Electrophoretic display device and method of fabricating the same

An electrophoretic display device, comprising:

• a gate line on a substrate having a display region, where a plurality of pixel regions are defined, and a non-display region at a periphery of the display region;
• a gate pad electrode in the non-display region on the substrate and connected to an end of the gate line;
• a gate insulating layer on an entire surface of the substrate including the gate line;
• a data line on the gate line and crossing the gate line to define the pixel regions;
• a thin film transistor including a gate electrode connected to the gate line, a semiconductor layer on the gate insulating layer and corresponding to the gate electrode, a source electrode connected to the data line and disposed on the semiconductor layer and a drain electrode spaced apart form the source electrode and disposed on the semiconductor layer;
• a data pad electrode in the non-display region on the gate insulating layer and connected to an end of the data line;
• a passivation layer including a drain contact hole, a gate pad contact hole and a data pad contact hole over the thin film transistor, the passivation layer has a first thickness in the display region and a second thickness smaller than the first thickness in the non-display region, the drain contact hole, the gate pad contact hole and the data pad contact hole exposing the drain electrode, the gate pad electrode and the data pad electrode, respectively, the passivation layer includes a double-layered structure having an organic insulating material layer and an inorganic insulating material layer, the organic insulating material layer in the display region is thicker than the organic insulating material layer in the non-display region;
• a pixel electrode on the passivation layer in each pixel region and contacting the drain electrode through the drain contact hole;
• an electrophoresis film on the pixel electrode and corresponding to the display region;
• a color filter layer on the electrophoresis film;
• and
• a passivation sheet on the color filter layer.

An electrophoretic display device, comprising:

• a gate line on a substrate having a display region, where a plurality of pixel regions are defined, and a non-display region at a periphery of the display region;
• a gate pad electrode in the non-display region on the substrate and connected to an end of the gate line;
• a gate insulating layer on an entire surface of the substrate including the gate line;
• a data line on the gate line and crossing the gate line to define the pixel regions;
• a thin film transistor including a gate electrode connected to the gate line, a semiconductor layer on the gate insulating layer and corresponding to the gate electrode, a source electrode connected to the data line and disposed on the semiconductor layer and a drain electrode spaced apart form the source electrode and disposed on the semiconductor layer;
• a data pad electrode in the non-display region on the gate insulating layer and connected to an end of the data line;
• a passivation layer including a drain contact hole, a gate pad contact hole and a data pad contact hole over the thin film transistor, the passivation layer has a first thickness in the display region and a second thickness smaller than the first thickness in the non-display region, the drain contact hole, the gate pad contact hole and the data pad contact hole exposing the drain electrode, the gate pad electrode and the data pad electrode, respectively, the passivation layer includes a triple-layered structure having a first inorganic insulating material layer, an organic insulating material layer and a second inorganic insulating material layer in the display region;
• a pixel electrode on the passivation layer in each pixel region and contacting the drain electrode through the drain contact hole;
• an electrophoresis film on the pixel electrode and corresponding to the display region;
• a color filter layer on the electrophoresis film;
• and
• a passivation sheet on the color filter layer.

A method of fabricating an electrophoretic display device, comprising:

• forming a thin film transistor on a substrate including a display region, non-display region at a periphery of the display region and a cut region at an outer side of the non-display region;
• forming a passivation layer covering the thin film transistor;
• forming a pixel electrode on the passivation layer and connected to the thin film transistor;
• attaching an electrophoresis film including an adhesive layer, an ink layer having a charged particle, a common electrode and a base film such that the adhesive layer contacts the pixel electrode;
• and
• directly forming a color filter layer on the electrophoresis film.

An electrophoretic display device, comprising:

• a thin film transistor on a substrate including a display region, non-display region at a periphery of the display region and a cut region at an outer side of the non-display region, the thin film transistor positioned in the display region;
• a passivation layer covering the thin film transistor and having a first thickness in the display region and a second thickness, which is smaller than the first thickness, in the non-display region;
• a pixel electrode on the passivation layer and connected to the thin film transistor, the pixel electrode perfectly covering the thin film transistor;
• an electrophoresis film attached to the pixel electrode and covering the display region;
• and
• a color filter layer formed on the electrophoresis film.