KR20200082212A - Camera device - Google Patents

Abstract

The embodiment relates to a camera apparatus, which comprises: a substrate; an image sensor disposed on the substrate; a lens holder disposed on the substrate; a lens barrel disposed in the lens holder; a liquid lens unit coupled to the lens barrel and including a liquid lens; a first terminal connected with the liquid lens; a second terminal disposed on the lens holder; and a conductor coupled to the first terminal and the second terminal. The first terminal includes a first region electrically connected to the liquid lens and a second region extending in a direction perpendicular to an optical axis direction from a side surface of the liquid lens unit and coupled to the conductor. The second terminal includes the first region which overlaps with the second region of the first terminal in the optical axis direction and is coupled with the conductor.

Description

Camera device

This embodiment relates to a camera device.

The contents described below provide background information for the present embodiment, but do not describe the prior art.

As the spread of various portable terminals is widely generalized and wireless Internet services are commercialized, the needs of consumers related to the portable terminals are also diversified, and various types of additional devices are mounted on the portable terminals.

One of them is a camera device that photographs a subject as a photograph or video. On the other hand, in recent camera devices, an auto focus function that automatically adjusts focus according to a distance of a subject is applied. In addition, an image stabilization function that prevents the image from being shaken due to camera shake is applied.

In recent years, the shape of the lens is deformed with the application of a current, and a liquid lens performing an autofocus function or an image stabilization function has been developed. On the other hand, when the liquid lens is spaced apart from the substrate on which the image sensor is disposed, a conduction structure between the liquid lens and the substrate is required.

This embodiment is intended to provide a camera device including a conductive structure between a liquid lens and a substrate.

The camera device according to the present embodiment includes a substrate; An image sensor disposed on the substrate; A lens holder disposed on the substrate; A lens barrel disposed in the lens holder; A liquid lens unit coupled to the lens barrel and including a liquid lens; A first terminal connected to the liquid lens; A second terminal disposed in the lens holder; And a conductor coupled to the first terminal and the second terminal, wherein the first terminal extends in a direction perpendicular to the optical axis direction at a side of the first lens and the liquid lens unit electrically connected to the liquid lens. A second region coupled to the conductor may be included, and the second terminal may include a first region overlapping with the second region of the first terminal in the optical axis direction and coupled with the conductor.

The first terminal may include an extension portion bent in the first region of the first terminal, and the second region of the first terminal may be formed by bending the extension portion.

The second terminal includes an extended portion bent in the first region of the second terminal, the first region of the second terminal is disposed on an upper surface of the lens holder, and the extended portion of the second terminal is the Is disposed on the side of the lens holder, the end of the extension of the second terminal may be soldered to the substrate.

The second area of the first terminal may be spaced apart from the upper surface of the lens holder.

The second region of the first terminal may be spaced apart from the first region of the second terminal, and at least a portion of the conductor may be disposed therebetween.

The second region of the first terminal may be spaced apart from the first region of the second terminal in an optical axis direction.

The liquid lens unit includes a liquid lens holder, the liquid lens is disposed in the liquid lens holder, the first terminal is disposed in the liquid lens holder, it can be electrically connected to the liquid lens.

The second terminal includes a plurality of terminals, the lens holder includes a side wall forming an outer surface of the lens holder, a partition wall connecting the top surface of the lens holder and the side wall, and the partition wall is the plurality of terminals Can be disposed between neighboring terminals.

The second terminal may include a conductive layer formed integrally with the lens holder through insert injection into the lens holder or integrally formed on the surface of the lens holder.

The plurality of terminals may be disposed on one side of the lens holder.

The first terminal includes an upper terminal connected to an individual electrode of the liquid lens and a lower terminal connected to a common electrode of the liquid lens, and the lower terminal is disposed on the liquid lens holder, and a part of the liquid lens holder is partially disposed. It may include a first lower terminal extending outwardly, and a second lower terminal having a plate shape connecting the first lower terminal and the common electrode of the liquid lens.

The lens holder includes a groove formed on an upper surface of the lens holder and the first terminal is disposed, and the conductor may be disposed in the groove of the lens holder.

One end of the first terminal may be connected to a terminal of the liquid lens, and the other end may be connected to the conductor.

The liquid lens includes four individual terminals formed at four corners of the upper surface of the liquid lens, and four common terminals formed at four corners of the lower surface of the liquid lens, and the first terminal is the liquid lens Four upper terminals disposed on the upper surface of the holder and connected to the four individual terminals of the liquid lens, and one lower terminal disposed on the lower surface of the liquid lens holder and connecting the four common terminals of the liquid lens. It may include.

Each of the upper terminal and the lower terminal may include a first portion disposed on a side surface of the liquid lens holder, and a second portion extending outward from the first portion and connected to the conductor.

At least a portion of the conductor may be disposed between the second portion and the second terminal of each of the upper terminal and the lower terminal.

The conductor may include Ag epoxy.

The camera device according to the present embodiment includes a base; A lens holder disposed on the base; A lens module disposed in the lens holder; A liquid lens module coupled with the lens module; A conducting member disposed in the lens holder and electrically connected to the liquid lens module; And a conductive material disposed in a part of the energizing member, wherein the liquid lens module includes a holder, a liquid lens disposed in the holder, and a terminal disposed in the holder and connected to a terminal of the liquid lens, The terminal of the liquid lens module protrudes from the holder and is spaced apart from the energizing member and overlaps with the energizing member in a vertical direction, and the energizing material is disposed between the terminal of the liquid lens module and the energizing member so that the liquid The terminal of the lens module and the energizing member may be connected.

Through this embodiment, a current-carrying structure capable of electrical connection without external pressure may be provided to a terminal connected to the liquid lens.

In addition, through this embodiment, it is possible to secure a stable resistance by increasing the contact area between terminals.

In addition, by applying a bond tank structure to the lens holder through this embodiment, it is possible to stably apply a conductive material and prevent short circuit defects.

In addition, a phenomenon in which the characteristics of the liquid lens is deteriorated due to high heat generated in a process such as soldering is prevented through electrical connection through Ag epoxy of the present embodiment.

In addition, this embodiment is advantageous in size reduction and increase in the number of connecting pins.

1 is a perspective view of a camera device according to the present embodiment.
2 is a sectional perspective view of a camera device according to the present embodiment.
3 is a plan view of a partial configuration of a camera device according to the present embodiment.
4 is a side view of a part of the camera device according to the present embodiment.
5 is an exploded perspective view of some components of the camera device according to the present embodiment.
6 and 7 are cross-sectional views of some components of a camera device according to the present embodiment.
8 is an exploded perspective view of some components of a camera device according to the present embodiment.
9 is a view showing an assembly process of the liquid lens module of the camera device according to the present embodiment.
10 is a perspective view showing a holder and a terminal of the liquid lens module of the camera device according to the present embodiment.
11 is a perspective view of a lens module of the camera device according to the present embodiment.
12A is a perspective view of a lens holder of a camera device according to this embodiment.
12B is a perspective view of the lens holder of the camera device of FIG. 12A seen from another direction.
12C is a perspective view of a part of the camera device according to the present embodiment.
13 is a plan view of a state in which the cover of the camera device according to the present embodiment is removed.
14 is a bottom view of some components of a camera device according to the present embodiment.
15 is a perspective view of a camera device according to a modification.
16 is an exploded perspective view of some components of a camera device according to a modification.
17A is a cross-sectional perspective view of some configurations of a camera device according to a modification.
17B is a cross-sectional perspective view of some configurations of a camera device according to another modification.
18A is a partial projection view of a part of the camera device according to the modification.
18B is a perspective view of a part of the camera device of FIG. 18A.
19 is a bottom perspective view of some components of a camera device according to a modification.
20 is a cross-sectional view of some components of a camera device according to a modification.
21 is a side view of some components of a camera device according to a modification.
22 is an exploded view of some components of a camera device according to a modification.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical spirit of the present invention is not limited to some embodiments described, but may be implemented in various different forms, and within the technical spirit scope of the present invention, one or more of its components between embodiments may be selectively selected. It can be used in combination or substitution.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention, unless specifically defined and described, can be generally understood by those skilled in the art to which the present invention pertains. It can be interpreted as meaning, and commonly used terms, such as predefined terms, may interpret the meaning in consideration of the contextual meaning of the related technology.

In addition, the terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In the present specification, a singular form may also include a plural form unless specifically stated in the phrase, and is combined with A, B, and C when described as "at least one (or more than one) of A and B, C". It can contain one or more of all possible combinations.

In addition, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the term is not limited to the nature, order, or order of the component.

And, when a component is described as being'connected','coupled', or'connected' to another component, the component is directly'connected','coupled', or'connected' to the other component In addition to the case, it may also include a case of'connected','coupled', or'connected' due to another component between the component and the other components.

Further, when described as being formed or disposed in the "top (top)" or "bottom (bottom)" of each component, "top (top)" or "bottom (bottom)" means that the two components are directly in contact with each other. This includes not only the case of contact, but also the case where one or more other components are formed or disposed between two components. In addition, when expressed as "up (up)" or "down (down)", the meaning of the downward direction as well as the upward direction based on one component may be included.

Hereinafter, the configuration of the optical device according to this embodiment will be described.

The optical device is any one of a mobile phone, a mobile phone, a smart phone, a portable smart device, a digital camera, a laptop computer, a terminal for digital broadcasting, PDA (Personal Digital Assistants), PMP (Portable Multimedia Player) and navigation. Can be However, the type of the optical device is not limited thereto, and any device for taking an image or picture may be included in the optical device.

The optical device may include a body. The body can form the appearance of the optical device. The main body can accommodate a camera device. A display unit may be disposed on one surface of the main body. For example, the display unit and the camera device may be disposed on one surface of the main body, and the camera device may be additionally disposed on the other surface of the main body (a surface positioned opposite to one surface).

The optical device may include a display unit. The display unit may be disposed on one surface of the main body. The display unit may output an image captured by the camera device.

The optical device may include a camera device. The camera device may be disposed on the body. At least a portion of the camera device may be accommodated inside the body. A plurality of camera devices may be provided. The camera device may be disposed on one surface of the main body and the other surface of the main body. The camera device can take an image of the subject.

Hereinafter, a configuration of the camera device according to the present embodiment and the modification will be described with reference to the drawings.

1 is a perspective view of a camera device according to this embodiment, FIG. 2 is a cross-sectional perspective view of a camera device according to this embodiment, FIG. 3 is a plan view of a part of the camera device according to this embodiment, and FIG. 4 is a It is a side view of some components of the camera apparatus according to the embodiment, FIG. 5 is an exploded perspective view of some components of the camera apparatus according to this embodiment, and FIGS. 6 and 7 are cross-sectional views of some components of the camera apparatus according to this embodiment. , FIG. 8 is an exploded perspective view of some components of the camera device according to the present embodiment, FIG. 9 is a view showing an assembly process of the liquid lens module of the camera device according to the present embodiment, and FIG. 10 is according to the present embodiment A perspective view showing a holder and a terminal of the liquid lens module of the camera device, FIG. 11 is a perspective view of the lens module of the camera device according to the present embodiment, and FIG. 12A is a perspective view of the lens holder of the camera device according to the present embodiment, 12B is a perspective view of the lens holder of the camera device of FIG. 12A viewed from another direction, FIG. 12C is a perspective view of some components of the camera device according to the present embodiment, and FIG. 13 is the cover of the camera device according to the present embodiment removed 14 is a bottom view of some components of the camera apparatus according to the present embodiment, FIG. 15 is a perspective view of the camera apparatus according to the modification example, and FIG. 16 is an exploded view of some components of the camera apparatus according to the modification example. It is a perspective view, FIG. 17A is a sectional perspective view of some components of a camera device according to a modification, FIG. 17B is a sectional perspective view of some components of a camera device according to another modification, and FIG. 18A is a partial configuration of a camera device according to a modification 18B is a perspective view of a part of the camera device of FIG. 18A, FIG. 19 is a bottom perspective view of a part of the camera device according to a modification, and FIG. 20 is a part of the camera device according to a modification 21 is a side view of a part of the camera device according to the modification, and FIG. 22 is an exploded view of a part of the camera device according to the modification.

The camera device may include a substrate 100. The substrate 100 may be a printed circuit board (PCB). The substrate 100 may include an upper surface. An image sensor 110, a base 200, and a lens holder 300 may be disposed on the upper surface of the substrate 100. However, the upper surface of the substrate 100 and the lens holder 300 may be spaced apart. The substrate 100 may include a terminal. The terminal of the substrate 100 may be connected to the energizing member 700.

The camera device may include an image sensor 110. The image sensor 110 may be disposed on the substrate 100. The image sensor 110 may be disposed on the substrate 100. The image sensor 110 may be disposed on the top surface of the substrate 100. The image sensor 110 may be electrically connected to the substrate 100. In one example, the image sensor 110 may be coupled to the substrate 100 by surface mounting technology (SMT). As another example, the image sensor 110 may be coupled to the substrate 100 by flip chip technology. The image sensor 110 may be arranged such that the lens and the optical axis are aligned. That is, the optical axis of the image sensor 110 and the optical axis of the lens may be aligned. The image sensor 110 may convert light irradiated to the effective image area of the image sensor 110 into an electrical signal. The image sensor 110 may be any one of a charge coupled device (CCD), a metal oxide semi-conductor (MOS), a CPD, and a CID.

The camera device may include a filter 120. The filter 120 may include an infrared filter. The infrared filter may block light from the infrared region from entering the image sensor. The infrared filter can reflect infrared light. Alternatively, the infrared filter can absorb infrared radiation. The infrared filter may be disposed between the liquid lens module 500 and the image sensor 110. The infrared filter may be disposed in the hole of the base 200.

The camera device may include a base 200. The base 200 may be disposed on the substrate 100. The base 200 may be disposed on the substrate 100. The base 200 may be disposed between the substrate 100 and the lens holder 300. The base 200 may include a groove formed on the upper surface and on which the filter 120 is disposed. A part of the lower surface of the base 200 may be recessed to form a space in which the image sensor 110 is disposed.

The camera device may include a lens holder 300. The lens holder 300 may be disposed on the substrate 100. The lens holder 300 may be disposed on the base 200. The lens holder 300 may be disposed on the base 200. The lens holder 300 may be coupled to the base 200. The lens holder 300 may be combined with the lens module 400. The lens holder 300 may be disposed in the cover 800. The lens holder 300 may be formed of an insulating material.

The lens holder 300 may include a first groove 310. The first groove 310 may be used as a groove or recess below. The first groove 310 may be a vent hole. The first groove 310 may be a passage through which gas is discharged. The first groove 310 may be a passage through which gas flows. The first groove 310 may be formed in the lens holder 300. The first groove 310 may be formed on the inner circumferential surface of the lens holder 300. The first groove 310 may be formed along the inner circumferential surface of the lens holder 300. The first groove 310 may be disposed between the base 200 and the liquid lens module 500. The first groove 310 may be formed from a lower region of the lens holder 300 to a region adjacent to the liquid lens module 500. In this case, the lower region of the lens holder 300 may be the upper region of the base 200. The first groove 310 may form a gas discharge passage connecting the upper surface of the base 200 to the lower surface of the liquid lens module 500. The first groove 310 may form a passage through which gas escapes. The first groove 310 may be a groove extending long along the optical axis direction. The first groove 310 may be opened at both ends with respect to the optical axis direction. The first groove 310 may form a passage between the lens holder 300 and the lens module 400 so that gas generated during the curing process of the adhesive 600 is discharged toward the liquid lens module 500. The first groove 310 may include a chamfer surface 311. The chamfer surface 311 may be disposed at the bottom of the first groove 310. The chamfer surface 311 may be inclined to connect the inner circumferential surface of the first groove 310 and the lower surface of the lens holder 300.

At least one first groove 310 may be formed. The first groove 310 may include a plurality of grooves. The first groove 310 may include two grooves. The two grooves of the first groove 310 may be symmetrically arranged around the optical axis. The first groove 310 may include three grooves. At this time, three grooves of the first groove 310 may be disposed at 120 degree intervals on the inner circumferential surface of the lens holder 300. The first groove 310 may include four grooves. At this time, four grooves of the first groove 310 may be disposed at intervals of 90 degrees on the inner circumferential surface of the lens holder 300. The first groove 310 may include five or more grooves. At this time, a plurality of grooves of the first groove 310 may be disposed at equal intervals on the inner circumferential surface of the lens holder 300.

Alternatively, the first groove 310 may be formed on the outer circumferential surface of the lens module 400 rather than the lens holder 300.

In this embodiment, since a vent hole is formed through the first groove 310, there is no need to apply an additional foreign matter intrusion prevention bond in the camera device.

The lens holder 300 may include a recess. At this time, the recess may include the first groove 310 mentioned above. In this embodiment, the gas discharge passage may be formed by the recess of the lens holder 300 between the base 200 and the liquid lens module 500 so that the gas is discharged to the outside. At this time, the gas may be generated by the adhesive 600. In more detail, the gas may be generated in the process of curing after the adhesive 600 is applied.

The recess may include a plurality of recesses. The recess may include two recesses. The recess may include two recesses that are symmetrical about the optical axis. In this embodiment, the two recesses may be spaced apart from the four second grooves 320. At this time, the adhesive applied to the four second grooves 320 moves along any one or more of the inner circumferential surface of the lens holder 300 and the outer circumferential surface of the lens module 400, but the recess may not be sealed.

In this embodiment, the first space 10 may be formed by the base 200, the lens holder 300 and the lens module 400. That is, the first space 10 may be formed between the base 200, the lens holder 300 and the lens module 400. In addition, the second space 20 may be formed by the liquid lens module 500, the lens holder 300, and the lens module 400. That is, the second space 20 may be formed between the liquid lens module 500, the lens module 400 and the lens holder 300. At this time, the first groove 310 may connect the first space 10 and the second space 20. The recess may connect the first space 10 and the second space 20. Through this, the passage in the order of the first space 10, the second space 20, the side space of the liquid lens module 500, the upper space of the liquid lens module 500 and the hole 811 of the cover 800 Can be formed.

The lens holder 300 may include a second groove 320. The second groove 320 may be used as a groove below. The second groove 320 may be a bonding tank to which the bond is applied. The second groove 320 may be formed on the lower surface of the lens holder 300. The second groove 320 may be formed on the inner circumferential surface of the lens holder 300. The second groove 320 may be formed on the inner surface of the lens holder 300. The second groove 320 may extend from the lower surface of the lens holder 300 and be spaced apart from the upper surface of the lens holder 300. Therefore, the second groove 320 may be distinguished from the first groove 310 extending from the lower surface to the upper surface of the lens holder 300. An adhesive may be applied to the second groove 320. An adhesive is disposed in the second groove 320 to combine the lens holder 300 and the lens module 400. The adhesive applied to the second groove 320 may move along the inner circumferential surface of the lens holder 300 and the outer circumferential surface of the lens module 400. However, the adhesive can only move to the extent that the first groove 310 is not sealed. The adhesive may be disposed between the outer circumferential surface of the lens module 400 and the lens holder 300. An adhesive is not disposed in at least a portion of the first groove 310 of the lens holder 300, and a gap or passage may be formed. The second groove 320 may include a chamfer surface 321. The chamfer surface 321 may be disposed at the bottom of the second groove 320. The chamfer surface 321 may be inclined to connect the inner circumferential surface of the second groove 320 and the lower surface of the lens holder 300. The chamfer surface 321 of the second groove 320 may be arranged to be inclined at a different inclination angle from the inner circumferential surface of the second groove 320.

The second groove 320 may include a plurality of grooves. The second groove 320 may include four grooves. The second groove 320 may include four grooves that are symmetrical about the optical axis. The four grooves may be arranged to be spaced at equal intervals on the inner circumferential surface of the lens holder 300.

In this embodiment, the lens holder 300 may include a lower surface facing the upper surface of the base 200. The adhesive 600 may be adhered to the upper surface of the base 200 and the lower surface of the lens holder 300. The first groove 310 of the lens holder 300 may extend from the lower surface of the lens holder 300 to the upper surface of the lens holder 300. Through this, the first groove 310 may form a through hole in the vertical direction (optical axis direction) between the lens holder 300 and the lens module 400.

The lens holder 300 may include a step portion 330. The step portion 330 may be formed on the outer circumferential surface of the lens holder 300. The step portion 330 may be formed at the bottom of the lens holder 300. The side plate 820 of the cover 800 may be disposed on the stepped portion 330. However, the step portion 330 and the side plate 820 of the cover 800 may be spaced apart.

The lens holder 300 may include an upper surface disposed inside the side wall 350. The upper surface of the lens holder 300 may include a first surface 341. The engaging portion 701 of the energizing member 700 may be disposed on the first surface 341 of the lens holder 300. The upper surface of the lens holder 300 may include a recess 343 recessed from the first surface 341. The upper surface of the lens holder 300 may include a groove 344 recessed from the recess 343. The lens holder 300 may include a groove 342 or a hole formed on an upper surface of the lens holder 300 adjacent to the partition wall 355. The groove 342 or the hole of the lens holder 300 may be a space for accommodating the adhesive over the partition wall 355.

The lens holder 300 may include a side wall 350. The side wall 350 may form an outer circumferential surface of the lens holder 300. The side wall 350 may protrude from the upper surface of the lens holder 300. A conductive material 750 may be disposed inside the sidewall 350.

The lens holder 300 may include a partition wall 335. The partition wall 335 may connect the upper surface of the lens holder 300 and the side wall 350. The partition wall 335 may include a plurality of partition walls. A conductive material 750 may be disposed between the plurality of partition walls. The plurality of partition walls may divide a space between the lens holder 300 and the liquid lens module 500 into a plurality of regions. Through this, the terminal 530 of the liquid lens module 500 and the energizing member 700 may be energized in each of the plurality of regions. The partition wall 335 may be disposed between neighboring terminals among a plurality of terminals of the energizing member 700.

The lens holder 300 may include an extension part 360. The extension part 360 may extend below the lower surface of the lens holder 300. The extension part 360 may extend to the upper surface of the substrate 100. However, the lower surface of the extension part 360 and the upper surface of the substrate 100 may be separated. An energizing member 700 may be disposed on the outer surface of the extension portion 360.

The lens holder 300 may include a groove 390. The groove 390 may be an adhesive receiving groove. The liquid lens module 500 and/or the lens module 400 may be fixed to the lens holder 300 by an adhesive disposed in the groove 390. The groove 390 may be formed on the upper surface of the lens holder 300. The groove 390 may be formed at each of the four corners of the lens holder 300. An adhesive may be disposed in the groove 390.

The camera device may include a lens module 400. The lens module 400 may be disposed on the lens holder 300. The lens module 400 may be disposed in the lens holder 300. The lens module 400 may be combined with the lens holder 300.

The lens module 400 may include a barrel 410. The barrel 410 may be a lens barrel. The barrel 410 may accommodate a lens therein. The inner peripheral surface of the barrel 410 may be formed in a shape corresponding to the inner peripheral surface of the lens. The barrel 410 may be formed of an insulating material.

The lens module 400 may include a lens. The lens may be a solid lens. The lens can be a plastic lens. The lens may include a plurality of lenses. Some of the plurality of lenses may be disposed in the first group lens region 420, and the other portions may be disposed in the second group lens region 430. The first group lens region 420 may be disposed above the second group lens region 430. For example, three lenses may be disposed in the first group lens region 420 and two lenses may be disposed in the second group lens region 430.

The lens module 400 may include a hole 440. The hole 440 may be a liquid lens accommodating part. The liquid lens module 500 may be disposed in the hole 440. The hole 440 may be formed to a height that is larger than a liquid lens module 500 by a predetermined size. In addition, the hole 440 may penetrate the liquid lens module 500 in the horizontal direction. Through this, the liquid lens module 500 may be inserted into the hole 440 of the lens module 400 in the horizontal direction.

The lens module 450 may include an adhesive hole 450. The adhesive hole 450 may be connected to the hole 440. The adhesive hole 450 may be formed to penetrate a part of the top plate of the barrel 410 of the lens module 450. The adhesive may be injected between the lens module 450 and the liquid lens module 500 through the adhesive hole 450.

The camera device may include a liquid lens module 500. The liquid lens module 500 may be combined with the lens module 400. The liquid lens module 500 may be spaced apart from the lens holder 300. The liquid lens module 500 may be aligned with the lens and image sensor 110. The liquid lens module 500 may be inserted into the lens module 400 in a horizontal direction and fixed.

The camera device may include a liquid lens unit. The liquid lens unit may include a liquid lens 510, a holder 520, and a terminal 530. The liquid lens unit is coupled to the barrel 410 and may include a liquid lens 510.

The liquid lens module 500 may include a liquid lens 510. The liquid lens 510 may be disposed in the holder 520. The liquid lens 510 may be disposed between a plurality of lenses. The liquid lens 510 may be disposed between the first group lens region 420 and the second group lens region 430.

The liquid lens 510 whose focal length is adjusted in response to the driving voltage may receive an operating voltage through an electrode. The upper electrode may have the same angular distance, and may include four individual terminals arranged in different directions. When an operating voltage is applied through the upper electrode and the lower electrode, the interface between the conductive liquid and the non-conductive liquid formed in the lens region may be deformed. The upper electrode may be an'upper terminal'. The lower electrode may be a'lower terminal'. The liquid lens 510 may be spaced apart from the solid lens. In this embodiment, the epoxy may be applied through the space between the liquid lens 510 and the solid lens, and active alignment of the liquid lens 510 may be performed.

One side of the liquid lens 510 may be applied with a voltage from the upper electrode. The other side of the liquid lens 510 may be applied with a voltage from the lower electrode. The liquid lens 510 may be described as an equivalent circuit as a capacitor between four individual electrodes and a common electrode. Here, the plurality of capacitors included in the equivalent circuit may have a small capacitance of about 200 picofarads (pF) level. In this embodiment, the upper electrode of the liquid lens 510 may be a separate terminal and the lower electrode may be a common terminal. Alternatively, the upper electrode of the liquid lens 510 may be a common terminal and the lower electrode may be a separate terminal. The interface formed between the conductive liquid and the non-conductive liquid may be modified by the current and/or voltage applied to the upper and lower electrodes of the liquid lens 510. Through this, any one or more of AF function and OIS function may be performed.

The liquid lens 510 may include a terminal 511. The terminal 511 may include a plurality of terminals. The terminal 511 may include four individual terminals formed at four corners of the upper surface of the liquid lens 510 and four common terminals formed at four corners of the lower surface of the liquid lens 510. The individual terminals may be individual electrodes. The common terminal may be a common electrode.

The liquid lens module 500 may include a holder 520. The holder 520 may be a liquid lens holder. The lower surface of the holder 520 may be disposed higher than the upper surface of the lens holder 300. A liquid lens 510 may be disposed inside the holder 520. The holder 520 may include a hole 521. The hole 521 may penetrate the holder 520 in the optical axis direction. A liquid lens 510 may be disposed in the hole 521.

The holder 520 may include a first groove 522. The first groove 522 may be formed on the upper surface of the holder 520. A portion of the upper terminal 531 and/or the first lower terminal 532-1 may be disposed in the first groove 522. The first groove 522 may be formed in a shape corresponding to a portion of the upper terminal 531 and/or the first lower terminal 532-1. The holder 520 may include a second groove 523. The second groove 523 may be formed on the side of the holder 520. A portion of the upper terminal 531 and/or the first lower terminal 532-1 may be disposed in the second groove 523. The second groove 523 may be formed in a shape corresponding to a portion of the upper terminal 531 and/or the first lower terminal 532-1. The holder 520 may include an adhesive groove. The adhesive groove of the holder 520 may be formed on any one or more of the upper and lower surfaces of the holder 520. An adhesive is disposed in the adhesive groove of the holder 520 to fix the terminal 530 to the holder 520.

The liquid lens module 500 may include a terminal 530. The terminal 530 may be a first terminal. The terminal 530 may be connected to the liquid lens 510. The terminal 530 may be connected to the terminal 511 of the liquid lens 510. The terminal 530 may be disposed in the holder 520. The terminal 530 may be disposed on the side of the liquid lens module 500. The terminal 530 may be at least partially disposed on the side of the holder 520. The terminal 530 may protrude from the side surface of the liquid lens module 500. The terminal 530 may be spaced apart from the energizing member 700. One end of the terminal 530 may be connected to the terminal 511 of the liquid lens 510 and the other end of the terminal 530 may be connected to the conductive material 750. At this time, the other end of the terminal 530 may be arranged to be immersed in the conductive material 750. A portion of the terminal 530 may protrude from the holder 520. A portion of the terminal 530 may be spaced apart from the energizing member 700 and overlap with the energizing member 700 in the vertical direction. The vertical direction may be parallel to the optical axis direction.

In this embodiment, the first terminal may include a first region that is electrically connected to the liquid lens 510 and a second region that extends in a direction perpendicular to the optical axis direction on the side surface of the liquid lens unit and is coupled with the conductor. At this time, the second terminal may include a first region that overlaps the second region of the first terminal in the optical axis direction and is coupled to the conductor. Here, the first terminal may be a terminal 530 of the liquid lens module 500 and the second terminal may be a current-carrying member 700 disposed in the lens holder 300. The first terminal may include an extension portion bent in the first region of the first terminal, and the second region of the first terminal may be formed by bending the extension portion. That is, the first terminal may include a structure bent in two stages. Here, the two-stage bending structure of the first terminal may correspond to the first coupling portion 531a, the second coupling portion 531b, and the connecting portion 531c. The second terminal (the energizing member 700) is the second terminal It may include an extended portion bent in the first region of. The first region of the second terminal may be disposed on the upper surface of the lens holder 300, and the extended portion of the second terminal may be disposed on the side surface of the lens holder 300. The end of the extension portion of the second terminal may be soldered to the substrate 100. The second area of the first terminal may be spaced apart from the top surface of the lens holder 300. The second region of the first terminal may be spaced apart from the first region of the second terminal, and at least a portion of the conductor may be disposed therebetween. In this case, the conductor may be a conductive material 750. The second region of the first terminal may be spaced apart from the first region of the second terminal in the optical axis direction. The first terminal is disposed on the holder 520 and can be electrically connected to the liquid lens 510.

The terminal 530 may include five terminals. At this time, three of the five terminals are disposed on the first side of the liquid lens module 500, and the other two of the five terminals are on the second side of the liquid lens module 500 opposite the first side. Can be deployed. At this time, the energizing member 700 may include five energizing members 700 corresponding to five terminals.

The terminal 530 may include an upper terminal 531. The upper terminal 531 may be disposed on the upper and outer surfaces of the holder 520.

The upper terminal 531 may include a plurality of terminals. The upper terminal 531 may include four terminals. The four terminals of the upper terminal 531 may be connected to the four individual terminals of the liquid lens 510, respectively. The upper terminal 531 may include a first portion disposed on the side of the holder 520 and a second portion extending outward from the first portion and connected to the conductive material 750. The upper terminal 531 may include 1-1 to 1-4 terminals 531-1, 531-2, 531-3, and 531-4. The 1-1 and 1-2 terminals 531-1 and 531-2 are disposed on one side of the holder 520, and the 1-3 and 1-4 terminals 531-3 and 531-4 are It may be disposed on the other side of the holder 520.

In this embodiment, each of the upper terminal 531 and the lower terminal 532 may include a first portion disposed on the side of the holder 520 and a second portion extending outward from the first portion and connected to the conductor. have. In this case, at least a portion of the conductor may be disposed between the second terminal of the upper terminal 531 and the lower terminal 532, respectively, and the second terminal of the energizing member 700.

The upper terminal 531 includes a first coupling portion 531a connected to the terminal 511 of the liquid lens 510, a second coupling portion 531b connected to the conductive material 750, and a first coupling portion ( 531a) and a second connecting portion 531b. The first coupling portion 531a is disposed on the upper surface of the holder 520, the connection portion 531c is disposed on the side of the holder 520, and the second coupling portion 531b is protruded from the side of the holder 520 Can. The connection portion 531c may form a right angle with the first coupling portion 531a and the second coupling portion 531b. Lower terminal(532)

The terminal 530 may include a lower terminal 532. The lower terminal 532 may be disposed on the lower surface and the outer surface of the holder 520. The lower terminal 532 may connect four common terminals of the liquid lens 510. In this embodiment, the lower terminal 532 can be used to remove the bridge and use it as an electrode connection terminal.

The lower terminal 532 is coupled to the lower surface and/or the upper surface of the holder 520 and the first lower terminal 532-1 disposed on the outer surface of the holder 520, and the lower surface of the holder 520 and the liquid lens ( 510) may include a plate-shaped second lower terminal 532-2 connecting the common terminal and the first lower terminal 532-1.

The first lower terminal 532-1 is disposed on the lower surface of the holder 520 and extends from the third coupling portion 532d and the third coupling portion 532d connected to the second lower terminal 532-2. The fourth coupling portion 532e and the third coupling portion 532d and the fourth coupling portion 532e, which are disposed on the outer surface of the holder 520 and partially protrude outward and electrically connected to the energizing member 700 It may include a connecting portion (532f) for connecting. A portion of the first lower terminal 532-1 may include a hook shape.

The second lower terminal 532-2 includes a first coupling portion 532a connected to the terminal 511 of the liquid lens 510, a second coupling portion 532b connected to the upper terminal 531, and a second coupling terminal 532b. It may include a connecting portion 532c connecting the first coupling portion 532a and the second coupling portion 532b.

In the liquid lens 510, a curvature of a semi-circular shape or a spherical shape such as a lens may be formed in a state in which two kinds of liquid are not mixed therein. In order to control the interface curvature of the liquid lens 510, four or more exposed terminals 511 may be formed on the outside. The first coupling portion 531a for connecting the upper terminal of the liquid lens 510 may be formed in a plane on the inside. Terminals may be connected to the side to connect the first coupling portion 531a individually formed in a plane to the external electrode. The first coupling portion 531a that is energized to the liquid lens 510 on the inside and the second coupling portion 531b for external energization are connected and may have a bending shape. A holder 520 that is an injection material for fixing the liquid lens 510 and the terminal 530 and fixing the liquid lens 510 and the terminal 530 may be provided. The holder 520 is structurally wrapped by the upper terminal 531 and a space for applying a current-carrying bond may be formed in the first coupling portion 531a. A second lower terminal 532-2, which is a metal terminal, may be provided to energize the lower terminal of the liquid lens 510. The second lower terminal 532-2 is assembled to the lower side of the holder 520, which is an injection material, and is bonded with a bond, and an electrically conductive bond is applied to a space formed in the flat electrode portion to be electrically coupled with the liquid lens 510. In order to connect the second lower terminal 532-2 with an external electrode, a first lower terminal 532-1 in which side and lower sides are exposed to the holder 520 in red may be provided. A second lower terminal (523-2) and a first lower terminal (2) are formed by forming a space in a portion of the second lower terminal (532-2) that faces the first lower terminal (532-1) in a plane. 532-1) may be electrically connected.

Through the structure of the liquid lens module 500 of this embodiment, it is possible to simplify the process and reduce the investment cost by reducing the number of parts. In addition, it may be possible to reduce material costs by reducing the number of parts. Compact height may be possible through component integration. The strength of the terminal can be improved compared to the conventional one. The electrode connection portion with the outside can be formed on the side without separately forming. Therefore, it may be possible to reduce the size in the planar direction.

Referring to FIG. 9, the liquid lens module 500 according to this embodiment may be assembled through the following procedure. First, the holder 520 in a state where the upper terminal 531 and the first lower terminal 532-1 are combined is prepared in an inverted state. When the holder 520 is in an inverted state, the liquid lens 510 coupled to the holder 520 may be arranged such that the size of the upper opening is smaller than the size of the lower opening. Then, a conductive adhesive is applied to the first coupling portion 531a of the upper terminal 531, and the liquid lens 510 is also inserted in an inverted state to be coupled. At this time, the first coupling portion 531a of the upper terminal 531 and the terminal of the upper surface of the liquid lens 510 are electrically connected. Thereafter, the second lower terminal 532-2 is coupled to the holder 520 and the liquid lens 510. The terminal of the lower surface of the liquid lens 510 and the second lower terminal 532-2 may be electrically connected by a conductive adhesive. Further, in this process, the first lower terminal 532-1 and the second lower terminal 532-2 may be electrically connected at the same time. The assembly of the liquid lens module 500 may be completed through the aforementioned process.

The camera device may include an adhesive 600. The adhesive 600 may combine the lens holder 300 and the base 200. The adhesive 600 may be disposed on any one or more of the upper surface of the base 200 and the lens holder 300 and between the side surface of the base 200 and the lens holder 300. The adhesive 600 may seal between the base 200 and the lens holder 300. Therefore, the gas generated in the process of curing the adhesive 600 may not be discharged between the base 200 and the lens holder 300 but may be discharged through the first groove 310 of the lens holder 300. In this embodiment, the adhesive 600 is configured to bond the lens holder 300 and the base 200, but in addition to the adhesive 600, the lens module 400 and the lens holder 300, the adhesive, the holder ( 520) and an adhesive for adhering the lens holder 300 may be additionally provided.

The camera device may include an energizing member 700. The energizing member 700 may include a terminal. The terminal of the energizing member 700 may be a second terminal. The energizing member 700 may be disposed on the lens holder 300. The energizing member 700 may electrically connect the substrate 100 and the liquid lens module 500. The energizing member 700 may be spaced apart from the cover 800. The energizing member 700 may be integrally formed.

The energizing member 700 may include a plurality of energizing members 700. The energizing member 700 may include five energizing members. The energizing member 700 may include first to fifth energizing members 700-1, 700-2, 700-3, 700-4, 700-5. The five energizing members may be electrically connected to the five first terminals, respectively. Here, the five first terminals may include four upper terminals and one common terminal. The energizing member 700 may include a plurality of terminals. Alternatively, a plurality of terminals of the energizing member 700 may be disposed on one side of the lens holder 300.

The energizing member 700 may include a coupling portion 701. The coupling portion 701 may be in contact with the conductive material 750. The conductive material 750 may be a conductive material. The conductive material 750 can be a conductor. The engaging portion 701 may form the same plane as the top surface of the lens holder 300. The coupling portion 701 may overlap the terminal 530 of the liquid lens module 500 in the vertical direction. The conductive material 750 may connect the first terminal, which is the terminal 530 of the liquid lens module 500, and the second terminal, which is the conductive member 700 disposed on the lens holder 300. The conductor may be combined with the first terminal and the second terminal.

The energizing member 700 is disposed on the holder 520 and connected to the first terminal connected to the liquid lens 510, the second terminal disposed on the lens holder 300 and connected to the substrate 100, and the first terminal and the second A conductive material 750 connecting the terminals may be included. That is, the energizing member 700 may be used as a concept including the terminal 530 of the liquid lens module 500. Previously, the conductive material 750 was described as one configuration of the conductive member 700, but the conductive material 750 may be described as a separate configuration from the conductive member 700.

The camera device may include a conductive material 750. The conductive material 750 may be disposed between the terminal 530 of the liquid lens module 500 and the conductive member 700. The conductive material 750 may connect the terminal 530 of the liquid lens module 500 and the conductive member 700. The energizing material 750 may be disposed on a part of the energizing member 700. The conductive material 750 may include any one or more of solder and conductive adhesive. The conductive material 750 may include Ag epoxy. The conductive material 750 may be disposed between the plurality of partition walls 355 of the lens holder 300.

In this embodiment, the lower surface of the liquid lens module 500 may be disposed above the lens holder 300. At this time, a conductive material 750 connecting the terminal 530 of the liquid lens module 500 and the energizing member 700 may be disposed on the lens holder 300. The adhesive 600 may be disposed between the lower surface of the lens holder 300 and the upper surface of the base 200. In one example, the lens holder 300 may include a groove formed on the top surface of the lens holder 300. At this time, a portion of the terminal 720 of the energizing member 700 may be disposed on the bottom surface of the groove of the lens holder 300, and the energizing material 750 may be disposed in the groove of the lens holder 300.

In this embodiment, a immersion structure in which a part of the terminal 530 of the liquid lens module 500 is immersed in the conductive material 750 may be formed. Through this, the terminal 530 of the liquid lens module 500 may be electrically connected without external pressure. Meanwhile, a stable resistance may be secured by increasing the contact area of the conductive material 750 between the terminal 530 of the liquid lens module 500 and the conductive member 700. The bond tank structure is applied to the lens holder 300 and Ag epoxy is applied to the bond tank to prevent stable coating and short circuit caused by the Ag epoxy bridge. The electrical connection through Ag epoxy can prevent the deterioration of the properties of the liquid lens 510 due to high heat.

The energizing member 700 may include a conductive layer 710 integrally formed on the surface of the lens holder 300. At this time, the conductive layer 710 may be formed on the surface of the lens holder 300 through a molded interconnection device (MID) technology. The conductive layer 710 extends along the upper surface of the lens holder 300 and the side surface of the lens holder 300, one end of which is connected to the substrate 100 and the other end of which is connected to the terminal 530 of the liquid lens module 500. have.

In a modification, the conductive layer 710 formed through MID technology in this embodiment may be changed to a terminal 720 formed through insert injection. The energizing member 700 may include a terminal 720 integrally formed through insert injection into the lens holder 300. The terminal 720 may have a different width from other parts in at least a part. The terminal 720 may include a plurality of terminals. The terminal 720 may include five terminals.

The camera device may include a cover 800. The cover 800 may cover the lens holder 300. The lens holder 300 may include a protrusion extending from the top surface of the lens holder 300 to the outside of the holder 520. A conductive adhesive may be disposed between the upper surface of the lens holder 300 and the protrusion of the lens holder 300. At this time, the conductive adhesive may include a conductive material 750. An adhesive for fixing the holder 520 to the lens holder 300 and a conductive adhesive are disposed in a part of the second space 20, and a gap or passage may be formed in the remaining part of the second space 20. The cover 800 may be combined with the base 200. The cover 800 may accommodate the lens holder 300 therein. The cover 800 may form the exterior of the camera device. The cover 800 may have a hexahedral shape with a lower surface open. The cover 800 may be non-magnetic. The cover 800 may be formed of a metal material. The cover 800 may be formed of a metal plate. The cover 800 may be connected to the ground portion of the substrate 100. Through this, the cover 800 may be grounded. The cover 800 may block electromagnetic interference (EMI). At this time, the cover 800 may be referred to as an'EMI shield can'.

The cover 800 may include a top plate 810 and a side plate 820. The cover 800 may include a top plate 810 including a hole 811 and a side plate 820 extending downward from the top plate 810.

In this embodiment, the gas is discharged between the lens module 400 and the hole 811 of the cover 800 through the lower surface of the liquid lens module 500, the side surface of the liquid lens module 500, and the upper surface of the liquid lens module 500. A passage can be formed. That is, gas moving around the liquid lens module 500 may be discharged to the hole 811 between the lens module 400 and the top plate 810 of the cover 800.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. You will understand. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (18)

Board;
An image sensor disposed on the substrate;
A lens holder disposed on the substrate;
A lens barrel disposed in the lens holder;
A liquid lens unit coupled to the lens barrel and including a liquid lens;
A first terminal connected to the liquid lens;
A second terminal disposed in the lens holder; And
It includes a conductor coupled to the first terminal and the second terminal,
The first terminal includes a first region electrically connected to the liquid lens and a second region extending in a direction perpendicular to the optical axis in a side surface of the liquid lens portion and coupled with the conductor,
The second terminal is a camera device including a first region that overlaps the second region of the first terminal in the optical axis direction and is coupled to the conductor. According to claim 1,
The first terminal includes an extension portion bent in the first region of the first terminal, and the second region of the first terminal is formed by bending the extension portion. According to claim 1,
The second terminal includes an extended portion bent in the first region of the second terminal,
The first region of the second terminal is disposed on the upper surface of the lens holder,
The extension portion of the second terminal is disposed on the side of the lens holder,
The end of the extension of the second terminal is a camera device that is soldered to the substrate. According to claim 3,
The second area of the first terminal is a camera device spaced apart from the image surface of the lens holder. According to claim 3,
The second area of the first terminal is spaced apart from the first area of the second terminal, and at least a portion of the conductor is disposed therebetween. The method of claim 5,
The second area of the first terminal is a camera device spaced apart from the first area of the second terminal in the optical axis direction. According to claim 1,
The liquid lens unit includes a liquid lens holder,
The liquid lens is disposed in the liquid lens holder,
The first terminal is disposed on the liquid lens holder, the camera device is electrically connected to the liquid lens. According to claim 1,
The second terminal includes a plurality of terminals,
The lens holder includes a side wall forming an outer surface of the lens holder, and a partition wall connecting an upper surface of the lens holder and the side wall,
The partition wall is a camera device disposed between neighboring terminals among the plurality of terminals. According to claim 1,
The second terminal is a camera device including a conductive layer formed integrally with the lens holder or integrally formed on the surface of the lens holder through insert injection into the lens holder. The method of claim 8,
The plurality of terminals are all arranged on one side of the lens holder camera device. The method of claim 7,
The first terminal includes an upper terminal connected to an individual electrode of the liquid lens and a lower terminal connected to a common electrode of the liquid lens,
The lower terminal is disposed on the liquid lens holder, a first lower terminal partially extending outward of the liquid lens holder, and a second lower plate-shaped second electrode connecting the first lower terminal and the common electrode of the liquid lens. Camera device including a terminal. According to claim 1,
The lens holder includes a groove formed on an upper surface of the lens holder and the first terminal is disposed,
The conductor is a camera device disposed in the groove of the lens holder. The method of claim 7,
One end of the first terminal is connected to the terminal of the liquid lens, the other end is connected to the conductor camera device. The method of claim 13,
The liquid lens includes four individual terminals formed at four corners of the upper surface of the liquid lens, and four common terminals formed at four corners of the lower surface of the liquid lens,
The first terminal is disposed on an upper surface of the liquid lens holder, and the four upper terminals are respectively connected to the four individual terminals of the liquid lens, and the four common terminals of the liquid lens are disposed on the lower surface of the liquid lens holder. A camera device comprising one lower terminal connecting a terminal. The method of claim 14,
Each of the upper terminal and the lower terminal includes a first portion disposed on a side surface of the liquid lens holder, and a second portion extending outward from the first portion and connected to the conductor. The method of claim 15,
At least a portion of the conductor is a camera device disposed between the second portion and the second terminal of each of the upper terminal and the lower terminal. According to claim 1,
The conductor is a camera device comprising Ag epoxy. Base;
A lens holder disposed on the base;
A lens module disposed in the lens holder;
A liquid lens module coupled with the lens module;
A conductive member disposed in the lens holder and electrically connected to the liquid lens module; And
It includes a conductive material disposed on a part of the conductive member,
The liquid lens module includes a holder, a liquid lens disposed in the holder, and a terminal disposed in the holder and connected to a terminal of the liquid lens,
The terminal of the liquid lens module protrudes from the holder and is spaced apart from the energizing member and overlaps the energizing member in a vertical direction,
The conductive material is disposed between the terminal of the liquid lens module and the conductive member to connect the terminal of the liquid lens module and the conductive member.

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