Which 4K and UHD TFT Displays Are Available for Industrial OEM Designs?
October 24, 2019
We supply 4K UHD TFT displays from 17.3 to 42.5 inches for industrial OEM designs, from AUO, Innolux, and LG, each with a resolution of 3840 x 2160 pixels. Smaller panels use an eDP interface and larger ones V-by-One, and our Prisma-4K TFT controllers turn either into a plug-and-play kit. As part of the FORTEC Group, we source the panels, configure the controller, and add touch, cover glass, and optical bonding in Ronkonkoma, New York.
Why choose a 4K TFT display for an embedded design?
For pixel density. A 4K panel shows fine structures sharply and carries a large amount of information: four Full HD images fit on it unscaled. Scaled content such as fonts also renders more sharply, which makes reading less tiring, and the image does not look pixelated from a short distance. That last point matters most in touch applications, where the user stands right in front of the screen.
Which 4K TFT displays can we supply?
- 17.3 inch, AUO B173ZAN01.0: AHVA wide viewing technology with a symmetrical 178°/178° viewing angle, an integrated LED converter, and a low-power eDP interface. Quantities beyond our stock are checked on request.
- 17.3 inch, Innolux N173DSE-G31: AAS technology with an 89° viewing angle from all directions, and an integrated LED converter in a total depth of only 4 mm. 40-pin eDP interface.
- 23.8 inch, LG LM238WR2-SPE1: IPS with a 178°/178° viewing angle, 98% color gamut, 540 cd/m², and compliance with VESA HDR400. eDP interface.
- 28 inch, Innolux M280DGJ-L30: 300 cd/m², a 160°/170° viewing angle, and an operating range of 0 to 50°C. 8-lane V-by-One interface.
- 42.5 inch, AUO P430QVN02.0: made for information and signage in 24/7 operation, with 700 cd/m², an anti-glare surface for bright ambient light, a 178°/178° viewing angle for portrait or landscape mounting, and an integrated LED converter. 8-lane V-by-One interface.
Two 4K displays we once offered are discontinued: the compact 15.6-inch AUO B156ZAN03.1 and the 40-inch Innolux S400DJ1-KS5. For the larger sizes, check our article on sunlight-readable displays, which covers 55-inch and 75-inch UHD panels at 3500 cd/m².
How do you drive a 4K TFT display?
Through a controller board matched to its interface. The Prisma-4K-01 drives 8-lane V-by-One and 4-lane eDP displays up to 4096 x 2160 at 60 Hz, with VGA, HDMI 2.0, HDMI 1.4, dual DVI, and DisplayPort 1.2 inputs, picture-in-picture, and an operating range of -20 to +60°C. The Prisma-4K-Advanced drives V-by-One and 4-lane or 8-lane eDP displays up to 3840 x 2160 at 60 Hz from DisplayPort 1.4 and HDMI 2.0 inputs, and is rated at an MTBF of 2,443,395 hours under IEC TR 62380.
In a kit, we configure the controller to the exact display before delivery and include all the necessary cables and, where the panel needs one, the LED backlight driver board, so the display can be connected and put into operation directly. Prisma-4K calibrates picture position and color automatically, and speakers connect directly to the board.
Can a 4K display be bonded to a cover glass or touchscreen?
Yes. A matching touchscreen or a protective front glass can be laminated across the full surface of the display with VacuBond® optical bonding, which protects the surface, makes it easy to clean, and works well on frameless displays such as the B173ZAN01.0. Our post on choosing an optical bonding material explains the options.
Tell us the size, the interface your system offers, and where the display will be used, and we will take it from there: we recommend the panel and controller, add touch and bonding, and stay with the project from first samples to series production. When a panel receives an end-of-life notice, we tell our customers early and plan with them: a last-time buy or a qualified replacement before supply runs out. Contact FORTEC US to start.
