KR20210156530A - A camera module and optical instrument including the same - Google Patents

Abstract

An embodiment includes a display panel including an active area and a camera module for receiving light passing through the active area. The camera module includes a lens fixed to be spaced apart from the display panel, an image sensor spaced apart from the lens, and a driving part for moving the image sensor in an optical axis direction.

Description

A camera module and an optical device including the same

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

Since it is difficult to apply the technology of a voice coil motor (VCM) used in an existing general camera module to a camera module for ultra-small size and low power consumption, research related thereto has been actively conducted.

In the case of a camera module mounted on a small electronic product such as a smartphone, the camera module may frequently be impacted during use, and the camera module may be slightly shaken according to a user's hand shake while shooting. In view of this point, a technique for additionally installing an anti-shake means to a camera module has recently been developed.

The embodiment provides a camera module and an optical device capable of smoothly performing an autofocusing operation without a lack of light under the condition of reducing the amount of light by the display module.

A mobile device according to an embodiment includes a display panel including an active area; and a camera module for receiving light passing through the active area, wherein the camera module includes: a lens fixed to be spaced apart from the display panel; an image sensor spaced apart from the lens; and a driving unit for moving the image sensor in an optical axis direction.

At least a portion of the lens may overlap the active area in the optical axis direction.

At least a portion of the lens may overlap the active area in a direction perpendicular to the display panel.

At least a portion of the lens may be disposed under the active area.

The active region may include a plurality of pixels, and at least a portion of the lens may overlap at least one of the plurality of pixels in the optical axis direction.

At least a portion of the image sensor may overlap the active area in the optical axis direction.

The active area may be a display area in which an image is displayed.

At least a portion of the image sensor may be disposed under the active area.

The image sensor and the active area may be disposed parallel to each other.

The display panel may include a non-view area disposed around the active area.

The lens may face the active area in the optical axis direction.

The mobile device includes a front surface including a view area visible to a user and displaying an image and a non-view area invisible to the user, and the lens is positioned on the view area in the optical axis direction. Opposite, at least a portion of the lens may overlap the viewing area.

An embodiment relates to a camera module for receiving light passing through an active area of a display panel, the camera module comprising: a lens fixed in an optical axis direction; an image sensor spaced apart from the lens; and a driving unit for moving the image sensor in the optical axis direction.

A camera module according to another embodiment includes a first circuit board; a housing disposed on the first circuit board; a lens barrel coupled to the housing and spaced apart from the first circuit board; a second circuit board disposed between the lens barrel and the first circuit board and spaced apart from the first circuit board; an image sensor disposed on the second circuit board; a holder coupled to the second circuit board; a coil disposed on one of the housing and the holder; and a magnet disposed on the other one of the housing and the holder, wherein the lens barrel is fixed and the image sensor is movable in an optical axis direction.

and a support member electrically connecting the first circuit board and the second circuit board.

The lens barrel may be fixed in the optical axis direction.

The lens barrel may be fixed in a direction perpendicular to the optical axis.

The camera module may include a filter coupled to the holder; and a support member electrically connecting the first circuit board and the second circuit board and supporting the image sensor so that the image sensor is movable.

The first circuit board and the image sensor may be moved in an optical axis direction by the interaction between the coil and the magnet.

The lens barrel may be fixedly disposed on the first circuit board at positions spaced apart by a predetermined distance in the optical axis direction.

The coil may face or overlap the magnet in the optical axis direction.

The coil may face or overlap the magnet in a direction perpendicular to the optical axis direction.

The camera module may include an elastic member coupled to the housing and the holder.

The camera module may include a position sensor disposed in any one of the housing and the holder in which the coil is disposed.

The magnet may be disposed on the holder, the coil may be disposed on the housing, and the camera module may include a position sensor disposed on the first circuit board to face or overlap the magnet in an optical axis direction. .

The camera module may include a sensing magnet disposed on the holder; and a position sensor that faces or overlaps the sensing magnet in the optical axis direction.

The camera module may include a filter disposed on the holder and positioned between the lens barrel and the image sensor.

In the embodiment, the autofocusing operation may be smoothly performed without insufficient light amount under the condition of reducing the amount of light by the display module.

1 is a schematic cross-sectional view of a camera module according to an embodiment.
FIG. 2 is a schematic plan view of a first circuit board, a second circuit board, an image sensor, a holder, a magnet, and a filter of FIG. 1 .
3A is a schematic conceptual diagram of a general camera module disposed below a display panel.
3B illustrates a camera module according to an embodiment disposed below the display panel.
4 is a schematic cross-sectional view of a camera module according to another embodiment.
5 is a schematic cross-sectional view of a camera module according to another embodiment.
6A is a schematic plan view of a first circuit board, a second circuit board, an image sensor, a holder, a filter, a coil, and a magnet of FIG. 5 .
6B is a modified embodiment of the coil of FIG. 6A.
7 is a schematic cross-sectional view of a camera module according to another embodiment.
8 is a schematic plan view of a first circuit board, a second circuit board, an image sensor, a holder, a filter, a coil, and a magnet of FIG. 7 .
9 is a schematic cross-sectional view of a camera module according to another embodiment.
10 is a schematic cross-sectional view of a camera module according to another embodiment.
11 is a schematic plan view of a first circuit board, a second circuit board, an image sensor, a holder, a filter, a coil, a magnet, and a position sensor of FIG. 10 .
12 is a schematic cross-sectional view of a camera module according to another embodiment.
13A is a schematic plan view of a first circuit board, a second circuit board, an image sensor, a holder, a filter, a coil, a magnet, a position sensor, and a sensing magnet of FIG. 12 .
13B shows an embodiment of the relative arrangement of the magnet, the sensing magnet, and the position sensor.
14 is a schematic cross-sectional view of a camera module according to another embodiment.
15A is a schematic cross-sectional view of a camera module according to another embodiment.
15B is a schematic cross-sectional view of a camera module according to another embodiment.
15C is a schematic cross-sectional view of a camera module according to another embodiment.
16 is a perspective view of a first circuit board, a second circuit board, and a support member of FIG. 1 according to an exemplary embodiment;
17 is an enlarged view of the support member of FIG. 16 ;
18 is a perspective view of a portable terminal according to an embodiment.
19 is a block diagram of the portable terminal shown in FIG. 18 .

Hereinafter, embodiments of the present invention that can specifically realize the above object will be described with reference to the accompanying drawings.

In the description of the embodiment, in the case where it is described as being formed on "on or under" of each element, the upper (upper) or lower (lower) (on or under) is The two elements are in direct contact with each other or one or more other elements are disposed between the two elements indirectly. In addition, when expressed as "up (up) or down (on or under)", it may include the meaning of not only an upward direction but also a downward direction based on one element.

In addition, as used hereinafter, relational terms such as “first” and “second”, “upper/upper/above” and “lower/lower/below” refer to any physical or logical relationship or order between such entities or elements. may be used only to distinguish one entity or element from another, without necessarily requiring or implying that Also, like reference numerals refer to like elements throughout the description of the drawings.

In addition, terms such as "include", "compose", or "have" described above mean that the corresponding component may be embedded unless otherwise stated, so other components are excluded. Rather, it should be construed as being able to include other components further. Also, terms such as “corresponding” described above may include at least one of “opposite” and “overlapping” meanings.

Hereinafter, a camera module according to an embodiment and an optical device including the same will be described with reference to the accompanying drawings. For convenience of description, the camera module according to the embodiment is described using a Cartesian coordinate system (x, y, z), but may be described using other coordinate systems, and the embodiment is not limited thereto. In each figure, the x-axis and y-axis mean a direction perpendicular to the z-axis, which is the optical axis (OA) direction, the z-axis direction, which is the optical axis (OA) direction, is referred to as a 'first direction', and the x-axis direction is referred to as a 'second direction'. direction', and the y-axis direction may be referred to as a 'third direction'.

The 'shake correction function' applied to the small camera module of a mobile device such as a smartphone or tablet PC moves the lens in the direction perpendicular to the optical axis direction to cancel the vibration (or movement) caused by the user's hand shake. It may be a function of tilting the lens based on .

In addition, the 'auto-focusing function' may be a function of automatically focusing on the subject by moving the lens in the optical axis direction according to the distance of the subject in order to obtain a clear image of the subject on the image sensor.

Hereinafter, the term "camera module" may be replaced with "camera device", "photographer", "camera device", "camera device", or "camera", and the term "coil" refers to a coil unit. Alternatively, it may be expressed by replacing the coil body, and the term "elastic member" may be expressed by replacing it with an elastic unit or a spring.

Also, in the following description, the term “terminal” may be replaced with a pad, an electrode, a conductive layer, or a bonding part.

1 is a schematic cross-sectional view of a camera module 200 - 1 according to an embodiment, and FIG. 2 is a first circuit board 800 , a second circuit board 805 , an image sensor 810 , and a holder of FIG. 1 . It is a schematic plan view of 600 , a magnet 130 , and a filter 610 , and FIG. 16 is a part of the first circuit board 800 , the second circuit board 805 , and the support member 220 of FIG. 1 . It is a perspective view according to an embodiment, and FIG. 17 is an enlarged view of the support member 200 of FIG. 16 .

1, 2, 16, and 17 , the camera module 200 - 1 includes a first circuit board 800 , a second circuit board 805 , an image sensor 810 , and a lens module 400 . ), a coil 120 , a magnet 130 , and a support member 220 .

The camera module 200 - 1 may further include at least one of a housing 140 , a holder 600 , and a filter 610 .

The second circuit board 805 is disposed on the first circuit board 800 and may be spaced apart from the first circuit board 800 .

The image sensor 810 may be disposed on the second circuit board 805 , and may be electrically connected to the second circuit board 805 through at least one wire 95 .

The housing 140 may be disposed on the first circuit board 800 . The housing 140 may accommodate the lens module 400 , and may be replaced with “lens holder”, “holder”, “cover” or “case”. 1, the housing 140 may be implemented as a single body, but is not limited thereto, and in another embodiment, the housing 140 may include two or more separated or divided housings (or holders). Also, the lens module 400 may be coupled to any one of the housings (or holders).

For example, the housing 140 may have an opening for mounting the lens barrel 410 . For example, the opening of the housing 140 may be in the form of a through hole or a hollow penetrating the housing 140 in the optical axis OA direction. The shape of the opening of the housing 140 may be the same or similar to that of the lens barrel 410 , for example, a circular shape, an oval shape, or a polygonal shape, but is not limited thereto.

For example, the housing 140 may include an upper plate 141 and a side plate 142 extending to the upper plate. The above-described opening of the housing 140 may be formed in the upper plate 141 .

The lens module 400 is disposed on the image sensor 810 and may be supported by the housing 140 . For example, the lens module 400 may be disposed in the housing 140 and may be coupled to the housing 140 .

The lens module 400 may be replaced with a “lens unit” or a “lens assembly”. The lens module 400 may include a lens barrel 410 coupled to the housing 140 , and a lens array 420 disposed in the lens barrel 410 . The lens array 420 may include at least one lens, and may be expressed as a “lens”.

The lens barrel 410 may have a cylindrical or polyhedral structure, and a cut surface in a direction perpendicular to the optical axis may be circular, oval, or polygonal, but is not limited thereto. For example, a screw thread or screw groove for coupling to the bobbin 110 may be formed on the outer surface of the lens barrel 410 , and a screw line or screw groove for coupling with the lens barrel may be formed on the housing 140 . In another embodiment, each screw thread or screw groove of the lens barrel and the housing may be omitted.

The coil 120 may be disposed in the housing 140 or the lens module 400 .

For example, the coil 120 may be coupled to the housing 140 or the lens barrel 410 .

For example, the housing 140 or the lens barrel 410 may include a groove for arranging or receiving the coil 120 .

The coil 120 may be disposed on the outer surface of the lens barrel 410 , and may be a driving coil that electromagnetically interacts with the magnet 130 .

A driving signal (eg, a driving current or voltage) may be applied to the coil 120 to generate an electromagnetic force by interaction with the magnet 130 . The driving signal applied to the coil 120 may be a DC signal and/or an AC signal.

The coil 120 may be electrically connected to the first circuit board 800 . For example, a driving signal may be provided to the coil 120 through the first circuit board 800 .

For example, a conductive layer, a conductor, or a circuit pattern for electrically connecting the coil 120 and the first circuit board 800 may be formed in the housing 140 . Alternatively, a separate circuit board for electrically connecting the coil 120 and the first circuit board 800 may be disposed in the housing 140 .

The AF movable unit may move in a first direction, for example, in an upward direction (+Z-axis direction) or a downward direction (-Z-axis direction) by electromagnetic force due to the interaction between the coil 120 and the magnet 130 .

The camera module 200 - 1 may be capable of both unidirectional driving and bidirectional driving for autofocusing. Here, unidirectional driving refers to movement of the AF movable unit in one direction, for example, in an upward direction (eg, upward direction (+Z-axis direction)) based on the initial position of the AF movable part, and bidirectional driving refers to moving the AF based on the initial position of the AF movable part. Refers to moving in both directions (eg, upward or downward).

By controlling the strength and/or polarity (eg, the direction in which current flows) of the driving signal applied to the coil 120 , the strength and/or direction of electromagnetic force caused by the interaction between the coil 120 and the magnet 130 is adjusted. , it is possible to control the movement of the AF moving part in the first direction, thereby performing an auto-focusing function.

The AF movable unit may include an image sensor 810 that is elastically supported by a supporting member 220 or/or an elastic member 150 to be described later. Also, the AF moving unit may include components that move together with the image sensor 810 .

The AF movable part may be expressed by replacing the "moving part".

For example, the AF moving unit may include a second circuit board 805 and an image sensor 810 . Alternatively, for example, the AF movable unit may further include a holder 600 and a magnet 130 .

For example, the coil 120 may be disposed in the lens barrel 410 to have a closed loop shape. For example, the coil 120 may have a closed loop shape wound in a clockwise or counterclockwise direction about the optical axis OA, and may be wound or disposed on the outer surface of the lens barrel 410 .

In another embodiment, the coil 120 may include at least one coil ring. For example, the coil 120 may include a plurality of coil units, and each of the plurality of coil units may be implemented in the form of a coil ring, and the number of coil rings may be the same as the number of magnets 130 , The present invention is not limited thereto.

The holder 600 may be in contact with, attached to, or fixed to the upper surface of the second circuit board 805 . The holder 600 may be expressed by replacing it with a sensor base.

The holder 600 may be disposed under the lens module 400 .

The holder 600 may include an opening corresponding to the image sensor 810 .

The opening of the holder 600 may pass through the holder 600 in the direction of the optical axis OA, and may be expressed by substituting a “hole” or a “through hole”.

For example, the opening of the holder 600 may pass through the center of the holder 600 , and may be disposed to correspond to or face the image sensor 810 (eg, an active area of the image sensor 810 ). .

The holder 600 is recessed from the upper surface and may include a seating part 500 for the filter 610 to be seated, and the filter 610 may be disposed in the seating part 500 . The seating part 500 may include a bottom surface and a side surface, and the opening of the holder 600 may be formed in the bottom surface of the seating part.

The filter 610 may be disposed in the holder 600 . The filter 610 may have a plate shape or a flat rectangular shape, but is not limited thereto.

The shape of the opening 501 of the holder 600 may match the shape of the filter 610 or may have a shape suitable for accommodating the filter 610 . For example, the shape of the opening 501 viewed from above may be a polygon (eg, a square), a circle, or an oval, but is not limited thereto.

Light passing through the lens module 400 may pass through the filter 610 to be incident on the image sensor 810 .

The filter 610 may serve to block light of a specific frequency band from the light passing through the lens module 400 from being incident on the image sensor 810 . For example, the filter 610 may be an infrared cut filter, but is not limited thereto, and in another embodiment, the filter may be an infrared pass filter. For example, the filter 610 may be disposed to be parallel to an x-y plane perpendicular to the optical axis OA.

A first adhesive member (not shown) may be disposed between the filter 610 and the holder 600 , and the first adhesive member may couple the filter 610 and the holder 600 to each other. In addition, a second adhesive member (not shown) may be disposed between the holder 600 and the second circuit board 805 , and the second adhesive member may bond the holder 600 and the second circuit board 805 to each other. can

A third adhesive member (not shown) may be disposed between the housing 140 and the first circuit board 800 , and the third adhesive member may couple the housing 140 and the first circuit board 800 to each other. have. For example, the first to third adhesive members may be an epoxy, a thermosetting adhesive, or an ultraviolet curable adhesive.

For example, each of the first circuit board 800 and the second circuit board 805 may be a printed circuit board (PCB). The first circuit board 800 and the second circuit board 805 may be electrically connected.

Each of the first and second circuit boards 800 and 805 may include at least one of a rigid printed circuit board and a flexible printed circuit board.

The image sensor 810 may include an active region (or an effective image region) in which light passing through the filter 610 is incident and an image included in the light is formed.

The optical axis of the image sensor 810 and the optical axis of the lens module 400 may be aligned. The image sensor 810 may convert light irradiated to the active region into an electrical signal and output the converted electrical signal.

For example, the filter 610 and the active region of the image sensor 810 may be spaced apart to face each other in the optical axis OA direction.

At least one circuit element (not shown) may be disposed or mounted on the first circuit board 800 . For example, at least one circuit element (not shown) may be electrically connected to the circuit board 800 , and may constitute a control unit that controls driving signals applied to the image sensor 810 and the coil 120 .

For example, the circuit element may include at least one of a capacitor, a memory, a controller, a sensor (eg, a motion sensor), or an integrated circuit (IC).

For example, the first circuit board 800 may be electrically connected to the coil 120 . For example, a driving signal may be provided to the coil 120 through the first circuit board 800 .

The camera module according to another embodiment may further include a blocking member 1300 disposed on the upper surface of the filter 610 . The blocking member 1300 may be expressed by replacing it with a “masking unit”.

For example, the blocking member 1300 may be disposed on the edge region of the upper surface of the filter 610, and at least a portion of the light passing through the lens module 400 and incident toward the edge region of the filter 610 is 610) may serve to block the passage. For example, the blocking member 1300 may be coupled or attached to the upper surface of the filter 610 by an adhesive member.

For example, the filter 610 may have a rectangular shape when viewed from above, and the blocking member 1300 may be formed symmetrically with respect to the filter 610 along each side of the upper surface of the filter 610 . For example, the blocking member 1300 may be formed to have a constant width at each side of the upper surface of the filter 610 . For example, the blocking member 1300 may be formed of an opaque material. For example, the blocking member 1300 may be provided in the form of an opaque adhesive material applied to the filter 610 or in the form of a film attached to the filter 610 .

The active area of the filter 610 and the image sensor 810 may be disposed to face or overlap each other in the optical axis direction, and the blocking member 1300 may not overlap the active area of the image sensor 810 in the optical axis direction. . In addition, the blocking member 1300 may at least partially overlap the terminal and/or the wire 95 of the second circuit board 805 in the optical axis direction.

Since the blocking member 1300 is disposed to overlap at least a portion of the terminal and/or the wire 95 of the second circuit board 805 in the optical axis direction, among the light passing through the lens module 400 , the second circuit board It is possible to prevent the occurrence of a flare phenomenon by blocking the light directed to the terminal of the 805 and / and the wire, thereby preventing the image formed on the image sensor 810 from being distorted or the image quality from being deteriorated. have.

In another embodiment, the blocking member 1300 may be omitted. In another embodiment, both the filter 610 and the blocking member 1300 may be omitted.

The magnet 130 may be disposed on the holder 600 .

For example, the magnet 130 may be disposed or arranged to correspond to or face the coil 120 in the optical axis OA direction or in a direction parallel to the optical axis.

For example, the magnet 130 may be a unipolar magnetizing magnet including one N pole and one S pole or a bipolar magnetizing magnet including two N poles and two S poles.

The magnet 130 may include one or more magnet units. The holder 600 may be provided with a receiving portion for placing the magnet 130 , and in this case, the receiving portion may be in the form of a groove or a hole.

1 , the magnet 130 may be disposed on the upper surface of the holder 600 . This may be to improve the electromagnetic force by reducing the separation distance from the coil 120 . In another embodiment, the magnet 130 may be disposed on the side or the lower surface of the holder 600 .

The support member 220 may elastically support the second circuit board 805 .

For example, the support member 220 may support the second circuit board 805 so that the second circuit board 805 is movable in the optical axis direction, and the first circuit board 800 and the second circuit board 805 . can be electrically connected.

For example, one end of the support member 220 may be coupled to the first circuit board 800 by solder, and the other end of the support member 220 may be coupled to the second circuit board 805 .

The support member 220 is conductive and may be implemented as a member that can be supported by elasticity, for example, a suspension wire, a leaf spring, or a coil spring.

Also, in another embodiment, the support member may be integrally formed with the first circuit board 800 . In another embodiment, the support member may be integrally formed with the second circuit board 805 .

2 , the support member 220 may include a plurality of support members, and the plurality of support members may support the second circuit board 805 , and include the first circuit board 805 and The second circuit board 810 may be electrically connected. A driving signal applied to the coil 120 through the support member 220 may be transmitted from the first circuit board 800 to the second circuit board 805 .

16 and 17 , the first circuit board 800 may include a plurality of through holes 27A spaced apart from each other.

The support member 220 may include a plurality of support members. Each of the plurality of support members may include a first elastic member 281 and a second elastic member 282 .

The first elastic member 281 may pass through a corresponding one of the plurality of through-holes of the first circuit board 800 , and one end of the first elastic member 281 is the lower surface of the first circuit board 800 . can be coupled to For example, one end of the first elastic member 281 may be coupled to a terminal provided on the lower surface of the first circuit board 800 by solder, and both may be electrically connected.

The second elastic member 282 may be coupled to the first elastic member 281 . For example, one end of the second elastic member 282 may be coupled to the other end of the first elastic member 281 , and the other end of the second elastic member 282 may be coupled to the second circuit board 805 .

For example, the other end of the second elastic member 282 may be coupled to the terminal 44A formed on the upper surface of the second circuit board 805 , and both may be electrically connected.

The second elastic member 282 includes a first coupling part 31 coupled to the terminal 44A of the second circuit board 805 and a second coupling part 32 coupled to the other end of the first elastic member 281 . , and a connection part 33 connecting the first coupling part 31 and the second coupling part 32 .

For example, the first coupling part 31 may be disposed on the upper surface of the second circuit board 805 , and may be coupled to the terminal 44A of the second circuit board 805 by solder or a conductive adhesive member.

The second coupling part 32 may be coupled to the other end of the first elastic member 281 by solder or a conductive adhesive member.

The second coupling part 32 may include a hole 32A through which the other end of the first elastic member 281 passes.

The other end of the first elastic member 281 passing through the hole 32A of the second coupling part 32 may be directly coupled to the second coupling part 32 by a conductive adhesive member or solder, and the second coupling part 32 and the first elastic member 281 may be electrically connected.

For example, the second coupling part 32 is a region where solder is disposed for coupling with the first elastic member 281 , and may include a hole 32A and a region around the hole 32A, in FIG. 17 . The second coupling portion 32 has a circular shape, but is not limited thereto, and in another embodiment, may be a polygon (eg, a square) or an oval.

For example, the diameter K of the second coupling part 32 may be larger than the width W1 of the first coupling part 31, but is not limited thereto, and in another embodiment, the The diameter K may be the same as or smaller than the width of the first coupling part 31 .

The connection part 33 connects the first coupling part 31 and the second coupling part 32 to each other, and may include at least one straight part and at least one curved part.

For example, the curved portion may have a shape perpendicular to the optical axis from the straight portion and curved in the right or left direction.

For example, the connection part 33 may include a spiral shape, but is not limited thereto.

For example, the connection part 33 includes a first straight part 33-1 coupled to the first coupling part 31, and a first curved part 34- that is bent in the first direction from the first straight part 33-1. 1), a second straight part 33-2 connected to the first curved part 34-1, and a third curved part 34-2 bent in the second direction from the second straight part 33-2 , the third straight part 33-3 connected to the third curved part 34-2, the third curved part 34-3 bent in the third direction from the third straight part 33-3, the third 3 The fourth straight part 33-4 connected to the curved part 34-3, the fourth curved part 34-4 bent in the fourth direction from the fourth straight part 33-4, and a fourth A fifth straight line portion 33 - 5 connecting the curved portion 34 - 4 and the second coupling portion 32 may be included. For example, each of the first to fourth side directions may be a left direction, but is not limited thereto, and at least one of the first to fourth side directions may be a right direction.

The width W2 of the connection part 33 may be smaller than the width W1 of the first coupling part 31 and the diameter K of the second coupling part 32 (W2<W1, W2<K). Accordingly, the second elastic member 282 can elastically support the AF movable part, and can facilitate movement of the AF movable part in the optical axis direction.

In another embodiment, the width of the connection part 33 may be the same as or greater than the diameter of the second coupling part 32 .

The thickness t1 of the first coupling part 31 , the thickness t2 of the connection part 32 , and the thickness of the second coupling part 32 may be the same as each other. In another embodiment, at least one of the thickness t1 of the first coupling part 31 , the thickness t2 of the connection part 32 , and the thickness of the second coupling part 32 may be different from the others. For example, the thickness t2 of the connection part 32 may be smaller than the thickness of the first coupling part 31 and the thickness of the second coupling part 32 .

16 and 17 , the second elastic member 282 is connected to the upper end of the first elastic member 281 and is coupled to the second circuit board 805 , but is not limited thereto. In another embodiment, one end (top) of the first elastic member may be directly connected to the second circuit board 805 by solder, and the second elastic member may connect the lower end of the first elastic member and the first circuit board 800 . You can also connect For example, the second coupling part of the second elastic member may be coupled to the lower end of the first elastic member 281 , and the first coupling part of the second elastic member may be coupled to the terminal of the first circuit board 800 .

In another embodiment, the support member includes a first elastic member 281 , a second elastic member connected to an upper end of the first elastic member 281 , and a third elastic member connected to a lower end of the first elastic member 281 . may include In this case, the description of the second elastic member 282 of FIG. 17 may be applied or analogously applied to each of the second and third elastic members. That is, one end (or upper end) of the first elastic member 281 may be coupled to the second coupling part 32 of the second elastic member, and the first coupling part 31 of the second elastic member may be a second circuit board. It may be coupled with the terminal 44A of 805 . Also, the other end (or lower end) of the first elastic member 281 may be coupled to the second coupling part 32 of the third elastic member, and the first coupling part 31 of the third elastic member may be connected to the first circuit board. It may be combined with the terminal of 800 .

In an embodiment, the lens module 400 is fixed to the housing 140 , and the lens module 400 may not move in the optical axis direction. That is, the lens module 400 constitutes a fixed part together with the housing 140 . On the other hand, in the embodiment, the second circuit board 805 and the image sensor 810 may be moved in the optical axis direction due to the interaction between the magnet 130 and the coil 120 to which the driving signal is provided. That is, the second circuit board 805 and the image sensor 810 constitute a movable part. That is, in the embodiment, by controlling the displacement of the image sensor 810 in the optical axis OA direction, AF driving may be implemented.

The size of the display module of the portable terminal on which the camera module is mounted is gradually increasing. As a method for increasing the size of the display module of the portable terminal and realizing a thin bezel, a camera module (hereinafter, hereinafter) may be disposed on the lower or lower side of the display.

In the case of a camera module (“under display camera module”) on the lower surface or lower side of the display module, the light transmittance of the display module becomes a very important factor in AF driving. This is because the amount of light incident on the camera module decreases as the light passes through the display module.

In a general camera module in which an image sensor is fixed and an autofocusing operation is performed by moving a lens module in an optical axis direction, the distance between the lens module and the display module may be changed by the autofocusing operation.

3A is a schematic conceptual diagram of a camera module 10 according to a comparative example disposed below a display panel, and FIG. 3B shows a camera module 200-1 according to an embodiment disposed below the display panel.

Referring to FIG. 3A , the camera module 10 includes a circuit board 80 , an image sensor 81 disposed on the circuit board 80 , and a lens driver 40 disposed on the image sensor 81 . can do. The lens driver 40 may be disposed between the lower surface (or rear surface) of the display panel 751 and the image sensor 81 .

The lens driving unit 40 may include a lens module and a driving unit for moving the lens module in the optical axis direction. As the lens module of the lens driving unit 40 moves in the optical axis direction, the distances d1 and d2 between the lens module (or lens) of the lens driving unit 40 and the front (or rear) of the display panel 751 may be changed. have.

As d1 (or d2) increases, the amount of light incident to the lens module of the lens driving unit 40 may decrease. Also, in FIG. 3A , as the lens module moves in the optical axis direction, a change in the amount of light incident to the lens module may be significant.

In the camera module of FIG. 3A , in the condition in which the amount of light is reduced by the display module, as d1 (or d2) increases, the amount of light incident to the lens module of the lens driver 40 further decreases, so that normal AF driving can be performed. Otherwise, the image generated by the image sensor 81 may be dark, and the resolution of the image sensor 81 may be reduced.

In particular, when the lens driver 40 moves away from the display panel 751 at the maximum during AF driving, the amount of light incident on the image sensor 81 may be remarkably reduced.

Referring to FIG. 3B , in the embodiment, the lens module 400 is fixed without moving in the optical axis direction. For example, the lens barrel 410 may be disposed to be fixedly spaced apart from the first circuit board 800 by a predetermined distance D3 in the optical axis OA direction.

For example, the lens barrel 410 may be fixed in the optical axis direction, which may mean that the lens barrel 410 does not move or does not move in the optical axis direction.

Also, for example, the lens barrel 410 may be fixed in a direction perpendicular to the optical axis, which may mean that the lens barrel 410 does not move or does not move in a direction perpendicular to the optical axis.

The distance D1 in the optical axis direction between the front surface 7A of the portable terminal 200A and the lens module 400 may be a preset distance, and is not changed by the AF driving of the camera modules 200-1 to 200-9. and can be constant. In addition, the distance D2 in the optical axis direction between the rear surface 7B of the display panel 751 and the lens module 400 may be a preset distance, and may be used for AF driving of the camera modules 200-1 to 200-9. can be constant without changing by

For example, the front surface 7A of the portable terminal 200A may be the front surface of the display module. For example, in a built-in type in which the display module and the touch screen module are integrated, the front surface 7A of the portable terminal 200A may be the front surface of the display module.

Alternatively, for example, in an external type in which the display module and the touch screen module are separated, the front surface 7A of the portable terminal 200A may be the front surface of the touch screen module.

Alternatively, for example, the lens module 400 may be in contact with the rear surface 7B of the display panel 751 , and D1 may be zero. In this case, the rear surface of the display panel 751 may be the rear surface of a component (eg, glass) closest to the camera module among components constituting the general display panel 751 .

Even under the condition that the amount of light is reduced by the display panel 751 , since the distance D1 is constant, the amount of light flowing into the lens module 400 may be uniform. Therefore, according to the embodiment, the lens module may receive sufficient amount of light for AF driving, and thus AF driving may be smoothly performed even under a condition in which the amount of light due to the display panel 751 is reduced.

Since the image sensor 810 is moved in the optical axis direction to perform auto-focusing, the lens module 400 having a large-diameter lens may be provided in the embodiment, thereby increasing the resolution of the camera module.

4 is a schematic cross-sectional view of a camera module 200 - 2 according to another exemplary embodiment.

4 is a modified example of the camera module of FIG. 1 . In FIG. 4 , the same reference numerals as in FIG. 1 indicate the same configuration, and the description of the same configuration is omitted or simplified.

In FIG. 4 , the magnet 130A is disposed on the housing 140 , and the coil 120A is disposed on the holder 600 . A groove for arranging the magnet 130A may be provided in the housing 140 of FIG. 4 , and a groove for arranging the coil 120A may be provided in the holder 600 of FIG. 4 .

That is, in FIG. 4 , the magnet 130A is fixed to the housing 140 and cannot be moved, and the coil 120A moves along with the circuit board 805 , the image sensor 810 , and the holder 600 in the optical axis direction. can be

The coil 120A may be coupled to the holder 600 . For example, the coil 120A may be disposed on the upper surface of the holder 600 , but is not limited thereto.

For example, the coil 120A may be disposed in the holder 600 to have a closed loop shape. For example, the coil 120A may have a closed loop shape wound around the optical axis OA in a clockwise or counterclockwise direction, and may be wound or disposed on the holder 600 .

In another embodiment, the coil may include at least one coil ring. For example, the coil may include a plurality of coil units, each of the plurality of coil units may be implemented in the form of a coil ring, and the number of coil rings may be the same as the number of magnets 130A, but is limited thereto. it is not

The magnet 130A may face or overlap the coil 120 in the optical axis direction.

The coil 120A disposed on the holder 600 may be electrically connected to the second circuit board 805 . The coil 120A of FIG. 4 may be electrically connected to the first circuit board 810 through the second circuit board 805 and the support member 220 .

For example, a conductive layer, a conductor, or a circuit pattern for electrically connecting the coil 120A and the second circuit board 805 may be formed in the holder 600 of FIG. 4 . Alternatively, a separate circuit board for electrically connecting the coil 120A and the second circuit board 805 may be disposed in the holder 600 of FIG. 4 .

In another embodiment, the coil 120A may be disposed on the second circuit board 805 and may be directly connected to the second circuit board 805 .

5 is a schematic cross-sectional view of a camera module 200 - 3 according to another embodiment, and FIG. 6A is the first circuit board 800 , the second circuit board 805 , and the image sensor 810 of FIG. 5 . , a schematic plan view of the holder 600 , the filter 610 , the coil 120B, and the magnet 130B.

The camera module 200-3 is a modified example of the camera module 200-1 of FIG. 1 , wherein the coil 120B may be disposed on the side plate 142 of the housing 140, and the magnet 130B is a holder ( 130B).

For example, the coil 120B and the magnet 130B may face or overlap each other in a direction perpendicular to the optical axis OA and parallel to a straight line passing through the optical axis.

Since the coil 120B has only a different arrangement position from the coil 120 of FIG. 1 in the housing 140 , the coil 120 and related descriptions may be applied or analogously applied to the coil 120B.

The magnet 130B may include a plurality of magnets 130 - 1 to 130 - 4 spaced apart from each other in the holder 600 .

Each of the plurality of magnets 130 - 1 to 130 - 4 may be disposed on a corresponding one of the sides of the holder 600 .

6B is a modified embodiment 120C of the coil 120B of FIG. 6A .

The coil 120B of FIG. 6A has a single closed curve shape, for example, a ring shape. However, the coil 120C of FIG. 6B may include a plurality of coil units 120-1 to 120-4 corresponding to the plurality of magnets 130-1 to 130-4. For example, the plurality of coil units 120 - 1 to 120 - 4 may be serially connected to each other, and one driving signal may be provided.

The length of the coil unit (eg, 120-1) in the horizontal direction (eg, the X-axis direction) may be greater than the length of the corresponding magnet 130-1 in the horizontal direction, but is not limited thereto. The transverse length of the coil unit (eg, 120 - 1 ) may be less than or equal to the transverse length of the corresponding magnet 130 - 1 .

The length of the coil unit (eg, 120-1) in the vertical direction (eg, the Y-axis direction) may be greater than the length of the corresponding magnet 130-1 in the vertical direction, but is not limited thereto. The length in the longitudinal direction of the coil unit (eg, 120 - 1 ) may be less than or equal to the length in the longitudinal direction of the corresponding magnet 130 - 1 .

The length of the coil unit (eg, 120-1) in the optical axis direction (eg, Z-axis direction) may be greater than the length of the corresponding magnet 130-1 in the optical axis direction, but is not limited thereto. The length in the optical axis direction of the coil unit (eg, 120-1) may be less than or equal to the length in the optical axis direction of the corresponding magnet 130-1.

7 is a schematic cross-sectional view of a camera module 200 - 4 according to another embodiment, and FIG. 8 is the first circuit board 800 , the second circuit board 805 , and the image sensor 810 of FIG. 7 . , a schematic plan view of the holder 600 , the filter 610 , the coil 120B, and the magnet 130B.

The camera module 200 - 4 of FIGS. 7 and 8 may be a modified example of FIG. 5 , and in FIGS. 7 and 8 , the same reference numerals as in FIG. 5 indicate the same configuration, and the description of the same configuration is omitted or simplified. do.

7 and 8 , the magnet 130C may be disposed on the side plate 142 of the housing 140 , and the coil 120D may be disposed on the side surface of the holder 600 . A groove for arranging the magnet 130A may be provided in the side plate 142 of the housing 140 of FIG. 7 , and a groove for arranging the coil 120D may be provided on the side surface of the holder 600 of FIG. 7 . can

The magnet 130C may face or overlap the coil 120D in a direction perpendicular to the optical axis OA and parallel to a straight line passing through the optical axis OA.

7 and 8 , the magnet 130C is fixed to the housing 140 and may not be moved, and the coil 120D is in the optical axis direction together with the circuit board 805 , the image sensor 810 , and the holder 600 . can be moved to

The coil 120D may be coupled to the holder 600 . For example, the coil 120D may be disposed on the side of the holder 600 , but is not limited thereto.

For example, the coil 120D may be disposed on a side surface of the holder 600 to have a closed loop shape. For example, the coil 120D may have a closed loop shape wound in a clockwise or counterclockwise direction about the optical axis OA, and may be wound or disposed on a side surface of the holder 600 .

In another embodiment, the coil may include at least one coil ring. For example, the coil may include a plurality of coil units, each of the plurality of coil units may be implemented in the form of a coil ring, and the number of coil rings may be the same as the number of magnets 130C, but is limited thereto. it is not

The magnet 130C may face or overlap the coil 120D in the optical axis direction. For example, the magnet 130C may include a plurality of magnets 130 - 1A to 130 - 4A spaced apart from each other on the side plate 142 of the housing 140 . Each of the plurality of magnets 130 - 1A to 130 - 4A may be disposed on a corresponding one of the sides of the housing 140 .

The coil 120D disposed on the holder 600 may be electrically connected to the second circuit board 805 . The coil 120D of FIG. 7 may be electrically connected to the first circuit board 810 through the second circuit board 805 and the support member 220 .

For example, a conductive layer, a conductor, or a circuit pattern for electrically connecting the coil 120D and the second circuit board 805 may be formed in the holder 600 of FIG. 7 . Alternatively, a separate circuit board for electrically connecting the coil 120D and the second circuit board 805 may be disposed in the holder 600 of FIG. 7 .

In another embodiment, the coil 120D may be disposed on the second circuit board 805 , and may be electrically and physically directly connected to the second circuit board 805 .

9 is a schematic cross-sectional view of a camera module 200 - 5 according to another embodiment. Referring to FIG. 9 , the camera module 200 - 5 may further include an elastic member 150 coupled to the housing 140 and the holder 600 .

One end of the elastic member 150 may be coupled to the housing 140 , and the other end of the elastic member 150 may be coupled to the holder 600 . In FIG. 9 , one end of the elastic member 150 is coupled to the side plate 142 of the housing 140 , and the other end of the elastic member 150 is coupled to the upper surface of the holder 600 , but is not limited thereto.

In another embodiment, one end of the elastic member 150 may be coupled to the upper plate 141 or the side plate 142 of the housing 140 . In addition, the other end of the elastic member 150 may be coupled to the upper surface, the side surface, or the lower surface of the holder 600 , or may be coupled to the second circuit board 805 .

The elastic member 150 may elastically support the holder 600 and the second circuit board 805 with respect to the housing 140 . The second circuit board 805 may be spaced apart from the first circuit board 800 by at least one of the elastic member 150 and the support member 220 .

For example, the elastic member 150 may include a first coupling part coupled to the holder 600 , a second coupling part coupled to the housing 140 , and a connection part connecting the first coupling part and the second coupling part. . The first coupling portion of the elastic member 150 may be expressed by replacing the “first frame” or “inner portion”, and the second coupling portion may be expressed by replacing the “second frame” or “outer portion”. In this case, the connection part may be bent or curved (or curved) at least once to form a pattern of a predetermined shape.

Also, the elastic member 150 may include a plurality of elastic units spaced apart from each other. For example, the elastic member 150 may be implemented as a leaf spring, but is not limited thereto, and may be implemented as a coil spring, a suspension wire, or the like.

The elastic member 150 may be applied or analogically applied to the camera modules 200-1 to 200-4 according to the above-described embodiment.

10 is a schematic cross-sectional view of a camera module 200 - 6 according to another embodiment, and FIG. 11 is the first circuit board 800 , the second circuit board 805 , and the image sensor 810 of FIG. 10 . , a schematic plan view of a holder 600 , a filter 610 , a coil 120D, a magnet 130C, and a position sensor 170 .

10 and 11 , the camera module 200 - 6 may further include a position sensor 170 . The position sensor 170 may be disposed on the holder 600 .

The position sensor 170 disposed in the holder 600 may be moved in the optical axis direction by electromagnetic force due to the interaction between the coil 120D and the magnet 130C, and the position sensor 170 may have a magnetic field of the magnet 130C. can detect the strength of , and output an output signal according to the sensed result.

For example, the position sensor 170 may be implemented in the form of a Hall sensor or a driver IC including a Hall sensor.

The position sensor 170 may be electrically connected to the second circuit board 805 . Also, the position sensor 170 may be electrically connected to the first circuit board 800 .

For example, the position sensor 170 may be electrically connected to the first circuit board 800 through the second circuit board 805 and the support member 220 . A driving signal may be provided to the position sensor 170 from the first circuit board 800 , and an output of the position sensor 170 may be transmitted to the first circuit board 800 .

When the position sensor 170 is implemented as a hall sensor alone, the position sensor 170 may include two input terminals for inputting a driving signal and two output terminals for outputting an output signal, and two The input terminals and the two output terminals may be electrically connected to the second circuit board 805 and the first circuit board 800 .

When the position sensor 170 is implemented as a driver IC, the position sensor 170 uses first and second terminals for receiving a driving signal and data communication using a protocol, for example, using I2C communication. It may include third and fourth terminals for transmitting and receiving a clock signal and a data signal related to the output of the Hall sensor. In this case, the first to fourth terminals of the position sensor 170 may be electrically connected to the first and second circuit boards 805 and 800 . Also, in this case, the position sensor 170 may be electrically connected to the coil 120D, and may directly provide a driving signal to the coil 120D.

In the initial position of the AF movable part, at least a portion of the position sensor 170 in the horizontal direction may overlap the magnet 130C, but is not limited thereto, and in another embodiment, the position sensor 170 and the magnet ( 130C) may not overlap each other. The horizontal direction may be a direction perpendicular to the optical axis OA or a direction perpendicular to the optical axis OA and parallel to a straight line passing through the optical axis OA.

At least a portion of the position sensor 170 in the vertical direction may overlap the coil 120D, but is not limited thereto. In another embodiment, the position sensor 170 in the vertical direction may not overlap the coil 120D. have. The vertical direction may be a direction of the optical axis OA or a direction parallel to the optical axis OA.

For example, the position sensor 170 may be directly disposed or mounted on the second circuit board 805 to be directly electrically connected to the second circuit board 805 .

In another embodiment, a conductive layer, a conductor, or a circuit pattern for electrically connecting the position sensor 170 and the second circuit board 805 may be formed on the holder 600 . Alternatively, a separate circuit board for electrically connecting the position sensor 170 and the second circuit board 805 may be disposed in the holder 600 .

In FIG. 10 , the position sensor 170 and the coil 120D are disposed on the holder 600 , and the magnet 130C is disposed on the housing 140 , but is not limited thereto.

In the above-described embodiments 200-1 and 200-3 in which the coils 120 and 120B are disposed in the housing 140 and the magnets 130 and 130B are disposed in the holder 600, the position sensor is the housing 140 can be placed in At this time, the position sensor may be electrically connected to the first circuit board 800 , and detects the strength of the magnetic field of the magnets 130 and 130B moving in the optical axis direction together with the holder 600 , and an output signal according to the sensed result can be printed out.

Also, for example, a conductive layer, a conductor, or a circuit pattern for electrically connecting the position sensor and the first circuit board 800 may be formed in the housing 140 . Alternatively, a separate circuit board for electrically connecting the position sensor and the first circuit board 800 may be disposed in the housing 140 .

That is, in FIG. 10 , the position sensor 170 applied to the embodiment 200-4 of FIG. 7 is shown, but the present invention is not limited thereto, and the position sensor is used in other embodiments 200-1 to 200-3 and 200-5. It can also be applied or applied by analogy. In the embodiments 200-1 to 200-6, the position sensor may correspond to or face the magnet in a vertical direction or a horizontal direction.

12 is a schematic cross-sectional view of a camera module 200 - 7 according to another embodiment, and FIG. 13A is the first circuit board 800 , the second circuit board 805 , and the image sensor 810 of FIG. 12 . , the holder 600, the filter 610, the coil 120D, the magnet 130C, the position sensor 170, and a schematic plan view of the sensing magnet 180, Figure 13b is a magnet (130C) and the sensing magnet ( 180), and an embodiment of the relative arrangement of the position sensor.

12, 13A, and 13B , the camera module 200 - 7 may further include a sensing magnet 180 . The sensing magnet 180 may be spaced apart from the magnet 140 and disposed in the housing 140 . For example, the sensing magnet 180 may be a unipolar magnetizing magnet including one N pole and one S pole or a bipolar magnetizing magnet including two N poles and two S poles.

In another embodiment, the sensing magnet 180 may be disposed on the holder 600 , and the position sensor 170 may be disposed on the housing 140 .

In at least a portion of the sensing magnet 180 in a direction perpendicular to the optical axis, the position sensor 170 may overlap, but the present invention is not limited thereto, and in another embodiment, both may not overlap in a direction perpendicular to the optical axis.

In the optical axis direction, the coil 120D and the sensing magnet 180 may overlap, but is not limited thereto, and in another embodiment, the coil 120D and the sensing magnet 180 may not overlap each other in the optical axis direction.

In a direction perpendicular to the optical axis, the coil 120D and the sensing magnet 180 may not overlap, but is not limited thereto, and in another embodiment, at least a portion of the sensing magnet 180 in a direction perpendicular to the optical axis is a coil ( 120D) and may overlap.

The position sensor 170 may be moved in the optical axis direction OA together with the holder 600 by electromagnetic force due to the interaction between the coil 120D and the magnet 130C, and the position sensor 170 may have the sensing magnet 180 . ) can sense the strength of the magnetic field, and output an output signal according to the sensed result. For example, the position sensor 170 may sense the strength of the magnetic field of the magnet 130C and the strength of the magnetic field of the sensing magnet 180 , and may output an output signal according to the sensed result.

At least a portion of the position sensor 170 may face or overlap the sensing magnet 180 in a vertical direction, but is not limited thereto. In another embodiment, the position sensor may not overlap the sensing magnet in the vertical direction.

As shown in FIG. 13B , the magnet 130C may not overlap the sensing magnet 180 in a direction perpendicular to the optical axis. Also, in the optical axis direction, the magnet 130C may not overlap the sensing magnet 180 . In another embodiment, the magnet may overlap the sensing magnet in a direction perpendicular to the optical axis. In another embodiment, the magnet may overlap the sensing magnet in the optical axis direction.

12 and 13A illustrate the sensing magnet 180 applied to the embodiment 200-4 of FIGS. 7 and 8 , the embodiment is not limited thereto, and the sensing magnet is used in other embodiments 200-1 to 200 -3, 200-5) or can be applied by analogy. For example, in the embodiments 200 - 1 and 200 - 3 , the sensing magnet may be disposed on the holder 600 . In addition, in the embodiments 200-1 to 200-6, at least a portion of the position sensor may face or overlap the sensing magnet in a vertical or horizontal direction, but is not limited thereto, and in other embodiments, both of the position sensors are vertically oriented Alternatively, they may not overlap in the horizontal direction.

14 is a schematic cross-sectional view of a camera module 200 - 8 according to another embodiment.

Referring to FIG. 14 , when the magnet 130B is disposed on the holder 600 and the coil 120B is disposed on the housing 140 , the position sensor 170 may be disposed on the first circuit board 800 . have.

For example, at least a portion of the position sensor 170 may face or overlap the magnet 130B in the vertical direction, but is not limited thereto, and in another embodiment, both may not face or overlap each other in the vertical direction. In this case, the position sensor 170 may be mounted on the first circuit board 800 , and may be directly electrically connected to the first circuit board 800 .

15A is a schematic cross-sectional view of a camera module 200 - 9 according to another embodiment.

Referring to FIG. 15A , in the camera module 200 - 9 , the sensing magnet 180 may be disposed on the holder 600 , and the position sensor 170 may be disposed on the first circuit board 800 .

At least a portion of the position sensor 170 in the vertical direction may face or overlap the sensing magnet 180, but is not limited thereto, and in another embodiment, both may face or overlap each other in the vertical direction.

In another embodiment, the position sensor may be disposed on the holder 600 , and the sensing magnet may be disposed on the first circuit board 800 .

15B is a schematic cross-sectional view of a camera module 200 - 10 according to another embodiment. Referring to FIG. 15B , the coil 120 - 1 may be disposed on the upper surface of the second circuit board 805 . For example, the coil 120 - 1 may be disposed on the upper surface of the second circuit board 805 in the form of a coil unit. The coil 120 - 1 may be coupled to the second circuit board 805 . Also, the coil 120 - 1 may be electrically connected to the second circuit board 805 .

Alternatively, in another embodiment, the coil 120 - 1 may be formed in the second circuit board 805 in the form of a circuit pattern or wiring.

For example, the coil 120 - 1 may be disposed on an area of the upper surface of the second circuit board 805 adjacent to the holder 600 - 1 . The coil 120-1 may be disposed in contact with the holder 600-1, but is not limited thereto. In another embodiment, the coil 120-1 may be disposed to be spaced apart from the holder 600-1.

In another embodiment, the magnet 130 may be disposed on the upper surface of the second circuit board 805 , and the coil may be disposed on the housing 140 .

15C is a schematic cross-sectional view of a camera module 200 - 10 according to another embodiment.

Referring to FIG. 15C , the holder 600 - 2 may be spaced apart from the moving part and fixed to the fixed part.

For example, the holder 600 - 2 may be fixed to the lens barrel 410 or the housing 140 .

For example, an upper surface, an upper end, or an upper portion of the holder 600 - 2 may be coupled to or attached to the lens barrel 410 or the housing 140 . The filter 610 may be disposed in the holder 600 - 2 .

In FIG. 15C , the holder 600 - 2 and the filter 610 may be included in the fixed part, and even if the moving part (eg, the image sensor 810 ) moves in the optical axis direction, the holder 600 - 2 and the filter 610 . is not moved together with the moving part, but may be fixed in the optical axis direction or in a direction perpendicular to the optical axis.

The position sensor 170 shown in FIG. 14 may be applied or analogically applied to other embodiments of FIGS. 1 to 13 and FIGS. 15A to 15C .

The sensing magnet 180 disposed on the holder 600 shown in FIG. 15A and the position sensor 170 disposed on the first circuit board 800 are shown in other embodiments of FIGS. 1 to 14 and 15A to 15C . It can also be applied or applied by analogy.

The descriptions of the holders 600 - 1 and 600 - 2 , the coil 120 - 1 , and the filter 610 described in FIGS. 15B and 15C may be applied to other embodiments of FIGS. 1 to 14 , or analogously applied.

The camera module according to the embodiment forms an image of an object in space using the characteristics of light such as reflection, refraction, absorption, interference, diffraction, etc. It may be included in an optical instrument for the purpose of reproduction or optical measurement, propagation or transmission of an image, and the like. For example, the optical device according to the embodiment may include a mobile device, a phone, a smart phone, and a portable terminal equipped with a camera.

18 is a perspective view of a portable terminal 200A according to an embodiment, and FIG. 19 is a configuration diagram of the portable terminal 200A shown in FIG. 18 .

18 and 19 , the portable terminal 200A (hereinafter referred to as "terminal") has a body 850, a wireless communication unit 710, an A/V input unit 720, a sensing unit 740, and an input/ It may include an output unit 750 , a memory unit 760 , an interface unit 770 , a control unit 780 , and a power supply unit 790 .

The body 850 shown in FIG. 18 has a bar shape, but is not limited thereto, and a slide type, a folder type, and a swing type in which two or more sub-bodies are coupled to be movable relative to each other. , and may have various structures such as a swivel type.

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

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

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

The camera 721 may include camera modules 200 - 1 to 200 - 9 according to an embodiment.

The sensing unit 740 detects the current state of the terminal 200A, such as the opening/closing state of the terminal 200A, the position of the terminal 200A, the presence or absence of user contact, the orientation of the terminal 200A, acceleration/deceleration of the terminal 200A, etc. It is possible to generate a sensing signal for controlling the operation of the terminal 200A by sensing. For example, when the terminal 200A is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. In addition, it is responsible for sensing functions related to whether the power supply unit 790 is supplied with power and whether the interface unit 770 is coupled to an external device.

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

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

The display panel 751 may include a plurality of pixels whose color changes according to an electrical signal. For example, the display panel 751 may include a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and a three-dimensional (3D) display. It may include at least one of a display (3D display).

The touch screen panel 753 may convert a change in capacitance generated due to a user's touch on a specific area of the display panel 751 into an electrical input signal. For example, the touch screen panel 753 may include at least one sensing electrode for sensing a touch in use.

The touch screen panel 751 and the display panel 753 may be in a separate form or may be integrally formed.

For example, the touch screen panel may be of an add-on type or an embedded type. In the external type, the touch screen panel may be attached to the outside of the display panel in the form of a film. In the built-in type, the touch screen panel is installed inside the display panel. For example, the built-in type may include an in-cell type or an on-cell type.

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

The memory unit 760 may store a program for processing and control of the control unit 780, and stores input/output data (eg, phone book, message, audio, still image, photo, video, etc.) Can be temporarily saved. For example, the memory unit 760 may store an image captured by the camera 721 , for example, a photo or a moving picture.

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

The controller 780 may control the overall operation of the terminal 200A. For example, the controller 780 may perform related control and processing for a voice call, data communication, video call, and the like.

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

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

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

3B and 18 , the portable terminal 200A may include a front surface or front side 7A and a rear surface or rear side opposite to the front surface or front side. have.

Structurally, the front surface 7A of the portable terminal 200A may be glass (eg, front tempered glass) included in the display panel 751 or the touch screen panel 753 .

The touch screen panel 753 and the display panel 751 may be located adjacent to the front surface 7A of the portable terminal 200A.

The display panel 753 may include an active area.

The camera modules 200 - 1 to 200 - 9 may be fixed to be spaced apart from the display panel 753 , and the image sensor 810 may be spaced apart from the lens module 400 (or lens). The image sensor 810 may be moved in the optical axis direction by a driving unit, and the “driving unit” may include the above-described coil 120 and magnet 130 . In addition, the driving unit may include at least one of the second circuit board 805 , the first circuit board 800 , and the support member 220 . In addition, the driving unit may further include a position sensor 170 . Also, the driving unit may further include a sensing magnet 180 .

The embodiment relates to a camera module for receiving light passing through an active area of the display panel 751, the camera module including a lens module 400 (or a lens) fixed in an optical axis direction, and an image sensor spaced apart from the lens 810 , and a driving unit for moving the image sensor 810 in the optical axis direction may be included.

The lens module 400 (or the lens) may face the active area in the optical axis direction.

For example, the lens module 400 (or the lens) may be spaced apart from the active area in an optical axis direction or a direction perpendicular to the display panel.

For example, a part of the lens module 400 (or a lens) may be spaced apart from the active area in a direction perpendicular to the optical axis or parallel to the display panel.

At least a portion of the lens module 400 (or lens) may overlap the active area in the optical axis direction. For example, at least a portion of the lens module 400 (or lens) may overlap the active area in a direction perpendicular to the display panel. At least a portion of the lens module 400 (or lens) may be disposed under the active area.

At least a portion of the image sensor 810 may overlap the active area in the optical axis direction. Alternatively, at least a portion of the image sensor 810 may overlap the active area in a direction perpendicular to the display panel. At least a portion of the image sensor 810 may be disposed under the active area. For example, the active area may be a display area or a view area in which an image is displayed.

For example, the image sensor 810 and the active region may be disposed or arranged parallel to each other.

The front surface or front side of the portable terminal 200A may include a view area S1 visible to the user and a non-view area S2 invisible to the user.

The view area S1 may be a display surface on which an image is displayed on the front surface 7A of the display panel 751 to be seen by a user. In addition, the touch surface on which the user touches may be included in the view area. Also, for example, the non-view area S2 may be an area in which a user-identifiable image (eg, a black area) is not visible.

For example, the non-view area S2 may be disposed around the active area. For example, the non-view area S2 may be disposed to surround the active area.

The camera modules 200 - 1 to 200 - 9 may be disposed behind the viewing area S1 of the portable terminal 200A. For example, the camera modules 200 - 1 to 200 - 9 may not be exposed to the viewing area S1 of the portable terminal 200A.

For example, at least a portion of the camera modules 200-1 to 200-9 (eg, the lens module 400) is disposed in an optical axis direction or in a direction perpendicular to the front surface 7A of the camera modules 200-1 to 200-9. It may overlap the view area S1. In addition, the camera modules 200 - 1 to 200 - 9 may not overlap the non-view area S2 in the optical axis direction or in a direction perpendicular to the front surface 7A of the camera modules 200 - 1 to 200 - 9 .

In another embodiment, at least another part of the camera modules 200-1 to 200-9 (eg, the lens module 400) is perpendicular to the optical axis direction or the front surface 7A of the camera modules 200-1 to 200-9. It may overlap the non-view area S2 in one direction.

The display panel 751 may include an active area including a plurality of pixels. For example, the active area may be included in the view area S1 .

At least a part of the camera modules 200-1 to 200-9 (eg, at least a part of a lens or at least a part of a lens barrel) is perpendicular to the optical axis direction or the front surface 7A of the camera modules 200-1 to 200-9 It may overlap the active area of the display panel 751 in one direction.

Also, for example, at least a part of the camera modules 200-1 to 200-9 (eg, at least a part of a lens or at least a part of a lens barrel) is in the optical axis direction or the front surface 7A of the camera modules 200-1 to 200-9 ) and may overlap with at least one of the pixels of the active area of the display panel 751 in a direction perpendicular to the .

For example, the lenses or lens barrels of the camera modules 200 - 1 to 200 - 9 in the optical axis OA direction (eg, the Z axis direction) may face or face the display panel 751 .

Since the camera modules 200 - 1 to 200 - 9 are disposed behind the active area of the display panel 751 , in the embodiment, the bezel of the portable terminal 200A can be thinned, and the display area (eg, , active area) can be increased. Also, for example, the speaker of the sound output module 752 may be disposed on the side of the portable terminal 200A in order to increase the display area.

In addition, in the camera modules 200-1 to 200-9 according to the embodiment, the optical axis direction between the front surface 7A (or the rear surface 7B) of the display panel 751 and the lens module 400 irrespective of the autofocusing operation. The distances D1 and D2 are constant.

Therefore, even under the condition that the amount of light is reduced by the touch screen panel 753 and the display panel 751 , the amount of light flowing into the lens module 400 may be uniform. In the embodiment, the AF driving may be smoothly performed even under the condition of reducing the amount of light by the touch screen panel 753 and the display panel 751 due to the uniform amount of light.

In addition, since the image sensor 810 is moved in the optical axis direction to perform auto-focusing, the lens module 400 having a large-diameter lens may be provided in the embodiments 200-1 to 200-9, thereby It is possible to increase the resolution of the camera modules (200-1 to 200-9).

Features, structures, effects, etc. described in the above embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, features, structures, effects, etc. illustrated in each embodiment can be combined or modified for other embodiments by a person skilled in the art to which the embodiments belong. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present invention.

Claims (27)

a display panel including an active area; and
Comprising a camera module for receiving the light passing through the active area,
The camera module,
a lens fixed to be spaced apart from the display panel;
an image sensor spaced apart from the lens; and
and a driving unit for moving the image sensor in an optical axis direction. According to claim 1,
At least a portion of the lens overlaps the active area in the optical axis direction. According to claim 1,
At least a portion of the lens overlaps the active area in a direction perpendicular to the display panel. According to claim 1,
at least a portion of the lens is disposed below the active area. According to claim 1,
The active region includes a plurality of pixels,
At least a portion of the lens overlaps with at least one of the plurality of pixels in the optical axis direction. According to claim 1,
At least a portion of the image sensor overlaps the active area in the optical axis direction. According to claim 1,
The active area is a display area in which an image is displayed on the mobile device. According to claim 1,
at least a portion of the image sensor is disposed under the active area. According to claim 1,
The image sensor and the active area are disposed parallel to each other. According to claim 1,
and the display panel includes a non-view area disposed around the active area. According to claim 1,
wherein the lens faces the active area in the optical axis direction. According to claim 1,
A front surface including a view area visible to the user and displaying an image and a non-view area invisible to the user,
The lens faces the viewing area in the optical axis direction,
at least a portion of the lens overlaps the viewing area. In the camera module for receiving light passing through the active area of the display panel,
The camera module,
a lens fixed in the optical axis direction;
an image sensor spaced apart from the lens; and
A camera module including a driving unit for moving the image sensor in the optical axis direction. a first circuit board;
a housing disposed on the first circuit board;
a lens barrel coupled to the housing and spaced apart from the first circuit board;
a second circuit board disposed between the lens barrel and the first circuit board and spaced apart from the first circuit board;
an image sensor disposed on the second circuit board;
a holder coupled to the second circuit board;
a coil disposed on one of the housing and the holder; and
and a magnet disposed on the other one of the housing and the holder,
The lens barrel is fixed, and the image sensor is moved in the optical axis direction. 15. The method of claim 14,
and a support member electrically connecting the first circuit board and the second circuit board. 15. The method of claim 14,
The lens barrel is fixed in the optical axis direction. 15. The method of claim 14,
The lens barrel is fixed in a direction perpendicular to the optical axis. 15. The method of claim 14,
a filter coupled to the holder; and
and a support member electrically connecting the first circuit board and the second circuit board and supporting the image sensor so that the image sensor is movable. 15. The method of claim 14,
The first circuit board and the image sensor are moved in an optical axis direction by the interaction between the coil and the magnet. 15. The method of claim 14,
The lens barrel is fixed to the first circuit board at a position spaced apart from each other by a predetermined distance in the optical axis direction. 15. The method of claim 14,
The coil is a camera module that faces or overlaps the magnet in the optical axis direction. 15. The method of claim 14,
The coil is a camera module that faces or overlaps the magnet in a direction perpendicular to the optical axis direction. 15. The method of claim 14,
and an elastic member coupled to the housing and the holder. 15. The method of claim 14,
and a position sensor disposed on any one of the housing and the holder in which the coil is disposed. 15. The method of claim 14,
The magnet is disposed in the holder, the coil is disposed in the housing,
and a position sensor disposed on the first circuit board to face or overlap the magnet in an optical axis direction. 15. The method of claim 14,
a sensing magnet disposed on the holder; and
A camera module including a position sensor facing or overlapping the sensing magnet in an optical axis direction. 15. The method of claim 14,
and a filter disposed on the holder and positioned between the lens barrel and the image sensor.

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