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Mar 5, 2024
META Technology 2.0, the Pinnacle of Bright, Precise, and Detailed Picture Quality
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What is OLED
Self-luminous display that emits light on its own.
Self-emissive
OLED(Organic Light Emitting Diode) is self-emissive technology. Unlike local dimming technology in LCD, the pixel dimming technology in OLED also enables each pixel to control its brightness independently from other pixel, showcasing perfect picture quality without a halo.
LCD
Local dimming is a technology that controls the light source of backlight blocks or zones.
OLED
Pixel dimming is a technology that allows every individual pixel to independently darken or brighten the smallest units of the image.
Principle of OLED Self-lighting
OLED is an organic light emitting diode that lights up in response to an electric current. The hole(+) and electron(-) injected from the anode and cathode recombine in the emissive layer to form an exciton and illuminate.
- HIL : Hole Injection Layer
- HTL : Hole Transport Layer
- EML : Emission Layer
- ETL : Electron Transport Layer
- EIL : Electron Injection Layer
- Exciton : A bound state of an electron and an electron hole
No Backlight
The self-emissive OLED is slim and light as it does not require a backlight, liquid crystals, color filters, or other structural components.
LCD
- BLU (Back Light Unit) is a lighting unit that distributes light evenly across an LCD panel.
- POL (Polarizer) is a film that filters white light from the backlight unit, adjusting the direction of the light.
- CELL is a small individual panel cut out to an appropriate size for the product.
OLED
- Glass
- Film
- TFT & OLED
- Encap
- Film (Anti Reflection Film) is attached to enhance visibility and resolution.
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TFT (Thin Film Transistor) acts as a switch to turn individual light-emitting pixels on and off.
OLED (Organic Light-Emitting Diode) is a self-luminous electronic circuit element that uses light generated by the energy loss of an exciton after each electron and hole. - Encap (Encapsulation Technology) protects organic light-emitting diodes (OLEDs) from shock, moisture, and impurities.
The Values of OLED Characteristics
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High contrast ratio displays the brightest white and the darkest black for a deeper and more detailed expression.
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OLED does not require a backlight or other structural components that decrease light purity, allowing a detail of color expression.
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Eyes are less burdened as harmful light is reduced to less than half of LCDs and OLED does not require a flicker-inducing driving method.
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OLED contains just 10% of plastic compared to LCDs and has 90% recyclability.
OLED Experts
“OLED is a piece of art”
Dr. Ching W. Tang
Professor at University of Rochester and HongKong University of Science and Technology.
“It will become the dominant display technology”
Dr. Raymond W. Soneira
Display Evaluation Expert, President of Display Mate.
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