# US 8,772,053 B2 · Method and device for repairing open line defect in liquid crystal display array substrate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,772,053 B2 - Document ID: US8772053B2 - Status: Granted - Kind: B2 - Application number: 13/701,542 - Filed: 2012-11-15 - Published: 2014-05-15 - Granted: 2014-07-08 - Earliest claimed: 2012-11-15 - Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd. - Applicants: Shenzhen China Star Optoelectronics Technology Co., Ltd. - Inventors: Wenda Cheng - Web page: https://patentgrep.com/patent/US8772053B2 ## CPC - H10P 74/207: {Electrical properties, e.g. testing or measuring of resistance, deep levels or capacitance-voltage characteristics} - G02F 1/136259: {Repairing; Defects} - G02F 1/136263: {Line defects} - G02F 1/136272: {Auxiliary lines} - H10P: GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10 - 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 The present invention provides a method for repairing open line defect on LCD array substrate, which includes: when discovering open line defect on a pattern on LCD array substrate, identifying a repair line path of the open line on the pattern and scanning the repair line path; based on the result of scanning the repair line path, dividing the repair line path into at least two path segments and disposing corresponding coating speed for each path segment; and for each path segment, performing coating at the corresponding speed to form connected coating on the repair line path. The present invention also provides a device for repairing open line defect on LCD array substrate. As such, the present embodiment can increase success rate for repairing open lines. ## Claims ### Claim 1 A method for repairing open line defect in liquid crystal display (LCD) array substrate, which comprises: when discovering open line defect on a pattern on LCD array substrate, identifying a repair line path of the open line on the pattern and scanning the repair line path; based on the result of scanning the repair line path, dividing the repair line path into at least two path segments and disposing corresponding coating speed for each path segment; and for each path segment, performing coating at the corresponding speed to form connected coating on the repair line path. ### Claim 2 (depends on 1) The method for repairing open line defect in LCD array substrate as claimed in claim 1, characterized in that the step of scanning the repair line path comprises: using white light interferometry or laser scanning to scan the repair line path and obtaining the height data of each point on the repair line path. ### Claim 3 (depends on 2) The method for repairing open line defect in LCD array substrate as claimed in claim 2, characterized in that the step of based on the result of scanning the repair line path, dividing the repair line path into at least two path segments and disposing corresponding coating speed for each path segment comprises specifically: dividing the repair line path into at least two path segments; based on the changes in height data of each point on each path segment, disposing corresponding coating speed for the path segment, wherein the larger the changes in height data on the path segment, the slower the coating speed being disposed for the path segment. ### Claim 4 (depends on 2) The method for repairing open line defect in LCD array substrate as claimed in claim 2, characterized in that the step of dividing the repair line path into at least two path segments and disposing corresponding coating speed for each path segment comprises specifically: identifying the segment of the repair line path passing the edge of the coated line of the pattern on the array substrate; disposing the segment of the repair line path passing the edge of the coated line of the pattern and the segment of the repair line path not passing the edge of the coated line of the pattern as different path segments; and disposing a slower coating speed for segment of the repair line path passing the edge of the coated line of the pattern and a faster coating speed for segment of the repair line path not passing the edge of the coated line of the pattern. ### Claim 5 (depends on 3) The method for repairing open line defect in LCD array substrate as claimed in claim 3, characterized in that the coating formed on the repair line path reconnects the open line on the pattern and is insulated from other passed patterns without open line. ### Claim 6 (depends on 4) The method for repairing open line defect in LCD array substrate as claimed in claim 4, characterized in that the coating formed on the repair line path reconnects the open line on the pattern and is insulated from other passed patterns without open line. ### Claim 7 A method for repairing open line defect in liquid crystal display (LCD) array substrate, which comprises: when discovering open line defect on a pattern on LCD array substrate, identifying a repair line path of the open line on the pattern; dividing the repair line path into at least two path segments and disposing corresponding coating speed for each path segment; and for each path segment, performing coating at the corresponding speed to form connected coating on the repair line path. ### Claim 8 (depends on 7) The method for repairing open line defect in LCD array substrate as claimed in claim 7, characterized in that the step of dividing the repair line path into at least two path segments and disposing corresponding coating speed for each path segment comprises specifically: identifying the segment of the repair line path passing the edge of the coated line of the pattern on the array substrate; disposing the segment of the repair line path passing the edge of the coated line of the pattern and the segment of the repair line path not passing the edge of the coated line of the pattern as different path segments; and disposing a slower coating speed for segment of the repair line path passing the edge of the coated line of the pattern and a faster coating speed for segment of the repair line path not passing the edge of the coated line of the pattern. ### Claim 9 (depends on 8) The method for repairing open line defect in LCD array substrate as claimed in claim 8, characterized in that the coating formed on the repair line path reconnects the open line on the pattern and is insulated from other passed patterns without open line. ### Claim 10 A device for repairing open line defect in liquid crystal display (LCD) array substrate, which comprises: a detection module, configured to detect whether open line defect occurring on a pattern on an LCD array substrate; a scanning module, configured to identify and scan a repair line path for the open line on the pattern when the detection module detecting open line defect occurring on the pattern on the LCD array substrate; a disposing module, configured to, based on the result of scanning, divide the repair line path into at least two path segments and dispose corresponding coating speed for each path segment; and a coating device, configured to perform coating at the corresponding speed to form connected coating on the repair line path for each path segment disposed by the disposing module. ### Claim 11 (depends on 10) The device for repairing open line defect in LCD array substrate as claimed in claim 10, characterized in that the scanning module uses white light interferometry or laser scanning to scan the repair line path and obtaining the height data of each point on the repair line path. ### Claim 12 (depends on 11) The device for repairing open line defect in LCD array substrate as claimed in claim 11, characterized in that the disposing module, based on the changes in height data of each point on each path segment, disposes corresponding coating speed for the path segment, wherein the larger the changes in height data on the path segment, the slower the coating speed being disposed for the path segment. ### Claim 13 (depends on 11) The device for repairing open line defect in LCD array substrate as claimed in claim 11, characterized in that the disposing module, based on the result of the scanning module, disposes the segment of the repair line path passing the edge of the coated line of the pattern and the segment of the repair line path not passing the edge of the coated line of the pattern as different path segments; and disposes a slower coating speed for segment of the repair line path passing the edge of the coated line of the pattern and a faster coating speed for segment of the repair line path not passing the edge of the coated line of the pattern.