# US 7,612,833 B2 · Stereoscopic display device and driving method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,612,833 B2 - Document ID: US7612833B2 - Status: Granted - Kind: B2 - Application number: 11/168,399 - Filed: 2005-06-29 - Published: 2006-09-28 - Granted: 2009-11-03 - Earliest claimed: 2004-12-30 - Assignees: LG Display Co., Ltd. - Inventors: Hyeok-Soo Kim - Web page: https://patentgrep.com/patent/US7612833B2 ## CPC - G02B 30/27: involving lenticular arrays - G02B 30/31: involving active parallax barriers (involving directional light or back-light sources G02B30/33) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract A stereoscopic display device and a method of driving the display device are provided. The device includes a display panel displaying images, and a parallax barrier panel facing the display panel. The parallax barrier panel includes at least one first barrier-zone, and first and second transmission-zones disposed between two adjacent first barrier-zones. Each of the first and second transmission-zones has white and black states alternatingly in a three-dimension mode. ## Claims ### Claim 1 A stereoscopic display device comprising: a display panel displaying images; and a parallax barrier panel facing the display panel and including at least one first barrier-zone, and first and second transmission-zones disposed between two adjacent first barrier-zones, wherein each of the first and second transmission-zones has white and black states alternatingly in a three-dimension mode. ### Claim 2 (depends on 1) The device according to claim 1, wherein each of the first barrier-zone and the first and second transmission-zones has a white state in a two-dimension mode, and the first barrier-zone has a black state in the three-dimension mode. ### Claim 3 (depends on 1) The device according to claim 1, wherein the parallax barrier panel includes: a first barrier electrode corresponding to the first barrier-zone; and first and second transmission electrodes corresponding to the first and second transmission-zones, respectively. ### Claim 4 (depends on 3) The device according to claim 3, wherein the parallax barrier panel further includes: first and second-substrates facing each other; and a common electrode disposed between the first and second substrates. ### Claim 5 (depends on 4) The device according to claim 4, wherein the first barrier electrode and the first and second transmission electrodes are disposed on an inner surface of the first substrate, and the common electrode is disposed on an inner surface of the second substrate. ### Claim 6 (depends on 4) The device according to claim 4, wherein the parallax barrier panel further includes an insulator on the first substrate between the first barrier electrode and the first and second transmission electrodes. ### Claim 7 (depends on 6) The device according to claim 6, wherein the first barrier electrode is disposed between the first substrate and the insulator, and the first and second transmission electrodes are disposed on the insulator. ### Claim 8 (depends on 6) The device according to claim 6, wherein the first and second transmission electrodes are disposed between the first substrate and the insulator, and the first barrier electrode is disposed on the insulator. ### Claim 9 (depends on 4) The device according to claim 4, wherein the common electrode includes a first portion facing the first barrier-zone and a second portion facing the first and second transmission zones. ### Claim 10 (depends on 9) The device according to claim 9, wherein the first and second transmission electrodes and the first portion of the common electrode are disposed on an inner surface of one of the first and second substrates, and the first barrier electrode and the second portion of the common electrode are disposed on an inner surface of the other one of the first and second substrates. ### Claim 11 (depends on 10) The device according to claim 10, wherein the parallax barrier panel further includes a first insulator between the first portion of the common electrode and the first and second transmission electrodes, and a second insulator between the second portion of the common electrode and the first barrier electrode. ### Claim 12 (depends on 11) The device according to claim 11, wherein the first portion of the common electrode is disposed between the first substrate and the first insulator, and the first and second transmission electrodes are disposed on the first insulator, and wherein the second portion of the common electrode is disposed between the second substrate and the second insulator, and the first barrier electrode is disposed on the second insulator. ### Claim 13 (depends on 11) The device according to claim 11, wherein the first and second transmission electrodes are disposed between the first substrate and the first insulator, and the first portion of the common electrode is disposed on the first insulator, and wherein the first barrier electrode is disposed between the second substrate and the second insulator, and the second portion of the common electrode is disposed on the second insulator. ### Claim 14 (depends on 11) The device according to claim 11, wherein the first portion of the common electrode is disposed between the second substrate and the second insulator, and the first and second transmission electrodes are disposed on the second insulator, and wherein the second portion of the common electrode is disposed between the first substrate and the first insulator, and the first barrier electrode is disposed on the first insulator. ### Claim 15 (depends on 11) The device according to claim 11, wherein the first and second transmission electrodes are disposed between the second substrate and the second insulator, and the first portion of the common electrode is disposed on the second insulator, and wherein the first barrier electrode is disposed between the first substrate and the first insulator, and the second portion of the common electrode is disposed on the first insulator. ### Claim 16 (depends on 4) The device according to claim 4, wherein the parallax barrier panel further includes a second barrier-zone between the adjacent first and second transmission-zones, and a second barrier electrode corresponding to the second barrier-zone. ### Claim 17 (depends on 16) The device according to claim 16, wherein the first and second barrier electrodes and the first and second transmission electrodes are disposed on an inner surface of the first substrate, and the common electrode is disposed on an inner surface of the second substrate. ### Claim 18 (depends on 16) The device according to claim 16, wherein the parallax barrier panel further includes an insulator on the first substrate between the first and second barrier electrodes and the first and second transmission electrodes. ### Claim 19 (depends on 18) The device according to claim 18, wherein the first and second barrier electrodes are disposed between the first substrate and the insulator, and the first and second transmission electrodes are disposed on the insulator. ### Claim 20 (depends on 18) The device according to claim 18, wherein the first and second transmission electrodes are disposed between the first substrate and the insulator, and the first and second barrier electrodes are disposed on the insulator. ### Claim 21 (depends on 16) The device according to claim 16, wherein the common electrode includes a first portion facing the first and second barrier-zones and a second portion facing the first and second transmission zones. ### Claim 22 (depends on 21) The device according to claim 21, wherein the first and second transmission electrodes and the first portion of the common electrode are disposed on an inner surface of one of the first and second substrates, and the first and second barrier electrodes and the second portion of the common electrode are disposed on an inner surface of the other one of the first and second substrates. ### Claim 23 (depends on 22) The device according to claim 22, wherein the parallax barrier panel further includes a first insulator between the first portion of the common electrode and the first and second transmission electrodes, and a second insulator between the second portion of the common electrode and the first and second barrier electrodes. ### Claim 24 (depends on 23) The device according to claim 23, wherein the first portion of the common electrode is disposed between the first substrate and the first insulator, and the first and second transmission electrodes are disposed on the first insulator, and wherein the second portion of the common electrode is disposed between the second substrate and the second insulator, and the first and second barrier electrodes are disposed on the second insulator. ### Claim 25 (depends on 23) The device according to claim 23, wherein the first and second transmission electrodes are disposed between the first substrate and the first insulator, and the first portion of the common electrode is disposed on the first insulator, and wherein the first and second barrier electrodes are disposed between the second substrate and the second insulator, and the second portion of the common electrode is disposed on the second insulator. ### Claim 26 (depends on 23) The device according to claim 23, wherein the first portion of the common electrode is disposed between the second substrate and the second insulator, and the first and second transmission electrodes are disposed on the second insulator, and wherein the second portion of the common electrode is disposed between the first substrate and the first insulator, and the first and second barrier electrodes are disposed on the first insulator. ### Claim 27 (depends on 23) The device according to claim 23, wherein the first and second transmission electrodes are disposed between the second substrate and the second insulator; and the first portion of the common electrode is disposed on the second insulator, and wherein the first and second barrier electrodes are disposed between the first substrate and the first insulator, and the second portion of the common electrode is disposed on the first insulator. ### Claim 28 (depends on 1) The device according to claim 1, wherein the parallax barrier panel is disposed between the display panel and a backlight, or between the parallax barrier panel and the backlight. ### Claim 29 (depends on 1) The device according to claim 1, wherein the display panel is a liquid crystal panel. ### Claim 30 (depends on 1) The device according to claim 1, wherein states of the first and second transmission-zones are opposite to each other at a given time in the three-dimension mode. ### Claim 31 (depends on 1) The device according to claim 1, wherein the parallax barrier panel is a non-luminous type panel including a liquid crystal panel, and the display panel is a luminous type panel including an electro-luminescent panel. ### Claim 32 A stereoscopic display device comprising: a display panel displaying images; and a parallax barrier panel supplying light to the display panel, and including at least one first barrier-zone and first and second transmission-zones disposed between two adjacent first barrier-zones, wherein each of the first and second transmission-zones supplies and shuts light alternatingly in a three-dimension mode. ### Claim 33 (depends on 32) The device according to claim 32, wherein the parallax barrier panel is a luminous type panel including an electro-luminescent panel, and the display panel is a non-luminous type panel including a liquid crystal panel. ### Claim 34 A method of driving a stereoscopic display device, the method comprising: displaying images in a display panel; and driving a parallax barrier panel having at least one first barrier-zone, and first and second transmission-zones between two adjacent first barrier-zones, wherein in a three-dimension mode, the driving step includes: shielding light incident to the first barrier-zone, and alternatingly shielding and passing light incident to each of the first and second transmission-zones. ### Claim 35 (depends on 34) The method according to claim 34, wherein in a two-dimension mode, the driving step includes passing light incident to the first barrier-zone and the first and second transmission zones. ### Claim 36 (depends on 34) The method according to claim 34, wherein the light-shielding and the light-passing between the first and second transmission-zones are opposite to each other at a given time in the three-dimension mode. ### Claim 37 (depends on 34) The method according to claim 34, wherein the parallax barrier panel further includes a second barrier-zone between the adjacent first and second transmission-zones, and in the three-dimension mode, the driving step shields light incident to the first and second barrier-zones. ### Claim 38 (depends on 34) The method according to claim 34, wherein the parallax barrier panel is a liquid crystal panel, and/or the display panel is a liquid crystal panel. ### Claim 39 A method of driving a stereoscopic display device, the method comprising: displaying images in a display panel; and driving a parallax barrier panel having at least one first barrier-zone, and first and second transmission-zones between two adjacent first barrier zones, wherein in a three-dimension mode, the driving step includes: shutting light from the first barrier-zone, and alternatingly shutting and supplying light from each of the first and second transmission-zones. ### Claim 40 (depends on 39) The method according to claim 39, wherein in a two-dimension mode, the driving step includes: supplying light from the first barrier-zone and the first and second transmission-zones. ### Claim 41 (depends on 39) The method according to claim 39, wherein the parallax barrier panel is a luminous type panel including an electro-luminescent panel, and the display panel is a non-luminous type panel including a liquid crystal panel. ### Claim 42 (depends on 39) The method according to claim 39, wherein the parallax barrier panel further includes a second barrier-zone between the adjacent first and second transmission-zones, and in the three-dimension mode, the driving step shuts light from the first and second barrier-zones.