Stereoscopic display device

Patent metadata

Field	Value
Publication number	US-10871683-B2
Application number	US-201816208359-A
Country	US
Kind code	B2
Filing date	Dec 3, 2018
Priority date	Dec 29, 2017
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

Abstract

A stereoscopic display device may include a light control panel on a display panel, so that light emitted from the display panel may emit in a direction different from adjacent frame and the visibility of the stereoscopic image which is provided to user may be increased without the deterioration of the resolution.

First claim

What is claimed is:

1. A stereoscopic display device comprising:
a display panel;
a display driver driving the display panel;
a light control panel disposed on the display panel, the light control panel including a water layer and an oil layer which are stacked between a first control substrate and a second control substrate;
a control panel driver controlling the light control panel,
a combiner on the light control panel, the combiner having inclination with respect to a surface of the light control panel; and
a convex lens between the light control panel and the combiner,
wherein the combiner includes a beam splitter, so that a virtual image generated by the display panel and the light control panel is realized on an actual image generated by light passing through the combiner,
wherein the control panel driver changes a moving direction of light passing through the light control panel during each frame,
wherein the light control panel further includes lower control electrodes on the first control substrate, a first upper control electrode on the second control substrate, and a second upper control electrode spaced away from the first upper control electrode on the second control substrate,
wherein the water layer is disposed between the lower control electrodes, and the oil layer is disposed between the first upper control electrode and the second upper control electrode,
wherein a moving direction of light emitted from the display panel is changed during each frame and the light emitted from the display panel is crossed between the display panel and the light control panel, and
wherein the light control panel changes the moving direction of the light emitted from the display panel to be parallel with each other.

2. The stereoscopic display device according to claim 1 , wherein the display panel displays an image in a time-division by the display driver.

3. The stereoscopic display device according to claim 1 , wherein the water layer is in contact with the first control substrate, and the oil layer is in contact with the second control substrate.

4. The stereoscopic display device according to claim 1 , wherein an interface between the water layer and the oil layer is changed during each frame.

5. The stereoscopic display device according to claim 1 , wherein a voltage difference between the first upper control electrode and the second upper control electrode is changed by the control panel driver during each frame.

6. The stereoscopic display device according to claim 1 , wherein the display panel includes a light-emitting element between a first display substrate and a second display substrate.

7. The stereoscopic display device according to claim 1 , further comprising a micro-lens array between the display panel and the light control panel.

Assignees

• Lg Display Co Ltd

Inventors

• Jung Sung-Min
• Kang Hoon

Classifications

• G02B30/24 Primary

  involving temporal multiplexing, e.g. using sequentially activated left and right shutters · CPC title

• G02B30/33

  involving directional light or back-light sources · CPC title

• G02F1/134309 Primary

  characterised by their geometrical arrangement · CPC title

• H04N13/305 Primary

  using lenticular lenses, e.g. arrangements of cylindrical lenses · CPC title

• G02F1/13471

  in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells (G02F1/13475 takes precedence) · CPC title