Transparent display device

Abstract

There is provided a transparent display device including: a substrate including a non-transmissive area and a transmissive area, the non-transmissive area including a light emitting area in which a light emitting element is disposed; a plurality of first signal lines disposed in the non-transmissive region on the substrate and extending in a first direction; at least one second signal line disposed in the non-transmissive region on the substrate and extending in a second direction crossing the first direction; a touch sensor disposed on the substrate in the transmissive region, and a plurality of touch sensors disposed on the substrate in the transmissive region; and at least one undertangent line disposed adjacent to the touch sensor to each other.

Description

[0001] Cross - reference to related applications

[0002] This application claims priority to Korean Patent Application No. 10 - 2023 - 0197908, filed on December 29, 2023, the entire contents of which are hereby incorporated by reference into this application. 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. Therefore, recently, various display devices such as liquid crystal display (LCD) devices, organic light - emitting display (OLED) devices, micro - light - emitting diode (LED) display devices, and quantum dot display (QD) devices have been used.

[0005] Recently, research on transparent display devices has been actively carried out. A transparent display device displays an image for a user and allows the user to view an object or an image located on the opposite side through transmitted light. The transparent display device includes a display area where an image is displayed and a non - display area. The display area may include a transmissive area that can transmit external light and a non - transmissive area. The transparent display device can have a high light transmittance in the display area through the transmissive area. The transparent display device may include a plurality of touch sensors and a plurality of touch sensor lines to implement a touch function.

[0006] Such transparent display devices are likely to be used in various fields where users can view an image and a background together. However, since transparent display devices can be applied to various fields and are adopted for various purposes of use, they need to be manufactured in various types (or various sizes). However, when transparent display devices are manufactured in various types (or various sizes), due to an increase in the number of processes, problems such as an increase in manufacturing cost and production energy occur. Summary of the Invention

[0007] One aspect of the present invention aims to provide a transparent display device capable of implementing a touch sensor function.

[0008] Another aspect of the present invention aims to provide a transparent display device capable of implementing a touch sensor function and being manufactured in various types (or various sizes).

[0009] The object of the present invention is not limited to the above - mentioned object. Rather, other objects not described herein will be clearly understood by those of ordinary skill in the art from the following description.

[0010] A transparent display device according to an embodiment of the present invention may include: a substrate including a non-transmissive region and a transmissive region, the non-transmissive region including a light-emitting region in which a light-emitting element is disposed; a plurality of first signal lines disposed in the non-transmissive region on the substrate and extending in a first direction; at least one second signal line disposed in the non-transmissive region on the substrate and extending in a second direction intersecting the first direction; a touch sensor disposed in the transmissive region on the substrate; and at least one bottom tangent line disposed adjacent to the touch sensor.

[0011] According to one or more embodiments of the present invention, a transparent display device capable of implementing a touch sensor function may be provided.

[0012] According to one or more embodiments of the present invention, a transparent display device capable of implementing a touch sensor function and manufacturable in various types (or various sizes) may be provided.

[0013] The effects of the present invention are not limited to the above effects. Rather, other effects not described herein will be clearly understood by those of ordinary skill in the art from the following description.

[0014] The details of the present invention described in terms of technical problems, technical solutions, and beneficial effects do not specify the essential features of the claims. Therefore, the scope of the claims is not limited by the details described in the detailed description of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings that provide a further understanding of the present invention and are incorporated into this application to form a part of this application illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention.

[0016] Figure 1 is a view illustrating a transparent display device according to an embodiment of the present invention.

[0017] Figure 2 is a circuit diagram of a sub-pixel of a transparent display device according to an embodiment of the present invention.

[0018] Figure 3 is a view illustrating, according to an embodiment of the present invention, Figure 1 the region A shown.

[0019] Figure 4 is a view illustrating, according to an embodiment of the present invention, Figure 3 the region B shown.

[0020] Figure 5 is a view illustrating the connection relationship between a plurality of touch blocks and a plurality of touch lines according to an embodiment of the present invention.

[0021] Figure 6 It is a view illustrating the connection relationship between multiple touch sensors of a single touch block according to an embodiment of the present invention.

[0022] Figure 7 It is a cross-sectional view taken along line I-I' shown according to an embodiment of the present invention. Figure 4 as shown.

[0023] Figure 8 It is a cross-sectional view taken along line II-II' shown according to an embodiment of the present invention. Figure 4 as shown.

[0024] Figure 9 It is a view illustrating area B shown according to another embodiment of the present invention. Figure 3 as shown.

[0025] Figure 10 It is a cross-sectional view taken along line III-III' shown according to another embodiment of the present invention. Figure 9 as shown.

[0026] Figure 11 It is a cross-sectional view taken along line IV-IV' shown according to another embodiment of the present invention. Figure 9 as shown.

[0027] Figure 12 It is a view illustrating area B shown according to another embodiment of the present invention. Figure 3 as shown.

[0028] Figure 13 It is a cross-sectional view taken along line V-V' shown according to another embodiment of the present invention. Figure 12 as shown.

[0029] Figure 14 It is a cross-sectional view taken along line VI-VI' shown according to another embodiment of the present invention. Figure 12 as shown.

[0030] Figure 15 It is a view illustrating area B shown according to another embodiment of the present invention. Figure 3 as shown.

[0031] Figure 16 It is a cross-sectional view taken along line VII-VII' shown according to another embodiment of the present invention. Figure 15 as shown.

[0032] Figure 17 It is a cross-sectional view taken along line VIII-VIII' shown according to another embodiment of the present invention. Figure 15 as shown.

[0033] Figure 18 FIG. is a view of region B according to another embodiment of the present invention. Figure 3 as shown.

[0034] Figure 19 is a cross-sectional view taken along line IX-IX' according to another embodiment of the present invention. Figure 18 as shown.

[0035] Figure 20 is a cross-sectional view taken along line X-X' according to another embodiment of the present invention. Figure 18 as shown.

[0036] Figure 21 is a cross-sectional view of a transparent display device according to another embodiment of the present invention.

[0037] Figure 22 FIG. is a view of region C according to another embodiment of the present invention. Figure 21 as shown.

[0038] Figure 23 is a cross-sectional view taken along line XI-XI' according to another embodiment of the present invention. Figure 22 as shown.

[0039] Figure 24 is a cross-sectional view taken along line XI-XI' according to another embodiment of the present invention. Figure 22 as shown.

[0040] Throughout the drawings and the detailed description, unless otherwise described, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustration, and / or convenience purposes, the dimensions, lengths, and thicknesses of layers, regions, and elements, and their illustrations may be exaggerated. DETAILED DESCRIPTION

[0041] The advantages, features, and methods of implementing the present invention are clarified by the 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 set forth herein. Rather, these embodiments are examples provided to make the present disclosure thorough and complete, to assist those of ordinary skill in the art in understanding the inventive concept, and not to limit the scope of the present invention.

[0042] The shapes (such as dimensions, length, width, height, thickness, position, radius, diameter, and area), sizes, ratios, angles, quantities, etc. (including those illustrated in the accompanying drawings) disclosed herein are merely examples, and thus, the present invention is not limited to the illustrated details. Any embodiment described herein as an "example" is not necessarily to be construed as more preferred or advantageous than other embodiments. However, note that the relative sizes of the components shown in the figures are part of the present invention.

[0043] When terms such as "comprising", "having", "including", "containing", "constituting", etc. are used with respect to one or more elements, one or more other elements may be added, unless terms such as "only" are used. The terms used in the present invention are adopted only for describing exemplary embodiments and are not intended to limit the scope of the present invention. Singular forms of terms may include plural forms unless the context clearly indicates otherwise.

[0044] When interpreting an element, the element is interpreted as including an error region even though there is no detailed description of such error region.

[0045] When describing positional relationships, for example, when the positional order is described as "on", "above", "below", "lower part", "after", etc., cases where there is no contact therebetween may be included, unless terms such as "exactly" or "directly" are used.

[0046] If it is mentioned that a first element is located on a second element, it does not mean that the first element must be above the second element in the figure. The upper and lower parts of the object involved may change according to the orientation of the object. Thus, the case where the first element is located on the second element includes, in the figure or in the actual structure, the case where the first element is above the second element and the case where the first element is below the second element.

[0047] When describing temporal relationships, for example, when the temporal order is described as, for example, "after", "subsequently", "next", "before", etc., discontinuous cases may be included, unless terms such as "exactly" or "directly" are used.

[0048] 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 other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0049] When describing the elements of the present invention, terms such as "first", "second", "A", "B", "(a)", "(b)", etc. may be used. These terms are intended to identify the corresponding elements from other elements and are not used to define the essence, basis, order, or quantity of the elements.

[0050] Expressions such as an element being "connected", "joined", "attached", or "adhered" to another element mean that the element can not only be directly connected, joined, attached, or adhered to the other element, but also be indirectly connected, joined, attached, or adhered to the other element with one or more intermediate elements provided or interposed between the elements, unless otherwise specified.

[0051] Expressions such as an element being "overlapped" with another element mean that the element can not only be in direct contact or overlap with the other element, but also be indirectly overlapped with the other element with one or more intermediate elements provided or interposed between the elements, unless otherwise specified.

[0052] The term "at least one of" should be understood to include any and all combinations of one or more of the items listed. For example, "at least one of the first element, the second element, and the third element" can include: all combinations of two or more elements selected from the first element, the second element, and the third element; and each of the first element, the second element, and the third element.

[0053] The features of the embodiments of the present invention can be partially or wholly combined or combined with each other, can be technically related to each other, and can be interoperated, connected, or driven together. The embodiments of the present invention can be implemented or realized independently of each other, or can be implemented or realized together in a mutually dependent or related relationship. In one or more aspects, the components of each device according to the embodiments of the present invention can be operatively joined and configured.

[0054] In the following description, various exemplary embodiments of the present invention are described in detail with reference to the accompanying drawings. Regarding the reference numerals of the elements in each figure, the same elements may be shown in other figures, and similar reference numerals may refer to similar elements, unless otherwise specified. The same or similar elements may be referred to by the same reference numeral even if they are illustrated in different figures. In addition, for ease of description, the proportions, sizes, dimensions, and thicknesses of each element illustrated in the drawings may be different from the actual proportions, sizes, dimensions, and thicknesses. Therefore, the embodiments of the present invention are not limited to the proportions, sizes, dimensions, and thicknesses shown in the figures.

[0055] Figure 1 is a view illustrating a transparent display device according to an embodiment of the present invention. Figure 2 is a circuit diagram of sub-pixels of a transparent display device according to an embodiment of the present invention.

[0056] Hereinafter, the X-axis represents the direction parallel to the scanning line, the Y-axis represents the direction parallel to the data line, and the Z-axis represents the height direction of the transparent display device.

[0057] Although a transparent display device according to an embodiment of the present invention is implemented as an organic light emitting display (OLED) device, it may also be implemented as a liquid crystal display (LCD) device, a micro LED display device, a quantum dot display (QD) device, and the like.

[0058] Referring Figure 1 and Figure 2 , a transparent display device according to an embodiment of the present invention may include a transparent display panel 110, which includes: a display area DA, in which a plurality of pixels are provided to display an image; and a non-display area NDA located near the display area DA, in which no image is displayed.

[0059] The display area DA of the transparent display panel 110 may include a first signal line SL1, a second signal line SL2, and a plurality of pixels, and its non-display area NDA may include a pad area PA in which a plurality of pads are provided and at least one gate driver 205.

[0060] The first signal line SL1 may extend in a first direction (or Y-axis direction) and may cross the second signal line SL2 in the display area DA. The second signal line SL2 may extend in a second direction (or X-axis direction). A plurality of pixels may be provided in an area where the first signal line SL1 and the second signal line SL2 cross each other, and may emit predetermined light to display an image.

[0061] The gate driver 205 may be connected to a scan line to provide a scan signal. The gate driver 205 may be implemented in a gate-in-panel (GIP) method or a tape automated bonding (TAB) method in a non-display area NDA located outside one or both sides of the display area DA of the transparent display panel 110.

[0062] A source driver integrated circuit, a circuit board, or a timing controller connected via a flexible circuit film may be electrically connected to the pad area PA of the transparent display panel 110.

[0063] Referring Figure 2 , each pixel includes a plurality of sub-pixels constituting one unit pixel, and each sub-pixel includes: a circuit element having a 3T1C structure (three transistors and one capacitor) including a first switching transistor TR1, a second switching transistor TR2, a driving transistor DTR, and a capacitor Cst; and a light emitting element ED, but is not limited thereto. Each sub-pixel may further include a compensation circuit, and in this case, may have various structures such as 4T2C, 5T2C, 6T1C, 6T2C, 7T1C, and 7T2C.

[0064] Each of the transistors DTR, TR1, and TR2 of each sub-pixel may include a gate, a source, and a drain. Since the source and the drain are not fixed and can change according to the voltage applied to the gate and the direction of the current, one of the source and the drain can be expressed as the first electrode, and the other can be expressed as the second electrode. The transistors DTR, TR1, and TR2 of each sub-pixel may use at least one of polysilicon semiconductors, amorphous silicon semiconductors, and oxide semiconductors. The transistors DTR, TR1, and TR2 may be P-type or N-type transistors, or may alternatively employ P-type and N-type transistors interchangeably.

[0065] The first switching transistor TR1 may be used to supply the data voltage Vdata from the data line DL to the driving transistor DTR. For example, the first switching transistor TR1 may charge the capacitor Cst with the data voltage Vdata supplied from the data line DL. To this end, the gate of the first switching transistor TR1 may be connected to the scan line SCANL (or gate line), and its first electrode may be connected to the data line DL. In addition, the second electrode of the first switching transistor TR1 may be connected to one end of the capacitor Cst and the gate of the driving transistor DTR.

[0066] The first switching transistor TR1 may turn on in response to the scan signal Scan applied via the scan line SCANL (or gate line). When the first switching transistor TR1 turns on, the data voltage Vdata applied via the data line DL may be transmitted to one end of the capacitor Cst.

[0067] The second switching transistor TR2 may be used to supply the reference voltage Vref from the reference line REFL to the driving transistor DTR. For example, the gate of the second switching transistor TR2 may be connected to the scan line SCANL (or gate line), and its first electrode may be connected to the reference line REFL. In addition, the second electrode of the second switching transistor TR2 may be connected to the first electrode of the driving transistor DTR and the other end of the capacitor Cst.

[0068] The second switching transistor TR2 may turn on in response to the scan signal Scan applied via the scan line SCANL (or gate line). When the second switching transistor TR2 turns on, the reference voltage Vref applied via the reference line REFL may be transmitted to the other end of the capacitor Cst. In addition, the reference voltage Vref may be applied to the source of the driving transistor DTR.

[0069] The capacitor Cst can be used to hold the data voltage Vdata supplied to the driving transistor DTR for one frame. For example, the first electrode of the capacitor Cst can be connected to the gate of the driving transistor DTR, and its second electrode can be connected to the source of the driving transistor DTR. The capacitor Cst can store a voltage corresponding to the data voltage Vdata transmitted via the first switching transistor TR1, and can use the stored voltage to turn on the driving transistor DTR.

[0070] The driving transistor DTR can generate a data current from the first power supply EVDD supplied from the pixel power supply line (or the first power supply line) VDDL, and supply the generated data current to the anode of the light-emitting element ED. For example, the gate of the driving transistor DTR can be connected to one end of the capacitor Cst, and its first electrode can be connected to the pixel power supply line VDDL. In addition, the second electrode of the driving transistor DTR can be connected to the anode of the light-emitting element ED.

[0071] The light-emitting element ED can include: an anode connected to the driving transistor DTR; a cathode receiving the second power supply EVSS from the common power supply line (or the second power supply line) VSSL; and a light-emitting layer located between the anode and the cathode. The anode is an independent electrode of each light-emitting element, but the cathode can be a common electrode shared by all the light-emitting elements. When a driving current is supplied from the driving transistor DTR, electrons from the cathode can be injected into the light-emitting layer, and holes from the anode can be injected into the light-emitting layer, so that the light-emitting element ED can allow fluorescence or phosphorescent materials to emit light via the recombination of electrons and holes in the light-emitting layer, thereby generating light having a brightness proportional to the current value of the driving current.

[0072] The anode of the light-emitting element ED can be connected to the second electrode of the driving transistor DTR, and its cathode can be connected to the common power supply line VSSL. The light-emitting element ED can emit light in response to the driving current generated by the driving transistor DTR.

[0073] Figure 3 is a view illustrating an embodiment according to the present invention, Figure 1 of the area A shown. Figure 4 is a view illustrating an embodiment according to the present invention, Figure 3 of the area B shown. Figure 5 is a view illustrating the connection relationship between a plurality of touch blocks and a plurality of touch lines according to an embodiment of the present invention.

[0074] Figure 6 is a view illustrating the connection relationship between a plurality of touch sensors of a single touch block according to an embodiment of the present invention.

[0075] Combined Figure 1 and 2 for reference Figures 3 to 6, the transparent display panel 110 according to an embodiment of the present invention may include a display area DA and a non-display area NDA. The display area DA may include a transmissive area TA and a non-transmissive area NTA. The transmissive area TA may be an area that transmits most of the light incident from the outside, and the non-transmissive area NTA may be an area that does not transmit most of the light incident from the outside. For example, the transmissive area TA may be an area having a light transmittance greater than α%, and the non-transmissive area NTA may be an area having a light transmittance less than β%. In this case, α may be a value greater than β. Due to the transmissive area TA of the transparent display panel 110, a user may see an object or a background located on the back surface (or rear surface) of the transparent display panel 110.

[0076] The non-transmissive area NTA may include a first non-transmissive area NTA1, a second non-transmissive area NTA2, and a plurality of pixels P.

[0077] The first non-transmissive area NTA1 extends from the display area DA in a first direction (or Y-axis direction), and may be arranged to overlap at least a part of the light-emitting areas EA1, EA2, EA3, and EA4. A plurality of first non-transmissive areas NTA1 may be configured. The plurality of first non-transmissive areas NTA1 may extend in the first direction (or Y-axis direction), and may be arranged to be separated from each other in a second direction (or X-axis direction). Two adjacent first non-transmissive areas NTA1 may be arranged to be separated from each other on the condition that a transmissive area TA is interposed therebetween. For example, the transmissive area TA may be provided between two adjacent first non-transmissive areas NTA1. A first signal line SL1 extending in the first direction (or Y-axis direction) may be provided in the first non-transmissive area NTA1. For example, the first signal line SL1 may be arranged to overlap the first non-transmissive area NTA1.

[0078] The first signal line SL1 may extend from the display area DA in the first direction (or Y-axis direction), and may be arranged to at least partially overlap the light-emitting areas EA1, EA2, EA3, and EA4.

[0079] The first signal line SL1 may be provided on one side of the light-emitting areas EA1, EA2, EA3, and EA4. For example, the light-emitting areas EA1, EA2, EA3, and EA4 may be arranged in parallel along the first direction (or Y-axis direction), and the first signal line SL1 may be provided on the right or left side of the light-emitting areas EA1, EA2, EA3, and EA4. For example, the first signal line SL1 may be provided on the left side of the light-emitting areas EA1, EA2, EA3, and EA4.

[0080] A plurality of first signal lines SL1 can be set. For example, the first signal line SL1 may include at least one of a pixel power supply line VDDL, a common power supply line VSSL, a reference line REFL, and data lines DL1, DL2, DL3, and DL4. For example, the first signal line SL1 may further include a touch line TL, but the embodiments of the present invention are not limited thereto.

[0081] The pixel power supply line (or the first power supply line) VDDL can supply a first power supply EVDD to the driving transistor DTR of each of the sub-pixels SP1, SP2, SP3, and SP4 provided in the display area DA.

[0082] The common power supply line (or the second power supply line) VSSL can supply a second power supply EVSS to the cathodes of the sub-pixels SP1, SP2, SP3, and SP4 provided in the display area DA. In this case, the second power supply EVSS may be a common power supply commonly supplied to the sub-pixels SP1, SP2, SP3, and SP4.

[0083] The reference line REFL can supply an initialization voltage (or a reference voltage) to the driving transistor DTR of each of the sub-pixels SP1, SP2, SP3, and SP4 provided in the display area DA. For example, the reference line REFL may be set between the plurality of data lines DL1, DL2, DL3, and DL4. For example, the reference line REFL may be set in the middle of the plurality of data lines DL1, DL2, DL3, and DL4.

[0084] Each of the data lines DL1, DL2, DL3, and DL4 can supply a data voltage Vdata to the sub-pixels SP1, SP2, SP3, and SP4. For example, the first data line DL1 can supply a first data voltage to the first driving transistor of the first sub-pixel SP1, the second data line DL2 can supply a second data voltage to the second driving transistor of the second sub-pixel SP2, the third data line DL3 can supply a third data voltage to the third driving transistor of the third sub-pixel SP3, and the fourth data line DL4 can supply a fourth data voltage to the fourth driving transistor of the fourth sub-pixel SP4.

[0085] The pixel power supply line VDDL and the common power supply line VSSL can be set outside the plurality of data lines DL1, DL2, DL3, and DL4 and the reference line REFL. For example, the common power supply line VSSL can be set adjacent to the first data line DL1, and the pixel power supply line VDDL can be set adjacent to the fourth data line DL4, but the embodiments of the present invention are not limited thereto. The pixel power supply line VDDL can be set adjacent to the first data line DL1, and the common power supply line VSSL can be set adjacent to the fourth data line DL4.

[0086] At least two touch lines TL may be disposed in the first non-transmissive region NTA1. The touch lines TL may be electrically connected to the touch sensors to sense changes in the capacitance formed in each touch sensor. For example, the transparent display panel 110 according to an embodiment of the present invention may include a plurality of touch blocks TB as Figure 5 shown. Each of the plurality of touch blocks TB is a basic unit for determining a user touch position and may include a plurality of pixels P and a plurality of transmissive regions TA disposed in one-to-one correspondence with the plurality of pixels P.

[0087] In the transparent display panel 110, as Figure 6 shown, the touch sensors TS may be disposed in the transmissive regions TA. For example, each of the plurality of touch blocks TB may include 12×16 pixels P and 12×15 touch sensors TS. For example, when the pixel resolution is 1920×1080, the touch resolution may be 160×72.

[0088] The touch sensors TS may include touch sensor electrodes TSE. The touch sensor electrodes TSE may be formed of the same material as the cathodes CE of the pixels P in the same layer. For example, the touch sensor electrodes TSE and the cathodes CE may be separated from each other.

[0089] Each of the plurality of touch lines TL disposed on the transparent display panel 110 may be connected to Figure 5 only one of the plurality of touch blocks TB shown to sense capacitance changes of the touch sensors TS disposed in the connected touch block TB. For example, the plurality of touch lines TL disposed on the transparent display panel 110 may be in one-to-one correspondence with the plurality of touch blocks TB. For example, in the transparent display panel 110, the touch lines TL may be provided in the same number as the touch blocks TB. For example, in the case where the number of touch blocks TB is 160×72, the touch lines TL may also be provided in the number of 160×72, and thus may be connected to the touch driver TIC. For example, although the touch lines TL are Figures 4 to 6 shown as including four touch lines TL1, TL2, TL3, and TL4 in one first signal line SL1, embodiments of the present invention are not limited thereto, and six touch lines may be included in one first signal line SL1.

[0090] The plurality of touch sensors TS disposed in one touch block TB may be connected to one of the plurality of touch lines TL disposed in one touch block TB, as Figure 6As shown. For example, 18 first signal lines SL1 may be provided in one touch block TB, and four touch lines TL1, TL2, TL3, and TL4 may be provided in each of the 18 first signal lines SL1. However, the embodiments of the present invention are not limited thereto. 12 first signal lines SL1 may be provided in one touch block TB, and six touch lines may be provided in each of the 12 first signal lines SL1. For example, one touch block TB may include 72 touch lines TL1 to TL72. For example, a plurality of touch sensors TS provided in one touch block TB may be connected to a specific touch line TL1 among the 72 touch lines TL1 to TL72. For example, the specific touch line TL1 may be connected to a plurality of touch sensors TS arranged in the second direction (or X-axis direction) via a touch bridge line TBL extending in the second direction (or X-axis direction).

[0091] When a plurality of touch lines TL are provided in the transmissive area TA of the transparent display panel 110, the light transmittance may deteriorate due to the plurality of touch lines TL. For this reason, the touch line TL may be provided in the first non-transmissive area NTA1 instead of the transmissive area TA. The touch line TL may be alternately provided with data lines DL1, DL2, DL3, and DL4 and a reference line REFL, as Figure 4 shown. For example, the touch line TL may include four touch lines TL1, TL2, TL3, and TL4. The first touch line TL1 may be provided adjacent to the pixel power supply line VDDL or the common power supply line VSSL. The first touch line TL1 may be provided between the first data line DL1 and the second data line DL2. The second touch line TL2 may be provided between the second data line DL2 and the reference line REFL. The third touch line TL3 may be provided between the reference line REFL and the third data line DL3. The fourth touch line TL4 may be provided adjacent to the common power supply line VSSL or the pixel power supply line VDDL. The fourth touch line TL4 may be provided between the third data line DL3 and the fourth data line DL4. However, the embodiments of the present invention are not limited thereto.

[0092] The second non-transmissive region NTA2 may extend from the display region DA in a second direction (or the X-axis direction), and may be arranged to at least partially overlap with the light-emitting regions EA1, EA2, EA3, and EA4. For example, the second non-transmissive region NTA2 may extend in the second direction (or the X-axis direction) between two adjacent first non-transmissive regions NTA1. A plurality of second non-transmissive regions NTA2 may be configured. The plurality of second non-transmissive regions NTA2 may extend in the second direction (or the X-axis direction), and may be arranged to be separated from each other in a first direction (or the Y-axis direction). Two adjacent second non-transmissive regions NTA2 may be arranged to be separated from each other with a transmissive region TA interposed therebetween. For example, the transmissive region TA may be arranged between two adjacent second non-transmissive regions NTA2. A second signal line SL2 extending in the second direction (or the X-axis direction) may be arranged in the second non-transmissive region NTA2. For example, the second signal line SL2 may be arranged to overlap with the second non-transmissive region NTA2.

[0093] The second signal line SL2 may extend in the second direction (or the X-axis direction), and may include at least one of a scan line SCANL (or a gate line) and a touch bridge line TBL. The scan line SCANL and the touch bridge line TBL may be arranged to be separated from each other in the second non-transmissive region NTA2. For example, the scan line SCANL and the touch bridge line TBL may be arranged in parallel in the second direction (or the X-axis direction), and may be arranged to be separated from each other in the first direction (or the Y-axis direction).

[0094] The scan line SCANL may extend in the second direction (or the X-axis direction), and may provide a scan signal to the sub-pixels SP1, SP2, SP3, and SP4 of the pixel P.

[0095] The touch bridge line TBL may connect any one of a plurality of touch lines TL to the touch sensor TS. The touch bridge line TBL may extend from the second non-transmissive region NTA2 in the second direction (or the X-axis direction), and may be configured to connect the plurality of touch lines TL arranged in the first non-transmissive region NTA1 to the touch sensor TS arranged in the transmissive region TA. For example, a touch sensor contact portion TCT may be arranged in the touch sensor TS located in the transmissive region TA, and the touch sensor contact portion TCT may be connected to the touch bridge line TBL via a touch connection line TCL.

[0096] The pixel P can be disposed in each intersection region where the first non-transmissive region NTA1 and the second non-transmissive region NTA2 intersect each other, and can emit light to display an image. Each pixel P is disposed between adjacent transmissive regions TA, and the pixel P can include light-emitting regions EA1, EA2, EA3, and EA4 in which light-emitting elements are disposed to emit light. The light-emitting regions EA1, EA2, EA3, and EA4 can correspond to the regions that emit light in the pixel P. Since the size of the non-transmissive region NTA is small in the transparent display panel 110, circuit elements can be disposed to overlap with the light-emitting regions EA1, EA2, EA3, and EA4. For example, the light-emitting regions EA1, EA2, EA3, and EA4 can at least partially overlap with circuit regions CA1, CA2, CA3, and CA4 in which circuit elements are disposed. For example, the circuit regions CA1, CA2, CA3, and CA4 can include: a first circuit region CA1 in which circuit elements connected to the first sub-pixel SP1 are disposed; a second circuit region CA2 in which circuit elements connected to the second sub-pixel SP2 are disposed; a third circuit region CA3 in which circuit elements connected to the third sub-pixel SP3 are disposed; and a fourth circuit region CA4 in which circuit elements connected to the fourth sub-pixel SP4 are disposed.

[0097] The first to fourth light-emitting regions EA1, EA2, EA3, and EA4 can emit light of different colors. For example, the first light-emitting region EA1 can emit green light, the second light-emitting region EA2 can emit blue light, the third light-emitting region EA3 can emit white light, and the fourth light-emitting region EA4 can emit red light, but the embodiments of the present invention are not limited thereto. For example, various modifications can be made in the arrangement order or arrangement form of each of the sub-pixels SP1, SP2, SP3, and SP4.

[0098] The circuit regions CA1, CA2, CA3, and CA4 of the sub-pixels SP1, SP2, SP3, and SP4 can be disposed adjacent to the first signal line SL1. For example, the first signal line SL1 can be disposed on the left side in the second direction, and each of the circuit regions CA1, CA2, CA3, and CA4 can be disposed on the right side in the second direction.

[0099] In the transparent display panel 110 according to an embodiment of the present invention, a plurality of sub-pixels SP1, SP2, SP3, and SP4 can be disposed in parallel along the first direction (or Y-axis direction). For example, the plurality of sub-pixels SP1, SP2, SP3, and SP4 can have a stripe shape extending along the first direction (Y-axis direction).

[0100] The circuit regions CA1, CA2, CA3, and CA4 of the multiple sub-pixels SP1, SP2, SP3, and SP4 may be arranged in parallel with a first signal line SL1 extending along a first direction (or Y-axis direction). Each of the circuit regions CA1, CA2, CA3, and CA4 may include: a capacitor Cst; at least one of thin film transistors DRT, TR1, and TR2; and a light-emitting element ED, as Figure 2 shown. For example, at least one of the thin film transistors DRT, TR1, and TR2 may include a driving transistor DTR, a first switching transistor TR1, and a second switching transistor TR2. In addition, the light-emitting element ED may include: a first electrode (or anode or pixel electrode); a light-emitting layer (or organic light-emitting layer); and a second electrode (or cathode or common electrode).

[0101] In the transparent display panel 110 according to an embodiment of the present invention, a touch sensor TS may be disposed in the transmissive region TA. The touch sensor TS may be disposed in each of the multiple transmissive regions TA. When a user touches the touch sensor TS, a capacitance change of the touch sensor TS may occur. For example, a touch driver TIC may be connected to the multiple touch sensors TS via multiple touch lines TL to sense the capacitance changes of the multiple touch sensors TS.

[0102] The touch sensor TS may be defined by at least one bottom tangent UCL disposed in the transmissive region TA. For example, the touch sensor TS may be separated from the cathode of the pixel P by at least one bottom tangent UCL. At least one bottom tangent UCL may be arranged to be adjacent to the touch sensor TS in the transmissive region TA or the non-transmissive region NTA. At least one bottom tangent UCL may be configured in a closed-loop form surrounding the area of the touch sensor TS. For example, at least one bottom tangent UCL may include a portion extending along the first direction (or Y-axis direction) and a portion extending along the second direction (or X-axis direction). For example, at least one bottom tangent UCL may be configured in a closed-loop form, in which multiple portions extending parallel to each other along the first direction and separated from each other along the second direction and multiple portions extending parallel to each other along the second direction and separated from each other along the first direction are connected to each other. For example, the closed loop of at least one bottom tangent UCL may have a rectangular shape, but the embodiments of the present invention are not limited thereto.

[0103] A touch sensor contact portion TCT may be disposed inside at least one bottom tangent UCL, and the touch line TL and the touch sensor TS may be electrically connected to each other via the touch sensor contact portion TCT. For example, the touch sensor contact portion TCT may be connected to a touch bridge wiring TBL connected to the touch line TL. The touch sensor contact portion TCT may be connected to the touch line TL via the touch bridge wiring TBL, but the embodiments of the present invention are not limited thereto, and the touch sensor contact portion TCT may be directly connected to the touch line TL.

[0104] Figure 7 is a cross-sectional view taken along line I-I' shown Figure 4 in accordance with an embodiment of the present invention. Figure 8 is a cross-sectional view taken along line II-II' shown Figure 4 in accordance with an embodiment of the present invention.

[0105] Referring Figure 4 to Figure 7 and 8 , the substrate 111 of the transparent display panel 110 according to an embodiment of the present invention may include a non-transmissive region NTA having a light-emitting region EA and a transmissive region TA. The non-transmissive region NTA may include a first non-transmissive region NTA1 extending in a first direction and a second non-transmissive region NTA2 extending in a second direction.

[0106] Referring Figure 7 , at least one bottom tangent line UCL may be disposed in the transmissive region TA on the substrate 111. At least one bottom tangent line UCL may be disposed to have a closed-loop shape along the edge of the transmissive region TA. For example, a touch sensor TS may be disposed between at least one bottom tangent line UCL. The touch sensor TS may include a touch sensor electrode TSE. For example, at least one bottom tangent line UCL may separate or disconnect the second electrode 140 of the light-emitting element ED, so that the touch sensor electrode TSE having an island pattern may be disposed to be surrounded by at least one bottom tangent line UCL. The touch sensor TS may be disposed in the transmissive region TA and may not overlap with the non-transmissive region NTA. For example, the touch sensor TS may not overlap with at least one second signal line SL2 disposed in the second non-transmissive region NTA2. The second electrode 140 may include: a cathode for constituting the light-emitting element ED in the non-transmissive region NTA; and a touch sensor electrode TSE for constituting the touch sensor TS in the transmissive region TA.

[0107] The buffer layer BF may be disposed on the substrate 111, at least one insulating layer including an interlayer insulating layer ILD, a first passivation layer PAS1, and a second passivation layer PAS2 may be disposed on the buffer layer BF, and a planarization layer PLN may be disposed on the second passivation layer PAS2. At least one bottom cut line UCL may be formed by removing at least a portion of at least one insulating layer and at least a portion of the planarization layer PLN. For example, in at least one bottom cut line UCL, a first bottom cut pattern UCP1 may be formed by removing at least a portion of the interlayer insulating layer ILD, the first passivation layer PAS1, and the second passivation layer PAS2, and a second bottom cut pattern UCP2 may be formed by removing at least a portion of the planarization layer PLN on the first bottom cut pattern UCP1. The second bottom cut pattern UCP2 may be formed to protrude further than the first bottom cut pattern UCP1 to have an eave shape. A bottom cut region may be included below the edge of the second bottom cut pattern UCP2.

[0108] At least one bottom cut line UCL may separate or disconnect a second electrode 140 extending from the light-emitting element ED, and thus a touch sensor electrode TSE having an island pattern and separated from the second electrode 140 may be disposed inside the at least one bottom cut line UCL. For example, the touch sensor electrode TSE may be disposed on an organic light-emitting layer 130 separated or disconnected by the at least one bottom cut line UCL.

[0109] Referring to Figure 8 , at least one second signal line SL2 may be disposed in a second non-transmissive region NTA2 on the substrate 111. At least one signal line SL2 may extend in a second direction (or X-axis direction).

[0110] At least one second signal line SL2 may include a scan line SCANL and a touch bridge line TBL. The scan line SCANL and the touch bridge line TBL may include the same material on the buffer layer BF. For example, the scan line SCANL and the touch bridge line TBL may be disposed parallel to each other in the second direction (or X-axis direction) and spaced apart from each other in a first direction (or Y-axis direction). The second non-transmissive region NTA2 may be disposed between adjacent bottom cut lines UCL. At least one insulating layer including the buffer layer BF, the interlayer insulating layer ILD, the first passivation layer PAS1, and the second passivation layer PAS2, and the planarization layer PLN may be disposed in the second non-transmissive region on the substrate 111. For example, at least one signal line SL2 disposed in the second non-transmissive region NTA2 may be covered by at least one insulating layer and the planarization layer PLN.

[0111] At least one signal line SL2 can be protected by a line capping pattern LCP, where the line capping pattern LCP includes at least one insulating layer located in the second non-transmissive region NTA2 of the substrate 111 and at least a part of the planarization layer PLN. For example, the line capping pattern LCP can include a first line capping pattern LCP1 composed of at least one insulating layer and a second line capping pattern LCP2 composed of the planarization layer PLN on the first line capping pattern LCP1. For example, although Figure 8 shows that the scan line SCANL and the touch bridge line TBL are arranged together in the second non-transmissive region NTA2, the touch bridge line TBL can be omitted and only the scan line SCANL can be arranged. For example, the scan line SCANL can be protected by the line capping pattern LCP.

[0112] Figure 9 is a view illustrating another embodiment according to the present invention, Figure 3 the view of the area B shown. Figure 10 is another embodiment according to the present invention, along Figure 9 the cross-sectional view taken along the line III-III' shown. Figure 11 is another embodiment according to the present invention, along Figure 9 the cross-sectional view taken along the line IV-IV' shown. The elements inside the transmissive region TA in the transparent display panel 110 described with reference to Figures 1 to 8 are modified in Figures 9 to 11 . Therefore, in the following description, the same reference numerals will be given to other identical elements except the modified elements, and their repeated descriptions will be omitted or briefly provided.

[0113] Referring to Figures 9 to 11 , at least one bottom cut line UCL according to another embodiment of the present invention can include a first bottom cut line UCL1 and a second bottom cut line UCL2.

[0114] The first bottom cut line UCL1 can define a touch sensor TS in the transmissive region TA. The first bottom cut line UCL1 can be configured in a closed-loop form around the area of the touch sensor TS. For example, the first bottom cut line UCL1 can include a part extending along the first direction (or the Y-axis direction) and a part extending along the second direction (or the X-axis direction). For example, the first bottom cut line UCL1 can be configured in a closed-loop form, where a plurality of parts extending parallel to each other along the first direction and separated from each other along the second direction and a plurality of parts extending parallel to each other along the second direction and separated from each other along the first direction are connected to each other. For example, the closed loop of the first bottom cut line UCL1 can have a rectangular shape, but the embodiments of the present invention are not limited thereto.

[0115] The touch sensor TS may be disposed inside the first bottom tangent UCL1. The touch sensor TS may include a touch sensor electrode TSE. The first bottom tangent UCL1 may separate or disconnect the second electrode 140 of the light-emitting element ED, such that the touch sensor electrode TSE having an island pattern may be disposed to be surrounded by at least one bottom tangent UCL.

[0116] The second bottom tangent UCL2 may be disposed in the transmission area TA and may be disposed adjacent to the touch sensor TS configured by the first bottom tangent UCL1. For example, the second bottom tangent UCL2 may be disposed to extend in the first direction (or Y-axis direction) in the transmission area TA. The second bottom tangent UCL2 may be configured to intersect a plurality of transmission areas TA arranged in parallel in the first direction. When the second bottom tangent UCL2 extends in the first direction, it may intersect (cross) and overlap at least a portion of at least one second signal line SL2.

[0117] According to another embodiment of the present invention, the second bottom tangent UCL2 may be disposed to extend in the second direction (or X-axis direction). The second bottom tangent UCL2 may be disposed to overlap the second non-transmission area NTA2. For example, the second bottom tangent UCL2 may extend in the second direction to intersect the second non-transmission area NTA2. The second bottom tangent UCL2 may overlap parallel to at least one second signal line SL2 in the second non-transmission area NTA2, but the embodiments of the present invention are not limited thereto.

[0118] Referring to Figure 10 , the first bottom tangent UCL1 and the second bottom tangent UCL2 may be disposed in the transmission area TA on the substrate 111. The first bottom tangent UCL1 may be disposed to have a closed-loop shape in the transmission area TA. The second bottom tangent UCL2 may be disposed to continuously extend in the first direction (or Y-axis direction) in the transmission area TA. For example, the touch sensor TS may be disposed between the first bottom tangents UCL1. The touch sensor TS may include a touch sensor electrode TSE. For example, the first bottom tangent UCL1 may separate or disconnect the second electrode 140 of the light-emitting element ED, such that the touch sensor electrode TSE having an island pattern may be disposed to be surrounded by the first bottom tangent UCL1. The touch sensor TS may be disposed in the transmission area TA and may not overlap with the non-transmission area NTA. For example, the touch sensor TS may not overlap with at least one second signal line SL2 disposed in the second non-transmission area NTA2.

[0119] The second bottom tangent UCL2 disposed adjacent to the touch sensor TS surrounded by the first bottom tangent UCL1 may be disposed in the transmission area TA on the substrate 111. The second bottom tangent UCL2 may be disposed to extend in the first direction (or Y-axis direction) in the transmission area TA.

[0120] The buffer layer BF may be disposed on the substrate 111, and at least one insulating layer including an interlayer insulating layer ILD, a first passivation layer PAS1, and a second passivation layer PAS2 may be disposed on the buffer layer BF. A planarization layer PLN may be disposed on the second passivation layer PAS2.

[0121] In the first bottom tangent UCL1, a first bottom cut pattern UCP11 may be formed by removing at least a portion of the first passivation layer PAS1 and the second passivation layer PAS2, and a second bottom cut pattern UCP12 may be formed on the first bottom cut pattern UCP11 by removing at least a portion of the planarization layer PLN. The first bottom tangent UCL1 may separate or disconnect the second electrode 140 extending from the light-emitting element ED, so that a touch sensor electrode TSE having an island pattern and separated from the second electrode 140 may be disposed inside the first bottom tangent UCL1. For example, the touch sensor electrode TSE may be disposed on the organic light-emitting layer 130 separated or disconnected by the first bottom tangent UCL1.

[0122] In the second bottom tangent UCL2, a first bottom cut pattern UCP21 may be formed by removing at least a portion of the interlayer insulating layer ILD, the first passivation layer PAS1, and the second passivation layer PAS2, and a second bottom cut pattern UCP22 may be formed on the first bottom cut pattern UCP21 by removing at least a portion of the planarization layer PLN.

[0123] The second bottom tangent UCL2 may be configured to extend in a first direction (or Y-axis direction) in the transmissive region TA. The second bottom tangent UCL2 may be configured to intersect a plurality of transmissive regions TA arranged in parallel in the first direction. The second bottom tangent UCL2 may separate or disconnect the organic light-emitting layer 130 extending from an adjacent light-emitting element ED. In addition, as the second bottom tangent UCL2 is formed by removing at least a portion of the planarization layer PLN, the planarization layer PLN as an organic insulating layer may be separated or disconnected. Therefore, the second bottom tangent UCL2 may form a boundary line (where the organic light-emitting layer 130 and the planarization layer PLN that can be used as a moisture penetration path are continuously removed in the first direction (or Y-axis direction)), and moisture penetration toward one side or the other side may be avoided based on the boundary line formed by the second bottom tangent UCL2.

[0124] Referring to Figure 11 , at least a portion of the second bottom tangent UCL2 may be disposed in the non-transmissive region NTA on the substrate 111. For example, when the second bottom tangent UCL2 continuously extends in the first direction, at least a portion of the second bottom tangent UCL2 may be configured to intersect the second non-transmissive region NTA2. The second bottom tangent UCL2 may intersect and overlap at least one second signal line SL2 disposed in the second non-transmissive region NTA2.

[0125] The blocking pattern BP can be disposed at a portion where the second bottom tangent UCL2 and at least one second signal line SL2 cross each other. For example, the blocking pattern BP can be formed at a portion where the second bottom tangent UCL2 and at least one second signal line SL2 cross each other.

[0126] The blocking pattern BP is used to prevent the second signal line SL2 from being damaged by an etchant used when forming the second bottom tangent UCL2. For example, the blocking pattern BP can be formed between the second bottom tangent UCL2 and at least one second signal line SL2. The blocking pattern BP can be formed on the first passivation layer PAS1. For example, the blocking pattern BP can be formed of the same material as other signal lines formed on the first passivation layer PAS1.

[0127] In the transparent display panel 110 according to another embodiment of the present invention, at least one bottom tangent UCL1 or UCL2 is disposed in the transmission region TA, so that the touch sensor TS can be disposed in the transmission region TA, and a boundary line (where the organic light-emitting layer 130 and the planarization layer PLN, which can be a moisture penetration path, are continuously removed in one side direction (for example, the first direction or the second direction)) can be formed. Therefore, even when cut (or separated), the outside of the boundary line formed by at least one bottom tangent UCL1 or UCL2 can be a cutting possible area that can prevent moisture from penetrating toward the pixel P. Therefore, in the transparent display panel 110 according to another embodiment of the present invention, the cutting possible area formed by at least one bottom tangent UCL1 or UCL2 can be disposed in the transmission region TA, so that a cuttable transparent display panel can be implemented or realized, which can be manufactured in various sizes by being divided according to the field to which the transparent display panel 110 is applied and its use.

[0128] Figure 12 is a view illustrating another embodiment according to the present invention, Figure 3 of the region B shown. Figure 13 is according to another embodiment of the present invention, along Figure 12 a cross-sectional view taken along the line V-V' shown. Figure 14 is according to another embodiment of the present invention, along Figure 12 a cross-sectional view taken along the line VI-VI' shown. In the elements of the bottom tangent in the transparent display panel 110 described with reference to Figures 1 to 11 are modified in Figures 12 to 14 Therefore, in the following description, the same reference numerals will be given to other identical elements except for the modified elements, and their repeated descriptions will be omitted or briefly provided. Meanwhile, since Figure 12 the line III-III' shown and Figure 10The lines III-III' shown are substantially the same, so their views will be omitted, and their repeated descriptions will be omitted or provided briefly.

[0129] Referring to Figures 12 to 14 , at least one bottom tangent UCL according to another embodiment of the present invention may include a first bottom tangent UCL1 and a second bottom tangent UCL2.

[0130] The first bottom tangent UCL1 may define a touch sensor TS in the transmission region TA. The first bottom tangent UCL1 may be disposed in at least two transmission regions TA adjacent to each other along the first direction (or the Y-axis direction). For example, the first bottom tangent UCL1 may define a touch sensor TS in two transmission regions TA adjacent to each other along the first direction (or the Y-axis direction). The first bottom tangent UCL1 may be configured in the form of a closed loop around the region of the touch sensor TS. For example, the first bottom tangent UCL1 may include a portion extending to intersect the transmission regions TA adjacent to each other along the first direction (or the Y-axis direction) and the second non-transmission region NTA2 located between the adjacent transmission regions TA, and a portion extending along the second direction (or the X-axis direction). For example, the first bottom tangent UCL1 may be configured in the form of a closed loop, in which a plurality of portions parallel to each other along the first direction and separated from each other along the second direction and extending to intersect the adjacent transmission regions TA and the second non-transmission region NTA2 located between the adjacent transmission regions TA, and a plurality of portions parallel to each other along the second direction and separated from each other and extending along the first direction are connected to each other. For example, the closed loop of the first bottom tangent UCL1 may have a rectangular shape, but the embodiments of the present invention are not limited thereto.

[0131] The second bottom tangent UCL2 may be disposed in the transmission region TA and may be disposed adjacent to the touch sensor TS configured by the first bottom tangent UCL1. For example, the second bottom tangent UCL2 may be disposed to extend along the first direction (or the Y-axis direction) in the transmission region TA. The second bottom tangent UCL2 may be configured to intersect a plurality of transmission regions TA arranged in parallel along the first direction. When the second bottom tangent UCL2 extends along the first direction, it may intersect and overlap at least a part of at least one second signal line SL2. The blocking pattern BP may include a first blocking pattern BP1 and a second blocking pattern BP2.

[0132] Referring to Figure 13 , at least one second signal line SL2 may be disposed in the second non-transmission region NTA2 on the substrate 111. At least one second signal line SL2 may extend along the second direction (or the X-axis direction).

[0133] At least one second signal line SL2 may include a scan line SCANL and a touch bridge line TBL. The scan line SCANL and the touch bridge line TBL may include the same material on the buffer layer BF.

[0134] At least one signal line SL2 may be covered by the touch sensor bridging pattern SBP, where the touch sensor bridging pattern SBP is composed of at least a part of at least one insulating layer and at least a part of the planarization layer PLN in the second non-transmissive region NTA2 of the substrate 111. At least one second signal line SL2 may be interposed between at least two transmissive regions TA adjacent to each other in the first direction through the touch sensor bridging pattern SBP.

[0135] The touch sensor bridging pattern SBP may protect at least one signal line SL2 and may be configured to provide a gentle step difference so that the touch sensor electrode TSE is neither separated from nor disconnected from the second non-transmissive region NTA2. For example, the touch sensor bridging pattern SBP may include a first touch sensor bridging pattern SBP1 composed of at least one insulating layer and a second touch sensor bridging pattern SBP2 composed of the planarization layer PLN on the first touch sensor bridging pattern SBP1. The first touch sensor bridging pattern SBP1 and the second touch sensor bridging pattern SBP2 may provide a gentle step difference while covering and protecting at least one signal line SL2, so that the touch sensor electrode TSE may be configured to intersect the second non-transmissive region NTA2 between adjacent transmissive regions TA without being separated or disconnected.

[0136] Referring to Figure 14 , at least a part of each of the first bottom tangent UCL1 and the second bottom tangent UCL2 may be disposed on the substrate 111 in the non-transmissive region NTA. For example, the first bottom tangent UCL1 may span adjacent transmissive regions TA, and when the second bottom tangent UCL2 extends continuously in the first direction, at least a part of each of the first bottom tangent UCL1 and the second bottom tangent UCL2 may be disposed to intersect the second non-transmissive region NTA2. The first bottom tangent UCL1 and the second bottom tangent UCL2 may intersect and overlap at least one second signal line SL2 disposed in the second non-transmissive region NTA2.

[0137] The blocking pattern BP may be disposed at the portion where the first bottom tangent UCL1 and the second bottom tangent UCL2 cross at least one second signal line SL2. For example, the blocking pattern BP may be formed at the portion where the first bottom tangent UCL1 and the second bottom tangent UCL2 cross at least one second signal line SL2.

[0138] The blocking pattern BP is used to prevent the second signal line SL2 from being damaged by the etchant used when forming the first bottom tangent UCL1 and the second bottom tangent UCL2. For example, the blocking pattern BP may be formed between the first bottom tangent UCL1 and the second bottom tangent UCL2 and at least one second signal line SL2. The blocking pattern BP may be formed on the first passivation layer PAS1. For example, the blocking pattern BP may be formed of the same material as other signal lines formed on the first passivation layer PAS1.

[0139] In a transparent display panel 110 according to another embodiment of the present invention, a first bottom tangent UCL1 surrounding at least one of adjacent transmission regions TA and a second bottom tangent UCL2 intersecting the plurality of transmission regions TA are provided, so that a touch sensor TS having an enlarged area can be disposed in the adjacent transmission regions TA, and a boundary line can be formed, wherein the organic light-emitting layer 130 and the planarization layer PLN, which can be moisture penetration paths, are continuously removed in one side direction (e.g., the first direction or the second direction). Therefore, even when cut (or separated), the outside of the boundary line formed by the first and second bottom tangents UCL1 and UCL2 can be a cuttable region capable of preventing moisture penetration toward the pixel P. Accordingly, in a transparent display panel 110 according to another embodiment of the present invention, a cuttable region formed by the first and second bottom tangents UCL1 and UCL2 can be disposed in the transmission region TA, so that a cuttable transparent display panel can be implemented or realized, which can be manufactured in various sizes by being divided according to the field to which the transparent display panel 110 is applied and its use.

[0140] Figure 15 is a diagram illustrating another embodiment according to the present invention, Figure 3 a view of the region B shown. Figure 16 is according to another embodiment of the present invention, along Figure 15 a cross-sectional view taken along the line VII-VII' shown. Figure 17 is according to another embodiment of the present invention, along Figure 15 a cross-sectional view taken along the line VIII-VIII' shown. In the bottom tangent elements in the transparent display panel 110 described with reference to Figures 1 to 14 are modified. Therefore, in the following description, the same reference numerals will be given to other identical elements except for the modified elements, and their repeated description will be omitted or briefly provided. Figures 15 to 17 In

[0141] Referring to Figures 15 to 17, at least one bottom tangent UCL according to another embodiment of the present invention may include a plurality of bottom tangents UCL1, UCL2, UCL3, and UCL4. The plurality of bottom tangents UCL1, UCL2, UCL3, and UCL4 may include a first bottom tangent UCL1, a second bottom tangent UCL2, a third bottom tangent UCL3, and a fourth bottom tangent UCL4.

[0142] The first bottom tangent UCL1 may continuously extend in a first direction (or the Y-axis direction) in the transmission region TA. For example, the first bottom tangent UCL1 may be disposed on one side (or the left side) in the first direction of the transmission region TA. The second bottom tangent UCL2 may continuously extend in a first direction (or the Y-axis direction) in the transmission region TA. For example, the second bottom tangent UCL2 may be disposed on the other side (or the right side) in the first direction of the transmission region TA.

[0143] The first bottom tangent UCL1 and the second bottom tangent UCL2 may be separated from each other in a second direction (or the X-axis direction), and a transmission region TA of a predetermined area is interposed therebetween, and the first bottom tangent UCL1 and the second bottom tangent UCL2 may extend parallel to the first direction (or the Y-axis direction). For example, the touch sensor TS or the touch sensor electrode TSE may be disposed between the first bottom tangent UCL1 and the second bottom tangent UCL2. For example, the first bottom tangent UCL1 and the second bottom tangent UCL2 may be configured to intersect the transmission region TA disposed in parallel in the first direction (or the Y-axis direction). The first bottom tangent UCL1 and the second bottom tangent UCL2 may be configured to intersect the second non-transmission region NTA2 located between the transmission regions TA. The first bottom tangent UCL1 and the second bottom tangent UCL2 may intersect and overlap at least one second signal line SL2 disposed in the second non-transmission region NTA2.

[0144] The third bottom tangent UCL3 may be disposed between the first bottom tangent UCL1 and the second bottom tangent UCL2. The third bottom tangent UCL3 may be connected to each of the first bottom tangent UCL1 and the second bottom tangent UCL2. For example, the third bottom tangent UCL3 may be disposed on one side (or the upper side) of a transmission region TA located between the first bottom tangent UCL1 and the second bottom tangent UCL2.

[0145] The fourth bottom tangent UCL4 may be disposed between the first bottom tangent UCL1 and the second bottom tangent UCL2. The fourth bottom tangent UCL4 may be connected to each of the first bottom tangent UCL1 and the second bottom tangent UCL2. For example, the fourth bottom tangent UCL4 may be disposed on the other side (or the lower side) of a transmission region TA located between the first bottom tangent UCL1 and the second bottom tangent UCL2.

[0146] The third bottom tangent UCL3 and the fourth bottom tangent UCL4 can be separated from each other in the first direction (or the Y-axis direction), and a transmissive area TA is interposed therebetween, and the third bottom tangent UCL3 and the fourth bottom tangent UCL4 can extend parallel to each other in the second direction (or the X-axis direction). For example, the touch sensor TS or the touch sensor electrode TSE can be disposed between the third bottom tangent UCL3 and the fourth bottom tangent UCL4. For example, the third bottom tangent UCL3 and the fourth bottom tangent UCL4 can be connected to each of the first bottom tangent UCL1 and the second bottom tangent UCL2, and a transmissive area TA with a predetermined area is interposed therebetween. The third bottom tangent UCL3 and the fourth bottom tangent UCL4 can be arranged to overlap with the second non-transmissive area NTA2. The third bottom tangent UCL3 and the fourth bottom tangent UCL4 can overlap with at least one second signal line SL2 in the second non-transmissive area NTA2 in parallel. A touch sensor bridging pattern that overlaps with at least one second signal line SL2 in parallel can be interposed between the third bottom tangent UCL3 and the fourth bottom tangent UCL4. One end and the other end of the touch sensor bridging pattern can be separated from the first bottom tangent UCL1 and the second bottom tangent UCL2.

[0147] The first to fourth bottom tangents UCL1, UCL2, UCL3, and UCL4 can be connected to each other to form a closed loop. For example, the first to fourth bottom tangents UCL1, UCL2, UCL3, and UCL4 can have a rectangular shape, but the embodiments of the present invention are not limited thereto.

[0148] Referring to Figure 16 , the third bottom tangent UCL3 can be disposed in the second non-transmissive area NTA2 on the substrate 111. In addition, the fourth bottom tangent NTA2 can be disposed in the second non-transmissive area NTA2 on the substrate 111.

[0149] The third bottom tangent UCL3 can be disposed parallel to at least one signal line SL2 in the second non-transmissive area NTA2 on the substrate 111. For example, the third bottom tangent UCL3 can overlap with at least one signal line SL2 in parallel. The third bottom tangent UCL3 can overlap with at least one of the scan line SCANL and the touch bridge line TBL in parallel.

[0150] One end and the other end of the third bottom tangent UCL3 can be connected to the first bottom tangent UCL1 and the second bottom tangent UCL2. For example, one end of the third bottom tangent UCL3 can be connected to the first bottom tangent UCL1, and the other end of the third bottom tangent UCL3 can be connected to the second bottom tangent UCL2. The first bottom tangent UCL1 and the second bottom tangent UCL2 connected to the third bottom tangent UCL3 can intersect and overlap with at least one second signal line SL2.

[0151] The blocking pattern BP can be disposed at the portions where the first to fourth bottom tangents UCL1, UCL2, UCL3, and UCL4 intersect with at least one second signal line SL2.

[0152] The blocking pattern BP is used to prevent the second signal line SL2 from being damaged by the etchant used when forming the first to fourth bottom tangents UCL1, UCL2, UCL3, and UCL4. For example, the blocking pattern BP can be formed between the first to fourth bottom tangents UCL1, UCL2, UCL3, and UCL4 and at least one second signal line SL2. The blocking pattern BP can be formed on the first passivation layer PAS1. For example, the blocking pattern BP can be formed of the same material as other signal lines formed on the first passivation layer PAS1.

[0153] Refer to Figure 17 , the third bottom tangent UCL3 can be disposed in the second non-transmissive region NTA2 on the substrate 111. In addition, the fourth bottom tangent UCL4 can be disposed in the second non-transmissive region NTA2 on the substrate 111.

[0154] In the third bottom tangent UCL3, the first undercut pattern UCP31 can be disposed by removing at least a portion of the interlayer insulating layer ILD, the first passivation layer PAS1, and the second passivation layer PAS2, and the second undercut pattern UCP32 can be disposed on the first undercut pattern UCP31 by removing at least a portion of the planarization layer PLN.

[0155] The first undercut pattern UCP31 can be disposed to cover at least one second signal line SL2 disposed in the second non-transmissive region NTA2. The second undercut pattern UCP32 can have an eaves structure that protrudes further than the first undercut pattern UCP31. An undercut region can be included below the edge of the second undercut pattern UCP32.

[0156] The third undercut region UCL3 can separate or disconnect the organic light-emitting layer 130 and the second electrode 140 extending to the second non-transmissive region NTA2 and the adjacent transmissive region TA, so that a touch sensor electrode TSE having an island pattern and separated from the second electrode 140 can be disposed in each of the adjacent transmissive regions TA.

[0157] In a transparent display panel 110 according to another embodiment of the present invention, a plurality of bottom cut lines UCL1, UCL2, UCL3, and UCL4 may be provided in the transmissive region TA, so that a touch sensor TS may be provided in the transmissive region TA, and a boundary line may be formed, in which the organic light-emitting layer 130 and the planarization layer PLN, which may serve as a moisture penetration path, are continuously removed in one side direction (e.g., the first direction or the second direction). Therefore, even when cut (or separated), the outside of the boundary line formed by the plurality of bottom cut lines UCL1, UCL2, UCL3, and UCL4 may be a cuttable region capable of preventing moisture penetration toward the pixel P. Therefore, in a transparent display panel 110 according to another embodiment of the present invention, a cuttable region formed by a plurality of bottom cut lines UCL1, UCL2, UCL3, and UCL4 may be provided in the transmissive region TA, so that a cuttable transparent display panel may be implemented or realized, which may be manufactured by being divided into various sizes according to the field to which the transparent display panel 110 is applied and its use.

[0158] Figure 18 is a view illustrating region B according to another embodiment of the present invention, Figure 3 as shown. Figure 19 is a cross-sectional view taken along line IX-IX’ according to another embodiment of the present invention, Figure 18 as shown. Figure 20 is a cross-sectional view taken along line X-X’ according to another embodiment of the present invention. Figure 18 In the transparent display panel 110 described with reference to Figures 1 to 17 , the elements of the bottom cut line are modified in Figures 18 to 20 . Therefore, in the following description, the same reference numerals will be assigned to other identical elements except for the modified elements, and their repeated description will be omitted or briefly provided.

[0159] Referring to Figures 18 to 20 , the transmissive region TA according to another embodiment of the present invention may include a touch sensor support portion TSSP and at least one bottom cut line UCL.

[0160] The touch sensor support portion TSSP may be provided in the transmissive region TA. The touch sensor support portion TSSP may define a touch sensor TS in the transmissive region TA. The touch sensor support portion TSSP may be configured as an island pattern of a region surrounding the touch sensor TS. For example, the touch sensor support portion TSSP may include a bottom cut region at its edge portion or along the edge of the touch sensor electrode TSE.

[0161] The touch sensor support part TSSP can be configured such that the second electrode 140 extending from the light-emitting element ED is separated or disconnected at the edge portion of the touch sensor support part TSSP. The touch sensor TS can be formed above the touch sensor support part TSSP. The touch sensor TS can include a touch sensor electrode TSE. The touch sensor support part TSSP can separate or disconnect the second electrode 140 of the light-emitting element ED through the undercut area of its edge portion, so that the touch sensor electrode TSE having an island pattern can be configured on the touch sensor support part TSSP.

[0162] The touch sensor support part TSSP may not overlap with the non-transmissive area NTA. The touch sensor support part TSSP may not overlap with at least one second signal line SL2 provided in the second non-transmissive area NTA2, but embodiments of the present invention are not limited thereto, and the touch sensor support part TSSP may overlap with at least one second signal line SL2. For example, although Figure 18 It is shown that the touch sensor support part TSSP is provided in one transmissive area TA, and the touch sensor support part TSSP can be configured to extend to at least one adjacent transmissive area TA. For example, the touch sensor support part TSSP can be configured to extend to the adjacent transmissive area TA via the second non-transmissive area NTA2. The touch sensor support part TSSP may overlap with at least one second signal line SL2. The blocking pattern BP can be provided at the portion where the touch sensor support part TSSP overlaps with at least one second signal line SL2, but embodiments of the present invention are not limited thereto.

[0163] At least one undercut line UCL can be provided in the transmissive area TA and can be provided adjacent to the touch sensor TS configured by the touch sensor support part TSSP. For example, at least one undercut line UCL can be provided to extend in the first direction (or Y-axis direction) in the transmissive area TA. At least one undercut line UCL can be configured to intersect with a plurality of transmissive areas TA arranged in parallel in the first direction. When at least one undercut line UCL extends in the first direction, it can intersect and overlap with at least a part of at least one signal line SL2.

[0164] Referring to Figure 19 , the touch sensor support part TSSP can be provided in the transmissive area TA on the substrate 111. At least one undercut line UCL can be provided on the substrate 111 adjacent to the touch sensor support part TSSP in the transmissive area TA.

[0165] In the touch sensor support part TSSP, the first touch sensor support pattern TSSP1 can be set by removing at least a part of the interlayer insulating layer ILD, the first passivation layer PAS1, and the second passivation layer PAS2. The second touch sensor support pattern TSSP2 can be set on the first touch sensor support pattern TSSP1 by removing at least a part of the planarization layer PLN. The first touch sensor support pattern TSSP1 can be composed of at least a part of at least one insulating layer, and the second touch sensor support pattern TSSP2 can be composed of the planarization layer PLN. The edge part of the second touch sensor support pattern TSSP2 can have an eaves structure that protrudes further compared to the first touch sensor support pattern TSSP1. A undercut area can be included under the edge of the second touch sensor support pattern TSSP2.

[0166] The second electrode 140 of the light-emitting element ED provided on the touch sensor support part TSSP is separated or disconnected from the second electrode 140 of the light-emitting element ED located at the edge part of the touch sensor support part TSSP through the undercut area, whereby the touch sensor electrode TSE can be set. The touch sensor electrode TSE can be set as an island pattern on the touch sensor support part TSSP.

[0167] In at least one undercut line UCL, the first undercut pattern UCP1 can be set by removing at least a part of the interlayer insulating layer ILD, the first passivation layer PAS1, and the second passivation layer PAS2. The second undercut pattern UCP2 can be set on the first undercut pattern UCP1 by removing at least a part of the planarization layer PLN. The edge part of the second undercut pattern UCP2 can have an eaves structure that protrudes further compared to the first undercut pattern UCP1. A undercut area can be included under the edge of the second undercut pattern UCP2.

[0168] At least one undercut line UCL can separate or disconnect the organic light-emitting layer 130 extending from adjacent light-emitting elements ED, and when setting the undercut line UCL by removing at least a part of the planarization layer PLN, the undercut line UCL can separate or disconnect the planarization layer PLN that is an organic insulating layer. Therefore, at least one undercut line UCL can form a boundary line (where the organic light-emitting layer 130 and the planarization layer PLN that can be used as a moisture penetration path are continuously removed in the first direction (or Y-axis direction)), and moisture penetration toward one side or the other can be avoided based on the boundary line formed by at least one undercut line UCL.

[0169] Refer to Figure 20, at least one second signal line SL2 can be disposed in the second non-transmissive region NTA2 on the substrate 111. At least one second signal line SL2 can extend along the second direction (or X-axis direction). At least one signal line SL2 can be protected by a line coverage pattern LCP, and the line coverage pattern LCP includes at least one insulating layer and at least a part of the planarization layer PLN in the second non-transmissive region NTA2 of the substrate 111. For example, the line coverage pattern LCP can include a first line coverage pattern LCP1 formed of at least one insulating layer and a second line coverage pattern LCP2 formed of the planarization layer PLN on the first line coverage pattern LCP2.

[0170] In the transparent display panel 110 according to another embodiment of the present invention, the touch sensor support portion TSSP and at least one bottom cut line UCL are disposed in the transmissive region TA, so that a touch sensor TS can be disposed in the transmissive region TA, and a boundary line can be formed, where the organic light emitting layer 130 and the planarization layer PLN that can serve as a moisture penetration path are continuously removed in one side direction (for example, the first direction or the second direction). Therefore, even when cut (or separated), the outside of the boundary line formed by at least one bottom cut line UCL can be a cuttable region capable of preventing moisture penetration toward the pixel P. Therefore, in the transparent display panel 110 according to another embodiment of the present invention, the cuttable region formed by at least one bottom cut line UCL can be disposed in the transmissive region TA, so that a cuttable transparent display panel can be implemented or realized, which can be manufactured in various sizes by being divided according to the field and use to which the transparent display panel 110 is applied.

[0171] Figure 21 is a cross-sectional view illustrating a transparent display device according to another embodiment of the present invention.

[0172] Refer to Figure 21 , the transparent display panel 110 according to another embodiment of the present invention can include: a display area DA, in which a plurality of pixels are disposed to display an image; and a non-display area NDA, in which no image is displayed.

[0173] The transparent display panel 110 according to another embodiment of the present invention can include at least one bottom cut line UCL that extends from the non-display area NDA to the display area DA along the first direction (or Y-axis direction).

[0174] The transparent display panel 110 can include dam patterns DAM1 and DAM2 that divide the display area DA into at least two or more. The dam patterns DAM1 and DAM2 can be configured in a closed-loop form surrounding at least a part of the display area DA and the non-display area NDA (or the border area). For example, the dam patterns DAM1 and DAM2 can include a first dam pattern DAM1 and a second dam pattern DAM2.

[0175] The first weir pattern DAM1 can be configured to surround a display area DA located on the left side in the second direction (or the X-axis direction). The second weir pattern DAM2 can be configured to surround a display area DA located on the right side in the second direction (or the X direction).

[0176] The first weir pattern DAM1 and the second weir pattern DAM2 can be separated from each other in the second direction (or the X-axis direction). Optionally, the first weir pattern DAM1 and the second weir pattern DAM2 can be arranged such that at least some adjacent portions thereof overlap each other at least partially.

[0177] The transparent display panel 110 can include a plurality of gate drivers 205a and 205b. For example, the plurality of gate drivers 205a and 205b can include a first gate driver 205a and a second gate driver 205b. The first gate driver 205a can be disposed in a non-display area NDA located on the left side in the second direction (or the X-axis direction), and the second gate driver 205b can be disposed in a non-display area NDA located on the right side in the second direction (or the X-axis direction). For example, the first weir pattern DAM1 can be arranged to surround the first gate driver 205a and the left portion of the display area DA, and the second weir pattern DAM2 can be arranged to surround the second gate driver 205b and the right portion of the display area DA.

[0178] The transparent display panel 110 can include first and second source driver integrated circuits (hereinafter referred to as "ICs") 210a and 210b, first and second flexible films 220a and 220b, first and second circuit boards 230a and 230b, and first and second timing controllers 240a and 240b.

[0179] The first source driver IC 210a, the first flexible film 220a, the first circuit board 230a, and the first timing controller 240a can be connected to the left display area DA defined by the first weir pattern DAM1, and the second source driver IC 210b, the second flexible film 220b, the second circuit board 230b, and the second timing controller 240b can be connected to the right display area DA defined by the second weir pattern DAM2.

[0180] The cutting portion CP can be provided between the first weir pattern DAM1 and the second weir pattern DAM2. The cutting portion CP is a portion where the transparent display panel 110 can be separated or cut by a cutting device such as a laser or a wheel. For example, the display areas DA surrounded by the first weir pattern DAM1 and the second weir pattern DAM2 can be the display areas DA of the transparent display panels 110a and 110b that are independent of each other by being separated or cut via the cutting portion CP.

[0181] The first dam pattern DAM1 and the second dam pattern DAM2 may be non-display areas NDA (or border areas) of each of the separate transparent display panels 110a and 110b. For example, the central portion of the display area DA where the first dam pattern DAM1 and the second dam pattern DAM2 cross in the first direction (or Y-axis direction) is the display area DA before cutting, but may be the non-display area NDA (or border area) after cutting.

[0182] Figure 22 is a view illustrating area C according to another embodiment of the present invention. Figure 21 as shown. Figure 23 is a cross-sectional view taken along line XI-XI' according to another embodiment of the present invention. Figure 22 as shown. Figure 24 is a cross-sectional view taken along line XI-XI' according to another embodiment of the present invention. Figure 22 as shown.

[0183] In combination Figure 21 with reference to Figures 22 to 24 , the transparent display panel 110 may include a plurality of transmissive areas TA that are arranged in parallel in the first direction (or Y-axis direction) and separated from each other in the second direction (or X-axis direction). At least one bottom cutting line UCL extending in the first direction (or Y-axis direction) may be provided in each transmissive area TA. The at least one bottom cutting line UCL may include a plurality of bottom cutting lines UCL1, UCL2, UCL3, and UCL4. The plurality of bottom cutting lines UCL1, UCL2, UCL3, and UCL4 may include a first bottom cutting line UCL1, a second bottom cutting line UCL2, a third bottom cutting line UCL3, and a fourth bottom cutting line UCL4.

[0184] The first to fourth bottom cutting lines UCL1, UCL2, UCL3, and UCL4 may be connected to each other to form a touch electrode TS in the transmissive area TA, and the first and second bottom cutting lines UCL1 and UCL2 may continuously extend in the first direction (or Y-axis direction) to form an anti-moisture permeation boundary line.

[0185] A cutting possible area CPA may be provided between the first dam pattern DAM1 and the second dam pattern DAM2. Even if the transparent display panel 110 is cut, the cutting possible area CPA may be an area where moisture permeation resistance reliability can be obtained through the first and second dam patterns DAM1 and DAM2 and the plurality of bottom cutting lines UCL1, UCL2, UCL3, and UCL4.

[0186] Multiple bottom cutting lines UCL1, UCL2, UCL3, and UCL4 can be provided in the entire area of the transparent display panel 110. The multiple bottom cutting lines UCL1, UCL2, UCL3, and UCL4 can be provided to overlap with the first and second dam patterns DAM1 and DAM2.

[0187] Referring Figure 23 , the transparent display panel 110 according to another embodiment of the present invention may include, provided on the first substrate 111: a light-shielding layer LS; multiple data lines DL1, DL2, DL3, and DL4; a reference line REFL; a pixel power supply line VDDL; a common power supply line VSSL; a buffer layer BF; an active layer ACT of a thin-film transistor; a gate insulating layer GI; a gate GE; a first source / drain SDE1; a second source / drain SDE2; an interlayer insulating layer ILD; a first passivation layer PAS1; a second passivation layer PAS2; a planarization layer PLN; a light-emitting element ED; a bank layer BA, a packaging layer EPAS, etc. In addition, the transparent display panel 110 may include: a color filter CF1 provided on a second substrate (opposite substrate) 112 disposed to face the first substrate 111; and a black matrix BM. The first substrate 111 and the second substrate 112 may be joined to each other by a connecting member Fill.

[0188] The transparent display panel 110 according to another embodiment of the present invention may include multiple bottom cutting lines UCL1, UCL2, UCL3, and UCL4 located in the transmissive region TA.

[0189] Among the multiple bottom cutting lines UCL1, UCL2, UCL3, and UCL4, the first and second bottom cutting lines UCL1 and UCL2 may be provided between the first dam pattern DAM1 and the light-emitting element ED. The first and second bottom cutting lines UCL1 and UCL2 may be provided between the first dam pattern DAM1 and the light-emitting element ED to prevent the penetration of moisture that can penetrate through the first dam pattern DAM1. At least a part of the dam pattern may be provided parallel to at least one bottom cutting line. At least one bottom cutting line may be provided adjacent to and parallel to the dam pattern. Therefore, in the transparent display panel 110 according to another embodiment of the present invention, even when cutting the cutting area CPA located between the first dam pattern DAM1 and the second dam pattern DAM2 by a cutting device such as a laser or a wheel, since the penetration of moisture can be avoided through at least one bottom cutting line UCL, a cuttable transparent display panel can be implemented or realized, which can be manufactured by being divided into various sizes according to the field to which the transparent display panel 110 is applied and its use.

[0190] Referring Figure 24 , the transparent display panel 110 according to another embodiment of the present invention may further include a plurality of upper passivation layers 115 covering the color filter CF1 of the second substrate 112.

[0191] A plurality of upper passivation layers 115 may be disposed to be separated from each other, and a transmissive region TA of the display region DA may be interposed therebetween. The plurality of upper passivation layers 115 may be disposed to cover the color filters. For example, the plurality of upper passivation layers 115 may be disposed to cover the plurality of color filters CF1 and CF2. In addition, the plurality of upper passivation layers 115 may be disposed to cover the plurality of color filters CF1 and CF2 and the black matrix BM. For example, the plurality of upper passivation layers 115 may be made of an organic material.

[0192] In the transparent display panel 110 according to another embodiment of the present invention, a plurality of bottom cut lines UCL1, UCL2, UCL3, and UCL4 of the organic light-emitting layer 130 on the first substrate 111 are separated or disconnected, and the upper passivation layers 115 on the second substrate 112 may be disposed to be separated from each other, so as to block the moisture penetration path through the second substrate 112.

[0193] According to another embodiment of the present invention, a dam pattern may be omitted between the first substrate 111 and the second substrate 112 of the transparent display panel 110, and the transparent display panel 110 may further include side sealing members disposed at edge portions of the first substrate 111 and the second substrate 112. The side sealing members may be used to compensate for the moisture resistance reliability for the omitted dam pattern.

[0194] A transparent display device according to one or more embodiments of the present invention will be described below.

[0195] A transparent display device according to one or more embodiments of the present invention may include: a substrate including a non-transmissive region and a transmissive region, the non-transmissive region including a light-emitting region in which a light-emitting element is disposed; a plurality of first signal lines disposed on the substrate in the non-transmissive region and extending in a first direction; at least one second signal line disposed on the substrate in the non-transmissive region and extending in a second direction intersecting the first direction; a touch sensor disposed on the substrate in the transmissive region; and at least one bottom cut line disposed adjacent to the touch sensor.

[0196] According to one or more embodiments of the present invention, the at least one bottom cut line may extend in the first direction or the second direction to be adjacent to the touch sensor.

[0197] According to one or more embodiments of the present invention, the at least one bottom cut line may be disposed to be adjacent to the touch sensor in the transmissive region.

[0198] According to one or more embodiments of the present invention, the at least one bottom cut line may extend in the first direction to intersect the transmissive region.

[0199] According to one or more embodiments of the present invention, the at least one bottom tangent line may intersect and overlap at least a part of the at least one second signal line.

[0200] According to one or more embodiments of the present invention, the at least one bottom tangent line may be disposed adjacent to the touch sensor in the non-transmissive region.

[0201] According to one or more embodiments of the present invention, the at least one bottom tangent line may extend in the second direction to intersect the non-transmissive region.

[0202] According to one or more embodiments of the present invention, the at least one bottom tangent line may overlap at least a part of the at least one second signal line in parallel.

[0203] According to one or more embodiments of the present invention, the touch sensor may include touch sensor electrodes arranged in an island pattern.

[0204] According to one or more embodiments of the present invention, the touch sensor electrodes may not overlap the at least one second signal line.

[0205] According to one or more embodiments of the present invention, the touch sensor electrodes may be disposed in the transmissive region.

[0206] According to one or more embodiments of the present invention, the touch sensor electrodes may overlap the at least one second signal line.

[0207] According to one or more embodiments of the present invention, the touch sensor electrodes may be disposed in at least two transmissive regions adjacent to each other in the first direction, and the at least one second signal line may be interposed between the at least two transmissive regions.

[0208] According to one or more embodiments of the present invention, the at least one bottom tangent line may be disposed to separate or disconnect the organic light-emitting layer for forming the light-emitting element.

[0209] According to one or more embodiments of the present invention, the light-emitting element may include a first electrode, an organic light-emitting layer, and a second electrode. The second electrode may include: a cathode for forming the light-emitting element in the non-transmissive region; and a touch sensor electrode for forming the touch sensor in the transmissive region.

[0210] According to one or more embodiments of the present invention, the at least one bottom tangent line may be disposed to separate or disconnect the cathode from the touch sensor electrode.

[0211] According to one or more embodiments of the present invention, the transparent display device may further include: a planarization layer on the substrate; and at least one insulating layer between the substrate and the planarization layer, wherein at least one bottom tangent line may be set by removing at least a portion of the at least one insulating layer and the planarization layer.

[0212] According to one or more embodiments of the present invention, at least a portion of the at least one bottom tangent line may intersect and overlap with the at least one second signal line, and the transparent display device may further include a blocking pattern disposed at a portion where the at least one bottom tangent line intersects with the at least one second signal line.

[0213] According to one or more embodiments of the present invention, the blocking pattern may be located between the at least one bottom tangent line and the at least one second signal line.

[0214] According to one or more embodiments of the present invention, the at least one bottom tangent line may include: a first bottom tangent line surrounding the touch sensor electrode in the transmissive region; and a second bottom tangent line extending in the first direction to intersect the transmissive region.

[0215] According to one or more embodiments of the present invention, the first bottom tangent line may not overlap with the at least one second signal line.

[0216] According to one or more embodiments of the present invention, at least a portion of the first bottom tangent line may intersect and overlap with the at least one second signal line.

[0217] According to one or more embodiments of the present invention, the at least one bottom tangent line may include: a first bottom tangent line and a second bottom tangent line that are separated from each other in the second direction and extend parallel to each other in the first direction in the transmissive region, with the touch sensor electrode interposed between the first bottom tangent line and the second bottom tangent line; and a third bottom tangent line and a fourth bottom tangent line that are separated from each other in the first direction and extend parallel to each other in the second direction, with the touch sensor electrode located between the first bottom tangent line and the second bottom tangent line interposed between the third bottom tangent line and the fourth bottom tangent line.

[0218] According to one or more embodiments of the present invention, each of the first bottom tangent line and the second bottom tangent line may intersect and overlap with the at least one second signal line.

[0219] According to one or more embodiments of the present invention, the third bottom tangent line and the fourth bottom tangent line may be connected to the first bottom tangent line and the second bottom tangent line.

[0220] According to one or more embodiments of the present invention, each of the third bottom tangent line and the fourth bottom tangent line may overlap parallel to the at least one second signal line.

[0221] According to one or more embodiments of the present invention, the transparent display device may further include a touch sensor bridging pattern, which is interposed between the third bottom tangent line and the fourth bottom tangent line and overlaps parallel to the at least one second signal line.

[0222] According to one or more embodiments of the present invention, one end and the other end of the touch sensor bridging pattern may be separated from the first bottom tangent line and the second bottom tangent line.

[0223] According to one or more embodiments of the present invention, the touch sensor electrodes may be disposed in at least two transmissive regions adjacent to each other along the first direction, and the at least one second signal line is interposed between the at least two transmissive regions through the touch sensor bridging pattern.

[0224] According to one or more embodiments of the present invention, the transmissive region may include a touch sensor support portion having a bottom cut region along an edge of the touch sensor electrode, and the at least one bottom tangent line may extend along the first direction to be adjacent to the touch sensor support portion and intersect the transmissive region.

[0225] According to one or more embodiments of the present invention, the touch sensor support portion may not overlap with the at least one second signal line.

[0226] According to one or more embodiments of the present invention, the touch sensor support portion may overlap with the at least one second signal line.

[0227] According to one or more embodiments of the present invention, the transparent display device may further include a blocking pattern, which is disposed at a portion where the touch sensor support portion and the at least one second signal line overlap each other.

[0228] According to one or more embodiments of the present invention, the blocking pattern may be located between the touch sensor support portion and the at least one second signal line.

[0229] According to one or more embodiments of the present invention, the touch sensor support portion may include: a first support pattern formed by at least a part of the at least one insulating layer; and a second support pattern disposed on the first support pattern and formed by the planarization layer, and the bottom cut region of the touch sensor support portion may be set such that the second support pattern protrudes further than the first support pattern.

[0230] According to one or more embodiments of the present invention, the transparent display device may further include: a relative substrate disposed facing the substrate, the relative substrate including a color filter disposed corresponding to the light-emitting region; and a connection member connecting the substrate and the relative substrate.

[0231] According to one or more embodiments of the present invention, the substrate may include a display region and a non-display region near the display region, and the transparent display device may further include a dam pattern disposed between the substrate and the relative substrate and provided in the non-display region on the substrate.

[0232] According to one or more embodiments of the present invention, the dam pattern may be provided as a closed loop surrounding the non-display region on the substrate.

[0233] According to one or more embodiments of the present invention, at least a part of the dam pattern may be disposed parallel to the at least one bottom tangent line.

[0234] According to one or more embodiments of the present invention, the at least one bottom tangent line may be disposed to overlap the dam pattern.

[0235] According to one or more embodiments of the present invention, the at least one bottom tangent line may be disposed adjacent to and parallel to the dam pattern.

[0236] According to one or more embodiments of the present invention, the transparent display device may further include a side sealing member disposed to cover edges of the substrate and the relative substrate.

[0237] According to one or more embodiments of the present invention, the relative substrate may further include a plurality of upper passivation layers covering the color filter, and the plurality of upper passivation layers may be separated from each other and a transmissive region may be interposed between the plurality of upper passivation layers.

[0238] According to one or more embodiments of the present invention, the at least one bottom tangent line may be configured in a closed loop form, in which a plurality of portions extending parallel to each other and separated from each other in the second direction along the first direction and a plurality of portions extending parallel to each other and separated from each other in the first direction along the second direction are connected to each other.

[0239] According to one or more embodiments of the present invention, the first signal line may include a touch line, and a touch sensor contact portion may be provided inside the at least one bottom tangent line, wherein the touch line and the touch sensor may be electrically connected to each other via the touch sensor contact portion.

[0240] According to one or more embodiments of the present invention, the at least one bottom tangent line may include a first bottom tangent pattern and a second bottom tangent pattern, the second bottom tangent pattern may be formed to protrude further than the first bottom tangent pattern, and a bottom tangent area may be included under an edge of the second bottom tangent pattern.

[0241] According to one or more embodiments of the present invention, the at least one second signal line may be protected by a line covering pattern, and the line covering pattern may include a first line covering pattern formed of the at least one insulating layer and a second line covering pattern formed of the planarization layer on the first line covering pattern.

[0242] According to one or more embodiments of the present invention, the touch sensor electrode may be configured to intersect a non-transmissive area located between adjacent transmissive areas without being separated or disconnected.

[0243] According to one or more embodiments of the present invention, a second electrode of a light emitting element disposed on the touch sensor support portion may be separated or disconnected from a second electrode of a light emitting element located at an edge portion of the touch sensor support portion through the bottom tangent area to provide the touch sensor electrode.

[0244] According to one or more embodiments of the present invention, the touch sensor support portion may be configured as an island pattern surrounding an area of the touch sensor.

[0245] It will be apparent to those of ordinary skill in the art that various modifications and variations can be made to the device of the present invention without departing from the scope of the present invention. Accordingly, the present invention is intended to cover modifications and variations of the present invention that fall within the scope of the claims and their equivalents.

Claims

1. A transparent display device, comprising: A substrate, the substrate comprising a non-transmission area and a transmission area, the non-transmission area comprising a light-emitting area, and a light-emitting element is disposed in the light-emitting area; a plurality of first signal lines, the first signal lines being arranged in the non-transmission area on the substrate and extending along a first direction; at least one second signal line, the second signal line being disposed in the non-transmission area on the substrate and extending along a second direction intersecting the first direction; a touch sensor, the touch sensor being disposed in the transmission area on the substrate; as well as At least one undercut line is disposed adjacent to the touch sensor. 2 . The transparent display device according to claim 1 , wherein the at least one undercut line extends in the first direction or the second direction to be adjacent to the touch sensor. 3 . The transparent display device of claim 1 , wherein the at least one undercut line is disposed adjacent to the touch sensor in the transmission area. 4 . The transparent display device of claim 3 , wherein the at least one undercut line extends in the first direction to intersect the transmission area. 5 . The transparent display device according to claim 4 , wherein the at least one undercut line intersects and overlaps at least a portion of the at least one second signal line. 6 . The transparent display device of claim 1 , wherein the at least one undercut line is disposed adjacent to the touch sensor in the non-transmission area. 7 . The transparent display device of claim 6 , wherein the at least one undercut line extends in the second direction to intersect the non-transmission area. 8 . The transparent display device of claim 7 , wherein the at least one undercut line overlaps in parallel with at least a portion of the at least one second signal line. 9 . The transparent display device of claim 1 , wherein the touch sensor comprises touch sensor electrodes arranged in an island pattern. 10 . The transparent display device of claim 9 , wherein the touch sensor electrode does not overlap with the at least one second signal line. 11 . The transparent display device of claim 9 , wherein the touch sensor electrode is disposed in the transmission area. 12 . The transparent display device of claim 9 , wherein the touch sensor electrode overlaps the at least one second signal line. 13 . The transparent display device according to claim 9 , wherein the touch sensor electrodes are disposed in at least two transmission areas adjacent to each other along the first direction, and the at least one second signal line is interposed between the at least two transmission areas. 14 . The transparent display device according to claim 1 , wherein the at least one undercut line is provided to separate or disconnect an organic light emitting layer constituting the light emitting element.

15. The transparent display device according to claim 1, wherein the light emitting element comprises a first electrode, an organic light emitting layer and a second electrode, The second electrode comprises: a cathode in the non-transmitting region for constituting the light-emitting element; and a touch sensor electrode in the transmission area for constituting the touch sensor. 16 . The transparent display device according to claim 15 , wherein the at least one undercut line is disposed to separate or disconnect the cathode electrode from the touch sensor electrode.

17. The transparent display device according to claim 15, further comprising: a planarization layer on the substrate; as well as at least one insulating layer between the substrate and the planarization layer, The at least one undercut line is provided by removing at least a portion of the at least one insulating layer and the planarization layer.

18. The transparent display device according to claim 17, wherein at least a portion of the at least one undercut line intersects and overlaps with the at least one second signal line, The transparent display apparatus further includes a blocking pattern disposed at a portion where the at least one undercut line and the at least one second signal line intersect each other. 19 . The transparent display device of claim 18 , wherein the blocking pattern is located between the at least one undercut line and the at least one second signal line.

20. The transparent display device according to claim 17, wherein the at least one undercut line comprises: a first undercut line surrounding the touch sensor electrode in the transmissive region; as well as A second bottom cut line extends along the first direction to intersect the transmission area. 21 . The transparent display device of claim 20 , wherein the first undercut line does not overlap with the at least one second signal line. 22 . The transparent display device of claim 20 , wherein at least a portion of the first undercut line intersects and overlaps the at least one second signal line.

23. The transparent display device according to claim 17, wherein the at least one undercut line comprises: a first undercut line and a second undercut line, the first undercut line and the second undercut line being spaced apart from each other in the second direction in the transmission area and extending in parallel in the first direction, the touch sensor electrode being interposed between the first undercut line and the second undercut line; as well as A third undercut line and a fourth undercut line, wherein the third undercut line and the fourth undercut line are separated from each other in the first direction and extend in parallel in the second direction, and a touch sensor electrode located between the first undercut line and the second undercut line is inserted between the third undercut line and the fourth undercut line. 24 . The transparent display device of claim 23 , wherein each of the first undercut line and the second undercut line intersects and overlaps the at least one second signal line. 25 . The transparent display apparatus of claim 23 , wherein the third undercut line and the fourth undercut line are connected to the first undercut line and the second undercut line. 26 . The transparent display device of claim 23 , wherein each of the third undercut line and the fourth undercut line overlaps the at least one second signal line in parallel. 27 . The transparent display device of claim 23 , further comprising a touch sensor bridge pattern interposed between the third undercut line and the fourth undercut line and overlapping the at least one second signal line in parallel. 28 . The transparent display device of claim 27 , wherein one end and the other end of the touch sensor bridge pattern are spaced apart from the first undercut line and the second undercut line.

29. The transparent display device according to claim 27, wherein the touch sensor electrodes are disposed in at least two transmission areas adjacent to each other along the first direction, and the at least one second signal line is interposed between the at least two transmission areas through the touch sensor bridge pattern.

30. The transparent display device according to claim 17, wherein the transmission area includes a touch sensor support portion having an undercut area along an edge of the touch sensor electrode, The at least one undercut line extends along the first direction to be adjacent to the touch sensor supporting portion and to intersect the transmission area. 31 . The transparent display device of claim 30 , wherein the touch sensor supporting portion does not overlap with the at least one second signal line. 32 . The transparent display device of claim 30 , wherein the touch sensor supporting portion overlaps the at least one second signal line. 33 . The transparent display device of claim 32 , further comprising a blocking pattern disposed at a portion where the touch sensor supporting part and the at least one second signal line overlap each other. 34 . The transparent display device according to claim 33 , wherein the blocking pattern is located between the touch sensor supporting part and the at least one second signal line.

35. The transparent display device according to claim 30, wherein the touch sensor supporting portion comprises: a first supporting pattern, the first supporting pattern being constituted by at least a portion of the at least one insulating layer; as well as a second supporting pattern, the second supporting pattern being arranged on the first supporting pattern and being composed of the planarization layer, The undercut region of the touch sensor support portion is configured such that the second support pattern protrudes further than the first support pattern.

36. The transparent display device according to claim 1, further comprising: an opposite substrate disposed facing the substrate, the opposite substrate comprising a color filter disposed corresponding to the light emitting area; as well as A connecting member connects the substrate to the opposing substrate.

37. The transparent display device according to claim 6, wherein the substrate comprises a display area and a non-display area located near the display area, The transparent display device further includes a dam pattern located between the substrate and the opposite substrate and disposed in a non-display area on the substrate.

38. The transparent display device of claim 37, wherein the dam pattern is provided in a closed loop surrounding a non-display area on the substrate. 39 . The transparent display apparatus according to claim 37 , wherein at least a portion of the dam pattern is disposed in parallel with the at least one undercut line. 40 . The transparent display device of claim 39 , wherein the at least one undercut line is disposed to overlap the dam pattern. 41 . The transparent display device of claim 39 , wherein the at least one undercut line is disposed adjacent to and in parallel with the dam pattern. 42 . The transparent display apparatus of claim 36 , further comprising a side sealing member disposed to cover edges of the substrate and the opposite substrate.

43. The transparent display device according to claim 36, wherein the opposite substrate further comprises a plurality of upper passivation layers covering the color filters, The plurality of upper passivation layers are spaced apart from each other with the transmission region interposed therebetween.

44. A transparent display device according to claim 1, wherein the at least one bottom cut line is configured in a closed loop form, wherein a plurality of portions extending along the second direction parallel to the first direction and separated from each other and a plurality of portions extending along the first direction parallel to the second direction and separated from each other are connected to each other.

45. The transparent display device according to claim 1, wherein the first signal line comprises a touch line, A touch sensor contact portion is provided inside the at least one undercut line, wherein the touch line and the touch sensor are electrically connected to each other via the touch sensor contact portion.

46. ​​The transparent display device according to claim 1, wherein the at least one undercut line comprises a first undercut pattern and a second undercut pattern, The second undercut pattern is formed to protrude further than the first undercut pattern and includes an undercut area below an edge of the second undercut pattern.

47. The transparent display device according to claim 17, wherein the at least one second signal line is protected by a line covering pattern, The wire capping pattern includes a first wire capping pattern composed of the at least one insulating layer and a second wire capping pattern composed of the planarization layer on the first wire capping pattern.

48. The transparent display device according to claim 9, wherein the touch sensor electrode is configured to intersect with a non-transmission area located between adjacent transmission areas without being separated or disconnected.

49. A transparent display device according to claim 30, wherein the second electrode of the light-emitting element arranged on the touch sensor supporting portion is separated or disconnected from the second electrode of the light-emitting element located at the edge portion of the touch sensor supporting portion through the undercut area to set the touch sensor electrode. 50 . The transparent display device according to claim 30 , wherein the touch sensor supporting portion is configured as an island pattern surrounding an area of ​​the touch sensor.

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