Electronic device and shading device

Abstract

An electronic device comprises a first dimming device and a second dimming device. The first dimming device comprises a first dimming module with a first liquid crystal layer and a second dimming module with a second liquid crystal layer. The second dimming device comprises a third dimming module with a third liquid crystal layer and a fourth dimming module with a fourth liquid crystal layer. The first liquid crystal layer has a first alignment angle, the third liquid crystal layer has a third alignment angle, and the first alignment angle is different from the third alignment angle.

Description

Technical Field

[0001] The invention relates to an electronic device and a shading device, and in particular to an electronic device and a shading device including a dimming device. Background Art

[0002] There are various types of architectural devices in society. Architectural devices may include various buildings that can accommodate humans, animals, plants and / or goods, advertising billboards, installation art, shelters, and / or any combination thereof. The architectural device may be provided with a shading device for shielding outdoor light sources. In order to increase the utility of the shading device, the shading device may be provided with an identification device that can provide an identifiable name and logo.

[0003] Currently, the recognition devices used are mostly display devices or printed billboards. However, display devices need to be powered on to display these patterns or texts, and printed billboards cannot be recognized in the absence of outdoor light sources. In addition, during the day, the names and logos displayed on the display devices may be difficult to recognize due to strong outdoor light sources. Summary of the invention

[0004] In order to respond to energy-saving policies and reduce the possibility that names and logos on shading devices are difficult to identify due to strong outdoor light sources or lack of outdoor light sources, the present disclosure provides an electronic device with a dimming device and a shading device including the same.

[0005] According to some embodiments of the present disclosure, an electronic device is provided, comprising a first dimming device and a second dimming device which are adjacently arranged. The first dimming device comprises a first dimming module having a first liquid crystal layer and a second dimming module having a second liquid crystal layer and arranged opposite to the first dimming module. The second dimming device comprises a third dimming module having a third liquid crystal layer and a fourth dimming module having a fourth liquid crystal layer and arranged opposite to the third dimming module. That is, in one embodiment, the first dimming module and the second dimming module are stacked along a normal direction (defined as the first direction D1). The second dimming device is arranged adjacent to the first dimming device along a second direction perpendicular to the first direction (the normal direction of each dimming module). The liquid crystal molecules of the first liquid crystal layer have a first alignment angle, the liquid crystal molecules of the third liquid crystal layer have a third alignment angle, and the first alignment angle is different from the third alignment angle.

[0006] According to some embodiments of the present disclosure, a shading device capable of modulating light emitted by a light source is provided, comprising a first dimming device and a second dimming device arranged adjacent to the first dimming device. The light source emits a first light and a second light. The first light forms a third light through the first dimming device, and the second light forms a fourth light through the second dimming device, and the light intensity of the third light at a receiving angle or position outside the shading device is different from the light intensity of the fourth light at the receiving angle or position. In some embodiments, the light intensity is observed with the naked eye, for example, a brighter light indicates a stronger light intensity, and a darker light indicates a weaker light intensity when observed with the naked eye, but the present disclosure is not limited thereto. In some embodiments, the light intensity can be measured using instruments such as a gloss meter and a visual angle analyzer. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to make the above-mentioned objectives, features and advantages of the present disclosure more obvious and easy to understand, the specific implementation methods of the present disclosure are described in detail below with reference to the accompanying drawings, wherein:

[0008] Figure 1 is a schematic diagram of the effect of a shading device for an electronic device according to an embodiment of the present disclosure;

[0009] FIG2( a ) is a cross-sectional schematic diagram of a first dimming device according to an embodiment of the present disclosure;

[0010] FIG2( b ) is a cross-sectional schematic diagram of a second dimming device according to an embodiment of the present disclosure;

[0011] Figure 3 is a schematic top view illustrating the alignment angles of liquid crystal molecules in the first liquid crystal layer to the fourth liquid crystal layer according to an embodiment of the present disclosure;

[0012] Figure 4 is through having Figure 3 A comparison diagram of reflected light intensities of light modulated by the first dimming device and the second dimming device at different viewing angles;

[0013] Figure 5 is a schematic top view illustrating the alignment angles of liquid crystal molecules in the first dimming module to the fourth dimming module according to another embodiment of the present disclosure;

[0014] Figure 6 (a) and Figure 6 (b) is through Figure 5 Light patterns of light modulated by the first dimming device and the second dimming device shown;

[0015] Figure 7 Is to explain the Figure 5 A comparison diagram of the intensity of transmitted light between the first dimming device and the second dimming device shown; and

[0016] Figure 8 is a cross-sectional schematic diagram of a first dimming device according to another embodiment of the present disclosure.

[0017]

Explanation of symbols

[0018] 1: Shading device

[0019] 2: Light source

[0020] 10: Electronic devices

[0021] 3: Observer

[0022] 11: First dimming device

[0023] 110: first dimming module

[0024] 111: first liquid crystal layer

[0025] 112,122,132,142: Dyes

[0026] 113: Upper substrate

[0027] 114:Lower base plate

[0028] 115: upper conductive layer

[0029] 116: lower conductive layer

[0030] 117: Upper alignment layer

[0031] 118: Lower alignment layer

[0032] 119:Adhesives

[0033] 120: Second dimming module

[0034] 121: Second liquid crystal layer

[0035] 13: Second dimming device

[0036] 130: The third dimming module

[0037] 131: third liquid crystal layer

[0038] 140: Fourth dimming module

[0039] 141: Fourth liquid crystal layer

[0040] 150: Adhesive layer

[0041] 20: Isolation structure

[0042] 21: Isolation medium

[0043] 23: Isolation substrate

[0044] 25: Isolation connector

[0045] 30: Protective structure

[0046] 31: First protective substrate

[0047] 33: Second protective substrate

[0048] LC1,LC2,LC3,LC4: Liquid crystal molecules

[0049] L1,L1',L2,L2',L3,L3',L4,L4': light

[0050] D1,D2,D3: Direction DETAILED DESCRIPTION

[0051] The following is a detailed description of the electronic device of the embodiment of the present disclosure. It should be understood that the following description provides many different embodiments or examples for implementing different modes of some embodiments of the present disclosure. The specific components and arrangements described below are only for simple and clear description of some embodiments of the present disclosure. Of course, these are only used for example and not for limitation of the present disclosure. In addition, repeated numbers or marks may be used in different embodiments. These repetitions are only for simple and clear description of some embodiments of the present disclosure, and do not represent any correlation between the different embodiments and / or structures discussed.

[0052] Here, the terms "about", "approximately", and "generally" generally mean within 10%, within 5%, within 3%, within 2%, within 1%, or within 0.5% of a given value or range. The quantities given here are approximate quantities, that is, in the absence of specific description of "about", "approximately", and "generally", the meaning of "about", "approximately", and "generally" can still be implied. Here, the term "a to b" means greater than or equal to a and less than or equal to b.

[0053] It is understood that although the terms "first", "second", "third", etc. may be used herein to describe various components, constituents, regions, layers, and / or parts, these components, constituents, regions, layers, and / or parts should not be limited by these terms, and these terms are only used to distinguish different components, constituents, regions, layers, and / or parts. Therefore, a first component, component, region, layer, and / or part discussed below may be referred to as a second component, component, region, layer, and / or part without departing from the teachings of some embodiments of the present disclosure.

[0054] In some embodiments of the present disclosure, relative terms such as "lower", "upper", "horizontal", "vertical", "below", "above", "top", "bottom", etc. should be understood as the orientation shown in the paragraph and related drawings. This relative terminology is only used for convenience of explanation and does not mean that the device described therein must be manufactured or operated in a specific orientation. It is understandable that if the device in the attached drawing is turned upside down, the components described on the "lower" side will become components on the "upper" side. The embodiments of the present disclosure can be used in conjunction with the attached drawings. Figure 1 It is also understood that the drawings of the present disclosure are also considered as part of the specification. It should be understood that the drawings of the present disclosure are not drawn to scale, and in fact, the size of the components may be arbitrarily enlarged or reduced to clearly show the features of the present disclosure.

[0055] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as commonly understood by the skilled person to whom this disclosure belongs. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the background or context of the relevant technology and the present disclosure, and should not be interpreted in an idealized or overly formal manner unless specifically defined in the embodiments of the present disclosure.

[0056] Certain words are used in the specification and claims of this disclosure to refer to specific components. It should be understood by those skilled in the art that electronic equipment manufacturers may refer to the same components by different names. This document does not intend to distinguish between components that have the same function but different names. In the following specification and claims, the words "including" and "comprising" are open-ended words and should therefore be interpreted as "including but not limited to..."

[0057] The "pretilt angle" of the present disclosure refers to the angle between the optical axis of the liquid crystal molecule and the projection plane on which it is located, which can be observed from the cross-sectional schematic diagram of the present disclosure. The "alignment angle" of the present disclosure refers to the angle between the projection of the liquid crystal molecule on the surface (plane) on which it is located and the x-axis of the plane (for example, the second direction D2 perpendicular to the normal direction of each dimming module), which can be observed from the top view schematic diagram of the present disclosure.

[0058] The electronic device disclosed herein may include a packaging device, a semiconductor device display device, a backlight device, an antenna device, a sensing device, a splicing device, or a building material, but is not limited thereto. The electronic device may be a bendable or flexible electronic device. The display device may be a non-self-luminous display device or a self-luminous display device. The antenna device may be a liquid crystal antenna device or a non-liquid crystal antenna device, and the sensing device may be a sensing device for sensing capacitance, light, heat or ultrasound, but is not limited thereto. The splicing device may be, for example, a display splicing device or an antenna splicing device, but is not limited thereto. Building materials may be used for shading devices. The shading device may be a transparent display, a window, an outdoor billboard, a projection screen, a building exterior wall, or a decorative panel. The window may be a smart window. It should be noted that the electronic device may be any combination of the above, but is not limited thereto.

[0059] The electronic device disclosed in the present invention may be applied to a light shielding device. Figure 1 FIG. 1 is a schematic diagram showing the effect of a shading device 1 including an electronic device 10 according to an embodiment of the present disclosure. Figure 1 As shown, the electronic device 10 includes a first dimming device 11 and a second dimming device 13 that are adjacently arranged. The light source 2 emits a first light beam L1 and a second light beam L2. The first light beam L1 and the second light beam L2 pass through the first dimming device 11 and the second dimming device 13 to form a third light beam L3 and a fourth light beam L4. The observer 3 receives the third light beam L3 and the fourth light beam L4 from the first dimming device 11 and the second dimming device 13. In some embodiments, the light source 2 and the observer 3 are located on the same side relative to the shading device 1, such as Figure 1 As shown, the first light L1 can be reflected by the first dimming device 11 to form a third light L3, and the second light L2 can be reflected by the second dimming device 13 to form a fourth light L4, but the present disclosure is not limited thereto. In some embodiments, the shading device 1 is located between the light source 2 and the observer 3, the light source 2 emits the first light L1 and the second light L2, the first light L1 can penetrate the first dimming device 11 to form the third light L3, and the second light L2 can penetrate the second dimming device 13 to form the fourth light L4. The normal direction of the first dimming device 11 and the second dimming device 13 is defined as the first direction D1. In some embodiments, the second dimming device 13 can be disposed adjacent to the first dimming device 11 along the second direction D2 and / or a third direction D3 perpendicular to the second direction D2, but the present disclosure is not limited thereto. In some embodiments, the first direction D1 is perpendicular to the second direction D2.

[0060] In some embodiments, the light source 2 may include sunlight, any outdoor light, or any indoor light. In some embodiments, the first dimming device 11 and the second dimming device 13 may be disposed on, for example, a transparent display, an outdoor billboard, a building exterior wall, a decorative panel, a smart window, a projection screen, etc., but not limited thereto.

[0061] In some embodiments, the electronic device 10 may include multiple first dimming devices 11 and / or multiple second dimming devices 13 according to design requirements. The number of first dimming devices 11 and the number of second dimming devices 13 in the electronic device 10 may be the same or different. In some embodiments, the first dimming devices 11 and the second dimming devices 13 may be arranged according to design requirements to present a desired pattern and / or text. For example, the electronic device 10 may include 6 first dimming devices 11 and 3 second dimming devices 13 according to design requirements. In some embodiments, these first dimming devices 11 and second dimming devices 13 may be arranged in a 3X3 matrix presenting the word "K", such as Figure 1 shown.

[0062] FIG. 2( a ) is an enlarged cross-sectional schematic diagram of a first dimming device 11 according to an embodiment of the present disclosure, and FIG. 2( b ) is an enlarged cross-sectional schematic diagram of a second dimming device 13 according to an embodiment of the present disclosure.

[0063] As shown in Fig. 2(a) and Fig. 2(b), the first dimming device 11 may include a first dimming module 110 and a second dimming module 120, and the second dimming device 13 may include a third dimming module 130 and a fourth dimming module 140. The first dimming module 110 includes a first liquid crystal layer 111, the second dimming module 120 includes a second liquid crystal layer 121, the third dimming module 130 includes a third liquid crystal layer 131, and the fourth dimming module 140 includes a fourth liquid crystal layer 141. The alignment angle of the liquid crystal molecules of the first liquid crystal layer 111 is different from the alignment angle of the liquid crystal molecules of the third liquid crystal layer 131. Therefore, without power supply, the first light L1 and the second light L2 (such as sunlight or any outdoor light) reflected by the first dimming device 11 and the second dimming device 13 or the first light L1 and the second light L2 (such as indoor light) penetrating the first dimming device 11 and passing through the second dimming device 13 can form the third light L3 and the fourth light L4 with different intensities due to the different orientation angles of the liquid crystal molecules of the first liquid crystal layer 111 and the liquid crystal molecules of the third liquid crystal layer 131. The observer 3 can receive the third light L3 and the fourth light L4 with different intensities from the first dimming device 11 and the second dimming device 13 at a receiving position or receiving angle outside the shading device 1 (such as the first direction D1 substantially perpendicular to the second direction D2 and the third direction D3). That is, without power supply, when the observer 3 observes the shading device 1 at the receiving position, the first dimming device 11 and the second dimming device 13 of the electronic device 10 can appear relatively black and relatively white.

[0064] The structures of the first dimming device 11 and the second dimming device 13 of the present disclosure are further described below with reference to FIG. 2( a ) and FIG. 2( b ).

[0065] As shown in FIG2(a), the first dimming device 11 may include a first dimming module 110 and a second dimming module 120. The first dimming module 110 includes an upper substrate 113, a lower substrate 114, an upper conductive layer 115, a lower conductive layer 116, an upper alignment layer 117, a lower alignment layer 118, an adhesive 119, a first dye 112, and a first liquid crystal layer 111.

[0066] The first liquid crystal layer 111 is located between the upper substrate 113 and the lower substrate 114. The material included in the lower substrate 114 may be the same as or different from the material included in the upper substrate 113. In some embodiments, the upper substrate 113 and / or the lower substrate 114 may include a transparent or opaque organic material or an inorganic material, and may also include a hard material or a flexible material. Examples of organic materials may include polyimide (PI), polycarbonate (PC), polyethylene terephthalate (PET), liquid crystal polymer (LCP), other known suitable materials, or any combination of the above, but the present disclosure is not limited thereto. Examples of inorganic materials may include dielectric materials, metal materials, other known suitable materials, or any combination of the above, but the present disclosure is not limited thereto. Examples of hard materials may include glass, quartz, sapphire, ceramics or plastics, other known suitable materials, or any combination of the above, but the present disclosure is not limited thereto. The "flexible material" here refers to a material that can be bent, folded, rolled, flexed, stretched and / or other similar deformations to represent at least one of the possible deformation modes mentioned above. Examples of flexible materials may include one of the above-mentioned organic materials, but the flexible materials referred to in the present disclosure are not limited to the above-mentioned materials, and "flexibility" is not limited to the above-mentioned deformation modes.

[0067] In some embodiments, an upper conductive layer 115 may be disposed on the upper substrate 113 and a lower conductive layer 116 may be disposed on the lower substrate 114. The upper conductive layer 115 and the lower conductive layer 116 are disposed between the upper substrate 113 and the lower substrate 114. The material included in the lower conductive layer 116 may be the same as or different from the material included in the upper conductive layer 115. In some embodiments, the upper conductive layer 115 and / or the lower conductive layer 116 may include a metal material (e.g., gold (Au), copper (Cu), tungsten (W), or nickel (Ni)), a metal oxide conductive material (e.g., indium tin oxide (ITO)), other suitable materials, or any combination thereof. In some embodiments, a voltage may be applied to the first liquid crystal layer 111 through the upper conductive layer 115 and the lower conductive layer 116 when necessary.

[0068] In some embodiments, an upper alignment layer 117 may be further disposed on the upper substrate 113, and a lower alignment layer 118 may be further disposed on the lower substrate 114. In some embodiments, the upper alignment layer 117 and the lower alignment layer 118 may be disposed between the upper conductive layer 115 and the lower conductive layer 116, but the present disclosure is not limited thereto. In other embodiments, the upper conductive layer 115 and the lower conductive layer 116 may be omitted, and the upper alignment layer 117 and the lower alignment layer 118 may be disposed between the upper substrate 113 and the lower substrate 114. The material included in the upper alignment layer 117 may be the same as or different from the material included in the lower alignment layer 118. In some embodiments, the upper alignment layer 117 and / or the lower alignment layer 118 may include polyimide, polyamic acid (PAA), other suitable materials, or any combination thereof.

[0069] In some embodiments, the adhesive 119 may be disposed between the upper conductive layer 115 and the lower conductive layer 116 and indirectly connect the upper substrate 113 and the lower substrate 114. The adhesive 119, the upper conductive layer 115 and the lower conductive layer 116 form a cavity. The first liquid crystal layer 111 is located in the above-mentioned cavity. In other embodiments, the upper conductive layer 115 and the lower conductive layer 116 may be omitted, and the adhesive 119 may be disposed between the upper substrate 113 and the lower substrate 114 and directly connect the upper substrate 113 and the lower substrate 114. The adhesive 119, the upper substrate 113 and the lower substrate 114 form a cavity, and the first liquid crystal layer 111 is located in the above-mentioned cavity. The adhesive 119 may be, for example, a frame glue, which may, for example, include acrylic resin, epoxy resin, polyurethane, or any combination thereof. In some embodiments, the acrylic resin may include a free radical induced acrylic resin. In some embodiments, the adhesive 119 may include oligomers, monomers, photoinitiators, epoxy resin compounds, thermal curing agents, other free radical type initiators, other additives, other suitable materials, and / or any combination thereof.

[0070] In some embodiments, the first liquid crystal layer 111 may be disposed between the upper alignment layer 117 and the lower alignment layer 118, the upper alignment layer 117 may be disposed between the upper conductive layer 115 and the first liquid crystal layer 111, and the lower alignment layer 118 may be disposed between the lower conductive layer 116 and the first liquid crystal layer 111. In other embodiments, the upper conductive layer 115 and the lower conductive layer 116 may be omitted, the first liquid crystal layer 111 may be disposed between the upper alignment layer 117 and the lower alignment layer 118, the upper alignment layer 117 may be disposed between the upper substrate 113 and the first liquid crystal layer 111, and the lower alignment layer 118 may be disposed between the lower substrate 114 and the first liquid crystal layer 111.

[0071] The first liquid crystal layer 111 may include a first liquid crystal molecule LC1 and a first dye 112. The first dye 112 may include a dark resin, an azo compound, an anthraquinone compound, other suitable materials, or any combination thereof. The first liquid crystal molecule LC1 has a first pretilt angle and a first alignment angle. In some embodiments, the first pretilt angle is about +2 to about +10 degrees. In some embodiments, the first alignment angle is about -20 degrees to about +20 degrees or about +160 degrees to about +200 degrees. In other embodiments, the first alignment angle is about +25 degrees to about +65 degrees. Light passing through the first liquid crystal layer 111 may have different light intensities at different viewing angles, thereby producing a viewing angle asymmetric characteristic.

[0072] The second dimming module 120 is disposed opposite to the first dimming module 110 (adjacent in the first direction D1), and is connected to the first dimming module 110 through an adhesive layer 150. The adhesive layer 150 may be, for example, polyvinyl butyral resin (PVB), ethylene vinyl acetate (EVA), or optically clear adhesive (OCA).

[0073] Except that the second dimming module 120 includes a second liquid crystal layer 121 instead of the first liquid crystal layer 111 , the structure of the second dimming module 120 is substantially the same as that of the first dimming module 110 , so only the second liquid crystal layer 121 is further described herein.

[0074] The second liquid crystal layer 121 may include a second liquid crystal molecule LC2 and a second dye 122. The second dye 122 may include a dark resin, an azo compound, an anthraquinone compound, other suitable materials, or any combination thereof. In some embodiments, the second dye 122 may be the same as or different from the first dye 112. The second liquid crystal molecule LC2 has a second pretilt angle and a second alignment angle. The first alignment angle is substantially perpendicular to the second alignment angle. "Substantially perpendicular" here means that the angle between the two alignment angles is between 80 degrees and 100 degrees. In some embodiments, the angle between the first alignment angle and the second alignment angle is about 80 degrees to about 100 degrees. In some embodiments, the second pretilt angle is about +2 to about +10 degrees. In some embodiments, the second alignment angle is about +70 degrees to about +110 degrees or about +250 degrees to about +290 degrees. In other embodiments, the second alignment angle is about +115 degrees to about +155 degrees. When the second pre-tilt angle is about +2 to about +10 degrees, the light passing through the second liquid crystal layer 121 may have different light intensities at different viewing angles, thereby generating a viewing angle asymmetry characteristic.

[0075] As shown in FIG. 2( b ), the second dimming device 13 may include a third dimming module 130, a fourth dimming module 140, and an adhesive layer 150. The third dimming module 130 and the fourth dimming module 140 are arranged opposite to each other (i.e., adjacent to each other in the first direction D1). The adhesive layer 150 is located between the third dimming module 130 and the fourth dimming module 140 to bond the third dimming module 130 and the fourth dimming module 140. The structure of the second dimming device 13 is substantially the same as that of the first dimming device 11, except that the third dimming module 130 includes a third liquid crystal layer 131 instead of the first liquid crystal layer 111, and the fourth dimming module 140 includes a fourth liquid crystal layer 141 instead of the second liquid crystal layer 121. Therefore, only the third liquid crystal layer 131 and the fourth liquid crystal layer 141 are further described herein.

[0076] The third liquid crystal layer 131 may include a third liquid crystal molecule LC3 and a third dye 132. The third dye 132 may include a dark resin, an azo compound, an anthraquinone compound, other suitable materials, or any combination thereof. In some embodiments, the third dye 132 may be the same as or different from the first dye 112 and / or the second dye 122. The third liquid crystal molecule LC3 has a third pretilt angle and a third alignment angle. In some embodiments, the third pretilt angle is about +2 to about +10 degrees. The first alignment angle is different from the third alignment angle. In some embodiments, the third alignment angle is about +20 degrees to about +160 degrees or about +200 degrees to about +340 degrees. In some embodiments, the third alignment angle is about +205 degrees to about +245 degrees. When the third pretilt angle is about +2 to about +10 degrees, the light passing through the third liquid crystal layer 131 may have different light intensities at different viewing angles, thereby generating a viewing angle asymmetric characteristic.

[0077] The fourth liquid crystal layer 141 may include a fourth liquid crystal molecule LC4 and a fourth dye 142. The fourth dye 142 may include a dark resin, an azo compound, an anthraquinone compound, other suitable materials, or any combination thereof. In some embodiments, the fourth dye 142 may be the same as or different from the first dye 112, the second dye 122, and / or the third dye 132. The fourth liquid crystal molecule LC4 has a fourth pretilt angle and a fourth alignment angle. The third alignment angle is substantially perpendicular to the fourth alignment angle. "Substantially perpendicular" includes an angle between the two alignment angles of 80 degrees and 100 degrees. In some embodiments, the angle between the third alignment angle and the fourth alignment angle is about 80 degrees to about 100 degrees. In some embodiments, the fourth pretilt angle is about +2 to about +10 degrees. In some embodiments, the fourth alignment angle is about +110 degrees to about +250 degrees or about -70 degrees to about +70 degrees. In some embodiments, the fourth alignment angle is about +295 degrees to about +335 degrees. When the fourth pre-tilt angle is about +2 to about +10 degrees, the light passing through the fourth liquid crystal layer 141 may have different light intensities at different viewing angles, thereby generating a viewing angle asymmetry characteristic.

[0078] In an embodiment where the first orientation angle is from about -20 degrees to about +20 degrees or from about +160 degrees to about +200 degrees and the third orientation angle is from about +20 degrees to about +160 degrees or from about +200 degrees to about +340 degrees. When the first light L1 is irradiated from the first dimming module 110 of the first dimming device 11 to the direction of the second dimming module 120, the first light L1 is reflected to form the third light L3. When the second light L2 is irradiated from the third dimming module 130 of the second dimming device 13 to the direction of the fourth dimming module 140, the second light L2 is reflected to form the fourth light L4. At the same viewing angle and / or the same receiving position, the first light L1 and the second light L2 have the same light intensity, while the third light L3 and the fourth light L4 have different light intensities. In some embodiments, the first light L1 and the second light L2 may be light rays with the same characteristics emitted by the same light source. In some embodiments, the light source may be the sun or any outdoor light. In an embodiment where the light source is the sun, the first light L1 and the second light L2 may be sunlight. In some embodiments, the third light L3 may have different light intensities at different viewing angles. In some embodiments, the fourth light L4 may have different light intensities at different viewing angles.

[0079] Figure 3 It is a top view schematic diagram illustrating the alignment angles of the first to fourth liquid crystal molecules LC1 to LC4 in the first dimming module 110 and the second dimming module 120 in the first dimming device 11 and the third dimming module 130 and the fourth dimming module 140 in the second dimming device 13 according to an embodiment of the present disclosure. Figure 4 Is to explain the Figure 3 The light intensity comparison diagram of the third light L3 and the fourth light L4 reflected by the first dimming module 110 to the fourth dimming module 140 of the electronic device 10 at different viewing angles is shown. Figure 3 as well as Figure 4 The effects of the electronic device 10 of the present disclosure are further described.

[0080] Figure 3 The solid lines in FIG. 1 represent specific alignment angles of the first liquid crystal molecule LC1 to the fourth liquid crystal molecule LC4, the dotted lines represent possible ranges of the alignment angles, and the arrows represent the pre-tilt angle directions. Figure 3 As shown, the pretilt angles of the first liquid crystal molecule LC1 to the fourth liquid crystal molecule LC4 are all about +2 degrees to about +10 degrees. Taking the projection of the pretilt angle direction on the top-view plane as 0 degrees in the orientation angle direction, the specific orientation angle of the first liquid crystal molecule LC1 in the first dimming module 110 may be about 0 degrees or about +180 degrees, but the present disclosure is not limited thereto. In the present disclosure, the possible range of the first liquid crystal molecule LC1 in the first dimming module 110 is about 0±20 degrees (about -20 degrees to about +20 degrees) or about +180±20 degrees (about +160 degrees to +200 degrees), as Figure 3 In summary, Figure 3 As shown, the specific alignment angle of the second liquid crystal molecule LC2 in the second dimming module 120 may be approximately +90 degrees or approximately +270 degrees; the specific alignment angle of the third liquid crystal molecule LC3 in the third dimming module 130 may be approximately +90 degrees or approximately +270 degrees; and the specific alignment angle of the fourth liquid crystal molecule LC4 in the fourth dimming module 140 may be approximately 0 degrees or approximately +180 degrees. In the present disclosure, the possible range of the second liquid crystal molecule LC2 in the second dimming module 120 is about +90±20 degrees (about +70 degrees to about +110 degrees) or about +270±20 degrees (about +250 degrees to about +290 degrees); the possible range of the third liquid crystal molecule LC3 in the third dimming module 130 is about +90±70 degrees (about +20 degrees to about +160 degrees) or about +270±70 degrees (about +200 degrees to about +340 degrees); and the possible range of the fourth liquid crystal molecule LC4 in the fourth dimming module 140 is about 180±70 degrees (about +110 degrees to about +250 degrees) or about 0±70 degrees (about -70 degrees to about +70 degrees).

[0081] Figure 4 This means that the first liquid crystal molecules LC1 to the fourth liquid crystal molecules LC4 have Figure 3 The specific alignment angle shown (i.e. Figure 3 3 is a comparison diagram of the reflected light intensities of the third light L3 and the fourth light L4 at different viewing angles when the alignment angle (indicated by the solid line) is reflected. Figure 4The gloss meter measures the light intensity of the third light L3 and the fourth light L4 reflected by the electronic device 10 at different viewing angles, with the viewing angle as the horizontal axis and the value of the light intensity of the fourth light L4 / the light intensity of the third light L3 as the vertical axis. The "viewing angle" here refers to the angle between the receiving position and the center line of the electronic device 10 and the ground plane when the observer 3 observes the shading device 1 at the receiving position. Figure 4 It can be seen that when the viewing angle is about +50 degrees to about +70 degrees, the light intensity contrast between the third light L3 and the fourth light L4 formed by reflection from the electronic device 10 is most obvious. In other words, when the viewing angle is about +50 degrees to about +70 degrees, the black-and-white contrast between the first dimming device 11 and the second dimming device 13 of the electronic device 10 observed by the observer 3 at the receiving position is most obvious.

[0082] In an embodiment where the first alignment angle is from +25 degrees to +65 degrees and the third alignment angle is from +205 degrees to +245 degrees. When the first light L1' is irradiated from the second dimming module 120 of the first dimming device 11 to the direction of the first dimming module 110, the first light L1' will penetrate the first dimming device 11 to form the third light L3'. When the second light L2' is irradiated from the fourth dimming module 140 of the second dimming device 13 to the direction of the third dimming module 130, the second light L2' will penetrate the second dimming device 13 to form the fourth light L4', as shown in FIG. 2. At the same viewing angle and / or the same receiving position, the first light L1' and the second light L2' have the same light intensity, while the third light L3' and the fourth light L4' have different light intensities. In some embodiments, the first light L1' and the second light L2' may be lights with the same characteristics emitted by the same light source. In some embodiments, the light source may be any indoor light source. In some embodiments, the third light L3' may have different light intensities at different viewing angles. In some embodiments, the fourth light L4 ′ may have different light intensities at different viewing angles.

[0083] Figure 5 1 is a schematic top view illustrating the alignment angles of the first to fourth liquid crystal molecules LC1 to LC4 in the first to fourth dimming modules 110 to 140 according to another embodiment of the present disclosure. Figure 5 The solid lines in the figure represent the specific alignment angles of the first liquid crystal molecules LC1 to the fourth liquid crystal molecules LC4, and the arrows represent the pre-tilt angle directions. Figure 5As shown, the pre-tilt angles of the first liquid crystal molecule LC1 to the fourth liquid crystal molecule LC4 are all about +2 degrees to about +10 degrees. Taking the projection of the pre-tilt angle direction on the top-view plane as 0 degrees in the orientation angle direction, the specific orientation angle of the first liquid crystal molecule LC1 in the first dimming module 110 can be about +45 degrees; the specific orientation angle of the second liquid crystal molecule LC2 in the second dimming module 120 can be about +135 degrees; the specific orientation angle of the third liquid crystal molecule LC3 in the third dimming module 130 can be about +225 degrees; and the specific orientation angle of the fourth liquid crystal molecule LC4 in the fourth dimming module 140 can be about +315 degrees, but the present disclosure is not limited thereto. In the present disclosure, the possible range of the first liquid crystal molecule LC1 in the first dimming module 110 is approximately +45±20 degrees (approximately +25 degrees to approximately +65 degrees); the possible range of the second liquid crystal molecule LC2 in the second dimming module 120 is approximately +135±20 degrees (approximately +115 degrees to approximately +155 degrees); the possible range of the third liquid crystal molecule LC3 in the third dimming module 130 is approximately +225±20 degrees (approximately +205 degrees to approximately +245 degrees); and the possible range of the fourth liquid crystal molecule LC4 in the fourth dimming module 140 is approximately +315±20 degrees (approximately +295 degrees to approximately +335 degrees).

[0084] Figure 6 (a) and Figure 6 (b) is a diagram showing that the first liquid crystal molecules LC1 to the fourth liquid crystal molecules LC4 have Figure 5 At the specific orientation angle shown, the first light L1' and the second light L2' are irradiated from the second dimming module 120 and the fourth dimming module 140 toward the first dimming module 110 and the third dimming module 130, and penetrate the electronic device 10 to form the third light L3' and the fourth light L4' light pattern. Specifically, Figure 6 (a) is a light pattern diagram of a third light L3 ′ formed when the first light L1 ′ is irradiated from the second dimming module 120 toward the first dimming module 110 and penetrates the first dimming device 11 . Figure 6 (b) is a light pattern diagram of a fourth light L4 ′ formed when the second light L2 ′ is irradiated from the fourth dimming module 140 toward the third dimming module 130 and penetrates the second dimming device 13 . Figure 7 This means that the first liquid crystal molecules LC1 to the fourth liquid crystal molecules LC4 have Figure 5 The comparison diagram of the transmitted light intensity of the third light L3' and the fourth light L4' observed by an observer from a certain position at the specific alignment angle shown. Figure 7 yes Figure 6 (b) with Figure 6 (a) The result of the division.

[0085] Figure 6 (a) and Figure 6(b) is a light pattern diagram of the third light L3 ′ and the fourth light L4 ′ formed by penetrating the electronic device 10 measured by a visual angle analyzer (Cono or WP conometer). Figure 7 The contrast diagram of the transmitted light intensity of the third light L3 ′ and the fourth light L4 ′ formed by penetrating the electronic device 10 is measured by a visual angle analyzer (Cono or WPconometer).

[0086] Depend on Figure 6 (a) Figure 6 (b) and Figure 7 It can be seen that when the viewing angle is about +40 degrees to about +70 degrees, the light intensity contrast between the third light L3' and the fourth light L4' formed by penetrating the electronic device 10 is most obvious. In other words, when the viewing angle is about +40 degrees to about +70 degrees, the black-and-white contrast between the first dimming device 11 and the second dimming device 13 of the electronic device 10 observed by the observer 3 at the receiving position is most obvious.

[0087] In summary, the electronic device provided according to some embodiments of the present disclosure can provide obvious black and white contrast without power supply. The shading device of the present disclosure can present the required pattern and / or text according to the design requirements without power supply.

[0088] In some embodiments, the first dimming device 11 may further include an isolation structure 20 and a protection structure 30. Similarly, the second dimming device 13 may further include an isolation structure 20 and a protection structure 30. Figure 8 The first dimming device 11 including the isolation structure 20 and the protection structure 30 is described.

[0089] Figure 8 FIG. 1 is a cross-sectional schematic diagram of a first dimming device 11 according to another embodiment of the present disclosure. The normal direction of the first dimming device 11 is defined as a first direction D1. Figure 8 As shown, the first dimming device 11 includes a first dimming module 110 and a second dimming module 120 stacked along a first direction D1, a connection adhesive layer 150 located between and connecting the first dimming module 110 and the second dimming module 120, an isolation structure 20, and a protection structure 30 for protecting the first dimming device 11. In some embodiments, the isolation structure 20 or the protection structure 30 may be omitted.

[0090] The protective structure 30 may include a first protective substrate 31 and a second protective substrate 33 opposite to the first protective substrate 31. The first dimming module 110 and the second dimming module 120 are located between the first protective substrate 31 and the second protective substrate 33. In some embodiments, the first protective substrate 31 and the second protective substrate 33 may include a transparent substrate with high hardness and high strength characteristics such as a tempered glass substrate to protect the first dimming module 110 and the second dimming module 120 disposed therebetween, but the present disclosure is not limited thereto. By providing the protective structure 30, the risk of the first dimming module 110 and the second dimming module 120 being scratched or damaged can be reduced.

[0091] In some embodiments, in the first direction D1, the second dimming module 120 is located between the second protective substrate 33 and the first dimming module 110, and the first dimming module 110 is located between the first protective substrate 31 and the second dimming module 120. In other embodiments, one of the first protective substrate 31 and the second protective substrate 33 may be omitted. In some embodiments, the second protective substrate 33 may be omitted, and in the first direction D1, the second dimming module 120 may be located between the isolation structure 20 and the first dimming module 110.

[0092] The isolation structure 20 may be arranged opposite to the first dimming device 110. The isolation structure 20 may include any structure having the ability to isolate heat and / or solar radiation. In some embodiments, the isolation structure 20 may include an isolation medium 21, an isolation substrate 23, and an isolation connector 25, but the present disclosure is not limited thereto. In some embodiments, the isolation substrate 23 may include a low-emissivity (Low-E) glass substrate, a soda-lime glass substrate, a tempered glass substrate, or any combination thereof, but the present disclosure is not limited thereto. In some embodiments, the isolation connector 25 may include a frame structure having a snap-fit ​​component. In some embodiments, the isolation connector 25 may include a metal material, such as aluminum, magnesium, iron, or an alloy thereof, but the present disclosure is not limited thereto. In some embodiments, the isolation medium 21 may include a gas, such as air, argon, oxygen, or any combination thereof, but the present disclosure is not limited thereto.

[0093] In some embodiments, the isolation connector 25 may be disposed on the isolation substrate 23 and located between the isolation substrate 23 and the second protective substrate 33. In some embodiments, the isolation connector 25 may connect the isolation substrate 23 and the second protective substrate 33 through a snap-fit ​​structure and / or adhesive. Figure 8As shown. The insulating connector 25, the insulating substrate 23, and the second protective substrate 33 form a cavity. The insulating medium 21 is located between the insulating substrate 23 and the second protective substrate 33 and fills the cavity. In other embodiments, the second protective substrate 33 may be omitted, and the insulating connector 25 may be disposed on the insulating substrate 23 and located between the insulating substrate 23 and the second dimming module 120. In some embodiments, the insulating connector 25 may connect the insulating substrate 23 and the second dimming module 120 through a snap-fit ​​structure or / and glue. The insulating connector 25, the insulating substrate 23, and the second dimming module 120 form a cavity. The insulating medium 21 is located between the insulating substrate 23 and the second dimming module 120 and fills the cavity.

[0094] Through the above structure, the electronic device provided according to some embodiments of the present disclosure can provide obvious black-white contrast, durability, and / or heat and / or solar radiation isolation effect without power supply. The shading device of the present disclosure can present the required pattern and / or text according to the design requirements without power supply, and has a long service life.

[0095] Although the embodiments and advantages of the present disclosure have been disclosed as above, it should be understood that any person skilled in the art may make changes, substitutions and modifications without departing from the spirit and scope of the present disclosure. In addition, the scope of protection of the present disclosure is not limited to the processes, machines, manufactures, material compositions, devices, methods and steps in the specific embodiments described in the specification. Any person skilled in the art can understand the current or future developed processes, machines, manufactures, material compositions, devices, methods and steps from the disclosure of some embodiments of the present disclosure. As long as substantially the same functions can be implemented in the embodiments described herein or substantially the same results can be obtained, they can be used according to some embodiments of the present disclosure. Therefore, the scope of protection of the present disclosure includes the above-mentioned processes, machines, manufactures, material compositions, devices, methods and steps. In addition, each claim constitutes an individual embodiment, and the scope of protection of the present disclosure also includes the combination of each claim and embodiment.

Claims

1. An electronic device, comprising: A first dimming device, comprising: a first dimming module having a first liquid crystal layer; and a second dimming module, arranged opposite to the first dimming module and having a second liquid crystal layer; A second dimming device, disposed adjacent to the first dimming device, comprising: a third dimming module having a third liquid crystal layer; and a fourth dimming module, opposite to the third dimming module and having a fourth liquid crystal layer, The liquid crystal molecules of the first liquid crystal layer have a first alignment angle, the liquid crystal molecules of the third liquid crystal layer have a third alignment angle, and the first alignment angle is different from the third alignment angle.

2. The electronic device according to claim 1, wherein: The liquid crystal molecules of the second liquid crystal layer have a second alignment angle, and the first alignment angle is perpendicular to the second alignment angle.

3. The electronic device according to claim 1, wherein: The liquid crystal molecules of the fourth liquid crystal layer have a fourth alignment angle, and the third alignment angle is perpendicular to the fourth alignment angle.

4. The electronic device according to claim 1, wherein: The first alignment angle is from -20 degrees to +20 degrees, or from +160 degrees to +200 degrees.

5. The electronic device as claimed in claim 4, characterized in that: The third alignment angle is from +20 degrees to +160 degrees, or from +200 degrees to +340 degrees.

6. The electronic device as claimed in claim 1, wherein: The first alignment angle is between +25 degrees and +65 degrees.

7. The electronic device according to claim 6, wherein: The third alignment angle is between +205 degrees and +245 degrees.

8. The electronic device as claimed in claim 1, wherein: Liquid crystal molecules of the first liquid crystal layer, the second liquid crystal layer, the third liquid crystal layer, or the fourth liquid crystal layer have a pre-tilt angle, and the pre-tilt angle is from +2 degrees to +10 degrees.

9. A shading device capable of modulating light emitted by a light source, comprising: a first dimming device; as well as a second dimming device, disposed adjacent to the first dimming device, A first light beam emitted by the light source forms a third light beam through the first dimming device, a second light beam emitted by the light source forms a fourth light beam through the second dimming device, and the light intensity of the third light beam at a receiving angle outside the shading device is different from the light intensity of the fourth light beam at the receiving angle or position.

10. The shading device according to claim 9, characterized in that: The first dimming device further includes an isolation structure, and the isolation structure is arranged opposite to the first dimming device.

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