Electronic device

Abstract

The electronic device comprises a first substrate, a circuit layer, a plurality of electronic units and a circular polarizer. The first substrate has a first surface. The circuit layer is disposed on the first surface. The plurality of electronic units are arranged on the first surface and electrically connected with the circuit layer. The circular polarizer includes a phase retardation film and a linear polarization film disposed on the phase retardation film, and the linear polarization film includes a functional region and a redundancy region. In the normal direction of the first surface, the redundant region overlaps the plurality of electronic units, and the functional region overlaps the region, not covered by the plurality of electronic units, of the first substrate. The electronic device provided by the invention can improve the luminous efficiency.

Description

Technical Field

[0001] This disclosure relates to an electronic device, and more particularly to a display device. Background Technology

[0002] To reduce light reflection from circuit layers in electronic devices, existing technology involves attaching circular polarizers to the outer surface of the device's substrate to lower light reflectivity. However, the placement of these circular polarizers affects the light emitted by the electronic units within the device, resulting in relatively poor light extraction efficiency in existing electronic devices. Summary of the Invention

[0003] Some embodiments disclosed herein are directed to an electronic device that can improve light extraction efficiency.

[0004] An electronic device according to some embodiments of the present disclosure includes a first substrate, a circuit layer, a plurality of electronic units, and a circular polarizer. The first substrate has a first surface. The circuit layer is disposed on the first surface. The plurality of electronic units are disposed on the first surface and electrically connected to the circuit layer. The circular polarizer includes a phase retardation film and a linear polarizing film disposed on the phase retardation film, and the linear polarizing film includes a functional region and a redundant region. In the normal direction of the first surface, the redundant region overlaps the plurality of electronic units, and the functional region overlaps an area of ​​the first substrate not covered by the plurality of electronic units.

[0005] Based on this, the linear polarizing film in the circular polarizer of the electronic device disclosed herein has a functional region and a redundant region, wherein the functional region overlaps with a region not covered by multiple electronic units, and the redundant region overlaps with multiple electronic units. Through the aforementioned arrangement of the circular polarizer, the functional region does not overlap with multiple electronic units; therefore, the light extraction efficiency of the electronic device disclosed herein can be improved, and the reflection of light by the circuit layer can be reduced.

[0006] To make the above-mentioned features and advantages disclosed herein more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings. Attached Figure Description

[0007] Figure 1 This is a schematic flowchart of the manufacturing method of the circular polarizer according to the first embodiment of this disclosure;

[0008] Figure 2 This is a schematic flowchart of the manufacturing method of the circular polarizer according to the second embodiment of this disclosure;

[0009] Figure 3 This is a schematic flowchart of a method for manufacturing a circular polarizer according to the third embodiment of this disclosure;

[0010] Figure 4 This is a schematic flowchart of the manufacturing method of the circular polarizer according to the fourth embodiment of this disclosure;

[0011] Figure 5 This is a schematic flowchart of the manufacturing method of the circular polarizer according to the fifth embodiment of this disclosure;

[0012] Figure 6A This is a partial cross-sectional schematic diagram of the electronic device according to the first embodiment of this disclosure;

[0013] Figure 6B This is a partial cross-sectional schematic diagram of the electronic device according to the second embodiment of the present disclosure;

[0014] Figure 6C This is a partial cross-sectional schematic diagram of the electronic device according to the third embodiment of this disclosure;

[0015] Figure 6D This is a partial cross-sectional schematic diagram of the electronic device according to the fourth embodiment of this disclosure;

[0016] Figure 6E This is a partial cross-sectional schematic diagram of the electronic device according to the fifth embodiment of this disclosure;

[0017] Figure 7A This is a partial cross-sectional schematic diagram of the electronic device according to the sixth embodiment of this disclosure;

[0018] Figure 7B This is a partial cross-sectional schematic diagram of the electronic device according to the seventh embodiment of this disclosure;

[0019] Figure 7C This is a partial cross-sectional schematic diagram of the electronic device according to the eighth embodiment of this disclosure;

[0020] Figure 8A This is a partial cross-sectional schematic diagram of the electronic device according to the ninth embodiment of this disclosure;

[0021] Figure 8B This is a partial cross-sectional schematic diagram of the electronic device according to the tenth embodiment of this disclosure;

[0022] Figure 8C This is a partial cross-sectional schematic diagram of the electronic device according to the eleventh embodiment of this disclosure;

[0023] Figure 8D This is a partial cross-sectional schematic diagram of the electronic device according to the twelfth embodiment of this disclosure. Detailed Implementation

[0024] Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same element references are used in the drawings and description to denote the same or similar parts.

[0025] This disclosure can be understood by referring to the following detailed description in conjunction with the accompanying drawings. It should be noted that, for ease of understanding and for the sake of brevity, many of the drawings in this disclosure depict only a portion of the electronic device, and certain components in the drawings are not drawn to scale. Furthermore, the number and dimensions of the components in the drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure.

[0026] Throughout this disclosure and in the appended claims, certain terms are used to refer to specific elements. Those skilled in the art will understand that electronic device manufacturers may use different names to refer to the same element. This document is not intended to distinguish between elements that have the same function but different names. In the following description and claims, words such as “comprising,” “containing,” and “having” are open-ended terms and should therefore be interpreted as “containing but not limited to…”. Thus, when the terms “comprising,” “containing,” and / or “having” are used in the description of this disclosure, they specify the presence of the corresponding feature, area, step, operation, and / or component, but do not exclude the presence of one or more of the corresponding feature, area, step, operation, and / or component.

[0027] The directional terms used herein, such as "up," "down," "front," "back," "left," and "right," are for reference only when referring to the accompanying drawings. Therefore, the directional terms used are illustrative and not intended to limit this disclosure. In the accompanying drawings, each figure illustrates general features of the methods, structures, and / or materials used in specific embodiments. However, these figures should not be construed as defining or limiting the scope or nature covered by these embodiments. For example, for clarity, the relative dimensions, thicknesses, and locations of various films, regions, and / or structures may be reduced or enlarged.

[0028] When a component (e.g., a membrane or region) is referred to as "on another component," it can be directly on that component, or there may be other components between them. Conversely, when a component is referred to as "directly on another component," there are no components between them unless otherwise specified in the specification. Furthermore, when a component is referred to as "on another component," the two components are vertically related in the planar view, and this component can be above or below the other component, depending on the orientation of the device.

[0029] The terms “equal to” or “same as”, “substantially” or “approximately” are generally interpreted as being within 20% of a given value or range, or as being within 10%, 5%, 3%, 2%, 1% or 0.5% of a given value or range.

[0030] The ordinal numbers used in the specification and claims, such as "first," "second," etc., to modify elements, do not in themselves imply or represent any prior ordinal number of that element (or those elements), nor do they represent the order of one element with another, or the order of manufacturing processes. The use of these ordinal numbers is solely to clearly distinguish one named element from another element with the same name. The claims and specification may not use the same terminology; therefore, a first element in the specification may be a second element in the claims.

[0031] It should be understood that the features in the following embodiments can be replaced, recombined, or mixed to complete other embodiments without departing from the spirit of this disclosure. Features between embodiments can be arbitrarily mixed and combined as long as they do not violate the spirit of the invention or conflict with it.

[0032] The electrical connection or connection described in this disclosure can refer to a direct connection or an indirect connection. In the case of a direct connection, the endpoints of the two circuit components are directly connected or connected to each other by a conductor segment. In the case of an indirect connection, there is a switch, diode, capacitor, inductor, other suitable component, or combination of the above components between the endpoints of the two circuit components, but not limited to these.

[0033] In this disclosure, the thickness, length, width, and area can be measured using an optical microscope, and the thickness can be measured from a cross-sectional image using an electron microscope, but these methods are not limited to these. Furthermore, any two values ​​or directions used for comparison may have a certain degree of error. If the first value equals the second value, it implies an error of approximately 10% between the two values; if the first direction is perpendicular to the second direction, the angle between the first and second directions may be between 80 and 100 degrees; if the first direction is parallel to the second direction, the angle between the first and second directions may be between 0 and 10 degrees.

[0034] The electronic devices disclosed herein can be applied to display devices, light-emitting devices, backlight devices, antenna devices, sensing devices, or splicing devices, or as temporary storage substrates for arranging electronic units at specific intervals, but are not limited thereto. The electronic devices can be bendable or flexible. The display devices can be non-self-emissive or self-emissive. The antenna devices can be liquid crystal type or non-liquid crystal type antenna devices, and the sensing devices can be sensing capacitance, light, heat, or ultrasound, but are not limited thereto. The electronic devices can include passive and active electronic units, such as capacitors, resistors, inductors, diodes, and transistors. Diodes can include light-emitting diodes or photodiodes. Light-emitting diodes (LEDs) can include, for example, organic light-emitting diodes (OLEDs), mini LEDs, micro LEDs, or quantum dot LEDs, but are not limited thereto. Splicing devices can be, for example, display splicing devices or antenna splicing devices, but are not limited thereto. It should be noted that the electronic device can be any of the aforementioned arrangements and combinations, but is not limited thereto. Furthermore, the electronic device can be rectangular, circular, polygonal, have curved edges, or other suitable shapes.

[0035] Figure 1 This is a schematic flowchart of the manufacturing method of the circular polarizer according to the first embodiment of this disclosure.

[0036] Please refer to Figure 1 In this embodiment, the circular polarizer 100 can be formed by performing the following steps, but this disclosure is not limited thereto.

[0037] Step (1): Form multiple patterned transparent patterns TP on substrate SB1.

[0038] In some embodiments, multiple patterned transparent patterns TP can be formed on substrate SB1 by photolithography, nanoimprinting or other suitable processes, but this disclosure is not limited thereto.

[0039] The substrate SB1 may be made of, for example, glass, plastic, or a combination thereof. For instance, the substrate SB1 may be made of quartz, sapphire, silicon (Si), germanium (Ge), silicon carbide (SiC), gallium nitride (GaN), silicon-germanium (SiGe), polymethyl methacrylate (PMMA), polycarbonate (PC), polyimide (PI), polyethylene terephthalate (PET), or other suitable materials or combinations thereof. In this embodiment, the substrate SB1 is made of glass, but this disclosure is not limited thereto. The plurality of patterned transparent patterns TP may be made of, for example, organic or inorganic materials. In this embodiment, the difference between the refractive index of the plurality of patterned transparent patterns TP and the refractive index of the substrate SB1 is less than 1, to reduce the possibility of light being reflected at the interface between the patterned transparent patterns TP and the substrate SB1. In addition, in this embodiment, the surfaces of the plurality of patterned transparent patterns TP have relatively poor adhesion to the lyotropic liquid crystals, which will be described in detail in the following embodiments.

[0040] Step (2): Form a circular polarizer 100 on substrate SB1.

[0041] In this embodiment, the circular polarizer 100 includes a linear polarizing film 110, an intermediate layer 120, and a phase retardation film 130 stacked on top of each other. In some embodiments, the method of forming the circular polarizer 100 includes the following steps, but this disclosure is not limited thereto.

[0042] Step (2-1): Form a linear polarization film 110 on substrate SB1.

[0043] In this embodiment, the material of the linear polarizing film 110 includes lyotropic liquid crystal LL and dichroic dye. In some embodiments, the method of forming the linear polarizing film 110 includes the following steps, but this disclosure is not limited thereto.

[0044] Step (2-1-1): Form lyotropic liquid crystal LL on substrate SB1.

[0045] First, a lyotropic liquid crystal composition can be formed on the substrate SB1 by a coating process. The lyotropic liquid crystal composition includes, for example, lyotropic liquid crystal LL and a solvent. As described in the above embodiment, since there is relatively poor adhesion between the surfaces of the multiple patterned transparent patterns TP and the lyotropic liquid crystal LL, the lyotropic liquid crystal LL in the lyotropic liquid crystal composition will concentrate in the openings between adjacent patterned transparent patterns TP, while the solvent in the lyotropic liquid crystal composition can be formed on the surfaces and in the openings of the multiple patterned transparent patterns TP.

[0046] Next, the solvent in the lyotropic liquid crystal composition can be removed by performing a suitable drying process, thereby forming the lyotropic liquid crystal LL in the opening between adjacent patterned transparent patterns TP.

[0047] Step (2-1-2): Stain the lyotropic liquid crystal LL.

[0048] In some embodiments, the linear polarizing film 110 can be formed by dyeing the lyotropic liquid crystal LL using a suitable dyeing process. The dichroic dyes used in the dyeing process described above may include suitable organic materials, and this disclosure is not limited thereto.

[0049] Thus, the fabrication of the linear polarizing film 110 is complete. Although the method for manufacturing the linear polarizing film 110 in this embodiment is described using the above method as an example, the method disclosed herein is not limited to this. In this embodiment, the linear polarizing film 110 may include a functional region R1 and a redundant region R2. Specifically, the functional region R1 is defined as the area where the linear polarizing film 110 is disposed, and the redundant region R2 is defined as the opening OP of the linear polarizing film 110.

[0050] Step (2-2): Form an intermediate layer 120 on the linear polarizing film 110.

[0051] In some embodiments, the intermediate layer 120 can be formed in the opening by performing a suitable patterning process, thereby stacking the intermediate layer 120 on the linear polarizing film 110, but this disclosure is not limited thereto. The material of the intermediate layer 120 may be, for example, an organic material or an inorganic material. In this embodiment, the difference between the refractive index of the intermediate layer 120 and the refractive index of the linear polarizing film 110 is less than 1, so as to reduce the possibility of light being reflected by the interface between the intermediate layer 120 and the linear polarizing film 110.

[0052] Step (2-3): Form a phase retardation film 130 on the intermediate layer 120.

[0053] In some embodiments, the method for forming the phase retardation film 130 may be similar to the method for forming the lyotropic liquid crystal LL in step (2-1). Specifically, a coating process can be performed to form a lyotropic liquid crystal composition on the substrate SB1. Due to the relatively poor adhesion between the surface of the patterned transparent pattern TP and the lyotropic liquid crystal, the lyotropic liquid crystal in the lyotropic liquid crystal composition concentrates in the openings between adjacent patterned transparent patterns TP. Subsequently, the solvent in the lyotropic liquid crystal composition is removed by a suitable drying process, thereby forming the phase retardation film 130 located in the openings between adjacent patterned transparent patterns TP, wherein the phase retardation film 130 is stacked on the intermediate layer 120. In this embodiment, the difference between the refractive index of the phase retardation film 130 and the refractive index of the intermediate layer 120 is less than 1 to reduce the possibility of light being reflected at the interface between the phase retardation film 130 and the intermediate layer 120.

[0054] Thus, the fabrication of the circular polarizer 100 is complete. Although the manufacturing method of the circular polarizer 100 in this embodiment is described using the above method as an example, the manufacturing method of the circular polarizer disclosed herein is not limited thereto.

[0055] Figure 2 This is a schematic flowchart illustrating the manufacturing method of the circular polarizer according to the second embodiment of this disclosure. It should be noted that... Figure 2 The embodiments can be used Figure 1 The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0056] Please refer to Figure 2 In this embodiment, the circular polarizer 100 can be formed by performing the following steps, but this disclosure is not limited thereto.

[0057] Step (1a): Form multiple patterned photoresist PRs on substrate SB1.

[0058] In some embodiments, a plurality of patterned photoresist PRs can be formed on substrate SB1 by performing an exposure and development process, but this disclosure is not limited thereto. The material of the plurality of patterned photoresist PRs can be, for example, a suitable organic material, and this disclosure is not limited thereto.

[0059] The remaining description of the substrate SB1 can be found in the above embodiments and will not be repeated here.

[0060] Step (2a): Form a circular polarizer 100 on substrate SB1.

[0061] In this embodiment, the circular polarizer 100 includes a linear polarizing film 110, an intermediate layer 120, and a phase retardation film 130 stacked on top of each other. In some embodiments, the method of forming the circular polarizer 100 includes the following steps, but this disclosure is not limited thereto.

[0062] Step (2-1a): Form a linear polarization film 110a on substrate SB1.

[0063] In this embodiment, the material of the linear polarizing film 110a includes lyotropic liquid crystal LL and dichroic dye. In some embodiments, the method for forming the linear polarizing film 110a includes the following steps, but this disclosure is not limited thereto.

[0064] Step (2-1-1a): Form lyotropic liquid crystal LL on substrate SB1.

[0065] First, a lyotropic liquid crystal composition can be formed on a substrate SB1 by a coating process, wherein the lyotropic liquid crystal composition covers multiple patterned photoresist PRs. The lyotropic liquid crystal composition includes, for example, lyotropic liquid crystal LL and a solvent.

[0066] Next, the solvent in the lyotropic liquid crystal composition can be removed by performing a suitable drying process, thereby forming a lyotropic liquid crystal LL.

[0067] Step (2-1-2a): Stain the lyotropic liquid crystal LL.

[0068] In some embodiments, a linear polarizing film 110a can be formed by dyeing a lyotropic liquid crystal LL using a suitable dyeing process, wherein the linear polarizing film 110a covers a plurality of patterned photoresist PRs. The dichroic dyes used in the dyeing process described above may include suitable organic materials, and this disclosure is not limited thereto.

[0069] Thus, the fabrication of the linear polarizing film 110a is complete. Although the manufacturing method of the linear polarizing film 110a in this embodiment is described using the above method as an example, the manufacturing method of the linear polarizing film disclosed herein is not limited thereto.

[0070] Step (2-2a): Form an intermediate layer 120a on the linear polarizing film 110a.

[0071] In some embodiments, the intermediate layer 120a may be formed on the linear polarizing film 110a by a deposition process, a coating process, or other suitable processes, but this disclosure is not limited thereto. The material of the intermediate layer 120a may be, for example, an organic material or an inorganic material. In this embodiment, the difference between the refractive index of the intermediate layer 120a and the refractive index of the linear polarizing film 110a is less than 1, so as to reduce the possibility of light being reflected by the interface between the intermediate layer 120a and the linear polarizing film 110a.

[0072] Step (2-3a): Form a phase retardation film 130a on the intermediate layer 120a.

[0073] In some embodiments, the method for forming the phase retardation film 130a may be similar to the method for forming the lyotropic liquid crystal LL in step (2-1a). Specifically, a coating process can be performed to form a lyotropic liquid crystal composition on the substrate SB1. Subsequently, a suitable drying process is performed to remove the solvent from the lyotropic liquid crystal composition, thereby forming the phase retardation film 130a stacked on the intermediate layer 120a. In this embodiment, the difference between the refractive index of the phase retardation film 130a and the refractive index of the intermediate layer 120a is less than 1, so as to reduce the possibility of light being reflected by the interface between the phase retardation film 130a and the intermediate layer 120a.

[0074] Step (2-4a): Remove multiple patterned photoresist PRs.

[0075] In some embodiments, the multiple patterned photoresists PR can be separated from the substrate SB1 by performing a suitable stripping process to remove the multiple patterned photoresists PR, but this disclosure is not limited thereto. It is worth noting that the linear polarizing film 110a, the intermediate layer 120a, and the phase retardation film 130a located above the multiple patterned photoresists PR (on the surface of the multiple patterned photoresists PR away from the substrate SB1) are also removed together with the multiple patterned photoresists PR in this step. Based on this, a portion of the linear polarizing film 110a, the intermediate layer 120a, and the phase retardation film 130a are removed in this step to form the linear polarizing film 110, the intermediate layer 120, and the phase retardation film 130, respectively.

[0076] Thus, the fabrication of the circular polarizer 100 is complete. Although the manufacturing method of the circular polarizer 100 in this embodiment is described using the above method as an example, the manufacturing method of the circular polarizer disclosed herein is not limited thereto.

[0077] Figure 3 This is a schematic flowchart illustrating the manufacturing method of the circular polarizer according to the third embodiment of this disclosure. It should be noted that... Figure 3 The embodiments can be used Figure 1 The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0078] Please refer to Figure 3 In this embodiment, the circular polarizer 100 can be formed by performing the following steps, but this disclosure is not limited thereto.

[0079] Step (2b): Form a circular polarizer 100 on substrate SB1.

[0080] In this embodiment, the circular polarizer 100 includes a linear polarizing film 110, an intermediate layer 120, and a phase retardation film 130 stacked on top of each other. In some embodiments, the method of forming the circular polarizer 100 includes the following steps, but this disclosure is not limited thereto.

[0081] Step (2-1b): Form a linear polarizing film 110b on the substrate SB1.

[0082] In this embodiment, the material of the linear polarizing film 110b includes lyotropic liquid crystal LL and dichroic dye. In some embodiments, the method for forming the linear polarizing film 110b includes the following steps, but this disclosure is not limited thereto.

[0083] Step (2-1-1b): Form lyotropic liquid crystal LL on substrate SB1.

[0084] First, a lyotropic liquid crystal composition can be formed on the substrate SB1 by a coating process. The lyotropic liquid crystal composition includes, for example, lyotropic liquid crystal LL and a solvent.

[0085] Next, the solvent in the lyotropic liquid crystal composition can be removed by performing a suitable drying process, thereby forming a lyotropic liquid crystal LL.

[0086] Step (2-1-2b): Stain the lyotropic liquid crystal LL.

[0087] In some embodiments, a linearly polarized film 110b can be formed by dyeing the lyotropic liquid crystal LL using a suitable dyeing process. The dichroic dye used in the dyeing process described above may include suitable organic materials, and this disclosure is not limited thereto.

[0088] Thus, the fabrication of the linear polarizing film 110b is complete. Although the manufacturing method of the linear polarizing film 110b in this embodiment is described using the above method as an example, the manufacturing method of the linear polarizing film disclosed herein is not limited thereto.

[0089] Step (2-2b): Form an intermediate layer 120b on the linear polarizing film 110a.

[0090] In some embodiments, the intermediate layer 120b can be formed on the linear polarizing film 110b by deposition, coating, or other suitable processes, but this disclosure is not limited thereto. The material of the intermediate layer 120b can be, for example, an organic or inorganic material. In this embodiment, the difference between the refractive index of the intermediate layer 120b and the refractive index of the linear polarizing film 110b is less than 1, so as to reduce the possibility of light being reflected by the interface between the intermediate layer 120b and the linear polarizing film 110b.

[0091] Step (2-3b): Form a phase retardation film 130b on the intermediate layer 120b.

[0092] In some embodiments, the method for forming the phase retardation film 130b may be similar to the method for forming the lyotropic liquid crystal LL in step (2-1b). Specifically, a coating process can be performed to form a lyotropic liquid crystal composition on the substrate SB1. Subsequently, a suitable drying process is performed to remove the solvent from the lyotropic liquid crystal composition, thereby forming the phase retardation film 130b stacked on the intermediate layer 120b. In this embodiment, the difference between the refractive index of the phase retardation film 130b and the refractive index of the intermediate layer 120b is less than 1, so as to reduce the possibility of light being reflected by the interface between the phase retardation film 130b and the intermediate layer 120b.

[0093] Step (2-4b): Remove a portion of the linear polarization film 110b, the intermediate layer 120b, and the phase retardation film 130b.

[0094] In some embodiments, a portion of the linear polarizing film 110b, the intermediate layer 120b, and the phase retardation film 130b can be removed by performing a suitable patterning process. For example, a laser etching process can be used to remove a portion of the linear polarizing film 110b, the intermediate layer 120b, and the phase retardation film 130b, but this disclosure is not limited thereto. Based on this, a portion of the linear polarizing film 110b, the intermediate layer 120b, and the phase retardation film 130b are removed in this step to form the linear polarizing film 110, the intermediate layer 120, and the phase retardation film 130, respectively.

[0095] Thus, the fabrication of the circular polarizer 100 is complete. Although the manufacturing method of the circular polarizer 100 in this embodiment is described using the above method as an example, the manufacturing method of the circular polarizer disclosed herein is not limited thereto.

[0096] Figure 4 This is a schematic flowchart illustrating the manufacturing method of the circular polarizer according to the fourth embodiment of this disclosure. It should be noted that... Figure 4 The embodiments can be used Figure 1 The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0097] Please refer to Figure 4 In this embodiment, the circular polarizer 100' can be formed by performing the following steps, but this disclosure is not limited thereto.

[0098] Step (2c): Form a circular polarizer 100' on substrate SB1.

[0099] In this embodiment, the circular polarizer 100' includes a linear polarizing film 110', an intermediate layer 120', and a phase retardation film 130' stacked on top of each other. In some embodiments, the method of forming the circular polarizer 100' includes the following steps, but this disclosure is not limited thereto.

[0100] Step (2-1c): Form a linear polarizing film 110' on the substrate SB1.

[0101] In this embodiment, the material of the linear polarizing film 110' includes lyotropic liquid crystal LL and dichroic dye. In some embodiments, the method for forming the linear polarizing film 110' includes the following steps, but this disclosure is not limited thereto.

[0102] Step (2-1-1c): Form lyotropic liquid crystal LL on substrate SB1.

[0103] First, a lyotropic liquid crystal composition can be formed on the substrate SB1 by a coating process. The lyotropic liquid crystal composition includes, for example, lyotropic liquid crystal LL and a solvent.

[0104] Next, the solvent in the lyotropic liquid crystal composition can be removed by performing a suitable drying process, thereby forming a lyotropic liquid crystal LL.

[0105] Step (2-1-2c): Form multiple patterned photoresist PRs on the lyotropic liquid crystal LL.

[0106] In some embodiments, a plurality of patterned photoresists PR can be formed on the surface of the lyotropic liquid crystal LL away from the substrate SB1 by performing an exposure and development process, but this disclosure is not limited thereto. The material of the plurality of patterned photoresists PR can be, for example, a suitable organic material, and this disclosure is not limited thereto.

[0107] Step (2-1-3c): Stain the lyotropic liquid crystal LL exposed by multiple patterned photoresist PRs.

[0108] In some embodiments, a linear polarizing film 110' can be formed by dyeing a lyotropic liquid crystal LL with a plurality of patterned photoresists PR through a suitable dyeing process. The dichroic dyes used in the dyeing process described above may include suitable organic materials, and this disclosure is not limited thereto.

[0109] Based on this, in this embodiment, the linear polarizing film 110' includes an undyed region 112' and a dyed region 114', wherein the undyed region 112' overlaps with a plurality of patterned photoresists PR in the normal direction n of the substrate SB1, and the dyed region 114' is exposed by a plurality of patterned photoresists PR.

[0110] Thus, the fabrication of the linear polarizing film 110' is complete. Although the method for manufacturing the linear polarizing film 110' in this embodiment is described using the above method as an example, the method disclosed herein is not limited to this. In this embodiment, the linear polarizing film 110' may include a functional region R1 and a redundant region R2. Specifically, the functional region R1 is defined as the dyed region 114' in the linear polarizing film 110', and the redundant region R2 is defined as the undyed region 112' in the linear polarizing film 110'.

[0111] Step (2-2c): Form an intermediate layer 120' on the linear polarizing film 110'.

[0112] It is worth noting that before forming the intermediate layer 120' on the linear polarizing film 110', a plurality of patterned photoresist PRs are removed. In some embodiments, the intermediate layer 120' can be formed on the linear polarizing film 110' by a deposition process, a coating process, or other suitable processes, but this disclosure is not limited thereto. The material of the intermediate layer 120' can be, for example, an organic material or an inorganic material. In this embodiment, the difference between the refractive index of the intermediate layer 120' and the refractive index of the linear polarizing film 110' is less than 1, so as to reduce the possibility of light being reflected by the interface between the intermediate layer 120' and the linear polarizing film 110'.

[0113] Step (2-3c): Form a phase retardation film 130' on the intermediate layer 120'.

[0114] In some embodiments, the method for forming the phase retardation film 130' is similar to the method for forming the lyotropic liquid crystal LL in step (2-1-1c). Specifically, a coating process is performed to form a lyotropic liquid crystal composition on the substrate SB1. Then, a suitable drying process is performed to remove the solvent from the lyotropic liquid crystal composition, thereby forming the phase retardation film 130' stacked on the intermediate layer 120'. In this embodiment, the difference between the refractive index of the phase retardation film 130' and the refractive index of the intermediate layer 120' is less than 1, to reduce the possibility of light being reflected at the interface between the phase retardation film 130' and the intermediate layer 120'.

[0115] This completes the fabrication of the circular polarizer 100'. Although the manufacturing method of the circular polarizer 100' in this embodiment is described using the above method as an example, the manufacturing method of the circular polarizer disclosed herein is not limited thereto.

[0116] Figure 5 This is a schematic flowchart illustrating the fabrication method of the circular polarizer according to the fifth embodiment of this disclosure. It should be noted that... Figure 5 The embodiments can be used Figure 1The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0117] Please refer to Figure 5 In this embodiment, the circular polarizer 100 can be formed by performing the following steps, but this disclosure is not limited thereto.

[0118] Step (1d): Set multiple electronic units EU on substrate SB2.

[0119] In some embodiments, a plurality of electronic units EU can be disposed on the substrate SB2 by mass transfer, but this disclosure is not limited thereto. Any of the plurality of electronic units EU may, for example, emit various suitable colors of light (e.g., red, green, and blue) or UV light, but this disclosure is not limited thereto. In some embodiments, the plurality of electronic units EU may include self-emissive materials. For example, in this embodiment, the plurality of electronic units EU may be light-emitting diodes (LEDs), such as organic light-emitting diodes (LEDs), micro LEDs, mini LEDs, quantum dot (QD) LEDs, or combinations thereof, but this disclosure is not limited thereto. In some embodiments, the plurality of electronic units EU may include a red emitting unit EU1, a green emitting unit EU2, and a blue emitting unit EU3. That is, the red emitting unit EU1, the green emitting unit EU2, and the blue emitting unit EU3 may each emit red light, green light, and blue light, respectively. However, this disclosure is not limited thereto. In other embodiments, each of the plurality of electronic units EU may emit blue light or ultraviolet light. In this embodiment, the surfaces of the plurality of electronic units EU have relatively poor adhesion to the lyotropic liquid crystal, which will be detailed in the following embodiments. It is worth noting that, although in Figure 5 As not shown, a circuit layer is provided between the substrate SB2 and multiple electronic units EU, wherein the multiple electronic units EU are electrically connected to this circuit layer.

[0120] The substrate SB2 may be made of, for example, glass, plastic, or a combination thereof. For instance, the substrate SB2 may be made of quartz, sapphire, silicon (Si), germanium (Ge), silicon carbide (SiC), gallium nitride (GaN), silicon germanium (SiGe), polymethyl methacrylate (PMMA), polycarbonate (PC), polyimide (PI), polyethylene terephthalate (PET), or other suitable materials or combinations thereof. In this embodiment, the substrate SB2 is made of glass, but this disclosure is not limited thereto.

[0121] Step (2d): Form a circular polarizer 100 on substrate SB2.

[0122] In this embodiment, the circular polarizer 100 includes a phase retardation film 130, an intermediate layer 120, and a linear polarizing film 110 stacked on top of each other. In some embodiments, the method of forming the circular polarizer 100 includes the following steps, but this disclosure is not limited thereto.

[0123] Step (2-1d): Form a phase retardation film 130 on substrate SB2.

[0124] In some embodiments, a lyotropic liquid crystal composition can be formed on the substrate SB2 by a coating process. Due to the relatively poor adhesion between the surfaces of the multiple electronic units EU and the lyotropic liquid crystal, the lyotropic liquid crystal in the lyotropic liquid crystal composition concentrates in the openings between adjacent electronic units EU. Subsequently, the solvent in the lyotropic liquid crystal composition is removed by a suitable drying process, thereby forming a phase retardation film 130 located in the openings between adjacent electronic units EU.

[0125] Step (2-2d): Form an intermediate layer 120 on the phase retardation film 130.

[0126] In some embodiments, the intermediate layer 120 can be formed in the openings between adjacent electronic units EU by performing a suitable patterning process, thereby stacking the intermediate layer 120 on the phase retardation film 130, but this disclosure is not limited thereto. The material of the intermediate layer 120 can be, for example, an organic or inorganic material. In this embodiment, the difference between the refractive index of the intermediate layer 120 and the refractive index of the phase retardation film 130 is less than 1, so as to reduce the possibility of light being reflected by the interface between the intermediate layer 120 and the phase retardation film 130.

[0127] Step (2-3d): Form a linear polarizing film 110 on the intermediate layer 120.

[0128] In this embodiment, the material of the linear polarizing film 110 includes lyotropic liquid crystal LL and dichroic dye. In some embodiments, the method of forming the linear polarizing film 110 includes the following steps, but this disclosure is not limited thereto.

[0129] Step (2-3-1d): Form lyotropic liquid crystal LL on substrate SB2.

[0130] First, a lyotropic liquid crystal composition can be formed on substrate SB2 by a coating process. The lyotropic liquid crystal composition includes, for example, lyotropic liquid crystal LL and a solvent. As described in the above embodiment, since there is relatively poor adhesion between the surfaces of the multiple electronic units EU and the lyotropic liquid crystal LL, the lyotropic liquid crystal LL in the lyotropic liquid crystal composition will concentrate in the openings between adjacent electronic units EU, while the solvent in the lyotropic liquid crystal composition can be formed on the surfaces of the electronic units EU and in the openings.

[0131] Next, the solvent in the lyotropic liquid crystal composition can be removed by performing a suitable drying process, thereby forming lyotropic liquid crystal LL in the openings between multiple adjacent electronic units EU.

[0132] Step (2-3-2d): Stain lyotropic liquid crystals (LL).

[0133] In some embodiments, the linear polarizing film 110 can be formed by dyeing the lyotropic liquid crystal LL using a suitable dyeing process. The dichroic dye used in the dyeing process described above may include suitable organic materials, and this disclosure is not limited thereto. In this embodiment, the difference between the refractive index of the linear polarizing film 110 and the refractive index of the intermediate layer 120 is less than 1, so as to reduce the possibility of light being reflected by the interface between the linear polarizing film 110 and the intermediate layer 120.

[0134] Thus, the fabrication of the linear polarizing film 110 is complete. Although the method for manufacturing the linear polarizing film 110 in this embodiment is described using the above method as an example, the method for manufacturing the linear polarizing film disclosed herein is not limited thereto.

[0135] Thus, the fabrication of the circular polarizer 100 is complete. Although the manufacturing method of the circular polarizer 100 in this embodiment is described using the above method as an example, the manufacturing method of the circular polarizer disclosed herein is not limited thereto.

[0136] In the manufacturing method of the circular polarizer 100 or 100' provided in the above embodiments, a linear polarizing film 110 or 110' is formed by drying and dyeing a lyotropic liquid crystal composition. The lyotropic liquid crystal composition can be patterned before or after drying to form functional regions R1 and redundant regions R2; or the exposed areas of the lyotropic liquid crystal composition can be dyed using multiple patterned photoresists PR after drying to form functional regions R1 and redundant regions R2. Therefore, when the circular polarizer 100 or 100' provided in the above embodiments is applied to an electronic device, the electronic device can reduce the reflection of light by the circuit layer and improve its light extraction efficiency. A description of the electronic device will be provided in the following embodiments.

[0137] Figure 6A This is a partial cross-sectional schematic diagram of the electronic device according to the first embodiment of this disclosure. It should be noted that... Figure 6A The embodiments can be used Figure 1 The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0138] Please refer to Figure 6A In this embodiment, the electronic device 10a includes a substrate SB1, a plurality of patterned transparent patterns TP, a circular polarizer 100, a substrate SB2, a circuit layer CL, and a plurality of electronic units EU.

[0139] The substrate SB1, for example, has a first surface SB1_S1 and a second surface SB1_S2 opposite to the first surface SB1_S1. Further description of the substrate SB1 can be found in the foregoing embodiments and will not be repeated here.

[0140] Multiple patterned transparent patterns TP are disposed, for example, on the first surface SB1_S1 of substrate SB1. In this embodiment, an opening is provided between adjacent patterned transparent patterns TP. The remaining description of the multiple patterned transparent patterns TP can be referred to the foregoing embodiment, and will not be repeated here.

[0141] A circular polarizer 100 is disposed, for example, on a first surface SB1_S1 of a substrate SB1, and for example, in an opening of a plurality of patterned transparent patterns TP. From another perspective, the circular polarizer 100 also includes an opening OP. In this embodiment, the circular polarizer 100 includes a linear polarizing film 110, an intermediate layer 120, and a phase retardation film 130 stacked on top of each other. Specifically, the linear polarizing film 110 is disposed, for example, on the first surface SB1_S1 of the substrate SB1, the intermediate layer 120 is disposed, for example, on the surface of the linear polarizing film 110 away from the substrate SB1, and the phase retardation film 130 is disposed, for example, on the surface of the intermediate layer 120 away from the linear polarizing film 110.

[0142] The polarizing film 110 includes, for example, lyotropic liquid crystals and dichroic dyes. In this embodiment, the linearly polarizing film 110 includes a functional region R1 and a redundant region R2. Specifically, the linearly polarizing film 110 includes a functional region R1 that converts light into linearly polarized light and a redundant region R2, wherein the functional region R1 is defined as the region on which the linearly polarizing film 110 is disposed, and the redundant region R2 is defined as the opening OP of the linearly polarizing film 110.

[0143] The phase retardation film 130 includes, for example, lyotropic liquid crystal. In some embodiments, the phase retardation film 130 includes a quarter-wave plate, but this disclosure is not limited thereto.

[0144] The remaining description of the circular polarizer 100 can be found in the foregoing embodiments and will not be repeated here.

[0145] Substrate SB2, for example, has a first surface SB2_S1 and a second surface SB2_S2 opposite to the first surface SB2_S1. In this embodiment, the first surface SB2_S1 of substrate SB2 faces the first surface SB1_S1 of substrate SB1. Therefore, the circular polarizer 100 is disposed between substrate SB2 and substrate SB1, but this disclosure is not limited thereto. Further description regarding substrate SB2 can be found in the foregoing embodiments and will not be repeated here.

[0146] The circuit layer CL is disposed, for example, on the first surface SB2_S1 of the substrate SB2. In some embodiments, the circuit layer CL may include a plurality of transistors (not shown), a plurality of wires (not shown), and a plurality of insulating layers (not shown), but this disclosure is not limited thereto.

[0147] Multiple electronic units EU are disposed, for example, on a first surface of substrate SB2 and electrically connected, for example, to circuit layer CL. In this embodiment, the multiple electronic units EU are light-emitting elements, but this disclosure is not limited thereto. Further description of the multiple electronic units EU can be found in the foregoing embodiments and will not be repeated here.

[0148] In this embodiment, on the normal direction n of the first surface SB2_S1 of the substrate SB2, the redundant region R2 of the linear polarization film 110 overlaps with multiple electronic units EU, and the functional region R1 of the linear polarization film 110 overlaps with the area of ​​the substrate SB2 not covered by the multiple electronic units EU. Since the redundant region R2 of the linear polarization film 110 is an opening OP, the linear polarization film 110 of this embodiment can reduce the possibility of affecting the light emitted by the multiple electronic units EU, thereby increasing the light extraction efficiency of the electronic device 10a of this embodiment.

[0149] In this embodiment, the electronic device 10a further includes an adhesive layer AL. The adhesive layer AL is disposed, for example, between substrate SB1 and substrate SB2 to bond substrate SB1 and substrate SB2 to each other. The adhesive layer AL may, for example, include an optically clear resin (OCR) or an optically clear adhesive (OCA). For instance, the material of the adhesive layer AL may include acrylic resin, silicone resin, epoxy resin, or other suitable materials or combinations thereof, but this disclosure is not limited thereto. In other embodiments, the electronic device 10a may not include an adhesive layer AL. That is, an air gap is included between substrate SB1 and substrate SB2.

[0150] Figure 6B This is a partial cross-sectional schematic diagram of the electronic device according to the second embodiment of this disclosure. It should be noted that... Figure 6B The embodiments can be used Figure 6A The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0151] Please refer to Figure 6B The main difference between electronic device 10b and electronic device 10a in this embodiment is that electronic device 10b includes a color filter layer CF but does not include multiple patterned transparent patterns TP.

[0152] In detail, the color filter layer CF is located, for example, at the location where multiple patterned transparent patterns TP were originally provided in the electronic device 10a. That is, the color filter layer CF is disposed on the first surface SB1_S1 of the substrate SB1. The color filter layer CF includes, for example, multiple filter units, and these filter units overlap corresponding electronic units EU on the first surface SB2_S1 of the substrate SB2. In detail, in this embodiment, the color filter layer CF may include a red filter unit CF1, a green filter unit CF2, and a blue filter unit CF3, which overlap red light-emitting units EU1, green light-emitting units EU2, and blue light-emitting units EU3 respectively in the normal direction n of the first surface SB2_S1 of the substrate SB2. By providing the color filter layer CF, the ambient light irradiated to the electronic device 10b can be further absorbed, thereby improving the ambient light contrast of the electronic device 10b.

[0153] Figure 6C This is a partial cross-sectional schematic diagram of the electronic device according to the third embodiment of this disclosure. It should be noted that... Figure 6C The embodiments can be used Figure 6B The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0154] Please refer to Figure 6C The main difference between the electronic device 10c and the electronic device 10b in this embodiment is that the electronic device 10c also includes a light-shielding structure BM.

[0155] A light-shielding structure BM is disposed on a substrate SB1, and a circular polarizer is superimposed on the first surface SB2_S1 of the substrate SB2 in the normal direction n. In this embodiment, the light-shielding structure BM and the circular polarizer 100 are stacked, and the circular polarizer 100 is disposed between the light-shielding structure BM and the substrate SB1. The light-shielding structure BM may, for example, include a light-shielding material. For example, the material of the light-shielding structure BM may include black resin or a metal material with low reflectivity, but this disclosure is not limited thereto.

[0156] Figure 6D This is a partial cross-sectional schematic diagram of the electronic device according to the fourth embodiment of this disclosure. It should be noted that... Figure 6D The embodiments can be used Figure 6B The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0157] Please refer to Figure 6D The main difference between the electronic device 10d and the electronic device 10b in this embodiment is that the electronic device 10d also includes a pixel definition layer (PDL), a light conversion structure (LS), and a scattering layer (SC).

[0158] A pixel definition layer (PDL) is disposed, for example, on a first surface SB2_S1 of substrate SB2 and between adjacent electronic units EU. In some embodiments, the pixel definition layer (PDL) can be used to define the placement position of each of a plurality of electronic units EU, but this disclosure is not limited thereto. The pixel definition layer (PDL) may include, for example, a transparent material, a reflective material, or a light-shielding material. For example, the material of the pixel definition layer (PDL) may include an organic photoresist, but this disclosure is not limited thereto.

[0159] The light conversion structure LS is disposed, for example, on the surface SB1_S1 of the substrate SB1, and includes, for example, a barrier layer BANK, a wavelength conversion layer QDR, and a wavelength conversion layer QDG. Furthermore, in this embodiment, each of the plurality of electronic units EU is a light-emitting unit that emits light of the same color. For example, each of the plurality of electronic units EU is a blue light-emitting unit EU3, but this disclosure is not limited thereto.

[0160] For example, a corresponding circular polarizer 100 is superimposed on the surface SB2_S1 of the substrate SB2 in the normal direction n. In this embodiment, the circular polarizer 100 is disposed between the barrier layer BANK and the substrate SB1. The barrier layer BANK may, for example, comprise suitable organic or inorganic materials, and this disclosure is not limited thereto.

[0161] Wavelength conversion layers QDR and QDG overlap corresponding filter units on the normal direction n of the first surface SB2_S1 of substrate SB2, and are each stacked with corresponding filter units and light-emitting units. Specifically, in this embodiment, the wavelength conversion layer QDR overlaps with the red filter unit CF1 and the corresponding blue light-emitting unit EU3 on the normal direction n of the first surface SB2_S1 of substrate SB2, and the wavelength conversion layer QDG overlaps with the green filter unit CF2 and the corresponding blue light-emitting unit EU3 on the normal direction n of the first surface SB2_S1 of substrate SB2. In some embodiments, the materials of the wavelength conversion layers QDR and QDG may each include quantum dot materials, phosphorescent materials, fluorescent materials, other suitable wavelength conversion materials, or combinations thereof. In other words, the wavelength conversion layers QDR and QDG can each convert the blue light emitted by the blue light-emitting unit EU3 into light with another wavelength. In this embodiment, the colors of light with another wavelength converted by the wavelength conversion layer QDR and the wavelength conversion layer QDG can roughly correspond to the colors of the red filter unit CF1 and the green filter unit CF2.

[0162] The scattering layer SC is also, for example, stacked with a corresponding circular polarizer 100. In this embodiment, the scattering layer SCR overlaps with the blue filter unit CF3 and the corresponding blue light-emitting unit EU3 in the normal direction n of the first surface SB2_S1 of the substrate SB2. In some embodiments, the scattering layer SC may include organic materials and titanium dioxide particles therein to scatter the blue light emitted by the blue light-emitting unit EU3, but this disclosure is not limited thereto.

[0163] Figure 6E This is a partial cross-sectional schematic diagram of the electronic device according to the fifth embodiment of this disclosure. It should be noted that... Figure 6E The embodiments can be used Figure 6C and Figure 6D The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0164] Please refer to Figure 6E The main difference between the electronic device 10e and the electronic device 10d in this embodiment is that the electronic device 10e also includes a light-shielding structure BM. The description of the light-shielding structure BM can be found in the foregoing embodiments and will not be repeated here.

[0165] Figure 7A This is a partial cross-sectional schematic diagram of the electronic device according to the sixth embodiment of this disclosure. It should be noted that... Figure 7A The embodiments can be used Figure 6A The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0166] Please refer to Figure 7A The main difference between the electronic device 10f and the electronic device 10e in this embodiment is that the multiple patterned transparent patterns TP and the circular polarizer 100 are disposed on the second surface SB1_S2 of the substrate SB1.

[0167] Figure 7B This is a partial cross-sectional schematic diagram of the electronic device according to the seventh embodiment of this disclosure. It should be noted that... Figure 7B The embodiments can be used Figure 7A and Figure 6C The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0168] Please refer to Figure 7B The main difference between the electronic device 10g and the electronic device 10f in this embodiment is that the electronic device 10g further includes a color filter layer CF and a light-shielding structure BM disposed on the first surface SB1_S1 of the substrate SB1. The description of the color filter layer CF and the light-shielding structure BM can be found in the foregoing embodiments and will not be repeated here.

[0169] Figure 7C This is a partial cross-sectional schematic diagram of the electronic device according to the eighth embodiment of this disclosure. It should be noted that... Figure 7C The embodiments can be used Figure 7B and Figure 6E The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0170] Please refer to Figure 7C The main difference between the electronic device 10h and the electronic device 10g in this embodiment is that the electronic device 10h further includes a light conversion structure LS and a scattering layer SC disposed on the first surface SB1_S1 of the substrate SB1, and also includes a pixel definition layer PDL disposed on the first surface SB2_S1 of the substrate SB2. The descriptions of the light conversion structure LS, the scattering layer SC, and the pixel definition layer PDL can be found in the foregoing embodiments and will not be repeated here.

[0171] Figure 8AThis is a partial cross-sectional schematic diagram of the electronic device according to the ninth embodiment of this disclosure. It should be noted that... Figure 8A The embodiments can be used Figure 6A as well as Figure 5 The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0172] Please refer to Figure 8A In this embodiment, the main difference between the electronic device 10i and the electronic device 10a is that the electronic device 10i does not include a plurality of patterned transparent patterns TP, and the circular polarizer 100 is disposed on the first surface SB2_S1 of the substrate SB2.

[0173] In this embodiment, the electronic device 10i also includes a bottom filler UF. The bottom filler UF is disposed on, for example, the circuit layer CL and covers the electronic unit EU, for example, to protect the circuit layer CL and / or the electronic unit EU. Additionally, the bottom filler UF fills, for example, the openings between adjacent electronic units EU, for example, to fix the electronic unit EU, but this disclosure is not limited thereto. The material of the bottom filler UF may include, for example, an optically transparent resin. For example, the material of the bottom filler UF may include silicone resin, epoxy resin, or other suitable materials or combinations thereof, but this disclosure is not limited thereto.

[0174] Based on this, the circular polarizer 100 in this embodiment is disposed on the bottom filler UF and located between adjacent electronic units EU. Figure 8B This is a partial cross-sectional schematic diagram of the electronic device according to the tenth embodiment of this disclosure. It should be noted that... Figure 8B The embodiments can be used Figure 8A as well as Figure 6C The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0175] Please refer to Figure 8B In this embodiment, the main difference between electronic device 10j and electronic device 10i is that electronic device 10j further includes a color filter layer CF and a light-shielding structure BM disposed on the first surface SB1_S1 of substrate SB1. The description of the color filter layer CF and the light-shielding structure BM can be found in the foregoing embodiments and will not be repeated here.

[0176] In addition, in this embodiment, the bottom filler UF is disposed on the circuit layer CL and located in the opening between adjacent electronic units EU, wherein the height of the top surface of the bottom filler UF is lower than the height of the top surface of the electronic unit EU, but this disclosure is not limited thereto.

[0177] Based on this, the circular polarizer 100 in this embodiment is disposed on the bottom filler UF and located between adjacent electronic units EU.

[0178] Figure 8C This is a partial cross-sectional schematic diagram of the electronic device according to the eleventh embodiment of this disclosure. It should be noted that... Figure 8C The embodiments can be used Figure 8A and Figure 6D The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0179] Please refer to Figure 8C In this embodiment, the main difference between the electronic device 10k and the electronic device 10i is that the electronic device 10k also includes a pixel definition layer (PDL) disposed on the first surface SB2_S1 of the substrate SB2.

[0180] In this embodiment, the pixel definition layer (PDL) is disposed in the opening between adjacent electronic units (EU), and is located between the circular polarizer 100 and the substrate SB2 in the normal direction n of the substrate SB2. The description of the pixel definition layer (PDL) can be found in the foregoing embodiments and will not be repeated here.

[0181] In addition, in this embodiment, the bottom filler UF covers the electronic unit EU and fills the gap between the adjacent electronic unit EU and the pixel definition layer PDL. Specifically, the bottom filler UF can... Figure 8C The cross-sectional view shows a U-shaped structure to cover the electronic unit EU. The height of the top surface of the bottom filler UF is, for example, lower than the height of the top surface of the pixel definition layer PDL, thus exposing a portion of the side surface of the pixel definition layer PDL. In this embodiment, the circular polarizer 100 is disposed on the exposed portion of the pixel definition layer PDL. Specifically, the phase retardation film 130 of the circular polarizer 100 can be... Figure 8C The cross-sectional schematic diagram shows a U-shaped structure to cover the exposed portion of the pixel definition layer (PDL), and the intermediate layer 120 and the linear polarization film 110 are sequentially disposed on the phase retardation film 130.

[0182] Figure 8D This is a partial cross-sectional schematic diagram of the electronic device according to the twelfth embodiment of this disclosure. It should be noted that... Figure 8D The embodiments can be used Figure 8C as well as Figure 8B The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0183] Please refer to Figure 8DIn this embodiment, the main difference between the electronic device 10l and the electronic device 10k is that the electronic device 10l further includes a color filter layer CF and a light-shielding structure BM disposed on the first surface SB1_S1 of the substrate SB1. The description of the color filter layer CF and the light-shielding structure BM can be found in the foregoing embodiments and will not be repeated here.

[0184] In this embodiment, the bottom filler UF is disposed on the circuit layer CL and located in the gap between the adjacent electronic unit EU and the pixel definition layer PDL. The height of the top surface of the bottom filler UF is, for example, lower than the height of the top surface of the pixel definition layer PDL, thus exposing a portion of the side surface of the pixel definition layer PDL. In this embodiment, the circular polarizer 100 is disposed on the portion of the pixel definition layer PDL exposed by the bottom filler UF. Specifically, the phase retardation film 130 of the circular polarizer 100 can be... Figure 8D The cross-sectional schematic diagram shows a U-shaped structure to cover the exposed portion of the pixel definition layer (PDL), and the intermediate layer 120 and the linear polarization film 110 are sequentially disposed on the phase retardation film 130.

[0185] In summary, the linear polarizing film in the circular polarizer of some embodiments of the electronic device disclosed herein has a functional region and a redundant region. The functional region overlaps with a region not covered by multiple electronic units, and the redundant region overlaps with multiple electronic units. The functional region of the linear polarizing film has the function of linearly polarizing light, and the redundant region of the linear polarizing film can reduce the impact on the light emitted by multiple electronic units. Through the above-described arrangement of the circular polarizer, the functional region does not overlap with multiple electronic units; therefore, the light extraction efficiency of the electronic device in some embodiments of the present disclosure can be improved, and the reflection of light by the circuit layer can be reduced.

[0186] Furthermore, the manufacturing method of the electronic device disclosed herein proposes a novel method for forming a circular polarizer, which involves drying a lyotropic liquid crystal composition and coloring it to form a linear polarizing film. The lyotropic liquid crystal composition can be patterned before or after drying to form functional areas and redundant areas; alternatively, the lyotropic liquid crystal composition can be colored with multiple patterns after drying to form functional areas and redundant areas. Therefore, by using the above-described method for forming a circular polarizer, the electronic device manufactured using the manufacturing method of the electronic device disclosed herein can reduce light reflection from the circuit layer and improve its light extraction efficiency.

[0187] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electronic device, characterized in that, include: A first substrate has a first surface; A circuit layer is disposed on the first surface; Multiple electronic units are disposed on the first surface and electrically connected to the circuit layer; as well as A circular polarizer includes a phase retardation film and a linear polarizing film disposed on the phase retardation film, wherein the linear polarizing film includes a functional region and a redundant region. Wherein, in the normal direction of the first surface, the redundant area overlaps the plurality of electronic units, and the functional area overlaps the area of ​​the first substrate not covered by the plurality of electronic units.

2. The electronic device according to claim 1, wherein the phase retardation film comprises lyotropic liquid crystal.

3. The electronic device according to claim 1, wherein the linear polarizing film comprises lyotropic liquid crystal and dichroic dye.

4. The electronic device of claim 3, wherein the redundant area is an opening.

5. The electronic device of claim 3, wherein the redundant area is an uncolored area.

6. The electronic device of claim 1, wherein the circular polarizer further comprises an intermediate layer disposed between the phase retardation film and the linear polarization film.

7. The electronic device according to claim 1, further comprising: A second substrate has a second surface, wherein the second surface faces the first surface; as well as A color filter layer is disposed on the second surface of the second substrate, wherein the color filter layer includes a plurality of filter units, and the plurality of filter units overlap corresponding electronic units in the normal direction of the first surface.

8. The electronic device according to claim 7, further comprising: A light-shielding structure is disposed on the second surface of the second substrate, wherein the light-shielding structure overlaps the circular polarizer in the normal direction of the first surface.

9. The electronic device according to claim 7, wherein each of the plurality of electronic units is a light-emitting unit that emits light of the same color.

10. The electronic device according to claim 9, further comprising: A wavelength conversion layer is disposed on the second surface of the second substrate, wherein the wavelength conversion layer overlaps a corresponding filter unit and a corresponding light-emitting unit in the normal direction of the first surface; as well as A barrier layer is disposed on the second surface of the second substrate, wherein the barrier layer overlaps the circular polarizer in the normal direction of the first surface.

Images