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Active matrix substrate and display device

  • US 10,643,560 B2
  • Filed: 06/28/2019
  • Issued: 05/05/2020
  • Est. Priority Date: 01/21/2013
  • Status: Active Grant
First Claim
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1. An active matrix substrate comprising:

  • a plurality of data lines and a plurality of scanning lines that are arranged in a matrix;

    a plurality of switching elements that are provided on each at a corresponding crossing of the plurality of data lines with the plurality of scanning lines; and

    a plurality of pixels that include pixel electrodes that are respectively connected to the plurality of switching elements, whereina plurality of terminals are provided to respectively input external signals to the plurality of data lines or the plurality of scanning lines,a plurality of signal lines are defined in a line region between a matrix region in which the plurality of data lines and the plurality of scanning lines are arranged in the matrix and a terminal region in which the plurality of terminals are arranged, and the line region is defined so that a line pitch becomes narrower in a direction from the matrix region to the terminal region,one side of the matrix region is parallel to one side of the active matrix substrate where the plurality of terminals are provided,one end of each of the plurality of signal lines that are parallel to the one side of the matrix region is connected to drive the data line or the scanning line, and the other end is connected to one of the plurality of terminals,each of the plurality of signal lines includes a first line portion provided on a matrix region side, a second line portion provided on a terminal region side, and a connection portion that connects the first line portion and the second line portion,the first line portion and the second line portion of one of two adjacent signal lines of the plurality of signal lines are made of a first conductive layer and a second conductive layer, respectively, which are different from each other, and the first line portion and the second line portion of the other of the two adjacent signal lines are made of the second conductive layer and the first conductive layer, respectively,a position of the connection portion of each of the plurality of signal lines is determined in accordance with a layout position of the respective signal line in the line region, andthe plurality of signal lines include a first line group in which the signal lines are connected to the terminals by bending the second line portions having a first pitch, and a second line group in which the signal lines are connected to the terminals by bending the first line portions having a second pitch.

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