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

A light guide component and eye tracking technology, applied in the field of human-computer interaction, can solve the problems that eye tracking modules cannot be controlled in real time, occupy a large volume, and cannot meet the needs of thinning eye tracking modules.

Active Publication Date: 2018-12-11
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, maki

Method used

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

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...

Claims

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Application Information

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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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