OLED displays are a new-generation technology utilizing organic compounds and having self-emissive characteristics. OLED displays produce higher contrast images, have a wider viewing angle, faster response and are thinner and more lightweight compared to conventional displays.
Working Principle of OLED
OLED has a simple structure, which has an organic light emitting layer between anodes and cathodes. When a direct current is applied to the device, holes with positive charges are injected from anodes and electrons with negative charges are injected from cathodes into the organic light emitting layer. Then, the organic molecules emit light when the positive hole and the negative electron couple and generate energy in the organic light emitting layer. Because most of the organic materials are insulators and do not easily conduct current, organic light emitting layers need to have very thin structures, approximately 0.1um.
Device Structure of OLED
The typical device structure of OLED is a laminated anode (transparent electrode), a hole injection layer, a hole transport layer, an emitting layer, an electron transport layer, an electron injection layer and a cathode (metal electrode) on the glass substrate. Each layer is stacked on the glass substrate using vacuum deposition technology. Because organic materials are affected by oxygen and moisture, OLED panels are encapsulated by sealing materials such as metal or glass after being produced into layers on the glass substrate.
- Features
- High contrast white color
- High density
- Wide viewing angle
- Reliable COG construction
- Low profile
- Long life, high quality
- -30C to +75C Operating Temp.
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ME25664A OLED Glass
Compact design Crisp image Dependable Specification: |
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GE256X64B-7032B OLED Module Easy to use Easy interface Dependable Specification |
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