Display device

Abstract

Embodiments of the present application provide a display device, a display panel of the display device includes a display area and a non-display area located at least one side of the display area, the display panel further includes a thin film transistor array substrate, the thin film transistor array substrate includes a plurality of signal lines and a plurality of color resist, the signal lines extend from the display area to the non-display area, the plurality of signal lines includes at least one first signal line, at least a part of the color resist is located in the non-display area, the plurality of color resist includes a first color resist and a second color resist, the first color resist and the second color resist are adjacent, in the thickness direction of the display panel, the first color resist covers a first part of the first signal line, a part of the second color resist away from one side of the boundary line between the display area and the non-display area protrudes towards the first color resist, and the part of the second color resist protruding towards the first color resist covers a second part of the first signal line. The technical scheme of the present application avoids the overlap of the color resist missing area and the signal line, and reduces the occurrence rate of data line open circuit defects.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically to a display device. Background Technology

[0002] The liquid crystal display panel includes a display area and a non-display area, and signal lines are provided in the non-display area. In order to improve the display effect at the edge of the display area, reduce the terrain difference at the edge of the display area, and enhance the light-blocking effect, the red, green and blue color resists in the display area extend into the non-display area and overlap with the blue color resist filling the non-display area.

[0003] During the manufacturing process of LCD panels, the color resist layer needs to be patterned through an etching process. When the etching amount is large, the red, green, and blue color resists located at the edges of the non-display areas receive relatively more etching. In this case, areas that cannot be completely covered by the color resist can easily appear at the boundaries between adjacent color resists, forming areas with missing color resist.

[0004] In the thin-film transistor array substrate of a liquid crystal display panel, a transparent conductive layer and a metal layer are disposed beneath the color resist layer. An organic protective layer is disposed between the color resist layer and the transparent conductive layer. When a color resist missing area appears at the boundary between adjacent color resist layers, the organic protective layer beneath the missing area loses the protection of the color resist layer. In subsequent manufacturing processes, this organic protective layer is prone to peeling off, resulting in direct contact between the transparent conductive layer and the metal layer.

[0005] When the transparent conductive layer comes into direct contact with the metal layer, a short circuit occurs. The abnormal current generated by the short circuit can cause the signal line to burn out, which in turn can lead to a broken data line and affect the normal display of the LCD panel.

[0006] Therefore, it is necessary to propose a new technical solution to solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this application is to provide a display device that solves the technical problem of data cable breakage and malfunction in traditional display devices.

[0008] This application provides a display device, the display device including a display panel, the display panel including a display area and a non-display area located on at least one side of the display area, the display panel further including a thin-film transistor array substrate, the thin-film transistor array substrate including: a plurality of signal lines extending from the display area to the non-display area, the plurality of signal lines including at least one first signal line; and a plurality of color resists, at least a portion of the color resists located in the non-display area, the plurality of color resists including a first color resist and a second color resist, the first color resist and the second color resist being adjacent, in the thickness direction of the display panel, the first color resist covering a first portion of the first signal line, a portion of the second color resist on the side away from the boundary line between the display area and the non-display area protruding toward the first color resist, the portion of the second color resist protruding toward the first color resist covering a second portion of the first signal line.

[0009] In the above-described display device, the edge of the second color resist facing the first color resist includes a first edge segment and a second edge segment. The first edge segment is connected to the second edge segment. The extension direction of the first edge segment is perpendicular to the boundary line. The second edge segment is inclined relative to the first edge segment toward the first color resist. The second edge segment intersects with the first signal line.

[0010] In the above-described display device, the first signal line in the non-display area includes a first trace segment, a second trace segment, and a third trace segment connected in sequence. The extension direction of the first trace segment is perpendicular to the boundary line, the extension direction of the second trace segment is parallel to the boundary line, the extension direction of the third trace segment is perpendicular to the boundary line, and the second edge segment intersects with the third trace segment.

[0011] In the above-mentioned display device, the second color resist overlaps with the first color resist at the second edge segment.

[0012] In the above-described display device, the plurality of signal lines further include a second signal line, wherein in the thickness direction of the display panel, the second color resist covers a first portion of the second signal line; the plurality of color resists further include a third color resist, wherein the third color resist is located on the side of the second color resist away from the first color resist, a portion of the side of the third color resist away from the boundary line protrudes toward the second color resist, and the portion of the third color resist protruding toward the second color resist covers a second portion of the second signal line.

[0013] In the above-described display device, the edge of the third color resistor facing the second color resistor includes a fifth edge segment and a sixth edge segment. The fifth edge segment is connected to the sixth edge segment. The extension direction of the fifth edge segment is perpendicular to the boundary line. The sixth edge segment is inclined relative to the fifth edge segment towards the second color resistor. The sixth edge segment intersects with the second signal line.

[0014] In the above-described display device, the second signal line in the non-display area includes a fourth trace segment, a fifth trace segment, and a sixth trace segment connected in sequence. The extension direction of the fourth trace segment is perpendicular to the boundary line, the extension direction of the fifth trace segment is parallel to the boundary line, the extension direction of the sixth trace segment is perpendicular to the boundary line, and the sixth edge segment intersects with the sixth trace segment.

[0015] In the above-mentioned display device, the third color resist overlaps with the second color resist at the sixth edge segment.

[0016] In the above-mentioned display device, the plurality of signal lines also include a third signal line. In the thickness direction of the display panel, the third color resist covers a first portion of the third signal line, and the portion of another first color resist among the plurality of color resists protruding toward the third color resist covers a second portion of the third signal line.

[0017] In the above-mentioned display device, the third signal line in the non-display area includes a seventh trace segment, an eighth trace segment, and a ninth trace segment connected in sequence. The extension direction of the seventh trace segment is perpendicular to the boundary line, the extension direction of the eighth trace segment is parallel to the boundary line, and the extension direction of the ninth trace segment is perpendicular to the boundary line. The edge of the other first color resist intersects with the ninth trace segment.

[0018] In the above-described display device, a portion of the first color resist on one side away from the boundary line between the display area and the non-display area protrudes toward another third color resist among the plurality of color resists, and the portion of the first color resist protruding toward the other third color resist covers a portion of another third signal line among the plurality of signal lines.

[0019] In the above-described display device, the edge of the first color resist facing the other third color resist includes a third edge segment and a fourth edge segment, the third edge segment is connected to the fourth edge segment, the extension direction of the third edge segment is perpendicular to the boundary line, and the fourth edge segment is inclined relative to the third edge segment towards the other third color resist.

[0020] In the aforementioned display device, the first color resist and the other third color resist overlap at the fourth edge segment.

[0021] In the aforementioned display device, the plurality of color resists further includes a third color resist located on the side of the second color resist away from the first color resist; the edge of the second color resist facing the first color resist includes a first edge segment and a second edge segment, the first edge segment being connected to the second edge segment; the edge of the third color resist facing the second color resist includes a fifth edge segment and a sixth edge segment, the fifth edge segment being connected to the sixth edge segment; the edge of the first color resist facing another third color resist includes a third edge segment and a fourth edge segment, the third edge segment being connected to the fourth edge segment; the first connection point where the third edge segment and the fourth edge segment connect is at a first distance greater than or equal to 20 micrometers from the boundary line; the second connection point where the first edge segment and the second edge segment connect is at a second distance greater than or equal to 20 micrometers from the boundary line; and the third connection point where the fifth edge segment and the sixth edge segment connect is at a third distance greater than or equal to 20 micrometers from the boundary line.

[0022] In the above-mentioned display device, the first distance, the second distance, and the third distance are equal.

[0023] In the above-mentioned display device, the first distance, the second distance, and the third distance are not equal to each other.

[0024] In the above-mentioned display device, the first distance is 30 micrometers to 70 micrometers, the second distance is 70 micrometers to 110 micrometers, and the third distance is 80 micrometers to 120 micrometers.

[0025] In the aforementioned display device, the first signal line in the non-display area includes a first trace segment, a second trace segment, and a third trace segment connected in sequence. The extension direction of the first trace segment is perpendicular to the boundary line, the extension direction of the second trace segment is parallel to the boundary line, and the extension direction of the third trace segment is perpendicular to the boundary line. The plurality of signal lines also include a second signal line, which in the non-display area includes a fourth trace segment, a fifth trace segment, and a sixth trace segment connected in sequence. The extension direction of the fourth trace segment is perpendicular to the boundary line, the extension direction of the fifth trace segment is parallel to the boundary line, and the extension direction of the sixth trace segment is perpendicular to the boundary line. The plurality of signal lines also include a third signal line, which in the non-display area includes a seventh trace segment connected in sequence. The seventh, eighth, and ninth routing segments are defined as follows: the extension direction of the seventh routing segment is perpendicular to the boundary line; the extension direction of the eighth routing segment is parallel to the boundary line; and the extension direction of the ninth routing segment is perpendicular to the boundary line. The straight lines containing the second, fifth, and eighth routing segments are collinear. In a direction perpendicular to the boundary line, one of the second, fifth, and eighth routing segments is located between the boundary line and one of the first, second, and third connection points, or one of the second, fifth, and eighth routing segments is located on the side of the first, second, and third connection points away from the boundary line.

[0026] In the above-described display device, in a direction perpendicular to the boundary line, one of the second trace segment, the fifth trace segment, and the eighth trace segment is located between two of the first connection point, the second connection point, and the third connection point.

[0027] The display device of this application includes a display panel, which includes a display area and a non-display area located on at least one side of the display area. The display panel also includes a thin-film transistor array substrate, which includes multiple signal lines and multiple color resists. The signal lines extend from the display area to the non-display area. The multiple signal lines include at least one first signal line. At least a portion of the color resists is located in the non-display area. The multiple color resists include a first color resist and a second color resist, which are adjacent to each other. In the thickness direction of the display panel, the first color resist covers a first portion of the first signal line. A portion of the second color resist on the side away from the boundary line between the display area and the non-display area protrudes toward the first color resist, and the portion of the second color resist protruding toward the first color resist covers a second portion of the first signal line. The technical solution of this application changes the shape of the second color resist in the non-display area, so that a portion of the second color resist on the side away from the boundary line protrudes toward the first color resist, and this protruding portion covers the second portion of the first signal line, thereby ensuring that the first signal line is covered by the second color resist in the boundary area between the first and second color resists. In the etching process, the junction between the second color resist and the first color resist on the side furthest from the boundary line is a location prone to color resist loss. Because the second color resist protrudes towards the first color resist, the location prone to color resist loss at the junction of the first and second color resists is laterally offset relative to the first signal line. This location prone to color resist loss no longer overlaps with the first signal line in the thickness direction of the display panel DP. Even if the etching amount is large, a color resist loss area appears at this location. This color resist loss area no longer overlaps with the first signal line in the thickness direction of the display panel DP. The first signal line is still covered by the first or second color resist in the thickness direction of the display panel. There is no signal line directly below the color resist loss area. Therefore, even if the organic protective layer below the color resist missing area is peeled off due to the loss of the color resist layer's protection, since there is no signal line directly below the color resist missing area, the transparent conductive layer and the metal layer will not directly contact each other at that location. This avoids a short circuit between the transparent conductive layer and the metal layer, thereby preventing the abnormal current generated by the short circuit from burning out the signal line, reducing the incidence of data line open circuit failure, and improving the reliability and display quality of the display device.

[0028] Furthermore, the technical solution of this application modifies the shape of the second color resist in the non-display area, causing a portion of the second color resist on the side furthest from the boundary line to protrude towards the first color resist. This protruding portion forms an overlapping area with the first color resist, which spans the first signal line, thus creating a double-layer color resist coverage at the boundary between the first and second color resists. This double-layer color resist coverage increases the thickness of the color resist layer for the first signal line in this area, improving the light-shielding effect and reducing the terrain differences at the edge of the display area, thereby improving the display effect at the edge of the display area. The technical solution of this application solves the problem of data line open circuit defects while maintaining the original light-shielding and terrain flattening effects, without affecting the display performance of the display device. Attached Figure Description

[0029] Figure 1 This is a schematic diagram illustrating the color resist setting method in the non-display area of ​​a traditional display device.

[0030] Figure 2 for Figure 1 The diagram shows a simulation of the color resist setting method in the non-display area of ​​a traditional display device.

[0031] Figure 3 This is a schematic diagram of a display device provided in an embodiment of this application.

[0032] Figure 4 This is a schematic diagram illustrating the color resist setting method in the non-display area of ​​a display device provided in an embodiment of this application.

[0033] Figure 5 for Figure 4 The diagram shows a simulation of the color resist setting method in the non-display area of ​​the display device.

[0034] Figure 6 for Figure 4 This diagram illustrates the relationship between the color resist settings in the non-display area of ​​the display device and the position of the signal lines below the color resist. Detailed Implementation

[0035] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0036] The terms “first,” “second,” and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different technical features. The terms “multiple,” and similar words mean two or more, unless otherwise expressly specified.

[0037] The technical solutions of different embodiments of this application can be combined with each other.

[0038] Embodiments of this application provide a display device. This display device is a liquid crystal display device, such as... Figure 3As shown, the liquid crystal display device includes a display panel DP, a timing controller TCON, and a source driver chip SDIC. The display panel DP is a liquid crystal display panel.

[0039] The timing controller TCON is used to receive externally input image data and convert the image data into a data format suitable for display on the LCD panel. The timing controller TCON is also used to generate control signals and transmit the data signals and control signals to the source driver chip SDIC and the gate driver circuit GOA of the display panel DP, respectively.

[0040] The source driver chip SDIC is electrically connected to the timing controller TCON. The source driver chip SDIC is used to receive data signals from the timing controller TCON, convert the data signals into drive signals, and then transmit them to the pixel PX through the data line DL.

[0041] The liquid crystal display panel includes a gate driving circuit (GOA), multiple gate lines (GL), multiple data lines (DL), and multiple pixels (PX). The gate driving circuit (GOA) generates scan signals and transmits these signals to the pixels (PX) via the gate lines (GL). The multiple gate lines (GL) extend along a first direction, and the multiple data lines (DL) extend along a second direction perpendicular to the first direction. The pixel (PX) is electrically connected to the gate lines (GL) and the data lines (DL). The pixel (PX) includes a thin-film transistor (TFT) and a pixel electrode. The gate of the TFT is electrically connected to the gate line (GL), the source of the TFT is electrically connected to the data line (DL), and the drain of the TFT is electrically connected to the pixel electrode.

[0042] The display panel DP includes a display area and a non-display area located on at least one side of the display area. The display area has multiple pixels PX. The non-display area is located outside the display area and includes gate drive circuit GOA, signal lines, and other components. A boundary line BL separates the display area and the non-display area.

[0043] The display panel DP also includes a thin-film transistor array substrate. The thin-film transistor array substrate includes a substrate body, multiple signal lines disposed on the substrate body, a transparent conductive layer disposed on the signal lines, an organic protective layer disposed on the transparent conductive layer, and multiple color resists disposed on the organic protective layer. The transparent conductive layer is an indium tin oxide layer, which is used to form pixel electrodes or common electrodes. The signal lines include gate lines (GL) or data lines (DL). The organic protective layer protects the transparent conductive layer. In the thickness direction of the display panel DP, the layer containing the color resists is located on top of the layer containing the signal lines.

[0044] Multiple signal lines extend from the display area to the non-display area. These signal lines include at least one first signal line SL1. The first signal line SL1 extends within the display area in a direction perpendicular to the boundary line BL, and then crosses the boundary line BL to extend into the non-display area. Within the non-display area, the first signal line SL1 includes a first trace segment SL1-1, a second trace segment SL1-2, and a third trace segment SL1-3 connected sequentially. The first trace segment SL1-1 extends perpendicular to the boundary line BL. One end of the first trace segment SL1-1 is connected to the first signal line SL1 within the display area, and the other end is connected to the second trace segment SL1-2. The second trace segment SL1-2 extends parallel to the boundary line BL. One end of the second trace segment SL1-2 is connected to the other end of the first trace segment SL1-1, and the other end is connected to the third trace segment SL1-3. The third trace segment SL1-3 extends perpendicular to the boundary line BL. One end of the third trace segment SL1-3 is connected to the other end of the second trace segment SL1-2, and the other end of the third trace segment SL1-3 extends in a direction away from the boundary line BL. The first signal line SL1 has a stepped, zigzag shape in the non-display area.

[0045] At least a portion of a plurality of color resistors is located in the non-display area. The plurality of color resistors includes a first color resistor CF1 and a second color resistor CF2. The first color resistor CF1 and the second color resistor CF2 are adjacent in a direction parallel to the boundary line BL. The first color resistor CF1 is a red color resistor, and the second color resistor CF2 is a green color resistor. The first color resistor CF1 and the second color resistor CF2 extend across the boundary line BL from the display area to the non-display area.

[0046] like Figure 1 and Figure 2 As shown, in conventional technical solutions, the boundary edges of the second color resist CF2 and the first color resist CF1 are arranged in a vertical straight line, with no obvious protrusion or extension between them. In conventional technical solutions, the boundary between the first color resist CF1 and the second color resist CF2 in the non-display area overlaps with the signal line below in the thickness direction of the display panel DP. In abnormal situations, a V-shaped color resist missing area exists at the boundary between the first color resist CF1 and the second color resist CF2. This missing area is located directly above the signal line in the thickness direction of the display panel DP, causing the signal line to be exposed at this boundary position because it is not completely covered by the color resist layer.

[0047] In the thickness direction of the display panel DP, the first color resist CF1 covers a first portion of the first signal line SL1. The first portion of the first signal line SL1 includes a first trace segment SL1-1, a second trace segment SL1-2, and a portion of a third trace segment SL1-3. The first color resist CF1 overlaps with the first portion of the first signal line SL1 in the thickness direction of the display panel DP, and the first portion of the first signal line SL1 is covered by the first color resist CF1.

[0048] like Figure 4 , Figure 5 and Figure 6 As shown, a portion of the side of the second color resist CF2 away from the boundary line BL protrudes towards the first color resist CF1. The edge of the second color resist CF2 facing the first color resist CF1 includes a first edge segment E1 and a second edge segment E2. The first edge segment E1 connects to the second edge segment E2. The extension direction of the first edge segment E1 is perpendicular to the boundary line BL. The first edge segment E1 extends in the non-display area in a direction perpendicular to the boundary line BL. The second edge segment E2 is inclined towards the first color resist CF1 relative to the first edge segment E1. The location where the first edge segment E1 and the second edge segment E2 connect is a second connection point. This second connection point is located in the non-display area. The second edge segment E2 extends from the second connection point in a direction inclined to the boundary line BL, gradually approaching the first color resist CF1 during its extension. A portion of the side of the second color resist CF2 away from the boundary line BL protrudes towards the first color resist CF1 through the inclined extension of the second edge segment E2.

[0049] like Figure 6 As shown, the portion of the second color resist CF2 protruding towards the first color resist CF1 covers the second part of the first signal line SL1. The second part of the first signal line SL1 is a portion of the third trace segment SL1-3. The second edge segment E2 intersects with the third trace segment SL1-3. The portion of the second color resist CF2 protruding towards the first color resist CF1 crosses the third trace segment SL1-3, and a portion of the third trace segment SL1-3 is covered by the second color resist CF2 in the thickness direction of the display panel DP. This portion of the third trace segment SL1-3 is the second part of the first signal line SL1.

[0050] like Figure 6 As shown, the portion of the second color resist CF2 that protrudes towards the first color resist CF1 (i.e., the portion of the second color resist CF2 that extends beyond the first edge segment E1) overlaps with a portion of the first signal line SL1 below the first color resist CF1 in the thickness direction of the display panel DP. In the thickness direction of the display panel DP, the location Q at the junction of the first color resist CF1 and the second color resist CF2, where color resist loss is likely to occur, avoids the first signal line SL1 below.

[0051] The second distance D2 between the second connection point and the boundary line BL is greater than or equal to 20 micrometers. This second distance D2 is the distance between the second connection point and the boundary line BL in the direction perpendicular to the boundary line BL. When this second distance D2 is greater than or equal to 20 micrometers, the turning point of the second color resist CF2 maintains sufficient spacing from the display area, thus avoiding any impact on the display area's display due to manufacturing process deviations.

[0052] In conventional solutions, the edge of the second color resist CF2 facing the first color resist CF1 extends in a straight line perpendicular to the boundary line BL within the non-display area, and this edge does not slope towards the first color resist CF1. In conventional solutions, the junction of the first color resist CF1 and the second color resist CF2 overlaps with the third trace segment SL1-3 in the thickness direction of the display panel DP. During the etching process, the junction of a portion of the first color resist CF1 and the second color resist CF2 away from the boundary line BL is a location Q prone to color resist loss. When the etching depth is large, a color resist loss area appears at this junction. This color resist loss area overlaps with the third trace segment SL1-3 in the thickness direction of the display panel DP, and the third trace segment SL1-3 is directly exposed at this color resist loss area due to the loss of color resist layer coverage. In subsequent processes, the organic protective layer beneath the color resist loss area loses its color resist layer protection and peels off, causing the transparent conductive layer to directly contact the metal layer and short-circuit. The abnormal current generated by the short circuit caused the signal line to burn out, which in turn caused the data line to be open or faulty.

[0053] like Figure 2 As shown, in the conventional technical solution, there is an irregular missing color resist area at the junction of the first color resist CF1 and the second color resist CF2 located at the edge of the display area near the non-display area. This missing area exposes the metal traces located below the color resist along the thickness direction of the display panel DP.

[0054] like Figure 4 , Figure 5 and Figure 6As shown, the technical solution of this application changes the shape of the second color resist CF2 in the non-display area. A portion of the second color resist CF2 on the side away from the boundary line BL protrudes towards the first color resist CF1. This protruding portion covers the second part of the first signal line SL1. The first signal line SL1 is covered by the second color resist CF2 in the boundary area between the first color resist CF1 and the second color resist CF2. The protruding portion of the second color resist CF2 towards the first color resist CF1 causes the position Q, where color resist loss is likely to occur at the boundary between the first color resist CF1 and the second color resist CF2, to be laterally offset relative to the first signal line SL1. This position Q, where color resist loss is likely to occur, no longer overlaps with the first signal line SL1 in the thickness direction of the display panel DP. Even with a large etching depth, a color resist missing area appears at location Q, which is prone to color resist loss. This missing area no longer overlaps with the first signal line SL1 in the thickness direction of the display panel DP. The first signal line SL1 is still covered by the first color resist CF1 or the second color resist CF2 in the thickness direction of the display panel DP. There is no signal line directly below the missing area. Therefore, even if the organic protective layer below the missing area loses the protection of the color resist layer and peels off, since there is no signal line directly below the missing area, the transparent conductive layer and the metal layer will not directly contact each other at that location. Short circuits between the transparent conductive layer and the metal layer are avoided, and the abnormal current generated by the short circuit that could cause the signal line to burn out is avoided. The incidence of data line open circuit defects is reduced, improving the reliability and display quality of the display device.

[0055] like Figure 4 , Figure 5 and Figure 6 As shown, in the technical solution of this application, the edge of the second color resist CF2 extends towards the first color resist CF1 and fills the original missing position. The first color resist CF1 and the second color resist CF2 form a complete splicing and covering at the junction. The original missing hollow area of ​​the color resist is filled by the second color resist CF2, and the wiring structure below is completely covered under the color resist layer.

[0056] Furthermore, the technical solution of this application changes the shape of the second color resist CF2 in the non-display area. A portion of the side of the second color resist CF2 away from the boundary line BL protrudes towards the first color resist CF1, and this protruding portion of the second color resist CF2 overlaps with a portion of the trace below the first color resist CF1. Through this tilted and bend design, the junction of the first color resist CF1 and the second color resist CF2 (i.e., the V-shaped horn area prone to etching defects) is laterally offset, thereby avoiding the signal lines below in the thickness direction of the display panel DP. The technical solution of this application solves the problem of data line open circuit defects while maintaining the original light-shielding effect and terrain flattening effect, and the display performance of the display device is not affected.

[0057] like Figure 6 As shown, the multiple signal lines also include a second signal line SL2. This second signal line SL2 extends in the same way as the first signal line SL1. The second signal line SL2 extends from the display area to the non-display area. In the non-display area, the second signal line SL2 includes a fourth trace segment SL2-1, a fifth trace segment SL2-2, and a sixth trace segment SL2-3 connected sequentially. The fourth trace segment SL2-1 extends perpendicularly to the boundary line BL. The fifth trace segment SL2-2 extends parallel to the boundary line BL. The sixth trace segment SL2-3 extends perpendicularly to the boundary line BL. The second signal line SL2 has a stepped, zigzag shape in the non-display area.

[0058] In the thickness direction of the display panel DP, the second color resist CF2 covers a first portion of the second signal line SL2. The first portion of the second signal line SL2 includes a portion of the fourth trace segment SL2-1, the fifth trace segment SL2-2, and the sixth trace segment SL2-3. The second color resist CF2 overlaps with the first portion of the second signal line SL2 in the thickness direction of the display panel DP, and the first portion of the second signal line SL2 is covered by the second color resist CF2.

[0059] like Figure 6 As shown, the multiple color resistors also include a third color resistor CF3. This third color resistor CF3 is located on the side of the second color resistor CF2 away from the first color resistor CF1. The third color resistor CF3 is a blue color resistor. In a direction parallel to the boundary line BL, the third color resistor CF3 is adjacent to the second color resistor CF2. A portion of the side of the third color resistor CF3 away from the boundary line BL protrudes towards the second color resistor CF2. The edge of the third color resistor CF3 facing the second color resistor CF2 includes a fifth edge segment E5 and a sixth edge segment E6. The fifth edge segment E5 and the sixth edge segment E6 are connected. The extension direction of the fifth edge segment E5 is perpendicular to the boundary line BL. The sixth edge segment E6 is inclined towards the second color resistor CF2 relative to the fifth edge segment E5. The location where the fifth edge segment E5 and the sixth edge segment E6 connect is a third connection point. This third connection point is located in the non-display area. The sixth edge segment E6 extends from the third connection point along a direction inclined to the boundary line BL, and the sixth edge segment E6 gradually approaches the second color resistor CF2 during its extension. A portion of the third color resist CF3 on the side away from the boundary line BL protrudes toward the second color resist CF2 through the inclined extension of the sixth edge segment E6.

[0060] The portion of the third color resist CF3 protruding towards the second color resist CF2 covers the second part of the second signal line SL2. This second part of the second signal line SL2 is a portion of the sixth trace segment SL2-3. The sixth edge segment E6 intersects with the sixth trace segment SL2-3. The portion of the third color resist CF3 protruding towards the second color resist CF2 crosses the sixth trace segment SL2-3, and a portion of the sixth trace segment SL2-3 is covered by the third color resist CF3 in the thickness direction of the display panel DP. This portion of the sixth trace segment SL2-3 is the second part of the second signal line SL2.

[0061] The portion of the third color resist CF3 that protrudes towards the second color resist CF2 (i.e., the portion of the third color resist CF3 that extends beyond the fifth edge segment E5) overlaps with a portion of the second signal line SL2 below the second color resist CF2 in the thickness direction of the display panel DP. In the thickness direction of the display panel DP, the location Q at the junction of the second color resist CF2 and the third color resist CF3, where color resist loss is likely to occur, avoids the lower second signal line SL2.

[0062] The third connection point and the boundary line BL have a third distance D3 greater than or equal to 20 micrometers. This third distance D3 is the distance between the third connection point and the boundary line BL in the direction perpendicular to the boundary line BL. Through the bend shape of the third color resist CF3, the location Q at the junction of the second color resist CF2 and the third color resist CF3, where color resist loss is prone to occur, avoids the second signal line SL2, thus reducing the incidence of data line open circuits.

[0063] like Figure 6 As shown, in a direction parallel to the boundary line BL, the fourth trace segment SL2-1 is located between the first edge segment E1 and the fifth edge segment E5. The fifth trace segment SL2-2 extends from the fourth trace segment SL2-1 toward the third color resist CF3, and does not intersect with the fifth edge segment E5. The fifth trace segment SL2-2 does not cross the fifth edge segment E5, and its extension terminates on the left side of the fifth edge segment E5. The other end of the fifth trace segment SL2-2 connects to the sixth trace segment SL2-3, which extends in a direction away from the boundary line BL. The sixth edge segment E6 intersects with the sixth trace segment SL2-3.

[0064] like Figure 6As shown, the multiple signal lines also include a third signal line SL3. This third signal line SL3 extends in the same way as the first signal line SL1. The third signal line SL3 extends from the display area to the non-display area. In the non-display area, the third signal line SL3 includes a seventh trace segment SL3-1, an eighth trace segment SL3-2, and a ninth trace segment SL3-3 connected sequentially. The extension direction of the seventh trace segment SL3-1 is perpendicular to the boundary line BL. The extension direction of the eighth trace segment SL3-2 is parallel to the boundary line BL. The extension direction of the ninth trace segment SL3-3 is perpendicular to the boundary line BL. The third signal line SL3 has a stepped, zigzag shape in the non-display area.

[0065] In the thickness direction of the display panel DP, the third color resist CF3 covers the first portion of the third signal line SL3. The first portion of the third signal line SL3 includes a portion of the seventh trace segment SL3-1, the eighth trace segment SL3-2, and the ninth trace segment SL3-3. The third color resist CF3 overlaps with the first portion of the third signal line SL3 in the thickness direction of the display panel DP, and the first portion of the third signal line SL3 is covered by the third color resist CF3.

[0066] like Figure 6 As shown, another first color resist CF1, one of the multiple color resists, protrudes towards the third color resist CF3, covering the second portion of the third signal line SL3. This other first color resist CF1 is located on the side of the third color resist CF3 away from the second color resist CF2. This other first color resist CF1 is a red color resist. In a direction parallel to the boundary line BL, this other first color resist CF1 is adjacent to the third color resist CF3. The edge of this other first color resist CF1 intersects with the ninth trace segment SL3-3. The protruding portion of this other first color resist CF1 towards the third color resist CF3 crosses the ninth trace segment SL3-3, and a portion of the ninth trace segment SL3-3 is covered by this other first color resist CF1 in the thickness direction of the display panel DP. This portion of the ninth trace segment SL3-3 is the second portion of the third signal line SL3. By using the protruding portion of the other first color resistor CF1, the position Q at the junction of the third color resistor CF3 and the other first color resistor CF1, where color resistor loss is likely to occur, avoids the third signal line SL3, thus reducing the incidence of data line open circuit failure.

[0067] like Figure 6As shown, in a direction parallel to the boundary line BL, the seventh trace segment SL3-1 is located between the fifth edge segment E5 and the edge of the other first color resist CF1 facing the third color resist CF3. The eighth trace segment SL3-2 extends from the seventh trace segment SL3-1 towards the other first color resist CF1, and does not intersect with the edge of the other first color resist CF1 facing the third color resist CF3. The eighth trace segment SL3-2 does not cross the edge of the other first color resist CF1 facing the third color resist CF3, and its extension terminates on the left side of the edge of the other first color resist CF1 facing the third color resist CF3. The other end of the eighth trace segment SL3-2 connects to the ninth trace segment SL3-3, which extends in a direction away from the boundary line BL, and the edge of the other first color resist CF1 intersects with the ninth trace segment SL3-3.

[0068] like Figure 6 As shown, a portion of the side of the first color resist CF1 away from the boundary line BL protrudes towards another third color resist CF3 among a plurality of color resists. This other third color resist CF3 is located on the side of the first color resist CF1 away from the second color resist CF2. This other third color resist CF3 is a blue color resist. The edge of the first color resist CF1 facing the other third color resist CF3 includes a third edge segment E3 and a fourth edge segment E4. The third edge segment E3 is connected to the fourth edge segment E4. The extension direction of the third edge segment E3 is perpendicular to the boundary line BL. The fourth edge segment E4 is inclined relative to the third edge segment E3 towards the other third color resist CF3. The location where the third edge segment E3 and the fourth edge segment E4 connect is the first connection point. This first connection point is located in the non-display area. The fourth edge segment E4 extends from the first connection point along a direction inclined to the boundary line BL, and the fourth edge segment E4 gradually approaches the other third color resist CF3 during its extension.

[0069] The portion of the first color resist CF1 protruding toward the other third color resist CF3 covers a portion of another third signal line SL3 among multiple signal lines. This other third signal line SL3 comprises three trace segments in the non-display area, and the fourth edge segment E4 intersects with the third trace segment of the other third signal line SL3. The portion of the first color resist CF1 protruding toward the other third color resist CF3 crosses the third trace segment of the other third signal line SL3, and a portion of this third trace segment is covered by the first color resist CF1 in the thickness direction of the display panel DP.

[0070] The portion of the first color resist CF1 that protrudes towards the other third color resist CF3 (i.e., the portion of the first color resist CF1 that extends beyond the third edge segment E3) overlaps with a portion of another third signal line SL3 below the other third color resist CF3 in the thickness direction of the display panel DP. In the thickness direction of the display panel DP, the location Q at the junction of the first color resist CF1 and the other third color resist CF3, which is prone to color resist loss, avoids the other third signal line SL3 below.

[0071] The first connection point and the boundary line BL have a first distance D1 greater than or equal to 20 micrometers. This first distance D1 is the distance between the first connection point and the boundary line BL in a direction perpendicular to the boundary line BL. Through the bend shape of the first color resist CF1, the location Q at the junction of the first color resist CF1 and the other third color resist CF3, which is prone to color resist loss, avoids the other third signal line SL3, thus reducing the incidence of data line open circuits.

[0072] like Figure 6 As shown, in a direction parallel to the boundary line BL, the first trace segment SL1-1 is located between the first edge segment E1 and the third edge segment E3. The second trace segment SL1-2 extends from the first trace segment SL1-1 toward the second color resist CF2, and does not intersect the first edge segment E1. The second trace segment SL1-2 does not cross the first edge segment E1, and its extension terminates on the right side of the first edge segment E1. The other end of the second trace segment SL1-2 connects to the third trace segment SL1-3, which extends in a direction away from the boundary line BL. The second edge segment E2 intersects the third trace segment SL1-3.

[0073] like Figure 6As shown, in one embodiment of this application, the first distance D1, the second distance D2, and the third distance D3 are equal. That is, the distances of the first connection point, the second connection point, and the third connection point to the boundary line BL are the same. The turning points of the first color resist CF1, the second color resist CF2, and the third color resist CF3 are aligned in a direction perpendicular to the boundary line BL. The straight line containing the second routing segment SL1-2, the straight line containing the fifth routing segment SL2-2, and the straight line containing the eighth routing segment SL3-2 are collinear. The second routing segment SL1-2, the fifth routing segment SL2-2, and the eighth routing segment SL3-2 are located on the same straight line. In a direction perpendicular to the boundary line BL, the second trace segment SL1-2, the fifth trace segment SL2-2, and the eighth trace segment SL3-2 are located between the first connection point, the second connection point, the third connection point, and the boundary line BL, or the second trace segment SL1-2, the fifth trace segment SL2-2, and the eighth trace segment SL3-2 are located on the side of the first connection point, the second connection point, and the third connection point away from the boundary line BL. When the second trace segment SL1-2, the fifth trace segment SL2-2, and the eighth trace segment SL3-2 are located between the first connection point, the second connection point, the third connection point, and the boundary line BL, the turning point of each color resistor is located on the side of the horizontal trace segment of each signal line away from the boundary line BL, and the inclined edge segment of each color resistor intersects with each signal line at the vertical trace segment of each signal line. When the second trace segment SL1-2, the fifth trace segment SL2-2, and the eighth trace segment SL3-2 are located on the side away from the boundary line BL of the first connection point, the second connection point, and the third connection point, the turning point of each color resistor is located on the side of the horizontal trace segment of each signal line closer to the boundary line BL, and the inclined edge segment of each color resistor intersects with each signal line at the vertical trace segment of each signal line.

[0074] like Figure 6As shown, in another embodiment of this application, the first distance D1, the second distance D2, and the third distance D3 are not equal. That is, the distances of the first connection point, the second connection point, and the third connection point from the boundary line BL are different. The turning points of the first color resist CF1, the second color resist CF2, and the third color resist CF3 are not aligned in the direction perpendicular to the boundary line BL. The straight line containing the second line segment SL1-2, the straight line containing the fifth line segment SL2-2, and the straight line containing the eighth line segment SL3-2 are collinear. In the direction perpendicular to the boundary line BL, one of the second line segment SL1-2, the fifth line segment SL2-2, and the eighth line segment SL3-2 is located between two of the first connection point, the second connection point, and the third connection point. For example, the second line segment SL1-2 is located between the first connection point and the second connection point, and the fifth line segment SL2-2 is located between the second connection point and the third connection point. By setting different turning points, the sloping edge segments of each color resistor intersect with each signal line at different positions.

[0075] In one specific embodiment of this application, the first distance D1 is 30 micrometers to 70 micrometers, the second distance D2 is 70 micrometers to 110 micrometers, and the third distance D3 is 80 micrometers to 120 micrometers. For example, the first distance D1 is 30 micrometers, 40 micrometers, 50 micrometers, 60 micrometers, or 70 micrometers; the second distance D2 is 70 micrometers, 80 micrometers, 90 micrometers, 100 micrometers, or 110 micrometers; and the third distance D3 is 80 micrometers, 90 micrometers, 100 micrometers, 110 micrometers, or 120 micrometers. By setting different turning distances, the inclined edge segments of each color resistor intersect with each signal line at different positions. The position Q where color resistors are prone to missing color resistors at the junctions between each color resistor avoids the vertical routing segments of each signal line, thus reducing the incidence of data line open circuits.

[0076] The distance between any one of the first connection point, the second connection point, and the third connection point and the edge of the color resist on the side away from the boundary line BL is greater than or equal to 10 micrometers, for example, the distance is 10 micrometers, 15 micrometers, 20 micrometers, 25 micrometers, 30 micrometers, 35 micrometers, or 40 micrometers.

[0077] like Figure 2 As shown, in the conventional technical solution, there is a missing color resist area at the junction of the second color resist CF2 and the first color resist CF1. This missing color resist area overlaps with the vertical trace of the first signal line SL1 in the thickness direction of the display panel DP, leading to data line open circuit defects. Figure 5 , Figure 6As shown, in the technical solution of this application, by changing the shape of the second color resist CF2, the edge of the second color resist CF2 adopts a turning shape in the non-display area, and there is no longer a color resist missing area at the junction of the second color resist CF2 and the first color resist CF1, or the color resist missing area avoids the vertical line segment of the first signal line SL1, and the incidence of data line open circuit failure is significantly reduced.

[0078] In embodiments of this application, multiple color resists (RGB arrays) in the display area extend beyond the display area, overlapping with a large blue color resist (CFB) located on the periphery of the non-display area. The overlap amount of this overlapping area is, for example, 5 micrometers. This overlapping area serves to reduce topographical differences at the edge of the display area, mitigate light transmission issues in metal-free areas, and simultaneously provide a light-shielding effect.

[0079] In embodiments of this application, the display panel DP further includes a counter substrate. The counter substrate is disposed opposite to the thin-film transistor array substrate, and a liquid crystal layer is disposed between the counter substrate and the thin-film transistor array substrate.

[0080] The display device of this application changes the shape of the color resistor located in the non-display area. The edge of the color resistor adopts a turning shape in the non-display area. The position Q where color resistor is prone to missing is avoided at the junction between color resistors. The vertical line segment of the signal line is avoided, thereby reducing the incidence of data line open circuit failure and improving the reliability and display quality of the display device.

[0081] The embodiments of this application have been described in detail above. The content of this specification should not be construed as limiting the scope of protection of this application.

Claims

1. A display device, characterized in that, The display device includes a display panel, the display panel including a display area and a non-display area located on at least one side of the display area, and the display panel further includes a thin-film transistor array substrate, the thin-film transistor array substrate including: Multiple signal lines extending from the display area to the non-display area, wherein the multiple signal lines include at least one first signal line; and A plurality of color resists are provided, at least a portion of which are located in the non-display area. The plurality of color resists include a first color resist and a second color resist, which are adjacent to each other. In the thickness direction of the display panel, the first color resist covers a first portion of the first signal line, and a portion of the second color resist on the side away from the boundary line between the display area and the non-display area protrudes toward the first color resist. The portion of the second color resist protruding toward the first color resist covers a second portion of the first signal line.

2. The display device according to claim 1, characterized in that, The edge of the second color resist facing the first color resist includes a first edge segment and a second edge segment. The first edge segment is connected to the second edge segment. The extension direction of the first edge segment is perpendicular to the boundary line. The second edge segment is inclined relative to the first edge segment toward the first color resist. The second edge segment intersects with the first signal line.

3. The display device according to claim 2, characterized in that, The first signal line in the non-display area includes a first trace segment, a second trace segment, and a third trace segment connected in sequence. The extension direction of the first trace segment is perpendicular to the boundary line, the extension direction of the second trace segment is parallel to the boundary line, the extension direction of the third trace segment is perpendicular to the boundary line, and the second edge segment intersects with the third trace segment.

4. The display device according to claim 2, characterized in that, The second color resist overlaps with the first color resist at the second edge segment.

5. The display device according to claim 1, characterized in that, The plurality of signal lines also include a second signal line, wherein, in the thickness direction of the display panel, the second color resist covers a first portion of the second signal line; The plurality of color resistors also include a third color resistor located on the side of the second color resistor away from the first color resistor, a portion of the side of the third color resistor away from the boundary line protruding toward the second color resistor, and the portion of the third color resistor protruding toward the second color resistor covering a second portion of the second signal line.

6. The display device according to claim 5, characterized in that, The edge of the third color resist facing the second color resist includes a fifth edge segment and a sixth edge segment. The fifth edge segment is connected to the sixth edge segment. The extension direction of the fifth edge segment is perpendicular to the boundary line. The sixth edge segment is inclined relative to the fifth edge segment toward the second color resist. The sixth edge segment intersects with the second signal line.

7. The display device according to claim 6, characterized in that, The second signal line in the non-display area includes a fourth trace segment, a fifth trace segment, and a sixth trace segment connected in sequence. The extension direction of the fourth trace segment is perpendicular to the boundary line, the extension direction of the fifth trace segment is parallel to the boundary line, the extension direction of the sixth trace segment is perpendicular to the boundary line, and the sixth edge segment intersects with the sixth trace segment.

8. The display device according to claim 6, characterized in that, The third color resist overlaps with the second color resist at the sixth edge segment.

9. The display device according to claim 5, characterized in that, The plurality of signal lines also include a third signal line, wherein, in the thickness direction of the display panel, the third color resist covers a first portion of the third signal line, and a portion of another first color resist protruding toward the third color resist covers a second portion of the third signal line.

10. The display device according to claim 9, characterized in that, The third signal line in the non-display area includes a seventh line segment, an eighth line segment, and a ninth line segment connected in sequence. The extension direction of the seventh line segment is perpendicular to the boundary line, the extension direction of the eighth line segment is parallel to the boundary line, and the extension direction of the ninth line segment is perpendicular to the boundary line. The edge of the other first color resist intersects with the ninth trace segment.

11. The display device according to claim 5, characterized in that, A portion of the first color resist on one side away from the boundary line between the display area and the non-display area protrudes toward another third color resist among the plurality of color resists, and the portion of the first color resist protruding toward the other third color resist covers a portion of another third signal line among the plurality of signal lines.

12. The display device according to claim 11, characterized in that, The edge of the first color resist facing the other third color resist includes a third edge segment and a fourth edge segment, the third edge segment is connected to the fourth edge segment, the extension direction of the third edge segment is perpendicular to the boundary line, and the fourth edge segment is inclined relative to the third edge segment towards the other third color resist.

13. The display device according to claim 12, characterized in that, The first color resist overlaps with the other third color resist at the fourth edge segment.

14. The display device according to claim 1, characterized in that, The plurality of color resists also include a third color resist, which is located on the side of the second color resist away from the first color resist; The edge of the second color resist facing the first color resist includes a first edge segment and a second edge segment, the first edge segment being connected to the second edge segment; the edge of the third color resist facing the second color resist includes a fifth edge segment and a sixth edge segment, the fifth edge segment being connected to the sixth edge segment; the edge of the first color resist facing the other third color resist includes a third edge segment and a fourth edge segment, the third edge segment being connected to the fourth edge segment. The first connection point connecting the third edge segment and the fourth edge segment is at a first distance greater than or equal to 20 micrometers from the boundary line; the second connection point connecting the first edge segment and the second edge segment is at a second distance greater than or equal to 20 micrometers from the boundary line; and the third connection point connecting the fifth edge segment and the sixth edge segment is at a third distance greater than or equal to 20 micrometers from the boundary line.

15. The display device according to claim 14, characterized in that, The first distance, the second distance, and the third distance are equal.

16. The display device according to claim 14, characterized in that, The first distance, the second distance, and the third distance are not equal to each other.

17. The display device according to claim 16, characterized in that, The first distance is 30 micrometers to 70 micrometers, the second distance is 70 micrometers to 110 micrometers, and the third distance is 80 micrometers to 120 micrometers.

18. The display device according to claim 14, characterized in that, The first signal line in the non-display area includes a first trace segment, a second trace segment, and a third trace segment connected in sequence. The extension direction of the first trace segment is perpendicular to the boundary line, the extension direction of the second trace segment is parallel to the boundary line, and the extension direction of the third trace segment is perpendicular to the boundary line. The multiple signal lines also include a second signal line, which in the non-display area includes a fourth trace segment, a fifth trace segment, and a sixth trace segment connected in sequence. The extension direction of the fourth trace segment is perpendicular to the boundary line, the extension direction of the fifth trace segment is parallel to the boundary line, and the extension direction of the sixth trace segment is perpendicular to the boundary line. The multiple signal lines also include a third signal line, which includes a seventh, an eighth, and a ninth trace connected in sequence in the non-display area. The extension direction of the seventh trace is perpendicular to the boundary line, the extension direction of the eighth trace is parallel to the boundary line, and the extension direction of the ninth trace is perpendicular to the boundary line. The straight line containing the second routing segment, the straight line containing the fifth routing segment, and the straight line containing the eighth routing segment are collinear; In a direction perpendicular to the boundary line, one of the second, fifth, and eighth routing segments is located between the boundary line and one of the first, second, and third connection points, or one of the second, fifth, and eighth routing segments is located on the side of the first, second, and third connection points away from the boundary line.

19. The display device according to claim 18, characterized in that, In a direction perpendicular to the boundary line, one of the second routing segment, the fifth routing segment, and the eighth routing segment is located between two of the first connection point, the second connection point, and the third connection point.

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