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CN-121986294-A - Light control film, laminated glass, and window glass for vehicle

CN121986294ACN 121986294 ACN121986294 ACN 121986294ACN-121986294-A

Abstract

The present invention requires that proper lighting is possible. In a light control film (15), a first transparent electrode layer has a first section (20), a second section (23), and a sub-section (26) that are electrically non-connected to each other, the first section (20) has a first extension portion extending in a first direction orthogonal to the lamination direction of the first transparent electrode layer and the second transparent electrode layer, and a first projection portion projecting from the first extension portion in a second direction orthogonal to the lamination direction and the first direction, the second section (23) has a second extension portion extending in the first direction at a position closer to the second direction than the first extension portion, and a second projection portion projecting from the second extension portion in a third direction opposite to the second direction and at a position different from the first projection portion, and the sub-section (26) has a plurality of sub-projection portions arranged in the first direction, at least one of the first projection portion and the second projection portion being present between the sub-projection portions.

Inventors

  • IWA Daichi
  • MATSUZAKI TAKANORI

Assignees

  • ＡＧＣ株式会社

Dates

Publication Date
20260505
Application Date
20241002
Priority Date
20231005

Claims (16)

  1. 1. A light adjusting film having a first transparent electrode layer and a second transparent electrode layer to which a voltage can be applied, and a light adjusting layer provided between the first transparent electrode layer and the second transparent electrode layer, The dimming film has a first section, a second section and a sub-section electrically non-connected to each other, The first section includes a first extension portion extending in a first direction orthogonal to a lamination direction of the first transparent electrode layer and the second transparent electrode layer, and a first protruding portion protruding from the first extension portion in a second direction orthogonal to the lamination direction and the first direction, The second section is provided with a second extension portion located at a position closer to the second direction than the first extension portion and extending in the first direction, and a second protruding portion protruding from the second extension portion in a third direction opposite to the second direction and located at a position different from the first protruding portion in the first direction, The sub-section includes a plurality of sub-protrusions arranged in the first direction, and at least one of the first protrusion and the second protrusion is provided between the sub-protrusions.
  2. 2. The dimming film as claimed in claim 1, wherein the sub section is provided with a sub extension portion extending in the first direction and connecting the sub protrusions to each other.
  3. 3. The dimming film of claim 1 or 2, wherein the first section has a plurality of first protrusions and the second section has a plurality of second protrusions.
  4. 4. A light adjusting film according to claim 3, wherein one of the plurality of first protrusions and the plurality of second protrusions is provided between the sub-protrusions arranged in the first direction.
  5. 5. The light adjusting film according to claim 2, wherein the sub section is provided with a first sub extension portion connecting one ends of the plurality of sub protrusions arranged in the first direction to each other, and a second sub extension portion connecting the other ends of the plurality of sub protrusions arranged in the first direction to each other as the sub extension portion.
  6. 6. The dimming film as claimed in claim 1 or 2, wherein at least one of the first protrusion and the second protrusion is rectangular, trapezoidal or triangular in plan view.
  7. 7. The dimming film according to claim 1 or 2, wherein the number of the sub protrusions is 1 or more and 50 or less.
  8. 8. The light modulation film according to claim 7, wherein the number of the sub protrusions is 2 or more and 30 or less.
  9. 9. The dimming film of claim 1 or 2, wherein the width of the sub protrusion is narrower than the widths of the first protrusion and the second protrusion.
  10. 10. The dimming film according to claim 1 or 2, wherein the second transparent electrode layer is a common electrode having no non-electrically connected region throughout.
  11. 11. The dimming film as claimed in claim 1 or 2, wherein the first transparent electrode layer has an insulating portion, and the first section, the second section, and the sub section are divided by the insulating portion.
  12. 12. A laminated glass is provided with: first and second glass plates, and The light modulation film according to claim 1 or 2 provided between the first glass plate and the second glass plate.
  13. 13. The laminated glass according to claim 12, wherein, The laminated glass has a shielding layer which overlaps the peripheral edge portions of the first glass plate and the second glass plate and the peripheral edge portion of the light control film in a plan view, The first extension portion and the second extension portion are located at positions overlapping the shielding layer in a plan view.
  14. 14. The laminated glass according to claim 13, wherein, The first extension portion and the second extension portion do not overlap with a region surrounded by the shielding layer in a plan view, that is, an opening region, At least a portion of each of the first projection, the second projection, and the sub projection overlaps the opening area.
  15. 15. The laminated glass according to claim 14, wherein in the opening region, when a sum of areas overlapping the first protruding portion is denoted as S1, a sum of areas overlapping the second protruding portion is denoted as S2, and a sum of areas overlapping the plurality of sub-protruding portions is denoted as S3, the S1, S2, and S3 satisfy s1=s2=s3.
  16. 16. A vehicle window glass comprising the laminated glass according to claim 12.

Description

Light control film, laminated glass, and window glass for vehicle Technical Field The present invention relates to a light control film, a laminated glass, and a window glass for a vehicle. Background A light-adjusting film is known in which glass used in a vehicle, a building, or the like can be switched between transparent and opaque by turning on/off a switch. For example, patent document 1 discloses a technique of dividing a transparent electrode into stripes, and individually driving the divided transparent electrodes to adjust the size of a light control region. Prior art literature Patent literature Patent document 1 Japanese patent laid-open No. 2020-126153 Disclosure of Invention Technical problem to be solved by the invention In the technique of patent document 1, although the light control film is divided into strips, the area of the individual light control region to be divided is large, and the light control degree may not be controlled appropriately. Therefore, the dimming film is required to be able to appropriately control the dimming degree. The present invention has been made in view of the above-described problems, and an object thereof is to provide a light control film, a laminated glass, and a vehicle window glass, each of which can appropriately control a light control degree. Technical proposal adopted for solving the technical problems The light modulation film of the present disclosure is a light modulation film having a first transparent electrode layer and a second transparent electrode layer to which a voltage can be applied, and a light modulation layer provided between the first transparent electrode layer and the second transparent electrode layer, wherein the light modulation film has a first section, a second section, and a sub-section that are electrically connected to each other, the first section is provided with a first extension portion extending in a first direction orthogonal to a lamination direction of the first transparent electrode layer and the second transparent electrode layer, and a first protruding portion protruding from the first extension portion in a second direction orthogonal to the lamination direction and the first direction, the second section is provided with a second extension portion extending in the first direction and a second protruding portion protruding from the second extension portion in a third direction opposite to the second direction and located in a position different from the first protruding portion, and the plurality of sub-sections are provided with at least the first protruding portions and the second protruding portions arranged between each other. The laminated glass of the present disclosure includes a first glass plate, a second glass plate, and the light control film provided between the first glass plate and the second glass plate. The vehicle window glass of the present disclosure is provided with the laminated glass. Effects of the invention By the invention, lighting can be properly realized. Drawings Fig. 1 is a schematic view of a laminated glass according to one embodiment. Fig. 2 is a schematic cross-sectional view of the laminated glass of the present embodiment. Fig. 3 is a schematic cross-sectional view of the light control film of the present embodiment. Fig. 4 is a schematic view showing a part of the upper surface of the first transparent electrode layer of the present embodiment. Fig. 5 is a schematic diagram showing a modification of the laminated glass of the present embodiment. Fig. 6 is a schematic view showing another example of laminated glass. Fig. 7 is a schematic view showing a lighting example. Fig. 8A and 8B are schematic views showing lighting examples. Fig. 9 is a schematic view showing a lighting example. Detailed Description Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiment, and, when there are a plurality of embodiments, embodiments in which the embodiments are combined are also included in the scope of the present invention. Furthermore, the numerical values include rounded ranges. (Laminated glass) Fig. 1 is a schematic view of a laminated glass according to one embodiment. The laminated glass 10 shown in fig. 1 is a laminated glass for a vehicle. The laminated glass 10 can be applied to, for example, vehicle glazings such as vehicle glazings, rear side glazings, rear triangular glazings, add-on glazings, and front glazings. The additional window glass is a glass that is attached to the rear side of the vehicle in order to improve the rear visibility of the driver of the vehicle. In the example of the present embodiment, the laminated glass 10 can be used as a sunroof glass provided at the roof of a vehicle. A vehicle herein typically refers to an automobile, but is considered to refer to a moving object having glass including an electric car, a ship, an ai