Display device and electronic device

Abstract

The present invention relates to a display device and an electronic device in which the attachment surface-area of a driving circuit board can be minimized in a curved or diagonal area, the display device comprising: a display panel including a display area and a non-display area; a first circuit board, which is connected to the non-display area of the display panel and is bendable; a driving circuit disposed on the first circuit board; and a second circuit board connected to the first circuit board, wherein the first circuit board includes a first side overlapping the display panel at the top side of the driving circuit and a second side overlapping the second circuit board at the bottom side of the driving circuit, the first side being disposed between the display area and a pad of the display panel, and the extension direction of the first side intersecting the extension direction of the second side.

Description

Display devices and electronic devices

[0001] The present invention relates to a display device, and more particularly, to a display device and electronic device capable of minimizing the attachment area of ​​a driving circuit board in a curved or diagonal shape area.

[0002] Organic light-emitting diode (OLED) displays (OLEDs) are self-luminous and, unlike liquid crystal displays (LCDs), do not require a separate light source, allowing for reduced thickness and weight. Furthermore, OLEDs exhibit high-quality characteristics, such as low power consumption, high brightness, and fast response times, making them attractive as next-generation display devices for TVs, monitors, and portable electronic devices.

[0003] The purpose of the present invention is to provide a display device and an electronic device capable of minimizing the attachment area of ​​a driving circuit board in a curved or diagonal shape area.

[0004] The tasks of the present invention are not limited to the tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art from the description below.

[0005] According to one embodiment of the present invention for achieving the above object, a display device comprises: a display panel including a display area and a non-display area; a first circuit board connected to the non-display area of ​​the display panel and being bendable; a driving circuit disposed on the first circuit board; and a second circuit board connected to the first circuit board; wherein the first circuit board includes a first side overlapping the display panel on an upper side of the driving circuit and a second side overlapping the second circuit board on a lower side of the driving circuit, the first side being disposed between the display area and a pad of the display panel, and an extension direction of the first side intersecting an extension direction of the second side.

[0006] The angle between the extension direction of the first side and the extension direction of the second side is greater than 0 degrees and less than 90 degrees.

[0007] The angle between the extension direction of the first side and the extension direction of the second side is 3 degrees.

[0008] The entirety of the first side overlaps the display panel, and the entirety of the second side overlaps the second circuit board.

[0009] The first side contacts the display panel, and the second side contacts the second circuit board.

[0010] The first circuit board further includes a first groove (51) arranged on a third side between one side of the first side and one side of the second side; and a second groove (52) arranged on a fourth side between the other side of the first side and the other side of the second side.

[0011] The first groove and the second groove are arranged to face each other.

[0012] An imaginary line passing through the first groove and the second groove intersects the extension direction of the first side.

[0013] An imaginary line passing through the first groove and the second groove is parallel to the extension direction of the second side.

[0014] A virtual line passing through the first groove and the second groove is arranged between the first side and the driving circuit.

[0015] A virtual line passing through the first groove and the second groove is arranged between the second side and the driving circuit.

[0016] The virtual line passing through the first groove and the second groove is parallel to the extension direction of the driving circuit.

[0017] The extension direction of the above driving circuit is parallel to the extension direction of the second side, and an imaginary line passing through the first groove and the second groove is parallel to the extension direction of the second side.

[0018] A virtual line passing through the first groove and the second groove intersects the extension direction of the driving circuit.

[0019] The extension direction of the above driving circuit is parallel to the extension direction of the first side, and an imaginary line passing through the first groove and the second groove is parallel to the extension direction of the second side.

[0020] The first groove of the third side is sunken toward the fourth side, and the second groove of the fourth side is sunken toward the third side.

[0021] The edge of the display panel overlapping the first circuit board includes a first curved portion (CV1).

[0022] The edge of the above display area includes a second curved portion (CV2) arranged corresponding to the first curved portion.

[0023] The first side is positioned in a non-display area between the first curved portion and the second curved portion.

[0024] The above first side is parallel to the tangent line (LL) of the above first curved portion.

[0025] An imaginary straight line (L2) that intersects the first side perpendicularly and passes through the center of the first side perpendicularly intersects the tangent line of the first curved portion.

[0026] The first circuit board further includes a plurality of panel terminals (P1) connected to the display panel, and an imaginary straight line perpendicular to the first side and passing through the center of the first side passes through the center of one of the plurality of panel terminals.

[0027] It is connected to the above driving circuit and further includes a plurality of data lines (DL) arranged in the display area, and any one of the panel terminals is connected to any one of the data lines located at the center of the plurality of data lines.

[0028] The above one panel terminal is a panel terminal located at the center among the plurality of panel terminals.

[0029] The above one panel terminal is a panel terminal located at the center among the plurality of panel terminals.

[0030] An edge of the display panel overlapping the first circuit board includes a first diagonal portion.

[0031] The edge of the above display area includes a second diagonal portion arranged corresponding to the first diagonal portion.

[0032] The above first variable is positioned in a non-display area between the first diagonal portion and the second diagonal portion.

[0033] The above first side is parallel to the above first diagonal portion.

[0034] An imaginary straight line that intersects the first side perpendicularly and passes through the center of the first side perpendicularly intersects the first diagonal portion.

[0035] The first circuit board further includes a panel terminal connected to the display panel, the panel terminal extending in a direction perpendicular to the extension direction of the first side.

[0036] The first circuit board further includes a panel terminal connected to the display panel, the panel terminal extending in a direction perpendicular to the extension direction of the second side.

[0037] The first circuit board further includes a plurality of panel terminals connected to the display panel, and the arrangement direction of the plurality of panel terminals is parallel to the extension direction of the first side.

[0038] It further includes a plurality of pads (PD1) arranged on the display panel and connected to the plurality of panel terminals respectively, and the arrangement direction of the plurality of pads is parallel to the extension direction of the first side.

[0039] The first circuit board includes a plurality of panel terminals and a plurality of connection lines (CL) connected to the driving circuit, the extension direction of the driving circuit being parallel to the extension direction of the second side, the plurality of connection lines having lengths that gradually increase along the extension direction of the driving circuit, and the plurality of connection lines having a greater length have a greater width.

[0040] The first circuit board further includes a plurality of board terminals connected to the second circuit board, and the arrangement direction of the plurality of board terminals is parallel to the extension direction of the second side.

[0041] The first circuit board further includes a trench (TRC) disposed between the first groove and the second groove.

[0042] The above trench connects the first groove and the second groove.

[0043] The first circuit board further includes a plurality of trenches (TRC') arranged between the first groove and the second groove.

[0044] The above plurality of trenches are spaced apart from each other.

[0045] The first circuit board includes at least one first trench (TRC1) disposed on an upper surface of the first circuit board; and at least one second trench (TRC2) disposed on a lower surface of the first circuit board.

[0046] The at least one first trench and the at least one second trench overlap each other.

[0047] From a planar perspective, the second trench is placed between adjacent first trenches.

[0048] An imaginary line passing through the center of each of the grooves of the plurality of first circuit boards is parallel to the straight portion of the display panel.

[0049] An imaginary line passing through the center of each of the plurality of second circuit boards is parallel to the straight portion of the display panel.

[0050] According to one embodiment of the present invention for achieving the above object, an electronic device includes: a processor; a memory; and a display device connected to the processor and the memory, wherein the display device includes: a display panel including a display area and a non-display area; a first circuit board connected to the non-display area of ​​the display panel and being bendable; a driving circuit disposed on the first circuit board; and a second circuit board connected to the first circuit board; wherein the first circuit board includes a first side overlapping the display panel above the driving circuit and a second side overlapping the second circuit board below the driving circuit, the first side being disposed between the display area and a pad of the display panel, and an extension direction of the first side intersects an extension direction of the second side.

[0051] Specific details of other embodiments are included in the detailed description and drawings.

[0052] According to one embodiment of the display device and electronic device, the attachment area of ​​the driving circuit board in a curved or diagonal shape area can be minimized. Accordingly, a reduction in the size of the display area having a curved or diagonal shape can be prevented.

[0053] Additionally, according to the display device of one embodiment, the driving circuit board can be easily bent.

[0054] Additionally, according to the display device of one embodiment, stress at the bending portion of the driving circuit board can be reduced.

[0055] Additionally, according to the display device of one embodiment, the resistance deviation of the connection lines of the driving circuit board can be reduced.

[0056] Meanwhile, the effects that can be obtained from the present invention are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0057] FIG. 1 is a plan view showing a display device according to one embodiment.

[0058] Figure 2 is a plan view showing the display panel of Figure 1.

[0059] Figure 3 is an enlarged view of area A1 of Figure 1.

[0060] Figure 4 is an enlarged view of area A2 of Figure 1.

[0061] FIG. 5 is a drawing for explaining another embodiment of the first drive circuit board.

[0062] FIG. 6 is a drawing illustrating another embodiment of the first drive circuit board.

[0063] Figure 7 is a drawing for explaining another embodiment of the first drive circuit board.

[0064] Figure 8 is a drawing for explaining another embodiment of the first drive circuit board.

[0065] Figure 9 is a plan view of a first drive circuit board according to another embodiment.

[0066] Fig. 10 is a cross-sectional view taken along line I-I' of Fig. 9.

[0067] Fig. 11 is a plan view of a first drive circuit board according to another embodiment.

[0068] Fig. 12 is a cross-sectional view taken along line II-II' of Fig. 11.

[0069] Fig. 13 is a plan view of a first drive circuit board according to another embodiment.

[0070] Fig. 14 is a cross-sectional view taken along line III-III' of Fig. 13.

[0071] Fig. 15 is a cross-sectional view of another embodiment taken along line III-III' of Fig. 13.

[0072] Fig. 16 is a cross-sectional view of another embodiment along line III-III' of Fig. 13.

[0073] Fig. 17 is a plan view showing a display device according to another embodiment.

[0074] Figure 18 is an enlarged view of area A3 of Figure 17.

[0075] Figure 19 is a block diagram of an electronic device according to one embodiment.

[0076] FIGS. 20, 21, and 22 are schematic diagrams of electronic devices according to various embodiments.

[0077] The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms. These embodiments are provided solely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined solely by the scope of the claims.

[0078] When elements or layers are referred to as being "on" another element or layer, this includes both cases where the other element or layer is directly on top of the other element or layer or intervening therebetween. Like reference numerals refer to like elements throughout the specification. The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments are illustrative and therefore the present invention is not limited to the matters illustrated.

[0079] Although terms like "first" and "second" are used to describe various components, these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, it should be understood that a "first" component referred to below may also be a "second" component within the technical scope of the present invention.

[0080] The features of each of the various embodiments of the present invention can be partially or wholly combined or combined with each other, and various technical connections and operations are possible, and each embodiment can be implemented independently of each other or implemented together in a related relationship.

[0081] Specific embodiments are described below with reference to the attached drawings.

[0082] Fig. 1 is a plan view showing a display device (100) according to one embodiment. Fig. 2 is a plan view showing a display panel (110) of Fig. 1. For example, Fig. 2 is a drawing showing only the remaining components excluding the data driving unit among the components of Fig. 1.

[0083] Referring to FIGS. 1 and 2, the display device (100) is a device that displays a moving image or a still image, and can be used as a display screen for various products such as portable electronic devices such as mobile phones, smart phones, tablet personal computers (PCs), smart watches, watch phones, mobile communication terminals, electronic notebooks, electronic books, portable multimedia players (PMPs), navigation devices, and Ultra Mobile PCs (UMPCs), as well as televisions, laptops, monitors, billboards, and Internet of Things (IOT). These are presented only as examples, and the display device (100) can also be employed in other electronic devices.

[0084] The display device (100) may be a light-emitting display device such as an organic light-emitting display device including an organic light-emitting diode, a quantum dot light-emitting display device including a quantum dot light-emitting layer, an inorganic light-emitting display device including an inorganic semiconductor, or an ultra-small light-emitting display device including an ultra-small light-emitting diode such as a micro or nano light emitting diode (micro LED or nano LED), but is not limited thereto. For example, the display device (100) may be a type of display device other than a light-emitting display device. Hereinafter, embodiments in which the display device (100) is a light-emitting display device (for example, an organic light-emitting display device) are disclosed.

[0085] A display device (100) may include a display panel (110), and a gate driver (GD), an emission driver (ED), and a data driver (DD) that supply driving signals to pixels (PX) of the display panel (110). Here, the pixels (PX) may be arranged in a display area of ​​the display panel (110), the gate driver (GD) and the emission driver (ED) may be arranged in a non-display area (NDA) of the display panel (110), and the data driver (DD) may be connected to the non-display area (NDA) of the display panel (110) via first circuit boards (hereinafter, driving circuit boards (CB1, CB2, CB3)).

[0086] The display device (100) may further include a power supply unit and a timing control unit. The power supply unit may supply power voltages to pixels (PX), a gate driver (GD), an emission driver (ED), and a data driver (DD). The timing control unit may control operations of a first gate driver (GD1) and a second gate driver (GD2) of the gate driver (GD), a first emission driver (ED1) and a second emission driver (ED2) of the emission driver (ED), and a data driver (DD).

[0087] The display panel (110) may be formed in a rectangular shape on a plane. In FIGS. 1 and 2, a display panel (110) having a horizontal length (e.g., length in the first direction (DR1)) longer than a vertical length (e.g., length in the second direction (DR2)) is illustrated, but the shape of the display panel (110) is not limited thereto. For example, the display panel (110) may have a shape in which the vertical length is longer than the horizontal length, or may have a square shape, etc. The display panel (110) may include an edge with a rounded corner. For example, as in the example illustrated in FIG. 1, one corner of the display panel (110) may have a curved portion (CV1; hereinafter, referred to as the first curved portion (CV1)). Meanwhile, a straight portion (ST1; hereinafter, referred to as the first straight portion (ST1)) of the display panel (110) may be arranged on one side of the first curved portion (CV1). The first straight section (ST1) may extend, for example, along the first direction (DR1).

[0088] The display panel (110) may be provided as a rigid panel that is substantially not deformed, or may be provided as a flexible panel that can be deformed in a form such as by folding, bending, or rolling at least in one portion. The display panel (110) may be provided to the display device (100) in an unbent state, or may be provided to the display device (100) in a bent state in some sections.

[0089] The display panel (110) may include a display area (DA) and a non-display area (NDA).

[0090] A plurality of pixels (PX) may be arranged in a display area (DA). The plurality of pixels (PX) may display an image. The plurality of pixels (PX) may be connected to gate lines (GL), emission control lines (EML), data lines (DL), and power lines. The gate line (GL) and the emission control line (EML) may each extend along a first direction (DR1), and the data line (DL) may extend along a second direction (DR2). Here, the first direction (DR1) is a horizontal direction, the second direction (DR2) is a vertical direction, and the first direction (DR1) and the second direction (DR2) may vertically intersect.

[0091] A non-display area (NDA) may be positioned around a display area (DA). In one embodiment, the non-display area (NDA) may surround the display area (DA).

[0092] The display area (DA) may have various shapes depending on the embodiments. For example, the display area (DA) may have a rectangular shape, a non-rectangular polygonal shape, a circular shape, an oval shape, an irregular shape, or other shapes. In one embodiment, the display area (DA) may have a shape that matches the shape of the display panel (110). For example, as shown in the example of FIG. 1, one corner of the display area (DA) may have a curved portion (CV2; hereinafter, referred to as the second curved portion (CV2)). As a specific example, the second curved portion (CV2) of the display area may be arranged to correspond to the first curved portion (CV1) of the display panel (110). Here, the curvature of the second curved portion (CV2) and the curvature of the first curved portion (CV1) may be the same. Meanwhile, a straight portion (hereinafter, referred to as the second straight portion (ST2)) of the display area (DA) may be arranged on one side of the second curved portion (CV2). The second straight portion (ST2) may extend, for example, along the first direction (DR1). The first straight portion (ST1) and the second straight portion (ST2) may be arranged parallel to each other.

[0093] The non-display area (NDA) may include a pad area (PDA) in which a plurality of pads (PD) are arranged, as illustrated in FIG. 2. For example, the pad area (PDA) may be arranged in a non-display area (NDA; for example, a lower non-display area) located below the display area (DA). The plurality of pads (PD) may be arranged along a first direction (DR1).

[0094] A gate driver (GE) and an emission driver (ED) may be arranged in a non-display area (NDA). For example, the gate driver (GD) may include a first gate driver (GD1) and a second gate driver (GD2), and the emission driver (ED) may include a first emission driver (ED1) and a second emission driver (ED2). Here, the first gate driver (GD1) and the first emission driver (ED1) may be arranged in a non-display area (NDA; for example, a left non-display area) located on the left side of the display area (DA), and the second gate driver (GD2) and the second emission driver (ED2) may be arranged in a non-display area (NDA; for example, a right non-display area) located on the right side of the display area (DA).

[0095] The gate driver (GD) can drive the gate lines (GL). For example, the first gate driver (GD1) and the second gate driver (GD2) can supply gate signals to the gate lines (GL), respectively. The gate lines (GL) can be connected to the first gate driver (GD1) and the second gate driver (GD2). For example, one side of each gate line (GL) can be electrically connected to the first gate driver (GD1), and the other side of each gate line (GL) can be electrically connected to the second gate driver (GD2).

[0096] The light emitting driver (ED) can drive the light emitting control lines (EML). For example, the first light emitting driver (ED1) and the second light emitting driver (ED2) can supply light emitting control signals to the light emitting control lines (EML), respectively. The light emitting control lines (EML) can be connected to the first light emitting driver (ED1) and the second light emitting driver (ED2). As a specific example, one side of each light emitting control line (EML) can be electrically connected to the first light emitting driver (ED1), and the other side of each light emitting control line (EML) can be electrically connected to the second light emitting driver (ED2).

[0097] The drive circuit boards (CB1-CB3) may include a first drive circuit board (CB1), a second drive circuit board (CB2), and a third drive circuit board (CB3). In the present embodiment, three drive circuit boards (CB1-CB3) are disclosed, but the number of drive circuit boards is not limited thereto.

[0098] The driving circuit boards (CB1-CB3) can be connected to the display panel (110) and the second circuit boards (hereinafter, the control circuit boards (CCB1, CCB2)). For example, as illustrated in FIGS. 1 and 2, the first driving circuit board (CB1) can be connected to the first pads (PD1) of the display panel (110) and the first control circuit board (CCB1), the second driving circuit board (CB2) can be connected to the second pads (PD2) of the display panel (110) and the second control circuit board (CCB2), and the third driving circuit board (CB3) can be connected to the third pads (PD3) of the display panel (110) and the second control circuit board (CCB2). Each drive circuit board (CB1-CB3) may be, but is not limited to, a flexible film such as a bendable flexible printed drive circuit board (FPCB), a printed drive circuit board (PCB), or a chip on film (COF).

[0099] The spacing between adjacent drive circuit boards (e.g., spacing in the first direction (DR1)) may be the same. For example, the spacing between the first drive circuit board (CB1) and the second drive circuit board (CB2) and the spacing between the second drive circuit board (CB2) and the third drive circuit board (CB3) may be the same.

[0100] Each drive circuit board (CB1-CB3) may include multiple terminals (or bumps). For example, the first driving circuit board (CB1) may include a plurality of first panel terminals (P1) connected to a plurality of first pads (PD1) of the display panel (110) and a plurality of first board terminals (B1) connected to a first control circuit board (CCB1; for example, first terminals of the first control circuit board (CCB1)), the second driving circuit board (CB2) may include a plurality of second panel terminals (P2) connected to a plurality of second pads (PD2) of the display panel (110) and a plurality of second board terminals (B2) connected to a second control circuit board (CCB2; for example, second terminals of the second control circuit board (CCB2)), and the third driving circuit board (CB3) may include a plurality of third panel terminals (P3) connected to a plurality of third pads (PD3) of the display panel (110) and a plurality of third board terminals (P3) connected to a second control circuit board (CCB2; for example, third terminals of the second control circuit board (CCB2)). It may include terminals (B3).

[0101] The first driving circuit board (CB1) may be connected to a non-display area (NDA) between the first curved portion (CV1) and the second curved portion (CV2). The second driving circuit board (CB2) and the third driving circuit board (CB3) may be connected to a non-display area (NDA) between the first straight portion (ST1) and the second straight portion (ST2), respectively.

[0102] The grooves (50, 60, 70) of the driving circuit boards (CB1-CB3) may be arranged along one direction. For example, the grooves (50) of the first driving circuit board (CB1), the grooves (60) of the second driving circuit board (CB2), and the grooves (70) of the third driving circuit board (CB3) may be arranged along the first direction (DR1). As a specific example, a virtual line (L567) passing through each center of the grooves (50) of the first driving circuit board (CB1), each center of the grooves (60) of the second driving circuit board (CB2), and each center of the grooves (70) of the third driving circuit board (CB3) may be parallel to the first straight portion (ST1) of the display panel (110). Accordingly, even if the arrangement directions of the pads (e.g., PD1 and PD2, or PD1 and PD3) of the driving circuit boards (CB1-CB3) are different or the edge of the display panel (110) has a free shape including a curved portion (CV1) and a straight portion (ST1), the driving circuit boards (CB1-CB3) can be easily bent to the back surface of the display panel (110) at the same time during the bending operation of the circuit boards. Meanwhile, the grooves (50) of the first driving circuit board (CB1) may include the first groove (51) and the second groove (52) of FIG. 3 to be described later, and the grooves (60) of the second driving circuit board (CB2) may include the first groove (61) and the second groove (62) of FIG. 4 to be described later. Similarly, the grooves (70) of the third driving circuit board (CB3) may include the first groove and the second groove.

[0103] At least one of the first control circuit board (CCB1) and the second control circuit board (CCB2) may have a timing control unit and a power supply circuit arranged thereon. The first control circuit board (CCB1) and the second control circuit board (CCB2) may be electrically connected to each other via a connector. The first control circuit board (CCB1) and the second control circuit board (CCB2) may be a flexible film such as a flexible printed circuit board (FPCB), a printed circuit board (PCB), or a chip on film (COF), but is not limited thereto. For example, the first control circuit board (CCB1) and the second control circuit board (CCB2) may be a printed circuit board made of a rigid material. In the present embodiment, two control circuit boards (CCB1, CCB2) are disclosed, but the number of control circuit boards is not limited thereto.

[0104] The first control circuit board (CCB1) and the second control circuit board (CCB2) may be arranged along one direction. For example, the first control circuit board (CCB1) and the second control circuit board (CCB2) may be arranged along the first direction (DR1). For example, an imaginary line (L12) passing through the center of the first control circuit board (CCB1) and the center of the second control circuit board (CCB2) may be parallel to the first straight portion (ST1) of the display panel (110). Accordingly, even if the arrangement directions of the pads (e.g., PD1 and PD2, or PD1 and PD3) of the drive circuit boards (CB1-CB3) are different or the edge of the display panel (110) has a free shape including a curved portion (CV1) and a straight portion (ST1), the control circuit boards (CCB1, CCB2) can be easily bent to the back surface of the display panel (110) at the same time during the bending operation of the circuit board.

[0105] The data driving unit (DD) may include a plurality of driving circuits (DDC1, DDC2, DDC3; hereinafter, referred to as data driving circuits) arranged along a first direction (DR1). For example, the data driving unit (DD) may include a first data driving circuit (DDC1) mounted on a first driving circuit board (CB1), a second data driving circuit (DDC2) mounted on a second driving circuit board (CB2), and a third data driving circuit (DDC3) mounted on a third driving circuit board (CB3). Each of the data driving circuits (DDC1-DDC3) may include, for example, an integrated circuit.

[0106] Each data driving circuit (DDC1-DDC3) may be electrically connected to each pad (PD1-PD3) of the display panel (110) through each driving circuit board (CB1-CB3). For example, the first data driving circuit (DDC1) may be electrically connected to the first pads (PD1) of the display panel (110) through the first panel terminals (P1) of the first driving circuit board (CB1), the second data driving circuit (DDC2) may be electrically connected to the second pads (PD2) of the display panel (110) through the second panel terminals (P2) of the second driving circuit board (CB2), and the third data driving circuit (DDC3) may be electrically connected to the third pads (PD3) of the display panel (110) through the third panel terminals (P3) of the third driving circuit board (CB3).

[0107] A plurality of data lines (DL) may be connected to a data driving unit (DD). For example, the plurality of data lines (DL) may be divided and connected to a plurality of data driving circuits (DDC1-DDC3). As a specific example, the plurality of data lines (DL) may include a plurality of first data lines connected to a first data driving circuit (DDC1), a plurality of second data lines connected to a second data driving circuit (DDC2), and a plurality of third data lines connected to a third data driving circuit (DDC3).

[0108] The first panel terminals (P1) of the first driving circuit board (CB1) may include a plurality of first control terminals, a plurality of first power terminals, and a plurality of first data terminals. The first control terminals may be connected to a timing control unit disposed on a second control circuit board (CCB2). For example, the second control circuit board (CCB2) and the first control circuit board (CCB1) may be electrically connected to each other, and the first control terminals may be connected to the timing control unit of the second control circuit board (CCB2) through the first control circuit board (CCB1). The first power terminals may be connected to a power supply unit disposed on the second control circuit board (CCB2). For example, the second control circuit board (CCB2) and the first control circuit board (CCB1) may be electrically connected to each other, and the first power terminals may be connected to the power supply unit of the second control circuit board (CCB2) through the first control circuit board (CCB1). The first data terminals may be connected to the first data driving circuit (DDC1). Meanwhile, the first board terminals (B1) of the first driving circuit board (CB1) may include first control terminals, first power terminals, and first data terminals corresponding to the first panel terminals (P1). The first control terminals of the first board terminals (B1) may be connected to the first control terminals of the first panel terminals (P1), the first power terminals of the first board terminals (B1) may be connected to the first power terminals of the first panel terminals (P1), and the first data terminals of the first board terminals (B1) may be connected to the first data driving circuit (DDC1).

[0109] The second panel terminals (P2) of the second driving circuit board (CB2) may include a plurality of second power terminals and a plurality of second data terminals. The second power terminals may be connected to a power supply arranged on the second control circuit board (CCB2). The second data terminals (D2) may be connected to the second data driving circuit (DDC2). Meanwhile, the second board terminals (B2) of the second driving circuit board (CB2) may include second power terminals and second data terminals corresponding to the second panel terminals (P2). The second power terminals of the second board terminals (B2) may be connected to the second power terminals of the second panel terminals (P2), and the second data terminals of the second board terminals (B2) may be connected to the second data driving circuit (DDC2).

[0110] The third panel terminals (P3) of the third driving circuit board (CB3) may include a plurality of second control terminals, a plurality of third power terminals, and a plurality of third data terminals. The second control terminals may be connected to a timing control unit disposed on the second control circuit board (CCB2). The third power terminals may be connected to a power supply unit disposed on the second control circuit board (CCB2). The third data terminals may be connected to a third data driving circuit (DDC5). Meanwhile, the third board terminals (B3) of the third driving circuit board (CB3) may include second control terminals, third power terminals, and third data terminals corresponding to the third panel terminals (P3). The second control terminals of the third board terminals (B3) can be connected to the second control terminals of the third panel terminals (P3), the third power terminals of the third board terminals (B3) can be connected to the third power terminals of the third panel terminals (P3), and the third data terminals of the third board terminals (B3) can be connected to the third data driving circuit (DDC3).

[0111] The first panel terminals (P1) of the first driving circuit board (CB1) and the first pads (PD1) of the display panel (110) can be electrically connected directly or through a connecting member such as a conductive ball, the second panel terminals (P2) of the second driving circuit board (CB2) and the second pads (PD2) of the display panel (110) can be electrically connected directly or through a connecting member such as a conductive ball, and the third panel terminals (P3) of the third driving circuit board (CB3) and the third pads (PD3) of the display panel (110) can be electrically connected directly or through a connecting member such as a conductive ball.

[0112] The first board terminals (B1) of the first driving circuit board (CB1) and the first terminals of the first control circuit board (CCB1) can be electrically connected directly or through a connecting member such as a conductive ball, the second board terminals (B2) of the second driving circuit board (CB2) and the second terminals of the second control circuit board (CCB2) can be electrically connected directly or through a connecting member such as a conductive ball, and the third board terminals (B3) of the third driving circuit board (CB3) and the third terminals of the second control circuit board (CCB2) can be electrically connected directly or through a connecting member such as a conductive ball.

[0113] The first pads (PD1) of the display panel (110) may include a plurality of first control pads, a plurality of first power pads, and a plurality of first data pads. The first control pads may be connected to first control terminals of the first panel terminals (P1), respectively. In addition, the first control pads may be connected to the first gate driver (GD1) and the first light emitting driver (ED1). The first power pads may be connected to the first power terminals of the first panel terminals (P1), respectively. In addition, the first power pads may be connected to the first gate driver (GD1), the first light emitting driver (ED1), and the pixels (PX). The first data pads may be connected to the first data terminals of the first panel terminals (P1), respectively. In addition, the first data pads (D11) may be connected to the first data lines, respectively.

[0114] The second pads (PD2) of the display panel (110) may include a plurality of second power pads and a plurality of second data pads. The second power pads may be connected to second power terminals of the second panel terminals (P2), respectively. In addition, the second power pads may be connected to pixels (PX). The second data pads may be connected to second data terminals of the second panel terminals (P2), respectively. In addition, the second data pads may be connected to second data lines, respectively.

[0115] The third pads (PD3) of the display panel (110) may include a plurality of second control pads, a plurality of third power pads, and a plurality of third data pads. The second control pads may be respectively connected to second control terminals of the third panel terminals (P3). In addition, the second control pads may be respectively connected to the second gate driver (GD2) and the second light emitting driver (ED2). The third power pads may be respectively connected to third power terminals of the third panel terminals (P3). In addition, the third power pads may be respectively connected to pixels (PX). The third data pads may be respectively connected to third data terminals of the third panel terminals (P3). In addition, the third data pads may be respectively connected to third data lines.

[0116] The first control pads and the first gate driver (GD1) described above can be electrically connected to each other through the corresponding fan-out lines (FL), and the other first control pads and the first light-emitting driver (ED1) can be electrically connected to each other through the corresponding fan-out lines (FL).

[0117] The second control pads and the second gate driver (GD2) described above can be electrically connected to each other through the corresponding fan-out lines (FL), and other second control pads and the second light-emitting driver (ED2) can be electrically connected to each other through the corresponding fan-out lines (FL).

[0118] The first to third data pads described above can be electrically connected to the first to third data lines via the corresponding fan-out lines (FL).

[0119] Through the first control terminals of the first driving circuit board (CB1) and the first control pads of the display panel (110), a gate timing control signal, an emission timing control signal, a gate clock signal, an emission clock signal, a gate start signal, an emission start signal, a high-potential voltage, and a low-potential voltage from the timing control unit can be supplied to the first gate driver (GD1) and the first emission driver (ED1). For example, the gate timing control signal, the gate clock signal, the gate start signal, the high-potential voltage, and the low-potential voltage can be supplied to the first gate driver (GD1), and the emission timing control signal, the emission clock signal, the emission start signal, the high-potential voltage, and the low-potential voltage can be supplied to the first emission driver (ED1). Through the first power terminals of the first driving circuit board (CB1) and the first power pads of the display panel (110), power signals from the power supply unit can be supplied to the first gate driver (GD1), the first emission driver (ED1), and the pixels (PX). The power signals may include, for example, a driving voltage, a common voltage, an initialization voltage, and a bias voltage. Data signals from the first data driving circuit (DDC1) may be supplied to the first data lines, respectively, through the first data terminals of the first driving circuit board (CB1) and the first data pads of the display panel (110).

[0120] Power signals from a power supply unit can be supplied to pixels (PX) through second power terminals of a second driving circuit board (CB2) and second power pads of a display panel (110). Data signals from a second data driving circuit (DDC2) can be supplied to second data lines, respectively, through second data terminals of a second driving circuit board (CB2) and second data pads of a display panel (110).

[0121] Through the second control terminals of the third driving circuit board (CB3) and the second control pads of the display panel (110), a gate timing control signal, an emission timing control signal, a gate clock signal, an emission clock signal, a high-potential voltage, and a low-potential voltage from the timing control unit can be supplied to the second gate driver (GD2) and the second emission driver (ED2). For example, the gate timing control signal, the gate clock signal, the high-potential voltage, and the low-potential voltage can be supplied to the second gate driver (GD2), and the emission timing control signal, the emission clock signal, the high-potential voltage, and the low-potential voltage can be supplied to the second emission driver (ED2). Through the third power terminals of the third driving circuit board (CB3) and the third power pads of the display panel (110), power signals from the power supply unit can be supplied to the second gate driver (GD2), the second emission driver (ED2), and the pixels (PX). Data signals from the third data driving circuit (DDC3) can be supplied to the third data lines, respectively, through the third data terminals of the third driving circuit board (CB3) and the third data pads of the display panel (110). The aforementioned high-potential voltage may be greater than the driving voltage, and the low-potential voltage may be less than the common voltage.

[0122] Figure 3 is an enlarged view of area A1 of Figure 1.

[0123] As illustrated in FIG. 3, the first driving circuit board (CB1) may have a polygonal shape including a first side (S1), a second side (S2), a third side (S3), a fourth side (S4), a fifth side (S5), and a sixth side (S6). However, the shape of the first driving circuit board (CB1) is not limited thereto, and may have various shapes different from the shape illustrated in FIG. 3.

[0124] A first side (S1) of a first driving circuit board (CB1) may extend along a fourth direction (DR4). Here, the fourth direction (DR4) is a direction extending between an angle (e.g., 90 degrees) formed by the first direction (DR1) and the second direction (DR2), and the angle (e.g., 90 degrees) between the first direction (DR1) and the fourth direction (DR4) may be smaller than the angle between the first direction (DR1) and the second direction (DR2). The first side (S1) may be disposed on a display panel (110). At this time, the first side (S1) may overlap the display panel (110). For example, the first side (S1) may overlap a non-display area (NDA) of the display panel (110) in a third direction (DR3). As a specific example, the entire first side (S1) may overlap with the non-display area (NDA) of the display panel (110). According to one embodiment, the first side (S1) may be positioned between the display area (DA) of the display panel (110) and pads (e.g., first pads (PD1)) of the display panel (110).

[0125] The second side (S2) of the first driving circuit board (CB1) may extend from one edge of the first side (S1) along a fifth direction (DR5). Here, the fifth direction (DR5) is a direction extending between an angle (e.g., 90 degrees) formed by a reverse direction of the first direction (DR1) (hereinafter, referred to as the first reverse direction) and a second direction (DR2), and the angle between the first reverse direction and the fifth direction (DR5) may be smaller than the angle between the first reverse direction and the second direction (DR2). The second side (S2) may be disposed on the display panel (110). At this time, the second side (S2) may overlap the display panel (110). For example, the second side (S2) may overlap a non-display area (NDA) of the display panel (110) in a third direction (DR3). As a specific example, the entire second side (S2) may overlap with the non-display area (NDA) of the display panel (110).

[0126] A third side (S3) of the first driving circuit board (CB1) may extend from the other edge of the first side (S1) in a fifth direction (DR5). The third side (S3) may be arranged to face the second side (S2). For example, the third side (S3) and the second side (S2) may face each other in a fourth direction (DR4). The length of the third side (S3) and the length of the second side (S2) may be the same. The length of the third side (S3) may be smaller than the length of the first side (S1). The third side (S3) and the second side (S2) may be parallel. The third side (S3) may be arranged on a display panel (110). In this case, the third side (S3) may overlap the display panel (110). For example, the third side (S3) may overlap the non-display area (NDA) of the display panel (110) in the third direction (DR3). As a specific example, the entire third side (S3) may overlap the non-display area (NDA) of the display panel (110).

[0127] The fourth side (S4) of the first drive circuit board (CB1) may extend from the other edge of the second side (S2). For example, one edge of the second side (S2) is connected to one edge of the first side (S1), so that the fourth side (S4) may extend from the other edge of the second side (S2) along the second direction (DR2). The length of the fourth side (S4) may be greater than the length of the first side (S1). One edge of the fourth side (S4) may be disposed on the display panel (110). At this time, one edge of the fourth side (S4) may overlap with the display panel (110). The other edge of the fourth side (S4) may be disposed on the first control circuit board (CCB1). At this time, the other edge of the fourth side (S4) may overlap with the first control circuit board (CCB1). In other words, a part of the fourth side (S4) may overlap the display panel (110) in the third direction (DR3), and another part of the fourth side (S4) may overlap the first control circuit board (CCB1) in the third direction (DR3). A first groove (51) may be arranged in a part of the fourth side (S4). For example, the first groove (51) may be arranged in a part of the fourth side (S4) that does not overlap the aforementioned display panel (110) and the first control circuit board (CCB1). The first groove (51) of the fourth side (S4) may have a shape that is sunken toward the fifth side (S5). For example, the first groove (51) may have any one of a convex semicircle, a parabola, and a convex lens shape toward the fifth side (S5). The first driving circuit board (CB1) can be easily bent (or folded) by the first groove (51) and the second groove (52). For example, the first driving circuit board (CB1) attached to the display panel (110) and the first control circuit board (CCB1) can be bent toward the rear of the display panel (110), and at this time, the first driving circuit board (CB1) can be easily bent by the first groove (51) and the second groove (52).

[0128] The fifth side (S5) of the first driving circuit board (CB1) may extend from the other side edge of the third side (S3). For example, one side edge of the third side (S3) is connected to the other side edge of the first side (S1), so that the fifth side (S5) may extend from the other side edge of the third side (S3) along the second direction (DR2). The fifth side (S5) may be arranged to face the fourth side (S4). For example, the fifth side (S5) and the fourth side (S4) may face each other in the first direction (DR1). The fifth side (S5) and the fourth side (S4) may be parallel to each other. The length of the fifth side (S5) may be greater than the length of the first side (S1) and less than the length of the fourth side (S4). One side edge of the fifth side (S5) may be arranged on the display panel (110). At this time, one edge of the fifth side (S5) may overlap with the display panel (110). The other edge of the fifth side (S5) may be disposed on the first control circuit board (CCB1). At this time, the other edge of the fifth side (S5) may overlap with the first control circuit board (CCB1). In other words, a part of the fifth side (S5) may overlap with the display panel (110) in the third direction (DR3), and another part of the fifth side (S5) may overlap with the first control circuit board (CCB1) in the third direction (DR3). A second groove (52) may be disposed on a part of the fifth side (S5). For example, the second groove (52) may be disposed on a part of the fifth side (S5) that does not overlap with the aforementioned display panel (110) and the first control circuit board (CCB1). The second groove (52) of the fifth side (S5) may have a shape that is sunken toward the fourth side (S4). For example, the second groove (52) may have a shape of any one of a convex semicircle, a parabola, and a convex lens toward the fourth side (S4). The second groove (52) and the first groove (51) may be arranged to face each other. For example, the second groove (52) and the first groove (51) may face each other in the first direction (DR1).The second groove (52) and the first groove (51) may have shapes that are symmetrical to each other. For example, the second groove (52) and the first groove (51) may have shapes that are symmetrical to each other with respect to an imaginary extension line extending along the second direction (DR2) from the center between them.

[0129] The sixth side (S6) of the first drive circuit board (CB1) may be disposed between the other edge of the fourth side (S4) and the other edge of the fifth side (S5). For example, one edge of the fourth side (S4) may be connected to the other edge of the second side (S2), one edge of the fifth side (S5) may be connected to the other edge of the third side (S3), one edge of the sixth side (S6) may be connected to the other edge of the fourth side (S4), and the other edge of the sixth side (S6) may be connected to the other edge of the fifth side (S5). In other words, the sixth side (S6) may extend from the other edge of the fourth side (S4) to the other edge of the fifth side (S5) along the first direction (DR1). The length of the sixth side (S6) may be less than the length of the first side (S1).

[0130] As illustrated in FIG. 3, the first drive circuit board (CB1) may include a mounting portion (MM1), a panel connection portion (PP1), and a board connection portion (BB1).

[0131] The panel connection part (PP1) may be disposed on the display panel (110). For example, the panel connection part (PP1) may be disposed in a non-display area (NDA; for example, a curved non-display area (NDA) between the first curved portion (CV1) and the second curved portion (CV2)) of the display panel (110) so as to overlap with the first pads (PD1) of the display panel (110). The panel connection part (PP1) may include a plurality of first panel terminals (P1). The plurality of first panel terminals (P1) of the panel connection part (PP1) may overlap with the plurality of first pads (PD1) of the display panel (110), respectively. The first panel terminals (P1) may be disposed along the fourth direction (DR4). The panel connection part (PP1) may be a portion connected to the display panel (110). For example, the first panel terminals (P1) of the panel connection portion (PP1) can be respectively connected to the first pads (PD1) of the display panel (110) by pressure and heat, and the aforementioned pressure and heat can be applied to the panel connection portion (PP1). The panel connection portion (PP1) can be defined by the first side (S1), the second side (S2), the third side (S3) and the first virtual side (VS1) of the first driving circuit board (CB1) described above. For example, the panel connection portion (PP1) can mean an area surrounded by the first side (S1), the second side (S2), the third side (S3) and the first virtual side (VS1) of the first driving circuit board (CB1). Here, the first virtual edge (VS1) may mean a virtual edge connecting the other side edge of the second side (S2) (e.g., the intersection between the first side (S1) and the second side (S2)) and the other side edge of the third side (S3) (e.g., the intersection between the first side (S1) and the third side (S3)). The first virtual edge (VS1) may be parallel to the first side (S1).

[0132] The board connection portion (BB1) may be arranged on the first control circuit board (CCB1). For example, the board connection portion (BB1) may be arranged on a first terminal area of ​​the first control circuit board (CCB1) so as to overlap with first terminals of the first control circuit board (CCB1). The board connection portion (BB1) may include a plurality of first board terminals (B1). The plurality of first board terminals (B1) of the board connection portion (BB1) may overlap with the plurality of first terminals of the first control circuit board (CCB1), respectively. The first board terminals (B1) may be arranged along the first direction (DR1). The board connection portion (BB1) may be a portion connected to the first control circuit board (CCB1). For example, the first board terminals (B1) of the board connection portion (BB1) can be respectively connected to the first terminals of the first control circuit board (CCB1) by pressure and heat, so that the aforementioned pressure and heat can be applied to the board connection portion (BB1). The board connection portion (BB1) can be defined by the fourth side (S4), the fifth side (S5), the sixth side (S6) and the second virtual side (VS2) of the first drive circuit board (CB1) described above. For example, the board connection portion (BB1) can mean an area surrounded by the fourth side (S4), the fifth side (S5), the sixth side (S6) and the second virtual side (VS2) of the first drive circuit board (CB1). Here, the second virtual edge (VS2) may refer to a virtual edge connecting the fourth edge (S4) and the fifth edge (S5) between the overlapping edge (123) of the first control circuit board (CCB1) and the first board terminal (B1). The second virtual edge (VS2) may be parallel to the sixth edge (S6). Here, the overlapping edge (123) of the first control circuit board (CCB1) may refer to an edge of the first control circuit board (CCB1) that overlaps the first drive circuit board (CB1; for example, the mounting portion (MM1) of the first drive circuit board (CB1)).

[0133] The mounting portion (MM1) may be disposed between the panel connection portion (PP1) and the board connection portion (BB1). The mounting portion (MM1) may include a first data driving circuit (DDC1). For example, the first data driving circuit (DDC1) may be disposed (or mounted) on the mounting portion (MM1). The first groove (51) and the second groove (52) described above may be disposed between the first data driving circuit (DDC1) and the panel connection portion (PP1). The mounting portion (MM1) may be defined by the fourth side (S4), the fifth side (S5), the first virtual side (VS1), and the second virtual side (VS2) of the first driving circuit board (CB1). For example, the mounting portion (MM1) may mean an area surrounded by the fourth side (S4), the fifth side (S5), the first virtual side (VS1), and the second virtual side (VS2) of the first driving circuit board (CB1).

[0134] For example, the longest side (e.g., the first side (S1)) among the sides overlapping the display panel (110) and the longest side (e.g., the sixth side (S6)) among the sides overlapping the first control circuit board (CCB1) extend non-parallel. In other words, the first side (S1) is a side overlapping the display panel (110) on the upper side of the first data driving circuit (DDC1), and the sixth side (S6) is a side overlapping the first control circuit board (CCB1) on the lower side of the first data driving circuit (DDC1), and the first side (S1) and the sixth side (S6) may intersect. Here, the first side (S1) may contact the display panel (110), and the sixth side (S6) may contact the first control circuit board (CCB1). The angle between the first side (S1) and the sixth side (S6) may be greater than 0 degrees. For example, the angle (θ) between the first virtual side (VS1) parallel to the first side (S1) and the virtual line (124) parallel to the sixth side (S6) may be greater than 0 degrees and less than 90 degrees. As a specific example, the angle (e.g., θ) between the extension direction of the first side (S1) and the extension direction of the sixth side (S6) may be 3 degrees.

[0135] According to one embodiment, a first side (S1) of a first drive circuit board (CB1) may be parallel to a tangent line (LL) of a first curved portion (CV1). In addition, a virtual first line (L1) passing through the center of a panel connection portion (PP1) and perpendicularly intersecting a second side (S2) may be parallel to the tangent line (LL).

[0136] According to one embodiment, a virtual second line (L2) passing through the center of the panel connection portion (PP1) so as to perpendicularly intersect the first side (S1) may perpendicularly intersect the tangent line (LL). At this time, the second line (L2) may pass through the center of any one of the first panel terminals (P1) connected to the first data lines. For example, when a first data line located at the center among a plurality of first data lines connected to the first driving circuit board (CB1) is defined as a center data line, and a first panel terminal (P1) connected to the center data line is defined as a center panel terminal, the above-described second line (L2) may pass through the center of the center panel terminal.

[0137] According to one embodiment, the first panel terminal (P1) may extend along a direction parallel to the second side (S2). For example, each of the first panel terminals (P1) may extend along the fifth direction (DR5).

[0138] According to one embodiment, the first board terminals (B1) may be arranged along the first direction (DR1). The first board terminals (B1) may extend along a direction parallel to the fourth side (S4). For example, the first board terminals (B1) may extend along the second direction (DR2).

[0139] According to one embodiment, a virtual third line (L3) passing through the center of the board connection portion (BB1) and perpendicularly intersecting the fourth side (S4) may not be parallel to the first line (L1; or tangent line (LL)) described above. For example, the third line (L3) and the first line (L1; or tangent line (LL)) may intersect. The angle between the third line (L3) and the first line (L1) may be equal to the angle (e.g., θ) between the first side (S1) and the sixth side (S6) described above.

[0140] According to one embodiment, a virtual fourth line (L4) passing through the center of the first groove (51) and the center of the second groove (52) may be parallel to the sixth side (S6) of the first driving circuit board (CB1).

[0141] According to one embodiment, the aforementioned virtual fourth line (L4) may be positioned at an equal distance from one edge and the other edge of the first data driving circuit (DDC1). For example, the distance (d1) between the fourth line (L4) and one edge of the first data driving circuit (DDC1) may be equal to the distance (d2) between the fourth line (L4) and the other edge of the first data driving circuit (DDC1). In other words, the virtual fifth line (L5) that perpendicularly intersects the fourth side (S4) and passes through the center of the first data driving circuit (DDC1) may be parallel to the fourth line (L4). Here, the fifth line (L5) may be in the extension direction of the first data driving circuit (DDC1). The extension direction of the first data driving circuit (DDC1) is parallel to the fourth line (L4; or sixth side (S6)) described above, and can intersect the first line (L1; or tangent line (LL)).

[0142] According to one embodiment, as illustrated in FIG. 2, the first pads (PD1) of the display panel (110) may be arranged along the fourth direction (DR4).

[0143] Each of the first pads (PD1) may extend in a direction parallel to the second side (S2) of the first driving circuit board (CB1). For example, each of the first pads (PD1) may extend in the fifth direction (DR5). In other words, the first pads (PD1) may extend in the same direction as the first panel terminals (P1) of the first driving circuit board (CB1) described above.

[0144] According to one embodiment, since the panel connection portion (PP1) of the first driving circuit board (CB1) extends along the extension direction of the tangent line (LL) of the first curved portion (CV1; or the second curved portion (CV2)), the panel connection portion (PP1) can be arranged along the tangent line (LL) in the curved non-display area (NDA) between the first curved portion (CV1) and the second curved portion (CV2). In addition, accordingly, the panel connection portion (PP1) can be arranged in the center of the curved non-display area (NDA) without encroaching on the display area (DA). Accordingly, when the first driving circuit board (CB1) is attached to the display panel (110) in the curved area between the first curved portion (CV1) and the second curved portion (CV2), the attachment area of ​​the first driving circuit board (CB1) and the display panel (110) can be minimized, and thus the size of the display area (DA) in the curved area can be prevented from being reduced.

[0145] Figure 4 is an enlarged view of area A2 of Figure 1.

[0146] As illustrated in FIG. 4, the second driving circuit board (CB2) may have a polygonal shape including a first side (S11), a second side (S22), a third side (S33), and a fourth side (S44). For example, the second driving circuit board (CB2) may have a different shape from the first driving circuit board (CB1). However, the shape of the second driving circuit board (CB2) is not limited thereto, and may have various shapes different from the shape illustrated in FIG. 4 as long as it has a different shape from the first driving circuit board (CB1).

[0147] A first side (S11) of a second driving circuit board (CB2) may extend along a first direction (DR1). The first side (S11) may be disposed on a display panel (110). At this time, the first side (S11) may overlap the display panel (110). For example, the first side (S11) may overlap a non-display area (NDA) of the display panel (110) in a third direction (DR3). As a specific example, the entire first side (S11) may overlap the non-display area (NDA) of the display panel (110).

[0148] A second side (S22) of a second driving circuit board (CB2) may extend from one edge of the first side (S11) along a second direction (DR2). The length of the second side (S22) may be greater than the length of the first side (S11). One edge of the second side (S22) may be disposed on a display panel (110). At this time, one edge of the second side (S22) may overlap with the display panel (110). The other edge of the second side (S22) may be disposed on a second control circuit board (CCB2). At this time, the other edge of the second side (S22) may overlap with the second control circuit board (CCB2). In other words, a part of the second side (S22) may overlap the display panel (110) in the third direction (DR3), and another part of the second side (S22) may overlap the second control circuit board (CCB2) in the third direction (DR3). A first groove (61) may be arranged in a part of the second side (S22). For example, the first groove (61) may be arranged in a part of the second side (S22) that does not overlap the aforementioned display panel (110) and the second control circuit board (CCB2). The first groove (61) of the second side (S22) may have a shape that is sunken toward the third side (S33). For example, the first groove (61) may have any one of a convex semicircle, a parabola, and a convex lens shape toward the third side (S33).

[0149] A third side (S33) of the second driving circuit board (CB2) may extend from the other edge of the first side (S11). The third side (S33) may be arranged to face the second side (S22). For example, the third side (S33) and the second side (S22) may face each other in the first direction (DR1). The third side (S33) and the second side (S22) may be parallel to each other. The length of the third side (S33) may be greater than the length of the first side (S11) and equal to the length of the second side (S22). One edge of the third side (S33) may be arranged on the display panel (110). In this case, one edge of the third side (S33) may overlap the display panel (110). The other edge of the third side (S33) may be disposed on the second control circuit board (CCB2). At this time, the other edge of the third side (S33) may overlap with the second control circuit board (CCB2). In other words, a part of the third side (S33) may overlap with the display panel (110) in the third direction (DR3), and another part of the third side (S33) may overlap with the second control circuit board (CCB2) in the third direction (DR3). A second groove (62) may be disposed on a part of the third side (S33). For example, the second groove (62) may be disposed on a part of the third side (S33) that does not overlap with the aforementioned display panel (110) and the second control circuit board (CCB2). The second groove (62) of the third side (S33) may have a shape that is sunken toward the second side (S22). For example, the second groove (62) may have any one of the shapes of a convex semicircle, a parabola, and a convex lens toward the second side (S22). The second groove (62) and the first groove (61) may be arranged to face each other. For example, the second groove (62) and the first groove (61) may face each other in the first direction (DR1). The second groove (62) and the first groove (61) may have shapes that are symmetrical to each other.For example, the second groove (62) and the first groove (61) may have shapes that are symmetrical with respect to an imaginary extension line extending along the second direction (DR2) from the center between them.

[0150] The fourth side (S44) of the second drive circuit board (CB2) may be disposed between the other side edge of the second side (S22) and the other side edge of the third side (S33). For example, one side edge of the second side (S32) may be connected to one side edge of the first side (S11), one side edge of the third side (S33) may be connected to the other side edge of the first side (S11), and one side edge of the fourth side (S44) may be connected to the other side edge of the second side (S22), and the other side edge of the fourth side (S44) may be connected to the other side edge of the third side (S33). In other words, the fourth side (S44) may extend from the other side edge of the second side (S22) to the other side edge of the third side (S33) along the first direction (DR1). The fourth side (S44) may be arranged to face the first side (S11). For example, the fourth side (S44) and the first side (S11) may face each other in the second direction (DR2). The fourth side (S44) and the first side (S11) may be parallel to each other. The length of the fourth side (S44) may be the same as the length of the first side (S11).

[0151] As illustrated in FIG. 4, the second drive circuit board (CB2) may include a mounting portion (MM2), a panel connection portion (PP2), and a board connection portion (BB2).

[0152] The panel connection part (PP2) may be disposed on the display panel (110). For example, the panel connection part (PP2) may be disposed in a non-display area (NDA; for example, a square non-display area (NDA) between the first straight portion (ST1) and the second straight portion (ST2)) of the display panel (110) so as to overlap with second pads (PD2) of the display panel (110). The panel connection part (PP2) may include a plurality of second panel terminals (P2). The plurality of second panel terminals (P2) of the panel connection part (PP2) may overlap with the plurality of second pads (PD2) of the display panel (110). The second panel terminals (P2) may be disposed along the first direction (DR1). The panel connection part (PP2) may be a portion connected to the display panel (110). For example, the second panel terminals (P2) of the panel connection portion (PP2) can be respectively connected to the second pads (PD2) of the display panel (110) by pressure and heat, and the aforementioned pressure and heat can be applied to the panel connection portion (PP2). The panel connection portion (PP2) can be defined by the first side (S11), the second side (S22), the third side (S33) and the first virtual side (VS11) of the second driving circuit board (CB2) described above. For example, the panel connection portion (PP2) can mean an area surrounded by the first side (S11), the second side (S22), the third side (S33) and the first virtual side (VS11) of the second driving circuit board (CB2). Here, the first virtual edge (VS11) may mean a virtual edge connecting the second edge (S22) and the third edge (S33) between the overlapping edge (234) of the display panel (110) and the second panel terminal (P2). The first virtual edge (VS11) may be parallel to the first edge (S11). Here, the overlapping edge (234) of the display panel (110) may mean an edge of the display panel (110) that overlaps the second driving circuit board (CB2; for example, the mounting portion (MM2) of the second driving circuit board (CB2)).

[0153] The board connection portion (BB2) may be arranged on the second control circuit board (CCB2). For example, the board connection portion (BB2) may be arranged on a second terminal area of ​​the second control circuit board (CCB2) so as to overlap with second terminals of the second control circuit board (CCB2). The board connection portion (BB2) may include a plurality of second board terminals (B2). The plurality of second board terminals (B2) of the board connection portion (BB2) may overlap with the plurality of second terminals of the second control circuit board (CCB2), respectively. The second board terminals (B2) may be arranged along the first direction (DR1). The board connection portion (BB2) may be a portion connected to the second control circuit board (CCB2). For example, the second board terminals (B2) of the board connection portion (BB2) can be respectively connected to the second terminals of the second control circuit board (CCB2) by pressure and heat, so that the aforementioned pressure and heat can be applied to the board connection portion (BB2). The board connection portion (BB2) can be defined by the second side (S22), the third side (S33), the fourth side (S44) and the second virtual side (VS22) of the second drive circuit board (CB2) described above. For example, the board connection portion (BB2) can mean an area surrounded by the second side (S22), the third side (S33), the fourth side (S44) and the second virtual side (VS22) of the second drive circuit board (CB2). Here, the second virtual edge (VS22) may refer to a virtual edge connecting the second edge (S22) and the third edge (S33) between the overlapping edge (345) of the second control circuit board (CCB2) and the second board terminal (B2). The second virtual edge (VS22) may be parallel to the fourth edge (S44). Here, the overlapping edge (345) of the second control circuit board (CCB2) may refer to an edge of the second control circuit board (CCB2) that overlaps the second drive circuit board (CB2; for example, the mounting portion (MM2) of the second drive circuit board (CB2)).

[0154] The mounting portion (MM2) may be disposed between the panel connection portion (PP2) and the board connection portion (BB2). The mounting portion (MM2) may include a second data driving circuit (DDC2). For example, the second data driving circuit (DDC2) may be disposed (or mounted) on the mounting portion (MM2). The first groove (61) and the second groove (62) described above may be disposed between the second data driving circuit (DDC2) and the panel connection portion (PP2). The mounting portion (MM2) may be defined by the second side (S22), the third side (S33), the first virtual side (VS11), and the second virtual side (VS22) of the second driving circuit board (CB2). For example, the mounting portion (MM2) may mean an area surrounded by the second side (S22), the third side (S33), the first virtual side (VS11), and the second virtual side (VS22) among the second driving circuit board (CB2).

[0155] Each of the second pads (PD2) of the display panel (110) may extend in a direction parallel to the second side (S2) of the second driving circuit board (CB2). For example, each of the second pads (PD2) may extend in the second direction (DR2). In other words, the second pads (PD2) may extend in the same direction as the second panel terminals (P2) of the second driving circuit board (CB2) described above.

[0156] Meanwhile, since the third driving circuit board (CB3) has substantially the same structure as the second driving circuit board (CB2) described above, the description of the third driving circuit board (CB3) refers to the description of the second driving circuit board (CB2) of FIG. 4 described above.

[0157] FIG. 5 is a drawing for explaining another embodiment of the first drive circuit board (CB1).

[0158] The first driving circuit board (CB1) of FIG. 5 has a difference from the first driving circuit board (CB1) of FIG. 3 described above in the extension direction of the first panel terminal (P1), and this difference will be specifically described as follows.

[0159] As illustrated in FIG. 5, a plurality of first panel terminals (P1) of a panel connection portion (PP1) may overlap with a plurality of first pads (PD1) of a display panel (110), respectively. The first panel terminals (P1) may be arranged along a fourth direction (DR4).

[0160] The first panel terminal (P1) may extend in a direction parallel to the fourth side (S4). For example, each of the first panel terminals (P1) may extend in the second direction (DR2). In this case, the first pads (PD1) of the display panel (110) may also extend in the second direction (DR2).

[0161] FIG. 6 is a drawing for explaining another embodiment of the first drive circuit board (CB1).

[0162] The first driving circuit board (CB1) of FIG. 6 has a difference from the first driving circuit board (CB1) of FIG. 3 described above in the arrangement positions of the first groove (51) and the second groove (52), and this difference will be described in detail as follows.

[0163] As illustrated in Fig. 6, the first groove (51) and the second groove (52) may face each other in the extension direction of the tangent line (LL). For example, the first groove (51) and the second groove (52) may be arranged on the fourth side (S4) and the fifth side (S5) respectively to face each other in the fourth direction (DR4). Accordingly, the virtual fourth line (L44) passing through the center of the first groove (51) and the center of the second groove (52) may be parallel to the tangent line (LL). In other words, the virtual fourth line (L44) may be parallel to the first side (S1) of the first driving circuit board (CB1).

[0164] In addition, the aforementioned virtual fourth line (L44) may be positioned at different distances from one edge and the other edge of the first data driving circuit (DDC1). For example, the distance (d11) between the fourth line (L44) and one edge of the first data driving circuit (DDC1) may be greater than the distance (d22) between the fourth line (L4) and the other edge of the first data driving circuit (DDC1). According to one embodiment, the distance between the fourth line (L4) and the first data driving circuit (DDC1) may gradually decrease in a direction from one edge of the first data driving circuit (DDC1) toward the other edge of the first data driving circuit (DDC1) (e.g., the first direction (DR1)).

[0165] According to one embodiment, the distance (hereinafter, the first distance) between one edge of the first data driving circuit (DDC1) described above and the first panel terminal (P1) arranged corresponding to the one edge of the first data driving circuit (DDC1) may be different from the distance (hereinafter, the second distance) between the other edge of the first data driving circuit (DDC1) and the first panel terminal (P1) arranged corresponding to the other edge of the first data driving circuit (DDC1). For example, the first distance may be greater than the second distance. According to one embodiment, in the first driving circuit board (CB1), the distance between the first panel terminals (P1) and the first data driving circuit (DDC1) may gradually decrease in a direction (e.g., the first direction (DR1)) from one edge of the first data driving circuit (DDC1) toward the other edge of the first data driving circuit (DDC1).

[0166] FIG. 7 is a drawing for explaining another embodiment of the first drive circuit board (CB1).

[0167] The first driving circuit board (CB1) of FIG. 7 has a difference from the first driving circuit board (CB1) of FIG. 3 described above in the arrangement positions of the first groove (51) and the second groove (52), and this difference will be described in detail as follows.

[0168] As illustrated in Fig. 7, the first groove (51) and the second groove (52) may be arranged on the fourth side (S4) and the fifth side (S5) respectively, facing each other in the first direction (DR1). Accordingly, the virtual fourth line (L4) passing through the center of the first groove (51) and the center of the second groove (52) may be parallel to the sixth side (S6) of the first driving circuit board (CB1).

[0169] Additionally, the first groove (51) and the second groove (52) can be arranged between the first data driving circuit (DDC1) and the board connection portion (BB1). Accordingly, the fourth line (L40) can be arranged between the first data driving circuit (DDC1) and the board connection portion (BB1).

[0170] The first data driving circuit (DDC1) of the mounting portion (MM1) may be arranged between the fourth line (L40) and the tangent line (LL). In other words, the first data driving circuit (DDC1) may be arranged on the mounting portion (MM1) between the fourth line (L40) and the tangent line (LL).

[0171] FIG. 8 is a drawing for explaining another embodiment of the first drive circuit board (CB1).

[0172] The first driving circuit board (CB1) of FIG. 8 has a difference from the first driving circuit board (CB1) of FIG. 7 described above in the arrangement shape of the first data driving circuit (DDC1), and this difference will be specifically described as follows.

[0173] As illustrated in FIG. 8, the first data driving circuit (DDC1) may have a shape that is inclined in the same manner as the panel connecting portion (PP1). For example, the first data driving circuit (DDC1) may extend along the first side (S1) of the panel connecting portion (PP1). In other words, the first data driving circuit (DDC1) may extend along the tangent line (LL) direction or the fourth direction (DR4). As a specific example, a virtual fifth line (L50) that is parallel to the tangent line (LL) direction and passes through the center of the first data driving circuit (DDC1) may extend along the fourth direction (DR4). Accordingly, sides of the first data driving circuit (DDC1) that face each other in the fifth direction (DR5) (e.g., the upper side and the lower side of the first data driving circuit (DDC1)) may be parallel to the first side (S1).

[0174] The extension direction (e.g., L50) of the first data driving circuit (DDC1) is parallel to the first side (S1) and can intersect the sixth side (S6; or the fourth line (L40)).

[0175] FIG. 9 is a plan view of a first drive circuit board (CB1) according to another embodiment, and FIG. 10 is a cross-sectional view taken along line I-I' of FIG. 9.

[0176] The first driving circuit board (CB1) of FIGS. 9 and 10 has a difference from the first driving circuit board (CB1) of FIG. 3 described above in the width of the connection line, and this difference will be specifically described as follows.

[0177] As illustrated in FIGS. 9 and 10, the first driving circuit board (CB1) may further include a plurality of connection lines (CL) that electrically connect the first data driving circuit (DDC1) and the plurality of first panel terminals (P1) to each other.

[0178] The connection lines (CL) may have different lengths. For example, since the panel connection portion (PP1) has a shape that is inclined in a diagonal manner with respect to the first data driving circuit (DDC1) of the mounting portion (MM1), the connection lines (CL) for connecting the first panel terminals (P1) of the first data driving circuit (DDC1) and the panel connection portion (PP1) may have different lengths. For example, the farther the first panel terminal (P1) is from the first data driving circuit (DDC1), the longer the connection line may be connected.

[0179] According to one embodiment, a connecting line may have a larger width as it has a longer length. For example, among the first connecting line (CL1), the second connecting line (CL2), and the third connecting line (CL3), the first connecting line (CL1) having the longest length may have the largest width (W1), and among the first to third connecting lines (CL1-CL3) described above, the third connecting line (CL3) having the shortest length may have the smallest width (W3). Meanwhile, the length of the second connecting line (CL2) is longer than that of the first connecting line (CL1) and shorter than that of the third connecting line (CL3), so that the width (W2) of the second connecting line (CL2) may be smaller than the width (W1) of the first connecting line (CL1) and larger than the width (W3) of the third connecting line (CL3).

[0180] The first panel terminals (P1) of the panel connector (PP1) may include, for example, a 1-1 panel terminal (P11), a 1-2 panel terminal (P12), and a 1-3 panel terminal (P13). Here, among the 1-1 panel terminal (P11), the 1-2 panel terminal (P12), and the 1-3 panel terminal (P13), the 1-1 panel terminal (P11) may be arranged farthest from the first data driving circuit (DDC1), and among the panel terminals, the 1-3 panel terminal (P13) may be arranged closest to the first data driving circuit (DDC1). In addition, the 1-2 panel terminal (P12) may be arranged closer to the first data driving circuit (DDC1) than the 1-1 panel terminal (P11) and farther from the first data driving circuit (DDC1) than the 1-3 panel terminal (P13).

[0181] The 1-1 panel terminal (P11) may be connected to the first output terminal and the first connection line (CL1) of the first data driving circuit (DDC1), the 1-2 panel terminal (P12) may be connected to the second output terminal and the second connection line (CL2) of the first data driving circuit (DDC1), and the 1-3 panel terminal (P13) may be connected to the third output terminal and the third connection line (CL3) of the first data driving circuit (DDC1).

[0182] According to one embodiment, since the longer the connection line, the greater the width, the more resistance variation between the connection lines can be minimized. Accordingly, the voltage drop (e.g., IR drop) variation between the data voltages applied from the first data driving circuit (DDC1) to the first data lines can be minimized. Therefore, the image quality of the display device (100) can be improved.

[0183] Meanwhile, the second driving circuit board (CB2) may also include a plurality of connection lines as described above. The plurality of connection lines of the second driving circuit board (CB2) may respectively connect the second data driving circuit (DDC2) and a plurality of second panel terminals (P2). At this time, the plurality of connection lines of the second driving circuit board (CB2) may have the same length and the same width.

[0184] Fig. 11 is a plan view of a first drive circuit board (CB1) according to another embodiment, and Fig. 12 is a cross-sectional view taken along line II-II' of Fig. 11.

[0185] The first driving circuit board (CB1) of FIGS. 11 and 12 differs from the first driving circuit board (CB1) of FIG. 3 described above in that it further includes a trench (TRC). This difference will be specifically described as follows.

[0186] As illustrated in FIGS. 11 and 12, the first driving circuit board (CB1) may further include a trench (TRC). The trench (TRC) may be positioned between the first groove (51) and the second groove (52). The trench (TRC) may connect the first groove (51) and the second groove (52) to each other.

[0187] As illustrated in FIG. 12, the trench (TRC) may have a shape that is sunken in the thickness direction of the mounting portion (MM1) of the first driving circuit board (CB1) in the mounting portion (MM1). For example, the trench (TRC) may have a shape that is sunken in the mounting portion (MM1) in the reverse direction of the third direction (DR3) (hereinafter, referred to as the third reverse direction). Accordingly, the first driving circuit board (CB1) may have a smaller thickness in the area where the trench (TRC) is arranged. In other words, the first driving circuit board (CB1) may have a smaller thickness in the area where the trench (TRC) is arranged than in the area where the trench (TRC) is not arranged. Here, the thickness may be a size in the third direction (DR3).

[0188] From a planar perspective as in Fig. 11, the trench (TRC) may have a rectangular shape. However, this is not limited to the shape, and for example, the trench (TRC) may have a circular shape.

[0189] Meanwhile, in Fig. 11, for example, at least one of the first groove (51) and the second groove (52) may be omitted.

[0190] According to one embodiment, the first driving circuit board (CB1) can be more easily bent clockwise along the arrow direction (AR) by the trench (TRC). In addition, when the first driving circuit board (CB1) rotates in the arrow direction, the stress in the bending region of the first driving circuit board (CB1) can be reduced by the trench (TRC). Therefore, when the first driving circuit board (CB1) is bent, damage to the connection lines (CL) in the bending region can be prevented.

[0191] FIG. 13 is a plan view of a first drive circuit board (CB1) according to another embodiment, and FIG. 14 is a cross-sectional view taken along line III-III' of FIG. 13.

[0192] The first driving circuit board (CB1) of FIGS. 13 and 14 differs from the first driving circuit board (CB1) of FIG. 3 described above in that it further includes a plurality of trenches (TRC'). This difference will be specifically described as follows.

[0193] As illustrated in FIGS. 13 and 14, the first driving circuit board (CB1) may further include a plurality of trenches (TRC'). The trenches (TRC') may be arranged between the first groove (51) and the second groove (52). The trenches (TRC') may be arranged spaced apart from each other between the first groove (51) and the second groove (52). The spacing between adjacent trenches (TRC') may be the same.

[0194] As illustrated in FIG. 14, the trench (TRC') may have a shape that is sunken in the thickness direction of the mounting portion (MM1) of the first driving circuit board (CB1) in the mounting portion (MM1). For example, the trench (TRC') may have a shape that is sunken in the third reverse direction in the mounting portion (MM1). Accordingly, the first driving circuit board (CB1) may have a smaller thickness in the area where the trenches (TRC') are arranged. In other words, the first driving circuit board (CB1) may have a smaller thickness in the area where the trenches (TRC') are arranged than in the area where the trenches (TRC') are not arranged. Here, the thickness may be a size in the third direction (DR3).

[0195] From a planar perspective as in Fig. 13, the trench (TRC') may have a circular shape. However, this is not limited to the shape, and for example, the trench (TRC') may have a polygonal shape such as a triangle or a square.

[0196] Meanwhile, in Fig. 13, for example, at least one of the first groove (51) and the second groove (52) may be omitted.

[0197] Fig. 15 is a cross-sectional view of another embodiment taken along line III-III' of Fig. 13.

[0198] The first driving circuit board (CB1) of FIG. 15 differs from the first driving circuit board (CB1) of FIG. 14 described above in that it further includes a plurality of trenches (TRC1, TRC2) on its upper surface (81) and lower surface (82), respectively. This difference will be specifically described as follows.

[0199] As illustrated in FIG. 15, a plurality of first trenches (TRC1) and a plurality of second trenches (TRC2) may be arranged on the upper surface (81) and the lower surface (82) of the first driving circuit board (CB1), respectively.

[0200] As illustrated in FIG. 15, the first trench (TRC1) may have a shape that is sunken in the thickness direction of the mounting portion (MM1) of the first driving circuit board (CB1) in the mounting portion (MM1). For example, the first trench (TRC1) may have a shape that is sunken in the third reverse direction in the upper surface (81) of the mounting portion (MM1). Accordingly, the upper surface (81) of the first driving circuit board (CB1) may have a smaller thickness in the area where the first trenches (TRC1) are arranged. In other words, the first driving circuit board (CB1) may have a smaller thickness in the area where the first trenches (TRC1) are arranged than in the area where the first trenches (TRC1) are not arranged. Here, the thickness may be a size in the third direction (DR3).

[0201] The second trench (TRC2) may have a shape that is sunken in the thickness direction of the mounting portion (MM1) of the first driving circuit board (CB1), as illustrated in FIG. 15. For example, the second trench (TRC2) may have a shape that is sunken in the third direction (DR3) from the lower surface (82) of the mounting portion (MM1). Accordingly, the lower surface (82) of the first driving circuit board (CB1) may have a smaller thickness in the area where the second trenches (TRC2) are arranged. In other words, the first driving circuit board (CB1) may have a smaller thickness in the area where the second trenches (TRC2) are arranged than in the area where the second trenches (TRC2) are not arranged. Here, the thickness may be a size in the third direction (DR3).

[0202] The first trench (TRC1) and the second trench (TRC2) may be arranged to face each other in the third direction (DR3). For example, the first trench (TRC1) and the second trench (TRC2) may overlap in the third direction (DR3).

[0203] According to one embodiment, the first driving circuit board (CB1) can be more easily bent by the first trench (TRC1) and the second trench (TRC1), and stress in the bending region of the first driving circuit board (CB1) can be reduced. Therefore, when the first driving circuit board (CB1) is bent, damage to the connection lines (CL) in the bending region can be prevented.

[0204] Fig. 16 is a cross-sectional view of another embodiment along line III-III' of Fig. 13.

[0205] The first driving circuit board (CB1) of FIG. 16 differs from the first driving circuit board (CB1) of FIG. 15 described above in that the trenches (TRC1, TRC2) on the upper surface (81) and the lower surface (82) thereof are arranged so as not to correspond to each other. This difference will be specifically described as follows.

[0206] As illustrated in FIG. 16, a plurality of first trenches (TRC1) and a plurality of second trenches (TRC2) may be arranged on the upper surface (81) and the lower surface (82) of the first driving circuit board (CB1), respectively.

[0207] As illustrated in FIG. 16, the first trench (TRC1) may have a shape that is sunken in the thickness direction of the mounting portion (MM1) of the first driving circuit board (CB1). For example, the first trench (TRC1) may have a shape that is sunken in the third reverse direction in the upper surface (81) of the mounting portion (MM1). Accordingly, the upper surface (81) of the first driving circuit board (CB1) may have a smaller thickness in the area where the first trenches (TRC1) are arranged. In other words, the first driving circuit board (CB1) may have a smaller thickness in the area where the trenches (TRC) are arranged than in the area where the trenches (TRC) are not arranged. Here, the thickness may be a size in the third direction (DR3).

[0208] The second trench (TRC2) may have a shape that is sunken in the thickness direction of the mounting portion (MM1) of the first driving circuit board (CB1), as illustrated in FIG. 16. For example, the second trench (TRC2) may have a shape that is sunken in the third direction (DR3) from the lower surface (82) of the mounting portion (MM1). Accordingly, the lower surface (82) of the first driving circuit board (CB1) may have a smaller thickness in the area where the second trenches (TRC2) are arranged. In other words, the first driving circuit board (CB1) may have a smaller thickness in the area where the second trenches (TRC2) are arranged than in the area where the second trenches (TRC2) are not arranged. Here, the thickness may be a size in the third direction (DR3).

[0209] The first trench (TRC1) and the second trench (TRC2) may be arranged so as not to face each other in the third direction (DR3). For example, the first trench (TRC1) and the second trench (TRC2) may not overlap each other in the third direction (DR3). In other words, from a planar perspective, the second trench (TRC2) may be arranged between adjacent first trenches (TRC1). Similarly, from a planar perspective, the first trench (TRC1) may be arranged between adjacent second trenches (TRC2).

[0210] According to one embodiment, the first driving circuit board (CB1) can be bent more easily by the first trench (TRC1) and the second trench (TRC1), and also the stress in the bending area of ​​the first driving circuit board (CB1) can be reduced. Therefore, when the first driving circuit board (CB1) is bent, damage to the connection lines (CL) in the bending area can be prevented. In addition, since the first trench (TRC1) and the second trench (TRC2) do not overlap, it is advantageous to form the trenches (TRC1, TRC2) on the upper surface (81) and the lower surface (82) of the first driving circuit board (CB1) even when the thickness of the first driving circuit board (CB1) is not sufficiently large.

[0211] According to one embodiment, at least one of the first groove (61) and the second groove (62) of the second driving circuit board (CB2) and the third driving circuit board (CB3) of FIG. 1 may be disposed between the corresponding data driving circuit and the corresponding board connection portion (BB1), as in FIG. 7 described above.

[0212] According to one embodiment, at least one of the second driving circuit board (CB2) and the third driving circuit board (CB3) of FIG. 1 may further include trenches (TRC, TRC', TRC1, TRC2) as illustrated in FIGS. 11 to 16 described above.

[0213] Fig. 17 is a plan view showing a display device according to another embodiment, and Fig. 18 is an enlarged view of area A3 of Fig. 17.

[0214] The display devices of FIGS. 17 and 18 differ from the display devices of FIGS. 1 and 3 described above in that each edge of the display panel (110) and the display area (DA) has a diagonal shape. This difference will be specifically described as follows.

[0215] As illustrated in FIGS. 17 and 18, one corner of the display panel (110) may have a diagonal portion (DG1; hereinafter, referred to as the first diagonal portion (DG1)). Meanwhile, a first straight portion (ST1) of the display panel (110) may be arranged on one side of the first diagonal portion (DG1). The first straight portion (ST1) may extend, for example, along the first direction (DR1).

[0216] In addition, as illustrated in FIGS. 17 and 18, the display area (DA) may have a shape that matches the shape of the display panel (110). For example, one corner of the display area (DA) may have a diagonal portion (DG2; hereinafter, referred to as the second diagonal portion (DG2)). As a specific example, the second diagonal portion (DG2) of the display area (DA) may be arranged to correspond to the first diagonal portion (DG1) of the display panel (110). Here, the second diagonal portion (DG2) and the first diagonal portion (DG1) may be parallel to each other. Meanwhile, a second straight portion (ST2) of the display area may be arranged on one side of the second diagonal portion (DG2). The second straight portion (ST2) may extend, for example, along the first direction (DR1). The first straight portion (ST1) and the second straight portion (ST2) may be arranged to be parallel to each other.

[0217] The first drive circuit board (CB1) can be placed in a diagonal non-display area (NDA) between the first diagonal portion (DG1) and the second diagonal portion (DG2).

[0218] According to one embodiment, the first side (S1) and the sixth side (S6) of the first driving circuit board (CB1) are not parallel. For example, the longest side (e.g., the first side (S1)) among the sides overlapping the display panel (110) and the longest side (e.g., the sixth side (S6)) among the sides overlapping the first control circuit board (CCB1) extend not parallel. In other words, the first side (S1) is the side overlapping the display panel (110) on the upper side of the first data driving circuit (DDC1), and the sixth side (S6) is the side overlapping the first control circuit board (CCB1) on the lower side of the first data driving circuit (DDC1), and the first side (S1) and the sixth side (S6) may intersect. Here, the first side (S1) can be in contact with the display panel (110), and the sixth side (S6) can be in contact with the first control circuit board (CCB1). The angle between the first side (S1) and the sixth side (S6) can be greater than 0 degrees. For example, the angle (θ) between the first virtual side (VS1) parallel to the first side (S1) and the virtual line (124) parallel to the sixth side (S6) can be greater than 0 degrees and less than 90 degrees. As a specific example, the angle (e.g., θ) between the extension direction of the first side (S1) and the extension direction of the sixth side (S6) can be 3 degrees.

[0219] According to one embodiment, the first side (S1) of the first drive circuit board (CB1) may be parallel to the first diagonal portion (DG1). In addition, a virtual first line (L1) passing through the center of the panel connection portion (PP1) and perpendicularly intersecting the second side (S2) may be parallel to the first diagonal portion (DG1).

[0220] According to one embodiment, a virtual second line (L2) passing through the center of the panel connection portion (PP1) so as to perpendicularly intersect the first side (S1) may perpendicularly intersect the first diagonal portion (DG1). At this time, the second line (L2) may pass through the center of any one of the first panel terminals (P1) connected to the first data lines. For example, when a first data line located at the center among a plurality of first data lines connected to the first driving circuit board (CB1) is defined as a center data line, and a first panel terminal (P1) connected to the center data line is defined as a center panel terminal, the above-described second line (L2) may pass through the center of the center panel terminal.

[0221] According to one embodiment, the first panel terminal (P1) may extend along a direction parallel to the second side (S2). For example, each of the first panel terminals (P1) may extend along the fifth direction (DR5).

[0222] According to one embodiment, the first board terminals (B1) may be arranged along the first direction (DR1). The first board terminals (B1) may extend along a direction parallel to the fourth side (S4). For example, the first board terminals (B1) may extend along the second direction (DR2).

[0223] According to one embodiment, a virtual third line (L3) passing through the center of the board connection portion (BB1) so as to perpendicularly intersect the fourth side (S4) may not be parallel to the first line (L1; or the first diagonal portion (DG1)) described above. The angle between the third line (L3) and the first line (L1) may be equal to the angle (e.g., θ) between the first side (S1) and the fifth side (S5) described above.

[0224] According to one embodiment, a virtual fourth line (L4) passing through the center of the first groove (51) and the center of the second groove (52) may be parallel to the sixth side (S6) of the first driving circuit board (CB1).

[0225] According to one embodiment, the aforementioned virtual fourth line (L4) may be positioned at an equal distance from one edge and the other edge of the first data driving circuit (DDC1). For example, the distance between the fourth line (L4) and one edge of the first data driving circuit (DDC1) may be equal to the distance between the fourth line (L4) and the other edge of the first data driving circuit (DDC1).

[0226] According to one embodiment, since the panel connection portion (PP1) of the first driving circuit board (CB1) extends along the extension direction of the first diagonal portion (DG1; or the second diagonal portion (DG2)), the panel connection portion (PP1) can be arranged along the first diagonal portion (DG1; or the second diagonal portion (DG2)) in the diagonal non-display area (NDA) between the first diagonal portion (DG1) and the second diagonal portion (DG2). In addition, accordingly, the panel connection portion (PP1) can be arranged at the center of the diagonal non-display area (NDA) without encroaching on the display area (DA). Accordingly, when the first driving circuit board (CB1) is attached to the display panel (110) in the diagonal area, the attachment area of ​​the first driving circuit board (CB1) and the display panel (110) can be minimized, and thus the size of the display area (DA) in the diagonal area can be prevented from being reduced.

[0227] According to one embodiment, the second driving circuit board (CB2) and the third driving circuit board (CB3) of FIG. 17 may have the same configuration as the second driving circuit board (CB2) of FIG. 4 described above.

[0228] According to one embodiment, the first drive circuit board (CB1) of FIGS. 17 and 18 may have the same configuration as any one of the first drive circuit boards (CB1) of FIGS. 5 to 16 described above.

[0229] The display device (10) according to the embodiment can be applied to various electronic devices. An electronic device according to one embodiment includes the above-described display device (10), and may further include a module or device having additional functions in addition to the display device (10).

[0230] FIG. 19 is a block diagram of an electronic device according to one embodiment. Referring to FIG. 19, an electronic device (50) according to one embodiment may include a display module (11), a processor (12), a memory (13), and a power module (14). The electronic device (50) may further include an input module (15), a non-video output module (16), and / or a communication module (17).

[0231] The electronic device (50) can output various information in the form of an image through the display module (11). When the processor (12) executes an application stored in the memory (13), the image information provided by the application can be provided to the user through the display module (11). The power module (14) may include a power supply module such as a power adapter or a battery device, and a power conversion module that converts the power supplied by the power supply module to generate power necessary for the operation of the electronic device (50). The input module (15) may provide input information to the processor (12) and / or the display module (11). The non-image output module (16) may receive information other than images transmitted from the processor (12), such as sound, haptics, and light, and provide the same to the user. The communication module (17) is a module responsible for transmitting and receiving information between the electronic device (50) and an external device, and may include a receiving unit and a transmitting unit.

[0232] At least one of the components of the electronic device (11) described above may be included in the display device according to the embodiments described above. In addition, some of the individual modules functionally included in one module may be included in the display device, while others may be provided separately from the display device. For example, the display device may include the display module (11), and the processor (12), memory (13), and power module (14) may be provided in the form of other devices within the electronic device (50) other than the display device.

[0233] FIGS. 20, 21, and 22 are schematic diagrams of electronic devices according to various embodiments. FIGS. 20 to 22 illustrate examples of various electronic devices to which a display device (10) according to the embodiments is applied.

[0234] FIG. 20 illustrates examples of electronic devices, including a smartphone (10_1a), a tablet PC (10_1b), a laptop (10_1c), a TV (10_1d), and a desk monitor (10_1e).

[0235] In addition to the display module (11), the smartphone (10_1a) may include an input module such as a touch sensor and a communication module. The smartphone (10_1a) may process information received through the communication module or other input modules and display the information through the display module of the display device.

[0236] In the case of tablet PCs (10_1b), laptops (10_1c), TVs (10_1d), and desk monitors (10_1e), they also include display modules and input modules similar to smartphones (10_1a), and in some cases, may further include communication modules.

[0237] Figure 21 illustrates an example in which an electronic device including a display module is applied to a wearable electronic device. The wearable electronic device may be a smart glasses (10_2a), a head-mounted display (10_2b), a smart watch (10_2c), or the like.

[0238] Smart glasses (10_2a) and head-mounted displays (10_2b) may include a display module that emits a display image and a reflector that reflects the emitted display image and provides it to the user's eyes, thereby providing a virtual reality or augmented reality screen to the user.

[0239] The smartwatch (10_2c) includes a biometric sensor as an input device, and can provide biometric information recognized by the biometric sensor to the user through a display module.

[0240] FIG. 22 illustrates an example in which an electronic device including a display module is applied to a vehicle. For example, the electronic device (10_3) may be applied to a dashboard, center fascia, etc. of a vehicle, or may be applied to a CID (Center Information Display) placed on a dashboard of a vehicle, or a room mirror display replacing a side mirror. Those skilled in the art to which the present disclosure pertains will understand that the present disclosure may be implemented in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present disclosure is indicated by the scope of the claims described below rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present disclosure.

[0241] Meanwhile, this specification and drawings disclose preferred embodiments of this specification, and although specific terms are used, they are used only in a general sense to easily explain the technical contents of this specification and help understand the invention, and are not intended to limit the scope of this specification. It will be apparent to those skilled in the art to which this specification pertains that other modified examples based on the technical ideas of this specification are possible in addition to the embodiments disclosed herein.

Claims

1. A display panel including a display area and a non-display area; A first circuit board connected to a non-display area of ​​the above display panel and capable of being bent; A driving circuit arranged on the first circuit board; A second circuit board connected to the first circuit board; The first circuit board includes a first side overlapping the display panel on the upper side of the driving circuit and a second side overlapping the second circuit board on the lower side of the driving circuit, The first variable is positioned between the display area and the pad of the display panel, A display device in which the extension direction of the first side and the extension direction of the second side intersect.

2. In paragraph 1, A display device in which the angle between the extension direction of the first side and the extension direction of the second side is greater than 0 degrees and less than 90 degrees.

3. In paragraph 2, A display device in which the angle between the extension direction of the first side and the extension direction of the second side is 3 degrees.

4. In paragraph 1, The entire first side overlaps the display panel, A display device in which the entire second side overlaps the second circuit board.

5. In paragraph 1, The above first variable is in contact with the display panel, The second side is a display device that contacts the second circuit board.

6. In paragraph 1, The above first circuit board, A first groove arranged on a third side between one side of the first side and one side of the second side; and A display device further comprising a second groove disposed on a fourth side between the other side of the first side and the other side of the second side.

7. In paragraph 6, A display device in which the first groove and the second groove are positioned facing each other.

8. In paragraph 6, A display device in which a virtual line passing through the center of the first groove and the center of the second groove intersects the extension direction of the first side.

9. In paragraph 6, A display device in which an imaginary line passing through the center of the first groove and the center of the second groove is parallel to the extension direction of the second side.

10. In paragraph 6, A display device in which a virtual line passing through the center of the first groove and the center of the second groove is arranged between the first side and the driving circuit.

11. In paragraph 6, A display device in which a virtual line passing through the center of the first groove and the center of the second groove is arranged between the second side and the driving circuit.

12. In paragraph 6, A display device in which a virtual line passing through the center of the first groove and the center of the second groove is parallel to the extension direction of the driving circuit.

13. In paragraph 12, The extension direction of the above driving circuit is parallel to the extension direction of the second side, A display device in which an imaginary line passing through the center of the first groove and the center of the second groove is parallel to the extension direction of the second side.

14. In paragraph 6, A display device in which a virtual line passing through the center of the first groove and the center of the second groove intersects the extension direction of the driving circuit.

15. In paragraph 14, The extension direction of the above driving circuit is parallel to the extension direction of the first side, A display device in which an imaginary line passing through the center of the first groove and the center of the second groove is parallel to the extension direction of the second side.

16. In paragraph 6, The first groove of the third side is sunken toward the fourth side, The second groove of the fourth side is a display device sunken toward the third side.

17. In paragraph 1, A display device in which the edge of the display panel overlapping the first circuit board includes a first curved portion.

18. In paragraph 17, A display device in which the edge of the display area includes a second curved portion arranged to correspond to the first curved portion.

19. In paragraph 18, The above first side is a display device arranged in a non-display area between the first curved portion and the second curved portion.

20. In paragraph 17, The above first side is a display device parallel to the tangent line of the above first curved portion.

21. In paragraph 17, A display device in which an imaginary straight line that intersects the first side perpendicularly and passes through the center of the first side perpendicularly intersects the tangent line of the first curved portion.

22. In paragraph 21, The above first circuit board further includes a plurality of panel terminals connected to the display panel, A display device in which an imaginary straight line that intersects the first side and passes through the center of the first side passes through the center of one of the plurality of panel terminals.

23. In paragraph 22, It is connected to the above driving circuit and further includes a plurality of data lines arranged in the display area, A display device in which any one of the above panel terminals is connected to any one of the data lines located at the center of the plurality of data lines.

24. In paragraph 22, A display device wherein the above one panel terminal is a panel terminal located at the center among the plurality of panel terminals.

25. In paragraph 1, A display device in which the edge of the display panel overlapping the first circuit board includes a first diagonal portion.

26. In paragraph 25, A display device in which the edge of the display area includes a second diagonal portion arranged to correspond to the first diagonal portion.

27. In paragraph 26, The above first side is a display device arranged in a non-display area between the first diagonal portion and the second diagonal portion.

28. In paragraph 25, The above first side is a display device parallel to the above first diagonal section.

29. In paragraph 25, A display device in which an imaginary straight line that intersects the first side perpendicularly and passes through the center of the first side perpendicularly intersects the first diagonal portion.

30. In paragraph 1, The above first circuit board further includes a panel terminal connected to the display panel, The above panel terminal is a display device extending in a direction perpendicular to the extension direction of the first side.

31. In paragraph 1, The above first circuit board further includes a panel terminal connected to the display panel, The above panel terminal is a display device extending in a direction perpendicular to the extension direction of the second side.

32. In paragraph 1, The above first circuit board further includes a plurality of panel terminals connected to the display panel, A display device in which the arrangement direction of the plurality of panel terminals is parallel to the extension direction of the first side.

33. In paragraph 32, It is arranged on the display panel and further includes a plurality of pads each connected to the plurality of panel terminals, A display device in which the arrangement direction of the plurality of pads is parallel to the extension direction of the first side.

34. In paragraph 32, The above first circuit board includes a plurality of connection lines connected to the plurality of panel terminals and the driving circuit, The extension direction of the above driving circuit is parallel to the extension direction of the second side, The above plurality of connecting lines have a length that gradually increases along the extension direction of the driving circuit, A display device having a larger width as the above plurality of connecting lines have a larger length.

35. In paragraph 1, The first circuit board further includes a plurality of board terminals connected to the second circuit board, A display device in which the arrangement direction of the plurality of board terminals is parallel to the extension direction of the second side.

36. In paragraph 6, A display device wherein the first circuit board further includes a trench disposed between the first groove and the second groove.

37. In paragraph 36, The above trench is a display device connecting the first groove and the second groove.

38. In paragraph 6, A display device wherein the first circuit board further includes a plurality of trenches arranged between the first groove and the second groove.

39. In paragraph 38, The above plurality of trenches are spaced apart from each other and are a display device.

40. In paragraph 6, The above first circuit board, At least one first trench disposed on the upper surface of the first circuit board; and A display device comprising at least one second trench disposed on a lower surface of the first circuit board.

41. In paragraph 40, A display device in which at least one first trench and at least one second trench overlap each other.

42. In paragraph 40, From a planar perspective, the second trench is a display device positioned between adjacent first trenches.

43. Processor; memory; and A display device connected to the processor and the memory, The above display device, A display panel including a display area and a non-display area; A first circuit board connected to a non-display area of ​​the above display panel and capable of being bent; A driving circuit arranged on the first circuit board; A second circuit board connected to the first circuit board; The first circuit board includes a first side overlapping the display panel on the upper side of the driving circuit and a second side overlapping the second circuit board on the lower side of the driving circuit, The first variable is positioned between the display area and the pad of the display panel, An electronic device in which the extension direction of the first side and the extension direction of the second side intersect.

Images