Dimming Module

Abstract

To provide a technique that can avoid generation of heat between power supply electrodes of a light control module.SOLUTION: In a light control module 10-1, a first power supply electrode 1-1 is provided at an end of a transparent conductive membrane of one transparent conductive film of a pair of transparent conductive films of a light control film 13, and a second power supply electrode 2-1 is provided at an end of a transparent conductive membrane of the other transparent conductive film. These power supply electrodes are arranged adjacent to one side 14 of the light control film in plan view of the light control film. A cutting-plane line 12-1 passes through between the power supply electrodes, starts from the side, is longer than the length of the power supply electrodes in a direction directed to a side 15 opposite to the side, and is shorter than the distance from the side to an intermediate point between the side and the opposite side, and the cutting-plane line divides at least one of the pair of transparent conductive films and a light control layer from each other to extend the length of a conductive path reaching the second power supply electrode from the first power supply electrode.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an electrode structure of a light control module, and more particularly to a structure of a light control module that can avoid a heat generation problem between electrodes that supply power to a light control film of the light control module. [Background technology]

[0002] 4, the light control module 10' is configured such that at least a pair of power supply electrodes, a back electrode 1' and a front electrode 2', are provided on the main component, the light control film 13. In addition, a cable 3-1, which is a connection wiring connected to a driving power source, is connected to the back electrode 1', and a cable 3-2, which is a connection wiring connected to a driving power source, is connected to the front electrode 2'.

[0003] As illustrated in Figures 5 and 6, the light-controlling film 13 is a laminate in which a light-controlling layer 11 is sandwiched between a transparent conductive film 6-1 of a first transparent conductive film 9-1 in which a transparent conductive film 6-1 is formed on the surface of a transparent film 5-1, and a transparent conductive film 6-2 of a second transparent conductive film 9-2 in which a transparent conductive film 6-2 is formed on the surface of a transparent film 5-2.

[0004] At the ends of such a light control film 13, a back electrode 1' (FIG. 5) and a front electrode 2' (FIG. 6) are provided.

[0005] As shown in Figure 5, the rear electrode 1' is configured, for example, at the end of the dimming module 10', by adhering copper foil 8 via a conductive adhesive layer 7 onto the transparent conductive film 6-1 of the first transparent conductive film 9-1 exposed at the portion where the second transparent conductive film 9-2 and the dimming layer 11 have been removed.

[0006] Furthermore, as illustrated in Figure 6, the surface electrode 2' is configured, for example, at the end of the dimming module 10', by adhering copper foil 8 via a conductive adhesive layer 7 onto the transparent conductive film 6-2 of the second transparent conductive film 9-2 exposed at the portion where the first transparent conductive film 9-1 and the dimming layer 11 have been removed.

[0007] The light control module 10' is capable of switching between transparency and opacity by applying a driving voltage to the rear electrode 1' and the front electrode 2' to change the degree of light scattering of the light control layer 11.

[0008] In the region where the back electrode 1' and the front electrode 2' of such a dimming module 10' are closest to each other (shown as heat generating region 4 in FIG. 4), the increase in driving voltage accompanying the enlargement of the dimming module 10' causes a problem in which the heat generating region 4 generates heat. The dimming layer 11 is originally an electrically insulating liquid crystal material. However, in reality, liquid crystal materials are contaminated in various ways, and it is believed that Joule heat is generated by the flow of ionic currents due to ionic contamination in particular.

[0009] This heat generation problem is an obstacle to enlarging the size of the light control module 10' because the amount of heat generated increases rapidly (increases in proportion to the square of the voltage) due to the increase in the driving voltage associated with the enlargement of the light control module 10'.

[0010] As a prior art related to the heat generation problem of such a light control module, Patent Document 1 discloses a light control device capable of lowering the lower limit of the temperature at which a light control sheet can be driven. A prior art that addresses this problem has been disclosed. Specifically, the prior art discloses a light control device in which a drive device of the light control device periodically repeats a first operation of applying a first voltage between electrodes that changes the polarization direction of liquid crystal molecules, a second operation of applying a second voltage between the electrodes that inverts the polarity of the first voltage, and a heating operation of applying a voltage between the first terminals that heats the first transparent electrode, each of which is a unit operation of a predetermined period, and the repetition of the unit operations includes alternately repeating the first operation and the second operation. However, this technology is different from the technology that solves the heat generation problem between power supply electrodes that supply power to a light control module. [Prior art documents] [Patent documents]

[0011] [Patent Document 1] JP 2020-194087 A Summary of the Invention [Problem to be solved by the invention]

[0012] In view of the above circumstances, an object of the present invention is to provide a technique capable of avoiding the heat generation problem in the region between adjacent power supply electrodes of a dimming module. [Means for solving the problem]

[0013] As a means for solving the above problems, a first aspect of the present invention is a light control module including at least a pair of power supply electrodes at the ends of a light control film sandwiching a light control layer in which a degree of light scattering changes depending on an applied voltage, the light control film being a pair of transparent conductive films each having a transparent conductive film formed on a transparent film, the transparent conductive film side of the pair of transparent conductive films being on the inner side, the light control film being sandwiched between the pair of transparent conductive films, the light control layer having a degree of light scattering change depending on an applied voltage being on the inner side, The pair of transparent conductive films of the light control film includes a first transparent conductive film and a second transparent conductive film, At least a first power supply electrode is provided on an end of a transparent conductive layer of the first transparent conductive film, At least a second power supply electrode is provided on an end of the transparent conductive layer of the second transparent conductive film, The first power supply electrode and the second power supply electrode are arranged adjacent to each other along one side of the light control film in a plan view of the light control film, This dimming module is characterized in that at least either the first or the second transparent conductive film and the dimming layer are separated by a cutting line that passes between the first and second power supply electrodes, starts at the side of the dimming film on which the power supply electrodes are provided, and is longer than the length of the first and second power supply electrodes in a direction toward the opposite side and shorter than the distance from the side to the midpoint between the side and the opposite side, thereby lengthening the conductive path from the first power supply electrode to the second power supply electrode.

[0014] In addition, a second aspect is a light control module including at least a pair of power supply electrodes at the ends of a light control film sandwiching a light control layer whose degree of light scattering changes depending on an applied voltage, the pair of transparent conductive films each having a transparent conductive film formed on a transparent film with the transparent conductive film side facing inward, The pair of transparent conductive films of the light control film includes a first transparent conductive film and a second transparent conductive film, The edge of the transparent conductive film of the first transparent conductive film is at least A first power electrode is provided, The edge of the transparent conductive film of the second transparent conductive film is at least A second powered electrode is provided; The first power supply electrode and the second power supply electrode are individually arranged on two adjacent sides of the light control film in a plan view of the light control film, This dimming module is characterized in that at least either the first or second transparent conductive film and the dimming layer are separated by a cutting line passing through a vertex sandwiched between two adjacent sides, thereby lengthening the conductive path from the first power supply electrode to the second power supply electrode.

[0015] Also, 3 The embodiment of the present invention is a light control module having at least two pairs of power supply electrodes at the end of a light control film sandwiching a light control layer whose degree of light scattering changes depending on an applied voltage, with the transparent conductive film of a pair of transparent conductive films formed on a transparent film facing the transparent conductive film side on the inner side, The pair of transparent conductive films of the light control film includes a first transparent conductive film and a second transparent conductive film, At least a first power supply electrode and a third power supply electrode are provided on an end portion of a transparent conductive layer of the first transparent conductive film, at least a second power supply electrode and a fourth power supply electrode are provided on an end portion of the transparent conductive layer of the second transparent conductive film; The first power supply electrode to the fourth power supply electrode are adjacent to each other along one side of the light control film in a plan view of the light control film. In order It is placed, This dimming module is characterized in that at least either the first or the second transparent conductive film and the dimming layer are separated by cutting lines that pass between the first power supply electrode and the second power supply electrode, between the second power supply electrode and the third power supply electrode, and between the third power supply electrode and the fourth power supply electrode, respectively, starting from the side of the dimming film on which the power supply electrodes are provided, and that are longer than the lengths of the first power supply electrode, the second power supply electrode, the third power supply electrode, and the fourth power supply electrode in a direction toward the side opposite the side, and shorter than the distance from the side to the midpoint from the side to the side opposite the side, thereby lengthening the conductive paths between the first power supply electrode and the second power supply electrode, the second power supply electrode and the third power supply electrode, and the third power supply electrode and the fourth power supply electrode. Effect of the Invention

[0016] According to the light control module of the present invention, a pair of power supply electrodes (a back electrode and a front electrode) are arranged adjacent to one side of the light control film in a plan view. In a plan view, between the back electrode and the front electrode of the light control film, a cutting line is formed that is longer than the length of the back electrode and the front electrode in the direction toward the side of the light control film where the pair of power supply electrodes are arranged and the side opposite to the side, and is less than half the length of the distance between the side of the light control film where the pair of power supply electrodes are arranged and the side opposite to the side, starting from the side of the light control film where the pair of power supply electrodes are arranged and along the direction toward the side opposite to the side of the light control film. This cutting line divides all of the pair of transparent conductive films and the light control layer that constitute the light control film, or divides either one of the transparent conductive films and the light control layer, so that the length of the conductive path between the pair of power supply electrodes is longer than when the cutting line is not formed. Therefore, the electrical resistance value between the pair of power supply electrodes increases, the flowing current value decreases, and heat generation can be suppressed. This makes it possible to solve the problem of heat generation between the pair of power supply electrodes. [Brief description of the drawings]

[0017] [Figure 1]2 is a top view illustrating an electrode structure of the light control module according to the first embodiment of the present invention. FIG. [Diagram 2] 13 is a top view illustrating an electrode structure of a light control module according to a second embodiment of the present invention. FIG. [Diagram 3] 13 is a top view illustrating an electrode structure of a light control module according to a third embodiment of the present invention. FIG. [Figure 4] FIG. 13 is a top view illustrating an electrode structure of a conventional light control module. [Diagram 5] FIG. 4 is a cross-sectional explanatory diagram illustrating a rear electrode of the electrode structure of the light control module. [Figure 6] FIG. 4 is a cross-sectional explanatory diagram illustrating a surface electrode of the electrode structure of the light control module. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] First Embodiment A first embodiment of the light control module of the present invention will be described with reference to FIGS. 1, 5 and 6. FIG.

[0019] As shown in FIG. 1, the light control module 10-1 of the present invention is a light control module having at least a pair of power supply electrodes (first power supply electrode (rear electrode) 1-1, second power supply electrode (surface electrode) 2-1) at the end of a light control film 13 in which a pair of transparent conductive films each having a transparent conductive film formed on a transparent film are sandwiched with the transparent conductive film side facing inward and a light control layer whose light scattering degree changes depending on the applied voltage is sandwiched. The pair of power supply electrodes (first power supply electrode (rear electrode) 1-1, second power supply electrode (surface electrode) 2-1) are soldered with cables 3-1 and 3-2 connected to a driving power source or a driving circuit, respectively, to make the light control module 10-1 of the present invention operable. The detailed structures of the first power supply electrode (rear electrode) 1-1 and the second power supply electrode (surface electrode) 2-1 are illustrated in FIG. 5 and FIG. 6. That is, the back electrode 1-1 is formed by bonding copper foil 8 to the transparent conductive film 6-1 exposed at the end of the first transparent conductive film 9-1 via a conductive adhesive layer 7, and soldering the cable 3-1 to the copper foil 8 with solder 16. The detailed structures of the front electrode 1-1 and the front electrode 2-1 are illustrated in FIG. 5 and FIG. 6. That is, the back electrode 1-1 is formed by bonding copper foil 8 to the transparent conductive film 6-1 exposed at the end of the first transparent conductive film 9-1 via a conductive adhesive layer 7, and soldering the cable 3-1 to the copper foil 8 with solder 16. The front electrode 2-1 is formed by bonding copper foil 8 to the transparent conductive film 6-2 exposed at the end of the second transparent conductive film 9-2 via a conductive adhesive layer 7, and soldering the cable 3-2 to the copper foil 8 with solder 16. The rear electrode 1-1 is also called a first power supply electrode, and the front electrode 2-1 is also called a second power supply electrode.

[0020] The pair of transparent conductive films of the light control film 13 consists of a first transparent conductive film 9-1 and a second transparent conductive film 9-2 (see FIG. 5). The layer structure of the light control film 13 is the same in the conventional light control module 10' and the light control modules 10-1, 10-2, and 10-3 of the present invention, so the light control modules 10-1, 10-2, and 10-3 will be described below using FIG. 5 or FIG. 6.

[0021] At least a back electrode (first power supply electrode) 1-1 is provided on an end of the transparent conductive layer 6-1 of the first transparent conductive film 9-1, and at least a front electrode (second power supply electrode) 2-1 is provided on an end of the transparent conductive layer 6-2 of the second transparent conductive film 9-2.

[0022] The first power supply electrode 1-1 and the second power supply electrode 2-1 are arranged adjacent to each other along one side of the light control film 13 in a plan view of the light control film 13. The first power supply electrode 1-1 and the second power supply electrode 2-1 can be driven even if they are not arranged along one side of the light control film 13, but this is usually done in order to improve workability at the construction site and for aesthetic reasons.

[0023] Furthermore, a cutting line 12-1 passes between the first power supply electrode 1-1 and the second power supply electrode 2-1, starts from side 14 of the light-control film 13 on which the power supply electrodes 1-1, 2-1 are provided, and is longer than the length of the first power supply electrode 1-1 and the second power supply electrode 2-1 in the direction toward side 15 opposite side 14, and is shorter than the distance from side 14 to the midpoint between side 14 and side 15 opposite side 14. This divides at least either the first transparent conductive film 9-1 or the second transparent conductive film 9-2 and the light-control layer 11, thereby making the conductive path from the first power supply electrode 1-1 to the second power supply electrode 2-1 longer.

[0024] The midpoint from side 14 to side 15 opposite side 14 may be a point located half the distance between side 14 and side 15. Alternatively, it may be a point located between sides 14 and 15, closer to side 15 than first power supply electrode 1-1 and second power supply electrode 2-1 in the direction toward side 15 opposite side 14. In other words, it is a point where the conductive path from first power supply electrode 1-1 to second power supply electrode 2-1 can be made longer than the conductive path when those power supply electrodes are connected at the shortest distance.

[0025] In this way, by lengthening the conductive path from the first power supply electrode 1-1 to the second power supply electrode 2-1, the electrical resistance value between the first power supply electrode 1-1 and the second power supply electrode 2-1 increases, and therefore the amount of heat generated in the region between the first power supply electrode 1-1 and the second power supply electrode 2-1 can be reduced inversely proportional to the electrical resistance value.

[0026] In addition, the cutting line 12-1 may cut the light-control film 13, or may cut either the first transparent conductive film 9-1 or the second transparent conductive film 9-2 and the light-control layer 11.

[0027] In this way, since the cut line 12-1 exposes the light-controlling layer 11 to the outside air, it is preferable to seal the cut line 12-1 with a sealing resin. By using a sealing resin having a refractive index equivalent to that of the transparent films 5-1 and 5-2, the cut line 12-1 can be made invisible.

[0028] (Transparent film) The transparent films 5-1 and 5-2 are not particularly limited and may be any transparent resin film, glass film, or composite material thereof having a visible light transmittance of 80% or more. For example, a polyethylene terephthalate (PET) film may be suitably used.

[0029] (Transparent conductive film) There is no need to limit the transparent conductive films 6-1 and 6-2 in particular as long as they are chemically stable and have a visible light transmittance of 80% or more. For example, an ITO (Indium Tin Oxide) thin film can be suitably used.

[0030] (Light-adjusting layer) The light-controlling layer 11 can be made of any material that can change the degree of light scattering and switch between transparent and opaque by applying a voltage. Known light-controlling layers 11 are those made of normal mode light-controlling materials that become transparent when an appropriate voltage is applied and opaque when the voltage is turned off, and those made of reverse mode light-controlling materials that become opaque when an appropriate voltage is applied and transparent when the voltage is turned off. Either type may be used in the present invention.

[0031] (Conductive adhesive layer) The conductive adhesive layer 7 does not need to be particularly limited as long as it has sufficient adhesive strength with the transparent conductive films 6-1, 6-2 and is capable of adhering the copper foil 8 with sufficiently low electrical resistance, and various commercially available conductive adhesives or double-sided tapes using such adhesives can be used.

[0032] (copper foil) The copper foil 8 is not particularly limited as long as it is a commercially available copper foil. For example, Various electrolytic copper foils and rolled copper foils can be used.

[0033] (cable) The cables 3-1 and 3-2 can be any cable that uses copper or aluminum as a conductor and is covered with an insulating resin layer. When the light control module 10-1 is attached to a movable object such as a door, the cables 3-1 and 3-2 are constantly subjected to force. In such a case, it is preferable to use a cable made of a twisted wire using thin copper wires as a conductor rather than a thick solid-wire cable.

[0034] <Second embodiment> Next, a second embodiment of the light control module of the present invention will be described with reference to FIGS.

[0035] As shown in Figure 2, in the light control module 10-2 of the present invention, the first power supply electrode 1-2 and the second power supply electrode 2-2 are individually arranged on two adjacent sides 14, 17 of the light control film 13 when viewed in a plan view of the light control film 13.

[0036] The characteristic feature is that the conductive path from the first power supply electrode 1-2 to the second power supply electrode 2-2 is lengthened by dividing at least either the first transparent conductive film 9-1 or the second transparent conductive film 9-2 from the light control layer 11 (see Figs. 5 and 6) by a cutting line 12-2 passing through a vertex 18 between two adjacent sides 14 and 17. Except for the above points, this embodiment is similar to the first embodiment.

[0037] By lengthening the conductive path from the first power supply electrode 1-2 to the second power supply electrode 2-2, the electrical resistance value between the first power supply electrode 1-1 and the second power supply electrode 2-1 increases, and therefore the amount of heat generated in the area between the first power supply electrode 1-1 and the second power supply electrode 2-1 can be reduced in inverse proportion to the electrical resistance value.

[0038] <Third embodiment> Next, a third embodiment of the light control module of the present invention will be described with reference to FIGS.

[0039] As shown in Figure 3, the light control module 10-3 of the present invention is a light control module that has at least two pairs of power supply electrodes, a first power supply electrode (rear electrode) 1-3-1, a second power supply electrode (front electrode) 2-3-1, a third power supply electrode (rear electrode) 1-3-2, and a fourth power supply electrode (front electrode) 2-3-2, at the end of a light control film 13 that sandwiches a light control layer 11, whose degree of light scattering changes depending on the applied voltage, with the transparent conductive films 6-1, 6-2 sides of the pair of transparent conductive films 9-1, 9-2 formed on transparent films 5-1, 5-2 facing inward.

[0040] The first power supply electrode 1-3-1 and the third power supply electrode 1-3-2, which are the back electrodes, are soldered by solder 16 to the copper foil 8 adhered via a conductive adhesive layer 7 to the exposed portion of the transparent conductive film 6-1, so that they can be driven. The second power supply electrode 2-3-1 and the fourth power supply electrode 2-3-2, which are the front electrodes, are soldered by solder 16 to the copper foil 8 adhered via a conductive adhesive layer 7 to the exposed portion of the transparent conductive film 6-1, so that they can be driven.

[0041] The pair of transparent conductive films of the light control film 13 includes a first transparent conductive film 9-1 and a second transparent conductive film 9-2. and a second transparent conductive film 9-2 (see Figs. 5 and 6).

[0042] At least a first power supply electrode 1-3-1 and a third power supply electrode 1-3-2 are provided on the end portion of the transparent conductive layer 6-1 of the first transparent conductive film 9-1.

[0043] At least a second power supply electrode 2-3-1 and a fourth power supply electrode 2-3-2 are provided on the end portion of the transparent conductive layer 6-2 of the second transparent conductive film 9-2.

[0044] The first power supply electrode 1-3-1 to the fourth power supply electrode 2-3-2 are disposed adjacent to each other along one side 14 of the light control film 13 when the light control film 13 is seen in a plan view.

[0045] The length of the first power supply electrode 1-3-1 and the second power supply electrode 2-3-1, the second power supply electrode 2-3-1 and the third power supply electrode 1-3-2, and the third power supply electrode 1-3-2 and the fourth power supply electrode 2-3-2 is longer than the length of the first power supply electrode 1-3-1, the second power supply electrode 2-3-1, the third power supply electrode 1-3-2, and the fourth power supply electrode 2-3-2 in the direction from the side 14 of the light control film 13 on which those power supply electrodes are provided to the side 15 facing that side 14, and At least either the first transparent conductive film 9-1 or the second transparent conductive film 9-2 is separated from the dimming layer 11 by cutting lines 12-3-1, 12-3-2, 12-3-3 that are shorter than the distance to the midpoint between side 14 and the opposite side 15, thereby lengthening the conductive paths between the first power supply electrode 1-3-1 and the second power supply electrode 2-3-1, between the second power supply electrode 2-3-1 and the third power supply electrode 1-3-2, and between the third power supply electrode 1-3-2 and the fourth power supply electrode 2-3-2.

[0046] As a result, the electrical resistance values ​​between the first power supply electrode 1-3-1 and the second power supply electrode 2-3-1, between the second power supply electrode 2-3-1 and the third power supply electrode 1-3-2, and between the third power supply electrode 1-3-2 and the fourth power supply electrode 2-3-2 are increased, and the amount of heat generated in the areas between the first power supply electrode 1-3-1 and the second power supply electrode 2-3-1, between the second power supply electrode 2-3-1 and the third power supply electrode 1-3-2, and between the third power supply electrode 1-3-2 and the fourth power supply electrode 2-3-2 can be reduced inversely proportional to the electrical resistance values. [Explanation of symbols]

[0047] 1-1, 1-2, 1-3-1, 1-3-2, 1´··· Rear electrode (power supply electrode) 2-1, 2-2, 2-3-1, 2-3-2, 2´··· Surface electrode (feed electrode) 3-1, 3-2, 3-1-1, 3-1-2, 3-2-1, 3-2-2...cable 4. Heat generation area 5-1, 5-2: Transparent film 6-1, 6-2 Transparent conductive film 7... Conductive adhesive layer 8...Copper foil 9-1...First transparent conductive film 9-2 Second transparent conductive film 10-1, 10-2, 10-3, 10´··· Dimming Module 11. Photochromic layer 12-1, 12-2, 12-3-1, 12-3-2, 12-3-3...Transparent conductive film cutting lines 13. Light control film 14, 17... (light control film) sides Side 15 (opposite side 14) 16 Solder

Claims

1. A light control module including at least a pair of power supply electrodes at the ends of a light control film sandwiching a light control layer whose degree of light scattering changes depending on an applied voltage, the pair of transparent conductive films each having a transparent conductive film formed on a transparent film, the transparent conductive film side of the pair of transparent conductive films being inward, The pair of transparent conductive films of the light control film includes a first transparent conductive film and a second transparent conductive film, At least a first power supply electrode is provided on an end portion of the transparent conductive layer of the first transparent conductive film, At least a second power supply electrode is provided on an end portion of the transparent conductive layer of the second transparent conductive film, The first power supply electrode and the second power supply electrode are arranged adjacent to each other along one side of the light control film in a plan view of the light control film, a cutting line that passes between the first power supply electrode and the second power supply electrode, starts from the side of the light control film on which the power supply electrodes are provided, and is longer than the length of the first power supply electrode and the second power supply electrode in a direction toward the opposite side, and is shorter than the distance from the side to the midpoint between the side and the opposite side, thereby dividing at least either the first or the second transparent conductive film and the light control layer, thereby lengthening the conductive path from the first power supply electrode to the second power supply electrode.

2. A light control module including at least a pair of power supply electrodes at the ends of a light control film sandwiching a light control layer whose degree of light scattering changes depending on an applied voltage, the pair of transparent conductive films each having a transparent conductive film formed on a transparent film, the transparent conductive film side of the pair of transparent conductive films being inward, The pair of transparent conductive films of the light control film includes a first transparent conductive film and a second transparent conductive film, At least a first power supply electrode is provided on an end portion of the transparent conductive layer of the first transparent conductive film, At least a second power supply electrode is provided on an end of the transparent conductive layer of the second transparent conductive film, The first power supply electrode and the second power supply electrode are individually arranged on two adjacent sides of the light control film in a plan view of the light control film, A dimming module characterized in that at least either the first or the second transparent conductive film and the dimming layer are separated by a cutting line passing through a vertex sandwiched between two adjacent sides, thereby lengthening the conductive path from the first power supply electrode to the second power supply electrode.

3. A light control module comprising at least two pairs of power supply electrodes at the ends of a light control film sandwiching a light control layer whose degree of light scattering changes depending on an applied voltage, the light control film being sandwiched between a pair of transparent conductive films each having a transparent conductive film formed on a transparent film, the transparent conductive film side of the pair of transparent conductive films being inward, The pair of transparent conductive films of the light control film includes a first transparent conductive film and a second transparent conductive film, At least a first power supply electrode and a third power supply electrode are provided on an end portion of a transparent conductive layer of the first transparent conductive film, at least a second power supply electrode and a fourth power supply electrode are provided on an end portion of the transparent conductive layer of the second transparent conductive film; The first power supply electrode to the fourth power supply electrode are arranged adjacent to each other in order along one side of the light control film in a plan view of the light control film, a light control module characterized in that at least either the first or the second transparent conductive film and the light control layer are separated by cutting lines that pass between the first power supply electrode and the second power supply electrode, between the second power supply electrode and the third power supply electrode, and between the third power supply electrode and the fourth power supply electrode, respectively, starting from the side of the light control film on which the power supply electrodes are provided, and that are longer than the lengths of the first power supply electrode, the second power supply electrode, the third power supply electrode, and the fourth power supply electrode in a direction toward the side opposite the side, and shorter than the distance from the side to the midpoint from the side to the side opposite the side, thereby lengthening conductive paths between the first power supply electrode and the second power supply electrode, the second power supply electrode and the third power supply electrode, and the third power supply electrode and the fourth power supply electrode.

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