Transparent display device

Abstract

A transparent display device can improve transmittance and clarity. The transparent display device includes a plurality of first signal lines disposed extending in a first direction and spaced apart from each other, a plurality of second signal lines disposed extending in a second direction and spaced apart from each other, a transmissive area disposed between two first signal lines adjacent to each other and two second signal lines adjacent to each other, and a first pixel and a second pixel disposed based on an intersection area in which the first signal lines and the second signal lines intersect each other. The first pixel has a triangular shape, and the second pixel has a triangular shape symmetrical to the first pixel by interposing one of the first signal lines and the second signal lines.

Description

Technical Field

[0001] This disclosure relates to a transparent display device. Background Technology

[0002] With the advancement of the information society, the demand for display devices for displaying images has increased in various forms. Recently, various types of display devices, such as liquid crystal displays (LCDs), plasma display panels (PDPs), organic light-emitting diode (OLED) displays, and quantum dot light-emitting diode (QLED) displays, have been widely used.

[0003] Recently, there has been active research on transparent display devices that allow users to view objects or images arranged on the opposite side of a transmissive display device.

[0004] A transparent display device includes a display area and a non-display area for displaying an image. The display area may include a transmissive area and a non-transmissive area that allow external light to pass through. The transparent display device can have high light transmittance in the display area through the transmissive area. The transparent display device includes a black substrate between sub-pixels to avoid color mixing; however, the black substrate leads to a deterioration in transmittance. Summary of the Invention

[0005] This disclosure is made in view of the above problems, and the purpose of this disclosure is to provide a transparent display device that minimizes the loss of light transmittance caused by a black substrate.

[0006] One or more embodiments of this disclosure provide a transparent display device that can increase the size of the transmissive area.

[0007] One or more embodiments of this disclosure provide a transparent display device that can improve the clarity of image quality.

[0008] One or more embodiments of this disclosure provide a transparent display device that can improve the clarity of an object or image disposed on a rear surface.

[0009] In addition to the technical benefits of this disclosure as described above, those skilled in the art will clearly understand from the following description of this disclosure additional benefits and features.

[0010] According to one aspect of this disclosure, the above and other benefits can be achieved by providing a transparent display device comprising: a plurality of first signal lines extending in a first direction and spaced apart from each other; a plurality of second signal lines extending in a second direction and spaced apart from each other; a transmissive region disposed between two adjacent first signal lines and two adjacent second signal lines; and a first pixel and a second pixel disposed based on an intersection region where the first signal lines and the second signal lines intersect each other, wherein the first pixel has a triangular shape, and the second pixel has a triangular shape symmetrical to the first pixel by interposing one of the first signal lines and the second signal lines.

[0011] According to another aspect of this disclosure, the above and other benefits can be achieved by providing a transparent display device comprising: a plurality of first signal lines extending in a first direction and spaced apart from each other; a plurality of second signal lines extending in a second direction and spaced apart from each other; a transmissive region disposed between two adjacent first signal lines and two adjacent second signal lines; and a first pixel and a second pixel disposed based on an intersection region where the first and second signal lines intersect and symmetrically arranged by interpolating the second signal lines. Each of the first pixel and the second pixel comprises four sub-pixels. Attached Figure Description

[0012] The above and other benefits, features and advantages of this disclosure will become more clearly understood from the following detailed description taken in conjunction with the accompanying drawings:

[0013] Figure 1 This is a perspective view showing a transparent display device according to one embodiment of the present disclosure;

[0014] Figure 2 This is a schematic plan view showing a transparent display panel;

[0015] Figure 3 It shows the setting Figure 2 A schematic diagram of one implementation of pixels in region A;

[0016] Figure 4 It is a detailed diagram showing the shape of the pixels;

[0017] Figure 5 It is a graph showing the ratio of the perimeter of each equal area for each edge angle of a triangle;

[0018] Figure 6 It is shown Figure 3 A schematic diagram of the transistors and capacitors in region B;

[0019] Figure 7 It is shown Figure 3A schematic diagram of the first electrode in region B;

[0020] Figure 8 It is along Figure 3 A cross-sectional view taken from line I-I';

[0021] Figure 9 It shows the setting Figure 2 A schematic diagram of another implementation of pixels in region A;

[0022] Figure 10 It shows the setting Figure 2 A schematic diagram of another implementation of pixels in region A; and

[0023] Figure 11 It shows the setting Figure 2 A schematic diagram of another implementation of pixels in region A. Detailed Implementation

[0024] The advantages and features of this disclosure, and its implementation methods, will become clear from the following embodiments described with reference to the accompanying drawings. However, this disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0025] The shapes, dimensions, scales, angles, and quantities shown in the accompanying drawings to describe embodiments of this disclosure are merely examples, and therefore, this disclosure is not limited to the details shown. Throughout the specification, the same reference numerals denote the same elements. In the following description, detailed descriptions of relevant known functions or configurations will be omitted if it is determined that they would unnecessarily obscure the focus of this disclosure. Where the terms “comprising,” “having,” and “including” are used as described in this specification, an additional part may be added unless “only” is used. Unless otherwise stated, singular terms may include plural forms.

[0026] When interpreting components, even if not explicitly described, the components are interpreted as including error regions.

[0027] When describing positional relationships, for example, when the positional relationship is described as "on," "above," "below," and "next to," one or more parts may be arranged between two other parts unless "adjacent" or "directly" is used.

[0028] It will be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0029] In describing the elements of this disclosure, the terms “first,” “second,” etc., may be used. These terms are intended to identify corresponding elements in relation to other elements, and the basis, order, or number of corresponding elements is not limited by these terms. The expression “connected” or “linked” to another element should be understood as meaning that the element may be directly connected or linked to another element, but unless specifically mentioned, it may be directly connected or linked to another element, or a third element may be inserted between corresponding elements.

[0030] As will be fully understood by those skilled in the art, the features of the various embodiments of this disclosure may be partially or wholly linked or combined with each other, and may be interoperable and technically driven differently. Embodiments of this disclosure may be implemented independently of each other, or may be implemented together in an interdependent manner.

[0031] Hereinafter, examples of transparent display devices according to the present disclosure will be described in detail with reference to the accompanying drawings. Wherever possible, the same reference numerals will be used throughout the drawings to denote the same or similar parts.

[0032] Figure 1 This is a perspective view showing a transparent display device according to one embodiment of the present disclosure. Figure 2 This is a schematic plan view showing a transparent display panel.

[0033] In the following, the X-axis indicates the line parallel to the gate line, the Y-axis indicates the line parallel to the data line, and the Z-axis indicates the height direction of the transparent display device 100.

[0034] Although the transparent display device 100 according to one embodiment of the present disclosure is specifically implemented as an organic light-emitting display device, the transparent display device 100 may be specifically implemented as a liquid crystal display device, a plasma display panel (PDP), a quantum dot light-emitting display (QLED) or an electrophoretic display device.

[0035] Reference Figure 1 and Figure 2 According to one embodiment of the present disclosure, a transparent display device 100 includes a transparent display panel 110, a source driver integrated circuit (IC) 210, a flexible film 220, a circuit board 230, and a timing controller 240.

[0036] The transparent display panel 110 includes a first substrate 111 and a second substrate 112 facing each other. The second substrate 112 may be an encapsulation substrate. The first substrate 111 may be a plastic film, a glass substrate, or a silicon wafer substrate formed using semiconductor processes. The second substrate 112 may be a plastic film, a glass substrate, or an encapsulation film. The first substrate 111 and the second substrate 112 may be made of transparent materials.

[0037] The transparent display panel 110 may include a display area DA that forms pixels P to display an image and a non-display area NDA that does not display an image.

[0038] The display area DA can be configured with a first signal line SL1, a second signal line SL2, and a pixel P, while the non-display area NDA can be configured with a pad area PA for pads and a gating driver 205.

[0039] The first signal line SL1 may extend in a first direction (e.g., the X-axis direction) and may intersect with the second signal line SL2 in the display area DA. The second signal line SL2 may extend in a second direction (e.g., the Y-axis direction). Pixel P may be disposed in the area where the first signal line SL1 and the second signal line SL2 overlap, and emits predetermined or selected light to display an image.

[0040] The gating driver 205 supplies gating signals to the gating lines according to gating control signals provided from the timing controller 240. The gating driver 205 can be positioned on one side of the display area of ​​the transparent display panel 110 or in the non-display areas of the two peripheral sides of the transparent display panel 110 using a panel-in-panel gating driver (GIP) method. Alternatively, the gating driver 205 can be fabricated in a driver chip, mounted on a flexible film, and attached to one or both peripheral sides of the display area of ​​the transparent display panel 110 using a tape auto-bonding (TAB) method.

[0041] For example, such as Figure 2 As shown, the gating driver 205 may include a first gating driver 205a provided in a non-display area NDA above a first peripheral side of the display area DA and a second gating driver 205b provided in a non-display area NDA above a second peripheral side of the display area DA, but is not limited thereto.

[0042] If the source driver IC 210 is manufactured in the driver chip, the source driver IC 140 can be mounted on the flexible film 220 by a chip-on-film (COF) method or a chip-on-plastic (COP) method.

[0043] Pads such as power pads and data pads can be disposed in the pad area PA of the transparent display panel 110. Lines connecting the pads to the source driver IC 210 and lines connecting the pads to the circuit board 230 can be disposed in the flexible film 220. The flexible film 220 can be made by attaching an anisotropic conductive film to the pads, thereby allowing the pads to be connected to the lines of the flexible film 220.

[0044] Figure 3 It shows the setting Figure 2 A schematic diagram of one implementation of pixels in region A. Figure 4 It is a detailed diagram showing the shape of the pixels. Figure 5 It is a graph showing the ratio of the perimeter of each edge angle of a triangle to the perimeter of the same area.

[0045] Reference Figures 3 to 5 The transparent display panel 110 can be classified into a display area DA with pixels P for displaying images and a non-display area NDA that does not display images.

[0046] The display area DA includes a transmissive area TA and a non-transmissive area NTA. The transmissive area TA is the region through which most external incident light passes, while the non-transmissive area NTA is the region through which most external incident light cannot pass. For example, the transmissive area TA can be an area with a transmittance greater than α% (e.g., about 90%), and the non-transmissive area NTA can be an area with a transmittance less than β% (e.g., about 50%). In this case, α is greater than β. Due to the transmissive area TA, the user can view objects or backgrounds arranged above the rear surface of the transparent display panel 110.

[0047] The non-transmissive region NTA can be equipped with multiple first signal lines SL1, multiple second signal lines SL2, and pixel P.

[0048] A first signal line SL1 may extend from the display area DA in a first direction (e.g., the X-axis direction). Multiple first signal lines SL1 may be spaced apart from each other. For example, the first signal line SL1 may include a gating line. In this case, the first signal line SL1 may include two gating lines. For example, the first signal line SL1 may include a first gating line for supplying gating signals to a plurality of sub-pixels SP1, SP2, SP3, and SP4 included in the first pixel P1, and a second gating line for supplying gating signals to a plurality of sub-pixels SP1, SP2, SP3, and SP4 included in the second pixel P2. The first gating line and the second gating line may be disposed between the first pixel P1 and the second pixel P2.

[0049] The second signal line SL2 may extend from the display area DA in a second direction (e.g., the Y-axis direction) and may intersect the first signal line SL1 in the display area DA. Multiple second signal lines SL2 may be configured to be spaced apart from each other.

[0050] The second signal line SL2 may include multiple lines. For example, the second signal line SL2 may include at least one of the following: pixel power line VDD, common power line VSS, reference line REF, or data lines D1, D2, D3, and D4.

[0051] The pixel power line VDD supplies a first power supply to the driving transistors of each of the sub-pixels SP1, SP2, SP3, and SP4 located in the display area DA. The common power line VSS supplies a second power supply to the cathode electrodes of the sub-pixels SP1, SP2, SP3, and SP4 located in the display area DA. This second power supply can be a common power supply shared by the sub-pixels SP1, SP2, SP3, and SP4. The reference line VREF supplies an initialization voltage (or sensing voltage) to the driving transistors of each of the sub-pixels SP1, SP2, SP3, and SP4 located in the display area DA. Each of the data lines D1, D2, D3, and D4 supplies a data voltage to the sub-pixels SP1, SP2, SP3, and SP4.

[0052] When the second signal line SL2 includes a pixel power line VDD, a common power line VSS, a reference line REF, and data lines D1, D2, D3, and D4, the reference line REF and the pixel power line VDD can be positioned between any one of the data lines D1, D2, D3, and D4 and the common power line VSS. For example, as... Figure 3 As shown, the first data line D1, the second data line D2, the pixel power line VDD, the reference line REF, the pixel power line VDD, the third data line D3, and the fourth data line D4 can be set in an appropriate order.

[0053] The reference line REF and the pixel power line VDD can branch off from the area overlapping with pixel P and connect to multiple sub-pixels SP1, SP2, SP3, and SP4. Specifically, the reference line REF and the pixel power line VDD can connect to the circuitry of the multiple sub-pixels SP1, SP2, SP3, and SP4, and can supply a reference signal or a power signal to each of the sub-pixels SP1, SP2, SP3, and SP4.

[0054] When the reference line REF and the pixel power line VDD are located outside the area where the second signal line SL2 is located, the deviation in connection length between the bifurcation point and the circuit portion of each of the multiple sub-pixels SP1, SP2, SP3, and SP4 increases. For example, when the reference line REF is located at the far left of the area where the second signal line SL2 is located, the connection length from the bifurcation point to the circuit portion located to the right of the second signal line SL2 may be longer than the connection length from the bifurcation point to the circuit portion located to the left of the second signal line SL2. In this case, a difference may occur between the signal supplied to the circuit portion located to the right of the second signal line SL2 and the signal supplied to the circuit portion located to the left of the second signal line SL2.

[0055] In a transparent display panel 110 according to one embodiment of the present disclosure, a reference line REF and a pixel power line VDD can be disposed between any one of the plurality of data lines D1, D2, D3, and D4 and a common power line VSS (i.e., in the intermediate region). That is, the reference line REF and the pixel power line VDD can reduce or minimize the deviation in the connection length from the bifurcation point to the circuit portion of each of the sub-pixels SP1, SP2, SP3, and SP4. As a result, the reference line REF and the pixel power line VDD can uniformly supply signals to the circuit portion of each of the plurality of sub-pixels SP1, SP2, SP3, and SP4.

[0056] The transmission region TA can be disposed between adjacent first signal lines SL1. Additionally, the transmission region TA can be disposed between adjacent second signal lines SL2. That is, the transmission region TA can be surrounded, or at least partially surrounded, by two first signal lines SL1 and two second signal lines SL2.

[0057] Pixel P is located in the intersection area IA where the first signal line SL1 and the second signal line SL2 intersect, and displays an image by emitting predetermined light. The light-emitting area EA may correspond to the area in pixel P that emits light.

[0058] According to one embodiment of this disclosure, a transparent display panel 110 may include two pixels in the intersection region IA where the first signal line SL1 and the second signal SL2 intersect each other. More specifically, as... Figure 3 As shown, the transparent display panel 110 may include a first pixel P1 and a second pixel P2 set based on the intersection area IA where the first signal line SL1 and the second signal line SL2 intersect each other.

[0059] like Figure 3 As shown, each of the first pixel P1 and the second pixel P2 may include a first sub-pixel SP1, a second sub-pixel SP2, a third sub-pixel SP3, and a fourth sub-pixel SP4.

[0060] The first sub-pixel SP1 may include a first emitting region EA1 that emits light of a first color, and the second sub-pixel SP2 may include a second emitting region EA2 that emits light of a second color. The third sub-pixel SP3 may include a third emitting region EA3 that emits light of a third color, and the fourth sub-pixel SP4 may include a fourth emitting region EA4 that emits light of a fourth color.

[0061] As an example, the first to fourth emitting regions EA1, EA2, EA3, and EA4 can each emit light of a different color. For example, the first emitting region EA1 can emit red light, the second emitting region EA2 can emit green light, the third emitting region EA3 can emit blue light, and the fourth emitting region EA4 can emit white light. However, the emitting regions are not limited to this example.

[0062] As another example, at least two of the first to fourth emitting regions EA1, EA2, EA3, and EA4 can emit light of the same color. For example, the first emitting region EA1 and the second emitting region EA2 can emit green light, the third emitting region EA2 can emit red light, and the fourth emitting region EA4 can emit blue light. However, the emitting regions are not limited to this example. Furthermore, the arrangement order of sub-pixels SP1, SP2, SP3, and SP4 can be changed in various ways.

[0063] For ease of description, the following description will be based on the following: the first sub-pixel SP1 is a red sub-pixel that emits red light, the second sub-pixel SP2 is a green sub-pixel that emits green light, the third sub-pixel SP3 is a blue sub-pixel that emits blue light, and the fourth sub-pixel SP4 is a white sub-pixel that emits white light.

[0064] In a transparent display panel 110 according to one embodiment of the present disclosure, the arrangement order of the sub-pixels SP1, SP2, SP3, and SP4 included in each of the first pixel P1 and the second pixel P2 may differ from each other. In a transparent display panel 110 according to one embodiment of the present disclosure, considering the spacing between sub-pixels emitting light of the same color, the sub-pixels SP1, SP2, SP3, and SP4 may be disposed in each of the first pixel P1 and the second pixel P2.

[0065] Specifically, sub-pixels SP1, SP2, SP3, and SP4 emitting light of the same color can be configured such that the first spacing distance in the first direction is uniform. In this case, the first spacing distance represents the distance between the center points of adjacent sub-pixels emitting light of the same color in the first direction. The center point can represent the intersection of the straight lines connecting the middle portions of each side. For this purpose, the arrangement order of sub-pixels SP1, SP2, SP3, and SP4 can also be applied to the first pixel P1 that is adjacent to each other in the first direction. In addition, the arrangement order of sub-pixels SP1, SP2, SP3, and SP4 can also be applied to the second pixel P2 that is adjacent to each other in the first direction.

[0066] Subpixels SP1, SP2, SP3, and SP4 that emit light of the same color can be configured such that a second spacing distance in the second direction is adjacent to a first spacing distance in the first direction. The second spacing distance refers to the distance between the center points of adjacent subpixels emitting light of the same color in the second direction.

[0067] Therefore, the first pixel P1 and the second pixel P2, which are adjacent to each other in the second direction, may differ from each other in the arrangement order of the sub-pixels SP1, SP2, SP3, and SP4. Thus, the first pixel P1 and the second pixel P2 may differ from each other in at least one aspect of the shape or luminous region of the sub-pixels SP1, SP2, SP3, and SP4 that emit light of the same color.

[0068] For example, in the first pixel P1, the first sub-pixel SP1 may be located to the left of the second signal line SL2 and in a region relatively adjacent to the first signal line SL1. Conversely, in the second pixel P2, the first sub-pixel SP1 may be located to the right of the second signal line SL2 and in a region relatively far from the first signal line SL1. When the first sub-pixel SP1 of the second pixel P2 is located to the left of the second signal line SL2 or in a region adjacent to the first signal line SL1, the difference between the spacing distance in the second direction and the first spacing distance in the first direction may become too large. Furthermore, the difference in spacing distances in the second direction may also become too large.

[0069] A transparent display panel 110 according to one embodiment of the present disclosure can reduce or minimize the difference between the spacing distance in a second direction and the first spacing distance in a first direction among sub-pixels SP1, SP2, SP3, and SP4 emitting light of the same color. Furthermore, the transparent display panel 110 according to one embodiment of the present disclosure allows the difference between the spacing distances in a second direction among sub-pixels SP1, SP2, SP3, and SP4 emitting light of the same color to be within a specific range. In one embodiment, the difference between the first spacing distance in the first direction and the second spacing distance in the second direction among the sub-pixels SP1, SP2, SP3, and SP4 emitting light of the same color can be less than about 10% of the first spacing distance.

[0070] As one implementation to satisfy this condition, sub-pixels SP1, SP2, SP3, and SP4 that emit light of the same color can be disposed in the first pixel P1 and the second pixel P2 in a diagonal direction. Alternatively, when the sub-pixels SP1, SP2, SP3, and SP4 that emit light of the same color are disposed in the region of the first pixel P1 adjacent to the first signal line SL1, they can be disposed in the region of the second pixel P2 away from the first signal line SL1.

[0071] According to one embodiment of the present disclosure, the transparent display panel 110 can prevent image quality degradation by reducing the deviation in the spacing between sub-pixels SP1, SP2, SP3 and SP4 that emit light of the same color.

[0072] Furthermore, in a transparent display panel 110 according to one embodiment of the present disclosure, the first pixel P1 and the second pixel P2 can be made symmetrical to each other by interposing one of the first signal line SL1 and the second signal line SL2 therebetween. For example, the first pixel P1 and the second pixel P2 can be made symmetrical to each other by interposing the first signal line SL1 therebetween. Although Figure 3 The first pixel P1 and the second pixel P2 are shown to be symmetrical to each other by interposing the first signal line SL1 therebetween, but this disclosure is not limited to this. Figure 3 For example, the first pixel P1 and the second pixel P2 can be made symmetrical to each other by interpolating the second signal line SL2 between them.

[0073] For ease of description, the following description will be based on the first pixel P1 and the second pixel P2 being symmetrical to each other by interpolating the first signal line SL1 between them.

[0074] The first pixel P1 may have a triangular shape, and the second pixel P2 may have a triangular shape symmetrical to the first pixel P1 by inserting the first signal line SL1.

[0075] In this case, such as Figure 4As shown, each of the first pixel P1 and the second pixel P2 may include a first side S1 parallel to the first signal line SL1 and a second side S2 and a third side S3 oriented toward the transmission region TA. That is, each of the first pixel P1 and the second pixel P2 may have a triangular shape formed by the first side S1, the second side S2 and the third side S3.

[0076] In one embodiment, each of the second side S2 and the third side S3 may form an angle of approximately 60° with the first side S1. That is, each of the first pixel P1 and the second pixel P2 may be an equilateral triangle. Figure 5 The diagram shows the ratio of the perimeter of each equal area at each of the triangle's edge angles. (See reference...) Figure 5 When the edge angles of a triangle are approximately 60°, it's important to note that the perimeter ratio for triangles of equal area is minimized. Therefore, it's worth noting that among triangles of equal area, the equilateral triangle has the smallest perimeter.

[0077] In a transparent display panel 110 according to one embodiment of the present disclosure, the edge angle θ1 of pixels P1 and P2 can be formed at approximately 60°, thereby allowing pixels P1 and P2 to have a minimum perimeter.

[0078] The non-transmissive region NTA may include the luminescent region EA and the non-luminescent region NEA.

[0079] The light-emitting area EA can be provided with multiple sub-pixels SP1, SP2, SP3 and SP4 to emit light of a predetermined color, and can include a first light-emitting area EA1, a second light-emitting area EA2, a third light-emitting area EA3 and a fourth light-emitting area EA4 respectively provided in the multiple sub-pixels SP1, SP2, SP3 and SP4.

[0080] The non-emitting region NEA may not emit light and may include a first non-emitting region NEA1, a second non-emitting region NEA2, and a third non-emitting region NEA3. In one embodiment, the non-emitting region NEA may further include at least one of a fourth non-emitting region NEA4 or a fifth non-emitting region NEA5.

[0081] The first non-emitting region NEA1 can be disposed between the first pixel P1 and the second pixel P2 along the first signal line SL1. The first sub-pixel SP1, the second sub-pixel SP2, the third sub-pixel SP3 and the fourth sub-pixel SP4, which emit light of different colors to each other, can be disposed on each side of the first non-emitting region NEA1.

[0082] In detail, since the first non-light-emitting region NEA1 is located between the first pixel P1 and the second pixel P2, the first pixel P1 can be located on one side, and the second pixel P2 can be located on the other side. That is, the first sub-pixel SP1, the second sub-pixel SP2, the third sub-pixel SP3, and the fourth sub-pixel SP4 included in the first pixel P1 can be located on one side of the first non-light-emitting region NEA1, and the first sub-pixel SP1, the second sub-pixel SP2, the third sub-pixel SP3, and the fourth sub-pixel SP4 included in the second pixel P2 can be located on the other side of the first non-light-emitting region NEA1.

[0083] The second non-emitting region NEA2 can be set along the second signal line SL2. The first sub-pixel SP1, the second sub-pixel SP2, the third sub-pixel SP3, and the fourth sub-pixel SP4, which emit light of different colors to each other, can be set on each side of the second non-emitting region NEA2 in the same manner as the first non-emitting region NEA1.

[0084] However, unlike the first non-light-emitting region NEA1, the second non-light-emitting region NEA2 can be configured to pass through the interior of each of the first pixel P1 and the second pixel P2. Therefore, a portion of the first pixel P1 and a portion of the second pixel P2 can be located on one side of the second non-light-emitting region NEA2, and another portion of the first pixel P1 and another portion of the second pixel P2 can be located on the other side of the second non-light-emitting region NEA2. The third sub-pixel SP3 and the fourth sub-pixel SP4 of the first pixel P1, and the first sub-pixel SP1 and the second sub-pixel SP2 of the second pixel P2, can be located on one side of the second non-light-emitting region NEA2.

[0085] The third non-light-emitting region NEA3 can be set between sub-pixels SP1, SP2, SP3 and SP4 on one side of the second non-light-emitting region NEA2 and between sub-pixels SP1, SP2, SP3 and SP4 on the other side of the second non-light-emitting region NEA2.

[0086] The third non-emitting region NEA3 may branch off from the second non-emitting region NEA2 and extend toward the transmission region TA. At this time, the third non-emitting region NEA3 may be tilted relative to the first signal line SL1 and the second signal line SL2.

[0087] In detail, such as Figure 4As shown, the third non-emissive region NEA3 can be set from a point on the second side S2 or the third side S3 of pixels P1 and P2 to the second non-emissive region NEA2. In this case, the third non-emissive region NEA3 can be set perpendicular to the second side S2 or the third side S3 of pixels P1 and P2. Since the length from a point on the second side S2 or the third side S3 of pixels P1 and P2 to the second non-emissive region NEA2 is the shortest, the third non-emissive region NEA3 can be set perpendicular to the second side S2 or the third side S3 of pixels P1 and P2, thus having the minimum length.

[0088] When the third non-emitting region NEA3 is perpendicular to the second side S2 or the third side S3 of pixels P1 and P2, the third non-emitting region NEA3 may be tilted relative to the first signal line SL1 and the second signal line SL2. When each of pixels P1 and P2 is an equilateral triangle, the third non-emitting region NEA3 may form an angle θ2 of approximately 30° relative to the first signal line SL1 and an angle of approximately 60° relative to the second signal line SL2.

[0089] A fourth non-emitting region NEA4 may be disposed in one of the sub-pixels SP1, SP2, SP3, and SP4. In one embodiment, each of the plurality of sub-pixels SP1, SP2, SP3, and SP4 may include emitting regions EA1, EA2, EA3, and EA4 composed of a first sub-emitting region SEA1 and a second sub-emitting region SEA2. In this case, the fourth non-emitting region NEA4, which does not emit light, may be disposed between the first sub-emitting region SEA1 and the second sub-emitting region SEA2 of each of the plurality of sub-pixels SP1, SP2, SP3, and SP4.

[0090] The fourth non-emitting region NEA4 can branch off from the second non-emitting region NEA2 and extend toward the transmission region TA. At this time, the fourth non-emitting region NEA4 can be tilted relative to the first signal line SL1 and the second signal line SL2.

[0091] In detail, such as Figure 4 As shown, the fourth non-emissive region NEA4 can be set from a point on the second side S2 or the third side S3 of pixels P1 and P2 to the second non-emissive region NEA2. In this case, the fourth non-emissive region NEA4 can be set perpendicular to the second side S2 or the third side S3 of pixels P1 and P2. Since the length from the point on the second side S2 or the third side S3 of pixels P1 and P2 to the second non-emissive region NEA2 is the shortest, the fourth non-emissive region NEA4 can be set perpendicular to the second side S2 or the third side S3 of pixels P1 and P2, thus having the minimum length.

[0092] When the fourth non-emissive region NEA4 is perpendicular to the second side S2 or the third side S3 of pixels P1 and P2, the fourth non-emissive region NEA4 can be tilted relative to the first signal line SL1 and the second signal line SL2. When each of pixels P1 and P2 is an equilateral triangle, the fourth non-emissive region NEA4 can form an angle θ2 of approximately 30° relative to the first signal line SL1 and an angle of approximately 60° relative to the second signal line SL2. The fourth non-emissive region NEA4 can be arranged parallel to the third non-emissive region NEA3.

[0093] A fifth non-emitting region NEA5 may be disposed between each of pixels P1 and P2 and the transmissive region TA. The fifth non-emitting region NEA5 may be disposed along the second side S2 and the third side S3 of each of the first pixel P1 and the second pixel P2. In one embodiment, the fifth non-emitting region NEA5 may not be disposed between the fourth sub-pixel SP4 of each of the first pixel P1 and the second pixel P2 and the transmissive region TA.

[0094] The non-luminescent area NEA may be provided with a black substrate BM. The black substrate BM may include a first black substrate BM1 and a second black substrate BM2.

[0095] The first black substrate BM1 can be disposed in the first non-emitting area NEA1, the second non-emitting area NEA2, and the third non-emitting area NEA3. The first black substrate BM1 can be disposed between multiple sub-pixels SP1, SP2, SP3, and SP4 to prevent color mixing between the multiple sub-pixels SP1, SP2, SP3, and SP4.

[0096] A second black substrate BM2 may be disposed within the fifth non-emitting region NEA5. The second black substrate BM2 may be disposed between each of the plurality of sub-pixels SP1, SP2, SP3, and SP4 included in pixels P1 and P2 and the transmission region TA to prevent light emitted from each of the plurality of sub-pixels SP1, SP2, SP3, and SP4 from being perceived as a different color depending on the viewing angle. In one embodiment, the second black substrate BM2 may not be disposed between the fourth sub-pixel SP4 and the transmission region TA. When the fourth sub-pixel SP4 is a white pixel emitting white light, the white light emitted from the fourth sub-pixel SP4 does not change depending on the viewing angle. Therefore, by not disposing the second black substrate BM2 between the fourth sub-pixel SP4 and the transmission region TA, transmittance can be improved and light loss caused by the second black substrate BM2 can be reduced.

[0097] Because the black substrate BM is made of a material that blocks or absorbs light, light emitted from sub-pixels SP1, SP2, SP3, and SP4 will not pass through the area where the black substrate BM is located, and external incident light will not penetrate the area where the black substrate BM is located. Therefore, the area where the black substrate BM is located corresponds to the non-emitting area NEA that does not emit light.

[0098] Since the black substrate BM blocks or absorbs light, it can significantly affect the transmittance of the transparent display panel 110. Specifically, when the area where the black substrate BM is provided (i.e., the non-light-emitting area NEA) increases, the transmittance of the transparent display panel 110 decreases. On the other hand, when the non-light-emitting area NEA decreases, the transmittance of the transparent display panel 110 increases.

[0099] According to one embodiment of the present disclosure, a transparent display panel 110 has a pixel P structure for reducing the area where a black substrate BM is disposed.

[0100] In a transparent display panel 110 according to one embodiment of the present disclosure, two pixels can be configured to be symmetrical to each other in an intersection region IA. Therefore, in a transparent display panel 110 according to one embodiment of the present disclosure, two pixels, the first pixel P1 and the second pixel P2, can correspond to a transmissive region TA. In this transparent display panel 110, since the total size of the transmissive region TA is increased, the transmittance can be improved.

[0101] Furthermore, in a transparent display panel 110 according to one embodiment of the present disclosure, compared to a transparent display panel where pixels P and transmissive regions TA correspond one-to-one, the total outer length of the transmissive regions TA can be reduced.

[0102] Furthermore, in a transparent display panel 110 according to one embodiment of the present disclosure, each of the first pixel P1 and the second pixel P2 can be configured as an equilateral triangle with the shortest perimeter among triangles of the same area. In a transparent display panel 110 according to one embodiment of the present disclosure, the edge corners of pixels P1 and P2 can be formed at approximately 60°, thereby allowing pixels P1 and P2 to have the shortest perimeter.

[0103] Considering the above description, the transparent display panel 110 according to one embodiment of the present disclosure can reduce or minimize the outer length of the transmissive region TA. Therefore, the transparent display panel 110 according to one embodiment of the present disclosure can reduce or minimize the overall size of the second black substrate BM2 and improve the transmittance.

[0104] Furthermore, in a transparent display panel 110 according to one embodiment of the present disclosure, a third non-emitting region NEA3 is formed as a second side S2 or a third side S3 perpendicular to pixels P1 and P2, thereby reducing or minimizing the length of the third non-emitting region NEA3. Therefore, the transparent display panel 110 according to one embodiment of the present disclosure can reduce the overall size of the first black substrate BM1 and improve transmittance.

[0105] Furthermore, in a transparent display panel 110 according to one embodiment of the present disclosure, a fourth non-light-emitting region NEA4 is formed as a second side S2 or a third side S3 perpendicular to pixels P1 and P2, thereby reducing or minimizing the length of the fourth non-light-emitting region NEA4. Therefore, even if the light-emitting region EA is divided into a first sub-light-emitting region SEA1 and a second sub-light-emitting region SEA2, the transparent display panel 110 according to one embodiment of the present disclosure can reduce or minimize the loss of the light-emitting region EA caused by the fourth non-light-emitting region NEA4.

[0106] Furthermore, in a transparent display panel 110 according to one embodiment of the present disclosure, a first pixel P1 and a second pixel P2 are disposed in an intersection region IA where the first signal line SL1 and the second signal line SL2 intersect each other, and each of the first pixel P1 and the second pixel P2 includes a plurality of sub-pixels SP1, SP2, SP3, and SP4 disposed based on the intersection region IA. In the transparent display panel 110 according to one embodiment of the present disclosure, the plurality of sub-pixels SP1, SP2, SP3, and SP4 are disposed together based on the intersection region IA, thereby improving the clarity and readability of the image quality.

[0107] The following will refer to Figures 6 to 8 A more detailed description of the structure of pixel P.

[0108] Figure 6 It is shown Figure 3 A schematic diagram of the transistors and capacitors in region B. Figure 7 It is shown Figure 3 A schematic diagram of the first electrode in region B. Figure 8 It is along Figure 3 A cross-sectional view taken from line I-I'.

[0109] Reference Figures 6 to 8 Each of the first pixel P1 and the second pixel P2 may include a first sub-pixel SP1, a second sub-pixel SP2, a third sub-pixel SP3, and a fourth sub-pixel SP4. Each of the plurality of sub-pixels SP1, SP2, SP3, and SP4 may include circuit elements (including at least one or more transistors TR1, TR2, and TR3 and a capacitor CST) and a light-emitting diode.

[0110] At least one or more transistors may include a driving transistor TR1, a switching transistor TR2, and a sensing transistor TR3.

[0111] The switching transistor TR2 switches on and off according to the gating signal supplied to the gating line, and charges the capacitor CST with the data voltage supplied from the data line.

[0112] The sensing transistor TR3 is used to sense the threshold voltage deviation of the driving transistor TR1 that causes the degradation of image quality based on the sensing signal.

[0113] The driving transistor TR1 switches according to the data voltage charged in the capacitor CST to generate a data current from the power supply supplied from the pixel power line VDD, and then supplies the generated data current to the first electrode 120 of the sub-pixels SP1, SP2, SP3 and SP4.

[0114] The driving transistor TR1 may include an active layer ACT, a gate electrode GE, a source electrode SE, and a drain electrode DE, and the capacitor CST may include a first capacitor electrode CSTE1, a second capacitor electrode CSTE2, and a third capacitor electrode CSTE3.

[0115] Specifically, the first capacitor electrode CSTE1 may be disposed above the first substrate 111. The first capacitor electrode CSTE1 may serve as a light-shielding layer to block external light entering the active layer ACT from the region TRA where the driving transistor TR1 is disposed. The first capacitor electrode CSTE1 may be formed of a single layer or multiple layers, and it is made of any one of Mo, Al, Cr, Au, Ti, Ni, Nd and Cu or an alloy thereof.

[0116] A buffer film BF may be disposed above the first capacitor electrode CSTE1 and the light-shielding layer (not shown). The buffer film BF can protect transistors TR1, TR2 and TR3 and capacitor CST from moisture penetration through the first substrate 111, which is susceptible to moisture permeability, and may be formed of an inorganic film (e.g., a silicon oxide film (SiOx), a silicon nitride film (SiNx), or a multilayer film of SiOx and SiNx).

[0117] The active layer ACT can be disposed above the buffer film BF. The active layer ACT can be formed from a silicon-based semiconductor material or an oxide-based semiconductor material.

[0118] The gate insulating film GI can be disposed above the active layer ACT. The gate insulating film GI can be formed of an inorganic film (e.g., a silicon oxide film (SiOx), a silicon nitride film (SiNx), or a multilayer film of SiOx and SiNx).

[0119] The gate electrode GE and the second capacitor electrode CSTE2 may be disposed above the gate insulating film GI. The second capacitor electrode CSTE2 may extend from the gate electrode GE. The gate electrode GE and the second capacitor electrode CSTE2 may be formed of a single layer or multiple layers, and may be made of any one of Mo, Al, Cr, Au, Ti, Ni, Nd and Cu or alloys thereof.

[0120] although Figure 8 The diagram illustrates the top-gate method for forming the driving transistor TR1, with the gate electrode GE positioned above the active layer ACT. However, the driving transistor TR1 is not limited to... Figure 8 Example. The driving transistor TR1 can be formed using either a bottom-gate method where the gate electrode GE is located below the active layer ACT, or a dual-gate method where the gate electrode GE is located above and below the active layer ACT.

[0121] The interlayer dielectric film (ILD) can be disposed above the gate electrode GE and the second capacitor electrode CSTE2. The interlayer dielectric film (ILD) can be made of inorganic films (e.g., silicon oxide film (SiOx), silicon nitride film (SiNx), or multilayer films of SiOx and SiNx).

[0122] The source electrode SE, drain electrode DE, and third capacitor electrode CSTE3 can be disposed above the interlayer dielectric film ILD. The third capacitor electrode CSTE3 can extend from the source electrode SE. The source electrode SE and drain electrode DE can be connected to the active layer ACT through contact holes passing through the gate insulating film GI and the interlayer dielectric film ILD.

[0123] The source electrode SE, drain electrode DE, and third capacitor electrode CSTE3 can be made of any one of Mo, Al, Cr, Au, Ti, Ni, Nd, and Cu or their alloys, in single or multiple layers.

[0124] The passivation film PAS used to insulate the driving transistor TR1 from the capacitor CST can be disposed above the source electrode SE, the drain electrode DE, and the third capacitor electrode CSTE3. The passivation film PAS can be made of inorganic films (such as silicon oxide films (SiOx), silicon nitride films (SiNx), or multilayer films of SiOx and SiNx).

[0125] although Figure 8 The capacitor CST shown includes a first capacitor electrode CSTE1, a second capacitor electrode CSTE2, and a third capacitor electrode CSTE3, but the capacitor is not limited to... Figure 8 Example. The capacitor CST may include at least two or more of a first capacitor electrode CSTE1, a second capacitor electrode CSTE2, and a third capacitor electrode CSTE3.

[0126] like Figure 6As shown, the circuit element provided above may include a first circuit region TRA provided with at least one or more transistors TR1, TR2 and TR3, and a second circuit region CSTA provided with a capacitor CST.

[0127] The first circuit region TRA may include four transistor regions TRA1, TRA2, TRA3, and TRA4 disposed on one side of the first signal line SL1, and four transistor regions TRA5, TRA6, TRA7, and TRA8 disposed on the other side of the first signal line SL1. The four transistor regions TRA1, TRA2, TRA3, and TRA4 disposed on one side of the first signal line SL1 may be configured symmetrically with respect to the first signal line SL1 and the four transistors TRA5, TRA6, TRA7, and TRA8 disposed on the other side of the first signal line SL1.

[0128] The driving transistor TR1, the switching transistor TR2, and the sensing transistor TR3 can be disposed in each of the first to eighth transistor regions TRA1, TRA2, TRA3, TRA4, TRA5, TRA6, TRA7, and TRA8.

[0129] The second circuit region CSTA can be disposed between the first circuit region TRA and the transmission region TA. Specifically, the second circuit region CSTA may include, on one side of the first signal line SL1, a first capacitor region CSTA1 disposed between the first transistor region TRA1 and the transmission region TA, a second capacitor region CSTA2 disposed between the second transistor region TRA2 and the transmission region TA, a third capacitor region CSTA3 disposed between the third transistor region TRA3 and the transmission region TA, and a fourth capacitor region CSTA4 disposed between the fourth transistor region TRA4 and the transmission region TA. Additionally, on the other side of the first signal line SL1, the second circuit region CSTA may include a fifth capacitor region CSTA5 disposed between the fifth transistor region TRA5 and the transmission region TA, a sixth capacitor region CSTA6 disposed between the sixth transistor region TRA6 and the transmission region TA, a seventh capacitor region CSTA7 disposed between the seventh transistor region TRA7 and the transmission region TA, and an eighth capacitor region CSTA8 disposed between the eighth transistor region TRA8 and the transmission region TA.

[0130] The capacitor CST can be located in each of the first to eighth capacitor regions CSTA1, CSTA2, CSTA3, CSTA4, CSTA5, CSTA6, CSTA7 and CSTA8.

[0131] The driving transistor TR1 of the first transistor region TRA1 can be switched on and off according to the data voltage in the capacitor CST charged in the first capacitor region CSTA1, so as to supply power from the pixel power line VDD to the first electrode 120 of the first sub-pixel SP1 of the first pixel P1. Similarly, the driving transistor TR1 of the second transistor region TRA2 can be switched on and off according to the data voltage in the capacitor CST charged in the second capacitor region CSTA2, so as to supply power from the pixel power line VDD to the first electrode 120 of the second sub-pixel SP2 of the first pixel P1. The driving transistor TR1 of the third transistor region TRA3 can be switched on and off according to the data voltage in the capacitor CST charged in the third capacitor region CSTA3, so as to supply power from the pixel power line VDD to the first electrode 120 of the third sub-pixel SP3 of the first pixel P1. The driving transistor TR1 of the fourth transistor region TRA4 can be switched on and off according to the data voltage in the capacitor CST charged in the fourth capacitor region CSTA4, so as to supply power from the pixel power line VDD to the first electrode 120 of the fourth sub-pixel SP4 of the first pixel P1.

[0132] The driving transistor TR1 of the fifth transistor region TRA5 can be switched on and off according to the data voltage in the capacitor CST charged in the fifth capacitor region CSTA5, so as to supply power from the pixel power line VDD to the first electrode 120 of the first sub-pixel SP1 of the second pixel P2. Similarly, the driving transistor TR1 of the sixth transistor region TRA6 can be switched on and off according to the data voltage in the capacitor CST charged in the sixth capacitor region CSTA6, so as to supply power from the pixel power line VDD to the first electrode 120 of the second sub-pixel SP2 of the second pixel P2. The driving transistor TR1 of the seventh transistor region TRA7 can be switched on and off according to the data voltage in the capacitor CST charged in the seventh capacitor region CSTA7, so as to supply power from the pixel power line VDD to the first electrode 120 of the third sub-pixel SP3 of the second pixel P2. The driving transistor TR1 of the eighth transistor region TRA8 can be switched on and off according to the data voltage in the capacitor CST charged in the eighth capacitor region CSTA8, so as to supply power from the pixel power line VDD to the first electrode 120 of the fourth sub-pixel SP4 of the second pixel P2.

[0133] In a transparent display panel 110 according to one embodiment of the present disclosure, the first circuit region TRA and the second circuit region CSTA may be configured not to overlap with at least a portion of the first signal line SL1 and at least a portion of the second signal line SL2. In a transparent display panel 110 according to one embodiment of the present disclosure, at least one or more transistors TR1, TR2 and TR3 and capacitor CST may not overlap with the first signal line SL1 and the second signal line SL2, thereby preventing the generation of parasitic capacitance between overlapping electrodes.

[0134] Furthermore, in a transparent display panel 110 according to one embodiment of the present disclosure, the first circuit region TRA may be configured to be closer to the cross region IA than the second circuit region CSTA. At least one or more transistors TR1, TR2, and TR3 disposed in the first circuit region TRA may be connected to a connecting line branching from at least one of the first signal line SL1 or the second signal line SL2. In a transparent display panel 110 according to one embodiment of the present disclosure, the first circuit region TRA may be configured to be adjacent to the cross region IA, thereby reducing or minimizing the length of the connecting lines used to connect transistors TR1, TR2, and TR3 to signal lines SL1 and SL2. As a result, the transparent display panel 110 according to one embodiment of the present disclosure can reduce or minimize the voltage loss transmitted from the first signal line SL1 or the second signal line SL2 due to resistance.

[0135] Furthermore, in a transparent display panel 110 according to one embodiment of the present disclosure, a second circuit region CSTA may be disposed between the first circuit region TRA and the transmissive region TA. In this case, the shape of the transmissive region TA may be determined by a capacitor CST disposed in the second circuit region CSTA.

[0136] In the capacitor CST, at least one side oriented toward the transmission region TA may have the same shape as the pixel P. Specifically, in the capacitor CST, at least one side oriented toward the transmission region TA may be tilted relative to each of the first signal line SL1 and the second signal line SL2.

[0137] The capacitor CST disposed in each of the first to eighth capacitor regions CSTA1, CSTA2, CSTA3, CSTA4, CSTA5, CSTA6, CSTA7 and CSTA8 may include a first side CS1 oriented toward the transmission region TA.

[0138] The first side CS1 of capacitor CST may be tilted and not parallel or perpendicular to the first signal line SL1. That is, the first side CS1 of capacitor CST may have an angle of about 60° relative to the first signal line SL1.

[0139] Additionally, the first side CS1 of the capacitor CST may be tilted and not parallel or perpendicular to the second signal line SL2. That is, the first side CS1 of the capacitor CST may have an angle of approximately 30° relative to the second signal line SL2.

[0140] The capacitor CST can be configured to have the largest width area in the region excluding the first circuit region TRA, the first signal line SL1, and the second signal line SL2 from pixel P. Therefore, in a transparent display panel 110 according to one embodiment of the present disclosure, the first side CS1 of the capacitor CST may have the same shape as the side of each of the sub-pixels SP1, SP2, SP3, and SP4 oriented towards the transmission region TA. Furthermore, in a transparent display panel 110 according to one embodiment of the present disclosure, the end of the first side CS1 of the capacitor CST may be equal to the end of each of the sub-pixels SP1, SP2, SP3, and SP4 oriented towards the transmission region TA. In one embodiment, the end of the capacitor CST may be the same as the end of the first electrode 120 oriented towards the transmission region TA.

[0141] The transparent display panel 110 according to one embodiment of the present disclosure, as described above, can ensure the maximum capacity of the capacitor CST and improve brightness.

[0142] Furthermore, in a transparent display panel 110 according to one embodiment of the present disclosure, the shape of the transmissive region TA can be freely changed according to the shape of the first side CS1 of the capacitor CST, thereby obtaining the design freedom of the transmissive region TA without losing transmittance.

[0143] Refer to Figure 8 A planarization film PLN can be disposed above the passivation film PAS to planarize the step difference caused by the driving transistor TR1 and the capacitor CST. The planarization film PLN can be formed from an organic film such as acrylic resin, epoxy resin, phenolic resin, polyamide resin and polyimide resin.

[0144] A light-emitting diode composed of a first electrode 120, an organic light-emitting layer 130, and a second electrode 140, as well as a dam 125, can be disposed above the planarization film PLN.

[0145] The first electrode 120 may be disposed above the planarization film PLN for each of the sub-pixels SP1, SP2, SP3, and SP4. The first electrode 120 is not disposed in the transmission region TA.

[0146] The first electrode 120 can be connected to the driving transistor TR1. Specifically, the first electrode 120 can be connected to one of the source electrode SE and the drain electrode DE through a contact hole passing through the planarization film PLN. For example, the first electrode 120 can be connected to the source electrode SE or a third capacitor electrode CSTE3 extending from the source electrode SE through a contact hole passing through the planarization film PLN.

[0147] In one implementation, such as Figure 7 As shown, the first electrode 120 may include a first anode electrode AE1, a second anode electrode AE2, and a connecting electrode CE.

[0148] The first anode electrode AE1 and the second anode electrode AE2 may be spaced apart from each other on the same layer. The connecting electrode CE may be formed on the same layer as the first anode electrode AE1 and the second anode electrode AE2 to connect the first anode electrode AE1 and the second anode electrode AE2. The first anode electrode AE1, the second anode electrode AE2 and the connecting electrode CE may be formed as a single unit.

[0149] The connecting electrode CE may include a first connecting portion CE1, a second connecting portion CE2, a third connecting portion CE3, and a fourth connecting portion CE4. The first connecting portion CE1 may extend from the first anode electrode AE1 toward the transmission region TA by a predetermined or selected length, and the second connecting portion CE2 may extend from the second anode electrode AE2 toward the transmission region TA by a predetermined or selected length. The third connecting portion CE3 may connect the first connecting portion CE1 and the second connecting portion CE2. The fourth connecting portion CE4 may extend from the third connecting portion CE3 and may be electrically connected to the source electrode SE or drain electrode DE of the driving transistor TR1 through a contact hole. Although... Figure 7 The connection electrode CE is shown to include a fourth connection portion CE4, but this disclosure is not limited to this. Figure 5 Example. The fourth connection portion CE4 can be omitted from the connection electrode CE. In this case, the third connection portion CE3 can be electrically connected to the source electrode SE or drain electrode DE of the drive transistor TR1 through a contact hole.

[0150] In a transparent display panel 110 according to one embodiment of the present disclosure, when either the first anode electrode AE1 or the second anode electrode AE2 malfunctions due to particles that may occur during the process, at least one of the first connection portion CE1, the second connection portion CE2, the third connection portion CE3, or the fourth connection portion CE4 of the connecting electrode CE can be short-circuited to repair it. Alternatively, in a transparent display panel 110 according to one embodiment of the present disclosure, a short-circuited anode electrode can be repaired by using a repair line (not shown) to connect the corresponding anode electrode to the anode electrode of another adjacent sub-pixel.

[0151] although Figure 7The first electrode 120 is shown to include a first anode electrode AE1, a second anode electrode AE2, and a connecting electrode CE, but this disclosure is not limited to this. Figure 7 Example. The first electrode 120 may consist of an anode electrode.

[0152] The first electrode 120 may be made of a highly reflective metallic material, such as a deposition structure of Al and Ti (Ti / Al / Ti), a deposition structure of Al and ITO (ITO / Al / ITO), an Ag alloy, and a deposition structure of Ag alloy and ITO (ITO / Ag alloy / ITO). The Ag alloy may be an alloy of Ag, Pd, and Cu. The first electrode 120 may be an anode electrode.

[0153] A dam 125 may be disposed above the planarization film PLN. Furthermore, the dam 125 may be formed to cover or at least partially cover the edge of the first electrode 120 and partially expose the first electrode 120. Specifically, the dam 125 may be formed to cover or at least partially cover the edge of each of the first anode electrode AE1 and the second anode electrode AE2 and expose a portion of each of the first anode electrode AE1 and the second anode electrode AE2. Therefore, the dam 125 can prevent the emission efficiency from deteriorating due to current concentration at the ends of the first anode electrode AE1 and the second anode electrode AE2.

[0154] The dam 125 can define the light-emitting regions EA1, EA2, EA3, and EA4 of sub-pixels SP1, SP2, SP3, and SP4, respectively. The light-emitting regions EA1, EA2, EA3, and EA4 of sub-pixels SP1, SP2, SP3, and SP4 represent regions where the first electrode 120, the organic light-emitting layer 130, and the second electrode 140 are sequentially deposited, and holes from the first electrode 120 and electrons from the second electrode 140 recombine with each other in the organic light-emitting layer 130 to emit light. In this case, since the region where the dam 125 is provided does not emit light, this region can be called the non-light-emitting region NEA, and the region where the dam 125 is not provided and the first electrode 120 is exposed can be called the light-emitting region EA.

[0155] Dike 125 can be formed from an organic film such as acrylic resin, epoxy resin, phenolic resin, polyamide resin and polyimide resin.

[0156] An organic light-emitting layer 130 may be disposed above the first electrode 120. The organic light-emitting layer 130 may include a hole transport layer, a light-emitting layer, and an electron transport layer. In this case, when a voltage is applied to the first electrode 120 and the second electrode 140, holes and electrons move to the light-emitting layer through the hole transport layer and the electron transport layer, respectively, and recombine with each other in the light-emitting layer to emit light.

[0157] In one embodiment, the organic light-emitting layer 130 may be a common layer disposed in sub-pixels SP1, SP2, SP3, and SP4. In this case, the light-emitting layer 130 may be a white light-emitting layer that emits white light.

[0158] In another embodiment, such as Figure 8 As shown, the organic light-emitting layer 130 may include light-emitting layers provided for sub-pixels SP1, SP2, SP3, and SP4, respectively. For example, a green light-emitting layer emitting green light may be disposed in the first sub-pixel SP1, a red light-emitting layer emitting red light may be disposed in the second sub-pixel SP2, a blue light-emitting layer emitting blue light may be disposed in the third sub-pixel SP3, and a white light-emitting layer emitting white light may be disposed in the fourth sub-pixel SP4. In this case, the light-emitting layer of the organic light-emitting layer 130 is not disposed in the transmission region TA.

[0159] The second electrode 140 may be disposed above the organic light-emitting layer 130 and the embankment 125. The second electrode 140 may be disposed in the transmissive region TA and the non-transmissive region NTA including the light-emitting region EA, but is not limited thereto. The second electrode 140 may be disposed only in the non-transmissive region NTA including the light-emitting region EA, but may not be disposed in the transmissive region TA to improve transmittance.

[0160] The second electrode 140 can be a common layer provided for sub-pixels SP1, SP2, SP3, and SP4 to apply the same voltage to the sub-pixels. The second electrode 140 can be formed of a transparent conductive material (TCO) that transmits light, such as ITO or IZO, or a semi-transmissive conductive material, such as Mg, Ag, or an alloy of Mg and Ag. When the second electrode 140 is formed of a semi-transmissive conductive material, emission efficiency can be enhanced through a microcavity. The second electrode 140 can be a cathode electrode.

[0161] An encapsulation film 150 may be disposed above the light-emitting diode. The encapsulation film 150 may also be disposed above the second electrode 140 to cover it. The encapsulation film 150 serves to prevent oxygen or moisture from penetrating into the organic light-emitting layer 130 and the second electrode 140. For this purpose, the encapsulation film 150 may comprise at least one inorganic film and at least one organic film.

[0162] Furthermore, despite Figure 8 As not shown in the diagram, a capping layer may be additionally disposed between the second electrode 140 and the encapsulation film 150.

[0163] The color filter layer 170 may be disposed above the encapsulation film 150. The color filter layer 170 may also be disposed above a surface of the second substrate 112 facing the first substrate 111. In this case, the first substrate 111 with the encapsulation film 150 and the second substrate 112 with the color filter layer 170 can be bonded to each other via a separate adhesive layer 160. Here, the adhesive layer 160 may be an optically clear resin (OCR) layer or an optically clear adhesive (OCA) film.

[0164] The color filter layer 170 can be configured for each of the sub-pixels P1, P2, and P3. Specifically, the color filter layer 170 may include a first color filter CF1, a second color filter CF2, and a third color filter CF3. The first color filter CF1 may be configured to correspond to the light-emitting area EA1 of the first sub-pixel SP1, and may be a green color filter that transmits green light. The second color filter CF2 may be configured to correspond to the light-emitting area EA2 of the second sub-pixel SP2, and may be a red color filter that transmits red light. The third color filter CF3 may be configured to correspond to the light-emitting area EA3 of the third sub-pixel SP3, and may be a blue color filter that transmits blue light.

[0165] In a transparent display panel 110 according to one embodiment of the present disclosure, no polarizer is used, and a color filter layer 170 is disposed above the second substrate 112. When a polarizer is attached to the transparent display panel 110, the transmittance of the transparent display panel 110 is reduced due to the polarizer. When the polarizer is not attached to the transparent display panel 110, there is a problem that external incident light is reflected in the electrodes.

[0166] A transparent display panel 110 according to one embodiment of the present disclosure can prevent a decrease in transmittance because a polarizer is not attached. Additionally, in the transparent display panel 110 according to one embodiment of the present disclosure, a color filter layer 170 can be disposed above the second substrate 112 to partially absorb external incident light, thereby preventing the incident light from being reflected in the electrodes. That is, the transparent display panel 110 according to one embodiment of the present disclosure can reduce external light reflectivity without reducing transmittance.

[0167] Furthermore, a black substrate BM can be positioned between color filters CF. The black substrate BM can also be positioned between sub-pixels SP1, SP2, SP3, and SP4 to prevent color mixing between adjacent sub-pixels SP1, SP2, SP3, and SP4. Additionally, the black substrate BM prevents external incident light from being reflected in the multiple lines (e.g., gate lines, data lines, pixel power lines, common power lines, reference lines, etc.) positioned between sub-pixels SP1, SP2, SP3, and SP4.

[0168] For reference Figure 3The black substrate BM may include a first black substrate BM1 disposed between a plurality of sub-pixels SP1, SP2, SP3 and SP4, and a second black substrate BM2 disposed between each of the plurality of sub-pixels SP1, SP2, SP3 and SP4 and the transmission region TA.

[0169] In one embodiment, the second black substrate BM2 may not be disposed between the fourth sub-pixel SP4 and the transmissive region TA. Since the white light emitted from the fourth sub-pixel SP4 does not change with viewing angle, the transparent display panel 110 according to one embodiment of the present disclosure can improve transmittance and reduce light loss caused by the second black substrate BM2, because the second black substrate BM2 is not disposed between the fourth sub-pixel SP4 and the transmissive region TA.

[0170] In one embodiment, the second black substrate BM2 may have an opening region OA to expose the connection electrode CE of the first electrode 120 disposed in each of the plurality of sub-pixels SP1, SP2, SP3, and SP4. A laser can be applied to the connection electrode CE of the first electrode 120 during the repair process. For the laser to be applied to a precise location, the connection electrode CE of the first electrode 120 needs to be exposed and not covered by the second black substrate BM2.

[0171] The aforementioned black substrate BM may include light-absorbing materials, such as black dyes that completely absorb light in the visible light wavelength range.

[0172] The color filter layer 170 can define a non-transmissive region NTA within the display area DA. Specifically, the area where the color filter CF and the black substrate BM are located can be the non-transmissive region NTA, while other areas can be the transmissive region TA.

[0173] Figure 9 It shows the setting Figure 2 A schematic diagram of another implementation of pixels in region A.

[0174] Besides the black base BM Figure 9 The pixels shown are Figure 3 The pixels shown are essentially the same. The following will be based on... Figure 3 The difference in pixels shown is used to give Figure 7 The description of the pixels shown will be omitted, and detailed descriptions of elements other than the black base BM will be omitted.

[0175] The transparent display panel 110 is categorized into a display area DA with pixels P for displaying images and a non-display area NDA where no images are displayed. The display area DA includes a transmissive area TA and a non-transmissive area NTA.

[0176] The non-transmissive region NTA may be provided with a first signal line SL1 extending in a first direction (X-axis direction), a second signal line SL2 extending in a second direction (Y-axis direction), and a first pixel P1 and a second pixel P2 disposed in the intersection region IA where the first signal line SL1 and the second signal line SL2 intersect each other.

[0177] The non-transmissive region NTA may include the luminescent region EA and the non-luminescent region NEA.

[0178] The light-emitting area EA may be provided with multiple sub-pixels SP1, SP2, SP3 and SP4 to emit light of a predetermined or selected color, and may include a first light-emitting area EA1, a second light-emitting area EA2, a third light-emitting area EA3 and a fourth light-emitting area EA4 respectively provided in the multiple sub-pixels SP1, SP2, SP3 and SP4.

[0179] The non-emitting region NEA may not emit light and may include a first non-emitting region NEA1, a second non-emitting region NEA2, and a third non-emitting region NEA3. In one embodiment, the non-emitting region NEA may also include a fourth non-emitting region NEA4.

[0180] A black substrate BM may be disposed between multiple sub-pixels SP1, SP2, SP3, and SP4 in the non-light-emitting area NEA. Since the black substrate BM is made of a material that blocks or absorbs light, it can significantly affect the transmittance of the transparent display panel 110. Specifically, as the area where the black substrate BM is disposed (i.e., the non-light-emitting area NEA) increases, the transmittance of the transparent display panel 110 decreases. Conversely, as the non-light-emitting area NEA decreases, the transmittance of the transparent display panel 110 increases.

[0181] and Figure 3 Compared to the transparent display panel 110 shown, the transparent display panel 110 according to another embodiment of the present disclosure does not have a second black substrate BM2, thereby reducing the area where the black substrate BM is provided (i.e., the non-light-emitting area NEA). Therefore, the transparent display panel 110 according to another embodiment of the present disclosure is comparable to... Figure 3 The transparent display panel 110 shown further improves transmittance.

[0182] Figure 10 It shows the setting Figure 2 A schematic diagram of another implementation of pixels in region A.

[0183] exist Figure 3 In the first pixel P1 and the second pixel P2 shown, the third non-luminous region NEA3 is uniformly distributed from the points of the second non-luminous region NEA2, which it branches off from, but is not limited to this. For example... Figure 10As shown, the point from which the third non-luminescent region NEA3 branches off to the second non-luminescent region NEA2 can be changed in various ways.

[0184] For reference Figure 3 The transparent display panel 110 can prevent image quality degradation by reducing or minimizing the deviation in the spacing between sub-pixels SP1, SP2, SP3 and SP4 that emit light of the same color.

[0185] In a transparent display panel 110 according to another embodiment of the present disclosure, a third non-emitting region NEA3 is movable from a point (hereinafter referred to as the "bidding point") from which it branches off into a second non-emitting region NEA2, thereby allowing the center point of each of the sub-pixels SP1, SP2, SP3, and SP4 to move. When the center point moves, the deviation in the spacing distance between the sub-pixels SP1, SP2, SP3, and SP4 that emit light of the same color can change. The third non-emitting region NEA3 may branch from the point in the second non-emitting region NEA2 where the deviation in the spacing distance between the sub-pixels SP1, SP2, SP3, and SP4 that emit light of the same color is smallest.

[0186] For example, the third non-luminous region NEA3 between the first sub-pixel SP1 and the fourth sub-pixel SP4 of the first pixel P1 can be seen from its bifurcation point. Figure 3 The third non-luminous region NEA3 of the first pixel P1 is moved above it. On the other hand, the third non-luminous region NEA3 between the second sub-pixel SP2 and the third sub-pixel SP3 of the first pixel P1 can move from its bifurcation point... Figure 3 The third non-luminous region NEA3 of the first pixel P1 shown is moved below.

[0187] Additionally, the third non-luminous region NEA3 between the first sub-pixel SP1 and the fourth sub-pixel SP4 of the second pixel P2 can be seen from its bifurcation point. Figure 3 The third non-luminous region NEA3 of the first pixel P1 is moved below it. On the other hand, the third non-luminous region NEA3 between the second sub-pixel SP2 and the third sub-pixel SP3 of the second pixel P2 can be seen from its bifurcation point... Figure 3 The first pixel P1 moves above the third non-luminous region NEA3.

[0188] In such Figure 10 In the transparent display panel 110 shown, which has a first pixel P1 and a second pixel P2, and as shown... Figure 3 Compared to the transparent display panel 110 shown with a first pixel P1 and a second pixel P2, the deviation in the spacing between sub-pixels SP1, SP2, SP3, and SP4 that emit light of the same color can be reduced. Specifically, in... Figure 10In the transparent display panel 110 shown, which is provided with a first pixel P1 and a second pixel P2, the deviation between the first spacing distance L1 in the first direction and the second spacing distances L2 and L3 in the second direction of the sub-pixels SP1, SP2, SP3 and SP4 that emit light of the same color can be reduced.

[0189] Figure 11 It shows the setting Figure 2 A schematic diagram of another implementation of pixels in region A.

[0190] although Figure 10 The diagram shows that sub-pixels SP1, SP2, SP3, and SP4, included in the first pixel P1 and the second pixel P2, have the same area ratio, but this disclosure is not limited to... Figure 10 Examples.

[0191] In the sub-pixels SP1, SP2, SP3, and SP4 included in the first pixel P1 and the second pixel P2, such as Figure 11 As shown, the area ratio can be changed in various ways depending on the product design.

[0192] In a transparent display panel 110 according to another embodiment of the present disclosure, the third non-light-emitting region NEA3 is movable from the point (hereinafter referred to as the "branching point") of the second non-light-emitting region NEA2 from which it branches, thereby changing the area of ​​the sub-pixels SP1, SP2, SP3 and SP4.

[0193] For example, the third non-luminous region NEA3 between the first sub-pixel SP1 and the fourth sub-pixel SP4 of the first pixel P1 can be seen from its bifurcation point. Figure 3 The third non-luminous region NEA3 of the first pixel P1 shown moves below it. On the other hand, the third non-luminous region NEA3 between the second sub-pixel SP2 and the third sub-pixel SP3 of the first pixel P1 can move from its bifurcation point... Figure 10 The first pixel P1 moves above the third non-luminous region NEA3.

[0194] Additionally, the third non-luminous region NEA3 between the first sub-pixel SP1 and the fourth sub-pixel SP4 of the second pixel P2 can be seen from its bifurcation point. Figure 3 The third non-luminous region NEA3 of the first pixel P1 is moved below it. On the other hand, the third non-luminous region NEA3 between the second sub-pixel SP2 and the third sub-pixel SP3 of the second pixel P2 can be seen from its bifurcation point... Figure 10 The first pixel P1 moves above the third non-luminous region NEA3.

[0195] Therefore, the areas of the first sub-pixel SP1 and the third sub-pixel SP3, which are respectively set in the first pixel P1 and the second pixel P2, can be reduced, while the areas of the second sub-pixel SP2 and the fourth sub-pixel SP4, which are respectively set in the first pixel P1 and the second pixel P2, can be increased.

[0196] In a transparent display panel 110 according to another embodiment of the present disclosure, the point from which the third non-emitting region NEA3 branches off from the second non-emitting region NEA2 can be changed, thereby allowing the area ratio of sub-pixels SP1, SP2, SP3 and SP4 to be freely implemented without losing the transmissive region TA.

[0197] According to this disclosure, two pixels can correspond to one transmissive region. Therefore, the total size of the transmissive region can be increased, and the transmittance can be improved.

[0198] Furthermore, according to this disclosure, two pixels can be configured to have a triangular shape that is symmetrical to each other, thereby reducing the outer length of the transmission region. Additionally, according to this disclosure, the edge corners of the pixels can be formed at approximately 60°, thereby reducing the outer length of the transmission region. Therefore, according to this disclosure, the area with the black substrate (i.e., the non-light-emitting area) can be reduced, and the transmittance can be improved.

[0199] Furthermore, according to this disclosure, multiple sub-pixels are set together based on the intersection area where the first signal line and the second signal line intersect each other, thereby improving the clarity and readability of the image quality.

[0200] Furthermore, according to this disclosure, the first circuit region where at least one transistor is disposed and the second circuit region where a capacitor is disposed can be configured not to overlap with the signal line. Therefore, according to this disclosure, parasitic capacitance can be prevented from occurring between the transistor, the capacitor, and the signal line.

[0201] Furthermore, according to this disclosure, the first circuit region can be configured to be adjacent to the crossover region, thereby reducing or minimizing the length of the connection line used to connect the transistor to the signal line. Therefore, according to this disclosure, the voltage loss transmitted from the signal line due to resistance can be reduced.

[0202] Furthermore, according to this disclosure, the capacitor can be disposed between the first circuit region and the transmission region, and can be configured to have the maximum width area in the region excluding the first circuit region and the signal line. Therefore, according to this disclosure, the maximum capacitance of the capacitor can be guaranteed, thereby improving brightness.

[0203] Furthermore, according to this disclosure, the shape of the transmission region can be determined by the shape of the side of the capacitor oriented towards the transmission region. Therefore, according to this disclosure, design freedom of the transmission region can be obtained without sacrificing transmittance.

[0204] It will be apparent to those skilled in the art that this disclosure is not limited to the above embodiments and drawings, and various substitutions, modifications, and variations can be made to this disclosure without departing from its spirit and scope. Therefore, the scope of this disclosure is defined by the appended claims, and all variations or modifications derived from the meaning, scope, and equivalent concepts of the claims are intended to fall within the scope of this disclosure.

[0205] Cross-references to related applications

[0206] This application claims the benefit of Korean Patent Application No. 10-2020-0091760, filed on July 23, 2020, which is incorporated herein by reference as fully set forth herein.

Claims

1. A transparent display device, the transparent display device comprising: Multiple first signal lines, the multiple first signal lines extending in a first direction and configured to be spaced apart from each other; Multiple second signal lines, which extend in a second direction and are spaced apart from each other; A transmission region is provided between two adjacent first signal lines and two adjacent second signal lines. as well as The first pixel and the second pixel are set based on the intersection area where the first signal line and the second signal line intersect each other. The first pixel has a triangular shape, and the second pixel has a triangular shape symmetrical to the first pixel by interpolating one of the first signal line and the second signal line. Each of the first pixel and the second pixel includes a first sub-pixel that emits light of a first color, a second sub-pixel that emits light of a second color, a third sub-pixel that emits light of a third color, and a fourth sub-pixel that emits light of a fourth color.

2. The transparent display device according to claim 1, wherein, Each of the first pixel and the second pixel includes a first side parallel to the first signal line and a second side and a third side oriented toward the transmission region, and each of the second side and the third side forms a 60° angle with the first side.

3. The transparent display device according to claim 1, further comprising a first non-light-emitting area disposed along the first signal line, wherein, The first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel, which emit light of different corresponding colors, are disposed on one side of the first non-emitting area, and the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel, which emit light of different corresponding colors, are disposed on the other side of the first non-emitting area.

4. The transparent display device according to claim 3, wherein, The first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel of the first pixel are disposed on one side of the first non-light-emitting area, and the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel of the second pixel are disposed on the other side of the first non-light-emitting area.

5. The transparent display device according to claim 1, further comprising a second non-light-emitting region disposed along the second signal line, wherein, The first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel, which emit light of different corresponding colors, are disposed on one side of the second non-emitting area, and the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel, which emit light of different corresponding colors, are disposed on the other side of the second non-emitting area.

6. The transparent display device according to claim 5, wherein, The first sub-pixel and the second sub-pixel of the first pixel, as well as the third sub-pixel and the fourth sub-pixel of the second pixel, are disposed on one side of the second non-light-emitting area, and the third sub-pixel and the fourth sub-pixel of the first pixel, as well as the first sub-pixel and the second sub-pixel of the second pixel, are disposed on the other side of the second non-light-emitting area.

7. The transparent display device according to claim 5, further comprising a third non-light-emitting region disposed between sub-pixels on one side of the second non-light-emitting region and between sub-pixels disposed on the other side of the second non-light-emitting region, wherein, The third non-emitting region branches off from the second non-emitting region and extends toward the transmission region, and the third non-emitting region is inclined relative to the first signal line.

8. The transparent display device according to claim 7, wherein, The third non-light-emitting area forms a 30° angle with the first signal line.

9. The transparent display device according to claim 5, wherein, Each of the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel includes a light-emitting region composed of a first sub-light-emitting region and a second sub-light-emitting region.

10. The transparent display device according to claim 9, further comprising a fourth non-light-emitting region disposed between the first sub-light-emitting region and the second sub-light-emitting region, wherein, The fourth non-emitting region branches off from the second non-emitting region and extends toward the transmission region, and the fourth non-emitting region is inclined relative to the second signal line.

11. The transparent display device according to claim 10, wherein, The fourth non-light-emitting region forms a 30° angle with the second signal line.

12. The transparent display device according to claim 1, wherein, The first signal line includes a first gating line for supplying gating signals to the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel included in the first pixel, and a second gating line for supplying gating signals to the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel included in the second pixel.

13. The transparent display device according to claim 1, wherein, The second signal line includes at least one of a reference line, a first power line, a second power line, or a data line.

14. The transparent display device according to claim 1, further comprising: A first non-light-emitting area is provided along the first signal line; A second non-light-emitting area is provided along the second signal line; The third non-light-emitting region is disposed between sub-pixels disposed on one side of the second non-light-emitting region and between sub-pixels disposed on the other side of the second non-light-emitting region. as well as A first black substrate is disposed in the first non-luminescent area, the second non-luminescent area, and the third non-luminescent area.

15. The transparent display device according to claim 1, further comprising a second black substrate disposed between the first pixel and the transmissive region and between the second pixel and the transmissive region.

16. The transparent display device according to claim 15, wherein, Each of the first pixel and the second pixel includes a white sub-pixel, and the second black substrate is disposed between each of the other sub-pixels besides the white sub-pixel and the transmissive region.

17. The transparent display device according to claim 1, wherein, Each of the first pixel and the second pixel includes a first circuit region having at least one transistor and a second circuit region having at least one capacitor, and each of the first circuit region and the second circuit region does not overlap with each of the first signal line and the second signal line.

18. The transparent display device according to claim 17, wherein, The second circuit region is disposed between the first circuit region and the transmission region.

19. A transparent display device, the transparent display device comprising: Multiple first signal lines, the multiple first signal lines extending in a first direction and configured to be spaced apart from each other; Multiple second signal lines, which extend in a second direction and are spaced apart from each other; A transmission region is provided between two adjacent first signal lines and two adjacent second signal lines. as well as The first pixel and the second pixel are set based on the intersection area where the first signal line and the second signal line intersect each other, and are symmetrically arranged with respect to each other by interpolating one of the first signal line and the second signal line. Each of the first pixel and the second pixel comprises four sub-pixels, and The first pixel has a triangular shape, and the second pixel has a triangular shape symmetrical to the first pixel by interpolating the second signal line.

20. The transparent display device according to claim 19, wherein, The first pixel and the second pixel correspond to a transmission region.

21. The transparent display device according to claim 19, wherein, Each of the first pixel and the second pixel includes a first sub-pixel that emits light of a first color, a second sub-pixel that emits light of a second color, a third sub-pixel that emits light of a third color, and a fourth sub-pixel that emits light of a fourth color.

22. The transparent display device according to claim 19, wherein, In sub-pixels that emit light of the same color, the first spacing distance in the first direction is uniform.

23. The transparent display device according to claim 19, wherein, Among sub-pixels that emit light of the same color, the difference between the first spacing distance in the first direction and the second spacing distance in the second direction is less than 10% of the first spacing distance.

24. The transparent display device according to claim 19, wherein, The first pixel and the second pixel are different from each other in at least one aspect of the shape or luminous region of their respective sub-pixels that emit light of the same color.

25. The transparent display device according to claim 19, wherein, The second signal line includes a first gating line for supplying gating signals to a plurality of sub-pixels included in the first pixel and a second gating line for supplying gating signals to a plurality of sub-pixels included in the second pixel.

Images