What is OLED ?
An Organic Light-Emitting Diode (OLED), also known as organic electroluminescent (Organic EL) diode,is a light-emitting diode in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current. This organic layer is situated between two electrodes; typically, at least one of these electrodes is transparent. OLEDs are used to create digital displays in devices such as television screens, computer monitors, and portable systems such as smartphones and handheld game consoles. (Wikipedia).
There are two main Families of OLED –
- PMOLED (Passive Matrix OLED)
- AMOLED (Active Matrix OLED )
An OLED display can be driven with a passive-matrix (PMOLED) or active-matrix (AMOLED) control scheme.
In the PMOLED scheme, each row and line in the display is controlled sequentially, one by one, whereas AMOLED control uses a thin-film transistor (TFT) backplane to directly access and switch each individual pixel on or off, allowing for higher resolution and larger display sizes.
OLED is fundamentally different from LED which is based on a p-n diode.
An OLED display works without a backlight because it emits its own light,
Because OLED displays don’t require backlighting, they can be thinner and weight less than other display technologies.
OLED displays also have a wide viewing angle — up to 160 degrees even in bright light.
4K TV and Mobile displays are example of OLED .
Advantage-
>Better Picture(4K picture),
>Thin displays,
>lower power consumption.
>Precise Color
>HIgher Refresh Rate (than QLED and LED)
Disadvantage-
>Higher cost
>Limited Brightness (than QLED)
>Expensive
OLED TV( 4K ULtra HD Television)
Operated as millions of individually lit pixels.
Good color productions and wider viewing angle.
Great Picture Quality (with less power consumption)
Blur free pictures.
Some of examples of 4K Ultra HD /OLED TVs
LG 121 cm (48 inches) 4K Ultra HD Smart OLED TV 48A2PSA (Rocky Black
Sony Bravia 139 cm (55 inches) XR series 4K Ultra HD Smart OLED Google TV XR-55A80J (Black)
MI Xiaomi 138.8 cm (55 inches) 4K Ultra HD Smart Android OLED VisionTV O55M7-Z2IN (Black)
Sony Bravia 139 cm(55 inch) xr Series 4K Ultra Hd smart OLED Google TV XR-55A80K(black)
Sony Bravia 139 cm (55 inches) XR series 4K Ultra HD Smart OLED Google TV XR-55A80J (Black)
- 4K Ultra HD (3840 x 2160) | Refresh Rate: 120 hertz
- Connectivity: 4 HDMI ports to connect set top box, Blu Ray players, gaming console | 3 USB ports to connect hard drives and other USB devices
- Sound : 30 Watts Output | Acoustic Surface Audio+| 3D Surround Upscaling | Dolby Atmos | Ambient Optimization
- Smart TV Features: Google TV | Hands free Voice Search | Google Play | Chromecast | Netflix | Variable Refresh Rate & Auto Low Latency Mode | Additional Features: Apple Airplay | Apple Homekit |Alexa
- Display: XR Cognitive Processor | 4K HDR
Sony Bravia 139 cm (55 inches) XR Series 4K Ultra HD Smart OLED Google TV XR-55A80K (Black)
- 4K Ultra HD (3840 x 2160) ,Refresh Rate: 120 hertz ,BRAVIA XR OLED
- 4 HDMI & 2 USB ports
- Sound : 50 Watts Output , Acoustic Surface Audio+ 5.1 Channel – 3D Surround Upscaling ,Dolby Atmos, 2 Subwoofers
- Smart TV Features: Google TV ,Watchlist ,Ok Google ,Google Play ,Chromecast ,Built In Mic .
- Display: XR Cognitive Processor ,4K HDR .
LG 121 cm (48 inches) 4K Ultra HD Smart OLED TV 48A2PSA (Rocky Black)
- 4K Ultra HD (3840×2160) ,AI 4K Upscaler.
- Display: 4K OLED ,Self-LIT Pixels ,Dolby Vision IQ
- Wi-Fi ,3 HDMI ports , 2 USB ports , Bluetooth 5.0
- Sound: 20 Watts Output , 2.0 Channel Speaker | Dolby Atmos ,AI Sound Pro ,Built-in Stereo Surround Sound
- Smart TV Features: AI ThinQ & WebOS 22 with User Profiles, Built-in Google Assistant & Alexa ,Apple Airplay 2 & Homekit ,Game Optimizer & Dashboard
MI Xiaomi 138.8 cm (55 inches) 4K Ultra HD Smart Android OLED VisionTV O55M7-Z2IN (Black)
- 4K Ultra HD (3840 x 2160) Resolution Refresh Rate : 60 Hertz
- Wi-Fi 6
- 3 HDMI & 2 USB ports Bluetooth 5.0
- Sound: 30 Watts Output ,8 Speaker Setup – 4 Active and 4 Passive drivers ,Dolby Atmos.
- Smart TV : Android TV 11 ,Language Universe (16+ Languages) ,India’s Top 10 .
- 3GB RAM + 32GB Storage
- Display: 4K HDR ,Self-Illuminating Pixels Dolby Vision IQ
LG 139 cms (55 inches) Objet Collection LX1 Posé Series 4K Ultra HD Smart OLEDevo TV 55LX1QPSA (Beige)
- 4K Ultra HD (3840×2160) ,Refresh Rate : 120 Hertz
- Connectivity: 3 HDMI & 2 USB ports ,Wi-Fi (Built-in) Bluetooth 5.0 ,LAN
- Sound: 40 Watts Output , 4.0 Channel Speaker , Dolby Atmos
- Smart TV Features: LG webOS Smart TV, α9 Gen5 AI Processor with AI Picture Pro & AI 4K Upscaling.
- NVIDIA G-SYNC, VRR, AMD FreeSync
