Array substrate for electrophoresis type display device and method of manufacturing the same, method of repairing a line of the same

An array substrate for an electrophoresis type display device, comprising:

• a plurality of gate lines on a substrate;
• a gate insulating layer on the plurality of gate lines;
• a plurality of data lines on the gate insulating layer and crossing the plurality of gate lines to define a plurality of pixel regions;
• a thin film transistor corresponding to each pixel region, the thin film transistor including a gate electrode, a semiconductor layer, and source and drain electrodes;
• a first passivation layer on the plurality of data lines;
• a second passivation layer on the first passivation layer, wherein the second passivation layer includes a first hole over the data line, or a second hole over the gate line with at least the gate insulating layer therebetween;
• and
• a pixel electrode on the second passivation layer and connected to the drain electrode, wherein the pixel electrode covers the first hole or the second hole.

A method of manufacturing an array substrate for an electrophoresis type display device, comprising:

• forming a plurality of gate lines on a substrate;
• forming a gate insulating layer on the plurality of gate lines;
• forming a plurality of data lines on the gate insulating layer and crossing the plurality of gate lines to define a plurality of pixel regions;
• forming a thin film transistor corresponding to each pixel region, the thin film transistor including a gate electrode, a semiconductor layer, and source and drain electrodes;
• forming a first passivation layer on the plurality of data lines;
• forming a second passivation layer on the first passivation layer, wherein the second passivation layer includes a first hole over the data line at a side of each pixel region, or a second hole over the gate line at another side of each pixel region with at least the gate insulating layer therebetween;
• and
• forming a pixel electrode on the second passivation layer and connected to the drain electrode, wherein the pixel electrode covers the first hole or the second hole.

A method of repairing an open-circuited gate line or data line of an array substrate for an electrophoresis type display device, wherein the array substrate including:

• a plurality of gate lines on a substrate;
• a gate insulating layer on the plurality of gate lines;
• a plurality of data lines on the gate insulating layer and crossing the plurality of gate lines to define a plurality of pixel regions;
• a thin film transistor corresponding to each pixel region;
• a first passivation layer on the plurality of data lines;
• a second passivation layer on the first passivation layer, wherein the second passivation layer includes a first hole over the data line, or a second hole over the gate line with at least the gate insulating layer therebetween;
• and a pixel electrode on the second passivation layer and connected to the thin film transistor, wherein the pixel electrode covers the first hole or the second hole, wherein a plurality of pixel regions includes first and second pixel regions to repair the open-circuited gate line or third and fourth pixel regions to repair the open-circuited data line,
• the method comprising:
• irradiating a laser beam on the first holes located at both sides, respectively, of an open-circuited portion of the open-circuited gate line, to melt the portions of the pixel electrodes of the first and second pixel regions and remove at least the gate insulating layer whereby the melted portions contact the gate line open-circuited gate line, or irradiating a laser beam on the second holes located at both sides, respectively, of an open-circuited portion of the open-circuited data line, to melt the portions of the pixel electrodes of the third and fourth pixel regions and remove the first passivation layer whereby the melted portions contact the open-circuited data line;
• and
• forming a connection pattern using a laser CVD repair apparatus to connect the pixel electrode of the first pixel region and the pixel electrode of the second pixel region, or to connect the pixel electrode of the third pixel region and the pixel electrode of the fourth pixel region.