Connecting a projection-type display system to an opening and closing device

• US 9,016,864 B2
• Filed: 11/14/2011
• Issued: 04/28/2015
• Est. Priority Date: 11/19/2010
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sasazaki, Yukihiro, Mizoe, Masaaki
• Primary Examiner(s): Chowdhury, Sultan
• Assistant Examiner(s): LE, BAO-LUAN Q
• Application Number:
  US13/295,607
• Publication Number:
  US 20120127434A1
• Time in Patent Office: 1,261 Days
• Field of Search: 353/6, 353/7, 353/8, 353/9, 348/40, 348/41, 348/42, 348/43, 348/44, 348/45, 348/46, 348/47, 348/48, 348/49, 348/50, 348/51, 348/52, 348/53, 348/54, 348/55, 348/56, 348/57, 348/58, 348/59, 348/60
• US Class Current: 353/7
• CPC Class Codes: G02B 30/24 involving temporal multiplexing, e.g. using sequentially activated left and right shutters
• CPC Class Codes: G03B 21/26 Projecting separately subsidiary matter simultaneously with main image
• CPC Class Codes: G03B 35/24 using apertured or refractive resolving means on screens or between screen and eye
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• CPC Class Codes: H04N 13/341 using temporal multiplexing
• CPC Class Codes: H04N 13/363 using image projection screens volumetric display H04N13/388
• CPC Class Codes: H04N 13/398 Synchronisation thereof; Control thereof

Abstract

A projection-type display system includes: a projection-type display apparatus that alternately switches images for the left eye and images for the right eye and projects the images onto an object; and an opening and closing control device that receives a control signal based on the display states of the images projected onto the object by the projection-type display apparatus and controls switching apertures of stereoscopic image viewing glasses corresponding to left and right eyes, wherein the projection-type display apparatus is connected to one end of a LAN cable and the opening and closing control device is connected to the other end of the LAN cable.

Claims

1. A projection-type display system comprising:

a projection-type display apparatus configured to alternately switch between images for the left eye and images for the right eye and project the images onto an object, the projection-type display apparatus being disposed within a first housing comprising a first cable terminal; and

an opening and closing control device configured to receive a control signal based on the display states of the images projected onto the object by the projection-type display apparatus and control switching apertures of stereoscopic image viewing glasses corresponding to left and right eyes, the opening and closing control device being disposed within a second housing separate from the first housing and comprising a second cable terminal,

wherein;

the stereoscopic image viewing glasses are adapted to be connected wirelessly to the opening and closing control device; and

the first and the second terminals are adapted to allow an operational, hardwired connection to be formed therebetween via at least one cable;

wherein the projection-type display apparatus is configured to transmit the control signal to the opening and closing control device through the at least one cable;

wherein;

the projection-type display apparatus includes a built-in opening and closing control device that is built into the projection-type display apparatus; and

further comprising,

a control unit configured to judge whether the opening and closing control device is connected to the projection-type display apparatus through the at least one cable, wherein;

the control unit is configured to control the projection-type display apparatus so that, if the opening and closing device is connected to the projection-type display apparatus through the at least one cable, the projection-type display apparatus transmits the control signal to the opening and closing control device and refrains from transmitting the control signal to the built-in opening and closing control device; and

,

the control unit is further configured to control the projection-type display apparatus so that if the opening and closing device is not connected to the projection-type display apparatus through the at least one cable, the projection-type display apparatus transmits the control signal to the built-in opening and closing control device that is built into the projection-type display apparatus.

2. The projection-type display system according to claim 1, wherein the projection-type display apparatus is configured to project images from behind a user to in front of the user.

3. The projection-type display system according to claim 1, wherein the control unit is configured to supply a control signal to the opening and closing control device or to the built-in opening and closing control device and at the same time supplies a strength setting signal that is configured to be used for adjusting the output strength of an infrared ray that the opening and closing control device or the built-in opening and closing control device is configured to output to the stereoscopic image viewing glasses.

4. The projection-type display system according to claim 1, wherein one of the projection-type display apparatus and the opening and closing control device is configured to conform to a standard, the other is configured to conform to a proprietary standard, and the projection-type display apparatus and the opening and closing control device are adapted to be connected to each other through a cable, a dedicated cable, and a junction cable that is configured to join the cable and the dedicated cable.

5. The projection-type display system according to claim 1, wherein the at least one cable is a LAN cable.

6. The projection-type display system according to claim 1, wherein the projection-type display apparatus is configured to project images from behind a user to in front of the user.

7. The projection-type display system according to claim 1, wherein the control unit is configured to supply a control signal to the opening and closing control device or to the built-in opening and closing control device and at the same time is configured to supply a strength setting signal that is configured to be used for adjusting the output strength of an infrared ray that the opening and closing control device or the built-in opening and closing control device is configured to output to the stereoscopic image viewing glasses.

8. The projection-type display system according to claim 1, wherein one of the projection-type display apparatus and the opening and closing control device is configured to conform to a standard, the other is configured to conform to a proprietary standard, and the projection-type display apparatus and the opening and closing control device are adapted to be connected to each other through a cable, a dedicated cable, and a junction cable that is configured to join the cable and the dedicated cable.

9. The projection-type display system according to claim 1, wherein the operational, hardwired connection comprises a junction cable, configured to join two other cables together.

10. The projection-type display system according to claim 4, wherein the cable is a LAN cable and wherein the standard is a LAN standard.

11. The projection-type display system according to claim 8, wherein the cable is a LAN cable and wherein the standard is a LAN standard.

12. A projection-type display system comprising:

a projection-type display apparatus configured to alternately switch between images for the left eye and images for the right eye and project the images onto an object; and

an opening and closing control device configured to receive a control signal based on the display states of the images projected onto the object by the projection-type display apparatus and control switching apertures of stereoscopic image viewing glasses corresponding to left and right eyes,

wherein;

the projection-type display apparatus and the opening and closing control device are adapted to be connected to each other through at least one cable; and

,

the projection-type display apparatus includes a built-in opening and closing control device that is built into the projection-type display apparatus; and

further comprising,

a control unit configured to judge whether the opening and closing control device is connected to the projection-type display apparatus through the at least one cable, wherein;

the control unit is configured to control the projection-type display apparatus so that, if the opening and closing device is connected to the projection-type display apparatus through the at least one cable, the projection-type display apparatus transmits the control signal to the opening and closing control device and refrains from transmitting the control signal to the built-in opening and closing control device; and

,

the control unit is further configured to control the projection-type display apparatus so that if the opening and closing device is not connected to the projection-type display apparatus through the at least one cable, the projection-type display apparatus transmits the control signal to the built-in opening and closing control device that is built into the projection-type display apparatus.

13. The projection-type display system according to claim 12, wherein the at least one cable is a LAN cable.

14. The projection-type display system according to claim 12, wherein the projection-type display apparatus is configured to project images from behind a user to in front of the user.

15. The projection-type display system according to claim 12, wherein the control unit is configured to supply a control signal to the opening and closing control device or to the built-in opening and closing control device and at the same time is configured to supply a strength setting signal that is configured to be used for adjusting the output strength of an infrared ray that the opening and closing control device or the built-in opening and closing control device is configured to output to the stereoscopic image viewing glasses.

16. The projection-type display system according to claim 12, wherein one of the projection-type display apparatus and the opening and closing control device is configured to conform to a standard, the other is configured to conform to a proprietary standard, and the projection-type display apparatus and the opening and closing control device are adapted to be connected to each other through a cable, a dedicated cable, and a junction cable that is configured to join the cable and the dedicated cable.

17. The projection-type display system according to claim 12, wherein the built-in opening and closing control device is capable of forming a wireless connection with the stereoscopic image viewing glasses.

18. The projection-type display system according to claim 12, wherein the opening and closing control device is external to the projection-type display device.

19. The projection-type display system according to claim 16, wherein the cable is a LAN cable and wherein the standard is a LAN standard.