Backlight apparatus and three-dimensional (3d) display apparatus including the same

Patent metadata

Field	Value
Publication number	US-2016291339-A1
Application number	US-201615086434-A
Country	US
Kind code	A1
Filing date	Mar 31, 2016
Priority date	Apr 1, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

Disclosed herein are a backlight apparatus of providing light of different colors sequentially to provide a 3 Dimensional (3D) image of a high resolution, and a display apparatus including the backlight apparatus. The backlight apparatus according to an embodiment includes: a light source configured to sequentially generate light of different colors; and a light guide plate configured to receive the light of different colors and emits the light toward a plurality of viewpoints.

First claim

What is claimed is:

1 . A backlight apparatus comprising:
a light source configured to sequentially generate first light of a first color and second light of a second color; and a light guide plate configured to receive the first light and the second light, the light guide plate comprising a plurality of exit areas configured to emit the first light and the second light toward a plurality of viewpoints.

2 . The backlight apparatus according to claim 1 , wherein the light guide plate further comprises:
a first surface onto which the first light and the second light generated by the light source are incident; a second surface through which the first light and the second light exits; and a third surface, opposite the second surface, wherein the plurality of exit patterns are arranged at regular intervals on the third surface and the plurality of exit patterns reflect light incident through the first surface toward the plurality of viewpoints through the second surface.

3 . The backlight apparatus according to claim 1 , wherein the first light and the second light display a plurality of sub viewpoint images constructing a plurality of different viewpoint images at the plurality of viewpoints.

4 . The backlight apparatus according to claim 3 , wherein the light source sequentially generates the first light and the second light for each frame period of the plurality of different viewpoint images.

5 . The backlight apparatus according to claim 1 , wherein the light source sequentially generates red light, green light, and blue light in a predetermined order.

6 . The backlight apparatus according to claim 1 , wherein the light source sequentially generates cyan light, magenta light, and yellow light in a predetermined order.

7 . The backlight apparatus according to claim 2 , further comprising a second light source configured to sequentially generate second light of the first color and first light of the second color toward the second surface.

8 . The backlight apparatus according to claim 7 , wherein the second light source is positioned behind the third surface, and the second light of the first color and the first light of the second color generated by the second light source are incident to the light guard plate through the third surface and then exits through the second surface.

9 . The backlight apparatus according to claim 1 , wherein the plurality of exit areas extend perpendicularly to an incidence direction of the light generated by the light source on a surface of the light guide plate.

10 . The backlight apparatus according to claim 1 , wherein the plurality of exit areas extend in a predetermined direction on a surface of the light guide plate.

11 . A display apparatus comprising:
a backlight apparatus configured to sequentially emit first light of a first color and second light of a second color toward a plurality of viewpoints from a plurality of predetermined areas arranged at regular intervals; and a display panel configured to transmit the first light and the second light to provide a plurality of different sub viewpoint images at the plurality of viewpoints.

12 . The display apparatus according to claim 11 , wherein the backlight apparatus comprises:
a light source configured to sequentially generate the first light and the second light; and a light guide plate configured to receive the first light and the second light, the light guide plate comprising a plurality of exit areas configured to emit the first light and the second light toward a plurality of viewpoints.

13 . The display apparatus according to claim 12 , wherein the light guide plate further comprises:
a first surface onto which the first light and the second light generated by the light source are incident; a second surface through which the first light and the second light exits; and a third surface opposite to the second surface, wherein the plurality of exit patterns are arranged at regular intervals on the third surface and the plurality of exit patterns reflect light incident through the first surface toward the plurality of viewpoints through the second surface.

14 . The display apparatus according to claim 12 , wherein the first light and the second light sequentially display the plurality of sub viewpoint images constructing the plurality of different viewpoint images at the plurality of viewpoints.

15 . The display apparatus according to claim 14 , wherein the first light source sequentially generates the first light and the second light for each frame period of the plurality of different viewpoint images.

16 . The display apparatus according to claim 12 , wherein the light source sequentially generates red light, green light, and blue light in a predetermined order.

17 . The display apparatus according to claim 12 , wherein the light source sequentially generates cyan light, magenta light, and yellow light in a predetermined order.

18 . The display apparatus according to claim 13 , further comprising a second light source configured to sequentially generate second light of the first color and first light of the second color toward the second surface of the light guide plate,
wherein the second light source is positioned behind the third surface, and the second light of the first color and the first light of the second color generated by the second light source are incident to the light guard plate through the third surface and then exits through the second surface.

19 . The display apparatus according to claim 12 , wherein the plurality of exit areas extend perpendicularly to an incidence direction of the light generated by the first light source on a surface of the light guide plate.

20 . The display apparatus according to claim 12 , wherein the plurality of exit areas extend in a predetermined direction on a surface of the light guide plate.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Minami Katsumi

Classifications

• G02B6/0051

  Diffusing sheet or layer · CPC title

• H04N13/324

  Colour aspects · CPC title

• H04N13/398

  Synchronisation thereof; Control thereof · CPC title

• G02B30/27 Primary

  involving lenticular arrays · CPC title

• H04N13/32 Primary

  using arrays of controllable light sources; using moving apertures or moving light sources · CPC title