Launched in the year 2022, the OLED77B2PUA is a 77" 4K TV from LG. It features a True 10-bit OLED panel.
The maximum resolution it can achieve is 3840 x 2160 with a refresh rate of 120 Hz and a pixel density of 57 ppi.
After screen size and resolution, the next most important specification to look for in a display is its Color Reproduction Accuracy (defined by its color gamut specification).
This TV doesn't provide a color gamut specification, so we have to take a guess.Since the TV comes with an OLED panel, there is no need to worry about color accuracy. Because Any OLED panel will always come with over 100% sRGB coverage.
Understanding the Color Gamut Specification
Color gamut specification of a display is a measure of the range of colors that the TV can show.
A TV with poor color reproduction will produce undersaturated colors that will not be pretty to look at.
It is specified in different units - sRGB(most popular), NTSC, DCI P3 Adobe RGB, rec.2020.
But don't worry, here is a chart that will help you choosing a TV with good color accuracy.
Now, after color gamut, the static contrast ratio of a TV holds almost equal role in picture quality.
Understanding Static Contrast
The static contrast ratio of a TV corresponds to its Black levels. A Display with low static contrast ratio (<1000:1) will not produce deep blacks. Apart from this, such TVs may suffer from backlight bleeds such as below:The image is an example of another display, it is not this one
Obviously this will rob your viewing experience considerably, especially in a dark room.
Also, static contrast ratio and resolution go hand in hand when it comes to details. To put it into perspective, a TV with low contrast ratio will show both dark gray and black as black, thus lesser detail overall.
If given a choice, always prefer a FHD TV with high contrast ratio over a 4K TV with low contrast ratio.
This TV comes with a static contrast ratio of Infinity:1. That's a plus for OLED TVs. So no need to worry about this.
HDR is also supported on this TV in form of HLG (Hybrid Log Gamma), Dolby Vision, Dolby Vision IQ and HDR10 Pro.
Coming to brightness, it is can produce a maximum brightness of 250 nits.
If you are planning to use your TV solely for content consumption, you can safely ignore these specifications. But if you are also going to use the TV for gaming or use it as a PC monitor, you would want to take a TV that features the lowest input lag and response time.
The input lag on the LG OLED77B2PUA is 5 ms and its minimum response time is 1 ms. For a TV, its the best you can get for gaming.
Understanding Input lag and response time
This lag is the latency at which inputs changes the content of the screen. For casual Non-FPS games, input lag doesn't matter much.
For best of both worlds, get a TV that has an input lag and response time of < 20ms.
Dimensions and Ergonomics
The vertical and horizontal measurements of this TV are 67.83 inches and 41 inches respectively. Speaking of thickness, it is 2.18 inches thick.
It weighs approximately 26.7 KGs and 3.3 kgs extra if you include stand.
Now, speaking of ergonomics — VESA mount is supported on this TV with an interface size of 400 x 200 mm. The unit doesn't come with Swivel, Tilt or Pivot support.
Hardware and Audio
The chipset of this TV is powered by 4-Core CPU. However, LG didn't provide any specification about the RAM on the TV's specsheet.
To power its UI, the TV runs webOS 22 Operating System.
For display connectivity, LG has provided two HDMI 2.0 ports, two HDMI 2.1 ports and one S/PDIF port on this TV.
To connect USB devices, it includes two USB 2.0 ports. Other connectivity ports include — 1x RS232 (C), 1x Cable/Antenna In (F-type female) and 1x Ethernet RJ45.
Wireless connectivity options on the LG OLED77B2PUA include Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct, Bluetooth 5.0 and DLNA.
Coming to audio, LG has provided 2 x 10W speakers on the OLED77B2PUA.
In terms of power consumption, the TV uses 157.39W on average and 0.5W on standby.
Both 110V and 220V outlets are supported on this unit.