阅读说明：本技术 包括具有可电控光学性能和活性物质浓度梯度的功能元件的复合玻璃板 (Composite glass pane comprising functional elements with electrically controllable optical properties and active substance concentration gradient ) 是由 M.克莱因 J.多罗萨里奥 于 2019-09-19 设计创作，主要内容包括：包括具有可电控光学性能的功能元件(5)的复合玻璃板(100),其至少包括-包括内侧(III)和外侧(IV)的内玻璃板(1)和包括内侧(II)和外侧(I)的外玻璃板(2),-热塑性中间层(3),其将内玻璃板(1)的内侧(III)与外玻璃板(2)的内侧(II)接合,-嵌入热塑性中间层(3)中的具有可电控光学性能的功能元件(5),其至少包括多层薄膜(6),所述多层薄膜以下列次序包括以面形式彼此重叠布置的-第一载体薄膜(13.1)、-第一平面电极(12.1)、-活性层(7)、-第二平面电极(12.2)、-第二载体薄膜(13.2),其中活性层(7)包含基质(7.1)和活性物质(7.2),并且活性物质(7.2)的浓度在功能元件(5)的区域上变化。(Composite glass pane (100) comprising a functional element (5) with electrically controllable optical properties, comprising at least-an inner glass pane (1) comprising an inner side (III) and an outer side (IV) and an outer glass pane (2) comprising an inner side (II) and an outer side (I), -a thermoplastic interlayer (3) joining the inner side (III) of the inner glass pane (1) with the inner side (II) of the outer glass pane (2), -the functional element (5) with electrically controllable optical properties embedded in the thermoplastic interlayer (3) comprising at least a multilayer film (6) comprising in this order-a first carrier film (13.1), -a first planar electrode (12.1), -an active layer (7), -a second planar electrode (12.2), -a second carrier film (13.2) arranged one above the other in face-like fashion, wherein the active layer (7) comprises a matrix (7.1) and an active substance (7.2), and the concentration of the active substance (7.2) varies over the area of the functional element (5).)

1. Composite glass pane (100) comprising a functional element (5) with electrically controllable optical properties, comprising at least

An inner glass pane (1) comprising an inner side (III) and an outer side (IV) and an outer glass pane (2) comprising an inner side (II) and an outer side (I),

-a thermoplastic interlayer (3) joining the inner side (III) of the inner glass pane (1) with the inner side (II) of the outer glass pane (2),

-a functional element (5) with electrically controllable optical properties embedded in a thermoplastic intermediate layer (3), comprising at least a multilayer film (6) comprising, in the following order, layers arranged one above the other in the form of a surface

-a first carrier film (13.1)

-a first planar electrode (12.1)

-an active layer (7)

-a second planar electrode (12.2)

-a second carrier film (13.2),

wherein the active layer (7) comprises a matrix (7.1) and an active substance (7.2), and the concentration of the active substance (7.2) varies over the area of the functional element (5).

2. Composite glass pane (100) comprising a functional element (5) according to claim 1, wherein the active layer (7) comprises a plurality of concentration regions (11) which differ by the concentration of the active substance (7.2).

3. Composite glass pane (100) comprising a functional element (5) according to claim 2, wherein the active layer (7) has at least one initial concentration c of the active substance (7.2)₀And has a second concentration region (11.2) in which the concentration of the active substance (7.2) is equal to zero.

4. Composite glass pane (100) comprising a functional element (5) according to claim 3, wherein a third concentration region (11.3) is arranged between the first concentration region (11.1) and the second concentration region (11.2), in which third concentration region the concentration of the active substance (7.2) is between the concentration of the first concentration region (11.1) and the concentration of the second concentration region (11.2).

5. A composite glass pane (100) comprising a functional element (5) according to any one of claims 1 to 4, wherein the functional element (5) is a PDLC element, the active layer (7) is a PDLC layer, the matrix (7.1) is a polymer matrix and the active substance (7.2) is a liquid crystal, said liquid crystal being dispersed in the polymer matrix in the form of liquid crystal droplets.

6. Composite glass pane (100) comprising a functional element (5) according to claim 5, wherein the concentration of the active substance (7.2) is varied by the number of liquid crystal droplets.

7. Composite glass pane (100) comprising a functional element (5) according to any of claims 1 to 6, wherein a concentration gradient of the active substance (7.2) is present from one pane edge of the composite glass pane (100) to the opposite pane edge of the composite glass pane (100).

8. The composite glass pane (100) comprising the functional element (5) according to any of claims 1 to 7, wherein the composite glass pane (100) is a windscreen pane of a motor vehicle, comprising an engine edge (M), a top edge (D) and two side edges (S), and having an initial concentration c of the active substance (7.2)₀Is arranged adjacent to the top edge (D), and a second concentration area (11.2) in which the concentration of active substance (7.2) is equal to zero is arranged adjacent to the engine edge (M).

9. Composite glass pane (100) comprising a functional element (5) according to any one of claims 1 to 8, wherein at least one separation line (16) is introduced in at least one planar electrode (12), and the at least one separation line (15) divides the planar electrode (12) into at least two sections (14) whose electrically controllable optical properties can be switched independently of one another.

10. Composite glass pane comprising a functional element (5) according to any one of claims 1 to 9, wherein the thermoplastic interlayer (3) comprises at least one first thermoplastic composite film (4.1) and at least one second thermoplastic composite film (12.2) and optionally a thermoplastic framework film (9), wherein the first thermoplastic composite film (12.1) joins the functional element (16) to the inner side (III) of the inner glass pane (13) and the second thermoplastic composite film (12.2) joins the functional element (16) to the inner side (II) of the outer glass pane (14), and the optionally present thermoplastic framework film (9) is arranged between the first thermoplastic composite film (12.1) and the second thermoplastic composite film (12.2) and surrounds the surrounding edge (8) of the functional element (5).

11. Composite glass pane (1) comprising functional elements (5) according to claim 10, wherein at least the area of the first thermoplastic composite film (4.1) and/or the second thermoplastic composite film (4.2) which overlaps the first concentration area (11.1) of functional elements (5) is coloured or pigmented.

12. Method for manufacturing a composite glass pane (100) comprising a functional element (5) according to any one of claims 1 to 11, wherein at least

a) Providing a functional element (5) having electrically controllable optical properties, the active layer (7) of which comprises a matrix (7.1) and an active substance (7.2), wherein the concentration of the active substance (7.2) varies over the area of the functional element (5),

b) laying at least one first thermoplastic composite film (4.1), the provided functional element (5) and a second thermoplastic composite film (4.2) in this order on the inner glass pane (1) or the outer glass pane (2), and closing the stack of layers with the inner glass pane (1) or the outer glass pane (2),

c) the inner glass pane (1) and the outer glass pane (2) are joined by lamination, wherein the thermoplastic intermediate layer (3) with the embedded functional element (5) is formed by a first thermoplastic composite film (4.1) and a second thermoplastic composite film (4.2).

13. The method according to claim 12, wherein step a) is preceded by

a1) Providing a first carrier film (13.1) with a first planar electrode (12.1),

a2) applying a solution containing a matrix substance for forming the matrix (7.1) and an active substance (7.2) to the first planar electrode (12.1) at least in one area, wherein the ratio of the active substance (7.2) to the matrix substance is selected such that an initial concentration c of the active substance (7.2) is produced in at least one area of the first planar electrode (12.1)₀Of the first concentration area (11.1),

a3) applying a solution containing a matrix substance for forming the matrix (7.1) and an active substance (7.2) to the first planar electrode (12.1) at least in a further part,wherein the ratio of active substance (7.2) to matrix substance is selected such that a concentration c with active substance is generated in at least one local area of the first planar electrode (12.1)<c₀Of the second concentration area (11.2),

a4) covering the arrangement with a second carrier film (13.2) having a second planar electrode (12.2), wherein the second planar electrode (12.2) is oriented in the direction of the active substance (7.2),

a5) the stack of layers is joined to form a multilayer film (6) as a functional element (5), and an active layer (7) is formed from a matrix (7.1) and an active substance (7.2).

14. Use of a composite glass pane (100) according to any one of claims 1 to 13 as a windscreen panel for a vehicle, wherein the electrically controllable functional element (5) is used as a sun visor.