In Micro LED TVs, each pixel contains tiny light emitting diodes. So self-illuminating displays are an inorganic version of OLED. This has solid advantages: like OLEDs (Organic Light Emitting Devices), they switch very quickly, have deep blacks and therefore high contrast as well as an extremely bright, colorful display. And unlike organic displays, there is no burn-in if the image content is displayed on the display for too long.
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With a 136-inch TV (3.45 m screen diagonal) announced at CES and a 108-inch TV (2.75 m screen diagonal) shown on the stand, Hisense belongs to the small circle of micro-LED TV manufacturers. The 4K display has a resolution of 3840 x 2160 pixels and is said to achieve a brightness of up to 10,000 cd/m2. Hisense features what the BT2020 calls a 95 percent larger video color space, with a refresh rate of up to 120Hz and can adapt to graphics card output via VRR (Variable Refresh Rate). Gamers can also expect low latency in gaming mode (ALLM).
Each pixel of Micro LED TV contains tiny inorganic semiconductor diodes that ensure extreme brightness and rich colors.
(Image: Ulrike Kuhlmann, Heise Online)
HDR support
The display also supports HDR 10 and HDR 10+ as well as Dolby Vision for video streaming. A giant display with a diagonal of 3.45 meters (136 in) is expected to be available in 2025; Hisense has not announced the price yet. However, this is likely to be in the six-figure range, because transferring small light-emitting diodes, which are produced on small wafers, to larger display substrates is complex and therefore very expensive.
Mini projector Etoe D2 Pro in testIt is also doubtful who has space for such a big umbrella. This is probably why displays with micro-LED pixels are mainly used in the business sector, for example in reception halls or airports. Until now, manufacturers have not been able to implement micro-LED technology in smaller display diagonals. At least not for reasonable cost, because with a typical living room size, for example, 65 inches, the display should cost the same as LCD or OLED.
Color dimming with mini LEDs
As another innovation, Hisense is showing off an LC display with locally dimmable red, green and blue light-emitting diodes. White light emitting diodes usually shine on the back of the LCD, so the color cannot be distinguished when dim.
RGB diodes have significantly narrower spectra than “white” backlights made from quantum dots or blue LEDs with a yellow phosphor coating. The color filters on the LCD can also be better coordinated with the RGB diodes. This means that the screen achieves a more colorful display, which is further improved by the backlight control, which is separated by color.
Targeted darkening of selected image segments increases contrast in the image, but it also depends on the number of dimming zones. The finer the resolution that can be achieved, the less the blooming occurs.
With RGB LEDs in the backlight of trichroma LCD TVs, Hisense can dim each color channel separately.
(Image: Ulrike Kuhlmann, Heise Online)
Hisense calls its LCDs “Trichroma LED TVs” with dimmable RGB LED backlights. Trichroma televisions of the UX9 series presented at CES have a 116-inch screen diagonal of 2.95 meters. RGB Mini-LED chips enable a slim design; Their controls must align with the pixel refresh. This requires a lot of computing power, which of course an AI chip provides. The manufacturer does not mention the number or prices of dimmable zones; Trichroma TVs are a little more expensive than TVs with traditional backlight – but significantly cheaper than true micro-LED TVs.
In Las Vegas, Samsung and TCL also introduced televisions with such color-differentiated backlight controls.
Heise Median is the Official Media Partner of CES 2025.
(UK)
Slack CES and Gettystock – Photo News of the Week 2/2025
