Goertek Optical Technology Co., Ltd.

Zhang, Shizhuang

Xin Cheng

Yi Rao

Chao Jiang

Rudong Wei

Zhentao Fan

Lang Shen

Xiao Wu

Shizhuang Zhang

Zhiqin Gao

Ming Han

Disclosed are a light guide device, an optical display system, and a display device. The light guide device includes a substrate and a first diffraction structure provided at the substrate. The first diffraction structure includes a first grating. The first grating includes a plurality of first grating units provided at intervals of a first period Palong a first vector direction uand at intervals of a second period Palong a second vector direction u. The first vector direction uis intersected with the second vector direction u, the first period Pis longer than the second period P, forming unequal periods in two vector directions, and the first period Pis at least 1.5 times the second period P

Light guide device, optical display system and display device

Disclosed are a light guide device, a light guide assembly and a display equipment. The light guide device includes a substrate including two opposite surfaces and a sidewall connected between the two surfaces; a coupling-out pupil expansion region provided at the surface; and a reflection layer, wherein a reflection interface of the reflection layer is towards an interior of the substrate and is provided on a diffraction light path of the coupling-out pupil expansion region. The coupling-out pupil expansion region is configured to perform multiple diffraction light splits to coupling-in light coupled into the substrate, and the reflection interface is cooperated with the coupling-out pupil expansion region to reflect the light after multiple diffraction light splits through the coupling-out pupil expansion region and reflect the light through the coupling-out pupil expansion region for coupling-out imaging.

Light guide device, light guide assembly and display equipment

Growing community of inventors

Weifang, China

Xin Cheng