Recently, BJXL Optoelectronics Technology Co., Ltd. has realized the research and development and batch preparation of high-quality grating waveguide display optical devices, which has further promoted the development of grating waveguide technology.
Grating waveguide display optical chip silicon substrate
Grating waveguides are mainly used in AR smart glasses terminals. AR technology, as the next-generation new mobile display technology, belongs to the high-precision technology field supported by the state. Grating waveguide has the advantages of large field of view, good display effect, small size, light weight, and low mass production cost. It will become the mainstream direction of near-eye display optical technology development in the future.
The grating waveguide display module is composed of a grating waveguide lens and a micro-projector optical machine. The main purpose is to introduce the displayed image to the human eye without difference. Currently, BJXL has commercially produced grating waveguide display modules with a field of view of 40 degrees and a thickness of only 1.5mm. Its light transmittance is more than 80%, which is equivalent to placing a nearly 100-inch transparent screen within 3 meters of the human eye. While ensuring high display quality, the appearance is light and thin, and the weight is only 6g, making AR headsets as light as ordinary glasses. The larger picture and excellent adaptability make it more comfortable and natural to wear. In addition, BJXL has developed an ultra-small micro projector based on Micro LED micro display technology, which is small in size, and has the advantages of high contrast and low power consumption.
Micro LED grating waveguide display module
BJXL continues to develop core technologies, and continues to consolidate and strengthen its advantages in the field of grating waveguides. Shi Xiaogang said that the core technology of grating waveguides will continue to expand design solutions, iteratively upgrade grating waveguide products, and achieve low-cost mass production. At the same time, the company will focus on exploring multiple directions such as portable medium field angle grating waveguide modules and functional large field angle grating waveguide modules, and at the same time lay out a variety of micro-projection display solutions such as Lcos, Micro LED, and LBS. Make it better meet the needs of AR application scenarios.