CN115201956A

CN115201956A - Electronic device and method for manufacturing electronic device

Info

Publication number: CN115201956A
Application number: CN202111333029.8A
Authority: CN
Inventors: 陈怡欣; 陈英仁; 丁景隆
Original assignee: Innolux Display Corp
Current assignee: Innolux Corp
Priority date: 2021-04-09
Filing date: 2021-11-11
Publication date: 2022-10-18

Abstract

The present disclosure provides an electronic device. The electronic device comprises a panel; and a polarizing element. The polarizing element is disposed on one side of the panel, wherein the polarizing element includes a multi-layer coating type polarizing layer. The present disclosure further provides a method for manufacturing an electronic device.

Description

Electronic device and method for manufacturing electronic device

Technical Field

The present disclosure relates to an electronic device and a method for manufacturing the electronic device.

Background

In electronic devices, the panel generally requires the use of one or more optical films (e.g., polarizing films), and improvements are still needed in how to fabricate the optical films and how to incorporate the optical films into the panel.

Disclosure of Invention

According to an embodiment of the present disclosure, an electronic device is provided. The electronic device comprises a panel; and a polarizing element. The polarizing element is disposed on one side of the panel, wherein the polarizing element includes a multi-layer coating type polarizing layer.

According to an embodiment of the present disclosure, a method for manufacturing an electronic device includes providing a panel; and arranging a polarizing element on one side of the panel, wherein the polarizing element is provided with a plurality of polarizing layers, and the plurality of polarizing layers are formed by a coating process.

In order to make the aforementioned and other features and advantages of the disclosure more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the disclosure;

FIG. 2 is a diagram of an electronic device according to an embodiment of the disclosure;

FIG. 3 is a diagram of an electronic device according to an embodiment of the disclosure;

FIG. 4 is a diagram of an electronic device according to an embodiment of the disclosure;

FIG. 5 is a schematic view of an electronic device according to an embodiment of the disclosure;

FIGS. 6 and 7 are schematic diagrams illustrating the optical effects of the polarizer according to the embodiments of the present disclosure;

FIG. 8 is a diagram of an electronic device according to an embodiment of the disclosure;

FIG. 9 is a diagram of an electronic device according to an embodiment of the disclosure;

fig. 10 is a schematic view of an electronic device according to an embodiment of the disclosure.

Detailed Description

Certain terms are used throughout the description and following claims to refer to particular components. Those skilled in the art will appreciate that electronic device manufacturers may refer to the same components by different names. This document does not intend to distinguish between components that differ in function but not name. In the following specification and claims, the words "comprise", "comprising", "includes" and "including" are open-ended words, and thus should be interpreted to mean "including, but not limited to, \8230;".

Directional phrases used herein, such as: "up", "down", "front", "back", "left", "right", etc., refer only to the orientation of the figures. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting. In the drawings, which illustrate general features of methods, structures, and/or materials used in certain embodiments. These drawings, however, should not be construed as defining or limiting the scope or nature encompassed by these embodiments. For example, the relative sizes, thicknesses, and locations of various film layers, regions, and/or structures may be reduced or exaggerated for clarity.

The description of a structure (or layer, element, substrate) on/over another structure (or layer, element, substrate) in the present disclosure may refer to two structures being adjacent and directly connected, or may refer to two structures being adjacent and not directly connected. By indirectly connected, it is meant that there is at least one intervening structure (or intervening layer, intervening component, intervening substrate, intervening space) between two structures, the lower surface of one structure being adjacent to or directly connected to the upper surface of the intervening structure, and the upper surface of the other structure being adjacent to or directly connected to the lower surface of the intervening structure. The intermediate structure may be a single-layer or multi-layer solid structure or a non-solid structure, and is not limited. In the present disclosure, when a structure is "disposed on" another structure, it may mean that the structure is "directly" on the other structure or "indirectly" on the other structure, that is, at least one structure is further interposed between the structure and the other structure.

The terms "about," "equal to," or "the same," "substantially," or "approximately" are generally construed 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. The use of ordinal numbers such as "first," "second," etc., in the specification and claims to modify an element, is not itself intended to imply any previous order to the element(s), nor is the order in which an element may be sequenced or methods of manufacture to distinguish it from another element having a similar designation. The claims may not use the same language in the specification and accordingly, a first element in the specification may be a second element in the claims.

The electrical connection or coupling described in the present disclosure may refer to a direct connection or an indirect connection, in which case, the terminals of the two circuit components are directly connected or connected with each other by a conductor segment, and in which case, the terminals of the two circuit components have a switch, a diode, a capacitor, an inductor, a resistor, other suitable components, or a combination of the above components, but is not limited thereto.

In the present disclosure, the thickness, length and width may be measured by an optical microscope, and the thickness or width may be measured by a cross-sectional image of an electron microscope, but not limited thereto. In addition, there may be some error in any two values or directions for comparison. In addition, the terms "equal," "same," "substantially," or "approximately" as referred to in this disclosure generally represent 10% of the range of a given value or range. Further, the phrase "a given range is from a first value to a second value," and "a given range is within a range from a first value to a second value" means that the given range includes the first value, the second value, and other values therebetween. If the first direction is perpendicular to the second direction, the angle between the first direction and the second direction may be between 80 degrees and 100 degrees; if the first direction is parallel to the second direction, the angle between the first direction and the second direction may be between 0 degrees and 10 degrees.

It is to be understood that the following disclosure is illustrative of various embodiments, and that various changes, substitutions, and alterations can be made herein without departing from the spirit and scope of the disclosure. Features of the various embodiments may be combined and matched as desired, without departing from the spirit or ambit of the invention.

Unless defined otherwise, 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 disclosure 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 idealized or overly formal sense unless expressly so defined herein. In the present disclosure, the electronic device may include a display device, a backlight device, an antenna device, a sensing device or a splicing device, but is not limited thereto. The electronic device can be a bendable or flexible electronic device. The display device may be a non-self-luminous type display device or a self-luminous type display device. The antenna device may be a liquid crystal type antenna device or a non-liquid crystal type antenna device, and the sensing device may be a sensing device for sensing capacitance, light, heat or ultrasonic waves, but not limited thereto. In the present disclosure, the electronic devices may include passive devices and active devices, such as capacitors, resistors, inductors, diodes, transistors, etc. The diode may comprise a light emitting diode or a photodiode. The light emitting diode may include, for example, an Organic Light Emitting Diode (OLED), a submillimeter light emitting diode (mini LED), a micro light emitting diode (micro LED), or a quantum dot light emitting diode (quantum dot LED), but is not limited thereto. The present disclosure will be described below with reference to a display device as an electronic device or a splicing device, but the present disclosure is not limited thereto.

It should be noted that the technical solutions provided in the following different embodiments can be used alternatively, combined or mixed with each other to form another embodiment without departing from the spirit of the present disclosure.

In some embodiments of the present disclosure, terms such as "connected," "interconnected," and the like, with respect to bonding, connecting, and the like, may refer to two structures being in direct contact, or may also refer to two structures not being in direct contact, unless otherwise specified, with respect to the structure between which they are disposed. The terms coupled and connected should also be construed to include the case where both structures are movable or fixed. Furthermore, the terms "electrically connected" and "coupled" encompass any direct and indirect electrical connection.

In the following embodiments, the same or similar elements will be denoted by the same or similar reference numerals, and the detailed description thereof will be omitted. Furthermore, the features of the various embodiments may be combined in any suitable manner without departing from the spirit or conflict of the invention, and all such modifications and equivalents as may be within the spirit and scope of the disclosure are deemed to be within the ambit and scope of the disclosure. In addition, the terms "first", "second", and the like in the description and the claims are only used for naming different elements or distinguishing different embodiments or ranges, and are not used for limiting the upper limit or the lower limit of the number of the elements, and are not used for limiting the manufacturing order or the arrangement order of the elements.

Fig. 1 is a schematic diagram of an electronic device according to an embodiment of the disclosure. The electronic device 100 of fig. 1 includes a panel 110, and polarizing elements (e.g., a polarizing element 120 and a polarizing element 130) disposed on one side of the panel 110. In detail, the polarizer 120 is disposed on the first side 110A of the panel 110, the polarizer 130 is disposed on the second side 110B of the panel 110, and the first side 110A and the second side 110B are opposite to each other. In some embodiments, the panel 110 may be a display panel, such as a liquid crystal display panel, an organic light emitting display panel, an electrowetting display panel, an electrophoretic display panel, or the like, or other suitable panel. In some embodiments, the polarizing element 120 and/or the polarizing element 130 are disposed on the outer surface of the panel 110, but is not limited thereto. In some embodiments, the polarizing elements (e.g., polarizing element 120 and polarizing element 130) comprise multiple coated polarizing layers. For example, the polarizing element 120 may include a multi-layered coated polarizing layer 122, and the polarizing element 130 may include a multi-layered coated polarizing layer 132. In some embodiments, the coated polarizing layer 122 of the polarizing element 120 may be formed by a coating process. In some embodiments, the coated polarizing layer 132 of the polarizing element 130 may be formed by a coating process. In some embodiments, the multilayer coated polarizing layers 122 may or may not be in contact with each other. In some embodiments, the multilayer coated polarizing layers 132 may or may not be in contact with each other. In some embodiments, the optical absorption axes of two adjacent coated polarizing layers in the multilayer coated polarizing layer 122 are parallel to each other. In some embodiments, the optical absorption axes of two adjacent coated polarizing layers in the multilayer coated polarizing layer 132 are parallel to each other.

In some embodiments, one of the multiple coated polarizing layers 122/132 contacts the panel 110. For example, the polarizing element 120 may directly contact the first side 110A of the panel 110 and include the multi-layered coated polarizing layer 122, or the polarizing element 130 may directly contact the second side 110B of the panel 110 and include the multi-layered coated polarizing layer 132. In some embodiments, one of the polarizer 120 and the polarizer 130 may be omitted. In some embodiments, one of the polarizing element 120 and the polarizing element 130 may be replaced by a stretched polarizing film.

Taking the manufacturing steps of the polarizer 120 as an example, the method of manufacturing the electronic device 100 includes providing the panel 110 and disposing the polarizer 120 on the first side 110A of the panel 110. The method of manufacturing the polarizing element 120 includes coating a polarizing layer material, such as a liquid crystal material, a liquid crystal material mixed with dyes, or other alternative materials, on the panel 110, and curing the polarizing layer material into a layer to form the first coated polarizing layer 122, but is not limited thereto. Then, the coating and curing steps are repeated on the formed coated polarizing layer 122 to sequentially form a second layer and other coated polarizing layers 122. The first layer of the coated polarizing layer 122 is closer to the panel 110 than the second layer is to the other layers of the coated polarizing layer 122, and the first layer of the coated polarizing layer 122 may contact the panel 110. That is, no other film layers are present between the coated polarizing layer 122 of the first layer and the panel 110, but is not limited thereto.

When the polarizing layer material is coated on the panel 110, the molecules in the polarizing layer material may be aligned approximately in accordance with the coating direction (e.g., the traveling direction of the coating head), and the orientation of the molecules in the polarizing layer material is fixed after the polarizing layer material is cured. In some embodiments, when the polarizing layer is made of liquid crystal material, the liquid crystal material can have optical orientation when the orientation of the liquid crystal material is fixed. Therefore, the coated polarizing layer 122 fabricated in this manner has polarizing properties. The absorption axis of the coated polarizing layer 122 may be determined substantially according to the coating direction. In some embodiments, the liquid crystal material closer to the panel 110 may be more aligned in the coated polarizing layer 122 formed via coating. Therefore, when the multi-coated polarizing layers 122 of the polarizing element 120 are made of the same material, an interface can still be observed between the adjacent two coated polarizing layers 122. For example, when two adjacent coated polarizing layers 122 are in contact with each other in the thickness direction of the panel 110, a discontinuous boundary of regular and irregular arrangement of the polarizing layer materials can be observed, which can be used to determine the interface of two adjacent coated polarizing layers 122, but is not limited thereto.

In fabricating each layer of the coated polarizing layer 122, a fixed coating direction may be employed, i.e., the relative relationship between the coating direction and the positioning of the panel 110 is fixed. As such, the multi-layered coated polarizing layers 122 constituting the polarizing element 120 may have the same direction of absorption axis to provide a uniform polarizing direction, but are not limited thereto. In some embodiments, the manufacturing method of the polarizer 130 is substantially the same as the manufacturing method of the polarizer 120, and therefore, the description thereof is not repeated. In some embodiments, the multilayer coated polarizing layer 132 of the polarizing element 130 is fabricated with a coating direction that may be different from the coating direction used to fabricate the coated polarizing layer 122. In some embodiments, the polarization direction provided by polarizing element 130 may be different from the polarization direction provided by polarizing element 120. In some embodiments, the polarization direction provided by the polarization element 130 may be substantially perpendicular to the polarization direction provided by the polarization element 120, but is not limited thereto. In other words, the absorption axis direction of the polarizing element 130 may be different from the absorption axis direction of the polarizing element 120. In some embodiments, the absorption axis of the polarizing element 130 may be substantially perpendicular to the absorption axis of the polarizing element 120. In some embodiments, the polarizer 120 and/or the polarizer 130 are coated on the panel 110, which can reduce the manufacturing cost.

In some embodiments, the panel 110 is a non-self-luminous display panel, and the electronic device 100 may include a light source module (not shown). The light source module may be located at one side of the panel 110. The light emitted from the light source module passes through one of the polarizer 130 and the polarizer 120 before entering the panel 110, and the light emitted from the light source module passes through the other of the polarizer 130 and the polarizer 120 after passing through the panel 110 before being provided to the user (viewer). Here, the light emitted from the light source module sequentially passes through the polarizer 130, the panel 110 and the polarizer 120 as an example. The light L0 can be converted into a first polarized light L1 through the polarization element 130, which has a linear polarization with a first direction, for example, the polarization direction provided by the polarization element 130. The first polarized light L1 can be converted into second polarized light L2 having a linear polarization in a second direction through the panel 110. Then, the second polarized light L2 can be converted into third polarized light L3 having a linear polarization in a third direction by the polarizer 120, and the third direction is the polarization direction provided by the polarizer 120. In some embodiments, the polarization directions of the first polarized light L1 and the third polarized light L3 may be perpendicular to each other. In some embodiments, the panel 110 may or may not change the polarization direction of the first polarized light L1 according to design requirements. In some cases, if the polarization direction of the first polarized light L1 is not changed in the panel 110, that is, the polarization directions of the first polarized light L1 and the second polarized light L2 are the same, after the second polarized light L2 enters the polarization element 120, most of the second polarized light L2 may be absorbed by the polarization element 120 and cannot pass through the polarization element 120, so as to display a dark-state image (e.g., a black image), for example. In some cases, if the polarization direction of the first polarized light L1 can be changed by the panel 110, so that the first polarized light L1 is converted into a second polarized light L2 with a different polarization direction, and the second polarized light L2 can at least partially pass through the polarizer 120 after entering the polarizer 120, so as to present a corresponding bright-state image.

In the present embodiment, the polarizer element 120 includes at least two coated polarizing layers 122, and the polarizing efficiency of the polarizer element 120 can be improved by the at least two coated polarizing layers 122. For example, in one experiment, a single coated polarizing layer 122 provided a polarization efficiency of about 99.5, while a two coated polarizing layer 122 provided a polarization efficiency of about 99.8, but is not limited thereto. Therefore, the number of the coated polarizing layers 122 of the polarizing element 120 can be adjusted according to different design specifications, and is not limited to the number of layers disclosed in the present disclosure. Additionally, the thickness of the single layer coated polarizing layer 122 is, but not limited to, 0.6 to 1 micron in some embodiments.

Fig. 2 is a schematic view of an electronic device according to an embodiment of the disclosure. The electronic device 200 of fig. 2 includes a panel 110 and a polarizing element 220, wherein the polarizing element 220 includes a multi-layer coated polarizing layer 122 and at least one separating layer 222. For example, the polarizing element 220 includes a multilayer coated polarizing layer 122 and a multilayer separating layer 222. The panel 110 and the multi-layer coated polarizing layer 122 are substantially similar to the corresponding components of the foregoing embodiment, and the manufacturing method and the arrangement relationship thereof can refer to the description of the foregoing embodiment and are not repeated. In the present embodiment, the polarization element 220 is disposed on the first side 110A of the panel 110. In other embodiments, the second side 110B of the panel 110 may be further provided with a polarizer or the polarizer 130 of fig. 1 to achieve the desired optical effect. Specifically, the polarizer 220 is different from the polarizer 120 in that the polarizer 220 further includes at least one separation layer 222, the separation layer 222 can be disposed between two of the plurality of coated polarizing layers 122, and the separation layer 222 has no polarization. In other words, the separating layer 222 can separate two adjacent coated polarizing layers 122. In this embodiment, the coated polarizing layer 122 closest to the panel 110 may selectively contact the panel 110, but is not limited thereto. In other embodiments, other layers may be interposed between the coated polarizing layer 122 closest to the panel 110 and the panel 110.

The step of manufacturing the polarizer 220 may include coating and curing the polarizing layer material according to the above-mentioned embodiment, and further form the separating layer 222 after each layer of the coated polarizing layer 122 is formed, and then manufacture the next layer of the coated polarizing layer 122, but not limited thereto. The method of forming the separation layer 222 may include, but is not limited to, coating, deposition, or the like. In some embodiments, the separation layer 222 may have optical isotropy, without polarization. Thus, the coated polarizing layers 122 on both sides of each separator 222 may have substantially the same polarization direction. In some embodiments, the separation layer 222 may have a phase retardation, and the coated polarizing layers 122 on both sides of the separation layer 222 may have the same or different polarization directions in cooperation with the phase retardation of the separation layer 222. In some embodiments, the separating layers 222 may have adhesive properties, which is advantageous for the coating-type polarizing layers 122 on both sides of each separating layer 222 to be firmly attached to the separating layer 222, but is not limited thereto. In some embodiments, the material of the separation layer 220 may include an inorganic material, an organic material, or a combination thereof. For example, the material of the separation layer 220 may include silicon nitride, photoresist, resin material, polymer material, optical glue or other similar transparent or light-transmissive materials.

Fig. 3 is a schematic view of an electronic device according to an embodiment of the disclosure. The electronic device 300 of fig. 3 includes a panel 110 and a polarizer 320, the polarizer 320 including a multilayer coated polarizer layer 122 and a multilayer spacer layer 322. The panel 110 and the multi-layer coated polarizing layer 122 are substantially similar to the corresponding components of the foregoing embodiment, and the manufacturing method and the arrangement relationship thereof can refer to the description of the foregoing embodiment and are not repeated. In the present embodiment, the polarizer 320 is disposed on the first side 110A of the panel 110. In other embodiments, the second side 110B of the panel 110 may be further provided with a polarizer or the polarizer 130 of fig. 1 to achieve the desired optical effect.

In the present embodiment, the polarizer 320 is different from the polarizer 120 in that the polarizer 320 further includes a spacer layer 322, the spacer layer 322 is disposed between the multi-layered coating-type polarizing layers 122, and the spacer layer 322 has no polarization. Specifically, the separation layer 322 may include a plurality of

separation sublayers

322A and 322B. In this embodiment, the separator sublayer 322A may include a protective layer, and the separator sublayer 322B may include an adhesive layer. The separator sublayer 322B is used to adhere the separator sublayer 322A to one of the coated polarizing layers 122, but is not limited thereto. Thus, each of the separating sublayers 322B is located between one of the separating sublayers 322A and one of the coated polarizing layers 122, but is not limited thereto. In other embodiments (not shown), the separation layer 322 may include a plurality of

separation sublayers

322A and 322B, and two separation sublayers 322B may be located on both sides of the separation sublayer 322A, for example.

In some embodiments, the method of manufacturing the electronic device 300 includes forming the first coated polarizing layer 122 (closest to the panel 110) on the panel 110 by the coating method described in the embodiment of fig. 1, attaching the separating sub-layer 322A (protective layer) to the panel 110 by the separating sub-layer 322B (adhesive layer), forming the second coated polarizing layer 122 on the separating sub-layer 322A by the coating method described in the embodiment of fig. 1, and attaching the other separating sub-layer 322A to the panel 110 by the separating sub-layer 322B. The above steps are repeated to complete the polarizer 320, but not limited thereto. In some embodiments, the separator sublayer 322A is, for example, a pre-fabricated film layer. For example, separator sublayer 322A may comprise a formed film, glass, or the like. Therefore, the separator sublayer 322A can be adhered to the coated polarizing layer 122 by the separator sublayer 322B, rather than being directly fabricated on the panel 110. In some embodiments, the separating sub-layer 322B may include an adhesive and transparent optical glue, but not limited thereto. In some embodiments, the polarizing element 320 may be applied to the electronic device 100 of fig. 1 instead of the

polarizing element

120 or 130.

Fig. 4 is a schematic view of an electronic device according to an embodiment of the disclosure. The electronic device 400 of fig. 4 includes a panel 110 and a polarizer 420, and the polarizer 420 may include a multilayer coated polarizing layer 122 and a multilayer separating layer 422. The panel 110 and the multi-layer coated polarizing layer 122 are substantially similar to the corresponding components of the foregoing embodiment, and the manufacturing method and the arrangement relationship thereof can refer to the description of the foregoing embodiment and are not repeated.

In the present embodiment, the polarizer 420 may be formed by stacking a plurality of polarizing units 420U. Each polarization unit 420U may include a coated polarizing layer 122, a separator sublayer 422A, and/or a separator sublayer 422B. Separator sublayer 422A may be a formed film, glass, or the like. The coated polarizing layer 122 may be formed on the separator layer 422A by the coating method described in fig. 1. The separator sublayer 422B can be an adhesive layer with adhesive properties, such as an optical glue, and the separator sublayer 422B can be formed on the coated polarizing layer 122. The polarizer 420U may be attached to the panel 110 or other polarizer 420U through the separator layer 422B to form the polarizer 420, but is not limited thereto. That is, the coated polarizing layer 122 may be manufactured in advance and then attached to the panel 110 by means of adhesion. In other words, the coated polarizing layer 122 in the polarizing element 420 is not in contact with the panel 110, for example.

In the polarizer 420, a separator layer 422A and a separator layer 422B may be disposed between two adjacent coated polarizing layers 122 to form a separator layer 422, but is not limited thereto. However, the separator sublayer 422A and the separator sublayer 422B that are in contact with each other to constitute the separator layer 422 may belong to different polarization units 420U. For example, when the polarization unit 420U closest to the panel 110 is defined as a first layer of polarization unit 420U, and the polarization unit 420B on the first layer of polarization unit 420U is defined as a second layer of polarization unit 420U, the separator sub-layer 422B of the first layer of polarization unit 420U may contact the panel 110, and the separator sub-layer 422A of the first layer of polarization unit 420U and the separator sub-layer 422B of the second layer of polarization unit 420U are combined into the separator layer 420 between the two adjacent coated polarization layers 122. In this embodiment, the separation layer 420 may not have polarization. Specifically, neither the separator sublayer 422A nor the separator sublayer 422B has polarization properties. Thus, light passing through the separator sublayer 422A and/or the separator sublayer 422B does not significantly change the polarization state. Thus, the polarizing effect of the polarizer 420 is mainly determined by the multilayer coating type polarizing layer 122.

Fig. 5 is a schematic diagram of an electronic device according to an embodiment of the disclosure. The electronic device 500 of fig. 5 includes a panel 110 and a polarizing element 520. The electronic device 500 is substantially similar to the electronic device 400, and therefore components represented by the same elements in the two embodiments can be referred to each other without further description. The electronic device 500 differs from the electronic device 400 in that the polarizing element 520 includes a coated polarizing layer 122 in direct contact with the panel 110 in addition to the polarizing element 420. The method for manufacturing the coated polarizing layer 122 of the touch panel 110 can be described with reference to the embodiment of fig. 1, and is not repeated here.

Fig. 6 and 7 are schematic diagrams for illustrating the optical effect of the polarizer according to the embodiment of the disclosure. In fig. 6, a separating layer 630 between two adjacent coated

polarizing layers

610 and 620 and two adjacent coated

polarizing layers

610 and 620 in a polarizing element is shown. The structure, material, arrangement, etc. of the coated

polarizing layers

610 and 620 can be referred to the description of the coated polarizing layer 122 in the previous embodiment, and the structure, material, arrangement, etc. of the separating layer 630 can be referred to the description of the

separating layer

222, 322, or 422 in the previous embodiment. In fig. 6, a polarization direction P610 provided by the coated polarizing layer 610 and a polarization direction P620 provided by the coated polarizing layer 620 may be parallel to each other. In some embodiments, separation layer 630 may not have polarizing properties, and separation layer 630 may not have phase retardation. For example, the phase retardation value of the separation layer 630 is approximately equal to 0 nm (or an error of, for example, 0 ± 20 nm), and the optical absorption axis directions of the two coated polarizing layers (e.g., the coated polarizing layers 610 and 620) are parallel to each other. By the above design, the light passing through the coated polarizing layer 610 can have a polarization state parallel to the polarization direction P610, and the polarized light still has a polarization state substantially parallel to the polarization direction P610 after passing through the separating layer 630 (without phase retardation), and enters the coated polarizing layer 620. Since the polarization direction P620 of the coated polarization layer 620 is substantially parallel to the polarization direction P610, most of the polarized light can pass through the coated polarization layer 620.

In some embodiments, the separation layer 630 may have a phase retardation, and the phase retardation value of the separation layer 630 is not 0 nm, and the optical absorption axis directions of the two coated polarizing layers 610 are parallel to each other or intersect each other.

For example, the polarization direction P610 provided by the coated polarization layer 610 and the polarization direction P620 provided by the coated polarization layer 620 may be substantially parallel. In addition, separation layer 630 may have a phase retardation (i.e., separation layer 630 may have a phase retardation value other than 0 nm). In addition, the slow axis a630a of the spacer layer 630 may be disposed substantially parallel to the polarization direction P610. Thus, the light passing through the coated polarizing layer 610 may still have a polarization state substantially parallel to the polarization direction P610 after passing through the separation layer 630, and the polarized light may mostly pass through the coated polarizing layer 620 after passing through the separation layer 630.

In some embodiments, the polarization direction P610 provided by the coated polarizing layer 610 and the polarization direction P620 provided by the coated polarizing layer 620 may be substantially parallel. Meanwhile, the separation layer 630 may have a phase retardation, and the phase retardation value of the separation layer 630 is not 0 nm. In addition, the slow axis a630b of the spacer layer 630 may be disposed substantially perpendicular to the polarization direction P610. Thus, the light passing through the coated polarizing layer 610 may still have a polarization state substantially parallel to the polarization direction P610 after passing through the separation layer 630, and the polarized light may mostly pass through the coated polarizing layer 620 after passing through the separation layer 630.

In some embodiments, the separation layer 630 may have a phase delay, and the phase delay value of the separation layer 630 is an integer multiple of the wavelength (e.g., λ) of the incident light (e.g., n λ, and n is an integer). At this time, the slow axis a630c of the separation layer 630 may intersect the polarization direction P610 at an angle θ 1, and the angle θ is 45 degrees, for example. Thus, light passing through the coated polarizing layer 610 after passing through the separation layer 630 may have a polarization state substantially parallel to the polarization direction P610, and most of the light passing through the separation layer 630 may pass through the coated polarizing layer 620.

Fig. 7 shows two adjacent coated

polarizing layers

710 and 720 and a separating layer 730 between the two adjacent coated

polarizing layers

710 and 720 in the polarizing element. As shown in fig. 7, the polarization direction P710 provided by the coated polarization layer 710 and the polarization direction P720 provided by the coated polarization layer 720 may intersect each other. In this case, the separation layer 730 can have a phase retardation, i.e., the phase retardation of the separation layer 63 is not equal to 0 nm. For example, the polarization direction P710 and the polarization direction P720 may be perpendicular to each other, and the phase retardation value of the separation layer 730 is one half (e.g., 1/2 λ) of the wavelength (e.g., λ) of the incident light. At this time, the slow axis a730 of the separation layer 730 may intersect the polarization direction P610 at an angle θ 2, for example, and the angle θ 2 is substantially 45 degrees. Thus, light having a polarization direction P730 passing through the coated polarizing layer 710 can be converted into a polarization state substantially parallel to the polarization direction P720 after passing through the separation layer 730, and the polarized light can mostly pass through the coated polarizing layer 720. Overall, when the separating layer 630 or the separating layer 730 has optical directionality, the optical directionality of the separating layer (e.g., 630 or 730) and the polarization directions of two adjacent coated polarizing layers, e.g., the coated polarizing layer 610 (or 710) and the coated polarizing layer 620 (or 720), can be adjusted to adjust the light passing through the coated polarizing layer 610 (or 710) after passing through the separating layer 630 (or 730) to pass through the coated polarizing layer 620 (or 720) mostly, so as to reduce the chance of blocking the light.

Fig. 8 is a schematic view of an electronic device according to an embodiment of the disclosure. The electronic device 800 of fig. 8 includes a panel 810, a polarizer 820, and a polarizer 830. The polarizing element 820 is disposed on a first side 810A of the panel 810, the polarizing element 830 is disposed on a second side 810B of the panel 810, and the first side 810A and the second side 810B are opposite to each other. Specifically, the panel 810 includes a first substrate 811, a second substrate 813, a display medium 815, a driving structure layer 817, and a color filter layer 819. The display medium 815 is disposed between the first substrate 811 and the second substrate 813, and the display medium 815 includes a display material capable of adjusting light or emitting light. For example, the display material capable of adjusting light includes liquid crystal, electrophoresis, electrowetting material or other suitable materials, and the display material capable of emitting light includes organic light emitting material, quantum dot material or other suitable materials. In some embodiments (not shown), the electronic device 800 may selectively remove the polarizing element 830 or the polarizing element 820. In some embodiments, the driving structure layer 817 is disposed between the second substrate 813 and the display medium 815, and the color filter layer 819 is disposed between the first substrate 811 and the display medium 815. In some embodiments, the driving structure layer 817 may include an array of active elements or passive elements. In some embodiments, the light polarizing element 820 is disposed between the first substrate 811 and the color filter layer 819. In some embodiments, the polarizer element 830 is disposed between the second substrate 813 and the driving structure layer 817.

In some embodiments, the polarizing element 820 may comprise a multilayer coated polarizing layer 822, or the polarizing element 830 may comprise a multilayer coated polarizing layer 832. The manufacturing method, material and optical properties of the coated polarizing layer 822 and the coated polarizing layer 832 can be described with reference to the coated polarizing layer 122 of fig. 1. In this embodiment, the method for manufacturing the electronic device 800 includes forming a multi-layer coating type polarizing layer 822 on the first substrate 811 by a coating method to complete the polarizing element 820, and then fabricating the color filter layer 819 on the polarizing element 820. Further, a multilayer coating type polarizing layer 832 is formed on the second substrate 813 by a coating method to complete the polarizing element 830, and a driving structure layer 817 is formed on the polarizing element 830. Then, the first substrate 811 and the second substrate 813 are assembled oppositely, and the display medium 815 is disposed between the first substrate 811 and the second substrate 813, so that the polarizer 820 and the polarizer 830 are built in the panel 810 to form the electronic device 800, but not limited thereto. Thus, the polarizer 820 and the polarizer 830 can be disposed inside the panel 810 and located at two opposite sides of the panel 810, i.e., the first side 810A and the second side 810B.

Fig. 9 is a schematic view of an electronic device according to an embodiment of the disclosure. The electronic device 900 of fig. 9 includes a panel 110 and a polarizer 920. The polarizer 920 is disposed on one side of the panel 910, and the polarizer 920 includes a multi-layer coated polarizing layer 922 and a stretched polarizing layer 924, but is not limited thereto. The specific features of the panel 110 can be found in the description of the previous embodiments. The multi-layer coated polarizing layer 922 may be fabricated using the method of fabricating the coated polarizing layer 122 of fig. 1. The stretching type polarization layer 924 is a pre-fabricated film layer, for example, and is disposed on the panel 110 in an attached manner.

The stretched polarizing layer 924 may include a dielectric layer 924B sandwiched between two support films 924A. Dielectric layer 924B may be formed, for example, but not limited to, a polymer material and/or a dye disposed between polymer materials. The dielectric layer 924B is formed by stretching the polymer material so that the dyes between the polymer materials are aligned in the stretching direction, and the two support films 924A can sandwich the dielectric layer 924B to stabilize the state of the dielectric layer 924B. In some embodiments, the dye in dielectric layer 924B may include iodine, but is not limited thereto. Specifically, the method of manufacturing the electronic device 900 includes forming a first layer of the coated polarizing layer 922 on the panel 110 by coating, then attaching the manufactured stretched polarizing layer 924 to the first layer of the coated polarizing layer 922, and then forming a second layer of the coated polarizing layer 922 on the stretched polarizing layer 924 by coating. As such, the polarization function of the polarizer 920 may be provided by the multi-layer coated type polarizing layer 922 and the stretching type polarizing layer 924, but is not limited thereto. In other embodiments, the stacking order of the coating type polarizing layer and the stretching type polarizing layer can be adjusted according to the requirement. In some embodiments, the multilayer coated polarizing layer 922 and the stretched polarizing layer 924 may be in direct contact. In some embodiments, the polarization directions of the multilayer coated polarizing layer 922 and the stretched polarizing layer 924 may be parallel to each other.

Fig. 10 is a schematic view of an electronic device according to an embodiment of the disclosure. The electronic device 1000 of fig. 10 includes a panel 110 and a polarizer 1020. The electronic device 1000 includes substantially all of the components of the electronic device 900, and also includes a multilayer separation layer 926. Here, each separation layer 926 is disposed between one of the coated polarizing layers 922 and the stretched polarizing layer 924. Embodiments of the separation layer 926 may be similar to the separation layer 222 of fig. 2, the separation layer 322 of fig. 3, or the separation layer 422 of fig. 4. In this embodiment, the polarization directions of the coating type polarization layer 922 and the stretching type polarization layer 924 can be adjusted according to the optical properties of the separation layer 926, and the specific adjustment method can be as described with reference to fig. 6 and 7.

In summary, the electronic device according to the embodiment of the disclosure employs a multi-layer coating type polarizing layer to achieve the required polarization. In some embodiments, the multi-layer coated polarizing layer is formed on the panel by coating to improve the fabrication flexibility. Additionally, in some embodiments, the coated polarizing layer directly contacts the panel to help reduce the thickness of the electronic device.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present disclosure, and not to limit the same; while the present disclosure has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the disclosed embodiments.

Claims

1. An electronic device, comprising:

a panel; and

and a polarizing element disposed at one side of the panel, wherein the polarizing element includes a multi-layered coating type polarizing layer.

2. The electronic device of claim 1, wherein the multilayer coated polarizing layers are in contact with each other.

3. The electronic device of claim 2, wherein optical absorption axes of two adjacent coated polarizing layers of the multilayer coated polarizing layers are parallel to each other.

4. The electronic device of claim 2, wherein one of the multilayer coated polarizing layers contacts the panel.

5. The electronic device of claim 1, wherein the polarizer further comprises a separating layer, and wherein the separating layer is disposed between two of the plurality of coated polarizing layers, and wherein the separating layer has no polarizing properties.

6. The electronic device of claim 5, wherein the separation layer comprises a plurality of separation sublayers.

7. An electronic device according to claim 5, wherein the phase retardation value of the separation layer is equal to 0 nm and the optical absorption axis directions of the two of the coated polarizing layers are parallel to each other.

8. The electronic device of claim 5, wherein the separation layer has a phase retardation value not equal to 0 nm, and the optical absorption axis directions of the two coated polarizing layers are parallel to each other or intersect each other.

9. A method of manufacturing an electronic device, comprising:

providing a panel; and

and arranging a polarizing element on one side of the panel, wherein the polarizing element is provided with a plurality of polarizing layers, and the plurality of polarizing layers are formed by a coating process.

10. The electronic device of claim 1, wherein one of the multiple polarizing layers contacts the panel.