Patent ID: 12197056

DETAILED DESCRIPTION OF EMBODIMENT

The implementation of the present disclosure is illustrated by specific embodiments to enable persons skilled in the art to easily understand the other advantages and effects of the present disclosure by referring to the disclosure contained therein. The present disclosure is implemented or applied by other different, specific embodiments. Various modifications and changes can be made in accordance with different viewpoints and applications to details disclosed herein without departing from the spirit of the present disclosure.

It should be noted that, in the specification and claims, unless otherwise specified, having “one” element is not limited to having a single said element, but one or more said elements may be provided. Furthermore, in the specification and claims, unless otherwise specified, ordinal numbers, such as “first”, “second”, etc., used herein are intended to distinguish elements rather than disclose explicitly or implicitly that names of the elements bear the wording of the ordinal numbers. The ordinal numbers do not imply what order an element and another element are in terms of space, time or steps of a manufacturing method.

In the entire specification and the appended claims of the present disclosure, certain words are used to refer to specific components. Those skilled in the art should understand that electronic device manufacturers may refer to the same components by different names. The present disclosure does not intend to distinguish those components with the same function but different names. In the claims and the following description, the words “comprise”, “include” and “have” are open type language, and thus they should be interpreted as meaning “including but not limited to . . . ”. Therefore, when the terms “comprise”, “include” and/or “have” are used in the description of the present disclosure, they specify the existence of corresponding features, regions, steps, operations and/or components, but do not exclude the existence of one or more corresponding features, regions, steps, operations and/or components.

In the description, the terms “almost”, “about”, “approximately” or “substantially” usually means within 10%, 5%, 3%, 2%, 1% or 0.5% of a given value or range. The quantity given here is an approximate quantity; that is, without specifying “almost”, “about”, “approximately” or “substantially”, it can still imply the meaning of “almost”, “about”, “approximately” or “substantially”. In addition, the term “range of the first value to the second value” or “range between the first value and the second value” indicates that the range includes the first value, the second value, and other values in between.

Unless otherwise defined, all terms (including technical and scientific terms) used here have the same meanings as commonly understood by those skilled in the art of the present disclosure. It is understandable that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the relevant technology and the background or context of the present disclosure, rather than in an idealized or excessively formal interpretation, unless specifically defined.

In addition, relative terms such as “below” or “bottom”, and “above” or “top” may be used in the embodiments to describe the relationship between one component and another component in the drawing. It can be understood that, if the device in the drawing is turned upside down, the components described on the “lower” side will become the components on the “upper” side. When the corresponding member (such as a film or region) is described as “on another member”, it may be directly on the other member, or there may be other members between the two members. On the other hand, when a member is described as “directly on another member”, there is no member between the two members. In addition, when a member is described as “on another member”, the two members have a vertical relationship in the top view direction, and this member may be above or below the other member, while the vertical relationship depends on the orientation of the device.

In the present disclosure, the measurement method of thickness may be obtained by using an optical microscope, and the thickness may be obtained by measuring the cross-sectional image in an electron microscope, but it is not limited thereto. In addition, any two values or directions used for comparison may have certain errors. If the first value is equal to the second value, it implies that there may be an error of about 10% between the first value and the second value. If the first direction is perpendicular to the second direction, the angle between the first direction and the second direction may be in a range of 80 to 100 degrees. If the first direction is parallel to the second direction, the angle between the first direction and the second direction may be in a range of 0 to 10 degrees.

It should be noted that the technical solutions provided by the different embodiments described hereinafter may be used interchangeably, combined or mixed to form another embodiment without violating the spirit of the present disclosure.

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

In one embodiment of the present disclosure, as shown inFIG.1, the electronic device may include: a display panel10; and a viewing angle switchable panel20disposed on the display panel10. The display panel may include: a first substrate11; a second substrate12disposed opposite to the first substrate11; and a display medium layer13disposed between the first substrate11and the second substrate12. The viewing angle switchable panel20may include a third substrate21; a fourth substrate22disposed opposite to the third substrate21; and a switching medium layer23disposed between the third substrate21and the fourth substrate22.

In the present disclosure, the first substrate11, the second substrate12, the third substrate21and the fourth substrate22may be manufactured using the same or different materials. The materials of the substrate21and the fourth substrate22may each include glass, quartz, sapphire, ceramics, polycarbonate (PC), polyimide (PI), and polyethylene terephthalate (PET), polymethylmethacrylate (PMMA), other suitable substrate materials or a combination thereof, but the present disclosure is not limited thereto. In the present disclosure, the thicknesses of the first substrate11, the second substrate12, the third substrate21and the fourth substrate22may each be 5 μm to 10000 μm, such as, 5 μm to 25 μm, 5 μm to 50 μm, 5 μm to 100 μm, 5 μm to 200 μm, 5 μm to 300 μm, 5 μm to 500 μm, 5 μm to 1000 μm, 10 μm to 25 μm, 10 μm to 50 μm, 10 μm to 100 μm, 10 μm to 200 μm or 100 μm to 1000 μm, but the present disclosure is not limited thereto. By designing the range of substrate thickness, the present disclosure may achieve the purpose of thinness or light weight for the electronic devices. In one embodiment of the present disclosure, the thickness of at least one of the third substrate21and the fourth substrate22is 5 μm to 100 μm, such as 5 μm to 50 μm. In one embodiment of the present disclosure, the thickness of each of the third substrate21and the fourth substrate22is 5 μm to 100 μm, such as 5 μm to 50 μm. In one embodiment of the present disclosure, the thickness of at least one of the first substrate11and the second substrate12is 5 μm to 100 μm, such as 5 μm to 50 μm. In one embodiment of the present disclosure, the thickness of each of the second substrate12and the third substrate21is 5 μm to 100 μm, such as 5 μm to 50 μm.

In the present disclosure, the display medium layer13may include liquid crystals (LC), quantum dots (QD), fluorescent molecules, phosphors, organic light emitting diodes (OLED), sub-millimeter light emitting diode (mini LED), micro light emitting diode (micro LED), quantum dot light emitting diode (QLED or QD-LED), or a combination thereof, but the present disclosure is not limited thereto.

In the present disclosure, the switching medium layer23may include guest host type liquid crystal (GHLC), dye liquid crystal, twisted nematic liquid crystal (TN LC), super twisted nematic liquid crystal (STN LC), polymer dispersed liquid crystal (PDLC), polymer network liquid crystal (PNLC), cholesteric texture liquid crystal, polymer-stabilized cholesteric texture liquid crystal (PSCT LC), suspended particle material (SPD), electrochromic materials, etc., or a combination thereof, but the present disclosure is not limited thereto.

In the present disclosure, the electronic device may further include a polarizer. As shown inFIG.1, the electronic device may include, for example, a first polarizer31, a second polarizer32, a third polarizer33, and a fourth polarizer34. The display panel10may be disposed between the first polarizer31and the second polarizer32, and the viewing angle switchable panel20may be disposed between the third polarizer33and the fourth polarizer34. The second polarizer32and the third polarizer33may be disposed between the display panel10and the viewing angle switchable panel20. In one embodiment of the present disclosure, although not shown in the figure, the second polarizer32or the third polarizer33may be selectively disposed between the display panel10and the viewing angle switchable panel20. In other words, the electronic device may be selectively not provided with the second polarizer32or the third polarizer33, so that the electronic device may be made thin or lightweight.

In the present disclosure, the electronic device may further include adhesive layers41,42,43,44and45. More specifically, as shown inFIG.1, the adhesive layer41may be disposed between the first polarizer31and the first substrate11, the adhesive layer42may be disposed between the second substrate12and the second polarizer32, the adhesive layer43may be disposed between the second polarizer32and the third polarizer33, the adhesive layer44may be disposed between the third polarizer33and the third substrate21, and the adhesive layer45may be disposed between the fourth substrate22and the fourth polarizer34. The polarizer may be bonded to the substrate or another polarizer through an adhesive layer to form the electronic device of the present disclosure. In one embodiment of the present disclosure, the adhesive layer (e.g., adhesive layers42,43and44) may be disposed between the display panel10and the viewing angle switchable panel20. In the present disclosure, the materials of the adhesive layers41,42,43,44and45are not limited, and may be, for example, glass glue, optical glue, silicone glue, tape, hot melt glue, AB glue, two-component adhesive, polymer glue or a combination thereof, but the present disclosure is not limited thereto.

In addition, in one embodiment of the present disclosure, although not shown in the figure, when the display panel10is such a display panel that requires a backlight (e.g., a liquid crystal display panel), the electronic device of the present disclosure may further include a backlight module, which is disposed below the display panel10, wherein the display panel10is disposed between the backlight module and the viewing angle switchable panel20. The backlight module may include a backlight source, a light guide plate, an optical film, a backlight frame, other elements, or a combination thereof, but the present disclosure is not limited thereto.

In the present disclosure, since the electronic device may include the display panel10, it may be applied to any electronic device that needs a display screen, such as a monitor, a mobile phone, a laptop, a video camera, a still camera, a music player, a mobile navigator, a television set and other electronic devices that display images, but the present disclosure is not limited thereto.

FIG.2is a schematic diagram of an electronic device according to another embodiment of the present disclosure. The electronic device ofFIG.2is similar to that ofFIG.1except for the following differences.

In the present disclosure, when the display medium layer13of the display panel10includes, for example, an organic light emitting diode (OLED) or a light emitting diode (LED), the electronic device may not be provided with the first polarizer31and the second polarizer32, so as to achieve the purpose of thinness and light weight for the electronic device. More specifically, as shown inFIG.2, the electronic device of the present disclosure may include, for example, a third polarizer33and a fourth polarizer34, wherein the third polarizer33is disposed between the display panel10and the viewing angle switchable panel20, the fourth polarizer34is disposed on the fourth substrate22. The third polarizer33and the fourth polarizer34may be respectively bonded to the second substrate12, the third substrate21or the fourth substrate22through adhesive layers (such as the adhesive layers43,44and45). More specifically, the third polarizers33may be bonded to the second substrate12through the adhesive layer43, the third polarizer33may be bonded to the third substrate21through the adhesive layer44, and the fourth polarizer34may be bonded to the fourth substrate22through the adhesive layer45.

FIG.3is a schematic diagram of an electronic device according to still another embodiment of the present disclosure. The electronic device ofFIG.3is similar to that ofFIG.1except for the following differences.

In the present disclosure, as shown inFIG.3, the electronic device may further include a touch sensing layer52disposed on the viewing angle switchable panel20. More specifically, the touch sensing layer52may be disposed on a substrate51to form an out-cell touch sensing panel50, and the out-cell touch sensing panel50may be disposed on the viewing angle switchable panel20. In addition, the fourth polarizer34may be bonded to the on-cell touch sensing panel50through the adhesive layer45. In another embodiment of the present disclosure, although not shown, the touch sensing layer52may also be directly disposed on the fourth substrate22(that is, the substrate51is omitted) so as to form an on-cell touch sensing panel.

In the present disclosure, the material of the substrate51may be as described for the first substrate11, which will not be repeatedly described here. In addition, in the present disclosure, although not shown in the figure, the touch sensing layer52may include elements such as touch sensing units, touch electrodes, wires, etc., but the present disclosure is not limited thereto.

FIG.4is a schematic diagram of a display panel according to an embodiment of the present disclosure. InFIG.4, a liquid crystal display panel is taken as an example, that is, the display medium layer13includes liquid crystals, but the present disclosure is not limited thereto. In other embodiments of the disclosure, the display panel10may also be an organic light emitting diode display panel, inorganic light emitting diode display panel, or other display panels.

In one embodiment of the present disclosure, as shown inFIG.4, the display panel10may include a first substrate11; a second substrate12disposed opposite to the first substrate11; and a display layer14disposed on the inner surface111of the first substrate11; a color filter layer15disposed on the inner surface121of the second substrate12; and a display medium layer13disposed between the display layer14and the color filter layer15.

In the present disclosure, the materials of the first substrate11, the second substrate12and the display medium layer13may be as described above, and will not be repeatedly described here. In the present disclosure, although not shown in the figure, the display layer14may include driving elements, display units, wires, alignment films, other elements or a combination thereof. The color filter layer15may include a black matrix layer, color filter units, electrodes, alignment films, other elements, or a combination thereof. In addition, in another embodiment of the present disclosure, although not shown in the figure, the display layer14and the color filter layer15may both be disposed on the first substrate11to form a thin film transistor substrate integrated with a color filter array.

FIG.5is a schematic diagram of a viewing angle switchable panel according to an embodiment of the present disclosure. In this embodiment, the structure ofFIG.5is taken as an example, but the structure of the viewing angle switchable panel of the present disclosure is not limited thereto.

In one embodiment of the present disclosure, as shown inFIG.5, the viewing angle switchable panel20may include a third substrate21; a fourth substrate22disposed opposite to the third substrate21; and a first insulating layer24disposed on the inner surface211of the third substrate21; a first conductive layer25disposed on the first insulating layer24; a second insulating layer26disposed on the inner surface221of the fourth substrate22; a second conductive layer27disposed on the second insulating layer26; and a switching medium layer23disposed between the first conductive layer25and the second conductive layer27. In the present disclosure, although not shown in the figure, the viewing angle switchable panel20may include alignment films, which are respectively disposed on the first conductive layer25and the second conductive layer27, and the alignment films are disposed adjacent to the switching medium layer23. By applying voltage to the first conductive layer25and the second conductive layer27, the switching medium layer23may be controlled, thereby adjusting the transparency of the viewing angle switchable panel20, so that the viewing angle switchable panel20may achieve the functions of light transmitting, shielding, or privacy, thereby achieving the anti-peep effect of the electronic device.

In the present disclosure, the materials of the third substrate21, the fourth substrate22and the switching medium layer23may be as described above, and will not be repeatedly described here. In the present disclosure, the same or different materials may be used to manufacture the first insulating layer24and the second insulating layer26. The materials of the first insulating layer24and the second insulating layer26may include silicon oxide, silicon nitride, silicon oxynitride or a combination thereof, but the present disclosure is not limited thereto.

In the present disclosure, the same or different materials may be used to manufacture the first conductive layer25and the second conductive layer27. The materials of the first conductive layer25and the second conductive layer27may include metals and metal oxides, alloys thereof or a combination thereof, such as gold, silver, copper, aluminum, chromium, platinum, indium zinc oxide (IZO), indium tin oxide (ITO), indium tin zinc oxide (ITZO), indium gallium zinc oxide (IGZO), aluminum zinc oxide (AZO), or a combination thereof, but the present disclosure is not limited thereto. In the present disclosure, the first conductive layer25and the second conductive layer27may be respectively disposed using a suitable method, such as electroplating, chemical plating, chemical vapor deposition, sputtering, or coating, but the present disclosure is not limited thereto.

FIG.6is a schematic diagram a manufacturing method of an electronic device according to an embodiment of the present disclosure.

In one embodiment of the present disclosure, as shown inFIG.6, a manufacturing method of an electronic device may include the following steps. First, a display panel10and a viewing angle switchable panel20are respectively provided. The display panel10may include: a first substrate11; a second substrate12disposed opposite to the first substrate11; and a display medium layer13disposed between the first substrate11and the second substrate12. The viewing angle switchable panel20may include: a third substrate21; a fourth substrate22disposed opposite to the third substrate21; and a switching medium layer23disposed between the third substrate21and the fourth substrate22.

Next, the display panel10and the viewing angle switchable panel20are bonded together to form an electronic device. In this embodiment, the electronic device ofFIG.1is taken as an example. In other embodiments of the present disclosure, the electronic device may also be as shown inFIG.2orFIG.3, which will not be repeatedly described here.

In more detail, in this embodiment, as shown inFIG.6, the viewing angle switchable panel20may be manufactured through the following steps. First, a first carrier substrate S1and a second carrier substrate S2are respectively provided. In the present disclosure, the first carrier substrate S1and the second carrier substrate S2may be hard substrates, flexible substrates or films, and the materials thereof may include quartz, glass, wafer, sapphire, soft-hard hybrid board, epoxy, polycarbonate (PC), polyimide (PI), polypropylene (PP), polyethylene terephthalate (PET) or other plastic materials, but the present disclosure is not limited thereto.

After that, the third substrate21C is formed on the first carrier substrate S1by a coating method to form a first substrate structure SS1, and the fourth substrate22C is formed on the second carrier substrate S2by a coating method to form a second substrate structure SS2. In the description of the present disclosure, a numeral followed by a mark of C (for example,21C) may represent a film layer formed by the coating method. The thickness of at least one of the third substrate21C and the fourth substrate22C may be 5 μm to 50 μm, but the present disclosure is not limited thereto. Here, the materials of the third substrate21C and the fourth substrate22C may be as described above for the materials of the third substrate21and the fourth substrate22, which will not be repeatedly described here. In addition, the coating method may be, for example, a dip coating method, a spin coating method, a roller coating method, a blade coating method, a spray coating method, or a combination thereof, but the present disclosure is not limited thereto. In one embodiment of the present disclosure, the thicknesses of the third substrate21C and the fourth substrate22C may each be 5 μm to 50 μm.

Next, the first substrate structure SS1and the second substrate structure SS2are combined correspondingly, and the switching medium layer23is formed between the third substrate21C and the fourth substrate22C, wherein the material of the switching medium layer23may be as described above, and will not be repeatedly described here.

Then, by using laser lift off (LLO) technology, the first carrier substrate S1and the third substrate21C in the first substrate structure SS1are separated, and the second carrier substrate S2and the fourth substrate22C in the second substrate structure SS2are separated, so as to form the viewing angle switchable panel20. More specifically, the surface S11of the first carrier substrate S1away from the third substrate21C may be irradiated with laser to form a peelable interface between the first carrier substrate S1and the third substrate21C, so that the first carrier substrate S1is separated from the third substrate21C. Similarly, the surface S21of the second carrier substrate S2away from the fourth substrate22C may be irradiated with laser to form a peelable interface between the second carrier substrate S2and the fourth substrate22C, so that the second carrier substrate S2is separated from the fourth substrate22C. In the present disclosure, the wavelength, irradiation time, etc. of the laser are not particularly limited and may be adjusted as needed.

In the present disclosure, according to the requirement, one or more elements may be provided on the display panel10or the viewing angle switchable panel20, or one or more elements may be provided between the display panel10and the viewing angle switchable panel20, so as to provide the electronic device with one or more effects or functions. For example, before the step of bonding the display panel10and the viewing angle switchable panel20, it may further include a step of disposing a polarizer (such as the second polarizer32and/or the third polarizer33) on the display panel10and the viewing angle switchable panel20. Alternatively, for example, before the step of bonding the display panel10and the viewing angle switchable panel20, it may further include a step of disposing a polarizer (such as the first polarizer31and/or the fourth polarizer34) on the display panel10or the viewing angle switchable panel20. Alternatively, for example, after the step of bonding the display panel10and the switchable viewing angle panel20, it may further include a step of disposing a touch sensing layer52on the viewing angle switchable panel20thereby forming the electronic device as shown inFIG.3.

In the present disclosure, the display panel10or the viewing angle switchable panel20may be processed as needed to improve the electronic device. For example, before the step of bonding the display panel10and the viewing angle switchable panel20, it may further include a step of thinning the first substrate11and/or the second substrate12by using substrate thinning technology, so that the electronic device may be further thinned or lightweight. For example, inFIG.6, the thinned first substrate11may be marked as11T as an example. The substrate thinning technology may be, for example, wet etching, with which the to-be-thinned substrate comes into touch an etching solution for being etched, so as to achieve the effect of substrate thinning, wherein a suitable etching solution may be, for example, hydrofluoric acid, but the present disclosure is not limited thereto.

FIG.7is a schematic diagram of a manufacturing method of an electronic device according to another embodiment of the present disclosure. The manufacturing method ofFIG.7is similar to that ofFIG.6except for the following differences.

In one embodiment of the present disclosure, as shown inFIG.7, the viewing angle switchable panel20may be manufactured through the following steps. First, a first carrier substrate S1is provided. Then, the third substrate21C is formed on the first carrier substrate S1by a coating method to form a first substrate structure SS1. Next, the first substrate structure SS1and the fourth substrate22are combined correspondingly, and the switching medium layer23is formed between the third substrate21C and the fourth substrate22.

In this embodiment, the first carrier substrate S1, the third substrate21C, the fourth substrate22and the switching medium layer23may be as described above, and will not be repeatedly described here. In addition, a suitable coating method may be, for example, dip coating, spin coating, roller coating, blade coating, spray coating, or a combination thereof, but the present disclosure is not limited thereto. In one embodiment of the present disclosure, the thickness of the third substrate21C may be 5 μm to 50 μm. The thickness of the fourth substrate22may be greater than the thickness of the third substrate21C. For example, the thickness of the fourth substrate22may be in the range of 100 μm to 10000 μm, such as 100 μm to 1000 μm.

Then, by using laser lift off technology, the first carrier substrate S1and the third substrate in the first substrate structure SS1are separated21C to form the viewing angle switchable panel20. More specifically, the surface S11of the first carrier substrate S1away from the third substrate21C may be irradiated with laser to form a peelable interface between the first carrier substrate S1and the third substrate21C, so that the first carrier substrate S1may be separated from the third substrate21C. In the present disclosure, the wavelength, irradiation time, etc. of the laser are not particularly limited and may be adjusted as needed.

In one embodiment of the present disclosure, as shown inFIG.7, the display panel10may be manufactured through the following steps. First, a third carrier substrate S3is provided. Then, the second substrate12C is formed on the third carrier substrate S3by a coating method to form a third substrate structure SS3. Next, the third substrate structure SS3and the first substrate11are combined correspondingly, and the display medium layer13is formed between the first substrate11and the second substrate12C.

In this embodiment, the first substrate11, the second substrate12C and the display medium layer13may be as described above, and will not be repeatedly described here. The material of the third carrier substrate S3may be as described for the first carrier substrate S1and the second carrier substrate S2, and will not be repeatedly described here. In addition, a suitable coating method may be, for example, dip coating, spin coating, roller coating, blade coating, spray coating, or a combination thereof, but the present disclosure is not limited thereto. In one embodiment of the present disclosure, the thickness of the second substrate12C may be 5 μm to 50 μm. The thickness of the first substrate11may be greater than the thickness of the second substrate12C. For example, the thickness of the first substrate11may be in the range of 100 μm to 10000 μm, such as 100 μm to 1000 μm.

Then, by using laser lift off technology, the third carrier substrate S3and the second substrate12C in the third substrate structure SS3are separated to form the display panel10. More specifically, the surface S31of the third carrier substrate S3away from the second substrate12C may be irradiated with laser to form a peelable interface between the third carrier substrate S3and the second substrate12C, so that the third carrier substrate S3may be separated from the second substrate12C. In the present disclosure, the wavelength, irradiation time, etc. of the laser are not particularly limited and may be adjusted as needed.

Next, the display panel10and the viewing angle switchable panel20are bonded together to form an electronic device. In this embodiment, the electronic device ofFIG.2is taken as an example. In other embodiments of the present disclosure, the electronic device may be that shown inFIG.1orFIG.3, and thus a detailed description is deemed unnecessary.

In the present disclosure, according to the requirement, one or more elements may be provided on the display panel10or the viewing angle switchable panel20, or one or more elements may be provided between the display panel10and the viewing angle switchable panel20, so as to provide the electronic device with one or more effects or functions. For example, before the step of bonding the display panel10and the viewing angle switchable panel20, it may further include a step of disposing a polarizer (such as the third polarizer33) between the display panel10and the viewing angle switchable panel20. Alternatively, for example, before the step of bonding the display panel10and the viewing angle switchable panel20, it may further include a step of disposing a polarizer (such as the fourth polarizer34) on the viewing angle switchable panel20. Alternatively, for example, after the step of bonding the display panel10and the viewing angle switchable panel20, it may further include a step of disposing a touch sensing layer52(as shown inFIG.3) on the viewing angle switchable panel20, so as to form an electronic devices with touch functions.

In the present disclosure, the display panel10or the viewing angle switchable panel20may be processed as needed to improve the electronic device. For example, after the step of bonding the display panel10and the viewing angle switchable panel20, it may further include a step of thinning the first substrate11and/or the fourth substrate22by using substrate thinning technology, so that the electronic device may be further thinned or lightweight. For example, inFIG.7, the thinned first substrate11may be marked as11T, and the thinned fourth substrate22may be marked as22T. The substrate thinning technology may be wet etching, for example, but the present disclosure is not limited thereto.

According to some embodiments, a layer of substrate in the viewing angle switchable panel may be manufactured by a coating method to obtain a coated substrate with a thickness of 5 μm to 50 μm, while another substrate in the viewing angle switchable panel may be a thicker substrate. In this way, the viewing angle switchable panel still has support, which is convenient for transportation and is not prone to warping problems.

In summary, in the present disclosure, at least one substrate in the viewing angle switchable panel is manufactured by a coating method to obtain a thinner coated substrate. For example, the thickness of a substrate is within the range of 5 μm to 50 μm, thereby achieving the purpose of making the electronic devices thin or lightweight.

The aforementioned specific embodiments should be construed as merely illustrative, and not limiting the rest of the present disclosure in any way, and features of different embodiments may be mixed and matched as long as they do not conflict with each other.