# US 8,542,161 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,542,161 B2 - Document ID: US8542161B2 - Status: Granted - Kind: B2 - Application number: 12/498,323 - Filed: 2009-07-06 - Published: 2010-07-29 - Granted: 2013-09-24 - Earliest claimed: 2009-01-23 - Assignees: Au Optronics Corporation - Applicants: Yi-Chen Chiang; Yu-Cheng Chen - Inventors: Yi-Chen Chiang; Yu-Cheng Chen - Web page: https://patentgrep.com/patent/US8542161B2 ## CPC - G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)} - G09G 2300/0413: Details of dummy pixels or dummy lines in flat panels - G09G 2300/0426: Layout of electrodes and connections - G09G 2310/0281: Arrangement of scan or data electrode driver circuits at the periphery of a panel not inherent to a split matrix structure - 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 display device includes a substrate, gate lines, data lines, gate tracking lines, and dummy gate tracking lines. The gate lines and the data lines are arranged perpendicularly. Each gate tracking line is disposed between one parts of two adjacent data lines, and substantially parallel to the data lines. Each dummy gate tracking line is electrically disconnected to the gate lines, disposed between other parts of two adjacent data lines, and substantially parallel to the data lines. ## Claims ### Claim 1 A display device, comprising: a substrate; a plurality of pixels, wherein each of the pixels comprises a switch device having a gate electrode and a source electrode; a plurality of gate lines disposed on the substrate, wherein each of the gate lines is connected with a corresponding gate electrode of the switch device; a plurality of data lines disposed on the substrate; a plurality of gate tracking lines disposed on the substrate, wherein each of the gate tracking lines has a gate signal input terminal and is electrically connected between a driver and a corresponding gate line, at least one of the gate tracking lines is disposed between two adjacent data lines, a plurality of gate driving signals are applied to the gate lines by way of each of the gate signal input terminals of the gate tracking lines, at least one of the gate tracking lines intersects at least one of the gate lines, and the gate tracking lines are disconnected from the source electrode of the switch device; and a plurality of dummy gate tracking lines disposed on the substrate, wherein each of the dummy gate tracking lines is electrically disconnected from the gate lines and the data lines, each of the dummy gate tracking lines is parallel to the data lines, each of the dummy gate tracking lines is configured to deliver a modulating signal which is not delivered to the gate lines, at least one of the dummy gate tracking lines intersects at least one of the gate lines, and at least one of the dummy gate tacking lines is disposed between other two adjacent data lines. ### Claim 2 (depends on 1) The display device of claim 1, wherein the modulating signal comprises a square wave signal. ### Claim 3 (depends on 1) The display device of claim 1, wherein the modulating signal comprises a signal with constant level. ### Claim 4 (depends on 1) The display device of claim 1, wherein the substrate has a first peripheral region disposed on a side of the substrate, and each of the data lines has a signal input terminal disposed in the first peripheral region of the substrate. ### Claim 5 (depends on 4) The display device of claim 4, wherein each of the dummy gate tracking lines has a signal input terminal disposed in the first peripheral region of the substrate. ### Claim 6 (depends on 4) The display device of claim 4, wherein the substrate further has a second peripheral region disposed on another side of the substrate opposite to the first peripheral region, and each of the dummy gate tracking lines has a signal input terminal disposed in the second peripheral region of the substrate. ### Claim 7 (depends on 1) The display device of claim 1, wherein the substrate has an active region, and the dummy gate tracking lines are disposed on a side of the active region. ### Claim 8 (depends on 1) The display device of claim 1, wherein the substrate has an active region, a part of the dummy gate tracking lines are disposed on a side of the active region, and the other part of the dummy gate tracking lines are disposed on another side of the active region. ### Claim 9 (depends on 1) The display device of claim 1, wherein the gate driving signal and the modulating signal are identical. ### Claim 10 (depends on 1) The display device of claim 1, wherein the gate tracking lines are configured to deliver the gate driving signals to the gate electrodes of the switch devices via the gate lines. ### Claim 11 (depends on 1) The display device of claim 1, wherein the gate tracking lines and the data lines are disposed substantially parallel to each other and in an alternate way. ### Claim 12 (depends on 1) The display device of claim 1, wherein each of the gate tracking lines is not disposed between any two of the dummy gate tracking lines. ### Claim 13 A display device, comprising: a substrate; a plurality of first pixels and a plurality of second pixels, wherein each of the first pixels comprises a first switching device, each of the second pixels comprises a second switching device, and a drain electrode of each of the first switching devices is electrically connected to a source electrode of the adjacent second switching device; a plurality of gate lines disposed on the substrate, wherein each of the gate lines is connected with a corresponding gate electrode of the first switch device or the second switch device; a plurality of data lines disposed on the substrate; a plurality of gate tracking lines disposed on the substrate, wherein each of the gate tracking lines has a gate signal input terminal and is electrically connected between a driver and a corresponding gate line, at least one of the gate tracking lines is disposed between two adjacent data lines, and the gate tracking lines are disconnected from the source electrodes of the first switch devices and the second switch devices; and a plurality of dummy gate tracking lines disposed on the substrate, wherein each of the dummy gate tracking lines is electrically disconnected from the gate lines and the data lines, each of the dummy gate tracking lines is parallel to the data lines, each of the dummy gate tracking lines is configured to deliver a modulating signal which is not delivered to the gate lines, at least one of the dummy gate tracking lines intersects at least one of the gate lines, and at least one of the dummy gate tacking lines is disposed between other two adjacent data lines. ### Claim 14 (depends on 13) The display device of claim 13, wherein a plurality of gate driving signals are applied to the gate lines by way of each of the gate signal input terminals of the gate tracking lines, and at least one of the gate tracking lines intersects at least one of the gate lines. ### Claim 15 (depends on 13) The display device of claim 13, wherein the gate tracking lines are configured to deliver a plurality of gate driving signals to the gate electrodes of the first switch devices and the second switch devices via the gate lines. ### Claim 16 (depends on 13) The display device of claim 13, wherein each of the gate tracking lines is not disposed between any two of the dummy gate tracking lines.