Display device

Abstract

A display device includes a display panel including first and second signal pads disposed at one side and the other side of a center axis extending in a first direction, respectively, and first and second fixed pads spaced apart from each other with the first and second signal pads interposed therebetween, and a flexible film including connection pads overlapping the signal pads and first and second alignment pad groups spaced apart from each other with the connection pads interposed therebetween. The first alignment pad group includes n first alignment pads arranged in the first direction, the second alignment pad group includes n second alignment pads corresponding to the n first alignment pads, and a distance between corresponding first and second alignment pads decreases as their distance from a display area decreases.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to and all benefits arising therefrom of Korean Patent Application No. 10-2020-0086859, filed on July 14, 2020, the contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to display devices. More specifically, this disclosure relates to display devices including alignment pads. Background Technology

[0004] Display devices may include two or more electronic components. Display devices such as mobile phones, laptop computers, and televisions may include electronic components such as circuit boards and display panels for displaying images. Summary of the Invention

[0005] In display devices, electronic components are electrically connected to each other via connections between pads. However, when using pads to connect two electronic components to each other, process errors (e.g., misalignment) may occur, and therefore, the reliability of the connection between the electronic components may be reduced.

[0006] Embodiments of this disclosure provide a display device in which the positional relationship of misaligned pads can be quickly checked using alignment pads included in a flexible film.

[0007] Embodiments of the present invention provide a display device comprising a display panel and a flexible film, wherein the display panel defines a display area and a non-display area. In one embodiment, the display panel includes: a plurality of first signal pads disposed in the non-display area, inclined relative to an imaginary central axis extending in a first direction, and disposed on one side of the imaginary central axis; a plurality of second signal pads disposed in the non-display area, inclined relative to the imaginary central axis, and disposed on the other side of the imaginary central axis; a first fixed pad; and a second fixed pad spaced apart from the first fixed pad in a second direction substantially perpendicular to the first direction, with the first and second signal pads interposed between the first and second fixed pads. In another embodiment, the flexible film includes: a plurality of first connecting pads overlapping the first signal pads; a plurality of second connecting pads overlapping the second signal pads; a first alignment pad group; and a second alignment pad group spaced apart from the first alignment pad group in the second direction, with the first and second connecting pads interposed between the first and second alignment pad groups. In such an implementation, the first alignment pad group includes n first alignment pads arranged in a first direction, and the second alignment pad group includes n second alignment pads corresponding to the n first alignment pads, wherein the distance between the corresponding first alignment pads and second alignment pads decreases as their distance from the display area decreases. In such an implementation, the first fixed pad overlaps with one of the n first alignment pads, and the second fixed pad overlaps with one of the n second alignment pads, where n is an integer equal to or greater than 3.

[0008] In the implementation, the first connection pad can completely overlap with the first signal pad, and the second connection pad can completely overlap with the second signal pad.

[0009] In one implementation, the inclination of the imaginary line connecting the ends of the n first aligned pads adjacent to the imaginary central axis can correspond to the inclination angle of the first connected pad, and the inclination of the imaginary line connecting the ends of the n second aligned pads adjacent to the imaginary central axis can correspond to the inclination angle of the second connected pad.

[0010] In one implementation, the n first alignment pads can be symmetrical with respect to the n second alignment pads relative to an imaginary central axis.

[0011] In an implementation, the distance between the corresponding first alignment pad and the second alignment pad can be decreased sequentially with a tolerance of about 3 micrometers or greater and about 4 micrometers or less as their distance from the display area decreases.

[0012] In the implementation, the first fixed pad and the second fixed pad can overlap with the kth first alignment pad and the kth second alignment pad, respectively. The first signal pad can completely overlap with the first connection pad, and the second signal pad can completely overlap with the second connection pad, respectively, where k is an integer equal to or greater than 2 and equal to or less than n.

[0013] In an implementation, the distance between the kth first alignment pad and the kth second alignment pad in the second direction can correspond to the distance between the first fixed pad and the second fixed pad in the second direction.

[0014] In the implementation, the first fixed pad and the second fixed pad may overlap with the (ka)th first alignment pad and the (ka)th second alignment pad, respectively. The first signal pad includes a first portion that overlaps with the first connecting pad and a second portion that does not overlap with the first connecting pad. The second signal pad includes a first portion that overlaps with the second connecting pad and a second portion that does not overlap with the second connecting pad. The second portion of the first signal pad and the second portion of the second signal pad are closer to the display area than the first portion of the first signal pad and the first portion of the second signal pad. Here, k is an integer equal to or greater than 2 and equal to or less than n, and a is an integer equal to or greater than 1 and equal to or less than k-1.

[0015] In an implementation, the distance between the kth first alignment pad and the kth second alignment pad in the second direction may be less than the distance between the first fixed pad and the second fixed pad in the second direction, and the kth first alignment pad and the kth second alignment pad may be closer to the display area than the (ka)th first alignment pad and the (ka)th second alignment pad.

[0016] In the implementation, the first fixed pad and the second fixed pad may overlap with the (k+a)th first alignment pad and the (k+a)th second alignment pad, respectively. The first signal pad includes a first portion that overlaps with the first connecting pad and a second portion that does not overlap with the first connecting pad. The second signal pad includes a first portion that overlaps with the second connecting pad and a second portion that does not overlap with the second connecting pad. The first portion of the first signal pad and the first portion of the second signal pad are closer to the display area than the second portion of the first signal pad and the second portion of the second signal pad. Here, k is an integer equal to or greater than 2 and equal to or less than n, and a is an integer equal to or greater than 1 and equal to or less than nk.

[0017] In an implementation, the distance between the kth first alignment pad and the kth second alignment pad in the second direction can be greater than the distance between the first fixed pad and the second fixed pad in the second direction, and the (k+a)th first alignment pad and the (k+a)th second alignment pad can be closer to the display area than the kth first alignment pad and the kth second alignment pad.

[0018] In some embodiments, the display device may further include a conductive adhesive layer disposed between the display panel and the flexible film.

[0019] In an implementation, each of the n first alignment pads and each of the n second alignment pads may have a rectangular shape having a first side having a first length in a first direction and a second side having a second length in a second direction. The first fixed pad may have a rectangular shape corresponding to each of the n first alignment pads, and the second fixed pad may have a rectangular shape corresponding to each of the n second alignment pads.

[0020] In one implementation, adjacent first alignment pads may be spaced apart from each other by a first length in a first direction, and adjacent second alignment pads may be spaced apart from each other by a first length in the first direction.

[0021] In one embodiment, the first signal pad and the first connection pad may be tilted relative to an imaginary central axis at an angle equal to or greater than about 5 degrees and equal to or less than about 10 degrees, and the second signal pad and the second connection pad may be tilted relative to the imaginary central axis at an angle equal to or greater than about 5 degrees and equal to or less than about 10 degrees.

[0022] Embodiments of the present invention provide a display device comprising a display panel and a flexible film, wherein the display panel defines a display area and a non-display area. In one embodiment, the display panel includes: a plurality of first signal pads disposed in the non-display area, inclined at an angle relative to an imaginary central axis extending in a first direction, and disposed on one side of the imaginary central axis; a plurality of second signal pads disposed in the non-display area, inclined at an angle relative to the imaginary central axis, and disposed on the other side of the imaginary central axis; a first fixed pad; and a second fixed pad spaced apart from the first fixed pad, wherein the first signal pads and the second signal pads are interposed between the first fixed pads and the second fixed pads. In another embodiment, the flexible film includes: a plurality of first connecting pads inclined at an angle relative to an imaginary central axis and disposed on one side of the imaginary central axis; a plurality of second connecting pads inclined at an angle relative to the imaginary central axis and disposed on the other side of the imaginary central axis; a first alignment pad group; and a second alignment pad group spaced apart from the first alignment pad group, wherein the first connecting pads and the second connecting pads are interposed between the first alignment pad group and the second alignment pad group. In such an implementation, the first alignment pad group includes n first alignment pads arranged sequentially toward the display area and spaced apart from each other by a first distance and having a first length in a first direction. The second alignment pad group includes n second alignment pads, which correspond to the n first alignment pads and have a first length in a first direction. The second distance between the m-th first alignment pad and the m-th second alignment pad and the third distance between the (m-1)-th first alignment pad and the (m-1)-th second alignment pad satisfy the following equation: tanθ=((dc) / 2) / (a+b), where θ represents the tilt angle, a represents the first distance, b represents the first length, c represents the second distance between the m-th first alignment pad and the m-th second alignment pad, and d represents the third distance between the (m-1)-th first alignment pad and the (m-1)-th second alignment pad, n is an integer equal to or greater than 3, and m is an integer equal to or greater than 1 and equal to or less than n.

[0023] In an implementation, the second distance may be less than the third distance.

[0024] In one implementation, the first fixed pad may overlap with the kth first alignment pad, and the second fixed pad may overlap with the kth second alignment pad corresponding to the kth first alignment pad.

[0025] According to embodiments of the present invention, as described herein, the flexible film includes alignment pads, which enable the inspection of the positional relationship between misaligned pads, and thus enable the automation of the process of aligning the signal pads of the display panel and the connection pads of the flexible film. Attached Figure Description

[0026] The above and other features of this disclosure will become apparent from the following detailed description taken in conjunction with the accompanying drawings:

[0027] Figure 1A This is a perspective view showing a display device according to an embodiment of the present disclosure;

[0028] Figure 1B This is an exploded perspective view showing a display device according to an embodiment of the present disclosure;

[0029] Figure 1C This is a perspective view showing a portion of a display device according to an embodiment of the present disclosure;

[0030] Figure 2A It is shown Figure 1A An exploded perspective view of a portion of the display device shown;

[0031] Figure 2B It is shown Figure 2A An enlarged view of part of EN1 of the signal pads shown;

[0032] Figure 2C It is shown Figure 2A An enlarged view of the portion EN2 showing the connection pads;

[0033] Figure 2D It is shown Figure 2A A plan view of a portion of the display device shown;

[0034] Figure 3A This is a plan view showing the alignment pads of a display device according to an embodiment of the present disclosure;

[0035] Figure 3B This is a plan view showing the alignment pads of a display device according to an embodiment of the present disclosure;

[0036] Figure 4 This is a plan view showing the fixed pads of a display device according to an embodiment of the present disclosure;

[0037] Figure 5A It is shown Figure 2A An enlarged plan view of a portion of the display device shown;

[0038] Figure 5B It is shown Figure 5A An enlarged view of EN3 showing the portion where the first alignment pad overlaps with the first fixed pad;

[0039] Figure 6A This is an enlarged view showing a portion of the display device before alignment;

[0040] Figure 6B It is shown Figure 6A An enlarged view of EN4-1 showing the portion of the first alignment pad and the first fixed pad of the display device overlapping;

[0041] Figure 6C This is an enlarged view showing the aligned display device;

[0042] Figure 6D It is shown Figure 6C An enlarged view of EN4-2 showing the portion of the first alignment pad and the first fixed pad of the display device overlapping;

[0043] Figure 7A This is a magnified view of the display device before alignment;

[0044] Figure 7B It is shown Figure 7A An enlarged view of EN5-1 showing the portion of the first alignment pad and the first fixed pad of the display device overlapping;

[0045] Figure 7C This is an enlarged view showing the aligned display device; and

[0046] Figure 7D It is shown Figure 7C The enlarged view of EN5-2 shows the portion of the first alignment pad and the first fixed pad of the display device overlapping. Detailed Implementation

[0047] The invention will now be described more fully below with reference to the accompanying drawings, in which various embodiments are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0048] In this disclosure, it should be understood that when an element or layer is referred to as being “on,” “connected to,” or “linked to” another element or layer, it may be directly on, directly connected to, or directly linked to that other element or layer, or there may be an intervening element or layer. Conversely, when an element is referred to as being “directly” on, directly connected to, or directly linked to another element, there is no intervening element.

[0049] Similar reference numerals always denote similar elements. In the accompanying drawings, the thickness, proportions, and dimensions of components are exaggerated in order to effectively describe the technical content.

[0050] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, “a,” “an,” “the,” and “at least one” do not indicate a limitation on quantity and are intended to include both the singular and the plural unless the context clearly indicates otherwise. For example, “an element” has the same meaning as “at least one element” unless the context clearly indicates otherwise. “At least one” should not be construed as limiting “a” or “an.” “Or” means “and / or.” As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. It will also be understood that, when used in this specification, the terms “comprises” and / or “comprising” or “includes” and / or “including” specify the presence of the stated features, areas, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, areas, integrals, steps, operations, elements, components, and / or groups thereof.

[0051] It should be understood that although the terms first, second, etc., may be used herein to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, layers, and / or portions should not be limited by these terms. These terms are used only to distinguish one element, component, region, layer, or portion from another element, component, region, layer, or portion. Therefore, without departing from the teachings of this disclosure, the first element, first component, first region, first layer, or first portion discussed below may be referred to as a second element, second component, second region, second layer, or second portion.

[0052] For ease of description, spatial relative terms such as “below,” “under,” “lower,” “above,” and “upper” may be used herein to describe the relationship between one element or feature and another element(s) shown in the accompanying figures.

[0053] As used herein, “about” or “approximately” includes the stated value and means within an acceptable range of deviation from the particular value as determined by a person of ordinary skill in the art, taking into account the measurement discussed and the errors associated with the measurement of the particular quantity (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, or ±5% of the stated value.

[0054] 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 this disclosure pertains. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and should not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0055] The embodiments described herein should not be construed as limited to the specific shapes of the regions shown herein, but should include, for example, shape deviations caused by manufacturing processes. For instance, regions shown or described as flat may generally have rough and / or nonlinear features. Furthermore, sharp corners shown may be rounded. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to show the precise shapes of the regions, nor are they intended to limit the scope of the present claims.

[0056] In the following, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0057] Figure 1A This is a perspective view showing a display device DD according to an embodiment of the present disclosure. Figure 1B This is an exploded perspective view showing a display device DD according to an embodiment of the present disclosure. Figure 1C This is a perspective view showing a portion of a display device DD according to an embodiment of the present disclosure. Referring below, reference will be made to... Figures 1A to 1C A detailed description of the implementation of the display device DD.

[0058] refer to Figures 1A to 1C An embodiment of the display device DD may include a display panel DP, a circuit board DC, a conductive adhesive component AF, and an optical component OPL. The display panel DP can display an image IM through its front surface FS. The front surface FS may be substantially parallel to a first direction D1 and a second direction D2 and perpendicular to a third direction D3. The front surface FS may include an effective area AA through which the image IM is displayed and a peripheral area NAA adjacent to the effective area AA. Figure 1B An embodiment in which the peripheral region NAA of the frame shape surrounds the effective region AA is shown; however, this is merely exemplary, and the present disclosure is not limited thereto. In an alternative embodiment, for example, the peripheral region NAA may be defined as being adjacent to a portion of the edge of the effective region AA.

[0059] The display panel DP may include a plurality of pixels PX arranged in an effective area AA of a base substrate BS. In one embodiment, each of the pixels PX can receive electrical signals and can display light to form an image. In another embodiment, such as... Figure 1BAs shown, pixels PX are arranged spaced apart from each other to correspond to the light-emitting areas; however, this is merely exemplary, and the present disclosure is not limited to or restricted by this. Alternatively, some components of pixels PX may be arranged to overlap each other when viewed in a plane.

[0060] The circuit board DC can be located on one side of the display panel DP and can be electrically connected to the display panel DP. The circuit board DC can generate electrical signals to apply electrical signals to the display panel DP, or it can receive and process electrical signals generated by the display panel DP.

[0061] The electrical signals generated by the circuit board DC can be applied to the pixels PX via the signal lines SL of the display panel DP. The circuit board DC may include a flexible film BF and a driving circuit DV. The flexible film BF can be attached to the display panel DP using a conductive adhesive member AF. The flexible film BF can be flexible. Therefore, the flexible film BF can be bent towards the rear surface of the display panel DP when assembled to the display panel DP.

[0062] The driving circuit DV can be disposed on or mounted on the flexible film BF. The driving circuit DV can be electrically connected to the flexible film BF via circuit lines (not shown) included in the flexible film BF. The flexible film BF can electrically connect the driving circuit DV to the display panel DP, and the driving circuit DV can generate electrical signals to be applied to the display panel DP or process electrical signals provided from the display panel DP.

[0063] In the implementation method, such as Figure 1C As shown, a conductive adhesive member AF can be disposed between the flexible film BF and the display panel DP to bond the flexible film BF to the display panel DP. The conductive adhesive member AF can be both conductive and adhesive. Therefore, the conductive adhesive member AF can physically and electrically connect the circuit board DC to the display panel DP. For example, the conductive adhesive member AF may include an anisotropic conductive adhesive film (“ACF”).

[0064] The conductive adhesive member AF can extend in a direction intersecting the signal line SL. In one embodiment, the conductive adhesive member AF can have a shape extending in the second direction D2. In another embodiment, a portion of the conductive adhesive member AF can protrude outward from the flexible film BF. In such an embodiment, the length of the conductive adhesive member AF on the display panel DP in the second direction D2 can be equal to or greater than the length of the flexible film BF in the second direction D2. Therefore, the end of the conductive adhesive member AF can be aligned with the corner of the flexible film BF, or a portion of the conductive adhesive member AF can be exposed without being covered by the flexible film BF.

[0065] The optical component OPL can be mounted on the display panel DP. The optical component OPL can cover the effective area AA. The optical component OPL can be optically transparent. Therefore, the image IM displayed through the effective area AA can be transmitted through the optical component OPL. The image IM displayed by the display panel DP can be displayed on the optical component OPL after being transmitted through it, and thus can be easily perceived by the user.

[0066] The optical component OPL can also cover at least a portion of the peripheral area NAA. The optical component OPL can reduce the reflectivity of external light. The optical component OPL can reduce the incident rate of external light onto the front surface FS of the display panel DP, or reduce the transmittance of reflected light when external light incident through the optical component OPL is reflected by components of the display panel DP. In embodiments, for example, the optical component OPL may include at least one selected from polarizing flexible films and retardation flexible films. However, this is merely exemplary, and alternatively, the optical component OPL may include a color filter. In embodiments, the optical component OPL can be attached to the front surface FS of the display panel DP via an adhesive component (not shown), or it can be formed directly on the front surface FS of the display panel DP.

[0067] The connection between the signal line SL and the circuit board DC can be achieved by aligning the conductive adhesive component AF with the pads and aligning the circuit board DC with the conductive adhesive component AF.

[0068] Figure 2A It is shown Figure 1A An exploded perspective view of a portion of the display device DD shown. Figure 2B It is shown Figure 2A The image shows an enlarged view of part EN1 of the signal pad PD. Figure 2C It is shown Figure 2A The enlarged view of part EN2 of the connecting pad LD shown. Figure 2D It is shown Figure 2A A plan view of a portion of the display device DD shown. Reference will be made below. Figures 2A to 2D A detailed description of the implementation of the display device DD.

[0069] refer to Figures 2A to 2D The implementation of the display panel DP may include a base substrate BS, pixels PX, signal lines SL, a first signal pad PD1, a second signal pad PD2, a first fixed pad AP-P1, and a second fixed pad AP-P2. For ease of explanation and description, in... Figure 2AOnly some of the pixel PX, signal line SL, first signal pad PD1, and second signal pad PD2 are shown. The base substrate BS may include the display area AA and the non-display area NAA.

[0070] Pixels PX can be arranged in the display area AA, and signal lines SL, which are connected to pixels PX and extend from the display area AA in the non-display area NAA, can be connected to the first signal pad PD1 and the second signal pad PD2, respectively. Here, the first signal pad PD1 and the second signal pad PD2 can be collectively referred to as signal pads PD. The electrical signals provided from the first signal pad PD1 and the second signal pad PD2 can be applied to each pixel PX through the signal lines SL.

[0071] The display panel DP may include a first signal pad PD1 disposed on one side relative to the central axis AX and a second signal pad PD2 disposed on the other side relative to the central axis AX. The first signal pad PD1 and the second signal pad PD2 may be configured to be tilted relative to the central axis AX at a first angle AG1. According to an embodiment, the first angle AG1 may be equal to or greater than about 5° and equal to or less than about 10°. Here, the central axis AX may be defined as an imaginary line extending in a first direction D1 at the center of the display panel DP when viewed in a plane.

[0072] The display panel DP may include a first fixed pad AP-P1 and a second fixed pad AP-P2 spaced apart from each other in the second direction D2, and a first signal pad PD1 and a second signal pad PD2 are interposed between the first fixed pad AP-P1 and the second fixed pad AP-P2. The first fixed pad AP-P1 and the second fixed pad AP-P2 may be symmetrical about each other with respect to the central axis AX. Here, the first fixed pad AP-P1 and the second fixed pad AP-P2 may be collectively referred to as fixed pad AP-P.

[0073] The flexible membrane (BF) may include a first connecting pad LD1, a second connecting pad LD2, a line SL-F connected to each of the first connecting pad LD1 and the second connecting pad LD2, a first alignment pad group APG1, and a second alignment pad group APG2 spaced apart from the first alignment pad group APG1, with the first connecting pad LD1 and the second connecting pad LD2 interposed between the first alignment pad group APG1 and the second alignment pad group APG2. Here, the first connecting pad LD1 and the second connecting pad LD2 may be collectively referred to as connecting pad LD. The first connecting pad LD1 may be disposed on one side relative to the central axis AX, and the second connecting pad LD2 may be disposed on the other side relative to the central axis AX.

[0074] The flexible film BF may include a first alignment pad group APG1 and a second alignment pad group APG2 spaced apart from the first alignment pad group APG1 in a second direction D2, and a first connecting pad LD1 and a second connecting pad LD2 are inserted between the first alignment pad group APG1 and the second alignment pad group APG2. Here, the first alignment pad group APG1 and the second alignment pad group APG2 can be collectively referred to as alignment pad group AP-F.

[0075] Each of the first signal pad PD1 and the second signal pad PD2 can be configured to be inclined at a first angle AG1 relative to an imaginary line AX1 that is substantially parallel to the central axis AX. According to an embodiment, each of the first connection pad LD1 and the second connection pad LD2 can be configured to be inclined at a second angle AG2 relative to an imaginary line AX2 that is substantially parallel to the central axis AX, and completely overlap with the corresponding first signal pad PD1 of the first signal pad PD1 or the corresponding second signal pad PD2 of the second signal pad PD2.

[0076] In an embodiment, the display device DD may include a first overlapping pad PLD1 defined by the overlapping portion of a first signal pad PD1 and a first connection pad LD1 that completely overlaps with the first signal pad PD1, and a second overlapping pad PLD2 defined by a second signal pad PD2 and the overlapping portion of a second connection pad LD2 that completely overlaps with the second signal pad PD2.

[0077] Includes the m-th first alignment pad SAP1-m in the first alignment pad group APG1 (reference) Figure 3A It can overlap with the first fixed pad AP-P1, and includes the m-th second alignment pad SAP2-m in the second alignment pad group APG2 (see reference). Figure 3A This can overlap with the second fixed pad AP-P2. See below for reference. Figure 5A and Figure 5B A more detailed description of the fixed pads AP-P1 and AP-P2 and the m-th first alignment pad SAP1-m and m-th second alignment pad SAP2-m included in alignment pad groups APG1 and APG2 (see reference). Figure 3A The relationship between ).

[0078] Figure 3A and Figure 3B This is a plan view showing a first alignment pad group APG1 and a second alignment pad group APG2 included in a display device DD according to an embodiment of the present disclosure.

[0079] refer to Figure 3AIn an embodiment, the flexible film BF may include a first alignment pad group APG1 and a second alignment pad group APG2 spaced apart from the first alignment pad group APG1 in a second direction D2, and connect pads LD1 and LD2 (see reference). Figure 2A It is inserted between the first alignment pad group APG1 and the second alignment pad group APG2. For ease of explanation and description, in... Figure 3A The connection pads LD1 and LD2, which are located between the first alignment pad group APG1 and the second alignment pad group APG2, are omitted (see reference). Figure 2A ).

[0080] The first alignment pad group APG1 may include n first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ..., and SAP1-n, and the second alignment pad group APG2 may include n second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ..., and SAP2-n. The first alignment pad group APG1 and the second alignment pad group APG2 may be symmetrical to each other with respect to the central axis AX. Here, n is an integer equal to or greater than 3, and k is an integer equal to or greater than 2 and equal to or less than n.

[0081] The first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ... and SAP1-n adjacent to each other, and the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ... and SAP2-n adjacent to each other, can be arranged to be spaced apart from each other by tolerance or predetermined distance in the first direction D1.

[0082] Alignment pads can be aligned towards the display area AA in the following order: the first first alignment pad SAP1-1 and the first second alignment pad SAP2-1, the second first alignment pad SAP1-2 and the second second alignment pad SAP2-2, and the third first alignment pad SPA1-3 and the third second alignment pad SPA2-3. (Reference) Figure 2A The pads are arranged sequentially. That is, the m-th first alignment pad SAP1-m and the m-th alignment pad SAP2-m can be closer to the display area AA (reference) than the (m-1)-th first alignment pad (not shown) and the (m-1)-th second alignment pad (not shown). Figure 2A In this disclosure, m is an integer equal to or greater than about 1 and equal to or less than n, and m may be the same as or different from k.

[0083] In the first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ... and SAP1-n, and the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ... and SAP2-n, the m-th first alignment pad SAP1-m and the m-th second alignment pad SAP2-m can correspond to each other. The m-th first alignment pad SAP1-m and the m-th second alignment pad SAP2-m corresponding to the m-th first alignment pad SAP1-m can be spaced apart from each other by a distance Lm in the second direction D2. The distances L1, L2, Lk, Lm, and Ln between the first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ..., and SAP1-n and the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ..., and SAP2-n can be along the first direction D1 toward the display area AA (reference). Figure 2A The tolerances decrease sequentially. According to the embodiment, the distances L1, L2, ..., Lk, ..., Lm, ..., and Ln between the first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ..., and SAP1-n and the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ..., and SAP2-n in the second direction D2 can be along the first direction D1 towards the display area AA (reference). Figure 2A The distances are reduced sequentially with a tolerance or distance equal to or greater than about 3 micrometers and equal to or less than about 4 micrometers. In one embodiment, for example, the distance L2 between the second first alignment pad SAP1-2 and the second second alignment pad SAP2-2 may be reduced by about 3 micrometers or more and about 4 micrometers or less relative to the distance L1 between the first first alignment pad SAP1-1 and the first second alignment pad SAP2-1, and the distance Lm between the m-th first alignment pad SAP1-m and the m-th second alignment pad SAP2-m in the second direction D2 may be reduced by about 3 micrometers or more and about 4 micrometers or less relative to the distance between the (m-1)-th first alignment pad (not shown) and the (m-1)-th second alignment pad (not shown) in the second direction D2 (not shown).

[0084] Each of the first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ... and SAP1-n, and each of the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ... and SAP2-n, may have a rectangular shape having a first side with a first length DT1 in a first direction D1 and a second side with a second length DT2 in a second direction D2.

[0085] The third length DT3 between the first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ... and SAP1-n, spaced apart from each other in the first direction D1, and the third length DT3 between the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ... and SAP2-n, spaced apart from each other in the first direction D1, can be substantially the same.

[0086] The line CL1 connecting the ends of the first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ..., and SAP1-n, and the line CL2 connecting the ends of the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ..., and SAP2-n, can be tilted at a third angle AG3 relative to imaginary lines AX3 and AX4, which are substantially parallel to the central axis AX. The tilt angle of line CL1 corresponds to the tilt angle of the first connection pad LD1. The tilt angle of line CL2 corresponds to the tilt angle of the second connection pad LD2. The third angle AG3 can be related to the first angle AG1 (reference). Figure 2B Basically the same, the first angle AG1 is set relative to an imaginary line AX1 that is substantially parallel to the central axis AX (reference). Figure 2B The first signal pad PD1 and the first connection pad LD1 are tilted. The third angle AG3 can be defined by the second angle AG2 (reference). Figure 2C The corresponding angle, the second angle AG2, is set relative to an imaginary line AX2 that is substantially parallel to the central axis AX (reference). Figure 2C The tilted second signal pad PD2 and the second connection pad LD2 are defined.

[0087] First angle AG1 (reference) Figure 2BThe third length DT3 in the first direction D1 between the first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ... and SAP1-n adjacent to each other, and between the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ... and SAP2-n adjacent to each other, and between the first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ... and SAP1- The first length DT1 of the edge of n and the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ... and SAP2-n on the first direction D1, the distance Lm between the m-th first alignment pad SAP1-m and the m-th second alignment pad SAP2-m corresponding to the m-th first alignment pad SAP1-m, and the distance between the (m-1)-th first alignment pad (not shown) and the (m-1)-th second alignment pad (not shown) can satisfy the following equation 1.

[0088] [Equation 1]

[0089] tanθ=((dc) / 2) / (a+b)

[0090] In Equation 1, "θ" represents the first angle AG1 (reference). Figure 2B“a” represents the third length DT3 in the first direction D1 between the first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ... and SAP1-n, and between the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ... and SAP2-n, and between the first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ... and SAP2-n and the second alignment pads SAP1-m, SAP1-k, ..., SAP1-m, ... and SAP2-n. AP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ..., and SAP2-n have a first length DT1 on the edge in the first direction D1. "c" represents the distance Lm between the m-th first alignment pad SAP1-m and the m-th second alignment pad SAP2-m corresponding to the m-th first alignment pad SAP1-m, and "d" represents the distance (not shown) between the (m-1)-th first alignment pad (not shown) and the (m-1)-th second alignment pad (not shown) corresponding to the (m-1)-th first alignment pad (not shown). Since it includes the first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ..., and SAP1-n satisfying Equation 1, and the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ..., and SAP2-n, the display panel DP (reference) Figure 2D It can be used with flexible membrane BF (reference) Figure 2D The first signal pad PD1 overlaps with the first connection pad LD1, and the second signal pad PD2 overlaps with the second connection pad LD2, without separately measuring the distance between the first signal pad PD1 and the second signal pad PD2 arranged in the second direction D2, or the distance between the first connection pad LD1 and the second connection pad LD2 arranged in the second direction D2.

[0091] The first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ... and SAP1-n, and the second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ... and SAP2-n may include a k-th first alignment pad SAP1-k and a k-th second alignment pad SAP2-k, respectively used as reference pads. The distance Lk between the k-th first alignment pad SAP1-k and the k-th second alignment pad SAP2-k in the second direction D2 can be equal to the distance Lp between the first fixed pad AP-P1 and the second fixed pad AP-P2 in the second direction D2 (reference). Figure 4 They are basically the same.

[0092] The first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ..., and SAP1-n may include the (ka)th first alignment pad SAP1-(ka) (where a is an integer equal to or greater than 1 and equal to or less than k-1) and the (k+a')th first alignment pad SAP1-(k+a') (where a' is an integer equal to or greater than 1 and equal to or less than nk). The second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ..., and SAP2-n may include the (ka)th second alignment pad SAP2-(ka) corresponding to the (ka)th first alignment pad SAP1-(ka) and the (k+a')th second alignment pad SAP2-(k+a') corresponding to the (k+a')th first alignment pad SAP1-(k+a').

[0093] exist Figure 3A The diagram shows n first alignment pads SAP1-1, SAP1-2, ..., SAP1-k, ..., SAP1-m, ..., and SAP1-n, and n second alignment pads SAP2-1, SAP2-2, ..., SAP2-k, ..., SAP2-m, ..., and SAP2-n. In the following text, for ease of explanation and description, as... Figure 3B As shown, five first alignment pads SAP1-1, SAP1-2, SAP1-3, SAP1-4 and SAP1-5 and five second alignment pads SAP2-1, SAP2-2, SAP2-3, SAP2-4 and SAP2-5 will be described as representative examples.

[0094] Used as Figure 3A The k-th first alignment pad SPA1-k and the k-th second alignment pad SPA2-k in the reference pads can respectively correspond to Figure 3B The third first alignment pad SPA1-3 of the first alignment pad group APG1 and the third second alignment pad SPA2-3 of the second alignment pad group APG2. Figure 3A The first first alignment pad SAP1-1 to the (k-1)th first alignment pad SAP1-(k-1) and the (k+1)th first alignment pad SAP1-(k+1) to the nth first alignment pad SAP1-n can respectively correspond to Figure 3B The first first alignment pad SAP1-1, the second first alignment pad SAP1-2, the fourth first alignment pad SAP1-4, and the fifth first alignment pad SAP1-5, and Figure 3AThe first second alignment pad SAP2-1 to the (k-1)th second alignment pad SAP2-(k-1) and the (k+1)th second alignment pad SAP2-(k+1) to the nth second alignment pad SAP2-n can respectively correspond to Figure 3B The first second alignment pad SAP2-1 and the second second alignment pad SAP2-2, as well as the fourth second alignment pad SAP2-4 and the fifth second alignment pad SAP2-5.

[0095] Figure 4 This is an enlarged view showing the fixed pad AP-P of the display device DD according to an embodiment of the present disclosure. Reference Figure 4 The first fixed pad AP-P1 and the second fixed pad AP-P2 can be spaced apart from each other in the second direction D2. Figure 4 The distance Lp between the first fixed pad AP-P1 and the second fixed pad AP-P2 shown in the second direction D2 can be equal to the distance between the third first alignment pads SPA1-3 (see reference). Figure 3B ) and the third second alignment pad SPA2-3 (reference) Figure 3B The distance L3 between them in the second direction D2 (reference) Figure 3B They are essentially the same. The first fixed pad AP-P1 and the second fixed pad AP-P2 can have pads SAP1-1, SAP1-2, SAP1-3, SAP1-4 and SAP1-5 (see reference). Figure 3B The rectangular shape of the second alignment pads SAP2-1, SAP2-2, SAP2-3, SAP2-4, and SAP2-5 (see reference). Figure 3B The rectangle shape corresponding to the rectangle shape.

[0096] Figure 5A It is shown Figure 2A An enlarged plan view of a portion of the display device DD shown, and Figure 5B It is shown Figure 5A Enlarged view EN3 showing the portion of the first alignment pads SAP1-1, SAP1-2, SAP1-3, SAP1-4, and SAP1-5 overlapping with the first fixed pad AP-P1. For ease of explanation and description, only some of the first signal pads PD1 in the first alignment pad group APG1, the first fixed pad AP-P1, the signal pads PD1 and PD2, and some of the first connection pads LD1 in the connection pads LD1 and LD2 are shown and described.

[0097] refer to Figure 5A and Figure 5BIn the display device DD according to an embodiment, the third first alignment pad SAP1-3 of the first alignment pad group APG1 can completely overlap with the first fixed pad AP-P1, and the signal pad PD (e.g., the first signal pad PD1) can completely overlap with the first connection pad LD1. Complete overlap between the signal pad PD and the first connection pad LD1 can mean that the signal pad PD completely overlaps with the first connection pad LD1 without being exposed.

[0098] Users can check whether the signal pad PD completely overlaps with the first connection pad LD1 based on the overlap relationship between the third first alignment pad SAP1-3 and the first fixed pad AP-P1. In an implementation, when the first fixed pad AP-P1 overlaps with the third first alignment pad SAP1-3 used as a reference pad, it can be checked whether the signal pad PD completely overlaps with the first connection pad LD1.

[0099] Figure 6A This is an enlarged view showing the display device DD-a' before alignment. Figure 6B It is shown Figure 6A An enlarged view of EN4-1 showing the portion of the first alignment pads SAP1-1, SAP1-2, SAP1-3, SAP1-4, and SAP1-5 of the display device DD-a' that overlaps with the first fixed pad AP-P1. Figure 6C This is an enlarged view showing the aligned display device DD-a. Figure 6D It is shown Figure 6C The image shows an enlarged view (EN4-2) of the portion of the first alignment pads SAP1-1, SAP1-2, SAP1-3, SAP1-4, and SAP1-5 of display device DD-a that overlap with the first fixed pad AP-P1. Reference will be made below. Figures 6A to 6D The following describes in detail the display device DD-a' before alignment and the display device DD-a after alignment. In the following text, the alignment process will be omitted. Figures 6A to 6D Zhongyu Figures 1A to 1C , Figures 2A to 2D , Figure 3A , Figure 3B , Figure 4 , Figure 5A and Figure 5B Any repeated detailed descriptions of the same components as those of the original components, and the main description will be similar to... Figures 1A to 1C , Figures 2A to 2D , Figure 3A , Figure 3B , Figure 4 , Figure 5A and Figure 5B The characteristics are different.

[0100] refer to Figures 6A to 6DThe implementation of the display device DD-a may include a first part 1AA and a second part 2AA. In the first part 1AA, the first connection pad LD1 overlaps with the signal pad PD (e.g., the first signal pad PD1). In the second part 2AA, the first connection pad LD1 does not overlap with the signal pad PD, and the first fixed pad AP-P1 may overlap with the first first alignment pad SAP1-1 or the second first alignment pad SAP1-2 of the first alignment pad group APG1 instead of the third first alignment pad SAP1-3.

[0101] refer to Figure 6A and Figure 6B When the flexible membrane BF (reference) Figure 2A ) Set the display panel DP of the previously aligned display device DD-a' (refer to) Figure 2A When the first connection pad LD1 is applied, it may include an overlapping region SAA that overlaps with the signal pad PD (e.g., the first signal pad PD1) and a non-overlapping region EAA that does not overlap with the signal pad PD. The overlapping region SAA may be closer to the first alignment pad group APG1 than the non-overlapping region EAA.

[0102] The third first alignment pad SAP1-3, serving as a reference pad in the first alignment pad group APG1, may include a non-overlapping portion EA-a that does not overlap with the first fixed pad AP-P1. The non-overlapping portion EA-a may be closer to the first connection pad LD1 than the overlapping portion (not shown). The third first alignment pad SAP1-3 and the third second alignment pad SAP2-3 (reference pads) serve as references. Figure 3B The distance L3 between (reference) Figure 3B It can be smaller than the first fixed pad AP-P1 and the second fixed pad AP-P2 (see reference). Figure 4 The distance Lp between (reference) Figure 4 ).

[0103] refer to Figure 6C and Figure 6D Flexible membrane BF (reference) Figure 2A It can be moved toward the display area AA in the first direction D1 to correct. Figure 6A and Figure 6B The misalignment between the first connection pad LD1 and the signal pad PD (e.g., the first signal pad PD1) causes the first fixed pad AP-P1 to completely overlap with the second first alignment pad SAP1-2. After the flexible film BF moves to allow the first fixed pad AP-P1 to overlap with the second first alignment pad SAP1-2, the first connection pad LD1 may include a first portion 1AA that overlaps with the signal pad PD and a second portion 2AA that does not overlap with the signal pad PD. The second portion 2AA may be closer to the display area AA than the first portion 1AA.

[0104] In other words, when the non-overlapping portion EA-a of the third first alignment pad SAP1-3, which does not overlap with the first fixed pad AP-P1, is set closer to the first connecting pad LD1 than the overlapping portion (not shown), the flexible film BF can move toward the display area AA in the first direction D1 to allow the first fixed pad AP-P1 to completely overlap with one of the first first alignment pads SAP1-1 and the second first alignment pad SAP1-2. Therefore, the signal pad PD (e.g., the first signal pad PD1) and the first connecting pad LD1 can be aligned to completely overlap each other without separately measuring all the first connecting pads LD1 and the second connecting pad LD2 (see reference) arranged in the second direction D2. Figure 2A The length of the first signal pads PD1 and the second signal pads PD2 arranged on the second direction D2 (reference) Figure 2A The length of ).

[0105] Figure 7A This is an enlarged view showing the display device DD-b' before alignment. Figure 7B It is shown Figure 7A An enlarged view of EN5-1 showing the portion of the first alignment pads SAP1-1, SAP1-2, SAP1-3, SAP1-4, and SAP1-5 of the display device DD-b' that overlaps with the first fixed pad AP-P1. Figure 7C This is an enlarged view showing the aligned display device DD-b. Figure 7D It is shown Figure 7C The image shows an enlarged view of EN5-2 of the portion of the first alignment pads SAP1-1, SAP1-2, SAP1-3, SAP1-4, and SAP1-5 of the display device DD-b that overlap with the first fixed pad AP-P1. Reference will be made below. Figures 7A to 7D The following describes in detail the display device DD-b before alignment and the display device DD-b after alignment. In the following text, the alignment process will be omitted. Figures 7A to 7D In and Figures 1A to 1C , Figures 2A to 2D , Figure 3A , Figure 3B , Figure 4 , Figure 5A , Figure 5B and Figures 6A to 6D Any repeated detailed descriptions of the same components as those of the original components, and the main description will be similar to... Figures 1A to 1C , Figures 2A to 2D , Figure 3A , Figure 3B , Figure 4 , Figure 5A , Figure 5B and Figures 6A to 6D The characteristics are different.

[0106] refer to Figures 7A to 7D An implementation of the display device DD-b may include a first part 1AA-1 and a second part 2AA-1. In the first part 1AA-1, the first connection pad LD1 overlaps with the signal pad PD (e.g., the first signal pad PD1). In the second part 2AA-1, the first connection pad LD1 does not overlap with the signal pad PD, and the first fixed pad AP-P1 may overlap with one of the fourth first alignment pads SAP1-4 and the fifth first alignment pads SAP1-5 of the first alignment pad group APG1 instead of the third first alignment pad SAP1-3. In such an implementation, with Figures 6A to 6D The implementation method is different. Compared with the second part 2AA-1, the first part 1AA-1 can be closer to the display area AA.

[0107] refer to Figure 7A and Figure 7B When the flexible membrane BF (reference) Figure 2A When the first alignment pad LD1 is set on the display panel DP of the display device DD-a' before alignment, it may include an overlapping area SAA-1 that overlaps with the signal pad PD (e.g., the first signal pad PD1) and a non-overlapping area EAA-1 that does not overlap with the signal pad PD. The non-overlapping area EAA-1 may be closer to the first alignment pad group APG1 than the overlapping area SAA-1.

[0108] The third first alignment pad SAP1-3 of the first alignment pad group APG1 may include a non-overlapping portion EA-b that does not overlap with the first fixed pad AP-P1. The overlapping portion (not shown) may be closer to the first connection pad LD1 than the non-overlapping portion EA-b. The third first alignment pad SAP1-3 and the third second alignment pad SAP2-3 (reference pads) serve as reference pads. Figure 3B The distance L3 between (reference) Figure 3B It can be larger than the first fixed pad AP-P1 and the second fixed pad AP-P2 (see reference). Figure 4 The distance Lp between (reference) Figure 4 ).

[0109] refer to Figure 7C and Figure 7D The flexible film BF can be positioned in the first direction D1 away from the display area AA (reference). Figure 2A Move in the direction of ) to correct Figure 7A and Figure 7BThe misalignment between the first connection pad LD1 and the signal pad PD (e.g., the first signal pad PD1) causes the first fixed pad AP-P1 to completely overlap with the fourth first alignment pad SAP1-4. When the flexible film BF moves in such a manner that the first fixed pad AP-P1 overlaps with the fourth first alignment pad SAP1-4, the first connection pad LD1 may include a first portion 1AA-1 that completely overlaps with the signal pad PD and a second portion 2AA-1 that does not overlap with the signal pad PD. The second portion 2AA-1 may be further away from the display area AA (reference) in the first direction D1 than the first portion 1AA-1. Figure 2A ).

[0110] In this implementation, when the overlapping portion (not shown) of the third first alignment pad SAP1-3 overlapping with the first fixed pad AP-P1 is positioned closer to the first connection pad LD1 than the non-overlapping portion EA-b, the flexible film BF can move in the first direction D1 in a direction away from the display area AA to allow the first fixed pad AP-P1 to completely overlap with one of the fourth first alignment pads SAP1-4 and the fifth first alignment pads SAP1-5. Therefore, the signal pads PD (e.g., the first signal pad PD1) and the first connection pads LD1 can completely overlap each other without individually measuring all the first connection pads LD1 and the second connection pads LD2 (see reference) arranged in the second direction D2. Figure 2A The length of the first signal pads PD1 and the second signal pads PD2 arranged on the second direction D2 (reference) Figure 2A The length of ).

[0111] According to an embodiment, the display panel may include a first fixed pad and a second fixed pad, and the flexible film may include a first alignment pad and a second alignment pad. The first alignment pad and the second alignment pad are arranged such that the distance between the first alignment pad and the second alignment pad in a second direction decreases as the distance from the display area decreases. The overlap relationship between the signal pads and the connection pads can be checked based on the overlap relationship between the kth alignment pad used as a reference pad among the fixed pads and alignment pads. Therefore, the display panel and the flexible film can be aligned with each other without separately measuring the lengths of all the first connection pads and the second connection pads arranged in the second direction, as well as the lengths of all the first signal pads and the second signal pads arranged in the second direction.

[0112] This invention should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

[0113] While the application has been particularly shown and described with reference to embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit or scope of the application as defined by the appended claims.

Claims

1. A display device, including: A display panel, wherein the display panel defines a display area and a non-display area, wherein the display panel includes: Multiple first signal pads are disposed in the non-display area, inclined relative to an imaginary central axis extending in a first direction, and disposed on one side of the imaginary central axis; Multiple second signal pads are disposed in the non-display area, inclined relative to the imaginary central axis, and disposed on the other side of the imaginary central axis; First fixed pad; and A second fixed pad is spaced apart from the first fixed pad in a second direction perpendicular to the first direction, and the first signal pad and the second signal pad are interposed between the first fixed pad and the second fixed pad; and Flexible membranes, including: Multiple first connection pads overlap with the first signal pad; Multiple second connection pads overlap with the second signal pads; First aligned pad group; and The second alignment pad group is spaced apart from the first alignment pad group in the second direction, and the first connection pad and the second connection pad are inserted between the first alignment pad group and the second alignment pad group. in, The first alignment pad group includes n first alignment pads arranged in the first direction. The second alignment pad group includes n second alignment pads corresponding to the n first alignment pads. The distance between corresponding first alignment pads and second alignment pads among the n first alignment pads and the n second alignment pads decreases as their distance from the display area decreases. The first fixed pad overlaps with one of the n first alignment pads. The second fixed pad overlaps with one of the n second alignment pads. n is an integer equal to or greater than 3.

2. The display device according to claim 1, wherein, The first connection pads completely overlap with the first signal pads, and The second connection pads completely overlap with the second signal pads.

3. The display device according to claim 1, wherein, The inclination of the imaginary line connecting the ends of the n first aligned pads adjacent to the imaginary central axis corresponds to the inclination angle of the first connected pads, and The inclination of the imaginary line connecting the ends of the n second aligned pads adjacent to the imaginary central axis corresponds to the inclination angle of the second connected pads.

4. The display device according to claim 1, wherein, The n first alignment pads are symmetrical with respect to the imaginary central axis and the n second alignment pads.

5. The display device according to claim 1, wherein, The distance between the corresponding first alignment pad and the second alignment pad decreases sequentially with a tolerance of 3 micrometers or greater and 4 micrometers or less as their distance from the display area decreases.

6. The display device according to claim 1, wherein, The first fixed pad and the second fixed pad overlap with the kth first alignment pad among the n first alignment pads and the kth second alignment pad among the n second alignment pads, respectively. The first signal pads completely overlap with the first connection pads. The second signal pads completely overlap with the second connection pads, and k is an integer equal to or greater than 2 and equal to or less than n.

7. The display device according to claim 6, wherein, The distance between the kth first alignment pad and the kth second alignment pad in the second direction corresponds to the distance between the first fixed pad and the second fixed pad in the second direction.

8. The display device according to claim 1, wherein, The first fixed pad and the second fixed pad overlap with the (ka)th first alignment pad and the (ka)th second alignment pad among the n first alignment pads, respectively. The first signal pad includes a first portion that overlaps with the first connection pad and a second portion that does not overlap with the first connection pad. The second signal pad includes a first portion that overlaps with the second connection pad and a second portion that does not overlap with the second connection pad. The second portion of the first signal pad and the second portion of the second signal pad are closer to the display area than the first portion of the first signal pad and the first portion of the second signal pad. k is an integer equal to or greater than 2 and equal to or less than n. a is an integer equal to or greater than 1 and equal to or less than k-1.

9. The display device according to claim 8, wherein, The distance in the second direction between the kth first alignment pad among the n first alignment pads and the kth second alignment pad among the n second alignment pads is less than the distance in the second direction between the first fixed pad and the second fixed pad, and wherein the kth first alignment pad and the kth second alignment pad are closer to the display area than the (ka)th first alignment pad and the (ka)th second alignment pad.

10. The display device according to claim 1, wherein, The first fixed pad and the second fixed pad overlap with the (k+a)th first alignment pad and the (k+a)th second alignment pad among the n first alignment pads, respectively. The first signal pad includes a first portion that overlaps with the first connection pad and a second portion that does not overlap with the first connection pad. The second signal pad includes a first portion that overlaps with the second connection pad and a second portion that does not overlap with the second connection pad. The first portion of the first signal pad and the first portion of the second signal pad are closer to the display area than the second portion of the first signal pad and the second portion of the second signal pad. k is an integer equal to or greater than 2 and equal to or less than n. a is an integer equal to or greater than 1 and equal to or less than nk.

11. The display device according to claim 10, wherein, The distance in the second direction between the kth first alignment pad among the n first alignment pads and the kth second alignment pad among the n second alignment pads is greater than the distance in the second direction between the first fixed pad and the second fixed pad, and wherein the (k+a)th first alignment pad and the (k+a)th second alignment pad are closer to the display area than the kth first alignment pad and the kth second alignment pad.

12. The display device according to claim 11, wherein, Each of the n first alignment pads and each of the n second alignment pads has a rectangular shape, the rectangular shape having a first side having a first length in the first direction and a second side having a second length in the second direction. The first fixed pad has a rectangular shape corresponding to each of the n first aligned pads, and The second fixed pad has a rectangular shape corresponding to each of the n second aligned pads.

13. A display device, including: A display panel, wherein the display panel defines a display area and a non-display area, wherein the display panel includes: Multiple first signal pads are disposed in the non-display area, inclined at an angle relative to an imaginary central axis extending in a first direction, and disposed on one side of the imaginary central axis; Multiple second signal pads are disposed in the non-display area, inclined at the tilt angle relative to the imaginary central axis, and disposed on the other side of the imaginary central axis; First fixed pad; and A second fixed pad is spaced apart from the first fixed pad, and the first signal pad and the second signal pad are interposed between the first fixed pad and the second fixed pad; and Flexible membranes, including: A plurality of first connection pads are inclined at the tilt angle relative to the imaginary central axis and are disposed on one side of the imaginary central axis; Multiple second connection pads are inclined at the tilt angle relative to the imaginary central axis and are located on the other side of the imaginary central axis; First aligned pad group; and The second alignment pad group is spaced apart from the first alignment pad group, and the first connection pad and the second connection pad are inserted between the first alignment pad group and the second alignment pad group. in, The first alignment pad group includes n first alignment pads, which are arranged sequentially toward the display area and spaced apart from each other by a first distance, and have a first length in the first direction; The second alignment pad group includes n second alignment pads, the n second alignment pads corresponding to the n first alignment pads and having the first length in the first direction. The second distance between the m-th first alignment pad and the m-th second alignment pad among the n first alignment pads, and the third distance between the (m-1)-th first alignment pad and the (m-1)-th second alignment pad among the n second alignment pads, satisfy the following equation: tanθ=((dc) / 2) / (a+b), Where θ represents the tilt angle, a represents the first distance, b represents the first length, c represents the second distance between the m-th first alignment pad and the m-th second alignment pad, and d represents the third distance between the (m-1)-th first alignment pad and the (m-1)-th second alignment pad. n is an integer equal to or greater than 3, and m is an integer equal to or greater than 2 and equal to or less than n.

14. The display device according to claim 13, wherein, The second distance is less than the third distance.

15. The display device according to claim 13, wherein, The first fixed pad overlaps with the kth first alignment pad among the n first alignment pads, and The second fixed pad overlaps with the kth second alignment pad, which corresponds to the kth first alignment pad among the n second alignment pads. Where k is an integer equal to or greater than 1 and equal to or less than n.

Images