Optical display system and electronics apparatus

Patent metadata

Field	Value
Publication number	US-12169280-B2
Application number	US-202218277130-A
Country	US
Kind code	B2
Filing date	Mar 1, 2022
Priority date	Mar 1, 2021
Publication date	Dec 17, 2024
Grant date	Dec 17, 2024

Abstract

An optical display system and an electronics apparatus are disclosed. The optical display system comprises: a display unit, which generate a first image light and a second image light, wherein the first image light is in a first polarization state and the second image light is in a second polarization state and the first image light and the second image light are generated by a same display panel; a resolution enhancement optic unit, which enhances the resolution of the first image light with respect to the second image light; and a magnifying optic unit, which magnify the first and second image lights from the resolution enhancement optic unit.

First claim

What is claimed is:

1. An optical display system, comprising:
a display panel, adapted to generate a first image light and a second image light in a time division multiplexed manner, wherein the first image light and the second image light are generated by the same display panel,
a polarization modulator, arranged optically downstream of the display panel, and adapted to modulate the first image light and the second image light into a first polarization state and a second polarization state in a time division multiplexed manner corresponding to that of the display panel,
a resolution enhancement optic unit, arranged optically downstream of the polarization modulator, and adapted to enhance a resolution of the first image light with respect to the second image light;
a magnifying optic unit, arranged optically downstream of the resolution enhancement optic unit, and adapted to magnify the first and second image lights from the resolution enhancement optic unit; and
a polarized deflector, placed before the magnifying optic unit,
wherein the resolution enhancement optic unit includes a partial reflector, a first optic unit and a polarized reflector,
wherein the partial reflector is adapted to transmit the first image light and the second image light without changing their polarization states and reverse the polarization states thereof when reflecting them,
wherein the first optic unit includes at least one refractive lens to provide needed resolution enhancement for the first image light,
wherein the polarized reflector is adapted to reflect an image light of a first polarization with keeping its polarization state and transmit an image light of a second polarization without changing its polarization state,
wherein the polarized deflector comprises two Pancharatnam-Berry deflectors arranged on both sides of the polarized reflector, and
wherein the polarized deflector is electronically controlled and adapted to deflect an image with designed angle, thereby shifting a position of a foveated area formed by the first image light to match a position of a viewer's eye.

2. The optical display system according to claim 1 , wherein the display panel is adapted to generate the first image light and the second image light simultaneously without increasing a screen refresh rate.

3. The optical display system according to claim 2 , wherein the polarization modulator is a pixelated spatial polarization modulator,
wherein the pixelated spatial polarization modulator is adapted to separate the first image light and the second image light into the first polarization state and the second polarization state.

4. The optical display system according to claim 1 , wherein the display unit is adapted to generate the first image light and the second image light with a same resolution.

5. The optical display system according to claim 4 , wherein the resolution enhancement optic unit is adapted to enhance the resolution of the first image light by more than 4 times.

6. An electronics apparatus, including the optical display system according to claim 1 .

Assignees

• Univ Central Florida Res Found Inc
• Goertek Inc

Inventors

• Yin Kun
• He Ziqian
• Wu Shin-Tson
• Li Kun

Classifications

• G02B2027/0147

  comprising a device modifying the resolution of the displayed image · CPC title

• G02B27/286

  for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another (G02B5/3083 takes precedence; light guide coupling means utilising polarising elements G02B6/34) · CPC title

• G02B27/0093

  with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking · CPC title

• G02B27/0172 Primary

  characterised by optical features · CPC title