NEAR-EYE DISPLAY DEVICE

• US 20190086584A1
• Filed: 09/15/2017
• Published: 03/21/2019
• Est. Priority Date: 09/15/2017
• Status: Active Grant

• Current Assignee: Sung-Yang Wu
• Original Assignee: Sung-Yang Wu
• Inventors: Wu, Sung-Yang, Cheng, Wei-Min
• Granted Patent: US 10,379,266 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 27/0075 with means for altering, e.g. increasing, the depth of field or depth of focus
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 3/0056 arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses G02B3/0043 takes precedence; miniaturised objectives for electronic devices employing wafer level optics G02B13/0085
• CPC Class Codes: G02B 5/005 Diaphragms for cameras G03B9/02

Abstract

A near-eye display device includes a display panel and a plurality of light modulation units. The display panel includes a plurality of display pixel units configured to emit display light. The light modulation units are disposed on a light emitting surface of the display panel, and each of the light modulation units is disposed corresponding to one of the display pixel units. Each of the light modulation units is configured to direct the display light emitted from the corresponding display pixel unit to an eye of a user, and a width of the display light directed to the eye of the user is smaller than the pupil size of the eye. The user may still receive clear images when the near-eye display is out of focus because the display light directed to the eye has the width smaller than the pupil size.

Claims

1. A near-eye display device, comprising:

a display panel comprising a plurality of display pixel units configured to emit display light; and

a plurality of light modulation units disposed on a light emitting surface of the display panel, wherein each of the light modulation units is disposed corresponding to one of the display pixel units, each of the light modulation units is configured to direct the display light emitted from the corresponding display pixel unit to an eye of a user, and a width of the display light directed to the eye of the user is smaller than the pupil size of the eye.

2. The near-eye display device according to claim 1, wherein the width of the display light directed to the eye of the user is smaller than 1.5 millimeters (mm).

3. The near-eye display device according to claim 1, wherein each of the light modulation units comprises:

a microlens; and

a light shielding layer having a pinhole disposed between the light emitting surface of the display panel and the microlens, wherein each of the microlenses is disposed corresponding to only one of the display pixel units and only one of the pinholes, and each of the pin holes is smaller than the corresponding microlens.

5. The near-eye display device according to claim 3, wherein the display light emitted from each of the display pixel units passes through the corresponding pinhole, and a width of each of the pinholes is smaller than the pupil size of the eye.

6. The near-eye display device according to claim 5, wherein the width of each of the pinholes is smaller than 1.5 mm.

7. The near-eye display device according to claim 5, wherein the width of the display light directed to the eye of the user before entering the eye of the user is larger than the width of each of the pinholes and smaller than the pupil size of the eye.

8. The near-eye display device according to claim 1, wherein each of the light modulation units is disposed corresponding to only one of the display pixel units.

9. The near-eye display device according to claim 1, wherein an emitting angle of the display light directed by one of the light modulation units is different from an emitting angle of the display light directed by another one of the light modulation units.

10. The near-eye display device according to claim 1, wherein each of the light modulation units comprises a microlouver configured to constrain an emitting angle of the display light.

11. The near-eye display device according to claim 10, wherein a width of each of the microlouvers is smaller than the pupil size of the eye.

12. The near-eye display device according to claim 11, wherein the width of each of the microlouvers is smaller than 1.5 mm.

13. The near-eye display device according to claim 10, wherein the emitting angle of the display light directed by one of the microlouvers is different from the emitting angle of the display light directed by another one of the microlouvers.

14. The near-eye display device according to claim 1, wherein the display panel comprises a liquid crystal display (LCD) panel, an organic light emitting diode (OLED), or a micro-LED display panel.

4. (canceled)