Display apparatus, 3D film and control method thereof

Patent metadata

Field	Value
Publication number	US-10146060-B2
Application number	US-201414244425-A
Country	US
Kind code	B2
Filing date	Apr 3, 2014
Priority date	Aug 9, 2013
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

A display apparatus is provided. The display apparatus includes a display panel; a backlight configured to irradiate visible ray to the display panel in a 2D mode, and configured to irradiate ultraviolet ray to the display panel in a 3D mode; and a 3D film disposed between the display panel and backlight, wherein the 3D film comprises: a pattern formed by a plurality of lines distanced from one another by a predetermined distance; and a coating layer that is formed on one side of the plurality of lines pattern and transmits or reflects light patterned by the plurality of lines pattern, per line. Accordingly, it is possible to prevent deterioration of resolution of a screen image, provide a simple structure and enable a change to and from a 2D mode and a 3D mode.

First claim

What is claimed is:

1. A display apparatus comprising:
a display panel;
a backlight configured to irradiate a visible ray to the display panel in a 2D mode, and irradiate an ultraviolet ray to the display panel in a 3D mode; and
a 3D film disposed between the display panel and backlight,
wherein the 3D film comprises:
a pattern comprising a plurality of lines, the lines being distanced from one another by a predetermined distance,
a coating layer, and
a layer located between the pattern and the coating layer,
wherein the layer located between the pattern and the coating layer includes a first surface facing a first direction and a second surface facing a second direction opposite to the first direction, and the plurality of lines are disposed on the first surface and the coating layer is disposed on the second surface,
wherein the pattern is configured to transmit a visible ray irradiated from the backlight and entering the plurality of lines,
wherein the pattern is configured to reflect an ultraviolet ray irradiated from the backlight to the plurality of lines,
wherein the coating layer is configured to transmit the visible ray irradiated from the backlight and transmitted through the plurality of lines and then entering the coating layer and transmit a visible ray irradiated from the backlight and passing a space between the plurality of lines and then entering the coating layer, and
wherein the coating layer is configured to convert an ultraviolet ray irradiated from the backlight and passing the space between the plurality of lines and then entering the coating layer into a visible ray and transmit the converted visible ray.

2. The display apparatus according to claim 1 ,
wherein the pattern is a UV reflected coating pattern, and
the coating layer is a white phosphor coating layer.

3. The display apparatus according to claim 1 ,
wherein the backlight comprises at least one first light source configured to provide the visible ray to the display panel; and
at least one second light source configured to provide the ultraviolet ray to the display panel.

4. The display apparatus according to claim 3 , further comprising a backlight driver configured to selectively turn on the at least one first light source or the at least one second light source; and
a controller configured to turn on the at least one first light source if the 2D mode is initiated, and turns on the at least one second light source if the 3D mode is initiated.

5. The display apparatus according to claim 1 ,
wherein the layer located between the pattern and the coating layer is a transparent layer.

6. A 3D film comprising:
a pattern comprising a plurality of lines, the lines of the pattern being distanced from one another by a predetermined distance; and
a coating layer; and
a layer located between the pattern and the coating layer,
wherein the layer located between the pattern and the coating layer includes a first surface facing a first direction and a second surface facing a second direction opposite to the first direction, and the plurality of lines are disposed on the first surface and the coating layer is disposed on the second surface,
wherein the pattern is configured to transmit a visible ray provided from a light source and entering the plurality of lines,
wherein the pattern is configured to reflect an ultraviolet ray provided from the light source to the plurality of lines,
wherein the coating layer is configured to transmit the visible ray provided from the light source and transmitted through the plurality of lines and then entering the coating layer and transmit a visible ray irradiated from the light source and passing a space between the plurality of lines, and
wherein the coating layer is configured to convert an ultraviolet ray irradiated from the light source and passing the space between the plurality of lines and then entering the coating layer into a visible ray and transmit the converted visible ray.

7. The 3D film according to claim 6 ,
wherein the pattern is a UV reflected coating pattern, and
the coating layer is a white phosphor coating layer.

8. The 3D film according to claim 6 , wherein the layer located between the pattern and the coating layer is a transparent layer.

9. A display apparatus comprising:
a 3D film disposed between a display panel and a backlight,
wherein the 3D film comprises:
a pattern comprising a plurality of lines, the lines being distanced from one another by a predetermined distance; and
a coating layer,
a layer located between the pattern and the coating layer,
wherein the layer located between the pattern and the coating layer includes a first surface facing a first direction and a second surface facing a second direction opposite to the first direction, and the plurality of lines are disposed on the first surface and the coating layer is disposed on the second surface,
wherein the pattern is configured to transmit a visible ray irradiated from the backlight and entering the plurality of lines,
wherein the pattern is configured to reflect an ultraviolet ray irradiated from the backlight to the plurality of lines,
wherein the coating layer is configured to transmit the visible ray irradiated from the backlight and transmitted through the plurality of lines and then entering the coating layer and transmit a visible ray irradiated from the backlight and passing a space between the plurality of lines and then entering the coating layer, and
wherein the coating layer is configured to convert an ultraviolet ray irradiated from the backlight and passing the space between the plurality of lines and then entering the coating layer into a visible ray and transmit the converted visible ray.

10. The display apparatus of claim 9 , further comprising a display panel; and
a backlight configured to irradiate a visible ray to the display panel in a 2D mode, and irradiate an ultraviolet ray to the display panel in a 3D mode.

11. The display panel of claim 10 , wherein the pattern is a UV reflected coating pattern and
the coating layer is a white phosphor coating layer.

12. The display apparatus according to claim 9 , wherein the layer located between the pattern and the coating layer is a transparent layer.

13. The display apparatus according to claim 10 , wherein the backlight comprises at least one first light source configured to provide the visible ray; and at least one second light source configured to provide the ultraviolet ray.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Hwang Seon-Deok
• Mukhtarov Farid

Classifications

• G02B5/208

  for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation · CPC title

• G02B30/00 Primary

  Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images (in microscopes G02B21/22) · CPC title

• H04N13/312 Primary

  the parallax barriers being placed behind the display panel, e.g. between backlight and spatial light modulator [SLM] · CPC title

• G02B30/40 Primary

  giving the observer of a single two-dimensional [2D] image a perception of depth · CPC title

• H04N13/356

  having separate monoscopic and stereoscopic modes · CPC title