The improvement of tandem device performance is attributed to the efficient electron and hole injection from charge generation layer to two adjacent emission units.

叠层发光器件性能的提高与中间电荷产生层向上下两个发光单元有效的电子、空穴注入有关。

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It appears the major sticking point concerns the depth of the memory layer on which data is written: HD-DVD favors a data layer 0.6mm beneath the surface of the disk, the same depth as on the current generation of DVDs.

ENGADGET: DVD format war: Matsushita says Toshiba needs to give up