing member <NUM> may be spaced apart from the second surface 11b of the second region <NUM> of the board <NUM>.

<FIG> illustrates the case in which the size of an adhesive <NUM> and the size of an EMI film <NUM> are larger than the size of a groove <NUM>-<NUM> in a board <NUM>.

In this case, because the size of the EMI film <NUM> and the size of the adhesive <NUM> are larger than the size of the groove <NUM>-<NUM> in the board <NUM> through which a ground pattern layer 10a of the board <NUM> is exposed, when the EMI film <NUM> is attached to the lower surface of the board <NUM> and a reinforcing member <NUM> having the adhesive <NUM> applied thereto is attached to the EMI film <NUM>, a void or a lifting phenomenon may occur between the ground pattern layer 10a of the board <NUM>, which is exposed through the groove <NUM>-<NUM>, and the reinforcing member <NUM>, as illustrated in <FIG>.

Furthermore, because the void is created between the adhesive <NUM> and the ground pattern layer 10a, the conductive particles of the adhesive <NUM> may have difficulty coming into contact with the ground pattern layer 10a through the EMI film <NUM> even when pressed using a hot press, whereby the resistance (for example, electrical resistance) between the ground of the board <NUM> and the reinforcing member <NUM> may increase. For example, in the case of <FIG>, the resistance between the ground of the board <NUM> and the reinforcing member <NUM> may be <NUM> ohm or higher.

In contrast, the embodiment of the present invention is able to block or reduce EMI noise generated from the camera module <NUM> by positioning the first noise-blocking portion <NUM> between the pattern layer <NUM>-<NUM> that is exposed through the cavity <NUM> in the second region <NUM> of the board <NUM> and the reinforcing member <NUM>. In addition, since the first noise-blocking portion <NUM> and the adhesive <NUM> are disposed in the cavity <NUM> such that the first noise-blocking portion <NUM> and the adhesive <NUM> are in close contact with the pattern layer <NUM>-<NUM>, which is exposed through the cavity <NUM>, it is possible to reduce the electrical resistance between the pattern layer <NUM>-<NUM> of the board <NUM>, which is used as the ground, and the reinforcing member <NUM>, and it is thus possible to use the reinforcing member <NUM> as the ground of the board <NUM>. Specifically, according to the embodiment, the electrical resistance between the pattern layer <NUM>-<NUM> of the board <NUM> and the reinforcing member <NUM> may be lower than <NUM> ohm.

A camera module according to another embodiment may further include a noise-blocking portion, which is disposed at at least one of the first surface 11a and the second surface 11b of the first region <NUM> and the first surface 11a of the second region <NUM> of the board <NUM>.

<FIG> is a perspective view of a camera module according to another embodiment of the present invention.

Referring to <FIG>, the camera module <NUM> may include a lens or a lens barrel <NUM>, the lens moving unit <NUM>, an adhesive member <NUM>, a filter <NUM>, a holder <NUM>, a board <NUM>, an image sensor <NUM>, a motion sensor <NUM>, a controller <NUM>, a connector <NUM>, a noise-blocking unit <NUM>, an adhesive (not shown) and a reinforcing member <NUM>. The same numerals as those in <FIG> indicate the same components, and descriptions of the same components will be made briefly or omitted.

The description regarding the noise-blocking unit <NUM>, which has been made with reference to <FIG>, may also be applied to the noise-blocking unit <NUM> shown in <FIG>, the description regarding the adhesive <NUM>, made with reference to <FIG>, may also be applied to the noise-blocking unit (not shown) in <FIG>, and the description regarding the reinforcing member, made with reference to <FIG>, may also be applied to the reinforcing member <NUM> shown in <FIG>.

The lens or lens barrel <NUM> may be mounted on the lens moving unit <NUM>.

The lens moving unit <NUM> may be referred to as a "sensing unit", an "imaging unit", a "VCM (Voice Coil Motor)" or a "lens moving apparatus".

For example, the lens moving unit <NUM> may be an AF lens moving unit or an OIS lens moving unit. Here, the AF lens moving unit may be a unit capable of performing only an autofocus function, and the OIS lens moving unit may be a unit capable of performing both an autofocus function and an OIS (Optical Image Stabilizer) function.

For example, the lens moving unit <NUM> may be an AF lens moving device. The AF lens moving device may include a housing, a bobbin disposed in the housing, a coil disposed at the bobbin, a magnet disposed at the housing, at least one elastic member coupled both to the bobbin and to the housing, and a base disposed under the bobbin (and/or the housing). The elastic member may include, for example, the above-described upper and lower elastic members.

The coil may be provided with a drive signal (for example, driving current), and the bobbin may be moved in the optical-axis direction using the electromagnetic force resulting from the interaction between the coil and the magnet. In another embodiment, the coil may be disposed at the housing, and the magnet may be disposed at the bobbin.

For AF feedback operation, the AF lens moving device may further include a sensing magnet disposed at the bobbin, an AF position sensor (for example, a hall sensor) disposed at the housing, and a circuit board, at which the AF position sensor is disposed and which is disposed or mounted on the housing and/or the base. In another embodiment, the AF position sensor may be disposed at the bobbin, and the sensing magnet may be disposed at the housing.

The circuit board may be conductively connected to the coil and the AF position sensor. A drive signal may be provided to the coil and the AF position sensor via the circuit board, and the output of the AF position sensor may be transmitted to the circuit board.

The camera module according to another embodiment may include a housing, which is coupled to the lens or lens barrel <NUM> so as to hold the lens or lens barrel <NUM>, in place of the lens moving unit <NUM>, and the housing may be coupled or attached to the upper surface of the holder <NUM>. The housing, which is attached or fixed to the holder <NUM>, may be immovable, and may be maintained in the position in the state of being attached to the holder <NUM>.

For example, the lens moving unit <NUM> may be an OIS lens moving unit.

The OIS lens moving unit may include a housing, a bobbin disposed in the housing so as to mount a lens or lens barrel <NUM> thereon, a first coil disposed at the bobbin, a magnet disposed at the housing so as to face the first coil, at least one upper elastic member coupled both to the upper portion of the bobbin and to the upper portion of the housing, at least one lower elastic member coupled both to the lower portion of the bobbin and to the lower portion of the housing, a second coil disposed under the bobbin (and/or the housing), a circuit board disposed under the second coil, and a base disposed under the circuit board.

The OIS lens moving unit may further include a cover member, which is coupled to the base so as to define a space for accommodating the components of the lens moving unit therein in conjunction with the base.

The OIS lens moving unit may further include a support member, which conductively connects the circuit board to the upper elastic member and supports the housing with respect to the base. Each of the first coil and the second coil may be conductively connected to the circuit board <NUM>, and may receive a drive signal (drive current) from the circuit board.

For example, the upper elastic member may include a plurality of upper springs, and the support member may include support members connected to the upper springs. The first coil may be conductively connected to the circuit board via the upper springs and the support members. The circuit board may include a plurality of terminals, and some of the plurality of terminals may be conductively connected to the first coil and/or the second coil.

By virtue of the electromagnetic force resulting from the interaction between the first coil and the magnet, the bobbin and the lens or lens barrel <NUM> coupled to the bobbin is movable in the optical-axis direction such that the displacement of the bobbin in the optical-axis direction is controlled, thereby realizing an AF operation.

Furthermore, by virtue of the electromagnetic force resulting from the interaction between the second coil and the magnet, the housing is movable in a direction perpendicular to the optical-axis direction, thereby realizing handshake correction or OIS operation.

For AF feedback operation, the OIS lens moving unit may further include a sensing magnet disposed at the bobbin, and an AF position sensor (for example, a hall sensor) disposed at the housing. The OIS lens moving unit may further include a circuit board (not shown), which is disposed at the housing and/or the base and on which the AF position sensor is disposed or mounted. In another embodiment, the AF position sensor may be disposed at the bobbin, and the sensing magnet may be disposed at the housing. The OIS lens moving unit may further include a balancing magnet disposed at the bobbin so as to correspond to the sensing magnet.

The AF position sensor may output an output signal corresponding to the result of detection of variation in the intensity of the magnetic field of the sensing magnet due to movement of the bobbin. The AF position sensor may be conductively connected to the circuit board via the upper elastic member (or the lower elastic member) and/or the support member. The circuit board may provide a drive signal to the AF position sensor, and the output from the AF position sensor may be transmitted to the circuit board. The controller <NUM> may sense or detect the displacement of the bobbin using the output from the AF position sensor.

The holder <NUM> may be disposed under the lens moving unit <NUM> (for example, the base). The filter <NUM> may be mounted on the holder <NUM>, and the holder <NUM> may include a projection <NUM> on which the filter <NUM> is to be seated.

The adhesive member <NUM> may couple or attach the lens moving unit <NUM> (for example, the base) to the holder <NUM>. In addition to the attachment function described above, the adhesive member <NUM> may serve to prevent contaminants from entering the lens moving unit <NUM>.

The adhesive member <NUM> may be thermohardening adhesive (for example, thermohardening epoxy) or ultraviolet-hardening adhesive (for example, ultraviolet-hardening epoxy).

The filter <NUM> may serve to prevent light within a specific frequency band that passes through the lens barrel <NUM> from being introduced into the image sensor <NUM>. The filter <NUM> may be, for example, an infrared-light-blocking filter, without being limited thereto. Here, the filter <NUM> may be oriented parallel to the X-Y plane.

The region of the holder <NUM> in which the filter <NUM> is mounted may be provided with a bore in order to allow the light that passes through the filter <NUM> to be introduced into the image sensor <NUM>.

The board <NUM> may be disposed under the holder <NUM>, and the image sensor <NUM> may be mounted on the board <NUM>. The image sensor <NUM> may be the region on which an image included in the light that passes through the filter <NUM> and is introduced thereinto is formed.

The board <NUM> may include, for example, various circuits, devices, and a controller in order to convert the image formed on the image sensor <NUM> into electrical signals and to transmit the electrical signals to external components.

The board <NUM> may be embodied as a board on which the image sensor may be mounted, on which a circuit pattern may be formed, and to which various devices may be coupled. The holder <NUM> may alternatively be referred to as a "sensor base", and the board <NUM> may alternatively be referred to as a "circuit board".

In another embodiment, some region of the board <NUM> may be embodied as being included in the lens moving unit <NUM> or as not being included in the lens moving unit <NUM>.

The image sensor <NUM> may receive an image included in the light introduced through the lens moving unit <NUM>, and may convert the received image into an electrical signal.

The filter <NUM> and the image sensor <NUM> may be disposed so as to be spaced apart from each other in the state of facing each other in the optical-axis direction.

The motion sensor <NUM> may be mounted on the board <NUM>, and may be conductively connected to the controller <NUM> through the circuit pattern formed on the board <NUM>.

The motion sensor <NUM> may output rotational angular speed caused by motion of the camera module <NUM>. The motion sensor <NUM> may be embodied as a dual-axis or triple-axis gyro sensor or an angular speed sensor.

The controller <NUM> may be mounted on the board <NUM>, and may be conductively connected to the lens moving unit <NUM>. The controller <NUM> may provide the lens moving unit <NUM> with a signal for driving the AF coil, a signal for driving the OIS coil, a signal for driving the AF position sensor and/or a signal for driving the OIS (Optical Image Stabilization) position sensor.

Furthermore, the controller <NUM> may receive the output from the AF position sensor and/or the output from the OIS position sensor. Furthermore, the controller <NUM> may provide the AF coil with a signal for AF feedback operation using the output from the AF position sensor, and may provide the OIS coil with a signal for OIS feedback operation using the output from the OIS position sensor of the lens moving unit <NUM>.

The connector <NUM> may be conductively connected to the board <NUM>, and may have a port that is intended to be conductively connected to an external device.

The lens moving unit <NUM> according to the embodiment may be included in an optical instrument, which is designed to form the image of an object in a space using reflection, refraction, absorption, interference, diffraction or the like, which are characteristics of light, to extend eyesight, to record an image obtained through a lens or to reproduce the image, to perform optical measurement, or to propagate or transmit an image. For example, although the optical instrument according to the embodiment may be a mobile phone, cellular phone, smart phone, portable smart instrument, digital camera, laptop computer, digital broadcasting terminal, PDA (Personal Digital Assistant), PMP (Portable Multimedia Player), navigation device, or the like, the disclosure is not limited thereto. Furthermore, any device capable of taking images or photographs is possible.

<FIG> is a perspective view illustrating a portable terminal 200A according to an embodiment. <FIG> is a view illustrating the configuration of the portable terminal illustrated in <FIG>.

Referring to <FIG> and <FIG>, the portable terminal 200A (hereinafter referred to as a "terminal") may include a body <NUM>, a wireless communication unit <NUM>, an audio/video (A/V) input unit <NUM>, a sensing unit <NUM>, an input/output unit <NUM>, a memory unit <NUM>, an interface unit <NUM>, a controller <NUM>, and a power supply unit <NUM>.

The body <NUM> illustrated in <FIG> has a bar shape, without being limited thereto, and may be any of various types, such as, for example, a slide type, a folder type, a swing type, or a swivel type, in which two or more sub-bodies are coupled so as to be movable relative to each other.

The body <NUM> may include a case (e.g. a casing, housing, or cover) defining the external appearance of the terminal. For example, the body <NUM> may be divided into a front case <NUM> and a rear case <NUM>. Various electronic components of the terminal may be accommodated in the space defined between the front case <NUM> and the rear case <NUM>.

The wireless communication unit <NUM> may include one or more modules, which enable wireless communication between the terminal 200A and a wireless communication system or between the terminal 200A and a network in which the terminal 200A is located. For example, the wireless communication unit <NUM> may include a broadcast-receiving module <NUM>, a mobile communication module <NUM>, a wireless Internet module <NUM>, a nearfield communication module <NUM>, and a location information module <NUM>.

The A/V input unit <NUM> serves to input audio signals or video signals, and may include, for example, a camera <NUM> and a microphone <NUM>.

The camera <NUM> may include the camera module <NUM> according to the embodiment illustrated in <FIG> or <FIG>. As described above, since the camera module <NUM> is capable of improving EMI-noise-blocking performance, it is possible to improve the RF (Radio Frequency) sensitivity of the portable terminal 200A.

The sensing unit <NUM> may sense the current state of the terminal 200A, such as, for example, the opening or closing of the terminal 200A, the location of the terminal 200A, the presence of a user's touch, the orientation of the terminal 200A, or the acceleration/deceleration of the terminal 200A, and may generate a sensing signal to control the operation of the terminal 200A. When the terminal 200A is, for example, a slide-type cellular phone, the sensing unit <NUM> may sense whether the slide-type cellular phone is opened or closed. Furthermore, the sensing unit <NUM> may sense the supply of power from the power supply unit <NUM>, coupling of the interface unit <NUM> to an external device, and the like.

The input/output unit <NUM> serves to generate, for example, visual, audible, or tactile input or output. The input/output unit <NUM> may generate input data to control the operation of the terminal 200A, and may display information processed in the terminal 200A.

The input/output unit <NUM> may include a keypad unit <NUM>, a display module <NUM>, a sound output module <NUM>, and a touchscreen panel <NUM>. The keypad unit <NUM> may generate input data in response to input on a keypad.

The display module <NUM> may include a plurality of pixels, the color of which varies depending on the electrical signals applied thereto. For example, the display module <NUM> may include at least one among a liquid crystal display, a thin-film transistor liquid crystal display, an organic light-emitting diode, a flexible display and a 3D display.

The sound output module <NUM> may output audio data received from the wireless communication unit <NUM> in, for example, a call-signal reception mode, a call mode, a recording mode, a voice recognition mode, or a broadcast reception mode, or may output audio data stored in the memory unit <NUM>.

The touchscreen panel <NUM> may convert variation in capacitance, caused by a user's touch on a specific region of a touchscreen, into electrical input signals.

The memory unit <NUM> may temporarily store programs for the processing and control of the controller <NUM>, and input/output data (for example, telephone numbers, messages, audio data, stationary images, moving images and the like). For example, the memory unit <NUM> may store images captured by the camera <NUM>, for example, pictures or moving images.

The interface unit <NUM> serves as a path through which the lens moving unit is connected to an external device connected to the terminal 200A. The interface unit <NUM> may receive power or data from the external component, and may transmit the same to respective constituent elements inside the terminal 200A, or may transmit data inside the terminal 200A to the external component. For example, the interface unit <NUM> may include a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port for connection to a device equipped with an identification module, an audio input/output (I/O) port, a video input/output (I/O) port, an earphone port and the like.

The controller <NUM> may control the general operation of the terminal 200A. For example, the controller <NUM> may perform control and processing related to, for example, voice calls, data communication, and video calls.

The controller <NUM> may include a multimedia module <NUM> for multimedia playback. The multimedia module <NUM> may be embodied in the controller <NUM>, or may be embodied separately from the controller <NUM>.

The controller <NUM> may perform a pattern recognition process capable of recognizing writing input or drawing input carried out on a touch screen as a character and an image, respectively.

The power supply unit <NUM> may supply power required to operate the respective constituent elements upon receiving external power or internal power under the control of the controller <NUM>.

The features, configurations, effects and the like described above in the embodiments are included in at least one embodiment, but the invention is not limited only to the embodiments. In addition, the features, configurations, effects and the like exemplified in the respective embodiments may be combined with other embodiments or modified by those skilled in the art. Accordingly, content related to these combinations and modifications should be construed as falling within the scope of the disclosure.

Claim 1:
A camera module(<NUM>) comprising:
a circuit board(<NUM>) comprising a first circuit board(<NUM>), a second circuit board(<NUM>) comprising a connector (<NUM>), and a connecting board(<NUM>) connecting the first circuit board(<NUM>) and the second circuit board(<NUM>);
a lens moving unit(<NUM>) disposed on the first circuit board(<NUM>); and
a noise-blocking unit(<NUM>) comprising a first noise-blocking portion(<NUM>) disposed beneath the second circuit board(<NUM>) and configured to block an electro-magnetic interference,
characterized in that the second circuit board(<NUM>) comprises a ground layer and a recess(<NUM>) exposing the ground layer, and the noise-blocking unit(<NUM>) is disposed in the recess(<NUM>) and is in contact with the ground layer, and
wherein a length (L3) of one side of the noise-blocking unit(<NUM>) is less than a length (L1) of one side of the recess(<NUM>) of the second circuit board(<NUM>) when viewed in a plan view.