Display device

Abstract

A display device is disclosed, which includes a display panel and a top cover arranged around a side surface of the display panel, wherein the top cover includes: a receiving portion corresponding to the side surface of the display panel; a first extending portion extending from an upper end of the receiving portion; and a second extending portion extending from a lower end of the receiving portion, such that the first extending portion is offset from the second extending portion.

Description

[0001] This application claims the priority benefit of Korean Patent Application No. 10-2019-0032830 filed on March 22, 2019, in the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The invention relates to a display device, and more particularly to a configuration of a display device that optimizes the perception of an image to be formed by combining the display device with other similarly configured display devices. Background Art

[0003] Display devices such as liquid crystal displays (LCDs) and organic light emitting displays (OLEDs) have become increasingly important for an expanding variety of applications. Examples of these applications include multimedia.

[0004] Around the glass substrate of the display device, the area where the driver integrated circuit (IC) or the printed circuit is arranged can be referred to as a frame in which the image of the display device is not displayed. When multiple display devices are arranged in a grid arrangement as tiles to form a large-screen display of an image, the display devices are connected to each other. When such a connection is made, the frame of the multiple display devices becomes excessively prominent due to their width. As a result, the image to be displayed aggravates the frame to a certain extent, so that the frame interferes with the seamless perception of the image. Summary of the invention

[0005] Aspects of the invention provide a display device that can reduce the perception of a bezel area and prevent poor adhesion between a top cover of the display device and a display panel.

[0006] An embodiment of the invention provides a display device, comprising a display panel and a top cover arranged around a side surface of the display panel, wherein the top cover comprises: a receiving portion corresponding to the side surface of the display panel; a first extending portion extending from an upper end of the receiving portion; and a second extending portion extending from a lower end of the receiving portion, such that the first extending portion is offset from the second extending portion.

[0007] An embodiment of the invention provides a display device, comprising: a display panel, comprising a first substrate, a second substrate facing the first substrate, a connection wiring arranged on the first substrate, and a connection pad arranged on the first substrate and the second substrate and electrically connected to the connection wiring; and a top cover attached to the display panel, wherein the top cover comprises a receiving portion corresponding to a side surface of the first substrate, a side surface of the second substrate and the connection pad, a first extending portion extending from an upper end of the receiving portion, and a second extending portion extending from a lower end of the receiving portion, the first extension portion being offset from the second extension portion.

[0008] However, the various aspects of the invention are not limited to the aspects set forth herein. The above and other aspects of the invention will become more apparent to those skilled in the art by referring to the following detailed description of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Further understanding of the above and other aspects and features of the invention will become more apparent by describing in detail exemplary embodiments of the invention with reference to the accompanying drawings, in which:

[0010] Figure 1 is a view schematically showing a spliced ​​display device according to an embodiment;

[0011] Figure 2 It is schematically shown Figure 1 An exploded perspective view of a portion of a tiled display device;

[0012] Figure 3 is a perspective view schematically showing the arrangement of a display panel, a backlight unit, a gate flexible circuit board, a source flexible circuit board, and a printed circuit board according to an embodiment;

[0013] Figure 4 shows connection wiring of a display device according to an embodiment;

[0014] Figure 5 According to the embodiment along Figure 3 A cross-sectional view taken along line AA';

[0015] Figure 6 It is shown Figure 2 a perspective view of a portion of a top cover;

[0016] Figure 7 According to the embodiment along Figure 2 A cross-sectional view taken along line II';

[0017] Figure 8 According to the embodiment along Figure 2 A cross-sectional view taken along line II-II';

[0018] Fig. 9 The relationship between the display panel and the receiving portion is shown;

[0019] Figures 10 to 13 shows attachment of a display panel to a top cover according to an embodiment;

[0020] Fig.14 According to another embodiment, Figure 2 A cross-sectional view taken along line II';

[0021] Fig.15 According to another embodiment, Figure 2A cross-sectional view taken along line II-II';

[0022] Fig.16 Show according to Fig.14 and Fig.15 A relationship between a display panel and a receiving portion of any one of the above;

[0023] Fig.17 According to another embodiment, Figure 2 A cross-sectional view taken along line II';

[0024] Fig.18 According to another embodiment, Figure 2 A cross-sectional view taken along line II-II';

[0025] Fig.19 Show according to Fig.17 and Fig.18 A relationship between a display panel and a receiving portion of any one of the above;

[0026] Fig. 20 According to another embodiment, Figure 2 A cross-sectional view taken along line II';

[0027] Fig.21 According to another embodiment, Figure 2 A cross-sectional view taken along line II-II';

[0028] Fig. 22 Show according to Fig. 20 and Fig.21 A relationship between the display panel and the receiving portion of any one of the following; and

[0029] Fig.23 is a cross-sectional view schematically showing the connection of a spliced ​​display device according to an embodiment. DETAILED DESCRIPTION

[0030] By referring to the following detailed description of the embodiments and the accompanying drawings, the features of the invention and its implementation method can be more easily understood. However, the scope of the invention is not limited to the embodiments in the drawings and the specification, and should be interpreted as including all changes, equivalents and substitutions included in the spirit and scope of the invention.

[0031] For describing the embodiments of the invention, some parts not related to the description may not be provided, and the same reference numerals denote the same elements throughout the specification.

[0032] It will be understood that when an element or layer is referred to as being "on," "connected to," or "coupled to" another element or layer, the element or layer may be directly on, directly connected to, or coupled to the other element or layer, or there may be intervening elements or layers. Conversely, when an element or layer is referred to as being "directly on," "directly connected to," or "directly coupled to" another element or layer, there are no intervening elements or layers. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0033] For ease of description, spatially relative terms such as "under", "below", "below", "above", "on", etc. may be used herein to describe the relationship of one element or feature to another (other) element or feature as shown in the drawings. It will be understood that the spatially relative terms are intended to cover different orientations of the device in use or operation other than the orientation depicted in the drawings. For example, if the device in the drawings is turned over, the elements described as "under" or "below" other elements or features will then be positioned as "above" the other elements or features. Therefore, the exemplary term "under" can cover both the above and below orientations. The device can be positioned otherwise (i.e., rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0034] It will be understood that, although the terms first, second, etc. can be used 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 only used to distinguish an element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teaching of the invention, the first element, first component, first region, first layer or first part discussed below can be named as the second element, second component, second region, second layer or second part.

[0035] Furthermore, in the specification, the phrase "in a plan view" means when an object portion is viewed from above, and the phrase "in a cross-sectional view" means when a cross section taken by vertically cutting an object portion is viewed from the side. In addition, the term "overlap" or its variations means that a first object may be above, below or to the side of a second object, and vice versa.

[0036] Figure 1 is a view schematically showing a spliced ​​display device according to an embodiment, Figure 2 It is schematically shown Figure 1 An exploded perspective view of a portion of a video wall device, Figure 3is a perspective view schematically showing the arrangement of a display panel, a backlight unit, a gate flexible circuit board, a source flexible circuit board, and a printed circuit board according to an embodiment, Figure 4 is a view showing connection wiring of a display device according to an embodiment, Figure 5 According to the embodiment along Figure 3 A cross-sectional view taken along line A-A', Figure 6 It is shown Figure 2 A perspective view of a portion of the top cover.

[0037] Unless otherwise defined, the terms "up", "down", "left", and "right" in the plane direction refer to directions when the display surface is placed flat and viewed from above. For example, the term "left" refers to a direction opposite to the second direction DR2, the term "right" refers to the second direction DR2, the term "up" refers to a direction opposite to the first direction DR1, and the term "down" refers to the first direction DR1.

[0038] The display device 1 may be a self-luminous display device such as an organic light-emitting display device, a quantum dot light-emitting display device, a micro light-emitting diode display device, or a nano light-emitting diode display device. In addition, the display device 1 may be a non-luminous display device such as an electrophoretic display device or an electrowetting display device. Hereinafter, for the sake of convenience of explanation, a case where the display device 1 is a liquid crystal display device including a liquid crystal layer will be described as an example.

[0039] In some embodiments, the display device 1 can be applied to large electronic devices such as televisions and exterior billboards, and small and medium-sized electronic devices such as personal computers, notebook computers, car navigation systems, and cameras. In addition, the display device 1 can be applied to electronic devices such as tablet PCs, smart phones, personal digital assistants (PDAs), portable multimedia players (PMPs), game consoles, and watches. The above electronic devices are only examples, and any other electronic devices may also be used.

[0040] Reference Figure 1 , the spliced ​​display device TD may include a plurality of display devices 1. In an exemplary embodiment, the display devices 1 may be arranged in a grid form, but the invention is not limited thereto. For example, the display devices 1 may be connected in a first direction DR1, connected in a second direction DR2, and connected in a specific shape such as a three-dimensional shape. The display devices 1 may have the same size as each other, but the invention is not limited thereto. The display devices 1 may have different sizes from each other.

[0041] In an exemplary embodiment, each display device 1 included in the spliced ​​display device TD may have a rectangular shape including a long side and a short side, and may be arranged so that the long side and the short side are connected to each other. Some of the display devices 1 may constitute one side of the spliced ​​display device TD, some of the display devices 1 may be arranged at a corner of the spliced ​​display device TD to constitute two adjacent sides of the spliced ​​display device TD, and some of the display devices 1 may be arranged inside the spliced ​​display device TD to be surrounded by other display devices 1.

[0042] Each display device 1 may include a display area DA and a non-display area NDA. The display area DA is an area where an image can be displayed, and the non-display area NDA, which may be a frame area of ​​the display device 1, may be an area where an image is not displayed and is a peripheral area of ​​the display area DA. The non-display area NDA may be arranged around the periphery of the display area DA to surround the display area DA, but the invention is not limited thereto. Each display device 1 may have a non-display area NDA having a different shape depending on the position of the display device 1, and may also have a non-display area NDA having the same shape.

[0043] The spliced ​​display device TD may have a planar shape, but the invention is not limited thereto. The spliced ​​display device TD may have a three-dimensional shape to provide a three-dimensional effect. When the spliced ​​display device TD has a three-dimensional shape, each display device 1 included in the spliced ​​display device TD may have a bent shape, and the display devices 1 may be connected to each other at a predetermined angle to allow the entire spliced ​​display device TD to have a three-dimensional shape.

[0044] The display devices 1 can be connected to each other so that their frame areas (defined as non-display areas NDA) are in contact with each other, and can also be connected to each other by connecting members (not shown). Therefore, since the spliced ​​display device TD can be constructed so that the display devices 1 are connected to each other and the frame areas of the display devices 1 are arranged side by side at the connection position, each display device 1 needs to have a thin frame to minimize its perception. Therefore, the connection pad (pad, or "pad") of the flexible circuit board can be connected to the side surface of each display device 1 to achieve this minimization.

[0045] Reference Figures 2 to 5 Each display device 1 may include a display panel DPN, a backlight unit BLU under the display panel DPN, and a bottom cover BC and a top cover TC each accommodating the display panel DPN and the backlight unit BLU. Although not shown, each display device 1 may further include a fixing member such as an intermediate frame disposed between the top cover TC and the bottom cover BC to fix the display panel DPN in a certain position.

[0046] The display panel DPN may include a first substrate 100, a liquid crystal layer 200, and a second substrate 300. In an exemplary embodiment, Figure 3 As shown in , the display panel DPN may further include a source flexible circuit board SFPC1 attached to one side surface of the display panel DPN, a gate flexible circuit board GFPC1 attached to the other side surface of the display panel DPN, and a printed circuit board SPCB connected to the source flexible circuit board SFPC1.

[0047] Each of the first substrate 100, the second substrate 300, and the backlight unit BLU may have a rectangular shape having a long side in the first direction DR1 and a short side in the second direction DR2 crossing the first direction DR1. However, the shape of each of the first substrate 100, the second substrate 300, and the backlight unit BLU is not limited thereto. In some embodiments, each of the first substrate 100, the second substrate 300, and the backlight unit BLU may have a bent portion.

[0048] The backlight unit BLU may generate light and may provide the generated light to the first substrate 100, the liquid crystal layer 200, and the second substrate 300. The display panel DPN including the first substrate 100, the liquid crystal layer 200, and the second substrate 300 may generate an image using the light provided from the backlight unit BLU and may provide the image to the outside of the display device 1.

[0049] The display panel DPN may include a display area DA displaying an image and a non-display area NDA not displaying an image. Although not shown, the display device 1 may further include a window member covering the display panel DPN and transmitting the image to the outside (ie, above the second substrate 300).

[0050] The backlight unit BLU may be, for example, an edge type backlight unit or a direct type backlight unit, but the embodiment is not limited thereto.

[0051] The first substrate 100 may include pixels SPX. In an exemplary embodiment, the pixels SPX may be arranged in a matrix form, but the invention is not limited thereto. Gate lines SGL1 to SGLm (where m is a natural number) and data lines SDL1 to SDLn (where n is a natural number) may be arranged along the boundaries of the pixels SPX. The gate lines SGL1 to SGLm may be used as selection lines for selecting the pixels SPX.

[0052] For ease of explanation, although Figure 2 Only one pixel SPX is shown in FIG. 1 , but a plurality of pixels SPX may be defined on the first substrate 100. Each pixel SPX may be provided with a pixel electrode to define a pixel including such an electrode.

[0053] The gate lines SGL1 to SGLm and the data lines SDL1 to SDLn may be arranged to be insulated from each other and to intersect each other. The gate lines SGL1 to SGLm may extend in a first direction DR1 and may be electrically connected to the data lines such as Figure 3 The data lines SDL1 to SDLn may extend in the second direction DR2 and may be connected to the data driver SDD.

[0054] The pixels SPX may be arranged to be electrically connected to the gate lines SGL1 to SGLm and the data lines SDL1 to SDLn intersecting each other. The pixels SPX may be arranged, for example, in a matrix form, but the embodiment is not limited thereto.

[0055] In some embodiments, the gate driver SGD may include a gate driver chip GDIC1. The gate driver SGD may include one gate driver chip GDIC1, but may also include a plurality of gate driver chips GDIC1. Figure 3 , four gate driver chips GDIC1 are shown to be arranged, but the number of gate driver chips GDIC1 may not be limited thereto. The gate driver chip GDIC1 may be mounted on a gate flexible circuit board GFPC1, and the gate flexible circuit board GFPC1 may be attached to the side surface of the display panel DPN along the second direction DR2 according to a tape carrier package (TCP) configuration. In addition, in some embodiments, the gate driver SGD may be formed of a plurality of gate driver chips GDIC1 and may be mounted on the first substrate 100 according to a chip on glass (COG) configuration. However, such a configuration is merely exemplary. In some embodiments, the gate driver SGD may be disposed in a predetermined area adjacent to at least one of the short sides of the first substrate 100.

[0056] The gate driver SGD may be simultaneously formed during a process of manufacturing a transistor driving the pixel SPX, and may be mounted on the first substrate 100 in the form of an amorphous silicon TFT gate driving circuit (ASG) or an oxide silicon TFT gate driving circuit (OSG).

[0057] The data driver SDD may include a source driver chip SDIC1. The data driver SDD may include one or more source driver chips SDIC1. Figure 3 FIG. 5 shows that five source driver chips SDIC1 are arranged, but the number of the source driver chips SDIC1 may not be limited thereto.

[0058] The printed circuit board SPCB may include, for example, a timing controller (not shown). The timing controller may be mounted on the printed circuit board SPCB in the form of an integrated circuit chip and may be electrically connected to the gate driver SGD and the data driver SDD. The timing controller may output a gate control signal, a data control signal, and image data.

[0059] The gate driver SGD may receive a gate control signal from the timing controller. The gate driver SGD may generate a gate signal in response to the gate control signal, and may sequentially output the generated gate signal. The gate signal may be provided to the pixels SPX for each row through the gate lines SGL1 to SGLm. As a result, the pixels SPX may be driven for each row.

[0060] The data driver SDD may receive image data and a data control signal from the timing controller. The data driver SDD may generate an analog data voltage corresponding to the image data in response to the data control signal and may output the analog data voltage. The data voltage may be provided to the pixel SPX through the data lines SDL1 to SDLn.

[0061] The pixels SPX may receive data voltages through the data lines SDL1 to SDLn in response to gate signals supplied through the gate lines SGL1 to SGLm. The pixels SPX may display grayscales corresponding to the data voltages, thereby controlling transmittance of a region where each pixel SPX is disposed.

[0062] Although the source flexible circuit board SFPC1 is shown in the drawings as being connected adjacent to the long sides of the first substrate 100 and the second substrate 300, the embodiment may not be limited thereto. The position at which the first substrate 100 and the second substrate 300 are connected to the source flexible circuit board SFPC1 may be modified as needed. For example, the source flexible circuit board SFPC1 may be disposed adjacent to the short sides of the first substrate 100 and the second substrate 300. In addition, the source flexible circuit board SFPC1 may be disposed on the long sides of the first substrate 100 and the second substrate 300. The source flexible circuit board SFPC1 may be disposed on the short sides of the first substrate 100 and the second substrate 300, and may also be disposed on the long sides and short sides of the first substrate 100 and the second substrate 300, respectively. In addition, although the gate flexible circuit board GFPC1 is shown in the drawings as being connected adjacent to the short sides of the first substrate 100 and the second substrate 300, the embodiment may not be limited thereto. The position at which the first substrate 100 and the second substrate 300 are connected to the gate flexible circuit board GFPC1 may be modified as needed. For example, the gate flexible circuit board GFPC1 may be disposed adjacent to the long sides of the first substrate 100 and the second substrate 300. In addition, the gate flexible circuit board GFPC1 may be disposed on the short sides of the first substrate 100 and the second substrate 300. The gate flexible circuit board GFPC1 may be disposed on the long sides of the first substrate 100 and the second substrate 300, and may also be disposed on the long sides and short sides of the first substrate 100 and the second substrate 300, respectively.

[0063] like Figure 4 As shown in FIG. 1 , the connection wiring 115 may be arranged on the first substrate 100. One end of each of the connection wirings 115a, 115b, 115c, 115d, and 115e may be electrically connected to the data lines SDLr to SDL(r+4), respectively (where r is a natural number). Figure 5 As shown in FIG. 1 , the other end of each of the connection wirings 115a, 115b, 115c, 115d, and 115e may be respectively connected to the connection pads 130. Therefore, the connection pads 130 may be respectively electrically connected to the data lines SDLr to SDL(r+4).

[0064] The gate line SGLr may be disposed to intersect the data lines SDLr to SDL(r+4). The pixels CPXr to CPX(r+4) may be electrically connected to the gate line SGLr.

[0065] Although five connection wirings 115a, 115b, 115c, 115d, and 115e are shown in the drawings, the number of connection wirings 115a, 115b, 115c, 115d, and 115e electrically connected to the data lines SDLr to SDL(r+4) may be greater than or less than five.

[0066] Although the connection wiring 115 is electrically connected to the data lines SDLr to SDL(r+4) in the above description, the embodiment according to the invention is not limited thereto. The connection wiring 115 and the connection pad 130 may be electrically connected to the gate lines SGL1 to SGLm (eg, Figure 2 Hereinafter, the electrical connection of the data lines SDLr to SDL(r+4) is described with reference to a specific display device 1.

[0067] The connection wirings 115a to 115e may include, for example, copper (Cu), but the material of the connection wirings 115a to 115e may not be limited thereto.

[0068] like Figure 5 As shown in FIG. 1 , the source driving chip SDIC1 mounted on the source flexible circuit board SFPC1 can generate data voltages for driving the pixels CPXr to CPX(r+4) electrically connected through the connection pads 130. Therefore, the generated data voltages can be transmitted to the data lines SDLr to SDL(r+4) through the connection pads 130.

[0069] The source flexible circuit board SFPC1 may include a first contact pad CP1 and a second contact pad CP2. The printed circuit board SPCB may include a third contact pad CP3. The source driver chip SDIC1 may be electrically connected to the first contact pad CP1 of the source flexible circuit board SFPC1. The first contact pad CP1 of the source flexible circuit board SFPC1 may be electrically connected to the connection pad 130 disposed on the side surfaces of the first substrate 100 and the second substrate 300 through the adhesive film 400.

[0070] The connection pad 130 may be attached to the source flexible circuit board SFPC1 through the adhesive film 400. For example, the connection pad 130 may be electrically connected to the first contact pad CP1 of the source flexible circuit board SFPC1 through an outer wire bonding (OLB) method using the adhesive film 400.

[0071] In an exemplary embodiment, the adhesive film 400 may be provided to cover the entire connection pad 130, but is not limited thereto. In some embodiments, the adhesive film 400 may be provided to cover a portion of the connection pad 130 and leave a portion thereof exposed.

[0072] In some embodiments, the adhesive film 400 may include an anisotropic conductive film (ACF). When the adhesive film 400 is an anisotropic conductive film, the adhesive film 400 has conductivity only in the area where the connection pad 130 contacts the first contact pad CP1 of the source flexible circuit board SFPC1, and the connection pad 130 may be electrically connected to the first contact pad CP1 of the source flexible circuit board SFPC1. However, the invention is not limited thereto, and in some embodiments, the adhesive film 400 may be omitted. For example, the connection pad 130 and the first contact pad CP1 may be directly in contact with each other to be electrically connected to each other. The connection pad 130 and the first contact pad CP1 may be directly connected to each other by ultrasonic bonding, welding, etc.

[0073] The printed circuit board SPCB may be electrically connected to the source flexible circuit board SFPC1. Specifically, the second contact pad CP2 of the source flexible circuit board SFPC1 may be electrically connected to the third contact pad CP3 of the printed circuit board SPCB, and thus the source flexible circuit board SFPC1 may be electrically connected to the printed circuit board SPCB.

[0074] Therefore, the source driving chip SDIC1 may also be electrically connected to the printed circuit board SPCB.

[0075] In some embodiments, the source flexible circuit board SFPC1 may be provided in the form of a flexible printed circuit board. Specifically, the source flexible circuit board SFPC1 may be provided in the form of a chip on film (COF). Therefore, the data driver SDD may be connected to the first substrate 100 and the second substrate 300 and the printed circuit board SPCB by a tape carrier package (TCP) method, such as by Figure 3 As shown by the dotted line in , the source flexible circuit board SFPC1 may be arranged to be bent to the rear surface of the backlight unit BLU, so that the printed circuit board SPCB may be located on the rear surface of the backlight unit BLU. The source driver chip SDIC1 may be arranged between the backlight unit BLU and the source flexible circuit board SFPC1, but the invention is not limited thereto, and the source driver chip SDIC1 may be arranged on a surface opposite to the surface of the source flexible circuit board SFPC1 facing the backlight unit BLU. In some embodiments, the source driver chip SDIC1 may be arranged on a side surface of the source flexible circuit board SFPC1 facing the backlight unit BLU. For example, the printed circuit board SPCB may be located on the rear surface of the backlight unit BLU, the first contact pad CP1 of the source flexible circuit board SFPC1 may be arranged on the side surface of the display panel DPN, and the source driver chip SDIC1 may face the rear surface of the backlight unit BLU.

[0076] like Figure 5As shown in FIG. 1 , the connection pad 130 may be electrically connected to the connection wiring 115 disposed on the first substrate 100. As described above, the connection pad 130 may be electrically connected to the connection wiring 115, the connection wiring 115 may extend toward the inside of the first substrate 100 (eg, extend in the second direction DR2), and may be electrically connected to the pixel SPX.

[0077] The first substrate 100 may be disposed on one side of the display panel DPN, and the second substrate 300 may face the first substrate 100 .

[0078] Each of the first substrate 100 and the second substrate 300 may be a rigid substrate made of glass, quartz, etc., or may be a flexible substrate made of polyimide or other polymer resins. When a polyimide substrate is used as a substrate, the display panel DPN may have advantages of being bent, curved, folded, or rolled, and thus the display panel DPN may be implemented to operate in various ways.

[0079] The connection wiring 115 disposed on the first substrate 100 may be electrically connected to the data lines SDLr to SDL(r+4) crossing the gate lines SGL1 to SGLm (eg, Figure 4 ).

[0080] like Figure 7 As shown in FIG. 1 , a color filter layer CFL and a sealant SL may be disposed between the first substrate 100 and the second substrate 300. The color filter layer CFL may be used to improve the quality of an image output from the display device 1. Figure 7 As shown in FIG. 1 , the sealant SL may be disposed outside the color filter layer CFL along edges of the two substrates 100 and 300 to prevent leakage of the liquid crystal layer 200 filled between the first substrate 100 and the second substrate 300 .

[0081] The dummy pattern DP may be provided between the first substrate 100 and the second substrate 300 in an area adjacent to the connection pad 130. In an exemplary embodiment, the dummy pattern DP may be fixed to the second substrate 300, and an end of the dummy pattern DP may face the first substrate 100. In addition, an end of the dummy pattern DP may contact a structure on the first substrate 100. For example, an end of the dummy pattern DP may contact the connection wiring 115. The dummy pattern DP may have a planar shape and may be serially connected between one side of the first substrate 100 and one side of the second substrate 300, but the invention is not limited thereto, and the dummy pattern DP may be provided to correspond to an area where the connection pad 130 is provided to have an island shape. The dummy pattern DP may also be provided around the edges of the first substrate 100 and the second substrate 300.

[0082] In an exemplary embodiment, the second substrate 300 may be provided with a common electrode for applying an electric field to the liquid crystal layer 200 together with the pixel electrode of the first substrate 100 , but the invention is not limited thereto, and the first substrate 100 may be provided with both the pixel electrode and the common electrode.

[0083] like Figure 7 As shown in , the display panel DPN may be provided with a first polarization member 110 and a second polarization member 310, each of which selectively transmits a specific light. For example, the first polarization member 110 may be provided between the backlight unit BLU and the first substrate 100, and the second polarization member 310 may be provided on the upper surface of the second substrate 300. However, the invention is not limited thereto.

[0084] The bottom cover BC may be a container having a top opening and a storage space of a predetermined depth. For example, the bottom cover BC may include a bottom portion BC1 and a side wall portion BC2.

[0085] In some embodiments, the bottom portion BC1 may be flat and may be provided in a rectangular shape. However, the present invention is not limited thereto, and in some embodiments, the bottom portion BC1 may have, for example, a predetermined curvature, a circular shape, or a polygonal shape.

[0086] In some embodiments, the sidewall portion BC2 may extend in the third direction DR3 at an edge of the bottom portion BC1 .

[0087] The top cover TC may be provided to surround the periphery of the side surface of the display panel DPN. In some embodiments, the top cover TC may be provided to surround the periphery of the side surface of the display panel DPN and a portion of the upper surface of the display panel DPN. The top cover TC may be fixedly coupled to the bottom cover BC. For example, in some embodiments, the side surface of the top cover TC and the side wall portion BC2 of the bottom cover BC may be fixed by screws or the like, and in other embodiments, the side surface of the top cover TC and the side wall portion BC2 of the bottom cover BC may be fixed by an adhesive member or the like.

[0088] The top cover TC may include first, second, third and fourth top covers TC1, TC2, TC3 and TC4 which may be attached and fixed to each of four side surfaces of the display panel DPN as one body of the top cover TC.

[0089] When referring to Figure 6Referring to the first top cover TC1 of the top cover TC, the first top cover TC1 may include a accommodating portion STP, a first extending portion EX1, and a second extending portion EX2, the accommodating portion STP corresponding to one side surface of the display panel DPN to accommodate the one side surface of the display panel DPN by being arranged around at least a portion of the one side surface of the display panel DPN, the first extending portion EX1 extending from one end of the accommodating portion STP, and the second extending portion EX2 extending from the other end of the accommodating portion STP.

[0090] In some embodiments, the receiving portion STP may be filled with an adhesive material, and the adhesive material may be disposed at a position through which one side surface of the display panel DPN is attached and fixed to the receiving portion STP. However, the invention is not limited thereto, and in some embodiments, the receiving portion STP may be filled with an adhesive material, and the adhesive material may be disposed at a position through which one side surface of the display panel DPN and a portion of an upper surface of the display panel DPN extending from the one side surface are attached and fixed to the receiving portion STP. Furthermore, in some embodiments, the receiving portion STP may be filled with an adhesive material, and the adhesive material may be disposed at a position through which one side surface of the display panel DPN and a portion of an upper surface of the display panel DPN extending from the one side surface and a portion of a lower surface of the display panel DPN extending from the one side surface are attached and fixed to the receiving portion STP.

[0091] In addition, the source flexible circuit board SFPC1 connected to one side surface of the display panel DPN by an external wire bonding (OLB) method may be received by the receiving portion STP, wherein the side surface of the source flexible circuit board SFPC1 and the side surface of the display panel DPN may be attached and fixed together with the receiving portion STP. In addition, as described above, the gate flexible circuit board GFPC1 may be attached and fixed to the receiving portion STP.

[0092] In some embodiments, the first extension portion EX1 may extend from the upper end of the receiving portion STP in the third direction DR3, and the end of the first extension portion EX1 may be arranged to be higher than the display panel DPN in the third direction DR3. However, the invention is not limited thereto, and in some embodiments, the first extension portion EX1 may extend from the receiving portion STP in the third direction DR3, and the end of the first extension portion EX1 may be aligned with the display panel DPN in the third direction DR3. In addition, in some embodiments, the first extension portion EX1 may extend from the receiving portion STP in the third direction DR3, and the end of the first extension portion EX1 may be arranged to be lower than the display panel DPN in the third direction DR3.

[0093] In some embodiments, the second extension portion EX2 may extend from the lower end of the accommodation portion STP along the third direction DR3 and may be coupled to the side wall portion BC2. In some embodiments, the second extension portion EX2 may extend from the accommodation portion STP along the third direction DR3 and may be arranged to be longer than the first extension portion EX1. However, the invention is not limited thereto, and the second extension portion EX2 may extend from the accommodation portion STP along the third direction DR3 and may be arranged to be shorter than the first extension portion EX1. In addition, the second extension portion EX2 may extend from the accommodation portion STP along the third direction DR3 and may be arranged to have the same length as the first extension portion EX1.

[0094] Each of the accommodation portion STP, the first extension portion EX1 and the second extension portion EX2 included in the first top cover TC1 can extend in the first direction DR1. Although the first top cover TC1 has been described above, the second top cover TC2, the third top cover TC3 and the fourth top cover TC4 can have the same shape as the shape of the first top cover TC1. However, the invention is not limited to this. In some embodiments, unlike the first top cover TC1, the second top cover TC2, the third top cover TC3 and the fourth top cover TC4 can have a shape that extends to be flat in the third direction DR3. In some embodiments, the fourth top cover TC4 can have the same shape as the first top cover TC1, and the second top cover TC2 and the third top cover TC3 can have a shape that extends to be flat in the third direction DR3. In some embodiments, the third top cover TC3 can have the same shape as the first top cover TC1, and the second top cover TC2 and the fourth top cover TC4 can have a shape that extends to be flat in the third direction DR3. In some embodiments, the fourth top cover TC4 and the second top cover TC2 can have the same shape as the first top cover TC1, and the third top cover TC3 can have a shape that extends to be flat in the third direction DR3.

[0095] Hereinafter, description will be made based on a first top cover TC1 located on a side surface of a display panel DPN on which a source flexible circuit board SFPC1 is provided by an external wire bonding (OLB) method, and a second top cover TC2 facing the first top cover TC1, and the display panel DPN is located between the first top cover TC1 and the second top cover TC2, assuming that the first top cover TC1, the second top cover TC2, the third top cover TC3 and the fourth top cover TC4 have the same shape.

[0096] Figure 7 According to the embodiment along Figure 2 A cross-sectional view taken along line II' of Figure 8 According to the embodiment along Figure 2 A cross-sectional view taken along line II-II', Fig. 9 is a view showing the relationship between the display panel and the receiving portion.

[0097] Reference Figure 7 The second extension portion EX2 of the first top cover TC1 may be combined with the sidewall portion BC2 of the bottom cover BC to form a storage space in which the backlight unit BLU and the display panel DPN may be located. Although not shown, a support member for supporting a portion of the display panel DPN or the backlight unit BLU may be located in the bottom cover BC.

[0098] One side surface of the display panel DPN may be provided with a connection pad 130 connected to the connection wiring 115. In some embodiments, the connection pad 130 may contact one side surface of the first substrate 100 and one side surface of the second substrate 300. However, the invention is not limited thereto, and in some embodiments, the connection pad 130 may contact only one side surface of the first substrate 100.

[0099] The dummy pattern DP may be disposed between the first substrate 100 and the second substrate 300, and may be aligned with one side surface of the first substrate 100 and one side surface of the second substrate 300 in the third direction DR3. In this case, the connection pad 130 may be in contact with one side surface of the dummy pattern DP. In some embodiments, the dummy pattern DP may be disposed between the first substrate 100 and the second substrate 300, and may be moved in the second direction DR2 from one side surface of the first substrate 100 and one side surface of the second substrate 300, and therefore, the connection pad 130 may not be in contact with the dummy pattern DP. In addition, in some embodiments, even when the dummy pattern DP is disposed between the first substrate 100 and the second substrate 300 and moves in the second direction DR2 from one side surface of the first substrate 100 and one side surface of the second substrate 300, the connection pad 130 may be disposed on the inner side of the first substrate 100 and the second substrate 300 and may be in contact with the dummy pattern DP.

[0100] The display panel DPN may include a source flexible circuit board SFPC1 electrically connected to a connection pad 130 disposed on a side surface of the display panel DPN. Specifically, a first contact pad CP1 of the source flexible circuit board SFPC1 may be electrically connected to the connection pad 130 through an adhesive film 400 .

[0101] A portion of the source flexible circuit board SFPC1 may be disposed or bent to the rear surface of the backlight unit BLU, and the second contact pad CP2 of the source flexible circuit board SFPC1 may face the rear surface of the backlight unit BLU. Therefore, the printed circuit board SPCB connected to the second contact pad CP2 of the source flexible circuit board SFPC1 may also be located on the rear surface of the backlight unit BLU, and the source driver chip SDIC1 may face the side surface of the backlight unit BLU. In some embodiments, the source driver chip SDIC1 may be located on the rear surface of the backlight unit BLU, and the source driver chip SDIC1 and the second contact pad CP2 of the source flexible circuit board SFPC1 may be located on the side surface of the backlight unit BLU.

[0102] The first top cover TC1 may include a receiving portion STP, a first extending portion EX1, and a second extending portion EX2.

[0103] The receiving portion STP may include a first portion P1 , a second portion P2 extending from one end of the first portion P1 , and a third portion P3 extending from the other end of the first portion P1 .

[0104] The first portion P1 may be a vertical surface extending in the third direction DR3. The first portion P1 may face one side surface of the display panel DPN where the source flexible circuit board SFPC1 is disposed by an outside wire bonding (OLB) method. The first portion P1 may overlap a portion of one side surface of the first substrate 100 and a portion of one side surface of the second substrate 300, the dummy pattern DP, the connection pad 130, and the first contact pad CP1 of the source flexible circuit board SFPC1 in the second direction DR2.

[0105] The second portion P2 may be an inclined surface extending from the first portion P1 in the third direction DR3, and may be inclined at a predetermined angle from the upper end of the first portion P1 toward the display panel DPN. The second portion P2 may be an inclined surface having an acute inclination, and may extend from the first portion P1 in the third direction DR3 relative to the second direction DR2. The second portion P2 may face one side edge of the second substrate 300. However, the invention is not limited thereto, and in some embodiments, the second portion P2 may face the upper surface of the second substrate 300.

[0106] The third portion P3 may be an inclined surface extending from the first portion P1 along the third direction DR3 and inclined at a predetermined angle from the lower end of the first portion P1 toward the display panel DPN. The third portion P3 may be an inclined surface having an acute inclination and may extend from the first portion P1 along the third direction DR3 relative to the second direction DR2. Figure 7 As shown in FIG. 1 , the third portion P3 may face one side edge of the first substrate 100 and a bent portion of the source flexible circuit board SFPC1 .

[0107] The first extension EX1 may be an inclined surface extending from the second portion P2 in the third direction DR3 and inclined at a predetermined angle from the upper end of the second portion P2 toward the opposite side of the display panel DPN (i.e., away from the display panel DPN). The first extension EX1 may be an inclined surface having an obtuse inclination and may extend from the second portion P2 in the third direction DR3 relative to the second direction DR2. In this way, since at least the first extension EX1 is angled away from the display area DA, the perception of the frame of the display device 1 adjacent to the display area DA may be reduced.

[0108] The second extension EX2 may be a vertical surface extending from the third portion P3 along the third direction DR3. The second extension EX2 may be fixed to the sidewall BC2 of the bottom cover BC, and in order to stably fix the second extension EX2 to the sidewall BC2, the length of the second extension EX2 may be longer than the length of the first extension EX1.

[0109] The first adhesive member AM1 may be located between the first top cover TC1 and the display panel DPN. The first adhesive member AM1 may be located between the receiving portion STP and the display panel DPN. The first adhesive member AM1 may be distributed between the first portion P1 and the source flexible circuit board SFPC1 and between the second portion P2 and the second substrate 300. The first adhesive member AM1 may include a resin. For example, the first adhesive member AM1 may include an oligomer, urethane acrylate, a monomer, a photoinitiator, a solvent, and a ketone.

[0110] The thickness of the first adhesive member AM1 disposed between the first portion P1 and the source flexible circuit board SFPC1 in the second direction DR2 may be different from the thickness of the first adhesive member AM1 disposed between the second portion P2 and the second substrate 300 in the second direction DR2. For example, the thickness of the first adhesive member AM1 disposed between the second portion P2 and the second substrate 300 in the second direction DR2 may be greater than the thickness of the first adhesive member AM1 disposed between the first portion P1 and the source flexible circuit board SFPC1 in the second direction DR2. However, the present invention is not limited thereto, and the thickness of the first adhesive member AM1 may be variously changed according to the shape of one side surface of the display panel DPN, the shape of the source flexible circuit board SFPC1, the shape of the first top cover TC1, and the arrangement therebetween.

[0111] In some embodiments, the first adhesive member AM1 disposed between the second portion P2 and the second substrate 300 may be disposed on a portion of the side surface of the second substrate 300, an edge of the second substrate 300, and a portion of the upper surface of the second substrate 300. Therefore, the contact area between the first top cover TC1 and the display panel DPN may be further increased. In this way, since the first top cover TC1 includes the accommodation portion STP, the first adhesive member AM1 may be distributed between the first portion P1 and the source flexible circuit board SFPC1 and between the second portion P2 and a portion of the side surface of the second substrate 300, an edge of the second substrate 300, and a portion of the upper surface of the second substrate 300. Therefore, one side surface of the display panel DPN on which the source flexible circuit board SFPC1 is disposed may be more firmly attached and fixed by an external wire bonding (OLB) method.

[0112] Reference Figure 8 , the second top cover TC2 may include a receiving portion STP, a first extending portion EX1, and a second extending portion EX2.

[0113] The receiving portion STP may include a first portion P1 , a second portion P2 extending from one end of the first portion P1 , and a third portion P3 extending from the other end of the first portion P1 .

[0114] The first portion P1 may face the other side of the display panel DPN. The first portion P1 may overlap the other side surface of the first substrate 100, a portion of the other side surface of the second substrate 300, and the dummy pattern DP in the second direction DR2.

[0115] The second portion P2 may be an inclined surface extending from the first portion P1 in the third direction DR3 and inclined at a predetermined angle from the upper end of the first portion P1 toward the display panel DPN. The second portion P2 may be an inclined surface having an obtuse inclination and extending from the first portion P1 in the third direction DR3 relative to the second direction DR2. The second portion P2 may face the other side edge of the second substrate 300. In some embodiments, the second portion P2 may face the upper surface of the second substrate 300.

[0116] The third portion P3 may be an inclined surface extending from the first portion P1 along the third direction DR3 and inclined at a predetermined angle from the lower end of the first portion P1 toward the display panel DPN. Illustratively, the third portion P3 may be an inclined surface having an obtuse inclination and may extend from the first portion P1 along the third direction DR3 relative to the second direction DR2. The third portion P3 may face the other side edge of the first substrate 100.

[0117] The first extension EX1 may be an inclined surface extending from the second portion P2 in the third direction DR3 and inclined at a predetermined angle from the upper end of the second portion P2 toward the opposite side of the display panel DPN. The first extension EX1 may be an inclined surface having an acute inclination and may extend from the second portion P2 in the third direction DR3 relative to the second direction DR2. In this way, since at least the first extension EX1 is angled away from the display area DA, the perception of the frame of the display device 1 adjacent to the display area DA may be reduced.

[0118] The second extension EX2 may be a vertical surface extending from the third portion P3 along the third direction DR3. The second extension EX2 may be fixed to the sidewall BC2 of the bottom cover BC, and in order to stably fix the second extension EX2 to the sidewall BC2, the length of the second extension EX2 may be longer than the length of the first extension EX1.

[0119] The second adhesive member AM2 may be disposed between the second top cover TC2 and the display panel DPN. Illustratively, the second adhesive member AM2 may be disposed between the receiving portion STP and the display panel DPN. The second adhesive member AM2 may be distributed between the first substrate 100 and the first portion P1, between the second substrate 300 and the first portion P1, and between the dummy pattern DP and the first portion P1. In addition, the second adhesive member AM2 may be distributed between the second portion P2 and the second substrate 300, and between the third portion P3 and the first substrate 100.

[0120] The thickness of the second adhesive member AM2 disposed between the first substrate 100 and the first portion P1, between the second substrate 300 and the first portion P1, and between the dummy pattern DP and the first portion P1 in the second direction DR2, the thickness of the second adhesive member AM2 disposed between the second portion P2 and the second substrate 300 in the second direction DR2, and the thickness of the second adhesive member AM2 disposed between the third portion P3 and the first substrate 100 in the second direction DR2 may be different from each other. The thickness of the second adhesive member AM2 disposed between the second portion P2 and the second substrate 300 in the second direction DR2 may be smaller than the thickness of the second adhesive member AM2 disposed between the first substrate 100 and the first portion P1, between the second substrate 300 and the first portion P1, and between the dummy pattern DP and the first portion P1 in the second direction DR2. In addition, the thickness of the second adhesive member AM2 disposed between the second portion P2 and the second substrate 300 in the second direction DR2 may be smaller than the thickness of the second adhesive member AM2 disposed between the third portion P3 and the first substrate 100 in the second direction DR2. In addition, the thickness of the second adhesive member AM2 disposed between the first substrate 100 and the first portion P1, between the second substrate 300 and the first portion P1, and between the dummy pattern DP and the first portion P1 in the second direction DR2 may be greater than the thickness of the second adhesive member AM2 disposed between the third portion P3 and the first substrate 100 in the second direction DR2. However, the invention is not limited thereto, and the thickness of the second adhesive member AM2 may be variously changed according to the shape of the other side surface of the display panel DPN, the shape of the second top cover TC2, and the arrangement therebetween.

[0121] In some embodiments, the second adhesive member AM2 disposed between the second portion P2 and the second substrate 300 may be disposed on a portion of the side surface of the second substrate 300, an edge of the second substrate 300, and a portion of the upper surface of the second substrate 300, and the second adhesive member AM2 disposed between the third portion P3 and the first substrate 100 may be disposed on a portion of the side surface of the first substrate 100, an edge of the first substrate 100, and a portion of the lower surface of the first substrate 100. In this way, since the second top cover TC2 includes the receiving portion STP, the second adhesive member AM2 may be distributed between the first portion P1 and the first substrate 100, the second substrate 300 and the dummy pattern DP, between the second portion P2 and the second substrate 300, and between the third portion P3 and the first substrate 100. Therefore, the other side surface of the display panel DPN opposite to the side surface corresponding to the first top cover TC1 may be firmly attached and fixed.

[0122] In addition, the distribution of the first adhesive member AM1 disposed between one side surface of the display panel DPN and the first top cover TC1 may be different from the distribution of the second adhesive member AM2 disposed between the other side surface of the display panel DPN and the second top cover TC2.

[0123] Reference Fig. 9 , one side surface of the display panel DPN may be disposed on or beside the first portion P1, the second portion P2, and the third portion P3 of the accommodation portion STP. A first length d1 of the first portion P1 in the third direction DR3 may be shorter than a second length d2 of one side surface of the display panel DPN in the third direction DR3, and a third length d3 of the accommodation portion STP in the third direction DR3 may be longer than the second length d2 of one side surface of the display panel DPN in the third direction DR3.

[0124] One side surface of the display panel DPN can therefore be accommodated by the receiving portion STP, wherein the first portion P1 of the receiving portion STP can be completely overlapped with one side surface portion of the display panel DPN, and the second portion P2 and the third portion P3 of the receiving portion STP can be partially overlapped with one side surface portion of the display panel DPN. In some embodiments, one side surface of the display panel DPN can be accommodated in the receiving portion STP, wherein the first portion P1 and the third portion P3 of the receiving portion STP can be partially overlapped with one side surface portion of the display panel DPN, but the second portion P2 of the receiving portion STP may not be partially overlapped with one side surface portion of the display panel DPN. In addition, in some embodiments, one side surface of the display panel DPN can be accommodated by the receiving portion STP, wherein the first portion P1 and the second portion P2 of the receiving portion STP can be partially overlapped with one side surface portion of the display panel DPN, but the third portion P3 of the receiving portion STP may not be partially overlapped with one side surface portion of the display panel DPN. In this way, since one side surface of the display panel DPN can be accommodated by the receiving portion STP, the display panel DPN and the first top cover TC1 can be properly aligned with each other. In addition, a space may be formed between the first portion P1 and one side surface portion of the display panel DPN, and the first adhesive member AM1 may be disposed in the space to firmly adhere and fix them together. Fig. 9 The first header TC1 is described, but the second header TC2 , the third header TC3 , and the fourth header TC4 may be similarly arranged according to the above description.

[0125] In each of the above descriptions, one or more of the extensions EX1 and EX2 may extend in the third direction DR3, thereby being offset from each other with the accommodation portion STP in the second direction DR2 and / or the third direction DR3. In this regard, one or more of the portions P1, P2, and P3 of the accommodation portion STP may also extend in the third direction DR3, thereby being offset from each other with one or more of the extensions EX1 and EX2 in the second direction DR2 and / or the third direction DR3. In these aspects, since the extensions EX1 and EX2 and one or more of the portions P1, P2, and P3 may be disposed obliquely from an adjacent one of the connecting portions, the offset of the above-mentioned extensions EX1 and EX2 and one or more of the portions P1, P2, and P3 may be disposed. In these ways, the accommodation portion STP may be disposed around the operational connection for the side surface of the pixel SPX and the display panel DPN. As such, operative connections for the side surfaces of the pixels SPX and display panel DPN may be properly aligned with the top covers TC1 and TC2, and the perception of the bezel may be reduced to enhance visibility of images displayed by the display device 1 of the tiled display device TD therethrough.

[0126] Figures 10 to 13 is a view showing that a display panel is attached to a top cover according to an embodiment.

[0127] Reference Fig.10 The first adhesive member AM1 may be disposed between the first top cover TC1 and one side surface of the display panel DPN. One side surface of the display panel DPN may be formed with an external lead bonding part OLBP, and the first adhesive member AM1 may be disposed on one side surface of the accommodating part STP facing the external lead bonding part OLBP.

[0128] In some embodiments, the first bonding member AM1 may be positioned between the first portion P1 and the second portion P2 of the receiving portion STP. In some embodiments, the first bonding member AM1 may be positioned only on the first portion P1. In some embodiments, the first bonding member AM1 may be positioned only on the second portion P2. In some embodiments, the first bonding member AM1 may be disposed with the receiving portion STP, and the first bonding members AM1 may be arranged to be spaced apart from each other relative to the receiving portion STP.

[0129] Reference Fig.11When the display panel DPN is pushed in a direction opposite to the second direction DR2 (or when the first top cover TC1 is pushed in the second direction DR2), the first adhesive member AM1 located between the first part P1 and the second part P2 of the accommodating part STP can be evenly distributed between the first part P1 and the external lead bonding part OLBP, between the second part P2 and a portion of the side surface of the second substrate 300, between the second part P2 and an edge of the second substrate 300, and between the second part P2 and a portion of the upper surface of the second substrate 300.

[0130] Due to the difference in length between the first portion P1 and one side surface of the display panel DPN, a space is formed between the first portion P1 and the external lead bonding portion OLBP, and the first adhesive member AM1 can move into the space. The second portion P2 is formed by an inclined surface extending from the first portion P1 in the third direction DR3 and inclined at a predetermined angle from the first portion P1, so the first adhesive member AM1 can move between a portion of the side surface of the second substrate 300, an edge of the second substrate 300, and a portion of the upper surface of the second substrate 300. Therefore, the external lead bonding portion OLBP and the first top cover TC1 formed with one side surface of the display panel DPN can be firmly attached and fixed.

[0131] Reference Fig.12 The second adhesive member AM2 may be disposed between the second top cover TC2 and the other side surface of the display panel DPN opposite to the first top cover TC1. The second adhesive member AM2 may be disposed on one side surface of the receiving part STP facing the other side surface of the display panel DPN.

[0132] Reference Fig.13 When the display panel DPN is pushed in the second direction DR2 (or when the second top cover TC2 is pushed in the direction opposite to the second direction DR2), the second adhesive member AM2 located between the first part P1 and the second part P2 of the accommodating part STP can be evenly distributed between the first part P1 and the other side surface of the display panel DPN, between the second part P2 and a portion of the side surface of the second substrate 300, between the second part P2 and an edge of the second substrate 300, between the second part P2 and a portion of the upper surface of the second substrate 300, between the third part P3 and a portion of the side surface of the first substrate 100, between the third part P3 and an edge of the first substrate 100, and between the third part P3 and a portion of the lower surface of the first substrate 100.

[0133] Due to the difference in length between the first part P1 and the other side surface of the display panel DPN, a space is formed between the first part P1 and the other side surface of the display panel DPN. The second adhesive member AM2 can move into the space. The second part P2 is formed by an inclined surface extending from the first part P1 in the third direction DR3 and tilted at a predetermined angle from the first part P1, so the second adhesive member AM2 can move between a portion of the side surface of the second substrate 300, the edge of the second substrate 300, and a portion of the upper surface of the second substrate 300. The third part P3 is formed by an inclined surface extending from the first part P1 in the third direction DR3 and tilted at a predetermined angle from the first part P1, so the second adhesive member AM2 can move between a portion of the side surface of the first substrate 100, the edge of the first substrate 100, and a portion of the lower surface of the first substrate 100. Therefore, the other side surface of the display panel DPN and the second top cover TC2 can be firmly attached and fixed. Although not shown, the third and fourth top covers TC3 and TC4 may be attached and fixed to the side surface of the display panel DPN in the same manner as any one of the first and second top covers TC1 and TC2 .

[0134] Fig.14 According to another embodiment, Figure 2 A cross-sectional view taken along line II' of Fig.15 According to another embodiment, Figure 2 A cross-sectional view taken along line II-II', Fig.16 It shows that according to Fig.14 and Fig.15 A view showing the relationship between a display panel and a receiving portion of any one of the above. Figures 14 to 16 Examples and Figures 7 to 9 The difference of the above-described embodiment is that the second extension portion EX2_1 of the top cover TC includes an inclined portion EX2a and a vertical portion EX2b.

[0135] Reference Figures 14 to 16 , each of the first top cover TC1_1 and the second top cover TC2_1 may include a receiving portion STP, a first extending portion EX1, and a second extending portion EX2_1.

[0136] The receiving portion STP of each of the first top cover TC1_1 and the second top cover TC2_1 may include a first portion P1, a second portion P2 extending from one end of the first portion P1, and a third portion P3 extending from the other end of the first portion P1. The first extension portion EX1 may be an inclined surface extending from the second portion P2 in the third direction DR3 and inclined at a predetermined angle from the second portion P2.

[0137] The second extension portion EX2_1 of each of the first and second top caps TC1_1 and TC2_1 may include an inclined portion EX2a and a vertical portion EX2b.

[0138] The inclined portion EX2a of the first top cover TC1_1 may be an inclined surface extending from the third portion P3 along the third direction DR3 and inclined at a predetermined angle from the third portion P3. The inclined portion EX2a may be an inclined surface extending from the third portion P3 and having an obtuse inclination relative to the second direction DR2 along the third direction DR3.

[0139] The inclined portion EX2a of the second top cover TC2_1 may be an inclined surface extending from the third portion P3 along the third direction DR3 and inclined at a predetermined angle from the third portion P3. The inclined portion EX2a may be an inclined surface extending from the third portion P3 and having an acute inclination along the third direction DR3 relative to the second direction DR2.

[0140] The vertical portion EX2b of each of the first top cover TC1_1 and the second top cover TC2_1 may be a vertical surface extending from the inclined portion EX2a along the third direction DR3 and may be fixed to the bottom cover BC_1. For example, the vertical portion EX2b may be fixed to the side wall portion BC2 by an adhesive material or may be fixed to the side wall portion BC2 by an attachment member such as a screw.

[0141] One side surface of the display panel DPN may be disposed on the first portion P1, the second portion P2, and the third portion P3 of the accommodation portion STP. A first length d1 of the first portion P1 in the third direction DR3 may be shorter than a second length d2 of one side surface of the display panel DPN in the third direction DR3, and a third length d3 of the accommodation portion STP in the third direction DR3 may be longer than the second length d2 of one side surface of the display panel DPN in the third direction DR3.

[0142] Since the second extension portion EX2_1 of each of the first and second top covers TC1_1 and TC2_1 includes the inclined portion EX2a and the vertical portion EX2b, alignment of the display panel DPN with the first and second top covers TC1_1 and TC2_1 may be further facilitated to obtain a proper match therebetween.

[0143] In each of the above descriptions, one or more of the extensions EX1 and EX2_1 may extend in the third direction DR3, thereby being offset from each other with the accommodation portion STP in the second direction DR2 and / or the third direction DR3. In this regard, one or more of the portions P1, P2, and P3 of the accommodation portion STP may also extend in the third direction DR3, thereby being offset from each other with one or more of the extensions EX1 and EX2_1 in the second direction DR2 and / or the third direction DR3. In these aspects, since the extensions EX1 and EX2_1 and one or more of the portions P1, P2, and P3 may be disposed obliquely from an adjacent one of the connecting portions, the offset of the above-mentioned extensions EX1 and EX2_1 and one or more of the portions P1, P2, and P3 may be disposed. In these ways, the accommodation portion STP may be disposed around the operational connection for the side surface of the pixel SPX and the display panel DPN. As such, operative connections for the side surfaces of the pixels SPX and display panel DPN may be properly aligned with the top covers TC1_1 and TC2_1 , and the perception of the bezel may be reduced to enhance visibility of images displayed by the display device 1 through which the tiled display device TD is attached.

[0144] Fig.17 According to another embodiment, Figure 2 A cross-sectional view taken along line II' of Fig.18 According to another embodiment, Figure 2 A cross-sectional view taken along line II-II', Fig.19 It shows that according to Fig.17 and Fig.18 A view showing the relationship between a display panel and a receiving portion of any one of the above. Figures 17 to 19 Examples and Figures 7 to 9 The difference of the above-described embodiment is that the first extension portion EX1_1 of the top cover TC is provided as a vertical surface extending in the third direction DR3.

[0145] Reference Figures 17 to 19 , each of the first top cover TC1_2 and the second top cover TC2_2 may include a receiving portion STP, a first extending portion EX1_1, and a second extending portion EX2.

[0146] The receiving portion STP of each of the first and second caps TC1_2 and TC2_2 may include a first portion P1, a second portion P2 extending from one end of the first portion P1, and a third portion P3 extending from the other end of the first portion P1. The first extension EX1_1 may be a vertical surface vertically extending from the second portion P2 in the third direction DR3.

[0147] The first extension portion EX1_1 of each of the first top cover TC1_2 and the second top cover TC2_2 may be a vertical surface extending from the second portion P2 in the third direction DR3. In this way, since the first extension portion EX1_1 of each of the first top cover TC1_2 and the second top cover TC2_2 is a vertical surface extending from the second portion P2 in the third direction DR3, the perception of the frame of the display device 1 may be reduced, and thus, the perception of an immersive image among the plurality of display devices 1 of the spliced ​​display device TD may be achieved.

[0148] Fig. 20 According to another embodiment, Figure 2 A cross-sectional view taken along line II' of Fig.21 According to another embodiment, Figure 2 A cross-sectional view taken along line II-II', Fig. 22 is a view showing the relationship between the display panel and the receiving portion. Figure 20 to Figure 22 Examples and Figures 7 to 9 The difference of the above-described embodiment is that the receiving portion STP_1 of the top cover TC includes a first portion P1 and a second portion P2.

[0149] Reference Figure 20 to Figure 22 , each of the first top cover TC1_3 and the second top cover TC2_3 may include a receiving portion STP_1, a first extending portion EX1, and a second extending portion EX2.

[0150] The receiving portion STP_1 of each of the first top cover TC1_3 and the second top cover TC2_3 may include a first portion P1 and a second portion P2 extending from one end of the first portion P1. The first portion P1 may be a vertical surface extending in the third direction DR3, and the second portion P2 may be an inclined surface extending from the first portion P1 in the third direction DR3 and inclined from the first portion P1 at a predetermined angle.

[0151] The second portion P2 of the first top cover TC1_3 may be an inclined surface extending from the first portion P1 and having an acute inclination in the third direction DR3 with respect to the second direction DR2. The second portion P2 may face one side edge of the second substrate 300.

[0152] The second portion P2 of the second top cover TC2_3 may be an inclined surface extending from the first portion P1 and having an obtuse inclination in the third direction DR3 with respect to the second direction DR2. The second portion P2 may face the other side edge of the second substrate 300.

[0153] The first extension EX1 may be an inclined surface extending from the second portion P2 in the third direction DR3 and may be inclined at a predetermined angle from the second portion P2. The second extension EX2 may be a vertical surface extending from the first portion P1 along the third direction DR3. Since the receiving portion STP_1 of each of the first top cover TC1_3 and the second top cover TC2_3 includes only the first portion P1 and the second portion P2, the bottom cover BC may be facilitated to be fixed to the first top cover TC1_3 and the second top cover TC2_3.

[0154] Fig.23 1 is a cross-sectional view schematically showing a connection portion of a spliced ​​display device according to an embodiment. Since the configurations of the respective display devices 1 constituting the spliced ​​display device TD have been described above, further description is omitted.

[0155] Reference Fig.23 As described above, the side surface of the display panel DPN included in each display device 1 may be more firmly attached and fixed to the receiving portion STP of the first and second top covers TC1 and TC2, and the first and second extension portions EX1 and EX2.

[0156] In a state where the display panel DPN is stably fixed to the first top cover TC1 and the second top cover TC2, the individual display devices 1 can be connected to each other by an adhesive member AML provided between the first top cover TC1 and the second top cover TC2 of each of the individual display devices 1. In addition, since the first extension portions EX1 of the first top cover TC1 and the second top cover TC2 are inclined surfaces facing each other, the perception of the bezel of each of the individual display devices 1 can be reduced, thereby avoiding the perception that the bezel interferes with the perception of the image to be displayed by one or more individual display devices 1 of the spliced ​​display device TD or that the bezel distorts the perception of the image to be displayed by one or more individual display devices 1 of the spliced ​​display device TD.

[0157] Although the embodiments of the invention have been shown in the accompanying drawings and disclosed above, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as described in the accompanying claims.

Claims

1. A display device, the display device include: Display panel; as well as a top cover, arranged around a side surface of the display panel, The top cover includes: a receiving portion corresponding to the side surface of the display panel; a first extending portion extending from an upper end of the receiving portion; and a second extending portion extending from a lower end of the receiving portion, wherein the first extending portion is offset from the second extending portion, and The accommodating portion includes: a first portion, which serves as a vertical surface and has a length shorter than that of the side surface of the display panel; a second portion, which serves as an inclined surface extending from an upper end of the first portion toward the side surface of the display panel; and a third portion, which serves as an inclined surface extending from a lower end of the first portion toward the side surface of the display panel.

2. The display device according to claim 1, in, The first portion faces the side surface of the display panel, The angle between the first portion and the second portion is an obtuse angle, and An angle between the first portion and the third portion is an obtuse angle.

3. The display device according to claim 1, in, The first extension includes an inclined surface extending from the second portion away from the side surface of the display panel.

4. The display device according to claim 3, in, The second extension includes a vertical surface extending from the third portion.

5. The display device according to claim 4, further comprising: include: A bottom cover, disposed below the display panel and comprising a bottom portion and a side wall portion, Wherein, the second extension portion is fixed to the side wall portion.

6. The display device according to claim 5, in, The side surface of the display panel is separated from the first portion of the receiving part.

7. The display device according to claim 6, further comprising: include: An adhesive member is disposed between the first portion of the receiving part and the side surface of the display panel.

8. The display device according to claim 7, in, The second portion of the receiving portion faces an upper edge of the display panel, and the third portion of the receiving portion faces a lower edge of the display panel.

9. The display device according to claim 8, in, The adhesive member is disposed between the second portion of the receiving part and the display panel.

10. A display device, the display device include: The display panel includes a first substrate, a second substrate facing the first substrate, a connection wiring disposed on the first substrate, and a connection pad disposed on the first substrate and the second substrate and electrically connected to the connection wiring; as well as a top cover, attached to the display panel, The top cover includes: a receiving portion corresponding to the side surface of the first substrate, the side surface of the second substrate and the connection pad; a first extending portion extending from the upper end of the receiving portion; and a second extending portion extending from the lower end of the receiving portion, wherein the first extending portion is offset from the second extending portion. The receiving portion includes: a first portion as a vertical surface; a second portion as an inclined surface extending from an upper end of the first portion toward the side surface of the second substrate; and a third portion as an inclined surface extending from a lower end of the first portion toward the side surface of the first substrate, and A length of the first portion in the first direction is shorter than a length of a side surface of the display panel in the first direction.

11. The display device according to claim 10, in, The first portion faces the side surface of the display panel, The angle between the first portion and the second portion is an obtuse angle, and An angle between the first portion and the third portion is an obtuse angle.

12. The display device according to claim 10, in, The first extension portion is an inclined surface extending from the second portion away from the side surface of the display panel, and The second extension is a vertical surface extending from the third portion.

13. The display device according to claim 12, in, The first portion of the receiving portion is separated from the connection pad.

14. The display device according to claim 13, wherein the display device further comprises: include: An adhesive member is disposed between the first portion of the receiving portion and the connection pad.

15. The display device according to claim 14, in, The second portion of the receiving portion faces an upper edge of the second substrate, and the third portion of the receiving portion faces a lower edge of the first substrate.

16. The display device according to claim 15, in, The adhesive member is disposed between the second portion of the receiving part and the second substrate, and the adhesive member is disposed on the side surface of the second substrate and a portion of an upper surface of the second substrate.

17. The display device according to claim 16, further comprising: include: a flexible circuit board, electrically connected to the connection pads, Wherein, the flexible circuit board is arranged between the adhesive member and the connection pad.

18. The display device according to claim 17, wherein the display device further comprises: include: A contact pad is disposed on the surface of the flexible circuit board, Wherein, the contact pad is in contact with the connection pad via an adhesive film.

19. The display device according to claim 18, in, The adhesive member includes a resin, and the adhesive film includes an anisotropic conductive film.

20. The display device according to claim 19, in, The surface of the flexible circuit board is attached to the first portion of the accommodation part through the adhesive member.

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