3-D IMAGE DISPLAY SYSTEM AND DISPLAY EQUIPMENT AND SHUTTER GLASSES THEREOF

• US 20110292308A1
• Filed: 08/23/2010
• Published: 12/01/2011
• Est. Priority Date: 05/31/2010
• Status: Active Grant

• Current Assignee: Chunghwa Picture Tubes Limited (Tatung Co., Ltd.)
• Original Assignee: Chunghwa Picture Tubes Limited (Tatung Co., Ltd.)
• Inventors: Lin, Shih-Chieh, Chiu, Chun-Chieh, LIN, Hsiang-Tan
• Granted Patent: US 8,284,333 B2
• Time in Patent Office: Days
• US Class Current: 349/13
• CPC Class Codes: H04N 13/341 using temporal multiplexing
• CPC Class Codes: H04N 2213/008 Aspects relating to glasses for viewing stereoscopic images

Abstract

A 3D image display system includes a display equipment and a shutter glasses. The display equipment includes an LCD module. The LCD module has a linear polarizing unit and is able to generate an image light from the linear polarizing unit. The shutter glasses include two liquid crystal optical units, at least one linear polarizing unit, and at least one polarizing optical element. The linear polarizing unit is disposed between the polarizing optical element and the liquid crystal optical units. The image light passes through the polarizing optical element, the linear polarizing unit, and one of the liquid crystal optical units in sequence. When the image light passes through one of the liquid crystal optical units, the other liquid crystal optical unit blocks the image light.

Claims

1. A shutter glasses, applied to a 3D image display system, the shutter glasses comprising:

two liquid crystal optical units;

at least one polarizing optical element; and

at least one linear polarizing unit, disposed between the polarizing optical element and the liquid crystal optical units, wherein an image light passes through the polarizing optical element, the linear polarizing unit, and one of the liquid crystal optical units in sequence, and when the image light passes through one of the liquid crystal optical units, the other liquid crystal optical unit blocks the image light.

2. The shutter glasses according to claim 1, wherein the polarizing optical element is a diffuser or a quarter-wave plate.

3. The shutter glasses according to claim 1, wherein the polarizing optical element is a circular polarizer.

4. The shutter glasses according to claim 3, wherein the circular polarizer comprises a quarter-wave plate and a linear polarizer, the linear polarizer is located between the linear polarizing unit and the quarter-wave plate, and the linear polarizer and the linear polarizing unit have a same polarization direction.

5. The shutter glasses according to claim 1, wherein the polarizing optical element is attached on the linear polarizing unit.

6. The shutter glasses according to claim 1, wherein a number of the polarizing optical element is two, and the polarizing optical elements are respectively corresponding to the liquid crystal optical units.

7. A display equipment, applied to a 3D image display system, the display equipment comprising:

an LCD module, having a linear polarizing unit and capable of generating an image light from the linear polarizing unit; and

a polarizing optical element, disposed on a transmission path of the image light and used for converting a polarization state of the image light from a linear polarization into a non-linear polarization.

8. The display equipment according to claim 7, wherein the polarizing optical element is a diffuser or a quarter-wave plate.

9. The display equipment according to claim 7, wherein the polarizing optical element is a circular polarizer.

10. The display equipment according to claim 9, wherein the circular polarizer comprises a quarter-wave plate and a linear polarizer, the linear polarizer is located between the linear polarizing unit and the quarter-wave plate, and the linear polarizer and the linear polarizing unit have a same polarization direction.

11. The display equipment according to claim 7, wherein the polarizing optical element is attached on the linear polarizing unit.

12. A 3D image display system, comprising:

a display equipment, comprising an LCD module, wherein the LCD module has a linear polarizing unit and is capable of generating an image light from the linear polarizing unit; and

a shutter glasses, comprising two liquid crystal optical units, at least one linear polarizing unit, and at least one polarizing optical element, wherein the linear polarizing unit is disposed between the polarizing optical element and the liquid crystal optical units, the image light passes through the polarizing optical element, the linear polarizing unit, and one of the liquid crystal optical units in sequence, and when the image light passes through one of the liquid crystal optical units, the other liquid crystal optical unit blocks the image light.

13. The 3D image display system according to claim 12, wherein the polarizing optical element is a diffuser or a quarter-wave plate.

14. The 3D image display system according to claim 12, wherein the polarizing optical element is a circular polarizer.

15. The 3D image display system according to claim 14, wherein the circular polarizer comprises a quarter-wave plate and a linear polarizer, the linear polarizer is located between the linear polarizing unit and the quarter-wave plate, and the linear polarizer and the linear polarizing unit have a same polarization direction.

16. The 3D image display system according to claim 12, wherein the polarizing optical element is attached on the linear polarizing unit.

17. The 3D image display system according to claim 12, wherein a number of the polarizing optical element is two, and the polarizing optical elements are respectively corresponding to the liquid crystal optical units.

18. The 3D image display system according to claim 12, wherein the display equipment further comprises another polarizing optical element disposed on a transmission path of the image light and used for converting a polarization state of the image light from a linear polarization into a non-linear polarization.

19. The 3D image display system according to claim 18, wherein the polarizing optical element of the display equipment is attached on the linear polarizing unit.

20. A 3D image display system, comprising:

a display equipment, comprising an LCD module and a polarizing optical element, wherein the LCD module has a linear polarizing unit and is capable of generating an image light from the linear polarizing unit, the polarizing optical element is disposed on a transmission path of the image light and used for converting a polarization state of the image light from a linear polarization into a non-linear polarization; and

a shutter glasses, comprising two liquid crystal optical units and at least one linear polarizing unit, wherein the liquid crystal optical units and the linear polarizing unit are located on the transmission path of the image light, the image light passes through the polarizing optical element, the linear polarizing unit, and one of the liquid crystal optical units in sequence, and when the image light passes through one of the liquid crystal optical units, the other liquid crystal optical unit blocks the image light.

21. The 3D image display system according to claim 20, wherein the polarizing optical element is a diffuser or a quarter-wave plate.

22. The 3D image display system according to claim 20, wherein the polarizing optical element is a circular polarizer.

23. The 3D image display system according to claim 22, wherein the circular polarizer comprises a quarter-wave plate and a linear polarizer, the linear polarizer is located between the linear polarizing unit and the quarter-wave plate, and the linear polarizer and the linear polarizing unit have a same polarization direction.

24. The 3D image display system according to claim 20, wherein the polarizing optical element is attached on the linear polarizing unit.