Monolithic electroluminescent device, especially an LED chip, has a row of emission zones individually associated with decoupling elements for decoupling radiation from the device

    公开(公告)号:DE19911717A1

    公开(公告)日:2000-09-28

    申请号:DE19911717

    申请日:1999-03-16

    Abstract: Monolithic electroluminescent device, having a row of emission zones (4) individually associated with radiation decoupling elements (5) for decoupling electromagnetic radiation from the device. A monolithic electroluminescent device has an active layer sequence (2) followed, in the radiation emission direction (9), by a radiation decoupling layer (13) adjoining a medium of refractive index (nM) less than that (nS) of the decoupling layer material. The active layer sequence (2) has several emission zones (4) which are arranged alongside one another in relation to the emission direction (9) and each of which is associated with a radiation decoupling element (5) of the decoupling layer (13) for decoupling electromagnetic radiation, produced in the emission zones (4), from the device. An Independent claim is also included for production of the above device. Preferred Features: The decoupling elements (5) consist of radiation transparent semiconductor material and are monolithically produced by conventional wet or dry chemical etching.

Patent Agency Ranking