DISPLAY APPARATUS WITH ELECTROCHROMIC MIRROR

• US 20160127719A1
• Filed: 09/16/2015
• Published: 05/05/2016
• Est. Priority Date: 10/30/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: JEON, Keun-bae, LEE, Won Yong
• Granted Patent: US 10,321,120 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02B 30/31 involving active parallax barriers involving directional light or back-light sources G02B30/33
• CPC Class Codes: G02F 2201/44 Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
• CPC Class Codes: H04N 13/31 using parallax barriers

Abstract

A three-dimensional (3D) display apparatus including: a display panel; a backlight configured to supply light to the display panel; and a parallax barrier disposed between the display panel and the backlight, wherein the parallax barrier includes an electrochromic mirror (ECM).

Claims

1. A three-dimensional (3D) display apparatus comprising:

a display panel;

a backlight configured to supply light to the display panel; and

a parallax barrier disposed between the display panel and the backlight,

wherein the parallax barrier comprises an electrochromic mirror (ECM).

2. The 3D display apparatus of claim 1, wherein

the ECM comprises blocking portions configured to block light and transmitting portions configured to transmit light, and

the blocking portions and the transmitting portions are alternately formed in the ECM.

3. The 3D display apparatus of claim 2, wherein positions of the blocking portions and positions of the transmitting portions are adjustable based on a position of a viewer.

4. The 3D display apparatus of claim 1, wherein the backlight comprises:

a light guide panel configured to guide the supplied light toward the display panel;

a pair of 3D light sources disposed on opposite ends of the light guide panel; and

a two-dimensional light source disposed behind the light guide panel.

5. The 3D display apparatus of claim 4, wherein the pair of 3D light sources and the two-dimensional light source comprise respective substrates and respective pluralities of light emitting diodes disposed on the respective substrates.

6. The 3D display apparatus of claim 1, wherein the display panel comprises a liquid crystal panel.

7. A display apparatus comprising:

a display panel;

a backlight configured to supply light to the display panel; and

an electrochromic mirror (ECM) disposed between the display panel and the backlight.

8. The display apparatus of claim 7, wherein

the ECM comprises blocking portions configured to block the light supplied by the backlight and transmitting portions configured to transmit the light supplied by the backlight, and

the blocking portions and the transmitting portions are alternately formed in the ECM.

9. The display apparatus of claim 8, wherein the backlight comprises:

a light guide panel configured to guide the supplied light toward the display panel;

a pair of 3D light sources disposed on opposite side ends of the light guide panel; and

a two-dimensional light source disposed behind the light guide panel.

10. The display apparatus of claim 7, wherein a reflectivity of the ECM is adjustable based on electricity applied to the ECM.

11. The display apparatus of claim 10, wherein the reflectivity of the ECM is adjustable based on electricity applied to the ECM to provide one or more blocking portions and one or more transmitting portions.

12. The display apparatus of claim 11, wherein the display apparatus is configured to control a size and position of the one or more blocking portions and the one or more transmitting portions.

13. The display apparatus of claim 12, wherein the display apparatus is further configured to, in response to a portion of the display panel displaying a dark portion of a screen, control an area of the ECM corresponding to the portion of the display panel to be a blocking portion.

14. The display apparatus of claim 12, wherein the display apparatus is further configured to control the ECM to form a parallax barrier with the one or more blocking portions and the one or more transmitting portions.

15. The display apparatus of claim 14, wherein the display apparatus is further configured to control the ECM to form the parallax barrier by forming the one or more blocking portions and the one or more transmitting portions in alternating strips.

16. The display apparatus of claim 14, wherein the display apparatus is further configured to control the ECM to adjust the parallax barrier based on a position of a viewer of the display apparatus relative to a front of the display panel.

17. The display apparatus of claim 14, wherein the display apparatus is further configured to control the ECM to adjust the parallax barrier based on a distance of a viewer of the display apparatus from the display panel.