Display device

Abstract

A display device may include the following elements: a substrate including a display area and a peripheral area outside the display area; a first data line longitudinally extending in a first direction and disposed in the display area; a first wiring disposed in the display area; and a driving circuit disposed in the peripheral area and electrically connected to the first data line through the first wiring. A branch may protrude from a main body of the first wiring. Two branches among the branches may protrude toward each other. End edges of the two branches may be spaced apart in a second direction different from the first direction.

Description

[0001] Cross - reference to related applications

[0002] This application claims the priority and benefit of Korean Patent Application No. 10 - 2020 - 0023006, filed with the Korean Intellectual Property Office on February 25, 2020; the Korean patent application is incorporated herein by reference. Technical field

[0003] The present disclosure relates to a display device. Background art

[0004] A display device may include a display area for displaying an image according to an input signal, and may include a peripheral area adjacent to the display area. Preferably, the peripheral area should be minimized and the display area should be maximized. Summary of the invention

[0005] Embodiments may relate to a display device in which patterned wirings in a display area are invisible or unobvious.

[0006] Embodiments may relate to a display device in which a peripheral area is minimized.

[0007] According to one or more embodiments, a display device includes: a substrate including a display area and a peripheral area outside the display area; first data lines extending in a first direction and disposed in the display area; and first wirings disposed in the display area and connected to the first data lines to transfer data signals from a driving circuit disposed in the peripheral area to the first data lines, wherein each of the first wirings includes branches protruding from the first wiring, and ends of a pair of branches protruding toward each other from two adjacent first wirings among the first wirings are spaced apart in a second direction crossing the first direction.

[0008] The first wiring may include a first portion, a third portion, and a second portion between the first portion and the third portion, wherein the second portion may extend in the second direction.

[0009] Each of the first wirings may include a first branch protruding from the first portion and the third portion and a second branch protruding from the second portion.

[0010] Ends of a pair of first branches protruding toward each other from two adjacent first wirings among the first wirings may be spaced apart in the second direction.

[0011] Ends of a pair of second branches protruding toward each other from two adjacent first wirings among the first wirings may be spaced apart in the second direction.

[0012] The ends of a pair of first branches spaced apart in a second direction and the ends of a pair of second branches spaced apart in the second direction can be arranged on the same axis.

[0013] The display device may further include: second data lines arranged in the display area; and second wirings and third wirings arranged in the peripheral area.

[0014] Each of the first wirings may include one end connected to the first data line and the other end connected to the second wiring.

[0015] The first wiring and the first data line may be arranged on different layers from each other.

[0016] The third wiring may be connected to the second data line respectively.

[0017] The third wiring and the second data line may be arranged on different layers from each other.

[0018] The display device may further include a fourth wiring arranged in the display area, where the fourth wiring may be electrically separated from the first wiring.

[0019] Each of the fourth wirings may include a third branch protruding from the fourth wiring, where the ends of a pair of third branches protruding from two adjacent fourth wirings among the fourth wirings toward each other may be spaced apart in the second direction.

[0020] According to one or more embodiments, a display device includes: a substrate including a display area and a peripheral area outside the display area; first data lines extending in a first direction and arranged in the display area; and first wirings arranged in the display area and connected to the first data lines to transmit data signals from a driving circuit arranged in the peripheral area to the first data lines, where each of the first wirings includes a branch protruding from the first wiring, and the end of each of the branches includes a diagonal shape inclined in a diagonal direction of the first direction and a second direction intersecting the first direction.

[0021] The directions in which the ends of the branches are inclined may be the same as each other.

[0022] The first wiring may include a first portion, a third portion, and a second portion between the first portion and the third portion, where the second portion may extend in the second direction.

[0023] Each of the first wirings may include a first branch protruding from the first portion and the third portion and a second branch protruding from the second portion, and the end of each of the first branch and the second branch may include a diagonal shape inclined in the diagonal direction.

[0024] The ends of a pair of first branches that protrude from two adjacent first wirings in the first wiring and face each other can be spaced apart in the second direction.

[0025] The ends of a pair of second branches that protrude from two adjacent first wirings in the first wiring and face each other can be spaced apart in the first direction.

[0026] The ends of the pair of first branches that are spaced apart in the second direction and the ends of the pair of second branches that are spaced apart in the first direction can be arranged on the same axis. An embodiment may relate to a display device. The display device may include the following elements: a substrate including a display area and a peripheral area outside the display area; a first data line extending longitudinally in a first direction and disposed in the display area; a first wiring disposed in the display area; and a driving circuit disposed in the peripheral area and electrically connected to the first data line through the first wiring. Branches protrude from the main body of the first wiring. Two of the branches may protrude toward each other. The end edges of the two branches may be spaced apart in a second direction different from the first direction and may be shorter than the sides of the two branches.

[0027] The second direction may be perpendicular to the first direction.

[0028] The end edges of the two branches may be parallel to each other.

[0029] The sides of the two branches may be the longitudinal sides of the two branches.

[0030] The sides of the two branches may be the parallel sides of the two branches.

[0031] A first portion of the first wiring may be connected to a third portion of the first wiring through a second portion of the first wiring respectively. The second portion of the first wiring may extend longitudinally in the second direction, may not be aligned with the first portion of the first wiring, and may not be aligned with the third portion of the first wiring.

[0032] The first branches may protrude from the first portion of the first wiring and from the third portion of the first wiring. The second branches may protrude from the second portion of the first wiring.

[0033] Two of the first branches may protrude toward each other. The end edges of the two first branches may be spaced apart in the second direction and may be shorter than the sides of the two first branches.

[0034] The end edges of two of the second branches may be spaced apart in the second direction and may be shorter than the sides of the two second branches.

[0035] The end edges of the two first branches may be respectively aligned with the end edges of the two second branches.

[0036] The display device may further include the following elements: a second data line disposed in the display area; a second wiring disposed in the peripheral area and electrically isolated from the second data line; and a third wiring disposed in the peripheral area and electrically isolated from the second wiring.

[0037] The second wiring may be electrically connected to the first data line through the first wiring respectively.

[0038] The first wiring and the first data line may be disposed on different layers from each other.

[0039] The third wiring may be electrically connected to the second data line respectively.

[0040] The third wiring and the second data line may be disposed on different layers from each other.

[0041] The display device may further include a fourth wiring disposed in the display area. The fourth wiring may be electrically isolated from the first wiring.

[0042] The display device may further include an insulating layer. A surface of the insulating layer may directly contact the first wiring and may directly contact the fourth wiring.

[0043] A third branch protrudes from a main body of the fourth wiring. End edges of two of the third branches may be spaced apart in a second direction and may be shorter than sides of the two third branches.

[0044] An embodiment may relate to a display device. The display device may include the following elements: a substrate including a display area and a peripheral area outside the display area; a first data line longitudinal in a first direction and disposed in the display area; a first wiring disposed in the display area; and a driving circuit disposed in the peripheral area and electrically connected to the first data line through the first wiring. A branch may protrude from a main body of the first wiring. An end edge of the branch may be inclined with respect to the first direction and may be shorter than a side of the branch.

[0045] Sides of the two branches may be longitudinal sides of the two branches.

[0046] Sides of the two branches may be parallel sides of the two branches.

[0047] The end edges of the branch may be parallel to each other.

[0048] A first portion of the first wiring may be connected to a third portion of the first wiring through a second portion of the first wiring respectively. The second portion of the first wiring may be longitudinal in a second direction different from the first direction, may not be aligned with the first portion of the first wiring, and may not be aligned with the third portion of the first wiring.

[0049] The second direction may be perpendicular to the first direction.

[0050] The first branch may protrude from a first portion of the first wiring and from a third portion of the first wiring. The second branch may protrude from a second portion of the first wiring. An end edge of the first branch may be inclined with respect to a first direction and may be shorter than a side of the first branch. An end edge of the second branch may be inclined with respect to the first direction and may be shorter than a side of the second branch.

[0051] Two first branches in the first branch may protrude toward each other. End edges of the two first branches may be spaced apart in a second direction.

[0052] Two second branches in the second branch may protrude toward each other. End edges of the two second branches may be spaced apart in the first direction.

[0053] A gap between end edges of the two first branches may be aligned with a gap between end edges of the two second branches in the first direction. Description of the Drawings

[0054] Figure 1 is a schematic plan view of a display panel according to an embodiment.

[0055] Figure 2 is according to an embodiment Figure 1 schematic conceptual diagram of region A.

[0056] Figure 3 is according to an embodiment Figure 2 enlarged plan view of region A'.

[0057] Figure 4 is an equivalent circuit diagram of a pixel included in a display panel according to an embodiment.

[0058] Figure 5 is an equivalent circuit diagram of a pixel included in a display panel according to an embodiment.

[0059] Figure 6 illustrates a schematic plan view of a first wiring in a display device according to an embodiment.

[0060] Figure 7 illustrates a schematic plan view of a first wiring in a display device according to an embodiment.

[0061] Figure 8 illustrates a schematic plan view of a first wiring in a display device according to an embodiment.

[0062] Figure 9 illustrates a schematic plan view of a fourth wiring in a display device according to an embodiment.

[0063] Figure 10A is a schematic plan view of a branch having ends spaced apart in the same direction according to an embodiment.

[0064] Figure 10B is a schematic plan view of a branch having ends spaced apart in different directions according to a comparative example.

[0065] Figure 11 illustrates a schematic plan view of a first wiring in a display device according to an embodiment.

[0066] Figure 12 illustrates a schematic plan view of a first wiring in a display device according to an embodiment.

[0067] Figure 13 illustrates a schematic plan view of a first wiring in a display device according to an embodiment.

[0068] Figure 14 illustrates a schematic plan view of a fourth wiring in a display device according to an embodiment.

[0069] Figure 15 illustrates a schematic plan view of a first wiring in a display device according to an embodiment.

[0070] Figure 16A is a schematic plan view of a branch having diagonal / inclined ends / edges according to an embodiment.

[0071] Figure 16B is a schematic plan view of a branch having vertical or horizontal ends according to a comparative example.

[0072] Figure 17 is a schematic plan view of a part of a display panel according to an embodiment.

[0073] Figure 18 is a schematic plan view of a part of a display panel according to an embodiment.

[0074] Figure 19 is according to an embodiment along Figure 1 a cross-sectional view of the display panel taken along line I-I'. DETAILED DESCRIPTION

[0075] Example embodiments are described with reference to the accompanying drawings, where like reference numerals may refer to like elements. The actual embodiments may have different forms and should not be construed as limited to the described embodiments.

[0076] Although terms such as "first" and "second" may be used to describe various elements, these elements should not be limited by these terms. These terms can be used to distinguish one element from another. Without departing from the teachings of one or more embodiments, a first element may be referred to as a second element. Describing an element as a "first" element may not require or imply the existence of a second element or other elements. Terms such as "first" and "second" can be used to distinguish different categories or groups of elements. For the sake of brevity, terms such as "first" and "second" can respectively represent "first type (or first group)", "second type (or second group)", etc.

[0077] Unless the context clearly indicates otherwise, the singular forms "a", "the", and "said" may also refer to the plural forms.

[0078] The terms "comprising", "including", and "having" may specify the presence of the stated features or components, but may not exclude the presence or addition of one or more other features or components.

[0079] When a first element is referred to as being "on" a second element, the first element may be directly on the second element, or there may be one or more intermediate elements between the first element and the second element. When a first element is referred to as being "directly on" a second element, there may not or may not be a need for an intermediate element (except for environmental elements such as air) between the first element and the second element.

[0080] For ease of illustration, the dimensions in the drawings may be enlarged or reduced.

[0081] When an element (e.g., a wiring group) is described as being "longitudinal in a first direction" or "extending in a first direction", the longitudinal direction of the element (e.g., the wiring group) is in the first direction. The extending direction of the element may refer to the longitudinal direction of the element.

[0082] The term "connected" may refer to "electrically connected" or "electrically connected without an intermediate transistor". The term "insulated" may refer to "electrically insulated" or "electrically isolated". The term "driven" may refer to "controlled" or "operated". The term "part" may refer to "local". The term "pattern" may refer to "member". The term "end" may refer to "end segment" or "end edge". The display panel may be a display device or a module / part of a display device.

[0083] Figure 1 is a schematic plan view of a display panel 10 according to an embodiment. The display panel 10 may be a display device or a part of a display device. Figure 2 is according to an embodiment Figure 1 of the schematic conceptual diagram of area A. Figure 3 is according to an embodiment Figure 2Enlarged plan view of region A'.

[0084] Referring Figure 1 , the display panel 10 may include a substrate 100. The display panel 10 may have a display area DA for displaying an image according to an input signal, and may have a peripheral area PA located outside the display area DA and / or adjacent to the display area DA. The substrate 100 may have a display area DA and a peripheral area PA corresponding to the display area DA and the peripheral area PA of the display panel 10.

[0085] In a plan view, the boundary of the display area DA may be substantially rectangular or square. As Figure 1 and Figure 2 illustrated, the first corner CN1 of the boundary of the display area DA may be substantially arc-shaped. The display area DA may include a first edge E1 and a second edge E2 opposite to each other, and may include a third edge E3 and a fourth edge E4 between the first edge E1 and the second edge E2 and opposite to each other. The pad area PADA is adjacent to the fourth edge E4. The first corner CN1 may connect the first edge E1 to the fourth edge E4. The second corner CN2 of the boundary of the display area DA may also be substantially arc-shaped. The second corner CN2 may connect the second edge E2 to the fourth edge E4. Other portions of the boundary of the display area DA may also be arc-shaped.

[0086] The peripheral area PA may surround the display area DA. The peripheral area PA may not include pixels PX, and may include the pad area PADA. The pad area PADA may support and / or include electronic components, a printed circuit board, and voltage lines configured to supply power for driving display elements. The pad area PADA may include pads, and the pads may be electrically connected to a data driver. The data driver may supply data signals and may be arranged on a film electrically connected to the pads using chip-on-film (COF) technology. The data driver may be directly arranged on the substrate 100 using chip-on-glass (COG) or chip-on-plastic (COP) technology.

[0087] Figure 1 Illustrated is the state of the substrate 100 during the manufacturing process of the display device. In an electronic device including the display device / panel 10, a part of the substrate 100 may be bent to reduce the area of the peripheral area PA.

[0088] As Figure 2As shown in the figure, the peripheral region PA may include a bending region BA, and the bending region BA may be between the pad region PADA and the display region DA. The substrate 100 may be bent at the bending region BA to allow the pad region PADA to overlap with the display region DA and be located behind the display region DA without covering the image display surface of the display region DA. Therefore, the user can perceive the minimum peripheral region PA (around the display region DA).

[0089] Figure 3 A region / portion A' of the display device / panel 10 including a first corner CN1 is shown. As observed by the user during normal use, the display device / panel 10 and / or the electronic device including the display device / panel 10 may have an arcuate / circular corner. However, as Figure 3 shown in the figure, in a significantly magnified view / image of the portion A', the first corner CN1 may include a straight portion extending in a first direction D1 and may include a straight portion extending in a second direction D2 different (and perpendicular) from the first direction D1.

[0090] Pixels PX and signal lines for applying an electrical signal to the pixels PX may be located in the display region DA.

[0091] Each of the pixels PX may include a display element and a pixel circuit for driving the display element. As an example, the display element may be an organic light emitting diode, and the pixel circuit may include a thin film transistor and a storage capacitor. The pixels PX may include a first pixel that emits light of a first color, a second pixel that emits light of a second color, and a third pixel that emits light of a third color. For example, the first pixel may be a red pixel (R), the second pixel may be a green pixel (G), and the third pixel may be a blue pixel (B).

[0092] The signal lines for applying an electrical signal to the pixels PX may include scan lines SL and data lines DL. Each of the data lines DL may extend in a first direction D1, and each of the scan lines SL may extend in a second direction D2. The scan lines SL may respectively transmit scan signals to the rows of the pixels PX, and the data lines DL may respectively transmit data signals to the columns of the pixels PX. Each of the pixels PX may be connected to at least one corresponding scan line SL among the scan lines SL and the corresponding data line DL among the data lines DL. As Figure 3 shown in the figure, the data lines DL may include a first data line DL1 and a second data line DL2. The first data line DL1 may be a data line connected to the first wiring 200. The second data line DL2 may be a data line other than the first data line DL1.

[0093] The first wiring 200 can transmit an electrical signal supplied from the pad area PADA to a signal line connected to the pixel PX, and can be substantially arranged in the display area DA. For example, the first wiring 200 can be connected to the first data line DL1 to transmit a data signal supplied from the pad of the pad area PADA to the first data line DL1. Each of the first wirings 200 can be located in a layer different from the layers of the scan line SL and the data line DL.

[0094] Referring to Figure 1 , the first wiring 200 arranged on the left side of the virtual (geometric) center line CL of the display panel 10 and the first wiring 200 arranged on the right side of the center line CL can be substantially symmetric with respect to the center line CL. The first wiring 200 on the left side of the center line CL can be a mirror image of the first wiring 200 on the right side of the center line CL.

[0095] Each of the first wirings 200 can include a first portion 200a, a second portion 200b, and a third portion 200c. The second portion 200b can extend in the second direction D2 and can connect the first portion 200a to the third portion 200c. At least one of the first portion 200a and the third portion 200c can have a straight shape extending in the first direction D1, and / or can include a portion extending in one or more of the first direction D1, the second direction D2, the diagonal direction D12, and the diagonal direction D21.

[0096] The first portion 200a, the second portion 200b, and the third portion 200c can be integrally formed. The first portion 200a can be arranged closer to the center line CL than the corresponding third portion 200c, and the third portion 200c can be arranged closer to the corresponding one of the corners CN1 and CN2 than the corresponding first portion 200a. The first portion 200a can extend from the fourth edge E4 in a direction away from the pad area PADA. The second portion 200b can be bent from the first portion 200a to extend in the second direction D2 toward the first edge E1 or the second edge E2. The third portion 200c can be bent from the second portion 200b to extend back to the fourth edge E4.

[0097] The display area DA can be divided into a plurality of areas based on the arrangement of the first wiring 200. For example, the display area DA can include a first area S1 in which the first wiring 200 is arranged and a second area S2 in which the first wiring 200 is not arranged.

[0098] The first region S1 can be divided into a plurality of sub-regions according to the positions of portions / local parts of the first wiring 200. For example, the first region S1 can include a first sub-region SS1 in which a first portion 200a of the first wiring 200 is arranged, a second sub-region SS2 in which a second portion 200b is arranged, and a third sub-region SS3 in which a third portion 200c is arranged. The first sub-region SS1, the second sub-region SS2, and the third sub-region SS3 located on the right side of the center line CL can be mirror images of the first sub-region SS1, the second sub-region SS2, and the third sub-region SS3 located on the left side of the center line CL, respectively.

[0099] Referring Figure 3 , the second portion 200b of each of the first wirings 200 can be parallel to the corresponding scan line SL, and can partially overlap the corresponding scan line SL or can be positioned closer to the corresponding scan line SL than to other scan lines.

[0100] The pixel columns overlapping the first portion 200a can be spaced apart from the pixel columns overlapping the corresponding third portion 200c by at least one pixel column. A pair of adjacent first portions 200a of the first wirings 200 can be spaced apart from each other by at least the width of one pixel column. A pair of adjacent third portions 200c of the first wirings 200 can be spaced apart from each other by at least the width of one pixel column. A pair of adjacent second portions 200b of the first wirings 200 can be spaced apart from each other by at least the width of one pixel row.

[0101] As Figure 3 illustrated in, the second wiring 203 and the third wiring 205 can be arranged in the peripheral region PA.

[0102] Each of the first wirings 200 can have one end connected to the first data line DL1 and the other end connected to the second wiring 203. One end of the second wiring 203 can be connected to the first wiring 200, and the other end of the second wiring 203 can be connected to a pad in the pad region PADA. In an embodiment, the second wiring 203 can be a part of the first portion 200a extending to the peripheral region PA. In an embodiment, the second wiring 203 can be a separate wiring arranged in a layer different from the layer of the first wiring 200, and can be electrically connected to the first portion 200a of the first wiring 200 in the peripheral region PA. The third portion 200c of the first wiring 200 can be electrically connected to the first data line DL1 in the contact portion / hole CNT in the peripheral region PA or can be electrically connected to the first data line DL1 through the contact portion / hole CNT. In an embodiment, the third portion 200c of the first wiring 200 can be electrically connected to the first data line DL1 in the contact portion / hole CNT in the display region DA or can be electrically connected to the first data line DL1 through the contact portion / hole CNT.

[0103] The third wiring 205 may have one end connected to the second data line DL2 and the other end connected to the pad of the pad region PADA. In an embodiment, the third wiring 205 may be a part of the second data line DL2 extending to the peripheral region PA. In an embodiment, the third wiring 205 may be a separate wiring arranged in a layer different from that of the second data line DL2 and may be electrically connected to the second data line DL2 in the peripheral region PA and / or the display region DA.

[0104] Figure 4 and Figure 5 Each of

[0105] Referring to Figure 4 , the pixel PX includes a pixel circuit PC and an organic light-emitting diode OLED, which is a display element connected to the pixel circuit PC. The pixel circuit PC may include a first thin-film transistor T1, a second thin-film transistor T2, and a storage capacitor Cst. The pixel PX may emit, for example, red light, green light, blue light, or white light through the organic light-emitting diode OLED.

[0106] The second thin-film transistor T2, as a switching thin-film transistor, may be connected to the scan line SL and the data line DL and may be configured to transfer the data signal input from the data line DL to the first thin-film transistor T1 according to the switching voltage input from the scan line SL. The storage capacitor Cst may be connected to the second thin-film transistor T2 and the power supply voltage line PL and may store a voltage corresponding to the difference between the voltage corresponding to the data signal received from the second thin-film transistor T2 and the first power supply voltage ELVDD supplied to the power supply voltage line PL. The power supply voltage line PL may be spaced apart in parallel from the scan line SL or the data line DL.

[0107] The first thin-film transistor T1, as a driving thin-film transistor, may be connected to the power supply voltage line PL and the storage capacitor Cst and may control the driving current flowing through the organic light-emitting diode OLED from the power supply voltage line PL in response to the voltage value stored in the storage capacitor Cst. The organic light-emitting diode OLED may include a pixel electrode and a counter electrode, and the counter electrode may receive the second power supply voltage ELVSS. The organic light-emitting diode OLED receives the driving current I OLED and emits light, thereby displaying an image.

[0108] Figure 4The figure shows a pixel circuit PC including two thin film transistors and a storage capacitor. In another embodiment, the number of thin film transistors and the number of storage capacitors can be variably changed according to the design of the pixel circuit PC.

[0109] Referring Figure 5 , signal lines (e.g., a first scan line SL1, a second scan line SL2, a third scan line SL3, an emission control line EL, and a data line DL), an initialization voltage line VIL, and a power supply voltage line PL are provided for each pixel PX. According to another embodiment, at least one of the signal lines (e.g., the first scan line SL1, the second scan line SL2, the third scan line SL3, the emission control line EL, and the data line DL), the initialization voltage line VIL, and / or the power supply voltage line PL can be shared by adjacent pixels.

[0110] The signal lines include a first scan line SL1 configured to transmit a first scan signal GW, a second scan line SL2 configured to transmit a second scan signal GI, a third scan line SL3 configured to transmit a third scan signal GB, an emission control line EL configured to transmit an emission control signal EM, and a data line DL configured to transmit a data signal DATA. The third scan line SL3 can be the second scan line SL2 of the next row, and the third scan signal GB can be the second scan signal GI of the next row.

[0111] The power supply voltage line PL is configured to transmit a first power supply voltage ELVDD to the first thin film transistor T1, and the initialization voltage line VIL is configured to transmit an initialization voltage VINT for initializing the first thin film transistor T1 and the organic light emitting diode OLED to the pixel PX.

[0112] The first scan line SL1, the second scan line SL2, the third scan line SL3, the emission control line EL, and the initialization voltage line VIL can extend in a second direction D2 and can be spaced apart from each other in each row. The data line DL and the power supply voltage line PL can extend in a first direction D1 and can be spaced apart from each other in each column.

[0113] The pixel circuit PC of the pixel PX can include a first transistor T1 to a seventh transistor T7 and a storage capacitor Cst.

[0114] The first thin film transistor T1 is connected to the power supply voltage line PL via a fifth thin film transistor T5 and is electrically connected to the organic light emitting diode OLED via a sixth thin film transistor T6. The first thin film transistor T1 serves as a driving thin film transistor and receives a data signal DATA according to the switching operation of a second thin film transistor T2 to supply a driving current I OLED to the organic light emitting diode OLED.

[0115] The second thin film transistor T2 is connected to the first scan line SL1 and the data line DL, and is turned on according to the first scan signal GW received via the first scan line SL1 to perform a switching operation for transmitting the data signal DATA transmitted via the data line DL to the node N.

[0116] The third thin film transistor T3 is connected to the organic light emitting diode OLED via the sixth thin film transistor T6. The third thin film transistor T3 is turned on according to the first scan signal GW received via the first scan line SL1 to diode-connect the first thin film transistor T1.

[0117] The fourth thin film transistor T4 is turned on according to the second scan signal GI received via the second scan line SL2 to initialize the gate voltage of the first thin film transistor T1 by transmitting the initialization voltage VINT from the initialization voltage line VIL to the gate electrode of the first thin film transistor T1.

[0118] The fifth thin film transistor T5 and the sixth thin film transistor T6 are simultaneously turned on according to the emission control signal EM received via the emission control line EL to form a current path such that the driving current I OLED can flow in the direction from the power supply voltage line PL to the organic light emitting diode OLED.

[0119] The seventh thin film transistor T7 is turned on according to the third scan signal GB received via the third scan line SL3 to initialize the organic light emitting diode OLED by transmitting the initialization voltage VINT from the initialization voltage line VIL to the organic light emitting diode OLED. According to an embodiment, the seventh thin film transistor T7 can be omitted.

[0120] Although Figure 5 the figure shows the fourth thin film transistor T4 connected to the second scan line SL2 and the seventh thin film transistor T7 connected to a separate third scan line SL3, the present disclosure is not limited thereto. According to another embodiment, the seventh thin film transistor T7 and the fourth thin film transistor T4 can be connected to the second scan line SL2.

[0121] The storage capacitor Cst can be connected to the power supply voltage line PL and the gate electrode of the first thin film transistor T1, and thus can store and maintain a voltage corresponding to the difference between the two end voltages, thereby maintaining the voltage applied to the gate electrode of the first thin film transistor T1.

[0122] The organic light emitting diode OLED can include a pixel electrode and a counter electrode, and the counter electrode can receive the second power supply voltage ELVSS. The organic light emitting diode OLED receives the driving current I from the first thin film transistor T1 OLED and emits light, thereby displaying an image.

[0123] Figures 6 to 8 Each of the diagrams shows a schematic plan view of a portion of a first wiring 200 in a display device according to an embodiment. Figure 6 is Figure 1 an enlarged plan view of region B of Figure 7 is Figure 1 an enlarged plan view of region C of Figure 8 is Figure 1 an enlarged plan view of region D of

[0124] Figures 6 to 8 The diagram shows the structure of the first wiring 200 arranged on the right side of the center line CL, and the illustrated structure can be similarly applied to the first wiring 200 arranged on the left side of the center line CL.

[0125] Referring to Figure 6 , in the first sub-region SS1, the first portion 200a of the first wiring 200 may include a first branch 211 protruding in the second direction D2. Although not illustrated, in the third sub-region SS3, the third portion 200c of the first wiring 200 may include a first branch 211 protruding in the second direction D2. The structure of the first branch 211 of the first portion 200a may be similar to or the same as that of the first branch 211 of the third portion 200c.

[0126] The first branch 211 of the first portion 200a may protrude from the main body of the first portion 200a in opposite directions (e.g., left and right directions) along the second direction D2. Two first branches 211 protruding from the main bodies of two adjacent first portions 200a toward each other may be aligned. The ends of the first branches 211 extending toward each other may be spaced apart from each other in the second direction D2 to form a gap. The gaps between the first branches 211 may be substantially aligned and / or (at substantially constant intervals) substantially regularly spaced apart in the first direction D1 and / or the second direction D2.

[0127] Referring to Figure 7 , in the second sub-region SS2, the main body of the second portion 200b of the first wiring 200 may extend in the second direction D2, and the second portion 200b may include a second branch 221 protruding from the main body of the second portion 200b. The second branch 221 may include a portion / segment extending in one or more of the first direction D1, the second direction D2, the diagonal direction D12, and the diagonal direction D21.

[0128] Two second branches 221 protruding from two adjacent second portions 200b toward each other may include aligned portions / segments. The ends of the second branches 221 extending toward each other may be spaced apart from each other in the second direction D2 to form a gap.

[0129] Reference Figure 8 In a portion where the first sub-region SS1, the second sub-region SS2, and the third sub-region SS3 of the display region DA are adjacent to each other, a first portion 200a of the first wiring 200 may be disposed in the first sub-region SS1, a second portion 200b of the first wiring 200 may be disposed in the second sub-region SS2, and a third portion 200c of the first wiring 200 may be disposed in the third sub-region SS3.

[0130] The first portion 200a of the first wiring 200 may include a first branch 211 extending in the second direction D2, the second portion 200b of the first wiring 200 may include a second branch 221, and the third portion 200c of the first wiring 200 may include a first branch 211 extending in the second direction D2. The second branch 221 may include a partial segment extending in one or more of the first direction D1, the second direction D2, the diagonal direction D12, and the diagonal direction D21.

[0131] End segments of two first branches 211 protruding toward each other from two adjacent first conductors 200 may be spaced apart in the second direction D2 and may be aligned in the second direction D2 along the first axis 11. End segments of two second branches 221 protruding toward each other from two adjacent first conductors 200 may be spaced apart in the second direction D2 and may be aligned in the second direction D2 along the first axis 11.

[0132] End edges of two first branches 211 facing each other may be aligned with end edges of two second branches 221 facing each other along the second axis 12 in the first direction D1, respectively.

[0133] If the disconnection direction of the end of the first branch 211 is different from the disconnection direction of the end of the second branch 221, a significant difference in reflectance may occur. Therefore, when external light is irradiated on the display panel 10, the first sub-region SS1, the second sub-region SS2, and the third sub-region SS3 are undesirably visible to the user.

[0134] To solve the above problems, the spacing direction of the end of the first branch 211 may be configured to be consistent with the spacing direction of the end of the second branch 221, and the opposite end edges of the first branch 211 may be aligned with the opposite end edges of the second branch 221. Accordingly, the difference in light reflected (or scattered) at the end of the first branch 211 and the end of the second branch 221 may be minimized. Advantageously, the difference between the first sub-region SS1, the second sub-region SS2, and the third sub-region SS3 may be invisible or not obvious to the user.

[0135] Figure 9The figure shows a schematic plan view of a fourth wiring 250 in a display device according to an embodiment. Figure 9 is Figure 1 an enlarged plan view of region E of.

[0136] The fourth wiring 250 may be arranged in the same layer as the first wiring 200 and may be arranged in the second region S2. The fourth wiring 250 may include the same material as the first wiring 200. The fourth wiring 250 may be spaced apart from and electrically separated / isolated from the first wiring 200. The fourth wiring 250 extends in the second direction D2, and the fourth wiring 250 may include a third branch 251 protruding from the main body of the fourth wiring 250. The third branch 251 may include a portion / segment extending in one or more of the first direction D1, the second direction D2, the diagonal direction D12, and the diagonal direction D21.

[0137] Two third branches 251 protruding toward each other from two adjacent fourth wirings 250 may have aligned and spaced-apart segments. To prevent interference / disturbance between the fourth wirings 250, in the plan view of the display device / panel 10, the end segments of the third branches 251 extending toward each other may be spaced apart from each other with an intermediate gap in the second direction D2. The fourth wirings 250 may be connected to each other in the peripheral region PA. The fourth wirings 250 may be integrally formed.

[0138] Referring to Figures 6 to 9 , a conductive pattern / component may be further arranged in the same layer as the first wiring 200 and the fourth wiring 250. The conductive pattern may include a first pattern 230. The first pattern 230 may be used as a shielding electrode to prevent signal interference between a circuit element arranged on the first side of the first pattern 230 and a pixel electrode arranged on the second side of the first pattern 230. The first pattern 230 may be electrically connected to a power voltage line PL connected to the pixel PX and may thus receive a first power voltage ELVDD. The conductive pattern may include a second pattern 240. The second pattern 240 may be used as a bridge electrode to connect a circuit element arranged on the first side of the second pattern 240 and a pixel electrode arranged on the second side of the second pattern 240 to each other.

[0139] The first pattern 230 may be physically and electrically separated from the first wiring 200 and the fourth wiring 250. Each of the first patterns 230 in the second region S2 may be connected to the third branch 251 of the fourth wiring 250 through at least one bridge. In an embodiment, the fourth wiring 250, the first pattern 230, and the bridge arranged in the second region S2 may be integrally formed. The fourth wiring 250 arranged in the second region S2 may receive the first power voltage ELVDD from the power voltage line PL via one or more of the first patterns 230.

[0140] The fourth wirings 250 disposed in the second region S2 extend in the second direction D2 and are spaced apart from each other. In an embodiment, the fourth wirings 250 may have an interconnected grid structure.

[0141] Figure 10A is a plan view of a branch having end segments spaced apart in the same direction according to an embodiment. Figure 10B is a plan view of a branch having end segments spaced apart in different directions according to a comparative example.

[0142] Referring to Figure 10B , the ends of the two first branches 211' are spaced apart in the second direction D2, and the ends of the two second branches 221' are spaced apart in the first direction D1. When the user obliquely (e.g., at a 45-degree angle with respect to the main surface of the substrate) observes the first branch 211' and the second branch 221' in each of the east direction DE, west direction DW, south direction DS, and north direction DN, the light reflected (or scattered) from the end surface of the first branch 211' and the light reflected (or scattered) from the end surface of the second branch 221' may cause a difference in reflectance. In the comparative example, for different wiring portions, the number / density of the end surfaces visible in each direction may be different; thus, the first sub-region SS1, the second sub-region SS2, and the third sub-region SS3 may be undesirably visible.

[0143] Referring to Figure 10A , the opposite end segments of the first branch 211 and the opposite end segments of the second branch 221 are spaced apart in the same direction. Therefore, when the user obliquely (e.g., at a 45-degree angle with respect to the main surface of the substrate) observes the first branch 211 and the second branch 221 in each of the east direction DE, west direction DW, south direction DS, and north direction DN, the light reflected (or scattered) from the end surface of the first branch 211 and the light reflected (or scattered) from the end surface of the second branch 221 may not cause a significant difference in reflectance. Thus, the light reflection (or scattering) characteristics may be substantially uniform in the first region S1. Advantageously, the distinction between the first sub-region SS1, the second sub-region SS2, and the third sub-region SS3 may be desirably invisible or not obvious.

[0144] Figures 11 to 13 Each of Figure 11 is Figure 1 an enlarged plan view of region B of Figure 12 is Figure 1 an enlarged plan view of region C of Figure 13 is Figure 1 an enlarged plan view of region D of

[0145] Figures 11 to 13 The figure shows the structure of the first wiring 200 arranged on the right side of the center line CL, and the illustrated structure can be similarly applied to the first wiring 200 arranged on the left side of the center line CL.

[0146] Figures 11 to 13 The illustrated structure is different from Figures 6 to 8 the illustrated structure in that, in the plan view of the display device / panel 10, the end edges of the first branch 211 and the second branch 221 are inclined and oriented in the diagonal direction D12 (between the first direction D1 and the second direction D2). Some descriptions associated with Figures 6 to 8 can be applied to Figures 11 to 13 and will not be repeated.

[0147] Referring to Figure 11 , the first part 200a of the first wiring 200 in the first sub-region SS1 may include a first branch 211 protruding in the second direction D2. The first branch 211 may be aligned in the second direction D2. The end edges of the first branch 211 facing each other may be inclined and may extend in the diagonal direction D12. For example, the end edges of the first branch 211 may be oriented at approximately 45 degrees with respect to the first direction D1. The end surfaces 211S of the first branch 211 may be misaligned and may be parallel to each other. The positions of the gaps between the opposing first branches 211 may be substantially aligned in the first direction D1 and may be positioned at regular intervals in the first direction D1 and / or the second direction D2.

[0148] Referring to Figure 12 , the second part 200b of the first wiring 200 in the second sub-region SS2 extends in the second direction D2, and the second part 200b may include a second branch 221 protruding from the main body of the second part 200b. The end edges of the second branch 221 facing each other may be spaced apart in the first direction D1. In the plan view of the display device / panel 10, the end edges of the second branch 221 facing each other may be inclined and may extend in the diagonal direction D12 (between the first direction D1 and the second direction D2). The end edges of the second branch 221 may be inclined at an angle with respect to the longitudinal direction of the second part 200b. For example, the end edges of the second branch 221 may be oriented at approximately 45 degrees with respect to the second direction D2. The end surfaces 221S of the second branch 221 may be misaligned and may be parallel to each other. The positions of the gaps between the second branches 221 may be substantially aligned in the first direction D1 and / or the second direction D2 and may be positioned at regular intervals in the first direction D1 and / or the second direction D2.

[0149] Referring toFigure 13 The end segments of the two first branches 211 protruding from two adjacent first portions 200a towards each other can be spaced apart in the second direction D2. In a plan view of the display device / panel 10, the facing end edges of the first branches 211 can be inclined and can extend in the diagonal direction D12. The end surfaces 211S of the first branches 211 can be misaligned and can be parallel to each other.

[0150] The end segments of the two second branches 221 protruding from two adjacent second portions 200b towards each other can be spaced apart in the first direction D1. In a plan view of the display device / panel 10, the facing end edges of the second branches 221 can be inclined and can extend in the diagonal direction D12. The end edges of the second branches 221 can be oriented at a certain acute angle with respect to the longitudinal direction of the second portion 200b.

[0151] The gap between the end segments of the first branches 211 spaced apart in the second direction D2 can be substantially aligned with the gap between the end segments of the second branches 221 spaced apart in the first direction D1 along a second axis 12 extending in the first direction D1. The gap between the first branches 211 can be substantially aligned along a first axis 11 extending in the second direction D2.

[0152] Since the ends of the first branches 211 and the second branches 221 of the first wiring 200 have diagonal edges, and the gap between the facing end segments of the first branches 211 is substantially aligned with the gap between the facing end segments of the second branches 221, the reflectance of the light reflected (or scattered) from the end surfaces of the first branches 211 and the end surfaces of the second branches 221 can be substantially uniform; thus, the visibility of the difference between the first sub-region SS1, the second sub-region SS2, and the third sub-region SS3 can be prevented or reduced.

[0153] Figure 14 The figure shows a schematic plan view of a fourth wiring 250 in a display device according to an embodiment. Figure 14 is Figure 1 an enlarged plan view of region E of

[0154] Figure 14 The structure of Figure 9 differs from the structure of Figure 9 in that, in a plan view of the display device / panel 10, the end segments of the third branch 251 have diagonal edges extending in the diagonal direction D12. Figure 14 The description of some components / features of

[0155] can be applied to Figure 14, the end segments of the third branches 251 protruding toward each other from two adjacent fourth wirings 250 in the second region S2 can be substantially aligned in the first direction D1 and can be spaced apart from each other in the first direction D1 to form a gap. The facing end edges of the third branches 251 can be inclined and can extend in the diagonal direction D12. The end edges of the third branches 251 can be oriented at approximately 45 degrees with respect to the second direction D2. The end surfaces 251S of the third branches 251 can be misaligned (i.e., non-coplanar) and can be parallel to each other. The position of the gap between the third branches 251 can be substantially aligned in the first direction D1 and / or in the second direction D2 and can be positioned at regular intervals in the first direction D1 and / or in the second direction D2. The fourth wirings 250 can be connected to each other in the peripheral region PA. The fourth wirings 250 can be integrally formed.

[0156] Figure 15 The figure shows a schematic plan view of the first wiring 200 in a display device according to an embodiment.

[0157] Figure 15 The structure of Figure 13 differs from the structure of Figure 13 in that, compared with Figure 15 , in Figure 13 , the gap between the facing end edges of the first branches 211 is positioned closer to the gap between the facing end edges of the second branches 221. Figure 15 The description of some components / features of

[0158] can be applicable to some components / features of Figure 15 and may not be repeated.

[0159] Figure 16A is a plan view of a branch having diagonal end edges according to an embodiment. Figure 16B is a plan view of a branch having vertical or horizontal end edges according to a comparative example.

[0160] Referring to Figure 16B, the first branch 211' has a vertical end surface in the second direction D2, and the second branch 221' has a horizontal end surface in the first direction D1. When the user obliquely observes the first branch 211' and the second branch 221' in each of the four directions DE, DW, DS, and DN (for example, at an angle of 45 degrees with respect to the main surface of the substrate), the light reflected (or scattered) from the end surface of the first branch 211' and the light reflected (or scattered) from the end surface of the second branch 221' may cause a significant difference in reflectance. Therefore, the first sub-region SS1, the second sub-region SS2, and the third sub-region SS3 may be unexpectedly visible.

[0161] Referring to Figure 16A , the ends of the first branch 211 and the second branch 221 of the first wiring 200 have diagonal edges. When the user obliquely observes the first branch 211 and the second branch 221 in each of the four directions DE, DW, DS, and DN (for example, at an angle of 45 degrees with respect to the main surface of the substrate), the light reflected (or scattered) from the end surface 211S of the first branch 211 and the end surface 221S of the second branch 221 may not cause a significant difference in reflectance. Advantageously, the difference between the first sub-region SS1, the second sub-region SS2, and the third sub-region SS3 according to the incident angle of light may be unexpectedly invisible or not obvious.

[0162] Figure 17 and Figure 18 each of which is a schematic plan view of a part of a display panel according to an embodiment, and Figure 19 is a cross-sectional view of the display panel taken along the line I-I' of Figure 1 .

[0163] Figure 17 is a plan view of the arrangement of the first wiring 200 and the pixel electrode PE according to an embodiment, Figure 18 is a plan view of the arrangement of the fourth wiring 250 and the pixel electrode PE according to an embodiment, and Figure 19 shows a stacked structure of some components included in a pixel arranged in the display area DA of the substrate 100 and some wirings connected to the pixel. Figure 19 is related to Figure 5 a cross-sectional view of a part corresponding to the first thin film transistor T1, the sixth thin film transistor T6, the storage capacitor Cst, and the organic light emitting diode OLED illustrated in

[0164] The substrate 100 may mainly include SiO 2or a glass material of a polymer resin. The polymer resin may include polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, or cellulose acetate propionate. The substrate 100 including the polymer resin may be flexible, rollable, or bendable. The substrate 100 may have a multilayer structure including a layer having the above polymer resin and an inorganic layer (not shown). The buffer layer 110 may be disposed on the substrate 100.

[0165] The buffer layer 110 may have a single-layer or multilayer structure including an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride. A barrier layer (not shown) for preventing external air penetration may be further included between the substrate 100 and the buffer layer 110. The buffer layer 110 may be omitted.

[0166] The first thin-film transistor T1 and the sixth thin-film transistor T6 may be disposed on the buffer layer 110. The first thin-film transistor T1 may include a semiconductor layer Act1, a gate electrode GE1, a source electrode SE1, and a drain electrode DE1. The sixth thin-film transistor T6 may include a semiconductor layer Act6, a gate electrode GE6, a source electrode SE6, and a drain electrode DE6.

[0167] The semiconductor layer Act1 of the first thin-film transistor T1 and the semiconductor layer Act6 of the sixth thin-film transistor T6 may include amorphous silicon, polysilicon, or an organic semiconductor material. Each of the semiconductor layers Act1 and Act6 may include a source region, a drain region, and a channel region between the source region and the drain region. The first insulating layer 111 may be located on the semiconductor layers Act1 and Act6.

[0168] By considering the adhesion to adjacent layers, the surface flatness of the layer to be stacked, and processability, the gate electrodes GE1 of the first thin-film transistor T1 and GE6 of the sixth thin-film transistor T6 may include, for example, a single layer or multiple layers containing one or more of aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), titanium (Ti), tungsten (W), and copper (Cu). The second insulating layer 112 may be disposed on the gate electrodes GE1 and GE6.

[0169] The source electrode SE1 and the drain electrode DE1 of the first thin film transistor T1, and the source electrode SE6 and the drain electrode DE6 of the sixth thin film transistor T6 may include, for example, a single layer or multiple layers containing one or more of aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), titanium (Ti), tungsten (W), and copper (Cu). The source electrodes SE1 and SE6 and the drain electrodes DE1 and DE6 may be electrically connected to the source regions and drain regions of the semiconductor layers Act1 and Act6 respectively via contact holes formed in the first insulating layer 111, the second insulating layer 112, and the third insulating layer 113. The drain electrode DE1 of the first thin film transistor T1 and the source electrode SE6 of the sixth thin film transistor T6 may be connected to each other.

[0170] The storage capacitor Cst includes a lower electrode LE and an upper electrode UE that overlap each other, with the second insulating layer 112 therebetween. The storage capacitor Cst may overlap with the first thin film transistor T1. Figure 19 The figure shows that the gate electrode GE1 of the first thin film transistor T1 is the lower electrode LE of the storage capacitor Cst. According to another embodiment, the storage capacitor Cst may not overlap with the first thin film transistor T1, and the lower electrode LE of the storage capacitor Cst may be an independent component separated from the gate electrode GE1 of the first thin film transistor T1. The upper electrode UE of the storage capacitor Cst may include a single layer or multiple layers containing one or more of aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), titanium (Ti), tungsten (W), and copper (Cu). The storage capacitor Cst may be covered by the third insulating layer 113.

[0171] The first insulating layer 111, the second insulating layer 112, and the third insulating layer 113 may include at least one inorganic insulating material selected from the group including silicon oxide (SiO 2 ), silicon nitride (SiN x ), silicon oxynitride (SiON), aluminum oxide (Al 2 O 3 ), titanium oxide (TiO 2 ), tantalum oxide (Ta 2 O 5 ), hafnium oxide (HfO 2 ), and zinc oxide (ZnO 2 ). The first insulating layer 111, the second insulating layer 112, and the third insulating layer 113 may include a single layer or multiple layers containing the above inorganic insulating materials.

[0172] Various conductive layers may be further disposed on the third insulating layer 113. For example, data lines DL and power supply voltage lines PL may be disposed on the third insulating layer 113, that is, on the same layer as the source electrodes SE1 and SE6 and the drain electrodes DE1 and DE6. The data lines DL and the power supply voltage lines PL may include aluminum (Al), copper (Cu), titanium (Ti), etc., and may include multiple layers or a single layer. In an embodiment, the data lines DL and the power supply voltage lines PL may have a multi-layer structure of Ti / Al / Ti.

[0173] A fourth insulating layer 114 may be disposed on the data lines DL and the power supply voltage lines PL.

[0174] A first wiring 200 may be disposed on the fourth insulating layer 114. The first wiring 200 may include a single film or a multi-layer film containing at least one of aluminum (Al), copper (Cu), titanium (Ti), and their alloys. In an embodiment, the first wiring 200 may have a multi-layer structure of Ti / Al / Ti. The fourth wiring 250 may at least partially overlap with the power supply voltage line PL. A first pattern 230 and a second pattern 240 may be further disposed on the fourth insulating layer 114. The first pattern 230 and the second pattern 240 may include the same material as the fourth wiring 250. The second pattern 240 may be used as a connecting member configured to electrically connect the sixth thin film transistor T6 and the organic light emitting diode OLED to each other.

[0175] A fifth insulating layer 115 may be disposed on the fourth wiring 250, the first pattern 230, and the second pattern 240. The fourth insulating layer 114 and the fifth insulating layer 115 as planarizing insulating layers may be organic insulating layers. The fourth insulating layer 114 and the fifth insulating layer 115 may include organic insulating materials, such as general commercial polymers such as poly(methyl methacrylate) (PMMA) or polystyrene (PS), polymer derivatives having phenolic groups, acrylic polymers, imide polymers, aryl ether polymers, amide polymers, fluorine polymers, parylene polymers, vinyl alcohol polymers, and their blends. According to an embodiment, the fourth insulating layer 114 and the fifth insulating layer 115 may include polyimide.

[0176] The organic light emitting diode OLED may be disposed on the fifth insulating layer 115 as a display element. The organic light emitting diode OLED may include a pixel electrode PE, an emission layer EL, and a counter electrode CE.

[0177] The pixel electrode PE may be disposed on the fifth insulating layer 115, and may include a conductive oxide, such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In 2 O 3) Indium gallium oxide (IGO) or aluminum zinc oxide (AZO). According to another embodiment, the pixel electrode PE may include a reflective film containing silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or a compound thereof. According to another embodiment, the pixel electrode PE may further include a film on / under the above reflective film, and the film includes ITO, IZO, ZnO, or In 2 O 3 . The pixel electrode PE may be electrically connected to the source electrode SE6 or the drain electrode DE6 of the sixth thin film transistor T6 via the second pattern 240 disposed on the fourth insulating layer 114.

[0178] The shielding member 150 may be further disposed on the fifth insulating layer 115. In a plan view, the shielding member 150 may extend along a part of the edge of the pixel electrode PE in the second direction D2 without overlapping with the pixel electrode PE, and may be disposed on the upper side or the lower side of each row. The shielding member 150 may extend linearly or in a zigzag manner in the second direction D2 according to the arrangement of the pixel electrodes PE in the same row. The shielding member 150 may include a light-shielding metal. For example, the shielding member 150 may include aluminum (Al), copper (Cu), titanium (Ti), etc., and may include a multi-layer or a single layer containing the above materials. According to an embodiment, the shielding member 150 may have a multi-layer structure of Ti / Al / Ti. The shielding member 150 may include the same material as the pixel electrode PE. The shielding members 150 may be spaced apart from each other and may be provided independently for each row. The shielding member 150 may be floating or may be electrically connected to a constant voltage wiring (e.g., a power supply voltage line, an initialization voltage line, etc.) to receive a constant voltage.

[0179] The sixth insulating layer 116 may be disposed on the fifth insulating layer 115. The sixth insulating layer 116 may have an opening OP corresponding to each pixel and exposing a part of the pixel electrode PE. The sixth insulating layer 116 may serve as a pixel defining layer. The sixth insulating layer 116 may include an organic material such as acrylic, benzocyclobutene (BCB), polyimide, or hexamethyldisiloxane (HMDSO). The sixth insulating layer 116 may include an inorganic material. The opening OP of the sixth insulating layer 116 and / or the area exposed by the opening OP (including a part of the pixel electrode PE) may be defined as an emission area EA. The emission layer EL may be disposed in the emission area EA. The sizes of the first emission area EA1 of the first pixel, the second emission area EA2 of the second pixel, and the third emission area EA3 of the third pixel may be different from each other. A column in which the first emission area EA1 and the third emission area EA3 are alternately repeated in the first direction D1 and a column in which the second emission area EA2 is repeated are repeated in the second direction D2. That is, the first emission area EA1, the second emission area EA2, the third emission area EA3, and the second emission area EA2 are repeated in the second direction D2.

[0180] Near the emission area EA is a non-emission area NEA, and the non-emission area NEA may surround the emission area EA. The display area DA may include the emission area EA and may include the non-emission area NEA surrounding the emission area EA.

[0181] The emission layer EL may be disposed above the pixel electrode PE exposed by the opening OP of the sixth insulating layer 116. The emission layer EL may include a polymer or a low molecular weight organic material that emits light of a specific color. The emission layer EL may be a red emission layer, a green emission layer, or a blue emission layer. Alternatively, the emission layer EL may have a multilayer structure in which a red emission layer, a green emission layer, and a blue emission layer are stacked to emit white light, or may have a single layer structure including a red emission material, a green emission material, and a blue emission material. According to an embodiment, a first functional layer FL1 below the emission layer EL and / or a second functional layer FL2 above the emission layer EL may be further included. The first functional layer FL1 and / or the second functional layer FL2 may include an integral layer above the pixel electrode PE, or may include a layer patterned to correspond to each of the pixel electrodes PE.

[0182] The first functional layer FL1 may include a single layer or multiple layers. For example, when the first functional layer FL1 includes a polymer material, the first functional layer FL1 may be a hole transport layer (HTL) having a single-layer structure and may include poly(3,4-ethylenedioxythiophene) (PEDOT) or polyaniline (PANI). When the first functional layer FL1 includes a low molecular weight material, the first functional layer FL1 may include a hole injection layer (HIL) and an HTL.

[0183] The second functional layer FL2 may be omitted. For example, when the first functional layer FL1 and the emission layer EL include polymer materials, the second functional layer FL2 may be formed to improve the characteristics of the organic light emitting diode OLED. The second functional layer FL2 may include a single layer or multiple layers. The second functional layer FL2 may include an electron transport layer (ETL) and / or an electron injection layer (EIL).

[0184] The counter electrode CE faces the pixel electrode PE, where the emission layer EL is located between the electrode CE and the PE. The counter electrode CE may include a conductive material having a low work function. For example, the counter electrode CE may include a (semi)transparent layer containing silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca) or an alloy thereof. Alternatively, the counter electrode CE may further include a layer such as ITO, IZO, ZnO or In 2 O 3 of. The counter electrode CE may be disposed above the emission layer EL and the sixth insulating layer 116. The counter electrode CE may provide a common voltage for a plurality of organic light emitting diodes OLEDs in the display area DA and may overlap with the pixel electrode PE.

[0185] The encapsulation layer 300 may be disposed on the organic light emitting diode OLED. The encapsulation layer 300 may include: an inorganic encapsulation layer including at least one inorganic material and an organic encapsulation layer including at least one organic material. The organic encapsulation layer may be thicker than the inorganic encapsulation layer. In some embodiments, the encapsulation layer 300 may have a stacked structure of a first inorganic encapsulation layer / organic encapsulation layer / second inorganic encapsulation layer. The inorganic materials of the first inorganic encapsulation layer and the second inorganic encapsulation layer may be the same as or different from each other. The first inorganic encapsulation layer may have a two-layer structure including different inorganic materials. A cover layer covering the counter electrode CE may be further disposed between the counter electrode CE of the organic light emitting diode OLED and the encapsulation layer 300. In another embodiment, a sealing substrate (not shown) may be disposed on the organic light emitting diode OLED to face the substrate 100 and may be bonded to the substrate 100 outside the display area DA by a sealing member such as a sealant or a frit.

[0186] According to an embodiment, in a display area of a display device, a spacing direction of opposite ends of a first branch 211 of a first wiring 200 may be aligned with a spacing direction of opposite ends of a second branch 221 of the first wiring 200. An end edge of the second branch 221 may be aligned with or parallel to an end edge of the first branch 211. A gap between the first branches 211 may be substantially aligned with a gap between the second branches 221. Accordingly, a light reflection characteristic may be substantially uniform at the display area of the display device. Advantageously, the first wiring 200 may be invisible or unobtrusive to a user of the display device.

[0187] According to an embodiment, a peripheral area of the display device may be minimized.

[0188] The above-described exemplary embodiments should be considered in an illustrative sense and not for purposes of limitation. Descriptions of features associated with each embodiment may apply to one or more other embodiments. Various changes in form and detail may be made in the exemplary embodiments without departing from the scope defined by the appended claims.

Claims

1. A display device, comprising: a substrate including a display area and a peripheral area outside the display area; a first data line extending longitudinally in a first direction and disposed in the display area; a first wiring disposed in the display area; and a driving circuit disposed in the peripheral area and electrically connected to the first data line through the first wiring, wherein branches protrude from a main body of the first wiring, wherein two of the branches protrude toward each other, wherein end edges of the two branches are spaced apart in a second direction different from the first direction, wherein a first portion of the first wiring is respectively connected to a third portion of the first wiring through a second portion of the first wiring, and wherein the second portion of the first wiring extends longitudinally in the second direction, is not aligned with the first portion of the first wiring, and is not aligned with the third portion of the first wiring, wherein a first branch protrudes from the first portion of the first wiring and from the third portion of the first wiring, and wherein a second branch protrudes from the second portion of the first wiring, and wherein end edges of two second branches of the second branch are spaced apart in the second direction.

2. The display device according to claim 1, wherein two first branches of the first branch protrude toward each other, and wherein end edges of the two first branches are spaced apart in the second direction.

3. The display device according to claim 2, wherein the end edges of the two first branches are respectively aligned with the end edges of the two second branches.

4. The display device according to claim 1, further comprising: a second data line disposed in the display area; a second wiring disposed in the peripheral area and electrically isolated from the second data line; and a third wiring disposed in the peripheral area and electrically isolated from the second wiring.

5. The display device according to claim 4, wherein the second wiring is respectively electrically connected to the first data line through the first wiring.

6. The display device according to claim 5, wherein the first wiring and the first data line are disposed on different layers from each other.

7. The display device according to claim 4, wherein the third wiring is respectively electrically connected to the second data line.

8. The display device according to claim 7, wherein the third wiring and the second data line are disposed on different layers from each other.

9. The display device according to claim 1, further comprising: a fourth wiring disposed in the display area, wherein the fourth wiring is electrically isolated from the first wiring.

10. The display device according to claim 9, wherein a third branch protrudes from a main body of the fourth wiring, wherein end edges of two third branches of the third branch are spaced apart in the second direction.

11. A display device, comprising: a substrate including a display area and a peripheral area outside the display area; a first data line extending longitudinally in a first direction and disposed in the display area; The first wiring is disposed in the display area; and a driving circuit is disposed in the peripheral area and is electrically connected to the first data line through the first wiring, wherein a branch protrudes from a main body of the first wiring, wherein an end edge of the branch is inclined with respect to the first direction, wherein a first portion of the first wiring is connected to a third portion of the first wiring through a second portion of the first wiring respectively, and wherein the second portion of the first wiring is longitudinal in a second direction different from the first direction, is not aligned with the first portion of the first wiring, and is not aligned with the third portion of the first wiring, wherein a first branch protrudes from the first portion of the first wiring and from the third portion of the first wiring, and wherein a second branch protrudes from the second portion of the first wiring, wherein two first branches among the first branches protrude toward each other, and wherein end edges of the two first branches are spaced apart in the second direction, wherein two second branches among the second branches protrude toward each other, and wherein end edges of the two second branches are spaced apart in the first direction, and wherein a gap between the end edges of the two first branches is aligned with a gap between the end edges of the two second branches in the first direction.

12. The display device according to claim 11, wherein the end edges of the branch are parallel to each other.

13. The display device according to claim 11, wherein the end edge of the first branch is inclined with respect to the first direction, and wherein the end edge of the second branch is inclined with respect to the first direction.

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