Display device and method for manufacturing the same

Abstract

A display device is disclosed. The display device includes a window and a display panel coupled to the bottom surface of the window. The display panel has a substantially regular quadrilateral shape or a substantially rectangular shape in a plan view, and the window includes a base member and a frame layer on the bottom surface of the base member. One to three light-transmitting main alignment marks and a transmission area having a shape different from that of the display panel are defined in the frame layer, and each of the main alignment marks is arranged at a position corresponding to a vertex of the display panel or at a position corresponding to a vertex of an imaginary regular quadrilateral or an imaginary rectangle, the imaginary regular quadrilateral or the imaginary rectangle having the same center point as the display panel and being larger than the display panel.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2018-0093665 filed on August 10, 2018, in the Korean Intellectual Property Office (KIPO), the entire contents of which are incorporated herein by reference. Technical Field

[0003] Aspects of embodiments of the present disclosure relate to a display device and a method for manufacturing the display device. Prior art

[0004] Electronic devices such as smart phones, tablet computers, notebook computers, navigation systems, and smart TVs have been developed. These electronic devices generally include a display device that provides information, and may include various electronic modules in addition to the display device.

[0005] The display device is designed according to the purpose of use of the electronic device. To this end, the display device can be designed to have various shapes. Summary of the invention

[0006] Embodiments of the present disclosure may provide a display device with a reduced failure rate.

[0007] Embodiments of the present disclosure may also provide a method for manufacturing a display device capable of reducing a lamination process error.

[0008] According to an embodiment of the present disclosure, a display device includes a window and a display panel coupled to the bottom surface of the window. The display panel has a substantially regular quadrilateral shape or a substantially rectangular shape in a plan view, and the window includes a base member and a frame layer on the bottom surface of the base member. One to three light-transmitting main alignment marks and a transmission area having a shape different from that of the display panel are defined in the frame layer, and each of the main alignment marks is arranged at a position corresponding to a vertex of the display panel or at a position corresponding to a vertex of an imaginary regular quadrilateral or an imaginary rectangle, the imaginary regular quadrilateral or the imaginary rectangle having the same center point as the display panel and being larger than the display panel.

[0009] When two main alignment marks are defined in the bezel layer, the two main alignment marks may be arranged at positions corresponding to two vertices corresponding to one side edge of the display panel.

[0010] Each of the main alignment marks may overlap a vertex of the display panel.

[0011] The display panel may have a display area where pixels are arranged and a non-display area where pixels are not arranged, and the non-display area may surround the periphery of the display area in a plan view.

[0012] The display device may further include a light-transmissive sub-alignment mark defined in the bezel layer, spaced apart from the main alignment mark, and having a shape different from that of the main alignment mark.

[0013] The sub-alignment mark may overlap an edge of the display panel.

[0014] The display device may further include a light-transmissive test mark defined in the bezel layer and arranged outside the display panel.

[0015] A corner region of the display panel may have a curved shape in a plan view.

[0016] The display device may be installed in a vehicle.

[0017] The transmission area may be exposed from an interior material of the vehicle, the interior material of the vehicle may cover a portion of the bezel layer, and the primary alignment mark may overlap with the interior material of the vehicle.

[0018] According to an embodiment of the present disclosure, a display device includes a window and a display panel coupled to the bottom surface of the window. The display panel has: a display area having a substantially regular quadrilateral shape or a substantially rectangular shape in a plan view and a non-display area outside the display area. The window includes a base member and a frame layer on the bottom surface of the base member. One to three light-transmitting main alignment marks and a transmission area having a shape different from that of the display area are defined in the frame layer, and each of the main alignment marks is arranged at a position corresponding to a vertex of an imaginary regular quadrilateral or an imaginary rectangle, and the imaginary regular quadrilateral or the imaginary rectangle has the same center point as the display area and is larger than the display area.

[0019] The display panel may have a shape different from that of the display area in a plan view.

[0020] The display panel may have a substantially regular quadrilateral shape or a substantially rectangular shape in a plan view.

[0021] Each of the main alignment marks may be arranged at a position corresponding to a vertex of the display panel.

[0022] According to an embodiment of the present disclosure, a display device includes a window and a display panel coupled to a bottom surface of the window. The display panel has a shape of a regular quadrilateral having curved corner regions in a plan view or a shape of a rectangle having curved corner regions in a plan view, and the window includes a base member and a border layer on a bottom surface of the base member. One to three light-transmissive main alignment marks and a transmissive region having a shape different from that of the display panel are defined in the border layer, and each of the main alignment marks is disposed at a position corresponding to a vertex of the display panel or at a position corresponding to a vertex of a hypothetical regular quadrilateral or a hypothetical rectangle, the hypothetical regular quadrilateral or the hypothetical rectangle having the same center point as the display panel and being larger than the display panel.

[0023] According to an embodiment of the present disclosure, a display device includes a window and a display panel coupled to a bottom surface of the window. The display panel has a shape of a substantially regular polygon having n edges in a plan view, and the window includes a base member and a border layer on a bottom surface of the base member. A plurality of light-transmissive alignment marks and a transmissive region having a shape different from that of the display panel are defined in the border layer. The number of the alignment marks is n - i, where "i" is a natural number equal to or greater than 1 and less than "n", and each of the alignment marks is disposed at a position corresponding to a vertex of the display panel or at a position corresponding to a vertex of a hypothetical polygon, the hypothetical polygon having the same center point as the display panel and being larger than the display panel.

[0024] According to an embodiment of the present disclosure, a method of manufacturing a display device includes: pre-aligning a display panel with a window, the display panel having a shape of a substantially regular quadrilateral or a shape of a substantially rectangle, the window having a transmissive region, a non-transmissive region adjacent to the transmissive region, and a plurality of main alignment marks in the non-transmissive region, the transmissive region having a shape different from that of the display panel; calculating positions of vertices of the display panel and a position of a center point of the display panel; calculating positions of hypothetical points of the window corresponding to at least some of the vertices of the display panel and a position of an alignment center point of the window corresponding to the center point of the display panel by using numerical information of the display panel and the main alignment marks; aligning the center point of the display panel with the alignment center point of the window such that the center point coincides with the alignment center point; and coupling the window and the display panel to each other. The number of the main alignment marks is less than the number of the vertices of the display panel.

[0025] The window may further include sub-alignment marks spaced apart from the main alignment marks and disposed at positions corresponding to the vertices of a hypothetical regular quadrilateral or a hypothetical rectangle, the hypothetical regular quadrilateral or the hypothetical rectangle having the same center point as the display panel and being larger than the display panel. The method may further include: when an error occurs between the center point and the alignment center point during alignment of the center point with the alignment center point, recalculating the hypothetical point and the alignment center point by using the sub-alignment marks.

[0026] The window may further include test marks spaced apart from the main alignment marks, and the method may further include calculating the distance between the test marks and the edge of the display panel after the window and the display panel are coupled.

[0027] The method may further include placing an adhesive member between the display panel and the window.

[0028] There may be two main alignment marks, and the two main alignment marks may be disposed at positions corresponding to two vertices corresponding to one side edge of the display panel. Description of the Drawings

[0029] The drawings are included to provide a further understanding of the inventive concept by showing exemplary embodiments of the present disclosure, and the drawings are incorporated into and constitute a part of this specification. The drawings, together with the specification, are used to further explain aspects and features of the inventive concept. In the drawings:

[0030] Figure 1 is a perspective view of the interior of a vehicle equipped with a display device according to an embodiment of the present disclosure;

[0031] Figure 2 is a block diagram showing a rear monitoring system of a vehicle equipped with a display device according to an embodiment of the present disclosure;

[0032] Figure 3 is a schematic diagram of the arrangement of interior materials and a display device of a vehicle according to an embodiment of the present disclosure;

[0033] Figure 4A is a perspective view of a display device according to an embodiment of the present disclosure;

[0034] Figure 4B is an exploded perspective view of a display device according to an embodiment of the present disclosure;

[0035] Figure 4C is a cross-sectional view of a display device according to an embodiment of the present disclosure;

[0036] Figure 5A is a cross-sectional view of a display panel according to an embodiment of the present disclosure;

[0037] Figure 5Bis a plan view of a display panel according to an embodiment of the present disclosure;

[0038] Figure 5C is an enlarged cross-sectional view of a display panel according to an embodiment of the present disclosure;

[0039] Figure 6A is a rear view of a display device according to an embodiment of the present disclosure;

[0040] Figure 6B and Figure 6C are respectively Figure 6A enlarged views of portions AA and BB of

[0041] Figure 7A is a flowchart showing a method for manufacturing a display device according to an embodiment of the present disclosure;

[0042] Figure 7B is a perspective view of an operation of a method for manufacturing a display device according to an embodiment of the present disclosure;

[0043] Figure 7C is a side view of an operation of a method for manufacturing a display device according to an embodiment of the present disclosure;

[0044] Figure 8A is a rear view of a display device according to an embodiment of the present disclosure;

[0045] Figure 8B is Figure 8A an enlarged view of portion AA of

[0046] Figure 9A is a rear view of a display device according to an embodiment of the present disclosure;

[0047] Figure 9B is Figure 9A an enlarged view of portion AA of

[0048] Figure 9C is a rear view of a display device according to an embodiment of the present disclosure;

[0049] Figure 9D is Figure 9C an enlarged view of portion AA of

[0050] Figure 10A is a rear view of a display device according to an embodiment of the present disclosure;

[0051] Figure 10B is Figure 10A an enlarged view of portion AA of

[0052] Figure 11A is a rear view of a display device according to an embodiment of the present disclosure; and

[0053] Figure 11B is Figure 11A an enlarged view of part AA of Detailed implementation manners

[0054] The inventive concept will now be described more fully hereinafter with reference to the accompanying drawings, in which various example embodiments are shown. However, the inventive concept may be embodied in many different forms and should not be construed as limited to the example embodiments set forth herein. On the contrary, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art. Like reference numerals always denote like elements. And it should be understood that when an element such as a layer, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may be present. The term "directly" indicates the absence of intervening elements. As used herein, the term "or" means "and / or", and the term "and / or" includes any and all combinations of one or more of the associated listed items. The term "exemplary" is intended to mean an example or illustration. Further, when describing embodiments of the present invention, the use of "may" relates to "one or more embodiments of the present invention". As used herein, the terms "use", "used", and "being used" may be considered to be synonymous with the terms "utilize", "utilized", and "being utilized", respectively.

[0055] The terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. As used herein, unless the context clearly dictates otherwise, the singular forms "a" and "an" are intended to include the plural forms, including "at least one". It will be further understood that when used in this specification, the terms "comprise", "comprises", "comprising", and / or "comprised of" indicate the presence of the stated features, regions, wholes, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, regions, wholes, steps, operations, elements, components, and / or clusters thereof.

[0056] Spatial relative terms, such as "below", "beneath", "lower", "above", "upper", etc., may be used herein for ease of description to describe the relationship of one element or feature to another element or feature as shown in the figures. It should be understood that, in addition to the orientation shown in the figures, the spatial relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is turned over, an element described as "below" or "beneath" another element or feature would then be oriented "above" the other element or feature. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein should be interpreted accordingly.

[0057] It should be understood that although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, or part from another. Thus, without departing from the teachings herein, the first element, component, region, layer, or part discussed below may be referred to as the second element, component, region, layer, or part.

[0058] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary illustrations. Accordingly, in the drawings, for clarity, the thickness of layers and regions may be exaggerated, and variations in illustrated shapes due to, for example, manufacturing techniques and / or tolerances are to be expected. Thus, the exemplary embodiments described herein should not be construed as limited to the shapes of the regions shown herein, but include, for example, shape deviations resulting from manufacturing. For example, an etched region shown as rectangular may have rounded or curved features. Thus, the regions shown in the figures are schematic in nature, and their shapes may not represent the actual shape of regions of the device and are not intended to limit the scope of the exemplary embodiments.

[0059] Figure 1 is a perspective view of the interior of a vehicle VH equipped with a display device DD according to an embodiment of the present disclosure. Figure 2 is a block diagram showing a rear monitoring system VH-BMS of a vehicle VH equipped with a display device DD according to an embodiment of the present disclosure. Figure 3 is a schematic diagram of the arrangement of interior materials VH-I of a vehicle VH and a display device DD according to an embodiment of the present disclosure.

[0060] As Figure 1 shown, a display device DD according to an embodiment of the present disclosure may be disposed on (or in) a door of a vehicle VH. The display device DD may be provided between interior materials VH-I of the vehicle VH and a door frame.

[0061] The display device DD may be included in Figure 2 a rear monitoring system (e.g., a rear side monitoring system) VH-BMS of the vehicle VH schematically shown (e.g., may be a part thereof). In the present embodiment, the rear monitoring system VH-BMS of the vehicle VH is shown as an example, and the embodiments of the present disclosure are not limited thereto. In another embodiment, a display device DD according to the present disclosure may be used as a component (e.g., may be a part thereof) of another functional system that is interlocked (or interconnected) with a vehicle control module VCM to provide information. For example, the display device DD may be used as a component of a navigation system or a multimedia system.

[0062] As Figure 2As shown, the rear monitoring system VH-BMS of the vehicle VH may include a vehicle control module VCM, a camera module CM, and a display device DD. The vehicle control module VCM may be an electronic module including a microprocessor and / or an image processor, and may receive image data output from the camera module CM. The image data may have information about an image of the rear of the vehicle VH (e.g., the camera may be oriented and positioned to face the rear of the vehicle VH). The vehicle control module VCM may convert the image data received from the camera module CM into data suitable for the display device DD (e.g., suitable for display on the display device DD), and may transmit the converted image data to the display device DD. A user may obtain (e.g., may view) an image of the rear of the vehicle VH in real time through the display device DD.

[0063] As Figure 3 shown, a part of the display device DD may be exposed to a user (e.g., visible to the user), and another part of the display device DD may be covered by an interior material VH-I (e.g., may be invisible to the user due to the interior material VH-I). The display device DD may include a display area DD-DA and a border area DD-NDA. A part of the display area DD-DA and the border area DD-NDA may be exposed to the user from the interior material VH-I.

[0064] Figure 4A is a perspective view of the display device DD according to an embodiment of the present disclosure. Figure 4B is an exploded perspective view of the display device DD according to an embodiment of the present disclosure. Figure 4C is a cross-sectional view of the display device DD according to an embodiment of the present disclosure. Figure 5A is a cross-sectional view of the display panel DP according to an embodiment of the present disclosure. Figure 5B is a plan view of the display panel DP according to an embodiment of the present disclosure. Figure 5C is an enlarged cross-sectional view of the display panel DP according to an embodiment of the present disclosure.

[0065] Figure 4A The display device DD shown may display an image through a front surface (or display surface) of the display area DD-DA. The front surface may be parallel to a plane defined by a first direction axis DR1 and a second direction axis DR2. A normal direction of the front surface (e.g., a thickness direction of the display device DD) may be parallel to a third direction axis DR3.

[0066] When the orientation of the displayed image is the same as the direction indicated by the third direction axis DR3, the top surface (or front surface) and the bottom surface (or rear surface) of the members, units, or components of the display device DD can be defined by the third direction axis DR3. Hereinafter, the first direction, the second direction, and the third direction are the directions indicated by the first direction axis DR1, the second direction axis DR2, and the third direction axis DR3, respectively, and are denoted by the same reference numerals as the first direction axis DR1, the second direction axis DR2, and the third direction axis DR3.

[0067] As Figure 4A shown, when viewed in a plan view, the display area DD-DA can have an atypical polygonal shape. The planar shape of the display area DD-DA can be defined by the inner edge BZ-IE of the border layer BZ (see, for example, Figure 4C ).

[0068] The atypical polygonal shape means a shape that is not a substantially rectangular shape and / or a shape of a substantially regular polygon having n edges. Here, the "substantially rectangular shape" refers not only to the shape of a mathematical rectangle but also to a rough (e.g., approximate or overall) rectangular shape that is different from the shape of a mathematical rectangle and does not form a vertex angle at the vertices. The "shape of a substantially regular polygon having n edges" refers not only to the shape of a mathematical regular polygon but also to a rough (e.g., approximate or overall) regular polygon having n edges, which is different from the shape of a mathematical regular polygon, and in which vertex angles are not formed at the vertices. Here, "n" is a natural number of 3 or more. When n is 4, the shape of the substantially regular polygon is the shape of a substantially regular quadrilateral.

[0069] In Figure 4A shown, the border area DD-NDA shown in Figure 3 can be divided into two border areas DD-NDA1 and DD-NDA2. Hereinafter, the first border area DD-NDA1 can be defined as a part of the border area DD-NDA covered by the internal material VH-I (see, for example, Figure 3 ), and the second border area DD-NDA2 can be defined as the other part of the border area DD-NDA that is exposed (e.g., not covered) from the internal material VH-I. The imaginary edge VH-IE of the internal material VH-I that can overlap the display device DD is shown in Figure 4A . For ease of description and illustration, the first border area DD-NDA1 and the second border area DD-NDA2 are shown with different hatching.

[0070] In the present embodiment, a display device DD with a flat display surface is shown. However, embodiments of the present disclosure are not limited thereto. In other embodiments, the display device DD may include a curved display surface or a three-dimensional (3D) display surface. The 3D display surface may include a plurality of display regions indicated by different directions (e.g., perpendicular to or facing different directions). For example, the 3D display surface may have a shape of a substantially regular quadrilateral.

[0071] The display device DD according to the present embodiment may be a rigid display device. However, embodiments of the present disclosure are not limited thereto. In another embodiment, the display device DD may be a flexible display device.

[0072] As Figure 4B and Figure 4C shown in

[0073] As Figures 4A to 4C shown in

[0074] The base layer BS may include a glass substrate and / or a synthetic resin film. The base layer BS is not limited to a single layer. For example, the base layer BS may include a plurality of films coupled to each other through one or more adhesive members OCA.

[0075] The border layer BZ may be a colored organic layer and may be formed by, for example, a coating method. The border layer BZ may have a multi-layer structure. The border layer BZ may include a color layer including a dye and / or a pigment.

[0076] The window WM may further include a functional layer (e.g., a functional coating) provided on the front surface of the base layer BS. The functional layer may include an anti-fingerprint layer, an anti-reflection layer, and / or a hard coating.

[0077] The adhesive member OCA may be a transparent adhesive member. For example, the adhesive member OCA may be a pressure-sensitive adhesive film. However, embodiments of the present disclosure are not limited thereto. In other embodiments, the adhesive member OCA may include a general adhesive or glue.

[0078] The display panel DP according to an embodiment of the present disclosure may be, but is not limited to, a light-emitting display panel. For example, the display panel DP may be an organic light-emitting display panel or a quantum dot light-emitting display panel. The light-emitting layer of the organic light-emitting display panel may include an organic light-emitting material, and the light-emitting layer of the quantum dot light-emitting display panel may include quantum dots and / or quantum rods. Hereinafter, the organic light-emitting display panel DP will be described as an example.

[0079] The display panel DP may have a shape different from the shape of the display area DD-DA of the display device DD and the shape of the transmissive area WM-T of the window WM. When observed in a plan view, the display panel DP may have a shape of a generally typical polygon. The shape of the typical polygon may refer to the shape of a rectangle or the shape of a regular polygon having n sides. The "shape of a generally typical polygon" may refer to the shape of a mathematical rectangle or a mathematical regular polygon whose apexes are formed at vertices, or may refer to the shape of a rough (e.g., approximate or overall) rectangle or a rough (e.g., approximate or overall) regular polygon whose apexes are not formed at vertices but at vertices having curved corner regions. The shape of the regular polygon may be the shape of a regular quadrilateral.

[0080] In addition, the shape of the typical polygon may include the shape of a polygon in which diagonals each connecting adjacent vertices (or extending between adjacent vertices) intersect (or cross) each other at one point. For example, the shape of the typical polygon may include the shape of a rhombus, the shape of a rectangle, or the shape of a regular polygon having an even number of sides (such as four or more sides).

[0081] The shape of the display panel DP in the plan view may be defined by the edge of the display substrate DS or the encapsulation substrate ES described later with reference to Figures 5A to 5C description.

[0082] The display panel DP may include a display area DP-DA and a non-display area DP-NDA. The display area DP-DA may be an area where pixels PX are provided, and the non-display area DP-NDA may be an area where pixels PX are not provided. The display area DP-DA may also have a shape of a generally typical polygon. Even if the display area DP-DA of the display panel DP and the transmissive area WM-T of the window WM have different shapes, when observed in a plan view, the transmissive area WM-T may be provided within the display area DP-DA (e.g., the transmissive area WM-T may extend around the periphery of the display area DP-DA).

[0083] The display device DD may further include an optical film for reducing the reflectance of natural light (e.g., sunlight) incident from the outside. The optical film may be disposed between the window WM and the display panel DP. The optical film may include a phase retarder and a polarizer. The display device DD may further include a touch screen, which may be integrally formed with the display panel DP or may be adhered to the display panel DP.

[0084] As Figure 5A shown, the display panel DP may include a display substrate DS, a package substrate ES, and a sealing member SM. In the present embodiment, a rigid display panel DP is shown as an example. In other embodiments, a flexible display panel may be applied to the display device DD. The flexible display panel may not include the package substrate ES and the sealing member SM, but may include a package film that encapsulates or seals the display substrate DS.

[0085] The display substrate DS may include a base layer BL, a circuit element layer DP-CL disposed on the base layer BL, and a display element layer DP-OLED disposed on the circuit element layer DP-CL. The base layer BL may include a glass substrate. In some embodiments, the base layer BL may include a substrate having a substantially constant refractive index in the wavelength range of visible light.

[0086] The circuit element layer DP-CL may include an insulating layer and circuit elements. Hereinafter, the insulating layer included in the circuit element layer DP-CL is referred to as an intermediate insulating layer. The intermediate insulating layer may include one or more intermediate inorganic layers and / or one or more intermediate organic layers. The circuit elements may include signal lines and driving circuits of pixels.

[0087] The display element layer DP-OLED may include light-emitting elements. The display element layer DP-OLED may include organic light-emitting diodes as light-emitting elements. The display element layer DP-OLED may include a pixel defining layer, which includes, for example, an organic material.

[0088] The package substrate ES may be a transparent substrate, such as a glass substrate. In some embodiments, the package substrate ES may include a substrate having a substantially constant refractive index in the wavelength range of visible light.

[0089] The sealing member SM may include an inorganic bonding member, such as glass frit. In some embodiments, the sealing member SM may include an organic bonding member. The sealing member SM may overlap with the non-display area DP-NDA of the display panel DP. The sealing member SM may form a gap GP between the display substrate DS and the package substrate ES. The gap GP may be filled with air or an inert gas. Hereinafter, air or an inert gas is referred to as external gas. The package substrate ES and the sealing member SM may prevent moisture from penetrating into the display substrate DS.

[0090] As shown Figure 5B in, the display panel DP may include a driving circuit GDC, a plurality of signal lines SGL, and a plurality of pixels PX. Each of the pixels PX may include a light-emitting element and a pixel driving circuit connected to the light-emitting element. The driving circuit GDC, the signal lines SGL, and the pixel driving circuit may be included in Figure 5A the circuit element layer DP-CL shown in.

[0091] The driving circuit GDC may include a scan driving circuit. The scan driving circuit may generate a plurality of scan signals and may sequentially output the scan signals to a plurality of scan lines GL, which will be further described below. The scan driving circuit may also output other control signals to the pixel driving circuit.

[0092] The scan driving circuit may include a plurality of thin film transistors formed by the same process (e.g., a low temperature polysilicon (LTPS) process or a low temperature polycrystalline oxide (LTPO) process) as the pixel driving circuit.

[0093] The signal lines SGL may include scan lines GL, data lines DL, power lines PL, and control signal lines CSL. Each of the scan lines GL may be connected to a corresponding pixel PX, and each of the data lines DL may be connected to a corresponding pixel PX. The power line PL may be connected to the pixel PX. The control signal line CSL may provide a control signal to the scan driving circuit.

[0094] The signal lines SGL may be connected to a circuit board. The signal lines SGL may be connected to a timing control circuit mounted on the circuit board in the form of an integrated chip. In an embodiment of the present disclosure, the integrated chip may be connected to the signal lines SGL provided in the non-display area DP-NDA.

[0095] As shown Figure 5C in, the circuit element layer DP-CL may include a buffer layer BFL including an inorganic layer, a first intermediate inorganic layer CL1, a second intermediate inorganic layer CL2, and an intermediate organic layer CL3. In Figure 5C it, the arrangement relationship of the semiconductor pattern OSP, the control electrode GE, the input electrode DE, and the output electrode SE of the driving transistor T-D is shown as an example. The first opening CH1 and the second opening CH2 (e.g., the first through hole and the second through hole) are also shown as examples.

[0096] The display element layer DP-OLED may include a light-emitting element. The display element layer DP-OLED may include an organic light-emitting diode OLED as the light-emitting element. The display element layer DP-OLED may include a pixel defining layer PDL. For example, the pixel defining layer PDL may be an organic layer.

[0097] The first electrode AE may be disposed on the intermediate organic layer CL3. The first electrode AE may be connected to the output electrode SE through a third opening CH3 (e.g., a third through hole) that penetrates the intermediate organic layer CL3. An opening OP may be defined in the pixel defining layer PDL. The opening OP in the pixel defining layer PDL may expose at least a portion of the first electrode AE. The opening OP in the pixel defining layer PDL is referred to as an emission opening to distinguish it from other openings.

[0098] The display area DP-DA of the display panel DP may include a light-emitting area PXA and a non-light-emitting area NPXA adjacent to the light-emitting area PXA. The non-light-emitting area NPXA may surround the light-emitting area PXA (e.g., may surround the periphery of the light-emitting area PXA or extend around the periphery of the light-emitting area PXA). In the present embodiment, the light-emitting area PXA is defined as corresponding to a portion of the first electrode AE exposed through the emission opening OP.

[0099] The hole control layer HCL may be commonly disposed in the light-emitting area PXA and the non-light-emitting area NPXA (e.g., the hole control layer HCL may be disposed in the light-emitting area PXA and the non-light-emitting area NPXA). The hole control layer HCL may include a hole transport layer and may further include a hole injection layer. The emission layer EML may be disposed on the hole control layer HCL. The emission layer EML may be disposed in a region corresponding to the emission opening OP. For example, the emission layers EML of the pixels PX may be separated from each other. The emission layer EML may include an organic material and / or an inorganic material. The emission layer EML may generate colored light (e.g., the emission layer EML may generate light having a predetermined color).

[0100] The electron control layer ECL may be disposed on the emission layer EML. The electron control layer ECL may include an electron transport layer and may further include an electron injection layer. The hole control layer HCL and the electron control layer ECL may be commonly formed in a plurality of pixels PX by using an opening mask (e.g., a single hole control layer HCL and a single electron control layer ECL may be formed over all the pixels PX). The second electrode CE may be disposed on the electron control layer ECL. The second electrode CE may be commonly disposed in a plurality of pixels PX.

[0101] The protective layer PIL may be disposed on the display element layer DP-OLED. The protective layer PIL may protect the second electrode CE of the organic light-emitting diode OLED. The protective layer PIL may include an inorganic material such as silicon oxide, silicon nitride, and / or silicon oxynitride.

[0102] Figure 6A is a rear view of a display device DD according to an embodiment of the present disclosure. Figure 6B and Figure 6C are respectively Figure 6AEnlarged views of part AA and part BB. Hereinafter, for ease and convenience of description, the reference Figures 1 to 5C Detailed description of the same components as above.

[0103] In the present embodiment, a rectangular display panel DP is shown as an example of a display panel DP having a shape of a generally typical polygon. In Figures 6A to 6C it, an edge DP-IE of the display panel DP is shown. The edge DP-IE of the display panel DP can be, for example, Figure 5A the edge of the encapsulation substrate ES shown in

[0104] A plurality of alignment marks can be defined on (or in) the border layer BZ described above with reference to, for example, Figure 4C A colored material can be printed on the base layer BS by, for example, a screen printing process to form the border layer BZ. A mask can be disposed on (or above) the area where the alignment marks are to be formed, and then, the screen printing process can be performed. Thus, the colored material can not be printed in the area where the mask is disposed. By this method, transmissive (or light-transmissive) alignment marks can be formed jointly (or simultaneously) with the border layer BZ. In such an embodiment, the alignment marks can be formed in the border layer BZ. The transmissive area WM-T can also be an area where no colored material is printed.

[0105] As Figures 6A to 6C shown in, the plurality of alignment marks can include a main alignment mark AM-M, a sub-alignment mark AM-S, and a test mark AM-T. The main alignment mark AM-M can be used in the lamination process of the display panel DP and the window WM. The sub-alignment mark AM-S can be used to supplement the function of the main alignment mark AM-M in the lamination process of the display panel DP and the window WM.

[0106] The test mark AM-T can be disposed outside the display panel DP. The test mark AM-T can be used to calculate the process error of the lamination process after the lamination process. This will be described in more detail later.

[0107] According to the present embodiment, the number of the main alignment marks AM-M of the display device DD can be less than the number of vertices of the shape of the typical polygon defined by the display panel DP. The display device DD including the rectangular display panel DP can include, for example, one to three (e.g., one, two, or three) main alignment marks AM-M. When the display panel DP has a shape of a generally regular polygon including n edges in a plan view, the display device DD can include n - i (n minus i) main alignment marks AM-M, where "i" is a natural number equal to or greater than 1 and less than n.

[0108] Figure 6AAn embodiment of a display device DD including two main alignment marks AM-M is shown. The two main alignment marks AM-M may be disposed at positions corresponding to two vertices corresponding to one edge DP-IE of a display panel DP.

[0109] Since the number of the main alignment marks AM-M is less than the number of vertices of the shape of a typical polygon defined by the display panel DP as described above, the main alignment marks AM-M may not be disposed in the second light-blocking region WM-NT2. As a result, the main alignment marks AM-M may be covered by an internal material VH-I (see, for example, Figure 3 ), and thus may not be visible to a user.

[0110] Each of the main alignment marks AM-M may be disposed at a position corresponding to a vertex of the display panel DP. Accordingly, the vertices of the display panel DP may overlap with the main alignment marks AM-M. Figure 6B A cross-shaped main alignment mark AM-M is shown. Figure 6B A display device DD is shown in which the display panel DP is laminated such that the vertices of the display panel DP completely coincide with the centers of the cross-shaped main alignment marks AM-M without process errors.

[0111] Sub alignment marks AM-S may be disposed adjacent to the main alignment marks AM-M. In Figure 6B , the distance between the sub alignment marks AM-S and the main alignment marks AM-M may be in a range of about 1 mm to about 2 mm. One sub alignment mark AM-S may be disposed adjacent to each of the main alignment marks AM-M, but embodiments of the present disclosure are not limited thereto.

[0112] As shown in Figure 6C , a part of the sub alignment marks AM-S may overlap with the edge DP-IE of the display panel DP. The sub alignment marks AM-S may have the same area as the main alignment marks AM-M, or may have an area different from that of the main alignment marks AM-M. The shapes of the sub alignment marks AM-S and the main alignment marks AM-M are not limited to the shapes described herein.

[0113] The sub alignment marks AM-S adjacent to the main alignment marks AM-M may also be covered by the internal material VH-I (see, for example, Figure 3 ), and thus may not be visible to a user. Test marks AM-T may also be formed at positions covered by the internal material VH-I (see, for example, Figure 3 ). A plurality of test marks AM-T may be provided.

[0114] Figure 7A is a flowchart showing a method for manufacturing a display device DD according to an embodiment of the present disclosure. Figure 7Bis a perspective view of an operation of a method for manufacturing a display device DD according to an embodiment of the present disclosure. Figure 7C is a side view of an operation of a method for manufacturing a display device DD according to an embodiment of the present disclosure. Hereinafter, for ease and convenience of description, references Figures 1 to 6C to the same components as described above may be omitted.

[0115] As Figure 7A and Figure 7B shown, the display panel DP may be pre-aligned with the window WM (S10). The display panel DP and the window WM may be aligned such that the top surface of the display panel DP faces the bottom surface of the window WM. The display panel DP may be placed on a platform of a lamination device, and the window WM may be held by a holder of the lamination device. The holder may be provided above the platform.

[0116] At this time, an adhesive member OCA may be provided between the display panel DP and the window WM. The adhesive member OCA may be adhered to one of the top surface of the display panel DP and the bottom surface of the window WM.

[0117] Next, as Figure 7A and Figure 7B shown, the center point (e.g., centroid point) DP-CP of the display panel DP and the alignment center point WM-CP of the window WM may be calculated (S20). The display panel DP may be photographed by using a camera module. A computer system of the lamination device may calculate coordinate information (e.g., position information) of vertices of the display panel DP by using an image of the display panel DP. The computer system may calculate the center point DP-CP by using the coordinate information of the vertices. Two imaginary diagonals DP-DL that link vertices (e.g., extend between vertices) (e.g., link opposite vertices or extend between opposite vertices) may be set (or calculated), and then, the intersection point of the two imaginary diagonals DP-DL may be calculated as the center point DP-CP. The center point DP-CP may be calculated by a method of calculating a mathematical centroid point.

[0118] A method of setting the center point of a regular polygon having an odd number of edges (e.g., the center point of a regular pentagon) will be briefly described. Five imaginary lines may be set (or calculated) that link vertices to the center points of the edges facing each of the vertices (e.g., extend between the vertices and the center points of the edges facing each of the vertices). The five imaginary lines may intersect each other at one point, and the one point may be set as the center point. Thus, the center point may be calculated by using the coordinate information of the vertices.

[0119] The window WM can be photographed by using a camera module. Information about a smaller number of main alignment marks AM-M than the number of vertices of the display panel DP can be obtained. The computer system can calculate the coordinate information of the main alignment marks AM-M by using an image of the window WM (e.g., an image of the main alignment marks AM-M).

[0120] The coordinate information of the imaginary points AM-I corresponding to the vertices of the display panel DP, which do not correspond to the main alignment marks AM-M, can be calculated by using the coordinate information of the main alignment marks AM-M and the numerical information (e.g., the size of the display panel DP) of the display panel DP input previously (e.g., stored in the memory). The computer system can calculate the alignment center point WM-CP by using the coordinate information of the main alignment marks AM-M and the coordinate information of the imaginary points AM-I. Two imaginary diagonals WM-DL linking the main alignment marks AM-M and the imaginary points AM-I (e.g., extending between the main alignment marks AM-M and the imaginary points AM-I) can be set (or calculated), and then, the intersection point of the two imaginary diagonals WM-DL can be calculated as the alignment center point WM-CP.

[0121] Subsequently, as shown in Figure 7A and Figure 7B , the center point DP-CP can be aligned with the alignment center point WM-CP (S30). The positions of the adjustable platform and the holder can be adjusted to align the center point DP-CP with the alignment center point WM-CP.

[0122] At this time, the positions of the platform and the holder can be adjusted so that the main alignment marks AM-M are aligned with some corresponding vertices of the display panel DP. The position of the display panel DP or the window WM can be adjusted so that the other vertices of the display panel DP are aligned with the imaginary points AM-I.

[0123] At this time, the alignment state of the display panel DP and the window WM can be verified or checked by using the sub alignment marks AM-S shown in Figure 6C . When the sub alignment marks AM-S coincide with the edge of the display panel DP, subsequent processes can be executed. When the sub alignment marks AM-S do not coincide with the edge of the display panel DP, the processes to be described later with reference to 10A and Figure 10B can be additionally executed.

[0124] Next, as shown in Figure 7A and Figure 7CAs shown, window WM and display panel DP can be coupled to each other (S40). The platform can move in a third direction DR3, and thus, display panel DP can approach window WM. Window WM and display panel DP can be coupled to each other with an optically clear adhesive (OCA) member disposed on the top surface of display panel DP. The OCA member can be a sheet or resin. However, the method of coupling window WM and display panel DP to each other is not limited thereto.

[0125] After coupling window WM and display panel DP to each other, a process of verifying or inspecting process errors can be performed. When the process error is equal to or greater than a reference value, it can be determined that the corresponding display device DD is (e.g., can be classified as) a defective product. The reference Figures 6A to 6C distance between the edge DP-IE of the described display panel DP and the test mark AM-T can be calculated, and the calculated distance can be compared with the reference value. The rear surface of display device DD can be photographed using a camera module, and the computer system can calculate the distance based on the photographed image.

[0126] Each of the test marks AM-T can have preset coordinate information. The test marks AM-T can be spaced apart from the edge DP-IE of the display panel DP by different distances. Multiple distances can be calculated to improve the reliability of the inspection.

[0127] Figure 8A is a rear view of a display device DD according to an embodiment of the present disclosure. Figure 8B is Figure 8A an enlarged view of part AA of Figures 1 to 7C For ease and convenience of description hereinafter, detailed descriptions of the same components as above may be omitted.

[0128] Figure 8A The display panel DP is shown, which has a roughly (e.g., overall or generally) rectangular shape in a plan view. A curve CL can be defined in the curved corner region of the display panel DP (e.g., the corners of the display panel DP can be curved or rounded). The curve CL can be defined by the edge of the display substrate DS or the edge of the encapsulation substrate ES. For example, the edge of the display substrate DS or the edge of the encapsulation substrate ES can have a curve CL in its corner region.

[0129] The computer system of the lamination device can calculate the coordinate information (e.g., position information) of the imaginary vertex V-I by using the image of the corner region obtained by the camera module. If the edges remain straight (e.g., if the edge DP-IE does not have a curved or rounded corner), the imaginary vertex V-I can be the point where two edges DP-IE would intersect each other.

[0130] The center point DP-CP of the display panel DP can be calculated by using the coordinate information of the imaginary vertices V-I. Two imaginary diagonals connecting the imaginary vertices V-I (e.g., extending between the imaginary vertices V-I) can be set (or calculated), and then, the intersection point of the two imaginary diagonals can be calculated as the center point DP-CP. The main alignment mark AM-M can be set at a position corresponding to the imaginary vertices V-I.

[0131] Figure 9A is a rear view of a display device DD according to an embodiment of the present disclosure. Figure 9B is Figure 9A an enlarged view of part AA of Figure 9C is a rear view of a display device DD according to an embodiment of the present disclosure. Figure 9D is Figure 9C an enlarged view of part AA of. Hereinafter, for ease and convenience of description, detailed descriptions of the same components as above may be omitted. Figures 1 to 8B for

[0132] The main alignment mark AM-M can be set at a position corresponding to the vertices of a rectangle or a regular polygon having n edges, the rectangle or the regular polygon having n edges having the same center point DP-CP as the display panel DP and being larger than (e.g., larger than) the display panel DP. The rectangle or the regular polygon can be an imaginary rectangle or an imaginary regular polygon. A rectangle DP-W larger than the display panel DP (e.g., larger than the display panel DP and / or surrounding the periphery of the display panel DP or extending around the periphery of the display panel DP) is shown as an example in Figures 9A to 9D in.

[0133] As Figure 9A and Figure 9B shown in, the rectangle DP-W can have a length in the second direction DR2 that is greater than the length of the display panel DP. In another embodiment, the rectangle DP-W can have a length in the first direction DR1 that is greater than the length of the display panel DP. In yet another embodiment, as Figure 9C and Figure 9D shown in, the rectangle DP-W can have a length in the first direction DR1 and a length in the second direction DR2, the length in the first direction DR1 and the length in the second direction DR2 being greater than the lengths of the display panel DP in the first direction and the second direction, respectively.

[0134] The coordinate information of the imaginary point AM-I can be calculated by using the coordinate information of the main alignment mark AM-M, the numerical information of the display panel DP previously input (or stored in the memory), and the distance information between the vertices of the display panel DP and the main alignment mark AM-M.

[0135] The alignment center point WM-CP can be calculated by using the coordinate information of the imaginary point AM-I and the coordinate information of the main alignment mark AM-M. Two imaginary diagonals connecting the imaginary point AM-I and the main alignment mark AM-M (e.g., extending between the imaginary point AM-I and the main alignment mark AM-M) can be set (or calculated), and then, the intersection point of the two imaginary diagonals can be calculated as the alignment center point WM-CP.

[0136] Figure 10A is a rear view of the display device DD according to an embodiment of the present disclosure. Figure 10B is Figure 10A an enlarged view of part AA of. Hereinafter, for ease and convenience of description, references to Figures 1 to 9D detailed descriptions of the same components as above may be omitted.

[0137] The main alignment mark AM-M can be set at a position corresponding to the vertex of the display panel DP having a rectangular shape or a regular polygon shape with n edges. The sub-alignment mark AM-S can be set at a position corresponding to the vertex of a rectangle or a regular polygon with n edges, the rectangle or the regular polygon having the same center point DP-CP as the display panel DP and being larger than (e.g., larger than) the display panel DP. The rectangle or the regular polygon can be an imaginary rectangle or an imaginary regular polygon. The rectangle DP-W larger than (e.g., larger than) the display panel DP is shown as an example in Figure 10A and Figure 10B FIGS.

[0138] In the alignment operation described above with reference to Figure 7A and Figure 7B when an error (or difference) occurs between the alignment center point WM-CP and the center point DP-CP calculated based on the main alignment mark AM-M, the imaginary point AM-I and the alignment center point WM-CP can be recalculated by using the sub-alignment mark AM-S. The error between the center point DP-CP and the alignment center point WM-CP may be caused by a process error that occurs when printing the border layer BZ on the base layer BS. For example, there may be an error because the main alignment mark AM-M is formed at a position different from the designed position.

[0139] The imaginary point AM-I and the alignment center point WM-CP can be recalculated by using the sub-alignment mark AM-S by using the method described above with reference to Figure 9A and Figure 9B FIGS. The coordinate information of the imaginary point AM-I can be calculated by using the coordinate information of the sub-alignment mark AM-S, the numerical information of the previously input display panel DP, and the distance information between the vertex of the display panel DP and the sub-alignment mark AM-S. As shown in Figure 10AAs shown, the imaginary point AM-I can be set in the second light-blocking region WM-NT2 where the sub-alignment mark AM-S is not formed.

[0140] Figure 11A is a rear view of the display device DD according to an embodiment of the present disclosure. Figure 11B is Figure 11A an enlarged view of part AA of. Hereinafter, for ease and convenience of description, the detailed description of the same components as above may be omitted. Figures 1 to 10B for the same components described above.

[0141] When observed in a plan view, the display area DP-DA according to the present embodiment may have a substantially rectangular shape or a substantially regular polygon shape. The display panel DP-1 or DP-2 can be photographed, and the photographed image of the display panel DP-1 or DP-2 can be processed to set (or calculate) the imaginary boundary line DA-E of the display area DP-DA. The imaginary boundary line DA-E can determine the shape of the display area DP-DA. In the present embodiment, the display area DP-DA having a substantially rectangular shape is shown as an example. For example, the display area DP-DA may have a curved corner area.

[0142] The computer system of the lamination device can calculate the coordinate information (e.g., position information) of the imaginary vertex DV-I of the display area DP-DA by using the imaginary boundary line DA-E. The centroid point DP-CPD of the display area DP-DA can be calculated by using the coordinate information of the imaginary vertex DV-I. Two imaginary diagonals DA-DL connecting the imaginary vertices DV-I (e.g., extending between the imaginary vertices DV-I) can be set (or calculated), and then, the intersection point of the two imaginary diagonals DA-DL can be calculated as the centroid point DP-CPD of the display area DP-DA.

[0143] The main alignment mark AM-M can be set at a position corresponding to the vertex of a rectangle or a regular polygon, which has the same centroid point DP-CPD as the display area DP-DA and is larger than (e.g., larger than) the display area DP-DA. When observed in a plan view, the main alignment mark AM-M can be set outside the display panel DP-1 or DP-2.

[0144] The present embodiment can be applied to the display panel DP-1, which does not have a substantially rectangular shape or a substantially regular polygon shape, but has an atypical shape. The display panel DP-1 and the window WM can be laminated precisely according to the display area DP-DA.

[0145] In an embodiment of the present disclosure, when the display panel DP-2 has a substantially rectangular shape or a substantially regular polygon shape, the centroid point DP-CPD of the display panel DP-2 can be calculated by using the display area DP-DA. In the alignment operations referred to above Figure 7A and Figure 7B described, when an error (or difference) occurs between the center point DP-CP calculated by using the vertices of the display panel DP and the alignment center point WM-CP calculated based on the main alignment mark AM-M, the centroid point DP-CPD can be recalculated by using the display area DP-DA.

[0146] Figure 11A FIG. shows a display panel DP-1 having an atypical shape and a display panel DP-2 having a rectangular shape. It is assumed that the two display panels DP-1 and DP-2 have the same display area DP-DA.

[0147] According to the above embodiment of the present disclosure, in the process of coupling a window having a transmissive area with an atypical shape and a display panel having a typical shape, positioning errors or failures can be avoided. This may be because the positions of the imaginary point and the alignment center point can be calculated by using the main alignment marks formed in the window, and the display panel and the window can be laminated by using the calculated values.

[0148] Since the number of main alignment marks is less than the number of vertices of the display panel, the main alignment marks may not be formed in a part (or area) of the window that is exposed to the user (e.g., visible to the user).

[0149] Although the inventive concept has been described with reference to example embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made to the example embodiments without departing from the spirit and scope of the inventive concept. Therefore, it should be understood that the above embodiments are illustrative rather than restrictive. Accordingly, the scope of the inventive concept will be determined by the broadest permissible interpretation of the appended claims and their equivalents, and should not be limited or defined by the foregoing description.

Claims

1. A display device, comprising: a window; and a display panel, the display panel being coupled to a bottom surface of the window and having a shape of a substantially regular quadrilateral or a substantially rectangular shape in a plan view, wherein the window includes: a base member; and a border layer on a bottom surface of the base member, in which one to three light-transmitting main alignment marks and a transmission area having a shape different from that of the display panel are defined, wherein each of the main alignment marks is arranged at a position corresponding to a vertex of the display panel or at a position corresponding to a vertex of a hypothetical regular quadrilateral or a hypothetical rectangle, the hypothetical regular quadrilateral or the hypothetical rectangle having the same center point as the display panel and being larger than the display panel.

2. The display device according to claim 1, wherein when two main alignment marks are defined in the border layer, the two main alignment marks are arranged at positions corresponding to two vertices corresponding to one side edge of the display panel.

3. The display device according to claim 1, wherein each of the main alignment marks overlaps with the vertex of the display panel.

4. The display device according to claim 1, wherein the display panel has a display area where pixels are arranged and a non-display area where pixels are not arranged, and wherein the non-display area surrounds the periphery of the display area in a plan view.

5. The display device according to claim 1, further comprising light-transmitting sub-alignment marks defined in the border layer, spaced apart from the main alignment marks, and having a shape different from that of the main alignment marks.

6. The display device according to claim 5, wherein the sub-alignment marks overlap with an edge of the display panel.

7. The display device according to claim 1, further comprising light-transmitting test marks defined in the border layer and arranged outside the display panel.

8. The display device according to claim 1, wherein a corner area of the display panel has a curved shape in a plan view.

9. The display device according to claim 1, wherein the display device is installed in a vehicle.

10. The display device according to claim 9, wherein the transmission area is exposed from an interior material of the vehicle, wherein a part of the border layer is covered by the interior material of the vehicle, and wherein the main alignment marks overlap with the interior material of the vehicle.

11. A display device, comprising: a window; and a display panel, the display panel being coupled to a bottom surface of the window and having: a display area having a shape of a substantially regular quadrilateral or a substantially rectangular shape in a plan view; and a non-display area outside the display area, wherein the window includes: a base member; and a border layer on a bottom surface of the base member, in which one to three light-transmitting main alignment marks and a transmission area having a shape different from that of the display area are defined, and Among them, each of the main alignment marks is arranged at a position corresponding to a vertex of a hypothetical regular quadrilateral or a hypothetical rectangle, and the hypothetical regular quadrilateral or the hypothetical rectangle has the same center point as the display area and is larger than the display area.

12. The display device according to claim 11, wherein, the display panel has a shape different from that of the display area in a plan view.

13. The display device according to claim 11, wherein, the display panel has a shape of a substantially regular quadrilateral or a shape of a substantially rectangle in a plan view.

14. The display device according to claim 13, wherein, each of the main alignment marks is arranged at a position corresponding to a vertex of the display panel.

15. A display device, comprising: a window; and a display panel, the display panel being coupled to the bottom surface of the window and having a shape of a regular quadrilateral with a curved corner region in a plan view or a shape of a rectangle with a curved corner region in a plan view, wherein the window includes: a base member; and a border layer on the bottom surface of the base member, in which one to three light-transmitting main alignment marks and a transmission region having a shape different from that of the display panel are defined, and each of the main alignment marks is arranged at a position corresponding to a vertex of the display panel or at a position corresponding to a vertex of a hypothetical regular quadrilateral or a hypothetical rectangle, and the hypothetical regular quadrilateral or the hypothetical rectangle has the same center point as the display panel and is larger than the display panel.

16. A display device, comprising: a window; and a display panel, the display panel being coupled to the bottom surface of the window and having a shape of a substantially regular polygon with n edges in a plan view, wherein the window includes: a base member; and a border layer on the bottom surface of the base member, in which a plurality of light-transmitting alignment marks and a transmission region having a shape different from that of the display panel are defined, wherein the number of the alignment marks is n - i, where "i" is a natural number equal to or greater than 1 and less than "n", and each of the alignment marks is arranged at a position corresponding to a vertex of the display panel or at a position corresponding to a vertex of a hypothetical polygon, and the vertex of the hypothetical polygon has the same center point as the display panel and is larger than the display panel.

17. A method for manufacturing a display device, the method comprising: pre-aligning a display panel with a window in advance, the display panel having a shape of a substantially regular quadrilateral or a shape of a substantially rectangle, the window having a transmission region, a non-transmission region adjacent to the transmission region, and a plurality of main alignment marks in the non-transmission region, and the transmission region having a shape different from that of the display panel; calculating the positions of the vertices of the display panel and the position of the center point of the display panel; Calculating the positions of the imaginary points of the window corresponding to at least some of the vertices of the display panel and the position of the alignment center point of the window corresponding to the center point of the display panel by using the numerical information of the display panel and the main alignment marks; Aligning the center point of the display panel with the alignment center point of the window so that the center point coincides with the alignment center point; and Coupling the window and the display panel to each other, wherein the number of the main alignment marks is less than the number of the vertices of the display panel.

18. The method according to claim 17, wherein, the window further includes sub-alignment marks spaced apart from the main alignment marks and disposed at positions corresponding to the vertices of a hypothetical regular quadrilateral or a hypothetical rectangle, the hypothetical regular quadrilateral or the hypothetical rectangle having the same center point as the display panel and being larger than the display panel, and the method further includes: When an error occurs between the center point and the alignment center point during the alignment of the center point with the alignment center point, recalculating the imaginary points and the alignment center point by using the sub-alignment marks.

19. The method according to claim 17, wherein, the window further includes test marks spaced apart from the main alignment marks, and the method further includes: Calculating the distance between the test marks and the edge of the display panel after the window and the display panel are coupled.

20. The method according to claim 17, further including placing an adhesive member between the display panel and the window.

21. The method according to claim 17, wherein, there are two of the main alignment marks, and wherein the two main alignment marks are disposed at positions corresponding to two vertices corresponding to one side edge of the display panel.

Images