LIQUID CRYSTAL SHUTTER GLASSES

• US 20110149182A1
• Filed: 12/21/2010
• Published: 06/23/2011
• Est. Priority Date: 12/21/2009
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Toshiba Mobile Display Company Limited (Japan Display Incorporated)
• Inventors: Kojima, Tetsuya, Fukami, Tetsuo, Nakao, Kenji, Araki, Shigesumi, Higano, Toshiyuki
• Granted Patent: US 8,711,293 B2
• Time in Patent Office: Days
• US Class Current: 349/13
• CPC Class Codes: G02B 30/24 involving temporal multiplexing, e.g. using sequentially activated left and right shutters
• CPC Class Codes: G02F 1/1395 Optically compensated birefringence [OCB]- cells or PI- cells
• CPC Class Codes: H04N 13/341 using temporal multiplexing
• CPC Class Codes: H04N 13/359 Switching between monoscopic and stereoscopic modes
• CPC Class Codes: H04N 13/398 Synchronisation thereof; Control thereof
• CPC Class Codes: H04N 2213/008 Aspects relating to glasses for viewing stereoscopic images

Abstract

In one embodiment, a pair of liquid crystal shutter glasses include a first liquid crystal shutter and a second liquid crystal shutter. The first and second liquid crystal shutters are switched to a transmissive state by turns. The respective first and second liquid crystal shutters include a first electrode substrate and a second electrode substrate opposing the first electrode substrate. An OCB (Optically Compensated Bend) mode liquid crystal layer is held between the first and second electrode substrates. The first electrode substrate includes a first electrode and a second electrode arranged adjacent to the first electrode. The first and second electrodes respectively include a side opposing each other and a plurality of projecting portions provided to the respective opposing sides of the first and second electrodes alternately.

Claims

1. A pair of liquid crystal shutter glasses, comprising:

a first liquid crystal shutter for right eye; and

a second liquid crystal shutter for left eye, the first and second liquid crystal shutters being switched to a transmissive state by turns;

the respective first and second liquid crystal shutters including;

a first electrode substrate and a second electrode substrate opposing the first electrode substrate, and

an OCB (Optically Compensated Bend) mode liquid crystal layer held between the first and second electrode substrates,

wherein the first electrode substrate includes a first electrode and a second electrode adjacent to the first electrode, and the first and second electrodes respectively include a side opposing each other and a plurality of projecting portions provided to the respective opposing sides of the first and second electrodes alternately.

2. The liquid crystal shutter glasses according to claim 1,

wherein the projecting portions include a first projecting portions provided to the side of the first electrode and a second projecting portions provided to the side of the second electrode,

one first projecting portion is located between adjoining second adjoining portions, and

one second projecting portion is located between adjoining first projecting portions.

3. The liquid crystal shutter glasses according to claim 1, wherein a shielding layer is arranged corresponding to a gap between the first and second electrodes arranged adjacently each other.

4. The liquid crystal shutter glasses according to claim 3, wherein the shielding layer is formed of metal material, and an insulating layer covers the shielding layer.

5. The liquid crystal shutter glasses according to claim 4, wherein the first electrode substrate includes an input electrode electrically connected to the shielding layer.

6. The liquid crystal shutter glasses according to claim 1, wherein the respective projecting portions are formed in a polygonal shape.

7. The liquid crystal shutter glasses according to claim 1, wherein the respective projecting portions are formed in a rectangular shape.

8. A pair of liquid crystal shutter glasses, comprising:

a first liquid crystal shutter for right eye; and

a second liquid crystal shutter for left eye, the first and second liquid crystal shutters being switched to a transmissive state by turns;

the respective first and second liquid crystal shutters including;

a first electrode substrate and a second electrode substrate opposing to the first electrode substrate, and

an OCB (Optically Compensated Bend) mode liquid crystal layer held between the first and second electrode substrates,

a plurality of first electrodes and second electrodes arranged alternately on the first electrode substrate, the first and second electrodes including respectively sides opposing each other,

a plurality of projecting portions provided to respective sides of the first and second electrodes alternately,

wherein first and second voltages are respectively applied to the first and second electrodes, and the plurality of first and second electrodes arranged alternately are respectively connected to first and second terminals provided at a peripheral portion of the first electrode substrate for supplying the first and second voltages to the first and second electrodes.

9. The liquid crystal shutter glasses according to claim 8,

wherein the projecting portions include a first projecting portions provided to the side of the first electrode and a second projecting portions provided to the side of the second electrode,

one first projecting portion is located between adjoining second adjoining portions, and

one second projecting portion is located between adjoining first projecting portions.

10. The liquid crystal shutter glasses according to claim 8, wherein a shielding layer is arranged corresponding to a gap between the first and second electrodes.

11. The liquid crystal shutter glasses according to claim 10, wherein the shielding layer is formed of metal material, and an insulating layer covers the shielding layer.

12. The liquid crystal shutter glasses according to claim 11, wherein the first electrode substrate includes an input electrode electrically connected to the shielding layer.

13. A pair of liquid crystal shutter glasses, comprising:

a first liquid crystal shutter for right eye;

a second liquid crystal shutter for left eye, the first and second liquid crystal shutters being switched to a transmissive state by turns;

the respective first and second liquid crystal shutters including;

a first electrode substrate and a second electrode substrate opposing the first electrode substrate, and

an OCB (Optically Compensated Bend) mode liquid crystal layer held between the first and second electrode substrates,

a first electrode and a second electrode arranged adjacent to the first electrode on the first electrode substrate;

a plurality of first projecting portions provided to opposing sides of the first and second electrodes alternately;

a third electrode and a fourth electrode arranged adjacent to the third electrode on the second electrode substrate;

a plurality of second projecting portions provided to respective opposing sides of the third and fourth electrodes alternately,

wherein the first and second electrodes of the first electrode substrate are arranged corresponding to the third and fourth electrodes of the second electrode substrate respectively, and

a first voltage is applied to the first electrode and the fourth electrode, and a second voltage is applied to the second electrode and the third electrode.

14. The liquid crystal shutter glasses according to claim 13,

wherein the first projecting portions include third projecting portions provided to the side of the first electrode and fourth projecting portions provided to the side of the second electrode,

one third projecting portion is located between adjoining fourth projecting portions,

one fourth projecting portion is located between adjoining third projecting portions, and

wherein the second projecting portions include fifth projecting portions provided to the side of the third electrode and sixth projecting portions provided to the side of the fourth electrode,

one fifth projecting portion is located between adjoining sixth projecting portions,

one sixth projecting portion is located between adjoining fifth projecting portions.

15. The liquid crystal shutter glasses according to claim 13, wherein the first and second electrodes of the first electrode substrate are respectively connected to first and second terminals arranged at a peripheral portion of the first electrode substrate for supplying the first and second voltages.

16. The liquid crystal shutter glasses according to claim 15, wherein the third and fourth electrodes are respectively connected to third and fourth terminals arranged at a peripheral portion of the second electrode substrate for supplying the first and second voltages.

17. The liquid crystal shutter glasses according to claim 16, wherein the first terminal is electrically connected to the third terminal by a first transfer, and the second terminal is electrically connected to the fourth terminal by a second transfer.

18. The liquid crystal shutter glasses according to claim 17, wherein a first electrical field is formed between the first electrode and the second electrode, and between the third electrode and the fourth electrode in parallel with the surface of the first and second electrodes in various directions.

19. The liquid crystal shutter glasses according to claim 17, wherein a second electrical field is formed between the first electrode and the third electrode, and between the second electrode and the fourth electrode in vertical with the surface of the first and second electrodes.

20. The liquid crystal shutter glasses according to claim 13, wherein a shielding layer is arranged corresponding to a gap between the first and second electrodes, and between the third and fourth electrodes.

21. The liquid crystal shutter glasses according to claim 20, wherein the shielding layer is formed of metal material, and an insulating layer covers the shielding layer.

22. The liquid crystal shutter glasses according to claim 21, wherein the first and second electrode substrates respectively include an input electrode electrically connected to the shielding layer.