# US 10,312,231 B2 · Array substate and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,312,231 B2 - Document ID: US10312231B2 - Status: Granted - Kind: B2 - Application number: 15/507,515 - Filed: 2016-02-19 - Published: 2017-10-12 - Granted: 2019-06-04 - Earliest claimed: 2015-09-02 - Assignees: Boe Technology Group Co., Ltd. - Applicants: Boe Technology Group Co., Ltd. - Inventors: Wenbo Li; Jianbo Xian - Web page: https://patentgrep.com/patent/US10312231B2 ## CPC - H10D 89/811: {using FETs as protective elements} - G02F 1/1362: Active matrix addressed cells {(G02F1/134336, G02F1/134363 take precedence)} - G02F 1/136204: {Arrangements to prevent high voltage or static electricity failures} - G02F 1/136286: {Wiring, e.g. gate line, drain line} - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/60: wherein the TFTs are in active matrices - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES - 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 Disclosed are an array substrate and a display device, which can achieve protection of a signal line against static electricity and meanwhile decrease a load on the signal line, so as to improve product yield. The array substrate includes a first signal line, a second signal line and an electrostatic protection device; wherein the electrostatic protection device includes a suspension Thin Film Transistor (TFT), a source electrode of the suspension TFT is connected with the first signal line, a gate electrode of the suspension TFT is connected with the second signal line, and a drain electrode of the suspension TFT is suspended; and wherein the drain electrode and the gate electrode have an overlapping region. The display device includes the above-mentioned array substrate. ## Claims ### Claim 1 An array substrate, comprising: a first signal line, a second signal line and an electrostatic protection device, wherein the electrostatic protection device comprises a suspension Thin Film Transistor (TFT), wherein a source electrode of the suspension TFT is connected with the first signal line, a gate electrode of the suspension TFT is connected with the second signal line, and a drain electrode of the suspension TFT is suspended, and the drain electrode and the gate electrode have an overlapping region, and wherein every first signal line is connected to at least two electrostatic protection devices. ### Claim 2 (depends on 1) The array substrate according to claim 1, wherein drain electrodes of suspension TFTs in the electrostatic suspension devices connected to a same first signal line are electrically connected with each other. ### Claim 3 (depends on 1) The array substrate according to claim 1, wherein gate electrodes of suspension TFTs in the electrostatic suspension devices connected to a same first signal line are electrically connected with each other. ### Claim 4 (depends on 1) The array substrate according to claim 1, wherein the suspension TFT further comprises an active layer arranged between the gate electrode and the drain electrode, and active layers of suspension TFTs in the electrostatic protection devices connected to a same first signal line are electrically connected with each other. ### Claim 5 (depends on 1) The array substrate according to claim 1, wherein suspension TFTs in the electrostatic protection devices connected to two adjacent first signal lines share a same drain electrode and a same gate electrode. ### Claim 6 (depends on 1) The array substrate according to claim 1, wherein the electrostatic protection device is connected with two adjacent first signal lines at the same time. ### Claim 7 (depends on 1) The array substrate according to claim 1, wherein the source electrode of the suspension TFT is selected from a group consisted of a U-shaped electrode, an L-shaped electrode and a W-shaped electrode. ### Claim 8 (depends on 1) The array substrate according to claim 1, further comprising a common electrode line, wherein the second signal line is electrically connected with the common electrode line. ### Claim 9 (depends on 8) The array substrate according to claim 8, further comprising a first anti-static unit, wherein an input end of the first anti-static unit is connected with the second signal line, and an output end of the first anti-static unit is electrically connected with the common electrode line. ### Claim 10 (depends on 1) The array substrate according to claim 1, wherein the first signal line is a gate line or a data line. ### Claim 11 (depends on 1) The array substrate according to claim 1, further comprising a second anti-static unit and a short circuit ring, wherein an input end of the second anti-static unit is connected with the first signal line, and an output end of the second anti-static unit is connected with the short circuit ring. ### Claim 12 (depends on 1) A display device, comprising the array substrate according to claim 1. ### Claim 13 (depends on 12) The display device according to claim 12, wherein drain electrodes of suspension TFTs in the electrostatic suspension devices connected to a same first signal line are electrically connected with each other. ### Claim 14 (depends on 12) The display device according to claim 12, wherein gate electrodes of suspension TFTs in the electrostatic suspension devices connected to a same first signal line are electrically connected with each other. ### Claim 15 (depends on 12) The display device according to claim 12, wherein the suspension TFT further comprises an active layer arranged between the gate electrode and the drain electrode, and active layers of suspension TFTs in the electrostatic protection devices connected to a same first signal line are electrically connected with each other. ### Claim 16 (depends on 12) The display device according to claim 12, wherein suspension TFTs in the electrostatic protection devices connected to two adjacent first signal lines share a same drain electrode and a same gate electrode. ### Claim 17 (depends on 12) The display device according to claim 12, wherein the electrostatic protection device is connected with two adjacent first signal lines at the same time. ### Claim 18 (depends on 12) The display device according to claim 12, wherein the array substrate further comprises a common electrode line, wherein the second signal line is electrically connected with the common electrode line. ### Claim 19 (depends on 18) The display device according to claim 18, wherein the array substrate further comprises a first anti-static unit, wherein an input end of the first anti-static unit is connected with the second signal line, and an output end of the first anti-static unit is electrically connected with the common electrode line. ### Claim 20 (depends on 12) The display device according to claim 12, wherein the array substrate further comprises a second anti-static unit and a short circuit ring, wherein an input end of the second anti-static unit is connected with the first signal line, and an output end of the second anti-static unit is connected with the short circuit ring.