# US 8,542,326 B2 · 3D shutter glasses for use with LCD displays > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,542,326 B2 - Document ID: US8542326B2 - Status: Granted - Kind: B2 - Application number: 13/040,916 - Filed: 2011-03-04 - Published: 2011-09-08 - Granted: 2013-09-24 - Earliest claimed: 2008-11-17 - Assignees: X6D Limited - Applicants: Boyd MacNaughton; Rodney W. Kimmell; David W. Allen; Jure Bezgovsek - Inventors: Boyd MacNaughton; Rodney W. Kimmell; David W. Allen; Jure Bezgovsek - Web page: https://patentgrep.com/patent/US8542326B2 ## CPC - G02F 1/1335: Structural association of cells with optical devices, e.g. polarisers or reflectors - G02B 30/24: involving temporal multiplexing, e.g. using sequentially activated left and right shutters - G02B 30/25: using polarisation techniques - G09G 3/003: {to produce spatial visual effects} - G09G 3/3406: {Control of illumination source (illumination devices structurally associated with liquid crystal cells G02F1/1336)} - H04N 13/341: using temporal multiplexing - H04N 13/398: Synchronisation thereof; Control thereof - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A viewing system for viewing video displays having the appearance of a three dimensional image. ## Claims ### Claim 1 A method of viewing 3D images using an LCD display having a backlight using 3D shutter glasses having left and right shutters, comprising: displaying left and right images on the LCD display; synchronizing the operation of the 3D glasses with the operation of the LCD display such that the left shutter is open and the right shutter is closed during the display of the left image on the LCD display and the left shutter is closed and the right shutter is open during the display of the right image on the LCD display; and turning off the backlight of the LCD display during a transition between the display of adjacent left and right images. ### Claim 2 (depends on 1) The method of claim 1, wherein displaying left and right images on the LCD display comprises displaying left and right images at a rate of 240 images per second. ### Claim 3 (depends on 2) The method of claim 2, wherein displaying left and right images on the LCD display comprises displaying two left images and then displaying two right images. ### Claim 4 (depends on 1) The method of claim 1, wherein displaying left and right images on the LCD display comprises displaying two left images and then displaying two right images. ### Claim 5 (depends on 4) The method of claim 4, wherein displaying left and right images on the LCD display comprises displaying left and right images at a rate of 240 images per second. ### Claim 6 (depends on 1) The method of claim 1, further comprising the polarization of the left and right shutters substantially matching the polarization of the LCD display. ### Claim 7 A system for viewing 3D images using an LCD display having a backlight using 3D shutter glasses having left and right shutters, comprising: means for displaying left and right images on the LCD display; means for synchronizing the operation of the 3D glasses with the operation of the LCD display such that the left shutter is open and the right shutter is closed during the display of the left image on the LCD display and the left shutter is closed and the right shutter is open during the display of the right image on the LCD display; and means for turning off the backlight of the LCD display during a transition between the display of adjacent left and right images. ### Claim 8 (depends on 7) The system of claim 7, wherein means for displaying left and right images on the LCD display comprises means for displaying left and right images at a rate of 240 images per second. ### Claim 9 (depends on 8) The system of claim 8, wherein means for displaying left and right images on the LCD display comprises means for displaying two left images and then displaying two right images. ### Claim 10 (depends on 7) The system of claim 7, wherein means for displaying left and right images on the LCD display comprises means for displaying two left images and then displaying two right images. ### Claim 11 (depends on 10) The system of claim 10, wherein means for displaying left and right images on the LCD display comprises means for displaying left and right images at a rate of 240 images per second. ### Claim 12 (depends on 7) The system of claim 7, further comprising a means for the polarization of the left and right shutters substantially matching the polarization of the LCD display. ### Claim 13 A method of viewing 3D images using an LCD display having a backlight using 3D shutter glasses having left and right shutters that are worn by a user, comprising: displaying left and right images on the LCD display; synchronizing the operation of the 3D glasses with the operation of the LCD display by transmitting signals from the LCD display to the 3D glassed such that the left shutter is open and the right shutter is closed during the display of the left image on the LCD display and the left shutter is closed and the right shutter is open during the display of the right image on the LCD display; and turning off the backlight of the LCD display during a transition between the display of adjacent left and right images. ### Claim 14 A system for viewing 3D images using an LCD display having a backlight using 3D shutter glasses having left and right shutters that are worn by a user, comprising: means for displaying left and right images on the LCD display; means for synchronizing the operation of the 3D glasses with the operation of the LCD display by transmitting signals from the LCD display to the 3D glassed such that the left shutter is open and the right shutter is closed during the display of the left image on the LCD display and the left shutter is closed and the right shutter is open during the display of the right image on the LCD display; and means for turning off the backlight of the LCD display during a transition between the display of adjacent left and right images.