| abstract |
An organic electroluminescent display device (10) includes a plurality of organic layers (16, 18, 20, 22 and 24) disposed between opposing electrodes (14 and 26). The hole transporting layer (22) comprises a hole transporting material characterized by the general formula: ##STR1## where n, m, and p each independently take the value of 0, 1 or 2; A1 and A2 each represents: n (a) an alkyl group; or n (b) an alkyl substituted with aryl, hydroxy, cyano, alkoxy, halo, or amino group(s); or n (c) an aryl group; or n (d) an aryl group substituted with alkyl, aryl, hydroxy, cyano, alkoxy, phenyl, halo, or amino group(s). |