发明名称 Light emitting device with a layer sequence having electrode surfaces and partial regions
摘要 A radiation emitting device includes a substrate and a layer sequence disposed on top of the substrate. The layer sequence includes a first electrode surface with a first contact for applying a voltage, at least one functional layer that emits radiation during operation, and a second electrode surface. In the layer sequence, a plurality of partial regions is present that is modified in such a way that the emission of radiation visible to an external observer therefrom is interrupted. The distribution density of these partial regions can vary depending on their distance from the contact.
申请公布号 US8749134(B2) 申请公布日期 2014.06.10
申请号 US201213425164 申请日期 2012.03.20
申请人 OSRAM Opto Semiconductors GmbH 发明人 Klein Markus;Schindler Florian;Millard Ian Stephen;Beh Sok Gek
分类号 H01J1/63;H01J63/04 主分类号 H01J1/63
代理机构 代理人
主权项 1. A light emitting device, comprising: a substrate; and a layer sequence disposed on the substrate, the layer sequence comprising: a first electrode surface on the substrate with a first contact and a second contact;at least one functional layer, which emits light during operation;a second electrode surface on the at least one functional layer, wherein the second electrode surface comprises a third contact and a fourth contact; anda plurality of partial regions in the layer sequence, wherein the layer sequence is modified by the partial regions in such a way that the emission of light visible to an outside observer is interrupted, wherein a distribution density of each partial region varies depending on a distance of that partial region from the first contact; and electrically conducting conductive paths that are arranged in the partial regions and that, emanating from the first contact and/or the second contact and/or the third contact and/or the fourth contact, extend across the first and/or second electrode surface; wherein adjacent conductive paths comprise different lengths, and a length distribution of the conductive paths emanating from the first and/or second contact and/or the third and fourth contact, in each case, comprises at least one maximum and one minimum; and wherein the maxima and minima of the length distribution of the conductive paths emanating from the first and second contact and/or from the third and fourth contact are located opposite each other.
地址 Regensburg DE