Industrial Technology Research Institute

Au Optronics Corporation

Miao-Tsai Chu

Meng-Ting Lee

Mei-Rurng Tseng

Shu-Tang Yeh

Tien-Shou Shieh

Heh-Lung Huang

Jin-Sheng Lin

I-Ho Shen

Kuo-Hui Shen

In an embodiment, a carbazole derivative is provided. The carbazole derivative has formula (I): In formula (I), Ar1 and Ar2 are, independently, substituted or unsubstituted phenyl, naphthalenyl or heteroaryl containing nitrogen, oxygen or sulfur, and R is hydrogen, methyl or t-butyl. In another embodiment, an organic light emitting diode including the carbazole derivative is provided.

Carbazole derivatives and organic light emitting diodes comprising the same

A pixel structure of electroluminescent display panel has a first sub-pixel region, a second sub-pixel region and a third sub-pixel region. The pixel structure of electroluminescent display panel includes a first organic light-emitting layer and a second organic light-emitting layer. The first organic light-emitting layer, which includes a first organic light-emitting material, is disposed at least in the first sub-pixel region and the second sub-pixel region. The second organic light-emitting layer, which includes a second organic light-emitting material and a third organic light-emitting material, is disposed at least in the second sub-pixel region and the third sub-pixel region. The first organic light-emitting layer and the second organic light-emitting layer overlap in the second sub-pixel region. The first sub-pixel region and the third sub-pixel region have different cavity lengths.

Pixel structure of electroluminescent display panel

A white organic light-emitting device is provided by the present invention. The white organic light-emitting device includes an anode, a hole transport layer, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, an electron transport layer and a cathode, wherein the second light-emitting layer is formed between the first and the third light-emitting layers, the emission wavelength of the second light-emitting layer is longer than that of the first and third light-emitting layers, and the host material of the first and third light-emitting layer are different. The white organic light-emitting device of the present invention is capable of effectively increasing the luminous efficiency, reducing operating voltage, and providing color stability.

White organic light-emitting device

A pixel structure of an electroluminescent display panel includes a first sub-pixel region, a second sub-pixel region, a third sub-pixel region and a fourth sub-pixel region having different cavity lengths. The first sub-pixel region and the second sub-pixel region share a first organic light-emitting layer, which can generate a first primary color light in the first sub-pixel region, and a second primary color light in the second sub-pixel region. The third sub-pixel region and the fourth sub-pixel region share a second organic light-emitting layer, which can generate a third primary color light in the third sub-pixel region, and a fourth primary color light in the fourth sub-pixel region. The first primary color light, the second primary color light, the third primary color light and the fourth primary color light have different spectra of wavelength.

Pixel structure of an electroluminescent display panel

An organometallic complex. The organometallic complex has formula (I): wherein A1 is a substituted or non-substituted aromatic heterocyclic group, A2 is a substituted or non-substituted aryl group, A3 is an acetylacetone group or picolinic acid group, and X is selected from the group consisting of fluorine atom, trifluoromethyl, alkoxy, thioalkyl, and amino. The invention also provides an organic electroluminescent device utilizing the organometallic complex.

Organometallic complex and organic electroluminescent devices utilizing the same

An organometallic complex is provided. The organometallic complex is selected from the group consisting of  and wherein C is an acetyl acetone group or picolinic acid group m is 1&#x2dc;3, n is 0&#x2dc;3 and m+n=3, wherein D, E and G are the same or different and selected from the group consisting of H, halogen atoms, trifluoromethyl, Calkyl, Calkyl halide, Caryl and Cheterocyclic ring containing O, N or S.

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Hsin-Chu, Taiwan

Miao-Tsai Chu