Light guide component and manufacturing method, eye tracking module and method, video glasses

A light-guiding component and eye-tracking technology, applied in the field of human-computer interaction, can solve the problems of waste of resources, uncontrollable eye-tracking modules in real time, and large footprint.

Active Publication Date: 2021-04-09
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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  • Light guide component and manufacturing method, eye tracking module and method, video glasses
  • Light guide component and manufacturing method, eye tracking module and method, video glasses
  • Light guide component and manufacturing method, eye tracking module and method, video glasses

Examples

Experimental program
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Effect test

Embodiment 1

[0070] figure 1 Schematic diagram of the structure of the light guide assembly provided for the embodiment of the present invention Figure 1 ,Such as figure 1 As shown, the light guide assembly provided by the embodiment of the present invention is set in the eye tracking module, and includes: a first substrate 1 and a second substrate 2 oppositely arranged, a first electrode 3 arranged on the first substrate 1, a set The second electrode 4 on the second substrate 2 and at least one liquid crystal structure 5 disposed between the first electrode 3 and the second electrode 4, the liquid crystal structure 5 includes liquid crystal molecules (not shown in the figure).

[0071] Wherein, the first electrode 3 and the second electrode 4 are used to control the deflection direction of the liquid crystal molecules through the applied voltage, so that the light directed to the light guide assembly meeting the threshold condition is emitted along a predetermined direction.

[0072] I...

Embodiment 2

[0102] Based on the inventive concepts of the foregoing embodiments, Figure 5 A schematic structural diagram of the eye tracking module provided for the embodiment of the present invention, such as Figure 5 As shown, the embodiment of the present invention also provides an eye tracking module, which is set in the video glasses, wherein the eye tracking module includes: a transmitting component 10, a light guiding component 20, a receiving component 30 and a main control component (not shown in the figure) show).

[0103] Specifically, the emitting component 10 is used to emit invisible light to the light guide component 20; the light guide component 20 is used to emit the invisible light directed to the light guide component along a predetermined direction; the receiving component 30 is used to receive the non-visible light reflected by the eyeball. Visible light generates electrical signals under the irradiation of invisible light; the main control component is used to rec...

Embodiment 3

[0144] Based on the above examples, Figure 8 The flow chart of the manufacturing method of the light guide assembly provided by the embodiment of the present invention, such as Figure 8 As shown, the manufacturing method of the light guide assembly provided by the embodiment of the present invention specifically includes the following steps:

[0145] Step S100 , providing a first substrate, and forming a first electrode on the first substrate.

[0146] Optionally, the material for making the first substrate may be glass, plastic, or polyimide, which is not limited in this embodiment of the present invention.

[0147] Specifically, forming the first electrode on the first substrate includes: forming a groove on the first substrate through a laser process or a photolithography process, depositing a transparent conductive film in the groove, and processing the transparent conductive film through a patterning process to form a second electrode. an electrode.

[0148] Optional...

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Abstract

Embodiments of the present invention provide a light guide component and its manufacturing method, an eye tracking module and method, and video glasses, wherein the light guide component is arranged in the eye tracking module and includes: a first substrate and a second substrate oppositely arranged , a first electrode disposed on the first substrate, a second electrode disposed on the second substrate, and at least one liquid crystal structure disposed between the first electrode and the second electrode, the liquid crystal structure comprising liquid crystal molecules; wherein the first The electrode and the second electrode are used to control the deflection direction of the liquid crystal molecules through the applied voltage, so that the light directed to the light guide component meeting the threshold condition is emitted along a predetermined direction. In the embodiment of the present invention, a light guide component is provided in the eye tracking module, which not only reduces the occupied volume of the eye tracking module, meets the overall thinning requirement of the eye tracking module, but also realizes the real-time controllability of the eye tracking module. , saving resources.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/133G02F1/1339G02F1/1343G02B27/00
CPCG02B27/0093G02F1/13306G02F1/1339G02F1/134309G06F3/013G02F1/1326G02F1/133377G02F2203/11G02F2201/30G02B6/003G02F1/1343
Inventor 王晨如张浩刘亚丽董瑞君张雪冰栗可陈丽莉马占山
Owner BOE TECH GRP CO LTD
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