# US 7,609,246 B2 · Liquid crystal display and repair lines structure thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,609,246 B2 - Document ID: US7609246B2 - Status: Granted - Kind: B2 - Application number: 11/445,139 - Filed: 2006-06-02 - Published: 2007-05-17 - Granted: 2009-10-27 - Earliest claimed: 2005-11-14 - Assignees: Au Optronics Corporation - Inventors: Sheng-Kai Hsu; Po-Yuan Liu - Web page: https://patentgrep.com/patent/US7609246B2 ## CPC - G09G 3/3611: {Control of matrices with row and column drivers} - G09G 3/3674: {Details of drivers for scan electrodes} - G09G 3/3685: {Details of drivers for data electrodes} - G09G 2330/08: Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract A liquid crystal display and a repair lines structure thereof are provided. In the liquid crystal display, an amplifier is disposed inside an integrated circuit chip, such as a data driver or a scan driver. The amplifier is serially connected to the signal line via a repair line by means of an appropriate connection circuit. Consequently, the problem of signal attenuation occurring in the repair line will be improved. ## Claims ### Claim 1 A liquid crystal display, comprising: a display panel having a plurality of signal lines; at least one internal repair line formed on the display panel and crossed over the plurality of signal lines; at least one repair line, at least part of the repair line being formed on the display panel and crossed over the plurality of signal lines; at least one integrated circuit chip electrically connected to the signal lines, the integrated circuit chip comprising: at least one first amplifier having an input end selectively electrically connected to the at least one internal repair line, and an output end selectively electrically connected to the at least one repair line; and a connection circuit formed on the display panel, the connection circuit comprising: at least one first portion electrically connected to the output end of the at least one first amplifier and crossed over the at least one repair line; and at least one second portion electrically connected to the input end of the at least one amplifier and crossed over the at least one internal repair line. ### Claim 2 (depends on 1) The liquid crystal display of claim 1, wherein the at least one internal repair line comprises a first internal repair line and a second internal repair line, the at least one repair line comprises a first repair line and a second repair line, the at least one first portion of the connection circuit is crossed over the first repair line and the second repair line, and the at least one second portion of the connection circuit is crossed over the first internal repair line and the second internal repair line. ### Claim 3 (depends on 1) The liquid crystal display of claim 1, further comprising at least one printed circuit board electrically connected to the at least one integrated circuit chip, wherein the repair line comprises: at least one first portion disposed inside the printed circuit board; and at least one second portion formed on the display panel and crossed over the signal lines. ### Claim 4 (depends on 1) The liquid crystal display of claim 1, wherein the integrated circuit chip comprises a data driver, and the signal lines are data lines. ### Claim 5 (depends on 1) The liquid crystal display of claim 1, wherein the integrated circuit chip comprises a scan driver, and the signal lines are scan lines. ### Claim 6 (depends on 1) The liquid crystal display of claim 1, wherein the integrated circuit chip further comprises: at least one switch circuit disposed between the output end of the at least one amplifier and the at least one repair line. ### Claim 7 (depends on 1) The liquid crystal display of claim 1, further comprising: a control circuit for selectively providing power to the at least one first amplifier in operation. ### Claim 8 (depends on 1) The liquid crystal display of claim 1, further comprising: at least one second amplifier connected to the repair line in serial. ### Claim 9 (depends on 8) The liquid crystal display of claim 8, wherein the at least one second amplifier is connected to the at least one first amplifier in parallel. ### Claim 10 A liquid crystal display, comprising: a display panel having a plurality of signal lines; a plurality of internal repair line sets, each internal repair line set being formed on the display panel and crossed over part of the signal lines; at least one repair line, at least part of the repair line being formed on the display panel and crossed over the signal lines; a plurality of integrated circuit chips electrically connected to the signal lines, each integrated circuit chip comprising: at least one first amplifier having an input end selectively electrically connected to each internal repair line set, and an output end selectively electrically connected to the repair line; and a plurality of connection circuits formed on the display panel, each connection circuit comprising: at least one first portion electrically connected to the output end of the first amplifier and crossed over the repair line; and at least one second portion electrically connected to the input end of the first amplifier and crossed over each internal repair line set. ### Claim 11 (depends on 10) The liquid crystal display of claim 10, wherein each internal repair line set comprises at least one internal repair line. ### Claim 12 (depends on 10) The liquid crystal display of claim 10, wherein each internal repair line set comprises a first internal repair line and a second internal repair line, the at least one repair line comprises a first repair line and a second repair line, the at least one first portion of each connection circuit is crossed over the first repair line and the second repair line, and the at least one second portion of each connection circuit is crossed over the first internal repair line and the second internal repair line of one of the internal repair line sets. ### Claim 13 (depends on 10) The liquid crystal display of claim 10, further comprising at least one printed circuit board electrically connected to the plurality of integrated circuit chips, wherein the repair line comprises: at least one first portion disposed inside the printed circuit board; and at least one second portion formed on the display panel and crossed over the signal lines. ### Claim 14 (depends on 10) The liquid crystal display of claim 10, wherein the integrated circuit chips are data drivers, and the signal lines are data lines. ### Claim 15 (depends on 10) The liquid crystal display of claim 10, wherein the integrated circuit chips are scan drivers, and the signal lines are scan lines. ### Claim 16 (depends on 10) The liquid crystal display of claim 10, wherein each integrated circuit chip comprises at least one switch circuit disposed between the output end of the corresponding first amplifier and the corresponding repair line. ### Claim 17 (depends on 10) The liquid crystal display of claim 10, further comprising: a control circuit for selectively respectively providing power to the corresponding first amplifier in operation. ### Claim 18 (depends on 10) The liquid crystal display of claim 10, further comprising: at least one second amplifier connected to the repair line in serial. ### Claim 19 (depends on 18) The liquid crystal display of claim 18, wherein the at least one second amplifier is connected to the at least one first amplifier in parallel.