WO2018129776A1 - 一种驱动电路及显示装置 - Google Patents

一种驱动电路及显示装置 Download PDF

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Publication number
WO2018129776A1
WO2018129776A1 PCT/CN2017/073326 CN2017073326W WO2018129776A1 WO 2018129776 A1 WO2018129776 A1 WO 2018129776A1 CN 2017073326 W CN2017073326 W CN 2017073326W WO 2018129776 A1 WO2018129776 A1 WO 2018129776A1
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Prior art keywords
metal layer
width
strip
display device
thickness
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PCT/CN2017/073326
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English (en)
French (fr)
Inventor
甘启明
张君恺
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Publication of WO2018129776A1 publication Critical patent/WO2018129776A1/zh
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a driving circuit and a display device.
  • Existing display panels typically include an array substrate and a color film substrate.
  • a plurality of data lines, a plurality of scan lines, and a plurality of pixel units defined by the data lines and the scan lines are disposed on the array substrate.
  • a driver chip is usually disposed on the periphery of the display panel, that is, the driver chip is located in the non-display area.
  • the driving chip is for providing a driving signal, and the driving signal includes a data signal and a scanning signal.
  • the driving chip is connected to the scan line and the data line through a fan-out line to transmit a driving signal to the data line and the scan line.
  • the existing fan-out line is a single-layer metal layer, resulting in a relatively large impedance, thereby increasing power consumption.
  • An object of the present invention is to provide a driving circuit and a display device capable of reducing power consumption.
  • the present invention provides a driving circuit including:
  • a driving chip for providing a driving signal
  • At least two strip-shaped fan-outs for transmitting the driving signal to a display area of the display panel
  • the strip fan-out portion includes a first metal layer and a second metal layer, the second metal layer is located on the first metal layer, and the first metal layer and the second metal layer are disposed An insulating layer, the first metal layer is electrically connected to the second metal layer, a width of the second metal layer is smaller than a width of the first metal layer, and a thickness of the first metal layer is greater than The thickness of the second metal layer.
  • the invention also provides a driving circuit comprising:
  • a driving chip for providing a driving signal
  • At least two strip-shaped fan-outs for transmitting the driving signal to a display area of the display panel
  • the strip fan-out portion includes a first metal layer and a second metal layer, the second metal layer is located on the first metal layer, and a width of the second metal layer is smaller than that of the first metal layer width.
  • a difference between a width of the first metal layer and a width of the second metal layer is within a predetermined width range.
  • the first metal layer has a width ranging from 6 to 8 ⁇ m.
  • the second metal layer has a width ranging from 1 to 6 ⁇ m.
  • an insulating layer is disposed between the first metal layer and the second metal layer, and the first metal layer is electrically connected to the second metal layer.
  • the thickness of the insulating layer is within a predetermined thickness range.
  • the thickness of the insulating layer ranges from 2000 to 6000 angstroms.
  • the thickness of the first metal layer is greater than the thickness of the second metal layer.
  • the length of the first metal layer is within a first predetermined length range.
  • the present invention also provides a display device comprising: a display panel and the above-described driving circuit.
  • the fan-out portion is formed by two metal layers, so that the resistance of the fan-out portion can be reduced, the loss of the driving signal can be reduced, and power consumption can be reduced. Further, since the width of the first metal layer is larger than the width of the second metal layer, it is also possible to prevent the strip-shaped fan-out portion from being short-circuited during exposure, development or etching.
  • FIG. 1 is a schematic structural view of a display device of the present invention.
  • Figure 2 is a schematic cross-sectional view of the strip-shaped fan-out portion of Figure 1 taken along the line AA'.
  • Figure 3 is a plan view of the strip-shaped fan-out portion of Figure 1.
  • FIG. 1 is a schematic structural view of a display device according to the present invention.
  • the driving circuit includes a driving chip and at least two strip fan-out portions 14; wherein the driving chip includes a source driving chip 11 and a gate driving chip 12, and the source driving chip 11 is for providing a data signal, and the gate driving chip 12 Used to provide a scan signal.
  • the strip-shaped fan-out portions 14 are spaced apart from each other, and the spacing between the adjacent two strip-shaped fan-out portions 14 is within a predetermined pitch range.
  • the strip fan-out portion 14 is connected to the driving chip and the display panel 13 for transmitting the driving signal to the display area of the display panel 13; for example, the pins of the driving chip pass through the strip-shaped fan-out portion 14 and the data line or The ends of the scan lines are connected.
  • the strip fan-out portion 14 transmits a scan signal to the scan line of the display panel 13, and transmits the data signal to the data line of the display panel 13.
  • the strip-shaped fan-out portion 14 includes a first metal layer 141 and a second metal layer 143, and the second metal layer 143 is located on the first metal layer 141.
  • the material of the first metal layer 141 and the material of the second metal layer 142 may be a metal material, preferably copper, so that the impedance of the strip-shaped fan-out portion 14 can be better reduced.
  • the material of the first metal layer 141 and the material of the second metal layer 142 may be the same.
  • the thickness H1 of the first metal layer 141 is greater than the thickness H2 of the second metal layer 142.
  • the length of the first metal layer 141 is within a first predetermined length, and the length of the second metal layer 142 is within a second predetermined length.
  • the spacing L between the first metal layer 141 and the second metal layer 142 is within a predetermined pitch. Too large or too small a pitch is not conducive to reducing the RC delay.
  • the width W2 of the second metal layer 143 is smaller than the width W1 of the first metal layer 141. If the widths of the two metal layers are equal, a short circuit occurs in the strip fan-out portion during exposure, development or etching of the second metal layer, so the width of the second metal layer 143 is set smaller than the first metal layer 141. The width prevents the short-circuiting of the strip-shaped fan-out portion 14, thereby reducing the production cost.
  • the difference between the width W1 of the first metal layer 141 and the width W2 of the second metal layer 143 is within a predetermined width range. If the difference in width between the two is small, the strip fan-out portion is not well prevented from being short-circuited during exposure, development or etching. If the difference between the widths of the two is large, the size of the fan-out area is increased, thereby increasing the size of the panel.
  • the width W1 of the first metal layer 141 ranges from 6 to 8 ⁇ m.
  • the width W2 of the second metal layer 143 ranges from 1 to 6 ⁇ m, further preferably from 2 to 6 ⁇ m.
  • an insulating layer 142 is disposed between the first metal layer 141 and the second metal layer 143 , and the first metal layer 141 is electrically connected to the second metal layer 143 .
  • the second metal layer 143 is electrically connected to the first metal layer 141 through the via 15 .
  • the thickness of the insulating layer 142 is within a predetermined thickness range.
  • the insulating layer 142 has a thickness ranging from 2000 to 6000 angstroms.
  • the material of the insulating layer 142 is SiO2 or silicon nitride. It is not conducive to reducing the RC delay because the thickness is too large or too small.
  • an insulating layer 144 is also disposed on the second metal layer 143 for protecting the second metal layer 143.
  • strip-shaped fan-out portion 14 of Fig. 2 or Fig. 3 includes only two metal layers, it is not intended to limit the invention.
  • the strip-shaped fan-out portion 14 may also include two or more metal layers.
  • the fan-out portion is formed by two metal layers, so that the resistance of the fan-out portion can be reduced, the loss of the driving signal can be reduced, and power consumption can be reduced. Further, since the width of the first metal layer is larger than the width of the second metal layer, it is also possible to prevent the strip-shaped fan-out portion from being short-circuited during exposure, development or etching.
  • the present invention further provides a display device.
  • the display device of the present embodiment includes a display panel 13 and a driving circuit.
  • the display panel 13 includes an array substrate, a color filter substrate, and is disposed between the array substrate and the color filter substrate.
  • a liquid crystal layer (not shown), wherein the array substrate includes data lines and scan lines and a plurality of pixel units defined by the data lines and the scan lines.
  • the driving circuit includes a driving chip and at least two strip fan-out portions 14; wherein the driving chip includes a source driving chip 11 and a gate driving chip 12, and the source driving chip 11 is for providing a data signal, and the gate driving chip 12 Used to provide a scan signal.
  • the strip-shaped fan-out portions 14 are spaced apart from each other, and the spacing between the adjacent two strip-shaped fan-out portions 14 is within a predetermined pitch range.
  • the strip fan-out portion 14 is connected to the driving chip and the display panel 13 for transmitting the driving signal to the display area of the display panel 13; for example, the pins of the driving chip pass through the strip-shaped fan-out portion 14 and the data line or The ends of the scan lines are connected.
  • the strip fan-out portion 14 transmits a scan signal to the scan line of the display panel 13, and transmits the data signal to the data line of the display panel 13.
  • the strip-shaped fan-out portion 14 includes a first metal layer 141 and a second metal layer 143, and the second metal layer 143 is located on the first metal layer 141.
  • the material of the first metal layer 141 and the material of the second metal layer 142 may be a metal material, preferably copper, so that the impedance of the strip-shaped fan-out portion 14 can be better reduced.
  • the thickness H1 of the first metal layer 141 is greater than the thickness H2 of the second metal layer 142.
  • the length of the first metal layer 141 is within a first predetermined length, and the length of the second metal layer 142 is within a second predetermined length.
  • the spacing L between the first metal layer 141 and the second metal layer 142 is within a predetermined pitch. It is not conducive to reducing the RC delay because the pitch is too large or too small.
  • the width W2 of the second metal layer 143 is smaller than the width W1 of the first metal layer 141. If the widths of the two metal layers are equal, a short circuit occurs in the strip fan-out portion during exposure, development or etching of the second metal layer, so the width of the second metal layer 143 is set smaller than the first metal layer 141. The width prevents the short-circuiting of the strip-shaped fan-out portion 14, thereby reducing the production cost.
  • the difference between the width W1 of the first metal layer 141 and the width W2 of the second metal layer 143 is within a predetermined width range. If the difference in width between the two is small, the strip fan-out portion is not well prevented from being short-circuited during exposure, development or etching. If the difference between the widths of the two is large, the size of the fan-out area is increased, thereby increasing the size of the panel.
  • the width W1 of the first metal layer 141 ranges from 6 to 8 ⁇ m.
  • the width W2 of the second metal layer 143 ranges from 1 to 6 ⁇ m, further preferably from 2 to 6 ⁇ m.
  • an insulating layer 142 is disposed between the first metal layer 141 and the second metal layer 143 , and the first metal layer 141 is electrically connected to the second metal layer 143 .
  • the second metal layer 143 is electrically connected to the first metal layer 141 through the via 15 .
  • the thickness of the insulating layer 142 is within a predetermined thickness range.
  • the insulating layer 142 has a thickness ranging from 2000 to 6000 angstroms.
  • the material of the insulating layer 142 is SiO2. It is not conducive to reducing the RC delay because the thickness is too large or too small.
  • an insulating layer 144 is also disposed on the second metal layer 143 for protecting the second metal layer 143.
  • strip-shaped fan-out portion 14 of Fig. 2 or Fig. 3 includes only two metal layers, it is not intended to limit the invention.
  • the strip-shaped fan-out portion 14 may also include two or more metal layers.
  • the fan-out portion is formed by two metal layers, so that the resistance of the fan-out portion can be reduced, the loss of the driving signal can be reduced, and power consumption can be reduced. Further, since the width of the first metal layer is larger than the width of the second metal layer, it is also possible to prevent the strip-shaped fan-out portion from being short-circuited during exposure, development or etching.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种驱动电路，该驱动电路包括驱动芯片（11，12），用于提供驱动信号；至少两个条状扇出部（14），条状扇出部（14）用于将驱动信号传递到显示面板（13）的显示区域中；其中条状扇出部（14）包括第一金属层（141）和第二金属层（143），第二金属层（143）位于第一金属层（141）上，第二金属层（143）的宽度小于第一金属层（141）的宽度。还提供了一种包括该驱动电路的显示装置。该驱动电路和显示装置能够减少条状扇出部（14）的电阻，降低功耗，防止条状扇出部（14）短路。

Description

一种驱动电路及显示装置 技术领域
本发明涉及显示器技术领域，特别是涉及一种驱动电路及显示装置。
 背景技术
随着显示面板的不断发展，面向显示面板的驱动技术也在不断地发展。现有的显示面板通常包括阵列基板和彩膜基板。在阵列基板上设置有多条数据线、多条扫描线以及由数据线和扫描线限定的多个像素单元。
为了驱动显示面板，通常在显示面板的外围设置有驱动芯片，也即驱动芯片位于非显示区域。该驱动芯片用于提供驱动信号，该驱动信号包括数据信号和扫描信号。该驱动芯片通过扇出线与扫描线和数据线连接，以将驱动信号传递至数据线和扫描线。但是现有的扇出线为单层金属层，导致阻抗比较大，从而增大了功耗。
因此，有必要提供一种驱动电路及显示装置，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种驱动电路及显示装置，能够降低功耗。
 技术解决方案
为解决上述技术问题，本发明提供一种驱动电路，其包括：
驱动芯片，用于提供驱动信号；
至少两个条状扇出部，所述条状扇出部用于将所述驱动信号传递到显示面板的显示区域中；
其中所述条状扇出部包括第一金属层和第二金属层，所述第二金属层位于所述第一金属层上，所述第一金属层与所述第二金属层之间设置有绝缘层，所述第一金属层与所述第二金属层电性连接，所述第二金属层的宽度小于所述第一金属层的宽度，所述第一金属层的厚度大于所述第二金属层的厚度。
本发明还提供一种驱动电路，其包括：
驱动芯片，用于提供驱动信号；
至少两个条状扇出部，所述条状扇出部用于将所述驱动信号传递到显示面板的显示区域中；
其中所述条状扇出部包括第一金属层和第二金属层，所述第二金属层位于所述第一金属层上，所述第二金属层的宽度小于所述第一金属层的宽度。
在本发明的驱动电路中，所述第一金属层的宽度与所述第二金属层的宽度之间的差值位于预设宽度范围内。
在本发明的驱动电路中，所述第一金属层的宽度范围为6-8微米。
在本发明的驱动电路中，所述第二金属层的宽度范围为1-6微米。
在本发明的驱动电路中，所述第一金属层与所述第二金属层之间设置有绝缘层，所述第一金属层与所述第二金属层电性连接。
在本发明的驱动电路中，所述绝缘层的厚度位于预设厚度范围内。
在本发明的驱动电路中，所述绝缘层的厚度范围为2000-6000埃米。
在本发明的驱动电路中，所述第一金属层的厚度大于所述第二金属层的厚度。
在本发明的驱动电路中，所述第一金属层的长度位于第一预设长度范围内。
本发明还提供一种显示装置，其包括：显示面板和上述驱动电路。
 有益效果
本发明的驱动电路及显示装置，通过两层金属层制作得到扇出部，从而可以减小扇出部的电阻，降低了驱动信号的损耗，进而降低了功耗。此外，由于第一金属层的宽度大于第二金属层的宽度，还可以在曝光、显影或蚀刻过程中，防止条状扇出部短路。
 附图说明
图1为本发明显示装置的结构示意图。
图2为图1中条状扇出部沿AA’方向的剖面示意图。
图3为图1中条状扇出部的俯视图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是以相同标号表示。
请参照图1至3，图1为本发明显示装置的一结构示意图。
如图1所示，驱动电路包括驱动芯片和至少两个条状扇出部14；其中驱动芯片包括源驱动芯片11和栅驱动芯片12，源驱动芯片11用于提供数据信号，栅驱动芯片12用于提供扫描信号。
各条状扇出部14之间间隔设置，且相邻两个条状扇出部14之间的间距位于预设间距范围内。该条状扇出部14连接驱动芯片和显示面板13，用于将该驱动信号传递到显示面板13的显示区域中；比如在驱动芯片的引脚通过条状扇出部14分别与数据线或者扫描线的端部连接。具体地，该条状扇出部14将扫描信号传递至该显示面板13的扫描线中，以及将数据信号传递至该显示面板13的数据线中。
如图2所示，该条状扇出部14包括第一金属层141和第二金属层143，该第二金属层143位于该第一金属层141上。第一金属层141的材料与第二金属层142的材料可以为金属材料，优选为铜，从而能够更好地减小条状扇出部14的阻抗。第一金属层141的材料与第二金属层142的材料可以相同。
为了更好地减少阻容延迟，在一实施方式中，该第一金属层141的厚度H1大于该第二金属层142的厚度H2。
为了更好地减少阻容延迟，在一实施方式中，该第一金属层141的长度位于第一预设长度范围内，该第二金属层142的长度位于第二预设长度范围内。
为了更好地减少阻容延迟，在一实施方式中，该第一金属层141与该第二金属层142之间的间距L位于预设间距范围内。而间距太大或者太小都不利于减少阻容延迟。
如图3所示，该第二金属层143的宽度W2小于该第一金属层141的宽度W1。如果两层金属层的宽度相等，在对第二金属层曝光、显影或蚀刻过程中，容易导致条状扇出部出现短路，因此将第二金属层143的宽度设置为小于第一金属层141的宽度，可以防止条状扇出部14出现短路，从而降低生产成本。
为了更好地防止条状扇出部出现短路，该第一金属层141的宽度W1与该第二金属层143的宽度W2之间的差值位于预设宽度范围内。如果两者宽度差值较小，在曝光、显影或蚀刻过程中，不能很好地防止条状扇出部短路。如果两者宽度差值较大，会增大扇出区域的尺寸，从而增大了面板的尺寸。
为了更好地防止条状扇出部出现短路，该第一金属层141的宽度W1范围为6-8微米。
为了更好地防止条状扇出部出现短路，该第二金属层143的宽度W2范围为1-6微米，进一步优选为2-6微米。
返回图2，该第一金属层141与该第二金属层143之间设置有绝缘层142，该第一金属层141与该第二金属层143电性连接。结合图1，具体地该第二金属层143通过过孔15与第一金属层141电性连接。
为了更好地减少阻容延迟，该绝缘层142的厚度位于预设厚度范围内。比如，该绝缘层142的厚度范围为2000-6000埃米。其中，该绝缘层142的材料为SiO2或者氮化硅。由于厚度太大或者太小都不利于减少阻容延迟。
可以理解的，在该第二金属层143上也设置有绝缘层144，用于保护第二金属层143。
可以理解的，尽管图2或者图3中的条状扇出部14仅包括两层金属层，但是并不能对本发明构成限定。该条状扇出部14也可以包括两层以上的金属层。
本发明的驱动电路，通过两层金属层制作得到扇出部，从而可以减小扇出部的电阻，降低了驱动信号的损耗，进而降低了功耗。此外，由于第一金属层的宽度大于第二金属层的宽度，还可以在曝光、显影或蚀刻过程中，防止条状扇出部短路。
本发明还提供一种显示装置，如图1所示，本实施例的显示装置包括显示面板13和驱动电路，其中显示面板13包括阵列基板、彩膜基板以及位于阵列基板和彩膜基板之间的液晶层（图中未示出），其中阵列基板包括数据线和扫描线以及由数据线和扫描线限定形成的多个像素单元。
如图1所示，驱动电路包括驱动芯片和至少两个条状扇出部14；其中驱动芯片包括源驱动芯片11和栅驱动芯片12，源驱动芯片11用于提供数据信号，栅驱动芯片12用于提供扫描信号。
各条状扇出部14之间间隔设置，且相邻两个条状扇出部14之间的间距位于预设间距范围内。该条状扇出部14连接驱动芯片和显示面板13，用于将该驱动信号传递到显示面板13的显示区域中；比如在驱动芯片的引脚通过条状扇出部14分别与数据线或者扫描线的端部连接。具体地，该条状扇出部14将扫描信号传递至该显示面板13的扫描线中，以及将数据信号传递至该显示面板13的数据线中。
如图2所示，该条状扇出部14包括第一金属层141和第二金属层143，该第二金属层143位于该第一金属层141上。第一金属层141的材料与第二金属层142的材料可以为金属材料，优选为铜，从而能够更好地减小条状扇出部14的阻抗。
为了更好地减少阻容延迟，在一实施方式中，该第一金属层141的厚度H1大于该第二金属层142的厚度H2。
为了更好地减少阻容延迟，在一实施方式中，该第一金属层141的长度位于第一预设长度范围内，该第二金属层142的长度位于第二预设长度范围内。
为了更好地减少阻容延迟，在一实施方式中，该第一金属层141与该第二金属层142之间的间距L位于预设间距范围内。由于间距太大或者太小都不利于减少阻容延迟。
如图3所示，该第二金属层143的宽度W2小于该第一金属层141的宽度W1。如果两层金属层的宽度相等，在对第二金属层曝光、显影或蚀刻过程中，容易导致条状扇出部出现短路，因此将第二金属层143的宽度设置为小于第一金属层141的宽度，可以防止条状扇出部14出现短路，从而降低生产成本。
为了更好地防止条状扇出部出现短路，该第一金属层141的宽度W1与该第二金属层143的宽度W2之间的差值位于预设宽度范围内。如果两者宽度差值较小，在曝光、显影或蚀刻过程中，不能很好地防止条状扇出部短路。如果两者宽度差值较大，会增大扇出区域的尺寸，从而增大了面板的尺寸。
为了更好地防止条状扇出部出现短路，该第一金属层141的宽度W1范围为6-8微米。
为了更好地防止条状扇出部出现短路，该第二金属层143的宽度W2范围为1-6微米，进一步优选为2-6微米。
返回图2，该第一金属层141与该第二金属层143之间设置有绝缘层142，该第一金属层141与该第二金属层143电性连接。结合图1，具体地该第二金属层143通过过孔15与第一金属层141电性连接。
为了更好地减少阻容延迟，该绝缘层142的厚度位于预设厚度范围内。比如，该绝缘层142的厚度范围为2000-6000埃米。其中，该绝缘层142的材料为SiO2。由于厚度太大或者太小都不利于减少阻容延迟。
可以理解的，在该第二金属层143上也设置有绝缘层144，用于保护第二金属层143。
可以理解的，尽管图2或者图3中的条状扇出部14仅包括两层金属层，但是并不能对本发明构成限定。该条状扇出部14也可以包括两层以上的金属层。
本发明的显示装置，通过两层金属层制作得到扇出部，从而可以减小扇出部的电阻，降低了驱动信号的损耗，进而降低了功耗。此外，由于第一金属层的宽度大于第二金属层的宽度，还可以在曝光、显影或蚀刻过程中，防止条状扇出部短路。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (16)

  1. 一种驱动电路，其包括：
    驱动芯片，用于提供驱动信号；
    至少两个条状扇出部，所述条状扇出部用于将所述驱动信号传递到显示面板的显示区域中；
    其中所述条状扇出部包括第一金属层和第二金属层，所述第二金属层位于所述第一金属层上，所述第一金属层与所述第二金属层之间设置有绝缘层，所述第一金属层与所述第二金属层电性连接，所述第二金属层的宽度小于所述第一金属层的宽度，所述第一金属层的厚度大于所述第二金属层的厚度。
  2. 根据权利要求1所述的驱动电路，其中所述第一金属层的宽度与所述第二金属层的宽度之间的差值位于预设宽度范围内。
  3. 根据权利要求1所述的驱动电路，其中所述第一金属层的宽度范围为6-8微米。
  4. 根据权利要求1所述的驱动电路，其中所述第二金属层的宽度范围为1-6微米。
  5. 根据权利要求1所述的驱动电路，其中所述绝缘层的厚度位于预设厚度范围内。
  6. 根据权利要求1所述的驱动电路，其中所述绝缘层的厚度范围为2000-6000埃米。
  7. 根据权利要求1所述的驱动电路，其中所述第一金属层的长度位于第一预设长度范围内。
  8. 一种显示装置，其包括：显示面板和驱动电路，所述驱动电路包括：
    驱动芯片，用于提供驱动信号；
    至少两个条状扇出部，所述条状扇出部用于将所述驱动信号传递到显示面板的显示区域中；
    其中所述条状扇出部包括第一金属层和第二金属层，所述第二金属层位于所述第一金属层上，所述第二金属层的宽度小于所述第一金属层的宽度。
  9. 根据权利要求8所述的显示装置，其中所述第一金属层的宽度与所述第二金属层的宽度之间的差值位于预设宽度范围内。
  10. 根据权利要求8所述的显示装置，其中所述第一金属层的宽度范围为6-8微米。
  11. 根据权利要求8所述的显示装置，其中所述第二金属层的宽度范围为1-6微米。
  12. 根据权利要求8所述的显示装置，其中所述第一金属层与所述第二金属层之间设置有绝缘层，所述第一金属层与所述第二金属层电性连接。
  13. 根据权利要求12所述的显示装置，其中所述绝缘层的厚度位于预设厚度范围内。
  14. 根据权利要求13所述的显示装置，其中所述绝缘层的厚度范围为2000-6000埃米。
  15. 根据权利要求8所述的显示装置，其中所述第一金属层的厚度大于所述第二金属层的厚度。
  16. 根据权利要求8所述的显示装置，其中所述第一金属层的长度位于第一预设长度范围内。
PCT/CN2017/073326 2017-01-10 2017-02-13 一种驱动电路及显示装置 Ceased WO2018129776A1 (zh)

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