公开(公告)号：US06699728B2

公开(公告)日：2004-03-02

申请号：US09989363

申请日：2001-11-20

申请人： Ewald Guenther ,  Lim Hooi Bin ,  Soh Ed Vin ,  Tan Hou Siong ,  Hagen Klausmann

发明人： Ewald Guenther ,  Lim Hooi Bin ,  Soh Ed Vin ,  Tan Hou Siong ,  Hagen Klausmann

IPC分类号： H01L2100

CPC分类号： H01L27/3283 ,  H01L2251/5338

摘要： An OLED device using improved pillars to facilitate patterning of a conductive layer is described. Conventional use of pillars to pattern electrodes encounters shorting problems due to piling of polymer material at the base of the pillars. This piling deteriorates the profile of the pillars which adversely impacts the ability of the pillars to pattern the conductive layer to form the electrodes. The present invention avoids the shorting problem by separating the pillars into at least first and second sub-pillars. By providing a relatively narrow gap between the sub-pillars, the amount of polymers filling the area between the gap is small. This prevents at least the sidewalls of the pillars facing the gap from being deteriorated by polymer pile-up, thus ensuring that the conductive layer is discontinuous between the sub-pillars.

摘要翻译： 描述了使用改进的支柱以促进导电层的图案化的OLED器件。 柱状图案电极的常规使用遇到由于在柱的基部堆积聚合物材料而导致的短路问题。 这种打桩使柱的轮廓恶化，这对立柱的图形导电层形成电极的能力产生不利影响。 本发明通过将支柱分成至少第一和第二子支柱来避免短路问题。 通过在子柱之间提供相对窄的间隙，填充间隙之间的区域的聚合物的量很小。 这防止了面向间隙的柱的至少侧壁被聚合物堆积降低，从而确保导电层在子柱之间是不连续的。