CN209746309U

CN209746309U - Light modulation panel

Info

Publication number: CN209746309U
Application number: CN201920765114.3U
Authority: CN
Inventors: 杨玄菱
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2018-10-30
Filing date: 2019-05-24
Publication date: 2019-12-06
Anticipated expiration: 2029-05-24
Also published as: TWM577997U

Abstract

The utility model provides a dimming panel, it contains first base plate, sets up on first base plate and based on the dimming layer of power supply change transmittance, set up in the second base plate of one side of dimming layer in first base plate, set up at least in at least one electrode layer between dimming layer and first base plate or between dimming layer and the second base plate and set up on the second base plate and have the transparent conducting layer of first end and second end. The transparent conductive layer conducts current from the first terminal to the second terminal based on power supply.

Description

Light modulation panel

Technical Field

The utility model relates to a dimming panel. Particularly, the utility model relates to a panel of adjusting luminance on layer of adjusting luminance that contains heatable transparent conducting layer and adjustable transmittance.

Background

The panel structure is used for a glass window in an automobile, and may be made of a material such as heat insulating paper or dyed glass for shading, preventing glare, or protecting privacy. However, such a panel structure having a shielding or insulating function may simultaneously obstruct the view, so that the view of a person on one side of the panel structure to the other side is limited. For example, the driver's sight line through the glass window to the outside of the vehicle is limited, thereby increasing the risk of driving the vehicle. In addition, it is difficult to clearly grasp the conditions inside the vehicle when the owner is outside the vehicle. Therefore, it is required to develop a panel structure that can change transmittance or transparency according to conditions or needs.

Further, when the panel structure is installed to separate different environments, moisture may be condensed into dew due to a temperature difference between two sides of the panel structure and attached to the panel structure. Alternatively, fog or frost in the environment of one side may undesirably adhere to the panel structure. In view of this, there is a technology of installing a heating wire to remove the fog dew and the like. However, heating the wires unnecessarily reduces the aesthetic appearance of the panel structure and may hinder visibility through the panel structure. In addition, if the layout pitch is too large, the heating metal lines may also cause the panel structure to crack due to the difference of thermal expansion.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problems of the prior art, it is an object of the present invention to provide a dimming panel to overcome the above-mentioned drawbacks.

Means for solving the problems

In order to solve the above problem, the utility model provides a light modulation panel, it contains:

A first substrate;

A light modulation layer disposed on the first substrate and changing transmittance based on power supply;

the second substrate is arranged on one side of the dimming layer opposite to the first substrate;

at least one electrode layer at least arranged between the dimming layer and the first substrate or between the dimming layer and the second substrate; and

a transparent conductive layer disposed on the second substrate and having a first end and a second end,

The transparent conductive layer conducts current from the first end to the second end based on power supply.

The dimming panel described above further includes:

An AC power supply electrically coupled to the light modulation layer and driving the light modulation layer to change transmittance; and

And the direct current power supply is electrically coupled with the transparent conducting layer and drives and conducts the transparent conducting layer.

In the dimming panel, the transparent conductive layer is a layer formed on the second substrate by evaporation, coating or deposition.

The dimming panel further includes a third substrate disposed on a side of the transparent conductive layer opposite to the second substrate.

The light-adjusting panel is characterized in that the light transmittance of the transparent conductive layer is not less than 60%.

The above-mentioned light modulation panel further comprises at least one base layer disposed on at least one of the two outermost surfaces of the light modulation panel, and the structural strength of the at least one base layer is higher than that of the first substrate or the second substrate.

In the above dimming panel, the dimming layer is an electrochromic layer.

in the above-mentioned light modulation panel, the light modulation layer is a liquid crystal layer.

In the above dimming panel, the liquid crystal layer is driven by a passive matrix arrangement.

the dimming panel further comprises a first polarizing layer and a second polarizing layer, and the dimming layer is disposed between the first polarizing layer and the second polarizing layer,

The first polarizing layer is arranged close to the transparent conducting layer relative to the second polarizing layer.

In the above dimming panel, the first polarizing layer is disposed on a side of the transparent conductive layer opposite to the second substrate, or disposed between the transparent conductive layer and the second substrate.

In the above dimming panel, the first polarizing layer, the second polarizing layer or a combination thereof is an under-coated polarizing film.

In the dimming panel, the transparent conductive layer is a complete sheet-shaped transparent conductive layer without separation.

The dimming panel further comprises a first bonding pad and a second bonding pad, wherein the complete sheet-shaped transparent conductive layer has a first side edge located at the first end and a second side edge located at the second end, and the first bonding pad and the second bonding pad extend along the first side edge and the second side edge respectively.

In the dimming panel, the transparent conductive layer is a plurality of block-shaped transparent conductive layers, and a distance between adjacent block-shaped transparent conductive layers is less than 50 μm.

the dimming panel further comprises a first bonding pad and a second bonding pad, wherein the block-shaped transparent conductive layers respectively have a first side edge located at the first end and a second side edge located at the second end, and the first bonding pad and the second bonding pad respectively extend along the first side edge and the second side edge.

The dimming panel further comprises a plurality of first bonding pads and a plurality of second bonding pads, wherein the block-shaped transparent conductive layers respectively have a first side edge located at the first end and a second side edge located at the second end, and each of the first bonding pads and each of the second bonding pads respectively extend along at least one of the first side edges and at least one of the second side edges.

Comparing the efficacy of the prior art

According to the utility model provides a dimming panel can adjust and change the transmittance based on situation or demand to reach anticipated visuality and/or cloaking nature. Further, according to the utility model provides a fog frost dew that probably hinders the sight can also be got rid of to the panel of adjusting luminance, and reduces the influence to the wholeness and the aesthetic property of panel of adjusting luminance.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Drawings

fig. 1 is a schematic view of a dimming panel according to an embodiment of the present invention;

Fig. 2A to 2F are schematic views illustrating configurations of a first polarizing layer and a second polarizing layer in a dimming panel according to various embodiments of the present invention;

Fig. 3 is a schematic diagram illustrating a dimming layer and a transparent conductive layer of a dimming panel according to another embodiment of the present invention being driven by different power sources;

Fig. 4A to 4C are schematic diagrams illustrating a combination configuration of a transparent conductive layer and a bonding pad according to various embodiments of the present invention;

Fig. 5 is a schematic view of a rear windshield window of an automobile with a dimming panel according to an embodiment of the present invention.

Wherein the reference numerals

30: base layer

41: a first polarizing layer

42: second polarizing layer

100: first substrate

200: second substrate

300: third substrate

400: light modulation unit

410: a first electrode

420: second electrode

450: light modulation layer

510. 520, 530: light ray

600: transparent conductive layer

601: first end

602: second end

605: complete sheet-like transparent conductive layer

610. 620, 630, 640, 650, 660: block-shaped transparent conductive layer

700. 701-706, 701 '-706': bonding pad

710: first bonding pad

720: second bonding pad

800: power supply

810: AC power supply

820: direct current power supply

910. 920: electric wire

1000. 1010, 1020, 1030, 1040, 1050, 1060, 1100: light modulation panel

2000: automobile

2100: rear windscreen window

2200: rear-view mirror

3000: light sensor

d: distance between each other

Detailed Description

Various embodiments will be described hereinafter, and the spirit and principles of the invention should be readily understood by those skilled in the art with reference to the following description taken in conjunction with the accompanying drawings. However, while certain specific embodiments are specifically illustrated herein, these embodiments are merely exemplary and are not to be considered in all respects as limiting or exhaustive. Therefore, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and principles of the invention.

In the drawings, the thickness of layers, films, panels, regions, etc. have been exaggerated for clarity. Like reference numerals refer to like elements throughout the specification. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected" to another element, there are no intervening elements present. As used herein, "connected" may refer to physical and/or electrical connections. Furthermore, an "electrical connection" or "coupling" may be the presence of other elements between the two elements.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a "first element," "first component," "first region," "first layer" or "first portion" discussed below could be termed a second element, component, region, layer or portion without departing from the teachings herein.

the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms, including "at least one", unless the content clearly indicates otherwise. "or" means "and/or". As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence or addition of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components, and/or groups thereof.

Exemplary embodiments are described herein with reference to cross-sectional views that are schematic illustrations of idealized embodiments. Thus, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, the embodiments described herein should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, a region shown or described as flat may generally have rough and/or nonlinear features. Further, the acute angles shown may be rounded. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region and are not intended to limit the scope of the claims.

Referring to fig. 1, according to an embodiment of the present invention, a dimming panel 1000 may include a first substrate 100, a dimming cell 400 disposed on the first substrate 100, a second substrate 200 disposed on the dimming cell 400, and a transparent conductive layer 600 disposed on the second substrate 200 and having a first end 601 and a second end 602. Specifically, the light modulation unit 400 may include at least one light modulation layer 450 disposed on the first substrate 100, and the second substrate 200 may be disposed opposite to the light modulation layer 450 on a side of the first substrate 100. The light modulation layer 450 may change transmittance based on power supply, and may be an electrochromic layer or a liquid crystal layer, for example. However, the above are examples and the present invention is not limited thereto.

In order to supply power to the light modulation layer 450, at least one electrode layer may be disposed at least between the light modulation layer 450 and the first substrate 100 or between the light modulation layer 450 and the second substrate 200. For example, according to an embodiment of the present invention, as shown in fig. 1, the light modulation layer 450 may be a liquid crystal layer, the first electrode 410 serving as a driving electrode may be disposed between the light modulation layer 450 and the first substrate 100, and the second electrode 420 serving as a common electrode may be disposed between the light modulation layer 450 and the second substrate 200. Accordingly, the transmittance of the light modulation layer 450 can be adjusted or changed by changing the electric field of the light modulation layer 450 by supplying power to the first electrode 410 and the second electrode 420 to change the arrangement of the liquid crystal molecules therein. However, the above is merely an example, and the present invention is not limited thereto. For example, when the dimming cell 400 is a liquid crystal display cell using IPS or FFS technology, only one of the first electrode 410 or the second electrode 420 may be disposed.

According to another embodiment of the present invention, when the light modulation layer 450 is a liquid crystal layer, the light modulation layer 450 can be driven by an active matrix arrangement or a passive matrix arrangement. Wherein, if the light modulation layer 450 is driven by the passive matrix arrangement, the aperture ratio of the light modulation layer 450 can be further improved because no metal lines such as data lines and/or gate lines are provided. Accordingly, the transmittance of the dimming layer 450 can be further improved, and thus the transmittance of the entire dimming panel 1000 can be improved. However, the dimming layer 450 can also be driven by the active matrix arrangement and still achieve the desired transmittance of the dimming panel 1000 with a sufficiently high resolution.

According to some embodiments of the present invention, the transmittance of the transparent conductive layer 600 disposed on the second substrate 200 may be not less than 60%. For example, the transparent conductive layer 600 can be made of any material that can conduct electricity and transmit more than 60% of light. For example, the material of the transparent conductive layer 600 may include Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), a metal thin film, poly (3, 4-ethylenedioxythiophene) (PEDOT), or carbon nanotubes, and the present invention is not limited to the specifically illustrated example.

According to an embodiment of the present invention, the transparent conductive layer 600 can conduct current from the first end 601 to the second end 602 based on power supply. For example, referring to fig. 1, bonding pads (bonding pads) 700 may be further disposed at two ends of the transparent conductive layer 600, so that current can be conducted to the transparent conductive layer 600 through the bonding pads 700. Accordingly, the transparent conductive layer 600 may increase a temperature due to a load of current, thereby serving as a heating sheet to evaporate fog dew that may be attached to the dimming panel 1000. As mentioned above, the transparent conductive layer 600 is difficult to be recognized by the naked eye due to the high transmittance of the transparent conductive layer 600, so that the integrity and the aesthetic property of the dimming panel 1000 can be maintained under the condition of removing the fog, frost and dew.

according to an embodiment of the present invention, the independent panel structure including the transparent conductive layer 600 can be assembled on the independent panel structure including the dimming layer 450 by setting up, thereby achieving the objective of setting the transparent conductive layer 600. Alternatively, according to another embodiment of the present invention, the transparent conductive layer 600 can be disposed by directly evaporating, coating, or depositing the material for forming the transparent conductive layer 600 on the second substrate 200. In this case, the transparent conductive layer 600 may be a layered layer formed on the second substrate 200 in an evaporation, coating, or deposition form. In addition, no matter what type of arrangement of the transparent conductive layer 600 is, a third substrate (e.g., a protection substrate) may be further disposed on a side of the transparent conductive layer 600 opposite to the second substrate 200 to protect the transparent conductive layer 600.

Accordingly, the light modulation panel 1000 as described above can adjust the transmittance of the light modulation layer 450 by power supply, and can conduct and heat the transparent conductive layer 600 by power supply, and the power supply of the two can be performed separately or simultaneously. Accordingly, the transmittance (or gray level) of the dimming panel 1000 may be adjusted based on the situation or need, and the fog dew attached to the dimming panel 1000 may be removed.

According to some embodiments of the present invention, at least one substrate layer may be disposed on at least one of two outermost surfaces of the light modulation panel 1000, so as to further increase the overall thickness of the light modulation panel 1000 or improve the structural strength of the light modulation panel 1000. In some embodiments, the base layer and each substrate may be made of glass, acrylic, plastic, or the like. According to a preferred embodiment, the base layer may have a structural strength (e.g., tensile strength, compressive strength, bending strength, etc.) higher than that of the first substrate 100 or the second substrate 200. In addition, the substrate layer may be tempered glass, but the present invention is not limited thereto.

In addition, according to some embodiments of the present invention, in the case that the dimming layer 450 is an electrochromic layer, other components such as an electrolyte layer, an ion storage layer, and the like may be further disposed in the dimming panel 1000. Still alternatively, according to some embodiments of the present invention, in the case that the light adjusting layer 450 is a liquid crystal layer, one or more polarizing layers may be further disposed in the light adjusting panel 1000.

Specifically, when the light modulation layer 450 is a liquid crystal layer, schematic diagrams of the light modulation panels 1010 to 1060 of the embodiments in which the first substrate 100, the second substrate 200, the third substrate 300, the base layer 30, the first polarization layer 41, and the second polarization layer 42 may be disposed opposite to the light modulation layer 450 and the transparent conductive layer 600 are shown in fig. 2A to 2F. For simplicity, the bonding pads 700 that may be disposed in the dimming panels 1010 to 1060 to supply power to the electrodes of the dimming layer 450 and to the transparent conductive layer 600 are omitted. In addition, here, the polarizing layer 41 relatively close to the transparent conductive layer 600 may be defined as a first polarizing layer 41, and the polarizing layer 42 relatively far from the transparent conductive layer 600 may be defined as a second polarizing layer 42.

As shown in fig. 2A to 2F, in the case that the dimming layer 450 is a liquid crystal layer, the dimming layer 450 is disposed between the first and second polarizing layers 41 and 42. Therefore, the light modulation layer 450 can better adjust the transmittance and the light transmission characteristics of the entire light modulation panels 1010 to 1060 by matching the first and second polarizing layers 41 and 42.

According to an embodiment of the present invention, in addition to the polarizing layer that can be assembled by attaching, the first polarizing layer 41, the second polarizing layer 42 or the combination thereof marked with an asterisk in fig. 2A to 2F can also be an inner coating type polarizing film.

According to some embodiments of the present invention, as shown in fig. 2A to 2C, the first polarizing layer 41 may be disposed on a side of the transparent conductive layer 600 facing away from the second substrate 200, or disposed between the transparent conductive layer 600 and the second substrate 200.

Next, referring to fig. 3 showing a dimming panel 1100 according to an embodiment of the present invention, the dimming panel 1100 may include a second polarizing layer 42, a first substrate 100, a first electrode 410, a dimming layer 450, a second electrode 420, a second substrate 200, a transparent conductive layer 600, a third substrate 300 (e.g., a protective substrate), a first polarizing layer 41; and bonding pads 700 connected to two ends (e.g., the first end 601 and the second end 602) of the transparent conductive layer 600. In this embodiment, the light modulation layer 450 may be a liquid crystal layer. In this case, the dimming panel 1100 may further include an ac power source 810 electrically coupled to the dimming layer 450 and driving the dimming layer 450 to change the transmittance. In addition, on the other hand, the dimming panel 1100 may further include a dc power source 820 electrically coupled to the transparent conductive layer 600 and driving a conducting current to the transparent conductive layer 600, so as to raise the temperature of the transparent conductive layer 600.

next, the arrangement of the bonding pad 700 for electrically connecting the transparent conductive layer 600 and the power source 800 according to various embodiments of the present invention will be described with reference to fig. 4A to 4C. Fig. 4A to 4C show plan views taken along the section line a-a of fig. 1. However, the combination configuration of the transparent conductive layer 600 and the bonding pad 700 shown in fig. 4A to 4C is not limited to the embodiment of the dimming panel 1000 shown in fig. 1, and may be applied to the dimming panel of other embodiments of the present invention.

First, as shown in fig. 4A, according to a variation of the present invention, the transparent conductive layer 600 may be a complete sheet-shaped transparent conductive layer 605 without separation. In this case (without separation of the transparent conductive layer 600), the bonding pad 700 may include a first bonding pad 710 and a second bonding pad 720. Accordingly, the first bonding pads 710 and the second bonding pads 720 may extend along two side ends of the complete sheet-shaped transparent conductive layer 605, respectively. Specifically, the complete sheet-like transparent conductive layer 605 may have a first side opposite to the first end 601 and a second side opposite to the second end 602, and the first bonding pad 710 and the second bonding pad 720 may extend along the first side and the second side, respectively. Here, the lengths of the first bonding pads 710 and the second bonding pads 720 may be equal to or greater than the side length of the side end of the complete sheet-shaped transparent conductive layer 605. Under this configuration, the first bonding pad 710 and the second bonding pad 720 can be connected to the power source 800 by the wires 910 and 920, respectively, for example, so as to achieve conductive heating of the entire sheet-shaped transparent conductive layer 605. In summary, according to the present embodiment, the process and the configuration for manufacturing the dimming panel can be relatively simple.

In addition, as shown in fig. 4B, according to another variation of the present invention, the transparent conductive layer 600 may be a plurality of block-shaped transparent conductive layers that are divided. For example, six block-shaped transparent conductive layers 610, 620, 630, 640, 650 and 660 as shown in fig. 4B. However, the number of the block-shaped transparent conductive layers of the present invention is not limited thereto, and this is merely an example. In this case (the transparent conductive layer 600 is divided), the bonding pad 700 may include a first bonding pad 710 and a second bonding pad 720. Accordingly, the first bonding pad 710 and the second bonding pad 720 may be respectively connected to one side end of the respective local block-shaped transparent conductive layers 610 to 660. Specifically, the block-shaped transparent conductive layers 610 to 660 respectively have a first side opposite to the first end 601 and a second side opposite to the second end 602, and the first bonding pads 710 and the second bonding pads 720 extend along the first side and the second side, respectively. That is, one of the bonding pads 710 connects one side ends of the block-shaped transparent conductive layers 610 to 660, and the other bonding pad 720 connects the other side ends of the block-shaped transparent conductive layers 610 to 660. Under this configuration, the first bonding pads 710 and the second bonding pads 720 can be connected to the power source 800 by wires 910 and 920, respectively, for example, so as to achieve conductive heating of the block-shaped transparent conductive layers 610 to 660. In view of the above, according to the present embodiment, the damage or deterioration of the local block-shaped transparent conductive layer can be prevented from affecting the operation of the entire transparent conductive layer 600.

Further, as shown in fig. 4C, according to another variation of the present invention, the transparent conductive layer 600 may be a plurality of block-shaped transparent conductive layers similar to the embodiment of fig. 4B, and similar or same details will not be repeated. However, in this case (the transparent conductive layer 600 is divided), the bonding pad 700 may include a plurality of first bonding pads 701 to 706 and a plurality of second bonding pads 701 'to 706'. Accordingly, the bonding pads 701 to 706 and 701 'to 706' may be respectively connected to one side end or the other side end opposite to the side end of at least one of the block-shaped transparent conductive layers 610 to 660. Specifically, the block-shaped transparent conductive layers 610 to 660 respectively have first sides opposite to the first end 601 and second sides opposite to the second end 602, and each of the first bonding pads 701 to 706 and each of the second bonding pads 701 'to 706' respectively extend along at least one of the first sides and at least one of the second sides. Under this configuration, the bonding pads connected to the two side ends of one of the block-shaped transparent conductive layers can be connected to a power supply, for example, by different wires, so as to realize conductive heating of the block-shaped transparent conductive layer. For example, the bonding pads 701 and 701' connected to both side ends of the block-shaped transparent conductive layer 610 may be connected to a power source by different wires, respectively. In addition, the power sources connected to different block-shaped transparent conductive layers can be the same or different. In view of the above, according to the present embodiment, it is able to prevent the damage or deterioration of the local block-shaped transparent conductive layer from affecting the operation of the entire transparent conductive layer 600, and each of the block-shaped transparent conductive layers 610 to 660 can be conducted by independent control of an external signal, for example, so as to achieve local heating, zone heating or detail temperature adjustment of the dimming panel.

According to an embodiment of the present invention, referring to fig. 4B and 4C, in order to make the entire dimming panel have better heating uniformity and/or improve the appearance integrity and the aesthetic property of the dimming panel after the transparent conductive layer 600 is conductive, the distance d between the adjacent block-shaped transparent conductive layers 610 to 660 may be preferably smaller than 50 μm. However, the present invention is not limited thereto, and the distance d may vary according to the material characteristics and cost of the transparent conductive layer 600 and the desired heating characteristics or appearance characteristics of the dimming panel.

Next, an application and operation of the dimming panel according to various embodiments of the present invention will be described with reference to fig. 5.

Referring to fig. 5, according to an embodiment of the present invention, the dimming panel of any of the above embodiments may be applied to a rear windshield 2100 as an automobile 2000. Therefore, the light transmittance of the rear windshield window 2100 can be adjusted using the dimming panel (including the dimming layer 450) of the above embodiment, so that the light incident from the rear windshield window 2100 can be adjusted. For example, ambient light 510 entering from rear windshield 2100 may be emitted into the vehicle as light 520 of modulated intensity or characteristic after passing through rear windshield 2100 and may enter the vehicle occupant's eyes as viewed directly toward the rear by the vehicle occupant or may further enter the vehicle occupant's eyes as light 530 reflected by rear-view mirror 2200.

For example, according to this embodiment, when the automobile 2000 is driven at night or under poor visibility, the transmittance of the rear windshield 2100 (which may include the dimming panel of any of the embodiments) may be increased in order to clearly display an image behind the automobile 2000. For example, the electric field can be manipulated such that the liquid crystal molecular arrangement of the dimming layer 450, which is a liquid crystal layer, changes, increasing the transmittance. Accordingly, the vehicle occupant can see a relatively clear and high-brightness rear image by reflecting or directly viewing the rear view through the rear view mirror 2200.

On the other hand, in order to prevent glare or influence on the occupant during daytime or under strong light (for example, a rear vehicle light), the transmittance of the rear windshield window 2100 (which may include the light control panel according to any of the embodiments) may be reduced. For example, the electric field can be manipulated such that the liquid crystal molecular arrangement of the dimming layer 450, which is a liquid crystal layer, changes, reducing the transmittance. Accordingly, the vehicle occupant can be prevented from being directly irradiated with glare or exposed to the sun by being reflected by the rear mirror 2200 or being directly viewed rearward.

In order to adjust the transmittance of the dimming panel with respect to factors such as ambient light, according to some embodiments of the present invention, the transmittance may be adjusted based on manual operation of a user (e.g., a remote controller). In addition, according to other embodiments of the present invention, the light adjusting panel can further communicate with a light sensor 3000 to adjust the transmittance of the light adjusting layer 450 based on the light intensity detected by the light sensor 3000. The light sensor 3000 may be disposed on the light modulation panel (embedded in the light modulation panel or located at the outermost side thereof), or disposed independently of the light modulation panel.

With the light sensor 3000, a predetermined transmittance can be set according to an embodiment. Thus, if the light sensor 3000 senses strong light or high ambient light at the rear, it can communicate with the dimming panel to reduce the transmittance of the dimming panel. On the contrary, if the light sensor 3000 senses low brightness or low rear visibility, it can communicate with the dimming panel to improve the light transmittance of the dimming panel.

According to the utility model discloses a still some embodiments, can also adjust the transmittance of adjusting luminance panel according to individual privacy demand, to expectations such as the demand of shining. For example, the minimum light transmittance may be switched to when the vehicle is not driving to avoid peeping by an irrelevant person. However, when the relevant person needs to check the interior of the vehicle without entering the vehicle, the relevant person can also operate correspondingly to switch the transmittance of the dimming panel to a higher state for a short period of time.

In addition, according to the present embodiment, since the rear windshield 2100 (which may include the light control panel of any embodiment) is provided with the transparent conductive layer 600, when fog dew occurs, the fog dew may be evaporated by heating the transparent conductive layer 600. Therefore, visibility and driving safety of the automobile 2000 can be improved.

According to some variant embodiments, when the dimming panel is applied to a cold area or country, since dew is more easily formed on the dimming panel at a warm indoor side (e.g., inside the automobile 2000), the dimming panel may be installed such that the transparent conductive layer 600 faces indoors with respect to the dimming layer 450. Therefore, the process of heating the fog dew on the dimming panel at the indoor side of the evaporation chamber can be accelerated. However, this is merely an example, and the present invention is not limited to this aspect of setting the dimming panel according to the environmental change, the characteristic and the requirement.

The aforesaid will be according to the utility model discloses a rear windshield window's of car aspect of the panel of adjusting luminance of each embodiment is only the example, and according to the utility model discloses a panel of adjusting luminance of each embodiment can be applied to various install in order to separate on the window of both sides space or environment, can be applied to as any demand adjustment transmittance or must get rid of the panel structure of fog frost dew on, and can adjust and change corresponding to above-mentioned principle. In addition, according to some embodiments of the present invention, when the dimming layer 450 is a liquid crystal layer, the liquid crystal molecules may increase the reaction speed based on the relatively high temperature of the transparent conductive layer 600 conducting heating. Therefore, the defect that the reaction time of the liquid crystal molecules can be prolonged when the environment is relatively low temperature can be further avoided.

In summary, according to the dimming panel of the embodiments of the present invention, the transmittance can be adjusted according to the situation and the desire, and the attached fog, frost, dew, and the like can be removed. Further, the above-mentioned different functions of adjusting transmittance and removing fog, frost and dew can be independently operated and performed simultaneously or not simultaneously. Therefore, the applicability and flexibility of the dimming panel can be further improved.

naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.

Claims

1. A dimming panel, comprising:

A first substrate;

2. The dimming panel of claim 1, further comprising:

3. The dimming panel of claim 1, wherein the transparent conductive layer is a layer formed on the second substrate by evaporation, coating, or deposition.

4. The dimming panel of claim 1, further comprising a third substrate disposed on a side of the transparent conductive layer opposite the second substrate.

5. the dimming panel of claim 1, wherein the transparent conductive layer has a light transmittance of not less than 60%.

6. The dimming panel of claim 1, further comprising at least one base layer disposed on at least one of two outermost surfaces of the dimming panel, wherein the at least one base layer has a higher structural strength than the first substrate or the second substrate.

7. the dimming panel of claim 1, wherein the dimming layer is an electrochromic layer.

8. The dimming panel of claim 1, wherein the dimming layer is a liquid crystal layer.

9. The dimming panel of claim 8, wherein the liquid crystal layer is driven by a passive matrix arrangement.

10. The dimming panel of claim 8, further comprising a first polarizing layer and a second polarizing layer, wherein the dimming layer is disposed between the first polarizing layer and the second polarizing layer,

11. The dimming panel of claim 10, wherein the first polarizing layer is disposed on a side of the transparent conductive layer opposite to the second substrate or between the transparent conductive layer and the second substrate.

12. The dimming panel of claim 10 or 11, wherein the first polarizing layer, the second polarizing layer, or a combination thereof is an under-coated polarizing film.

13. the dimming panel of claim 1, wherein the transparent conductive layer is a full sheet-like transparent conductive layer without a partition.

14. The dimming panel of claim 13, further comprising a first bonding pad and a second bonding pad, wherein the integral sheet-like transparent conductive layer has a first side opposite to the first end and a second side opposite to the second end, and the first bonding pad and the second bonding pad extend along the first side and the second side, respectively.

15. The dimming panel of claim 1, wherein the transparent conductive layer is a plurality of segmented transparent conductive layers, and the distance between adjacent segmented transparent conductive layers is less than 50 μm.

16. The dimming panel of claim 15, further comprising a first bonding pad and a second bonding pad, wherein the block-shaped transparent conductive layers respectively have a first side at the first end and a second side at the second end, and the first bonding pad and the second bonding pad respectively extend along the first side and the second side.

17. The dimming panel of claim 15, further comprising a plurality of first bonding pads and a plurality of second bonding pads, wherein the block-shaped transparent conductive layers respectively have a first side opposite to the first end and a second side opposite to the second end, and each of the first bonding pads and each of the second bonding pads respectively extend along at least one of the first sides and at least one of the second sides.