Electronic device

Abstract

The invention discloses an electronic device. The electronic device is provided with a plurality of pixel areas, the pixel areas are divided into a plurality of first areas and a plurality of second areas, and the electronic device comprises a first panel, a second panel, a plurality of first light filtering units and a plurality of second light filtering units. The first panel comprises a first cholesterol liquid crystal layer for reflecting the first color light; the second panel is arranged on one side of the first panel and comprises a second cholesterol liquid crystal layer for reflecting the second colored light; the first filtering unit and the second filtering unit are arranged between the first cholesterol liquid crystal layer and the second cholesterol liquid crystal layer. The plurality of first filter units are respectively located in the plurality of first areas, the plurality of second filter units are respectively located in the plurality of second areas, and the plurality of first filter units and the plurality of second filter units are used for absorbing colored light of different colors.

Description

TECHNICAL FIELD

[0001] The present invention relates to an electronic device, and more particularly to a reflective display apparatus. BACKGROUND

[0002] Reflective display apparatuses, for example, include a plurality of panels including cholesteric liquid crystals to reflect different color lights, such a display has an energy saving or low power consumption advantage, but there are still some designs that can be improved, such as how to achieve a double-sided display. SUMMARY

[0003] The present invention provides an electronic device that can achieve a double-sided display effect.

[0004] An electronic device according to the present invention has a plurality of pixel regions, and the plurality of pixel regions are divided into a plurality of first regions and a plurality of second regions. The electronic device includes a first panel, a second panel, a plurality of first filter units, and a plurality of second filter units. The first panel includes a first cholesteric liquid crystal layer to reflect a first color light. The second panel is disposed on a side of the first panel and includes a second cholesteric liquid crystal layer to reflect a second color light. The plurality of first filter units and the plurality of second filter units are disposed between the first cholesteric liquid crystal layer and the second cholesteric liquid crystal layer. The plurality of first filter units are respectively located in the plurality of first regions, the plurality of second filter units are respectively located in the plurality of second regions, and the plurality of first filter units and the plurality of second filter units are to absorb different color lights. BRIEF DESCRIPTION OF DRAWINGS

[0005] In order to make the above objectives, features and advantages of the present invention more apparent, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0006] Figure 1A FIG. 1 is a partial cross-sectional schematic view of an electronic device according to a first embodiment of the present invention.

[0007] Figure 1B FIG. 2 is a schematic view of a first region and a second region of a plurality of pixel regions in an electronic device according to the first embodiment of the present invention. 1C FIG. 3 is a schematic view of a first region and a second region of a plurality of pixel regions in an electronic device according to the first embodiment of the present invention. Figure 1A

[0008] FIG. 4 is a schematic view of a first region and a second region of a plurality of pixel regions in an electronic device according to the first embodiment of the present invention. Figure 1D Figure 1A FIG. 5 is a schematic view of a first region and a second region of a plurality of pixel regions in an electronic device according to the first embodiment of the present invention.

[0009] Figure 1E Figure 1A FIG. 6 is a schematic view of a first region and a second region of a plurality of pixel regions in an electronic device according to the first embodiment of the present invention.

[0010] Figure 2A FIG. 7 is a schematic view of a first region and a second region of a plurality of pixel regions in an electronic device according to the first embodiment of the present invention. 2B ​​FIG. 2 shows a partial cross-sectional view of an electronic device according to a second embodiment of the present application.

[0011] Figure 3A FIG. 3 shows a partial cross-sectional view of an electronic device according to a third embodiment of the present application.

[0012] Figure 3B FIG. 4 shows a schematic diagram of ambient light traveling in a first region of an electronic device according to a fourth embodiment of the present application. Figure 3A

[0013] Figure 3C FIG. 5 shows a schematic diagram of ambient light traveling in a second region of an electronic device according to a fourth embodiment of the present application. Figure 3A

[0014] Figure 4A FIG. 6 shows a partial cross-sectional view of an electronic device according to a fourth embodiment of the present application.

[0015] Figure 4B 4C FIG. 7 shows a partial cross-sectional view of different filter units in an electronic device according to a fourth embodiment of the present application. DETAILED DESCRIPTION

[0016] The electronic devices of embodiments of the present application are described in detail below. It should be noted that the description below provides many different embodiments, or implementations, of various aspects of the present application. Many of the described embodiments are provided solely as examples of how the present application can be implemented. It should be understood that these embodiments are merely meant to be illustrative of the present application and the scope of the present application is to be afforded no significance as a result of the description of these embodiments. Moreover, like reference numerals are used to describe like elements throughout the several embodiments and / or drawings.

[0017] It should be understood that relative terms are used to describe the components of the drawings in relation to each other. It should be understood that relative terms are used to describe the components of the drawings in relation to each other. For example, if a component is said to be above or under another component, then it should be understood that the component can be directly in the above or below relationship or intervening components might be present. Relative terms can be used to describe one component's relationship to another component as illustrated in the figures. It should be understood that the use of relative terms is intended to include the noun only and not its plural or singular form, unless otherwise specifically defined herein. The present application is to be afforded no significance as a result of the use of relative terms.

[0018] ​​​As used herein, the term "on" or "over" one structure (or layer, component, substrate) in relation to another structure (or layer, component, substrate) means that the two structures are adjacent and directly connected, or that the two structures are adjacent but not directly connected. The term "not directly connected" means that there is at least one intervening structure (or intervening layer, intervening component, intervening substrate, intervening space) between the two structures, the lower surface of one structure is adjacent to or directly connected to the upper surface of the intervening structure, and the upper surface of the other structure is adjacent to or directly connected to the lower surface of the intervening structure. The intervening structure can be a single layer or multiple layers of solid or non-solid structures, and is not limited. In the present disclosure, when a structure is disposed "on" another structure, it can mean that the structure is "directly" on the other structure, or that the structure is "indirectly" on the other structure, i.e., at least one structure is interposed between the structure and the other structure.

[0019] In addition, it should be understood that the use of the ordinal adjectives such as "first", "second", etc., are used to distinguish between two instances of a same item, and are not meant to imply that the items are in any way superior, subordinate, or of any importance. These ordinal adjectives are used merely to indicate one of certain occurrences or to indicate that some sequential order is present. The use of the ordinal adjectives is not meant to limit the claims to applications with more, less or only those specific ordinal adjectives.

[0020] In some embodiments of the present disclosure, the terms such as "connected", "interconnected", etc., in relation to joining or connecting, unless specifically defined, can mean that two structures are in direct contact, or can mean that two structures are not in direct contact, with other structures disposed between the two structures. Also, the terms in relation to joining or connecting can also include cases where both of the two structures are movable, or both of the two structures are fixed. In addition, the terms "electrically connected" or "coupled" include any direct and indirect electrically connecting means.

[0021] As used herein, the terms "about," "substantially," "roughly" and the like are generally intended to mean within 10%, or within 5%, or within 3%, or within 2%, or within 1%, or within 0.5% of a given value or range. Unless otherwise specified, the phrase "between a first value and a second value" means that the range includes the first value, the second value, and all the other values therebetween. Also, any two values or directions used to compare quantities can have a margin of error. If a first value is equal to a second value, it is implied that the first value and the second value can be within about 10% of each other; if a first direction is perpendicular to a second direction, the first direction and the second direction can be within 80-100 degrees of each other; if a first direction is parallel to a second direction, the first direction and the second direction can be within 0-10 degrees of each other. In the present disclosure, the phrase "a given range of a first value to a second value" or "a given range falling within a first value to a second value" means that the given range includes the first value, the second value, and all the other values therebetween.

[0022] Further, according to embodiments of the present disclosure, the thickness, length, width, or distance, angle between components of each assembly can be measured using optical microscopy (OM), scanning electron microscopy (SEM), an alpha-step, an ellipsometer, or other suitable means. In particular, according to some embodiments, a cross-sectional image of a structure can be obtained using a scanning electron microscope, and the thickness, length, width, or distance, angle between components can be measured.

[0023] Throughout this specification and the claims that follow, certain terms can be used consistently with certain terminology in patent law. Those skilled in the art will appreciate that electronic device manufacturers can refer to the same component by different names. No language in this document is intended to cause limitation of the application based on the names of components. The words "comprise," "comprising," "include," "including," and the like are to be construed in an open-ended fashion, indicating the presence of those elements and

[0024] It is to be understood that the embodiments which follow can be substituted, combined, and / or interchanged with features from other embodiments to form further embodiments without departing from the spirit of the present disclosure. Features from one embodiment can be combined with features from another embodiment as long as the combination does not result in a contradiction or an inconsistency.

[0025] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure and will not be interpreted in an overly literal or overly formal sense unless expressly so defined herein. The application can be understood with reference to the following detailed description and drawings, in which:

[0026] Certain terms will now be defined, for the sake of clarity, in the context of the present application throughout the specification and in the claims. Those skilled in the art will recognize that electronic device manufacturers can refer to the same component by different names. As such, this description should not be construed as limited to the particular names used herein.

[0027] The electronic device of the present disclosure can include electronic components. The electronic components can include passive components, active components, or a combination thereof, such as capacitors, resistors, inductors, varactor diodes, variable capacitors, filters, diodes, transistors, sensors, micro electro mechanical system (MEMS), liquid crystal chips, and the like, but are not limited thereto. The diodes can include light emitting diodes or non-light emitting diodes. The diodes can include P-N junction diodes, PIN diodes, or constant current diodes. The light emitting diodes can include, for example, organic light emitting diodes (OLEDs), mini LEDs, micro LEDs, quantum dot LEDs, fluorescence, phosphor, or other suitable materials, or a combination thereof, but are not limited thereto. The sensors can include, for example, capacitive sensors, optical sensors, electromagnetic sensors, fingerprint sensors (FPSs), touch sensors, antennas, pen sensors, and the like, but are not limited thereto. Hereinafter, the display device will be described as an electronic device to explain the present disclosure, but is not limited thereto.

[0028] The electronic device can include an imaging device, a bonding device, a display device, a backlight device, an antenna device, a tiled device, a touch display, a curved display, or a free shape display, but is not limited thereto. The electronic device can include, for example, a liquid crystal, a light emitting diode, a fluorescence, a phosphor, other suitable display medium, or a combination thereof, but is not limited thereto. The display device can be a non-self-emissive display device or a self-emissive display device. The antenna device can be a liquid crystal type antenna device or a non-liquid crystal type antenna device, and the sensing device can be a sensing device that senses a capacitance, light, heat energy, or ultrasound, but is not limited thereto. The tiled device can be, for example, a display tiled device or an antenna tiled device, but is not limited thereto. It is noted that the electronic device can be any arrangement combination of the aforementioned, but is not limited thereto. The electronic device can be a bendable or flexible electronic device. It is noted that the electronic device can be any arrangement combination of the aforementioned, but is not limited thereto. In addition, the electronic device can have a rectangular, circular, polygonal, shape with curved edges, or other suitable shape. The electronic device can have a driving system, a control system, a light source system, a shelf system, and the like, as peripheral systems to support the display device, the antenna device, or the tiled device. It is understood that the features of the embodiments described below can be replaced, recombined, mixed to complete other embodiments without departing from the spirit of the present application. The features of the embodiments can be arbitrarily mixed and used as long as they do not conflict with each other and do not violate the spirit of the present application. It is noted that the technical solutions provided in the different embodiments below can be replaced, combined, or mixed to form another embodiment without violating the spirit of the present application. Figure 1A A schematic diagram of an electronic device according to an embodiment of the present application.

[0029] Figure 1D And 1E A schematic diagram of light absorption and reflection of an electronic device according to an embodiment of the present application. In which, Figure 1D And 1E The electronic device shown in Figure 1A is the same as Figure 1D , and for the convenience of description, 1E The electronic device of

[0030] Please refer to Figure 1A , Figure 1A is a partial cross-sectional schematic diagram of an electronic device 10 according to a first embodiment of the present application. As shown in Figure 1AAs shown, the electronic device 10 of the present embodiment includes a first panel 11, a second panel 12, a plurality of first filter units 141, and a plurality of second filter units 142.

[0031] In addition, as Figure 1A As shown, the electronic device 10 of the present embodiment further includes a third panel 13, a plurality of third filter units 143, and a plurality of light-transmissive units 15.

[0032] In the present embodiment, the electronic device 10 can be, for example but not limited to, a cholesteric liquid crystal reflective display device having a plurality of pixel areas, and the plurality of pixel areas are divided into a plurality of first areas PA and a plurality of second areas PB. As Figure 1B As shown, the number of the first areas PA can be the same as or different from the number of the second areas PB. The first areas PA can be adjacent to the second areas PB. As Figure 1B As shown, the plurality of first areas PA can be, for example, arranged in a plurality of rows (the rows are arranged along the second direction Y, for example), and each row of the first areas PA can include, for example, a plurality of first areas PA arranged in sequence along the first direction X. The plurality of second areas PB can be, for example, arranged in a plurality of rows (the rows are arranged along the second direction Y, for example), and each row of the second areas PB can include, for example, a plurality of second areas PB arranged in sequence along the first direction X. As Figure 1B As shown, the plurality of rows of the first areas PA and the plurality of rows of the second areas PB are arranged in an interlaced manner along the second direction Y, for example. For example, along the second direction Y, the first row includes a plurality of first areas PA, the second row includes a plurality of second areas PB, the third row includes a plurality of first areas PA, the fourth row includes a plurality of second areas PB, and so on, but not limited thereto. In other embodiments, as Figure 1C As shown, the plurality of first areas PA and the plurality of second areas PB are arranged in an interlaced manner along the first direction X and the second direction Y, for example.

[0033] Please refer to Figure 1A which only shows a set of an adjacent first area PA and a second area PB. As Figure 1AAs shown, the first panel 11 includes a first cholesteric liquid crystal layer 111 for reflecting a first color light (the first color light can be reflected when the first cholesteric liquid crystal layer 111 is switched to a planer state). In the present embodiment, the first color light is blue light, for example, and the reflected color light of the first cholesteric liquid crystal layer 111 in the planer state can be a blue light band. However, the present application is not limited thereto. In addition, the first panel 11 further includes a substrate 112a and a substrate 113a, an electrode layer 112b and an electrode layer 113b opposite to each other. The electrode layer 112b is disposed between the first cholesteric liquid crystal layer 111 and the substrate 112a, and the electrode layer 113b is disposed between the first cholesteric liquid crystal layer 111 and the substrate 113a. In the present embodiment, the substrate 112a and the substrate 113a can include a light-transmissive substrate, and the materials of the substrate 112a and the substrate 113a can include transparent or non-transparent organic materials and / or inorganic materials. The materials of the substrate 112a and the substrate 113a can include hard materials or flexible soft materials. The organic materials can include polyimide (PI), polycarbonate (PC), polyethyleneterephthalate (PET), liquid crystal polymer (LCP), other known suitable materials or combinations thereof, but the present application is not limited thereto. The inorganic materials can include glass, quartz, sapphire or ceramic, but the present application is not limited thereto. The materials of the electrode layer 112b and the electrode layer 113b can include transparent conductive materials, such as but not limited to ITO or IZO, and the present application is not limited thereto.

[0034] In addition, as shown, Figure 1A The second panel 12 is disposed on one side of the first panel 11 and includes a second cholesteric liquid crystal layer 121 for reflecting a second color light (the second color light can be reflected when the second cholesteric liquid crystal layer 121 is switched to a planer state). In the present embodiment, the second color light is green light, for example, and the reflected color light of the second cholesteric liquid crystal layer 121 in the planer state can be a green light band. However, the present application is not limited thereto. In addition, the second panel 12 further includes a substrate 122a and a substrate 123a, an electrode layer 122b and an electrode layer 123b opposite to each other. The electrode layer 122b is disposed between the second cholesteric liquid crystal layer 121 and the substrate 122a, and the electrode layer 123b is disposed between the second cholesteric liquid crystal layer 121 and the substrate 123a. In the present embodiment, the materials of the substrate 122a and the substrate 123a can refer to the materials of the substrate 112a or the substrate 113a described above, and the materials of the electrode layer 122b and the electrode layer 123b can refer to the materials of the electrode layer 112b or the electrode layer 113b described above.

[0035] Furthermore, as shown, Figure 1AAs shown, the third panel 13 is disposed on the side of the second panel 12 away from the first panel 11, i.e., the second panel 12 is disposed between the first panel 11 and the third panel 13, and the third panel 13 includes a third cholesteric liquid crystal layer 131 for reflecting a third color light (the third color light can be reflected when the third cholesteric liquid crystal layer 131 is switched to a planer state). In the present embodiment, the reflection wavelength band of the third cholesteric liquid crystal layer 131 in the planer state can be, for example, a red light wavelength band, and thus the third color light is red light, but is not limited thereto. In addition, the third panel 13 further includes substrates 132a and 133a opposite to each other, electrode layers 132b and 133b, the electrode layer 132b is disposed between the third cholesteric liquid crystal layer 131 and the substrate 132a, and the electrode layer 133b is disposed between the third cholesteric liquid crystal layer 131 and the substrate 133a. In the present embodiment, the materials of the substrates 132a and 133a can refer to the materials of the substrates 112a or 113a described above, and the materials of the electrode layers 132b and 133b can refer to the materials of the electrode layers 112b or 113b described above.

[0036] In addition, the first panel 11 and the second panel 12 and the second panel 12 and the third panel 13 of the present embodiment can be directly fixed or fixed through other intermediate layers, for example, can be fixed through a (transparent) adhesive layer, which is not limited.

[0037] In the present embodiment, the electronic device 10 is provided with a plurality of light filtering units, including a plurality of first light filtering units 141, a plurality of second light filtering units 142, and a plurality of third light filtering units 143. As shown, the first light filtering units 141 are disposed on the first panel 11, the second light filtering units 142 are disposed on the second panel 12, and the third light filtering units 143 are disposed on the third panel 13. Figure 1AAs shown, a plurality of first filter units 141 and a plurality of second filter units 142 are arranged between the first panel 11 (the first cholesteric liquid crystal layer 111) and the second panel 12 (the second cholesteric liquid crystal layer 121), the plurality of first filter units 141 are respectively located in the plurality of first areas PA, and the plurality of second filter units 142 are respectively located in the plurality of second areas PB. Another plurality of second filter units 142 and a plurality of third filter units 143 are arranged between the second panel 12 (the second cholesteric liquid crystal layer 121) and the third panel 13 (the third cholesteric liquid crystal layer 131), the another plurality of second filter units 142 are respectively located in the plurality of first areas PA, and the plurality of third filter units 143 are respectively located in the plurality of second areas PB. In addition, another plurality of third filter units 143 and a plurality of light transmission units 15 are arranged on the side of the third panel 13 (the third cholesteric liquid crystal layer 131) away from the second panel 12 (the second cholesteric liquid crystal layer 121), the another plurality of third filter units 143 are respectively located in the plurality of first areas PA, and the plurality of light transmission units 15 are respectively located in the plurality of second areas PB. Another plurality of first filter units 141 and another plurality of light transmission units 15 are arranged on the side of the first panel 11 (the first cholesteric liquid crystal layer 111) away from the second panel 12 (the second cholesteric liquid crystal layer 121), the another plurality of first filter units 141 are respectively located in the plurality of second areas PB, and the another plurality of light transmission units 15 are respectively located in the plurality of first areas PA. As shown in FIG. 1, the first panel 11 (the first cholesteric liquid crystal layer 111), the second panel 12 (the second cholesteric liquid crystal layer 121), and the third panel 13 (the third cholesteric liquid crystal layer 131) are arranged in a stack, and the plurality of first filter units 141, the plurality of second filter units 142, the plurality of third filter units 143, and the plurality of light transmission units 15 are arranged in a stack. Figure 1AAs shown, in one of the first areas PA, from top to bottom, sequentially includes the following components: a light transmission unit 15, part of the first panel 11 (the first cholesteric liquid crystal layer 111), a first filter unit 141, part of the second panel 12 (the second cholesteric liquid crystal layer 121), a second filter unit 142, part of the third panel 13 (the third cholesteric liquid crystal layer 131), and a third filter unit 143, but not limited thereto. In the second area PB, from top to bottom, sequentially includes the following components: a first filter unit 141, part of the first panel 11 (the first cholesteric liquid crystal layer 111), a second filter unit 142, part of the second panel 12 (the second cholesteric liquid crystal layer 121), a third filter unit 143, part of the third panel 13 (the third cholesteric liquid crystal layer 131), and a light transmission unit 15, but not limited thereto. The first filter units 141 and the other first filter units 141 are used to absorb color lights of the same color, for example, and the wavelength range of the color lights of the same color absorbed and the first color light reflected by the first cholesteric liquid crystal layer 111 can at least partially overlap, for example. The second filter units 142 and the other second filter units 142 are used to absorb color lights of the same color, for example, and the wavelength range of the color lights of the same color absorbed and the second color light reflected by the second cholesteric liquid crystal layer 121 can at least partially overlap, for example. The third filter units 143 and the other third filter units 143 are used to absorb color lights of the same color, for example, and the wavelength range of the color lights of the same color absorbed and the third color light reflected by the third cholesteric liquid crystal layer 131 can at least partially overlap, for example. The first filter units 141 and the second filter units 142 are used to absorb color lights of different colors, respectively. The third filter units 143 and the first filter units 141 and the second filter units 142 are used to absorb color lights of different colors, respectively. In other words, the absorption wavelength of light by the first filter units 141, the absorption wavelength of light by the second filter units 142, and the absorption wavelength of light by the third filter units 143 are all different. In an embodiment, the first color light is blue light, the second color light is green light, and the third color light is red light, for example, so the first filter units 141 are filter units that absorb blue light, for example, the second filter units 142 are filter units that absorb green light, and the third filter units 143 are filter units that absorb red light, but the wavelength range of the blue light absorbed by the first filter units 141 can be the same as or slightly different from the wavelength range of the first color light, the wavelength range of the green light absorbed by the second filter units 142 can be the same as or slightly different from the wavelength range of the second color light, and the wavelength range of the red light absorbed by the third filter units 143 can be the same as or slightly different from the wavelength range of the third color light. It should be noted that the above description is only an example and is not intended to limit the scope of the present application, which is not limited thereto.

[0038] Next, please refer to Figure 1D and1E The functioning of the various pixel areas in the electronic device 10 is illustrated, in which Figure 1D A schematic diagram showing the travel of ambient light in a first area PA, Figure 1E A schematic diagram showing the travel of ambient light in a second area PB. In this embodiment, as Figure 1DAs shown, the ambient light is first roughly divided into three color lights, including red light R (third color light), green light G (second color light) and blue light B (first color light), and the polarization states of the color lights can be split into left-handed polarized light and right-handed polarized light. For the convenience of describing the operation of the embodiments, the first cholesteric liquid crystal layer 111, the second cholesteric liquid crystal layer 121 and the third cholesteric liquid crystal layer 131 are all assumed to be left-handed liquid crystal, but the present application is not limited thereto. The cholesteric liquid crystal layers reflect color light (or wavelength light) of corresponding pitch and handedness in the planar state, for example, the first cholesteric liquid crystal layer 111 reflects left-handed blue light in the planar state, the second cholesteric liquid crystal layer 121 reflects left-handed green light in the planar state, and the third cholesteric liquid crystal layer 131 reflects left-handed red light in the planar state, but the present application is not limited thereto. When the (ambient) light is incident from above the first area PA (for example, adjacent to the light-transmitting unit 15), most of the red light R, green light G and blue light B can pass through the light-transmitting unit 15; then, most of the red light R and green light G can pass through the first panel 11 (the first cholesteric liquid crystal layer 111) and the first filter unit 141 (a blue light absorbing filter unit), the first cholesteric liquid crystal layer 111 can reflect part of the blue light B (for example, left-handed blue light), that is, the first cholesteric liquid crystal layer 111 can reflect left-handed blue light B when it is in the planar state, and another part of the blue light B (right-handed blue light B) can still pass through the first cholesteric liquid crystal layer 111, but another part of the blue light B (right-handed blue light B) that passes through the first cholesteric liquid crystal layer 111 is mostly absorbed by the first filter unit 141 (a blue light absorbing filter unit) below, so that only most of the red light R and green light G can pass through the first filter unit 141, for example; then, most of the red light R can pass through the second panel 12 (the second cholesteric liquid crystal layer 121) and the second filter unit 142 (a green light absorbing filter unit), the second cholesteric liquid crystal layer 121 can reflect part of the green light G (for example, left-handed green light), that is, the second cholesteric liquid crystal layer 121 can reflect left-handed green light G when it is in the planar state, and another part of the green light G (right-handed green light G) can mostly pass through the second cholesteric liquid crystal layer 121, but another part of the green light G (right-handed green light G) that passes through the second cholesteric liquid crystal layer 121 is mostly absorbed by the second filter unit 142 (a green light absorbing filter unit) below, so that only most of the red light R can pass through the second filter unit 142, for example; then, the third cholesteric liquid crystal layer 131 can reflect part of the red light R (for example, left-handed red light), that is, the third cholesteric liquid crystal layer 131 can reflect left-handed red light R when it is in the planar state, and another part of the red light R (right-handed red light R) can mostly pass through the third cholesteric liquid crystal layer 131, but another part of the red light R (right-handed red light R) that passes through the third cholesteric liquid crystal layer 131 is absorbed by the third filter unit 143 (a red light absorbing filter unit), so that no light can pass through the third filter unit 143 and be displayed by the area below.Moreover, when the cholesteric liquid crystal layer is in the focal conic state, most of the left-handed light or right-handed light will not be reflected when passing through the cholesteric liquid crystal layer. Therefore, the blue light B (including left-handed blue light or right-handed blue light), the green light G (including left-handed green light or right-handed green light), and the red light R (including left-handed red light or right-handed red light) will be mostly absorbed by the first filter unit 141, the second filter unit 142, and the third filter unit 143, respectively. Thus, substantially no light can pass through the third filter unit 143 to be displayed by the lower area.

[0039] In addition, when the ambient light enters from the lower side (e.g., the side close to the third filter unit 143) of the first area PA of the pixel area, most of the green light G and the blue light B can pass through the third filter unit 143 (the red light absorbing filter unit) and the third cholesteric liquid crystal layer 131, and most of the red light R is absorbed by the third filter unit 143 (the red light absorbing filter unit). Then, most of the blue light B can pass through the second filter unit 142 (the green light absorbing filter unit) and the second cholesteric liquid crystal layer 121, but most of the green light G is absorbed by the second filter unit 142 (the green light absorbing filter unit). Next, most of the blue light B is absorbed by the first filter unit 141 (the blue light absorbing filter unit). Thus, the light entering from the lower side (e.g., the side close to the third filter unit 143) of the first area PA cannot pass through the first filter unit 141 to be displayed by the upper area.

[0040] Therefore, in the present embodiment, the user can view the image presented by the first area PA from the upper area of the electronic device 10, but the first area PA does not display the image toward the lower area of the electronic device 10.

[0041] In addition, in the present embodiment, as described above, the first filter unit 141, the second filter unit 142, and the third filter unit 143 are arranged in the pixel area PA of the electronic device 10. Figure 1EAs shown, when ambient light is incident from below the second area PB (e.g. the side of the near-transmissive light unit 15), most of the red light R, green light G and blue light B can pass through the below transmissive light unit 15; then, most of the green light G and blue light B can pass through the third panel 13 (third cholesteric liquid crystal layer 131) and the third filter unit 143 (red light absorbing filter unit), the third cholesteric liquid crystal layer 131 can reflect part of the red light R (left-handed red light R), i.e. when the third cholesteric liquid crystal layer 131 is in the planar state, it can reflect the left-handed red light R, while the other part of the red light R (right-handed red light R) can still pass through the third cholesteric liquid crystal layer 131, but the other part of the red light R (right-handed red light R) that passes through the third cholesteric liquid crystal layer 131 will be mostly absorbed by the above third filter unit 143 (red light absorbing filter unit), so only most of the green light G and blue light B can pass through the third filter unit 143; next, most of the blue light B can pass through the second panel 12 (second cholesteric liquid crystal layer 121) and the second filter unit 142 (green light absorbing filter unit), the second cholesteric liquid crystal layer 121 can reflect part of the green light G (left-handed green light G), i.e. when the second cholesteric liquid crystal layer 121 is in the planar state, it can reflect the left-handed green light G, while the other part of the green light G (right-handed green light G) can mostly pass through the second cholesteric liquid crystal layer 121, but the other part of the green light G (right-handed green light G) that passes through the second cholesteric liquid crystal layer 121 will be mostly absorbed by the above second filter unit 142 (green light absorbing filter unit), so only most of the blue light B can pass through the second filter unit 142, for example; then, the first cholesteric liquid crystal layer 111 can reflect part of the blue light B (left-handed blue light B), i.e. when the first cholesteric liquid crystal layer 111 is in the planar state, it can reflect the left-handed blue light B, while the other part of the blue light B (right-handed blue light B) can mostly pass through the first cholesteric liquid crystal layer 111, but the other part of the blue light B (right-handed blue light B) that passes through the first cholesteric liquid crystal layer 111 will be mostly absorbed by the above first filter unit 141 (blue light absorbing filter unit), so no light can pass through the first filter unit 141 to be displayed by the above area, for example. In addition, when the cholesteric liquid crystal layer is in the focal conic state, most of the light will not be reflected regardless of whether it is left-handed or right-handed when passing through the cholesteric liquid crystal layer, so the red light R (left-handed red light or right-handed red light), green light G (left-handed green light or right-handed green light) and blue light B (left-handed blue light or right-handed blue light) are absorbed by the third filter unit 143, second filter unit 142 and first filter unit 141, respectively, for example, so no light can pass through the first filter unit 141 to be displayed by the above area, for example.

[0042] Furthermore, when ambient light enters from above the second region PB (e.g., near the first filter unit 141), most of the green light G and red light R can pass through the first filter unit 141 (the filter unit that absorbs blue light) and the first cholesteric liquid crystal layer 111, but most of the blue light B will be absorbed by the first filter unit 141 (the filter unit that absorbs blue light); then, most of the red light R can pass through the second filter unit 142 (the filter unit that absorbs green light) and the second cholesteric liquid crystal layer 121, but most of the green light G will be absorbed by the second filter unit 142 (the filter unit that absorbs green light); then, most of the red light R will be absorbed by the third filter unit 143 (the filter unit that absorbs red light), so the light entering from above the second region PB cannot pass through the third filter unit 143 and is displayed in the lower region.

[0043] Therefore, in this embodiment, the user can view the image presented by the second area PB from the lower area of ​​the electronic device 10, but the second area PB will not display the image towards the upper area of ​​the electronic device 10.

[0044] Additionally, in this embodiment, as Figure 1A As shown, the electronic device 10 may further include a plurality of light-shielding components 16, respectively disposed between the first cholesteric liquid crystal layer 111 and the second cholesteric liquid crystal layer 121. In the direction of top view of the electronic device, one of the plurality of light-shielding components 16 overlaps the boundary between one of the plurality of first filter units 141 and one of the adjacent plurality of second filter units 142. The plurality of light-shielding components 16 are respectively disposed between the second cholesteric liquid crystal layer 121 and the third cholesteric liquid crystal layer 131. In the direction of top view of the electronic device, one of the plurality of light-shielding components 16 overlaps the boundary between one of the plurality of second filter units 142 and one of the adjacent plurality of third filter units 143. The plurality of light-shielding components 16 are respectively disposed on the side of the third cholesteric liquid crystal layer 131 away from the second cholesteric liquid crystal layer 121. In the direction of top view of the electronic device, one of the plurality of light-shielding components 16 overlaps the boundary between one of the plurality of third filter units 143 and one of the adjacent plurality of light-transmitting units 15. A plurality of light-shielding components 16 are respectively disposed on the side of the first cholesteric liquid crystal layer 111 away from the second cholesteric liquid crystal layer 121. In a top-view view of the electronic device, one of the plurality of light-shielding components 16 overlaps the boundary between one of the plurality of light-transmitting units 15 and one of the adjacent plurality of first light-filtering units 141. In other words, each light-shielding component 16 is, for example, disposed at the boundary between two adjacent light-filtering units or at the boundary between an adjacent light-filtering unit and a light-transmitting unit 15. In other words, each light-shielding component 16 is, for example, disposed at the boundary between the first region PA and the second region PB. In one embodiment, the light-shielding component 16 may include, for example, a black matrix layer or other light-shielding components, but the invention is not limited thereto.

[0045] Figure 2A and 2B This diagram shows a partial cross-sectional view of an electronic device of a different form according to a second embodiment of the present invention.

[0046] like Figure 2A The component configuration and connection relationship of the electronic device 10a shown are generally the same as those of the electronic device 10 in the aforementioned embodiment, except that, in such... Figure 2A In the electronic device 10a shown, the light-transmitting unit 15 and the first light-filtering unit 141 (a light-filtering unit that absorbs blue light) disposed above the first cholesteric liquid crystal layer 111 may be disposed, for example, in the first panel 11; the first light-filtering unit 141 (a light-filtering unit that absorbs blue light) and the second light-filtering unit 142 (a light-filtering unit that absorbs green light) disposed above the second cholesteric liquid crystal layer 121 may be disposed, for example, in the second panel 12; and the second light-filtering unit 142 (a light-filtering unit that absorbs green light) and the third light-filtering unit 143 (a light-filtering unit that absorbs red light) disposed above the third cholesteric liquid crystal layer 131 may be disposed in the third panel 13, but are not limited thereto. In detail, the light-transmitting unit 15 and the first light-filtering unit 141 are disposed between the substrate 112a and the electrode layer 112b, wherein the light-transmitting unit 15 is disposed in the first region PA and the first light-filtering unit 141 is disposed in the second region PB; in the second panel 12, the first light-filtering unit 141 and the second light-filtering unit 142 are disposed between the substrate 122a and the electrode layer 122b, wherein the first light-filtering unit 141 is disposed in the first region PA and the second light-filtering unit 142 is disposed in the second region PB; in the third panel 13, the second light-filtering unit 142 and the third light-filtering unit 143 are disposed between the substrate 132a and the electrode layer 132b, wherein the second light-filtering unit 142 is disposed in the first region PA and the third light-filtering unit 143 is disposed in the second region PB.

[0047] It should be noted that other detailed descriptions of the electronic device 10a in this embodiment can be found in the foregoing embodiments, and will not be repeated here.

[0048] like Figure 2B The component configuration and connection relationship of the electronic device 10b shown are generally the same as those of the electronic device 10 in the aforementioned embodiment, except that, in such... Figure 2BIn the electronic device 10b shown, the first filter unit 141 and the second filter unit 142 disposed below the first cholesteric liquid crystal layer 111 can be disposed in the first panel 11, the second filter unit 142 and the third filter unit 143 disposed below the second cholesteric liquid crystal layer 121 can be disposed in the second panel 12, and the third filter unit 143 and the light-transmitting unit 15 disposed below the third cholesteric liquid crystal layer 131 can be disposed in the third panel 13. In detail, in the first panel 11, the first filter unit 141 and the second filter unit 142 are disposed between the substrate 113a and the electrode layer 113b, wherein the first filter unit 141 is disposed in the first area PA and the second filter unit 142 is disposed in the second area PB; in the second panel 12, the second filter unit 142 and the third filter unit 143 are disposed between the substrate 123a and the electrode layer 123b, wherein the second filter unit 142 is disposed in the first area PA and the third filter unit 143 is disposed in the second area PB; and in the third panel 13, the third filter unit 143 and the light-transmitting unit 15 are disposed between the substrate 133a and the electrode layer 133b, wherein the third filter unit 143 is disposed in the first area PA and the light-transmitting unit 15 is disposed in the second area PB.

[0049] It should be noted that other detailed descriptions of the electronic device 10b of the present embodiment can refer to the foregoing embodiments, and will not be described herein.

[0050] Figure 3A A partial cross-sectional schematic view of an electronic device of a third embodiment of the present application is shown.

[0051] As Figure 3A The component configuration and connection relationship of the electronic device 10c shown are substantially the same as those of the electronic device 10 of the foregoing embodiments, except that, as Figure 3AAs shown, the electronic device 10c employs a plurality of light shielding units 17 to replace the portion of the third filter units 143 located under the third cholesteric liquid crystal layer 131 or to replace the portion of the first filter units 141 located on the first cholesteric liquid crystal layer 111, for example, the plurality of light shielding units 17 can be disposed on the side of the third cholesteric liquid crystal layer 131 away from the second cholesteric liquid crystal layer 121 and respectively located in the plurality of first regions PA. In this embodiment, the plurality of light transmitting units 15 are disposed on the side of the third cholesteric liquid crystal layer 131 away from the second cholesteric liquid crystal layer 121 and respectively located in the plurality of second regions PB. Alternatively, the plurality of light shielding units 17 can be disposed on the side of the first cholesteric liquid crystal layer 111 away from the second cholesteric liquid crystal layer 121 and respectively located in the plurality of second regions PB. In this embodiment, the plurality of light transmitting units 15 are disposed on the side of the first cholesteric liquid crystal layer 111 away from the second cholesteric liquid crystal layer 121 and respectively located in the plurality of first regions PA. In this embodiment, the light shielding units 17 can for example comprise a black absorbing layer. In this embodiment, the light shielding units 17 can for example have a light wavelength band that absorbs the visible light wavelength band (for example, wavelength 380nm to 780nm), so that the contrast of the displayed image can be improved.

[0052] Next, referring to Figure 3B and 3C the operation of each pixel region in the electronic device 10c is described, wherein Figure 3B a schematic diagram showing the travel of (ambient) light in a first region PA, Figure 3C a schematic diagram showing the travel of (ambient) light in a second region PB. In this embodiment, as Figure 3BAs shown, the (ambient) light is first roughly divided into three color lights, including red light R (third wavelength light), green light G (second wavelength light) and blue light B (first wavelength light), and the polarization states of the above lights can be split into left-handed polarized light and right-handed polarized light. For the convenience of describing the operation of the embodiments, the first cholesteric liquid crystal layer 111, the second cholesteric liquid crystal layer 121 and the third cholesteric liquid crystal layer 131 are all assumed to be left-handed liquid crystals, but the present application is not limited thereto. The above cholesteric liquid crystal layers will reflect the color light (or wavelength light) corresponding to the pitch and handedness thereof in the planar state. For example, the first cholesteric liquid crystal layer 111 reflects left-handed blue light in the planar state, the second cholesteric liquid crystal layer 121 reflects left-handed green light in the planar state, and the third cholesteric liquid crystal layer 131 reflects left-handed green light in the planar state, but the present application is not limited thereto. When the (ambient) light enters from above the first area PA (near the light transmission unit 15 side), the red light R, the green light G and the blue light B can pass through the light transmission unit 15. Then, most of the red light R and the green light G can pass through the first panel 11 (the first cholesteric liquid crystal layer 111) and the first filter unit 141 (a blue light absorbing filter unit), the first cholesteric liquid crystal layer 111 can reflect part of the blue light B (for example, left-handed blue light), that is, the first cholesteric liquid crystal layer 111 can reflect left-handed blue light B when it is in the planar state, and another part of the blue light B (right-handed blue light B) can still pass through the first cholesteric liquid crystal layer 111, but the other part of the blue light B (right-handed blue light B) that passes through the first cholesteric liquid crystal layer 111 may, for example, be absorbed by the first filter unit 141 (a blue light absorbing filter unit) below, so that, for example, only most of the red light R and the green light G can pass through the first filter unit 141. Next, most of the red light R can pass through the second panel 12 (the second cholesteric liquid crystal layer 121) and the second filter unit 142 (a green light absorbing filter unit), the second cholesteric liquid crystal layer 121 can reflect part of the green light G (for example, left-handed green light), that is, the second cholesteric liquid crystal layer 121 can reflect left-handed green light G when it is in the planar state, and another part of the green light G (right-handed green light G) can pass through the second cholesteric liquid crystal layer 121, but the other part of the green light G (right-handed green light G) that passes through the second cholesteric liquid crystal layer 121 may, for example, be mostly absorbed by the second filter unit 142 (a green light absorbing filter unit) below, so that, for example, only most of the red light R can pass through the second filter unit 142. Then, the third cholesteric liquid crystal layer 131 can reflect part of the red light R (for example, left-handed red light), that is, the third cholesteric liquid crystal layer 131 can reflect left-handed red light R when it is in the planar state, and another part of the red light R (right-handed red light R) can pass through the third cholesteric liquid crystal layer 131, but the other part of the red light R (right-handed red light R) that passes through the third cholesteric liquid crystal layer 131 may, for example, be absorbed by the light shielding unit 17 below, so that no light can pass through the light shielding unit 17 and be displayed by the area below.Moreover, when the cholesteric liquid crystal layer is in the focal conic state, neither left-handed light nor right-handed light is reflected when passing through the cholesteric liquid crystal layer. Therefore, blue light B (including left-handed blue light or right-handed blue light), green light G (including left-handed green light or right-handed green light), and red light R (including left-handed red light or right-handed red light) are absorbed by the light blocking unit 17 below the first filter unit 141, the second filter unit 142, and the third cholesteric liquid crystal layer 131, respectively. Thus, for example, no light can pass through the light blocking unit 17 to be displayed from the upper area.

[0053] In addition, when (ambient) light is incident from below the first area PA (adjacent to the light blocking unit 17 side), most of the red light R (including left-handed red light or right-handed red light), most of the green light G (including left-handed green light or right-handed green light), and most of the blue light B (including left-handed blue light or right-handed blue light) are absorbed by the light blocking unit 17 below. Thus, the light incident from below the first area PA cannot pass through the light blocking unit 17 to be displayed from the upper area.

[0054] Therefore, in the present embodiment, the user can view the image presented by the first area PA from the upper area of the electronic device 10c, but the first area PA does not display the image toward the lower area of the electronic device 10c.

[0055] In addition, in the present embodiment, as Figure 3CAs shown, when (ambient) light is incident from below the second area PB (near the light-transmitting unit 15), most of the red light R, green light G and blue light B can pass through the light-transmitting unit 15 below; then, most of the green light G and blue light B can pass through the third panel 13 (third cholesteric liquid crystal layer 131) and third filter unit 143 (filter unit absorbing red light), the third cholesteric liquid crystal layer 131 can reflect part of the red light R (left-handed red light R), that is, when the third cholesteric liquid crystal layer 131 is in a planar state, it can reflect left-handed red light R, and another part of the red light R (right-handed red light R) can mostly penetrate the third cholesteric liquid crystal layer 131, but another part of the red light R (right-handed red light R) penetrating the third cholesteric liquid crystal layer 131 will be mostly absorbed by the third filter unit 143 (filter unit absorbing red light) above, so that, for example, only most of the green light G and blue light B can pass through the third filter unit 143; next, most of the blue light B can pass through the second panel 12 (second cholesteric liquid crystal layer 121) and second filter unit 142 (filter unit absorbing green light), the second cholesteric liquid crystal layer 121 can reflect part of the green light G (left-handed green light G), that is, when the second cholesteric liquid crystal layer 121 is in a planar state, it can reflect left-handed green light G, and another part of the green light G (right-handed green light G) can mostly penetrate the second cholesteric liquid crystal layer 121, but the right-handed green light G penetrating the second cholesteric liquid crystal layer 121 will be absorbed by the second filter unit 142 (filter unit absorbing green light) above, so that, for example, only most of the blue light B can pass through the second filter unit 142; then, the first cholesteric liquid crystal layer 111 can reflect part of the blue light B (left-handed blue light B), that is, when the first cholesteric liquid crystal layer 111 is in a planar state, it can reflect left-handed blue light B, and another part of the blue light B (right-handed blue light B) can penetrate the first cholesteric liquid crystal layer 111, but another part of the blue light B (right-handed blue light B) penetrating the first cholesteric liquid crystal layer 111 will be mostly absorbed by the light-blocking unit 17 above, so that, for example, no light can pass through the light-blocking unit 17 to be displayed by the upper area. In addition, when the cholesteric liquid crystal layer is in a focal conic state, neither left-handed light nor right-handed light will be reflected when passing through the cholesteric liquid crystal layer, so that, for example, the red light R (left-handed red light or right-handed red light), green light G (left-handed green light or right-handed green light) and blue light B (left-handed blue light or right-handed blue light) are absorbed by the light-blocking unit 17 above the third filter unit 143, second filter unit 142 and first cholesteric liquid crystal layer 111, respectively, so that, for example, no light can pass through the light-blocking unit 17 to be displayed by the upper area.

[0056] In addition, when (ambient) light is incident from above the second area PB (near the light-blocking unit 17), the blue light B (left-handed and right-handed light), green light G (left-handed and right-handed light) and red light R (left-handed and right-handed light) are absorbed by the light-blocking unit 17, for example, so that the light incident from above the second area PB cannot pass through the light-blocking unit 17 to be displayed by the lower area.

[0057] Therefore, in the present embodiment, the user can view the image presented by the second area PB from the lower area of the electronic device 10c, but the second area PB does not display the image toward the upper area of the electronic device 10c.

[0058] It is noted that the present embodiment (the third embodiment) applies the features of the light shielding unit 17 replacing part of the third filter unit 143 and part of the first filter unit 141 to the aforementioned first embodiment, and of course the features can also be applied to the aforementioned second embodiment, and the present application is not limited thereto.

[0059] Figure 4A A partial cross-sectional schematic view of an electronic device 10d of a fourth embodiment of the present application is shown.

[0060] As Figure 4A The component configuration and connection relationship of the electronic device 10d are substantially the same as those of the electronic device 10 of the aforementioned embodiments, and the difference is that, as Figure 4A shown in FIG. 18, at least one of the plurality of first filter units 141, the plurality of second filter units 142, and the plurality of third filter units 143 includes a solar cell, wherein the solar cell can be, for example but not limited to, a perovskite solar cell or a dye-sensitized solar cell. For example, in the present embodiment, the first filter unit 141 is a filter unit that absorbs blue light, the second filter unit 142 is a filter unit that absorbs green light, and the third filter unit 143 is a filter unit that absorbs red light, therefore, the material of the first filter unit 141 can be a perovskite solar cell or a dye-sensitized solar cell that absorbs blue light wavelengths, the material of the second filter unit 142 can be a perovskite solar cell or a dye-sensitized solar cell that absorbs green light wavelengths, and the material of the third filter unit 143 can be a perovskite solar cell or a dye-sensitized solar cell that absorbs red light wavelengths, but not limited thereto.

[0061] In an embodiment, taking a perovskite solar cell as an example, the perovskite solar cell is a solar cell with a perovskite layer as a light-absorbing layer (also known as an active layer). Because the perovskite material has good absorption of visible light and a wide light-absorbing range, a small amount of material can produce a high short-circuit current, and the battery assembly also has a high open-circuit voltage. Therefore, the perovskite solar cell has excellent power conversion efficiency (PCE). Generally, the molecular formula of the perovskite is ABX3crystal material. In the perovskite crystal structure, A is a larger cation, B is a smaller cation, and X is an anion. Each A ion is surrounded by an octahedron composed of B ions and X ions. The A ion occupies the face center position of the cubic lattice, which can be, for example but not limited to, methylammonium (MA), ethylammonium (EA), formamidinium (FA), Cs, Rb, etc. The B ion occupies the center position of the cubic lattice, which can be, for example but not limited to, Pb, Sn, etc. The X ion occupies the corner position of the cubic lattice, which can be, for example but not limited to, halogen or oxygen atoms such as Cl, Br, I, etc. It should be noted that these perovskite materials have characteristics such as adjustable band gap width, high extinction coefficient, and good optical rotatory property. In the present embodiment, the adjustable band gap width of the perovskite material is used to adjust the wavelength (waveband) of light absorption by selecting elements A, B, and X, so that the first filter unit 141 can absorb blue light and convert it into electrical energy, the second filter unit 142 can absorb green light and convert it into electrical energy, and the third filter unit 143 can absorb red light and convert it into electrical energy. It should be noted that the above description is only an example and is not intended to limit the scope of the present application. The present application is not limited thereto.

[0062] As mentioned above, when the filter unit includes a solar cell (such as a perovskite solar cell), its structure can be as shown in FIGS. Figure 4B or 4C, but is not limited thereto. As shown in FIGS. Figure 4BAs shown, the filter unit can include a conductive layer 14a, an electron transport layer 14b, a light absorbing layer 14c, a hole transport layer 14d, and a conductive layer 14e. This structure can be referred to as a planar formal n-i-p structure. The conductive layer 14a can be a transparent conductive layer, such as a transparent conductive substrate, for example but not limited to an ITO substrate, an FTO, or other transparent conductive substrate. The electron transport layer 14b is disposed on the conductive layer 14a, and can be made of, for example but not limited to, cesium carbonate (Cs2CO3), titanium dioxide (TiO2), zinc oxide (ZnO), PFN, zirconium oxide (ZrO), or other material suitable for transporting electrons in this architecture. The light absorbing layer 14c is disposed on the electron transport layer 14b, and can be made of, for example, the perovskite material described above. The hole transport layer 14d is disposed on the light absorbing layer 14c, and can be made of, for example but not limited to, vanadium pentoxide (V2O5), Spiro-OMeTAD, nickel oxide (NiO), tungsten trioxide (WO3), molybdenum trioxide (MoO3), or other material suitable for transporting holes in this architecture. The conductive layer 14e is disposed on the hole transport layer 14d, and can be made of, for example, a transparent conductive layer, but is not limited thereto.

[0063] In addition, as shown in FIG. 1C, the filter unit can include a conductive layer 14a, a hole transport layer 14d, a light absorbing layer 14c, an electron transport layer 14b, and a conductive layer 14e. This structure can be referred to as a planar reverse formal p-i-n structure. Figure 4C

[0064] In addition, as shown in FIG. 1C, the filter unit can include a conductive layer 14a, a hole transport layer 14d, a light absorbing layer 14c, an electron transport layer 14b, and a conductive layer 14e. This structure can be referred to as a planar reverse formal p-i-n structure. Figure 4A In addition, the electronic device 10d can further include an energy storage unit 18 electrically connected to the first filter unit 141, the second filter unit 142, and / or the third filter unit 143, for storing electrical energy generated by the first filter unit 141, the second filter unit 142, and / or the third filter unit 143. In addition, the electronic device 10d can further include one or more drive circuit units 19 (e.g., including signal conversion circuitry) electrically connected to the first panel 11, the second panel 12, and the third panel 13, for driving the first panel 11, the second panel 12, and the third panel 13 to actuate. In this embodiment, the drive circuit unit 19 can be electrically connected to the energy storage unit 18, so that the energy storage unit 18 provides electrical energy required by the drive circuit unit 19 to drive the first panel 11, the second panel 12, and / or the third panel 13. Thus, the electronic device 10d of this embodiment can simultaneously store electrical energy in the display state.

[0065] It should be noted that the features of the filter unit including a solar cell in this embodiment (fourth embodiment) can be applied to the first embodiment described above, and of course can also be applied to any of the embodiments described above, such as the second embodiment or the third embodiment, and the present application is not limited thereto.​

[0066] In summary, the electronic device of the present embodiment has a plurality of pixel regions, and the plurality of pixel regions are divided into first regions and second regions. The electronic device includes a first panel, a second panel, a plurality of first filter units, and a plurality of second filter units. The first panel includes a first cholesteric liquid crystal layer for reflecting first color light. The second panel is disposed on one side of the first panel and includes a second cholesteric liquid crystal layer for reflecting second color light. The plurality of first filter units and the plurality of second filter units are disposed between the first cholesteric liquid crystal layer and the second cholesteric liquid crystal layer. The plurality of first filter units are respectively located in the plurality of first regions, and the plurality of second filter units are respectively located in the plurality of second regions. The plurality of first filter units and the plurality of second filter units are used to absorb color light of different colors. Through the above structural design, the first regions of the electronic device can display images toward the upper regions, and the second regions can display images toward the lower regions. That is, a user can view the images presented by the first regions from the upper regions of the electronic device, but the second regions do not display images toward the upper regions of the electronic device. In addition, the user can view the images presented by the second regions from the lower regions of the electronic device, but the first regions do not display images toward the lower regions of the electronic device. Thus, the effect of double-sided display can be achieved, and the upper regions and the lower regions of the electronic device can display different image contents.

[0067] The above description is only exemplary and is not intended to be limiting. Any equivalent modifications or variations made to the present application without departing from the spirit and scope of the present application should be included in the scope of the appended claims.

Claims

1. An electronic device having a plurality of pixel regions, the plurality of pixel regions being divided into a plurality of first regions and a plurality of second regions, comprising: a first panel including a first cholesteric liquid crystal layer for reflecting a first color light; a second panel disposed on a side of the first panel and including a second cholesteric liquid crystal layer for reflecting a second color light; and a plurality of first filter units and a plurality of second filter units disposed between the first cholesteric liquid crystal layer and the second cholesteric liquid crystal layer; wherein the plurality of first filter units are respectively located in the plurality of first regions, the plurality of second filter units are respectively located in the plurality of second regions, and the plurality of first filter units and the plurality of second filter units are for absorbing different colors of color light. Further comprising: 2.The electronic device of claim 1, wherein, a third panel disposed on a side of the second panel distal from the first panel and including a third cholesteric liquid crystal layer for reflecting a third color light; and another plurality of second filter units and a plurality of third filter units disposed between the second cholesteric liquid crystal layer and the third cholesteric liquid crystal layer; wherein the another plurality of second filter units are respectively located in the plurality of first regions, the plurality of third filter units are respectively located in the plurality of second regions, and the another plurality of second filter units, the plurality of third filter units, and the plurality of first filter units are for absorbing different colors of color light. Further comprising: another plurality of third filter units disposed on a side of the third cholesteric liquid crystal layer distal from the second cholesteric liquid crystal layer and respectively located in the plurality of first regions; and 3.The electronic device of claim 2, wherein, a plurality of light-transmitting units disposed on the side of the third cholesteric liquid crystal layer distal from the second cholesteric liquid crystal layer and respectively located in the plurality of second regions. Further comprising: a plurality of light-blocking units disposed on a side of the third cholesteric liquid crystal layer distal from the second cholesteric liquid crystal layer and respectively located in the plurality of first regions; and a plurality of light-transmitting units disposed on the side of the third cholesteric liquid crystal layer distal from the second cholesteric liquid crystal layer and respectively located in the plurality of second regions. 4.The electronic device of claim 2, wherein, Further comprising: another plurality of first filter units disposed on a side of the first cholesteric liquid crystal layer distal from the second cholesteric liquid crystal layer and respectively located in the plurality of second regions; and a plurality of light-transmitting units disposed on the side of the first cholesteric liquid crystal layer distal from the second cholesteric liquid crystal layer and respectively located in the plurality of first regions. Further comprising: 5.The electronic device of claim 1, wherein, a plurality of light-blocking units disposed on a side of the first cholesteric liquid crystal layer distal from the second cholesteric liquid crystal layer and respectively located in the plurality of second regions; and a plurality of light-transmitting units disposed on the side of the first cholesteric liquid crystal layer distal from the second cholesteric liquid crystal layer and respectively located in the plurality of first regions. Further comprising: a plurality of light-blocking components disposed between the first cholesteric liquid crystal layer and the second cholesteric liquid crystal layer, wherein one of the plurality of light-blocking components overlaps a boundary between one of the plurality of first filter units and one of the plurality of second filter units adjacent thereto in a direction of viewing the electronic device. 6.The electronic device of claim 1, wherein, The plurality of first filter units and the plurality of second filter units comprise a solar cell. The solar cell is a perovskite solar cell or a dye-sensitized solar cell. ​ ​ 7.The electronic device of claim 1, wherein, ​ ​ 8.The electronic device of claim 1, wherein, ​ 9.The electronic device of claim 8, wherein, ​ 10.The electronic device of claim 8, wherein, Further comprising an energy storage unit electrically connected to the first and second filter units.

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