Light guiding assembly and manufacturing method thereof, eyeball tracking module and method thereof and video glasses

Abstract

The embodiment of the invention provides a light guiding assembly and a manufacturing method thereof, an eyeball tracking module and a method thereof and video glasses. The light guiding assembly is arranged in the eyeball tracking module and comprises a first substrate, a second substrate, a first electrode, a second electrode and at least one liquid crystal structure. The first substrate and thesecond substrate are oppositely arranged. The first electrode is arranged on the first substrate. The at least one liquid crystal structure is arranged between the second electrode on the second substrate and the first electrode on the first substrate. The liquid crystal structure comprises liquid crystal molecules. The first electrode and the second electrode are used for controlling deflectiondirections of the molecules by applied voltage such that light rays meeting the threshold value condition emitted to the light guiding assembly can shoot up along the pre-set direction. Through the light guiding assembly in the eyeball tracking module, the occupation size of the eyeball tracking module is reduced. The requirement for the thin type of the eyeball tracking module is met. Additionally, the real-time controllable feature of the eyeball tracking module is achieved. Resources are saved.

Description

technical field [0001] The embodiments of the present invention relate to the field of human-computer interaction technology, and in particular to a light guide component and its manufacturing method, an eye tracking module and its method, and video glasses. Background technique [0002] Eye tracking technology is a technology that uses mechanical, electronic, optical and other detection methods to obtain the subject's current "gaze direction". With the rapid development of computer vision, artificial intelligence technology and digital technology, eye tracking technology has become a current hot research field and has a wide range of applications in the field of human-computer interaction, for example, it can be applied to virtual reality, augmented reality, vehicle assisted driving, user Experience, cognitive impairment diagnosis and other fields. [0003] The inventors have found through research that the existing eye-tracking modules used to implement eye-tracking techn...

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Problems solved by technology

[0003] The inventors have found through research that the existing eye-tracking modules used to implement eye-tracking technology will keep tracking the eyeballs once they start working, and will continue to track even when eye-tracking is not needed, making the existing eye-tracking modules unable to Real-time controllable, resulting in a waste of resources. In addition, the existing eye tracking module occupies a large volume, which cannot meet the overall thinning requirements of the eye tracking module.

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