46.1: New Concept for Large Area White OLED Production for Lighting

Hoffmann, Uwe; Landgraf, Heike; Campo, Manuel del; Bruch, Juergen; Keller, Stefan; Koenig, Michael E. D.

doi:10.1889/1.3500561

Cited by 3 publications

(4 citation statements)

References 5 publications

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“…It is anticipated that the cost of OLED light lighting will continue to decrease as demand increases and manufacturing technology continues to improve. 4,38,39 …”

Section: Device Lifetimementioning

confidence: 99%

Organic light-emitting-diode lighting overview

Tyan¹

2011

J. Photon. Energy

116

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Abstract. For organic light-emitting-diode (OLED) lighting to be successful, it is critical that it be properly positioned in the marketplace. It is also critical that both the performance and cost be competitive against other lighting technologies in the selected marketplace. This presentation gives an overview of OLED lighting technology from these perspectives. It shows that OLED lighting products should be positioned as luminaires and not light bulbs, which affects both the performance and price expectations. Laboratory OLED devices already demonstrated efficacies that are more than competitive against luminaires based on other lighting technologies. There is potential for substantial further improvement in efficacy. The greatest opportunities come from light-extraction efficiency improvements and from an improved blue emitting system. There has been great recent progress in the OLED device lifetime. To be acceptable as luminaires, however, OLED may need even more lifetime improvements. Not all the improvements need to come from OLED technology improvement, however. We discuss other means to effectively improve the lifetime of OLED lighting panels and show why there is optimism that, with volume production, OLED lighting can be competitive against other luminaires even on the first-cost basis. C 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).

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“…It is anticipated that the cost of OLED light lighting will continue to decrease as demand increases and manufacturing technology continues to improve. 4,38,39 …”

Section: Device Lifetimementioning

confidence: 99%

Organic light-emitting-diode lighting overview

Tyan¹

2011

J. Photon. Energy

116

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“…This stack structure was proposed by Merck in collaboration with IPMS and utilizes Merck's own high performance OLED materials. These materials were then evaporated using Gen4 linear evaporation sources [5]. The evaporation test procedure for each material included measurement of the dynamic rate as a function of temperature, validation of the stability and accuracy of the automatic rate control, layer thickness uniformity at production thicknesses and deposition rates, measurement of both the powder and film density, determination of the material utilization efficiency and chemical analysis of the coated material and residual material in the crucible with HPLC and NMR respectively.…”

Section: / H Landgrafmentioning

confidence: 99%

68.2: Lowering Cost for OLED Lighting Manufacturing

Landgraf

Hoffmann

Campo

et al. 2012

Symp Digest of Tech Papers

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Manufacturing of Organic Light Emitting Diodes (OLED) forlighting is still some distance from the industry recognized cost target of 100 € /m². Within the government funded Light In-Line (LILi) project, a team of material supplier, machine manufacturers and basic researchers have investigated potential ways to reduce OLED manufacturing costs. The concept developed within the LILi-project shows that a competitive cost structure can now be reached.

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“…For this reason, a source of linear type has been developed that offers significant advantages over the conventional point source deposition approach . The source is located in a position remote from the substrate and the process is operated by scanning the source under the substrate.…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, a source of linear type has been developed that offers significant advantages over the conventional point source deposition approach. 5,6 The source is located in a position remote from the substrate and the process is operated by scanning the source under the substrate. To secure stable film thickness uniformity on the substrate area when the source of linear type is used, the geometry of the source and the substrate must be arranged properly.…”

Section: Introductionmentioning

confidence: 99%

Simulation of thin film thickness distribution for thermal evaporation process using a scanning linear source

Kim

Pahk

2017

Jnl Soc Info Display

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Thermal evaporation process is the main process involved in the production of OLED displays and with the trends toward larger substrate size and display resolution, film thickness uniformity must be carefully controlled in order to implement exact pixel data. To secure stable film thickness uniformity on the substrate area, thin films are deposited on large‐area glass substrates via thermal evaporation process using a linear source. We designed a linear source and mathematical model was developed to describe the system with a focus on the linear source. Then, system parameters were determined to guarantee uniform thickness using computer‐based simulation, replacing wasteful actual experiments, followed by carrying out experiments based on the determined parameters. After the deposition process, data from the mathematical model and experiments was compared and the resulting agreement was good, verifying the validity of the proposed method. Consequently, by applying the proposed method, display manufacturing process related to thermal evaporation can be controlled within a tight tolerance in order to maximize the production yield rate.

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46.1: New Concept for Large Area White OLED Production for Lighting

Cited by 3 publications

References 5 publications

Organic light-emitting-diode lighting overview

Organic light-emitting-diode lighting overview

68.2: Lowering Cost for OLED Lighting Manufacturing

Simulation of thin film thickness distribution for thermal evaporation process using a scanning linear source

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