Johannes 't Hart

Title: Innovations of Johannes 't Hart in Light Emitting Devices

Introduction

Johannes 't Hart is a notable inventor based in Den Bosch, Netherlands. He has made significant contributions to the field of light emitting devices, particularly through his innovative patent that enhances internal out-coupling mechanisms.

Latest Patents

One of his key patents is titled "Light emitting device with improved internal out-coupling and method of providing the same." This invention focuses on a method of manufacturing a light emitting device that features an intermediate layer with a modulated surface. The process involves exposing a flat glass surface to a saturated etching fluid or creating local changes in the chemical surface composition of the glass substrate. By removing the etching fluid, ultrafine particles are either deposited or defects are generated, which lead to preferential columnar cone-shaped growth. This results in small bumps on the surface of the intermediate layer, which are then over-coated with layers of the light emitting element, inducing sufficient scattering through subsequent reflections.

Career Highlights

Johannes 't Hart is associated with Oledworks GmbH, where he continues to develop innovative technologies in the field of light emitting devices. His work has been instrumental in advancing the efficiency and effectiveness of these devices.

Collaborations

He has collaborated with notable colleagues such as Hans-Peter Loebl and Joanna Maria Elisabeth Baken, contributing to a dynamic research environment that fosters innovation.

Conclusion

Johannes 't Hart's contributions to light emitting devices exemplify the impact of innovative thinking in technology. His patent reflects a commitment to enhancing device performance through advanced manufacturing techniques.