摘要:
An electroluminescent device comprised of an anode, a hole transporting layer, a light emitting layer, and a cathode, wherein said light emitting layer contains a component of the formula ##STR1## wherein Ar.sup.1, Ar.sup.2, Ar.sup.3, and Ar.sup.4 are each independently aryl or optionally aliphatic; R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, aliphatic, halogen, and cyano; L is a suitable linking group; and n is a number of from 0 to about 3.
摘要:
A device includes: an anode; a cathode; and a luminescent region between the cathode and the anode, wherein the luminescent region includes an anthracene derivative compound and a triazine derivative compound.
摘要:
An electroluminescence (EL) device containing a number of layers, including two electrodes and positioned between the electrodes a mixed region, a hole transport region, and an electron transport region, wherein the mixed region contains, for example, biphenyl TPD, an electron transport compound and a luminescent compound.
摘要:
An organic light emitting device containing (i) an anode or a first electrode; (ii) a hole transport layer containing, for example, a mixture of a porphyrin and a hole transport material (iii) a mixed region containing a mixture of (1) a hole transport material, and (2) an electron transport material; (iv) a cathode or second electrode, and wherein the organic light emitting device may further contain at least one of (v) an electron transport region interposed between the mixed region and the cathode; and (vi) a thermal protective element coated on one of the anode and cathode.
摘要:
An organic light emitting device includes a mixed region composed of a mixture of a hole transport material and an electron transport material, one of which is an emitter. The organic light emitting device also includes at least one of a hole transport material region and an electron transport material region on the mixed region. An anode contacts the hole transport material region or the mixed region. A cathode contacts the electron transport material region or the mixed region. The hole transport material region and/or the electron transfer material region can be formed with a plurality of layers.
摘要:
An electroluminescent device containing a number of layers with a mixed region of a hole transport compound, and an electron transport compound, and hole and electron transport regions.
摘要:
An organic light emitting device (OLED) has a thick (100 to 250 nanometers) porphyrin buffer layer between the anode and the luminescent region. The thick porphyrin buffer layer in the OLED results in a small increase in device operating voltage, reduces the possibility of OLED shorting and can improve color purity in blue emitting OLEDs due to its significant optical absorption in the red range.