Display device

Abstract

The display device includes a substrate having multiple pixels, each pixel having multiple sub-pixels. A first non-light-emitting region is disposed on the substrate and located within each sub-pixel, and a second non-light-emitting region is connected to the first non-light-emitting region and located between adjacent sub-pixels among the multiple sub-pixels. A light-emitting region is disposed adjacent to both the first and second non-light-emitting regions. A repair portion is disposed in the first non-light-emitting region to support electrical disconnection in the event of a short circuit. This configuration allows for the expansion of the light-emitting region and improvement of luminous efficiency while maintaining the repair function within the sub-pixel structure.

Description

Technical Field

[0001] This disclosure relates to apparatus, and in particular, for example, but not limited to, a display apparatus for displaying images. Background Technology

[0002] Organic light-emitting displays (OLEDs) are attracting attention as the next generation of flat panel displays because they have high response speed and low power consumption, and unlike liquid crystal displays, they do not require a separate light source and are self-emissive, thus having no problem with viewing angle.

[0003] The display device includes multiple sub-pixels, each sub-pixel including a light-emitting element layer disposed in a light-emitting area. The display device displays an image by emitting light from the light-emitting element layer.

[0004] The descriptions provided in the background section should not be construed as prior art simply because they are mentioned in or associated with that section. The background section may include information describing one or more aspects of the subject matter art, and the descriptions in that section do not limit this disclosure. Summary of the Invention

[0005] In traditional display devices, a repair line is typically placed between the light-emitting area and the circuit area to prevent the entire light-emitting area of ​​each sub-pixel from becoming ineffective due to short circuits between lines or electrodes. However, when a repair line is placed within the light-emitting area, it reduces the available space for light emission, thereby decreasing luminous efficiency. As a result, the presence of the repair line limits the expansion of the light-emitting area and hinders the improvement of luminous efficiency.

[0006] The various embodiments of the display device disclosed herein improve luminous efficiency and repairability by structurally repositioning the repair unit to a non-light-emitting area located within each sub-pixel but outside the effective light-emitting area. Compared to conventional configurations, this arrangement allows for an increase in the area dedicated to light emission. Furthermore, the reflective surface is angled both inside and outside the non-light-emitting area to redirect waveguide light toward the substrate, enabling the recovery of light that would otherwise be lost.

[0007] The repair area is further protected by being covered with a color filter (such as a blue filter in the white subpixel), which acts as a laser barrier during repair and reduces the risk of damage to the reflective electrodes. The width design of the repair block balances effective laser aiming with minimal interference to light output. Subpixels are formed with multiple luminescent areas connected by narrow bridges that can be selectively cut if defects occur. This structure allows for partial subpixel operation after localized damage and can be supplemented by solder lines for rewiring electrical paths, thus supporting improved repair flexibility and luminescent performance.

[0008] For example, one aspect of this disclosure relates to providing a display device in which the size (or area) of the light-emitting region can be enlarged.

[0009] One aspect of this disclosure relates to providing a display device capable of improving light efficiency.

[0010] One aspect of this disclosure relates to providing a display device in which the light extraction efficiency of light emitted from a light-emitting element layer can be maximized or improved.

[0011] One aspect of this disclosure relates to providing a display device in which total power consumption can be reduced by extracting light from non-light-emitting areas.

[0012] The problems to be solved by the embodiments of this disclosure are not limited to those described above. Through the following description, those skilled in the art will understand other problems not mentioned above.

[0013] A display device includes: a substrate including a plurality of pixels having a plurality of sub-pixels; a first non-light-emitting region disposed on the substrate and located inside each of the plurality of sub-pixels; a second non-light-emitting region connected to the first non-light-emitting region and located between the plurality of sub-pixels; a light-emitting region adjacent to each of the first non-light-emitting region and the second non-light-emitting region; and a repair portion disposed in the first non-light-emitting region.

[0014] The technical benefits of this disclosure are not limited to those described above, and those skilled in the art will clearly understand from the following description other benefits not mentioned above.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative, and are intended to provide further explanation of the claimed inventive concept. Attached Figure Description

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

[0017] Figure 1 This is a schematic plan view of a display device according to one embodiment of the present disclosure.

[0018] Figure 2 yes Figure 1 A schematic planar view of a single pixel is shown.

[0019] Figure 3 It is a schematic representation Figure 2 Plan view of the repair section and branches.

[0020] Figure 4 This is a schematic plan view showing a sub-pixel of a display device according to one embodiment of the present disclosure and a sub-pixel of a display device according to a comparative example.

[0021] Figure 5 It is along Figure 3 The schematic cross-sectional view taken by line II′ is shown.

[0022] Figure 6 It is along Figure 3 The diagram shows a schematic cross-section taken from line Ⅱ-Ⅱ′.

[0023] Figure 7 It is along Figure 3 The diagram shows a schematic cross-section taken from line Ⅲ-Ⅲ′.

[0024] Figure 8 It is along Figure 3 The diagram shows a schematic cross-section taken from line IV-IV′.

[0025] Figure 9 It is along Figure 3 The diagram shows a schematic cross-section taken by line V-V′.

[0026] Figure 10 This is a schematic plan view showing two pixels of a display device according to one embodiment of the present disclosure. Detailed Implementation

[0027] Reference will now be made in detail to embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Where possible, the same reference numerals will be used throughout the drawings to refer to the same or similar parts. The advantages and features of the present disclosure, as well as its implementation methods, will be clarified by referring to the following embodiments described in the accompanying drawings.

[0028] However, this disclosure may be implemented 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 communicate the scope of this disclosure to those skilled in the art.

[0029] The shapes, dimensions, sizes (e.g., length, width, height, thickness, radius, diameter, area, etc.), ratios, angles, number of elements, etc. shown in the accompanying drawings used to describe embodiments of the present disclosure are merely examples, and the present disclosure is not limited thereto.

[0030] For ease of description, the dimensions and thicknesses of each component shown in the accompanying drawings are illustrated, and this disclosure is not limited to the dimensions and thicknesses of the components shown. However, it should be noted that the relative dimensions, positions, and thicknesses of the components shown in the various accompanying drawings submitted herein are part of this disclosure.

[0031] The same reference numerals always refer to the same elements. In the following description, detailed descriptions will be omitted where it is determined that such detailed descriptions of relevant known functions or configurations would unnecessarily obscure the essential points of this disclosure.

[0032] When using the terms “comprising,” “having,” and “including” as described in this disclosure, additional parts may be added unless “only” is used. Unless otherwise stated, singular terms may include plural terms.

[0033] When interpreting an element, although not explicitly described, the element is interpreted as including a range of error. When describing positional relationships, for example, when the positional relationship between two parts is described as "above," "over," "below," and "next to," one or more other parts may be positioned between the two parts unless "exactly" or "directly" is used.

[0034] When describing temporal relationships, such as when time sequence is described as “after,” “following,” “next,” and “before,” discontinuous cases may be included unless “exactly” or “directly” is used.

[0035] As used herein, the term "connection" is intended to have the broadest possible meaning. Specifically, the phrase "A connected to B" encompasses both direct connections (where no intermediate parts or elements exist) and indirect connections (where one or more intermediate parts or elements exist between A and B). In other words, "A connected to B" includes both direct physical or electrical connections and indirect connections via one or more intermediate parts. Unless otherwise expressly stated, these terms do not require direct physical or electrical contact. The terms "connection" and "contact" should be interpreted in the same manner.

[0036] It should be understood that although the terms “first,” “second,” etc., may be used in this document to describe various elements, these elements should not be limited by these terms.

[0037] 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.

[0038] The “X-axis direction,” “Y-axis direction,” and “Z-axis direction” should not be interpreted solely by their geometric relationship of being perpendicular to each other, and can have a wider range of orientations within the scope of the elements of this disclosure that can function.

[0039] The term “at least one” should be understood to include any and all combinations of one or more of the associated listed items.

[0040] For example, "at least one of the first, second and third items" means a combination of two or more items from the first, second and third items, as well as all items proposed from the first, second or third items.

[0041] Any implementation described as an "example" in this article is not necessarily to be interpreted as preferred or superior to other implementations.

[0042] Furthermore, when referring to any size, relative size, etc., the numerical values ​​or corresponding information of a component or feature (e.g., level, range, etc.) should be considered to include tolerances or error ranges that may be caused by various factors (e.g., process factors, internal or external influences, noise, etc.), even if no relevant description is specified. Additionally, the term "may" fully encompasses all the meanings of the term "able to".

[0043] The terms “first element,” “second element,” and / or “third element” should be understood as one of the first, second, and third elements, or any or all combinations of the first, second, and third elements. For example, A, B, and / or C can refer to only A; only B; only C; any or some combinations of A, B, and C; or all of A, B, and C.

[0044] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the example embodiments pertain. It will be further understood that terms (such as those defined in common dictionaries) should be interpreted as having a meaning consistent, for example, with their meaning in the context of the relevant field, and should not be interpreted in an idealized or overly formal sense unless explicitly defined herein. For example, the terms “part” or “unit” can be applied to, for example, a single circuit or structure, an integrated circuit, a computational block of a circuit arrangement, or any structure configured to perform the functions described herein as would be understood by one of ordinary skill in the art.

[0045] As will be fully understood by those skilled in the art, the features of the various embodiments of this disclosure may be connected or combined with each other in part or in whole, and may interoperate with each other in various ways and be technology-driven.

[0046] The embodiments disclosed herein can be performed independently of each other, or they can be performed together in an interdependent relationship.

[0047] In the following, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0048] Figure 1 This is a schematic plan view of a display device according to one embodiment of the present disclosure. Figure 2 It is a pixel (e.g.) Figure 1 A schematic plan view (shown) Figure 3 It is shown schematically. Figure 2 Plan view of the repair section and branches. Figure 4 This is a schematic plan view showing a sub-pixel of a display device according to one embodiment of the present disclosure and a sub-pixel of a display device according to a comparative example.

[0049] The following is based on Figure 1 The first direction (Y-axis direction) represents the vertical direction, based on Figure 1 The second direction (X-axis direction) represents the horizontal direction, and the third direction (Z-axis direction) represents the thickness direction of the display device 100. The first direction (Y-axis direction) can be the same as the data line DL (… Figure 2 The direction shown is parallel to the first direction. The second direction (X-axis direction) can be parallel to the gating line GL. Figure 2 (As shown) in a parallel direction.

[0050] refer to Figure 1 According to one embodiment of the present disclosure, a display device 100 may include a display panel having a gating driver GD. The display panel may include a substrate 110 bonded to each other and an opposing substrate 200 (e.g., ...). Figure 5 (As shown).

[0051] According to one example, substrate 110 may include a display area DA in which multiple pixels P having multiple sub-pixels SP are disposed, and a non-display area NDA surrounding the display area DA. Substrate 110 may also include a first non-light-emitting area NEA1, a second non-light-emitting area NEA2, a light-emitting area EA, and a repair structure RPP (also referred to as "repair portion RPP"). The first non-light-emitting area NEA1, the second non-light-emitting area NEA2, the light-emitting area EA, and the repair portion RPP may be disposed in the display area DA of substrate 110.

[0052] The first non-luminescent region NEA1 and the second non-luminescent region NEA2 can be non-luminescent regions. Conversely, the luminescent region EA can be a luminescent region.

[0053] According to one example, a first non-light-emitting region NEA1 is disposed on the substrate 110 and can be disposed inside each of the plurality of sub-pixels SP. For example, as Figure 2 As shown, the first non-light-emitting region NEA1 can be set inside (or between) the light-emitting regions EA of each of the multiple sub-pixels SP.

[0054] According to one example, each light-emitting region EA of a plurality of sub-pixels SP may include a first light-emitting region EA1, a second light-emitting region EA2, and a third light-emitting region EA3. The first light-emitting region EA1 can be connected to the second light-emitting region EA2 via a first connecting portion CP1. The second light-emitting region EA2 can be connected to the third light-emitting region EA3 via a second connecting portion CP2. Each of the first connecting portion CP1 and the second connecting portion CP2 can be a light-emitting region EA. Figure 2 As shown, according to an example, the first non-luminous region NEA1 can be set between the first luminous region EA1 and the second luminous region EA2, and between the second luminous region EA2 and the third luminous region EA3.

[0055] According to one example, a second non-emissive region NEA2 can be connected to a first non-emissive region NEA1. The second non-emissive region NEA2 can be a region between multiple sub-pixels SP. Therefore, the first non-emissive region NEA1 and the second non-emissive region NEA2 can be configured to surround an emissive region EA. Thus, the emissive region EA can be configured adjacent to each of the first non-emissive region NEA1 and the second non-emissive region NEA2.

[0056] The repair unit RPP is designed to prevent or reduce the darkening of the entire light-emitting area EA of each sub-pixel SP due to short circuits between lines (or electrodes) included in the substrate 110.

[0057] For example, the repair unit RPP can receive laser shocks from the laser device LS (such as... Figure 6 (As shown) is sent to the line (e.g., data branch BRL1, such as) Figure 6 As shown), thereby enabling the repair of the lines on the RPP (e.g., data branch BRL1, such as...) Figure 6 As shown, the display device 100 according to one embodiment of the present disclosure can prevent or reduce the darkening (or inability to be driven or to emit light) of the entire light-emitting area EA of each sub-pixel SP due to short circuits between lines (e.g., data lines and scan lines) (or electrodes).

[0058] In a display device 100 according to one embodiment of the present disclosure, a repair part RPP may be provided in a first non-light-emitting area NEA1.

[0059] In typical display devices, no repair lines (or repair sections) are provided inside each of the multiple sub-pixels (or inside the light-emitting area). If repair lines (or repair sections) are provided inside each of the multiple sub-pixels (or inside the light-emitting area), the size (or area) of the light-emitting area becomes smaller, thereby reducing light efficiency. Therefore, in typical display devices, repair lines (or repair sections) are provided outside the light-emitting area.

[0060] Conversely, a display device 100 according to one embodiment of the present disclosure may have a repair portion RPP disposed in a first non-light-emitting region NEA1 located inside each of a plurality of sub-pixels SP.

[0061] For example, such as Figure 4 As shown, in the case of a general display device CDP, a repair portion RPP including a sub-pixel SP is located between the light-emitting region EA and the circuit region CA. Therefore, in the case of a general display device CDP, a light-emitting region EA having a first length W1 (or a first width W1) and a repair portion RPP having a second length W2 (or a second width W2) can be provided on the upper side of the circuit region CA.

[0062] Conversely, according to one embodiment of the present disclosure, the display device 100 may provide a repair portion RPP in a first non-light-emitting region NEA1 within each of a plurality of sub-pixels SP, such that the light-emitting region EA may have a third length W3 (or a third width W3). The third length W3 (or third width W3) may be the length (or width) of the sum of the first length W1 (or first width W1) and the second length W2 (or second width W2).

[0063] Therefore, compared with the display device CDP according to the comparative example, the display device 100 according to one embodiment of the present disclosure may have an enlarged size (or area) of the light-emitting region EA, thereby further improving the light efficiency.

[0064] Meanwhile, in the case of a general display device, if a non-light-emitting area is set inside each of the multiple sub-pixels, the light efficiency may be reduced.

[0065] However, since the display device 100 according to one embodiment of the present disclosure has a first reflective portion 121 provided in the first non-light-emitting area NEA1 (in Figure 6 (As shown in the figure), light extraction can be achieved through the first reflective part 121, so that the light efficiency is not reduced.

[0066] As a result, even when the first non-emitting region NEA1 is disposed inside each of the plurality of sub-pixels SP, the light efficiency of the display device 100 according to an embodiment of the present disclosure can be maintained without reduction due to the first reflective portion 121 in the first non-emitting region NEA1, and since the size (or area) of the emitting region EA can be increased by providing the repair portion RPP in the first non-emitting region NEA1, the light efficiency can be improved.

[0067] Reference Figure 1 According to one embodiment of the present disclosure, the display device 100 may include a source driver integrated circuit (hereinafter referred to as "IC") 130, a flexible film 140, a circuit board 150, and a timing control unit 160.

[0068] The substrate 110 may include thin-film transistors, and the substrate 110 may be a transistor array substrate, a lower substrate, a base substrate, or a first substrate. The substrate 110 may be a transparent glass substrate or a transparent plastic substrate.

[0069] The opposing substrate 200 can be bonded to the substrate 110 via an adhesive member. For example, the opposing substrate 200 can have a smaller size than the substrate 110 and can be bonded to the remainder of the substrate 110 except for the pad area. The opposing substrate 200 can be an upper substrate, a second substrate, or a package substrate.

[0070] The gating driver GD provides a gating signal to the gating line according to the gating control signal input from the timing control unit 160. When the source driver IC 130 is manufactured as a driver chip, the source driver IC 130 can be packaged in a flexible film 140 using the chip-on-film (COF) method or the chip-on-plastic (COP) method.

[0071] Pads, such as data pads, can be formed in the non-display area of ​​the display panel. Lines connecting the pads to the source driver IC 130 and lines connecting the pads to the circuit board 150 can be formed in the flexible film 140. The flexible film 140 can be attached to the pads using an anisotropic conductive film, thereby allowing the pads to be connected to the lines of the flexible film 140.

[0072] refer to Figure 1 According to one example, substrate 110 may include a display area DA and a non-display area NDA.

[0073] The display area DA is the area where the image is displayed. The display area DA can be a pixel array area, an effective area, a pixel array unit, a display unit, or a screen. For example, the display area DA can be located in the central part of the display panel.

[0074] According to an example, a display area DA may include gating lines, data lines, pixel power lines, and multiple pixels P. Each of the multiple pixels P may include multiple sub-pixels SP, which may be defined by the gating lines and data lines. Each of the multiple sub-pixels SP may be defined as the smallest unit area that emits actual light.

[0075] According to one example, among multiple subpixels SP, at least four adjacent subpixels SP configured to emit different colors constitute a unit pixel P. A unit pixel may include, but is not limited to, red subpixels, white subpixels, blue subpixels, and green subpixels.

[0076] Each of the multiple sub-pixels SP may include a thin-film transistor and an organic light-emitting element connected to the thin-film transistor. The sub-pixel may include an organic light-emitting layer (or light-emitting layer) interposed between a first electrode and a second electrode.

[0077] The organic light-emitting layer in each of the multiple sub-pixels SP can emit different colors of light individually or emit white light collectively. For example, when the organic light-emitting layers of each sub-pixel in the multiple sub-pixels SP collectively emit white light, each of the red, green, and blue sub-pixels can include a color filter CF (or wavelength conversion component CF) that converts white light into different colors. In this case, the white sub-pixel, according to one example, may not have a color filter. The color filter CF, according to one example, may include a red color filter CF1 (e.g., ...). Figure 2 As shown), blue filter CF2 (as shown) Figure 2 (as shown) and green filters (such as) Figure 2 (As shown).

[0078] In a display device 100 according to one embodiment of the present disclosure, the area provided with a red color filter CF1 may be a red sub-pixel SP1, the area provided with a blue color filter CF2 may be a blue sub-pixel SP3, the area provided with a green color filter may be a green sub-pixel SP4, and the area without a color filter may be a white sub-pixel SP2. In this disclosure, the red sub-pixel SP1 may be represented as a first sub-pixel configured to emit red light, the blue sub-pixel SP3 may be represented as a third sub-pixel configured to emit blue light, the green sub-pixel SP4 may be represented as a fourth sub-pixel configured to emit green light, and the white sub-pixel SP2 may be represented as a second sub-pixel configured to emit white light.

[0079] When a gating signal is input from the gating line using a thin-film transistor, each sub-pixel SP supplies a predetermined current to the organic light-emitting element according to the data voltage of the data line. Therefore, the light-emitting layer of each sub-pixel can emit light with a predetermined brightness according to the predetermined current.

[0080] The display area DA can include a light-emitting area EA and a non-light-emitting area NEA. The light-emitting area EA is the area where the organic light-emitting element layer E emits light. The non-light-emitting area NEA is the area that does not transmit most of the light incident from the outside.

[0081] For example, the non-light-emitting region NEA can be a region that does not include the light-emitting region EA. In one example, the non-light-emitting region NEA may include the circuit region CA (such as...). Figure 2 (As shown). The circuit region CA may include a thin-film transistor 112 for driving each of the plurality of sub-pixels SP (or the organic light-emitting element layer E of each of the plurality of sub-pixels SP).

[0082] In a display device 100 according to one embodiment of the present disclosure, the non-light-emitting region NEA may include a first non-light-emitting region NEA1 and a second non-light-emitting region NEA2.

[0083] As an example, the first non-luminescent region NEA1 can be set inside each of the multiple sub-pixels SP. For example, as... Figure 2 As shown, the interior of each sub-pixel SP in a plurality of sub-pixels SP can be represented as the interior of the light-emitting region EA included in a sub-pixel SP. Organic light-emitting element layer E ( Figure 5 (As shown) can be omitted from the first non-luminous area NEA1.

[0084] According to one example, the second non-luminescent region NEA2 can be set outside each of the multiple sub-pixels SP. For example, as Figure 2 As shown, the exterior of each of the plurality of sub-pixels SP can be represented among the plurality of sub-pixels SP. Therefore, the second non-emitting region NEA2 can be distinguished from the first non-emitting region NEA1 located between the emitting regions EA (e.g., the first emitting region EA1 and the second emitting region EA2) included in a sub-pixel SP. The exterior of each of the plurality of sub-pixels SP (e.g., the second non-emitting region NEA2) may include a circuit region CA adjacent to the emitting region EA. In addition, the exterior of each of the plurality of sub-pixels SP may include the pixel electrode 114 (in the first sub-pixel SP1 and the second sub-pixel SP2) of the plurality of sub-pixels SP that emit light of different colors (e.g., the pixel electrode 114 of each of the first sub-pixels SP1 and the second sub-pixel SP2). Figure 5 The area between (shown in the image) is shown in the image.

[0085] Furthermore, within the non-light-emitting region NEA, multiple pixels P and multiple lines for driving each of the multiple pixels P can be configured. According to one example, the multiple lines may include multiple first signal lines and multiple second signal lines.

[0086] Multiple first signal lines may extend in a second direction (X-axis direction). Each of the multiple first signal lines may include at least one gating line GL (or scan line).

[0087] Multiple second signal lines may extend in a first direction (Y-axis direction). These multiple second signal lines may intersect with multiple first signal lines. Each of the multiple second signal lines may include a pixel power line EVDD, multiple data lines DL, and a reference line RL. The multiple data lines DL may include a first data line for driving a first sub-pixel SP1, a second data line for driving a second sub-pixel SP2, a third data line for driving a third sub-pixel SP3, and a fourth data line for driving a fourth sub-pixel SP4.

[0088] Return to reference Figure 1 The non-display area NDA is the region on which no image is displayed, and it can be a peripheral circuit area, a signal supply area, an inactive area, or a border area. The non-display area NDA can be configured to be located near the display area DA. That is, the non-display area NDA can be set to surround the display area DA.

[0089] A display device 100 according to one embodiment of the present disclosure may include a pad region PA disposed in a non-display area NDA. The pad region PA may be used to drive a plurality of pixels P. For example, the pad region PA may provide power and / or signals to a plurality of pixels P disposed in the display area DA to output an image.

[0090] As an example, the pad area PA can be set based on... Figure 1 In the non-display area NDA (or the first non-display area NDA1) above the display area DA.

[0091] The gating driver GD provides gating signals to the gating lines based on the gating control signal input from the timing controller 181. In such cases... Figure 1 In the panel shown, the gating driver GIP method can be formed on one side of the display area DA of the display panel, or on the non-display area NDA outside the two sides of the display area DA.

[0092] Multiple strobe drivers GD can also be set on the left side (i.e., the second non-display area) and the right side (i.e., the third non-display area) of the display area DA, respectively.

[0093] According to one example, multiple gating drivers GD can be connected to multiple pixels P and multiple first signal lines for supplying signals to the multiple pixels P. The multiple first signal lines may include at least one signal line for providing signals for driving the pixels P.

[0094] Multiple second signal lines may extend in a first direction (Y-axis direction). These multiple second signal lines may include a pixel power line EVDD and at least one data line DL to provide data voltage to pixel P. Each of the multiple second signal lines may be connected to at least one of multiple pads, a pixel power shorting bar, and a common power shorting bar. The pixel power shorting bar and the common power shorting bar may be positioned in a fourth non-display area facing the pad area PA, based on the display area DA.

[0095] Pixel P is configured to overlap with at least one of the first signal line or the second signal line, and emits predetermined light to display an image. The emitting region EA may correspond to the region emitting light in pixel P.

[0096] The non-emitting area (NEA) can refer to an area within the display area (DA) that does not emit light, and because the NEA does not emit light, it can be referred to as a dead zone. According to one example, a dead zone can be an area with a black background and / or a dam, but is not limited to this, and can refer to an area that does not emit light.

[0097] According to one embodiment of the present disclosure, the display device 100 allows the size (or area) of the light-emitting region EA to be enlarged (or expanded) by placing the repair unit RPP in the first non-light-emitting region NEA1, which is a dead zone, thereby improving the light efficiency and performing a repair process by means of the repair unit RPP.

[0098] In a display device 100 according to one embodiment of the present disclosure, the repair portion RPP may be disposed in the first non-light-emitting region NEA1. For example, as Figure 3 As shown, the light-emitting region EA included in a sub-pixel SP may include a first light-emitting region EA1, a second light-emitting region EA2, and a third light-emitting region EA3. The first light-emitting region EA1, the second light-emitting region EA2, and the third light-emitting region EA3 are connected by a first connecting part CP1 and a second connecting part CP2 in a first direction (Y-axis direction) (or based on... Figure 3 The organic light-emitting element layer E is sequentially connected in the downward direction. Since the organic light-emitting element layer E is also disposed in each of the first connecting portion CP1 and the second connecting portion CP2, it is possible to emit light from each of the first connecting portion CP1 and the second connecting portion CP2. Therefore, the light-emitting region EA included in a sub-pixel SP can be in the first direction (Y-axis direction) (or based on the downward direction). Figure 3 The first light-emitting area EA1, the first connecting part CP1, the second light-emitting area EA2, the second connecting part CP2, and the third light-emitting area EA3 are connected sequentially in the downward direction.

[0099] Meanwhile, the display device 100 according to one embodiment of the present disclosure can prevent or reduce the darkening of the entire light-emitting area EA of each sub-pixel SP due to foreign matter generated during the manufacturing process. For example, if one or two of the first light-emitting area EA1, the second light-emitting area EA2, and the third light-emitting area EA3 are attached with foreign matter, the first connecting portion CP1 (or the second connecting portion CP2) is cut by a laser device, so that the light-emitting area with foreign matter attached (e.g., the first light-emitting area EA1) is darkened, and the remaining light-emitting areas (e.g., the second light-emitting area EA2 and the third light-emitting area EA3) can be driven normally (or slightly darkened).

[0100] Therefore, according to one embodiment of the present disclosure, the display device 100 can be configured such that the width CW of the first connecting portion CP1 (in) Figure 2 (As shown in the diagram) is narrower than the width EW of the first light-emitting region EA1. If the width CW of the first connecting portion CP1 is equal to or greater than the width EW of the first light-emitting region EA1, then during the laser cutting process of the first connecting portion CP1, the lines connected to the organic light-emitting element layer E or the circuit region CA may be damaged. Therefore, in a display device 100 according to an embodiment of the present disclosure, the width CW of the first connecting portion CP1 (as shown in the diagram) is narrower than the width EW of the first light-emitting region EA1. Figure 2 (As shown in the diagram) The width of the second connection CP2 is set to be narrower than the width EW of the first light-emitting region EA1, so that damage to the lines connected to the organic light-emitting element layer E or the circuit region CA can be prevented or at least reduced during the cutting process of the first connection CP1. For the same reason as above, the width of the second connection CP2 can be set to be the same as the width of the first connection CP1.

[0101] Reference Figure 3 According to one example, a repair section RPP can be disposed in a first non-light-emitting region NEA1 located between a second light-emitting region EA2 and a third light-emitting region EA3. The repair section RPP is used to prevent or reduce the darkening (or inoperability or failure to emit light) of the entire light-emitting region EA due to short circuits between lines (or electrodes). Therefore, the repair section RPP can be disposed near the circuit region CA to cut the lines connected to the circuit region CA (or the thin-film transistor 112 of the circuit region CA). Thus, the repair section RPP can be disposed in the first non-light-emitting region NEA1 located near the circuit region CA. For example, as... Figure 3 As shown, the repair unit RPP can also be disposed in the first non-light-emitting region NEA1 disposed between the second light-emitting region EA2 and the third light-emitting region EA3. However, this disclosure is not limited thereto, and according to the circuit design, the repair unit RPP can be disposed in the first non-light-emitting region NEA1 disposed between the first light-emitting region EA1 and the second light-emitting region EA2.

[0102] In a display device 100 according to one embodiment of the present disclosure, the substrate 110 may further include a data branch BRL1 and a reference branch BRL2.

[0103] The data branch BRL1 can be connected to each sub-pixel in multiple sub-pixels SP. For example, as... Figure 3 As shown, the data branch BRL1 in the first sub-pixel SP can be electrically connected to the circuit region CA (or thin-film transistor 112) and the data line DL (or the first data line DL1) of the first sub-pixel SP. Therefore, the data branch BRL1 can send the data signal (or data voltage) applied from the data line DL to the circuit region CA (or thin-film transistor 112).

[0104] Reference branch BRL2 is spaced apart from data branch BRL1 and can be connected to each sub-pixel in multiple sub-pixels SP. For example, as Figure 3 As shown, the reference branch BRL2 in the first sub-pixel SP can be electrically connected to the circuit region CA (or thin-film transistor 112) and the reference line RL of the first sub-pixel SP. Therefore, the reference branch BRL2 can sense changes in the characteristics of the thin-film transistor 112 disposed in the circuit region CA during the sensing drive mode of pixel P and transmit them to the reference line RL.

[0105] Meanwhile, in a display device 100 according to one embodiment of the present disclosure, the repair unit RPP may include a first repair unit RPP1 and a second repair unit RPP2.

[0106] According to one example, the first repair section RPP1 may overlap with a portion of the data branch line BRL1. The first repair section RPP1 is used to cut the data branch line BRL1 when a short circuit occurs in the data line DL. For example, the first repair section RPP1 can be activated by laser shock LS received from a laser device. Figure 6 (As shown) Send to data branch BRL1 to cut data branch BRL1.

[0107] According to one embodiment of this disclosure, after the data branch line BRL1 is cut by the first repair part RPP1, the display device 100 connects the data branch line WDL (such as...) via the soldering line WDL (e.g....) Figure 10 (as shown) (or welding process) will short-circuit the pixel electrode 114 in the sub-pixel SP to another sub-pixel SP (e.g., relative to) Figure 3 In this case, the circuit region CA in the sub-pixel SP adjacent to the upper side is connected, thereby enabling the light-emitting region EA of the short-circuited sub-pixel SP to be driven together with the light-emitting region EA of the other sub-pixel SP. This will be referred to later. Figure 10 Describe it.

[0108] According to one example, the second repair section RPP2 can partially overlap with the reference branch BRL2. The second repair section RPP2 is used to cut the reference branch BRL2 when a short circuit occurs in the reference line RL. For example, the second repair section RPP2 can also cut the reference branch BRL2 by sending a laser shock LS received from the laser device to the reference branch BRL2.

[0109] According to one embodiment of this disclosure, after the reference branch line BRL2 is cut by the second repair section RPP2, the display device 100 connects to the solder line WDL (such as...). Figure 10 (as shown) (or welding process) will short-circuit the pixel electrode 114 in the sub-pixel SP to another sub-pixel SP (e.g., relative to) Figure 3 In this case, the circuit region CA in the sub-pixel SP adjacent to the upper side is connected, thereby enabling the light-emitting region EA of the short-circuited sub-pixel SP to be driven together with the light-emitting region EA of the other sub-pixel SP. This will be referred to later. Figure 10 Describe it.

[0110] Therefore, a display device 100 according to one embodiment of the present disclosure can prevent or reduce the dimming of the entire light-emitting area EA of each sub-pixel SP due to a short circuit in the data line DL or the reference line RL.

[0111] like Figure 3 As shown, the first repair portion RPP1 and the second repair portion RPP2 can also be configured as islands. Since each of the first repair portion RPP1 and the second repair portion RPP2 receives laser shock from the laser device, if each of the first repair portion RPP1 and the second repair portion RPP2 is connected to different lines or electrodes, the laser shock can be transmitted to different lines or electrodes and cause damage. Therefore, the display device 100 according to one embodiment of the present disclosure can have a structural feature in which each of the first repair portion RPP1 and the second repair portion RPP2 is configured as an island.

[0112] At the same time, refer to Figure 3 Each of the data branch BRL1 and the reference branch BRL2 can partially overlap with the light-emitting region EA. Therefore, each of the data branch BRL1 and the reference branch BRL2 can be formed of a transparent conductive material (or a transparent line). In the bottom-emitting method, if the data branch BRL1 and the reference branch BRL2 are set as opaque lines, they block light emitted from the organic light-emitting layer 116 and towards the substrate 110, thereby reducing light efficiency. Therefore, in the display device 100 according to one embodiment of this disclosure, since each of the data branch BRL1 and the reference branch BRL2 is set as a transparent conductive material (or a transparent line), a repair structure can be provided while preventing a reduction in light efficiency.

[0113] The following is for reference Figures 5 to 8 The structure of each of the multiple sub-pixels SP is described in detail.

[0114] Figure 5 It is along Figure 3 The schematic cross-sectional view taken by line II′ is shown below. Figure 6 It is along Figure 3 The diagram shows a schematic cross-section taken from line II-II′. Figure 7 It is along Figure 3 The schematic cross-sectional view shown is taken from line Ⅲ-Ⅲ′. Figure 8 It is along Figure 3 The diagram shows a schematic cross-section taken from line IV-IV′.

[0115] Reference Figure 5 According to one embodiment of the present disclosure, the display device 100 may include a buffer layer BL, a plurality of inorganic films 111, a thin-film transistor 112, and a color filter CF (such as...). Figure 8 As shown in the diagram, the structure includes a planarization layer 113, a pixel electrode 114, a dam 115, an organic light-emitting layer 116, a reflective electrode 117, and an encapsulation layer 118.

[0116] Each sub-pixel SP according to one embodiment may include a plurality of inorganic films 111 disposed on the upper surface of the buffer layer BL, the plurality of inorganic films 111 including a gate insulating layer 111a, an interlayer insulating layer 111b and a passivation layer 111c.

[0117] Furthermore, each subpixel SP may include a color filter CF disposed on multiple inorganic films 111 (in Figure 8 As shown in the figure, a planarization layer 113 is disposed on the color filter CF. The planarization layer 113 may include a first planarization layer 1131 and a second planarization layer 1132. The second planarization layer 1132 may be disposed on the first planarization layer 1131. The pixel electrode 114 may be disposed on the second planarization layer 1132.

[0118] Each sub-pixel SP may also include a dam 115 covering one edge of the pixel electrode 114, an organic light-emitting layer 116 on the pixel electrode 114 and the dam 115, and a reflective electrode 117 on the organic light-emitting layer 116. An encapsulation layer 118 may be disposed on the reflective electrode 117.

[0119] Thin-film transistors 112 used to drive sub-pixels SP can be disposed on multiple inorganic films 111. The multiple inorganic films 111 can also be represented by a layer of circuit elements.

[0120] The buffer layer BL may be included together with the gate insulating layer 111a, the interlayer insulating layer 111b, and the passivation layer 111c in a plurality of inorganic films 111. The pixel electrode 114, the organic light-emitting layer 116, and the reflective electrode 117 may be included in the light-emitting element layer E.

[0121] A buffer layer BL can be formed between the substrate 110 and the gate insulating layer 111a to protect the thin-film transistor 112. The buffer layer BL can be disposed on the entire surface (or front surface) of the substrate 110. The buffer layer BL can be used to prevent material contained in the substrate 110 from diffusing into the transistor layer during the high-temperature process of manufacturing the thin-film transistor 112.

[0122] According to one example, a thin-film transistor 112 (or driving transistor) may include an active layer 112a, a gate 112b, a source 112c, and a drain 112d.

[0123] The active layer 112a may include a channel region, a drain region, and a source region, which are formed in the thin-film transistor region of the circuit region CA of the sub-pixel SP. The drain region and the source region may be spaced apart from each other, and the channel region is interposed therebetween.

[0124] The active layer 112a can be formed from a semiconductor material based on any one of amorphous silicon, polycrystalline silicon, oxide and organic materials.

[0125] The gate insulating layer 111a may be formed on the channel region of the active layer 112a. As an example, the gate insulating layer 111a may be formed as an island only on the channel region of the active layer 112a, or it may be formed on the entire front surface of the substrate 110 or the buffer layer BL that includes the active layer 112a.

[0126] The gate 112b can be formed on the gate insulating layer 111a to overlap with the channel region of the active layer 112a.

[0127] The interlayer insulating layer 111b can be formed to partially overlap with the gate 112b and the drain and source regions of the active layer 112a. For example... Figure 3 As shown, the interlayer insulating layer 111b can be formed over the entire light-emitting area in the circuit region CA and the sub-pixel SP.

[0128] The source electrode 112c can be electrically connected to the source region of the active layer 112a through a source contact hole provided in the interlayer insulating layer that overlaps with the source region of the active layer 112a.

[0129] The drain 112d can be electrically connected to the drain region of the active layer 112a through a drain contact hole provided in the interlayer insulating layer that overlaps with the drain region of the active layer 112a.

[0130] The drain 112d and the source 112c can be made of the same metallic material. For example, each of the drain 112d and the source 112c can be made of a single metal layer, a single alloy layer, or a multilayer of two or more layers that are the same as or different from the gate 112b.

[0131] Additionally, the thin-film transistors disposed in the pixel region may have a threshold voltage that shifts due to light. To prevent or at least reduce this, the display panel or substrate 110 may also include a light-shielding layer LS disposed beneath the active layer 112a of at least one of the thin-film transistors 112, the first switching thin-film transistor, and the second switching thin-film transistor.

[0132] A light-shielding layer LS is disposed between the substrate 110 and the active layer 112a to block light incident on the active layer 112a through the substrate 110, thereby minimizing or at least reducing the threshold voltage variation of the transistor caused by external light. Furthermore, the light-shielding layer LS may be disposed between the substrate 110 and the active layer 112a to prevent or at least reduce the visibility of the thin-film transistor to the user.

[0133] A passivation layer 111c can be disposed on the substrate 110 to cover the pixel area. The passivation layer 111c covers the drain 112d, source 112c, and gate 112b of the thin-film transistor 112, as well as the buffer layer BL.

[0134] Color Filter CF ( Figure 8 (As shown) can be disposed on the passivation layer 111c. For example, a color filter CF can be disposed between multiple inorganic films 111 and the first planarization layer 1131. The color filter CF may include a red color filter CF1 disposed in the red sub-pixel SP1, a blue color filter CF2 disposed in the blue sub-pixel SP3, and a green color filter CF3 disposed in the green sub-pixel SP4. Since the white sub-pixel SP2 is configured to emit white light, the white sub-pixel SP2 may not include a color filter.

[0135] A planarization layer 113 can be disposed on the substrate 110 to cover the passivation layer 111c and the color filter CF. According to one example, the planarization layer 113 can be disposed between the substrate 110 and the pixel electrode 114. The planarization layer 113 can be formed in the entire circuit region CA and the entire light-emitting region EA where the thin-film transistor 112 is disposed. Furthermore, the planarization layer 113 can be formed in other non-display regions NDA besides the pad region PA of the display region NDA and the entire display region DA. For example, the planarization layer 113 may include an extension (or extension) extending or expanding from the display region DA into other non-display regions NDA besides the pad region PA. Therefore, the planarization layer 113 can have a dimension relatively wider than the display region DA.

[0136] According to one example, the planarization layer 113 can be formed to have a relatively thick thickness, thereby providing a flat surface on the display area DA and the non-display area NDA. For example, the planarization layer 113 can be made of organic materials such as photoacrylic acid, benzocyclobutene, polyimide, and fluoropolymers.

[0137] The planarization layer 113 may include a first planarization layer 1131 and a second planarization layer 1132 disposed on the first planarization layer 1131. The first planarization layer 1131 may be disposed on the substrate 110. The second planarization layer 1132 may be disposed on the first planarization layer 1131. According to one example, the second planarization layer 1132 may be partially disposed between the first planarization layer 1131 and the pixel electrode 114.

[0138] The first planarization layer 1131 is configured to cover the passivation layer 111c and the color filter CF, such that the first planarization layer 1131 can be formed continuously across multiple sub-pixels SP. Conversely, the second planarization layer 1132 can be formed discontinuously. For example, the second planarization layer 1132 can be formed discontinuously by partially removing the patterned portion (or the first patterned portion) of the second planarization layer 1132 in the first non-light-emitting region NEA1. Therefore, as... Figure 6 As shown, multiple second planarization layers 1132 can be arranged in an island-like manner on the first planarization layer 1131. However, this is not a limitation, and the second planarization layers 1132 can be formed continuously.

[0139] refer to Figure 6 The upper surface of the second planarization layer 1132 can be provided to be flat. Therefore, the pixel electrode 114 on the second planarization layer 1132 can also be provided flat, and the organic light-emitting layer 116 and the reflective electrode 117 formed on the pixel electrode 114 can also be provided flat. Since the pixel electrode 114, the organic light-emitting layer 116, and the reflective electrode 117 (i.e., the organic light-emitting element layer E) are provided flat in the light-emitting region EA, the thicknesses of the pixel electrode 114, the organic light-emitting layer 116, and the reflective electrode 117 can be uniformly formed within the light-emitting region EA. Therefore, the organic light-emitting layer 116 can emit light uniformly and without deviation within the light-emitting region EA.

[0140] Pixel electrode 114 can be formed on the second planarization layer 1132. For example... Figure 5 As shown, the pixel electrode 114 can be connected to the drain or source of the thin-film transistor through contact holes penetrating the first planarization layer 1131 and the passivation layer 111c. The edge portions on both sides of the pixel electrode 114 can be covered by the dike 115. Because... Figure 5 It is a cross-sectional view in the first direction (Y-axis direction), so the embankment 115 can be set based on a plane (e.g., Figure 3The upper and lower edges of the pixel electrode 114 are respectively covered. Conversely, the dam 115 may not be provided between the plurality of sub-pixels SP. Therefore, a display device 100 according to one embodiment of the present disclosure may include a damless structure in which the dam 115 is not provided between the plurality of sub-pixels SP provided along the second direction (X-axis direction).

[0141] The pixel electrode 114 may be made of at least one of a transparent metal material or a semi-transparent metal material.

[0142] Because the display device 100 according to the embodiments of this disclosure is configured as a bottom-emitting type, the pixel electrode 114 can be formed of a transparent conductive material (or TCO), such as indium tin oxide (ITO) or indium zinc oxide (IZO) that can transmit light, or a semi-transparent conductive material, such as magnesium (Mg), silver (Ag), or an alloy of Mg and Ag.

[0143] Meanwhile, the material constituting the pixel electrode 114 may include MoTi. The pixel electrode 114 may be a first electrode or an anode.

[0144] The dam 115 can be a non-light-emitting area and can be set adjacent to the light-emitting area EA of each of the plurality of sub-pixels SP. For example, the dam 115 can be set in the non-light-emitting area NEA (or the second non-light-emitting area NEA2 on the upper and lower sides of the pixel electrode 114). The dam 115 can be formed to cover a portion of the edge of the pixel electrode 114. Therefore, the dam 115 can prevent the pixel electrode 114 and the reflective electrode 117 from contacting each other at the edge of the pixel electrode 114. The exposed portion of the pixel electrode 114 not covered by the dam 115 can be included in the light-emitting portion (or the light-emitting area EA).

[0145] After forming the dam 115, an organic light-emitting layer 116 can be formed to cover the pixel electrode 114 and the dam 115. Therefore, the dam 115 can be partially disposed between the pixel electrode 114 and the organic light-emitting layer 116. The dam 115 can be referred to in the terminology of a pixel-defining film. According to one example, the dam 115 may comprise organic and / or inorganic materials.

[0146] An organic light-emitting layer 116 can be formed on the pixel electrode 114 and the dam 115. The organic light-emitting layer 116 can be disposed below the reflective electrode 117. According to one example, the organic light-emitting layer 116 can be disposed in the light-emitting region EA and the non-light-emitting region NEA (or the first non-light-emitting region NEA1 and the second non-light-emitting region NEA2). The organic light-emitting layer 116 can be disposed between the pixel electrode 114 and the reflective electrode 117. Therefore, when a voltage is applied to each of the pixel electrode 114 and the reflective electrode 117, an electric field is formed between the pixel electrode 114 and the reflective electrode 117. Therefore, the organic light-emitting layer 116 can emit light. The organic light-emitting layer 116 can be formed as a common layer disposed on multiple sub-pixels SP and the dam 115.

[0147] An organic light-emitting layer 116 according to one embodiment can be provided to emit white light. The organic light-emitting layer 116 may include multiple stacks emitting different colors of light. For example, the organic light-emitting layer 116 may include a first stack, a second stack, and a charge-generating layer (CGL) disposed between the first and second stacks. Since the light-emitting layer can be configured to emit white light, each of the plurality of sub-pixels SP may include a color filter CF suitable for the corresponding color.

[0148] The first stack can be disposed on the pixel electrode 114, and can realize a structure in which the hole injection layer (HIL), hole transport layer (HTL), light emission layer (EML(B)) and electron transport layer (ETL) are stacked in sequence.

[0149] The charge generation layer can provide charge to the first and second stacked layers. The charge generation layer can include an N-type charge generation layer for providing electrons to the first stacked layer and a P-type charge generation layer for providing holes to the second stacked layer. The N-type charge generation layer can include a metallic material as a dopant.

[0150] The second stack can be disposed on the first stack and can be implemented in a structure in which the hole transport layer (HTL), the yellow-green (YG) emitting layer (EML (YG)) and the electron injection layer (EIL) are stacked in sequence.

[0151] In the display device 100 according to an embodiment of the present disclosure, since the organic light-emitting layer 116 is provided as a common layer, the first stack, the charge-generating layer, and the second stack can be disposed on a plurality of sub-pixels SP. According to another example, depending on the number of stacked layers, the organic light-emitting layer 116 can be provided in a three-layer or four-layer structure.

[0152] A reflective electrode 117 can be formed on the organic light-emitting layer 116. The reflective electrode 117 can be disposed in the non-display area NDA (or a portion of the non-display area NDA) and the display area DA. In the display area DA, the reflective electrode 117 can be disposed in the light-emitting area EA and the non-light-emitting area NEA (or the first non-light-emitting area NEA1 and the second non-light-emitting area NEA2). That is, the reflective electrode 117 can be configured to cover the entire display area DA. Therefore, the reflective electrode 117 can be configured to have a size larger than the display area DA and smaller than the substrate 110. Therefore, the reflective electrode 117 can be disposed in the non-display area NDA (or a portion of the non-display area NDA) and the display area DA.

[0153] According to one example, the reflective electrode 117 may comprise a metallic material. The reflective electrode 117 can reflect light emitted from the organic light-emitting layer 116 in the plurality of sub-pixels SP toward the lower surface of the substrate 110. Therefore, the display device 100 according to one embodiment of the present disclosure can be implemented as a bottom-emitting type display device.

[0154] The display device 100 according to one embodiment of this disclosure is of the bottom-emitting type and must reflect light emitted from the light-emitting layer 116 toward the substrate 110, and therefore the reflective electrode 117 can be made of a metallic material with high reflectivity. According to one example, the reflective electrode 117 can be formed of a metallic material with high reflectivity, such as silver (Ag), aluminum (Al), a stacked structure of aluminum and titanium (Ti / Al / Ti), a stacked structure of aluminum and ITO (ITO / Al / ITO), Ag alloys, and a stacked structure of Ag alloys and ITO (ITO / Ag alloy / ITO). The Ag alloy can be an alloy such as silver (Ag), palladium (Pd), and copper (Cu). The reflective electrode 117 can be referred to by terms such as a second electrode, a counter electrode, and a cathode.

[0155] An encapsulation layer 118 is formed on the reflective electrode 117. The encapsulation layer 118 is used to prevent or reduce the penetration of oxygen or moisture into the organic light-emitting layer 116 and the reflective electrode 117. The encapsulation layer 118 may include multiple layers, including at least one inorganic film and at least one organic film. The encapsulation layer 118 may also contain an absorbent material for absorbing moisture or oxygen to enhance the moisture-proof effect. For example, the absorbent material may be a getter.

[0156] On the other hand, such as Figure 3 As shown, the encapsulation layer 118 can be disposed not only in the light-emitting region EA, but also in the non-light-emitting region NEA. The encapsulation layer 118 can be disposed between the reflective electrode 117 and the opposing substrate 200.

[0157] In a display device 100 according to one embodiment of the present disclosure, the first planarization layer 1131 may be configured to have the same refractive index as the second planarization layer 1132. In this case, light emitted from the organic light-emitting layer 116 and directed toward the substrate 110 may not be refracted at the boundary between the first planarization layer 1131 and the second planarization layer 1132, but may instead be emitted to the outside of the substrate 110. However, this is not a limitation, and the first planarization layer 1131 may be configured to have a different refractive index than the second planarization layer 1132. In this case, light emitted from the organic light-emitting layer 116 and directed toward the substrate 110 may be refracted at the boundary between the second planarization layer 1132 and the first planarization layer 1131, and may be emitted to the outside of the substrate 110. An example is given below where the second planarization layer 1132 has the same refractive index as the first planarization layer 1131.

[0158] refer to Figure 6 and Figure 7 According to one embodiment of the present disclosure, the display device 100 may further include a first reflective portion 121 and a second reflective portion 122.

[0159] refer to Figure 6 The first reflective portion 121 can be configured to be tilted within the first non-emitting region NEA1. According to one example, the first reflective portion 121 can be disposed on the second planarization layer 1132 (or the tilted surface 1132b of the second planarization layer 1132) within the first non-emitting region NEA1. Figure 6 As shown, since the inclined surface 1132b of the second planarization layer 1132 is set to be inclined, the first reflective portion 121 provided on the inclined surface 1132b of the second planarization layer 1132 can be set to be inclined.

[0160] The first reflective portion 121 is formed of a light-reflecting material, allowing light emitted from the light-emitting region EA and guided by the waveguide to be reflected toward the light-emitting sub-pixel SP. The first reflective portion 121 can be formed along the contour of a first pattern portion recessed in the first non-light-emitting region NEA1. For example... Figure 6 As shown, the first reflective part 121 is part of the reflective electrode 117 disposed in the first non-light-emitting region NEA1, and therefore can be indicated by reference numeral 117'.

[0161] like Figure 6 As shown, the first reflective portion 121 can be obliquely disposed in the first non-light-emitting region NEA1. Therefore, the first reflective portion 121 can be represented by the terms internal reflective portion and internal oblique reflective portion, and it is located inside each of the plurality of sub-pixels SP.

[0162] Therefore, the display device 100 according to one embodiment of the present disclosure is provided with a reflective portion (or a first reflective portion 121), which is disposed in a non-light-emitting region NEA (or a first non-light-emitting region NEA1) disposed inside each of the plurality of sub-pixels SP, so that light extraction can be achieved even in the non-light-emitting region NEA (or the first non-light-emitting region NEA1), and thus the light efficiency can be improved.

[0163] refer to Figure 7 According to one example, the second reflective portion 122 can be disposed at an angle in the second non-emitting region NEA2. The second reflective portion 122 can be disposed at an angle on the inclined surface 1132b of the second planarization layer 1132 in the second non-emitting region NEA2. The second reflective portion 122 is formed of a light-reflecting material, such that light emitted from the emitting region EA and waveguided can be reflected towards the emitting region EA of the emitting sub-pixel SP. The second reflective portion 122 can be formed along the contour of a patterned portion (or a second patterned portion) recessed in the second non-emitting region NEA2. For example... Figure 7 As shown, the second reflective part 122 is part of the reflective electrode 117 disposed in the second non-light-emitting area NEA2, and therefore can be indicated by reference numeral 117".

[0164] Since the second reflective portion 122 is obliquely disposed in the second non-light-emitting region NEA2, it can be referred to by the terms external reflective portion and external oblique reflective portion, which is located outside each of the plurality of sub-pixels SP.

[0165] Therefore, the display device 100 according to one embodiment of the present disclosure is provided with a reflective portion (or a second reflective portion 122), which is located in a non-light-emitting region NEA (or a second non-light-emitting region NEA2) provided outside a plurality of sub-pixels SP, so that light toward adjacent sub-pixels SP can be reflected by the reflective portion (or the second reflective portion 122), thereby preventing or reducing color mixing and maximizing or improving light extraction efficiency.

[0166] As a result, since the display device 100 according to one embodiment of the present disclosure can extract light even in the non-light-emitting region NEA by means of reflective portions (or first reflective portion 121 and second reflective portion 122) provided inside and outside each of the plurality of sub-pixels SP, the display device can have the same luminous efficiency or improve the luminous efficiency with lower power compared to a display device in which there are no reflective portions inside and outside each of the plurality of sub-pixels SP, thereby reducing the overall power consumption.

[0167] Meanwhile, in a display device 100 according to one embodiment of the present disclosure, some light emitted from the organic light-emitting layer 116 can be emitted to the outside of the substrate 110 through the first reflective portion 121 and the second reflective portion 122. Therefore, the light reflected by each of the first reflective portion 121 and the second reflective portion 122 and emitted toward the substrate 110 can be defined as reflected light EL.

[0168] For example, such as Figure 6 As shown, a portion of the light emitted from the organic light-emitting layer 116 can be reflected by the first reflective portion 121 disposed in the first non-light-emitting region NEA1 and emitted to the outside of the substrate 110. Therefore, the reflected light EL reflected and emitted by the first reflective portion 121 in the first non-light-emitting region NEA1 can be defined as the first reflected light EL1.

[0169] On the contrary, such as Figure 7 As shown, a portion of the light emitted from the organic light-emitting layer 116 can be reflected and emitted to the outside of the substrate 110 by the second reflective portion 122 disposed in the second non-light-emitting region NEA2. Therefore, the reflected light EL reflected and emitted by the second reflective portion 122 in the second non-light-emitting region NEA2 can be defined as the second reflected light EL2.

[0170] Therefore, the display device 100 according to one embodiment of the present disclosure can improve light efficiency because the light lost by the waveguide can be reflected by the first reflector 121 in the first non-light-emitting region NEA1 and emitted as the first reflected light EL1, and the light lost by the waveguide can be reflected by the second reflector 122 in the second non-light-emitting region NEA2 and emitted as the second reflected light EL2.

[0171] Refer again Figure 6 In a display device 100 according to one embodiment of the present disclosure, a data branch line BRL1 may be provided on a first repair unit RPP1.

[0172] In the repair process, a laser device can apply laser shock LS from the lower part of the substrate 110 toward the interior of the substrate 110 (e.g., the first repair portion RPP1 (or data branch line BRL1)). However, if the first repair portion RPP1 is not present, the laser shock LS may affect not only the data branch line BRL1, but also the reflective electrode 117 on the data branch line BRL1, thereby causing damage (or breakage) to the reflective electrode 117. Therefore, a display device 100 according to one embodiment of the present disclosure is provided such that the data branch line BRL1 is disposed on the first repair portion RPP1, so as to prevent or reduce damage (or breakage) to the reflective electrode 117 during the repair process using the laser device, while allowing only the data branch line BRL1 to be cut.

[0173] For the reasons described above, the display device 100 according to one embodiment of the present disclosure can be configured such that the reference branch BRL2 is disposed on the second repair section RPP2.

[0174] Simultaneously, each of the data branch BRL1 and the reference branch BRL2 can be positioned closer to the substrate 110 than the reflective electrode 117. Therefore, the laser shock LS generated by the laser device in the repair process can have a long wavelength. This is because if the laser shock LS has a short wavelength, it may penetrate deep into the substrate 110 and damage the organic light-emitting element layer E (e.g., pixel electrode 114). Therefore, in a display device 100 according to one embodiment of this disclosure, a long-wavelength laser shock LS is used in the repair process of each of the data branch BRL1 and the reference branch BRL2, allowing each of the data branch BRL1 and the reference branch BRL2 to be cut while preventing or reducing damage to the organic light-emitting element layer E. In this disclosure, the use of a long-wavelength laser shock LS can be defined as the first laser shock LS1 (…). Figure 6 (As shown).

[0175] Meanwhile, the width RW of the repair portion RPP (e.g., the first repair portion RPP1) can be set to be narrower than the width NW of the first non-light-emitting region NEA1. If the width RW of the repair portion RPP (e.g., the first repair portion RPP1) is equal to or greater than the width NW of the first non-light-emitting region NEA1, the light reflected by the first reflective portion 121 is blocked by the repair portion RPP (e.g., the first repair portion RPP1) and cannot be emitted to the outside of the substrate 110. Therefore, the display device 100 according to one embodiment of the present disclosure can have a repair structure, while preventing a decrease in light extraction efficiency by making the width RW of the repair portion RPP (e.g., the first repair portion RPP1) narrower than the width NW of the first non-light-emitting region A1.

[0176] A display device 100 according to one embodiment of the present disclosure may include a color filter CF disposed between the repair section RPP and the reflective electrode 117. For example, such as Figure 6 As shown, a blue filter CF2 can also be disposed between the repair section RPP and the reflective electrode 117. Therefore, the blue filter CF2 can prevent the laser shock LS from reaching the reflective electrode 117 during the repair process. That is, the blue filter CF2 can have a blocking function to reduce the laser shock LS.

[0177] like Figure 3As shown, the blue sub-pixel SP3, which is equipped with a blue color filter CF2, can be arranged adjacent to the white sub-pixel SP2. Therefore, when the blue color filter CF2 is formed in the blue sub-pixel SP3, by also forming a blue color filter CF in the first non-emitting region NEA1 of the white sub-pixel SP2, the blue color filter CF2 can be easily provided between the repair section RPP and the reflective electrode 117 without additional processing. Therefore, the display device 100 according to one embodiment of the present disclosure can have a structural feature in which the blue color filter CF2 is not only provided in the blue sub-pixel SP3, but also provided in the first non-emitting region NEA1 of the white sub-pixel SP2 (or the first non-emitting region NEA1 of the repair section RPP where the white sub-pixel SP2 is provided).

[0178] In the above description, the blue color filter CF2 is described as reducing laser shock LS, but it is not limited to this. Furthermore, if color filters of different colors or materials can reduce (or absorb) laser shock LS, they can be configured between the repair portion RPP and the reflective electrode 117. For example, a red color filter CF1 or a green color filter CF3 can be configured between the repair portion RPP and the reflective electrode 117. Alternatively, a material forming the dam 115 can be provided between the repair portion RPP and the reflective electrode 117.

[0179] Refer again Figure 6 In a display device 100 according to one embodiment of the present disclosure, the width CFW of the color filter CF (or blue color filter CF2) disposed between the repair portion RPP and the reflective electrode 117 can be set to be wider than the width RW of the repair portion RPP. As described above, the color filter CF (or blue color filter CF2) is used to reduce (or absorb) laser shock LS. Therefore, if the width CFW of the color filter CF (or blue color filter CF2) disposed between the repair portion RPP and the reflective electrode 117 is equal to or less than the width RW of the repair portion RPP, the laser shock LS may affect the reflective electrode 117, thereby damaging the reflective electrode 117. Therefore, in the display device 100 according to one embodiment of the present disclosure, the width CFW of the color filter CF (or blue color filter CF2) disposed between the repair portion RPP and the reflective electrode 117 is set to be wider than the width RW of the repair portion RPP, so that damage to the reflective electrode 117 can be prevented or reduced during the repair process.

[0180] In addition, such as Figure 6As shown, if the width CFW of the color filter CF (or blue color filter CF2) disposed between the repair portion RPP and the reflective electrode 117 is wider than the width RW of the repair portion RPP, then the light reflected by the first reflective portion 121 can pass through the blue color filter CF2 and be emitted to the outside of the substrate 110. Therefore, since the display device 100 according to one embodiment of the present disclosure can emit blue light from the first non-emitting area NEA1 of the white sub-pixel SP2, the image output from the substrate 110 can have a bluish tint. Therefore, the display device 100 according to one embodiment of the present disclosure can meet the needs of users who want a bluish tint (or a cool tone).

[0181] According to one embodiment of this disclosure, the display device 100 includes a red color filter CF1 disposed between the repair section RPP and the reflective electrode 117, such that red light can be emitted from the first non-emitting region NEA1 of the white sub-pixel SP2, thereby allowing the image output through the substrate 110 to have a yellowish (or warm) tone. In this case, the user's requirement for a yellowish (or warm) tone can be met.

[0182] Therefore, a display device 100 according to one embodiment of the present disclosure can achieve a color sense that matches the color coordinates required by the user by providing a color filter CF among various color filters in the first non-light-emitting area NEA1 of the white sub-pixel SP2.

[0183] Figure 8 yes Figure 3 The schematic cross-sectional view of line IV-IV′ shown illustrates the cross-sectional view of the red sub-pixel SP1 in the first direction (Y-axis direction).

[0184] The cross-sectional view of the red sub-pixel SP1 in the first direction (Y-axis direction) is the same as above. Figure 6 The cross-sectional view of the white sub-pixel SP2 in the first direction (Y-axis direction) is the same, except that the red color filter CF1 covers the first light-emitting area EA1, the second light-emitting area EA2 and the third light-emitting area EA3, and the reference branch BRL2 is set on the second repair part RPP2.

[0185] refer to Figure 8 In the red sub-pixel SP1, a red color filter CF1 is disposed between the repair section RPP and the reflective electrode 117, allowing red light to be emitted from the first non-emitting region NEA1 of the red sub-pixel SP1. Therefore, since the display device 100 according to one embodiment of the present disclosure can emit red light through the first reflective section 121 and the red color filter CF1 even in the first non-emitting region NEA1 of the red sub-pixel SP1, the light extraction efficiency of red light is not reduced even if the first non-emitting region NEA1 is disposed inside the red sub-pixel SP1.

[0186] Meanwhile, in the red sub-pixel SP1, the red filter CF1 is positioned between the second repair section RPP2 and the reflective electrode 117, so that the red filter CF1 can have a barrier function to reduce laser shock to LS in the repair process of cutting the reference branch BRL2.

[0187] Figure 9 It is along Figure 3 The diagram shows a schematic cross-section taken by line V-V′.

[0188] Reference Figure 9 According to one embodiment of the present disclosure, the display device 100 can be configured such that the width RW of the first repair portion RPP1 is wider than the width BW of the data branch line BRL1. If the width RW of the first repair portion RPP1 is equal to or less than the width BW of the data branch line BRL1, the first repair portion RPP1 may not be able to sufficiently receive the laser impact from the laser device, and therefore may not be able to cut the data branch line BRL1. Therefore, in one embodiment of the display device 100 according to the present disclosure, the width RW of the first repair portion RPP1 is set to be wider than the width BW of the data branch line BRL1, so that sufficient laser impact can be applied to the data branch line BRL1 through the first repair portion RPP1 during the repair process, thereby making it easy to cut the data branch line BRL1. For this purpose, one embodiment of the display device 100 according to the present disclosure may have a structural feature in which the width RW′ of the second repair portion RPP2 is wider than the width BW′ of the reference branch line BRL2.

[0189] Reference Figure 9 The second connecting part CP2 can be located between the first repair part RPP1 and the second repair part RPP2.

[0190] According to one embodiment of this disclosure, when a foreign object adheres to one or two of the first light-emitting area EA1, the second light-emitting area EA2, and the third light-emitting area EA3, the first connecting portion CP1 or the second connecting portion CP2 is cut using a laser device. This causes the light-emitting area with the foreign object (e.g., the first light-emitting area EA1) to darken, and the remaining light-emitting areas (e.g., the second light-emitting area EA2 and the third light-emitting area EA3) can be driven normally (or slightly darkened). Therefore, in order to prevent or reduce damage to the circuitry around the second connecting portion CP2 (or the first connecting portion CP1) during the repair process of cutting the second connecting portion CP2 (or the first connecting portion CP1), the width CW of the second connecting portion CP2 (or the first connecting portion CP1) can be set to be narrower than the width EW of the light-emitting area EA. Therefore, as... Figure 9 As shown, a display device 100 according to one embodiment of the present disclosure may have a structural feature in which a second connecting portion CP2 is disposed between a first repair portion RPP1 and a second repair portion RPP2.

[0191] Since the second connecting portion CP2 is configured to connect the second light-emitting region EA2 and the third light-emitting region EA3, the second connecting portion CP2 can have the same structure as each of the second light-emitting region EA2 and the third light-emitting region EA3. Therefore, as Figure 9 As shown, the second connection portion CP2 may include an organic light-emitting element layer E on which a pixel electrode 114, an organic light-emitting layer 116, and a reflective electrode 117 are disposed. Therefore, the pixel electrode 114 included in the second connection portion CP2 can be represented by the reference numeral 114'. Similarly, the pixel electrode 114 included in the first connection portion CP1 can also be represented by the reference numeral 114'.

[0192] At the same time, such as Figure 3 As shown, the first connecting part CP1 can be positioned relatively farther away from the circuit region CA than the second connecting part CP2. This is because the first connecting part CP1 is used to connect the first light-emitting region EA1 and the second light-emitting region EA2, which are farther away from the circuit region CA than the third light-emitting region EA3. Therefore, the first connecting part CP1 may not be positioned between the first repair part RPP1 and the second repair part RPP2.

[0193] Refer again Figure 9 In a display device 100 according to one embodiment of the present disclosure, the first repair portion RPP1 or the second repair portion RPP2 may be spaced apart from the second connecting portion CP2 by a first distance. For example, the first repair portion RPP1 may be spaced apart from the second connecting portion CP2 by a first distance D1. The second repair portion RPP2 may be spaced apart from the second connecting portion CP2 by a first distance D1'. The first distance D1 (or the first distance D1') may be the minimum distance that does not affect the first repair portion RPP1 (or the second repair portion RPP2) during the cutting process of the second connecting portion CP2. Figure 9 As shown, the data branch line BRL1 can be disposed on the first repair section RPP1, and the reference branch line BRL2 can be disposed on the second repair section RPP2. Therefore, if the first repair section RPP1 or the second repair section RPP2 is disposed at a distance less than a first distance from the second connecting section CP2, laser shock can also be transmitted to the first repair section RPP1 or the second repair section RPP2, thereby damaging the data branch line BRL1 or the reference branch line BRL2. Therefore, the display device 100 according to one embodiment of the present disclosure may have a structural feature in which the first repair section RPP1 or the second repair section RPP2 is disposed at a first distance from the second connecting section CP2.

[0194] The second connecting portion CP2 can be cut by the laser shock LS of the laser device. Therefore, when the first repair portion RPP1 (or the second repair portion RPP2) is located closer to the second connecting portion CP2 than the first distance D1 (or the first distance D1′), the data branch line BRL1 and / or the reference branch line BRL2 can be cut by the laser shock LS. When the data branch line BRL1 and / or the reference branch line BRL2 are cut, the entire light-emitting area EA connected to the data branch line BRL1 and / or the reference branch line BRL2 cannot be driven.

[0195] Therefore, in a display device 100 according to one embodiment of the present disclosure, the first repair portion RPP1 or the second repair portion RPP2 is configured to be spaced apart from the second connection portion CP2 by a first distance in the second direction (X-axis direction), so that damage to the data branch line BRL1 and / or the reference branch line BRL2 can be prevented or reduced during the repair process (or cutting process) for the second connection portion CP2.

[0196] At the same time, such as Figure 9 As shown, the second connecting portion CP2 can be further away from the substrate 110 in the third direction (Z-axis direction) than the first repair portion RPP1 (or the second repair portion RPP2). Therefore, the laser shock LS generated by the laser device during the repair process can have a short wavelength. This is because when the laser shock LS has a short wavelength, the laser shock LS may penetrate deep into the interior of the substrate 110. Therefore, according to one embodiment of this disclosure, the display device 100 can cut the second connecting portion CP2 by using a short-wavelength laser shock LS in the repair process (or cutting process) of the second connecting portion CP2. In this disclosure, the use of a short-wavelength laser shock LS can be defined as the second laser shock LS2 (e.g., Figure 9 (As shown).

[0197] refer to Figure 9 The data line DL (e.g., the second data line DL2) can be configured to be spaced apart from the first repair portion RPP1 by a second distance D2 in the first non-light-emitting area NEA1. The second distance D2 can be the minimum distance that does not affect the data line DL during the process of cutting the data branch line BRL1 using the first repair portion RPP1.

[0198] Data line BRL1 can be cut by the laser shock LS of the laser device through the first repair section RPP1. Therefore, if data line DL (e.g., second data line DL2) is positioned closer to the first repair section RPP1 than the second distance D2, data line DL can be cut by the laser shock LS. If data line DL is cut, the entire light-emitting area EA connected to the cut data line DL cannot be driven.

[0199] Therefore, in a display device 100 according to one embodiment of the present disclosure, the data line DL (e.g., the second data line DL2) is configured to be spaced apart from the first repair portion RPP1 by a second distance D2 in the first non-light-emitting area NEA1, so that damage to the data line DL can be prevented during the repair process (or cutting process) of the data branch line BRL1 using the first repair portion RPP1.

[0200] For the reasons described above, a display device 100 according to one embodiment of the present disclosure may be configured such that the reference line RL is set to be spaced apart from the second repair portion RPP2 by a second distance D2' in the first non-light-emitting region NEA1.

[0201] refer to Figure 9 According to one embodiment of the present disclosure, the display device 100 can be configured such that the color filter CF (e.g., blue color filter CF2) overlaps with the second connecting portion CP2, the first repair portion RPP1, and the second repair portion RPP2. For example, as Figure 9 As shown, the color filter CF (e.g., blue color filter CF2) can be configured to cover the first repair portion RPP1 and the second repair portion RPP2 between the second connection portion CP2 and the substrate 110.

[0202] As described above, the display device 100 according to one embodiment of the present disclosure can prevent the entire light-emitting area EA of each sub-pixel SP from darkening due to short circuits between lines included in the substrate 110. For example, in the event of a short circuit between lines, the entire light-emitting area EA is prevented from darkening by cutting the data branch line BRL1 or the reference branch line BRL2 with a laser shock LS (or a first laser shock LS1) sent to the repair unit RPP. Furthermore, the display device 100 according to one embodiment of the present disclosure can prevent the entire light-emitting area EA of each sub-pixel SP from darkening due to foreign matter generated during the manufacturing process. For example, by cutting with a laser shock LS (or a second laser shock LS2) using a laser device, the first connecting portion CP1 (or the second connecting portion CP2) can be prevented from darkening, thereby preventing the entire light-emitting area EA from darkening.

[0203] Therefore, the display device 100 according to one embodiment of the present disclosure is configured such that the color filter CF (e.g., blue color filter CF2) overlaps with the second connection portion CP2, the first repair portion RPP1 and the second repair portion RPP2, such that the color filter CF (e.g., blue color filter CF2) acts as a barrier to reduce laser shock LS, thereby preventing or reducing damage (or cutting) of the reflective electrode 117 by laser shock LS.

[0204] Figure 10 This is a schematic plan view showing two pixels of a display device according to one embodiment of the present disclosure.

[0205] refer to Figure 10 Multiple pixels (P) may include a first pixel P1 and a second pixel P2. For example, the second pixel P2 may be positioned above the first pixel P1 in a first direction (Y-axis direction).

[0206] The first pixel P1 may include a first sub-pixel SP1, a second sub-pixel SP2, a third sub-pixel SP3, and a fourth sub-pixel SP4, which are sequentially arranged in the second direction (X-axis direction). For example, the first sub-pixel SP1 may be a red sub-pixel, the second sub-pixel SP2 may be a white sub-pixel, the third sub-pixel SP3 may be a blue sub-pixel, and the fourth sub-pixel SP4 may be a green sub-pixel.

[0207] The second pixel P2 may include another first sub-pixel SP1', another second sub-pixel SP2', another third sub-pixel SP3', and another fourth sub-pixel SP4' arranged sequentially in the second direction (X-axis direction). For example, the other first sub-pixel SP1' may be a red sub-pixel, the other second sub-pixel SP2' may be a white sub-pixel, the other third sub-pixel SP3' may be a blue sub-pixel, and the other fourth sub-pixel SP4' may be a green sub-pixel.

[0208] Therefore, another first sub-pixel SP1′ of the second pixel P2 can be positioned above the first sub-pixel SP1 of the first pixel P1 in the first direction (Y-axis direction). Another second sub-pixel SP2′ of the second pixel P2 can be positioned above the second sub-pixel SP2 of the first pixel P1 in the first direction (Y-axis direction). Another third sub-pixel SP3′ of the second pixel P2 can be positioned above the third sub-pixel SP3 of the first pixel P1 in the first direction (Y-axis direction). Another fourth sub-pixel SP4′ of the second pixel P2 can be positioned above the fourth sub-pixel SP4 of the first pixel P1 in the first direction (Y-axis direction).

[0209] like Figure 10 As shown, each of the first to fourth sub-pixels SP1, SP2, SP3, and SP4 of the first pixel P1 may include a first light-emitting region EA1, a first connecting portion CP1, a second light-emitting region EA2, a second connecting portion CP2, and a third light-emitting region EA3. Each of the other first to fourth sub-pixels SP1', SP2', SP3', and SP4' of the second pixel P2 may have the same structure as each of the first to fourth sub-pixels SP1, SP2, SP3, and SP4 of the first pixel P1.

[0210] The first sub-pixel SP1 of the first pixel P1 may include a pixel electrode 114 partially disposed in the first light-emitting region EA1. The other first sub-pixel SP1' of the second pixel P2 may include a circuit region CA. For example... Figure 10 As shown, the circuit region CA of another first sub-pixel SP1' can be set between the third light-emitting region EA3 of the other first sub-pixel SP1' and the first light-emitting region EA1 of the first sub-pixel SP1.

[0211] In a display device 100 according to one embodiment of the present disclosure, the substrate 110 may further include bonding lines WDL. The bonding lines WDL are used to drive the light-emitting area EA of a sub-pixel SP that has experienced a line short circuit (e.g., a data line short circuit or a reference line short circuit) and the light-emitting area EA of another sub-pixel SP'.

[0212] For example, when a short circuit occurs in the data line DL, after cutting the data branch line BRL1 through the first repair section RPP1, the pixel electrode 114 in the short-circuited sub-pixel SP and another sub-pixel SP (for example, refer to...) can be connected by the bonding line WDL. Figure 10 The circuit regions CA (or thin-film transistors 112) in the adjacent sub-pixel SP are connected to each other. For example, by applying a laser shock to the solder point WDP in the solder line WDL, the pixel electrode 114 in the short-circuited sub-pixel SP can be connected to the circuit region CA (or thin-film transistor 112) of another sub-pixel SP' (or another normally driven sub-pixel SP'). Therefore, the solder line WDL can connect the pixel electrode 114 of the sub-pixel SP and the circuit region CA of another sub-pixel SP'.

[0213] For example, such as Figure 10 As shown, the bonding line WDL between the first sub-pixel SP1 and another first sub-pixel SP1' can be connected to the pixel electrode 114 of the first sub-pixel SP1 and the circuit area CA of the other first sub-pixel SP1'. The bonding line WDL between the second sub-pixel SP2 and another second sub-pixel SP2' can be connected to the pixel electrode 114 of the second sub-pixel SP2 and the circuit area CA of the other second sub-pixel SP2'. The bonding line WDL between the third sub-pixel SP3 and another third sub-pixel SP3' can be connected to the pixel electrode 114 of the third sub-pixel SP3 and the circuit area CA of the other third sub-pixel SP3'. The bonding line WDL between the fourth sub-pixel SP4 and another fourth sub-pixel SP4' can be connected to the pixel electrode 114 of the fourth sub-pixel SP4 and the circuit area CA of the other fourth sub-pixel SP4'.

[0214] At the same time, such as Figure 10As shown, each of the multiple bonding lines WDL may include a bonding point WDP that overlaps with the circuit region CA of another sub-pixel SP'. For example, the bonding line WDL between a first sub-pixel SP1 and another first sub-pixel SP1' may include a bonding point WDP that overlaps with the circuit region CA of another first sub-pixel SP1'. The bonding line WDL between a second sub-pixel SP2 and another second sub-pixel SP2' may include a bonding point WDP that overlaps with the circuit region CA of another second sub-pixel SP2'. The bonding line WDL between a third sub-pixel SP3 and another third sub-pixel SP3' may include a bonding point WDP that overlaps with the circuit region CA of another third sub-pixel SP3'. The bonding line WDL between a fourth sub-pixel SP4 and another fourth sub-pixel SP4' may include a bonding point WDP that overlaps with the circuit region CA of another fourth sub-pixel SP1'.

[0215] Therefore, in a display device 100 according to one embodiment of the present disclosure, after the data branch BRL1 or reference branch BRL2 of a sub-pixel SP that has experienced a line short circuit (e.g., a short circuit in a data line or a short circuit in a reference line) is cut by a laser device, a laser shock is applied to the solder joint WDP, allowing the pixel electrode 114 of the short-circuited sub-pixel SP and the thin-film transistor 112 of another normally driven sub-pixel SP′ to connect to each other. Therefore, in a display device 100 according to one embodiment of the present disclosure, the light-emitting region EA of the short-circuited sub-pixel SP can be driven together with the light-emitting region EA of another sub-pixel SP.

[0216] In the following text, reference will be made to Figure 10 The repair process of the display device 100 according to an embodiment of the present disclosure is described. The repair process of the display device 100 according to an embodiment of the present disclosure may include a first repair process by cutting the connecting portions (e.g., the first connecting portion CP1 and / or the second connecting portion CP2), and a second repair process using the repair portion RPP.

[0217] refer to Figure 10 The first repair process can be performed under the following various conditions.

[0218] First, for example, at the position of the first sub-pixel SP1 In the first case where a foreign object is generated (or attached) in the first light-emitting area EA1 (e.g., the first light-emitting area EA1), a laser shock LS is applied to the first connecting portion CP1 to cut the first connecting portion CP1. This can be achieved by applying a second laser shock LS2 to the first connecting portion CP1 using a laser device. Therefore, the second light-emitting area EA2, the second connecting portion CP2, and the third light-emitting area EA3 of the first sub-pixel SP1 can be driven normally (or slightly dimmed).

[0219] Next, for example, at the position of the first sub-pixel SP1 (e.g., the second luminous region EA2). In the event of foreign matter being generated (or attached), a laser shock LS is applied to the first connecting portion CP1 and the second connecting portion CP2 respectively to cut the first connecting portion CP1 and the second connecting portion CP2. This can be achieved by applying a second laser shock LS2 to each of the first connecting portion CP1 and the second connecting portion CP2 using a laser device.

[0220] Next, a laser shock is applied to the solder joint WDP that overlaps with the circuit region CA of another first sub-pixel SP1' to connect the pixel electrode 114 in the first light-emitting region EA1 of the first sub-pixel SP1 to the thin-film transistor 112 in the circuit region CA of the other first sub-pixel SP1'. Therefore, the first light-emitting region EA1 of the first sub-pixel SP1 can be driven together with the light-emitting region EA of the other first sub-pixel SP1'. Thus, the first light-emitting region EA1 of the first sub-pixel SP1 can be driven normally (or slightly dimmed).

[0221] Next, at the position of the first sub-pixel SP1 In the third case where foreign matter is generated (or attached) in the third luminescent region EA3 (e.g.), a laser shock LS is applied to the second connector CP2 to cut the second connector CP2. This can be achieved by applying a second laser shock LS2 to the second connector CP2 using a laser device.

[0222] Next, a laser beam is applied to the solder joint WDP, which overlaps with the circuit region CA of another first sub-pixel SP1', to connect the pixel electrode 114 in the first light-emitting region EA1 of the first sub-pixel SP1 to the thin-film transistor 112 in the circuit region CA of the other first sub-pixel SP1'. The pixel electrode 114 in the second light-emitting region EA2 of the first sub-pixel SP1 can be connected to the pixel electrode 114 in the first light-emitting region EA1 of the first sub-pixel SP1 through the pixel electrode 114 in the first connection portion CP1 of the first sub-pixel SP1. Therefore, the first light-emitting region EA1, the first connection portion CP1, and the second light-emitting region EA2 of the first sub-pixel SP1 can be driven together with the light-emitting region EA of the other first sub-pixel SP1'.

[0223] Therefore, in a display device 100 according to one embodiment of the present disclosure, as described above, a first repair process is performed in the first to third cases to prevent or reduce the darkening of the entire light-emitting area EA of each sub-pixel SP due to foreign matter generated in the manufacturing process.

[0224] Refer again Figure 10 The second repair process can be performed under various circumstances, as shown below.

[0225] First, in the fourth case where a short circuit occurs in the data line DL (e.g., the second data line DL2) of the second sub-pixel SP2, a laser shock LS is applied to the position. (For example, the first repair section RPP1) cuts the data branch line BRL1. This can be achieved by applying a first laser shock LS1 to the first repair section RPP1 using a laser device.

[0226] Next, a laser shock is applied to the solder joint WDP, which overlaps with the circuit region CA of another second sub-pixel SP2', to connect the pixel electrode 114 in the first light-emitting region EA1 of the second sub-pixel SP2 and the thin-film transistor 112 in the circuit region CA of the other second sub-pixel SP2'. The pixel electrode 114 in the second light-emitting region EA2 of the second sub-pixel SP2 can be connected to the pixel electrode 114 in the first light-emitting region EA1 of the second sub-pixel SP2 via the pixel electrode 114 in the first connection portion CP1 of the second sub-pixel SP2, and the pixel electrode 114 in the third light-emitting region EA3 of the second sub-pixel SP2 can be connected to the pixel electrode 114 in the second light-emitting region EA2 of the second sub-pixel SP2 via the pixel electrode 114 in the second connection portion CP2 of the second sub-pixel SP2. Therefore, the first light-emitting region EA1, the first connection portion CP1, the second light-emitting region EA2, the second connection portion CP2, and the third light-emitting region EA3 of the second sub-pixel SP2 can be driven together with the light-emitting region EA of the other second sub-pixel SP2'.

[0227] Next, for example, in the fifth case where the reference line RL is short-circuited, regarding the position... (For example, the second repair section (RPP2)) applies a laser shock LS to cut the reference line branch BRL2. This can be achieved by applying a first laser shock LS1 to the second repair section RPP2 using a laser device.

[0228] Next, a laser shock is applied to the solder joint WDP, which overlaps with the circuit region CA of another second sub-pixel SP2', to connect the pixel electrode 114 in the first light-emitting region EA1 of the second sub-pixel SP2 and the thin-film transistor 112 in the circuit region CA of the other second sub-pixel SP2'. The pixel electrode 114 in the second light-emitting region EA2 of the second sub-pixel SP2 can be connected to the pixel electrode 114 in the first light-emitting region EA1 of the second sub-pixel SP2 via the pixel electrode 114 in the first connection portion CP1 of the second sub-pixel SP2, and the pixel electrode 114 in the third light-emitting region EA3 of the second sub-pixel SP2 can be connected to the pixel electrode 114 in the second light-emitting region EA2 of the second sub-pixel SP2 via the pixel electrode 114 in the second connection portion CP2 of the second sub-pixel SP2. Therefore, the first light-emitting region EA1, the first connection portion CP1, the second light-emitting region EA2, the second connection portion CP2, and the third light-emitting region EA3 of the second sub-pixel SP2 can be driven together with the light-emitting region EA of the other second sub-pixel SP2'.

[0229] Therefore, in a display device 100 according to one embodiment of the present disclosure, a second repair process is performed in the fourth and fifth cases described above, thereby preventing or reducing the darkening of the entire light-emitting area EA of each sub-pixel SP due to short circuits between electrodes (or lines).

[0230] Meanwhile, the above describes the execution of a welding process to connect the pixel electrode 114 in the first light-emitting region EA1 of the second sub-pixel SP2 that generates (or attaches) foreign matter to the thin-film transistor 112 in the circuit region CA of another second sub-pixel SP2′ by applying laser shock to the welding point WDP in the second repair process, but is not necessarily limited thereto.

[0231] According to one embodiment of the present disclosure, the display device 100 may omit the bonding line WDL, which includes bonding points WDP for expanding the light-emitting area EA (or aperture ratio) of each of the plurality of sub-pixels SP. In this case, a weak darkening process can be performed, in which only the light-emitting area where foreign matter has been generated is darkened by cutting the first connection portion CP1 or the second connection portion CP2, while the remaining light-emitting areas operate normally. When the weak darkening process is performed, some light-emitting areas of a sub-pixel cannot be driven, so the current density of the remaining normally driven light-emitting areas may increase. Therefore, a compensation process can be performed in which a reduced data voltage is provided to the sub-pixel SP undergoing the weak darkening process compared to the normally driven sub-pixel SP.

[0232] Embodiments of this disclosure have been described in more detail with reference to the accompanying drawings; however, this disclosure is not necessarily limited to these embodiments and can be practiced with various modifications without departing from the technical spirit of this disclosure. Therefore, the embodiments disclosed herein are intended to illustrate, not limit, the technical spirit of this disclosure, and the scope of the technical spirit of this disclosure is not limited by these embodiments. Thus, the above embodiments are exemplary in all respects and should be understood as non-limiting. All technical ideas within the scope of this disclosure should be construed as being included within the scope of the claims of this disclosure.

[0233] According to the present disclosure, the display device can expand the size (or area) of the light-emitting region by having a repair portion disposed in a non-light-emitting region (or a first non-light-emitting region) disposed inside each of a plurality of sub-pixels.

[0234] The display device according to this disclosure can have improved light efficiency due to the increase in the size (or area) of the light-emitting region.

[0235] The display device according to this disclosure may be provided with a reflective portion (or a first reflective portion), which is disposed in a non-light-emitting region (or a first non-light-emitting region) disposed inside a plurality of sub-pixels, thereby improving the light extraction efficiency of light emitted from the light-emitting element layer.

[0236] The display device according to this disclosure is provided with a reflective portion (or a second reflective portion) disposed in a non-light-emitting area (or a second non-light-emitting area) disposed outside a plurality of sub-pixels, such that the reflective portion (or the second reflective portion) can reflect light toward adjacent sub-pixels, thereby maximizing or improving light extraction efficiency.

[0237] In some implementations, each subpixel within the display area may include multiple light-emitting regions. For example, a first light-emitting region EA1 and a second light-emitting region EA2 may be disposed adjacent to each other within a single subpixel. Connecting portions (e.g., CP1, CP2) may be disposed between the first and second light-emitting regions and may be electrically or structurally connected to them. In a plan view, the connecting portion may be represented as a narrower region connecting a wider light-emitting region. A first non-light-emitting region NEA1 may extend into the space between the first light-emitting region EA1 and the second light-emitting region EA2, and may be recessed or recessed relative to the periphery of those light-emitting regions when viewed from above (e.g., in a top view or plan view). In such an arrangement, the first non-light-emitting region NEA1 may be at least partially surrounded by the first and second light-emitting regions and the connecting portion in the same plan view. A repair portion RPP may be disposed within the first non-light-emitting region NEA1 to facilitate electrical isolation or repair.

[0238] Each sub-pixel may include a stacked structure formed on a substrate, the stacked structure including a planarization layer, a pixel electrode disposed on the planarization layer, an organic light-emitting layer disposed on the pixel electrode, and a reflective electrode disposed above the organic light-emitting layer. In some embodiments, the reflective electrode may extend uninterruptedly across the light-emitting and non-light-emitting regions (e.g., continuously and adjacently). A first reflective portion 121 of the reflective electrode may be disposed on a tilted surface of the planarization layer in a first non-light-emitting region. The tilted portion may be configured to redirect light emitted by adjacent light-emitting regions toward the substrate, thereby increasing light extraction efficiency. A second non-light-emitting region may be disposed between adjacent sub-pixels and may be connected to the first non-light-emitting region. A second reflective portion 122 of the reflective electrode may be disposed on a tilted surface of the second non-light-emitting region and may be similarly configured to guide light toward the substrate.

[0239] In some embodiments, the reflective electrode can be formed as a continuous and adjacent film extending across the first and second emitting regions, and the first and second non-emitting regions. This continuous structure simplifies manufacturing and enhances optical uniformity. A color filter CF can be disposed above the repair portion and between the repair portion and the reflective electrode. The color filter CF can extend laterally beyond the boundary of the repair portion and can provide thermal or optical shielding during laser repair. For example, the color filter CF can be configured to absorb laser energy used to break a short circuit between the data branch and the reference branch. The data branch and the reference branch can be spaced apart and wired into each sub-pixel, wherein the data branch and the reference branch can overlap with corresponding first and second repair portions located in the first non-emitting region.

[0240] In some configurations, as seen in the plan view, the first repair section RPP1 may at least partially overlap with the data branch, while the second repair section RPP2 may at least partially overlap with the reference branch. These overlapping areas can be designed as laser access points to isolate short circuits. Additionally, to maintain electrical continuity after disconnection, a bonding line WDL can be formed between the pixel electrode in the first sub-pixel and the circuit region in the second sub-pixel. The circuit region may include thin-film transistors or similar driving components. The bonding line may include bonding points, which may be located near the circuit region and may overlap with the boundary of the circuit region in the plan view (see [reference]). Figure 10 Solder joints can be used as locations for establishing electrical bridges between subpixels during post-manufacturing repair.

[0241] Since the display device according to this disclosure can extract light even in non-light-emitting areas through reflective portions (or first reflective portions and second reflective portions) disposed inside and outside each of the multiple sub-pixels, it can have the same luminous efficiency or a higher degree of luminous efficiency even with lower power compared to a display device that does not have reflective portions inside and outside each of the multiple sub-pixels, thereby reducing overall power consumption.

[0242] The effects obtained from this disclosure are not limited to those mentioned above, and other effects not mentioned will be apparent to those skilled in the art from the description.

[0243] The various embodiments described above can be combined to provide further embodiments. Based on the detailed description above, these and other changes can be made to the embodiments. Generally, the terminology used in the appended claims should not be construed as limiting the claims to the specific embodiments disclosed in the specification and claims, but should be interpreted to include all possible embodiments and the full scope of equivalents conferred by these claims. Therefore, the claims are not limited to this disclosure.

[0244] Cross-reference to related applications

[0245] This application claims the benefit of Korean Patent Application No. 10-2024-0200171, filed on December 30, 2024, which is incorporated herein by reference as if fully set forth herein.

Claims

1. A display device, the display device comprising: A substrate, the substrate comprising a plurality of pixels having a plurality of sub-pixels; A first non-light-emitting region is disposed on the substrate and located inside each of the plurality of sub-pixels; A second non-light-emitting region is connected to the first non-light-emitting region and is located between the plurality of sub-pixels; The light-emitting region is adjacent to each of the first non-light-emitting region and the second non-light-emitting region and is located inside each of the plurality of sub-pixels; as well as The repair section is disposed in the first non-light-emitting area.

2. The display device according to claim 1, wherein, The light-emitting region in each of the plurality of sub-pixels includes: First luminescent area; First connecting part; The second light-emitting area is spaced apart from the first light-emitting area and is connected to the first light-emitting area through the first connecting portion; Second connecting part; A third light-emitting region, which is spaced apart from the second light-emitting region and connected to the second light-emitting region via the second connecting portion, and The first non-light-emitting area is disposed between the first light-emitting area and the second light-emitting area, and between the second light-emitting area and the third light-emitting area.

3. The display device according to claim 2, wherein, The repair part is disposed in the first non-light-emitting region located between the second light-emitting region and the third light-emitting region.

4. The display device according to claim 2, wherein, In the plan view, the width of the first connecting portion is narrower than the width of the first light-emitting area.

5. The display device according to claim 2, wherein, The substrate includes: Data branch, the data branch being connected to each of the plurality of sub-pixels; and A reference branch, spaced apart from the data branch and connected to each of the plurality of sub-pixels; and The repair section includes: A first repair section, which overlaps with the data branch section; and The second repair section overlaps with the reference branch section.

6. The display device according to claim 5, wherein, The data branch and the reference branch each partially overlap with the light-emitting area, and both the data branch and the reference branch are made of transparent conductive material.

7. The display device according to claim 5, wherein, The data branch is disposed on the first repair section, and the reference branch is disposed on the second repair section.

8. The display device according to claim 7, wherein, The width of the first repair section is wider than the width of the data branch, and the width of the second repair section is wider than the width of the reference branch.

9. The display device according to claim 1, further comprising: A first planarization layer is disposed on the substrate; A second planarization layer is disposed on the first planarization layer and has the same refractive index as the first planarization layer; A first reflective portion is disposed on the second planarization layer and is inclined relative to the first non-light-emitting area; as well as The second reflective portion is disposed at an angle relative to the second non-light-emitting area.

10. The display device according to claim 9, wherein, Each of the plurality of sub-pixels includes: A pixel electrode, wherein the pixel electrode is disposed on the second planarization layer; An organic light-emitting layer, the organic light-emitting layer being on the pixel electrode; and The reflective electrode is located on the organic light-emitting layer. The first reflective portion and the second reflective portion are part of the reflective electrode.

11. The display device according to claim 1, wherein, The width of the repaired area is narrower than the width of the first non-luminous area.

12. The display device according to claim 10, further comprising a color filter disposed between the repair portion and the reflective electrode.

13. The display device according to claim 12, wherein, The width of the color filter is greater than the width of the repair section.

14. The display device according to claim 5, wherein, The second connecting part is disposed between the first repair part and the second repair part.

15. The display device according to claim 5, wherein, The first repair portion or the second repair portion is configured to be spaced apart from the second connecting portion by a first distance.

16. The display device according to claim 5, wherein, The substrate also includes data lines electrically connected to the data branch, and The data line is located in the first non-light-emitting area and is spaced a second distance away from the first repair part.

17. The display device according to claim 5, further comprising a color filter overlapping the second connecting portion, the first repair portion and the second repair portion.

18. The display device according to claim 17, wherein, The color filter covers the first repair portion and the second repair portion between the second connection portion and the substrate.

19. The display device according to claim 2, wherein, The plurality of pixels includes a first pixel and a second pixel located above the first pixel in a first direction. Wherein, the first pixel includes a first sub-pixel. Wherein, the second pixel includes another first sub-pixel located above the first sub-pixel of the first pixel in the first direction. The first sub-pixel includes a pixel electrode partially disposed in the first light-emitting region. The other first sub-pixel includes a circuit region disposed between the third light-emitting region and the first light-emitting region of the first sub-pixel, and The substrate further includes bonding lines connecting the pixel electrode of the first sub-pixel and the circuit region of the other first sub-pixel.

20. The display device according to claim 19, wherein, The welding line includes welding points that overlap with the circuit region of the other first sub-pixel.

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