CN113189825A

CN113189825A - Mobile communication device and aperture module

Info

Publication number: CN113189825A
Application number: CN202010067278.6A
Authority: CN
Inventors: 金际远
Original assignee: Silicon Touch Tech Inc
Current assignee: Silicon Touch Tech Inc
Priority date: 2020-01-13
Filing date: 2020-01-20
Publication date: 2021-07-30
Also published as: TW202127121A

Abstract

The invention discloses a mobile communication device and an aperture module, wherein the aperture module comprises a liquid crystal layer, a first transparent electrode layer and a second transparent electrode layer which are arranged on one side of the liquid crystal layer at intervals, a third transparent electrode layer arranged on the other side of the liquid crystal layer, and a control unit. The third transparent electrode layer and the first transparent electrode layer can jointly act on a first annular switching area of the liquid crystal layer, and the third transparent electrode layer and the second transparent electrode layer can jointly act on a second annular switching area of the liquid crystal layer. The control unit is electrically coupled to the first transparent electrode layer, the second transparent electrode layer and the third transparent electrode layer. The aperture module achieves the effect of adjusting the light inlet quantity by matching a single liquid crystal layer with a plurality of transparent electrodes, so that the aperture module is light and thin in structure and is suitable for matching with a lens module of mobile communication equipment.

Description

Mobile communication device and aperture module

Technical Field

The present invention relates to a communication device, and more particularly, to a mobile communication device and a diaphragm module.

Background

The camera device of the existing mobile communication device (such as a smart phone or a tablet computer) does not include an aperture structure, so that the shooting performance of the camera device of the existing mobile communication device is difficult to be further improved. Further, since the conventional mobile communication device has a requirement for thickness, the diaphragm structure in the conventional camera is difficult to be applied to the image pickup apparatus of the conventional mobile communication device because of its complicated structure.

The present inventors have considered that the above-mentioned drawbacks can be improved, and have made intensive studies and use of scientific principles, and finally have proposed the present invention which is designed reasonably and effectively to improve the above-mentioned drawbacks.

Disclosure of Invention

Embodiments of the present invention provide a mobile communication device and an aperture module, which can effectively overcome the possible defects of the existing mobile communication device.

One embodiment of the present invention discloses a mobile communication device, comprising: a display; an image sensor electrically coupled to the display; the lens module is arranged corresponding to the image sensor in position and is defined with an optical axis; the aperture module is arranged on the optical axis of the lens module; the lens module and the aperture module are used for allowing a light ray to pass through and project to the image sensor, so that the image sensor transmits a signal corresponding to the light ray to the display; wherein, the diaphragm module contains: a liquid crystal layer; a first transparent electrode layer and a second transparent electrode layer spaced apart from each other on one side of the liquid crystal layer; the third transparent electrode layer is positioned on the other side of the liquid crystal layer away from the two first transparent electrode layers and the second transparent electrode layer; the third transparent electrode layer and the first transparent electrode layer can jointly act on a first annular switching area of the liquid crystal layer, and the third transparent electrode layer and the second transparent electrode layer can jointly act on a second annular switching area of the liquid crystal layer; wherein an inner diameter of the first annular switching region is different from an inner diameter of the second annular switching region, and a central axis of the first annular switching region and a central axis of the second annular switching region are both overlapped with the optical axis; the control unit is electrically coupled to the first transparent electrode layer, the second transparent electrode layer and the third transparent electrode layer, and can respectively control the first annular switching area and the second annular switching area to be switched between a light transmission mode and a shading mode; wherein, a light transmittance of any one of the first annular switching region and the second annular switching region in the light shielding mode is smaller than that in the light transmission mode; wherein the aperture module can selectively enable at least one of the first annular switching region and the second annular switching region to be in the light shading mode through the control unit.

Preferably, the aperture module further includes a transparent carrier, the first transparent electrode layer and the third transparent electrode layer are respectively disposed on two surfaces of the transparent carrier and the liquid crystal layer away from each other, and the second transparent electrode layer is sandwiched between the transparent carrier and the liquid crystal layer; wherein at least a portion of the first annular switching region overlaps the second annular switching region.

Preferably, an area of the third transparent electrode layer is not smaller than an area of the second transparent electrode layer.

Preferably, the first transparent electrode layer and the second transparent electrode layer are respectively formed with an opening, and a center point of each opening is located on the optical axis, and the shape of the first transparent electrode layer and the shape of the second transparent electrode layer respectively correspond to the first annular switching region and the second annular switching region.

Preferably, the third transparent electrode layer and the second transparent electrode layer are respectively formed with an opening, and a center point of each opening is located on the optical axis, and a shape of the third transparent electrode layer and a shape of the second transparent electrode layer respectively correspond to the first annular switching region and the second annular switching region.

Preferably, the first transparent electrode layer and the second transparent electrode layer are located on the same cross section, and the first transparent electrode layer is formed with a first opening, and the second transparent electrode layer is located in the first opening; the shape of the first transparent electrode layer and the shape of the second transparent electrode layer correspond to the first annular switching region and the second annular switching region, respectively, and the first annular switching region does not overlap the second annular switching region.

Preferably, the second transparent electrode layer and the first transparent electrode layer are separated by a gap, and the liquid crystal layer defines a linking region between the first annular switching region and the second annular switching region, the linking region corresponding to the gap in position; when the first annular switching area and the second annular switching area are both in the light shielding mode, the linkage area is also in the light shielding mode.

Preferably, the second transparent electrode layer is formed with a second opening, and a center point of the first opening and a center point of the second opening are both located on the optical axis.

Preferably, the liquid crystal layer includes: a first alignment layer and a second alignment layer; the outer rubber ring is connected with the inner surfaces of the first alignment layer and the second alignment layer, so that a closed space is formed by the outer rubber ring, the first alignment layer and the second alignment layer in a surrounding manner; and a liquid crystal filled in the closed space; the first transparent electrode layer and the second transparent electrode layer are arranged on an outer surface of the first alignment layer, and the third transparent electrode layer is arranged on an outer surface of the second alignment layer.

One embodiment of the present invention discloses an aperture module, including: a liquid crystal layer; a first transparent electrode layer and a second transparent electrode layer spaced apart from each other on one side of the liquid crystal layer; the third transparent electrode layer is positioned on the other side of the liquid crystal layer, which is far away from the two first transparent electrode layers and the second transparent electrode layer, and can act on a first annular switching area of the liquid crystal layer together with the first transparent electrode layer, and can act on a second annular switching area of the liquid crystal layer together with the second transparent electrode layer; wherein an inner diameter of the first annular switching region is different from an inner diameter of the second annular switching region, and a central axis of the first annular switching region overlaps a central axis of the second annular switching region; the control unit is electrically coupled to the first transparent electrode layer, the second transparent electrode layer and the third transparent electrode layer, and can respectively control the first annular switching area and the second annular switching area to be switched between a light transmission mode and a shading mode; wherein, a light transmittance of any one of the first annular switching region and the second annular switching region in the light shielding mode is smaller than that in the light transmission mode; wherein the aperture module can selectively enable at least one of the first annular switching region and the second annular switching region to be in the light shading mode through the control unit.

In summary, the mobile communication device and the aperture module disclosed in the embodiments of the present invention achieve the effect of adjusting the light incident amount by matching a single liquid crystal layer with a plurality of transparent electrodes, so that the aperture module has a light and thin structure and is suitable for matching with a lens module of the mobile communication device, thereby effectively improving the camera performance of the mobile communication device.

For a better understanding of the nature and technical content of the present invention, reference should be made to the following detailed description of the invention and the accompanying drawings, which are provided for illustration purposes only and are not intended to limit the scope of the invention in any way.

Drawings

Fig. 1 is a functional block diagram of a mobile communication device according to a first embodiment of the present invention.

Fig. 2 is a perspective view of the aperture module in fig. 1.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a cross-sectional view of fig. 2 along a sectional line IV-IV (the first annular switching region is in a light-shielding mode, and the second annular switching region is in a light-transmitting mode).

Fig. 5 is another schematic cross-sectional view of fig. 2 (the first annular switching region is in a light-transmitting mode, and the second annular switching region is in a light-blocking mode).

Fig. 6 is a schematic perspective view of an aperture module according to a second embodiment of the invention.

Fig. 7 is an exploded view of the aperture module of fig. 6.

Fig. 8 is a cross-sectional view taken along a section line VIII-VIII of fig. 6 (the first annular switching region is in a light-shielding mode, and the second annular switching region is in a light-transmitting mode).

Fig. 9 is another cross-sectional view taken along the section line VIII-VIII in fig. 6 (the first annular switching region is in the light shielding mode, and the second annular switching region is in the light shielding mode).

Fig. 10 is another cross-sectional view taken along the section line VIII-VIII in fig. 6 (the first annular switching region is in a light transmitting mode, and the second annular switching region is in a light transmitting mode).

Fig. 11 is a schematic cross-sectional view of an aperture module according to a third embodiment of the invention (the first annular switching region is in a light-shielding mode, and the second annular switching region is in a light-transmitting mode).

Fig. 12 is another schematic cross-sectional view of an aperture module according to a third embodiment of the invention (the second annular switching region is in the light shielding mode).

Fig. 13 is a schematic cross-sectional view of an aperture module according to a fourth embodiment of the invention (the first annular switching region is in a light-shielding mode, and the second annular switching region is in a light-transmitting mode).

Fig. 14 is another cross-sectional view of an aperture module according to a fourth embodiment of the invention (the second annular switching region is in the light shielding mode).

Detailed Description

The following is a description of the embodiments of the present disclosure related to "mobile communication device and aperture module" by specific embodiments, and those skilled in the art can understand the advantages and effects of the present disclosure from the disclosure of the present disclosure. The invention is capable of other and different embodiments and its several details are capable of modification and various other changes, which can be made in various details within the specification and without departing from the spirit and scope of the invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are used primarily to distinguish one element from another element or from one signal to another signal. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.

[ example one ]

Please refer to fig. 1 to 5, which are related to a first embodiment of the present invention, it should be noted that, the related numbers and shapes of the embodiments mentioned in the present embodiment are only used for describing the embodiments of the present invention in detail, so as to facilitate the understanding of the contents of the present invention, and not for limiting the protection scope of the present invention.

As shown in fig. 1, the present embodiment discloses a mobile communication device 1000 (e.g., a smart phone or a tablet computer) including a display 200, an image sensor 300, a lens module 400, and an aperture module 100.

The image sensor 300 is electrically coupled to the display 200, the lens module 400 is disposed corresponding to the image sensor 300, and the lens module 400 defines an optical axis C. The aperture module 100 is disposed on the optical axis C of the lens module 400, wherein the lens module 400 and the aperture module 100 are used for passing a light L and projecting the light L to the image sensor 300, so that the image sensor 300 can transmit a signal corresponding to the light L to the display 200.

It should be noted that the display 200 of the present embodiment has a touch function, so that the operation of the aperture module 100 can be controlled by the touch function; the position of the lens module 400 can facilitate the image sensor 300 to receive the light L passing through the lens module 400. In addition, in the embodiment, the mobile communication device 1000 only describes components related to the aperture module 100, and other components of the mobile communication device 1000 are not described herein.

The lens module 400 in this embodiment includes a plurality of lenses 401, which can be any combination of various lenses (such as convex lens, concave lens, and flat lens), and the invention is not limited herein. In this embodiment, the center lines of the lenses 401 are all located on the optical axis C, that is, the lenses 401 have the same optical axis.

In the embodiment, the aperture module 100 is located at a side of the lens module 400 away from the image sensor 300 (e.g., the left side of the lens module 400 in fig. 1), but the invention is not limited thereto. For example, in other embodiments not shown in the present disclosure, the aperture module 100 may also be located between the image sensor 300 and the lens module 400. The following describes a specific structure of the diaphragm module 100 of the present embodiment, but the present invention is not limited thereto.

In the present embodiment, the aperture module 100 includes a liquid crystal layer 5, a first transparent electrode layer 1, a second transparent electrode layer 2, a third transparent electrode layer 3, a transparent carrier 4, and a control unit 6. The number of the transparent carriers 4 may be one or more, three transparent carriers 4 are illustrated in this embodiment, and for convenience of illustration, the transparent carriers 4 are defined as a first transparent carrier 41, a second transparent carrier 42, and a third transparent carrier 43, but the invention is not limited thereto.

The area of the third transparent electrode layer 3 is not smaller than the area of the first transparent electrode layer 1 and not smaller than the area of the second transparent electrode layer 2, and the control unit 6 is electrically coupled to the first transparent electrode layer 1, the second transparent electrode layer 2, and the third transparent electrode layer 3.

However, in other embodiments not shown in the present disclosure, the aperture module 100 may be directly electrically coupled to an electronic device (not shown), and the control unit 6 is omitted; that is, the aperture module 100 can be used alone or in combination with other devices.

In another aspect, as shown in fig. 1, the aperture module 100 sequentially includes the first transparent carrier 41, the first transparent electrode layer 1, the second transparent carrier 42, the second transparent electrode layer 2, the liquid crystal layer 5, the third transparent electrode layer 3, and the third transparent carrier 43 along a direction (e.g., a left-to-right direction in fig. 1) toward the image sensor 300.

Further, as shown in FIG. 2 and FIG. 3, the first transparent electrode layer 1 and the second transparent electrode layer 2 are spaced apart from each other and located on one side of the liquid crystal layer 5 (e.g., on the left side of the liquid crystal layer 5 in FIG. 2), and the third transparent electrode layer 3 is located on the other side of the liquid crystal layer 5 (e.g., on the right side of the liquid crystal layer 5 in FIG. 2) away from the first transparent electrode layer 1 and the second transparent electrode layer 2.

Furthermore, the first transparent electrode layer 1 is disposed on the surface of the second transparent carrier 42 away from the liquid crystal layer 5, the second transparent electrode layer 2 is sandwiched between the second transparent carrier 42 and the liquid crystal layer 5, the third transparent electrode layer 3 is disposed on the surface of the third transparent carrier 43 close to the liquid crystal layer 5 (or, the third transparent electrode layer 3 is sandwiched between the third transparent carrier 43 and the liquid crystal layer 5), and the second transparent carrier 42 is sandwiched between the first transparent electrode layer 1 and the second transparent electrode layer 2.

In the above description, the arrangement of the components of the aperture module 100 according to the present embodiment is described, and the detailed structure and connection relationship of the components of the aperture module 100 are described below. As shown in fig. 1 to fig. 3, the first transparent carrier 41, the second transparent carrier 42, and the third transparent carrier 43 may be a square (e.g., rectangular or square) glass carrier or a transparent plastic carrier in this embodiment, and the shape of each of the

transparent carriers

41, 42, 43 may be adjusted and changed according to design requirements, which is not limited herein.

The first transparent electrode layer 1, the second transparent electrode layer 2, and the third transparent electrode layer 3 may be made of a transparent conductive material, such as Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), or Indium Gallium Zinc Oxide (IGZO), but the invention is not limited thereto. Furthermore, the first transparent electrode layer 1 and the second transparent electrode layer 2 are respectively annular in this embodiment, and a first opening 11 is formed around an inner edge of the first transparent electrode layer 1, a second opening 21 is formed around an inner edge of the second transparent electrode layer 2, and the third transparent electrode layer 3 has no opening. The first opening 11 and the second opening 21 are circular holes in the embodiment, and the inner diameter of the first opening 11 is larger than the inner diameter of the second opening 21, but the invention is not limited thereto.

The central axes of the first opening 11 and the second opening 21 are located on the optical axis C, and the first transparent electrode layer 1 and the second transparent electrode layer 2 are not provided with any electrode at the first opening 11 and the second opening 21, respectively.

As shown in fig. 3 to 5, the liquid crystal layer 5 can be divided into a first light-transmitting region 5a and a first annular switching region 5c surrounding the first light-transmitting region 5a, and the light transmittance of the first light-transmitting region 5a is not less than that of the first annular switching region 5 c. The liquid crystal layer 5 can also be divided into a second light-transmitting area 5b and a second annular switching area 5d surrounding the second light-transmitting area 5b, and the light transmittance of the second light-transmitting area 5b is not less than that of the second annular switching area 5 d.

Wherein at least a portion of the first annular switching region 5c overlaps the second annular switching region 5 d. The inner diameter of the first annular switching region 5C is different from the inner diameter of the second annular switching region 5d, and a central axis of the first annular switching region 5C and a central axis of the second annular switching region 5d are both overlapped with the optical axis C.

The shape of the first transparent electrode layer 1 and the shape of the second transparent electrode layer 2 correspond to the first annular switching region 5c and the second annular switching region 5d, respectively. Furthermore, the first light-transmitting region 5a is located corresponding to the first opening 11 of the first transparent electrode layer 1, and the second light-transmitting region 5b is located corresponding to the second opening 21 of the second transparent electrode layer 2.

Preferably, the outer shape of the first light-transmitting region 5a is equal to the outer shape of the first opening 11, the outer shape of the second light-transmitting region 5b is equal to the outer shape of the second opening 21, and the edge of the first light-transmitting region 5a is aligned with the inner edge of the first transparent electrode layer 1 along the direction parallel to the optical axis C, and the edge of the second light-transmitting region 5b is aligned with the inner edge of the second transparent electrode layer 2 along the direction parallel to the optical axis C, but the invention is not limited thereto. For example, in other embodiments not shown in the present disclosure, the size of the first light-transmitting area 5a may be slightly smaller or slightly larger than the shape of the first opening 11.

In other words, each region of the liquid crystal layer 5 may be defined by the first transparent electrode layer 1 and the second transparent electrode layer 2 in the present embodiment. The first annular switching region 5c and the second annular switching region 5d correspond to the shapes of the first transparent electrode layer 1 and the second transparent electrode layer 2, respectively. The positions of the first light-transmitting region 5a and the second light-transmitting region 5b respectively correspond to the first opening 11 and the second opening 21, and the shapes of the first light-transmitting region 5a and the second light-transmitting region 5b are equal to the shapes of the first opening 11 and the second opening 21.

More specifically, in the present embodiment, the liquid crystal layer 5 sequentially includes a first alignment layer 51, a liquid crystal 54, and a second alignment layer 52, and the liquid crystal layer 5 includes an outer rubber ring 53 connected to inner surfaces of the two

alignment layers

51, 52, wherein the outer rubber ring 53 is connected to the first alignment layer 51 and the second alignment layer 52 to jointly surround and form a closed space S1, and the liquid crystal 54 is filled in the closed space S1.

It should be noted that the liquid crystal 54 in this embodiment includes a plurality of liquid crystal molecules, and the main functions of the first alignment layer 51 and the second alignment layer 52 are to arrange the liquid crystal molecules in the liquid crystal 54 according to design requirements, so that the liquid crystal molecules in the liquid crystal 54 can achieve a predetermined deflection effect.

Furthermore, when the liquid crystal layer 5 is taken as a center, the second transparent electrode layer 2 is disposed on the outer surface of the first alignment layer 51 away from the liquid crystal 54, the first transparent electrode layers 1 are disposed at intervals on one side of the second transparent electrode layer 2 away from the liquid crystal layer 5, and the third transparent electrode layer 3 is disposed on the outer surface of the second alignment layer 52 away from the liquid crystal 54.

The first transparent carrier 41 is disposed on a side of the first transparent electrode layer 1 away from the liquid crystal layer 5 (e.g., the left side of the first transparent electrode layer 1 in fig. 4), the second transparent carrier 42 is sandwiched between the first transparent electrode layer 1 and the second transparent electrode layer 2, and the third transparent carrier 43 is disposed on a side of the third transparent electrode layer 3 away from the liquid crystal layer 5 (e.g., the right side of the third transparent electrode layer 3 in fig. 4).

In this embodiment, the third transparent electrode layer 3 and the first transparent electrode layer 1 can jointly act on the first annular switching region 5c of the liquid crystal layer 5, and the third transparent electrode layer 3 and the second transparent electrode layer 2 can jointly act on the second annular switching region 5d of the liquid crystal layer 5.

Further, in the liquid crystal layer 5 provided in this embodiment, the electric field between the third transparent electrode layer 3 and the first transparent electrode layer 1 changes the liquid crystal molecules in the liquid crystal 54 in the first annular switching region 5c to deflect, so that the first annular switching region 5c of the liquid crystal layer 5 can allow the light L to pass through or block the light L. Moreover, the liquid crystal layer 5 can also change the liquid crystal molecule deflection in the liquid crystal 54 in the second annular switching region 5d through the electric field between the third transparent electrode layer 3 and the second transparent electrode layer 2, so that the light L can pass through or be blocked by the second annular switching region 5d of the liquid crystal layer 5.

In other words, when the electric field between the third transparent electrode layer 3 and the first transparent electrode layer 1 is changed, the liquid crystal molecules in the liquid crystal 54 in the first light-transmitting region 5a are not affected by the electric field between the two

transparent electrode layers

1 and 3, so that the light L can be kept in a state of passing through; furthermore, when the electric field between the third transparent electrode layer 3 and the second transparent electrode layer 2 is changed, the liquid crystal molecules in the liquid crystal 54 in the second light-transmitting region 5b are not affected by the electric field between the two

transparent electrode layers

2 and 3, so that the light L can be kept in the state of passing through the liquid crystal.

As shown in fig. 1 and fig. 2, the control unit 6 may be a controller or a control circuit in the embodiment, which is not limited herein. When the control unit 6 is electrically coupled to the third transparent electrode layer 3 and the first transparent electrode layer 1, the first annular switching region 5c can be controlled to switch between a light transmitting mode and a light shielding mode. When the control unit 6 is electrically coupled to the third transparent electrode layer 3 and the second transparent electrode layer 2, the second annular switching region 5d can be controlled to switch between a light-transmitting mode and a light-shielding mode.

Further, as shown in fig. 4 and 5, a light transmittance of any one of the first annular switching region 5c and the second annular switching region 5d in the light shielding mode is smaller than that in the light transmission mode. In this embodiment, the light transmittance of any one of the first annular switching region 5c and the second annular switching region 5d in the light shielding mode is lower than 50% (preferably lower than 20%), but the invention is not limited thereto.

Furthermore, since the edge of the first annular switching region 5c is adjacent to the electric field formed between the third transparent electrode layer 3 and the first transparent electrode layer 1, when the first annular switching region 5c is in the light-shielding mode, the light transmittance of the first light-transmitting region 5a gradually increases from the vicinity of the first annular switching region 5c toward the direction away from the first annular switching region 5 c.

In contrast, since the edge of the second annular switching region 5d is adjacent to the electric field formed between the third transparent electrode layer 3 and the second transparent electrode layer 2, when the second annular switching region 5d is in the light-shielding mode, the light transmittance of the second light-transmitting region 5b gradually increases from the vicinity of the second annular switching region 5d toward a direction away from the second annular switching region 5 d.

Further, the control unit 6 can independently apply a voltage to the third transparent electrode layer 3 and the first transparent electrode layer 1 to form a predetermined electric field between the two

transparent electrode layers

1 and 3, so as to deflect the liquid crystal molecules in the liquid crystal 54 in the first annular switching region 5 c. Furthermore, the control unit 6 can apply a voltage to the third transparent electrode layer 3 and the second transparent electrode layer 2 independently to form a predetermined electric field between the two

transparent electrode layers

2 and 3, so as to deflect the liquid crystal molecules in the liquid crystal 54 in the second annular switching region 5 d.

As described above, as shown in fig. 1 to 5, the aperture module 100 can selectively enable at least one of the first annular switching region 5c and the second annular switching region 5d to be in the light blocking mode through the control unit 6 to form an incident light amount corresponding to the first opening 11 or the second opening 21. Accordingly, the structure of the aperture module 100 is suitable for matching with the lens module 400 of the mobile communication device 1000, and can adjust the light incident amount thereof, thereby effectively improving the image capturing performance of the mobile communication device 1000.

For example, as shown in fig. 2 and 4, the first annular switching region 5c is in the light blocking mode, and the second annular switching region 5d is in the light transmitting mode, so the aperture module 100 has the first opening 11 as its aperture. As shown in fig. 2 and 5, the first annular switching region 5c is in the light transmitting mode, and the second annular switching region 5d is in the light blocking mode, so that the aperture module 100 has the second opening 21 as its aperture. In addition, in other embodiments not shown in the present disclosure, when the first annular switching area 5c and the second annular switching area 5d are both in the light shielding mode, the aperture module 100 also uses the second opening 21 as its aperture.

[ example two ]

Please refer to fig. 6 to 10, which illustrate a second embodiment of the present invention. The present embodiment is similar to the first embodiment, so the same parts of the two embodiments are not described again, and the differences between the present embodiment and the first embodiment are roughly described as follows:

in this embodiment, as shown in fig. 6 to 8, the aperture module 100 omits the first transparent carrier 41 in the first embodiment. The first transparent electrode layer 1 and the second transparent electrode layer 2 are disposed on an outer surface of the first alignment layer 51 (sandwiched between the second transparent carrier 42 and the first alignment layer 51), and the third transparent electrode layer 3 is disposed on an outer surface of the second alignment layer 52 (sandwiched between the third transparent carrier 43 and the second alignment layer 52).

The first transparent electrode layer 1 and the second transparent electrode layer 2 are located on the same cross section, but are not the same transparent electrode layer. The cross-section may be square or circular, but the present invention is not limited thereto.

The first transparent electrode layer 1 is formed with the first opening 11, and the second transparent electrode layer 2 is located in the first opening 11. The second transparent electrode layer 2 is separated from the first transparent electrode layer 1 by a gap 5e, and the second opening 21 is formed in the second transparent electrode layer 2.

A center point of the first opening 11 and a center point of the second opening 21 are both located on the optical axis C, and preferably, the shape of the first opening 11 is equal to the shape of the first light-transmitting area 5a, and the shape of the second opening 21 is equal to the shape of the second light-transmitting area 5 b. Wherein the inner diameter of the first opening 11 is larger than the inner diameter of the second opening 21.

Wherein the shape of the first transparent electrode layer 1 and the shape of the second transparent electrode layer 2 correspond to the first annular switching region 5c and the second annular switching region 5d, respectively, and the first annular switching region 5c does not overlap the second annular switching region 5 d.

Wherein the liquid crystal layer 5 defines a linking region between the first annular switching region 5c and the second annular switching region 5d, the linking region corresponding to the gap 5e in position; when the first annular switching region 5c and the second annular switching region 5d are both in the light blocking mode, the electric field between the first transparent electrode layer 1, the second transparent electrode layer 2, and the third transparent electrode layer 3 simultaneously affects and deflects the liquid crystal molecules in the liquid crystal 54, and the electric field covers the interlocking region of the gap 5e, so that the liquid crystal molecules in the liquid crystal 54 corresponding to the interlocking region are also deflected, and the interlocking region is also in the light blocking mode.

As can be seen from the above description, the cross section sequentially includes the first transparent electrode layer 1, the first opening 11, the gap 5e, the second transparent electrode layer 2, and the second opening 21 from the outside to the center.

As shown in fig. 8, when the control unit 6 drives the third transparent electrode layer 3 and the first transparent electrode layer 1, liquid crystal molecules in the liquid crystal 54 in the first annular switching region 5c are deflected by an electric field, so that the first annular switching region 5c is in the light-shielding mode, and liquid crystal molecules in the liquid crystal 54 in the second annular switching region 5d are not influenced by the electric field, so that the second annular switching region 5d is still in the light-transmitting mode. That is, the aperture module 100 of fig. 8 uses the first opening 11 as its aperture, and light can pass through the first light-transmitting area 5 a.

As shown in fig. 9, when the control unit 6 drives the third transparent electrode layer 3, the first transparent electrode layer 1, and the second transparent electrode layer 2 simultaneously, liquid crystal molecules in the liquid crystal 54 in the first annular switching region 5c and the second annular switching region 5d are deflected by the influence of an electric field, so that the first annular switching region 5c and the second annular switching region 5d are both in the light shielding mode, and the linkage region is also in the light shielding mode due to the influence of an area electric field. That is, the aperture module 100 of fig. 9 uses the second opening 21 as its aperture, and light can penetrate through the second transparent region 5 b.

As shown in fig. 10, when the control unit 6 does not drive the third transparent electrode layer 3, the first transparent electrode layer 1, and the second transparent electrode layer 2, liquid crystal molecules in the liquid crystal 54 in the first annular switching region 5c and the second annular switching region 5d are not affected by an electric field and are deflected, so that the first annular switching region 5c and the second annular switching region 5d are both in the light transmission mode, and the linkage region is also in the light transmission mode because of not being affected by the electric field. That is, the aperture module 100 of fig. 10 uses the total inner diameter of the first opening 11 and the second opening 21 as the aperture, and the light can simultaneously penetrate through the first transparent area 5a and the second transparent area 5 b.

[ third example ]

Please refer to fig. 11 and 12, which illustrate a third embodiment of the present invention. The present embodiment is similar to the first embodiment, so the same parts of the two embodiments are not described again, and the differences between the present embodiment and the first embodiment are roughly described as follows:

in this embodiment, the aperture module 100 omits the first transparent carrier 41 in the first embodiment, so that the first transparent electrode layer 1 is exposed.

The arrangement positions of the components of the aperture module 100 are the same as those of the first embodiment, except that the inner edge of the first transparent electrode layer 1 surrounds the first opening 11, and the inner edge of the second transparent electrode layer 2 surrounds the second opening 21. Wherein the inner diameter of the first opening 11 is smaller than the inner diameter of the second opening 21, but the central axes of the first opening 11 and the second opening 21 overlap each other, and the first transparent electrode layer 1 and the second transparent electrode layer 2 are not provided with any electrode at the first opening 11 and the second opening 21 respectively

[ example four ]

Please refer to fig. 13 and 14, which illustrate a fourth embodiment of the present invention. The present embodiment is similar to the first embodiment, so the same parts of the two embodiments are not described again, and the differences between the present embodiment and the first embodiment are roughly described as follows:

in this embodiment, the aperture module 100 omits the first transparent carrier 41 in the first embodiment, the number of the third transparent electrode layers 3 is increased, and the two third transparent electrode layers 3 are respectively disposed on the surfaces of the second transparent carrier 42 and the third transparent carrier 43 away from each other.

The aperture module 100 includes the third transparent electrode layer 3, the second transparent carrier 42, the first transparent electrode layer 1, the liquid crystal layer 5, the second transparent electrode layer 2, the third transparent carrier 43, and the third transparent electrode layer 3 in sequence along a direction (from left to right in fig. 13) toward the image sensor 300.

The first transparent electrode layer 1 and the second transparent electrode layer 2 are respectively formed with an

opening

11, 21, and a central axis of each of the

openings

11, 21 overlaps with each other, and a shape of the first transparent electrode layer 1 and a shape of the second transparent electrode layer 2 correspond to the first annular switching region 5c and the second annular switching region 5d, respectively.

The opening 11 formed in the first transparent electrode layer 1 is defined as the first opening 11, the opening 21 formed in the second transparent electrode layer 2 is defined as the second opening 21, and an inner diameter of the first opening 11 is larger than an inner diameter of the second opening 21.

In this embodiment, the first transparent electrode layer 1 and the third transparent electrode layer 3 (e.g., the third transparent electrode layer 3 on the right side in fig. 13) away from the first transparent electrode layer can jointly act on the first annular switching region 5c of the liquid crystal layer 5, and the second transparent electrode layer 2 and the third transparent electrode layer 3 (e.g., the third transparent electrode layer 3 on the left side in fig. 13) away from the second transparent electrode layer can jointly act on the second annular switching region 5d of the liquid crystal layer 5.

Further, as shown in fig. 13, in the liquid crystal layer 5 provided in this embodiment, liquid crystal molecules in the liquid crystal 54 in the first annular switching region 5c are changed and deflected by an electric field between the first transparent electrode layer 1 and the corresponding third transparent electrode layer 3, so that the first annular switching region 5c of the liquid crystal layer 5 can allow the light L to pass through or block the light L.

As shown in fig. 14, the liquid crystal layer 5 changes and deflects the liquid crystal molecules in the liquid crystal 54 in the second annular switching region 5d by the electric field between the second transparent electrode layer 2 and the corresponding third transparent electrode layer 3, so that the light L can pass through or be blocked by the second annular switching region 5d of the liquid crystal layer 5.

In other embodiments not shown in the present disclosure, the outer surfaces of the two third transparent electrode layers 3 away from each other may also be respectively provided with a transparent carrier, so as to achieve the protection effect.

[ technical effects of embodiments of the present invention ]

In addition, the aperture module disclosed by the embodiment of the invention is different from the prior art, and two aperture structures are integrated and applied to a single liquid crystal layer, so that the overall thickness is effectively reduced, and the aperture module can be more suitable for thinned mobile communication equipment.

The disclosure is only a preferred embodiment of the invention and is not intended to limit the scope of the invention, so that all equivalent technical changes made by using the contents of the specification and drawings are included in the scope of the invention.

Claims

1. A mobile communication device, characterized in that the mobile communication device comprises:

a display;

an image sensor electrically coupled to the display;

the lens module is arranged corresponding to the image sensor in position and is defined with an optical axis; and

the aperture module is arranged on the optical axis of the lens module; the lens module and the aperture module are used for allowing a light ray to pass through and project to the image sensor, so that the image sensor transmits a signal corresponding to the light ray to the display; wherein, the diaphragm module contains:

a liquid crystal layer;

a first transparent electrode layer and a second transparent electrode layer spaced apart from each other on one side of the liquid crystal layer;

the third transparent electrode layer is positioned on the other side of the liquid crystal layer away from the two first transparent electrode layers and the second transparent electrode layer; the third transparent electrode layer and the first transparent electrode layer can jointly act on a first annular switching area of the liquid crystal layer, and the third transparent electrode layer and the second transparent electrode layer can jointly act on a second annular switching area of the liquid crystal layer; wherein an inner diameter of the first annular switching region is different from an inner diameter of the second annular switching region, and a central axis of the first annular switching region and a central axis of the second annular switching region are both overlapped with the optical axis; and

a control unit electrically coupled to the first transparent electrode layer, the second transparent electrode layer, and the third transparent electrode layer, for respectively controlling the first annular switching region and the second annular switching region to switch between a light transmission mode and a shading mode; wherein, a light transmittance of any one of the first annular switching region and the second annular switching region in the light shielding mode is smaller than that in the light transmission mode;

wherein the aperture module can selectively enable at least one of the first annular switching region and the second annular switching region to be in the light shading mode through the control unit.

2. The mobile communication device of claim 1, wherein the aperture module further comprises a transparent carrier, the first transparent electrode layer and the third transparent electrode layer are respectively disposed on two surfaces of the transparent carrier and the liquid crystal layer away from each other, and the second transparent electrode layer is sandwiched between the transparent carrier and the liquid crystal layer; wherein at least a portion of the first annular switching region overlaps the second annular switching region.

3. The mobile communication device according to claim 2, wherein an area of the third transparent electrode layer is not smaller than an area of the second transparent electrode layer.

4. The mobile communication device of claim 3, wherein the first transparent electrode layer and the second transparent electrode layer are each formed with an opening, and a center point of each opening is located on the optical axis, and a shape of the first transparent electrode layer and a shape of the second transparent electrode layer correspond to the first annular switching region and the second annular switching region, respectively.

5. The mobile communication device of claim 3, wherein the third transparent electrode layer and the second transparent electrode layer are each formed with an opening, and a center point of each opening is located on the optical axis, and a shape of the third transparent electrode layer and a shape of the second transparent electrode layer correspond to the first annular switching region and the second annular switching region, respectively.

6. The mobile communication device of claim 1, wherein the first transparent electrode layer and the second transparent electrode layer are located on the same cross section, and the first transparent electrode layer is formed with a first opening, and the second transparent electrode layer is located in the first opening; the shape of the first transparent electrode layer and the shape of the second transparent electrode layer correspond to the first annular switching region and the second annular switching region, respectively, and the first annular switching region does not overlap the second annular switching region.

7. The mobile communication device of claim 6, wherein the second transparent electrode layer is separated from the first transparent electrode layer by a gap, and the liquid crystal layer defines a linking region between the first annular switching region and the second annular switching region, the linking region corresponding to the gap in position; when the first annular switching area and the second annular switching area are both in the light shielding mode, the linkage area is also in the light shielding mode.

8. The mobile communication device of claim 6, wherein the second transparent electrode layer forms a second opening, and a center point of the first opening and a center point of the second opening are both located on the optical axis.

9. The mobile communication device of claim 6, wherein the liquid crystal layer comprises:

a first alignment layer and a second alignment layer;

the outer rubber ring is connected with the inner surfaces of the first alignment layer and the second alignment layer, so that a closed space is formed by the outer rubber ring, the first alignment layer and the second alignment layer in a surrounding manner; and

a liquid crystal filled in the closed space;

the first transparent electrode layer and the second transparent electrode layer are arranged on an outer surface of the first alignment layer, and the third transparent electrode layer is arranged on an outer surface of the second alignment layer.

10. An aperture module, characterized in that the aperture module comprises:

a liquid crystal layer;

the third transparent electrode layer is positioned on the other side of the liquid crystal layer, which is far away from the two first transparent electrode layers and the second transparent electrode layer, and can act on a first annular switching area of the liquid crystal layer together with the first transparent electrode layer, and can act on a second annular switching area of the liquid crystal layer together with the second transparent electrode layer; wherein an inner diameter of the first annular switching region is different from an inner diameter of the second annular switching region, and a central axis of the first annular switching region overlaps a central axis of the second annular switching region; and