Camera module and optical device comprising the same
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-06-15
- Publication Date
- 2026-08-11
AI Technical Summary
[0050] These embodiments can smoothly perform autofocus operations in structural configurations where light levels are reduced due to the display module, without insufficient light.
Smart Images

Figure CN115917423B_ABST
Abstract
Description
Technical Field
[0001] The embodiments relate to a camera module and an optical instrument including the camera module. Background Technology
[0002] The voice coil motor (VCM) technology used in conventional general camera modules is difficult to apply to miniature camera modules (which are expected to have low power), and related research is actively underway.
[0003] Camera modules configured for installation in small electronic devices such as smartphones are subject to frequent vibrations during use, and may shake constantly, for example, due to the user's trembling hand while holding the phone. In view of this, a technique has recently been developed for additionally installing image stabilization devices within the camera module. Summary of the Invention
[0004] Technical issues
[0005] The embodiments provide a camera module and an optical device that can smoothly perform autofocus operation in a configuration where the amount of light is reduced due to the display module, without insufficient light.
[0006] Solution
[0007] An optical device according to one embodiment includes: a display panel including an active area; and a camera module configured to receive light passing through the active area. The camera module includes: a lens fixedly disposed at a location separated from the display panel; an image sensor disposed separated from the lens; and a driving unit configured to move the image sensor in an optical axis direction.
[0008] At least a portion of the lens may overlap with the active area in the direction of the optical axis.
[0009] At least a portion of the lens may overlap the active area in a direction perpendicular to the display panel.
[0010] At least a portion of the lens may be disposed below the effective area.
[0011] The effective area may include a plurality of pixels, and at least a portion of the lens may overlap with at least one of the plurality of pixels in the optical axis direction.
[0012] At least a portion of the image sensor may overlap with the active area in the direction of the optical axis.
[0013] The active area can be a display area on which an image is displayed.
[0014] At least a portion of the image sensor may be disposed below the active area.
[0015] The image sensor and the active area can be arranged parallel to each other.
[0016] The display panel may include a non-viewing area surrounding the functional area.
[0017] The lens may face the active area along the optical axis.
[0018] The optical device may include a front surface comprising: a viewing area visible to a user and on which an image is displayed; and a non-viewing area invisible to the user. The lens may face the viewing area along the optical axis, and at least a portion of the lens may overlap with the viewing area.
[0019] The embodiment relates to a camera module configured to receive light passing through an active area of a display panel. The camera module may include: a lens fixed along an optical axis; an image sensor disposed separately from the lens; and a driving unit configured to move the image sensor along the optical axis.
[0020] According to another embodiment, the camera module may include: a first circuit board; a housing disposed on the first circuit board; a lens barrel coupled to the housing and disposed separately from the first circuit board; a second circuit board disposed between the lens barrel and the first circuit board and separated 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 in one of the housing and the holder; and a magnet disposed in the other of the housing and the holder. The lens barrel may be fixed, while the image sensor may be movable in the optical axis direction.
[0021] It may include a support member that connects the first circuit board and the second circuit board in a conductive manner.
[0022] The lens barrel can be fixed in the direction of the optical axis.
[0023] The lens barrel can be fixed in a direction perpendicular to the optical axis.
[0024] The camera module may include: a filter coupled to the retainer; and a support member that electrically connects the first circuit board to the second circuit board and supports the image sensor to make the image sensor movable.
[0025] Due to the interaction between the coil and the magnet, the first circuit board and the image sensor can be moved along the optical axis.
[0026] The lens barrel can be fixedly positioned at a predetermined distance from the first circuit board in the optical axis direction.
[0027] The coil may face or overlap with the magnet in the direction of the optical axis.
[0028] The coil may face or overlap with the magnet in a direction perpendicular to the optical axis.
[0029] The camera module may include an elastic member connected to the housing and the retainer.
[0030] The camera module may include a position sensor disposed in one of the housing and the retainer (where the coil is disposed).
[0031] The magnet may be disposed on the holder, the coil may be disposed within the housing, and the camera module may include a position sensor disposed on the first circuit board and facing or overlapping the magnet in the optical axis direction.
[0032] The camera module may include: a sensing magnet disposed on the holder; and a position sensor facing or overlapping the sensing magnet in the optical axis direction.
[0033] The camera module may include a filter disposed on the retainer and located between the lens barrel and the image sensor.
[0034] A mobile device (handheld device) according to another embodiment includes: a display panel including an active area; and a camera module configured to receive light passing through the active area. The camera module includes: a light path conversion unit including a first surface and a second surface, wherein light passing through the active area is introduced into the first surface, and the light introduced into the first surface exits from the second surface; a lens disposed separate from the second surface; a motion unit configured to move the lens; and an image sensor disposed separate from the lens.
[0035] The reflective component may overlap the active area in a direction perpendicular to the display panel. The active area may include multiple pixels, and at least a portion of the optical path transformation unit may overlap at least one of the multiple pixels in a direction perpendicular to the display panel.
[0036] At least a portion of the moving unit may overlap the active area in a direction perpendicular to the display panel. The moving unit may move the lens in a direction parallel to the display panel.
[0037] The active area can be a display area on which an image is displayed. The image sensor and the active area can be positioned perpendicular to each other. The display panel may include a non-viewing area surrounding the active area.
[0038] The movable device may include a front surface comprising: a viewing area visible to the user and displaying an image thereon; and a non-viewing area invisible to the user. The optical path conversion unit may face the viewing area in a direction perpendicular to the display panel, and at least a portion of the optical path conversion unit may overlap with the viewing area.
[0039] The lens may face the second surface in a direction parallel to the display panel. The first surface may overlap the active area in a direction perpendicular to the display panel. The first surface may be separated from the display panel.
[0040] The optical path conversion unit may include: a reflective member, which includes a first surface and a second surface; a retainer, which accommodates the reflective member; and a cover member, which includes an upper plate facing the display panel, a lower plate positioned opposite to the upper plate, and a side plate connecting the upper plate and the lower plate, and the cover member accommodates the reflective member and the retainer.
[0041] The upper surface of the upper plate may contact the display panel. Alternatively, the upper surface of the upper plate may be separated from the display panel.
[0042] The movable device may include a shock-absorbing component disposed between the upper surface of the upper plate and the display panel. The upper surface of the upper plate may be positioned closer to the display panel than the first surface. The ratio of the distance between the second surface and the lens to the distance between the rear surface of the display panel and the first surface may be from 1:0.5 to 1:5.
[0043] The display panel may be an LCD panel, and the ratio of the distance between the second surface and the lens to the distance between the front surface of the display panel and the first surface may be from 1:2.1 to 1:15. Alternatively, the display panel may be an OLED panel, and the ratio of the distance between the second surface and the lens to the distance between the front surface of the display panel and the first surface may be from 1:0.7 to 1:6.
[0044] The ratio of the distance between the rear surface of the display panel and the first surface to the distance between the second surface and the image sensor can be from 1:3.2 to 1:22.
[0045] The display panel may be an LCD panel, and the ratio of the distance between the front surface of the display panel and the first surface to the distance between the second surface and the image sensor may be from 1:1.1 to 1:5.1.
[0046] The display panel may be an OLED panel, and the ratio of the distance between the front surface of the display panel and the first surface to the distance between the second surface and the image sensor may be from 1:2.7 to 1:16.5.
[0047] According to another embodiment, the camera module may include: a first cover member comprising an upper plate, a lower plate disposed opposite to the upper plate, a side plate connecting the upper plate and the lower plate, and an opening formed in the upper plate; a reflective member disposed within the cover member and including a first surface and a second surface, light being introduced through the opening into the first surface and the light introduced into the first surface being emitted from the second surface; an image sensor disposed facing the second surface; a lens disposed between the second surface and the image sensor; and a moving unit configured to move the lens. The ratio of a first distance between the second surface and the lens to a second distance between the first surface and the upper surface of the upper plate may be from 1:0.5 to 1:5. The first distance may be shorter than the second distance.
[0048] The moving unit may include: a second cover member comprising an upper plate and a side plate connected to the upper plate; a housing disposed within the second cover member; and a spool disposed within the housing and connected to the lens. The side plate of the first cover member may be connected to the upper plate of the second cover member.
[0049] Beneficial effects
[0050] These embodiments can smoothly perform autofocus operations in structural configurations where light levels are reduced due to the display module, without insufficient light.
[0051] Furthermore, according to these embodiments, since a constant distance is maintained between the display panel and the incident surface of the reflective member, and is not affected by the autofocus operation of the lens, a constant amount of light can be introduced into the reflective member in a structural configuration where the amount of light is reduced due to the display panel.
[0052] Furthermore, according to these embodiments, since a constant amount of light is introduced into the camera module, AF operation can be performed smoothly in structural configurations where the amount of light is reduced due to the display panel, and resolution degradation in the camera module can be avoided. Attached Figure Description
[0053] Figure 1 This is a schematic cross-sectional view of a camera module according to one embodiment.
[0054] Figure 2 yes Figure 1 A schematic plan view of the first circuit board, the second circuit board, the image sensor, the holder, the magnet, and the filter shown.
[0055] Figure 3a This is a schematic concept diagram of a conventional camera module located below the display panel.
[0056] Figure 3b A camera module according to one embodiment is shown positioned below the display panel.
[0057] Figure 4 This is a schematic cross-sectional view of a camera module according to another embodiment.
[0058] Figure 5 This is a schematic cross-sectional view of a camera module according to yet another embodiment.
[0059] Figure 6a yes Figure 5 The diagram shows a schematic plan view of the first circuit board, the second circuit board, the image sensor, the holder, the filter, the coil, and the magnet.
[0060] Figure 6b yes Figure 6a A modified embodiment of the coil shown.
[0061] Figure 7 This is a schematic cross-sectional view of a camera module according to yet another embodiment.
[0062] Figure 8 yes Figure 7 The diagram shows a schematic plan view of the first circuit board, the second circuit board, the image sensor, the holder, the filter, the coil, and the magnet.
[0063] Figure 9 This is a schematic cross-sectional view of a camera module according to yet another embodiment.
[0064] Figure 10 This is a schematic cross-sectional view of a camera module according to yet another embodiment.
[0065] Figure 11 yes Figure 10 The diagram shows a schematic plan view of the first circuit board, the second circuit board, the image sensor, the holder, the filter, the coil, the magnet, and the position sensor.
[0066] Figure 12 This is a schematic cross-sectional view of a camera module according to yet another embodiment.
[0067] Figure 13a yes Figure 12 The diagram shows a schematic plan view of the first circuit board, the second circuit board, the image sensor, the holder, the filter, the coil, the magnet, the position sensor, and the sensing magnet.
[0068] Figure 13b An embodiment of the relative disposition between the magnet, the sensing magnet, and the position sensor is shown.
[0069] Figure 14 This is a schematic cross-sectional view of a camera module according to yet another embodiment.
[0070] Figure 15a This is a schematic cross-sectional view of a camera module according to yet another embodiment.
[0071] Figure 15b This is a schematic cross-sectional view of a camera module according to yet another embodiment.
[0072] Figure 15c This is a schematic cross-sectional view of a camera module according to yet another embodiment.
[0073] Figure 16 yes Figure 1 A perspective view of one embodiment of the first circuit board, the second circuit board, and the support member shown.
[0074] Figure 17 yes Figure 16 An enlarged view of the support member shown.
[0075] Figure 18 This is a perspective view of a camera module according to one embodiment.
[0076] Figure 19 yes Figure 18 An exploded perspective view of the camera module shown.
[0077] Figure 20 This is an exploded three-dimensional view of the cover components and optical path transformation unit.
[0078] Figure 21 It is intercepted along line AB. Figure 20 The diagram shows a cross-sectional view of the cover component and the optical path transformation unit.
[0079] Figure 22 This is an exploded perspective view of a moving unit according to one embodiment.
[0080] Figure 23 This is a perspective view of the movable unit with the cover component removed.
[0081] Figure 24a yes Figure 22 The diagram shows a three-dimensional representation of the spool, sensing magnet, and balancing magnet.
[0082] Figure 24b It is shown Figure 22 A view showing the connections between the spool, coil, sensing magnet, and balancing magnet.
[0083] Figure 25a yes Figure 22 The diagram shows a perspective view of the housing, position sensor, and capacitor.
[0084] Figure 25b It is a three-dimensional view of the housing to which the first and second magnets, circuit board and position sensor are connected.
[0085] Figure 26 This is a view showing the connection between the lower elastic member, circuit board, position sensor, and capacitor.
[0086] Figure 27 It is a three-dimensional view of the base, the lower elastic component, and the circuit board.
[0087] Figure 28 It was cut along line CD. Figure 23 The cross-sectional view of the moving unit shown.
[0088] Figure 29 It is intercepted along line EF. Figure 23 The cross-sectional view of the moving unit shown.
[0089] Figure 30a Another embodiment of a camera module located behind the display panel of a portable terminal is shown.
[0090] Figure 30b A camera module with a shock-absorbing component is shown according to another embodiment.
[0091] Figure 30c A camera module including a reflective element is shown according to another embodiment.
[0092] Figure 30d A camera module including a reflective element is shown according to yet another embodiment.
[0093] Figure 31 The second surface of the reflective component and the diameter of the lens of the lens module are shown.
[0094] Figure 32a This is a schematic concept diagram of a camera module positioned below the display panel, based on a comparative example.
[0095] Figure 32b This is a schematic concept diagram of a camera module positioned below the display panel according to this embodiment.
[0096] Figure 33 This is an exploded perspective view of a camera module according to another embodiment.
[0097] Figure 34 This is a perspective view of a portable terminal according to one embodiment.
[0098] Figure 35 yes Figure 34 The diagram shows the configuration of the portable terminal. Detailed Implementation
[0099] Hereinafter, several embodiments of the present disclosure that can specifically achieve the foregoing objectives will be described with reference to the accompanying drawings.
[0100] In the following description of these embodiments, it should be understood that when each element is referred to as “above” or “below” another element, it may be located directly above or below the other element, or it may be indirectly formed such that one or more intermediate elements exist. Additionally, when an element is referred to as being “above” or “below”, it may include “below the element” and “on the element” based on that element.
[0101] Furthermore, the use of relational terms such as "first," "second," "upper," "lower," and "below" is solely for distinguishing one object or element from another, and does not necessarily imply any physical relationship, logical relationship, or order between these objects or elements. Wherever possible, the same reference numerals will be used throughout the figures to refer to the same parts.
[0102] Furthermore, the terms “comprising,” “including,” and “having” used herein should be interpreted as not excluding additional elements, but rather including such additional elements, as these corresponding elements may be inherent (unless otherwise described). Additionally, the term “corresponding to” used herein may include at least one of “facing” and “overlapping.”
[0103] Hereinafter, a camera module and an optical device including the camera module according to several embodiments will be described with reference to the accompanying drawings. For ease of description, a Cartesian coordinate system (x, y, z) will be used to describe the camera module according to these embodiments, but these embodiments are not limited thereto, and another coordinate system may be used for description. In the corresponding drawings, the X-axis and Y-axis may be directions perpendicular to the Z-axis (which is the direction of the optical axis (OA)). The Z-axis, which is the direction of the optical axis (OA), may be referred to as the "first direction," the X-axis direction may be referred to as the "second direction," and the Y-axis direction may be referred to as the "third direction."
[0104] A "shake compensation function" applied to a small camera module in a mobile device (such as a smartphone or tablet) can be a function that moves the lens in a direction perpendicular to the optical axis, or tilts the lens relative to the optical axis, in order to eliminate vibration (or movement) caused by the user's hand tremors.
[0105] Additionally, the "autofocus function" can be a function that automatically focuses on a target by moving the lens along the optical axis based on the distance from the target, so that the image sensor can obtain a clear image of the target.
[0106] Hereinafter, "camera module" may be alternatively referred to as "image acquisition device," "video recording device," "camera equipment," "camera apparatus," or "camera." "Coil" may be alternatively referred to as "coil unit" or "coil section," and "elastic member" may be alternatively referred to as "elastic unit" or "spring."
[0107] Additionally, in the following description, "terminal" may be alternatively referred to as plate, electrode, conductive layer, or solder portion.
[0108] Figure 1 This is a schematic cross-sectional view of a camera module 200-1 according to one embodiment. Figure 2 yes Figure 1 The diagram shows a schematic plan view of the first circuit board 800, the second circuit board 805, the image sensor 810, the holder 600, the magnet 130, and the filter 610. Figure 16 It is the first circuit board 800, the second circuit board 805 and Figure 1 A perspective view of one embodiment of the support member 220 shown, while Figure 17 yes Figure 16 An enlarged view of the support member 220 shown.
[0109] Reference Figure 1 , Figure 2 , Figure 16 and Figure 17The camera module 200-1 may include a first circuit board 800, a second circuit board 805, an image sensor 810, a lens module 400, a coil 120, a magnet 130, and a support member 220.
[0110] The camera module 200-1 may also include at least one of housing 140, retainer 600, or filter 610.
[0111] The second circuit board 805 may be disposed on the first circuit board 800 and may be separated from the first circuit board 800.
[0112] The image sensor 810 can be mounted on the second circuit board 805 and can be electrically connected to the second circuit board 805 via at least one wire 95.
[0113] A housing 140 may be disposed on a first circuit board 800. The housing 140 may accommodate a lens module 400 and may alternatively be referred to as a "lens holder," "holder," "cover," or "shell." Although in Figure 1 The illustration shows that housing 140 is implemented as a single body, but this disclosure is not limited thereto. In another embodiment, housing 140 may include two or more housings (or retainers) that are separate or isolated from each other, and lens module 400 may be coupled to any of the housings (or retainers).
[0114] In one example, an opening may be formed in the housing 140 for mounting the lens barrel 410 therein. For example, the opening in the housing 140 may be shaped to extend through a through-hole or cavity in the housing 140 along the optical axis (OA), and the shape of the opening in the housing 140 may be the same as or similar to the shape of the lens barrel 410, such as a circular shape, an elliptical shape, or a polygonal shape. However, this disclosure is not limited thereto.
[0115] In one example, housing 140 may include a top plate 141 and a side plate 142 extending from the top plate. The aforementioned openings in housing 140 may be formed in the top plate 141.
[0116] The lens module 400 may be disposed above the image sensor 810 and may be supported by the housing 140. In one example, the lens module 400 may be disposed within the housing 140 and may be coupled to the housing 140.
[0117] Lens module 400 may alternatively be referred to as a “lens unit” or “lens assembly”. Lens module 400 may include a lens barrel 410 coupled to housing 140 and a lens array 420 disposed in lens barrel 410. Lens array 420 may include at least one lens and may alternatively be referred to as a “lens”.
[0118] The lens barrel 410 may have a cylindrical or polyhedral structure, and its cross-section cut along a direction perpendicular to the optical axis may have a circular, elliptical, or polygonal shape, but this disclosure is not limited thereto. In one example, the lens barrel 410 may have threads or helical grooves formed in its outer surface for connection to the spool 110, while the housing 140 may have threads or helical grooves formed therein for connection to the lens barrel. In another embodiment, the aforementioned threads or helical grooves of both the lens barrel and the housing may be omitted.
[0119] The coil 120 can be disposed in the housing 140 or on the lens module 400.
[0120] In one example, coil 120 may be connected to housing 140 or lens barrel 410.
[0121] In one example, the housing 140 or lens barrel 410 may have a groove formed therein to allow the coil 120 to be placed or received therein.
[0122] The coil 120 may be disposed on the outer surface of the lens barrel 410 and may be a drive coil that interacts with the magnet 130 in an electromagnetic manner.
[0123] A drive signal (such as drive current or voltage) may be applied to coil 120 to generate an electromagnetic force by means of interaction with magnet 130. The drive signal applied to coil 120 may be a DC signal and / or an AC signal.
[0124] The coil 120 can be electrically connected to the first circuit board 800. In one example, a drive signal can be applied to the coil 120 through the first circuit board 800.
[0125] In one example, housing 140 may be provided with a conductive layer, conductor, or circuit pattern to electrically connect coil 120 to first circuit board 800. Alternatively, a separate circuit board may be provided in housing 140 for electrically connecting coil 120 to first circuit board 800.
[0126] The AF operation unit can move along a first direction, such as the upward direction (positive Z-axis direction) or the downward direction (negative Z-axis direction), by means of the electromagnetic force generated by the interaction between the coil 120 and the magnet 130.
[0127] The camera module 200-1 can perform both unidirectional and bidirectional drive for autofocus. Here, unidirectional drive refers to the movement of the AF operating unit in one direction (e.g., the upward direction (positive Z-axis direction)) based on the initial position of the AF operating unit, while bidirectional drive refers to the movement of the AF operating unit in two directions (e.g., the upward direction or the downward direction) based on the initial position of the AF operating unit.
[0128] By controlling the strength and / or polarity (e.g., the direction of the current) of the drive signal applied to the coil 120, the strength and / or direction of the electromagnetic force generated by the interaction between the coil 120 and the magnet 130 can be controlled, thereby controlling the movement of the AF operation unit along a first direction, and thus enabling the autofocus function to be executed.
[0129] The AF operation unit may include an image sensor 810, which is elastically supported by a support member 220 and / or an elastic member 150 (described later). Additionally, the AF operation unit may include multiple components that move together with the image sensor 810.
[0130] The AF operation unit can be alternatively referred to as the "moving unit".
[0131] In one example, the AF operation unit may include a second circuit board 805 and an image sensor 810. Alternatively, in another example, the AF operation unit may also include a holder 600 and a magnet 130.
[0132] In one example, coil 120 may be disposed on lens barrel 410 to have a closed loop shape. In one example, coil 120 may be formed as a closed loop wound around optical axis OA in a clockwise or counterclockwise direction, and may be wound or disposed on the outer surface of lens barrel 410.
[0133] In another embodiment, coil 120 may include at least one coil ring. In one example, coil 120 may include a plurality of coil units, each of which may be implemented as a coil ring. The number of coil rings may be the same as the number of magnets 130, but this disclosure is not limited thereto.
[0134] The retainer 600 can contact, attach to, or be fixed to the upper surface of the second circuit board 805. The retainer 600 can also be referred to as a sensor base.
[0135] The retainer 600 can be positioned below the lens module 400.
[0136] The retainer 600 may include an opening corresponding to the image sensor 810.
[0137] An opening in the retainer 600 may be formed to pass through the retainer 600 along the optical axis (OA) direction and may alternatively be referred to as a "hole" or "through hole".
[0138] In one example, the opening in the retainer 600 may be formed through the center of the retainer 600 and may be configured to correspond to or face the image sensor 810 (e.g., the active area of the image sensor 810).
[0139] The retainer 600 may include a mounting portion 500, the upper surface of which is recessed to allow a filter 610 to be mounted therein, and the filter 610 may be disposed in the mounting portion 500. The mounting portion 500 may include a bottom surface and side surfaces, and an opening in the retainer 600 may be formed in the bottom surface of the mounting portion.
[0140] The filter 610 may be disposed on the retainer 600. The filter 610 may be plate-shaped or planar quadrilateral in shape, but this disclosure is not limited thereto.
[0141] The opening 501 in the retainer 600 may have the same shape as the filter 610, or may have a shape suitable for receiving the filter 610. When viewed from above, the shape of the opening 501 may be, for example, a polygonal shape (e.g., a quadrilateral shape), a circular shape, or an elliptical shape, but this disclosure is not limited thereto.
[0142] Light passing through the lens module 400 can be introduced into the image sensor 810 through the filter 610.
[0143] Filter 610 can be used to block light within a specific frequency band from entering the image sensor 810 from the light passing through the lens module. Filter 610 can be, for example, an infrared cut-off filter, but this disclosure is not limited thereto. In another embodiment, the filter can be an infrared-transmitting filter. In one example, filter 610 can be configured to be parallel to the XY plane, which is perpendicular to the optical axis OA.
[0144] A first adhesive member (not shown) may be disposed between the filter 610 and the holder 600, and the first adhesive member may connect 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 connect the holder 600 and the second circuit board 805 to each other.
[0145] A third adhesive component (not shown) may be disposed between the housing 140 and the first circuit board 800, and the third adhesive component may connect the housing 140 and the first circuit board 800 to each other. The first to third adhesive components may all be, for example, epoxy resin, thermosetting adhesive or UV-curable adhesive.
[0146] The first circuit board 800 and the second circuit board 805 may be, for example, printed circuit boards (PCBs). The first circuit board 800 and the second circuit board 805 may be electrically connected to each other.
[0147] Both the first circuit board 800 and the second circuit board 805 may include at least one of a rigid printed circuit board or a flexible printed circuit board.
[0148] Image sensor 810 may include an active area (or effective image area) into which light passing through filter 610 is introduced to form an image contained in the light.
[0149] The optical axis of the image sensor 810 and the optical axis of the lens module 400 can be aligned with each other. The image sensor 810 can convert the light illuminating the above-mentioned active area into an electrical signal and output the converted electrical signal.
[0150] In one example, the effective areas of the filter 610 and the image sensor 810 can be separated from each other so that they face each other in the optical axis (OA) direction.
[0151] At least one circuit element (not shown) may be disposed on or mounted on the first circuit board 800. In one example, at least one circuit element (not shown) may be electrically connected to the circuit board 800 and may constitute a controller that controls the drive signals applied to the image sensor 810 and the coil 120.
[0152] In one example, the circuit element may include at least one of a capacitor, a memory, a controller, a sensor (e.g., a motion sensor), or an integrated circuit (IC).
[0153] In one example, the first circuit board 800 may be electrically connected to the coil 120. In another example, a drive signal may be applied to the coil 120 via the first circuit board 800.
[0154] According to another embodiment, the camera module may also include a blocking member 1300 disposed on the upper surface of the filter 610. The blocking member 1300 may alternatively be referred to as a "mask".
[0155] In one example, the blocking member 1300 may be disposed on the edge region of the upper surface of the filter 610 and may be used to prevent at least a portion of the light that passes through the lens module 400 and is introduced into the edge region of the filter 610 from passing through the filter 610. In one example, the blocking member 1300 may be coupled to or attached to the upper surface of the filter 610 by means of an adhesive member.
[0156] For example, when viewed from above, the filter 610 may be quadrilateral in shape, and the blocking member 1300 may be formed along a corresponding side of the upper surface of the filter 610 to be symmetrical with respect to the filter 610. In one example, the blocking member 1300 may be formed to have a constant width on the corresponding side of the upper surface of the filter 610. In one example, the blocking member 1300 may be formed of an opaque material. In one example, the blocking member 1300 may be implemented as an opaque adhesive material coated onto the filter 610, or it may be implemented as a film attached to the filter 610.
[0157] The effective areas of the filter 610 and the image sensor 810 can be configured to face each other or overlap each other in the optical axis direction, while the blocking member 1300 may not overlap with the effective area of the image sensor 810 in the optical axis direction. In addition, at least a portion of the blocking member 1300 may overlap with the terminals and / or wires 95 of the second circuit board 805 in the optical axis direction.
[0158] Since the blocking member 1300 is configured such that at least a portion of it overlaps with the terminals and / or wires 95 of the second circuit board 805 in the optical axis direction, the blocking member 1300 can block some of the light passing through the lens module from entering the terminals and / or wires of the second circuit board 805, thereby avoiding flare phenomenon and thus avoiding image distortion or quality degradation formed by the image sensor 810.
[0159] In another embodiment, the blocking member 1300 can be omitted. In yet another embodiment, both the filter 610 and the blocking member 1300 can be omitted.
[0160] Magnet 130 can be mounted on retainer 600.
[0161] In one example, magnet 130 may be positioned or arranged to correspond to or face coil 120 in the direction of the optical axis (OA) or in a direction parallel to the optical axis.
[0162] In one example, magnet 130 may be a unipolar magnetized magnet including one N pole and one S pole, or it may be a bipolar magnetized magnet including two N poles and two S poles.
[0163] The magnet 130 may include one or more magnet units. The retainer 600 may have a receiving portion in which the magnet 130 is disposed. In this case, the receiving portion may be formed as a recess or a hole.
[0164] Reference Figure 1The magnet 130 may be disposed on the upper surface of the retainer 600. This is done to reduce the distance to the coil 120, thereby increasing the electromagnetic force. In another embodiment, the magnet 130 may be disposed on the side or lower surface of the retainer 600.
[0165] The support member 220 can elastically support the second circuit board 805.
[0166] In one example, the support member 220 can support the second circuit board 805 such that the second circuit board 805 is movable in the direction of the optical axis, and can electrically connect the first circuit board 800 to the second circuit board 805.
[0167] In one example, one end of the support member 220 can be soldered to the first circuit board 800, while the other end of the support member 220 can be soldered to the second circuit board 805.
[0168] The support member 220 may be implemented as a component that is conductive and can elastically support another component, such as a suspension wire, leaf spring, or coil spring.
[0169] Alternatively, in another embodiment, the support member may be integrally formed with the first circuit board 800. In yet another embodiment, the support member may be integrally formed with the second circuit board 805.
[0170] like Figure 2 As shown, the support member 220 may include multiple support members, which can support the second circuit board 805 and electrically connect the first circuit board 800 to the second circuit board 805. A drive signal applied to the coil 120 can be transmitted from the first circuit board 800 to the second circuit board 805 through the support member 220.
[0171] Reference Figure 16 and Figure 17 The first circuit board 800 may include a plurality of through holes 27A, which are arranged to be spaced apart from each other.
[0172] The support member 220 may include multiple support members. Each of the multiple support members may include a first elastic member 281 and a second elastic member 282.
[0173] The first elastic member 281 can pass through a corresponding through hole among the plurality of through holes in the first circuit board 800, and one end of the first elastic member 281 can be connected to the lower surface of the first circuit board 800. In one example, one end of the first elastic member 281 can be connected to a terminal disposed on the lower surface of the first circuit board 800 by means of solder, and the two elements can be electrically connected to each other.
[0174] The second elastic member 282 may be connected to the first elastic member 281. In one example, one end of the second elastic member 282 may be connected to the other end of the first elastic member 281, while the other end of the second elastic member 282 may be connected to the second circuit board 805.
[0175] In one example, the other end of the second elastic member 282 may be connected to a terminal 44A formed on the upper surface of the second circuit board 805, and the two elements may be electrically connected to each other.
[0176] The second elastic member 282 may include: a first connecting part 31 connected to a terminal 44A of the second circuit board 805; a second connecting part 32 connected to the other end of the first elastic member 281; and a connecting part 33 connecting the first connecting part 31 and the second connecting part 32 to each other.
[0177] In one example, the first connection portion 31 may be disposed on the upper surface of the second circuit board 805 and may be connected to the terminal 44A of the second circuit board 805 by means of solder or conductive adhesive.
[0178] The second connecting part 32 can be connected to the other end of the first elastic member 281 by means of solder or conductive adhesive.
[0179] The second connecting portion 32 may have a hole 32A formed therein, through which the other end of the first elastic member 281 may pass.
[0180] The other end of the first elastic member 281 passing through the hole 32A in the second connecting part 32 can be directly connected to the second connecting part 32 by means of a conductive adhesive member or solder, and the second connecting part 32 and the first elastic member 281 can be electrically connected to each other.
[0181] For example, the second connecting portion 32 is a region in which solder for connection to the first elastic member 281 is provided, and this region may include the hole 32A and the region surrounding the hole 32A. Although the second connecting portion 32 is in Figure 17 The portion is illustrated as having a circular shape, but this disclosure is not limited thereto. In another embodiment, the second connecting portion 32 may have a polygonal shape (e.g., a quadrilateral shape) or an elliptical shape.
[0182] In one example, the diameter K of the second connecting portion 32 may be greater than the width W1 of the first connecting portion 31, but this disclosure is not limited thereto. In another embodiment, the diameter K of the second connecting portion 32 may be equal to or less than the width of the first connecting portion 31.
[0183] The connecting portion 33 can connect the first coupling portion 31 and the second coupling portion 32 to each other, and the connecting portion can include at least one straight portion and at least one curved portion.
[0184] In one example, the curved portion can have a shape that extends from the straight portion in a direction perpendicular to the optical axis and bends left or right.
[0185] In one example, the connecting portion 33 can include a spiral shape, but the present disclosure is not limited thereto.
[0186] In one example, the connecting portion 33 can include: a first straight portion 33-1, coupled to the first coupling portion 31; a first curved portion 34-1, which bends and extends from the first straight portion 33-1 in a first lateral direction; a second straight portion 33-2, connected to the first curved portion 34-1; a second curved portion 34-2, which bends and extends from the second straight portion 33-2 in a second lateral direction; a third straight portion 33-3, connected to the second curved portion 34-2; a third curved portion 34-3, which bends and extends from the third straight portion 33-3 in a third lateral direction; a fourth straight portion 33-4, connected to the third curved portion 34-3; a fourth curved portion 34-4, which bends and extends from the fourth straight portion 33-4 in a fourth lateral direction; and a fifth straight portion 33-5, which connects the fourth curved portion 34-4 to the second coupling portion 32. For example, the first to fourth lateral directions can all be the leftward direction, but the present disclosure is not limited thereto. At least one of the first to fourth lateral directions can be the rightward direction.
[0187] The width W2 of the connecting portion 33 can be smaller than the width W1 of the first coupling portion 31 and the diameter K of the second coupling portion 32 (W2 < W1 and W2 < K). Thus, the second elastic member 282 can elastically support the AF operation unit and enable the AF operation unit to easily move in the optical axis direction.
[0188] In another embodiment, the width of the connecting portion 33 can be equal to or greater than the diameter of the second coupling portion 32.
[0189] The thickness t1 of the first coupling portion 31, the thickness t2 of the connecting portion 33, and the thickness of the second coupling portion 32 can be the same as each other. In another embodiment, at least one of the thickness t1 of the first coupling portion 31, the thickness t2 of the connecting portion 33, or the thickness of the second coupling portion 32 can be different from the others. For example, the thickness t2 of the connecting portion 33 can be smaller than the thickness of the first coupling portion 31 and the thickness of the second coupling portion 32.
[0190] In Figure 16 and Figure 17In the illustrated embodiment, the second elastic member 282 is connected to the upper end of the first elastic member 281 and to the second circuit board 805, but this disclosure is not limited thereto. In another embodiment, one end (upper end) of the first elastic member can be directly connected to the second circuit board 805 by means of solder, while the second elastic member can connect the lower end of the first elastic member to the first circuit board 800. In one example, the second connecting portion of the second elastic member can be connected to the lower end of the first elastic member 281, while the first connecting portion of the second elastic member can be connected to a terminal of the first circuit board 800.
[0191] In another embodiment, the support member may include a first elastic member 281, a second elastic member connected to the upper end of the first elastic member 281, and a third elastic member connected to the lower end of the first elastic member 281. In this case, for Figure 17 The description of the second elastic member 282 shown can also be applied to each of the second and third elastic members. That is, one end (or upper end) of the first elastic member 281 can be connected to the second connecting portion 32 of the second elastic member, and the first connecting portion 31 of the second elastic member can be connected to the terminal 44A of the second circuit board 805. In addition, the other end (or lower end) of the first elastic member 281 can be connected to the second connecting portion 32 of the third elastic member, and the first connecting portion 31 of the third elastic member can be connected to the terminal of the first circuit board 800.
[0192] In this embodiment, the lens module 400 is fixed to the housing 140 and cannot move in the optical axis direction. That is, the lens module 400 and the housing 140 together form a fixed unit. On the other hand, in this embodiment, due to the interaction between the magnet 130 and the coil 120 (which is given a drive signal), the second circuit board 805 and the image sensor 810 can move in the optical axis direction. That is, the second circuit board 805 and the image sensor 810 form a movable unit. In other words, in this embodiment, AF operation can be implemented by controlling the displacement of the image sensor 810 in the optical axis (OA) direction.
[0193] The size of the display module in portable terminals with camera modules installed is gradually increasing. As a method to increase the size of the display module in portable terminals and achieve a thin bezel, the camera module can be placed on the lower surface of the display device or below the display device.
[0194] When the camera module (“under-display camera module”) is positioned on the lower surface of the display module or below the display module, the light transmittance of the display module is a very important factor in AF operation. This is because as light passes through the display module, the amount of light entering the camera module decreases.
[0195] In a typical camera module, the image sensor is fixed, while the lens module moves along the optical axis to perform autofocus. The distance between the lens module and the display module can be changed through the autofocus operation.
[0196] Figure 3a This is a schematic concept diagram of a camera module 10 based on a comparative example, which is positioned below the display panel, and Figure 3b The camera module 200-1 according to this embodiment is shown, which is located below the display panel.
[0197] Reference Figure 3a The camera module 10 may include a circuit board 80, an image sensor 81 disposed on the circuit board 80, and a lens-driving unit 40 disposed on the image sensor 81. The lens-driving unit 40 may be disposed between the lower surface (or rear surface) of the display panel 751 and the image sensor 81.
[0198] The lens-drive unit 40 may include a lens module and a drive unit for moving the lens module along the optical axis. As the lens module 40 of the lens-drive unit is moved along the optical axis, the distance d1 or d2 between the lens module (or lens) of the lens-drive unit 40 and the front surface (or rear surface) of the display panel 751 may be changed.
[0199] As d1 (or d2) increases, the amount of light entering the lens module of the lens-drive unit 40 can be reduced. Additionally, as... Figure 3a As shown, the amount of light entering the lens module can be significantly altered as the lens module moves along the optical axis.
[0200] exist Figure 3a In the camera module shown, the amount of light is reduced due to the display module. As d1 (or d2) increases, the amount of light entering the lens module of the lens-drive unit 40 is further reduced. Therefore, AF operation may not be able to be performed properly, the image generated by the image sensor 81 may be darker, and the resolution of the image sensor 81 may be reduced.
[0201] In particular, during AF operation, when the lens-drive unit 40 reaches its furthest position from the display panel 751, the amount of light entering the image sensor 81 may be significantly reduced.
[0202] Reference Figure 3b In this embodiment, the lens module 400 is fixed and does not move in the optical axis direction. In one example, the lens barrel 410 may be fixedly positioned at a predetermined distance D3 separated from the first circuit board 800 along the optical axis (OA).
[0203] In one example, the lens barrel 410 may be fixed in the optical axis direction, which may mean that the lens barrel 410 will not move or shift in the optical axis direction.
[0204] In another example, the lens barrel 410 may be fixed in a direction perpendicular to the optical axis, which may mean that the lens barrel 410 will not move or shift in a direction perpendicular to the optical axis.
[0205] The distance D1 between the front surface 7A of the portable terminal 200A and the lens module 400 along the optical axis can be a preset distance and can be constant, unchanging due to the AF operation of the camera modules 200-1 to 200-11. Similarly, the distance D2 between the rear surface 7B of the display panel 751 and the lens module 400 along the optical axis can be a preset distance and can be constant, unchanging due to the AF operation of the camera modules 200-1 to 200-11.
[0206] For example, the front surface 7A of the portable terminal 200A can be the front surface of the display module. For example, in an embedded structure where the display module and the touch screen module are integrated, the front surface 7A of the portable terminal 200A can be the front surface of the display module.
[0207] Alternatively, for example, in an add-on configuration where the display module is set separately from the touchscreen module, the front surface 7A of the portable terminal 200A may be the front surface of the touchscreen module.
[0208] Alternatively, for example, the lens module 400 may contact the rear surface 7B of the display panel 751, and D1 may be zero. In this case, among the components constituting the overall display panel 751, the rear surface of the display panel 751 may be the rear surface of the component (e.g., glass) closest to the camera module.
[0209] Even in a configuration where the amount of light is reduced due to the display panel 751, the amount of light entering the lens module 400 can remain constant because the distance D1 is constant. Therefore, according to this embodiment, the lens module can receive sufficient light for AF operation. Thus, AF operation can still be performed smoothly even in a configuration where the amount of light is reduced due to the display panel 751.
[0210] According to this embodiment, since the image sensor 810 is moved along the optical axis to perform autofocus, the lens module 400 can have a large-diameter lens, which increases the resolution of the camera module.
[0211] Figure 4 This is a schematic cross-sectional view of a camera module 200-2 according to another embodiment.
[0212] Figure 4 Show Figure 1 The image shows a modified example of the camera module. Figure 4 In the figures, the same reference numerals are used to indicate the same... Figure 1 The same components will be omitted or simplified.
[0213] like Figure 4 As shown, magnet 130A is disposed in housing 140, while coil 120A is disposed on holder 600. Figure 4 The housing 140 shown may have a groove formed therein to allow the magnet 130A to be disposed therein, and Figure 4 The retainer 600 shown may have a slot formed therein to allow the coil 120A to be disposed therein.
[0214] That is, such as Figure 4 As shown, magnet 130A can be fixed to housing 140 to make it immovable, while coil 120A can be moved along the optical axis together with circuit board 805, image sensor 810 and holder 600.
[0215] Coil 120A may be connected to retainer 600. In one example, coil 120A may be disposed on the upper surface of retainer 600, but this disclosure is not limited thereto.
[0216] In one example, coil 120A may be disposed on retainer 600 to have a closed-loop shape. In one example, coil 120A may have a closed-loop shape wound around optical axis OA in a clockwise or counterclockwise direction, and may be wound or disposed on retainer 600.
[0217] In another embodiment, the coil may include at least one coil loop. In one example, the coil may include multiple coil units, each of which may be implemented in the form of coil loops. The number of coil loops may be the same as the number of magnets 130A, but this disclosure is not limited thereto.
[0218] Magnet 130A can face coil 120A or overlap with it in the direction of the optical axis.
[0219] The coil 120A disposed on the retainer 600 can be electrically connected to the second circuit board 805. Figure 4 The coil 120A shown can be electrically connected to the first circuit board 800 via the second circuit board 805 and the support member 220.
[0220] In one example Figure 4The retainer 600 shown may be provided with a conductive layer, conductor, or circuit pattern to conductively connect the coil 120A to the second circuit board 805. Alternatively, it may be... Figure 4 The holder 600 shown has a separate circuit board for electrically connecting the coil 120A to the second circuit board 805.
[0221] In another embodiment, coil 120A may be disposed on second circuit board 805 and may be directly connected to second circuit board 805.
[0222] Figure 5 This is a schematic cross-sectional view of camera module 200-3 according to yet another embodiment, and Figure 6a yes Figure 5 The diagram shows a schematic plan view of the first circuit board 800, the second circuit board 805, the image sensor 810, the holder 600, the filter 610, the coil 120B, and the magnet 130B.
[0223] Camera module 200-3 is Figure 1 The image shows a modified example of the camera module 200-1. A coil 120B may be disposed on a side plate 142 of the housing 140, while a magnet 130B may be disposed on a side surface (e.g., the outer surface) of the retainer 600.
[0224] In one example, coil 120B may face magnet 130B in a direction parallel to a straight line perpendicular to and passing through the optical axis OA, or overlap with magnet 130B.
[0225] Coil 120B and Figure 1 The only difference between the coils 120 shown is the placement of the coils in the housing 140, so the description of coil 120 and its related description can also be applied to coil 120B.
[0226] Magnet 130B may include a plurality of magnets 130-1 to 130-4, which are disposed on retainer 600 and spaced apart from each other.
[0227] The plurality of magnets 130-1 to 130-4 may be respectively disposed on one of the corresponding sides of the retainer 600.
[0228] Figure 6b yes Figure 6a The coil 120B shown is a modified embodiment 120C.
[0229] Figure 6a The coil 120B shown is formed as a single closed curve, such as a loop. However, the coil 120C shown... Figure 6bIt may include multiple coil units 120-1 to 120-4 corresponding to the multiple magnets 130-1 to 130-4. In one example, the multiple coil units 120-1 to 120-4 may be connected in series with each other and may receive a single drive signal.
[0230] The length of the coil unit (e.g., 120-1) in the transverse direction (e.g., the X-axis direction) may be longer than the length of the corresponding magnet 130-1 in the transverse direction, but this disclosure is not limited thereto. In another embodiment, the length of the coil unit (e.g., 120-1) in the transverse direction may be shorter than or equal to the length of the corresponding magnet 130-1 in the transverse direction.
[0231] The length of the coil unit (e.g., 120-1) in the longitudinal direction (e.g., the Y-axis direction) may be longer than the length of the corresponding magnet 130-1 in the longitudinal direction, but this disclosure is not limited thereto. In another embodiment, the length of the coil unit (e.g., 120-1) in the longitudinal direction may be shorter than or equal to the length of the corresponding magnet 130-1 in the longitudinal direction.
[0232] The length of the coil unit (e.g., 120-1) along the optical axis (e.g., the Z-axis direction) may be longer than the length of the corresponding magnet 130-1 along the optical axis, but this disclosure is not limited thereto. In another embodiment, the length of the coil unit (e.g., 120-1) along the optical axis may be shorter than or equal to the length of the corresponding magnet 130-1 along the optical axis.
[0233] Figure 7 This is a schematic cross-sectional view of camera module 200-4 according to yet another embodiment, and Figure 8 yes Figure 7 The diagram shows a schematic plan view of the first circuit board 800, the second circuit board 805, the image sensor 810, the holder 600, the filter 610, the coil 120D, and the magnet 130C.
[0234] Figure 7 and Figure 8 The camera module 200-4 shown can be Figure 5 The image shows a modified example of the camera module. (See Figure 7 and...) Figure 8 In, with Figure 5 The same reference numerals in the figures indicate the same parts, and their descriptions will be omitted or simplified.
[0235] like Figure 7 and Figure 8 As shown, magnet 130C can be disposed on side plate 142 of housing 140, while coil 120D can be disposed on side surface of holder 600. Figure 7The housing 140 shown may have grooves formed in its side plate 142 to allow the magnet 130C to be disposed therein, Figure 7 The retainer 600 shown may have a groove formed in its side surface to allow the coil 120D to be disposed therein.
[0236] Magnet 130C can face coil 120D or overlap with coil 120D in a direction parallel to a straight line perpendicular to and passing through the optical axis OA.
[0237] like Figure 7 and Figure 8 As shown, magnet 130C can be fixed to housing 140 to make it immovable, while coil 120D can be moved along the optical axis together with circuit board 805, image sensor 810 and holder 600.
[0238] Coil 120D may be coupled to retainer 600. In one example, coil 120D may be disposed on a side surface of retainer 600, but this disclosure is not limited thereto.
[0239] In one example, coil 120D may be disposed on a side surface of retainer 600 to have a closed-loop shape. In one example, coil 120D may have a closed-loop shape wound around optical axis OA in a clockwise or counterclockwise direction, and may be wound or disposed on a side surface of retainer 600.
[0240] In another embodiment, the coil may include at least one coil loop. In one example, the coil may include multiple coil units, and each of the multiple coil units may be implemented in the form of coil loops. The number of coil loops may be the same as the number of magnets 130C, but this disclosure is not limited thereto.
[0241] Magnet 130C may face or overlap coil 120D in the optical axis direction. In one example, magnet 130C may include a plurality of magnets 130-1A to 130-4A, which are disposed on side plate 142 of housing 140 and spaced apart from each other. Each of the plurality of magnets 130-1A to 130-4A may be disposed on a corresponding side of a plurality of sides of housing 140.
[0242] The coil 120D disposed on the retainer 600 can be electrically connected to the second circuit board 805. Figure 7 The coil 120D shown can be electrically connected to the first circuit board 800 via the second circuit board 805 and the support member 220.
[0243] In one example Figure 7The retainer 600 shown may be provided with a conductive layer, conductor, or circuit pattern to conductively connect the coil 120D to the second circuit board 805. Alternatively, it may be... Figure 7 The holder 600 shown is provided with a separate circuit board for electrically connecting the coil 120D to the second circuit board 805.
[0244] In another embodiment, the coil 120D may be disposed on the second circuit board 805 and may be directly connected to the second circuit board 805 in a conductive and physical manner.
[0245] Figure 9 This is a schematic cross-sectional view of a camera module 200-5 according to yet another embodiment. (Refer to...) Figure 9 The camera module 200-5 may also include an elastic member 150, which is connected to the housing 140 and the retainer 600.
[0246] One end of the elastic member 150 can be connected to the housing 140, while the other end of the elastic member 150 can be connected to the retainer 600. (Refer to...) Figure 9 One end of the elastic member 150 is connected to the side plate 142 of the housing 140, while the other end of the elastic member 150 is connected to the upper surface of the retainer 600. However, this disclosure is not limited thereto.
[0247] In another embodiment, one end of the elastic member 150 may be connected to the upper plate 141 or the side plate 142 of the housing 140. Alternatively, the other end of the elastic member 150 may be connected to the upper surface, side surface, or lower surface of the retainer 600, or may be connected to the second circuit board 805.
[0248] The elastic member 150 can elastically support the retainer 600 and the second circuit board 805 relative to the housing 140. The second circuit board 805 can be positioned spaced apart from the first circuit board 800 due to at least one of the elastic member 150 or the support member 220.
[0249] In one example, the resilient member 150 may include: a first connecting portion connected to the retainer 600; a second connecting portion connected to the housing 140; and a connecting portion that connects the first connecting portion and the second connecting portion to each other. The first connecting portion of the resilient member 150 may alternatively be referred to as the "first frame" or "inner portion," while the second connecting portion may alternatively be referred to as the "second frame" or "outer portion." In this case, the connecting portion may be bent or flexed at least once to form a pattern with a predetermined shape.
[0250] Additionally, the elastic member 150 may include multiple elastic units that are spaced apart from each other. For example, the elastic member 150 may be implemented as a leaf spring, but this disclosure is not limited thereto. The elastic member 150 may be implemented as a coil spring or a suspension wire.
[0251] The elastic member 150 can also be applied to the camera modules 200-1 to 200-4 according to the foregoing embodiments.
[0252] Figure 10 This is a schematic cross-sectional view of camera module 200-6 according to yet another embodiment, and Figure 11 yes Figure 10 The diagram shows a schematic plan view of the first circuit board 800, the second circuit board 805, the image sensor 810, the holder 600, the filter 610, the coil 120D, the magnet 130C, and the position sensor 170.
[0253] Reference Figure 10 and Figure 11 The camera module 200-6 may also include a position sensor 170. The position sensor 170 may be mounted on the retainer 600.
[0254] The position sensor 170, mounted on the retainer 600, can be moved along the optical axis by means of the electromagnetic force generated by the interaction between the coil 120D and the magnet 130C. The position sensor 170 can detect the magnetic field strength of the magnet 130C and output an output signal corresponding to the detection result.
[0255] For example, the position sensor 170 can be implemented as a Hall sensor or a driver integrated circuit (driver IC) containing a Hall sensor.
[0256] The position sensor 170 can be electrically connected to the second circuit board 805. Alternatively, the position sensor 170 can be electrically connected to the first circuit board 800.
[0257] In one example, position sensor 170 may be electrically connected to first circuit board 800 via second circuit board 805 and support member 220. Drive signals may be applied from first circuit board 800 to position sensor 170, and outputs from position sensor 170 may be transmitted to first circuit board 800.
[0258] When the position sensor 170 is implemented as a Hall sensor alone, the position sensor 170 may include two input terminals for receiving drive signals and two output terminals for outputting output signals. These two input terminals and two output terminals may be electrically connected to the second circuit board 805 and the first circuit board 800.
[0259] When the position sensor 170 is implemented as a driver integrated circuit, the position sensor 170 may include: a first terminal and a second terminal for receiving drive signals; and a third terminal and a fourth terminal for transmitting and receiving clock signals and data signals associated with the output from the Hall sensor, employing data communication using a protocol (e.g., I2C communication). In this case, the first to fourth terminals of the position sensor 170 may be conductively connected to the first circuit board 800 and the second circuit board 805. Additionally, in this case, the position sensor 170 may be conductively connected to the coil 120D, and drive signals may be directly applied to the coil 120D.
[0260] When the AF operation unit is in the initial position, at least a portion of the position sensor 170 may overlap with the magnet 130C in the horizontal direction, but this disclosure is not limited thereto. In another embodiment, the position sensor 170 and the magnet 130C may not overlap each other in the horizontal direction. This horizontal direction may be a direction perpendicular to the optical axis OA, or a direction parallel to a line perpendicular to and passing through the optical axis OA.
[0261] At least a portion of the position sensor 170 may overlap with the coil 120D in the vertical direction, but this disclosure is not limited thereto. In another embodiment, the position sensor 170 may not overlap with the coil 120D in the vertical direction. This vertical direction may be the optical axis (OA) direction or a direction perpendicular to the optical axis OA.
[0262] In one example, the position sensor 170 may be directly mounted on or on the second circuit board 805 and may be directly connected to the second circuit board 805 in a conductive manner.
[0263] In another embodiment, the retainer 600 may be provided with a conductive layer, conductor, or circuit pattern to conductively connect the position sensor 170 to the second circuit board 805. Alternatively, a separate circuit board may be provided on the retainer 600 to conductively connect the position sensor 170 to the second circuit board 805.
[0264] Reference Figure 10 Position sensor 170 and coil 120D are disposed on retainer 600, while magnet 130C is disposed in housing 140. However, this disclosure is not limited thereto.
[0265] In the above embodiments, the camera module 200-1 or 200-3 (where coil 120 or 120B is disposed in housing 140 and magnet 130 or 130B is disposed on holder 600) and the position sensor can be disposed in housing 140. In this case, the position sensor can be conductively connected to the first circuit board 800. The position sensor can detect the magnetic field strength of magnet 130 or 130B, which is moved along the optical axis together with holder 600, and can output a detection result corresponding to the output signal.
[0266] Alternatively, in one example, housing 140 may be provided with a conductive layer, conductor, or circuit pattern to electrically connect the position sensor to the first circuit board 800. Alternatively, a separate circuit board may be provided within housing 140 for electrically connecting the position sensor to the first circuit board 800.
[0267] That is, Figure 10 illustrates the application to Figure 7 The position sensor 170 shown in Embodiment 200-4 is not limited thereto. This position sensor can also be applied to other embodiments 200-1 to 200-3 and 200-5. In embodiments 200-1 to 200-6, the position sensor may be positioned vertically or horizontally opposite or facing the magnet described above.
[0268] Figure 12 This is a schematic cross-sectional view of camera module 200-7 according to yet another embodiment. Figure 13a yes Figure 12 The diagram shows a schematic plan view of the first circuit board 800, the second circuit board 805, the image sensor 810, the holder 600, the filter 610, the coil 120D, the magnet 130C, the position sensor 170, and the sensing magnet 180. Figure 13b An embodiment of the relative positional configuration between magnet 130C, sensing magnet 180, and position sensor is shown.
[0269] Reference Figure 12 , Figure 13a and Figure 13b The camera module 200-7 may also include a sensing magnet 180. The sensing magnet 180 may be disposed within the housing 140 to be separated from the magnet 140. For example, the sensing magnet 180 may be a unipolar magnetized magnet that includes one N pole and one S pole, or the sensing magnet may be a bipolar magnetized magnet that includes two N poles and two S poles.
[0270] In another embodiment, a sensing magnet 180 may be disposed on a holder 600, while a position sensor 170 may be disposed on a housing 140.
[0271] At least a portion of the sensing magnet 180 may overlap with the position sensor 170 in a direction perpendicular to the optical axis, but this disclosure is not limited thereto. In another embodiment, the two components may not overlap each other in a direction perpendicular to the optical axis.
[0272] The coil 120D and the sensing magnet 180 may overlap each other in the optical axis direction, but this disclosure is not limited thereto. In another embodiment, the two components may not overlap each other in the optical axis direction.
[0273] The coil 120D and the sensing magnet 180 may overlap each other in a direction perpendicular to the optical axis, but this disclosure is not limited thereto. In another embodiment, at least a portion of the sensing magnet 180 may overlap with the coil 120D in a direction perpendicular to the optical axis.
[0274] Using the electromagnetic force generated by the interaction between coil 120D and magnet 130C, position sensor 170 can be moved along the optical axis (OA) together with holder 600. Position sensor 170 can detect the magnetic field strength of sensing magnet 180 and output an output signal corresponding to the detection result. In one example, position sensor 170 can detect the magnetic field strength of magnet 130C and sensing magnet 180, and output an output signal corresponding to the detection result.
[0275] At least a portion of the position sensor 170 may face or overlap with the sensing magnet 180 in the vertical direction, but this disclosure is not limited thereto. In another embodiment, the position sensor and the sensing magnet may not overlap in the vertical direction.
[0276] like Figure 13b As shown, magnet 130C and sensing magnet 180 may not overlap in a direction perpendicular to the optical axis. Alternatively, magnet 130C and sensing magnet 180 may not overlap in the optical axis direction. In another embodiment, the magnet may overlap with the sensing magnet in a direction perpendicular to the optical axis. In yet another embodiment, the magnet may overlap with the sensing magnet in the optical axis direction.
[0277] exist Figure 12 and Figure 13a The text explains its application. Figure 7 and Figure 8The sensing magnet 180 shown in Embodiment 200-4 is not limited to this embodiment. The sensing magnet can also be applied to other embodiments 200-1 to 200-3 and 200-5. In one example, in embodiments 200-1 and 200-3, the sensing magnet can be disposed on the holder 600. Additionally, in embodiments 200-1 to 200-6, at least a portion of the position sensor and the sensing magnet may face or overlap each other in the vertical or horizontal direction, but this disclosure is not limited thereto. In another embodiment, the two components may not overlap each other in the vertical or horizontal direction.
[0278] Figure 14 This is a schematic cross-sectional view of a camera module 200-8 according to yet another embodiment.
[0279] Reference Figure 14 When the magnet 130B is placed on the holder 600 and the coil 120B is placed in the housing 140, the position sensor 170 can be placed on the first circuit board 800.
[0280] In one example, at least a portion of the position sensor 170 may face or overlap with the magnet 130B in the vertical direction, but this disclosure is not limited thereto. In another embodiment, the two components 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 connected to the first circuit board 800 in a conductive manner.
[0281] Figure 15a This is a schematic cross-sectional view of a camera module 200-9 according to yet another embodiment.
[0282] Reference Figure 15a In the camera module 200-9, the sensing magnet 180 can be disposed on the holder 600, and the position sensor 170 can be disposed on the first circuit board 800.
[0283] At least a portion of the position sensor 170 may face or overlap with the sensing magnet 180 in the vertical direction, but this disclosure is not limited thereto. In another embodiment, the two components may not face or overlap each other in the vertical direction.
[0284] In another embodiment, a position sensor may be disposed on the holder 600, and a sensing magnet may be disposed on the first circuit board 800.
[0285] Figure 15b This is a schematic cross-sectional view of a camera module 200-10 according to yet another embodiment. (Refer to...) Figure 15bThe coil 120-1 may be disposed on the upper surface of the second circuit board 805. In one 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 connected to the second circuit board 805. Alternatively, the coil 120-1 may be electrically connected to the second circuit board 805.
[0286] Alternatively, in another embodiment, the coil 120-1 may be formed in the form of a circuit pattern or wiring in the second circuit board 805.
[0287] In one example, coil 120-1 may be disposed in a region on the upper surface of the second circuit board 805, adjacent to retainer 600-1. Coil 120-1 may be configured to contact retainer 600-1, but this disclosure is not limited thereto. In another embodiment, coil 120-1 may be configured to be separated from retainer 600-1.
[0288] In another embodiment, the magnet 130 may be disposed on the upper surface of the second circuit board 805, while the coil may be disposed in the housing 140.
[0289] Figure 15c This is a schematic cross-sectional view of a camera module 200-10 according to yet another embodiment.
[0290] Reference Figure 15c The retainer 600-2 can be separated from the movable unit and can be fixed to the fixed unit.
[0291] In one example, the retainer 600-2 may be fixed to the lens barrel 410 or the housing 140.
[0292] In one example, the upper surface, upper end, or upper part of the retainer 600-2 may be coupled to or attached to the lens barrel 410 or the housing 140. The filter 610 may be disposed on the retainer 600-2.
[0293] like Figure 15c As shown, the holder 600-2 and the filter 610 may be included in the fixed unit. When the movable unit (e.g., the image sensor 810) is moved along the optical axis, the holder 600-2 and the filter 610 may be fixed in the optical axis direction or in a direction perpendicular to the optical axis, rather than being moved together with the movable unit.
[0294] Figure 14 The position sensor 170 shown can also be applied to Figures 1 to 1 3 and Figures 15a to 15c Other embodiments are shown.
[0295] Figure 15aThe sensing magnet 180 mounted on the holder 600 and the position sensor 170 mounted on the first circuit board 800 shown can also be applied to Figures 1 to 14 and Figures 15a to 15c Other embodiments are shown.
[0296] for Figure 15b and Figure 15c The description of the holder 600-1 or 600-2, the coil 120-1, and the filter 610 shown can also be applied to... Figures 1 to 14 Other embodiments are shown.
[0297] Figure 18 This is a stereoscopic camera module 1000 according to one embodiment. Figure 19 yes Figure 18 An exploded perspective view of the camera module 1000 shown. Figure 20 This is an exploded perspective view of the cover component 1310 and the optical path transformation unit 1320, while Figure 21 It is along Figure 20 The cross-sectional view of the cover member 1310 and the optical path transformation unit taken by line AB is shown.
[0298] Reference Figures 18 to 21 The camera module 1000 may include an optical path conversion unit 1320, a motion unit 1100, and an image sensor 1810.
[0299] The moving unit 1100 may also be referred to as a “lens-drive device”, “drive unit”, “voice coil motor (VCM)”, “actuator”, or “lens-moving device”.
[0300] The camera module 1000 may also include at least one of a lens module 1400, a cover member 1310, or a circuit board 1800.
[0301] The cover component 1310 can accommodate the optical path conversion unit 1320, the moving unit 1100, and the lens module 1400.
[0302] The cover member 1310 may include: an upper plate 1011A; a lower plate 1011B, positioned relative to the upper plate 1011A; and side plates 1011C to 1011F, disposed between the upper plate 1011A and the lower plate 1011B.
[0303] In one example, side panels 1011C to 1011F may be interconnected with upper panel 1011A and lower panel 1011B, and may include multiple side panels. In one example, cover member 1310 may include four side panels 1011C to 1011F, but this disclosure is not limited thereto.
[0304] The upper plate 1011A of the cover member 1310 may have a first opening 1311 formed therein to expose the first surface 1008A of the reflective member 1322.
[0305] In one example, the first surface 1008A of the reflective member 1322 may be located below the upper plate 1011A of the cover member 1310. In another example, the first surface 1008A of the reflective member 1322 may be configured to be separated from the inner surface of the upper plate 1011A of the cover member 1310.
[0306] In one example, the first surface 1008A of the reflective member 1322 may be positioned closer to the lower plate 1011B of the cover member 1310, rather than the inner surface of the upper plate 1011A of the cover member 1310.
[0307] Additionally, among the side plates of the cover member 1310, the first side plate 1011C may have a second opening 1312 formed therein, and the optical path conversion unit 1320 and the moving unit 1100 may be inserted into the cover member 1310 through the second opening 1312. In one example, the first side plate 1011C may be the side plate facing the moving unit 1100.
[0308] Additionally, a protrusion 1318 may be formed on one side of the upper plate 1011A of the cover member 1310 for connection to the base 1210, the protrusion being adjacent to the second opening 1312.
[0309] Additionally, a support portion 1315 may be formed on the inner side of the cover member 1310 for connection to the holder 1321 of the optical path conversion unit 1320.
[0310] In one example, the support 1315 may be disposed between the side plate 1011D and the lower plate 1011B.
[0311] In one example, the support portion 1315 may be formed to extend from the side plate 1011D, but this disclosure is not limited thereto. In one example, the support portion 1315 may include at least one bent or curved portion.
[0312] In one example, the support 1315 may include: a first portion 1315a, formed parallel to the upper plate 1011A; a second portion 1315b, formed parallel to the side plate 1011D; and a third portion 1315c, which connects the first portion 1315a and the second portion 1315b to each other. In one example, the third portion 1315c may be a bent or curved portion and may support a surface of the retainer 1321 (e.g., the lower surface 1020B).
[0313] Figure 18The cover member 1310 shown accommodates both the optical path conversion unit 1320 and the moving unit 1100, but this disclosure is not limited thereto. In another embodiment, the cover member may include: a first cover container (or a first cover) for accommodating the optical path conversion unit; and a second cover container (or a second cover) for accommodating the moving unit 1100.
[0314] In addition, such as Figure 18 As shown, a portion of the base 1210 of the moving unit 1100 and the circuit board 1800 are located outside the cover member 1310, but this disclosure is not limited thereto. In another embodiment, both the base 1210 and the circuit board 1800 may be disposed within the cover member.
[0315] Despite Figure 18 and Figure 19 Although not shown, the camera module 1000 may also include at least one of a connector, a motion sensor, or a controller disposed on the circuit board 1800.
[0316] Image sensor 1810 can receive an image contained in light, which is introduced into the image sensor through optical path conversion unit 1320 and lens module 1400, and the image sensor can convert the received image into an electrical signal.
[0317] In one example, image sensor 1810 may include image capture area 1805 (see reference). Figure 19 This is used to sense light passing through the lens module 1400. Here, the camera area 1805 (refer to...) Figure 19 It can be alternatively referred to as the effective area, light receiving area, or active area.
[0318] In one example, the image sensor 1810 may be a component in which light filtered by the light filter 1610 is introduced into the image sensor to form an image contained in the light.
[0319] The image sensor 1810 can be set or mounted on the circuit board 1800.
[0320] The circuit board 1800 may be provided with various circuits, components, and controllers to convert the image formed in the image sensor 1810 into electrical signals and transmit these electrical signals to external devices. Additionally, the circuit board 1800 may be provided with circuit patterns that are electrically connected to the image sensor and various components.
[0321] The camera module 1000 may further include a filter 1610 disposed between the lens module 1400 and the image sensor 1810. The filter 1610 may be mounted on or connected to the lower surface of the base 1210 of the moving unit 1100. A mounting portion 1500A, in which the filter 1610 is mounted or disposed, may be provided in the lower surface of the base 1210. The mounting portion 1500A may be formed as a recessed portion that is recessed downward in the lower surface of the base 1210.
[0322] In another embodiment, the "sensor base" in which the filter is placed or disposed may be positioned between the base 1210 and the circuit board 1800.
[0323] The optical path conversion unit 1320 may include a reflective member 1322.
[0324] The optical path conversion unit 1320 may also include a retainer 1321 for connecting, fixing or attaching the reflective member 1322 to the cover member 1310.
[0325] In another embodiment, the reflective member 1322 may be directly coupled, fixed, or attached to the cover member 1310.
[0326] The retainer 1321 may be disposed in the cover member 1310 and may be coupled, fixed or attached to the inner surface cover member 1310.
[0327] The retainer 1321 may include: an upper surface 1020A; a lower surface 1020B positioned relative to the upper surface 1020A; and side surfaces 1020C to 1020F disposed between the upper surface 1020A and the lower surface 1020B.
[0328] In one example, the upper surface 1020A and the lower surface 1020B can be parallel to each other.
[0329] In one example, the upper surface 1020A of the retainer 1321 may be an inclined surface, tilted at a predetermined angle relative to the upper plate 1011A of the cover member 1310. The interior angle K1 formed between the upper surface 1020A and the first side surface 1020C of the retainer 1321 may be an acute angle, but this disclosure is not limited thereto. In another embodiment, the interior angle formed between the two elements may be an obtuse angle or a right angle.
[0330] In one example, the first interior angle formed between the lower surface 1020B of the retainer 1321 and the first side surface 1020C can be an obtuse angle, while the second interior angle formed between the lower surface 1020B of the retainer 1321 and the second side surface 1020D can be an obtuse angle. In another embodiment, both the first and second interior angles can be acute or right angles. The second side surface 1020D can be a side surface that is configured to be opposite to the first side surface 1020C.
[0331] In one example, at least one of the first side surface 1020C, the lower surface 1020B, or the second side surface 1020D of the retainer 1321 may be coupled, fixed, or attached to the inner surface of the cover member 1310.
[0332] In one example, the first side surface 1020C of the retainer 1321 may face the inner surface of the lower plate 1011B of the cover member 1310 and may be coupled, fixed, or attached to the inner surface of the lower plate 1011B.
[0333] In one example, the second side surface 1020D of the retainer 1321 may face the inner surface of the second side plate 1011D of the cover member 1310 and may be coupled, fixed, or attached to the inner surface of the second side plate 1011D.
[0334] In one example, the lower surface 1020B of the retainer 1321 may face the support 1315 of the cover member 1310 and may be supported by the support 1315. In one example, the lower surface 1020B of the retainer 1321 may be coupled, fixed, or attached to the support 1315 of the member 1310.
[0335] In one example, the third side surface 1020E of the retainer 1321 may face the inner surface of the third side plate 1011E of the cover member 1310 and may be coupled, fixed, or attached to the inner surface of the third side plate 1011E.
[0336] In one example, the fourth side surface 1020F of the retainer 1321 may face the inner surface of the fourth side plate 1011F of the cover member 1310 and may be coupled, fixed, or attached to the inner surface of the fourth side plate 1011F.
[0337] The retainer 1321 may include a mounting portion 1021 for the reflective member 1322 to be disposed or mounted therein.
[0338] In one example, the placement portion 1021 may be formed in the upper surface 1020A of the retainer 1321.
[0339] In one example, the placement portion 1021 may be formed as a downwardly recessed shape in the upper surface 1020A of the retainer 1321, but this disclosure is not limited thereto. In another embodiment, the placement portion 1021 may be formed as a flat surface shape or as a protrusion extending from the upper surface of the retainer 1321.
[0340] In one example, the placement portion 1021 may include: a bottom surface 1021A that is stepped relative to the upper surface 1020A of the retainer 1321; and a side surface 1021B that connects the bottom surface 1021A and the upper surface 1020A to each other.
[0341] The retainer 1321 may contact the cover member 1300 of the moving unit 1100. In one example, the retainer 1321 may contact the upper plate 1302 of the cover member 1300 of the moving unit 1100.
[0342] In one example, the retainer 1321 may be coupled, fixed, or attached to the upper plate 1302 of the cover member 1300 of the movable unit 1100. In one example, an adhesive member may be provided between the retainer 1321 and the upper plate 1302 of the cover member 1300, and the two components may be interconnected.
[0343] In another embodiment, a first connecting portion may be formed on the retainer 1321, and a second connecting portion may be formed on the upper plate 1302 of the cover member 1300, and the first connecting portion and the second connecting portion may be interconnected. In one example, both the first connecting portion and the second connecting portion may be formed as a protrusion, a recess, a hole, or a boss shape.
[0344] In one example, a portion of the first side surface 1020C of the retainer 1321 may be coupled, secured, or attached to the upper plate 1302 of the cover member 1300. In one example, the edge portion 1020-1 (where the first side surface 1020C of the retainer 1321 meets the upper surface 1020A of the retainer 1321) may be coupled, secured, or attached to the upper plate 1302 of the cover member 1300.
[0345] In one example, retainer 1321 may be coupled, fixed, or attached to a region of the upper plate of cover member 1300, which is closer to the second side plate of cover member 1300 than to the first side plate of cover member 1300. In one example, the first side plate of cover member 1300 may be a side plate facing the side 1141-1 of housing 1140 (on which circuit board 1190 is disposed), while the second side plate may be a side plate positioned opposite to the first side plate.
[0346] At least a portion of the reflective member 1322 may be disposed in the mounting portion 1021 and may be connected, fixed, or attached to the mounting portion 1021. The retainer 1321 protects the reflective member 1322 from external impacts.
[0347] In one example, the third surface 1008C of the reflective member 1322 may be coupled, fixed, or attached to the bottom surface 1021A of the mounting portion 1021. The bottom surface 1021A may be an inclined surface that is tilted relative to the optical axis OA.
[0348] The light-emitting surface 1008B of the reflective member 1322 mounted on the retainer 1321 can be configured to face the lens module 1400. In one example, the light-emitting surface 1008B may face the image sensor 1810.
[0349] In one example, the light-emitting surface 1008B of the reflective member 1322 mounted on the retainer 1321 may be perpendicular to the optical axis, but this disclosure is not limited thereto.
[0350] The reflecting member 1322 may be a prism or a mirror, but this disclosure is not limited thereto. Any member may be used as long as it can change the optical path by reflecting or refracting light.
[0351] The reflective member 1322 may include: a first surface 1008A, which is an incident surface on which light is incident; and a second surface 1008B, which is a light emitting surface from which light is emitted.
[0352] The reflective member 1322 can reflect light entering it through the first surface 1008A so that the light is emitted through the second surface 1008B.
[0353] In one example, the reflecting member 1322 may be a right-angle prism or a mirror, which includes a first surface 1008A, a second surface 1008B, and a third surface 1008C disposed between the first surface 1008A and the second surface 1008B. The first surface 1008A may alternatively be referred to as the "incident surface", the second surface 1008B may alternatively be referred to as the "emitting surface", and the third surface 1008C may alternatively be referred to as the "reflecting surface".
[0354] In one example, the interior angle between the first surface 1008A and the second surface 1008B can be a right angle. Alternatively, in one example, the first interior angle θ1 between the first surface 1008A and the third surface 1008C, and the second interior angle θ2 between the second surface 1008B and the third surface 1008C, can both be between 30 degrees and 60 degrees. In one example, both the first interior angle θ1 and the second interior angle θ2 can be 45 degrees, but this disclosure is not limited thereto.
[0355] In one example, the reflective member 1322 may further include: a fourth surface facing the inner surface of the third side plate 1011E of the cover member 1310; and a fifth surface facing the inner surface of the fourth side plate 1011F of the cover member 1310. The fourth and fifth surfaces of the reflective member 1322 may be configured to face each other and to contact the first surfaces 1008A to the third surfaces 1008C.
[0356] In one example, the first surface 1008A to the third surface 1008C can all have a quadrilateral shape, while the fourth and fifth surfaces can both have a triangular shape.
[0357] The reflective member 1322 can be fixed to the cover member 1310 and may or may not move in the direction of the optical axis. Furthermore, the reflective member 1322 may or may not move in a direction perpendicular to the optical axis OA.
[0358] Furthermore, the reflective member 1322 can be rotated without revolving around a first axis parallel to the optical axis OA. Additionally, the reflective member 1322 can be rotated without revolving around a second axis perpendicular to the optical axis OA.
[0359] The lens module 1400 may be mounted on the image sensor 1810 and may be coupled to the spool 1110 of the moving unit 1100. The lens module 1400 may alternatively be referred to as a "lens unit" or "lens assembly".
[0360] In one example, the lens module 1400 may include: a lens barrel coupled to the spool 1110; and a lens array disposed within the lens barrel. The lens array may include at least one lens.
[0361] The lens barrel may have a cylindrical or polyhedral structure, and its cross-section taken along a direction perpendicular to the optical axis may be circular, elliptical, or polygonal, but this disclosure is not limited thereto. In one example, the lens barrel may have threads or helical grooves formed in its outer surface for connection to the spool 1110, and the spool 1110 may have threads or helical grooves formed therein for connection to the lens barrel. In another embodiment, the threads or helical grooves of both the lens barrel and the spool may be omitted.
[0362] The moving unit 1100 may be coupled to the lens module 1400 and may move the lens module 1400 along the optical axis. In one example, the moving unit 1100 may move at least one of the plurality of lenses included in the lens module 1400 along the optical axis. In another example, the moving unit 1100 may move all of the plurality of lenses along the optical axis. Alternatively, the moving unit 1100 may move some of the lenses adjacent to the second surface 1008B of the reflecting member 1322.
[0363] Figure 22 This is an exploded perspective view of the moving unit 1100 according to this embodiment. Figure 23 This is a perspective view without the moving unit 1100 of the cover component 1300. Figure 24a yes Figure 22 The three-dimensional view of the spool 1110, sensing magnet 1180, and balancing magnet 1185 shown is presented. Figure 24b It is shown Figure 22 The view shown illustrates the connection between the spool 1110, coil 1120, sensing magnet 1180, and balancing magnet 1185. Figure 25a yes Figure 22 The perspective view of the housing 1140, position sensor 1170, and capacitor 1195 shown is presented. Figure 25b This is a perspective view of the housing 1140 to which the first magnet 1130-1 and the second magnet 1130-2, the circuit board 1190, and the position sensor 1170 are connected. Figure 26 This is a view showing the connection between the lower elastic member 1160, the circuit board 1190, the position sensor 1170, and the capacitor 1195. Figure 27 This is a perspective view of the base 1210, the lower elastic member 1160, and the circuit board 1190. Figure 28 It is cut along line CD. Figure 23 The cross-sectional view of the moving unit 1100 shown is shown. Figure 29 It is intercepted along line EF. Figure 23 Cross-sectional view of the moving unit 1100 shown.
[0364] Reference Figures 22 to 29 The moving unit 1100 may include a spool 1110, a coil 1120, a magnet 1130, and a housing 1140.
[0365] The moving unit 1100 may also include an upper elastic member 1150 and a lower elastic member 1160.
[0366] The moving unit 1100 may further include a position sensor 1170 for AF feedback operation. The moving unit 1100 may also include a sensing magnet 1180 for AF feedback operation. The moving unit 1100 may further include a balancing magnet 1185. Additionally, the moving unit 1100 may also include a circuit board 1190 electrically connected to the position sensor 1170. In another embodiment, at least one of the position sensor 1170, sensing magnet 1180, balancing magnet 1185, or circuit board 1190 may be omitted.
[0367] Additionally, the moving unit 1100 may also include a capacitor 1195.
[0368] Additionally, the moving unit 1100 may include at least one of the cover member 1300 or the base 1210.
[0369] First, we will describe spool 1110.
[0370] The spool 1110 may be configured to mount the lens module 1400 and may be disposed within the housing 1140. Due to the electromagnetic interaction between the coil 1120 and the magnet 1130, the spool 1110 may be moved along the optical axis (OA) or a first direction (e.g., the Z-axis).
[0371] The spool 1110 may have an opening or cavity formed therein for connection to the lens module 1400. In one example, the opening in the spool 1110 may be a through hole, and its shape may be circular, elliptical, or polygonal. However, this disclosure is not limited thereto.
[0372] The spool 1110 may include: a first connecting portion 1113 disposed on the upper part, upper surface, or upper end of the spool for connection and fixation to the first inner frame 1151 of the upper elastic member 1150; and a second connecting portion 1117 disposed on the lower part, lower surface, or lower end of the spool for connection and fixation to the second inner frame 1161 of the lower elastic member 1160.
[0373] Both the first connecting portion 1113 and the second connecting portion 1117 may have a protruding shape, but this disclosure is not limited thereto. In another embodiment, both the first connecting portion 1113 and the second connecting portion 1117 may have a recessed shape or a flat surface shape.
[0374] The spool 1110 may include a first escape recess 1112a, which is formed in a region on the upper surface of the spool, the region corresponding to or aligned with the first frame connection portion 1153 of the upper elastic member 1150 in the optical axis (OA) direction. The first escape recess 1112a may have a downward shape in the upper surface of the spool 1110.
[0375] Additionally, the spool 1110 may include a second escape recess 1112b, which is formed in a region on the lower surface of the spool, the region corresponding to or aligned with the second frame connection portion 1163 of the lower elastic member 1160 in the optical axis (OA) direction. The second escape recess 1112b may have a shape that is lowered in the lower surface of the spool 1110.
[0376] By means of the first escape recess 1112a and the second escape recess 1112b in the spool 1110, when the spool 1110 moves in the first direction, spatial interference between the spool 1110 and each of the first frame connection portion 1153 and the second frame connection portion 1163 can be avoided, and therefore, the frame connection portions 1153 and 1163 can be easily elastically deformed.
[0377] The spool 1110 may include multiple side surfaces or outer surfaces.
[0378] In one example, the spool 1110 may include sides 1110b1 to 1110b4 and corners 1110c1 to 1110c4.
[0379] In one example, the first corner portion 1110c1 to the fourth corner portion 1110c4 of the spool 1110 may be disposed between two adjacent sides of the spool 1110. The side surfaces or outer surfaces of the first corner portion 1110c1 to the fourth corner portion 1110c4 of the spool 1110 may be referred to as the "first to fourth side surfaces" or "first to fourth outer surfaces" of the spool 1110.
[0380] The bobbin 1110 may have at least one groove 1105 formed in its side or outer surface to allow the coil 1120 to be disposed or placed in the groove.
[0381] The coil 1120 may be disposed or placed in the groove 1105 in the bobbin 1110, or may be wound directly around the groove 1105 in the bobbin 1110, so as to rotate about the optical axis OA in a clockwise or counterclockwise direction. However, this disclosure is not limited thereto.
[0382] The shape and number of slots 1105 in the bobbin 1110 can correspond to the shape and number of coils disposed on the outer surface of the bobbin 1110. In another embodiment, the bobbin 1110 may not have slots for housing the coils therein, and the coils may be directly wound and fixed to the outer surface of the bobbin 1110 without slots. The bobbin may include winding protrusions around which the coils are wound.
[0383] Additionally, the spool 1110 may have a recess 1180a formed in the outer surface of one side (e.g., 1110b1) of the spool to allow the sensing magnet 1180 to be disposed therein. In one example, the recess 1180a may include an opening in the lower surface of the spool 1110 to facilitate mounting the sensing magnet 1180 therein. Alternatively, the recess 1180a may be formed in the bottom of a groove 1105 for accommodating a coil, but this disclosure is not limited thereto.
[0384] Additionally, the spool 1110 may have a recess (not shown) formed in the outer surface of the side portion 1110b2, which is configured to be opposite to the side portion (e.g., 1110b1) in which the recess 1180a is formed, so as to allow the balancing magnet 1185 to be placed therein.
[0385] The spool 1110 may include: a first stop (not shown) extending upward from the upper surface of the spool; and a second stop (not shown) extending downward from the lower surface of the spool.
[0386] When the spool 1110, which moves along the first direction for autofocus, moves beyond a predetermined range, the first and second stops of the spool 1110 can prevent the upper or lower surface of the spool 1110 from directly colliding with the inner wall of the cover member 1300 or the upper surface of the base 1210 due to external impacts or the like.
[0387] The spool 1110 may have a recess 1119 formed in its upper surface at a position corresponding to the protrusion 1305 of the cover member 1300. In one example, the recess 1119 may be formed in a first escape recess 1112a, but this disclosure is not limited thereto.
[0388] Coil 1120 may be disposed on spool 1110. In one example, coil 1120 may be coupled to spool 1110. In another example, coil 1120 may be disposed on the outer surface of spool 1110.
[0389] In one example, the coil 1120 may be positioned within or wound around a groove 1105 in the spindle 1110.
[0390] The coil 1120 may be a drive coil that interacts electromagnetically with the magnet 1130 disposed in the housing 1140.
[0391] A drive signal (such as drive current or voltage) may be applied to coil 1120 to generate an electromagnetic force due to interaction with magnet 1130.
[0392] The drive signal applied to coil 1120 may be a DC signal, but this disclosure is not limited thereto. The drive signal may be an AC signal, or may include both DC and AC signals.
[0393] The AF operating unit can move along the first direction due to the electromagnetic force generated by the interaction between the coil 1120 and the magnet 1130.
[0394] The strength and / or direction of the electromagnetic force generated by the interaction between the coil 1120 and the magnet 1130 can be controlled by controlling the strength and / or polarity (e.g., current direction) of the drive signal applied to the coil 1120, thereby allowing the movement of the AF operation unit along a first direction to be controlled, and thus enabling the autofocus function to be performed.
[0395] The AF operating unit can perform unidirectional or bidirectional drive by utilizing the electromagnetic force generated by the interaction between the coil 1120 and the magnet 1130.
[0396] Here, unidirectional drive refers to the movement of the AF operation unit in one direction, such as the upward direction (e.g., the +Z axis direction), based on the initial position of the AF operation unit.
[0397] In addition, bidirectional drive refers to the movement of the AF operation unit in two directions based on the initial position of the AF operation unit, such as the upward direction (e.g., the +Z axis direction) or the downward direction (e.g., the –Z axis direction).
[0398] For example, the initial position of the AF operating unit (e.g., spool 1110) can be the original position of the AF operating unit (e.g., spool) when no power or drive signal is applied to the coil 1120, or the position of the AF operating unit caused by the elastic deformation of the upper elastic member 1150 and the lower elastic member 1160 solely due to the weight of the AF operating unit.
[0399] Additionally, the initial position of the AF operation unit (e.g., spool 1110) can be such that the AF operation unit is located when gravity acts in the direction from spool 1110 toward base 1210, or when gravity acts in the direction from base 1210 toward spool 1110.
[0400] The AF operation unit may include: a spool 1110 elastically supported by an upper elastic member 1150 and a lower elastic member 1160; and a plurality of components mounted to the spool 1110 for movement with the spool 1110. In one example, the AF operation unit may include at least one of the spool 1110, a coil 1120, a sensing magnet 1180, or a balancing magnet 1185. When a lens module 1400 is installed, the AF operation unit may include the lens module 1400.
[0401] The coil 1120 can be mounted on the spool 1110 to have a closed-loop shape (e.g., a ring).
[0402] In one example, the coil 1120 may be formed as a closed loop wound around the optical axis in a clockwise or counterclockwise direction, and may be wound or disposed on the outer surface of the spool 1110.
[0403] In another embodiment, the coil 1120 may be formed in the shape of a coil loop, which is arranged or wound in a clockwise or counterclockwise direction around an axis perpendicular to the optical axis. The number of coil loops may be the same as the number of magnets 1130, but this disclosure is not limited thereto. In one example, in this embodiment, the coil 1120 may include a first coil unit facing the first magnet 1130-1 and a second coil unit facing the second magnet 1130-2. In this case, the first coil unit may be disposed on the side of the spool 1110 facing the first magnet 1130-1, and the second coil unit may be disposed on the side of the spool 1110 facing the second magnet 1130-2.
[0404] The coil 1120 can be electrically connected to at least one of the upper elastic member 1150 or the lower elastic member 1160, and can be electrically connected to the circuit board 1190 via the upper elastic member 1150 or the lower elastic member 1160.
[0405] In one example, the coil 1120 may be connected to the lower elastic units 1160-1, 1160-2 of the lower elastic member 1160, or to two of the lower elastic units of the lower elastic member, by means of solder or conductive adhesive, but this disclosure is not limited thereto.
[0406] In one example, when the AF operation unit (e.g., spool 1110) is in the initial position, the coil 1120 set on the spool 1110 can overlap with the magnet 1130 in a direction passing through and perpendicular to the optical axis.
[0407] In another example, when the AF operation unit (e.g., spool 1110) is in the initial position, the coil 1120 disposed on the spool 1110 may overlap with the position sensor 1170 in a direction passing through and perpendicular to the optical axis, but this disclosure is not limited thereto. In another embodiment, the two components may not overlap.
[0408] The following describes housing 1140.
[0409] The housing 1140 can accommodate the spool 1110 (on which the coil 1120 and the sensing magnet 1180 are mounted) and can support the magnet 1130, the circuit board 1190, the position sensor 1170 and the capacitor 1195.
[0410] Reference Figure 25a and Figure 25b The housing 1140 is disposed in the cover member 1300. The housing 1140 may be cylindrical with an opening to accommodate the spool 1110 therein.
[0411] In one example, housing 1140 may include multiple sides (e.g., 1141-1 to 1141-4) and multiple corners (e.g., 1142-1 to 1142-4) to form openings. Here, the corners of housing 1140 (e.g., 1142-1 to 1142-4) may alternatively be referred to as “support portions” of housing 1140.
[0412] In one example, housing 1140 may include sides (e.g., 1141-1 to 1141-4) and corners (e.g., 1142-1 to 1142-4) to form openings in a polygonal (e.g., quadrilateral or octagonal) or circular (or elliptical) shape.
[0413] The housing 1140 may include a first side portion 1141-1 and a second side portion 1141-2 facing each other, and a third side portion 1141-3 and a fourth side portion 1141-4 facing each other. In addition, the housing 1140 may include a first corner portion 1142-1 and a fourth corner portion 1142-4 facing each other, and a second corner portion 1142-2 and a third corner portion 1142-3 facing each other.
[0414] The first side portion 1141-1 to the fourth side portion 1141-4 of the housing 1140 can all be configured as a corresponding side plate of the side plate 303 parallel to the cover member 1300.
[0415] The first side portion 1141-1 to the fourth side portion 1141-4 of the housing 1140 can each correspond to any one of the side portions 1110b1 to 1110b4 of the spool 1110, and the first corner portion 1142-1 to the fourth corner portion 1142-4 of the housing 1140 can each correspond to any one of the first corner portion 1110c1 to the fourth corner portion 1110c4 of the spool 1110.
[0416] The inner surface of each corner 1142-1 to 1142-4 of the housing 1140 may be a flat surface, a chamfered surface, or a curved surface.
[0417] The housing 1140 may have mounting portions 1141a and 1141b formed in the sides 1141-3 and 1141-4 of the housing 1140 to allow the magnet 1130 to be mounted therein. The number of mounting portions 1141a and 1141b formed in the sides of the housing 1140 may be the same as the number of magnets 1130-1 and 1130-2.
[0418] Figure 25a The mounting portions 1141a and 1141b shown are in the shape of openings or through holes penetrating each side portion 1141-3 and 1141-4 of the housing 1140, but this disclosure is not limited thereto. In another embodiment, the mounting portion may be in the shape of a recess or a groove.
[0419] The housing 1140 may include a support portion 1018, which is formed adjacent to the mounting portions 1141a, 1141b to support a first surface of the magnet 130 facing the coil 1120.
[0420] In one example, the support portion 1018 may be positioned adjacent to the inner surface of the housing 1140 and may protrude horizontally from the side surfaces of the mounting portions 1141a, 1141b. Alternatively, in one example, the support portion 1018 may include a tapered portion or an inclined surface. In another embodiment, the housing 1140 may not include the support portion 1018.
[0421] To prevent the housing 1140 from directly colliding with the inner surface of the upper plate 1302 of the cover member 1300, the housing 1140 may include a stop 1143 formed on its upper part, upper surface, or upper end. Here, the stop 1143 may alternatively be referred to as a "boss" or "protrusion".
[0422] The housing 1140 may include at least one first connecting portion 1144 formed thereon on its upper portion, upper surface, or upper end for connection to a hole 1152a in the first outer frame 1152 of the upper elastic member 1150. Although the first connecting portion 1144 of the housing 1140 is... Figure 25a The portion is illustrated as having a protruding shape, but this disclosure is not limited thereto. In another embodiment, the first connecting portion of the housing may have a recessed shape or a flat surface shape.
[0423] Additionally, the housing 1140 may include at least one second connecting portion 1147 formed on its upper and lower portions, lower surface, or lower end for connecting to a hole 1162a in the second outer frame 1162 of the lower elastic member 1160. Although the second connecting portion 1147 is in Figure 25b The portion is illustrated as having a protruding shape, but this disclosure is not limited thereto. In another embodiment, the second connecting portion may have a recessed shape or a flat surface shape.
[0424] Although the first connecting part 1144 and the second connecting part 1147 are in Figure 25a and Figure 25b The first connecting portion and the second connecting portion are illustrated as being disposed on at least one of the corner portions 1142-1 to 1142-4 of the housing 1140, but this disclosure is not limited thereto. In another embodiment, the first connecting portion and the second connecting portion may be disposed on at least one of the side portions 1141-1 to 1141-4 and the corner portions 1142-1 to 1142-4 of the housing 1140.
[0425] To prevent the lower surface or bottom of housing 1140 from colliding with base 1210, which will be described later, housing 1140 may include at least one stop (not shown) extending from its lower part, lower surface, or lower end.
[0426] A guide recess 1148 corresponding to the protrusion 1216 of the base 1210 may be formed in the lower part, lower surface, or lower end of at least one of the first corner portion 1142-1 to the fourth corner portion 1142-4 of the housing 1140.
[0427] In one example, the guide recess 1148 in the housing 1140 and the protrusion 1216 of the base 1210 can be connected to each other by means of an adhesive member, thereby allowing the housing 1140 to be attached to the base 1210.
[0428] The housing 1140 may include at least one escape recess 1015a formed in its upper part, upper surface, or at the upper end of at least one of the first side portions 1141-1 to the fourth side portions 1141-4, to avoid spatial interference with the connection between the first frame connection portion 1153 of the upper elastic member 1150 and the first outer frame 1152.
[0429] Additionally, the housing 1140 may include at least one escape recess 1016a formed thereon in its lower portion, lower surface, or at the lower end of at least one of the first corner portions 1142-1 to the fourth corner portions 1142-4, to avoid spatial interference between the connection portion of the second frame connection portion 1163 of the lower elastic member 1160 and the connection portion of the second outer frame 1162.
[0430] In one example, guide protrusions 1144a may be formed on each corner 1142-1 to 1142-4 of the housing 1140 to guide the first frame connection 1153 of the upper elastic member 1150. In one example, a damper (not shown) may be provided between the guide protrusions 1144a and the first frame connection 1153.
[0431] The housing 1140 may have a structure (e.g., a protrusion or recess) formed on any side 1141-1 for connection to the circuit board 1190.
[0432] In one example, housing 1140 may include a recess 1025a formed in the outer surface of any side 1141-1 to allow circuit board 1190 to be disposed therein. Recess 1025a may have the same or the same shape as circuit board 1190.
[0433] In one example, the circuit board 1190 may be attached to the side 1141-1 (or recess 1025a) of the housing 1140 by means of an adhesive or the like.
[0434] Additionally, the housing 1140 may include a first mounting portion 1017a formed in the side portion 1141-1 to allow the position sensor 1170 to be mounted or disposed therein. Additionally, the housing 1140 may include a second mounting portion 1017b formed in the corner portion 1142-1 to allow the capacitor 1195 to be mounted or disposed therein.
[0435] The first mounting portion 1017a and the second mounting portion 1017b of the housing 1140 may be formed in the recess 1025a in the housing 1140 so as to be separated from each other.
[0436] like Figure 25a As shown, the first mounting portion 1017a may have an opening or through-hole shape that penetrates the side portion 1141-1 of the housing 1140 to prevent the housing from intervening between the sensing magnet 1180 and the position sensor 1170, thereby increasing the output of the position sensor 1170 and improving the sensitivity of the position sensor 1170. In another embodiment, the first mounting portion may be recessed.
[0437] The second mounting portion 1017b may be a recessed shape that is lowered in the outer surface of the corner 1142-1 of the housing 1140, rather than a through-hole shape. In another embodiment, the second mounting portion 1017b may be an open shape or a through-hole shape.
[0438] In one example, the first mounting portion 1017a of the housing 1140 may have a shape corresponding to or consistent with the shape of the position sensor 1170, but this disclosure is not limited thereto.
[0439] The second mounting portion 1017b of the housing 1140 may have a shape that corresponds to or is consistent with the shape of the capacitor 1195, but this disclosure is not limited thereto.
[0440] Magnet 1130 can be a driving magnet that generates electromagnetic force due to its interaction with coil 1120 and uses this electromagnetic force to move spool 1110.
[0441] The magnet 1130 may be disposed within or attached to the housing 1140.
[0442] In one example, magnet 1130 may include a plurality of magnets 1130-1 and 1130-2, which are spaced apart from each other. In one example, magnet 1130 may include a first magnet 1130-1 and a second magnet 1130-2, which are disposed on two opposite sides 1141-3, 1141-4 of housing 1140. In another embodiment, magnets may include four magnets disposed on sides 1141-1 to 1141-4 of housing 1140.
[0443] In another embodiment, these magnets may be disposed on at least two of the corners 1142-1 to 1142-4 of the housing 1140.
[0444] Magnet 1130 can be a monopole magnetized magnet having two distinct magnetic poles and a naturally formed interface between the different magnetic poles. In one example, the first magnet 1130-1 and the second magnet 1130-2 can be monopole magnetized magnets configured such that their first surface facing coil 1120 is the N pole, and their second surface, located opposite the first surface, is the S pole, but this disclosure is not limited thereto. The positions of the N pole and the S pole can be interchanged. In another embodiment, magnet 1130 can be a bipole magnetized magnet divided into two parts along a direction perpendicular to the optical axis to increase the electromagnetic force.
[0445] When the magnet 1130 is a bipolar magnetized magnet, the magnet 1130 may include a first magnet portion, a second magnet portion, and a partition wall disposed between the first magnet portion and the second magnet portion.
[0446] The first magnetic portion may include an N pole, a S pole, and a first interface between the N pole and the S pole. In this case, the first interface may be a portion comprising a substantially non-magnetic (and therefore almost non-polar) section, and this portion is naturally formed to form a magnet consisting of an N pole and an S pole.
[0447] The second magnet portion may include an N pole, a S pole, and a second interface between the N pole and the S pole. In this case, the second interface may be a portion comprising a substantially non-magnetic (and therefore almost non-polar) section, and this portion is naturally formed to form a magnet consisting of an N pole and an S pole.
[0448] The separator can be a section that separates or isolates the first magnetic section from the second magnetic section, and is substantially non-magnetic (and therefore almost non-polar). For example, the separator can be a non-magnetic material or air. For example, the separator can be referred to as a "neutral region" or "neutral area".
[0449] The partition wall can be an artificially formed portion when the first magnet portion and the second magnet portion are magnetized, and the width of the partition wall can be greater than the width of each of the first interface and the second interface. Here, the width of the partition wall can be the length of the partition wall along the direction from the first magnet portion toward the second magnet portion.
[0450] In one example, the N pole of the first magnet portion and the S pole of the second magnet portion may be positioned facing the coil 1120, but this disclosure is not limited thereto. The positions of the two magnetic poles may be interchanged.
[0451] The sensing magnet 1180 can be mounted on the spindle 1110.
[0452] In one example, a sensing magnet 1180 may be disposed on the outer surface of the linear shaft 1110 facing or opposite to the position sensor 1170, while a balancing magnet 1185 may be disposed on another outer surface of the linear shaft 1110, located opposite to the outer surface of the linear shaft 1110 on which the sensing magnet 1180 is disposed. The sensing magnet 1180 may have a polyhedral shape, such as a hexahedral shape.
[0453] The sensing magnet 1180 (or balancing magnet 1185) may overlap with the coil 1120 in a direction parallel to and perpendicular to the optical axis, but this disclosure is not limited thereto. In another embodiment, the two components may not overlap.
[0454] Alternatively, the sensing magnet 1180 (or balancing magnet 1185) may be located inside the coil 1120. Here, the location inside the coil 1120 may be closer to the center of the spool 1110 than to a specific location within the coil 1120. That is, the coil 1120 may be located outside the sensing magnet 1180 and the balancing magnet 1185, thereby increasing the electromagnetic force between the coil 1120 and the first magnet 1130-1 and the second magnet 1130-2.
[0455] Both the sensing magnet 1180 and the balancing magnet 1185 can be unipolar magnets, configured such that their upper surface is the N pole and their lower surface is the S pole, but this disclosure is not limited thereto. The positions of these two magnetic poles can be interchanged.
[0456] In one example, both the sensing magnet 1180 and the balancing magnet 1185 can be configured such that the interface between the N pole and the S pole is parallel to a direction perpendicular to the optical axis, but this disclosure is not limited thereto. Alternatively, in another embodiment, the interface between the N pole and the S pole may be parallel to the optical axis.
[0457] Alternatively, in another embodiment, both the sensing magnet 1180 and the balancing magnet 1185 may be bipolar magnets.
[0458] The electromagnetic force generated by the interaction between the coil 1120 and the magnet 1130 allows the sensing magnet 1180 to be moved along the optical axis (OA) direction together with the spool 1110. The position sensor 1170 can detect the strength of the magnetic field of the sensing magnet 1180 moving along the optical axis direction and output an output signal corresponding to the detection result.
[0459] In one example, based on the output signal from the position sensor 1170, the controller 1830 of the camera module 2000-1 or the controller 780 of the terminal 200A can detect the displacement of the spool 1110 along the optical axis.
[0460] The balancing magnet 1185 can be used to eliminate the influence of the magnetic field of the sensing magnet 1180 on the coil 1120 and to balance the weight of the AF operation unit.
[0461] When the operating unit (e.g., spool 1110) is in the initial position, at least a portion of the position sensor 1170 and at least a portion of the sensing magnet 1180 may overlap each other in a direction parallel to a straight line passing through and perpendicular to the optical axis, but this disclosure is not limited thereto. In another embodiment, the two components may not overlap each other.
[0462] Circuit board 1190 and position sensor 1170 are housed in housing 1140.
[0463] In one example, circuit board 1190 and position sensor 1170 may be mounted on either side 11411-1 of housing 1140.
[0464] In one example, the circuit board 1190 may be disposed within a recess 1025a formed in a side portion 1141-1 of the housing 1140. At least a portion of the first surface 1019a of the circuit board 1190 may contact the recess 1025a in the housing 1140.
[0465] The position sensor 1170 can be implemented as a Hall sensor alone, or it can be implemented as a driver integrated circuit that includes a Hall sensor.
[0466] When the position sensor 1170 is a Hall sensor, the position sensor 1170 may include: two input terminals for receiving power or drive signals and two output terminals for outputting output signals.
[0467] When the position sensor 1170 is a driver integrated circuit, the position sensor 1170 may include first to sixth terminals.
[0468] The first and second terminals of the position sensor 1170 can be used to receive drive signals. The third and fourth terminals of the position sensor 1170 can be used to transmit and receive clock signals and data signals associated with the output from the Hall sensor, which employs data communication using a protocol (e.g., I2C communication). Additionally, the fifth and sixth terminals of the position sensor 1170 can be used to apply drive signals to the coil 1120.
[0469] Circuit board 1190 can be electrically connected to position sensor 1170. Circuit board 1190 can be electrically connected to coil 1120.
[0470] In one example, circuit board 1190 may include a plurality of terminals B1 to B6 for conductive connection to an external device. In one example, position sensor 1170 may be conductively connected to terminals B1 to B6 of circuit board 1190.
[0471] In one example, when the position sensor 1170 is a driver integrated circuit, the first to fourth terminals of the position sensor 1170 can be conductively connected to a corresponding terminal among the first to fourth terminals (e.g., B1 to B4) of the circuit board 1190. Additionally, the coil 1120 can be conductively connected to the fifth and sixth terminals of the position sensor 1170.
[0472] The coil 1120 can be electrically connected to the circuit board 1190 via at least one of the upper elastic member 1150 or the lower elastic member 1160.
[0473] In one example, circuit board 1190 may be electrically connected to a first lower elastic unit 1160-1 and a second lower elastic unit 1160-2. Circuit board 1190 may include terminals 1091 and 1092 for receiving drive signals from position sensor 1170 for driving coil 1120. In one example, coil 1120 may be electrically connected to terminals 1091 and 1092 of circuit board via the first lower elastic unit 1160-1 and the second lower elastic unit 1160-2, and terminals 1091 and 1092 may be electrically connected to a fifth and a sixth terminal of position sensor 1170.
[0474] When the position sensor 1170 is a Hall sensor, both input terminals and both output terminals of the position sensor 1170 can be conductively connected to a corresponding terminal among the first to fourth terminals (e.g., B1 to B4) of the circuit board 1190. The coil 1120 can be conductively connected to the fifth and sixth terminals (e.g., B5 and B6) of the circuit board 1190. The coil 1120 can be conductively connected to the fifth and sixth terminals (e.g., B5 and B6) of the circuit board 1190 via at least one of the upper elastic member 1150 or the lower elastic member 1160. In one example, the coil 1120 can be conductively connected to the fifth and sixth terminals (e.g., B5 and B6) of the circuit board 1190 via a first lower elastic unit 1160-1 and a second lower elastic unit 1160-2.
[0475] For example, circuit board 1190 can be a printed circuit board or an FPCB.
[0476] In one example, terminals 1091 and 1092 may be formed on the first surface 1019a of the circuit board 1190, while terminals B1 to B6 may be formed on the second surface 1019b of the circuit board 1190.
[0477] In one example, the plurality of terminals B1 to B6 may be arranged in a straight line at the lower end of the second surface 1019b of the circuit board 1190, but this disclosure is not limited thereto. In this case, the second surface 1019b of the circuit board 1190 may be the surface located at a position 1019a opposite to the first surface of the circuit board 1190.
[0478] The circuit board 1190 may include circuit patterns or wiring for electrically connecting the position sensor 190 to terminals 1091, 1092 and B1 to B6.
[0479] The position sensor 1170 may be mounted or disposed on the first surface 1019a of the circuit board 1190. The position sensor 1170 may be disposed within the first mounting portion 1017a formed in the side portion 1141-1 of the housing 1140.
[0480] When the spool 1110 is in the initial position, the position sensor 1170 disposed on the side 1141-1 of the housing 1140 may overlap with the sensing magnet 1180 disposed on the spool 1110 in a direction perpendicular to the optical axis, but this disclosure is not limited thereto. In another embodiment, the two components may not overlap.
[0481] During the movement of the linear shaft 1110, the position sensor 1170 can detect the strength of the magnetic field of the sensing magnet 1180 mounted on the linear shaft 1110 and output a signal (e.g., output voltage) corresponding to the detection result.
[0482] The capacitor 1195 may be disposed or mounted on the first surface 1019a of the circuit board 1190 and may be electrically connected to the circuit board 1190.
[0483] The capacitor 1195 may be chip-type and may include: a first terminal electrically connected to one end of the capacitor 1195; and a second terminal electrically connected to the other end of the capacitor 1195. The capacitor 1195 may alternatively be referred to as a “capacitive element” or a “condenser”.
[0484] In another embodiment, capacitor 1195 may be included in circuit board 1190. In one example, circuit board 1190 may include a capacitor comprising a first conductive layer, a second conductive layer, and an insulating layer (e.g., a dielectric layer) disposed between the first conductive layer and the second conductive layer.
[0485] Capacitor 1195 can be electrically connected in parallel to the two terminals of position sensor 1170 to supply power or drive signal to position sensor 1170.
[0486] In one example, capacitor 1195 may be electrically connected in parallel to the first and second terminals (e.g., B1 and B2) of circuit board 1190 to supply electrical or drive signals to position sensor 1170. Because capacitor 1195 is electrically connected in parallel to the first terminal B1 and the second terminal B2 of circuit board 1190, capacitor 1195 can be used as a filter circuit to eliminate pulsating components included in the electrical or drive signals supplied from the outside to position sensor 1170, thereby supplying a stable and consistent electrical signal to position sensor 1170.
[0487] In one example, capacitor 1195 prevents excessive current from being applied to position sensor 1170 due to externally introduced high-frequency noise (ESD) and prevents the calibration value related to the displacement of the spool (which is obtained based on the signal output from position sensor 1170) from being reset due to excessive current.
[0488] The upper elastic member 1150 and the lower elastic member 1160 may be connected to the spool 1110. In one example, the upper elastic member 1150 and the lower elastic member 1160 may be connected to the spool 1110 and the housing 1140, and may support the spool 1110 relative to the housing 1140.
[0489] In one example, the upper elastic member 1150 may be connected to the upper part, upper surface, or upper end of the spool 1110, and to the upper part, upper surface, or upper end of the housing 1140. The lower elastic member 1160 may be connected to the lower part, lower surface, or lower end of the spool 1110, and to the lower part, lower surface, or lower end of the housing 1140.
[0490] At least one of the upper elastic member 1150 or the lower elastic member 1160 may be divided or separated into two or more units. In one example, the lower elastic member 1160 may include a first lower elastic unit 1160-1 and a second lower elastic unit 1160-2, which are separated from each other.
[0491] The upper elastic member 1150 and the lower elastic member 1160 may be implemented as leaf springs, but this disclosure is not limited thereto. The elastic members may be implemented as coil springs, suspension wires, etc.
[0492] Although the upper elastic member 1150 is in Figure 23 The upper elastic member is illustrated as comprising a single upper elastic unit, rather than being divided into multiple units, but this disclosure is not limited thereto. In another embodiment, the upper elastic member may include multiple upper elastic units, and the multiple upper elastic units may be electrically connected to the coil 1120.
[0493] The upper elastic member 1150 may include: a first inner frame 1151, which is connected to the upper part, upper surface, or upper end of the spool 1110; a first outer frame 1152, which is connected to the upper part, upper surface, or upper end of the housing 1140; and a first frame connecting portion 1153, which connects the first inner frame 1151 to the first outer frame 1152. Here, the inner frame may be referred to as the "internal part", the outer frame may be alternatively referred to as the "external part", and the frame connecting portion may be alternatively referred to as the "connecting portion".
[0494] The first inner frame 1151 of the upper elastic member 1150 may have a hole 1151a or a recess formed therein, which is connected to the first connecting portion 1113 of the spool 1110. The first outer frame 1152 of the upper elastic member 1150 may have a hole 1152a or a recess formed therein, which is connected to the first connecting portion 1144 of the housing 1140. A slit may be formed in each of the recesses 1151a and 1152a. In another embodiment, such a slit may not be formed.
[0495] The lower elastic member 1160 may include multiple lower elastic units.
[0496] In one example, the first lower elastic unit 1160-1 and the second lower elastic unit 1160-2 may be coupled to the spool 1110. Alternatively, the first lower elastic unit 1160-1 and the second lower elastic unit 1160-2 may be coupled to the spool 1110 and the housing 1140.
[0497] The first lower elastic unit 1160-1 and the second lower elastic unit 1160-2 can be disposed between the linear shaft 1110 and the base 1210.
[0498] At least one of the first lower elastic unit 1160-1 or the second lower elastic unit 1160-2 may include: a second inner frame 1161-1 or 1161-2, which is connected to the lower part, lower surface or lower end of the spool 1110; a second outer frame 1162-1 or 1162-2, which is connected to the lower part, lower surface or lower end of the housing 1140; and a second frame connecting portion 1163-1 or 1163-2, which connects the second inner frame 1161-1 or 1161-2 to the second outer frame 1162-1 or 1162-2.
[0499] Additionally, the second inner frame 1161-1 or 1161-2 of at least one of the first lower elastic unit 1160-1 or the second lower elastic unit 1160-2 may have a second connecting portion 1117 formed therein with a hole 1161a so as to be connected to the spool 1110 by means of solder or conductive adhesive member.
[0500] The second outer frame 1162-1 or 1162-2 of at least one of the first lower elastic unit 1160-1 or the second lower elastic unit 1160-2 may have a hole 1162a formed therein for being connected to the housing 1140 by a second connecting portion 1147.
[0501] In one example, one end of the coil 1120 may be connected to one end of the second inner frame 1161-1 of the first lower elastic unit 1160-1 by means of solder or conductive component, while the other end of the coil 1120 may be connected to one end of the second inner frame 1161-2 of the second lower elastic unit 1160-2 by means of solder or conductive component.
[0502] In one example, the second inner frame 1161-1 of the first lower elastic unit 1160-1 may have a connecting portion 1065a (which connects to one end of the coil 1120), while the second inner frame 1161-2 of the second lower elastic unit 1160-2 may have a connecting portion 1065b (which connects to the other end of the coil 1120). In one example, the connecting portions 1065a and 1065b of the first lower elastic unit 1160-1 and the second lower elastic unit 1160-2 may have a plurality of slots formed therein to guide the coil 1120.
[0503] The second outer frame 1162-1 of the first lower elastic unit 1160-1 may be provided with a first connecting part 1062a so that it can be connected to the first terminal 1091 of the circuit board 1190.
[0504] In one example, the first connection 1062a may have a structure that extends from the outer surface of the second outer frame 1162-1 toward the circuit board 1190 so that it can be easily connected to the first terminal 1091 of the circuit board 1190.
[0505] The second outer frame 1162-2 of the second lower elastic unit 1160-2 may be provided with a second connecting part 1062b so that it can be connected to the second terminal 1092 of the circuit board 1190.
[0506] In one example, the second joint 1062b may be separated from the first joint 1062a and may have a structure that extends from the outer surface of the second outer frame 1162-2 toward the circuit board 1190 so that it can be easily connected to the second terminal 1092 of the circuit board 1190.
[0507] The coil 1120 can be electrically connected to the first terminal 1091 and the second terminal 1092 of the circuit board 1190 via the first lower elastic unit 1160-1 and the second lower elastic unit 1160-2.
[0508] The first frame connection 1153 and the second frame connection 1163 of the upper elastic member 1150 and the lower elastic member 1160 are both bent or folded at least once to form a predetermined pattern. The upward and / or downward movement of the spool 1110 along the first direction can be supported in a flexible (or elastic) manner by changes in the position of the first frame connection 1153 and the second frame connection 1163 or by minor deformation.
[0509] In order to absorb and suppress the vibration of the spool 1110, the moving unit 1100 may further include a damper (not shown) disposed between the upper elastic member 1150 and the housing 1140.
[0510] In one example, a damper (not shown) may be disposed in the space between the first frame connection 1153 of the upper elastic member 1150 and the spool 1110 (and / or the housing 1140).
[0511] In another example, the moving unit 1100 may also include a damper (not shown) disposed on each of the first and second lower elastic units 1160-1, 1160-2 between a second frame connection 1163 and a spool 1110 (and / or housing 1140).
[0512] In another example, a damper (not shown) may be provided between the inner surface of the housing 1140 and the outer surface of the spool 1110.
[0513] The base 1210 may have an opening corresponding to the opening in the spool 1110 and / or the opening in the housing 1140, and may have a shape consistent with or corresponding to the shape of the cover member 1300, such as a quadrilateral shape.
[0514] The base 1210 may have a step 1211 formed on its lower end of its outer surface, which may be coated with an adhesive when the cover member 1300 is fixedly attached to the step. In this case, the step 1211 may guide the cover member 1300 attached to its upper side and may face the lower end of the side plate 1303 of the cover member 1300. Adhesive members and / or sealing members may be provided or applied between the lower end of the side plate 1303 of the cover member 1300 and the step 1211 of the base 1210.
[0515] The base 1210 can be positioned below the linear shaft 1110 and the housing 1140.
[0516] In one example, the base 1210 may be positioned below the lower elastic member 1160.
[0517] The base 1210 may have a protrusion 1216 formed at the center of its upper surface to correspond to the guide recess 1148 in the housing 1140. In one example, the protrusion 1216 may be in the shape of a polygonal pillar extending from the upper surface of the base 1210 so as to be perpendicular to the upper surface of the base 1210, and may alternatively be referred to as a "pillar portion".
[0518] The protrusion 1216 can be inserted into the guide recess 1148 in the housing 1140 and can be fixed or attached to the guide recess 1148 by means of an adhesive member (not shown), such as epoxy resin or silicone.
[0519] The base 1210 may have a mounting recess 1210a formed in its side surface, which corresponds to the side portion (e.g., 1141-1) of the housing 1140 where the circuit board 1190 is disposed, so that the lower end of the circuit board 1190 is disposed therein. The mounting recess 1210a in the base 1210 may have a structure that lowers the outer surface of the base 1210 corresponding to the side portion (e.g., 1141-1) of the housing 1140.
[0520] In one example, terminals B1 to B6 of the circuit board 1190 may be disposed on the lower end of the second surface 1019b of the circuit board 1190 and may be located within the mounting recess 1210a in the base 1210.
[0521] Additionally, the base 1210 may have recesses 1022a and 1022b formed therein to avoid spatial interference with the joint portions 1062a and 1062b of the first lower elastic unit 1160-1 and the second lower elastic unit 1160-2, and to facilitate welding. The recesses 1022a and 1022b in the base 1210 may be lowered in the upper surface of the base 1210 and may be connected to the mounting recess 1210a, but this disclosure is not limited thereto. These recesses may also not be connected to the mounting recess.
[0522] In one example, a protrusion 1036 for supporting the circuit board 1190 may be formed within the mounting recess 1210a in the base 1210. In another embodiment, this protrusion may be omitted.
[0523] The protrusion 1036 of the base 1210 may extend from the bottom of the mounting recess 1210a and may support a portion of the circuit board 1190, but this disclosure is not limited thereto.
[0524] The cover member 1300 can accommodate multiple other components of the movable unit 1100 within the accommodating space defined by the cover member 1300 and the base 1210.
[0525] The cover member 1300 may be box-shaped, having an open lower portion, and includes an upper plate 1302 and side plates 1303 connected to the upper plate 1302. The lower end of the side plate 1303 of the cover member 1300 may be attached to the upper portion of the base 1210. The upper plate 1302 of the cover member 1300 may be polygonal in shape, such as a quadrilateral or an octagonal shape.
[0526] The cover member 1300 may have an opening, hole, or chamber 1301 formed in its upper plate 1302 to expose a lens (not shown) coupled to the spool 1110 to external light.
[0527] The cover member 1300 may be formed of a non-magnetic material (e.g., SUS or plastic) so that it will not be attracted to the magnet 1130. However, the cover member 1300 may also be formed of a magnetic material to act as a magnetic yoke. For example, the cover member 1300 may be formed of a metal or a plastic material, but this disclosure is not limited thereto.
[0528] The cover member 1300 may include a protrusion 1305 extending from the upper plate 1302 toward the spool 1110. This protrusion 1305 may alternatively be referred to as an "extension".
[0529] The cover member 1300 may include at least one protrusion 1305 that extends from a region adjacent to a cavity 1301 formed in the upper plate 1302 toward the upper surface of the spool 1110.
[0530] In one example, the cover member 1300 may have four protrusions 1305 corresponding to the four corners of the upper plate 1302, and four recesses 1119 corresponding to these four protrusions 1305 may be formed in the spool 1110.
[0531] At least a portion 1305 of the protrusion of the cover member 1300 may be disposed or inserted into a recess 1119 formed in the upper surface of the linear shaft 1110. In one example, one end or the distal end of the protrusion 1305 may be disposed in the recess 1119.
[0532] As the spool 1110 moves along the optical axis to perform the AF operation, the protrusion 1305 of the cover member 1300 can come into contact with the bottom surface of the recess 1119 in the spool 1110, and thus the protrusion 1305 of the cover member 1300 can be used as a stop to restrict the upward movement of the spool 1110 within a predetermined range.
[0533] Alternatively, in another embodiment where the magnet is located on one corner of the housing, the protrusion 1305 of the cover member 1300 can function as a magnetic yoke and can be alternatively referred to as an inner magnetic yoke.
[0534] In another embodiment, the housing 1140 may be omitted, and the protrusion of the cover member 1300 may support or fix the magnet.
[0535] Reference Figure 21 The upper surface of the upper plate 1011A of the cover member 1310 can contact the rear surface 1007B of the display panel 751.
[0536] For example, among the components that make up the overall display panel 751, the rear surface 1007B of the display panel 751 may be the rear surface of the component (e.g., glass or substrate) that is closest to the camera module 1000.
[0537] Since the upper surface of the upper plate 1011A of the cover member 1310 contacts the rear surface 1007B of the display panel 751, the optical path length between the display panel 751 and the optical path conversion unit 1320 can be shortened. As a result, light loss can be reduced, and the reduction in the amount of light introduced into the optical path conversion unit 1320 can be minimized.
[0538] The portable terminal 200A may include a front surface or front side 1007A and a rear surface or rear side formed opposite to the front surface or front side.
[0539] In one example, structurally, the front surface or front side 1007A of the portable terminal 200A may be glass (e.g., front tempered glass) included in the display panel 751 or touch screen panel 753.
[0540] The touchscreen panel 753 and the display panel 751 may be located adjacent to the front surface or front side 1007A of the portable terminal 200A. In one example, the front surface or front side 1007A of the portable terminal 200A may be the "front surface of the display panel 751".
[0541] For example, in an embedded configuration where the display panel and touchscreen panel are integrated, the front surface or front side 1007A of the portable terminal 200A may be the "front surface of the display panel". Alternatively, for example, in an attached configuration where the display panel is separately disposed from the touchscreen panel, the front surface or front side 1007A of the portable terminal 200A may be the "front surface of the touchscreen panel". Alternatively, for example, in both embedded and attached configurations, the front surface or front side of the portable terminal may correspond to the front surface of the display panel. The display panel 753 may include an active area.
[0542] The first surface 1008A of the reflective member 1322 may be fixedly disposed at a position separated from the front surface 1007A of the display panel 751 by a predetermined distance d3. Alternatively, in one example, the first surface 1008A of the reflective member 1322 may be fixedly disposed at a position separated from the rear surface 1007B of the display panel 751 by a predetermined distance d4.
[0543] For example, d3 can be the distance in the vertical direction 1014A between the first surface 1008A of the reflective member 1322 and the front surface 1007A of the display panel 751. For example, d4 can be the distance in the vertical direction 1014A between the first surface 1008A of the reflective member 1322 and the rear surface 1007B of the display panel 751. For example, the vertical direction 1014A can be a direction perpendicular to the optical axis (OA) direction of the moving unit 1100. Alternatively, for example, the vertical direction 1014A can be a direction perpendicular to either the front surface 1007A or the rear surface 1007B of the display panel 751.
[0544] In one example, the first surface 1008A of the reflective member 1322 may be parallel to the front surface 1007A or the rear surface 1007B of the display panel 751, while the second surface 1008B of the reflective member 1322 may be perpendicular to the front surface 1007A or the rear surface 1007B of the display panel 751.
[0545] The distance d3 or d4 between the front surface or front side 1007A (or rear surface or rear side 1007B) of the portable terminal 200A and the reflective member 1322 in the vertical direction 1014A can be a fixed distance and can be constant, and will not be changed by the AF operation of the camera module 1000.
[0546] In one example, the reflective member 1322 of this embodiment may be fixed, rather than movable in the vertical direction 1014A and the horizontal direction 1014B. This may mean that the optical path transformation unit 1320 does not move or shift in the vertical direction 1014A or the horizontal direction 1014B. For example, the horizontal direction 1014B may be perpendicular to the vertical direction 1014A.
[0547] For example, the horizontal direction 1014B can be the direction of the optical axis (OA) or a direction parallel to the optical axis OA. For example, the horizontal direction 1014B can be a direction parallel to the display panel 751. For example, the horizontal direction 1014B can be a direction parallel to the front surface 1007A or the rear surface 1007B of the display panel 751.
[0548] Since the lens module 1400 is moved by the moving unit 1100 along the horizontal direction 1014B but not along the vertical direction 1014A, the distance d5 between the display panel 751 and the moving unit 1100 in the vertical direction 1014A (refer to...) Figure 32b The distance can be a fixed distance and can be constant, and will not be changed by the AF operation of the camera module 1000.
[0549] The first surface 1008A of the reflective member 1322 may be located below the upper plate 1011A of the cover member 1310 so as to be protected from external impacts.
[0550] For example, the distance H1 between the first surface 1008A of the reflective member 1322 and the upper surface of the upper plate 1011A of the cover member 1310 in the vertical direction 1014A can be 0.3 mm to 1 mm. For example, H1 can be 0.5 mm to 0.8 mm. For example, H1 can be 0.6 mm to 0.7 mm.
[0551] In one example, such as Figure 21 As shown, the distance d4 between the first surface 1008A of the reflective member 1322 and the rear surface 1007B of the display panel 751 in the vertical direction 1014A can be equal to H1.
[0552] For example, the thickness of the upper plate 1011A of the cover member 1310 may be from 0.5 mm to 0.15 mm, but this disclosure is not limited thereto.
[0553] For example, the distance d3 between the first surface 1008A of the reflective member 1322 and the front surface 1007A of the display panel 751 in the vertical direction 1014A can be the sum of d4 and the thickness of the display panel 751.
[0554] For example, in the case of a liquid crystal display (LCD) panel for a portable terminal, the thickness of the display panel 751 can be 1 mm to 2 mm, but this disclosure is not limited thereto. Similarly, in the case of an organic light-emitting diode (OLED) panel for a portable terminal, the thickness of the display panel 751 can be 0.1 mm to 0.2 mm, but this disclosure is not limited thereto.
[0555] For example, in the case of an LCD panel in a portable terminal, d3 can be from 1.3mm to 3mm. For example, d3 can be from 1.5mm to 2.5mm. For example, d3 can be from 1.6mm to 1.8mm.
[0556] For example, in the case of an OLED panel for a portable terminal, d3 can be from 0.4mm to 1.2mm. For example, H1 can be from 0.6mm to 1mm. For example, H1 can be from 0.6mm to 0.8mm.
[0557] The distance H3 between the second surface 1008B of the reflective member 1322 and the lens module 1400 in the horizontal direction 1014B can be 0.2 mm to 0.6 mm. For example, H3 can be 0.3 mm to 0.5 mm. For example, H3 can be 0.4 mm to 0.45 mm. For example, H3 can be 0.45 mm to 0.6 mm.
[0558] For example, H3 can be greater than or equal to the travel distance of the AF operation unit in the direction from the initial position of the AF operation unit of the moving unit 1100 toward the second surface 1008B. Otherwise, the AF operation may not be performed normally due to collisions or spatial interference between the lens module 1400 and the second surface 1008B.
[0559] For example, when the AF operation unit (e.g., spool 1110) of the moving unit 1100 is in the initial position, H3 can be the distance between the lens module 1400 and the second surface 1008B. Alternatively, in another embodiment, H3 can be the distance between the lens module 1400 and the second surface 1008B when the AF operation unit is located at a distance further away from the second surface 1008B.
[0560] Alternatively, H3 could be, for example, the distance between the first lens (which is closest to the second surface 1008B among the plurality of lenses in the lens module 1400) and the second surface 1008B. Alternatively, H3 could be, for example, the distance between a region (e.g., the central region) of the first lens closest to the second surface 1008B and the second surface 1008B.
[0561] For example, the ratio of H3 to d4 (H3:d4) can be from 1:0.5 to 1:5. Alternatively, for example, the ratio of H3 to d4 (H3:d4) can be from 1:0.5 to 1:1.1. Alternatively, for example, the ratio of H3 to d4 (H3:d4) can be from 1:1 to 1:1.5. Alternatively, for example, the ratio of H3 to d4 (H3:d4) can be from 1:1.2 to 1:1.5. For example, the ratio of H3 to d4 (H3:d4) can be from 1:1.5 to 1:2. Alternatively, for example, the ratio of H3 to d4 (H3:d4) can be from 1:2 to 1:5.
[0562] When the value obtained by dividing d4 by H3 (d4 / H3) is less than 0.5, H3 may have an excessively large value, which will greatly increase the loss of light introduced into the lens module through the reflective member 1322.
[0563] On the other hand, when the value obtained by dividing d4 by H3 (d4 / H3) is greater than 5, d4 may have an excessively large value, which would reduce the amount of light introduced to the reflective member 1322 through the display panel. Alternatively, when the value obtained by dividing d4 by H3 (d4 / H3) is greater than 5, H3 may have an excessively small value, which would limit the travel of the lens module 1400 used for AF operation.
[0564] For example, in the case of an LCD panel for a portable terminal, the ratio of H3 to d3 (H3:d3) can be from 1:2.1 to 1:15. Alternatively, for example, in the case of an LCD panel for a portable terminal, the ratio of H3 to d3 (H3:d3) can be from 1:2.5 to 1:6. For example, in the case of an LCD panel for a portable terminal, the ratio of H3 to d3 (H3:d3) can be from 1:3 to 1:5.
[0565] When the value obtained by dividing d3 by H3 (d3 / H3) is less than 2.1, d3 may be too small, which could cause the reflective member 1322 and the display panel 751 to be too close to each other. Therefore, the display panel 751 and the reflective member 1322 may collide with each other due to external impact, potentially damaging the camera module. Alternatively, when the value obtained by dividing d3 by H3 (d3 / H3) is less than 2.1, H3 may be too large, which would significantly increase the loss of light introduced into the lens module through the reflective member 1322.
[0566] On the other hand, when the value obtained by dividing d3 by H3 (d3 / H3) is greater than 15, H3 may have too small a value, which will limit the travel of the lens module 1400 used for AF operation.
[0567] For example, in the case of an OLED panel for a portable terminal, the ratio of H3 to d3 (H3:d3) can be from 1:0.7 to 1:6. Alternatively, for example, in the case of an OLED panel for a portable terminal, the ratio of H3 to d3 (H3:d3) can be from 1:1 to 1:2.5. For example, in the case of an OLED panel for a portable terminal, the ratio of H3 to d3 (H3:d3) can be from 1:1.5 to 1:2.
[0568] Reference Figure 4 The distance H2 between the second surface 1008B of the reflective member 1322 and the upper surface 1302 of the upper plate of the cover member 1300 along the horizontal direction 1014B can be from 0.2 mm to 0.8 mm, but this disclosure is not limited thereto. For example, H2 can be from 0.4 mm to 0.6 mm. For example, H2 can be from 0.5 mm to 0.6 mm.
[0569] The second surface 1008B of the reflective member 1322 and the lens module 1400 may be configured to be separated from each other. In one example, there may be a gap or empty space between the second surface 1008B of the reflective member 1322 and the lens module 1400.
[0570] For example, the distance D1 between the second surface 1008B of the reflective member 1322 and the image sensor 1810 along the horizontal direction 1014B can be the sum of the distance H3 between the second surface 1008B and the lens module 1400 along the horizontal direction 1014B and the total top length (TTL) of the lens module 1400.
[0571] For example, D1 can be from 3.2mm to 6.6mm. For example, D1 can be from 3.5mm to 6mm. For example, D1 can be from 4mm to 5mm.
[0572] For example, the ratio of d4 to D1 (d4:D1) can be from 1:3.2 to 1:22. Alternatively, the ratio of d4 to D1 (d4:D1) can be from 1:5 to 1:10. Alternatively, the ratio of d4 to D1 (d4:D1) can be from 1:10 to 1:15. Alternatively, the ratio of d4 to D1 (d4:D1) can be from 1:15 to 1:20.
[0573] When the value obtained by dividing D1 by d4 (D1 / d4) is less than 3.2, d4 may have an excessively large value, which will reduce the amount of light introduced into the reflective member 1322 through the display panel.
[0574] When the value obtained by dividing D1 by d4 (D1 / d4) is greater than 22, D1 may have too small a value, which will limit the travel of the lens module 1400 used for AF operation.
[0575] For example, in the case of an LCD panel for a portable terminal, the ratio of d3 to D1 (d3:D1) can be from 1:1.1 to 1:5.1. For example, in the case of an LCD panel for a portable terminal, the ratio of d3 to D1 (d3:D1) can be from 1:2 to 1:4. For example, in the case of an LCD panel for a portable terminal, the ratio of d3 to D1 (d3:D1) can be from 1:2.5 to 1:3.
[0576] For example, in the case of an OLED panel for a portable terminal, the ratio of d3 to D1 (d3:D1) can be from 1:2.7 to 1:16.5. Alternatively, in the case of an OLED panel for a portable terminal, the ratio of d3 to D1 (d3:D1) can be from 1:3 to 1:10. Or, in the case of an OLED panel for a portable terminal, the ratio of d3 to D1 (d3:D1) can be from 1:5 to 1:8.
[0577] In one example, the distance H3 between the second surface 1008B of the reflective member 1322 and the lens module 1400 in the horizontal direction 1014B can be shorter than the distance d3 between the first surface 1008A of the reflective member 1322 and the front surface 1007A of the display panel 751 in the vertical direction 1014A. In another embodiment, the distance between the second surface 1008B of the reflective member 1322 and the lens module 1400 in the horizontal direction 1014B can be the same as or longer than the distance between the first surface 1008A of the reflective member 1322 and the front surface 1007A of the display panel 751 in the vertical direction 1014A.
[0578] In another example, the distance H3 between the second surface 1008B of the reflective member 1322 and the lens module 1400 in the horizontal direction 1014B can be shorter than the distance d4 between the first surface 1008A of the reflective member 1322 and the rear surface 1007B of the display panel 751 in the vertical direction 1014A. In another embodiment, the distance between the second surface 1008B of the reflective member 1322 and the lens module 1400 in the horizontal direction 1014B can be the same as or longer than the distance between the first surface 1008A of the reflective member 1322 and the rear surface 1007B of the display panel 751 in the vertical direction 1014A.
[0579] The distance d3 between the front surface 1007A of the display panel 751 and the first surface 1008A of the reflective member 1322 in the vertical direction 1014A can be longer than the distance d3 between the front surface 1007A of the display panel 751 and the upper surface of the upper plate 1011A of the cover member 1310 in the vertical direction 1014A. In another embodiment, the former can be shorter than or equal to the latter.
[0580] Regarding d1, d2, d3 and d4, the front surface 1007A or the rear surface 1007B of the display panel can be a portion corresponding to the functional area or viewing area S1 of the display panel 751.
[0581] like Figure 21 As shown, the first edge (or first corner) where the first surface 1008A of the reflective member 1322 and the third surface 1008C of the reflective member intersect each other can be positioned closer to the non-viewing area S2 than the second edge (or second corner) where the first surface 1008A of the reflective member 1322 and the second surface 1008B of the reflective member intersect each other.
[0582] In one example, the reflective element 1322 may be positioned closer to the non-viewing area S2 than the moving unit 1100 (or the image sensor 1810).
[0583] Figure 30a Another embodiment of the camera module 1000 is shown, which is disposed behind the display panel 751 of the portable terminal 200A.
[0584] Reference Figure 30a The upper plate 1011A of the cover member 1310 can be positioned at a predetermined distance d1 from the display panel 751.
[0585] For example, d1 can be from 0.1 mm to 1 mm. For example, d1 can be from 0.2 mm to 0.5 mm. For example, d1 can be from 0.4 mm to 0.8 mm.
[0586] When d1 is less than 0.1mm, the distance between the camera module and the display panel becomes too short, which may cause the camera module to be damaged by external impact. On the other hand, when d1 is greater than 1mm, d3 and d4 may increase significantly, which may reduce the amount of light introduced to the first surface 1008A of the reflective member 1322 through the display panel 751.
[0587] For example, the distance d2 between the upper surface of the upper plate 1011A of the cover member 1310 and the front surface 1007A of the display panel 751 in the vertical direction 1014A can be the sum of d1 and the thickness of the display panel 751.
[0588] For example, in Figure 30a In the illustrated embodiment, d4 can be the sum of H1 and d1.
[0589] For example, in Figure 30a In the illustrated embodiment, d3 can be the sum of H1 and d2.
[0590] For example, d1 can be shorter than H1. In another embodiment, d1 can be equal to H1 or longer than H1.
[0591] Figure 30b A camera module with a vibration damping member is shown according to another embodiment. (See reference...) Figure 30b The upper plate 1011A of the cover member 1310 can be separated from the display panel 751, and the camera module may include a shock-absorbing member 1038A, which is disposed between the upper plate 1011A of the cover member 1310 and the display panel 751.
[0592] The shock-absorbing member 1038A can contact the upper surface of the upper plate 1011A of the cover member 1310 and the rear surface 1007B of the display panel 751. The shock-absorbing member 1038A can prevent the display panel 751 and the camera module 1000 from colliding with each other due to external impacts and can absorb external impacts.
[0593] The damping component 1038A may be made of a material capable of absorbing impact (e.g., It may be made of silicone or other materials. For example, the damping member 1038A may have an opening corresponding to the first opening 1311 in the cover member 1310, so that the first surface 1008A of the reflective member 1322 is exposed or open.
[0594] The shock-absorbing member 1038A may be disposed between the display panel 751 and the moving unit 1100 and / or between the display panel 751 and the circuit board 1800. In one example, the shock-absorbing member 1038A may be disposed between the cover member 1300 of the moving unit 1100 and the rear surface 1007B of the display panel 751, between the base 1210 and the rear surface 1007B of the display panel 751, and / or between the rear surface 1007B of the display panel 751 and the circuit board 1800.
[0595] Figure 30c A camera module including a reflective member 1322-1 is shown according to another embodiment.
[0596] Reference Figure 30c The first surface 1008A of the reflective member 1322-1 may be located on the same surface as the upper surface of the upper plate 1011A of the cover member 1310.
[0597] In one example, based on the lower plate 1011B of the cover member 1310, the height of the first surface 1008A of the reflective member 1322-1 can be the same as the height of the upper surface of the upper plate 1011A of the cover member 1310.
[0598] Figure 30c The embodiments shown may be Figure 21 In the illustrated embodiment, H1 is 0. Alternatively, Figure 30c The embodiments shown may be Figure 30a The example shown illustrates the case where H1 is 0.
[0599] Compare Figure 21 and Figure 30a , Figure 30c The distance d3 (or d4) between the first surface 1008A of the reflective member 1322-1 shown and the front surface 1007A (or rear surface 1007B) of the display panel 751 may be reduced, thereby reducing the loss of light introduced through the display panel 751 to the first surface 1008A of the reflective member 1322-1.
[0600] Figure 30d A camera module including a reflective member 1322-2 is shown according to yet another embodiment.
[0601] Reference Figure 30d The first surface 1008A of the reflective member 1322-2 can extend from the upper surface of the upper plate 1011A of the cover member 1310.
[0602] In one example, the first surface 1008A of the reflective member 1322-2 may be positioned closer to the display panel 751 than the upper surface of the upper plate 1011A of the cover member 1310. In another example, the first surface 1008A of the reflective member 1322-2 may be positioned closer to the front surface 1007A (or rear surface 1007B) of the display panel 751 than the upper surface of the upper plate 1011A of the cover member 1310.
[0603] Compare Figure 21 and Figures 30a to 30c , Figure 30d The embodiment shown can also reduce the distance between the display panel and the first surface 1008A of the reflective member 1322-2, thereby further reducing the loss of light introduced into the first surface 1008A of the reflective member 1322-2 through the display panel 751.
[0604] In addition, Figure 30c and Figure 30d In the illustrated embodiment, the first surface 1008A of the reflective member 1322-1 or 1322-2 may contact the rear surface 1007B of the display panel 751. In another embodiment, the first surface 1008A of the reflective member 1322-1 or 1322-2 may be separated from the rear surface 1007B of the display panel 751.
[0605] Figure 30b The damping component 1038A shown can also be applied to Figure 30c and Figure 30d The embodiment shown.
[0606] Figure 31The second surface 1008B of the optical path conversion unit 1320 and the diameter of the lens of the lens module 1400 are shown. For example, the diameter R of the lens can be the diameter of the first lens along the vertical direction 1014A, which is located closest to the second surface 1008B.
[0607] Reference Figure 31 The length L1 of the second surface 1008B in the longitudinal direction of the optical path transformation unit 1320 can be greater than the diameter R of the lens (L1>R). In another embodiment, the length of the second surface 1008B in the longitudinal direction can be equal to the diameter of the lens. In one example, the longitudinal direction of the second surface 1008B can be the vertical direction 1014A or the X-axis direction.
[0608] The length L2 of the second surface 1008B in the lateral direction can be greater than the diameter R of the lens (L2>R). In another embodiment, the length of the second surface 1008B in the lateral direction can be equal to the diameter of the lens. In one example, the lateral direction of the second surface 1008B can be perpendicular to the vertical direction 1014A. The lateral direction of the second surface 1008B can also be perpendicular to the optical axis (OA) direction (e.g., the Y-axis direction).
[0609] The area of the second surface 1008B of the optical path transformation unit 1320 can be greater than the area of the cross-section of the lens along a direction parallel to the plane perpendicular to the optical axis. In another embodiment, the area of the second surface 1008B can be equal to the area of the cross-section of the lens.
[0610] In one example, the dimensions of the first surface 1008A of the reflecting member 1322 can be the same as the dimensions of the second surface 1008B. The descriptions of L1 and L2 of the second surface 1008B and the diameter R of the lens can also be applied to the first surface 1008A and the diameter of the lens. Here, the dimensions can be the length along a vertical direction (e.g., the X-axis direction), the length along a direction perpendicular to the vertical direction 1014A (e.g., the Y-axis direction), or a region.
[0611] In another embodiment, the area of the first surface 1008A of the reflective member 1322 may be different from the area of the second surface 1008B. In one example, the area of the first surface 1008A may be greater than or less than the area of the second surface 1008B.
[0612] Figure 32a This is a schematic concept diagram of a camera module 1010 positioned below a display panel 751, based on a comparative example. Figure 32b This is a schematic concept diagram of a camera module 1000 disposed below a display panel 751 according to this embodiment.
[0613] Reference Figures 31 to 32b The camera module 1010 may include a circuit board 1080, an image sensor 1081 disposed on the circuit board 1080, and a lens-drive unit 1040 disposed on the image sensor 1081.
[0614] The lens-drive unit 1040 can be disposed between the lower surface (or rear surface) of the display panel 751 and the image sensor 1081.
[0615] The lens-drive unit 1040 may include a lens module and a drive unit for moving the lens module in the vertical direction 1014A. As the lens module of the lens-drive unit 1040 is moved in the vertical direction 1014A, the distance d5 (or d6) between the lens module (or lens) of the lens-drive unit 1040 and the front surface (or rear surface) of the display panel 751 can be changed.
[0616] Since light is introduced from the outside of the portable terminal through the display panel 751 into the lens-drive unit 1040, the amount of light introduced into the lens-drive unit 1040 may be reduced due to the display panel 751.
[0617] Furthermore, as d5 (or d6) increases, the amount of light introduced into the lens module of the lens-drive unit 1040 may decrease significantly. Additionally, as... Figure 32a As shown, as the lens module is moved in the vertical direction 1014A by the lens-drive unit 1040, the amount of light introduced into the lens module may change significantly.
[0618] In one example, the amount of light introduced into the lens module when it is closest to the display panel 751 may differ significantly from the amount of light introduced into the lens module when it is furthest from the display panel 751.
[0619] exist Figure 32a In the camera module 10 shown (where the amount of light is reduced due to the display panel 751), as d5 (or d6) increases, the amount of light introduced into the lens module of the lens-drive unit 1040 is further reduced. Therefore, AF operation may not be performed properly, the image generated by the image sensor 1081 may be darker, and the resolution of the image sensor 1081 may be reduced.
[0620] In particular, during AF operation, when the lens-drive unit 1040 reaches the position furthest from the display panel 751, the amount of light introduced into the image sensor 1081 may be significantly reduced.
[0621] Reference Figure 32bThe first surface 1008A of the reflective member 1322 of the optical path conversion unit 1320 can be fixedly disposed at a position separated from the front surface 1007A of the display panel 751 by a predetermined distance d3. Alternatively, in one example, the first surface 1008A of the reflective member 1322 of the optical path conversion unit 1320 can be fixedly disposed at a position separated from the rear surface 1007B of the display panel 751 by a predetermined distance d4.
[0622] The distance d3 or d4 between the front surface or front side 1007A (or rear surface or rear side 1007B) of the portable terminal 200A and the optical path conversion unit 1320 in the vertical direction 1014A can be a predetermined fixed distance and can be constant, without being changed by the AF operation of the camera module 1000.
[0623] Since the lens module 1400 is moved by the moving unit 1100 along the horizontal direction 1014B but not along the vertical direction 1014A, the distance d7 between the display panel 751 and the moving unit 1100 in the vertical direction 1014A can be a predetermined distance and can be constant, without being changed by the AF operation of the camera module 1000.
[0624] In one example, d7 can be the distance in the vertical direction 1014A between the front surface 1007A (or rear surface 1007B) of the display panel 751 and the spool 1110 (or lens module 1400) of the moving unit 1100.
[0625] Although the amount of light is reduced due to the display panel 751, the amount of light introduced into the reflective member 1322 can be constant and is not affected by the AF operation of the camera module 1000 because the distances d3 and d4 are constant.
[0626] Therefore, according to this embodiment, sufficient light for AF operation can be uniformly introduced into the reflective member 1322, and AF operation can be smoothly performed in a configuration structure where the light amount is reduced due to the display panel 751. That is, this embodiment can ensure uniform light amount, so as to make AF operation more stable.
[0627] Light introduced along the vertical direction 1014A can be reflected or refracted by the reflective member 1322 along the horizontal direction 1014B, and the lens module 1400 can be moved along the horizontal direction 1014B by the moving unit 1100, thereby enabling autofocus. Therefore, it is possible to prevent AF operation from being abnormally performed due to insufficient light in the optical device caused by the camera module in the optical device being configured to overlap with the active area of the display panel 751 in the vertical direction 1014A, and to prevent resolution degradation of the image sensor 1810.
[0628] Figure 33 This is an exploded perspective view of a camera module 2000-1 according to another embodiment. (Refer to...) Figure 33 The camera module 2000-1 can be Figure 18 and Figure 19 The image shows a modified example of the camera module 1000.
[0629] and Figure 18 Compared to the camera module 1000 shown, the camera module 2000-1 may also include an adhesive member 1612 and a sensor base 1600. Figure 33 The circuit board 1800-1 shown can be Figure 19 A modified example of the circuit board 1800 shown.
[0630] In one example, circuit board 1800-1 may include: a first board portion 1811 on which an image sensor 1810 is disposed; a second board portion 1812; and a third board portion 1813 that connects the first board portion 1811 to the second board portion 1812. Circuit board 1800-1 may include a terminal 1801 that is electrically connected to terminals B1 to B6 of circuit board 1190 of moving unit 1100.
[0631] The adhesive component 1612 can connect or attach the base 1210 of the movable unit 1100 to the circuit board 1800-1. For example, the adhesive component 1612 can be epoxy resin, thermosetting adhesive, UV curing adhesive, etc.
[0632] The sensor base 1600 may be disposed below the base 1210 of the moving unit 1100. In one example, the sensor base 1600 may be disposed on the circuit board 1800-1.
[0633] The sensor base 1600 may include a mounting portion 1500 in which the filter 1610 is mounted, disposed, or set. In one example, the mounting portion 1500 may be formed as a recessed shape that is lowered in the upper surface of the sensor base 1600, but this disclosure is not limited thereto. In another embodiment, the mounting portion may have the shape of a protrusion extending from the upper surface of the sensor base 1600.
[0634] The sensor base 1600 may have an opening or hole formed therein to expose or open the active area of the image sensor 1810.
[0635] The filter 1610 is disposed or installed in the mounting portion 1500 of the sensor base 1600.
[0636] Filter 1610 can be used to block light within a specific frequency band that passes through lens module 1400 from entering image sensor 1810. Filter 1610 can be an infrared cutoff filter, but this disclosure is not limited thereto. In this case, filter 1610 can be configured to be parallel to the XY plane.
[0637] In this case, the infrared cut-off filter can be formed from a thin film material or a glass material. For example, an infrared cut-off filter can be formed by coating an infrared cut-off coating material onto a plate filter (such as a camera-surface protective cover glass or cover glass).
[0638] In another embodiment, the filter 1610 may be disposed below the base 1210 of the moving unit 1100. Alternatively, in another embodiment, the base 1210 may have a mounting portion formed in its lower surface to allow the filter 1610 to be mounted therein. In this case, the sensor base can be omitted.
[0639] Circuit board 1800-1 may be disposed below moving unit 1100, and image sensor 1810 may be disposed or mounted on the upper surface of circuit board 1800-1. Image sensor 1810 may receive an image contained in light introduced through reflective member 1322 and lens module 1400, and may convert the received image into an electrical signal.
[0640] Image sensor 1810 can be positioned to allow lens module 1400 to align with the optical axis. Therefore, image sensor can capture light that has passed through lens module 1400. Image sensor 1810 can output an image using the light emitted to it. For example, image sensor 1810 can be a charge-coupled device (CCD), metal-oxide-semiconductor (MOS), CPD, or CID. However, the type of image sensor is not limited to these.
[0641] The filter 1610 and the image sensor 1810 can be separated from each other so that they face each other in the horizontal direction 1014B or the optical axis (OA).
[0642] The camera module 2000-1 can be electrically connected to the circuit board 1800-1, and may also include a connector 1840 having a port for electrically connecting to an external device.
[0643] The camera module 2000-1 may also include a motion sensor 1820, which is disposed or mounted on the circuit board 1800-1. The motion sensor 1820 may be electrically connected to the controller 1830 via a circuit pattern formed on the circuit board 1800-1.
[0644] The motion sensor 1820 can output rotational angular velocity information related to the motion of the camera module 2000-1. The motion sensor 1820 can be implemented as a two-axis or three-axis gyroscope sensor or an angular velocity sensor.
[0645] The camera module 2000-1 may also include a controller 1830, which is disposed on or mounted on the circuit board 1800-1. The controller 1830 may be electrically connected to the position sensor 1170. In one example, the controller 1830 may be electrically connected to the coil 1120.
[0646] In one example, circuit board 1800-1 may be electrically connected to circuit board 1190 of moving unit 1100, while controller 1830 may be electrically connected to coil 1120 and position sensor 1170 via circuit board 1800-1.
[0647] Additionally, based on the output signal applied from the position sensor 1170, the controller 1830 can perform the AF feedback operation of the AF operation unit of the motion unit 1100.
[0648] Camera modules 200-1 to 200-11, 1000, and 2000-1 according to these embodiments can be included in an optical device for the purpose of forming an image of an object existing in a space by utilizing optical properties such as reflection, refraction, absorption, interference, and diffraction. The purpose is to improve visibility, record and reproduce images using lenses, or for optical measurement or image propagation or transmission. For example, the optical device according to this embodiment can be a portable telephone, mobile phone, smartphone, portable smart device, digital camera, laptop computer, digital broadcast terminal, personal digital assistant (PDA), portable multimedia player (PMP), navigation device, etc., but is not limited to these, and can also be any device used to capture images or pictures.
[0649] Alternatively, the optical device according to this embodiment may include, for example, a mobile device, a telephone, a smartphone, a portable terminal equipped with a camera, and so on.
[0650] Figure 34 This is a perspective view of an optical device 200A according to one embodiment, and Figure 35 yes Figure 34 The diagram shows the configuration of the optical device 200A. Figure 34 In the diagram, the X-axis, Y-axis, and Z-axis directions are based on... Figures 1 to 17 Examples 200-1 to 200-11 shown, and Figures 18 to 33 The optical device is defined by the embodiments 1000 and 2000-1 shown, and will be described using the defined orientation.
[0651] Reference Figure 34 and Figure 35 The optical device 200A may include a body 850, a wireless communication unit 710, an A / V input unit 720, a sensor unit 740, an input / output unit 750, a memory 760, an interface unit 770, a controller 780, and a power supply unit 790.
[0652] Figure 34 The body 850 shown may be bar-shaped, but is not limited to this, and may be of any type, such as sliding, folding, swinging or rotating, wherein two or more sub-bodies are interconnected so that they can move relative to each other.
[0653] The main body 850 may include a housing (casing, cover, etc.) that determines its appearance. In one example, the main body 850 may be divided into a front housing 851 and a rear housing 852. Various electronic components of the aforementioned terminal may be installed in the space defined between the front housing 851 and the rear housing 852.
[0654] The wireless communication unit 710 may include one or more modules capable of wireless communication between the terminal 200A and the wireless communication system, or between the terminal 200A and the network to which the terminal 200A is located. In one example, the wireless communication unit 710 may include a broadcast receiving module, a mobile communication module 712, a wireless internet module 713, a near-field communication module 714, and a location information module 715.
[0655] The audio / video (A / V) input unit 720 is used to input audio or video signals and may include a camera 721 and a microphone 722.
[0656] Camera 721 may include any one of camera modules 200-1 to 200-11, 1000, and 2000-1 according to these embodiments.
[0657] The sensor unit 740 can sense the current state of the terminal 200A, such as whether the terminal 200A is open or closed, the position of the terminal 200A, whether the user is touching it, the orientation of the terminal 200A, or the acceleration / deceleration of the terminal 200A, and can generate sensing signals to control the operation of the terminal 200A. In one example, when the terminal 200A is a slider phone, it can detect whether the slider phone is open or closed. In addition, the sensor unit 740 is used to sense whether power is being supplied from the power supply unit 790, or whether the interface unit 770 is connected to an external device.
[0658] The input / output unit 750 is used to generate visual, audible, or tactile inputs or outputs. The input / output unit 750 can generate input data to control the operation of the terminal 200A and can display information processed by the device in the terminal 200A.
[0659] The input / output unit 750 may include a keyboard unit 730, a display panel 751, a touch screen panel 753, and a sound output module 752. The keyboard unit 730 can generate input data in response to the input keyboard.
[0660] Display panel 751 may include a plurality of pixels whose colors change in response to electrical signals. In one example, display panel 751 may include at least one of a liquid crystal display device, a thin-film transistor liquid crystal display device, an organic light-emitting diode, a flexible display device, or a 3D display device.
[0661] The touch panel 753 can convert the capacitance change caused by a user touching a specific area of the display panel 751 into an electrical input signal. In one example, the touch panel 753 may include at least one sensing electrode to sense user touch.
[0662] The touch panel 751 and the display panel 753 can be set separately from each other or can be integrated together.
[0663] For example, the touchscreen panel can be either attached or embedded. An attached type is one in which the touchscreen panel is attached to the outside of the display panel in the form of a film. An embedded type is one in which the touchscreen panel is mounted within the display panel. For example, embedded types can include in-cell or on-cell types.
[0664] The sound output module 752 can output audio data received from the wireless communication unit 710 in call signal receiving mode, call mode, recording mode, voice recognition mode, or broadcast receiving mode, or it can output audio data stored in the memory 760. The sound output module 752 may include a speaker for outputting sound.
[0665] The memory 760 may store programs used to operate and control the controller 780, and may temporarily store input / output data (e.g., phone books, text messages, audio, still images, pictures, and moving images). In one example, the memory 760 may store images captured by the camera 721, such as pictures or moving images.
[0666] Interface unit 770 serves as a channel for connection between terminal 200A and external devices. Interface unit 770 can receive data or power from external devices and transmit it to corresponding components in terminal 200A, or it can transmit data from terminal 200A to external devices. In one example, interface unit 770 may include a wired / wireless headphone jack, an external charging port, a wired / wireless data port, a memory card port, a port for connecting to a device with an identification module, an audio input / output (I / O) port, a video input / output (I / O) port, and a headphone port.
[0667] The controller 780 controls the entire operation of the terminal 200A. In one example, the controller 780 can perform controls and operations related to voice calls, data communications, and video calls.
[0668] The controller 780 may include a multimedia module 781 for multimedia playback. The multimedia module 781 may be located within the controller 780 or may be located separately from the controller 780.
[0669] The controller 780 can perform pattern recognition operations, thereby enabling handwriting or drawing input to the touchscreen to be perceived as Chinese characters or images.
[0670] By receiving external or internal power under the control of controller 780, power supply unit 790 can provide the power required to operate the corresponding components.
[0671] Reference Figure 3b , Figure 34 and Figure 35 The portable terminal 200A may include a front surface or front side 7A and a rear surface or rear side formed opposite to the front surface or front side.
[0672] Structurally, the front surface or front side 7A of the portable terminal 200A can be glass (e.g., front tempered glass) included in the display panel 751 or touch screen panel 753.
[0673] The touch panel 753 and the display panel 751 may be located adjacent to the front surface or front side 7A of the portable terminal 200A.
[0674] The display panel 751 may include an active area.
[0675] Reference Figures 1 to 17The camera modules 200-1 to 200-1 described herein can all be fixedly positioned separately from the display panel 753, while the image sensor 810 can be positioned separately from the lens module 400 (or lens). The image sensor 810 can be moved along the optical axis by a drive unit, which may include the aforementioned coil 120 and magnet 130. Additionally, the drive unit may include at least one of the second circuit board 805, the first circuit board 800, or the support member 220. Furthermore, the drive unit may also include a position sensor 170. Additionally, the drive unit may also include a sensing magnet 180.
[0676] This embodiment relates to a camera module configured to receive light passing through the active area of a display panel 751. The camera module may include: a lens module 400 (or lens) fixed along the optical axis; an image sensor 810 disposed separately from the lens; and a drive unit configured to move the image sensor 810 along the optical axis.
[0677] The lens module 400 (or lens) can face the working area along the optical axis.
[0678] In one example, the lens module 400 (or lens) may be separated from the active area in the optical axis direction or in a direction perpendicular to the display panel.
[0679] In one example, a portion of the lens module 400 (or lens) may be separated from the active area in a direction perpendicular to the optical axis or parallel to the display panel.
[0680] At least a portion of the lens module 400 (or lens) may overlap with the active area in the optical axis direction. In one example, at least a portion of the lens module 400 (or lens) may overlap with 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 below the active area.
[0681] At least a portion of the image sensor 810 may overlap with the active area in the optical axis direction. Alternatively, at least a portion of the image sensor 810 may overlap with the active area in a direction perpendicular to the display panel. At least a portion of the image sensor 810 may be disposed below the active area. In one example, the active area may be a display area or viewing area in which an image is displayed.
[0682] In one example, the image sensor 810 and the active area can be arranged or positioned parallel to each other.
[0683] The front surface or front side of the portable terminal 200A may include: a viewing area S1, which is visible to the user; and a non-viewing area S2, which is not visible to the user.
[0684] The viewing area S1 can be the display surface of the front surface 7A of the display panel 751, on which an image is displayed for the user to see. Additionally, a touch surface can be included in the viewing area for user touch input. Alternatively, in one example, the non-viewing area S2 can be an area (e.g., a black area) where images that can be recognized by the user are not visible.
[0685] In one example, the non-viewing area S2 can be set around the active area. In another example, the non-viewing area S2 can be set to surround the active area.
[0686] Each of camera modules 200-1 to 200-11 may be positioned behind the viewing area S1 of the portable terminal 200A. In one example, each of camera modules 200-1 to 200-11 may not be exposed to the viewing area S1 of the portable terminal 200A.
[0687] In one example, at least a portion of each of the camera modules 200-1 to 200-11 (e.g., lens module 400) may overlap with the viewing area S1 in the optical axis direction or in a direction perpendicular to the front surface 7A of each of the camera modules 200-1 to 200-11. Alternatively, each of the camera modules 200-1 to 200-11 may not overlap with the non-viewing area S2 in the optical axis direction or in a direction perpendicular to the front surface 7A of each of the camera modules 200-1 to 200-11.
[0688] In another embodiment, at least another portion of each of the camera modules 200-1 to 200-11 (e.g., lens module 400) may overlap with the non-viewing area S2 in the optical axis direction or in a direction perpendicular to the front surface 7A of each of the camera modules 200-1 to 200-11.
[0689] Display panel 751 may include a functional area containing multiple pixels. In one example, the functional area may be included in the viewing area S1.
[0690] At least a portion of each of the camera modules 200-1 to 200-11 (e.g., at least a portion of a lens or at least a portion of a lens barrel) may overlap with the active area of the display panel 751 in the optical axis direction or in a direction perpendicular to the front surface 7A of each of the camera modules 200-1 to 200-11.
[0691] In another example, at least a portion of each camera module 200-1 to 200-11 (e.g., at least a portion of the lens or at least a portion of the lens barrel) may overlap with at least one pixel in the active area of the display panel 751 in the optical axis direction or in a direction perpendicular to the front surface 7A of each of the camera modules 200-1 to 200-11.
[0692] In one example, the lens or lens barrel of each of the camera modules 200-1 to 200-11 may face or be opposite to the display panel 751 in the optical axis (OA) direction (e.g., the Z-axis direction).
[0693] Since each of the camera modules 200-1 to 200-11 is located behind the active area of the display panel 751, this embodiment can reduce the size of the light shield of the portable terminal 200A and increase the size of the display area (e.g., the active area). Additionally, in one example, the speaker of the sound output module 752 can be located on the side surface of the portable terminal 200A to further increase the size of the display area.
[0694] Furthermore, in each of the camera modules 200-1 to 200-11 according to these embodiments, the distance D1 or D2 between the front surface 7A (or rear surface 7B) of the display panel 751 and the lens module 400 along the optical axis is constant and is not affected by the autofocus operation.
[0695] Therefore, despite the reduction in light intensity due to the touch panel 753 and display panel 751, a constant amount of light can still be introduced into the lens module 400. Because this embodiment ensures a constant amount of light, AF operation can be performed smoothly in configurations where the amount of light is reduced due to the touch panel 753 and display panel 751.
[0696] Additionally, since the image sensor 810 is moved along the optical axis to perform autofocus, embodiments 200-1 to 200-11 may include a lens module 400 containing a large-diameter lens, which may result in an increase in the resolution of each of the camera modules 200-1 to 200-11.
[0697] Additionally, refer to Figures 18 to 33 , Figure 34 and Figure 35This is an embodiment related to camera modules 1000 and 2000-1 configured to receive light passing through the effective area of display panel 751. The camera module may include: a reflective member 1322 fixed in a vertical direction 1014A and a horizontal direction 1014B (or optical axis direction); a lens module 1400 disposed separately from the reflective member 1322; a moving unit 1100 configured to move the lens module 1400 in the horizontal direction 1014B; and an image sensor 1810 disposed separately from the moving unit 1100 in the horizontal direction 1014B. In one example, the optical axis direction of the lens module 1400 (or lens) may be parallel to the effective area of display panel 751.
[0698] In one example, the lens module 1400 (or lens) may be separated from the active area in the vertical direction 1014A or in a direction perpendicular to the display panel 751.
[0699] At least a portion of the optical path transformation unit 1320 may overlap with the active area in the vertical direction 1014A (or in the direction perpendicular to the optical axis OA). In one example, the entire area of the optical path transformation unit 1320 may overlap with the active area in the vertical direction 1014A (or in the direction perpendicular to the optical axis OA).
[0700] At least a portion of the reflective member 1322 may overlap with the active area in the vertical direction 1014A (or in a direction perpendicular to the optical axis OA). In one example, the entire area of the reflective member 1322 may overlap with the active area in the vertical direction 1014A (or in a direction perpendicular to the optical axis OA).
[0701] At least a portion of the lens module 1400 may overlap with the active area in the vertical direction 1014A (or in a direction perpendicular to the optical axis OA). In one example, the entire area of the lens module 1400 may overlap with the active area in the vertical direction 1014A (or in a direction perpendicular to the optical axis OA).
[0702] At least a portion of each of camera modules 1000 and 2000-1 may overlap with the functional area of display panel 751 in the vertical direction 1014A (or in a direction perpendicular to the optical axis OA). In one example, at least one of motion unit 1100, circuit board 1800 or 1800-1, or image sensor 1810 may overlap with the functional area of display panel 751 in the vertical direction 1014A, or in a direction perpendicular to the front surface 1007A of display panel 751.
[0703] At least a portion of the image sensor 1810 may overlap with the active area in the vertical direction 1014A (or in a direction perpendicular to the optical axis). Alternatively, at least a portion of the image sensor 1810 may overlap with the active area in a direction perpendicular to the display panel 751.
[0704] At least a portion of the image sensor 1810 may be disposed below the active area. In one example, the active area may be a display area or viewing area in which an image is displayed.
[0705] In one example, the area of action of the image sensor 1810 may be set or arranged perpendicular to the front surface 1007A or the rear surface 1007B of the display panel 751.
[0706] Each of camera modules 1000 and 2000-1 may be positioned behind the viewing area S1 of the portable terminal 200A. In one example, each of camera modules 1000 and 2000-1 may not be exposed to the viewing area S1 of the portable terminal 200A.
[0707] In one example, at least a portion of each of camera modules 1000 and 2000-1 may overlap with the viewing area S1 in the vertical direction 1014A or in a direction perpendicular to the front surface 1007A of the display panel 751. Alternatively, each of camera modules 1000 and 2000-1 may not overlap with the non-viewing area S2 in the vertical direction 1014A or in a direction perpendicular to the front surface 1007A of the display panel 751.
[0708] In another embodiment, a portion of each of the camera modules 1000 and 2000-1 may overlap with the non-viewing area S2 in the vertical direction 1014A or in a direction perpendicular to the front surface 1007A of the display panel 751.
[0709] Additionally, in one example, at least a portion of each of the camera modules 1000 and 2000-1 may overlap with at least one pixel within the active area of the display panel 751 in the vertical direction 1014A or in a direction perpendicular to the front surface 1007A of the display panel 751.
[0710] In one example, the reflective member 1322 may overlap with at least one pixel in the active area in the vertical direction 1014A or in a direction perpendicular to the front surface 1007A of the display panel 751. Additionally, at least one of the moving unit 1100, circuit board 1800 or 1800-1, or image sensor 1810 may overlap with at least one pixel in the active area in the vertical direction 1014A or in a direction perpendicular to the front surface 1007A of the display panel 751.
[0711] In one example, the first surface 1008A of the reflective member 1322 of each of the camera modules 1000 and 2000-1 may be positioned on or opposite to the functional area of the display panel 751 in the vertical direction 1014A.
[0712] In one example, the first surface 1008A of the reflective member 1322 of the camera modules 1000 and 2000-1 may be positioned on the vertical direction 1014A facing or opposite to at least one pixel in the functional area of the display panel 751.
[0713] Since each of the camera modules 1000 and 2000-1 is positioned behind the active area of the display panel 751, this embodiment can reduce the size of the light shield of the optical device 200A and increase the size of the display area (e.g., the active area). Additionally, in one example, the speaker of the sound output module 752 can be positioned on the side surface of the portable terminal 200A to further increase the size of the display area.
[0714] Furthermore, in each of the camera modules 1000 and 2000-1 according to these embodiments, the vertical distance d3 or d4 between the front surface 1007A (or rear surface 1007B) of the display panel 751 and the first surface 1008A of the reflective member 1322 is constant and unaffected by autofocus operation.
[0715] Therefore, despite the reduction in light intensity caused by the touchscreen panel 753 and display panel 751, a constant amount of light can still be introduced into the reflective member 1322. According to the above embodiment, since the amount of light introduced into the camera module is constant, in a configuration structure where the amount of light is reduced due to the touchscreen panel 753 and display panel 751, AF operation can be performed smoothly, and resolution degradation of the camera module can be avoided.
[0716] The features, structures, effects, etc., illustrated in the foregoing embodiments are included in at least one embodiment of this disclosure, but are not limited to a single embodiment. Furthermore, the features, structures, effects, etc., illustrated in the corresponding embodiments can be combined with other embodiments or modified by those skilled in the art. Therefore, all content related to such combinations and modifications should be considered to fall within the scope of this disclosure.
[0717] Industrial application
[0718] These embodiments can be used in a camera module and an optical device for smoothly performing autofocus operations in structural configurations where light levels are reduced due to the display module, without insufficient light.
Claims
1. An optical device, comprising: Display panel, including the active area; and The camera module is configured to receive light passing through the active area. The camera module includes: A fixing unit includes a housing and a lens, the lens being coupled to the housing and fixedly disposed at a position separated from the display panel; A moving unit includes a second circuit board, a retainer, and an image sensor. The retainer is disposed on the second circuit board, the image sensor is disposed on the second circuit board and separated from the lens, and a filter is coupled to the retainer and disposed between the lens and the image sensor; and A drive unit includes a coil and a magnet, the coil being disposed on one of the housing and the retainer, and the magnet being disposed on the other of the housing and the retainer. The moving unit is configured to move along the optical axis through the interaction between the coil and the magnet, and The lens is fixed in the direction of the optical axis and in a direction perpendicular to the optical axis, and the image sensor is moved along the optical axis to perform autofocus.
2. The optical device according to claim 1, wherein, At least a portion of the lens overlaps with the active area in the direction of the optical axis.
3. The optical device according to claim 1, wherein, At least a portion of the lens overlaps with the active area in a direction perpendicular to the display panel.
4. The optical device according to claim 1, wherein, At least a portion of the lens is disposed below the effective area.
5. The optical device according to claim 1, wherein, The effective area includes multiple pixels, and Wherein, at least a portion of the lens overlaps with at least one of the plurality of pixels in the optical axis direction.
6. The optical device according to claim 1, wherein, At least a portion of the image sensor overlaps with the active area in the direction of the optical axis.
7. The optical device according to claim 1, wherein, The active area is the display area on which the image is displayed.
8. The optical device according to claim 1, wherein, At least a portion of the image sensor is disposed below the active area.
9. The optical device according to claim 1, wherein, The image sensor and the active area are arranged parallel to each other.
10. The optical device according to claim 1, wherein, The display panel includes a non-viewing area surrounding the functional area.
11. The optical device according to claim 1, comprising a first circuit board disposed below the housing.
12. The optical device of claim 11, comprising a support member electrically connecting the first circuit board and the second circuit board.
13. The optical device according to claim 11, comprising: A support member electrically connects the first circuit board to the second circuit board and supports the image sensor so that the image sensor can move.
14. The optical device of claim 1, wherein the coil overlaps with the magnet in the direction of the optical axis.
15. The optical device of claim 1, wherein the coil overlaps with the magnet in a direction perpendicular to the optical axis.
16. The optical device of claim 1, comprising an elastic member coupled to the housing and the retainer.
17. An optical device, comprising: Display panel, including the active area; and The camera module is configured to receive light passing through the active area. The camera module includes: First circuit board; The housing is mounted on the first circuit board; The lens barrel is connected to the housing and is fixedly positioned at a location separated from the display panel; A moving unit includes a second circuit board, a retainer, and an image sensor. The second circuit board is disposed on and separated from the first circuit board. The retainer is disposed on the second circuit board, and the image sensor is disposed on the second circuit board and separated from the lens barrel. A filter is coupled to the retainer and disposed between the lens barrel and the image sensor. A drive unit is configured to move the moving unit in the optical axis direction, and The lens barrel is fixed in the direction of the optical axis and in a direction perpendicular to the optical axis, and the image sensor moves along the optical axis to perform autofocus.
18. An optical device, comprising: Display panel, including the active area; and The camera module is configured to receive light passing through the active area. The camera module includes: First circuit board; The housing is mounted on the first circuit board; The lens barrel is connected to the housing and is fixedly positioned at a location separated from the display panel; The moving unit includes a second circuit board, a holder, and an image sensor. The second circuit board is disposed on the first circuit board and separated from the first circuit board. The holder is disposed on the second circuit board and the image sensor is disposed on the second circuit board and separated from the lens barrel. A filter is coupled to the holder and disposed between the lens barrel and the image sensor. A support member that electrically connects the first circuit board to the second circuit board and supports the second circuit board; and A drive unit is configured to move the moving unit in the optical axis direction, and The lens barrel is fixed in the direction of the optical axis and in a direction perpendicular to the optical axis, and the image sensor moves along the optical axis to perform autofocus.
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