# US 7,609,330 B2 · Parallax barrier liquid crystal panel for stereoscopic display device and fabrication method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,609,330 B2 - Document ID: US7609330B2 - Status: Granted - Kind: B2 - Application number: 11/167,597 - Filed: 2005-06-28 - Published: 2006-07-06 - Granted: 2009-10-27 - Earliest claimed: 2004-12-30 - Assignees: LG Display Co., Ltd. - Inventors: Ju-Han Kim - Web page: https://patentgrep.com/patent/US7609330B2 ## CPC - G02B 30/27: involving lenticular arrays - G02B 30/31: involving active parallax barriers (involving directional light or back-light sources G02B30/33) - G02F 1/13471: {in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells (G02F1/13475 takes precedence)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - 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 ## Abstract A parallax barrier liquid crystal panel for a stereoscopic display device, including a first substrate including an active region and a non-active region, a second substrate facing the first substrate, first, second, and third lines in the non-active region, at least one barrier electrode in the active region and connected to the first line, at least one pair of first and second transmission electrodes disposed adjacent to the barrier electrode and connected to the second and third lines, respectively, a common electrode on the second substrate, and a liquid crystal layer between the first and second substrates. ## Claims ### Claim 1 A parallax barrier liquid crystal panel for a stereoscopic display device, comprising: a first substrate including an active region and a non-active region; a second substrate facing the first substrate; first, second, and third conductive lines in the non-active region; at least one barrier electrode in the active region and connected to the first line; at least one pair of first and second transmission electrodes disposed adjacent to the barrier electrode and connected to the second and third lines, respectively; a first insulator between the first, second, and third lines and the barrier electrode; a second insulator between the barrier electrode and the first and second transmission electrodes; a common electrode on the second substrate; and a liquid crystal layer between the first and second substrates, wherein the first insulator further includes a first contact hole connecting the first line and the first barrier electrode, and the second insulator further includes a second contact hole connecting the second line and the first transmission electrode and a third contact hole connecting the third line and the second transmission electrode. ### Claim 2 (depends on 1) The device according to claim 1, further comprising at least one sub-barrier electrode, the sub-barrier electrode disposed between the first and second transmission electrodes. ### Claim 3 (depends on 1) The device according to claim 1, wherein the first, second, and third lines are parallel to and spaced apart from each other. ### Claim 4 (depends on 3) The device according to claim 3, wherein one of the barrier electrode, the first transmission electrode, and the second transmission electrode and one of the first, second, and third lines cross each other. ### Claim 5 (depends on 4) The device according to claim 4, wherein the one of the barrier electrode, the first transmission electrode, and the second transmission electrode crossing the one of the first, second, and third lines has a neck shape at each crossing point. ### Claim 6 (depends on 1) The device according to claim 1, further comprising a common line connected to the common electrode and disposed in an outermost portion of the non-active region. ### Claim 7 (depends on 1) The device according to claim 1, wherein the first, second, and third lines are made of an opaque metal, and the barrier electrode, the first transmission electrode, and the second transmission electrode are made of a transparent material. ### Claim 8 (depends on 7) The device according to claim 7, wherein the opaque metal is one of aluminum (Al) and an Al alloy, and the transparent material is one of indium-tin-oxide (ITO) and indium-zinc-oxide (IZO). ### Claim 9 (depends on 1) The device according to claim 1, further comprising a margin region between the active region and the non-active region, the margin region including the barrier electrode, the first transmission electrode, and the second transmission electrode. ### Claim 10 (depends on 9) The device according to claim 9, wherein a width of the margin region is within a range of about 0.4 mm to about 0.6 mm. ### Claim 11 (depends on 1) The device according to claim 1, further comprising a first scribing key on the first substrate corresponding to an edge of the second substrate. ### Claim 12 (depends on 1) The device according to claim 1, further comprising an electrode pad on an edge of the non-active region, the electrode pad connected to the first, second, and third lines. ### Claim 13 (depends on 12) The device according to claim 12, wherein the electrode pad is a flexible printed circuit (FPC) electrode pad. ### Claim 14 A method of fabricating a parallax barrier liquid crystal panel for a stereoscopic display device, comprising: forming first, second, and third conductive lines on a first substrate including an active region and a non-active region; forming a first insulator on the first, second, and third lines, the first insulator including at least one first contact hole exposing the first line; forming at least one barrier electrode on the first insulator, the barrier electrode connected to the first line through the first contact hole; forming a second insulator on the barrier electrode, the second insulator including at least one pair of second and third contact holes exposing the second and third lines, respectively; forming at least one pair of first and second transmission electrodes on the second insulator, the first transmission electrode connected to the second line through the second contact hole and the second transmission electrode connected to the third line through the third contact hole; forming a second substrate including a common electrode; attaching the first and second substrates together; and scribing the first and second substrates. ### Claim 15 (depends on 14) The method according to claim 14, further comprising forming a sub barrier electrode between the first and second transmission electrodes. ### Claim 16 (depends on 15) The method according to claim 15, wherein one of the barrier electrode, the first transmission electrode, and the second transmission electrode and one of the first, second, and third lines cross each other. ### Claim 17 (depends on 16) The method according to claim 16, wherein the one of the barrier electrode, the first transmission electrode, and the second transmission electrode crossing the one of the first, second, and third lines has a neck shape at each crossing point. ### Claim 18 (depends on 14) The method according to claim 14, further comprising forming a common line connected to the common electrode in an outermost portion of the non-active region. ### Claim 19 (depends on 14) The method according to claim 14, further comprising forming a margin region between the active region and the non-active region and including the barrier electrode, the first transmission electrode, and the second transmission electrode. ### Claim 20 (depends on 19) The method according to claim 19, wherein a width of the margin region is within a range of about 0.4 mm to about 0.6 mm. ### Claim 21 (depends on 14) The method according to claim 14, further comprising forming first and second scribing keys on the first substrate. ### Claim 22 (depends on 21) The method according to claim 21, wherein the first and second substrates are scribed along the first and second scribing keys, respectively. ### Claim 23 (depends on 21) The method according to claim 21, wherein the first and second scribing keys are made of the same materials as the first, second, and third lines. ### Claim 24 (depends on 14) The method according to claim 14, further comprising forming an electrode pad on an edge of the non-active region connected to the first, second, and third lines. ### Claim 25 (depends on 24) The method according to claim 24, wherein the electrode pad is a flexible printed circuit (FPC) electrode pad. ### Claim 26 (depends on 14) The method according to claim 14, further comprising forming a shorting line in an exterior of the non-active region connecting the electrode pad. ### Claim 27 (depends on 26) The method according to claim 26, wherein the step of scribing the first and second substrates simultaneously removes the shorting line. ### Claim 28 (depends on 14) The method according to claim 14, wherein the first, second, and third lines are made of an opaque metal, and the barrier electrode, the first transmission electrode, and the second transmission electrode are made of a transparent material. ### Claim 29 (depends on 28) The method according to claim 28, wherein the opaque metal is one of aluminum (Al) and an Al alloy, and the transparent material is one of indium-tin-oxide (ITO) and indium-zinc-oxide (IZO).