Recently, people present higher standard of the luminance and contrast for display system, especially for large UHD display which increasingly demands for HDR 1000 compatible. Compared with the side-emitting LED backlight, direct lit-type backlight can provides higher luminance, but global backlight control cannot satisfy high requirement for the contrast and the power loss. In order to improve the performance the backlight system, the local dimming backlight control with Mini-LED become one of the best choices for us. In this paper, we present a pixel-level local dimming backlight system, which is applied for the 75 inch UHD display system.

This paper mainly introduces the development of 110 inch HDR display based on Mini‐LED technology. In this work, the peak luminace and color gamut were futher improved by using direct‐lit backlight and Quantum dots technology .Moreover, the uniformity of the Mini‐LED display is discussed.

With the rapid development of video technology and the improvement of clients' requirement for video quality,high resolution and large‐format display has become an inevitable development trend for terminal display devices. Concerning about 8K products is becoming popular,products such as cameras, UAVs, broadcasters, editing equipments and display equipments are equipped with 8K display.The article mainly tells about the design of power supply for 8K UHD display system based on FPGA naming XC7K325T. The design of switching circuit and the key factors in the design of multi‐layer board power supply are described in detail, such as current carrying capacity calculation, power channel evaluation, protection, filtering and so on.

With the development of ultra‐high definition (UHD) display technology, the display system can make the picture more appealing and realistic. It is very difficult for us ordinary people to enjoy the traditional famous art works because of its expensive price and the rare amount. Compared with the traditional art works, the price of the novel UHD digital art display system is reasonable. What's more, it can provide the real sense as the realistic paintings. Besides the photo display, the customer also want the system display the UHD video. This paper presents a novel wireless transmission system based on the rk3399 chip from Rockchip with Wi‐Fi module, bluetooth module, ethernet network module and highspeed interface circuit for UHD digital art display, especially for UHD vedio. It is designed that a hardware system with smaller printed circuit board (PCB), lower power loss and lower price. Furthermore, the transmission rate is less than 300ms, which can provide an excellent watch enjoyment.

With the development of ultra‐high definition (UHD) display technology and stereoscopic 3D display technology, 3D ultra‐high monitor will help surgeons obtain the spatial hierarchy of internal tissues, identify tissue surfaces and blood vessels clearly, locate the focus precisely and reduce surgery time. Compared with normal 2D medical monitors, 3D medical monitors will lose more brightness because of the 3D application, so it is necessary to design a high‐brightness backlight system to guarantee the display stability and the accuracy of the diagnosis. This paper presents a novel processing system for 4K UHD 3D medical monitor with the architecture combined with universal SOC (system on a chip) and specialized FPGA (field programmable gate array). A hardware system is designed with high efficiency and reliable brightness stability control for small‐ and medium‐sized monitors. Furthermore, we analyze the two dimming modes of linear dimming and PWM dimming for a better application in medical monitor.