This year’s LG LCD TVs—not including the Super UHD LCD TVs—encompass three UHD model lines and one new FHD line. All but one use IPS (in-plane switching) LCD panels, which yield better off-axis performance but generally higher black levels than VA (vertical alignment) panels. For some reason, the 70″ UK6500 uses a VA panel. And all are edgelit rather than using FALD (full array with local dimming) backlighting.
All three UHD model lines support HDR10 and HLG high dynamic-range content, and a feature called 4K Active HDR emulates dynamic metadata, which can result in a better overall HDR picture because each scene can have its own metadata rather than a single set of metadata for the entire program—or no metadata at all with HLG. A feature called HDR Effect expands the dynamic range of SDR content.
The entry-level UK6300 will include screen sizes of 43″, 49″, 50″, 55″, and 65″, and only the two largest sizes will provide “local dimming” with their edgelit backlights. The step-up UK6500 will be available in 43″, 50″, 55″, 65″, 70″, 75″, and 86″ screen sizes, but only the 55″, 65″, and 70″ models will offer “local dimming.” Both of these model lines are actually HDR-compatible, which means they can accept an HDR10 or HLG signal and even emulate dynamic metadata with 4K Active HDR, but they are not true HDR-capable displays.
The top-of-the-line UK7700 will include screen sizes of 49″, 55″, and 65″ using a Nano Cell panel, and all sizes will offer “local dimming.” It will also feature full-blown HDR performance with 4K Active HDR and Dolby Vision.
The UK7700 and all but two sizes of the UK6500 use RGB panels, while the UK6300 and 55″ and 65″ UK6500 use an RGBW panel. Many argue that RGBW panels do not provide full UHD resolution, since each pair of adjacent pixels shares a white subpixel. AVS Forum Senior Editor Mark Henninger wrote about this here, including the results of his own tests of whether or not RGBW degrades the image quality of test patterns and real-world content.
Also at CES 2018, LG is introducing one new model line of full-HD (1080p) LCD TV, the LK5400, in 32″, 43″, and 49″ screen sizes. It offers Active HDR for HDR10 content (if and when 1080p HDR content becomes available), and webOS with Smart Assistant, which requires a separate Google Home device. The two step-down lines from last year will remain in the lineup. The entry-level LJ5000 will be available in 32″ and 43″ screen sizes, while the LJ5100 will be available only in a 49″ size. The LJ5500 will come in four sizes—32″, 43″, 49″, and 55″—and it will add webOS 3.5 smart-TV functionality, which all of the UHD models have.
As usual for CES, no pricing or availability for the new models was announced.