Transparent display device

Abstract

A transparent display device according to an embodiment of the present disclosure includes a substrate including a display area on which a plurality of pixels are disposed, each of the plurality of pixels having a transmissive portion and a plurality of sub-pixels, and a non-display area adjacent to the display area. The transparent display device further includes a plurality of dam regions on the substrate extending from the non-display region to the display region and partially surrounding the display region. A display area surrounded by each of the plurality of dam areas may include a plurality of moisture permeable bypasses.

Description

[0001] Cross - reference to related applications

[0002] This application claims priority to Korean Patent Application No. 10 - 2023 - 0191422, filed in Korea on December 26, 2023, the entire contents of which are hereby incorporated by reference into this application. Technical Field

[0003] The present disclosure relates to a transparent display device. Background Art

[0004] With the development of the information age, the demand for display devices for displaying images has increased in various forms. Accordingly, various types of display devices, such as liquid crystal display (LCD) devices, plasma display panel (PDP) devices, organic light - emitting display (OLED) devices, and quantum dot light - emitting display (QLED) devices, have been used recently.

[0005] In addition, research on transparent display devices through which a user can view an object or background located on the opposite side by passing through the display device is actively underway.

[0006] These transparent display devices are highly likely to be used in various fields because they can be used to view both images and backgrounds. Since transparent display devices have various fields and uses to which they can be applied, they need to be manufactured in various types (or various sizes). However, when transparent display devices are manufactured in various types (or various sizes), there may be limitations in increasing manufacturing costs and production energy due to an increase in the number of processes. In addition, when transparent display devices are manufactured in various types (or various sizes), they may be vulnerable to moisture penetration. Summary of the Invention

[0007] One aspect of the present disclosure aims to provide a transparent display device that can be manufactured in various types (or various sizes).

[0008] One aspect of the present disclosure aims to provide a transparent display device that can reduce production energy.

[0009] One aspect of the present disclosure aims to provide a transparent display device that can be manufactured in various types (or various sizes) and still has reduced or blocked moisture penetration.

[0010] One aspect of the present disclosure aims to provide a transparent display device that can reduce or block moisture penetration even when cut in different directions (or horizontally and vertically).

[0011] The problems to be solved or addressed by the examples of the present disclosure are not limited to those mentioned above, and according to the following description, other unmentioned problems will become apparent to those of ordinary skill in the art to which the technical spirit of the present disclosure pertains.

[0012] A transparent display device according to an embodiment of the present disclosure includes: a substrate including a display area on which a plurality of pixels are disposed and a non-display area surrounding the display area, each of the plurality of pixels having a transmissive portion and a plurality of sub-pixels; and a plurality of dam areas extending from the non-display area to the display area on the substrate and partially surrounding the display area, wherein the display area surrounded by each of the plurality of dam areas includes a plurality of moisture-permeable bypass portions.

[0013] According to one or more aspects of the present disclosure, a transparent display device may include: a substrate including a display area on which a plurality of pixels are disposed and a non-display area surrounding the display area, each of the plurality of pixels having a transmissive portion and a plurality of sub-pixels; a dam area surrounding the display area on the substrate; and a plurality of moisture-permeable bypass portions disposed in the display area surrounded by the dam area.

[0014] According to one or more aspects of the present disclosure, a transparent display device may include: a substrate including a display area on which a plurality of pixels are disposed and a non-display area adjacent to the display area, each of the plurality of pixels having a transmissive portion and a plurality of sub-pixels, wherein the display area includes a plurality of moisture-permeable bypass portions that are spaced apart from each other and at least partially overlap in at least one of a first direction and a second direction different from the first direction.

[0015] The technical benefits of the present disclosure are not limited to those mentioned above, and those skilled in the art can clearly understand other benefits not mentioned above according to the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure. In the drawings:

[0017] Figure 1 is a schematic top view of a transparent display device according to an embodiment of the present disclosure.

[0018] Figure 2 is Figure 1 an enlarged top view of a portion A shown in

[0019] Figure 3 is along Figure 2Schematic cross-sectional view taken along line I-I' shown in

[0020] Figure 4 is Figure 1 An enlarged top view of a part of the first display area in part A shown in

[0021] Figure 5 Is a schematic top view showing an example of a transparent display device according to a comparative example.

[0022] Figure 6 Is a schematic top view showing another example of a transparent display device according to a comparative example.

[0023] Figure 7 is Figure 1 An enlarged top view of part B shown in

[0024] Figure 8 is along Figure 7 Schematic cross-sectional view taken along II-II' shown in

[0025] Figure 9 is Figure 1 An enlarged top view of a part of the second display area in part B shown in

[0026] Figure 10 is along Figure 7 Schematic cross-sectional view taken along line III-III' shown in

[0027] Figure 11 is along Figure 7 Schematic cross-sectional view taken along line IV-IV' shown in

[0028] Figure 12 is along Figure 7 Schematic cross-sectional view taken along line V-V' shown in

[0029] Figure 13 is Figure 1 An enlarged top view of part C shown in

[0030] Figure 14 Is a schematic top view of a transparent display device according to a second embodiment of the present disclosure.

[0031] Figure 15 Is a schematic top view of a transparent display device according to a third embodiment of the present disclosure.

[0032] Figure 16 Is a schematic top view of a transparent display device according to a fourth embodiment of the present disclosure.

[0033] Figure 17It is a schematic top view of a transparent display device according to a fifth embodiment of the present disclosure. Detailed Embodiment

[0034] Now, reference will be made in detail to embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals will be used throughout the drawings to refer to the same or like parts.

[0035] The advantages and features of the present disclosure and the methods for realizing them will be clarified by the embodiments described below with reference to the accompanying drawings. However, the present disclosure can be implemented in different forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Furthermore, the present disclosure is only defined by the scope of the claims.

[0036] The shapes, sizes, ratios, angles, and numbers disclosed in the accompanying drawings for describing the embodiments of the present disclosure are only examples, and thus the present disclosure is not limited to the details shown. Like reference numerals always refer to like elements. In the following description, when a detailed description of a related known function or configuration is determined to unnecessarily obscure the gist of the present disclosure, the detailed description will be omitted.

[0037] When using "comprising", "having", and "including" described in this specification, another part may be added unless "only" is used. Unless otherwise indicated, terms in the singular form may include the plural form.

[0038] When interpreting an element, although not explicitly described, the element is interpreted to include an error range.

[0039] When describing a positional relationship, for example, when the positional relationship between two parts is described as "on...", "above...", "below...", and "next to...", unless "exactly" or "directly" is used, one or more other parts may be provided between the two parts.

[0040] When describing a time relationship, for example, when the time sequence is described as "after...", "afterwards", "next", and "before...", unless "exactly" or "directly" is used, discontinuous cases may be included.

[0041] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another, and may not define an order or sequence. For example, without departing from the scope of the present disclosure, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element.

[0042] In addition, the "X-axis direction", "Y-axis direction", and "Z-axis direction" should not be interpreted only by the geometric relationship of being perpendicular to each other, and may have a broader directionality within the range where the elements of the present disclosure can function.

[0043] The term "at least one" should be understood to include any and all combinations of one or more of the associated listed items. For example, the meaning of "at least one of the first item, the second item, and the third item" represents all combinations of two or more items selected from the first item, the second item, and the third item, as well as the first item, the second item, or the third item.

[0044] As can be fully understood by those skilled in the art, the features of the various embodiments of the present disclosure can be partially or wholly coupled or combined with each other, and can interoperate with each other in various ways and be technically driven. The embodiments of the present disclosure can be executed independently of each other, or can be executed together in a mutually dependent relationship.

[0045] In addition, the term "can" encompasses all meanings and scopes of the term "may". The term "disclosure" is used interchangeably with the term "invention" or encompasses all meanings and scopes of the term "invention".

[0046] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. All components of each display device or apparatus according to all embodiments of the present disclosure are operably coupled and configured.

[0047] Figure 1 is a schematic top view of a transparent display device according to an embodiment of the present disclosure, Figure 2 is Figure 1 an enlarged top view of part A shown in Figure 3 is along Figure 2 a schematic cross-sectional view taken along line I-I' shown in Figure 4 is Figure 1 an enlarged top view of a part of the first display area in part A shown in Figure 5 is a schematic top view showing an example of a transparent display device according to a comparative example, and Figure 6 is a schematic top view showing another example of a transparent display device according to a comparative example.

[0048] Hereinafter, the first direction (e.g., the Y-axis direction) is the vertical direction indicating the direction in which the first line SL1 (e.g., the data line) extends, the second direction (e.g., the X-axis direction) is the horizontal direction indicating the direction in which the second line SL2 (e.g., the gate line GL) extends, and the third direction (e.g., the Z-axis direction) is the thickness direction of the transparent display device 100.

[0049] Now referring to Figures 1 to 4 , the transparent display device 100 according to an embodiment of the present disclosure may include a substrate 110 and a plurality of dam regions 120. The substrate 110 is provided with a display region DA and a non-display region NDA disposed adjacent to the display region DA. A plurality of pixels P may be provided on the substrate 100, and each sub-pixel P has a transmissive portion TA and a plurality of sub-pixels SP. The plurality of dam regions 120 may extend from the non-display region NDA to the display region DA on the substrate 110 and partially surround the display region DA. Here, the display region DA surrounded by each of the plurality of dam regions 120 may include a plurality of moisture-permeable bypass portions 130.

[0050] In one example, each of the plurality of dam regions 120 may be provided as a closed loop. Each of the plurality of dam regions 120 being provided as a closed loop may mean that the display region DA is partially surrounded by the dam region 120, as Figure 1 shown. Thus, the display region DA may be surrounded by the plurality of dam regions 120 having a closed structure and may have a structure divided by cuts between the plurality of dam regions 120.

[0051] For example, as Figure 1 shown, the transparent display device 100 according to an embodiment of the present disclosure may include two dam regions 120, and each of the dam regions 120 may include two display regions DA (or a first display region DA1 and a second display region DA2) having different areas (or sizes). The dam region 120 according to one example is a first region of the substrate 110, for example, a first dam region 121 provided in the left region (or bottom region) of Figure 1 and a second region adjacent to the first region, for example, a second dam region 122 provided in the right region (or top region) of Figure 1 . Here, the substrate 110 may include a reference line AL provided between the first region and the second region. The first region may have the same area as the second region with respect to the reference line AL. That is, the reference line AL may be provided at half of the length of the substrate 110 in the second direction (x-axis direction).

[0052] Referring again to Figure 1, the two display areas DA may include a first display area DA1 and a second display area DA2. Here, the first dam area 121 may be configured to surround the first display area DA1. The second dam area 122 may be configured to surround the second display area DA2. Thus, the display area DA may include the first display area DA1 surrounded by the first dam area 121, the second display area DA2 surrounded by the second dam area 122, and a third display area DA3 between the first display area DA1 and the second display area DA2. As Figure 1 shown, the third display area DA3 may partially overlap with the reference line AL.

[0053] On the other hand, the first display area DA1 (or the first dam area 121) and the second display area DA2 (or the second dam area 122) may be provided with different lengths in a first direction (Y-axis direction) (or vertical direction) and a second direction (X-axis direction) (or horizontal direction), respectively. Thus, when cutting between the two dam areas 120, the transparent display device 100 according to an embodiment of the present disclosure may be divided into two transparent display devices having different areas (or sizes). For example, the transparent display device 100 according to an embodiment of the present disclosure may be divided into a first transparent display device 101 having a first area and a second transparent display device 102 having a second area smaller than the first area. Thus, the transparent display device 100 according to an embodiment of the present disclosure may be provided with a plurality of dam areas 120 such that the display panel can be cut into various sizes and thus can be configured to be manufactured into various types (or various sizes). The display panel may include a substrate 110 and a counter substrate 200 facing and bonded to the substrate 110.

[0054] Two transparent display devices having different areas (or sizes) may be provided when a cutting device such as a laser or a wheel cuts the substrate 110 (or the display panel) along cutting lines provided in two directions, such as in a first direction (Y-axis direction) and a second direction (X-axis direction). Thus, the transparent display device 100 according to an embodiment of the present disclosure may further include a cutting portion CP cut by the cutting device. As Figure 1 shown, according to an example, the cutting portion CP may include a first cutting portion CP1 partially provided along the edge of the first dam area 121 and a second cutting portion CP2 partially provided along the edge of the second dam area 122.

[0055] According to an example, the first cutting part CP1 may include a first cutting line CP1a disposed along a first direction (Y-axis direction) and a second cutting line CP1b disposed along a second direction (X-axis direction) different from the first direction (Y-axis direction). The first cutting line CP1a may be disposed adjacent to a first side 121a of the dam region 120 (or the first dam region 121). In one example, the first side 121a is a side disposed along the Figure 1 vertical direction. The second cutting line CP1b may be disposed adjacent to a second side 121b of the dam region 120 (or the first dam region 121). In one example, the second side 121b is a side disposed along the Figure 1 horizontal direction.

[0056] According to an example, the second cutting part CP2 may include a first cutting line CP2a disposed along a first direction (Y-axis direction) and a second cutting line CP2b disposed along a second direction (X-axis direction) different from the first direction (Y-axis direction). The first cutting line CP2a may be disposed adjacent to a first side 122a of the dam region 120 (or the second dam region 122). In one example, the first side 122a is a side disposed along the Figure 1 vertical direction. The second cutting line CP2b may be disposed adjacent to a second side 122b of the dam region 120 (or the second dam region 122). In one example, the second side 122b is a side disposed along the Figure 1 horizontal direction.

[0057] The first cutting lines CP1a of the first cutting part CP1 and the first cutting lines CP2a of the second cutting part CP2 are the same in that they are disposed along a direction parallel to the first direction (Y-axis direction), but different in that they have different lengths. For example, the first cutting line CP1a of the first cutting part CP1 may be disposed to have a length longer than that of the first cutting line CP2a of the second cutting part CP2.

[0058] The second cutting lines CP1b of the first cutting part CP1 and the second cutting lines CP2b of the second cutting part CP2 are the same in that they are disposed along a direction parallel to the second direction (X-axis direction), but different in that they have different lengths. For example, the second cutting line CP1b of the first cutting part CP1 may be disposed to have a length longer than that of the second cutting line CP2b of the second cutting part CP2.

[0059] The transparent display device 100 according to an embodiment of the present disclosure is configured such that the first transparent display device 101 is manufactured when a cutting device cuts a substrate 110 (or a display panel) along a first cutting line CP1a and a second cutting line CP1b that are provided in different directions. The transparent display device 100 according to an embodiment of the present disclosure is configured such that the second transparent display device 102 is manufactured when a cutting device cuts the substrate 110 (or the display panel) along a first cutting line CP2a and a second cutting line CP2b that are provided in different directions.

[0060] Therefore, the transparent display device 100 according to an embodiment of the present disclosure may be provided with a cutting part CP that is cut by a cutting device without an additional masking process, thereby reducing production energy as compared with transparent display devices produced in various types (or various sizes) through various production processes (or manufacturing processes).

[0061] Even if the transparent display device 100 according to an embodiment of the present disclosure is divided into the first transparent display device 101 and the second transparent display device 102, moisture penetration may be reduced or blocked because the dam regions 120 cover the edges of each of the first transparent display device 101 and the second transparent display device 102 in a closed-loop structure (or a closed structure). Therefore, even if the transparent display device 100 according to an embodiment of the present disclosure is cut (or divided) into a plurality of transparent display devices, the reliability of moisture penetration prevention in each of the plurality of transparent display devices may be improved.

[0062] On the other hand, in the transparent display device 100 according to an embodiment of the present disclosure, the cutting part CP is not formed in the gate driver GD because if the gate driver GD is damaged, the first transparent display device 101 (or the second transparent display device 102) cannot operate. Therefore, the cutting part CP may be provided at a position where the gate driver GD is not damaged.

[0063] In the transparent display device 100 according to an embodiment of the present disclosure, a display area DA (or a first display area DA1 and a second display area DA2) surrounded by each of the plurality of dam regions 120 may include a plurality of moisture-permeable bypass parts 130. Each of the plurality of moisture-permeable bypass parts 130 according to an example may be provided in an island shape. The plurality of moisture-permeable bypass parts 130 may randomly reduce the amount of moisture and / or oxygen penetrating into the inside of the dam regions 120.

[0064] Refer to Figure 2, a plurality of moisture-permeable bypass portions 130 may include a plurality of first moisture-permeable bypass portions 131 disposed in the first display area DA1. Each of the plurality of first moisture-permeable bypass portions 131 may be arranged in an island shape, so that they are spaced apart from each other. For example, each of the plurality of first moisture-permeable bypass portions 131 may be configured as a combination of a "T" and a "T" lying on its right side. Each of the plurality of first moisture-permeable bypass portions 131 may have a shape of a combination of two "T"s, and thus may be represented by a double "T".

[0065] The transparent display device 100 according to an embodiment of the present disclosure has a plurality of first moisture-permeable bypass portions 131 spaced apart from each other, so that moisture and oxygen from the outside can be prevented from penetrating through the first moisture-permeable bypass portions 131. In addition, as Figure 2 shown, the transparent display device 100 according to an embodiment of the present disclosure is arranged such that: the plurality of first moisture-permeable bypass portions 131 are arranged to be spaced apart from each other and overlap in at least one of a first direction (Y-axis direction) and a second direction (X-axis direction) different from the first direction (Y-axis direction), so that the path for external moisture and oxygen to penetrate the organic layer (e.g., Figure 3 the broken organic light-emitting layer 116' shown in) between each of the plurality of first moisture-permeable bypass portions 131 can be extended. Therefore, the transparent display device 100 according to an embodiment of the present disclosure can prevent moisture penetration due to the plurality of moisture-permeable bypass portions 130, or can extend the moisture penetration path, thereby improving reliability.

[0066] Hereinafter, with reference to Figures 1 to 3 , the transparent display device 100 according to an embodiment of the present disclosure will be described in more detail.

[0067] With reference to Figure 1 , the transparent display device 100 according to an embodiment of the present disclosure may include a source driver integrated circuit (hereinafter referred to as an IC) 140, a flexible film 150, and a plurality of circuit boards 160, and a display panel including a substrate 110 having a plurality of gate drivers GD. The plurality of circuit boards 160 may be connected to the timing controller via cables.

[0068] The display panel may include a substrate 110 and a counter substrate 200 ( Figure 3 shown in).

[0069] The substrate 110 may include thin film transistors and may be a transistor array substrate, a lower substrate, a base substrate, or a first substrate. The substrate 110 may be a transparent glass substrate or a transparent plastic substrate. For example, the substrate 110 may be a transparent glass substrate. Hereinafter, the substrate 110 will be defined as the first substrate.

[0070] The opposing substrate 200 may face the first substrate 110 and be joined to the first substrate 110 via a connection member RD ( Figure 3 shown in) and a filling member RF ( Figure 3 shown in). For example, the opposing substrate 200 may have a size smaller than that of the first substrate 110 and may face and be joined to a portion of the first substrate 110 other than the pad portion. The opposing substrate 200 may be an upper substrate, a second substrate, or a package substrate. The opposing substrate 200 may be joined to the first side of the first substrate 110 through a substrate joining process mediated by an adhesive member. Hereinafter, the opposing substrate 200 is defined as the second substrate.

[0071] The transparent display device 100 according to an embodiment of the present disclosure may further include a connection member RD and a filling member RF.

[0072] According to an example, the dam region 120 may include a connection member RD. The connection member RD may be disposed between the first substrate 110 and the second substrate 200. Accordingly, the first substrate 110 and the second substrate 200 may face each other and be joined to each other via the connection member RD. For example, the connection member RD may include a thermosetting transparent adhesive or a photocurable transparent adhesive. The connection member RD may include an absorbent material for absorbing external moisture or humidity that penetrates into the display area DA.

[0073] The connection member RD of the dam region 120 according to an example may be disposed in the non-display area NDA and extend from the non-display area NDA to the display area DA. As Figure 3 shown, the connection member RD may be disposed to fill the gap between the first substrate 110 and the second substrate 200 in the dam region 120. Accordingly, the connection member RD may prevent moisture, etc. from penetrating into the display area DA through the gap between the first substrate 110 and the second substrate 200.

[0074] The filling member RF may be disposed adjacent to the connection member RD. The filling member RF may be disposed to fill the gap between the first substrate 110 and the second substrate 200, thereby supporting the first substrate 110 and the second substrate 200. Accordingly, the filling member RF may prevent the first substrate 110 and the second substrate 200 from being easily deformed by an external force.

[0075] On the other hand, a filling member RF or a connection member RD may be disposed between the organic light-emitting layer 116 formed on the first substrate 110 and the second substrate 200 to prevent external moisture or humidity permeating through the second substrate 200 from reaching the organic light-emitting layer 116. In other words, each of the filling member RF and the connection member RD may have a moisture barrier function. Each of the filling member RF and the connection member RD may further include an absorbent material for absorbing water or moisture to enhance the moisture barrier effect. For example, the absorbent material may be a getter.

[0076] On the other hand, the filling member RF may include a thermosetting transparent adhesive or a photocurable transparent adhesive. In this case, the filling member RF may be used together with the connection member RD to bond the first substrate 110 and the second substrate 200. Therefore, the bonding force between the first substrate 110 and the second substrate 200 can be further improved. Since each of the plurality of dam regions 120 partially surrounds the display region DA, the filling member RF may be disposed to be surrounded by the connection member RD. The connection member RD may overlap with the plurality of pixels P by being partially disposed in the display region DA.

[0077] The connection member RD according to an example may include an opaque material, but is not necessarily limited thereto, and may include a transparent material. The filling member RF according to an example is disposed in the display region DA, and thus it may include a transparent material for enhancing the transmittance of the emitted light.

[0078] Referring again to Figure 1 , the gate driver GD supplies a gate signal to the gate line according to a gate control signal input from the timing controller. When the source driver IC 140 is manufactured as a driving chip, the source driver IC 140 may be encapsulated in the flexible film 150 by a chip on film (COF) method or a chip on plastic (COP) method.

[0079] Pads such as power pads and data pads may be formed in the non-display region of the display panel. The lines connecting the pads to the source driver IC 140 and the lines connecting the pads to the circuit board 160 may be formed in the flexible film 150. The flexible film 150 may be attached to the pads by using an anisotropic conductive film, whereby the pads may be connected to the lines of the flexible film 150.

[0080] The first substrate 110 according to an example may include a display region DA and a non-display region NDA.

[0081] The display region DA is a region for displaying an image, and may be a pixel array region, an active region, a pixel array unit, a display unit, or a screen. For example, the display region DA may be disposed at the central portion of the display panel (or the first substrate 110).

[0082] According to an example, a display area DA may include gate lines, data lines, pixel driving power lines, and a plurality of pixels P. Each of the plurality of pixels P may include a plurality of sub-pixels SP and a transmissive portion TA ( Figure 2 as shown in). The plurality of sub-pixels SP may be defined by the gate lines and the data lines. The transmissive portion TA is disposed adjacent to the plurality of sub-pixels SP. The transmissive portion TA is an area configured to allow light to pass through the front and rear sides of the display panel. Accordingly, a user located on the front side of the display panel may view an image, a background, etc. located on the rear side of the display panel through the transmissive portion TA.

[0083] Referring to Figure 2 , each of the plurality of sub-pixels SP may be defined as an area of a minimum unit that emits actual light.

[0084] According to one example, at least four sub-pixels SP and one transmissive portion TA that are adjacent to each other among the plurality of sub-pixels SP constitute one unit pixel P. One unit pixel may include a red pixel, a green pixel, a blue pixel, a white pixel, and the transmissive portion TA, but is not limited thereto. In one example, one unit pixel may include at least one red pixel, at least one green pixel, at least one blue pixel, at least one white pixel, and at least one transmissive portion TA.

[0085] In another example, three sub-pixels SP and one transmissive portion TA that are adjacent to each other among the plurality of sub-pixels SP constitute one unit pixel. One unit pixel may include, but is not limited to, at least one red pixel, at least one green pixel, at least one blue pixel, and one transmissive portion TA.

[0086] Each of the plurality of sub-pixels SP may include a thin film transistor and a light emitting portion connected to the thin film transistor. The light emitting portion may include a light emitting element layer (or an organic light emitting layer) disposed between an anode electrode (or a first electrode) and a cathode electrode (or a second electrode).

[0087] The light emitting element layers respectively provided in the plurality of sub-pixels SP may emit light of their respective different colors separately, or may emit white light together. According to an example, when the light emitting element layers of the plurality of sub-pixels SP emit white light together, each of the red sub-pixel, the green sub-pixel, and the blue sub-pixel may include a color filter (or a wavelength conversion member) for converting the white light into light of their respective different colors. In this case, according to an example, the white sub-pixel may not include a color filter. In a transparent display device 100 according to an embodiment of the present disclosure, the red sub-pixel may be a first sub-pixel SP1, the white sub-pixel may be a second sub-pixel SP2, the green sub-pixel may be a third sub-pixel SP3, and the blue sub-pixel may be a fourth sub-pixel SP4.

[0088] When a gate signal is input from a gate line by using a thin film transistor, each of the sub-pixels SP supplies a predetermined current to the organic light emitting element according to the data voltage of the data line. To this end, the light emitting part of each of the sub-pixels may emit light with a predetermined brightness according to the predetermined current. The structure of each of the sub-pixels SP will be described later with reference to Figure 3 the structure of each of the sub-pixels SP.

[0089] The non-display area NDA may be an area where an image is not displayed, and may be a peripheral circuit area, a signal supply area, a non-active area, or a border area. The non-display area NDA may be configured to surround the display area DA. That is, the non-display area NDA may be provided to surround the display area DA.

[0090] The transparent display device 100 according to an embodiment of the present disclosure may include a plurality of gate drivers GD provided in the non-display area NDA. The plurality of gate drivers GD may be provided parallel to the first direction (Y-axis direction) or the second direction (X-axis direction). By way of example, the transparent display device 100 in which a plurality of gate drivers GD are provided to extend along the first direction (Y-axis direction) according to an embodiment of the present disclosure will be described.

[0091] As Figure 1 shown, the plurality of gate drivers GD may be provided in the non-display area NDA in the first direction (Y-axis direction). The plurality of gate drivers GD may be provided in parallel with the display area DA disposed therebetween.

[0092] Each of the plurality of gate drivers GD supplies a gate signal to the gate line according to a gate control signal input from a timing controller connected to the plurality of circuit boards 160. As Figure 1 shown, each of the plurality of gate drivers GD may be formed in the non-display area NDA on either outer side of the display area DA in a gate-in-panel (GIP) driver manner. Alternatively, the plurality of gate drivers GD may be made of driver chips, mounted on a flexible film, and attached to the non-display areas NDA on both outer sides of the display area DA of the display panel by a tape automated bonding (TAB) method. A gate driver GD according to an example may include a plurality of gate driver circuits (or GIP circuits) and a plurality of GIP wirings. The GIP wirings may include a plurality of signal wirings and a plurality of power wirings in one example.

[0093] The plurality of gate drivers GD may be respectively provided in the second non-display area NDA2 on the left side of the display area DA and the third non-display area NDA3 on the right side of the display area DA. According to an example, the plurality of gate drivers GD may be connected to a plurality of pixels P and a plurality of wirings (or a plurality of second lines SL2) for supplying power and / or signals to each of the plurality of pixels P. As Figure 1As shown, the transparent display device 100 according to an embodiment of the present disclosure may further include a plurality of first lines SL1 intersecting a plurality of second lines SL2.

[0094] The plurality of second lines SL2 may extend in a second direction (X-axis direction). Each of the plurality of second lines SL2 may include at least one gate line GL (or scan line GL). The second direction (X-axis direction) may refer to a direction parallel to the gate line GL.

[0095] Hereinafter, when the second line SL2 includes a plurality of lines, one second line SL2 may refer to a set of signal lines including a plurality of lines. For example, when the second line SL2 includes two scan lines, one second line SL2 may refer to a set of signal lines including two scan lines.

[0096] The plurality of first lines SL1 may extend in a first direction (Y-axis direction). The plurality of first lines SL1 may intersect the plurality of second lines SL2. Each of the plurality of first lines SL1 may be connected to at least one of a plurality of pads, a pixel power shorting bar EVDD, and a common power shorting bar EVSS provided in the first non-display area NDA1. The pixel power supply shorting bar EVDD and the common power supply shorting bar EVSS may be provided in the first non-display area NDA1 between the pad area PA and the display area DA and in the fourth non-display area NDA4 provided to face the pad area PA with respect to the display area DA. The first direction (X-axis direction) may be a direction parallel to the data line.

[0097] The pixel power supply shorting bar EVDD may include a first pixel power supply shorting bar EVDD1 provided in the first non-display area NDA1 and a second pixel power supply shorting bar EVDD2 provided in the fourth non-display area NDA4. The first pixel power shorting bar EVDD1 and the second pixel power shorting bar EVDD2 may be provided parallel to the second direction (X-axis direction), with the display area DA therebetween.

[0098] The common power supply shorting bar EVSS may include a first common power supply shorting bar EVSS1 provided in the first non-display area NDA1 and a second common power supply shorting bar EVSS2 provided in the fourth non-display area NDA4. The first common power supply shorting bar EVSS1 and the second common power supply shorting bar EVSS2 may be provided parallel to the second direction (X-axis direction), with the display area DA therebetween. According to an example, the first common power supply shorting bar EVSS1 and the second common power supply shorting bar EVSS2 may be provided closer to the edge of the first substrate 110 than the first pixel power supply shorting bar EVDD1 and the second pixel power supply shorting bar EVDD2.

[0099] A plurality of first lines SL1 may include a pixel power line connected to a pixel power short circuit bar EVDD and a common power line connected to a common power short circuit bar EVSS. In one embodiment, the plurality of first lines SL1 may further include a plurality of data lines and reference lines.

[0100] Hereinafter, when the first line SL1 includes a plurality of lines, one first line SL1 may refer to a signal line group including a plurality of lines. For example, when the first line SL1 includes two data lines, a pixel power line, a common power line, and a reference line, one first line SL1 may refer to a group of signal lines including two data lines, a pixel power line, a common power line, and a reference line.

[0101] The pixel P is arranged to overlap at least one of the first line SL1 and the second line SL2, and emits predetermined light to display an image. The light emitting area EA may correspond to an area where the pixel P emits light.

[0102] Referring to Figure 2 , each of the pixels P may include a first sub-pixel SP1, a second sub-pixel SP2, a third sub-pixel SP3, and a fourth sub-pixel SP4. The first sub-pixel SP1 may be configured to include a first light emitting area EA that emits red light, the second sub-pixel SP2 may be configured to include a second light emitting area that emits white light, the third sub-pixel SP3 may be configured to include a third light emitting area that emits green light, and the fourth sub-pixel SP4 may be configured to include a fourth light emitting area that emits blue light. In Figure 2 , the first to fourth sub-pixels SP1, SP2, SP3, SP4 included in one pixel P are shown arranged along a first direction (Y-axis direction), but the arrangement order of each of the sub-pixels SP1, SP2, SP3, SP4 may vary.

[0103] Since the transparent display device 100 according to an embodiment of the present disclosure is configured such that the light emitting element emits white light, the second sub-pixel SP2, which is a white sub-pixel as shown in Figure 2 , may not be provided with a color filter. On the other hand, the first sub-pixel SP1 may be provided with a Figure 3 red color filter 210 as shown in, so as to emit red light, the third sub-pixel SP3 may be provided with a green color filter so as to emit green light, and the fourth sub-pixel SP4 may be provided with a blue color filter so as to emit blue light.

[0104] Hereinafter, with reference to Figure 2 and Figure 3 , the pixel P of the transparent display device 100 according to an embodiment of the present disclosure will be described.

[0105] Referring to Figure 2 and Figure 3, each of the plurality of pixels P disposed in the display area DA may include a plurality of sub-pixels SP and a transmissive portion TA. The transmissive portion TA may be disposed adjacent to each of the plurality of sub-pixels SP, as Figure 2 shown. As Figure 3 shown, the connection member RD may be disposed in the sub-pixel SP disposed in the dam area 120. In addition, the filling member RF may be disposed in the sub-pixel SP disposed in the display area DA other than the dam area 120. However, as Figure 3 shown, both the filling member RF and the connection member RD may not be disposed in the area where the cutting portion CP is provided. Since the transparent display device 100 according to an embodiment of the present disclosure is configured such that both the filling member RF and the connection member RD are not formed in the cutting portion CP. Therefore, the transparent display device 100 according to an embodiment of the present disclosure can not only reduce the manufacturing cost due to material savings, but also reduce the defect rate because the area where the filling member RF and the connection member RD are not provided is cut, and thus can facilitate cutting.

[0106] Referring again to Figure 3 , each of the plurality of sub-pixels SP may be disposed on the first substrate 110 and may include a buffer layer BL for preventing moisture penetration into the thin film transistor 112.

[0107] In addition, each of the sub-pixels SP according to an embodiment of the present disclosure includes an inorganic layer 111, a planarization layer 113 disposed on the inorganic layer 111, an anode electrode 114 (or a first electrode 114) disposed on the planarization layer 113, a bank 115, an organic light emitting layer 116, a cathode electrode 117 (or a second electrode 117), and a encapsulation layer 118. The inorganic layer 111 is disposed on the upper surface of the buffer layer BL and includes a gate insulating layer 111a, an interlayer insulating layer 111b, a first passivation layer 111c, and a second passivation layer 111d.

[0108] The inorganic layer 111 may be provided with a thin film transistor 112 for driving the sub-pixel SP. The inorganic layer 111 may also be represented by a circuit element layer. The buffer layer BL may be included in the inorganic layer 111 together with the gate insulating layer 111a, the interlayer insulating layer 111b, the first passivation layer 111c, and the second passivation layer 111d. The anode electrode 114, the organic light emitting layer 116, and the cathode electrode 117 may be included in the light emitting element.

[0109] A buffer layer BL may be formed between the first substrate 110 and the gate insulating layer 111a to protect the thin film transistor 112. Between the buffer layer BL and the first substrate 110, a pixel power line EVDD or a wiring LS electrically connected to the pixel power line EVDD may be provided. The buffer layer BL may be entirely disposed on one surface (or the front surface) of the first substrate 110. The buffer layer BL may be used to prevent materials contained in the first substrate 110 from diffusing into the transistor layer during the high-temperature process in the manufacturing process of the thin film transistor. Optionally, the buffer layer BL may be omitted according to circumstances.

[0110] The thin film transistor 112 according to the example may include an active layer 112a, a gate electrode 112b, a source electrode 112c, and a drain electrode 112d.

[0111] The active layer 112a may include a channel region, a drain region, and a source region, which are formed in the thin film transistor region of the circuit region of the pixel P. The drain region and the source region may be spaced apart from each other, with the channel region therebetween.

[0112] The active layer 112a may be formed of a semiconductor material based on any one of amorphous silicon, polycrystalline silicon, oxide, and organic material.

[0113] The gate insulating layer 111a may be formed on the channel region of the active layer 112a. As an example, the gate insulating layer 111a may be formed in an island shape only on the channel region of the active layer 112a, or may be formed on the entire front surface of the first substrate 110 including the active layer 112a or the buffer layer BL.

[0114] The gate electrode 112b may be formed on the gate insulating layer 111a to overlap with the channel region of the active layer 112a.

[0115] The interlayer insulating layer 111b may be formed on the gate electrode 112b and the drain region and the source region of the active layer 112a. The interlayer insulating layer 111b may be formed in the circuit region and the entire light-emitting region where light is emitted to the pixel P. For example, the interlayer insulating layer 111b may be made of an inorganic material, but is not necessarily limited thereto.

[0116] The source electrode 112c may be electrically connected to the source region of the active layer 112a through a source contact hole provided in the interlayer insulating layer 111b overlapping with the source region of the active layer 112a. In addition, the source electrode 112c may be connected to the wiring LS electrically connected to the pixel power line EVDD through a contact hole provided in the interlayer insulating layer 111b not overlapping with the source region of the active layer 112a and the buffer layer BL. The source electrode 112c may be connected to the anode electrode 114 via a connection electrode CE penetrating the first passivation layer 111c.

[0117] The drain electrode 112d can be electrically connected to the drain region of the active layer 112a through a drain contact hole provided in the interlayer insulating layer 111b that overlaps with the drain region of the active layer 112a.

[0118] The drain electrode 112d and the source electrode 112c can be made of the same metal material. For example, each of the drain electrode 112d and the source electrode 112c can be made of a single metal layer, a single-layer alloy, or a multi-layer of two or more layers that is the same as or different from the layer of the gate electrode.

[0119] In addition, the circuit region may further include a capacitor and a first switching thin film transistor and a second switching thin film transistor provided together with the thin film transistor 112. Since each of the first switching thin film transistor and the second switching thin film transistor is provided on the circuit region of the pixel P to have the same structure as that of the thin film transistor 112, its description will be omitted. The capacitor can be provided in the overlapping region between the gate electrode 112b and the source electrode 112c of the thin film transistor 112, where the gate electrode 112b and the source electrode 112c overlap each other, and the interlayer insulating layer 111b is disposed therebetween.

[0120] In addition, in order to prevent the threshold voltage of the thin film transistor provided in the pixel region from shifting due to light, the display panel or the first substrate 110 may further include a light-shielding layer provided below the active layer 112a of at least one of the thin film transistor 112, the first switching thin film transistor, or the second switching thin film transistor. The light-shielding layer can be provided between the first substrate 110 and the active layer 112a to block the light incident on the active layer 112a through the first substrate 110, thereby minimizing the change in the threshold voltage of the transistor caused by external light.

[0121] The first passivation layer 111c can be provided between the first substrate 110 and the planarization layer 113. According to one example, the first passivation layer 111c covers the drain electrode 112d and the source electrode 112c of the thin film transistor 112 and the interlayer insulating layer 111b. The first passivation layer 111c can be formed in the entire circuit region and the light-emitting region.

[0122] The second passivation layer 111d can be provided on the first substrate 110 to cover the pixel (or the light-emitting region EA). For example, the second passivation layer 111d can be provided to cover the connection electrode CE between the first passivation layer 111c and the planarization layer 113. The first passivation layer 111c can be formed in the entire circuit region and the light-emitting region.

[0123] The planarization layer 113 may be disposed on the first substrate 110 to cover the second passivation layer 111d. When the second passivation layer 111d is omitted, the planarization layer 113 may be disposed on the first substrate 110 to cover the circuit region. The planarization layer 113 may be formed in the entire circuit region and the light-emitting region. In addition, the planarization layer 113 may be formed in the entire display region DA and the non-display region NDA except for the pad region PA. For example, the planarization layer 113 may include an extension (or extensions) extending from the display region DA toward the remaining portion of the non-display region NDA except for the pad region PA. Therefore, the planarization layer 113 may have a relatively larger size than the display region DA.

[0124] The planarization layer 113 according to the example may be formed to be relatively thick and thus may provide a flat surface on the display region DA and the non-display region NDA. For example, the planarization layer 113 may be made of an organic material such as photoacrylic acid, benzocyclobutene, polyimide, and fluororesin.

[0125] The anode electrode 114 of the sub-pixel SP may be formed on the planarization layer 113. The anode electrode 114 is connected to the source electrode or the drain electrode of the thin-film transistor 112 by being connected to the connection electrode CE through a contact hole passing through the planarization layer 113 and the second passivation layer 111d.

[0126] The anode electrode 114 may be made of at least one of a transparent metal material, a semi-transmissive metal material, and a metal material having a high reflectivity.

[0127] When the transparent display device 100 is set in the top-emission mode, the anode electrode 114 may be formed of a metal material having a high reflectivity or a stacked structure of a metal material having a high reflectivity and a transparent metal material. For example, the anode electrode 114 may be formed of a stacked structure of a metal material having a high reflectivity such as a stacked structure of titanium and aluminum (Ti / Al / Ti), a stacked structure of aluminum and ITO (ITO / Al / ITO), an Ag alloy, and a stacked structure of an Ag alloy and ITO (ITO / Ag alloy / ITO). The Ag alloy may be an alloy such as silver (Ag), palladium (Pd), and copper (Cu).

[0128] When the transparent display device 100 is set in the bottom-emission mode, the anode electrode 114 may be formed of a transparent conductive material (TCO) such as ITO and IZO that can transmit light, or a semi-transmissive conductive material such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag).

[0129] Meanwhile, the material constituting the anode electrode 114 may include MoTi. The anode electrode 114 may be the first electrode or the pixel electrode.

[0130] The bank 115 is a non-light-emitting area that does not emit light and can be provided to surround each of the light-emitting areas of the plurality of sub-pixels SP. That is, the bank 115 can separate (or define) the corresponding light-emitting area EA.

[0131] The bank 115 can be formed on the planarization layer 113 to cover the edge of the anode electrode 114, thereby separating (or defining) the light-emitting areas EA (or light-emitting portions) of the plurality of sub-pixels SP.

[0132] The bank 115 can be formed to cover the edge of each of the anode electrodes 114 included in each of the sub-pixels SP and expose a part of each of the anode electrodes 114. Thus, the bank 115 can cover one end of each of the anode electrodes 114, thereby preventing a short circuit between the anode electrode 114 and the cathode electrode 117. The exposed portion of the anode electrode 114 that is not covered by the bank 115 can be the light-emitting area EA (or light-emitting portion).

[0133] The bank 115 can be formed of an organic layer such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, and a polyimide resin, but is not limited thereto.

[0134] The organic light-emitting layer 116 is formed on the anode electrode 114 and the bank 115. When a voltage is applied between the anode electrode 114 and the cathode electrode 117, holes and electrons migrate to the organic light-emitting layer 116, respectively, and they combine with each other in the organic light-emitting layer 116 to emit light.

[0135] The organic light-emitting layer 116 can be formed of the plurality of sub-pixels SP and a common layer provided on the bank 115. In this case, the organic light-emitting layer 116 can be provided in a tandem structure in which a plurality of light-emitting layers such as a yellow-green light-emitting layer and a blue light-emitting layer are stacked, and can emit white light when an electric field is formed between the anode electrode 114 and the cathode electrode 117.

[0136] A color filter 210 suitable for the color of the corresponding sub-pixel SP can be formed on the second substrate 200. For example, a red color filter can be provided in a red sub-pixel, a green color filter can be provided in a green sub-pixel, and a blue color filter can be provided in a blue sub-pixel. The white sub-pixel may not include a color filter because the organic light-emitting layer 116 emits white light.

[0137] The cathode electrode 117 is formed on the organic light-emitting layer 116. The cathode electrode 117 can be a common layer formed in common in the sub-pixels SP. The cathode electrode 117 can be made of a transparent metal material, a semi-transmissive metal material, or a metal material having a high reflectivity.

[0138] When the transparent display device 100 is set in a top emission mode, the cathode electrode 117 may be formed of a transparent conductive material (TCO) such as ITO and IZO that can transmit light, or formed of a semi-transmissive conductive material such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag).

[0139] When the transparent display device 100 is set in a bottom emission mode, the cathode electrode 117 may be formed of a stacked structure of metal materials having a high reflectivity such as a stacked structure of titanium and aluminum (Ti / Al / Ti), a stacked structure of aluminum and ITO (ITO / Al / ITO), an Ag alloy, and a stacked structure of an Ag alloy and ITO (ITO / Ag alloy / ITO). The Ag alloy may be an alloy of silver (Ag), palladium (Pd), copper (Cu), etc. The cathode electrode 117 may be the second electrode or the counter electrode.

[0140] The encapsulation layer 118 is formed on the cathode electrode 117. The encapsulation layer 118 is used to prevent oxygen or water from penetrating into the organic light-emitting layer 116 and the cathode electrode 117. To this end, the encapsulation layer 118 may include at least one organic layer and at least one inorganic layer.

[0141] In the transparent display device 100 according to an embodiment of the present disclosure, the encapsulation layer 118 may be provided in both the non-display area NDA and the display area DA. According to an example, the encapsulation layer 118 may be provided between the cathode electrode 117 (and / or the buffer layer BL) and the second substrate 200.

[0142] Since the encapsulation layer 118 is provided in the display area DA and extends into the non-display area NDA, the encapsulation layer 118 may contact the dam area 120 in the non-display area NDA (or on the periphery) of the display panel. In addition, since the transparent display device 100 according to an embodiment of the present disclosure includes a dam area 120 provided in the display area DA and extending to a part of the display area DA, the encapsulation layer 118 may contact the dam area 120 (or the connection member RD included in the dam area 120) even in the display area DA.

[0143] Therefore, the transparent display device 100 according to an embodiment of the present disclosure can prevent moisture from penetrating toward the display area DA, and can effectively prevent moisture from penetrating toward the display area DA even when it is divided into multiple blocks through the cutting portion CP.

[0144] Referring again to Figure 3 , the color filter 210 and the black matrix 220 may be provided between the encapsulation layer 118 and the second substrate 200. In one example, the color filter 210 may be provided on the second substrate 200 (or the opposite substrate) corresponding to each of the plurality of sub-pixels SP (or the plurality of light-emitting areas EA).

[0145] As described above, since the organic light-emitting layer 116 emits white light, the white sub-pixel, i.e., the second sub-pixel SP2, may not be provided with a color filter. On the other hand, the red sub-pixel, i.e., the first sub-pixel SP1, may be provided with a color filter 210 between the encapsulation layer 118 and the second substrate 200.

[0146] As Figure 3 shown, the black matrix 220 may be provided at the edge of the color filter 210. Thus, the black matrix 220 can prevent color mixing between the sub-pixels SP. The black matrix 220 may include a black-based material and may be provided in the non-light-emitting area NEA. In one example, the black matrix 220 may be formed on the second substrate 200 and at least partially overlap the bank 115, thereby reducing the cell gap between the organic light-emitting layer 116 and the second substrate 100, thereby preventing mixing between the sub-pixels.

[0147] The transparent display device 100 according to an embodiment of the present disclosure may provide a plurality of dam regions 120 on the first substrate 110, and the plurality of dam regions 120 are N in number (N is an integer greater than 1). For example, as Figure 1 shown, the transparent display device 100 according to an embodiment of the present disclosure may include a first dam region 121 and a second dam region 122. Each of the first dam region 121 and the second dam region 122 may be configured in a closed-loop shape (or closed form) that encloses different areas of the display area DA. However, it is not limited thereto, and each of the first dam region 121 and the second dam region 122 may be configured in a closed-loop shape (or closed shape) that encloses the same area of the display area DA as each other.

[0148] Referring to Figure 1 and Figure 2 , the transparent display device 100 according to an embodiment of the present disclosure may further include a cutting portion CP provided between the N dam regions 120. The cutting portion CP according to an example may be a portion cut by a cutting device such as a laser or a wheel. Thus, when the cutting portion CP is cut by the cutting device, the transparent display device 100 according to an embodiment of the present disclosure may be divided into a first transparent display device 101 and a second transparent display device 102. In Figure 1 , a transparent display device 100 configured to be divided into two transparent display devices having different areas (or different horizontal lengths and vertical lengths) according to an embodiment of the present disclosure is shown, but it is not limited thereto, and the transparent display device 100 may be configured to be divided into two transparent display devices having the same area (or size).

[0149] Referring to Figure 1As an example, a transparent display device 100 according to an embodiment of the present disclosure may be configured to be divided into a first transparent display device 101 and a second transparent display device 102. The first transparent display device 101 includes a first region formed by a first cutting part CP1, and the second transparent display device 102 includes a second region smaller than the first region formed by a second cutting part CP2. A third transparent display device 103 between the first transparent display device 101 and the second transparent display device 102 does not have a gate driver GD capable of driving a display region DA, and thus cannot be used as a transparent display device. However, not limited thereto, if the gate driver GD can be connected to the third transparent display device 103, the third transparent display device 103 can be used as a transparent display device.

[0150] On the other hand, when the third transparent display device 103 cannot be used as a transparent display device, the filling member RF and the connection member RD may not be provided in the region (or the third display region DA3) of the third transparent display device 103 located between the first transparent display device 101 and the second transparent display device 102. Therefore, the transparent display device 100 according to an embodiment of the present disclosure may have a reduced manufacturing cost because the filling member RF and the connection member RD are not formed in the region that cannot be used as a transparent display device, and may have a reduced defect rate because the region where the filling member RF or the connection member RD is not provided can be cut, and the cutting can be facilitated.

[0151] Therefore, the transparent display device 100 according to an embodiment of the present disclosure may be provided with a plurality of dam regions 120 corresponding to the number of the plurality of gate drivers GD. Therefore, the transparent display device 100 according to an embodiment of the present disclosure may be configured to be divided into as many transparent display devices as the number of the plurality of gate drivers GD (or the number of the plurality of dam regions 120).

[0152] Referring again to Figure 1 , in the transparent display device 100 according to an embodiment of the present disclosure, each of the plurality of gate drivers GD may be disposed in a non-display region NDA along a first direction (Y-axis direction). Here, the first cutting line CP1a of the first cutting part CP1 may be configured to be disposed parallel to the direction in which the gate driver GD extends. The second cutting line CP1b of the first cutting part CP1 is in a direction different from the direction in which the gate driver GD is disposed, for example, it may be configured along a second direction (X-axis direction). However, the second cutting line CP1b may be configured such that the second cutting line CP1b does not contact the gate driver GD. This is because if the second cutting line CP1b is disposed in a direction intersecting the gate driver GD, the gate driver GD may be damaged by a cutting device and thus cannot operate as a transparent display device.

[0153] Thus, in the transparent display device 100 according to an embodiment of the present disclosure, the first cutting portion CP1 may be disposed on the substrate 110 so as not to damage the gate driver GD. For example, as Figure 1 shown, the first cutting portion CP1 may be disposed between the two gate drivers GD1 and GD2 in the first direction (Y-axis direction) and the second direction (X-axis direction). Thus, the transparent display device 100 according to an embodiment of the present disclosure may be cut by a cutting device in the first direction (Y-axis direction) and the second direction (X-axis direction), and thus may be configured to be correspondingly divided into a first transparent display device 101 and a second transparent display device 102 having different horizontal lengths and vertical lengths. The first transparent display device 101 may include the uncut first gate driver GD1. In addition, the second transparent display device 102 may include the uncut second gate driver GD2. However, it is not necessarily limited thereto, and the gate driver GD may be cut according to a change in circuit design. In this case, the first gate driver GD1 and the first display area DA1 may be provided with the same vertical length (or the length in the first direction (Y-axis direction)), so that the first transparent display device 101 may be compactly arranged. In addition, since the second gate driver GD2 and the second display area DA2 may be provided with the same vertical length (or the length in the first direction (Y-axis direction)), the second transparent display device 102 may be compactly arranged.

[0154] On the other hand, the second cutting portion CP2 is disposed along a part of the edge of the second dam area 122 surrounding the second display area DA2, and is the same as the first cutting portion CP1 described above except that the horizontal length and the vertical length are different from those of the first cutting portion CP1, and thus its description will be omitted.

[0155] As Figure 1 shown, the cutting portion CP is configured in the vertical direction and the horizontal direction (or a direction combining the vertical direction and the horizontal direction), and thus it may be represented by a multi-directional cutting line. Alternatively, the cutting portion CP is a part that cuts the transparent display device 100 in a combined direction of two directions (for example, the vertical direction and the horizontal direction), and thus may be represented by a bi-directional cutting line.

[0156] On the other hand, the transparent display device 100 according to an embodiment of the present disclosure may be provided with only one cutting portion CP, but is not limited thereto, and may be provided with two cutting portions CP, as Figure 1As shown. For example, the cutting part CP may include a first cutting part CP1 and a second cutting part CP2. The first cutting part CP1 is disposed between the first transparent display device 101 and the third transparent display device 103, and the second cutting part CP2 is disposed between the third transparent display device 103 and the second transparent display device 102.

[0157] When the cutting device cuts the first cutting part CP1 and the second cutting part CP2, one transparent display device can be divided into three transparent display devices, and the first transparent display device 101 including the first gate driver GD1 and the second transparent display device 102 including the second gate driver GD2 can be used as separate transparent display devices with different areas (or lateral length and longitudinal length). The third transparent display device 103 disposed between the first cutting part CP1 and the second cutting part CP2 does not have a gate driver and thus cannot be used as a transparent display device. However, as described above, if a gate driver can be connected to the third transparent display device 103, it can be used as a transparent display device.

[0158] Referring to Figure 1 , in the transparent display device 100 according to an embodiment of the present disclosure, the circuit board 160 may include a first circuit board 161, a second circuit board 162, a third circuit board 163, and a fourth circuit board 164. The flexible film 150 may include a plurality of first flexible films 151, a plurality of second flexible films 152, a plurality of third flexible films 153, and a plurality of fourth flexible films 154. For example, half of the first circuit board 161 and the second circuit board 162 may be connected to the first transparent display device 101. The first circuit board 161 may be connected to the first transparent display device 101 via a plurality of first flexible films 151. The second circuit board 162 may be connected to the first transparent display device 101 via the remaining second flexible films 152 that are not cut by the first cutting part CP1 among the plurality of second flexible films 152. Half of the first circuit board 161 and the second circuit board 162 may be connected to the timing controller via a cable.

[0159] The third circuit board 163 may be connected to the third transparent display device 103 via the third flexible film 153. As described above, if the third transparent display device 103 cannot be used as a transparent display device, the third circuit board 163 may not be connected to the timing controller.

[0160] The fourth circuit board 164 may be connected to the second transparent display device 102. For example, the fourth circuit board 164 may be connected to the second transparent display device 102 via a plurality of fourth flexible films 154. The fourth circuit board 164 may be connected to a timing controller via a cable. Thus, when the transparent display device 100 according to an embodiment of the present disclosure is separated (or divided) by a cutting device, the first transparent display device 101 and the second transparent display device 102 may be used as corresponding transparent display devices having different areas (or different horizontal lengths and vertical lengths).

[0161] Referring Figure 3 , the transparent display device 100 according to an embodiment of the present disclosure may include a planarization layer 113 disposed on the first substrate 110 and a plurality of inorganic layers 111 disposed between the first substrate 110 and the planarization layer 113. For example, the plurality of inorganic layers 111 may be a gate insulating layer 111a, an interlayer insulating layer 111b, a first passivation layer 111c, and a second passivation layer 111d disposed on the upper surface of the buffer layer BL.

[0162] The transparent display device 100 according to an embodiment of the present disclosure may include an undercut portion UC from which the planarization layer 113 and the plurality of inorganic layers 111 are partially removed.

[0163] The undercut portion UC according to an example may be formed by partially removing each of the interlayer insulating layer 111b, the first passivation layer 111c, and the second passivation layer 111d. As Figure 3 shown, the undercut portion UC may be formed in the transmissive portion TA, that is, the transmissive portion TA may include the undercut portion UC.

[0164] The undercut portion UC is used to disconnect the organic light-emitting layer 116 disposed in the transmissive portion TA. Since in the transparent display device 100 according to an embodiment of the present disclosure, the organic light-emitting layer 116, the cathode electrode 117, and the encapsulation layer 118 are formed after the undercut portion UC is formed, the organic light-emitting layer 116 (or the organic light-emitting layer 116, the cathode electrode 117, and the encapsulation layer 118) may be disconnected by the undercut portion UC. Thus, the transparent display device 100 according to an embodiment of the present disclosure may prevent moisture penetration through the organic light-emitting layer 116.

[0165] The undercut portion UC according to an example may be provided in the transmissive portion TA in plurality. Since the undercut portion UC is an area for disconnecting the organic light-emitting layer 116, moisture penetration into the display area DA may be prevented even when the undercut portion UC is cut by a cutting device. Thus, in the transparent display device 100 according to an embodiment of the present disclosure, the cutting portion CP may be any one of the plurality of undercut portions UC. For example, as Figure 3As shown, the undercut portion UC may be disposed along the edge of each of the plurality of moisture-permeable bypass portions 130 provided in the transmissive portion TA. Since each of the plurality of moisture-permeable bypass portions 130 is provided in the form of an island spaced apart from the planarization layer 113 provided in the light-emitting region EA, each of the plurality of moisture-permeable bypass portions 130 may be represented by the island OC or the first planarization layer. In contrast, the planarization layer 113 provided to overlap the light-emitting region EA (and / or the non-light-emitting region NEA) is provided to cover the thin-film transistor 112, and thus may be represented by the cover OC or the second planarization layer.

[0166] For example, as Figure 2 shown, the transmissive portion TA may have two moisture-permeable bypass portions (or the first planarization layer 130) extending in the first direction (Y-axis direction) and may be disposed in parallel. In this case, four undercut portions UC may be provided in one transmissive portion TA, as Figure 3 shown. Any one of these four undercut portions UC may be the cutting portion CP. However, it is not necessarily limited thereto, and the cutting portion CP may be provided (or formed) in the transmissive portion TA and / or the light-emitting region EA, rather than in the undercut portion UC. In addition, the cutting portion CP may be provided in a region other than the dam region 120 and may not be provided in a region where the filling member RF is provided. This is because, if the cutting portion CP is provided in a region where the filling member RF is provided, moisture may penetrate through an organic layer such as an organic light-emitting layer when it is cut by a cutting device. Therefore, in the transparent display device 100 according to an embodiment of the present disclosure, the cutting portion CP may be provided in at least one of the undercut portion UC in a region where the filling member RF is not provided, the light-emitting region EA in a region where the filling member RF is not provided, and the transmissive portion TA in a region where the filling member RF is not provided. Hereinafter, the case where the undercut portion UC is the cutting portion CP will be described by way of example.

[0167] When any one of the plurality of undercut portions UC is cut by a cutting device, the transparent display device 100 according to an embodiment of the present disclosure may be set to have a plurality of transparent display devices having different areas or the same area. As Figure 3As shown, since the organic light-emitting layer 116 is disconnected in the undercut portion UC, moisture penetration through the organic light-emitting layer 116 can be blocked even when the organic light-emitting layer 116 is cut by a cutting device. In addition, since the cutting portion CP is provided between the plurality of dam regions 120, the edge of each transparent display device (e.g., the first transparent display device 101 and the second transparent display device 102) can be provided with a structure in which the dam region 120 surrounds the display region DA even when cut by a cutting device. In addition, since the getter included in the connection member RD provided at the edge in each of the transparent display devices (e.g., the first transparent display device 101 and the second transparent display device 102) can absorb moisture and oxygen, moisture penetration prevention into the display region DA can be further maximized.

[0168] Referring to Figure 3 , in the transparent display device 100 according to an embodiment of the present disclosure, the organic light-emitting layer 116 can be disconnected at the undercut portion UC. In addition, the cathode electrode 117 and the encapsulation layer 118 can also be disconnected at the undercut portion UC. Thus, as Figure 3 shown, the moisture-permeable bypass portion 130, the organic light-emitting layer 116 provided on the moisture-permeable bypass portion 130, the cathode electrode 117, and the encapsulation layer 118 can be provided in an island shape. Thus, the connection member RD can be provided to the undercut portion UC on both sides of the moisture-permeable bypass portion 130. In the transparent display device 100 according to an embodiment of the present disclosure, the connection member RD including the getter is provided to the undercut portion UC, so moisture penetration can be further blocked. However, it is not necessarily limited thereto, and the connection member RD can be formed only partially on one side of the moisture-permeable bypass portion 130.

[0169] On the other hand, the transparent display device 100 according to an embodiment of the present disclosure can be configured to manufacture various types (or various sizes) of transparent display devices without an additional masking process by a process of forming the undercut portion UC that disconnects the organic light-emitting layer 116, so production energy can be reduced compared to the case of manufacturing various types (or various sizes) of transparent display devices by various processes.

[0170] As described above, in the transparent display device 100 according to an embodiment of the present disclosure, the undercut portion UC is provided along the edge of each of the plurality of moisture-permeable bypass portions 130, so each of the plurality of moisture-permeable bypass portions 130 can have an island shape through the undercut portion UC. Thus, as Figure 2As shown, each of the plurality of moisture-permeable bypass portions 130 may be configured in an island shape and spaced apart from each other. In the transparent display device 100 according to an embodiment of the present disclosure, the plurality of moisture-permeable bypass portions 130 are spaced apart from each other, thereby preventing moisture from permeating through the moisture-permeable bypass portions 130 provided with the same material (e.g., organic material) as the planarization layer 113.

[0171] In addition, in the transparent display device 100 according to an embodiment of the present disclosure, each of the plurality of moisture-permeable bypass portions 130 is arranged to overlap in at least one of a first direction (Y-axis direction) and a second direction (X-axis direction) different from the first direction (Y-axis direction), and the moisture permeation path through the discontinuous organic light-emitting layer 116' ( Figure 3 as shown in) can be extended. That is, each of the plurality of moisture-permeable bypass portions 130 may be provided with a double-T structure, thereby extending the moisture permeation path through the discontinuous organic light-emitting layer 116'. Therefore, the plurality of moisture-permeable bypass portions 130 may be represented by terms such as a moisture permeation delay portion, a moisture permeation path delay portion, a moisture permeation barrier portion, and a moisture permeation path barrier portion.

[0172] For example, in the first transparent display device 101 cut by the first cutting portion CP1, moisture and oxygen from the outside can permeate between the plurality of first moisture-permeable bypass portions 131 in the first display area DA1, and the plurality of first moisture-permeable bypass portions 131 are arranged in a diagonal form (or diagonal form) or a zigzag form, as Figure 4 shown, so that the moisture permeation path PP (or the first moisture permeation path PP1) can be extended.

[0173] As Figure 4As shown, the moisture and / or oxygen that penetrate into the lower part of the first display area DA1 can penetrate along the moisture penetration path, which is a path along the gaps between the plurality of first moisture-permeable bypass portions 131 to the upper left corner. For example, the moisture penetration path may include a combination of the leftward direction D1, the upward direction D2, and the downward direction D3. Since each of the plurality of first moisture-permeable bypass portions 131 is configured in a double-T structure, the moisture and / or oxygen moving to the upper left side must move not only along the leftward direction D1 and the upward direction D2, but also along the downward direction D3 opposite to the upward direction D2, thereby lengthening the moisture penetration path. Therefore, the first transparent display device 101 formed by cutting along the first cutting portion CP1 has its moisture penetration path lengthened due to the plurality of moisture-permeable bypass portions 130 (or the plurality of first moisture-permeable bypass portions 131) provided in the first display area DA1, and thus, compared with a conventional transparent display device without the plurality of moisture-permeable bypass portions 130, its reliability and service life can be improved.

[0174] On the other hand, as Figure 5 shown, an example of a transparent display device according to a comparative example is provided with the following structure: the planarization layers PL in the transmissive portion TA are connected to each other to block the penetration of moisture through the disconnected organic light-emitting layer 116'. Therefore, as Figure 5 shown, the disconnected organic light-emitting layer 116 is arranged in an island shape. Therefore, the example of the transparent display device according to the comparative example can block the penetration of moisture through the disconnected organic light-emitting layer 116'. However, the example of the transparent display device according to the comparative example is provided with the following structure: the planarization layers PL made of an organic material are connected to each other, so the penetration of moisture through the planarization layer PL cannot be blocked. Therefore, the transparent display device according to the comparative example shown in Figure 5 may suffer from a reduction in reliability due to the penetration of moisture through the planarization layer PL, which may lead to a shortening of the service life.

[0175] As Figure 6 shown, another example of a transparent display device according to a comparative example is provided with the following structure: the planarization layer PL is disconnected in both the first direction (Y-axis direction) and the second direction (X-axis direction) to block the penetration of moisture through the planarization layer PL. Therefore, as Figure 6 shown, the planarization layer PL can be provided in a plurality, and the plurality of planarization layers PL can be arranged in a linear island shape. Therefore, in another example of the transparent display device according to the comparative example, the penetration of moisture through the planarization layer PL can be blocked. However, another example of the transparent display device according to the comparative example is provided with the following structure: the organic light-emitting layers 116' between the plurality of planarization layers PL are connected to each other, so the penetration of moisture through the organic light-emitting layer 116' cannot be blocked. Therefore, according to, for example Figure 6The transparent display device of the comparative example may suffer from a reduction in reliability due to moisture penetration through the organic light emitting layer 116' between the plurality of planarization layers PL, which may lead to a shortened service life.

[0176] In contrast, in the transparent display device 100 according to an embodiment of the present disclosure, each of the plurality of moisture permeable bypass portions 130 is configured in a double-T shape instead of a straight shape, and the plurality of moisture permeable bypass portions 130 are arranged to overlap in at least one of a first direction (Y-axis direction) and a second direction (X-axis direction) different from the first direction (Y-axis direction). Accordingly, moisture penetration through each of the plurality of moisture permeable bypass portions 130 can be blocked, and the moisture penetration path through the organic light emitting layer 116' ( Figure 3 as shown therein) between the plurality of moisture permeable bypass portions 130 can be extended, thereby improving reliability and service life.

[0177] In the transparent display device 100 according to an embodiment of the present disclosure, each of the plurality of moisture permeable bypass portions 130 may include a plurality of first moisture permeable bypass portions 131 in a first display area DA1, a plurality of second moisture permeable bypass portions 132 in a second display area DA2, and a plurality of third moisture permeable bypass portions 133 in a third display area DA3.

[0178] Referring to Figure 2 , the plurality of first moisture permeable bypass portions 131 according to an example may include a bypass member 1311. The bypass member 1311 may include a first bypass member 1311a, a second bypass member 1311b, a third bypass member 1311c, and a fourth bypass member 1311d. The first bypass member 1311a is arranged in the first direction (Y-axis direction), the second bypass member 1311b is spaced apart from the first bypass member 1311a and arranged parallel to the first bypass member 1311a, and the third bypass member 1311c is arranged in a second direction (X-axis direction) different from the first direction (Y-axis direction) and connects the first bypass member 1311a and the second bypass member 1311b, and the fourth bypass member 1311d is arranged at one end (e.g., the upper end of the first bypass member 1311a) of the first bypass member 1311a and parallel to the third bypass member 1311c. Here, the third bypass member 1311c may connect a point between both ends of the first bypass member 1311a and a point between both ends of the second bypass member 1311b. In addition, the first bypass member 1311a may be connected to a point between both ends of the fourth bypass member 1311d. Accordingly, each of the plurality of first moisture permeable bypass portions 131 may be configured in a double-T configuration. Since each of the plurality of first moisture permeable bypass portions 131 is as Figure 2As shown, it includes a fourth bypass member 1311d disposed at the upper end of a first bypass member 1311a disposed in the first direction (Y-axis direction) along the second direction (X-axis direction). Therefore, it can be represented by a left moisture-permeable bypass portion having a left double-T shape.

[0179] On the other hand, the first bypass member 1311a and the second bypass member 1311b can be arranged to extend in the first direction (Y-axis direction) in the transmissive portions TA of different pixels. In addition, each of the first bypass member 1311a and the second bypass member 1311b can be connected as one at the transmissive portions TA of each of the pixels adjacent above and below without being disconnected. Each of the third bypass member 1311c and the fourth bypass member 1311d can be arranged to extend in the second direction (X-axis direction) between adjacent pixels above and below.

[0180] Therefore, in the transparent display device 100 according to an embodiment of the present disclosure, each of the plurality of first moisture-permeable bypass portions 131 having a left double-T shape is spaced apart from each other and overlaps in at least one of the first direction (Y-axis direction) and the second direction (X-axis direction). Therefore, moisture penetration in the upper left direction can be delayed, as Figure 4 shown. The first penetration path PP1 can include, for example, bypass members arranged in different directions at a portion where the first bypass member 1311a and the third bypass member 1311c are connected. The moisture penetration path inevitably forms in the downward direction D3, thereby extending the moisture penetration path. Therefore, in the first transparent display device 101 that can be formed by cutting along the first cutting portion CP1, due to the plurality of first moisture-permeable bypass portions 131 provided in the first display area DA1, moisture penetration can be delayed, thereby improving its reliability and service life.

[0181] Hereinafter, with reference to Figures 7 to 9 FIGs., the second transparent display device 102 that can be cut by the second cutting portion CP2 will be described in detail.

[0182] Figure 7 is Figure 1 an enlarged top view of part B shown in FIGs., Figure 8 is a schematic cross-sectional view taken along II-II' shown in Figure 7 FIGs., and Figure 9 is Figure 1 an enlarged top view of a part of the second display area in part B shown in FIGs..

[0183] The second transparent display device 102 may include a second display area DA2. The second display area DA2 may include as Figure 7A plurality of second moisture-permeable bypass portions 132 as shown. Each of the plurality of second moisture-permeable bypass portions 132 may be arranged in an island shape, so that they are spaced apart from each other. For example, each of the plurality of second moisture-permeable bypass portions 132 may be arranged as a combination of a "T" and a "T" lying on its left side. Each of the plurality of second moisture-permeable bypass portions 132 may have a combination of two "T"s, and thus may be represented by a double "T".

[0184] The transparent display device 100 according to an embodiment of the present disclosure has a plurality of second moisture-permeable bypass portions 132 spaced apart from each other, so that moisture and oxygen from the outside can be prevented from permeating through the second moisture-permeable bypass portions 132. In addition, as Figure 7 shown, in the transparent display device 100 according to an embodiment of the present disclosure, the plurality of second moisture-permeable bypass portions 132 are spaced apart from each other and overlap in at least one of a first direction (Y-axis direction) and a second direction (X-axis direction) different from the first direction (Y-axis direction). Therefore, the path of moisture and oxygen from the outside permeating through the organic layer (for example, the organic light-emitting layer 116) between each of the plurality of second moisture-permeable bypass portions 132 can be extended. Therefore, in the transparent display device 100 according to an embodiment of the present disclosure, due to the plurality of moisture-permeable bypass portions 130, moisture permeation can be prevented or the path of moisture permeation can be extended, thereby improving reliability.

[0185] Each of the plurality of second moisture-permeable bypass portions 132 is formed in the second display area DA2, and each of the plurality of second moisture-permeable bypass portions 132 has the same operating effect as each of the plurality of first moisture-permeable bypass portions 131, except that each of the plurality of second moisture-permeable bypass portions 132 is configured in a different form from each of the plurality of first moisture-permeable bypass portions 131 described above. Therefore, the same reference numerals are given to the same configurations, so that different configurations will be focused on and described hereinafter.

[0186] Now refer to Figures 7 to 9, according to one example, a plurality of second moisture-permeable bypass portions 132 may include bypass members 1311. The bypass member 1311 may include a first bypass member 1311a disposed along a first direction (y-axis direction), a second bypass member 1311b spaced apart from and parallel to the first bypass member 1311a, a third bypass member 1311c disposed along a second direction (x-axis direction) different from the first direction (y-axis direction) and connecting the first bypass member 1311a and the second bypass member 1311b, and a fourth bypass member 1311d disposed at one end (e.g., the upper end of the second bypass member 1311b) of the second bypass member 1311b and parallel to the third bypass member 1311c. Here, the third bypass member 1311c may connect a point between the two ends of the first bypass member 1311a and a point between the two ends of the second bypass member 1311b. In addition, the second bypass member 1311b may be connected to a point between the two ends of the fourth bypass member 1311d. Therefore, each of the plurality of second moisture-permeable bypass portions 132 may be arranged in a double-T configuration. Since, as Figure 7 each of the plurality of second moisture-permeable bypass portions 132 shown includes a fourth bypass member 1311d disposed along the second direction (x-axis direction) at the upper end of the second bypass member 1311b disposed along the first direction (y-axis direction), it may be represented by a right moisture-permeable bypass portion having a right double-T shape.

[0187] On the other hand, the first bypass member 1311a and the second bypass member 1311b may be arranged to extend along the first direction (y-axis direction) in the transmissive portions TA of different pixels. In addition, each of the first bypass member 1311a and the second bypass member 1311b may be connected as one without interruption at the transmissive portions TA of each of the pixels adjacent in the vertical direction. Each of the third bypass member 1311c and the fourth bypass member 1311d may be arranged to extend along the second direction (x-axis direction) between the pixels adjacent in the vertical direction.

[0188] Therefore, in the transparent display device 100 according to an embodiment of the present disclosure, each of the plurality of second moisture-permeable bypass portions 132 having a right double-T shape is spaced apart from each other and overlaps in at least one of the first direction (y-axis direction) and the second direction (x-axis direction), so as Figure 9As shown, moisture penetration in the upper right direction can be delayed. The second penetration path PP2 may include, for example, bypass members disposed in different directions at a portion where the second bypass member 1311b and the third bypass member 1311c are connected. The moisture penetration path inevitably forms in the downward direction D3, thereby extending the moisture penetration path. For example, the second moisture penetration path may be formed as a combination of the rightward direction D1', the upward direction D2, and the downward direction D3. Therefore, in the second transparent display device 102 that can be formed by cutting along the second cutting portion CP2, due to the plurality of second moisture-permeable bypass portions 132 provided in the second display area DA2, moisture penetration can be delayed, thereby improving reliability and service life.

[0189] On the other hand, since the second display area DA2 is surrounded by the second dam area 122, the second cutting portion CP2 may be disposed adjacent to the second dam area 122, as Figure 8 shown.

[0190] Now refer to Figure 2 and Figure 7 In the transparent display device 100 according to an embodiment of the present disclosure, the second moisture-permeable bypass portion 132 may be disposed to have a shape symmetric to that of the first moisture-permeable bypass portion 131. For example, the second moisture-permeable bypass portion 132 may have a shape symmetric to that of the first moisture-permeable bypass portion 131 with respect to the reference line AL. Therefore, the second moisture-permeable bypass portion 132 may be represented by a right moisture-permeable bypass portion, while the first moisture-permeable bypass portion 131 may be represented by a left moisture-permeable bypass portion.

[0191] Figure 10 is a schematic cross-sectional view taken along the line III-III' shown in Figure 7 .

[0192] Refer to Figure 10 In the transparent display device 100 according to an embodiment of the present disclosure, the undercut portion UC may include a blocking portion BKP disposed on at least one inorganic layer covering the gate line GL. In one example, the blocking portion BKP may partially overlap with the moisture-permeable bypass portion 130 (or the fourth bypass member 1311d) between the first passivation layer 111c and the second passivation layer 111d. As Figure 7 shown, the blocking portion BKP may be formed at a portion where the moisture-permeable bypass portion 130 and the second line SL2 (or the gate line GL) overlap.

[0193] The blocking portion BKP is used to prevent all inorganic layers disposed on the upper portion of the wiring (e.g., the second line SL2 (or the gate line GL)) from being etched by the etchant used to form the undercut portion UC. Therefore, as Figure 10As shown, the blocking part BKP is disposed on an inorganic layer (or the interlayer insulating layer 111b and the first passivation layer 111c) on the second line SL2 (or the gate line GL), so that the inorganic layer (or the interlayer insulating layer 111b and the first passivation layer 111c) can be protected from the etching solution. Therefore, when the cathode electrode 117 is deposited, the contact between the second line SL2 (or the gate line GL) and the cathode electrode 117 can be prevented. The blocking part BKP according to an example may include a metal material highly resistant to an etchant. The blocking part BKP may be formed in the same layer as the connection electrode CE ( Figure 8 as shown).

[0194] Referring to Figure 10 , the blocking part BKP may be set to have a width wider than that of the undercut part UC in the first direction (Y-axis direction). Therefore, the edge of the blocking part BKP may be covered by the second passivation layer 111d. On the other hand, as Figure 10 shown, each of the first bypass member 1311a and the fourth bypass member 1311d may be provided with a structure protruding toward the center of the undercut part UC. Therefore, each of the first bypass member 1311a and the fourth bypass member 1311d may partially overlap with the blocking part BKP. Due to the protruding structure of each of the first bypass member 1311a and the fourth bypass member 1311d, the organic light-emitting layer 116 may be disconnected in the undercut part UC.

[0195] The organic light-emitting layer 116' disconnected by the undercut part UC may be in contact with the upper surface of the blocking part BKP. Each of the cathode electrode 117 and the encapsulation layer 118 disposed on the disconnected organic light-emitting layer 116' may be in contact with the upper surface of the blocking part BKP, but is not necessarily limited thereto.

[0196] On the other hand, as Figure 10 shown, on the upper side of the encapsulation layer 118 and the blocking part BKP, a filling member RF for bonding the first substrate 110 and the second substrate 200 may be provided.

[0197] Figure 11 is a schematic cross-sectional view taken along the line IV-IV' shown in Figure 7 .

[0198] Referring to Figure 11 , the blocking part BKP may partially overlap with the gate line GL. As Figure 11As shown, the blocking part BKP according to the example can be formed between the second bypass member 1311b and the third bypass member 1311c and between the third bypass member 1311c and the first bypass member 1311a, respectively. Therefore, the blocking part BKP can partially overlap with the gate line GL. Since the blocking part BKP is configured to partially overlap with the gate line GL, a plurality of inorganic layers (for example, the interlayer insulating layer 111b and the first passivation layer 111c) on the gate line GL can be protected from the etchant. Therefore, contact between the second line SL2 (or the gate line GL) and the cathode electrode 117 can be prevented during the deposition of the cathode electrode 117.

[0199] Figure 12 is taken along Figure 7 the line V-V' shown in

[0200] Referring to Figure 12 , the second line SL2 (or the gate line GL) can be configured to partially overlap with the second bypass member 1311b. In Figure 12 this case, since a plurality of inorganic layers 111 on the second line SL2 (or the gate line GL) have a non-etching structure, the blocking part BKP may not be provided on the second line SL2 (or the gate line GL) and / or some of the inorganic layers in the plurality of inorganic layers.

[0201] Therefore, the transparent display device 100 according to an embodiment of the present disclosure is provided with the blocking part BKP on the second line SL2 (or the gate line GL) passing through the part where the undercut UC is formed, and can protect the inorganic film layer on the second line SL (or the gate line GL) (or the inorganic film layer on a predetermined area including the second line SL2 (or the gate line GL) on the second line SL2 (or the gate line GL)) from the etching solution, thereby preventing contact between the cathode electrode 117 and the second line SL2 (or the gate line GL).

[0202] Figure 13 is Figure 1 an enlarged top view of part C shown in

[0203] Referring to Figure 13, the third display area DA3 partially overlapping with the reference line AL may include a plurality of third moisture-permeable bypass portions 133. As described above, the first moisture-permeable bypass portion 131 and the second moisture-permeable bypass portion 132 may have symmetric shapes with respect to the reference line AL. For example, the first moisture-permeable bypass portion 131 may be configured in a double-T shape, which may be represented by a left moisture-permeable bypass portion, and the second moisture-permeable bypass portion 132 may be configured in a double-T shape, which may be represented by a right moisture-permeable bypass portion. Therefore, a space without a moisture-permeable bypass portion may occur in a portion adjacent to the first moisture-permeable bypass portion 131 and the second moisture-permeable bypass portion 132, and the third moisture-permeable bypass portion 133 will fill this space.

[0204] As Figure 13 shown, the third moisture-permeable bypass portion 133 may be configured to have a different shape from the first moisture-permeable bypass portion 131 and the second moisture-permeable bypass portion 132. For example, the third moisture-permeable bypass portion 133 may include a first bypass member 133a disposed along a first direction (Y-axis direction) and a second bypass member 133b connected to a first end (or upper end) of the first bypass member 133a and disposed along a second direction (X-axis direction).

[0205] The first bypass member 133a may be connected to a point between both ends of the second bypass member 133b. Therefore, the plurality of third moisture-permeable bypass portions 133 may be configured to fill the space between the plurality of first moisture-permeable bypass portions 131 and the plurality of second moisture-permeable bypass portions 132, and may delay moisture penetration by extending the penetration path of moisture and / or oxygen that penetrates and moves between the plurality of first moisture-permeable bypass portions 131. In addition, the plurality of third moisture-permeable bypass portions 133 may delay moisture penetration by extending the penetration path of moisture and / or oxygen that penetrates and moves between the plurality of second moisture-permeable bypass portions 132. For example, the third moisture-permeable bypass portion 133 may be configured in a T shape, in which the first bypass member 133a is coupled to a portion spaced to the right of the center of the second bypass member 133b, or the first bypass member 133a may be configured in a T shape, in which the first bypass member 133a is coupled to a portion spaced to the left of the center of the second bypass member 133b.

[0206] Figure 14 is a schematic top view of a transparent display device according to a second embodiment of the present disclosure.

[0207] Now refer to Figure 14, except for the structural change of the plurality of moisture-permeable bypass portions 130 (or the plurality of first moisture-permeable bypass portions 131), the transparent display device 100 according to the second embodiment of the present disclosure is the same as the transparent display device described above according to Figure 1 . Therefore, the same reference numerals are assigned to the same configurations, so that the elements having different configurations will be focused on and described hereinafter.

[0208] In the case of the transparent display device according to the above Figure 1 , each of the plurality of moisture-permeable bypass portions 130 is configured in a double-T shape. For example, the first moisture-permeable bypass portion 131 provided in the first display area DA1 may be configured in a left double-T shape. Therefore, the transparent display device according to Figure 1 may have the following characteristics: compared with the moisture penetration in the upper right direction, the moisture penetration in the upper left direction into the first display area DA1 can be more effectively blocked.

[0209] In contrast, in the case of the transparent display device according to Figure 14 , each of the plurality of moisture-permeable bypass portions 130 is configured in the form of a vortex. For example, the first moisture-permeable bypass portion 131 provided in the first display area DA1 includes a first bypass member 1311a, a second bypass member 1311b, a third bypass member 1311c, and a fourth bypass member 1311d. The first bypass member 1311a is disposed parallel to the first direction (Y-axis direction), and the second bypass member 1311b is disposed parallel to the first bypass member 1311a and spaced apart from the first bypass member 1311a. The third bypass member 1311c is disposed along a second direction (X-axis direction) different from the first direction (Y-axis direction) and connects the first bypass member 1311a and the second bypass member 1311b, and the fourth bypass member 1311d is spaced apart from the third bypass member 1311c and disposed parallel to the third bypass member 1311c and connects the first bypass member 1311a and the second bypass member 1311b. Here, the third bypass member 1311c may connect a point between one end (or the upper end) of the first bypass member 1311a and both ends of the second bypass member 1311b, and the fourth bypass member 1311d may connect a point between one end (or the lower end) of the second bypass member 1311b and both ends of the first bypass member 1311a. Therefore, in the case of the transparent display device according to Figure 14 , each of the plurality of moisture-permeable bypass portions 130 may be configured in the form of a vortex.

[0210] On the other hand, the first bypass member 1311a and the second bypass member 1311b may be arranged to extend from the transmissive portions TA of different pixels in the first direction (Y-axis direction). In addition, each of the first bypass member 1311a and the second bypass member 1311b may be connected as one at the transmissive portions TA of each of the pixels adjacent vertically without being disconnected. As Figure 14 shown, the first bypass member 1311a and the second bypass member 1311b may only partially overlap in the second direction (X-axis direction). Each of the third bypass member 1311c and the fourth bypass member 1311d may be arranged to extend in the second direction (x-axis direction) between adjacent pixels vertically. As Figure 14 shown, the third bypass member 1311c and the fourth bypass member 1311d may only partially overlap in the first direction (Y-axis direction).

[0211] The transparent display device 100 according to the second embodiment of the present disclosure may further include a sealing area SA, in which each of the plurality of moisture-permeable bypass portions 130 is surrounded by a part of each of the first bypass member 1311a, the second bypass member 1311b, the third bypass member 1311c, and the fourth bypass member 1311d. As Figure 14 shown, the sealing area SA according to an example may be partially provided in the transmissive portion TA. Therefore, the organic light-emitting layer 116' provided in the sealing area SA is surrounded by the plurality of moisture-permeable bypass portions 130 (or the first to fourth bypass members 1311a, 1311b, 1311c, 1311d), and thus cannot be used as a moisture penetration path.

[0212] In addition, in the transparent display device 100 according to the second embodiment of the present disclosure, each of the plurality of moisture-permeable bypass portions 130 is configured in a vortex form, so that the moisture penetration path PP (or the first moisture penetration path PP1) includes a path along the downward direction D3 as Figure 14 shown, thereby extending the moisture penetration path. Therefore, the transparent display device 100 according to the second embodiment of the present specification may have the following feature: compared with the moisture penetration in the upper right direction, the moisture penetration in the upper left direction can be more effectively blocked.

[0213] Accordingly, the transparent display device 100 according to the second embodiment of the present disclosure can form each of the plurality of moisture-permeable bypass portions 130 in a swirling form, so that the moisture penetration path can be blocked by the sealing region SA, and the moisture penetration path can be extended through the first bypass member to the fourth bypass member 1311a, 1311b, 1311c, 1311d, thereby delaying the penetration of moisture and oxygen. Accordingly, the transparent display device 100 according to the second embodiment of the present disclosure can have an improved service life due to the improved reliability of moisture penetration resistance.

[0214] Figure 15 is a schematic top view of a transparent display device according to a third embodiment of the present disclosure.

[0215] Now refer to Figure 15 , except for the structural change of the plurality of moisture-permeable bypass portions 130 (or the plurality of first moisture-permeable bypass portions 131), the transparent display device 100 according to the third embodiment of the present disclosure is the same as the transparent display device according to Figure 1 described above. Accordingly, the same reference numerals are assigned to the same configurations, so that the elements with different configurations will be focused on and described hereinafter.

[0216] In the case of the transparent display device according to Figure 1 above, each of the plurality of moisture-permeable bypass portions 130 is configured in a double-T shape. For example, the first moisture-permeable bypass portion 131 provided in the first display area DA1 may be configured in a left double-T shape. Accordingly, the transparent display device according to Figure 1 above may have the following characteristics: compared with the moisture penetration in the upper right direction, the moisture penetration in the upper left direction into the first display area DA1 can be more effectively blocked.

[0217] In contrast, in the case of the transparent display device according to Figure 15 above, each of the plurality of moisture-permeable bypass portions 130 is set as a "T" lying on its left side. For example, the first moisture-permeable bypass portion 131 provided in the first display area DA1 may include a first bypass member 1311a and a second bypass member 1311b. The first bypass member 1311a is provided along the first direction (Y-axis direction), and the second bypass member 1311b is provided along a second direction (X-axis direction) different from the first direction (Y-axis direction) and is connected between both ends of the first bypass member 1311a. Accordingly, in the case of the transparent display device according to Figure 15 above, each of the plurality of moisture-permeable bypass portions 130 may be configured as a "T" lying on its left side.

[0218] On the other hand, the first bypass member 1311a may extend in the first direction (Y-axis direction) in the transmissive portions TA of different pixels. In addition, the first bypass member 1311a may be connected as one at the transmissive portions TA of each of the pixels adjacent in the vertical direction without being disconnected. The second bypass member 1311b may be arranged to extend in the second direction (X-axis direction) between the pixels adjacent in the vertical direction.

[0219] Therefore, each of the plurality of moisture-permeable bypass portions 130 in the transparent display device 100 according to the third embodiment of the present disclosure may be in the form of a left-lying "T", so that the moisture penetration path PP (or the first moisture penetration path PP1) includes a path along the downward direction D3 as shown in Figure 15 shown, thereby extending the moisture penetration path.

[0220] Therefore, in the transparent display device 100 according to the third embodiment of the present disclosure, each of the plurality of moisture-permeable bypass portions 130 is arranged in the form of a left-lying "T", so that the moisture penetration path can be extended through the first bypass member to the second bypass members 1311a and 1311b, thereby delaying the penetration of moisture and oxygen. Therefore, the transparent display device 100 according to the second embodiment of the present disclosure may have an improved service life due to the improved reliability of moisture penetration resistance.

[0221] Figure 16 is a schematic top view of a transparent display device according to a fourth embodiment of the present disclosure.

[0222] Now refer to Figure 16 , except for the structural change of the plurality of moisture-permeable bypass portions 130 (or the plurality of first moisture-permeable bypass portions 131), the transparent display device 100 according to the fourth embodiment of the present disclosure is the same as the transparent display device according to Figure 1 described above. Therefore, the same reference numerals are assigned to the same configurations, so that the elements with different configurations will be focused on and described hereinafter.

[0223] In the case of the transparent display device according to Figure 1 above, each of the plurality of moisture-permeable bypass portions 130 is configured in the form of a double T. For example, the first moisture-permeable bypass portion 131 provided in the first display area DA1 may be configured in the form of a left double T. Therefore, the transparent display device according to Figure 1 may have the following characteristics: compared with the moisture penetration in the upper right direction, the moisture penetration in the upper left direction in the first display area DA1 can be more effectively blocked.

[0224] In contrast, in the case of according to Figure 16In the case of the transparent display device, each of the plurality of moisture-permeable bypass portions 130 is configured in a structure where a left-lying "T" shape and a right-lying "T" shape overlap in the vertical direction (or the first direction (Y-axis direction)). For example, the first moisture-permeable bypass portion 131 provided in the first display area DA1 includes a first bypass member 1311a, a second bypass member 1311b, a third bypass member 1311c, and a fourth bypass member 1311d. The first bypass member 1311a is provided in the first direction (Y-axis direction), the second bypass member 1311b is provided parallel to the first bypass member 1311a and spaced apart from the first bypass member 1311a, the third bypass member 1311c is provided in a second direction (X-axis direction) different from the first direction (Y-axis direction) and connected to a point between both ends of the second bypass member 1311b, and the fourth bypass member 1311d is connected to a point between both ends of the first bypass member 1311a and provided parallel to the third bypass member 1311c. Therefore, in accordance with Figure 16 In the case of the transparent display device, each of the plurality of moisture-permeable bypass portions 130 may be configured in a structure where a left-lying "T" shape and a right-lying "T" shape overlap in the vertical direction (or the first direction (Y-axis direction)).

[0225] On the other hand, the first bypass member 1311a and the second bypass member 1311b may be provided to extend in the first direction (Y-axis direction) from the transmissive portions TA of different pixels. In addition, each of the first bypass member 1311a and the second bypass member 1311b may be connected as one at the transmissive portions TA of each of the pixels adjacent in the vertical direction without being disconnected. Each of the third bypass member 1311c and the fourth bypass member 1311d may be provided to extend in the second direction (X-axis direction) between pixels adjacent in the vertical direction. As Figure 16 shown, the first bypass member 1311a and the second bypass member 1311b may only partially overlap in the second direction (X-axis direction). In addition, the third bypass member 1311c and the fourth bypass member 1311d may only partially overlap in the first direction (Y-axis direction).

[0226] Therefore, the transparent display device 100 according to the fourth embodiment of the present specification is configured in the following structure: each of the plurality of moisture-permeable bypass portions 130 has a left-lying "T" shape and a right-lying "T" shape that overlap in the vertical direction (or the first direction (Y-axis direction)), and thus the moisture permeation path PP (or the first moisture permeation path PP1) includes a path along the downward direction D3 as Figure 16 shown, thereby extending the moisture permeation path.

[0227] Therefore, the transparent display device 100 according to the fourth embodiment of the present disclosure is configured in the following structure: Each of the plurality of moisture-permeable bypass portions 130 has a left-lying "T" shape and a right-lying "T" shape that overlap in the vertical direction (or the first direction (Y-axis direction)). Therefore, the moisture permeation path through the first bypass member to the fourth bypass members 1311a, 1311b, 1311c, and 1311d can be extended, thereby delaying the permeation of moisture and oxygen. Therefore, the transparent display device 100 according to the fourth embodiment of the present disclosure can have an improved service life due to the increased reliability of moisture permeation resistance.

[0228] Figure 17 is a schematic top view of a transparent display device according to a fifth embodiment of the present disclosure.

[0229] Now refer to Figure 17 , except for the structural change of the plurality of moisture-permeable bypass portions 130 (or the plurality of first moisture-permeable bypass portions 131), the transparent display device 100 according to the fifth embodiment of the present disclosure is the same as the transparent display device according to Figure 1 above. Therefore, the same reference numerals are assigned to the same configurations, so that the elements with different configurations will be focused on and described hereinafter.

[0230] In the case of the transparent display device according to Figure 1 above, each of the plurality of moisture-permeable bypass portions 130 is configured in a double-T shape. For example, the first moisture-permeable bypass portion 131 provided in the first display area DA1 can be configured in a left double-T shape. Therefore, the transparent display device according to Figure 1 above can have the following characteristics: Compared with the moisture permeation in the upper right direction, the moisture permeation in the upper left direction into the first display area DA1 can be more effectively blocked.

[0231] In contrast, in the case of the transparent display device according to Figure 17 above, each of the plurality of moisture-permeable bypass portions 130 is provided with a combination of a horizontal straight line and a vertical straight line. For example, the first moisture-permeable bypass portion 131 provided in the first display area DA1 can include a first bypass member 1311a and a second bypass member 1311b. The first bypass member 1311a is provided in the first direction (Y-axis direction), and the second bypass member 1311b is spaced apart from the first bypass member 1311a and provided in a second direction (X-axis direction) different from the first direction (Y-axis direction). Here, the second bypass member 1311b can be provided between the two ends of the first bypass member 1311a with respect to the first direction (Y-axis direction). Therefore, in the case of the transparent display device according to Figure 17In the case of the transparent display device, each of the plurality of moisture-permeable bypass portions 130 may be provided with a combination of horizontal straight lines and vertical straight lines.

[0232] On the other hand, the first bypass member 1311a may be arranged to extend in the first direction (Y-axis direction) in the transmissive portions TA of different pixels. In addition, the first bypass member 1311a may be connected as one without disconnection at the transmissive portions TA of each of the pixels adjacent vertically above and below. The second bypass member 1311b may be arranged to extend in the second direction (X-axis direction) between the pixels adjacent vertically above and below. As Figure 17 shown, the second bypass member 1311b may be arranged between the sub-pixels of each of the pixels adjacent vertically above and below and between a part of the transmissive portions.

[0233] Therefore, the transparent display device 100 according to the fifth embodiment of the present disclosure may have the following moisture-permeable bypass portion 130: each of the plurality of moisture-permeable bypass portions 130 is configured in the form of a combination of horizontal straight lines and vertical straight lines, so that the moisture penetration path PP (or the first moisture penetration path PP1) may extend as Figure 17 shown. However, since the moisture penetration path PP (or the first moisture penetration path PP1) does not include a path along the downward direction D3, the moisture penetration path may be shorter than that of the transparent display devices according to the first to fourth embodiments.

[0234] Therefore, in the transparent display device 100 according to the fifth embodiment of the present disclosure, each of the plurality of moisture-permeable bypass portions 130 is provided with a combination of horizontal straight lines and vertical straight lines, so that the moisture penetration path through the first bypass member 1311a and the second bypass member 1311b is extended, thereby delaying the penetration of moisture and oxygen. Therefore, the transparent display device 100 according to the fifth embodiment of the present disclosure may have an improved service life due to the improved reliability of moisture penetration resistance.

[0235] On the other hand, when the cutting device cuts along the cutting portion CP, the transparent display device 100 according to an embodiment of the present disclosure may be configured to be divided into a first transparent display device 101 and a second transparent display device 102. Each of the first transparent display device 101 cut by the cutting device or the second transparent display device 102 cut by the cutting device may include a substrate 110, a dam region 120, and a plurality of moisture-permeable bypass portions 130. The substrate 110 is provided with a display area DA and a non-display area NDA on the periphery of the display area DA. A plurality of pixels P are provided in the display area DA, and each sub-pixel P has a transmissive portion TA and a plurality of sub-pixels SP. The dam region 120 surrounds the display area DA on the substrate 110, and the plurality of moisture-permeable bypass portions 130 are provided in the display area DA surrounded by the dam region 120.

[0236] The plurality of moisture-permeable bypass portions 130 included in the first transparent display device 101 cut by the cutting device are the same as the plurality of moisture-permeable bypass portions 130 (or a plurality of first moisture-permeable bypass portions 131) included in the transparent display device 100 according to an embodiment of the present disclosure described above, and thus their description will be omitted.

[0237] In addition, the plurality of moisture-permeable bypass portions 130 included in the second transparent display device 102 cut by the cutting device are the same as the plurality of moisture-permeable bypass portions 130 (or a plurality of second moisture-permeable bypass portions 132) included in the transparent display device 100 according to an embodiment of the present disclosure described above, and thus their description will be omitted.

[0238] Therefore, the first transparent display device 101 cut by the cutting device and the second transparent display device 102 cut by the cutting device may be configured to have different areas (or different horizontal lengths and different vertical lengths). In addition, since the first transparent display device 101 may have a moisture permeation path extended through the plurality of first moisture-permeable bypass portions 131, reliability can be improved and service life can be increased. In addition, since the second transparent display device 102 may have a moisture permeation path extended through the plurality of second moisture-permeable bypass portions 132, reliability can be improved and service life can be increased.

[0239] Embodiments of the present disclosure have been described in more detail with reference to the accompanying drawings. However, the present disclosure is not necessarily limited to these embodiments and can be practiced with various modifications without departing from the technical concept of the present disclosure. Therefore, the embodiments disclosed herein are intended to illustrate rather than limit the technical concept of the present disclosure, and the scope of the technical concept of the present disclosure is not limited by these embodiments. Therefore, the above-described embodiments are exemplary in all respects and should be understood as non-limiting. The protection scope of this specification should be interpreted by the claims, and all technical concepts within the scope of the claims should be interpreted as being included within the scope of the claims.

[0240] According to various examples, the present disclosure includes a plurality of dam regions to allow a display panel to be cut into various sizes such that it can be manufactured into various types (or different sizes).

[0241] In addition, according to various examples, the present disclosure can be manufactured into various types (or different sizes) without an additional mask process, which can result in reduced production energy compared to transparent display devices manufactured into various types by different production processes.

[0242] In addition, according to various examples, the present disclosure provides an island-shaped moisture-permeable bypass portion such that a moisture path is disconnected, whereby moisture penetration can be reduced or blocked even when it is manufactured into various types (or different sizes).

[0243] In addition, according to various examples, the present disclosure provides a moisture-permeable bypass portion that includes bypass members arranged in different directions to extend a moisture penetration path, whereby moisture penetration can be reduced or blocked even when the bypass members are cut in different directions (or horizontal and vertical directions).

[0244] The effects obtainable from the present disclosure are not limited to the effects mentioned above, and other effects not mentioned in the following description will be apparent to those of ordinary skill in the art.

Claims

1. A transparent display device, comprising: a substrate including a display area on which a plurality of pixels are disposed and a non-display area adjacent to the display area, each of the plurality of pixels having a transmission portion and a plurality of sub-pixels; as well as a plurality of dam regions extending from the non-display region to the display region on the substrate and partially surrounding the display region, The display area surrounded by each of the plurality of dam areas includes a plurality of moisture permeable bypass portions.

2. The transparent display device according to claim 1, wherein: The plurality of moisture permeable bypass portions are spaced apart from one another.

3. The transparent display device according to claim 1, wherein: The plurality of moisture permeable bypass portions are disposed to overlap in at least one of a first direction and a second direction, the second direction being different from the first direction.

4. The transparent display device according to claim 1, further comprising: a planarization layer disposed on the substrate; a plurality of inorganic layers disposed between the substrate and the planarization layer; as well as an undercut portion from which the planarization layer and the plurality of inorganic layers are partially removed, Wherein, the undercut portion is disposed along an edge of each of the plurality of moisture permeable bypass portions.

5. The transparent display device according to claim 4, wherein: Each of the plurality of sub-pixels comprises: an anode electrode disposed on the planarization layer; An organic light-emitting layer disposed on the anode electrode; A cathode electrode disposed on the organic light emitting layer; and An encapsulation layer is provided on the cathode electrode, Wherein, the organic light emitting layer is disconnected at the undercut portion.

6. The transparent display device according to claim 4, in, The substrate includes a gate line covered by at least one inorganic layer among the plurality of inorganic layers, and Wherein, the undercut portion includes a blocking portion disposed on the at least one inorganic layer covering the gate line.

7. The transparent display device according to claim 6, wherein: The blocking portion partially overlaps the gate line.

8. The transparent display device according to claim 1, in, Each of the plurality of moisture permeable bypass portions comprises a bypass member, Wherein, the bypass component comprises: a first bypass member disposed along a first direction; a second bypass member spaced apart from and disposed parallel to the first bypass member; a third bypass member disposed in a second direction different from the first direction and connecting the first bypass member and the second bypass member; and A fourth bypass member is provided at one end of the first bypass member and is provided in parallel with the third bypass member.

9. The transparent display device according to claim 8, wherein: The third bypass member is connected to a point between both ends of the first bypass member and a point between both ends of the second bypass member.

10. The transparent display device according to claim 8, wherein: The first bypass member is connected to a point between both ends of the fourth bypass member.

11. The transparent display device according to claim 1, in, Each of the plurality of dam regions is provided on the substrate in number N, where N is an integer greater than 1, and Wherein, the substrate further includes a cutting portion arranged between the N dam regions.

12. The transparent display device according to claim 11, in, The cutting portion includes a first cutting line arranged along a first direction and a second cutting line arranged along a second direction different from the first direction. wherein the first cutting line is disposed adjacent to a first side of the dam area, and Wherein, the second cutting line is arranged adjacent to the second side of the dam area.

13. The transparent display device according to claim 12, in, The substrate further includes a plurality of gate drivers disposed in the non-display area, and Wherein, the plurality of gate drivers are arranged parallel to the first direction or the second direction.

14. The transparent display device according to claim 11, in, Each of the plurality of sub-pixels disposed between the N dam regions includes a light emitting region disposed adjacent to the transmission portion, and The cutting portion is disposed in at least one of the transmission portion and the light emitting area.

15. The transparent display device according to claim 1, in, Each of the plurality of moisture permeable bypass portions comprises a bypass member, Wherein, the bypass component comprises: a first bypass member arranged along a first direction, a second bypass member spaced apart from and arranged parallel to the first bypass member, a third bypass member disposed in a second direction different from the first direction and connecting the first bypass member and the second bypass member, and A fourth bypass member is provided at one end of the second bypass member and is provided in parallel with the third bypass member.

16. The transparent display device according to claim 15, wherein: The third bypass member is connected to a point between both ends of the first bypass member and a point between both ends of the second bypass member.

17. The transparent display device according to claim 15, wherein: The second bypass member is connected to a point between both ends of the fourth bypass member.

18. The transparent display device according to claim 1, in, The plurality of dam regions include a first dam region and a second dam region, wherein the first dam region is disposed in the first region of the substrate, The second dam area is arranged in a second area adjacent to the first area. wherein the substrate comprises a reference line disposed between the first region and the second region, and The first region has the same area as the second region relative to the reference line.

19. The transparent display device according to claim 18, in, The display area includes a first display area, a second display area and a third display area, wherein the first display area is surrounded by the first dam area, wherein the second display area is surrounded by the second dam area, and The third display area is disposed between the first display area and the second display area and partially overlaps with the reference line.

20. The transparent display device according to claim 19, in, The plurality of moisture permeable bypass portions include a first moisture permeable bypass portion and a second moisture permeable bypass portion, wherein the first moisture permeable bypass portion is disposed in the first display area, wherein the second moisture permeable bypass portion is disposed in the second display area, and Wherein, the second moisture-permeable bypass portion has a shape symmetrical to the first moisture-permeable bypass portion with respect to the reference line.

21. The transparent display device according to claim 20, in, The third display area includes a third moisture permeable bypass portion disposed between the first moisture permeable bypass portion and the second moisture permeable bypass portion, and Wherein, the third moisture-permeable bypass portion has a shape different from the first moisture-permeable bypass portion and the second moisture-permeable bypass portion.

22. The transparent display device according to claim 1, in, Each of the plurality of moisture permeable bypass portions comprises a bypass member, Wherein, the bypass component comprises: a first bypass member arranged along a first direction, a second bypass member spaced apart from and arranged parallel to the first bypass member, a third bypass member disposed in a second direction different from the first direction and connecting the first bypass member and the second bypass member, and A fourth bypass member is spaced apart from and disposed in parallel with the third bypass member and connects the first bypass member and the second bypass member.

23. The transparent display device according to claim 22, in, The third bypass member is connected to a point between one end of the first bypass member and both ends of the second bypass member, and The fourth bypass member is connected to one end of the second bypass member and a point between both ends of the first bypass member.

24. The transparent display device according to claim 22, in, Each of the plurality of moisture permeable bypass portions includes a sealed area surrounded by a portion of each of the first bypass member, the second bypass member, the third bypass member, and the fourth bypass member, and Wherein, the sealing area is partially disposed on the transmission portion.

25. The transparent display device according to claim 1, in, Each of the plurality of moisture permeable bypass portions includes a bypass member, and Wherein, the bypass component comprises: a first bypass member arranged along a first direction, and A second bypass member is disposed in a second direction different from the first direction and connected to a point between both ends of the first bypass member.

26. The transparent display device according to claim 1, in, Each of the plurality of moisture permeable bypass portions includes a bypass member, and Wherein, the bypass component comprises: a first bypass member arranged along a first direction, and A second bypass member is spaced apart from the first bypass member and disposed in a second direction different from the first direction.

27. The transparent display device according to claim 1, in, Each of the plurality of moisture permeable bypass portions comprises a bypass member, Wherein, the bypass component comprises: a first bypass member arranged along a first direction, a second bypass member spaced apart from and arranged parallel to the first bypass member, a third bypass member disposed in a second direction different from the first direction and connected to a point between both ends of the second bypass member, and a fourth bypass member connected to a point between both ends of the first bypass member and arranged parallel to the third bypass member, wherein the third bypass member is spaced apart from the first bypass member, and Wherein, the fourth bypass member is spaced apart from the second bypass member.

28. A transparent display device, comprising: a substrate including a display area on which a plurality of pixels are disposed and a non-display area adjacent to the display area, each of the plurality of pixels having a transmission portion and a plurality of sub-pixels; a dam area surrounding the display area on the substrate; as well as A plurality of moisture permeable bypass portions are disposed in the display area surrounded by the dam area.

29. The transparent display device according to claim 28, wherein: The plurality of moisture permeable bypass portions are spaced apart from each other and partially overlap in at least one of a first direction and a second direction different from the first direction.

30. The transparent display device according to claim 28, further comprising: a planarization layer disposed on the substrate; a plurality of inorganic layers disposed between the substrate and the planarization layer; as well as an undercut portion from which the planarization layer and the plurality of inorganic layers are partially removed, Wherein, the undercut portion is disposed along an edge of each of the plurality of moisture permeable bypass portions.

31. The transparent display device according to claim 30, in, Each of the plurality of sub-pixels comprises: An anode electrode is provided on the planarization layer, An organic light emitting layer is disposed on the anode electrode, a cathode electrode disposed on the organic light-emitting layer, and An encapsulation layer is provided on the cathode electrode, Wherein, the organic light emitting layer is disconnected at the undercut portion.

32. The transparent display device according to claim 30, in, The substrate includes a gate line covered by at least one inorganic layer among the plurality of inorganic layers, and The undercut portion includes a blocking portion, and the blocking portion is disposed to partially overlap the gate line on the at least one inorganic layer covering the gate line.

33. The transparent display device according to claim 28, in, Each of the plurality of moisture permeable bypass portions includes a bypass member, and Wherein, the bypass component comprises: a first bypass member arranged along a first direction, a second bypass member spaced apart from and arranged parallel to the first bypass member, a third bypass member disposed in a second direction different from the first direction and connecting the first bypass member and the second bypass member, and A fourth bypass member is provided at one end of the first bypass member and is provided in parallel with the third bypass member.

34. The transparent display device according to claim 33, wherein: The third bypass member is connected to a point between both ends of the first bypass member and a point between both ends of the second bypass member.

35. The transparent display device according to claim 33, wherein: The first bypass member is connected to a point between both ends of the fourth bypass member.

36. A transparent display device, comprising: a substrate including a display area on which a plurality of pixels are arranged and a non-display area adjacent to the display area, each of the plurality of pixels having a transmission portion and a plurality of sub-pixels, The display area includes a plurality of moisture permeable bypass portions, the plurality of moisture permeable bypass portions are spaced apart from each other and at least partially overlap in at least one of a first direction and a second direction different from the first direction.

37. The transparent display device according to claim 36, wherein: Each of the plurality of moisture-permeable bypass portions includes at least one bypass member disposed along the first direction and at least one bypass member disposed along the second direction.

38. The transparent display device according to claim 36, further comprising: a planarization layer disposed on the substrate; a plurality of inorganic layers disposed between the substrate and the planarization layer; as well as an undercut portion from which the planarization layer and the plurality of inorganic layers are partially removed, Wherein, the undercut portion is disposed along an edge of each of the plurality of moisture permeable bypass portions.

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