Two-dimensional and three-dimensional image selectable display device

• US 20070126967A1
• Filed: 10/10/2006
• Published: 06/07/2007
• Est. Priority Date: 12/02/2005
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Jang, Brent, Nam, Hui, Choi, Kyung
• Granted Patent: US 8,174,464 B2
• Time in Patent Office: Days
• US Class Current: 349/141
• CPC Class Codes: G02B 30/25 using polarisation techniques
• CPC Class Codes: G02F 1/134363 for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]

Abstract

A display device, adapted to display a two-dimensional image or a three-dimensional image, includes an image panel for displaying an image and a barrier panel located in front of the image panel. The barrier panel includes a first substrate including In-Plane-Switching type electrodes arranged on a surface of the substrate, a second substrate having a transparent electrode on the inner side surface, and a liquid crystal layer located between the first and second substrates. The barrier panel displays the image as a two-dimensional image or a three-dimensional image depending on electric fields established between first and second substrates of the barrier panel and between the In-Plane-Switching type electrodes formed on the first substrate. The two-dimensional image may be displayed with wide viewing angle and narrow viewing angle options.

Claims

1. A display device comprising:

an image panel for displaying an image; and

a barrier panel located in front of the image panel, the barrier panel being adapted to present the image as a two-dimensional image or a three-dimensional image,

wherein the barrier panel comprises;

a first substrate having in-plane-switching (IPS) type electrodes located thereon;

a second substrate including a transparent electrode located on an inner side surface thereof, the inner side surface of the second substrate facing the first substrate; and

a liquid crystal layer interposed between the first substrate and the second substrate.

2. The display device as claimed in claim 1, wherein first and second orientation films are provided on inner sides of the first and second substrates, respectively, the inner side of the first substrate facing the second substrate and the inner side of the second substrate facing the first substrate.

3. The display device as claimed in claim 2, wherein the first and second orientation films are anti-parallel rubbed for arranging liquid crystal in the liquid crystal layer in an electrically controlled birefringence (ECB) mode.

4. The display device as claimed in claim 1, wherein the IPS type electrodes form a first electrode unit and a second electrode unit each having a plurality of extrusions, the extrusions of each electrode unit arranged alternately with the extrusions of the other electrode unit.

5. The display device as claimed in claim 1, wherein the image panel is a liquid crystal display, a plasma display panel, or an organic light-emitting device.

6. The display device as claimed in claim 1, wherein the image panel selectively displays a two-dimensional image or a three-dimensional image.

7. The display device as claimed in claim 6, wherein when the image panel displays a three-dimensional image, a left eye pixel of an image for a left eye, and a right eye pixel of an image for a right eye are alternately arranged.

8. The display device as claimed in claim 1, wherein the barrier panel implements a three-dimensional display mode when a voltage is applied to the in-plane-switching type electrodes arranged on the first substrate and an electric field substantially parallel to the first susbtrate is generated in a predetermined region.

9. The display device as claimed in claim 8, wherein the barrier panel implements a two-dimensional display mode when no voltage is applied to the in-plane-switching type electrodes arranged on the first substrate.

10. The display device as claimed in claim 1, wherein the barrier panel displaying the two-dimensional image implements a narrow viewing angle mode if an electric field is generated between the first substrate and the second substrate.

11. The display device as claimed in claim 1, wherein if an electric field is generated between the first substrate and the second substrate, then the two-dimensional image is displayed.

12. The display device as claimed in claim 1, wherein the barrier panel displaying the two-dimensional image implements a wide viewing angle mode if no electric field is generated between the first substrate and the second substrate and no electric field is generated between the in-plane-switching type electrodes arranged on the first substrate.

13. A barrier panel adapted to present a two-dimensional image or a three-dimensional image from an image panel, the barrier panel comprising:

a first substrate having in-plane-switching (IPS) type electrodes located thereon;

a second substrate including a transparent electrode located on an inner side surface thereof, the inner side surface of the second substrate facing the first substrate; and

a liquid crystal layer interposed between the first substrate and the second substrate.

14. The barrier panel of claim 13, further comprising:

a first orientation film located on the IPS electrodes; and

a second orientation film located on the transparent electrode,

wherein the first orientation film and the second orientation film are anti-parallel rubbed for arranging the liquid crystals in an electrically controlled birefringence (ECB) mode.

15. The barrier panel of claim 13, wherein the three-dimensional image is presented if no electric field is generated between the first substrate and the second substrate, and an electric field is generated between the IPS electrodes.

16. The barrier panel of claim 15,

wherein the IPS type electrodes form a comb-shaped first electrode unit and a comb-shaped second electrode unit having interlaced extrusions, and

wherein the electric field generated between the IPS electrodes is an electric field substantially parallel to the first susbtrate generated between the extrusions of the first electrode unit and the extrusions of the second electrode unit.

17. The barrier panel of claim 13,

wherein the two-dimensional image is presented if no electric field is generated between the IPS type electrodes,

wherein the two-dimensional image is presented with a narrow viewing angle if an electric field is generated between the first substrate and the second substrate, and

wherein the two-dimensional image is presented with a wide viewing angle if no electric field is generated between the first substrate and the second substrate.