Abstract: An electroluminescent display device can include a plurality of pixels arranged in a matrix form along a first direction and a second direction, each pixel including first, second, and third sub-pixels, and a first bank pattern having a first height, and a second bank pattern having a second height, the first height being smaller than the second height, wherein the second bank pattern is parallel in two directions. The first bank pattern defines same color sub-pixels of different pixels, and wherein the second bank pattern defines different color sub-pixels of the same pixel. The second bank pattern includes first patterns disposed between the adjacent different color sub-pixels along a third direction crossing the first and second directions and between the adjacent different color sub-pixels along a fourth direction crossing the first, second, and third directions and second patterns disposed between the second sub-pixels adjacent to each other.

Abstract: An electroluminescent display device can include a plurality of pixels arranged in a matrix form along a first direction and a second direction, each pixel including first, second, and third sub-pixels, and a first bank pattern having a first height, and a second bank pattern having a second height, the first height being smaller than the second height, wherein the second bank pattern is parallel in two directions. The first bank pattern defines same color sub-pixels of different pixels, and wherein the second bank pattern defines different color sub-pixels of the same pixel. The second bank pattern includes first patterns disposed between the adjacent different color sub-pixels along a third direction crossing the first and second directions and between the adjacent different color sub-pixels along a fourth direction crossing the first, second, and third directions and second patterns disposed between the second sub-pixels adjacent to each other.

Abstract: An electroluminescent display device includes first, second, third and fourth pixels arranged in a matrix form along a first direction and a second direction, each of the first, second, third and fourth pixels including first, second and third sub-pixels; a light-emitting diode disposed at each of the first, second and third sub-pixels and including a first electrode, a light-emitting layer and a second electrode, wherein the second sub-pixel is disposed between the first sub-pixel and the third sub-pixel; and a first bank is disposed between adjacent sub-pixels of a same color, and a second bank is disposed between adjacent sub-pixels of different colors, wherein the second sub-pixels of the first, second, third and fourth pixels surround the first sub-pixels of the first, second, third and fourth pixels.

Abstract: An electroluminescent display device includes first, second, third and fourth pixels arranged in a matrix form along a first direction and a second direction, each of the first, second, third and fourth pixels including first, second and third sub-pixels; a light-emitting diode disposed at each of the first, second and third sub-pixels and including a first electrode, a light-emitting layer and a second electrode, wherein the second sub-pixel is disposed between the first sub-pixel and the third sub-pixel; and a first bank is disposed between adjacent sub-pixels of a same color, and a second bank is disposed between adjacent sub-pixels of different colors, wherein the second sub-pixels of the first, second, third and fourth pixels surround the first sub-pixels of the first, second, third and fourth pixels.

Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: An organic light emitting diode display device includes a first substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank on edges of the first electrode and surrounding each of the plurality of pixel regions, the bank including a lower layer having a hydrophilic property and an upper layer having a hydrophobic property; an organic emitting layer on the first electrode and in each of the plurality of pixel regions surrounded by the bank; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: An organic light emitting diode display device includes a first substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank on edges of the first electrode and surrounding each of the plurality of pixel regions, the bank including a lower layer having a hydrophilic property and an upper layer having a hydrophobic property; an organic emitting layer on the first electrode and in each of the plurality of pixel regions surrounded by the bank; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: An organic light emitting diode display device includes a first substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank on edges of the first electrode and surrounding each of the plurality of pixel regions, the bank including a lower layer having a hydrophilic property and an upper layer having a hydrophobic property; an organic emitting layer on the first electrode and in each of the plurality of pixel regions surrounded by the bank; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: An ink-jet print apparatus adapted to prevent stain defects is disclosed. The ink-jet print apparatus includes: first to third head portions configured to form red, green, and blue color filters on a substrate; a plurality of nozzles provided in each of the first to third head portions; a camera, above the substrate, configured to photograph a transmittance of each of sub-pixels in which the red, green, and blue are formed; a light emission unit, under the substrate opposite to the camera, configured to emit light on the sub-pixel; and an injection quantity control unit configured to compare the transmittance of each sub-pixel photographed by the camera with a previously prepared reference transmittance and to compensate the injection quantity of the nozzle.

Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: An organic light emitting diode display device includes a first substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank on edges of the first electrode and surrounding each of the plurality of pixel regions, the bank including a lower layer having a hydrophilic property and an upper layer having a hydrophobic property; an organic emitting layer on the first electrode and in each of the plurality of pixel regions surrounded by the bank; and a second electrode on the organic emitting layer and covering an entire surface of the display region.

Abstract: A method for coating a polyimide layer includes, placing a substrate on a print table; jetting polyimide liquid onto the substrate from a jetting surface provided over the print table; and wiping the jetting surface by moving a wiper from one side of the jetting surface to another side of the jetting surface while the wiper contacts the jetting surface, wherein the wiper is made of one of a perfluoro-based polymer.

Abstract: An ink-jet print apparatus adapted to prevent stain defects is disclosed. The ink-jet print apparatus includes: first to third head portions configured to form red, green, and blue color filters on a substrate; a plurality of nozzles provided in each of the first to third head portions; a camera, above the substrate, configured to photograph a transmittance of each of sub-pixels in which the red, green, and blue are formed; a light emission unit, under the substrate opposite to the camera, configured to emit light on the sub-pixel; and an injection quantity control unit configured to compare the transmittance of each sub-pixel photographed by the camera with a previously prepared reference transmittance and to compensate the injection quantity of the nozzle.

Abstract: An apparatus for coating polyimide layer includes a print table for affixing a substrate thereon, an inkjet head installed over the print table and having a jetting surface with a plurality of nozzles for jetting polyimide liquid onto the substrate, a polyimide liquid supply tank for receiving a polyimide liquid therein, a cleaning liquid supply tank for receiving cleaning liquid, a wiper cleaning bar adjacent to the cleaning liquid supply tank, and a wiper movable from one side of the jetting surface to an other side of the jetting surface while the wiper contacts the jetting surface of the inkjet head, and rotatable to dip the wiper into the cleaning liquid and then contact the wiper cleaning bar so as to remove cleaning liquid from the wiper.