Product Manager
Aledia
Active-Matrix Local Dimming Backlight Units for Virtual Reality Application
Education: Séverine Chéramy holds an engineering degree having specialized in material science.
Full immersive display technology is widely used in VR devices. In VR applications, LCD has obvious advantages over micro-OLED display technology in terms of lower cost and OLED in terms of higher resolution and better picture quality. Therefore, LCD display technology is and will remain the mainstream of VR display panel technology. Recently, with the continuous progress of LCD technology, problems such as screen door effect caused by low resolution and shadowing and image lag caused by insufficient response speed have been improved, but still need improvement. Usually, the LCD has a backlight module using Passive-Matrix architecture. The number of dimming zones could be increased, but this would make the circuit much more complex, power-hungry and bulky. Aledia, together with the backlighting manufacturer's partners, is developing a local dimming active matrix backlight module with 2,500 miniLEDs, which promises high contrast, low power consumption and yet ultra-compact VR devices. The presentation will introduce the Aledia Digital LED and will detail how this innovative device can meet with VR systems specification.