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US 10,852,865 B2Granted
In-cell touch type display device
AssigneeLG Display Co., Ltd.
InventorsKyoung-Wook Kim, Ki-Taeg Shin, Dong-Geun Lim, Ji-Won Kang
Life of this patent
Estimating the term…
Abstract
An in-cell touch type display device includes a touch electrode that is in a display panel and arranged at each touch block, a sensing line that is connected to the touch electrode, and transfers a common voltage during a display period, and at least one dummy line that is connected to the touch electrode, and has a resistance less than that of the touch electrode.
Claims19
An in-cell touch type display device having a display panel, comprising:
- a plurality of touch electrodes disposed at an array substrate and respectively formed at a plurality of touch blocks arranged in row and column directions of the display panel and separated and spaced apart from one another;
- a plurality of sensing lines extending along the column direction and electrically connected to the plurality of touch electrodes, respectively, and transferring a common voltage to the plurality of touch electrodes, respectively, during a display period, each sensing line contacting each touch electrode;
- at least one dummy line disposed at each touch block, the at least one dummy line being spaced apart from and in parallel with the sensing line contacting each touch electrode and connected to each touch electrode, and having an electrical resistance lower than that of each touch electrode at each touch block, wherein each dummy line disposed at each touch block is not connected with other dummy lines disposed at other touch blocks;
- and
- an insulating layer having first contact holes to connect each sensing line and each touch electrode, and second contact holes to connect each dummy line and each touch electrode,
- wherein a number of the second contact holes are greater than a number of the first contact holes.
3 more elements
An in-cell touch type display device having a display panel, comprising:
- a plurality of touch electrodes disposed at an array substrate and respectively formed at a plurality of touch blocks arranged in row and column directions of the display panel and separated and spaced apart from one another;
- a plurality of sensing lines extending along the column direction and electrically connected to the plurality of touch electrodes, respectively, and transferring a common voltage to the plurality of touch electrodes, respectively, during a display period, each sensing line contacting each touch electrode;
- at least one dummy line disposed at each touch block, the at least one dummy line being spaced apart from and in parallel with the sensing line contacting each touch electrode and connected to each touch electrode, and having an electrical resistance lower than that of each touch electrode at each touch block, wherein each dummy line disposed at each touch block is not connected with other dummy lines disposed at other touch blocks;
- and
- an insulating layer having first contact holes to connect each sensing line and each touch electrode, and second contact holes to connect each dummy line and each touch electrode,
- wherein each second contact hole has an area greater than that of each first contact hole.
3 more elements
An in-cell touch type display device having a display panel, comprising:
- a plurality of touch electrodes disposed at an array substrate and respectively formed at a plurality of touch blocks arranged in row and column directions of the display panel and separated and spaced apart from one another;
- a plurality of sensing lines extending along the column direction and electrically connected to the plurality of touch electrodes, respectively, and transferring a common voltage to the plurality of touch electrodes, respectively, during a display period, each sensing line contacting each touch electrode;
- at least one dummy line that is disposed at each touch block, the at least one dummy line being spaced apart from and in parallel with the sensing line contacting each touch electrode and connected to each touch electrode, and having and electrical resistance lower than that of each touch electrode at each touch block, wherein the at least one dummy line and the touch electrode are electrically in a parallel connection, so that a combined resistance between the touch electrode and the at least on dummy line is lower than an electrical resistance of the touch electrode alone, and wherein each dummy line disposed at each touch block is not connected with other dummy lines disposed at other touch blocks;
- and
- an insulating layer having first contact holes to connect each sensing line and each touch electrode, and second contact holes to connect each dummy line and each touch electrode, wherein a number of the second contact holes are greater than a number of the first contact holes.
2 more elements
An in-cell touch type display device having a display panel, comprising:
- a plurality of touch electrodes disposed at an array substrate and respectively formed at a plurality of touch blocks arranged in row and column directions of the display panel and separated and spaced apart from one another;
- a plurality of sensing line extending along the column direction and electrically connected to the plurality of touch electrodes, respectively, and transferring a common voltage to the plurality of touch electrodes, respectively, during a display period, each sensing line contacting a first portion of each touch electrode;
- a plurality of dummy lines disposed at each touch block, the plurality of dummy lines being spaced apart from and in parallel with the sensing line contacting each touch electrode and connected to each touch electrode, and having an electrical resistance lower than that of each touch electrode at each touch block, wherein the plurality of dummy lines are formed of a same material as the plurality of sensing lines, and each of the plurality of dummy lines disposed on each touch block is not connected with other dummy lines disposed at other touch blocks;
- and
- an insulating layer having first contact holes to connect each sensing line and each touch electrode, and second contact holes to connect each dummy line and each touch electrode,
- wherein a number of the second contact holes are greater than a number of the first contact holes.
3 more elements
An in-cell touch type display device having a display panel, comprising:
- a plurality of touch electrodes disposed at an array substrate and respectively formed at a plurality of touch blocks arranged in row and column directions of the display panel and separated and spaced apart from one another;
- a plurality of sensing line extending along the column direction and electrically connected to the plurality of touch electrodes, respectively, and transferring a common voltage to the plurality of touch electrodes, respectively, during a display period, each sensing line contacting each touch electrode;
- a plurality of dummy lines disposed at each touch block, the plurality of dummy lines being spaced apart from and in parallel with the sensing line contacting each touch electrode and connected to each touch electrode, and having an electrical resistance lower than that of each touch electrode at each touch block, wherein the plurality of dummy lines are formed of a same material as the plurality of sensing lines, and each of the plurality of dummy lines disposed on each touch block is not connected with other dummy lines disposed at other touch blocks;
- and
- an insulating layer having first contact holes to connect each sensing line and each touch electrode, and second contact holes to connect each dummy line and each touch electrode,
- wherein each second contact hole has an area greater than that of each first contact hole.
3 more elements
An in-cell touch type display device having a display panel, comprising:
- a plurality of touch electrodes disposed at an array substrate and respectively formed at a plurality of touch blocks arranged in row and column directions of the display panel and separated and spaced apart from one another;
- a plurality of sensing lines extending along the column direction and electrically connected to the plurality of touch electrodes, respectively, and transferring a common voltage to the plurality of touch electrodes, respectively, during a display period, each sensing line contacting each touch electrode;
- at least one dummy line that is disposed at each touch block, the at least one dummy line being spaced apart from and in parallel with the sensing line contacting each touch electrode and connected to each touch electrode, and having and electrical resistance lower than that of each touch electrode at each touch block, wherein the at least one dummy line and the touch electrode are electrically in a parallel connection, so that a combined resistance between the touch electrode and the at least on dummy line is lower than an electrical resistance of the touch electrode alone, and wherein each dummy line disposed at each touch block is not connected with other dummy lines disposed at other touch blocks;
- and
- an insulating layer having first contact holes to connect each sensing line and each touch electrode, and second contact holes to connect each dummy line and each touch electrode,
- wherein each second contact hole has an area greater than that of each first contact hole.
3 more elements
Dependencies are inferred from the claim text.