# US 2013/0155366 A1 · Liquid crystal display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0155366 A1 - Document ID: US20130155366A1 - Status: Published application - Kind: A1 - Application number: 13/706,545 - Filed: 2012-12-06 - Published: 2013-06-20 - Earliest claimed: 2011-12-20 - Assignees: Japan Display Inc. - Inventors: Shin MORITA - Web page: https://patentgrep.com/patent/US20130155366A1 ## CPC - G02F 1/134309: {characterised by their geometrical arrangement} - G02F 1/134336: {Matrix} - G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels} - G02F 1/136204: {Arrangements to prevent high voltage or static electricity failures} - G02F 1/136277: {formed on a semiconductor substrate, e.g. of silicon} - G02F 1/136286: {Wiring, e.g. gate line, drain line} - 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 In one embodiment, a first wiring line is pulled out from an active area, and a short ring circuit is provided in a peripheral portion of the active area. A first electrode is formed in the same layer as the first wiring line. A semiconductor layer is formed on the first electrode. A portion of a second electrode faces the first electrode through an insulating layer and arranged on the semiconductor layer. A third electrode is arranged on the semiconductor layer in the same layer as the second electrode. The first electrode includes a cutout portion arranged under an edge of the second electrode. ## Claims ### Claim 1 A liquid crystal display device, comprising: an array substrate including an active area formed of a plurality of pixel electrodes arranged in a matrix, a first wiring line pulled out from the active area, and a short ring circuit provided in a peripheral portion of the active area; a counter substrate arranged facing the array substrate and including a common electrode facing the pixel electrode; and a liquid crystal layer held between the array substrate and the counter substrate; wherein the short ring circuit includes, a first electrode formed in the same layer as the first wiring line, a semiconductor layer on the first electrode, a second electrode, a portion of the second electrode facing the first electrode through a first insulating layer and arranged on the semiconductor layer, a third electrode arranged on the semiconductor layer in the same layer as the second electrode, and the first electrode includes a cutout portion arranged under the second electrode. ### Claim 2 (depends on 1) The liquid crystal display device according to claim 1, the cutout portion is provided at a location in which an edge of the first electrode crosses an edge of the second electrode. ### Claim 3 (depends on 1) The liquid crystal display device according to claim 1, further comprising a second wiring line so as to surround the active area, wherein the second electrode or the third electrode is electrically connected with the second wiring line. ### Claim 4 (depends on 1) The liquid crystal display device according to claim 1, further comprising a seal material arranged so as to surround the active area, wherein the short ring circuit is arranged between the seal material and the active area, and a second insulating layer is arranged on the first and second electrodes. ### Claim 5 A liquid crystal display device, comprising: an array substrate including an active area formed of a plurality of pixel electrodes arranged in a matrix, a first wiring line pulled out from the active area, and a short ring circuit provided in a peripheral portion of the active area; a counter substrate arranged facing the array substrate and including a common electrode facing the pixel electrode; and a liquid crystal layer held between the array substrate and the counter substrate; wherein the short ring circuit includes, a first electrode formed in the same layer as the first wiring line, a semiconductor layer on the first electrode, a second electrode, a portion of the second electrode facing the first electrode through a first insulating layer and arranged on the semiconductor layer, a third electrode arranged on the semiconductor layer in the same layer as the second electrode, and the first electrode includes a convex portion arranged under the second electrode projecting from an edge of the second electrode. ### Claim 6 (depends on 5) The liquid crystal display device according to claim 5, the convex portion is provided at a location in which an edge of the second electrode crosses an edge of the first electrode. ### Claim 7 (depends on 5) The liquid crystal display device according to claim 5, further comprising a second wiring line so as to surround the active area, wherein the second electrode or the third electrode is electrically connected with the second wiring line. ### Claim 8 (depends on 5) The liquid crystal display device according to claim 5, further comprising a seal material arranged so as to surround the active area, wherein the short ring circuit is arranged between the seal material and the active area, and a second insulating layer is arranged on the first and second electrodes. ### Claim 9 A liquid crystal display device, comprising: an array substrate including an active area formed of a plurality of pixel electrodes arranged in a matrix, a first wiring line pulled out from the active area, and a short ring circuit provided in a peripheral portion of the active area; a counter substrate arranged facing the array substrate and including a common electrode facing the pixel electrode; a liquid crystal layer held between the array substrate and the counter substrate; wherein the short ring circuit includes; a first electrode formed in the same layer as the first wiring line, a semiconductor layer on the first electrode, and a second electrode, a portion of the second electrode facing the first electrode through a first insulating layer and arranged on the semiconductor layer, and the first insulating layer including a step portion formed between the first electrode and the second electrode and having a thinner thickness than other portions of the first insulating layer; and a third electrode arranged on the semiconductor layer in the same layer as the second electrode; and wherein the first electrode includes a cutout portion arranged under the second electrode, and the first electrode is electrically connected with the second electrode in a circumference of the cutout portion when a static electricity is impressed between the first electrode and the second electrode by break down of the step portion of the first insulating layer. ### Claim 10 (depends on 9) The liquid crystal display device according to claim 9, the cutout portion is provided at a location in which an edge of the first electrode crosses an end of the second electrode. ### Claim 11 (depends on 9) The liquid crystal display device according to claim 9, further comprising a second wiring line so as to surround the active area, wherein the second electrode or the third electrode is electrically connected with the second wiring line. ### Claim 12 (depends on 9) The liquid crystal display device according to claim 9, further comprising a seal material arranged so as to surround the active area, wherein the short ring circuit is arranged between the seal material and the active area, and a second insulating layer is arranged on the first and second electrodes. ### Claim 13 A liquid crystal display device, comprising: an array substrate including an active area formed of a plurality of pixel electrodes arranged in a matrix, a first wiring line pulled out from the active area, and a short ring circuit provided in a peripheral portion of the active area; a counter substrate arranged facing the array substrate and including a common electrode facing the pixel electrode; and a liquid crystal layer held between the array substrate and the counter substrate; wherein the short ring circuit includes; a first electrode formed in the same layer as the first wiring line, a semiconductor layer on the first electrode, a second electrode, a portion of the second electrode facing the first electrode through a first insulating layer and arranged on the semiconductor layer, and the first insulating layer including a step portion formed between the first electrode and the second electrode and having a thinner thickness than other portions of the first insulating layer, and a third electrode arranged on the semiconductor layer in the same layer as the second electrode; and wherein the first electrode includes a convex portion arranged under the second electrode projecting from an edge of the second electrode, and the first electrode is electrically connected with the second electrode in a circumference of the concave portion when a static electricity is impressed between the first electrode and the second electrode by break down of the step portion of the first insulating layer. ### Claim 14 (depends on 13) The liquid crystal display device according to claim 13, the convex portion is provided at a location in which an edge of the first electrode crosses an edge of the second electrode. ### Claim 15 (depends on 13) The liquid crystal display device according to claim 13, further comprising a second wiring line so as to surround the active area, wherein the second electrode or the third electrode is electrically connected with the second wiring line. ### Claim 16 (depends on 13) The liquid crystal display device according to claim 13, further comprising a seal material arranged so as to surround the active area, wherein the short ring circuit is arranged between the seal material and the active area, and a second insulating layer is arranged on the first and second electrodes.