3d image display apparatus and image display method thereof

Patent metadata

Field	Value
Publication number	US-2016337637-A1
Application number	US-201514879224-A
Country	US
Kind code	A1
Filing date	Oct 9, 2015
Priority date	May 14, 2015
Publication date	Nov 17, 2016
Grant date	—

Abstract

A three-dimensional (3D) image display apparatus includes a display panel configured to display a 3D image; a light guide panel disposed on a rear surface of the display panel to emit light to the display panel; a first light source configured to irradiate light toward the light guide panel; a second light source configured to irradiate light toward the light guide panel; and a controller configured to control the first light source and the second light source to emit light alternately, wherein the light guide panel includes a first pattern which responds to the first light source and does not respond to the second light source, and a second pattern which responds to the second light source and does not respond to the first light source.

First claim

What is claimed is:

1 . A three-dimensional (3D) image display apparatus comprising:
a display panel configured to display a 3D image; a light guide panel disposed on a rear surface of the display panel and configured to emit light toward the display panel; a first light source configured to irradiate light toward the light guide panel; a second light source configured to irradiate light toward the light guide panel; and a controller configured to control the first light source and the second light source to emit light alternately, wherein the light guide panel comprises a first pattern configured to reflect the light from the first light source in a direction within a predetermined threshold range with respect to a direction perpendicular to the light guide panel, and reflect the light from the second light source in a direction that is outside of the predetermined threshold range, and a second pattern configured to reflect the light from the second light source in a direction within a predetermined threshold range with respect to a direction perpendicular to the light guide panel, and reflect the light from the first light source in a direction that is outside of the predetermined threshold range.

2 . The 3D image display apparatus of claim 1 , wherein the first light source and the second light source are disposed adjacent to a first side of the light guide panel.

3 . The 3D image display apparatus of claim 1 , wherein the first light source is disposed adjacent to a first side of the light guide panel and the second light source is disposed adjacent to a second side of the light guide panel.

4 . The 3D image display apparatus of claim 3 , wherein the light guide panel is disposed between the first light source and the second light source.

5 . The 3D image display apparatus of claim 1 , wherein the first pattern and the second pattern have cross sections that are asymmetrical triangles.

6 . The 3D image display apparatus of claim 5 , wherein the first pattern and the second pattern have cross sections that are symmetrical to each other.

7 . The 3D image display apparatus of claim 1 , wherein the first pattern and the second pattern have cross sections in a shape of ovals.

8 . The 3D image display apparatus of claim 1 , wherein the first pattern comprises a first surface and a second surface, and
wherein the first surface is configured to reflect the light irradiated from the first light source in a direction within the predetermined threshold range, and emit the light to outside of the light guide panel, and the second surface is configured to reflect the light irradiated from the second light source in a direction that is outside of the predetermined threshold range.

9 . The 3D image display apparatus of claim 1 , wherein the second pattern comprises a first surface and a second surface, and
wherein the first surface is configured to reflect the light irradiated from the second light source in a direction within the predetermined threshold range, and emit the light to an outside of the light guide panel, and the second surface is configured to reflect the light irradiated from the first light source in a direction that is outside of the predetermined threshold range.

10 . The 3D image display apparatus of claim 1 , wherein a view point image displayed on the display panel based on the light emitted from the first light source and a view point image displayed on the display panel based on the light emitted from the second light source correspond to images of a same view point.

11 . The 3D image display apparatus of claim 1 , wherein the first pattern and the second pattern are alternately formed in the light guide panel.

12 . The 3D image display apparatus of claim 11 , wherein a protrusion and a depression are alternately formed in the light guide panel, and the first pattern and the second pattern are formed in the protrusion.

13 . The 3D image display apparatus of claim 1 , further comprising a collimator lens disposed between the first light source and the light guide panel.

14 . The 3D image display apparatus of claim 1 , wherein the first pattern comprises a plurality of sub patterns, and a density of the sub patterns are changed according to a distance from the first light source.

15 . The 3D image display apparatus of claim 1 , wherein the light guide panel is disposed in parallel with the display panel.

16 . The 3D image display apparatus of claim 2 , wherein the first light source is configured to emit light having a first wavelength and the second light source is configured to emit light having a second wavelength, and
wherein the first pattern is configured to respond to the light having the first wavelength and is configured to not respond to the light having the second wavelength, and the second pattern is configured to respond to the light having the second wavelength and is configured to not respond to the light having the first wavelength.

17 . The 3D image display apparatus of claim 1 , further comprising:
a third light source disposed adjacent to a third side of the light guide panel; and a fourth light source disposed adjacent to a fourth side of the light guide panel facing the third light source, wherein the light guide panel further comprises a third pattern and a fourth pattern formed therein, wherein the third pattern is configured to reflect the light from the third light source in a direction within the predetermined threshold range, and the fourth pattern is configured to reflect the light from the fourth light source in a direction within the predetermined threshold range.

18 . The 3D image display apparatus of claim 17 , wherein the controller is configured to control the first light source, the second light source, the third light source, and the fourth light source to emit light alternately.

19 . The 3D image display apparatus of claim 1 , further comprising:
a second backlight disposed on a rear surface of the light guide panel configured to display a two-dimensional (2D) image on the display panel; and a film member disposed between the light guide panel and the second backlight and configured to reflect the light emitted from the first light source or the second light source and to allow the light emitted from the second backlight to pass through.

20 . The 3D image display apparatus of claim 1 , further comprising:
a second backlight disposed on a rear surface of the light guide panel configured to display a two-dimensional (2D) image on the display panel; and a film member disposed between the light guide panel and the second backlight and configured to block the light emitted from the first light source or the second light source and to allow the light emitted from the second backlight to pass through.

21 . A three-dimensional (3D) image display method of a 3D image display apparatus, which displays a multi-view image on a display panel by emitting first line light and second line light from a light guide panel, which is disposed on a rear surface of the display panel and in which a first pattern and a second pattern are formed, the method comprising:
driving the first light source to irradiate light toward the light guide panel and generating the first line light from the first pattern reflecting the light from the first light source in a direction within a predetermined threshold range with respect to a direction perpendicular to the light guide panel; displaying a first image corresponding to a firs

Assignees

• Samsung Electronics Co Ltd

Inventors

• Hwang Seon-Deok
• Jeong Seung-Jun
• Cha Kyung-Hoon
• Mukhtarov Farid

Classifications

• G02B6/0068

  Arrangements of plural sources, e.g. multi-colour light sources · CPC title

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/133553

  Reflecting elements (associated to illuminating devices G02F1/133605) · CPC title

• G02F1/133615

  Edge-illuminating devices, i.e. illuminating from the side · CPC title

• G02B6/0038

  Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide · CPC title