China-based Visionox was established by Tsinghua University and other investors in 2001 with an aim to develop and manufacture OLED display and lighting panels. Visionox is producing both PMOLED and AMOLED displays.
In May 2018 Visionox demonstrated its first Micro-LED display. The company operates a full-process microLED production line. In 2022, Visionox spun-off its microLED business into a new company called Vistar.
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Visionox-Vistar moves in equipment in its pilot microLED production line
In 2021, Visionox's Vistar announced that its full-process pilot microLED production line is now capable of producing displays, from driver backplane, through transfer process to full module production. The LED chips themselves are produced by a third party.
Today we understand that Vistar's Chenxian Optoelectronics (its JV that is in charge of the microLED line) has held a ceremony as it has moved in equipment to its mass production line. It is reported that the company will install more than 200 pieces of equipment in the next 2 weeks. It could be that Vistar is scaling up its line, or maybe it is also adding capabilities.
Visionox-Vistar shows its latest microLED prototypes at Displayweek 2024
Visionox showed a large 88-inch tiled microLED display, with a pixel pitch of 0.5 mm, based on 25 micron LEDs and an LTPS backplane. The display feature low (<5%) reflectance and a brightness of up to 1,200 nits.
Vistar also showed a 14.5" panel, a single module that is used to build the 88-inch TV. Visionox says that it developed a dedicated microLED driver IC, that enables 10-bit color depth and "True Color" presentation. Vistar says that it reaches production yields of 99.995% in its mass transfer process, and a repair process that enables perfect displays.
Visionox shows a 58-inch tiled microLED display prototype
Visionox demonstrated a new microLED display prototype, a 58-inch tiled display, made from a matrix of 16 modules (each 14.5" in size). The display offers a 10-bit color depth, 240Hz refresh rate, and an ultra-high contrast.
Visionox says that the new display uses 25 um microLED chips, and utilizes China's first dedicated microLED driver IC and a TFT backplane (likely LTPS). From the image we have, it seems as if there are much more than 16 modules, and the seams are quite visible, this seems to be an early-stage display prototype.
Visionox reveals that its full-process pilot line is now capable of producing microLED displays
Visionox reveals that the company's MicroLED pilot line, which is the first full-process line built in China, is now capable of producing displays, from driver backplane, through transfer process to full module production. The LED chips themselves are produced by a third party.
Last year Visionox has established a subsidiary called Chenxian Optoelectronics to handle its MicroLED project. Visionox's strategy for the next five years is to focus on OLED and MicroLED displays (the company does not produce LCD displays, so this strategy is not a surprise).
Visionox demonstrates its first Micro-LED prototype
During the SID DisplayWeek, China-based OLED developer Visionox demonstrated its first Micro-LED prototype.
Visionox did not disclose any details. The prototype display was a tiny monochrome display.
