Transparent display device

Abstract

A transparent display device according to an embodiment of the present invention includes: a substrate including a display area in which a plurality of pixels having a transmissive portion and a plurality of sub-pixels are disposed, and a non-display area around the display area; and a plurality of weir regions extending on the substrate from the non-display region to the display region, and disposed in a closed loop.

Description

[0001] Cross - reference to related applications

[0002] This application claims the benefit of Korean Patent Application No. 10 - 2023 - 0193039, filed on December 27, 2023, which is incorporated herein by reference in its entirety as if fully set forth herein. Technical Field

[0003] The present invention 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 recently been used.

[0005] Recently, research on transparent display devices has been actively conducted, in which a user can view an object or background located on the opposite side by looking through the display device.

[0006] These transparent display devices have the potential to be used in a wide variety of fields because they can be viewed as both an image and a background, but due to their wide variety of applications and uses, they need to be manufactured in various types (or various sizes). However, when manufacturing transparent display devices in multiple types (or different sizes), the number of processes increases, resulting in an increase in manufacturing costs and production energy. Summary of the Invention

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

[0008] In addition, one aspect of the present invention aims to provide a transparent display device in which production energy can be reduced.

[0009] In addition, one aspect of the present invention aims to provide a transparent display device that can be manufactured in various types (or various sizes) and still reduce or prevent moisture penetration.

[0010] The problems to be solved by examples of the present invention are not limited to the above problems, and other problems not mentioned will be apparent to those of ordinary skill in the art to which the technical spirit of the present invention pertains from the following description.

[0011] Provided is a transparent display device according to an embodiment of the present invention, including: a substrate including a display area in which a plurality of pixels are disposed and a non-display area around the display area, 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 configured to form a closed loop. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this application, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In the drawings:

[0013] Figure 1 is a schematic plan view of a transparent display device according to an embodiment of the present invention.

[0014] Figure 2 is Figure 1 an enlarged plan view of part A shown in

[0015] Figure 3 is Figure 2 a schematic cross-sectional view of line I-I' shown in

[0016] Figure 4 is Figure 3 a schematic cross-sectional view of another example of part C shown in

[0017] Figure 5 is a schematic cross-sectional view showing Figure 3 another example of part C shown in

[0018] Figure 6 is Figure 2 a schematic cross-sectional view of line Ⅱ-Ⅱ' shown in

[0019] Figure 7 is Figure 2 another example of

[0020] Figure 8 is Figure 2 another example of

[0021] Figure 9 is Figure 8 a schematic cross-sectional view of line Ⅲ-Ⅲ' shown in

[0022] Figure 10 is Figure 1 an enlarged plan view of part B shown in

[0023] Figure 11 is Figure 10Schematic cross-sectional view of line Ⅳ-Ⅳ' shown therein.

[0024] Figure 12 is a schematic cross-sectional view of a transparent display device according to a second embodiment of the present invention.

[0025] Figure 13 is a schematic cross-sectional view of a transparent display device according to a third embodiment of the present invention.

[0026] Figure 14 is a schematic cross-sectional view of a transparent display device according to a fourth embodiment of the present invention.

[0027] Figure 15 is Figure 14 a schematic cross-sectional view of

[0028] Figure 16 is a schematic cross-sectional view showing a part of a transparent display device according to a fifth embodiment of the present invention.

[0029] Figure 17 is Figure 16 a schematic cross-sectional view of line Ⅴ-Ⅴ’ shown therein. Detailed Embodiments

[0030] Now, embodiments of the present invention will be described in detail, and examples thereof are shown in the drawings. As much as possible, the same reference numerals will be used throughout the drawings to refer to the same or similar parts.

[0031] The advantages, features, and methods for realizing them of the present invention will be clarified by the following embodiments described with reference to the drawings. However, the present invention can be implemented in different forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0032] The shapes, sizes, ratios, angles, and quantities disclosed in the drawings used to describe the embodiments of the present invention are merely examples, and thus, the present invention is not limited to the details shown. Similar reference numerals denote similar elements throughout the application documents. In the following description, when the detailed description of related known functions or configurations is determined to unnecessarily obscure the focus of the present invention, the detailed description will be omitted.

[0033] In cases where "comprising", "having", and "including" described in this specification are used, other parts can be added unless "only~" is used. Unless otherwise specified, terms in the singular form can include the plural form.

[0034] When interpreting an element, the element is interpreted as including an error range even though not explicitly described.

[0035] When describing positional relationships, 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 can be provided between the two parts.

[0036] When describing temporal relationships, for example, when the chronological order is described as "after", "subsequently", "next", and "before", discontinuous cases can be included unless "exactly" or "directly" is used.

[0037] It will be understood that although terms such as "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. For example, without departing from the scope of the present invention, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element.

[0038] The "X-axis direction", "Y-axis direction", and "Z-axis direction" should not be interpreted only by the geometric relationship of perpendicularity to each other, and can have a broader directivity within the range where the elements of the present invention can function.

[0039] 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.

[0040] The features of the various embodiments of the present invention can be partially or wholly joined or combined with each other, and can operate with each other in various ways and be technically driven, as can be fully understood by those skilled in the art. The embodiments of the present invention can be executed independently of each other, or can be executed together in a mutually dependent relationship.

[0041] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0042] Figure 1 is a schematic plan view of a transparent display device according to an embodiment of the present invention, Figure 2 is Figure 1 an enlarged plan view of part A shown in Figure 3 is Figure 2 a schematic cross-sectional view of line I-I' shown in

[0043] Hereinafter, the Y-axis direction represents a direction (first direction) parallel to the first line SL1 (e.g., a data line), the X-axis direction represents a direction (second direction) parallel to the second line SL2 (e.g., a gate line), and the Z-axis direction represents the thickness direction (third direction) of the transparent display device 100.

[0044] Now refer to Figures 1 to 3 , the transparent display device 100 according to an embodiment of the present invention includes a substrate 110 having a display area DA and a non-display area NDA (or a border area) and a plurality of dam areas DMA. The plurality of dam areas DMA are provided on the substrate 110 and extend from the non-display area NDA (or the border area) to the display area DA in a closed loop. The display area DA includes a plurality of pixels P each having a transmissive portion TA and a plurality of sub-pixels SP, and the non-display area NDA is around the display area DA. Each of the plurality of dam areas DMA according to an example may be provided as a closed loop.

[0045] Here, each of the plurality of dam areas DMA being set as a closed loop may mean that the display area DA is partially surrounded by the dam area DMA, as Figure 1 shown. Thus, the display area DA may be surrounded by the plurality of dam areas DMA having a closed structure and may have a structure divided by the plurality of dam areas DMA. For example, as Figure 1 shown, the transparent display device 100 according to an embodiment of the present invention may include two dam areas DMA, and may include two display areas DA having different areas (or sizes) through each of the dam areas DMA. Thus, when cutting is performed between the two dam areas DMA, the transparent display device 100 according to an embodiment of the present invention 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 invention 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 larger than the first area.

[0046] Therefore, the transparent display device 100 according to an embodiment of the present invention can be manufactured in various types (or various sizes) by providing the plurality of dam areas DMA, such that the display panel can be cut into different sizes. However, if not divided by a cutting device, the transparent display device 100 according to an embodiment of the present invention can also be implemented as a single transparent display device. Thus, as Figure 1As shown, when including two weir regions DMA, the transparent display device 100 according to an embodiment of the present invention can be implemented as a first transparent display device 101 having a first area, a second transparent display device 102 having a second area larger than the first area, and a third transparent display device 103 having a third area smaller than the second area. The display panel may include a substrate 110 and a counter substrate 200 joined to face the substrate 110.

[0047] Therefore, in the transparent display device 100 according to an embodiment of the present invention, compared with transparent display devices produced in various types (or various sizes) by different production processes (or manufacturing processes), production energy can be reduced.

[0048] On the other hand, even if the transparent display device 100 according to an embodiment of the present invention is divided into a first transparent display device 101 and a second transparent display device 102, moisture penetration can be reduced or prevented because the weir region DMA covers the edges of each of the first transparent display device 101 and the second transparent display device 102 in a closed-loop structure (or closed structure). Therefore, even if the transparent display device 100 according to an embodiment of the present invention is cut (or divided) into multiple transparent display devices, the reliability of each of the multiple transparent display devices against moisture penetration can be improved.

[0049] Hereinafter, with reference to Figures 1 to 3 the transparent display device 100 according to an embodiment of the present invention will be described in more detail.

[0050] With reference to Figure 1 the transparent display device 100 according to an embodiment of the present invention may include a source driver integrated circuit (hereinafter referred to as IC) 120, a flexible film 130, and a plurality of circuit boards 140, and a display panel including a substrate 110 having a plurality of gate drivers GD. Although not shown, the plurality of circuit boards 140 may be connected to a timing controller via a cable.

[0051] The display panel may include a substrate 110 and a counter substrate 200 (as Figure 3 shown).

[0052] 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.

[0053] The counter substrate 200 may be joined via a connection member RD ( Figure 3 shown in) and a filling member RF ( Figure 3Facing and joined to the first substrate 110 as shown. For example, the opposing substrate 200 may have a smaller size than 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 an encapsulation 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.

[0054] The transparent display device 100 according to an embodiment of the present invention may further include a connection member RD and a filling member RF.

[0055] According to an example, the dam region DMA may include the connection member RD. The connection member RD may be disposed between the first substrate 110 and the second substrate 200. Thus, the first substrate 110 and the second substrate 200 may face 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 absorption material (not shown) for absorbing external moisture or humidity that penetrates into the display region DA.

[0056] According to an example, the connection member RD of the dam region DMA may be disposed in the non-display region NDA and extend from the non-display region NDA to the display region 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 DMA. Thus, the connection member RD may prevent moisture and the like from penetrating into the display region DA through the gap between the first substrate 110 and the second substrate 200.

[0057] 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. Thus, the filling member RF may prevent the first substrate 110 and the second substrate 200 from being easily deformed due to external force.

[0058] On the other hand, the filling member RF or the 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 penetrating 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 to prevent moisture penetration. Each of the filling member RF and the connection member RD may further include an absorption material to absorb water or moisture, thereby increasing the moisture barrier effect. For example, the absorption material may be a getter.

[0059] On the other hand, the filling member RF may include a thermosetting transparent adhesive or a photo-curable transparent adhesive. In this case, the filling member RF can be used to bond the first substrate 110 and the second substrate 200 together with the connecting member RD. 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 DMA partially surrounds the display region DA, the filling member RF can be arranged to be surrounded by the connecting member RD. The connecting member RD can overlap with the plurality of pixels P by being partially disposed in the display region DA.

[0060] The connecting member RD according to one example may include an opaque material, but is not limited thereto and may include a transparent material. The filling member RF according to one example is disposed in the display region DA, so it may include a transparent material to improve the transmittance of the emitted light.

[0061] Referring again to Figure 1 , the gate driver GD supplies a gate signal to the gate lines according to the gate control signal input from the timing controller. When the source driver IC 120 is manufactured as a driving chip, the source driver IC 120 can be encapsulated in the flexible film 130 by a chip-on-film (COF) method or a chip-on-plastic (COP) method.

[0062] 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 120 and the lines connecting the pads to the circuit board 140 may be formed in the flexible film 130. The flexible film 130 can be attached to the pads by using an anisotropic conductive film, whereby the pads can be connected to the lines of the flexible film 130.

[0063] The first substrate 110 according to the example may include a display region DA and a non-display region NDA.

[0064] 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 provided in the central portion of the display panel (or the first substrate 110).

[0065] The display region DA according to the example may include gate lines, data lines, pixel drive power supply 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 (as Figure 2 shown). 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 a region configured to allow light to pass through the front and back surfaces of the display panel. Therefore, a user located on the front surface of the display panel can see an image or a background located on the back surface of the display panel via the transmissive portion TA.

[0066] Reference Figure 2 , each of the plurality of sub-pixels SP can be defined as a region that is the smallest unit for emitting actual light.

[0067] According to one example, at least four sub-pixels SP that are adjacent to each other among the plurality of sub-pixels SP and a transmissive portion TA constitute one unit pixel P. One unit pixel may include a red sub-pixel, a green sub-pixel, a blue sub-pixel, a white sub-pixel, and a transmissive portion TA, but is not limited thereto. In one example, one unit pixel may include at least one red sub-pixel, at least one green sub-pixel, at least one blue sub-pixel, at least one white sub-pixel, and at least one transmissive portion TA.

[0068] In another example, three sub-pixels SP that are adjacent to each other among the plurality of sub-pixels SP and a transmissive portion TA constitute one unit pixel. One unit pixel may include, but is not limited to, at least one red sub-pixel, at least one green sub-pixel, at least one blue sub-pixel, and a transmissive portion TA.

[0069] 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) inserted between an anode electrode (or a first electrode) and a cathode electrode (or a second electrode).

[0070] The light-emitting element layers respectively provided in the plurality of sub-pixels SP may emit light of their respective different colors separately or emit white light together. According to the 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 white light into light of their respective different colors. In this case, according to the example, the white sub-pixel may not include a color filter. In the transparent display device 100 according to an embodiment of the present invention, the red sub-pixel may be the first sub-pixel SP1, the white sub-pixel may be the second sub-pixel SP2, the green sub-pixel may be the third sub-pixel SP3, and the blue sub-pixel may be the fourth sub-pixel SP4.

[0071] When a gate signal is input from a gate line by using a thin film transistor, each sub-pixel 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 portion of each sub-pixel may emit light having a predetermined brightness according to the predetermined current. This will be described later with reference to Figure 3 the structure of each sub-pixel SP.

[0072] The non-display area NDA can be an area where an image is not displayed, and can be a peripheral circuit area, a signal supply area, a non-active area, or a border area. The non-display area NDA can be configured to surround the display area DA. That is, the non-display area NDA can be set to surround the display area DA.

[0073] The transparent display device 100 according to an embodiment of the present invention may include a plurality of gate drivers GD disposed in the non-display area NDA. As Figure 1 shown, the plurality of gate drivers GD may be disposed in the non-display area NDA in a first direction (Y-axis direction). The plurality of gate drivers GD may be disposed parallel to each other, with the display area DA inserted therebetween, but is not limited thereto.

[0074] Each of the plurality of gate drivers GD provides 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 140. 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 driver GIP manner. Alternatively, the plurality of gate drivers GD may be made of a driving chip, mounted on a flexible film, and attached to the non-display area NDA on two outer sides of the display area DA of the display panel by a TAB (tape automated bonding) method. The gate driver GD according to an example may include a plurality of gate driver circuits (or GIP circuits) and a plurality of GIP wirings. In one example, the GIP wiring may include a plurality of signal wirings and a plurality of power supply wirings.

[0075] The plurality of gate drivers GD may be separately disposed on the left side of the display area DA (i.e., the second non-display area NDA2) and the right side of the display area DA (i.e., the third non-display area NDA3). 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 1 shown, the transparent display device 100 according to an embodiment of the present invention may further include a plurality of first lines SL1 intersecting the plurality of second lines SL2.

[0076] 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.

[0077] 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.

[0078] A 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, or a pixel power line EVDD and a common power shorting bar EVSS provided in the first non-display area NDA1. The pixel power shorting bar EVDD and the common power shorting bar EVSS may be provided in the first non-display area NDA1 between the pad area PA and the display area DA with respect to the display area DA, and in the fourth non-display area NDA4 provided facing the pad area PA. The first direction (X-axis direction) may be a direction parallel to the data line.

[0079] The pixel power shorting bar EVDD may include a first pixel power shorting bar EVDD1 provided in the first non-display area NDA1 and a second pixel power 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 a second direction (X-axis direction), with the display area DA inserted between the first pixel power shorting bar EVDD1 and the second pixel power shorting bar EVDD2.

[0080] The common power shorting bar EVSS may include a first common power shorting bar EVSS1 provided in the first non-display area NDA1 and a second common power shorting bar EVSS2 provided in the fourth non-display area NDA4. The first common power shorting bar EVSS1 and the second common power shorting bar EVSS2 may be provided parallel to the second direction (X-axis direction), with the display area DA inserted between the first common power shorting bar EVSS1 and the second common power shorting bar EVSS2. According to an example, the first common power shorting bar EVSS1 and the second common power shorting bar EVSS2 may be provided closer to the edge of the first substrate 110 than the first pixel power shorting bar EVDD1 and the second pixel power shorting bar EVDD2.

[0081] The plurality of first lines SL1 may include pixel power lines connected to the pixel power shorting bar EVDD and common power lines connected to the common power shorting bar EVSS. In one embodiment, the plurality of first lines SL1 may further include a plurality of data lines and a reference line.

[0082] Hereinafter, when the first line SL1 includes a plurality of lines, one first line SL1 may refer to a signal line group composed of a plurality of lines. For example, when the first line SL1 includes two data lines, a pixel power supply line, a common power supply line, and a reference line, one first line SL1 may refer to a group of signal lines including two data lines, a pixel power supply line, a common power supply line, and a reference line.

[0083] The pixel P is set 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 the area where the pixel P emits light.

[0084] Referring to Figure 2 , each pixel 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 to be arranged in the first direction (Y-axis direction), but the arrangement order of each of the sub-pixels SP1, SP2, SP3, SP4 may vary.

[0085] Since the transparent display device 100 according to an embodiment of the present invention 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 red color filter 210, 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; the fourth sub-pixel SP4 may be provided with a blue color filter so as to emit blue light.

[0086] Hereinafter, referring to Figure 2 and 3 , the pixel P of the transparent display device 100 according to an embodiment of the present invention will be described.

[0087] Referring to Figure 2 and 3 , each of the plurality of pixels P provided in the display area DA may include a plurality of sub-pixels SP and a transmissive portion TA. The transmissive portion TA may be provided adjacent to each of the plurality of sub-pixels SP, as shown in Figure 2 . As shown in Figure 3As shown, the connection member RD can be disposed in the sub-pixel SP located in the dam region DMA. In addition, the filling member RF can be disposed in the sub-pixel SP located in the display region DA other than the dam region DMA. However, as Figure 3 shown, neither the filling member RF nor the connection member RD may be disposed in the region where the cutting portion CP is provided. Since the transparent display device 100 according to an embodiment of the present invention is configured such that neither the filling member RF nor the connection member RD is formed in the cutting portion CP. Therefore, the transparent display device 100 according to an embodiment of the present invention can not only reduce the manufacturing cost due to material saving, but also reduce the defect rate because the region where the filling member RF and the connection member RD are not provided is cut, and thus can contribute to cutting. In Figure 3 , the connection member RD can be disposed in the sub-pixel SP located in the dam region DMA, and the filling member RF can be disposed in the sub-pixel SP located in the display region DA other than the dam region DMA. However, as Figure 3 shown, neither the filling member RF nor the connection member RD may be disposed in the region where the cutting portion CP is provided. By not forming both the filling member RF and the connection member RD in the cutting portion CP, not only can the manufacturing cost be reduced due to material saving, but also the defect rate can be reduced because the region where the filling member RF and the connection member RD are not provided is cut, thereby contributing to cutting.

[0088] On the other hand, since the structure of the sub-pixel SP in which the filling member RF is provided is the same as the structure of the sub-pixel SP in which the connection member RD is provided, as Figure 3 shown, the description of the sub-pixel SP in which the filling member RF is provided is replaced by the description of the sub-pixel SP in which the connection member RD is provided.

[0089] Referring again to Figure 3 , each of the plurality of sub-pixels SP can be disposed on the first substrate 110 and can include a buffer layer BL to prevent moisture from penetrating into the thin film transistor 112.

[0090] In addition, each of the sub-pixels SP according to an embodiment of the present invention includes an inorganic layer 111, a planarization layer 113 provided on the inorganic layer 111, an anode electrode 114 (or a first electrode 114) provided on the planarization layer 113, a bank portion 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 provided on the upper surface of the buffer layer BL and includes a gate insulating layer 111a (see Figure 12 ), an interlayer insulating layer 111b, a first passivation layer 111c, and a second passivation layer 111d.

[0091] 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.

[0092] The 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 electrically connected to the pixel power line EVDD may be provided. The buffer layer BL may be entirely provided on one surface (or the front surface) of the first substrate 110. The buffer layer BL may be used to prevent the materials contained in the first substrate 110 from diffusing into the transistor layer during the high-temperature process of the thin film transistor manufacturing process. Optionally, the buffer layer BL may be omitted according to the situation.

[0093] The thin film transistor 112 according to the example may include an active layer 112a, a gate 112b, a source 112c, and a drain 112d.

[0094] 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, and the channel region is inserted between the drain region and the source region.

[0095] The active layer 112a may be formed of a semiconductor material based on any one of amorphous silicon, polycrystalline silicon, oxide, and organic material.

[0096] 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.

[0097] The gate 112b may be formed on the gate insulating layer 111a to overlap with the channel region of the active layer 112a.

[0098] The interlayer insulating layer 111b may be formed on the gate 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.

[0099] The source electrode 112c can be electrically connected to the source region of the active layer 112a through a source contact hole provided in the interlayer insulating layer 111b and overlapping with the source region of the active layer 112a. In addition, the source electrode 112c can be connected to a wiring LS electrically connected to the pixel power supply line EVDD through a contact hole provided in the interlayer insulating layer 111b and the buffer layer BL and not overlapping with the source region of the active layer 112a. The source electrode 112c can be connected to the anode electrode 114 via a connection electrode CE penetrating the first passivation layer 111c.

[0100] 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 and overlapping with the drain region of the active layer 112a.

[0101] 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 alloy layer, or a multi-layer of two or more layers that is the same as or different from the gate electrode.

[0102] In addition, the circuit region may further include first and second switching thin film transistors provided together with the thin film transistor 112, and a capacitor. Since each of the first and second switching thin film transistors is provided on the circuit region of the pixel P and has the same structure as 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 inserted between the gate electrode 112b and the source electrode 112c.

[0103] 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 (not shown) provided below the active layer 112a of at least one of the thin film transistor 112, the first switching thin film transistor, and 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 via the first substrate 110, thereby minimizing the change in the threshold voltage of the transistor caused by external light.

[0104] 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.

[0105] The second passivation layer 111d may be disposed on the first substrate 110 to cover the pixels (or the light-emitting regions EA). For example, the second passivation layer 111d may be disposed to cover the connection electrode CE between the first passivation layer 111c and the planarization layer 113. The second passivation layer 111d may be formed in the entire circuit region and the light-emitting region.

[0106] 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.

[0107] The planarization layer 113 according to the example may be formed to be relatively thick, so that a flat surface may be provided 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 photo acryl, benzocyclobutene, polyimide, and fluororesin.

[0108] 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 connection electrode CE through a contact hole passing through the planarization layer 113 and the second passivation layer 111d, and thus is connected to the source or drain of the thin-film transistor 112.

[0109] 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.

[0110] When the transparent display device 100 is set in a 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 (Ti / Al / Ti) of a metal material having a high reflectivity such as aluminum and titanium, a stacked structure (ITO / Al / ITO) of aluminum and ITO, an Ag alloy, and a stacked structure (ITO / Ag alloy / ITO) of an Ag alloy and ITO. The Ag alloy may be an alloy such as silver (Ag), palladium (Pd), and copper (Cu).

[0111] When the transparent display device 100 is set in a bottom emission mode, the anode electrode 114 can be formed of a transparent conductive material (TCO) that can transmit light (such as ITO and IZO) or a semi-transmissive conductive material (such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag)).

[0112] At the same time, the material constituting the anode electrode 114 can include MoTi. The anode electrode 114 can be the first electrode or a pixel electrode.

[0113] The bank 115 is a non-light-emitting region that does not emit light and can be provided to surround each light-emitting region of the plurality of sub-pixels SP. That is, the bank 115 can divide (or define) the corresponding light-emitting region EA.

[0114] The bank 115 can be formed on the planarization layer 113 to cover the edge of the anode electrode 114, thereby dividing (or defining) the light-emitting regions EA (or light-emitting portions) of the plurality of sub-pixels SP.

[0115] The bank 115 can be formed to cover the edge of each anode electrode 114 included in each sub-pixel SP and expose a part of each anode electrode 114. Thus, the bank 115 can cover the end portion of each anode electrode 114, thereby preventing a short circuit between the anode electrode 114 and the cathode electrode 117. The exposed portion of the anode electrode 114 not covered by the bank 115 can be the light-emitting region EA (or light-emitting portion).

[0116] 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.

[0117] 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.

[0118] The organic light-emitting layer 116 can be formed by 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 when an electric field is formed between the anode electrode 114 and the cathode electrode 117, the organic light-emitting layer 116 can emit white light.

[0119] A color filter 210 suitable for the color of the corresponding sub-pixel SP may be formed on the second substrate 200. For example, a red color filter may be provided in the red sub-pixel SP1, a green color filter may be provided in the green sub-pixel, and a blue color filter may be provided in the blue sub-pixel. The white sub-pixel may not include a color filter because the organic light-emitting layer 116 emits white light.

[0120] The cathode electrode 117 is formed on the organic light-emitting layer 116. The cathode electrode 117 may be a common layer formed in the sub-pixel SP. The cathode electrode 117 may be made of a transparent metal material, a semi-transmissive metal material, or a metal material with a high reflectivity.

[0121] 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 a semi-transmissive conductive material (such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag)).

[0122] 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 with 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.

[0123] 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.

[0124] In the transparent display device 100 according to an embodiment of the present invention, 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.

[0125] 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 DMA in (or on the periphery of) the non-display area NDA of the display panel. In addition, since the transparent display device 100 according to an embodiment of the present invention includes a dam area DMA provided in the display area DA and extending into a part of the display area DA, the encapsulation layer 118 may also contact the dam area DMA (or the connection member RD included in the dam area DMA) even in the display area DA.

[0126] Therefore, moisture penetration toward the display area DA of the transparent display device 100 according to an embodiment of the present invention can be prevented, and even when it is divided into multiple pieces through the cutting portion CP, moisture penetration toward the display area DA can be effectively prevented.

[0127] Referring again to Figure 3 , the color filter 210 and the black matrix 220 can be disposed between the encapsulation layer 118 and the second substrate 200. In one example, the color filter 210 can be disposed corresponding to each of a plurality of sub-pixels SP (or a plurality of light-emitting areas EA) on the second substrate 200 (or the opposing substrate).

[0128] As described above, the white sub-pixel (i.e., the second sub-pixel SP2) may not be provided with a color filter because the organic light-emitting layer 116 emits white light. On the other hand, the red sub-pixel (i.e., the first sub-pixel SP1) may be provided with the color filter 210 between the encapsulation layer 118 and the second substrate 200.

[0129] As Figure 3 shown, the black matrix 220 can be disposed at the edge of the color filter 210. Therefore, the black matrix 220 can prevent color mixing between the sub-pixels SP. The black matrix 220 can include a black-based material and can be disposed in the non-light-emitting area NEA. In one example, the black matrix 220 can be formed on the second substrate 200 and at least partially overlap with the bank 115, thereby reducing the cell gap between the organic light-emitting layer 116 and the second substrate 200, thereby preventing mixing between the sub-pixels.

[0130] The transparent display device 100 according to an embodiment of the present invention may further include a plurality of upper organic layers 230 covering the color filter 210. As Figure 3 shown, each of the plurality of upper organic layers 230 can be configured to cover not only the color filter 210 but also the black matrix 220.

[0131] In one example, the plurality of upper organic layers 230 can be spaced apart from each other, with a permeable portion or a transmissive portion TA inserted therebetween. Since the upper organic layer 230 is an organic layer, it can be a moisture permeable path from the outside to the display area DA. However, in the transparent display device 100 according to an embodiment of the present invention, the plurality of upper organic layers 230 can be spaced apart from each other, so that the moisture penetration path toward the display area DA can be blocked.

[0132] In addition, the transparent display device 100 according to an embodiment of the present invention is configured such that a plurality of upper organic layers 230 are not provided in the transmissive portion TA, and thus, the transmittance can be increased compared to the case where the organic layers are provided in the transmissive portion TA.

[0133] On the other hand, in the case where a transmissive region or a transmissive portion TA is inserted between a plurality of upper organic layers 230 spaced apart from each other, a connection member RD ( Figure 3 as shown in) may be provided between the plurality of upper organic layers 230. That is, the connection member RD may be partially provided between the plurality of upper organic layers 230. In one example, the connection member RD may be entirely provided between the plurality of upper organic layers 230, or may be partially provided between the plurality of upper organic layers 230, as Figure 3 shown. This is a description of the layout structure in the dam region DMA, and in the display region DA where the dam region DMA is not provided, a filling member RF may be partially provided between the plurality of upper organic layers 230.

[0134] The transparent display device 100 according to an embodiment of the present invention may include N (N is an integer greater than 1) dam regions DMA on the first substrate 110. For example, as Figure 1 shown, the transparent display device 100 according to an embodiment of the present invention may include two dam regions DMA. Each of the two dam regions DMA may be configured in a closed-loop shape (or closed form) that encloses a different region of the display region DA. However, non-limitingly, the two DMAs may be configured in a closed loop (or closed form) that encloses the same region of the display region DA.

[0135] Each of the plurality of dam regions DMA may include a first dam provided in the non-display region NDA and a second dam provided to extend from the non-display region NDA to the display region DA. As Figure 1 shown, the first dam and the second dam may be continuous with each other, and thus, are provided as a single closed dam region DMA. As Figure 1 shown, the second dam may be provided across the display region DA. Therefore, the transparent display device 100 according to an embodiment of the present invention may have the following structural feature: the dam region DMA overlaps with the pixels P (or sub-pixels SP) provided in the display region DA in the third direction (Z-axis direction).

[0136] Referring to Figure 1 and 2, the transparent display device 100 according to an embodiment of the present invention may further include a cutting portion CP disposed between N weir regions DMA. The cutting portion CP according to an example may be a portion cut by a cutting device such as a laser or a wheel. Therefore, when the cutting portion CP is cut by the cutting device, the transparent display device 100 according to an embodiment of the present invention can be divided into a first transparent display device 101 and a second transparent display device 102. In Figure 1 , a transparent display device 100 according to an embodiment of the present invention is shown, which is configured to be divided into two transparent display devices having different areas (or sizes), but is not limited thereto, and it may be configured to be divided into two transparent display devices having the same area (or size).

[0137] Referring to Figure 1 As an example, the transparent display device 100 according to an embodiment of the present invention may be configured to be divided into a first transparent display device 101 having a first area and a second transparent display device 102 having a second area larger than the first area via the cutting portion CP. The 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 the display area DA, so it cannot substantially be used as a transparent display device. However, it is 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.

[0138] 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 connecting member RD may not be provided in the area 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 invention can have a reduced manufacturing cost because the filling member RF and the connecting member RD are not formed in the area that cannot be used as a transparent display device, and the defect rate can be reduced because the area where the filling member RF and the connecting member RD are not provided can be cut, and it can contribute to cutting.

[0139] As a result, the transparent display device 100 according to an embodiment of the present invention may be provided with a plurality of weir regions DMA corresponding to the number of the plurality of gate drivers GD. Therefore, the transparent display device 100 according to an embodiment of the present invention can be set 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 weir regions DMA).

[0140] Referring again to Figure 1, in a transparent display device 100 according to an embodiment of the present invention, each of a plurality of gate drivers GD may be disposed in a non-display area NDA in a first direction (Y-axis direction). Here, the cutting portion CP may be disposed parallel to the gate driver GD. Because when the cutting portion CP is disposed in a direction intersecting the gate driver GD, the gate driver GD may be damaged by a cutting device and may not be operable as a transparent display device. Therefore, in the transparent display device 100 according to an embodiment of the present invention, the cutting portion CP may be disposed parallel to the gate driver GD. For example, as Figure 1 shown, the cutting portion CP may be disposed between two gate drivers GD1 and GD2 in the first direction (Y-axis direction). Therefore, the transparent display device 100 according to an embodiment of the present invention may be cut in the first direction (Y-axis direction) by a cutting device, and thus may be configured to be divided into a first transparent display device 101 and a second transparent display device 102 having different areas (or sizes).

[0141] As Figure 1 shown, the cutting portion CP is disposed in the vertical direction, and thus may be represented by a vertical cutting line. Alternatively, when the transparent display device 100 is cut in one direction, the cutting portion CP may be represented by a one-way cutting line.

[0142] On the other hand, the transparent display device 100 according to an embodiment of the present invention 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 1 shown. For example, the cutting portion CP may include a first cutting portion CP1 disposed between the first transparent display device 101 and the third transparent display device 103 and a second cutting portion CP2 disposed between the third transparent display device 103 and the second transparent display device 102.

[0143] When the cutting device cuts the first cutting portion CP1 and the second cutting portion CP2, one transparent display may be divided into three transparent display units, and the first transparent display 101 having the first gate driver GD1 and the second transparent display unit 102 having the second gate driver GD2 may be used as separate transparent displays having different areas (or sizes). The third transparent display device 103 disposed between the first cutting portion CP1 and the second cutting portion CP2 does not have a gate driver, and thus may not be substantially used as a transparent display device. However, as described above, when the third transparent display device 103 may be connected to a gate driver, it may also be used as a transparent display device.

[0144] Referring to Figure 1, in a transparent display device 100 according to an embodiment of the present invention, a circuit board 140 may include a first circuit board 141, a second circuit board 142, a third circuit board 143, and a fourth circuit board 144. For example, the first circuit board 141 may be connected to a first transparent display device 101. The first circuit board 141 may be connected to a timing controller via a cable. The second circuit board 142 may be connected to a third transparent display device 103. As described above, when the third transparent display device 103 cannot be used as a transparent display device, the second circuit board 142 may not be connected to the timing controller unit. The third circuit board 143 and the fourth circuit board 144 may be connected to a second transparent display device 102. The third circuit board 143 and the fourth circuit board 144 may be connected to a timing controller via a cable. Therefore, when the transparent display device 100 according to an embodiment of the present invention 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 sizes).

[0145] A transparent display device 100 according to an embodiment of the present invention may include a planarization layer 113 disposed on a 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 an upper surface of a buffer layer BL.

[0146] A transparent display device 100 according to an embodiment of the present invention may include an undercut portion UC, and the planarization layer 113 and the plurality of inorganic layers 111 are partially removed from the undercut portion UC.

[0147] An 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 a transmissive portion TA, that is, the transmissive portion TA may include the undercut portion UC.

[0148] The undercut portion UC is used to disconnect an 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 invention, the organic light-emitting layer 116, a cathode electrode 117, and a encapsulation layer 118 are formed after the undercut portion UC is formed, the organic light-emitting layer 116 may be disconnected by the undercut portion UC. Therefore, moisture penetration of the transparent display device 100 according to an embodiment of the present invention via the organic light-emitting layer 116 may be prevented.

[0149] According to an example, the undercut portion UC may be provided as M (M is an integer greater than 0) in the transmissive portion TA. Since the undercut portion UC is a region where the organic light-emitting layer 116 is discontinuous, moisture penetration into the display region DA can 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 invention, the cutting portion CP may be any one of the M undercut portions UC. For example, as Figure 3 shown, the undercut portion UC may be formed on both sides of the planarization layer 113' provided on the transmissive portion TA. The planarization layer 113' provided in the transmissive region TA is provided in the shape of an island spaced apart from the planarization layer 113 provided in the light-emitting region EA, and thus may be represented by the island OC or the first planarization layer. In contrast, the planarization layer 113 provided to overlap with 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 capping OC or the second planarization layer.

[0150] For example, as Figure 2 shown, the two planarization layers 113' (or the first planarization layer 113') provided on the transmissive region TA may be parallel to the first direction (Y-axis direction) on the transmissive region TA. In this case, one transmissive region TA may have four undercut portions UC provided therein, as Figure 3 shown. Any one of these four undercut portions UC may be the cutting portion CP. However, it is not limited thereto, and the cutting portion CP may be formed in the light-emitting region EA or the transmissive region TA instead of in the undercut portion UC. In addition, the cutting portion CP may be provided in a region that is not the dam region DMA and may not be provided in a region where the filling member RF is provided. This is because when the cutting portion CP is provided in a region where the filling member RF is provided, moisture penetration through an organic layer such as the organic light-emitting layer may occur when cut by a cutting device. Thus, in the transparent display device 100 according to an embodiment of the present invention, 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 region 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 as an example.

[0151] The transparent display device 100 according to an embodiment of the present invention can be implemented as a plurality of transparent display devices having different areas or the same area when any one of the M undercut portions UC is cut by a cutting device. Since the organic light-emitting layer 116 is discontinuous at the undercut portion UC, moisture penetration through the organic light-emitting layer 116 can be prevented even when the transparent display device 100 is cut by a cutting device. In addition, since the cutting portion CP is provided between the plurality of dam areas DMA, a structure in which the dam area DMA surrounds the display area DA can be provided at the edge of each transparent display device (e.g., the first transparent display device 101 and the second transparent display device 102) even when the transparent display device 100 is cut by a cutting device. In addition, in each transparent display device (e.g., the first transparent display device 101 and the second transparent display device 102), the getter included in the connection member RD provided at the edge may be able to absorb moisture and oxygen, thereby further maximizing the prevention of moisture penetration toward the display area DA.

[0152] Referring to Figure 3 , in the transparent display device 100 according to an embodiment of the present invention, the organic light-emitting layer 116 may be discontinuous at the undercut portion UC. In addition, each of the cathode electrode 117 and the encapsulation layer 118 may also be discontinuous at the undercut portion UC. Therefore, as Figure 3 shown, the first planarization layer 113', the organic light-emitting layer 116 provided on the first planarization layer 113', the cathode electrode 117, and the encapsulation layer 118 may be provided in an island shape. Therefore, on both sides of the first planarization layer 113', the connection member RD may be provided all the way to the undercut portion UC. The transparent display device 100 according to an embodiment of the present invention can further prevent moisture penetration because the connection member RD including the getter is provided all the way to the undercut portion UC. However, it is not limited thereto, and the connection member RD may be formed only partially on one side of the first planarization layer 113'.

[0153] On the other hand, the transparent display device 100 according to an embodiment of the present invention can be configured such that various types (or various sizes) of transparent display devices can be manufactured without an additional mask process by a process of forming the undercut portion UC that disconnects the organic light-emitting layer 116. Therefore, compared with the case of manufacturing various types (or various sizes) of transparent display devices by various processes, production energy can be reduced.

[0154] Figure 4 is Figure 3 a schematic cross-sectional view of another example of part C shown.

[0155] Referring to Figure 4, in the transparent display device 100 according to an embodiment of the present invention, the organic light-emitting layer 116 may be discontinuous at the undercut portion UC, and each of the cathode electrode 117 and the encapsulation layer 118 may be continuous at the undercut portion UC. This can be achieved by forming the width of the undercut portion UC to be narrower than that of the Figure 3 undercut portion UC. Here, referring to Figure 4 , the width of the undercut portion UC may refer to the length of the upper surface of the buffer layer BL adjacent to the undercut portion UC in the second direction (X-axis direction). Therefore, the transparent display device 100 according to Figure 4 may be arranged in a structure in which the organic light-emitting layer 116 is discontinuous at the undercut portion UC and each of the cathode electrode 117 and the encapsulation layer 118 is continuous.

[0156] On the other hand, since the undercut portion UC is formed and then the organic light-emitting layer 116, the cathode electrode 117, and the encapsulation layer 118 are sequentially deposited under vacuum, the undercut portion UC may partially include a vacuum region VA. As Figure 4 shown, the vacuum region VA may be sealed by the buffer layer BL, the cathode electrode 117, and the first planarization layer 113'.

[0157] Figure 5 is a schematic cross-sectional view showing another example of part C shown in Figure 3 .

[0158] Referring to Figure 5 , in the transparent display device 100 according to an embodiment of the present invention, each of the organic light-emitting layer 116 and the cathode electrode 117 may be discontinuous at the undercut portion UC, and the encapsulation layer 118 may be continuous at the undercut portion UC. This can be achieved by forming the width of the undercut portion UC to be narrower than that of the Figure 3 undercut portion UC and wider than that of the Figure 4 undercut portion UC. Here, referring to Figure 5 , the width of the undercut portion UC may represent the length of the upper surface of the buffer layer BL adjacent to the undercut portion UC in the second direction (X-axis direction). Therefore, the transparent display device 100 according to Figure 5 may be arranged in a structure in which each of the organic light-emitting layer 116 and the cathode electrode 117 is discontinuous at the undercut portion UC and the encapsulation layer 118 is continuous at the undercut portion UC.

[0159] On the other hand, since the undercut portion UC is formed and then the organic light-emitting layer 116, the cathode electrode 117, and the encapsulation layer 118 are sequentially deposited under vacuum, the undercut portion UC may partially include a vacuum region VA. As Figure 5 shown, the vacuum region VA may be sealed by the buffer layer BL and the encapsulation layer 118.

[0160] Figure 6 is Figure 2 a schematic cross-sectional view of line II-II' shown in

[0161] Referring to Figure 2 and Figure 6 in a transparent display device 100 according to an embodiment of the present invention, the undercut portion UC may include a blocking portion BKP, and the blocking portion BKP partially overlaps with the planarization layer 113' (or the first planarization layer 113') between the first passivation layer 111c and the second passivation layer 111d. For example, the blocking portion BKP may be formed at the intersection of the first planarization layer 113' and the second line SL2 (or the gate line GL), as shown in Figure 2 shown.

[0162] 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 when forming the undercut portion UC. Therefore, as shown in Figure 6 shown, the blocking portion BKP is disposed on the inorganic layer (or the interlayer insulating layer 111b and the first passivation layer 111c) on the second line SL2 (or the gate line GL), and thus protects the inorganic layer (or the interlayer insulating layer 111b and the first passivation layer 111c) from the influence of the etching solution. Therefore, when depositing the cathode electrode 117, contact between the second line SL2 (or the gate line GL) and the cathode electrode 117 can be prevented. The blocking portion BKP according to an example may include a metal material having high resistance to the etchant. The blocking portion BKP may be formed in the same layer as the connection electrode CE.

[0163] Referring to Figure 6 the blocking portion BKP may be set to have a wider width than the undercut portion UC in the second direction (X-axis direction). Therefore, the edge of the blocking portion BKP may be covered by the second passivation layer 111d. The organic light-emitting layer 116, the cathode electrode 117, and the encapsulation layer 118 (each of which is discontinuous through the undercut portion UC) may contact the upper surface of the blocking portion BKP.

[0164] On the other hand, as shown in Figure 6 the filling member RF for bonding the first substrate 110 and the second substrate 200 may be disposed on the upper side of the encapsulation layer 118 and the upper side of the blocking portion BKP.

[0165] Figure 7 is Figure 2 a schematic plan view of another example of

[0166] According to Figure 2 the transparent display device 100 has two first planarization layers 113' extending in the first direction (Y-axis direction) in the transmissive portion TA. Therefore, according toFigure 2 The transparent display device 100 can be provided with four undercuts UC extending in the first direction (Y-axis direction) along the edge of each of the two first planarization layers 113'. Therefore, according to Figure 2 The transparent display device 100 can be provided with undercuts UC (or cutting portions CP) that can be cut by a cutting device at various positions, so that a transparent display device having an area (or size) that meets various needs of users can be easily manufactured.

[0167] In contrast, according to Figure 7 The transparent display device 100 has one first planarization layer 113' that is provided to extend in the first direction (Y-axis direction) in the transmissive portion TA. Therefore, according to Figure 7 The transparent display device 100 can be provided with two undercuts UC provided along the edge of each first planarization layer 113' in the first direction (Y-axis direction). Since the number of undercuts UC provided in the transmissive portion TA is small, the transparent display device 100 according to Figure 7 can be more resistant to external shocks. In Figure 7 , one first planarization layer 113' is shown to be provided on one pixel P, but it is not limited thereto, and one first planarization layer 113' can be provided on every two pixels P.

[0168] Figure 8 is a schematic plan view showing Figure 2 another example of Figure 9 is Figure 8 a schematic cross-sectional view of line III-III' shown in

[0169] According to Figure 8 The transparent display device 100 has one first planarization layer 113' extending in the first direction (Y-axis direction) from the transmissive portion TA. However, different from the transparent display device 100 according to Figure 2 in the transparent display device 100 according to Figure 8 the first planarization layer 113' is provided with a wider width in the second direction (X-axis direction). Therefore, the transparent display device 100 according to Figure 8 can be maximally resistant to external shocks because one first planarization layer 113' is provided in the transmissive portion TA with a wider width in the second direction (X-axis direction), as shown in Figure 9

[0170] Figure 10 is Figure 1 an enlarged plan view of part B shown in Figure 11 is Figure 10 a schematic cross-sectional view of line IV-IV' shown in

[0171] Referring to​Figure 10 In the transparent display device 100 according to an embodiment of the present invention, the first substrate 110 may include a pixel power shorting bar EVDD disposed in the non-display area NDA in the second direction (X-axis direction).

[0172] For example, the pixel power shorting bar EVDD may include a first pixel power shorting bar EVDD1 disposed in the first non-display area NDA1. The first pixel power shorting bar EVDD1 includes a first sub-pixel power shorting bar EVDD1-1 extending in the second direction (X-axis direction) and a second sub-pixel power shorting bar EVDD1-2 disposed on the first sub-pixel power shorting bar EVDD1-1 and smaller in size than the first sub-pixel power shorting bar EVDD1-1. As Figure 10 shown, each of the first sub-pixel power shorting bar EVDD1-1 and the second sub-pixel power shorting bar EVDD1-2 may intersect the first planarization layer 113' in the first non-display area NDA1.

[0173] Referring to Figure 11 , the first sub-pixel power shorting bar EVDD1-1 may be disposed between the first substrate 110 and the buffer layer BL. The second sub-pixel power shorting bar EVDD1-2 may be disposed between the interlayer insulating layer 111b and the first passivation layer 111c and may be connected to the first sub-pixel power shorting bar EVDD1-1 through a contact hole CNT.

[0174] As Figure 11 shown, a blocking portion BKP may be disposed on the pixel power shorting bar EVDD. Thus, the blocking portion BKP may protect the pixel power shorting bar EVDD (or the second sub-pixel power shorting bar EVDD1-2) from the etchant used to form the undercut portion UC. The blocking portion BKP according to an example may include a metal material having high resistance to the etchant and may be formed in the same layer as the connection electrode CE.

[0175] Referring to Figure 11 , the blocking portion BKP may be disposed to have a width wider than that of the undercut portion UC in the second direction (X-axis direction). Thus, the edge of the blocking portion BKP may be covered by the second passivation layer 111d. Each of the organic light-emitting layer 116, the cathode electrode 117, and the encapsulation layer 118 that are discontinuous through the undercut portion UC may be in contact with the upper surface of the blocking portion BKP, respectively. On the other hand, since Figure 11 is a cross-sectional view of the first non-display area NDA1, thus different from Figure 6 , a bank portion 115 may be disposed on the planarization layer 113 (or the second planarization layer 113).

[0176] Figure 12Schematic cross-sectional view of a transparent display device according to a second embodiment of the present invention.

[0177] Referring to Figure 12 , except that the second substrate 200 (or the opposite substrate) further includes an upper inorganic layer 240 disposed to cover the plurality of upper organic layers 230, the transparent display device 100 according to the second embodiment of the present invention is the same as the above-mentioned transparent display device according to Figure 1 . Therefore, the same reference numerals are assigned to the same configurations, and only the different configurations will be described hereinafter.

[0178] In the case of the above-mentioned transparent display device according to Figure 1 , since the plurality of upper organic layers 230 are disposed spaced apart from each other on the second substrate 200, moisture penetration through the upper organic layers 230 can be prevented. In addition, due to the plurality of upper organic layers 230 disposed spaced apart from each other on the second substrate 200, when the first substrate 110 is bonded to the second substrate 200, overflow in the direction D1 from the connection member RD toward the filling member RF and / or in the opposite direction D2 (or in the direction D2 toward the region where neither the filling member RF nor the connection member RD exists) can be reduced or prevented. For example, the direction D2 toward the region where neither the filling member RF nor the connection member RD exists may be the direction toward the region where the cutting portion CP is provided. For example, the region where neither the filling member RF nor the connection member RD exists may be the region where the cutting portion CP is provided in the third transparent display device 103 in Figure 1 .

[0179] In contrast, in the case of the transparent display device according to Figure 12 , the upper inorganic layer 240 may be disposed to cover the plurality of upper organic layers 230 disposed spaced apart from each other. Therefore, the upper inorganic layer 240 can contact the second substrate 200 between the plurality of upper organic layers 230. Since the upper inorganic layer 240 contacts the second substrate 200 between the plurality of upper organic layers 230, moisture penetration through the plurality of upper organic layers 230 can be maximally prevented.

[0180] In addition, in the case of the transparent display device according to Figure 12 , since the upper inorganic layer 240 contacts the second substrate 200 between the plurality of upper organic layers 230, the upper inorganic layer 240 may be provided in a groove (or trench) shape between the plurality of upper organic layers 230. Here, the groove (or trench) may be in the shape of a concave depression in the first substrate 110 in the direction toward the second substrate 200. Therefore, in accordance with Figure 12In the transparent display device 100, since the upper inorganic layer 240 is provided in the shape of a groove, when the first substrate 110 is joined to the second substrate 200, it is possible to reduce or prevent overflow in the direction D1 from the connection member RD toward the filling member RF and / or in the opposite direction D2 (or in the direction D2 toward the region where neither the filling member RF nor the connection member RD exists).

[0181] Meanwhile, since Figure 12 is Figure 2 a cross-sectional view in the second direction (X-axis direction), sub-pixels SP (or first sub-pixels SP1) that emit light of the same color can be arranged adjacent to each other in the second direction (X-axis direction).

[0182] Figure 13 FIG. is a schematic cross-sectional view of a transparent display device according to a third embodiment of the present invention.

[0183] Now referring to Figure 13 , except for changing the structure of each of the plurality of upper organic layers 230 provided on the second substrate 200 (or the opposing substrate), the transparent display device 100 according to the third embodiment of the present invention is the same as the above-described transparent display device according to Figure 1 . Accordingly, the same reference numerals are assigned to the same configurations, and only the different configurations will be described below.

[0184] In the case of the above-described transparent display device according to Figure 1 , since the plurality of upper organic layers 230 are arranged spaced apart from each other on the second substrate 200, moisture penetration through the upper organic layers can be prevented. Further, due to the plurality of upper organic layers 230 spaced apart from each other on the second substrate 200, when the first substrate 110 is joined to the second substrate 200, it is possible to reduce or prevent overflow in the direction D1 from the connection member RD toward the filling member RF and / or in the opposite direction D2 (or in the direction D2 toward the region where neither the filling member RF nor the connection member RD exists).

[0185] In contrast, in the case of the transparent display device according to Figure 13 , each of the plurality of upper organic layers 230 may include a main organic layer 231 provided corresponding to each of the plurality of sub-pixels SP (or a plurality of light-emitting regions EA), and a plurality of sub-organic layers 232, 233 arranged spaced apart from the main organic layer 231. Accordingly, the connection member RD can be provided between the main organic layer 231 and the plurality of sub-organic layers 232, 233. Further, as shown in Figure 13 , the connection member RD can also be provided between the sub-organic layers of each of two adjacent sub-pixels. Accordingly, since compared with the transparent display device according to Figure 1 , in the case of the transparent display device according toFigure 13 The transparent display device 100 may be provided with more grooves (or trenches) formed between the main organic layer 231 and the plurality of sub-organic layers 232, 233. Thus, when the first substrate 110 is joined to the second substrate 200, flow in the direction D1 from the connection member RD toward the filling member RF and / or in the opposite direction D2 (or in the direction D2 toward the region where neither the filling member RF nor the connection member RD exists) can be further reduced or prevented.

[0186] On the other hand, according to Figure 13 the transparent display device 100 may have a plurality of sub-organic layers 232, 233 that overlap with the transmissive portion TA in the third direction (Z-axis direction). For example, each of the plurality of sub-organic layers 232, 233 may be arranged to correspond to each of the plurality of planarization layers 113' (or the first planarization layer 113') provided in the transmissive portion TA. Thus, since the transparent display device according to Figure 1 has a smaller cell gap (or the gap between the plurality of sub-organic layers 232, 233 and the plurality of first planarization layers 113') in the transmissive portion TA compared to the transparent display device according to Figure 13 when the first substrate 110 is joined to the second substrate 200, overflow of the connection member RD to the filling member RF (or overflow to the void space where there is no filling member RF and connection member RD) can be maximally prevented.

[0187] Figure 14 is a schematic cross-sectional view of a transparent display device according to a fourth embodiment of the present invention, Figure 15 is Figure 14 a schematic cross-sectional view of

[0188] Referring to Figure 14 and Figure 15 except for changing the shape of each of the plurality of upper organic layers 230 provided on the second substrate 200 (or the opposing substrate), the transparent display device 100 according to the fourth embodiment of the present invention is the same as the above-described transparent display device according to Figure 1 Therefore, the same reference numerals are assigned to the same configurations, and only the different configurations will be described below.

[0189] In the case of the transparent display device according to Figure 1 a plurality of upper organic layers 230 are provided on the second substrate 200 at intervals from each other, and each of the plurality of upper organic layers 230 is provided in a square shape. Thus, in the case of the transparent display device according to Figure 1In the transparent display device, since the plurality of upper organic layers 230 have a square shape, when the first substrate 110 is joined to the second substrate 200, overflow in the direction D1 from the connection member RD toward the filling member RF and / or in the opposite direction D2 (or in the direction D2 toward the region where neither the filling member RF nor the connection member RD exists) can be reduced or prevented.

[0190] In contrast, in the case of the transparent display device according to Figure 14 the width of each of the plurality of upper organic layers 230 can be formed to become narrower from the second substrate 200 toward the first substrate 110. For example, each of the plurality of upper organic layers 230 can be configured to have a convex lens shape (or a parabolic shape) or a rounded shape in the direction from the second substrate 200 toward the first substrate 110. Therefore, in the transparent display device 100 according to Figure 14 since the plurality of upper organic layers 230 have a lens shape, when the first substrate 110 is joined to the second substrate 200, overflow in the direction D1 from the connection member RD toward the filling member RF and / or in the opposite direction D2 (or in the direction D2 toward the region where neither the filling member RF nor the connection member RD exists) can be reduced or prevented.

[0191] On the other hand, in the transparent display device 100 according to the fourth embodiment of the present invention, since the width of each of the plurality of upper organic layers 230 is formed to become narrower from the second substrate 200 toward the first substrate 110, when the first substrate 110 is joined to the second substrate 200, the spacer SPC disposed between the second substrate 200 and the first substrate 110 can be arranged not to overlap with the light emitting region EA and can be disposed between the plurality of upper organic layers 230. For example, when the first substrate 110 is joined to the second substrate 200, due to the rounded shape of the upper organic layer 230, the spacer SPC can be pushed between the upper organic layers 230. Therefore, in the transparent display device 100 according to the fourth embodiment of the present invention, since the spacer SPC is disposed between the plurality of upper organic layers 230 (or in the transmissive region TA), the cell gap can become smaller than the case where the spacer is arranged to overlap with the light emitting region EA, and thus the light viewing angle characteristics can be improved.

[0192] In addition, in the transparent display device 100 according to the fourth embodiment of the present invention, since the spacer SPC is disposed between the plurality of upper organic layers 230, the cell gap becomes smaller than the case where the spacer is arranged to overlap with the light emitting region EA, and thus color mixing between the plurality of sub-pixels SP can be prevented.

[0193] Figure 16is a schematic cross-sectional view showing a part of a transparent display device according to a fifth embodiment of the present invention, Figure 17 is a schematic cross-sectional view taken along line V-V' shown in Figure 16 FIG. V-V'.

[0194] Except for changing the layout structure of a plurality of sub-pixels SP included in a pixel P, the transparent display device 100 according to the fifth embodiment of the present specification is the same as the above-mentioned transparent display device according to Figure 1 Therefore, the same reference numerals are assigned to the same configurations, and only the different configurations will be described below.

[0195] In the above-mentioned transparent display device according to Figure 1 a plurality of sub-pixels SP included in each of a plurality of pixels P are arranged in a long stripe shape in a first direction (Y-axis direction). For example, a first sub-pixel SP1 that emits red light, a second sub-pixel SP2 that emits white light, a third sub-pixel SP3 that emits green light, and a fourth sub-pixel SP4 that emits blue light are arranged to extend in the first direction (Y-axis direction), and each of the first to fourth sub-pixels SP1, SP2, SP3, SP4 is arranged adjacent to a transmissive region TA in a second direction (X-axis direction).

[0196] In contrast, in the case of the transparent display device according to Figure 16 the first sub-pixel SP1 that emits red light, the second sub-pixel SP2 that emits white light, the third sub-pixel SP3 that emits green light, and the fourth sub-pixel SP4 that emits blue light may be arranged in a 2×2 structure. For example, the fourth sub-pixel SP4 that emits blue light and the first sub-pixel SP1 that emits red light may be arranged adjacent to each other in the second direction (X-axis direction), and the third sub-pixel SP3 that emits green light and the second sub-pixel SP2 that emits white light may be arranged adjacent to each other in the second direction (X-axis direction). Here, the third sub-pixel SP3 and the second sub-pixel SP2 may be arranged adjacent to the fourth sub-pixel SP4 and the first sub-pixel SP1 in the first direction (Y-axis direction). In addition, the transmissive region TA may be arranged adjacent to the right sides of the first sub-pixel SP1 and the second sub-pixel SP2. However, the layout structure of the first to fourth sub-pixels SP1, SP2, SP3, SP4 may be changed according to the design of the first substrate 110 (or the second substrate 200).

[0197] Therefore, as Figure 17 shown, the transparent display device 100 according to the fifth embodiment of the present invention may be provided with a structure in which color filters 210, 211 of each of two different sub-pixels SP are covered by an upper organic layer 230.

[0198] Embodiments of the present invention have been described in more detail with reference to the accompanying drawings. However, the present invention is not necessarily limited to these embodiments and can be implemented with various modifications without departing from the technical concept of the present invention. Therefore, the embodiments disclosed herein are intended to illustrate rather than limit the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by these embodiments. Therefore, the above 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.

[0199] The present invention includes a plurality of weir regions to allow the display panel to be cut into various sizes so that it can be manufactured in various types (or different sizes).

[0200] In addition, the present invention can be manufactured in various types (or different sizes) without an additional mask process. Compared with transparent display devices produced in various types by different production processes, the present invention can achieve reduced production energy.

[0201] In addition, the present invention is configured such that the moisture penetration path of the cutting portion is discontinuous. Therefore, even when the product is manufactured in various types (or various sizes), moisture penetration can be reduced or prevented.

[0202] The effects that can be obtained from the present invention are not limited to the above. According to the above description, other effects not mentioned will be obvious to those of ordinary skill in the art.

Claims

1. A transparent display device, comprising: a substrate including a display area in which a plurality of pixels are disposed and a non-display area around the display area, the plurality of pixels having a transmission portion and a plurality of sub-pixels; as well as A plurality of dam regions extend from the non-display region to the display region on the substrate and are arranged in a closed loop.

2. The transparent display device according to claim 1, wherein: Each of the plurality of dam areas is provided in N number on the substrate, where N is an integer greater than 1.

3. The transparent display device according to claim 2, further comprising: A cutting portion is provided between the N weir areas.

4. The transparent display device according to claim 3, in, The substrate further includes a plurality of gate drivers arranged along a first direction in the non-display area, and Wherein, the cutting portion is arranged parallel to the plurality of gate drivers.

5. The transparent display device according to claim 1, further comprising: a planarization layer, the planarization layer being disposed on the substrate; as well as a plurality of inorganic layers, the plurality of inorganic layers being disposed between the substrate and the planarization layer, The transmission portion includes an undercut portion, and the planarization layer and the plurality of inorganic layers are partially removed at the undercut portion.

6. The transparent display device according to claim 5, in, The number of the undercut portions is M, where M is an integer greater than 0.

7. The transparent display device according to claim 6, further comprising: a cutting portion, the cutting portion being provided between the plurality of weir areas, Wherein, the cutting portion is any one of the M undercut portions.

8. The transparent display device according to claim 5, in, The plurality of inorganic layers include a first passivation layer disposed between the substrate and the planarization layer and a second passivation layer disposed between the first passivation layer and the planarization layer, and The undercut portion includes a blocking portion, and the blocking portion partially overlaps the planarization layer between the first passivation layer and the second passivation layer.

9. The transparent display device according to claim 8, in, The substrate further includes a gate line extending along a second direction in the display area, and Wherein, the blocking part is arranged on the gate line.

10. The transparent display device according to claim 8, in, The substrate further includes a pixel power supply shorting bar arranged along a second direction in the non-display area, and Wherein, the blocking portion is arranged on the pixel power short-circuit bar.

11. The transparent display device according to claim 1, further comprising: an opposing substrate disposed to face the substrate; as well as a plurality of upper organic layers, the plurality of upper organic layers covering the color filters on the opposite substrate, the color filters being arranged corresponding to each of the plurality of sub-pixels, The plurality of upper organic layers are disposed to be spaced apart from each other, and the transmission part is interposed between the plurality of upper organic layers.

12. The transparent display device according to claim 11, in, Each of the plurality of weir areas includes a connection member disposed between the substrate and the opposing substrate, and Wherein, the connection member is partially disposed between the plurality of upper organic layers.

13. The transparent display device according to claim 11, in, The opposite substrate includes an upper inorganic layer disposed to cover the plurality of upper organic layers, and Wherein, the upper inorganic layer contacts the opposite substrate between the plurality of upper organic layers.

14. The transparent display device according to claim 12, in, Each of the plurality of upper organic layers comprises: a main organic layer, the main organic layer being disposed corresponding to each sub-pixel of the plurality of sub-pixels; and a plurality of sub-organic layers, the plurality of sub-organic layers being arranged to be spaced apart from the main organic layer, Wherein, the connecting member is disposed between the main organic layer and the plurality of sub-organic layers.

15. The transparent display device according to claim 14, wherein: The plurality of sub-organic layers are disposed to overlap the transmission portion.

16. The transparent display device according to claim 11, wherein: A width of each of the plurality of upper organic layers narrows from the opposing substrate to the substrate.

17. The transparent display device according to claim 16, further comprising a spacer disposed between the opposite substrate and the substrate, in, The spacer is disposed between the plurality of upper organic layers.

18. The transparent display device according to claim 5, in, Each pixel of the plurality of pixels comprises: an anode electrode, the anode electrode being disposed on the planarization layer; An organic light-emitting layer, wherein the organic light-emitting layer is disposed on the anode electrode; a cathode electrode, the cathode electrode being disposed on the organic light-emitting layer; and an encapsulation layer, the encapsulation layer being disposed on the cathode electrode, Wherein, the organic light-emitting layer is discontinuous at the undercut portion.

19. The transparent display device according to claim 18, wherein: Each of the cathode electrode and the encapsulation layer is continuous at the undercut portion.

20. The transparent display device according to claim 18, in, The cathode electrode is discontinuous at the undercut portion, and Wherein, the encapsulation layer is continuous at the undercut portion.

21. The transparent display device according to claim 12, further comprising a filling member disposed adjacent to the connecting member, The filling member is configured to fill a gap between the substrate and the opposite substrate to support the substrate and the opposite substrate. 22 . The transparent display apparatus according to claim 21 , wherein the filling member joins the substrate and the opposite substrate together with the connecting member, and the filling member is disposed to be surrounded by the connecting member.

23. The transparent display device according to claim 21, further comprising a cutting portion disposed between the plurality of weir regions, The cut portion is provided in at least one of an undercut portion in a region where the filling member is not provided, a region where the pixel emits light in a region where the filling member is not provided, and a transmissive portion in a region where the filling member is not provided. 24 . The transparent display apparatus according to claim 8 , wherein the blocking portion is configured to have a width wider than that of the undercut portion in the second direction.

25. The transparent display device according to claim 18, further comprising: a barrier disposed on the plurality of inorganic layers; as well as A filling member is disposed on an upper side of the encapsulation layer and an upper side of the barrier portion. 26 . The transparent display apparatus of claim 12 , further comprising a filling member partially disposed between the plurality of upper organic layers in a display region where the dam region is not disposed. 27 . The transparent display device according to claim 14 , wherein the connection member is further disposed between the sub-organic layers of each of two adjacent sub-pixels.

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