Display device

Abstract

There is provided a display device including: a display panel that displays an image; a printed circuit board driving the display panel and disposed in a first direction with respect to the display panel; a connection film electrically connecting the display panel and the printed circuit board; a connection pad disposed at one end of the connection film and bonded to the display panel in a second direction crossing the first direction; and first signal pads disposed on the display panel along the second direction, transmitting a power supply voltage, and each of the first signal pads overlapping at least two of the connection pads on a plane. The display device has improved display quality.

Description

Technical Field

[0001] The utility model generally relates to a display, and more particularly, to a display providing visual information. Background Art

[0002] The display device includes a display panel that displays an image, a printed circuit board (PCB) that drives the display panel, and a connection film that connects the display panel and the printed circuit board. The display panel and the connection film have a pad (also called a "pad" or "soldering pad") where the display panel and the connection film are bonded to each other to exchange a power supply voltage. Utility Model Content

[0003] The purpose of the utility model is to provide a display device with improved display quality.

[0004] According to an embodiment, a display device may include: a display panel that displays an image; a printed circuit board that drives the display panel and is arranged in a first direction relative to the display panel; a connecting film that electrically connects the display panel and the printed circuit board; a connecting pad that is arranged at one end of the connecting film joined to the display panel and is oriented along a second direction that intersects the first direction; and a first signal pad that is arranged on the display panel and oriented along the second direction, transmits a power supply voltage, and overlaps with at least two of the connecting pads on a plane.

[0005] In an embodiment, a planar area of ​​each of the first signal pads may be larger than a planar area of ​​each of the connection pads.

[0006] In an embodiment, each of the first signal pads may include a first edge and a second edge, the first edge having a first inclination angle on a plane relative to a reference line oriented in a second direction, the second edge facing the first edge and having a second inclination angle on the plane relative to the reference line different from the first inclination angle.

[0007] In an embodiment, each of the first signal pads may further include a third side and a fourth side, the third side connecting the first side and the second side and having a first length, the fourth side facing the third side and being disposed closer to the printed circuit board than the third side, and having a second length different from the first length.

[0008] In an embodiment, a width of each of the first signal pads oriented in the second direction may vary from the third side to the fourth side.

[0009] In an embodiment, the second inclination angle may be greater than the first inclination angle, and the first length may be longer than the second length.

[0010] In an embodiment, a width of each of the first signal pads in the second direction may decrease from the third side to the fourth side.

[0011] In an embodiment, the second inclination angle may be smaller than the first inclination angle, and the first length may be shorter than the second length.

[0012] In an embodiment, a width of each of the first signal pads oriented in the second direction may increase from the third side to the fourth side.

[0013] In an embodiment, the display device may further include a second signal pad arranged on the display panel to be oriented along a second direction, to transmit a data voltage, and to overlap with one of the connection pads on a plane, wherein each of the second signal pads may include: a fifth side having a third inclination angle relative to a reference line on a plane; a sixth side facing the fifth side and having a fourth inclination angle on a plane relative to the reference line that is the same as the third inclination angle; a seventh side connecting the fifth side and the sixth side and having a third length; and an eighth side facing the seventh side to be arranged closer to the printed circuit board than the seventh side and having a fourth length that is the same as the third length.

[0014] In an embodiment, a width of each of the second signal pads oriented in the second direction may be constant from the seventh side to the eighth side.

[0015] In an embodiment, a planar area of ​​each of the first signal pads may be larger than a planar area of ​​each of the second signal pads.

[0016] In an embodiment, the second signal pads may overlap with the connection pads in a one-to-one correspondence.

[0017] In an embodiment, one or more of the connection pads corresponding to one of the first signal pads may partially overlap one of the first signal pads on a plane.

[0018] In an embodiment, a connection pad corresponding to one of the first signal pads may completely overlap one of the first signal pads on a plane.

[0019] A display device according to an embodiment may include: a display panel that displays an image; and first signal pads that are arranged on the display panel and oriented in one direction and transmit a power supply voltage, wherein each of the first signal pads may include a first edge and a second edge, the first edge having a first inclination angle on a plane relative to a reference line oriented in one direction, the second edge facing the first edge and having a second inclination angle on the plane relative to the reference line, the second inclination angle being different from the first inclination angle.

[0020] In an embodiment, each of the first signal pads may further include a third side and a fourth side, the third side connecting the first side and the second side and having a first length, the fourth side facing the third side and being disposed closer to the printed circuit board than the third side, and including a second length different from the first length.

[0021] In an embodiment, a width of each of the first signal pads oriented in one direction may vary from the third side to the fourth side.

[0022] In an embodiment, a width of each of the first signal pads oriented in one direction may decrease from the third side to the fourth side.

[0023] In an embodiment, a width of each of the first signal pads oriented in one direction may increase from the third side to the fourth side.

[0024] In an embodiment, each of the signal pads has a first side and a second side that are opposite, the first side and the second side having different inclination angles on a plane, and thus connecting the first side and the second side and oriented to face each other. The lengths of the third side and the fourth side may be different from each other. Therefore, the area of ​​each of the signal pads on a plane may be larger than the area of ​​each of the connection pads on a plane. Therefore, each of the signal pads may overlap with at least two of the connection pads on a plane. That is, the contact area between the connection pad and the signal pad may be increased.

[0025] In an embodiment, the resistance difference between the connection pad and the signal pad can be reduced. Thus, the heating of the display device can be reduced or prevented. In addition, the alignment error between the connection pad and the signal pad can be reduced. Thus, the reliability of the display device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Illustrative, non-limiting embodiments will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings.

[0027] Figure 1 is a plan view showing a display device according to an embodiment.

[0028] Figure 2 is a diagram showing an arrangement according to an embodiment Figure 1 Plan view of the connection pads in area A.

[0029] Figure 3 is a diagram showing an arrangement according to an embodiment Figure 1 FIG. 1 is a plan view of an example of a signal pad in area A. FIG.

[0030] Figure 4 is a diagram showing an arrangement according to an embodiment Figure 1 FIG. 1 is a plan view of another example of a signal pad in area A of FIG.

[0031] Figure 5 is a diagram showing an arrangement according to an embodiment Figure 1 FIG. 1 is a plan view of yet another example of a signal pad in region A of FIG.

[0032] Figure 6 is a diagram showing a method according to an embodiment of the present invention. Figure 2The connection pads and Figure 3 The signal pad is Figure 1 A plan view superimposed in area A.

[0033] Figure 7 According to an embodiment, the Figure 3 FIG. 4 is an enlarged plan view of a first signal pad among the signal pads of FIG.

[0034] Figure 8 According to an embodiment, the Figure 3 FIG. 4 is an enlarged plan view of a second signal pad among the signal pads of FIG.

[0035] Fig. 9 According to an embodiment, the Figure 5 FIG. 4 is an enlarged plan view of a second signal pad among the signal pads of FIG.

[0036] Fig.10 is a diagram showing an arrangement according to an embodiment Figure 1 FIG. 1 is a plan view of yet another example of a signal pad in region A of FIG.

[0037] Fig.11 is a diagram showing a method according to an embodiment of the present invention. Figure 2 The connection pads and Fig.10 The signal pad is Figure 1 A plan view superimposed in area A.

[0038] Fig.12 is a diagram showing the embodiment including Fig.10 FIG. 4 is an enlarged plan view of a first signal pad among the signal pads of FIG.

[0039] Fig.13 is a diagram showing an arrangement according to an embodiment Figure 1 A plan view of the signal pad in area B. DETAILED DESCRIPTION

[0040] Hereinafter, a display device according to an embodiment will be described in more detail with reference to the accompanying drawings. In the accompanying drawings, the same or similar reference numerals will be used for the same elements. However, the utility model can be implemented in many different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

[0041] It will be understood that when an element (or region, layer, portion, etc.) is referred to as being associated with another element (or region, layer, portion, etc.), such as being "on", "connected to" or "bound to" another element (or region, layer, portion, etc.), the element (or region, layer, portion, etc.) may be directly disposed on, directly connected to or directly bound to the other element (or region, layer, portion, etc.), or an intervening element may be disposed between the element (or region, layer, portion, etc.) and the other element (or region, layer, portion, etc.).

[0042] The same reference numerals or symbols always refer to the same elements. In the accompanying drawings, the thickness, proportion and size of the elements are exaggerated in order to effectively describe the technical content. As used herein, the term "and / or" includes any combination and all combinations of one or more of the related listed items.

[0043] It will be understood that, although the terms first, second, etc. can be used here to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish an element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the scope of the utility model, the first element, component, region, layer or part discussed below can be referred to as the second element, component, region, layer or part. Similarly, the second element, component, region, layer or part can be referred to as the first element, component, region, layer or part. As used herein, unless the context clearly indicates otherwise, the singular form "one", "one (kind / person)" and "described (the)" are intended to also include plural forms.

[0044] In addition, terms "below", "on the lower side", "above", "on the upper side", etc. may be used to describe the relationship of elements shown in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0045] It will also be understood that the terms "comprising," "including," and / or "having," when used in this specification, specify the presence of the stated features, integers, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, "directly disposed on" may mean that there are no additional layers, films, regions, plates, etc. between one component (such as a layer, film, region, plate, etc.) and another component (such as a layer, film, region, plate, etc.). For example, "directly disposed on" may mean that two layers or two components are disposed without using an additional component, such as a bonding component, between them.

[0046] As used herein, "about" or "approximately" is inclusive of the stated value and means within an acceptable range of deviation for the particular value as determined by one of ordinary skill in the art, taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "about" can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, or ±5% of the stated value.

[0047] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. It will also be understood that terms (such as those defined in general dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and will not be interpreted in an idealized or overly formal sense unless explicitly defined as such herein.

[0048] Figure 1 is a plan view showing a display device according to an embodiment.

[0049] Reference Figure 1 , the display device 1000 according to the embodiment may include a display panel 100 , at least one connection film 200 , and at least one printed circuit board 300 .

[0050] In an embodiment, the printed circuit board 300 may be disposed at one side of the display panel 100. For example, the printed circuit board 300 may be disposed in a first direction D1 from the display panel 100.

[0051] In an embodiment, the printed circuit board 300 may be connected to the connection film 200. The printed circuit board 300 may be electrically connected to the display panel 100 through the connection film 200.

[0052] In an embodiment, the printed circuit boards 300 may be disposed on one side of the connection film 200 , and may be arranged side by side in a second direction D2 crossing the first direction D1 .

[0053] In an embodiment, the connection film 200 may be connected to the display panel 100 and the printed circuit board 300. The connection film 200 may electrically connect the display panel 100 and the printed circuit board 300.

[0054] In an embodiment, the connection films 200 may be disposed at one side of the display panel 100 , and may be arranged side by side in the second direction D2 .

[0055] In an embodiment, the display panel 100 may be disposed on one side of the connection film 200. For example, the display panel 100 may be disposed from the connection film 200 in a direction opposite to the first direction D1.

[0056] In an embodiment, the display panel 100 may be connected to the connection film 200. The display panel 100 may be electrically connected to the connection film 200.

[0057] In an embodiment, at least one pixel PX may be provided on the display panel 100. The pixel PX may generate a driving current using a signal and / or a voltage applied through the connection film 200. In addition, the pixel PX may emit light corresponding to the driving current. When light is emitted from the pixel PX, the display panel 100 may display an image.

[0058] In an embodiment, a data line DL oriented in a direction opposite to the first direction D1 may be disposed on the display panel 100. The data line DL is connected to the connection film 200 and the pixel PX, and may supply a data voltage to the pixel PX.

[0059] Figure 2 is a diagram showing an arrangement according to an embodiment Figure 1 Plan view of the connection pads in area A.

[0060] In the examples and with reference to Figure 2 , the connection pad 210 may be disposed at one end of the connection film 200. For example, Figure 2 As shown in , the connection pad 210 may be provided at one end of the connection film 200 bonded to the display panel 100 .

[0061] In an embodiment, a center line CL may be defined at the center of the connection film 200. The center line CL may be a virtual line passing through the center of the connection film 200, and may extend in the first direction D1.

[0062] In an embodiment, the connection pads 210 may be arranged along the second direction D2.

[0063] In an embodiment, the connection pads 210 may be arranged symmetrically with respect to the center line CL. Figure 2 As shown in , the connection pads 210 may form a certain angle with the center line CL and may be arranged symmetrically with respect to the center line CL.

[0064] However, in other embodiments, the utility model is not limited thereto. In an embodiment, the connection pad 210 may have various angles with the center line CL. The connection pad 210 may have a shape oriented in a direction parallel to the center line CL and may be arranged side by side along the second direction D2. That is, the connection pad 210 may be arranged parallel to the center line CL without forming a certain angle.

[0065] Figure 3 is a diagram showing an arrangement according to an embodiment Figure 1 FIG. 1 is a plan view of an example of a signal pad in area A. FIG. Figure 4 is a diagram showing an arrangement according to an embodiment Figure 1 FIG. 1 is a plan view of another example of a signal pad in area A of FIG. Figure 5 is a diagram showing an arrangement according to an embodiment Figure 1 FIG. 1 is a plan view of yet another example of a signal pad in region A of FIG.

[0066] In the examples and with reference to Figures 3 to 5 , the signal pad may be disposed at one end of the display panel 100. The signal pad may include a first signal pad 110 and a second signal pad 120. The first signal pad 110 and the second signal pad 120 may be disposed at one end of the display panel 100 bonded to the connection film 200. The first signal pad 110 and the second signal pad 120 may be arranged along the second direction D2.

[0067] In an embodiment, the first signal pad 110 may transmit a power supply voltage to the display panel 100. The power supply voltage may be a VDD signal or a VSS signal.

[0068] In an embodiment, the second signal pad 120 may transmit the data voltage to the display panel 100. The data voltage may be transmitted along the data line DL.

[0069] In an embodiment, the plane area of ​​the first signal pad 110 may be larger than the plane area of ​​the second signal pad 120. Specifically, the width of the first signal pad 110 in the second direction D2 may be larger than the width of the second signal pad 120 in the second direction D2. The width of the first signal pad 110 in the first direction D1 may be substantially the same as the width of the second signal pad 120 in the first direction D1. However, the utility model is not limited thereto.

[0070] In an embodiment, the connection pads 210 disposed on the left and right sides relative to the center line CL may be symmetrical relative to the center line CL. In addition, the first signal pads 110 disposed on the left and right sides relative to the center line CL may be symmetrical relative to the center line CL. In addition, the second signal pads 120 disposed on the left and right sides relative to the center line CL may be symmetrical relative to the center line CL. However, the embodiments of the utility model are not limited thereto.

[0071] In the embodiments and as Figure 4 As shown in , the first signal pad 110 may be asymmetrical with respect to the center line CL. For example, the first signal pad 110 may be arranged in the second direction D2 with respect to the center line CL, but the first signal pad 110 may not be arranged in the direction opposite to the second direction D2 with respect to the center line CL. However, the utility model is not limited to this embodiment.

[0072] In an embodiment, the first signal pad 110 and the second signal pad 120 may include various angles with the center line CL. For example, one side of the first signal pad 110 and the second signal pad 120 oriented along the first direction D1 may include an angle ranging from about 0 degrees to about 90 degrees with the center line CL. Figures 7 to 9 Details are described in .

[0073] In an embodiment, the second signal pad 120 may be disposed closer to the center line CL than the first signal pad 110. That is, the second signal pad 120 may be disposed further inside the connection film 200 than the first signal pad 110.

[0074] In the embodiments and as Figure 5 As shown in , the first signal pad 110 may not be disposed in region A. That is, only the second signal pad 120 may be disposed in region A. If the first signal pad 110 is not disposed in region A, the first signal pad 110 may be disposed in region B, which will be described later.

[0075] Figure 6 is a diagram showing a method according to an embodiment of the present invention. Figure 2 The connection pads and Figure 3 The signal pad is Figure 1 A plan view superimposed in area A.

[0076] In the examples and with reference to Figure 6 , the first signal pad 110 and the connection pad 210 may be overlapped on a plane.

[0077] In an embodiment, a planar area of ​​the first signal pad 110 may be larger than a planar area of ​​the connection pad 210 .

[0078] In an embodiment, the width of the first signal pad 110 in the second direction D2 may be greater than the width of the connection pad 210 in the second direction D2. The width of the first signal pad 110 in the first direction D1 may be substantially the same as the width of the connection pad 210 in the first direction D1. However, the invention is not limited thereto.

[0079] In an embodiment, each of the first signal pads 110 may overlap at least two of the connection pads 210 on a plane. Figure 6 As shown in , some of the connection pads 210 corresponding to one of the first signal pads 110 may partially overlap the first signal pad 110 , and some of the connection pads 210 may completely overlap the first signal pad 110 on a plane.

[0080] However, the utility model is not limited thereto, and in another embodiment, the connection pad 210 corresponding to any one of the first signal pads 110 may completely overlap with the first signal pad 110 on a plane. In other words, all the connection pads 210 corresponding to one of the first signal pads 110 may completely overlap with the first signal pad 110 on a plane.

[0081] In the embodiments and as Figure 6 As shown in FIG. 1 , the second signal pad 120 and the connection pad 210 may be overlapped on a plane.

[0082] In an embodiment, a planar area of ​​the second signal pad 120 may be substantially the same as a planar area of ​​the connection pad 210 .

[0083] In an embodiment, the width of the second signal pad 120 in the second direction D2 may be substantially the same as the width of the connection pad 210 in the second direction D2. The width of the second signal pad 120 in the first direction D1 may be substantially the same as the width of the connection pad 210 in the first direction D1. That is, the second signal pad 120 may have substantially the same shape and size as the connection pad 210. However, the utility model is not limited thereto.

[0084] In an embodiment, the second signal pads 120 may overlap with the connection pads 210 in a one-to-one correspondence. Figure 6 As shown in , the connection pad 210 corresponding to one of the second signal pads 120 may partially overlap the second signal pad 120 on a plane.

[0085] However, the present invention is not necessarily limited thereto, and in another embodiment, the connection pad 210 corresponding to any one of the second signal pads 120 may completely overlap with the second signal pad 120 on a plane.

[0086] Figure 7 According to an embodiment, the Figure 3 For example, Figure 7 Can show settings to Figure 3 At the same time, relative to Figure 3 The first signal pads 110 disposed on the left and right sides of the center line CL in FIG. 1 may be disposed symmetrically with respect to the center line CL. Figure 3 The first signal pad 110 is on the left side of the center line CL.

[0087] In the examples and with reference to Figure 7 , the first signal pad 110 may include a first side 1101 , a second side 1102 , a third side 1103 and a fourth side 1104 .

[0088] In an embodiment, the first side 1101 and the second side 1102 may face each other. For example, the first side 1101 and the second side 1102 may face each other in the second direction D2. The first side 1101 may be disposed closer to the center line CL than the second side 1102. That is, the first side 1101 may be disposed further inside the connection film 200 than the second side 1102.

[0089] In an embodiment, the first side 1101 may have a first inclination angle 110 a with respect to the reference line BL on a plane.

[0090] In an embodiment, the reference line BL may be a virtual line oriented in the second direction D2. That is, the reference line BL may be a virtual line oriented parallel to the second direction D2.

[0091] In addition, in an embodiment, the first inclination angle 110a may be defined as an angle rotated counterclockwise relative to the reference line BL among angles formed by the first side 1101 of the first signal pad 110 relative to the reference line BL. Conversely, in the case of the first signal pad 110 disposed on the right side of the center line CL, the first inclination angle 110a may be defined as an angle rotated clockwise relative to the reference line BL.

[0092] In an embodiment, the second side 1102 may have a second inclination angle 110 b with respect to the reference line BL on the plane.

[0093] In an embodiment, the second inclination angle 110b may be defined as an angle rotated counterclockwise relative to the reference line BL among the angles formed by the second side 1102 of the first signal pad 110 relative to the reference line BL. Conversely, in the case of the first signal pad 110 disposed on the right side of the center line CL, the second inclination angle 110b may be defined as an angle rotated clockwise relative to the reference line BL.

[0094] In an embodiment, the first inclination angle 110a and the second inclination angle 110b may be different. For example, the first inclination angle 110a may be greater than the second inclination angle 110b.

[0095] In an embodiment, the third side 1103 and the fourth side 1104 may face each other. For example, the third side 1103 and the fourth side 1104 may face each other in the first direction D1. The fourth side 1104 may be disposed closer to the printed circuit board (e.g., Figure 1 PCB 300).

[0096] In an embodiment, the third side 1103 and the fourth side 1104 may be oriented parallel to the reference line BL. However, the invention is not limited thereto.

[0097] In an embodiment, the third side 1103 and the fourth side 1104 may connect the first side 1101 and the second side 1102 .

[0098] In an embodiment, the third side 1103 may have a first length L1 oriented along the second direction D2 . The first length L1 may be defined as the length of a line connecting a point where the third side 1103 crosses the first side 1101 and a point where the third side 1103 crosses the second side 1102 .

[0099] In an embodiment, the fourth side 1104 may have a second length L2 oriented along the second direction D2. The second length L2 may be defined as the length of a line connecting a point where the fourth side 1104 intersects the first side 1101 and a point where the fourth side 1104 intersects the second side 1102.

[0100] In an embodiment, the first length L1 and the second length L2 may be different. For example, the second length L2 may be longer than the first length L1. In other words, since the first side 1101 has a first inclination angle 110a and the second side 1102 has a second inclination angle 110b that is smaller than the first inclination angle 110a, the second length L2 may be longer than the first length L1.

[0101] In an embodiment, the width of the first signal pad 110 in the second direction D2 may vary from the third side 1103 to the fourth side 1104. For example, the width of the first signal pad 110 in the second direction D2 may increase from the third side 1103 to the fourth side 1104. However, the utility model is not limited thereto, and if the second length L2 is longer than the first length L1, the width of the first signal pad 110 in the second direction D2 may change in various ways as it moves from the third side 1103 to the fourth side 1104. For example, the width of the first signal pad 110 in the second direction D2 may be constant along the first direction D1 from the third side 1103, and then may increase from a specific point until the fourth side 1104. In yet another example, the width of the first signal pad 110 in the second direction D2 may increase from the third side 1103 along the first direction D1, and then may become constant from a specific point until the fourth side 1104.

[0102] Figure 8 According to an embodiment, the Figure 3 FIG. 4 is an enlarged plan view of a second signal pad among the signal pads of FIG.

[0103] In the embodiment, relative to Figure 8 The second signal pads 120 disposed on the left and right sides of the center line CL in FIG. 1 may be disposed symmetrically with respect to the center line CL. Figure 6 The second signal pad 120 is on the left side of the center line CL in FIG.

[0104] In the examples and with reference to Figure 8 , the second signal pad 120 may include a fifth side 1201 , a sixth side 1202 , a seventh side 1203 and an eighth side 1204 .

[0105] In an embodiment, the fifth side 1201 and the sixth side 1202 may face each other. For example, the fifth side 1201 and the sixth side 1202 may face each other in the second direction D2. The fifth side 1201 may be arranged closer to the center line CL than the sixth side 1202. That is, the fifth side 1201 may be arranged further inside the connection film 200 than the sixth side 1202.

[0106] In an embodiment, the fifth side 1201 may have a third inclination angle 120 a with respect to the reference line BL on the plane.

[0107] In an embodiment, the third inclination angle 120a may be defined as an angle rotated counterclockwise relative to the reference line BL among the angles formed by the fifth side 1201 of the second signal pad 120 relative to the reference line BL. Conversely, in the case of the second signal pad 120 disposed on the right side of the center line CL, the third inclination angle 120a may be defined as an angle rotated clockwise relative to the reference line BL.

[0108] In an embodiment, the sixth side 1202 may have a fourth inclination angle 120 b with respect to the reference line BL on the plane.

[0109] In an embodiment, the fourth inclination angle 120b may be defined as an angle rotated counterclockwise relative to the reference line BL among the angles formed by the sixth side 1202 of the second signal pad 120 relative to the reference line BL. Conversely, in the case of the second signal pad 120 disposed on the right side of the center line CL, the fourth inclination angle 120b may be defined as an angle rotated clockwise relative to the reference line BL.

[0110] In an embodiment, the third inclination angle 120a and the fourth inclination angle 120b may be the same. That is, the fifth side 1201 and the sixth side 1202 may be oriented parallel to each other.

[0111] In an embodiment, the seventh side 1203 and the eighth side 1204 may face each other. For example, the seventh side 1203 and the eighth side 1204 may face each other in the first direction D1. The eighth side 1204 may be disposed closer to the printed circuit board (eg, Figure 1 PCB 300).

[0112] In an embodiment, the seventh side 1203 and the eighth side 1204 may be oriented parallel to the reference line BL. However, the invention is not limited thereto.

[0113] In an embodiment, the seventh side 1203 and the eighth side 1204 may connect the fifth side 1201 and the sixth side 1202 .

[0114] In an embodiment, the seventh side 1203 may have a third length L3 oriented along the second direction D2. The third length L3 may be defined as the length of a line connecting a point where the seventh side 1203 intersects the fifth side 1201 and a point where the seventh side 1203 intersects the sixth side 1202.

[0115] In an embodiment, the eighth side 1204 may have a fourth length L4 oriented along the second direction D2. The fourth length L4 may be defined as the length of a line connecting a point where the eighth side 1204 intersects the fifth side 1201 and a point where the eighth side 1204 intersects the sixth side 1202.

[0116] In an embodiment, the third length L3 may be the same as the fourth length L4. In other words, since the fifth side 1201 has the third inclination angle 120a and the sixth side 1202 has the fourth inclination angle 120b which is the same as the third inclination angle 120a, the third length L3 may be the same as the fourth length L4.

[0117] According to an embodiment, each of the first signal pads 110 may overlap at least two of the connection pads 210 on a plane. That is, the contact area between the connection pads 210 and the first signal pads 110 may be increased. The resistance difference between the connection pads 210 and the first signal pads 110 may be reduced. Therefore, the display device (e.g., Figure 1 In addition, the alignment error between the connection pad 210 and the first signal pad 110 can be reduced. Thus, the reliability of the display device can be improved.

[0118] Fig. 9 According to an embodiment, the Figure 5 FIG. 4 is an enlarged plan view of a second signal pad among the signal pads of FIG.

[0119] In the embodiment, in addition to the third tilt angle 120a and the fourth tilt angle 120b, refer to Fig. 9 The second signal pad 120 described above can be used with Figure 8 The second signal pad 120 described in is substantially the same as that in . Therefore, repeated explanations may be omitted or simplified.

[0120] In the examples and with reference to Fig. 9 , the second signal pad 120 may extend in a direction parallel to the center line CL.

[0121] Fig.10 is a diagram showing an arrangement according to an embodiment Figure 1 FIG. 1 is a plan view of yet another example of a signal pad in region A of FIG. Fig.11 is a diagram showing a method according to an embodiment of the present invention. Figure 2 The connection pads and Fig.10 The signal pad is Figure 1 A plan view superimposed in area A. Fig.12 is a diagram showing the embodiment including Fig.10 FIG. 4 is an enlarged plan view of a first signal pad among the signal pads of FIG.

[0122] In the examples and with reference to Figures 10 to 12 , except including a first signal pad 110 ′ instead of the first signal pad 110 , Figures 10 to 12 The signal pads shown can be used with Figures 3 to 7 That is, except for the shape, Figures 10 to 12 The first signal pad 110' can be connected with Figures 3 to 7 Therefore, repeated descriptions may be omitted or simplified.

[0123] In the embodiments and as Fig.10 As shown in , the first signal pad 110 ′ and the second signal pad 120 may be disposed at one end of the display panel 100 .

[0124] In an embodiment, the first signal pad 110' and the second signal pad 120 may be disposed at one end of the display panel 100 bonded to the connection film 200. Specifically, the first signal pad 110' and the second signal pad 120 may be arranged side by side along the second direction D2.

[0125] In an embodiment, a planar area of ​​the first signal pad 110 ′ may be larger than a planar area of ​​the second signal pad 120 .

[0126] In an embodiment, the width of the first signal pad 110' in the second direction D2 may be greater than the width of the second signal pad 120 in the second direction D2. The width of the first signal pad 110' in the first direction D1 may be substantially the same as the width of the second signal pad 120 in the first direction D1. However, the invention is not limited thereto.

[0127] In an embodiment, Fig.11 As shown in FIG. 1 , the first signal pad 110 ′ and the connection pad 210 may be overlapped.

[0128] In an embodiment, a planar area of ​​the first signal pad 110 ′ may be larger than a planar area of ​​the connection pad 210 .

[0129] In an embodiment, the width of the first signal pad 110' in the second direction D2 may be greater than the width of the connection pad 210 in the second direction D2. The width of the first signal pad 110' in the first direction D1 may be substantially the same as the width of the connection pad 210 in the first direction D1. However, the invention is not limited thereto.

[0130] In an embodiment, each of the first signal pads 110' may overlap at least two of the connection pads 210 in a plan view. Fig.11 As shown in , some of the connection pads 210 corresponding to any one of the first signal pads 110 ′ may partially overlap the first signal pads 110 ′ in plan view, and other connection pads 210 may completely overlap the first signal pads 110 ′ in plan view.

[0131] However, the utility model is not limited thereto, and in another embodiment, the connection pad 210 corresponding to any one of the first signal pads 110' may completely overlap with the first signal pad 110' on a plane. In other words, all the connection pads 210 corresponding to one of the first signal pads 110' may completely overlap with the first signal pad 110' on a plane.

[0132] In the embodiments and as Fig.12 As shown in FIG, the first signal pad 110 ′ may include a first side 1101 ′, a second side 1102 ′, a third side 1103 ′, and a fourth side 1104 ′.

[0133] In an embodiment, the first side 1101' and the second side 1102' may face each other. For example, the first side 1101' and the second side 1102' may face each other in the second direction D2. The first side 1101' may be arranged closer to the center line CL than the second side 1102'. That is, the first side 1101' may be arranged further inside the connection film 200 than the second side 1102'.

[0134] In an embodiment, the first side 1101 ′ may have a first inclination angle 110 a ′ with respect to the reference line BL on a plane.

[0135] In an embodiment, the first inclination angle 110a' may be defined as an angle rotated counterclockwise relative to the reference line BL among the angles formed by the first side 1101' of the first signal pad 110' relative to the reference line BL. Conversely, in the case of the first signal pad 110' disposed on the right side of the center line CL, the first inclination angle 110a' may be defined as an angle rotated clockwise relative to the reference line BL.

[0136] In an embodiment, the second side 1102 ′ may have a second inclination angle 110 b ′ with respect to the reference line BL on the plane.

[0137] In an embodiment, the second inclination angle 110b' may be defined as an angle rotated counterclockwise relative to the reference line BL among the angles formed by the second side 1102' of the first signal pad 110' relative to the reference line BL. Conversely, in the case of the first signal pad 110' disposed on the right side of the center line CL, the second inclination angle 110b' may be defined as an angle rotated clockwise relative to the reference line BL.

[0138] In an embodiment, the first inclination angle 110a' and the second inclination angle 110b' may be different. For example, the first inclination angle 110a' may be smaller than the second inclination angle 110b'.

[0139] In an embodiment, the third side 1103' and the fourth side 1104' may face each other. For example, the third side 1103' and the fourth side 1104' may face each other in the first direction D1. The fourth side 1104' may be disposed closer to the printed circuit board (e.g., Figure 1 PCB 300).

[0140] In an embodiment, the third side 1103 ′ and the fourth side 1104 ′ may be parallel to the reference line BL. However, the invention is not limited thereto.

[0141] In an embodiment, the third side 1103 ′ and the fourth side 1104 ′ may connect the first side 1101 ′ and the second side 1102 ′.

[0142] In an embodiment, the third side 1103' may have a first length L1' along the second direction D2. The first length L1' may be defined as the length of a line connecting a point where the third side 1103' intersects the first side 1101' and a point where the third side 1103' intersects the second side 1102'.

[0143] In an embodiment, the fourth side 1104' may have a second length L2' along the second direction D2. The second length L2' may be defined as the length of a line connecting a point where the fourth side 1104' intersects the first side 1101' and a point where the fourth side 1104' intersects the second side 1102'.

[0144] In an embodiment, the first length L1' and the second length L2' may be different. For example, the second length L2' may be shorter than the first length L1'. In other words, since the first side 1101' has a first inclination angle 110a' and the second side 1102' has a second inclination angle 110b' greater than the first inclination angle 110a', the first length L1' may be greater than the second length L2'.

[0145] In an embodiment, the width of the first signal pad 110' in the second direction D2 may vary from the third side 1103' to the fourth side 1104'. For example, the width of the first signal pad 110' in the second direction D2 may decrease from the third side 1103' to the fourth side 1104'. However, the utility model is not limited thereto, and if the first length L1' is longer than the second length L2', the width of the first signal pad 110' in the second direction D2 may change in various ways as it moves from the third side 1103' to the fourth side 1104'. For another example, the width of the first signal pad 110' in the second direction D2 may be constant from the third side 1103' along the first direction D1, and then may decrease from a certain point until the fourth side 1104'. For another example, the width of the first signal pad 110' in the second direction D2 may decrease from the third side 1103' along the first direction D1, and become constant from a certain point until the fourth side 1104'.

[0146] Fig.13 is a diagram showing an arrangement according to an embodiment Figure 1 A plan view of the signal pad in area B.

[0147] Apart from Figures 3 to 5 In addition to the position of the first signal pad 110, refer to Fig.13 The described construction can be compared with Figures 3 to 5 The structure described in is basically the same. Therefore, repeated explanations can be omitted or simplified. In the embodiment, Figures 10 to 12 As shown in FIG. 1 , the first signal pad 110′ disposed in region A may have a shape in which the third side 1103′ is longer than the fourth side 1104′. In short, in addition to the shape of the first signal pad 110, the first signal pad 110 and the second signal pad 120 that may be disposed in region B may be similar to Figures 2 to 12 The first signal pad 110 and the second signal pad 120 shown in FIG. 1 are different.

[0148] According to an embodiment, each of the first signal pads 110 may overlap at least two of the connection pads 210 on a plane. That is, the contact area between the connection pads 210 and the first signal pads 110 may be increased. Therefore, the resistance difference between the connection pads 210 and the first signal pads 110 may be reduced. Therefore, the display device (e.g., Figure 1 In addition, the alignment error between the connection pad 210 and the first signal pad 110 can be reduced. Thus, the reliability of the display device can be improved.

[0149] The utility model should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the disclosure will be thorough and complete, and will fully convey the concept of the utility model to those skilled in the art. Furthermore, although the utility model has been specifically shown and described with reference to the embodiments of the utility model, it will be understood by those of ordinary skill in the art that various changes in form and detail may be made therein without departing from the spirit or scope of the utility model. In addition, the embodiments or portions of the embodiments may be combined in whole or in part without departing from the scope of the utility model.

Claims

1. A display device, characterized in that: The display device comprises: A display panel for displaying images; a printed circuit board, driving the display panel and arranged in a first direction relative to the display panel; A connecting film electrically connecting the display panel and the printed circuit board; a connection pad disposed at one end of the connection film bonded to the display panel and oriented along a second direction intersecting the first direction; and A first signal pad, disposed on the display panel and oriented along the second direction, transmits a power supply voltage and overlaps at least two of the connection pads on a plane.

2. The display device according to claim 1, characterized in that A planar area of ​​each of the first signal pads is larger than a planar area of ​​each of the connection pads.

3. The display device according to claim 1, characterized in that Each of the first signal pads comprises: a first side having a first inclination angle on a plane relative to a reference line oriented in the second direction; a second side, facing the first side and having a second inclination angle relative to the reference line on a plane, wherein the second inclination angle is different from the first inclination angle; a third side connecting the first side and the second side and having a first length; and A fourth side faces the third side and is disposed closer to the printed circuit board than the third side, wherein the fourth side includes a second length different from the first length.

4. The display device according to claim 3, characterized in that: A width of each of the first signal pads oriented in the second direction varies from the third side to the fourth side.

5. The display device according to claim 4, characterized in that: A width of each of the first signal pads in the second direction decreases from the third side to the fourth side.

6. The display device according to claim 4, characterized in that: A width of each of the first signal pads oriented in the second direction increases from the third side to the fourth side.

7. The display device according to claim 3, characterized in that: The display device further includes: a second signal pad, disposed on the display panel and oriented along the second direction, transmitting a data voltage, and overlapping one of the connection pads on a plane, Wherein, each of the second signal pads comprises: a fifth side having a third inclination angle relative to the reference line on the plane; a sixth side, facing the fifth side and having a fourth inclination angle, wherein the fourth inclination angle is the same as the third inclination angle relative to the reference line on the plane; a seventh side connecting the fifth side and the sixth side and having a third length; and an eighth side facing the seventh side and disposed closer to the printed circuit board than the seventh side, wherein the eighth side includes a fourth length that is the same as the third length.

8. The display device according to claim 7, characterized in that: A planar area of ​​each of the first signal pads is larger than a planar area of ​​each of the second signal pads.

9. A display device, characterized in that: The display device comprises: A display panel that displays an image; and a first signal pad disposed on the display panel and oriented in one direction and transmitting a power supply voltage, Wherein, each of the first signal pads comprises: a first side having a first inclination angle on the plane relative to a reference line oriented in the one direction; a second side, facing the first side and having a second inclination angle relative to the reference line on a plane, wherein the second inclination angle is different from the first inclination angle; a third side connecting the first side and the second side and having a first length; and A fourth side faces the third side, wherein the fourth side is disposed closer to the printed circuit board than the third side and includes a second length different from the first length.

10. The display device according to claim 9, characterized in that: A width of each of the first signal pads oriented in the one direction varies from the third side to the fourth side.

Images