High-resolution display device

Abstract

A display device is provided. The display device according to an exemplary embodiment includes a substrate including a display area configured to display an image and a pad area located around the display area, and a first pad unit located on the pad area, wherein the first pad unit includes a first terminal area including a plurality of first pad terminals arranged in a first pattern, and a second terminal area including a plurality of second pad terminals arranged in a second pattern different from the first pattern.

Description

[0001] Cross-references to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2016-0088890, filed on July 13, 2016 with the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure generally relates to display devices. More specifically, this disclosure relates to high-resolution display devices. Background Technology

[0004] Currently known display devices include liquid crystal displays (LCDs), plasma display panels (PDPs), organic light-emitting diode displays (OLEDs), field-effect displays (FEDs), and electrophoretic display devices.

[0005] Specifically, an organic light-emitting diode (OLED) display includes two electrodes and an organic emission layer disposed between the two electrodes, wherein electrons injected from one electrode and holes injected from the other electrode couple with each other in the organic emission layer to generate excitons, and the excitons emit energy to emit light.

[0006] Because organic light-emitting diode (OLED) displays are self-emissive and do not require a separate light source, their thickness and weight can be reduced compared to LCDs. Furthermore, OLED displays are attracting significant attention as the next generation of display devices due to their desirable characteristics such as low power consumption, high brightness, and high response speed.

[0007] To drive the organic light-emitting elements of an organic light-emitting diode display, a printed circuit board (PCB) is bonded to the peripheral area of ​​the substrate, and drive signals are transmitted through the PCB.

[0008] However, as display resolution increases, the number of pads and terminals bonded to the printed circuit board (PCB) also increases. Consequently, the size of the peripheral area where the pads and terminals are located increases, resulting in a smaller display area. Furthermore, if the resistance of the wiring connected to some of the pads and terminals increases, the brightness of the display device decreases.

[0009] The information disclosed in this background section is provided only to enhance the understanding of the background of the present invention, and therefore may contain information that does not constitute prior art known to those skilled in the art in this country. Summary of the Invention

[0010] Embodiments of the present invention provide a display device capable of having a plurality of pad terminals disposed in the peripheral area.

[0011] Furthermore, embodiments of the present invention provide a display device that prevents a decrease in brightness due to increased resistance of wiring located near pad terminals.

[0012] A display device according to an exemplary embodiment includes: a substrate including a display area configured to display an image and a pad area located around the display area; and a first pad unit located on the pad area. The first pad unit includes: a first terminal area including a plurality of first pad terminals arranged in a first pattern; and a second terminal area including a plurality of second pad terminals arranged in a second pattern different from the first pattern.

[0013] The first terminal area and the second terminal area can be arranged along the first direction.

[0014] The plurality of first pad terminals may include: a plurality of first row sub-pad terminals arranged substantially along a first line forming a first angle with respect to a first direction; a plurality of second row pad terminals arranged substantially along a second line and spaced apart from the plurality of first row pad terminals, the second line forming a second angle with respect to the first direction; and a plurality of first terminal connecting lines each connecting one of the plurality of first row pad terminals and one of the plurality of second row pad terminals, each first terminal connecting line having a shape having at least one bend.

[0015] The first tilt angle and the second tilt angle can be substantially equal.

[0016] The first tilt angle and the second tilt angle can each be between 0 degrees and 90 degrees.

[0017] Multiple first-row sub-pad terminals and multiple second-row sub-pad terminals may each have a quadrilateral shape.

[0018] The quadrilateral shape may include a first side parallel to a first direction and a second side adjacent to the first side and parallel to a second direction, wherein the second side may be longer than the first side.

[0019] At least one first dummy pad terminal may be disposed between a pair of adjacent first row sub-pad terminals.

[0020] The first row of sub-pad terminals and at least one first dummy pad terminal may be arranged along the same line.

[0021] At least one second dummy pad terminal may be disposed between a pair of adjacent second row sub-pad terminals.

[0022] The second row of sub-pad terminals and at least one second dummy pad terminal may be arranged along the same line.

[0023] The second terminal area may include two areas located on either side of the first terminal area.

[0024] The first terminal area may include two areas located on either side of the second terminal area.

[0025] The plurality of second pad terminals may each include a pair of second sub-pad terminals spaced apart from each other and a substantially straight second terminal connection line that connects the pair of second sub-pad terminals to each other.

[0026] A pair of second sub-pad terminals can be arranged along a line.

[0027] A pair of second sub-pad terminals may be arranged along a second direction perpendicular to the first direction.

[0028] A pair of second sub-pad terminals may be arranged along a line oriented at a third tilt angle relative to the first direction.

[0029] The third tilt angle can be between 0 degrees and 90 degrees.

[0030] The display device may further include: a substrate film; and a printed circuit board (PCB) located on one side of the substrate film and including a second pad unit, the second pad unit having a shape corresponding to the first pad unit and being coupled to the first pad unit.

[0031] The second pad unit may include a third terminal region and a fourth terminal region, wherein the third terminal region includes a plurality of third pad terminals arranged in a third pattern corresponding to the first pattern, and the fourth terminal region includes a plurality of fourth pad terminals arranged in a fourth pattern corresponding to the second pattern.

[0032] The plurality of third pad terminals may each include: a plurality of third row sub-pad terminals arranged substantially along a third line forming a first tilt angle with the first direction; and a plurality of fourth row sub-pad terminals spaced apart from the plurality of third row sub-pad terminals and arranged substantially along a fourth line forming a second tilt angle with the first direction.

[0033] The fourth terminal area can be located on either side of the third terminal area.

[0034] The fourth terminal area may be located between a pair of third terminal areas.

[0035] Multiple fourth pad terminals may each include a pair of fourth sub-pad terminals spaced apart from each other.

[0036] A pair of fourth sub-pad terminals can be arranged along a line.

[0037] A line may form a third tilt angle with the first direction, and the other side of the basement membrane may be different from one side of the basement membrane.

[0038] Printed circuit boards (PCBs) may also include driver chips located on the other side of the base film.

[0039] The basement membrane can be flexible.

[0040] The first pad terminal can be connected to the corresponding data line in the data line located in the display area.

[0041] The second pad terminal can be connected to the power lines located in the display area.

[0042] The power line may include at least one of the following: drive voltage line, common power line, initialization power line, and gate line.

[0043] According to the above display device, a large number of solder pad terminals can be provided in the peripheral area.

[0044] In addition, it can prevent a decrease in brightness due to increased resistance of wiring around the pad terminals. Attached Figure Description

[0045] Figure 1 This is a schematic top plan view of a display device according to an exemplary embodiment.

[0046] Figure 2 It is along Figure 1 A sectional view taken along line II-II'.

[0047] Figure 3 It is shown Figure 1 A schematic diagram of the display area.

[0048] Figure 4 It is along Figure 3 A sectional view taken from line IV-IV'.

[0049] Figure 5 yes Figure 1 An enlarged view of the first terminal region.

[0050] Figure 6 yes Figure 1 An enlarged view of the second terminal region.

[0051] Figure 7 yes Figure 6 An exemplary variant view of the second terminal region.

[0052] Figure 8 yes Figure 1 An exemplary variant view of the first terminal region.

[0053] Figure 9 It is combined to Figure 1 A schematic top view of the printed circuit board (PCB) of the display device.

[0054] Figure 10 yes Figure 9 An enlarged view of the third terminal region.

[0055] Figure 11 It is along Figure 10 The sectional view taken by line XI-XI'.

[0056] Figure 12 yes Figure 9 An enlarged view of the fourth terminal region.

[0057] Figure 13 It is along Figure 12 A sectional view taken from line XIII-XIII'.

[0058] Figure 14 yes Figure 12 An exemplary variant view of the fourth terminal region.

[0059] Figure 15 yes Figure 9 A view of a first exemplary variant of a printed circuit board (PCB).

[0060] Figure 16 yes Figure 9 A view of a second exemplary variant of a printed circuit board (PCB).

[0061] Figure 17 This is a schematic view showing the combined state of a second terminal region formed in a substrate and a fourth terminal region formed on a printed circuit board (PCB).

[0062] Figure 18 It is along Figure 17 A sectional view taken from line XVIII-XVIII'.

[0063] Figure 19 This is a schematic view showing the combined state of a first terminal region formed in a substrate and a third terminal region formed in a printed circuit board (PCB).

[0064] Figure 20 It is along Figure 19 A sectional view taken from line XX-XX'.

[0065] Figure 21 yes Figure 1 An exemplary variant of the view of the display device. Detailed Implementation

[0066] In the following description, exemplary embodiments will be illustrated in detail with reference to the accompanying drawings, enabling those skilled in the art to readily practice these exemplary embodiments. As will be appreciated by those skilled in the art, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. The drawings and description are to be understood in an illustrative rather than restrictive manner. Throughout the specification, the same reference numerals refer to the same elements.

[0067] In addition, for better understanding and ease of description, the dimensions and thickness of each component shown in the accompanying drawings are arbitrarily shown, but the invention is not limited thereto.

[0068] In the accompanying drawings, the thicknesses of layers, films, panels, regions, etc., may be exaggerated for clarity. Some layer and region thicknesses may be exaggerated for better understanding and ease of description. The drawings are therefore not to scale. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it may be directly on said other element, or there may be elements in between.

[0069] Furthermore, unless explicitly stated otherwise, the word "comprise" and variations such as "comprises" or "comprising" will be understood to mean that the described elements are included, but no other elements are excluded. Additionally, when the first part is described as being arranged "on" the second part, this indicates that the first part is arranged on the upper or lower side of the second part, but not limited to its upper side relative to the direction of gravity.

[0070] All values ​​are approximate and subject to change. All examples of specific materials and ingredients are to be considered non-limiting and exemplary only. Other suitable materials and ingredients may be used alternatively.

[0071] Now, refer to Figure 1 and Figure 2 A display device according to an exemplary embodiment is described.

[0072] Figure 1 This is a schematic top plan view of a display device according to an exemplary embodiment, and Figure 2 It is along Figure 1 The sectional view taken from line II-II'.

[0073] Reference Figure 1 and Figure 2The display device according to this exemplary embodiment may include a substrate SUB and a printed circuit board (PCB) 300. In this exemplary embodiment, a first terminal region TL_1 and a second terminal region TL_2 are formed at a first pad unit PAD_1 of the printed circuit board (PCB) 300, and a plurality of first pad terminals PAD_TL_A (see reference) are provided at the first terminal region TL_1. Figure 5 ) and multiple second pad terminals PAD_TL_B located at the second terminal area TL_2 (see reference) Figure 6 Different patterns can be formed.

[0074] Reference Figure 1 and Figure 2 The display device according to this exemplary embodiment may include a display area DA and a pad area PNL_PAD. The display area DA and the pad area PNL_PAD represent areas located on the substrate SUB.

[0075] The display area DA is the area where images are displayed, and the display panel 100 that emits light (see reference). Figure 3 This can be set in the display area DA. The display panel 100 will be further described below.

[0076] The pad area PNL_PAD is the area located around the display area DA, and the pad area PNL_PAD can be combined with the printed circuit board (PCB) 300 to transmit signals from an external source. The first pad unit PAD_1 is disposed in the pad area PNL_PAD, thereby the first pad unit PAD_1 and the printed circuit board (PCB) 300 can be electrically connected.

[0077] In this case, the first pad unit PAD_1 may include a first terminal region TL_1 and a second terminal region TL_2. The first terminal region TL_1 and the second terminal region TL_2 represent regions located on the substrate SUB.

[0078] Multiple first pad terminals PAD_TL_A (refer to) Figure 5 This can be set in the first terminal area TL_1, and multiple second pad terminals PAD_TL_B (refer to...) Figure 6 The first pad terminals PAD_TL_A can be provided in the second terminal area TL_1 with a first pattern. Furthermore, the second pad terminals PAD_TL_B can be provided in the second terminal area TL_2 with a second pattern different from the first pattern. Here, the pattern refers to the shape formed by the pad terminals in the first terminal area TL_1 and the second terminal area TL_2.

[0079] In other words, according to this exemplary embodiment, the plurality of first pad terminals PAD_TL_A and the plurality of second pad terminals PAD_TL_B in the first terminal region TL_1 and the second terminal region TL_2 may be provided with different shapes. The structure of the first terminal region TL_1 and the second terminal region TL_2 is described in further detail below.

[0080] The first terminal area TL_1 and the second terminal area TL_2 of the pad area PNL_PAD can be arranged parallel to each other in the first direction. In this case, the pad area PNL_PAD can be arranged to be separated from the display area DA in the second direction. In the following figures, the X-axis and Y-axis representing coordinates represent the first direction and the second direction, respectively.

[0081] In this exemplary embodiment, such as Figure 1 As shown, the second terminal region TL_2 may be located on both sides of the first terminal region TL_1. However, the arrangement of the first terminal region TL_1 and the second terminal region TL_2 is not limited to this, and is related to... Figure 21 Similar to the exemplary variant shown, the second terminal region TL_2 may be disposed between a pair of first terminal regions TL_1.

[0082] The connection wiring CL is located between the display area DA and the pad area PNL_PAD, and the display area DA and the pad area PNL_PAD can be connected by the connection wiring CL. The connection wiring CL can be connected to multiple signal lines located in the display area DA. In addition, the connection wiring CL can be connected to the first pad terminal PAD_TL_A and multiple second pad terminals PAD_TL_B of the pad area PNL_PAD.

[0083] In this scenario, the connection wiring CL may include a first connection wiring CL_A and a second connection wiring CL_B. The first connection wiring CL_A may connect the display area DA and the first terminal area TL_1 to each other, and the second connection wiring CL_B may connect the display area DA and the second terminal area TL_2 to each other.

[0084] The first pad unit PAD_1 of the pad area PNL_PAD of the printed circuit board (PCB) 300 is bonded to the substrate SUB, thereby transmitting the signals required to drive the display panel 100. The driver chip 350 may be mounted on the substrate film 310 of the printed circuit board (PCB) 300 and can be used to drive the display panel 100.

[0085] In this configuration, in the printed circuit board (PCB) 300, a second pad unit PAD_2 is formed at one end of the substrate film 310, and the second pad unit PAD_2 can be bonded to the first pad unit PAD_1 of the substrate SUB. The second pad unit PAD_2 can be configured to face the first pad unit PAD_1.

[0086] The second pad unit PAD_2 may include a third terminal area TL_3 and a fourth terminal area TL_4. The third terminal area TL_3 and the fourth terminal area TL_4 represent areas located on the base film 310.

[0087] Multiple third pad terminals PAD_TL_C can be set in the third terminal area TL_3 (see reference). Figure 10 Furthermore, multiple fourth pad terminals PAD_TL_D can be set in the fourth terminal area TL_4 (refer to...). Figure 12 ).

[0088] In the third terminal region TL_3, multiple third pad terminals PAD_TL_C can be formed by a third pattern corresponding to the first pattern described above. In this case, the third pattern may have the same or similar shape as the first pattern. Furthermore, in the fourth terminal region TL_4, multiple fourth pad terminals PAD_TL_D can be formed by a fourth pattern corresponding to the second pattern described above. In this case, the fourth pattern may have the same or similar shape as the second pattern.

[0089] In other words, according to this exemplary embodiment, the second pad unit PAD_2 of the printed circuit board (PCB) 300 can be formed in a shape corresponding to the first pad unit PAD_1 of the substrate SUB. That is, the plurality of pad terminals arranged in the second pad unit PAD_2 can be configured with the same or similar pattern as the pad terminals of the first pad unit PAD_1. The structures of the third terminal region TL_3 and the fourth terminal region TL_4 will be described in further detail below.

[0090] Next, we will refer to Figure 3 and Figure 4 The display panel 100 formed in the display area DA is described.

[0091] Figure 3 It is shown Figure 1 A schematic diagram of the display area DA, and Figure 4 It is along Figure 3 A sectional view taken from line IV-IV'.

[0092] According to this exemplary embodiment, the display panel 100 includes a first gate line GW1, a second gate line GW2, a data line DW, a display unit 140, and a pixel 150.

[0093] The gate driver 210, in response to a control signal supplied from an external control circuit (not shown), such as a timing controller, sequentially supplies scan signals to the first scan lines SC2 to SC2n or the second scan lines SC1 to SC2n-1, which are included in the first gate line GW1 and the second gate line GW2. Here, n is an integer of 1 or greater than 1.

[0094] Therefore, pixel 150 is selected by scanning the signal, thereby receiving data signals sequentially. In this case, Figure 3 The gate driver 210 shown can be formed in the driver chip 350 on the printed circuit board (PCB) 300, but for ease of description, it is not shown in the diagram. Figure 3 Only the gate driver 210 is shown in the image.

[0095] The first gate line GW1 is located on the substrate SUB with the first insulating layer GI1 inserted beneath it, and extends in a first direction. The first gate line GW1 includes a second scan line SC2n-1 and a light emission control line En.

[0096] The second scan line SC2n-1 is connected to the gate driver 210 and is supplied with a scan signal from the gate driver 210. The light emission control line En is connected to the light emission control driver 220 and is supplied with a light emission control signal from the light emission control driver 220. In this case, Figure 3 The light emission control driver 220 shown may be formed in the driver chip 350 on the printed circuit board (PCB) 300, similar to the gate driver 210, but for ease of description, Figure 3 Only the light emission control driver 220 is shown in the image.

[0097] The second gate line GW2 is located on the first gate line GW1 via the second insulating layer GI2 and extends in a first direction, wherein the second insulating layer GI2 is interposed between the first gate line GW1 and the second gate line GW2. The second gate line GW2 includes a first scan line SC2n and an initialization power line Vinit.

[0098] The first gate line GW1 and the second gate line GW2 do not overlap, but are placed in an alternating order.

[0099] The first scan line SC2n is connected to the gate driver 210 and is supplied with a scan signal from the gate driver 210. The initialization power line Vinit is connected to the gate driver 210 and receives initialization power from the gate driver 210.

[0100] In an exemplary embodiment, the initialization power line Vinit receives initialization power from the gate driver 210; however, the initialization power line Vinit may be connected to another configuration to receive initialization power from another configuration.

[0101] The light emission control driver 220, in response to a control signal supplied from an external component such as a timing controller, sequentially supplies light emission control signals to light emission control lines E1 to En. Therefore, the emission of pixel 150 is controlled by the light emission control signals.

[0102] In other words, the light emission control signal controls the light emission time of pixel 150. However, depending on the configuration of pixel 150, the light emission control driver 220 can be omitted.

[0103] The data driver 230 supplies a data signal to the data line DAm in the data line DW in response to a control signal supplied from an external component such as a timing controller. Whenever a scan signal is supplied to a specific scan line in the first scan line SC2n and the second scan line SC2n-1, the data signal supplied to the data line DAm is supplied to the pixel 150 selected by the scan signal. Therefore, the pixel 150 is charged with a voltage corresponding to the data signal and emits brightness corresponding to that voltage. Here, Figure 3 The data driver 230 shown can be formed in the driver chip 350 on the printed circuit board (PCB) 300, but for ease of description, Figure 3 Only data drive 230 is shown in the image.

[0104] The data line DW is located on the second gate line GW2 via a third insulating layer ILD and extends in a second direction intersecting the first direction, wherein the third insulating layer ILD is interposed between the second gate line GW2 and the data line DW. The data line DW includes data lines DA1 to DAM and a drive power line ELVDDL. Each data line DAM is connected to and receives data signals from a data driver 230. The drive power line ELVDDL is connected to an external first power supply ELVDD, which will be described later, and receives drive power from the first power supply ELVDD.

[0105] In this case, the drive power line ELVDDL and the data line DAm can be formed from the same layer on the third insulating layer ILD or formed on the same layer on the third insulating layer ILD. However, the invention is not limited thereto, and the drive power line ELVDDL and the data line DAm can be formed from different layers or formed on different layers.

[0106] For example, the drive power line ELVDDL can be formed from the same layer as the first gate line GW1, and the data line DAm can be formed from the same layer as the second gate line GW2. Conversely, the drive power line ELVDDL can be formed from the same layer as the second gate line GW2, and the data line DAm can be formed from the same layer as the first gate line GW1.

[0107] The display unit 140 includes a plurality of pixels 150 located at the intersection of the first gate line GW1, the second gate line GW2, and the data line DW. Here, each pixel 150 includes: an organic light-emitting element that emits light having a brightness corresponding to the drive current corresponding to the data signal, and a pixel circuit that controls the drive current flowing to the organic light-emitting element.

[0108] The pixel circuit is connected to the first gate line GW1, the second gate line GW2, and the data line DW, respectively, and the organic light-emitting element is connected to the pixel circuit. Pixel 150 is described as an organic light-emitting element; however, the pixel 150 applied to the display device of this exemplary embodiment is not limited thereto, and may be, for example, a liquid crystal display element or an electrophoretic display element.

[0109] The organic light-emitting element of the display unit 140 is connected to the external first power supply ELVDD via a pixel circuit inserted between the organic light-emitting element and the external first power supply ELVDD, and is also connected to the second power supply ELVSS. The first power supply ELVDD and the second power supply ELVSS supply driving power and common power to the pixels 150 of the display unit 140, respectively, and the pixels 150 emit light with a brightness corresponding to the driving current from the first power supply ELVDD and the second power supply ELVSS.

[0110] As described above, in the display device according to the exemplary embodiment, the first gate line GW1 and the second gate line GW2 span the pixel 150 in a first direction and do not overlap each other. They are also not located on the same layer; instead, the first gate line GW1 and the second gate line GW2 are located on different layers via the second insulating layer GI2, and therefore, the distance W between adjacent gate lines can be reduced, thereby forming more pixels 150 in the same area. That is, a high-resolution display device can be formed.

[0111] Next, we will refer to Figure 5 Describe the structure of the first pad terminal PAD_TL_A set in the first terminal area TL_1.

[0112] Figure 5 yes Figure 1 An enlarged view of the first terminal region TL_1.

[0113] Reference Figure 5Multiple first pad terminals PAD_TL_A can be disposed in a first terminal area TL_1. In this case, the first terminal area TL_1 can be connected to the data line DW of the display area DA via a first connection wiring CL_A. Within the first terminal area TL_1, the multiple first pad terminals PAD_TL_A can be configured to be spaced apart at predetermined intervals in a first direction.

[0114] The multiple first pad terminals PAD_TL_A may include first row of sub-pad terminals ROW_PAD_A, second row of pad terminals ROW_PAD_B, and first terminal connection line TL_CN_A, respectively.

[0115] In this exemplary embodiment, the first row of sub-pad terminals ROW_PAD_A may be configured to be spaced apart from each other in one direction. In this case, the first row of sub-pad terminals ROW_PAD_A may form a first tilt angle θ1 with respect to the first direction. That is, the first row of pad terminals ROW_PAD_A may be arranged along a line tilted relative to the first direction at the first tilt angle θ1. The first tilt angle θ1 may be in the range of 0 degrees to 90 degrees (excluding 0 degrees and 90 degrees).

[0116] On the other hand, the first row of sub-pad terminals ROW_PAD_A located in the first terminal region TL_1 can be configured to be tilted in the same direction. That is, in the first terminal region TL_1, the first row of sub-pad terminals ROW_PAD_A can be tilted at the same angle relative to the X-axis. For example, as Figure 1 As shown, the first row of sub-pad terminals ROW_PAD_A can be tilted at approximately 1 o'clock.

[0117] However, the implementation methods are not limited to this, and as follows: Figure 8 As shown, a portion of the first row of sub-pad terminals ROW_PAD_A located in the first terminal region TL_1 can be configured to be tilted at approximately 11 o'clock. In this case, the remaining first row of sub-pad terminals ROW_PAD_A can be configured to be tilted at approximately 1 o'clock.

[0118] On the other hand, the spacing between adjacent first-row sub-pad terminals ROW_PAD_A can be constant. For example, the spacing between first-row sub-pad terminals ROW_PAD_A_1 and ROW_PAD_A_2, the spacing between first-row sub-pad terminals ROW_PAD_A_2 and ROW_PAD_A_3, and the spacing between first-row sub-pad terminals ROW_PAD_A_3 and ROW_PAD_A_4 can be the same. The first-row sub-pad terminals ROW_PAD_A can be formed into an approximately quadrilateral shape.

[0119] The second row of sub-pad terminals ROW_PAD_B can be configured to be spaced apart from the first row of sub-pad terminals ROW_PAD_A in a second direction. Similar to the first row of sub-pad terminals ROW_PAD_A, the second row of sub-pad terminals ROW_PAD_B can be configured to be spaced apart from each other in one direction.

[0120] In this configuration, the second row of sub-pad terminals ROW_PAD_B can form a second tilt angle θ2 with the first direction. That is, the second row of sub-pad terminals ROW_PAD_B can be arranged along a line tilted relative to the first direction at the second tilt angle θ2. The second tilt angle θ2 can be in the range of 0 degrees to 90 degrees (excluding 0 degrees and 90 degrees). On the other hand, similar to the first row of sub-pad terminals ROW_PAD_A, the second row of sub-pad terminals ROW_PAD_B located in the first terminal region TL_1 can be configured to tilt in the same direction. That is, within the first terminal region TL_1, the second row of sub-pad terminals ROW_PAD_B can be configured to tilt at the same angle relative to the X-axis. For example, as... Figure 1 As shown, the second row of sub-pad terminals ROW_PAD_B can be set to tilt at approximately 1 o'clock.

[0121] However, the implementation methods are not limited to this, and as follows: Figure 8 As shown, a portion of the second row of sub-pad terminals ROW_PAD_B located in the first terminal region TL_1 can be tilted at approximately 11 o'clock. In this case, the remaining second row of sub-pad terminals ROW_PAD_B can be positioned at approximately 1 o'clock.

[0122] In this exemplary embodiment, the first tilt angle θ1 and the second tilt angle θ2 may be equal. Therefore, the first row of sub-pad terminals ROW_PAD_A and the second row of sub-pad terminals ROW_PAD_B may be configured to tilt at the same angle relative to the first direction. However, the invention is not limited thereto, and the first tilt angle θ1 and the second tilt angle θ2 may be different from each other. Therefore, the first row of sub-pad terminals ROW_PAD_A and the second row of sub-pad terminals ROW_PAD_B may be arranged to tilt at different angles relative to the first direction.

[0123] On the other hand, refer to Figure 1 and Figure 5 The multiple first pad terminals PAD_TL_A located in the first terminal area TL_1 can be configured to tilt in the same direction. That is, the first row of sub-pad terminals ROW_PAD_A and the second row of pad terminals ROW_PAD_B that make up the multiple first pad terminals PAD_TL_A can all be configured to tilt at the same angle relative to the X-axis.

[0124] However, the implementation methods are not limited to this, and as follows: Figure 8 As shown, the plurality of first pad terminals PAD_TL_A disposed in the first terminal region TL_1 can be configured to be symmetrical to each other with respect to the central region of the first terminal region TL_1. For example, the plurality of first pad terminals PAD_TL_A on the left side of the central region of the first terminal region TL_1 can be tilted at approximately 1 o'clock, and the plurality of first pad terminals PAD_TL_A on the right side of the central region of the first terminal region TL_1 can be tilted at approximately 11 o'clock.

[0125] On the other hand, the spacing between adjacent second-row sub-pad terminals ROW_PAD_B can be constant. For example, the spacing between second-row sub-pad terminals ROW_PAD_B_1 and ROW_PAD_B_2, the spacing between second-row sub-pad terminals ROW_PAD_B_2 and ROW_PAD_B_3, and the spacing between second-row sub-pad terminals ROW_PAD_B_3 and ROW_PAD_B_4 can be equal.

[0126] The second row of sub-pad terminals ROW_PAD_B can have a substantially quadrilateral shape.

[0127] In this exemplary embodiment, the quadrilateral forming each shape of the first row of sub-pad terminals ROW_PAD_A and the second row of sub-pad terminals ROW_PAD_B may include a first side L1 parallel to a first direction (X-axis) and a second side L2 parallel to a second direction (Y-axis). Here, the first side L1 and the second side L2 may be adjacent to each other.

[0128] In this case, the second side L2 can be longer than the first side L1 (L1 < L2). That is, the quadrilateral can have a rectangular shape that extends in the second direction (Y-axis).

[0129] According to this exemplary embodiment, if the first row of sub-pad terminals ROW_PAD_A and the second row of sub-pad terminals ROW_PAD_B are formed as rectangles extending in the second direction, the spacing between the first row of sub-pad terminals ROW_PAD_A or between the second row of sub-pad terminals ROW_PAD_B in the first direction (X-axis) can be reduced.

[0130] Therefore, the number of first row sub-pad terminals ROW_PAD_A and second row sub-pad terminals ROW_PAD_B set in the first terminal area TL_1 can be increased.

[0131] Multiple first-row sub-pad terminals ROW_PAD_A and multiple second-row sub-pad terminals ROW_PAD_B can be connected via multiple first-terminal connection lines TL_CN_A. Specifically, each of the first-terminal connection lines TL_CN_A can connect to one of the multiple first-row sub-pad terminals ROW_PAD_A and one of the multiple second-row sub-pad terminals ROW_PAD_B.

[0132] For example, the first row of sub-pad terminals ROW_PAD_A_1 and the second row of sub-pad terminals ROW_PAD_B_1 can be connected to each other via the first terminal connection line TL_CN_A_1, and the first row of sub-pad terminals ROW_PAD_A_2 and the second row of sub-pad terminals ROW_PAD_B_2 can be connected to each other via the first terminal connection line TL_CN_A_2. Furthermore, the first row of sub-pad terminals ROW_PAD_A_3 and the second row of sub-pad terminals ROW_PAD_B_3 can be connected to each other via the first terminal connection line TL_CN_A_3, and the first row of sub-pad terminals ROW_PAD_A_4 and the second row of sub-pad terminals ROW_PAD_B_4 can be connected to each other via the first terminal connection line TL_CN_A_4.

[0133] According to this exemplary embodiment, the plurality of first terminal connection lines TL_CN_A may have a shape that is bent at least once. For example, as Figure 5 As shown, the first terminal connection line TL_CN_A_1 extends along a second direction from the second row sub-pad terminal ROW_PAD_B_1 to the first row sub-pad terminal ROW_PAD_A_1. In this case, the first terminal connection line TL_CN_A_1 can be configured to bend in a first direction and then bend again in the second direction. That is, the first terminal connection line TL_CN_A_1 can be configured to bend twice.

[0134] On the other hand, multiple first row sub-pad terminals ROW_PAD_A can be connected to the first connection wiring CL_A. For example, first row sub-pad terminal ROW_PAD_A_1 can be connected to the first connection wiring CL_A_1, and first row sub-pad terminal ROW_PAD_A_2 can be connected to the first connection wiring CL_A_2. First row sub-pad terminal ROW_PAD_A_3 can be connected to the first connection wiring CL_A_3, and first row sub-pad terminal ROW_PAD_A_4 can be connected to the first connection wiring CL_A_4.

[0135] At least one first dummy pad terminal DM_TL_A may be disposed between a pair of adjacent first row sub-pad terminals ROW_PAD_A. For example, a first dummy pad terminal DM_TL_A_1 may be disposed between first row sub-pad terminals ROW_PAD_A_1 and ROW_PAD_A_2, and a first dummy pad terminal DM_TL_A_2 may be disposed between first row sub-pad terminals ROW_PAD_A_2 and ROW_PAD_A_3. A first dummy pad terminal DM_TL_A_3 may be disposed between first row sub-pad terminals ROW_PAD_A_3 and ROW_PAD_A_4, and a first dummy pad terminal DM_TL_A_4 may be disposed close to first row sub-pad terminals ROW_PAD_A_4.

[0136] Figure 5 A first dummy pad terminal DM_TL_A is shown positioned between a pair of adjacent first row sub-pad terminals ROW_PAD_A. However, the invention is not limited thereto, and two or more first dummy pad terminals DM_TL_A may be positioned between adjacent first row sub-pad terminals ROW_PAD_A.

[0137] In this configuration, the first row of sub-pad terminals ROW_PAD_A and the first dummy pad terminal DM_TL_A can be arranged parallel to each other. That is, the first row of sub-pad terminals ROW_PAD_A and the first dummy pad terminal DM_TL_A can all be arranged along the same line and can be arranged to be tilted relative to the first direction at a first tilt angle θ1.

[0138] Since at least one first dummy pad terminal DM_TL_A can be set between a pair of adjacent first row sub-pad terminals ROW_PAD_A, the distance between adjacent first row sub-pad terminals ROW_PAD_A is increased, which prevents capacitive coupling, i.e., capacitive coupling generated between adjacent first row sub-pad terminals ROW_PAD_A.

[0139] Furthermore, at least one second dummy pad terminal DM_TL_B may be disposed between a pair of adjacent second row sub-pad terminals ROW_PAD_B. For example, a second dummy pad terminal DM_TL_B_1 may be disposed between second row sub-pad terminals ROW_PAD_B_1 and ROW_PAD_B_2, and a second dummy pad terminal DM_TL_B_2 may be disposed between second row sub-pad terminals ROW_PAD_B_2 and ROW_PAD_B_3. A second dummy pad terminal DM_TL_B_3 may be disposed between second row sub-pad terminals ROW_PAD_B_3 and ROW_PAD_B_4, and a second dummy pad terminal DM_TL_B_4 may be disposed adjacent to second row sub-pad terminal ROW_PAD_B_4.

[0140] Figure 5 A second dummy pad terminal DM_TL_B is shown positioned between a pair of adjacent second row sub-pad terminals ROW_PAD_B. However, the invention is not limited thereto, and two or more second dummy pad terminals DM_TL_B may be positioned between adjacent second row sub-pad terminals ROW_PAD_B.

[0141] The second row of sub-pad terminals ROW_PAD_B and the second dummy pad terminal DM_TL_B can be configured to be parallel to each other. That is, the second row of sub-pad terminals ROW_PAD_B and the second dummy pad terminal DM_TL_B can all be arranged along a line inclined at a second tilt angle θ2 relative to the first direction.

[0142] In this exemplary embodiment, since the first row of sub-pad terminals ROW_PAD_A and the second row of sub-pad terminals ROW_PAD_B are configured to be tilted at a predetermined angle relative to the first direction, a plurality of pad terminals can be arranged in a predetermined area.

[0143] Next, we will refer to Figure 6 Describe the structure of the second pad terminal PAD_TL_B located in the second terminal region TL_2.

[0144] Figure 6 yes Figure 1 An enlarged view of the second terminal region TL_2.

[0145] Reference Figure 6Multiple second pad terminals PAD_TL_B can be disposed in the second terminal area TL_2. In this case, the second terminal area TL_2 can be connected to power lines arranged in the display area DA via second connection wiring CL_B, such as drive power lines ELVDDL, common power lines, initialization power lines, scan lines, etc. Within the second terminal area TL_2, the multiple second pad terminals PAD_TL_B can be configured to be spaced apart from each other at predetermined intervals in a first direction.

[0146] Multiple second pad terminals PAD_TL_B may each include a pair of second sub-pad terminals SUB_PAD_B and a second terminal connection line TL_CN_B.

[0147] A pair of second sub-pad terminals SUB_PAD_B can be configured to be spaced apart from each other in one direction. In this exemplary embodiment, a pair of second sub-pad terminals SUB_PAD_B_1 and second sub-pad terminals SUB_PAD_B_2 can be configured to be spaced apart from each other in a second direction. In this case, the pair of second sub-pad terminals SUB_PAD_B_1 and second sub-pad terminals SUB_PAD_B_2 can be arranged on a line along the second direction.

[0148] The second sub-pad terminal SUB_PAD_B can be formed into an approximately quadrilateral shape. In this exemplary embodiment, the second sub-pad terminal SUB_PAD_B can have a rectangular shape that extends in a second direction. In this case, the second sub-pad terminal SUB_PAD_B_1 and the second sub-pad terminal SUB_PAD_B_2 each form a rectangular shape with adjacent long and short sides, and the length of the long side is greater than twice or more the length of the short side.

[0149] A pair of second sub-pad terminals SUB_PAD_B can be connected via a second terminal connection line TL_CN_B. That is, the second terminal connection line TL_CN_B can be located between the second sub-pad terminals SUB_PAD_B_1 and SUB_PAD_B_2, allowing electrical connection between the second sub-pad terminals SUB_PAD_B_1 and their corresponding counterparts SUB_PAD_B_2.

[0150] According to this exemplary embodiment, the second terminal connection line TL_CN_B can be configured as a straight line. Unlike the first terminal connection line TL_CN_A described above, the second terminal connection line TL_CN_B does not have a curved shape, but can instead be simply configured as a straight line. Therefore, a pair of second sub-pad terminals SUB_PAD_B and the corresponding second terminal connection line TL_CN_B can be arranged on a single line.

[0151] The second sub-pad terminal SUB_PAD_B_1 can be connected to the second connection wiring CL_B. Therefore, the second sub-pad terminal SUB_PAD_B_1 can be connected to the power lines disposed in the display area DA via the second connection wiring CL_B. For example, the second sub-pad terminal SUB_PAD_B_1 can be electrically connected to the drive power lines or the common power lines, etc., via the second connection wiring CL_B.

[0152] In this exemplary embodiment, a plurality of second pad terminals PAD_TL_B are connected to a drive power line or a common power line, thereby preventing a decrease in the brightness of the image displayed in the display device. As described above, the second pad terminals PAD_TL_B may include a straight second terminal connection line TL_CN_B. That is, the second terminal connection line TL_CN_B is configured as a straight line without bending, so that the resistance of the wiring does not increase due to its curved shape. Therefore, by preventing an increase in the resistance of the wiring, a decrease in brightness in the display device can be prevented.

[0153] Next, we will refer to Figure 7 describe Figure 6 An exemplary variant of the second terminal region TL_2 shown.

[0154] Reference Figure 7 Multiple second pad terminals PAD_TL_B' can be set in the second terminal area TL_2. Each of the multiple second pad terminals PAD_TL_B' can include a pair of second sub-pad terminals SUB_PAD_B' and a second terminal connection line TL_CN_B'.

[0155] Each pair of second sub-pad terminals SUB_PAD_B' can be set to be spaced apart from each other in one direction. However, with Figure 6 Unlike other terminals, the second sub-pad terminals SUB_PAD_B_1' and SUB_PAD_B_2' can be arranged to be tilted relative to the first direction at a third tilt angle θ3. The third tilt angle θ3 can be in the range of 0 degrees to 90 degrees (excluding 0 degrees and 90 degrees).

[0156] On the other hand, a pair of second sub-pad terminals SUB_PAD_B' can be connected via a second terminal connection line TL_CN_B'. That is, the second terminal connection line TL_CN_B' can be located between the second sub-pad terminal SUB_PAD_B_1' and the second sub-pad terminal SUB_PAD_B_2'. Furthermore, the second terminal connection line TL_CN_B' can electrically connect the second sub-pad terminal SUB_PAD_B_1' and the second sub-pad terminal SUB_PAD_B_2'.

[0157] In this exemplary variant, the second terminal connection line TL_CN_B' may be configured with a straight line shape. Therefore, a pair of second sub-pad terminals SUB_PAD_B' and the second terminal connection line TL_CN_B' may be arranged along a single line. In this case, the pair of second sub-pad terminals SUB_PAD_B' and the second terminal connection line TL_CN_B' may be arranged along a line inclined at a third tilt angle θ3 relative to the first direction.

[0158] Next, we will refer to Figures 9 to 14 A printed circuit board (PCB) 300 is described in accordance with an exemplary embodiment and incorporated into a display device.

[0159] Figure 9 It is combined to Figure 1 A schematic top view of the printed circuit board (PCB) 300 of the display device. Figure 10 yes Figure 9 An enlarged view of the third terminal region TL_3, and Figure 11 It is along Figure 10 The sectional view taken by line XI-XI'. Figure 12 yes Figure 9 An enlarged view of the fourth terminal region TL_4. Figure 13 It is along Figure 12 The sectional view taken by line XIII-XIII', and Figure 14 yes Figure 12 A view of an exemplary variant of the fourth terminal region TL_4.

[0160] Reference Figure 9 The printed circuit board (PCB) 300 may include a flexible substrate film 310, a second pad unit PAD_2, and a driver chip 350.

[0161] The second pad unit PAD_2 may be disposed at one end of the substrate film 310. According to this exemplary embodiment, the second pad unit PAD_2 may be manufactured to have a shape corresponding to the shape of the first pad unit PAD_1 of the substrate SUB. Since the second pad unit PAD_2 of the printed circuit board (PCB) 300 and the first pad unit PAD_1 of the substrate SUB can be formed to correspond to each other in shape, the first pad unit PAD_1 and the second pad unit PAD_2 can be more easily combined.

[0162] The second pad unit PAD_2 may include a third terminal region TL_3 and a fourth terminal region TL_4. The third terminal region TL_3 and the fourth terminal region TL_4 represent regions located on the base film 310. The third terminal region TL_3 and the fourth terminal region TL_4 may be arranged parallel to each other on the base film 310 along a first direction.

[0163] According to this exemplary embodiment, the fourth terminal region TL_4 may be disposed on both sides of the third terminal region TL_3. However, the present invention is not limited thereto, and the fourth terminal region TL_4 may alternatively be disposed between a pair of third terminal regions TL_3.

[0164] The arrangement of the third terminal region TL_3 and the fourth terminal region TL_4 is determined based on the arrangement of the first terminal region TL_1 and the second terminal region TL_2 disposed on the substrate SUB. For example, if the second terminal region TL_2 is disposed on both sides of the first terminal region TL_1, then the fourth terminal region TL_4 may be disposed on both sides of the third terminal region TL_3. Furthermore, if the second terminal region TL_2 is disposed between a pair of first terminal regions TL_1, then the fourth terminal region TL_4 may be disposed between a pair of third terminal regions TL_3.

[0165] Reference Figure 10 and Figure 11 The third terminal region TL_3 is the region corresponding to the first terminal region TL_1 of the substrate SUB, and multiple third pad terminals PAD_TL_C can be set in the third terminal region TL_3.

[0166] Multiple third pad terminals PAD_TL_C can be configured with the same pattern as the first pad terminal PAD_TL_A configured in the first terminal region TL_1. That is, multiple third pad terminals PAD_TL_C in the third terminal region TL_3 can be formed with a third pattern corresponding to the first pattern.

[0167] Multiple third pad terminals PAD_TL_C may include third column sub-pad terminals ROW_PAD_C and fourth column pad terminals ROW_PAD_D.

[0168] In this exemplary embodiment, the third row of sub-pad terminals ROW_PAD_C may be configured to be spaced apart from each other along one direction. In this case, the third row of sub-pad terminals ROW_PAD_C may form a first tilt angle θ1 relative to the first direction. The third row of sub-pad terminals ROW_PAD_C may be arranged to be tilted relative to the first direction at the first tilt angle θ1. That is, the third row of sub-pad terminals ROW_PAD_C may be arranged to be tilted at the same angle as the first row of sub-pad terminals ROW_PAD_A of the substrate SUB. In this case, the first tilt angle θ1 may be in the range of 0 degrees to 90 degrees (excluding 0 degrees and 90 degrees).

[0169] Furthermore, the spacing between adjacent third-row sub-pad terminals ROW_PAD_C can be constant. For example, the spacing between third-row sub-pad terminals ROW_PAD_C_1 and ROW_PAD_C_2, the spacing between third-row sub-pad terminals ROW_PAD_C_2 and ROW_PAD_C_3, and the spacing between third-row sub-pad terminals ROW_PAD_C_3 and ROW_PAD_C_4 can be equal. In this case, adjacent third-row sub-pad terminals ROW_PAD_C can be arranged at a spacing equal to the spacing between the first-row sub-pad terminals ROW_PAD_A described above.

[0170] The third row of sub-pad terminals ROW_PAD_C can be formed into an approximately quadrilateral shape.

[0171] The fourth row of sub-pad terminals ROW_PAD_D can be configured to be spaced apart from the third row of sub-pad terminals ROW_PAD_C in a second direction. Similar to the third row of sub-pad terminals ROW_PAD_C, the fourth row of sub-pad terminals ROW_PAD_D can be configured to be spaced apart from each other in one direction.

[0172] In this configuration, the fourth row of sub-pad terminals ROW_PAD_D can be tilted at a second angle θ2 relative to the first direction. That is, the fourth row of sub-pad terminals ROW_PAD_D can be arranged along a line tilted at the second angle θ2 relative to the first direction. In other words, the fourth row of sub-pad terminals ROW_PAD_D can be arranged to tilt at the same angle as the second row of sub-pad terminals ROW_PAD_B of the substrate SUB. In this configuration, the second tilt angle θ2 can be in the range of 0 degrees to 90 degrees (excluding 0 degrees and 90 degrees).

[0173] In this exemplary embodiment, similar to the first row of sub-pad terminals ROW_PAD_A and the second row of sub-pad terminals ROW_PAD_B of the substrate SUB, the first tilt angle θ1 and the second tilt angle θ2 can be equal to each other. Therefore, the third row of sub-pad terminals ROW_PAD_C and the fourth row of sub-pad terminals ROW_PAD_D can be arranged to be tilted at the same angle relative to the first direction.

[0174] However, the invention is not limited thereto, and the first tilt angle θ1 and the second tilt angle θ2 may be different from each other. Therefore, the third row of sub-pad terminals ROW_PAD_C and the fourth row of sub-pad terminals ROW_PAD_D may be arranged to tilt at different angles relative to the first direction.

[0175] On the other hand, the spacing between adjacent fourth-row sub-pad terminals ROW_PAD_D can be equal to each other. For example, the spacing between fourth-row sub-pad terminals ROW_PAD_D_1 and ROW_PAD_D_2, the spacing between fourth-row sub-pad terminals ROW_PAD_D_2 and ROW_PAD_D_3, and the spacing between fourth-row sub-pad terminals ROW_PAD_D_3 and ROW_PAD_D_4 can be equal.

[0176] The fourth row of sub-pad terminals ROW_PAD_D can be formed into a shape with approximately quadrilateral shape.

[0177] On the other hand, in the printed circuit board (PCB) 300, the first terminal wiring P_L_A_1 and the second terminal wiring P_L_B_1 may be located on opposite sides of the substrate film 310. The first terminal wiring P_L_A_1 may be located on or above the substrate film 310, and the second terminal wiring P_L_B_1 may be located below the substrate film 310. In this case, the first terminal wiring P_L_A_1 and the second terminal wiring P_L_B_1 may be electrically connected to the driver chip 350, respectively.

[0178] The first protective layer SR1 can be disposed on the first terminal wiring P_L_A_1, and the second protective layer SR2 can be disposed on the second terminal wiring P_L_B_1. In this case, the first protective layer SR1 and the second protective layer SR2 can each be a solder mask.

[0179] The third row sub-pad terminals ROW_PAD_C_1 and the fourth row sub-pad terminals ROW_PAD_D_1 can be formed from the same layer as the second terminal wiring P_L_B_1. For the third row sub-pad terminals ROW_PAD_C_1 and the fourth row sub-pad terminals ROW_PAD_D_1, a portion of the second protective layer SR2 is removed, exposing a portion of the second terminal wiring P_L_B_1. In this case, the third row sub-pad terminals ROW_PAD_C_1 and the fourth row sub-pad terminals ROW_PAD_D_1 are spaced apart from each other.

[0180] In this configuration, the third row sub-pad terminal ROW_PAD_C_1 can be electrically connected to the first terminal wiring P_L_A_1 via a first contact hole CT_1 formed in the substrate film 310. In a plan view, the first contact hole CT_1 may be configured to overlap with the third row sub-pad terminal ROW_PAD_C_1. In this case, the first contact hole CT_1 is filled with the same metal as the first terminal wiring P_L_A_1, but alternatively, it may be filled with the same metal as the third row sub-pad terminal ROW_PAD_C_1.

[0181] On the other hand, the fourth row of sub-pad terminals ROW_PAD_D_1 may be formed of the same metal layer as the second terminal wiring P_L_B_1. In this exemplary embodiment, the fourth row of sub-pad terminals ROW_PAD_D_1 may correspond to a portion of the second terminal wiring P_L_B_1 that is exposed.

[0182] Reference Figure 12 and Figure 13 The fourth terminal region TL_4 is the region corresponding to the second terminal region TL_2 of the substrate SUB, and multiple fourth pad terminals PAD_TL_D can be set in the fourth terminal region TL_4.

[0183] Multiple fourth pad terminals PAD_TL_D can be configured with the same pattern as the second pad terminal PAD_TL_B configured in the second terminal region TL_2. That is, multiple fourth pad terminals PAD_TL_D in the fourth terminal region TL_4 can be formed into a fourth pattern corresponding to the second pattern described above.

[0184] Multiple fourth pad terminals PAD_TL_D can each include a pair of fourth sub-pad terminals SUB_PAD_D.

[0185] Each pair of fourth sub-pad terminals SUB_PAD_D can be spaced apart from each other in one direction. In this exemplary embodiment, a pair of fourth sub-pad terminals SUB_PAD_D_1 and SUB_PAD_D_2 can be spaced apart from each other along a second direction. In this case, the pair of fourth sub-pad terminals SUB_PAD_D_1 and SUB_PAD_D_2 can be arranged on a line along the second direction.

[0186] The fourth sub-pad terminal SUB_PAD_D can be manufactured in an approximately quadrilateral shape. In this exemplary embodiment, the fourth sub-pad terminal SUB_PAD_D can have a rectangular shape that extends in a second direction. In this case, the fourth sub-pad terminals SUB_PAD_D_1 and SUB_PAD_D_2 have rectangular shapes including adjacent long and short sides, and the length of the long side is greater than twice the length of the short side.

[0187] The fourth sub-pad terminals SUB_PAD_D_1 and SUB_PAD_D_2 can be formed from the same layer as the second terminal wiring P_L_B_2. For the fourth sub-pad terminals SUB_PAD_D_1 and SUB_PAD_D_2, a portion of the second protective layer SR2 is removed, exposing a portion of the second terminal wiring P_L_B_1. In this case, the fourth sub-pad terminals SUB_PAD_D_1 and SUB_PAD_D_2 are spaced apart from each other.

[0188] On the other hand, similar to the third terminal region TL_3, in the printed circuit board (PCB) 300, the first terminal wiring P_L_A_2 and the second terminal wiring P_L_B_2 are located on opposite sides of the substrate film 310. The first terminal wiring P_L_A_2 may be located on the substrate film 310, and the second terminal wiring P_L_B_2 may be located below the substrate film 310. In this case, the first terminal wiring P_L_A_2 and the second terminal wiring P_L_B_2 may be electrically connected to the driver chip 350, respectively.

[0189] In this configuration, the fourth sub-pad terminal SUB_PAD_D_1 can be electrically connected to the first terminal wiring P_L_A_2 via a second contact hole CT_2 formed in the base film 310. In the plan view, the fourth sub-pad terminal SUB_PAD_D_1 and the second contact hole CT_2 are arranged so as not to overlap. The second terminal wiring P_L_B_2 can be formed to extend from the fourth sub-pad terminal SUB_PAD_D_1 in a second direction. Furthermore, the second contact hole CT_2 can overlap with the second terminal wiring P_L_B_2. In this configuration, the same metal as the first terminal wiring P_L_A_2 can fill the second contact hole CT_2, or the metal of the fourth sub-pad terminal SUB_PAD_D_1 can be filled therein.

[0190] On the other hand, the fourth sub-pad terminal SUB_PAD_D_2 may be formed of the same metal layer as the second terminal wiring P_L_B_2. In this exemplary embodiment, the fourth sub-pad terminal SUB_PAD_D_2 may correspond to a portion of the second terminal wiring P_L_B_2 that is exposed.

[0191] Next, we will refer to Figure 14 describe Figure 12 An exemplary variant of the fourth terminal region TL_4 shown.

[0192] Reference Figure 14Multiple fourth pad terminals PAD_TL_D' may be arranged in the fourth terminal area TL_4. Each of the multiple fourth pad terminals PAD_TL_D' may include a pair of fourth sub-pad terminals SUB_PAD_D'.

[0193] A pair of fourth sub-pad terminals SUB_PAD_D' can be set to be spaced apart from each other in one direction. However, with Figure 12 Unlike other terminals, a pair of fourth sub-pad terminals SUB_PAD_D_1' and SUB_PAD_D_2' can be arranged at a third tilt angle θ3 relative to the first direction. Figure 14 The third tilt angle θ3 formed by the fourth sub-pad terminal SUB_PAD_D_1' and the fourth sub-pad terminal SUB_PAD_D_2' can be compared with... Figure 7 The angle formed by the second sub-pad terminal SUB_PAD_B' formed on the substrate SUB is the same.

[0194] Next, we will refer to Figure 15 and Figure 16 An exemplary variant of the printed circuit board (PCB) 300 is described.

[0195] Figure 15 yes Figure 9 A view of a first exemplary variant of the printed circuit board (PCB) 300, and Figure 16 yes Figure 9 A view of a second exemplary variant of the printed circuit board (PCB) 300.

[0196] exist Figure 9 In the middle, the multiple third pad terminals PAD_TL_C of the third terminal area TL_3 can be configured with... Figure 1 The first pad terminal PAD_TL_A in the first terminal area TL_1 has the same pattern. Within the third terminal area TL_3, multiple third pad terminals PAD_TL_C can be configured to tilt at the same angle. That is, multiple third pad terminals PAD_TL_C can be tilted at approximately the 1 o'clock position.

[0197] However, in Figure 15 In a first exemplary variant of the printed circuit board (PCB) 300, the plurality of third pad terminals PAD_TL_C of the third terminal region TL_3 may be configured with... Figure 8 The first pad terminal PAD_TL_A in the first terminal area TL_1 has the same pattern.

[0198] The plurality of third pad terminals PAD_TL_C in the third terminal region TL_3 can be configured to be symmetrical to each other with respect to the central region of the third terminal region TL_3. For example, the plurality of third pad terminals PAD_TL_C on the left side of the central region of the third terminal region TL_3 can be tilted in the approximately 1 o'clock direction, and the plurality of third pad terminals PAD_TL_C on the right side of the central region of the third terminal region TL_3 can be tilted in the approximately 11 o'clock direction.

[0199] Reference Figure 16 The multiple fourth pad terminals PAD_TL_D located in the fourth terminal region TL_4 can be set at different angles relative to the first direction (X-axis). For example, in the fourth terminal region TL_4 located to the right of the third terminal region TL_3, the angle of the fourth pad terminal PAD_TL_D relative to the X-axis can gradually decrease from left to right. Conversely, in the fourth terminal region TL_4 located to the right of the third terminal region TL_3, the angle of the fourth pad terminal PAD_TL_D relative to the X-axis can gradually increase from left to right.

[0200] Optionally, in the fourth terminal region TL_4 located to the left of the third terminal region TL_3, the angle of the fourth pad terminal PAD_TL_D relative to the X-axis can gradually decrease from right to left. Similarly, in the fourth terminal region TL_4 located to the left of the third terminal region TL_3, the angle of the fourth pad terminal PAD_TL_D relative to the X-axis can gradually increase from right to left.

[0201] Next, we will refer to Figure 17 and Figure 18 Describe the state in which the second terminal region TL_2 and the fourth terminal region TL_4 are coupled to each other.

[0202] Figure 17 This is a schematic view showing the combined state of the second terminal region TL_2 formed in the substrate SUB and the fourth terminal region TL_4 formed in the printed circuit board (PCB) 300. Figure 18 It is along Figure 17 A sectional view taken from line XVIII-XVIII'.

[0203] When the printed circuit board (PCB) 300 is bonded to the pad area PNL_PAD of the substrate SUB, the second sub-pad terminal SUB_PAD_B_1 and the second sub-pad terminal SUB_PAD_B_2 of the second terminal area TL_2, and the fourth sub-pad terminal SUB_PAD_D_1 and the fourth sub-pad terminal SUB_PAD_D_2 of the fourth terminal area TL_4 can be arranged to overlap each other.

[0204] Specifically, the fourth sub-pad terminal SUB_PAD_D_1 is configured to overlap with the second sub-pad terminal SUB_PAD_B_1, and the fourth sub-pad terminal SUB_PAD_D_2 is configured to overlap with the second sub-pad terminal SUB_PAD_B_2.

[0205] Next, a conductive adhesive film 500 may be disposed between the second terminal region TL_2 and the fourth terminal region TL_4. The conductive adhesive film 500 electrically connects the second sub-pad terminal SUB_PAD_B_1 and the second sub-pad terminal SUB_PAD_B_2 to the fourth sub-pad terminals SUB_PAD_D_1 and SUB_PAD_D_2. The second and second sub-pad terminals SUB_PAD_B_1 and SUB_PAD_B_2, as well as the fourth sub-pad terminals SUB_PAD_D_1 and SUB_PAD_D_2, may be electrically connected via a plurality of conductive balls CNB included in the conductive adhesive film 500.

[0206] Next, we will refer to Figure 19 and Figure 20 Describe the state in which the first terminal area TL_1 and the third terminal area TL_3 are coupled to each other.

[0207] Figure 19 This is a schematic view showing the combined state of a first terminal region TL_1 formed in the substrate SUB and a third terminal region TL_3 formed in the printed circuit board (PCB) 300. Figure 20 It is along Figure 19 A sectional view taken from line XX-XX'.

[0208] Third solder pad terminal PAD_TL_C (refer to) Figure 10 It can be set to be related to the first pad terminal PAD_TL_A (refer to...) Figure 5 Specifically, the third row of sub-pad terminals ROW_PAD_C can overlap with and be disposed on the first row of sub-pad terminals ROW_PAD_A, and the fourth row of sub-pad terminals ROW_PAD_D can overlap with and be disposed on the second row of sub-pad terminals ROW_PAD_B.

[0209] Furthermore, the conductive adhesive film 500 may be disposed between the first terminal region TL_1 and the third terminal region TL_3. The conductive adhesive film 500 can electrically connect the first row of sub-pad terminals ROW_PAD_A and the third row of sub-pad terminals ROW_PAD_C. The first row of sub-pad terminals ROW_PAD_A and the third row of sub-pad terminals ROW_PAD_C can be electrically connected to each other through a plurality of conductive balls CNB included in the conductive adhesive film 500.

[0210] In a display device according to an exemplary embodiment, a first terminal region TL_1 and a second terminal region TL_2 are formed in a first pad unit PAD_1, and in this case, a plurality of first pad terminals PAD_TL_A provided in the first terminal region TL_1 and a plurality of second pad terminals PAD_TL_B provided in the second terminal region TL_2 may have different patterns.

[0211] While the invention has been described in conjunction with what is now considered a practical exemplary embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but rather is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Therefore, various features of the above-described embodiments and other embodiments can be combined and matched in any way to produce further embodiments consistent with the invention.

[0212] Description of the label

[0213] SUB substrate

[0214] DA display area

[0215] PNL_PAD pad area

[0216] PAD_1 First Pad Unit

[0217] PAD_2 Second Pad Unit

[0218] TL_1 First Terminal Area

[0219] TL_2 Second Terminal Area

[0220] TL_3 Third Terminal Area

[0221] TL_4 fourth terminal area

[0222] PAD_TL_A First Pad Terminal

[0223] PAD_TL_B Second Pad Terminal

[0224] PAD_TL_C third pad terminal

[0225] PAD_TL_D fourth pad terminal

[0226] TL_CN_A First Terminal Connection Line

[0227] ROW_PAD_A First Row of Pad Terminals

[0228] ROW_PAD_B second row of solder pad terminals

[0229] DM_TL_A First Dummy Pad Terminal

[0230] DM_TL_B Second Dummy Pad Terminal

[0231] SUB_PAD_B second sub-pad terminal

[0232] TL_CN_B Second Terminal Connection Line

[0233] 300 Printed Circuit Board (PCB)

[0234] 310 Basement membrane

[0235] 350 driver chip

[0236] SR1 First protective layer

[0237] SR2 Second Protective Layer

[0238] CT_1 First Contact Hole

[0239] CT_2 Second Contact Hole

[0240] 500 conductive adhesive film

[0241] CNB conductive sphere

Claims

1. A display device, comprising: The substrate includes a plurality of first pad terminals and a plurality of second pad terminals; as well as A printed circuit board, comprising a base film, multiple third pad terminals, and multiple fourth pad terminals; Wherein, in the substrate: Each of the plurality of first pad terminals includes a first row of sub-pad terminals and a second row of pad terminals; and Each of the plurality of second pad terminals includes a pair of second sub-pad terminals, wherein, in the printed circuit board: Each of the plurality of third pad terminals includes a third row of sub-pad terminals and a fourth row of pad terminals; Each of the plurality of fourth pad terminals includes a pair of fourth sub-pad terminals; The first terminal wiring is connected to the third row of sub-pad terminals through a first contact hole formed in the substrate film; and The second terminal wiring is connected to one of the pair of fourth sub-pad terminals through a second contact hole formed in the substrate film. in: The first row of sub-pad terminals is electrically connected to the third row of sub-pad terminals. The second row of sub-pad terminals is electrically connected to the fourth row of sub-pad terminals. One of the second sub-pad terminals is electrically connected to one of the fourth sub-pad terminals, and The other pad terminal of the pair of second sub-pad terminals is electrically connected to the other pad terminal of the pair of fourth sub-pad terminals, and in: The first contact hole overlaps with the third row of sub-pad terminals in the plan view, and The second contact hole is configured to be separate from the pair of fourth sub-pad terminals in the plan view.

2. The display device according to claim 1, wherein, The substrate is divided into a display area and a peripheral area. The display area is configured to display an image, and The peripheral area includes a pad area, and the plurality of first pad terminals and the plurality of second pad terminals are disposed in the pad area.

3. The display device according to claim 2, wherein, The substrate further includes: Multiple data cables are arranged in the display area, and Multiple power lines are configured to provide voltage to the display area.

4. The display device according to claim 3, wherein, The plurality of first pad terminals are connected to the corresponding data lines among the plurality of data lines.

5. The display device according to claim 4, wherein, The plurality of second pad terminals are respectively connected to the plurality of power lines.

6. The display device according to claim 5, wherein, The plurality of power lines include at least one of a drive voltage line, a common power line, an initialization power line, and a gate line.

7. The display device according to claim 5, wherein, The plurality of second pad terminals are divided and disposed on both sides of a first region in which the plurality of first pad terminals are disposed.

8. The display device according to claim 7, wherein, The plurality of second pad terminals at the two sides are arranged symmetrically with respect to the first region.

9. The display device according to claim 2, wherein, The plurality of first pad terminals are divided and disposed on both sides of a second region in which the plurality of second pad terminals are disposed.

10. The display device according to claim 9, wherein, The plurality of first pad terminals on both sides are arranged symmetrically with respect to the second region.

11. The display device according to claim 1, wherein, The printed circuit board also includes a driver chip, which is positioned on a first surface of the substrate film that is different from the second surface on which the plurality of third pad terminals and the plurality of fourth pad terminals are disposed.

12. The display device according to claim 1, wherein, The basement membrane is flexible.

13. The display device according to claim 1, wherein, The plurality of first pad terminals and the plurality of second pad terminals are arranged in different shapes.

14. The display device according to claim 13, wherein, Multiple first row sub-pad terminals are arranged along a first line forming a first tilt angle with a first direction.

15. The display device according to claim 14, wherein, Multiple second-row sub-pad terminals are arranged along a second line forming a second tilt angle with the first direction.

16. The display device according to claim 13, wherein, The plurality of third pad terminals are arranged in a first shape corresponding to the plurality of first pad terminals, and The plurality of fourth pad terminals are arranged in a second shape corresponding to the plurality of second pad terminals.

17. The display device according to claim 16, wherein, A plurality of first-row sub-pad terminals and a plurality of third-row sub-pad terminals are arranged along a first line forming a first tilt angle with a first direction.

18. The display device according to claim 17, wherein, Multiple second-row sub-pad terminals and multiple fourth-row sub-pad terminals are arranged along a second line forming a second tilt angle with the first direction.

19. The display device according to claim 18, wherein, The pair of second sub-pad terminals and the pair of fourth sub-pad terminals are respectively arranged along a second direction perpendicular to the first direction.

20. The display device according to claim 1, wherein, At least one first dummy pad terminal is provided between a pair of adjacent first row sub-pad terminals, and At least one second dummy pad terminal is provided between a pair of adjacent second row sub-pad terminals.

21. The display device according to claim 20, wherein, The pair of adjacent first row sub-pad terminals and the at least one first dummy pad terminal are arranged along the same line, and The pair of adjacent second row sub-pad terminals and the at least one second dummy pad terminal are arranged along the same line.

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